Hawaii Administrative Rules
Title 11 - DEPARTMENT OF HEALTH
Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS
Chapter 20 - RULES RELATING TO PUBLIC WATER SYSTEMS
Section 11-20-50 - Ground Water Rule
Universal Citation: HI Admin Rules 11-20-50
Current through February, 2024
(a) General requirements and applicability.
(1) Scope of
this section. The requirements of this section constitute National Primary
Drinking Water Regulations.
(2)
Applicability. This section 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 section
11-20-46.
For the purposes of this section, "ground water system" is defined as any
public water system meeting this applicability statement, including consecutive
systems receiving finished ground water.
(3)
General requirements. Systems subject to this section must comply
with the following requirements:
(A) Sanitary
survey information requirements for all ground water systems as described in
subsection (b).
(B) 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 state-approved combination of 4-log
virus inactivation and removal) before or at the first customer as described in
subsection (c).
(C) Treatment
technique requirements, described in subsection (d), that apply to ground water
systems that have fecally contaminated source waters, as determined by source
water monitoring conducted under subsection (c), or that have significant
deficiencies that are identified by the State or that are identified by EPA
under SDWA section 1445. A ground water system with fecally contaminated source
water or with significant deficiencies subject to the treatment technique
requirements of this section must implement one or more of the following
corrective action options: correct all significant deficiencies; provide an
alternative source of water; eliminate the source of contamination; or provide
treatment that reliably achieves at least 4-log treatment of viruses (using
inactivation, removal, or a state-approved combination of 4-log virus
inactivation and removal) before or at the first customer.
(D) Ground water systems that provide at
least 4-log treatment of viruses (using inactivation, removal, or a
State-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 subsection
(d)(2).
(E) If requested by the
State, ground water systems must provide the State with any existing
information that will enable the State to perform a hydrogeologic sensitivity
assessment. For the purposes of this section, "hydrogeologic sensitivity
assessment" is a determination of whether ground water systems obtain water
from hydrogeologically sensitive settings.
(4) Compliance date. Ground water systems
must comply, unless otherwise noted, with the requirements of this section
beginning December 1, 2009.
(b) Sanitary surveys for ground water systems.
(1) Ground water systems must provide the
State, at the State's request, any existing information that will enable the
State to conduct a sanitary survey.
(2)
For the purposes of this section, a 'sanitary survey," as
conducted by the State, 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.
(3)
The sanitary survey must include an evaluation of the following
applicable components:
(A) Source,
(B) Treatment,
(C) Distribution system,
(D) Finished water storage,
(E) Pumps, pump facilities, and
controls,
(F) Monitoring,
reporting, and data verification,
(G)
System management and operation, and
(H) Operator compliance with chapter
11-25.
(c) Ground water source microbial monitoring and analytical methods.
(1) Triggered source
water monitoring.
(A) General requirements. A
ground water system must conduct triggered source water monitoring if the
following conditions are identified and exist:
(i) The system does not provide at least
4-log treatment of viruses (using inactivation, removal, or a state-approved
combination of inactivation and removal) before or at the first customer for
each ground water source; and
(ii)
The system is notified that a sample collected under section
11-20-9.1(d)
is total coliform-positive and the sample is not invalidated under section
11-20-9.1(c)(3)
beginning April 1, 2016.
(B) Sampling requirements. 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 section
11-20-9.1(d)
beginning April 1, 2016, except as provided in clause (ii).
(i) The State may extend the 24-hour time
limit on a case-by-case basis if the system cannot collect the ground water
source water sample within 24 hours due to circumstances beyond its control. In
the case of an extension, the State must specify how much time the system has
to collect the sample.
(ii) If
approved by the State, systems with more than one ground water source may meet
the requirements of this subparagraph by sampling a representative ground water
source or sources. If directed by the State, systems must submit for State
approval a triggered source water monitoring plan that identifies one or more
ground water sources that are representative of each monitoring site in the
system's sample siting plan under section
11-20-9.1(c)
beginning April 1, 2016, and that the system intends to use for representative
sampling under this paragraph.
(iii) Beginning April 1, 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 section
11-20-9.1
and to satisfy the monitoring requirements of this subparagraph for that ground
water source. If the repeat sample collected from the ground water source is
E. coli positive, the system must comply with paragraph
(1)(C).
(C) Additional
requirements. If the State does not require corrective action under subsection
(d)(1)(B) for an E. coli-positive source water sample
collected under subparagraph (B) that is not invalidated under paragraph (4),
the system must collect five additional source water samples from the same
source within 24 hours of being notified of the E.
coli-positive sample.
