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TABLE OF CONTENTS LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATOIN

Section 01 10 10 Bid Alternate Section 01 10 30 Inspection Requirements Section 01 10 40 Fencing and Protection Section 32 13 13 Concrete Work Section 32 18 13 Synthetic Turf Installation Section 32 84 23 Irrigation Section 32 92 00 Field Turf Renovation Section 32 92 10 Field Turf Planting Section 32 92 19 Field Turf Hydroseeding

LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION BID ALTERNATE NO. 1 SECTION 01 10 10 - 1

SECTION 01 10 10 BID ALTERNATE NO. 1

PART 1 GENERAL 1.01 SECTION INCLUDES

This section includes requirements for the bid alternate work. Bid Alternate No. 1 includes the removal of the existing 3” Febco backflow device protecting in place all existing steel flanged fittings and spools. Replace with identical 3” Febco backflow device to prevent any modifications to the existing flanged steel fittings or spools.

1.02 SUBMITTALS

Submit a total price for the bid alternate work on the space provided on the bid form. The price shall include the total cost for all labor and materials required to complete the work.

1.03 RELATED SECTIONS

Section 32 84 23 – Irrigation Systems

END OF SECTION 01 10 10

LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION INSPECTION REQUIREMENTS SECTION 01 10 30 - 1

SECTION 01 10 30 INSPECTION REQUIREMENTS


This section includes General Requirements for the On-Site Inspections required for the Monte Vista Middle School Landscape Renovation Project.

1.02 NOTIFICATIONS

The Contractor shall notify the District forty-eight (48) hours in advance for all required on-site observations. The final on-site observation shall require seven (7) days advance notice.

1.03 SUBMITTALS The Contractor shall submit, for approval, a complete work schedule indicating tentative dates for on-site observations and approvals required.

1.04 RECORD DRAWINGS

Record Drawings shall be current and present at the time of on-site observations and shall be updated on a weekly basis.

1.05 LANDSCAPE RENOVATION ON-SITE OBSERVATIONS

A. Following is a list of required District inspections at various stages of the work. Other times may be determined at the discretion of the District and the Contractor is required to comply: 1. Job Start Meeting – to be scheduled by the District. 2. Temporary fence layout – location and connections to existing fence. 3. Concrete work – Subgrade preparation, form work and steel placement,

mix design, concrete pour and finish. 4. Synthetic Turf Installation – Site layout, subgrade preparation, edge

restraint installation, base installation, shock pad installation, synthetic turf installation.

5. Field Turf Renovation – Completion of thatching, finish grade and sand leveling, final mowing and preparation for hydroseeding.

6. Field Turf Planting Preparation – Existing area layout, soil preparation and fine grading and preparation for hydroseeding.

7. Field Turf Hydroseeding – Material invoice approval, coverage approval.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FENCING AND PROTECTION SECTION 01 10 40 - 1

SECTION 01 10 40 FENCING AND PROTECTION


This section includes requirements for Temporary Fencing and Protection of the work area as delineated on the drawings.

1.02 SUBMITTALS

Submit for approval, all catalog cuts and or specification sheets for all fencing products. Submit to the District, for approval, a fence layout that will protect the entire work area.

1.03 QUALITY ASSURANCE

Fencing shall be installed by a qualified fence company with experience in the installation of temporary fencing.

PART 2 PRODUCTS 2.01 TEMPORARY FENCE FABRIC

Temporary fence shall be 5 feet high, orange, polyethylene, site barrier fencing, UV stabilized, with 2½” x ¾” mesh, “Beacon Plus” as manufactured by Tenax, or equal.

2.02 POST & TIES

Post shall be orange painted metal, 0.125, 7 feet, “T” bar post. Ties shall be “Zip Ties” 8” black UV protected.

PART 3 EXECUTION 3.01 FENCE LAYOUT

Contractor shall submit to the District, for approval, a schematic fence layout showing the location of fence panels and method of attachment of panels and post. This plan must be approved by the District prior to start of the work.

LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FENCING AND PROTECTION SECTION 01 10 40 - 2

3.02 FENCE INSTALLATION

A. Install fencing and post so that no damage occurs to the existing underground conduits or paving. Immediately repair all damage to the existing conditions that may occur as a result of the fence installation. Set post two (2) feet into ground at a spacing that support the fabric in a vertical position. Securely attach the fabric to the post with plastic zip ties.

B. If fencing panels have a post with a horizontal support frame, make sure they are

visually apparent to prevent any trip hazard. C. Install temporary fencing as necessary to completely enclose the newly

hydroseeded lawn areas. Temporary fence location must be approved by the District prior to installation. Maintain temporary fencing until the District authorizes removal.

3.03 FENCE REPAIR

Immediately repair any damage to the fencing that may occur.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION CONCRETE WORK SECTION 32 13 13 - 1

SECTION 32 13 13 CONCRETE WORK


This section includes General Requirements for the Concrete Edge Restraint around the synthetic turf area.


For concrete finishing, use only trained and experienced concrete finishers.

1.03 SUBMITTALS A. Mix design shall be submitted to the District Inspector for approval prior to pour. The

mix design shall show the mix identification number and the applicable proportions, weights, and quantities of Portland cement, aggregate, water, and admixtures. The mix design submittal shall also include the size and source of aggregate, the type and source of Portland cement, the branch and designation of admixtures, and the type of construction for which the concrete is used.

B. Submit manufacturer’s specifications and catalog cut sheets on all specified materials

required for the concrete work

PART 2 PRODUCTS 2.01 CONCRETE

A. Concrete for curbing shall be hardrock with a minimum compressive strength at 28

days of f 'c = 3,000 PSI and conform to ASTM C-94.

