reglab/statecodes huggingface dataset:
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-32 - Public notification

Current through all regulations passed and filed through July 1, 2024
(A)
			 General requirements for public notification by public water systems.
(1) The owner or operator of a public water
			 system shall provide public notice to persons served by that public water
			 system in accordance with this rule. Public water systems that sell or
			 otherwise provide drinking water to other public water systems (i.e., to
			 consecutive systems) are required to give 
									public
			 notice in accordance with this rule to the owner or operator of the consecutive
			 system; the consecutive system is responsible for providing public notice in
			 accordance with this rule to the persons it serves.
(2) If a community public water system has a
			 violation in a portion of the distribution system that is physically or
			 hydraulically isolated from other parts of the distribution system as described
			 in the emergency contingency plan required by Chapter 3745-85 of the
			 Administrative Code, the director may allow the system to limit distribution of
			 the public notice to only persons served by that portion of the system which is
			 out of compliance. Permission for limited distribution
			 
									may be
			 granted in writing by the director.
(3) The public water system, within ten days
			 of completing the public notification requirements under this rule for the
			 initial public notice and any repeat notices, shall submit to the director a
			 completed verification form indicating that the system has fully complied with
			 the public notification regulations. The public water system shall include with
			 this certification 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.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-33 - Record maintenance

Current through all regulations passed and filed through July 1, 2024
Any owner or operator of a public water system subject to the
				provisions of this chapter shall retain on the premises or at
				a convenient location near the premises the following records:
(A) Records of microbiological and turbidity
			 analyses made pursuant to this chapter shall be kept for not less than five
			 years unless otherwise specified. Records of chemical analyses made pursuant to
			 this chapter shall be kept for not less than ten years. Actual laboratory
			 reports may be kept, or data may be transferred to tabular summaries, provided
			 that the following information is included:
(1) The date, place, and time of sampling,
			 and the name of the person who collected the sample.
(2) Identification of the sample as to
			 whether it was a routine confirmation sample, check sample,
			 raw or process water sample or other special purpose sample.
(3) Date of analysis.
(4) Laboratory and person responsible for
			 performing analysis.
(5) The
			 analytical technique/method used.
(6) The results of the analysis.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-41 - Ground water rule - general requirements and applicability

Current through all regulations passed and filed through July 1, 2024
Applicability. This rule applies to all public water systems
				that use ground water except those 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
				3745-81-71 of the Administrative
				Code. For the purpose of rules
				3745-81-41 to
				3745-81-45 of the Administrative
				Code, "ground water system" is defined as any public water system meeting this
				applicability statement, including consecutive systems receiving finished
				ground water.
(A) Systems subject to
			 this rule shall comply with the following:
(1)
			 Inspection and response requirements for all ground water systems as described
			 in rule 3745-81-60 of the Administrative
			 Code.
(2) Microbial source water
			 monitoring requirements for ground water systems that do not treat all of their
			 ground water to at least
			 99.99 per cent (4-log) treatment
			 of viruses (using inactivation, removal, or a director-approved combination of
			 4-log virus inactivation and removal) before or at the first customer as
			 described in rule
			 3745-81-42 of the Administrative
			 Code.
(3) Treatment technique
			 requirements, described in rule
			 3745-81-61 of the Administrative
			 Code, that apply to ground water systems that have 
									E.coli
			 contaminated source waters as determined by source water monitoring conducted
			 under rule
			 3745-81-42 of the Administrative
			 Code, or that have significant deficiencies that are identified by the director
			 through the sanitary survey process, or through a level one or level two
			 assessment conducted in accordance with rule
			 3745-81-53 of the Administrative
			 Code. A ground water system with 
									E. coli contaminated source water or with
			 significant deficiencies subject to the treatment technique requirements of
			 this rule shall implement one or more of the following corrective action
			 options: correct all significant deficiencies; provide an alternate 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 director-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
			 director-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 rule
			 3745-81-43 of the Administrative
			 Code.
(5) If requested by the
			 director, ground water systems shall provide any existing information that will
			 enable the director to perform a hydrogeologic sensitivity
			 assessment.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-42 - Ground water rule - ground water source microbial monitoring and analytical methods

