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/Ma__I>-28-02 08:53A P.02 .4 o` • -I M IR) I IR Sacramento Co -Composting Project . Nilsen Fauns Composting Pilot Project Description The purpose of the Sacramento Co-Compbsting Project is to evaluate the technical and economic feasibility of marketing a manure/green waste co -compost in the Sacramento area. A pilot project to assess the characteristics of the co -compost will he performed at the Nilsen Fauns composting. facility located at 17.200 Liberty Rd. in Galt. Approximately five hundred eubic'yards (500yd`) ofgreen waste will he'added to manure to produce a co - compost to be marketed by the City of Sacramento with a grant from the USEPA Region IX. The City of Sacramento will arrange for transportation of green waste and the finished compost to' and•from the Nilsen site beginning May, 13, 2002. The compostingproce;ss will he conducted in accordance with all applicable regulations lbr. pathogen reduction, heaver metals, and water quality protection. 'I'lie green waste will be processed through a•trommel screen to remove any -debris before heing mixed with equal parts dairy manure and farmed into 10' windrows.. Thewindrow will bd turned a. minimum of five (5) times during the 15 day active decomposition stage during Which time the pile temperature will be maintained at or above 55°C (131°F) to ensure adequate -pathogen reduction. The composted material will be left to cure for a minimum of 90 days. The total composting* process will last approximately 1.20 days. Miscellaneous trash and debris mixed -in with the great waste will be scrioened from the materials and properly disposed of. Nilsen farms will furnish additional trash containers from its Wilton turkey operation 1fneeded. The City of Sacramento will be responsible for ensuring. Wardous materials are not present in the green waste and if uny is subsequently found, will handle and Properly dispose of said waste. No biosolids or other.lturnan waste. will knowingly be added to the grcan'waste or manure feed stocks. In order to protect water quality, the composting process will only commence once sul'iYcient space has been made. available at the existing composting site (see attached map). Any runoff from the composting pad will drain into an adjacent dctcntion pond'. No further composting of green waste wi I1 be done at that site:without prior approval from the San Joaquin County Department of Fnvironinen'tal Hettithi and all other applicable . regulatory agencies. The City of Sacrammto will arrange sampling; and laboratory analysis of the finished co - compost. Quantitative assessment of the co -compost will be provided for the following fourteen parameters (14): pl1., soluble salt concentration, nutrient concentration (N -P -K, Ca, Mg), water holding capacity, bulk density (yd3), moisture content, organic matter content, particle size,. cation exchange capacity, humic acid content, organic carbon . content, inorganic nitrogen, ammonium tiitrate, and total nitrogen: The City of Sacramento, at.its discretion, may modify the parameters and/or also conduct compost maturity field tests using commercially available testing kits. (e.g., Solvita test). 121 Second Stmet.•Sitth floor San Frsncieco, California 9.Il0i Tel: Aly 977 0;18fl Fax: !15 �i711381 E-mail: su6ronff agron.or; Website: http://www,:augron.orA 5/28/2002 Flirted with say Bmad 6A.