Attach J.3 Project Specs.doc

Attach J.3 Project Specifications

1 DESCRIPTION OF WORK

Turquoise Water System Rehab The Turquoise Water System is comprised of two wells, a 150,000 gallon water storage tank, approximately 24,000 lf of cast iron water main, and approximately 4000 lf of plastic water line. Work included in this contract consists of the following:

1. Professionally located all of the existing cast iron water mains (approx. 24,000 lf), and all of the gate valves in the water system.

2. Replace all of the gate valves in the cast iron portion of the water system.

3. Replace 800 lf of existing PVC pipe leading to the Tabor Boat Ramp with 2” HDPE pipe, and replace 2200 lf of existing PVC pipe servicing the Printer Boy Campground with 2” HDPE pipe.

4. Install a 4” compound water meter including a precast concrete manhole.

5. Rehabilitate the Turquoise #2 well by removing sediment at the bottom of the well, televising the inside of the well, replacing the well screen, and replacing the existing turbine pump with a submersible pump.

2 PROJECT LOCATION

From Leadville, Colorado, travel west on County Rd 9 for approximately 3 miles to the intersection of County Rd 9C (Turquoise Lake Rd). See Vicinity Map.

3 PREBID CONFERENCE

See Section L, FAR 52.236-27, for information pertaining to a pre-bid conference.

The following Specifications apply to this project and are physically included in this section:

DIVISION 1 - GENERAL REQUIREMENTS

Section 01430 Contractor Quality Control

Section 01600 Use of Government Facilities, Utilities, Etc.

Section 01900 Measurement and Payment

DIVISION 2 - SITE WORK

Section 02221 Trenching, Backfilling, and Compacting

Section 02222 Structural Excavation, Backfill and Compaction

Section 02510 Water Distribution

Division 3 – CONCRETE

Section 3305 Concrete for Minor Structures

DIVISION 11 – EQUIPMENT

Section 11260 Disinfection Feed Equipment

DIVISION 15 – MECHANICAL

Section 15207 Domestic Water Wells

SECTION 01430

CONTRACTOR QUALITY CONTROL

PART 1

GENERAL

1.1 DESCRIPTION

A. The work of this section consists of preparing and executing a quality control program.

1.2 SUBMITTALS

A. Quality Control Plan:

1. At the time of the preconstruction conference, submit for approval a written Contractor Quality Control (CQC) plan.

2. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days.

3. No change in the approved plan may be made without written concurrence by the Contracting Officer.

4. The plan shall include:

a. A list of personnel responsible for quality control and assigned duties. Include each person's qualifications.

b. Name, qualifications, and description of firm engaged to perform construction inspection work.

c. Methods of performing, documenting, and enforcing quality control of all work.

1.3 QUALITY ASSURANCE

A. General:

1. The quality of all work shall be the responsibility of the Contractor.

2. Contractor shall hire an independent inspection firm regularly engaged in construction inspection to perform construction inspection of all underground utilities installed under this contract. Underground utilities requiring inspection from an independent firm include valves, waterline, water meter and manhole.

3. Construction inspection performed by the independent firm shall be under the direction of a Colorado Licensed Professional Engineer.

4. The independent firm shall inspect all work to ensure that the quality of materials, workmanship, construction, finish, and functional performance is in compliance with applicable specifications and drawings. No underground utilities shall be backfilled prior to approval of the inspection firm.

5. Quality Control Reports, including photos, shall be submitted for each valve, water meter and manhole, and section of waterline installed.

6. Inspection reports shall be completed by person performing inspection. Payment for work will not be made until a letter, signed by the Licensed Engineer in charge, is received stating that all work for which payment is requested was completed in accordance with the drawings and specifications.

B. Quality Control Staff:

Spec writer: select paragraph 1 for smaller projects, normally less than 1 million dallars, that are not complex and do not require extensive sampling and testing. Discuss with appropriate DSC Quality leader of construction.

1. The Contractor’s Quality Control Supervisor may also perform the duties of Project Superintendent.

spec writer: select paragraph 2 for major projects, normally 1 million dollars and above, or for ocmplex projects that require extensive sampling and testing and off-site fabrication. Discuss with appropriate dsc quality leader of construction.

PART 2

PRODUCTS

Not used.

PART 3

EXECUTION

1.4 OFF-SITE CONTROL

A. Contractor shall provide certifications for products produced offsite, stating that the product is in compliance with project drawings and specifications.

1.5 DOCUMENTATION

A. Maintain Quality Control Reports.

B. Quality Control Reports may not be substituted for other written reports required under clauses of the contract, such as Disputes, Differing Site Conditions, or Changes.

1.6 ENFORCEMENT

A. The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by independent inspection firm or the Contracting Officer.

END OF SECTION 01430

DIVISION 1 - GENERAL REQUIREMENTS

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01600 - USE OF GOVERNMENT FACILITIES, UTILITIES, ETC.

GENERAL

1.01Scope: Applies to Government facilities at the worksite available for use by the Contractor.

1.02Storage Area: Storage for Contractor's materials and equipment, if required, may be at the project area, where approved by the Engineer. The Government shall not be responsible for Contractor's materials or equipment stored on Government property.

1.03Utilities: Electrical power will be available in reasonable quantities for work at the Turquoise Well house. Electrical power will not be available for other portions of the project. Sanitation facilities shall not be available. The Contractor shall furnish and use his own facilities at the worksite. Such facilities shall comply with applicable state and federal rules, laws, codes, and regulations relative to such use.

1.04Work Camp: Authorization from the Leadville Ranger District must be obtained prior to use of any National Forest lands by the Contractor as a work camp or for camping of Contractor personnel during construction.

PRODUCTS NOT USED

EXECUTION NOT USED

01600 – 1

END OF SECTION

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01900 - MEASUREMENT AND PAYMENT

GENERAL

1.01Scope: Applies to method of measurement and basis of payment for work items listed in the Schedule Of Items.

