Full Text
(ADVERTISEMENT) FAX 523-5221 To: Missoulian Legal Notices From: Donna Gaukler, Parks & Recreation Director Date: May 18, 2010 RE: Legal Notice, Please Print For print Sunday, May 23 and May 30, 2010 CITY OF MISSOULA PARKS & RECREATION DEPARTMENT REQUEST FOR QUALIFICATIONS FOR PLAYFAIR IRRIGATION DESIGN/BUILD PROJECT, City of Missoula, Montana City Project No. PR 10–6 PIM NOTICE TO IRRIGATION PROFESSIONALS: Notice is hereby given that the City of Missoula Parks and Recreation, an Equal Opportunity government, will receive written Qualifications for Design/Build Services for, irrigation modification and expansion of Playfair Park irrigation system. SUBMISSION DEADLINE: Written proposal shall be submitted to the City Clerk’s Offices at 435 Ryman Street, Missoula, Montana 59802 on or before 3:00 p.m., local time the day of June 7, 2010. Envelopes shall be clearly marked “Project 10-6 PIM - RFQ; Response to RFQ for Playfair Irrigation Design/Build Project; Attn: Marty Rehbein, City Clerk”. Questions regarding the project should be directed to Alan White by calling (406) 552- 6261 or emailing [EMAIL REDACTED] . Copies of the detailed Request for Qualifications (RFQ) can be obtained via the Parks & Recreation website at www.ci.missoula.mt.us/parksrec or by contacting Alan White, Parks and Recreation, 100 Hickory Street, Missoula, Montana 59801. ---PAGE BREAK--- REQUEST FOR QUALIFICATIONS For PLAYFAIR IRRIGATION DESIGN/BUILD PROJECT Missoula Parks & Recreation Project PR10-6 PIM Playfair Park Irrigation Modifications The City of Missoula, acting as Project Owner and following the guidelines of the State of Montana MCA Title 18 Design/Build process, is seeking to secure a qualified irrigation firm to design and build the specified upgrades and expansion to the Playfair Park irrigation system. The process includes recruitment of a highly qualified, professional irrigation firm for design and construction services for modifications to, and expansion of, the Playfair Park irrigation system. By this Request for Qualifications, The City of Missoula is recruiting firms to submit a qualification proposal for the above described services. BACKGROUND The proposed modifications and expansion will be located within certain described areas inside of Playfair Park and the parking lots recently constructed along Pattee Creek Drive and Stephens Avenue that service the park. The purpose of these modifications is to adapt the existing pump, pump start, piping and controls to provide for and then to expand the areas serviced by the current well and irrigation systems. The City is proposing that a new variable frequency drive, demand balanced pump start control be substituted for the existing pump start. This would be incorporated into the existing 40HP pump and 90 Psi systems with the existing clay valve as an emergency relief and safely discharged into the well casing. The attached map depicts the expansion of the automated irrigation system and the new areas are described. P&R’s standard irrigation specifications will be utilized and are attached. Respondents will be expected to have become familiar with the site. ---PAGE BREAK--- The successful respondent will be expected to communicate with the utility companies, City Engineering Staff, Parks Project Manager and to meet with Parks maintenance staff concerning security, maintenance and future uses of adjacent land regarding this project. The successful respondent will also be expected to contact the appropriate services and agencies to obtain authorization, permits and any information needed to successfully design and build the project. Respondents must also give consideration to park users, including baseball and soccer leagues and available watering times pursuant to this project. Careful attention must be directed to the protection and safety of existing structure, plantings and utilities, as well as park users and maintenance staff during the design and construction process. Respondents must note and pay careful attention to the fact that this area is part of a flood control system and special rules and regulations may apply to any construction work in and around the dikes and holding cells. Contact City Engineering for pertinent information. Respondents may request further information or clarity by submitting an RFI in writing mail is acceptable) to Alan White, Project Manager for the Parks & Recreation Department at [EMAIL REDACTED] . RFI’s must be received no later than Five calendar days prior to the RFQ closing date to allow time for Addendum response. PROJECT BUDGET The project manager’s estimate for the project is $75,000. All Design and Construction costs including, but not limited to, bonds and insurance are represented in that overall budget. RFQ REQUIREMENTS FOR SCORING Respondents must address all of the following requirements in the format and succession provided/requested. 