Regional Administrator determination of substantial harm and significant and substantial harm.

§ 118.5 Regional Administrator determination of substantial harm and significant and substantial harm.

(a) Regional Administrator authority to require facility response plans and amendments. After considering the factors in paragraph (b) of this section, the Regional Administrator may at any time require the owner or operator of any non-transportation-related onshore facility to prepare and submit a facility response plan under this section. If such a determination is made, the Regional Administrator shall notify the owner or operator in writing and shall provide a basis for the determination and the owner or operator shall submit the facility response plan to the Regional Administrator as per the preparation, submission, and implementation guidelines in § 118.4. The Regional Administrator may require amendments to any facility response plan that does not meet the requirements § 118.11.

(b) Regional Administrator substantial harm determination. To determine whether a non-transportation-related onshore facility could, because of its location, reasonably be expected to cause substantial harm to the environment by a discharge, or substantial threat of a discharge, of CWA hazardous substances into or on the navigable waters or a conveyance to navigable waters, the Regional Administrator may consider the following:

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