(a) Following initial bin classification under Sec. 141.710(c), filtered systems must provide the level of treatment for Cryptosporidium required under Sec. 141.711 according to the schedule in paragraph (c) of this section.
(b) Following initial determination of the mean Cryptosporidium level under Sec. 141.712(a)(1), unfiltered systems must provide the level of treatment for Cryptosporidium required under Sec. 141.712 according to the schedule in paragraph (c) of this section.
(c) Cryptosporidium treatment compliance dates.
Cryptosporidium Treatment Compliance Dates Table------------------------------------------------------------------------
Must comply with
Cryptosporidium treatment
Systems that serve . . . requirements no later than .
(1) At least 100,000 people............... (i) April 1, 2012.(2) From 50,000 to 99,999 people.......... (i) October 1, 2012.(3) From 10,000 to 49,999 people.......... (i) October 1, 2013.(4) Fewer than 10,000 people.............. (i) October 1, 2014.------------------------------------------------------------------------\a\ States may allow up to an additional two years for complying with
(i) April 1, 2012.(2) From 50,000 to 99,999 people.......... (i) October 1, 2012.(3) From 10,000 to 49,999 people.......... (i) October 1, 2013.(4) Fewer than 10,000 people.............. (i) October 1, 2014.------------------------------------------------------------------------\a\ States may allow up to an additional two years for complying with
(i) April 1, 2012.(2) From 50,000 to 99,999 people.......... (i) October 1, 2012.(3) From 10,000 to 49,999 people.......... (i) October 1, 2013.(4) Fewer than 10,000 people.............. (i) October 1, 2014.------------------------------------------------------------------------\a\ States may allow up to an additional two years for complying with
(i) April 1, 2012.(2) From 50,000 to 99,999 people.......... (i) October 1, 2012.(3) From 10,000 to 49,999 people.......... (i) October 1, 2013.(4) Fewer than 10,000 people.............. (i) October 1, 2014.------------------------------------------------------------------------\a\ States may allow up to an additional two years for complying with
(i) April 1, 2012.(2) From 50,000 to 99,999 people.......... (i) October 1, 2012.(3) From 10,000 to 49,999 people.......... (i) October 1, 2013.(4) Fewer than 10,000 people.............. (i) October 1, 2014.------------------------------------------------------------------------\a\ States may allow up to an additional two years for complying with
the treatment requirement for systems making capital improvements.
(d) If the bin classification for a filtered system changes following the second round of source water monitoring, as determined under Sec. 141.710(d), the system must provide the level of treatment for Cryptosporidium required under Sec. 141.711 on a schedule the State approves.
(e) If the mean Cryptosporidium level for an unfiltered system changes following the second round of monitoring, as determined under Sec. 141.712(a)(2), and if the system must provide a different level of Cryptosporidium treatment under Sec. 141.712 due to this change, the system must meet this treatment requirement on a schedule the State approves.