1. 50 Points - Provide a list of projects completed by your firm in which the size and ---PAGE BREAK--- pressures of the pumping system, as well as the expansion scope and design, are similar or were exceeded. Describe each project in sufficient detail to demonstrate the similarity and provide corresponding contacts for references. 2. 20 Points - Confirm your ability to commence work immediately upon processing of the contract documents should your firm win the final selection. Provide an attainable project schedule based upon your anticipated design and a starting date of 6 weeks following the RFQ submittal date. 3. 10 Points – Provide a list and individual qualifications/experience of your staff that would be utilized in this design/build. 4. 10 Points – Is your firm locally based using local labor and locally (Montana) purchased materials? (Yes or No) 5. 5 Points - Provide and/or demonstrate your firm’s: Montana Contractors ID City of Missoula Business License bonding limit/rating, and ability to provide a minimum of $3,000,000 of liability insurance, as related to the project. 6. 5 Points - Provide a list of anticipated subcontractors, if any, and itemize their work in the project. RESPONDENT SELECTION PROCESS Respondents will be selected to submit a final design and bid using the following process: A. RFQ Responses shall be received at the Parks & Recreation office, 600 Cregg Lane, Missoula, Montana 59801, until 3:00 p.m. Monday, June 7, 2010, enclosed in an envelope clearly marked, Project 10-6 PIM - RFQ ;"Response to RFQ for Playfair Irrigation Design/Build Project." Upon completion of the review and scoring of received responses, two or three respondents may be invited to interview with a selection panel. ---PAGE BREAK--- 4 B. The selection panel will score Proposals by assigning RFQ Scoring Criteria points from requirements 1 though 6 above. C. The scored rankings for all respondents will be summarized by the selection panel that will then proceed to select two or three firms from the respondents judged to be the most qualified to perform this work. These selected firms will be invited to submit a design and bid proposal for the project. D. The final bid process between the Selected Respondents and the City will follow the standard bid process for the City except that the bidding is closed to all but the selected respondents. Two weeks will be provided for the submittal of the design and bid following notice of selection. Bid dates and instructions will be provided to the selected respondents following closure of the selection process which may include interviews as necessary. If you have any questions, please feel free to call Alan White, Project Manager for the City of Missoula Parks & Recreation Division at (406) 552-6261. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI For the purposes of this contract, all applicable specifications shall apply. SECTION – GRADING, DRAINAGE AND TURF PART 1 - GENERAL 1.1 SUMMARY A. This Section includes grading, drainage, soil preparation and lawn seeding. 1.2 DEFINITIONS A. Finish Grade: Elevation of finished surface of planting soil. B. Manufactured Soil: Soil produced off-site by homogeneously blending mineral soils or sand with stabilized organic soil amendments to produce topsoil or planting soil. C. Planting Soil: Native or imported topsoil, manufactured topsoil, or surface soil modified to become topsoil; mixed with soil amendments. D. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill immediately beneath planting soil. 1.3 PERFORMANCE REQUIREMENTS A. The Contractor is to verify all grades and utility locations before commencement of work and notify the Owner of any discrepancies between the plans and existing conditions. B. It is the responsibility of the Contractor to establish finish grade of all planting areas and conduct seed bed preparation before turf seeding. The Owner must inspect the site and issue written approval to indicate that final grade has been established. The Contractor is to coordinate inspections of the site with the Owner. C. All grass/lawn areas must be graded for drainage so as to not hold any standing water. All drain lines are to be sloped no less than 1% and must have a smooth continuous fall. Abrupt changes in grade will not be approved by the Owner. D. All proposed surfaces shall meet existing surfaces with a smooth and continuous transition along the entire edge. Where planted areas meet hardscape elements, the soil finish grade shall be 1 inch below the elevation of the hardscape surface. E. The Contractor shall furnish and pay for and install all turf seed and plant material. The Contractor shall also guarantee all turf seed and plant material. F. The Contractor shall be responsible for ensuring satisfactory turf seed germination, turf coverage and maintenance until Owner issues written acceptance and approval. