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HomeMy WebLinkAboutTenakee Springs Energy Infrastructure Projects in the Community of Tenakee Springs Aug 23, 2004CONCEPT DESIGN REPORT AND CONSTRUCTIONCOST ESTIMATE FOR ENERGY INFRASTRUCTURE PROJECTS IN THE COMMUNITY OF: TENAKEE SPRINGS PREPARED FOR: STATE OF ALASKA ALASKA ENERGY AUTHORITY/ RURAL ENERGY GROUP PREPARED BY: Alaska Energy and Engineering,Inc._Mailing Address -P.O.Box 111405Anchorage,AK $9511-1405(907)349-0100349-8001 FAX "SeayFe.2ASEay>itatAugust 23,2004 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering EXECUTIVE SUMMARY This report has been prepared by Alaska Energy and Engineering,Inc.(AE&E)for the Alaska Energy Authority /Rural Energy Group (AEA/REG).The purpose of this study is to provide a concept design and construction cost estimate for the following potential energy infrastructure projects for the community of Tenakee Springs: e BFU (Bulk Fuel Upgrade)Project -The upgrade of existing fuel storage/handling facilities e RPSU (Rural Power System Upgrade)Project -The upgrade of existing power generation/distribution systems e Hydroelectric Project -The construction of a new supplemental hydroelectric generation facility All project components are dependent on available funding.The City of Tenakee Springs (City)is the only participant in each of the projects. October 6th &7th,2003,David Lockard of the Alaska Energy Authority /Rural Energy Group (AEA/REG)and Steve Stassel of Alaska Energy and Engineering (AE&E)performed a site investigation to determine community energy related needs in Tenakee Springs.A meeting was held at 7:00 PM with local officials and interested community residents to discuss potential energy infrastructure projects. There have been two subsequent trips by representatives of AEA/REG and AE&E on 2/18/04 and 6/8/04 to gather additional field data. The City tank farm is in poor condition and in need of replacement.The existing tank farm site will be enlarged to provide adequate area and set-backs for construction of the new tank farm and power plant.The fuel dock has adequate area and set-backs for gasoline dispensing and marine diesel transfer facilities. 'None of the existing City tanks are suitable for reuse.Four new tanks located at the City bulk fuel site will be required to meet the projected fuel storage and dispensing requirements for the community.The City bulk tank farm will have a gross storage (tank shell)capacity of 22,000 gallons of #2 diesel fuel,22,000 gallons of #1 diesel fuel,and 21,000 gallons of gasoline for a combined gross storage capacity of 65,000 gallons.Fuel will be delivered to the bulk tank farm by barge. The existing City power plant building is in poor condition,is supported on an inadequate wood pile foundation and is not located on City property.The power generation equipment in is in poor condition and in need of replacement.A new prefabricated modular power plant will be collocated with the new tank farm on City property.The new power plant will include three new generators, programmable automatic paralleling switchgear,a fire suppression system,critical grade exhaust silencers,as well as all required engine coolant piping and ventilation equipment. Existing power distribution will be upgraded to provide three-phase power throughout the majority of the community.A new community feed step-up transformer will also be installed near the power plant. Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering Depending on funding availability a supplemental hydroelectric generation facility may be installed on the Indian River approximately one mile northeast of the community of Tenakee Springs.The hydroelectric project would include:a diversion structure;a approximately 1400 foot long penstock;a power house;a cross flow turbine;automatic paralleling switchgear;an.approximately one mile long shallow bury transmission line;access trails to the power house and diversion structure;and upgrades to a portion of the existing community overhead power distribution. The proposed project schedule calls for design and permitting of the BFU and RPSU projects to occur simultaneously and to be completed by the winter of 2004/2005,for construction from May through July 2005,with the facilities fully functional by August 2005.If funded,design and permitting of the hydroelectric project may be completed by the winter of 2006/2007,for construction from May through September 2007,with the facilities fully functional by October 2007. The total BFU &RPSU project cost including all design,supervision,inspection, permitting,and a 15%contingency is estimated to be $1,813,411.The estimated cost of the BFU portion is $870,940 which equates to a unit cost of $13.40 per gallon based on a gross storage capacity of 65,000 gallons.This is within the Denali Commission benchmark cost range of $14.00 to $12.00 per gallon for 50,001 gallon to 100,000 gallon capacity tank farms.The estimated cost of the RPSU portion is $942,471 which equates to a unit cost of $3,491 per kW based on a total installed capacity of 270kW.This is within the Denali Commission benchmark cost range of $3,500 to $2,900 per installed kW for 201kW to 400kW capacity power plants.The estimated cost of the hydroelectric portion is $2,229,975. Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering INDEX EX@CUtiVe SUMIMALY.........cceeesceeeeeessreeetensnneeteesaaeeeseaaeeeeneeaeaeeseeaeeetsaeeessanerseseeeeeetses Page i INGOX oeeeeeeccceeseseesseecnenaseanenaneaneneneeeeaeeseneeseserereeeeeseteauaaeasucssanaaaeeeeeesseneseaeeeanenees Page iii Acronyms and Abbreviations...ceseccessssseeeeesseeeeseeeneeeeesseeeeesseesneneeeesaeeeesees Page v 1.0 INtrOCUCTION .......i cecceessesceneeeeeeeseessaeeeeeseneseaaeeeeeeesessuaceeererseaeeeetessnneeeseeeteees Page 1 1.1 Program OVErVieW ...........cccccceeeeeesecceeeseesessaceececeecssesenseeesecsneeersseenseeeneess Page 1 1.2 Community DeSCTIPTION .............ccceeeesessnsseeeeeeeeeeseecceeseceessnssseeeeeeeeseeesees Page 2 1.3 Site INVeStigation .....eee eeeeeeseseneeceeeeeessenseeeeeeeessssereceesseeeeecessensesensens Page 2 1.4 Code AnallySis 200.0...ccceeceecceeceeeeesseneceeeeeessssaeeeceececesnueeesesseaseusesseeueeeeeeess Page 3 2.0 Existing Fuel Storage Facilities -Function and Capacity .............:.cccessssssnees Page 4 2.1 Existing Equipment Suitable for REUSC...............ccescceeseesseeeeesssneeeesesseees Page 5 2.2 Demolition of Existing Tanks ...........cccsscccesesssssesseceessssseeeeesssneeeeeesses Page 5 3.0 Current Fuel CONSUMPTION.................cscceeeeeeeeeeeeeeeeceececaassaaseessseceeaseaseneeseeneess Page 5 3.1 Planned Infrastructure Improvement ............::cccccccccessssseeeeesssneeeeesesserees Page 5 3.2 Alternative Energy/Efficiency Improvements...............ccc:cccceeseseeeeeeeeeees Page 6 3.3 Tank Capacity Requirement.................cccssesssssssssesseeececeesessesseseeeeeseeeens Page 7 4.0 Site SClCHiON 0...eeeeeseseseeseeseecceceeecccecesecsesceesenaasseeceeseseceeeeereeereseseeeeeneeas Page 7 4.1 City Tank Farm/Power Plant Site 00.0.0...ceecsesssssecesssnecesenseesssseeeessneees Page 7 4.2 "E"Street Right of Way...eeecesssssecsssseeceessssseesessesessssseessseseeesseeees Page 8 4.3 City Fuel Truck Loading Site...eessscecessesseeceeseneesssseesessseeessnene Page 8 4.4 City Fuel DOCK..........ee eee eee ceeceecsseneeceeceeeeeeeessesssesessssscssneeeeseeeeseeessseeaees Page 8 4.5 Hydroelectric Project Site...eee sseeeeseeseeessceeeeeseneeseseeeseceneseeseneeees Page 9 4.6 Site COMtrOl ......ee eeeeeeeeeeeeeeceeeeeeeeeceeceeeeceeeeeeeneeaesceeeeseeeeeeseeseeeeeeeseeeneees Page 9 5.0 Proposed Facility D@SCIiIPtiON «00.0...el ee ee eeeseneeeeceeeeeaeeeceeeeeeeeetesnsaeeeeeeeeeees Page 9 5.1 Bulk Fuel Upgrade .........eececcsseessecsssssstsssssssseecceececccescsaeeeeeeeeeeaseceeenees Page 10 5.1.1 Secondary ContainMent.............e.ceecccsesssesseeececeessssteceeessenseeeeeseae Page 10 5.1.2 Tanks .......ccceeeeeeeeseeeeeseccaacceceeeeeeseeceesesscaeacsnsuaeecensseeeeceesssecsuaeneeeees Page 11 5.1.3 Piping/Valves/PuMpS/ACCESSOTIES ............eceseececeeeeteeceeeeeeeneeeeetenees Page 11 5.1.4 SOCUTILY .oo cece eeeeeeeeeeeseeeeeeesssenacesteesssaaeassenesesseeeesesseneneeseeeegea Page 12 5.2 Power System Upgrade ...........ee eeeseenseeeeeeceneeeeeeereceeeeteeeceeeeeersseeereeses Page 12 5.2.1 Existing Power Plant...cccsceeessssneeseesseeusaneeseeeseseeesseneeeeeeses Page 12 5.2.2 New Single Module Power Plant ............cccecccecccseeereeseesesceeceeeerenees Page 13 5.2.3 Generation EQuipMent ..........ccecccccecceeeeeeeeeeeeeseeeeseeeeeteeeeseeeeeeeeeeees Page 13 5.2.4 Power Distribution Upgrades..............cccccccccesssssssetsereeeeeteeseeeerereeeees Page 14 5.3 Hydroelectric Project 0.0...eee sseesessceeeeeeessseeeneeseesesseeeesssseeessesenseneeaes Page 14 5.4 Proposed Operating SCenario..........ee eeseeeeseeseeeresseseeteseeseneeeneeeeeens Page 17 6.0 Permitting and Spill RESPONSE...ee ee seeeseeeeeee cesses eeeeeesteeeeesaesseeeeseess Page 17 6.1 Environmental ASSCSSMENL........eee eeeeeecessereeeeeesesensseueeseseeeseeeeseeanees Page 17 6.2 Hydroelectric Project Permitting...ecssesessseeeseeeeeseeeeeereeeeeene Page 18 6.3 Fire COdG oo cccccceccceeeeeeesenesseeeeeeeeeeeeersesersneeaaeuseessesesesesesssenseeeenenees Page 18 6.4 Spill RESPONSE 200...eee eee ee sere eeessseeeensesseeeseeseesesesaseeeseeaeeeneesenseeas Page 18 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 7.0 Construction Plan .........ccccsesscccceeeeeeeeeeenseeneaeeeeesenesaaeeeteneeaaeeseeeetesnsanaaeeeeeees Page 19 7.1 Local Job SKINS 0...eccssccee cee eeeceeesecesensaceeeeseesasaceseeeecnseseeeereeseeaaeanees Page 20 7.2 Local Equipment ............cccccceceeeeeeeesseeeeeessaceeeeceessneeeeeeeeneeaeeeeeeseeeseaaaenees Page 21 7.3 Material SOUFCES .......cccccccscscseceeseeeesessesseseseseenes becesassesusuceeseseesseecnenesetaas Page 21 8.0 SCHECUIC L000...cece ceccceeneeececeeeeeeteeeeeeeeesteceeeeeseeetesecaeneaeaneeeeeeeetereterseneeteeetees Page 22 8.1 BFU &RPSU Project Schedule 2.0.0...ee eecseeeereeeseceeeneeeeeseeenseneees Page 22 8.2 Hydroelectric Project SCHECUIE ........cee seesssennerecceeeeeteeterteeereeeeenees Page 23 9.0 Cost Estimate .........ccc cccceeeeesceeeeeeeeeneeeeeeeeeeeeeeesesseccenenaeeseseeeterterteseeteeeeeees Page 24 Preliminary Design Drawing6...............::::::cseseeeeeceesecessesenneeeneeeeeeeeeenseseeeseeteneess Appendix A Construction Cost Estimate ..................eeeeeeeeeeeeeeeseeeeesssceneaeneeeeeeeeeteteeseeseeeeeenes Appendix B Site Control DOCUMENHS .0000.....eee e eee eeeeeeeseeseeeeceeeeeeneneeseneaaeeeeeeteeeeeereeeeteneeeneeegs Appendix C Geotechnical Data ...........ccccccccccecssssssseeeessssssessesecsseseeceeneeeeeeeseeseeeeeeseeseetensesens Appendix D Hydroelectric Review and AnalySiS...............cesceesseceeeeseseeeeeeeteseeeeeeeetereseneeeese Appendix E Community CorreSpondence.............::c:cssessssceesssssssseeeeeceeeeeceesessenecsueetsseenseenes Appendix F Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering ADCED ADEC AEA/REG AIDEA API ANTHC BFU CDR COE CSD DC DOT EPA F GPM HUD ICDBG IFC MLLW MSR NEC NFPA NFS RPSU SHPO SPCC USCG USCOE USS ACRONYMS AND ABBREVIATIONS Alaska Department of Community and Economic Development Alaska Department of Environmental Conservation Alaska Energy Authority/Rural Energy Group Alaska Industrial Development and Export Authority American Petroleum Institute Alaska Native Tribal Health Consortium Bulk Fuel Upgrade Project Conceptual Design Report U.S.Army Corps of Engineers Chatham School District Denali Commission Alaska Department of Transportation and Public Facilities U.S.Environmental Protection Agency degrees Fahrenheit Gallons Per Minute Housing and Urban Development Indian Community Development Block Grant International Fire Code Mean Lower Low Water Mineral Spring Reserve National Electric Code National Fire Prevention Association non-frost susceptible Rural Power System Upgrade Project State Historic Preservation office Spill Prevention Control and Countermeasures United States Coast Guard United States Army Corps of Engineers United States Survey Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 1.0 INTRODUCTION This report has been prepared by Alaska Energy and Engineering,Inc.(AE&E) for the Alaska Energy Authority /Rural Energy Group (AEA/REG).The purpose of this study is to provide a concept design and construction cost estimate for the following potential energy infrastructure improvement projects for the City of Tenakee Springs: e New bulk fuel storage and fuel handling facilities. e New modular power plant and power distribution upgrades. e New hydroelectric generation facility located on the Indian River For the purpose of this study,the term "diesel fuel"refers to all fuel oil products used for space heating,electrical generation,and heavy equipment operation. The City of Tenakee Springs (City)is the only participant in the project. 1.1 Program Overview The Alaska Energy Authority (AEA),Rural Energy Group is pursuing grant funds to upgrade rural bulk fuel tank farms and electric power systems.All project components are dependent on available funding.Following is a brief outline of the program: e Most of the funds are federal and provided through the Denali Commission (DC).Other federal funding may be available from HUD (ICDBG)and the Environmental Protection Agency (EPA).Additional funds may be available from the State of Alaska,through the Department of Environmental Conservation and the Department of Education. e In order to receive grant funds,each community must demonstrate that the proposed facility will be sustainable by accepting a business plan.The business plan shall describe who will own the facility,and how it will be operated,maintained and replaced. e New energy projects are funded,designed,and constructed in three phases: Phase 1,Conceptual Design;Phase 2,Design Completion;and Phase 3, Construction. e During Phase 1,Conceptual Design,staff from AEA will visit a community, discuss the program,and work with residents and the local government to select sites for the new facilities. e At the completion of Phase 1 Conceptual Design,the community will be requested to review and approve the location,capacity,and basic configuration of the facilities as well as a draft business plan. e During Phase 2,Design Completion,the design for the new energy projects will be completed.An environmental assessment will be prepared and site control documented.A business plan will be prepared for signing. e Each community will be requested to provide "in kind”contributions by providing the land for the new tank farm and free use of local heavy equipment.The grant funds pay for equipment fuel,maintenance,and repairs of equipment during construction. 1 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering e Project may include local hire and construction trade training programs, subject to Denali Commission funding. e If construction funding is awarded then the business plan will be sent for signature and construction procurement will start. e Ineligible Projects:Funding is not available through AEA for buildings, propane facilities,fuel tank trucks or trailers,fuel to fill the tank farm, operation &maintenance costs,or residential tank upgrades.Loans for fuel tank trucks and trailers may be available through USDA. e Training Available:AEA has several training programs available for communities. 1.2 Community Description Tenakee Springs is located on the east side of Chichagof Island,on the north shore of Tenakee Inlet.It lies 45 miles southwest of Juneau,and 50 miles northeast of Sitka.It lies at approximately 57.78°North Latitude and 135.22° West Longitude.(Sec.21,T047S,RO63E,Copper River Meridian.)The area encompasses 13.8 sq.miles of land and 5.3 sq.miles of water.Tenakee Springs has a maritime climate with cool summers and mild winters.Summer temperatures range from 45 to 65;winters 24 to 39.The highest recorded temperature is 84,and the lowest recorded temperature is 3.Total precipitation averages 69 inches a year,with 62 inches of snow.The population was estimated at 104 residents in 2000.Tenakee Springs is a second class city and is not a federally recognized Native village.Tenakee Springs is located in the Sitka Recording District and the Chatham School District (CSD). 1.3 Site Investigations An original site investigation was performed by Steve Stassel of Alaska Energy & Engineering,Inc.