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Section 25317 Of Article 2. Definitions From California Health And Safety Code >> Division 20. >> Chapter 6.8. >> Article 2.

25317
. "Hazardous substance" does not include:
  (a) Petroleum, including crude oil or any fraction thereof which is not otherwise specifically listed or designated as a hazardous substance in subdivisions (a) to (f), inclusive, of Section 25316, and natural gas, natural gas liquids, liquefied natural gas, or synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas), or the ash produced by a resource recovery facility utilizing a municipal solid waste stream.
  (b) Nontoxic, nonflammable, noncorrosive stormwater runoff drained from underground vaults, chambers, or manholes into gutters or storm sewers.