ATTACHMENT 1 Lake Sherwood Well Drilling Specifications.pdf

1. SECTION 011000 SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This project is located at the Lake Sherwood Recreation Area in the Monongahela National Forest. The project site is approximately 11 miles north east of Neola, West Virginia, via WV State Secondary Route 14.

B. Project Summary Description: The project includes but is not limited to the following major items of work as described in the specifications. The following descriptions are provided as an outline of major work items and shall not be constructed as an inclusive or complete listing of all items of Work under this Contract.

Base Items

1. Well drilling and development shall include locating the well, engineering, submitting required documents and fees to the state of West Virginia, drilling, casing, grouting, liner, well screen if needed, well cap, yield test, developing and disinfecting the new well.

2. Submersible well pump shall include furnishing and installing a submersible well pump, discharge pipe, conductors

C. General Notes:

1. The new well shall be located within 500’ of the existing well and not adversely affect the existing well.

2. Conductors for the submersible well pump shall be terminated a minimum of 5’ from the well cap to allow for splicing and connection to conductors that will run to the new pumphouse.

3. Trenching, backfill and water pipe from the pitless adapter to the new well house are not included in this contract.

B. Government or Owner refers to the USDA Forest Service. Contracting Officer (CO) refers to the person assigned by the USDA Forest Service to administer the contract. Soon after Contract award, the Contracting Officer will designate a Contracting Officers Representative (COR).

1.02 USE OF PREMISES

C. General: Contractor may use on-site power, water, and toilet facilities as available.

D. Confine storage of materials to areas as approved by the COR at the contractor’s own risk.

E. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

F. Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with CO and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

G. Existing Utilities: Notify COR of proposed locations and times for excavation.

1. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

1.03 CAMPING

H. Camping is not allowed at the construction site without written permission from the Forest.

1.04 FIELD VERIFICATION

I. Field verify all new and existing dimensions affecting the work of this contract before ordering products

1.05 PERMITTING

J. The Contractor shall be responsible for obtaining any required permits and associated fees required to complete the project.

2. PRODUCTS (NOT USED)

3. EXECUTION (NOT USED)

END SECTION

4. SECTION 011400 WORK RESTRICTIONS

PART 1 - GENERAL

1.1 USE OF PREMISES

A. The Government will conduct a pre-construction survey with the Contractor to review and document the existing project conditions prior to construction.

Lake Sherwood Recreation Area will be closed to the public from Oct. 25, 2020 thru April 13 2021 weather pending.

1. Perform construction only during normal working hours (8 AM to 5 PM Monday thru Friday, other than holidays), unless otherwise approved to in advance by the COR. Clean up work areas and install safety barriers at the end of each work period.

2. Confine operations at the site to area necessary to drill and develop a new well.

3. Repair damage caused by construction operations. Take precautions to protect the public.

4. Space on the premises is available for the Contractor's storage and related activities.

1.2 OCCUPANCY REQUIREMENTS

A. The Government will have access to the recreation area for administrative use and maintenance.

1.3 SCHEDULING

A. The Contractor shall coordinate scheduling and timing of required administrative procedures to avoid conflicts and insure orderly progress of the work. Proposed schedule shall be provided to the COR during the pre-construction meeting prior to initiation of on-site work.

B. The Contractor’s schedule shall consider seasonal weather patterns for the project area. Any costs incurred by the Contractor due to weather delays shall be borne by the Contractor at no additional cost to the Government.

C. The water system shall be in operation for the public April 13, 2021.

1.4 PROTECTION OF PUBLIC AND PROPERTY

A. Provide and maintain temporary barricades and warning signs to control access to protect the public and construction personnel from construction hazards.

B. Comply with Federal, State, and local laws, rules, and regulations concerning construction safety and health standards. Do not expose the public to or require any workers to work under conditions that are unsanitary, hazardous, or dangerous to health and safety.

