reglab/statecodes huggingface dataset:
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 5 - STATISTICAL METHOD › Section 252:515-9-52 - Statistical analysis plan

Current through Vol. 41, No. 20, July 1, 2024
A statistical analysis plan shall be approved by the DEQ
					 before entering into detection monitoring.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 5 - STATISTICAL METHOD › Section 252:515-9-53 - Statistical method performance standards

Current through Vol. 41, No. 20, July 1, 2024
Any statistical method chosen shall comply with the
					 following performance standards, as appropriate.
(1)
Distribution of parameters.
The statistical method used to evaluate groundwater monitoring data shall be
				  appropriate for the distribution of chemical parameters or hazardous
				  constituents.
(A) If the distribution of the
				  chemical parameters or hazardous constituents is shown to be inappropriate for
				  a normal theory test, then the data should be transformed or a
				  distribution-free theory test should be used.
(B) If the distributions for the constituents
				  differ, more than one statistical method may be needed.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 5 - STATISTICAL METHOD › Section 252:515-9-54 - Approved statistical methods

Current through Vol. 41, No. 20, July 1, 2024
One of the following statistical methods shall be used to
					 evaluate groundwater monitoring data for each chemical parameter and hazardous
					 constituent:
(1) a parametric analysis
				  of variance (ANOVA) followed by multiple comparisons procedures to identify
				  statistically significant evidence of contamination. The method must include
				  estimation and testing of the contrasts between each compliance well's mean and
				  the background mean levels for each constituent;
(2) an ANOVA based on ranks followed by
				  multiple comparisons procedures to identify statistically significant evidence
				  of contamination. The method must include estimation and testing of the
				  contrasts between each compliance well's median and the background median
				  levels for each constituent;
(3) a
				  tolerance or prediction interval procedure in which an interval for each
				  constituent is established from the distribution of the background data, and
				  the level of each constituent in each compliance well is compared to the upper
				  tolerance or prediction limit;
(4)
				  a control chart approach that gives control limits for each constituent;
				  or
(5) another statistical test
				  method may be approved by the DEQ if it meets the performance standards of OAC
				  252:515-9-53.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 7 - DETECTION MONITORING › Section 252:515-9-71 - Detection monitoring required

Current through Vol. 41, No. 20, July 1, 2024
Upon completion of background monitoring, detection
					 monitoring shall begin for the constituents listed in OAC
					 252:515-9-31(d),
					 unless alternative constituents are approved in accordance with OAC
					 252:515-9-72.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 7 - DETECTION MONITORING › Section 252:515-9-72 - Revisions to monitoring constituents

Current through Vol. 41, No. 20, July 1, 2024
(a)
Groundwater quality
				  constituents.
During detection monitoring, the DEQ may approve an
				  alternative list of groundwater quality constituents upon successful
				  demonstration that the alternative list of constituents will detect changes in
				  groundwater quality due to the presence of the facility.
(b)
Volatile and semi-volatile
				  organics.
During detection monitoring, the DEQ may approve deletion of
				  any of the volatile or semi-volatile organic constituents of the approved
				  groundwater monitoring program upon successful demonstration that the removed
				  constituents are not reasonably expected to be in or derived from the waste
				  contained in the site.
(c)
Heavy metals.
During detection monitoring, the DEQ may approve the
				  use of an alternative list of indicator constituents, in lieu of some or all of
				  the heavy metal constituents of the approved groundwater monitoring program, if
				  the alternative constituents provide a reliable indication of inorganic
				  releases from the disposal facility to the groundwater. The use of an
				  alternative of indicator constituents shall be based on:
(1) the types, quantities, and concentrations
				  of constituents in wastes managed at the facility;
(2) the mobility, stability, and persistence
				  of waste constituents or their reaction products in the unsaturated zone
				  beneath the facility;
(3) the
				  detectability of indicator parameters, waste constituents, and reaction
				  products in the ground water; and
(4) the concentration or values and
				  coefficients of variation of monitoring constituents in the groundwater
				  background.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 7 - DETECTION MONITORING › Section 252:515-9-73 - Monitoring frequency

