Ohio Admin. Code 3745-81-75 - Recordkeeping, reporting and actionable requirements
A public water system that uses a surface water source shall
report monthly to the director the information specified in paragraphs (A) to
(F) of this rule. In addition, a public water system that
must
monitor for TTHM, HAA5, bromate, chlorite, total residual chlorine, chlorine
dioxide, or TOC shall comply with the applicable sections of paragraph (G) of
this rule.
(A) Turbidity
determinations as required by paragraph (A) of rule
3745-81-74
of the Administrative Code shall be reported to the director within ten days
after the end of each month the public water system serves water to the public.
The information reported shall include the following:
(1) The total number of filtered water
turbidity determinations during the month. When filtered water turbidity is
recorded continuously, the reported number shall be the number of hours in
which turbidity values were recorded during the month.
(2) The number and per cent of filtered water
turbidity determinations during the month which are less than or equal to the
turbidity limits specified in paragraph (A)(1) or (B)(1) of rule
3745-81-73
of the Administrative Code for the filtration method being used. For public
water systems which continuously monitor turbidity, the duration and per cent
of filtered water turbidity readings during the month which are less than or
equal to the turbidity limits in paragraph (A) (1) or (B)(1) of rule
3745-81-73
of the Administrative Code shall be reported.
(3) The date and value of each turbidity
determination during the month which exceeds any applicable turbidity limit
specified in rule
3745-81-73
of the Administrative Code for the filtration method being used. For public
water systems which continuously monitor turbidity, the date and duration of
each period during the month that the turbidity exceeds the turbidity limit
specified in paragraph (A)(1) or (B)(1) and paragraph (A)(2) or (B)(2) of rule
3745-81-73
of the Administrative Code shall be reported.
(B) The following individual filter turbidity
monitoring activities as required by paragraph (B) of rule
3745-81-74
of the Administrative Code shall be reported to the director as follows:
(1) Confirmation that individual filter
monitoring was conducted shall be reported within ten days after the end of
each month the public water system serves water to the public.
(2) Public water systems serving a combined
population of at least ten thousand shall report individual filter turbidity
monitoring results within ten days after the end of each month the public water
system serves water to the public only if measurements demonstrate one or more
of the following conditions:
(a) For any
individual filter that has a measured turbidity level of greater than 1.0
nephelometric turbidity units (NTU) in two consecutive measurements taken
fifteen minutes apart, the public water system shall report the filter number,
the turbidity measurements, and the date and times on which the exceedance
occurred. In addition, the public water system shall either produce a filter
profile for the filter within seven days of the exceedance and report that the
filter profile has been produced or report the obvious reason for the
exceedance.
(b) For any individual
filter that has a measured turbidity level of greater than 0.5 NTU in two
consecutive measurements taken fifteen minutes apart between the end of the
first four hours of continuous filter operation after the filter has been
backwashed or otherwise taken offline, and at the end of a filter run the
public water system shall report the filter number, the turbidity measurements,
and that
the
date and times on which the exceedance occurred. In addition, the public water
system shall either produce a filter profile for the filter within seven days
of the exceedance and report that the profile has been produced or report the
obvious reason for the exceedance.
(c) For any individual filter that has a
measured turbidity level of greater than 1.0 NTU in two consecutive
measurements taken fifteen minutes apart at any time in each of three
consecutive months, the public water system shall report the filter number, the
turbidity measurements, and the dates and times on which the exceedance
occurred. In addition, the public water system shall conduct a self-assessment
of the filter within fourteen days of the exceedance and report that the
self-assessment was conducted. The self assessment shall consist of at least
the following components: assessment of filter
performance; development of a filter profile; identification and prioritization
of factors limiting filter performance; assessment of the applicability of
corrections; and preparation of a filter self-assessment report.
(i)
Assessment of
filter performance.
(ii)
Development of a filter profile.
(iii)
Identification
and prioritization of factors limiting filter performance.
