LT2 Round 1 Source Water Monitoring Data

EPA has recently posted results of monitoring for Cryptosporidium and E. Coli collected during the initial round of monitoring under the Long Term 2 Enhanced Surface Water Treatment Rule (LT2). Water systems used this data to determine their need for additional treatment (their “bin”) or, in the case of small systems, additional cryptosporidium monitoring. This data may also be used by EPA to inform the details of the second round of cryptosporidium monitoring scheduled to begin in 2015.

The data can be reviewed on EPA’s website at