Appendix A IHS Standards.pdf

SECTION 01270

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.01 SUMMARY

A. Work covered by this section includes method of measurement and basis of payment for all divisions included.

B. Payment for the various items of the Bid Schedules, as further specified herein, shall include all compensation to be received by the contractor for furnishing all tools, equipment, materials, labor, supplies, manufactured articles, transportation, and temporary facilities required to complete the work in accordance with contract documents including incidentals.

C. Respective prices and payment shall constitute full compensation for all work completed including incidentals.

D. All items not expressly listed as being provided by others that are necessary for the completion of work shall be furnished and installed by the contractor.

E. No payment shall be made for mobilization and demobilization of equipment.

F. The CONTRACTOR, in case of unit-price items measured for payment, shall be paid for the actual amount of Work accepted and for the actual amount of materials in place, as shown by final measurement. Plan quantity items shall be paid for at the unit price for the quantities shown on the plans and tabulated in the bid form.

G. The CONTRACTOR, in case of lump sum amounts, or by plan quantities, shall be paid for the percentage of the work item completed as determined by the ENGINEER.

H. 10% Payment will be held until work is complete, final inspection has been made and approved by Engineer or Representative, and copy of As-Built has been received. No final payment will be approved until all deficiencies have been satisfied.

I. It is the CONTRACTOR’S responsibility to ensure TERO is paid to the Tribe and no payment line item shall be added where applicable.

1.02 QUANTITIES

A. All quantities stipulated in the bid schedule or other contract documents are approximate and are to be used: (1) as a basis for estimating the probable cost of the work and (2) for the purpose of comparing the bids submitted.

B. The Contractor shall be paid for actual quantities installed based on the quantities measured in the field. The actual amounts of work completed and materials furnished may differ from estimated quantities. The Contractor shall make no claim for damages, anticipated profits, or otherwise, on account of differences between the estimated amounts and the actual amount of work performed and materials furnished.

1.03 SURVEY AND MEASUREMENTS

A. All quantity measurements shall be the responsibility of the Contractor and will be verified by the project engineer or representative.

B. All measurements and subsequent payments will be based on completed and accepted work performed in strict accordance with the drawings, specifications, and other contract documents.

1.04 PAYMENT FOR INCREASED OR DECREASED QUANTITIES

A. When alterations in the quantities of work are ordered and performed, the CONTRACTOR shall accept payment in full at the Contract price for the actual quantities of Work done. No allowance will be made for anticipated profits.

1.05 INCIDENTAL WORK

A. Incidental work items for which separate payment will not be made includes the following items, unless explicitly included as a bid item:

1. Mobilization and Demobilization

2. Project record documents

3. Clean up and restoration of property.

4. Restoration of fences and other structures.

5. Cooperation and coordination with other Contractors and utility companies.

6. Loaming, seeding, grading, liming, fertilizing, mulching, and watering.

7. Repair and replacement of utility lines, culverts, under-drains, drainage ditches, pavement or stone driveways or streets, sidewalks, landscaping and other site specific items damaged by construction activities and corresponding proper disposal of removed materials unless otherwise paid for.

8. Dust and Erosion Control.

9. All excavation including the test pits specifically shown or ordered by the ENGINEER to establish underground utility locations.

10. Contract administration and insurance.

11. Pipe Markings.

12. Any other incidental items not specifically listed on bid schedule to make a complete and working system.

PART 2 - BID SCHEDULE ITEMS

2.01 DESCRIPTION OF PAY ITEMS

A. The following sections describe the measurement of and payment for the Work to be done under the respective items listed in the Bid Form.

B. Each unit or lump sum price stated in the Bid Form shall constitute full compensation, as herein specified, for each item of the Work completed.

1A. 10-INCH DRILLING

A. Measurement: Linear feet of drilling performed measured vertically along centerline of pipe.

B. Basis of Payment: Per linear foot installed at Contract Unit Price for diameter specified.

Includes all labor, materials, tools and equipment necessary to complete this work including all else incidental thereto for which payment is not provided under other items.

1B. 6-INCH DRILLING

A. Measurement: Linear feet of drilling performed measured vertically along centerline of pipe.

B. Basis of Payment: Per linear foot installed at Contract Unit Price for diameter specified.

1C. 6-INCH PVC WELL CASING

A. Measurement: Linear feet of pipe installed, measured vertically along centerline of pipe.

B. Basis of Payment: Per linear foot installed at Contract Unit Price for diameter specified.

backfilling, compaction, dewatering, testing and all other work as shown on the drawings and

1D. WELL DEVELOPMENT

A. Measurement: Per hour of development.

B. Basis for payment: Per hour of well development at the Contract Unit Price performed as needed to provide sand free well. Well Development shall be performed per Section 02525 or as directed by Project Engineer. Compensation shall include all equipment, materials, and all other necessary items for a complete and clear water well.

1E. SANITARY GROUT

A. Measurement: Linear feet installed measured vertically along centerline of pipe.

B. Basis of Payment: Per linear foot installed at the Contract Unit Price for grouting as specified per Section 02525, or as directed and approved by Project Engineer. Compensation shall include payment for all equipment, materials, and all other necessary items for a complete and operational installation.

1F. TEST PUMPING

A. Measurement: Lump sum basis.

B. Basis for payment: Lump sum payment at the Contract Unit Price for well yield and water flow test based on recorded log of completed test and delivered results of test. Testing shall be performed per Section 02525 or as directed by Project Engineer. Compensation shall include all equipment, materials, and all other necessary items for a complete and recorded test.

1G. CHEMICAL SAMPLING AND ANALYSIS

A. Measurement: Per each test conducted.

B. Basis for payment: Lump sum payment at the Contract Unit Price for chemical sampling of well and water system based on delivered and approved results of testing. Testing shall be performed per Section 02525 and Section 02512, or as directed by Project Engineer.