(AE&E)and David Lockard of the Alaska Energy Authority/Rural Energy Group (AEA/REG)on October 6th &7th,2003.The primary purpose of this site visit was to provide information to the community regarding the AEA programs and to obtain reconnaissance level information to identify community energy related needs.At 7:00 p.m.on October 6 a meeting was held with local officials and interested community residents to discuss potential energy infrastructure projects. A second site investigation was performed by Steve Stassel,David Lockard,and Clois Versyp of AE&E on February 18th &19th,2004.Additional field data was gathered on existing community power generation and distribution as well as existing fuel handling facilities.A power recording device with remote dial-up capabilities was also installed in the power plant. A third site visit was made by John Dickerson of AE&E and Allan Murfitt of A.W. Murfitt,Inc on June 8,2004 to perform a geotechnical investigation of the proposed new tank farm/power plant site and to gather site information on the potential Indian River hydroelectric installation. Prior to the field investigation,available information was obtained and analyzed, including a prior Bulk Fuel Assessment prepared for the AEA/REG,a prior Bulk 2 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering Fuel Facility Relocation Preliminary Feasibility Study prepared for the City of Tenakee Springs,aerial photographs,community profile,survey plats,PCE fuel use data,Corps of Engineers wetlands and flood information,and other relevant data.Additional information and input was obtained from the following individuals: e Shelly Wilson,Mayor,City of Tenakee Springs 736-2207 e Bill Eberhardt,Council Member,City of Tenakee Springs 736-2216 e Bob Pegeus,Kadashan Bay Corp.736-2205 e John Wisenbaugh,Utility Manager,City of Tenakee Springs 736-2207 e Connie Newman,Superintendent (CSD)788-3302 e Sally Sonlichting,Carson Dorn,Inc.,Juneau 586-4447 e Deenie Wilson,Petro Marine Services,Anchorage 562-5000 e Robbie Walters,Power Plant Operator,City of Tenakee Springs e Roger Lewis,Council Member,City of Tenakee Springs e Ken Wheeler,Fuel Manager,City of Tenakee Springs e James,Trail Mix,Juneau 790-6406 e Lee Hanson,Hanson Maritime,Sitka 747-1055 e Paul Weltzin,Sea Level Transport,Juneau 790-3450 e Ken Graves,Ken Graves Construction,Juneau 789-0806 e Alaska Marine Lines,Seattle 206-764-8346 e Northland Services,Seattle 1-800-426-3113 1.4 Code Analysis Prior work performed by the State of Alaska Division of Energy (DOE)included a code evaluation of existing facilities and preparation of a database summarizing results.The existing facilities were reviewed and information in the database verified.The following is a summary of existing facility deficiencies observed: e Improper Secondary Containment (Diking)--The tanks are not within a proper liquid tight secondary containment system of adequate capacity as required by the Fire Code and EPA regulations. e No Emergency Vents -None of the City tanks have emergency vents,in violation of the Fire Code. e No Security Fence -The tanks are currently accessible to the general public with no security fencing.This presents a hazard to the community as well as increasing the chance of a spill or fire due to vandalism and theft. e Improper Piping and Valves -Existing piping systems consist of steel piping with a combination of welded and threaded joints.The threaded joints are particularly prone to leaking.Some valves are made of bronze,in violation of the Fire Code. e Wiring Not in Compliance With National Electrical Code -The wiring for the dispensers does not meet code and presents a potential explosion/fire hazard for employees and customers. e Dispensing From Above-Ground Tanks Without Protective Systems -State Fire Marshall requirements stipulate protective devices and piping systems to 3 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering prevent a gravity discharge of fuel in the event of a failure of the dispenser or piping.No protective devices are installed. e Improper Site Location -The existing City diesel bulk tanks do not meet Fire Code minimum separation distance requirements from adjacent public ways and property lines. The combination of deficiencies poses a significant threat to public safety and the environment.A major project is required to construct a new code and regulation compliant tank farm to meet the long-term needs of Tenakee Springs. The concept design for the new facility has been prepared to meet current code and regulatory requirements which include: e The 2003 Edition of the International Fire Code,including State of Alaska Amendments e The 2002 Edition of the National Electrical Code e 40 CFR,Part 112.1-12,U.S.Environmental Protection Agency Spill Prevention Requirements e 33 CFR,Part 154.30 &154.1030,U.S.Coast Guard Spill Prevention Requirements The design also incorporates appropriate industry standards such as National Fire Protection Association (NFPA)and American Petroleum Institute (API)as well as proven methods and materials that have been used successfully on other rural bulk fuel facilities in similar locations and climates. 2.0 EXISTING FUEL STORAGE FACILITIES -FUNCTION AND CAPACITY The tank farm number below corresponds to the number assigned in the DOE database.The facility was evaluated to determine specific needs and deficiencies.Tanks were visually examined to determine suitability for re-use. The following paragraphs summarize findings for the tank farm: CITY-Tank Farm (#1).The City of Tenakee Springs has recently purchased the community's only fuel storage and handling facility from Kadashan Bay Corporation.The facility consists of three 20,000 gallon in-service and one 12,000 gallon out-of-service vertical steel bulk storage tanks,a three product marine header,a gasoline dispenser,separate hose reels for #1 and #2 diesel marine fueling,and a #1 diesel truck loading hose connection.All dispensing and bulk transfers are by gravity.The tank farm is located on the hillside above and to the north of the fuel dock.Access is by a wooden stairway from Tenakee Avenue.The facility provides storage for virtually all the #2 diesel,#1 diesel,and unleaded gasoline received by the community.The fuel is used for retail sales to the general public and for community power generation.The facility does not meet current code or regulation requirements.The existing tanks are more than 50 years old and the associated piping systems are in poor condition and would not to be cost effective to renovate.An environmental survey was performed on November 11,2003 by Carson Dorn,Inc.The survey included a total of sixteen test holes dug in the vicinity of the tank farm to a depth ranging from one to three August 23,2004TenakeeSpringsEnergyInfrastructureProjects Alaska Energy and EngineeringConceptDesignReport feet.Field screening results revealed significant petroleum contamination in the tank farm area. 2.1 Existing Equipment Suitable for Reuse All of the tanks,associated piping systems and equipment are in marginal condition and would not be cost effective to renovate. 2.2 Demolition of Existing Tanks The scope of this project will also include removal from service of all existing City tanks.All abandoned tanks will be drained of product,the piping will be removed,and the tank connections will be plugged or blind flanged in accordance with current AEA standards and procedures. 3.0 CURRENT FUEL CONSUMPTION Fuel use records were obtained from Kadashan Bay Corporation for 1999 through 2003.The following table summarizes average consumption and existing storage capacity.All capacities are in gallons.Net capacity is calculated as 90%of the tank gross (shell)capacity. CURRENT CONSUMPTION VERSUS EXISTING COMMUNITY CAPACITY Product Average Existing Existing Annual Net Gross Use (1)Capacity Capacity #2 Diesel Fuel 70,000 18,000 20,000 #1 Diesel Fuel 40,000 18,000 20,000 Unleaded Gasoline 24,000 18,000 20,000 Existing Total 141,800 54,000 60,000 (1)Two year average for 2002 and 2003 3.1 Planned Infrastructure Improvements It is important to evaluate the impact of planned near-term infrastructure improvement projects on existing utility systems.New construction and other community improvements can adversely impact the adequacy of existing utilities. Community power generation/distribution and fuel sales are the only public services currently provided by the City of Tenakee Springs and there are no plans for any additional public utilities.Possible near-term future growth includes the construction of a small lodge (five to ten rooms)and up to two additional summer vacation cabins per year.Following is the estimated impact of the future growth: e Heating for new cabins and lodge -3,000 gallon increase in #1 diesel use. e Increased power demand -3,000 gallon net increase in #2 diesel use. 5 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering e New seasonal residents and tourists resulting in an increase in gasoline consumption -allow 4,000 gallon increase in city gasoline sales during summer months. 3.2.Alternative Energy/Efficiency Improvements An analysis of a potential hydroelectric project is included in Section 5.3. The existing City power plant generators are nearing the end of their useful service lives.The current manual switchgear in the power plant does not allow for paralleling of generators.Careful sizing and selection of new generators in conjunction with the installation of new fully automatic paralleling switchgear and distribution improvements will likely result in a slight increase in community power generation fuel efficiency. There are no identified facilities,such as a school or public building,within a practical distance of the proposed power plant location that could benefit from recovered engine heat;therefore,no heat recovery equipment is proposed for the power plant module.Provisions will be made for future installation of heat recovery equipment in the module should a need for the heat arise. The Alaska Energy Authority/Alaska Industrial Development and Export Authority published a draft Rural Alaska Energy Plan dated December 31,2002 as a follow-up report to the previously released Screening Report of Alaska Rural Energy Plan dated April 2001.The Screening Report evaluated a dozen alternative energy technologies other than diesel engine heat recovery.Only wind energy was identified as alternative energy technology warranting further evaluation in the draft Rural Alaska Energy Plan.The draft Rural Alaska Energy Plan identifies Tenakee as a "Potentially Attractive Opportunity”for wind energy development with a benefit/cost ratio of .88.However,a benefit/cost ratio of less than 1.0 does not support Tenakee Springs as a viable candidate for a wind energy program using currently available technologies. The community has expressed an interest in geothermal energy.Limited available data indicates the existing hot spring does not provide adequate thermal energy (approximately 4 GPM at 105F+/-).Prior attempts to locate high quality thermal energy were unsuccessful. A series of energy efficiency measures were implemented in Tenakee Springs by the Alaska Energy Authority in the summer of 2002.These _included replacement of existing lighting fixtures and refrigerators with high efficiency models in several residences and community buildings.A report is available from AEA on these measures,including an analysis of the resulting savings. There are no other known practical energy sources,such as solid fuel or natural gas,currently available at Tenakee Springs.At this time,it appears that supplemental hydroelectric generation and possibly additional end-use conservation are the only viable energy reduction technologies available for Tenakee Springs. Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 3.3.Tank Capacity Requirements Tenakee Springs is located on a year round ice-free port with a deep water dock capable of receiving ocean-going fuel barges.Fuel deliveries by barge are available from at least three different vendors and are scheduled to be in the area at least every two to three weeks.According to fuel delivery records,the community has averaged approximately six barge deliveries per year,spaced from 1 month to three months apart.At least one of the major fuel barge delivery services offers a $0.05 discount on fuel when the total quantity of all products delivered per trip exceeds 20,000 gallons.Based on this delivery schedule and price structure,we have opted to size the facility to hold an approximate two months supply of each product and to have around 20,000 gallons of total available capacity per scheduled delivery with an adequate reserve margin. During peak fuel sales periods,such as commercial fish openings,additional deliveries can be scheduled as required.The following table compares the anticipated future annual and 2 month use for each product to the proposed net useable tank capacity for the new facility: CONSUMPTION VERSUS CAPACITY Product |Est.Est.Proposed |%of %of Proposed Future Peak 2 Net Est.2 |Est.Gross Annual |Month Capacity |Month |Annual |Capacity in Use in Use in in Gallons |Use Use Gallons Gallons |Gallons |(2) (1) Gasoline |28,000 12,000 18,900 157%43%21,000 #1 Diesel |43,000 11,500 19,800 172%46%22,000 #2 Diesel |73,000 15,000 19,800 132%27%22,000 pmlc 144,000|38,500 |58,500 |152%|41%65,000 (1)Current average plus near-term future increases. (2)Net capacity (90%of gross shell capacity) 4.0 SITE SELECTION The majority of all work proposed for the BFU,RPSU and Hydroelectric projects will be restricted to four sites:(1)The "City Tank Farm/Power Plant Site";(2)The "E Street Right of Way"(3)The "City Fuel Truck Loading Site";(3)The "City Fuel Dock";and the "Hydroelectric Project Site”. 4.1.City Tank Farm/Power Plant Site The site for the new tank farm and power plant was selected by the City.In order to provide a single tract large enough for the new facilities a re-plat will berequiredtovacateaportionofanexistingrightofwayandaddaportionofthe adjacent townsite land to the existing tank farm property.The proposed new tank farm/power plant property shown on the attached Site Plan Sheet M2 is large enough to meet all code-required setbacks for the fuel storage tanks and 7 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering power plant module.The existing tank farm site will be left undisturbed during this project to avoid disruption of the petroleum contaminated soil.All new facilities will be located up the hill to the north of this area.Due to the steep slope of the site and potentially shallow depth to bedrock,a series of three narrow benches are proposed for placement of the power plant module,diesel tanks and gasoline tanks.The power plant will be located on the lower bench to make it more accessible for daily monitoring and maintenance as well as for future engine/equipment replacement. A geotechnical investigation of the site was conducted and is included in Appendix D.A preliminary topographical survey was performed during a brief site visit.An additional detailed topographic/geotechnical survey will need to be performed at the site to establish elevation bench marks,provide detailed surface contour elevation data and to establish the depth of bedrock by probe for final design.These tasks will need to be performed early in the design phase. The tank farm/power plant site is well above the level of Tenakee Inlet and there is no threat of flooding there.According to the Corps of Engineers,Alaska Communities Flood Hazard Data,June 2000,the flood of record in Tenakee Springs occurred at high tide on Thanksgiving Day,1984.The high tide that day was 20.7'MLLW.During this flood,waves were washing across the decking of the fuel dock and ferry terminal,an elevation of 24.0'MLLW. 4.2."E"Street Right of Way A new set of access stairs will be constructed in the "E”Street right of way to provide access to the new power plant and tank farm.The three new barge fill/distribution pipelines between the fuel dock and the tank farm will also be routed within this right of way. 4.3.City Fuel Truck Loading Site A truck loading area will be constructed within the Tenakee Avenue right of way near the foot of the new tank farm/power plant access stairs.The footprint of this facility will be kept to a minimum to prevent any intrusion into the Tenakee Avenue roadway.No fire code setback will be required from the truck loading hose stand to the adjacent M.S.R.No.3 property as it is deemed property that cannot be built upon. 4.4 City Fuel Dock The marine header,retail gasoline dispenser,#1/#2 diesel marine fueling station, and portions of the barge fill/distribution pipelines will be located on and under the existing City ferry/fuel dock. Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 4.5 Hydroelectric Project Site If constructed,the hydroelectric diversion structure,penstock,and hydroelectric plant would be located approximately one mile east of Tenakee Springs on the Indian River.The diversion structure would be near barrier number four,in the vicinity of the existing fish ladder.The hydroelectric plant would be at barrier number two,approximately one mile upstream from the mouth of the river.The transmission line and access trail would be routed cross country between the eastern extent of the existing community power distribution system near the small boat harbor to the hydroelectric plant. 4.6 Site Control A Certificate to Plat was issued by First American Title of Alaska effective July 29,2004.A copy of the Certificate to Plat is included in Appendix C.The proposed City bulk tank farm/power plant site is located on property vested in the City of Tenakee Springs.The proposed site is within U.S.Survey 1418, Tenakee Townsite.It includes Lots 6 and 7,Block 11 as well as a portion of Tract 3 (formerly designated Tract 1)and a section of the Chichagof Ave.right of way to be vacated. The truck loading facility ts located within a section of the Tenakee Ave.right of way which is owned by the City of Tenakee Springs.An easement will be delineated for installation of public utilities including fuel pipelines and fuel handling facilities. The barge header,gasoline dispenser,and diesel bulk transfer facility are located on the southern end of the fuel/ferry terminal dock.The fill/distribution pipelines from the barge header to the City Bulk Tank Farm site will be routed under the dock and along the "E"Street right of way.The dock is located within a portion of Alaska Tidelands Survey 524 which is vested in the City of Tenakee Springs."E"Street is located within U.S.Survey 1418,Tenakee Townsite and is owned by the City of Tenakee Springs.An easement will be delineated for installation of public utilities including fuel pipelines and fuel handling facilities. The Polarconsult report states that the proposed hydroelectric project is on "Tenakee land".However,based on initial site control investigation,the diversion/intake structure and a portion of the penstock appear to be on State of Alaska land.If the hydroelectric project is funded and advances to final design the issue of land ownership at the proposed hydroelectric facility site and along the trail/transmission line route would be investigated more thoroughly. 