Current through Vol. 41, No. 20, July 1, 2024
(a)
Semi-annual monitoring required.
Groundwater from each monitoring
				  well shall be sampled and analyzed at least semi-annually during the active
				  life of the facility and any required post-closure monitoring period.
(b)
Alternative frequency
				  authorized.
The DEQ may, on a case-by-case basis, approve alternative
				  sampling and analysis frequencies in the approved detection monitoring program.
(1)
All constituents.
An
				  alternative frequency for repeated sampling and analysis for all constituents
				  may be approved. The following shall be considered:
(A) lithology of the aquifer and unsaturated
				  zone;
(B) hydraulic conductivity of
				  the aquifer and unsaturated zone;
(C) groundwater flow rates;
(D) minimum distance between upgradient edge
				  of the facility unit and downgradient monitoring well screen; and
(E) resource value of the aquifer.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 7 - DETECTION MONITORING › Section 252:515-9-74 - Statistical analysis

Current through Vol. 41, No. 20, July 1, 2024
(a)
60-day
				  deadline.
Except as provided for in (f) of this Section, within 60 days
				  after sampling:
(1) a statistical analysis
				  shall be performed on the groundwater monitoring results to determine whether
				  there has been a statistically significant increase over background values at
				  each monitoring well; and
(2) the
				  groundwater monitoring results and the results of the statistical evaluation
				  shall be submitted to the DEQ.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 9 - ASSESSMENT MONITORING › Section 252:515-9-91 - Assessment monitoring required

Current through Vol. 41, No. 20, July 1, 2024
(a)
Land disposal facilities.
Except as provided in (b) of this
				  Section, an approved assessment monitoring program meeting the requirements of
				  this Part must be initiated whenever a confirmed statistically significant
				  increase over background has been detected for one or more of the constituents
				  analyzed in the detection monitoring program.
(b)
C&D landfills.
An
				  approved assessment monitoring program meeting the requirements of this Part
				  must be initiated whenever trend analysis demonstrates a significant increase
				  over background for one or more of the constituents analyzed in the detection
				  monitoring program.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 9 - ASSESSMENT MONITORING › Section 252:515-9-92 - Assessment monitoring frequency

Current through Vol. 41, No. 20, July 1, 2024
The DEQ shall specify the frequency of sampling events in
					 the assessment monitoring program, but in no case shall the frequency be less
					 than annually.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 9 - ASSESSMENT MONITORING › Section 252:515-9-93 - Required constituents

Current through Vol. 41, No. 20, July 1, 2024
(a) Groundwater
				  shall be sampled and analyzed for the groundwater quality constituents of
				  252:515-9-31(d)
				  as well as all constituents identified in Appendix C of this Chapter.
(b) The DEQ may approve requests to reduce or
				  modify the constituents to be analyzed during the assessment monitoring
				  program. Constituents shall not be reduced or modified until approved by the
				  DEQ.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 9 - ASSESSMENT MONITORING › Section 252:515-9-94 - Minimum number of samples

Current through Vol. 41, No. 20, July 1, 2024
(a)
Minimum requirements.
Groundwater samples shall be collected and
				  analyzed, as follows:
(1) during each
				  sampling event, one sample from each downgradient well; and
(2) a minimum of four quarterly samples over
				  one full year, or a number and frequency consistent with the appropriate
				  statistical procedures and performance standards in the facility statistical
				  analysis plan in 9-52 of this Subchapter, from each upgradient and downgradient
				  well to establish background (unless already established) for any Appendix C
				  constituents detected.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 9 - ASSESSMENT MONITORING › Section 252:515-9-95 - Actions required

Current through Vol. 41, No. 20, July 1, 2024
(a)
Initial
				  actions.
After obtaining the results from the initial or subsequent
				  sampling events required by this Part, the owner/operator must:
(1) within 14 days, notify the DEQ in
				  writing, and place a notice in the operating record, identifying the
				  constituents that have been detected;
(2) within 90 days, and on at least a
				  semi-annual basis thereafter:
(A) resample all
				  wells;
(B) conduct analyses for all
				  constituents in the detection monitoring program and any other constituents
				  specified by the DEQ in accordance with OAC
				  252:515-9-93;
(C) notify the DEQ in writing and record the
				  concentrations in the operating record; and
(D) establish background concentrations for
				  any constituents detected pursuant to OAC
				  252:515-9-93
				  or (B) of this paragraph.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 9 - ASSESSMENT MONITORING › Section 252:515-9-96 - Groundwater protection standard

