reglab/statecodes huggingface dataset:
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 3 - Benchmarks and Implementation for IPR Source Water Discharges › Section 252:628-3-6 - IPR benchmarks for additional conservative parameters

Current through Vol. 41, No. 20, July 1, 2024
(a)
Additional conservative parameters.
Refer to Appendix A of this
				Chapter for the list of additional conservative parameters.
(b)
Effluent limitations for
				TDS.
Effluent limitations for TDS shall be set so the maximum ambient
				concentration will not exceed the greater of 700 milligrams per liter or two
				(2) standard deviations above the mean background TDS value of the receiving
				waterbody prior to IPR Source Water discharge. The calculated permit limit
				shall be applied as a monthly average permit limit in the OPDES discharge
				permit. The daily maximum permit limit shall be established as 1.5 times the
				monthly average permit limits. Background levels may be established from any
				combination of scientifically defensible data, including historical data,
				segment averages, and baseline monitoring.
(c)
Permit reopener for TDS.
Should receiving water monitoring for TDS indicate that the receiving waterbody
				has exceeded the greater of 700 milligrams per liter or two (2) standard
				deviations above the mean background TDS value prior to IPR discharge, the
				permit may be reopened and modified to reduce effluent limitations or increase
				frequency of effluent monitoring.
(d)
Effluent limitations for additional
				conservative parameters other than TDS.
Effluent limitations for
				additional conservative parameters other than TDS shall be calculated to meet
				action levels established in accordance with Subchapter 11 of this Chapter. The
				calculated permit limits shall be applied as monthly average permit limits in
				the OPDES discharge permit. Daily maximum permit limits shall be established as
				1.5 times the monthly average permit limits.
(e)
Mixing zones.
Complete
				mixing of effluent and receiving water shall be used to determine appropriate
				effluent limitations for additional conservative parameters, unless superseded
				by mixing zones or dilution factors established in OAC 252:740. An HMB model or
				other DEQ-approved model shall be used for implementation purposes.
(f)
Effluent monitoring
				requirements.
The following effluent monitoring requirements apply:
(1) IPR Source Water discharges shall be
				monitored for additional conservative parameters monthly.
(2) DEQ may increase the monitoring
				frequencies listed in (f)(1) of this Section for a period not to exceed two
				years during the initial permit cycle for the purpose of establishing the
				pattern and extent of variation for a given parameter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 3 - Benchmarks and Implementation for IPR Source Water Discharges › Section 252:628-3-8 - IPR benchmarks for Constituents of Emerging Concern

Current through Vol. 41, No. 20, July 1, 2024
(a)
Effluent monitoring
				requirements.
IPR Source Water discharges shall be monitored quarterly
				for a DEQ-approved list of CEC surrogates. In addition, IPR Source Water
				discharges shall be monitored for a DEQ-approved list of CECs every five (5)
				years upon permit renewal, in accordance with permit application requirements.
				IPR Sample plans are described in Subchapter 11 of this Chapter.
(b)
Corrective actions.
Should
				effluent monitoring conducted in accordance with paragraph (a) of this Section
				demonstrate that the IPR SWTP is not achieving overall CEC reductions, show an
				anomalous spike, or should IPR receiving waterbody monitoring indicate a
				violation of an action level established in accordance with Subchapter 11 of
				this Chapter, the permittee shall notify DEQ within 24 hours and initiate
				corrective action if directed by DEQ. A written report describing the reason(s)
				for the failure to achieve overall CEC reductions or for the violation(s) of
				the action levels and the proposed corrective action(s) shall be submitted to
				DEQ within five (5) days. Corrective actions to control CECs shall include but
				not be limited to:
(1) Evaluating the
				treatment system effectiveness, operations and maintenance, and making
				alterations as necessary;
(2)
				Increasing the effluent monitoring frequency to better characterize the pattern
				and extent of variation for a given CEC;
(3) Evaluating the collection system for new
				or increased sources and taking appropriate steps to reduce these sources;
				and
(4) Implementing additional
				source controls such as Best Management Practices (BMPs), community disposal
				centers for pharmaceutical and personal care products (PPCPs), and/or public
				outreach and awareness programs.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 3 - Benchmarks and Implementation for IPR Source Water Discharges › Section 252:628-3-9 - Monitoring frequency reduction

Current through Vol. 41, No. 20, July 1, 2024
After two years of monitoring, DEQ may reduce the monitoring
				  frequencies on a case-by-case basis for parameters in this Subchapter if the
				  applicant demonstrates that effluent limitations are being met and that public
				  health will be protected. In no case shall the frequency of monitoring for
				  parameters be reduced below the following frequencies:
(1) Disinfection By products, Metals and
				Inorganics, Organics: Monthly;
(2)
				Nutrients: Twice a month during the period of May through October and monthly
				during the period of November through April;
(3) Pesticides: Quarterly;
(4) CECs: Annually;
(5) TDS, chloride, and sulfate: Quarterly;
				and
(6) Radionuclides: No
				monitoring frequency reduction.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 3 - Benchmarks and Implementation for IPR Source Water Discharges › Section 252:628-3-10 - Reduction or cessation of IPR Source Water discharge