B. Cement: ASTM C-150, Type I or II, low alkali. C. Aggregate: ASTM C-33, non-reactive, 1 inch maximum. D. Slump: Maximum slump - 4 inches.

2.02 CONCRETE FINISH

Concrete curbs shall be medium broom finish. 2.03 REINFORCING STEEL

A. All reinforcing bars shall be free of rust, grease, mill scale or any material which might

affect its bond to concrete. All bar bends shall be made cold.


B. Reinforcing steel for Concrete Work shall be deformed and shall conform to ASTM A-615, Grade 60. No. 3 bars may be grade 40. All reinforcing steel shall be positioned as indicated on Drawings.

PART 3 EXECUTION 3.01 SURFACE CONDITIONS

A. Take adequate precautions for mixing, placing, finishing, curing, and protecting

concrete during unfavorable weather conditions. B. Prior to all work of this Section, carefully inspect the installed work of all other trades

and verify that all such work is complete to the point where this installation may properly commence.

C. All concrete shall be properly consolidated during placement. All reinforcing steel

and embedded items shall be securely tied in place to prevent displacement during concrete placement. Support reinforcement on blocks.

D. Verify that concrete may be placed to the lines and elevations indicated on the

Drawings, with all required clearance from reinforcement. E. Concrete curbing shall be placed on compacted subgrade that is firm and stable. The

District Inspector must approve the formwork and subgrade prior to the pour.

3.02 PREPARATION A. Remove all wood scraps and debris from the areas in which concrete will be placed. B. Thoroughly clean the areas to ensure proper placement and bonding of concrete. C. Thoroughly wet the forms or oil them; remove all standing water. D. Thoroughly clean all transporting and handling equipment. E. Compact subgrade to 95% relative compaction per ASTM D-1557.

3.03 PLACING CONCRETE A. Convey concrete from mixer to place of final deposit by methods that will prevent

separation and loss of materials. B. For chuting, pumping and pneumatically conveying concrete, use only equipment of

such size and design as to ensure a practically continuous flow of concrete at the delivery and without loss or separation of materials.

C. Deposit concrete as nearly as possible in its final position to avoid segregation due

to re-handling and flowing.


D. Place concrete as dry as possible consistent with good workmanship, never exceeding the maximum specified slump.

E. Place concrete at such a rate that concrete is, always, plastic and flows readily

between bare bars. F. When placing is once started, carry it on as a continuous operation until placement

of the panel or section is complete. G. Thoroughly consolidate all concrete by suitable means during placement, working it

around all embedded fixtures and into corners of forms. H. During placement, thoroughly compact the concrete by hand tamping and by

mechanical vibration. 3.04 TOLERANCE

Concrete curbs shall be checked with a ten-foot straight-edge. There shall be no high spots or low spots greater than 1/8" in ten feet. All edges shall be straight and true.

3.05 SCORE LINES Score lines shall be straight and shall be of the proper alignment as shown on the Drawings. The score depths shall be approved prior to finishing. Score the top of curbing at all corners and at maximum 8 feet on center.

3.06 CURING AND PROTECTION Freshly deposited concrete shall be protected from pre-mature drying and excessively hot or cold temperatures and shall be maintained without drying at a relatively constant temperature for the period of time necessary for the hydration of the cement and proper hardening of the concrete. Apply liquid curing compound as soon as finishing is complete, within 2 hours, and in accordance with Manufacturer's directions.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION SYNTHETIC TURF INSTALLATION SECTION 32 18 13 - 1

SECTION 32 18 13 SYNTHETIC TURF INSTALLATION


This section includes requirements for the installation of the synthetic turf play surface for the Gaga Courts as indicated on the drawings.


A. Contractor shall have a minimum five years’ experience installing synthetic turf applications. Submit list of completed projects and contact person for District verification.

B. As an alternate to the above, the Contractor can be a certified installer as verified by a certification letter to the District by the selected Synthetic Turf Manufacturer.

C. Comply with all District Rules and Requirements as related to the use of glues, and products related to this work.

1.03 SUBMITTALS Submit Manufacturer’s specifications, samples, product material list and all information for

the selected synthetic turf installation. This must be submitted and approved prior to any purchase agreement between the Contractor and Supplier.

PART 2 PRODUCTS 2.01 SYNTHETIC TURF

Synthetic turf shall be Synlawn Fescue 243 or equal.

2.02 ADHESIVES

Adhesives shall be as required by the Synthetic Turf Manufacturer.

2.03 BASE

Base shall be crushed aggregate base as per Section 200-2.2 of the SSPWC. 2.04 WEED FABRIC

Weed fabric shall be Mirafi 140N, needle punched, non-woven geotextile or equal.


2.05 NAILS

Nails shall be 6-inch galvanized common nails.

2.06 INFILL

A. Infill material shall be Envirofill ® as manufactured by USGreentech, LLC. The synthetic turf infill material shall be specifically designed and manufactured for landscape use. It shall be rounded, and highly uniform quartz sand pigmented and sealed with an acrylic polymer and have the following properties: 1. The silica sand shall have a Coefficient of Uniformity of ≤ 1.3. 2. The roundness as measured by the Krumbein Shape Scale shall be 0.7+. 3. 98% of the particles retained on US standard sieves 12 through 20. 4. The coated particles shall be smooth to resist mounding and compaction

and have an angle of repose of 30% or less. 5. The finished product shall be 100% coated, shall repel water, be non-

flammable and have <0.5% dust content. 6. Product shall be infused with Microban ® during manufacturing to provide

continuous antimicrobial protection. 7. Product shall be exempt from Prop 65 warning requirements. 8. Color shall be Green 9. Product to be Envirofill ® manufactured by USGreentech, LLC or

approved equal.