Compensation shall include all equipment, materials, and all other necessary items for complete, delivered and approved test results. No additional compensation shall be made for repeat testing due to positive bacteriological results.

2A. PITLESS ADAPTER AND WELL CAP

A. Measurement: Per each unit installed.

B. Basis for payment: Per each unit installed at the Contract Unit Price for the type of adapter installed as listed in Section 02512 and as shown per included drawings that accompany this package. Compensation shall include payment for installation, connections, repair of leaks, and all other necessary items for a complete and operational installation.

2B. SUBMERSIBLE PUMP

B. Basis for payment: Per each unit installed at the Contract Unit Price for size and type pump listed in Section 02512, on bid schedule, or as selected for system and approved by Project Engineer. Compensation shall include payment for installation of pump, and all other necessary items for a complete and operational installation.

2C. DROP PIPE

A. Measurement: Linear feet of pipe installed measured vertically over the centerline of the pipe.

B. Basis for payment: Per linear foot installed at the Contract Unit Price for the drop pipe as listed in Section 02512, on bid schedule, or as shown per included drawings that accompany this package. Compensation shall include payment for all fittings, couplings, and all other necessary items for a complete and operational installation.

2D. BURIED AND SUBMERSIBLE PUMP CABLE

A. Measurement: Per linear feet of cable installed.

B. Basis for payment: Per linear foot installed at the Contract Unit Price for pump cable as specified per Section 02512, or selected for system installed and approved by Project Engineer, per bid schedule. Compensation shall include all excavation, backfilling, detectable warning tape, and all other necessary items for a complete and operational system.

2E. WATER SERVICE LINE

A. Measurement: Per linear feet of pipe installed measured horizontally over centerline of pipe.

B. Basis for payment: Per linear foot installed at the Contract Unit Price for size, type, and material as specified per Section 02512 and Section 02315, per bid schedule, or per included drawings that accompany this package. Compensation shall include payment for all excavation, trenching, backfilling, compaction, fittings, tees, couplings, detectable warning tape, repair of leaks, and all other necessary items for a complete and operational system.

2F. PRESSURE SYSTEM

B. Basis for payment: Per each unit installed at the Contract Unit Price for size and type listed in

Section 02512, on bid schedule, or as selected for system and approved by Project Engineer.

Compensation shall include payment for installation of pressure tank, controls, gages, fittings, valves, and all other necessary items for a complete and operational installation.

2G. FREEZELESS RISER WITH COPPER TUBING

B. Basis for payment: Per each unit installed at the Contract Unit Price for size and type as selected for system and approved by Project Engineer. Unit shall be installed only on as-needed basis and shall be approved by Project Engineer. Compensation shall include payment for installation of all necessary items for a complete and operational installation.

2H. ROCK REMOVAL

A. Measurement: Per Cubic Yard, based on calculation of volume as described in Section 02316, as verified by Engineer or Representative, and agreed upon by Contractor.

B. Basis for payment: Per cubic yard of rock calculated at Contract Unit Price. Excavating unsuitable bedding material as specified in Technical Specification 02316 will only be permitted where shown on the plans or approved by the Engineer. Compensation shall be made only for that rock excavation necessary to complete the work in accordance with the plans and specifications. If additional unauthorized over-excavation of rock is performed, no payment shall be made for that portion of the excavation. The length, width, and depth of rock excavation shall be determined by field measurements.

2I. FINAL GRADING, TOPSOIL, SEED, AND RESTORATION

A. Measurement: Lump sum basis.

B. Basis for payment: Lump sum payment at the Contract Unit Price for restoration of all disturbed areas. All disturbed open areas to be topsoiled, seeded and mulched as specified in Section 02920. All disturbed driveway or sidewalk areas to be restored to original conditions.

Includes all labor, materials, tools and equipment necessary to complete this work including any topsoil, seed, mulch, raking, final grading, plantings, watering, gravel and binder, and all else incidental thereto for which payment is not provided under other items.

END OF SECTION

SECTION 02315

EXCAVATION, TRENCHING AND BACKFILL

PART 1 - GENERAL

1.01 SUMMARY

A. This section includes excavation, trenching and backfill necessary for the construction of the facilities as indicated on the plans including, but not limited to: water mains and service lines, sewer mains and service lines, concrete manholes, septic tanks, and other structures.

1.02 RELATED WORK (as applicable)

A. Section 02316 – Rock Excavation

1.03 REFERENCES

A. ASTM D2487 – Classification of Soils for Engineering Purposes [Unified Soil Classification System].

B. ASTM F1668 – Standard Guide for Construction Procedures for Buried Plastic Pipe

C. ASTM D2774 – Standard Practice for Underground Installation of Thermoplastic Pressure Pipe

D. OSHA Regulations

1.05 DEFINITIONS

A. Bedding is defined as the layer of soil placed under all pipes and structures to provide support. Bedding is typically 6-inches in depth.

B. Haunching, also known as embedment, is defined as the area surrounding the pipe on both sides and under any pipe areas where pipe bells do not allow for direct support of the pipe on the bedding. Haunching shall extend a minimum of 6” but no more than 12” on either side of the pipe.

C. Initial Backfill is the layer of backfill placed directly over the pipe and extending 12” above the top of pipe.

1.06 SUBMITTALS

A. Detectable Warning Tape B. Bedding Materials C. Fill Materials (if needed)

PART 2 – PRODUCTS

2.01 BEDDING, HAUNCHING AND INITIAL BACKFILL MATERIAL

A. Manufactured aggregates ¼” to 1 ½” in size, poorly graded or poorly graded with sand, clean.

B. Course sand and gravels with maximum particle size of 1 ½”, clean.

2.02 Detectable Warning Tape

A. Tape shall be reinforced, 3” wide, with 0.2 mm minimum thickness and 0.008 mm metal foil core.

B. Tape shall be resistant to alkalis, acids, and other chemicals that are likely to be encountered in soils.

C. Tape shall be Terra Tape Sentry Line Detectable or approved equal.

PART 3 - EXECUTION

3.01 GENERAL

A. Trenching and excavation work shall be done in accordance with proper emphasis on safety as determined by the CONTRACTOR, ENGINEER, and/or REPRESENTATIVE, to conform to local, state, federal and OSHA regulations.