Current through Vol. 41, No. 20, July 1, 2024
(a)
Protection of public health and the
				environment.
DEQ may require the reduction or cessation of IPR Source
				Water discharge if deemed necessary to protect public health or the
				environment.
(b)
Violation.
Should effluent monitoring indicate a violation of an
				effluent limitation established in accordance with this Subchapter, the
				permittee shall immediately initiate corrective action and notify DEQ within 24
				hours. A written report describing the reason(s) for the violation(s) and the
				steps taken to correct the violation(s) shall be submitted to DEQ within five
				(5) days. DEQ may require the permittee to reduce its discharge via the IPR
				Source Water out fall until corrective action is completed and written approval
				to resume full discharge is received from DEQ.
(c)
Serious violation.
Should a
				serious violation be identified, the permittee shall immediately cease
				discharge via the IPR Source Water outfall, initiate corrective action, and
				notify DEQ within 24 hours. Discharge via the IPR Source Water outfall shall
				not recommence until corrective action is completed and written approval is
				received from DEQ. Any of the following constitute a serious violation:
(1) A 20% exceedance of a specific effluent
				limitation developed in accordance with this Subchapter during two or more
				months during a rolling six-month period;
(2) A violation of any monthly effluent
				limitation by any amount for any four or more months during a rolling six-month
				period;
(3) Substantial deviation
				from the terms of a permit;
(4)
				Discharge of a parameter at a concentration that poses an acute risk to public
				health; or
(5) Failure to submit
				any monitoring report pursuant to this Chapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-1 - IPR Source Water Treatment Plant

Current through Vol. 41, No. 20, July 1, 2024
IPRSWTPs shall be designed to meet the IPR benchmarks
				  outlined in Subchapter 3 of this Chapter. Basic treatment components and
				  concepts for all IPR SWTPs are defined below in this
				  Subchapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-2 - Source control

Current through Vol. 41, No. 20, July 1, 2024
All IPR projects will be required to design and implement an
				  enhanced source control program in order to ensure that regulated industrial
				  chemicals, as well as CECs, that enter or could enter the wastewater collection
				  system, especially from industrial and commercial sources, are identified,
				  controlled, monitored, and minimized prior to entering the IPR
				  SWTP.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-3 - Reliability, redundancy, robustness, and resilience

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall incorporate design elements that demonstrate
				  the ability to consistently provide for protection of public health and the
				  environment (reliability); provide sufficient treatment units and monitoring
				  systems necessary to meet treatment and performance goals (redundancy); provide
				  multiple barriers and demonstrate the ability to address a broad variety of
				  parameters (robustness); and demonstrate the ability to withstand and recover
				  from treatment upsets (resilience).
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-4 - General Standards, Preliminary Treatment Standards, and Sludge Facility Standards

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall be designed to comply with the General
				  Standards outlined in OAC 252:656-9, the Preliminary Treatment Standards
				  outlined in OAC 252:656-13, and the Sludge Facility Standards outlined in OAC
				  252:656-19, along with any other construction standards outlined in OAC 252:656
				  that are directly related to the proposed IPR project.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-5 - Nutrient removal requirements

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall be designed to provide a high level of
				  nutrient removal, as outlined in Subchapter 3 of this Chapter. At a minimum,
				  IPR SWTPs shall be designed to comply with the Biological Nutrient Removal
				  requirements outlined in OAC
				  252:656-16-3.
				  Other nutrient removal options will be evaluated on a case-by-case
				  basis.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-6 - Filtration requirements

Current through Vol. 41, No. 20, July 1, 2024
The disinfection requirements for IPR SWTPs necessitate a
				  high level of filtration upstream of disinfection processes. At a minimum, IPR
				  SWTPs shall be designed to comply with the Effluent Filtration requirements
				  outlined in OAC
				  252:656-23-1
				  to comply with the turbidity benchmarks outlined in Subchapter 3 of this
				  Chapter. Membrane filtration systems will be evaluated on a case-by-case basis,
				  as outlined in OAC
				  252:656-23-4.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-7 - Disinfection requirements

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall include, at a minimum, a combination of a
				  chlorine disinfection system designed to comply with OAC
				  252:656-21-2
				  and an ultraviolet radiation disinfection system designed to comply with OAC
				  252:656-21-3,
				  or an approvable equivalent, in order to comply with the requirements outlined
				  in Subchapter 3 of this Chapter. Other disinfection systems will also be
				  considered, provided that the overall design consists of multiple barriers and
				  achieves the disinfection requirements outlined in Subchapter 3 of this
				  Chapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 5 - Treatment Standards For Ipr Source Water › Section 252:628-5-8 - Constituents of Emerging Concern requirements