Current through Vol. 41, No. 20, July 1, 2024
(a)
MCL established.
The maximum contaminant level (MCL) promulgated
				  under the Safe Drinking Water Act shall be the groundwater protection standard
				  for each Appendix A and C constituent detected in the groundwater.
(b)
MCL not established.
If MCL
				  has not been established under the Safe Drinking Water Act for a particular
				  constituent, the background level of the constituent shall be the groundwater
				  protection standard.
(c)
Background above MCL.
If background level of a particular
				  constituent is above the established MCL, or appropriate health-based levels if
				  no MCL has been established, the background level shall be the groundwater
				  protection standard.
(1)
Published
				  health-based level.
For the purposes of this Subsection, the
				  health-based level is a concentration that would result in an increased risk of
				  no greater than 1x 10 
				  -5 for carcinogens or a Hazard Index
				  of < 1 for non-carcinogens as calculated by procedures specified in the most
				  recent health-based levels publication by the EPA.
(2)
Health-based level not
				  listed.
The DEQ shall be consulted if a health-based level is not listed
				  for a particular constituent.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 11 - ASSESSMENT OF CORRECTIVE MEASURES › Section 252:515-9-111 - Assessment of corrective measures required

Current through Vol. 41, No. 20, July 1, 2024
(a)
Initiation.
Assessment of
				  corrective measures must be initiated within 90 days of finding that any of the
				  constituents monitored in the assessment monitoring program have been detected
				  at a statistically significant level exceeding the groundwater protection
				  standards.
(b)
Completion.
The assessment of corrective measures must be
				  completed within a reasonable period of time as determined by the
				  DEQ.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 11 - ASSESSMENT OF CORRECTIVE MEASURES › Section 252:515-9-112 - Continued monitoring

Current through Vol. 41, No. 20, July 1, 2024
During the assessment of corrective measures, monitoring in
					 accordance with the approved assessment monitoring program must
					 continue.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 11 - ASSESSMENT OF CORRECTIVE MEASURES › Section 252:515-9-113 - Public notice

Current through Vol. 41, No. 20, July 1, 2024
(a)
Public
				  meeting required.
Prior to the selection of a remedy, the results of the
				  corrective measures assessment must be discussed in a public meeting.
(b)
Mail notifications required.
By certified mail, return receipt requested, notice of the public meeting shall
				  be given at least 30 calendar days prior to the date of the meeting to the
				  following:
(1) all persons who own the land
				  or minerals or who reside on the land that directly overlies any part of the
				  plume of contamination and within one year time of travel if contaminants have
				  migrated off-site; and
(2) boards
				  of County Commissioners, incorporated municipalities, rural water districts and
				  conservation districts within a three-mile radius of the facility.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 13 - SELECTION OF REMEDY › Section 252:515-9-131 - Proposed remedy

Current through Vol. 41, No. 20, July 1, 2024
Within 60 days of the public meeting, and based on the
					 results of the corrective measures assessment, a proposed remedy shall be
					 submitted to the DEQ for approval and a copy of the proposed and approved
					 remedies placed in the operating record.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 13 - SELECTION OF REMEDY › Section 252:515-9-132 - Remedy requirements

Current through Vol. 41, No. 20, July 1, 2024
The proposed remedy must:
(1) be protective of human health and the
				  environment;
(2) attain the
				  groundwater protection standard of OAC
				  252:515-9-96;
(3) control the source(s) of releases to
				  reduce or eliminate, to the maximum extent practicable, further releases of the
				  constituents into the environment; and
(4) include a schedule for initiating and
				  completing remedial activities. Such a schedule must require the initiation of
				  remedial activities within a reasonable period of time as determined by the
				  DEQ.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 13 - SELECTION OF REMEDY › Section 252:515-9-133 - No action

Current through Vol. 41, No. 20, July 1, 2024
The DEQ may approve a recommendation that no action is
					 necessary if it can be demonstrated that:
(1) the groundwater is also contaminated by
				  substances that have originated from a source other than the facility and those
				  substances are present in concentrations such that cleanup of the release from
				  the facility would provide no significant reduction in risk to actual or
				  potential receptors;
(2) the
				  contaminated groundwater:
(A) is not currently
				  or reasonably expected to be a useable source of water; and
(B) is not hydraulically connected with
				  waters to which the hazardous constituents are migrating, or are likely to
				  migrate, in concentrations that would exceed the groundwater protection
				  standards;
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 13 - SELECTION OF REMEDY › Section 252:515-9-134 - Other measures