B. Obtain all permits from appropriate agency prior to start of construction.

C. Repair damage resulting from settlement, slides, cave-ins, water pressure, and other causes.

D. Provide adequate signs, barricades, fences and/or amber lights and take all necessary precautions to protect the work and the safety of the public in all construction areas.

1. Any excavation opening shall be properly fenced or barricaded when left open overnight.

2. When work is near or within roadway - placement of construction signs and barricades shall conform to the “Manual on Uniform Traffic Control Devices.”

3. Protect barricades and obstructions at night by amber signal lights that burn from sunset to sunrise. Barricades shall also be of substantial construction, painted white or with reflective paint to increase their visibility at night.

4. Perform work without obstruction to traffic or inconvenience to the general public and the residents in the vicinity of the work.

3.02 EXCAVATION

A. Remove trees and stumps from excavation and site.

B. Remove and stockpile existing topsoil.

C. Install facilities as shown on the plans unless otherwise approved by PROJECT ENGINEER.

D. Maintain surface drainage away from trenching or excavation.

E. Remove unsuitable foundation materials from excavation as shown on the plans or as authorized by the PROJECT ENGINEER.

F. Maintain a minimum 6” clearance between outer surface of structure being installed and wall of excavation.

G. Rock encountered shall be classified, excavated and measured in accordance with Section

02316 – Rock Excavation.

3.03 TRENCHING

A. Bottom width: No less than 12 inches or more than 24 inches wider than the outside diameter of the pipe.

B. Depth: Provide minimum cover as specified or as shown on plans.

3.04 BEDDING

A. All service lines shall be installed on a layer of bedding material.

B. If existing soil cannot provide uniform, stable bearing support, over-excavate 6 inches below bottom of pipe or structure and provide bedding material.

C. The bedding shall be placed such that the when the pipe is installed, proper elevation and slope requirements are met. Once the bedding is properly placed, the pipe shall be placed directly on top of the bedding material.

D. The bedding material shall meet the criteria of the unified soils classification system for well graded to poorly graded sands passing a ¾” screen (Group SW to Group SP) or will be manufactured aggregates, ¼” to 1 ½” clean aggregate.

E. Sand bedding shall be compacted prior to pipe installation.

F. Bedding material shall be approved by the PROJECT ENGINEER or designated representative prior to placement.

3.05 HAUNCHING AND INITIAL BACKFILL

A. General:

1. Provide complete and uniform bearing and support for the pipe, including allowance for bell holes, or structure.

2. Work material under and around the pipe to ensure full pipe support.

3. Prevent movement of the pipe during placement of material.

4. Avoid contact between the pipe and mechanical compaction equipment.

5. Initial backfill shall extend 12” above the top of pipe and shall be hand tamped.

B. The bedding material shall meet the criteria of the unified soils classification system for well graded to poorly graded sands passing a ¾” screen (Group SW to Group SP) or will be manufactured aggregates, ¼” to 1 ½” clean aggregate.

C. Sand bedding shall be compacted prior to pipe installation.

D. Bedding material shall be approved by the PROJECT ENGINEER or designated representative prior to placement.

3.06 FINAL BACKFILL

A. Backfill remainder of excavation with native material, free from large clods, large stones, organic material or frost chunks unless otherwise directed.

B. Compact in 12-inch lifts to a density not less than the density of the surrounding undisturbed soil.

1. Compact with a mechanical tamper.

2. Provide 4 feet minimum cover over the top of the pipe before utilization of hydrohammer compaction equipment.

3. Provide 3 feet minimum of backfill over the pipe before wheel loading the trench.

C. Backfill and compact around tanks, manholes, boxes, and other appurtenances in 12-inch lifts unless otherwise directed.

1. Compact with a mechanical tamper.

F. Repair any trenches improperly backfilled or where settlement occurs, then refill and compact.

G. Restore surface to the required grade and compaction.

H. Remove all surplus backfill materials to a location approved by the ENGINEER or

REPRESENTATIVE.

3.07 REMOVAL OF NUISANCE WATER

A. Remove nuisance water entering the trenches. Nuisance water that can be removed through the use of sump or trash pumps is not considered dewatering.

B. Keep trenches free from water until the facilities are in place, sealed against the entrance of water, and backfill has been placed and compacted above the water level.

3.08 LOCATE EXISTING UTILITIES

A. Field locate all existing underground utilities.

1. Utilize state “dig-safe” or “one-call” hotlines.

2. Contact all other utility owners not covered by the state “dig safe” hotlines.

3. Mark locations of all previously unmarked existing utilities where encountered.

3.09 UTILITY CONFLICTS

A. Protect existing utilities from damage during excavation and backfilling operations.

B. Provide temporary support for existing water, gas, telephone, power, or other utility services that cross the trench until backfilling of trench is complete

1. Compact backfill to 95% of Standard Proctor Density under disturbed utilities.

2. Repair or replace any damaged existing utilities, at no additional cost to the project.

C. Water and sewer main crossing and parallel installation

1. Maintain a 10 foot horizontal separation (O.D. to O.D.) for parallel mains.

2. Upon approval by the ENGINEER, water and sewer mains may be installed closer than 10 feet, provided all of the following conditions;

a. Vertical separation is 18 inches (O.D. to O.D.)

b. Water main is above the sewer main.

c. Separate trenches are maintained.

