STORAGE TANK REGULATIONS
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Code of Colorado Regulations › 1100 Department of Labor and Employment › 1101 Division of Oil and Public Safety › 7 CCR 1101-14
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DEPARTMENT OF LABOR AND EMPLOYMENT
Division of Oil and Public Safety
STORAGE TANK REGULATIONS
7 CCR 1101-14
[Editor’s Notes follow the text of the rules at the end of this CCR Document.]
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ARTICLE 1
GENERAL PROVISIONS
Section 1-1
Statement of Basis and Purpose
These regulations are promulgated to establish rules for the design, installation, registration, construction,
and operation of storage tanks used to store regulated substances (including petroleum), responses to
releases of regulated substances from these tanks, and to describe the financial responsibility of storage
tank owner/operators. The main purpose of these regulations is to reduce damage to the environment
and risk to the public caused by leaking petroleum storage tanks and to mitigate such damage effectively
when it occurs.
These regulations do not apply to material classified as hazardous wastes under Subtitle C of the U.S.
Solid Waste Disposal Act.
The amendment to Article 9 of these regulations is developed pursuant to the Colorado Revised Statutes
8-20.5-103(9) that created the Petroleum Cleanup and Redevelopment Fund. The rules are designed to
establish the implementation and operational guidelines of this fund.
Section 1-2
Technical Rationale
The technical requirements of these regulations are supported by many studies made by petroleum
industry associations, the National Fire Protection Association (NFPA), the American Society of Testing
and Materials (ASTM), and by or at the behest of the U.S. Environmental Protection Agency (EPA). The
requirements represent the consensus of informed persons with regard to the best methods for reducing
the hazards posed by storage tanks to acceptable levels.
Section 1-3
Statutory Authority
The amendments to these regulations have been created pursuant to Title 8 Article 20 Section 102 and
Article 20.5 Sections 202 and 302 of the Colorado Revised Statutes (C.R.S.)
tal Protection Agency (EPA). The
requirements represent the consensus of informed persons with regard to the best methods for reducing
the hazards posed by storage tanks to acceptable levels.
Section 1-3
Statutory Authority
The amendments to these regulations have been created pursuant to Title 8 Article 20 Section 102 and
Article 20.5 Sections 202 and 302 of the Colorado Revised Statutes (C.R.S.). The design, construction,
location, installation, and operation of liquid fuel systems and equipment and the handling of liquid fuels
shall conform to the minimum standards as prescribed by the applicable sections of NFPA 30 “Flammable
and Combustible Liquids Code” and NFPA 30A "Code for Motor Fuel Dispensing Facilities and Repair
Garages".
Code of Colorado Regulations
Secretary of State
State of Colorado
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Section 1-4
Effective Date
These amended rules shall be effective on January 1, 2025. The prior editions of the combined UST/AST
regulations were published March 17, 2019; May 1, 2018; May 1, 2017; January 1, 2017; October 15,
2014; January 1, 2014; May 1, 2013; April 14, 2011; January 1, 2009; August 1, 2008; April 30, 2006;
May 30, 2005; August 1, 2004; August 1, 2002; February 1, 1999; and January 1, 1997. Prior editions of
the UST rules were published effective September 30, 1995, and December 1, 1989. Prior editions of the
AST rules were published effective September 30, 1995, and October 1, 1994. A prior edition of the
Emission Inspection rules was published effective January 1, 1990.
Section 1-5
Definitions
Terms in these regulations shall have the same definitions as those found in Articles 20 and 20.5 of Title
8 of the Colorado Revised Statutes
tive September 30, 1995, and December 1, 1989. Prior editions of the
AST rules were published effective September 30, 1995, and October 1, 1994. A prior edition of the
Emission Inspection rules was published effective January 1, 1990.
Section 1-5
Definitions
Terms in these regulations shall have the same definitions as those found in Articles 20 and 20.5 of Title
8 of the Colorado Revised Statutes. In addition, unless the context otherwise requires:
“Abandoned tank” means an underground or aboveground petroleum storage tank that the current tank
owner or operator or current property owner did not install, has never operated or leased to
another for operation, and had no reason to know was present on the site at the time of site
acquisition.
“Aboveground storage tank” (AST) means any one or a combination of containers, vessels, and
enclosures, including structures and appurtenances connected to them, constructed of non-
earthen materials, including but not limited to concrete, steel, or plastic, which provide structural
support, used to contain or dispense fuel products and the volume of which, including the pipes
connected thereto, is ninety percent or more above the surface of the ground, is not permanently
closed, and except those exempted in statute and these regulations.
“Aboveground storage tank (AST) system” means all ASTs at a facility, all the connected piping and
ancillary equipment, all loading facilities, and all containment systems if applicable.
“Alternative fuel” means a motor fuel that combines petroleum-based fuel products with renewable fuels.
“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 an UST
ipment, all loading facilities, and all containment systems if applicable.
“Alternative fuel” means a motor fuel that combines petroleum-based fuel products with renewable fuels.
“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 an UST.
“ASTM International (ASTM)” means an international voluntary consensus standards organization formed
for the development of standards on characteristics and performance of materials, products,
systems, services, and the promotion of related knowledge.
“Atmospheric tank” is a storage tank that has been designed to operate at pressures from atmospheric
through 0.5 psig (760 mm Hg through 780 mm Hg) measured at the top of the tank.
“Bodily injury” shall have the meaning given to this term by applicable Colorado state law; however, this
term shall not include those liabilities which, consistent with standard insurance industry
practices, are excluded from coverage in liability insurance policies for bodily injury.
“Bulk plant” is that portion of a property where liquids are received by tank vessel, pipelines, tank car, or
tank vehicle and are stored or blended in bulk for the purpose of distributing such liquids by tank
vessel, pipeline, tank car, tank vehicle, portable tank or container. [Note: A bulk plant is normally
a wholesale fuel facility where petroleum products are stored prior to resale or redistribution.]
“Calendar days” means consecutive days including weekends and nationally recognized holidays.
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ibuting such liquids by tank
vessel, pipeline, tank car, tank vehicle, portable tank or container. [Note: A bulk plant is normally
a wholesale fuel facility where petroleum products are stored prior to resale or redistribution.]
“Calendar days” means consecutive days including weekends and nationally recognized holidays.
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“Cathodic protection” is a technique to prevent corrosion of a metal surface by making that surface the
cathode of an electrochemical cell. For example, an UST or AST system can be cathodically
protected through the application of either galvanic anodes or impressed current.
“Cathodic protection tester” means a person who can demonstrate an understanding of the principles and
measurements of all common types of cathodic protection systems as applied to buried or
submerged metal piping and UST and AST systems. At a minimum, such persons must have
education and experience in soil resistivity, stray current, structure-to-soil potential, and
component electrical isolation measurements of buried metal piping and UST and AST systems.
“Certificate of conformance” means a document issued by the national type evaluation program
constituting evidence of conformance of a weighing and measuring device with the requirements
of the National Institute of Standards and Technology (NIST) Handbook 44.
“Certificate of Eligibility” is a document that entitles the bearer to participate in the Fund without further
determination of compliance by the Director, if that bearer is a mortgagee who has acquired, by
foreclosure or receipt of a deed in lieu of foreclosure, property on which the petroleum storage
tanks covered by the certificate are located.
“CFR” Code of Federal Regulations is the codification of the general and permanent rules published in
the Federal Register by the departments and agencies of the Federal Government
“Change in service” means continued use of an UST or AST to store a non-regulated substance
receipt of a deed in lieu of foreclosure, property on which the petroleum storage
tanks covered by the certificate are located.
“CFR” Code of Federal Regulations is the codification of the general and permanent rules published in
the Federal Register by the departments and agencies of the Federal Government
“Change in service” means continued use of an UST or AST to store a non-regulated substance.
“Chemicals of concern” (COCs) are chemical compounds that have been identified for evaluation due to
specific risks to human health and/or the environment.
“Committee” means the Petroleum Storage Tank Committee created in C.R.S. § 8-20.5-104.
“Compatible” means the ability of two 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.
“Connected piping” means all piping including valves, elbows, joints, flanges, and flexible connectors
attached to a tank system through which regulated substances flow. For the purpose of
determining how much piping is connected to any individual AST or UST system, the piping that
joins two systems should be allocated equally between them.
“Containment sump” means a liquid-tight container that protects the environment by containing leaks and
spills of regulated substances from piping, dispensers, pumps and related components in the
containment area. Containment sumps may be single walled or secondarily contained and
located at the top of tank (tank top or submersible turbine pump sump), underneath the dispenser
(under-dispenser containment sump), or at other points in the piping run (transition or
intermediate sump).
“Contamination” means the presence of a regulated substance at or below ground that originated from a
regulated storage tank system
ainment sumps may be single walled or secondarily contained and
located at the top of tank (tank top or submersible turbine pump sump), underneath the dispenser
(under-dispenser containment sump), or at other points in the piping run (transition or
intermediate sump).
“Contamination” means the presence of a regulated substance at or below ground that originated from a
regulated storage tank system.
“Corrosion expert” means a person who, by reason of thorough knowledge of the physical sciences and
the principles of engineering and mathematics acquired by 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 must be accredited or certified
as being qualified by the National Association of Corrosion Engineers 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.
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“Dielectric material” means a material that does not conduct direct electrical current. Dielectric coatings
are used to electrically isolate systems from the surrounding soils. Dielectric bushings are used to
electrically isolate portions of the system (e.g., tank from piping).
“Dispenser” means equipment that dispenses regulated substances from the storage tank system.
“Dispenser system” means the dispenser and the equipment necessary to connect the dispenser to the
storage tank system.
“Director” means the Director of the Division of Oil and Public Safety of the Colorado Department of Labor
and Employment or any designees thereof which may include certain employees of the Division
of Oil and Public Safety of the Colorado Department of Labor and Employment or other persons.
“Downgradient” is in the direction of maximum decreasing static head
dispenser to the
storage tank system.
“Director” means the Director of the Division of Oil and Public Safety of the Colorado Department of Labor
and Employment or any designees thereof which may include certain employees of the Division
of Oil and Public Safety of the Colorado Department of Labor and Employment or other persons.
“Downgradient” is in the direction of maximum decreasing static head.
“Electrical equipment” means underground equipment that contains dielectric fluid that is necessary for
the operation of equipment such as transformers and buried electrical cable.
“Electrolyte” means the soil or liquid adjacent to and in contact with the systems, including the moisture
and other chemicals contained in it; the electrically conductive material between the tank and its
environment;
“Excavation zone” means the volume containing the UST 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.
“Exposure pathway” is the course that a chemical of concern takes from a source area to a point of
exposure. An exposure pathway describes a unique mechanism by which a person or sensitive
environment is assumed to be exposed to a chemical of concern. Each exposure pathway
includes a source, an exposure route, and a point of exposure. If the exposure point differs from
the source, transport or exposure media (e.g., air, water, dust) are also included. All exposure
pathways are assumed to be complete unless an exposure pathway elimination criteria is
demonstrated. Exposure pathway elimination criteria are listed in the Owner/Operator Guidance
Document.
“Farm tank” is a tank located on a tract of land devoted to the production of crops or raising animals,
including fish, and associated residences and improvements. A farm tank must be located on the
farm property. “Farm” includes fish hatcheries, rangeland and nurseries with growing operations
s
demonstrated. Exposure pathway elimination criteria are listed in the Owner/Operator Guidance
Document.
“Farm tank” is a tank located on a tract of land devoted to the production of crops or raising animals,
including fish, and associated residences and improvements. A farm tank must be located on the
farm property. “Farm” includes fish hatcheries, rangeland and nurseries with growing operations.
“Financial reporting year” means the latest consecutive twelve-month period for which any report used to
support a financial test is prepared. “Financial reporting year” may thus comprise a fiscal or a
calendar year period.
“Fire resistant tank” is an atmospheric single or double-walled AST with thermal insulation that has been
evaluated for resistance to physical damage and for limiting the heat transferred to the primary
tank when exposed to a hydrocarbon pool fire, and is listed in accordance with UL 2080 or an
equivalent test procedure..
“Flow-through process tank” is a tank that forms an integral part of a production process through which
there is a steady, variable, recurring, or intermittent flow of materials during the operation of the
process. Flow-through process tanks do not include tanks used for the storage of materials prior
to their introduction into the production process or for the storage of finished products or by-
products from the production process.
“Fund” means the Petroleum Storage Tank Fund (PSTF) created in C.R.S. § 8-20.5-103.
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of the
process. Flow-through process tanks do not include tanks used for the storage of materials prior
to their introduction into the production process or for the storage of finished products or by-
products from the production process.
“Fund” means the Petroleum Storage Tank Fund (PSTF) created in C.R.S. § 8-20.5-103.
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“Gathering lines” means any pipeline, equipment, facility, or building used in the transportation of oil or
gas during oil or gas production or gathering operations.
“Good Engineering Practice”, “Good Engineering Standards”, and “Nationally Recognized Standard”
means in accordance with standards developed by nationally recognized laboratories or
associations such as: Underwriters Laboratory (U.L.), American National Standards Institute
(ANSI), American Petroleum Institute (API), American Society for Testing and Materials (ASTM),
American Society of Mechanical Engineers (ASME), Steel Tank Institute (STI), Association for
Materials Protection and Performance (AMPP), or the National Fire Protection Association
(NFPA).
“Hazardous substance UST system” means an UST system that contains a hazardous substance defined
in section 101(14) of the Comprehensive Environmental Response, Compensation and Liability
Act of 1980 (but not including any substance regulated as a hazardous waste under subtitle C) or
any mixture of such substances and petroleum, and which is not a petroleum UST system.
“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.
“Hydraulic conductivity” is the coefficient of proportionality describing the rate at which water can move
through a permeable medium
. 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.
“Hydraulic conductivity” is the coefficient of proportionality describing the rate at which water can move
through a permeable medium.
“Hydraulic gradient” is the slope of the water table in the direction of groundwater flow. This slope is
typically expressed as a unit change in water table elevation per unit horizontal distance (e.g.
ft/ft).
“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, and other similar devices.
“Imminent threat to human health or safety or the environment” means a condition that creates a
substantial probability of harm, when the probability and potential extent of harm make it
reasonably necessary to take immediate action to prevent, reduce, or mitigate the actual or
potential damages to human health or safety or the environment.
“Installation of a new motor fuel dispenser system” means the installation of a new motor fuel dispenser
and the equipment necessary to connect the dispenser to the system. It does not mean the
installation of a motor fuel dispenser installed separately from the equipment needed to connect
the dispenser to the tank system. For purposes of these rules, the equipment necessary to
connect the motor fuel dispenser to the tank system may include check valves, shear valves,
unburied risers or flexible connectors, or other transitional components that are beneath the
dispenser and connect the dispenser to the underground piping.
“Insurer” or “qualified insurer” means an insurer or group that is authorized to transact the business of
insurance or authorized to provide insurance as an excess or surplus lines insurer in Colorado
em may include check valves, shear valves,
unburied risers or flexible connectors, or other transitional components that are beneath the
dispenser and connect the dispenser to the underground piping.
“Insurer” or “qualified insurer” means an insurer or group that is authorized to transact the business of
insurance or authorized to provide insurance as an excess or surplus lines insurer in Colorado.
Light non-aqueous phase liquid” (LNAPL) refers to a regulated organic liquid, such as gasoline or diesel
fuel, that exists as a separate phase and is less dense than water and immiscible in water.
“Liquid” is any material that has a fluidity greater than that of 300 penetration asphalt when tested in
accordance with ASTM Standard D5, Test for Penetration for Bituminous Materials. When not
otherwise identified, the term “liquid” shall mean both flammable and combustible liquids.
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[Note 1: Class I flammable liquids include all grades of Gasoline, and most motor fuels blended
using alcohol and MTBE (methyl-tertiary-butyl-ether).]
[Note 2: Class II combustible liquids include #1 and #2 Diesel Fuels, #1 and #2 Heating Oil,
Kerosene, and Jet-A grade Jet fuel.]
[Note 3: Class III combustible liquids include most Lubricating Oils, and Heavy Fuel oils.]
