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Charles County, Maryland

MWRF Final ClarifierImprovements

Project No. UN-XXXX

August 2018100% Submittal

CHARLES COUNTY, MARYLAND

MWRF FINAL CLARIFIER IMPROVEMENTSPROJECT NO. UN XXXX

TABLE OF CONTENTS

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Table of Contents TC-1

DIVISION 1 GENERAL REQUIREMENTS

Section 01106 Construction, Coordination and Sequencing01200 Project Meetings01300 Submittals01315 CPM Schedules and Reports01400 Quality Control01510 Temporary Utilities01600 Materials and Equipment01650 Start-Up01710 Cleaning Up01740 Warranties and Bonds01800 Temporary Facilities and Environmental Protection

DIVISION 2 GEOTECHNICAL (NOT USED)

DIVISION 3 STRUCTURAL

Section 03200 Concrete Reinforcement*03300 Cast-In-Place Concrete Structures *03310 Portland Cement Concrete *03310 Amendment – Submittals, Concrete Mix, and Inspection and

Testing of Concrete Work03600 Non-Shrink Grouts and Mortars *03600 Amendment – Swept in Grout for Clarifier Bottom

DIVISION 4 MASONRY (NOT USED)

DIVISION 5 METALS

Section 05500 Miscellaneous Metals *

DIVISION 6 WOOD AND PLASTICS (NOT USED)

DIVISION 7 THERMAL AND MOISTURE (NOT USED)

DIVISION 8 DOORS AND WINDOWS (NOT USED)

DIVISION 9 FINISHES

Section 09960 High-Performance Coatings


MWRF FINAL CLARIFIER IMPROVEMENTSPROJECT NO. UN XXXX

TABLE OF CONTENTS

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DIVISION 10 SPECIALTIES (NOT USED)

DIVISION 11 EQUIPMENT

Section 11225 Final Clarifiers

DIVISION 12 SPECIAL FURNISHINGS (NOT USED)

DIVISION 13 SPECIAL CONSTRUCTION (NOT USED)

DIVISION 14 CONVEYING SYSTEMS (NOT USED)

DIVISION 15 MECHANICAL (NOT USED)

DIVISION 16 ELECTRICAL

Section 16010 Electrical General Provisions16060 Grounding and Bonding16120 Wire, Splices and Terminations (600V or less)16130 Raceways16131 Boxes and Cabinets16140 Wiring Devices16190 Fire Spread Prevention16410 Disconnect Switches16511 Lighting Fixtures16960 Electrical Field Acceptance Tests

DIVISION 17 INSTRUMENTATION AND CONTROLS

Section *17000 General Instrumentation and Control*17441 Control System Hardware

* - Refer to County Standard Specifications

MWRF Final Clarifier Improvements Construction, Coordination, and SequencingCharles County, MD

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SECTION 01106

CONSTRUCTION, COORDINATION, AND SEQUENCING

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 General Requirements 01106-11.02 Facility Shutdowns 01106-11.03 Coordination 01106-3

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)



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SECTION 01106

CONSTRUCTION, COORDINATION AND SEQUENCING

PART 1 - GENERAL

1.01 GENERAL REQUIREMENTS

A. Keep of interferences with the operations of the existing facilities to a minimum.

B. All operations of valves and gates required to perform the work shall be done by theOwner. Inform the Owner or his designated agent in writing at least 72 hours, orlonger where specified, in advance of the need to operate valves or gates or otheractions which could affect facility operations.

C. Test all new facilities to achieve reliable, continuous facilities operation, all newfacilities shall be tested and in operating condition before final tie-ins are made whichconnect new facilities to existing facilities.

D. Provide detailed drawings to the Engineer that show all the temporary connections orfacilities.

E. When removing a facility from service, contractor shall allow the facility to drainnaturally or be pumped to its lowest level and pressure washed. All remaining fluidsare to be removed. Solids shall be disposed of off-site by the Contractor at hisexpense. Disposal of these solids must be in accordance with federal, state andlocal codes.

F. There may be other Contractors working on site at the same time. When theContractor becomes aware of circumstances whereby the Project shall adverselyaffect other projects on site or vice versa, immediately notify the Engineer andindicate what actions, are needed to coordinate the work of the various projects.

G. No extra payment shall be made for any labor, materials, tools, equipment ortemporary facilities required during the construction of facilities. All costs thereforeare considered to be included in the bid price of the Proposal.

1.02 FACILITY SHUTDOWNS

A. One Clarifier shall be removed from service and shutdown for the time necessary toperform the work, testing and commissioning.

B. Complete facility shutdown without supplemental services to maintain facilityoperation are not permitted. Individual facilities may be taken out of service forreplacement but must be complete and put back into service before another back-upfacility or other piece of equipment is removed from service. Temporary shutdownperiods (periods without supplemental services to maintain facility operation) to bedetermined by the Owner.



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C. Scheduled shut down, temporary shutdown and coordination of supplementalservices to maintain facility operation shall be mutually agreed upon by the Ownerand the Contractor, with the Engineer's approval.

D. In order to reduce each shutdown period to a minimum, the Contractor shall, prior toeach shutdown request, expedite completion of the work to the fullest extent.Complete all necessary preparatory work including testing and shall have adequatepersonnel available to keep each shutdown period to a minimum. All equipment andmaterials required to complete the work during a shutdown period shall be on the jobsite before the shutdown is commenced.

E. Carefully coordinate all work and schedules and shall provide the Owner andEngineer with 21 calendar days minimum written notice prior to each shutdownperiod, unless otherwise approved by the Owner.

F. Prior to each shutdown period, submit to the Engineer and Owner in writing, detaileddescriptions and schedules of the proposed construction procedures during theshutdown period. Information submitted to the Engineer shall include a completeinventory of materials and equipment needed to perform the work. No shutdown of afacility or operation will be permitted until the Engineer has reviewed and approved,in writing, the proposed construction plans and procedures.

G. If, during any temporary shutdown periods, the work performed is not satisfactory, asplanned, or not completed with the maximum time allocated, the Owner may orderthe Contractor to place the facility or operation back in service and reschedule thework, or he may order the work required to place the facility or operation back inservice to be performed with other forces.

H. During scheduled shut downs the Contractor shall be responsible for all damagesand costs thereof due to negligence and failure to maintain supplemental services.

1.03 COORDINATION

A. Contractor and Owner Personnel

1. The Contractor is responsible for the proper coordination of the work toprevent interference with the operation of the various facilities and to assurethat the Owner is made aware in advance of proposed construction activities.

2. There shall be no basis for claim for extra compensation or contract timeextension due to delay caused by the Contractor's failure to give propernotice for requested shutdowns or to advise the Owner of proposedconstruction activities that in the judgement of the Owner will interfere withoperation of the various facilities.

3. When an emergency condition arise at the various facilities, the Owner hasthe authority to require the Contractor and to suspend their operationstemporarily until conditions return to normal, without claim for extra cost orcontract time extension by the Contractor.



01106 - 3

4. Where the work of any subcontractor will be installed in close proximity towork of other subcontractors, or where there is evidence that the work of anysubcontractor will interfere with the work of other subcontractors, theContractor shall work out space allocations to make a satisfactoryadjustment. If so ordered by the Engineer, the Contractor shall preparecomposite working drawings and sections at a suitable scale, clearly showinghow work is to be installed in relation to the work of others. If the Contractorpermits any work to be installed before coordinating with the varioussubcontractors; or so as to cause interference with work of othersubcontractors, he shall make necessary changes in the work to correct thecondition without extra cost to the Owner.

5. The Contractor shall arrange that each subcontractor determines thelocation, size and arrangement of all chases and openings and shallestablish clearances in concealed spaces required for the proper installationof its work and shall see that such are provided.

PART 2 - PRODUCTS (Not Used)PART 3 - EXECUTION (Not Used)

END OF SECTION

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MWRF Final Clarifier Improvements Project MeetingsCharles County, MD

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SECTION 01200

PROJECT MEETINGS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Description 01200-11.02 Preconstruction Meeting 01200-11.03 Progress Meetings 01200-3




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01200 - 1

SECTION 01200

PROJECT MEETINGS

PART 1 - GENERAL

1.01 DESCRIPTION

A. The Engineer will schedule and administer a preconstruction meeting,periodic progress meetings, and specially called meetings throughout theprogress of the work.

1. Prepare agenda for meetings

2. Make physical arrangements for meetings

3. Preside at meetings

B. Representatives of Contractor, subcontractors and suppliers attendingmeetings shall be qualified and authorized to act on behalf of the entity eachrepresents.

C. The Contractor shall attend meetings to ascertain that work is expeditedconsistent with Contract Documents and construction schedules.

1.02 PRECONSTRUCTION MEETING

A. A preconstruction meeting will be scheduled before the Contractor startswork at the site.

B. Location: A site designated by the Engineer.

C. Attendance:

1. Owner's representative

2. Engineer and his professional consultants

3. Contractor's project manager and superintendent

4. Major subcontractors

5. Major suppliers

6. Utilities representative(s)

7. Others as appropriate

D. Suggested Agenda:



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1. Distribution and discussion of:

a. List of major subcontractors and suppliers

b. Projected construction schedules

2. Critical work sequencing.

3. Major equipment deliveries and priorities.

4. Detouring of traffic and street access.

5. Project coordination:

6. Designation and responsible personnel.

7. Procedures and processing of:

a. Field decisions

b. Proposal requests

c. Submittals

d. Change Orders

e. Applications for payment

8. Adequacy of distribution of Contract Documents.

9. Procedures for maintaining Record Documents.

10. Use of premises:

a. Office, work and storage areas.

b. Owners’ requirements.

11. Construction facilities, controls and construction aids.

12. Temporary utilities.

13. Housekeeping procedures.

14. Check of required Bond and Insurance certifications.

15. Liquidated damages.

16. Check of required Permits.

17. Laboratory testing of material requirements.



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18. Inventory of material stored on site.

19. Wage determination compliance and records, work hours.

20. MBE/WBE fair share objective, affirmative action,non-discrimination policies, if applicable.

21. Communication lines and contact persons, including address andtelephone number.

22. Manufacturers' operation and maintenance manuals, and operationand maintenance training.

23. Regulatory agency inspections.

24. Progress agency inspections.

25. Jobsite safety.

26. Work Hours

1.03 PROGRESS MEETINGS

A. Regular periodic meetings will be held every 30 days or less. The firstmeeting will be scheduled 30 days after the preconstruction meeting or 30days or less after the date of Notice to Proceed.

B. Meetings will be scheduled as required by progress of the work.

C. Location of the meetings: Contractor Field Office.D. Attendance:

1. Engineer and his professional consultants as needed.

2. Contractor.

3. Owner's representative.

4. Subcontractors as appropriate to the agenda.

5. Suppliers as appropriate to the agenda.

6. Others as appropriate.

E. Suggested Agenda:

1. Review and approval of minutes of previous meeting.

2. Review of work progress since previous meeting.



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3. Field observations, problems, conflicts.

4. Problems which impede Construction Schedule.

5. Review of off-site fabrication, delivery schedules.

6. Corrective measures and procedures to regain projected schedule.

7. Revisions to Construction Schedule.

8. Progress schedule during succeeding work period.

9. Coordination of schedules.

10. Review submittal schedules; expedite as required.

11. Maintenance of quality standards.

12. Pending changes and substitutions.

13. Review proposed changes for:

a. Effect on Construction Schedule and on completion date.

b. Effect on other contracts of the Project.

F. The Contractor shall attend progress meetings and shall study previousmeeting minutes and current agenda items, in order to be prepared todiscuss pertinent topics such as deliveries of materials and equipment,progress of the work, etc.

G. The Contractor shall provide a current shop drawing submittal log at eachprogress meeting in accordance with Section 01300.

H. The Contractor shall provide a current schedule at each progress meeting.



END OF SECTION



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MWRF Final Clarifier Improvements SubmittalsCharles County, MD

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SECTION 01300

SUBMITTALS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 General 01300-11.02 Types of Submittals 01300-11.03 Procedures for Submittals 01300-21.04 Contractor’s Responsibility 01300-21.05 Engineer’s Review of Submittals 01300-21.06 Shop Drawings 01300-31.07 Samples 01300-21.08 Manufacturer’s List 01300-31.09 Operating and Maintenance Instructional

Periods 01300-41.10 Operation and Maintenance Manuals for

Equipment and Products 01300-41.11 Manufacturer’s Certificates 01300-41.12 Mix Designs 01300-51.13 Design Calculations 01300-51.14 Mill Test Reports 01300-51.15 Record Drawings (General) 01300-61.16 Record Shop Drawings 01300-61.17 Record Drawings 01300-61.18 Requests for Information 01300-61.19 Professional Engineer Certification 01300-6


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SECTION 01300

SUBMITTALS

PART 1 - GENERAL

1.01 GENERAL

A. Refer to County Standards GP-5 for additional details on Submittals.

B. The Contractor shall submit to the Engineer for review and approval suchShop Drawings, test reports and product data on materials and equipment(hereinafter in this article called data), and material samples (hereinafter inthis article called samples) as are required for the proper control of work,including but not limited to those Shop Drawings product data and samplesfor materials and equipment specified elsewhere in the Specifications and inthe Contract Drawings.

C. Within thirty (30) days after the effective date of the Agreement, theContractor shall submit to the Engineer a complete list of preliminary data onitems for which Shop Drawings are to be submitted. Included in this list shallbe the names of all proposed manufacturers furnishing specified items.Review of this list by the Engineer shall in no way be expressed or implied torelieve the Contractor from submitting complete Shop Drawings andproviding materials, equipment, etc., fully in accordance with theSpecifications. The procedure is required in order to expedite final review ofShop Drawings.

D. The Contractor is to maintain an accurate updated submittal log and willbring this log to each scheduled progress meeting with the County,Developer and the Engineer. This log should include the following items:

1. Submittal-Description and Number assigned.2. Date to Engineer.3. Date returned to Contractor (from Engineer and or County).4. Status of Submittal (Approved, Approved as Noted, Revise and

Return, Rejected).5. Date of Resubmittal and Return (as applicable).6. Date material release (for fabrication).7. Projected date of fabrication.8. Projected date of delivery to site.9. Status of O&M manuals submittal.10. Specification Section.11. Drawings Sheet Number.

1.02 TYPES OF SUBMITTALS

A. Shop Drawings for manufactured or fabricated items, schedules, diagramsand like material prepared specially for this project.


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B. Product Data which include pre-printed material, manufacturer's descriptiveliterature, illustrations, catalog data, performance charts and the like intendedto identify a part of the work but not necessarily prepared exclusively for thisContract.

C. Samples which include physical examples of products, materials, assembliesor workmanship which are identical to a portion of the work and whichestablish standards for materials, workmanship, or appearance of thefinished work.

D. Administrative data to include information required to support theadministrative requirements of the contract as called for in the specifications.

E. Requests for information & potential change orders.

1.03 PROCEDURE FOR SUBMITTALS

Refer to County Standards GP-5 for details.

1.04 CONTRACTOR'S RESPONSIBILITY

A. It is the duty of the Contractor to check all drawings, data and samplesprepared by or for him before submitting them to the Engineer for review.Each and every copy of the Drawings and data shall bear the Contractor'sstamp showing that they have been checked. Shop Drawings submitted tothe Engineer without the Contractor's stamp will be returned to the Contractorfor conformance with this requirement. Shop Drawings shall indicate anydeviations in the submittal from requirements of the Contract Documents.

B. Refer to County Standards GP-5 for additional details.

1.05 ENGINEER'S REVIEW OF SUBMITTALS


1.06 SHOP DRAWINGS

Refer to County Standards GP-5 for shop drawing details.

1.07 SAMPLES

A. The Contractor shall furnish, for the approval of the Engineer, samplesrequired by the Contract Documents or requested by the Engineer. Samplesshall be delivered to the Engineer as specified or directed. The Contractorshall prepay all shipping charges on samples. Materials or equipment forwhich samples are required shall not be used in work until approved by theEngineer.



B. Samples shall be sufficient size and quantity to clearly illustrate:

1. Functional characteristics of the product, with integrally related partsand attachment devices.

2. Full range of color, texture and pattern.3. A minimum of three samples of each item shall be submitted.

C. Each sample shall have a label indicating:

1. Name of project2. Name of Contractor and Subcontractor3. Material or Equipment Represented4. Place of Origin5. Name of Producer and Brand (if any)4. Location of Project5. County PGM Number

(Samples of finished materials shall have additional marking that will identifythem under the finished schedules).

D. The Contractor shall prepare a transmittal letter in triplicate for eachshipment of samples containing the information required in SECTION 01300Paragraph 1.04. Contractor shall enclose a copy of this letter with theshipment and send a copy of this letter to the Engineer. Approval of a sampleshall be only for the characteristics or use named in such approval and shallnot be construed to change or modify any Contract requirements.

1.08 MANUFACTURER'S LIST

Within thirty (30) days after receipt of a Notice to Proceed, and before ordering anyequipment or materials, the Contractor shall submit to the Engineer for approval acomplete list of proposed manufacturers and fabricators for all materials andequipment to be used in this Contract. The purpose of this submittal is to allow theEngineer to predetermine the acceptability of proposed suppliers before issuance ofpurchase orders by the Contractor. Submission and acceptance of themanufacturers' list shall neither relieve the Contractor from submitting detailed ShopDrawings and product data for all materials and equipment nor shall it constitute prioracceptance of any specific item of equipment prior to submittal of Shop Drawings.After submission and acceptance of the manufacturers' list, the Contractor shall notdeviate from the named suppliers and manufacturers without written approval fromthe Engineer. Substitutions for named manufacturers/vendors for materials andequipment must be approved by the Owner. This approval does not constituteapproval or acceptance of the equipment that the Contractor submits.



1.09 OPERATING AND MAINTENANCE INSTRUCTIONAL PERIODS

Contractor shall furnish qualified personnel to instruct the County personnel in theproper operation and maintenance of equipment and systems provided in thisContract. Such instructional periods shall be for the duration of time specified inspecification sections.

1.10 OPERATION AND MAINTENANCE MANUALS FOR EQUIPMENT ANDPRODUCTS

A. General:

The Contractor shall furnish Operation and Maintenance Manuals forall products and equipment provided under this Contract that shallconform to County Standards GP-5.

1.11 MANUFACTURER'S CERTIFICATES

A. General:

1. As specified in the various sections of these Specifications, theContractor shall furnish the Engineer with manufacturer's certificatesstating that the equipment and products have been installed undereither the continuous or periodic supervision of the manufacturer'sfield representative, that they have been adjusted and initiallyoperated in the presence of the manufacturer's field representative,and that they are operating in accordance with the specifiedrequirements, to the manufacturer's satisfaction. A copy of allmanufacturers certificates shall be bound in each Operation andMaintenance Manual.

2. A certificate submitted for equipment, a product, or component of aproduct, shall indicate test results proving that the equipment,product, or component of a product, meet the requirements of theContract Documents. An affidavit consisting of a sworn statement byan official of the company manufacturing the equipment or productindicating that the information on the certificate is true and accurateshall accompany the certificate.

3. A statement originating from the Contractor, or any of hissubcontractors, suppliers, or any other agent which merely indicatesthat a particular item of equipment, product, or component of aproduct, meets the requirements of the Contract Documents shall notbe considered a certificate. Any such submittal made in this mannerwill not be approved and the corresponding equipment, product, orcomponent of a product, shall not be finally accepted.

B. Manufacturer's Representative:



1. The definition of "manufacturer's representative" shall be as follows:a representative from the manufacturer's plant, familiar with theactual problems of manufacturing, installing and operating theparticular equipment or product and with enough years of experiencein this field to determine the successful operation of the equipment orproduct. Sales representatives or agents of the manufacturers shallnot be acceptable.

2. As related to his obtaining the manufacturer's certificates, theContractor shall include in this contract price the cost of furnishingcompetent and experienced manufacturer's representatives whoshall represent the manufacturer on equipment and productsfurnished and installed under this Contract, to assist the Contractor toinstall, adjust, start up, and test the equipment and products inconformity with the Contract Documents. After the equipment andproducts have been operated through the trial period for each phaseof construction and before being put into permanent service anddemonstrating the equipment to the County, such manufacturer'srepresentatives shall make all adjustments and tests required toprovide that such equipment and products are in proper andsatisfactory operational condition. This shall be performed prior toand separate from operational demonstration and instruction.

C. Engineer's Responsibility

The Engineer will review with reasonable promptness, within 30 days, allsubmittals with respect to the Contract Documents and will indicate aqualified approval, an approval as noted or a revise and return notation. TheEngineer will return all submittals found incomplete without a review.

1.12 MIX DESIGNS

Mix designs shall be submitted for concrete, grout, and bituminous paving. Mixdesign shall indicate all materials used in the product and their respective relativequantities. In any one mix design all quantities shall be expressed either by weightor volume insofar as it is practical to do so. The Contractor's attention is directed toDIVISION 3 of these Specifications for proportioning and testing requirements ofconcrete.

1.13 DESIGN CALCULATIONS

Design calculations shall be presented in a neat, legible manner and shall bear thestamp and signature of a registered professional engineer, registered in the Statethat the Work in this Contract is being performed.

1.14 MILL TEST REPORTS

Mill test reports shall be submitted for structural steel and concrete reinforcementsteel. Reports shall be on the mill's standard report form.



1.15 RECORD DRAWINGS (GENERAL)


1.16 RECORD SHOP DRAWINGS


1.17 RECORD DRAWINGS


1.18 REQUESTS FOR INFORMATION

The Contractor shall submit to the Engineer all RFI’s sufficiently in advance ofconstruction requirements to provide no less than thirty (30) calendar days forreviewing and appropriate action from the time the Engineer receives them. Thecontractor shall provide sketches, drawing references and any other informationnecessary for the Engineer to provide a timely response.

1.19 PROFESSIONAL ENGINEER CERTIFICATION

A. Submittals that require a stamp and signature of a Maryland registeredprofessional engineer shall be accompanied with the following MarylandProfessional Certification.

“I hereby certify that these documents were prepared or approved by me,and that I am a duly licensed professional engineer under the laws of theState of Maryland,License No._____________________Expiration Date:__________________

END OF SECTION

MWRF Secondary Clarifier Improvements SubmittalsCharles County, MD

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MWRF Final Clarifier Improvements CPM Schedules and ReportsCharles County, MD

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SECTION 01315

CPM SCHEDULES AND REPORTS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 General Requirements 01315-11.02 Post Award Activities 01315-31.03 Construction Schedule 01315-41.04 Schedule of Values 01315-41.05 Construction Schedule Content 01315-51.06 Updating of Construction Schedule/

Progress Reports 01315-61.07 Recovery Schedule 01315-71.08 Schedule Revisions 01315-81.09 Float Time 01315-91.10 CPM Personnel 01315-9

PART 2 – PRODUCTS (Not Used)

PART 3 – EXECUTION (Not Used)


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SECTION 01315


PART 1 - GENERAL


A. The Work under this Contract shall be planned, scheduled, executed,reported and accomplished using the Critical Path Method (hereinafterreferred to as CPM), in calendar days, unless otherwise specifically providedin the Contract Documents.

B. The primary objectives of the CPM scheduling requirements are: (1) to insureadequate planning and execution of the Work by Contractor; (2) to assistOwner in evaluating progress of the Work; (3) to provide for optimumcoordination by the Contractor of his trades, Subcontracts and Suppliers, andof his work with the work or services provided by separate contractors; (4) topermit the timely prediction or detection of events or occurrences which mayaffect the timely prosecution of the Work; and (5) to provide a mechanism ortool for use by the Owner and Contractor in determining and monitoring anyactions of the Contractor which may be required in order to comply withrequirements of the Contract Documents relating to the completion of thevarious portions of the Work by the Milestone Dates specified in the ContractDocuments.

C. Contractor is responsible for determining the sequence of activities, the timeestimates of the detailed construction activities and the means, methods,techniques and procedures to be employed. The Construction Scheduleshall represent the Contractor's best judgment of how he will prosecute theWork in compliance with the Contract requirements. Contractor shall ensurethat the Construction Schedule is current and accurate and is properly andtimely monitored, updated and revised as Project conditions and the ContractDocuments may require.

D. Contractor shall consult with his principal Subcontractors and Suppliersrelating to the preparation of his construction plan and ConstructionSchedule. Principal Subcontractors shall receive copies of those portions ofContractor's Construction Schedule which relates to their work and shall becontinually advised of any updates or revisions to the Construction Scheduleas the Work progresses. When Contractor submits his ConstructionSchedule or makes any proposed updates or revisions to such Schedule, itwill be assumed by Owner that the Contractor has consulted with and hasconcurrence of his principal Subcontractors and Suppliers. Contractor shallbe solely responsible for ensuring that all Subcontractors and Supplierscomply with the requirements of the Construction Schedule for their portionsof the Work.

E. Contractor will provide the basic data relating to activities, durations andsequences as part of the Construction Schedule. This data shall reflect theContractor's actual construction plan for the Project, and shall fully complywith all requirements of the Contract Documents.



F. When there are separate contractors working concurrently on the Projectwhose work must interface or be coordinated with the Work of Contractor,Contractor shall coordinate his activities of the separate contractors andshall, prior to the submission of his Construction Schedule, obtain writtenapproval of his Construction Schedule by the separate contractors. IfContractor is unable to obtain such written approval by the separatecontractors after his best efforts to do so, or if a conflict occurs that cannot beresolved by mutual agreement between Contractor and any separatecontractor, the Owner shall make a determination of the schedule which willbe binding upon Contractor and the separate contractors.

G. It is understood and agreed that the Construction Schedule is to representContractor's best plan and estimate for the work; however, Contractoracknowledges that the Construction Schedule may have to be revised fromtime-to-time as progress proceeds. Contractor further acknowledges andagrees that the Owner does not guarantee that: (1) Contractor can start workactivities on the "early start" or "late start" dates or complete work activitieson the "early finish" or "late finish" dates shown in the schedule, or as samemay be updated or revised; (2) Contractor can proceed at all times in thesequence established by the utilization of only the resources and manpowerhe initially plans for the performance of the Work; (3) Contractor'sConstruction Schedule will not have to be modified in order to obtain theagreement of any separate contractors to the schedule; or (4) Contractor'sConstruction Schedule will not have to be modified or changed by directionof the Construction Manager. Any changes, modifications or adjustmentsmade by the Contractor to the Construction Schedule shall be in fullcompliance with all requirements of the Contract Documents.

H. The Contractor acknowledges and agrees that his Construction Schedulemust be flexible in order to accommodate and allow for his coordination withthe operations of the Owner and the work of separate contractors relating tothe Project. The Owner will review the Contractor's Construction Schedulefor compatibility with Owner operations and the work of separate contractors.Contractor agrees to hold meetings with the Owner and separate contractorsto resolve any conflicts between Contractor's Construction Schedule and theoperations of the Owner or work of separate contractors. Contractor agreesto fully cooperate with Owner and separate contractors to resolve suchconflicts and to revise his Construction Schedule as reasonably required.

I. In order to maintain the orderly progress of the work performed on theProject, the Owner shall have the right to determine, in his sole discretion,the priority between the Work performed by Contractor and the work of anyseparate contractors or Owner's operations; this decision shall be final andbinding upon Contractor and shall not be a cause for extra compensation oran extension of time, except where an extension of time is granted becauseof a delay for which Contractor is otherwise entitled to an extension under theContract Documents.

