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HomeMy WebLinkAboutStaff Report 381-10TO: ATTN: FROM: DATE: HONORABLE CITY COUNCIL FINANCE COMMITTEE CITY MANAGER OCTOBER 19, 2010 DEPARTMENT: PUBLIC WORKS CMR:381:10 REPORT TYPE: ACTION SUBJECT: Report on Options for the Future of Landrill and Composting Operations in Palo Alto and Staff Recommendation to Accept LandfIll Operations Option No. 1 to Quickly Fill the Remaining Landfill Capacity While Retaining Existing Composting Operations and, _________ ---'TL.Ah ... e ___ r""ea .... ft...,e----,r,£oD\'eJ"ttheM~_taParkland asJ!ast-»-:&lssible~ ---~~----- EXECUTIVE SUMMARY On August 5, 2010, Council directed staff to return to Council with a comprehensive cost analysis and timeframe for closing the Byxbee Park landfill and converting the area to parkland. In addition, Council directed staff to report back on the financial viability of the current windrow composting operation sited on the landfill. Lastly, this year the Refuse Fund has been particularly impacted resulting in a projected Rate Stabilization Reserve deficit of approximately $5.6 million This deficit is offset by the reserve for landfill closure but that reserve is required by State law to be kept at a sufficient level to fund the landfill's eventual closure. While part of this impact is due to the recession and reduces revenues due to increased waste stream diversion rates, it is also largely driven by legacy costs associated with maintaining two parallel waste disposal operations: the City's own landfill operations on the one hand, and the SMaRT Station and Kirby Canyon landfill contractual commitments oh the other hand. Given the complexity of these i~sues, on October 4,2010, the Council voted to refer the matter to the Finance Committee for initial discussion. This report presents four options for closing the landfill and analyzes the associated cost impacts to the Refuse Fund. Staff concludes that the most cost ~ffective manner of closing the landfill is a"fast fill" option (Option 1) which would completely fill the remaining landfill capacity by the end of 2011. This report also presents u,pdated compost facility cost information that shows the compo sting operation at our landfill, though not profitable, is less expensive than the option of sending curbside collected yard trimmings to SMaRT. This report does not address the issue of funding future park improvements to the closed landfill open space as that is best discussed in a larger policy framework relating to the overall General Fund infrastructure budget and -funding backlog. CMR:381:10 Page lof8 RECO~NDATIONS Staff recommends that the Finance Committee recommend to the full Council to accept Landfill Operations Option No.1 to quickly fill the remaining landfill capacity, while retaining existing composting operations and thereafter convert the area to parkland as fast as possible. BACKGROUND At the meeting on August 5, 2010, Council passed the following motion: Staff to return in October 2010 with all options on composting and include all options until the close of the landfill in 2012 and to advise Council if selling compost is profitable and to include Staff costs in the total costs Later in the meeting on August 5, 2010 after awarding a contract to Alternative Resources, Inc. for an Energy/Compost Feasibility Study, Council made the following related motion: Staff to return in October 2010 with a first cut analysis of RefUse Fund costs, closure and rent, and afinal cut by January 24,2011 with a report on a timeframefor closing of the lan4fill and rebuilding of the park with costs. -~~--------------- Background on Commercial Refuse Ban - A commercial garbage ban was implemented by Council on January 12, 2009 when a motion passed containing the following provision: "The City shall suspend accepting commercial garbage at the Palo Alto dump while awaiting City Council action on the recommendations of the Blue Ribbon Task Force on Composting (BRTF). " The landfill ban was implemented oaMarch 1, 2009. The recommendations from the BRTF were presented to Council on October 19, 2009 (CMR:402:09). Council did not lift the commercial waste ban at that time. Staff returned to Council on