1. A. A permit holder shall:

   1. (1) Upon initial receipt of permit from the Office, test, using a third-party laboratory, the reduction facility’s initial 20 instances of soil remains for the parameters identified in Table A, and any additional instances of soil remains necessary to achieve 20 reductions meeting the parameters identified in Table A;
   2. (2) After 20 soil remains meet the limits outlined in Table A, analyze, at a minimum, 25 percent of a reduction facility’s monthly instances of soil remains for the parameters identified in Table A until 80 total instances have met the requirements in Table A;

   3. (3) Ensure the third-party laboratory described under §A(1) of this regulation:

      1. (a) Uses a sampling method such as described in the U.S. Composting Council 2002 Test Methods for the Examination of Composting and Compost, Method 02.01-A through E, or its successor;
      2. (b) Confirms Soil remains have less than 0.01 mg/kg dry weight of physical contaminants which include, but are not limited to, intact bone, dental fillings, and medical implants; and
      3. (c) Tests for arsenic, cadmium, lead, mercury, and selenium, and either fecal coliform or salmonella in soil remains to meet the testing parameters and limits identified in Table A.
2. B. Other local, State, or federal authorities may require tests of soil remains for additional parameters.

3. C. A permit holder may not release any soil remains that exceed the limits identified in Table A.

   1. D. Any soil remains that exceed the parameters identified in Table A must undergo additional pathogen treatment processes as described in Title 40 of the Code of Federal Regulations, Part 503, Appendix B until the soil tests within the limits identified in Table A. Table A Testing Parameters

      Metals and other testing parameters	Limit (mg/kg dry weight), unless otherwise specified
      Fecal coliform	< 1,000 Most probable number per gram of total solids (dry weight)
      or
      Salmonella	< 3 Most probable number per 4 grams of total solids (dry weight)
      and
      Arsenic	≤ 20 ppm
      Cadmium	≤ 10 ppm
      Lead	≤ 150 ppm
      Mercury	≤ 8 ppm
      Selenium	≤ 18 ppm

Authority: Business Regulation Article, §5-204, Annotated Code of Maryland

Effective date: March 30, 2026 (53:6 Md. R. 287)