J. If Contractor's Construction Schedule indicates that Owner or a separatecontractor is to complete an activity or perform certain preceding work by aparticular date, or within a certain duration, Owner, or any separatecontractor shall not be bound to said date or duration unless Owner



expressly and specifically agrees in writing to same. The review and approvalor acceptance by Owner of the Construction Schedule or any other scheduleor plan of construction of Contractor, does not constitute an agreement byOwner of any start or finish date in the schedule or specific durations orsequences for activities of the Owner or any separate contractor; provided,however, that nothing herein shall be construed as modifying or changing, orexcusing the performance of Contractor of required portions of the Work bythe Milestone Dates as set forth in the Contract Documents.

K. The Milestone Dates set forth in the Contract Documents represent only themajor items of Work and may include interface dates with the operations ofthe Owner, the work of separate contractors or others. Milestone Dates areContract requirements and are of the essence to this Contract and to thecoordination of the Work by Contractor. Milestone Dates represent the latestallowable start or completion time for those portions of the Work to whicheach Milestone Dates relates. The Milestone Dates are not intended to be acomplete listing of all Work under this Contract or of all interfaces with workperformed by other separate contractors, the Owner or others. Contractorshall determine the time requirements for all such interfaces and shall beresponsible for planning, scheduling and coordinating the work in order tocomplete in accordance with those requirements.

L. Approval or acceptance by the Owner of the Contractor's ConstructionSchedule, or any revisions or updates thereto, is advisory only and shall notrelieve the Contractor of the responsibility for accomplishing each portion ofthe Work within each and every applicable Specific Date. Omissions anderrors in the approved or accepted Construction Schedule, or any revisionsor updates shall not excuse performance which is not in compliance with theContract.

M. Should Contractor intend or plan to complete the Work, or any portionthereof, earlier than any applicable Specific Date or Contract Time,Contractor shall give timely and reasonable notice of this fact to the Owner.

N. Unless otherwise specifically provided in the Contract Documents, Contractoracknowledges that Owner has contemplated in planning and initialscheduling of the projects, that the work will be performed on a 5-day workweek basis, utilizing a single 8-hour shift per day.

1.02 POST AWARD ACTIVITIES

A. Orientation Session: Contractor shall, upon notification from the Owner,attend an orientation session relating to the Schedules and Reportsrequirements for this Project. This orientation meeting is designed to assistthe Contractor in planning his work and in developing his ConstructionSchedule. This session will normally be held within fifteen (15) days after thedate of the Notice to Proceed. Contractor shall arrange for his projectmanager and Superintendent, major Subcontractors and Suppliers, and anyscheduling consultant that he may employ, to attend the orientation session.

B. The Owner will review: the objectives of the Schedules and Reportsrequirements; the procedure and requirements for the preparation of theConstruction Schedule and Schedule of Values by Contractor; and, how the



requirements of the Contract Documents will be monitored and enforced.Long-lead items and time requirements for work by Subcontractors will beidentified.

1.03 CONSTRUCTION SCHEDULE

A. Within seven (7) days of the orientation session, (even though Contractormay not have completed Subcontractor negotiations and executedsubcontractors) the Contractor shall complete a time-scaled network graphic.The Construction Schedule shall represent the Contractor's best judgementand intended plan for completion of the Work in compliance with MilestoneDates in the Contract Documents and the Contract Time. The ConstructionSchedule shall take into account all foreseeable activities to beaccomplished by any separate contractors, and interface dates with utilityowners, the Owner's operations and others. The Construction Scheduleshall anticipate all necessary manpower and resources to accomplish theactivities within the durations set forth in the Construction Schedule.

B. Owner shall have the right to require the Contractor to modify any Contractordata or any portion of the Contractor's Construction Schedule, Schedule ofValues or Recovery Schedule, as herein required, with Contractor bearingthe expense thereof, which the Engineer reasonably determines to be: (1)impracticable; (2) based upon erroneous calculations or estimates; (3)unreasonable; (4) required in order to ensure coordination by Contractor ofthe work of his Subcontractors and with the work or services being providedby any separate contractors; (5) necessary to avoid undue interference withthe Owner's operations or those of any utility owners or adjoining propertyowners; (6) necessary to ensure completion of the Work by the MilestoneDates set forth in the Contract Documents or (7) not in accordance with theContractor's actual operations.

1.04 SCHEDULE OF VALUES

A. Within ten (10) days after completion of the Construction Schedule, theContractor shall submit to the Owner a Schedule of Values for review,allocating a dollar value for the activities on the Construction Schedule. Thedollar value for the activity shall be the cost of the work of the activityincluding labor, materials, and pro rata contribution of General Conditionsrequirements, overhead and profit. The sum of all activity costs shall equalthe total Contract Sum. The Contractor shall revise the Schedule of Valuesas necessary to gain the approval of the Owner.

B. The activity cost for the Schedule of Values shall be coded with a cost codecorresponding to the trade, Subcontractor or Supplier performing the work sothat subtotals for each division of the Work can be prepared.

C. The Schedule of Values shall, in the best judgment of the Contractor,represent a fair, reasonable and equitable dollar (cost) allocation for eachactivity on the Construction Schedule.



1.05 CONSTRUCTION SCHEDULE CONTENT

A. The Construction Schedule shall consist of a time-scaled, detailed networkgraphic representation of all activities which are part of the Contractor'sconstruction plan and an accompanying computerized mathematical analysisof these activities. The graphic network shall include, but not be limited to,the following information:

1. Project PGM No. and Name;

2. Activities of completed work ready for use by next trade, Owner, etc;

3. Activities relating to different areas of responsibility, such assubcontracted work which is distinctly separate from that being doneby the Contractor directly;

4. Different categories of work as distinguished by craft or crewrequirements;

5. Different categories of work as distinguished by equipmentrequirements;

6. Different categories of work as distinguished by materials;7. Distinct and identifiable subdivisions of work such as structural slabs,

beams, columns;

8. Location of work within the Project that necessitates different times orcrews to perform;

9. Outage schedules for existing utility services that will be interruptedduring the performance of the Work;

10. Acquisition and installation of equipment and materials, suppliesand/or installed by Owner or separate contractors;

11. Material to be stored on site; and

12. Milestone Dates.

B. For all major equipment and materials to be fabricated or supplied for theProject, the Construction Schedule shall show a sequence of activitiesincluding:

1. Preparation of Shop Drawings and sample submissions;

2. A reasonable time for review of Shop Drawings and samples or suchtimes as specified in the Contract Documents;

3. Shop fabrication, delivery, and storage;

4. Erection or installation; and



5. Testing of equipment and materials.

C. The Construction Schedule shall include late completion dates for the Workthat are not later than the required Milestone Dates. The time-scaled graphicnetwork shall be drawn based upon the early start dates of activities shownon the graphic.

D. All activity durations shall be given in calendar days.

1.06 UPDATING OF CONSTRUCTION SCHEDULE/PROGRESS REPORTS

A. On or about the dates specified, Contractor shall arrange for his projectmanager and Superintendent to meet at the Project Site with the Owner toreview Contractor's report of actual progress prepared by Contractor. Saidreport shall set forth up-to-date and accurate progress data, shall be basedupon Contractor's best judgment and shall be prepared by Contractor inconsultation with all principal Subcontractors and Suppliers.

B. The progress report of Contractor shall show the activities or portions ofactivities, completed during the reporting period, the actual start and finishdates for these activities, remaining durations and/or estimated completiondates for activities currently in progress.

C. Contractor shall submit a narrative report with the updated progress analysiswhich shall include, but not be limited to, a description of problem areas,current and anticipated delaying factors and their impact, explanations ofcorrective actions taken or planned, any newly planned activities or changesin sequence, and proposed logic for a Recovery Schedule, if required, asfurther described herein. The report shall also include:

1. A narrative describing actual work accomplished during the reportingperiod;

2. A list of major construction equipment used on the Work during thereporting period and any construction equipment idle during thereporting period;

3. The total number of men by craft actually engaged in the Work duringthe reporting period, with such total stated separately as to office,supervisory, and field personnel;

4. A manpower and equipment forecast for the succeeding thirty (30)days, stating the total number of men by craft, and separately statingsuch total as to office, supervisory and field personnel;

5. A list of Contractor-supplied materials and equipment, indicatingcurrent availability and anticipated jobsite delivery dates; and

6. Changes or additions to Contractor's supervisory personnel since thepreceding progress report.

D. The Contractor will provide initial computer reports and monthly reportsthereafter, in accordance with the following:



1. Schedule Reports: Initial and subsequent Schedule Reports willcontain the following minimum information for each activity:

a. Activity number, description and estimated duration in days;b. Early and late finish dates;c. Percentage of each activity complete as of each report;d. Remaining float/days behind schedule;e. Responsibility for activity. Actual start and finish dates shall

be indicated for each activity, as appropriated. Dummies andcompleted activities will be omitted from remaining Float andLate Start Sorts.

2. Cost Reports: Initial and subsequent Cost Reports will include thefollowing information on each activity, sorted by trade activity:

a. Activity number and description;b. Percentage of value of Work in place against total value;c. Total cost of each activity;d. Value of Work in place since last report;e. Value of Work in place to date; andf. Value of uncompleted Work.

3. As part of the updating process, the Contractor will calculate, thevalue of work done for each activity based on percentage completefor each activity less the amount previously paid for past percentagescompleted. Summation of all values of each activity less theappropriate percent of retainage shall be the amount payable to theContractor, provided that Contractor has complied with allrequirements of the Contract Documents.

E. Contractor shall be solely responsible for expediting the delivery of allmaterials and equipment to be furnished by him so that the progress ofconstruction shall be maintained according to the currently approvedConstruction Schedule for the Work. Contractor shall notify the Owner inwriting, and in a timely and reasonable manner, whenever Contractordetermines or anticipates that the delivery date of any material or equipmentto be furnished by Contractor will be later than the delivery date indicated bythe Construction Schedule, or required consistent with the completionrequirements of this Contract, subject to updates as herein provided.

F. Contractor shall ensure that the critical path runs through on-site activitiesand that off-site activities do not control the critical path of the ConstructionSchedule.

1.07 RECOVERY SCHEDULE

A. Should the updated Construction Schedule show at any time that theContractor is fourteen (14) or more days behind schedule for any SpecificDate, the Contractor shall prepare a Recovery Schedule explaining anddisplaying how Contractor intends to reschedule his Work in order to regaincompliance with the Construction Schedule.



B. If the Contractor believes that all of the time can be recovered during thesubsequent pay period the Contractor will be permitted to prepare aRecovery Schedule as set forth below. However, if the Contractor believes itwill take more than thirty (30) days to recover all of the lost time, he shallprepare and submit a revision to the Construction Schedule.

1. The Contractor shall prepare and submit to the ConstructionManager a one-month maximum duration Recovery Schedule,incorporating best available information from Subcontractors andothers which will permit return to Construction Schedule at theearliest possible time. The Contractor shall prepare a RecoverySchedule to same level of detail as the Construction Schedule for amaximum duration of one month. This Recovery Schedule shall beprepared in coordination with other separate contractors on theProject;

2. Within two (2) days after submission of Recovery Schedule, theContractor shall participate in a conference with the Owner to reviewand evaluate the Recovery Schedule. Within two (2) days ofconference, the Contractor shall submit the revisions necessitated bythe review for review and approval. The Contractor shall use theapproved Recovery Schedule as his plan for returning to theConstruction Schedule.

3. Contractor shall confer continuously with the Owner to assess theeffectiveness of the Recovery Schedule. As a result of thisconference:

a. If the Contractor is still behind schedule, the Contractor shallprepare a Schedule Revision and comply with all of therequirements of a Schedule Revision as stated herein andthe other requirements of the Contract Documents; provided,however, that nothing herein shall limit in any way the rightsand remedies of the Owner and as provided elsewhere in theContract Documents.

b. If the Contractor has successfully complied with provisions ofthe Recovery Schedule, the Contractor shall return to the useof the approved Construction Schedule.

1.08 SCHEDULE REVISIONS

A. Should Contractor desire to or otherwise be required under the ContractDocuments to make modification or changes in his method of operation, hissequence of Work or the durations of the activities in his ConstructionSchedule, he shall do so in accordance with the requirements of the ContractDocuments. Revisions to the approved Construction Schedule must beapproved in writing by the Owner.



1.09 FLOAT TIME

A. Float or slack time associated with one chain of activities is defined asamount of time between earliest start date and latest start date or betweenearliest finish date and latest finish date for such activities, as calculated aspart of the Construction Schedule. Float or slack time shown on theConstruction Schedule is not for exclusive use or benefit of either the Owneror the Contractor. Contractor specifically agrees that float time may be usedby the Owner in conjunction with their review activities or to resolve for anymodification of the Milestone Dates or an extension of the Contract Time, ora claim for additional compensation as a result of any Project problem,Change Order or delay which only results in the loss of available positivefloat on the Construction Schedule.

B. Float time shown on the Construction Schedule shall not be used arbitrarilyby Contractor in a manner which unnecessarily delays separate contractorsfrom proceeding with their work or in a way which is detrimental to theinterests of the Owner.

1.10 CPM PERSONNEL

Contractor shall maintain a competent staff of sufficient size who are knowledgeablein the use, application and implementation of CPM as required by the ContractDocuments. It shall be the responsibility of the Contractor to prepare inputinformation for the Construction Schedule, monitor progress, provide input forupdating and revising logic diagrams when necessary and otherwise assist theContractor in fulfilling his obligations hereunder.



END OF SECTION

MWRF Final Clarifier Improvements Quality ControlCharles County. MD


SECTION 01400

QUALITY CONTROL

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Codes, Rules, Permits and Fees 01400-11.02 Materials and Workmanship 01400-21.03 Standards 01400-21.04 Verification of Dimensions 01400-41.05 Tests of Materials and Equipment 01400-41.06 County Standards 01400-5





SECTION 01400

QUALITY CONTROL

PART 1 - GENERAL

1.01 CODES, RULES, PERMITS AND FEES

A. General:

1. The Contractor shall comply with the County Building Codes as wellas the requirements of all permits obtained by the Owner or theContractor.

2. The Contractor shall give all necessary notices, obtain all permits(except as otherwise noted herein) and pay all governmental taxes,fees, and other costs in connection with the work, file all necessaryplans, prepare all documents and obtain all necessary approvals ofall government departments having jurisdiction, obtain all requiredCertificates of Inspection and Approval for the work and deliver sameto the Engineer, except as otherwise noted herein.

B. Included Items:

1. The Contractor shall include in his work, all labor, materials, services,apparatus, and drawings required to comply with all applicable laws,ordinances, rules and regulations, whether or not shown on theDrawings or specified.

C. Compliance:

1. All materials furnished and all work installed shall comply with therules and regulations of the National Fire Protection Association, withall requirements of local utility companies, with the recommendationsof the fire insurance rating organization having jurisdiction, and withthe requirements of all governmental departments having jurisdiction.

2. The Contractor shall arrange for inspection and approval by theElectrical Inspectors appointed by The County and shall pay all costsof these services.

D. Permits to be obtained by Contractor:

Contractor shall determine all required permits for the completion of the workdescribed under this contract and obtain same prior to the start ofconstruction. Permits required by the Contractor include, but are not limitedto the following:

a. Zoning Certificate for field office(s)



b. Electrical permit

1.02 MATERIALS AND WORKMANSHIP

A. All materials and equipment required for the work shall be new, unlessotherwise specified, and of the best quality and especially adapted to theservices required.

B. The Contractor shall furnish a superintendent who shall be constantly incharge of the installation of the work, together with all skilled workmen andlabor required to unload, transfer, erect, connect up, adjust, start, operate,and test each system.

C. The Contractor shall locate and install all equipment which must be serviced,operated, or maintained in fully accessible positions. Such equipment shallinclude, but not be limited to, valves, pumps, blowers, traps, unions,cleanouts, dampers, drain points, thermometers, pressure gages, andcontrols. Minor deviations from the Drawings may be made to allow for betteraccessibility, but changes of significant magnitude or changes involving extracost shall not be made without approval of the Engineer.

D. In as much as the Drawings are generally diagrammatic, the Drawings do notindicate all supports, hangers, fittings or offsets for piping, conduits, and ductwork, or all valves, traps, access panels, or other specialties which theContractor shall provide. All piping, conduit and duct work exposed to viewshall be run parallel with the lines of the building and as close to walls,columns, and ceilings as may be practical and consistent with proper gradeand the maintenance of proper clearances for access to all parts requiringservicing. No piping, conduit, or duct work shall cross below the head of anywindow or door.

1.03 STANDARDS

A. Any reference to standards in the Contract Documents shall always imply thelatest issue in effect including all amendments and errata at the time bids aretaken, of said standards unless otherwise stated.

B. Abbreviations for various organizations which may be used in theseSpecifications are as follows:

Abbreviation Organization

AA - Aluminum AssociationAASHTO - American Association of State Highway and Transportation OfficialsACI - American Concrete InstituteACS - American Chemical SocietyAFBMA - Anti-Friction Bearing Manufacturers AssociationAGA - American Gas AssociationAGMA - American Gear Manufacturers AssociationDGA - American Hot Dip Galvanizers Association




AICHE - American Institute of Chemical EngineersAISC - American Institute of Steel ConstructionAASHO - The American Association of State Highway OfficialsABPA - Acoustical and Board Products AssociationAI - The Asphalt InstituteAIEE - American Institute of Electrical Engineers (Now IEEE)AIMA - Acoustical and Insulating Materials AssociationAISI - American Iron and Steel InstituteAMCA - Air Moving and Conditioning AssociationANSI - American National Standards InstituteAPI - American Petroleum InstituteAPWA - American Public Works AssociationAREA - American Railway Engineering AssociationASA - American Standards Association (Now ANSI)ASCE - American Society of Civil EngineeringASHRAE - American Society of Heating, Refrigerating, and Air Conditioning EngineersASME - American Society of Mechanical EngineersASSCBC - American Standard Safety Code for Building ConstructionASTM - American Society of Testing and MaterialsAWPA - American Wood Preservers AssociationAWPB - American Wood Preservers BureauAWS - American Welding SocietyAWWA - American Water Works AssociationBIA - Brick Institute of AmericaCBRA - Copper and Brass Research AssociationCRSI - Concrete Reinforcing Steel InstituteCS - Commercial Standard (U.S. Department of Commerce)DIPRA - Ductile Iron Pipe Research AssociationE/A - Engineer and/or ArchitectEEI - Edison Electric InstituteEPA - U.S. Environmental Protection AgencyFM - Factory MutualFTI - Facing Tile InstituteFS - Federal SpecificationsGPM - Gallons Per MinuteHP - HorsepowerIEEE - Institute of Electrical and Electronic EngineersID - Inside DiameterIPCEA - Insulated Power Cable Engineers AssociationMBE - Minority Business EnterpriseMBMA - Metal Building Manufacturers AssociationMSS - Manufacturers Standardization Society of the Valve and Fittings IndustryNAAMM - National Association of Architectural Metal ManufacturersNBFU - National Bureau of Fire UnderwritersNBS - National Bureau of StandardsNCPI - National Clay Pipe InstituteNCMA - National Concrete Masonry AssociationNEC - National Electrical Code




NECA - National Electrical Contractors AssociationNEMA - National Electrical Manufacturers AssociationNFPA - National Fire Protection AssociationNPT - National Pipe ThreadsNSF - National Science FoundationOD - Outside DiameterOFCCP - Office of Federal Contracts Compliance ProgramsOSHA - U. S. Department of Labor, Occupational Safety and Health AdministrationPCA - Portland Cement AssociationPCI - Prestressed Concrete InstitutePS - United States Products StandardsPSIG - Pounds Per Square Inch GaugeRPM - Revolutions Per MinutesSAE - Society of Automotive EngineersSCPI - Structural Clay Products InstituteSDI - Steel Decks InstituteSJI - Steel Joists InstituteSPIB - Southern Pine Inspection BoardSMACNA - Sheet Metal and Air Conditioning National AssociationSMSA - Standard Metropolitan Statistical AreaSSPC - Steel Structures Painting CouncilSTA - Station (100 feet)TDH - Total Dynamic HeadTEMA - Tubular Exchanger Manufacturers AssociationUL - Underwriter's LaboratoriesUSASI or - United States of America Standards InstituteUSAS - (Now ANSI)USGS - United States Geological SurveyUSC&GS - United States Coast and Geodetic Survey

1.04 VERIFICATION OF DIMENSIONS

The Contractor shall be responsible for field verification of all dimensions of existingfacilities and other items which are shown on the Contract Drawings.

1.05 TESTS OF MATERIALS AND EQUIPMENT

All material before being incorporated in the work shall be subject to inspection,testing and approval of the Engineer and any work in which such materials are usedwithout prior test and approval shall be considered defective and unauthorized andwill not be paid for. The Contractor shall perform such tests as required by thespecifications in a timely fashion taking into account when the items will beincorporated in the work.



1.06 COUNTY STANDARDS

It shall be the Bidders Responsibility to obtain copies of all pertinent countypublications from Planning and Growth Management prior to Bidding the project.



END OF SECTION

MWRF Final Clarifier Improvements Temporary UtilitiesCharles County, MD


SECTION 01510

TEMPORARY UTILITIES

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Description 01510-11.02 Requirements of Regulatory Agencies 01510-1

PART 2 - PRODUCT

2.01 Materials 01510-12.02 Temporary Electricity and Lighting 01510-12.03 Temporary Sanitary Facilities 01510-12.04 Temporary Pumping and Site Drainage 01510-22.05 Security 01510-22.06 Dust and Mud Control 01510-22.07 Contractor’s Staging Area 01510-2

PART 3 - EXECUTION

3.01 General 01510-23.02 Removal 01510-2



SECTION 01510

TEMPORARY UTILITIES

PART 1 - GENERAL

1.01 DESCRIPTION

Furnish, install and maintain temporary utilities required for construction, remove oncompletion of Work.

1.02 REQUIREMENTS OF REGULATORY AGENCIES

A. Comply with National Electric Code.

B. Comply with Federal, State, and local codes and regulations and with utilitycompany requirements.

C. Comply with Health Department Regulations.

PART 2 - PRODUCT

2.01 MATERIALS

Materials may be new or used, but must be adequate in capacity for the requiredusage, must not create unsafe conditions, and must not violate requirements ofapplicable codes and standards.

2.02 TEMPORARY ELECTRICITY AND LIGHTING

A. Arrange with utility and Owner to provide service required for power andlighting.

B. Provide temporary lighting in all work areas sufficient to maintain a lightinglevel during working hours not less than the lighting level required byapplicable codes, OSHA Standards, and safety regulations.

2.03 TEMPORARY SANITARY FACILITIES

A. Approved sanitary conveniences for the use of laborers and others employedon the work, properly secluded from public observation shall be constructedand maintained by the Contractor, in such manner and at such points shallbe approved or directed and their use shall be strictly enforced. Thecollections in the same shall be disinfected and/or removed when and asrequired.

B. The Contractor shall provide and maintain, in a neat and sanitary condition,such accommodations for the use of his employees, as may be necessary tocomply with the requirements and regulations of the Department of Health orof other bodies or tribunals having jurisdiction thereof. He shall commit no



public nuisance. Use of Owner’s facilities is prohibited.

2.04 TEMPORARY PUMPING AND SITE DRAINAGE

Keep the site free from water at all times to permit continuous access and to preventdamage to the work.

2.05 SECURITY

Full time watchmen will not be specifically required as a part of the Contract, but theContractor shall provide inspection of work area daily and shall take whatevermeasures are necessary to protect the safety of the public, workmen, and materials,and provide for the security of the construction site, both day and night.

2.06 DUST AND MUD CONTROL

Take all necessary precautions to control dust and mud associated with the Work ofthis Contract, subject to the review of the County and Engineer. In dry weather, spraydusty areas daily with water or provide other approved means in order to controldust. Take necessary steps to prevent the tracking of mud onto adjacent streets andhighways.

2.07 CONTRACTOR'S STAGING AREA

A. Contractor’s Staging Area shall be designated by Charles County.

PART 3 - EXECUTION

3.01 GENERAL

A. Comply with the applicable requirements specified in Division 15 -Mechanicaland in Division 16 - Electrical.

B. Maintain and operate systems to assure continuous service.

C. Modify and extend systems as work progress requires.

3.02 REMOVAL

A. Completely remove temporary materials and equipment when their use is nolonger required.

B. Clean and repair damage caused by temporary installations or use oftemporary facilities.

C. Restore permanent facilities used for temporary services to specifiedcondition.

END OF SECTION

MWRF Final Clarifier Improvements Materials and EquipmentCharles County, MD


SECTION 01600

MATERIALS AND EQUIPMENT

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Additional Material and/or Equipment 01600-11.02 Singular Number 01600-11.03 Equipment Uniformity 01600-11.04 Storage and Protection of Materials and Equipment 01600-1





SECTION 01600


PART 1 - GENERAL

1.01 ADDITIONAL MATERIAL AND/OR EQUIPMENT

Because of the small scale of the Drawings, it is not possible to indicate all offsets, fittingand accessories which may be required. The contractor shall carefully investigate thestructural and finish conditions affecting his work and shall arrange his work accordingly,furnishing such fittings, valves, transitions, pull or junction boxes, and accessories as maybe required to meet such conditions, at no additional cost to the owner.

1.02 SINGULAR NUMBER

Where material, a device, or part of the equipment is referred to in the singular number, it isintended that such reference shall apply to as many items of material, devices or parts of theequipment as are required to complete the installation.

1.03 EQUIPMENT UNIFORMITY

All valves and other multiple-unit equipment shall be, to the greatest extent possible withinits category, the product of a single manufacturer.

1.04 STORAGE AND PROTECTION OF MATERIALS AND EQUIPMENT

A. All equipment and materials provided and work performed under this Contract shallbe protected from damage before and after installation. The contractor shall beresponsible for work, equipment and materials until finally accepted by the owner.

B. During construction, the open ends of work shall be effectively closed with temporarycaps or pneumatic plugs to prevent the entry of foreign material.

C. Where permanent equipment called for under this Contract is installed before theerection of adequate protective structures, the contractor without additionalcompensation therefor, shall provide approved effective and durable covers for fullyprotecting such equipment against damage from the elements or from any othercause.

D. Electrical equipment shall be carefully and effectively covered with waterproofmaterial and otherwise protected at all times from the elements or any other sourceof damage.

E. All existing and new structures, machinery, equipment, piping electric conduit, wiring,and accessories and appurtenances shall be adequately supported and safeguardedagainst all damage or injury during performance of work under this Contract. Thecontractor shall be responsible for all damage or injury resulting from his operationsand shall repair such damage immediately and to the satisfaction of the engineer.

F. The contractor shall store and protect products in accordance with the



manufacturer's recommendations, and the requirements specified herein.

G. contractor shall make all arrangements and provisions necessary for the storage ofmaterials and equipment. All excavated materials, construction equipment, andmaterials and equipment to be incorporated into the work shall be placed so as notto injure any part of the work or existing facilities, and so that free access can beachieved at all times to all parts of the work. Materials and equipment shall be keptneatly and compactly stored in locations that will cause a minimum of inconvenience.

H. Areas available on the job site for storage of materials and equipment shall be asshown, specified or designated and approved by the engineer. All materials andequipment must be consigned to the contractor directly. No delivery of materials andequipment will be accepted by the owner, and all expenses incurred by the owner inhandling materials or equipment which have been consigned or directed to theowner, will be charged to the contractor.

I. Materials and equipment which are to become the property of the owner shall bestored to facilitate their inspection and ensure preservation of the quality and fitnessof the work, including proper protection against damage by freezing and moisture.They shall be placed in inside storage areas, unless otherwise shown, specified orapproved by the engineer. Materials and equipment whether installed or being storedprior to installation shall be protected in full accordance with the manufacturer'srecommendations for safeguarding the items. Upon delivery of equipment thecontractor shall furnish the engineer a copy of the manufacturer's recommendationsfor the proper storage and protection of the equipment.

