Clean_Casings_Repair_Wells_PWS_(FINAL).pdf

Well Cleaning and Repairs

Performance Work Statement (PWS)

Beale AFB, CA

1 Services – Clean Water Well Casings and Replace Pump/Motor Assemblies in Wells

Farm

A) Requirements. Provide the following services at four (4) water pump stations (Wells 4, 5, 6, and 8) located in the Wells Farm Area, at Beale AFB, CA. (see Attachment 2 - Well

Field Map):

Perform water analysis and inspect pump/motor assemblies, Perform general preventative maintenance to the associated electrical panels to extend the useful service life of the water pump stations.

Clean water well casings (see Attachment 3 for well information), Remove existing pump/motor assemblies and replace with new pump/motor assemblies(see Attachment 1 for well pump/motor information), Each well shall be subjected to a water quality analysis prior to the start of any work to clean the casings or to replace the pump/motor assemblies. The results of the water analysis shall then be submitted to 9th Civil Engineering Squadron (9 CES) and the

Contracting Officer in a report. The Contractor shall also perform an inspection of the pump/motor assemblies at each well and submit a report listing their conditions and improvement recommendations. The existing pump/motor assemblies shall be removed prior to starting maintenance on each well. The removed pump/motor assemblies shall be disposed of off-site by the Contractor. The well seals at each location shall be replaced.

To clean the water well casings, the Contractor shall wire brush the perforations in the well casing to remove all blockages and use a cleaning mixture containing acid descaler and dry ice. The cleaning mixture shall be left in the well casing for a period of three hours and repeated for a total time of 40 hours. In addition, the Contractor shall install new pump/motor assemblies and perform corrective maintenance on the electrical panels at each of the four wells, to include replacing weather stripping at each electrical panel.

At no time shall more than one well be taken out of service at the same time due to activities related to this project. After a well has been cleaned and the pump/motor assemblies replaced, it shall be tested, inspected, disinfected, and confirmed to be fully operational. All test results shall be provided to the 9 CES and the Contracting Officer for approval. Work shall not begin on the next well until test results approval has been obtained from 9 CES. All work shall be performed by a licensed Drinking Water Well

Rehabilitation Company who has been in compliance with all applicable federal, state and local regulations & standards.

1) Only one pump/motor assembly shall be taken offline at a time.

2) The new pump/motor assemblies at each well shall match the specifications listed on

Attachment 1.

3) The Contractor shall perform site investigations to become familiar with existing conditions.

4) Prior to the start of any well repair/cleaning, the Contractor shall perform a water quality analysis of each well and submit a report with the results to 9 CES and the

Contracting Officer. The water quality analysis report shall include results of the following: pH, turbidity, iron, conductivity, alkalinity, and total hardness.

5) The Contractor shall perform an inspection of each well and pump/motor assemblies to determine its current condition. Only one pump/motor assembly shall be offline at a time. The Contractor shall submit a report with the findings to 9 CES and the

Contracting Officer.

6) All materials, tools, equipment, etc. to be used within the well casing shall be disinfected prior to being introduced into water reservoirs in accordance with all applicable federal, state, and local regulations and standards and shall be dedicated for potable water use only.

7) All cleaning compounds must be Environmental Protection Agency (EPA), Food and

Drug Administration (FDA), National Sanitation Foundation (NSF) approved.

8) The Contractor shall submit a list of the cleaning compounds, along with MSD sheets to the 9 CES and Contracting Officer for review and approval prior to well casing cleaning work.

9) During the cleaning period, any cracks or problems detected in the well casing, drop piping, water level table shall be recorded on video or digital and the Contractor shall formally submit a Request for Information (RFI) to include recommendations to extend the service life of the water pump station.

10) The Contractor shall determine the pH of the well water prior to cleaning the casings and again after the well has been treated. Only water with a pH value between 6.5 and

8.5 is authorized to be discharged and shall only be discharged after November 1, 2016.

11) Any temporary removal of Government equipment/structures (i.e.-fences, shed, etc.)

shall be coordinated with appropriate base personnel (9 CES, 9 SFS, etc.) The

Contractor shall reinstall the removed equipment/structures immediately following completion of the work at that location.

