Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 27 - UNDERGROUND INJECTION CONTROL PROGRAM CLASS I AND V WELLS › Appendix C - SUBCLASSES OF CLASS V FACILITIES

Current through July 13, 2024
SUBCLASS
DESCRIPTION
HEATING AND COOLING FACILITIES
5A1
Direct Heat Reinjection Facilities -
						  Reinject geothermal fluids used to provide direct heat for large buildings,
						  developments or aquiculture facilities
5A2
Heat Pump/Air Conditioner Return Flow
						  Facilities - Reinject groundwater used to heat or cool a building in a ground
						  based heat pump system, or used to inject heat only using a closed loop heat
						  pump system
5A3
Cooling Water Return Flow Facilities -
						  Receive non-contact cooling water from industrial processes, both open and
						  closed loop processes
BENEFICIAL USE INJECTION FACILITIES
5B1
Mining, Sand or Backfill Facilities - Used
						  to inject a fluid mixture of sand, cement, fly ash used as a pozzalin, or mill
						  tailings into mined out portions of underground mines
5B2
Aquifer Recharge Facilities - Receive water
						  specifically for storage of water underground Must be coupled with the ability
						  to withdraw stored water at a later date for beneficial use Coal bed methane
						  operators cannot dispose of their produced water in class 5B2 injection wells
						  after the effective date of these rules
5B3
Saline Water Intrusion Barrier Facilities -
						  Receive fresh water to prevent the continued migration of saline water into a
						  fresh water aquifer Includes projects installed to control contaminant plumes
						  by injection of clean water
5B4
Subsidence Control Facilities - Receive
						  fresh water for the purpose of controlling subsidence caused by an overdraft of
						  water, oil or natural gas
5B5
Facilities which inject fluids and are used
						  to prevent, control or remediate aquifer pollution, which are not owned or
						  controlled by the Department of Environmental Quality All 5B5 facilities are
						  covered under Article 16 of the Environmental Quality Act
5B6
Department Controlled Facilities -
						  Facilities which inject fluids and are used to prevent, control or remediate
						  pollution, remediate subsiding mine sites, or produce other beneficial results
						  which are owned or controlled by the Department of Environmental Quality These
						  facilities include but are not limited to, facilities under the supervision of
						  Water Quality Division's Underground Storage Tank Program, facilities under the
						  control and direction of the Abandoned Mined Lands Program, and facilities
						  under the supervision of the Solid and Hazardous Waste Management Division
						  Control may be exercised through ownership, operation, or by administrative
						  orders, stipulated settlements, consent decrees or other legal methods which
						  result in control of a facility by the department
5B7
Air sparging facilities - Facilities used
						  to inject only air for the purpose of either encouraging microbial breakdown of
						  hydrocarbons or removing of volatile chemicals by vapor extraction
COMMERCIAL AND INDUSTRIAL FACILITIES
5C1
Air Scrubber Waste Disposal Facilities -
						  Inject wastes from air scrubbers used to remove sulphur, fly ash, or other
						  contaminants
5C2
Water Treatment Brine Disposal Facilities -
						  Receive brine from water softening or other water treatment
5C3
Industrial Process Water and Waste Disposal
						  Facilities -Receive wastes generated by industrial and commercial processes.
						  Examples include but are not limited to wastes from car washing, taxidermy,
						  metal plating, printing, silk screening, refining, slaughter houses, and
						  chemical manufacturing companies
5C4
Automotive Waste Disposal Facilities -
						  Inject waste from floor drains or sinks where repair work is done on machinery
						  of any description
5C5
Coal Bed Methane Injection Facilities -
						  Inject groundwater produced in the process of coal bed methane extraction into
						  a receiving aquifer containing water of the same or lower class of use
5C6
Small Commercial Disposal Systems - Inject
						  wastewater which is of similar quality to domestic sewage which does not
						  technically meet the definition of domestic sewage, in quantities of less than
						  2,000 gallons per day
DRAINAGE FACILITIES
5D1
Agricultural Drainage Facilities - Receive
						  irrigation tailwaters, other field drainage, animal yard, feedlot, or dairy
						  runoff, and other agricultural wastewater
5D2
Storm Water Drainage Facilities - Receive
						  storm water runoff from paved areas, including parking lots, streets,
						  residential subdivisions, building roofs, highways, etc
5D3
Improved Sinkholes - Receive storm water
						  runoff from developments located in karst topographic areas
5D4
Industrial Drainage Facilities - Receive
						  storm runoff from areas susceptible to spills, leaks, and other chemical
						  discharges
5D5
Special Drainage Facilities - Receive water
						  from sources other than direct precipitation. Examples of this type include
						  landslide control drainage facilities, potable water tank overflow drainage
						  facilities, swimming pool drainage facilities, and lake level control drainage
						  facilities
SEWAGE DISPOSAL FACILITIES
5E1
Aquaculture Return Flow Facilities -
						  Receive injectate from aquaculture operations
5E2
Untreated Domestic sewage Disposal
						  Facilities - Receive untreated domestic sewage from single or multiple sources.
						  Does not include subsurface fluid distribution systems with septic tanks ahead
						  of the subsurface fluid distribution system. Includes all cesspools, regardless
						  of capacity
5E3
Domestic Subsurface Fluid Distribution
						  Systems - Receive more than 2,000 gallons per day of domestic sewage with only
						  primary treatment such as effluent from a septic tank In addition, any facility
						  injecting domestic sewage within any five (5) acres of land is a class 5E3
						  facility whenever multiple 5E facilities under one owner inject a cumulative
						  maximum peak design flow of more than 2,000 gallons per day of domestic
						  sewage
5E4
Domestic Wastewater Treatment Plant
						  Disposal Facilities -Dispose of treated domestic waste after treatment to at
						  least secondary treatment standards
5E5
Small Domestic Subsurface Fluid
						  Distribution Systems -Receive less than 2,000 gallons per day as an average of
						  a typical week, of domestic sewage with only primary treatment in a septic
						  tank. These systems are designed to accept more than 2,000 gallons per day at a
						  peak and are not small wastewater systems. No class 5E5 system has a required
						  design capacity in excess of 5,000 gallons per day
MISCELLANEOUS CLASS V FACILITIES
5F1
Cathodic Protection Facilities -Facilities
						  constructed with coke breeze and dust control oil for use as a permanent anode
						  in a cathodic protection system for a fluid conveyor system or fluid
						  containment system composed of metallic material
5F2
All other facilities that inject fluids
						  into or above an underground source of drinking water which do not fall into
						  Classes I, II, III, or IV injection facilities