10 CSR 60-7.010
Reporting Requirements
PURPOSE: This rule establishes requirements for reports of water sample analyses
and monitoring.
(1) General Information. Except where a
shorter period is specified in this rule, the supplier of water shall report to the department
the results of any test measurement or analysis, except operational analyses required by 10
CSR 60-4.080(3) other than those specified in
sections (4) and (6) of this rule, within the first
ten (10) days following the month in which the
result is received or the first ten (10) days following the end of the required monitoring
period as stipulated by the department,
whichever of these is shortest.
(2) Within forty-eight (48) hours a supplier of
water must report to the department any failure to comply with any drinking water regulation, including failure to comply with monitoring requirements, except where a shorter
period is specified by the department.
(3) A supplier of water is not required to
report analytical results to the department
when a state laboratory performs the analysis
and reports the results to the department.
(4) Disinfection information must be reported within ten (10) days after the end of each
month the system serves water to the public.
(A) Information that must be reported
includes:
1. For each day, the lowest measurement
of residual disinfectant concentration in milligrams per liter (mg/L) 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 five tenths (0.5) mg/L free chlorine or
one (1) mg/L chloramines and when the
department was notified of the occurrence;
and
3. The following information on the
samples taken in the distribution system:
A. Number of instances where the
residual disinfectant concentration is measured;
B. Number of instances where the
residual disinfectant concentration is not
measured but the heterotrophic bacteria plate
count (HPC) is measured;
C. Number of instances where the
residual disinfectant concentration is measured but is less than two tenths (0.2) mg/L
and no HPC is measured;
D. Number of instances where residual disinfectant concentration is less than two
tenths (0.2) mg/L and where the HPC is
greater than five hundred per milliliter (HPC
> 500/mL);
E. Number of instances where the
residual disinfectant concentration is not
measured and the HPC is greater than five
hundred per milliliter (HPC > 500/mL); and
F. For the current and previous month
the system serves water to the public, the
value of V in the following formula:
(c + d + e) × 100
a + b
V =
where:
V = the percentage of time that the disinfectant residual is less than the required
residual;
a = the value in subparagraph (4)(A)3.A. of
this rule;
b = the value in subparagraph (4)(A)3.B. of
this rule;
c = the value in subparagraph (4)(A)3.C. of
this rule;
d = the value in subparagraph (4)(A)3.D. of
this rule; and
e = the value in subparagraph (4)(A)3.E. of
this rule.
(B) If the department determines, based
upon site-specific considerations, that a system has no means for having a sample transported and analyzed for HPC by a certified
laboratory within the requisite time and temperature conditions specified in 10 CSR 60-5
and that the system is providing adequate disinfection in the distribution system, the
requirements of paragraph (4)(A)3. do not
apply.
(C) A system need not report the data listed in subsection (4)(A) of this rule if all of
that data remains on file at the system and the
department determines that the system has
submitted all the information required by subsection (4)(A) of this rule for at least twelve
(12) months.
(5) Reporting and Record-Keeping Requirements for Disinfection By-Products and
Enhanced Surface Water Treatment for community and nontransient noncommunity water
systems using chlorine, chloramines, or chlorine dioxide and for transient noncommunity
water systems using chlorine dioxide as a disinfectant or oxidant.
(A) Disinfection By-Products. Systems
must report the information specified in the
following table:
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(B) Disinfectant Residuals. Systems must
report the information specified in the following table:
(C) Disinfection By-Product Precursors
and Enhanced Coagulation or Enhanced
Softening. Systems must report the information specified in the following table:
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(6) Enhanced Filtration and Disinfection
Reporting and Record-Keeping Requirements.
In addition to the reporting and record-keeping
requirements in sections (4) and (7) of this
rule, a public water system subject to the
requirements of 10 CSR 60-4.050 that provides conventional filtration treatment must
report monthly to the department the information specified in subsections (6)(A) and (6)(B)
of this rule. In addition to the reporting and
record-keeping requirements in sections (4)
and (7) of this rule, a public water system subject to the requirements of 10 CSR 60-4.050
that provides filtration approved under 10 CSR
60-4.050(2)(F) must report monthly to the
department the information specified in subsection (6)(A) of this rule.