3. Maintain a minimum 18-inch vertical separation (O.D. to O.D.) for crossing mains.

a. Lay pipe with joints equidistant from the point of crossing.

4. If it is impossible to meet any of the above separation distances and deviations, one of the following methods shall be adhered to.

a. Sewer main shall be constructed to water main pressure pipe standards, and successfully pass a 150-psi pressure test prior to backfilling.

b. Either the water main or the sewer main may be encased in a watertight carrier pipe that extends 10 feet on both sides of the crossing. The carrier pipe shall be of materials approved by the regulatory agency for use in water main construction.

D. Water and sewer service crossing and parallel installation.

1. Maintain a 10-foot horizontal separation from water and sewer services for parallel lines.

2. Maintain an 18-inch vertical separation for crossing water and sewer services.

3. Water service line splices or joints will not be permitted within 10 feet of a sewer line crossing.

3.10 DETECTABLE WARNING TAPE

A. Locator Tape of appropriate marking for utility shall be installed over all utilities.

B. Tape shall be placed 12” to 18” below grade and directly above pipeline or cable with printed side up.

3.11 MOVING FENCES AND MINOR STRUCTURES

A. Remove and reset culverts, drainage pipes or other minor structures that fall within the alignment of the new construction, to their original location and grade.

D. Visit the project site and determine actual conditions with regard to the existence of old car bodies, abandoned houses, fences, driveways, trees, stumps, brush, sidewalks, approaches, and other miscellaneous obstacles to construction.

1. Unless specifically referenced in a bid item, no separate payment will be made for the removal or replacement of these items.

3.12 RECORDS

A. Provide as-builts for all installations, relocations, crossings as per closeout procedures or as directed by the ENGINEER.

SECTION 02316

ROCK EXCAVATION

1.06 SUMMARY

A. This section includes rock excavation necessary for the construction of the facilities as indicated on the plans.

1.07 RELATED WORK

A. Section 02315 – Excavation, Trenching and Backfill

1.03 SUBMITTALS (Not Applicable)

1.04 DEFINITION

A. Solid Rock

1. Large masses of rock which, in the opinion of the Project Engineer, cannot be excavated without drilling, blasting, ripping equipment or other specialized equipment.

B. Loose Rock

1. Boulders and other detached stones each having a volume of 1-cubic yard or more.

1.05 RESPONSIBILITIES

A. Protect adjacent utilities lines, property, and structures.

B. Repair damage caused by rock excavation operations.

C. Remove excavated rock from site unless otherwise directed by the Project Engineer or Representative.

PART 2 – PRODUCTS (Not Applicable)

PART 3 – EXECUTION

3.13 ROCK MEASUREMENT

A. For Loose Rock, determine rock profile by one of four methods:

1. Excavating and exposing the rock, prior to blasting.

2. Drilling prior to excavating and blasting.

3. Blasting and excavating, then measuring rock. Note: 20% reduction in rock volume shall be factored in to account for expansion.

4. Water displacement: A large container of known inside dimensions shall be filled with water to the rim. The boulder or rock shall be placed in the container and then removed. The displaced water shall be determined by measuring the drop in water level after removing the rock. Water accidentally removed by the excavator bucket will not count toward rock volume.

B. Measure solid rock to the nearest 0.1 foot from the surface and no less than every ten feet along the rock profile.

1. Trenches

a. Rock volume measurements shall be based on the surface profile, to a point 6 inches below the invert of the pipe, and up to 12 inches from each side of the pipe or appurtenance with a maximum 30-inch trench width allowed for measurement purposes.

2. Structures

a. Rock volume measurements shall be based on a point 6 inches below the structure and 24-inches from the edges, horizontally.

C. Measure quantity of loose rock in cubic yards.

3.14 EXCAVATION

A. Excavate a minimum 6 inches deeper than the pipe invert.

B. Refill trench to the required elevation with material in accordance with Section 02315 – Excavation, Trenching and Backfill.

SECTION 02512

INDIVIDUAL HOUSEHOLD WATER SYSTEMS

1.08 SUMMARY

A. This section includes the installation of submersible pumps, drop pipe, electrical cable and controls, pressure tanks, service lines and pitless units from the well to the household.

1.09 RELATED WORK

A. IHS Specification T-02315 – Excavation, Trenching and Backfilling

B. IHS Specification T-02316 – Rock Excavation

C. IHS Specification T-02525 – Individual Well Drilling

1.10 REFERENCES

A. National Electric Code (NEC)

B. NY State Department of Health, Part 5, Subpart 5-1: Standards for Water Wells

C. 2015 International Plumbing Code (3rd printing as adopted by New York State)

1.11 SUBMITTALS

A. Submersible Well Pump B. Lightning Arrester (if not built into the motor) C. Submersible Pump Cable D. Drop Pipe and Fittings (incl. Flow Control Valve if required) E. Water Service Line and Fittings F. Copper Tubing G. Pressure Tank and Switches H. Buried Cable I. Freezeless Riser J. Pitless Adaptor and Cap

PART 2 - PRODUCTS

2.01 SUBMERSIBLE PUMPS

A. Submersible pumps shall be sealed and constructed of all corrosion resistant materials including all exposed parts of both the pump and motor.

1. Impellers and diffusers shall be constructed of bronze, stainless steel or plastic.

2. Pump shaft shall be hexagonal or splined stainless steel and connected to the motor shaft with a splined coupling.

3. Pump casing shall be bronze, brass or stainless steel.

4. Motor adapter and pump discharge head shall be bronze, brass or other corrosion resistant material.

5. Motor casing and end caps shall be stainless steel, brass, bronze or other corrosion resistant material.

B. Pump Requirements:

1. Pump Design for 3 Wire Installation unless otherwise specified.

2. High Torque Motor

3. 220 Volt Operation, if available or otherwise directed by Project Engineer.

