Rules & Regulations of the State of Tennessee
Title 0400 - Environment and Conservation
Subtitle 0400-45 - Division of Water Resources
Chapter 0400-45-01 - Public Water Systems
Section 0400-45-01-.40 - GROUND WATER RULE
Universal Citation: TN Comp Rules and Regs 0400-45-01-.40
Current through September 24, 2024
(1) General Requirements:
(a) The requirements of this
rule constitute national primary drinking water regulations.
(b) This rule applies to all public water
systems that use ground water except that it does not apply to public water
systems that combine all of their ground water with surface water or with
ground water under the direct influence of surface water prior to treatment
under Rule
0400-45-01-.31.
For purposes of this rule, "ground water system" is defined as any public water
system meeting this applicability statement, including consecutive systems
receiving finished ground water.
(c) All community public water systems
designated as ground water systems for purposes of this rule which serve more
than 50 connections or 150 persons, except for those systems excluded from the
requirements of subparagraph (b) of this paragraph, must meet 4-log treatment
of viruses by continuous chlorination (unless other disinfection methods are
approved) before or at the first customer. Systems meeting 4-log inactivation
and/or removal of viruses must be required to conduct compliance monitoring,
the monitoring requirements under subparagraphs (4)(b) and (c) of this rule.
Systems meeting the 4-log inactivation and/or removal of viruses are still
subject to sanitary surveys, corrective action when deficiencies are identified
and associated public notices under this rule. In no case shall contact time be
less than 15 minutes.
(d) Systems
subject to this rule must comply with the following requirements:
1. Sanitary survey information requirements
for all ground water systems as described in paragraph (2) of this
rule.
2. Microbial source water
monitoring requirements for ground water systems that do not treat all of their
ground water to at least 99.99 percent (4-log) treatment of viruses (using
inactivation, removal, or a Department-approved combination of 4-log virus
inactivation and removal) before or at the first customer as described in
paragraph (3) of this rule.
3.
Treatment technique requirements, described in paragraph (4) of this rule, that
apply to ground water systems that have fecally contaminated source waters, as
determined by source water monitoring conducted under paragraph (3) of this
rule, or that have significant deficiencies that are identified by the
Department or that are identified by the Environmental Protection Agency under
section 1445 of the Safe Drinking Water Act. A ground water system with fecally
contaminated source water or with significant deficiencies subject to the
treatment technique requirements of this rule must implement one or more of the
following corrective action options: correct all significant deficiencies;
provide an alternate source of water; eliminate the source of the
contamination; or provide treatment that reliably achieves at least 4-log
treatment of viruses (using inactivation, removal, or a Department-approved
combination of 4-log virus inactivation and removal) before or at the first
customer.
4. Ground water systems
that provide at least 4-log treatment of viruses (using inactivation, removal,
or a Department-approved combination of 4-log virus inactivation and removal)
before or at the first customer are required to conduct compliance monitoring
to demonstrate treatment effectiveness, as described in subparagraph (4)(b) of
this rule.
5. If requested by the
Department, ground water systems must provide the Department with any existing
information that will enable the Department to perform a hydrogeologic
sensitivity assessment. For purposes of this rule, "hydrogeologic sensitivity
assessment" is a determination of whether ground water systems obtain water
from hydrogeologically sensitive settings.
(e) Ground water systems must comply, unless
otherwise noted, with the requirements of this rule beginning December 1,
2009.
(2) Sanitary Surveys for Ground Water Systems
(a) Ground
water systems must provide the Department, at the Department's request, any
existing information that will enable the Department to conduct a sanitary
survey.
(b) For the purposes of
this rule, a "sanitary survey," as conducted by the Department, includes but is
not limited to, an onsite review of the water source(s) (identifying sources of
contamination by using results of source water assessments or other relevant
information where available), facilities, equipment, operation, maintenance,
and monitoring compliance of a public water system to evaluate the adequacy of
the system, its sources and operations and the distribution of safe drinking
water. Sanitary surveys for the purpose of this paragraph include the
applicable components listed parts 1. through 8. of this subparagraph.