2.07 SHOCK PAD

Shall be a 2-inch thick pad as manufactured by Schmitz Foam Products, “ProPlay-55” or 2-1/8 inch GreenFoam Playground Pad as manufactured by Polygreen Foam, or equal.

2.08 EDGE RESTRAINT

A. The edge restraint shall be a combination of concrete curbing and wood headers as indicated on the drawings. 1. Concrete curbing – see section 32 13 13 Concrete Work. 2. Wood Edge shall be pressure treated 2 x 8. Pressure treatment shall have

in-ground rating. 3. 2 x 4 shall be “Bend-a-Board” as manufactured by Epic Plastics.

2.09 FASTENERS

A. Screws to attach “Bend-a-Board” to 2 x 8 shall be Simpson SD Screws #9 x 2 ½” galvanized, or equal.

B. Screws to attach steel stake to the 2 x 8 shall be Simpson SD screws #9 x 1 ½”,

galvanized, or equal.


C. Screws to attach the edge of the synthetic turf to the top of the “Bend-a-Board” shall be Simpson wafer head screw, #8 x 1 ¼”, clear zinc-coated, or equal.

2.10 METAL STAKES

Metal Stakes shall be ¼” x 1 ½” x 24” long hot rolled steel bar stock curb stake.

PART 3 EXECUTION 3.01 SITE PREPARATION

A. The Contractor shall examine the site and observe the conditions under which the work shall be done and note any circumstances which will affect the work.

B. The existing turf and roots shall be removed. Existing soil shall be removed to the

required subgrade elevation to install the base, pad, and synthetic turf. The subgrade shall be scarified, and moisture conditioned then compacted to a minimum of 90 percent. Finish grade of the compacted subgrade shall be uniform and must be approved by the District Inspector prior to installing the crushed aggregate base.

3.02 BASE PREPARATION

Install 3” thick crushed rock base throughout the synthetic turf area. Subgrade shall be uniform in grade with no more than 1/8” variation. Install base material to smooth uniform surface and compact with vibrator plate. Finish surface next to the concrete edge so that the turf is flush with the concrete surface.

3.03 SHOCK PAD

The shock pad shall be secured to the aggregate base with 6 inch galvanized nails at 18 inches on center in the field and 8 inches on center at the perimeter edge set 6 inches from the edge restraint.

3.04 SYNTHETIC TURF INSTALLATION REQUIREMENTS

Follow the selected Manufacturer’s installation procedures. All work progress must be approved by the District Inspector before proceeding with the next step. Turf seams shall be glued together with seam cloth. The edge of the turf shall be screwed down to the “Bend-a-Board” edge as indicated on the details. Infill shall be evenly spread at the rate of two pounds per square foot. Finish shall be a smooth uniform layer without wrinkles and or bulges.

3.05 DISPOSAL

Remove from the site and dispose of all unused material in a legal manner.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION IRRIGATION SECTION 32 84 23 - 1

SECTION 32 84 23 IRRIGATION


Includes all labor, materials, equipment, and operations required to complete the Irrigation System in accordance with the SSPWC latest edition, and the applicable Drawings.


Section 32 93 33 Landscape Planting

1.03 REQUIREMENTS OF REGULATORY AGENCIES

Secure all permits and licenses necessary for the work. Give all notices and comply with all laws, ordinances, rules and regulations concerning the installation of the sprinkler system as drawn and specified.

1.04 SITE CONDITIONS

A. Prior to beginning any work, the Contractor and the PVSD Representative shall

participate in a thorough irrigation system review of the project site. All remote control valves shall be turned on and observed in operation by both the Contractor and PVSD Representative. Any existing defects will be listed in detail identifying the specific valve station number and describing the exact broken or non-functioning irrigation component noted during the site review. At the conclusion of the irrigation review, the Contractor shall generate a summary of the items identified by both parties listing all remote control valves operated, identifying if the valve performed without any defects or specifically identifying any observed defects or non-functioning components, such as broken heads, clogged nozzles, non-operating valve solenoids, broken piping, or other noted defects. The completed summary of items noted shall be listed on a document called ‘Existing Irrigation System Observations’. This document shall be signed by the Contractor and submitted to the PVSD Representative for a confirming signature. The mutually signed ‘Existing Irrigation System Observations’ document shall be sent to the attention of the Landscape Architect for inspection purposes at the conclusion of the construction work. If requested by the PVSD Representative, the Contractor shall provide a list of the existing defective irrigation components noted with a detailed written proposal to repair each item identified on the list. A copy of this proposal will be sent to the Landscape Architect. This additional work proposal must be reviewed and approved in writing by the PVSD and formally presented to the General Contractor before the Landscape Subcontractor can begin any additional repair work. The mutually signed ‘Existing Irrigation System Observation’ document shall be used as a guide to identify any collateral damage caused to the existing irrigation system as a result of new construction performed on site by the Contractors. Any damage caused to the existing irrigation system not specifically identified on the ‘Existing Irrigation System Observation’ document


shall be repaired or replaced at the Contractor's expense. In the event that the Contractor does not participate or perform the existing irrigation site review, any existing irrigation equipment or components damaged on the project site noted by the Landscape Architect during the final irrigation system review shall be repaired or replaced by the Contractor at their expense to the satisfaction of PVSD.

B. Do not willfully install the sprinkler system as indicated on the drawing when it is

obvious in the field that unknown obstructions or grade differences exist that might not have been considered in the engineering. Such obstructions or differences should be brought to the attention of the District Engineer.

C. Before excavating for sprinkler lines, locate all underground utility lines so that the

proper precautions may be taken to avoid damage to such utilities. In the event of a conflict between underground lines, promptly notify the District who will arrange for the relocation of one or the other. Failure to follow this procedure places the responsibility upon the Contractor for making any and all repairs for damage of any kind at his own expense.

