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HomeMy WebLinkAboutMINUTES - 03051991 - IO.1 1 TO: BOARD OF SUPERVISORS Contra r FROM. INTERNAL OPERATIONS COMMITTEE ` Costa �� .., - •o� February 25, 19 91 co = - �_� County DATE: rTq-coi N REPORT ON THE EVALUATION BY THE TASK FORCE ON COMPOST�OF ACME SUBJECT: FILL CORPORATION'S PROPOSED COMPOSTING PLAN SPECIFIC REQUEST(S)OR RECOMMENDATION(S)&BACKGROUND AND JUSTIFICATION i RECOMMENDATIONS: 1. Approve Acme Landfill Corporation' s Demonstration Composting Project, in response to the conditions of approval for the Acme Transfer Station as contained in the attached document which has been reviewed and approved by the Board' s Task Force on Compost. 2. Request the Task Force on Compost to report to our Committee on April 8, 1991 regarding the project costs for at least phase one of the Acme Composting Program Request staff from the Community Development Department (particularly Catherine Kutsuris, Sara Hoffman, Louise Aiello and Sheila Cogan) to schedule a meeting with the solid waste collection companies within the next 60 days to discuss the need for the collection companies to implement curbside yard debris collection which is separated from the rest of the solid waste stream while they are also meeting with the collection companies to discuss recycling of various types of plastics. 4. Authorize staff from the Community Development Department to work with the State Integrated Waste Management Board on the development of regulations which will define the extent to which composting materials can be credited toward the diversion requirements of AB 939. CONTINUED ON ATTACHMENlYeS SIGNATURE: RECOMMENDATIONVR ISTRATOR RECOMMENDATION OF ARD COMMITTEE APPROVE SIGNATURE :: DER SUNNE WRIGHT McPEAK ACTION OF BOARD ON March 5, •1991 APPROVED AS RECOMMENDED X OTHER VOTE OF SUPERVISORS I HEREBY CERTIFY THAT THISIS A TRUE X UNANIMOUS(ABSENT ) 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: Community Development DlY@CLOY ATTESTED Catherine Kutsuris, CDD_ PHIL BATCHELOR,CLERK OF THE BOARD OF County AdministratorSUPERVISORS AND COUNTY ADMINISTRATOR BY DEPUTY M382 (10/88) BACKGROUND: On September 25, 1990 the Board of Supervisors created a Task Force on Compost and asked the Task Force as their first task, to review and comment on Acme Landfill Corporation' s Pilot Composting Program, which is required by the conditions of approval for the Transfer Station. The Task Force on Compost has completed their review of Acme' s proposed Composting Program, as is contained in the attached document, and are recommending its approval by the Board of Supervisors. On February 25, 1991, our Committee met with staff and Robert Crowther, Chair of the Task Force on Compost, who briefly reviewed the proposal submitted by Acme. The one major item which is missing at this time is the cost to Acme of implementing the composting program and the potential income which can be generated from the program. This will determine the eventual cost to the consumer. We are asking that the Task Force review the proposed project costs with Acme at their next meeting and then report to our Committee on these costs, at least for the implementation of phase one of the program. One of the principal requirements for a successful composting program is a source of high quality yard wastes to use in the composting program. It was noted at our meeting that the Agri-Post operation in Dade County, Florida has had to shut down their operations because they were unable to obtain a sufficient quantity of "clean" material. The material they were using had too much heavy metal in the mix. As a result, we think it is important that Community Development Department staff meet early on with the solid waste collection companies to insure that we are able to obtain a high quality of yard wastes at the most economical cost possible. Meetings with the collection companies are already being set up to discuss curbside collection of various plastics. These meetings can be broadened out to include the need for curbside collection of separated yard wastes. CONTRA COSTA COUNTY COMMUNITY DEVELOPMENT DEPARTMENT TO: Internal.Operations Committee DATE: February 11, 1991 Supervisor Robert Schroder, Chair R-52J Supervisor Sunne Wright McPeak FROM. Catherine Kutsuris G�1- Senior Planner SUBJECT.