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HomeMy WebLinkAboutOROVILLE GOLD LLC REPORT OF WASTE DISCHARGEReport of Waste Discharge (ROWD) Oroville Gold LLC Presented to: Butte County Public Health Environmental Health Division 202 Mira Loma Drive Oroville, CA 95965 (530) 538-7281 Presented by: SCS ENGINEERS 3843 Brickway Blvd, Suite 208 Santa Rosa, CA 95403 May 2009 File No. 01203196.01 Offices Nationwide www.scsengineers.com ENVIRONMENTAL HEALTH JUN. - 8 2009 202 MIRA LOMA DRIVE ORO.VILLE, CA Oroville Gold LIMITATIONS AND DISCLAIMER This report has been prepared on behalf of Oroville Gold LLC with specific application to the'proposed Oroville Gold LLC corriposting facility located in Oroville, California. The reports is prepared in accordance with the care and skill generally exercised by reputable professionals, under similar circumstances, in this or similar localities. No other warranty, either expressed or implied, is made as to the professional advice presented herein. Changes in Site use and conditions may occur due to variations in rainfall, temperature, water usage, or other factors.' Additional information that was not available to the consultant at the time of this report or changes that may have occurred on the Site or in the surrounding area may result in modification to the Site that would impact the summary presented herein. This report is not a legal opinion. We look forward to continuing to work with you on this project and trust this report provides the information you require at this time. If you have any questions or need additional information, please call Jane Gaskell at SCS Engineers on .(707) 546-9461. Lin a Taverner, Project Director Date Vice President Oroville California ROWD . OrovilleSCS ENGINEERS Table of Contents Limitations and Disclaimer..........................................:.:...................................................................................ii List of Attachments ....................... .. III Listof Acronyms and Abbreviations.........................................:....................................................................iv 1 Introduction.............................................................................................................................................. 1 General.............................................................:................................................................................. 1 FacilityOverview.......:....................................................................................................................... 1 Proposed Facility and Leachate Collection Basin Site Location.........................................I....... 1 Access.................................................................................................................:................................. 2 FacilityAreas..............................................................:..............................................:.........:.........:.... 2 . Topography .................... ............... ..................... :................................................................................. 2 Existing Surface Drainage Plans..................................................................................................... 3 ExistingDrainage Control................................................................................................................ 3 Type and Quantity of Material to Be Accepted......................................................................... 3 . Average and maximum quantity of individual types of feedstock ......................................... 4 Sources of individual types of waste received daily.................................................................. 4 2 Leachate Management................:................:.......................................................................................6 LeachateCharacterization............................................................................................................... 6 LeachateRecovery....:.......................................................................................................................7 LeachateCollection Basin................................................................................................................ 7 Geological Study and Geotechnical Oversight........................................................................... 8 Construction Quality Assurance (CQA) Activities......................................................................... 9 Annual Operation and Maintenance (O & M)...........................................................................10 3 Storm Water Discharges, Pollutants and Monitoring....................................................................13 PotentialPollutants..........................................................................................................................13 4 References.............................................................................................................................................15 5 Distribution.............................................................................................................................................16 LIST OF ATTACHMENTS Figure No. 1 Site Location Map 2 Site Plan 3 Zoning Map Appendices A Engineering Design B Report of Composting Site Information C Moisture and Carbon/Nitrogen Ratio Calculation Spreadsheet ' D Water Balance and Pond Operations Plan E USGS Soils Map for Oroville Gold Site F Odor Impact Management Plan ' Oroville iii ROWD California ' Oroville Gold .LIST OF ACRONYMS AND ABBREVIATIONS ' APNs = Assessor's Parcel Numbers. AS = aerated static piles ' Basin Leachate Collection'Basin BMPs Best Management Practices BOD = biological oxygen demand ' C:N — Carbon to Nitrogen Ratio CVRWQCB Central Valley .Regional Water Quality Control Board CCR Construction Completion Report ' cf n _ Cubic feet per minute cm/s Centimeters per second CN = Curve Number COD = Chemical Oxygen Demand .,. CQA = Construction Quality Assurance DI . = Drop Inlet gpm Gallons per minute ' HDPE = High Density Polyethylene O & M = Operations and. Maintenance OG Oroville Gold LLC OIMP Odor Impact Minimization Plan PR = Pathogen Reduction psi = Pounds per square inch RC = Relative Compaction ROWD . = Report of Waste Discharge SCS = SCS Engineers SC = specific conductance SWPPP = Storm Water Pollution Prevention Plan TOC = Total Organic Carbon TPH-d = Total Petroleum Hydrocarbons as Diesel TPH-O&G _ = Total Petroleum Hydrocarbons as Oil and Grease TSS = Total Suspended Solids ' USEPA = United States Environmental Protection Agency USGS = United States Geological Survey WDRs = . Waste Discharge Requirements WMU = Waste Management Unit Oroville iv ROWD ' California Oroville :Gold 1 INTRODUCTION General, This Report of Waste Discharge .(ROWD) has been prepared to describe the existing site conditions at the proposed Oroville Gold LLC (OG) compost facility and the. accompanying construction of a leachate collection basin (Appendix A). The proposed leachate collection basin (basin) has been designed to collect composting leachate generated from site operations and storm water that comes in contact with the facility's engineered compost pad and is intermixed with composting leachate. This ROWD presents existing site conditions and operations conducted at the facility, as well as procedures to prevent the release of leachate or impacted storm water to receiving waters. Information within this report is intended to comply with regulatory guidelines set forth in the relevant sections of Title 14 and Title 27 of the California'Code of Regulations. Facility Overview Adjacent to the proposed OG. composting facility, there are three waste management units (WMUs) undergoing a clean closure process. This process operates under the Waste Discharge Requirements specified in the Central Valley Regional Water Quality Control Board (CVRWQCB).Order No. R5-2007-0042. The WMUs consist of various types of wood waste including sawdust, chips, bark, cleanings from the log decks, and cover materials: As part of clean closure of.the landfill, Oroville Landfill Properties, Inca will be excavating the wood materials from the WMUs (WMU #1, WMU #2, and WMU #3). Some of this excavated material will be processed and trucked to off-site markets like biomass fuel. A portion of the. excavated materials from the WMUs will be delivered to the OG compost site where they will be blended with the appropriate nitrogen sources (which may include manure from poultry ranches and dairies; other agricultural material . including plant trimmings, culled fruit and green materials from residential, commercial and industrial sources; residential and commercial green material; and other material not yet identified from Oroville and the surrounding communities), and composted. The finished compost will be sold. to various horticultural, landscaping, and erosion control. markets. An overview of composting operations is described in the attached Report -of Composting Site Information, (Appendix B). Proposed Facility and Leachate Collection Basin Site. Location Oroville Gold LLC is'a proposed composting facility three miles south of the City of Oroville, Butte County, California. The site is located in the NE '/4 of the Palermo 7.5' Quadrangle at the juncture of Sections 29, 30, 31, and 32, Township 19 North and Range 4 East, Mount Diablo Base and Meridian (Figure' 1). The site is bound by Union Pacific and Southern Pacific railroad rights of way on the west, north, and east, and by O.phir Road on the south. Oroville 1 ROWD California Oroville Gold The project area is triangular in shape and is bordered by Ophir Road to the south; the ' Union Pacific railway line to the west; and the abandoned Southern Pacific railway right of way to the east. All of the subject parcels are currently zoned M-2 (Heavy Industrial) and the immediate environs are entirely industrial (Figure 3). There is a minimum ' distance'of 2,000 feet from the proposed composting area to the closest residential areas; and one mile to the nearest school. The proposed facility is currently comprised of Assessor's Parcel Numbers (APNs) 035- 470-012, 078-100-046, and 078-090-014. As WMU 1 and 2 are closed, composting operations will be expanded to occupy parcels 078-100-015 and 078-100-047 as well (Figure 2). Parcels are currently being adjusted to encompass the compost site; the ' compost site will be composed of three parcels with a total combined area of 63 acres. The latitude and longitude of the facility are 39.46905 and -121.5564, respectively. ' The proposed leachate collection basin would be located on -the western half of parcel 078-090-014, approximately 250 feet to the north of Ophir Road and 300'feet to the west of the Southern Pacific railway at the eastern edge of the property. Access Access to the site is from the south via�Ophir Road and north on the interior property road. faciIity.Areas The entire composting area will consist of a 63 -acre site. Initially, a 3 -acre pad with an impervious surface will be constructed for the processing and storage of compost and feedstocks. This will be expanded in the future to ultimately provide a maximum of 25 acres of impervious working surface. The stormwater/leachate collection system will be designed to accommodate the operation of the site under the full solid waste permit. The office, sanitary facilities, employee parking and record keeping will be located in the existing buildings located south of WMU-2 and west of the composting activities on 6.7 acres (Figure 2). Topography The Site is located on the border of the Great Valley and Sierra Nevada geomorphic provinces of California at an elevation of 200-300 feet above mean sea level. Northwest to northeast trending ridges and valleys characterize the terrain in the vicinity of the Site. This area is characterized by moderately to steeply sloping terrain along the eastern margin of the Sacramento Valley.. The Site is bisected by a northeast trending ridge which serves as a natural drainage divide. Oroville 2 ROWD California Oroville Gold Existing Surface Drainage Plans Drainage at the Site flows via unnamed natural drainages to the Feather River which is located approximately one (1) mile west of the Site. The Site topography has been modified by extensive placement of waste materials. Despite the presence of the fills, natural drainages that are tributaries of the Feather River still control surface water runoff in the area.. Existing Drainage Control A sump is situated on the former landfill's western border to the. northwest of the , operations buildings. It is a small, unlined pond with a capacity of approximately 10,000 gallons. Historically, this sump collected storm water run-off from a portion of the landfill facility, as well as wastewater from the hardboard plant, non -contact cooling water, boiler blow -down water, wash -down water from the plant buildings and pads, and , run-off from the log deck. This sump is fed by two subterranean pipes extending from the former landfill facility. Per. CVRWQCB Order No. 90-266, contact water (i.e., storm water run-off) from the ' WMUs is routed to unclassified surface impoundments for containment and evaporation. These impoundments were sized to contain all liquids generated during the winter period, ' plus the amount of precipitation from the 25 -year, 24-hour storm event and still maintain a minimum 2.0 -foot freeboard. Based on available information, it is known that Ponds 1, 5, and 7 still receive and sometimes contain run-off (Figure 2). Other containment ponds , were constructed at the southeast edge of the compost site to contain run-off which had come into contact with sawdust and wood chips placed nearby to act as mulch for a newly -planted eucalyptus grove. The lead agency for project review required by the California Environmental Quality Act (CEQA) is Butte County Planning Department. , Type and Quantity of Material to Be Accepted In order to allow for flexibility in sourcing feedstocks and produce the highest quality ' compost possible, Oroville Gold will accept all compostable materials except for those specifically prohibited by state and local enforcement agencies (e.g. biosolids from ' wastewater treatment plants or whole mammals). By permitting a wide breadth of feedstocks, the facility provides the community an effective means of diverting a majority of organic wastes and complying with the waste diversion requirements ' mandated in AB 939. The high quality compost produced from well -varied feedstocks provides an important local source of organic amendment and fertilizer for organic farms. Examples of the types -of feedstocks to be accepted include but are not limited to: Food ' materials from every possible source including restaurants, food processing plants, grocery stores, and institutions; fisheries and aquaculture materials; animal materials, ' Oroville 3 ROWD California ' Oroville Gold including materials from packing plants and slaughterhouses; paper and cardboard, including magazines.and waxed. cardboard; wood including source -separated construction and demolition wastes; liquid feedstocks such as lactose water, brewery water. wine lees; semi-liquid feedstocks such as pear material, olive sludge, and diatomaceous earth; greenwaste .from every possible source including fall street collections, landscaping and tree trimming crews, and municipal greenwastes; and, every possible source of agricultural wastes including dairy and poultry manures, fruit culls, prunings, and grape pomace.. Aver"age and maxi.m.urn quantity of individual ty.p.es of feedstock Assuming the maximum site utilization of 25 acres, with half of the material placed in pathogen -reduction windrows (PRWs) and the other half in aerated static piles (ASPS), the facility will be able to process approximately 290,000 cubic yards of material at any one time. The volume of incoming feedstocks may be reduced by a factor of.five by the end of the composting process. The composting process takes approximately 90 days to complete. 'Assuming steady state operation (5 cubic yards of material .in to. l cubic yard of material out), the Oroville .Gold compost facility will be able to intake approximately 1,160,000 cubic yards of material a year in order to produce 232,000 cubic yards of compost. Sample. calculations based on a compost'recipe using five of the most common feedstocks are presented below: All calculations are based on available on-site wood waste and a Carbon to Nitrogen Ratio (C:N) of 30:1 for composting. This basis provides a mass ratio of 1.1: "1: 1: 1:1 of wood waste: cattle manure: poultry manure: green waste: fruit waste (Appendix Q. This ratio may be adjusted depending on material availability. Estimated daily tonnage is calculated by dividing the tonnage needed to create 232,000 cubic yards of finished compost by 365 days. 7 Wood waste (532 lbs/cubic yd): 57.3 tons/day Cattle manure (1458 lbs/cubic yd): 51.8 tons/day Poultry manure (1400 lbs/cubic yd): 51.8 tons/day Green waste (550 lbs/cubic yd): 5 1. 