Calaveras County Municipal Code Art. X Disinfection

A. Following the installation of the well casing, the well contractor shall disinfect the gravel pack, the interior and exterior surfaces of the well casing, the electrical wiring, the water pipe within the casing with potable water containing either a calcium or sodium hypochlorite solution (household bleach) having a concentration of no less than one-hundred parts per million, by means of a spray wand inserted into the well through the air vent.

B. To disinfect a well, disinfectant shall be placed in the well and mixed with the water by surging the pump or by re-circulating water into the well by means of a spray wand inserted through to air vent to mix and distribute the disinfectant within the well.

C. The water shall be circulated until disinfectant is detected at all outlets. Thereafter, the well shall remain idle for at least twenty-four hours and then be pumped to waste until the water is free of disinfectant.

D. Following the replacement or re-installation of a well pump or any repair that opens the water system to the outside environment, the well and all appurtenances shall be disinfected.

(Ord. No. 2946, § 1, 5-6-2008).

Public drinking water systems are subject to regulation under applicable sections of the California Government Code, the California Health and Safety Code and the California Water Code.

(Ord. No. 2946, § 1, 5-6-2008).