1. Source
2. Treatment
3. Distribution system
4. Finished water storage
5. Pumps, pump facilities, and
controls,
6. Monitoring, reporting,
and data verification,
7. System
management and operation, and
8.
Operator compliance with Department requirements.
(3) Ground water source microbial monitoring and analytical methods.
(a) A
ground water system must conduct triggered source water monitoring if the
conditions identified in parts 1. and either part 2. or 3. of this subparagraph
exist.
1. The system does not provide at
least 4-log treatment of viruses (using inactivation, removal or a
Department-approved combination of 4-log virus inactivation and removal) before
or at the first customer for each ground water source; and
2. The system is notified that a sample
collected under paragraph (1) of Rule
0400-45-01-.07
is total coliform-positive and the sample is not invalidated under paragraph
(3) of Rule
0400-45-01-.07
until March 31, 2016; or
3. The
system is notified that a sample collected under paragraphs (4) through (7) of
Rule
0400-45-01-.41
is total coliform-positive and the sample is not invalidated under subparagraph
(3)(c) of Rule
0400-45-01-.41
beginning April 1, 2016.
(b) A ground water system must collect,
within 24 hours of notification of the total coliform-positive sample, at least
one ground water source sample from each ground water source in use at the time
the total coliform-positive sample was collected under paragraph (1) of Rule
0400-45-01-.07
until March 31, 2016, or collected under paragraphs (4) through (7) of Rule
0400-45-01-.41
beginning April 1, 2016, except as provided in part 2 of this subparagraph.
1. The Department may extend the 24-hour time
limit on a case-by-case basis if the system cannot collect the ground water
source sample within 24 hours due to circumstances beyond its control. In the
case of an extension, the Department must specify how much time the system has
to collect the sample.
2. If
approved by the Department, systems with more than one groundwater source may
meet the requirements of this subparagraph by sampling representative
groundwater source or sources. If directed by the Department, systems must
submit for Department approval a triggered source water monitoring plan that
identifies one or more groundwater sources that are representative of each
monitoring site in the system's sample siting plan under paragraph (1) of Rule
0400-45-01-.07
until March 31, 2016 or under paragraph (3) of Rule
0400-45-01-.41
beginning April 1, 2016, and that the system intends to use for representative
sampling under this paragraph.
3.
Until March 31, 2016, a ground water system serving 1,000 people or fewer may
use a repeat sample collected from a ground water source to meet both the
requirements of paragraph (2) of Rule
0400-45-01-.07
and to satisfy the monitoring requirements of this subparagraph for that ground
water source only if the Department approves the use of E. coli as a fecal
indicator for source water monitoring under this paragraph. If the repeat
sample collected from the ground water source is E. coli positive, the system
must comply with subparagraph (c) of this paragraph. Beginning April 1, 2016,
the use of ground water source sample as a repeat sample shall no longer be
allowed to meet the requirements of paragraph (2) of Rule
0400-45-01-.07.
(c) If the Department does not
require corrective action under part 2 of subparagraph (a) of paragraph (4) of
this rule for fecal-indicator positive source water sample collected under
subparagraph (b) of this paragraph that is not invalidated under subparagraph
(h) of paragraph (3) this rule, the system must collect five additional source
water samples from the same source within 24 hours of being notified of the
fecal indicator-positive sample.
(d) Consecutive and Wholesale Systems
1. In addition to the other requirements of
this paragraph, a consecutive ground water system that has a total
coliform-positive sample collected under paragraph (1) of Rule
0400-45-01-.07
until March 31, 2016, or under Rule
0400-45-01-.41(4)
through
0400-45-01-.41(7)
beginning April 1, 2016, must notify the
wholesale system(s) within 24 hours of being notified of the total
coliform-positive sample.