Current through all regulations passed and filed through July 1, 2024
(A) Triggered source water monitoring.
(1) A ground water system shall conduct
			 triggered source water monitoring if the conditions identified in
			 
									paragraphs (A)(1)(a) and  (A)(1)(b)
			  of this rule exist.
(a) The system does not provide at least
			 4-log treatment of viruses (using inactivation, removal, or a director-approved
			 combination of 4-log virus inactivation and removal) before or at the first
			 customer for each ground water source.
(b)
										
										The system is notified that a sample collected
			 under rule
			 3745-81-51 of the Administrative
			 Code is total coliformpositive and the sample is not invalidated in accordance
			 with paragraph 
										(D) of rule
			 3745-81-50 of the Administrative
			 Code.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-43 - Ground water rule - compliance monitoring requirements for ground water systems

Current through all regulations passed and filed through July 1, 2024
(A) Compliance monitoring.
(1) A ground water system that is not
			 required to meet the source water monitoring requirements of rule
			 3745-81-42 of the Administrative
			 Code because the system provides at least 4-log treatment of viruses (using
			 inactivation, removal, or a director-approved combination of 4-log virus
			 inactivation and removal) before or at the first customer for the ground water
			 source shall comply with the following requirements:
(a) The system shall notify the director in
			 writing that it provides at least 4-log treatment of viruses (using
			 inactivation, removal, or a director-approved combination of 4-log virus
			 inactivation and removal) before or at the first customer for the ground water
			 source. Notification to the director shall include engineering, operational, or
			 other information that the director requests to evaluate the submission. The
			 notification may also require a complete plan approval application in
			 accordance with Chapter 3745-91 of the Administrative Code.
(b) The system shall obtain acceptance or
			 approval from the director for 4-log treatment of viruses.
(c) The system shall conduct compliance
			 monitoring as required in paragraph (A)(2) of this rule within thirty days of
			 placing the source in service or receiving director approval for 4-log
			 treatment of viruses.
(d) The
			 system shall conduct ground water source monitoring in accordance with rule
			 3745-81-42 of the Administrative
			 Code if the system subsequently discontinues 4-log treatment of viruses (using
			 inactivation, removal, or a director-approved combination of 4-log virus
			 inactivation and removal) before or at the first customer for the ground water
			 source.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-44 - Ground water rule - treatment technique violations for ground water systems

Current through all regulations passed and filed through July 1, 2024
(A) A ground water
			 system with a significant deficiency is in violation of the treatment technique
			 requirement if the system does not comply with the corrective action
			 requirements and schedule established under rule
			 3745-81-61 of the Administrative
			 Code.
(B) Unless the director
			 invalidates 
								an E. coli positive ground water source sample in
			 accordance with paragraph (D) of rule
			 3745-81-42 of the Administrative
			 Code, a ground water system is in violation of the treatment technique
			 requirement if the system does not comply with the corrective action
			 requirements and schedule established under rule
			 3745-81-61 of the Administrative
			 Code.
(C) A ground water system
			 subject to paragraph (A)(2) of rule
			 3745-81-43 of the Administrative
			 Code that fails to maintain at least 4-log treatment of viruses (using
			 inactivation, removal, or a director-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) A ground water system must give public
			 notification in accordance with paragraph (C)(1)(a) of rule
			 3745-81-32 of the Administrative
			 Code for the treatment technique violations specified in paragraphs (A) to (C)
			 of this rule.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-45 - Ground water rule - reporting and recordkeeping for ground water systems

Current through all regulations passed and filed through July 1, 2024
(A) Reporting. In
			 addition to the requirements in rule
			 3745-81-31 of the Administrative
			 Code, a ground water system regulated under rules
			 3745-81-41 to
			 3745-81-45 and rule
			 3745-81-60 or
			 3745-81-61 of the Administrative
			 Code shall provide the following information to the director:
(1) A ground water system conducting
			 compliance monitoring in paragraph (A) of rule
			 3745-81-43 of the Administrative
			 Code shall report monthly to the director the information specified in rule
			 3745-83-01 of the Administrative
			 Code. These ground water systems shall also notify the director any time the
			 system fails to meet any director-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 shall notify the director as soon as
			 possible, but in no case later than the end of the next business day.
(2) After completing any corrective action
			 under rule
			 3745-81-61 of the Administrative
			 Code, a ground water system shall notify the director within thirty days of
			 completion of the corrective action.
(3) If a ground water system subject to
			 paragraph (A) of rule
			 3745-81-42 of the Administrative
			 Code does not conduct source water monitoring in accordance with paragraph
			 (A)(5)(b) of rule
			 3745-81-42 of the Administrative
			 Code, the system shall provide documentation within thirty days of the total
			 coliform positive sample that the system met appropriate criteria as acceptable
			 to the director.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-51 - Revised total coliform rule - routine monitoring requirements

