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Fallon County staff outline plan to pig and chlorinate golf‑course water line after coliform tests
Summary
County staff recommended excavating and inspecting the golf‑course supply line, installing a restrained gate valve and using pigging followed by a high‑concentration chlorine slug to remove organic buildup; commissioners asked staff to dig and verify pipe and return parts/order recommendations next week.
Fallon County water staff reported repeated total‑coliform detections and presented an operational plan to remediate a suspected organic buildup in a water main that serves the golf course.
Staff recommended digging to expose a line riser to verify pipe material, installing an epoxy‑coated ductile‑iron gate valve restrained with mega lugs to enable isolated disinfection, using a pigging device to mechanically remove organic material, then injecting a slug of chlorine (a target between roughly 25–50 parts per million during treatment, with total chlorination capacity discussed at ~100 pounds/24 hours) and holding it in the isolated line for about 24 hours with sequential sampling along the pipeline.
The plan anticipates returning to a continuous disinfection regimen after successful remediation and testing. Staff cautioned the operation may temporarily raise chlorine in the adjacent pond to low ppm levels during the slug but estimated the pond concentrations would dissipate quickly. Commissioners authorized crews to dig test sites this week to confirm pipe type and asked staff to return next week with firm parts‑ordering recommendations and cost estimates.