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall be designed in order to comply with the
				  requirements outlined in Subchapters 1 and 3 of this Chapter related to CECs.
				  Additional treatment, above and beyond the processes outlined in this
				  Subchapter, shall be provided as necessary.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-1 - General provisions

Current through Vol. 41, No. 20, July 1, 2024
(a) This
				Subchapter sets the operation standards and maintenance criteria for IPR SWTPs.
				Other rules may govern indirect potable reuse operations, such as the Oklahoma
				Pollutant Discharge Elimination (OPDES) Standards (OAC 252:606), Water
				Pollution Control Facility Construction Standards (OAC 252:656), Laboratory
				Accreditation (OAC 252:301), Water Quality Standards Implementation (OAC
				252:690), Public Water Supply Construction Standards (OAC 252:626) and
				Waterworks and Wastewater Works Operator Certification (OAC 252:710).
(b) This Subchapter applies to any
				person or entity, including any federal facility that operates an IPR SWTP in
				Oklahoma.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-2 - Compliance required

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall be operated pursuant to the terms of permits
				  issued by DEQ and this Chapter. When in conflict, the terms of the permit shall
				  supersede the requirements of this Chapter. IPR SWTPs shall reduce or cease
				  discharging whenever the IPR Source Water does not meet the requirements in
				  Subchapter 3 of this Chapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-3 - DEQ's right to inspect

Current through Vol. 41, No. 20, July 1, 2024
Nothing in this Chapter shall affect DEQ's statutory right to
				  enter and inspect IPR SWTPs.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-4 - Security

Current through Vol. 41, No. 20, July 1, 2024
IPR SWTPs shall provide:
(1) Fencing with locking gates; and
(2) Other necessary precautions to prevent
				vandalism, pilfering, trespass, and sabotage.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-5 - Operation and maintenance for IPR Source Water Treatment Plants

Current through Vol. 41, No. 20, July 1, 2024
(a)
Operation.
IPR SWTPs shall
				properly operate in accordance with an O&M Manual and Operator Protocol
				Procedures as required in this Section. IPR SWTPs shall maintain each unit to
				provide treatment in accordance with DEQ-approved plans and specifications, in
				accordance with the purpose for which the units were designed, and according to
				the terms of their permits. Permits may contain more stringent provisions than
				contained in this Chapter to meet the intended level of reuse. Employees shall
				be trained in the proper operation and maintenance of the IPR SWTP.
(1) Within ninety (90) days of the completion
				of construction, the applicant shall submit to DEQ an O&M Manual.
(2) Within one hundred eighty (180) days of
				the completion of construction, the applicant shall submit to DEQ Operator
				Protocol Procedures for the IPR SWTP.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-6 - Laboratory accreditation

Current through Vol. 41, No. 20, July 1, 2024
Analyses performed for compliance purposes shall either be
				  performed by a laboratory accredited by DEQ or by a laboratory operator
				  certified by DEQ at the proper level. Process control tests may be performed by
				  a laboratory operator certified by DEQ. See OAC 252:628-7-8 for proper
				  laboratory operator classification.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-7 - Validation of data

Current through Vol. 41, No. 20, July 1, 2024
(a) Samples used to
				determine compliance with these regulations shall be properly collected and
				submitted by trained and authorized personnel, analyzed in an accredited
				laboratory, and be representative of the IPR Source Water produced by the IPR
				SWTP.
(b) Subchapter 3 of this
				Chapter requires continuous monitoring of flow and turbidity as a means of
				controlling operation of IPR SWTP. pH shall be monitored in accordance with OAC
				252:628-3-4(c). Continuous monitoring equipment shall meet the following
				conditions:
(1) The proposed monitoring
				equipment shall generate a continuous reading;
(2) The proposed monitoring equipment shall
				be equipped with an automated data logging or recording device; and
(3) The proposed monitoring equipment shall
				be calibrated at least quarterly and according to the requirements of the
				manufacturer's instructions.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-8 - Operator requirements

Current through Vol. 41, No. 20, July 1, 2024
(a)
Operator certification.
The superintendent of an IPR SWTP shall
				hold certification as both a Class A waterworks operator and a Class A
				wastewater works operator. The superintendent, assistant superintendent, as
				defined in OAC 252:710, or any operator in direct charge while an IPR SWTP is
				in operation and discharging IPR Source Water, shall hold such dual Class A
				operator certifications.
(b)
Laboratory operator certification.
The duties performed by a
				laboratory operator of an IPR SWTP shall be performed by or under the general
				supervision of a laboratory operator that holds certification as both a Class A
				waterworks laboratory operator and a Class A wastewater works laboratory
				operator in accordance with OAC 252:710.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 7 - Operation And Maintenance For Ipr Source Water Treatment Plants › Section 252:628-7-9 - Sampling, record keeping and reporting requirements