Current through all regulations passed and filed through July 1, 2024
(A)
								All
			 public water systems shall conduct routine total coliform monitoring in
			 accordance with this rule
(1) Following any total
			 coliform-positive sample collected in accordance with paragraph (B), (C), (D)
			 or (E) of this rule, public water systems shall comply with the repeat
			 monitoring requirements and Escherichia coli (E. coli) analytical requirements
			 in rule
			 3745-81-52
			 of the Administrative Code.
(2)
			 Once all monitoring required by paragraph (B), (C), (D) or (E) of this rule and
			 rule
			 3745-81-52
			 of the Administrative Code for a calendar month has been completed, public
			 water systems shall determine whether any coliform treatment technique triggers
			 have been exceeded in accordance with rule
			 3745-81-53
			 of the Administrative Code. If any triggers have been exceeded, public water
			 systems shall complete the assessments as required in rule
			 3745-81-53
			 of the Administrative Code.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-52 - Revised total coliform rule - repeat monitoring and E. coli requirements

Current through all regulations passed and filed through July 1, 2024
(A) Repeat
			 monitoring.
(1) When a sample collected in
			 accordance with rule
			 3745-81-51
			 of the Administrative Code is total coliform-positive, the public water system
			 shall monitor with a set of three repeat samples within twenty-four hours of
			 being notified of the positive result. The system must collect no fewer than
			 three repeat samples for each total coliform-positive sample.
(a) The director shall not waive the
			 requirement for a system to collect repeat samples in accordance with
			 paragraphs (A)(1) to (A)(3) of this rule.
(b) The twenty-four hour time limit to
			 collect repeat samples may be extended up to an additional seventy-two hours
			 when one or more of the following conditions beyond the control of the public
			 water system prevent it from complying:
(i)
			 The certified laboratory that performs sample collection for the system is not
			 available on a weekend or holiday.
(ii) Collection of samples within twenty-four
			 hours would result in the holding time being exceeded before analysis is
			 started due to limited delivery service or a laboratory not being
			 open.
(iii) Sample bottles could
			 not be obtained due to certified 
											laboratories being closed on a weekend or
			 holiday.
(iv) Extreme weather
			 conditions create unsafe travel or on-site conditions for the person collecting
			 the samples.
(c) A public
			 water system using the time extension provisions of this paragraph shall record
			 the reasons for the delay in collecting repeat samples on the sample submission
			 form.
(d) Upon a request from a
			 public water system, the director may extend the twenty-four-hour limit on a
			 case-by-case basis when the public water system has a logistical problem
			 collecting the repeat samples within twenty-four hours other than those
			 specified in this paragraph or when one or more of the conditions in paragaph
			 (A)(1)(b) of this rule create an unavoidable delay longer than an additional
			 seventy-two hours. When an extension is granted by the director, the director
			 shall specify how much time the public water system has to monitor with repeat
			 samples.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-53 - Revised total coliform rule - coliform treatment technique triggers and assessment requirements

Current through all regulations passed and filed through July 1, 2024
(A)
								Public water
			 systems shall conduct assessments in accordance with paragraph (B) of this rule
			 after exceeding any of the following treatment technique triggers:
(1)
									Level one
			 treatment technique triggers.
(a)
										For a public water system which monitors with at least
			 forty samples per month, the number of total coliform-positive samples exceeds
			 5.0 per cent of the total number of samples during a month.
(b)
										For a public
			 water system which monitors with fewer than forty samples per month, the system
			 has two or more total coliform-positive samples during the same
			 month.
(c)
										The public water system fails to monitor with all
			 required repeat samples following a total coliform-positive
			 sample.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-54 - Revised total coliform rule - violations