J. Lawns, grass plots or private property shall not be used for storage purposes withoutwritten permission of the property owner and approval of the engineer.

K. Contractor shall be fully responsible for loss of or damage to stored materials.

END OF SECTION

MWRF Final Clarifier Improvements Start-UpCharles County, MD


SECTION 01650

START-UP

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Description 01650-11.02 Submittals 01650-11.03 Definitions 01650-11.04 Demonstration of Systems 01650-11.05 Date - Time 01650-21.06 Attending Parties 01650-21.07 Certificate of Completed Demonstration 01650-2


PART 3 - EXECUTION

3.01 Preliminary Matters 01650-23.02 Start Up 01650-23.03 Process Demonstration and Testing 01650-33.04 Conditional Acceptance 01650-33.05 Certificate of Completed Demonstration 01650-3



SECTION 01650

START-UP

PART 1 - GENERAL

1.01 DESCRIPTION

The work outlined in this section shall provide a procedure for the initial start-up. It isthe intent of this procedure to demonstrate that the work, or individual facility asapplicable, is complete and ready for acceptance.

1.02 SUBMITTALS

A. Shop Drawings shall be submitted for all items specified herein inaccordance with Division 1 – General Requirements.

B. The Contractor shall submit for approval a detailed Schedule of OperationalCircumstances as specified herein, for the WORK prior to 50% payment.Payment may be withheld if schedule is not submitted.

C. The Schedule of Operational Circumstances and Certificate of CompletedDemonstration shall be provided in the Operation and Maintenance Manualin accordance with Division 1 – General Requirements.

1.03 DEFINITIONS

A. WORK: the WORK includes everything that the Contractor and his Sub-Contractors has installed.

B. Process: the Process is the complete system which includes all componentsthat are required to operate under normal and emergency operation of theWORK.

C. Initial Start-Up (Start-Up): During the start-up the Contractor shall test andmake adjustments to the WORK to ensure that it is operating as intendedprior to the Process Demonstration and Testing. This is to be performedbefore the Process Demonstration and Testing.

D. Process Demonstration and Testing (Demonstration): The ProcessDemonstration and Testing is to show that the WORK can operate properlyover the intended range of Operational Circumstances for a specifiedamount of time without any failures.

1.04 DEMONSTRATION OF SYSTEMS

A. Demonstrate the essential features of all systems as they apply to theWORK.

B. Each system shall be demonstrated to the County and Owner only aftersatisfactory completion of initial start-up.



1.05 DATE - TIME

Contractor shall schedule the Process Demonstration and Testing. Thedemonstration shall be held at a date and time to be agreed upon in writing by theOWNER or his representative.

1.06 ATTENDING PARTIES

The demonstration shall be held by the Contractor in the presence of the OWNER,and the manufacturer's representative (if applicable).

1.07 CERTIFICATE OF COMPLETED DEMONSTRATION

Submit five (5) copies of Certificate of Completed Demonstration memo signed bythe Contractor, Subcontractor and OWNER.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.01 PRELIMINARY MATTERS

A. Prior to system start-up, successfully complete all testing required of theindividual components of the WORK. Provide equipment manufacturerscertification that their components have been properly installed clean and areready for the start-up and Owners inspection. Piping shall be clear of debrisprior to system startup.

B. Demonstrate to the Engineer that all temporary jumpers and/or bypasseshave been removed, all piping, appurtenances, vaults etc are clear fromdebris prior to filling and that all of the components are operating under theircontrols as designated.

C. Coordinate start up activities with the Owner's operating personnel and withthe Engineer prior to commencing system start-up.

3.02 START UP

A. Confirm that all equipment is properly energized, that the valves are set totheir normal operating condition and that the flow path through the new workis clean and unobstructed.

B. Slowly fill each hydrostatic structure in the process flow stream with water.

C. Initiate start up in accordance with the operation and maintenance manual.

D. Observe the component operation and make adjustments as necessary tooptimize the performance of the WORK.



E. Coordinate with Owner for any adjustments desired or operational problemsrequiring debugging.

F. Make adjustments as necessary.

3.03 PROCESS DEMONSTRATION AND TESTING

A. After all WORK components have been constructed, field tested and started-up in accordance with the individual specifications and manufacturerrequirements perform the Process Demonstration and Testing in thepresence of the Engineer and the Owner.

B. The Process Testing will be conducted for a minimum of 5 to a maximum of14 consecutive days to complete all equipment certificates. The WORK mustoperate during the testing period in the manner intended. If the WORK doesnot operate successfully, the problems will be corrected and the ProcessTest will start over from day one.

C. During the Process Demonstration period, operate the WORK, instructdesignated operating personnel in the function and operation of the WORK,from the O&M Manuals and cause various operational circumstances tooccur. As a minimum, these circumstances will include average and peakdaily flows, random equipment failures, and overflows, surcharges andbypasses. The Contractor shall submit a detailed Schedule of OperationalCircumstances. Coordination of the various contract schedules will beaccomplished through the Engineer.

D. All materials and chemicals required for the testing shall be provided by theContractor. The Contractor shall replace the quantity of chemicals, fuel, etcused during the testing period.

E. Acceptability of the WORK's performance will be based on the WORKperforming as specified, under these actual and simulated operatingconditions. The intent of the Process Demonstration and Testing is for theContractor to demonstrate to the Owner and the Engineer that the Work willfunction as a complete and operable system under normal as well asemergency operating conditions and is ready for acceptance.

3.04 CONDITIONAL ACCEPTANCE

Upon successful completion of the start-up Demonstration and Testing, theContractor may request a letter of Conditional Acceptance for the segment of workinvolved.


Certificate of Completed Demonstration Memo is on the next page.



CERTIFICATE OF COMPLETED DEMONSTRATION MEMO

Note to Contractor: Do not submit this form at the time Operation and Maintenance Manualis submitted. Submit five copies of all information listed below for checking at least one weekbefore scheduled completion of Work. After information has been approved and inserted ineach brochure, give the Owner a demonstration of completed mechanical systems and havehim sign five copies of this form. Provide one signed copy for each brochure. After this hasbeen done, a written request for a final inspection of the system shall be made.

RE:(Name of Project)

(Division Number and Name)

This memo is for the information of all concerned that the Owner has been given aDemonstration of Completed System on the work covered under this Division. Thisdemonstration consisted of the system operation, a tour on which all major items ofequipment were pointed out, and the following items were given to the Owner:

(a) Owner's copy of Operation and Maintenance Manual containing approved submittalson all items, including the following: (To be inserted in the Operation andMaintenance Manual after the correct tab).

(1) Maintenance Information published by manufacturer on equipment items.

(2) Printed Warranties by manufacturers on equipment items.

(3) Performance verification information as recorded by the Contractor.

(4) Manufacturer's Certificate.

(5) Written operating instructions on any specialized items.

(6) Explanation of guarantees and warranties on the system.

(7) Approved shop drawings.

(b) Prints showing actual "As-Built" conditions.

(c) A demonstration of the System in Operation and of the maintenance procedureswhich will be required.

(Name of General Contractor)

By: _____________________________________________________________________



(Authorized Signature, Title & Date)

___________________________________________________________________(Name of Subcontractor)

By: _____________________________________________________________________


Operations and Maintenance Manual, Instruction Prints, Demonstration and Instruction inOperation Received:

________________________________(Name of Owner)

By:_______________________________________(Authorized Signature, Title & Date)

xc: Owner, Engineer, Contractor, Subcontractor, and General Contractor

END OF SECTION

MWRF Final Clarifier Improvements Cleaning UpCharles County, MD


SECTION 01710

CLEANING UP

PARAGRAPH INDEX

Page No.PART 1 - GENERAL

1.01 General 01710-1





SECTION 01710

CLEANING UP

PART 1 - GENERAL

1.01 GENERAL

A. At the start of the construction prior to any work, contractor shall provide photoand video documentation of the immediate site as well as the road conditions tothe site.

B. During the construction duration, the Work and the adjacent areas affectedthereby shall be kept clean and all rubbish, surplus materials, and unneededconstruction equipment shall be removed and all damage repaired.

C. Where material or debris has washed or flowed into or been placed in existingwatercourses, ditches, gutters, drains, pipes, structures, work done under thiscontract, or elsewhere during the course of the Contractor's operations, suchmaterial or debris shall be entirely removed and satisfactorily disposed during theprogress of the Work, and ditches, channels, drains, pipes, structures, and work,etc., shall, upon completion of the Work, be left in a clean and neat condition.

D. On or before the completion of the Work, the Contractor shall, unless otherwiseespecially directed or permitted in writing, tear down and remove all temporarybuildings and structures built by him; shall remove all temporary works, tools, andmachinery or other construction equipment furnished by him; shall remove,acceptably disinfect, and cover all organic matter and material containing organicmatter in, under, and around privies, and other buildings used by him; shallremove all rubbish from any grounds which he has occupied; and shall leave theroads and all parts of the premises and adjacent property affected by hisoperations in a neat and satisfactory condition.

E. The Contractor shall thoroughly clean all materials and equipment installed byhim and his sub-contractors, and on completion of the work shall deliver itundamaged and in fresh and new-appearing condition. All mechanicalequipment shall be left fully charged with lubricant and ready for operation.

F. The Contractor shall restore or replace, when and as directed, any propertydamaged by his work, equipment, or employees, to a condition at least equal tothat existing immediately prior to the beginning of operations. The restoration ofexisting property or structures shall be done as promptly as practicable as workprogresses and shall not be left until the end of the Contract period.





END OF SECTION

MWRF Final Clarifier Improvements Warranties and BondsCharles County, MD


SECTION 01740

WARRANTIES AND BONDS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Description 01740-11.02 Submittal Requirements 01740-11.03 Form of Submittals 01740-11.04 Warranty Submittals Requirements 01740-2




E:\Charles County\Clarifier\Specs\100% Final Clar\01740.doc August 201801740 -1

SECTION 01740


PART 1 - GENERAL

1.01 DESCRIPTION

A. Co-execute submittals when so specified.

B. Review submittals to verify compliance with Contract Documents.

C. Submit to the Engineer for review and transmittal to Owner.

1.02 SUBMITTAL REQUIREMENTS

A. Assemble warranties, bonds and service and maintenance contracts, executed byeach of the respective manufacturers, suppliers, and subcontractors.

B. Number of original signed copies required: Two each.

C. Table of Contents: Neatly typed, in orderly sequence. Provide complete informationfor each item.

1. Product or work item.

2. Firm, with name of principal, address and telephone number.

3. Scope.

4. Date of beginning of warranty, bond or service and maintenance contract.

5. Duration of warranty, bond or service maintenance contract.

6. Provide information for Owner's personnel:

a. Proper procedure in case of failure.b. Instances which might affect the validity of warranty or bond.

7. Contractor and Subcontractors name, street address and telephone numberof responsible principal.

1.03 FORM OF SUBMITTALS

A. Prepare in duplicate packets.

B. Format:

1. Size 8-1/2 inch x 11 inches, punch sheets for standard three post binder.


E:\Charles County\Clarifier\Specs\100% Final Clar\01740.doc August 201801740 -2

a. Fold larger sheets to fit into binders.

2. Cover: Identify each packet with typed or printed title "WARRANTIES ANDBONDS". List:

a. Title of Projectb. Name of Contractor

C. Binders: Commercial quality, three post binder, with durable and cleanable plasticcovers and maximum post width of two inches.

1.04 WARRANTY SUBMITTALS REQUIREMENTS

A. For all major pieces of equipment submit a warranty from the equipmentmanufacturer. The manufacturer's warranty period shall be concurrent with theContractor's for one (1) year, unless otherwise specified, commencing from the dateof Conditional Acceptance.

B. The Contractor shall be responsible for obtaining certificates for equipment warrantyfor all major equipment specified under all Divisions and which have at least a 1 hpmotor or which lists for more than $1,000. The Engineer and County reserves theright to request warranties for equipment not classified as major. The Contractorshall still warrant equipment not considered to be "major" in the Contractor's oneyear warranty period even though certificates of warranty may not be required.

C. In the event that the equipment manufacturer or supplier is unwilling to provide a oneyear warranty commencing from the date of Conditional Acceptance, the Contractorshall obtain from the manufacturer, a two (2) year warranty commencing at the timeof equipment delivery to the job site. This two year warranty from the manufacturershall not relieve the Contractor of the one year warranty starting from the date ofFinal Completion.



END OF SECTION

MWRF Final Clarifier Improvements Temporary Facilities and Environmental ProtectionCharles County, MD


SECTION 01800

TEMPORARY FACILITIES AND ENVIRONMENTAL PROTECTION

PARAGRAPH INDEX

Page No.

PART 1 – GENERAL

1.01 Description 01800-1

PART 2 – PRODUCTS (Not used)

PART 3 – EXECUTION

3.01 Measurement and Payment 01800-7



SECTION 01800


PART 1 - GENERAL

1.01 DESCRIPTION

This section includes requirements to the Contractor's responsibility forTemporary Facilities and Environmental Protection.

A. Temporary Facilities

1. General

a. Temporary facilities and protective devices include but arenot necessarily limited to the following items: temporarybarricades, fences, bridges, guards, temporary utilities,engineering office, steel plates over trenches, maintenanceof traffic and project identification signs.

b. All materials used in construction of the above mentioneditems of work shall be of such size shape and strength tobe suitable for the use intended.

c. The Contractor shall conduct construction operations insuch a manner as to cause as little inconvenience aspossible to the general public and the County and itsemployees. Wherever required, the Contractor shall erectand maintain signs, fences, barricades and pedestrianbridges and provide guards and flag persons for theprotection of the public.

d. The Contractor shall take positive measures to prevent atall times, entry to the site of the work and storage areas bychildren, animals and unauthorized adults.

e. The Engineer shall approve location of all temporaryfacilities before they are transported to the constructionsite.

B. Furnish and construct temporary fencing as required to fence offexcavation, storage and operating areas. All temporary fences erected bythe Contractor shall be substantially constructed, neat in appearance andshall be approved by the Engineer. Unless otherwise indicated, fencesshall be six feet high. The type of fence whether, fixed or movable, shallbe as directed by the Engineer.

1. Barricade or close all openings in roadways, floors, walls or otherparts of structures or walkways while the openings are not inregular use. Barricades shall be substantial in character, neat inappearance, and be of size and arrangement approved by theEngineer.



2. In areas where removal of existing sidewalk or shared-usepathway is necessary, construct bridges for pedestrians ofsuitable materials in accordance with local or State requirements,and provide handrails or sides tightly boarded in accordance withsaid requirements. Pedestrian bridges shall have a minimum widthof six feet or such greater minimum width as will accommodatethe normal traffic flow at the particular location.

C. Temporary Utilities

1. Where County waterlines exist in close proximity to the project,the County will furnish water required during the entireconstruction period for the project to the Contractor. TheContractor shall make the necessary arrangements for hook-up,shall provide all piping and appurtenances required and providetemporary pumps, tanks and compressors as necessary toproduce the required pressures. This is classified as a bottledwater facility per MDE, therefore; the metered water shall not beused for drinking water.

2. The Contractor shall make the necessary arrangements andprovide all temporary electric service and lighting required duringthe entire construction period. The metered costs of electricityused will be limited only to the contractor’s trailer.

Four weeks prior to placing the facility online for the County toreceive beneficial use of a facility, the Contractor shall request, inwriting, that the metered cost of the electricity for the specificfacility be borne by the County.

The electric service shall be of sufficient capacity andcharacteristics to provide the proper current for the various typesof construction tools, motors, welding machines, lights, heatingplant, pumps, and other work required. All necessary temporarywiring, panel boards, outlets, switches, lamps, fuses, controls andaccessories shall be provided by the Contractor.

3. Contractor shall provide and maintain an adequate number oftemporary toilets with proper enclosures as necessary for the useof workmen during construction. Toilets shall be located wheredirected by the Owner and kept clean and comply with all localand state requirements and sanitary regulations. Toilet facilitiesshall be the prefabricated chemical type unless otherwiseindicated.

4. The Contractor shall be responsible for provisions of temporaryheating, including all costs of equipment and installation (exceptfor permanent plant), fuel and attendance, whenever and for suchperiods as such heating may be required, either because ofgeneral weather conditions to prevent freezing, to provide suitable



working conditions, or to ensure progress of the operation withinthe established scheduled time for curing of concrete.

D. Project Sign

1. The Contractor shall furnish and erect identification signs for theproject in accordance with the Standard Detail for IdentificationSign. Number and spacing of signs shall be as directed by theEngineer. The sign shall be erected in place beforecommencement of work on the Project.

E. Maintenance of Traffic

1. The Contractor shall be responsible for maintaining a normalthrough traffic flow in accordance with the Maintenance of TrafficPlan provided in the Contract Documents. Any modifications tosaid plan shall be submitted to the Engineer for approval at thepreconstruction meeting. Maintenance of traffic shall be inaccordance with jurisdictional requirements and requirements setforth in permits acquired for this Contract and with the Manual onUniform Traffic Control Devices. Safety Measures shall be inaccordance with Maryland State Highway AdministrationSpecifications Article 10.07 and applicable jurisdictionalrequirements.

2. The Contractor shall be responsible for coordination of hisoperations with the appropriate jurisdictional agencies. In theabsence of jurisdictional requirements, roads shall be consideredsecondary unless otherwise shall govern:

a. General: Provide special personnel to whom no otherduties shall be assigned to direct traffic at all times atroadways that are blocked to any extent by constructionequipment or operations. These personnel shall wear redor orange safety garments and shall be equipped withsignal paddles. Provide red lights and reflectorized safetygarments during periods of darkness.

b. Primary Roads where Indicated: Roadway space shall notbe utilized for storage of earth and other materials.Excavations shall be closed at the end of each work dayby backfilling or by means of steel plates marked inadvance with warning signs or other accepted materials,and the work areas shall be left free from obstacles duringoff-work hours.

c. Secondary Roads: One-way traffic shall be maintainedduring working hours. Clean up area of the Work at theend of each work day so as to provide maximum use of theroadway during off-work hours.



3. The Contractor shall provide temporary facilities as required forpedestrian and vehicular access to properties adjacent to orcontiguous with the Project. Should it be necessary to temporarilyinterrupt access, the Contractor shall so notify the Engineer, andafter securing the Engineer’s approval, the Contractor shall notifyall affected parties of the time, extent and duration of theinterruption.

F. Environmental Protection

1. The Contractor shall be responsible for furnishing all necessaryitems for fulfilling the Work described herein for EnvironmentalProtection including prevention and control of erosion andsedimentation that results directly or indirectly from the Project.

2. Prevention of Water Pollution

a. The Contractor shall take all precautions in the conduct ofhis Operations as may be necessary to avoidcontaminating the water in adjacent watercourses or waterstorage areas including wells whether natural or man-made.

b. All earth work, moving of equipment, water control ofexcavations, and other operations likely to create silting,shall be conducted so as to minimize pollution ofwatercourses or water storage areas.

c. Water used during the Contract Work which has becomecontaminated with oil, bitumens, harmful or objectionablechemicals, sewage or other pollutants shall be disposed ofso as to avoid affecting all nearby waters and lands.Under no circumstances shall the Contractor dischargepollutants into any watercourse or water storage area.Water used in aggregate processing, concrete curing,foundation and concrete lift cleanup or any other wasteshall not be allowed to re-enter a stream. When water fromadjacent natural sources is used in the Contract Work,intake methods shall be such as to avoid contaminatingthe source of supply or becoming a source of erosion.

3. Noise and Air Pollution Control

a. The Contractor shall conduct his operations so as not toviolate any applicable ordinances, regulations, rules andlaws in effect in the area pertaining to noise and airpollution and shall be required to conform to all provisionsas set forth in the Rules and Regulations Governing theControl of Air Pollution in the State of Maryland, 10.03.35,and Rules and Regulations Governing the Control of AirPollution in Area IV, 10.03.39 and Pollution in Area IV,10.03.39 and subsequent amendments thereto, MarylandDepartment of Health and Mental Hygiene, Chapter 3, and



Rules and Regulations Governing the Control of NoisePollution in the State of Maryland, 10.03.45, Maryland SateDepartment of Health and Mental Hygiene. Contractorshall provide noise attenuation as necessary at noadditional cost to the contract.

4. Plant Pest Control

a. All soil moving or handling equipment that has operated inor will operate in regulated areas shall be subject to plantquarantine regulations. In general, these regulationsrequire the thorough cleaning of soil from equipmentbefore such equipment is moved from regulated areas toun-infested areas. Complete information may be obtainedfrom the regional office of the Plant Pest Control Division ofthe U.S. Department of Agriculture.

5. Preservation of Natural Resources

a. All construction operations, Contract work, clean-up andthe condition of the adjacent terrain upon completion of theWork shall fully comply with all applicable regulations andlaws concerning the preservation of natural resources.

6. Dust Control

a. Throughout the entire construction period, dust controlshall be maintained by use of water sprinklers or chemicaldust control binder as may be approved by the Engineer.

7. Erosion and Sediment Control

a. Land Disturbance is defined as any earth movement andland changes which may result in soil erosion from windand water and the movement of sediment into State watersor onto State lands, including but not limited to tilling,clearing, grading, excavating, stripping, filling and relatedactivities and the covering of land with an impermeablematerial.

b. All work shall comply with requirements and standards ofthe 1994 Maryland Standards and Specifications for SoilErosion and Sediment Control, as modified by theseSpecifications, with specific jurisdictional requirements,and with information shown on the Plans and SedimentControl Permit and shall consist of the application ofmeasures throughout the life of the Project to controlerosion and to minimize the siltation of rivers and adjacentlands and streams. Such measures shall include, but notbe limited to, the use of berms, dikes, sediment traps,gravel or crushed stone filters, mulch, grasses, slopedrains and other methods approved by the County.



Provide sediment control devices to contain surfacedrainage from within the construction site, borrow, wasteand storage areas where deemed necessary by theEngineer. Erosion and sediment control measures shall becoordinated with the construction of the permanentdrainage facilities wherever encountered.

c. All arrangements shall be secured by the Contractor inwriting and shall contain a clause to the effect thatrequirements and standards of restabilization andrestoration standards for the right-of-way. A copy of thefinal access agreement and a copy of any additionallyrequired State or County permits shall be sent to theEngineer, prior to the Contractor beginning work in anyareas outside of the right-of-way.

d. The Contractor shall notify the Charles County Planningand Growth Management, Development ServicesDepartment at 301-645-0700, at least 48 hours prior to anyland disturbance activities of the Project. The site, work,materials, plans, specifications and permits shall beavailable at all times during working hours for inspection bythe County Sediment Control Inspector.

e. Seed, sod, mulches, fertilizer, topsoil, soil conditioner andother materials for seeding and sodding shall be asspecified on the Contract Drawings. All other sedimentcontrol materials and devices shall be in accordance with1994 Maryland Standards and Specifications for SoilErosion and Sediment Control. Other materials asrequired shall be as approved by the Engineer.

f. Construction shall comply with requirements specifiedherein and indicated on the Plans. Violation of jurisdictionalcodes and rules and regulations will result in suspension ofthe Work. Suspension of Work will not be lifted until theContractor has received approval of his writtenreapplication for the revoked permit. Time extensionsrequested as a result of delays occasioned by suchsuspensions will not be granted. Field inspection in theCounty will be conducted by County Sediment ControlInspector.

g. Should conditions arise in the field, that render the Plansinadequate or inappropriate in this section, the Contractorshall immediately notify the Engineer.

8. Odor Control

The Contractor, as directed by the County shall provide temporaryodor control in the event that odor becomes an issue. TheContractor shall submit cost proposals for the engineer to review ifodor control is required.



PART 2 – PRODUCTS – Not used


3.01 MEASUREMENT AND PAYMENT

A. Providing for and complying with requirements set forth in this Section willnot be measured for payment but the cost thereof will be consideredincidental to the Contract.

END OF SECTION

MWRF Final Clarifier ImprovementsCharles County, MD

Amendment - Inspection and Testing of Concrete Work

E:\Charles County\Clarifier\Specs\100% Final Clar\03310 Submittals, Concrete Mix, and Inspection and Testing of Concrete Work.docxAugust 2018

03310-i

SECTION 03310

AMENDMENT- SUBMITTALS, CONCRETE MIX, INSPECTION AND TESTING OFCONCRETE WORK

(Amendment to the County Standard Specification Section 03310)

PARAGRAPH INDEX

Page No.

PART 1 – GENERAL

1.01 Summary 03310-11.02 Informational Submittals 03310-11.03 Action Submittals 03310-11.04 Quality Assurance 03310-11.05 Preconstruction Testing 03310-2

PART 2 – PRODUCTS

2.01 Concrete Mixtures, General 03310-22.02 Crystalline Waterproofing Admixture 03310-22.03 Waterstops 03310-2


3.01 Field Quality Control 03310-2




03310-ii





03310-1

PART 1 - GENERAL

1.01 SUMMARY

A. Section includes the inspection, laboratory testing and field testing of cast-in-placeconcrete, including formwork, reinforcement, concrete materials, mixture design,placement and finishes. Inspection and testing required under this section are inaddition to any inspections and testing the County Engineer may choose toconduct as described in Sections 03200, 03300 and 03600. Inspection and testingrequired under this section is a substitution for the inspections and testingdescribed in Section 03310.

1.02 INFORMATIONAL SUBMITTALS

A. Qualification Data: For testing agency.

1.03 ACTION SUBMITTALS

A. Construction Joint Layout: Indicate proposed construction joints required toconstruct the structure.

1. Location of construction joints is subject to approval of the Engineer.

B. Grout Demolition:

1. Keep daily records of existing grout thickness and volume demolished, aswell as daily photographs of grout demolition.

2. Submit daily records and a demolition plan drawing documenting existinggrout thickness to the Owner and Engineer.

1.04 QUALITY ASSURANCE

A. Testing Agency Qualifications: An independent agency, acceptable to authoritieshaving jurisdiction, qualified according to ASTM C 1077 and ASTM E 329 fortesting indicated.

1. Personnel conducting field tests shall be qualified as ACI Concrete FieldTesting Technician, Grade 1, according to ACI CP-1 or an equivalentcertification program.

2. Personnel performing laboratory tests shall be ACI-certified ConcreteStrength Testing Technician and Concrete Laboratory Testing Technician,Grade I. Testing agency laboratory supervisor shall be an ACI-certifiedConcrete Laboratory Testing Technician, Grade II.




03310-2

1.05 PRECONSTRUCTION TESTING

A. Preconstruction Testing Service: Engage a qualified testing agency to performpreconstruction testing on concrete mixtures.

PART 2 - PRODUCTS

2.01 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures for each type and strength of concrete, proportioned onthe basis of laboratory trial mixture or field test data, or both, according to ACI 301(ACI 301M).

1. Use a qualified independent testing agency for preparing and reportingproposed mixture designs based on laboratory trial mixtures.

B. Maximum water-cementitious ratio: 0.42

C. Limit water-soluble, chloride-ion content in hardened concrete to 0.10 percent byweight of cement.

D. Crystalline Waterproofing Admixture: Dosage rate as recommended by the man-ufacturer and approved by the Engineer.

2.02 CRYSTALLINE WATERPROOFING ADMIXTURE

A. Crystalline waterproofing admixture: AQUAFIN-IC ADMIX as manufactured byAquafin, Inc., XYPEX ADMIX C-500 as manufactured by Xypex ChemicalCorporation, Penetron Admix as manufactured by ICS Penetron International LTD.or equivalent product as approved by the Engineer.

