Design Requirements: Monitoring Requirements:
The State Environmental Policy Act (SEPA) process was followed in siting the Compost Facility and a Determination of Non-Significance (DNS) was issued. The Washington State Department of Ecology (DOE) and Whitman County Health Department (local jurisdictional health department) reviewed and approved the plans and specifications for the facility. The following items were specified by the reviewing agencies: an asphalt (impervious) working surface, lined storm water retention pond(s) to contain a 25 year, 24 hour storm, use appropriate BMPs to prevent contaminated run-off generated from the site during construction and dike stabilization from impacting surface waters of the state, and containment dike around the entire facility. The dike was compacted and sized to contain an entire years precipitation at the site.
The finished compost material is tested annually for the following parameters:
Chlorophenoxy herbicide screen (SW 846 method 8150)
Organo-chlorine pesticide screen (SW 846 method 8081)
Annual reports to the Whitman County Health Department, and the Washington State Department of Ecology (DOE) are required. The reports include the following information: annual quantity in tons, or volume in cubic yards of compostables received, by type of feedstock; and quantity in tons or volume in cubic yards of finished compost produced, along with monitoring data.