ADDENDUM NO. 4 Page 1 of 4

PROJECT INFORMATION: HART HIGH SCHOOL INFRASTRUCTURE – PHASE 1 AND DEMOLITION Wm. S. Hart Union High School District Bid Package: HA17-03 DSA Application 03-115032; File 19-H28 Addendum Dated: April 17, 2017 NOTICE TO CONTRACTORS FIGURING THIS WORK: You are hereby notified of the following changes in the plans and specifications that shall take precedence over anything to the contrary therein.

CHANGES TO THE PROJECT MANUAL

Item #1: CLARIFICATION: Addendum #2 has been designated to Phase II of this project. Addendum #3 has been designated to the future building portion of this project. This bid phase currently includes Addendum #1 and Addendum #4. Addendum # 2 and #3 are not required to be acknowledged on the Prime Contractor’s Proposal (FE 10).

Item #2: To Notice Inviting Bids

A. REVISE license requirements as follows.

Item #3: To Bid Package HA17-03A, Demolition & Removal: A. ADD new work scope items to read as follows:

ll) Salvage of any plaques or monument will need to be included and turned

over to the Construction Manager as demo occurs. mm) Provide all labor to adjust temporary fencing provided by other as required

to perform your work scope. While in possession of work area it is this Packages responsibility to ensure temporary fencing is erect and safe at end of each work day while onsite.

Package # Scope of Work License HA17-03A Demolition & Removal C-21 or A or B

HA17-03B Underground Site Utilities & Plumbing A or C-36

HA17-03C AC Paving & Concrete C-12 and C-08

or B or A HA17-03D Landscape & Irrigation C-27 or A

ADDENDUM NO. 4

ADDENDUM NO. 4 Page 2 of 4

nn) This Prime Contractor to include an allowance amount of $15,000.00 for potential unforeseen condition occurring in hardscape/paving , landscape or underground areas due to heavy construction activities during construction. The contractor is to verify any damage with the construction manager before any work is performed. This allowance shall be listed in the Schedule of Values. This allowance amount is to be used as directed and approved by the District or Construction Manager and is not to be used to fulfill obligations under this contract. All costs used against this allowance must be agreed to by the Construction Manager before work is started. All unused portions of this allowance amount shall be credited back to the owner in the form of a deductive change order at 100% of the remaining value. This allowance shall be included in the base bid.

Item #4: To Bid Package HA17-03B, Underground Site Utilities & Plumbing:

A. ADD the following to work scope items as follows:

jjj) Provide shut-down/decommissioning of the fire alarm system in the 7 modular classrooms prior to demo/removal. Provide any Electrical Reprogramming as shown on the drawings.

kkk) This Prime package to include all concrete slabs, piping supports, guard

post and post mounted signs to provide complete backflow preventers, PRV stations, fire hydrants, gate valve caps, etc.

lll) Provide all labor to adjust temporary fencing provided by others as required

to perform your work scope. While in possession of work area it is this Packages responsibility to ensure temporary fencing is erect and safe at end of each work day while onsite.

Item #5: To Bid Package HA17-03C, AC Paving & Concrete:

A. ADD new work scope items as follows:

qq) Allowance: This Prime Contractor to include an allowance amount of $10,000.00 for potential repair of hardscape due to heavy construction activities during trenching and backfill. The contractor is to verify any damage with the construction manager before any work is performed. This allowance shall be listed in the Schedule of Values. This allowance amount is to be used as directed and approved by the District or Construction Manager and is not to be used to fulfill obligations under this contract. All costs used against this allowance must be agreed to by the Construction Manager before work is started. All unused portions of this allowance amount shall be credited back to the owner in the form of a deductive change order at 100% of the remaining value. This allowance shall be included in the base bid.