4. Overload Protection

5. Solid State Starting Switch

6. NEMA Standard for Universal Motor Replacement

7. 1/3 horsepower pumps shall have a pumping capacity of 8 gpm against a total head of

150 feet.

8. 1/2 horsepower pumps shall have a pumping capacity of 8 gpm against a total head of

200 feet.

9. 3/4 horsepower pumps shall have a pumping capacity of 8 gpm against a total head of

280 feet.

10. A check valve shall be installed in the pump.

C. The pump to be installed will be sized appropriately for the site and well information. Project

Engineer must review submittal on well pump after receiving well log.

D. Lightning protection shall be built into the pump motor or a submittal for the arrestor and installation method shall be provided.

2.02 SUBMERSIBLE PUMP CABLE

A. Use RHW insulated and jacketed, U.L. approved, rated at 600 volts, manufactured in accordance with the NEC and be a minimum size of No. 12.

1. Submersible pump cable shall be Essex CPE, MilSpec Milpreme double insulated or approved equal.

2. TW insulated and jacketed pump cable meeting the above requirements such as Centerline HI-LO Supreme or approved equal may be substituted for the RHW standard.

B. Allowable voltage drop through the cable, from the electrical service to the pump motor, shall be in accordance with pump manufacturer’s recommendation.

C. Waterproof splice shall be in accordance with pump manufacturer’s recommendation.

2.03 DROP PIPE AND FITTINGS

A. Steel Drop Pipe

1. Conform to ASTM A 53

2. Pipe shall be Schedule 40 galvanized steel with a nominal size of 1-inch.

3. Galvanized steel couplings shall be used to connect pipe sections.

B. PVC Drop Pipe

1. Conform to ASTM D 1785

2. Pipe shall be threaded Schedule 80 with a nominal size of 1-inch.

3. Couplings shall be machined from extruded, not molded, PVC.

C. PE Drop Pipe

1. Conform to AWWA C901

2. Pipe shall be ultra-high molecular weight, IDR 7, 1-inch IPS with a minimum pressure rating of 160 psi.

3. Torque arrestor shall be equal to Merril No. TA-48.

4. Cable protector centering device shall be equal to Pentair TC 2171

D. Check valves shall be equal to Clayton Mark No. 6300.

E. Flow control valves shall be equal to an Eaton-Dole Valve, G series flow regulator.

2.04 WATER SERVICE LINE

A. Conform to AWWA C901.

B. Ultra-high molecular weight, PE 3406 or 3408, IDR of 7 or 9 with a minimum pressure rating of 160 psi.

2.05 COPPER TUBING

A. 3/4-inch seamless, thick-wall type L copper tubing with a wall thickness of 0.045 inches for freezeless risers.

2.06 PRESSURE TANK

A. Supply pressure tanks precharged in accordance with the manufacturer’s recommendations, for a minimum operating range of 30 to 50 psi, having a sealed container or diaphragm that prevents contact of water with air.

B. Tanks shall be lined with a noncorrosive material that does not impart taste or odor to the water and provide a minimum of 8.9 useable gallons of draw down.

C. Tanks shall be equal to Well-X-Trol Model WX-203 or Champion Model CM-8003.

D. Pressure switches shall be equal to Square D Model FSG2.

2.07 BURIED CABLE

A. Underground wiring shall be type UF for direct burial with a minimum size of No. 12.

B. Size underground wiring to limit the total voltage drop from the electrical service to the pump motor in accordance with manufacturer’s recommendations.

2.08 FREEZELESS RISERS

A. No galvanized fittings are allowed when connecting the freezeless riser.

B. Risers must be provided with a swing joint and be equal to Thermaline model 15.

C. Freezeless riser manufacturer shall supply the thermostatically controlled heat tape unless riser shut off valve is installed above floor grade.

D. Use compression type or an adapter with union connections for copper pipe.

1. Acceptable manufacturers are Hays Manufacturing Company, A.Y. McDonald, Mueller

Company, Ford Meter or approved equal.

2.08 PITLESS ADAPTER AND CAP

A. Pitless Adapter

1. Pitless adapters shall be used in all connections to the well casing made below ground.

2. Pitless Adapters shall meet requirements of NYS DOH Drinking Water Regulations, Part

5, Subpart 5-1 Standards for Water Wells

3. Pitless Adapter shall be Maass Midwest-Dicken S, LDS & JRS pitless adapter or approved equal.

B. Cap

4. Vented, weather and vermin proof cap with gasket. All nuts and bolts shall be made of non-corrodible material.

5. Screened downward facing vent not less than ¼-inch in diameter.

a. Screen shall be made of non-corrodible material.

3.15 PUMP AND DROP PIPE

A. Install drop pipe and submersible pump as directed by the Project Engineer.

1. If a change in pump size is required, the Contractor and contracting officer shall negotiate a new pump price.

B. Use tape or approved joint compound on all threaded connections.

C. The depth limitation for using Schedule 80 PVC is 400 feet.

D. PE Pipe

1. Install PE pipe in one single length (no couplings) from the pitless unit to the submersible pump.

2. Install an approved torque arrestor at the pump.

3. Install cable protector devices every 50 feet above the pump to center the PE pipe in the casing.

4. The depth limitation for PE pipe is 300 feet and the maximum pump size is 1 horsepower.

E. If required by the Project Engineer, install flow control valve between the pitless spool and the drop pipe unless specified otherwise.

3.16 SUBMERSIBLE CABLE

A. Securely attach submersible pump cable to the drop pipe every 10 feet, using tape or other method approved by the Project Engineer.

B. Provide an extra 12 inches of cable under the well cap.

C. The only splice allowed in the pump cable will be at the motor and the splices shall be made using taped, mechanical or resin splices.

