Current through all regulations passed and filed through September 16, 2024
(A) Except as otherwise noted, the
definitions in rule
3745-81-01
of the Administrative Code shall apply to this chapter. For the purposes of this rule, "week" means a seven day
period beginning on Sunday and ending on the following
Saturday.
(B) Except as
otherwise noted, analyses required by this rule shall be conducted in
accordance with methods as specified in rule
3745-81-27
of the Administrative Code. In addition, analysis for parameters listed in the
table in this paragraph shall be conducted in a laboratory certified in
accordance with Chapter 3745-89 of the Administrative Code:
|
Parameter |
Application |
|
Total alkalinity |
Precipitative softening or membrane technology; daily
monitoring. |
|
Phenol alkalinity |
Precipitative softening; daily monitoring. |
|
Stability |
Precipitative softening or membrane technology; weekly
monitoring. |
|
Copper |
All. |
|
Fluoride |
All. |
|
Iron |
For split sample or weekly analysis. |
|
Manganese |
For split sample or weekly analysis. |
|
pH |
Precipitative softening or membrane technology; daily
monitoring. Surface water treatment plant; daily monitoring. |
|
Total hardness |
Precipitative softening or membrane technology; daily
monitoring. |
|
Total phosphorus |
All. |
(C)
Disinfection.
(1) Except as prescribed in rule
3745-81-72
of the Administrative Code, noncommunity public water systems serving a
population of at least one thousand people and all community public water
systems shall maintain a minimum chlorine residual of at least two-tenths
milligram per liter (0.2 mg/L) free chlorine, or
one milligram per liter combined chlorine measured at representative points
throughout the distribution system. All other noncommunity public water systems
that provide water treated with chlorine for disinfection purposes shall
maintain the chlorine residual levels as described in this rule. The director
may require higher residuals as necessary to compensate for pH, temperature, or
other characteristics of the delivered water.
[Comment: Rule
3745-81-72
of the Administrative Code establishes similar but separate requirements for
disinfection of systems using a surface water source. These two requirements
are not inconsistent and failure to comply with either is considered a separate
violation with different consequences. Contact your district office
representative if you have questions or require clarification.]
(2) Noncommunity public water
systems serving a population of at least one thousand people and all community
public water systems shall install and place in operation equipment capable of
meeting disinfection requirements of this rule.
(3) A system is exempt from maintaining a
chlorine residual as required in paragraph (C)(1) of this rule if, with written
approval of the director, it uses chlorine dioxide as a primary disinfectant in
accordance with the terms of the approval.
[Comment: Plan approval requirements
for a system treating with chlorine dioxide will include minimum chlorine
dioxide residual requirements for the system and any consecutive
systems.]
(4) At
times of actual or threatened outbreak of waterborne disease as defined in rule
3745-81-01
of the Administrative Code, or water supply emergency as determined by the
director in accordance with section
6109.05
of the Revised Code, the director may require a public water system subject to
paragraph (C) (1) of this rule to maintain a minimum chlorine residual of at
least one milligram per liter free chlorine, or six milligrams per liter
combined chlorine measured at representative points throughout the distribution
system, despite possible resulting tastes or odors in the delivered
water.
(5)
Finished water storage facilities serving noncommunity water systems serving a
population of at least one thousand people and all community water systems,
prior to being placed into service or being returned to service after repairs,
inspections, painting, cleaning, or other activities that might lead to
contamination, shall complete the following:
(a) Meet the requirements of "American Water
Works Association Standard C652-02 Disinfection of Water-Storage Facilities"
(2019).
(b) Be monitored for chlorine residual and
comply with the minimum chlorine residual established in paragraph (C)(1) of
this rule and the MRDL established in paragraph (C) of rule
3745-81-10
of the Administrative Code.
(6) Water mains serving noncommunity water
systems serving a population of at least one thousand people and all community
water systems, prior to being placed into service or being returned to service
after repairs, inspections, or other activities that might lead to
contamination, unless a minimum pressure of twenty pounds per square inch gauge
at ground level is maintained at all points in the distribution system, shall
complete the following:
(a) Meet the
requirements of "American Water Works Association Standard C651-14 Disinfecting
Water Mains" (2014).
(b) Be
monitored for chlorine residual and comply with the minimum chlorine residual
established in paragraph (C)(1) of this rule and the MRDL established in
paragraph (C) of rule
3745-81-10
of the Administrative Code.