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 1.4 SUBMITTALS A. Product Data: For each product indicated: 1. "Blue Tag" seed mix certification to be provided to the Owner by the Contractor. 2. Contractor is to provide empty bags with tags from slow-release fertilizer. 1.5 QUALITY ASSURANCE A. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor on project site when seeding is in progress. 1.6 LAWN MAINTENANCE A. Begin maintenance immediately after each area is planted and continue until acceptable stand is established, as follows: 1. Monitor watering schedule to assure optimal moisture for germination and initial growth without causing erosion. 2. Four weeks from seeding, any area where seed has failed to germinate shall be reseeded. 3. At the end of an eight week period, a healthy, uniform, close stand of grass should be established, free of weeds and surface irregularities, with coverage exceeding 90 percent over any 10 sq. ft. and bare spots not exceeding 6 by 6 inches. 4. Reestablish lawns that do not comply with requirements and continue maintenance until lawns are satisfactory. 5. All lawn areas must be weed free to qualify as satisfactory (less than 10% weed growth in any 10 square foot area). PART 2 - PRODUCTS 2.1 SEED A. Recommended Seed Mix: PROPORTION NAME 30% ParkLand Kentucky Bluegrass 15% Goldrush Kentucky Bluegrass 15% Denim Kentucky Bluegrass 20% Majesty Perennial Ryegrass 10% Divine Perennial Ryegrass 10% Calypso II Perennial Ryegrass B. Substitutions must be submitted to the Owner for approval before seeding. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 2.2 PLANTING MATERIALS A. Topsoil: ASTM D 5268, pH range of 5.5 to 7, a minimum of 2 percent organic material content; free of stones 1 inch or larger in any dimension and other extraneous materials harmful to plant growth. 1. Topsoil Source: Verify suitability of stockpiled surface soil to produce topsoil and amend as necessary to meet specification. Reuse acceptable stockpiled soil and supplement with imported or manufactured topsoil from off-site sources when quantities are insufficient. B. Organic Soil Amendments 1. Compost: Well-composted, stable, and weed-free organic matter, pH range of 5.5 to 8. 2. Peat: Sphagnum peat moss, partially decomposed, finely divided or granular texture, with pH range of 3.4 to 4.8. C. Fertilizer: 1. Slow-Release Fertilizer: Granular or pelleted fertilizer consisting of 50 percent water- insoluble nitrogen, phosphorus, and potassium in the following composition: a. Composition: 20 percent nitrogen, 10 percent phosphorous, and 10 percent potassium, by weight with 85% polyon slow release 2. Weight of Slow-Release Fertilizer per 1000 Sq. Ft.: per manufacturer instructions for lawn application D. Mulches: 1. Straw Mulch: Provide air-dry, clean, mildew- and seed-free, salt hay or threshed straw of wheat, rye, oats, or barley. 2. Hydro-mulch: Dyed wood cellulose fiber mulch. 2.3 PLANTING SOIL MIX A. Planting Soil Mix: Mix topsoil with the following soil amendments and fertilizers in the following quantities: 1. Ratio of Loose Compost or Peat to Topsoil by Volume: 3 Yards per 1000 square ft. 2. Weight of Slow-Release Fertilizer: follow manufacturer's instructions for lawn use. PART 3 - EXECUTION 3.1 SEED BED PREPARATION A. Newly Graded Subgrades: Loosen subgrade to a minimum depth of 4 inches. Remove stones and sticks, roots, rubbish, and other extraneous matter one inch or greater in size to 6 inches deep and legally dispose of them. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 1. Apply soil amendments and fertilizer on surface, and thoroughly blend planting soil mix. B. Finish Grading: Grade planting areas to a smooth, uniform surface plane with loose, uniformly fine texture. Grade to within plus or minus 1/2 inch of finish elevation. Roll and rake, remove ridges, and fill depressions to meet finish grades. Limit fine grading to areas that can be planted in the immediate future. C. Moisten prepared lawn areas before planting if soil is dry. Water thoroughly and allow surface to dry before planting. Do not create muddy soil. D. Restore areas if eroded or otherwise disturbed after finish grading and before planting. 