Current through all regulations passed and filed through July 1, 2024
(A)
								Maximum
			 contaminant level (MCL) for Escherichia coli (E. coli). A public water system
			 in violation of the MCL for E. coli as a result of any of the following
			 conditions shall notify the public using tier 1 notification requirements in
			 accordance with rule
			 3745-81-32 of
			 the Administrative Code:
(1)
									A public water system that has an E. coli-positive
			 repeat sample following a total coliform-positive routine sample is in
			 violation of the MCL for E. coli.
(2)
									A public water
			 system that has a total coliform-positive repeat sample following an E.
			 coli-positive routine sample is in violation of the MCL for E.
			 coli.
(3)
									A system that fails to collect all required repeat
			 samples following an E. coli-positive routine sample is in violation of the MCL
			 for E. coli.
(4)
									A system that fails to test for E. coli when any repeat
			 sample is total coliform-positive is in violation of the MCL for E.
			 coli.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-55 - Revised total coliform rule - reporting and recordkeeping

Current through all regulations passed and filed through July 1, 2024
(A) Reporting.
(1) Escherichia coli (E. coli).
(a) A public water system shall notify the
			 director by the end of the day when the system learns of an E. coli maximum
			 contaminant level violation, unless the system learns of the violation after
			 the director's office is closed, in which case the system shall notify the
			 director before the end of the next business day and notify the public in
			 accordance with rule
			 3745-81-32 of
			 the Administrative Code.
(b) A
			 public water system shall notify the director 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 director's office is closed, in which case the
			 system shall notify the director before the end of the next business
			 day.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-60 - Inspections and response requirements

Current through all regulations passed and filed through July 1, 2024
(A) Community water systems must undergo a
			 sanitary survey at least every three years. Noncommunity water systems must
			 undergo a sanitary survey at least every five years. The director shall review
			 the results of each sanitary survey to determine whether the existing
			 monitoring frequency is adequate and what additional measures, if any, the
			 public water system needs to undertake to improve drinking water
			 quality.
(B) In conducting a
			 sanitary survey at a public water system using ground water and having a
			 
								drinking
			 water source protection 
								plan endorsed
								 by the director, information on sources of
			 contamination within the delineated 
								drinking water
			 source protection area that was collected in the course of developing and
			 implementing the 
								plan should be considered instead of collecting
			 new information, if the information was collected since the last time the
			 public water system was subject to a sanitary survey.
(C) Public water systems are responsible for
			 ensuring that the required sanitary surveys are performed. If requested, public
			 water systems shall provide any existing information that will enable a
			 sanitary survey to be conducted. Sanitary surveys shall be performed in
			 accordance with procedures endorsed
								 by the director and will include,
			 but not be limited to an evaluation of public water system components including
			 the source; treatment; distribution system; finished water storage; pump, pump
			 facilities, and controls; monitoring, reporting, and data verification; system
			 management and operation; and operator compliance.
(D) A public water system shall respond to
			 the director in writing, within thirty days following receipt of a sanitary
			 survey letter, limited scope site visit report or any other inquiry from the
			 director, unless a different response time frame is noted. The response shall
			 indicate how and on what schedule the public water system will address any
			 significant deficiencies and violations noted in the correspondence.
(E) A public water system shall correct
			 significant deficiencies specified in the sanitary survey report, through
			 source water monitoring or a system assessment and according to the schedule
			 accepted by the director as described in rule
			 3745-81-61 of the Administrative
			 Code. A public water system shall also correct violations specified in the
			 sanitary survey or limited scope site visit report according to the schedule
			 accepted by the director. Failure to correct significant deficiencies in
			 accordance with the schedule accepted by the director is a treatment technique
			 violation.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-61 - Treatment technique requirements for significant deficiencies

Current through all regulations passed and filed through July 1, 2024
A significant deficiency, as defined in rule
				3745-81-01 of the Administrative
				Code, may be identified any time a qualifying condition exists at a public
				water system. The primary means for identifying significant deficiencies are a
				sanitary survey conducted in accordance with rule
				3745-81-60 of the Administrative
				Code, source water monitoring conducted in accordance with rule
				3745-81-42 of the Administrative
				Code and a level one or level two assessment conducted in accordance with rule
				3745-81-53 of the Administrative
				Code. A public water system shall respond to a significant deficiency as
				required by this rule to ensure it is corrected in a timely manner and the
				public is appropriately notified. The director may require specific corrective
				action to correct an identified significant deficiency. The requirements of
				this rule are treatment technique requirements.
(A) Whenever feasible, a public water system
			 shall correct a significant deficiency within thirty days of becoming aware of
			 or being notified of the deficiency. Notification may occur through, but is not
			 limited to, the following methods:
(1)
			 Notification to a system using a ground water source in accordance with rule
			 3745-81-42 of the Administrative
			 Code, including notification by a certified laboratory of
			 
