scope:

This standard describes the procedures for shock chlorination and bacteriological testing for the disinfection of wells for potable water service. These procedures shall be followed prior to using any new or existing well for potable water service if the well may have been contaminated as a result of construction, servicing, or maintenance. The chlorination procedures provided in this standard are for the gravel pack, well casing, pump, and appurtenant piping and are presented in the sequence in which they generally would be implemented.

Purpose

The purpose of this standard is to establish the minimum requirements for the disinfection of wells for potable water service, including procedures for chlorination and bacteriological evaluation.