reglab/statecodes huggingface dataset:
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-3 - Applicability; General

Current through July 13, 2024
(a) These
				regulations shall apply to any discharge to the subsurface including the vadose
				zone that could render any Groundwater of the State unsuitable or degrade it
				for all uses for which it was suitable prior to discharge. Class I and Class V
				facilities are regulated pursuant to Chapters 13 and 16, respectively and are
				not regulated under Chapter 9.
(b)
				A permit for a discharge shall not be required if the discharge is part of a
				facility for which an application has been made to the Division for a Permit to
				Construct, Install or Modify Public Water Supplies and Wastewater
				Facilities.
(c) Discharges, for the
				purpose of these regulations, are described and identified as:
(i) Discharges of commercial, municipal and
				industrial wastes, which include but are not limited to:
(A) Municipal wastes;
(B) Chemical, refining and manufacturing
				wastes;
(C) Mining and mineral
				processing wastes;
(D) Oil field
				wastes including water produced with oil and gas;
(E) Power-generation wastes;
(F) Geothermal fluid return or geothermal
				resource wastes;
(G) Nuclear and
				radioactive wastes from any source; and
(H) Toxic and hazardous wastes from any
				source.
Not included is a discharge that is further described by the
				  Administrator as a discharge of commercial, municipal and industrial wastes of
				  limited time and scope for the purpose of considering the effects specified in
				  W.S.
				  35-11-302(a) (vi) (A) through
				  (E), or for demonstrating compatibility
				  between the waste and the receiver and fluids in the receiver. This type of
				  discharge is identified as a Miscellaneous Discharge in Section 3.(c) (iii)
				  (H).
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-4 - Control of Subsurface Discharges; Permit Required; Exemptions

Current through July 13, 2024
(a) New subsurface
				discharges shall be allowed only pursuant to the Act and provisions of Water
				Quality Rules and Regulations Chapter 8, Quality Standards for Wyoming
				Groundwaters, and these regulations.
(b) No new subsurface discharge to
				Groundwaters of the State shall be allowed:
(i) Unless a permit has been obtained from
				the Department; or
(ii) Unless the
				discharge is exempt from the requirements of these regulations.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-5 - Permit Application

Current through July 13, 2024
(a) The
				owner/operator of a subsurface discharge facility shall apply for a permit in
				accordance with these regulations.
(i) The
				operation of a new subsurface discharge or facility not exempt or excluded from
				these regulations is prohibited unless the owner/operator has obtained a permit
				from the Department.
(ii) The
				owner/operator of an existing discharge facility not exempt or excluded from
				these regulations shall have a period of one (1) year within which to show
				compliance with the requirements of these regulations; excepting that for a
				special process discharge, the operator shall comply with requirements of Land
				Quality Rules and Regulations, Chapter 18, Section
				2(a) for in situ
				mining.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-6 - Application Requirements

Current through July 13, 2024
(a) A complete
				application for a permit for the purpose of underground management of
				commercial, municipal and industrial wastes shall include the following:
(i) Complete identification including name,
				address and telephone number of the owner/operator and the facility, and
				location of the facility by section, township, range and county.
(ii) Type, source, and chemical, physical,
				radiological and toxic characteristics of the discharge; and the management
				procedure.
(iii) The name,
				description, depth, geology and hydrology of the receiver; and fluid chemistry
				of the receiver, including total dissolved solids.
(iv) A description of groundwater or receiver
				testing procedures used.
(v) Water
				quality information, including background water quality data, that will
				facilitate the classification of any groundwater that may be affected by the
				proposed discharge.
(vi) A listing
				of the locations of all water wells in the area of review and the status of
				each.
(vii) Construction and
				engineering details of the facility.
(viii) Operating data.
(ix) Methods and procedures for inspection of
				the facility and operations, and for detecting failure of the well(s) and
				system in a timely fashion.
(x)
				Information that shows that the discharge can be controlled and will not
				migrate into other receivers or to the surface, or will not adversely affect
				the quality of other water resources.
(xi) Maps and sections:
(A) Location;
(B) General geology;
(C) Area geohydrology.
(xii) Plans:
(A) For monitoring volume and chemistry of
				the discharge, and water quality of nearby water wells.
(B) For monitoring injection and annular
				fluid pressures of the discharge well and for minimizing the possibility of
				fracturing confining strata above and below the discharge zone.
(C) Contingency plans to cope with all
				shut-ins, malfunctions or well failures to prevent endangerment of
				groundwater.
(xiii)
				Documentation to show that the discharge will not impair existing water supply
				sources or rights, be hazardous to public health or eliminate an opportunity to
				economically recover or store valuable minerals or groundwater in the
				receiver.
(xiv) The applicant will
				affirmatively demonstrate or document mechanical integrity of the well or
				system; and that the discharge is compatible with the receiver and fluids in
				the receiver and the operation is in conformity with provisions and standards
				of
Quality Standards for Wyoming Groundwaters
and
				these regulations.
(xv) The
				applicant will provide a written evaluation of alternative disposal practices
				demonstrating that subsurface discharge is the best management
				alternative.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-8 - Permit Conditions and Content

