reglab/statecodes huggingface dataset:
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-1 - Authority

Current through July 13, 2024
This regulation is promulgated pursuant to the Wyoming
				  Environmental Quality Act. Specifically,
				  W.S.
				  35-11-302(a) (xi) stipulates
				  that the administrator shall develop standards for subdivision applications
				  submitted to the department under W.S. W.S.
				  W.S.
				  18-5-306.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-2 - Applicability

Current through July 13, 2024
These regulations shall apply to all subdivision permits as
				  required by
				  W.S.
				  18-5-305 and 306 and submitted to the
				  department upon or after the effective date this rule.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-3 - Definitions

Current through July 13, 2024
(a) The definitions in Section
										35-11-103(a) and (c) of the
				Wyoming Environmental Quality Act apply to this chapter. For example:
(i) "Administrator" means the administrator
				of the Water Quality Division of the department.
(ii) "Department" means the Department of
				Environmental Quality established by the Wyoming Environmental Quality
				Act;
(iii) "Director" means the
				director of the Department of Environmental Quality;
(iv) "Public water supply" means any water
				supply as defined in W.S. W.S.
				W.S.
				35-11-103(c)
				(viii).
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-4 - Submittal and Processing of Subdivision Applications

Current through July 13, 2024
(a) Submittal of subdivision applications.
				Prior to subdivision permit approval by the board of county commissioners, and
				pursuant to
				W.S.
				18-5-306(c) and 307, the
				county, subdivider, or county planning and zoning commission shall send three
				(3) copies of the portions of the application containing evaluations of the
				proposed sewage system and water supply system to the department for review of
				the safety and adequacy of the proposed sewage system and proposed water supply
				system.
(b) Processing of
				applications
(i) Pursuant to W.S. W.S.
				W.S.
				18-5-306(c):
(A) The department may request assistance
				from the state engineer, the Wyoming water development office and any other
				state agency or county governmental entity in preparing its review. Any agency
				or entity requested to assist in the review shall fully cooperate to the extent
				possible with the department and shall furnish the information or
				recommendations requested within the time period specified by the
				department;
(B) The department
				shall file its written comments and recommendations on the application with the
				commission or board within 30 days after receipt of the application. The
				department may extend its review period for an additional 30 days if an
				extension is necessary to complete the review.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-5 - Requirements Applicable to All Applications

Current through July 13, 2024
(a) All
				plans, specifications, reports, maps, and other documentation submitted under
				this chapter must meet or exceed the standards contained within these
				regulations to be deemed complete;
(b) All plans, specifications, reports, maps,
				and other documentation submitted under this chapter shall be signed, sealed,
				and dated, when required, by a licensed professional engineer under W.S. Title
				33, Chapter 29, a licensed professional geologist under W.S. Title 33, Chapter
				41, and by a licensed land surveyor under W.S. Title 33, Chapter 29, as
				applicable.
(c) The administrator
				may, upon review of submitted documentation, modify any, or all, requirements
				of this chapter when:
(i) The subdivision
				includes one or more lots with existing sewage systems, water supply systems,
				or on-lot wells; or
(ii) Holding
				tanks are used to fully contain on-lot sewage.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-6 - Exemptions from Provisions

Current through July 13, 2024
Exemptions to the provisions of this chapter are defined in
				  W.S.
				  18-5-303 and W.S. W.S.
				  W.S.
				  18-5-306.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-7 - Standards for Sewage Systems

Current through July 13, 2024
(a) All
				applications shall contain the following information:
(i) Identification of the type of sewage
				system to serve the subdivision and identification of the entity or entities
				responsible for the design, construction, operation and maintenance of the
				proposed facility;
(ii) An
				assessment of the adequacy of the proposed sewage system in relation to the
				proposed population density of the subdivision and any other existing or
				proposed land and water uses in the vicinity of the subdivision that may affect
				the adequacy of the system; and
(iii) Demonstration that the proposed sewage
				system will meet all county, state and federal standards.
The demonstration shall include, but not be limited to
				  addressing the relationship of the development to any local or state approved
				  water quality management plans established pursuant to Section 201 of the
				  federal Clean Water Act,
				  33 U.S.C. Section
				  1281 and demonstrate no conflict exists with
				  any state approved local wellhead protection plan or local source water
				  protection plan.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-8 - Standards for Water Supply Systems