1.02Work: Consists of furnishing all labor, materials, equipment, and other incidentals necessary to successfully complete the project or any portion of it and carrying out all duties and obligations imposed by the contract on the Contractor.

1.03Payment: For each individual item listed here and in the Schedule Of Items, payment will be full compensation for all work related to the particular item in accordance with these Specifications, as shown on the drawings, and as staked in the field.

1.04 Pay Items: The method of measurement will be as listed below:

Item 1 4” Gate Valve Replacement: 6-9 Ft. Burial Depth Measurement: 4” Gate Valve Replacement: 6-9 Ft. Burial Depth, will be measured as actual quantity of each valve replaced, complete in place, as show on the drawings and described in the specifications.

Payment: 4” Gate Valve Replacement: 6-9 Ft. Burial Depth will be paid for at the contract unit price for each unit installed. Payment shall include excavation, removal and disposal of existing valve, saw cutting existing cast iron pipe, furnishing and installing flanged ductile iron pipe stubs and couplings, valve, valve box, concrete, backfilling, and final cleanup. Burial depth will be measured from top of pipe to finished ground.

Item 2 4” Gate Valve Replacement: 9-12 Ft. Burial Depth Measurement: 4” Gate Valve Replacement: 9-12 Ft. Burial Depth, will be measured as actual quantity of each valve replaced, complete in place, as shown on the drawings and described in the specifications.

01900-1

Payment: 4” Gate Valve Replacement: 6-9 Ft. Burial Depth will be paid for at the contract unit price for each unit installed. Payment shall include excavation, removal and disposal of existing valve, saw cutting existing cast iron pipe, furnishing and installing flanged ductile iron pipe stubs and couplings, valve, valve box, concrete, backfilling, and final cleanup. Burial depth will be measured from top of pipe to finished ground.

Item 3 6” Gate Valve Replacement: 6-9 Ft. Burial Depth Measurement: 6” Gate Valve Replacement: 6-9 Ft. Burial Depth, will be measured as actual quantity of each valve replaced, complete in place, as shown on the drawings and described in the specifications.

Payment: 6” Gate Valve Replacement: 6-9 Ft. Burial Depth will be paid for at the contract unit price for each unit installed. Payment shall include excavation, removal and disposal of existing valve, saw cutting existing cast iron pipe, furnishing and installing flanged ductile iron pipe stubs and couplings, valve, valve box, concrete, backfilling, and final cleanup. Burial depth will be measured from top of pipe to finished ground.

Item 4 8” Gate Valve Replacement: 6-9 Ft. Burial Depth Measurement: 8” Gate Valve Replacement: 6-9 Ft. Burial Depth, will be measured as actual quantity of each valve replaced, complete in place, as show on the drawings and described in the specifications.

Payment: 4” Gate Valve Replacement: 6-9 Ft. Burial Depth will be paid for at the contract unit price for each unit installed. Payment shall include excavation, removal and disposal of existing valve, saw cutting existing cast iron pipe, furnishing and installing flanged ductile iron pipe stubs and couplings, valve, valve box, concrete, backfilling, and final cleanup. Burial depth will be measured from top of pipe to finished ground.

Item 5 8” Gate Valve Replacement: 9-12 Ft. Burial Depth Measurement: 8” Gate Valve Replacement: 9-12 Ft. Burial Depth, will be measured as actual quantity of each valve replaced, complete in place, as show on the drawings and described in the specifications.

Payment: 8” Gate Valve Replacement: 9-12 Ft. Burial Depth will be paid for at the contract unit price for each unit installed. Payment shall include excavation, removal and disposal of existing valve, saw cutting existing cast iron pipe, furnishing and installing flanged ductile iron pipe stubs and couplings, valve, valve box, concrete, backfilling, and final cleanup. Burial depth will be measured from top of pipe to finished ground.

01900-2

Item 6 2” Potable Water Line Measurement: The measurement of pipe will be measured as the actual quantity in lineal feet of pipe, complete and in place, as shown on the drawings and described in the specifications.

Payment: Payment for the potable water pipe will be paid for at the contract unit prices for each lineal foot of pipe installed. Payment shall include excavation including pavement cuts, removal and disposal of existing pipe, trench excavation, laying and bedding of pipe, special bedding material, connecting to existing water lines, testing, fittings, backfilling, restoration of campsites to original condition, and final cleanup.

Item 7 2" Potable Water Valve W/Box Measurement: Potable water valves will be measured as actual quantity of each valve installed, complete in place, as show on the drawings and described in the specifications.

Payment: Potable water valves will be paid for at the contract unit price for each unit installed. Payment shall include excavation, furnishing and installing valve, valve box, concrete, all piping within 5 ft. of valve, all fittings required to connect to HDPE pipe, backfilling, and final cleanup

Item 8 4” Water Meter and Manhole Measurement: 4” Water Meter and Manhole, will be measured as actual quantity of each water meter and vault installed, complete in place, as show on the drawings and described in the specifications.

Payment: 4” Water Meter and Vault will be paid for at the contract unit price for each unit installed. Payment shall include excavation; saw cutting existing cast iron pipe; furnishing and installing reducers; funishing and installing 2 each 4” gate valves outside the precast concrete manhole; constructing concrete thrust blocks, furnishing and installing precast concrete manhole and manhole ring and cover; furnishing and installing 4” compound water meter, strainer, wye strainer, dismantling joint, and all other piping as shown on the drawing; installing 2 each remote readers, enclosure, conduit and conductors; backfilling, and final cleanup; all other necessary work to provide a complete and operational water meter.

01900-3

Item 9 Pipe and Valve Location Measurement: Pipe and Valve Location will be measured as a Lump Sum Quantity.