5.0 PROPOSED FACILITY DESCRIPTION The following proposed facility description is separated into three sections: Section 5.1,"Bulk Fuel Upgrade”,describes the proposed new community fuel storage and handling facility;Section 5.2,"Power System Upgrade",describes the proposed new diesel-electric power plant as well as upgrades to the existing electrical distribution system;and Section 5.3,"Hydroelectric Project",describes the potential Indian River hydroelectric installation,including the required access 9 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering trail,cross country transmission line,and upgrades to the existing electrical distribution system for three-phase tie-in. The availability of reliable year-round power generation and access to fuel are basic requirements for the community of Tenakee Springs.A hydroelectric project may have the potential to augment community power generation and reduce long-term energy costs but cannot be relied upon as the prime source of electrical generation due to both predicted and possible unpredicted water flow restrictions.Permitting,design and construction logistics are compatible for the proposed Bulk Fuel Upgrade (BFU)and Rural Power System Upgrade (RPSU) projects.However,the time-line for permitting and design for the hydroelectric project is likely to take much longer.Therefore it is assumed that,if funded,the BFU and RPSU projects will be constructed simultaneously and the hydroelectric portion will be performed separately as a stand-alone project.All cost estimating and construction scheduling will be based on the separation of BFU/RPSU work from the Hydroelectric Project work. 5.1 Bulk Fuel Upgrade The BFU project will consist of replacing the existing tank farm,pipelines and associated equipment in their entirety with a new facility as shown on attached drawings M1,M2,M3 and M4.The proposed new City tank farm will be located on the hillside above the old facility and will provide storage for virtually all of the diesel fuel and gasoline received by the community of Tenakee Springs.The new tank farm will include two each 22,000 gallon bulk storage tanks,one for #1 and one for #2 diesel.There will also be one 15,000 gallon bulk storage tank for gasoline as well as a 6,000 gallon gasoline dispensing tank.A security fence will enclose the tanks. The fuel dock renovation will include new marine fueling stations for #1 and #2 diesel fuel as well as an unleaded gasoline dispenser.The diesel fueling stations and gasoline dispenser will have separate custody transfer meters,hose reels,and nozzles for each product.The installation will also include a new three product marine header as well as fill/distribution pipelines for #1 diesel,#2 diesel, and gasoline.The pipelines will route under the dock,then below grade across Tenakee Avenue,and finally above grade on new access stairs constructed within the "E"Street right of way up to the tank farm site. A truck loading area will be constructed along Tenakee Avenue near the foot of the new access stairs.This facility will be used only for filling the local City- owned fuel delivery truck with #1 diesel.A custody transfer meter and hose stand will be installed within a 6'x6'security enclosure. 5.1.1 Secondary Containment The International Fire Code and E.P.A.regulations require fuel tanks to have secondary containment.The regulations include provisions that allow for secondary containment utilizing double wall tanks with redundant overfill protection equipment.Secondary containment requirements for all bulk fuel storage for this project will be met by using double wall tanks equipped with the 10 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering required overfill protection devices.The gasoline dispensing tank will also be required to be two hour fire-rated due to the close proximity to property lines. Truck loading facilities are required to have secondary containment capable of holding the contents of the largest tanker truck to be filled.The proposed truck loading facility in Tenakee will be used for filling the city fuel truck only.The City fuel truck consists of a pickup truck bed-mounted 300 gallon tank along with a custody transfer meter and PTO powered transfer pump.Secondary containment requirements for this facility will be met by installing a bed-mounted catch basin under the tank with minimum 300 gallon net capacity. 5.1.2 Tanks A total of three bulk storage tanks will be required -one for #1 diesel,one for #2 diesel and one for gasoline.The diesel tanks will have a gross shell capacity of 20,000 gallons will have nominal dimensions of 10'in diameter by 38'long.The gasoline bulk tank will have a gross shell capacity of 15,000 gallons and will have nominal dimensions of 9'in diameter by 33'long.The bulk storage tanks will be shop built double wall horizontal welded steel tanks built and labeled in accordance with UL 142 and equipped with overfill protection. A single gasoline dispensing tank with a gross shell capacity 6,000 gallons will be required.This tank will have nominal dimensions of 8'in diameter by 17'long and will be a two hour fire rated double wall horizontal welded steel tank built and labeled in accordance with UL 2085.It will also be equipped with overfill protection. All tanks will be equipped with level gauges,pressure/vacuum whistle vents, emergency vents,manholes and water draws.The tanks will have steel skid foundations which will be placed on concrete footings sized to limit soil bearing pressure to 1,500 pounds per square foot.The tanks will be coated with an inorganic zinc primer and two layers of epoxy for corrosion protection. 5.1.3 Piping/Valves/Pumps/Accessories All above-grade piping will be schedule 80 steel with a high density polyethylene coating.All below-grade piping will be schedule 80 steel with a high density polyethylene coating and cathodic protection.Above-grade piping will be installed on concrete pads or supported from tanks or structures and secured with steel pipe straps or hangers.All fuel dock piping will be secured with stainless steel strut and pipe straps or hangers.All piping joints will be welded or flanged except for connections to pumps and specialty valves which may be threaded.Sufficient flanged joints will be provided to allow service of pumps and other devices.All connections to pumps and tanks will be made with stainless steel flexible connectors.Each isolated section of piping will be provided with pressure relieving devices to account for thermal expansion of product caused by temperature fluctuations.Provisions for movement of the piping caused by thermal expansion and contraction will also be included.All valves will be steel body industrial grade valves intended for use with fuels. 11 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering Three 3”diameter fill pipelines will be routed from a new marine header approximately 600'feet to the tank farm.A drip pan will be provided at the termination of the fill pipelines (marine header). A truck loading facility will be provided to allow the City tanker truck to be filled with #1 diesel from the City bulk storage tank.The truck loading equipment will include a submersible pump on the #1 diesel bulk tank,a filter,a custody transfer meter,a section of 1-1/4"hose,a 1-1/4"bulk transfer nozzle,and a static grounding line. A marine fueling facility will be provided on the fuel dock to allow bulk transfers of #1 and #2 diesel to marine vessels.The marine fueling equipment will include:a submersible pump on the #1 diesel bulk tank;a submersible pump on the #2 diesel bulk tank;two each actuated ball valves for submersible pump anti-siphon protection;two each filters;two each custody transfer meters;a manual rewind 3/4"hose reel and nozzle for #1 diesel;a manual rewind 1-1/4"hose reel and nozzle for #2 diesel;and two each actuated ball valves for automatic isolation of the marine fueling facility from the #1 and #2 diesel barge fill pipelines. A gasoline dispenser will be provided on the fuel dock to allow dispensing of gasoline to marine vessels as well as into four wheelers and small containers on the dock.Gasoline dispensing equipment will include:a submersible pump on the gasoline dispensing tank;an actuated ball valve for submersible pump anti- siphon protection;a filter;a custody transfer meter;a manual rewind 3/4"hose reel and nozzle;and an actuated ball valve for automatic isolation of the gasoline dispenser from the barge fill pipeline. 5.1.4 Security The City tank farm will be enclosed by a 6'tall chain link fence with a 1'high barbed wire top.A pair of 3'wide access gates will be provided into the fenced enclosure.The gasoline dispenser as well as the marine fueling and truck loading facilities will be installed within post structures with concrete floor slabs, metal roofs,and full-height chain link fence walls.All valves will be provided with - lockable handles to prevent theft and vandalism.Pump controls will be installed within fenced security areas or buildings.Area lighting will be provided at the tank farm for security and spill detection and to enhance winter operation. 5.2 Power System Upgrade The RPSU project will consist of replacing the existing power plant in its entirety with a new modular power plant located on City property as shown on attached drawings E1 and E2.Proposed distribution upgrades include the installation of a step-up transformer bank and the conversion of approximately 1,200'of existing single phase overhead distribution to 3-phase. 5.2.1 Existing Power Plant The existing City-owned power plant is located on beach front property owned by LeCano Investments,LLC who recently purchased it from Kadashan Bay Corporation.The building is an old wood frame structure supported on a wood 12 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering pile foundation.The City does not have a long term lease that guarantees the continued availability of this location for community power generation.In addition,the existing generators,both of which are near the end of their useful life,are experiencing excessive bearing wear from engine vibration due to the inadequate support provided by the existing building's wooden pile foundation. 5.2.2 New Single Module Power Plant The proposed new power plant will include three new generators,programmable automatic paralleling switchgear,a fire suppression system,critical grade exhaust silencers,as well as all required engine coolant piping and ventilation equipment.The engine cooling system will consist of 3"copper coolant supply and discharge piping manifolds and dual remote radiators with variable speed control.Provisions will be made in the coolant piping for the installation of a single thermostatically controlled 3-way (Amot)valve and a flat plate heat exchanger in the future should a use for the recovered engine heat arise.A new automatic fill 100 gallon fuel oil day tank will be installed.It will be equipped with redundant overfill protection and alarm systems,a hand priming pump,and a totalizing meter.A used oil blender will also be installed to automatically mix used lubricating oil with diesel fuel in the day tank.All new welded steel fuel and lube oil piping will be installed.The power plant will come pre-assembled in a 14'-8"W X 36'-8"L modular skid-mounted building. 5.2.3 Generation Equipment A power recording device was installed in the community power plant on 2/18/03 and removed on 6/6/04.According to the recorded data,daily peak generation loads range between 50kW and 75kW and daily minimum loads range between 35kW and 45kW.Total community generation loads are reported to be fairly consistent from summer to winter,with a higher number of active services in the summer but with a higher average load per service in the winter.It is anticipated that loads will remain constant or grow only slightly over the next ten years. Based on this data it appears that the existing 111kW rated generators are oversized for the community loads.The new system should have two generators sized to handle the normal peak load and one generator sized to handle the nighttime load.The automatic paralleling switchgear will allow any combination of generators to be operated in parallel if required to meet occasional extreme peak loads or to accommodate future community growth.Therefore it is proposed that two each 98kW peak (88kW prime)capacity and one each 74kW peak (64kW prime)capacity generators be installed,for a total installed capacity of 270kW. The new switchgear will have a total of 4 sections -one for each generator and one for the master control and distribution.The switchgear will be fully automatic with paralleling capability and will utilize a programmable logic controller (PLC)to automatically match the running generator(s)to the community load.Optimum fuel efficiency is achieved by matching the generator to the load.This style of switchgear has been used successfully on several recent Energy Authority projects.The distribution section will include two feeders each with separate 13 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering circuit breakers and metering -one for power plant station service and one for the community distribution.A totalizing meter will also be installed to record the total power generated. 5.2.4 Power Distribution Upgrades The existing 300kVA (3@100)208V to 12.47kV generation step-up transformer bank will be replaced with a new 150kVA,3 phase,480V to 12.47kV transformer to match the new power plant and existing community distribution voltages.The new transformer will be pad mounted and located in the vicinity of the existing community feeder pole for ease of connecting to the existing distribution system. The existing community power distribution system consists of 3,200 feet of three- phase overhead power lines within the core of the community with single phase extensions to the east and west.The eastern extension consists entirely of single-phase overhead distribution and runs approximately 1,300 feet to the marina.A pole-mounted single-phase 50 kVA,480-volt,single-phase transformer is used to provide service for the marina.The extension to the west begins with approximately 1,200 feet of single-phase overhead distribution followed by approximately 2,800 feet of buried service.The buried service is wired for three-phase distribution but only a single-phase is energized due to the limitation of the single-phase wired overhead section separating it from the three- phase distribution within the community core. In discussions with the City,it was noted that there have been problems balancing the load.This could be due to the fact that the 4,000 foot long single- phase extension to the western edge of the community connects approximately 10 customers.There is a plan to develop some property on the single phase section of line that would increase the number of customers.With the small kW community electrical load,it is important to balance the overall load on the new generators.This cannot be properly done without three-phase power in the vicinity of most of the services.While the majority of the electric services are located in the main part of town,which has three-phase power,most of these services are small buildings with a small electric load.On the west end of town served by the single phase line,the homes are larger and typically use more power than homes in the main (three-phase)part of town.Additionally,it is expected that the west end of town will experience the greatest amount of growth and new loads.Therefore upgrading the west end of the distribution from single- phase to three-phase will be required to accommodate future growth and to balance the system for peak efficiency.This will require the installation of two additional overhead conductors supported on new cross arms mounted to approximately six existing power poles. 