“Liquid, combustible” is a liquid having a flash point at or above 100°F (37.8°C). Combustible Liquids are
classified as follows:
(1)
CLASS II liquids have a flash point at or above 100°F (37.8°C) and below 140°F (60°C).
(2)
CLASS IIIA liquids have a flash point at or above 140°F (60°C) and below 200°F (93°C).
(3)
CLASS IIIB liquids have a flash point at or above 200°F (93°C).
“Liquid, flammable” is a liquid having a flash point below 100°F (37.8°C) and having a Reid vapor
pressure not exceeding 40 psia (2068 mmHg) at 100°F (37.8°C). Flammable Liquids are
classified as Class I liquids. Class I liquids are further subclassified as follows:
ve a flash point at or above 140°F (60°C) and below 200°F (93°C).
(3)
CLASS IIIB liquids have a flash point at or above 200°F (93°C).
“Liquid, flammable” is a liquid having a flash point below 100°F (37.8°C) and having a Reid vapor
pressure not exceeding 40 psia (2068 mmHg) at 100°F (37.8°C). Flammable Liquids are
classified as Class I liquids. Class I liquids are further subclassified as follows:
(1)
CLASS IA liquids have a flash point below 73°F (22.8°C) and a boiling point below 100°F
(37.8° C).
(2)
CLASS IB liquids have a flash point below 73°F (22.8°C) and a boiling point at or above
100°F (37.8°C).
(3)
CLASS IC liquids have a flash point at or above 73°F (22.8°C) and below 100°F (37.8°C).
“Liquid trap” means sumps, well cellars, and other traps used in association with oil and gas production,
gathering, and extraction operations (including gas production plants), for the purpose of
collecting oil, water, and other liquids. These liquid traps may temporarily collect liquids for
subsequent disposition or reinjection into a production or pipeline stream, or may collect and
separate liquids from a gas stream.
“Marine service station” is that portion of a property where liquids used as fuels are stored and dispensed
from fixed equipment on shore, piers, wharves, or floating docks into the fuel tanks of self-
propelled craft, including all facilities used in connection therewith.
“Media” are intervening substances through which something is transmitted or carried (e.g. soil, water, or
air).
“Mortgagee” refers to a mortgagee or the holder of evidence of debt secured by a mortgage or deed of
trust.
“Motor fuel” means petroleum or a petroleum-based substance that is motor gasoline, aviation gasoline,
No. 1 or No. 2 diesel fuel, fuel products as defined in C.R.S. § 8-20.5-101(6), or any grade of
gasohol, and is typically used in the operation of a motor engine
(e.g. soil, water, or
air).
“Mortgagee” refers to a mortgagee or the holder of evidence of debt secured by a mortgage or deed of
trust.
“Motor fuel” means petroleum or a petroleum-based substance that is motor gasoline, aviation gasoline,
No. 1 or No. 2 diesel fuel, fuel products as defined in C.R.S. § 8-20.5-101(6), or any grade of
gasohol, and is typically used in the operation of a motor engine.
“Motor fuel dispensing facility” means that portion of a property where motor fuels are stored and
dispensed from fixed equipment into the fuel tanks of motor vehicles or marine craft or into
approved containers, including all equipment used in connection therewith.
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(1)
“Fleet vehicle motor fuel dispensing facility” means a motor fuel dispensing facility at a
commercial, industrial, governmental, or manufacturing property where motor fuels are
dispensed into the fuel tanks of motor vehicles that are used in connection with the
business or operation of that property by persons within the employ of such business or
operation.
“Net worth” means the assets that remain after deducting liabilities; such assets do not include intangibles
such as goodwill and rights to patents or royalties. For purposes of this definition, “assets” means
all existing economic benefits obtained or controlled by an owner/operator.
“Noncommercial purposes” with respect to motor fuel at farms and residences means not for resale.
“On Demand Mobile Fueling” means retail dispensing of Class I and Class II liquids from a mobile fueling
vehicle complying with NFPA 385, with chassis mounted tanks that do not exceed an aggregate
capacity of 1200 gallons, or a vehicle with chassis-mounted tanks, each of which does not
exceed 110 gallons, and that does not exceed an aggregate capacity of 1200 gallons, or a
vehicle that carries a maximum of 60 gallons of motor fuel in listed metal safety cans not
exceeding 5.3 gallons in capacity, into the fuel tank of a motor vehicle
ith chassis mounted tanks that do not exceed an aggregate
capacity of 1200 gallons, or a vehicle with chassis-mounted tanks, each of which does not
exceed 110 gallons, and that does not exceed an aggregate capacity of 1200 gallons, or a
vehicle that carries a maximum of 60 gallons of motor fuel in listed metal safety cans not
exceeding 5.3 gallons in capacity, into the fuel tank of a motor vehicle.
“Operational life” refers to the period beginning when installation of the tank system has commenced until
the time the tank system is properly closed.
“Operator” means any person in control of, or having responsibility for the daily operation of an
underground or aboveground storage tank system.
“Orphaned tank” means an underground storage tank that is owned or operated by an unidentified owner
or is no longer in use and was not closed, and the property has changed ownership prior to
December 22, 1988, and such property is no longer used to dispense fuels.
“Out of service” means that the tank is not being operated in accordance with its intended purpose.
“Overfill” is a release that occurs when a tank is filled beyond its capacity, resulting in a discharge of the
regulated substance to the environment.
“Owner” means:
(1)
In the case of an underground storage tank in use on or after November 8, 1984, or
brought into use after that date, any person who owns an underground storage tank
system used for the storage, use, or dispensing of regulated substances;
(2)
In the case of an underground storage tank system in use before November 8, 1984, but
no longer in use on or after November 8, 1984, any person who owned such tank
immediately before the discontinuation of its use; or
(3)
Any person who owns an aboveground storage tank.
ate, any person who owns an underground storage tank
system used for the storage, use, or dispensing of regulated substances;
(2)
In the case of an underground storage tank system in use before November 8, 1984, but
no longer in use on or after November 8, 1984, any person who owned such tank
immediately before the discontinuation of its use; or
(3)
Any person who owns an aboveground storage tank.
(4)
Regarding reporting and responding to releases of regulated substances, Owner means
the person who owned the tank system at the time of the release. The term “owner” does
not include any person who, without participating in the management of an underground
storage tank and otherwise not engaged in petroleum production, refining, and marketing,
holds indicia of ownership primarily to protect a security interest in or lien on the tank or
the property where the tank is located.
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“Owner(s)/operator(s) or O/O” means that the task to which this phrase is attached may be performed by
either the owner or the operator. If neither the owner nor the operator performs the task, both
shall be in violation of these regulations. Duplication of the task is not required.
“Person” means an individual, trust, firm, joint stock company, federal agency, corporation, state,
municipality, commission, political subdivision of a state, or any interstate body. “Person” also
includes a consortium, a joint venture, a commercial entity, and the United States Government.
“Petroleum” means crude oil or any fraction thereof that is liquid at standard conditions of temperature
and pressure (60 degrees Fahrenheit and 14.7 pounds per square inch absolute).
“Pipe” or “Piping” means a hollow cylinder or tubular conduit that is constructed of non-earthen materials
and in accordance with NFPA or other nationally recognized piping standards for petroleum
storage tanks
ment.
“Petroleum” means crude oil or any fraction thereof that is liquid at standard conditions of temperature
and pressure (60 degrees Fahrenheit and 14.7 pounds per square inch absolute).
“Pipe” or “Piping” means a hollow cylinder or tubular conduit that is constructed of non-earthen materials
and in accordance with NFPA or other nationally recognized piping standards for petroleum
storage tanks. Piping routinely contains and conveys regulated substances from the underground
tank(s) to the dispenser(s) or other end-use equipment. Such piping includes any elbows,
couplings, unions, valves, or other in-line fixtures that contain and convey regulated substances
from the underground tank(s) to the dispenser(s). This definition does not include vent, vapor
recovery, or fill lines not connected to remote fills.
“Pipeline facilities (including gathering lines)” are new and existing pipe rights-of-way and any associated
equipment, facilities, or buildings.
“Point of exposure “ (POE) is the location at which a person or sensitive environment is assumed to be
exposed to a chemical of concern. POEs for benzene, toluene, ethylbenzene, total xylene, and
naphthalene are: property boundaries, surficial soils, subsurface utilities, structures, groundwater
wells, surface water, and sensitive environments. POEs for MTBE are: water supply wells that are
used for human consumption and surface water features that are used for human consumption.
“Product deliverer” means any person who delivers or deposits product into an UST. This term may
include major oil companies, jobbers, petroleum transportation companies, or other product
delivery entities.
“Property damage” shall have the meaning given this term by applicable Colorado laws. This term shall
not include those liabilities, which, consistent with standard insurance industry practices, are
excluded from coverage in liability insurance policies for property damage
T. This term may
include major oil companies, jobbers, petroleum transportation companies, or other product
delivery entities.
“Property damage” shall have the meaning given this term by applicable Colorado laws. This term shall
not include those liabilities, which, consistent with standard insurance industry practices, are
excluded from coverage in liability insurance policies for property damage. However, such
exclusions for property damage shall not include corrective action associated with releases from
tanks, which are covered by the policy.
“Protected tank” is an atmospheric AST with integral secondary containment and thermal insulation that
has been evaluated for resistance to physical damage and for limiting the heat transferred to the
primary tank when exposed to a hydrocarbon pool fire and is listed in accordance with UL 2085
Standard for Protected Aboveground Tanks for Flammable and Combustible Liquids or an
equivalent test procedure.
“Provider of financial assurance” means an entity that provides financial assurance to an owner/operator
of an UST through mechanisms including but not limited to being an insurer, an issuer of a letter
of credit, or the trustee of a trust fund.
“Red Tag” means a tag, device, or mechanism on the tank’s fill pipes that clearly identifies an UST as
ineligible for product delivery. The tag or device is easily visible to the product deliverer and
clearly states and conveys that it is unlawful to deliver to, deposit into, or accept product into the
ineligible UST. The tag, device, or mechanism is generally tamper-resistant.
“Refined Fuels Vehicle Tank Meter (VTM)” means a meter mounted on a refined fuels delivery tank
vehicle, including those used for the measurement and delivery of liquid fuel products.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
awful to deliver to, deposit into, or accept product into the
ineligible UST. The tag, device, or mechanism is generally tamper-resistant.
“Refined Fuels Vehicle Tank Meter (VTM)” means a meter mounted on a refined fuels delivery tank
vehicle, including those used for the measurement and delivery of liquid fuel products.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
9
“Reimbursement” means an assignment of money from the Fund to reimburse a person for approved
costs incurred in remediating petroleum contamination.
“Registered Service Agency (RSA)” means any agency, firm, company, or corporation that for hire,
award, commission or any other payment of any kind installs, services, repairs, or reconditions a
commercial weighing or measuring device and that voluntarily registers with the division. Under
agency registration, identification of individual servicepersons shall be required.
“Regulated substance” for UST systems has the same meaning as in C.R.S. § 8-20.5-101(13) as follows:
(1)
Any substance defined in Section 101 (14) of the federal “Comprehensive Environmental
Response, Compensation, and Liability Act of 1980”, as amended, but not including any
substance regulated as a hazardous waste under subtitle (C) of Title II of the federal
“Resource Conservation and Recovery Act of 1976”, as amended.
(2)
Petroleum, including crude oil or any fraction thereof, that is liquid at standard conditions
of temperature and pressure (60 degrees Fahrenheit and 14.7 pounds per square inch
absolute).
(3)
Alternative fuel
(4)
Renewable fuel
“Regulated substance” for AST systems means regulated fuel products as defined in C.R.S. § 8-20.5-
101(6), including alternative fuels and renewable fuels as defined in CRS 8-20.5-101(2.5) and
(14.5) as follows:
raction thereof, that is liquid at standard conditions
of temperature and pressure (60 degrees Fahrenheit and 14.7 pounds per square inch
absolute).
(3)
Alternative fuel
(4)
Renewable fuel
“Regulated substance” for AST systems means regulated fuel products as defined in C.R.S. § 8-20.5-
101(6), including alternative fuels and renewable fuels as defined in CRS 8-20.5-101(2.5) and
(14.5) as follows:
(1)
All gasoline, aviation gasoline, diesel, aviation turbine fuel, jet fuel, fuel oil, biodiesel,
biodiesel blends, kerosene, all alcohol blended fuels, gas or gaseous compounds, and
other volatile, flammable, or combustible liquids, produced, compounded, and offered for
sale or used for the purpose of generating heat, light, or power in internal combustion
engines or fuel cells, for cleaning or for any other similar usage.
(2)
Alternative fuel
(3)
Renewable fuel
“Release” means any spilling, leaking, emitting, discharging, escaping, leaching or disposing of a
regulated substance from a regulated tank system into the environment.
“Release detection” means determining whether a release of a regulated substance has occurred from
the UST or AST system into the environment or a leak has occurred into the interstitial space
between the UST or AST system and its secondary barrier or secondary containment around it.
“Remediation” means actions taken to reduce concentrations of chemicals of concern (including natural
attenuation), or prevent migration of chemicals of concern to POEs. Remediation shall be
implemented for sites where no further action is not appropriate.
“Renewable fuel” means a motor vehicle fuel that is produced from plant or animal products or wastes, as
opposed to fossil fuel sources.
“Repair” means to restore to proper operating condition a tank, pipe, spill prevention equipment, overfill
prevention equipment, corrosion protection equipment, release detection equipment or other AST
or UST system component.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
el that is produced from plant or animal products or wastes, as
opposed to fossil fuel sources.
“Repair” means to restore to proper operating condition a tank, pipe, spill prevention equipment, overfill
prevention equipment, corrosion protection equipment, release detection equipment or other AST
or UST system component.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
10
“Replace” This term applies to underground storage tanks and piping.
For underground storage tanks – Replace means to remove an existing underground storage
tank and install a new underground storage tank.
For underground piping – Replace means to remove and put back in, any amount of piping
connected to a tank system. The secondary containment requirements for replaced piping are
triggered when a minimum of 50% or 50 feet (whichever is less) of the total length of piping
connected to a single tank is replaced. The total length of piping connected to a single tank
includes the length of piping from that tank to the farthest connected dispenser, including piping
runs between dispensers connected to that tank.
“Reportable quantity” means quantities of a released regulated substance that equal or exceed the
reportable quantity under the federal “Comprehensive Environmental Response, Compensation,
and Liability Act of 1980”, as amended, and petroleum products in quantities of twenty-five
gallons or more.
“Residential tank” is a tank located on property used primarily for dwelling purposes.
“Retail motor fuel device” (RMFD) is a device designed for the measurement and delivery of liquid fuel
products for internal combustion engines. The term “motor-fuel dispenser” means the same as
“motor-fuel device”.
“Risk-based corrective action (RBCA)” means a consistent decision making process for the assessment
and response to a petroleum release, based on the protection of human health and the
environment according to ASTM 1739
s a device designed for the measurement and delivery of liquid fuel
products for internal combustion engines. The term “motor-fuel dispenser” means the same as
“motor-fuel device”.
“Risk-based corrective action (RBCA)” means a consistent decision making process for the assessment
and response to a petroleum release, based on the protection of human health and the
environment according to ASTM 1739.
“Secondary containment” This term applies to AST and UST Systems
For AST systems secondary containment is containment which prevents any release from an
AST system from reaching land or waters outside of the containment area, and can include
remote impounding, diking, or different types of AST construction. Where underground piping is
connected to an AST, the definition of “secondary containment” for UST systems also applies to
the piping.
For UST systems secondary containment is a release prevention and release detection system
for an underground tank and/or piping. The release prevention part of secondary containment is
an underground tank and/or piping having an inner and outer barrier. Between these two barriers
is a space for monitoring. The release detection part of secondary containment is a method of
monitoring the space between the inner and outer barriers for a leak or release of regulated
substances from the underground tank and/or piping (called interstitial monitoring). This term
includes containment sumps when used for interstitial monitoring of piping.
“Secondary containment tank” is a shop-fabricated AST that includes a steel or reinforced concrete
secondary shell that will provide containment of the entire capacity of the inner tank in case of
leaks or ruptures of the inner tank and having means for monitoring the interstitial space for a
leak.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
monitoring of piping.
