This bid is for the routine maintenance of one of the City of Watertown's municipal wells. The well was last rehabbed in March of 2016. The 10-inch 2-stage pump is set at a depth of 150ft and is currently pumping at an average of 1800 GPM. The scope of work includes pulling the well and checking the condition of the bowls, motor, column, and shaft. The well shall be sounded and videotaped when the pump has been removed. The contractor will supply a report with the findings of the status of the well and pulled equipment to the owner and discuss the findings before commencing the rehab. 1. Equipment and materials loading and mobilization to site.
2. Lock out the power supply and remove the pump.
3. Test the well motor and provide a report.
4. Inspect equipment, including and provide a report on the condition of each.
5. Clean, check, and straighten all shafts or recommend replacement.
6. Replace shaft couplings, sleeves, and bushings as needed.
7. Pressure wash all well piping and replace 10" Column pipe as needed.
8. Televise well to evaluate and determine what rehabilitation type is recommended
if any.
9. Bail from well after predetermined treatment to the original well depth (712 feet) -
disposal of material to be coordinated with the owner, but the contractor's
responsibility.
10.Televise well to verify that the treatment method was adequate.
11.Disinfect well according to industry standards or at a minimum meet the
requirements of Wisconsin Administrative Code NR 812.41 (1).
12.Complete installation of rehabilitated well pump and all associated equipment
removed, tape wrap all joints/couplings, and replace the pump base seal.
13.Operate well to waste, neutralize well discharge until clear, and collect a sample
for analysis.
14.Conduct a well-yield performance test.
15.Replace the well pump and associated equipment including the stuffing box,
reinstall the motor, test the pump, take water samples until safe water is verified,
and put the well back into service.
16.Notify Wisconsin DNR and obtain, fill out, and complete all the appropriate
paperwork and reporting requirements for the owner and Wisconsin DNR.
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