RELEASE DETECTION
§ 245.441. General requirements for underground storage tank systems.
(a) Owners and operators of new and existing underground storage tank systems shall 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.
(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.
(3) Meets the performance requirements in § 245.444 or § 245.445 (relating to methods of release detection for tanks; and methods of release detection for piping), with any performance claims and their manner of determination described in writing by the equipment manufacturer or installer. In addition, methods in § § 245.444 and 245.445 must be capable of detecting the leak rate or quantity specified for that method in the corresponding section of this subchapter with a probability of detection (Pd) of 0.95 and a probability of false alarm (Pfa) of 0.05.
(i) Test method performance claims shall be verified by an independent third-party using leak rates that are unknown to the tester.
(ii) When the EPA evaluation protocol for a method changes, the manufacturer shall reevaluate the method within 24 months of the new protocol’s effective date for its continued use in this Commonwealth.
(b) When a release detection method operated in accordance with the performance standards in § § 245.444 and 245.445 indicates a release may have occurred, owners and operators shall investigate the suspected release in accordance with Subchapter D (relating to corrective action process for owners and operators of storage tanks and storage tank facilities and other responsible parties).
(c) Owners and operators of underground storage tank systems shall comply with the release detection requirements in this subchapter.
(d) An existing tank system that cannot apply a method of release detection that complies with this subchapter must immediately empty the tank and complete the closure procedures in § § 245.451—245.455 (relating to out-of-service underground storage tank systems and closure).
Source The provisions of this § 245.441 amended November 9, 2007, effective November 10, 2007, 37 Pa.B. 5979; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7875. Immediately preceding text appears at serial pages (347259) to (347260) and (331079) to (331080).
Cross References This section cited in 25 Pa. Code § 245.403 (relating to applicability); 25 Pa. Code § 245.444 (relating to methods of release detection for tanks); and 25 Pa. Code § 245.446 (relating to release detection recordkeeping).
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