3.2 SEEDING A. 10 to 14 days prior to cultivating, apply herbicide to all disturbed areas to be seeded that have sprouted weeds. B. Sow seed at the rate of 6 to 8 lb/1000 sq. ft. Seed in two directions with seed drill or slit seeder, using one-half of seed in both directions. C. Sowing rates vary with grass species and mixtures. Revise first paragraph below to suit Project. D. Seeding shall not be done in the presence of free surface water resulting from rain, snowmelt, or other causes. E. Do not seed or mulch within 36 inches of tree trunks. F. Manual Seeding: 1. Need spec on drill seeding 2. Must use bi-directional seeding pattern END OF SECTION ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI IRRIGATION SYSTEMS PART 4 - GENERAL 4.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 4.2 SUMMARY A. This Section includes piping, valves, sprinklers, specialties, controls, and wiring for automatic- control irrigation system. B. System to be design/build by Contractor. Specifications apply to those components and devices listed herein that are incorporated in system design. 4.3 DEFINITIONS A. Lateral Piping: from control valves to sprinklers and specialties. Piping is under pressure during flow. B. Irrigation Mainline Piping: from point of connection to water distribution piping to, and including, control valves. Piping is under water-distribution-system pressure. C. Point of Connection (POC): Point where irrigation system connects to water source. 4.4 PERFORMANCE REQUIREMENTS A. The irrigation system must be designed in the field based on the minimum operating pressure produced by the well. The irrigation Contractor shall verify water pressure prior to construction. Report any difference between the water pressures indicated in the well log and the actual pressure reading at the irrigation point of connection to the Owner. B. No zone in the system shall be designed to exceed 35 gallons per minute. C. All irrigation zones must be designed for matched precipitation rates. D. Watering window must be designed to not exceed 8 hours a day, four days a week scheduled at peak ET rate for plant material. Watering window hours are between 11:00 pm and 6:00 am for playfield areas. Boulevards, parking areas, trail corridors and planting beds may exceed these times with project manager written approval on a case by case basis. E. The irrigation system must provide full head-to-head coverage in all areas using pop-up sprinkler heads. Triangular or rectangular head layout may be used as appropriate per the existing and/or proposed site conditions. 4.5 SUBMITTALS A. Product Data: Include manufacturer's product sheets for proposed models of the following: ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 1. Valves. 2. Control-valve boxes. 3. Sprinklers. 4. Irrigation specialties. 5. Controllers. 6. VFD’s. 7. Pumps and pump starters. 8. Screens and or filters. 9. Blow off’s and pressure reducing valves. B. Shop Drawings: Show irrigation system piping, including plan layout, and locations, types, sizes, capacities, and flow characteristics of irrigation system piping components. Include water meters, backflow preventers, valves, piping, sprinklers and devices, accessories, controls, and wiring. Show areas of sprinkler spray and overspray. Show wire size and number of conductors for each control cable. C. As-Built Drawings: After installation, amend shop drawing as necessary to create reproducible document showing irrigation system components as installed per scale. D. Field quality-control test reports, submitted within 1 week of testing. E. Operation and Maintenance Data: For irrigation systems, to include in emergency, operation, and maintenance manuals. In addition to items specified in Division 1 Section "Closeout Procedures", include data for the following: 1. Automatic-control valves. 2. Sprinklers. 3. Controllers for both irrigation and pumps. 4. Pumps, pump starters, variable frequency drives and appurtances 4.6 QUALITY ASSURANCE A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. PART 5 - PRODUCTS 5.1 MANUFACTURERS A. The following requirements apply to product selection: 1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified. 2. Manufacturers: Subject to compliance with requirements, provide products by one of the manufacturers specified. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 5.2 PIPES, TUBES, AND FITTINGS A. PVC Pipe: ASTM D 1785, PVC 1120 compound, Schedule 40. 1. PVC Socket Fittings, Schedule 40: ASTM D 2466. B. PVC Pipe: ASTM D 1785, PVC 1120 compound, Schedule 80. 1. PVC Socket Fittings, Schedule 80: ASTM D 2467. 2. PVC Threaded Fittings: ASTM D 2464. C. PE, Controlled OD Pipe: ASTM F 771 and ASTM D 3035, PE 3408 compound. 1. PE Socket Fittings: ASTM D 2683. 2. PE Butt-Fusion Fittings: ASTM D 3261. D. PE, Controlled ID Pipe: ASTM F 771 and ASTM D 2239; PE 3408 compound. 1. Insert Fittings for PE Pipe: ASTM D 2609, PA or PP. Include bands or other fasteners. 