Current through July 13, 2024
For any subsurface discharge excepting a special process
				  discharge.
(a) The permittee is
				required to conduct the operation in accordance with statements,
				representations and procedures presented in the complete permit application and
				supporting documents, as accepted and approved by the Administrator.
(b) The subsurface discharge authorized by
				permit shall be consistent with the conditions and content of the permit; any
				modifications that will result in a violation of permit conditions shall be
				reported by submission of a new or amended permit application and shall not be
				implemented until a new or modified permit has been issued.
(c) After notice and opportunity for a
				hearing, a permit may be modified, suspended or revoked in whole or part during
				its term for cause that includes, but is not limited to, any of the following:
(i) Violation of the permit;
(ii) Obtaining a permit by misrepresentation
				or failure to fully disclose all relevant facts;
(iii) A change in any condition that
				indicates failure of the discharge well or system.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-9 - Special Permit Conditions

Current through July 13, 2024
(a) A permit for a
				discharge of commercial, municipal or industrial wastes shall include the
				following requirements, in addition to the requirements of Section
				8:
(i) A
				requirement that the Administrator be notified as soon as possible but no later
				than 24 hours after either a significant leak in the casing or tubing, or fluid
				movement out of the discharge zone has been detected and verified.
(ii) A condition that pollution or waste that
				migrates into an aquifer containing a useable Groundwater of the State is a
				violation of the permit.
(iii) A
				condition that the subsurface discharge or operations will terminate
				immediately if mechanical integrity of the well or system fails and/or a leak
				or unauthorized fluid movement occurs.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-10 - Environmental Monitoring Program for Groundwaters of the State

Current through July 13, 2024
(a) Whenever the
				discharge of any pollution or wastes into Groundwaters of the State is caused,
				threatened or allowed; or the physical, chemical, radiological, biological or
				bacteriological properties of any Groundwaters of the State may be altered by
				man's actions, a monitoring program shall be required and shall be adequate to
				insure knowledge of migration and behavior of the pollution or wastes.
(i) Monitoring may be required for any
				circumstance where Groundwaters of the State could be affected.
(ii) The extent and design of a monitoring
				system will be influenced by the pollution potential of the proposed discharge
				or activity.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-11 - Sample Collection and Analysis

Current through July 13, 2024
Acceptable procedures and methods for sample collection and
				  analysis shall be implemented by the applicant or permittee
(a) The procedures used to collect
				groundwater samples shall ensure that the samples are representative of the
				groundwaters being sampled.
(b)
				Sampling shall be of such frequency and of such variety (season, time,
				location, depth, etc.) as to properly describe the groundwater.
(c) Sampling shall be accomplished by methods
				and procedures described in the EPA SW-616 manual,
Procedures
				Manual for Groundwater Monitoring at Solid Waste Disposal
				Facilities
, August, 1977, unless alternate methods and procedures
				are approved by the Administrator.
(d) Analysis will be pursuant to provisions
				of Water Quality Rules and Regulations.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-12 - Records and Reports