(D) Approval of chemicals and components. All
chemicals, substances, and materials added to or brought in contact with water
in or intended to be used in a public water system or used for the purpose of
treating, conditioning, altering, or modifying the characteristics of such
water shall be shown by either the manufacturer, distributor, or purveyor to be
non-toxic and harmless to humans when used in accordance with the formulation
and concentration as specified by the manufacturer, and shall be certified as
meeting the "American National Standards Institute/National Sanitation
Foundation/Standards Council of Canada
(ANSI/NSF/CAN)" standards in paragraphs (D)(1) to
(D)(3) of this rule. Certification shall be from an "ANSI" accredited product
certification organization.
(1) All chemicals
shall be certified as meeting the specification of "ANSI/NSF/ CAN Standard 60 Drinking Water Treatment Chemicals -
Health Effects (2020)."
(2) All components installed by a public
water system shall be certified as meeting the specifications of "ANSI/NSF/CAN Standard 61 Drinking Water System Components -
Health Effects (2020)."
If certification to "ANSI/NSF/ CAN Standard 61"
is not available for a component, an alternate component with "ANSI/NSF/CAN Standard 61" certification must be used. In cases
where no alternate "ANSI/NSF/CAN Standard 61"
component exists, the director may accept another component on a case by case
basis until the "ANSI/NSF/CAN Standard 61"
certified component is available.
(3) Replacement of an existing component that
is not certified to "ANSI/NSF/ CAN Standard 61
Drinking Water System Components - Health Effects (2020)" may be
required if the director determines the component may pose a risk to human
health, safety or the environment.
(E) Minimum pressure.
All
water systems shall maintain a minimum pressure of twenty pounds per square
inch gauge at ground level at all points in the distribution system under all
conditions of flow other than conditions caused by line breaks, extreme fire
flows, or other extraordinary circumstances.
[Comment: Required responses to
conditions caused by line breaks, extreme fire flows, or other extraordinary
circumstances are found in rule
3745-83-02
of the Administrative Code.]
(F) Operational analyses.
(1) Alkalinity.
(a) Total alkalinity.
(i) A public water system that provides
precipitative softening as defined in rule
3745-7-01
of the Administrative Code or membrane technology to reduce hardness shall
monitor for total alkalinity daily at each entry point to the distribution
system.
(ii) A public water system
that adjusts the alkalinity of the water for optimization of corrosion control
pursuant to the lead and copper requirements in rules
3745-81-82
and
3745-81-87
of the Administrative Code shall monitor for total alkalinity at least once
every two weeks at regular intervals at each entry point to the distribution
system.
[Comment: In addition to the monitoring requirements above,
public water systems exceeding the lead and copper action level that adjust the
alkalinity of the water for the purpose of providing optimal corrosion control
treatment pursuant to rules
3745-81-82
and
3745-81-87
of the Administrative Code shall also monitor in accordance with the
requirements of those rules.]
(b) Phenolphthalein (or phenol) alkalinity. A
public water system that provides precipitative softening as defined in rule
3745-7-01
of the Administrative Code shall monitor for phenolphthalein alkalinity daily
at each entry point to the distribution system.
(c) Stability. A public water system that
provides precipitative softening as defined in rule
3745-7-01
of the Administrative Code or membrane technology to reduce hardness shall
monitor for stability at least weekly at each entry point to the distribution
system.
(2) Chlorine
residual.
(a) A public water system that
provides water treated with chlorine shall monitor for free or combined
chlorine at least once every day that water is available to the public at each
entry point to the distribution system and a representative point or points in
the distribution system unless otherwise specified by
the director.
(i)
A daily entry
point sample is not required for a noncommunity ground water system that
consists of a single building or any consecutive system receiving finished
water that is not treated further by the consecutive water system unless
otherwise specified by the director.
(ii)
If the director
determines a water system's distribution sampling location or locations do not
result in representative distribution samples, the water system shall select
additional or different locations that result in representative distribution
samples.
(b) A
public water system that uses chlorine solely for the oxidation of iron,
manganese or hydrogen sulfide and is not required to maintain a residual in the
distribution system does not have to perform the monitoring in paragraph
(F)(2)(a) of this rule.
[Comment: In addition to the requirements in this paragraph, a
public water system that uses a surface source, in whole or in part, shall also
conduct disinfection monitoring in accordance with rule
3745-81-74
of the Administrative Code. A public water system that uses a ground water
source and provides 4-log inactivation of viruses shall also conduct
disinfection monitoring in accordance with rule
3745-81-43
of the Administrative Code.]
(3) Copper. A public water system that
intends to apply a copper compound to the water supply source shall notify the
director of their intent to apply the compound, and monitor for copper at least
weekly, at each entry point to the distribution system for at least one month
after the compound has been applied.
