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17.50.1602    DEFINITIONS

In this subchapter, the following terms shall have the meanings, interpretations, or acronyms provided below:

(1) "1,2 DCA" means 1,2-dichloroethane.

(2) "1,2 EDB" means 1,2-dibromoethane.

(3) "Below treatment zone" or "BTZ" means the undisturbed natural soil within the treatment cell of a landfarm facility that directly underlies the treatment zone to a depth of 3 feet.

(4) "Bioremediation" is the treatment of pollutants or waste (as in an oil spill, contaminated ground water, or an industrial process) by the use of microorganisms (as bacteria) to break down undesirable substances.

(5) "BTEX" means benzene, toluene, ethylbenzene, and xylene.

(6) "C:N:P" means carbon to nitrogen to phosphorus ratio.

(7) "Contaminated soil" has the meaning specified in ARM 17.50.502.

(8) "EPH" means extractable petroleum hydrocarbon.

(9) "Intermediate landfarm facility" has the meaning specified in ARM 17.50.403.

(10) "Landfarm facility" has the meaning specified in ARM 17.50.403.

(11) "Major landfarm facility" has the meaning specified in ARM 17.50.403.

(12) "Minor landfarm facility" has the meaning specified in ARM 17.50.403.

(13) "MTBE" means methyl tert-butyl ether.

(14) "One-time landfarm" has the meaning specified in ARM 17.50.403.

(15) "Remediation" means the act of reducing contamination to a level that is protective of human health and the environment.

(16) "TCLP" means toxicity characteristic leaching procedure.

(17) "TPH" means total petroleum hydrocarbon.

(18) "Treatment cell" means the prepared area of a landfarm facility where contaminated soil is undergoing remediation.

(19) "Treatment season" means April through October unless otherwise specified by the department.

(20) "Treatment zone" or "TZ" means the total space within a treatment cell that contains the contaminated soils that are being remediated. The treatment zone includes the contaminated soils applied to the treatment cell and any material incorporated into them.

(21) "Unstable area" has the meaning specified in ARM 17.50.1002.

(22) "Uppermost aquifer" has the meaning specified in ARM 17.50.1102.

(23) "VPH" means volatile petroleum hydrocarbon.

 

History: 75-10-204, MCA; IMP, 75-10-204, MCA; NEW, 2017 MAR p. 285, Eff. 3/11/17.

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