5.3 Hydroelectric Project In 1984 the U.S.Army Corps of Engineers (USCOE)published a study entitled "Tenakee Springs Alaska,Small Hydropower and Related Purposes Interim Feasibility Study".The study analyzed a proposed 265kW hydroelectric generation and community water supply project to be colocated on Indian River. A follow-up study based on several alternatives for a smaller 125kW project 14 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering without community water supply entitled "Tenakee Springs Hydroelectric Feasibility”was written by Polarconsult Alaska,Inc.in 1993.All available data regarding the potential hydroelectric project,including the two mentioned reports as well as information gathered on our June 8,2003 site visit,was forwarded to hydroelectric generation specialist Bob Butera,P.E.at HDR,Inc.for review.An analysis of this review is included in Appendix E of this report.The impact of the Indian River salmon enhancement project and recenily installed fish ladder was analyzed.The original Polarconsult cost estimate was also reviewed and adjusted for inflation.As reported in the HDR,Inc.analysis,this revised cost estimate may still be somewhat low due to the lack of a detailed design,the assumed labor rates,the lack of adequate provision for site access,the over reliance on hand labor,and proposed changes in project design,along with other factors. The description of this potential hydroelectric project is similar to the Polarconsult option described on Page 3 of the HDR,Inc.analysis (Appendix E)with the exception of the following proposed changes: e Hydroelectric Generation Capacity -The original USCOE proposal calls for a 265kW hydroelectric turbine and the Polarconsult design calls for 125kW turbine.Based on Table 2 of Appendix E,"Percent of Time Flow Available to Meet Peak and Average Demand”,(Peak=75kW,Average=50kW)it is apparent that the Indian River may not be capable of sustained long term hydroelectric production much in excess of 75kW.The current peak demand in the community is 75kW with only small anticipated near term future growth. lf community demand does grow,loads in excess of 75kW can be met by "peak shaving"utilizing an appropriately sized diesel-electric generator operating in parallel with the hydroelectric plant.This same parallel operation will also be required during periods of limited water flow. e Site Access -The Polarconsult design does not provide easy access from the community of Tenakee Springs to the hydroelectric site.Their proposed work plan calls for the installation of a temporary man camp near the hydro site to house construction workers.For future operations and maintenance, transporting materials or tools to the hydroelectric plant would require the operator to travel approximately three miles by water,approximately five miles by logging road,and finally down to the river on a one quarter mile long "skid trail".Access to the trash rack and sand screen,located near the diversion structure,would be by required on a regular basis.This site would be accessed by a slightly shorter "skid trail"located approximately one halfmilefurtherdowntheloggingroad.A more practical solution for access to the hydroelectric plant and diversion dam sites,both for construction and forregularlongtermoperatoraccess,would be to construct a trail originating atthesmallboatharborrunningapproximatelythreequartersofamiletothe hydroelectric plant and approximately one quarter mile further up river to the diversion structure site.The proposed trail would need to be at least 6'wide and would require a solid gravel foundation with wooden bridges as required for access by small utility vehicles and light weight construction equipment. 15 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering Trail Mix,a nonprofit organization based in Juneau,specializes in the construction of similar trails in the region.They recently completed construction of a one mile long by 7 foot wide trail in the Juneau area.This trail design included an average of eighteen inches of gravel base as well as several wooden bridges.It was constructed for approximately $32/foot using local labor at rates similar to the prevailing rates in Tenakee.However,this project had road access to the trail head so gravel and mobilization costs were much lower than would be the case in Tenakee.Since the Tenakee trail would be designed for only occasional access,the gravel cover could likely be reduced to an average of twelve inches.Taking into account the reduced gravel cover requirement,the anticipated cost of barge-delivered gravel,and the increased cost of project mobilization,it is estimated that the Indian River hydroelectric access trail could be built for approximately $38/foot,provided that a feasible route to the hydroelectric site can be located. e Transmission Line -The transmission line route between the hydro site and the community of Tenakee Springs is densely forested with large trees.The Polarconsult design calls for an overhead tree-mounted system utilizing insulated conductor,steel messenger cable and breakaway supports to protect the line from the inevitability of falling trees and limbs.It is proposed to replace this system with insulated conductors and fiber optic communication cables in below grade PVC conduit to be routed along the proposed access trail.The costs of the two power transmission systems are _comparable but the long term reliability of the below grade system would be much greater.The addition of the fiber optic cable would allow for hydroelectric data acquisition and would provide information to the new power plant switchgear for automatic start up of generators for peak shaving or prime generation as determined by the load and water flow available.At the trail head near the small boat harbor the transmission line would connect to the existing overhead distribution system.There is currently only a single phase extension serving this area so an upgrade of approximately 1,300 feet of overhead single-phase distribution to 3-phase would be required in order to distribute the hydro power back to the community.This would require the installation of two additional overhead conductors supported on new cross arms mounted to approximately eight existing power poles. e Flume/Penstock Design -The Polarconsult design calls for 1440 feet of open flume to provide water conveyance from the diversion structure to a forebay structure near the hydroelectric plant.The proposed construction is sheet aluminum flume supported on locally milled yellow cedar timber sleepers and trestles.Unlike closed pipe (penstock)systems,open flumes must maintain the elevation of the diversion structure,less a slight slope for flow,all the way to the point of transition to a penstock pipeline.Due to the steepness of the observed canyon walls along the proposed route,it appears that the suggested average flume support trestle height of ten feet is not reasonable.The availability of locally milled yellow cedar for trestle construction is also unknown at this time.It is therefore proposed to replace 16 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering the open flume proposal with 30 inch diameter HDPE pipe supported on treated timber sleepers or elevated supports as required and sized to match the power rating of the final hydroelectric turbine selection.Using a closed pipeline for water conveyance would allow for much more flexibility in the routing of the pipeline and would decrease or eliminate the need for elevated trestle supports.It is also suggested to locate the pipeline and hydroelectric plant on the west (town)side of the canyon as proposed in the original USCOE design to eliminate the need for a suspension bridge over the Indian River for the transmission line or facility access. e Alternate Cost Estimate -Due to the many proposed changes to the original Polarconsult project,along with the lack of a detailed design and the different assumptions regarding construction methods,an alternative method for determining an order of magnitude cost estimate for the potential Tenakee hydroelectric project was sought.A comparative cost based on a recent engineers estimate for a similar proposed project in Atka is included on Page 4 of the HDR,Inc.report (Appendix E)and was used as a basis for the Hydro Project cost estimate provided in Appendix E. 5.4 Proposed Operating Scenario The City of Tenakee Springs is currently providing local retail fuel sales as well as operating the local electric utility and will continue to operate the new tank farm,retail fuel sales facility and new power plant as well as the new hydroelectric facility if constructed. Management responsibilities of the new City tank farm include:maintenance and operation of all tanks,pumps,and piping systems;annual pressure testing of pipelines;maintenance and replacement of spill response equipment and supplies;and snow removal.These operating costs should be determined on a per gallon of throughput basis (as part of the required Denali Commission Facility Business Plan)and the price of fuel adjusted to cover the facility operating costs. 6.0 PERMITTING AND SPILL RESPONSE The proposed new tank farm,power plant and hydroelectric facility will be subject to Regulations of both State and Federal agencies including the Alaska Coastal Management Program,the Division of Fire Prevention,and the U.S. Environmental Protection Agency.Depending upon local conditions,additional permitting agencies including the U.S.Fish and Wildlife Service,the U.S.Army Corps of Engineers,the State Historic Preservation Office,and other divisions within the Alaska Department of Natural Resources may become involved. 6.1 Environmental Assessment An Environmental Assessment (EA)will be completed prior to construction of the proposed project.An EA is required for all projects that are federally funded or require a federal permit (such as a Corps of Engineers Wetlands Permit).The EA confirms there is no significant impact to the environment caused by the project.As part of the EA,a Coastal Zone Management Project Questionnaire 17 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering will be completed and submitted to the Alaska Coastal Management Program. The Coastal Zone Management Project Questionnaire will help identify state or federal permits that may be required.A Corps of Engineers wetlands permit should not be required for construction as all fill material will be placed in uplands and not in navigable waters.However,the need for a permit will be investigated further with the Corps of Engineers early in the permitting phase. 6.2 Hydroelectric Project Permitting In addition to the EA requirements listed above,the hydroelectric portion of this project will require the following separate permits/review process: e Alaska Department of Natural Resources o Water Rights Permit o Fish Habitat Permit o Coastal Zone Management Consistency Review e Federal Energy Regulatory Commission (FERC)license (now that the USDA Forest Service has established a fish ladder on Indian River) e Site Control permits and/or easements for access to the site and for electric transmission line right of way. 6.3 Fire Code A Plan Review permit from the State Fire Marshal is required.Final stamped design drawings will be submitted for review and approval prior to construction. Plans will be reviewed for conformance with the International Fire Code and portions of related codes including the International Building Code and the National Electrical Code.In prior years the review process has only taken 3 to 4 weeks;however,recent projects have taken over 6 months.Generally site work and mobilization is allowed to proceed prior to approval but the permit must be in place prior to placement of tanks or similar installation.Plans should be submitted by December 2004 to ensure approval in time for spring 2005 construction. 6.4 Spill Response Because the new City bulk tank farm will have oil storage tanks in excess of 1,320 gallons and will receive delivery by marine vessel,it will be subject to U.S. Environmental Protection Agency and U.S.Coast Guard regulations.An Operations Manual and Letter of Intent will be prepared and submitted to the Coast Guard.An Oil Spill Response Plan will be prepared and submitted to both the Coast Guard and the EPA.The tank farm will require preparation of a Spill Prevention Control and Countermeasures (SPCC)plan.This plan will address all tanks of 55 gallons or greater.The required Coast Guard and EPA plans will be prepared upon completion of facility construction as a coordinated package. Spill response gear including sorbent material and protective safety gear will be purchased and left on-site upon project completion along with a refurbished existing tank to serve as oil-spill contingency storage. 18 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 7.0 CONSTRUCTION PLAN The AEA/REG has a history of administering similar projects on a "modified" force-account basis.Force-account construction involves the owner or grantee acting as the employer and utilizing primarily local labor.This method tends to achieve a higher percentage of local hire and is strongly supported by many communities and funding agencies.The highly technical nature of tank farm projects requires a limited number of workers with specific experience and expertise to be brought in for the project when not available locally.All work must be supervised and managed by a superintendent with extensive experience in the construction of rural fuel facilities.All specialty work,such as pipe welding and electrical installation must be performed by skilled craftsmen with appropriate certifications.An experienced construction manager will be required to recruit the necessary skilled labor,coordinate the construction team,and oversee procurement and project logistics.The design engineer will provide quality control through communication with the construction manager and periodic on-site inspections. The project mobilization and site preparation portions of the BFU and RPSU projects are considerably more complex than would normally be encountered on similar sized projects.Some of the factors contributing to this are: e Difficulty of barge landing/beach access in project area e Lack of area for staging materials and equipment e Maintaining public access through town during construction e Extreme slope of tank farm/power plant site e Limited availability of local gravel e Limitations of road access through town from the gravel staging/mining area near the smail boat harbor e Lack of a local landfill The beach in the area of the proposed barge landing site is reported to be strewn with boulders as well as areas of blue clay and may not be suitable for going dry or for moving heavy equipment across the beach area.A suggested solution is to use a deck barge with long ramp,such as the 110°long barge operated by Hanson Maritime out of Sitka.The long ramp will allow for beach access near the street level in order to avoid the problem area.In order for the barge to avoid going dry,it may require more than one tide to offload.The barge delivery may also need to be coordinated with a large tide series to ensure beach access and to maximize the offloading window. Due to limited beach access and working space in the proposed project area,it may be necessary to clear the area between the existing power plant and the residence directly to the east in order to make a path for offloading barge- delivered materials and equipment.It may also be necessary to temporarily remove some of the improvements that are currently located within the Tenakee 19 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering Ave.right-of-way to make room for staging tanks,equipment and supplies in this area.These improvements may include stairways and landscaping of private residences.See Sheet M2 for the proposed beach access and project staging area.Since Tenakee Avenue is the only means of public access through town,it will be necessary to maintain access through the work area at all times. The existing stairway and above ground fuel pipelines will have to be demolished to make room for moving equipment and materials up the hill to the proposed tank farm and power plant site.In order to accomplish this without disruption of fuel sales,temporary HDPE above ground pipelines will need to be routed from the existing tank farm in an area clear of the construction activity.The temporary pipelines can run below grade as required for connection to the existing buried pipelines and for protection in the construction area at the road crossing.There should be minimal impacts on existing fuel services or community power distribution during construction. The grade along the "E"Street right of way between Tenakee Avenue and the proposed tank farm/power plant site is very steep and irregular,with one section having a slope of more than 30%(based on preliminary survey data).After removing the existing stairway,a corridor approximately 300 feet long by 20 feet wide will need to be cleared of all trees,vegetation and organics and then leveled as much as possible to create a path for moving equipment and materials up slope.Once equipment access is gained,the installation areas can be cleared and the benches formed by cutting existing material.A leveling course of gravel will likely be required for final grading of the benches.A gravel skiff,comprised of a skid mounted platform with side rails,is one possible solution for moving the gravel up the steep slope to the installation sites.The gravel skiff could be filled at the base of the slope,winched up the hill by equipment located above the bench,dumped by a second piece of equipment located at the bench level and then lowered back down the hill.Once site preparation is complete,the fuel tanks and power plant module will need to be winched up the hill and positioned on the benches.The module will be the heaviest item to be placed and will weigh approximately 40,000 pounds.The initial barge mobilization will need to include equipment capable of developing this difficult site as well as moving and placing the heavy module and tanks.To accomplish this,a one month rental for a Caterpillar D8 class dozer with heavy duty winch,a Caterpillar 345 class excavator,and a Caterpillar 966 class loader have been included in the BFU and RPSU cost estimates,split between the two projects. 7.1.Local Job Skills An inquiry was made to the City for information regarding the availability of specialty skilled labor in Tenakee Springs.The table on the following page summarizes the results: Skilled Trades Number Available Certified Welder n/a 20 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering Welder Helper n/a Journeyman Electrician n/a Electrician Helper 1 Carpenter 2 Heavy Equipment Operator n/a Mechanic/Helper n/a In addition to the specialty trades listed,there are a number of local residents with general labor experience in various types of construction.It appears that at a minimum a project superintendent,a pipe welder/mechanical foreman,a journeyman carpenter,and a journeyman electrician will need to be brought into Tenakee Springs for this project. 