• ACME FILL CORPORATION'S COMPOSTING DEMONSTRATION PROJECT PROPOSAL The Composting Task Force has reviewed the attached Composting Demonstration Project Proposal and recommends that the Board of Supervisors approve of this project as submitted. The Task Force additionally recommends that Acme Fill Corporation be requested to return to the Task Force with project costs. The Task Force expects to forward their recommendation regarding the cost of the project following their March 6, 1991 meeting. Robert Crowther, the Chair of the Composting Task Force, will attend your February 25, 1991 meeting to answer any questions that you may have. If I can provide any additional information, please call me at Extension 6-4195. CK•vpl vl/acmtfill.ioc Attachment cc: Robert Crowther 801-12th Street Sacramento, CA 95814 Acme Fill Corporation a CompostingDemonstration Project Proposal Fre ared. for: p 1 Acme Fill Corporation Martinez, California Brown , Vence & .Associates EXECUTIVE SUNINIARY 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 I Contra Costa County and participating municipalities to compost collectively and to move toward compliance with the ambitious recycling goals of AB 93.9. 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 processing capability 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 backyard composting demonstration garden. with examples of backyard composting technologies. educational exhibits, plants and Mowers 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. Acme plans to avail itself to competent technical consultants and a-%�ailable 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 for Phase One. S for Phase Two. and S for Phase Three. Operations and maintenance costs increase as the incoming volume of material increases. 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 & 1\i day (Input) year (Input) Cost' Phase One 20 5,200 $------ Phase Two 50 13,000 5------ i Phase Three 100 26,000 S------ Based on 5 days per wee}; operation. Each Phase may not operate a full year before moving to the next phase. iO 9001-->. 12 26 90 11 TABLE OF CONTENTS , Executive Summary i 1.0 INTRODUCTION 1-1 1.1 Objectives I-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 1-3 2.0 PROJECT DESCRIPTION 2-1 `.I Collection of Yard Debris 2-1 2.2 Site Location 2-2 2.3 Feedstocks 2-2 2.4 Site Requirements ?-2 3.0 PROCESSING EQU1PNIEtiT REQUIREMENTS 3.1 Phase One 1 3.2 Phase Two 3.3 Phase Three 3-4 3.4 Summary 3-4 4.0 PROJECT COST ;-I 4.1 Required Equipment :-I 4.2 Market Revenue 5.0 PROJECT NIANAGENIE\T 5-1 S.I 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 5.5 Water Sources and Conservation 5-5 6.0 MARKET DEVELOP�tiIENT 6-1 6.1 Market Assessment 6-1 6.2 Composting Research Projects 6-1 APPENDICES Appendix A: Technical Assumptions and Information A-I Appendix B: Equipment to be Purchased g-1 Appendix C: Backyard Composting Demonstration Garden C-1 Appendix D: Northern California Compost Operations D-I JaBI : 500;.5": 12 /26/90 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 Fast Parcel landfill by using yard Z debris current] hauled for disposal out of the County. Operations will be-in as soon as possible y po C� 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 p--rmanent station site. 1.1 Objectives The objectives of the compost demonstration project are: • To generate operational, economic, and environmental data on municipal vard debris compostinc, 0 To increase public education on and awareness of the benefits of composting • 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 vard-debris received at the transfer station • To provide a unique opportunity for the County and participating municipalities to C_ compost on a collective basis to comply with the ambitious recycling goals of AB 939. 1.2 The Integrated Waste management Act of 1989 The California Intec-,ated Waste Management Act of 1989 (AB 939) requires a comprehensive reorzanization of California's waste management process. I'ach city, and each county for its unincorporated areas, must prepare, adopt. and implement a Source Reduction and Rec%-Zling 12/26/90 1; - 1-1 Element of the new County 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, sewage0 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, yard clippings, leaves, tree trimmings, pruninos, 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 compos: yard debris. The simplest methods pile organic mate ri is 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 e--st 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: 90015:?: 12/26/90 1 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 analvsis conducted at Acme determined that about 19 percent of the waste received, or 180 tons per day (tpd) consists of yard debris. Although the majority 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 brim a vaned yard debris mixture, including cut grass, shrubbery prunings, tree branches, and garden residue. JC : 90015): 12/26/90 I-3 I ` SEC'T'ION 2.0 PROJECT DESCRUMON The compost demonstration will be developed in three distinct phases. Phase One is designcG' to use, to the extent passible, existing equipment at Acme. Phase Two will increase processing capability by purchasing additional equipment, and increasing staffing. Phase Three further increases processing capability by extending the hours of operation to include a second shift. 