D. Provide necessary safeguards and exercise caution against injury or defacement

of any existing site improvements. Contractor shall be responsible for any damage resulting from his operations and shall repair or replace such damage at his own expenses. No trucks or vehicles of any kind shall be allowed to pass over sidewalks, curbs, etc., unless adequate protection is provided.

E. Existing Trees

1. Exercise all possible care and precautions to avoid injury to tree roots, trunks and branches. All excavating within drip line of trees shall be done very carefully and by hand pick and shovel if it appears that large roots are within trenching zones.

2. Alter alignment of pipe to avoid large tree roots, 2-inch and larger in diameter.

3. Wrap exposed and bridging tree roots with several layers of burlap and keep moist. Close all trenches within drip lines, within 24 hours.

4. All severed roots 1-inch and larger shall be hand pruned with sharp tools and painted with acceptable horticultural seal.

1.05 MATERIAL LIST

Submit to the District for acceptance, five (5) copies of all materials and equipment, including Manufacturer's names and catalog numbers, to be furnished and installed under this contract within 10 days after the award of the contract.

1.06 RECORD DRAWINGS

A. Provide and record daily a complete record set of prints on bond which shall be

corrected to show changes from the original drawings and specifications and the exact installed locations, sizes and kinds of equipment. Prints for this purpose may be obtained from the District. Keep this set of drawings on the site and use only as a record set.


B. Use these drawings as work progress sheets. Make neat and legible annotations thereon as the work proceeds, showing the work as actually installed. Keep these drawings available at all times for inspection and in a location designated by the District.

C. Before the date of the final inspection, transfer all information from the record prints

to a clean set of prints procured from the District. Make work neat, in ink and subject to review and acceptance of the District. District will scan final drawings into a permanent electronic record document.

D. Dimension from two permanent points of reference such as building corners,

sidewalks or road intersections, the location of: 1. Connection to existing water lines. 2. Connection to existing electrical power. 3. Gate valves. 4. Routing of sprinkler pressure lines and control wiring. 5. Electric control valves. 6. Quick coupling valves. 7. Other related equipment as directed by District.

1.07 CONTROLLER CHARTS

A. Record drawings shall be reviewed and accepted by the District before charts are

prepared. B. Provide one controller chart for each controller supplied. C. The chart shall show the area controlled by automatic controller and shall be the

maximum size controller door will allow. D. The chart is to be reduced from the final record drawing set. However, in the

event the controller sequence is not legible when the drawing is reduced, it shall be enlarged to a size that will be readable when reduced.

E. Chart shall be blackline print and a different color shall be used to show area of

coverage for each station.

F. The chart shall be mounted using Velcro, or an approved equal type of tape. G. When completed and approved, the chart shall be hermetically sealed between

two pieces of plastic, each piece being a minimum 20 mils. thick. H. These charts shall be completed and approved prior to final inspection of the

irrigation system.

1.08 TESTS AND SITE OBSERVATIONS

A. All tests shall be made in the presence of the District; at least forty-eight (48) hours’ notice shall be given for tests.


B. Record drawings must be current and shall be verified by the District at the time of all observations.

C. Site observations for all items pertaining to the work of this Section shall be

performed by the District. D. Specific site observations for valve assemblies, sprinkler coverage, control wires

and splices and any other observations deemed necessary by the District shall be performed by the District.

E. An open trench main line check for pipe quality and depths shall be performed by

the District. F. Head Layout - using flag marker layout new turf rotors and spray heads in field

prior to trenching. Review head layout with District and Landscape Architect and make adjustments in fields as directed prior to installing irrigation. The District Representative or Landscape Architect reserve the right to change nozzles in the field to refine irrigation coverage over landscape area.

G. Center load pipe with small amount of backfill to prevent arching and whipping

under pressure. Leave joints exposed for observation during pressure test. No water shall be permitted in the pipe until the above has been accomplished and a period of at least 24 hours has elapsed for solvent weld setting and curing.

Main lines to be tested up to valve at 125 pounds pressure and there shall be no leaks. Furnish force pump and pressure gauge. Lateral lines of system to be tested at line pressure with risers capped. Tests to be for 2-hour period and verified by the District.

H. Backfill quality and compaction of trenches shall be verified by the District. Do not

backfill trenches until all tests have been completed and accepted. I. Protect in place any existing sprinkler timer on site. J. Perform a coverage test in the presence of the District to determine if the water

coverage for planting areas is complete and adequate. Furnish materials and perform all work required to correct any inadequacies of coverage due to deviations from drawings, or where the system has been willfully installed as indicated on the drawings when it is obviously inadequate, without bringing this to the attention of the District.

K. The coverage test shall be completed, and the irrigation system modified if

necessary and accepted, prior to the start of the planting operations. L. The entire system shall be checked out thoroughly and completely by the

Contractor, five (5) days prior to the final observation. All heads shall be properly aligned and adjusted for coverage and cleared of any foreign materials. All valves shall be properly adjusted. Sprinkler controller valve chart shall be checked for accuracy.


M. At the end of the Maintenance Period, a final observation shall be made by the Contractor and District to check out the entire system.

N. Final inspection prior to acceptance:

1. Operate each system in its entirety for the District at time of final inspection. Rework any items deemed not acceptable to the District.

2. Deliver to the District all accessories, charts, record drawings, and equipment as required before final inspection.

1.09 GUARANTEE

A. The entire sprinkler system shall be guaranteed for a period of one (1) year from date of final acceptance.

B. Should any portion of the irrigation system malfunction due to poor workmanship

or defective materials, corrections shall be promptly made by the Contractor at his own expense.

C. Any damage to paving, plating, or other developments due to the settlements of

improperly compacted trench soil, shall also be promptly repaired at the Contractor's expense, to the satisfaction of the District.