Current through July 13, 2024
(a) All
				applications shall contain the following information:
(i) Identification of the type of water
				supply system proposed to serve the subdivision and identification of the
				entity or entities responsible for the design, construction, operation and
				maintenance of the proposed facility;
(ii) The estimated average and maximum number
				of gallons per day for the subdivision water supply system;
(iii) Documentation that the proposed water
				supply system will be compatible with and not adversely affected by the sewage
				system proposed for the subdivision or any other sources of pollution within a
				reasonable distance;
(iv) List of
				all surface and groundwater rights which will be used or which may be affected,
				including state engineer application and permit numbers and description of
				expected effects;
(v) Plans for the
				mitigation of water right conflicts resulting from the use of water within the
				proposed subdivision; and
(v) The
				information required by
				W.S.
				18-5-306(a) (xi).
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Section 23-9 - Delegation of Review Authority to Counties

Current through July 13, 2024
(a) Pursuant to
				W.S.
				18-5-306(c), to the extent
				requested by a county government, the administrator of the Water Quality
				Division, with the approval of the director of the Department of Environmental
				Quality, shall delegate authority to the county to:
(i) Review and approve any reports or studies
				required by this chapter and directed at determining the safety and adequacy of
				the proposed sewage or water supply system contained as part of a subdivision
				application;
(ii) Review and
				approve enhanced treatment systems, in accordance with Section
				5, Chapter 11 of Wyoming Water Quality
				Rules and Regulations, that will meet or exceed the applicable standards within
				this chapter;
(iii) Issue
				construction permits as required by W.S. W.S.
				W.S.
				35-11-301(a) (iii),
				and;
(iv) Issue operating permits
				as authorized by W.S.
				W.S.
				35-11-301(a)
				(iii).
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Appendix A - Cumulative Nitrate Loading Analysis

Current through July 13, 2024
In order to calculate the nitrate concentration from multiple
				  septic systems at the down gradient property boundary of the proposed
				  subdivision the following nitrogen mass balance equation (Wehrmann Model) is
				  used. If Co exceeds 10 mg/L NO3-
				  as N, WDEQ recommend to the County Commission that the subdivision not be
				  approved unless modified to achieve the standards within this chapter.
Co=
							 Vb Cb+ Vi
							 Ci+ Vs
							 Cs - Vp Cp
							 / (Vb+ Vi+
							 Vs - Vp)
Where:
Co
= diluted
				  concentration of NO3 as N leaving the subdivision
Vb =
volume of ground
				  water entering the subdivision from upgradient area
Cb
= ambient
				  concentration of NO3- as N contained in the ground water entering the
				  subdivision
Vi =
volume of
				  precipitation infiltrating beneath the subdivision
Ci =
concentration of
				  NO3- as N contained in the infiltrating precipitation
Vs =
volume of septic
				  effluent introduced beneath the subdivision
Cs =
concentration of
				  NO3- as N contained in the septic effluent (assume 40 mg/L for conventional
				  septic systems, and manufacturer specifications (mg/L) for enhanced treatment
				  systems)
Vp =
volume of ground
				  water pumped by wells beneath the subdivision (use only if same aquifer as
Vs
)
Cp =
concentration of
				  nitrate-nitrogen contained in the pumped ground water
Wehrmann, H.A. 1984. Managing Ground Water Nitrate Quality
					 by Mass Balance Modeling in the Rockton-Roscoe Area, Illinois. In Proceedings
					 of the NWWA Eastern Regional Conference on Ground Water Management, National
					 Water Well Association, Dublin, Ohio, pp. 558-587.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 23 - MINIMUM STANDARDS FOR SUBDIVISION APPLICATIONS › Appendix c - Public Water Supply Analysis