2.1 Collection or Yard-Debris A successful program will depend on clean segregated yard debris arriving at the transfer station. separate from the mixed refuse. Acme does not collect waste, but receives it from both self and franchised h1aulers. Therefore, Acme must coordinate the separate collection of yard debris the various haulers. Segregating yard debris from the mixed waste stream will involve de:z�lcd 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 anucipat this need and want to experiment with various collection methods. inzluding providing containers o- ca—,s: o:hcrs mai• no: want to participate at all. The more coo ration provides by hauie-s uili be for Acme to segregate the yard debris it recei%-es. Acme has'bes!un discussions with, one local hauler interested in providing curbside yard debris coli-Mion for i:s customers. Althou`h discussions are ongoing. A.cmc envisions assisting the hauler in the purchase of collection bags (either Kraft paDer,' lute. or other bags t-zsted during ti=e oer::onst-a:i&)). The hauler would be responsible for bag dist.^:bution at a seie, location to residential customers. Full bags would be either commingled with othe- refuse or colle;.ted separate],.' on normal trash pick-up days. If commingled, compost p:oiect personnel would seDarate the bags after trucks arc unloaded at the transfer station. The- bags \k.oL:ld the-: be hauled to and unloaded at the compost site. ' K-raft bats are estlma:e", to cos: between 5.30 and S.45 per bag d ndi::g on purcras:-:. 2.2 Site Location i e ' Figure 2-1 shows the entire Acme proper[}', i7igltitt ht n�, the Las t Parcel Landfill. The compost project will be located roughly in the center of the Last Parcel. Incoming Vehicles will proceed as they do now, except that those which are hauling rich loads of yard debris will be directed 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 }'ard debris. Figure 2-2 is an enlargement of the East Parcel which shouts the compost area relative to the interim transfer station. Figure 2-3 shows the proposed layout of the site. 2.3 Feedstocks The compost sit-, will accept all typ-�s of yard waste as dctincc in AB 9310 regulations. Large loos or stumps Which cannot be pro cssed will either be sold to a biomass-to-c:iergy plant, or sen; for landfill disposal. Large concentrations of palm leaves or other vine-like material ma• be removed an transferred as they can cause increased equipincm maintenance and downtime. Eu:. lvptus and other exotic plants may be segregated and composted separately. (Eucalyptus cont,,ins a subs;2,ncc which can inhibi: plant growth in some s�vcies.l The 97-acre East Pa;-c.--1 "_-.,VS more t an suf:iLient area to store anti or all of the above tr,aterals. The wood waste e:o�en o �c r do is not anticipate:: to decrease due to comoosting operations. 2.41 Site Requirements T com:}os: sit, pian for Phase One is shown in Figure -=. The processing area will be s ab:iizec usinE a gravel base. The first phase of the Proles «ill require about three acres. L:ter phases wiil need more land: as the incoming mater:ai is increased, Phase Two about 7 acres and Phase Three about 15 acres. /26!90 _ j A ^+ r c !y z aWI Al S m V CA O 77 ji N � a 1 \•- ff�� f� �.,. '/, fir• .. {i . r�. � .l; • x:14 t d o< � � �1 rt1 •�`.-�---tom: 11 .1 t�t1 .. - J ,..,� ml " t`. ` •,,,.-i–•moi' ' �':� ;t'.7 1 . �� • ,� ',�\ ; � 1. ; �, � >,:��;,-_, � t {,i`�i; Z5 ^ V p A 11-f .0 O�C'R.F E I r I —SW cz- .... :. < < < < < < < < < < < < cn sJ:• :: .� r 1 I rry N � � O rn a' 4 1.4 b-• � b d ro Q tiO� � _o q ob :o o rj a `• h E U 'tea U7 t:L r U: `' � •j � O V O L tL cr, i flAs Oil D� IJ - z zn cz X; � �N SECTION 3.0 PROCESSING EQUIPMENT REQUIRELENTS This section describes the anticipated processing equipment which will be used for all phases of the 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 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 averace of 18 to 21 tpd of incominL' yard debl-is. The be -1-C1)70C--sscd usinc a h grapple arm fcedcr. (Fo-. ,,:ormauon regarding recommendede ;eier to Appenaix B.) This configuration was chosen for several re-asons- the grapple arm operator will have time to separate, conta-sninates yard debris is p -ior to placement in the tcy the Crappie grinder; materials will be cleaner because '!I P—L less soil into the grinder; the grapple will free the whe-1 loader and operator to perform o:ac-. Las` s-, anu` loading the grinder with the loader would rccul-.c a dedicated machine, b---ausc ,..:s op-2:---ion requ-res constant attention. T he proJect will use an existing rubber-tired wheel loader currently owned by Acme. To lncl-�:st its e,Alzlencv, a 5-cubic-yard bucket will be purchased for the loader to replace the e:- --vaid bucket. The proiect wili i:--t an existing Acme-owned 4.00,Rahon water truck to