									E. coli
			 contamination in a ground water source sample.
(2) Notification in accordance with rule
			 3745-81-60 or
			 3745-81-64 of the Administrative
			 Code for significant deficiencies identified during a sanitary survey or
			 limited scope site visit.
(3)
			 Identification by the public water system as a result of conducting a level one
			 assessment in accordance with rule
			 3745-81-53 of the Administrative
			 Code, or notification of significant deficiencies identified during a level one
			 or level two assessment conducted in accordance with rule
			 3745-81-53 of the Administrative
			 Code.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-67 - LT2 bin classification and treatment technique requirements

Current through all regulations passed and filed through July 1, 2024
(A) Following
			 completion of the initial round of source water monitoring required by
			 paragraph (A) of rule
			 3745-81-65
			 of the Administrative Code, systems shall calculate an initial Cryptosporidium
			 bin concentration for each plant for which monitoring was required. Calculation
			 of the bin concentration shall use the Cryptosporidium results reported under
			 paragraph (A) of rule
			 3745-81-65
			 of the Administrative Code and shall use the following procedures:
(1) For systems that collect a total of at
			 least forty-eight samples, the bin concentration is equal to the arithmetic
			 mean of all sample concentrations.
(2) For systems that collect a total of at
			 least twenty-four samples, but not more than 
									forty-seven
			 samples, the bin concentration is equal to the highest arithmetic mean of all
			 sample concentrations in any twelve consecutive months during which
			 Cryptosporidium samples were collected.
(3) For systems that serve less than ten
			 thousand people and monitor for Cryptosporidium for only one year (i.e.,
			 collect twenty-four samples in twelve months), the bin concentration is equal
			 to the arithmetic mean of all sample concentrations.
(4) For systems with plants operating only
			 part of the year that monitor less than twelve months per year in accordance
			 with paragraph (E) of rule
			 3745-81-65
			 of the Administrative Code, the bin concentration is equal to the highest
			 arithmetic mean of all sample concentrations during any year of Cryptosporidium
			 monitoring.
(5) If the monthly
			 Cryptosporidium sampling frequency varies, systems shall first calculate a
			 monthly average for each month of monitoring. Systems shall then use these
			 monthly average concentrations, rather than individual sample concentrations,
			 in the applicable calculation for bin classification in paragraphs (A)(1) to
			 (A)(4) of this rule.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-69 - Reporting and Recordkeeping Requirements for LT2 only

Current through all regulations passed and filed through July 1, 2024
(A)
								 Reporting requirements.
(1)
									 Systems shall
			 report sampling schedules in accordance with paragraph (I) of rule
			 3745-81-65
			 of the Administrative Code and source water monitoring results in accordance
			 with paragraph (A) of rule
			 3745-81-66
			 of the Administrative Code unless they notify the director that they will not
			 conduct source water monitoring due to meeting the criteria of paragraph (D) of
			 rule
			 3745-81-65
			 of the Administrative Code.
(2)
									 Systems shall
			 report their Cryptosporidium bin classification as described in paragraphs (A)
			 to (D) of rule
			 3745-81-67
			 of the Administrative Code.
(3)
									 Systems shall
			 report disinfection profiles and benchmarks to the director as described in
			 paragraph (E) of rule
			 3745-81-72
			 of the Administrative Code prior to making a significant change in disinfection
			 practice.
(4)
									 Systems shall report to the director in accordance
			 with the following table for any microbial toolbox options used to comply with
			 treatment requirements in accordance with paragraph (E) of rule
			 3745-81-67
			 of the Administrative Code. Alternatively, the director may approve a system to
			 certify operation within required parameters for treatment credit rather than
			 reporting monthly operational data for toolbox options.
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Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-71 - General requirements for filtration and disinfection of surface water sources