Current through July 13, 2024
For any subsurface discharge excepting a special process
				  discharge:
(a) The permittee shall
				maintain records of all information resulting from monitoring activities
				required of him by the permit.
(b)
				Data obtained as a result of monitoring discharge operations shall be submitted
				to the Administrator as requested.
(c) Data obtained as a result of monitoring
				quality parameters and levels of fluids shall be submitted to the Administrator
				as requested.
(d) Upon request by
				the Administrator, the permittee shall submit construction, completion and
				logging data of any discharge, monitor or operational well(s)
				constructed.
(e) The permittee
				shall submit a written report to the Administrator of all remedial work
				concerning the failure of equipment or operational procedures that resulted in
				a permit violation, at the completion of the remedial work.
(f) Annual reports shall be submitted as
				required to the Administrator within 30 days following the anniversary date of
				the permit.
(g) A comprehensive
				report shall be submitted for any aborted or curtailed subsurface discharge
				operation within 30 days of complete termination of the discharge or associated
				activity, in lieu of an annual report.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-13 - Prohibitions

Current through July 13, 2024
(a) No person,
				except when authorized by a permit issued pursuant to the Act and these
				regulations, shall engage in any subsurface discharge operation that may:
(i) Cause, threaten or allow the discharge of
				any pollution or wastes into any Groundwaters of the State; or
(ii) Alter the physical, chemical,
				radiological, biological or bacteriological properties of any Groundwaters of
				the State; or shall
(iii)
				Construct, install or operate any discharge system capable of causing or
				contributing to pollution of Groundwaters of the State.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-14 - Permit Revocation

Current through July 13, 2024
For any subsurface discharge excepting a special process
				  discharge:
(a) The Director shall
				revoke a permit if at any time he determines that the permit holder
				intentionally misstated or failed to provide information that would have
				resulted in the denial of a permit and that good faith compliance with the
				policies, purposes and provisions of the Act would have required him to
				provide.
(b) Unless an emergency
				exists, the revocation of a permit shall become effective upon 30 days notice
				to the operator. In case of an emergency, a special meeting of the Council may
				cause such revocation to become effective immediately upon receipt of notice
				thereof by the permit holder.
(c)
				The Director has the power to issue emergency orders pursuant to
				W.S.
				35-11-115.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-15 - Responsibility; Transfer of Responsibility

Current through July 13, 2024
For any subsurface discharge excepting a special process
				  discharge:
The owner/operator of record is always responsible for permit
				  compliance. A permit holder desiring to transfer his permit shall apply to the
				  Administrator; and the potential transferee shall agree, in a written statement
				  to the Administrator, to be bound by all the terms and conditions of the
				  original permit. No transfer of a permit will be allowed if the current permit
				  holder is in violation of the Act or the permit, unless the transferee agrees
				  to bring the permit into compliance. Upon notification of transfer approval by
				  the Director to both the old and new operators, the new operator becomes the
				  operator of record.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-16 - Public Information

Current through July 13, 2024
All information received on or with the permit application
				  shall be made available to the public for inspection and copying except such
				  information as has been determined to constitute trade secrets or confidential
				  information pursuant to
				  W.S.
				  35-11-1101. The Administrator shall provide
				  facilities for inspection and copying of all non-confidential documents.
				  Copying shall be at the expense of the person requesting copies.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-17 - Public Participation

Current through July 13, 2024
If public notice of any complete subsurface discharge permit
				  application other than for a special process discharge is required, public
				  notice shall be given within ten (10) days after the applicant has been
				  notified that the application is complete, and in the following manner:
(a) Notice shall be circulated by one or more
				of the following methods:
(i) Posting in the
				post office and other public places of the municipality nearest the
				premises;
(ii) Posting near the
				entrance to the applicant's premises;
(iii) Publication in local
				newspapers.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-18 - Public Hearing