Current through July 13, 2024
The following equations are used to calculate the nitrate
				  concentration at a public drinking water supply well from drainfields that fall
				  within the capture zone of the well, as defined below. If Cp exceeds 10 mg/L
				  NO3- as N, WDEQ will
				  recommend to the County Commission that the subdivision not be approved unless
				  modified to achieve the standards within this chapter.
First, calculate the capture zone for the water supply well
				  using the following formula:
Click to View
				  Image
Where:
CFR = Calculated fixed radius of pumping well
Q
= average annual pumping rate
				  (gallons/year)
t
= time of travel (years); assume 2 years
				  unless a steady-state capture zone is calculated.
7.48
= conversion factor
				  (ft3 to gallons)
n
= effective porosity
H
= length of well screen (feet)
pi
= 3.14
Next, the volume of aquifer water flowing beneath a
				  drainfield located within the capture zone is calculated using the following
				  formula:
Qleach
=
(KiA
)7.48*
z
Where:
Qleach
= volume of water flowing beneath the
				  drainfield (gallons/day)
K = hydraulic conductivity (feet/day)
i
= hydraulic gradient
A
= cross-sectional dimensions of drainfield
				  (length x depth); assumed to be 75 feet
long by 30 feet deep.
z
= number of wastewater treatment systems
				  within the CFR
Next, the nitrate concentration beneath the drainfield is
				  calculated by mixing the septic leachate with the aquifer water flowing beneath
				  the drainfield (Qleach) using the following formula:
Cr = ((
Qseptic *Cseptic
) + (
Qleach *
				  Cleach
)) / (
Qseptic + Qleach
)
Where:
Cr
= diluted nitrate concentration beneath
				  the septic drainfield (mg/L)
Qseptic
= discharge of septic (gallons/day)
				  = (300 *z)
Cseptic
= average nitrate concentration of
				  septic leachate (assume 40 mg/L for conventional septic systems; manufacturer
				  specifications (mg/L) for enhanced treatment systems)
Qleach
= volume of water flowing beneath the
				  drainfield (gallons/day)
Cleach
= ambient nitrate concentration in
				  ground water (mg/L)
300 = average daily leachate discharge for a 3 bedroom
				  home
z
= number of wastewater treatment systems
				  within the CFR
Next, the volume of water contained within the well cylinder
				  (from pumping) is calculated using the following equation:
Qwell = n((pi)(HCFR2))*7.48 / 730
Where:
Qwell
= well discharge (gallons/day)
Finally, the concentration of nitrates within the well
				  cylinder is calculated using the following equation:
Cp
=
((Qleach +
				  Qseptic*Cr)+(Qwell*Cwell)) / (Qleach + Qseptic + Qwell)
Where:
Cp
= Concentration of nitrates within the
				  pumping well (mg/L)
Cwell
= ambient nitrate concentration in
				  ground water (mg/L) = Cleach
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-1 - Authority

Current through July 13, 2024
These regulations are promulgated pursuant to Wyoming
				  Statutes (W.S.) §§
									
										35-11-101
				  through 2005, specifically § 313.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-3 - Applicability

Current through July 13, 2024
(a) Construction,
				installation, operation, monitoring, testing, plugging, post-injection site
				care, and modification of any Class VI well shall be allowed only in accordance
				with this Chapter.
(b) This chapter
				applies to all Class VI wells.
(i) This
				Chapter applies to owners, operators, and permittees of Class VI
				wells.
(ii) This Chapter applies to
				any Class I industrial, Class II, or Class V experimental or demonstration
				carbon dioxide injection project that is converted to a Class VI well. A
				permitted Class I, Class II, or Class V injection well may be converted to a
				Class VI well by obtaining a Class VI permit pursuant to this Chapter.
(A) To convert a permitted Class I, Class II,
				or Class V injection well to a Class VI well, the applicant shall:
(I) Apply for a Class VI permit;
(II) Demonstrate to the Administrator that
				the well was engineered and constructed to meet the requirements of Section
				14(a) of this Chapter;
				and
(III) In lieu of meeting the
				requirements of Section
				14(b) and Section
				17(a) of this Chapter,
				demonstrate to the Administrator that the well will ensure protection of USDWs
				and will not endanger any USDW.
(B) After December 10, 2011, owners or
				operators of Class I wells previously permitted for the purpose of geologic
				sequestration and Class V experimental technology wells no longer being used
				for experimental purposes that will continue injection of carbon dioxide for
				the purpose of geologic sequestration shall obtain a Class VI permit.
(C) If the Administrator determines that a
				converted Class I, Class II, or Class V injection well will not endanger any
				USDWs, the Administrator may exempt the well from the requirements of Section
				14(b)(i) -
				(vii) and Section
				17(a)(i)-(v)
				of this Chapter.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-4 - Processing Permits

Current through July 13, 2024
(a) The following
				permit processing procedures are applicable to all Class VI permits:
(i) The applicant shall submit the permit
				application to the Division in a format required by the
				Administrator.
(ii) Within sixty
				(60) days of submission of an application, the Administrator shall make an
				initial determination of completeness. An application shall be determined
				complete when the Administrator receives an application and any supplemental
				information necessary to determine compliance with this Chapter. The
				completeness of any application for a permit shall be judged independently of
				the status of any other permit application or permit for the same facility or
				activity.
(iii) Re-submittal of
				information by an applicant for an incomplete application will restart the
				process described in this Section.
(iv) At the end of any 60-day review period
				where an application is determined complete, the Administrator shall:
(A) Prepare a draft permit for issuance or
				denial;
(B) Prepare a fact sheet on
				the proposed operation;
(C) Provide
				public notice pursuant to Section 27 of this Chapter; and
(D) Notify in writing, the contacts, for any
				states or Tribes provided pursuant to Section
				10(b) (xxxvi) of this
				Chapter.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-5 - Denying Permits