C. Repair damage to existing public and private improvements to original condition at no additional cost to the Government

1.5 WASTE DISPOSAL

1. Drilled material shall be disposed on site in water line trench.

B. Remove all trash and debris from the site on a regular basis. Do not dispose of any materials other than drilled material, onsite by burial or burning.

PART 2 - .PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

END OF SECTION

SECTION 15289 - SUBMERSIBLE WELL PUMPS AND

APPURTENANCES

2. PART 1 - GENERAL

SUMMARY

A. This section specifies the submersible well pump, discharge piping, and appurtenances associated with the proposed well.

RELATED SECTIONS

B. 332100 – Water Supply Well

SUBMITTALS

C. Catalog cuts for all items specified in this section

D. Operation and maintenance manuals for all items specified in this section

1. The Contractor shall furnish installation and owners manual for the submersible pump.

5. PART 2 - PRODUCTS

SUBMERSIBLE WELL PUMP

A. Size

1. 1 HP, 60 Hertz, single-phase, 3450 rpm, 1 ¼” NPT discharge size, flow 15 gallons per minute.

B. Pump Motor

1. The motor shall be capable of continuous operation under water at the conditions specified. The materials used in the motor shall be suitable for their application from the standpoint of corrosion, resistance, and mechanical performance.

2. Suitable precautions shall be taken to restrict sand, silt, or foreign material from entering the motor.

C. Pump

1. Pump Shaft – Stainless steel shaft with one piece motor to shaft coupling.

2. Pump Shell – heavy wall stainless steel.

3. Staging – Noryl impellers and diffusers, stainless steel floating bearing inserts.

D. Pump - Motor Coupling - The pump motor coupling shall be solid stainless steel and capable of transmitting the total torque and thrust of the unit in either direction. Stainless steel suction screen.

DISCHARGE PIPE

E. The discharge pipe shall be 1”, 200 psi, high density blue poly pipe be manufactured for potable water us

POWER CABLE

F. The power cable and all fittings shall be watertight at the pressure encountered in use. The cable shall be one continuous length and shall not contain any splices. The cable's jacket material must be oil- and water-resistant synthetic rubber, plastic, or other suitable protective material. The cable shall be of the size recommended by the manufacturer of the submersible pump and shall have a sufficient conductor area to meet the minimum requirement of the Insulated Power Cable Engineer's Association (IPCEA) code for operation in air.

SANITARY WELL SEAL

G. The vented sanitary well seal shall permit the installation of electrical and control cables and shall meet the requirements of the "Minimum Standards for Well Construction" for West Virginia.

SAFETY ROPE

H. ¼” poly safety rope.

6. PART 3 - EXECUTION

GENERAL

A. All work shall be performed in a thorough workmanlike manner by a licensed well pump installer or well driller in accordance with the well pump manufacturer's recommendations and West Virginia “Public Water System Design Standards, 64CSR77.”

B. Cover wells while unattended during construction.

C. Install the submersible pump to the depth as determined after drilling the well, by well driller and approved by COR. Pump and discharge piping shall be plumb and true.

D. Sufficient submarine cable shall be provided and installed as recommended, to connect the submersible pump to a minimum of 5’ from the well head. In the well, the cable shall be attached to the discharge pipe at intervals recommended by the manufacturer of the pump with non-corrosive metal bands. Install the well seal as shown on the drawings and make connections.

E. Safety rope shall be attached to the pump and extend to at least 5’ beyond the well head.

7. PART 4 - MEASUREMENT AND PAYMENT

METHOD OF MEASUREMENT

Measurement for submersible pump and discharge pipe shall be lump sum quantity.

Payment item shall be Submersible Pump and Discharge Pipe.

SECTION 332100 - WATER SUPPLY WELLS

3. PART 1 - GENERAL

SUMMARY

This Section includes the following:

1. Water supply wells.

2. Associated specialties.

PERFORMANCE REQUIREMENTS

Minimum Tested Water Supply Well Performance Capacity: 16 gallons per minute.