(4) Fluoride.
(a) A public water system that adds fluoride
to the water supply shall monitor for fluoride in accordance with the
following:
(i) At least once every day that
water is available to the public at each entry point to the distribution
system.
(ii) Prior to fluoridation
at least once per month.
(b) Samples shall be analyzed as soon as
possible, but in no case later than forty-eight hours after the time of
collection.
(5) Iron.
A community public water system that provides treatment to
reduce iron shall monitor for iron at least at each entry point to the
distribution system.
(a) Community
systems serving up to and including two hundred fifty persons shall monitor
either of the following:
(i) Weekly with an
in-house test kit in accordance with paragraph (F)(5) (c) of this rule and one
split sample monthly by a state certified laboratory.
(ii) Weekly by a state certified
laboratory.
(b)
Community systems serving greater than two hundred fifty persons shall monitor
either of the following:
(i) A minimum of five
days per week with an in-house test kit in accordance with paragraph (F)(5)(c)
of this rule and one split sample monthly by a state certified
laboratory.
(ii) Weekly by a state
certified laboratory.
(c) An iron test kit shall have a minimum
detection level of 0.2 milligrams per liter. Furthermore, the deviation of the
split sample shall not be greater than 0.2 milligrams per liter. If the
deviation is greater, then the public water system shall cease monitoring with
the test kit and substitute with weekly monitoring at a state certified
laboratory. A public water system may resume monitoring with their test kit
once the deviation of a split sample is no greater than 0.2 milligrams per
liter. The director may accept an alternate collection frequency and deviation
from in-house test kits for split sampling requirements.
(6) Manganese.
All community and nontransient
noncommunity public water systems
that add
manganese as part of the treatment process or
provide
treatment for manganese, shall
monitor for manganese at least at each entry point to the distribution system
at the frequency in paragraphs (F)(6)(a) and (F)(6)(b)
of this rule. Public water systems that add manganese as part of the treatment
process but do not provide treatment for manganese are only required to comply
with this paragraph when manganese is added.
(a)
Community systems serving up to and including two hundred and fifty persons
and all nontransient noncommunity systems shall
monitor either of the following:
(i) Weekly
with an in-house test kit in accordance with paragraph (F) (6)(c) of this rule
and one split sample monthly by a certified laboratory.
(ii) Weekly by a state certified
laboratory.
(b)
Community systems serving greater than two hundred fifty persons shall monitor
either of the following:
(i) A minimum of five
days per week with an in-house test kit in accordance with paragraph (F)(6)(c)
of this rule and one split sample monthly by a certified laboratory.
(ii) Weekly by a state certified
laboratory.
(c) A
manganese test kit shall have a minimum detection level of 0.02 milligrams per
liter. Furthermore, the deviation of the split sample shall be no greater than
0.04 milligrams per liter. If it is greater, then the public water system shall
cease monitoring with the test kit and substitute with weekly monitoring at a
state certified laboratory. A public water system may resume monitoring with
their test kit once a deviation of the split sample is no greater than 0.04
milligrams per liter. The director may accept an alternate collection frequency
and deviation from in-house test kits for split sampling
requirements.
(7)
Orthophosphate.
A public water system that adds
orthophosphate to the water for the purpose of providing corrosion control
treatment for purposes other than compliance with the lead and copper rules
shall monitor for orthophosphate at least monthly at each entry point to the
distribution system.
[Comment: Additional monitoring
requirements for public water systems that add orthophosphate to the water for
the purpose of providing optimal corrosion control treatment can be found in
rules
3745-81-82
and
3745-81-87
of the Administrative Code.]
(8) pH.
A public water system that adjusts the
pH of the water supply for stabilization or that employs precipitative
softening as defined in rule
3745-7-01
of the Administrative Code or membrane technology to reduce hardness shall
monitor for pH at least once every day that water is available to the public at
each entry point to the distribution system.
[Comment: Additional monitoring requirements
for water systems that adjust the pH of water can be
found in rules
3745-81-43,
3745-81-74,
3745- 81-82 and
3745-81-87
of the Administrative Code.
(9) Total hardness.
(a) A community public water system serving
up to and including two hundred fifty persons that provides
cation
exchange treatment to reduce hardness shall monitor for total hardness at least
monthly at each entry point to the distribution system.
(b) A community public water system serving
greater than two hundred fifty persons that provide ion exchange treatment to
reduce hardness shall monitor for total hardness at least weekly at each entry
point to the distribution system.
