Attachment_1__LV_Dewatering_Well_Repair_PWS_Final.pdf

RECLAMATION – LEADVILLE TUNNEL TREATMENT PLANT

DEWATERING WELL #1 REPAIR

• Pump Motor connections will be disconnected and reconnected by plant staff.

This work must take place approximately between July 1 and September 30, 2026.

PERFORMANCE WORK STATEMENT (PWS)

1.0 SCOPE

1.1 OBJECTIVE

The purpose for this contract is to acquire contractor services to perform dewatering well repair for one groundwater pumping well near Leadville, Colorado. The Leadville Mine Drainage Tunnel Water Treatment Plant, (Leadville treatment plant), 749 Highway 91, owned and operated by Reclamation, is located near Leadville, Colorado in Lake County. Three pumping wells extract contaminated groundwater from the mine drainage tunnel and convey it to the treatment plant headworks via buried piping. Reclamation is soliciting proposals for the replacement of a well casing screen which has deteriorated and is no longer functioning as designed. This well is located at pump station 10+25 along the tunnel alignment, see attached map.

1.2 BACKGROUND

The Leadville plant processes 1.5-2.5 million gallons per day of mine drainage water to remove dissolved zinc, manganese, iron, and other trace metals in accordance with EPA discharge permit standards. Pumping wells provide raw water influent to the treatment plant via vertical turbine pumps controlled by variable frequency drives through the plant programmable logic control system.

Due to poor water quality, the screened portion of Dewatering well #1 casing has deteriorated and must be replaced. The screen is necessary to prevent particulate material from the tunnel interior from being drawn into the dewatering pump with the potential of damaging the pump.

Access to dewatering well stations is via unimproved forested mining roads, within 5 minutes of the treatment plant, and may require four-wheel drive vehicles.

Contractor shall arrive on site with all equipment and personnel to perform the required tasks unless specifically addressed. Equipment will be in good working order set by industry standards in order to avoid any unnecessary impacts to the environment or project delays.

Government furnished property will include only that specifically listed below, the remainder is the responsibility of the contractor.

Labor for all removal, inspection, installation, and screen cleaning work will be performed by vendor(s) as the project requires work and equipment beyond plant capability, with the following exceptions:

140R6026Q0046

2.0 REFERENCES - The following list of documents are required in the performance of this contract:

Number Title and Edition Date Source

1. Dimensional Data for LMDT Dewatering Wells

September 2025 Leadville Plant – provided as attachment

2. LMDT Dewatering Wells location map

May 2017 Leadville Plant – provided as attachment

3.0 TASKS: The contractor shall perform the following tasks:

3.1 TASK 1: Dewatering Well 1 at Station 10+25

• Travel to Leadville Treatment Plant, check in with plant supervisor to review Job Hazard Analysis, and review job plan.

• Mobilize pump rig to 10+25 pump station, approximately 1 mile of unimproved forest road, and set up pump rig.

• Motor will be disconnected by Reclamation staff.

• Remove existing 100 HP motor and 1500 gpm, American Marsh vertical turbine pump

(approximately 120 feet of 8-inch column pipe and shaft/ oil tube) from Well #1. Bring enough cribbing to lay out 20-foot sections of column pipe and shaft tube on ground adjacent to wells.

• Insert sleeve well casing and new screen inside existing 20-inch OD well casing o Casing will be 16-inch x 0.500-inch x approximately 125 feet o Screen will be Johnson screen, 316 stainless steel, 16-inch x 10 feet x 0.200 slot with stainless steel bottom plate o Screen will be situated below casing within tunnel void space between 140 feet (tunnel floor) and 130 feet (tunnel roof) from top of casing.

o Install dielectric coupler between stainless steel screen and steel casing. Use stainless steel welding rod on stainless steel screen side of coupler, and standard carbon steel welding rod on solid steel casing side of coupler.

• Conduct video inspection of completed installation to be provided to Reclamation after completion of work.

• Re-install pump and motor, Reclamation will re-connect power to motor and start-up pump.

4.0 SECURITY

Work shall be performed during regular business hours listed in Normal Business Hours, while plant staff are on site for access to work areas. Hours may be flexible at the discretion of contracting officer and plant supervisor.

5.0 PLACE OF PERFORMANCE

Work shall take place at dewatering well location specified near Reclamation’s LMDT treatment plant, located at 749 Highway 91, Leadville, Colorado (see site map attached). Local point of contact is plant supervisor Jenelle Stefanic, office phone: 719-486-2035, email: jstefanic@usbr.gov.

6.0 PERIOD OF PERFORMANCE

The term of contract performance will be between July 1 and September 30, 2026, following notification to proceed from Contracting Officer. Onsite work will be scheduled and coordinated with the Bureau of Reclamation LMDT Plant Supervisor.

