January 5, 2006: Long Term 2 Enhanced Surface Water Treatment Rule finalized by USEPA. “The purpose of the LT2 rule is to reduce illness linked with the contaminant Cryptosporidium and other disease-causing microorganisms in drinking water. The rule will supplement existing regulations by targeting additional Cryptosporidium treatment requirements to higher risk systems. This rule also contains provisions to reduce risks from uncovered finished water reservoirs and to ensure that systems maintain microbial protection when they take steps to decrease the formation of disinfection byproducts that result from chemical water treatment….The final rule is effective on March 6, 2006.”
Commentary: This regulation was a critical component of the Reg Neg and FACA negotiations that I participated in from 1992 to 2000. Utilities were given a number of years to develop compliance plans to meet this relatively complex drinking water regulation.