ADDENDUM NO. 4 Page 3 of 4

rr) This package will be responsible to reinstall any monuments and plaques that are to be removed. This Prime Contractor to provide material data sheets for masonry and brick materials needed to replace existing items.

ss) Provide natural gray concrete with a medium broom finish at all locations

of concrete replacement

B. REVISE work scope items as follows:

v) Contractor to provide trench plates where needed while in possession of trench work area.

w) Provide all labor to adjust temporary fencing provided by others as required

to perform your work scope. While in possession of work area it is this Packages responsibility to ensure temporary fencing is erect and safe at end of each work day while onsite.

C. DELETE work scope item l).

Item #6: To Bid Package HA17-03D, Landscape & Irrigation:

A. ADD new work scope items to read as follows:

uu) This Prime package to include all concrete for slabs, piping supports, guard post, post mounted signs and thrust blocks to provide complete system.

vv) This Prime Contractor to include an allowance amount of $5,000.00 for

potential repair of landscape or irrigation due to heavy construction activities during demo, trenching and backfill. The contractor is to verify any damage with the construction manager before any work is performed. This allowance shall be listed in the Schedule of Values. This allowance amount is to be used as directed and approved by the District or Construction Manager and is not to be used to fulfill obligations under this contract. All costs used against this allowance must be agreed to by the Construction Manager before work is started. All unused portions of this allowance amount shall be credited back to the owner in the form of a deductive change order at 100% of the remaining value. This allowance shall be included in the base bid.

ww) Provide all labor to adjust temporary fencing provided by other as required

to perform your work scope. While in possession of work area it is this Packages responsibility to ensure temporary fencing is erect and safe at end of each work day while onsite.

ADDENDUM NO. 4 Page 4 of 4

CHANGES TO THE DRAWINGS

Item #7: REMOVE & REPLACE Pothole Location of Existing Utilities plan, attached herein.

Item #8: REMOVE & REPLACE HHS Infrastructure-Phase 1 & Demo Site Map, attached herein.

PRE-BID QUESTION & ANSWERS

Item #9: ADD the Pre-Bid Question and Response Log, attached herein.

END OF ADDENDUM NO. 4 ITEMS

ATTACHMENTS: Pothole Location of Existing Utilities plan HHS Infrastructure – Phase 1 & Demo Site Map (for reference only) Pre-Bid RFI Question and Answer Log

SCALE IN FEET

030' 30'15' 60'

SCALE: 1" = 30'

1+

00

8+00

11

+0

0

2+

00

3+

00

4+00

5+006+00

9+00

10+00

12

+0

0

7+00

LEGEND

POTHOLE LOCATION OF EXISTING UTILITIES

P

P

P

P

P

P

P

P

P

P

ST

A 4

+0

0.0

0

IR

RIG

AT

IO

N

ST

A 4

+5

0.1

9

42

-IN

CH

S

TO

RM

D

RA

IN

ST

A 4

+8

5.5

6

ST

OR

M D

RA

IN

C

RO

SS

IN

G

ST

A 5

+2

4.1

0

VA

RIO

US

U

TIL

IT

IE

S

ST

A 7

+0

5.1

7

EL

EC

TR

IC

AL

L

IN

E

ST

A 6

+2

8.9

5

VA

RIO

US

U

TIL

IT

IE

S

ST

A 8

+1

2.6

0

WA

TE

R L

IN

E

ST

A 8

+4

0.5

0

DR

AIN

L

IN

E

ST

A 9

+6

4.6

9

EL

EC

TR

IC

AL

L

IN

E

ANTELOPE VALLEY OFFICE:

1035 West Lancaster BoulevardLancaster, California 93534

661.949.0771 FAX 661.949.2843E-Mail: fm-lancaster@flewelling-moody.com

HEADQUARTERS OFFICE:

815 Colorado Blvd, Suite 200Los Angeles, CA 90041

323.543.8300 FAX 323.543.8198E-Mail: fm-pasadena@flewelling-moody.com

WILLIAM S. HART HIGH SCHOOL

INFRASTRUCTURE - PHASE 2

2715

PHOENIX CIVIL ENGINEERING, INC.