“Secondary containment tank” is a shop-fabricated AST that includes a steel or reinforced concrete
secondary shell that will provide containment of the entire capacity of the inner tank in case of
leaks or ruptures of the inner tank and having means for monitoring the interstitial space for a
leak.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
11
“Sensitive environment” is an area of particular environmental value where regulated petroleum
contamination could pose a greater threat than in other less sensitive areas. Sensitive
environments include: critical habitat for federally endangered or threatened species, national
parks, national monuments, national recreation areas, national wildlife refuges; national forests,
campgrounds; recreational areas, game management areas, wildlife management areas,
designated federal wilderness areas, wetlands, wild and scenic rivers, state parks, state wildlife
refuges, habitat designated for state endangered species, fishery resources, state designated
natural areas, wellhead protection areas, classified groundwater areas, and county or municipal
parks.
“Septic tank” is a water-tight covered receptacle designed to receive or process, through liquid separation
or biological digestion, the sewage discharged from a building sewer where the effluent from such
receptacle is distributed for disposal through the soil and settled solids and scum from the tank
are pumped out periodically and hauled to a treatment facility.
“Service station” is a place where motor fuels are sold to the general public for cash or credit and are
dispensed into the fuel tanks of motor vehicles or approved containers. This does not include
unattended cardlock system facilities at bulk plants which only use proprietary cards specific to
the cardlock system in question.
“Significant violation” means the failure of a person to comply with any requirement of Article 2 of 7 C.C.R.
1101-14, which includes any of the following:
h or credit and are
dispensed into the fuel tanks of motor vehicles or approved containers. This does not include
unattended cardlock system facilities at bulk plants which only use proprietary cards specific to
the cardlock system in question.
“Significant violation” means the failure of a person to comply with any requirement of Article 2 of 7 C.C.R.
1101-14, which includes any of the following:
(a)
A violation that is causing, or threatens to cause a liquid release of a regulated substance
from an UST system, including, but not limited to: the failure of any required overfill
prevention system, where the failure is causing or threatens to cause a release; or the
failure of a required spill containment structure, where the failure is causing or threatens
to cause a release to the environment due to a spill or an overfill.
(b)
A violation that impairs the ability of an UST system to detect a liquid leak or contain a
liquid release of a regulated substance in the manner required by law, including, but not
limited to: tampering with leak detection equipment so that the equipment is no longer
capable of detecting a leak at the earliest possible opportunity.
(c)
A chronic violation or a violation that is committed by a recalcitrant violator.
“Site check” means collecting soil and/or groundwater samples for laboratory analysis from locations most
likely to demonstrate the presence of a release from a regulated storage tank system.
“Source concentration” is the highest concentration, in soil and/or groundwater and /or vapor, of the
chemicals of concern.
“State inspector” is a person who is employed or authorized by the division to perform inspections of
facilities storing regulated substances
ples for laboratory analysis from locations most
likely to demonstrate the presence of a release from a regulated storage tank system.
“Source concentration” is the highest concentration, in soil and/or groundwater and /or vapor, of the
chemicals of concern.
“State inspector” is a person who is employed or authorized by the division to perform inspections of
facilities storing regulated substances.
“Storm-water or wastewater collection system” means piping, pumps, conduits, and any other equipment
necessary to collect and transport the flow of surface water run-off resulting from precipitation, or
domestic, commercial, or industrial wastewater to and from retention areas or any areas where
treatment is designated to occur. The collection of stormwater and wastewater does not include
treatment except where incidental to conveyance.
“Subsurface soils” are all soils located at a depth of greater than one meter below the ground surface.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
12
“Surface impoundment” is a natural topographic depression, man-made excavation, or diked area formed
primarily of earthen materials (although it may be lined with man-made materials) that is not an
injection well.
“Surficial soils” are all soils located from the ground surface to a depth of one meter below the ground
surface.
“System test” means a test of tank system components, including any associated delivery piping,
secondary containment, or spill control component, to identify releases of regulated substances.
Specifically, for underground tanks, underground piping, spill prevention equipment, and
containment sumps. Owners and operators must conduct tests according to the requirements for
tank tightness testing (2-3-4-2(c)), line tightness testing (2-3-4-3(a)(2)(i)), and spill prevention
equipment and containment sumps (2-3-5(a)).
“Temporary closure” means a period of time that a storage tank is empty but is not permanently closed or
has not changed service to store a non-regulated substance
ontainment sumps. Owners and operators must conduct tests according to the requirements for
tank tightness testing (2-3-4-2(c)), line tightness testing (2-3-4-3(a)(2)(i)), and spill prevention
equipment and containment sumps (2-3-5(a)).
“Temporary closure” means a period of time that a storage tank is empty but is not permanently closed or
has not changed service to store a non-regulated substance. This term does not apply when a
tank system is emptied for repair.
“Training program” means any program that provides information to and evaluates the knowledge of a
Class A, Class B, or Class C operator through testing, practical demonstration, or another
approach acceptable to the implementing agency regarding requirements for UST systems that
meet the requirements of Section 2-3-1.
“Transportation-related facilities” as used in these regulations means facilities where all ASTs with
capacities from 660 to 39,999 gallons are regulated by the USDOT.
“Trustee” is a member of a Trust that is an applicant to the Fund. A trustee can be an individual or a
company that acts on behalf of the Trust.
“Ullage” is the portion of a storage tank that does not contain liquid.
“Unattended cardlock system” is a vehicle fueling facility, which uses a mechanical or electronic method
of tracking fuel deliveries using an identification card.
“Under-dispenser containment (UDC)” means containment underneath a dispenser that will prevent leaks
from the dispenser and piping within or above the UDC from reaching soil or groundwater.
“Underground storage tank” (UST) means any one or combination of tanks, including underground pipes
connected thereto, except those exempted in statute and these regulations, that is used to
contain an accumulation of regulated substances and the volume of which, including the volume
of underground pipes connected thereto, is ten percent or more beneath the surface of the
ground and is not permanently closed
d storage tank” (UST) means any one or combination of tanks, including underground pipes
connected thereto, except those exempted in statute and these regulations, that is used to
contain an accumulation of regulated substances and the volume of which, including the volume
of underground pipes connected thereto, is ten percent or more beneath the surface of the
ground and is not permanently closed.
“Underground storage tank (UST) system” refers to an underground storage tank, connected
underground piping, underground ancillary equipment, and containment system, if any.
“Upgrade” means the addition or retrofit of some systems (such as cathodic protection, lining, modification
of the system piping, or spill and overfill controls, etc.) to improve the ability of an UST or AST
system to prevent the release of product.
“Vault” means an enclosure (other than a secondary containment tank), either above or below-grade, that
completely encloses an AST.
“Wastewater treatment tank” means a tank that is designed to receive and treat influent wastewater
through physical, chemical, or biological methods.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
13
“Working days” means consecutive days, excluding weekends and nationally recognized holidays.
Section 1-6
Glossary of Acronyms and Initializations
1,2 -DCA
1,2-Dichloroethane
5 CCR 1002-41
Colorado Code of Regulations Number 41 The Basic Standards for Groundwater
AMPP
Association for Materials Protection and Performance
ANSI
American National Standards Institute
API
American Petroleum Institute
AST
Aboveground Storage Tank
ASTM
American Society for Testing and Materials International
BTEXN
Benzene, Toluene, Ethylbenzene, Xylenes, Naphthalene
CAP
Corrective Action Plan
CC
Certificate of Conformance
CDPHE
Colorado Department of Public Health and Environment
CDWR
Colorado Division of Water Resources
CERCLA
Comprehensive Environmental Response, Compensation, and Liability Act
CFR
Code of Federal Regulations
COC
ASTM
American Society for Testing and Materials International
BTEXN
Benzene, Toluene, Ethylbenzene, Xylenes, Naphthalene
CAP
Corrective Action Plan
CC
Certificate of Conformance
CDPHE
Colorado Department of Public Health and Environment
CDWR
Colorado Division of Water Resources
CERCLA
Comprehensive Environmental Response, Compensation, and Liability Act
CFR
Code of Federal Regulations
COC
Chemicals of Concern
C.R.S.
Colorado Revised Statutes
EDB
Ethylene Dibromide
EFS
Economic Feasibility Summary
FRP
Fiberglass reinforced plastic
FR
Financial responsibility
ICC
International Code Council
LNAPL
Light Non-Aqueous Phase Liquid
LPG
Liquid petroleum gas
MRR
Monitoring and Remediation Report
MTBE
Methyl-tertiary-butyl-ether
NFA
No Further Action
NFAR
No Further Action Request
NFPA
National Fire Protection Association
NIOSH
National Institute of Occupational Safety and Health
NIST
National Institute of Standards and Technology
NOV
Notice of Violation
O/O
Owner/Operator
OPS
Division of Oil and Public Safety
PAH
Polycyclic Aromatic Hydrocarbons
PP
Pressurized Piping
POE
Point of Exposure
Psi
Pounds per square inch
Psia
Pounds per square inch absolute
Psig
Pounds per square inch gauge
PSTF
Petroleum Storage Tank Fund
RBCA
Risk-Based Corrective Action
RBSL
Risk-Based Screening Level
RMFD
Retail Motor Fuel Dispenser/Device
RD
Release Detection
SCR
Site Characterization Report
SIR
Statistical Inventory Reconciliation
SPA
State Program Approval
SPCC
Spill Prevention, Control, and Countermeasure
SSTL
Site-Specific Target Level
STP
Submersible Turbine Pump
TCAR
Tank Closure Assessment Report
TEL
Tetraethyl Lead
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
14
TPH
Total Petroleum Hydrocarbons
VP
Vapor Pressure
UDC
Under Dispenser Containment
UL
Underwriters Laboratories/Underwriters Laboratories of Canada
UST
Underground Storage Tank
USEPA
ermeasure
SSTL
Site-Specific Target Level
STP
Submersible Turbine Pump
TCAR
Tank Closure Assessment Report
TEL
Tetraethyl Lead
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
14
TPH
Total Petroleum Hydrocarbons
VP
Vapor Pressure
UDC
Under Dispenser Containment
UL
Underwriters Laboratories/Underwriters Laboratories of Canada
UST
Underground Storage Tank
USEPA
United States Environmental Protection Agency
Section 1-7
Codes, Documents or Standards incorporated by reference
The following codes, documents or standards are incorporated by reference and may be purchased from
the websites listed below the title of each Institute or Association :
American National Standards Institute (ANSI)
http://webstore.ansi.org/
Standard B31, American National Standard Code for Pressure Piping, published October 14,
2003.
American Petroleum Institute (API)
http://www.techstreet.com/api
Recommended Practice 1604, Closure of Underground Petroleum Storage Tanks, published
February 2021.
Standard 650, Welded Tanks for Oil Storage, 13th Edition, published January 2021.
Recommended Practice 1615, Installation of Underground Hazardous Substance or Petroleum
Storage Systems, published April 2011.
Recommended Practice 1621, Bulk Liquid Stock Control at Retail Outlets, published 1993.
Recommended Practice 1626, Storing and Handling Ethanol and Gasoline-Ethanol Blends at
Distribution Terminals and Filling Stations, published August 2010.
Recommended Practice 1631, Interior Lining of Existing Steel Underground Storage Tanks,
published June 2001.
Recommended Practice 1632, Cathodic Protection of Underground Petroleum Storage Tanks
and Piping Systems, published January 1996.
Standard 2015, Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks,
published January 2018.
Standard 653, Tank Inspection, Repair, Alteration, and Reconstruction, published November
2023.
Standard 2000, Venting Atmospheric and Low-Pressure Storage Tanks, published March 1,
2014
2, Cathodic Protection of Underground Petroleum Storage Tanks
and Piping Systems, published January 1996.
Standard 2015, Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks,
published January 2018.
Standard 653, Tank Inspection, Repair, Alteration, and Reconstruction, published November
2023.
Standard 2000, Venting Atmospheric and Low-Pressure Storage Tanks, published March 1,
2014.
ASTM International (ASTM)
https://www.astm.org/Standard/standards-and-publications.html
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
15
Standard D5, Test for Penetration for Bituminous Materials, published June 1, 2005.
Standard D4814-24a, Standard Specification for Automotive Spark-Ignition Engine Fuel,
published July 2024.
Standard G158, Standard Guide for Three Methods of Assessing Buried Steel Tanks, published
September 10, 1998.
Annual Book of ASTM Standards, Section 5, Petroleum Products, Lubricants, and Fossil Fuels,
published 2024.
Airlines for America (A4A)
https://publications.airlines.org
ATA Airport Fuel Facility Operations and Maintenance Guidance Manual, published April 16,
2014.
Environmental Protection Agency (EPA)
https://www.epa.gov/ust
EPA Form 50 FR 46602, published November 8, 1985.
Hazardous and Solid Waste Amendments of 1984, Public Law 98-616.
Association for Materials Protection and Performance (AMPP)
https://www.ampp.org/home
Standard Practice SP 0169, Control of External Corrosion on Underground or Submerged
Metallic Piping Systems, published 2013.
Standard Practice SP 0285, External Corrosion Control of Underground Storage Tank Systems
by Cathodic Protection, published 2011.
National Fire Protection Association (NFPA)
http://www.nfpa.org/codes-and-standards
Publication NFPA 30, Flammable and Combustible Liquids Code, published 2024.
Publication NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, published
2024.
Publication NFPA 70, National Electrical Code, published 2017
l of Underground Storage Tank Systems
by Cathodic Protection, published 2011.
National Fire Protection Association (NFPA)
http://www.nfpa.org/codes-and-standards
Publication NFPA 30, Flammable and Combustible Liquids Code, published 2024.
Publication NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, published
2024.
Publication NFPA 70, National Electrical Code, published 2017.
Publication NFPA 80, Standard for Fire Doors and Fire Windows, published 2019.
Publication NFPA 90A, Standard for the Installation of Air Conditioning and Ventilating Systems,
published 2018.
Publication NFPA 91, Standard for the Installation of Blower and Exhaust Systems for Dust,
Stock, and Vapor Removal or Conveying, published 2015.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
16
Publication NFPA 385, Standard for Tank Vehicles for Flammable and Combustible Liquids,
published 2017.
National Institute for Occupational Safety and Health (NIOSH)
https://www.cdc.gov/niosh/docs/80-106/
Criteria for a Recommended Standard, Working in Confined Spaces, DHHS (NIOSH) Publication
No.80-106, published December 1979.
National Institute of Standards and Technology
https://www.nist.gov/publications
NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for
Commercial Weighing and Measuring Devices, 2024 Edition.
NIST Handbook 130, Uniform Laws and Regulations in the Area of Legal Metrology and Engine
fuel quality, 2024 Edition.
National Leak Prevention Association (NLPA)
http://www.nlpa-online.org/standards.html
National Leak Prevention Association Standard 631, Spill Prevention, Minimum 10 Year Life
Extension of Existing Steel Underground Tanks by Lining Without the Addition of Cathodic
Protection, published 1991.
National Leak Prevention Association Standard 631, Chapter A, Entry, Cleaning, Interior
Inspection, Repair, and Lining of Underground Storage Tanks, published 1991
lpa-online.org/standards.html
National Leak Prevention Association Standard 631, Spill Prevention, Minimum 10 Year Life
Extension of Existing Steel Underground Tanks by Lining Without the Addition of Cathodic
Protection, published 1991.
National Leak Prevention Association Standard 631, Chapter A, Entry, Cleaning, Interior
Inspection, Repair, and Lining of Underground Storage Tanks, published 1991.
National Leak Prevention Association Standard 631, Chapter C, Internal Inspection of Steel
Tanks for Retrofit of Cathodic Protection, published 1991.
Petroleum Equipment Institute (PEI)
http://www.pei.org/recommended-practices-exams
Publication RP100, Recommended Practices for Installation of Underground Liquid Storage
Systems, published 2022.
Publication RP 900, Recommended Practices for the Inspection and Maintenance of UST
Systems, published 2021.
Publication RP 1200, Recommended Practices for the Testing and Verification of Spill, Overfill,
Leak Detection, and Secondary Containment Equipment at UST Facilities, published 2019.
