If you are this type of system | You must comply with subpart V monitoring by:1 |
Systems that are not part of a combined distribution system and systems that serve the largest population in the combined distribution system | |
(1) System serving [GREATER THAN EQUAL TO]100,000 | April 1, 2012. |
(2) System serving 50,000-99,999 | October 1, 2012. |
(3) System serving 10,000-49,999 | October 1, 2013. |
(4) System serving [LESS THAN]10,000 | October 1, 2013 if no Cryptosporidium monitoring is required under § 141.701(a)(4) or October 1, 2014 if Cryptosporidium monitoring is required under § 141.701(a)(4) or (a)(6) |
Other systems that are part of a combined distribution system | |
(5) Consecutive system or wholesale system | -at the same time as the system with the earliest compliance date in the combined distribution system. |
1 The State may grant up to an additional 24 months for compliance with MCLs and operational evaluation levels if you require capital improvements to comply with an MCL.
40 C.F.R. §141.620