B08_Attch1_SOW-BillWmsRiverNWR-PotableWaterFiltrationSystReplcmt_5pp.pdf

BILL WILLIAMS RIVER NWR POTABLE WATER FILTRATION

LA PAZ COUNTY, ARIZONA SYSTEM REPLACEMENT 2024

STATEMENT OF WORK

Bill Williams River National Wildlife Refuge (NWR)

Potable Water Filtration System Replacement Lake Havasu National Wildlife Refuge Complex

Parker, Arizona July 2024

PART 1: GENERAL

1.1 SUMMARY:

A. Background: Bill Williams River NWR uses an on-site water treatment system to provide potable water sourced from Lake Havasu to two office buildings and three RV pads for employees, volunteers, and visitors. The water treatment system is due for replacement to ensure continued delivery of safe, clean drinking water.

The existing system pumps surface water from Lake Havasu, injects chlorine, and stores that water in a 3,000-gallon raw water tank. When the 3,000-gallon finish water tank is low the filtration system is manually activated to filter the stored raw water and refill the finish water tank. A pump moves water from the raw water storage tank through a sand filter, carbon filter, and cartridge filter before being passed through the reverse osmosis filtration unit. The reverse osmosis product water is injected via a chlorinator before being stored in the 3,000-gallon finish water tank. When the domestic water system has demand, the finish water pump draws water from the finish water tank into the distribution network.

The goal of this contract is to remove and replace all the existing filtration equipment, pumps, aboveground piping, controls, and ancillary components in the filtration room and tank house building and provide a complete filtration system with new equipment and components.

B. Description of Work: The work shall consist of all labor, equipment, supplies and materials to remove and dispose of the existing water treatment equipment, pumps, aboveground piping, and controls (excluding the two 3,000-gallon water tanks) and install new filtration equipment, pumps, aboveground piping, and controls to provide potable water compliant with the Safe Drinking Water Act and meeting all technical requirements in Part 2: Products. For equipment not listed in Part 2: Products the Contractor shall match the technical specifications of the existing equipment.

The new system shall operate without the need for manual actions to activate, maintain, 140FC125Q0007 - Attch 1 and deactivate the filtration process. Through the use of water level switch, pressure switches, and equipment integrated controls the filtration system shall be capable of drawing water from the 3,000-gallon raw water tank for treatment and storage in the 3,000-gallon finish water tank. Alarms shall be local to the filtration system to alert Refuge staff of system status. The surface water pump utilized to fill the 3,000-gallon raw water tank will remain manually operated and is not part of the work under this contract.

Water shall be treated with a carbon filter and Ultra-violet to dechlorinate and sterilize before entering the distribution network.

C. Location: Work under this contract is located at the Bill Williams River National Wildlife Refuge in Parker, Arizona, in La Paz County.

D. Site Visit: Contractors are encouraged to visit the project site and inspect existing conditions prior to submitting quotes. See the solicitation for information and point of contact regarding the date and time of the site visit.

E. Period of Performance: All work under this contract shall be completed within 120 calendar days of Notice of Award.

F. Hours of Operation: Available work hours are Monday through Friday between the hours of 7:00 a.m. and 5:00 p.m. local time. The facility is closed on recognized Federal holidays.

G. Occupancy: Bill Williams River NWR will be occupied during the performance of work under this contract. Water outages should be minimized to the shortest duration possible.

All water outages shall be coordinated with the Government at least two days in advance.

Any water outages anticipated to last longer than 24 hours must be approved by the Government.

1.2 SUBMITTALS:

A. Government approval is required for submittals with a "G" classification. Submittals not having a "G" classification are for information only.

SD-03 Product Data Reverse Osmosis Equipment G Carbon Filtration Equipment Sand Filtration Equipment Pump(s) Ultra-violet Equipment Chlorination Equipment

SD-06 Test Reports Water Quality Analysis (Finish Water) G

SD-11 Closeout Submittals Manufacturer’s Warranty Contractor’s Warranty

B. All submittals must be transmitted to the Contracting Officer’s Representative utilizing Transmittal form R2EN-021. Allow at least 10 working days for review. Submittals shall come directly from the Contractor with their stamp and signature of approval; submittals will not be accepted from sub-contractors or suppliers. Do not commence work which requires approval of any submittals until receipt of returned submittals with an acceptable action. Do not allow submittals without an acceptable action marking to be used for the project.

