A facility which composts food waste shall be eligible for a permit-by-notification pursuant to Env-Sw 311, provided that the facility meets the requirements of this chapter and the following:

1. (a) The facility shall comply with the requirements of Env-Sw 1200 except that alternative operator training may be substituted for the operator certification requirements specified in Env-Sw 1202.05(d), provided that:

   1. (1) Documentation verifying that each facility operator has completed alternative training is maintained in the facility’s records, and

   2. (2) The alternative training:

      1. a. Meets the purposes stated in Env-Sw 1601.01;
      2. b. Provides information about the basic principles of composting and how to facilitate an aerobic composting process; and
      3. c. Provides information about monitoring and troubleshooting the compost process to minimize nuisance conditions and adverse impacts to public health, safety and the environment;
2. (b) The facility receives no more than 10 tons of solid waste per day, averaged monthly;

3. (c) The facility composts only source-separated food waste, including meat and dairy matter, in combination with any of the following;

   1. (1) Yard waste;
   2. (2) Farming crop residuals;
   3. (3) Animal manures;
   4. (4) Compostable paper, packaging, containers, bags, and serviceware; and
   5. (5) Approved bulking agents as defined in Env-Sw 102.

4. (d) To facilitate aerobic composting conditions, the facility shall combine compostable feedstocks to produce a homogenous mixture that exhibits the following initial characteristics:

   1. (1) A carbon-to-nitrogen (C:N) ratio of at least 25:1;
   2. (2) A moisture level between 50 and 60 percent; and
   3. (3) A bulk density not more than 1,100 pounds per cubic yard.

5. (e) To limit the production and off-site dispersal of nuisance odors, the facility shall:

   1. (1) Incorporate incoming putrescible wastes into a sorbent, high carbon bulking agent within 2 hours of receipt, or otherwise store the waste as required by Env-Sw 605.02(d);
   2. (2) Maintain aerobic conditions throughout windrows or piles;
   3. (3) Cover odorous piles with a layer of finished compost, or a high carbon amendment as necessary;
   4. (4) Contain and treat emissions from active aeration systems; and
   5. (5) Alter the compost recipe or turning procedures as needed to alleviate odor issues;
6. (f) Following the cessation of facility operations or any other trigger event for closure as provided in Env-Sw 1006, the permittee shall close the facility in accordance with Env-Sw 606, Env-Sw 1006, and Env-Sw 1205.

Source. #5172, eff 7-1-91; amd by #5295, eff 12-24-91; ss by #6535, INTERIM, eff 7-1-97, EXPIRES: 10-29-97; ss by #6619-B, eff 10-29-97; (See Revision Note at chapter heading for Env-Sw 600); ss by #8459, eff 10-28-05 (formerly Env-Wm 2307.02); ss by #10596, eff 7-1-14; ss by #13358, eff 4-1-22