Current through July 13, 2024
(a) The
				Administrator shall provide an opportunity for the applicant or any interested
				person to request a public hearing with respect to any permit application of
				Section 17 above.
Any such request shall be filed during the comment period
				  specified in Section
				  17. (c) and shall indicate the interest of
				  the party and the reasons why a hearing is warranted. If the Administrator
				  finds that there is a significant degree of public interest in holding the
				  hearing, he will request that the Council hold such a hearing in the geographic
				  area wherein the proposed discharge is located, or other appropriate
				  area.
(b) Public notice of
				a hearing held pursuant to paragraph (a) above will be circulated utilizing any
				or all of the methods available for notice of the permit application set out in
				Section 17(a), and such notice
				will be provided no less than 30 days in advance of the hearing. The contents
				of the public notice will consist of the following:
(i) Name, address and phone number of the
				Division;
(ii) Name and address of
				each applicant whose application will be considered at the hearing;
(iii) Name of receiver to which each
				discharge is made and description of the location of each existing discharge to
				the receiver in the area of review;
(iv) Brief reference to the public notice
				issued for each permit application including identification number and date of
				issuance;
(v) Information regarding
				the time and location of the hearing;
(vi) The purpose of the hearing;
(vii) A concise statement of the issues
				raised by the persons requesting the hearing;
(viii) A statement that a copy of the
				proposed permit and other information is available at the address specified in
				paragraph (i) above;
(ix) A brief
				description of the nature of the hearing, including applicable rules and
				procedures to be followed in accordance with the Wyoming Administrative
				Procedure Act; and
(x) The
				Administrator shall make available at the hearing, as reasonable, copies of the
				subject permit application.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-19 - Special Process Discharge/In Situ Mining; Permit Conditions an Content; Records and Reports; Permit Revocation; Responsibility; Public Participation; Public Hearing

Current through July 13, 2024
The following provisions for a special process discharge
				  shall conform to or be identical with the same or similar provisions
				  established for in situ mining by Land Quality Rules and Regulations, Chapter
				  18, Section
				  2(a):
(a) Permit conditions and content;
(b) Records and reports;
(c) Permit revocation;
(d) Transfer of responsibility;
(e) Public participation; and
(f) Public hearing.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 9 - WYOMING GROUNDWATER POLLUTION CONTROL PERMIT › Section 9-20 - Civil or Criminal Remedy

Current through July 13, 2024
Nothing in this Chapter shall in any way limit any existing
				  civil or criminal remedy for any wrongful action arising out of violation of
				  any provision of the Wyoming Environmental Quality Act or any rule, regulation,
				  standard, permit, license or variance or order adopted thereunder.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 11-1 - Authority

Current through July 13, 2024
These standards are promulgated pursuant to W.
					 S.
											35-11-101 through
					 35-11-1207.
					 Specifically, W. S.
					 
											35-11-302 requires the Administrator to
					 establish standards for the issuance of permits for construction, installation,
					 or modification of any public water supply and sewerage system, treatment
					 works, disposal system or other facility capable of causing or contributing to
					 pollution.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 11-2 - Purpose

Current through July 13, 2024
The purpose of these standards is to:
(a) Ensure that the design and construction
				  of sewerage systems, treatment works, disposal systems and other facilities
				  capable of causing or contributing to pollution meet the purpose of the
				  Environmental Quality Act.
(b)
				  Prevent, reduce and eliminate pollution and enhance the Waters of the State of
				  Wyoming by ensuring design and construction of systems and facilities are
				  capable of the required treatment and/or disposal and continued operation to
				  protect the health, safety and welfare of the environment and its inhabitants.
These standards pertain only to permits required pursuant
					 to Chapter 3 and 9, Wyoming Water Quality Rules and Regulations.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 11-3 - Intent

Current through July 13, 2024
The design and construction standards included in these
					 regulations are directed toward conventional wastewater and waste systems.
					 These standards impose limiting values of design for which a construction,
					 installation or modification permit application and plans and specifications
					 can be evaluated by the Division.
The terms "shall" and "must" are used when practice is
					 sufficiently standardized to permit specific delineation of requirements or
					 when safeguarding public health or protection of water quality justifies such
					 definite action. Other terms, such as "should", "recommend", and "preferred"
					 indicate desirable procedures or methods that allow deviations provided the
					 purpose of these regulations can be accomplished.
The applicant shall use the date referenced copy of other
					 standards referred to in these regulations. Where no date is listed for the
					 referenced standards, the standards used shall be those in effect when these
					 regulations become effective.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 11-5 - Facilities and Systems Not Specifically Covered by These Standards