AprilS, 2010 (CMR:165:1O) with a recommendation that included the resumption of commercial garbage acceptance at the landfill. Council elected to keep the ban in place pending additional discussion regarding the feasibility of an anaerobic digestion facility at the landfill. Background on Landfill Closure Date -On September 20, 2010 Staff presented a landfill capacity update report (CMR 349:10) that indicated that the landfill will reach capacity in mid 2015 assuming that the commercial ban remains in place during the life of the landfill and that the landfill would also change operations to only 5 days per week. CMR 349: 10 further discussed that because of the commercial ban, meant to preserve options for a potential anaerobic digestion facility, the rate of refuse filling has slowed considerably within the last year and a half. Based on this slower rate offill, the landfill capacity could last until mid-20IS. The landfill is currently entering a status commonly referred to as ''trickling closure". Trickling closure is defined in California Code of Regulations (CCR) Title 27 with the following text. If the average annual waste disposal rate to a solid waste landfill is reduced for two consecutive years to a rate equal to or less than thirty (30) percent of the average annual tonnage rate during the previous ten years (exclusive of the minimum and maximum CMR:381:10 Page 2 of8 tonnage years), the operator shall begin closure activities in accordance with the time frames specified in the closure plan unless granted an extension pursuant to {Title 27, Section 21110J (b) (3). The landfill's approved final closure plan estimated a refuse capacity depletion date of between March. 2011 and September 2011 (estimated before the commercial ban was implemented). Therefore, in order to continue accepting refuse after 2011 the City would need to apply to the County and State for an extension to the 2011 closure plan date. Background on Landfill Rent -In January 2007, following a recommendation from former City Auditor Sharon Erickson, Council approved a landfill rent schedule through 2021 for Phases IIA, B and C (CMR 104:07). The rent schedule contained the following components: back rent for closed landfill Phases IIA and lIB from 2004-2007; reduced rent for Phases IIA and 1m through 2011 (the projected landfill closure date); full market value rent for Phase lIe through 2011 and a smoothing schedule that would minimize dramatic rate increases attributable solely to rent charges. Staff is currently preparing the closed phases for public access under approved Capital Improvement Program (CIP) project RF-11001 (Landfill Closure). Additional rent beyond the existing smoothing schedule for Phases IIA and lIB would not be appropriate once these portions ofByxbee Park are-Openedto.-public-accessJn--SUmmer.20l1~.~-----------~------- DISCUSSION Composting -An updated cost analysis was prepared for the City's compo sting facility for fiscal year 2010 and is included in Table 1 below. Table 1 compares the cost of maintaining the compost option on site for a one year period with the costs of transporting the City's yard trimmings to SMaRT where· they are then shipped to the composting facility at Z-Best. Remaining compost after landfill closure will be incorporated into to the landfill cap· as vegetative cover material. Land rent to the General Fund at $100,000 per acre was not considered in the scenarios because the rent would be consistent with both scenarios (because the landfill has not closed). It should also be noted that the rent is a fixed cost that would be charged by the General Fund regardless if the Composting Facility were open or not. In addition, the cost that SMaR T® charges the City to process yard trimmings is the current rate based on the nominal amount of yard trimmings currently delivered by the City to SMaRT. This rate will likely increase if the City were to substantially increase delivery of yard trimmings tonnages. Therefore the costs in scenario 2 are subject to increase. Based on gate fees at Z-Best and transportation the actual costs to SMaRT for processing this quantity of yard trimmlngs would be approximately $400,000 per year. CMR:381:1O Page 3 of8 Table 1 Composting Facility Cost Com;.a:iP:.::la:::..:ns=.o::.:n=--__ --.