2.03 WATERSTOPS

A. Swellable Type Waterstops: Manufactured rectangular or trapezoidal strip, butylrubber with sodium bentonite or other hydrophilic polymers, for adhesive bondingto concrete, 3/4 by 1 inch.

PART 3 - EXECUTION

3.01 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified testing and inspecting agency to perform testsand inspections and to submit reports.




03310-3

B. Inspections:

1. Steel reinforcement placement.2. Verification of use of required design mixture.3. Concrete placement, including conveying and depositing.4. Curing procedures and maintenance of curing temperature.5. Verification of concrete strength before removal of shores and forms from

beams and slabs.

C. Concrete Tests: Testing of composite samples of fresh concrete obtainedaccording to ASTM C 172/C 172M shall be performed according to the followingrequirements:

1. Testing Frequency: Obtain one composite sample for each day's pour ofeach concrete mixture up to 25 cu. yd., plus one set for each additional 50cu. yd. or fraction thereof.

a. When frequency of testing provides fewer than five compressive-strength tests for each concrete mixture, testing shall be conductedfrom at least five randomly selected batches or from each batch iffewer than five are used.

2. Slump: ASTM C 143/C 143M; one test at point of placement for eachcomposite sample, but not less than two tests for each day's pour of eachconcrete mixture. Perform additional tests when concrete consistencyappears to change.

3. Air Content: ASTM C 231/C 231M, pressure method, for normal-weightconcrete; one test for each composite sample, but not less than two testsfor each day's pour of each concrete mixture.

4. Concrete Temperature: ASTM C 1064/C 1064M; one test hourly when airtemperature is 40 deg F and below or 80 deg F and above, and one testfor each composite sample.

5. Compression Test Specimens: ASTM C 31/C 31M.

a. Cast and laboratory cure two sets of two standard cylinderspecimens for each composite sample.

b. Cast and field cure two sets of two standard cylinder specimens foreach composite sample.

6. Compressive-Strength Tests: ASTM C 39/C 39M; test one set of twolaboratory-cured specimens at 7 days and one set of two specimens at 28days.

a. Test one set of two field-cured specimens at 7 days and one set oftwo specimens at 28 days.

b. A compressive-strength test shall be the average compressivestrength from a set of two specimens obtained from samecomposite sample and tested at age indicated.




03310-4

7. When strength of field-cured cylinders is less than 85 percent of companionlaboratory-cured cylinders, Contractor shall evaluate operations andprovide corrective procedures for protecting and curing in-place concrete.

8. Strength of each concrete mixture will be satisfactory if every average ofany three consecutive compressive-strength tests equals or exceedsspecified compressive strength and no compressive-strength test valuefalls below specified compressive strength by more than 500 psi (3.4 MPa).

9. Test results shall be reported in writing to Architect, concrete manufacturer,and Contractor within 48 hours of testing. Reports of compressive-strengthtests shall contain Project identification name and number, date of concreteplacement, name of concrete testing and inspecting agency, location ofconcrete batch in Work, design compressive strength at 28 days, concretemixture proportions and materials, compressive breaking strength, andtype of break for both 7- and 28-day tests.

10. Nondestructive Testing: Impact hammer, sonoscope, or othernondestructive device may be permitted by Architect but will not be usedas sole basis for approval or rejection of concrete.

11. Additional Tests: Testing and inspecting agency shall make additional testsof concrete when test results indicate that slump, air entrainment,compressive strengths, or other requirements have not been met, asdirected by Architect. Testing and inspecting agency may conduct tests todetermine adequacy of concrete by cored cylinders complying withASTM C 42/C 42M or by other methods as directed by Architect.

12. Additional testing and inspecting, at Contractor's expense, will beperformed to determine compliance of replaced or additional work withspecified requirements.

13. Correct deficiencies in the Work that test reports and inspections indicatedo not comply with the Contract Documents.

END OF SECTION 03310 Amendment


Amendment – Swept-In Grout for Clarifier Bottom

E:\Charles County\Clarifier\Specs\100% Final Clar\03600 Swept-In Grout for Clarifier Bottom.docx August 201803600-i

SECTION 03600

AMENDMENT – SWEPT-IN GROUT FOR CLARIFIER BOTTOM(Amendment to the County Standard Specification Section 03600)

PARAGRAPH INDEX

Page No.

PART 1 – GENERAL

1.01 Description 03600-11.02 Related Work Included Elsewhere 03600-11.03 Quality Assurance 03600-11.04 Submittals 03600-1

PART 2 – PRODUCTS

2.01 Materials Furnished by the County 03600-12.02 Contractor’s Option 03600-12.03 Detailed Material Requirements 03600-2


3.01 Preparation 03600-23.02 Forms 03600-23.03 Mixing 03600-23.04 Pouring or Pumping Grout 03600-23.05 Placing Mortar 03600-23.06 Curing 03600-2



E:\Charles County\Clarifier\Specs\100% Final Clar\03600 Swept-In Grout for Clarifier Bottom.docx August 201803600-ii




E:\Charles County\Clarifier\Specs\100% Final Clar\03600 Swept-In Grout for Clarifier Bottom.docx January 201803600-1

SECTION 03600


PART 1 - GENERAL

1.01 DESCRIPTION

Add the following: Section includes modifications to Section 03600 to make thespecified grout more suitable as a swept-in grout for the clarifier bottom slab.

1.02 RELATED WORK INCLUDED ELSEWHERE

No Changes


Manufacturer Qualifications: Each manufactured bonding agent, and non-shrink groutmanufacturer shall employ factory-authorized service representatives who areavailable for consultation and project-site inspection and on-site assistance.

1.04 SUBMITTALS

A. Action Submittals:

Product Data: For each type of product Include construction details, materialdescriptions, physical properties, test data and mixing, preparation andapplication instructions.

B. Informational Submittals:

Material Certificates: For aggregates used in extending the grout non-shrinkgrout mix.

Product Test Reports: For each manufactured bonding agent, and non-shrinkgrout.

PART 2 - PRODUCTS

2.01 MATERIALS FURNISHED BY THE COUNTY

No Changes

2.02 CONTRACTOR’S OPTIONS

Non-shrink grout for swept-in grout shall be the non-metallic type. Metallic grout is notacceptable for swept-in grout.



E:\Charles County\Clarifier\Specs\100% Final Clar\03600 Swept-In Grout for Clarifier Bottom.docx January 201803600-2

2.03 DETAILED MATERIAL REQUIREMENTS

A. Water from Other than Potable Sources

No Changes

B. Non-shrink grouts and Mortars

Add the following: The grout mix must be extendable by adding pea gravel to themix.

C. Extending Swept-In Grout

Pea gravel aggregate may be used to extend the coverage of the pre-packagednon-shrink grout. The aggregate shall comply with ASTM C33/C33M, Size 8,Class 4S. The amount of aggregate added to the mix shall be within the limitsrecommended by the grout manufacturer.

PART 3 - EXECUTION

3.01 PREPARATION

A. No Changes.

B. Add the following: Apply a bonding compound to the surfaces to receive swept-in grout.

3.02 FORMS

No Changes

3.03 MIXING

A. Add the following: Pea gravel used for extension shall be within the limits of thegrout manufacturer’s recommendations.

B. No Changes.

3.04 POURING OR PUMPING GROUT

Add the following: Swept-in grout shall be finished first using screeds attached to thesludge sweeping mechanism. The surface shall then be floated and troweled.

3.05 PLACING MORTAR

No Changes

3.06 CURING

No Changes

MWRF Final Clarifier Improvements High-Performance CoatingsCharles County, MD

E:\Charles County\Clarifier\Specs\100% Final Clar\09960 FIN High-performance coatings - 14 Apr 18.doc August 201809960 - i

SECTION 09960

HIGH-PERFORMANCE COATINGS

PARAGRAPH INDEXPage No.

PART 1 - GENERAL

1.01 Summary 09960-11.02 Definitions 09960-11.03 Submittal 09960-11.04 Maintenance Material Submittals 09960-11.05 Quality Assurance 09960-11.06 Delivery, Storage, and Handling 09960-21.07 Field Conditions 09960-2

PART 2 – PRODUCTS2.01 Manufacturers 09960-22.02 High-Performance Coatings, General 09960-22.03 Metal Primers 09960-32.04 Epoxy Coatings 09960-32.05 Polyurethane Coatings 09960-4

PART 3 – EXECUTION3.01 Examination 09960-43.02 Preparation 09960-43.03 Application 09960-53.04 Cleaning and Protection 09960-63.05 Exterior High-Performance Coating Schedule 09960-63.05 Interior High-Performance Coating Schedule 09960-6


E:\Charles County\Clarifier\Specs\100% Final Clar\09960 FIN High-performance coatings - 14 Apr 18.doc August 201809960 - ii



E:\Charles County\Clarifier\Specs\100% Final Clar\09960 FIN High-performance coatings - 14 Apr 18.doc August 201809960 - 1

SECTION 09960


PART 1 - GENERAL

1.01 SUMMARY

A. Section includes surface preparation and application of high-performance coatingsystems on the following substrates:

1. Exterior Substrates:I. Steel.

2. Interior Substrates:II. Concrete

III. Steel (not galvanized).

1.02 DEFINITIONS

A. Gloss Level 6: 70 to 85 units at 60 degrees, according to ASTM D 523.

B. Gloss Level 7: More than 85 units at 60 degrees, according to ASTM D 523.

1.03 SUBMITTAL

A. Product Data: For each type of product indicated. Include preparation requirements andapplication instructions.

B. Product List: For each product indicated, include the following:

1. Cross-reference to paint system and locations of application areas. Use samedesignations indicated on Drawings and in schedules.

2. VOC content.

1.04 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials, from the same product run, that match products installed andthat are packaged with protective covering for storage and identified with labelsdescribing contents.

1. Coatings: 5 percent, but not less than 1 gal. of each material and color applied.


A. Mockups: Apply mockups of each coating system indicated to verify preliminaryselections made under sample submittals and to demonstrate aesthetic effects and setquality standards for materials and execution.



1. Engineer will select one surface to represent surfaces and conditions forapplication of each coating system specified in Part 3.

I. Wall and Ceiling Surfaces: Provide samples of at least 50 sq. ft.II. Other Items: Engineer will designate items or areas required.

2. Final approval of color selections will be based on mockups. Owner shall selectcolors from manufacturer’s color samples

I. If preliminary color selections are not approved, apply additionalmockups of additional colors selected by Emgineer at no added cost toOwner.

3. Approval of mockups does not constitute approval of deviations from theContract Documents contained in mockups unless Engineer specificallyapproves such deviations in writing.

4. Subject to compliance with requirements, approved mockups may become partof the completed Work if undisturbed at time of Substantial Completion.

1.06 DELIVERY, STORAGE, AND HANDLING

A. Store materials not in use in tightly covered containers in well-ventilated areas withambient temperatures continuously maintained at not less than 45 degrees F.

1. Maintain containers in clean condition, free of foreign materials and residue.

2. Remove rags and waste from storage areas daily.

1.07 FIELD CONDITIONS

A. Apply coatings only when temperature of surfaces to be coated and surrounding airtemperatures are between 50 and 95 deg F.

B. Do not apply coatings when relative humidity exceeds 85 percent; at temperatures lessthan 5 deg F above the dew point; or to damp or wet surfaces.

C. Do not apply exterior coatings in snow, rain, fog, or mist.

PART 2 - PRODUCTS

2.01 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by thefollowing:

1. Carboline Paints.

2. PPG Architectural Finishes, Inc.

3. The Sherwin Williams Company.

2.02 HIGH-PERFORMANCE COATINGS, GENERAL



A. Material Compatibility:

1. Provide materials for use within each coating system that are compatible withone another and substrates indicated, under conditions of service and applicationas demonstrated by manufacturer, based on testing and field experience.

2. For each coat in a coating system, provide products recommended in writing bymanufacturers of topcoat for use in coating system and on substrate indicated.

3. Provide products of same manufacturer for each coat in a coating system.

B. VOC Content: Products shall comply with VOC limits of authorities havingjurisdiction and, for interior coatings applied at project site, the following VOC limits,exclusive of colorants added to a tint base, when calculated according to 40 CFR 59,Subpart D (EPA Method 24).

1. Flat Paints and Coatings: 50 g/L.

2. Nonflat Paints and Coatings: 150 g/L.

3. Primers, Sealers, and Undercoaters: 200 g/L.

4. Anti-Corrosive and Anti-Rust Paints Applied to Ferrous Metals: 250 g/L.

5. Zinc-Rich Industrial Maintenance Primers: 340 g/L.

6. Pre-Treatment Wash Primers: 420 g/L.

7. Floor Coatings: 100 g/L.

8. Shellacs, Clear: 730 g/L.

9. Shellacs, Pigmented: 550 g/L.

C. Colors: As indicated in finish schedule

2.03 METAL PRIMERS

A. Primer, Zinc-Rich, Epoxy: MPI #20.

1. Carboline Carbozinc 859.

2. PPG Aquapon 97-670

3. Sherwin Williams Zinc Clad II Plus.

2.04 EPOXY COATINGS

A. Epoxy, High-Build, Low Gloss: MPI #108.

1. Carboline Carboguard 691.




3. Sherwin Williams Macropoxy 646 Fast Cure.

2.05 POLYURETHANE COATINGS

A. Polyurethane, Two-Component, Pigmented, Semi-Gloss (Gloss Level 6): MPI #72.

1. Carboline 133 HB.

2. PPG Pitthane Ultra 95-812.

3. Sherwin Williams Acrolon 218 HS.

PART 3 - EXECUTION

3.01 EXAMINATION

B. Examine substrates and conditions, with Applicator present, for compliance withrequirements for maximum moisture content and other conditions affectingperformance of the Work.

1. Maximum Moisture Content of Substrates: When measured with an electronicmoisture meter as follows:

I. Concrete: 12 percent.II. Masonry (Clay and CMU): 12 percent.

C. Verify suitability of substrates, including surface conditions and compatibility withexisting finishes and primers.

D. Proceed with coating application only after unsatisfactory conditions have beencorrected.

1. Beginning coating application constitutes Contractor's acceptance of substratesand conditions.

3.02 PREPARATION

A. Comply with manufacturer's written instructions and recommendations in "MPIArchitectural Painting Specification Manual" applicable to substrates indicated.

B. Remove hardware, covers, plates, and similar items already in place that are removableand are not to be painted. If removal is impractical or impossible because of size orweight of item, provide surface-applied protection before surface preparation andpainting.

1. After completing painting operations, use workers skilled in the trades involved toreinstall items that were removed. Remove surface-applied protection.

C. Clean substrates of substances that could impair bond of coatings, including dust, dirt,oil, grease, and incompatible paints and encapsulants.

2. Remove incompatible primers and re-prime substrate with compatible primers orapply tie coat as required to produce coating systems indicated.



D. Concrete Substrates: Remove release agents, curing compounds, efflorescence, andchalk. Do not coat surfaces if moisture content or alkalinity of surfaces to be coatedexceeds that permitted in manufacturer's written instructions.

1. New and Existing Concrete: Abrasive blast clean surfaces to comply with SSPC-SP 7/NACE No. 4, "Brush-Off Blast Cleaning."

2. New and Existing Concrete: Clean surfaces with pressurized water. Usepressure range of 3000 to 4000 psi at 6 to 12 inches, with a minimum flow of 4GPM and zero degrees of nozzle rotation. Allow concrete to dry for 24 hoursbefore commencement of coating.

3. Both abrasive blast cleaning and pressure washing are required.

F. Steel Substrates: Remove rust, loose mill scale, and shop primer if any. Clean usingmethods recommended in writing by paint manufacturer. but not less than the following:

1. SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

G. Shop-Primed Steel Substrates: Clean field welds, bolted connections, and abradedareas of shop paint, and paint exposed areas with the same material as used for shoppriming to comply with SSPC-PA 1 for touching up shop-primed surfaces.

H. Galvanized-Metal Substrates: Remove grease and oil residue from galvanized sheetmetal by mechanical methods to produce clean, lightly etched surfaces that promoteadhesion of subsequently applied coatings.

3.03 APPLICATION

A. Apply high-performance coatings according to manufacturer's written instructions andrecommendations.

1. Use applicators and techniques suited for coating and substrate indicated.

2. Coat surfaces behind movable equipment and furniture same as similar exposedsurfaces. Before final installation, coat surfaces behind permanently fixedequipment or furniture with prime coat only.

3. Coat back sides of access panels, removable or hinged covers, and similarhinged items to match exposed surfaces.

4. Do not apply coatings over labels of independent testing agencies or equipmentname, identification, performance rating, or nomenclature plates.

B. Tint each undercoat a lighter shade to facilitate identification of each coat if multiplecoats of the same material are to be applied. Tint undercoats to match color of finishcoat, but provide sufficient difference in shade of undercoats to distinguish eachseparate coat.

C. If undercoats or other conditions show through final coat, apply additional coats untilcured film has a uniform coating finish, color, and appearance.

D. Apply coatings to produce surface films without cloudiness, spotting, holidays, laps, brushmarks, runs, sags, ropiness, or other surface imperfections. Produce sharp glass linesand color breaks.



3.04 CLEANING AND PROTECTION

A. At end of each workday, remove rubbish, empty cans, rags, and other discardedmaterials from Project site.

B. After completing coating application, clean spattered surfaces. Remove spatteredcoatings by washing, scraping, or other methods. Do not scratch or damage adjacentfinished surfaces.

C. Protect work of other trades against damage from coating operation. Correct damage bycleaning, repairing, replacing, and recoating, as approved by Architect, and leave in anundamaged condition.

D. At completion of construction activities of other trades, touch up and restore damaged ordefaced coated surfaces.

3.05 EXTERIOR HIGH-PERFORMANCE COATING SCHEDULE

A. Steel Substrates, including steel equipment and pipe supports, steel pipes, bollards,exposed structural steel and steel accessories:

1. Pigmented Polyurethane over Epoxy Zinc-Rich Primer and High-Build EpoxySystem:

I. Prime Coat: Primer, zinc-rich, epoxy.II. Intermediate Coat: Epoxy, high-build, low gloss.

III. First Topcoat: Polyurethane, two-component, pigmented, semi-gloss(Gloss Level 4).

B. Concrete Primary Clarifier – Bottom and Walls:

1. Epoxy System:I. Intermediate Coat: Simpson Strong-Tie FX-494.II. Top Coat: Simpson Strong-Tie FX-494.

3.06 INTERIOR HIGH-PERFORMANCE COATING SCHEDULE

A. Concrete Floors – below First Floor:

1. Epoxy System:I. Intermediate Coat: Epoxy, high-build, low gloss.II. Top Coat: Epoxy, high-build, low gloss.

B. Concrete Walls, Top Surfaces, and Bottom Surfaces – Wet Well, Screen Channels andOther Immersed or Splash-Zone Concrete:


C. Steel Substrates including process piping, exposed steel structure, steel handrails andguards, pipe supports and anchors, and equipment not factory finished:

1. Pigmented Polyurethane over Epoxy Zinc-Rich Primer System:I. Prime Coat: Primer, zinc-rich, epoxy.



II. Intermediate Coat: Epoxy, high-build, low gloss.III. Topcoat: Polyurethane, two-component, pigmented, semi-gloss (Gloss

Level 4).

END OF SECTION


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E:\Charles County\Clarifier\Specs\100% Final Clar\11225 Final Clarifier.doc August 201811225-i

SECTION 11225

FINAL CLARIFIERS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Description 11225-11.02 Submittals 11225-11.03 Equipment Design 11225-11.04 Manufacturer's Inspection and Start-Up 11225-21.05 Manufacturer's Certificate 11225-21.06 Equipment Manufacturer’s Experience 11225-2

PART 2 - PRODUCTS

2.01 General 11225-22.02 Design Criteria 11225-22.03 Clarifier Equipment 11225-22.04 Center Drive Assembly 11225-42.05 Walkway Access Bridge 11225-62.06 Center Cage and Rake Arms 11225-72.07 Center Column 11225-72.08 Feedwell 11225-72.09 Energy Dissipating Inlet (EDI) 11225-82.10 Surface Scum Skimming Equipment 11225-82.11 Effluent Weir and Scum Baffle 11225-82.12 Painting and Surface Preparation 11225-92.13 Spare Parts 11225-92.14 Control Panels 11225-92.15 System Controls/Operations 11225-9

PART 3 - EXECUTION

3.01 Installation 11225-103.02 Field Testing 11225-11


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E:\Charles County\Clarifier\Specs\100% Final Clar\11225 Final Clarifier.doc August 201811225-ii



Final Clarifiers

E:\Charles County\Clarifier\Specs\100% Final Clar\11225 Final Clarifier.doc August 201811225-1

SECTION 11225

FINAL CLARIFIERSPART 1-GENERAL

1.01 DESCRIPTION

A. Provide all labor, materials, equipment and services necessary for and incidentalto, the complete and satisfactory installation of the Clarifiers as specified hereinand as shown on the Contract Drawings.

B. Each mechanism shall be a center column supported, center feed unit withperipheral effluent collection. A center drive mechanism shall be provided forrotation of the rake arms and scum skimming mechanism.

C. The equipment shall be designed to effectively settle mixed liquor suspended solidsand scrape the settled solids from the basin floor to the sludge withdrawal sump asshown on the drawings. The clarified effluent shall be collected uniformly by theperipheral launder. Surface scum shall be collected by the scum skimmingequipment and discharged through the scum withdrawal pipe.

D. The equipment furnished for each clarifier mechanism shall include but not belimited to: walkway with handrails, center drive assembly, center drive platform,center support column with inlet openings, energy dissipating inlet (EDI), feedwell,center cage, sludge collection arms with rake blades, surface scum skimmingequipment, effluent weir plates and scum baffle, anchor bolts and assemblyfasteners.

E. Except where specifically indicated otherwise, all plates and structural membersdesignated for submerged service shall have a minimum thickness of 1/4 inch. Allstructural steel will conform to ASTM A-36 requirements and steel plate will conformto ASTM A283C requirements. All anchor bolts and assembly fasteners shall be304 stainless steel. Handrail, skimmer, and rake blade squeegee fasteners shall be304 stainless steel.

1.02 SUBMITTALS

A. Shop drawings shall be submitted for all items specified herein and as specifiedunder Division 1.

B. Provide operation and maintenance manuals for all specified equipment asdescribed in specification and as specified under Division 1.

1.03 EQUIPMENT DESIGN

A. Equipment design, workmanship, testing and operation shall be as specifiedherein.

B. Unless otherwise specified herein, starters, pushbuttons and other electricaldevices shall be as specified and provided under the Division 16 on thespecifications, and shall be arranged as shown on the electrical andinstrumentation drawings.


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1.04 MANUFACTURER'S INSPECTION AND START-UP

The Contractor shall furnish the service of the clarifier manufacturer's qualified fieldrepresentative to inspect the equipment after installation, instruct plant personnel in itsoperation and maintenance, and supervise its initial operation for 8 eight hour days foreach trip to jobsite. A minimum of 4 trips to the job site are required.

1.05 MANUFACTURER'S CERTIFICATE

The Contractor shall furnish the Engineer with a Manufacturer's Certificate, as specifiedunder Division 1 certifying the Clarifiers have been installed in a complete andsatisfactory manner ready for operation.

1.06 EQUIPMENT MANUFACTURER’S EXPERIENCE

A. Clarifier manufacturer shall have a minimum of 10 years experience in themanufacturer of equipment similar to that specified.

B. The Equipment Manufacturer shall provide a list of at least ten (10) U.S.installations where equipment identical to that proposed to be furnished has beenin successful operation.

C. The term "installation" shall mean individual projects/contracts. Multipleequipment units for a project shall be considered as one (1) installation towardmeeting the experience requirements. Each installation information shall include,but not be limited to, the following:

1. Name and location of the installation.2. Name of person in direct responsible charge for the equipment.3. Address and phone number of person in direct responsible charge.4. Month and year the equipment was placed in operation.5. Capacity of Equipment.

D. The Clarifier equipment shall be as manufactured by Ovivo, Inc or equal.

PART 2 - PRODUCTS

2.01 GENERAL

Clarifiers shall consist essentially of a center pier, an influent riser pipe or influent centerpier, an influent well, flocculation baffles and a central driving mechanism. Equipmentshall be located within a concrete basin as shown on the Contract Drawings. The drivemechanism shall rotate a fabricated steel sludge collection scraper arm with spiral rakeblades. The Clarifier shall include control panel as specified herein after, fiberglass v-notch weirs, fiberglass scum baffled, bridge walkway, center pier platform, and allassociated accessories and appurtenances as needed to provide a complete andfunctional Clarifier.

2.02 DESIGN CRITERIA

A. The clarifier equipment shall continuously remove settled sludge as shown on thedrawings. The equipment shall remove sludge from the entire tank bottom with aminimum of sludge disturbance to result in a clear effluent. Each clarifier shall bedesigned to operate at the following range of flow conditions:


Final Clarifiers


InfluentPeak 30.0 MGDAverage 20.0 MGD

B. Each clarifier shall be designed to operate at the following process parameters:

1. Drive motor 1 hp (max)2. Drive continuous torque 30,000 ft-lb3. Drive 100% design torque 70,000 ft-lb4. Drive momentary peak torque 123,000 ft-lb5. Mechanism rotation Clockwise6. Rake arm tip speed, constant 8 – 10 ft/min

C. Each clarifier shall be designed to meet the following design requirements,Contractor shall confirm all dimensions and elevations:

Final Clarifier1. Quantity 42. Basin diameter 110 FT3. Side water depth 10.5 FT4. Tank freeboard 1.5 FT5. Floor slope 1:126. Center column diameter 36 IN7. Feedwell diameter 28 FT8. Feedwell depth 6 FT9. Feedwell scum ports 410. EDI diameter 10 FT11. EDI submerged depth 3 FT12. Number of baffled EDI openings 813. Cage minimum size 4 FT Square14. Rake Arm minimum size 3’-10” square15. Scum box width 4 FT

D. The clarifiers shall meet the design criteria as shown on the Contract Drawings.

2.03 CLARIFIER EQUIPMENT

A. Materials

1. Structural steel shall conform to the requirements of the current edition ofASTM-A-36; minimum thickness shall be 1/4-inch, unless specifiedotherwise. All connections shall be capable of developing full strength ofthe members.

2. The maximum allowable stresses on structural steel members under thehighest operational torque loading conditions shall not exceed thosepermitted by the AISC "Specifications for the Design, Fabrication, andErection of Structural Steel for Buildings", later edition.


Final Clarifiers


3. All welding to conform to American Welding Society Standard AWSD1.1. Structural support members shall be shop welded for bolted fieldassembly. Field welding shall be limited to bridge splices and tackwelding of skimmer connections after final positioning.

4. Castings shall be of special high grade ductile iron or cast steel having atensile strength of not less than 40,000 psi, a yield strength of not lessthan 30,000 psi, a compressive strength of not less than 150,000 psi, acoefficient of elasticity of not less than 17,000,000 and a Brinell hardnessof not less than 196.

5. Aluminum shall be alloy 6061-T6.

6. Panel lengths and member sizes shall be selected such that slendernessratios do not exceed 200 for compression and 240 for tension. Forstrength, the controlling member force shall be used to determinemember size.

7. Maximum deflection in a span under combined live and dead loads shallnot exceed L/360.

2.04 CENTER DRIVE ASSEMBLY

A. The center drive assembly shall consist of an integral motor and primary speedreducer coupled through roller chain and sprockets to a secondary worm gearreducer driving the main gear through a pinion and shall have an integral overloadprotection system.