D. Test cables for leakage or shorts using an ohmmeter or megger.

3.17 PITLESS ADAPTER

A. Steel Cased Wells

1. Install onto casing 5 feet below grade.

2. Seal with neoprene o-ring.

3. Conform to state and local codes.

B. PVC Cased Wells

1. Install onto casing 5 feet below grade.

2. Connection shall be watertight.

3.18 WELL CAP

A. Install well cap tightly to top of well casing to provide sanitary seal.

B. Seal any unscreened openings until conduits are connected.

3.19 TRENCH EXCAVATION AND BACKFILLING

A. All trench excavation and backfilling shall comply with IHS specification T-02315

B. Rock excavation shall comply with IHS specification T-02316

3.20 WATER SERVICE LINE

A. Install in accordance with the 2015 International Plumbing Code (3rd printing as adopted by New York State) and the attached drawings.

B. Bury water service lines 5 feet deep unless otherwise noted.

C. Connect water service line to the pitless adapter with a brass or bronze swing joint connection as shown on the plans.

D. If the water from the house has been installed, connect the water line to the stubbed out line from the house, otherwise extend and connect into the plumbing for the hydropneumatic tank.

E. Make connections with brass insert adapters and two stainless steel hose clamps or non-flare brass compression fittings.

F. Where designated by the Project Engineer, terminate the water service line 5 feet from the house and cap.

1. Mark the end with a 2 by 4-inch stake painted blue extending 1-foot above grade and 5 feet below grade.

3.21 UNDERGROUND UTILITY CONFLICTS

A. Refer to IHS Specification T-02315

3.22 PRESSURE TANK AND FITTINGS

A. Place tanks inside home as located by the Project Engineer and the homeowner.

B. Install tanks as shown on the attached drawings, including pressure gauge, pressure switch, brass tank cross, hose bibb, gate valve and all miscellaneous fittings and adapters.

C. Use leveling blocks or hangers when installing tanks.

D. Connect tank to existing plumbing if available.

E. Install tank so that it can be connected to house plumbing.

F. For tanks with a steel inlet fitting use a dielectric union, installed between the inlet pipe and the brass cross.

G. Install tank and cross such that the tank can be easily removed.

H. Install pressure relief valve if required.

3.23 BURIED CABLE

A. Install underground cable in accordance with local utility regulations, the NEC, applicable state and local codes and the attached drawings.

B. No underground splices are allowed.

C. Control power to each unit with a fused disconnect switch or manually reset circuit breakers placed in the home, where possible, or otherwise on a power pole near the well.

D. Provide disconnecting means located in site of controller location.

E. Connect underground wiring to the pump cable under the well cap. Provide an extra 12 inches of slack cable under the well cap.

F. Securely attach the ground wire to the casing with a threaded metal screw tapped into or drilled through the casing.

G. Ground the submersible pump and well casing to the panel in accordance with the NEC.

H. Install wiring in a rigid galvanized steel or Schedule 80 PVC conduit at the electrical entrance and the wellhead to 2 feet below ground.

1. Conduit end shall be smooth and free of sharp edges

2. Snuggly fit the conduit end into the well cap. Maintain sanitary seal.

3. Bushings are required as shown on the detailed drawing.

I. Provide sufficient slack in the wire to prevent separation of the cable.

J. Underground wire may be placed in the same trench and located at the same depth as the water service line.

K. For trailers and houses without basements, install underground wire in rigid conduit when placed below the structure.

3.24 FREEZELESS RISER

A. Install freezeless risers below each mobile home and other homes where required at the locations established by the Project Engineer.

B. Install directly below the point of connection to the house plumbing, whenever possible.

C. Set risers vertical except for mobile homes.

1. Set mobile home risers at an angle that will allow for the removal of the interior components of the riser without moving the mobile home or excavating the freezeless riser.

D. For homes requiring freezeless risers install copper tubing from the riser to the house plumbing.

E. At 90 degree bends, install elbows or make long radius bends.

F. Copper tubing shall be kink-free.

G. All solder joints shall be made with lead-free solder.

H. Risers with shut off valves installed above floor grade shall be equipped with non-thermostatically controlled heat tape.

3.25 BACTERIOLOGICAL SAMPLE

A. Provide bacteriological sample for water system after system has been installed, disinfected and flushed.

B. No payment will be made for water system until the bacteriological sample has been received.

3.12 AS-BUILTS

A. Provide as-built information on each system. Use IHS forms (if supplied) by the Project Engineer.

SECTION 02525

INDIVIDUAL WELL DRILLING

1.12 SUMMARY

A. General and Performance Requirements

B. Drilling and Well Construction

C. Test Pumping

D. Well disinfection and water analysis

1.13 RELATED WORK (as applicable)

A. Section 02315 – Excavation, Trenching and Backfilling

B. Section 02512 – Individual Household Water Systems

C. Section 02920 – Topsoiling, Seeding, Fertilizing, and Mulching

1.14 REFERENCES

A. AWWA A100 – Standards for Water Wells.

B. AWWA B301 – Standards for Liquid Chlorine.

C. ASTM A53 – Standard Specification for Pipe, Steel, Black and Hot Dipped, Zinc Coated Welded and Seamless.

D. ASTM F480 – Thermoplastic Well Casing Pipe and Couplings Made in SDR, Schedule 40 and 80

E. ASTM A276 – Stainless steel well screen

F. NY State Department of Health, Part 5, Subpart 5-1: Public Water Systems

1.15 SUBMITTALS

A. Drill Rig Operator Experience, License Number, and NYS Registration Number B. Type of Drilling Equipment C. Drilling Mud and Plan for use D. Well Casing and Cap E. Method of Development F. Well Grout and Installation Method

G. Method of Disinfection H. Certified Water Testing Lab

1.16 STATE WELL CODES

A. Prior to drilling, Well Driller must notify NYS DEC and upon completion the Well Driller shall complete a well completion report per NYS Law. Completion report must be filed with NYS

DEC.