-_________ --, Yard Option: Trimmings Scenario 1 Continue Composting (based on Description: actual FY 2010 Revenues Compost Sales Yard Trimmings Gate Fees ( Exnenses Salaries and Benefits -(One full-time Heavy Equipment Operator) Disability I Workers Comp (per SAP report) Vehicle Equipment Maintenance Vehicle Equipment Replacement Allocation Screener Rental (pO 4610000075) Wood Grinder Rental (PO 4610000079) Compost Testing SMaRT Gate rate at $14 per ton (current contract) * Additional Transportation Costs to SMaRT ($2.00/ton) Total Expenses Net Annual Operating Profit/(Loss) Palo Alto Compost Facility Dat~ , $ 88,531 $388,256 $110,000 $ 23,104 $ 201,774 $ 176,750 $ 28,560 $ 72,150 $ 2,500 ,',. '. ' " " " . $ 614,838 ($138,051) Yard Trimmings Scenario 2 Close composting and send curbside yard trimmings to SMaRT (current contract prices) " ',' " " , " ,', , '. .::C ~ '" ' , ' ," , " , ,', ,> " " . " $170,478 $ 24,354 $194,832 ($194,832) *This rate is the same rate charged to Mountain View and Sunnyvale and is a reduced rate that is subsidized by credit for recyclables delivered to SMaRT. As Palo Alto does not deliver recyclables there, it is expected that SMaRT would raise fees to Palo Alto in order to balance revenues and expenses for processing the additional yard trimmings. In the short term, considering that rent is fixed, the least expensive option to the City is to continue operating the City's compo sting facility in conjunction with the ongoing landfill operations. Overall, the operation does not generate a profit, but it minimizes cost to the Refuse Fund. CMR:381:10 Page 4 of8 Compost Grinder Engine Refurbish -On August 5, Council also deferred action on a contract with Peterson Power Systems to refurbish the compo sting grinder engine (CMR:304: 1 0) to permit a more thorough discussion on the economics of the existing compo sting operation on the Palo Alto landfill. The table above indicates that closing the compo sting operation on the Palo Alto landfill would result in greater costs to the Refuse Fund if the overall landfill rent is not considered part of the composting operational cost. Assuming that grinding services will only be required for 12 more months (the estimated landfill closure timeline under the "fast fill" option), refurbishing the grinder engine does not appear to be the most economical option to maintain the grinding operations for the compo sting program. Table 2 included as Attachment A illustrates the costs of the options analyzed in CMR 304:10. The table includes an updated cost for contract grinding services. Previous contract grinding service cost approximately $30,000 per month. The monthly cost has noW dropped to under $18,000 since a recent contract award with a different vender and a more efficient grinder. Option 2 (contracting with a private vendor) is clearly the lowest cost even if it took only 3 months to complete the refurbishment. Therefore, staff is no longer seeking approval of the Peterson Power Systems contract that was recommended in CMR:304:10. Landfill Closure Timing. 0.p1ions....---. ____ Unde~currenLState___Iegulati.on.s-foLlandfills,-stafLhas- identified three feasible options that can affect when the landfill would cease accepting waste and dose. A fourth option may also be viable, however, permits may be more difficult to obtain. Additionally, the fourth option is also not compatible with the recent Council decision to defer funding for CIP RF-I0003 (Drying Beds, Material Storage and Transfer Area). The four options are shown in the table below. A timeline with decision pathways for each of these options is included as Attachment B, and a matrix of pros and cons for the four options is provided as Attachment C. CMR:381:10 Page 5 of8 Options No. 1 -Close the landfill ASAP. No.2 -Continue current practices with interim decision points. Date When Waste Acceptance would cease Mid to late 2011 2012-2015 Description Immediately lift commercial ban and divert curbside garbage from SMaRT to fill the landfill ASAP. Continue current operations including the commercial ban until landfill capacity is reached, then fill rapidly using diverted curbside garbage from SMaRT to complete the landfill if needed. No.3 -Close Cease waste acceptance from Operations to the all sources except internal City Estimated Impact to FY 2011 Refuse Fund Budget Savings of$750,000 Extra Cost of $250,000l. Public with operations (Utilities, CSD, ~ I {\{\ (\{\{\ ---------+~~--~~--~--~~~~--~~~~~~-~~~--~~-~~~~7~+~.