PART 2 PRODUCTS 2.01 GENERAL

A. The irrigation products specified on the drawings in these specifications are

selected to match existing products in use. Substitutions are permitted only when product name is followed by or equal.

B. Use only new materials of brands and types as noted on the drawings and as

specified.

2.02 MATERIALS

A. Electrical conductors - 24-volt conductors shall be U.F. type, solid wire, U.L. approved for direct burial. Minimum size shall be 14 gauge or as noted on drawings. Acceptable products shall be 3M Model DBR-Y6 or Spears Model DS-400 or approved equal.

B. Fittings - galvanized malleable steel, Schedule 40. C. PVC primer and solvents - as recommended by Manufacturer. John-Manville,

Lasco, or Pacific Western. D. Main Line Fittings - Schedule 40, PVC Type 1, Grade 1, Cell Classification 12454-

B, side gated, Lasco, Spears, or approved equal.


E. Lateral non-pressure line fittings - Schedule 40, PVC Type 1, Grade 1, Cell Classification 12454-B, side gated, Lasco or approved equal.

F. Ball valve shall be line size, Schedule 80 PVC manufactured by Spears, Tru-

Union-Series, Colonial/Lasco Model VXX101N-SC Series, or approved equal. G. Nipples and Risers - PVC Schedule 80. H. Pipe, Main Line shall be PVC Schedule 40, solvent weld pipe in conformance with

ASTM D-1785, D-1784. I. Pipe, Lateral Non-Pressure Lines shall be PVC Schedule 40, solvent weld in

conformance with ASTM D-1785, D-1784. J. Thread Sealant shall be smooth, non-hardening sealant, compatible with the pipe

materials specified. Do not use Teflon tape. K. Valve Boxes

1. Ball Valves shall be Carson Model, 1419-12-4B Series with lid and valve box extension or approved equal.

2. Remote Control Valves shall be Carson Model, 1419-12-4B with lid or approved equal.

3. Quick Coupling Valves shall be Carson Model, 910-4B Series with lid or approved equal.

4. Wire Pull Boxes shall be Carson Model 1419-12-4B Series with lid or approved equal.

5. Master Valve shall be Carson Model 1220-12-4B Series Jumbo Box or approved equal.

6. Flow Sensor shall be Carson Model 1419-12-4B Series with lid or approved equal.

L. Concrete - thrust blocks, walks, controller pads shall be hardrock concrete with

minimum compressive strength at 28 days of 2,500 PSI and conform to ASTM L-94. Finish for walks shall be medium brown.

M. Mainline fittings and transition couplers for existing asbestos cement mainline shall

be manufactured by Romac, Smith-Blair or approved equal. N. Automatic Control Valves shall be Weathermatic Model MAX-DW Series or MAX-

DW-XPR Series. No known equal. O. Pop-up sprayhead shall be 6” pop-up body with check valve and 30 pressure

regulator; manufactured by Rain Bird Model 1806-SAM-PRS with MPR fixed nozzles and HE-VAN Adjustable Series nozzles. No known equal.

P. PVC flange fittings shall be PVC Schedule 80, Type 1, Grade 1, loose ringer, ANSI

Class 150 flange, Lasco Series 954 or approved equal with full face 1/8” thick elastomeric gasket, 5-70 Shore A hardness.


Q. Master valve shall be brass body, rated at 200 PSI, 3” size, normally open with 24 VAC solenoid, Superior 3300 Series with standard 12-volt solenoid.

R. Flow sensor shall be manufactured by Weathermatic, 2” size, solvent weld

Schedule 40 PVC body, Model SLFSi-T20. Install per Manufacturer’s specifications.

S. Existing flow sensing cable shall be manufactured by Rain Master (Irritrol) Model

EV-CAB-SEN, installed in a ¾” Schedule 40 PVC electrical conduit 18” below grade. Connect flow sensing cable as per Manufacturer’s specifications.

T. Pop-up turf rotor shall be 6” pop-up body with stainless steel riser and built-in check

valve. Hunter Model i40-06-SS for part circle pattern. No known equal. U. Pop-up turf shall be 6” pop-up body with stainless steel riser and built in check

valve. Hunter Model i25-06-SS for full circle and part circle pattern. No known equal.

V. Pop-up turf rotor shall be 6” pop-up body with stainless steel riser and check valve

with pressure regulator Hunter Model i20-06-SS-PRB for full and part circle arcs with standard and MPR nozzles. No Known Equal.

W. Irrigation booster pump shall be purchased and provided to Contractor by PVSD.

Contractor to demolish and remove existing booster pump. Install new pump at same location within masonry security enclosure as per plans and manufacturer’s specifications. Pump assembly by Site One Green Tech, Booster Pump Model PA25-19F-281.

2.03 SPARE EQUIPMENT AND LABOR TO INSTALL SPARE EQUIPMENT

A. Include in base bid work, the following additional equipment with labor costs to

install the following irrigation heads with new swing joint assembly. The intent for this scope of work is to cover any potential existing sprinkler heads that were missed during the site evaluation. At the conclusion of the project, any of these sprinkler heads that were not used during the project installation shall be turned over to the District Representative for maintenance and repair purposes. 1. Five (5) 6” pop-up full circle turf rotor, Hunter Model i40-06-SS-ON. 2. Five (5) 6” pop-up part circle turf rotor, Hunter Model i40-06-SS. 3. Five (5) 6” pop-up turf rotor, Hunter Model i20-06-SS-PRB. 4. Ten (10) 6” pop-up turf sprayheads, Rain Bird Model 1806-SAM-PRS.