8 tons/day Fruit waste (1 200 lbs/cubic yd): 51.8 tons/day Sources of individual types of waste received daily Probable sources for the five most common feedstocks modeled in (1) are presented below: Wood waste: Clean closure site adjacent to the compost facility. Cattle manure: Local ranches and dairies. Oro vi Ile 4: ROWD California Oro.ville Gold Poultry manure: Local poultry farms. Green waste: Tree -fruit pruning, landscape maintenance, curbside collections and transfer stations. Fruit waste: Local orchard or fruit processing waste. Processing Method Processed and/or excavated feedstock will be formed into windrows for approximately 15 days and then placed in aerated static piles. Water may be added at the beginning of the process and will be added periodically to adjust moisture content. In addition, higher nitrogen feedstocks like green material and/or manure may be added to adjust the carbon to nitrogen ratio.. Windrows will be turned initially with front-end loaders. The facility may ultimately purchase a specialized windrow turner if volumes/throughputs dictate. Material will undergo a pathogen reduction process [five turnings in 15 days during which temperatures are maintained at or above 131° F (55° Q., Residence time of a typical windrow will vary based on management intensity, time of year, weather, and other factors, but will be a minimum of 15 days. A composite sample will be analyzed for heavy metals, (arsenic, cadmium, chromium, copper, lead, mercury, nickel, selenium, and zinc), salmonella, and fecal coliform for every 5,000 cubic yards of compost produced. Finished Products End products sold by and anticipated to be sold by the facility include, but are not limited to: Compost, screened and unscreened, finished and unfinished, as is and blended with other materials, agricultural minerals and soil amendments such as lime, gypsum, or rock phosphate, or other materials such as soil, leachate, manure, and any other of the incoming materials, blended and unblended, processed and unprocessed. No product sold as finished unblended compost is shipped that does not meet the State pathogen and heavy metal standard. However the facility does sell other products that do not and are not required to meet those standards. For instance unfinished compost and raw manure does not meet the pathogen standard, and blends using traditional fertilizers will often by request exceed heavy metal limits. Samples of compost are taken every 5000 yards and analyzed for fecal coliform to assure that the Most Probable Number per gram of total solids is less than 1,000. (To date, no sample has exceeded this number.) Every 5000 yards samples are analyzed to assure metal concentrations do not exceed the following: Constituent Concentration (mg/kg) dry wt.- basis Arsenic 41 Cadmium 39 Chromium 1200 Oroville 5 ROWD California Oroville Gold Copper 1500 Lead : 300 Mercury 17 Nickel 420 Selenium 36 Zinc 2800 Public Access: The facility is not open to the public. Visitors are accompanied by facility personneLat all times. . 2 LEACHATE MANAGEMENT, Leachate Characterization Quantity . During or after a rainfall event, windrowed and piled compost and feedstocks, will absorb precipitation until they reach field capacity.. Once field capacity is reached, leachate could be created by the draining of excess moisture. As part of a conservative stormwater containment system, the delay caused by the absorption of precipitation 'and its subsequent release as leachate will not be considered to be a factor that reducesrunbff; the 25 -acre compost pad is modeled as an impermeable surface with instantaneous drainage. The runoff itself, however, will be modeled as leachate with an inherent biological oxygen demand (BOD). Average annual rainfall in the Oroville area is 28.67 inches a year (1957-2007), with the majority of precipitation occurring between November and April. The mean pan evaporation is 67.73 inches as measured at the Fort Chico station. The storm water/leachate basin will be designed -to contain all storm runoff that falls on the 25 -acre compost pad over the course of the season; at the. same time the basin will provide ample storage to help satisfy the large water demand of the composting operation (materials must be maintained at a minimum of 40%moisture for composting to occur). A sample water balance for pond operation is presented in Appendix D. Constituents Constituents of concern that may be found in leachate produced in composting operations are: high organic carbon availability represented as BOD; high levels of nitrogen compounds such as nitrate and ammonia; and in some cases, phosphorus. Oroville 6 ROWD California Or.oville Gold Leachate Recovery Grading will be used to control all drainage for the 25 -acre composting area. The concrete composting pad will be constructed with a grade of 3% to direct all leachate and stormwater drainage to a lined channel for collection in the leachate collection basin. The existing land contours and grade of 3% towards the site of the leachate collection basin ensure that leachate or stormwater will not run-off to areas other than the collection basin. Leachate Collection Basin A control basin will be designed for use as a leachate collection basin which will retain composting leachate mixed with storm water collected from the composting pad area. The detention basin will be located approximately 200 feet from the southeast corner of the 25 -acre composting site. The site for the proposed collection basin is unpaved and covered with a moderate growth of grasses and shrubs. The area disturbed for the installation of the basin is *estimated at approximately 115,000 square feet (ft) (2.6 acre) (Appendix A). The proposed basin will have an interior embankment height of 17 ft, a maximum water depth of 13.5 feet, retain approximately 3 5. 0 acre-feet of water or approximately 11,358,000 gallons and have a maximum. downstream height of 19 feet (toe to crest of slope). The collection basin bottom will be cut approximately 12 feet into the existing slope. The interior and exterior slopes of the proposed basin are designed at a slope of 2 ft horizontal to 1 ft vertical (2H:1 V) and the interior of the basin will be lined with two feet of low -permeable material compacted at 90%, as determined by a standard soil proctor to achieve the appropriate permeability (1x10"6 centimeters per second [cm/s]). A one -foot thick soil operations layer will also be placed above the 2 feet of low -permeable material to protect this layer from desiccation during dry periods and during annual basin maintenance activities. An outfall is included in the basin design for emergency conditions. However, since zero discharge is required by the CVRWQCB, the outfalls) will not be used to remove liquid from the basin, but is included as a backup measure so that the pond will not overflow over the top of the basin and compromise the impoundment structure. Operational measures will be required to be performed by OG to ensure that there will be substantial remaining capacity within the basin to be able to handle the onslaught of rain events without generating discharge. This will be accomplished by requiring OG to follow and abide by an operations plan (Appendix D) that will outline the operational strategy of the basin. Further, a contingency plan is included within the operations plan to remove an adequate volume, of liquid if rising waters within the basin become an issue. Please note the water level inside the basin is not expected to reach the freeboard height of the outfall since liquids will be pumped out of the basin as needed for Site operations, including composting material application of collected liquids. Oro.ville 7 ROWD California Oroville Gold As described above, the amount of area disturbed for the installation of the proposed ' collection basin is estimated at approximately 2.8 acres. Thus, coverage under the California General Permit for Storm Water Discharges Associated with Construction Activities (Construction General Permit) will be necessary for construction of the leachate collection basin. During construction, appropriate Best Management Practices (BMPs) will be employed around the collection basin work area to avoid impacts to water quality from any construction related activity. Basin Construction Details ' The following pertinent details for basin construction are presented to ensure that the collection basin is constructed and operated properly: Basin sizing and associated modeling, geological study information, geological oversight, construction quality_ assurance information, and an operations plan. . ' Basin and Conveyance Pipe Sizing The basin is sized to retain 35.0 acre-feet.or approximately 11,358,000 gallons of J compost pad runoff at full capacity and still maintain adequate freeboardl. Project Drawings for the collection basin are included in Appendix A. A water balance is included as Appendix E to justify the quantity of storm water and leachate produced onsite and includes operational activities that must be performed to ensure that the basin will maintain adequate capacity without discharging to receiving waters. Basin conveyance pipe sizing was. determined using HydroCAD® (Version 7.01) software for a 100 -year recurrence, 24 -hr storm event. Results of the hydraulic calculations included the peak flow from the above storm event andReak flow through. each collection pipe until the basin's outfall is reached. HydroCAD inputs included the - drainage area of approximately 25 acres and a Curve Number (CN) of 94. This CN represents a runoff surface that has high runoff potential and low infiltration and is . considered a conservative value for the design. Based on the model output, optimal diameter of conveyance piping was found to be 36 inches in. The hydrological results and summary cover for the modeling are included as part of Appendix D'of this report. Geological Study and Geotechnical Oversight The soils at the site are. classified by the United States Geological Survey (USGS) as. Oroville-Thompson flat complex, which is a mix of moderate to very deep, poorly, to moderately well drained soils that formed in alluvium derived from metamorphic and igneous rocks (Appendix E). 1 The amount of space between the pond surface water and the upper hinge point (berm roadway) of the basin. Oroville 8 ROWD ' California ` Oroville Gold . SCS ENGINEERS M SCS will have a licensed geotechnical firm provide additional geological assessment and testing results for the remainder of onsite soils. The results of geological testing will be submitted with the construction completion report (CCR) upon completion of the project. SCS will also provide a licensed geologist to provide oversight of the keyway for the basin's support berm to ensure structural stability of the basin. The geologist will confirm the depth of the keyway and provide recommendations and guidance to the contractor to improve the keyway, if needed. Changes to the keyway will be performed during construction activities and included within the final As -Built drawings as part of the CCR. The geologist will also identify any seepage issues within the entire excavation area, so that an appropriate subdrain finger system may be incorporated into the design and construction of the basin. There is only one know active fault in Butte County, the Cleveland.Hill fault. There are not enough geologic and seismic data available in Butte County to accurately estimate seismic or ground response at a particular site, therefore estimates are based upon data obtained from other localities in California. The anticipated maximum ground shaking intensity across all of Butte County is VII on the Modified Mercalli scale; however, the intensity could vary locally from VII to IX, depending on the type and location of the fault. Construction Quality Assurance (CQA) Activities To ensure that the contractor is building the basin according to the design and project specifications, SCS will provide CQA monitoring activities to document the completion of each design component during the course of the work. The CQA monitor will document the items completed as part of the work on a daily field report; further, the monitor will photograph the work during each phase of the construction. The CQA Supervisor, a licensed professional engineer, will review the CQA monitors reports and photos on a weekly basis to confirm that each portion of the work has been completed satisfactorily to the design and specifications. As part of the monitoring.activities, the CQA monitor will also provide oversight of geotechnical compaction testing, confirm testing results and soil proctors, and coordinate the geotechnical sub -consultant testing schedule during the course of the work per the contractor's direction. Details for compaction of each soil layer are provided below. Compaction Testing Compaction tests on foundation layers will be performed every 12 --inch lift of soil placement and soils will be compacted to 90 percent (%) relative compaction (RC) as determined by a nuclear density testing gauge using a standard soil proctor. Low - permeable soils will also be compacted every 12 -inch lift at a minimum of 90% RC (standard proctor) and at 3 to 6% above optimum moisture to ensure that the liner soils are adequately hydrated prior to placement of the 1 -foot operations soil layer. The Oroville 9 ROWD California broville Gold operations soil layer is included within the design to protect the liner materials during basin maintenance activities and will be compacted to a minimum of 85% RC using site - derived soils. Construction Certification Report (CCR) Following the completion of the work, the engineer will provide a signed and stamped CCR to document that the work has been completed to the design and project specifications. The report will include, but is not limited to, the following components: + Description of work, • Soil proctors, curves, and nuclear density testing locations and results, • Daily Field Reports, Photo Log, • As -Built Drawings, and • A Construction Certification Statement. Construction Scheduling The construction of the proposed leachate collection basin is scheduled for Spring/ Summer/Fall 2009. Annual Operation and Maintenance (O & M) The following information is presented to outline the maintenance activities that are to be conducted each year to ensure the integrity and proper operation of the ;compost pad, .its runoff collection. system and associated conveyance pipeline network, and the basin's low -permeable liner system and affiliated components. Maintenance activities shall be documented on a Maintenance Checklist with each entry signed and dated. Summer Operation. Guidelines Composting Pad Maintenance (i) Check integrity of concrete pad and make repairs as needed. (ii) Clear any debris from the perimeter collection system and ensure that it will drain properly to each drop inlet (DI). (iii) Inspect each DI for obstructions and remove as necessary. Clear any obstruction and clean out conveyance pipes if needed. Clean or replace BMPs near each DI as needed to ensure that liquid is ; able to pass through the DI. Oroville 10 ROWD California Oroville Gold Basin Maintenance (iv) Remove sedimentation from basin: Scrape sedimentation being careful not to remove too much of the operations layer and dispose of sediment through composting pathogen reduction windrows or - aerated static piles. Any liquid shall be removed and reused via composting piles. (v). Operations soil layer: Check thickness of soil operations layer, add additional material to maintain a 1 -foot thickness,. and compact by tracking.the surface with a piece of heavy equipment to achieve proper compaction over the entire containment area, including the base and sidewalls of the basin. (vi) HDPE layer (liner) maintenance: Inspect low -permeable layer to ensure that the surface is not damaged. Repair with appropriate materials as necessary. This work will be conducted in the dry season so the liner system can be repaired.. (vu), Inspect the outlet pipes, inlet pipe, volume'measuring device and rock within the basin'to ensure that all components are functional. Remove obstructions in inlet pipe as needed, by flushing with water after items 1, 2, and'3 are completed. (viii) Inspectthe basin's exterior slopes: Check exterior slopes for adequate vegetative covering to prevent any erosion. Reseed as needed to ensure that adequate vegetative growth is present on the 2:1 exterior slopes. The basin's exterior slopes shall be maintained so as not to have ponding areas. If ponding.is observed, add fill soils, compact with equipment, and reseed as necessary. (ix) Check outlets to ensure that there are no habitat dwellings or obstructions within the 2 main