~~u6~~1~v~v,v~v,H-v+----------mtenm deCISIon 2012-2015 Public Works, etc.) then fill points. rapidly using diverted curbside garbage from SMaRT to complete the landfill if needed. No.4- Temporarily suspend all waste acceptance until a decision is made on the AD Facility. 2012-2015 Temporarily cease all waste acceptance, then fill rapidly usmg diverted curbside garbage from SMaRT to complete the landfill if needed. Extra Cost of $300,000 1. Option 2 is the baseline FY 2011 landfill budget without the cost savings that were to be realized by reducing operations to only 5 days per week. Conchision on Landfill Options: As shown on Attachment B, all options keep the landfill site open long enough to complete the AD Feasibility Study scheduled for September 2011. Option No.1, staff's recommendation, has several benefits. First, it most effectively advances current Council policy of expeditiously returning the landfill to parkland as reflected in the Baylands Master Plan and the State-approved closure grading plan. Further, it is most cost effective and does not rt(quire any modification to the existing landfill rent and amortization schedule. Finally, it has the least impact on current operations, such as windrow composting, use of landfill by city crews and use of landfill by the public. Additionally, in the short term, over the next year, this option both reduces expenses and provides some additional revenue to the refuse fund. The major downside associated with Option 1 is that by diverting the curbside garbage from SMaRT to the landfill, there will be a temporary drop in the City's overall diversion rate. This is due to the fact that SMaRT is able to recover additional recyclables from the curbside refuse stream that the City's landfill operations are unable to recover. Notwithstanding this anticipated dip, the City's overall diversion rate is CMR:381:1O Page 6 of8 still expected to be well above the rate required by AB 939 for 2010 and 2011. However, it may fall below the Zero Waste Operational Plan goal of 73% diversion by 2011. Last year, PalQ Alto already achieved that goal with a 74% diversion rate. It is important to note that the 9-acre area for a potential AD Facility is already very close to the permitted final grading plan. It is nearly already filled with garbage that would need to be excavated and relocated to provide a level pad for the facility. Staff anticipates that the fast fill option would not have a significant impact on the amount of waste that would need to be moved if Palo Alto elects to move ahead with a new Anaerobic Digestion Facility. OPTIONS TO STAFF RECOMMENDATION If the staff recommendation is not approved and disposal tonnages remain low through the end of 2010, then the Local Enforcement Agency (LEA) would likely issue a stipulated order to the City to either apply for a closure extension or follow the existing closure schedule contained within the approved Final Closure Plan. This could require the City to implement closure activities regardless of the grading plan status if a closure timeline extension is not obtained. Closing the landfill before the grading plan is completely filled will result in a deviation from the Landscape Architect's design (Hargreaves Associates) of Byxbee Park and will not be in compliance with theBaylands-Master~~aIl.