Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 17 - STORAGE TANKS › Part A - STORAGE TANK SYSTEMS INTRODUCTION › Section 17-5 - Definitions

Current through July 13, 2024
The following definitions supplement those found in
					 W.S.
					 35-11-103, the "Environmental Quality Act,
					 and W.S. W.S.
					 W.S.
					 35-11-1415, the "Storage Tank Act of
					 2007."
(a) "Above ground release"
				  means any release to the surface of the land or to surface water. This
				  includes, but is not limited to, releases from the above ground portion of any
				  regulated storage tank system and above ground releases associated with
				  overfills and transfer operations as the regulated substance moves to or from
				  any regulated storage tank system.
(b) "ALLD" means an automatic line leak detector. This
				  is a device that either restricts the flow through a line or sounds an audible
				  or visible alarm if the connected piping has a leak in it.
(c) "ANSI" means the American National Standards
				  Institute 25 West 43rd Street, Forth Floor, New
				  York, NY 10036, telephone: (212) 642-4900.
(d) "API" means the American Petroleum Institute ,
				  1220 L Street NW, Washington, DC 20005, telephone: (202)682-8000.
(e) "AST" means an above ground storage tank
				  as defined by W.S. W.S.
				  W.S.
				  35-11-1415(a)(xi) which is
				  used by a fuel dealer to dispense gasoline or diesel to the public.
(f) "AST System" means the above ground
				  storage tank and all connected piping.
(g) "ASTM" means the American Society for Testing and
				  Materials, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA
				  19428-2959 (610) 832-9585, (610) 832-9555 (FAX).
(h) "Ancillary equipment" means any devices including,
				  but not limited to such devices as piping, fittings, flanges, valves, and
				  pumps, used to distribute, meter, or control the flow of regulated substances
				  to and from a storage tank.
(i)
				  "Below ground release" means any release to the subsurface of the land and to
				  groundwater. This includes, but is not limited to, releases from the below
				  ground portions of a storage tank system and below ground releases associated
				  with overfills and transfer operations as the regulated substance moves to or
				  from a storage tank.
(j)
				  "Biodiesel" means a fuel composed of mono-alkyl esters of long fatty chain
				  acids derived from vegetable oils or animal fats, meeting the requirements of
				  ASTM specification D6751. "Biodiesel" is interchangeable with Diesel for all
				  purposes of this chapter.
(k)
				  "CAP" means a "corrective action plan" designed to restore a site contaminated
				  by regulated substances from a storage tank release to a condition which is
				  protective of the public health and safety and consistent with published
				  standards found in this chapter.
(l) "CP" means cathodic protection which is a
				  technique to prevent corrosion of a metal surface by making that surface the
				  cathode of an electrochemical cell. CP may be provided by either galvanic
				  anodes or impressed current.
(m)
				  "CP tester" means a person who can demonstrate an understanding of the
				  principles and measurements of all common types of CP systems as applied to
				  buried or submerged metal piping and tank systems. At a minimum, such persons
				  shall have education and experience in soil resistivity, stray current,
				  structure-to-soil potential, and component electrical isolation measurements of
				  buried metal piping and storage tank systems.
(n) "CERCLA" means the Comprehensive Environmental
				  Response, Compensation, and Liability Act of 1980, as amended.
(o) "Compatible" means the ability of two
				  (2) or more substances to maintain their respective physical and chemical
				  properties upon contact with one another for the design life of the tank system
				  under conditions likely to be encountered in the storage tank system.
(p) "Connected piping" means all underground
				  piping including valves, elbows, joints, unions, flanges, and flexible
				  connectors attached to a storage tank system through which regulated substances
				  flow and which routinely contains the regulated substance. The piping that
				  joins two (2) storage tank systems should be allocated equally between them for
				  purposes of determining how much piping is connected to any individual storage
				  tank system.
(q) "Contaminated
				  Site" means a site at which releases from storage tank systems have resulted in
				  concentrations of regulated substances in environmental media which exceed
				  criteria for the protection of human health or the environment.
(r) "Corrosion expert" means a person who,
				  by reason of thorough knowledge of the physical sciences and the principles of
				  engineering and mathematics acquired by a professional education and related
				  practical experience, is qualified to engage in the practice of corrosion
				  control on buried or submerged metal piping systems and metal tanks. Such a
				  person shall be accredited or certified as being qualified by the NACE or be a
				  registered professional engineer who has certification or licensing that
				  includes education and experience in corrosion control of buried or submerged
				  metal piping systems and metal tanks.
(s) "Dielectric material" means a material that does
				  not conduct direct electrical current. Dielectric coatings are used to
				  electrically isolate UST systems from the surrounding soils. Dielectric
				  bushings are used to electrically isolate portions of the underground storage
				  system from each other (e.g., tank from piping).
(t) "Drinking water equivalent level or DWEL" means
				  the maximum concentration of a contaminant established by the Wyoming
				  Department of Environmental Quality, Water Quality Division, pursuant to this
				  chapter or Chapter 8, Water Quality Rules and Regulations, Quality Standards
				  for Wyoming Groundwaters, for which no known or anticipated adverse effects on
				  human health will occur.
(u)
				  "Ethanol" means an alcohol derived from the fermentation of sugar, grain, or
				  other biomass and used as fuel for internal combustion engines. Ethanol is
				  usually denatured using gasoline, petroleum condensate, or some other petroleum
				  prior to being marketed for fuel. For purposes of this chapter, "Ethanol" will
				  be treated interchangeably with "gasoline."