Current through July 13, 2024
(a) The Director
				may deny a permit for any of the following reasons:
(i) The application is incomplete;
(ii) The project, if constructed or operated,
				will violate applicable state surface or groundwater standards;
(iii) The application proposes the
				construction or operation of a project that does not meet the requirements of
				this Chapter;
(iv) The permitted
				facility would be in conflict with or is in conflict with a State-approved
				local wellhead protection plan, State-approved local source water protection
				plan, or State-approved water quality management plan; or
(v) Other justifiable reasons necessary to
				carry out the provisions of the Wyoming Environmental Quality Act.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-6 - Modifying Permits

Current through July 13, 2024
(a) The Director
				may modify a permit when:
(i) Any material or
				substantial alterations or additions to the facility occur after permitting
				that justify the application of different permit conditions;
(ii) Any modification in the operation of the
				facility is capable of causing or increasing pollution in excess of applicable
				standards or permit conditions;
(iii) Information warranting modification is
				discovered after the operation has begun that would have justified the
				application of different permit conditions at the time of permit
				issuance;
(iv) Regulations or
				standards upon which the permit was based changed after the permit was
				issued;
(v) Cause exists for
				termination, as described in this Section, but the Department determines that
				modification is appropriate;
(vi)
				Modification is necessary to comply with applicable statutes, standards, or
				regulations;
(vii) The permit is
				transferred; or
(viii) The
				Administrator determines that permit changes are necessary based on:
(A) Area of review reevaluations under
				Section
				13(c)(i) of this
				Chapter;
(B) Amendments to the
				testing and monitoring plan under Section
				20(b)(xi) of this
				Chapter;
(C) Amendments to the
				injection well-plugging plan under Section 23(c) of this Chapter;
(D) Amendments to the post-injection site
				care and site closure plan under Section 24(a)(iv) of this Chapter;
(E) Amendments to the emergency and remedial
				response plan under Section 25(a) of this Chapter;
(F) A review of monitoring or testing
				results; or
(G) A determination
				that the injectate is a hazardous waste as defined in
				40 CFR §
												261.3.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-7 - Terminating, Revoking, and Reissuing Permits

Current through July 13, 2024
(a) The Director
				may terminate a permit or revoke and reissue a permit for any of the following
				reasons:
(i) Noncompliance with terms and
				conditions of the permit;
(ii)
				Failure in the application or during the issuance process to disclose fully all
				relevant facts, or misrepresentation of any relevant facts at any time;
				or
(iii) A determination that the
				activity threatens human health, safety, or the environment and can only be
				regulated to acceptable levels by a permit modification or
				termination.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-8 - Transferring Permits

Current through July 13, 2024
(a) To transfer a
				permit:
(i) The proposed permit transferee
				shall apply in writing as though that person were the original applicant for
				the permit; and
(ii) The proposed
				permit transferee shall agree to be bound by all of the terms and conditions of
				the permit.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-11 - Prohibitions

Current through July 13, 2024
(a) Pursuant to the
				provisions of W.S. §
									
										35-11-301(a), no person
				shall:
(i) Discharge into, construct,
				operate, or modify any Class VI well unless permitted pursuant to this
				Chapter;
(ii) Discharge or inject
				to any zone except the authorized injection zone as described in the
				permit;
(iii) Conduct any injection
				activity in a manner that results in a violation of any permit condition or
				that conflicts with any representations made in a permit application;
(iv) Construct, operate, maintain, convert,
				plug, abandon, or conduct any other injection activity in a manner that allows
				the movement of fluid containing any contaminant into underground sources of
				drinking water, if the presence of that contaminant may cause a violation of
				any primary drinking water regulation contained in 40 C.F.R. Part 141, Subparts
				E, F, and G, or may otherwise adversely affect human health, safety, or the
				environment. The applicant for a permit shall have the burden of showing that
				the requirements of this paragraph are met.
(v) Inject any hazardous waste that has been
				banned from land disposal pursuant to Wyoming Hazardous Waste Rules, Chapter
				1;
(vi) Construct a new, operate an
				existing, or maintain an existing Class V well for non-experimental geologic
				sequestration
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-12 - Minimum Criteria for Siting Class VI Wells

