This standard describes procedures, materials, and requirements for the dechlorination of chlorinated or chloraminated water discharges into the environment.

The purpose of the standard is to define the minimum procedures for the dechlorination of chlorinated or chloraminated water being discharged, including regulations, discharge site preparation, plans and procedures, sampling and testing of discharge water, chemical and nonchemical methods of dechlorination, dechlorination chemicals, and verification.

This standard can be referenced in specifications for the dechlorination of low or highly chlorinated water discharges into the environment.