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§ 141.603 40/30 certification.
(a) Eligibility. You are eligible for 40/30 certification if you had no TTHM or HAA5 monitoring violations under subpart L of this part and no individual sample exceeded 0.040 mg/L for TTHM or 0.030 mg/L for HAA5 during an eight consecutive calendar quarter period beginning no earlier than the date specified in this paragraph (a).
If your 40/30 certification is due | Then your eligibility for 40/30 certification is based on eight consecutive calendar quarters of subpart L compliance monitoring results beginning no earlier than 1 |
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(1) October 1, 2006 | January 2004. |
(2) April 1, 2007 | January 2004. |
(3) October 1, 2007 | January 2005. |
(4) April 1, 2008 | January 2005. |