Current through Vol. 41, No. 20, July 1, 2024
In the event the DEQ approves a no-action recommendation,
					 source control or other measures may be required to eliminate or minimize
					 further releases to the groundwater, to prevent exposure to the groundwater, or
					 to remediate the groundwater to concentrations that are technically practicable
					 and significantly reduce threats to human health or the
					 environment.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 13 - SELECTION OF REMEDY › Section 252:515-9-135 - Financial assurance

Current through Vol. 41, No. 20, July 1, 2024
Financial assurance shall be established in accordance with
					 OAC
					 252:515-27-2(b).
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 15 - IMPLEMENTATION OF CORRECTIVE ACTION › Section 252:515-9-151 - Required actions for implementation of corrective action

Current through Vol. 41, No. 20, July 1, 2024
Based on the schedule for remedial activities approved in
					 accordance with OAC
					 252:515-9-132(4):
(1) a groundwater monitoring program must be
				  established and implemented as specified by the DEQ;
(2) the corrective action remedy selected
				  must be implemented;
(3) interim
				  measures necessary to ensure the protection of human health and the environment
				  must be taken; and
(4) alternate
				  measures for control, removal or decontamination of the sources of
				  contamination must be implemented.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 15 - IMPLEMENTATION OF CORRECTIVE ACTION › Section 252:515-9-152 - Interim measures

Current through Vol. 41, No. 20, July 1, 2024
(a)
Objectives and performance.
The interim measures required by OAC
				  252:515-9-151(3)
				  should, to the greatest extent practicable, be consistent with the objectives
				  of and contribute to the performance of any remedy that may be required by the
				  DEQ.
(b)
Considerations.
Interim measures taken shall take into
				  consideration:
(1) the time required to
				  develop and implement a final remedy;
(2) actual or potential exposure of nearby
				  populations or environmental receptors to hazardous constituents;
(3) actual or potential contamination of
				  drinking water supplies or sensitive ecosystems;
(4) further degradation of the groundwater
				  that may occur if remedial action is not initiated expeditiously;
(5) weather conditions that may cause
				  hazardous constituents to migrate or be released;
(6) risks of fire or explosion, or potential
				  for exposure to hazardous constituents as a result of an accident or failure of
				  a container or handling system; and
(7) other situations that may pose threats to
				  human health and the environment.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 15 - IMPLEMENTATION OF CORRECTIVE ACTION › Section 252:515-9-153 - Management of wastes generated

Current through Vol. 41, No. 20, July 1, 2024
Solid wastes generated pursuant to the implementation of a
					 remedy shall be managed in accordance with the NHIW management requirements of
					 Subchapter 31 of this Chapter, or the hazardous waste management requirements
					 of OAC 252:205 if they are hazardous.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 15 - IMPLEMENTATION OF CORRECTIVE ACTION › Section 252:515-9-154 - Compliance cannot be achieved

Current through Vol. 41, No. 20, July 1, 2024
If compliance with the remedy requirements of OAC
					 252:515-9-132
					 cannot be practically achieved with any currently available methods:
(1) a certification from a qualified
				  groundwater scientist stating such shall be submitted to the DEQ for
				  approval;
(2) proposed alternative
				  methods shall be submitted to the DEQ in writing within 14 days of
				  certification by the qualified groundwater scientist, and a copy placed in the
				  operating record; and
(3) alternate
				  measures approved by the DEQ shall be implemented to control exposure of humans
				  or the environment to residual contamination.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 15 - IMPLEMENTATION OF CORRECTIVE ACTION › Section 252:515-9-155 - Remedies complete

Current through Vol. 41, No. 20, July 1, 2024
The remedies shall be considered complete when the
					 groundwater monitoring program demonstrates, for three consecutive years, that
					 the groundwater has been remediated in accordance with the levels approved in
					 the corrective action plan and when all actions required to complete the remedy
					 have been satisfied.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 9 - Groundwater Monitoring/Corrective Action › Part 15 - IMPLEMENTATION OF CORRECTIVE ACTION › Section 252:515-9-156 - Certification of completion

Current through Vol. 41, No. 20, July 1, 2024
Upon completion of the remedy, a certification that the
					 remedy has been completed in compliance with the requirements of this Part must
					 be submitted to the DEQ. Such certification must be signed by the
					 owner/operator and by a qualified groundwater scientist, and approved by the
					 DEQ.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-1 - Applicability