PART 3 EXECUTION 3.01 WORKMANSHIP AND INSTALLATION

A. Layout and Adjustments

1. The drawings are diagrammatic to the extent that many offsets, special fittings and exact locations of the equipment are not shown. The locations of all valves, heads, lines, etc., shall be installed, however, as accurately as possible to the locations that are indicated on the drawings.

2. The locations of main lines are indicated as bordering walks, curbs and fences shall be placed as close as possible. Locate lines within planting areas wherever possible.

3. All indicated locations of heads and equipment are placed with careful consideration to overlap, protection of the premises, lights, proposed tree locations and general layout. Coordinate installation of sprinkler irrigation materials, including pipe, so there is no interference with utilities, other construction, or difficulty in planting trees and shrubs. Layout sprinkler heads and make any minor adjustments required due to differences between site and drawings. Adjustments shall be accomplished, maintaining proper sprinkler head coverage and overlap of sprinkler throws.

B. Connections 1. All connections shall be made into existing lines as indicated on the

drawings. 2. Field verify existing line types in the field.

C. Cutting and Patching

1. When piping crosses concrete paving and asphalt paving, sawcutting is required. Cut AC paving and/or concrete with concrete sawcutting tools straight and in those locations approved by the District.

2. Remove concrete and/or AC, base and soil to the required depth for mainlines.

3. Concrete walks shall be backfilled entirely with compacted sand. Compact to 95% and patched with new concrete.

4. AC paving shall be backfilled entirely with a 1-sac sand slurry mix. Compact to 95% and patch with new AC paving.

5. Concrete paving shall be received medium broom finish. 6. Remove from site any excavated soil.

D. Trenching and Backfilling

1. Trench and excavate as necessary to install the system. Excavated material shall be neatly arranged so as to cause a minimum of inconvenience to pedestrian and vehicular traffic. No soil shall be placed on concrete paving without an adequate moisture proof membrane to protect paving.

2. Trenches for all pipe shall be open vertical construction with firm level bottom and sufficiently wide to provide free working space around the work installed and to provide ample space for backfilling and tamping.


3. Depth of trenches shall be sufficient to provide a minimum cover above the top of the pipe as follows: a) Mains and control wires: 24-inches minimum cover. b) PVC laterals: 12-inches minimum cover.

4. When two (2) pipes are to be placed in the same trench, provide a minimum of 6-inch horizontal clearance. Place pipe side by side; do not install one pipe on top of another.

5. After the installation is complete and the required tests and inspections have been made and approved, the excavations and trenches shall be backfilled with clean soil, free of rubbish, rocks, and pebbles larger than one-half inch.

E. Plastic Pipe 1. Do not install multiple assemblies on plastic lines. Provide each assembly

with its own outlet. 2. Install assemblies specified herein in accordance with respective detail. In

absence of detail drawings or specifications pertaining to specific items required to complete work, perform such work in accordance with best standard practice.

3. Clean PVC pipe and fittings before installation. For solvent weld pipe use installation and solvent welding methods as recommended by the pipe and fitting manufacturer. For gasketed pipe installation follow detailed assembly instructions furnished by the manufacturer.

4. On PVC to metal connections, work the metal connections first. Use non-hardening sealant on all threaded joints. Screw hand tight and ½ turn by wrench. Where threaded PVC connections are required, use threaded PVC adapters into which the pipe may be welded.

5. Pipe shall have a firm, uniform bearing, for the entire length of each pipe line, to prevent uneven settlement. Pipe shall be snaked from side to side of trench bottom to allow for expansion and contraction. One additional foot per 100 foot of pipe is the minimum allowance for snaking. Never lay PVC pipe when there is water in the trench or when the temperature is 32 F or below.

6. Use 45 fittings at all changes in depth of pipe. Coupling to be of same materials and wall thickness as pipe.

F. Concrete Thrust Blocks - for mainline 2” and larger, and all gasketed fittings, install concrete thrust blocks at all directional changes.

G. Existing Sprinkler Controller

1. Auto controller assembly are existing. Reconnect existing flow sensing cables and communications cables to existing auto controller components as per manufacturer’s specifications.

2. Electrical wiring and work shall conform to the codes and ordinances of all governmental agencies having jurisdiction. Exposed conduits and fittings shall be of one type and finish. Running threads shall not be used.

H. Control Wiring 1. Control wires and mains shall be installed in common trenches wherever

possible.


2. Control wires and two-wire cables shall be installed at least 24-inches below finish grade within Schedule 40 PVC electrical conduits equipped with sch. 40 PVC sweep elbows into and out of all valve boxes. Wire conduits shall be kept to the side of the main line where possible. It shall be a minimum of 6-inches from any pipe or fittings except at terminal points. Provide looped slack at valves and snake wires.

3. Control wire splices allowed only on runs more than 500 feet. Splice as follows: a) Strip off minimum of 2 ½” inches of insulation from each wire and

twist wires together 4 complete twists. b) Make splices with 3M Model No. DBR-Y6, waterproof wire

connectors as per Rain Master specs. Use one splice per connector sealing pack. Do not make field splices.

4. Wires passing under future or existing paving, construction, etc., shall be encased in a PVC Class 200 sleeve, extending at least 12-inches beyond edges of paving or construction.

5. Identify all control wires at valve boxes and controller with “wire marker tags” 3M or equal.

I. Valves:

1. Piping systems shall be supplied with valves at all points shown on the drawings or specified herein and shall be arranged to give complete regulating control throughout.

2. Valves shall be the full size of the line in which they are installed unless otherwise indicated.

3. Valves shall be installed in accordance with the drawings and Manufacturer's specifications so all parts are easily accessible and maintained. Valves near walk, curbs, etc., shall be set with 12-inches and parallel to same. Remote control valves shall be installed in groundcover or shrub areas wherever feasible.