(iv)
Assessment of
the applicability of corrections.
(v)
Preparation of a
filter self-assessment report.
(d) For any individual filter that has a
measured turbidity level of greater than 2.0 NTU in two consecutive
measurements taken fifteen minutes apart at any time in each of two consecutive
months, the public water system shall report the filter number, the turbidity
measurements, and the dates and times on which the exceedance occurred. In
addition, no later than thirty days following the exceedance, the public water
system shall arrange for a comprehensive performance evaluation (CPE) to be
conducted by the director. If the director decides not to conduct the CPE, then
the CPE shall be conducted by a third party in accordance with procedures
acceptable to the director. A report of the evaluation shall be completed and
submitted to the director no later than ninety days following the exceedance.
The director may require the public water system to correct any or all of the
deficiencies noted in the report.
(3) Public water systems serving a combined
population of less than ten thousand shall report individual filter turbidity
monitoring results within ten days after the end of each month the public water
system serves water to the public only if measurements demonstrate one or more
of the following conditions:
(a) For any
individual filter (or combined filter effluent for systems with two filters
that monitor combined filter effluent in lieu of individual filters) that has a
measured turbidity level of greater than 1.0 nephelometric turbidity units
(NTU) in two consecutive measurements taken fifteen minutes apart, the public
water system shall report the filter number, the turbidity measurements, and
the dates and times on which the exceedance occurred. In addition, the public
water system shall report the cause of the exceedance if known.
(b) For any individual filter (or combined
filter effluent for systems with two or fewer filters that monitor combined
filter effluent in lieu of individual filters) that has a measured turbidity
level of greater than 1.0 NTU in two consecutive measurements taken fifteen
minutes apart at any time in each of three consecutive months, the public water
system shall report the filter number, the turbidity measurements, and the
dates and times on which the exceedance occurred. In addition, the public water
system shall conduct a self-assessment of the filter (or both filters if the
system monitors the combined filter effluent in lieu of individual filters)
within fourteen days of the exceedance and report that the self-assessment was
conducted unless the requirement to conduct a comprehensive performance
evaluation which includes a self-assessment of this filter is required during
this time period by paragraph(B)(3)(c) of this rule. The self-assessments shall
consist of at least the following components: assessment of filter performance; development of a filter
profile; identification and prioritization of factors limiting filter
performance; assessment of the applicability of corrections; and preparation of
a filter self-assessment report.
(i)
Assessment of filter performance.
(ii)
Development of a
filter profile.
(iii)
Identification and prioritization of factors limiting
filter performance.
(iv)
Assessment of the applicability of
corrections.
(v)
Preparation of a filter self-assessment report.
(c) For any individual
filter (or combined filter effluent for systems with two or fewer filters that
monitor combined filter effluent in lieu of individual filters) that has a
measured turbidity level of greater than 2.0 NTU in two consecutive
measurements taken fifteen minutes apart at any time in each of two consecutive
months, the public water system shall report the filter number, the turbidity
measurements, and the dates and times on which the exceedance occurred. In
addition, no later than sixty days following the exceedance, the public water
system shall arrange for a comprehensive performance evaluation (CPE) to be
conducted by the director. If the director decides not to conduct the CPE, then
the CPE shall be conducted by a third party in accordance with procedures
acceptable to the director. A report of the evaluation shall be completed and
submitted to the director no later than one hundred twenty days following the
exceedance. The director may require the public water system to correct any or
all of the deficiencies noted in the report. If a CPE has been completed within
twelve months prior to the exceedance or if the director and public water
system are jointly participating in an ongoing comprehensive technical
assistance (CTA) at the system, the director may not require a new CPE to be
conducted.
(4) Recorded
results of individual filter turbidity monitoring shall be maintained by the
public water system for a minimum of three years.
(C) Disinfection information specified in
rule
3745-81-74
of the Administrative Code shall be reported to the director within ten days
after the end of each month the public water system serves water to the public.