----T-<4»"-Operl¥-IDlow any-Otthe-options-that-do-ltoUiU­ the remaining landfill capacity by the end of 2011, Council would need to approve an application to extend the landfill closure date and reevaluate the land rent payments from the Refuse Fund to the General Fund. If closure date is not extended before the landfill has been fully filled then the City would need to contract with a consultant to redesign the landfill's final grading plan and verify that the new design would be seismically stable and could accommodate drainage to regulatory standards. The environmental control systems (gas and leachate collection systems) would also need to be reconfigured to accommodate the modifications. These changes would need to be incorporated in a revised closure plan that would need approvals from the County and State. A landscape architect would also need to review and approve the suitability of the altered plan for the parkland design and the Baylands Master Plan would also need to be amended. A CEQA analyses would also probably be needed. Close composting facility early -Closing the composting facility early is also an option for the ( City. Staff does not recommend this action because diverting the curbside collected yard trimmings would cost the City an additional $56,781 based on 2010 revenues, costs and tonnages (see Table 1 above). Closing the compo sting facility early may require a permit revision and would also require the purchase and importation of 15,000 to 20,000 cubic yards of compost for closure at an estimated one time cost of $200,000. RESOURCE IMPACT The recommended actions reduce the operational costs of the landfill and minimize the cost of processing curbside yard waste. The recommended actions also minimize the costs over a 5-year budget forecast CMR:381:10 Page 7 of8 POLICY IMPLICATIONS The recommended actions are consistent with existing Council policies. set forth in the Baylands· Master Plan. The recommended action may result in a temporary decrease in the City's waste diversion goals, but the City is not expected to fall below the 50% goal required by AB 939. - ENVIRONMENTAL REVIEW The recommended actions are related to the ongoing operation of existing facilities and do not constitute a project under the California Environmental Quality Act (CEQA). ATTACHMENTS Attachment A: Financial Analysis of Options for Continued Grinding Operations Attachment B: Timeline and Decision Pathways for the Four Landfill Options :::c~y~mxSOO~P=~:;t)F~~ DEPARTMENT HEAD: CITY MANAGER APPROVAL: CMR:XXX: 10 MATTHEW A. RASCHKE Senior Engineer GL~~sl Direct r of Public Works Page 8 of8 Table 2 Financial Analysis of Opti~ns for Continued Grinding Oper~tions Grinder Option: I 1a . 1b 2 3 Refurbish Refurbish Attachment A 4 5 6 Grinder Grinder I Continue to Nf. Engine New Grinder Used Grinder lease Grinder Best Case: Worst Case: Contract Out 6 onths to 6 months to 6 months to 6 months to 3 months to fix 6 months to fix until Closure fix nd permit obtain permit obtain permit obtain permit Contract Costs I $54,000 1 $108,000 1 $216,000 1 1$108,000 1 $108,000 1 $108,000 1 $108,000 RepairCostl $201,8531 $201,8531 $0' 1$237,1791 $01 $01 $0 Purchase Costl $0 1 $0 1 $0 t I $0 1 $400,000 1 $250,000 1 $0 Lease Costl $0 I $0 I $0 I $0 I $0 I $0 I $234,000 In-house maintenance Cost! $78,000 1 $78,000 1 $0 1 1 $78,000 1 $36,000 1 $36,000 1 $36,000 subtotal I $333,853 , $387,853 , $216,000' 1$423,179 , $544,000 1 $394,000 I $342,000 Estimated Salvage Value' ($150,000)/ ($150,000)/ ($40,000)/ ($150,000)1 ($250,000)/ ($150,000)1 ($40,000) Total Costl $183,8531----$237,853' $176,000 1 1$273;179 1 $294,000 1 $244,000 1 $302,000 Current Monthly Contract Cost: $18,000 3 6 Months needed for fontract Grinder Services 12 6 6 1. Assumes that grinding operations end when landfill ceases accepting waste. 2. Assumes that landfill life is shortened by diverting curbside collecte waste into the landfill. 10/19/2010 6 6 Page 1 of 1 ~ ~ > Decision to Apply for Closure Timeline Extension and Continue Commercial Ban Accelerate Filling with Curbside Garbage and Lift Commercial Ban Decision to Suspend Landfilling and terminate City Operations October 2010 Option 2 “As-Is” Option 1 “Fast Fill” Option 4 “Stop Filling”Timeline May 2011 Landfill Reaches Capacity Mid 2015 Sept. 2011 Landfill Reaches Capacity Mid 2013 Late 2013 Early 2014 Mid 2012 Landfill Capped and Closed Landfill Capped and Closed Mid to Late 2011 Immediately Divert waste from SMaRT ® Station lowering the overall AB 939 waste diversion rate slightly by 4 to 5% Cease all operations including composting Abbreviations AD – Anaerobic Digestion CEQA – California Environmental Quality Act EIR – Environmental Impact Report GHG – Greenhouse Gases LEA – Local Enforcement Agency Decision