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The Pennsylvania Code website reflects the Pennsylvania Code changes effective through 53 Pa.B. 7346 (November 25, 2023).

25 Pa. Code § 245.306. Interim remedial actions.

§ 245.306. Interim remedial actions.

 (a)  A responsible party shall immediately initiate the following interim remedial actions necessary to prevent or address an immediate threat to human health or the environment from a release while initiating, as necessary, one or more of the tasks identified in §  245.309(c) (relating to site characterization):

   (1)  Remove the regulated substance from the storage tank system to prevent further release to the environment.

   (2)  Identify, mitigate and continue to monitor and mitigate, fire, explosion and safety hazards posed by vapors and free product.

   (3)  Prevent further migration of the regulated substance released from the storage tank system into the environment as follows:

     (i)   If contaminated soil exists at the site, the interim remedial action may include excavation of the soils for treatment or disposal.

     (ii)   If free product is present, free product recovery shall be initiated immediately.

   (4)  Identify and analyze samples of affected water supplies and water supplies with the potential to be affected in a reasonable and systematic manner consistent with §  245.309(b)(1) and (4) and (c)(4), (6), (12) and (16). The responsible party shall restore or replace an affected or diminished water supply in accordance with §  245.307 (relating to affected or diminished water supplies). The responsible party shall provide a copy of the sample results to the water supply owner and the Department within 5 days of receipt of the sample results from the laboratory.

 (b)  At sites where free product recovery, regulated substance removal or contaminated soil excavation is performed, the responsible party shall:

   (1)  Conduct recovery, removal, storage, treatment and disposal activities in a manner that prevents the spread of contamination into previously uncontaminated areas.

   (2)  Handle flammable products in a safe and competent manner to prevent fires or explosions.

   (3)  Obtain required State and local permits or approvals for treatment and disposal activities.

   (4)  Minimize the amount of soil and subsurface material affected by a release of a regulated substance by segregating the unaffected soil and subsurface material from the material affected by a release of a regulated substance.

 (c)  If interim remedial actions such as free product recovery affect or diminish the quality or quantity of a water supply, the responsible party shall restore or replace the water supply in accordance with §  245.307.

 (d)  Where soil and subsurface material affected by a release is removed from the site, the person removing the material shall provide to the owner, operator, landowner or other responsible party a receipt documenting acceptance of the material at a permitted treatment or disposal facility.

 (e)  A responsible party shall notify the Department by telephone or e-mail as soon as practicable, but no later than 24 hours, after the initiation of interim remedial actions.


   The provisions of this §  245.306 amended November 30, 2001, effective December 1, 2001, 31 Pa.B. 6615; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7875. Immediately preceding text appears at serial pages (347246) and (331045) to (331046).

Cross References

   This section cited in 25 Pa. Code §  245.309 (relating to site characterization); and 25 Pa. Code §  245.310 (relating to site characterization report).

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