4. Remote control valves shall be adjusted so that the sprinkler heads operate at pressure recommended by the head manufacturer. Remote control valves shall be adjusted so that a uniform distribution of water is applied by the sprinkler heads to the planting areas from each individual valve system.

5. Valve boxes shall be set ½-inch above the designated finish grade at each valve.

J. Sprinkler Heads 1. Prior to installing heads, flush laterals and risers with full line pressure.

Repeat whenever system is opened up for repairs or replacements. Start flushing operation at the highest point of delivery and work to the lowest.

2. Align all part circle heads so that no spray shall hit building walls or concrete paving.

3. Adjust all spray nozzles so that there will be no amount of overspray, and so that the entire set will be as evenly balanced as possible.

4. Install with each lawn area sprinkler head, a “Triple Swing” joint with Schedule 80 PVC nipples and threaded ells.

5. Install all tree bubblers and drip emitters on PVC flexible hose with two (2) solvent weld male adapters.

3.02 FIELD QUALITY CONTROL


A. Adjustment to System

1. Flush and adjust all sprinkler heads for optimum performance and to prevent overspray onto walk, roadways, and buildings wherever possible.

2. Select the best degree of arc to fit existing site conditions. 3. Set all sprinkler heads perpendicular to finished grades unless other

designated on the drawings.

3.03 TESTING AND INSPECTION

A. Do not allow or cause any work of this section to be covered up or enclosed until it has been inspected, tested, and approved by the District. Before backfilling the main line, and with all control valves in place, but before lateral pipes are connected, completely flush and test the mainline, and repair all leaks. Flush out each section of lateral pipe before emitters are attached.

B. Make all necessary provisions for thoroughly bleeding the line of air and debris.

Before testing, fill the line with water for a period of at least 24 hours. C. After valves have been installed, test all pressure main lines for leaks at a pressure

of 150 PSI for a period of two hours, with all couplings exposed, and all pipe sections carefully center-loaded. Furnish all necessary testing equipment and personnel. Correct all leaks, and retest until accepted by the Engineer.

3.04 FINAL INSPECTION

Thoroughly clean, adjust and balance all systems. Demonstrate the entire system to the District proving that all remote control valves are properly balanced, that all emitters are properly flowing, and that the entire system is installed and is workable, clean, and efficient.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FIELD TURF RENOVATION SECTION 32 92 00 - 1

SECTION 32 92 00 FIELD TURF RENOVATION

PART 1 GENERAL 1.01 DESCRIPTION

This section includes the requirements for the renovation of the existing field turf area. This work includes verticutting, thatching, sanding, mowing, and fertilizing as indicated in these specifications and illustrated on the drawings.


Any required spraying work shall be done in accordance with governing agencies and according to the policies of the District.

1.03 SUBMITTALS

A. Furnish material invoices indicating the quantities of fertilizers and all materials

delivered to the job site. Material invoices must be approved by the District Inspector prior to incorporating.

B. Certificates shall be prepared by the Supplier or Distributor and shall indicate the

quantities and qualities of materials used.

1.04 PROTECTION

A. Contractor shall check or locate existing structures, electric cables or conduits, utility lines and other existing features or conditions above or below ground level that might be damaged as a result of the operation. Questions or conflicts arising out of such examination prior to or during operation shall be immediately directed to the attention of the District for necessary action or decisions before resuming operation. Contractor shall be responsible for repair or replacement, at no cost to the District, for features or conditions damaged through failure to comply with the above procedures.

B. Protect existing trees and tree roots from any damage that may be caused as a

result of any lawn renovation work. 1.05 ALTERNATES

Alternates will not be permitted, except where indicated.


Renovation work shall be performed by a Contractor with a valid California State License Classification C-27, Landscape Contractor.

LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FIELD TURF RENOVATION SECTION 32 92 00 - 2

PART 2 PRODUCTS 2.01 SAND

Sand for filling in low spots and or depressions shall be clean plaster sand.

2.02 FERTILIZER

Fertilizer shall be Best Triple Pro 15-15-15.

2.03 TEMPORARY FENCING FOR PROTECTON Temporary fencing for protection shall be installed as directed by the District Inspector

and shall comply with Fencing and Protection Section 01 10 20. PART 3 EXECUTION 3.01 FIELD TURF LAWN RENOVATING

A. After all irrigation system improvements are approved by the District Inspector, the Field Turf Renovation work shall proceed.

B. Renovate lawn areas with “verticutter” machine as necessary to remove thatch and

scarify soil surface to within ½” from soil level and sever existing turf stolons. Run the verticutter in both directions. Remove from the site all thatch created during this process.

C. After the renovation is approved by the District Inspector, mow lawn areas to

uniform height. D. Apply sand over uneven grade depressions as directed in the field. Level sanded

areas flush with adjacent grades to create a smooth, uniform, playing surface. E. Apply fertilizer at the rate of 4 pounds of nitrogen per 1,000 square feet evenly

throughout the renovated field turf area. G. Once the field turf renovation work is approved by the District, the District will take

over the maintenance.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FIELD TURF PLANTING SECTION 32 92 10 - 1

SECTION 32 92 10 FIELD TURF PLANTING


This section includes General Requirements and Specifications for the Field Turf Planting. Field turf planting areas are designated areas that require cultivation, incorporation of soil amendments, grading and hydroseeding.


Section 32 92 19 Field Turf Hydroseeding.


Any required Spraying Work shall be done in accordance with Governing Agencies and the policies of the District.

1.04 SUBMITTALS

A. Furnish material invoices indicating the quantities of fertilizers, soil amendments, and all materials delivered to the job site. Material invoices must be approved by the District Inspector prior to incorporating soil amendments.

B. Certificates shall be prepared by the supplier or distributor and shall indicate the

quantities and qualities of materials used.