to Cease Accepting Self-haul Waste from the Public. Accept City Operations Waste & Curbside Yard Trimmings Only. Option 3 “Slow Fill” Council Decision on AD Facility NO Permit OK’d & operational change can be implemented Closure Extension Approved Council Decision on AD Facility Permit OK’d & operational change can be implemented Council Decision on AD Facility Final AD Facility Feasibility Study and Draft CEQA Workplan Released YES Develop plans for AD Facility, Project EIR, amend Baylands Master Plan, amend Comprehensive Plan, obtain revised landfill closure plan approval Landfill closure construction integrated with AD Facility Development Council Decision on AD Facility Accelerate Filling with Curbside Garbage and Lift Commercial Ban Initiate Grading Plan Revision, ballot measure, CEQA & permitting YES Develop plans for AD Facility, Project EIR, amend Baylands Master Plan, amend Comprehensive Plan, obtain revised landfill closure plan approval Landfill closure construction integrated with AD Facility Development Initiate Grading Plan Revision, ballot measure, CEQA & permitting NO Landfill Reaches Capacity Landfill Capped and Closed Accelerate Filling with Curbside Garbage YES Develop plans for AD Facility, Project EIR, amend Baylands Master Plan, amend Comprehensive Plan, obtain revised landfill closure plan approval Landfill closure construction integrated with AD Facility Development Initiate Grading Plan Revision, ballot measure, CEQA & permitting NO Landfill Reaches Capacity Landfill Capped and Closed Hire contract services to complete landfill using curbside garbage diverted from SMaRT ® YES Develop plans for AD Facility, Project EIR, amend Baylands Master Plan, amend Comprehensive Plan, obtain revised landfill closure plan approval Landfill closure construction integrated with AD Facility Development Initiate Grading Plan Revision, ballot measure, CEQA & permitting NO Cease accepting self-haul wastes This option also needs an initial decision on additional landfill rent. This option also needs an initial decision on additional landfill rent. This option also needs an initial decision on additional landfill rent. ATTACHMENT B Footnotes LANDFILL OPERATIONS ALTERNA IVES Attachment C for October 19,2010 Option: 1 2 3 4 Close ( peratlons to the Public Continue As"s (7·days per (City ~f erations waste and Temporary Suspension of Description: Fast Fill (divert SMaRT waste) week) until capacity Is reached curbsk e yardwaste only) landfill Operations A Closur& Extension NO YES YES YES Request Needed -------_ ... _---.. --_ ...... _---------.............. _------_ .. ······Needs·EiideiiSion·&new······ ·······iii eds·exteiiSion·&·new······ ······Needsextenslon·&·new······ B Landfill Rent Schedule No change required FY 2011 Estimated Cost ----------.. ---.. ---------.. -----.. -.. -----_ .. __ .. -••••••••••••• !9[!.l~!!!!.l.r:!L •••••••••••• ---------• ••• ~.9.~~1!l~!I.L ••••••••.•. • ••••••••••••• I!9.I"!~!!'~!:'L ••••••••••• C to Refuse Fund (only Landfill related revenues $3.6M $4.1 M $4.4M $4.6M and costs) ............. ----.. ---_ ..... _--......... _ ... ------_ ........... --... _---..... _ .. _----------.. -_ .... -----......... -........ ---------_ .. _------.. ---_ .......... __ .... ----------.. -... _ .......... ------------........ -.... -.. ----_ ........ __ .. _- D Affect on City Operations Provides only minimal time for transfer Provides time for transfer facility Provid ~s time for transfer facility Transfer facUlty for City operations facility development development development will not be ready in time E Regulatory Approval -------_ ...... _-----_ ....... _--_ ... __ .... _----_ ............ ---·3-s·months·for·trickiirig·Closure· ............... _ .. ........ _-... -.. -----............................ _---------_ ........... _ .. -------_ .... _ .. _ .... _------....... No permit revision required . 6·12 r nonths for permit revision . 6·12+ months for permit revision Time ........ -... -.... -................ _ .......... -.. _ .... _--_ ........ _ .... _-_ .. .!!!y~.(fJ!'I.l!Y.!:'~~f!.p.~!!!'!t.!'!'.'!l~.2.lJt _ ...... _ ...... __ .. _-_ .............. _ .. _ ............ -_ .. _ ........ __ ...... _ ........ _ .................. _ .. _ .. _ .. -........ F Layoffs after regulatory None until filling is complete None untn filling is complete 1/3rc1 Is yoff until filling is complete All except post-closure staff aooroval G Exlstlna EQuipment ::::::E~;.P:yn~imliji.9Ii£QIDp.~t~:::::: :::E~p.!!Q!~:fj~IQa!!:Q9:~.EI~!~:::: ::::E~ :yn~imI~Ii:~QroP-~~:::: ::::::::§~npi!~[I!~ii~:y~!!~::::::: H Existing Compostlng Close 6 months after filling is complete Close 6 months after filling Is Not 0 en to public, cease after End permanently after regulatory Operation ........ _ .. __ .. _---_ ......... ---_ ... __ .. -.... __ ..... -.. -.. _ ........ -.. .....•........ ~!!!PJ!t~ .•....•...•••. .. ................ • ••••• 9!Q~.~~ •••••••••••••••• • •••••••••••••• ~PJlr9X~!.. •••••••••••• I Grinder Refurbishment Not recommended Recommended Recommended Not recommended Contract· CMR 304:10 -_ ...... __ ........ _-_ .......... _ ...................... -.. -............ _ .. _ .. r·································_····· J Estimated tlmeframe to Capacity filled by mid·late 2011 2012-2015 depending on AD ····i(j1~ .2'61S·deperidlng·on·AO··· ···2'61·i:i015deperi'din,jon·AO··· reach C8.J)acitv _ ........ __ .. _-_ ................ -.... __ .... __ .. -...... _ ...... _----.. -••••••••••••••• g~.qLl!.iR.IJ •••••••• _ •••••• • •••• .l!~S:!!l19.!! ••••••••••••••• ••••••••••••••• ~~91!lQD ••••••••••• _ ••• Estimated tlmeframe K when parkland 2013 Mid 2013 at the earliest M d 2013 at the earliest Mid 2013 at the earliest construction could begin ........ __ .............. __ .. -............................ __ .. _---_ .......... -_ .... __ .... _ .... _ ...... _ ............................ __ ................ .... _-_ .. _ .... ............... -............ _ .. _ .. -.. -.......... -.... -.. .. _ .. -.... _ ....... _ .. -...... _ ........ -.. -...... _ .......... _-_ .. _ .. Relative Impact on L potential 9 acre AD Highest Impact Medium Impact Low Impact Lowest Impact Facility Site ........ _ ......................... _ ........ -.. -.. _-_ .... _ ............................. ... ....... -....... -.... _---................ _ .. -......... -.. -_ ....... __ ... ... -.. ------.... -_ .................... -..... -.. _ .... __ ............. _ .. .. _ ................ _ ............ _-_ .. _ ...... -............. _ .. _ .. -.... More landfill operational constraints Variations: 1) Lift Commercial Optlon-speclflc due to more tonnage and more Ban or 2) apply for permit revision Regulatory approval may be Comments: vehicles in last remaining (more to reduce operations to 5 days per difficult to obtain week that was approved by limited) fill area. Finance Committee on 7/20/2010 ........ _ ...... __ .... __ ...... _ ...... -.. __ .. _ ....... _-... _ ....... _ ............ _--_ .. _ .... _ .. _ .. _ ...... __ .. _ .. _ ............................ -.......... .... _-_ ....... -....... _----_ ... _ .. _ .. --......... _ ............... _ .. -............... _ .. _ .. _ .. _ .... _--_ ............. _-_ .. _ ... _ .... _ .. _ .. Assumptions: 1. All options assume that landfill would be filled to capacity as planned in the current Baylands Master Plan if s n AD Facility is not feasible. 2. Options 3 and 4 would eventually rectuire the diversion of SMaRT waste to complete grading plan per the cu rent Baylands Master Plan. 3. Option 4 requires a contracted labor force and equipment to complete grading plan per the current Baylands Master Plan. 4. Operational changes that require a permit revision cannot be made until regulatory approval is obtained. Op ion 1 can be implemented at any time. 5. Option 2 uses a 7 -day operation schedule to allow for an easier transition into a fast fill scenario with SMaRT waste if desired. 6. As of May 2010, apprOximately 100,000 cubic yards of waste would need to be excavated and relocated to p repare a 9 acre pad for an AD Facility 7. Based on the approved final landfill grading plan, if an AD facility is approved after closure then 122,000 cub c yards of waste would need to be excavated and relocated. 8. Costs to prepare a site for a potential AD Facility are not included in any of the cost estimates shown (i.e. the cost to excavate and relocate covered and compacted garbage. 10/19/2010 Page 1 of 1