12) The work shall be accomplished in accordance with all applicable local, state, and federal regulations. Refer to UFC 3-230-02 section 4, as well as the California

Department of Water Resources “Laws for Water Wells” for proper building, maintenance, and operation of underground water wells.

13) All disturbed areas and any damage to existing structures shall be corrected to pre-project condition.

14) The Contractor shall complete the project in its entirety in accordance with the Period of Performance established at the contract award. Any anticipated or known delay shall be immediately brought to 9 CES and the Contracting Officer’s attention.

15) The Contractor shall formally submit the complete and legible permitted disposal documents and Disposal Trip Tickets indicating the date and weight of disposed loads in required number of copies to 9 CES and the Contracting Officer for review and approval.

16) To ensure a successful rehabilitated water well pump stations project, each well shall be subjected to an operational test, and test results shall be submitted to 9 CES for review and approval.

17) The Contractor shall be responsible for having a certified laboratory Bac-T test for each rehabilitated water pump station after the required work has been completed and repair equipment has been removed. Four copies of the certified laboratory test reports shall be formally submitted to 9 CES for review and approval.

18) At the completion of this Water Well Casing Cleaning Project, the Contractor shall submit two detailed “Service Reports” to include a high resolution video / digital recording showing the cleaned water well casing in each of the pump stations to 9

CES for review and approval.

19) All work for the water analysis, electrical panel maintenance, and inspection portions of this requirement may begin after contract award, however, all activities related to pump replacement and cleaning of well casings shall not occur before 1 November

2016.

20) Contractor shall submit an estimated schedule of events, detailing order of events to ensure contractors can meet timelines listed as well as understand the timing requirements listed within this PWS.

B) Provide the following services at three (3) water pump stations (Wells 1, 2, and 9) located in the Wells Farm Area, at Beale AFB, CA:

Perform water analysis and inspect pump/motor assemblies.

Perform general preventative maintenance to the associated electrical panels to extend the useful service life of the water pump stations.

Clean water well casings (see Attachment 3 for well information), The Contractor shall ensure that the pump/motor assemblies are not damaged at any point during their removal, temporary storage, or re-installation. Any damaged pump shall be restored to pre-project condition. Refer to Section 1.A above for service related activities which are to exclude replacing pump/motor assemblies. Also, refer to Section 1.A. (1-20) for related requirements associated with cleaning and electrical maintenance needs.

2 Contractor Responsibilities:

A) The Contractor shall coordinate and prepare all disposal application paperwork required to remove, transport, and dispose the pump/motor assemblies to the Ostrom Rd. landfill.

For a list of requirements for disposal please visit the landfill website at http://www.recologyostromroad.com/ , or call the Recology office. The Contractor shall include the disposal fees into the price of their services.

B) The Contractor shall provide Beale AFB Utility Systems Supervisor with a complete and legible copy of all documents required to perform permitted disposal. Disposal trip tickets shall also be required for turn in, and shall show the date and weight of disposed load.

C) The Contractor shall provide sufficient portable toilets for their own personnel use and properly located away from any water well pump stations and service to prevent bad odor and protect the water wells from contamination.

3 Entry/Access Requirements: An Entry Access Listing (EAL) will be sent to the Contractor upon contract award and shall be turned into 9 CES and the Contract Administrator within five

(5) business days prior to the start of work on base*. The EAL will be sent to Security Forces who will conduct a background check on each employee. After all Contractor employees on the listing have been cleared, the Contract Administrator will notify the Contractor.

*Note that in accordance with the Real ID Act of 2005, individuals cannot access the base with a state-issued identification card or driver’s license from Minnesota, Missouri, Washington State, or American Samoa as of 15 August 2016.

4 Performance Period: The Contractor shall complete work 120 days after contract award.

5 Work Hours: Hours of work will occur Monday - Friday between 7:30 a.m. to 4:30 p.m.

excluding Saturdays, Sundays, and Federal Holidays.

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