Current through Vol. 41, No. 20, July 1, 2024
This Subchapter applies to all land disposal
					 facilities.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-2 - Liner design

Current through Vol. 41, No. 20, July 1, 2024
(a)
C&D
				  landfills.
Waste disposal areas of new C&D landfills, and expansions
				  of waste disposal areas of existing C&D landfills constructed after the
				  effective date of this Chapter, shall, as a minimum, be constructed with:
(1) a reconstructed clay liner meeting the
				  requirements of Part 3 of this Subchapter; or
(2) an in-situ liner meeting the requirements
				  of Part 7 of this Subchapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-3 - Separation from groundwater

Current through Vol. 41, No. 20, July 1, 2024
(a)
All land disposal facilities.
Liner systems shall be designed and
				  constructed to maintain a minimum five-foot vertical separation between the
				  highest groundwater elevation and the lowermost surface on which waste,
				  including leachate, will be placed.
(b)
C&D landfills with in-situ
				  liners.
C&D landfills utilizing an in-situ liner shall be designed
				  to maintain a minimum fifteen-foot vertical separation between the highest
				  groundwater elevation and the lowermost surface on which waste will be
				  placed.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-4 - Quality assurance/quality control (QA/QC)

Current through Vol. 41, No. 20, July 1, 2024
(a)
Plan required.
A QA/QC plan
				  shall be included in the permit application to demonstrate the liner system
				  will be installed in accordance with this Subchapter and the approved design
				  plans. The plan shall include all information required for the applicable liner
				  design, placement, construction, and testing.
(1)
QA/QC plan technical
				  information.
The QA/QC plan shall ensure compliance with this Subchapter
				  and contain the information on pages 1 through 173, inclusive, of EPA Technical
				  Guidance Document: Quality Assurance and Quality Control for Waste Containment
				  Facilities (EPA/600/R-93/182), September, 1993.
(2)
QA/QC plan revisions.
Prior
				  to construction of a disposal cell, the owner/operator must review the QA/QC
				  plan and, if necessary, revise the plan to ensure liner design and construction
				  will be in accordance with the minimum requirements of this
				  Subchapter.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-5 - Notification of construction

Current through Vol. 41, No. 20, July 1, 2024
(a)
Notification required.
The DEQ shall be notified at least two
				  weeks before liner construction begins. The notification shall:
(1) define the area to be
				  constructed;
(2) include the names
				  of the contractors and the QA and QC officials; and
(3) include results of the pre-construction
				  tests identified in OAC
				  252:515-11-32(a)
				  when constructing a reconstructed clay liner.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-6 - Liner Installation and Testing (LIT) report

Current through Vol. 41, No. 20, July 1, 2024
(a)
LIT report.
At the
				  conclusion of liner construction, an LIT report shall be submitted to the DEQ
				  to document the liner system was installed in accordance with the requirements
				  of this Subchapter and the approved plans.
(b)
LIT report details.
The
				  report shall include:
(1) summaries of all
				  construction activities;
(2)
				  testing data sheets and summaries;
(3) changes from design and material
				  specifications; and
(4) all QA/QC
				  documentation.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 1 - GENERAL PROVISIONS › Section 252:515-11-7 - DEQ authorization required

Current through Vol. 41, No. 20, July 1, 2024
Waste shall not be placed on a new liner system until the
					 DEQ inspects the liner system and provides written authorization to commence
					 disposal.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-31 - Liner construction standards

Current through Vol. 41, No. 20, July 1, 2024
(a)
MSWLFs, NHIW landfills and other land disposal facilities.
The
				  reconstructed clay liner portion of the composite liner system must:
(1) be at least two feet thick with a
				  hydraulic conductivity no greater than 1.0 x 10-7
				  cm/sec; and
(2) meet the
				  requirements of and be constructed in accordance with this Part and the
				  approved QA/QC plan.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-32 - Preconstruction tests