Current through all regulations passed and filed through July 1, 2024
(A)
								Rules 3745-81-71 to
			 3745-81-75 of the Administrative Code are derived from national primary
			 drinking water regulations. The treatment technique requirements of this rule
			 are established in lieu of maximum contaminant levels for the following
			 contaminants: Cryptosporidium, Giardia lamblia, viruses, heterotrophic plate
			 count bacteria, Legionella, and turbidity. Each public water system using a
			 surface water source, in whole or in part, shall provide treatment of that
			 source water which complies with the treatment technique requirements of this
			 rule. The treatment technique requirements consist of installing and properly
			 operating water treatment processes which consistently and reliably achieve
			 the following:
(1) At least 99.9 per cent (3 log) removal
			 and/or inactivation of Giardia lamblia cysts between a point where the raw
			 water is not subject to recontamination by surface water runoff and a later
			 point before or at the first customer.
(2) At least 99.99 per cent (4 log) removal
			 and/or inactivation of viruses between a point where the raw water is not
			 subject to recontamination by surface water runoff and a later point before or
			 at the first customer.
(3) At
			 least 99.0 per cent (2 log) removal of Cryptosporidium between a point where
			 the raw water is not subject to recontamination by surface water runoff and a
			 later point before or at the first customer.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-73 - Filtration of water from surface water sources

Current through all regulations passed and filed through July 1, 2024
A public water system that uses a surface water source, in
				whole or in part, shall provide treatment consisting of both disinfection, as
				specified in paragraph (B) of rule
				3745-81-72
				of the Administrative Code, and filtration treatment which complies with
				paragraph (A), (B), or (C) of this rule. 
				Distinction between surface water sources and ground water sources is set forth
				in rule
				3745-81-76
				of the Administrative Code. Filtration treatment shall consistently and
				reliably achieve at least ninety-nine per cent (2 log) removal of
				Cryptosporidium. Failure to meet any requirement of this rule shall be a
				treatment technique violation and shall require public notification as set
				forth in rule
				3745-81-32 of
				the Administrative Code.
(A)
			 Conventional filtration treatment . All public water systems using conventional
			 filtration treatment  to treat surface water shall meet the following:
(1) Turbidity levels of representative
			 samples of filtered water shall be less than or equal to 0.3 nephelometric
			 turbidity units (NTU) in at least ninety-five per cent of the samples analyzed
			 each month.
(2) The turbidity level
			 of representative samples of a public water system's filtered water shall not
			 exceed one NTU.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-74 - Turbidity and disinfection monitoring requirements for surface water systems

Current through all regulations passed and filed through July 1, 2024
A public water system that uses a surface water source, in
				whole or in part, shall conduct turbidity and disinfection monitoring in
				accordance with this rule.
(A)
			 Turbidity measurements to ensure compliance with rule
			 3745-81-73 of the Administrative
			 Code shall be performed on representative samples of filtered water at least
			 every four hours that the water treatment plant is in operation. If using grab
			 sampling for turbidity monitoring, samples shall be obtained within the first
			 and last hours of filter operation and at least every four hours in between.
			 Systems using grab sampling and monitoring at the clearwell effluent, the plant
			 effluent, or immediately prior to entry into the distribution system shall
			 monitor turbidity at least every four hours unless the high service pumps are
			 locked out for a portion of the day. If the pumps are locked out for a portion
			 of the day, samples shall be taken during the first and last hours of pump
			 operations, and every four hours in-between. A public water system may
			 substitute continuous turbidity monitoring (a reading at least every fifteen
			 minutes) for grab sample monitoring if  acceptable to the director.
			 Continuous turbidity monitoring shall only be used for
			 compliance if the continuous measurement is validated for accuracy using a
			 protocol acceptable to the director. Any of the following locations are
			 acceptable for monitoring turbidity of filtered water:
(1) At the combined filter effluent prior to
			 entry into the clearwell
(2) The
			 average of turbidity measurements from each individual filter effluent if each
			 filter has essentially the same loading rate
(3) At the clearwell effluent
(4) At the plant effluent or immediately
			 prior to entry into the distribution system.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-75 - Recordkeeping, reporting and actionable requirements