B. All gears and bearings shall be oil bath lubricated with the main bearing totallysubmerged in oil and the teeth of the main spur gear submerged at least 85 percent in the oil bath. Oil pumps for lubrication or grease lubricated bearings are notconsidered appropriate for this application and will not be allowed. The oil reservoirfor the main bearing and gear shall have a section of minimum depth 5 inchesbelow the main bearing to positively prevent contamination of the main bearing andgears with condensate or other contaminants. Gear and bearing housings mustalso be fitted with oil level sight glasses and condensate drains. Condensate mustbe allowed to drain from a low point of the housing. Condensate and contaminantswill not be allowed to drain through the lower pinion bearing.

C. Drive components will be located via a machined, registered fit to preserve thealignment of key drive components under all load conditions. Inspection of thecompleted drive unit shall be accomplished at the clarifier manufacturer's shop, withreports of all tests and certifications of material hardness being made available forreview at the Engineer's request prior to shipment to the job site.

D. Major drive components, main gears and bearings must be designed to allow forseparate and individual replacement by plant personnel to facilitate quick andeconomical repairs.

E. The complete center drive assembly, including the overload protection device, shallbe a regularly manufactured in-house product of the clarifier manufacturer. Thecenter drive assembly is a key element in a successful clarifier installation, thereforedrive assemblies purchased from third party vendors will not be accepted.


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F. The primary gear reducer shall be of worm/worm gear or helical design and shall beC-face or integrally mounted to the electric motor. The motor shall be minimum 1horsepower and shall be totally enclosed, fan cooled, with a 1.15 service factor, andhave bearings with a minimum B10 rating of 50,000 hours. Operating electriccurrent will be 230/460 volt, 3 phase, and 60 hertz. Each motor will be NEMADesign B employing Class F insulation designed for an ambient temperature of 40°C.

G. The motor and primary speed reducer shall drive a secondary worm gear reducerthrough a #60 roller chain and steel sprockets enclosed in a galvanized 22 gaugesteel guard. Sprockets and chain shall be designed for the connected horsepowerof the drive with a minimum service factor of 1.4. Provision shall be made foradjustment of chain tension.

H. The main drive unit shall consist of a worm gear secondary reduction unit, pinionand main spur gear assembly. The secondary reducer shall be a worm/worm gearreducer specifically designed for this application. The worm gear shall becentrifugally cast manganese bronze. The worm shall be hardened alloy steel. Asingle piece pinion shall be keyed to the worm gear to transmit power from theworm gear to the spur gear. Two piece pinions are not acceptable. In order tomaintain proper alignment between the pinion and the spur gear, the pinion will besupported by bearings both above and below the spur gear. The bearings shall befitted into precision machined bearing pilots to positively insure bearing and gearalignment.

I. The main spur gear material shall be cast iron per ASTM A536 grade 100-70-03 orequal. The gear shall have a minimum pitch diameter of 40 inches with a 6.0 inchface width or the equivalent spur gear surface area of 754 square inches. Spurgear surface area is defined as the spur gear pitch diameter multiplied by the spurgear face width multiplied by 3.14. Drives with split main gears shall be de-rated to85% of their AGMA 20 year calculated torque.

J. The main gear shall rotate and be supported on a ball bearing assembly providedwith four replaceable liner strips fitted into the main gear and turntable base. Linerstrips shall be special vacuum degassed carbon corrected alloy steel hardened to aRockwell hardness of at least 43 to 46 Rc. The turntable base shall be a minimum1 inch thick to insure adequate structural rigidity to properly support the drivebearing and gear.

K. If the bearing that supports the main gear are a precision 4-point contact arch typeball bearing assembly, the bearing races shall be AISI 4150 alloy steel, carboncorrected, vacuum degassed, deoxidized and heat treated to a minimum hardnessof Rockwell C58. The bearing outer race shall be mounted in a precision register orpilot with a machined shoulder a minimum of 1/2 inch deep into the base housing.This register shall restrain the bearing and gear from horizontal movement anddeflections. The design shall be such that the B-10 life of the bearing race is aminimum of 20 years based on the maximum specified speed and a uniformlydistributed load on the rotating mechanism. The bearing assembly should bereplaceable, independent of the gear. One piece gear bearings are not acceptable.

L. The main gear and bearing shall be completely enclosed in an ASTM A-48 Class40A cast iron housing provided with neoprene dust seals. Due to poor corrosionresistance and unacceptable deflection, fabricated steel housings are notacceptable. In order to ensure the maximum possible base rigidity the gear housingshall be of full sidewall construction, integral with the base. Main bearing shall not


Final Clarifiers


be used as part of the exterior housing. Prior to assembly, the base shall bethoroughly inspected for seep holes or inclusions and given a hydrostatic test toinsure no leaks are in the oil containment area. Shop inspection reports must bemade available for review.

M. The drive unit shall be equipped with an electro-mechanical overload control deviceactuated by thrust from the worm shaft. The pointer shall provide a visual reading ofthe relative main gear output torque on a 0 to 100 percent graduated scale. The100 percent reading shall equal the 100 percent drive rating as specified in section1.03. The control device shall also activate an alarm switch for warning ofimpending overload, a motor cutout switch for overload protection and a back-upsafety motor cutout switch for back up overload protection. In lieu of a back-upsafety motor cutout switch a slip clutch assembly will be acceptable upon review bythe Engineer. The respective switches in the overload control device shall befactory calibrated and set to the following settings:

1. Alarm - 40% of scale.2. Motor cutout - 85% of scale.3. Back-up motor cutout or slip clutch - 100% of scale.

N. All drive control components shall be mounted in a NEMA 4X enclosure of epoxycoated aluminum construction with a gasket sealed removable cover. The pointershall be covered with a plexi-glass enclosure and shall be above the walkwaysurface for visibility from the walkway. Amperage sensing devices are notacceptable for torque overload protection due to their inability to react quicklyenough to prevent damage to the drive. Overload devices with exposed linkageconnections will not be accepted due to possible corrosion problems. Deviceswhich react to rotational movement of the secondary reduction unit will not beallowed due to possible misalignment of gearing created by the movement of thereduction unit.

O. The center drive unit shall be designed for the continuous torque rating as specifiedin section 1.03. The continuous torque shall be defined as the minimum torque atwhich the drive mechanism may operate continuously 24 hours per day, 365 daysper year, for 20 years, at the specified sludge collector arm speed. Main gear andpinion calculations shall be based upon ANSI/AGMA 2001 C-95 (1995) standard forrating the pitting resistance and bending strength of involute spur and helical gearteeth. Calculations shall clearly present the values used for the design parameters.Specifically, the load distribution factor shall be determined by the empirical method.For parameters which are material dependent, such as allowable contact stress, thecalculations shall include a complete description of material and heat treatmentused.

P. Worm gearing shall be designed and rated to equal or exceed the specifiedcontinuous torque and life. The basis for rating shall be ANSI/AGMA 6034-A87(March 1988) standards for durability rating and design of worm gear reducers.

Q. The continuous torque rating for the drive unit shall be the lowest value determinedfor the gearing.

2.05 WALKWAY ACCESS BRIDGE

A. The clarifier shall be provided with a 36 inch clear open width walkway extendingfrom the tank wall to the center drive platform. The walkway shall be supported at


Final Clarifiers


the center by the drive unit and supported on the opposite end by the tank wall. Asa minimum the walkway shall be designed to safely withstand all dead loads plus alive load of 150 pounds per linear foot with a maximum deflection of l/360, over theentire span. The walkway shall consist of a structural steel truss sufficiently bracedto resist the specified design loads. The truss sides serve as handrail on both sidesof the walkway. The walkway decking shall be 1-1/4 inch aluminum I-Bar grating.

B. A center drive operations platform shall be provided. It shall be a minimum of 8 feetsquare to provide clearance around the center assembly and drive control formaintenance and service. The drive platform shall be decked with 1-1/4 inchaluminum I-Bar grating and have sufficient structural steel supports to meet thespecified design load conditions.

C. Handrails with toe plate shall be provided around the center drive platform. Alongthe walkway, the truss members shall take the place of handrails and form anOSHA compliant railing system. The handrailing shall be 1-1/2 inch diameteraluminum pipe, 2-rail design, with fittings factory assembled to posts. Rails are tobe shipped to the job site in stock lengths for cutting and fitting. The toe plate shallbe a 4 inch x ¼ inch plate or a 4 inch tall aluminum extruded channel. Thehandrailing shall be in conformance with the handrail specifications, found within thisset of bid documents, and shall be as shown on the drawings.

2.06 CENTER CAGE AND RAKE ARMS

A. The center cage shall be of steel box truss construction, and shall be provided withconnections for the two (2) sludge removal arms, EDI, and feedwell supports. Thetop of the cage shall be bolted to the main gear which shall rotate the cage with theattached arms, EDI, and feedwell. The minimum angle size used for construction ofthe cage and rake arms shall be 2 inch x 2 inch x 1/4 inch members.

B. The clarifier mechanism shall include two (2) sludge removal arms of steel trussconstruction, with steel raking blades and adjustable 20 gauge, 304 stainless steelsqueegees. The rake blades shall be properly spaced to insure complete raking ofthe basin floor twice per revolution.

C. The cage and rake arms shall be designed such that calculated stresses do notexceed the AISC allowable stress at twice the drive 100% rating.

2.07 CENTER COLUMN

A. A 1/4 inch wall thickness, stationary center column shall be provided which shallserve as the influent pipe. One end shall have a 1-1/4 inch support flange forbolting to the foundation with a minimum of eight (8) 1-1/4 inch diameter anchorbolts as shown on the plans. A similar flange shall be provided at the top of thecolumn for supporting and securing the center drive assembly.

B. Influent openings shall be provided in the upper portion of the column to allowunrestricted passage of the flow into the feedwell. Influent velocity shall be reducedby providing a total inlet port area a minimum of 135 percent of the center columncross sectional area.

2.08 FEEDWELL


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A. The feedwell shall be supported by structural members attached to the centerrotating cage. The feedwell shall be fabricated from 3/16 inch steel plate with upperand lower reinforcing rim angles as required and stiffeners as required. A minimumof four (4) scum ports, 4 inches high x 16 inches long, shall be provided equallyspaced around the feedwell periphery to allow scum to exit from the feedwell atwater level. Scum ports shall be free to allow scum to escape with an adjustable,angled baffle plate to deflect floating material exiting the port.

2.09 ENERGY DISSIPATING INLET (EDI)

A. The clarifier shall be equipped with an energy dissipating inlet located inside therotating feedwell. The dissipating inlet shall be designed to dissipate the energy ofthe incoming flow and induce flocculation of the feed solids. The energy dissipatinginlet shall have a bottom plate extending to within one inch of the center column.The inlet shall be constructed of 3/16 inch plate with a ¼” bottom plate. Baffledopenings equally spaced around the periphery shall be provide for 1) energydissipation, 2) exit flow direction tangent to the inlet wall and 3) prevention ofdownward flow.

2.10 SURFACE SCUM SKIMMING EQUIPMENT

A. Skimmer: Two skimmer assemblies shall be furnished as part of each mechanism.The skimmer assemblies shall be arranged to sweep the surface of the settlingzone automatically removing scum and floating material into a scum box mounted atthe tank perimeter.

B. The skimmer blade shall be tangential to the rotating feedwell and be supported byvertical supports from the rake arm. The skimmer assembly shall be a pivotingaluminum skimmer device equipped with manual out-of-service lock out. Theskimmer shall have replaceable neoprene rubber wipers on all three sides to form apocket to trap the scum and discharge the scum into the scum box.

C. The scum box shall be fabricated from 1/4 inch steel plate, supported from the tankwall, and connected to a six (6) inch scum line, as shown on the drawings.

D. The clarifier equipment manufacturer shall furnish a flush valve assembly forautomatic flushing of the scum box and scum pipe. The flush valve assembly shallbe adjustable to allow 0 to 20 gallons of clarified effluent to enter the scum box asthe skimmer assembly passes over the scum box. The assembly shall consist of astainless steel lever, UHMW seal plate and neoprene diaphragm mounted to thescum box. The diaphragm shall be opened and closed by an easily adjustable,submerged actuation arm mounted to the rotating skimmer blade. The flush volumeadjustment mechanism shall be above the water level and shall include at leastthree settings.

2.11 EFFLUENT WEIR AND SCUM BAFFLE

A. Effluent weir plates shall consist of 9 inch deep x 1/4 inch thick FRP sections with 2-1/2 inch deep 90 degree V-notches at 6 inch intervals. The weir sections shall befastened to the tank wall using 316 stainless steel cinch anchor bolts hex nuts and 5inch diameter FRP washers, allowing for vertical adjustment. To prevent leakage allsurfaces between the launder walls and weir plates shall be given a seal coat ofsuitable mastic by the erection contractor.


Final Clarifiers


B. The scum baffle plates shall consist of 12 inch deep x 1/4 inch thick FRP sectionssupported from the tank wall by FRP angle brackets secured with 316 stainlesssteel cinch anchor bolts and hex nuts, allowing for vertical and radial adjustment. Inthe area of the scum box the baffle shall extend 24 inches deep startingapproximately 6 feet proceeding and ending 6 feet following the scum box.

2.12 PAINTING AND SURFACE PREPARATION

A. All non-submerged steel shall be sandblasted to SSPC-SP-6 specifications andgiven one prime coat of Tnemec 66 HS to 4-6 MDFT. All submerged steel shall besandblasted to SSPC-SP-10 specifications and given one prime coat of Tnemec 66HS to 4-6 MDFT.

B. Prior to assembly of the drive unit, the castings shall have been sandblasted andthoroughly cleaned to remove any foreign particles in the drive base. Afterassembly, the drive mechanism shall be solvent cleaned and power wire brushedas needed prior to painting.

C. The drive unit will receive a surface preparation of SSPC-SP-06 and will be finishcoated by manufacturer with two (2) coats of Tnemec N66 HS and one (1) coat ofTnemec Endura-shield series 73.

D. Gear motors shall be furnished with manufacturer's standard enamel.

2.13 SPARE PARTS

A. The intent of this specification is to provide uninterrupted operation for a minimumperiod of two (2) years. To meet this objective the clarifier manufacturer shallsupply any spare parts, excluding lubricants that are required to meet this timeframe. As a minimum, provide the following spare parts, per clarifier:

1. One (1) sight glass for each main drive housing containing oil.2. One (1) set of neoprene skimmer wipers.

2.14 CONTROL PANELS

A. The Clarifiers shall be controlled by NEMA 4X 304 Stainless Steel control panels.

B. Control panels shall include all devices necessary to accomplish systemoperation. The control panels shall be Ethernet communications capable.

2.15 SYSTEM CONTROLS/OPERATIONS

A. The clarifiers shall be controlled by the control panels specified hereinbefore.

B. The clarifiers shall integrate the following major components:

1. Clarifier Control Panels2. Clarifier Drives3. Facility MCC including associated starters4. Facility Control Panel/PLC

C. Control Modes


Final Clarifiers


1. ON Mode

With the ON/OFF selector switch in the ON position, the clarifier driveshall run continuously.

D. Alarms, Indications and Interlocks

1. The clarifiers drives shall shut down in the event of the following:

a. High Motor Temperatureb. High Torque (120%)

2. The following alarms shall be sent to the appropriate Facility ControlPanel/PLC:

a. High Motor Temperature Shutdownb. High Torque (120%) Shutdownc. Run Status

3. The local clarifier control panel, as located on the Contract Drawingsshall include the following:

a. ON/OFF selector switch w/ light indicationb. 100% High Torque alarmc. 120% High Torque alarmd. High Motor Temperature alarme. Torque Resetf. High Motor Temperature Reset

4. The local clarifier disconnect switch shall send a signal back to the motorstarter indicating if the circuit is opened or closed position. Coordinatethe color of the lights with the Owner.

PART 3 - EXECUTION

3.01 INSTALLATION

A. The equipment shall be erected in strict accordance with the manufacturer'srecommendations. A 2 inch layer of grout shall be applied to the tank floor in strictaccordance with the manufacturer's recommendations. Screed boards shall besupplied by the Contractor.

B. The equipment manufacturer shall provide templates, anchor, bolts, andspecialties as required for embedding in the concrete structure. All anchor boltsshall be stainless steel.

C. Tolerances on concrete work shall be in accordance with the equipmentmanufacturer's recommendations.

D. Structural assemblies shall be shipped in sections as large as feasible tominimize field assembly.

E. Installation of the equipment shall not be attempted until the equipmentmanufacturer has provided detailed installation manuals to the Contractor andthe Contractor and manufacturer have instructed key field personnel in detailregarding installation of the equipment.


Final Clarifiers


F. Weirs shall be set at the exact elevation shown on the Contract Drawings by theuse of a transit.

G. Scum baffles shall be set at the exact elevation required and shall set in a truecircle.

H. The Contractor shall remove any grout swept into the suction piping prior tostartup of the tank.

I. The manufacturer shall provide the services of a qualified factory representativeto supervise erection of his equipment for 5-days during construction.

3.02 FIELD TESTING

A. The Contractor shall perform operating and torque tests after completion ofinstallation. The torque shall be measured by a device provided by theContractor. These tests shall be performed for each clarifier and shall beconducted under the supervision of an engineer provided by the manufacturer.The tests shall be witnessed by a representative of the Engineer.

B. The Contractor shall provide all the necessary equipment, tools, labor andappliances to perform these tests.

C. The clarifier mechanism shall be field torque tested. The purpose of the torque testis to verify the structural integrity of the mechanism structural steel design andcenter drive unit. The testing shall be carried out under the supervision of theequipment manufacturer's representative and as approved by the Engineer beforethe mechanism is accepted and placed into operation.

D. The torque test shall consist of securing the rake arms by cables to anchor boltsinstalled by the contractor in the tank floor at locations specified by the equipmentmanufacturer. A load shall be applied to the scraper arm in small increments bymeans of a ratchet lever and cylinder connected to the cable assembly. Themagnitude of the applied load shall be measured by calculating the torque from thedistance of the line of action of each cable to the center line of the mechanism. Areading shall be taken at the drive design torque.

E. The manufacturer's service representative shall verify that the alarm, motor cut-out,and back-up safety motor cut-out switches are properly set and are in properoperation to protect the clarifier mechanism as specified.

END OF SECTION 11225


Final Clarifiers



MWRF Final Clarifier Improvements Electrical General ProvisionsCharles County, MD

E:\Charles County\Clarifier\Specs\100% Final Clar\16010.docx August 201816010 - i

SECTION 16010

ELECTRICAL GENERAL PROVISIONS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Related Documents 16010-11.02 Scope 16010-11.03 General Description 16010-11.04 Work Of Others 16010-11.05 References And Definitions 16010-11.06 Codes, Regulations And Permits 16010-21.07 Materials List And Shop Drawings 16010-21.08 Operating And Maintenance Manuals 16010-41.09 Operating And Maintenance Instructions 16010-41.10 Record Drawings 16010-41.11 Drawings 16010-41.12 Warranty 16010-5

PART 2 - PRODUCTS

2.01 General 16010-52.02 Concrete Work 16010-62.03 Equipment Supports, Foundations And Stands 16010-62.04 Labels And Nameplates 16010-7

PART 3 - EXECUTION

3.01 Coordination Of Work 16010-83.02 Handling And Storage Of Materials 16010-83.03 Damage To Other Work 16010-83.04 Mounting Heights 16010-83.05 Equipment Connections 16010-83.06 Work In Existing Areas 16010-93.07 Waterproofing 16010-93.08 Cutting, Patching And Painting 16010-93.09 Sleeves And Plates 16010-103.10 Placing In Service 16010-10


E:\Charles County\Clarifier\Specs\100% Final Clar\16010.docx August 201816010 - ii



E:\Charles County\Clarifier\Specs\100% Final Clar\16010.docx August 201816010 - 1

SECTION 16010


PART 1 - GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and General Provision of the Contract, including General andSupplementary Conditions, General Requirements and Division 1, apply to workspecified in Division 16.

B. This section describes General Provisions for electrical work included in Division16. This section applies to sections of Division 16.

1.02 SCOPE

A. Provide labor, materials, equipment and perform operations for completeinstallation of electrical work and related systems indicated or required ready forcontinuous and complete operation.

B. Provide labor and materials, although not specifically mentioned, but necessaryfor the completion of work and operation of the system, as if specifically called forat no additional cost to Owner.

1.03 GENERAL DESCRIPTION

A. Work includes, but not be limited to, providing the following:

1. Complete wiring system, including branch circuits and panelboards forlighting, power, receptacles and other special connections.

2. External lighting fixtures, switches, receptacles, pull boxes, outlets,conduit, wiring, lamps, ballasts and accessories.

1.04 WORK OF OTHERS

A. For work specified in other divisions, or furnished or provided under separatecontracts, cooperate and coordinate with other trades as if work were specified inthis division.

B. The following items of labor, materials related to or incidental to the installation ofthe electrical work will be provided under other divisions:

1. Motors and motor driven equipment.

1.05 REFERENCES AND DEFINITIONS

A. Following are definitions of terms and expressions used in Electrical Sections:

1. OWNER - Charles County, MD2. ENGINEER - Charles County Engineering Consultant3. PROVIDE - "furnish and install completely"4. DIRECTED - "directed by Owner"5. INDICATED - "indicated in Contract Documents"6. CONCEALED - "hidden from normal sight"



7. EXPOSED - "not concealed"8. WIRING - includes wire, fittings, conduit boxes and other

accessories which comprise system9. APPROVAL - Owner's acceptance of particular shop drawing,

material and method providing subject matter is inconformance with design concept and standardpractice

10. OR EQUIVALENT - a product, material or system with same generalattributes as item specified and meeting ContractDocuments as to capacity, performance,dimensions, general construction, and must besubmitted to Owner for review

B. References to catalogs, standards, codes, specifications, and regulations arelatest edition in effect at date of invitation to bid.

1.06 CODES, REGULATIONS AND PERMITS

A. Contractor shall secure and pay for required permits and inspections required bylocal authorities, and make applications required.

B. Materials furnished and work installed shall comply with latest issue of codes,rules, regulations, and recommendations of the following bodies, unlessotherwise noted:

1. American National Standards Institute (ANSI)2. American Society of Testing and Materials (ASTM)3. BOCA Basic Building Code4. Electrical Testing Laboratories (ETL)5. Factory Mutual (FM)6. Insulated Cable Engineer Association (ICEA)7. Institute of Electrical and Electronics Engineers (IEEE)8. Illumination Engineering Society (IES)9. National Board of Fire Underwriters' (NBFU)10. National Electrical Codes (NEC)11. National Electrical Manufacturers Association (NEMA)12. National Fire Protection Association (NFPA)13. National Electrical Safety Code (NESC)14. Occupational Safety and Health Agency (OSHA)15. Underwriters Laboratories, Inc. (UL)16. Local Power Company17. Local Telephone Company18. Applicable City, County, State and Federal Codes

C. Electrical installation shall be inspected and approved by the authority havingjurisdiction and certificates documenting approval shall be furnished to Ownerbefore requests for final payment. Allow inspections at any time. Impedance orinterference with inspections shall not be permitted.

1.07 MATERIALS LIST AND SHOP DRAWINGS

A. Shop drawings shall be submitted for all items specified herein and as specifiedunder Section 01300, SUBMITTALS.



B. Within 15 days after award of contract, submit to Owner and Engineer forapproval list of manufacturer's names for proposed material and equipment. Inthe event any item of material or equipment contained in the list fails to complywith specification requirements, such item will be rejected. If prior to expiration of15-day period or any duly authorized extension thereof, failure to submitschedule of acceptable material or equipment covering items occurs, Owner andEngineer will select items and such selection shall be final and binding as acondition of contract. Rejected items shall be resubmitted within 15 days ofreceipt of notice of rejection.

C. After receiving approval of equipment manufacturers and prior to delivery of anymaterial to job site, submit for approval detailed dimensioned shop drawings,together with descriptive specifications, engineering data sheets and catalog cutsshowing construction size, arrangement, operating clearances, performancecharacteristics and capacity of electrical materials, equipment and systems.Each item of equipment proposed shall be a standard catalog product ofapproved manufacturer, unless otherwise noted.

D. Shop drawings, specifications, catalogs, and pamphlets, and other documentssubmitted for approval shall be properly labeled indicating specific service forwhich material or equipment is to be used, section and article number ofspecifications governing, and Contractor's name, name of job, and datesubmitted.

E. Shop drawings, specifications, catalogs, pamphlets and other documentssubmitted for approval describing items shall contain detailed and specificinformation which shall demonstrate fully that the material, equipment or systemconforms to contract documents. Each shop drawing, specification, catalog andpamphlet shall be clearly marked in ink to identify item submitted. Data ofgeneral nature is not acceptable.

F. If material or equipment is installed prior to receipt by Contractor of pertinentshop drawings marked "Approved" or "Approved as Noted," material orequipment shall be removed, and approved material or equipment provided at noextra charge to Owner.

G. Acceptance of shop drawings shall not relieve Contractor from responsibility toprovide labor, material, equipment and systems required by contract documents.Owner and Engineer will not be responsible for errors or omissions on shopdrawings furnished by Contractor, even though such drawings containing errorsor omissions are inadvertently accepted.

H. Owner and Engineer will not act as coordinator between suppliers andsubcontractors. Coordination shall be responsibility of Contractor. See othersections of these specifications for additional detailed requirements for wiringdiagrams, schematic diagrams, interconnection diagrams and similar shopdrawings for systems and equipment.

I. Provide shop drawings for following:

1. Lighting Fixtures2. Safety Switches3. Wiring Devices4. Wire Splicing Kits and Schedule5. Framing Channels6. Wire and Cable



7. Cabinets and Enclosures8. Raceway and Fittings9. Pull Boxes10. Variable Frequency Drives

J. Provide spare parts and tools for electrical equipment indicated. Submit list ofspare parts and tools as part of shop drawing requirements.

K. No materials or equipment shall be released for shipment or installed untilsuitable action has been taken by Owner and Engineer as indicated by stampand signature.

1.08 OPERATING AND MAINTENANCE MANUALS

A. Provide operating and maintenance manuals for all specified equipment and asspecified under Section 01300, SUBMITTALS.

1.09 OPERATING AND MAINTENANCE INSTRUCTIONS

A. Upon completion of work and tests, instruct Owner's representative in operating,adjustment and maintenance of electrical systems and equipment furnished.Provide instruction for duration as specified under Section 01300,SUBMITTALS.


A. Maintain record drawings as specified under Section 01300, SUBMITTALS.

1.11 DRAWINGS

A. Drawings are diagrammatic and indicate general arrangement and manner ofconnections. They do not show all details of construction or exact location ofwork.

B. Carefully examine contract documents and ensure proper fitting of materials andequipment, as indicated.

C. Although location of materials and equipment may be indicated in a certain place,construction may develop conditions that render this location inaccessible orimpractical. In such cases, before fabricating and installing work, call condition toattention of Engineer for further direction. When requested by Engineer detaileddrawing of proposed departure due to field conditions, and their causes, shall besubmitted for approval. Owner shall make all final written decisions as toconditions which require changing of work.

D. Minimal shifting in locations of outlets, before installation, is to be expected andshall be done at no increased cost to Owner.

E. Conflicting points in contract documents shall be called to attention of Ownerprior to execution of work to a point where changes will effect additional cost toOwner.



1.12 WARRANTY

A. Unless otherwise indicated in SPECIAL PROVISIONS Section, materials andequipment provided under this Division shall be free from defects in workmanshipand materials for a period of one year after date of certification of completion andacceptance of work. Correct defects in workmanship, materials and performancewhich appear within warranty period on notice from Owner, without cost toOwner. In default thereof, Owner may have such work done and charge cost ofsame to Contractor.

B. During warranty period, make proper adjustments, calibrations and service toelectrical systems, equipment and apparatus installed and do all work necessaryto ensure efficient and proper functioning of systems and equipment.