basin outlets. If any obstructions. are.found, remove them and dispose of materials through composting piles. Check the subdrain system pipes and clear them if build-up is found through visual inspection. Vector Control Conditions at the facility are not expected to be attractive to rats and mice. Flies, however, will need to be controlled. OG will attempt to incorporate materials attractive to flies as quickly, as possible on arrival at the site. On the occasions when this is not possible, the feedstock will be built into windrows before the flies have, time. to hatch. The composting of the feedstock ensures a total kill of any eggs. The incoming green material is likely to be the primary source of flies. When it arrives at the facility, it will contain flies and maggots at various stages of development. Control will be accomplished by the following methods: the incoming green material is ground as soon as practically possible after arrival which both kills the maggots and eggs, and also renders the material inhospitable. As an additional measure, fly traps are maintained throughout the facility to capture the live flies that arrive with the green material. Should other vector problems be identified, appropriate measures will be taken. Oroville 11 ROWD California Oroville Gold Odor Minimizbtion and Basin Aeration In order to reduce the potential of odors generated from site activities and basin leachate ' storage, the Odor Impact Minimization Plan (OIMP), included in this report as Appendix F, shall. be followed. To specifically, address basin odor issues, an appropriately, designed aeration system will be installed in the basin. The aerator will increase the available oxygen within the basin, stimulate naturally occurring aerobic microbes, and reduce harmful nutrient levels by oxidizing phosphate, ammonia and nitrite levels within the basin. The odorous compound of hydrogen sulfide will not be produced because anaerobic conditions will be eliminated; the aerator Will maintain predominantly aerobic conditions in the basin. Based upon the facility's leachate quality and percentage.of leachate to storm water runoff, the aerator has been sized for a 1,250 gallons per minute (gpm) circulation rate and is adequate for basins with surface areas up to 5 acres in size. Further, the aerator will provide approximately 1 cubic foot per minute (cfrn) of air to. a depth of 10 feet at a delivery pressure of 5 pounds per square inch (psi) and is sufficient to provide enough oxygen to reduce or eliminate odors from the basin. Winter Operation Guidelines . (a) The facility owner/operator needs to remove liquids from the basin throughout the year to ensure that the pond will not overflow into the. outlet pipes. This will be accomplished by removing significant quantities of liquid each month to make basin volume available for inclement weather during winter months. In no case shall the liquid not be removed during the course of each month during the year. Liquids removed fromthe pond shall be used in composting operations. The Pond Operations Plan (Appendix D) shows the quantity of liquids to be removed each month of every year when the basin is in operation. Basin leachate: levels observation:,A measuring device within the basin will have volume markers on it that indicate the volume of containment available in the basin to indicate when the owner/operator will have to remove leachate by pumping in order to leave adequate freeboard and prevent discharge from the basin. The owner/operator shall have a "trash pump" available onsite at all times x throughout each operational year of the basin and an adequate fuel supply to remove volume from the basin at any given time. (b) The owner/operator shall inspect the containment pond prior to each forecasted rain event, after a rain event that causes runoff from the compost pad, and at 24-hour intervals during extended rain events to Oroville 12 ROWD California l Oroville Gold verify that the basin has enough capacity available to handle the anticipated rain volume and maintain a minimum of 2 ft of freeboard at the inlets of the basin's outfall pipes. If during the aforementioned ' inspections it is determined the minimum freeboard cannot be maintained, the following contigency plan has been established: ' Contingency Plan The amount of water necessary to maintain a minimum of 2 ft of freeboaid would be , pumped from the containment pond and distributed on composting process piles. The moisture requirements of most feedstocks would create a constant demand for stored pond water throughout the year. ' 3 STORM WATER DISCHARGES, POLLUTANTS: AND MONITORING ' Potential Pollutants Significant Material That May Come in,Contact with Storm Water The materials at the facility that have the potential to come in contact with storm water are compost feedstocks, finished compost, amendments or additives stored on-site and mixed with finished compost for custom orders, and fugitive material on.the uncovered portions of the compost pad. Compost feedstocks consist of, but are not limited to, ' manures, animal bedding, agricultural materials, fruit waste,, and wood and municipal green materials. . Types of Pollutants ' YP - Total suspended solids , Small floatable debris q; Nutrients, including nitrogen and phosphorus ' Pathogens Oxygen demanding substances Diesel and hydraulic oil ' Oroville 1.3 ROWD Cal ifo,rnia ' . F Oroville GoldSCS ENGINEERS Monitoring of Storm Water Discharges Samples will be taken in order to encompass all areas where storm water flows.off the operational areas, except for incidental sheet flow locations. Therefore, they will be representative of the quality and quantity of.the facility's storm water run-off from storm events (pursuant to Section B.7 of the Industrial General Permit) and will be.strictly monitored and sampled as part of the monitoring program. Additional sampling locations may be designated for further evaluation of storm water discharge conditions, including water quality, in the event that sampling results identify significant quantities of pollutants. Monitoring locations may be designated, as well, to further evaluate discharge conditions and water quality. In the event that samples need to be collected from any additional sampling or monitoring points on a regular basis, the monitoring program will be revised. The facility's Industrial SWPPP will provide further descriptions of the sampling locations. The collected storm water samples will be analyzed for the following: pH, Total Suspended Solids (TSS), specific conductance (SC), Total Petroleum Hydrocarbons as Diesel (TPH-d), Total Petroleum Hydrocarbons as Oil and Grease (TPH-O&G), and Chemical Oxygen Demand (COD).according:to Section B.5.c.iii of the Industrial General Permit. TPH-O&G has been selected as a substitute for Total Organic Carbon (TOC), as allowed by the Industrial General Permit. Storm water samples will also be analyzed annually for TDS, chloride, alkalinity, nitrate -nitrogen, sulfate, calcium, magnesium, potassium, sodium, tannin and lignins, formaldehyde (United States Environmental Protection Agency (USEPA) Method 8315), pentachlorophenol (Canadian Pulp Method), 2,3,4,6-Tetrachlorophenol (Canadian Pulp Method), volatile organic compounds (USEPA Method 8260), dissolved inorganics, and semi:volatile organic compounds (CVRWQCB, 2007). If these pollutants are not detected in significant quantities after two consecutive sampling events, thefacility operator may eliminate the pollutant from future sample analysis (SWRCB, 1997). As a component of the facility's Industrial SWPPP, monthly visual observations of storm water discharges are conducted during the rainy season. Visual observation of non -storm water discharges are conducted on a quarterly. basis. Please refer to the facility's Industrial SWPPP for flu-ther description of the sampling procedures and analyses. Oroville 14 ROWD California 0 r 0 v i I I e Gold 4 REFERENCES ' Cornell Waste Management Institute 1996. ' http://compos*t.css. corhell. e.du/OnFarinHandbook/apa.taba l .html CVRWQCB, 2007. Order No. R5-2007-0042, Waste Discharge Requirements for ' Oroville Landfill Properties,' et al.; Rancho Cordova, California. May 2007. Seidenglanz, S. 2008a: Report of Composting Site Information. Oroville Gold LLC; ' Ophir Road,. Oroville, California. July 2008.: Seidenglanz, S. 20.08b. Storm Water Pollution Prevention Plan. Oroville Gold LLC, ' Ophir Road, Oroville; California.. July 2008. Seidenglanz, S. 2008c. Odor Impact Minimization Plan. Oroville Gold LLC; Ophir ' Road, Oroville, California. July 2008. SWRCB, 1997. State Water Resources Control Board Water Quality Order No: 97-03- , DWQ. National Pollutant Discharge Elimination. System (NPDES) General Permit No. CAS 000001 (General Permit). 0 r o v i I I e 15 ROWD California ' Oroville Gold 5 DISTRIBUTION �or%Flat Ther7nalrtorForebay�, North, Flcnlc Area- p� ASu&rlodPeak 550'c A LSONI r- y�;� , kX S I T 4. 03 a 1e I s utn ro - 4i an '; Palermo PALER Rb '�� 1 , '''� tiYl U 111 rw ,A,�' Source of Base Map: DEI_oRME 2000® SCS ENGINEERS S ITE L O C A T .ION MAP APPROX SCALE 3643 BRICRWAY BOULEVARD SUrrE 208 0 FrI MOLE SANTA ROSA. CA 95403 PH. (707) 646-9481 FAX (707) 644-5769 , OROVILLE GOLD LLC FIGURE PRa. No: 01203916.00 to ReY. 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'�.s+•w^ tr�irT�r n i' �] #, :.t r.T / +-• I ja, j 7r,�.Yrtt...-,.t•-.�- ...-�� w+'w'i..' s' F -.• -cr-•• 078-090 4 " O Fi H I R DQ,s_ ` 1 ' c r �' ,Ii!' ; t i • il�`,� ��[ .� ,`".rte �. t.r.'iF lip xi a a KtC: 1'ar°. '' i : p `. LEGEND 'I' • Y -1 1IS ''j" ^Tw. K.a• • "` . a� APPROXIMATE SITE PROPERTY BOUNDARY ' ' ¢`J)((.(A+ , APPROXIMATE PARCEL BOUNDARY SCALE400 ��' ,�' •`�'�' � "` •.,�`x"� ! r r' J j 1 — — APPROXIMATE LOCATION OF PROPOSED _ COMPOST AREA 400 OGRAPHIC 0Ali- 80i ,� - }� k M `"' '• - - - - - - - - APPROXIMATE AREA TO BE SURVEYED (TO BE WITHDRAWN FORM W.D.R.) PSITE FEET () PLAN BASE ON PARCEL MEASUREMENTS, NOT A PRODUCT OF SURREY 1_ 40017t. Ir CONCRETE PAD 2S' 4' .8' REGALE BASE SECTION A_ N.T.S. 1 DWNG GROUND - 3x 4' SECTION g N.T.S. 1 i. ISHED o GRADE j vAR1ES SECTION N.T.S. �41 ! ' /MVS I 1 1 • r 1 COMPOSTPAD (25.DACRES ULMMA7E) r PAD B O / (3.OACRESPHASE 1) d 11 INMIALPAO I1 APP 16,Y3.0ACREOf / I iBINCHO� / \ , LEACHATEPOND (0.4ACRE PHASE 1) ---- - \ ✓ Q LEGEND "" �= - •—• — — •— — —^- PERMITTED LANDFILL BOUNDARY - - - - - - - - - - • PROPOSED COMPOST AREA PROPOSED COMPOST STORAGE AND SALES 1 I . coa fCA iEGE POND- LEACHATEPOND A O ' (2.5ACRESUL77MA7E) g N� GRAPHIC SCALE 400: 0 400 ' IN FEET ) V = 400 Ft. • .. SOURCE' AERIAL FLOWN:4-2004: GLOBE XPLORER. � o a SHEET TITLE NO. REVISION DATE ,F „ ENVIRONMENTAL CONSULTANTS OROVILLE GOLD FACILITY SITE PLAN H ro 3117 RTE CIRCLE, SUITE 108 ' SAa MENTO, CA 95827 r . p 1 PH. (916) 361-1297 FAX (916) 361-1299 PROJECT TITLEPRU 01203196.00 ATV -1 OROMLLE LANDFILL PROPERTIES INC. OROMLLE, CALIFORNIA use er ATV an AAM Av* 3", AM I 4 60 MIL HDPE DESIGN GRADE LEACHATE .: CONVEYENCE DITCH + 2 2 . - i PREPARED SUBGRADE R ' SECTION. N.T.S. 1 r 250' X 450' - ' ` 60 MIL HDPE - 1 3-18".0' OVERFLOW PIPES 12" AGGREGATE BASE (AB) EMERGENCY OVERFLOW 1 2 10'-0" 1 13'-0° • ,PREPARED.SUBGRADE SECTION C N.T.S. _ - ' 1 . •, ;. . • Z > a ENVIRONMENTAL -CONSULTANTS SHEET TITLE N0. REVISION DATE. Hm �`� SECTION"DETAILS z j 3117 FITE CIRCLE SURE 108 SACRAMENTO,' CA 95827 .. - N p Qto co PN.'(916) 361-1297 FAX (916) 361-1299 P01203196.00 PROJECT TITLE - ATV _ � � SHT-2 OROVILLE LANDFILL PROPERTIES INC. osi ff" ATV er AAM APP. Wl.AAM OROVILLE, CALIFORNIA 4 Oroville Gold LLC Report of Composting Site Information Presented to: Butte County Public Health Environmental Health Division 202 Mira Loma Drive Oroville, CA 95965 (530) 538-7281 Presented by: SCS ENGINEERS 3843 Brickway Boulevard, Suite 208 Santa Rosa, CA (707) 546-9461 May 2009 File No. 01203196.01 Offices Nationwide www.scsengineers.com t O,oville.Gold Oroville G61.d LLC Report` of Com p-osting Site Information. ' (RCS1) 1 ' Presented for: Mr. S. Seidenglariz Oroville Gold LLC 4801 Feather. River Boulevard,: Bldg. 29 Oroville, CA 95965 tMr. M. Mileck c/o Oroville Gold LLC 4801 Feather,River.Boulevard, Bldg. 29 ' Oroville, CA 95965 Presented, by: ' SCS ENGINEERS, 3843 Brickway Boulevard, Suite 208 Santa Rosa, CA (707) 546-9461 1. May 2009 r t File No. 01203196.01 ,I Oroville G"old` LIMITATIONS AND DISCLAIMER This report hasbeen prepared on behalf of Oroville Gold LLC (OG) with specific-application'to the'proposed OG composting facility located in Oroville, California. This report is prepared .in ` accordance with the care and skill generally exercised by reputable professionals, under similar circumstances, in this or similar localities. 'No other warranty, either expressed or implied, is" _ made as to the professional advice presented herein. Changes in Site use and conditions may occur due to variations in rainfall; temperature, water usage, or other factors. Additional information that was not available to'the .consultant at the time of this report or changes that may have occurred on th&Site or in, the surrounding area may result in modification.to the Site that would impact the summary presented herein. This report is not a legal opinion. We look forward, to continuing to work with you on this projectand trust this report:provides:the' information you require at this time. If you have any questions or need additional information, please call Jane Gaskell at SCS Engineers (707) 546-9461. Jane Gaskell Date Project Manager Linda Taverner, Project Director Date. Vice President Oroville ii RC51 California Oroville Gold Table of Contents Section � � Page List of 0 � Lbt.of Acronyms and A66,evohons~-.__...—__,�—_._______''__—.'_�_—_-.'h/ � l � � Introduction -_.—__ _—_. l 2 ` She 2 .Facility Location Map _--__-__'__—......... ............................................................. 2 _ Fo6UtyLoyout3 Surrounding Land ' � 3 ` Quantity and Types ofAmteholsto be 3 � Average and maximum quondty'ofindividual types offeedstock --.................................. 4 Sources of individual types of waste received 6oi|y 4 . Hours ofOperodon........__—___,.—_-.______—__ 5 4 � � 5 Project /5 Cohng/5creenhng.......................................................... ........................................................................ 7 5 Contingency 7 !Equipment Failure ___.-7 Unusual Peak Loading _—. .___.--_..._..___-7 6 ' Materials Hon6|ingActivities ................................................................................................................ Q Confined Unloading ........................................................................................................ .......... .......... 8 Mowario| Preparation .......................................................................................................................... Q �. 8 Quench or Process Water ................................................................................................................ 8 ' 7 Composting Facility Controls ............................................ ..................................................................... 9 Vector Control; .........................n Noise q Dust Control ..... _..—_-___-__.__—___--_______.—__--__'�-,'��f � U � Health and Safety Program .................9 Sanitary Facilities ---.—'-'__'9 Water Supply ..___-g 9 Certification ____'-_--__—_--__.__-.