2. In
addition to the other requirements of this paragraph, a wholesale ground water
system must comply with subparts (i) and (ii) of this part.
(i) A wholesale ground water system that
receives notice from a consecutive system it serves that a sample collected
under paragraph (1) of Rule 0400-45-01 -07, until March 31, 2016, or under Rule
0400-45-01-.41(4)
through
0400-45-01-.41(7)
beginning April 1, 2016, is total coliform-positive must, within 24 hours of
being notified, collect a sample from its ground water source(s) under
subparagraph (b) of this paragraph and analyze it for a fecal indicator under
subparagraph (g) of this paragraph.
(ii) If the sample collected under subpart
(3)(d)2(i) of this rule is fecal indicator-positive, the wholesale ground water
system must notify all consecutive systems served by that ground water source
of the fecal indicator source water positive within 24 hours of being notified
of the ground water source sample monitoring result and must meet the
requirements of subparagraph (c) of this paragraph.
(e) Exceptions to the Triggered
Source Water Monitoring Requirements.
A ground water system is not required to comply with the source water monitoring requirements of this paragraph if either of the following conditions exists:
1. The Department determines, and documents
in writing, that the total coliform-positive sample collected under paragraph
(1) of Rule
0400-45-01-.07,
until March 31, 2016, or under Rule
0400-45-01-.41(4)
through
0400-45-01-.41(7)
beginning April 1, 2016, is caused by a
distribution system deficiency; or
2. The total coliform-positive sample
collected under paragraph (1) of Rule
0400-45-01-.07,
until March 31, 2016, or under Rule
0400-45-01-.41(4)
through
0400-45-01-.41(7)
beginning April 1, 2016, is collected at a location that meets Department
criteria for distribution system conditions that will cause total
coliform-positive samples and the system requests in writing that the
Department make the determination as to whether the total coliform-positive
sample was due to distribution system conditions that will cause total
coliform-positive samples.
(f) Assessment Source Water Monitoring. If
directed by the Department, ground water systems must conduct assessment source
water monitoring that meets Department-determined requirements for such
monitoring. A ground water system conducting assessment source water monitoring
may use a triggered source water sample collected under subparagraph (b) of
this paragraph to meet the requirements of subparagraph (f) of this paragraph.
Department-determined assessment source water monitoring requirements may
include:
1. Collection of a total of 12 ground
water source samples that represent each month the system provides ground water
to the public,
2. Collection of
samples from each well unless the system obtains written Department approval to
conduct monitoring at one or more wells within the ground water system that are
representative of multiple wells used by that system and that draw water from
the same hydrogeologic setting,
3.
Collection of standard sample volume of at least 100 ml for fecal indicator
analysis regardless of fecal indicator or analytical method used,
4. Analysis of all ground water source
samples using one of the analytical methods listed in part (10)(a)6. of Rule
0400-45-01-.14
for the presence of E. coli or enterococci,
5. Collection of ground water samples at a
location prior to any treatment of the ground water source unless the
Department approves a sampling location after treatment, and
6. Collection of ground water source samples
at the well itself unless the system's configuration does not allow for
sampling at the well itself and the Department approves an alternate sampling
location that is representative of the water quality of that well.
(g) Analytical and Sampling
methods.
1. A ground water system subject to
the source water monitoring requirements of this paragraph must collect a
standard sample volume of at least 100 mL for fecal indicator analysis
regardless of the fecal indicator or analytical method used.
2. The analytical method to be used is
prescribed in part (10)(a)6. of Rule
0400-45-01-.14.
(h) Invalidation of fecal
indicator-positive ground water source sample. A ground water system may obtain
Department invalidation of a fecal indicator-positive ground water source
sample collected under this paragraph only under the conditions specified in
parts 1. and 2. of this subparagraph.
1. The
system provides the Department with written notice from the laboratory that
improper sample analysis has occurred; or
2. The Department determines and documents in
writing that there is substantial evidence that a fecal-indicator positive
ground water source sample is not related to source water quality.