C. Warranties shall be strictly adhered to, and Contractor shall be responsible forany service and replacement required in connection with warranty of items.Warranties shall commence after date of certification of completion andacceptance of work.

D. Contractor shall be responsible for electrical systems and related damagespossible and hold harmless Owner, and consultants from malfunctions ofsystems and equipment installed under this contract, follow all applicableFederal, State and Local laws.

E. It is possible that certain areas of building or certain systems will be accepted ata time different than as specified above. Date of acceptance by Owner forbeneficial use of Owner for these building areas or systems will be adjustedaccordingly.

F. During guarantee period, adjust, calibrate and service equipment provided underthis contract.

PART 2 - PRODUCTS

2.01 GENERAL

A. Electrical materials and equipment shall be new, carry U.L. label when suchmaterial, equipment or system are of type or class listed by UnderwritersLaboratories, Inc., and shall be suitable for conditions and duties imposed onthem at site. If U.L. label is not available from manufacturer, when requested orrequired by local authority having jurisdiction, equipment shall be tested by anapproved electrical testing company in accordance with NEC at no additionalcost to Owner. Submit data indicating compliance with standards prior toinstallation. Description, characteristics, and requirements of materials to beused shall be in accordance with qualifying conditions established in followingsections.

B. Component parts of each item of equipment and device shall bearmanufacturer's nameplate, giving name of manufacturer, description, size, type,serial number, model number, and electrical characteristics, in order to facilitatemaintenance or replacement. Nameplate of subcontractor or distributor is notacceptable.

C. In specifying materials, the following general procedures are used:



1. Where material or equipment is specified by name or other identifyinginformation and one name brand only is used, it is considered that use ofthat particular item is essential to project, and Contractor shall baseproposal on cost of that item.

2. Where material or equipment is specified by brand name and otheridentifying information and two or more brand names are given, it isconsidered that any one of brands named will perform as desired, andContractor shall base proposal on one of named brands.

3. Where material or equipment is specified with phrase "...or equivalent..."after a brand name and other identifying information, it is intended thatbrand name used is for purpose of establishing minimum acceptablestandard of quality and performance, and Contractor may base proposalon any item which is in all respects equal to that specified and presentsessentially same appearance, size, operation and performance.

4. Where material is specified as complying with requirements of published"Standard Specification" of trade associations, ANSI, ASTM, andgovernment specifications, Contractor shall base proposal on any itemwhich can be shown to comply in all respects with referred "StandardSpecification."

D. Acceptable materials, equipment and methods:

1. Engineer will determine whether any materials, equipment and methodsoffered for approval as an equal are equal to those specified and will fitspace available.

2. Decision of Engineer on questions of equality is final.3. Provide acceptable material, equipment and methods at no increase in

cost to Owner.

E. Upon receipt of written notice from Engineer, that material, equipment andmethods have been reviewed and accepted ("Approved" or "Approved asNoted"), Contractor may precede with accepted equal material, equipment andmethods, providing Contractor assumes full responsibility for and makes, at nocost to Owner, any change or adjustment in construction that may be required byuse of such materials, equipment or methods including services provided underother divisions. In event of any adverse decisions by Owner or Engineer, noclaim of any sort shall be made or allowed against Owner.

2.02 CONCRETE WORK

A. Unless otherwise indicated, concrete work for electrical equipment foundationsand pads shall conform to requirements of other sections of specifications.

2.03 EQUIPMENT SUPPORTS, FOUNDATIONS AND STANDS

A. Provide supports, foundations and stands required for electrical equipment andprovide and set all necessary anchor bolts.

B. Concrete pads shall not be less than 4 inches high, unless otherwise indicatedand shall extend 2 inches beyond equipment base. Chamfer edges and corners,and finish smooth exposed surfaces. Pads shall rest on rough concrete floorslabs.



C. Where equipment is indicated as floor-mounted, construct stands of structuralsteel sections (or steel pipe and fittings braced and fastened with flanges) boltedto floor.

D. Where equipment is indicated as hung from ceiling or roof construction, providenecessary hanger rods of size and number required by equipment and necessarysupplemental structural steel sections, securely fastened to building construction.

E. Where equipment is indicated to be wall-mounted, provide brackets, constructedof structural steel shapes suitable for application, securely anchored to buildingconstruction.

F. Motor-operated equipment, transformers and other vibrating equipment shall bemounted on rubber-in-shear vibration isolators suitable for application, unlessotherwise specified.

2.04 LABELS AND NAMEPLATES

A. Provide motor starters, safety switches, control equipment, pushbuttons, andswitches with engraved laminated phenolic nameplates (white background withblack letters) with beveled trim. Data and installation shall be approved byEngineer. Provide nameplates with minimum 1/4-inch high etched letters. Forindoor applications, fasten nameplates with screws. For outdoor applications,attach to equipment enclosure with silicone and stainless steel machine screws,washer, and nuts on inside. Labels shall include:

1. EQUIPMENT DESIGNATION2. VOLTAGE3. SERVED FROM (equipment designation)4. CIRCUIT (number), LOCATED (location)

B. Junction boxes and pull boxes, except those directly located at fixture orequipment to which system is connected, shall be identified with 1" high stenciledlettering to indicate voltage and circuiting on which installed.

C. Identify raceways at points not more than 20 feet on center by means of plasticidentification labels. Apply labels within one foot of penetration whereverconduits leave and enter switchboards, panelboards, switchgear, junction boxes,pull boxes and similar items and at each side of penetrations of walls, partitionsand floors. Labels shall indicate system voltage and type of service (i.e., ControlCircuits, Power, Lights). Install labels in accordance with manufacturer'sinstructions, with label sizes to match conduits to which they are applied.

D. Provide wire identification marking on each phase, neutral, and ground wire ateach accessible point along its length (i.e. panelboards, junction boxes, pullboxes, outlet boxes, and other enclosures.) Labels shall indicate circuitnumbers, terminal numbers, and pole numbers of each conductor. Mark wireidentification code on back cover of each pull and junction box to indicate phase,neutral, and ground wires enclosed by box.

E. Wire identification shall be permanent black letters and numerals on whitebackground (printed plastic pressure sensitive strips wrapped around wire, hotstamped PVC sleeves slipped on or split and tied around wire, or otherequivalent methods). Write-on tags are not acceptable.



PART 3 - EXECUTION

3.01 COORDINATION OF WORK

A. Continually check, layout, and superintend installation of work indicated. Provideinformation regarding locations and sizes of chases and openings and beresponsible for accuracy of information. Lay out and superintend installation ofhangers, inserts, sleeves and other work in masonry and concrete in advance ofand during construction, coordinating work of other trades to prevent interferencein location of other equipment.

B. Coordinate exact locations of electrical equipment, outlets, and conduits with allother trades so that there will be no interference with material and equipment byother trades. Where conflicts between trades result, resolve to Owner andEngineer's satisfaction and at no expense to Owner.

C. Examine work of other trades insofar as their work comes into contact with or iscovered by work installed under this specification section. In no case attach to,cover up or finish against any defective work, or install work in a manner whichwill prevent proper installation of work of other trades.

3.02 HANDLING AND STORAGE OF MATERIALS

A. Proper and suitable tools, equipment and appliances for safe and convenienthandling and placing of materials and equipment shall be used. During loading,unloading and placing, care shall be taken in handling equipment and materialsso that no existing equipment and materials are damaged.

B. Electrical material and equipment delivered to job site shall be stored under roofor other approved covering, on pedestals above ground. Enclosures for materialand equipment shall be weatherproof.

C. Materials and equipment, which are damaged or affected as a result of improperhandling or storage, shall be subject to removal at direction of Owner and/orEngineer and replaced with new materials, at no cost to Owner.

3.03 DAMAGE TO OTHER WORK

A. Contractor shall be held responsible for any damage to work already in place dueto work or negligence of workers. Patching and repairing of damaged work shallbe done by trade, which originally installed work at expense of Contractor underthis Division.

3.04 MOUNTING HEIGHTS

A. In general, use mounting heights indicated however, field conditions may dictatechanges. Where these special conditions occur, final mounting height shall bebrought to attention of Engineer for further direction.

3.05 EQUIPMENT CONNECTIONS

A. Equipment requiring electrical service shall be installed and connected inaccordance with approved methods and in accordance with manufacturer'srecommendations.



B. Equipment connections indicated shall be considered diagrammatic. Actualconnections shall be approved for each case and minimized space used.

C. Conduit, outlets, wiring, fittings and accessories for connections to electricalequipment shall be provided. Should equipment of different ratings be furnished,adjust circuit components accordingly, at no expense to Owner, after approval byEngineer. Confirm proper size and location of equipment connections beforefabrication and installation of work.

D. Contractor shall reach an agreement as to limits of responsibility of varioustrades where connecting to outlets provided by others, and where providingoutlets to receive connections by others, so that work and equipment will beprovided with proper services connected and ready for use.

3.06 WORK IN EXISTING AREAS

A. Portions of existing structures may be occupied by Owner during construction,and electrical systems associated with these portions of building shall be kept inoperation as much as possible. Duration of outages shall be kept to minimum,and shall be scheduled and approved in advance by Owner. Provide temporaryconnections, as required, to maintain service.

B. In areas to be renovated, remove entire electrical installation, except asindicated. Remove unused raceways exposed after demolition back to nearestpoint of concealment. Remove unused wiring back to source of voltage.

C. Where existing electrical systems pass through renovated areas to serve otherportions of building, they shall be suitably relocated or modified to avoid conflictwith new work. Existing outlet, junction and pull boxes, and equipment in areasto be renovated and requiring access for service or operation, shall remain"readily accessible" as required by NEC.

D. Information describing existing circuits, systems, devices and equipment is basedon latest available information. Existing branch circuit numbers indicated maynot agree with actual space or pole number of device used to protect branchcircuit. Rearrange connections in panelboards or (as part of RECORDDRAWING documentation) renumber circuits to match actual conditions.

E. Verify exact locations and rating of existing system components in field beforestarting work.

3.07 WATERPROOFING

A. Waterproofing and dampproofing of building shall be held unharmed byinstallation of work under this Division. Wherever any work or conduits under thisDivision pierce waterproofing or dampproofing including outside walls, suchpenetration shall be made only when approved by Owner and pierced surfaceshall be made watertight. Replace waterproofing damaged or destroyed at noexpense to Owner.

3.08 CUTTING, PATCHING AND PAINTING

A. Cutting, patching and painting necessary for installation of electrical work shall bedone under this Division. Any damage done to work already in place shall be



repaired at no cost to Owner. Patching shall be uniform in appearance and shallmatch existing finish and paint.

B. Holes and openings created as a result of demolition work shall be patcheduniformly and shall match existing finish and paint.

3.09 SLEEVES AND PLATES

A. Sleeves required in existing concrete or masonry walls shall be set and securedwith mortar grout and fast drying bitumastic sealant. Caulk annular space ofsleeves with an elastic fire resistant caulking compound to make installation fire,air and water tight.

B. Where watertight sleeves are required, to suit installation on above graderaceway penetrations, provide Link Seal rubber seals, as manufactured byThunderline Corporation or equal, between pipe and sleeves. Where watertightsleeves are required, to suit installation on below grade wall and floor racewaypenetrations, provide OZ/Gedney Type WSK and Type FSK fittings.

3.10 PLACING IN SERVICE

A. At completion of work a thorough test, as indicated, shall be made in presence ofOwner with equipment, machinery and appliances in operation and entireelectrical system proven satisfactory for operation and free from defects.

B. Gather in one place and at one time loose equipment, keys, record drawings,spare parts, etc., to be turned over to Owner. Label items and provide typed listready to be signed by an authorized representative of Owner.


MWRF Final Clarifier Improvements Grounding and BondingCharles County, MD


SECTION 16060

GROUNDING AND BONDING

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Note 16060-11.02 Scope 16060-11.03 Submittals 16060-1

PART 2 - PRODUCTS

2.01 Ground Conductors 16060-1

PART 3 - EXECUTION

3.01 General 16060-13.02 Installation 16060-2


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E:\Charles County\Clarifier\Specs\100% Final Clar\16060.docx August 201816060-1

SECTION 16060


PART 1 - GENERAL

1.01 NOTE

A. The requirements of Section 16010 - ELECTRICAL GENERAL PROVISIONS -shall apply to all work specified under this section.

1.02 SCOPE

A. Provide all labor, materials, equipment and services necessary for the installationof a complete ground system.

B. The grounding system is comprised of a "Green Wire" system which is isolatedfrom the neutral wire system (except at transformers) and serves as anequipment grounding (safety) conductor.

C. Provide ground for service neutral, neutrals of each separately derivedalternating-current system, metallic structures, enclosures, devices, andutilization equipment permanently and effectively in accord with requirements ofthe National Electrical Code, and as shown and required. All grounding andbonding connections shall be solderless. Welding of conduit and fitting will notbe allowed for bonding purposes.

1.03 SUBMITTALS

A. Submit shop drawings, manufacturer's product data, etc., in accordance withprovisions of Section 16010 - ELECTRICAL GENERAL PROVISIONS.Manufacturer's data shall include specifications and installation instructions.Include data substantiating that proposed materials comply with specifiedrequirements.

PART 2 - PRODUCTS

2.01 GROUND CONDUCTORS

A. Provide ground conductors in accordance with provisions of Section 16120 -WIRE, SPLICES AND TERMINATIONS (600V OR LESS).

PART 3 - EXECUTION

3.01 GENERAL

A. Conduits, panels, metal boxes, cabinets, fixtures, outlets and other metalenclosures surrounding or containing electrical equipment, motors or apparatuswith metal frames shall be securely grounded in accordance with the NationalElectrical Code.

B. An equipment ground conductor shall be run with all three-phase branch circuitsas shown in schedules on the drawings; the ground conductor shall beconnected to the ground bus at the control centers and to the motor frame or


E:\Charles County\Clarifier\Specs\100% Final Clar\16060.docx August 201816060-2

equipment frame at the load. The new grounding system shall be provided asshown on the drawings and/or as specified herein.

3.02 INSTALLATION

A. The electrical continuity of all metal raceways shall be insured by means ofproperly installing locknuts, bonding straps or other approved means. Provide aseparate green conductor in all circuits installed in flexible conduit and bond theconductor to the cabinet, outlet box, etc., at each end of the run. Groundconnections shall be made by means of welded or bolted ground clamps orgrounding-type bushings.

B. Equipment grounding conductors shall be provided with green colored insulationin accordance with the National Electrical Code.


MWRF Final Clarifier Improvements Wire, Splices and Terminations (600V or Less)Charles County, MD


SECTION 16120

WIRE, SPLICES AND TERMINATIONS (600V OR LESS)

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Related Documents 16120-11.02 Scope 16120-11.03 Submittals 16120-1

PART 2 - PRODUCTS

2.01 Insulated Single Conductor Cables 16120-12.02 Multiconductor Cable Assemblies 16120-12.03 Termination And Splicing Fittings 16120-22.04 Pulling Compound 16120-2

PART 3 - EXECUTION

3.01 General 16120-23.02 Installation 16120-23.03 Wire Identification 16120-43.04 Splices And Terminations 16120-4



SECTION 16120


PART 1 - GENERAL


A. Requirements of Section 16010 - ELECTRICAL GENERAL PROVISIONS -apply to work specified under this section.

1.02 SCOPE

A. Work includes labor, materials, equipment and services for installation ofcomplete system of conductors for the electrical installation as indicated.

1.03 SUBMITTALS

A. Submit manufacturer's product data in accordance with provisions of Section16010 - ELECTRICAL GENERAL PROVISIONS. Submit detailed sheets of kits,materials, splicing and terminating methods and instructions. Manufacturer'sdata shall include specifications and installation instructions. Include datasubstantiating that proposed materials comply with specified requirements.

PART 2 - PRODUCTS

2.01 INSULATED SINGLE CONDUCTOR CABLES

A. Secondary wiring within buildings shall be soft drawn copper 98% conductivitywith 600 volt insulation, and shall be manufactured in accordance withrequirements of the NEC, UL, ASA, NEMA, and ICEA.

B. Wire and cable shall be delivered to job site in full coils or reels, each bearing atag containing UL approval stamp, name of manufacturer, trade name, code,type of wire, and month and year of manufacture.

C. Conductor insulation shall be NEC type "THWN" or "THHN, adequately colorcoded for identification, unless otherwise indicated. Conductor size shall be asdefined by standard American Wire Gauge (AWG) numbers or circular milswhere indicated.

D. Conductors #8 and larger shall be stranded.

E. Minimum size for power and lighting circuits shall be #12. Minimum size for 120volt control circuits shall be #14.

2.02 MULTICONDUCTOR CABLE ASSEMBLIES

A. Multi-conductor variable frequency drive cable:

1. Conductors:

a. Stranded tinned copper.b. Insulation: 600 volt cross linked polyethylene, UL Type XHHW-

2.



c. Grounding Conductors: Three symmetrical BC grounds.

2. Sheath:

a. UL 1277 Type TC, 90 degrees C.b. Spiral copper tape shields, 100 percent coverage.

3. Outer Jacket: Polyvinyl Chloride (PVC) per UL 1569.4. Manufacturer:

a. Belden Series 29500b. Approved equal

2.03 TERMINATION AND SPLICING FITTINGS

A. Fittings for termination or splicing stranded wire shall be solderless and designedfor stranded wire set screw pressure fittings or indent compression type fittings.Thomas and Betts, Brundy, Square D, or equivalent.

B. Splices (junctions which occur below grade (including those in NEMA 4 junctionboxes)) shall be 3M "Scotch-cast" insulated.

C. Splices in branch circuit and control wiring #10 and smaller shall be made withinsulated spring connectors, Ideal "Wirenuts" or equivalent.

2.04 PULLING COMPOUND

A. Pulling compound shall be UL approved, "Y-ER-EASE", or equivalent. Soap,grease or any substance other than specified shall not be permitted.

PART 3 - EXECUTION

3.01 GENERAL

A. All wire shall be installed in raceways.

B. Multi-conductor variable frequency drive power cable, UL Type XHHW-2 shall beprovided between variable frequency drive and motor.

3.02 INSTALLATION

A. Grounding, neutral, and phase conductors shall be pigtailed for connection toreceptacles so that any receptacle may be disconnected without interruptingconnections to other receptacles on same multiwire branch circuit.

B. Do not install wire in raceways until after concrete work or plastering iscompleted. Raceways, in which moisture has collected, must be swabbed outbefore pulling in wire.

C. Wiring exposed to temperatures higher than 30 degrees Celsius shall haveinsulation properly rated for temperatures it must withstand (i.e., wiring in lightingfixtures or electric heating equipment, unless provided by fixture or equipmentmanufacturer shall be type THHN, AVB, or other).



D. Phase wires shall be color coded. Phase wires #8 AWG and smaller shall becolor coded throughout entire length. Phase wires larger than #8 AWG may becolor coded by applied sleeves or taped at each splice and termination, and atmaximum 3 feet intervals for any accessible segment and within 2 inches of wireterminations. Color coding shall be as follows:

PHASE 208Y/120V 480Y/277VPHASE A BLACK BROWNPHASE B RED ORANGEPHASE C BLUE YELLOWNEUTRAL WHITE GRAYGROUND GREEN GREEN

E. Green colored insulated equipment grounding "Green Wire" conductors shall beprovided for feeders and for branch circuits. "Green Wire" grounding and neutralwires shall be color coded throughout entire length. Provide "Green Wire"grounding conductor, in addition to grounding provided by raceway systemenclosing branch circuit or circuits. Size of "Green Wire" grounding conductorshall conform to NEC requirements. Ground conductor shall interconnectgrounding terminal of each receptacle, lighting fixture or equipment enclosurecontaining circuit and grounding bus or terminal at point of origin of respectivecircuit. "Green Wire" grounding conductor shall be run with each respectivefeeder and branch circuit conductor group and with each multiwire branch circuitconductor group. At each receptacle location, connect "Green Wire" system toreceptacle enclosure using separate pigtail.

F. Branch circuits shall be provided only as single or combined wiring groups, asfollows:

1. One section of raceway shall not enclose more than one branch circuit ormultiwire branch circuit, unless otherwise indicated.

2. Where more than one branch circuit or multiwire branch circuit sharecommon enclosure (i.e., pull box or junction box or wiring trough). Wiringcomprising each branch circuit and multiwire branch circuit shall besecured as group by "ties" or other grouping devices at intervals not toexceed 3 inches, where accessible.

3. Where branch circuits and multiwire branch circuits are routed inwireway, increase wiring size, as required, to comply with deratingrequirements of NEC.

G. Wire sizes for 20 ampere, 120 volt or 277 volt lighting or receptacle branchcircuits shall be based on circuit total lengths (measured horizontally andvertically along path from Panelboard to load), as follows:

Wire 120V to Ground 277V to GroundSize Max Total Length Max Total Length#12 75' or less 150' or less#10 100' 250'#8 over 100' over 250'

1. Where wire size is specifically indicated and voltage drop is inaccordance with NEC, length restrictions noted above do not apply (i.e.,motor branch circuits).

2. Where wire size is increased only to accommodate length relationshipsnoted above, taps (i.e., pigtails to devices) up to 10' long may be madewith #12 at utilization points.



3.03 WIRE IDENTIFICATION

A. Provide wire identification in accordance with Section 16010 - ELECTRICALGENERAL PROVISIONS.

3.04 SPLICES AND TERMINATIONS

A. Screw-on "Wirenut" type fittings shall not be used for connecting stranded wiring,unless strands are twisted for each conductor before installing "Wirenut".

B. Aluminum fittings shall not be used for wire connections.

C. Where stranded wires are terminated in screw pressure connection, approvedfittings and installation methods shall be used to avoid separating strands.

D. No splices or joints will be permitted in either feeders or branches, except atoutlets and accessible junction boxes. Joints in branch-circuit shall bemechanically and electrically secure with solderless connectors as listed by UL,as pressure type, 600-volt rating, compression or indent type. Connectors shallbe insulated by approved preformed type with integral or separate cover, or bymeans of taping with approved plastic or rubber and friction tapes to provideinsulating value equal to that of conductors being joined. In making of splice,connectors shall be brought up securely upon the conductor, ensuringconductors are equally engaged, the insulation is not ruptured, no bare wires areexposed or have "back-off" due to application of pressure and connector will notloosen due to cycling or vibration, in order to insure an efficient splice. Number,size and combinations of conductors permitted by UL, as listed on manufacturer'spackaging of connector, shall be strictly complied.

E. Splice connectors shall be manufactured and installed so that conductorinsulation will not be reduced when conductor is positioned in final location.Tools used to compress fittings shall be type which requires proper compressionbefore tool can be released.

F. Insulating materials for splices and connections such as rubber, friction, glassand synthetic tapes, putties, resins, splice cases, compositions, and othermaterials shall be approved for that particular use, location, voltage, and installedin accordance with manufacturer's recommendations.


MWRF Final Clarifier Improvements RacewaysCharles County, MD


SECTION 16130

RACEWAYS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Related Documents 16130-11.02 Scope 16130-11.03 Related Work Specified Elsewhere 16130-11.04 Submittals 16130-1

PART 2 - PRODUCTS

2.01 General 16130-12.02 Rigid Metal Conduit (RMC) Raceway 16130-12.03 Liquid Tight/Flexible Metal Conduit (LT/FMC) Raceway 16130-22.04 Couplings And Fittings For Steel Raceways 16130-22.05 Conduit Outlet Bodies For Steel Raceways 16130-22.06 Elbows And Offsets 16130-32.07 Miscellaneous 16130-3

PART 3 - EXECUTION

3.01 General 16130-33.02 Raceway Methods 16130-33.03 Installation Requirements 16130-3



SECTION 16130

RACEWAYS

PART 1 - GENERAL



B. Requirements of this section of specification apply to and form part of individualelectrical sections of the specification.

1.02 SCOPE

A. Work includes labor, materials, equipment and services for installation ofcomplete raceway system.

1.03 RELATED WORK SPECIFIED ELSEWHERE

A. Refer to Section 16120 - WIRE, SPLICES AND TERMINATIONS (600V ORLESS)

B. Refer to Section 16190 - FIRE SPREAD PREVENTION

1.04 SUBMITTALS

A. Submit shop drawings and manufacturer's product data, in accordance withprovisions of Section 16010 - ELECTRICAL GENERAL PROVISIONS.Manufacturer's data shall include specifications, installation instructions andgeneral recommendations for each type of raceway required. Include datasubstantiating that proposed materials comply with specified requirements foreach type of raceway.

PART 2 - PRODUCTS

2.01 GENERAL

A. Raceways shall be UL listed and bear the UL label, unless otherwise indicated.

B. Raceways for hazardous locations shall be specifically approved by UL orFactory Mutual, for its intended application.

2.02 RIGID METAL CONDUIT (RMC) RACEWAY

A. RMC raceway shall also be known as galvanized rigid steel raceway (GRS).RMC raceway shall be steel, zinc coated for corrosion protection and shallcomply UL 6, Federal Specification WWC-581 and ANSI Specification C80.1.Threads shall be protected from corrosion as soon as possible after they are cutby plated or painted finish.

B. Polyvinylchloride (PVC) coated RMC raceway shall be steel, hot-dippedgalvanized inside and out prior to application of protective coating. PVC coatedRMC shall comply with UL 6, ETL PVC-001, NEMA, , ANSI Specification C80.1



and shall bear the UL listing mark #E-65583, and ETL PVC-001. Exterior coatingshall be applied with nominal thickness of 40 mils to raceway, which has beentreated with primer before coating is applied. Urethane coating shall be appliedto interior of raceway to nominal thickness of 2 mils. The exterior and interiorcoatings shall be continuous, except for threads, and shall be made inaccordance with NEMA Standards Publication RN1.

2.03 LIQUID TIGHT/FLEXIBLE METAL CONDUIT (LT/FMC) RACEWAY

A. LT/FMC raceway for feeder and branch circuits of general wiring systems shallbe constructed of galvanized steel core with thermoplastic jacket and integralcopper ground wire, and shall comply with UL 360 and Federal SpecificationWWC-566, Type 1. Liquid tight jacket shall conform to NEMA RN1. ProvideAnamet or equivalent.

B. In hazardous areas, LT/FMC shall have stainless steel braid covering withflexible stainless steel inner core and wire duct liner. LT/FMC shall comply withUL 886. Provide Crouse-Hinds Couplings, or equivalent.

2.04 COUPLINGS AND FITTINGS FOR STEEL RACEWAYS

A. Couplings shall be steel finished with coatings inside and outside of zinc orcadmium.

B. Couplings for RMC, except where encased in concrete or in hazardous locations,shall be threaded (solid or split). Where encased in concrete or within masonry,couplings for RMC raceway shall be solid (not split in half or down one side)threaded steel fittings only. In hazardous locations, couplings for RMC racewayshall be solid (not split in half or down one side) threaded steel fittings only.

C. Provide type "A" insulating bushings by OZ/Gedney, or equivalent, on RMCraceway terminations.

D. Box connectors for LT/FMC raceway shall comply with Federal Specification WF406B and shall be liquid tight with insulated throat as manufactured by Sepco, orequivalent. Provide straight or 90 degree connectors suitable for use in itsintended application.

E. Fittings shall be compatible with raceway and box accommodated. Fittings forRMC shall be threaded and shall conform to Federal Specification W-C-408.Fittings for plastic coated raceway shall be of same manufacturer as raceway,and shall conform to same standards. Fittings for LT/FMC shall meet FederalSpecification W-F-406, Type I, Class 3, style as required.

F. Fittings for use in hazardous locations shall conform to UL 886, and shall bespecifically approved by UL or Factory Mutual, as suitable, for its intendedapplication.

