B08-Attach-1-SOW.pdf

STATEMENT OF WORK

TO

21-015 NEW WELLS

AT

CRESTON NATIONAL FISH HATCHERY

I. GENERAL CONDITIONS

A. This SOW has changed from the previous SOW using these requirements. The requirements have changed based on feedback and questions.

B. The Contractor shall provide all material, equipment, and labor required to install and connect one new well to the existing system. The well should be a free-flowing artesian flow to a depth of approximately 300 feet.

C. The existing well was constructed in the 1958 and exceeded its lifespan. The hatchery needs to complete the permitting process to operationally use the well.

D. The Contractor shall be responsible for installing all materials described in Section

VIII.

E. The Well Driller shall have all certificates and licenses required by law for the execution of the work, and shall comply with all Federal, State, or local laws, ordinances, rules, regulations, and codes relating to performance of the work.

F. Typical working hours are 7:30 am to 4:00 pm Monday through Friday. Any work that deviates from this schedule or during a holiday requires Contracting Officer Representative approval. These times can be negotiable during the pre-construction meeting.

G. Any conflict or overlap of State of Montana, EPA, OSHA, and other applicable Federal, State, and local regulations, the Contractor shall follow the most stringent provision.

II. WORK SITE CONDITIONS

A. The site of the work is at Creston National Fish Hatchery.

B. The Contractor is expected to coordinate a utility locate, one-call, prior to work.

III. TEMPORARY FACILITIES AND CONTROLS

A. Temporary Utilities

1. The site does have access to electricity and potable water with no charge or metering. The Contractor shall supply a porta-john.

2. The Contractor shall be responsible for the daily removal and disposal of all debris from demolition and construction activities.

B. Site access and equipment storage areas

1. All Contractor operations (including storage of materials) upon

Government premises shall be confined to areas authorized or approved by the Hatchery Manager, or his designee.

2. The Contractor shall restore all work and storage areas and areas disturbed by construction to their original condition, or as approved by the Hatchery

Manager, or his designee, upon completion of the work

C. Protection and Restoration:

1. The Contractor shall protect all structures and vegetation during the progress of the work and remove all debris and unused materials from the site.

2. Upon completion of the work, the Contractor shall restore, at their expense, all vegetation to its original condition, including the replacement any facility or landscaping which has been damaged.

3. The Contractor shall limit removal of any vegetation to that which interferes with the construction, and shall seed any disturbed soil with native grass. The Contractor shall obtain the seed mix from the Hatchery Manager.

D. Delivery and Storage: Material shall be delivered to the site in a dry and undamaged condition and stored out of contact with the ground. Materials shall be covered with weather tight covering and kept dry. Storage accommodations shall provide good air circulation and protection from surface staining, when appropriate.

IV. MEANS AND METHODS

A. The Contractor will complete a well log report with the local Montana Department

Natural Resource District and pay any fees. The Contractor is expected to complete all other required paperwork and submit copies to USFWS.

B. Final Inspection

1. The Contractor shall request a final inspection in writing at least ten (10) days prior to the anticipated date of completion.

2. Work will not be considered READY FOR FINAL INSPECTION until all the work has been completed and the Contractor has certified that all items are properly operating and in strict compliance with all contract terms and conditions.

3. The Contractor and/or his project supervisor shall be at the job site during the final inspection.

V. CONTRACTOR QUALIFICATIONS

A. The Well Driller shall have a minimum of 3 years of completing similar work in this

Statement of Work. The Well Driller shall have a well driller’s license in the State of Montana.

VI. PERFORMANCE

A. The Contractor shall coordinate the construction start date with the Contracting

Officer. The project shall be completed and available for use within 800 calendar days from the date the Notice to Proceed (NTP) is issued. Additional time will be allowed, if needed, to obtain permits and lead times for materials. Construction will not continue on Saturdays, Sundays, or Federal Government holidays without prior permission of the Contracting Officer.

B. During the performance period of the contract, the Contractor shall be available for conference calls as needed with the Contracting Officer, the Contracting Officer’s

Representative (COR), and the Government On-Site Inspector to discuss project progress and/or problems.

VII. PROJECT REQUIREMENTS

A. All work shall be in accordance with the ARM and State of Montana Rule Chapter

36.

B. Any temporary lines from the drilled well to the point of discharge can occur in the raceways located south of the well, which is about 175 feet away and down a hill and across the road. The station will close off traffic as much as possible, but the station may need to access the site for fish harvesting, egging, or any other process.

The Contractor should coordinate with that station on potential access and timing.

