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Home My WebLink AboutMINUTES - 02051991 - IO.6 I.O.-6 t I_ i TO: BOARD OF SUPERVISORS ,E.. .... o .. Contra FROM: jl- INTERNAL OPERATIONS COMMITTEE �,` _ ..'s Costa y P��-•r. ,�• January 28, 1991 ��, �;-�_ County DATE: EVALUATION CONDUCTED BY THE TASK FORCE ON COMPOST OF THE ACME SUBJECT: TRANSFER STATION'S PROPOSED COMPOSTING PROGRAM SPECIFIC REQUEST(S)OR RECOMMENDATION(S)&BACKGROUND AND JUSTIFICATION RECOMMENDATION• 1. Accept. the attached proposal from Acme Fill Corporation for their Composting Demonstration Project. 2 . Request the Task Force on Compost to provide the Internal Operations Committee with their final evaluation and recommendations on the Acme composting proposal on February 25, 1991 . BACKGROUND: On December 18, 1990 , the Board of Supervisors agreed in concept with the composting proposal outlined by Acme Fill Corp, and requested staff to return to our Committee on January 28, 1991 . with the Compost Task Force's evaluation of the Acme Proposal. Acme did forward their proposal to the Compost Task Force, but not until the day of their last meeting. There was, therefore, insufficient time for the Task Force to carefully study the proposal and evaluate it in any detail. The Task Force has, therefore, asked to have time to review the proposal in more detail at their meeting on February 12, 1991, following which the Task Force will provide our Committee a full report on February 25, 1991 . We anticipate providing the Board of Supervisors with a complete set of recommendations following our February 25, 1991 meeting. CONTINUED ON ATTACHMENWo SIGNATURE: RECOMMENDATION OF Ons RECOMMENDATION OF BOARD COMMITTEE APPROVE SIGNATURE(S): ER SUNNE WRIGHT MCPEAK ACTION OF BOARD O _ February 5, 19 91 APPROVED AS RECOMMENDED X OTHER VOTE OF SUPERVISORS I HEREBY CERTIFY THAT THIS IS A TRUE X UNANIMOUS(ABSENT i ) AND CORRECT COPY OF AN ACTION TAKEN AYES: NOES: AND ENTERED ON THE MINUTES OF THE BOARD ABSENT: ABSTAIN: OF SUPERVISORS ON THE DATE SHOWN. CC: ATTESTED � f � � County Administrator PHIL BATCHELOR,C K OF THE BOARD OF Community Development Director SUPERVISORS AND COUNTY ADMINISTRATOR Catherine Kutsuris, Senior Planner Community Development Department BY DEPUTY M382 (10/88) CONTRA COSTA COUNTY COMMUNITY DEVELOPMENT DEPARTMENT R-52J TO: Internal Operations Committee DATE. January 18, 1991 Supervisor Robert Schroder, Chair Supervisor Sunne Wright McPeak FROM: Catherine Kutsuris Senior Planner. SUBJECT: ACME!-FILL CORPORATION'S COMPOSTING DEMONSTRATION PROJECT PROPOSAL At the December 10, 1990 Internal Operations Committee meeting, the Committee received the Compost Task Force's report on their review of Acme Fill Corporation's Composting Demonstration Project Proposal. The Compost Task Force recommended that the proposal be supported in concept and that Acme Fill Corporation return to the Task Force with a more detailed proposal. Acme Fill Corporation submitted their revised proposal, a copy of which is attached, to the Compost Task Force at their January 9, 1991 meeting. The Task Force members are currently reviewing this proposal and 'expect to forward their recommendation to you following their February 12, 1991 meeting. If you have any questions, please call me at extension 6-4195. CK:vpl v1/ac me.mem Acme Fill. Corporation . 1 CompostingDemonstration I ProjectProposal ]Prepared. for: Acme Fill Corporation 1 Martinez, California Brown, Vence '& Associates i _ f EXECUTIVE SUMMARY Acme Fill proposes to develop a composting demonstration project on its 97-acre East Parcel landfill near Martinez. The project will use yard debris (including yard clippings,. leaves, tree trimmings, prunings, brush, and weeds) received at Acme's interim transfer station to create a high-quality compost product..The project will provide a. unique opportunity for Contra Costa County and participating municipalities to compost collectively and to move toward compliance with the ambitious recycling goals of AB 939. It will also provide data and valuable experience for future composting operations in the County. The compost demonstration will be developed in three distinct phases. Phase One is designed to use, to the extent possible; existing equipment at Acme. Phase Two will increase processing capability by purchasing additional equipment, and increasing staffing. Phase Three further increases processingcapability by extending the hours of operation to include a second shift. Phase One will process about 20 tons per day, Phase Two about 50 tons per. day, and Phase Three about 100 tons per day. Phase Two includes a back=yard composting demonstration garden. with examples of backyard composting technologies-, educational exhibits, plants and flowers grown in compost produced by the project, a greenhouse heated by landfill gas. and a place for residents to pick up Acme's compost. There is no set schedule for implementing each phase. The shift from one phase to the next depends on equipment capability and operating experience. Two other important factors will be hauler participation. and availability of compost markets. Acrne plans to avail itself to competent technical consultants and available local expertise in the planning, design, and operation of the project. Project costs, once approved by the County, would be incorporated into the rate-setting process for the interim transfer station. The total capital cost for all three phases is estimated at S Operations and maintenance cost based on one year of operation for each phase are S_ for Phase One, S 'for Phase Two. and S for Phase Three. Operations and maintenance costs increase as the incoming volume of material increases. i , Operations will begin as soon as possible after approval by the County Board of Supervisors and by other regulatory agencies. The demonstration project will operate until the opening of the permanent waste recovery and transfer station. At that time a full-scale composting operation is envisioned with processing operations performed at the permanent station site, and composting to remain at the East Parcel location. Estimated Tons per Estimated Tons per Annual O & A4 day (Input) year (Input) Cost- Phase One 20 5,200 $------ Phase Two 50 13,000 S------ i Phase Three ` 100 26,000 S------ '" Based on 5 days per week- operation. Each Phase may not operate a full year before moving to the next phase. JOE: 90015), 12/26/90 ii TABLE OF CONTENTS Executive Summary i 1.0 INTRODUCTION l-1 1.l Objectives 1-1 1.2 The Integrated Management Act of 1989 1-1 1.3 The Compost Process 1-2 1.4 Acme's Interim Transfer Station 1-2 1.5 Yard Debris at the Transfer Station 1-3 1.6 Seasonality of Yard Debris Generation I-3 2.0 PROJECT DESCRIPTION 2-I 2.1 Collection of Yard Debris 2-1 2.2 Site Location 2-2 2.3 Feedstocks 2-2 2.4 Site Requirements 2-2 3.0 PROCESSING EQUIPMENT REQUIREMENTS 1 3.1 Phase One ; 1 3.2 Phase Two 3.3 Phase Three 3-4 3.4 Summary 3-4 4.0 PROJECT COST .4 4.1 Required Equipment 4-1 4.2 Market Revenue -1 5.0 PROJECT MANAGEMENT 5-1 5. 