(A) Turbidity measurements as required by
10 CSR 60-4.050(2)(A) must be reported
within ten (10) days after the end of each
month the system serves water to the public.
Information that must be reported includes:
1. The total number of filtered water
turbidity measurements taken during the
month;
2. The number and percentage of filtered water turbidity measurements taken
during the month which are less than or equal
to the turbidity limits specified in 10 CSR 604.050(2)(A)1. or 10 CSR 60-4.050(2)(F);
and
3. The date and value of any turbidity
measurements taken during the month which
exceed 1 Nephelometric Turbidity Unit
(NTU) for systems using conventional filtration treatment, or which exceed the applicable maximum level set by the department
under 10 CSR 60-4.050(2)(F).
(B) Systems must maintain the results of
individual filter monitoring taken under 10
CSR 60-4.050(2)(D) for at least three (3)
years. Systems must report that they have
conducted individual filter turbidity monitoring under 10 CSR 60-4.050(2)(D) within ten
(10) days after the end of each month the system serves water to the public. Systems must
report the individual filter turbidity measurement results within ten (10) days after the end
of each month the system serves water to the
public only if measurements demonstrate one
(1) or more of the conditions in paragraphs
(6)(B)1.–2. of this rule. Systems that use lime
softening may apply to the department for
alternative exceedance levels for the levels
specified in this subsection (6)(B) if they can
demonstrate that higher turbidity levels in
individual filters are due to lime carryover
only and not due to degraded filter performance.
1. Surface water systems that serve more
than ten thousand (10,000) people must
report the individual filter turbidity measurement results within ten (10) days after the end
of each month only if measurements demonstrate one (1) or more of the following conditions:
A. For any individual filter that has a
measured turbidity level of greater than one
and zero tenths (1.0) NTU in two (2) consecutive measurements taken fifteen (15) minutes apart, the system must report the filter
number, the turbidity measurement, and the
date(s) on which the exceedance occurred. In
addition, the system must either produce a
filter profile for the filter within seven (7)
days of the exceedance (if the system is not
able to identify an obvious reason for the
abnormal filter performance) and report that
the 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 five
tenths (0.5) NTU in two (2) consecutive measurements taken fifteen (15) minutes apart at
the end of the first four (4) hours of continuous filter operation after the filter has been
backwashed or otherwise taken offline, the
system must report the filter number, the turbidity, and the date(s) on which the
exceedance occurred. In addition, the system
must either produce a filter profile for the filter within seven (7) days of the exceedance (if
the system is not able to identify an obvious
reason for the abnormal filter performance)
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 one
and zero tenths (1.0) NTU in two (2) consecutive measurements taken fifteen (15) minutes apart at any time in each of three (3)
consecutive months, the system must report
the filter number, the turbidity measurement,
and the date(s) on which the exceedance
occurred. In addition, the system must conduct a self-assessment of the filter within
fourteen (14) days of the exceedance and
report that the self-assessment was conducted. The self-assessment must 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;
and
D. For any individual filter that has a
measured turbidity level of greater than two
and zero tenths (2.0) NTU in two (2) consecutive measurements taken fifteen (15) minutes apart at any time in each of two (2) consecutive months, the system must report the
filter number, the turbidity measurement, and
the date(s) on which the exceedance
occurred. In addition, the system must
arrange for the conduct of a Comprehensive
Performance Evaluation by the department or
a third party approved by the department no
later than thirty (30) days following the
exceedance and have the evaluation completed and submitted to the department no later
than ninety (90) days following the
exceedance.
(I) The Comprehensive Performance
Evaluation is a thorough review and analysis of
a treatment plant’s performance-based capabilities and associated administrative, operation,
and maintenance practices. It is conducted to
identify factors that may be adversely impacting a plant’s capability to achieve compliance
and emphasizes approaches that can be implemented without significant capital improvements. The comprehensive performance evaluation must consist of at least the following
components: assessment of plant performance;
evaluation of major unit processes; identification and prioritization of performance limiting
factors; assessment of the applicability of comprehensive technical assistance; and preparation of a Comprehensive Performance
Evaluation report.
(II) If
the
Comprehensive
Performance Evaluation results indicate
improved performance potential, the system
shall implement Comprehensive Technical
Assistance. The system must identify and systematically address plant-specific factors.