NORMAL HOURS - Between the hours of 6:30 a.m. and 5:00 p.m. Monday through Friday or at the discretion of Contracting Officer and plant supervisor.

7.0 SAFETY

Contractor shall provide Job Hazard Analysis for work to be reviewed and signed by contract personnel on site prior to beginning work. Contractor will be issued a Special Work Permit on arrival and will abide by Reclamation Safety and Health Standards (RSHS) throughout performance of work.

The Contractor shall be responsible for supplying Reclamation with a list of all Subcontractors being used and their safety documentation as mentioned above. The Contractor is responsible for ensuring ALL Subcontractors comply with the requirements set forth in this statement of work, the regulatory standards and the industry standards incorporated by reference.

The RSHS is available at: http://www.usbr.gov/ssle/safety/RSHS/rshs.html

The OSHA standards are available at; www.osha.gov. OSHA Standards in 29 CFR 1910 and 1926 apply to the work within the scope of this Contract.

8.0 COMPANY EXPERIENCE

Company experience is an objective criterion that determines whether the contractor has or has not performed similar work. Therefore, the contractor shall furnish a list (no more than five) of Federal, State, local government, or commercial projects similar in scope, complexity, and magnitude to the work required under this solicitation that the contractor has completed within the last five years.

These projects must clearly demonstrate the contractor’s successful ability to accomplish projects in a timely and satisfactory manner.

140R6026Q0046 mailto:jstefanic@usbr.gov http://www.usbr.gov/ssle/safety/RSHS/rshs.html http://www.osha.gov/

At a minimum, the contractor shall provide the following information for each project:

• Name of the Customer (Government Agency or Commercial);

• Contract number, type, date, name of project;

• Description of the work performed;

• Initial contract amount and final contract amount; and

• Name, telephone number, and e-mail address of a point of contact for the customer that may be contacted to confirm and verify the information provided.

• The Government may not evaluate references with incorrect or missing phone numbers and contact names, which may potentially result in a less favorable rating of the contractor’s offer.

9.0 PERFORMANCE REQUIREMENTS SUMMARY

Task No. Task Description Performance Indicator

Performance Standard

Minimum Acceptable Quality

Level Section 3.1:

Task 1

Repair / Replace well casing and screen in Dewatering well #1 at Station 10+25

Safe and timely repair or replacement well casing and screen

Restore pumps to full function with no defects or damage to existing equipment

Pump must be fully operational when work is complete

10.0 DATA AND REPORTS - The contractor(s) shall provide the following data and reports:

Item No. Description Content Format Medium Delivery

1. Inspection Video of new screen/ casing installation in Well #1 at Station 10+25.

See Section 3.1 Task 1

Windows media player compatible video

Thumb drive 1 copy to Leadville Plant Supervisor

Due 30 days from work completion

2. As-built documentation, updated Dimensional information

See Section 6.0 Deliverable 2.

Written summary, include applicable drawings or other specifications

MS Word or

PDF

1 copy to Leadville Plant Supervisor

Due 30 days from work completion

11.0 DELIVERABLES

The contractor(s) shall submit the following reports in accordance with paragraph 5.0, “DATA

AND REPORTS”:

1. Post-installation video of completed well #1 casing and screen replacement.

2. Provide as-built drawings/ documentation of well with dimensional data within 30 days of completion of field work.

SECTION C- SUBMITTALS

1.1. REQUIRED SUBMITTALS.

Submittals from the contractor are required during the term of the contract to ensure quality and safe work under the contract. Required submittals are as follows:

RSN

Clause Or Section Title Submittals Required Due date or delivery time

No. of sets to be sent to:

CO QAE

Insurance - Work on a Government Installation 52.228-05

Written certification that the required insurance has been obtained

Within 10 calendar days after award

1 0

Liability Insurance 1452.228-70

Acceptable certificate of liability insurance

Within 10 calendar days after award

1 0

3 Section 8 Company Experience

With Quote

1 1

4 Section 9 Company Past Performance With Quote 1 1

1.2. SUBMITTAL REVIEW.

1.2.1. TIME REQUIRED FOR SUBMITTAL REVIEW. Submittal review will require 10 days for review of each submittal or re-submittal, unless otherwise specified. Time required for review of each submittal or re-submittal begins when the Government receives the complete sets of materials required for a particular RSN and extends through the return mailing postmark date.

1.2.2. REVIEWER ADDRESSES. Submittals shall be provided to the following addresses/individuals:

• Contracting Officer (CO): Bureau of Reclamation - MB-5000; Attn: CO; 2021 4th

Avenue North; Billings, MT 59101

• Contracting Officer Representative (COR): Bureau of Reclamation; Leadville Water

Treatment Plant EC-6400; Attn: Jenelle Stefanic; 749 Hwy 91, Leadville, CO 80461