Current through July 13, 2024
(a) All Class VI
				wells shall be sited in areas with a suitable geologic system. The geologic
				system shall be comprised of:
(i) An injection
				zone of sufficient areal extent, thickness, porosity, and permeability to
				receive the total anticipated volume of the carbon dioxide stream;
				and
(ii) Confining zones that are
				free of transmissive faults or fractures and of sufficient areal extent and
				integrity to contain the injected carbon dioxide stream and displaced formation
				fluids and allow injection at proposed maximum pressures and volumes without
				initiating or propagating fractures in the confining zones or causing
				non-transmissive faults to become transmissive.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-13 - Area of Review Delineation and Corrective Action

Current through July 13, 2024
(a) The owner or
				operator of a Class VI well shall prepare, maintain, and comply with a plan to
				delineate the area of review for a proposed geologic sequestration project,
				reevaluate the delineation, and perform corrective action that meets the
				requirements of this Section and is approved by the Administrator. The area of
				review shall be based on computational modeling that accounts for the physical
				and chemical properties of all phases of the injected carbon dioxide stream.
				The area of review shall never be less than the area of potentially affected
				groundwater. An area of review and corrective action plan shall include the
				following information:
(i) The method for
				delineating the area of review that meets the requirements of paragraph (b) of
				this Section, including the name, version and availability of the model that
				will be used, assumptions that will be made, and the site characterization data
				on which the model will be based;
(ii) A description of:
(A) The monitoring and operational conditions
				that would warrant a reevaluation of the area of review prior to the next
				scheduled re-evaluation as determined by the minimum fixed frequency
				established in paragraph (c) of this Section.
(B) How monitoring and operational data
				(e.g., injection rate and pressure) will be used to evaluate the area of
				review; and
(C) How corrective
				action will be conducted to meet the requirements of paragraph (b)(v) of this
				Section, including:
(I) What corrective action
				will be performed prior to injection;
(II) What, if any, portions of the area of
				review will have corrective action addressed on a phased basis and how the
				phasing will be determined;
(III)
				How corrective action will be adjusted if there are changes in the area of
				review; and
(IV) How site access
				will be ensured for future corrective action.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-14 - Construction and Operation Standards for Class VI Wells

Current through July 13, 2024
(a) The owner or
				operator shall design, construct, and complete all Class VI wells to meet the
				construction standards in this Section and to:
(i) Prevent the movement of fluids into or
				between USDWs or into any unauthorized zones;
(ii) Allow the use of appropriate testing
				devices and workover tools; and
(iii) Allow continuous monitoring of the
				annulus space between the injection tubing and long string casing.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-15 - Class VI Injection Depth Waiver Requirements

Current through July 13, 2024
(a) An owner or
				operator seeking a waiver of the requirement to inject below the lowermost USDW
				shall submit a supplemental report concurrent with the permit application. The
				report shall contain the following:
(i) A
				demonstration that the injection zones are laterally continuous, are not USDWs,
				and are not hydraulically connected to USDWs; do not outcrop within the area of
				review; have adequate injectivity, volume, and sufficient porosity to safely
				contain the injected carbon dioxide and formation fluids; and have appropriate
				geochemistry;
(ii) A demonstration
				that the injection zones are bounded by laterally continuous, impermeable
				confining units above and below the injection zones adequate to prevent fluid
				movement and pressure buildup outside of the injection zones;
(iii) A demonstration that the confining
				units are free of transmissive faults and fractures;
(iv) A characterization of the regional
				fracture properties and a demonstration that the fractures will not interfere
				with injection, serve as conduits, or endanger USDWs;
(v) A computer model demonstrating that USDWs
				above and below the injection zone will not be endangered as a result of fluid
				movement. The modeling shall be done in conjunction with the area of review
				determination described in Section
				13 of this Chapter, is subject to the
				requirements of Section
				13(b) of this Chapter,
				and shall be periodically reevaluated as required by Section
				13(c) of this
				Chapter;
(vi) A demonstration that
				well design and construction, in conjunction with the waiver, will ensure
				isolation of the injectate in lieu of the requirements of Section
				14(a)(i) of this Chapter
				and will meet the well construction requirements of paragraph (f) of this
				Section;
(vii) A description of how
				the monitoring and testing and any additional plans will be tailored to this
				geologic sequestration project to ensure protection of USDWs above and below
				the injection zone;
(viii)
				Information on the location of all public water supplies affected, reasonably
				likely to be affected, or served by USDWs in the area of review; and
(ix) Any other information requested by the
				Administrator.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-16 - Expansion to the Areal Extent of Existing Class II Injection Well Aquifer Exemptions for Class VI Injection Wells