Current through July 13, 2024
This section is provided to encourage new technology and
					 equipment and provide a process for evaluating and permitting designs that
					 deviate from these regulations. The proposed construction of facilities and
					 processes not in compliance with these regulations will be permitted provided
					 that the facility, when constructed, can operate meeting the purpose of these
					 regulations.
(a) Each application for
				  a permit to construct a facility under this section shall be evaluated on a
				  case-by-case basis using the best available technology. The following
				  information should be included with the application:
(i) Data obtained from a full scale,
				  comparable installation that demonstrates the acceptability of the design
				  and/or,
(ii) Data obtained from a
				  pilot plant operated under the design condition for a sufficient length of time
				  to demonstrate the acceptability of the design and/or,
(iii) Data obtained from a theoretical
				  evaluation of the design that demonstrates a reasonable probability of the
				  facility meeting the design objectives; and
(iv) An evaluation of the flexibility of
				  making corrective changes to the constructed facility in the event it does not
				  function as planned.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 11-6 - Engineering Design Report

Current through July 13, 2024
(a) Scope and
				  purpose. An engineering design report that describes existing conditions,
				  problems, and the proposed solution is required for each project.
(b) Sewerage systems. The engineering design
				  report shall include:
(i) A description of the
				  service area including scaled vicinity plan map(s) of the project with regard
				  to adjacent and proposed development, elevations, and topographic
				  features.
(ii) Current and
				  projected average, maximum day and peak flows for the design of the project,
				  per capita design flows, extraneous flows, and industrial and/or commercial
				  waste flows.
(iii) Downstream
				  impact on existing sewers, lift stations and treatment facilities. This
				  information shall include existing population, waste loads, existing flows and
				  capacity of downstream facilities.
(iv) A letter of acceptance from the
				  municipality, sewer district, or owner of any affected downstream sewerage,
				  treatment or disposal facilities.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 11-7 - Plans and Specifications Content

Current through July 13, 2024
(a) All plans for
				  sewerage works shall have a suitable title showing the following:
(i) Name of owner and location of
				  project.
(ii) North arrow and
				  drawing scale.
(iii) Name and seal
				  or signature of the engineer.
Datum used shall be indicated. Plans shall contain a site
					 plan of the proposed project with topography and boundaries of the
					 project.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-8 - General

Current through July 13, 2024
This part contains the minimum standards for the design and
					 construction of sewerage systems, treatment works, and disposal systems for
					 domestic and municipal wastewater. Soil absorption and land application systems
					 are contained in other parts. All facilities shall comply with the purpose of
					 this chapter.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-10 - Pumping stations

Current through July 13, 2024
(a) Design
				  conditions.
(i) Total dynamic head. The total
				  dynamic head rating of pumping units shall be based on pipe friction, pressure
				  losses from piping entrances, exits, appurtenances (bends, valves, etc.), and
				  static head at the rated flow.
(ii)
				  Grit. Where no grit removal is provided ahead of the pumping station, equipment
				  and piping design shall minimize the deleterious effects of grit in the
				  sewage.
(iii) Screening. Screens or
				  comminutors shall be provided ahead of pumps where the average daily flow is in
				  excess of 1.0 mgd (3,784 m3/d) to prevent solids
				  larger than 2 ½ inches (6.4 cm) from entering the pump.
(iv) Minimum pump opening. Except for grinder
				  pumps, raw sewage pumps shall be capable of passing spheres of at least three
				  (3) inches (7.6 cm) in diameter. Pump suction and discharge piping in all
				  sewage and sludge services shall be no smaller than four (4) inches in diameter
				  (10 cm).
(v) Pump cycle time.
				  Intermittently operated pumps shall be designed to start no more often than
				  once every ten (10) minutes at the minimum operating interval.
(vi) Removal of equipment. Pumping stations
				  shall be designed to permit removal of all items of equipment including pumps,
				  valves, electrical and control equipment. Equipment located in wetwells shall
				  be removable without entering the wetwell.
(vii) Surge control. Piping systems shall be
				  designed to withstand the maximum possible surge (water hammer) from the
				  pumping station, or adequate surge control provided to protect the piping.
				  Pressure relief valves are not acceptable surge control.
(viii) Net positive suction head. Pumps shall
				  be selected so that the net positive suction head required at maximum flow
				  (NPSHR) is less than the NPSH available minus four feet (1.2 m) based on the
				  hydraulic conditions and altitude of the pumping station.
(ix) Uplift. The pumping station chambers
				  shall resist hydrostatic uplift pressures. Siting requirements.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-11 - General Treatment Plant Considerations