C. The wells are considered non-potable well. The wells will be used to enhance hatchery operation.

D. The wells should be considered a flowing artesian well, unless discovered otherwise. The existing well flows at a peak of 240 gpm, but the well used to flow

700 gpm minimum. The piezometric pressure is 8.6 psi, last measured in February

1999.

1. The current pump has not been used in decades.

E. General Legal Description: SE¼ SE¼ S10, T28N, R20W

F. Any removal of materials not outlined in this project shall be placed in a condition the same, or better, prior to the start of the project.

G. The Contractor shall provide labor, materials, tools, equipment, and any other work to complete all items in the construction documents.

H. Requirements may be changed based on field conditions. The changes shall be approved by the COR prior to commencing these changes.

I. Well Requirements

1. Requirements may vary based on the method of well development. The document in VIII.A shall be referenced for the particular method.

2. Pump test shall include:

a. The pump test shall be in strict accordance with the requirements in

ARM 36.12.121.

b. Provide detailed written documentation of pump test results to the

Government as soon as possible using the required forms in ARM

36.12.121.

3. The well casing shall be centered in the bore hole. The casing shall extend a minimum of 12 inches above the final grade. The casing shall be made watertight and overlap to prevent misalignment.

a. Diameter of 12 inches, sizing depends on drop pipe

b. The well casing shall be connected with bell, coupling hubs, or threaded couplings

c. Install plumb and true to line.

d. Joining of pipe shall be done by reaming pipe and removing burrs and debris. Bevel the end and make solvent cemented joints.

e. Extend to the bottom of the drill hole.

f. It was determined from the county floodplain map that this well is located outside of the 100-year floodplain

g. Installed to prevent leakage of artesian flow.

4. Well seal shall be a cap with holes for piping and cables, which fits into top of casing and is removable, waterproof, and vermin proof.

5. Well pad shall be installed so the casing is centered on the pad. The pad shall be a minimum of 40 inches by 40 inches by eight inches thick. The minimum psi shall be 3000.

6. Well screen shall be same size and material as casing and be factory installed slots. Screen couplings shall be butt-type and stainless steel coupling rings.

The maximum entering velocity shall be 0.1 feet per second.

7. Centralizers shall be located every 20 feet to center the well. The stainless steel centralizers shall not be placed on the screen interval or sealed interval.

The thickness of the centralizers shall be ¼-inch and be evenly spaced in groups of three or four.

8. Filter pack shall be placed in the space between the well screen and the borehole walls throughout the entire screen interval. The minimum thickness of the filter pack shall be six-inches around the well. The filter pack shall be grout and placed continuously from bottom to top to ensure filling space in one operation. Do not perform other operations in well within 72 hours after grouting. When quick-setting cement is used, this period may be reduced to

24 hours. The mix shall be in proportions of one cubic foot or a 94 pound sack of cement with 5 to 6 gallons of water. The mix shall not contain fly ash.

Grout shall be placed with a tremie pipe, pumping, or pressure from the bottom of the well.

9. Well development shall be performed by water jetting, surge block, backwashing, or air jetting. Development result in the maximum practical and sustainable yield per foot drawdown.

10. The Contractor shall verify that the pump and motor will work within the optimum operation conditions based on actual conditions.

11. Pump shall be submersible, vertical-turbine, and corrosion resistant. The impeller shall be stainless steel.

12. Motor shall be corrosion resistant and capable of continuous operation under water with protected submersible power cable.

a. Comply with NEMA MG 1

b. Motor Sizes: Minimum size as indicated. If not indicated, large enough so driven load will not require motor to operate in service factor range above 1.0.

c. Designed for ambient conditions at the station.

d. Capacity and Torque Characteristics: Sufficient to start, accelerate, and operate connected loads at designated speeds, at installed altitude and environment, with indicated operating sequence, and without exceeding nameplate ratings or considering service factor.

e. Rotor: Random-wound, squirrel cage

f. Bearings: Regreasable, shielded, antifriction ball bearings suitable for radial and thrust loading

g. Enclosure material: Cast iron or rolled steel

h. Windings: Copper magnet wire with moisture-resistant insulation varnish, designed and tested to resist transient spikes, high frequencies, and short time rise pulses produced by pulse-width modulated inverters.

i. Energy- and Premium-Efficient Motors: Class B temperature rise;

Class F insulation.

j. Inverter-Duty Motors: Class F temperature rise; Class H insulation.

k. Thermal Protection: Comply with NEMA MG 1 requirements for thermally protected motors.