Payment: Pipe and Valve Location will be paid for at the lump sum price for locating all valves shown on sheet 2 of the drawings, and locating all cast iron pipes shown on sheet 2 of the drawings. Pipe location shall start at the Turquoise Well houses and continue throughout the pipe system. Payment shall include marking every valve on the ground with a painted 4 ft. section of lath, and providing GPS coordinates, accurate to a foot, for every valve; providing GPS coordinates accurate to a foot, and estimated depth of pipe at the Turquoise Pumphouses and at every change in direction of the pipline.

Item 10 Quality Control Measurement: Quality Control will be measured as a Lump Sum Quantity.

Payment: Quality Control will be paid for at the lump sum price for performing all quality control work specified in Section 01430.

Note: Pay Items 11-18 Pertain to Work on the Turquoise Well Item 11 Removal of Existing Pump and Piping Measurement: Removal of Existing Pump and Piping will be measured as a Lump Sum Quantity.

Payment: Removal of Existing Pump and Piping will be paid for at the lump sum price for removal and disposal of the existing turbine pump, motor, and all associated piping as shown on the drawing; removal of the pumphouse roof to remove the pump; re-installation of the pumphouse roof.

Item 12 Furnishing and Installation of Pump Measurement: Furnishing and Installation of Pump will be measured as a Lump Sum Quantity.

Payment: Furnishing and Installation of Pump will be paid for at the lump sum price for furnishing and installing the new submersible pump and motor, galvanized steel drop pipe, and well seal; furnishing and installing the magnetic starter; all electrical wiring necessary to provide for a complete pump installation.

Item 13 Furnishing and Installation of Disinfectant Feed Equipment Measurement: Furnishing and Installation Disinfectant Feed Equipment will be measured as a Lump Sum Quantity.

01900-4

Payment: Furnishing and Installation of Disinfectand Feed Equipment will be paid for at the lump sum price for furnishing and installing disinfectant feed equipment including chemical meter in pump, pump repair kit, check valves and tubing, solution tank, auto-prime valve, foot valve, injection valve, chlorine residual test kits, emergency eye wash station, safety goggles, wye strainer, flow meter, check valve, pressure gage, ball valves, tees and all piping between the 2” galvanized drop pipe and the existing 4” cast iron flanged 90 degree elbow.

Item 14 Removal of Existing Well Screen Measurement: Removal of Existing Well Screen will be measured as a Lump Sum Quantity.

Payment: Removal of Existing Well Screen will be paid for at the lump sum price for furnishing equipment and labor to remove the existing well screen.

Item 15 Removal of Sand and Gravel Measurement: Removal of Sand and Gravel will be measured as a Lump Sum Quantity.

Payment: Removal of Sand and Gravel will be paid for at the lump sum price for furnishing equipment and labor to remove the sand and gravel to the bottom of the well casing.

Item 16 Furnishing and Installation of Well Screen Measurement: Furnishing and Installation of Well Screen will be measured as the actual quantity in lineal feet of Well Screen installed. Measurement shall be made from the bottom of the well screen to its connection with the well casing.

Payment: Furnishing and Installation of Well Screen will be paid for at the unit price for furnishing equipment, labor, and materials for installing and joining Well Screen.

01900-5 Item 17 TV Inspection of Existing Well Casing Measurement: TV Inspection of Existing Well Casing will be measured as a Lump Sum Quantity.

Payment: TV Inspection of Existing Well Casing will be paid for at the lump sum price for furnishing equipment and labor to televise and record the inside of the well casing and well screen.

Item 18 Disinfection Measurement: Disinfection will be measured as a Lump Sum Quantity.

Payment: Disinfection will be paid for at the lump sum price for furnishing equipment, labor and materials to disinfect the well as specified.

01900 – 6

END OF SECTION

DIVISION 2 - SITE WORK

SECTION 02221 - TRENCHING, BACKFILLING AND COMPACTING

GENERAL

1.01Scope: Includes excavating, trenching, backfilling and compacting for the installation of utility lines to the depths and dimensions shown on the drawings.

1.02 Related Work Specified in Other Sections:

Section 02510 – Water Distribution

1.03 Protection:

A. Maintain the excavations to guard against and prevent injury to employees and the public. Provide adequate shoring and bracing as required.

B Protect the excavation from frost action. Compact ground that has frozen and subsequently thawed as specified herein.

C.

Prevent water accumulation in excavations. If clay soil becomes saturated, compact after it has dried as specified herein.

D Protect existing underground utilities from damage. Minimum depth of soil cover for utility lines (measured from the top of the pipe, conduit, or cable to final construction ground elevation required):

2. Water lines – Same depth as existing water lines.

PRODUCTS

2.01 Special Bedding: Colorado Department of Transportation (CDOT) Class 6 Road Base.

02221 – 1

2.02 Initial Backfill: Colorado Department of Transportation (CDOT) Class 6 Road Base.

2.03 Subsequent Backfill: Earth material free from large rock over 8 inches in diameter, frozen earth, clods, debris, or material with an exceptionally high void content.

2.04Underground Detection Tape: Two inches wide, 1 1/2 mil thick aluminum foil with a polyethylene covering on one side, nonluminescent and colorfast.

The tape shall have the following inscription permanently written on a colored background:

WARNING - BURIED WATER LINE BELOW

For the tape inscription similar wording with identical meaning shall be approved. The inscription shall be repeated consecutively along the entire length of the tape.

Tape shall be Detectable Terra Tape as manufactured by Reef Industries, P.O. Box 750218, Houston, TX 77275, (713) 943-2670, or approved equal.

EXECUTION

3.01 Excavation:

A. The sides of trenches shall be kept as nearly vertical as practicable. Trenches deeper than 5 feet shall be sloped or otherwise supported safely. Perform all excavation in accordance with CFR 29 Part 1926.652.

B.

Excavation shall be stopped above the final invert grade elevation so the pipe may be laid on a firm, undisturbed, native earth bed, except in rock, water-bearing earth, or where a granular or concrete base is required by the drawings and specifications.