(D)
Consecutive and Wholesale Systems.
(i) In
addition to the other requirements of this paragraph, a consecutive ground
water system that has a total coliform-positive sample collected under section
11-20-9.1(d)
beginning April 1, 2016, must notify the wholesale system(s) within 24 hours of
being notified of the total coliform-positive sample.
(ii) In addition to the other requirements of
this paragraph, a wholesale ground water system that receives notice from a
consecutive system it serves that a sample collected under section
11-20-9.1(d)
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) and analyze it for E. coli under paragraph
(3). If the collected source water sample is E. coli-positive,
the wholesale ground water system must notify all consecutive systems served by
that ground water source of the E. coli source water positive
within 24 hours of being notified of the ground water source sampling
monitoring result and must meet the requirements of subparagraph (C).
(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 paragraph
(1) if either of the following conditions exists:
(i) The State determines, and documents in
writing, that the total coliform-positive sample collected under section
11-20-9.1(d)
beginning April 1, 2016, is caused by a distribution system deficiency; or
(ii) The total coliform-positive
sample collected under section
11-20-9.1(d)
beginning April 1, 2016, is collected at a location that meets State criteria
for distribution system conditions that will cause total coliform-positive
samples.
(2)
Assessment Source Water Monitoring. If directed by the State, ground water
systems must conduct assessment source water monitoring that meets
state-determined requirements for such monitoring. A ground water system
conducting assessment source water monitoring may use a triggered source water
sample collected under paragraph (1)(B) to meet the requirements of this
paragraph. State-determined assessment source water monitoring requirements may
include:
(A) Collection of a total of 12
ground water source samples that represent each month the system provides
ground water to the public,
(B)
Collection of samples from each well unless the system obtains written state
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,
(C) Collection of a standard sample volume of
at least 100 mL for E. coli analysis regardless of the
analytical method used,
(D)
Analysis of all ground water source samples using one of the analytical methods
listed in paragraph (3)(B) for the presence of E.
coli,
(E) Collection of
ground water source samples at a location prior to any treatment of the ground
water source unless the State approves a sampling location after treatment,
and
(F) 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 State approves an alternative
sampling location that is representative of the water quality of that
well.
(3) Analytical
methods.
(A) A ground water system subject to
the source water monitoring requirements of paragraph (1) must collect a
standard sample volume of at least 100 mL for E. coli analysis
regardless of the analytical method used.
(B) A ground water system must analyze all
ground water source samples collected under paragraph (1) using one of the
analytical methods listed in the following table for the presence of E.
coli or one of the alternative methods listed in Appendix A to Subpart
C, 40 C.F.R. Part 141:
|
Analytical Methods for Source Water Monitoring |
||
|
Fecal indicator1 |
Methodology |
Method citation |
|
E. coli |
Colilert3 |
9223 B.2 |
|
Colisure3 |
9223 B.2 |
|
|
Membrane Filter Method with MI Agar |
EPA Method 1604.4 |
|
|
m-ColiBlue24 Test5 |
||
|
E*Colite Test6 |
||
|
EC-MUG7 |
||
|
NA-MUG7 |
9221 F.2 |
|
|
9221 G.2 |
||
Analyses must be conducted in accordance with the documents listed below. The Director of the Federal Register approves the incorporation by reference of the documents listed in footnotes 2-7 in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of the documents may be obtained from the sources listed below. Copies may be inspected at EPA's Drinking Water Docket, EPA West, 1301 Constitution Avenue, NW., EPA West, Room B102, Washington DC 20460 (Telephone: 202-566-2426); or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
1 The time from sample collection to initiation of analysis may not exceed 30 hours. The ground water system is encouraged but is not required to hold samples below 10°C during transit.
2 Methods are described in Standard Methods for the Examination of Water and Wastewater 20th edition (1998) and copies may be obtained from the American Public Health Association, 1015 Fifteenth Street, NW., Washington, DC 20005-2605.
3 Medium is available through IDEXX Laboratories, Inc., One IDEXX Drive, Westbrook, Maine 04092.
4 EPA Method 1604: Total Coliforms and Escherichia coli in Water by Membrane Filtration Using a Simultaneous Detection Technique (MI Medium); September 2002, EPA 821-R-02-024. Method is available at http://www.epa.gov/nerlcwww/1604sp02.pdf or from EPA's Water Resource Center (RC-4100T), 1200 Pennsylvania Avenue, NW., Washington, DC 20460.
