Section 327IAC8-2.6-21. Reporting requirements; reporting and record keeping requirements; enhanced treatment for Cryptosporidium

   (a) A PWS shall report:

(1) sampling schedules under 40 CFR 141.702, as incorporated under section 8(a)(2) of this rule; and

(2) source water monitoring under section 8(a)(6) of this rule;

unless the PWS notifies the commissioner that it will not conduct source water monitoring due to meeting the criteria under 40 CFR 141.701(d), as incorporated under section 8(a)(1) of this rule.

  (b) A PWS shall report the use of uncovered finished water storage facilities to the commissioner as described under section 14 of this rule.

  (c) A PWS using filtration shall report their Cryptosporidium bin classification as described under section 11 of this rule.

  (d) A PWS shall report disinfection profiles and benchmarks to the commissioner as described under sections 9 and 10 of this rule prior to making a significant change in disinfection practice.

  (e) A PWS shall report one (1) of the following to the commissioner:

(1) If approved by the commissioner, a PWS may certify operation within required parameters for treatment credit rather than reporting monthly operational data for toolbox options.

(2) In accordance with the schedule set forth in the following table, a PWS shall report the specified information for any microbial toolbox options used to comply with treatment requirements under section 12 of this rule:

Table 21
Microbial Toolbox Reporting Requirements
Toolbox option	A PWS shall submit the following information:	On the following schedule:
Watershed control program (WCP)	Notice of intention to develop a new or continue an existing watershed control program.	Not later than two (2) years before the applicable treatment compliance date in section 13 of this rule.
	Watershed control plan.	Not later than one (1) year before the applicable treatment compliance date in section 13 of this rule.
	Annual watershed control program status report.	Every twelve (12) months, beginning one (1) year after the applicable compliance date in section 13 of this rule.
	Watershed sanitary survey report.	For community PWSs, every three (3) years beginning three (3) years after the applicable compliance date in section 13 of this rule. For noncommunity PWSs, every five (5) years beginning five (5) years after the applicable compliance date in section 13 of this rule.
Alternative source/intake management	Verification that the PWS has relocated the intake or adopted the intake withdrawal procedure reflected in monitoring results.	Not later than the applicable treatment compliance date in section 13 of this rule.
Presedimentation	Monthly verification of the following: (1) continuous basin operation; (2) treatment of one hundred percent (100%) of the flow; (3) continuous addition of coagulant; (4) at least 0.5-log mean reduction of influent turbidity or compliance with alternative performance criteria approved by the commissioner.	Monthly reporting within ten (10) days following the month in which the monitoring was conducted, beginning on the applicable compliance date in section 13 of this rule.
Two-stage lime softening	Monthly verification of the following: (1) chemical addition and hardness precipitation occurred in two (2) separate and sequential softening stages prior to filtration; (2) both stages treated one hundred percent (100%) of plant flow.	Monthly reporting within ten (10) days following the month in which the monitoring was conducted, beginning on the applicable compliance date in section 13 of this rule.
Bank filtration	Initial demonstration of the following: (1) unconsolidated, predominantly sandy aquifer; (2) setback distance of at least twenty-five (25) feet (0.5-log credit) or fifty (50) feet (1.0-log credit).	Not later than the applicable treatment compliance date in section 13 of this rule.
	If monthly average of daily maximum turbidity is greater than one (1) NTU, then the PWS shall report result and submit an assessment of the cause.	Report within thirty (30) days following the month in which the monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Combined filter performance	Monthly verification of combined filter effluent (CFE) turbidity levels less than or equal to fifteen-hundredths (0.15) NTU in at least ninety-five percent (95%) of the four (4) hour CFE measurements taken each month.	Monthly reporting within ten (10) days following the month in which the monitoring was conducted, beginning with the applicable treatment compliance date in section 13 of this rule.
Individual filter performance	Monthly verification of the following: (1) individual filter effluent (IFE) turbidity levels less than or equal to fifteen-hundredths (0.15) NTU in at least ninety-five percent (95%) of samples each month in each filter; (2) no individual filter greater than three-tenths (0.3) NTU in two (2) consecutive readings fifteen (15) minutes apart.	Monthly reporting within ten (10) days following the month in which the monitoring was conducted, beginning with the applicable treatment compliance date in section 13 of this rule.
Demonstration of performance	Results from testing following a protocol approved by the commissioner.	Not later than the applicable treatment compliance date in section 13 of this rule.
	As required by the commissioner, monthly verification of operation within conditions of commissioner approval for demonstration of performance credit.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Bag filters and cartridge filters	Demonstration that the following criteria are met: (1) process meets the definition of bag or cartridge filtration; (2) removal efficiency established through challenge testing meets criteria in sections 7 through 22 of this rule.	Not later than the applicable treatment compliance date in section 13 of this rule.
	Monthly verification that one hundred percent (100%) of plant flow was filtered.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Membrane filtration	Results of verification testing demonstrating the following: (1) removal efficiency established through challenge testing that meets criteria in sections 7 through 22 of this rule; (2) integrity test method and parameters, including: (A) resolution; (B) sensitivity; (C) test frequency; (D) control limits; and (E) associated baseline.	Not later than the applicable treatment compliance date in section 13 of this rule.
	Monthly report summarizing the following: (1) all direct integrity tests above the control limit; (2) if applicable, any turbidity or results of alternative indirect integrity monitoring approved by the commissioner triggering direct integrity testing and the corrective action that was taken.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Second stage filtration	Monthly verification that one hundred percent (100%) of flow was filtered through both stages and that the first stage was preceded by a coagulation step.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Slow sand filtration (as secondary filter)	Monthly verification that both a slow sand filter and a preceding separate stage of filtration treated one hundred percent (100%) of the flow from Subpart H sources.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Chlorine dioxide	Summary of CT values for each day as described in section 20 of this rule.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
Ozone	Summary of CT values for each day as described in section 20 of this rule.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.
UV	Validation test results demonstrating operating conditions that achieve required UV dose.	Not later than the applicable treatment compliance date in section 13 of this rule.
	Monthly report summarizing the percentage of water entering the distribution system that was not treated by UV reactors operating within validated conditions for the required dose as specified in section 20(d) of this rule.	Within ten (10) days following the month in which monitoring was conducted, beginning on the applicable treatment compliance date in section 13 of this rule.

(Water Pollution Control Division; 327 IAC 8-2.6-21; filed May 7, 2010, 9:30 a.m.: 20100602-IR-327080198FRA)