B. The trench bottom at pipe joints shall be properly excavated to insure adequate bearing of the pipe barrel along its entire length. Care shall be taken not to excavate below the depth required to obtain the specified minimum depth of cover. If over-excavation occurs the excess depth shall be backfilled with moist earth or sand and tamped to a density at least equal to that of the surrounding earth.

02221 – 2

D.

Trenches shall be dry when the trench bottom is prepared. A continuous trough shall be pared or excavated to receive the bottom quadrant of the pipe barrel. In addition, holes shall be excavated for pipe bells so that after placement only the barrel of the pipe receives bearing pressure from the trench bottom. Bell holes shall be excavated such that pipe barrels rest on undisturbed earth.

E.

Preparation of the trench bottom shall be carefully completed so that when the pipe is in final position, it is true to line and grade. The prepared trench bottom shall be free of sharp rocks and debris that may damage the pipe. All rocks greater then 3/4" shall be removed.

F. Depressions in the trench bottom shall be excavated with hand tools to accommodate valves, fittings, etc.

3.02Underground Detection Tape:

A.

General: Detection tape shall be buried with the inscription side up, directly above and for the full length of each individual buried water or sewer line it identifies.

B.

Cover of 3 feet or less: Bury detection tape as follows:

1.

Plastic pipe: Detection tape at not more than 12 inches below finished ground elevation.

C.

Cover more than 3 feet: Bury detection tape as follows:

1.

Plastic pipe at 12 inches below the finished ground elevation.

3.03Backfilling:

A. Waterline Burial

1.

Place water lines on undisturbed earth unless the undisturbed earth does not meet initial backfill requirements as in paragraph 2.02. Engineer may require special bedding material at a 4" depth below the pipe 2.

Special bedding shall be installed to the full width of the trench bottom to a minimum depth of 4” below the pipe and across the trench (four (4) inches minimum depth in any case), and around the pipe to fully support the lower half of the pipe. Compact each layer in 6” maximum lifts as follows: The bedding material shall be moistened or dried to a uniform moisture content greater than 7% suitable for compaction. A whacker type compactor shall be operated over the full width of each layer until visual displacment ceases, but now fewer than 6 complete passes.

02221 – 3

3.

As soon as possible after individual pipe is jointed, sufficient backfill material shall be placed along each side of the pipe to offset conditions that might tend to move the pipe off line and grade. This material shall be compacted to the density specified in A.2. above.

4.

Backfill shall not be completed until pressure and/or leakage tests have been performed and the pipeline is approved by the Engineer. Sufficient backfill shall be placed to prevent pipe movement under pressure tests. This backfill shall be tamped to the density specified in paragraph A.2. All joints, valves, etc., shall remain uncovered for inspection purposes during testing.

5.

The initial backfill over the pipe and all backfill around the pipe shall be placed by hand and tamped. Initial backfill shall be 12” thick around all valves and valve boxes. All initial backfill shall be placed in six (6) inch layers and each layer shall be compacted to the density specified in Paragraph A.2.

B. All Utilities

1.

Subsequent backfill shall be deposited and carefully compacted in layers not to exceed six (6) inches in thickness. Backfill shall be compacted to the density specified in Paragraph A.2.

2.

Six (6) inches of topsoil shall be deposited as final backfill in trench areas where this material had been previously stripped and stockpiled. This topsoil layer shall be compacted sufficiently to remain in place but remain loose enough to allow plant growth.

At any location where backfill has more than 6 inches of settlement, the settlement shall be corrected by reopening the trench to the depth required for proper compaction and then shall be refilled and satisfactorily compacted.

4.

At any location where backfill has settled less than 6 inches below normal ground surface, the Contractor shall provide additional earth fill material to bring the trench elevation to that of normal ground surface. This material shall be compacted to the density of the undisturbed, surrounding ground.

5.

Surplus excavated material remaining on the site upon completion of the backfilling shall be utilized in embankment or removed from the site and disposed of off National Forest Lands.

6. Puddling or water flooding for consolidating the backfill will not be allowed.

The addition of water shall be limited to that needed for increasing the density of the backfill material.

02221 – 4

END OF SECTION

SECTION 02222

STRUCTURAL EXCAVATION, BACKFILL AND COMPACTION

PART 1 - GENERAL

1.1

SUMMARY

A.

Includes structural excavation, special fills, backfill, and compaction.

1.2

PROTECTION

A.

Protect excavations from accumulation of water. If clay soil becomes saturated, compact after it has dried as specified herein.

Protect excavations from freezing. If frost action occurs, compact ground after it has dried.

Provide shoring and bracing as necessary to protect structures, employees, and the public.

1.3

REFERENCES

A.

Standard Moisture Density Test AASHTO T-99, Method C or D.

PART 2 – PRODUCTS

2.1

BACKFILL AND FILLS

A.

Use the excavated material as specified below:

1.

Remove rocks over 8 inches in maximum dimension, ice or frozen earth, muck, debris, and earth with high void content.

2.

Remove rocks over 2 inches in maximum dimension for backfill placed within 12 inches of foundation.

3.

Materials removed in stripping shall not be used for backfill.

2.2

GRAVEL FILLS

A.

Clean pit-run gravel uniformly graded with less than 5% minus #200 material, 2 nches maximum size, free of deleterious materials.

PART 3 – EXECUTION

3.1

EXCAVATION

A.

Perform to the lines, grades, and elevations indicated. Extend excavation a sufficient distance from walls and footings to allow for safety, placing and removal of forms, installation of services, and for inspection. Provide proper depth with allowance made for gravel fills formed voids and concrete flatwork.

02222 – 1

1.

Bottoms for piers, footings, and foundation walls shall be level, clean, true to size, and clear of loose materials.

2.

If excavations for foundations are carried below the specified levels, extend the foundation to the excavated level.

3.2

BACKFILLING

A.