13. Discharge piping shall be SDR 5.3, 7, 9 PE, HPDE, or CPVC Schedule 80 pipe for a pressure of no less than 200 psi. PE fittings shall be made of PA, PP, or PVC with serrated male inserts matching the inside of the pipe with bands or crimp rings. Maximum flow shall not exceed 7fps velocity.

14. Well Head shall have a watertight seal and fittings.

J. Water Quality Test

1. The Contractor shall collect the sample and use materials and methods recognized by the State of Montana.

2. The sample shall be analyzed by an EPA or State of Montana certified lab.

3. The following parameters shall be tested:

pH Alkalinity Nitrite

Electrical conductivity Carbonate Nitrite-nitrogen

Bicarbonate Hardness total Phosphate

Calcium Iron Fluoride

Manganese Magnesium Sodium adsorption ratio

Sulfate Nitrate Charge balance

Nitrate-nitrogen Ammonia Total phosphorus

Total Nitrogen Boron Cadmium

Chromium Copper Molybdenum

Nickel Sodium Zinc

Mercury Arsenic Coliform

K. Outside Well Piping

1. Gate Valve

a. Installed to prevent artesian flow into the well house.

b. The valve shall be installed within three feet of the casing.

c. The valve have a riser installed to within six to nine inches of surface in a valve screw stem with a cover marked “WATER”. All materials shall be corrosion resistant.

d. Mueller Resilient Wedge A-2362 RWGV SLXSL, or equal.

e. Install blocking under valve.

2. Pipe

a. Minimum five feet in depth under finished surface.

b. Piping shall be SDR 5.3, 7, 9, HDPE, or CPVC Schedule 80 pipe for a pressure of no less than 200 psi.

c. Deflection must be less than 2%. Fittings shall be used to change directions.

d. Install piping free of sags and high spots, unless otherwise described.

e. Install fittings for changes in direction.

3. Tracer Wire

a. Minimum 10 guage single conducter, standard wire

b. 600 Volt, TW, THWN, THHN or HMWPE insulation, blue in color.

Installed on all water mains and secured.

c. Installed on all buried piping.

d. Terminations points shall be visible above ground.

4. Pressure Test

a. Test line with a minimum of 100 psi over a two hour period. The end of the test shall result in a pressure of 90 psi or above.

b. If the line loses pressure, the Contractor shall repair leaks and retest until the line does not drop below 90 psi.

L. Backflow prevention shall be installed for non-free flowing well.

M. Disinfection

1. Contractor shall prevent contamination

2. Disinfection solution must be equivalent to 50 parts per million chlorine solution.

3. A residual shall be measured at 25 ppm after 24 hours of disinfection.

4. All components that interact with groundwater shall not be laid on the ground.

N. Well log

1. The well log shall be submitted through the submittal process.

2. The well log shall include the following information: legal description, GPS coordinates, description and depth of geologic materials, depth and diameter or dimension of constructed water well, depth and volume of formation stabilizer and size of particles, depth and thickness of grout, casing length and pipe information, screen length and pipe information and screen size, static water level, water levels when pumped at the designed pumping rate, pumping rate, signature of contractor, date of drilling, intended use of water well, name and address of USFWS contact below, and reference of permit/ID/license.

3. Completed within 40 days of well completion.

O. Thrust block

1. Placed at any angle deflection in pipe.

2. Below are the detail requirements of the thrust block.

P. Electricity

1. Coordinate with local power companies prior to service change or disruption.

2. Underground electrical line shall be buried a minimum of three feet. Install warning tape along the total length.

3. All components shall be outdoor compatible.

4. All work shall comply with the most recent National Electric Code.

5. Use existing panel.

6. A VFD shall be installed to control the flow manually from 50% to 100%.

The control for the VFD shall be simple to operate and have a readout.

Q. Well Sizing

1. Install one well and one optional well at the approximant locations shown on the map.

2. 300 feet well depth

3. Pumping rate: 700 – 750 gpm

4. Discharge Piping Size: 8 – 12 inch

a. Assume existing connection is 12 inch

5. Well is likely artesian free flowing and will require frost protection of the inner casing and drop pipe. The protection shall be rated for that region.

R. Existing Well Seal (Shown in Drawings)

1. The existing well leaks when artesian flow is shut off.

2. It is anticipated that the discharge line should adequately control the artesian flow limiting impact on work portion.

3. Two fittings will need to be removed, electrical box and pressure cap.

4. Bolts will likely need to be replaced due to rust.

VIII. POINTS OF CONTACT

A. Hatchery Manager

1. Travis Slivka (406 758-6884)

B. Contracting Officer Representative / Technical Representative

1. Michael Wandersee (303-236-4479)

END OF STATEMENT OF WORK