Current through July 13, 2024
(a) Surface water
				  protection. Discharges to surface waters shall meet or exceed quality
				  limitations in the National Pollution Discharge Elimination System permit.
				  Plant configurations and piping shall be arranged to avoid the bypassing of
				  process units that could result in inadequately treated sewage reaching the
				  receiving surface water.
(b)
				  Groundwater protection. Seepage and/or discharge to groundwater shall comply
				  with Chapter 8 of the Water Quality Regulations. Plan configurations and piping
				  shall be arranged to avoid the bypassing of process units that could result in
				  inadequately treated sewage reaching the groundwater.
(c) Siting requirements.
(i) Isolation. Treatment facilities shall be
				  located to minimize public and private nuisances and health hazards on
				  inhabited areas or residential areas. Where treatment plant siting does
				  potentially affect inhabited areas, appropriate measures to minimize nuisances
				  or hazards shall be incorporated in the design.
(ii) Flood protection. All treatment process
				  structures, mechanical equipment, and electrical equipment shall be protected
				  from the 100-year flood. The treatment facilities shall remain fully
				  operational and accessible during the 25-year flood.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-12 - Pretreatment

Current through July 13, 2024
(a) Flow
				  equalization.
(i) Storage requirements. Where
				  mechanical plants experience large diurnal variations in flow rate that will
				  cause mechanical, hydraulic, or biological process upsets, flow equalization
				  shall be provided.
(ii) Location.
				  Pretreatment facilities, such as bar screens, comminutors and grit chambers,
				  and where possible, primary clarifiers should be located ahead of the
				  equalization basin.
(iii) Drainage
				  and cleaning. Provisions shall be made to isolate, drain and clean the
				  basin(s).
(iv) Aeration and mixing.
				  Aeration shall be sufficient to maintain a minimum of 2.0 mg/L of dissolved
				  oxygen in the basin at all times. Air supply rates shall be a minimum of 10
				  cfm/ 1,000 cubic feet (10 m3/min/1000
				  m3) of volume for primary treated wastewater and 20
				  cfm/1,000 cubic feet (20 m3/min/1000
				  m3) of volume for raw or screened waste
				  water.
(v) Controls. Controls shall
				  be provided to control the flow rate from the flow equalization basin. Flow
				  measurement devices shall be provided.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-14 - Activated Sludge

Current through July 13, 2024
(a) Pretreatment.
				  Where primary clarification is not provided, screening of the raw sewage to
				  remove debris larger than 3/4 inch (1.9 cm) shall be provided. The screened
				  material shall not be returned to the plant process. Where primary clarifiers
				  are not provided, cleanouts, grinders, or other similar provisions shall be
				  made in the return sludge piping.
(b) Loading rates. Activated sludge systems
				  shall be designed to accommodate peak day loadings at the design year.
				  Permissible loadings are presented in the following table. Where raw sewage
				  BOD
5
is less than 200 mg/L,
				  detention times may be reduced.
(i)
				  Conventional, including complete mix, plug flow, step aeration
Average Day
Detention (*) hrs,
Following primary clarifiers
6 minimum
Without primary clarifiers
9
							 minimum
Organic Loading:
lb/1,000 cu ft/day (kg/1000 m3d)
35
							 maximum (560
MLSS, mg/L
1,000 - 3,000
(ii) Contact stabilization.
Detention (*) hrs, Contact Zone
0.5 - 3
Sludge Stabilization Zone
6
							 minimum
Average Day
Organic Loading (**)
lb/1,000 cu ft/day
50
(kg/1000 m3d)
(800)
MLSS,
mg/L Contact Zone
1,000 - 3,000
Sludge Stabilization Zone
5,000 -
							 10,000
(iii) Extended aeration, including oxidation
				  ditch.
Detention (*) hrs, Organic
							 Loading,
(kg/1000 m3d)
lb/1,000 cu ft/day
16 minimum
15 maximum (240)
MLSS, mg/L
1,000 - 3,000
(*) Based on average day raw sewage flow rate exclusive of
					 recirculation flow.
(**) Based on contact zone and sludge stabilization zone
					 combined.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-16 - Combination systems