G. Expansion fittings for use with RMC raceway shall be type AX or EX byOZ/Gedney, or equivalent. Expansion/deflection fittings for use with RMC shallbe type DX by OZ/Gedney, or equivalent. Type of fitting shall be properly chosenfor type of movement anticipated.

2.05 CONDUIT OUTLET BODIES FOR STEEL RACEWAYS



A. Conduit outlet bodies shall conform to UL 514, Federal Specification W-C-586band ANSI Specifications C80.4 and C33.84.

B. Conduit outlet bodies shall be hot-dipped zinc galvanized iron alloy where usedwith RMC, galvanized steel raceway, and shall have factory applied PVC jacketwhere used with like coated raceway.

C. Conduit outlet bodies for RMC conduit systems shall be provided complete withthreaded hubs, neoprene gaskets and cast covers.

2.06 ELBOWS AND OFFSETS

A. Preformed elbows and offsets shall conform to same standards as respectiveraceway.

2.07 MISCELLANEOUS

A. Cable Supports shall be OZ/Gedney type "S", or equivalent.

B. Wall entrance seals shall consist of hot-dipped galvanized sealing glandassembly capable of providing seal around conduit to withstand 50-foot head ofwater without leakage. Shell of seal shall have at least two cast collars at rightangle to sleeve that is embedded in concrete. Entrance seals shall beOZ/Gedney or equal. Suitable for use with new or existing construction asapplicable.

C. Conduit seals shall be as manufactured by Crouse-Hinds, Appleton, orequivalent.

PART 3 - EXECUTION

3.01 GENERAL

A. Install wiring in raceways, unless otherwise indicated.

B. Provide labeling in accordance with Section 16010 - ELECTRICAL GENERALPROVISIONS

3.02 RACEWAY METHODS

A. Polyvinyl chloride (PVC) coated RMC raceway shall be used throughout, exceptwhere LT/FMC, or raceway is required

B. LT/FMC raceway shall be used:

1. In short lengths not to exceed three (3) feet for connection to motorterminal boxes and vibrating equipment. Where such equipment isexposed to weather in damp or wet locations, LT/FMC raceway shall beemployed.

C. Raceway methods in hazardous locations, as defined, by NEC shall beperformed in strict compliance with NEC for class, division, and group indicated.Boundaries of hazardous locations shall be as indicated, or defined by NEC.

3.03 INSTALLATION REQUIREMENTS



A. Where LT/FMC raceways and associated fittings are not UL approved asgrounding means, raceway shall contain ground wire bonded to boxes.

B. Provide cable supports in conduit raceway risers, as required, by NEC or asindicated.

C. Raceway sizes shall be in accordance with NEC, except as follows:

1. Minimum 3/4".2. Where indicated.

D. Raceways shall be installed exposed.

E. Raceway shall be installed with no interference with other trades. Racewaysshall be supported at interval, as required, by NEC but no greater than 10 feet.Raceway supports shall be in accordance with the following:

1. Exposed raceways shall be run parallel on wall or ceiling, and shallfollow contours of surface to which they are attached. Support racewaysemploying PVC coated steel one-hole pipe clamps securely fastened tosurface to which raceway is attached.

F. No raceway shall pass through beams, unless so indicated by Engineer.Raceway shall be located minimum of 6" from steam and hot water piping.

G. Raceway passing from heated to unheated spaces, conditioned spaces tounconditioned spaces, and exterior spaces shall be suitably sealed by means of"Duxseal" or sealing fittings to prevent accumulation of condensation.

H. Cap raceways immediately after installation to prevent entrance of debris andmoisture.

I. Conduit outlet bodies may be installed in exposed work to facilitate wiringinstallation and, as indicated. They shall not be used where space permits use ofan adequately sized steel pull box.

J. Fireproofing of penetrations of raceways through floors and fire rated walls isspecified under Section 16190 - FIRE SPREAD PREVENTION.

K. Provide expansion fittings or expansion/deflection fittings in each racewaycrossing building expansion joint or as required by installation to accommodateexpansion, contraction or deflection of raceway.

L. After installation of PVC coated raceways touch-up exposed bare metal withmanufacturer's approved touch-up compound.

M. Those installer PVC coated conduit shall be certified by the manufacturer and beable to present a valid, unexpired certified installer card.


MWRF Final Clarifier Improvements Boxes and CabinetsCharles County, MD


SECTION 16131

BOXES AND CABINETS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL


PART 2 - PRODUCTS

2.01 General 16131-12.02 Outlet Boxes 16131-12.03 Pull And Junction Boxes 16131-12.04 Pushbutton Enclosures 16131-2

PART 3 - EXECUTION




SECTION 16131

BOXES AND CABINETS

Part 1 - GENERAL



1.02 SCOPE

A. Work includes labor, materials, equipment and services for installation ofcomplete system of outlet, pull and junction boxes.

1.03 SUBMITTALS

A. Submit shop drawings and manufacturer's product data, in accordance withprovisions of Section 16010 - ELECTRICAL GENERAL PROVISIONS.Manufacturer's data shall include specifications and installation instructions.Include data substantiating that proposed materials comply with specifiedrequirements.

PART 2 - PRODUCTS

2.01 GENERAL

A. Provide suitable box at outlets especially designed to receive type of fixtures anddevices to be mounted thereon.

B. Boxes shall be of type approved for particular purpose intended.

C. Provide box covers to fit outlet box installed.

2.02 OUTLET BOXES

A. Outlet boxes for use with PVC coated RMC shall be PVC coated galvanized castmetal type with tapped hubs for conduit entrance. Covers shall be of PVCcoated galvanized cast metal with rubber gasket. Box bodies and covers shallhave a minimum 40 mil-thick polyvinyl chloride jacket on exterior surfaces.

B. Cast outlet boxes installed in hazardous areas, as defined by NEC, shall be PVCcoated and suitable for Class, Division and Group location as indicated. Outletboxes shall conform to Federal Specification A-A-50563 and UL 886, and shallbear UL label as suitable for intended application.

2.03 PULL AND JUNCTION BOXES

A. Provide junction or pull boxes where indicated, and where required to facilitatewire pulling and connection. Provide labels in accordance with Section 16010 -ELECTRICAL GENERAL PROVISIONS.

B. Pull and junction boxes less than 100 cubic inches shall be as specified for outletboxes.



C. Exterior boxes or boxes exposed to excessive moisture shall be NEMA 4Xstainless steel construction with watertight gasketed covers and externalmounting feet.

D. Pull and junction boxes 100 cubic inches and larger for use with PVC coatedRMC shall be 12-gauge minimum 304 stainless steel. Exterior boxes and boxesexposed to excessive moisture shall be NEMA 4X construction with watertightgasketed covers and external mounting feet.

E. Pull and junction boxes 100 cubic inches and larger installed in hazardous areas,as defined by NEC, shall be suitable for Class, Division and Group as indicated.Boxes shall have neoprene gasket, stainless steel hinges and natural stainlesssteel finish. Pull and junction boxes shall conform to UL 886 and shall bear ULlabel, as suitable for intended application.

F. Drain fittings shall be provided in NEMA 4X boxes. Crouse-Hinds, Killar, orequivalent.

2.04 PUSHBUTTON ENCLOSURES

A. Boxes for pushbutton enclosures shall be as specified for Junction and Pullboxes, except that NEMA 12 and NEMA 4X pushbutton enclosures shall conformto UL 508 and pushbutton enclosures installed in hazardous areas as defined byNEC shall conform to UL 698, and shall bear UL label as suitable for its intendedapplication.

PART 3 - EXECUTION

3.01 GENERAL

A. Boxes shall be sized in accordance with NEC, or as indicated.

3.02 INSTALLATION

A. Each box shall be securely supported at two or more points and two or moresides to prevent movement in all directions.

B. Boxes shall support devices and face plates. Face plates and devices shall notbe used to support boxes.


MWRF Final Clarifier Improvements Wiring DevicesCharles County, MD


SECTION 16140

WIRING DEVICES

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL


PART 2 - PRODUCTS

2.01 General 16140-12.02 Light Switches 16140-12.03 Convenience Receptacles 16140-12.04 Device Plates 16140-22.05 Hazardous Locations 16140-2

PART 3 - EXECUTION

3.01 General 16140-2



SECTION 16140

WIRING DEVICES

PART 1 - GENERAL

1.01 NOTE


1.02 SCOPE

A. The work includes all labor, materials, equipment and services necessary for theinstallation of complete system of wiring devices.

B. Provide wiring devices for each outlet at the location indicated on the drawings.All devices shall be the product of the same manufacturer, unless of a specifiedtype especially approved for the purpose which is not manufactured by themanufacturer selected for most of the other devices.

1.03 SUBMITTALS

A. Submit shop drawings, manufacturer's product data, etc. in accordance withprovisions of Section 16010 - ELECTRICAL GENERAL PROVISIONS.Manufacturer's data shall include specifications and installation instructions.Include data substantiating that proposed materials comply with specifiedrequirements.

PART 2 - PRODUCTS

2.01 GENERAL

A. Devices shall comply with UL, NEMA and IEEE standards.

B. Wiring devices shall be as manufactured by Leviton, Cooper, Pass and Seymour,or Hubbel, or equal unless otherwise noted.

2.02 LIGHT SWITCHES

A. Lighting control switches shall be heavy-duty, specification grade, toggle, quiettype, back and side wired fully enclosed in a composition case and of highestquality in manufacturer's line. Switches shall be rated 120/277 VAC. Terminalscrews shall be suitable for use of up to #10 AWG solid.

B. Switches shall be rated 20 amperes and shall be brown in color, unlessotherwise noted on drawings.

2.03 CONVENIENCE RECEPTACLES

A. Convenience receptacles shall be UL specification grade and shall conform toNEMA WD1. They shall be heavy-duty type, back and side wired with a greenground screw terminal, automatic ground clip, fully enclosed in a compositioncase with a nylon face and have a wraparound bridge for installation strength.



B. Convenience receptacles shall be rated 20 amperes, 125 volts NEMA 5-20R andshall be brown in color, unless otherwise noted.

2.04 DEVICE PLATES

A. Provide device plates for all outlets where devices are installed.

B. Provide weatherproof outlet enclosures on exterior outlets. Weatherproofenclosures shall comply with UL 514C. The enclosure shall consist of agasketed device plate with a hinged gasketed wiring device cover of sufficientdepth to allow full closure with attachment plug(s) in use. The cover shall havecord port(s) capable of permitting appropriate sized electrical cord(s) to passthrough when cover is closed. The safety enclosure shall be of a polycarbonateresin manufactured in accordance with UL 94 HFl. Screws shall be stainlesssteel. Weatherproof device plates Safety Outlet Enclosures manufactured byTayMac, or equivalent.

2.05 HAZARDOUS LOCATIONS

A. Lighting control switches installed in hazardous areas as defined by NEC shall besuitable for the Class, Division and Group as indicated on the drawings.Switches shall conform to UL 894, and shall bear the UL label as suitable for itsintended application. Switch housings shall be stainless steel finish.

B. Receptacles installed in hazardous areas as defined by NEC shall be suitable forthe Class, Division and Group as indicated on the drawings. Receptacles shallconform to UL 1010, and shall bear the UL label as suitable for its intendedapplication. Receptacle housings shall be die-cast copper-free aluminum withfiberglass-reinforced polyester finish and top hinged covers. Provide two (2)matching plugs.

PART 3 - EXECUTION

3.01 GENERAL

A. See Section 16120 - WIRE, SPLICES AND TERMINATIONS - 600V forrequirements regarding wiring for switches and receptacles.


MWRF Final Clarifier Improvements Disconnect SwitchesCharles County, MD


SECTION 16410

DISCONNECT SWITCHES

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL


PART 2 - PRODUCTS

2.01 General 16410-12.02 Safety Switches 16410-1

PART 3 - EXECUTION

3.01 General 16410-2



SECTION 16410

DISCONNECT SWITCHES

PART 1 - GENERAL

1.01 NOTE


1.02 SCOPE

A. The work includes all labor, materials, equipment and services necessary for theinstallation disconnect switches.

B. Provide complete items with all components needed for proper operation.

1.03 SUBMITTALS


PART 2 - PRODUCTS

2.01 GENERAL

A. Switches shall be heavy-duty type and equipped with a cover interlock to preventoperation with cover open. All switches shall be designed to permit padlocking inthe off or open position.

B. Switches located where they are affected by outdoor weather or in damplocations, shall be NEMA 4X and shall have stainless steel enclosures.

C. Switches shall be UL listed, and shall bear the UL label.

2.02 SAFETY SWITCHES

A. Safety switches shall be meet all the applicable requirements of FederalSpecification W-S-865 and shall be horsepower rated in conformance with TableIII.

B. Switches shall be front operated type, cover interlocked with switch. Allnonconductive parts shall be finished, or otherwise protected against corrosion.

C. All switches shall be visible blade, externally operated with all current carryingparts silver or tin plated. All switches shall have provisions for not less than twoexternal padlocks and capable of accepting copper or aluminum cables.

D. Units shall be manufactured by Square D, Cutler-Hammer, G. E., or Siemens orequal.



PART 3 - EXECUTION

3.01 GENERAL

A. Provide as indicated.


MWRF Final Clarifier Improvements Lighting FixturesCharles County, MD


SECTION 16511

LIGHTING FIXTURES

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Note 16511-11.02 Scope 16511-11.03 Quantity 16511-11.04 Mounting Heights 16511-11.05 Locations 16511-11.06 Manufacturers 16511-11.07 Submittals 16511-2

PART 2 - PRODUCTS

2.01 General 16511-22.02 Lamps 16511-22.03 Drivers For LED Modules 16511-22.04 Fixture Types 16511-3

PART 3 - EXECUTION

3.01 General 16511-33.02 Installation 16511-33.03 Tests 16511-3



SECTION 16511

LIGHTING FIXTURES

PART 1 - GENERAL

1.01 NOTE


1.02 SCOPE

A. The work includes all labor, materials, equipment and services necessary for theinstallation of all exterior lighting fixtures as indicated on the drawings.

B. Furnish and install a complete lighting fixture for each lighting fixture symbolshown on the drawings, of the type and quality described on the drawings.Fixtures shall be installed complete with lamps of the wattage indicated, sockets,housing, ballast, shades, diffusers, supports, and other components and shall bewired ready for operation.

1.03 QUANTITY

A. Fixture types are indicated by a letter designation and the various types aredescribed on the drawings.


A. Fixture mounting heights are indicated on the drawings.

B. Mounting height for fixtures shall be considered to be the distance between thefloor and/or finished grade and the lowest element of the fixtures.

1.05 LOCATIONS

A. Fixtures shall be located approximately where indicated on drawings,symmetrical within the space and symmetrical with each other, except whereotherwise indicated. If construction conditions, structural, mechanical orelectrical, disclose that fixtures cannot be installed as shown on the drawings,this shall immediately be brought to the Engineer's attention.

1.06 MANUFACTURERS

A. The lighting design was based on the fixture type and manufacturers specifiedand only the fixture indicated by catalog number has been approved. If theContractor elects to substitute a fixture for that specified, he shall submit allrequired shop drawing data for the proposed fixture and specified fixture forevaluation. The substituted fixture shall be equal, or better in quality to thatspecified and will be evaluated on the following comparisons:

1. Appearance2. Performance including Distribution (ITL/ETL photometrics, VCP data and

similar items), Efficiency and Utilization, and Spacing Ratios.



3. Construction including Gauge of Materials, Quality of Materials, Finishesof Materials, Workmanship, Rigidity and Installation Ease.

4. Maintenance requirements including Hinging and Latching, Cleaning,Ballasts replacement and Relamping.

1.07 SUBMITTALS


B. The Contractor shall include in his preliminary "List of Materials" hereinbeforespecified, a complete listing of lighting fixtures showing manufacturer, type,model and/or series for acceptance for use on this project.

C. After satisfactory review of the lighting fixture list, the Contractor shall submitadditional complete descriptive data for each lighting fixture. Data shall consistof construction details, operating characteristics, VCP data, ITL/ETLphotometrics, ballast data, efficiency data, as necessary, for complete evaluationof compliance with contract documents. For substituted product, providephotometric data in electronic IES format on CD or USB storage device; PDFformat is unacceptable.

PART 2 - PRODUCTS

2.01 GENERAL

A. All exterior hardware such as screws, nuts, washers, anchor bolts and similaritems shall be stainless steel.

B. Finish of fixtures shall manufacturer's standard, unless otherwise specified.

C. All exposed unpainted aluminum parts of lighting fixtures shall have naturalanodized or color anodized finish.

D. All material shall be of the best grade of approved manufacturing standards andall workmanship shall be first class, such as shall produce fixtures of a highcharacter and fine finish of the type specified.

E. All fixtures shall be prewired at the factory and shall be wired for polarizedsystem with one wire in each fixture to be distinctly marked for its entire length.All wire shall bear the UL label.

2.02 LAMPS

A. Each fixture shall be completely equipped with lamps of the size, type, wattage,and shape indicated and specified. Lumen output and life of lamps shall be in allrespects equivalent to those specified. All lamps shall be proper voltage for thebuilding. Exact voltage shall be verified before ordering lamps.

2.03 DRIVERS FOR LED MODULES



A. Comply with ANSI C136.22 and C62.41.2 and UL 1012. Include the followingfeatures unless otherwise indicated:

1. Drivers: Class 1 LED type, 120-277V, 60Hz.2. Minimum Starting Temperature: Minus 22 deg F (Minus 30 deg C).3. Maximum Ambient Operating Temperature: 104 deg F (40 deg C).4. Fuses: One in each ungrounded power supply conductor. Voltage and

current ratings as recommended by manufacturer.

B. Driver: Electronic type, 0.90 power factor (minimum), total harmonic distortion(THD) 20% (maximum) with 9kV surge suppression.

2.04 FIXTURE TYPES

A. The various kinds of lighting fixtures which shall be provided by the Contractorare designated by type letter and specified on the contract drawings.

PART 3 - EXECUTION

3.01 GENERAL

A. All fixtures shall be fully protected until final acceptance.

B. Before final acceptance of the lighting installation, the Contractor shall cleanlenses, trims, and reflecting surfaces of all lighting fixtures. Replace burnt-outlamps, excessively noisy ballasts and any defective portions of fixtures.

3.02 INSTALLATION

A. Light fixtures shall be mounted as close to the locations shown on the drawingsas possible.

3.03 TESTS

A. Furnish all equipment and instruments necessary for testing the complete fixtureinstallation. The tests shall demonstrate to the satisfaction of the Owner thefollowing:

1. That all fixtures are free from short circuits and unspecified grounds.2. That all fixtures operate satisfactorily and quietly.


MWRF Final Clarifier Improvements Electrical Field Acceptance TestsCharles County, MD


SECTION 16960

ELECTRICAL FIELD ACCEPTANCE TESTS


PART 1 - GENERAL

1.01 Scope 16960-11.02 Quality Assurance 16960-21.03 Submittals 16960-3

PART 2 - PRODUCTS

2.01 Test Equipment 16960-4

PART 3 - EXECUTION

3.01 Insulation Resistance Tests 16960-43.02 Ground Resistance 16960-53.03 Conductor Connections 16960-53.04 Operating Tests 16960-53.05 Finally 16960-6



SECTION 16960


PART 1 - GENERAL

1.01 SCOPE

A. After the electrical installation is complete, it shall be thoroughly tested by theContractor to demonstrate that the entire system is in proper working order and inaccordance with the Drawings and Specifications:

1. Tests are in addition to individual tests at the Manufacturer's plant, andmay not substitute for same.

2. Tests are also intended to provide, ensure, or determine the following:

a. Provide initial acceptance tests and recorded data that can beused as a bench mark for future routine maintenance and troubleshooting by plant operating forces.

b. Ensure a successful start-up with a minimum of last minuteinterruptions and problems.

c. Determine the suitability of the equipment and systems forenergization and placing into operating service.

d. Provide assurance that each system component is not onlyinstalled satisfactorily but performs, and will continue to perform,its function in the system with reasonable reliability throughout thelife of the plant.

B. The costs of all tests shall be the responsibility of the Contractor, including theexpenses of retests because of defects and failure of equipment to meetSpecifications:

1. Wiring and equipment which is defective, or which fails to meetSpecifications, shall be replaced by the Contractor, unless specificapproval for repair is given by the Engineer. The Contractor shall bear thecosts for either action.

2. Also, the Contractor shall provide sufficient personnel to assist operatingforces in any additional checks they may require for acceptance, start-up,run-in and placing the equipment and systems into continuous service.

C. Make necessary openings in circuits for testing instruments and place and connectall instruments, equipment, and devices, necessary for the tests. Upon completionof tests, remove instruments and instrument connections and restore all circuits topermanent condition.

D. Contractor shall notify the Engineer, in writing, at least seven calendar days beforethe test is to take place. The tests shall be conducted in the presence of theOwner/Engineer and shall not be started without his permission.

E. Contractor shall supply electric current necessary for the tests.

F. Contractor shall place and connect all instruments and equipment needed for thetest, remove same and restore circuits when tests are complete.



G. All testing and checkout work shall be performed with fully qualified personnelskilled in the particular tests being conducted. This is essential for obtaining andproperly evaluating data while the tests are in progress and for insuring thatimportant facts and questionable data are reported.

H. The Contractor shall ensure that all testing and checkout work is conducted in asafe manner. Special safety precautions such as the following to be utilized whereappropriate:

1. Locking and tagging procedures.2. Barricades.3. De-energization and/or isolation of equipment prior to testing.4. Review of procedures with the Owner's safety personnel.5. Erection of warning signs.6. Stationing of guards and watchmen.7. Maintenance of voice communications.8. Personnel orientation.

I. The sequence of all tests and checks shall be such that the equipment can beenergized immediately after the completion of the applicable tests.

J. Tests are in addition to all other tests specified under other sections and shall becoordinated by the Contractor.


A. Codes and Standards

1. All inspections and tests shall be in accordance with the followingapplicable codes and standards latest revisions except as providedotherwise herein.

a. All Standard, Special and Supplemental Conditions of theContract

b. NEMA: National Electrical Manufacturer's Associationc. ASTM: American Society for Testing and Materialsd. IEEE: Institute of Electrical and Electronic Engineerse. NETA: International Electrical Testing Associationf. ANSI: American National Standards Institute

1) ANSI C2: National Electrical Safety Code2) ANSI Z244-1: American National Standards for

Personnel Protection

g. State and Local Codes and Ordinancesh. ICEA: Insulated Cable Engineers Associationi. AEIC: Association of Edison Illuminating Companiesj. Occupational Safety and Health Administration

1) OSHA Part 1910; Subpart S, 1910.3082) OSHA Part 1926; Subpart V, 1926.950 through 1926.960

k. National Fire Protection Association, Batterymarch Park, Quincy,MA 02169:



1) ANSI/NFPA 70B: Electrical Equipment Maintenance2) NFPA 70E: Electrical Safety Requirements for Employer

Work places3) ANSI/NFPA 70: National Electric Code4) ANSI/NFPA 78: Lightning Protection Code5) ANSI/NFPA 101: Life Safety Code

2. All inspections and tests shall utilize the following references:

a. Project Design Specificationsb. Project Design Drawingsc. Manufacturer's instruction manuals applicable to each particular

apparatus

B. Coordination:

1. Coordinate activities, and cooperate with others on project, to ensure thatsystems are energized when required, loads applied, and otherrequirements of Sections are carried out on timely, coordinated basis.

2. Other Sections of specifications require services of one or moremanufacturer's representatives, to ensure that equipment supplied hasbeen installed properly and adjusted to proper working order. Adviserepresentative of all applicable tests in this Section, so that work will becoordinated, and tests combined where feasible.

3. It is important that equipment warranties or guarantees not be voided bythe Contractor's testing and checkout work. The checks and tests willnormally be supplemental to and compatible with the manufacturer'sinstallation instruction leaflets and literature. Where deviations areapparent, the manufacturer's review shall be obtained prior to testing.Reasonable cooperation to be extended to permit witnessing by themanufacturer's representative if so requested. Where any questionablerepairs, modifications, significant adjustments, tests or checks are to bemade, the Contractor shall contact the Owner's Representative todetermine if the work should be performed by or with the manufacturer'srepresentative.

C. Conditions:

1. No testing of any kind shall be done without written approval or thepresence of the Owner. The Contractor shall obtain from the manufactureral data required to verify calibrations, to set and test equipment provided.

2. The Contractor shall notify, in writing, the Owner at least 72 hours prior totests. The notice shall identify the test and the time that the test will beperformed.

3. Tests shall be performed by an independent testing agency approved bythe Owner. Each two-technician field test crew shall include at least onetest technician who provides current certification as such by either NETAor NICET.

1.03 SUBMITTALS

A. General:

1. Contractor shall submit to the Engineer four copies of instrumentcalibration curves, plotted test results, and all measurements and data.



2. All inspections, tests, and calibrations to be reported in writing. Therecorded data form shall have the signatures of the persons conductingthe tests and authorized witnesses. The data shall be designed to serveas the test and inspection checklist for inspection requirements. The testand checkout data shall also include any data taken prior to theadjustments, repairs, drying out, or similar work prior to final testing andacceptance. "As-found" and "as-left" test data shall be recorded andreported in writing.

3. Copies of Test Data Reports shall be incorporated in each of the relatedService Manuals. The Data Reports shall include those items ofequipment contained in the Service Manual. Reports shall be separatedby a divider labeled "Electrical Field Acceptance Tests". Reports shallcontain data for all power conductors and controls includinginstrumentation conductors and devices for static and dynamic equipmentin the Service Manual. In addition, Operating Tests of the equipment shallbe included in this section of the Service Manual.

PART 2 - PRODUCTS

2.01 TEST EQUIPMENT

A. Contractor shall provide all necessary test equipment, calibrated for these specifictests by a recognized, independent test laboratory. The calibration must havebeen performed no more that a year from acceptance test.

1. Test equipment shall include, but not be limited to, the following:

a. Three-phase wattmeter suitable for motors up to 200 hp.b. Ammeters (0-600 A).c. Voltmeters (0-600 V).d. Megger (500 V) to be used for equipment 600 volts or less.e. Clamp-on ammeters (0-300 A).f. Current transformers (as required).g. Potential transformers (as required).h. AC-DC volt-ohm millimeter.i. Turns ratio test set.

PART 3 - EXECUTION

3.01 INSULATION RESISTANCE TESTS

A. Cables

1. Insulation resistance tests shall be performed in accordance with NETA(International Electrical Testing Association, Inc.) Standard, CableInsulation Resistance Test, between conductors and conductors toground.

2. Each circuit tested shall have an insulation resistance between conductorsand between each conductor and ground of not less than the following:

a. Cable 600 V and below shall have a minimum insulationresistance of 10 megohms.



b. In no case shall a phase conductor have an insulation resistance40 percent less than the phase conductor with the highestinsulation resistance.

B. Motors

1. An insulation resistance test shall be performed in accordance with NETAStandard, Motor Insulation Resistance Test.

3.02 GROUND RESISTANCE

A. The grounding system shall be tested for continuity of connection and forresistance to flow of current through ground connections:

B. The ground resistance of conduits, equipment cases, and supporting frames shallbe near that for the system as a whole.

C. Measurement shall be made with a vibroground or ground megger, using the threepoinr method (fall of potential.

3.03 CONDUCTOR CONNECTIONS:

A. Make up no connections at motors and motor control centers permanently untilcorrect phase rotation of all equipment is determined. Install and insulate theseconnections temporarily, if necessary, while determining proper rotation. Makepermanent connections after proper rotation has been established and subsequentto completion of insulation resistance and dielectric tests.