__—____—__'___-_—_l0 � LIST OF ATTACHMENTS Figure No. l Site Location Map 2 Site Layout and Operations,Map O,pvi||e ' iii �RCS| [o|ifv,nio b. Oroville Gold LIST OF ACRONYMS AND ABBREVIATIONS ASPs = aerated staticP iles C:N = Carbon to Nitrogen Ratio OG _ Oroville Gold LLC OSHA = Occupational Safety and Health Administration 'PRWs = pathogen -reduction windrows RCSI Report of Compostingn Site Information' SCS — SCS Engineers WDRs = Waste Discharge'Requirements WMU = Waste Management Unit Oroville iv RCSI California Oroville Gold 1 , NTRODOCTION ' This Report of Composting Site Information (RCSI) describes the design and operation of the OG facility. This report describes the facility operation and provides enforcement agency notification. information. Facility Name: Oroville Gold LLC ' Facility Operator: Mr. Steven Seidenglanz, President Oroville Gold LLC 4801 Feather River Blvd., Building 29 Oroville, CA 95965 (530) 533-1221 (530) 518-8842,- Emergency Number (Steven Seidenglanz) ' (707) 489-4821 - Emergency Number (Martin Mileck) Land.Owner: Oroville Landfill Properties,. LP; Jack, M. Steebles LLC, ' Carol Ann Seidenglanz LLC, and Steven Conn Seidenglanz LLC. ' 4801 Feather River Blvd., Building 29 Oroville, CA 95965 ' Facility. Location: The site is located southeast of the City of Oroville, Butte County, California. The facility is located in the. NE '/4 of the Palermo 7.5' Quadrangle at the juncture of Sections 29, 30, 31, and 332, Township 19 North and Range 4 East, Mount Diablo Base and Meridian (Figure 1). The site is bound by Union Pacific and Southern Pacific railroad rights of way on the west, north, and east, and by Ophir Road on ' the south. Access to the site is from the south via Ophir Road and north on the interior property road (Figures 1 and 1 2). SWIS Number: 04 -AA -0009 0roviIIe 1 RCSI California Enforcement Agency:, Tim Snelling Butte County Health Department 202 Mira Loma Drive Oroville,- CA 95965 ' (530) 891-2727 Authorizing Eligibility: Title 14, Chapter 3.1, Article 1, Section 17857.1. Green ' Material Composting.Operations and Facilities. The OG facility's goal is to be a major factorin Butte and suiroundirig'counties' compliance with ' the State diversion mandate and with the support of the responsible County and State agencies. ' 2 SITE LOCATION_ Facility Location.Map ' The. general location of the composting facility is shown on Figure 1. The entire property and property operations are delineated on Figure 2. Facility Layout Description The composting processing area.will'be 5.5 acres. The composting pad itself will be 3.0 acres and constructed of concrete with the remaining 2.5 acres used for processing. The concrete pad will be e sloped to capturthe leachate, which will be conveyed to the leachate pond (Figure 2). This will be expanded to include approximately 63 acres after receipt of a full solid waste facility permit. The ' office, sanitary facilities, and employee parking will be located, in the existing buildings located south of WMU-2 and east of the composting activities on 6.7 acres. No composting or processing, will occur in this area. The composting . rocessin area is bound on the south northeast and east b. eucal tus trees and p gP g Y YP , the internal road to the north. The stormwater flow is southeast to an existing stor.mwater pond (Figure 2). Surrounding Land Use ' The former Louisiana Pacific Sawmill Class, 3 landfill is located to the immediate north'of the composting operation; .Southern Pacific Railroad, with vacant and light industrial land, to the east; Ophir Road and Norcal metal fabrication, a scrapyard, and other light industrial facilities to the ' south, and Union Pacific Railroad, light industrial and Marysville-Baggett Road located to the west. OroviIIe 2 RCSI California " Oroville Gold 3 QUANTITY AND TYPES OF MATERIALS TO BE ' ACCEPTED The daily operations at this facility will consist of receiving, processing and composting of compost ' feedstocks, receiving and processing and stockpiling of other materials, material grinding, turning active compost, materials screening, materials blending, and loading of materials for delivery. General Field office operations, minor laboratory operations, and minor equipment repair and ' maintenance will also take place on site. Incoming materials will include wood waste materials currently, landfilled in the nearby two ' former Louisiana Pacific Sawmill'Class 3 landfill Waste Management Units (Wws) #1, and #2 (Figure 2). WMU #4 contains wood ash that will also be incorporated into the composting process. Other materials brought into the facility will include manure from poultry'ranches and ' dairies; other agricultural material, including plant trimmings, culled fruit and green materials from residential, commercial" and industrial sources. These WMUs are being closed under.Waste Discharge Requirements/Monitoring & Reporting Program for Clean -Closure, Order No. R5- 2007-0042, adopted on May 4, 2007. In order to allow for flexibility in sourcing feedstocks and produce the highest -quality compost possible; Oroville Gold will accept all compostable materials, except for those specifically ' prohibited by state and local enforcement agencies.(e.g._ whole mammals). By permitting a wide. breadth of feedstocks, the facility provides the community with an effective means of diverting a - majority of organic wastes and complying with the waste diversion requirements mandated in ' AB 939. The high quality compost produced from well -varied feedstocks provides an important local source of organic amendment and fertilizer for organic farms. Examples of the other types of feedstocks to be accepted include but are not limited to: Food materials from every possible source including restaurants, food processing plants, grocery stores, and institutions; fisheries and aquaculture materials; animal materials, including materials ' from packing plants and slaughterhouses; paper and cardboard, including magazines and waxed cardboard; wood, including source -separated construction and demolition wastes; liquid feedstocks such as lactose water, brewery water, wine lees; semi-liquid feedstocks such as pear ' material, olive sludge, and diatomaceous earth; greenwaste from every possible source, including. fall street collections; landscaping and tree trimming crews, and municipal collections; and, every possible source of agricultural wastes, including dairy and poultry manures, culled fruit, prunings, and grape pomace. ' Oroville 3 RCSI California Oroville Gold Average and maximum quantity of individual types of feedstock Assuming the maximum. site utilization of 25 acres, with half of the material placed in pathogen - reduction windrows (PRWs) and the other half in aerated static piles (ASPS), the facility will be able to process approximately 290,000 cubic yards of material at any one time. The volume of incoming,feedstocks maybe reduced by a factor.of five, by the end of the composting:process. The composting process takes approximately 90 days to complete. Assuming steady state - . operation (5 cubic yards of material in to 1 cubic yard of material out), the OG compost facility ' will be able to intake approximately 1,160,000 cubic yards of material a year in order to produce. 232,000 cubic.yards of compost: Sample calculations based on a compost recipe using,,five of the, most common feedstocks are presented below. All. calculations are based on available on-site wood waste and a Carbon to Nitrogen Ratio (C:N) . of 30:1 for composting. This basis provides a mass ratio of 1. 1 :. 1: 1: 1: 1 of wood waste: cattle manure: poultry manure: green waste: fruit waste. This ratio may be adjusted depending on material availability. Estimated daily tonnage is calculated by dividing the tonnage needed to' 1 create 232,000 cubic yards of finished compost by 365 days: Wood waste (532 lbs/cubic-yd): 57.3 tons/day ,. Cattle manure (1458 lbs/cubic yd): 51.8 tons/day Poultry manure (1400 lbs/cubic yd): 51.8 tons/day Green waste (5501bs/cubic yd): 51.8 tons/day ' Fruit waste (1200 lbs/cubic yd): 51.8 tons/day This gives a total estimated daily tonnage of 264.5•. . ' Sources of individual types of waste received daily Y ' Probable sources for the five most common feedstocks modeled in (1) are presented below: • Wood waste: clean closure site adjacent to the compost facility • Cattle manure: local ranches and dairies • Poultry manure: local poultry. farms • Green waste: tree -fruit pruning; landscape maintenance; curbside collections and transfer stations •. Fruit waste: local orchard or fruit processing waste . Oroville 4 RCSI California` Oroville Gold HOURS OF OPERATION The compost facility will be operated from 8:00 a.m. until 5:00 p.m., six days per week with the exception of major holidays. 4 COMPOSTING FACILITY OPERATIONS PROJECT DESCRIPTON A portion of the excavated materials from the WWs will be delivered to the compost site where they will be blended with the appropriate nitrogen sources (which may include manure from poultry ranches and dairies; other agricultural material, including plant trimmings, culled fruit and green materials from residential, commercial and industrial sources; residential and commercial green material; and other material not yet identified from Oroville and the surrounding communities), and composted. The finished compost will be sold into various-, horticultural, landscaping, and erosion control markets. OG is proposing to initiate green material/wood waste composting operations and will be a turned windrow and aerated static pile composting facility: An overview of the Facility is provided in the following table: Facility Overview Perimeter Figure 2 Facility Operator Oroville Gold LLC Landowner Oroville Landfill Properties, LP; Jack M. Steebles LLC; Carol Ann Seidenglanz LLC, and Steven Conn Seidenglanz LLC Facility type Fully Permitted Composting Facility Feedstock . Green material and wood waste Size of Compost Facility Approximately 5.5 acres during notification and expanding to 63 acres with receipt of a full solid waste permit. Size of entire site Approximately 63 acres Environmental Health Controls California Code of Regulations, Title 14 (Com ostable Material Handling Regulations) Water Quality Controls Storm Water Pollution Prevention Plan Waste Discharge Requirements for the Landfill Central Valley Regional Water Quality Control Board (Order #R5-2005-0027) Air Quality Controls I Butte County Air Quality Management Board I Oroville California 5 RCSI OrovilleSCS ENGINEERS The following steps comprise the facility operations: Excavating and/or Receiving Compost feedstocks will include excavated wood waste materials from the three WMUs adjacent to the site, and off-site green *and agricultural material delivered to the site. The excavated wood materials will be transported to the composting operation using trucks. Incoming vehicles carrying feedstocks will be received and the site attendant will direct haulers to the receiving area. Load Checking The wood waste and wood ash recovery operation will be conducted at the WMUs. Excavated material from the WMUs will be separated and handled under the existing WDR:. The. wood waste and wood ash transported to Oroville Gold from the WMUs will be tested, prior to being accepted at Oroville Gold, in compliance with the WDR requirements. Loads of material received at the scalewill be visually checked based on volume. When off loaded, it will be checked again and any unacceptable material will be reloaded and removed from the facility. Grinding Where appropriate, incoming feedstocks will be processed using a large grinder, either a dedicated unit or a contract grinder. A front-end loader will be used to feed the material to the grinder. The front-end loader operator performs another visual load check prior to processing to ensure that foreign material that may damage any equipment is not loaded into the grinder. It is not known how much of the excavated material will require grinding, if any. Some of the excavated material may be processed using the grinder and sold directly as cogeneration fuel, landscaping material, playground cover, mulch, and/or erosion control materials. Composting Processed and/or excavated feedstock will be formed into windrows for approximately 15 days and then placed in aerated static piles. Water may be added at the beginning of the process and will be added periodically to adjust moisture content. In addition, higher nitrogen feedstocks like green material and/or manure may be added to adjust the carbon to nitrogen ratio. Windrows will be turned initially with front-end loaders. The facility may ultimately purchase a specialized windrow turner if volumes/throughputs dictate. Material will undergo a pathogen reduction process [five turnings in 15 days during which temperatures are maintained at or above 131° F (550 Q. Residence time of a typical windrow will vary based on management intensity, time of year, weather, and other factors, but will be a minimum of 15 days. A composite. sample will be analyzed for heavy metals, (arsenic, cadmium, chromium, copper, lead, mercury, nickel; selenium, and zinc), salmonella, and fecal coliform for every 5,000 cubic yards of compost produced. Oroville 6 RCSI California Oroville Gold Curing/Screening Finished compost may be cured in a discrete curing.pile, or using other accepted techniques. Some compost may be screened according to market demand. Screened compost may stored on-site: - Load out. Finished.compost will be loaded. into trucks for delivery: Front-end loaders will.be used -to load transfer trailers or smaller trucks, which deliver the material to the purchasers." Security The facility is staffed at. all times during operating hours and the gates are locked during non operating hours. Recordkeeping Daily incoming volume records for all incoming externally -sourced materials and,excavated woodwaste will be maintained by the staff. Records of pathogen reduction and heavy metals " content will also be. maintained at the facility administration office. 'The site will keep a Log of Special Occurrences, which will be used to"log any unusual circumstances or activities at the compost site. 5 CONTINGENCY PLANS Equipment Failure The facility will initiate operations using common material handling equipment (primarily front- end loaders), which is easily replaced by rental equipment in case of equipment failure:.Initially, grinding will occur using contract grinding services. Once the facility purchases a full-time grinder, contract -grinding services will be used in the case of equipment failure. Unusual Peak Loading In an unusual peak -loading situation (of.delivered green materials), the facility could utilize additional contract grinding services for processing capacity. Oroville 7 RCSI California Oro vilfe.GoId 6 MATERIALS HANDLING ACTIVITIES Confined. Unloading . There are no confined unloading activities' at the facility. Delivery vehicles are directed to appropriate areas by facility personnel. Unloading activities. of incoming. materials takes place at or near processing locations. Unloading of additive and other materials may occur at storage locations. The high moisture content of most incoming material prevents windblown distribution. Water spray equipment is available at or near unloading areas for dust 'and particulate suppression as needed during dry material unloading. Such materials are covered as required. Material Preparation Some materials require grinding prior to incorporation into the windrows, while some do not. Material is ground as necessary. Other materials, specifically lime, require drying before stockpiling. This is accomplished by spreading the material out in order to accelerate drying.. Some curbside green waste arrives in an anaerobic state. This material is ground as soon as possible with more carbonaceous material in order to eliminate the anaerobic conditions. Housekeeping .' Materials necessary for the daily operations of thefacility are stored in a neat and orderly fashion. Other materials and supplies are either covered or placed in designated areas dedicated to storage or stockpiling. Waste materials that need to be removed from the site are stored until a sufficient tquantity is accumulated: for economic hauling. Regularly scheduled employee training emphasizes the importance of good housekeeping practices, particularly as it relates to health, safety and environmental" quality. ' Quench or Process Water ' Water requirements vary widely as a function of ambient conditions -and the moisture content of incoming feedstocks. Maximum water demand may be as much as 50,000 gallons per day when the facility is operating at full capacity. This includes sufficient water to maintain adequate moisture ' levels in the active compost and water for dust suppression. The facility will receive its water from: a) The Feather River Water District. ' b) Oroville Gold will drill a new supply for the composting facility in the future. C) Liquids, if present during the landfill recovery operation of the Oroville Landfill Properties, Inc. WMUs will be used on the compost after meeting. the Oroville Landfill Properties, LP WDR testing requirements. ' Oroville 8 RCSI California O,rovill 6 Gold 7COMPOSTING FACILITY CONTROLS ■ Vector Control Conditions at the facility are not attractive to rats and mice, so they are not anticipate&to be a ' problem. Receipt of fresh manure is not a source of flies unless it remains unprocessed for more than a week, the gestation period for' flies. Any manure received at the facility will be processed as quickly as possible on arrival at the site. The composting of the manure ensures a total kill of the eggs Noise Control ' Equipment noise levels at the facility do not exceed commercially accepted practice. The. site is buffered by the surrounding trees, railroad and roadways from the other commercial and industrial ' operations in the vicinity of the facility. Facility personnel are provided with hearing protection . equipment pursuant to State law and Occupational Safety and Health -Administration (OSHA) regulations: ' Dust Control A water truck is used to wet unpavedportions of the access road and high traffic areas, at'the site as ' needed. Water and equipment for dust suppression is available at grinding, screening and dry material unloading operations area. . 1. 8 HEALTH AND SAFETY PROGRAM ' Sanitary Facilities Permanent sanitary facilities are located in the existing building that will be used as the OG office (Figure 2) Leased portable toilets will be provided near work areas as needed. 