1 Monitoring and Evaluation 5-1 5.2 Public Education and Promotion 5-1 5.3 Backyard Composting Demonstration Garden 5-1 5.4 Regulatory Issues 5-2 5.5 Water Sources and Conset-vation 5-5 6.0 MARKET DEVELOPMENT 6-1 6.1 Market Assessment 6-1 6.2 Composting Research Projects 6-1 APPENDICES Appendix A: Technical Assumptions and Information A-1 Appendix B: Equipment to be Purchased B-1 Appendix C: Backyard Composting Demonstration Garden C-1 Appendix D: Northern California Compost Operations D-1 JOB: 9001.5:{ 1.2/25/90 t SECTION 1.0 INTRODUCTION Contra Costa County's land use permit for Acme Fill's transfer station project, Condition 12.6, requires Acme to propose and implement a demonstration project for composting a portion of the organic material brought to the station. To fulfill this requirement, Acme proposes to develop a composting demonstration project on its 97-acre East Parcel landfill by using yard debris currentlyhauled for disposal out of the County. Operations will begin as soon as possible after approval by the County Board of Supervisors and other regulatory agencies. It will operate until the opening of the permanent waste recovery and transfer station (Mid 1992). At that time a full-scale composting operation is envisioned with sizing and screening performed at the permanent station site. 1.1 Objectives The objectives of the compost demonstration project are: • To generate. operational, economic, and environmental data on.municipal yard debris composting • To increase public education on and awareness of the benefits of cornpostim, • To assess markets for the several possible composts and. by-products of a full-scale operation and to develop markets for these products • To develop composition data for yard debris received at the transfer station To provide a unique opportunity for the County and participating municipalities to compost on a collective basis to comply with the ambitious.recycling goals of AB 939. 1.2 The Integrated NN"ante rnanagernent Act of 1989 The California Integrated Waste Management Act of 1989 (AB 939) requires a comprehensi%le reorganization of California's waste management process. F--ach city, and each county for its unincorporated areas,. must prepare, adopt. and implement a Source Reduction and Recycling JOB: 90.015X 12/.26/90 1-1 A` Element of the new County g g Integrated Waste Management Plan. This element will identify how jurisdictions will divert 25 percent (by 1995) and 50 percent (by 2000) of the solid waste stream from landfills through source reduction, recycling, and composting as mandated by AB 939. Composting yard debris will be a major factor in these efforts. Because there are no operating composting programs of significant size in the County at this time, an Acme project.will become a major resource for the central County. 1.3 The Compost Process Composting is a waste management technique that uses the natural biological decomposition of organic materials to reduce waste volume (up to 5 to 1) and to produce a usable end-product. Composting methods can be applied to diverse materials, including vegetative debris, sewageP. sludge, and mixed municipal waste. Current AB 939 regulations define yard waste as "any wastes generated from the maintenance or alteration of public, commercial or residential landscapes including but not limited to, vard clippings, leaves, tree trimmings, prunings, brush, and %weeds." Acme's composting demonstration project will focus on yard debris that are easily separable from the solid waste stream. Several methods are used to compost yard debris. The simplest methods pile organic materi�s and let them decompose for 1 to 2 years. To reduce the period of decomposition, more !� sophisticated methods concentrate materials in elongated piles (windrows), monitor and adjust the temperature and moisture content, and aerate the windrows using specially designed machinery. Reducing decomposing time depends on appropriate carbon to nitrogen ratio, proper moisture levels, and frequent turning to provide sufficient aeration. Generally, proper windrow composting can result in a final product in 16 to 24 weeks. 1.4 Acme's Interim Transfer Station Acme currently operates an interim transfer station on its landfill property located 4 miles east of Martinez. The station provides temporary transfer capability for municipal solid waste (MSW) while the permanent waste recovery and transfer station. is developed. The permanent JOB: 90015X 12/26/90 1-� J waste recovery and transfer station is proposed to begin operations by July 1992. Since start-up, the interim station has received an average of 940 tons of mixed municipal waste per day, on a seven day per week basis. Refuse traffic enters the Acme facility using the access road off Waterbird Way. Prior to reaching the scale and pay-booth facilities, users may use a recycling center for their newspaper, cardboard, glass, aluminum cans, magazines and plastics. After the scale and pay-booth facilities, vehicles pass wood, yard debris, and concrete salvage yards where loads rich in these materials are unloaded. Currently wood and yard debris are periodically crushed using a track- mounted vehicle and shipped off-site to be chipped and later sold as wood waste boiler fuel. The concrete is used for roads, pads, and drainage areas on the Acme site. After passing the salvage yards vehicles proceed to the transfer station for further unloading. The waste is inspected for hazardous and recyclable materials, crushed, loaded into transfer vehicles and hauled out of county. 1.5 Yard Debris at the Transfer Station In the summer of 1990 a preliminary waste composition analysis conducted at Acme determined that about 19 percent of the waste received, or 18O tons per day (tpd) consists of _yard debris. Although the maiority of this material arrives in mixed municipal loads, some does arrive in clean easily segregated loads. 1.6 Seasonality of Yard Debris Generation Northern California enjoys a year-round growing season. Incoming yard debris is constantly. generated, with a peak in the fall as deciduous trees lose their leaves. In winter, most yard debris comprises woody prunings from fruit trees and ornamental shrubs. The holiday season brings an influx of discarded Christmas trees, which are often segregated from composting operations or composted separately due to their high acid content. Spring and summer months bring a varied yard debris mixture, including cut grass, shrubbery prunings, tree branches, and garden residue_. JOL: 90015X . 12/26/90 1-3 SEC•i'ION 2.0 PROJECT DESCR;1'TIO>\ The compost demonstration will be developed in three distinct phases. Phase One is designee to use, to the extent possible, existing equipment at Acme. Phase Two will increase processing capability by purchasing additional equipment, and increasing staffing. Phase Three further by extending the hours of operation to include a second shift. increases processing capabilit} 2.1 Collection or Pard Debris A successful program will depend on clean segregated yard debris arriving at the transfer station. separate frons the mixed refuse. Acme does not collect waste, but receives it from.both self and franchised haulers. Therefore, Acme must coordinate the separate collection of y<<rd debris A'iti the various haulers. Segregating yard debris from the mixed -,aste stream will involve detailed discussions with area haulers to collect yard debris separately: Some haulers may be required by their franchising agencies to provide separate collection of yard debris; others may anticipate this need and.want to experiment with various collection methods, includin; providing containers or carts: others may not want to participate at all. The more cootWration provided by haulers the easier it will be for Acme to serrerate the yard debris it receives. Acme has begun discussions with one local hauler interested in providing curbside yard debris collection for its customers. Although discussions are ongoing. Acme envisions assisting the hauler in the purchase of collection bags (either Kraft paper,' lute. or other bags tested during the demonstration). The hauler would be responsible for bar distribution at a select location to residential customers. Full bars would be either commingled with other refuse or collected separately on normal trash pies:-up days. If commingled, compost proiect personnel would separate the bags after true}:s are unloaded at the transfer station. The bags would then be hauled to and unloaded at the compost site. ' Kraft bags are estimated to cos: between S.30 and S.45 pc, bag dcp-_ndith2 o;l the ouanti:\' purchasLd. 