1.05 PROTECTION

A. Contractor shall check or locate existing structures, electric cables or conduits, utility lines and other existing features or conditions above or below ground level that might be damaged as a result of the operation. Questions or conflicts arising out of such examination prior to or during operation shall be immediately directed to the attention of the Landscape Architect for necessary action or decisions before resuming operation. Contractor shall be responsible for repair or replacement at no cost to the Owner for features or conditions damaged through failure to comply with the above procedures.

B. Protect existing trees and tree roots from any damage that may be caused as a

result of any planting or irrigation operations.

1.06 ALTERNATES

Alternates will not be permitted, except where indicated.


PART 2 PRODUCTS 2.01 ORGANIC AMENDMENTS

Agromend as supplied by Agromin.

2.02 FERTILIZER Fertilizer shall be Best Triple Pro 15-15-15.

2.03 SOIL

Soil shall be existing site soil as approved by the District Inspector. If import soil is required, it shall be Class “A” Topsoil as per section 800 of the SSPWC.

2.04 LAWN

Lawn shall be seeded per mix in Section 32 92 19 Field Turf Hydroseed.

2.05 SOIL PREPARATION MIX

A. Soil preparation materials shall be the following per 1,000 sq. ft.:

1. Three cubic yards of Agromend. 2. Best Triple Pro 15-15-15 at the rate of six pounds.

PART 3 EXECUTION 3.01 SITE CONDITION

No plant materials shall be planted until all operations in conjunction with the installation of the irrigation system have been approved by the District. Final grades shall be established, and the planting areas shall be properly prepared and graded.

3.02 GROUND PREPARATION – FIELD TURF PLANTING

A. Field turf planted areas shall be thoroughly cultivated to a depth of six inches to

reduce compaction. B. Stones or rocks over 1” in size, construction refuse, and other deleterious material

shall be removed from the site, safely and legally disposed of. C. Apply soil preparation materials to all planting areas and thoroughly incorporate

into the top six inches of soil. D. Wet soil thoroughly and allow to settle. Repeat this compaction procedure until

soil is stable enough to permit aeration and drainage for plant material.


E. Finish grade field turf planting to a smooth, uniform surface ready for hydroseeding. Finish grade shall be one inch below finish grade of adjacent paved surfaces and even with any adjacent renovated turf areas.

3.03 FIELD TURF HYDROSEEDING

A. After soil prep and fine grading is complete, roll lawn areas with a water ballast roller to create even surface. Soil should be moist to a depth of six (6) inches.

B. Apply lawn seeding per Field Turf Hydroseeding Section 32 92 19.


LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FIELD TURF HYDROSEEDING SECTION 32 92 19 - 1

SECTION 32 92 19 FIELD TURF HYDROSEEDING

PART 1 GENERAL 1.01 DESCRIPTION

This section includes General Requirements for the hydroseeding the lawn seed mix over the renovated field turf areas.

1.02 SUBMITTALS

Prior to starting Work, submit for approval, specification cut sheets for all products required. During the progress of the work, provide to the District Inspector Supplier's material invoices indicating all quantities of fertilizers, seed, fiber, mulch and all materials used to complete the hydroseeding.

1.03 QUALITY ASSURANCE Hydroseeding Work shall be performed by a company with a minimum of five years’

experience. Hydroseeding Contractor must hold a valid California State License Classification D-59 for Hydroseeding.

1.04 PROTECTION

Protect adjacent planting areas and building surfaces from overspray. PART 2 PRODUCTS 2.01 SEED

Seed shall be clearly tagged and labeled showing type of seed, test date, name of supplier and percentage of the following: crop seed, inert matter, weed seed, noxious weeds, and total germination content.

2.02 FIBER

Wood fiber shall be derived from cellulose such as wood pulp or similar organic material. When used in the applied mixture, an absorptive or porous mat will result on the surface of the ground. Add green dye to mix.

2.03 FERTILIZER

Fertilizer shall be “Plant Marvel” High Sulfur Turf Special 23-8-16 plus.

2.04 TACKIFIER Tackifier shall be Ecology Controls M-Binder tackifier.

LAS COLINAS MIDDLE SCHOOL LANDSCAPE RENOVATION FIELD TURF HYDROSEEDING SECTION 32 92 19 - 2

2.05 HYDROSEED MIX – FIELD TURF RENOVATION

A. Hydroseed mix shall be as follows: 1. Seed - Stover Pro Sports Field seed mix at the rate of 12 pound per 1,000

square feet. 2. Fertilizer at the rate of five pound of nitrogen per 1,000 square feet. 3. Soil stabilizer (ecology controls m-binder) at the rate of 100 pounds per

acre. 4. Fiber at the rate of 1,500 pounds per acre.

2.06 WATER

Water shall be clean, fresh, suitable for domestic consumption and free from such amounts of mineral and organic substances that would inhibit seed germination or growth.

2.07 EQUIPMENT

A. Mixing shall be performed in a tank with a built-in continuous agitation and recirculation system of sufficient operating capacity to produce a homogeneous slurry of fiber, soil stabilizer, seed, and water in the specified proportions.

B. The discharge system shall be capable of applying the slurry to the ground surface

at a continuous and uniform rate. PART 3 EXECUTION 3.01 SITE CONDITIONS

Hydroseeding shall not begin prior to approval of the Field Turf Lawn Renovation. 3.02 MIXING

Seed, fiber, tackifier, fertilizer, and water shall be thoroughly mixed into a homogeneous slurry of the proper consistency to adhere to the ground surface without lumping or running. Slurry must be applied within four (4) hours after mixing or it shall be rejected and removed from the site and replaced at the Contractor's expense.

3.03 CLEAN UP

Any slurry, which is sprayed on adjacent building or paved surfaces, shall be thoroughly washed and removed from the site.


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