Current through Vol. 41, No. 20, July 1, 2024
(a)
Required
				  tests.
The following tests are required on all soils to be used in liner
				  construction.
(1) soil classification (ASTM
				  D2487);
(2) particle-size analysis
				  of soil (ASTM D422);
(3) sieve
				  analysis for the following screens: #4, #10, #40, #200;
(4) percent fines (#200 sieve) (ASTM
				  D1140);
(5) Atterberg limits (ASTM
				  D4318);
(6) moisture content using:
(A) the oven drying method (ASTM D2216);
				  or
(B) the microwave drying method
				  (ASTM D4643);
(7)
				  moisture-density relationship, using either:
(A) the standard proctor density (ASTM D698);
				  or
(B) the modified proctor density
				  (ASTM D1557);
(8)
				  hydraulic conductivity using ASTM D5084 or any other method approved by the
				  DEQ.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-33 - Liner soil standards

Current through Vol. 41, No. 20, July 1, 2024
Soils shall meet a majority of the following standards.
					 Minor deviations may be proposed so long as the hydraulic conductivity standard
					 in OAC
					 252:515-11-31
					 is satisfied.
(1)
Plasticity
				  index (ASTM D4318).
Plasticity index shall be greater than or equal to
				  10%.
(2)
Liquid limit (ASTM
				  D4318).
Liquid limit shall be greater than or equal to 24%.
(3)
Percent fines (ASTM D422).
Percent fines passing #200 mesh sieve shall be greater than or equal to
				  30%.
(4)
Gravel amount (ASTM
				  D422).
The amount of gravel (dry-weight percentage retained on the No. 4
				  sieve) shall be less than or equal to 20%.
(5)
Particle size.
Particle size
				  shall be less than one inch in diameter.
(6)
Water content.
After the
				  soil is compacted, the water content of the soil shall be equal to or greater
				  than optimum.
(7)
Soil
				  density.
After the soil is compacted, the minimum density of the soil
				  shall be greater than or equal to:
(A) 95% of
				  the standard proctor density (ASTM D698); or
(B) 90% of the modified proctor density (ASTM
				  D1557).
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-34 - Subgrade preparation

Current through Vol. 41, No. 20, July 1, 2024
The upper six inches of the surface on which the liner is
					 to be placed must be compacted to a minimum standard proctor density (ASTM
					 D698) of 90%.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-35 - Construction

Current through Vol. 41, No. 20, July 1, 2024
(a)
Internal side slopes.
The
				  internal side slopes of disposal areas to be lined with an FML must be no
				  steeper than 3:1 unless slope stability calculations support an alternative
				  design.
(b)
Moisture
				  content.
If it is necessary to moisten the soil to meet the requirements
				  of
				  252:515-11-33(6),
				  the water shall be distributed equally throughout the lift. Moisture tests
				  shall be performed after the water has absorbed into the clay.
(c)
Placement and compaction.
The liner shall be constructed in the following manner:
(1) scarify the surface on which the lift is
				  to be placed to a nominal depth of approximately one inch;
(2) place a lift of soil at a loose depth of
				  nine inches (9") or less;
(3)
				  compact and remold the lift to a depth of six inches (6") or less with a
				  heavy-footed roller equipped with feet that fully penetrate the loose lift of
				  soil;
(4) remove all rocks,
				  cobbles, roots and other foreign objects over one inch in diameter, as well as
				  all surface rocks regardless of size if an FML is to be laid;
(5) inspect for flaws, cracks and other
				  defects; and
(6) make needed
				  repairs.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-36 - Construction tests

Current through Vol. 41, No. 20, July 1, 2024
(a) During liner
				  construction, moisture and density tests shall be performed on each compacted
				  lift at a rate of at least three per acre for each approximately six-inch
				  compacted lift. A minimum of two tests shall be performed on the bottom and one
				  on sideslope areas.
(b) One of the
				  following methods shall be used:
(1) nuclear
				  density method using (ASTM D2922), to include the conventional oven drying
				  method (ASTM D2216) performed on every ten samples;
(2) drive-cylinder method (ASTM
				  D2937);
(3) rubber balloon method
				  (ASTM D2167);
(4) sand-cone method
				  (ASTM D1556);
(5) microwave drying
				  method (ASTM D4643); or
(6)
				  conventional oven drying method (ASTM D2216).
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-37 - Verification tests