1t Wa er Supply Portable water is supplied by Feather River Water Corporation. A supply well will be drilled in the ' future as an additional source of water. ' Orovill'e; California 1 0 RCSI r t Oregon] Gul lit, Thermalrto;orebay,North;Plcmc,Prea pS�garlo Peak S50"9iEwellnr`aI, U a„ pp rid —,NELSON4 s ITE _ �- � •. ', u�1._, r f- le•J r III , �' F - •. I ..J+ � - — ' I A�i1€a70 f , I;}' and ii�l Il 4 •O - r � '' cc J PALE M R a Pal imp) �� nnh >tYr �9 , JI gs Source of Base Map: DELoRME 20000 �. I SITE LOCATION MAP SPR°SCALE C S ENGINEERS 38438RICNWAY BOULEVARD SUITE 208 0 F IMILE SAMA ROSk CA 95603 W. (70T) 545-9461 FAX (707) 544-5789 OROVILLE GOLD LLC Fi°uRe - • Paw. NO: I YARER DY:ORPHIR ROAD 01203916.00 3196SiteLocMap OROVILLE, CALIFORNIA DAYS: 7I17IO8 CREATED DY APP. DY: LST ' JM I f , • r r t Oregon] Gul lit, Thermalrto;orebay,North;Plcmc,Prea pS�garlo Peak S50"9iEwellnr`aI, U a„ pp rid —,NELSON4 s ITE _ �- � •. ', u�1._, r f- le•J r III , �' F - •. I ..J+ � - — ' I A�i1€a70 f , I;}' and ii�l Il 4 •O - r � '' cc J PALE M R a Pal imp) �� nnh >tYr �9 , JI gs Source of Base Map: DELoRME 20000 �. I SITE LOCATION MAP SPR°SCALE C S ENGINEERS 38438RICNWAY BOULEVARD SUITE 208 0 F IMILE SAMA ROSk CA 95603 W. (70T) 545-9461 FAX (707) 544-5789 OROVILLE GOLD LLC Fi°uRe - • Paw. NO: I YARER DY:ORPHIR ROAD 01203916.00 3196SiteLocMap OROVILLE, CALIFORNIA DAYS: 7I17IO8 CREATED DY APP. DY: LST ' JM I C,.; hf �n.� f;.r k x Y +' a ;eF r.� r i mfr"• r , P` �r Y ti ,rA...1 � � ° r 'w� � k r4 T''°'„ j rf p [ �55 "� vrW1)r//4 � S,i'! ` • / t l -lj �i lit 4!: ,." . ~ f(�. 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C• J / � �" I �` \ + .•,-.,..r`r5.j �.� �..;•'M .r ♦ ��� e APN - 078-100-015 oi *^ ,,. +.+,#�`%' A na„j,yy _�i 1' 7�,�• +�y-MS�.? \�, w-. �, J '���.5""" ,., v.f ,'rulutono Y5 APN - / 078-090-011 ;: °�`"�• - + »rrr`�S IN ' /•�"t'.l•r ` / 'f ! +!Wo., II': } .. �a —'+�+ -' ,- . �/M U-2';,� :% Fw ' / :?• r ' 9� C�.:. h 4 P + k * 74 / •~ 1r APN - 078100-046,,' r 1 t `� �S� �- _ ' / �' t•r ,. ' q. xAPIV 078=100-047oP4sG �iv�''� =wv..J«r ` PROPOSED :;7ell COMPOST ARE,. COMPOST OFFICE-,-�; J , t5.5 ACRRES) r ja �i • •� i �T� ' �,k. ,APPROXIMATE: ,„ �� »-r.,s y. r CL " gLOCATION OF _-•"w"�S?�. �, 3 ' °: t ! - 3P+ f ►�� r r LEACHATE^POND. n g` ` y jj l i r APN'- 035-,470-012 a1 .w"ys•t. {.'+. �t, i'+ �': ��`y'� � � i4^� ..+�' � •.�.- - {APN;,•07$.090,014y 1, "a. ,{`}•x�'" �/' n ? Y '•M � �!,,•,, ;� sr / P/COMPROOSTPOSEb�/ 1,►r• `�a,'_'�-s{SI'TEtT�a�kh+p. x�"' "'.'r`'a�' �+- `�� �rJ<a' c, , a�<r� ;�"� !I � li� LSTOFAGE `-/ AND SALES AREA . �t S' ti -'•E. y � yD "Y'�.o.�i� "+� eF:x xr ". �+ 1 , / t,i- +v�,r dl_�Y.g ..w.-w;..Tiv' �..,..^•-•�ei..t-.w.1 ♦ 't+" i s j }I _ 07,8,090014 -ORp ROAD;+ lvr. a.., yam' , �,°� , � - +r�'r * � � ..� v /i j'.�i 'fir "�t Y5�` `t . j:} • � �-,.• � • �. �� rf 'o 14A %i.-., - .9.� I. r {. s � � a _G ,tY.. +•ti'`°"Y : - moi,. A - _ - :+5 .d- �, � �' +' 1r r�', i y C�E��� ,fq � � if r � � R �• �'�, r '��'� � :• r '`� d • r� �S jjr� t r y'�1R 'f R�: I!N# � -.k'I :� f �, ,� '�r LEGEND APPROXIMATE SITE PROPERTY BOUNDARY ZNf �, rr. r xi APPROXIMATE PARCEL BOUNDARY It APPROXIMATE LOCATION OF PROPOSED COMPOST AREA GRAPHIC SCALE 400 0 400 800 x i — — — — — — — — APPROXIMATE AREA TO BE SURVEYED (TO BE WITHDRAWN FORM W.D.R.) IN FEET SITE PLAN BASE ON PARCEL MEASUREMENTS, NOT A PRODUCT OF SURVEY. ( ) I" = 40OFt. t t , Appendix C - Moisture And Carbon/Nitrogen Ratio Calculation Spreadsheet Developed by Tom Richard, Department of Agricultural,and Biological Engineering, Cornell University. . To use this spreadsheet, insert data in the first table`for your ingredients (up to -four ingredients) .• + 'The spreadsheet then calculates the mixture moisture content and C/N ratio. Alternatively, the spreadsheet will calculate the proper proportions for moistuie'and/or C/N goals (see below): _ 1 • For, further explanations of the formulas embedded in this worksheet; see the Science and Engineering section of the Cornell Composting web site: ' h"://www 6ill:com6li. du/dept/comp'stL! NOTE - do not copy and paste the - a t, hput areas are shaded blue or purple. Formu_ la results are yin red 661 s. ? ligredient . 0110isture • %arbon ;, °461itrogen, Mass (lbs:). . - wood waste 39.0. , 57.7 0.1 '4.18E47 t- $ caftle manure'. 81.0. 45.6 � 2.4 MOW green was ^80A 57.8 3.4 MOW ' poultry manure ; 37.0 37.8," 2.7 3.79E@7 ' fruit waste ,- 80.0- 56.0 1.4 2.50E07 4.; Calculated mixture moisture content: 59.9 (masses as, specified) ti Calculated mixture C/N ratio: 30.3 (masses as specified) . tons/day Bulk density volume -(mass/316 Date: 4/27/2009 1 Project No.: -1203196.00 ' Project Name: Oroville Landfill Subject: Water Balance Performed by: A.' Violenta/M. Erickson 1 Reviewed by: A. McCready, PE ' Accepted by: A. McCready, PE Basin �: _, Compost Pad ' Vout-Vet(basin)+Vrain on):=Vin(Rain)-Vabs(ASPs-Vabs(Windrows)-Vabs(Green Waste) Year Month Monthly Rainfall (in.) Monthly Rainfall (ft) Basin Composting Capacity Area (ft^3) (ft -2) Vin(Rain) (ft^3) Absorb Evapo- Potential Capacity Trans Runoff ' (Basin) (ft^3) (ft^3) (ft^3) Precip On Cummul. Basin Pond Volume (ft^3) (ft^3) Available Pond. Volume MA 3) Conclusion. 1 0 0 424,000 0 0 1,524,600 Pond Empty Nov 3.74 0.312 1,524,600 1,089,000 339,405 421,900 299,600 0 339,405 - 0 1;524,600 Pond Empty Dec 4.17 0.348 1,524,600 1,089,000 378,428 420,220 149,800. 0 378,428 186,835 ' 1,337,765 Jan 5.52 0.460' 1,524,600 1,089,000 1,036,365 418,876 107,000 0 .500,940 1,198,264 • 326,336 Feb 5.2 0.433 1,524,600 1,089,000 471,900 417,801 385,200 0 471,900 1,339,063 185,537 Mar 4.7 0.392 1,524,600 1,089,060 -426,525- 416,941 426,525 0 426,525 1,348,648 175,952 Apr 1.84 0.153 1,524,600 1,089,000 166,980 416,253. 166,980 0 166,980 1,099,375 425,225 May 0.99 0.083 1,524,600. 1,089,000 89,843 415,702 89,843 0 89,843 773;515 751,085 Jun 0.31 0.026 1,524,600 1,089,000 28,133 415,262 28,133 0 28,133 0 1,524,600 Pond Empty } Jul 0.07 0.006: - 1524,600_ _1;089,000._ _16,353 , - 414,909 , .., 6;353, 0_ ,,_ 6,353. _ _ .0 1,52.4,600 Pond. Empty Aug 0.16 0.013 1,524,600 .1,089,000 14,520 414,627 14,520 0 14,520 0 1,524,600 Pond Empty Sep 0.46 0.038 1,524,660'. 1,089,000 41,745 " . 414,402 41,745 - 0, 41,745 0' 1,524,600 Pond Empty . Oct 1.59 0.133 .. 1,524,600 1,089,000 144,293 414,222 144,293 0 144,293 0 1,524,600 Pond Empty 2 Nov 3.74 0.312 1,524,600 1,089,000 339,405 414,077 299,600 0- 339,405 :' 0 1,524,600 Pond Empty Dec 4.17 0.348 1,524,600. 1,089,000 378,428 413,962 149800- 0 378;428 193,093 1,331;507 . . Jan 5.52 0.460 1,524,600 1,089,000 '500,940 413,869 -107,000 0 ' 500,940 674,104 850,496 . Feb .5.2 . 0.433: 1,524,600 1,089,000 471,900 413,796 385;200 0 "471,900 818,908 705,692 Mar 4.7 0.392. 1,524,600 1,089,000 426,525 413,736 426,525 0 426,525 831,697 692,903 Apr 1:84 0.153 1,524,600 1,089,000 166,980 413,689 166,980 • 0 166,980 584,988 939,612 May 0.99 0.083 1,524,600 1,089,000 89,843 413,651 89,843. 0 89,843 261,178 1,263,422 Jun 0.31 0.026 1;524,600 1,089,000 28,133 413,621. 28,133 0 28,133 '0 1,524;600 Pond Empty Jul 0.07 0.006: 1,524,600' 1,089,000 6,353 413,597 6,353 0 6,353 -0 1,524,600 Pond Empty Aug 0.16 0.013 1,524,600 1,089,000 14;520 413,577 141520 0 14,520 0 1,524,600 Pond Empty Sep 0.46 0.038 - 1,524,600. 1,089,000 41,145 413,562', 41,745 0 41,745 - -0 1,524,600 Pond Empty Oct 1.59 - 0.133 1,524,600 1,089,000 144,293 413,550 .144,293 0 144,293..... 0 1,524,6001 Pond Empty Notes & Assumptions: k .1) Basin. Volume= 11,358,000 gal : 1,524,600 ft^3 , 2) Volume of process piles will :achieve 50% saturation Conservative Estimate 3) Porosity of material is 0.35 Other Notables: r Moisture in piles decreases at 2%/day; therefore, 30 days equals 60% moisture reduction ! Moisture of inplace material is 20% ASPs optimum moisture is; 65% During Summer ASPs optimum moisture is 50% During Winter - Every three days windrows are turned and moisture decreases to 20% Subcat Reach ,on , , Li ' OrovilleYear Type 1124-hr 100-Year Rainfal1=5.90" Prepared by scS Engineers Page 3 HydeoCAD® 8.00 s/n 003976 © 2006 HydroCAD Software Solutions LLC 4/29/2009 ' Time span=2.00-48.00 hrs, dt=0.10 hrs, 461 points Runoff by SCS TR-20 method, UH=SCS ' Reach. routing by,Stor-Ind+Trans method - Pond routing by.Stor-Ind method Subcatchment a: Compost hif Area Runoff Area=12.500 ac Runoff Depth=5.20" Tc=60.0 min CN=94 Runoff=32.99 cfs 5.414 of ' Subcatchment S: (new Subcat) Runoff Area=12.500 ac Runoff. Depth=5.20". Tc=72.0 min CN=94 Runoff=28.95 cfs 5.414 of Reach R: ®in Ine Avg. Depth=1:36' Max Vel=5.95 fps Inflow=32.99 cfs 5.414 of n=0.013 L=615.3' S=0.0049 'P Capacity=42.94 cfs Outflow-: 32.72 cfs 5.414 of ' Reach 11: Ehin lne Avg. Depth=1.13' Max Vel=7.57 fps. Inflow=28.95 cfs 5.414 of n=0.013 L=198.3' S=0.0101 T Capacity=61..76 cfs . Outflow=28.91 cfs 5.4:14 of ' Pond B: Otention Pond Peak Elev=230.39' Storage.=10.828 of Inflow=61:19 cfs 10.828 of Outflow=0.00. cfs 0.000 of Total Runoff Area = Shc Runoff Volume = Of Average Runoff iipth = Wervious,Aeea = 3c Mpervious Area= is Oroville_Tear Type 1124 -hr 100 -Year Rainfall=5.90" Prepared by SCS Engineers Page 4. HydroCAD® 8.00 s/n 003976 © 2006 HydroCAD Software Solutions LLC 4/29/2009 Subcatchment S: Compost Mf Area Runoff = 32.99 cfs"@ -12.55 hrs, Volume 5.414.af, Depth= 5.20" 'Runoff by SCS TR -20 method, UH=SCS, Time Span= 2.00-48.00 hrs; dt= 0.10 hrs Type II 24 -hr 100 -Year Rainfall=5.90" Area (ac) CN Description . 12.500 94 Urban commercial, 85% imp, HSG •C 1.875 Pervious Area 10.625 Impervious Area Tc Length, Slope Velocity Capacity . Description (min). '(feet) (ft/ft) (ft/sec) (cfs) 60.0 Dect Entry,Compost Area " Subcatchment $: Compost Mf Area Wrograph ---r--r--r--r--r---r--r--r--r--r--r--r--r--r--r--r--r.--r--r'--r--`1---r-- 36•' I I - - I I I - 11 I I I - I I I I 1 I I ❑ Kurloff -34 --' --i -- 32.99-Cf$o--i --I---r --I --; --i --r --r--I---r--1 -,-r --r--' --I --r--.. --F---f--- --- ---- F---I--TF---~--I---1---I-- 1--`I--- t---�--I --1--I---f--- - 32 ' '--�--�- , --, - ,----�-------TYpe Ir�At�ear-� - ----- I 30__L__L__L__L_ . I 1 I I 1 I 1 I 1 I I I I I I z6 1'RAY.n.bff_�An"ea-�.c�------�--- zs -'---'--'---'- i -'---'------'---' --'---'---' 24 ------- - - -'-- - --- .- Funoff-Volumef - - - 1 I I I I I I I I 22 � 1 I , I I 1 1 I I I I --__-- -- I 20 •� - 1 4'1 -rI Ir I I I I Runoff @pth=1M-JI ,r-- v--r-7'r--r---r--'F---r--Ir--r- -r -r---r--r r`- 18 I 1 I I 1 I I I I i I I I ' 3 --r--r--r--r-r--r--r--r--r--r--r--r--r--r--r--r ' iP 16 ' ---r--r--r--r r--r--.r--r--�--r--r--r--r--r--r--r--r--r--r--r--r-- .' 1 14----------------------------�---CN=�I F-- 12 ' 10 I- 8 - --L-=L --L --L --'---'---� --'---� --'---'---'---'---'---'---L--'---'---'---'--- I 6 '..--'--- -- -- - -- --- --'---'---I---'---'---'---' --'------'---'---'---'---'--- 1 I 1 I 1 I I I I I I I 1 I I I L I I I 4 --� --I --� ' --� --'---'---'---'- 1---'--`'---'---'---'---`'---'---'---'---'--- 'Z 0 2 4 6 8. 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46- 48 Time (hours) OrovilleDrear Type 11 24 -hr 100 -Year Rainfall=5.90" Prepared by SCS Engineers Page 5 _ HydroCAD® 8.00 s/n 003976 © 2006 Hydro -CAD Software Solutions LLC 4/29/2009 Subcatchment S: (new Subcat) . Runoff = 28:95 cfs @ 12.70 firs, Volume= 5.414 af, Depth= 5.20'. Runoff by SCS TR -20 method, UH=SCS, Time Span= 2.00-48.00 hrs, dt= 0.10 hrs Type II 24 -hr 100 -Year Rainfall=5.90 Area. (ac) CN Descriotion 12.500 94 Urban commercial; 85% imp, HSG C 1.875 Pervious Area 10.625 Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 72.0 Dect Entry,Cempost Area. Subcatchment S: (new Subcat) Oirograph L- _ L _ _ IL _ _ IL _ _ IL _ _ IL _ _ IL i I 1� � I I � I 1 I I I I I 1 I I I 1 32 I 1 1 ❑Runoff --r--r-- 30 ---I---1"---I-"-- - �----I-'--I-'--F---�--1--�-I---I- I---1-- ' --1_ .I 26 ; - ------ -- _Type lir; Vear------ 26 -- F--r--r--r--r--r-- -- ----r--�- r-- -Rainfall- M.---�-- 24 _ _ L L _ _ L _ _ L _ _ L _ _ L L L L I _ _ I I I I I I 1 I RUn-6ff iArea=�c' I I 22 --r--r--r ---r -'�.-r--r--I---r--r--r--r--�---r--'------r--r.-,r --r--r--r-- 20 - - --' _-' 1 I I I l Ur�offyoulUme-9df-I -- -1--- ------�-- --�-- --�-- OWFEW -. 16 16 • I --- 1---r--r--r--1---1---r--r-----I--_--_r. ,r--Tc=-'---r--r-- r --r--1---1-- 14 ' � 1 1 I I I I I I I 1 L I___ 12 --r--r--r--r r--r--r--r- -r--r--r--r--r--r- - r--r--r--r- r r-- 10 1 I I I 1 I I 1 I I 1 I I I I I I ! I I . _ _ - _ _ _ _ _ - _ _ 4 i 6-i_ __II_ -_1- _ I I I 6 " --- r - - r - - --.r--r--r--r--r--r--r--r--r--r--r--r--r--r--I---r-- 4 I I 1 I I I 1 I I I I I I- I I I II I I 1 _-L _ _L __1__ _I_ -_1_--I_ _ L- -L __L __L__L 1 1 I I I I I I 1 I 1 1 1 I 1 2 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time (hours) '. OrovilleVear Type.11 24-hr 100 Year Rainfall 5.90- . Prepared by: scs EngineersG , Page 6 ° r HydroCAD® 8.00 s/n 003976 © 2006 HydroCAD Software Solutions CLC'­' '.t'_ 4/29/2009 ' .. Reach2 ®in lne yT 4 • Inflow'Area,=*` •12' -• . • .. ' .• • - � ti t .��. .500 ac; Inflow Depth 5-.20" for ,1'00 Year. event , ' - Inflow , • _ 32:99 cfs @ 12.55 Firs `Volume= 6�414'af Outflow, - 32.72 cfs @ ''12.60 hrs, Volume=,­ 5.414af, Atten- 1%o Lag= 3,4 min ; } Routing by Stor-Ind+Trans method, Time Span= 2-00-48 bO:hrs dt= 0.10 hr's ' Mai. Velocity= 5.95 fps;: Min. Travel Time 1`.7 min- AV' in" Avg. Velocity = 2.43 fps,` Avg. Travel Time= 4:2 min l; , - Peak Storage- 3;401 cf @'12 57Ahrs, Average Depth at Peak Storage._ 1'36' ' . Defined. Flood Depth--230.00', Capacity at Flood: Depth 17,340.66 cfs .Bank-Full Depth= 1'50';:, Capacity at'Bank-Full= 42:94'cfs ' 0.00' x 1,50' deep channel;.•n= 0.013 Side Slope Z=value=.3:0 '/.' , ,Top Width= 9.00'- • 4' • . ' Length= 615:3'. Slope= 0.0049'/' Inlet Invert= 235.00', 'Outlet Invert= 232:00' Reach R: Diin lne ' itrograph ' 0 I 1,— I I— I---1- 1—-7T —T, ❑ Inflm, I 1- a T-T--r--r- I -I- I-`-1 l -T T -,�r -1 1--1 -- ❑Outflow ' 36 1 I• I I 1 I I r -I; 32:72 cfs 34 r -_Ihflow Area=mac_ 1 r -1- -r-- -T- —•r--I —-r T —r --I ! 32 30 'c -T— T--.r--r—`—r I --r I --I--�-— � r--r --r ., 26 I •, -.+ . . -1 I--T--T--r--r--r I I- -I---1 11111a�/ei. ;I�p V---I---' 26 l JJJ 24 y l tl = r-•-r -I--1 - r--r--r--r--I---I--�.--,--r--T--,r--rr'�� I---I - i 22 .� .'--r--r 1-'--I---1 --I I--I � --ir ��r--I---I -- w 20 _ .V.. 16 r I I-' 'I---r--I - . .1 I .'S - 117­17- Q2 11F5 --1I ---1I -r--1- -1 -- ..'' ' 14" i I I r l 1 I , 12 CapactyfS P --F- 1--_1---1 +' r 1 -1. -- . • .. --1'---1---1-- -�--1---F-' 1---1---1--�---1--'1-1'--F'--1---1- 1---1_-- . $ I I I p I I I I I• I I 1 1 I I' I I 1 I 1 ,. ' 4 ..I 1 I- - I.. I 11 I I I; 1. I I I 1 - '• ^ ----------------- 0 2 4 6 8 10 12- 14 16 18, 20 22 .' 24 � 26 28 - 30 32 '34 36. 38 40 42 44 46, 48 ; s Time (hours) - { .. [ y � •• , ,. e � .tarn a• - y � '. _• - OrovilleD�ear Type 1124 F►r 100=Year -Rainfall=5.90" ' ' Prepared by'SCS Engineers s , Page 7 Hydr6CAD® 8.00 s/n 003976 © 2006 HydroCAD Software Solutions LLC . t- .. 4/29/2009 '.. , Reach IR: Erin lne . . Inflow'Area = 12 500:.ac, .Inflow Depth = • 5.20". fog 1100 -Year event , :Inflow 28.95 cfs @ 12.70 hrs; Volume= 5.414 of ' Outflow 28.91 cfs @ 12.71 hrs, Volume 5.414 aft Atten= 0%, Lag 0.8 min ; Routing l y Stor-Ind+Trans,method, Time Span= 2.00 `48.00 hrs, dt= 0.10 hrs '. Max. Velocity= 7.57 fps; Min. Travel Time= 0.4 min Avg. Velocity = 3.30'fps,: Avg:.Travel: Time= 1.10min ,. � ' Peak'Storage= 758 cf @ 12.70,hrs, Aveeage,Depth at Peak.Storage= 1.13'. ' ' Defined Flood Depth= 230:00', Capacity at Flood Depth 24;940:33 cfs Bank -Full Depth; 1.50'; Capacity at Bank -Full= 61.76 cfs 0.00' x 1.50' deep channel, n=0.0,13 -Side Slope Z -value= 3.0'/',.Top Width= 9.00' Length= 198.3' ' Slope= 0.0101 ' . Inlet Invert= 235.00', Outlet Invert= 233.00' i Y Reach IR: Erin the . I Y. ydrograph i I' I iL I_ I I I C❑. 'Inflow 32 - - 1 - - 1 - - I - - I - -I - - I . - I - - I - - -------- - - I - - ❑Outflow 'I .. I --I- 28;9.1 cfs -- ,- T--r--r 1--,- Ihfl-ow4rea=c=-I- 1 --- 1-_- ti ' - 30 ___I__�__ 26 R " -- :-I- J - -,- --- ; ----;---;---;- Avg: -Beth-:' - 26 r= -r - 1--1--r--r--r-r--I--�`- --T r- ,'r-`�--r ---1-- ' - 24 ' =-1---1---I--- �.a f --'---F--1-- 1--_I-,i ■._a_a�/e l.`7ffps -1. --I--- 22 . 1 1 1 , l i I I J I 1 1 I I I I' I 1 1 I 1 I ' lI{ ' 1__1__l. __I_=_l__1___I_ _ _I__J _J J_.L__1_ _L_. �I 1-__I__ _ 20 1'1—®-I - I I I ■/ .. I- I I I I 1 I I I 1 I 1---1— I-- T - 1-.r.--r--r 1 1—'1--1__1--T--T-'r--r'—r 1 -1--- w16 I I I 1 - I I _ I' - I I I I 1 19 i l� I- I 1 •. ' 16 ''/.' I 1i� 1 I 1 I 11 I I'• I I. 1 I •'I 1 I I , • 14 12 _-I --I f I �1 I Capacity--fs---,=-=;-- _. 10 -f- '- I --i /,--i--T--r--r i---r--I- a ' . 8 I I. I I I . 6I '•I I 1 1 I I I � I I I I � T T F 4-1---I--1-'--1 ---.11 -'1'--.r--r^-r.--r--r --� I I' I I. I 1 • 2 0 2 4 6 8 10 . 12 14 16 .18 20 22" 24 26 28 30 32 34 36 38 40- 42 44 -46..48 Time (hours) I ' OroviftWear 1 Type 24-&J!00- Year. Rainfall=5.90" , Prepared'by SCS Engineers - �.� Page 8-, Hydro'CAD® 8.00s/n 003976 © 2006 HydroCAD Software Solutions LLC *. 4/29/2009 -, ,. Pond B: ®tention=Pond',{ ~ Inflow Area = 25'0004c, Inflow Depth = ' 5.2 ' for i00 Year, event ; Inflow 61.19 cfs @ .12.65 hrs,: Volume= 10.828.af, , Outflow • 0.00 cfs @ . 