(a) An existing facility may remain located in a 100-year floodplain only if:
- (1) The facility is designed, constructed, operated, and maintained to prevent washout of any hazardous waste by a 100-year flood; or
- (2) The operator ensures that all waste can be removed safely to a location where the wastes will not be vulnerable to flood waters before flood waters can reach the facility.
- (b) Floodplain determinations shall be made in accordance with 40 CFR 270.14(b)(11)(iii).
- (c) No person shall place any hazardous waste in a salt dome formation, salt bed formation, underground mine, or cave.
- (d) No portion of a facility where treatment, storage, or disposal of hazardous waste is conducted shall be located within 61 meters or 200 feet of a fault that has had displacement in Holocene time.
Source. (See Revision Note at chapter heading for Env-Hw 300) #9362, eff 1-28-09; ss by #12345, eff 8-14-17