The information reported shall include the following:
(1) For each day, the lowest residual
disinfectant concentration in milligrams per liter in water entering the
distribution system.
(2) The date
and duration of each period when the residual disinfectant concentration in
water entering the distribution system fell below 0.2 milligram per liter free
chlorine or one milligram per liter combined chlorine and when the director was
notified of the occurrence.
(3) The
following information on all the residual disinfectant concentration samples
taken in the distribution system in conjunction with total coliform monitoring
pursuant to rule
3745-81-21
of the Administrative Code:
(a) The number of
residual disinfectant concentration samples analyzed for the distribution
system.
;
(b)
The number of samples with residual disinfectant concentration determined to be
less than 0.2 milligram per liter free chlorine or one milligram per liter
combined chlorine.
;
and
(c) The per cent of
samples with residual disinfectant concentration of at least 0.2 milligram per
liter free chlorine or one milligram per liter combined chlorine.
(4) The CT parameters during peak
hourly flow rate for each day, including the temperature, pH, disinfectant,
residual disinfectant concentration, disinfectant contact time, actual CT
value, required CT value, and the number of days, if any, for which the
required CT value is larger than the actual CT value.
(D) Each public water system, upon
discovering that a waterborne disease outbreak potentially attributable to that
public water system has occurred, shall report that occurrence to the director
as soon as possible, but no later than by the end of the next business
day.
(E) If at any time the
turbidity in representative samples of filtered water in accordance with
paragraph (A) of rule
3745-81-74
of the Administrative Code exceeds one NTU, for conventional or direct
filtration or alternative filtration surface water systems, the public water
system shall notify the director as soon as practical, but no later than
twenty-four hours after the exceedance is known. For all other surface water
systems, if at any time the turbidity in representative samples of filtered
water in accordance with paragraph (A) of rule
3745-81-74exceeds
five NTU, the public water system shall notify the director as soon as
practical, but no later than twenty-four hours after the exceedance is
known.
(F) If at any time the
residual disinfectant concentration falls below 0.2 milligram per liter free
chlorine or one milligram per liter combined chlorine in the water entering the
distribution system, the public water system shall notify the director as soon
as possible, but no later than by the end of the next business day. The public
water system also shall notify the director by the end of the next business day
whether or not the residual disinfectant concentration was restored to at least
0.2 milligram per liter free chlorine or one milligram per liter combined
chlorine within four hours.
(G)
This paragraph is applicable to public water systems that monitor for TTHM,
HAA5, bromate, chlorite, chlorine, chloramines, chlorine dioxide, or TOC:
(1) Public water systems monitoring for TTHM
and HAA5 under the provisions of rule
3745-81-24
of the Administrative Code shall ensure that the analytical results are
reported to the director according to the requirements specified in rule
3745-89-08
of the Administrative Code. In order to determine compliance with the sample
monitoring plan for total TTHM and HAA5, the sample submission reports shall
contain the sample location description. Compliance with the MCLs for TTHM and
HAA5 in rule
3745-81-12
of the Administrative Code shall be determined by the director. Exceedance of
the operational evaluation level for TTHM and HAA5 in paragraph (D) of rule
3745-81-24
of the Administrative Code shall be determined by the director.
(2) Public water systems monitoring for
bromate under rule
3745-81-23
of the Administrative Code shall report the following:
(a) The number of samples taken during the
last quarter.
(b) The location,
date, and result of each sample taken during the last quarter.
(c) The arithmetic average of the monthly
arithmetic averages of all samples taken in the last year.
(d) Whether the MCL was exceeded.
(3) Public water systems
monitoring for chlorite under rule
3745-81-23
of the Administrative Code shall report the following:
(a) The number of entry point samples taken
each month for the last three months.
(b) The location, date, and result of each
sample (both entry point and distribution) taken during the last
quarter.
(c) For each month in the
reporting period, the arithmetic average of all samples taken in each three
sample sets taken in the distribution system.