2.2 Site Location = J • - Figure ��_1 shows the enure /acme property-, hlghhtc•htlnn the last Parcel L-andfill. The compost project'will be located roug}�ly in the center of the Last Parccl. Incoming vehicles will proceed as they do now, except that those which are hauling rich loads of yard debris will be direc(ed to unload in the staging area. Vehicles hauling mixed loads will unload their material at the transfer station where compost project Personnel will segregate the yard debris. Figure 2-2 is an enlargement of the East Parcel which shows the compost area relative to the interim transfer station. Figure 2-3 shows the proposed layout of the site. ■ 2:3 Feedstocks The compost site will accept all types of yard waste as defines In AB 939 regulations. I arge logs or stumps which cannot be processed will either be- sold to a biomass-to-energy plant, or . sent for landfill disposal. Large concentrations of palm leaves or other vine-like material may be removed an transferred as they can cause increased equipment maintenance and downtime. Eucalyptus and other exotic plants may be segregated and composted separately. (Eucal.%vus contains a substance which can inhibit plant growth in some saccics.) The 97-acre East Parccl �1ioKs more t:a;i su :icient arei; to store anyor all of the above materials. The w'cx)d wastc recovery one.—at"Imn is not anticipates to decrease due to cornoostirig 000rations. 2.4 Site Requirements The compost sit:plan for Phase One is shown in Figur'c -_. The processing arca will be stabiiized using a gravel base. The. first phase of the Proicct will require about three acres. La ter phases wiil need more land. as the incoming material is increased, Phase Two about 7 acres and Phase Three about 15 acres. v03 . 9001.,.. 112 /26 /co cC -- l 00 f _ N Fy Cj A/ Q U •� ami � S d u d cn 1 o e 0 LN • -.— '-- - �` •�" ;.i� C�111 1 - I• /� 3 _ . .�'� /;/;;- ;•,.� i" I '1=;ill ." � .. �I' )..� � .oQ. •� //li{f; l;i, ', ,rliij�(J%fl��i,l,� .-. - - .� 3 f u• i 1. �'L;m<�.�� -�..;:��,r,`i '� II W J � _ P A C H-EX 0-C-R. ... Al i 1 `. � PIC .. < ( < t .�.a ::::I: /tel < < < t <�< < < < < < .••.•• • '• < I I I < I <.t < < . � t < t a < t t t a t a t t •:•i::;:::;•: ... :.:.:.:.:.:: ,. �•:. ,:: :. pt ry 1 J C cn 4j�(/ Encn J r N^�' P4 SCJ 0.0 1 � N • M GV _ P4 i _ t ri ti o • ;f4ftil�lZ�ifl .�� •1f"r r•:�' O cr h V , ' o E cv ,.vim Co o O U its Xrx. o C y O T N Rnt �,�• �•,, _:big � � �Y':i•E >' • A C4 I C 9 j5 CJ = 1 . SECTION 3.0 PROCESSING EQUIPMENT REQUIREMENTS I This section describes the anticipated processing equipment which will be used for all phases of lthe demonstration project. Each machine's capabilities and limitations are summarized below. More detailed information and major assumptions used for the project are contained in Appendix i' A. Table 3-1 describes the parameters for processing equipment and required personnel by phase. 3.1 Phase One The plans for Phase One are to process an average of IS to '?I tpd of incoming var d debris. The ..ill be -reprocessed tisinc he2vv-duty ti:`: grapple arra feeder. (For in:ormation retarding recommended e refer to Appendix B.) . This configuration was chosen for several reasons: the grapple arm operator will have time to separate conta-urinates 'rom yard debris prior to placement in the grinde-; materials will be cleaner because the grapple w ill put less soil into the grinder; the grapple ill free the wheel loader and operator to perform other tasks: and loading the grinder wi:h the loader would reauirc. a dedicated machine b,-,--use. tnis op•�r::tlon recu:res constant attention. The project will. .use an existing rubber-tired wheel loader currently owned by Acme. To increrse its efticiencv, a 5-cubic-,•ard bucket will be purchased for the loader to replace the -1,mstinc 3-yard bucket. The proiect will u 7.t an existing Acme-owned 4,000 gallon water truck to add water to windrows as they are being constructed and seven times durinE a b month compost Cvcle. 0) CZ O E a) c) c) a) c) co E E E E E L c0 r' cz =3o _ O _ F O U) cn i C) v, C\j O > > .o p T N N L o O \ LO Q) ��11 �~'' ��11 O J O (D V V@) V Cl) CD Ci. Q) — ON ON ON (D o cD N N N CO C7 � C) C) Q � N J 0) CLS C.) r—) C) � E 2 E E E O 0) U) o o N 3 ►— co a� o o _ O cn O o C) L(i o CD LO L o � Ua � GGGU� LO O � O O c� O 1 C CIO CC) CT) C i C) C) +[J cn cr, G) C) C M r Q) CZ CL's (a) G C) G p . . cn v, r v) E .= . ra U O v Z) — -80 CD CD CD _ C) J 7 GCGGGG@- r— O O O m (D L b tT C N N — C^ C) � C• r C c: > c c c) I p r 0 v L — G _G CD LL O O N r C G L c r CV O O C r p G C C^ L7 L7 L7 O I _ - r C: L^ Lr. C C: v: CJ• v C; G C. .C) (� _ L o r G C^ C2 r r1 C) C7 c — _ o C-) a C) Lf) C) c cz — ^ G — cz p U — = C— !— C LD c' L; L C ti Different models and types of screen plants will be tested during Phases One and Two. A mode] should be chosen and purchased by Phase Three. Screening will be accomplished in batch process rather than on a daily basis. It is likely that material will need to be screened only once. During Phase One the advantages and disadvantages of screening both before and after windrowing will be evaluated. During Phase One different models and types of windrow turning machines will be tested and evaluated. A model should be chosen and purchased during Phase Two. The windrows will b-- turned eturned about every three weeks depending on moisture levels. A trommel screen could be used to separate contaminates from the incominL, material. While a trommel is a very effective tool. the costs are vcry high (trommel and associate.; corwevors are estimated at S ). Acme will need to evaluate and judge the contamination i,zvel o; incoming yard debris in order to consider tine purchase of a trommel screen. Other less- expensive methods of decreasing contamination include increasing promotion and education efforts.. and increasing manual or visual inspection of the received vard debris. The purchase of a trommel screen may be considered in the later Phases of the demonstration proiec! or for the permanent .vastc recovery Lnd transfer station. During Phase One. the single wheel loader will be the limiting factor, limiting aroiwt throughput to about 20 tpd of yard debris. 3.2 Phase Two Phase Two will increase the throughput of equipment under used in the Phase One p.o gram. A similar whe--1 loader with a 5-cubic-yard bucket will be purchased prior to start-up e Phase Two; however, before a se—cond load;:r is purchased. a loader capable of handling nine cubi- yards will be evaluated as a means to further i�lcre-ase efficiency of the operation. A second loader will more tt;an double the cvstem capacity, b:�cause each loader could do SD�:Clric Jobs. less travel time will be required. and the job cvcie time could be decrc_,scd. Material throughput will be increased to about 45 to 50 tlx:. The increased tonnage will require additional water truck trips and increased use of utility personnel to separate increased amounts of bagged yard debris from the unloading area. The tub grinder will be operating at or slightly below its rated capacity. In Phase Two the water truck will be the limiting factor. 3.3 Phase Three Phase Three should double the throughput to about 90 to 100 tpd. With respect to equipment utilization 'the preferred option for Phase Three is to extend the hours of process operation, which would give a linear increase in throughput with no additional capital expenditures. The increased cost would bea combination of increased operations and maintenance cost, together with an increased depreciation on the capital equipment, and potentially increased do,.vnunle because parts will wear out faster than with a single sllift operation. 3.4. Summary There. is no set sch:dule for im.plemznting each phase.. The proiect is designed so that shifting from one phase to the next d-opends on equipment capability and operating• exyerience. Hauler oa Lieination and ccmPost markets =.il also have a .-L,.:io.