(i) If the Department invalidates
a fecal indicator-positive ground water sample, the ground water system must
collect another source water sample under this paragraph within 24 hours of
being notified by the Department of its invalidation decision and have it
analyzed for the same fecal indicator using the analytical methods in part
(10)(a)6. of Rule
0400-45-01-.14.
The Department may extend the 24-hour time limit on a case-by-case basis if the
system cannot collect the source water sample within 24 hours due to
circumstances beyond its control. In the case of an extension, the Department
must specify how much time the system has to collect the sample.
(j) Sampling location. Any ground water
source sample required under this paragraph must be collected at a location
prior to any treatment of the ground water source unless the Department
approves a sampling location after treatment.
1. If the system's configuration does not
allow sampling at the well itself, the system may collect a sample at a
Department-approved location to meet the requirements of this paragraph if the
sample is representative of the water quality of that well.
(k) New Sources. If directed by
the Department, a ground water system that places a new ground water source
into service after November 30, 2009, must conduct assessment source water
monitoring under subparagraph (f) of this paragraph. If directed by the
Department, the system must begin monitoring before the ground water source is
used to provide water to the public.
(l) Public Notification. A ground water
system with a ground water source sample collected under this paragraph that is
fecal indicator-positive and that is not invalidated under subparagraph (h) of
this paragraph, including consecutive systems served by the ground water
source, must conduct public notification under paragraph (2) of Rule
0400-45-01-.19.
(m) Monitoring Violations. Failure to meet
the requirements of subparagraphs (a) through (k) of this paragraph is a
monitoring violation and requires the ground water system to provide public
notification under paragraph (4) of Rule
0400-45-01-.19.
(4) Treatment Technique Requirements for Ground Water Systems
(a)
Ground water systems with significant deficiencies or source water fecal
contamination.
1. The treatment technique
requirements of this rule must be met by ground water systems when a
significant deficiency is identified or when a ground water source sample
collected under subparagraph (3)(c) of this rule is fecal-indicator
positive.
2. If directed by the
Department, a ground water system with a ground water source sample collected
under subparagraph (3)(b), (d), or (f) of this rule that is fecal
indicator-positive must comply with the treatment technique requirements of
this rule.
3. When a significant
deficiency is identified at a Subpart H public water system that uses both
ground water and surface water or ground water under the direct influence of
surface water, the system must comply with provisions of this rule except in
cases where the Department determines that the significant deficiency is in a
portion of the distribution system that is served solely by surface water or
ground water under the direct influence of surface water.
4. Unless the Department directs the ground
water system to implement a specific corrective action, the ground water system
must consult with the Department regarding the appropriate corrective action
within 30 days of receiving written notice from the Department of a significant
deficiency, written notice from a laboratory that a ground water source sample
collected under subparagraph (3)(c) of this rule was found to be fecal
indicator-positive, or direction from the Department that a fecal indicator
positive collected under subparagraph (3)(b), (d) or (f) of this rule requires
corrective action. For purposes of this rule, significant deficiencies include,
but are not limited to, defects in design, operation or maintenance, or a
failure or malfunction of the sources, treatment, storage, or distribution
system that the Department determines to be causing, or have the potential of
causing, the introduction of contamination into the water delivered to
consumers.
5. Within 120 days (or
earlier if directed by the Department) of receiving written notification from
the Department of a significant deficiency, written notice from a laboratory
that a ground water source sample collected under subparagraph (3)(c) of this
rule was found to be fecal indicator-positive, or direction from the Department
that a fecal indicator-positive sample collected under subparagraph (3)(b), (d)
or (f) of this rule requires corrective action, the ground water system must
either:
(i) Have completed corrective action
in accordance with applicable Department plan review processes or other
Department guidance or direction, if any, including Department-specified
interim measures, or
(ii) Be in
compliance with a Department-approved corrective action plan and schedule
subject to conditions in items (I) and (II) of this subpart.
