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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION ORDER NO. WASTE DISCHARGE REQUIREMENTS FOR GROVER LANDSCAPE SERVICES MANTECA COMPOSTING FACILITY SAN JOAQUIN COUNTY The California Regional Water Quality Control Board,Central Valley Region, (hereafter Board) finds that: I Grover Landscape Services (hereafter Discharger)proposes to operate a green waste composting facility south of Manteca in San Joaquin County. Land for the 35-acre facility is ]eased from Spreckles Sugar Company. The facility is at 1273 Moffat Boulevard, near State Highways 120 and 99. The facility is in Section 3,T2S, R7E, B&M, as shown on Attachment A, which is incorporated herein and part of this Order. 2. The composting facility is not currently regulated by waste discharge requirements. The Discharger has submitted a Report of Composting Site Information,dated 4 August 1995. The Discharger proposes to produce finished compost materials that will be suitable for use for landscaping, nursery industries, and agriculture. -acre cqnsists of an incoming 3. The existin 5 g material receiving area, a g,,,3 composting facility grinding area, a temporary stockpile of ground material, active composting windrow areas, stockpiles of finished material, and two surface water runoff detention basins, as shown on Attachment B. The detention basins collect rainfall runoff from the c'ornposting areas and any runoff dust control operations. The Discharger proposes to construct access roads on six foot embankments around the perimeter of the operations area. The embankment 7 prevents runon and runoff of storm water. Each composting unit is graded to 3% using U compactedsoil as a base. Compost windrows will be 15 feet wide. 4. The types of waste proposed for composting consists of grass, wood chips, tree and brush trimmings, Christmas trees, root stock front nurseries, and sugar beet by-products such as beet tops,beet pieces, and beet pulp. No chemical amendments will be added to the composting windrows. 5. The agricultural byproducts and yard residues are nonhazardous, decomposable residuals from agricultural, commercial, and residential sources, that through composting are intended for recycling for use as a soil amendment. As such, they are,pursuant to Section 2511(f), exempt from Title 23, CCR, Sections 2510, et seq., (Chapter 15)providing requirements are established for their use and discharge of residual wastes from composting are disposed of pursuant to Section 25 11(h) of Chapter 15. 6. The estimated design capacity for the facility is 30,000 tons of material being processed or is curing in windrows. Discharger proposes to accept up to 500 tons per day of green waste, with the average daily throughput being 250-500 tons per day.