DEFINITIONS

Water Well Construction includes mobilization, labor for water supply well installation, casing materials, grout, and packing materials to comply with minimum performance requirements specified. The well is to be drilled to an estimated depth of 100’, with an estimated 40’ of 6” diameter steel casing. A well screen may be needed.

Pump Testing includes the well development, well pump testing, pump test reporting, and chlorination.

Sampling and Testing includes sampling, testing and reporting of water tests for the new well.

West Virginia Department of Health Interpretive Rules, 64CSR77, “Public Water System Design Standards” is the same as “Standards”.

SUBMITTALS

An application for Public Water System Well Application, EW-77 B and Public Water Supply System Application for a Permit to Construct, Modify or Renovate, EW- 100, shall be completed by the Contractor and jointly signed by the contractor and the Forest Service, and submitted to the West Virginia Department of Health.

The Contractor shall provide the following:

One copy of West Virginia Department of Health Water Well Completion Report, SW-258. Contractor shall submit two copies of the report to the West Virginia Department of Health within 30 days of completing the well.

Drill hole substrata written test results.

Pump Test data written results.

Water Sample written results clearly stating MCL for each contaminant, corresponding test result with units and clearly stating if the contaminant exceeds the MCL.

Pump operation and maintenance manual and pump curve.

QUALITY ASSURANCE

AWWA Compliance: Comply with AWWA A100 for water supply wells and West Virginia Department of Health Interpretive Rules, 64CSR46, “Water Well Design Standards”.

Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

8. PART 2 - PRODUCTS

Schedule 40 galvanized steel casing meeting or exceeding AWWA Standard A- 100 must be placed into a drill hole that is at least a nominal four (4) inches larger in diameter than the casing. Steel casing must be 6” diameter, and the dimensional and wall thickness specifications for steel casing that is appropriate for this type of well are shown in Table 64-46 B (page 17) of the WV 64CSR46, “Water Well Design Standards”.

Well screen shall be stainless steel with openings based on sieve analysis of formation or gravel pack materials and to allow 20 gallons per minute. Well screen shall be commercially manufactured.

Filter packs shall be silica based sand or gravel and shall meet the requirements of WV

46CSR46.

Grout shall be neat cement, bentonite with cement mixtures or bentonite, mixed to manufacturer’s specifications.

Water used during the initial construction of the water well shall be potable water treated to retain a free chlorine residual of two parts per million (2ppm).

Packers shall be made of material that shall not impart taste, odor, toxic substance or bacterial contamination to the well water.

Well cap shall meet State of West Virginia requirements but must be at least a metal sanitary cap that fits over the top of the casing forming a waterproof and vermin seal with threaded hole for electrical PVC conduit. Well cap shall have an integral vent screen. The vent shall terminate in a downturned position, at or above the top of the casing or pitless unit in a minimum 1 ½ inch diameter opening covered with a 24 mesh, corrosion resistant screen. The pipe connecting the casing to the vent shall be of adequate size to provide rapid venting of the casing. There shall be no other openings in the well cap. The well cap shall be locking type.

Pitless adapter shall be a weld on type or approved equal, State of West Virginia approved, with minimum 3.5’ bury depth.

9. PART 3 - EXECUTION

LOCATING THE WELL

The well driller shall locate the proposed well within the area shown on attached maps.

The water well shall be located as far as possible from any existing or potential sources of contamination in accordance with WV 64CSR46, Table 64—46 A shown below.

The well driller shall submit Public Water System Well Application, EW-77 B and Public Water Supply System Application for a Permit to Construct, Modify or Renovate, EW-100 to the Forest Service for review prior to submitting the forms to the West Virginia Department of Health.

INSTALLATION

Construct well according to Water Well Design Standards, West Virginia Department of Health Interpretive Rules, 64 CSR 46, and Design Standards for Public Water Supply Systems, West Virginia Department of Health, Interpretive Rules, 64 CSR 42 by a State of West Virginia Certified Water Well Driller

Enlarge pilot hole and install permanent casing, screen, and grout. Install first section of casing with hardened steel driving shoe of an OD slightly larger than casing couplings if threaded couplings are used.