2.00 hr -s:, Volume= �. 0.000 af; Atten= 100%,.Lag=-0.0 min. w Routing by Stor-Ind method, Time Span= 2.00-48.00 hrs, dt= 0:10:hr's t ti Peak Elev.= 230:39' @ 39.00 hrsSurf.Area= 2.009 ac. Storage= 10:828. of Plug -Flow detention time= (not calculated:' initial storage excedes outflow): Center -6f- -Mass det. time= (not calculated: no outflow) Volume invert, AvaiLStorage Storage Description�- #1 225.00' `" 20.087 of - , ®II storage Pond B: ®tention Pondr 3 , Ydrograoh a l I' I - I - I I- •I I I 1 I I 1 I 9 , I I I• I I t' I - I �" I n '� I - r - I '. - 1- - r T - - 1- T - T - r - `'I '1 - 1 - 1 - r - O innoW ` r - 65 1 I `' I I I. I IS I I - 1 I �1 , 't , .. I I a6�1 :19�cfs- I I Ir• 1. 1 - I .1 1 I tl-! ,• , 60 . hflow Area -c --L- I --L 55 - I 1' 1 1. I "' I. I I I • 1 -. ,. .1-=-P-ea��eV, � 1 -I I - � - 5l) E' 45 ,7 ,S lOI V_1 Of I 1 I • . _... .. I I I I- I I � I I- I 1' I I.. � I ,1 I I I I I ,I I ,,.[ • y^ 40 yL. ,-.--r--r--r--.r r--r-:-r--r- r -r-.-r--Y--T-,----r--r-y,r--r T- ;T (� 35''- v-'---I--�--�r� 1--�--I--L--L-=-1---=--I--I--�--••I--I---�"--I'--I---1-•I--� ` 12 .i �, ,, I 1 1 "I I I I - I e I I I 1 I• I I I I - ; ' r 30 .• ,... I__L_-�-__L bL__L�_L..L__Lv=L._1__1_.1__1.__1__1_L1-`1--1'__1_'-S._ .. - -- � I - I I 1 •� I-. I I 1 I I 1 I I' I I I •. I I '• I I I - .. 25 L _ _ L _ _ L _ _ IL _ _ 1 _ 1 - • I 1 � I I� I � I I I - 1. 1 I 1 I I I I '•l I tl. I � I 1 1 20 v I b I I, I- i 1 I I I I I I I I I -• I' 1. I f f=I ', I 11 1• I I I I I I I ) I1 I � � 15 1 --r--r--r--r--r--,r--r--r--r--r--r--r--r--T--'r'�-t-- 10 - I I I I• h I I a I 1 I I I � - - %� -1 r" -- r' =7 -r- -r.- 1 -.- r - r--r--.r-r--r,--r--r--1'--r---T --`T -T • • 5 0 2 4 6 -8 10 12- 14 16 18 '20 22 24 26 28+' 30 32. 34 .36' 38 40 42 44 46 -48 ` - Time (hours);' a {.t l Appendix E — USGS Soils Map for Orovitle Gold Compost Facility 331 Thompsonflat loam, 15 to 30 percent slopes 318 Thompsonflat-Oroville complex, 0 to 9 percent slopes Thompsonflat Series The Thompsonflat series consists of very deep, moderately well drained soils that formed in alluvium derived from metamorphic and igneous rocks. These soils are on intermediate and high terraces. Slopes range from 0 to 30 percent. The mean annual precipitation is about 24 inches (6 10 mm), and the mean annual air temperature is about 61 degrees F (16 degrees Q. Taxonomic class: Fine -loamy, mixed, active, thermic Ultic Haploxeralfs Typical Pedon Thompsonflat fine sandy loam, on a southeast -facing slope of 5 percent, under a cover of annual grasses, forbs, interior live oak, foothill pine, toyon, and redbud, at an elevation of 270 feet (82 m). When described on 9/26/2000, the soil was dry, throughout. (Colors are. for dry soil unless otherwise noted.) A-0 to 3 inches (0 to 8 cm); brown (7.5YR 5/4) fine sandy loam, dark brown (7.5YR 3/3) moist; 15 percent clay; moderate medium platy structure parting to moderate fine subangular blocky; slightly hard, friable, nonsticky, nonplastic; common very fine roots; common fine irregular and few very fine tubular pores; 10 percent well rounded gravel; moderately acid, pH 6.0 by Hellige-Truog; abrupt smooth -boundary. Btl-3 to 7 inches (8 to 18 cm); reddish brown (5YR 5/4), fine sandy loam, dark reddish brown (5YR 3/4) moist; 20 percent clay; moderate fine subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; few very fine to medium 1.182 Soil Survey of roots; common very fine tubular pores; 15 percent discontinuous distinct clay films on faces of peds; 5 percent well rounded gravel; moderately acid, pH 6.0 by Hellige-Truog; abrupt smooth boundary. Bt2-7 to l l .inches (18 to 28 cm); yellowish red (5YR 5/6) sandy clay loam, reddish brown (2.5YR 4/4) moist; 28 percent clay; moderate fine subangular blocky structure; hard,, firm, slightly sticky, slightly plastic; few fine and medium roots; common very fine tubular pores; 25 percent discontinuous distinct clay films on faces of peds; 5 percent well-rounded gravel and 5 percent well rounded cobbles; slightly acid, pH 6.3 by Hellige- Truog; clear smooth boundary. Bt3-11 to 15 inches (28 to 38 cm); yellowish red (5YR 4/6) sandy clay, dark reddish ' brown (2.5YR 3/4) moist; 38 percent clay; moderate fine subangular blocky structure; hard, very firm, moderately sticky, moderately plastic; few fine roots; common very fine tubular pores; 30 percent discontinuous distinct clay films on faces of peds; 5 percent well rounded cobbles and 10 percent well rounded gravel; slightly acid, pH 6.3 by Hellige-Truog; clear smooth boundary. 2Bt4-15 to 22 inches (38 to 56 cm); brown (7.5YR 5/4) gravelly sandy clay, brown (7.5YR 4/3) moist; 43 percent clay; weak fine subangular blocky structure; hard, very firm, moderately sticky, very plastic; few fine roots; common very fine tubular pores; 50 percent discontinuous distinct clay films on faces of peds; 5 percent well rounded cobbles and 25 percent well rounded gravel; slightly acid, pH 6.5 by Hellige-Truog; clear smooth boundary. ' 3Btg1-22 to 35 inches (56 to 89 cm); reddish yellow (7.5YR 6/6) extremely gravelly sandy clay loam, strong brown (7.5YR 5/6) moist; 25 percent clay; weak very fine subangular blocky structure parting to single grain; noncemented, hard, firm, slightly sticky, slightly plastic; few fine roots; few very fine tubular pores; 10 percent discontinuous distinct clay films on rock fragments and 20 percent patchy distinct clay bridges on the upper faces of peds; 10 percent silica on rock fragments and on faces of peds; 15 percent well rounded cobbles and 55 percent well rounded gravel; neutral, pH 7.0 by Hellige-Truog; gradual smooth boundary. 3Btg2-35 to. 45 inches (89 to 114 cm); reddish yellow (7.5YR 6/6) extremely gravelly coarse sandy loam, strong brown (7.5YR 5/6) moist; 12 percent clay; weak very fine subangular blocky structure parting to single grain; noncemented, hard, -firm, nonsticky, nonplastic; few fine roots; few very fine tubular pores; 10 percent discontinuous distinct clay films on rock fragments and 40 percent patchy distinct clay bridges on the upper faces of peds; 10 percent silica on rock fragments,and faces of peds; 25 percent well rounded cobbles and 55 percent well rounded gravel; neutral, pH 7.0 by Hellige-Truog; gradual smooth boundary. 3Btg3-45 to 53 inches (114 to 135 cm); reddish yellow (7.5YR 6/6) extremely gravelly coarse sandy loam, strong brown (7.5YR 4/6) moist; 5 percent clay; weak very fine subangular blocky structure parting to single grain; noncemented, hard, firm, nonsticky, nonplastic; few fine roots; few very fine tubular pores; 10 percent patchy distinct clay bridges on the upper faces of peds and 10 percent discontinuous distinct clay films on rock fragments; 15 percent silica on rock fragments and faces of peds; 5 percent fine irregular black (N 2/0) manganese masses; 20 percent well rounded cobbles and 45 percent well rounded gravel; neutral, pH 7.0 by Hellige-Truog; gradual smooth boundary. 3Btg4-53 to 66 inches (135 to 168 cm); reddish yellow (7.5YR 6/6) extremely gravelly coarse sandy loam, strong brown (7.5YR 4/6) moist; 5 percent clay; weak very fine subangular blocky structure parting to single grain; noncemented, hard, firm, nonsticky, nonplastic; few fine roots; few very fine tubular pores; 10 percent patchy distinct clay bridges on the upper faces of peds and 10 percent discontinuous'distinct clay films on rock fragments; 15 percent silica between sand grains and on rock fragments; 5 percent fine irregular black (N 2/0) Butte Area, California, Parts of Butte and Plumas Counties 1183 manganese masses; 2 percent well rounded cobbles and 70 percent well-rounded gravel; neutral, pH 7.0 by Hellige-Truog; gradual smooth boundary. 3Btg5-66 to 80 inches (168 to 203 cm); reddish yellow (7.5YR 6/6) extremely gravelly coarse sandy loam, strong brown (7.5YR 5/6) moist; 5 percent clay; weakvery fine subangular blocky structure parting to single grain; noncemented, hard,firm, nonsticky, nonplastic; few fine roots; few very fine tubular pores; 10 percent patchy distinct clay bridges on the upper faces of peds and 10 percent discontinuous distinct clay films on rock fragments; 15 percent silica between sand grains and on rock fragments; 5 percent fine irregular black (N 2/0) manganese masses; 15 percent well rounded cobbles and 70 percent well rounded gravel; neutral, pH 7.0 by Hellige-Truog. Type location: Butte County, California; about 0.5 mile north of downtown Oroville, approximately 3,350 feet east and 1,800 feet south of the northeast corner of projected sec. 8, T. 19 N., R. 4 E.; 39 degrees, 31 minutes, 14 seconds north latitude and 121 degrees, 33 minutes, 6 seconds west longitude; NAD83, USGS Quad: Oroville, California. Range in Characteristics The thickness of the'solum is more than 80 inches (203 cm); depth to the 3Btq horizon is 22 to 75 inches (56 to 190 cm) or more, and depth to 2Bt horizon is 15 to 43 inches (38 to 109 cm). The mean annual soil temperature is 61 to 64 degrees F (16 to 18 degrees C). The particle -size control section averages 23 to 34 percent clay and 4 to 34 percent rock ' fragments, mostly gravel and cobbles. Mineralogy is mixed. A fluctuating water table can occur at a depth of 40 to 80 inches(l02 to. 203 cm) from December through April. Rock fragments on the surface range from 0 to 10 percent gravel and 0 to 2 percent cobbles. The A horizon has dry color of 7.5YR.5/3; 5/4, or 6/4 or 5YR 5/4. Moist color is 7.5YR 3/2, 3/3, 3/4, 4/2, or 4/3 or 5YR 3/3 or 3/4. Texture is fine sandy loam, loam, sandy loam, gravelly fine sandy loam, gravelly sandy loam, gravelly loam, or.sandy clay loam. The content of clay ranges from 12 to 22 percent. The conient of gravel is 1 to 25 'percent. The content of organic matter is 0.5 to 1.2 percent. Reaction is moderately acid or slightly acid. The Bt horizon has dry color of 5YR 4/6, 5/4, 5/6, or 6/6 or 7.5YR 5/4 or 6/4. Moist color is 5YR 3/4,-4/4, or 4/6; 2.5YR 3/4, 3/6, 4/4, or 4/6; or 7.5YR 3/4 or 4/4. Texture is fine sandy loam, loam, sandy clay loam, sandy clay, gravelly loam, gravelly sandy loam, gravelly sandy clay loam, or gravelly clay loam. The content of clay ranges from 18 to 38 percent. The horizon has 0 to 25 percent gravel, 0 to 15 percent cobbles, and 0 to 5 percent stones. The content of organic matter is 0.1 to 0.5 percent. Reaction ranges from moderately acid to neutral. The 2Bt horizon has dry color of 7.5YR 5/4, 6/4, or 7/3 or 2.5YR 5/4, 5/6, or 6/6. Moist color is 7.5YR 4/3, 4/4, or 4/6; 5YR 4/6; or 2.5YR 4/4 or 4/6. Texture is gravelly sandy clay, gravelly clay, very gravelly clay, extremely gravelly sandy clay, sandy clay, or clay, The content of clay ranges from 38 to 55 percent. The horizon has 2 to 70 percent. gravel and 0 to 10 percent cobbles. The content of organicmatter is 0.1 to 0.5 percent. Reaction ranges from moderately acid to moderately alkaline. The 3Btq horizon has dry color of 7.5YR 5/6, 6/6, or 7/6. Moist color is 7.5YR 4/6 or 5/6. Texture is extremely gravelly sandy clay loam, extremely gravelly coarse sandy loam, gravelly sandy loam, sandy clay loam, or loamy sand. The content of clay ranges from 5 to 38 percent. The horizon has 10 to 70 percent gravel and 0 to 25 percent cobbles. Redoximorphic features range from 0 to 60 percent soft manganese masses and 0 to 2 percent soft oxidized iron masses, noncemented or very weakly cemented. The content of organic matter is O,to 0.3 percent. Reaction ranges from slightly acid to moderately alkaline. Oroville Series The Oroville series consists of moderately deep, poorly drained soils that formed in alluvium derived from metamorphic and igneous rocks. These soils are in swales on intermediate terraces. Slopes range from 0 to 9,percent. The mean annual precipitation is about 24, inches (6 10 mm), and the mean annual air temperature is about 61 degrees F (16 degrees C). Taxonomic class: Fine, mixed, active, thermic Aquic Durixeralfs Typical Pedon ' Oroville gravelly fine sandy loam, on a southeast -facing slope of 3 percent, under a cover of annual grasses and for bs, at an elevation of 280 feet (85 m). When described on 9/26/2001, the soil was dry throughout. (Colors are for dry soil unless otherwise noted.) A-0 to 2 inches (0 to 5 cm); brown (7.5YR 5/4) gravelly fine sandy loam, dark brown (7.5YR 3/3) moist; 18 percent clay; strong thick platy structure parting to moderate fine subangular blocky; slightly hard, friable, nonsticky, nonplastic; many very fine roots; few ' very fine tubular and common very fine irregular pores; 20 percent well rounded mixed gravel; moderately acid, pH 6.0 by Hellige-Truog; abrupt smooth'boundary. ' 1122 Soil Survey of BAt-2 to 6 inches (5 to 15 cm); yellowish red (5YR 4/6) gravelly sandy loam, dark reddish brown (5YR 3/4) moist; 20 percent clay; strong medium platy structure parting to moderate• fine subangular blocky; veryhard, friable; slightly sticky, ' slightly plastic; few fine and common very fine roots; few very fine tubular pores; 5 percent discontinuous distinct clay films on vertical faces of peds; 20 percent well rounded mixed gravel; moderately acid, pH 6.0 by Hellige-Truog; abrupt smooth ' boundary. Bt1-6 to 13 inches (15 to 33 cm); red (2.5YR 4/6) gravelly clay loam, dark red (2- 5YR 3/6) moist; 28 percent clay; strong medium subangular blocky structure; very hard, firm, slightly sticky, moderately plastic; few fine and common very fine roots; common very fine tubular pores; 30 percent discontinuous distinct clay films .on faces of peds; 20 percent well rounded mixed gravel; slightly acid, pH 6.3 by Hellige=Truog; abrupt wavy boundary. ' 213t2-13 to 17 inches (33 to 43 cm); reddish brown (2.5YR 4/4) gravelly clay, dark red (2.5YR 3/6) moist; 50 percent clay; strong fine prismatic structure parting to moderate fine angular blocky; extremely hard, very firm, very sticky, very plastic; few very fine roots; many very fine tubular pores; 5 percent slickensides and 50 percent continuous ' prominent clay films on faces of peds; 20 percent well rounded mixed gravel; slightly acid, pH 6.3 by Hellige-Truog; clear wavy boundary. 2Btg-17 to 23 inches (43 to 58 cm); brown (IOYR 5/3) gravelly sandy clay, brown ' (1 OYR 4/3) moist; 50 percent clay; weak fine angular blocky structure; extremely hard, .very firm, very sticky, very plastic; few very fine roots; few very fine tubular pores; 50 percent continuous prominent clay films on faces of peds; 40 percent fine irregular manganese masses; 15 percent fine distinct olive gray (5Y 5/2) iron depletions lining ' pores; 30 percent well rounded mixed gravel; slightly acid, pH 6.5 by Hellige-Truog; abrupt wavy boundary. 