- effe t. To tiie extent possibli, machinery hes Dec^ r'ccommended that wiill be usef 1 iii t1i Iuli-S�dle waste reco�'er\' ane liansIer station, in an effort to reduce total capital costs. SECTION 4.0 ESTIMATED PROJECT COST Expenditures for the compost project include capital cost for the necessary equipment, and operation and maintenance cost. Initial capital outlay requirements are as follows: Phase One is estimated at $ ; Phase Two is estimated at S ; and Phase Three is estimated at $ Total capital outlay for all Phases is estimated at S Operating and maintenance cost (based on one full year of operation) for Phase One is estimated at $ Phase Two is estimated at S , and Phase Three is estimated at S Operations and maintenance costs will be pro rated based on the percentace duration of a given phase during the year, and then combined for an annual total.. Table 4-1 summarizes both capital and operations and maintenance costs for all three phases. If the proposal is approved by the Board of Supervisors, project costs wouldbe incorporated into the rate-setting process for the.interim transfer station. 4.1 Required Equipment Acme owns most equipment necessary to operate Phase One, including the wheel loader and water truck (refer, to Table 4-2). A tub grinder must be purchased. The mechanical screen, a windrow turner, and wastewater tanks will be rented during Phase One. Based on the results and experience gained in Phase One Acme will consider the purchase of a windrow turning machine, and a second wheel loader with a S-yard or possibly a 9-yard bucket. Acme will continue to rent a screen. plant, and the wastewater tanks in Phase Two. In Phase Three it is envisioned that Acme will purchase a screen plant. 1 J0B.: 90015X 12/26/90 4-1 Table 4-1 Estimated Cost by Pliasc Phase.One Phase Two Phase Three CAPITAL Tub Grinder Wheel Loader 5 cu. yd. bucket Water Truck Screen Plant Windrow Turner Monitoring equipment Water Connection Costs Demonstration Garden Site Prep(d) SUBTOTAL(e) 0&M Personnel . Equipment Maintenance Equipment Rental Technical Consulting Laboratory Testing Market Assessment Marketing(f) Public Education Research Collection Baas SUB,TOTAU-) TOTAL Notes: a) Purchase of second wheel loader. b) Assumes rental costs at S per month, to be used 6 months out of 12. Cost is included in O&M under equipment rental. c) Assumes rental costs at S_ per month for 12 months. Cost is included in O&NI I under equipment rental. d;) Site preparation includes a 6-inch gravel pad for the processing area. e) Capital costs are added, regardless of timing of phases. Total capital cost required for all phases is S f) O&M costs are pro rated based on the percentage duration of a given phase during the year and them combined for an annual total. g) Nlarketinyg cost will, when possible, be offset by sales commissions. Table 4-2 Existing and Required Equipment Phase One Phase Two Phase Three Existing Wheel Loader Equipment: Water Truck Purchased: Tub Grinder NVindrow Turner Screen Plan: 5-vard bucketN�'t�eel Loader Rented: Wastewater tanks NVaste\vater Tanks NVast--water Tanks Screc-n Plant Screen Plant Compos: Turner 3O:_ . 900 1 12 26, AGO 4.2 Market Revenue While Acme expects the compost produced from the dcmoristration proiect to .7c marl;ctable, offsetting project costs with projectcd revenue is considered premature at this point because of the unkno--vn,nature of loc�ll compost markets. Actual revenue from selling compost (minus any sales commission) will be used to offset project cost in an effort to reduce the overall costs o the demonstration project. SECTION 5.0 PROJECT MANAGEMENT 5.1 Monitoring and Evaluation A compost mass must be constantly monitored to achieve maximum effectiveness and to prevent adverse biological conditions from developing. Acme proposes to monitor its windrows daily for temperature and moisture levels. The compost will also be tested periodically for nutrient availability, carbon/nitrogen ratio, conductivity, total organic content, micronutrients, physical substrate, pH, and final stability. Heavy metal contamination analysis will also be undertaken. 5.2 Public Education and Promotion Public education and promotion are important parts of any waste management strategy, especially composting. An effective public education and promotion campaign will help ensure low contamination rates, high participation, and successful market development. As part of the demonstration project, a public education and promotion program will be develop•:d. Public education efforts may include ads in local newspapers and nurseries, and fivers inciuded «'ith the ba- distribution program to targeted'resid:nts %within the dcnnonstration areas. 5.3 Backyard Composting Demonstration A backyard composting demonstration garden (see Appendix Q will be provided as part of the demonstration project and will show residents backyard composting technology, the fundamentals of the biological process. and the inherent soil-building and water-retention qualities of compost. The detailed planning required for the garden will be done during Phase One. JOB: 90015): 12/26/90 5-1 5.4 Regulatory Issues Because it is an addition to an existing solid waste facility, the compost project will not require new permits from regulatory agencies. However, State, regional, and local agencies will review and may require modification of existing Acme permits. These agencies include the Regional Water Quality Board, the California Integrated Waste Management Board, the Bay Area Air Quality Management District, and the County Health Services Department which serves as the Local Enforcement Agency. The project's location on a landfill presents many positive. benefits. The site is well buffered from residential areas because of its remote location. There is more than sufficient land available for the future full-scale project. The staff, scale house, and capability to handle substantial truck traffic already exist. Also, haulers and residents are familiar with the site's location. One identified concern is leachate and surface runoff management. Very little information exists on leachate and/or surface runoff from composting leaf and/or yard debris piles. If properly designed and operated, these facilities should not produce leachate. From fieldobservations at several compost sites BVA believes that very little water from rain percolates through piles to creates leachate. Most moisture is either absorbed by the pile, runs down the side of the pile, or flows in.the aisles between piles. A dirt berm, 1 to 2 feet high will be placed around the windrow area to intercept water before it runs onto the compost pile. The California Integrated `'Waste Management Board has expressed concern about the quantity and quality of water which may enter the landfill. Acme is planning to develop test areas as part of the project. The test areas will be capable of evaluating both the quantity and quality of both -surface and subsurface wastewater flows. The demonstration will provide information on both of these issues. Table 5-1 is based on seven months of monitoring of leachate and surface runoff water at a yard debris compost operation in New Jersey. This study and others, indicate that, in general, the leachate and surface runoff water do not pose adverse environmental impact. To control JOL: 90015X 12/26/90 5-2 e Table 5-1 New Jersey Yard Debris Runoff/Leachate Characteristics Element Units Average Range Number of Value Samples per Month BOD(a) mg/1 56 12-98 7 COD(b) mg/1 134 32-210 7 Color C.U. 233 14-385 7 Dissolved Oxygen mg/1 6 1.2-75 7 Total Coliform mpn 11 2-19 7 Fecal Coliform mpn 0 0 7 Turbiditv j.u. 62 7-180 7 Suspended Solids 80 21-130 7 Total Dissolved Solids mg/l 339 79-460 7 Total Solids mg/l 431 194-590 7 pH - 7.0 6.0-7.9 7 Nitrate mg/1 15.3 0.4-4.6 7 Ammonia mg/I 0.7 0.01-2.0 7 Chloride mg/1 63.4 7-102 7 Phosphate mg/1 2.4 1-3.5. 