5 A description of the m-ColiBlue24 Test, "Total Coliforms and E. coli Membrane Filtration Method with m-ColiBlue24® Broth," Method No. 10029 Revision 2, August 17, 1999, is available from Hach Company, 100 Dayton Ave., Ames, IA 50010 or from EPA's Water Resource Center (RC-4100T), 1200 Pennsylvania Avenue, NW., Washington, DC 20460.
6 A description of the E*Colite Test, "Charm E*Colite Presence/Absence Test for Detection and Identification of Coliform Bacteria and Escherichia coli in Drinking Water, January 9, 1998, is available from Charm Sciences, Inc., 659 Andover St., Lawrence, MA 01843-1032 or from EPA's Water Resource Center (RC-4100T), 1200 Pennsylvania Avenue, NW., Washington, DC 20460.
7 EC-MUG (Method 9221F) or NA-MUG (Method 9222G) can be used for E. coli testing step as described in section 11-20-9(h)(6)(A) or section 11-20-9(h)(6)(B) after use of Standard Methods 9221 B, 9221 D, 9222 B or 9222 C.
(4) Invalidation of an
E. coli-positive ground water source sample.
(A) A ground water system may obtain State
invalidation of an E. coli-positive ground water source sample
collected under paragraph (1) only under the following conditions:
(i) The system provides the State with
written notice from the laboratory that improper sample analysis occurred;
or
(ii) The State determines and
documents in writing that there is substantial evidence that an E.
coli-positive ground water source sample is not related to source
water quality.
(B) If
the State invalidates an E. coli-positive ground water source
sample, the ground water system must collect another source water sample under
paragraph (1) within 24 hours of being notified by the State of its
invalidation decision and have it analyzed for the E. coli
using the analytical methods in paragraph (3). The State 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 State must specify how much time the system has to
collect the sample.
(5)
Sampling location.
(A) Any
ground water source sample required under paragraph (1) must be collected at a
location prior to any treatment of the ground water source unless the State
approves a sampling location after treatment.
(B) If the system's configuration does not
allow for sampling at the well itself, the system may collect a sample at a
state-approved location to meet the requirements of paragraph (1) if the sample
is representative of the water quality of that well.
(6) New Sources. If directed by the State, a
ground water system that places a new ground water source into service after
November 30, 2009, must conduct assessment source water monitoring under
paragraph (2). If directed by the State, the system must begin monitoring
before the ground water source is used to provide water to the
public.
(7) Public Notification. A
ground water system with a ground water source sample collected under paragraph
(1) or paragraph (2) that is E. coli-positive and that is not
invalidated under paragraph (4), including consecutive systems served by the
ground water source, must conduct public notification under section
11-20-18(b).
(8) Monitoring Violations. Failure to meet
the requirements of paragraphs (1) through (6) is a monitoring violation and
requires the ground water system to provide public notification under section
11-20-18(d).
(d) Treatment technique requirements for ground water systems.
(1) Ground water
systems with significant deficiencies or source water fecal contamination.
(A) The treatment technique requirements of
this section must be met by ground water systems when a significant deficiency
is identified or when a ground water source sample collected under subsection
(c)(1)(C) is E. coli-positive.
(B) If directed by the State, a ground water
system with a ground water source sample collected under subsections (c)(1)(B),
(c)(1)(D), or (c)(2) that is E. coli-positive must comply with
the treatment technique requirements of this section.
(C) When a significant deficiency is
identified at a system regulated under section
11-20-46
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
subsection except in cases where the State 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.
(D) Unless the State directs
the ground water system to implement a specific corrective action, the ground
water system must consult with the State regarding the appropriate corrective
action within 30 days of receiving written notice from the State of a
significant deficiency, written notice from a laboratory that a ground water
source sample collected under subsection (c)(1)(C) was found to be E.
coli-positive, or direction from the State that an E.
coli-positive sample collected under subsections (c)(1)(B), (c)(1)(D),
or (c)(2) requires corrective action. For the purposes of this section,
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 State determines to be
causing, or have potential for causing, the introduction of contamination into
the water delivered to consumers.