add water to windrows as they are being constructed and seven times duning a 6 month compost cycle. cj ct C7, CD CDC,4 CO CO C., ci wG CO Y N (nNC:j CIO O qw cli cli qw cn cr co C) co cc 0 51 Cr U-n 4-0 co c tnco c) 0 :) C:) 3� O N o _0.j 6 z:- I . C-i W co C13 co CP 07. Cl) CP C-. zo- cn CC) tv C !. r �t� c] 1 N ' C' Ln C;l Ln co Cj on Ln � Lr. Different models and types of screen plants will be tested during Phases One and Two. A model 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 be turned about every three weeks depending on moisture levels. A trommel screen could be used to separate contaminates from the incoming, material. While a trommel is a very effective too!, the costs are veIv hichn (trommcl and associLtc, coveyors are cstlmated at S ACnic will need to evaluate and Judge the contamination 'i--vel of IncominR vaj-d debris In order to consider the purchase of a trommel screen. 0-'hC7 less- expensive methods of decreasing contamination include increasinZ promotion and ef-lucation efiorts. and inCfeasinz manual or visual insp.zction of the re----I\Icd y2rd debris. The I)U7chas-, of a trommel screen may be considered in the later Phases of the demonstration proJec'. or for the %vast-C 1-1__ove-,v and tra-isfe- S:Z-,1011. D:,=,-_ Phase On::. the s ngie wht--i loau`-.- will be the lim, 1-,:nsi facto:. limiting — *h,-o,,!2hDu,_,,o about 20 tDd of vard deb.,S. 3.2 Phase Tv o Phasc Two will increase the *L-roughput of equipment under used in the Phase One p.-cgram. A simila: wheel load--T With a 51-cubic-yard bucket will be purchased p,-ioT to start-up o: Phase Two: howeve.. before a second loadc., is purchased. a loader capable of handling nine cubi_ yards will be evaluated as a m=s to further increase efficiency Of the operation. A second loadc- \kill more than double the ystcm capacity. b��ausc each loader co-,Ad do lobs. )eSS ZT2VC] time \kill be reciu,-L-i. and the lob cvole turic could b-1 __'7o C Material throughput will be increased to about 4S to.SO tic!. The increased tonnage will require r P t nceq additional water truck trips and increased use of utility personnel to separate increased amounts of barged yard debris from the unloading area. The tub grinder will be olerating at or slightly A 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 be a combination of increased operations and maintenance cost, together with an increased depreciation on the capital equip;l,er.:, and potentially incre--sed dog:tine because parts will wear out faster than -vlth a single s :i:: operation. 3.4 Summary There is no set schedule for implementing each phase. The proitct is desicned so that shifting ane phase to the next depends on eeuioment caoab;h-,v and ooeratir.g experience. Hauler and cclmDo s: markets %•ill a:so have .,,Zio' e:ft.: To tae exter.: possibi•, mach.ne,v hes bt!cn recommended that be user; the ful;-scL�c ),vaste recover-v and transfer statin:.. in an effort to reduce tote] c2?ital Cosa. 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 S Phase Two is estimated at S_, and Phase Three is estimated at S . Operations and maintenance costs will be pro rated based on the percentage 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 would be incorporated into the rate-setting process for the interim transfer station. 0 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 5-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. JOB 9 0015)"' 12/26/90 4-1 { Table 4-1 Estimated Cost by Phase _ 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&1 M Personnel Equipment.Maintenance Equipment Rental Technical Consulting Laboratory Testing Market Assessment Nlarketinz(f) Public Education Research Collection Bads SUBTOTAL(_) y TOTAL Not.-s: ,-;) 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&M under equipment rental. d) Site preparation includes a 6-inch gavel pad for the processing area... e) Capital costs are added, recardless-of bminc 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 then combined for an annual total. c) Marketing cost will, when possible, be offset by sales commissions. Table 4-2 Existing and Required Equipment Phase One Phase Two Prase Three Existing Wheel Loader Equipment: Water Truck Purchased: Tub G7nder NVIndrow Turn--: S--.-cc.,,, Plan: -yard bucket `Vheel Loader Rented: Wastewater tanks );'astewater Tanis Waste-water Tanks Sere—,n Plant Screen Plant Combos: Turner a - 4.2 Market Revenue While Aclne experts the coniNst produced from the demonstration pro cct to be marl:ct.bic. offseuing projcct costs with proiectcd revenue is considered premature at this point because of the unkno-.�n nature of lo�ml compost markets. Actual revenue from selling compost (minus an), sajes commission) will be used to offset project cost in an effort to reduce the overall costs o the demonstration proicct. .