Current through all regulations passed and filed through July 1, 2024
A public water system that uses a surface water source shall
				report monthly to the director the information specified in paragraphs (A) to
				(F) of this rule. In addition, a public water system that
				shall
								
				monitor for TTHM, HAA5, bromate, chlorite, total residual chlorine, chlorine
				dioxide, or TOC shall comply with the applicable sections of paragraph (G) of
				this rule.
(A) Turbidity
			 determinations as required by paragraph (A) of rule
			 3745-81-74
			 of the Administrative Code shall be reported to the director within ten days
			 after the end of each month the public water system serves water to the public.
			 The information reported shall include the following:
(1) The total number of filtered water
			 turbidity determinations during the month. When filtered water turbidity is
			 recorded continuously, the reported number shall be the number of hours in
			 which turbidity values were recorded during the month.
(2) The number and per cent of filtered water
			 turbidity determinations during the month which are less than or equal to the
			 turbidity limits specified in paragraph (A)(1) or (B)(1) of rule
			 3745-81-73
			 of the Administrative Code for the filtration method being used. For public
			 water systems which continuously monitor turbidity, the duration and per cent
			 of filtered water turbidity readings during the month which are less than or
			 equal to the turbidity limits in paragraph (A) (1) or (B)(1) of rule
			 3745-81-73
			 of the Administrative Code shall be reported.
(3) The date and value of each turbidity
			 determination during the month which exceeds any applicable turbidity limit
			 specified in rule
			 3745-81-73
			 of the Administrative Code for the filtration method being used. For public
			 water systems which continuously monitor turbidity, the date and duration of
			 each period during the month that the turbidity exceeds the turbidity limit
			 specified in paragraph (A)(1) or (B)(1) and paragraph (A)(2) or (B)(2) of rule
			 3745-81-73
			 of the Administrative Code shall be reported.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-76 - Water source designation

Current through all regulations passed and filed through July 1, 2024
(A)
								 Source water
			 which is open to the atmosphere or subject to surface runoff is designated as
			 surface water. Surface water sources include streams, rivers, ponds, lakes,
			 reservoirs, springs, roof collection and impoundments.
(B)
								 Source water
			 which is obtained from a well is designated as ground water unless the director
			 designates the source as surface water.
(C)
								 The director may
			 designate a well as surface water based on information available in Ohio
			 environmental protection agency files about the water source and the water
			 produced from the source, information from on-site sanitary or geological
			 surveys, information supplied by the public water system upon a request from
			 the director, any additional information which becomes available, and the
			 guidelines outlined in the following paragraphs. A public water system shall
			 provide information requested by the director within six months of receipt of a
			 written request. Information requested for each water source may concern water
			 quality, well construction and location, geological information, particulate
			 analysis, Cryptosporidium analysis, Giardia lamblia analysis, E.coli analysis,
			 ground water source samples related to rules
			 3745-81-41
			 to
			 3745-81-43
			 of the Administrative Code, and other information related to designation of the
			 water source. A well may be designated as surface water if it meets any of the
			 following criteria:
(1)
									 The well does not meet all of the requirements for
			 wells in Chapter 3745-9 of the Administrative Code;
(2)
									 The well obtains
			 water from a site at which rapid pathways or compromised hydrogeologic barriers
			 have been identified; or
(3)
									 If required by the director, analysis shows the annual
			 mean E. coli concentration is greater than or equal to ten E. coli per one
			 hundred milliliters.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-77 - Treatment techniques for control of disinfection byproduct (DBP) precursors

Current through all regulations passed and filed through July 1, 2024
(A) Surface water community and nontransient
			 noncommunity public water systems using conventional filtration treatment shall
			 operate with enhanced coagulation or enhanced softening to achieve the TOC per
			 cent removal levels specified in paragraph (F) of this rule unless the system
			 meets at least one of the alternative compliance criteria listed in paragraph
			 (D) or (E) of this rule.
(B)
			 Surface water systems using conventional filtration treatment shall comply with
			 the following monitoring requirements for disinfection byproduct precursors
			 (DBPP).
(1) Routine monthly monitoring:
			 public water systems using surface water as a source which use conventional
			 filtration treatment shall monitor each treatment plant for TOC no later than
			 the point of combined filter effluent turbidity monitoring and representative
			 of the treated water. All public water systems required to monitor under this
			 paragraph shall also monitor for TOC in the source water prior to any treatment
			 at the same time as monitoring for TOC in the treated water. These samples
			 (source water and treated water) are referred to as paired samples. At the same
			 time as the source water sample is taken, all systems shall monitor for
			 alkalinity in the source water prior to any treatment. Public water systems
			 shall take one paired sample and one source water alkalinity sample every
			 thirty days per plant at a time representative of normal operating conditions
			 and influent water quality. The thirty day monitoring frequency may be extended
			 or reduced by three days to allow for unplanned circumstances that prevent
			 monitoring precisely thirty days apart, as long as the samples are collected
			 during each calendar month.
(2)
			 Reduced quarterly monitoring: public water systems using surface water as a
			 source with an average treated water TOC of less than 2.0 mg/l for two
			 consecutive years, or less than 1.0 mg/l for one year, may reduce monitoring
			 for both TOC and alkalinity to one paired sample and one source water
			 alkalinity sample per plant every ninety days. The ninety day monitoring
			 frequency may be extended or reduced by five days to allow for unplanned
			 circumstances that prevent monitoring precisely ninety days apart, as long as
			 the samples are collected during each calendar quarter. The public water system
			 must revert to routine monitoring in the month following the quarter when the
			 running annual average treated water TOC
>
2.0 mg/l.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-79 - Filter backwash recycling