Current through Vol. 41, No. 20, July 1, 2024
(a)
Sampling.
Sampling shall be
				in accordance with DEQ-approved sampling plans required in this Chapter, OAC
				252:606, and OAC 252:690.
(b)
Recordkeeping.
The following recordkeeping requirements apply:
(1)
Operational records.
All IPR
				SWTPs shall meet the following requirements:
(A) Keep a daily record of the operations
				performed in the treatment process;
(B) Record observations, costs, and
				occurrences related to the operation of the plant;
(C) Record the process control tests and
				laboratory checks;
(D) For each
				required measurement or sample, record:
(i)
				The date, exact place and time of sample and indicate whether a grab sample or
				composite;
(ii) The dates the
				analyses were performed;
(iii) The
				laboratory and name of the operator who performed each analysis;
(iv) The results of all analyses;
(v) The instantaneous flow at the time of
				grab sample collection or a record of each flow taken while collecting a
				composite sample; and
(vi) The
				method of composite sample calculations and other calculations;
(E) If applicable, the results of
				direct integrity testing and indirect integrity monitoring for membrane
				filtration as required in OAC
				252:626-9-9(f);
				and
(F) Record any other applicable
				data.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-1 - General

Current through Vol. 41, No. 20, July 1, 2024
(a)
Purpose.
No one shall
				construct, modify, or operate an IPR SWTP or associated systems without first
				obtaining a Permit to Construct pursuant to OAC 252:656.
(b)
Intent.
This Subchapter
				implements the permitting process of Part 4, Wastewater and Wastewater
				Treatment Systems, 27A O.S. Section 2-6-401 et seq., and the Oklahoma Uniform
				Environmental Permitting Act, 27A O.S. Section 2-14-101 et seq. for IPR
				SWTPs.
(c)
Voluntary
				activity.
The discharge of IPR Source Water for surface water
				augmentation is a voluntary activity by the applicant, and the goal of these
				rules is to manage the risk to public health, safety, and welfare. The
				operating and monitoring requirements of this Chapter may require the reduction
				or cessation of the IPR discharge in accordance with Subchapters 3 and 7 of
				this Chapter. The applicant shall establish and/or maintain an approved non-IPR
				outfall separate from the IPR outfall. The approved non-IPR outfall and non-IPR
				wastewa-ter treatment system shall be capable of design peak flows and
				wasteload for the existing and ultimate conditions, including the IPR discharge
				flow and wasteload.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-2 - Permitting process

Current through Vol. 41, No. 20, July 1, 2024
The permit application is a six-step process:
(1) Submit a feasibility study;
(2) Submit a pilot study protocol, if
				required;
(3) Submit a Wasteload
				Allocation (Modification) Request letter:
(A)
				The applicant shall be required to provide a hydrodynamic water quality model
				and a hydrologic mass balance model; and
(B) Any new or modified wasteload allocations
				require an update to the Oklahoma Water Quality Management Plan (208 Plan)
				which also requires approval from EPA Region 6.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-3 - Applications

Current through Vol. 41, No. 20, July 1, 2024
Applicants seeking permits to construct and operate an IPR
				  SWTP shall submit documentation to DEQ as described in OAC 252:606-3, OAC
				  252:656-3-2, and OAC
				  252:690.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-4 - Feasibility study

Current through Vol. 41, No. 20, July 1, 2024
(a) Applicants
				shall submit to DEQ three (3) copies and receive approval of the feasibility
				study for the proposed new IPR SWTP prior to the submittal of the IPR SWTP
				engineering report. Applicants shall also submit a letter in which the
				applicant endorses the content of each feasibility study submitted to
				DEQ.
(b) The feasibility study
				shall include, at a minimum:
(1) An
				evaluation of the applicant's needs, preferably sourced from the applicant's
				local Strategic Water Supply Plan, or other similar document;
(2) A description of water reuse and
				reclamation opportunities;
(3) A
				description of potential alternatives (including reuse and non-reuse) with
				comparisons as appropriate of cost effectiveness, operational complexity,
				environmental impact, reliability, and flexibility;
(4) A discussion of the potential of the
				project for water supply diversification, such as lowered demand on groundwater
				supplies in time of drought;
(5)
				For waterbodies and watersheds designated as SWS-R, a discussion of the
				project's potential impact on water quality and the environment, including but
				not limited to a discussion regarding antidegradation requirements, criteria to
				protect beneficial uses, and assimilative capacity as described in OAC 252:730,
				OAC 252:740; and
(6) A discussion
				of any legal, regulatory, jurisdictional, and partnership concerns regarding
				the project.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-5 - Pilot study