3Bgml-23 to 31 inches (58 to 79 cm); extremely gravelly, indurated duripan; very rigid, cemented by silica, nonsticky, nonplastic; 2 percent well rounded mixed cobbles and 75 percent well rounded mixed gravel; clear wavy boundary. ' 3Bgm2-31 to 60 inches (79 to 152 cm); extremely gravelly, strongly cemented duripan; rigid, cemented by silica, nonsticky, nonplastic; 2 percent well rounded mixed ' cobbles and 75 percent well, rounded mixed gravel. Type location: Butte County, California; about 0.5 mile north of downtown Oroville, in the Fernandez Land Grant, approximately 3,200 feet west and 1,100 feet south of the northeast corner of projected sec. 8J. 19 N., R. 4 E.; 39 degrees, 31 minutes, 20 seconds north latitude and 121 degrees, 33 minutes, 5 seconds west longitude; NAD83; USGS Quad: Oroville, California. Range in Characteristics ' Depth to the extremely gravelly, indurated duripan ranges from .20 to 40 inches (51 to 102 cm); and depth to the 2Bt horizon ranges from 6 to 27 inches (15 to 69 cm). The mean annual soil temperature is 61 to 64 degrees F (16 to 18 degrees C). The particle -size control section averages 35 to 50 percent clay and Ito 35 percent rock ' fragments, mostly gravel. Mineralogy is mixed. A fluctuating water table can occur from the top of the duripan to the surface of the soil from December through April. Rock fragments on the surface range from 5 to 20 percent gravel. . The A horizon has dry color of 7.5YR 5/3, 5/4, 6/3, 6/4, or 7/3 or 5YR 3/4. Moist color is 7.5YR 3/3, 3/4, 4/3, or 4/4; 5YR 3/4 or 4/4; or 2.5YR 3/4. Texture is gravelly sandy ' loam, fine sandy loam, sandy loam, or loam. The content of clay ranges from 15 to 24 percent. The content of gravel`is 5 to 20 percent. The content of organicmatter is 0.5 to 2 percent. Redoximorphic features range from Oto 10 percent soft oxidized iron masses ' and O to 20 percent iron depletions. Reaction is moderately acid or slightly acid. The BAt horizon has dry color of 7.5YR 5/4, 6/3, or 6/4 or 5YR 4/4, 4/6, or. 5/3. ' Moist color is 7.5YR 4/3 or 4/4, 5YR 3/4 or 4/4, or 2.5YR 3/4. Texture is gravelly sandy Butte Area, California, Parts of Butte and Plumas Counties 1123 loam, gravelly fine sandy loam, gravelly loam, loam, or sandy loam. The content ofclay ranges from 18 to 25 percent. The content of gravel is 3 to 20 percent. The content of organic matter is 0.2 to ' 0.8 percent. Redoximorphic features range from 0 to 30 percent soft oxidized iron masses, 0 to 15 percent iron depletions, and 0 to 5 percent soft manganese masses. Reaction ranges from moderately acid to neutral. The Bt horizon has dry color of 7.5YR 5/4, 6/4, or 7/4; 5YR 5/4 or 5/6; or 2.5YR 4/6. Moist color is 7.5YR 4/3 or 4/4; 5YR 3/4, 4/4, 4/6, or 4/8; or 2.5YR 3/6. Texture is gravelly clay loam, gravelly sandy clay loam, very gravelly sandy clay loam, .sandy clay loam, or clay loam. The content of clay ranges from 22 to 35 percent. The content of gravel is 5 to 40 percent. The content of organic matter is 0.1 to 0.5 percent. , Redoximorphic features range from 0 to 2 percent soft oxidized iron masses and 0 to 15 percent soft manganese masses. Reaction ranges from moderately acid to neutral. The 2Bt horizon has dry color, of 10YR 5/3 or 5/4; 7.5YR 5/4 or 7/4; 5YR 4/4,4/6, 5/4, or 5/6; or 2.5YR 4/4. Moist color is l OYR 4/3 or 4/4; 7.5YR 4/3 or 4/4; 5YR 3/3, 3/4, 4/4, or 4/6; or 2.5YR 3/6. Texture is gravelly clay, gravelly sandy clay, sandy clay,or clay. The content of clay ranges from 45 to 52 percent. The horizon has 5 to 45 percent gravel and 0 to 2 percent cobbles. The content of organic matter is 0 to 0.3 percent. Redoximorphic features range from 0 to 20 percent iron depletions and 0 to 40 percent soft manganese masses. Reaction ranges from moderately acid to neutral. The 2Btg horizon has dry color of 10YR 5/3 or 5/4; 5YR 4/4, 4/6, 5/6, or 6/4; or 7.5YR 5/4 or 7/4. Moist color is 10YR 4/3 or 4/4; 5YR 3/3, 4/4,4/6, or 5/4; or 7.5YR 4/4. Texture is gravelly sandy clay, gravelly clay, sandy clay,, or clay. The content of clay ranges from 45 to 55 percent. The content of organic matter is.0 to, 0.3 percent: Redoximorphic features include iron depletions and manganese masses. Reaction is slightly acid or neutral. The 3Bq horizon, where it occurs, has dry color of 7.5YR 6/4 or 6/6. Moist color is 7.5YR 4/4, 4/6, 5/4, or 5/6. Texture is very gravelly sandy loam, sandy clay loam, or sandy loam. The content of clay ranges from 12 to 28 percent. The content of gravel is 0 to 40 percent. Redoximorphic features range from 0 to 20 percent soft manganese masses. Reaction is slightly acid or neutral. . The 3Bgm horizon is indurated to moderately cemented with silica. A silica and manganese capping- 1/16 to 3/8 inch thick occurs in some pedons. Manganese coatings occur on top of the duripan. The horizon has 15 to 80 percent well rounded gravel and 0 to 5 percent cobbles. Oroville Gold LLC Odor Impact Minimization Plan Presented to: Butte County Public Health Environmental Health Division 202 Mira Loma Drive Oroville, CA 95965 (530) 538-7281 Presented by: SCS ENGINEERS 3843 Brickway Boulevard, Suite 208 Santa Rosa, CA (707) 546-9461 May, 2009 File No. 01203196.01 Offices Nationwide www.scsenginee►s.com Orovil.le Gold LIMITATIONS AND 'DISCLAIMER This Report has been prepared on behalf of Oroville Gold. LLC with specific application to the proposed Oroville Gold LLC composting facility located in Oroville, California.- Reports are prepared in accordance with the care and skill generally exercised -by reputable professionals, under similar circumstances, in this or similar localities. No other warranty, either expressed or implied, is made as to the professional advice presented herein. Changes in Site use and conditions may occur due to variations in rainfall, temperature, water usage, or other factors. Additional information that was not available to the. consultant at the time of this report or changes that may have occurred on the Site or in the surrounding area may result in modification to the Site that would impact the summary" presented herein. This report is not a legal opinion. We look forward to continuing to work with you on this project and trust this report,provides the information you require at this time. If you have any questions or need additional information, please call Jane Gaskell at SCS on (707) 546-9461. Jane Gaskell Project Manager Linda Taverner, Project Director Vice President Oroville California Date Date OIMP t , OraviIIe Go.Id Table .of Contents - ' Section Page Limitations and Disclaimer................:.:...:.:...................:.:...:.:......:........:.:.:.....::.......:............:.:.....:............:......:.i. Listof Attachments ................................................. ................................. ................... ...................................ii .: 1 Introduction ....:.. :....... ......... ......... ..:..... .:..... :... ............... ...:............... 2 Odor Monitoring Protocol ........... :...................................................... .................................................. T Proximity of Odor Receptors ........................... ....... .......... ......................................................... 1 ' Method: for Assessing Odor Impacts ..................................... ...... 2 Meteorological Conditions........................................................::............................... ...... ..2 Wind Velocity and Wind Direction..::......::...:......:..................::..................:..... ..... ......2 tPrecipitation.......... .... ..................................................... 3 Complaint Response Protocol .... ......... ......... ........: ......... ............................................ 3 4 'Design Considerations and Operating Procedures for Minimizing Odors .:.............................:.. 4 ' Facility Design ...::....................................... ........ ......:: ....:............... ......................:...4. Aeration................................................................................ ......::.............. ...:...............:::.......5 Moisture Content of. Materia ls.....:........:.....................................................:.........: ................5 Material Processing, Handling and Storage ..:. ............. ....................5 ................................................. .......... . .... ......... ................... ................... 6 yFeedstocks ProcessedMaterial :........... ........................ ...... ................ :.............. ..................................... 6 Handling ...... ....................... :.............................................................................................. 7 Personnel Training ...........:.....................................:........................ ..... ... .....8 Contingency Plans:..................................:.....:...............:.....:......:.......................................:..:......8 5Plan Revision.....:.. .... ............. 8 ' 6 ' Distribution ........... :........ ... ............. 9 LIST OF ATTACHMENTS' ' Figure No. 1 General Site Location ' Appendices A California Code of Regulations ' B Climatic Conditions for Oroville, California ' C Compost Odor, Causes and Remedies D Report of Composting Site Information Oroville ii GIMP California . ro.ville Gold 1 INTRODUCTION California Integrated Waste Management Board (CIWMB) regulations (April 4, 2003) Title 14, CCR Section 17863.4 require that all compostable material handling operations and facilities prepare and maintain a. site-specific Odor Impact Minimization Plan' (GIMP). Oroville Gold LLC, a proposed composting facility located in Oroville; California; developed this ORv1P to provide best -management practices (BMPs) for odor,reduction to ori -site personnel'in regards to the handling, storage and processing of compostable materials. Facility Location: The site is located southeast of -the City of Oroville, Butte County, California. The facility is located in the NE 1/4 of the Palermo 7:5' Quadrangle at the juncture of Sections 29, 30, 31, and 332, Township 19 North and Range 4 East, Mount Diablo Base and Meridian (Figure 1). The site is bound by Union Pacific and Southern Pacific railroad rights of way on the west, north, and east, and by Ophir Road on the. south. Access to the site is from the south via Ophir Road and north on the interior property. road. An operational focal point of Oroville Gold LLC will be the reclamation of various types wood waste including sawdust, chips, bark, cleanings from the log decks, ash and cover materials from three waste management units (WMUs) located adjacent to the proposed composting facility. This carbon -rich wood waste will be composted through the addition and regulation of moisture and nitrogen -rich feedstocks. Wood ash.will also be recovered from the WMUs. The stockpiling of feedstocks and the composting process could possibly be a source of odors detectable in the vicinity of the compost facility.. By implementing this ORV1P, Oroville Gold LLC will be able to minimize the environmental conditions favorable to the production of these odors.. The OR\4P is to be used as a training tool for Oroville Gold LLC personnel, and as a public relations document to address any concerns of community members. The following provides specific information on compliance with §17863.4 (b)=(d). The text from Title 14 (Appendix A) is presented in italics followed by Groville Gold LLC's proposed method of compliance. (b) Odor impact minimization plans shall provide guidance to on-site operation personnel by . describing, at a minimum, the following items. If the operator will not be implementing any of ' these procedures, the plan shall explain why it is not necessary. ' 2 ODOR MONITORING PROTOCOL ' (1) An odor monitoring protocol which describes the proximity of possible odor receptors and a method for assessing odor impacts at the locations of the possible odor receptors; Proximity of Odor Receptors The former Louisiana Pacific Sawmill Class 3 landfill is located to the immediate north of the composting operation; Southern Pacific Railroad, then vacant and light industrial land to the east; 0ro.viIIe 1 GIMP California Oroville Gold Ophir Road and Norcal Metal Fabrication, a scrap yard, and other light industrial facilities to the south Union Pacific Railroad, light industrial and Marysville-Baggeit Road are located to the west. The closest residences are approximately a half mile to the south, directly upwind of the prevailing SSE wind direction (Appendix B). 'Method for Assessing Odor Impacts Odor impacts will be assessed qualitatively by facility personnel. Facility personnel will be the first line of detection of nuisance odors, and will be the most heavily impacted. Through training and experience, facility personnel should be able to identify the odor sources and remediate them -as needed. They will be familiar with the circumstances of the operation that potentially may lead to the release of objectionable odors. If questionable or objectionable on-site odors are detected by site personnel, the facility operator will implement the following protocol: 1. Investigate and determine the likely source, of the odor. 2. Assess the effectiveness of available on-site management practices to resolve the odor event and immediately take steps to reduce the odor -generating capacity of on-site material. (Possible on-site odor sources and BMPs for this site are shown in Appendix C.) 3. Determine if the odor traveled off-site by surveying the site perimeter and noting existing wind patterns. 4. Determine whether or not the odor event (or potential odor event) is significant enough to warrant contacting the neighbors and/or the local enforcement agency (LEA). 5. Record the event and any corrective actions taken for further operational review. ' Meteorolo ical Conditions g o s ' (2) A description of meteorological conditions effecting migration of odors and/or transport of odor -causing material off-site. Seasonal variations that effect wind velocity and direction shall also be described; ' Wind Velocity and Wind Direction The weather station at the Oroville Airport, located approximately 3.5 miles from the Oroville Gold LLC facility, showed the average prevailing wind direction to be from the south southeast for the period 1992 to 2002. This was the prevailing direction for every month except September ' and October, where the wind was predominantly from the east. The average wind speed was 6.4 mph for the period 1996 to 2006 (Appendix B). This wind direction limits the exposure of odors to the closest residential area, approximately one half mile to the southeast (directly upwind). In the downwind direction, there are no residential sites within two miles, with several other industrial sites interspersed between them and the compost facility. Precipitation The Oroville area receives an average of 26.8 inches of precipitation annually, the majority between November and April. January has the highest average monthly rainfall of 5.53 inches (Appendix B). With the proper grading and drainage proposed for the site and compostable Oroville 2 OIMP ' California G Oroville Gold material management, this amount of rainfall should not lead to anaerobic, odor -causing conditions. 3 COMPLAINT RESPONSE PROTOCOL (3) A complaint response protocol; 1. Should the LEA receive a complaint, they will notify the facility operator as soon as possible. During. working hours, this will be the Oroville, Gold LLC operations office at (530) 533-1221. After working hours, this will be the Oroville Gold LLCoperations office at (53%518-8842: 2. Should the operator receive the complaint, they will record in the Site Operations Log: a. the nature of the complaint, b. the date the complaint was received, c. if available, the name, address, and telephone number of the person or persons making the compliant, and d. any actions taken to respond to the complaint. e. if an incident requires the implementation of emergency procedures, the LEA will be notified by the operator within 24 hours 3. Along with a record of received complaints, the Site Operations Log will also record: a. any special occurrences encountered during operation and methods used to resolve problems arising from these events, including details of all incidents that required implementing emergency procedures. b. the quantity and type of,feedstock received and quantity of compost and chipped and ground_ material produced. Agricultural compostable materials handling operations shall maintain records only for compostable material accepted from off-site. c. the number of load checks performed and loads rejected. d. all test results generated by. compliance with Article 7 of Chapter 3. 1, Title 14 CCR, including but not limited to, metal concentrations, fecal coliform and Salmonella sp. densities, temperature measurements, and dates of windrow turnings. e. pathogen reduction methods. Oroville 3 OIMP California Oroville Gold WIPWIMEM22 INEERS f. any. serious injury to the. public occurring on-site and.any complaint of adverse health effects to the public attributed to operations. Serious injury means any injury that requires inpatient hospitalization for a period in excess of 24 hours or in which a member of the public suffers a loss of any member of the body or suffers any degree of permanent disfigurement: g. training and instruction completed in accordance with section 17867.5, Article 7 of Chapter 3. 1, Title 14 CCR. 4. In addition, all records required by Chapter 3.1 shall be kept.in one location and ' accessible for five (5) years and shall be available for inspection by authorized' representatives of the board, EA; local health entity, and other duly authorized regulatory and EAs during normal working hours. 