(d) Whether the MCL was exceeded, in which
month, and how many times it was exceeded each month.
(4) Public water systems monitoring for total
chlorine under rule
3745-81-70
of the Administrative Code shall report the following:
(a) The number of samples taken during each
month of the last quarter.
(b) The
monthly arithmetic average of all samples taken in each month for the last
twelve months.
(c) The arithmetic
average of the monthly averages for the last twelve months.
(d) Whether the MRDL was exceeded.
(5) Public water systems
monitoring for chlorine dioxide under rule
3745-81-70
of the Administrative Code shall report the following:
(a) The dates, results, and locations of
samples taken during the last quarter.
(b) Whether the MRDL was exceeded.
(c) Whether the MRDL was exceeded in any two
consecutive daily samples and whether the resulting violation was acute or
nonacute.
(6) Public
water systems monitoring monthly or quarterly for TOC under rule
3745-81-77
of the Administrative Code and required to meet the enhanced coagulation or
enhanced softening requirements in rule
3745-81-77
of the Administrative Code shall report the following:
(a) The number of paired (source water and
treated water, prior to continuous disinfection) samples taken during the last
quarter.
(b) The location, date,
and result of each paired sample and associated alkalinity taken during the
last quarter.
(c) For each month in
the reporting period that paired samples were taken, the arithmetic average of
the per cent reduction of TOC for each paired sample and the required TOC per
cent removal.
(d) Calculations for
determining compliance with the TOC per cent removal requirements, as provided
in rule
3745-81-77
of the Administrative Code.
(e)
Whether the public water system is in compliance with the enhanced coagulation
or enhanced softening per cent removal requirements in rule
3745-81-77
of the Administrative Code for the last four quarters.
(7) Public water systems monitoring monthly
or quarterly for TOC under rule
3745-81-77
of the Administrative Code and meeting one or more of the alternative
compliance criteria in rule
3745-81-77
of the Administrative Code shall report the following:
(a) The alternative compliance criterion that
the system is using.
(b) The number
of paired samples taken during the last quarter.
(c) The location, date, and result of each
paired sample and associated alkalinity taken during the last
quarter.
(d) The running annual
arithmetic average based on monthly averages (or quarterly samples) of source
water TOC for public water systems meeting a criterion in paragraph (D)(1) or
(D)(3) of rule 3745-81-77 of the Administrative Code or of treated water TOC
for public water systems meeting the criterion in paragraph (D)(2) of rule
3745-81-77
of the Administrative Code.
(e) The
running annual arithmetic average based on monthly averages (or quarterly
samples) of source water SUVA for public water systems meeting the criterion in
paragraph (D)(6) of rule
3745-81-77
of the Administrative Code or of treated water SUVA for public water systems
meeting the criterion in paragraph (D)(7) of rule
3745-81-77
of the Administrative Code.
(f) The
running annual average of source water alkalinity for public water systems
meeting the criterion in paragraph (D)(3) of rule
3745-81-77
of the Administrative Code and of treated water alkalinity for public water
systems meeting the criterion in paragraph (E)(1) of rule
3745-81-77
of the Administrative Code.
(g) The
running annual average for both TTHM and HAA5 for public water systems meeting
the criterion in paragraph (D)(3) or (D)(5) of rule
3745-81-77
of the Administrative Code.
(h) The
running annual average of the amount of magnesium hardness removal (as
CaCO3, in mg/l) for public water systems meeting the
criterion in paragraph (E)(2) of rule
3745-81-77
of the Administrative Code.
(i)
Whether the public water system is in compliance with the particular
alternative compliance criterion in rule
3745-81-77
of the Administrative Code.
Notes
Promulgated Under: 119.03
Statutory Authority: 6109.04
Rule Amplifies: 6109.03, 6109.04
Prior Effective Dates: 12/31/1990, 01/01/2002, 01/01/2005, 01/01/2010, 10/05/2013
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