Current through Vol. 41, No. 20, July 1, 2024
Applicants shall submit two (2) copies of a pilot study
				  protocol for review and approval by DEQ. If applicants believe a pilot study is
				  not necessary, justification shall be submitted to DEQ for
				  approval.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-6 - Engineering report

Current through Vol. 41, No. 20, July 1, 2024
Applicants shall submit to DEQ three (3) copies and receive
				  approval of the engineering report for proposed new construction or
				  modifications to IPR SWTPs prior to the submittal of plans and specifications.
				  All engineering reports submitted to DEQ shall be signed and sealed by an
				  engineer licensed by the State of Oklahoma. The engineering report, including
				  the results of any pilot studies, shall address the project pursuant to the
				  approved feasibility study. Applicants shall also submit a letter in which the
				  applicant endorses the contents of each engineering report submitted to DEQ.
				  Engineering reports shall include the requirements as described in OAC
				  252:656-3-4,
				  as well as addressing the design requirements of this
				  Chapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-7 - Plans and specifications

Current through Vol. 41, No. 20, July 1, 2024
Applicants shall submit to DEQ three (3) copies of the plans
				  and specifications. The plans and specifications shall address the entire
				  project pursuant to the approved engineering report as required in OAC
				  252:628-9-6. Plans and specifications shall include the requirements as
				  described in OAC
				  252:656-3-5,
				  as well as addressing the design requirements of this
				  Chapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-8 - Revisions

Current through Vol. 41, No. 20, July 1, 2024
Revisions of the approved IPR SWTP plans and specifications
				  shall meet the requirements of OAC
				  252:656-3-6.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-9 - Variances from construction standards

Current through Vol. 41, No. 20, July 1, 2024
The policy of DEQ is to encourage better treatment methods
				  and equipment, including the use of new technology. DEQ may approve processes
				  or equipment not specifically covered by the standards in this Chapter provided
				  the permittee requests a variance. A variance from the standards in this
				  Chapter may be allowed, upon request of the applicant, if the DEQ finds the
				  variance shall not increase the likelihood of a system failure. No variance
				  shall be allowed unless it is noted on the construction permit. The IPR SWTP
				  variance request shall meet the requirements of OAC
				  252:656-3-7.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 9 - Permitting Requirements for IPR Source Water › Section 252:628-9-10 - Operation and maintenance

Current through Vol. 41, No. 20, July 1, 2024
Permittee shall submit O&M Manuals and Operator Protocol
				  Procedures in accordance with OAC 252:628-7-5.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-1 - General provisions

Current through Vol. 41, No. 20, July 1, 2024
(a)
Purpose.
The rules of this Subchapter provide protocols which
				shall be used to monitor ambient water quality in sources for Public Water
				Supply (PWS) systems being augmented with IPR Source Water. The goals of the
				waterbody monitoring are as follows:
(1) To
				protect public health and the environment by monitoring for changes in the
				receiving waterbody;
(2) To protect
				the beneficial uses of the receiving waterbody by performing trend monitoring
				on parameters that are evaluated in use attainment assessments; and
(3) To evaluate modeling outcomes for all
				waterbodies and to monitor the assimilative capacity for SWS-R
				waterbodies.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-2 - Sampling plans

Current through Vol. 41, No. 20, July 1, 2024
(a)
General.
The applicant shall submit sampling plans for baseline
				monitoring, OPDES permit monitoring, and OPDES permit renewal monitoring for
				DEQ approval. Sampling plans shall consider the environmental and spatial
				variability of the waterbody, including limnological, hydrologic, seasonal, and
				temporal variation. The sampling plans shall also consider both the internal
				and external loading and nutrient cycling.
(b)
Baseline characterization.
The provisions of this Subsection shall be used to establish a baseline
				characterization of the IPR receiving waterbody before the IPR Source Water
				discharge begins.
(1)
Baseline
				characterization sampling plan.
The permittee shall submit a baseline
				characterization sampling plan to DEQ for review and approval. The plan shall
				meet the minimum requirements outlined in this Subchapter.
(2)
Duration.
The baseline
				characterization of the waterbody shall include data collected for a minimum of
				one (1) year. Length of monitoring plan may be adjusted by DEQ based on
				location and parameter.
(3)
Frequency.
Sampling frequency for each parameter is subject to DEQ
				approval and shall be identified in the sampling plan. Sampling frequency may
				be adjusted by DEQ based on location and parameter. Each sampling event shall
				occur at least once per month so that a scientifically defensible data set will
				be generated after one (1) year. At least ten (10) data points per monitoring
				site are required for a baseline data set to be considered complete.
(4)
Spatial.
Sampling locations
				for each parameter are subject to DEQ approval.
(5)
Baseline waterbody monitoring
				list.
The list of parameters monitored to establish a baseline shall be
				robust enough to establish a scientifically defensible baseline for all factors
				of concern in the receiving waterbody. The required parameters for baseline
				characterization are subject to DEQ approval. Additional information can be
				found in Subchapter 7 of this Chapter.
(6)
SWS-R Waterbodies.
Baseline
				sampling of SWS-R waterbodies shall meet the requirements of OAC
				252:740-13.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-3 - Data requirements