4 DESIGN CONSIDERATIONS AND OPERATING ' PROCEDU.RES FOR MINIMIZING ODORS (4) A description of design considerations and/or projected ranges of optimal operation ' to be employed in minimizing odor, including method and degree of aeration, ;moisture content of materials, feedstock characteristics, airborne emission production, process water distribution, pad and site drainage and permeability, equipment reliability, ' personnel training, weather event impacts, utility service interruptions, and site specific concerns; and, ' (5) A description -of operating procedures for minimizing odor, including aeration, moisture management, feedstock quality, drainage controls, pad maintenance, wastewater pond controls, storage practices (e.g., storage time and pile geometry), contingency plans (e.g., equipment, water, power, and personnel), biofiltration, and tarping. Facility Design The Oroville Gold LLC facility was designed as a combination of a traditional turned windrow. composting operation utilizing natural aeration and aerated static piles. ,Under a full solid waste permit, the 63 -acre facility will contain a 25 -acre concrete pad for composting and storage. However, the initial phase of the'composting facility will consist of a 5.5 -acre composting site; this will include a 3.O acre concrete composting pad with 2.5 unpaved acres for finished compost storage and sales. The concrete pad will be impermeable. Regarding the unpaved area, the Thompson flat soils present at the site contain up to 50% clay a permeability of. approximately 10-3 in its un -compacted state. The compacted'value will need to be determined through a . ' geotechnical analysis. The pad will be designed by a licensed civil engineer and be sloped to precludeponding conditions. The sloped concrete pad will allow the windrows to be managed for odor reduction even in the winter months and leachate collection. The entire composting area will be constructed on a 3% grade and designed to capture all runoff. Excess leachate will be Oroville ' 4 OIMP ' California Oroville Gold collected via a lined, engineered culvert and stored in a leachate pond for reuse in maintaining pile moisture. Aeration Maintaining aerobic conditions in the windrows is essential to odor management. Aerobic conditions will be promoted by grinding feedstocks to consistent particle size, turning the windrows as the composting process dictates, and controlling windrow size to a height of 6 to 9 feet. Variant particle size and turning promote adequate pile porosity. Coupled with windrows that have the correct surface to volume ratio, air is able to exchange throughout the pile, maintaining aerobic conditions (see Appendix C for specific parameters). Air will be forced through the static piles to maintain aerobic conditions under a moisture -based control system, The piles will be aerated continuously if the moisture content is above 60%, and intermittently until the piles reach 40% moisture. Below 40% moisture, aeration will cease to avoid over - drying the piles. Moisture Content of Materials Water will be added to incoming feedstocks with available water spray equipment to achieve a windrowed moisture content of 40 to 60%, and windrow moisture will be maintained within this range. This. will minimize dust and other airborne emissions, significantly reducing the transport of odor molecules. During the winter, should precipitation raise the moisture content above 60%, the windrows will be turned to dry them to preclude anaerobic conditions. The table below illustrates the mixture of feedstocks needed to achieve an ideal starting moisture content (60%) and carbon to nitrogen ratio (30:1). 01 Table 1- Moisture and Carbon/Nitrogen. Ratio Calculation. Spreadsheet The spreadsheet then calculates the mixture moisture content and C/N ratio. Initial Ingredient % Moisture % C % N Mass (lbs.) wood waste 39.0 57.7 0.1 4.18E+07 cattle manure 81.0 45.6 2.4 3.00E+07 green waste 80.0 57.8 3.4 3.00E+07 poultry manure 37.0 37.8 2.7 3.79E+07 fruit waste 80.0 56.0 1.4 2.50E+07 Calculated mixture moisture content: 59.9 0 Calculated mixture C/N ratio: 30.3 http://www.cals.comell..edu/dept/compost/ Material Processing, Handling and Storage The majority of the composting feedstock will be excavated wood waste from two WMUs and one ash WMU located adjacent to the proposed composting facility. The carbon -rich wood Oroville 5 OIMP California r Oroville Gold wasteis relatively stable and not a significant source of odors. The ash will not be a source of F nuisance odors-. Nitrogen -rich green materials such as .poultry manure, dairy manure and ' . bedding, culled fruit, and green waste will be brought in to promote the composting process; these materials are more susceptible to ammonia production and anaerobic conditions. Therefore, the nitrogen -rich materials will'be ground and incorporated into windrows with a final ' carbon to nitrogen ratio of 30:1 within 48 hours or immediately if the incoming material is particularly noxious. Overs will be ground with the incoming green waste to reduce odors'.. ' An explanation of the operation's detailed processing, handling and storage practices .is given in the Report of Composting Site Information, a complete copy of which is included as Appendix D. For ease of reference a summary of the main feedstocks is provided below. Feedstocks ' The timing of feedstock processing varies with the material. Niany are incorporated into the composting process immediately; others are stored on site for use over a prolonged period. Processed Material . ' Processed Feedstocks: The. potential storage time for different materials depends on:their function in the composting process and the time of year when they arrive at the facility. As stated above, see the attached table for more details. ' PR Windrows: The average windrow remains in place for approximately nine (9) to twelve (12) days. ' Aerated Static Piles: The ASPs are in a constant state of flux as'material is both added and removed on a daily basis. On average, material will remain in the ASP for approximately 90 days. Curing Static Piles: The material is removed from the ASP and remains in an unaerated pile for approximately 30 days before it is moved into the Curing Windrows. '. Curing Windrows: This final process takes an average of 10 days to 2 weeks until the compost is fmished. ' Finished Compost: The sale of finished compost is seasonal, with the bulk of sales, occurring in the fall. In practice, compost is removed from the ASP and screened within ' days of shipping. ' 1 Comprehensive Compost Odor Response Project, San Diego State University, contracted by Integrated Waste Management Board, March 2007 Oroville 6 OIMP ' California 0 r o v i I I e Gold Handling. Poultry and Agdcultural Waste Oroville Gold will receive &variety of Agricultural Wastes. Upon,arrival, items such as chicken carcasses have very little odor, but if left unprocessed for a couple of days they can become quite putrid. In order to prevent that from occurring, these materials will be incorporated into windrows the day of arrival. Culled Fruit Waste Culled fruit waste will usually arrive at the site in a semi-liquid state. If that is the case,it is dumped on a diked bed of bulking agent in order to contain the liquid, and then incorporated into the windrows. Solid fruit will be incorporated directly into the. windrows. In either case the fruit will be incorporated into the,windrows the day of arrival or covered with bulking material. Other Liquid Wastes Oroville Gold may receive a variety of liquid wastes such as wine lees, brewery sludge, yeast, beer, and glycerin from the production of biodiesel. These liquids will not be stored on site. They are hauled to the site by tank truck and then, using the windrow turner, turned into the windrows thus reducing the. potential of objectionable odors. Grape Pomace Grape pomace will arrive at the facility with excessive moisture and an odor of wine. Within hours of arrival it will be stacked and excess moisture will be captured by the leachate containment system. Pomace is produced by the wineries for several months in the fall, which is also the time of year when unusual weather conditions can potentially take the pomace odor to off-site receptors. In order to reduce the likelihood of pomace odors reaching off-site properties, Oroville Gold will keep the pomace covered, and piled up as tightly as possible. It will be kept tarped when it is not in use. Ponding of the juice from the pomace is also a possible'source of off site odors. Ponding will be -eliminated by directing the juice via the shortest path possible to the nearest drain. General Mitigations Good housekeeping will be practiced; unincorporated material between the windrows, another possible odor source, will be collected and reincorporated into newly formed windrows. Standing water will be absorbed with dry materials and Oroville 7 OIMP California O.ro.viIle, Gold incorporated into windrows. The .concrete pad will be inspected and significant cracks will be repaired as needed to prevent material build up. If windrowed compost becomes too moist due to rainfall, it.will be turned frequently until the moisture level drops to 60%. If the aerated static piles'.. moisture level.becomes greater than 60%, the aeration system will be operated until the moisture level drops to 60% throughout the pile. Personnel Trgi.ning' Oroville. Gold LLC will provide regular training to new and existing 'employees regarding composting BMPs and odor. management.. Training will be conducted on a monthly basis and documented. Contingency Plans The facility will operate using common diesel powered material handling equipment (primarily front-end loaders), which are easily replaced by rental equipment in case of equipment failure: Initially, contract grinding services will be used for grinding. Once the facility purchases a: fall - time grinder; contract -grinding services will be used in, the case of equipment failure. 5. PLAN REVI'SfON (c) The odor impact minimization plan shall. be revised to reflect any changes, and a copy shall be provided to the EA, within 30 days of those changes. (d) The odor impact minimization plans shall be reviewed annually by the operator -to, determine if any revisions. are necessary. A copy of the Oroville Gold LLC Odor Impact Minimization Plan will be kept at the Oroville Gold LLC Administration office, as well at the Butte County Health Department office. The ORVIP will be revised within 30 days to -reflect significant changes to operations that affect the OIMP. The plan will be reviewed at a minimum of once yearly on the anniversary of its approval and any necessarychanges and updates will be made. � Jt •� f "f r •- _ 1 . �t Source of Base Map: DELORME 2000® ; SITE LOCATION MA P AP'ROX SCAu 380.9 BRICRWAY BOULEVARD SURE 208, SANTA ROSA, CA 854°3 FH. non 548-9481 FAX (707) 544--6789 • . e OROVILLE GOLD LLC < FIGURE PROD. NO: TAID:q BY:FRE ORPHIR ROAD , h ' 01203916.00 3t$6SiteLocMap OROVILLE, CALIFORNIA r '� DATE: 7/17/08 CREAT BY APP. BY: LST ' ' • f Appendix A California Code of Regulations, ; Title 14, Natural Resources --Division 7, CIWMB, Chapter 3. 1, Article 3 Section 17863.4 ■ Regulations: Title 14, Natural Resources--Division-7, CIWMB Chapter 3.1. Compostable Materials Handling Operations and Facilities Regulatory ' Requirements 17863.4: Odor Impact Minimization Plan. (a) All compostable material handling operations and facilities shall.prepare, implement and maintain a site-specific odor impact minimization plan. A complete plan shall be submitted to . the EA with the EA Notification or permit. application. ' (b) Odor impact minimization plans shall provide guidance to on-site, operation personnel by describing, at a minimum, the- following items. If the operatormill not be implementing any of these procedures, the plan shall explain why it is not necessary. 1 (1) An odor monitoring protocol which describes the proximity of possible odor receptors ' and:a method for assessing odor impacts at the locations of the possible odor receptors; (2) A description of meteorological conditions effecting migration -of odors and/or transport of odor -causing material off. -site. Seasonal variations that effect wind velocity ' and direction shall also be described; (3) A complaint response protocol; ' (4) A description of design considerations and/or projected ranges of optimal operation to be employed in minimizing odor, including method and degree of aeration, moisture ' content of materials, feedstock characteristics, airborne emission production, process water distribution, pad and site drainage and permeability, equipment reliability, personnel training, weather event impacts, utility service interruptions, and site specific concerns; and, 0 (5) A description.of operating procedures for -minimizing odor, including aeration, moisture management, feedstock quality, drainage controls, pad maintenance, wastewater pond controls, storage practices (e.g., storage time and pile geometry), contingency plans (e.g., equipment, water,,power, and personnel), biofiltration, and tarping, if necessary. ' (c) The odor impact minimization plan shall be revised to reflect any changes, and a copy shall be provided to the EA, within 30 days of those changes. 1 (d) The, odor impact minimizationplans shall be reviewed annually by the operator.:to determine if any revisions are necessary. r (e) The odor impact minimization plan shall be.used by'the EA to determine whether or not the operation or facility is following the procedures established`by'the operator. If the EA determines ' that the odor impact minimization plan is not being followed, the EA may issue a Notice and Order (pursuant to section 18304) to require the operator to ,either. comply with.the odor impact minimization plan or to revise it. (f) If the odor impact minimization plan is being followed;, but the odor, impacts are still occurring, the EA may issue a Notice and Order (pursuant to section ';18304) requiring the operator to take additional reasonable and feasible measures to minimize odors. Note: ' Authority cited: Sections 40502, 43020, 4302/ and 43209.1 of the Public Resources Code. Reference: Sections. 43020, 4320/ and 43209.1 of the Public Resources Code. c. I i Appendix B. ' Caim.atic Conditions for OrdVille, California ' AVERAGE AVERAGE- WIND SPEED AVERAGE PRECIPITATION MONTH WIND DIRECTION IN MPH IN INCHES! ` (1992-2002) (1996-2006) (1953-2007), JAN SSE 5.9 5.53 FEB'- SSE 7.0 4.77 MAR SSE 7:7 4:10 APR "_ SSE 7.7 2.21 ; ' MAY' SSE -. :7.1 1.02 JUN -SSE' 7.0 0.37 ' JUL SSE 6.4 0.04 AUG SSE 5.9 0.16 SEP, E 5.6 OCT E 5.5 " 1.57 ' NOV SSE 5.5 .3.66 i DEC SSE 6.6 4.86 t ANN SSE 6.4 28.67, Source:° Western Regional Climate Center Wind direction .http://www.wr-cc.dii.edu/htinlfiles/westwinddir html Wind speed: http://www.wrec.dri:edu/htmlfiles/westwind.fmal.html Precipitation: http://www.wrcc:dri.edu/cgi-bin/cliMAIN.pl?ca6521. 1 Appendix C Compost Odor Causes and Remedies' ' Three main types of problematic odors may be produced as a result of.less than optimal composting process: ammonia, hydrogen sulfide (1-12S) and volatile fatty acids (UFAs) The type of odor can give an indication of the root of the problem. More oxygen is needed to remedy these conditions; this is usually achieved by mixing or some other type of aeration..Table 1 sets out ' some of the main causes and potential remedies. - Table 1: Causes and remedies for odor problems Source: The On -Farm Composting Handbook, Northeast Regional Agricultural Engineering Service, 1992. ' Due to the carbon -rich nature of the wood wastes to be composted at Oroville Gold LLC (e.g. wood chips have a C -N of approximately 600:1), excess ammonia production should not be a factor in the compost piles, but may occur in the piles of nitrogen -rich feedstocks if they are not t mixed in due time. The majority of nuisance odors produced in a composting operation are due to the existence of ' anaerobic conditions. Four things that commonly lead to anaerobic conditions are: excess moisture, inadequate porosity, excessive pile:size, and a rapidly degrading feedstock (Cornell Waste Management Institute, 2005). Addressing the first three should.resolve a majority of H2S . ' and VFA gas production, as these are a direct result of anaerobic microbial metabolism. Rapidly degrading feedstock will be immediately mixed with bulking agent,in order mamtam.to the necessary porosity and nitrogen levels. o a; It is generally accepted that the ideal moisture is between 40% and 60 /o. Incoming material will be sampled and the moisture content will be determined. Water may be added upon mixing if ' the average moisture of the feedstocks does not fall in this range. Wetter ingredients may be mixed with drier ones to achieve the proper moisture content. Excessive' -moisture blocks pore space mAhe pile and restricts the movement [of oxygen. tAdequate, porosity aids in the even distribution of oxygen throughout the. pile and discourages anaerobic conditions. Feedstocks should be ground with a tub grinder to achieve a appropriate ' particle size; and. compost -windrows will be thoroughly mixed by either front loader or a specialized windrow turner to promote adequate porosity in the windrow. ' Apart from feedstock composition which will be discussed in the next'section, pile size is an important factor in maintaining aerobic conditions. If the pile is too deep or high, oxygen.will. not reach the center of the pile before it is consumed and the center will become anaerobic ' therefore forced air will be used on these -piles. Ammonia odors can be formed aerobically as well as anaerobically, so the above control ' strategies recommended for anaerobic odors may not apply. Ammonia is not pervasive, diffuses easily, and is less dense than air Therefore; it should not present an odor impact at:any distance from the site, but could impact facility personnel. Ammonia (NH4) gas: is produced as a response of excess available nitrogen in the feedstock. More carbon is needed!to balance the feedstock, ' with the ideal carbon to nitrogen (C:N) ratio being 30:1. Ammonia production is only likely to be a factor in the nitrogen -rich feedstocks brought in to compost the wood waste. This production will be minimized by rapidly incorporating the nitrogen -rich feedstocks into windrow piles with the correct C:N ratio. Source: Cornell Waste Management Institute, http://compost.css.comell.edu/science.html, 2005.