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 strate2v, 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 dcvc-ioD-cd. Public education efforts mai• include ads in local nc«spap,:.rs and nurseries, and ti\crs included with the bag distribution program to targeted residents within the der-ionstration areas. 5.3 Backyard Composting Demonstration A backyard composting demonstration garden (see Appendix C) will be pro\•ided as part of the demonstration project and will show resident's 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: 90C'_5}: 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 revie", 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 Itachate and/or surface runoff from composting leaf and/or yard debris piles. If properly designed and operated, these facilities should not produce leachate. From field observations 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, I to 2 feet high 11 be placed around the I \,6 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 cualltv of water which may enter the landfill. Acme is planning to develop test areas as part of the proiect. 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 JOB: 90015): 12/26/90 i 1 Table 5-1 New Jersey Yard Debris Runoff/Leachate Characteristics Element Units Average Range Number of Value Samples per Month BOD(a) mg/I 56 12-98 7 i COD(b) mg/l 134 32-210 7 Color C.U. 233 14-385 7 Dissolved Oxygen mg/1 6 I.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 mg/1 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/l 15.3 0.4-4.6 7 Ammonia mg/1 0.7 0.01-2.0 7 Chloride mo/1 63.4 7-102 7 Phosphate mg/1 2.4 1-3.5 7 Notes: a) BOJ = Biochemical Oxygen Demand b) COD = Chemical Oxygen Demand Source: Personal Communication, Joel Alpert. E d A Consultants, December 1990. J0B: 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, malting 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 Q 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 6.1 Market Assessment 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, or as 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 back-yard 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 u•ay 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 proiect. 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 jOE: 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 laborat6ry 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. JOE: 90015i: 12/26/90 6 APPENDIX 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 vard 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 will 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 (using shift I ina the more conservative 5 rminutes per cycle), or the loader can move approximatclv 420 cubic yards of material per day. The wheel loader will perform the following functions during each work dav: 1. Move incoming yard debris from unloading area within reach of the tub grinder's grapple. 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. Z-1 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 C� 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) (potinds) 1.0 400 0.72(1) 400 1.26(2) 1400(2) 4 0.18( 5 0.18 _00 6 0.18 200 7 0.18 200 Tom) 3.88 300K) Notes: I Based on shredded, mixed, yard debris. 21 Based on average decomposition of vard-debrl's multiplied by 7 piles 18 7 = 1.26) and (.200 ' 7 = 1400). For each ton of yard debris processed per day, 5 cubic ,ards of incominc, material need to be processed or a total of 19.5 cubic vards total need to be moved by the wheel loader. Thus a loader could handle approximately .2 I tons of yard debris per day. JOB : 9001:57 12/26/90 A-2 2. Tub Grinder The project is currently evaluating 2 manufacturers of tub grinders.- For the purposes of analysis thr. 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 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 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 -finder is rated for 30 tons per hour when fed wood waste; it is much slower and more difficult to -find 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. NVater Truck The Project will use an Acme-owned 4000 gallon water truck to add water initially to the 03 ncoming0, 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 99,000 pounds of water would be require'd. The 4000 gallon water truck contains 32,000 pounds of water. Thus slightly over three trucks of water per day .70B: 90015X 12/26/90 A-3 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 require twice the amount of water in Phase Two, approximately 509,600 pounds of water or 16 trips in two eight hour shifts. t 4. Screen For the purposes of analysis it is assumed that a Read Screen-All Model RD-90B will be used, 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 dile; materials screen faster but can cause dust problems). A 21 ton per day compost facility will produce roughly 20 