1. (a) A composting facility shall be operated in a manner that limits the production and off-site dispersal of odors to the greatest extent practicable.

2. (b) All wastes received by the facility shall be inspected to identify and remove:

   1. (1) Wastes that are not organic in nature;
   2. (2) Wastes which are prohibited wastes as specified in (c) below; and
   3. (3) Any other wastes having the potential to adversely affect the quality or usability of the finished compost.

3. (c) A composting facility authorized pursuant to this chapter shall not receive the following types of waste:

   1. (1) Asbestos;
   2. (2) Construction and demolition debris;
   3. (3) Liquid wastes, unless amended with an approved bulking agent prior to composting;
   4. (4) Infectious wastes identified in Env-Sw 904.01(a);
   5. (5) Contaminated soils or absorbent media;
   6. (6) Radioactive materials as defined and regulated by the New Hampshire rules for the control of radiation, He-P 2000 and He-P 4000;
   7. (7) Ash from the combustion of municipal solid waste; and
   8. (8) Sludge or septage as defined by RSA 485-A:2.

4. (d) Putrescible wastes not incorporated into an active composting process or amended with high carbon bulking agents within 2 hours of receipt shall:

   1. (1) Be stored in a closed container designed to prevent the dispersal of odors, release of leachate and the attraction of birds, insects, rodents, and other vectors; and
   2. (2) Not be stored at the facility longer than 7 days before being incorporated into an active composting process.
5. (e) Compostable feedstocks shall be combined into a homogenous mixture that will support aerobic composting conditions.

6. (f) During the active composting process, windrows, piles, or vessels shall be inspected, monitored, and actively managed to ensure that:

   1. (1) Aerobic composting conditions are maintained; and
   2. (2) The process complies with the general operating requirements in Env-Sw 1005.01.

7. (g) Temperature shall be monitored and recorded as follows:

   1. (1) Temperature readings shall be recorded as specified in Env-Sw 605.03; and

   2. (2) For each temperature monitoring event, temperature readings shall be taken and recorded as follows:

      1. a. For a windrow or aerated static pile, in at least five evenly-spaced locations along the length of the windrow or pile;
      2. b. For a round pile, in at least 2 locations on opposite sides of the pile; and
      3. c. For an in-vessel system, in at least 2 evenly-spaced locations per vessel, compartment, bay, or equivalent.
8. (h) Prior to distribution and use, finished compost shall meet the quality requirements specified in Env-Sw 605.04, and the maturity requirements specified in Env-Sw 605.05.

9. (i) Testing to verify compliance with (h) above shall be conducted:

   1. (1) At least once annually and when requested by the department pursuant to Env-Sw 2000; and
   2. (2) On the basis of representative sampling.

10. (j) The following operational records, in conformance with Env-Sw 1105.06, shall be maintained and include:

    1. (1) Source, type, quantity, and date of materials received at the facility;
    2. (2) Date of individual windrow or pile construction and breakdown, or vessel filling and emptying;
    3. (3) Composition of the windrow, pile, or vessel;
    4. (4) Date and time of turning or aeration;

    5. (5) Temperature monitoring records, including:

       1. a. Temperature readings, including units;
       2. b. Date and time of temperature readings;
       3. c. Location and depth of temperature readings;

    6. (6) Process monitoring observations, including, but not limited to:

       1. a. Moisture content; and
       2. b. Odor observations;
    7. (7) Records of nuisance complaints made by abutters, or other parties, and corresponding response actions taken by the facility operators;
    8. (8) Date on which composted material begins and finishes curing;

    9. (9) Sampling and testing records, in accordance with Env-Sw 605.04 and Env-Sw 605.05, including;

       1. a. Date, time, volume, method, and type of samples taken; and
       2. b. Testing results;
    10. (10) Quantities of finished compost produced on an annual basis;
    11. (11) Quantities of bypass waste, as defined in Env-Sw 102, removed prior to composting; and
    12. (12) Quantities of residual waste, as defined in Env-Sw 104, removed after composting.

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 2305.02); ss by #10596, eff 7-1-14; ss #13358, eff 4-1-22