Steel Tank Institute (STI)
http://www.steeltank.com/Publications/STISPFAStore/tabid/487/Default.aspx
STI-P3 Specification and Manual for External Corrosion Protection of Underground Steel Storage
Tanks, published July 2005.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
17
Recommended Practice R892, “Recommended Practice for Corrosion Protection of Underground
Piping Networks Associated with Liquid Storage and Dispensing Systems, published January
2006.
F922 - Specification for Permatank®, published October 2014
ACT-100® Specification F894, Specification for External Corrosion Protection of FRP Composite
Steel Underground Storage Tanks, published February 2017.
ACT-100-U® Specification F961, Specification for External Corrosion Protection of Composite
Steel Underground Storage Tanks, published November 2015.
SP001, Standard for the Inspection of Aboveground Storage Tanks, 6th Edition
ublished October 2014
ACT-100® Specification F894, Specification for External Corrosion Protection of FRP Composite
Steel Underground Storage Tanks, published February 2017.
ACT-100-U® Specification F961, Specification for External Corrosion Protection of Composite
Steel Underground Storage Tanks, published November 2015.
SP001, Standard for the Inspection of Aboveground Storage Tanks, 6th Edition.
Underwriters Laboratories/Underwriters Laboratories of Canada (UL)
https://standardscatalog.ul.com/
Standard UL 142, Standard for Steel Aboveground Tanks for Flammable and Combustible
Liquids, published December 28, 2006.
Standard UL 2080, Standard for Fire Resistant Tanks for Flammable and Combustible Liquids,
published March 14, 2000.
Standard UL 2085, Standard for Protected Aboveground Tanks for Flammable and Combustible
Liquids, published December 30, 1997.
Standard UL 971, Nonmetallic Underground Piping for Flammable Liquids, published January 2,
2004.
Standard UL 971A, Outline of Investigation for Metallic Underground Fuel Pipe, published
October 18, 2006.
Standard 58, Standard for Steel Underground Tanks for Flammable and Combustible Liquids,
published July 27, 1998.
Standard 567, Pipe Connectors for Flammable and Combustible and LP Gas, published October
22, 2004.
Standard 1316, Standard for Glass- Fiber-Reinforced Plastic Underground Storage Tanks for
Petroleum Products, Alcohols and Alcohol-Gasoline Mixtures, published April 2, 1996.
Standard 1746, External Corrosion Protection Systems for Steel Underground Storage Tanks,
published February 8, 2002.
CAN4-S603-M85, Standard for Steel Underground Tanks for Flammable and Combustible
Liquids, published 2000.
CAN4-S603.1-M85, Standard for Galvanic Corrosion Protection Systems for Underground Tanks
for Flammable and Combustible Liquids, published November 2003.
CAN4-S615-M83, Standard for Reinforced Plastic Underground Tanks for Flammable and
Combustible Liquids, published 1998.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
ammable and Combustible
Liquids, published 2000.
CAN4-S603.1-M85, Standard for Galvanic Corrosion Protection Systems for Underground Tanks
for Flammable and Combustible Liquids, published November 2003.
CAN4-S615-M83, Standard for Reinforced Plastic Underground Tanks for Flammable and
Combustible Liquids, published 1998.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
18
CAN4-S631-M84, Isolating Bushings for Steel Underground Tanks Protected with Coatings and
Galvanic Systems, published 1998.
CAN4-S633-M81, Flexible Underground Hose Connectors, published August 1999.
CAN4-S660, Standard for Nonmetallic Underground Piping for Flammable and Combustible
Liquids, published May 2008.
Guide ULC-107, Glass Fiber Reinforced Plastic Pipe and Fittings for Flammable Liquids,
published 1993.
Department of Defense (DOD)
http://www.wbdg.org/FFC/DOD/UFC/ufc_3_460_01_2010_c2.pdf
Unified Facilities Criteria (UFC) 3–460–01, Petroleum Fuel Facilities, published June 17, 2015.
Department of Defense Directive 4140.25, DOD Management Policy for Energy Commodities and
Related Services, published April 12, 2004.
Section 1-8
Inspection of incorporated codes
Interested parties may inspect the referenced incorporated materials by contacting the Division of Oil and
Public Safety at 633 17th Street, Suite 500, Denver, Colorado 80202.
Section 1-9
Later amendments not included
This rule does not include later amendments to or editions of the incorporated material.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
orporated codes
Interested parties may inspect the referenced incorporated materials by contacting the Division of Oil and
Public Safety at 633 17th Street, Suite 500, Denver, Colorado 80202.
Section 1-9
Later amendments not included
This rule does not include later amendments to or editions of the incorporated material.
CODE OF COLORADO REGULATIONS
7 CCR 1101-14
Division of Oil and Public Safety
19
ARTICLE 1.5
MOTOR FUEL DISPENSING AND PRODUCT QUALITY
The method of sale and quality of motor fuels are regulated by the Director to ensure consumer protection
and equity in the marketplace. This article lists the minimum specifications and tolerances for dispensing
equipment and motor fuel quality to ensure compliance with Colorado statutes and adopted codes and
standards. Further description of these requirements can be found in guidance documents, policies and
procedures provided by the Director.
Section 1.5-1 Applicability
(a)
The requirements of Sections 1.5-2, 1.5-3, and 1.5-4 shall apply to dispensers and product quality
at retail facilities, retail on-demand mobile fueling vehicles, and refined fuels vehicle tank meters
(VTM).
(b)
All retail and non-retail motor fuel dispensers must comply with the minimum standards as
prescribed by the applicable sections of the National Fire Protection Association (NFPA) 30A.
Section 1.5-2 Retail Motor Fuel Dispensers Inspection and Testing
(a)
All retail motor fuel dispensers (RMFD) shall be suitable for their intended use, properly installed,
and accurate, and shall be maintained in that condition by their owner/operator.
(b)
All RMFDs shall have an active National Type Evaluation Program (NTEP) Certificate of
Conformance (CC) prior to its installation or use for commercial purposes.
(c)
The division shall be notified when any new or remanufactured RMFD is placed in service at a
new or existing installation.
(1)
Notification shall be submitted using a placed-in-service report provided by the division.
ner/operator.
(b)
All RMFDs shall have an active National Type Evaluation Program (NTEP) Certificate of
Conformance (CC) prior to its installation or use for commercial purposes.
(c)
The division shall be notified when any new or remanufactured RMFD is placed in service at a
new or existing installation.
(1)
Notification shall be submitted using a placed-in-service report provided by the division.
(d)
No owner/operator of any RMFD shall use the RMFD for the measurement of liquid fuel products
unless it has been proved in a manner acceptable to the Director and sealed as correct by a state
inspector or registered service agency.
(e)
If any RMFD fails to comply with any of the provisions of this regulation, a state inspector shall
seal it in such a manner as to prohibit its use, and it shall remain sealed until it complies with all of
the provisions of this regulation.
(1)
When an RMFD is brought back into compliance with this regulation it must be placed
back in service by a state inspector or registered service agency.
(f)
All RMFDs shall comply with the minimum standards as prescribed by the applicable sections of
NFPA 30A, NIST Handbook 44, and NIST Handbook 130, except as modified or rejected by this
regulation or by the Director.
(g)
All RMFDs shall be labeled in accordance with the minimum standards as prescribed by the
applicable sections of NFPA 30A and NIST Handbook 130, United States Environmental
Protection Agency regulations, and Colorado Statutes, except as modified or rejected by this
regulation or by the director.
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(h)
Retail dispensing of Class I and Class II liquids from a mobile fueling vehicle into the fuel tank of
a motor vehicle shall be permitted only if all of the requirements of Section 1.5-2 (a) through (g)
and Chapter 14 of NFPA 30A are met.
tutes, except as modified or rejected by this
regulation or by the director.
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(h)
Retail dispensing of Class I and Class II liquids from a mobile fueling vehicle into the fuel tank of
a motor vehicle shall be permitted only if all of the requirements of Section 1.5-2 (a) through (g)
and Chapter 14 of NFPA 30A are met.
(i)
Retail dispensing of Class I and Class II liquids from metal safety cans into the fuel tank of a
motor vehicle shall be permitted only if all of the requirements of Chapter 14 of NFPA 30A are
met, and when such metal safety cans are pre-packaged by weight or volume and labeled in
accordance with NIST Handbook 130.
(j)
The dispensing of Class I and Class II liquids in the open from a tank vehicle to a motor vehicle
located at commercial, industrial, governmental, or manufacturing establishments and intended
for fueling vehicles used in connection with their businesses shall be permitted only if all of the
requirements of NFPA 30A 9.6.1 through 9.6.9 have been met.
(k)
All mobile fueling vehicles used to carry fuel products shall prominently display on the vehicle, in
letters at least three inches in height, the name and address of the owner or operator.
(l)
All mobile fueling vehicles shall display prominently on the rear of the tank the appropriate DOT
placard for the product contained.
Section 1.5-3 Refined Fuels Vehicle Tank Meter (VTM) Inspection and Testing
(a)
All refined fuel vehicle tank metering systems shall be suitable for their intended use, properly
installed and accurate, and shall be maintained in that condition by their owner/operator.
(b)
All refined fuel vehicle tank metering systems shall have an active National Type Evaluation
Program (NTEP) Certificate of Conformance (CC) prior to their installation or use for commercial
purposes.
ing
(a)
All refined fuel vehicle tank metering systems shall be suitable for their intended use, properly
installed and accurate, and shall be maintained in that condition by their owner/operator.
(b)
All refined fuel vehicle tank metering systems shall have an active National Type Evaluation
Program (NTEP) Certificate of Conformance (CC) prior to their installation or use for commercial
purposes.
(c)
The division shall be notified when any new or remanufactured refined fuels vehicle tank metering
system is placed in service at a new or existing installation.
(1)
Notification shall be submitted using a placed-in-service report provided by the division.
(d)
No owner/operator of any refined fuels vehicle tank metering system shall use the meter for the
measurement of fuel products unless it has been proved in a manner acceptable to the Director
of the division and sealed as correct by a state inspector or registered service agency.
(e)
If any refined fuel vehicle tank metering system fails to comply with any of the provisions of these
regulations, a state inspector shall seal it in such a manner as to prohibit its use, and it shall
remain sealed until it complies with all of the provisions of these regulations.
(1)
When a refined fuel vehicle tank metering system is brought back into compliance with
these regulations, it must be placed back in service by a state inspector or registered
service agency.
(f)
All refined fuels vehicle tank metering systems shall comply with the minimum standards as
prescribed by the applicable sections of NFPA 385, NFPA 30A, NIST Handbook 44, and NIST
Handbook 130 except as modified or rejected by these regulations or by the division.
ht back into compliance with
these regulations, it must be placed back in service by a state inspector or registered
service agency.
(f)
All refined fuels vehicle tank metering systems shall comply with the minimum standards as
prescribed by the applicable sections of NFPA 385, NFPA 30A, NIST Handbook 44, and NIST
Handbook 130 except as modified or rejected by these regulations or by the division.
(g)
All refined fuels vehicle tank meters shall be labeled in accordance with the minimum standards
as prescribed by the applicable sections of NFPA 385, NFPA 30A, NIST Handbook 44, and NIST
Handbook 130 except as modified or rejected by these regulations or by the division.
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(h)
All refined fuel delivery trucks used to carry fuel products shall prominently display on the truck, in
letters at least three inches in height, the name and address of the owner or operator.
(i)
All refined fuel delivery trucks shall display prominently on the rear of the tank the appropriate
DOT placard for the product contained.
Section 1.5-4 Product Quality
(a)
All liquid fuel products in Classes I, II, and III shall comply with the applicable specifications of
ASTM, which are found in the Annual Book of ASTM Standards Section 5 “Petroleum Products,
Lubricants, and Fossil Fuels”.
[Note 1: Class I flammable liquids include all grades of gasoline, and most motor fuels blended
using alcohol and MTBE (methyl-tertiary-butyl-ether).]
[Note 2: Class II combustible liquids include #1 and #2 diesel fuels, #1 and #2 heating oil,
kerosene, and Jet-A grade jet fuel.]
[Note 3: Class III combustible liquids include most lubricating oils and heavy fuel oils.]
bricants, and Fossil Fuels”.
[Note 1: Class I flammable liquids include all grades of gasoline, and most motor fuels blended
using alcohol and MTBE (methyl-tertiary-butyl-ether).]
[Note 2: Class II combustible liquids include #1 and #2 diesel fuels, #1 and #2 heating oil,
kerosene, and Jet-A grade jet fuel.]
[Note 3: Class III combustible liquids include most lubricating oils and heavy fuel oils.]
(b)
If gasoline is blended with ethanol, the ASTM D 4814 specifications shall apply to the base
gasoline prior to blending. Blends of gasoline and ethanol shall not exceed the ASTM D 4814
vapor pressure standard, except that, if the ethanol is blended at nine percent or higher but not
exceeding ten percent, the blend may exceed the ASTM D 4814 vapor pressure standard by no
more than 1.0 psi. This 1.0 psi allowance does not apply to reformulated gasoline (required by
USEPA starting in 2024 in the Denver metro ozone nonattainment area) being sold at retail
stations between June 1 and September 15 each year.
(c)
In addition to the above, all liquid fuel products shall comply with the requirements published in
the NIST Handbook 130 “Uniform Laws and Regulations in the area of legal metrology and
engine fuel quality” except as modified or rejected by this regulation.
(d)
The allowable reductions in vehicle antiknock requirements for altitude are 4.5 for less than 89
Antiknock Index (AKI), and 3.0 for greater than 89 AKI. Fuel may be marketed using these
reductions, but the actual AKI minimum must be posted.
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engine fuel quality” except as modified or rejected by this regulation.
(d)
The allowable reductions in vehicle antiknock requirements for altitude are 4.5 for less than 89
Antiknock Index (AKI), and 3.0 for greater than 89 AKI. Fuel may be marketed using these
reductions, but the actual AKI minimum must be posted.
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ARTICLE 2
UNDERGROUND STORAGE TANKS
Section 2-1
UST Program Scope and Applicability
UST systems in Colorado are regulated to protect the people and environment of Colorado from the
potentially harmful effects of the regulated substances contained within UST systems. The purpose of this
article is to present to owner/operators of UST systems a description of the minimum general standards
for the design, construction, installation, and operation of these systems to be in compliance with these
regulations and Colorado statutes. Further description of these requirements can be found in guidance
documents, policies, and procedures provided by the Director.
2-1-1
Applicability
(a)
Regulated UST systems
These UST regulations apply to all owners/operators of an UST system except as otherwise provided in
paragraphs (b), (c), and (d) of this section.
(1)
Previously deferred UST systems. Airport hydrant fuel distribution systems, UST systems
with field-constructed tanks, and UST systems that store fuel solely for use by emergency
power generators must meet the requirements of this section as follows:
These UST regulations apply to all owners/operators of an UST system except as otherwise provided in
paragraphs (b), (c), and (d) of this section.
(1)
Previously deferred UST systems. Airport hydrant fuel distribution systems, UST systems
with field-constructed tanks, and UST systems that store fuel solely for use by emergency
power generators must meet the requirements of this section as follows:
(i)
Airport hydrant fuel distribution systems and UST systems with field-constructed
tanks must meet the requirements in Section 2.5 (UST Systems with Field
Constructed Tanks and Airport Hydrant Distribution Systems).
(ii)
UST systems that store fuel solely for use by emergency power generators
installed on or before January 1, 2017 must meet the release detection
requirements of §2.3.4 on or before January 1, 2020.
[Note: UST systems storing fuel solely for use by emergency power generators
that existed on or before January 1, 2017 were already required to meet all other
applicable requirements of this article.]
(iii)
UST systems that store fuel solely for use by emergency power generators
installed after January 1, 2017 must meet all applicable requirements of this
section at installation
(2)
Any UST system listed in paragraph (c) of this section must meet the requirements of
Section 2-1-1-(d) (Installation Requirements for Partially Excluded UST Systems).