C. Identification of Submittals: Completely identify each submittal by showing at least the following information:

Name and address of submitter (Contractor), plus name and telephone number of the individual to contact for further information.

Name of project as it appears in these specifications.

Contract number, submittal number, and specification section number to which the submittal applies.

Whether this is an original submittal or resubmittal.

Each item shall clearly note the manufacturers name and address, trade name, product, lot, style, color, catalog designation or model number, and locations of use.

D. There will be no approval of submittals prior to bid opening and award. Submittals will be evaluated based on the requirements of the specifications and drawings, during the submittal process after contract award.

E. Submittals must show clearly that the product, sample or shop drawing conforms to the specifications.

1.3 QUALITY ASSURANCE:

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work. This contract incorporates materials, applications, and tests by reference, with the same force and effect as if they were given in full text.

B. All plumbing work shall be performed by an Arizona licensed plumber.

C. Product basis: Where contract documents call out a specific product or manufacturer, it is understood that an equal or better product is acceptable, as approved in the submittal process. The installation or use of any products shall not impact the warranty periods required under this contract.

1.4 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: Protect products incorporated into the work from damage while in transit to the site. Products must be delivered in original unopened containers with manufacturer’s name, brand designation, and contents legibly indicated. The containers shall bear the referenced specification number, type, and class as applicable.

B. Storage: If needed, the Contractor shall provide temporary storage facilities for products.

Storage shall comply with the manufacturer’s instructions. The storage area shall permit access for inspection and handling.

C. Handling: Load and unload products protecting them from damage.

1.5 SITE CONDITIONS:

A. Work areas shall be marked appropriately to alert unauthorized personnel to work in progress.

B. Existing property not indicated for demolition, shall be protected. All damage by

Contractor’s activities shall be repaired by the Contractor at no additional cost to the Government.

C. Contractor is responsible for safety on the project site and shall take measures to maintain a safe area around the project site which is used by Government employees and the public. Applicable OSHA regulations shall be adhered to by the Contractor.

D. Protect all vegetation inside and outside work limits. All rutting caused by Contractor activities shall be filled and contoured to match adjacent areas. Areas damaged by Contractor activities shall be repaired.

E. Bathroom facilities, water, and electric are available at the site for the Contractor’s reasonable use.

PART 2: PRODUCTS

2.1 REVERSE OSMOSIS FILTRATION UNIT:

A. Minimum production rate: 7,200 Gallons per day B. Recovery Rate: 50% or better

2.2 DOMESTIC NETWORK (FINISH WATER):

A. The pressure range on the domestic network must maintain between 40-60 PSI at a maximum flow rate of 25 GPM at the point on entry into the domestic network.

B. The Contractor shall match new equipment drawdown to existing system drawdown.

PART 3: EXECUTION

3.1 WATER QUALITY ANALYSIS:

A. Upon completion of work a water quality analysis shall be performed on the finish water showing compliance with all Maximum Contaminant Levels (MCL) found in the Safe

Drinking Water Act.

B. Inspections:

1. Routine inspections will be performed by the government Field Inspector (FI).

Inspection of items of work by the FI will not relieve the Contractor of the requirement to meet project requirements. The FI shall be informed 24 hours in advance of work requiring their observation. After being informed in advance the FI’s non-attendance shall not prohibit the Contractor from proceeding with work in the FI’s absence.

2. For final inspection, notify the COR in writing at least three working days before the completion date so the Government can schedule final inspection. The superintendent shall be present during the final inspection.

3.2 DISPOSAL OF DEBRIS:

Demolition debris shall be removed from the project site and disposed of in a legal disposal site by the Contractor. Contractor shall pay all fees required for disposal.

END OF SECTION