25 Pa. Code § 245.443 - Requirements for hazardous substance underground storage tank systems
Owners and operators of hazardous substance underground storage tank systems shall provide release detection that meets the following requirements:
(1) Hazardous
substance underground storage tank systems installed after November 10, 2007,
shall perform interstitial monitoring in accordance with §
245.444(6)
(relating to methods of release detection for tanks).
(2) Release detection at hazardous substance
underground storage tank systems installed on or before November 10, 2007, must
meet the following requirements:
(i) Secondary
containment systems.
(A) Secondary containment
systems shall be designed, constructed and installed to:
(I) Contain regulated substances released
from the tank system until they are detected and removed.
(II) Prevent the release of regulated
substances to the environment at any time during the operational life of the
underground storage tank system.
(III) Be checked for evidence of a release at
least every 30 days.
(3) The provisions of
40 CFR
264.193 (relating to containment and
detection of releases) may be used to comply with the requirements in this
paragraph.
(i) Double walled tanks shall be
designed, constructed and installed to:
(A)
Contain a release from any portion of the inner tank within the outer
wall.
(B) Detect the failure of the
inner wall.
(ii) External
liners, including vaults, shall be designed, constructed and installed to:
(A) Contain 100% of the capacity of the
largest tank within its boundary.
(B) Prevent the interference of precipitation
or ground-water intrusion with the ability to contain or detect a release of
regulated substances.
(C) Surround
the tank completely making it capable of preventing lateral as well as vertical
migration of regulated substances.
(4) Underground piping shall be equipped with
secondary containment that satisfies the requirements in subparagraph (i) for
example, trench liners, jacketing or double-walled pipe. In addition,
underground piping that conveys regulated substances under pressure shall be
equipped with an automatic line leak detector in accordance with §
245.445(1)
(relating to methods of release detection for piping).
(5) Other methods of release detection may be
used if owners and operators:
(1) Demonstrate
to the Department that an alternate method can detect a release of the stored
substance as effectively as any of the methods allowed in §
245.444(1)-(8)
can detect a release of petroleum.
(ii)
Provide information to the Department on effective corrective action
technologies, health risks and chemical and physical properties of the stored
substance, and the characteristics of the underground storage tank
site.
(iii) Obtain approval from
the Department to use the alternate release detection method before the
installation and operation of the new underground storage tank
system.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.