Place and compact fills and backfills adjacent to structures in such a manner as to prevent wedging action or eccentric lodging upon or against the structures.

1.

Remove forms, and clean the excavation of trash and debris prior to backfilling.

2.

Do not place backfill against any concrete footings or wall without prior permission of the Contracting Officer (CO) and in no case less than 7 days after completion of the wall or footings.

3.

Place backfill in horizontal layers not more than 12 inches thick with the proper moisture content for the required degree of compaction. Flooding or puddling not allowed. Compact each layer as specified. Backfill layer thickness under concrete flatwork limited to 6 inches maximum.

4.

Heavy equipment for spreading and compacting backfill shall not be operated closer to a wall than a distance equal to the height of the backfill above the top of the footing.

5.

Provide for anticipated settlement and shrinkage of the backfill and for the finished grades required, including topsoil grading.

6.

Prepare subgrades for gravel fill areas level and free from soft spots. Place and compact earthfill where required to raise subgrade. Place gravel to the lines and grades shown. Compact the gravel sub-base as specified until a smooth, uniform use surface is obtained.

3.3

COMPACTION

A.

Compact each layer in 6” maximum lifts as follows: Material shall be moistened or dried to a uniform moisture content greater than 7% suitable for compaction. A whacker type compactor shall be operated over the full width of each layer until visual displacement ceases, but not fewer than 6 complete passes.

02222 – 2

END OF SECTION 02222

SECTION 02510 - WATER DISTRIBUTION

PART 1 - GENERAL

1.1

SUMMARY

A.

This Section includes piping and appurtenances for potable-water service outside buildings. This Section also includes flushing, testing, and disinfecting waterlines.

1.2 Related Sections

A.

Section 02221 – Trenching, Backfilling, and Compaction 1.3

SYSTEM PERFORMANCE REQUIREMENTS

A.

Minimum Working Pressures: The following are minimum pressure requirements for piping and specialties, unless otherwise indicated:

1.

Potable-Water Service: 160 psig.

1.4

SUBMITTALS

A.

Product data which shows compliance with the reference standards for the following:

1.

Pipe and fittings

2.

Valves

4.

Curb Stop and Box

5.

Gate Valve and Box

6.

Operating Tools for Curb Stop and Gate Valve

7.

MJ Adapter

8.

Water Meter and Accessories

1.5

QUALITY ASSURANCE

A.

Comply with NSF 61, "Drinking Water System Components--Health Effects," for materials for potable water.

1. Comply with standard of authorities having jurisdiction for potable water-service piping, including materials, installation, testing, and disinfection.

1.6

DELIVERY, STORAGE, AND HANDLING

A.

Deliver piping with factory-applied end-caps. Maintain end-caps through shipping, storage, and handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture.

02510 – 1

B.

Protect flanges, fittings, and specialties from moisture and dirt.

C.

Store plastic piping protected from direct sunlight. Support to prevent sagging and bending.

1.7

SEQUENCING AND SCHEDULING

A.

Coordinate piping materials, sizes, entry locations, and pressure requirements with water distribution piping.

B.

Coordinate with other utility work.

PART 2 - PRODUCTS

2.1

GENERAL

A.

All waterlines, pipes, and fittings shall be new and unused, of the type, pressure rating or class, and size specified and as shown on the drawings.

B.

All material must meet applicable National Sanitation Foundation (NSF) standards for public drinking water. The manufacturer shall provide certification that the pipe meets this specification.

C.

Pipe sizes SHOWN ON THE DRAWINGS shall be nominal diameter.

D.

Pipe length SHOWN ON THE DRAWINGS are horizontal projected lengths.

2.2

HIGH DENSITY POLYETHYLENE (HDPE) PIPE

A.

Pipe

1.

HDPE plastic pipe shall be HDPE-3408 as defined in ASTM D1248, with a minimum cell classification of 345444C in accordance with ASTM D3350. The pipe shall be SDR11, 160 psig minimum pressure rating and comply dimensionally with ASTM D3035.

2. Pipe shall be manufactured in accordance with AWWA C901 for sizes ½” through 3”.

HDPE pipe larger than 2” diameter shall be provided in 40 foot lengths rather than rolls.

4.

The joining method shall be butt fusion method and shall be performed in strict accordance with the pipe manufacturer’s recommendations. Butt fusion equipment used in the joining procedures shall be capable of meeting all conditions recommended by the pipe manufacturer, including but not limited to, temperature requirements, alignment, and fusion pressures. Ribbed steel inserts with stainless steel clamps are not approved for HDPE pipe.

02510 – 2

5.

The HDPE pipe shall be Bluestripe pipe, IPS sizing as manufactured by Chevron Plexco, Reno, NV (630) 350-3700 and supplied by Crow Company, Denver, CO (303) 571-4444, or approved equal.

G.

Fittings

1..

PE fittings shall be made from material meeting the same requirements as the pipe.

2.

Molded fittings shall be manufactured in accordance with either ASTM D2683 for socket fused or ASTM D3261 for butt fused and shall be so marked.

3.

All HDPE fittings shall have the same or higher pressure rating and compositions, 4.

HDPE fittings, including tees, shall be molded or fabricated by the manufacturer of the pipe.

2.3 galvanized steel pipe (GSP)

A.

Pipe

1.

ASTM A53 for pipe 4-inch diameter and smaller. Schedule 40.

2.

Plain ends for joining with standard manufactured couplings.

3.

Threaded ends shall meet requirements of ASME B1.20.1.

B.

Fittings

1. ASTM A53. Schedule 40.

2. For threaded ends use Teflon thread sealing tape/Teflon pipe joint compound.

2.4 Mechanical-Joint, Ductile-Iron Pipe

A.

AWWA C151, with mechanical-joint, bell- and plain-spigot end unless grooved or flanged ends are indicated.

1.

