Okla. Admin. Code § 252:515-43-72

Current through Vol. 41, No. 19, June 17, 2024

Section 252:515-43-72 - Class III design standards

In addition to meeting Class I and II design standards, Class III facilities shall comply with the following standards and submit design plans for approval with the facility application:

(1)All-weather pad. Tipping, grinding, shredding, mixing, active composting, curing, screening, and finished compost storage areas must take place on an all-weather pad that meets the following criteria:

(A) five feet or more separation from the top of groundwater;

(B) soils within the 5 feet separation distance are composed of any combination of the following types: clay loam, silty clay loam, clay, and silty clay; exhibiting hydraulic conductivity of 1 x 10 ^-5 cm/second, or less;

(C) if either less than 5 feet separation distance from the top of groundwater or more permeable soils than those listed in (2) above, a constructed surface is required for tipping, grinding, shredding, mixing and active composting areas; while an all-weather pad is allowed for curing and finished product storage. The constructed surface can be: concrete, asphalt, stabilized subgrade, stabilized aggregate or other approved methods; and

(D) an all-weather pad shall be of sufficient slope (1 to 6 percent as determined by site conditions) to direct contact water to the appropriate collection, storage and treatment system.

(2)Windrow construction. All windrows shall be constructed perpendicular to slopes and not along slopes. The maximum composting process windrow or pile size and minimum composting process windrow or pile spacing shall match the capability and requirements of the equipment used at the facility. As pile height increases, windrows or piles should be monitored to minimize compaction.

(3)All-weather access. The composting facility shall have all-weather access roads. The facility shall be designed such that access to the composting facility shall be limited to authorized entrances, which shall be secured from public access when the facility is not in operation.

Okla. Admin. Code § 252:515-43-72

Adopted by Oklahoma Register, Volume 34, Issue 24, September 1, 2017, eff. 9/15/2017