Current through July 13, 2024
When more than one type of biological treatment process is
					 used in series, the removal through each biological unit shall be calculated as
					 if it were acting alone. No symbiotic effect will be included in the design
					 calculation.
Pretreatment requirements for combinations of biological
					 systems will be the same as for attached growth systems. Final settling and
					 sludge handling will be the same as for activated sludge systems.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-17 - Secondary settling

Current through July 13, 2024
(a) Secondary
				  settling. Secondary settling is required after suspended growth and attached
				  growth biological processes such as activated sludge, trickling filters and
				  RBC's.
(b) Configuration. The
				  largest dimension (either diameter or length) of a clarifier shall be eighty
				  (80) feet (24.4 m). Corner sweeps on circular equipment are not
				  acceptable.
(c) Flow distribution.
				  Positive flow splitting shall be provided ahead of multiple sedimentation
				  basins to ensure proportional hydraulic flows and solid loadings to each basin.
				  Flow splitting shall be achieved using positive means such as weirs or valves
				  and meters.
(d) Clarifier inlet and
				  outlet structures.
(i) Clarifier inlet
				  structures shall be designed to dissipate the:
(A) Inlet kinetic energy.
(B) Distribute the flow evenly into the
				  basin.
(C) Minimize hydraulic
				  turbulence.
(D) Prevent short
				  circuiting.
Inlet devices that promote flocculation are
					 encouraged.
The inlet structure for rectangular tanks shall be the full
					 width of the basin, for peripheral feed clarifiers it shall be the entire
					 periphery, and for center feed basins it shall be at least 20 percent of the
					 tank diameter. Baffled scum relief ports shall be provided between the inlet
					 structure and the clarifier.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-18 - Lagoons

Current through July 13, 2024
(a) Design
				  requirements. (ii) Wastewater loading rates.
(i) Location. Wastewater lagoons shall be
				  located more than 500 feet (152 m) from existing habitations.
(A) Facultative. The primary cells of a
				  facultative (non-aerated) pond system shall be limited to a maximum BOD
				  application of 40 lb/acre/day (44.8 kg/ha/d) at average design loading
				  conditions.
(B) Aerated. Aerated
				  lagoons shall be designed for an organic loading of less than 10 lb
				  BOD5/day/1,000 cu ft (160 kg/1,000
				  m3/d) for completely mixed systems, and less than
				  two lb BOD5/day/1,000 cu ft (32 kg/1,000
				  m3/d) for aerated non-completely mixed systems.
				  Aeration equipment shall be sized to maintain a minimum dissolved oxygen of two
				  mg/L. Completely mixed systems are mixed to provide 1/4 hp/1000 cu ft
				  mechanical mixing or 10 cfm/1000 cu ft of air mixing.
(C) Nonsurface water discharging ponds.
				  Nonsurface water discharging ponds shall be designed on the basis of a water
				  balance that considers evaporation and seepage. Water balance calculations
				  shall be submitted with the plans and specifications. The
				  BOD5 loading for non discharging ponds shall not exceed
				  14 lb/acre/day (15.7 kg/ha/d) based on the average annual
				  BOD5.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-19 - Tertiary treatment systems