The Comprehensive Technical Assistance is a
combination of utilizing Comprehensive
Performance Evaluation results as a basis for
followup, implementing process control priority-setting techniques, and maintaining
long-term involvement to systematically train
staff and administrators.
2. Surface water systems that serve less
than ten thousand (10,000) people must
report the individual filter turbidity measurements within ten (10) days after the end of
each month only if measurements demonstrate one (1) or more of the following conditions.
A. For any individual filter that
exceeds one and zero tenths (1.0) NTU in two
(2) consecutive recordings fifteen (15) minutes apart, the system must report the filter
number(s), corresponding date(s), turbidity
value(s) which exceeded one and zero tenths
(1.0) NTU, and the cause (if known) for the
exceedance(s).
B. For any individual filter that for
three (3) months in a row the turbidity
exceeded one and zero tenths (1.0) NTU in
two (2) consecutive recordings fifteen (15)
minutes apart, the system must conduct a
self-assessment of the filter(s) within fourteen
(14) days of the triggering event. The system
must report the date self-assessment was triggered and the date it was completed. The
self-assessment must 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. The filter
self-assessment is not required if a comprehensive performance evaluation (CPE) was
required.
C. For any individual filter that for
two (2) months in a row the turbidity exceeded two and zero tenths (2.0) NTU in two (2)
consecutive recordings, fifteen (15) minutes
apart, the system must arrange to have a CPE
conducted not later than sixty (60) days following the triggering event. The CPE must
be conducted by the department or a third
party approved by the department. If a CPE
has been completed by the department or a
third party approved by the department within the twelve (12) prior months or the system
and department are jointly participating in an
ongoing Comprehensive Technical Assistance
(CTA) project at the system, a new CPE is
not required. If conducted, a CPE must be
completed and submitted to the department
no later than one hundred twenty (120) days
following the triggering event.
(C) Additional turbidity reporting requirements. Reporting requirements for turbidity
exceedences are in 10 CSR 60-4.050(2)(C).
(7) Stage 2 Disinfectants/Disinfection ByProducts (D/DBP) Rule Reporting and
Record-Keeping Requirements.
(A) Reporting.
1. You must report the following information for each monitoring location to the
department within ten (10) days of the end of
any quarter in which monitoring is required:
A. Number of samples taken during
the last quarter;
B. Date and results of each sample
taken during the last quarter;
C. Arithmetic average of quarterly
results for the last four (4) quarters for each
monitoring location (LRAA), beginning at
the end of the fourth calendar quarter that follows the compliance date and at the end of
each subsequent quarter. If the LRAA calculated based on fewer than four (4) quarters of
data would cause the maximum contaminant
level (MCL) to be exceeded regardless of the
monitoring results of subsequent quarters,
you must report this information to the
department as part of the first report due following the compliance date or anytime thereafter that this determination is made. If you
are required to conduct monitoring at a frequency that is less than quarterly, you must
make compliance calculations beginning with
the first compliance sample taken after the
compliance date, unless you are required to
conduct increased monitoring under section
10 CSR 60-4.094(2)(C)4.;
D. Whether based on 10 CSR 604.094(3)(D)3.A. and this rule, the MCL was
violated at any monitoring location; and
E. Any operational evaluation levels
that were exceeded during the quarter and, if
so, the location and date, and the calculated
total trihalomethanes (TTHM) and haloacetic
acids 5 (HAA5) levels.
2. If you are a surface water system or
ground water under the direct influence of
surface water system seeking to qualify for or
remain on reduced TTHM/HAA5 monitoring, you must report the following source
water total organic carbon (TOC) information
for each treatment plant that treats surface
water or ground water under the direct influence of surface water to the department within ten (10) days of the end of any quarter in
which monitoring is required:
A. The number of source water TOC
samples taken each month during last quarter;
B. The date and result of each sample
taken during last quarter;
C. The quarterly average of monthly
samples taken during last quarter or the result
of the quarterly sample;
D. The running annual average
(RAA) of quarterly averages from the past
four (4) quarters; and
E. Whether the RAA exceeded four
and zero tenths (4.0) mg/L.
3. The department may choose to perform calculations and determine whether the
MCL was exceeded or the system is eligible
for reduced monitoring in lieu of having the
system report that information.