Current through Vol. 41, No. 20, July 1, 2024
(a)
General.
Scientific data from the waterbody shall be used as
				prescribed in this Section. Data shall be collected and analyzed in a manner
				consistent with testing procedures provided in OAC 252:740 or practices that
				are institutionally recognized and appropriate for the parameter of concern and
				documented in accordance with OAC
				252:740-15-3(g).
				All relevant existing data available for a waterbody shall be used in the
				analysis, subject to the spatial, temporal, and other requirements of this
				Section.
(b)
Spatial
				coverage.
Subject to DEQ approval, IPR monitoring sites shall include:
(1) All drinking water intake structures
				located on the receiving waterbody. Some parameters may be sampled from a raw
				water tap at the water treatment plant. Other parameters shall be sampled in
				the receiving waterbody at a point near the intake. Intake structure sampling
				site requirements for individual parameters are subject to DEQ
				approval.
(2) Any additional
				drinking water intake structures within five (5) miles downstream of the
				discharge point.
(3) IPR Source
				Water discharge areas.
(4)
				Beneficial Use Monitoring Program (BUMP) monitoring stations, if applicable.
				Waivers for individual BUMP monitoring stations may be granted at DEQ's
				discretion.
(5) Other sites as
				assigned. If the receiving water does not have BUMP monitoring stations, or the
				BUMP monitoring stations are not adequate for IPR receiving water monitoring
				requirements, DEQ shall assign additional monitoring sites. Alternatively, the
				permittee may propose monitoring sites, subject to DEQ
				approval.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-4 - SWS-R requirements

Current through Vol. 41, No. 20, July 1, 2024
(a)
Assimilative capacity.
The permittee shall determine assimilative
				capacity and propose allowable consumption, if any, as outlined in OAC
				252:730-5-25(c)(8)(C)
				and OAC 252:740-13. Monitoring for assimilative capacity in SWS-R waterbodies
				shall meet the requirements outlined in OAC 252:740-13. The IPR receiving
				waterbody monitoring program shall include monitoring the assimilative
				capacity.
(b)
Chlorophyll-a.
The long-term average concentration of
				chlorophyll-a shall not exceed 0.010 milligrams per liter (mg/L), as outlined
				in OAC 252:730-5-10(7).
				The IPR receiving waterbody monitoring program shall include monitoring
				chlorophyll-a levels, with greater frequency during critical periods.
(c)
Technical evaluation report.
The permittee shall technically evaluate the IPR receiving waterbody at least
				once every five years to determine the attainment or nonattainment of
				beneficial uses, as outlined in OAC
				252:730-5-25(c)(8)(D).
				The IPR receiving waterbody monitoring program shall include the collection of
				data necessary to complete the technical evaluation report.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-5 - Action levels

Current through Vol. 41, No. 20, July 1, 2024
(a)
General.
At a minimum, action levels shall protect beneficial uses
				and the criteria developed to protect them and consider rules regarding use of
				assimilative capacity in SWS-R waterbodies as outlined in OAC 252:730 and OAC
				252:740-13.
(b)
Statistical
				significance.
Some action levels, such as the action levels for CECs,
				are based on a statistically significant increase. Determination of statistical
				significance is subject to DEQ approval. The determination of statistical
				significance may be determined by methods listed in this subsection, or by
				other DEQ-approved methods.
(1)
The
				Student's t Test.
The student's t test can be used to determine if two
				sets of data are significantly different from each other. A 95% confidence
				level shall be used when using the student's t test to determine statistical
				significance.
(2)
Multiple
				range tests.
Multiple range tests can be used to test for significant
				difference for a group of ranked means. Tests may include least significant
				difference or multiple t test, Student-Newman-Keuls test, Tukey's test based on
				allowances, and Duncan's multiple range test. A significance level of 5% shall
				be used.
(3)
Distribution
				free methods.
For parameters that will likely not be normally
				distributed, distribution free methods shall be used to determine statistical
				significance. Options include the Mann-Whitney test, Mood's Median test, and
				the Kruskal-Wallis test.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-6 - Trend monitoring