cubic vards 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 "-ill limit protect throughput to 21 tons of yard debris per day. Phase T•.;'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 vards will be purchased. JOB: 90015;=: 12/26/50 A-4 The use of a similar sized loader would more than double the system capacity since each loader 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 make 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 limitirlE 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 i give a linear increase C� n throuzhput with no additional capital expenditures. The increased costs would be a con",ir.,:tion of increased oiy--rations and maintenance costs, together with an increased depreciation ion on th- Cipital equipment and potentially increased down time as pans will wear out faster than with a Single shift operation. JOB: 900115): 12/26/90 A-5 • APPENDIX B EQUIPMENT TO BE PURCHASED Tub Grinder 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 -finders. 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 gninder is the Fuel lian,estcr wash also equipped with a grapple arm feeder. The WHO is also a heavy-duty machine built specifically for processing wood or yard debris. NVHO grinders are used by the majority of composting operations 11 .No-,them. 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 will 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 I the screens to be tested include a Rover Mark 11, and a Read Screen-all. The Rover Screen is a heavy-duty screening system capable of separating large volumes of compost into various sizes. C, t! JOE: 9 0 0 1 5X 12/26/90 B-1 The Read Screen All is also a heavy duty Screen more than capable of processing chipped yard • debris. Win4row Turner The Project will evaluate and test several models of windrow turning devices, includinc, 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 shown in the following literature. Wheel Loader Acme currently owns a Cat 950 B loader With a 3 yard bucket. A five yard, light du,"" buck-It .,A-111 be purchased for Phase One. Phase Two will require the purchase of a second Wheel loader, Which Will be equipped with,a larger bucket. Consideration will be given to the P",rchase of a larger loader in an effort to increase overall efficiency. JOB1 : 90015X 12/26/50 B-2 ' ♦ r, w.y�t�.. .. -r f y rrv;,� ....�,..�. ,� � �`i. �• n°C.�Y '�'� 41'r^•Si:t'• )t r�.,yt .�;.Lty.•,,:. 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(eier—v - .x encet; Jo`coe.rw)' : .. u)' SCr?enS �;:-)mer,:,:;:, cnc c!sCnc c=c 0; ICI C: Tu--. nom'^ni 10fi. L Irl _",.rer -i- D Conveyor oe .. iuc cel?n 63 In. Froducl is furtner corn'eyec c, 2S' - elevoTor bel-. ..i Irl..,, 1� �. ✓Ilrl...... �, ,.., 1 1.'11 Rcior. Le�l�i~. 55 in. ServiC� : JicmS?ter ib in. pes,cnec for ecse cf moinlencnce Speec 2.000 RPM en;� minimum downtime - c,'. crive hc^nmers: Numoer in sTenccrc se: 410 systems. becrinos, shofis, oeors, encs_. Swing dic,1,,eter 25 in. sarocke?s, cnc v-belts are vsib!e. - U��ei�nf o lbs. cccessiole, and ecsily servzec. Fuel Harvesters de 41 v 4Ka�`:' omac v 4t to C OQ7".r ` \,1,��+�'„'�'" ��u �,,a�.,.r•,,.�•�����*�•;1 �'•'• .# cG�'^ v, � ?'.'Si,., O�V ,,yy��s'�,etgy Y �' b m O ♦a� yam,, �� �.• U�� ��1+•� ,.1 Q3N r lam" C Q. + , N,,,_V,." 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MINIM,!'7ES LANDFILL SPACE REQUIREMENTS REDUCES WASTE VOLUME BY SO% By composting Citi.'wastes.many communities have The wildcat Compost turner is a unit that win ccn. reduced their cost of landfill accuistions by reoucng vert sludge, leaves and other organic was�es to v,land space needed. In addition, proper composting anle compost anc fertilizer,quickly. Uo to 2608 tens r;•-. helps prepare landfills for post-landfill use. As pooula. hour with a single operator. No snrea0er is neecez tions expand, nearby available landfill areas must rely The woocat composter Coes it au. : on composting to reduce increased volumes and cost. ME DOLLAPS -You curcnase only the compost turner ana use DEPENDABLE - v-1,:=' has nee^ m.-muia.-;oring ir own prime mover. turners for over a oecacc. ST EFFECTIVE - Ccmoost in less time anc save your lanafiu ONE MAN OPERATION - Long r.re fcl:ure,a-:a ie_s mar r a` rma<e wilOCa:a prC`i:a:; e investment IRABLE - Less moving para. extra neavy duty�Iaiis. 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'��.-.r•��' `^ � w..v.•r � � � ^ �` crf! � )3 ^ 1 ♦ t - .�:�.•^_ - •-vc.-+."'cT^'i�m.c_' - -""_'�c�r_--r•-s.^T'r' /rr- ty--.rva- � S ,c;i Y,tc.f��f.'L ��y Z� Yr f;-`- Y` `-�` { r�--.�-.:--�-�-=«-- r----.rr�>. --.-�.-.-:,�, _ _- � ,�, rte'.;,�• � i i � � � -- Ha:,M if The Powerscreen ASK II is a mcbile screening plant, - and is the ultimate result of more than two decades of " lesion develcoment backed uD by rioourous field t:'stinu tc provide a vers,^:trie, eIticient system which can dandle a wide V3rietl`of itlateri;tl. - •'x- `� The tt,frts into the current Powerscreen product "• '�' r /�-� � range.Some of the fealures include 3 dieselfhvdrauliC + '` ' �y •, ' `' "� !