Current through Vol. 41, No. 20, July 1, 2024
(a)
Verification of thickness.
After installation, liner thickness
				  shall be verified on a 100-foot grid.
(b)
Visual inspection.
The liner
				  shall be visually inspected to evaluate its integrity.
(c)
Hydraulic conductivity.
Hydraulic conductivity tests shall be performed in the top 12 inches of the
				  finished liner.
(1)
Locations.
At least one test per acre shall be performed on the sideslopes and two per
				  acre on the bottom, at DEQ approved locations.
(2)
Test methods.
Tests shall be
				  conducted using one of the following methods:
(A) laboratory testing of soil samples using
				  ASTM D5084. Soil samples for an in-situ laboratory test shall be retrieved in
				  accordance with ASTM D1587;
(B)
				  field testing using the sealed double ring infiltrometer test (ASTM D5093);
				  or
(C) any other method approved in
				  advance by the DEQ.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-38 - Repair and/or replacement

Current through Vol. 41, No. 20, July 1, 2024
If the liner fails any tests, it shall be repaired or
					 replaced and retested. All repairs shall be certified by the QA officer and
					 documented in the LIT report.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 3 - RECONSTRUCTED CLAY LINER › Section 252:515-11-39 - Liner protection

Current through Vol. 41, No. 20, July 1, 2024
(a)
General
				  requirements.
After the liner is constructed, it shall be protected from
				  desiccation, cracking, frost damage or damage from equipment.
(b)
MSWLF, NHIW, and other land
				  disposal facilities.
After construction, the QA officer shall certify
				  that the moisture content of OAC
				  252:515-11-33(6)
				  was maintained in the liner until placement of the FML.
(c)
C&D landfills.
After
				  construction, the liner shall be protected by a 12-inch soil protective layer.
				  The QA officer shall certify that the moisture content of OAC
				  252:515-11-33(6)
				  was maintained in the liner until placement of the protective cover.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-51 - FML materials

Current through Vol. 41, No. 20, July 1, 2024
(a)
Materials.
The FML shall be manufactured of first-quality resin,
				  compounded and manufactured specifically for the purpose intended.
(b)
Defects.
The FML shall be
				  free of holes, blisters, undispersed raw materials or any sign of contamination
				  by foreign matter. Any defect shall be repaired in accordance with
				  manufacturer's recommendations.
(c)
Thickness.
The FML thickness shall be determined considering the
				  manufacturer's allowable tensile strength and tear and puncture resistance of
				  the liner material, the maximum potential height of the waste pile, and the
				  anticipated compacted waste density (lb/ft3 or
				  lb/yd3).
(1) A
				  safety factor of two shall be used in this determination.
(2) The thickness shall be no less than 60
				  mils for HDPE and 30 mils for other types of FMLs.
(3) The DEQ may require a thicker FML to
				  resist various stresses.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-52 - QA/QC plan

Current through Vol. 41, No. 20, July 1, 2024
The following information shall be provided in the QA/QC
					 plan for FMLs:
(1) manufacturer's
				  written instructions for the storage, handling, installation, and seaming of
				  the FML, including relevant warranty conditions; and
(2) a narrative description of any variations
				  from the manufacturer's written instructions proposed by the
				  owner/operator.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-53 - FML care

Current through Vol. 41, No. 20, July 1, 2024
(a)
Handling.
The FML must be handled in a manner to minimize wrinkles
				  and compensate for those that cannot be prevented. The following must be
				  prevented:
(1) damage by such activities as
				  handling, traffic, smoking, and use of equipment and tools;
(2) scratching or crimping of panels during
				  unrolling;
(3) damage of the
				  underlying liner; and
(4) uplifting
				  of in-place panels by the wind.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-54 - Anchor trench construction

Current through Vol. 41, No. 20, July 1, 2024
(a)
Length of runout.
The length of runout and the depth of the anchor
				  trench must be designed for the thickness and allowable stress of the
				  FML.
(b)
Construction details
				  required.
Anchor trench details shall be provided on maps and/or
				  drawings as required in Subchapter 3 of this Chapter.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-55 - Reconstructed clay liner

Current through Vol. 41, No. 20, July 1, 2024
(a)
Requirements.
The reconstructed clay liner on which the FML is
				  installed must:
(1) be of uniform grade with
				  no ruts; and
(2) meet the liner
				  construction requirements of OAC
				  252:515-11-35(c)(4).
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-56 - Notification of installation

Current through Vol. 41, No. 20, July 1, 2024
(a)
QA certification required.
Installation of the FML shall not begin
				  until the QA officer certifies that all required reconstructed clay liner tests
				  have been completed for the area on which the FML is to be laid.
(b)
DEQ notification required.
The DEQ shall be notified at least 48 hours before installation of the
				  FML.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-57 - FML installation