7.2.Local Equipment There is no heavy equipment located in Tenakee. 7.3 Material Sources Every effort will be made to minimize the quantity of gravel required due to the lack of a local borrow source and the difficulty of access to the site.However it is estimated that between 250 and 500 cubic yards of gravel will be required for BFU/RPSU gravel pad construction.Approximately 1,200 cubic yards of gravel will be required for the hydroelectric project access trail.The only known local source of gravel is the beach area in the vicinity of the small boat harbor. According to local sources,DNR permits for mining gravel in this area have been issued for small quantities in the past.However,it is unlikely that a permit could be obtained for the total quantities required by either of these projects. Therefore it is assumed that a portion of the gravel for the BFU/RPSU projects and all of the gravel for the hydroelectric project will be barge delivered from Sitka or Juneau.Approximately 250 yards of gravel will be imported during the initial BFU/RPSU barge mobilization along with other materials and equipment. A permit application will be submitted to DNR for mining an additional 250 yards from the beach as a contingency.Approximately 1,200 yards will be barge delivered for the hydroelectric project.Based on a preliminary analysis of a 600yard(900 ton)delivery,barge delivered gravel is likely to cost around $38/yard, including equipment time for loading,unloading and stockpiling.All gravel will need to be stockpiled in the area near the small boat harbor because there is very little in the way of a staging area near the tank farm and power plant site. For the BFU/RPSU project the gravel will need to be hauled through town to the tank farm/power plant site by small truck or gravel skiff due to the narrowness and poor foundation of the road. 21 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 8.0 SCHEDULE The proposed project schedule is separated into two sections:Section 8.1," BFU &RPSU Project Schedule",and Section 8.2,"Hydroelectric Project Schedule". 8.1 BFU &RPSU Project Schedule The following schedule has been developed on the basis of performing the majority of the work for the BFU and RPSU projects during spring/summer 2005. This schedule is contingent on timely approval of the plan by the Tenakee City Council and Denali Commission as well as on funding availability. BFU &RPSU PROJECT SCHEDULE oO N;/D/J7]F ]MiIA]Mji J]J c O;E;A;}E]A!]P]AYTUYTYU T ViC;jN]I BY]RIRIY I NIL oc>umn400PH.II TASKS (2004) 95%DESIGN Yeneenenne-X REVIEW x-X FINAL DESIGN Xo-=-X PH.Ill TASKS (2004/5) PERMITTING/SITE CONTROL |x x ORDER MODULAR BLDG XewenreneX ORDER GENERATION EQUIP Xewmeneennmnnnnene!x ORDER TANKS Xanneennennannwnnex ASSEMBLE MODULAR coxPOWERPLANT TEST/COMMISION MODULAR vxPOWERPLANT ORDER REST OF MAT'LS {x INITIAL MOBILIZATION x SITE PREPARATION X-X MODULE/TANK PLACEMENT x-x EQUIP.DEMOBILIZATION x ACCESS STAIRS/PIPELINES x-x PIPING,DISPENSER,ETC.x--X COMMISSION PWR PLANT x-X DISTRIBUTION UPGRADES XeoeX FENCE,ELECTRICAL,ETC.xx PUNCH LIST COMPLETION x-x SPILL PLANS &CLOSE OUT Xnenneernnenennenex 22 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Desiqn Report Alaska Energy and Engineering 8.2.Hydroelectric Project Schedule Permitting and design for the hydroelectric project would not likely be completed in time for summer 2005 construction due to the long expected time frame for FERC permit approval.Therefore,the following schedule has been developed on the basis of performing the majority of the work for the hydroelectric project during spring/summer 2006.This schedule is contingent on timely approval of the plan by the Tenakee City Council and Denali Commission as well as on funding availability. HYDROELECTRIC PROJECT SCHEDULE 2004;N D|J F;];M;]A|M J J TO;O|;E/A{TE]AYIP A Uy}U 2006;Vv;C |}N/]BIi{RY{RI]Y Ni Ll Qc>umn4a0PH.Il TASKS (2004/6) 95%DESIGN x-x STATE/FERC PERMITTING &xSITECONTROL REVIEW x FINAL DESIGN x PH.Ill TASKS (2006/7) ORDER HYDRO TURBINE Neernnnennne!x ORDER REST OF MAT'LS Xeweeceennsx MOBILIZATION x-X TRAIL &TRANSMISSION YeweeeeneeexLINE HYDRO PLANT Xenx DIVERSION STRUCTURE x-X PENSTOCK xX PUNCH LIST COMPLETION xx CLOSE OUT XX 23 Tenakee Springs Energy Infrastructure Projects August 23,2004 Concept Design Report Alaska Energy and Engineering 9.0 COST ESTIMATE The construction cost estimates have been developed based on a "modified" force-account approach utilizing a combination of local labor,certified craftsmen, and specialty sub-contractors under the direction of an experienced construction manager.Labor rates are based on Title 36 equivalent wages for certified specialty labor and prevailing local force-account wage rates for general labor and equipment operation.Separate construction cost estimates were developed for the bulk fuel and the power generation portions of this project since these projects may be funded from different sources.Detailed cost estimates are included in Appendix B.The total project cost including all design,supervision, inspection,permitting,and a 15%contingency is estimated to be: °$870,940 Bulk Fuel Upgrade (65,000 gallons at $13.40/gallon) °$942,471 Power System Upgrade (270kW at $3,491/kW) e $2,229,975 Indian River Hydroelectric Project The bulk fuel upgrade unit cost of $13.40/gallon is within the Denali Commission benchmark cost range of $14.00 to $12.00 per gallon for 50,001 gallon to 100,000 gallon capacity tank farms. The electrical upgrade unit cost of $3,491/kW is within the Denali Commission benchmark cost range of $3,500 to $2,900 per installed kW for 201W to 400kW capacity power plants. It is assumed that the operation and maintenance costs of the hydroelectric plant will be comparable to that of the diesel generators.Therefore,the hydroelectric project cost of $2,229,975 needs to be compared to the primary benefit which is the avoided fuel cost.It is also assumed that the hydroelectric generator would offset 75%of the annual fuel consumption of the power plant or approximately 30,000 gallons.Based on the most recent fuel price paid by the Tenakee electric utility of $2.61/gallon the annual savings is estimated to be approximately $78,300. 24 APPENDIX A CONCEPT DESIGN DRAWINGS PORTION OF CHICHAGOF AVE. R.O.W.TO BE ABANDONED MS.R.Nod EXISTING FUEL TANKS TO BE TAKEN OUT OF SERVICE \ EXISTING STAIRS TO BE DEMOLISHED \[&FY Yy CHICHAGOF AVE.|tor 7 \f]t\tor 2 |toré |tors |Lor4 |@ \@ |EXISTING TLL O00 |FUEL |.__._\INO . i PIPELINES tor 4 |Lots \NNTOBEDEMOLISHEDyl M.S.R.No3}LOT 1]LoT2 |LoT3 |tors ||M ||EXISTING TRUCK $$$aLOADINGHOSEi= STAND,STEP-UP 9 <->+TENAKEEAVE.-TRANSFORMERBANK,AND OLD "Tahalwa a LOT]Ft Lor és sy UT LOT 5|| POWER PLANT ica iBUILDINGTOBE|=------ DEMOLISHED.|EXISTING 300 GAL.--- POWER PLANT __EXISTINGTANKANDBURIED"]FUELpaSeanes NF eanPIPELINETOBETOBE TAKEN OUT OF |DEMOLISHED ff fe SERVICE PRIVATE PORTION OF AK TIDELANDS PRIVATE PORTION SURVEY No524 OF AK TIDELANDS SURVEY NoS24 CITY PORTION/ee ||TENAKEE EXISTING J).OSUREY hoont |>INLET DISPENSERSANDMARINE 3 HEADER TO BE pock [|__|DEMOLISHED l llboo,,|Le._-_.._..__.._|1”=80 PRMECT:TENAKEE SPRINGS BULK FUEL STORAGE [ower JID |sows:1"=80"State of,MOOaoANDPOWERSYSTEMUPGRADEcescenorBCG|one:6/25/04 tae "erage ot Comalae gnome Development nw ser |MD TS St Sn,JE ALASISAEXISTINGSITE/DEMOLITION PLAN TENA-CDR-M1 M 1 5 ew *Anchorage,Alaska 99503 PROPOSED CITY TANK FARM/POWER PLANT PROPERTY AND EXTENDED "E”STREET R.O.W. NEW ACCESS STAIRS [NeW CITY TANKNyiFARM&POWER NEW STAIR-MOUNTED 3”i \PLANT -SEEGASOLINE&#1/#2 -_=,RCRDDIESELBARGED FILL/DISTRIBUTION |SITE/GRADING PIPELINES &ELECTRICAL |Wik A pPLAN AND_SHEETCONDUITWWM4FoRPIPING | ly =tT F 1 '1 t ''' | f OOOO 1 a -|t 7 t -'7 Ad on |Citi tL PROJECT °{7 fi \TENAKEE AVE. STAGING AND Cf EEX BEACH ACCESS ----4-|ineAREA:|\Hoot NEW TRUCK pxstine POWERLOADINGHOSEPOLETYPSTANDIN6x6)||SECURITY | NEW 3"|ENCLOSURE | GASOLINE & IH |'#4/#2 DIESEL \i]|BARGE |FILL/DISTRIBUTION :/]|: 'PIPELINES AND |ELECTRICAL PeCONDUIT rt[UNDER book | NEW GASOLINE |- !DISPENSER,| #1/#2 DIESEL _]I BULK TRANSFER &Ly ||MARINE HEADER i |in|1”=80' PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE ower JID |swe 1”=80'State of AloANDPOWERSYSTEMUPGRADEvcomeaovBCG|ore:8/23/08 [*we.DUParepeNt oF ComminyandEsenomic DevelopmentrEweserOr]Sy rel EnoaySte FERAL ASIANEWSITE/PROPERTY PLAN TENA-CDR-M2 M2 5 n*pechorayer hicake "BB803 PROPOSED CITY TANK 3°ele 100"_FARM/POWER PLANTrndaPROPERTYBOUNDARY as Pa ae APPROXIMATE EXISTING [/I votes.Seee eer eey,CATON 1.VERTICAL DATUM BASEDtoteRSSSELEVAONTOPOFFERRYSaoSnieaearereeDOCK=99.22' Penn ReYR er NS KP 2.GROUND CONTOUR NG nen Sn NO GN ht eee ELEVATIONS SHOWNIwyeSPsereAREAPPROXIMATE.DUEarEaeFSTNOSETOINCOMPLETEDATA.a a ae ae S "XN >an7aeTANK4sJSSXSE 3.EXCAVATE EACH BENCH |f----.TON ADE4-TO REMOVE ORGANICTAASOLINETANKsiTNSNfeMATERIAL.CUT/FILL+;ABENCH EL 4\|TANK. s2 SS QT RAL EXISTING MATERIAL AS4/160">:-REQUIRED.FINAL KO See MINIMUM 1”DEEP |\Ore--2.LAYER TO BE 2”Ney MINUS BEACH GRAVEL. q TRS q__/oiesectanKpy [FALITKALT|/BENCH-EL,|\ _\J 4--220TT150Peieeeee [aay eeKoSonleste77cgaeOeeePP--- poWER PLANT.> F I=--"pal _.+._/POWER PLANT7--.-----Moputk >"KE "J--[----BENGHEL.Lela ---SA --Peer71452-Swe TE TE|eee ee ae fiieiilie ferries | at eeejo-llt--linp-corr DLliiiri--p eA ri3s Joslyn Pe !V sll tel qc Se LI ---a N ; Pre oe ee orreertannaeae_EXISTING TANKS TO l7- -L \as eee ©BE ABANDONED -)-|7 --#s _ [©Fan) N\- ._.Qu re Me 'TS SLL -130'y=PSSSTOTee oo ----7 to a Seer rrr eae Died t -|| =-OfF |oo --------7 --- -.j 0ST TTT T7----foz+ -IP ii i-----r--iirreet-ree PROIECT:TENAKEE SPRINGS BULK FUEL STORAGE [mmer JID __|sews 1°=25'Stty ofAe .AND POWER SYSTEM UPGRADE resoorBCG |owe:0/23/04 a,"orogentcom hy”ond:Ectnomic Development LASKA™E TANK FARM &POWER PLANT AREA FILE NAME SHEET oF 13 Weet NorthernLightsbind.Gf Sms Lach MoPHonerySITE/GRADING PLAN TENA-CDR-M3|MM3 5 xe prchorayer Maske "65803 ae 0/TANK #4 9'9x32'L NOMINAL 15,000 GALLONS C)*sO0 GASOLINE BULK STORAGE TANK #3 8°6x17'L Px3 Ey yoo C)e \ 6,000 GALLONS GASOLINE DISPENSING NOMINAL 2”sctuarep » | | |”3”GASOLINEFILL/BALL VALVEDISTRIBUTION|FORPIPELINE|ANTI-SIPHON [AND BARGE FILL |LOCK-OUT, |TYP(3) |x an HIGH CHAIN LINK FENCE TANK #2 10°6x38°L NOMINAL 22,000 GALLONS #1 DIESEL BULK STORAGE C)**OCr 4Ate: my eg P-1 TANK #1 10'8x38'L NOMINAL 22,000 GALLONS #2 DIESEL BULK STORAGE Ors ¢OOr } 1”ACTUATED BALL VALVE CONTROLLED BY AUTOMATIC FILL DAY TANK CONTROL PANEL DI = |It kN |Soo ft AND 1”POWER PLANT DAY#2 DIESEL -TANK SUPPLY ANDFILL/PUMP-DOWNARIBUTIONPIPELINES PIPELINES -5°WIDE ACCESS STAIRS/WALKWAYP x ig [NEW POWER PLANT MODULE PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE AND POWER SYSTEM UPGRADE TMLE: TANK FARM PIPING PLAN DRAWN BY:JTD SCALE:1°=10"State of AlaKsDeportyentofCommunitybadtS nomic Developmentpesicnenay:BCG mre:8/23/04 *,AIDEA/AEA |FILE NAME SHEET oF rN 813 West Northern Lights Dd.S ALASKATENA-coR-M4|M4 5 wo facharogs,Nesta Sas0$ TANK SCHEDULE TANK|NEW |NEW/|TYPE |FUNCTION |#2 DIESEL |#1 DIESEL |GASOLINE#|OWNER|EXISTING |(2)CAPACITY(1)|CAPACITY(1)|CAPACITY(1) #1 [CIY_[NEW DW {BULK 15,000#2_|CITY |NEW FR {BULK 6,000#0 [CITY |NEW DW |BULK 22,000 #4 |CITY |NEW DW |BULK 22,000 PROJECT STORAGE CAPACITY BY PRODUCT 22,000}22,000 21,000 PROJECT TOTAL GROSS STORAGE CAPACITY 65,000 NOTES:1)ALL CAPACITIES ARE GROSS SHELL CAPACITY IN GALLONS 2)DW =DOUBLE WALL,FR =TWO-HR FIRE RATED PUMP SCHEDULE LABEL |FUNCTION STYLE MOTOR P-1 |GASOLINE BULK TRANSFER |SUBMERSIBLE |.75HP,230V P-2 |GASOLINE DISPENSING SUBMERSIBLE |.75HP,230V P-3 |#1 DIESEL BULK TRANSFER |SUBMERSIBLE |.75HP,230V P-4 |#2 DIESEL BULK TRANSFER |SUBMERSIBLE |1.5HP,230V PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE ower JD |swe 1'=10"Deport mentofCometh MOBS amie DevetANDPOWERSYSTEMUPGRADEDesenenorBCG|ome:8/23/04 [*AIDEA/AEA--ri Wi ser OF |YM Nore Soe,JE ALASKATANKANDPUMPSCHEDULESTeNA-cor-M5|M5 5 "e hachoroge,coke 85808 |||B-J ! 1"=40'!!NOTES:!1)APPROXIMATELY 1,200°OF EXISTING |7 peSINGLEPHASEOVERHEAD1 DISTRIBUTION TO BE UPGRADED TO 3-PHASE FOR CONNECTION TO ;NEW ; EXISTING BURIED 3-PHASE WIRED POWEREXTENSIONONWESTENDOFTOWN.|PLANT |.--------MODULE,------+ SEE SHEET £2; NEW STAR - 1 MOUNTED \|t 1CONDUITFORICOMMUNITYOOOOI FEEDER [0 ||| '''NEW PAD '' ' MOUNT __150kVA | !STEP UP |TRANSFORMER 0 ee ee Ls |e gE UPGRADE EXISTING EXISTING + OVERHEAD DISTRIBUTION @ POWER C4 \le e BETWEEN POLES W13 AND POLE,TYP LJ - -W18 -SEE NOTE 1.'NEW BURIED CONDUIT FOR CONNECTION TO_EXISTING OVERHEAD DISTRIBUTION_ PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE [oR sy:JID SCME:1"=40'State of Alo AND POWER SYSTEM UPGRADE nescenorBCC |owe:6/25/04 |w,Depa nk of oni ort Enomi DevelopmentriewaesetOF|"gM fact Eta Go FE ALASKAPOWERDISTRIBUTIONUPGRADESTENA-CDR-E1 |.2 me anchorage,hocks e508 N 7 "\/\/\/ x x "YN 7Nn/\yY \ Oo os S32EpV][re 3.TP B=(eee) 4 GEN1 98kW (B8kW PRIME|[ee 12 DR c-||tH eo | GEN#2_SBkW BBKW PRIME><||Pee=(GENERATION .5 ROOM °s =|RCs)|vw |GENJ3 74KWw |PANEL a (64kW PRIME) PANEL-=- ss-1tank|STATION.SERVICE - TRANSFORMER BLENDER |CF FIRE SUPPRESSION 1AGENTCYLINDER CONTROL ROOM cen |cen |ceN |pcre.#3 |#2 |#1 1 o -14'-8"_ -=-§ PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE [mwer JTD_|swe 3/16°=1'State of AND POWER SYSTEM UPGRADE mewn or BCG |ome 0/25/04 fe,rt ot como Eni DevelopmentTHLE:FILE NAME SHEET OF yo N Rural cee.J ALASK:POWER PLANT MODULE PLAN TENA-CDR-E2 |F 2 2 x oe PN echoraperMaskeBes03”©SMP ENERGY AUTHORITY APPENDIX B CONSTRUCTION COST ESTIMATE ALASKA ENERGY AND TENAKEE SPRINGS BULK FUEL UPGRADE AUGUST 23,2004 ENGINEERING COST ESTIMATE SUMMARY CONCEPT DESIGN REPORT SITE $41,075 TANKS $162,140 PIPING SYSTEM $142,570 PUMPS,DISPENSER,POWER,CONTROLS,ETC.$89,975 MISCELLANEOUS $75,000 OVERHEAD $81,500 FREIGHT $45,080 CONSTRUCTION SUB-TOTAL $637,340 DESIGN AND CONSTRUCTION ADMIN.$60,000 CONSTRUCTION MANAGEMENT $60,000 PROJECT SUB-TOTAL $757,340 CONTINGENCY $113,601 15 % TOTAL PROJECT COST $870,940 TOTAL STORAGE CAPACITY 65,000 GAL.GROSS CAPACITY COST PER GALLON OF CAPACITY $13.40 B-1 ALASKA ENERGY AND TENAKEE SPRINGS BULK FUEL UPGRADE AUGUST 23,2004 ENGINEERING CONSTRUCTION COST ESTIMATE CONCEPT DESIGN REPORT ITEM QUAN |UNIT}UNIT MATL |UNIT)LAB |LAB}LABOR |CONTR |FREIGHT]TOTAL |UNIT]TOTAL COST COST |HRS]|HRS |JRATR COST COST COST CosT WT WT(#) SITE Clear,Grade Site,Demo Stairs 1}lump $0 $0 |240]240]$60]$14,400 $14,400 0 Gravel 250jcu.yd.|$20.00 $5,000 }0.500 125)$60 $7,500 $12,500 0 6'Chain-Link Fence 350]lin.ft.|$10.50 $3,675 |0.50 175)$60 |$10,500 $14,175 |15.00 5250 TANKS Drain Existing Tanks 4|ea.$100 $100 10 40|$80 $3,200 $3,300 0 New 20,000 Double Wail Tank 2!ea }$40,000 }$80,000 0 0}$60 $0 $80,000 0 New 15,000 Double Wall Tank 1]ea |$30,000 |$30,000 0 O|$60 $0 $30,000 0 New 6,000 Fireguard Tank 4}ea {$25,000 |$25,000 0 0|$60 $0 $25,000 0 Emergency Vents 8|ea $300 $2,400 2 16}$60 $960 $3,360 75 600 Pressure/Vacuum/Whistle Vents 4|ea $250 $1,000 2 8|$60 $480 $1,480 20 80 Clock Type Gauges 4)ea $280 |$1,120 2 8}$60 $480 $1,600 20 80 Concrete Footings 15|cu.yd.$100 $1,500 7|105]$60 $6,300 $7,800 600 9000 Place Tanks in Dike 4}ea $0 $0 40]160)$60 $9,600 $9,600 0 PIPING SYSTEM Demolish Old Piping 1|lump $0 $0}100 100!$60 $6,000 $6,000 0 Temporary HDPE Pipelines 300}lin.ft.|$5.00 $1,500 |0.05 30]$60 $1,800 $3,300 10 3000 3"Sch 80 Welded Buried 300}lin.ft.|$10.00 $3,000 |0.25 75]$60 $4,500 $7,500 10 3000 3"Sch 80 Welded Below Dock 900]lin.ft.|$10.00 $9,000 |0.50 450|$60 |$27,000 $36,000 10 9000 3"Sch 40 Welded Above Grade 900]lin.ft.|$7.50 $6,750 |0.121 108]$60 $6,480 $13,230 8 7200 2"Sch 80 Welded Above Grade 300}lin.ft.$7.50 $2,250 |0.10 30}$60 $1,800 $4,050 5 1500 1"Sch 160 Welded Above Gradq 200}lin.ft.$5.00 $1,000 |0.10 20}$60 $1,200 $2,200 3 600 Paint Piping 200!sq.ft.$0.60 $120 |0.10 20|$60 $1,200 $1,320 0.20 40 3"Pipe Straps 200]ea $3.00 $600 |0.10 20|$60 $1,200 $1,800}1.60 320 Concrete Support Blocks 10!ea.$10.00 $100 |1.00 10}$60 $600 $700 13 130 Misc Strut &Pipe Clamps 1]lump |$6,000 $6,000 |100 100;$60 $6,000 $12,000 400 400 Flexible Connectors 10]ea $125 $1,250 1 10}$60 $600 $1,850 10 100 Manifold &Dispensing Fittings 1}lump |$2,500 $2,500 {150]150}$60 $9,000 $11,500 |3000 3000 3"Flanged Gate Valves 3|ea $250 $750 2 6|$60 $360 $1,110 50 150 3"Flanged Check Valves 6}ea $200 $1,200 2 12|$60 $720 $1,920 50 300 2"Flanged Check Valves 1|ea $175 $175 1 1}$60 $60 $235 30 30 1"Flanged Piston Check Valves 3]ea $175 $525 1 3}$60 $180 $705 30 90 3"Flanged Ball Valves 3]ea $275 $825 2 6}$60 $360 $1,185 50 150 2"Flanged Ball Valves 4}ea $175 $700 1 4}$60 $240 $940 30 120 Misc Threaded Ball Valves 1|lump $200 $200 40 10}$60 $600 $800 50 50 2"Actuator Valves 7|ea $2,000 |$14,000 2 14]$60 $840 $14,840 35 245 ALASKA ENERGY AND TENAKEE SPRINGS BULK FUEL UPGRADE AUGUST 23,2004 ENGINEERING CONSTRUCTION COST ESTIMATE CONCEPT DESIGN REPORT ITEM QUAN |UNIT]UNIT MATL |UNIT}LAB |}LAB}LABOR |CONTR |FREIGHT]TOTAL |UNIT|TOTAL COST COST |HRS}HRS /JRATG COST COST COST COST WT WT(#) 4"Actuator Valves 1}ea $1,400 $1,400 2 2|$60 $120 $1,520 35 35 3"Strainers 8]ea $300 $2,400 1 8|$60 $480 $2,880 50 400 2"Strainers 8|ea $300 $2,400 1 8|$60 $480 $2,880 50 400 1"Flanged PRV 3]ea $475 $1,425 1 3|$60 $180 $1,605 10 30 2"Anti-Syphon Valves 1|ea $150 $150 2 2|$60 $120 $270 10 10 3"Fill Limiters 3|ea $1,250 $3,750 4 12|$60 $720 $4,470 20 60 2"Pipeline Filter 4|ea $1,200 $4,800 4 16]$60 $960 $5,760 20 80 PUMPS,DISPENSER,POWER,CONTROLS,ETC. 1-1/2 HP Submersible Pumps 1]ea $2,000 $2,000 6 6|$60 $360 $2,360 100 100 3/4 HP Submersible Pumps 3|ea $1,200 $3,600 6 18}$60 $1,080 $4,680 100 300 Grounding Reel 1}ea $200 $200 2 2|$60 $120 $320 20 20 Hose Reel 3]ea $700 $2,100 20 60}$60 $3,600 $5,700 100 300 4-1/4"Bulk Transfer Hose 75|lin.ft.