(b)
Excluded UST Systems
The following UST systems or installations are excluded from these UST regulations:
(1)
Any UST system holding hazardous wastes listed or identified under Subtitle C of the
Solid Waste Disposal Act, or a mixture of such hazardous waste and other regulated
substances;
(2)
Any wastewater treatment tank system that is part of a wastewater treatment facility
regulated under Section 402 or 307(b) of the Clean Water Act;
systems or installations are excluded from these UST regulations:
(1)
Any UST system holding hazardous wastes listed or identified under Subtitle C of the
Solid Waste Disposal Act, or a mixture of such hazardous waste and other regulated
substances;
(2)
Any wastewater treatment tank system that is part of a wastewater treatment facility
regulated under Section 402 or 307(b) of the Clean Water Act;
(3)
Equipment or machinery that contains regulated substances for operational purposes
such as hydraulic lift tanks and electrical equipment tanks;
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(4)
Any UST system whose capacity is 110 gallons or less;
(5)
Any UST system that contains a de minimis concentration of regulated substances;
(6)
Any emergency spill or overflow containment UST system that is expeditiously emptied
after use;
(7)
Any farm or residential UST with a capacity of 1,100 gallons or less that is used for
storing motor fuel for non-commercial purposes;
(8)
Any tank used for storing heating oil for consumptive use on the premises where it is
located;
(9)
Any septic tank;
(10)
Any pipeline facility, including its gathering lines, which is regulated under chapter 601 of
Title 49 U.S.C., or which is an intrastate pipeline facility regulated under state laws as
provided in chapter 601 of Title 49 U.S.C. and which is determined by the Secretary of
Transportation to be connected to a pipeline, or to be operated or intended to be capable
of operating at pipeline pressure or as an integral part of a pipeline;
(11)
Any surface impoundment, pit, pond, lagoon, or landfill;
(12)
Any storm-water or Wastewater collection system;
(13)
Any flow-through process tank;
(14)
Any liquid trap or associated gathering lines directly related to oil or gas production and
gathering operations;
o a pipeline, or to be operated or intended to be capable
of operating at pipeline pressure or as an integral part of a pipeline;
(11)
Any surface impoundment, pit, pond, lagoon, or landfill;
(12)
Any storm-water or Wastewater collection system;
(13)
Any flow-through process tank;
(14)
Any liquid trap or associated gathering lines directly related to oil or gas production and
gathering operations;
(15)
Any storage tank situated in an underground area, such as a basement, cellar, mine-
working, drift, shaft, or tunnel area, if the tank is situated upon or above the surface of the
floor.
[Note: Sections 2-1-1(b)(1) through (6) are excluded from these UST regulations per CFR 280.10
(b). Section 2-1-1(b) (7) through (15) are excluded from these UST regulations per C.R.S. § 8-
20.5-101(17)(b).]
(c)
Partially Excluded UST Systems
The following types of UST systems are deferred from all parts of these regulations except for release
response (Article 5) and financial responsibility (Article 7).
(1)
Wastewater treatment tank systems not covered under 2-1-1(b)(2).
(2)
Any UST systems containing radioactive material that are regulated under the Atomic
Energy Act of 1954 (42 U.S.C. § 2011 and following).
(3)
Any UST system that is part of an emergency generator system at nuclear power
generation facilities licensed by the Nuclear Regulatory Commission and subject to
Nuclear Regulatory Commission requirements regarding design and quality criteria,
including but not limited to 10 CFR Part 50.
(4)
Aboveground storage tanks associated with airport hydrant fuel distribution systems.
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(5)
Aboveground storage tanks associated with UST systems with field-constructed tanks.
(d)
Installation Requirements for Partially Excluded UST Systems
(1)
Owners and operators must install an UST system listed in 2-1-1(c) (1), (2), or (3) storing
regulated substances (whether of single- or double- wall construction) that meets the
following requirements:
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(5)
Aboveground storage tanks associated with UST systems with field-constructed tanks.
(d)
Installation Requirements for Partially Excluded UST Systems
(1)
Owners and operators must install an UST system listed in 2-1-1(c) (1), (2), or (3) storing
regulated substances (whether of single- or double- wall construction) that meets the
following requirements:
(a)
Will prevent releases due to corrosion or structural failure for the operational life
of the UST system;
(b)
Is cathodically protected against corrosion, constructed of non-corrodible
material, steel clad with a non-corrodible material, or designed in a manner to
prevent the release or threatened release of any stored substance; and
(c)
Is constructed or lined with material that is compatible with the stored substance.
(2)
Notwithstanding paragraph (1) of this section, an UST system without corrosion
protection may be installed at a site that is determined by a corrosion expert not to be
corrosive enough to cause it to have a release due to corrosion during its operating life.
Owners and operators must maintain records that demonstrate compliance with the
requirements of this paragraph for the remaining life of the tank.
[Note: The following codes of practice may be used as guidance for complying with this section:
(A)
AMPP Standard Practice SP 0285, “External Corrosion Control of Underground Storage
Tank Systems by Cathodic Protection”, published 2011;
(B)
AMPP Standard Practice SP 0169, “Control of External Corrosion on Underground or
Submerged Metallic Piping Systems”, published 2013;
(C)
American Petroleum Institute Recommended Practice 1632, “Cathodic Protection of
Underground Petroleum Storage Tanks and Piping Systems”; or
(D)
Steel Tank Institute Recommended Practice R892, “Recommended Practice for
Corrosion Protection of Underground Piping Networks Associated with Liquid Storage
and Dispensing Systems”.]
2-1-2
Determination of Ownership and Use
An UST that was in use before December 22, 1988, and which was n
ommended Practice 1632, “Cathodic Protection of
Underground Petroleum Storage Tanks and Piping Systems”; or
(D)
Steel Tank Institute Recommended Practice R892, “Recommended Practice for
Corrosion Protection of Underground Piping Networks Associated with Liquid Storage
and Dispensing Systems”.]
2-1-2
Determination of Ownership and Use
An UST that was in use before December 22, 1988, and which was not closed in accordance with
national fire codes in effect at the time is considered to be in use until it is permanently closed in
accordance with these regulations. An UST that is in use on or after December 22, 1988 is considered to
be in use until it is permanently closed in accordance with these regulations.
Section 2-2
UST Design, Construction, Installation and Registration
2-2-1
Design and Performance standards for new and replaced UST systems
In order to prevent releases due to structural failure, corrosion, or spills and overfills for as long as the
UST system is used to store regulated substances, all owners/operators of new and replaced UST
systems must meet the following requirements.
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(a)
Tanks. Secondary containment and interstitial monitoring is required for all new underground tank
installations. Secondary containment must be able to contain regulated substances leaked from
the primary containment until they are detected and removed and prevent the release of
regulated substances to the environment at any time during the operational life of the UST
system. If an existing underground tank is replaced, the secondary containment and interstitial
monitoring requirements apply only to the replaced underground tank. The secondary
containment requirements do not apply to repairs meant to restore an underground tank to
operating condition
revent the release of
regulated substances to the environment at any time during the operational life of the UST
system. If an existing underground tank is replaced, the secondary containment and interstitial
monitoring requirements apply only to the replaced underground tank. The secondary
containment requirements do not apply to repairs meant to restore an underground tank to
operating condition. Each tank must be properly designed and constructed, and any portion of an
underground tank that routinely contains product must be protected from corrosion in accordance
with a code of practice developed by a nationally recognized association or independent testing
laboratory as specified below.
(1)
The tank is constructed of fiberglass-reinforced plastic; or
[Note: The following codes of practice may be used to comply with paragraph (a)(1) of this
section:
(A)
Underwriters Laboratories Standard 1316, “Glass- Fiber-Reinforced Plastic Underground
Storage Tanks for Petroleum Products, Alcohols and Alcohol-Gasoline Mixtures”; or
(B)
Underwriter's Laboratories of Canada CAN4-S615-M83, “Standard for Reinforced Plastic
Underground Tanks for Flammable and Combustible Liquids”.]
(2)
The tank is constructed of steel and cathodically protected in the following manner:
(i)
The tank is coated with a suitable dielectric material;
(ii)
Field-installed cathodic protection systems are designed by a corrosion expert;
(iii)
Impressed current systems are designed to allow determination of current
operating status as required in 2-3-3(b); and
for Flammable and Combustible Liquids”.]
(2)
The tank is constructed of steel and cathodically protected in the following manner:
(i)
The tank is coated with a suitable dielectric material;
(ii)
Field-installed cathodic protection systems are designed by a corrosion expert;
(iii)
Impressed current systems are designed to allow determination of current
operating status as required in 2-3-3(b); and
(iv)
Cathodic protection systems are operated and maintained in accordance with 2-
3-3(a); or
[Note: The following codes of practice may be used to comply with paragraph (a)(2) of
this section:
(A)
Steel Tank Institute “sti-P3 Specification and Manual for External Corrosion
Protection of Underground Steel Storage Tanks”;
(B)
Underwriters Laboratories Standard1746, “External Corrosion Protection
Systems for Steel Underground Storage Tanks”;
(C)
Underwriters Laboratories of Canada CAN4-S603-M85 “Standard for Steel
Underground Tanks for Flammable and Combustible Liquids,” and CAN4-
S603.1-M85, “Standard for Galvanic Corrosion Protection Systems for
Underground Tanks for Flammable and Combustible Liquids “ and CAN4-S631-
M84 “Standard for Isolating Bushings for Steel Underground Tanks Protected
with Coatings and Galvanic Systems “; or
(D)
AMPP Standard Practice SP 0285, “External Corrosion Control of Underground
Storage Tank Systems by Cathodic Protection”, published 2011, and
Underwriters Laboratories Standard 58, “Standard for Steel Underground Tanks
for Flammable and Combustible Liquids”.]
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anks Protected
with Coatings and Galvanic Systems “; or
(D)
AMPP Standard Practice SP 0285, “External Corrosion Control of Underground
Storage Tank Systems by Cathodic Protection”, published 2011, and
Underwriters Laboratories Standard 58, “Standard for Steel Underground Tanks
for Flammable and Combustible Liquids”.]
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(3)
The tank is constructed of steel and clad or jacketed with a non-corrodible material; or
[Note: The following codes of practice may be used to comply with paragraph (a)(3) of this
section:
(A)
Underwriters Laboratories Standard 1746, “External Corrosion Protection Systems for
Steel Underground Storage Tanks,”
(B)
Steel Tank Institute ACT-100® Specification F894, “Specification for External Corrosion
Protection of FRP Composite Steel Underground Storage Tanks.”
(C)
Steel Tank Institute ACT-100-U® Specification F961, “Specification for External
Corrosion Protection of Composite Steel Underground Storage Tanks”; or
(D)
Steel Tank Institute Specification F922, “Specification for Permatank®”.]
(4)
The tank is constructed of metal without additional corrosion protection measures
provided that:
(i)
The tank is installed at a site that is determined by a corrosion expert not to be
corrosive enough to cause it to have a release due to corrosion during its
operating life; and
[Note: The National Association of Corrosion Engineers Standard RP-02-85, “Control of
External Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid Storage
Systems,” may be used as guidance for complying with paragraph (4)(i) of this section.]
(ii)
Owners/operators maintain records that demonstrate compliance with the
requirements of paragraph (a)(4)(i) of this section for the remaining life of the
tank; or
iation of Corrosion Engineers Standard RP-02-85, “Control of
External Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid Storage
Systems,” may be used as guidance for complying with paragraph (4)(i) of this section.]
(ii)
Owners/operators maintain records that demonstrate compliance with the
requirements of paragraph (a)(4)(i) of this section for the remaining life of the
tank; or
(5)
The tank construction and corrosion protection are determined by the Director to be
designed to prevent the release or threatened release of any stored regulated substance
in a manner that is no less protective of human health and the environment than
paragraphs (a)(1) through (4) of this section.
(b)
Piping. Secondary containment and interstitial monitoring is required for all new piping
installations, including piping to remote fills. Secondary containment must be able to contain
regulated substances leaked from the primary containment until they are detected and removed
and prevent the release of regulated substances to the environment at any time during the
operational life of the UST system. For replaced piping, secondary containment and interstitial
monitoring is required for the total length of piping connected to a single UST whenever more
than 50% or 50 feet (whichever is less) of the piping connected to that tank is replaced.
Installation of new or replaced piping will require the installation of containment sumps (under-
dispenser [UDC], submersible turbine pump [STP] or transition) on both ends of the secondarily
contained pipe for interstitial monitoring. These secondary containment requirements do not apply
to repairs meant to restore piping to operating condition. For the purposes of determining when
secondary containment is required by these rules, a repair is any activity that does not meet the
definition of “replace”. These secondary containment requirements also do not apply to vent
piping, vapor recovery piping, and fill pipes not connected to remote fills
containment requirements do not apply
to repairs meant to restore piping to operating condition. For the purposes of determining when
secondary containment is required by these rules, a repair is any activity that does not meet the
definition of “replace”. These secondary containment requirements also do not apply to vent
piping, vapor recovery piping, and fill pipes not connected to remote fills.
The piping that routinely contains regulated substances and is in contact with the ground must be
properly designed, constructed, and protected from corrosion in accordance with a code of
practice developed by a nationally recognized association or independent testing laboratory as
specified below.
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(1)
The piping is constructed of non-corrodible material; or
[Note: The following codes and standards may be used to comply with paragraph (b)(1) of this
section:
(A)
Underwriters Laboratories Standard UL 971, “Nonmetallic Underground Piping for
Flammable Liquids”; or
(B)
Underwriters Laboratories of Canada Standard S660, “ Standard for Nonmetallic
Underground Piping for Flammable and Combustible Liquids”.]
(2)
The piping is constructed of steel and cathodically protected in the following manner:
(i)
The piping is coated with a suitable dielectric material;
(ii)
Field-installed cathodic protection systems are designed by a corrosion expert;
(iii)
Impressed current systems are designed to allow determination of current
operating status as required in 2-3-3(b); and
Flammable and Combustible Liquids”.]
(2)
The piping is constructed of steel and cathodically protected in the following manner:
(i)
The piping is coated with a suitable dielectric material;
(ii)
Field-installed cathodic protection systems are designed by a corrosion expert;
(iii)
Impressed current systems are designed to allow determination of current
operating status as required in 2-3-3(b); and
(iv)
Cathodic protection systems are operated and maintained in accordance with 2-
3-3(a); or
[Note: The following codes and standards may be used to comply with paragraph (b)(2)
of this section:
(A)
American Petroleum Institute Recommended Practice 1632, “Cathodic Protection
of Underground Petroleum Storage Tanks and Piping Systems”
(B)
Underwriters Laboratories Standard UL 971A, “Outline of Investigation for
Metallic Underground Fuel Pipe”;
(C)
Steel Tank Institute Recommended Practice R892, “Recommended Practice for
Corrosion Protection of Underground Piping Networks Associated with Liquid
Storage and Dispensing Systems”;
(D)
AMPP Standard Practice SP 0169, “Control of External Corrosion on
Underground or Submerged Metallic Piping Systems”, published 2013; or
(E)
AMPP Standard Practice SP 0285, “External Corrosion Control of Underground
Storage Tank Systems by Cathodic Protection”, published 2011.]
(3)
The piping is constructed of metal without additional corrosion protection measures
provided that:
(i)
The piping is installed at a site that is determined by a corrosion expert to not be
corrosive enough to cause it to have a release due to corrosion during its
operating life; and
(ii)
Owners/operators maintain records that demonstrate compliance with the
requirements of paragraph (b)(3)(i) of this section for the remaining life of the
piping; or
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ite that is determined by a corrosion expert to not be
corrosive enough to cause it to have a release due to corrosion during its
operating life; and
(ii)
Owners/operators maintain records that demonstrate compliance with the
requirements of paragraph (b)(3)(i) of this section for the remaining life of the
piping; or
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(4)
The piping construction and corrosion protection are determined by the Director to be
designed to prevent the release or threatened release of any stored regulated substance
in a manner that is no less protective of human health and the environment than the
requirements in paragraphs (b)(1) through (3) of this section.
(c)
Spill and overfill prevention equipment.
(1)
Except as provided in paragraphs (c)(2) and (c)(3) of this section, to prevent spilling and
overfilling associated with product transfer to the UST system, owners/operators must
use the following spill and overfill prevention equipment:
(i)
Spill prevention equipment that will prevent release of product to the environment
when the transfer hose is detached from the fill pipe (e.g., a spill catchment
basin); and
(ii)
Overfill prevention equipment that will:
(A)
Automatically shut off flow into the tank when the tank is more than 95
percent full; or
(B)
Alert the transfer operator when the tank is no more than 90 percent full
by restricting the flow into the tank or triggering a high-level alarm; or
(C)
Restrict flow 30 minutes prior to overfilling, alert the transfer operator
with a high level alarm one minute before overfilling, or automatically
shut off flow into the tank so that none of the fittings located on top of the
tank are exposed to product due to overfilling.
