1. (a) Unless the department approves the activity in question as protective of human health and safety, and of the environment, the owner or operator may not blend contaminated soil with uncontaminated soil, and shall

   1. (1) segregate contaminated soil based on

      1. (A) the intended corrective action techniques; and
      2. (B) the specific contaminants present;

   2. (2) store contaminated soil

      1. (A) 100 feet or more from surface water, a private water system as defined in 18 AAC 80.1990, 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(a)(2); and
      2. (B) 200 feet or more from a water source serving a community water system, non-transient non-community water system, or transient non-community-water system, as defined in 18 AAC 80.1990;
   3. (3) place petroleum-contaminated soil on a liner that meets the minimum specifications for the testing methods set out in Table B of this section;
   4. (4) 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
   5. (5) 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 B. 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 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.

2. (b) An owner or operator shall obtain approval before moving or disposing of contaminated soil or groundwater subject to the requirements under this chapter.

(Eff. 1/22/99, Register 149; am 6/25/99, Register 150; am 4/16/2000, Register 154; am 6/17/2015, Register 214; am 5/3/2019, Register 230)

Authority: AS 46.03.020, AS 46.03.710, AS 46.04.070, AS 46.03.050, AS 46.03.745, AS 46.09.020, AS 46.03.365, AS 46.04.020