$11 $825 |0.10 8|$60 $450 $1,275 1.5 113 4"Bulk Transfer Hose 175]lin.ft.$10 $1,750 |0.10 18]$60 $1,050 $2,800 1.0 175 Bulk Transfer Nozzle &Acces.4|ea $300 $1,200 1 4]$60 $240 $1,440 10 40 Custody Transfer Meter 4|ea |$2,800]$11,200 10 40]$60 $2,400 $13,600 400 400 Pump Control Panel 4]ea |$10,000 |$10,000 |100]100/$80 $8,000 $18,000 200 200 3-Point High/Low Level Switches 1}ea $1,400 $1,400 5 5}$80 $400 $1,800 50 50 Meter Base &Panel Board 1|lump |$1,000 $1,000 60 60}$80 $4,800 $5,800 200 200 Area Lighting 1}lump |$1,000 $1,000 40 40|$80 $3,200 $4,200 300 300 Conduit,Conductors,&Devices 1}lump {$12,000 |$12,000 |200 200|$80 |$16,000 $28,000 |2000 2000 MISCELLANEOUS Concrete Slabs &Steps 15}cu.yd.$100 $1,500 7 105}$60 $6,300 $7,800 600 9000 Misc.Steel (Shelters,Rack..)1}jump |$10,000 |$10,000 |200 200]$60}$12,000 $22,000 |5000 5000 Install Access Stairs 135]ft.$90 |$12,150 1 135]$60 $8,100 $20,250 50 6,750 Form Lumber,Lags,Nails,Etc 4}lump |$1,000 $1,000 40 40}$60 $2,400 $3,400 |1000 1000 Portable Fuel Transfer Pump 1|ea $750 $750 0 0}$60 $0 $750 100 100 Signs &Valve Tags 1}lump |$2,000 $2,000 30 30}$60 $1,800 $3,800 100 100 Spill Response Supplies 1|lump |$2,000]$2,000 0 0}$60 $0 $2,000 600 600 SmartAsh with spare parts 41}lump |$3,000 $3,000 0 0|$60 $0 $3,000 200 200 Misc Hardware 1}lump |$2,000 $2,000 0 Ol $60 $0 $2,000 500 500 Misc Tools &Safety Gear 1]lump |$5,000 $5,000 0 0}$60 $0 $5,000 500 500 Welding Rod,Gases,Etc.1}lump |$5,000 $5,000 0 0}$60 $0 $5,000 |2000 2000 OVERHEAD Audit Grants 4|lump $6,000 $6,000 0 ROW Legal Work 1{lump $10,000 $10,000 0 B-3 ALASKA ENERGY AND TENAKEE SPRINGS BULK FUEL UPGRADE AUGUST 23,2004 ENGINEERING CONSTRUCTION COST ESTIMATE CONCEPT DESIGN REPORT ITEM QUAN |UNIT}UNIT MATL |UNIT}LAB |}LAB]LABOR |CONTR |FREIGHT}TOTAL [|UNIT|TOTAL COST COST |HRS|HRS |RATG COST COST COST COST WT WT(#) Construction Insurance 1}lump (calc @ $6.80/$1000)$3,500 $3,500 0 First Year Operation Insurance 1}lump (calc @ $14.50/$1000)$7,500 $7,500 0 Rent Heavy Equip 1]lump $20,000 $20,000 0 Skid Steer (Bobcat)Rent 2|mo.$4,000 $4,000 0 Misc Tool Rent 1{|lump $2,500 $2,500 0 Project Diesel Fuel/Gasoline 1|lump $2,500 $2,500 0 Commission System &Training 15}hr 1 15}$80 $1,200 $1,200 0 Superintendent Overhd Off-Site 30}hr 1 30|$80 $2,400 $2,400 0 Superintendent Overhd On-Site 30,hr 1 30|$80 $2,400 $2,400 i) Crew Travel Time 80]hr 1 80}$80 $6,400 $6,400 0 Crew Airfares 4]trips $3,200 $3,200 0 Crew Per Diem 200]mn.dy $8,400 $8,400 0 Housing Rent 4]mo.$1,500 $1,500 0 FREIGHT 15,398 Barge Freight Seattle-Sitka 75398 |_Ib.$0.20 $15,080 Barge Tanks Seattle-Sitka (4)1200 |sq.ft.|$10.00 $12,000 Barge Freight Mob/De-Mob 2 |days |$4,000 $8,000 Misc Small Freight &Gold Streak 1 |lump |$10,000 $10,000 CONSTRUCTION SUB-TOTAL $311,240 3,332 $211,920 |$69,100]$45,080 |$637,340 Engineering (Design &CCA)1}lump $60,000 Construction Management 1|lump $60,000 PROJECT SUB-TOTAL $311,240 $211,920 |$189,100 |$45,080 |$757,340Contingency15[%|$113,601 [TOTAL PROJECT COST $870,940| ALASKA ENERGY AND TENAKEE SPRINGS POWER SYSTEM UPGRADE AUGUST 23,2004 ENGINEERING COST ESTIMATE SUMMARY CONCEPT DESIGN REPORT MODULAR POWER PLANT $539,500 SITE WORK $34,850 FIELD SETUP MODULAR POWER PLANT $25,800 DISTRIBUTION UPGRADES $36,700 OVERHEAD $42,800 FREIGHT $19,890 CONSTRUCTION SUB-TOTAL $699,540 DESIGN AND CONSTRUCTION ADMIN.$60,000 CONSTRUCTION MANAGEMENT $60,000 PROJECT SUB-TOTAL $819,540 CONTINGENCY $122,931 15 % TOTAL PROJECT COST $942,471 TOTAL INSTALLED KW CAPACITY 270 kW COST PER KW OF INSTALLED CAPACITY $3,490.63 B-5 ALASKA ENERGY AND TENAKEE SPRINGS POWER SYSTEM UPGRADE AUGUST 23,2004 ENGINEERING CONSTRUCTION COST ESTIMATE CONCEPT DESIGN REPORT ITEM QUAN |UNIT UNIT MATL UNIT |LAB |LAB |}LABOR |CONTR |FREIGHT |TOTAL UNIT TOTALCOSTCOSTHRS}|HRS {RATE}COST COST COST COST WT WT(#) MODULAR POWER PLANT 88 kW Genset (JD 6068)2|ea.$37,500 |$75,000 30 60}$75 $4,500 $79,500 64 kW Genset (JD 4045)1)ea.$33,000 |$33,000 30 30}$75 $2,250 $35,250 Switchgear &Interconnect Wirin 1{ea.|$120,000 |$120,000 100}100]$75}$7,500 $127,500 Fire Supression 1]lump |$25,000 |$25,000 80 80|$75 $6,000 $31,000 Ventilation 1]lump |$10,000 |$10,000 60 60}$75 $4,500 $14,500 Day Tank 1|lump $8,000 $8,000 40 40|$75 $3,000 $11,000 Used Oil Blender 1|lump |$10,000 |$10,000 40 40|$75 $3,000 $13,000 Fuel/Lube Oil Piping 1|jump $3,000 $3,000 60 60]$75 $4,500 $7,500 Radiators,HX,Exp Tank 4|lump |$16,000 |$16,000 80 80|$75 $6,000 $22,000 Coolant/Heat Recov Piping 1]lump |$12,000 |$12,000 100}100]$75{$7,500 $19,500 Exhaust Thimbles,Pipe,Etc 1{Jump $3,000 $3,000 40 40}$75}$3,000 $6,000 Station Service Devices/Wiring 1{lump |$20,000 |$20,000 200 200}$75]$15,000 $35,000 VFD &Day Tank Panels 1}lump {|$15,000 |$15,000 60 60}$75 $4,500 $19,500 Misc Strut,Hangers,Fasteners 1|lump |$10,000 |$10,000 40 40|$75 $3,000 $13,000 Module Structure 1|ea.|$90,000}$90,000 0 0}$75 $0 $90,000 Move/Setup Module 1|_lump $2,000 $2,000 10 10]$75 $750 $2,750 Fill Coolant,Fuel,&Lube 1]lump $5,000 $5,000 20 20}$75 |$1,500 $6,500 Shop Load Test 1}lump $0 $0 80 80}$75]$6,000 $6,000 SITE WORK Demo Stairs,Clear Site,Grade 1]lump $0 $0 120}120]$60]$7,200 $7,200 Gravel 100]cu.yd.$20 $2,000 0.5 50}$60]$3,000 $5,000 Place Module on Site 1|lump $0 $0 40 40}$60 $2,400 $2,400 Install Access Stairs 135]ft.$90}$12,150 1 135)$60|$8,100 $20,250 50 6,750 FIELD SET UP MODULULAR POWER PLANT install Roof System 4}lump $8,000 $8,000 150 150|$60 $9,000 $17,000 }2,500 2,500 Install Landing 1|lump {$4,000 $4,000 40 40}$60]$2,400 $6,400 |2,500 2,500 install Hoods &Exhaust 1|lump $0 $0 40 40|$60}$2,400 $2,400 |2,500 2,500 DISTRIBUTION UPGRADES Install/Connect Step Up XFRMR 1}lump $7,500 $7,500 60 60}$80|$4,800 $12,300 Distribution Upgrades 1]lump |$18,000 |$18,000 100 80]$80]$6,400 $24,400 OVERHEAD Audit Grants 1|lump $6,000 $6,000 Rent Heavy Equip.1}lump $20,000 $20,000 Commission/Train Operators 1}lump $5,000 $5,000 Superintendent Overhd Off-Site 30]hr 1 30]$80}$2,400 $2,400 B-6 ALASKA ENERGY AND TENAKEE SPRINGS POWER SYSTEM UPGRADE AUGUST 23,2004 ENGINEERING CONSTRUCTION COST ESTIMATE CONCEPT DESIGN REPORT ITEM QUAN]UNIT UNIT MATL UNIT |LAB |LAB |LABOR |CONTR |FREIGHT |TOTAL UNIT TOTALCOSTCOST|HRS |HRS |RATE|COST COST COST COST WT WT(#) Superintendent Overhd On-Site 30}hr 1 30}$80 $2,400 $2,400 Crew Travel Time 20)hr 1 20]$80!$1,600 $1,600 Crew Airfares 2{_trips $1,800 $1,800 Crew Per Diem 50|mn.dy $2,100 $2,100 Housing Rent 1]mo.$1,500 $1,500 FREIGHT 14,250 Barge Freight Seattle-Sitka 14250 tb.$0.20 $2,850 Barge Module Seattle-Sitka 504 }sq.ft.$10.00 $5,040 Barge Equip/Freight Mob/De-Mq 2|day $4,000 $8,000 Project De-Mob 1]day $2,000 $2,000 Misc Small Freight &Gold Strea 1+lump $2,000 $2,000 CONSTRUCTION SUB-TOTAL $508,650 1,895 $134,600 |$36,400 $19,890 |009,540 Engineering (Design &CCA)1ilump $60,000 Construction Management 1}lump $60,000'PROJECT SUB-TOTAL $508,000 $134,600 [$156,400 |$19,890 |$819,504 ontingency T5|%[$122,931|[TOTAL PROJECT COST $942,471| ALASKA ENERGY AND TENAKEE SPRINGS HYDROELECTRIC GENERATION AUGUST 23,2004 ENGINEERING COST ESTIMATE SUMMARY CONCEPT DESIGN REPORT WORK ITEM MATERIAL LABOR TOTAL COST ESTIMATE FOR SIMILAR ATKA HYDRO PROJECT $1,400,000 LESS ATKA OVERHEAD TRANSMISSION COST (APPROX)($100,000) LESS ATKA PROJECT ACCESS COST (APPROX)($30,000) 6,000'OF ACCESS TRAILS @ $38/FT $228,000 75kVA HYDROPOWER STEP-UP TRANSFORMER BANK $7,500 $5,000 $12,500 4,000'SHALLOW-BURY 12.47/7.2kV TRANSMISSION LINE $86,000 $14,000 $100,000 DISTRIBUTION UPGRADES (1,300'1-PHASE TO 3-PHASE)$18,000 $18,000 $36,000 CONSTRUCTION SUB-TOTAL $1,646,500 DESIGN AND CONSTRUCTION ADMIN.$100,000 CONSTRUCTION MANAGEMENT $100,000 FERC PERMITTING $150,000 PROJECT SUB-TOTAL $1,996,500 CONTINGENCY $299,475 15 % TOTAL PROJECT COST $2,295,975 TOTAL GENERATION CAPACITY 125 kw COST PER kW GENERATION CAPACITY $18,368 B-8 APPENDIX C SITE CONTROL DOCUMENTS Alaska Energy and Enggineering,mnInc.Mailing Address-P.O.Box 111405Anchorage,AK 99511-1405(9 7)349-0100349-8001 fax June 22,2004 First American Title of Alaska @ Pages Faxed)907-789-7395 Attn:Mary2227N.Jordan Avenue Juneau,AK 99801 Subject:Tenakee Springs Certificate to Plat Information Dear Mary: Please find enclosed Sheet 1 of 1,Tenakee Springs Power Plant and Bulk FuelUpgradePropertyPlan.Please prepare a Certificate to Plat including the following properties: US Survey 1418 Tract 1 E Street,Tenakee Avenue and Chichagof Avenue Lots 6 &7,Block 11 Lots 1,2,and 3,Block 12 ATS 524 MSR #4,Survey 1409OarWwn>Please indicate the estimated lead-time to deliver the Certificate to Plat. You are authorized to bill up to $500 for this effort.If you anticipate exceedingthisamount,please call me prior to proceeding. If you have any questions,please call me at (907)349-0100,or fax your comments to(907)349-8001. Sincerely, nd Mngineering,Inc. President Attachments -as noted a[@xcT |M.S.R.Nod SUR.No 1409 [- CHICHAGOF AVE. LOT 7 LOT 6 LOT 5 LOT 4 -. W (11)ineeeos"(N = Wo 4 M.S.R.No3 = SUR.No 1409 [Lot 1 |LoT 2 LOT 3 a a” TENAKEE AVE. ee* |BirI fi f |ars ase LJ Provect:TENAKEE SPRINGS POWER PLANT AND BULK FUEL UPGRADE TITLE:*Deporkgent of Comsn att)ond Eanomic DevelopmentPROPERTYPLAN*,wil EAS AEApy.oN 813 West Northern Lighte nn fe A4ASSAAnchorage,Ataeka 99503DRAWNBy:=SUS ScaE:1"=60"prop-pian ISH 1FILENAMEISHOF ue DESIGNED BY:SUS ore:3-24-04 08/11/2004 15:48 FAX 907 7897395 FIRST AMERICAN TITLE @ 002/002 FIRST.AMERICAN TITLE ofAlaska 2227 North Jordan Avenue,Juneau,AK 99801 Phone:(907)789-5252 Fax (907)780-7395 CERTIFICATE TO PLAT ) ORDER NO:2040180 TO:Alaska Energy and Engineering,inc. P.O.Box 111405 Anchorage,AK 99511 Attn:Steven Stassel Fee $300.00 This is a Certificate as of July 29,2004,at 8:00AM a.m.for a plat of the following described property: . / Lots 6 and 7,Block 11 and Lots 1,2 and 3,Block 12,U.S.Survey 1418,Townsite of Tenakee,Records of the Sitka Recording District,First Judicial District,State of Alaska. AND Alaska Tidelands Survey 524,Records of the Sitka Recording District,First Judicial District,State of Alaska. ANDTract 3,U.S.Survey 1418,Records of the Sitka Recording District,First Judicial District,State ofAlaska, EXCEPTING THEREFROM those portions conveyed to Orren Barber and Barbara Barber in Quit Claim deed recorded June 7,1984 in Book 65,Page 219. The company certifies that record title is vested in: CITY OF TENAKEE SPRINGS,as to Lots 6 and 7,Block 11 and that certain portion of Tract 3,U.S.Survey 1418 and a portion of ATS 524 and LACANO INVESTMENTS,LLC,as to Lots 1,2 and 3,Block 12 and a portion of ATS 524freefromailliens,encumbrances and objections EXCEPT AS FOLLOWS: SUBJECT TO: 1.Reservations and exceptions as contained in the U.S.Patent. 2.Reservations and exceptions as contained in the State of Alaska Patent. BSrrce.PeTreAn LA DTANATTTTVN'WeGrtis.6 &NHF1ae3ARePLaALannAe FIRST AMERICAN TITLE of Alaska '2227 North Jordan Avenue,Juneau,AK 99801 Phone:(907)789-5252 Fax (907)789-7395 3.Subject property does not lie within a organized taxing district. 4.Any adverse claim to any portion of said land which lies below the mean high water line'of Tenakee Inlet.. 5.Any prohibition or limitation on the use,occupancy or improvements of the land resulting from the right of the public or riparian owners to use any waters which may cover the land or to use.| any portion of the land which is now or may formerly have been covered by water. 6.Any adverse claim based upon the assertion that some portion of said land is tide or submerged lands,or has been created by artificial means or has accreted to such portion so created. 7.Any preference rights which may exist under the Alaska Land Act,terms,provisions and reservations under the Submerged Lands Act (43 USCA 1301,67 Stat.29)and the enabling act (Public Law 85-508,72 Stat.339) 3 8.Any prohibition or limitation on the use,occupancy or improvements of the land resulting from the right of the public or riparian owners to use any waters which may cover the land or to use any portion of the land which is now or may formerly have been covered by water. 9.Rights of the public and/or any governmental agencies in and to any portion of the above described real property lying within any roads,streets or highways. 10.Easement for right of way and appurtenances thereto granted to STATE OF ALASKA, DEPARTMENT OF TRANSPORTATION,recorded July 16,1984,Book 65 Page 953. 11.Deed of Trust,including the terms and provisions thereof,to secure an indebtedness: Amount :$1,030,000.00 Trustor :LACANO INVESTMENTS LLC Trustee :SOUTHEASTERNTITLE AGENCY Beneficiary :ALASKA PACIFIC BANK° Dated :February 27,2004 Recorded :March 1,2004 Serial Number :2004-000368-0 (AFFECTS THIS AND OTHER PROPERTY) 12.Easement for telephone utilities and appurtenances thereto granted to Telephone Utilities of the Northland,Inc./dba/PT|Communications,recorded September 27,1991,Book 350 Page 115.(AS TO TRACT 3) Page 2 FIRST AMERICAN TITLE of Alaska "2227 North Jordan Avenue,Juneau,AK 99801 Phone:(907)789-5252 Fax (907)789-7395 This report is restricted to the use of the addressee,and is not to be used for closing any transaction affecting title to said property.Liability of the Agency is limited to the amount of fee paid herein. FIRST AMERICAN TITLE of ALASKA Colleen Gordon,Title Officer MD/MB Typed:July 22,2004 Page 3 APPENDIX D GEOTECHNICAL DATA A.W.Murfitt Company CONSULTING ENGINEERS &TESTING 13810 Venus Way #Anchorage,Alaska 99515 ®(907)345-2737 June 30,2004 Alaska Energy and Engineering,Inc. P.O.Box 111405 Anchorage,AK 99511-1405 ATTENTION:Mr.Steve Stassel,P.E. RE:-Tenakee Springs Bulk Fuel and Power Plant Upgrade Subsurface Soil and Foundation Conditions Lots 6 and 7,Block 11,Portion of Tract 1 and Chicagof Avenue,U.S.Survey 1418 Tenakee Springs,Alaska 99841 AWM Co.Job 04-313.15 Dear Mr.Stassel: We have performed a foundation condition evaluation for the proposed fuel tank and power plant upgrades at the above referenced property,pursuant to our written proposal of May 18,2004.We understand that the steel tank structures will be horizontal and skid mounted.The new power plant will be a modular unit and skid mounted.This letter report is intended to document our findings and present our recommendations for the foundation design for this structure. Foundation considerations and recommendations presented in this report have been developed from our field observations made during our site visit on June 8,2004 and a review of geotechnical information gathered from previous area developments as well as local geotechnical hazards.This document has been prepared for the exclusive use of Alaska Energy and Engineering,Inc.,the City of Tenakee Springs,Alaska and their authorized agents in the design and construction of the proposed facility upgrades at this site.Use of this document by prospective contractors for the preparation of bid and contract documents should be for information on factual data and not as a warranty of subsurface conditions.This report has been prepared in accordance with generally accepted geotechnical engineering practices.It is not intended to provide a warranty and/or guaranty,expressed or implied,of site conditions.Reproduction of this document in whole or in part, without authorized permission in writing,is strictly forbidden. FIELD EXPLORATION Test pits were excavated by hand digging at the site located upslope of the existing City tank farm.Mr.Allan Murfitt,P.E.of this firm logged the test pits.Mr.John Dickerson of Alaska Energy and Engineering,Inc.was present to witness and expedite the work. Due to the difficulty in digging,test depths were limited to 1.5 feet below the ground surface.Approximate Page 2 04-313.15 Tenakee Springs Bulk Fuel June 30,2004 locations are shown on the attached Site Plan,Plate S1. DESCRIPTION OF SITE Tenakee Springs is located in southeast Alaska,on the north shore of Tenakee Inlet on Chicagof Island in a coastal environment approximately 50 air miles south west of Juneau,the Alaska state capitol.The building site is currently undeveloped,treed,and is unoccupied.Vegetation in the area consists of moderately dense second growth spruce (12 to 18 inch diameters,60 to 80 feet high)rain forest with minimal]underbrush.The existing root mat is substantial as the area appears to have been logged some time in the past.The site is immediately north of the existing tank farm,and slopes to the south.Slopes appear to be relatively stable. There is no apparent evidence of a snow slide potential in the immediate area.Subsurface water (consisting of precipitation runoff)is near the surface as the site is bedrock controlled.The site has no potential for flooding or Tsunami exposure.Winter surface icings may be an issue as the bedrock is relatively impermeable. The site soils are primarily bedrock and are not expected to present a seismic liquefaction problem under the influence of a strong earthquake.In addition,rock slopes appear to be stable and competent.Building codes require a structural wind design load analysis equivalent to a 120 mile per hour,3-second event,Exposure D. Under the 2000 International Building Code,we would rate the Site Classification as C and the Seismic Use Group as III for this facility.The design spectral response accelerations,S,and S,for a 0.2 and 1.0 second period are 99.2 and 40.3 percent g,respectively.These values are from the spectral response contours for the area established by area postal codes in the IBC seismic addenda.Snow loads should be analyzed for a minimum of 50 pounds per square foot (ground snow load 60 