Alaska Admin. Code tit. 18, § 75.370 – Soil storage and disposal

(a) Unless the department approves the activity in question as protective of human health, safety, and welfare, and of the environment, a responsible person may not blend contaminated soil with uncontaminated soil and shall
1. (1) segregate contaminated soil based on
  1. (A) the intended cleanup alternatives; and
  2. (B) the specific hazardous substance present;
2. (2) store contaminated soil
  1. (A) 100 feet or more from surface water, a private water system, or a fresh water supply system that uses groundwater for a use designated in 18 AAC 70.020(a)(1)(A) and 18 AAC 70.050(2); and
  2. (B) 200 feet or more from a water source serving a community water system, a non-transient non-community water system, or a transient non-community water system, as defined in 18 AAC 80.1990;
3. (3) place contaminated soil on a liner or on or within another impermeable surface that prevents soil and groundwater beneath the liner from becoming contaminated;
4. (4) place petroleum-contaminated soil on a liner that meets the minimum specifications for the testing methods set out in Table D of this section;
5. (5) place nonpetroleum contaminated soil on a liner compatible with the type of hazardous substance, and meet the general strength and thickness requirements of Table D;
6. (6) cover and protect the contaminated soil stockpile from weather with no less than a six-mil, reinforced polyethylene liner or its equivalent, with the edge of the cover lapped over the bottom liner to prevent water running through the soil; and
7. (7) inspect and maintain the contaminated soil stockpile regularly to ensure that the cover remains intact and that the soil and any liquid leachate derived from the soil is contained.
TABLE D. BOTTOM LINER SPECIFICATIONS
Method Coated Fabric Extruded Fabric Short-term storage of petroleum-contaminated soil (less than 180 days) Cold crack (ASTM D 2136-02(2012), updated 2012)-60° Fahrenheit-60° FahrenheitBlack carbon content (ASTM D 1603-14, updated 2014)two percent or greatertwo percent or greaterTensile strength (ASTM D 751-06(2011), updated 2011)125 pounds (warp)N/AMullen burst (ASTM D 751-06(2011), updated 2011)250 pounds per square inch (psi)N/AOne inch tensile strength (ASTM D 882-12, updated August 2012)N/A25 pounds (warp)One inch elongation MD (machine direction)N/A550 percentNominal thickness10 mils10 milsOil resistance (ASTM D 471-12a, updated December 2012)No signs of deterioration and more than 80 percent retention of tensile and seam strength after immersion for 30 days at 73° FahrenheitNo signs of deterioration and more than 80 percent retention of tensile and seam strength after immersion for 30 days at 73° FahrenheitLong-term storage of petroleum-contaminated soil (180 days to two years) Cold crack (ASTM D 2136-02(2012), updated 2012)-60° Fahrenheit-60° FahrenheitBlack carbon content (ASTM D 1603-12, updated May 2012)two percent or greatertwo percent or greaterTensile strength (ASTM D 751-06(2011), updated 2011)300 pounds (warp)N/AMullen burst (ASTM D 751-06(2011), updated May 2011)500 pounds per square inch (psi)N/AOne inch tensile strength (ASTM D 882-12, updated August 2012)N/A45 pounds (warp)One inch elongation MD (machine direction)N/A625 percentNominal thickness20 mils20 milsOil resistance (ASTM D 471-12a, updated December 2012)No signs of deterioration and more than 80 percent retention of tensile and seam strength after immersion for 30 days at 73° FahrenheitNo signs of deterioration and more than 80 percent retention of tensile and seam strength after immersion for 30 days at 73° FahrenheitThe ASTM International methods referred to in this table are adopted by reference. "N/A" means not applicable.
(b) A responsible person, owner, or operator shall obtain approval before moving or disposing of soil subject to the site cleanup rules.

(Eff. 1/22/99, Register 149; am 8/27/2000, Register 155; am 10/9/2008, Register 188; am 6/17/2015, Register 214; am 11/6/2016, Register 220; am 9/29/2018, Register 227)

Authority: AS 46.03.020, AS 46.03.740, AS 46.04.070, AS 46.03.050, AS 46.03.745, AS 46.09.020, AS 46.03.710, AS 46.04.020