Set casing and liners round, plumb, and true to line.

Perform grouting operations as per “Standards”.

Develop wells to maximum yield per foot of draw down.

Extract maximum practical quantity of sand, drill fluid, and other fine materials from water-bearing formation.

Avoid settlement and disturbance of strata above water-bearing formation.

Do not disturb sealing around well casings.

Continue developing wells until the maximum specific capacity is obtained from the completed well.

Install pump, piping and pitless adapter as shown on the Drawings and manufacturers recommendations.

Provide permanent casing with well cap. Install with top of casing a minimum of 18 inches above grade.

Do not damage power cable during installation.

FIELD QUALITY CONTROL

Plumbness and Alignment Testing: Comply with AWWA A100, Section 8.

Samples, Records, and Reports: Take samples of substrata formation at 5-foot intervals and at changes in formation throughout entire depth of each water supply well as the Water Well Regulations, West Virginia Department of Health Interpretive Rule, 64 CSR19. Form SW-258 Water Well Completion Report shall be submitted to the West Virginia Department of Health by a WV certified water well driller.

1. Furnish samples of water-bearing formation to testing laboratory and well-screen manufacturer for mechanical sieve analysis if the formation is unconsolidated material.

2. Prepare reports on static level of ground water, level of water for various pumping rates, and depth to water-bearing strata.

Performance Testing: Conduct final pumping tests after wells have been constructed, cleaned, and tested for plumbness and alignment. Test pump the new developed well as per West Virginia Department of Health Interpretive Rule 64 CSR77 and record on the Forest Service provided form. (modify as needed for time of pumping/recharge). The test shall be performed by a West Virginia Certified Water Well Driller.

1. Provide discharge piping to conduct water to locations where disposal will not create a nuisance or endanger adjacent property.

2. Measure elevation to water level in wells.

3. Test Pump: Variable capacity test pump with capacity equal to maximum expected yields at pressure equal to drawdown in wells, plus losses in pump columns and discharge pipes.

4. Start and adjust test pumps and equipment to required pumping rates.

Provide for continuous pumping for at least eight (8) hours or until stabilized drawdown has continued for at least six (6) hours when tested at

1.5 times the design pumping rate.

5. Record readings of water levels in wells and pumping rates as per the FS provided form Well Pump Test and Recovery Data Sheet.

6. Record well recovery water levels in well as per the FS provided form Well Pump Test and Recovery Data Sheet until the static water level has become stable.

8. Remove sand, stones, and other foreign materials that may become deposited in wells after completing final tests.

Water Analysis Testing: Make bacteriological, physical, and chemical analyses of water from the well and report the results. Samples of water shall be collected in laboratory provided sample bottles and tested by a State of West Virginia certified laboratory for the following constituents.

Antimony Arsenic Aluminum Asbestos Barium Beryllium Cadmium Chloride Chromium Color Copper Corrosivity Cyanide Fluoride Foaming agents Iron Lead Manganese Mercury Nitrate Nitrite Odor (Threshold number) pH Selenium Silver Sulfate Thallium Total Coliform (2 tests, at least 24 hours apart) Total Dissolved Solids Turbidity Water temperature (At the site) Zinc

CLEANING

Disinfect water supply wells according to AWWA A100 and AWWA C654 before testing well pumps.

Clean tested and developed water supply wells of foreign substances. Swab casings using alkalis, if necessary, to remove foreign substances.

PROTECTION

Water Quality Protection: Prevent well contamination, including undesirable physical and chemical characteristics.

Ensure that mud pit will not leak or overflow into streams or wetlands. When well is accepted, remove mud and solids in mud pit from Project site and restore site to finished grade.

Provide casings, seals, sterilizing agents, and other materials to eliminate contamination; shut off contaminated water.

10. PART 4 - MEASUREMENT AND PAYMENT

METHOD OF MEASUREMENT

Measurement for Water Supply Well shall be lump sum quantity.

Payment item shall be Water Supply Well.

END OF SECTION 332100