Current through all regulations passed and filed through July 1, 2024
A surface water system that uses conventional filtration
				treatment or direct filtration treatment and that recycles spent filter
				backwash water, thickener supernatant, or liquid from a dewatering process
				shall meet the following:
(A) Surface
			 water systems shall notify the director in writing if spent filter backwash
			 water, thickener supernatant, or liquid from a dewatering process is recycled
			 prior to initiation of recycling if the notification requirements of this
			 paragraph have not been completed previously. This notification must include at
			 least the following information:
(1) A plant
			 schematic showing the origin of all flows which are recycled that may include,
			 but are not limited to:
(a) Spent filter
			 backwash water.
(b) Thickener
			 supernatant.
(c) Liquid from a
			 dewatering process.
(d) Filter to
			 waste.
(e) The hydraulic conveyance
			 used to transport them.
(f) The
			 location where they are mixed in the water treatment process.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-81 - Control of lead and copper; applicability of corrosion control treatment steps to small, medium, and large water systems

Current through all regulations passed and filed through July 1, 2024
(A) Public water systems shall complete the
			 applicable corrosion control treatment requirements described in rule
			 3745-81-82
			 of the Administrative Code by the deadlines established in this rule.
(1) A large system (serving more than fifty
			 thousand persons) shall complete the corrosion control treatment steps
			 specified in paragraph (D) of this rule, unless otherwise determined by the
			 director.
(2) A small system
			 (serving less than or equal to three thousand three hundred persons) and a
			 medium system (serving more than three thousand three hundred and less than or
			 equal to fifty thousand persons) shall complete the corrosion control treatment
			 steps specified in paragraph (E) of this rule, unless
			 otherwise
			 determined by the director.
Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-81 - Primary Drinking Water Rules › Section 3745-81-82 - Control of lead and copper; description of corrosion control treatment requirements

Current through all regulations passed and filed through July 1, 2024
Each public water system shall complete the corrosion control
				treatment requirements described below which are applicable to such system
				under rule
				3745-81-81
				of the Administrative Code.
(A) Small
			 public water system recommendation regarding corrosion control treatment. Based
			 upon the results of lead and copper tap monitoring and water quality parameter
			 monitoring, small water systems exceeding the lead or copper action level shall
			 recommend installation of and submit plans for one or more of the corrosion
			 control treatments listed in paragraph (C)(1) of this rule which the system
			 believes constitute optimal corrosion control for that system. The director may
			 require the small system to conduct additional water quality parameter
			 monitoring in accordance with paragraph (B) of rule
			 3745-81-87
			 of the Administrative Code to assist the director in reviewing the system's
			 recommendation.
(B) Studies of
			 corrosion control treatment by small and medium systems. The director may
			 require any small system that exceeds the lead or copper action level to
			 perform corrosion control studies under paragraph (C) of this rule to identify
			 optimal corrosion control treatment for the system. Any medium system that
			 exceeds the lead or copper action level shall perform corrosion control studies
			 under paragraph (C) of this rule in order to identify optimal corrosion control
			 treatment for the system.
(C)
			 Performance of corrosion control studies.
(1)
			 Any public water system performing corrosion control studies shall evaluate the
			 effectiveness of each of the following treatments and, if appropriate,
			 combinations of the following treatments to identify the optimal corrosion
			 control treatment for that system:
(a)
			 Alkalinity and pH adjustment;
(b)
			 Calcium hardness adjustment; and
(c) The addition of a phosphate-based or
			 silicate-based corrosion inhibitor at a concentration sufficient to maintain an
			 effective residual concentration in all test tap samples.