5.3 SPECIALTY VALVES A. Plastic Automatic Control Valves: Molded-plastic body, normally closed, diaphragm type with manual flow adjustment, and operated by 24-V ac solenoid. 1. Manufacturers: a. Rain Bird Sprinkler Mfg. Corp. only b. For 1" to 1 1/2", use Rain Bird PEB series control vales c. For 2" and above, use Rain Bird EFB series control valves B. Quick-Couplers: Factory-fabricated, bronze or brass, two-piece assembly. Include coupler water-seal valve; removable upper body with spring-loaded or weighted, rubber-covered cap; hose swivel with ASME B1.20.7, 3/4-11.5NH threads for garden hose on outlet; and operating key. 1. Manufacturers: a. Rain Bird Sprinkler Mfg. Corp. only b. Use 1" Rain Bird 44 LRC Quick Couplers 5.4 CONTROL-VALVE BOXES A. Plastic Control-Valve Boxes: Box and cover, with open bottom and openings for piping; designed for installing flush with grade. Include size as required for valves and service. 1. Sidewall Material: PE, ABS, or FRP. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 2. Cover Material: PE, ABS, FRP, or polymer concrete. 3. Available Manufacturers: a. Armorcast Products Co. b. Carson Industries LLC. B. Polymer-Concrete Control-Valve Boxes: Box and cover, with open bottom and openings for piping; designed for installing flush with grade. Include size as required for valves and service. 1. Sidewall Material: Polymer concrete with lateral and vertical sidewall design loading of 5000 lb minimum over 10 by 10 inches square. 2. Cover Material: Polymer concrete with cover design loading of 5000 lb minimum over 10 by 10 inches square. a. Lettering: IRRIGATION. 3. Available Manufacturers: a. Armorcast Products Co. b. Carson Industries LLC. C. Drainage Backfill: Cleaned gravel or crushed stone, graded from 3/4 inch minimum to 3 inches maximum. 5.5 SPRINKLERS A. Description: Plastic housing and corrosion-resistant interior parts designed for uniform coverage over entire spray area indicated, at available water pressure. 1. Manufacturers: a. Rain Bird Sprinkler Mfg. Corp only 2. Pop-up, Spray Sprinklers: Fixed pattern, with screw-type flow adjustment and stainless- steel retraction spring. a. Use Rain Bird 1800 series with Rain Bird nozzles 3. Pop-up, Rotary, Spray Sprinklers: Gear drive, full-circle and adjustable part-circle types. a. Use Rain Bird Falcon 6504 Series Rotors, 7005 Series Rotors, or 8005 Series Rotors as appropriate. 5.6 AUTOMATIC-CONTROL SYSTEM A. Manufacturers: 1. Rain Bird Sprinkler Mfg. Corp. only ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI B. Exterior Control Enclosures: NEMA 250, Type 4, weatherproof, with locking cover and two matching keys; include provision for grounding. Pedestal mounted in landscape. 1. Enclosure: Enameled-steel, sheet metal. 2. Mounting: Freestanding type for concrete-base mounting. C. Controller shall be fitted with TRC remote circuit board installed within the ESP controller providing for fully functioning remote operation of the controller. D. Interior Control Enclosures: NEMA 250, Type 12, drip-proof, with locking cover and 2 matching keys. 1. Material: [Enameled-steel, sheet metal, stainless-steel, sheet metal, or molded plastic. This is to be coordinated during the design process and approved by the Owner. 2. Mounting: Freestanding type for concrete-base or surface type for wall mounting. This is to be coordinated during the design process and approved by the Owner. E. Control Transformer: 24-V secondary, with primary fuse. F. Increase station time settings in first paragraph below as required for drip applications. G. Controller Stations for Automatic Control Valves: Adjustable, 24-hour, 14-day clock, with automatic operations to skip operation any day in timer period, to operate every other day, or to operate 2 or more times daily. 1. Electrical Contractor to supply 120 VAS (2.5 AMP) service to controller location. Irrigation Contractor is to make the final connection from the electrical stub-out to the controller. This is to be coordinated with the Owner. 2. Valve locations are to be determined in the field and reviewed and approved by the Owner. 3. Manual or Semiautomatic Operation: Allows this mode without disturbing preset automatic operation. 4. Nickel-Cadmium Battery and Trickle Charger: Automatically powers timing device during power outages. 5. Available Manufacturers: a. Rain Bird Sprinkler Mfg. Corp. only b. Use Rain Bird ESP – MC Series Controllers 6. Remote control valves shall be wired to controller in sequence. Run wire from each control valve to the controller. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI H. Wiring: UL 493, Type UF-B multi-conductor, with solid-copper conductors and insulated cable; suitable for direct burial. 