(I) Any subsequent modifications to a
Department-approved corrective action plan and schedule must also be approved
by the Department.
(II) If the
Department specifies interim measures for protection of the public health
pending Department approval of the corrective action plan and schedule or
pending completion of the corrective action plan, the system must comply with
these interim measures as well as with any schedule specified by the
Department.
6. Corrective Action Alternatives. Ground
water systems that meet the conditions of part 1. or 2. of this subparagraph
must implement one or more of the following corrective action alternatives:
(i) Correct all significant
deficiencies;
(ii) Provide an
alternate source of water;
(iii)
Eliminate the source of contamination; or
(iv) Provide treatment that reliably achieves
at least 4-log treatment of viruses (using inactivation, removal, or a
Department-approved combination of 4-log virus inactivation and removal) before
or at the first customer for the ground water source.
7. Special notice to the public of
significant deficiencies or source water fecal contamination.
(i) In addition to the applicable public
notification requirements of Rule
0400-45-01-.19,
a community ground water system that receives notice from the Department of a
significant deficiency or notification of a fecal indicator-positive ground
water source sample that is not invalidated by the Department under
subparagraph (3)(h) of this rule must inform the public served by the water
system under subparagraph (4)(g) of Rule
0400-45-01-.35
of the fecal indicator-positive source sample or of any significant deficiency
that has not been corrected. The system must continue to inform the public
annually until the significant deficiency is corrected or the fecal
contamination in the ground water source is determined by the Department to be
corrected under part 5. of this subparagraph.
(ii) In addition to the applicable public
notification requirements of Rule
0400-45-01-.19,
a non-community ground water system that receives notice from the Department of
a significant deficiency must inform the public served by the water system in a
manner approved by the Department of any significant deficiency that has not
been corrected within 12 months of being notified by the Department, or earlier
if directed by the Department. The system must continue to inform the public
annually until the significant deficiency is corrected. The information must
include:
(I) The nature of the significant
deficiency and the date the significant deficiency was identified by the
Department;
(II) The
Department-approved plan and schedule for correction of the significant
deficiency, including interim measures, progress to date, and any interim
measures completed; and
(III) For
systems with a large proportion of non-English speaking consumers, as
determined by the Department, information in the appropriate language(s)
regarding the importance of the notice or a telephone number or address where
consumers may contact the system to obtain a translated copy of the notice or
assistance in the appropriate language.
(iii) If directed by the Department, a
non-community water system with significant deficiencies that have been
corrected must inform its customers of the significant deficiencies, how the
deficiencies were corrected, and the dates of the correction under subpart (ii)
of this part.
(b) Compliance Monitoring
1. Existing ground water sources. A ground
water system that is not required to meet the source water monitoring
requirements of this rule for any ground water source because it provides at
least 4-log treatment of viruses (using inactivation, removal, or a Department
approved combination of 4-log virus inactivation and removal) before or at the
first customer for any ground water source before December 1, 2009, must notify
the Department in writing that it provides at least 4-log treatment of viruses
(using inactivation, removal, or a Department approved combination of 4-log
virus inactivation and removal) before or at the first customer for the
specified ground water source and begin compliance monitoring in accordance
with subparagraph (c) of this paragraph by December 1, 2009.
Notification to the Department must include engineering, operational, or other information that the Department requests to evaluate the submission.
2. New ground water sources. A ground water
system that places a ground water source in service after November 30, 2009,
that is not required to meet the source water monitoring requirements of this
rule for any ground water source because it provides at least 4-log treatment
of viruses (using inactivation, removal, or a Department approved combination
of 4-log virus inactivation and removal) before or at the first customer for
the ground water source must comply with the requirements of subparts (i) and
(ii) of this part.