3.04 OPERATING TESTS

A. Test all mechanical and electrical interlocks:

1. Mechanical interlocks shall be examined to ensure the interlock is free tooperate and that bearing surfaces are free to perform their intendedfunction.

2. Check for correct adjustment of primary disconnect mechanisms in plug-in units. Shall be mechanically interlocked with the door to ensure that thedoor is held closed with primary disconnect in the ON position.

3. Check for provisions for padlock mechanisms on disconnect operatingmechanisms.

4. Check motor starters equipped with a defeater mechanism to ensure thatthey can be operated to release the door interlock with the disconnectdevice in the ON position.

5. Check all electrical interlocks for loose wiring, proper mechanicalalignment and operation. Also inspect all contact surfaces to ensure theyare clean and not pitted.

B. Circuit Breaker Operation:

1. Molded case 600 volt circuit breakers of the time-delay instantaneous typeare to be checked for possible damage during shipment or storage by:

a. Inspecting the breaker visually for physical damage.b. Performing several mechanical ON-OFF operations.



c. Circuit continuity check on each pole with the circuit breaker in theclosed position.

d. Three hundred (300) percent of breaker rated continuous currentapplied to each pole to determine that the circuit breaker will tripon an overload.

e. At least one test shall be made in the range of element of the tripdevice.

C. Test all remote control stations for operation:

1. A functional test shall be performed for all remote pushbutton stations toensure their proper operation.

2. Control stations tested under actual operating conditions shall performtheir intended function.

D. Check motor operation:

1. The motor shall be run for at least four hours as close to full load aspossible.

2. Motor alignment, wiring capacity, speed and operation shall be checked toverify compliance with Specifications.

E. Contractor to demonstrate complete operation and functions of all equipment anddevices not specifically included herein:

1. A functional test shall be performed on all equipment including all powerwiring, motor starters, controls and control wiring to ensure that allequipment is operating properly and that the system is operating asdesigned.

3.05 FINALLY

A. All defects found in new equipment shall be repaired at once and the testsreconducted at the Contractor's expense.

B. Results of the above tests shall show the equipment and wiring meets therequirements of this specification before final acceptance. Should any of the abovetests indicate defects in materials or workmanship, the faulty installation shall berepaired or replaced at once, and the tests reconducted at the Contractor'sexpense.

C. All circuit breakers, etc., found defective shall be replaced.


Charles County, Maryland

MWRF Secondary ClarifierImprovements

Project No. UN XXXX

August 2018100% Submission

NOT FOR CONSTRUCTION

Submitted By


MWRF SECONDARY CLARIFIER IMPROVEMENTSPROJECT NO. UN XXXX

TABLE OF CONTENTS

N:\14369-000\Engineering\Specs\100% Second Clar\100 Toc.docx August 2018TC - 1

Table of Contents TC-1

DIVISION 1 GENERAL REQUIREMENTS

Section 01106 Construction, Coordination and Sequencing01200 Project Meetings01300 Submittals01315 CPM Schedules and Reports01400 Quality Control01510 Temporary Utilities01600 Materials and Equipment01650 Start-Up01710 Cleaning Up01800 Temporary Facilities and Environmental Protection

DIVISION 2 GEOTECHNICAL (NOT USED)

DIVISION 3 STRUCTURAL

Section 03200 Concrete Reinforcement*03300 Cast-In-Place Concrete Structures *03310 Portland Cement Concrete *03310 Amendment – Submittals, Concrete Mix, and Inspection and

Testing of Concrete Work03600 Non-Shrink Grouts and Mortars *03600 Amendment – Swept in Grout for Clarifier Bottom

DIVISION 4 MASONRY (NOT USED)

DIVISION 5 METALS

Section 05500 Miscellaneous Metals *

DIVISION 6 WOOD AND PLASTICS (NOT USED)

DIVISION 7 THERMAL AND MOISTURE (NOT USED)

DIVISION 8 DOORS AND WINDOWS (NOT USED)

DIVISION 9 FINISHES


MWRF SECONDARY CLARIFIER IMPROVEMENTSPROJECT NO. UN XXXX

TABLE OF CONTENTS

N:\14369-000\Engineering\Specs\100% Second Clar\100 Toc.docx August 2018TC - 2

Section 09960 High-Performance Coatings

DIVISION 10 SPECIALTIES (NOT USED)

DIVISION 11 EQUIPMENT

Section 11226 Secondary Clarifiers

DIVISION 12 SPECIAL FURNISHINGS (NOT USED)

DIVISION 13 SPECIAL CONSTRUCTION (NOT USED)

DIVISION 14 CONVEYING SYSTEMS (NOT USED)

DIVISION 15 MECHANICAL (NOT USED)

DIVISION 16 ELECTRICAL

Section 16010 Electrical General Provisions16060 Grounding and Bonding16120 Wire, Splices and Terminations (600V or less)16130 Raceways16131 Boxes and Cabinets16140 Wiring Devices16190 Fire Spread Prevention16410 Disconnect Switches16511 Lighting Fixtures16960 Electrical Field Acceptance Tests

DIVISION 17 INSTRUMENTATION AND CONTROLS

Section *17000 General Instrumentation and Control*17441 Control System Hardware

* - Refer to County Standard Specifications

MWRF Secondary Clarifier Improvements Construction, Coordination, and SequencingCharles County, MD

N:\14369-000\Engineering\Specs\100% Second Clar\01106.doc August 2018

01106 - i

SECTION 01106

CONSTRUCTION, COORDINATION, AND SEQUENCING

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 General Requirements 01106-11.02 Facility Shutdowns 01106-11.03 Coordination 01106-3





01106 - ii

This page intentionally left blank..



01106 - 1

SECTION 01106

CONSTRUCTION, COORDINATION AND SEQUENCING

PART 1 - GENERAL


A. Keep of interferences with the operations of the existing facilities to a minimum.

B. All operations of valves and gates required to perform the work shall be done by theOwner. Inform the Owner or his designated agent in writing at least 72 hours, orlonger where specified, in advance of the need to operate valves or gates or otheractions which could affect facility operations.

C. Test all new facilities to achieve reliable, continuous facilities operation, all newfacilities shall be tested and in operating condition before final tie-ins are made whichconnect new facilities to existing facilities.

D. Provide detailed drawings to the Engineer that show all the temporary connections orfacilities.

E. When removing a facility from service, contractor shall allow the facility to drainnaturally or be pumped to its lowest level and pressure washed. All remaining fluidsare to be removed. Solids shall be disposed of off-site by the Contractor at hisexpense. Disposal of these solids must be in accordance with federal, state andlocal codes.

F. There may be other Contractors working on site at the same time. When theContractor becomes aware of circumstances whereby the Project shall adverselyaffect other projects on site or vice versa, immediately notify the Engineer andindicate what actions, are needed to coordinate the work of the various projects.

G. No extra payment shall be made for any labor, materials, tools, equipment ortemporary facilities required during the construction of facilities. All costs thereforeare considered to be included in the bid price of the Proposal.

1.02 FACILITY SHUTDOWNS

A. One Clarifier shall be removed from service and shutdown for the time necessary toperform the work, testing and commissioning.

B. Complete facility shutdown without supplemental services to maintain facilityoperation are not permitted. Individual facilities may be taken out of service forreplacement but must be complete and put back into service before another back-upfacility or other piece of equipment is removed from service. Temporary shutdownperiods (periods without supplemental services to maintain facility operation) to bedetermined by the Owner.



01106 - 2

C. Scheduled shut down, temporary shutdown and coordination of supplementalservices to maintain facility operation shall be mutually agreed upon by the Ownerand the Contractor, with the Engineer's approval.

D. In order to reduce each shutdown period to a minimum, the Contractor shall, prior toeach shutdown request, expedite completion of the work to the fullest extent.Complete all necessary preparatory work including testing and shall have adequatepersonnel available to keep each shutdown period to a minimum. All equipment andmaterials required to complete the work during a shutdown period shall be on the jobsite before the shutdown is commenced.

E. Carefully coordinate all work and schedules and shall provide the Owner andEngineer with 21 calendar days minimum written notice prior to each shutdownperiod, unless otherwise approved by the Owner.

F. Prior to each shutdown period, submit to the Engineer and Owner in writing, detaileddescriptions and schedules of the proposed construction procedures during theshutdown period. Information submitted to the Engineer shall include a completeinventory of materials and equipment needed to perform the work. No shutdown of afacility or operation will be permitted until the Engineer has reviewed and approved,in writing, the proposed construction plans and procedures.

G. If, during any temporary shutdown periods, the work performed is not satisfactory, asplanned, or not completed with the maximum time allocated, the Owner may orderthe Contractor to place the facility or operation back in service and reschedule thework, or he may order the work required to place the facility or operation back inservice to be performed with other forces.

H. During scheduled shut downs the Contractor shall be responsible for all damagesand costs thereof due to negligence and failure to maintain supplemental services.

1.03 COORDINATION

A. Contractor and Owner Personnel

1. The Contractor is responsible for the proper coordination of the work toprevent interference with the operation of the various facilities and to assurethat the Owner is made aware in advance of proposed construction activities.

2. There shall be no basis for claim for extra compensation or contract timeextension due to delay caused by the Contractor's failure to give propernotice for requested shutdowns or to advise the Owner of proposedconstruction activities that in the judgement of the Owner will interfere withoperation of the various facilities.

3. When an emergency condition arise at the various facilities, the Owner hasthe authority to require the Contractor and to suspend their operationstemporarily until conditions return to normal, without claim for extra cost orcontract time extension by the Contractor.



01106 - 3

4. Where the work of any subcontractor will be installed in close proximity towork of other subcontractors, or where there is evidence that the work of anysubcontractor will interfere with the work of other subcontractors, theContractor shall work out space allocations to make a satisfactoryadjustment. If so ordered by the Engineer, the Contractor shall preparecomposite working drawings and sections at a suitable scale, clearly showinghow work is to be installed in relation to the work of others. If the Contractorpermits any work to be installed before coordinating with the varioussubcontractors; or so as to cause interference with work of othersubcontractors, he shall make necessary changes in the work to correct thecondition without extra cost to the Owner.

5. The Contractor shall arrange that each subcontractor determines thelocation, size and arrangement of all chases and openings and shallestablish clearances in concealed spaces required for the proper installationof its work and shall see that such are provided.

PART 2 - PRODUCTS (Not Used)PART 3 - EXECUTION (Not Used)

END OF SECTION


MWRF Secondary Clarifier Improvements Project MeetingsCharles County, MD


01200 - i

SECTION 01200

PROJECT MEETINGS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 Description 01200-11.02 Preconstruction Meeting 01200-11.03 Progress Meetings 01200-3





01200 - ii




01200 - 1

SECTION 01200

PROJECT MEETINGS

PART 1 - GENERAL

1.01 DESCRIPTION

A. The Engineer will schedule and administer a preconstruction meeting,periodic progress meetings, and specially called meetings throughout theprogress of the work.

1. Prepare agenda for meetings

2. Make physical arrangements for meetings

3. Preside at meetings

B. Representatives of Contractor, subcontractors and suppliers attendingmeetings shall be qualified and authorized to act on behalf of the entity eachrepresents.

C. The Contractor shall attend meetings to ascertain that work is expeditedconsistent with Contract Documents and construction schedules.

1.02 PRECONSTRUCTION MEETING

A. A preconstruction meeting will be scheduled before the Contractor startswork at the site.

B. Location: A site designated by the Engineer.

C. Attendance:

1. Owner's representative

2. Engineer and his professional consultants

3. Contractor's project manager and superintendent

4. Major subcontractors

5. Major suppliers

6. Utilities representative(s)

7. Others as appropriate

D. Suggested Agenda:



01200 - 2

1. Distribution and discussion of:

a. List of major subcontractors and suppliers

b. Projected construction schedules

2. Critical work sequencing.

3. Major equipment deliveries and priorities.

4. Detouring of traffic and street access.

5. Project coordination:

6. Designation and responsible personnel.

7. Procedures and processing of:

a. Field decisions

b. Proposal requests

c. Submittals

d. Change Orders

e. Applications for payment

8. Adequacy of distribution of Contract Documents.

9. Procedures for maintaining Record Documents.

10. Use of premises:

a. Office, work and storage areas.

b. Owners’ requirements.

11. Construction facilities, controls and construction aids.

12. Temporary utilities.

13. Housekeeping procedures.

14. Check of required Bond and Insurance certifications.

15. Liquidated damages.

16. Check of required Permits.

17. Laboratory testing of material requirements.



01200 - 3

18. Inventory of material stored on site.

19. Wage determination compliance and records, work hours.

20. MBE/WBE fair share objective, affirmative action,non-discrimination policies, if applicable.

21. Communication lines and contact persons, including address andtelephone number.

22. Manufacturers' operation and maintenance manuals, and operationand maintenance training.

23. Regulatory agency inspections.

24. Progress agency inspections.

25. Jobsite safety.

26. Work Hours

1.03 PROGRESS MEETINGS

A. Regular periodic meetings will be held every 30 days or less. The firstmeeting will be scheduled 30 days after the preconstruction meeting or 30days or less after the date of Notice to Proceed.

B. Meetings will be scheduled as required by progress of the work.

C. Location of the meetings: Contractor Field Office.D. Attendance:

1. Engineer and his professional consultants as needed.

2. Contractor.

3. Owner's representative.

4. Subcontractors as appropriate to the agenda.

5. Suppliers as appropriate to the agenda.

6. Others as appropriate.

E. Suggested Agenda:

1. Review and approval of minutes of previous meeting.

2. Review of work progress since previous meeting.



01200 - 4

3. Field observations, problems, conflicts.

4. Problems which impede Construction Schedule.

5. Review of off-site fabrication, delivery schedules.

6. Corrective measures and procedures to regain projected schedule.

7. Revisions to Construction Schedule.

8. Progress schedule during succeeding work period.

9. Coordination of schedules.

10. Review submittal schedules; expedite as required.

11. Maintenance of quality standards.

12. Pending changes and substitutions.

13. Review proposed changes for:

a. Effect on Construction Schedule and on completion date.

b. Effect on other contracts of the Project.

F. The Contractor shall attend progress meetings and shall study previousmeeting minutes and current agenda items, in order to be prepared todiscuss pertinent topics such as deliveries of materials and equipment,progress of the work, etc.

G. The Contractor shall provide a current shop drawing submittal log at eachprogress meeting in accordance with Section 01300.

H. The Contractor shall provide a current schedule at each progress meeting.



END OF SECTION



01200 - 5



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SECTION 01300

SUBMITTALS

PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 General 01300-11.02 Types of Submittals 01300-11.03 Procedures for Submittals 01300-21.04 Contractor’s Responsibility 01300-21.05 Engineer’s Review of Submittals 01300-21.06 Shop Drawings 01300-31.07 Samples 01300-21.08 Manufacturer’s List 01300-31.09 Operating and Maintenance Instructional

Periods 01300-41.10 Operation and Maintenance Manuals for

Equipment and Products 01300-41.11 Manufacturer’s Certificates 01300-41.12 Mix Designs 01300-51.13 Design Calculations 01300-51.14 Mill Test Reports 01300-51.15 Record Drawings (General) 01300-61.16 Record Shop Drawings 01300-61.17 Record Drawings 01300-61.18 Requests for Information 01300-61.19 Professional Engineer Certification 01300-6


N:\14369-000\Engineering\Specs\100% Second Clar\01300.doc August 201801300 - ii




SECTION 01300

SUBMITTALS

PART 1 - GENERAL

1.01 GENERAL

A. Refer to County Standards GP-5 for additional details on Submittals.

B. The Contractor shall submit to the Engineer for review and approval suchShop Drawings, test reports and product data on materials and equipment(hereinafter in this article called data), and material samples (hereinafter inthis article called samples) as are required for the proper control of work,including but not limited to those Shop Drawings product data and samplesfor materials and equipment specified elsewhere in the Specifications and inthe Contract Drawings.

C. Within thirty (30) days after the effective date of the Agreement, theContractor shall submit to the Engineer a complete list of preliminary data onitems for which Shop Drawings are to be submitted. Included in this list shallbe the names of all proposed manufacturers furnishing specified items.Review of this list by the Engineer shall in no way be expressed or implied torelieve the Contractor from submitting complete Shop Drawings andproviding materials, equipment, etc., fully in accordance with theSpecifications. The procedure is required in order to expedite final review ofShop Drawings.

D. The Contractor is to maintain an accurate updated submittal log and willbring this log to each scheduled progress meeting with the County,Developer and the Engineer. This log should include the following items:

1. Submittal-Description and Number assigned.2. Date to Engineer.3. Date returned to Contractor (from Engineer and or County).4. Status of Submittal (Approved, Approved as Noted, Revise and

Return, Rejected).5. Date of Resubmittal and Return (as applicable).6. Date material release (for fabrication).7. Projected date of fabrication.8. Projected date of delivery to site.9. Status of O&M manuals submittal.10. Specification Section.11. Drawings Sheet Number.

1.02 TYPES OF SUBMITTALS

A. Shop Drawings for manufactured or fabricated items, schedules, diagramsand like material prepared specially for this project.


N:\14369-000\Engineering\Specs\100% Second Clar\01300.doc August 201801300 - 2

B. Product Data which include pre-printed material, manufacturer's descriptiveliterature, illustrations, catalog data, performance charts and the like intendedto identify a part of the work but not necessarily prepared exclusively for thisContract.

C. Samples which include physical examples of products, materials, assembliesor workmanship which are identical to a portion of the work and whichestablish standards for materials, workmanship, or appearance of thefinished work.

D. Administrative data to include information required to support theadministrative requirements of the contract as called for in the specifications.

E. Requests for information & potential change orders.

1.03 PROCEDURE FOR SUBMITTALS


1.04 CONTRACTOR'S RESPONSIBILITY

A. It is the duty of the Contractor to check all drawings, data and samplesprepared by or for him before submitting them to the Engineer for review.Each and every copy of the Drawings and data shall bear the Contractor'sstamp showing that they have been checked. Shop Drawings submitted tothe Engineer without the Contractor's stamp will be returned to the Contractorfor conformance with this requirement. Shop Drawings shall indicate anydeviations in the submittal from requirements of the Contract Documents.

B. Refer to County Standards GP-5 for additional details.

1.05 ENGINEER'S REVIEW OF SUBMITTALS


1.06 SHOP DRAWINGS

Refer to County Standards GP-5 for shop drawing details.

1.07 SAMPLES

A. The Contractor shall furnish, for the approval of the Engineer, samplesrequired by the Contract Documents or requested by the Engineer. Samplesshall be delivered to the Engineer as specified or directed. The Contractorshall prepay all shipping charges on samples. Materials or equipment forwhich samples are required shall not be used in work until approved by theEngineer.



B. Samples shall be sufficient size and quantity to clearly illustrate:

1. Functional characteristics of the product, with integrally related partsand attachment devices.

2. Full range of color, texture and pattern.3. A minimum of three samples of each item shall be submitted.

C. Each sample shall have a label indicating:

1. Name of project2. Name of Contractor and Subcontractor3. Material or Equipment Represented4. Place of Origin5. Name of Producer and Brand (if any)4. Location of Project5. County PGM Number

(Samples of finished materials shall have additional marking that will identifythem under the finished schedules).

D. The Contractor shall prepare a transmittal letter in triplicate for eachshipment of samples containing the information required in SECTION 01300Paragraph 1.04. Contractor shall enclose a copy of this letter with theshipment and send a copy of this letter to the Engineer. Approval of a sampleshall be only for the characteristics or use named in such approval and shallnot be construed to change or modify any Contract requirements.

1.08 MANUFACTURER'S LIST

Within thirty (30) days after receipt of a Notice to Proceed, and before ordering anyequipment or materials, the Contractor shall submit to the Engineer for approval acomplete list of proposed manufacturers and fabricators for all materials andequipment to be used in this Contract. The purpose of this submittal is to allow theEngineer to predetermine the acceptability of proposed suppliers before issuance ofpurchase orders by the Contractor. Submission and acceptance of themanufacturers' list shall neither relieve the Contractor from submitting detailed ShopDrawings and product data for all materials and equipment nor shall it constitute prioracceptance of any specific item of equipment prior to submittal of Shop Drawings.After submission and acceptance of the manufacturers' list, the Contractor shall notdeviate from the named suppliers and manufacturers without written approval fromthe Engineer. Substitutions for named manufacturers/vendors for materials andequipment must be approved by the Owner. This approval does not constituteapproval or acceptance of the equipment that the Contractor submits.



1.09 OPERATING AND MAINTENANCE INSTRUCTIONAL PERIODS

Contractor shall furnish qualified personnel to instruct the County personnel in theproper operation and maintenance of equipment and systems provided in thisContract. Such instructional periods shall be for the duration of time specified inspecification sections.

1.10 OPERATION AND MAINTENANCE MANUALS FOR EQUIPMENT ANDPRODUCTS

A. General:

The Contractor shall furnish Operation and Maintenance Manuals forall products and equipment provided under this Contract that shallconform to County Standards GP-5.

1.11 MANUFACTURER'S CERTIFICATES

A. General:

1. As specified in the various sections of these Specifications, theContractor shall furnish the Engineer with manufacturer's certificatesstating that the equipment and products have been installed undereither the continuous or periodic supervision of the manufacturer'sfield representative, that they have been adjusted and initiallyoperated in the presence of the manufacturer's field representative,and that they are operating in accordance with the specifiedrequirements, to the manufacturer's satisfaction. A copy of allmanufacturers certificates shall be bound in each Operation andMaintenance Manual.

2. A certificate submitted for equipment, a product, or component of aproduct, shall indicate test results proving that the equipment,product, or component of a product, meet the requirements of theContract Documents. An affidavit consisting of a sworn statement byan official of the company manufacturing the equipment or productindicating that the information on the certificate is true and accurateshall accompany the certificate.

3. A statement originating from the Contractor, or any of hissubcontractors, suppliers, or any other agent which merely indicatesthat a particular item of equipment, product, or component of aproduct, meets the requirements of the Contract Documents shall notbe considered a certificate. Any such submittal made in this mannerwill not be approved and the corresponding equipment, product, orcomponent of a product, shall not be finally accepted.

B. Manufacturer's Representative:



1. The definition of "manufacturer's representative" shall be as follows:a representative from the manufacturer's plant, familiar with theactual problems of manufacturing, installing and operating theparticular equipment or product and with enough years of experiencein this field to determine the successful operation of the equipment orproduct. Sales representatives or agents of the manufacturers shallnot be acceptable.

2. As related to his obtaining the manufacturer's certificates, theContractor shall include in this contract price the cost of furnishingcompetent and experienced manufacturer's representatives whoshall represent the manufacturer on equipment and productsfurnished and installed under this Contract, to assist the Contractor toinstall, adjust, start up, and test the equipment and products inconformity with the Contract Documents. After the equipment andproducts have been operated through the trial period for each phaseof construction and before being put into permanent service anddemonstrating the equipment to the County, such manufacturer'srepresentatives shall make all adjustments and tests required toprovide that such equipment and products are in proper andsatisfactory operational condition. This shall be performed prior toand separate from operational demonstration and instruction.

C. Engineer's Responsibility

The Engineer will review with reasonable promptness, within 30 days, allsubmittals with respect to the Contract Documents and will indicate aqualified approval, an approval as noted or a revise and return notation. TheEngineer will return all submittals found incomplete without a review.

1.12 MIX DESIGNS

Mix designs shall be submitted for concrete, grout, and bituminous paving. Mixdesign shall indicate all materials used in the product and their respective relativequantities. In any one mix design all quantities shall be expressed either by weightor volume insofar as it is practical to do so. The Contractor's attention is directed toDIVISION 3 of these Specifications for proportioning and testing requirements ofconcrete.

1.13 DESIGN CALCULATIONS

Design calculations shall be presented in a neat, legible manner and shall bear thestamp and signature of a registered professional engineer, registered in the Statethat the Work in this Contract is being performed.

1.14 MILL TEST REPORTS

Mill test reports shall be submitted for structural steel and concrete reinforcementsteel. Reports shall be on the mill's standard report form.



1.15 RECORD DRAWINGS (GENERAL)


1.16 RECORD SHOP DRAWINGS




1.18 REQUESTS FOR INFORMATION

The Contractor shall submit to the Engineer all RFI’s sufficiently in advance ofconstruction requirements to provide no less than thirty (30) calendar days forreviewing and appropriate action from the time the Engineer receives them. Thecontractor shall provide sketches, drawing references and any other informationnecessary for the Engineer to provide a timely response.

1.19 PROFESSIONAL ENGINEER CERTIFICATION

A. Submittals that require a stamp and signature of a Maryland registeredprofessional engineer shall be accompanied with the following MarylandProfessional Certification.

“I hereby certify that these documents were prepared or approved by me,and that I am a duly licensed professional engineer under the laws of theState of Maryland,License No._____________________Expiration Date:__________________

END OF SECTION


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MWRF Secondary Clarifier Improvements CPM Schedules and ReportsCharles County, MD

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SECTION 01315


PARAGRAPH INDEX

Page No.

PART 1 - GENERAL

1.01 General Requirements 01315-11.02 Post Award Activities 01315-31.03 Construction Schedule 01315-41.04 Schedule of Values 01315-41.05 Construction Schedule Content 01315-51.06 Updating of Construction Schedule/

Progress Reports 01315-61.07 Recovery Schedule 01315-71.08 Schedule Revisions 01315-81.09 Float Time 01315-91.10 CPM Personnel 01315-9




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SECTION 01315


PART 1 - GENERAL


A. The Work under this Contract shall be planned, scheduled, executed,reported and accomplished using the Critical Path Method (hereinafterreferred to as CPM), in calendar days, unless otherwise specifically providedin the Contract Documents.

B. The primary objectives of the CPM scheduling requirements are: (1) to insureadequate planning and execution of the Work by Contractor; (2) to assistOwner in evaluating progress of the Work; (3) to provide for optimumcoordination by the Contractor of his trades, Subcontracts and Suppliers, andof his work with the work or services provided by separate contractors; (4) topermit the timely prediction or detection of events or occurrences which mayaffect the timely prosecution of the Work; and (5) to provide a mechanism ortool for use by the Owner and Contractor in determining and monitoring anyactions of the Contractor which may be required in order to comply withrequirements of the Contract Documents relating to the completion of thevarious portions of the Work by the Milestone Dates specified in the ContractDocuments.

C. Contractor is responsible for determining the sequence of activities, the timeestimates of the detailed construction activities and the means, methods,techniques and procedures to be employed. The Construction Scheduleshall represent the Contractor's best judgment of how he will prosecute theWork in compliance with the Contract requirements. Contractor shall ensurethat the Construction Schedule is current and accurate and is properly andtimely monitored, updated and revised as Project conditions and the ContractDocuments may require.

D. Contractor shall consult with his principal Subcontractors and Suppliersrelating to the preparation of his construction plan and ConstructionSchedule. Principal Subcontractors shall receive copies of those portions ofContractor's Construction Schedule which relates to their work and shall becontinually advised of any updates or revisions to the Construction Scheduleas the Work progresses. When Contractor submits his ConstructionSchedule or makes any proposed updates or revisions to such Schedule, itwill be assumed by Owner that the Contractor has consulted with and hasconcurrence of his principal Subcontractors and Suppliers. Contractor shallbe solely responsible for ensuring that all Subcontractors and Supplierscomply with the requirements of the Construction Schedule for their portionsof the Work.

E. Contractor will provide the basic data relating to activities, durations andsequences as part of the Construction Schedule. This data shall reflect theContractor's actual construction plan for the Project, and shall fully complywith all requirements of the Contract Documents.