�` l power un:t. and icv., bar far on-site movement. The _ .�� �. ,.�<,.h `-_• ��;_� fi machine consists of a belt-feede% a main conveyor arta a lwo-deck screen unit. d' s•— r, << An additional unit has recently been introduced,namely "the mini-shredder"attachment. This versatile ,•tt ' ��" attachment can be fitted directiv on to a M-K it 'c �`Sn w • Powerscreen Belt rEe;7�,r. This ruacted attachment will allow a Pm-.,erscreen to convert difficult materials into a saleable product. The Powerscreen MK 11 delivers high standards of performance that other systems simply can't Mlt,rt-SHREDDER meel - continuino_ in the tradition i:,,31 has made ins ar'aChmen;can ba twee or: to rn� ''3ut)c Svs:_^r'7 is ea5 PO1r%r=r�SC^r,EEFJ the leader in its industn. r•i eoe.,. 'one Nr acaarPe to.:are•'C'r.lP - PERFORMANCE The Por:erscreen h4K II is M. r.Snr_;joo: Tri Snrecce"S-a': - �:`ereJ C� des�neC t0 Cri:'O eacr,�• re no✓ ic- Ir reoar Tr.- r�n , Cn. - aDzs C:.' Cu": on- C: ;vD t.. 60 s,,o.kD!!:nJin:--, . .. C7 GR:D "'V n - _ 71PPtNG REJc' co. e~ c r^.� corivevC's fin, coniunction 1:ii l r'nr' T,�O:n^rr'e_. Gnc,s t l- If-1,K 1'. is C^I',takes one cons:ruc:ec C.,r2avr caucc Cc,iC a`I tar an Haut to t�ceC tr e Steel to wans;anC tua Cc USP ano tn"duces rare 0:o;P5 t0.' -'�•`y fi vl":°'$CrC°n 11'it li gD°tai: ^ easV I :e c 02C,!L l: CrrC r- ' Tr'a,i.aril:°;,i:+}ce•ireenVg;C'L1:", 1;tnOE„ a J:'; ,.tti.;.« tiff:'>C ^3: W:i:a, i$c le,:ture a. a;l° 3'.'Ov.'S PVari•cG:0.')0 Ga' 'C re t:�•'. ti I'-aaC$ aye;a:.cnai G(;� tarsea anc tar-pP Stone. iu:;arx M . lC_ OeDrtsCaucn rn__a _nz a: �� e•n..-. '/" \ 1 CCS.$ IC' PU:'.-Asi!,;TY ._ __. _ ;P,r:$ Call'.. _ c = _ =x:;a acvar,:ac_$^in - - T n e un:c-j. Z sysiem a!1c­:s e� .PROFITABILITY "axI . Cr' DrCCuCUo :7= co,;.G.SC*e_., i:'.•;It 1•,,iil h:::;C:_ . ;� / S:.. CCG. w s' so:'. ___.. 1•:00c CFME:. POWERS;REEr1- ­oviC:. :CittirJ SCJEt'rrrt� 2 t'r;Q•'t3'c ,I?t Ot;^ C01.111-=p PLANT ., C^.'c'/'%� l:CCr+C�Ci.^.-t:✓'G;.•!C,,.'+';_;:KC:?St.:n.^.C- - _tet.,_.p.s':. _ 3 .ISKY?.. Nr _ :t nU2' _... .. -__- - �v!rt'l?_ ._ ,. 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Ll ....:,F a: .. ..z _ rT' t.,„"'•. r 1. .\. `'�} �_�; _ _- _ - t'���_i..� .moi, -V. .,. ." _- •i. - - _ �'•�l - . l 'h :iECIFICATIONS Lit Ai- ' Leno h 15.5 in (5* it 6 rn=1 � 2.44 m $.10m,. a � Towing Height 2.98 m 0 Int e Operak.c Helcti: :,.SE r^ (;E?a ins. .� Hopoer Qoenm 2.9 m x '..,, r^ ra , o L"_ . .. a!� HCpper Caoaci v ondjolna cric, E-.95 c r. !_.2 _ Screen Size ..22 m x ..4: r7 , > t i:.xox wetont Enc'rtc Ac Coo'..., %l'a5c-;21 KV t� 7 —" ° Conveyor Belt Liar, E 0 m t•r,zm Conveyor cel; Spew oczoeu' m Svs:eT: .a.ac i vre rresswe - S2 _.a, J,. r t"'3 .-� - _ '` • �� " DtStrtburea anI ServtCe�-Z% iiccfrrrr- • � flrs.�'wYp t�,�, 4� 'Cy :� •?{�ykt•►='.r j„_ y, t 7.3^ �ir�' •'�••/�„�,p`�t;�«s�-���•t;t`• t'� r/ii, „'oto-�` '';�y3"" Z: .. 1�'.! eft:.+ •,J"ti� �..ty��.t_Y'�^'1^N7",'".-: i'�:♦,.4 ,C: 1'.! � �-,:►rte • /. .t. �`•_ T. ilk- t"`.{'-�-,�{.\1.y`ir� CJ7'yy?.a•:(• t.1�c .C„:wi+-.. •�aw.�'�"/• •. e,• •. �:. �,, .rte• ��� .�-• '= v�',t�+�' Y'. <;i'�r.�.r.'1. • •-^` r' '"-✓-,>,.tij?t...•,tii-i-.l•i. 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P5 :. �. •,.��. t y �"' It 11 J '�• .. + . .• 1�iI *`, -r '"-.,(. / ter., +«r'•.,r: a.� " '-Y1RiJ<`'r''"yy'^ -t•^ 3 _ •�/ iYrf�" s.n �+G<ij orf'.;%!!. +,�• t. �' J t• op f��,, �.. (,'��'�� 1'�1'.Vic. �� '.++SYS'%�^`��r���S�•�� f.:a'.� .ryl��* �t. l.y:+►J�!rsRi ""-'- . r ��`N7Til'r"!'.r :!ti' .�` • w{. �7, 51 eo � t � �Y:'. t y. i ,�•"!�c'u /���.�'�" -: ,,.•, .....�:i "r',•t..�r/.'•.'".�- r.+^• --i'�6' I.•�t� yi.,�"y„ ,>,-f{`d�+•r+ ',y. _ y(,{,. •- •= s...v'.. ?y`.•�pa�."S .i c Jr tt-: �/„-".�✓:'•�..►,�. .: _._ .rr�i.�""' ""�>••'J��...�•�,;:� .� �,/p•.".XSI,a•"^"`� *� � s.1< { tgJ'�t•.. ��t ��i• �• �` .f.?:Go. —J r..i'.�!�..•-'s+^"'•�'' _- ,�Y;.P �F"arr•',',•'•^''r ,,�,��•-,,��. j �,� f AA^�a'�t� - r:. -��;,;-/���„• r''•r'at^.-;,� ODE - 90B- ALL RD F L' CIS --TS AP ,a Scre'er.-All Model RIS- u8 SPECIFICATIONS Overall Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25'8` Brakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Height (Operational) . . . . . . . . . . . . . . . . .. . . . . 10'11• Major Working Components . . . . . . . . . .All Hydrau!io Height (Operational) .(with Ultrafeed) . . . . . . . . . 11'4" Engine Make . . . . . . . . . . . ... . . . . . Lister, 3 cyl.TX-3 Heigh', (Operationaf) .(with Ultrafeed raised) . . . .16'6' Ennine Type . . . . . . . . . . . . . . . . . . Air Cooled, Diesel Height (T ravq) . . . . . . . . . . . . . . . . . . . . . . . . . . . 11'8• Horsepov/e.. . . . . . . . . . . . . . . . . . . . . 