Current through Vol. 41, No. 20, July 1, 2024
(a)
General.
IPR receiving waterbody monitoring data shall be analyzed
				for trends over multiple time steps and periods. The intent of trend monitoring
				is to alert the permittee to changes in the IPR receiving waterbody before
				action levels are reached or beneficial uses are impaired. Data collection
				shall be adequate to meet assumptions and requirements of statistical tests and
				models.
(b)
Types of trends.
The permittee shall monitor trends for DEQ-approved parameters. The
				trends, including the trends from the inception of the IPR Source Water
				discharge, shall be monitored by the following techniques, or other
				DEQ-ap-proved methods.
(1)
Regression
				analysis.
Using available data collected from the first day of IPR
				Source Water discharge, evaluate linear and non-linear relationships of
				concentration or loads versus time. Use of concentrations or loads will depend
				on parameter. Regression analysis may also be run for shorter time
				periods.
(2)
Running
				average.
A running average shall be based on the sampling frequency
				(e.g., a running weekly average for daily monitoring, a running monthly average
				for weekly monitoring, etc.).
(3)
Projection.
Projections may be determined by calculating the sum
				of the two previous quarter's results plus twice the current quarter's results,
				with the sum divided by four, or by a similar method.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Subchapter 11 - IPR Receiving Waterbody Monitoring › Section 252:628-11-7 - Developing parameter monitoring lists

Current through Vol. 41, No. 20, July 1, 2024
(a)
General.
Where applicable,
				subsets of parameter groups may be used to meet waterbody monitoring
				requirements. Surrogates are not appropriate for the in-situ, nutrients, algal
				biomass, minerals, and TOC parameter groups. Monitoring locations, frequency,
				and temporal concerns are addressed elsewhere in this Subchapter. All parameter
				monitoring lists are subject to DEQ approval. As part of the sampling plans,
				the applicant shall submit parameter lists for baseline monitoring, OPDES
				permit monitoring, and OPDES permit renewal monitoring for DEQ approval.
				Parameter monitoring lists shall be adequate to meet all monitoring
				requirements and fulfill the purposes of the waterbody monitoring as outlined
				in Section 1 of this Chapter.
(b)
Likely to be present in discharge.
If a parameter is likely to be
				present in IPR discharge, that parameter or surrogate shall be monitored in the
				waterbody. A parameter is considered likely to be present in the discharge if
				there is a permit limit established for the parameter, if pilot testing has
				shown it is likely to be present, or if DEQ determines it is likely to be
				present. Other parameters with or without permit limits may be added to or
				removed from waterbody monitoring as determined by DEQ.
(c)
Surrogates.
The parameter
				groups of metals, toxics, CECs, and other drinking water parameters are
				eligible to meet waterbody monitoring requirements through surrogates. The
				presence and concentration levels of any surrogate must be representative of
				its entire parameter group. All surrogates are subject to DEQ approval.
(1)
Metals.
Hardness and at
				least one other parameter from the metals parameter group are required for
				water-body monitoring.
(2)
Toxics.
At least one organic toxic parameter is required for
				waterbody monitoring from each of the following categories: acid compounds,
				base/neutral compounds, and pesticides.
(3)
Constituents of Emerging
				Concern.
At least one surrogate shall be selected from each CEC
				functional group for waterbody monitoring. Functional groups, e.g., based on
				chemical structures as appropriate, will be determined by DEQ.
(4)
Other drinking water
				parameters.
Surrogates for waterbody monitoring may be selected for
				other drinking water parameters subject to DEQ approval.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation › Appendix A - IPR SOURCE WATER BENCHMARKS