(E) Within 120 days (or earlier if directed
by the State) of receiving written notification from the State of a significant
deficiency, written notice from a laboratory that a ground water source sample
collected under subsection (c)(1)(C) was found to be E.
coli-positive, or direction from the State that an E.
coli-positive sample collected under subsections (c)(1)(B), (c)(1)(D),
or (c)(2) requires corrective action, the ground water system must either:
(i) Have completed corrective action in
accordance with applicable State plan review processes or other State guidance
or direction, if any, including state-specified interim measures; or
(ii) Be in compliance with a state-approved
corrective action plan and schedule subject to the following conditions: Any
subsequent modifications to a state-approved corrective action plan and
schedule must also be approved by the State; and if the State specifies interim
measures for protection of the public health pending State approval of the
corrective action plan and schedule or pending completion of the correction
action plan, the system must comply with these interim measures as well as with
any schedule specified by the State.
(F) Corrective Action Alternatives. Ground
water systems that meet the conditions of subparagraphs (A) or (B) 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 state-approved combination of
4-log virus inactivation and removal) before or at the first customer for the
ground water source.
(G)
Special notice to the public of significant deficiencies or
source water fecal contamination.
(i) In
addition to the applicable public notification requirements of section
11-20-18(b),
a community ground water system that receives notice from the State of a
significant deficiency or notification of an E. coli-positive
ground water source sample that is not invalidated by the State under
subsection (c)(4) must inform the public served by the water system under
section
11-20-48.5
of the E. coli-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 State to be
corrected under subparagraph (E).
(ii) In addition to the applicable public
notification requirements of section
11-20-18(b),
a non-community ground water system that receives notice from the State of a
significant deficiency must inform the public served by the water system in a
manner approved by the State of any significant deficiency that has not been
corrected within 12 months of being notified by the State, or earlier if
directed by the State. The system must continue to inform the public annually
until the significant deficiency is corrected. The information must include:
The nature of the significant deficiency and the date the significant
deficiency was identified by the State; the state-approved plan and schedule
for correction of the significant deficiency, including interim measures,
progress to date, and any interim measures completed; and for systems with a
large proportion of non-English speaking consumers, as determined by the State,
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
State, 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 correction under clause (ii).
(2)
Compliance monitoring.
(A) Existing ground
water sources. A ground water system that is not required to meet the source
water monitoring requirements of this subpart for any ground water source
because it provides at least 4-log treatment of viruses (using inactivation,
removal, or a state-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 State in writing that it provides at least
4-log treatment of viruses (using inactivation, removal, or a state-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) by December 1, 2009. Notification to the
State must include engineering, operational, or other information that the
State requests to evaluate the submission. If the system subsequently
discontinues 4-log treatment of viruses (using inactivation, removal, or a
state- approved combination of 4-log virus inactivation and removal) before or
at the first customer for a ground water source, the system must conduct ground
water source monitoring as required under subsection (c).
(B) 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
subpart because the system provides at least 4-log treatment of viruses (using
inactivation, removal, or a state-approved combination of 4-log virus
inactivation and removal) before or at the first customer for the ground water
source must comply with the following requirements:
(i)
The system must notify the State in writing that it provides at
least 4-log treatment of viruses (using inactivation, removal, or a
state-approved combination of 4-log virus inactivation and removal) before or
at the first customer for the ground water source. Notification to the State
must include engineering, operational, or other information that the State
requests to evaluate the submission.
(ii)
The system must conduct compliance monitoring as required under
subparagraph (C) within 30 days of placing the source in service.
(iii) The system must conduct ground water
source monitoring under subsection (c) if the system subsequently discontinues
4-log treatment of viruses (using inactivation, removal, or a state-approved
combination of 4-log virus inactivation and removal) before or at the first
customer for the ground water source.
(C) Monitoring requirements. A ground water
system subject to the requirements of paragraph (1), subparagraphs (A) or (B)
must monitor the effectiveness and reliability of treatment for that ground
water source before or at the first customer as follows:
(i) Chemical disinfection. Ground
water systems serving greater than 3,300 people. A ground water system
that serves greater than 3,300 people must continuously monitor the residual
disinfectant concentration using analytical methods specified in section
11-20-46(d)(1)(B)
at a location approved by the State 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
state-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. Ground water systems serving
3,300 or fewer people. A ground water system that serves 3,300 or
fewer people must monitor the residual disinfectant concentration using
analytical methods specified in section
11-20-46(d)(1)(B)
at a location approved by the State and record the residual disinfection
concentration each day that water from the ground water source is served to the
public. The ground water system must maintain the state-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 State. If any daily grab sample measurement falls below the
state-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 state-determined level. Alternatively, a
ground water system that serves 3,300 or fewer people may monitor continuously
and meet the requirements of ground water systems serving greater than 3,300
people of this clause.