Mechanical-Joint, Ductile-Iron Fittings: AWWA C110, ductile- or gray-iron standard pattern or AWWA C153, ductile-iron compact pattern.

a. Glands, Gaskets, and Bolts: AWWA C111, ductile- or gray-iron glands, rubber gaskets, and steel bolts.

2.5 pe/gsp transitiOn fittings

A.

Male pipe thread to polyethylene fitting, SDR11, aluminum bronze standard MPT Transition Fitting Series 710 IPS Male as manufactured by Poly-Cam, Inc., Blaine, MN (888) 355-5574 and supplied by Crow Company, Denver, CO (303) 571-4444 or approved equal. Aluminum bronze must be used for connection to copper pipe, stainless steel or aluminum bronze can be used for connection to galvanized steel pipe.

02510 – 3

B.

Fitting shall meet the requirements of AWWA C901 and NSF 61.

2.6 curb stop

A.

Ball valve curb stop with Minneapolis pattern.

B.

Female iron pipe inlet by female iron pipe outlet.

C.

Hole for attaching curb box rod or handle in provided in tee head.

D.

Heavy cast bronze body construction conforming to AWWA C800.

E.

Ball Valve Curb stops shall be model B11-xxxx, as manufactured by The Ford Meter

F.

Box Company, Inc., Wabash, Indiana, (219) 563-3171, or approved equal.

2.7 curb box

A.

Minneapolis pattern base, cast iron base, steel pipe telescoping upper section.

B.

Box length when installed, shall permit adjustment between 3 inches above and below final ground surface.

C.

Lids shall be cast iron with brass pentagon plug and have lettering “WATER” permanently imprinted on them.

D.

Box shall be equipped with stationary rod. The rod length shall be within 12 inches of the top of the box.

E. Curb box shall be model CBB as manufactured by The Ford Meter Box Company, Inc., Wabash, Indiana, (219) 563-3171, or approved equal.

F. Provide two (2) valve keys for operating valves.

2.8 gate valve

A.

Gate shall be 100% rubber-encapsulated symmetrical wedge, with polymer wedge guide bearing caps.

B. Shall have a minimum working pressure of 250 psig

C. Valve stem shall be forged bronze, non-rising stem, with triple O-ring seals.

D.

Flanged ends inlet and outlet..

E.

Open left (counter-clockwise), with 2” square wrench nut.

02510 – 4

F.

Model A-2360 series, as manufactured by Mueller Co., Decatur, IL, phone

(800) 423-1323; or approved equal. Available from Mountain States Pipe and

Supply Co., 111 W. Las Vegas, Colorado Springs, Co. 80903.

719-634-5555.

2.9 GATE VALVE BOXES

A.

Cast iron valve box, two-piece, 5-1/4” inside diameter shaft, screw type, and drop lid marked “WATER”.

B. Box length shall be adjustable. Length as required.

C.. Model 668-A as manufactured by Tyler Pipe, P.O. Box 2027, Tyler, TX 75710, phone: (903) 882-5511; or approved equal.

2.10 TOOLS FOR OPERATING gate VALVES, CURB STOPS

A. The Contractor shall supply two curb box pentagon keys, and two gate valve operating wrenches to operate valves and curb stops. Tools shall be as supplied by the valve, curb stop, or box manufacturer.

2.11 mj adapter

A.

Transition fitting between 4-inch diameter flanged end on gate valve to 2-inch diameter HDPE pipe

B. Fusion fitting shall be a PE3408 butt fusion fitting manufactured in compliance with

ASTM D3261 for the IPS pipe side in.

C. Fitting shall be a Flanged End Adapter as manufactured by Central Plastics Company, Shawnee, OK, (800) 654-3872 and supplied by Mountain States Pipe and Supply, Colorado Springs, CO, (719) 634-5555 or approved equal.

2.12 Ductile iron fittings A. Tyler/Union AWWA C110 Ductile Iron Fittings. Available from Tyler Pipe, P.O. Box 2027, Tyler, Texas 75710. 903-882-5511.

2.13 Couplings for cast iron pipe/ductile iron pipe B. Dresser Style 131 Dismantling Joint w/ optional tie rods. Available from Dresser Piping Specialties, 41 Fisher Avenue, Bradford, Pennslvania 16701. 814-363-9200.

C. Dresser Style 38 Coupling. Available from Dresser Piping Specialties, 41 Fisher Avenue, Bradford, Pennslvania 16701. 814-363-9200.

02510 – 5

2.14 Wye Strainer A. Titan Model YS 61-CS cast iron wye strainer, ANSI Class 150, flanged ends.

Available from Titan Flow Control, 290 Corporate Drive, Lumberton, NC. 28358.

910-735-0000. www. Titanfci.com.

2.15

WATER METER

A.

Description: AWWA C702, compound-type, bronze case. Register flow in US

Gallons Designed to register wide flow ranges where varying flow rates are typical.

Meter combines the low flow sensitivity of a disc type meter with the high flow capacity of a turbine-type meter. A hydraulic valve transfers flow smoothly between the disc section and turbine section of the meter, minimizing the loss of accuracy in the crossover range. The turbine measuring element registers high flows and the disc measuring element registers low flows, ensuring accurate measurement at all flows.

Size 4” meter, with a normal operating range of 1 to 1000 US gpm and a low flow accuracy of 0.5 US gpm. Unit to come with 4” ANSI 150 lb flanges. Neptune 4” Tru/Flo Compound Meter # P/R USG MTR 6W EC3CR6G8. Available from HD Supply Waterworks, Denver, Co. 303-292-1112.

B. Meter Strainer. In-line brass strainer. Height to center line to match Neptune

Turbines. ANSI/NSF 61 approved. Designed to prevent meter damage and ensure accurate registration. Neptune # 53107-100 4” BRZ Strainer. Available from HD

Supply Waterworks, Denver, Co. 303-292-1112.