7 Notes: a) BOD = Biochemical Oxygen Demand ' b) COD = Chemical Oxygen Demand Source: Personal Communication, Joel Alpert, E A Consultants, December 1990. i JOB: 90015X 12/26/90 5-3 wastewater flows, Acme proposes to place compost windrows parallel to the slope of the landfill. Any surface water runoff or leachate within the windrow will be channeled to the lower end of the windrow and collected in a portable tank. Collected water will be analyzed before being reused in the windrows, used for dust control, or discharged to the sewer. The windrows will be managed in 'such a way that water inputs are carefully monitored to fit water requirements and to prevent any excessive leachate generation. 5.5 Water Sources and Conservation The use of compost as a soil conditioner is a well-documented form of water conservation. Unfortunately, making compost is fairly water consumptive. Acme currently has access to potable water from the Contra Costa Water District (CCWD) at the landfill. Potable water from the CCWD will be the primary source of water during the demonstration Acme is also located near sources of raw water from the CCWD canal, and reclaimed water from the joint CCWD and Central Contra Costa Sanitary District reclaimed water project. Uses of these water sources will be explored during the demonstration project. JOB: 90015X 12/26/90 5-4 = SECTION 6.0 MARKET DEVELOPMENT 1 r 6.1 Market Assessment f The proposed demonstration program will contain a market assessment . and product use {{ demonstration component. The market assessment will evaluate those factors that can assist Acme in determining the best approach for marketing or using the compost as landfill closure material, as a mulch on municipal projects, oras an erosion control medium. These include size and potential demand by the public and private sectors for compost or amended compost products. It will evaluate the seasonality of demand, transportation requirements, potential for competition of alternative composts, potential revenue for. various products, and cost of transportation. The identification of appropriate end uses. and assured markets during Phase One will be instrumental in designing the production details of ensuing phases. ' Product use at the backyard composting demonstration garden will illustrate the types of products that can be produced and serve to stimulate public interest in buying the product. Market development will require on-going laboratory analysis of the compost produced. In this wav the constituent makeup of the compost can be matched with potential markets and the compost blended to meet market specifications. 6.2 Composting Research Projects Research is a necessary aspect of any demonstration project. Acme has budgeted for and intends to conduct a number of research projects to test various other organic materials as part of the composting program. Easily diverted wastes will be targeted for research projects that could lead to inclusion of these materials for development in the later phases of the project. Projects may include composting Christmas trees, blending ash from wood-fired power plants and organic jOB: 90015): 12/26/90 6-1 portions of construction and demolition debris (e.g., sheetrock), and composting food wastes, mixed waste paper, or sewage sludge along with yard debris. Any and all blending performed by Acme will be done on-site. Any material to be blended or composted will be subject to laboratory as well as regulatory analysis and approval, and to market specifications. Research monies will also be used to try different compost processes and develop products for different markets. Er J JOB: 90015): 12/26/90 6 APPEnTDIX A TECHNICAL ASSUMPTIONS AND INFORMATION The following assumptions were made in planning the compost project. While these assumptions are sound, they are subject to change based on availability of compostable material, operating experience, regulatory requirements or other unforseen details. { 1. Wheel loader { The Project will use an Acme-owned CAT 950 B Wheel Loader with a new 5 cubic yard bucket. It is assumed that the loader will be available, on average, 7/8- of the time with the other 1/8 required for maintenance, refueling and other non-productive uses. Because of this 7/8 availability factor the wheel loader will be available 7 hours of each 8 hour shift. It is assumed that on average each bucket load activity will require 3 to 5 minutes to complete. Some activities such as loading trucks can be done more rapidly, whereas others such as reforming windrows .v111 be slower. Additional time will be required to go from activity to activity and emergency situations will arise which can decrease 'efficient loader operation. Based on the above assumption. the loader can perform 84 cycles per eight hour shift (usin; the more conservative 5 minutes per cycle), or the loader can move approximately 420 cubic yards of material per day. The wheel loader will perform the following functions during each work day: 1. Move incoming yard debris from unloading area within reach of the tub grinder's grapple. 2. Move processed yard debris from the tub grinder outfeed to windrow area and build windrow. Potentially a roll-off or dump truck could perform this function, but would require an additional operator. Costs for these options will be evaluated during Phase One of the demonstration. 3. Break down piles periodically for adding moisture and reforming windrows. This activity likely will occur once every 3 weeks; piles will be composting for a 4 to 6-month Period. JOB: 90015X 12/26/90 A-1 4. Break down piles after 4 to 6 months of composting to move to storage. 5. Feeding the compost to a screen hopper. 6. Moving the screened compost to storage. 7. Loading the screened compost onto trucks. The volume at each step will be different, as will the weight due to processing steps such as grinding, water addition, etc., and volatile solids loss during composting. The following is an attempt to normalize the volumes as a fraction of the initial function i.e. moving yard debris to the grinder: Processing Step Volume Weight (cubic yards) (Pounds) 1 1.0 400 2 0.72(1) 400 3 1.26(2) 1400(2) 40.18(2) 200('?) 5 0.18 ''00 6 0.18 200 7 0.18 200 Total 3.88 3000 Notes: 1) Based on shredded, mixed, yard debris. 2) Based on average decomposition of yard debris multiplied by 7 piles (.18 * 7 = 1.26) and (200 " 7 = 1400). For each ton of vard debris processed per day, 5 cubic yards of incoming material need to be processed or a total of 19.5 cubic yards total need to be moved by the wheel loader. Thus a loader could handle approximately 21 tons of yard debris per day. JOB: 90015}: 12/26/90 A-2 2. Tub Grinder The project is currently evaluating 2 manufacturers of tub grinders. For the purposes of analysis s the project assumes using an RSI tub grinder with a grapple arm feeder. A grinder with a grapple feed is recommended to allow the operator to separate contaminates from the yard debris prior to placement in the grinder. The material will be cleaner since the grapple will put less soil into the grinder, and lastly the grapple will free the wheel loader and operator to perform 1 other tasks. Loading the grinder with. the loader would require a dedicated.machine since this operation requires constant attention. Based on experience elsewhere, an availability factor of I . 75 percent for the grinder is assumed. The downtime is a combination of unclogging the screens below the hammers, unwinding vines or long thin branches from rotors, removing hammers, replacing hammers, and other mechanical problems. The tub grinder is rated for 30 tons per hour when fed wood waste; it is much slower and more difficult to grind _yard debris due to its low density. A factor of 50 percent is applied to the 30 tons per hour rated capacity.to account for this. Therefore, in an eight hour day the grinder can process approximately 96 tons of material. At an input bulk density of 400 pounds per cubic yard, 480 cubic yards of material could be processed per eight hour shift. 