1. Available Manufacturers: a. AFC Cable Systems Inc. b. Alcatel Canada Wire, Inc. c. American Electric Cable Co. d. American Insulated Wire Corp. e. Cerro Wire & Cable Co., Inc. f. Colonial Wire and Cable Co., Inc. g. Essex Group, Inc.; Building Wire Products Division. h. Precision Cable Manufacturing Co., Inc. i. Southwire Company. j. Triangle Wire and Cable Co. 2. Splicing 24-volt wires together outside of valve boxes will not be permitted. 3. Leave 24 inches of excess wire neatly coiled at each splice and every 100 feet along the wire run in the instance control valves are more than 100 feet apart. 4. Feeder-Circuit Cables: No. 12 AWG minimum, between building and controllers. 5. Low-Voltage, Branch-Circuit Cables: No. 14 AWG minimum, between controllers and automatic control valves; color-coded different from feeder-circuit-cable jacket color; with jackets of different colors for multiple-cable installation in same trench as follows: Wire Type Color Number Zone Wires Red Per number of Zones Spare Zone Wires Black Minimum of 4 Common Wire White 1 per Controller Spare Common Wire Yellow Minimum of 1 Master Valve Wires Blue Per number of Master Valves a. The yellow spare common wire is to run the entire length of the mainline. Loop 36 inches of excess wire into each single valve box and into one valve box where boxes are closely grouped. b. Controller grounding must be tested to meet MFG specifications. c. Bundle wires with tape every 10 feet on center. Do not bundle wires inside sleeves. 6. Splicing Materials: Manufacturer's packaged kit consisting of insulating, spring-type connector or crimped joint and epoxy resin moisture seal; suitable for direct burial. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI PART 6 - EXECUTION 6.1 EARTHWORK A. Refer to Division 2 Section "Earthwork" for excavating, trenching, and backfilling. B. Install piping and wiring in sleeves under all paved surfaces. C. Provide minimum cover over top of underground piping according to the following: 1. Irrigation Mainline Piping: Minimum depth of 24 inches below finished grade. Top of mainline pipe shall be 20 inches or more below finished grade. 2. Lateral Line Piping: 18 inches below finished grade. 6.2 PIPING APPLICATIONS A. Piping in control-valve boxes and aboveground may be joined with flanges instead of joints indicated. B. Underground Irrigation Mainline Piping: Schedule 40, PVC pipe and socket fittings; and solvent-cemented joints. C. Lateral Piping: Schedule 40, PVC pipe and socket fittings; and solvent-cemented joints. 1. Pulled 1 inch polly pipe may be permitted upon review and approval of the Owner. D. Risers to Aboveground Sprinklers and Specialties: Schedule 80, PVC pipe and socket fittings; and solvent-cemented joints. E. Sleeves: Class 200 PVC pipe; and socket fittings and solvent-cemented joints. 6.3 VALVE APPLICATIONS A. Aboveground, Shutoff-Duty Valves: 1. NPS 2and Smaller: Bronze or Plastic ball valve. B. Underground, Shutoff-Duty Valves: Use the following: 1. NPS 2 and Smaller: Curb stop with tee head, curb-stop service box, and shutoff rod. 2. NPS 3 and Larger: AWWA cast-iron gate valve with elastomeric gaskets and stem nut, valve box, and shutoff rod. C. Underground, Manual Control Valves: Bronze globe valve with control-valve box and valve key. D. Control Valves: Ball valve. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI 6.4 POINT OF CONNECTION INSTALLATION A. A pressure release valve must be installed on any irrigation system with a well as the water source. B. The POC configuration must include winterization connections. A blow out connection constructed must be installed of a 1 inch galvanized, riser with a treaded male nipple and galvanized cap. A 1 inch quick coupler and a drain valve must be installed for winterization. 6.5 IRRIGATION PIPE INSTALLATION A. All mainline and lateral piping must be inspected and approved by the Owner before trenches are backfilled. The Contractor must leave trenches open with all joints, fittings, sprinklers, valves, valve boxes, thrust blocks, wiring, etc. exposed for Owner's review and approval. Trenches may not be backfilled until the Contractor receives written approval from the Owner. The Contractor will be asked to excavate any backfilled work that occurs before Owner approval. It is not necessary that the entire system be exposed for inspection at one time. Coordinate inspections and approvals with the Owner or the Owner's representative. B. All mainline and lateral pipes must be bedded in clean sand. All trenches must include a minimum of 2 inches of clean sand below and above the pipe. C. Install piping free of sags and bends. Lay piping on clean sand subbase, uniformly sloped without humps or depressions. D. Install groups of pipes parallel to each other, spaced to permit valve servicing. E. Install fittings for changes in direction and branch connections. F. All sections of PVC pipe in trenches between fittings must be laid in a straight horizontal line. PVC pipe with horizontal bends will not be permitted or approved by the Owner. It will be the responsibility of the irrigation Contractor to replace or correct any PVC line that is not straight. G. Install unions adjacent to valves and to final connections to other components. 