C. Remote Meter Readers: Metre Pro, Visu-Link, MPVL-6. As manufactured by

Metre-Pro Technologies, 101 Park Central, Mineola, Tx 75773. Two remote meter readers are required. One is to be connected to the low flow side of the meter and shall provide a meter reading accuate to 1 US gpm. The other is to be connected to the high flow side of the meter and shall provide a meter reading accuate to 100 US gpm. Available from HD Supply Waterworks, Denver, Co. 303-292-1112.

2.16 Manholes

A. Normal-Traffic (for HS-20 loading) Precast Concrete Manholes: ASTM C 478, precast, reinforced concrete, of depth indicated, with provision for rubber gasketed joints.

1.

Diameter: 72 inches minimum inside diameter, unless otherwise indicated.

2.

Base Section: 8-inch minimum thickness for floor slab and 7-inch minimum thickness for walls.

3.

Riser Sections: 7-inch minimum thickness, and lengths to provide depth indicated.

4.

Top Section: Flat-slab-top type. Thickness as required for Traffic Loading.

5.

Gaskets: ASTM C 443 rubber.

6.

Steps: Fiberglass, individual steps or ladder. Include width that allows worker to place both feet on one step and is designed to prevent lateral slippage off step. Cast or anchor into base, riser, and top section sidewalls with steps at 12- to 16-inch intervals.

02510 – 6

B. Aluminum Manhole Frames and Covers: Castings Inc. Model IMH-24-AL with optional lock bar. Lock bar shall accommodate U.S. Forest Service padlock. Available from Castings Inc. Grand Junction, Colorado 970-243-2032. Manhole frame to be cast into precast concrete top. Locate opening over steps.

C. Drain: Cast 6” diameter hole in the center of manhole floor.

2.17 underground detection and marking tape

D. Section 02221.

PART 3 - EXECUTION

3.1 general

A.

Construct the water system to the lines and grades shown or established in the field.

B.

All water line installation shall be graded to drain.

C.

All pipe, fittings, and appurtenances shall be handled and laid in strict conformance to the manufacturer’s recommendations.

D.

Daylight drains, valves, and other regulating and controlling devices shall be installed in the line where called for on the drawings.

E.

The interior of all pipe, fittings, and other accessories shall be kept as free as

Possible from dirt and foreign matter at all times. Each piece of line as it is laid shall be cleaned of all debris. When the pipeline has become dirty on the inside during shipment or storage, it shall be swabbed out by drawing a damp swab through the line before lying. Care shall be exercised to keep all joining surfaces clean. Any pipe with contaminated or damaged joining surfaces, which cannot be satisfactorily cleaned or repaired, shall be discarded. Under no circumstances shall pipe be laid in water, and no pipe shall be laid when trench conditions or the weather is unsuitable for such work. At all times when work is not in progress, all open ends of the pipe and fittings shall be securely closed to the satisfaction of the CO so that no trench water, rodents, earth, or other substance will enter the pipe or fittings.

F.

Any section of pipe already laid and found to be defective shall be taken up and replaced with new pipe at the Contractor’s expense.

02510 – 7 G. When sewer lines cross over or are within 10 feet horizontally of water lines, or if they are less than 18 inches lower than waterlines, the water and sewer pipes shall be centered at the crossing so that the joints will be an equal distance and as far as possible from the crossing.

H. A minimum of 1’-6” separation shall be maintained between electric and water lines in the same trench.

I. A 5 ft. section of galvanized steel pipe shall be installed on each side of curb valves.

3.2 trenching and bedding

A.

Section 02221.

3.3 cutting and handling of pipe

A.

Cutting of pipe for closure pieces or for other reasons shall be done in a neat manner by methods, which will not damage the pipe. All pipe to be cut at a true 90 degrees.

The pipe and fittings shall be handled in such a manner as to insure delivery and final placement in good, undamaged condition.

Particular care shall be exercised not to injure the pipe surfaces or coatings. Damaged pipe shall not be used in the work.

3.4 laying pipe

A.

No pipe shall be placed in the trench until the CO has approved the trench and bedding.

B.

Each section of the pipe shall rest upon the pipe bed for the full length of its barrel.

C.

Backfill the pipe within 24 hours after installing the pipe in the trench, leaving the joints and one foot of pipe on each side of each joint exposed until testing is complete.

D.

When work is not in progress, securely close open ends of pipe and fittings.

E.

When high density polyethylene pipe is used, it shall be weaved in the trench to provide horizontal slack in the line for expansion and contraction.

F.

High density polyethylene pipe shall be allowed to cool to within 20(F of the shaded trench bottom temperature before backfilling.

3.5 Ductile iron pipe installation

A.

Install ductile-iron pipe according to AWWA C600 and AWWA M41.

02510 – 8

3.6 pipe alignment and grade

B.

Pipelines may be relocated slightly, if necessary, to avoid existing obstacles.

C.

Deflections from a straight line or grade, as required by vertical curves, horizontal curves,or offsets, shall not exceed the manufacturer's recommended maximum joint deflection or curvature for their pipe. If the alignment requires curvature or deflections in excess of these limitations, the Contractor shall provide special bends, standard fittings, or a sufficient number of shorter lengths of pipe to provide angular deflections at the joints within the limit set forth by the manufacturer.

D.

Bends resulting in tension on joints will not be allowed.

3.7

JOINT CONSTRUCTION

A.

Joints shall be made using jointing materials and applied with the proper accessories, in accordance with the manufacturer’s instructions. The joints shall be adjusted and the work performed in a manner so as to obtain the degree of water tightness required. If pipe and fittings are assembled with lubricant, it must be nontoxic. Where connections are made between new work and existing lines, the connections shall be made by using special fittings to suit the actual conditions.

B.

Threaded Joints:

1.

Thread pipes with tapered pipe threads according to ASME B1.20.1, apply tape or joint compound, and apply wrench to fitting and valve ends into which pipes are being threaded.

2.