(c) A public water system that provides
precipitative softening treatment as defined in rule
3745-7-01
of the Administrative Code or that provides membrane technology to reduce
hardness shall monitor for total hardness at least daily at each entry point to
the distribution system.
(10) Total phosphorus. A public water system
that adds phosphate to the water supply , shall monitor for total phosphorus at
least monthly at each entry point to the distribution system.
(G) The director may require
additional monitoring as needed to assess operational performance than is
otherwise specified in this rule, including but not limited to operational
monitoring required to assess the effectiveness of treatment for contaminants
regulated in Chapter 3745-81 of the Administrative Code. The director shall
notify the public water system of additional monitoring required under this
paragraph in writing or via plan approval issued in accordance with Chapter
3745-91 of the Administrative Code.
(H) Maintenance of facilities and equipment.
(1) The owner and operator shall ensure that
all facilities and equipment necessary for the treatment and distribution of
water shall be maintained, at a minimum so as to function as
intended.
(2) In the event that the
treatment facilities or equipment no longer function as intended, corrective
action (which may include additional maintenance or modifications of the public
water system) shall be taken by the owner.
(3) The owner and operator shall document the
completion of the above referenced maintenance in accordance with Chapter
3745-7 of the Administrative Code.
(I) Reports.
(1) In addition to any other reporting
requirement of Chapter 3745-81 of the Administrative Code, the owner or
operator of a public water system required to monitor under paragraphs (F) and
(G) of this rule shall prepare and submit an operation report for each month of
operation on forms acceptable to the director and in accordance with
instructions provided by the director. The director may require that the report
include the following:
(a) General operation
data, including but not limited to, identification of the operating source at a
given time, number of hours of operation, filter run times, backwash duration,
filter backwash recycle percentages, head loss, membrane pressure drop, cartridge filter pressure drop,
permeate and concentrate flow, interruptions in treatment, equipment
inspection/ maintenance dates, minimum system pressure, pre and intermediate
tap sampling results, and deviations from normal day-to-day
operations.
(b) A summary of
samples analyzed, including distribution system sampling and chlorine residual
sampling.
(c) Information on daily
water treatment and system pumpage.
(d) Information on chemical application,
including but not limited to, chemical feed pump ranges, chemical dosages,
chemical feed rates, pre, intermediate or post treatment application changes in
chemical type, location, and dosage due to emergencies, and seasonal
variations.
(e) Analysis of general
parameters relating to the quality of the treated drinking water.
(f) Source water levels, including but not
limited to, low and high levels in flowing in streams, lakes and reservoirs,
static and drawdown levels in production and monitoring wells under any
conditions including flooding and drought periods.
(g) Such other information as may be
necessary or desirable for the director to carry out the director's duties
under Chapter 6109. of the Revised Code.
(2) The operation report shall be signed by
the operator of record designated in accordance with rule
3745-7-02
of the Administrative Code. If an operator of record is not required by rule
3745-7-02
of the Administrative Code, the operation report shall be signed by an
individual designated by the public water system owner.
(3) The operation report shall be submitted
electronically via a method acceptable to the director no later than the tenth
of the month following the month for which the report was prepared.
(4) The owner or operator shall report to the
appropriate Ohio environmental protection agency district office as soon as
possible, but within twenty-four hours, the discovery of any serious plant or
distribution system breakdown or condition causing or likely to cause any of
the following:
(a) Any discharge of water not
in accordance with Chapter 6109. of the Revised Code or the rules adopted
thereunder.
(b) Any major
interruption in service or disinfection.
(c) Any hazard for employees, consumers, the
public or the environment.
(5) Records of operation reports for each
month of operation shall be kept for not less than ten years, except for lead
and copper data which shall be kept for not less than twelve years.
[Comment: This rule incorporates the "American Water Works"
standards C651-14 and C652-19 by reference. Copies may be obtained from the
"AWWA Bookstore, 6666 West Quincy Avenue, Denver, Co, 80235, 1-800-926-7337,
www.awwa.org." These standards are
available for review at "Ohio EPA, Lazarus Government Center, 50 W. Town
Street, Suite 700, Columbus, OH, 43215."]
[Comment: This rule incorporates the ANSI/NSF/CAN standards 60 and 61 by reference. Copies may be
obtained from "NSF International, 789 Dixboro Road, P.O. Box 130140, Ann Arbor,
MI, 48113-0140, (734) 769-8010, www.nsf.org." These standards are available
for review at "Ohio EPA, Lazarus Government Center, 50 W. Town Street, Suite
700, Columbus, OH, 43215."]