3. `'Fater Truck The Project will use an Acme-owned 4000 gallon water truck to add water initially to the incoming yard debris as it is placed in a windrow and then seven times during the life of the compost cycle. To calculate water requirements it is assumed that the water content will be approximately 40 percent each time water is needed (i.e., if monitoring shows a water content of 40 percent, the piles will be watered to increase moisture levels to 60 percent). Thus the initial pile of 21 tons will be 8.4 tons of water and 12.6 tons of solids at 40 percent moisture. An additional 10.5 tons of water (21,000 pounds) will need to be added to bring moisture content up to 60 percent. The other seven turnings would require a total of 77,000 pounds of water. The decreased demand is due to biodegradation during the compost cycle. Thus a total of 21,000 plus 77,000 pounds, or 98,000 pounds of water would be required. The 4000 gallon water truck contains 32,000 pounds of water. Thus slightly over three trucks of water per day JOE: 90015X 12/26%90 A-3 I would be required for Phase One. Phase Two increases production by a factor of 2.6, which multiplies to 254,800 pounds of water. Using the above assumptions, (2.6 multiplied by 3 trips per day equals 7.8) Phase Two will require approximately 8 trips per day. Phase Three would i require twice the amount of water in Phase Two, approximately 509,600 pounds of water or 16 trips in two eight hour shifts. 4. Screen For theu ses of analysis it is assumed that a Read Screen-All Model RD-90B will be used, P � y although smaller models and other manufacturers will be tested during Phase One and Two. Based on experience elsewhere, an availability factor of 60 percent is assigned to the screen. The 40 percent downtime is caused by hopper bridging, screen cleaning and other miscellaneous tasks. The rated capacity of the Model RD-90B screen is 50 - 60 cubic yards per hour with the compost-like materials at 60 percent solids. . (Wetter materials screen slower, whereas drier materials screen faster but can cause dust problems). A 21 ton per day compost facility will produce roughly 20 cubic yards of compost per day. Screening will be accomplished in batch process rather than on a daily basis. Acme will investigate screening the material both during and after windrowing. Screening the material both prior to and after windrowing will increase the utilization of the screen to approximately 40 to 50 percent. Summary Based on this initial analysis in Phase One, the single wheel loader will be the limiting factor. This will limit project throughput to 21 tons of yard debris per day. Phase T•,k•o will be designed to increase the throughput of the other pieces of equipment which were being under used in the Phase One program. Either an identical CAT 950 B Wheel Loader with a five cubic yard bucket will be purchased, or a larger loader capable of handling nine cubic yards will be purchased. JOB: 90015Y. 12/26/90 A-4 ' The use of a similar sized loader would more than double the system capacity since each loader 1 could do specific jobs, less travel time will be required and the job cycle time can be decreased from five minutes per cycle to four minutes per cycle. Fifteen cycles per hour per loader or 210 cycles per eight hour shift will be accomplished (assuming 7/8 availability factor). This is equivalent to moving 1050 cubic yards of material per day. The combination of two 950 B loaders with 5 cubic yard buckets can handle 54 tons of yard debris per day. The addition of the second loader will therefore increase efficiency by a factor of almost 2.6. The demand on all other pieces of equipment would be 2.6 as great as in Phase One. In order to process all 54 tons of incoming yard debris the grinder would have to handle 216 cubic yards of incoming yard debris. This is within the capability of the tub grinder. The water truck would have to male eight trips per day or one cycle per hour. This should be within the capability of the truck. The screen would have to process 52 cubic yards per day which is within its capacity. As shown in Phase Two the addition of the second loader will make the water truck the limiting factor. Addition of any additional loaders will not necessarily decrease cycle time any further but would require the addition of a second water truck. The preferred option for Phase Three would be to extend the hours of process operation. This would give a linear increase in throu_hput with no additional capital expenditures. The increased costs would be a corr`;ir.ation of increased operations and maintenance costs. together with an increased depreciation on the capital equipment and potentially increased down time as parts will wear out faster than with a single shift operation. i JOB: 90015}; 12/26/90 A-5 I - APPENDIX B - 1 EQUIPMENT TO BE PURCHASED t t Tub Grinder 1 The Project planners are currently considering two similar tub grinders. The first, the RSI Tub Grinder was recommended because it is a heavy duty industrial machine built to handle a heterogeneous mixture of municipal yard debris. Unlike smaller grinders, the RSI was built for municipal yard or wood waste, and is not merely a scaled up farm machine. The machine is less likely to be prone to high maintenance and down time costs associated with other tub r i grinders. This machine is capable of handling more than the projected 100 tons per day, and will likely be part of the full scale composting operation. An attached knuckleboom grapple will allow one person to operate the loading and processing operations, The second tub grinder is the Fuei Earvestorwas«: : ::_ .:,: ::: e:; also equipped with a grapple arm feeder. The WHO is also a heavy-duty machine built specifically for processing wood or yard debris. V4"HO grinders are used by the majority of composting operations in ?northern California and are successfully demonstrated in other states as well. Although manufactured in Colorado. Fuel Harvestor maintains a parts warehouse and maintenance personnel in California. The final purchasing. decision v.-ill be made considering rated throughput, availability of parts and service, financial arrangements and demonstrated ability. Screen Plant The project will evaluate and test different available screen plants during Phase One. Two of the screens to be tested include a Rover Mark II, and a Read Screen-all. The Royer Screen is a heavy-duty screening system capable of separating large volumes of compost into various sizes. JOB : 90015): 12/26/90 B-1 ' L The Read Screen All is also a heavy duty screen more than capable of processing chipped yard debris. Windrow Turner The Project will evaluate and test several models of windrow turning devices, including a Scarab. Acme is interested in testing a turning mechanism that could be pushed or pulled behind, or alongside one of its vehicles. Several different models are show_ n in the following literature. Wheel Loader Acme currently owns a Cat 950 B loader with a 3 yard bucket. 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Et�r: u. a }� r5;P " a•\c�"' :{�; i•. t -sem.; : $ .. ;r�ti•4}!,� ?t( w r,S 3S';•t:a t y: �, yr Oil `.Ca. f ,^. `,fir` :z ': ,. r' + t; ;� :Y -':� 5. ..1.�?i+.•. : - WOOD WASTE Fuel Harvesters TUB GRINDER Equipment August 1989 L i ' Des.0rip'l ion: ::•::r; a. y The Wood Wcste Tub Grinder is designed to con vert wood waste into useful end products. It efficiently _ .1= .. 1 processes a wide variety of y ,� +.•/ ,, woody materials into useful ; 4 . ,�;k cn^ saleable wood chips. _ ' ►:�:i �� ' WcsTe wood materials are u- - normally a liability, and are l usually thought of cs having _3 no value. However, with the Tub Grinner from FHF, you con now orocess woody maTericls such es ocliets, construction waste, uemolition woo-, yard waste (including es` cr e e limas up to 12" in diameter. Y x1Shr i ane en:; oroduc's include mulch and car;z• ost fOr nurseries, erosi0n control ! crounc cover Tor parks and highways _`- Ooiier fuel for cogeneration facilities, and �^�� , ,.,�� sem`- '�-•==�'=.�:,,.=-.; - :�%7a`,7•.�< ..c;' ` ` yam::: �:•_.