pounds per square foot).The mean annual precipitation for the area is 140 inches.No permafrost or perennially frozen ground,as is known to occur in Alaska,is expected at this site. SUBSURFACE SOIL CONDITIONS The first Test Pit was located in a spring stream bed,east of the site to minimize digging through the root mat, estimated at 2 to 3 feet in thickness.Soils to a depth of 1.5 feet in the bed consisted of a gray Silty Clayey Sandy Gravel (GM-GC)with cobbles and rocks to 18 inches.These are typical glacial till soils.The second Test Pit was dug approximately 80 feet north (up slope)of the existing east tank.The root mat with dark brown Organic Silt (OL)was approximately 1.5 feet thick.This was underlain by a gray Silty Clay (GM-GC)with Sand and Gravel to 12 inches diameter to a total depth of 3 feet.The third Test pit was dug in a trail approximately 60 feet up slope of the west tank.Three inch diameter black steel pipe was found traversing the slope in the hole,a few inches from the surface.Soils consisted of a dark brown black Silty Gravel (GM)to an excavation depth of 1.5 feet.Bedrock (although not visible at the site)in the area is relatively competent greywacke (metamorphosed sediments and volcanics)with horizontal bedding dipping 10 to 20 %to the north. Near surface weathered material can be ripped with a dozer to level out benches for the installations.Mineral soils were generally wet,with sheet surface drainage. Symbols and Terminology used to describe the soil are shown on Plates 2 and 3,attached. Existing tank foundations were formed by excavating a bench in the soils and founding the tanks on treated (creosoted)4 by 12 timber sleepers.This had standing water in the foundation area at the time of our site visit. Page 3 04-313.15 Tenakee Springs Bulk Fuel June 30,2004 FOUNDATION DESIGN RECOMMENDATIONS It was initially planned to found the installations on pilings,however,in view of the cobbles,rocks and boulders in the thin surficial soil profile,we believe that this would be a difficult feat.Our recommended plan would be to construct benches/terraces to support the tanks and power plant.There are natural benches (shown by the site plan contours)which could be shaped by cutting and filling.Skid/sleeper supports for the installations would be founded on bedrock,site soils and fill as necessary.Organics should be stripped from all foundation installations and can be redistributed and shaped around the benches in conjunction with siltation fences (filter fabric)to prevent site soil erosion and act as a containment structure. All exposed foundation subgrades (free of organics)and leveling fill should be compacted to a minimum density of 95%of the maximum density for those materials as determined by ASTM D 1557 and/or AASHTO T 180.General structural fill in and around the tank/power plant foundation can consist of a clean,well graded, 3”minus Sandy Gravel (GW)and/or Gravelly Sand (SW)compacted as specified.These structural fill materials should contain no more than 6 percent passing the #200 sieve.Structural fills should be placed in maximum 8-inch lifts and compacted as specified. Based on the prepared subgrade with the structural fill,foundations can be designed using an allowable bearing capacity of one thousand five hundred (1,500)pounds per square foot for combined dead and live loading. This may be increased by 1/3 for transient loads such as those associated with wind and seismic action.The minimum footing width recommended is twelve (12)inches.Design soil lateral load for site mineral soils (GM-GC)should be 60 pounds per square foot per foot of depth.We would expect seasonal frost action to be minimal however;pipe racking and other similar installations should be designed to tolerate 6 inches of differential movement.Final site grading should provide positive drainage away from the foundations and not result in hydraulic erosion of fill materials.In addition,drainage swales should be constructed to keep seasonal icings away from structures. In general,soil and rock back slopes may be cut near vertical but set back far enough from the tank to prevent rock fall damage.Trees at the site should also be cleared sufficiently far back to prevent damage in the event of a blow down. CLOSURE It is very important to ensure that the foundation system is construed in accordance with the foregoing design recommendations and specifications,and accordingly,should be under the scrutiny of a competent geotechnical engineer.This individual should be able to respond to unanticipated site conditions not accounted for in our investigation.Unanticipated soil conditions are commonly encountered and cannot be fully determined in performance of test borings.Such unexpected conditions frequently require that additional expenditures be made to obtain a properly constructed project.Therefore,some contingency fund is recommended to accommodate such potential extra costs. In order to ensure that construction and materials meet the intent of the design,local building codes,and workmanship,our staff and in house materials testing laboratory will be available to the project as necessary.In addition,we can perform special inspection services (bolting,welding,etc.)for the owner as required by the IBC 2000. We appreciate this opportunity to serve you on this project.Please do not hesitate to call if you have any PROPOSED CITY TANK |a FARM/POWER PLANTi--0 ; "00 J PROPERTY BOUNDARY[a ee Pa eae APPROXIMATE EXISTING [/es en eer GROUND CONTOURposeSRreSSE.ELEVATIONSPoseie*y SOSYrs s _TL '.yN . 4 a i oe 7 .ae SN SON LETewsysa>}x SNL LeT- TAL S re Sy "Kh ye --7meSeee- +. 7s ==ZT y -SN --170' f°4 _[ Tan ===]LT?qT Aj(- f >>>__LISK:GAL_GASOLIN AN)eee _=|>ZBASOUNETANK [Fanos SS YP --oo7ABENCHEL 4\|6K GAt GAS._DISP> \T ree4/160" J eee iaotaeasnrae t jt ron Gee po IqeTRJtan22=a ee427777=y=-[20K GALA DIESEL 4./pieset TANK)[tank 1 F-@A\--158"|/BENCH-EL.\20K GAL.#2 DIESEL}-"50.Tp pte - PN {---- <4}Tes PITaortttt:LOCAT IOUS 445°™,ae ae a-re ae{ss Nee eee.]a Oe oe aon "77 -_-_eollt+slo pl rl ----- LITTL--tLe -_lJ>>-2l t>-l4----52cr imate neoeSnaesereToneeoeerowaoLLL”"- --7dilU++Ltt et -------- -LIIeee efe7seTe-_a a _{o>> lit - lbT------pa IIIiit 2-HAn 155refleceee?flit +t eoe rrrre:ors--------- TlL---|-we Ttet tyr Le 7 Le ee ee mtr Le -=N \oe "7 er ee eee --yell ilps pera titicisise rise E --7 -b--I tly Ue 'EXISTING TANKS TO:na " ae oe \BE ABANDONED -€5-"7 > 29 NQ-!Te 1 _- S 7t{f'CHICHAGOFAVE.EXTENDED!T!/(I||!ryi|rfiNI{od--|t'-zINOonPROIECE:TENAKEE SPRINGS BULK FUEL STORAGE |owme:JID |sce 1725'ot CometttAatkoANDPOWERSYSTEMUPGRADEveseaenBeAWM|owt:7/15/04 [*Separyent ADEA AEA ' yo N Rural = ALASKATmE:TANK FARM &POWER PLANT AREA SHEET oF B13 weet NorthernLightsBd.G Sab Lutacy SOTHORTSSITEPLAN-TEST HOLE LOCATIONS TENA-CDR-S1 |S ]oe Anchorage.Mowe 9E03 UNIFIED SOIL CLASSIFICATION SYSTEM Major Divisions Typical Names eyeGW2>4 WELL GRADED GRAVELS,GRAVEL -SANDCLEANGRAVELSaresMIXTURESGRAVELS|WITHLITTLE OR fA no NO FINES POORLY GRADED GRAVELS,GRAVEL -SAND"4S MIXTURESO28SILTYGRAVELS,POORLY GRADED GRAVEL -Y%8]MORE THAN HALF GM SAND -SILT MIXTURESQ3COARSEFRACTION]GRAVELS WITHayWy|Nod ene oon OVER 12%FINES CLAYEY GRAVELS,POORLY GRADEDsy"es GRAVEL -SAND -CLAY MIXTURESesba]Oo?CLEAN SANDS WELL GRADED SAND,GRAVELLY SANDS WW #SANDS WITH LITTLE OR?z NO FINES POORLY GRADED SANDS,GRAVELLY SANDS qr°)e SILTY SANDS,POORLY GRADED SAND-CLAYO2MORETHANHALFSANDSMIXTURESCOARSEFRACTIONISSMALLERTHAN|WITH OVERNO.4 SEIVE SIZE 12%FINES CLAYEY SANDS,POORLY GRADED SAND - .CLAY MIXTURES INORGANIC SILTS AND VERY FINE SANDS,ROCwMLFLOUR,SILTY OR CLAYEY FINE SANDS,ORrrCLAYEYSILTSWITHSLIGHTPLASITICITY4gSILTSANDCLAYSZINORGANICCLAYSOFLOWTOMEDIUMoO&CL Yy,PLASTICITY,GRAVELLY GLAYS,SANDY CLAYS,ILTY CLAYS,LEA®3)uiQuiD LIMITLESS THAN 50 Ka nousO«OL KAA ORGANIC CLAYS AND ORGANIC SILTY CLAYSWJRNAOOFLOWPLASTICITY =&INORGANIC SILTS MICACEOUS ORo2MHDIATOMACIOUSFINESANDYORSILTY SOILS,©@ -SILTSAND CLAYS ELASTIC sts wz CH YY INORGANIC CLAYS OF HIGH PLASTICITY,FATZi"CLAYS LL |LIQUID LIMIT GREATER THAN 50 : x OH ORGANIC CLAYS OF MEDIUM TO HIGH >PLASTICITY,ORGANIC SILTS HIGHLY ORGANIC SOILS Pt E5<<4 #PEATAND OTHER HIGHLY ORGANIC SOILS Shear Strength,psf|a Confining Pressures,psf Consol -Consolidation *Tx 320 (2600)Unconsolidated Undrained Triaxial LL -Liquid Limit (in %)TxCU 320 (2600)Consolidated Undrained Triaxial PI -Plastic Limit (in %)DS 2750 =(2000)Consolidated Drained Direct Shear Gs -Specific Gravity FVS 470 Field Vane Shear SA --Sieve Analysis *UCc 2000 Unconfined Compression BP")-"Undisturbed"Sample LVS =700 Laboratory Vane Shear (<=)-Bulk Sample Notes:(1)All strength tests on 2.8"or 2.4"diameter samples unless otherwise indicated. (2)"Indicates 1.4"diameter sample. Consulting Engineers and Testingene 9 PLATEA.W.Murfitt Company |SOll CLAssIFICATION CHART 13810 Venus Way Anchorage,AK 99515 AND ?(907)345-2737 Fax:(907)345-3264 KEY TO TEST DATA Job No.04-313.15 Date:6/30/04 Soil Classification Chart >PSSs.@ 9 oe ¢P@2)DisgS64aa% > "Ys \\GRAVELayyAaw/|iS SANDYSRAVEL e/\oO,O S SAND GRAVELY SAND SANDY GRAVEL GRAVEL S O 0 10 20 30 40 30 60 70 80 90 100 Gravel (+#4 Screen)%By Weight Corpsof Engineers Frost Design Soil Classification and USCS Equivalent Grouping Typical soil types under Percentage finer than Unified Soil Frost Group Kind of Soil 0.02 mm by weight Classification System NFS*(a)Gravels 0-1.5 GW,GP Crushed Stone Crushed Rock (b)Sands 0-3 SW,SP PFS"(a)Gravels 15-3 GW,GP Crushed Stone Crushed Rock (b)Sands 3-10 SW,SP $1 Gravelly Soils 3-6 GW,GP,GW-GM,GP-GM $2 Sandy Soils 3-6 SW,SP,SW-SM,SP-SM F1 Gravelly Soils 6 to 10 GM,GW-GM,GP-GM F2 (a)Gravelly Soils 10 to 20 GM,GW-GM,GP-GM (b)Sands 6 to 15 SM,SW-SM,SP-SM F3 (a)Gravelly Soils Over 20 GM,OC (b)Sands,except for very silty sands Over 15 SM,SC (c)Clays,PIl>12 -CL,CH F4 (a)All silts -ML,MH (b)Very fine silty sands Over 15 SM (c)Clays,Pl>12 -CL,CL-ML (d)Varved clays and other fine-grained,bad CL and ML;CL,ML,and SM; banded sediments CL,CH,and ML;CL,CH, ML and SM *Non-frost-susceptible. **Possibly frost-susceptible,but requires laboratory test to determine frost design soils classification. Consulting Engineers and Testing PLATEA.W.Murfitt Company Textural and Frost 13810 Venus Way Anchorage,AK 99515 Design Soil 3(907)345-2737 Fax:(907)345-3264 Classification Job No.04-313.15 Date:6/30/04 APPENDIX E HYDROELECTRIC REVIEW AND ANALYSIS hy ONE COMPANYDa.Many Solutions™ Memo To:Steve Stassel,AE&E From:Bob Butera,HDR Project:Indian River (Tenakee Springs) Hydroelectric Project ee _ FINAL CC: Date:_August 4,2004 Job No:XXXXXXXKX Introduction Two previous reports (1984 Corps of Engineers Hydro Study and 1993 Polarconsult Hydro Feasibility)analyzed the feasibility of a hydroelectric project at Tenakee Springs.In 1998 a fish ladder was constructed on Indian River by the USFS.Alaska Energy and Engineering (AE&E)is performing an energy analysis for the community of Tenakee Springs.As part of this analysis AE&E requested HDR Alaska,Inc.(HDR)to review the two reports and to determine whether there was sufficient water to produce firm power for an approximately 100 kW hydroelectric plant considering the recent installation of a fish ladder.HDR was also requested to provide a budgetary cost estimate for the project.Funding for this work was limited and therefore the extent of the analysis is cursory. Background The USCOE selected a 265 kW project on Indian River as the preferred alternative.Polarconsult selected a 125 kW project on Indian River as the preferred alternative.Table 1 is a comparison of the two projects. Table 1 --Comparison of USCOE and Polarconsult Proposed Projects USCOE Polarconsult Location Indian River Indian River Top barrier 5 to base barrier 3 Top barrier 4 to base barrier 2 Capacity 265 kW 125 kW Gross Head 80 feet 58 Design Head 71 feet 50 Design Flow 52 cfs 41 Penstock Diameter 42 inches 30 inches Penstock Length 2400 feet 1,440 feet Transmission Line 3750 feet,OHE on poles 5280 feet,OHE on trees Original Construction Cost $3,011,000 (1984 Dollars)$501,788 (1993 Dollars) The USCOE selected its project size based on a projected load growth of 2.5%from 1986 to 2006 and 1%thereafter.The Polarconsult project size was based on a zero load growth. HDR Alaska,Inc.2525 C Street Suite 305 Anchorage,AK 99503 Phone (907)644-2000 Fax (907)644-2022 www.hdrinc.com Page 1 of4 Availability of Water The USCOE report developed monthly flow and power duration curves for its proposed 265 kW plant.These curves were based on 7 years of flow data from Indian River.Polarconsult correlated this data to data from Kadashan River,9 miles south of Tenakee,which had 27 years of record at the time of the Polarconsult study.A correlation coefficient of 0.89 was obtained.Using this correlation the Kadasham data was adjusted to simulate flow in Indian River.This data was then used to produce a synthetic 50 year data record for Indian River. Flow data was not included in the Polarconsult report,but based on this data Polarconsult stated "it is likely that diesel power will have to augment the hydro power generation during the months of January,February and March. A fish ladder was constructed on Indian River by the USFS in 1998.This ladder is located at fish passage barrier number 4.This location is just downstream of the proposed Polarconsult diversion. HDR contacted Greg Killinger of the USFS (now with USFS Craig District,907-826-3271).Greg was involved with the design and construction of the fish ladder.He stated that the fish ladder required about 10-15 cfs,although this was a "top of the head”number.Ken Coffin with the USFS Sitka District (907-747-4343)was contacted.Ken researched the project files but could not locate any information on required flows.He has scheduleda site visit for August 24°2004 to determine the amount of flow required to operate the fish ladder.Ken stated that: e The ladder is used by adult coho from the end of August through early December.This year was their first return of adult coho.They have not been able to monitor the site to determine if passage was successful. e The period of time when fish passage is required is coincident with the fall period of high flows in Indian River. e There are no Chinook Salmon in Indian River. e A few steelhead and Dolly Varden may also use the fishpass. e The spawning habitat in Indian River between the proposed intake and the powerhouse is poor. The Polarconsult study reported that peak electrical demands were recorded for the month of October 1990 and that the peak during a week of this month was 75 kW.Table 2 shows the percent of time flow is available to meet this peak demand.This table is based on the following assumptions: e The 75 kW peak demand is still valid. e Production of this amount of power from the Polarconsult project layout will require 25 cfs of water. e The fish ladder will require 15 cfs of water during the period of September through November. e No instream flows are required in the reach between the intake and the powerhouse e Since the Polarconsult synthetic flow data were not available,the monthly flow duration curves provided in the USCOE report were used to determine the available flow. Analysis of the power recorder,provided by AE&E,shows that the community loads are 50kW or less more than 95%of the time.The spikes above 50kW are short in duration and some days the peak never exceeds SOkW.Table 2 shows the percent of time flow is available to meet this average demand of S50kW. HDR Alaska,Inc.2525 C Street Phone (907)644-2000 Page 2 of 4 Suite 305 Fax (907)644-2022 Anchorage,AK 99503 www.hdrinc.com Month Flow Required |Percent of Flow Required |Percent of to Meet Peak |Time Flow to Meet Average |Time Flow Demand (cfs)|Availableto |Demand (cfs)Available to Meet Peak Meet Average Demand Demand January 25 64 20 70 February 25 56 20 60 March 25 70 20 74 April 25 92 20 96 May 25 100 20 100 June 25 98 20 100 July 25 94 20 96 August 25 62 20 74 September 40 76 35 88 October 40 98 35 100 November 40 92 35 98 December 25 76 20 80 Estimate of Cost Table 2 -Percent of Time Flow Available to Meet Peak and Average Demand Polarconsult determined that a 125 KW project was the most appropriate size for Tenakee,provided reconnaissance level drawings,and estimated costs for the project.The Polarconsult project had the following components and assumptions: 3 foot tall steel framed,wood faced diversion structure Intake box with a top grate. Settling chamber to remove sediment. Sheet aluminum flume mounted on timber supports with average support height of 10 feet Timber powerhouse. Ossberger cross flow turbine Overhead power line suspended from trees along ridge from powerhouse to public dock. Upgrade from single to three phase 950 feet of power line from harbor to town. Force account labor with average rate,including fringe benefits of $15 per hour Crew living in camp on site Work completed mostly with hand tools. Access via trails 2 months to complete project Variable contingency factors for specific items between 0 to 40%. Engineering at 8%,CM at 5%,administration at 3% No FERC permitting Agency permitting costs assumed to be included in engineering costs. Contingency of approximately 13% The cost estimate was completed March 1993 The project did not include fish screens HDR has updated this estimate based on the following assumptions: HDR Alaska,Inc.Phone (907)644-2000 Fax (907)644-2022 www.hdrinc.com 2525 C Street Suite 305 Anchorage,AK 99503 Page3of4 The project will be as designed by Polarconsult. e The original estimate and contingency factors by Polarconsult are reasonable and accurate. e The project will pay force account wage rates.An average wage rate of $35 per hour including base wage,fringe,WC,and overtime @ seven 10-hr days/week was provided by AE&E as typical for rural projects. The project will be constructed in 2004. Inflation factor of 1.41 based on Engineering News Record construction cost index.