Q-5 Q-6

R1

L

K

J

M

K-7

K-8

K-9

M-7

M-8

R2 R3

J-5

J-6

PQ

D

ÒÛ

ÉØ

ßÔ

Ô ß

ÊÛ

ò

ØßÎÌ Ø×ÙØ ÍÝØÑÑÔ ×ÒÚÎßÍÌÎËÝÌËÎÛ ó ÐØßÍÛ ï ú ÜÛÓÑÔ×Ì×ÑÒ

д»¿­» ®»º»®»²½» Ú´»©»´´·²¹ ú Ó±±¼§ ݱ²­¬®«½¬·±² Ü®¿©·²¹­ º±® ¿´´ ©±®µ ¬± ¬¿µ»

Type

Lundgren Management WSHUHSD-Hart HS 2 Story Clsm&Infrast

Job No: 1107-1Project No: 03-115032

Pre-Bid Request and Answer LogDate: 4/17/2017Page:Page: 1 of 21 of 2

To From Number Issue Title Status Dated Responded RequiredAnswerRequest

Asphalt Paving to follow plans and specification.Paragraph CC states for asphalt to be installed in two lifts with a top coatinstalled near the completion phase. Please confirm that the ac pavementcan be placed in one lift or if 2 lifts are required said lifts can be done thesame day.

PRFI LM BRA 00016 A/C Paving layers NEW 4/14/2017 4/21/2017

1A- Correct, base bid must include preserve for potential resale by District.1B- Refer to Alternate #1 in the bid documents for Demo and Removal only.

On the Removal Site Plan Note #1 It states to remove structure in itsentirety and to preserve the portable structure for potential resale by district.Are we preserving these or demolishing portables?

PRFI LM NDC 00001 Removal Site Plan, Demolition Work NEW 4/14/2017 4/21/2017

Contractors currently prequalified with Wm. S. Hart Union High SchoolDistrict are posted on the District's website at the following link:http://www.hartdistrict.org/apps/pages/notice-inviting-prequalifications.Contractors who submitted for prequalification through the most recent April1-10 prequalification period were notified by the District if approved asqualified.

Can The District provide a list of pre-approved MEP Contractors?

PRFI LM NDC 00002 Demolition Work scope Summary NEW 4/14/2017 4/17/2017 4/21/2017

Yes, per the contract documents.Will fingerprinting actually be required as stated at the job walk?

PRFI LM NDC 00003 HA17-03A -Work Scope Summary NEW 4/14/2017 4/21/2017

Items related to the trench areas Package HA17-03B will perform.Items in the portable/modular area Package HA17-03A will perform.

Will U?G Utility Package Contractor be performing the electrical equipmentsalvage and be performing the electrical safe off and electrical, plumbingand mechanical cutting/capping/potholing related to the trench andportables demolition areas?

PRFI LM NDC 00004 HA17-03A Work Scope Areas NEW 4/14/2017 4/21/2017

5A-No only their work spoils and debris.5B-No clean-up and confirm conditions of trench area prior to other Primepackages acceptance.

Is the Prime Contractor for (Bid Package # HA17-03A Demolition)responsible for disposal ofspoils and other debris produced resulting from the work in the other bidpackages? If so can youprovide quantities of spoils and debris to be disposed of? Additionallyplease clarify if the BidPackage # HA17-03A Demolition Prime will be responsible for cleaning upand washing theentire Trench work site area after U/G Utility Package andIrrigation/Landscape packages arecompleted.

PRFI LM NDC 00005 Spoils & disposal HA17-03A NEW 4/14/2017 4/21/2017

Package HA17-03A to remove only.Please clarify will the Demolition Bid Package will be reinstalling anyasphalt or concrete orlandscaping including rubberized track or will these materials be replacedby the U/G utility andIrrigation/Landscaping bid package contractors?“It makes sense to have the Utility and Irrigation Packages perform thereinstallation work as theywill already be performing similar work onsite and it avoids having multiplebid packagecontractors performing similar work in the same areas that may impact theschedule “

PRFI LM NDC 00006 HA17-03A Scope Clarification NEW 4/14/2017 4/21/2017

Temporary construction fencing will be supplied by the district. It is eachbid package's responsibility to follow OSHA requirements to secure thearea.