Current through July 13, 2024
(a) The owner or
				operator of a Class II enhanced oil recovery or enhanced gas recovery well that
				requests an expansion of the areal extent of an existing aquifer exemption for
				the exclusive purpose of Class VI injection for geologic sequestration shall
				define (by narrative description, illustrations, maps, or other means) and
				describe (in geographic and/or geometric terms such as vertical and lateral
				limits and gradient that are clear and definite) all aquifers or parts thereof
				that are requested to be designated as exempted using the criteria in
				subparagraphs (b)(i)(A)-(C) of this Section.
(b) The Administrator may consider a request
				from an owner or operator of permitted Class II injection well to convert its
				well to a Class VI well and expand the areal extent of the existing Class II
				enhanced oil recovery or enhanced gas recovery aquifer exemption for the
				exclusive purpose of Class VI injection for geologic sequestration.
(i) The Administrator may approve the request
				if the existing aquifer exemption and the well meet the following conditions:
(A) The groundwater does not currently serve
				as a source of drinking water;
(B)
				The total dissolved solids content of the groundwater is more than 3,000 mg/L
				and less than 10,000 mg/L; and
(C)
				The groundwater is not reasonably expected to supply a public water
				system.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-17 - Logging, Sampling, and Testing Prior to Injection Well Operation

Current through July 13, 2024
(a) During the
				drilling and construction of a Class VI injection well, the owner or operator
				shall run appropriate logs, surveys, and tests to determine or verify the
				depth, thickness, porosity, permeability, lithology, and salinity of any
				formation fluids in all relevant geologic formations to ensure the well meets
				the construction requirements of Section
				14 of this Chapter and to establish
				accurate baseline data against which future measurements may be compared. The
				owner or operator shall submit to the Administrator a descriptive report
				prepared by a knowledgeable log analyst that includes an interpretation of the
				results of the logs and tests. At a minimum, the logs and tests shall include:
(i) Deviation checks measured during drilling
				on all holes constructed by drilling a pilot hole that is subsequently enlarged
				by reaming or another method. Deviation checks shall be at sufficiently
				frequent intervals to determine the location of the borehole and to ensure that
				vertical avenues for fluid movement in the form of diverging holes are not
				created during drilling;
(ii)
				Before and upon installation of the surface casing:
(A) Resistivity, spontaneous potential, and
				caliper logs before the casing is installed; and
(B) A cement bond and variable density log,
				or other approved device to evaluate cement quality radially with sufficient
				resolution to identify channels, voids, or other areas of missing cement and a
				temperature log after the casing is set and cemented;
(iii) Before and upon installation of the
				long string casing:
(A) Resistivity,
				spontaneous potential, porosity, caliper, gamma ray, fracture finder logs, and
				any other logs the Administrator requires for the given geology before the
				casing is installed; and
(B) A
				cement bond and variable density log, and a temperature log after the casing is
				set and cemented;
(iv)
				Tests designed to demonstrate the internal and external mechanical integrity of
				injection wells, which may include:
(A) A
				pressure test with liquid or gas;
(B) A tracer survey, such as
				oxygen-activation logging;
(C) A
				temperature or noise log; and
(D) A
				casing inspection log; and
(v) Any alternative methods that provide
				equivalent or better information and that are required or approved by the
				Administrator.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-18 - Injection Well Operating Requirements

Current through July 13, 2024
(a) The owner or
				operator shall ensure that injection pressure does not exceed ninety percent
				(90%) of the fracture pressure of the injection zone(s) to ensure that the
				injection does not initiate new fractures or propagate existing fractures in
				the injection zone(s).
(i) In no case may
				injection pressure cause movement of injection or formation fluids in a manner
				that endangers a USDW, or otherwise threatens human health, safety, or the
				environment.
(ii) In no case may
				injection pressure initiate fractures in the confining zones or cause the
				movement of injectate or formation fluids that endangers a USDW or otherwise
				threatens human health, safety, or the environment.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-19 - Mechanical Integrity

Current through July 13, 2024
(a) A Class VI well
				has mechanical integrity if:
(i) There is no
				significant leak in the casing, tubing, or packer; and
(ii) There is no significant fluid movement
				into a USDW through channels adjacent to the injection wellbore.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-21 - Record Retention

