Code of Maine Rules › 06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL › Chapter 691 - RULE FOR UNDERGROUND OIL STORAGE FACILITIES › Section 096-691-3 - Definitions

Current through 2024-29, July 17, 2024
The following terms as used in this Chapter have the
				  following meaning:
A.
A/B
				Operator.
"A/B Operator" means the owner, employee or agent who has
				either primary responsibility for operation and maintenance of the facility or
				responsibility for the day-to-day on-site operation and maintenance of the
				facility.
B.
Ancillary
				equipment.
"Ancillary equipment" means devices including but not limited
				to, piping fittings, flanges, valves and pumps used to distribute, meter or
				control the flow of oil to or from an underground oil storage tank.
C.
Board.
"Board" means the
				Maine Board of Environmental Protection.
D.
Cathode.
"Cathode" means the
				electrode of an electrochemical cell at which the chemical process of reduction
				occurs.
E.
Cathodic
				protection tester.
"Cathodic protection tester" means an underground oil
				storage tank installer or inspector certified by the Maine Board of Underground
				Storage Tank Installers (BUSTI), who also meets the requirements of Appendix M
				of this Chapter.
F.
Cathodically protected.
"Cathodically protected" means the use of
				a technique to prevent the corrosion of a metal surface by making that surface
				the cathode of an electrochemical cell. For example, a tank system can be
				protected against corrosion through the application of either a galvanic or an
				impressed current cathodic protection system. Cathodic protection techniques
				are those that are consistent with the National Association of Corrosion
				Engineers (NACE) International publication, "Standard Practice, External
				Corrosion Control of Underground Storage Tank Systems by Cathodic Protection,"
				NACESP 0285, or "Standard Practice, Control of External Corrosion on
				Underground or Submerged Metallic Piping Systems", NACESP 0169.
G.
Cathodic protection
				monitoring.
"Cathodic protection monitoring" means a process of
				measuring the structure to electrolyte potential to determine whether a
				cathodically protected structure is being adequately protected against
				corrosion. Cathodic protection monitoring shall be performed according to the
				requirements of Appendix A.
H.
Class I liquids.
"Class I liquids" means liquids having a flash
				point below 100 degrees F.
I.
Commissioner.
"Commissioner" means the Commissioner of the
				Department of Environmental Protection, or his or her designee.
J.
Compatible.
"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 in the
				underground storage tank.
K.
Containment sump.
"Containment sump" means a liquid-tight
				container that protects the environment by containing leaks and spills of oil
				from piping, dispensers, pumps and related components in the containment area.
				Containment sumps may be single walled or secondarily contained and include
				sumps 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), and spill
				buckets.
L.
Contamination.
"Contamination" for the purposes of this Chapter
				only and only as applied to ground water, surface water, sediment and soils,
				means oil pollution attributable to an underground oil storage facility or the
				underground piping of an aboveground oil storage facility and exceeding any one
				of the following standards:
(1) The presence
				of free product, an oil sheen or oil saturated soils;
(2) Primary drinking water standards adopted
				in rule by the Maine Department of Health and Human Services,
Rules
				Relating to Drinking Water
,10-144 C.M.R. ch. 231;
(3)
Maximum Exposure Guidelines (MEG)
				for Drinking Water
published on December 31, 2016 by the Maine Center
				for Disease Control and Prevention in the Department of Health and Human
				Services;
(4) A statistically
				significant increase in the concentration of measured parameters at on-site or
				down-gradient locations by comparison with representative background values, as
				demonstrated by statistical methods and procedures using a 95 percent level of
				confidence, approved by the Commissioner and consistent with the provisions of
Standards for Owners and Operators of Hazardous Waste Treatment,
				Storage, and Disposal Facilities,
40 C.F.R. §
											264.97 as amended up to July 1, 2018 (except
				that where the "Regional Administrator" is referred to, the "Commissioner" is
				meant);
(5) Water where volatile or
				extractable petroleum hydrocarbon fractions or target compounds are
				documented;
(6) Soils visibly
				stained or discolored by heavy oil; or
(7) Soils where volatile or extractable
				petroleum hydrocarbon fractions or target compounds equal or exceed reporting
				levels in Table 1 of Appendix Q of this Chapter.