(8) Each system, upon discovering that a
waterborne disease outbreak potentially
attributable to that water system has
occurred, must report that occurrence to the
department as soon as possible but no later
than by the end of the next business day. If the
system is notified by the department or the
Department of Health and Senior Services, of
an outbreak, the reporting requirement of
this section is waived.
(9) A supplier of water shall submit proof to
the department that public notification has
been made within ten (10) days of the date
that the notice was to have been made for initial public notice and any repeat notices. The
supplier of water shall provide a certification
he/she has fully complied with the public
notification regulations, and shall provide a
representative copy of each type of notice distributed, published, posted, and made available to the persons served by the system and
to the media.
(10) Reporting Requirements for the Ground
Water Rule.
(A) In addition to any other applicable
reporting requirements of this rule, a ground
water system regulated under 10 CSR 604.025 must provide the following information
to the department:
1. A ground water system conducting
compliance monitoring under 10 CSR 604.025(4)(B) must notify the department any
time the system fails to meet any departmentspecified requirements including, but not limited to, minimum residual disinfectant concentration, membrane operating criteria or
membrane integrity, and alternative treatment
operating criteria, if operation in accordance
with the criteria or requirements is not
restored within four (4) hours. The ground
water system must notify the department as
soon as possible, but in no case later than the
end of the next business day;
2. After completing any corrective
action under 10 CSR 60-4.025(4)(A), a
ground water system must notify the department within thirty (30) days of completion of
the corrective action; and
3. If a ground water system subject to
the requirements of 10 CSR 60-4.025(3)(A)
does not conduct source water monitoring
under subparagraph (3)(A)5.B. of that rule,
the system must provide documentation to the
department within thirty (30) days of the total
coliform-positive sample that the system met
the department criteria.
(11) Reporting Requirements for the Revised
Total Coliform Rule.
(A) E. coli.
1. A system must notify the department
by the end of the day when the system learns
of an E. coli MCL violation, unless the system learns of the violation after the department office is closed and the department does
not have either an after-hours phone line or
an alternative notification procedure, in
which case the system must notify the department before the end of the next business day,
and notify the public in accordance with 10
CSR 60-8.010.
2. A system must notify the department
by the end of the day when the system is notified of an E. coli-positive routine sample,
unless the system is notified of the result after
the department office is closed and the department does not have either an after-hours
phone line or an alternative notification procedure, in which case the system must notify
the department before the end of the next
business day.
(B) A system that has violated the treatment technique for coliforms in 10 CSR 604.022(9) must report the violation to the
department no later than the end of the next
business day after it learns of the violation,
and notify the public in accordance with 10
CSR 60-8.010.
(C) A system required to conduct an
assessment under the provisions of 10 CSR
60-4.022(9) must submit the assessment
report to the department within thirty (30)
days. The system must notify the department
in accordance with 10 CSR 60-4.022(9)
when each scheduled corrective action is
completed for corrections not completed by
the time of submission of the assessment
form.
(D) A system that has failed to comply
with a coliform monitoring requirement must
report the monitoring violation to the department within ten (10) days after the system
discovers the violation and notify the public
in accordance with 10 CSR 60-8.010.
(E) A seasonal system must certify to the
department, prior to serving water to the public, that it has complied with the departmentapproved start-up procedure.
AUTHORITY: section 640.100, RSMo 2016.*
Original rule filed May 4, 1979, effective
Sept. 14, 1979. Amended: Filed April 14,
1981, effective Oct. 11, 1981. Amended: Filed
July 12, 1991, effective Feb. 6, 1992.
Amended: Filed Dec. 15, 1999, effective
Sept. 1, 2000. Amended: Filed March 17,
2003, effective Nov. 30, 2003. Amended:
Filed Feb. 27, 2009, effective Oct. 30, 2009.
Amended: Filed April 14, 2010, effective Dec.
30, 2010. Amended: Filed Aug. 12, 2015,
effective March 30, 2016. Amended: Filed
June 13, 2018, effective Feb. 28, 2019.
*Original authority: 640.100, RSMo 1939, amended 1978,
1981, 1982, 1988, 1989, 1992, 1993, 1995, 1996, 1998,
1999, 2002, 2006, 2012, 2014.