Current through July 13, 2024
(a) An owner or
				operator of a Class VI well shall maintain records according to the following
				schedules:
(i) Calibration and maintenance
				records and all original strip chart recordings for continuous monitoring
				instrumentation, copies of all reports required by this permit, and records of
				all data used to complete the application for this permit, for a period of at
				least three (3) years from the date of the sample, measurement, report, or
				application. This period may be extended by request of the Administrator at any
				time;
(ii) The nature and
				composition of all injected fluids until ten (10) years after the completion of
				any plugging and abandonment procedures under Section 23 of this
				Chapter;
(iii) All modeling inputs
				and data used to support area of review reevaluations under Section
				13 of this Chapter shall be retained for
				ten (10) years;
(iv) The
				well-plugging report required by Section 23 of this Chapter, the site closure
				report required by Section 24 of this Chapter, and any post-injection site care
				data, (including data and information used to establish the post-injection site
				care time frame) shall be retained for ten (10) years following site
				closure;
(v) All data used to
				complete permit applications shall be retained for the life of the geologic
				sequestration project and for ten (10) years following site closure;
				and
(vi) All other monitoring
				records required by a permit shall be retained for a period of ten (10) years
				following site closure.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-22 - Reporting and Notice Requirements

Current through July 13, 2024
(a) The owner or
				operator shall provide the following reports to the Administrator, for each
				Class VI well:
(i) Semi-annual reports.
				Semi-annual reports required by the permit shall be submitted to the
				Administrator within thirty (30) days following the end of the period covered
				in the report and shall contain:
(A) Any
				changes to the physical, chemical, and other relevant characteristics of the
				carbon dioxide stream from the proposed operating data;
(B) Monthly average, maximum, and minimum
				values for injection pressure, flow rate and volume, and annular
				pressure;
(C) A description of any
				event that exceeds operating parameters for annulus pressure or injection
				pressure as specified in the permit;
(D) A description of any event that triggers
				a shutdown device required pursuant to Section
				18(g) of this Chapter,
				and the response taken;
(E) The
				monthly volume of the carbon dioxide stream injected over the reporting period
				and project cumulatively;
(F)
				Monthly annulus fluid volume added; and
(G) The results of monitoring required by
				Section
				20 of this Chapter;
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-23 - Injection Well-plugging

Current through July 13, 2024
(a) Prior to
				well-plugging, the owner or operator shall flush each Class VI injection well
				with a buffer fluid, determine bottom hole reservoir pressure, and perform a
				final external mechanical integrity test in accordance with Section
				19 of this Chapter.
(b) The owner or operator of a Class VI well
				shall prepare, maintain, update on the same schedule as the update to the area
				of review delineation, and comply with a well-plugging plan that is approved by
				the Administrator. The well-plugging plan shall include the following
				information:
(i) Appropriate test or measure
				to determine bottom hole reservoir pressure;
(ii) Appropriate testing methods to ensure
				final external mechanical integrity as specified in Section
				19 of this Chapter;
(iii) The type and number of plugs to be
				used;
(iv) The placement of each
				plug including the elevation of the top and bottom of each plug;
(v) The type and grade and quantity of
				material, suitable for use with the carbon dioxide stream, to be used in
				plugging; and
(vi) A description of
				the method of placement of the plugs.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-25 - Emergency and Remedial Response

Current through July 13, 2024
(a) All owners or
				operators of a Class VI well shall develop, maintain, and comply with an
				emergency and remedial response plan that describes actions to be taken to
				address movement of the injectate or formation fluids that endangers a USDW or
				threatens human health, safety, or the environment during construction,
				operation, closure, and post-closure periods.
(i) The emergency and remedial response plan
				shall be reviewed and updated, as necessary, on the same schedule as the update
				to the area of review delineation.
(ii) Any amendments to the emergency and
				remedial response plan shall be subject to approval by the Administrator, shall
				be incorporated into the permit, and are subject to the permit modification
				requirements of Section
				6 of this
				Chapter. Amendments to the emergency and remedial response plan shall be
				submitted to the Administrator as follows:
(A) Within one (1) year of an area of review
				reevaluation;
(B) Following any
				significant changes to the facility, such as addition of injection or
				monitoring wells; or
(C) When
				required by the Administrator.
(iii) The emergency and remedial response
				plan shall account for the entire area of review delineated pursuant to Section
				13 of this Chapter, regardless of whether
				corrective action in the area of review is phased.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-26 - Financial Responsibility

Current through July 13, 2024
(a) Owners or
				operators of Class VI wells shall establish, demonstrate, and maintain
				financial responsibility for all applicable phases of the geologic
				sequestration project, including complete site reclamation in the event of
				default. The phases of a geologic sequestration project are:
(i) Permitting/characterization;
(ii) Testing and monitoring, pursuant to
				Section
				20 of this Chapter;
(iii) Operations, including injection and
				well-plugging, pursuant to Sections
				18 and 23 of this Chapter;
(iv) Post-injection site care, including
				plume stabilization, monitoring, measurement, verification, corrective action,
				and other actions needed to ensure that underground sources of drinking water
				are not endangered from the time of well-plugging until site closure is
				certified by the Administrator and above ground-reclamation is completed,
				pursuant to Section 24 of this Chapter; and
(v) Emergency and remedial response pursuant
				to Section 25 of this Chapter.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-27 - Public Participation, Public Notice and Public Hearing Requirements