(2)
Owners/operators are not required to use the spill and overfill prevention equipment
specified in paragraph (c)(1) of this section if:
w 30 minutes prior to overfilling, alert the transfer operator
with a high level alarm one minute before overfilling, or automatically
shut off flow into the tank so that none of the fittings located on top of the
tank are exposed to product due to overfilling.
(2)
Owners/operators are not required to use the spill and overfill prevention equipment
specified in paragraph (c)(1) of this section if:
(i)
Alternative equipment is used that is determined by the Director to be no less
protective of human health and the environment than the equipment specified in
paragraph (c)(1)(i) or (ii) of this section; or
(ii)
The UST system is filled by transfers of no more than 25 gallons at one time.
(3)
Flow restrictors used in vent lines may not be used to comply with paragraph (c)(1)(ii) of
this section when overfill prevention is installed or replaced after January 1, 2017.
(4)
Spill and overfill prevention equipment must be periodically tested or inspected in
accordance with Section 2-3-5.
(d)
Dispensers.
(1)
Under-dispenser containment shall be required for all new motor fuel dispenser systems.
A motor fuel dispenser system is considered new when:
(i)
A dispenser is installed at a location where there previously was no dispenser
(new UST system or new dispenser location at an existing UST system);
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(ii)
An existing dispenser is removed and replaced with another dispenser and the
equipment used to connect the dispenser to the UST system is replaced at any
point below the fire valve. This equipment may include unburied flexible
connectors or risers or other transitional components that are beneath the
dispenser and connect the dispenser to the piping; or
(iii)
An existing dispenser is removed and replaced with another dispenser and the
dispenser island has to be modified (i.e., concrete is broken) to install the
dispenser.
system is replaced at any
point below the fire valve. This equipment may include unburied flexible
connectors or risers or other transitional components that are beneath the
dispenser and connect the dispenser to the piping; or
(iii)
An existing dispenser is removed and replaced with another dispenser and the
dispenser island has to be modified (i.e., concrete is broken) to install the
dispenser.
(2)
Under-dispenser containment must be liquid-tight on its sides, bottom, and at any
penetrations. Under-dispenser containment must allow for visual inspection and access
to the components in the containment system or be periodically monitored for leaks from
the dispenser system.
(3)
Under-dispenser containment shall not be required when an existing dispenser is
removed and replaced with another dispenser that is not considered a new dispenser.
(e)
Minimum Secondary Containment Requirements. At a minimum, secondary containment systems
must be designed, constructed, and installed to:
(1)
Contain regulated substances released from the tank system until they are detected and
removed. To meet this requirement, all secondary containment systems, including
containment sumps, shall be tested for leaks at the time of installation and within 30
calendar days of a year thereafter using a testing method listed by the National
Workgroup on Leak Detection Evaluations (NWGLDE) or an alternate testing method
approved by the Director.
(2)
Prevent the release of regulated substances to the environment at any time during the
operational life of the UST system. Periodic testing of the secondary containment system
is required in accordance with Section 2-3-5. Also, if LNAPL is detected in a containment
sump, the sump shall be tested at that time for leaks using a testing method listed in
Section 2-3-5.
(3)
Be checked for evidence of a release at least every 30 calendar days.
ces to the environment at any time during the
operational life of the UST system. Periodic testing of the secondary containment system
is required in accordance with Section 2-3-5. Also, if LNAPL is detected in a containment
sump, the sump shall be tested at that time for leaks using a testing method listed in
Section 2-3-5.
(3)
Be checked for evidence of a release at least every 30 calendar days.
(4)
Include interstitial monitoring that meets the requirements of 7 C.C.R. 1101-14 §2-3-4-
2(g). If interstitial monitoring is the sole method of release detection for the UST system,
sump sensors shall be installed and each sensor shall be tested for functionality by
manual tripping on an annual basis.
(f)
Compatibility.
(1)
Owners/operators must use an UST system made of or lined with materials that are
compatible with the substance stored in the UST.
(2)
Owners and operators must notify the implementing agency at least 30 calendar days
prior to switching to a regulated substance containing greater than 10 percent ethanol,
greater than 20 percent biodiesel, or any other regulated substance identified by the
implementing agency. In addition, owners and operators with UST systems storing these
regulated substances must meet one of the following:
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(i)
Demonstrate compatibility of the UST system (including the tank, piping,
containment sumps, pumping equipment, release detection equipment, spill
equipment, and overfill equipment). Owners and operators may demonstrate
compatibility of the UST system by using one of the following options:
(A)
Certification or listing of UST system equipment or components by a
nationally recognized, independent testing laboratory for use with the
regulated substance stored; or
(B)
Equipment or component manufacturer approval
elease detection equipment, spill
equipment, and overfill equipment). Owners and operators may demonstrate
compatibility of the UST system by using one of the following options:
(A)
Certification or listing of UST system equipment or components by a
nationally recognized, independent testing laboratory for use with the
regulated substance stored; or
(B)
Equipment or component manufacturer approval. The manufacturer’s
approval must be in writing, indicate an affirmative statement of
compatibility, specify the range of biofuel blends the equipment or
component is compatible with, and be from the equipment or component
manufacturer; or
(C)
Use another option determined by the implementing agency to be no
less protective of human health and the environment than the options
listed in paragraphs (A) or (B) of this section.
(3)
Owners and operators must maintain records in accordance with Section 2-3-7(b)
documenting compliance with paragraph (i) of this section for as long as the UST system
is used to store the regulated substance.
[Note: Owners/operators storing alcohol blends may use the following codes to comply with the
requirements of this section:
(A)
American Petroleum Institute Recommended Practice 1626, “Storing and Handling
Ethanol and Gasoline-Ethanol Blends at Distribution Terminals and Filling Stations”; and
(B)
American Petroleum Institute Recommended Practice 1627, “Storage and Handling of
Gasoline-Methanol/Cosolvent Blends at Distribution Terminals and Service Stations.”]
2-2-2
Installation
No person may install, or cause to be installed, a new or replacement UST system or facility until:
(a)
An application, as described in 2-2-2-1 has been approved by the Director and an installation
permit has been issued by the Director;
(b)
The installation plan has been reported to the local Fire Department having jurisdiction; and
istribution Terminals and Service Stations.”]
2-2-2
Installation
No person may install, or cause to be installed, a new or replacement UST system or facility until:
(a)
An application, as described in 2-2-2-1 has been approved by the Director and an installation
permit has been issued by the Director;
(b)
The installation plan has been reported to the local Fire Department having jurisdiction; and
(c)
The application/inspection fee described in 2-2-2-1(c) has been paid.
2-2-2-1 Installation Application
The Director will make available an application form to facilitate submission of required information. A
complete installation application must be received by the Director no less than 20 working days prior to
construction. The application must be approved before beginning construction:
(a)
On any new UST system used to store regulated substances.
(b)
On an UST system that is being upgraded to the standards described in these regulations or
applicable statutes.
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(c)
For each UST installation or upgrade construction plan submitted, the owner/operator must remit
a fee of one hundred fifty ($150) dollars to the Director to cover the costs of the site plan review
and installation inspection.
(d)
Denial, Revocation, or Modification of Permit.
(1)
An UST permit application may be denied if the UST installation or operation is not in
conformance with these regulations; or is not in conformance with both Code 30 and
Code 30A of the National Fire Protection Association.
(2)
An UST permit application may be denied if the permit application is not complete or is
determined to be inaccurate.
(d)
Denial, Revocation, or Modification of Permit.
(1)
An UST permit application may be denied if the UST installation or operation is not in
conformance with these regulations; or is not in conformance with both Code 30 and
Code 30A of the National Fire Protection Association.
(2)
An UST permit application may be denied if the permit application is not complete or is
determined to be inaccurate.
(3)
An UST installation permit may be revoked if the UST installation or operation is not in
conformance with these regulations or is not in conformance with either Code 30 or Code
30A of the National Fire Protection Association. If installation activities have not begun
within six months of the issuance of the UST installation permit, the UST installation
permit will be automatically revoked unless the Director grants an extension in writing.
(4)
Six months or later after an UST installation permit is issued, the permit may be modified
by subsequent statutory or regulatory changes.
2-2-2-2 Installation Requirements
(a)
Installation. The UST system must be properly installed in accordance with a code of practice
developed by a nationally recognized association or independent testing laboratory and in
accordance with the manufacturer's instructions.
[Note: Tank and piping system installation practices and procedures described in the following
codes may be used to comply with the requirements of paragraph (a) of this section:
(A)
American Petroleum Institute Recommended Practice 1615, “Installation of Underground
Petroleum Storage Systems”;
(B)
Petroleum Equipment Institute Publication RP100, “Recommended Practices for
Installation of Underground Liquid Storage Systems”; or
(C)
National Fire Protection Association Standard 30, “Flammable and Combustible Liquids
Code” and Standard 30A, “Code for Motor Fuel Dispensing Facilities and Repair
Garages.”]
te Recommended Practice 1615, “Installation of Underground
Petroleum Storage Systems”;
(B)
Petroleum Equipment Institute Publication RP100, “Recommended Practices for
Installation of Underground Liquid Storage Systems”; or
(C)
National Fire Protection Association Standard 30, “Flammable and Combustible Liquids
Code” and Standard 30A, “Code for Motor Fuel Dispensing Facilities and Repair
Garages.”]
(b)
Effective January 1, 2009, all UST system tanks and piping must be properly installed by an
installer certified by the Director. To obtain certification from the Director, applicants shall submit
a completed UST Installer Certification Application with copies of current certificates issued by the
International Code Council (ICC) and the Petroleum Equipment Institute (PEI) indicating they
have passed the ICC UST Installation/Retrofitting examination and the RP100 “Recommended
Practices for Installation of Underground Liquid Storage Systems” examination, or the installer
has been certified by the tank and piping manufacturers. The certified installer must be present
during inspections conducted by the Director during installation, upgrade or repairs of a UST
system.
(A)
A current certificate issued by ICC indicating a renewed certification of the UST
Installation/Retrofitting examination must be submitted to the Director upon renewal every
two years.
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(c)
Certification of installation. All owners/operators must demonstrate compliance with paragraph (a)
of this section by providing a certification of compliance on the UST registration form in
accordance with 2-2-3.
2-2-2-3 Installation Inspection
The Director will witness the pressurized testing of the product pipe (both primary and secondary) and
hydrostatic testing of all sumps and spill containment prior to backfilling piping trenches and tank top, and
inspect the UST system, before the facility opens for its intended purpose, to verify the requirements of
Section 2-2 have been met.
accordance with 2-2-3.
2-2-2-3 Installation Inspection
The Director will witness the pressurized testing of the product pipe (both primary and secondary) and
hydrostatic testing of all sumps and spill containment prior to backfilling piping trenches and tank top, and
inspect the UST system, before the facility opens for its intended purpose, to verify the requirements of
Section 2-2 have been met.
(a)
The owner/operator shall provide notice to the Director 3 working days prior to the intended date
of inspection.
(b)
Any duly authorized agent or employee of the Director shall have authority to enter in or upon the
premises of any facility that contains an UST system, containing a regulated substance, for the
purpose of verifying that such UST system and its required records are in compliance with these
regulations.
2-2-3
UST System Registration
(a)
Each owner/operator of a regulated UST system must register each UST system with the Director
within 30 calendar days after the first day on which the system is actually used to contain a
regulated substance. This registration must be renewed annually, on or before the calendar date
of the initial registration, in each succeeding year after 1989. The owner/operator is required to
pay a registration fee as set by statute for each tank registered.
(b)
All regulated UST systems and facilities must be registered on a form provided by the Director,
regardless of use, size, or type of regulated substance stored therein; and regardless of whether
the tanks and facilities are in service or in temporary closure.
[Note: Owners/operators of UST systems that were in the ground on or after May 8, 1986, unless
taken out of operation on or before January 1, 1974, were required to notify the Colorado
Department of Health in accordance with the Hazardous and Solid Waste Amendments of 1984,
Public Law 98-616, on a form published by EPA on November 8, 1985 (50 FR 46602) unless
notice was given pursuant to Section 103(c) of CERCLA
perators of UST systems that were in the ground on or after May 8, 1986, unless
taken out of operation on or before January 1, 1974, were required to notify the Colorado
Department of Health in accordance with the Hazardous and Solid Waste Amendments of 1984,
Public Law 98-616, on a form published by EPA on November 8, 1985 (50 FR 46602) unless
notice was given pursuant to Section 103(c) of CERCLA. Owners/operators who have not
complied with the notification requirements may use the registration form described in 2-2-3(b)]
(c)
Owners required to register tanks under paragraph (a) of this section must register each tank they
own. Owners may register several tanks using one registration form, but owners who own tanks
located at more than one place of operation must file a separate registration form for each
separate place of operation.
(d)
Any time there is a change in operation, including upgrading of the UST system, changes in
operation including a change of owner or operator, or completed closure of an UST system, the
owner/operator is required to submit an updated registration within 30 calendar days.
(e)
Registration forms required to be submitted under (a) and (d) of this section must provide all of
the required information for each tank.
(f)
All owners/operators of new UST systems must certify in the registration form, compliance with
the following requirements:
(1)
Installation of tanks and piping under 2-2-2-2(a);
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(2)
Cathodic protection of steel tanks and piping under 2-2-1(a)(2);
(3)
Financial responsibility under Article 7 of these regulations; and
(4)
Release detection under 2-3-4.
(g)
All owners/operators of new UST systems must certify in the registration form that the method
used to install the UST system complies with the requirements in Section 2-2-2-2(a).
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(2)
Cathodic protection of steel tanks and piping under 2-2-1(a)(2);
(3)
Financial responsibility under Article 7 of these regulations; and
(4)
Release detection under 2-3-4.
(g)
All owners/operators of new UST systems must certify in the registration form that the method
used to install the UST system complies with the requirements in Section 2-2-2-2(a).
(h)
After July 1, 1989, any person who sells a tank intended to be used as an UST must notify the
purchaser of such tank of the owner's registration obligations under (a) of this section.
(i)
The registration form supplied by the Director will meet the requirements of Section 9002 of the
federal Solid Waste Disposal Act as amended.
(j)
The required fee for UST registration is $35.00 per tank per year as authorized by C.R.S. § 8-
20.5-102; and the fee for the installation plan review and the installation inspection is set at
$150.00, as authorized by C.R.S. § 8-20.5-204, to cover the costs of administering this section.
2-2-4
Upgrading existing UST System
Owners and operators must permanently close (in accordance with Section 2-4) any UST system that
does not meet the new UST system performance standards in Section 2-2 or has not been upgraded in
accordance with paragraphs (b) through (d) of this section. This does not apply to previously deferred
UST systems described in Section 2-1-1-(a)(1) of this section and where an upgrade is determined to be
appropriate by the implementing agency.
(a)
Alternatives allowed. All existing UST systems must comply with one of the following:
(1)
New UST system performance standards under Section 2-2-1; or
(2)
Upgrading requirements in (b) through (d) of this section; or
(3)
Closure requirements under Section 2-4 of these regulations, including applicable
requirements for corrective action under Article 5.
e
appropriate by the implementing agency.
(a)
Alternatives allowed. All existing UST systems must comply with one of the following:
(1)
New UST system performance standards under Section 2-2-1; or
(2)
Upgrading requirements in (b) through (d) of this section; or
(3)
Closure requirements under Section 2-4 of these regulations, including applicable
requirements for corrective action under Article 5.
(b)
Tank upgrading requirements. Steel tanks must be upgraded to meet one of the following
requirements in accordance with a code of practice developed by a nationally recognized
association or independent testing laboratory:
(1)
Internal lining. Tanks upgraded by internal lining must meet the following:
(i)
The lining was installed in accordance with the requirements of Section 2-2-5,
and
(ii)
Within 10 years after lining, and every 5 years thereafter, the lined tank is
internally inspected and found to be structurally sound with the lining still
performing in accordance with original design specifications. If the internal lining
is no longer performing in accordance with original design specifications and
cannot be repaired in accordance with a code of practice developed by a
nationally recognized association or independent testing laboratory, then the
lined tank must be permanently closed in accordance with Section 2-4.