(ii)
Membrane filtration. A ground water system that uses membrane filtration to
meet the requirements of this section must monitor the membrane filtration
process in accordance with all state-specified monitoring requirements and must
operate the membrane filtration in accordance with all state-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: The membrane has an absolute molecular weight cut-off (MWCO), or an
alternate parameter that describes the exclusion characteristics of the
membrane, that can reliably achieve at least 4-log removal of viruses; the
membrane process is operated in accordance with state-specified compliance
requirements; and the integrity of the membrane is intact.
(iii) Alternative treatment. A ground water
system that uses a State-approved alternative treatment to meet the
requirements of this subpart by providing at least 4-log treatment of viruses
(using inactivation, removal, or a state-approved combination of 4-log virus
inactivation and removal) before or at the first customer must: Monitor the
alternative treatment in accordance with all state-specified monitoring
requirements; and operate the alternative treatment in accordance with all
compliance requirements that the State determines to be necessary to achieve at
least 4-log treatment of viruses.
(3) Discontinuing treatment. A ground water
system may discontinue 4-log treatment of viruses (using inactivation, removal,
or a State-approved combination of 4-log virus inactivation and removal) before
or at the first customer for a ground water source if the State determines and
documents in writing that 4-log treatment of viruses is no longer necessary for
that ground water source. A system that discontinues 4-log treatment of viruses
is subject to the source water monitoring and analytical methods requirements
of subsection (c).
(4) Failure to
meet the monitoring requirements of subsection (d)(2) is a monitoring violation
and requires the ground water system to provide public notification under
section
11-20-18(d).
(e) Treatment technique violations for ground water systems.
(1) 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 State) of
receiving written notice from the State of the significant deficiency, the
system:
(A) Does not complete corrective
action in accordance with any applicable state plan review processes or other
state guidance and direction, including state-specified interim actions and
measures, or
(B) Is not in
compliance with a state-approved corrective action plan and schedule.
(2) Unless the State invalidates
an E. coli-positive ground water source sample under
subsection (c)(4), a ground water system is in violation of the treatment
technique requirement if, within 120 days (or earlier if directed by the State)
of meeting the conditions of subsections (d)(1)(A) or (d)(1)(B), the system:
(A) Does not complete corrective action in
accordance with any applicable state plan review processes or other state
guidance and direction, including state-specified interim measures,
or
(B) Is not in compliance with a
State-approved corrective action plan and schedule.
(3) A ground water system subject to the
requirements of subsection (d)(2)(C) that fails to maintain at least 4-log
treatment of viruses (using inactivation, removal, or a state-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.
(4) A ground
water system must give public notification under section
11-20-18(c)
for the treatment technique violations specified in paragraphs (1), (2) and
(3).
(f) Reporting and recordkeeping for ground water systems.
(1)
Reporting. In addition to the requirements of section
11-20-17,
a ground water system regulated under this section must provide the following
information to the State:
(A) A ground water
system conducting compliance monitoring under subsection (d)(2) must notify the
State any time the system fails to meet any state-specified 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 hours. The ground water system must
notify the State as soon as possible, but in no case later than the end of the
next business day.
(B) After
completing any corrective action under subsection (d)(1), a ground water system
must notify the State within 30 days of completion of the corrective
action.
(C) If a ground water
system subject to the requirements of subsection (c)(1) does not conduct source
water monitoring under subsection (c)(1)(E)(ii), the system must provide
documentation to the State within 30 days of the total coliform positive sample
that it met the State criteria.
(2) Recordkeeping. In addition to the
requirements of section
11-20-19,
a ground water system regulated under this subpart must maintain the following
information in its records:
(A) Documentation
of corrective actions. Documentation shall be kept for a period of not less
than ten years.
(B) Documentation
of notice to the public as required under subsection (d)(1)(G). Documentation
shall be kept for a period of not less than three years.
(C) Records of decisions under subsection
(c)(1)(E)(ii) and records of invalidation of E.coli-positive
ground water samples under subsection (c)(4). Documentation shall be kept for a
period of not less than five years.
(D) For consecutive systems, documentation of
notification to the wholesale system(s) of total-coliform positive samples that
are not invalidated under section
11-20-9.1(c)
beginning April 1, 2016. Documentation shall be kept for a period of not less
than five years.
(E) For systems,
including wholesale systems, that are required to perform compliance monitoring
under subsection (d)(2):
(i) Records of the
state-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 state-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 state-specified compliance requirements for membrane filtration and
of parameters specified by the State for state-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.
Disclaimer: These regulations may not be the most recent version. Hawaii may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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