6.6 VALVE INSTALLATION A. Underground Gate Valves: Install in valve box with top flush with grade. B. Underground Curb Stops: Install in service box with top flush with grade. C. Underground, Manual Control Valves: Install in manual control-valve box. D. Control Valves: Install in control-valve box. E. Install valve boxes a minimum of 12 inches from and perpendicular to any walk, curb, lawn, building or landscape feature. At multiple valve box groups, each box shall be an equal distance from any adjacent feature and shall be a minimum of 12 inches apart. The short side of valve boxes shall be parallel to any adjacent feature. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI F. Locate quick coupler valves 12 inches from any hardscape feature. The number and location of quick coupler valves will be determined in the field and reviewed and approved by the Owner. 6.7 SPRINKLER INSTALLATION A. All pop-up spray and rotor sprinklers must be installed perpendicular to the finish grade unless otherwise indicated on the plans. In any areas where drainage from heads may cause erosion and excess water, use sprinkler models that include an internal check valve. B. All zones must be designed and laid out to avoid overspray onto hardscape surfaces, buildings and other non-irrigated landscape features. C. Flush all circuit piping with full head of water and install sprinklers after hydrostatic test is completed. D. Locate part-circle sprinklers to maintain a minimum distance of 4 inches from walls and 2 inches from other boundaries, unless otherwise indicated. 6.8 AUTOMATIC-CONTROL SYSTEM INSTALLATION A. Install freestanding controllers on precast concrete bases not less than 36 by 24 by 4 inches thick, and not less than 6 inches greater in each direction than overall dimensions of controller. B. Install control cable in same trench as irrigation piping and at least 2 inches below and beside piping. Provide conductors of size not smaller than recommended by controller manufacturer. Install cable in separate sleeve under paved areas if irrigation piping is installed in sleeve. 6.9 FIELD QUALITY CONTROL A. Perform the following field tests and inspections and prepare test reports: 1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no leaks exist. 2. Operational Test: After electrical circuitry has been energized, operate controllers and automatic control valves to confirm proper system operation. 3. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment. B. Remove and replace all faulty units and retest as specified above. 6.10 ADJUSTING A. Adjust settings of controllers to work within the operating window stated above. B. Adjust automatic control valves to provide flow rate of rated operating pressure required for each sprinkler zone. ---PAGE BREAK--- Playfair Park Irrigation Upgrades and Expansion PR 10-02 PI C. Adjust sprinklers so they will be flush with, or not more than 1/2 inch above, finish grade. D. The irrigation Contractor shall flush and adjust all sprinkler heads for optimum performance and to prevent overspray onto paved surfaces, buildings and any non-irrigated landscape features as much as possible. This shall include selecting and adjusting to the best degree of arc to fit the existing site conditions and to throttle the flow control at each valve to obtain the optimum operating pressure for each zone. E. When vertical obstruction interfere with the spray patterns of the sprinkler head so as to prevent proper coverage, the irrigation Contractor shall field adjust the sprinkler system by installing the appropriate sprinklers and nozzles on either side of the obstruction for full coverage. All such adjustments shall be made at no additional cost to the Owner. END OF SECTION ---PAGE BREAK--- 0 100 200 300 400 500 50 Feet Legend Property Boundaries 1 inch = 50 feet THIS MAP IS ILLUSTRATIVE IN NATURE. PROPERTY LINES SHOWN ON THIS MAP DO NOT REPRESENT EXACT BOUNDARIES ON THE GROUND. PLAYFAIR PARK - IRRIGATION NOTES ² WELL AND PUMP CONTROLS FIELD 3 CONVERT FROM QUICK COUPLER SYSTEM TO AUTOMATED. FIELD 4 CONVERT FROM QUICK COUPLER SYSTEM TO AUTOMATED. FIELD 5 CONVERT FROM QUICK COUPLER SYSTEM TO AUTOMATED. NEW BASEBALL PARKING LOT AREA INCLUDING PARKING ISLANDS. SPLASH PARKING & PICKNIC SHELTER AREA INCLUDING PARKING ISLANDS. INCLUDE BOULEVARD AREA