a)
Following initial bin classification under Section
611.1010(c), a
filtered system supplier must provide the level of treatment for
Cryptosporidium required by Section
611.1011 according to the
applicable schedule set forth in subsection (c).
b) Following initial determination of the
mean Cryptosporidium level under Section
611.1012(a)(1),
an unfiltered system supplier must provide the level of treatment for
Cryptosporidium required by Section
611.1012 according to the
applicable schedule set forth in subsection (c).
c) Cryptosporidium Treatment Compliance Dates
BOARD NOTE: The federal compliance dates and possible
two-year extension corresponding
40 CFR
141.713(c) provides are all
past dates. The Board retains the text of subsections (c)(1) through (c)(5) as
amended for guidance implementing the rules under Sections
611.1001(f) and
611.1013(d) and
(e).
1) A supplier serving 100,000 or more persons
was required to comply with Cryptosporidium treatment requirements before April
1, 2012.
2) A supplier serving
50,000 to 99,999 persons was required to comply with Cryptosporidium treatment
requirements before October 1, 2012.
3) A supplier serving 10,000 to 49,999
persons was required to comply with Cryptosporidium treatment requirements
before October 1, 2013.
4) A
supplier serving fewer than 10,000 persons was required to comply with
Cryptosporidium treatment requirements before October 1, 2014.
5) The Agency may allow no more than an
additional two years for complying with the treatment requirement if it
determines that additional time is necessary for the supplier to make capital
improvements to implement the treatment.
d) If the bin classification for a filtered
system supplier changes following the second round of source water monitoring,
as determined under Section
611.1010(d),
the supplier must provide the level of treatment for Cryptosporidium required
by Section
611.1011 on a schedule approved
by the Agency in a SEP.
e) If the
mean Cryptosporidium level for an unfiltered system supplier changes following
the second round of monitoring, as determined under Section
611.1012(a)(2),
and if the supplier must provide a different level of Cryptosporidium treatment
under Section
611.1012 due to this change, the
supplier must meet this treatment requirement on a schedule approved by the
Agency in a SEP.