(i) The system must notify
the Department in writing that it provides at least 4-log treatment of viruses
(using inactivation, removal, or a Department approved combination of 4-log
virus inactivation and removal) before or at the first customer for the ground
water source. Notification to the Department must include engineering,
operational, or other information that the Department requests to evaluate the
submission.
(ii) The system must
conduct compliance monitoring as required under subparagraph (c) of this
paragraph within 30 days of placing the source into service.
(c) Monitoring
Requirements
1. A ground water system subject
to the requirements of subparagraph (a), part (b)1. or part (b)2. of this
paragraph must monitor the effectiveness and reliability of the treatment for
that ground water source before or at the first customer as follows:
(i) A ground water system that serves greater
than 3,300 people must continuously monitor the residual disinfectant
concentration using analytical methods specified in subparagraph (10)(i) of
Rule
0400-45-01-.14
at a location approved by the Department and must record the lowest residual
disinfectant concentration each day that water from the ground water source is
served to the public. The ground water system must maintain the
Department-determined residual disinfectant concentration every day the ground
water system serves water from the ground water source to the public. If there
is a failure in the continuous monitoring equipment, the ground water system
must conduct grab sampling every four hours until the continuous monitoring
equipment is returned to service. The system must resume continuous residual
disinfectant monitoring within 14 days.
(ii) A ground water system that serves 3,300
or fewer people must monitor the residual disinfectant concentration using
analytical methods specified in subparagraph (10)(i) of Rule
0400-45-01-.14
at a location approved by the Department and record the residual disinfection
each day that water from the ground water source is served to the public. The
ground water system must maintain the Department-determined residual
disinfectant concentration every day the ground water system serves water from
the ground water source to the public. The ground water system must take a
daily grab sample during the hour of peak flow or at another time specified by
the Department. If any daily grab sample measurement falls below the
Department-determined residual disinfectant concentration, the ground water
system must take follow-up samples every four hours until the residual
disinfectant concentration is restored to the Department-determined level.
Alternatively, a ground water system that serves 3,300 or fewer people may
monitor continuously and meet the requirements of subpart (i) of this
part.
(iii) Membrane filtration. A
ground water system that uses membrane filtration to meet the requirements of
this rule must monitor the membrane filtration process in accordance with all
Department-specified monitoring requirements and must operate the membrane
filtration in accordance with all Department-specified compliance requirements.
A ground water system that uses membrane filtration is in compliance with the
requirement to achieve at least 4-log removal of viruses when:
(I) The membrane has an absolute molecular
weight cutoff (MWCO), or alternate parameter that describes the exclusion
characteristics of the membrane, that can reliably achieve at least 4-log
removal of viruses;
(II) The
membrane process is operated in accordance with Department-specified compliance
requirements; and
(III) The
integrity of the membrane is intact.
(iv) Alternative treatment. A ground water
system that uses a Department-approved alternative treatment to meet the
requirements of this rule by providing at least 4-log treatment of viruses
(using inactivation, removal, or a Department-approved combination of 4-log
virus inactivation and removal) before or at the first customer must:
(I) Monitor the alternative treatment in
accordance with all Department-specified monitoring requirements; and
(II) Operate the alternative treatment in
accordance with all compliance requirements that the Department determines to
be necessary to achieve at least 4-log treatment of viruses.
(d) Failure
to meet the monitoring requirements of subparagraphs (b) and (c) of this
paragraph is a monitoring violation and requires the ground water system to
provide public notification under paragraph (4) of Rule
0400-45-01-.19.
(5) Treatment Technique Violations for Ground Water Systems.
(a) A ground water
system with a significant deficiency is in violation of the treatment technique
requirement if, within 120 days (or earlier if directed by the Department) of
receiving written notice from the Department of a significant deficiency, the
system:
1. Does not complete corrective
action in accordance with any applicable Department plan review processes or
other Department guidance and direction, including Department specified interim
actions and measures, or
2. Is not
in compliance with a Department-approved corrective action plan and
schedule.