�:i..:--'' �_-Jul'r;nc material for or sewage sluage col— - - r• - - - . The a o I ior sevincs experienced by recycling woody materials can be ' suUstantiu!. You no longer hove to pov �--- hlg --um-'n- fees. and you save the ex.- Dense of truci:inc high vo!ume materials. S �,y recycling instead of dumping, you hel,_-'� sove the londfili for non-recycleable meter11c!s: Anrd finally, you can realize a orofit cy sel!ing the end product locally. ;. CHOICE OF FOUR TUB ROTATION SPEEDS WITH TORQUE LIMITER.AND ELECTRIC � /WOOD CLUTCH OVERLOAD SHUTDOWN WASTE IS EASILY LOADED INTO THE TOP OF THIS 1'2-FOOT DIAMETER TUE CAT 3408 W!TH 503 DIESEL HORSEPOWEP PROCESSES 50-125 YARDS OF WOOD WASTE PER HOUR \ i ra I ELEVATOR FOR LOADING / OVEN 13 k HIGH VANS (FOLDS FOR TRANSPOP,T) 240 GALLONS DIESEL CAPACITY \ IN TWO 120 GALLON TANKS / SWING OUT ACCESS PANEL TO I A!?. ACTUATED DRAKES oIJ CONVEYOR DRIVES (FOR EAS; 19,000 L°. TRUCK, AXLE OF SERVICE) i I Specii cations- ,BIO'''S: PrOuUcti0:',. Prod uct!C-I Rotes Of I\0.,% -'2 7,soe ho'-i Lenele`Jcic% fc!ced -0 ft. rJNOrGT''O !: VVeiaht D,0Z)0 ivJ. f�ant enc loader, or T'N -rnr ::GURATION: nucl:le oom with orcople. Sf_,ioncry hcmmermili in of (Oi VciC" ex.ienae :� fi. rOTcilnc ;s c-v!tv f-c. r ei� I ;"elegy ;scncroe) f ll.^. ooenlnv, c:cmeier ;2 f i. r rOc :Ci !s Sby screens I'),^ Inslce Ciai i leie' 10 r c—n merI ; , cna dischora bJ I Top of tub, neiaht 10 ft, 4 in. :naer - i-L.IJ cOnveVOr bel,. Tub ceptn 6Yinl. Product is further conveved b, 28' - iono elevator belt. I.i rl: I�.i i' 1� V � III I.i..., \ lug I IM;=il ill; Rotor: L<e,-gat , 56 in. ServiOe Di:.me`er 16 in. Designed for ease of maintenance Spead 2000 RPM and minimum downtime - cl! drive Hammers: Number in standard set GO system,s, becrinas, shafts, Gears, cncins, Swina diameter 25 in. sprockets, and V-belts are visibie. - V'�rei�ht 6 1b. accessible, and easily serviced. Fuel Harvesters Equipment Loma D.-jvr s Va;lev. C=. _ - 72 . _- QL s I. .�7, co Cc i2 _".1.: I r=te. •'I ,)� { Q'C ,' I� r:r♦. '�= ..I C `r ,'M'`. ':i •��,— '�:'�,fi UO v'_ FX. r bm O CE �: '`�'�~� ;<r,,' O Qui ti .. .. C •��1 �•-^• :` b_ ` Q!�b! O .: -� _ •A T �L U _ �•`- '�.. t�.il. •. 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REDUCES WASTE VOLUME BY 50% By composting city wastes, many communities have The Wildcat compost turner is a unit that wil! con- reduced their cost of landfill acc;uistions by reducing vert sludge, leaves and other organic wastes to va;�;- land space needed. In addition, proper composting a51e compost ana fertilizer,quickly. Up to 2600 tons a helps prepare landfills for post-landfill use. As popula- hour with a single operator. No snredder is needel. tions expand, nearby available landfill areas must rely The wildcat composter does it all. on composting to reduce increased volumes and cost. SAVE DOLLARS -You purchase only the compost turnerano us DEPENDABLE - wi:ccat has been n,,-mUf ,,-Linin? co:,-:-3s: our own prime mover. turner's for over a decade. COST EFFECTIVE - Compost in less time and Save your landfill ONE MAN OPERATION - Lono'l;fe fe,::ureS a:,o less ma:, nou- ar-as ` niakF WIIdCat a Grvfltc'Jie InVeStmer',;. DURABLE - Less moving parts, extra heavy duty flails. 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Ij '�•r. - ,- sv.:'-stir' ..¢',;•.. t`�.'w,i::..: 1 ' -' -. .t r:fir '�'r%!�t'••:,`_`;'a�_ S ' � 1 <` _ +p�'7"ut"p•T_`."_"•rK77`•�YYje!,.�„'-T.t.,.,-•,/+,^r�..,Y'�,,^rRYt..�wL+t.' ~',` 'M-' - 7s++d.a - ! i i .,.-� �_`•M1 .'+..�: 'i. �I�',t C` T.'F ',.fi'•,Z:J. •".Y�/,•tt - .'7 ~•CM, f• rY `� ;, � : The Pow'erscreen ASK II is a nlebile screening plant, r � I _ and is the ultimate result of more than two decades of design development backed uo by riaMOUS field t:.sting le provide a versatile. elflcien! system which can handle a wide vari � .;, '•`� ',�'• . ti.,r ,. 'de et" of Ilial°flat. The fl"; II fits Into the current Powerscreen prodUCI •• '�' . ;.. ' ranoe. Some of the features include a diesel/Il`rdratilic power Un", and tov: bar for ori-site movement. The W machine consists of a belt-feeder. a main conveyor. also a lkvo-deck screen unit. An additional unit has recently been introduced,namely "tile mini-shredder" attachment. This versatile attachment carr be fitted directiv on to a MCI c';i'S•�� -' n ,,,y Powerscreen Belt Fee;iar. This runoed allaclli ienf will allow a Po:�'erscreen to convert difficult materials into a saleable product. The Pov,vscreen I'M II deiivers high standards of performance that order systems simply can't MINI- meet - conllnUillO In the tradition that has [Made Tilts at.?Ch.'nen,Can be htlec or, to tr),=i3 Feeoer. Tne H,^'aul,c Svs;er;,s eas::, POVdERSCREEN the leader In its Industn'. erabred to ater to me tee re.ner:s ce .. t.1::):-Shr�oda;. TI;,.Snreooe PERFORMANCE The Poi•:erscreen MIK II :s SO _ f:o„'erec a l + desionec to drive ease:,• reriovarh_ Ic' reca;r: T r,:; Chn7:: aIID:+•5 C%:i,Ctr':r.7,-,•c.;a!5 .,, ;) Gine Or i:•:J 1,'i 60 s;ockpll:na TIPPINGG Co,';ver.'ec I^:o saleable oc,;Cts. REJc T GF.'D �•' canoe' G:s In coniunction l lilt Tne T,Dar,^ GnC,s ` the N1K P. It onk,takes ona const-uCwo c:;, a:'y ca uoc steer to v.,r,7stanc ru = CciO 0:1'J?Ianhour lOkeeOthe ooC- use ! and,nciudes l:are prates for i-ov,'erscreen MK If operaimc easv loaomc 1e1..„'.Irl:e�lance-freenydraL'I:,, h„noEC,t•:;^... li:;:n :'.,... sVS IM,V.,niC,is a feclure O1 line a!;Dv:S Even se_,ono car !c t, keecs oparaiicnai an rarseo ar,C lar^'s:Dne. iur ane [” !cn.cncr COS:S iG POP 7ABILI;Y Bance o, C: _ extra acvan.aces !r: ... _ .,', The un!-2,j: ..:i,. - '10 _I ons S'le :C PROFITABILITY ;-laxir, UM oroduction, ',nz- ?� CGo !Grscre J'i^1i':f.II %-Ill lhancr / ?'5 r-',1_'nr�;:s 12.:.O A.m er l c a n l o n S) - -' p-r no .. Tr z f:rl:; II ca:-,!;an0ie r^,::;;ria is Suc, ::S COE:. So:.. °::. 1,'00% cnl�,S. pi-,:se.Sal;a:'d Compacted c;ay. POWERSCREEN- Tr7e 1esoinc tame in D,OviC,.,�c soiuilon._ ,o scrEenin,, a^c Maller;as-nandonoPOt EP. PLANT �'C7iC mS. li Cel? _COmC/eiC /cC J,•',.7C n0 u S,C n 7C P ow_'P:"!7:,5 ,?. ushv?_'H= <<r:nC r L,E!.. - C-S G' t'�:t s' A vv!c� r0.-,--_s ' r;'S' ,:_.r7 - CCC;:^ ': C,nr . a CCC_ C":J: _. _ .. r c• C':;:'__ .. _.. sDocr;,C e0bDil�Ln ^si all= . .re:c �'., ?;,. 7crlse FOtr✓ERSCREEIJ = -, - run ..:7::47:3. ,..�:..:. .••�iia?,, � r,��• _ r••....r'r•vrK•rv,r,rarrrrra+�`'�r I i.�•�'�+-- Mi ----------------- ..T:� f •'_'l��s�[:':''_ 'JVS�..-.i^l::i.�''.' ..v�f-�(t � �~q •` •?l• � X -:r ::/.:�•• � ,.,;tea �_�,�. J+� I` h�_.i�,. pis.•.'.. 'i 1!!,�:..'.'x,.;Yi�:�1'r �� - L. - L.s..:..� "1t,.. � r :•f. , Tr• -_.a\y� I •�': ;;a;'.;�`r ..L:;;: � fir'. �. �;.�.. � I .2F._ - ^.•ci.j�a:':.: 111}•r..�tr.- ",�;.: �;:�^'::: _ .:.�� '�S y�`. crH`� - , y �Gl..t:i:.:='-tn'.^ •+'^:4:'-.5.� ,f •C4 a-v....:..a.' ..�... C:t"VEYOF EEL' 5^ Q� r8'a'^Ocie '� �l[J\•�2Q��•'}�' `.� r a., spa- r:�„• ^ f n. �Al -`_ � - - •-�' _- - . 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Screen.-All Model Ra-90B SPECIFICATIONS Overall Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . Air Height (Operational) . . . . . . . . . . . . . . . . . . . . . . 10'11• t>,1ajor Working Components . . . . . . . . . . All Hydrauitc Height (Operational) .(with Ultrafeed) . . . . . . . . . 11'4' Engine Make . . . . . . . . . . . ... . . . . . Lister, 3 cyl.TX-3 Height (Operational) .(v:ith Ultrafeed raised) . . . .1 G'G' Engine Type . . . . . . . . . . . . . . . . . . Air Cooled, Diesel Height (Travel) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 i'8' Horsepo%ver . . . . . . . . . . . . . . . . . . . . . 3G (:% 2100 rpm Height (Travel) (with Ultrafeed). . . . . . . . . . . . . . . 12'1" Approx. Fuel Consumption (8 hours) . . . . . 10 gallons Width for Hauling . . . . . . . . . . . . . . . . . . . . . . . . . 7'10' Fuel Capacity (Tank) . . . . . . . . . . . . . . . . . . .14 gallons p vVe aht . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,480 lbs. Shakerhead Decks . . . . . . . . . . . . . . . . . . . . . . 2 decks Weight (with Ultrafeed) . . . . . . . . . . . . . . . . 