Exposed threaded pipe joints on galvanized steel pipe shall be painted with mastic following the manufacturer’s application procedures.

3.

Field cut ends shall be squared off by grinding or filing; ends shall be reamed with all chips and flakes removed.

4.

Field cut threads or machined joints shall be made with sharp tools to sharp finished ends.

C.

HDPE Heat-Fusion Joints

1. According to ASTM D 2657 and piping manufacturer's written instructions.

2. The joining method shall be butt fusion method and shall be performed in accordance with the pipe manufacturer's recommendations. Butt fusion equipment used in the joining procedures shall be capable of meeting all conditions recommended by the pipe manufacturer, including but not limited to, temperature requirements, alignment, and fusion pressures.

3. Personnel trained in butt fusion techniques by the manufacturer of the pipe, shall supervise or perform butt fusion operations.

02510 – 9

4. Butt fusion shall be performed between pipe ends or pipe ends and fitting outlets, of like outside diameter and wall thickness, SDR or DR. Butt fusion joining between same diameters but unlike wall thickness shall not be permitted. Transitions between unlike wall thickness shall be made with a transition nipple (a short length of the heavier wall pipe with one end machined to the lighter wall) or by mechanical means.

5.

Branch connections to the main shall be made with polyethylene fittings, and butt fused.

6.

On every day butt fusions are to be made, the first fusion of the day shall be a trial fusion. The trial fusion shall be allowed to cool completely, and then fusion test straps shall be cut out. The test strap shall be 300 mm (12") (min) or 30 times the wall thickness in length with the fusion in the center, and 25 mm (1") (min) or 1.5 times the wall thickness in width. Bend the test strap until the ends of the strap touch. If the fusion fails at the joint, a new trial fusion shall be made, cooled completely and tested. Butt fusion of pipe to be installed shall not commence until a trial fusion has passed the bent strap test.

D.

Dissimilar Materials Piping Joints

1. Polyethylene pipe and fittings may be joined to other materials by means of couplings designed for joining polyethylene pipe to another material. Couplings shall be fully pressure rated and fully thrust restrained such that when installed in accordance with manufacturer’s recommendations, a longitudinal load applied to the coupling will cause the pipe to yield before the coupling disjoints.

2. Use adapters compatible with both piping materials, OD, and system working pressure.

3.8 installation of curb stop and box

A.

Each curb stop shall be housed in a curb box as specified.

B.

Comply with manufacturers written instructions. Install underground curb stops with head pointed up.

3.9

VALVE INSTALLATION

A.

Corporation Valves and Curb Valves (2” Valves) 1.

Comply with manufacturers written instructions.

B.

AWWA Gate Valves (4’,6”,& 8” Valves).

1.

Comply with AWWA C600 and AWWA M44

2.

Install each underground valve with stem pointing up and with valve box.

3.

Install concrete pad around top of box as shown on the drawings.

02510 – 10

3.10 branch connections

A.

Branch connections to the main shall be made with tees.

B.

Horizontal tees for waterline laterals shall not be permitted. The branch side of tees shall be up when drainage is toward the tee, and down when drainage is away from the tee.

C.

Waterline tees shall be the same diameter as the largest pipe connected to the tee.

3.11

SERVICE ENTRANCE PIPING

A.

Extend water-service piping and connect to water-supply source and building water piping systems in locations and pipe sizes indicated.

3.12 backfilling and waterline marking

A.

As specified in Section 02221.

3.13 Final pipe cleaning and flushing

A.

Before testing, clean new water distribution piping systems and parts of existing systems that have been altered, extended, or repaired by high pressure water jet or mechanical means.

B.

If the new waterlines are extensions or modifications of an existing water system, the new system(s) and all of the existing system immediately downstream of the control valve shall be flushed to remove sediment. The control valve referred to here is the valve in the existing system that must be closed to allow construction of new facilities.

C.

During the flushing operation, operate all valves, hydrants, hose bibs and other outlets.

D.

Flush system with clean potable water until dirty water does not appear at points of outlet.

3.14 pressure testing waterlines

A.

The CO shall be present during the testing period.

B.

Test all portions of the water system, including water mains, service lines, fittings, valves, and hydrants. New waterlines that are extensions or modifications of an existing water system shall be tested at the test pressure specified here unless the CO specifies another pressure.

02510 –11

C.

Conduct piping tests before joints are covered and after thrust blocks have hardened sufficiently. Joints shall remain uncovered until testing is completed satisfactorily.

D.

Use only potable water.

E.

Waterlines shall be tested in sections not to exceed 2,000 ft in length or a maximum pressure differential of 30 psi in the test section.

F.

Test Procedure

1.

Slowly fill each valved or plugged test section of pipe with water. The line shall be filled by means of a pump connected to the pipe. Operate all hydrants and taps to bleed entrapped air from the test section. Operate the pump continuously during bleeding operations. The pump shall take suction from a small auxiliary tank for measuring the water pumped into the test section.

2.

Raise the internal pressure of the system by pumping in water. Increase pressure in 50-psig increments and inspect each joint between increments. Raise internal pressure to a test pressure of 1.5 times the working pressure at the point of testing based on the elevation of the lowest point of the line or section under test, or other test pressure as approved by the CO.

3.

The system should be allowed to stabilize for 3 hours at the test pressure before conducting the hydrostatic test. Make up liquid may be added during this time to return to test pressure.

4.

After obtaining the approved test pressure record the water level in the auxiliary tank.

5.

The test phase follows immediately and shall last two hours.

6.

At the end of the test period, the test section is returned to test pressure by adding water. Again measure the water level. Difference of the two measurements shall be considered leakage.

G.

Maximum allowable leakage is 0.11 gallons per 100 feet of pipe of 2” pipe for a 2-hour test and 0.10 gallons per 100 feet of pipe smaller than 2” for a 2-hour test.

H.

If leaks occur, replace defective pipe, fittings, valves, joints, and hydrants as required.