(b) Unless the
Department invalidates a fecal indicator-positive ground water source sample
under subparagraph (3)(h) of this rule, a ground water system is in violation
of the treatment technique requirement if, within 120 days (or earlier if
directed by the Department) of meeting the conditions of part (4)(a)1. or 2. of
this rule, the system:
1. Does not complete
corrective action in accordance with any applicable Department plan review
processes or other Department guidance and direction, including
Department-specified interim measures, or
2. Is not in compliance with a
Department-approved corrective action plan and schedule.
(c) A ground water system subject to the
requirements of subparagraph (4)(c) of this rule that fails to maintain at
least 4-log treatment of viruses (using inactivation, removal, or a Department
approved combination of 4-log virus inactivation and removal) before or at the
first customer for a ground water source is in violation of the treatment
technique requirement if the failure is not corrected within four hours of
determining the system is not maintaining at least 4-log treatment of viruses
before or at the first customer.
(d) The ground water system must give public
notification under paragraph (3) of Rule
0400-45-01-.19
for the treatment technique violations specified in subparagraphs (a), (b) and
(c) of this paragraph.
(6) Reporting and Recordkeeping for Ground Water Systems
(a) In addition to the
requirements of Rule
0400-45-01-.18,
a ground water system regulated under this rule must provide the following
information to the Department:
1. A ground
water system conducting compliance monitoring under subparagraphs (4)(b) and
(c) of this rule must notify the Department any time the system fails to meet
any Department-specified requirements including, but not limited to, minimum
residual disinfectant concentration, membrane operating criteria or integrity,
and alternative treatment operating criteria, if operation in accordance with
the criteria or requirements is not restored within four 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 subparagraph (4)(a) of this rule, a ground water system must notify the
Department within 30 days of completion of the corrective action.
3. If a ground water system subject to the
requirements of subparagraph (a) of paragraph (3) of this rule does not conduct
source water monitoring under part 2. of subparagraph (e) of paragraph (3) of
this rule, the system must provide documentation to the Department within 30
days of the total coliform positive sample that it met the Department criteria
and request in writing that the Department make the determination.
(b) Recordkeeping. In addition to
the requirements of Rule
0400-45-01-.20,
a ground water system regulated under this rule must maintain the following
information in its records:
1. Documentation
of corrective actions. Documentation shall be kept for a period of not less
than ten years.
2. Documentation of
notice to the public as required under part (4)(a)7. of this rule.
Documentation shall be kept for a period of not less than three
years.
3. Records of decisions
under part (3)(e)2. of this rule and records of invalidation of fecal
indicator-positive ground water source samples under subparagraph (3)(h) of
this rule. Documentation shall be kept for a period of not less than five
years.
4. For consecutive systems,
documentation of notification to the wholesale system(s) of total-coliform
positive samples that are not invalidated under paragraph (3) of Rule
0400-45-01-.07
until March 31, 2016, or under Rule
0400-45-01-.41(3)
beginning April 1, 2016. Documentation shall be kept for a period of not less
than five years.
5. For systems,
including wholesale systems, that are required to perform compliance monitoring
under subparagraphs (4)(b) and (c) of this rule:
(i) Records of Department-specified minimum
disinfectant residual. Documentation shall be kept for a period of not less
than ten years.
(ii) Records of the
lowest daily residual disinfectant concentration and records of the date and
duration of any failure to maintain the Department-prescribed minimum residual
disinfectant concentration for a period of more than four hours. Documentation
shall be kept for a period of not less than five years.
(iii) Records of Department-specified
compliance requirements for membrane filtration and of parameters specified by
the Department for Department-approved alternative treatment and records of the
date and duration of any failure to meet the membrane operating, membrane
integrity, or alternative treatment operating requirements for more than four
hours. Documentation shall be kept for a period of not less than five
years.
Authority: T.C.A. §§ 4-5-201, et seq. and 68-221-701, et seq.
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