B. Individual Water Supply Wells shall be constructed in compliance with the New York State Residential Code, complying with NYS DOH Drinking Water Regulations, Part 5, Appendix 5-B "Standards for Water Wells".

C. Testing for water wells shall be in compliance with NYS DOH Drinking Water Regulations, Part 5, Appendix 5-C “Acceptable Methods for the Analysis of Contaminants in Drinking Water”.

1.17 ACCEPTANCE

A. Minimum final yield being sought is 5 gallons per minute.

B. Water shall be clear and free of sand.

C. Work covered by this section will not be accepted until the well completion report has been filed with the NYS DEC, and copies provided to IHS and the homeowner, and testing has been completed and reported to IHS and the Homeowner.

2.09 WELL CASING

A. Well casing must meet State Requirements as set forth in the NYS DOH Drinking Water

Regulations, Part 5, Appendix 5-B "Standards for Water Wells"

2.10 GROUT

B. Grouting must meet State Requirements as set forth in the NYS DOH Drinking Water Regulations, Part 5, Appendix 5-B "Standards for Water Wells"

2.11 DRILLING FLUID (MUD ROTARY METHOD)

A. Conform to standard accepted well drilling practice for water wells.

3.26 GENERAL

A. Well construction shall comply with NYS Department of Health Standards for Water Well Construction.

B. Drill well in the location a minimum of 100 feet from the existing or proposed drainfield, 100 feet from any adjacent wells, or in the location designated by the Project Engineer or Tribal Project Manager, or as shown on site plan.

C. Wells shall be sufficiently straight and vertical to allow for normal installation and operation of pump.

D. Well shall be tested and results of analysis shall be received prior to installation of water system and connection to home.

3.27 DRILLING

A. General

1. State license requirements shall be met.

2. Locate all existing underground utilities.

3. Prevent contaminated water from entering the well.

4. Drill and case wells at the size specified in the bid schedule.

5. Minimum final yield of 5 gallons per minute for the home is being sought, however, well should always be developed to its maximum yield.

a. If satisfactory yield is obtained at a lesser depth, terminate drilling and develop at that depth.

6. Drill wells no deeper than the depth specified, unless approved by the Project Engineer.

a. If well does not produce satisfactory yield, contact Project Engineer.

7. Drill in accordance with local or state codes

3.28 CASING

A. Install the materials and sizes stated on the bid schedule or as directed by Project Engineer

B. Install casing in wells to a depth appropriate for the formation type and minimum yield specified.

C. Connect casing lengths with either screwed couplings or approved welds.

1. Keep surfaces to be welded free from local scale, rust, grease, paint and other foreign materials.

2. Ends to be welded shall be factory cut and beveled.

3. Welding will not be allowed when the base metal temperature is below 0 degrees

Fahrenheit.

4. Heat areas within 3 inches of the weld when the base metal temperature is between 0 and 32 degrees Fahrenheit.

5. Casing sections having twists, bends, offsets, and openings will not be accepted.

6. Make all joints watertight.

D. Driven steel casing terminating in bedrock shall be fitted with drive shoe that is firmly seated in bedrock.

E. Do not drive plastic well casing.

F. PVC casing depths are limited to 300 feet and dependent on the formations encountered.

1. Prevent PVC damage or scratching by properly handling PVC casing.

2. Solvent weld all PVC casing joints.

3. Follow manufacturer’s recommendation for solvent welding joints.

4. No leaks will be permitted at any joints.

G. If the top of the casing is torch cut, grind all rough surfaces smooth.

H. Plumbness and Alignment

1. Maximum deviation from vertical in any 100 feet of depth is 2 1/2 inches.

2. Conduct a straightness and alignment test on all questionable wells after casing.

a. The test will consist of running piece of pipe 40 feet long whose diameter is 1/4 to 1/2 inch smaller than the inside diameter of the inside of the of the casing to the bottom of the well.

b. No payment will be made for testing procedure or materials.

3. If the test pipe binds, is bent as a result of testing procedure or does not pass through the well casing freely the well will not be accepted and no payment will be made.

3.29 WELL DEVELOPMENT

A. Develop wells in accordance with State Regulations and by State approved methods (NYS DOH Drinking Water Regulations, Part 5-1, Appendix 5B)

B. Duration of development: Until well water is clear of all sand, cuttings, mud, or other contaminants. Maximum development time shall be three hours unless otherwise approved by the Project Engineer.

3.30 GROUTING

B. Conform to local or state codes.

3.31 TESTING FOR YIELD AND DRAWDOWN

A. Conform to local or state codes.

B. Do not use the actual pumps to be installed in the well for the test pump operation.

C. Water level and flow rate observations shall be made and recorded per State standards

D. Standard Yield Test shall include:

1. Four-hour period of stabilized drawdown while pumping at constant rate.

2. Stabilized drawdown shall not fluctuate more than 0.5 feet for each 100’ of water in well.

E. Record recovery measurements immediately upon completion of test pump until well is recovered to static water level, unless otherwise directed by the Project Engineer.

3. If recovery exceeds 24 hours, notify the project engineer.

F. Remove all temporary-pumping facilities at the conclusion of test pumping.

G. If well yield is less than 5 gpm or recover exceeds 24 hours:

1. Contact Project Engineer immediately.

2. Project Engineer will determine if the well is acceptable. If well is not acceptable, go to

Section 3.11 of this specification.

H. Submit results of pump test to Project Engineer.

3.32 CHEMICAL ANALYSIS

A. Samples shall be drawn and tested per State regulations.

B. Constituents to test are listed on plans.

C. Submit chemical analysis results to Project Engineer immediately upon receipt of results.

3.33 DISINFECTION

A. Upon completion of test pumping and construction, thoroughly clean the well of all foreign material (i.e. cement, oil, grease, joint dope, scum, etc.)