23,160 lbs. Screen Areas . . . . . . . . . .. . . . . . . . . . . . . . . . .10'x 6'6' Tongue Weight . . . . . . . . . . . . . . . . . . . . . . 11,460 lbs. Screen Sizes Available . . . . . . . . . . . . . . . . . . . 1/4' - 4' Tongue Weight (with Ultrafeed). . . . . . . . . 13,300 lbs. Harp Screen Sizes Avail. . . . 1 rnm-19 mm; .039'-.746 Towing Arrangement . . . . . . . . . . . . . . . . . Fifth Wheel Approx. Shaft Speed, Shakerhead . . . . . . . . 1150 rpfn Axle Weight Capacity . . . . . . . . . . . . . . . . . .22,000 11.)s. Opening for Bucket (Under Screen') . . . . . . . . . . . 12'6' Tires . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 9.0, 17.5 Cap'2city in Opening (Under Screen) . . . . . 15 cu. yds. Loader Capacity (Bucket Size) . . . . . . . . . . 3-5 cu. yds. i � I 12'6' OP TIONS: l-a,poecr: Screen, UIU2-t=eed System, Sand Skirts; Pun--h Plate Sets 4"-8° Due to the Read Corporation poiicies of continued prod uc:irr.provernen.s•so?clfl:a:ions are subiec:to cnanc_ w thou:novice or cohaa,,ion,.A!I we cnts area crox:^:a:c-. Authorized Distributor. I:-_ r1E�...i... ...2:1:.... �J V,•',.�E.^.•2�.i S:fEE, t�;;..;�`:...._. ..., ��._ f =,/. :i'J:i-�••:.'- -' APPENDIX C A BACKYARD COMPOSTING DEMONSTRATION GARDEN AT ACME FILL Backyard composting is an integral part of any effort to divert yard debris from disposal facilities. In an effort to increase participation, many municipalities across the country have developed backyard composting demonstration sites. These range in size and scope from simple self-guided walks to sophisticated gardening and cornposting centers that become information clearinghouses for a variety of programs and ideas. A demonstration site has been proposed at Acme to serve several functions. As a demonstration site, it would show how County residents could compost in their backyards; as a demonstration garden, it would explain the beneficial uses of both backyard and municipally produced vard debris compost. Planted flowers and other plants would show how compost works. The following exhibits will be evaluated for inclusion in the demonstration garden. Backyard Composting Methods Simple three-sided box: A three-sided box is constructed of bricks or lumber. The fourth side is removable for turning and removing the compost. Three-bin system: A three-bin system uses three similarly shaped bins side by side. The compost is rotated from one bin to the next as it matures. Food Digester: Several proprietary systems, widely used in Canada to reduce food wastes, are available. Worm bin: A worm bin is used primarily to compost food waste. It uses a closed box to house red worms, which consume food waste. JOB: 90015X 12/26/90 C-1 Com ost Growing Areas P 1; _ • A large grassy demonstration area using compost for lawn growth and maintenance. The :lemonstration could include self-mulching lawn mowers. i • An area of acid-tolerant plants, like azaleas or camellias for compost produced from Christmas trees. ! • An area with a variety of typical residential and edible plants grown using local soil and varying mixes of compost. Landfill Gas Greenhouse f A greenhouse which uses landfill gas to maintain a constant temperature. A variety of herbs and flowers can be grown in the greenhouse. F Public Information Areas . i Information area: A roofed area providing shade or rain protection to be used.as a place for information, presentations, and so on. Walkways: Paths lined with Acme-produced mulch. �. Finished compost: Provides compost for sale on a self=haul basis. Summary ! A more detailed document describing the site requirements and estimated costs will be prepared } prior to developing the demonstration site. JOB: 90015): 12/26/90 C-2 APPENDI3� D NORTHERN CALIFORNIA YARD DEBRIS COMPOST OPERATIONS In designing the Acme demonstration composting project several operating yard debris compost operations were reviewed. These included the Cities of Berkeley, Davis, Modesto, Palo Alto, Sacramento, and San Jose. The following is a description of each of the programs as surveyed in the Fall of 1990. Table D-1 summarizes several basic parameters of each program so that the programs may be compared. City of Berkeley The City of Berkeley currently operates a pilot curbside composting operation, involving about 10 percent of Berkeley residents. Yard debris is collected at curbside and brought to a processing site run by a private company. About one third of the material is ground up and sold directly to a private hog fuel company. Currently the remaining two thirds is ground in a Fuel . Harvester WHO tub grinder and is then windrowed. The processor has developed a marketing strategy, though they have not produced a finished compost at this time. Their volume is about I18 tons per hour. operating 6 hours a day 5 days a week. Citi• of Davis 1 The City of Davis currently provides curbside yard debris collection using the curbside 'claw' system. The material is collected and processed by a private processor using a Fuel Harvester WHO tub grinder. Brush is used as mulch, and leaves are windrowed and allowed to decompose for six weeks. . Some of the compost is sold to a local compost vendor, some is given to residents. and the remainder is used by the City's Public Works Department. The program collects approximately 350 tons per month. I I ` JOB : 90015X 12 /26/90 D-1 y a r J CJ a. i m i cz C ,y} l j_ Q CD c 3 y ✓ v { c i O C v v Ci O .. '� rC ter-. ✓ � City of Modesto ., The City of Modesto collects brush and leaves during leaf season (November to January) using the Curbside 'claw' system and packi er tricks. The brttsfi is chipped and sent to a nearby waste to energy plant. The leaves are composted using a very simple windrow method. All of the compost material is used within the Public Works Department. City of Palo Alto The City of Palo Alto began curbside collection of yard debris in July of 1990. This program is particularly relevant to the Acmeproject because the City provides Kraft bags to the residents to use in the curbside collection. 'Some of the wastes collected are added directly to the windrows while others are ground 2 Fuel Harvester WHO tub grinder. The projected volume is about 300 tons per month. The material is currently stockpiled to be used as landfill cover or being used by the public works department. The City has employed a consultant to suggest other uses and markets. City of Sacramento The largest of the programs reviewed, the City of Sacramento is currently undergoing. major expansion planning for their composting operation. Currently the City provides collection using the curbside 'claw' system. This program collects about 60.000 to 70,000. wet tons of leaves, of which they can only process about one twelfth. Compost is ground using a WHO tub grinder and windro��ed. The product is currently sold at the landfill at S 12 per yard, the rest is used for in-house public works projects. ;The expansion plans currently foresee a 40 acre site using a Iggesund screw auger to process the material. The material ill be turned using a 'Ding of the Windrow' turning machine. The City has already trademarked their final product ��ith the State of California and plans to market it through a broker and to sell to large sand and gravel operations. They project producing 'about 150,000 cubic yards annually. JOB : 90015?: 12/26/90 17-3 e City of San Jose The City recently completed a curbside collection pilot program which collected leaves using the curbside 'claw' system. The material is hauled to a private landfill company which processes the material in a RSI tub grinder and then places it in windrows. During the pilot the program processed -2.50 - 300 tons per month. All of the compost was sold under contract, to the City at a price of $8 per yard. The City is in the process of soliciting proposals for a much larger operation which may be run by the same private landfill company. City wide collection is slated for April of 1991. JOE: 90015:: 12/26/90 D-4