Haw. Code R. § 11-264-18 - Location standards

(a) Seismic considerations:

(1) Portions of new facilities where treatment, storage, or disposal of hazardous waste will be conducted must not be located within 61 meters (200 feet) of a fault which has had displacement in Holocene time.

(2) As used in paragraph (a)(1):

(i) "Fault'' means a fracture along which rocks on one side have been displaced with respect to those on the other side.

(ii) "Displacement'' means the relative movement of any two sides of a fault measured in any direction.

(iii) "Holocene'' means the most recent epoch of the Quaternary period, extending from the end of the Pleistocene to the present.

(b) Floodplains:

(1) A facility located in a 100-year floodplain must be designed, constructed, operated, and maintained to prevent washout of any hazardous waste by a 100-year flood, unless the owner or operator can demonstrate to the director's satisfaction that:

(i) Procedures are in effect which will cause the waste to be removed safely, before flood waters can reach the facility, to a location where the wastes will not be vulnerable to flood waters; or

(ii) For existing surface impoundments, waste piles, land treatment units, landfills, and miscellaneous units, no adverse effects on human health or the environment will result if washout occurs, considering:

(A) The volume and physical and chemical characteristics of the waste in the facility;

(B) The concentration of hazardous constituents that would potentially affect surface waters as a result of washout;

(C) The impact of such concentrations on the current or potential uses of and water quality standards established for the affected surface waters; and

(D) The impact of hazardous constituents on the sediments of affected surface waters or the soils of the 100-year floodplain that could result from washout.

(2) As used in paragraph (b)(1):

(i) "100-year floodplain'' means any land area which is subject to a one percent or greater chance of flooding in any given year from any source.

(ii) "Washout'' means the movement of hazardous waste from the active portion of the facility as a result of flooding.

(iii) "100-year flood'' means a flood that has a one percent chance of being equalled or exceeded in any given year.

(c) Salt dome formations, salt bed formations, underground mines and caves. The placement of any non-containerized or bulk liquid hazardous waste in any salt dome formation, salt bed formation, underground mine or cave is prohibited.

Notes

Haw. Code R. § 11-264-18

[Eff 6/18/94; comp] (Auth: HRS §§ 342J-4, 342J-31, 342J-34, 342J-35) (Imp: 40 C.F.R. §264.18)