B. Disinfect well, pumping equipment and building plumbing with a chlorine solution

1. Prepare solution prior to injection into well.

2. Mix volume and strength such that a minimum concentration of 50 ppm of free residual chlorine is obtained in all parts of the well for a minimum of 24 hours after injection.

3. Flush casing above static water level with solution.

4. Discharge chlorinated water away from well and not into home plumbing.

3.34 BACTERIOLOGICAL ANALYSIS

A. Take bacteriological samples after disinfection and flushing of well.

B. Submit samples to State Department of Health or Indian Health Service approved lab.

1. Provide copy of results within 1 day of receipt of the report.

2. If a sample tests positive, notify Project Engineer immediately and repeat chlorination of the well until a sample tests negative.

3. Conform to sampling and preservation requirements of laboratory.

4. Parameters to be analyzed:

1. TOTAL COLIFORMS

2. E-COLI (if positive for coliforms)

3.35 INSTALL WATER SYSTEM

A. Install pump, drop pipe, submersible cable, pitless adapter, service line, and other appurtenances per Section 02512.

B. Ensure all materials installed in well are new, clean and free of all grease, oils and contaminants prior to installation in well.

3.36 CAPPING

A. Conform to requirements of Section 02512 for well cap.

B. Temporary caps may be used, as approved by the Project Engineer, if individual water system is being completed at a later date. Caps shall prevent contamination of well by surface water.

3.37 WELL LOG

A. Keep daily log of each hole drilled.

B. File an official construction report, using state approved form, with the designated state agency within 30 days from when well is completed.

1. Submit a copy to the Project Engineer and Homeowner.

3.38 UNACCEPTED DRILLED WELLS

A. Drilled wells may be rejected due to insufficient capacity, unsatisfactory chemical or bacteriological quality, poor alignment, loss of tools or any other cause.

B. Obtain Project Engineer’s approval prior to abandoning wells.

C. Well abandonment shall be in accordance State standards.

SECTION 02920

TOPSOILING, SEEDING, AND MULCHING

1.18 SUMMARY

A. This section includes topsoiling, seeding, and mulching areas disturbed by construction activities.

1.19 RELATED WORK (as applicable)

A. Section 02315 – Excavation, Trenching & Backfilling B. Section 02525 – Well Drilling

1.03 REFERENCES

A. NY Standards and Specifications for Erosion and Sediment Control

B. Cornell University Cooperative Extension Turf Seeding

1.04 SUBMITTALS

A. Topsoil

B. Seed Mixture and Application Rate Data

C. Mulch and Seed Stabilizer Material

2.12 TOPSOIL

A. Material shall be screened loose friable loam, sandy loam, fine sandy loam, free of subsoil, refuse, stumps, roots, rocks, cobbles, stones, brush, weeds, litter and/or other materials larger than ½ inch in any dimension.

B. Neither excessively acid nor excessively alkaline.

C. Organic matter shall constitute not less than 5% nor more than 20% of loam.

D. Use of stockpiled topsoil may be acceptable but must be free of refuse, stumps, roots, rocks, cobbles, stones, brush, litter and/or other materials larger than ½ inch in any dimension with approval of Engineer or Representative.

2.13 SEED

1. Seed mixture shall be selected for lawns based on site conditions. Local mixtures readily available are acceptable.

2. Seed mixtures shall specify type and purity contents, contain less than 3% inert matter, less than 0.5% weeds, and no noxious weeds found.

2.14 MULCH AND SEED STABILIZERS

A. Mulch shall meet requirements of NYS Standards and Specifications for Erosion and Sediment Control

B. Select mulch material and application rate based on site conditions and/or engineer recommendations.

2.15 SLOPE STABILIZATION

A. All grade shall be at 4H:1V or less to prevent need of additional slope stabilization and ensure mow-able grade unless otherwise directed or approved by project engineer.

B. If unable to achieve slope of 4H:1V or less, turf reinforcement mat, erosion control blanket, or sod shall be used for slope stabilization.

1. Install turf reinforcement mat or erosion control blanket per manufacturer’s instructions.

3.39 TOPSOIL

A. Grade surface and prepare for placement of topsoil by removing all sticks, debris, litter, wire, cable, cobbles, and stones any larger than 1/2 inch.

B. Spread stockpiled topsoil and/or loam over all disturbed areas, excluding those where another type of finished surface is being provided to a depth of no less than 4 inches.

C. Fine grade topsoil/loam surface to finished grade as shown on plans or directed by Engineer.

3.40 SEEDING

A. Sow seed within 24 hours of application and preparation of seedbed. Uniformly sow seed, at rate specified by use of approved mechanical seed drills, rotary hand seeders, hydraulic equipment or hydroseed to produce a uniform seed and nutrient application.

1. Seed shall be applied in the appropriate mixture and at the rate specified per manufacturer.

B. Hand rake and/or rolling with light roller may be used in lieu of Mulch if approved or directed by Engineer.

C. All seeded areas shall be watered within 72 hours of seeding. Watering of seeded areas shall be such that it shall not cause flooding, erode soils, or damage to seeded areas.

D. Areas will not be accepted as complete until generally weed-free, 3-inch stand of grass is established.

E. Areas that fail to establish growth for any reason whatsoever shall be reseeded until the areas are covered with a satisfactory growth of grass as approved by Engineer or Representative.

F. Hydroseeding shall be the preferred application method for all sites.

3.41 MULCHING

A. All areas shall be mulched with suitable mulch at time of seed application unless otherwise specified.

B. Straw mulch applied at 2 ton/acre and anchored with wood fiber mulch (hydromulch) at 500-

750 lbs./acre shall be the preferred method.