Current through Vol. 41, No. 20, July 1, 2024
Parameter
IPR Benchmark (µg/L unless otherwise
						  noted)
1. GENERAL BENCHMARKS
CBOD5
5.0 mg/L daily maximum
Flow
Monitor continuously
PH
6.5 to 9.0 standard units
TOC
Monitor daily
TSS
5.0 mg/L daily maximum
Turbidity
Turbidity shall not exceed the following:
* 2 NTU daily average;
* 5 NTU > 5% of the daily maximum per month;
						  or
* 10 NTU daily maximum .
TRC or TRO
No measureable amount (<0.1 mg/L) daily
						  maximum
2. PATHOGEN BENCHMARKS
Pathogens
Disinfection from secondary treated effluent to end of
						  pipe discharge shall achieve:
(1) 5-log removal or inactivation of adenovirus type
						  15;
(2) 5-log removal or inactivation of Salmonella
						  typhimurium;
(3) 3-log removal or inactivation of Cryptosporidium
						  oocysts; and
(4) 3-log removal or inactivation of Giardia lamblia
						  cysts.
Total coliform
No measurable amount (<2 per 100 milliliters)
3. PRIMARY BENCHMARKS
3.1 Non-Conservative STibstances
3.1.1 Disinfection Byproducts
Bromate
10
Chlorine Dioxide {as CIO2)
800
Haloacetic acids (HAAS)
60
Total Trihalomethanes (TTHMs)
80
3.1.2 Nutrients
Nitrate (as N)
10 mg/L
Nitrite (as N)
1 mg/L
3.2 Conservative Substances
3.2.1 Metals and Inorganics
Antimony
6
Arsenic
10
Barium
2,000
Beryllium
4
Chromium, Total
100
Fluoride
4,000
Selenium
50
Thallium
2
3.2.2 Organlcs
Benzene
5
Benzo{a)pyrene (PAHs)
0.2
Carbofuran
40
Carbon Tetrachloride
5
Chlorobenzene
100
1, 2-Dibromo-3-chloropropane (DBCP)
0.2
o-Dichlorobenzene
600
p-Dichlorobenzene
75
1, 2-Dichloroethane
5
1,1-Dichloroethylene
7
cis-1, 2-Dichloroethylene
70
trans-1, 2-Dichloroethylene
100
Dichloromethane
5
1, 2-Dichloropropane
5
Di(2 -ethyIhexy1)adipate
400
Di(2 -ethylhexyl)phthalate
6
Ethylbenzene
700
Ethylene Dibromide
0.05
Hexachlorocyclopentadiene
50
Pentachlorophenol
1
Styrene
100
Tetrachloroethylene
5
Toluene
1, 000
1, 2, 4-Trichlorobenzene
70
1, 1, 1-Trichloroethane
200
1, 1, 2-Trichloroethane
5
Trichloroethylene
5
Vinyl Chloride
2
Xylenes (Total)
10,000
3.2.3 Pesticides
Alachlor
2
Atrazine
3
2, 4-D
70
Dalapon
200
Dinoseb
7
Diquat
20
Endothall
100
Glyphosate
700
Heptachlor Epoxide
0.2
Lindane
0.2
Oxamyl (Vydate)
200
Picloram
500
Simazine
4
Toxaphene
3
2, 4, 5-TP (Silvex)
50
3.2.4 Radionuclides
Alpha particles
15 pCi/L
Beta particles and photon emitters
4 millirems per year
Radium 22 6 and Radium 22 8 (combined)
5 pCi/L
Uranium
30
4. IPR BENCHMARKS FOR ADDITIONAL CONSERVATIVE
						  PARAMETERS
Chlorides
Calculated1
Sulfates
Calculated1
Total Dissolved Solids (TDS)
Calculated1
Aluminum
Calculated1
						  (2002)
Iron
Calculated1
						  (3002)
Manganese
Calculated1
						  (502)
5. IPR BENCHMARKS FOR NUTRIENTS
Total Nitrogen
8 mg/L monthly average; 12 mg/L daily maximum
Total Phosphorus
0.2 mg/L monthly average; 0.3 mg/L daily maximum
6. OTHER IPR BENCHMARKS
Foaming Agents
500
1Effluent limitations shall be
				calculated in accordance with OAC 252:628-3-6.
2EPA recommendation for drinking
				water.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 630 - Public Water Supply Operation [Revoked] › Section 252:630-1-1 - Purpose [REVOKED]

Current through Vol. 41, No. 20, July 1, 2024
Added at 11 Ok Reg 789,
				eff 1-1-93 (emergency); Added at 11 Ok Reg 2139, eff 5-26-94; Revoked at 17 Ok
				Reg 1971, eff 6-12-00
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 630 - Public Water Supply Operation [Revoked] › Section 252:630-1-2 - Definitions [REVOKED]

Current through Vol. 41, No. 20, July 1, 2024
Added at 11 Ok Reg 789,
				eff 1-1-93 (emergency); Added at 11 Ok Reg 2139, eff 5-26-94; Amended at 14 Ok
				Reg 1673, eff 6-2-97; Revoked at 17 Ok Reg 1971, eff
				6-12-00
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 630 - Public Water Supply Operation [Revoked] › Section 252:630-1-3 - Standards of inorganic and organic chemical, physical, radio-chemical, and microbiological quality [REVOKED]

Current through Vol. 41, No. 20, July 1, 2024
Added at 11 Ok Reg 789,
				eff 1-1-93 (emergency); Added at 11 Ok Reg 2139, eff 5-26-94; Amended at 14 Ok
				Reg 1673, eff 6-2-97; Revoked at 17 Ok Reg 1971, eff
				6-12-00
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 630 - Public Water Supply Operation [Revoked] › Section 252:630-1-4 - Analytical methods for assessing compliance with maximum allowable levels [REVOKED]

Current through Vol. 41, No. 20, July 1, 2024
Added at 11 Ok Reg 789,
				eff 1-1-93 (emergency); Added at 11 Ok Reg 2139, eff 5-26-94; Amended at 14 Ok
				Reg 1673, eff 6-2-97; Revoked at 17 Ok Reg 1971, eff
				6-12-00