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(2)
Cathodic protection. Tanks upgraded by cathodic protection must meet the requirements
of Section 2-2-1(a)(2) and the integrity of the tank must have been ensured using one of
the following methods:
on or independent testing laboratory, then the
lined tank must be permanently closed in accordance with Section 2-4.
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(2)
Cathodic protection. Tanks upgraded by cathodic protection must meet the requirements
of Section 2-2-1(a)(2) and the integrity of the tank must have been ensured using one of
the following methods:
(i)
The tank was internally inspected and assessed to ensure that the tank was
structurally sound and free of corrosion holes prior to installing the cathodic
protection system; or
(ii)
The tank has been installed for less than 10 years and is monitored monthly for
releases in accordance with Section 2-3-4-2(d) through (i); or
(iii)
The tank had been installed for less than 10 years and was assessed for
corrosion holes by conducting two (2) tightness tests that meet the requirements
of Section 2-3-4-2(c). The first tightness test must have been conducted prior to
installing the cathodic protection system. The second tightness test must have
been conducted between three (3) and six (6) months following the first operation
of the cathodic protection system; or
(iv)
The tank was assessed for corrosion holes by a method that is determined by the
Director to prevent releases in a manner that is no less protective of human
health and the environment than (b)(2)(i) through (iii) of this section.
(3)
Internal lining combined with cathodic protection. Tanks upgraded by both internal lining
and cathodic protection must meet the following:
protection system; or
(iv)
The tank was assessed for corrosion holes by a method that is determined by the
Director to prevent releases in a manner that is no less protective of human
health and the environment than (b)(2)(i) through (iii) of this section.
(3)
Internal lining combined with cathodic protection. Tanks upgraded by both internal lining
and cathodic protection must meet the following:
(i)
The lining was installed in accordance with the requirements of Section 2-2-5;
and
(ii)
The cathodic protection system meets the requirements of Section 2-2-1(a)(2).
[Note: The following historical codes of practice were listed as options for complying with
this section:
(A)
American Petroleum Institute Recommended Practice 1631, ““Interior Lining of
Existing Steel Underground Storage Tanks”;
(B)
National Leak Prevention Association Standard 631, “Spill Prevention, Minimum
10 Year Life Extension of Existing Steel Underground Tanks by Lining Without
the Addition of Cathodic Protection”;
(C)
National Association of Corrosion Engineers Standard RP-02-85, “Control of
External Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid
Storage Systems”; and
(D)
American Petroleum Institute Recommended Practice 1632, “Cathodic Protection
of Underground Petroleum Storage Tanks and Piping Systems.”]
(c)
Piping upgrading requirements. Metal piping that routinely contains regulated substances and is
in contact with the ground must be cathodically protected in accordance with a code of practice
developed by a nationally recognized association or independent testing laboratory and must
meet the requirements of Section 2-2-1(b)(2).
[Note: The codes and standards listed in the note following Section 2-2-4(b)(3)(ii) may be used to
comply with this requirement.]
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ly protected in accordance with a code of practice
developed by a nationally recognized association or independent testing laboratory and must
meet the requirements of Section 2-2-1(b)(2).
[Note: The codes and standards listed in the note following Section 2-2-4(b)(3)(ii) may be used to
comply with this requirement.]
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(d)
Spill and overfill prevention equipment. To prevent spilling and overfilling associated with product
transfer to the UST system, all existing UST systems must comply with new UST system spill and
overfill prevention equipment requirements specified in Section 2-2-1(c).
2-2-5
Repairs
Owners/operators of UST systems must ensure that repairs will prevent releases due to structural failure
or corrosion as long as the UST system is used to store regulated substances. The repairs must meet the
following requirements:
(a)
Repairs to UST systems must be properly conducted in accordance with a code of practice
developed by a nationally recognized association or an independent testing laboratory.
[Note: The following codes and standards may be used to comply with paragraph (a) of this
section:
(A)
National Fire Protection Association Standard 30, “Flammable and Combustible Liquids
Code”;
(B)
American Petroleum Institute Recommended Practice 2200, “Repairing Crude Oil,
Liquefied Petroleum Gas, and Product Pipelines”;
(C)
American Petroleum Institute Recommended Practice RP 1631, “Interior Lining of
Existing Steel Underground Storage Tanks”
(D)
National Fire Protection Association Standard 326, “Standard for the Safeguarding of
Tanks and Containers for Entry, Cleaning, or Repair”,
(E)
National Leak Prevention Association Standard 631, Chapter A, “Entry, Cleaning, Interior
Inspection, Repair, and Lining of Underground Storage Tanks.”,
(F)
Steel Tank Institute Recommended Practice R972, “Recommended Practice for the
Addition of Supplemental Anodes to sti-P3® Tanks”,
(G)
AMPP Standard Practice SP 0285, “External Corrosion Control
nd Containers for Entry, Cleaning, or Repair”,
(E)
National Leak Prevention Association Standard 631, Chapter A, “Entry, Cleaning, Interior
Inspection, Repair, and Lining of Underground Storage Tanks.”,
(F)
Steel Tank Institute Recommended Practice R972, “Recommended Practice for the
Addition of Supplemental Anodes to sti-P3® Tanks”,
(G)
AMPP Standard Practice SP 0285, “External Corrosion Control of Underground Storage
Tank Systems by Cathodic Protection”, published 2011; or
(H)
Fiberglass Tank and Pipe Institute Recommended Practice T-95-02, “Remanufacturing of
Fiberglass Reinforced Plastic (FRP) Underground Storage Tanks”.]
(b)
Repairs to fiberglass-reinforced plastic tanks may be made by the manufacturer's authorized
representatives or in accordance with a code of practice developed by a nationally recognized
association or an independent testing laboratory.
(c)
Metal pipe sections and fittings that have released product as a result of corrosion or other
damage must be replaced. Non-corrodible pipes and fittings may be repaired in accordance with
the manufacturer's specifications.
(d)
If a release of regulated substance is identified during repairs to UST system equipment, the
owner/operator shall report the release according to Article 4.
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(e)
Post-repair testing
(1)
Repairs to secondary containment areas of tanks and piping used for interstitial
monitoring and to containment sumps used for interstitial monitoring of piping must have
the secondary containment tested for tightness according to the manufacturer’s
instructions, a code of practice developed by a nationally recognized association or
independent testing laboratory, or according to requirements established by the
implementing agency within 30 calendar days following the date of completion of the
repair
inment sumps used for interstitial monitoring of piping must have
the secondary containment tested for tightness according to the manufacturer’s
instructions, a code of practice developed by a nationally recognized association or
independent testing laboratory, or according to requirements established by the
implementing agency within 30 calendar days following the date of completion of the
repair. All other repairs to tanks and piping must be tightness tested in accordance with
2-3-4-2(c) and 2-3-4-3 within 30 calendar days following the date of the completion of the
repair unless:
(i)
The repaired tank is internally inspected in accordance with a code of practice
developed by a nationally recognized association or an independent testing
laboratory; or
(ii)
The repaired portion of the UST system is monitored monthly for releases in
accordance with a method specified in Section 2-3-4-2(d) through (i); or
(iii)
Another test method is used that is determined by the Director to be no less
protective of human health and the environment than those listed above.
[Note: The following codes of practice may be used to comply with paragraph (e)(1) of this
section:
(A)
Steel Tank Institute Recommended Practice R012, “Recommended Practice for
Interstitial Tightness Testing of Existing Underground Double Wall Steel Tanks”; or
(B)
Fiberglass Tank and Pipe Institute Protocol, “Field Test Protocol for Testing the Annular
Space of Installed Underground Fiberglass Double and Triple-Wall Tanks with Dry
Annular Space”; or
(C)
Petroleum Equipment Institute Recommended Practice RP1200, “Recommended
Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary
Containment Equipment at UST Facilities”.]
(2)
Within 6 months following the repair of any cathodically protected UST system the
cathodic protection system must be tested in accordance with Section 2-3-3(a) and (b) to
ensure that it is operating properly.
Institute Recommended Practice RP1200, “Recommended
Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary
Containment Equipment at UST Facilities”.]
(2)
Within 6 months following the repair of any cathodically protected UST system the
cathodic protection system must be tested in accordance with Section 2-3-3(a) and (b) to
ensure that it is operating properly.
(3)
Within 30 calendar days following any repair to spill or overfill prevention equipment, the
repaired spill or overfill prevention equipment must be tested or inspected, as
appropriate, in accordance with Section 2-2-5(e)(3) to ensure it is operating properly.
Section 2-3
Operation
2-3-1
Operator Training
UST Operator Training is a requirement designed to ensure knowledge regarding operating and
maintaining UST systems. These requirements apply to UST systems regulated under Subtitle I, except
those excluded by these regulations.
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2-3-1-1 Classes of Operators
For purposes of implementing the operator training requirements, these regulations establish Colorado
specific operator training, testing and certification requirements for three classes of operators identified as
Class A, Class B, and Class C. Owners/operators are required to identify and designate, for each UST
system or group of UST systems at a facility, at least one named individual for each class of operator
outlined in these regulations. All individuals designated as a Class A, B, or C operator must, at a
minimum, be trained and certified according to these regulations.
Separate individuals may be designated for each class of operator described above or an individual may
be designated to more than one of the above operator classes. An individual who is designated to more
than one operator class must be trained in each operator class for which he or she is designated
s A, B, or C operator must, at a
minimum, be trained and certified according to these regulations.
Separate individuals may be designated for each class of operator described above or an individual may
be designated to more than one of the above operator classes. An individual who is designated to more
than one operator class must be trained in each operator class for which he or she is designated.
Because an individual may be designated for more than one operator class, the Director will allow a
training approach that encompasses training for more than one operator class.
To assist in identifying responsible individuals to be trained pursuant to these regulations, the following
sections characterize, in general terms, each class of operator. These sections also identify general
training requirements pertaining to operating and maintaining UST systems.
2-3-1-2 Class A Operator
A Class A operator has primary responsibility to operate and maintain the UST system. The Class A
operator’s responsibilities include managing resources and personnel, such as establishing work
assignments, to achieve and maintain compliance with regulatory requirements. The general and
minimum requirements for a Class A operator are as follows:
(a)
General Requirements: This individual focuses on the broader aspects of the statutory and
regulatory requirements and standards necessary to operate and maintain the UST system. For
example, this individual typically ensures that appropriate individual(s):
(1)
Properly operate and maintain the UST system.
(2)
Maintain appropriate records.
(3)
Are trained to operate and maintain the UST system and keep records.
(4)
Properly respond to emergencies caused by releases or spills from UST systems at the
facility.
(5)
Make financial responsibility documents available to the Director as required.
individual typically ensures that appropriate individual(s):
(1)
Properly operate and maintain the UST system.
(2)
Maintain appropriate records.
(3)
Are trained to operate and maintain the UST system and keep records.
(4)
Properly respond to emergencies caused by releases or spills from UST systems at the
facility.
(5)
Make financial responsibility documents available to the Director as required.
(b)
Minimum Requirements: The Class A operator must be trained in the following:
(1)
A general knowledge of UST system requirements so he or she can make informed
decisions regarding compliance and ensure appropriate individuals are fulfilling
operation, maintenance, and recordkeeping requirements and standards of these
regulations regarding:
(i)
Spill prevention
(ii)
Overfill prevention
(iii)
Release detection
(iv)
Corrosion protection
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(v)
Emergency response
(vi)
Product compatibility
(2)
Financial responsibility documentation requirements.
(3)
Notification requirements.
(4)
Release and suspected release reporting.
(5)
Temporary and permanent closure requirements.
(6)
Class B and C operator training requirements.
2-3-1-3 Class B Operator
A Class B operator implements applicable UST regulatory requirements and standards in the field. This
individual implements day-to-day aspects of operating, maintaining, and recordkeeping for USTs at one
or more facilities. The general and minimum requirements for a Class B operator are as follows:
(a)
General Requirements: This individual typically monitors, maintains, and ensures:
(1)
Release detection method, recordkeeping, and reporting requirements are met.
(2)
Release prevention equipment, recordkeeping, and reporting requirements are met.
(3)
All relevant equipment complies with performance standards.
(4)
Appropriate individuals are trained to properly respond to emergencies caused by
releases or spills from UST systems at the facility.
onitors, maintains, and ensures:
(1)
Release detection method, recordkeeping, and reporting requirements are met.
(2)
Release prevention equipment, recordkeeping, and reporting requirements are met.
(3)
All relevant equipment complies with performance standards.
(4)
Appropriate individuals are trained to properly respond to emergencies caused by
releases or spills from UST systems at the facility.
(b)
Minimum Requirements: Compared with training for the Class A operator, training for the Class B
operator will provide a more in-depth understanding of operation and maintenance aspects, but
may cover a more narrow breadth of applicable regulatory requirements. The Class B operators
training must encompass the following:
(1)
Components of UST systems.
(2)
Materials of UST system components.
(3)
Methods of release detection and release prevention applied to UST components.
(4)
Operation and maintenance requirements of these regulations that apply to UST systems
and include:
(i)
Spill prevention
(ii)
Overfill prevention
(iii)
Release detection
(iv)
Corrosion protection
(v)
Emergency response
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(vi)
Product compatibility
(5)
Reporting and recordkeeping requirements.
(6)
Class C operator training requirements.
2-3-1-4 Class C Operator
A Class C operator is an employee and is, generally, the first line of response to events indicating
emergency conditions. This individual is responsible for responding to alarms or other indications of
emergencies caused by spills or releases from UST systems. This individual notifies the Class B or Class
A operator and appropriate emergency responders when necessary. It is not necessary that all
employees of the facility are Class C operators, although at least one Class C Operator must be present
during operating hours at attended facilities.
le for responding to alarms or other indications of
emergencies caused by spills or releases from UST systems. This individual notifies the Class B or Class
A operator and appropriate emergency responders when necessary. It is not necessary that all
employees of the facility are Class C operators, although at least one Class C Operator must be present
during operating hours at attended facilities.
(a)
General Requirements: This individual typically:
(1)
Controls or monitors the dispensing or sale of regulated substances, or
(2)
Is responsible for initial response to alarms or releases.
(b)
Minimum Requirements: At a minimum, the Class C operator must be trained to:
(1)
Take action in response to emergencies (such as, situations posing an immediate danger
or threat to the public or to the environment and that require immediate action) or alarms
caused by spills or releases from an UST system.
2-3-1-5 Acceptable Training and Certification Processes
Operator training must evaluate operator knowledge of the minimum training requirements described for
each class of operator in Section 2-3-1(2), (3) and (4). The following is a list of acceptable approaches to
meet training requirements stated in these regulations:
(a)
Possession of a current certificate issued by the International Code Council (ICC) indicating he or
she has passed the Colorado UST System Class A or B Operator exam.
(b)
For Class C operator training, possession of a current certificate issued by the owner indicating
that he or she has successfully completed training conducted by a certified Class A or Class B
operator.
(c)
An operator training program that has received prior approval from the Director. The program
may include in-class, on-line, or hands-on training. Such a program must include an evaluation of
operator knowledge through testing, practical demonstration, or other tools determined as
acceptable by the state.
has successfully completed training conducted by a certified Class A or Class B
operator.
(c)
An operator training program that has received prior approval from the Director. The program
may include in-class, on-line, or hands-on training. Such a program must include an evaluation of
operator knowledge through testing, practical demonstration, or other tools determined as
acceptable by the state.
(d)
To address operators responsible for UST systems in multiple states, the Director may accept
operator training certification verification from other states that have equivalent operator training
requirements.
2-3-1-6 Training and Certification Deadlines and Schedules
(a)
Effective January 1, 2010, designated Class A and B operators shall be trained and possess a
current certificate issued by a Director-approved trainer indicating he or she has passed the
Colorado UST System Class A or B operator exam.
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(b)
Effective January 1, 2010, designated Class C operators shall be trained and possess a current
certificate issued by a Class A or B operator who developed or conducted the training.