(v) "Emergency" means a situation where replacement or
				  retrofit of ancillary equipment to an existing storage tank system because of a
				  sudden release or existing ancillary equipment failure is essential to
				  continued operation of any facility and the owner and/or operator can easily
				  and quickly replace or retrofit the equipment to remain in operation.
(w) "Excavation zone" means the volume
				  containing the tank system and backfill material bounded by the ground surface,
				  walls, and floor of the pit and trenches into which the UST system is placed at
				  the time of installation.
(x)
				  "Free product" means a regulated substance that is present as a nonaqueous
				  phase liquid (e.g., liquid not dissolved in water).
(y) "Hazardous substance UST system" means an UST
				  system that contains a hazardous substance listed in Appendix A of this
				  chapter, (but not including any substance regulated as a hazardous waste under
				  Subtitle C of the Resource conservation and Recovery Act of 1984) or any
				  mixture of such substances and petroleum, and which is not a petroleum UST
				  system.
(z) "Heating oil" means
				  petroleum that is No. 1, No. 2, No. 4-light, No. 4-heavy, No. 5-light, No.
				  5-heavy, and No. 6 technical grades of fuel oil; other residual fuel oils
				  (including Navy Special Fuel Oil and Bunker C); and other fuels when used as
				  substitutes for one of these fuel oils. Heating oil is typically used in the
				  operation of heating equipment, boilers, or furnaces.
(aa) "Hydraulic lift tank" means a tank holding
				  hydraulic fluid for a closed loop mechanical system that uses compressed air or
				  hydraulic fluid to operate lifts, elevators, or other similar
				  devices.
(bb) "Licensed Operator"
				  means a human being, employed by the "Operator," who is in responsible charge
				  of the storage tanks at one or more locations. "Licensed Operator" refers to
				  the holder of any of the licenses referred to in Section 46 of this
				  chapter.
(cc) "Maintenance" means
				  the normal operational upkeep to prevent a storage tank system from releasing a
				  regulated substance.
(dd) "Maximum
				  contaminant level or MCL" means the maximum allowed concentration of a
				  contaminant established by the U.S. Environmental Protection Agency under the
				  Safe Drinking Water Act and published in 40 CFR Part 141.
(ee) "Minimum Site Assessment" or "MSA" means a
				  limited subsurface investigation performed at a storage tank facility to
				  determine whether a regulated substance has been released from a storage tank
				  system(s) which has caused, or is causing, soil and/or ground water
				  contamination that exceeds applicable standards.
(ff) "NACE" means the National Association of
				  Corrosion Engineers 1440 South Creek Drive, P.O. Box 201009, Houston, TX
				  77216-1009 telephone (281) 228-6200, FAX (281) 228-6300.
(gg) "NFPA" means the National Fire Protection
				  Association, Batterymarch Park, Quincy, MA 02269, telephone:
				  (800)344-3555.
(hh) "Operational
				  life" means the period beginning when installation of the storage tank system
				  has commenced until the time the storage tank system is properly closed under
				  Part G.
(ii) "Overfill release"
				  means a release that occurs when a storage tank system is filled beyond its
				  capacity resulting in a discharge of the regulated substance to the
				  environment.
(jj) "PEI" means the
				  Petroleum Equipment Institute , P O Box 2380, Tulsa, OK 74101, telephone:
				  (918)494-9696.
(kk) "Pipe or
				  piping" means a hollow cylinder or tubular conduit that is constructed of
				  non-earthen materials.
(ll) "RCRA"
				  means the Resource Conservation and Recovery Act of 1984, as amended.
(mm) "Repair" means to restore a tank or
				  storage tank system component that has caused a release of a regulated
				  substance from the storage tank system.
(nn) "STI" means the Steel Tank Institute , 570
				  Oakwood Road, Lake Zurich, IL 60047, telephone: (847) 438-8265.
(oo) "Statistical Inventory Reconciliation"
				  or "SIR" means a method using statistics as well as simple inventory
				  reconciliation to determine if a tank system is leaking. SIR providers must use
				  a method which has been approved in writing for use in the UST program by the
				  Environmental Protection Agency.
(pp) "Storage Tank" means either a regulated above
				  ground storage tank or an underground storage tank.
(qq) "Substantial modification" means the addition or
				  retrofit (not routine maintenance) of any fundamental portion of a storage tank
				  system which would affect the daily operation of the storage tank system,
				  including, but not limited to, CP, internal or external piping system(s),
				  liners, leak detection equipment, spill and overfill controls, manhole
				  installation, etc., to improve or upgrade the storage tank system. Substantial
				  modifications also include the addition of canopies, new electrical conduits,
				  and other items which may not be directly related to the storage tank system,
				  but where the construction could adversely affect the storage tank
				  system.
(rr) "Upgrade" means the
				  addition or retrofit of some systems such as CP, lining, spill and overfill
				  controls, or secondary containment systems, to improve the ability of a storage
				  tank system to prevent the release of a regulated substance.
(ss) "UST" means underground storage
				  tank.
(tt) "UST system" means an
				  underground storage tank, connected underground piping, underground ancillary
				  equipment, and a containment system, if any.
(uu) "UL" means the Underwriters Laboratories, Inc. ,
				  333 Pfingsten Road, Northbrook, IL 60062, telephone: (631) 271-6200.
(vv) "Wastewater treatment tank" means a
				  tank that is designed to receive and treat an influent wastewater through
				  physical, chemical, or biological methods.