Current through July 13, 2024
(a) The
				Administrator shall give public notice if a draft permit has been prepared,
				after receiving a financial assurance release request pursuant to Section
				26(h)(i)(A) of this Chapter and finding the operator has met the requirements
				of
				W.S.
				35-11-313(f)(vi)(F), or if a
				hearing has been scheduled.
(i) Public notice
				of the preparation of a draft permit shall allow at least sixty (60) days for
				public comment.
(ii) Public notice
				of a hearing or recommendation to release financial assurance after certifying
				site closure shall be given at least thirty (30) days before the
				hearing.
(iii) Public notice of a
				hearing may be given at the same time as public notice of the draft permit or
				of a draft recommendation to release financial assurance after certifying site
				closure, and the two notices may be combined.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program › Section 24-28 - Incorporation by Reference

Current through July 13, 2024
(a) These rules
				incorporate by reference the following statutes, rules, and regulations in
				effect as of July 1, 2020:
(i) 10 C.F.R. Part
				20, Appendix B, Table II, Column 2, available at
http://www.ecfr.gov
;
(ii)
										40 C.F.R. §§
											98.440 to
				98.449,, available at
http://www.ecfr.gov
;
(iii)40 C.F.R. § 141, Subparts E, F, and
				G, available at:
http://www.ecfr.gov
;
(iv)
										40 C.F.R. §
											261.3 available at:
http://www.ecfr.gov
;
(v) American Petroleum Institute Recommended
				Practice, API RP 14C, Recommended Practice for Analysis, Design, Installation
				and Testing of Safety Systems for Offshore Production Facilities, Recommended
				Practice 14C, (2018), referred to as "API RP 14C", available at
https://www.apiwebstore.org/publications/item.cgi?af9eaacd-f8b0-4d7c-bfa7-2c39a409f892
;
(vi) American Petroleum Institute
				Specification, API Spec 10A, Specification for Cements and Materials for Well
				Cementing. 25th Edition, (2019), referred to as "API Specification 10A",
				available at
https://www.apiwebstore.org/publications/item.cgi?82493435-f281-45d8-af82-07ad8131cb56
;
(vii) American Petroleum Institute
				Recommended Practice, API RP 10D-2, Centralizer Placement and Stop-collar
				Testing, (2020), referred to as "API RP 10D-2", available at
https://www.apiwebstore.org/publications/item.cgi?7ad6705a-954e-476c-b520-47cbbdce9f06
;
(viii) American Petroleum Institute
				Recommended Practice, API RP 10B-2, Recommended Practice for Testing Well
				Cements, (2019), referred to as "API RP 10B-2", available at
https://www.apiwebstore.org/publications/item.cgi?3c1808c7-6312-4b8d-b3de-291ef79704c5
;
(ix) American Petroleum Institute Recommended
				Practice, API RP 14B, Design, Installation, Repair, and Operation of Subsurface
				Safety Valve Systems, (2012), referred to as "API RP 14 B", available at
https://www.apiwebstore.org/publications/item.cgi?a1711f10-0121-4c12-936c-471c97a19f93
;
(x) American Petroleum Institute
				Specification, API Spec 5CT, Specification for Casing and Tubing, (2019),
				referred to as "API Specification 5CT", available at
https://www.apiwebstore.org/publications/item.cgi?5b345884-5a3a-4889-8066-60f93e467f29
;
(xi) American Petroleum Institute Recommended
				Practice, API RP 5C1, Recommended Practices for Care and Use of Casing and
				Tubing, (2020), referred to as "API RP 5C1", available at
https://www.apiwebstore.org/publications/item.cgi?010058af-29b1-412c-b892-ec3e5583c534
;
				and
(xii) American Petroleum
				Institute Specification, API Spec 11D1, Packers and Bridge Plugs, (2015),
				referred to as "API Specification 11D1", available at
https://www.apiwebstore.org/publications/item.cgi?4828a454-0fea-451b-a61b-18304836ea91
.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 25 - SEPTIC TANKS, SOIL ABSORPTION SYSTEMS, AND OTHER SMALL WASTEWATER SYSTEMS › Section 25-1 - Authority

Current through July 13, 2024
This rule is promulgated pursuant to Wyoming Statutes
				  (W.S.)
										35-11-101 through
				  35-11-1904,
				  specifically
				  
										35-11-302(a)(iii).