§141.536. My system has developed an inactivation ratio; what must we do now? — Inbound Citations

(b) Compliance with the profiling and benchmark requirements in §§ 141.530 through 141.544.

(c) Third, your system must use these weekly log inactivations to develop a disinfection profile as specified in § 141.536.

If you are a subpart H system required to develop a disinfection profile under §§ 141.530 through 141.536, your system must develop a Disinfection Benchmark if you decide to make a significant change to your disinfection practice. Your system must consult with the State for approval before you can implement a significant disinfection practice change.

(2) Systems may use disinfection profile(s) developed under § 141.172 or §§ 141.530 through 141.536 in lieu of developing a new profile if the system has neither made a significant change to its treatment practice nor changed sources since the profile was developed. Systems that have not developed a virus profile under § 141.172 or §§ 141.530 through 141.536 must develop a virus profile using the same monitoring data on which the Giardia lamblia profile is based.