Current through Vol. 41, No. 20, July 1, 2024
(a)
Handling.
The FML must be handled to avoid bridging or stressed
				  conditions in the material.
(b)
Slack allowance.
Slack allowance shall be provided to allow for
				  shrinkage during installation.
(c)
Placement.
The FML shall be installed in direct and uniform
				  contact with the reconstructed clay liner.
(d)
Temperature.
The FML shall
				  be seamed only when the ambient air temperature is between 40o
					 F and 104o F, unless pre-construction
				  weld tests for the seaming demonstrate adequate results at other
				  temperatures.
(e)
Wind and
				  rain.
The FML shall not be installed when there is excessive moisture or
				  wind.
(f)
Overlap.
Panels shall have a minimum four-inch finished seam overlap, unless the
				  manufacturer specifies a larger overlap.
(g)
Orientation of seams.
Seams
				  shall be oriented down the slope, not across it.
(h)
Field seam restrictions.
In
				  corners and odd-shaped geometric locations, the number of field seams shall be
				  minimized.
(1) No base T-seam shall be closer
				  than five feet to the toe of the slope.
(2) Seams shall be aligned with the least
				  possible number of wrinkles and fishmouths.
(3) If a fishmouth is found, it shall be
				  relieved and cap-stripped.
(4)
				  Field seaming must be performed by a hot shoe fusion welder, an extrusion
				  welder, or an alternative method approved by the DEQ prior to use in the
				  field.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-58 - Field seam tests

Current through Vol. 41, No. 20, July 1, 2024
(a)
Frequency.
The installer shall make a trial weld at the beginning
				  of every day and every five working hours. Each seamer shall make at least one
				  trial seam per day for each seaming device used during that day. Additional
				  trial seams may be required.
(b)
Non-destructive tests.
The installer shall perform vacuum,
				  pressure or air lance tests over the full length of all field seams. Vacuum
				  tests must be observed for a minimum of five seconds.
(c)
Destructive seam laboratory
				  tests.
Samples of field welds shall be collected at least every 500 feet
				  for laboratory destructive testing. Tests to be completed include:
(1) shear test by method ASTM D882;
				  and
(2) peel test by method ASTM
				  D413, or equivalent.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-59 - Protection of FML

Current through Vol. 41, No. 20, July 1, 2024
(a)
Equipment.
Equipment shall not be driven on the FML unless such
				  equipment is specifically designed for FML installation.
(b)
Material placement.
Drainage
				  layer or protective cover material shall not be pushed across the FML during
				  placement.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 5 - FLEXIBLE MEMBRANE LINER › Section 252:515-11-60 - Quality assurance

Current through Vol. 41, No. 20, July 1, 2024
Before the drainage layer material of the leachate
					 collection system is placed over the FML, all destructive and non-destructive
					 testing must be completed and approved by the QA officer.
Added at 20 Ok Reg
					 1151, eff 6-1-03
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 7 - IN-SITU LINER › Section 252:515-11-71 - Liner construction standards

Current through Vol. 41, No. 20, July 1, 2024
(a)
Thickness and permeability.
An in-situ liner installed at a
				  C&D landfill must:
(1) be at least five
				  feet thick with a hydraulic conductivity no greater than 1.0 x
				  10-5 cm/sec; and
(2) meet the requirements of and be
				  constructed in accordance with this Part and the approved QA/QC plan.
Oklahoma Administrative Code › Title 252 - Department of Environmental Quality › Chapter 515 - Management of Solid Waste › Subchapter 11 - Liner Design › Part 7 - IN-SITU LINER › Section 252:515-11-72 - Soil classification tests

Current through Vol. 41, No. 20, July 1, 2024
(a)
Soil testing required.
Soils to be used as in-situ liner material
				  shall be tested in accordance with
				  252:515-11-32.
(b)
Hydraulic conductivity
				  requirements.
At least three hydraulic conductivity tests shall be
				  performed per acre on soil samples for each classified soil/rock layer that
				  will form the sides and bottom of the proposed disposal area.
(c)
Use of soil test results.
The results of the tests required in this Section shall be used to establish
				  the design excavation depths for the landfill. The proposed excavation depths
				  shall be depicted on the cross sections.
Added at 20 Ok Reg
					 1151, eff 6-1-03