(c)
By January 1, 2010, owners of UST systems shall submit a signed statement to the Director
indicating that the owner understands and is in compliance with all applicable UST requirements,
and identifying the designated Class A or B operator(s) for each facility owned. The owner shall
inform the Director of any change of designated Class A or B operator(s) no later than 30
calendar days after the change. Documentation identifying the designated Class C operators
shall be maintained on site.
icating that the owner understands and is in compliance with all applicable UST requirements,
and identifying the designated Class A or B operator(s) for each facility owned. The owner shall
inform the Director of any change of designated Class A or B operator(s) no later than 30
calendar days after the change. Documentation identifying the designated Class C operators
shall be maintained on site.
(d)
After January 1, 2010 new operators shall be trained within the following timeframes:
(1)
Class A and Class B operators must be trained within 30 calendar days after assuming
full operation and maintenance responsibilities at the UST system.
(2)
Class C operators must be trained before assuming full responsibility for responding to
emergencies.
2-3-1-7 Retraining Requirements
If the Director determines an UST system is out of compliance, the Class A and/or Class B operator must
be retrained and recertified within 90 calendar days. At a minimum, an UST system is out of
compliance if the system:
(a)
Meets any of the delivery prohibition criteria outlined in Section 6-2, or
(b)
Is not in significant compliance with other requirements, such as temporary or permanent closure,
tank registration or financial responsibility.
2-3-1-8 Documentation
Owners and operators of underground storage tank systems must maintain a list of designated Class A,
Class B, and Class C operators and maintain records verifying that training and retraining, as applicable,
have been completed, in accordance with 2-3-7 as follows:
(a)
The list must:
(1)
Identify all Class A, Class B, and Class C operators currently designated for the facility;
and
(2)
Include names, class of operator trained, date assumed duties, date each completed
initial training, and any retraining.
and Class C operators and maintain records verifying that training and retraining, as applicable,
have been completed, in accordance with 2-3-7 as follows:
(a)
The list must:
(1)
Identify all Class A, Class B, and Class C operators currently designated for the facility;
and
(2)
Include names, class of operator trained, date assumed duties, date each completed
initial training, and any retraining.
(b)
Records verifying completion of training or retraining must be a paper or electronic record for
Class A, Class B, and Class C operators. The records, at a minimum, must identify name of
trainee, date trained, operator training class completed, and list the name of the trainer or
examiner and the training company name, address, and telephone number. Owners and
operators must maintain these records for as long as Class A, Class B, and Class C operators
are designated. The following requirements also apply to the following types of training:
(1)
Records from classroom or field training programs (including Class C operator training
provided by the Class A or Class B operator) or a comparable examination must, at a
minimum, be signed by the trainer or examiner;
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(2)
Records from computer based training must, at a minimum, indicate the name of the
training program and web address, if Internet based; and
(3)
Records of retraining must include those areas on which the Class A or Class B operator
has been retrained.
2-3-1-9 Qualified Service Technician
y the trainer or examiner;
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(2)
Records from computer based training must, at a minimum, indicate the name of the
training program and web address, if Internet based; and
(3)
Records of retraining must include those areas on which the Class A or Class B operator
has been retrained.
2-3-1-9 Qualified Service Technician
(a)
Effective January 1, 2020 the following tasks shall only be conducted by a person certified by the
Director as a Qualified Service Technician.
(1)
Installation, repair, replacement, maintenance, and calibration of all UST leak detection
monitoring equipment.
(2)
Repair or maintenance work on in use UST systems, including replacement of
components such as spill buckets, overfill prevention devices, and ancillary piping
components such as flex connectors and penetration fittings located within sumps and
under-dispenser containment.
(3)
Annual monitoring system functionality testing and certification.
(4)
Secondary containment testing, including initial testing of newly installed secondary
containment systems.
(b)
The Qualified Service Technician must be on-site providing direct and personal supervision at all
times when any of the work listed above is being done on the UST system, and shall sign any
required documentation related to such work.
(c)
To obtain certification as a Qualified Service Technician, individuals shall submit a completed
application on a form provided by the Director along with the following documentation from the
Petroleum Equipment Institute, or an equivalent certification organization approved by the
Director:
(1)
A certificate indicating he or she has passed the Entry-Level Service Technician Training
Course
(2)
A certificate indicating he or she has passed the RP900 exam.
2-3-2
Spill and Overfill Prevention
d
application on a form provided by the Director along with the following documentation from the
Petroleum Equipment Institute, or an equivalent certification organization approved by the
Director:
(1)
A certificate indicating he or she has passed the Entry-Level Service Technician Training
Course
(2)
A certificate indicating he or she has passed the RP900 exam.
2-3-2
Spill and Overfill Prevention
(a)
Owners/operators must ensure that releases due to spilling or overfilling do not occur. The
owner/operator must ensure that the volume available in the tank is greater than the volume of
product to be transferred to the tank before the transfer is made and that the transfer operation is
monitored constantly to prevent overfilling and spilling.
(b)
The owner/operator must report, investigate, and clean up any spills and overfills in accordance
with Articles 4 and 5.
(c)
Owners/operators must maintain spill and overfill equipment according to Section 2-2-1(c).
(d)
Deliveries into all USTs shall be made through a drop tube that extends to within six inches of the
tank bottom.
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[Note: The transfer procedures described in National Fire Protection Association Publication 385
may be used to comply with this section. Further guidance on spill and overfill prevention appears
in American Petroleum Institute Recommended Practice 1621, Bulk Liquid Stock Control at Retail
Outlets, and National Fire Protection Association Standard 30, “Flammable and Combustible
Liquids Code.”
2-3-3
Corrosion Protection
All owners/operators of steel UST systems with corrosion protection must comply with the following
requirements to ensure that releases due to corrosion are prevented for as long as the UST system is
used to store regulated substances or permanently closed in accordance with Section 2-4-2.
Fire Protection Association Standard 30, “Flammable and Combustible
Liquids Code.”
2-3-3
Corrosion Protection
All owners/operators of steel UST systems with corrosion protection must comply with the following
requirements to ensure that releases due to corrosion are prevented for as long as the UST system is
used to store regulated substances or permanently closed in accordance with Section 2-4-2.
(a)
All UST systems equipped with cathodic protection systems must be inspected for proper
operation by a qualified cathodic protection tester in accordance with the following requirements:
(1)
Frequency. All cathodic protection systems must be tested within 6 months of installation
and at least every 3 years thereafter or according to another reasonable time frame
established by the Director; and
(2)
Inspection criteria. The criteria that are used to determine that cathodic protection is
adequate as required by this section must be in accordance with a code of practice
developed by a nationally recognized association.
[Note: National Association of Corrosion Engineers Standard RP-02-85, “Control of External
Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid Storage Systems,” may be
used to comply with paragraph (a)(2) of this section.]
(b)
UST systems with impressed current cathodic protection systems must also be inspected every
60 calendar days to ensure that the equipment is running properly.
(c)
Where internal lining was installed to satisfy corrosion protection requirements, the tank must
meet the requirements listed in 2-2-4(b).
(d)
All corrosion protection systems must be operated and maintained to continuously provide
corrosion protection to the metal components of that portion of the tank and piping that routinely
contain regulated substances and are in contact with the ground.
2-3-4
Release Detection
2-3-4-1 General requirements for all UST systems
requirements, the tank must
meet the requirements listed in 2-2-4(b).
(d)
All corrosion protection systems must be operated and maintained to continuously provide
corrosion protection to the metal components of that portion of the tank and piping that routinely
contain regulated substances and are in contact with the ground.
2-3-4
Release Detection
2-3-4-1 General requirements for all UST systems
(a)
Owners/operators of UST systems that contain a regulated substance or hazardous substance
must provide a method, or combination of methods, of release detection that:
(1)
Can detect a release from any portion of the tank and the connected underground piping
that routinely contains product;
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(2)
Is installed, calibrated, operated, and maintained in accordance with the manufacturer's
instructions, including routine maintenance and service checks for operability or running
condition. Beginning on January 1, 2020, electronic and mechanical components must be
tested for proper operation, in accordance with one of the following: manufacturer’s
instructions; a code of practice developed by a nationally recognized association or
independent testing laboratory; or requirements determined by the implementing agency
to be no less protective of human health and the environment than the two options listed
above. A test of the proper operation must be performed at least annually and, at a
minimum, as applicable to the facility, cover the following components and criteria:
tice developed by a nationally recognized association or
independent testing laboratory; or requirements determined by the implementing agency
to be no less protective of human health and the environment than the two options listed
above. A test of the proper operation must be performed at least annually and, at a
minimum, as applicable to the facility, cover the following components and criteria:
(i)
Automatic tank gauge and other controllers: test alarm; verify system
configuration; test battery backup;
(ii)
Probes and sensors: inspect for residual buildup; ensure floats move freely;
ensure shaft is not damaged; ensure cables are free of kinks and breaks; test
alarm operability and communication with controller;
(iii)
Automatic line leak detector: test operation to meet criteria in 2-3-4-3(a)(1) by
simulating a leak;
(iv)
Vacuum pumps and pressure gauges: ensure proper communication with
sensors and controller; and
(v)
Hand-held electronic sampling equipment associated with groundwater and
vapor monitoring: ensure proper operation.
[Note: The following code of practice may be used to comply with paragraph (a)(2) of this section:
Petroleum Equipment Institute Publication RP1200, “Recommended Practices for the Testing and
Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST
Facilities”.]
, and
(3)
Meets the performance requirements in 2-3-4-2, 2-3-4-3 or 2-5 as applicable, with any
performance claims and their manner of determination described in writing by the
equipment manufacturer or installer. In addition, the methods, must be capable of
detecting the leak rate or quantity specified for that method in 2-3-4-2(b), (c), (d), (h), or
(i), 2-3-4-3(a)(1) or (2), or 2-5 with a probability of detection of 0.95 and a probability of
false alarm of 0.05.
-5 as applicable, with any
performance claims and their manner of determination described in writing by the
equipment manufacturer or installer. In addition, the methods, must be capable of
detecting the leak rate or quantity specified for that method in 2-3-4-2(b), (c), (d), (h), or
(i), 2-3-4-3(a)(1) or (2), or 2-5 with a probability of detection of 0.95 and a probability of
false alarm of 0.05.
(b)
When a release detection method operated in accordance with the performance standards in 2-3-
4-2, 2-3-4-3 or 2-5 indicates a release may have occurred, owners/operators must notify the
Director in accordance with Article 4.
(c)
Any UST system that does not apply a method of release detection that complies with the
requirements of this section must complete the closure procedures in 2-4 immediately. For
previously deferred UST systems described in Sections 2-1 and 2-5, this requirement applies
after the effective dates described in 2-1-1(a)(1)(ii) and (iii) and Section 2-5-2(a).
2-3-4-2 Requirements for regulated substance UST Systems
Owners/operators of UST systems must provide release detection and the measurement of water in the
bottom of the tank, to the nearest one-eighth of an inch, at least every 30 calendar days or as otherwise
specified within regulations. Measurable water within any tank shall not exceed one-fourth of an inch. The
methods that satisfy release detection requirements are listed below:
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(a)
Inventory Control.
(1)
Product inventory control can be used as the sole method for release detection:
y 30 calendar days or as otherwise
specified within regulations. Measurable water within any tank shall not exceed one-fourth of an inch. The
methods that satisfy release detection requirements are listed below:
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(a)
Inventory Control.
(1)
Product inventory control can be used as the sole method for release detection:
(i)
Until 10 years after the tank is installed or upgraded according to 2-2-4, and
(ii)
If tank tightness testing as described in (c) of this section is performed at least
every 5 years after the tank is installed or upgraded.
(2)
Product inventory control (or another test of equivalent performance) must be conducted
monthly to detect a release of at least 1.0 percent of flow-through plus 130 gallons on a
monthly basis in the following manner:
(i)
Inventory volume measurements for regulated substance inputs, withdrawals,
and the amount still remaining in the tank are recorded each operating day;
(ii)
The equipment used is capable of measuring the level of product over the full
range of the tank's height to the nearest one-eighth of an inch;
(iii)
The regulated substance inputs are reconciled with delivery receipts by
measurement of the tank inventory volume before and after delivery; and
(iv)
Product dispensing is metered and recorded within an accuracy of 6 cubic inches
for every 5 gallons of product withdrawn.
[Note: Practices described in the American Petroleum Institute Recommended Practice 1621,
“Bulk Liquid Stock Control at Retail Outlets”, may be used, where applicable, as guidance in
meeting the requirements of this subsection.]
(b)
Manual tank gauging.
(1)
Manual tank gauging may be used as the sole method of release detection:
accuracy of 6 cubic inches
for every 5 gallons of product withdrawn.
[Note: Practices described in the American Petroleum Institute Recommended Practice 1621,
“Bulk Liquid Stock Control at Retail Outlets”, may be used, where applicable, as guidance in
meeting the requirements of this subsection.]
(b)
Manual tank gauging.
(1)
Manual tank gauging may be used as the sole method of release detection:
(i)
For the life of a tank that has a nominal capacity of 1,000 gallons or less that
meet the tank diameter criteria in the table in paragraph (3)(iv) of this section, or
(ii)
For a tank with a nominal capacity of 1,001 to 2,000 gallons:
(A)
Until 10 years after the tank is installed or upgraded according to 2-2-4,
and
(B)
If tank tightness testing as described in (c) of this section is performed at
least every 5 years after the tank is installed or upgraded.
(2)
For tanks of greater than 2,000 gallons nominal capacity, manual tank gauging may not
be used to satisfy release detection requirements of this section.
(3)
Manual tank gauging must meet the following requirements:
(i)
Tank liquid level measurements are taken at the beginning and ending of a
period using the appropriate minimum duration of test value in the table below
during which no liquid is added to or removed from the tank;
(ii)
Level measurements are based on an average of two consecutive stick readings
at both the beginning and end of the period;
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(iii)
The equipment used is capable of measuring the level of product over the full
range of the tank's height to the nearest one-eighth of an inch;
quid is added to or removed from the tank;
(ii)
Level measurements are based on an average of two consecutive stick readings
at both the beginning and end of the period;
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(iii)
The equipment used is capable of measuring the level of product over the full
range of the tank's height to the nearest one-eighth of an inch;
(iv)
A release is suspected and subject to the requirements of Article 4 if the variation
between beginning and ending measurements exceeds the weekly or monthly
standards in the following table:
Nominal Tank Capacity
(Gallons)
Tank
Dimensions
Weekly
Standard
1 Test
(Gallons)
Monthly Standard
Average of 4
Tests
(Gallons)
Minimum
Rest Period
Duration
Up to 550
N/A
10
5
36 hours
551-1,000
64” diameter
9
4
44 hours
551-1,000
48” (diameter
12
6
58 hours
551-1,000
(also requires periodic
tank tightness testing)
N/A
13
7
36 hours
1,000
64” (diameter)
x 73” (length)
9
4
44 hours
1,000
48” (diameter)
x 128” (length)
12
6
58 hours
1,001 - 2,000
(also requires periodic
tank tightness testing)
N/A
26
13
36 hours
(c)
Tank tightness testing. Tank tightness testing (or another test of equivalent performance) must be
capable of detecting a 0.1 gallon per hour leak rate, with a probability of detection of 0.95, from
any portion of the tank that routinely contains product while accounting for the effects of thermal
expansion or contraction of the product, vapor pockets, tank deformation, evaporation or
condensation, and the location of the water table.
testing (or another test of equivalent performance) must be
capable of detecting a 0.1 gallon per hour leak rate, with a probability of detection of 0.95, from
any portion of the tank that routinely contains product while accounting for the effects of thermal
expansion or contraction of the product, vapor pockets, tank deformation, evaporation or
condensation, and the location of the water table.
(d)
Automatic tank gauging. Equipment for automatic tank gauging that tests for the loss of product
and conducts inventory control must meet the following requirements:
(1)
The automatic product level monitor test can detect a 0.2 gallon per hour leak rate from
any portion of the tank that routinely contains product;
(2)
The automatic tank gauging equipment must meet the inventory control (or other test of
equivalent performance) requirements of (a) of this section; and
(3)
The test must be performed with the system operating in one of the following modes:
(i)
In-tank static testing conducted at least once every 30 calendar days; or
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