36 Ca, 2100 rpm Height (Travel) (with U11rafeed). . . . . . . . . . . . . . . 12'1• Approx. Fuel Consumption (8 flours) . 10 gallons tVidlh for Haul-Ing . . . . . . . . . . . . . . . . . . . . . . . . . 7-10- Fuel Capacity (Tank) . . . . . . . . . . . . . . . . . . .14 gallons 4" o7oh, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,41310 tbs. Shakerhead Decks . . . . . . . . . . . . . . . . . . . . . . 2 decks Weight (with Ultrafeed) . . . . . . . . . . . . . . . . 23,160 tbs. Screen Areas . . . . . . . . . . . . ... . . . . . . . . . . .10'x 6'C* Tongue Weight. .. . . . . . . . . . . . . . . . . . . . 11,460 tbs. Screen Sizes Available . . . . . . . . . . . . . . . . . . . 1/4, -4* Tongue Weight (with Ultrafeed). . . . . . . . . 13,300 tbs. Harp Screen Sizes Avail, . . . 1 mm-19 mm; .039*-.748 Towing Arrangement . . . . . . . . . . . . . . . . . Fifth Wheel Approx. Shaft Speed, Shakerhead . . . . . . . . 1150 rp;n Axle Weight Capacity. . . . . . . . . . . . . . . . . 22.000 lus. Opening for Bucket (Under Screen) . . . . . . . . . . . Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0, 17.5 Capacity in Opening (Under Screeil) . . . . . 15 cu. yds. Loader Capacity (Bucket Size) . . . . . . . . . . 3.5 cu. yds. zs e~ —--------- 07-ITIONS: 11-la.-PDe-ok 'Screen, Ul:r'a-�eec; Sys-tem, Sanco' Ski,—Ls: Pun--1-i Plc-,e Sets 4%8" :s..;e to vie rP%ea:! co0cies c!con*unuec orooLict irno*fovemen-s.soecifi:a*#ons are sut-:e�*.io cn&nc-- w.*.,)cu,.nooce or cousa,;or..A!;%%eicn-s are a=c7cx:7-.a',e Authorizcd Distribuio.- < j If 77� �E 3'J 9---J 2 APPENDIX C A BACKYARD COMPOSTING DEMONSTRATION GARDEN AT ACNIE FILL. Back- yard 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 composting 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 yard debris compost. Planted flowers arid other plants would show how compost works. The following exhibits will be evaluated for inclusion in the demonstration garden. Backyard Composting Methods Simole 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. `'Form bin: A worm bin is used primarily to compost food waste. It uses a closed box to house red xorms, which consume food waste. JOU: 90015}: 12/26/90 C-1 Compost Growing Areas A large grassy demonstration area using compost for lawn growth and maintenance. The -Aemonstration could include se-If-mulching lawn mowers. • 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 A arcenhouse which uses landfill gas to maintain a constant temperature. A variety of herbs and flowers can be grown in the greenhouse. Public Information Areas 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. Surrimary A more detailed document descn'bing the site requirements and estimated costs will be prepared prior to developing the demonstration site. jOB: 90015X 12/26/90 C-2 APPENTDIX D NORTHER.Ni '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-I summarizes several basic parameters of each program so that the programs may be compared. City, of Berkelev The City of Berkeley currently operates a pilot curbside composting operation. inyolvina 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 IS tons per hour. operating 6 hours a day 5 days a week. Cite of Davis The Citv of Davis currently provides curbside yard debris collection using the curbside 'cla%k•' 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 windro%k,ed 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 coliects approximately 350 tons per month. iC..? : 9001-_5:: 12/26/90 D-1 Z ) o " to S 2 I C- / CIO _ >1\ S / . ! 3 t / ƒcz % , [ & 5 �� "n w \ C; C; / C- . az > . a t \ . - !' � 6 c � ! , . . ./ . S City of Modesto The City of Modesto collects brush and leaves during leaf season (November to January) using the Curbside 'claw' system and packer trucks. The brush 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 Acme project 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 -round a Fuel Harvester WHO tub grinder. The projected volume is about 3)00 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 windrowed. The product is currently sold at the landfill at S12 per yard, the rest is used for in-house public works projects. The expansion plans currently foresee a 40 acre site using 0j C71 a 122esund screw auger to process the material. The material will be turned using a 'King of the Windrow* turning machine. The City has already trademarkej their final product with the State of California and plans to market it through a broker and to sell to large sand and travel operations. Thev project producing about 150.000 cubic vards annually. JOB: 90015): 12/26/90 D 3 i City of San Jose The Cit}y recently completed a curbside collection pilot program which collected leaves using the p 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 '-';0 - 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. E JO2: 9001S?: 12/26/90 D-4