§ 37-122. Water quality of potable water supply wells.

(a)

Water samples. It is recommended that samples be taken from all private potable water supply wells. The responsibility and expense of these samples shall be borne by the owner. Neither the well drilling contractor or the county shall be responsible for water quality under this chapter.

(b)

Disinfection, samples and reports. Every new or repaired public supply well, after completion of construction or repair, and before being placed in service, shall be thoroughly cleaned of all foreign substances. If necessary, the well casing shall be thoroughly swabbed, using alkalines to remove oil, grease, or joint dope. The well, including the gravel used in gravel well constructions, and the pump and pumping equipment shall be disinfected with a solution containing at least two hundred (200) p.p.m. available chlorine, which shall remain in the well for a period of at least twenty-four (24) hours, or equivalent.

(c)

Continuous treatment. Where a private groundwater source is, or may be subject to continuous or intermittent pollution, provisions should be made for continuous treatment of the water or for abandonment of the source in accordance with section 37-121.

(d)

Chlorides. Any well that is found to have chlorides Cl in excess of acceptable amounts for the intended purpose, shall be plugged so as to effectively prevent it from contaminating freshwater strata, in accordance with section 37-121. The responsibility and expense shall be borne by the owners.

(e)

Disinfection of wells. Wells shall be disinfected as follows:

(1)

All wells installed for the purpose of obtaining groundwater for domestic consumption shall be disinfected prior to the pump installation.

(2)

A disinfectant shall be placed in the well in sufficient quantities to produce a residual of at least two hundred (200) parts per million in the well. Approximately 0.282 pounds per one hundred (100) gallons of water of hypochlorinity containing seventy (70) percent available chlorine is needed for a two hundred (200) parts per million chlorine solution.

(Code 1965, § 36A-9; Ord. No. 70-5, § 9, 12-31-69; Ord. No. 71-3, § 6, 5-4-71)