The plans do not specifically identify the isolation measures required for thetrench work area. Pleaseclarify for the trench work portion of this project if Orange Temporary Fence.will be required is 4’ thecorrect height or will a taller fence be required. Who will be required toinstall this?If the demolition package is responsible for installation, Who will assumeresponsibility for damage andmaintenance of the fence after the pavements are removed and thedemolition is completed and other bidpackage contractors are performing their scopes of work and theDemolition Prime is no longer workingin the area?

PRFI LM NDC 00007 Fence Requirements NEW 4/14/2017 4/21/2017

Package HA17-03BPlease confirm who will be responsible for the (9) Fire system signsproduction and installation?

PRFI LM NDC 00008 Fire Signs responsiblity NEW 4/14/2017 4/21/2017

Yes, while area is in this Prime's possession . Safe conditions required forfoot traffic.

On Plan C1.01 Demolition Note #7 States - Provide access to Bldg Mduring construction. Is theDemolition Package Prime responsible for this and if so what is required?

PRFI LM NDC 00009 Bldg M access NEW 4/14/2017 4/21/2017

Expedition Report R_REQUEST_01

Type

Lundgren Management WSHUHSD-Hart HS 2 Story Clsm&Infrast

Job No: 1107-1Project No: 03-115032

Pre-Bid Request and Answer LogDate: 4/17/2017Page:Page: 2 of 22 of 2

To From Number Issue Title Status Dated Responded RequiredAnswerRequest

Package HA17-03A will need to provide plates as needed till other PrimePackage accepts area.

After the Demolition Package Prime saw cuts and removes the asphalt and/ or concrete pavement forthe trench please confirm that no trench plate or other safety measures willbe required by the DemolitionPackage Prime with regard to the trench.

PRFI LM NDC 00010 Trench Plate requirements NEW 4/14/2017 4/21/2017

Yes, It is each Bid Packages responsibility to achieve civil and drawingsrequirements. Layout will need to be accurate and true.

Will a licensed Surveyor be required for the layout of the trench sawcutlines.

PRFI LM NDC 00011 Surveyor Requirements NEW 4/14/2017 4/21/2017

Yes, As Exhibit H Drawing indicates.Please confirm only Leveling the area within the limits marked on theRemoval Site Plan where theportables were removed is the requirement and no other import or export orgrading operations in this willbe required by the Demolition Package Prime

PRFI LM NDC 00012 Site Plan requirements NEW 4/14/2017 4/21/2017

N/A refer to Asbestos Survey Report for the T Portables Bldgs.Regarding the Asbestos Removal, For some of the work Unit Prices arerequired Are these quantitiesof the materials provided in the surveys for the unit priced work thequantities we will be removing orwill these quantities change as it a effects the unit price?

PRFI LM NDC 00013 Asbestos Removal NEW 4/14/2017 4/21/2017

14A- Correct14B- It is package HA17-03A duty to confirm areas with CM prior to otherPrimes acceptance.

The scope requirements for the Demolition Package contractor to beresponsible for damage toremaining asphalt and concrete resulting from our work. After thedemolition the other packagecontractors will be working in and around the trenches and at this point anydamage to the asphalt andconcrete will have been caused from others how will this be tracked toavoid responsibility conflicts withregard to the repair of damaged areas.

PRFI LM NDC 00014 Scope Requirements for Damage NEW 4/14/2017 4/21/2017

Fence for the Portable area will be provided by others. Potholing etc. perExhibit H drawings applies.

The Site Removal Plan for portable building removal shows a fence layouthowever I did not see anygate within the layout I am assuming this is the location where the shakerplates will be placed. It alsoaffects the cost of the fence work in this area. Please provide furtherinformation as to if the fence goes inafter demolition and if not please provide information on the gates that willneed to be installed andlocation of the gate including size and type of gate required

PRFI LM NDC 00015 Fence locations NEW 4/14/2017 4/21/2017

Expedition Report R_REQUEST_01