Current through July 13, 2024
(a) Phosphorus
				  removal.
(i) Equipment requirements.
(A) Flash mixing. Chemical addition points
				  shall be at points of high turbulence, such as Parshall flumes, hydraulic
				  jumps, or separate mixing basins.
(B) Flocculation. Inlet and outlet design
				  shall prevent short circuiting and turbulent destruction of floc. Minimum
				  detention time shall be 20 minutes at the average design flow rate.
The velocity of flocculated water to settling basins shall
					 be 0.5 to 1.5 fps (0.15 to 0.46 mps). Changes in direction shall be with long
					 radius elbows or curved channels.
(C) Chemical feed equipment. Storage shall be
				  provided for at least 14 days of chemical supply. Liquid chemical storage tanks
				  shall have a liquid level indicator, an overflow, and a receiving basin capable
				  of holding 110 percent of the stored volume, or a drain capable of receiving
				  accidental spills or overflows. Liquid chemical storage shall be provided with
				  heat.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-20 - Sludge Handling, Treatment and Disposal

Current through July 13, 2024
(a) Pumping.
(i) Design requirements. Sludge pumps shall
				  be provided with a positive suction pressure at the pump impeller, rotor or
				  plunger at dynamic conditions. Discharge pressure shall include static pressure
				  difference and system friction losses based on the higher viscosity of the
				  sludge than water.
(ii) Piping and
				  valves.
(A) Minimum size. Sludge piping and
				  valves shall at least four (4) inches (10.2 cm) in diameter for pressure piping
				  and six inches (15.2 cm) in diameter for gravity pipe. Pump suction and
				  discharge shall not be less than three (3) inches (7.6 cm) in
				  diameter.
(B) Minimum velocity. For
				  sludge pipes larger than four (4) inches (10.2 cm) in diameter, the minimum
				  velocity shall be one fps (0.3 m/sec).
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-22 - Effluent Structures

Current through July 13, 2024
(a) Location. The
				  location of the effluent discharge shall be at least three (3) miles from
				  public water supply intakes.
(b)
				  Protection from hazards. The outfall sewer shall be constructed and protected
				  against the effects of floodwater, ice, debris, or other hazards as to insure
				  its structural stability and freedom from stoppage. A manhole should be
				  provided at the shore-end of all gravity sewers extending into the receiving
				  waters.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part B - MUNICIPAL AND DOMESTIC SEWERAGE SYSTEMS, TREATMENT WORKS, AND DISPOSAL SYSTEM › Section 11-24 - Operation and Maintenance Manuals

Current through July 13, 2024
(a) Where required.
				  Plant operation and maintenance manuals are required for each new or modified
				  treatment or pumping facility. The manuals shall provide the following
				  information as a minimum:
(i)
				  Introduction.
(ii) Description of
				  facilities and unit processes through the plant from influent structures
				  through effluent structures.
(iii)
				  Plant control system.
(iv)
				  Utilities and systems.
(v)
				  Emergency operation and response.
(vi) Permit requirements and other regulatory
				  requirements.
(vii) Staffing
				  needs.
(viii) Index to
				  manufacturer's manuals.
Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 11 - DESIGN AND CONSTRUCTION STANDARDS FOR SEWERAGE SYSTEMS, TREATMENT WORKS, DISPOSAL SYSTEMS OR OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION AND MOBILE HOME PARK AND CAMPGROUND SEWERAGE AND PUBLIC WATER SUPPLY DISTRIBUTION SYSTEMS › Part C - COMMERCIAL/INDUSTRIAL WASTE AND WASTEWATER FACILITIES › Section 11-25 - General

Current through July 13, 2024
This part contains the minimum standards for the design and
					 construction of commercial/ industrial wastewater facilities. The applicant
					 shall demonstrate to the Administrator that any discharge or seepage from the
					 wastewater facility will not cause a violation of the Surface and/ or
					 Groundwaters of the State in accordance with Chapter 1, "Quality Standards for
					 Wyoming Surface Waters" and Chapter 8, "Quality Standards for Wyoming
					 Groundwaters." Due to the wide variety of wastes, wastewater and site
					 conditions, the latest available scientific information shall be used to
					 demonstrate that violations will not occur.