(March 1993=5106,August 2004=7188). e Fish screens will be required at the intake and are estimated at $50,000. Estimate does not include the costs of design,permitting,contract administration,construction financing,project financing,and construction management. With the above assumptions the estimated direct construction cost for the project is $807,000. HDR feels that this estimate may be low because it assumes that much of the work can be accomplished by hand labor,with minimal access.In addition,the level of detail included in the diversion,intake and powerhouse drawings is minimal.In order to develop an order of magnitude estimate that accounts for this,without the effort of developing an entirely new estimate,we have compared the project to a similar project in Atka,designed by Polarconsult,for which HDR recently provided a construction estimate.That project used a 30 inch penstock,and a buried transmission line.These modifications to the Tenakee project may be desirable.That project estimate was based on construction by a general contractor,with Davis Bacon wage rates.We revised the labor rates and the gross quantities of project components and arrived at a direct construction cost of $1,400,000. HDR Alaska,Inc.2525 C Street Phone (907)644-2000 Page 4 of 4Suite305Fax(907)644-2022 Anchorage,AK 99503 www.hdrinc.com APPENDIX F COMMUNITY CORRESPONDENCE Preliminary Recommendations -Approval Preliminary Recommendations Community Project Resolution Site Control/Resolution Letter Community Labor Pool Site Investigations Correspondence CITY OF TENAKEE SPRINGSSHELLYP.WILSON MAYOR 4 ADMINISTRATION i e E V i PHONE&FAX (907)736-2207 JUL 29 2004 ; July 27,2004 AIBEA/AEA David Lockard,P.E. 813 West Northern Lights Blvd. Anchorage,Alaska 99503 Re:-Tenakee Springs Bulk Fucl &Power System Upgrade Preliminary Recommendations Dear Mr.Lockard, On 7/22/04 at our regular city council meeting we voted unanimously,to approve the Tenakee Springs Bulk Fuel &Power System Upgrade Preliminary Recommendations. The Tenakee Springs City Council continues to support this project. We thank you for your continued efforts in this very important project. Sincerely,A haref ChorOGGMayor POST OFFICE BOX 52 . TENAKEE SPRINGS,ALASKA 9984| Alaska Energy and Engineering,Inc.P.O.Box 111405 Anchorage,AK 99511-1405 Phone (907)336-8031 Fax 336-7527 July 2,2004 9 pages total sent via fax to: e The Honorable Shelly Wilson,Mayor,City of Tenakee Springs,736-2207 e David Lockard,AEA/REG,269-3044 Re:Tenakee Springs Bulk Fuel &Power System UpgradePreliminaryRecommendations Representatives of the Alaska Energy Authority /Rural Energy Group (AEA/REG)andAlaskaEnergyandEngineering(AE&E)have now completed several site investigationtripsandhaveanalyzedthecollecteddataconcerningthepotentialTenakeeSpringsBulkFuel&Power System Upgrade project.During our site investigations andsubsequentfollow-up communications several issues were identified that need to be resolved in order to define the project scope so that it can advance to the conceptualdesignphase.These issues include: 1)Status of existing community fuel storage facilities 2)Required fuel storage capacity 3)Location of proposed tank farm 4)Description of proposed fuel storage and handling facility 5)Status of existing community power plant 6)Required community generation capacity 7)Description of proposed power plant and distribution upgrades 8)Beach access and project staging area 9)Local sources of gravel 10)Construction sequence to avoid interruption of services 11)Alternative energy This letter is provided to summarize and analyze these findings and to present a list ofissuesandpossibleoptionsforthecommunitytoconsider. 1)Status of Existing Community Fuel Storage Facilities The City of Tenakee Springs has recently purchased the community's only fuel storageandhandlingfacilityfromKadashanBayCorporation.None of the City owned fuelstorage,dispensing and bulk transfer facilities meet current code or regulation requirements.A complete list of deficiencies will be included in the Concept Design Report.The existing tanks are more than 50 years old and the associated pipingsystemsareinpoorconditionandwouldnottobecosteffectivetorenovate.AnenvironmentalsurveywasperformedonNovember11,2003 by Carson Dorn,Inc.The survey included a total of sixteen test holes dug in the vicinity of the tank farm to adepthrangingfromonetothreefeet.Field screening results revealed significant petroleum contamination in the tank farm area.Therefore it is our recommendation thattheexistingtanksbedrained,taken out of service,and abandoned in place to avoiddisruptionofthecontaminatedsiteandbereplacedwithnewtankslocatedonCity property. Tenakee Springs Bulk Fuel &Power System Upgrade -Preliminary Recommendations 2)Required Fuel Storage Capacity Tenakee Springs is located on a year round ice-free port with a deep water dock capable of receiving ocean-going barges.Fuel deliveries by barge are available from at least three different vendors and are scheduled to be in the area at least every two tothreeweeks.According to fuel delivery records,the community has averagedapproximatelysixbargedeliveriesperyear,spaced from 1 month to three monthsapart.At least one of the major fuel barge delivery services offers a $0.05 discount on fuel when the total quantity of all products delivered per trip exceeds 20,000 gallons.Based on this delivery schedule and price structure,we have opted to size the facility toholdanapproximatetwomonthssupplyofeachproductandtohavearound20,000 gallons of total available capacity per scheduled delivery with an adequate reservemargin.During peak fuel sales periods,such as commercial fish openings,additionaldeliveriescanbescheduledasrequired.The following table compares the currentannualand2monthuseforeachproducttotheproposednetuseabletankcapacityforthenewfacility: CONSUMPTION VERSUS CAPACITY Product |Peak Est.Peak |Proposed |%of Est.|%of ProposedAnnual|2 Month Net 2 Month Est.Gross Use in Use in Capacity |Use Annual _|Capacity inGallons|Gallons in Gallons Use Gallons (1)(2) Gasoline |28,000 10,000 18,900 189%68%21,000 #1 Diesel |43,000 10,000 18,000 180%42%20,000 #2 Diesel |73,000 13,500 18,000 133%25%20,000 Project Total 33,500 54,900 157%38%61,000 (1)Peak year,calendar years 2000 through 2003. (2)Net capacity (90%of gross shell capacity) 3)Location of Proposed Tank Farm and Power Plant The site for the new tank farm and power plant was selected by the City.In order toprovideasingletractlargeenoughforthenewfacilitiesare-plat will be required tovacateanexistingrightofwayandaddaportionoftheadjacenttownsitelandtotheexistingtankfarmproperty.The proposed new tank farm/power plant propertyboundaryshownonSheetM2islargeenoughtomeetallcode-required setbacks forthefuelstoragetanksandpowerplantmodule.The existing tank farm site will be left undisturbed during this project to avoid disruption of the petroleum contaminated soil. All new facilities will be located up the hill to the north of this area.Due to the steepslopeofthesiteandpotentiallyshallowdepthtobedrock,a series of three narrow benches are proposed for placement of the power plant module,diesel tanks and gasoline tanks.The power plant will be located on the lower bench to make it more accessible for daily monitoring and maintenance as well as for future engine/equipmentreplacement.A new set of access stairs will be constructed in the right of way. 4)Description of Proposed Fuel Storage and Handling Facility The proposed new tank farm will include two each 20,000 gallon bulk storage tanks, one for #1 and one for #2 diesel.There will also be one 15,000 gallon bulk storage tank for gasoline as well as a 6,000 gallon gasoline dispensing tank.The bulk storage tanks will all be horizontal skid-mounted double wall welded steel tanks.The gasolinedispensingtankwillbeahorizontalskid-mounted two hour fire rated tank.See sheetM3forproposedfacilitylayout. Page 2 of 4 Tenakee Springs Bulk Fuel &Power System Upgrade -Preliminary Recommendations Three new 3”diameter pipelines will be installed,one for gasoline,one for #1 diesel, and one for #2 diesel.The pipelines will be equipped with valves to allow them to serve as fill pipelines for barge deliveries and as distribution pipelines for dispensing and bulktransfers.The pipelines will be routed from the dock to the new City tank farm.A drip pan will be provided on the dock at the termination of the fill pipelines (marine header).All three new pipelines will have branch tees with isolation valves to the #1 and #2dieselmarinefuelingstationsandgasolinedispenseronthedock.The #1 and #2 diesel pipelines will also have branch tees with isolation valves to a truck loading hosestandlocatedacrossTenakeeavenuefromthedock.Secondary containment for the truck loading area will be truck-mounted.The bulk tanks will be top filled through strainers,check valves and fill limiting valves.Each tank will have a single top mountedsubmersiblepump.The #1 and #2 diesel bulk storage tank pumps as well as the gasoline dispensing tank pump will be piped directly into the appropriate fill/distributionpipelinewithisolationvalvesandcheckvalvesasrequiredforsupplyingthedieselmarinefuelingstationsandgasolinedispenser.The gasoline bulk storage tank pumpwillbepipeddirectlyintothetopofthegasolinedispensingtankthroughacheckvalve and fill limiting valve to allow fuel transfer between tanks. 5)Status of Existing Community Power Plant The property where the existing power plant building is located is owned by Kadashan Bay Corporation.The City does not have a long term lease that guarantees thecontinuedavailabilityofthislocationforcommunitypowergeneration.In addition,the existing generators,both of which are near the end of their useful life,are experiencingexcessivebearingwearfromenginevibrationduetotheinadequatesupportprovidedbytheexistingbuilding's wooden pile foundation.Based on the analysis of availabledataitappearsthattheexisting111kWratedgeneratorsareconsiderablyoversizedforthecommunityloads.Therefore it is our recommendation that the existing power plant be abandoned and replaced with a new power plant module with generators sized tomatchexistingcommunityloadsandtobelocatedonCityproperty. 6)Required Community Generation Capacity A power recording device was installed in the community power plant on 2/18/03 and removed on 6/6/04.According to the recorded data,daily peak generation loads rangebetween55kWto75kWanddailyminimumloadsrangebetween35kWand45kW.It is anticipated that loads will remain constant or grow slightly over the next ten years.Thenewproposednewsystemwillhavetwo88kWratedgeneratorsandonesmaller generator rated at 64kW.Any combination of generators will be able to be operated in parallel if required for an unusual peak load. 7)Description of Proposed Power Plant and Distribution Upgrades The proposed power plant will include two 88kW and one 64kW generators, programmable automatic paralleling switchgear,remote radiators with variable speed control,a fire suppression system,critical grade exhaust silencers,an automatic fill day tank,and a used oil blender,as well as all required engine coolant piping and ventilation equipment.It will come pre-assembled in a 14'-8"W X 36'-8"L modular skid-mounted building.Proposed power distribution upgrades include a new 100kVA step-uptransformerbankandupgradestoexistingoverheaddistribution.See Sheet E1 for distribution upgrades and Sheet E2 for power plant module details. 8)Beach Access and Project Staging Area There is limited beach access and working space in the proposed project area.Due to this,it may be necessary to clear the area between the existing power plant and theresidencedirectlytotheeastinordertomakeapathforbringingbarge-deliveredmaterialsandequipmentoffthebeach.It may also be necessary to temporarily remove some of the improvements that are currently located within the Tenakee Ave.right-of- Page 3 of 4 Tenakee Springs Bulk Fuel &Power System Upgrade -Preliminary Recommendations right-of-way to make room for staging tanks,equipment and supplies in this area.These improvements may include stairways and landscaping of private residences.See Sheet M2 for the proposed beach access and project staging area. 9)Local Sources of Gravel Every effort will be made to minimize the quantity of gravel required for this project duetothelackofalocalborrowsourceandthedifficultyofaccesstothesite.However it isestimatedthatapproximately350cubicyardsofgravelwillberequiredforpadconstruction.The only known local source of gravel is the beach area in the vicinity of the small boat harbor.According to local sources,DNR permits for mining gravel in thisareahavebeenissuedinthepast.The gravel would need to hauled through town in small trucks or dump trailers due to the narrowness and poor foundation of the road. Another option may be to barge the gravel in from Juneau or other remote location.The difficulty with this option would be finding a place to stockpile this much gravel in the project area. 10)Construction Sequence to Avoid Interruption of Services The existing stairway and above ground fuel pipelines will have to be demolished tomakeroomformovingequipmentandmaterialsupthehilltotheproposedtankfarmandpowerplantsite.In order accomplish this without disruption of fuel sales,temporary above ground pipelines will need to be routed from the existing tank farm inanareaclearoftheconstructionactivity.The temporary pipelines can run below gradeasrequiredforconnectiontotheexistingburiedpipelinesandforprotectionintheconstructionareaattheroadcrossing.Other than this,there should be minimalimpactsonexistingfuelservicesorcommunitypowerdistributionduringconstruction. 11)Alternative Energy There are no identified facilities,such as a school or public building,within a practicaldistanceoftheproposedpowerplantlocationthatcouldbenefitfromrecoveredengineheat;therefore,no heat recovery equipment is proposed for the power plant module.There will be adequate space for future installation of heat recovery equipment in themoduleshouldaneedfortheheatarise. All available data regarding the potential hydroelectric project,including informationgatheredonourJune8,2003 site visit,has been forwarded to a hydroelectricgenerationspecialistforreview.The potential impact of the Indian River fish ladderinstallationandsalmonenhancementprojectonhydroelectricfeasibilitywillbeanalyzed.The cost estimates for the original Corps of Engineers Design and PolarConsultalternativeswillalsobereviewed.The conclusions of this review will be included in the Concept Design Report.No other potential alternative energy projectshavebeenidentifiedforTenakeeSprings. Copies of this report have been sent via e-mail to Bill Eberhardt and John Weisenbaugh.Please provide copies to Ken Wheeler,Robbie Walters,and other interested residents.Please review the issues presented,discuss with the local operators,and call me at 336-8031 to discuss or fax your comments to 336-7527.InordertokeeptheprojectonscheduleweneedtoreceiveallcommunitycommentsnolaterthanJuly15,2004.|look forward to working with you on this project. Sincerely, Alaska Energy and Engineering,Inc.pMelebr,brJohnDickers6n Project Engineer Page 4 of 4 PORTION OF CHICHAGOF AVE. R.O.W.TO BE ABANDONED EXISTING FUEL TANKS TO BE TAKEN OUT OF SERVICE M.S.R.No4 EXISTING STAIRS TO ,4 - BE DEMOLISHED \|GYY CHICHAGOF AVE.|.--_-_\J f é L --- Lot 7 i |\Lot 7 |LOT 6 |tots |Lor 4 | EXISTING TA !COOO 1 | FUEL 77 7"7725 rN -J -ol ----- PIPELINES |Lor 4 lor 5 3 Ma || TO BE ft DEMOLISHED Tj 7]MSR.No3}LoT 1]tor2 |Lor3 ae)a |Lt.LEXISTINGTRUCK/aiLOADINGHOSE°i °C ° STAND,STEP-UP =/-----wewwwy_TENAKEE AVE __TRANSFORMER |BANK,AND OLD "Teron Ul OTH Cor 7]!Lost or sit POWER PLANT |||BUILOING TO BE -r--+4.---- DEMOLISHED.| EXISTING 300 GAL.I ! POWER PLANT EXISTING _|TANK AND BURIED FUEL ----_" DAY TANK SUPPLY !PIPELINES -t EXISTING POWER PLANT PIPELINE TO BE TO BE 1 TO BE ABANDONED TAKEN OUT OF DEMOLISHEDSERVICE 'AK TIDELANDS SURVEY No524 /N TENAKEE (EXISTING €INLET DISPENSERS/tAND MARINEHEADERTO BE 'DEMOLISHED Lo , PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE {omwwer:JID |SCE 1”=80"com statof Magke cosANDPOWERSYSTEMUPGRADEoesienedey:BCG DATE:7/02/04 Hye Deparugent of AIDEA/AEA P ALE WME SHEET oy.NG a furel Energy Group yee ALASKAEXISTINGSITE/DEMOLITION PLAN Tena-cor-mi |M 4 aes et Nortrer ae Entel ADTHONITY PROPOSED CITY TANK FARM/POWER PLANT PROPERTY AND EXTENDED CHICHAGOF AVE.R.O.W.BOUNDARIES | NEW ACCESS STAIRS |NEW CITY TANK | !IFARM &POWER NEW STAIR MOUNTED 3”'PLANT -SEECASOLINE&#1/#2 fp F-SHEET M3.FOR DIESEL BARGE ENLARGED !FILL/DISTRIBUTION |SITE/GRADING PLANPIPELINES&ELECTRICAL ,Cd LeeCONDUITrf]!| linen ee Ls -t -|C ''|1 1 '_|t ] '|[|COCO |Len|oO ||7 V -i H i Ti |P|[|flJil|."oe orPROJECTey__-sdee)°'TENAKEE AVE.STAGING AND <==i,rs A iBEACHACCESS|i rH il |AREA |of tly J \|IAWE A ie A jaiNEWTRUCKtEXISTING POWERLOADINGHOSE'POLE,TYPSTAND.IN |7”8x8'[NEW 3”SECURITY ' GASOLINE &ENCLOSURE '#1/#2 DIESEL BARGE !FILL/DISTRIBUTION 'PIPELINES AND ELECTRICAL 'CONDUIT UNDER DOCK NTJ NEW GASOLINE - 'DISPENSER, #1/#2 DIESEL |BULK TRANSFER &|_||MARINE HEADER |_|wo 1”=80° PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE [orev JTD SOME:1"=80!a 0 AND POWER SYSTEM UPGRADE Tenen 6°BOO |ome 7/02/00 nme of CommiondESnamie DeionmenrEWiserOF|SM Suc eee Gon,FE ALASICANEWSITE/PROPERTY PLAN TENA-CDR-M2 M2 «*'Anchorage,Aska 99503 em ENERGY AUTHORITY PROPOSED CITY TANK 3)el 100'_FARM/POWER PLANTs=T_0 ; PROPERTY BOUNDARY ee TTT ST APPROXIMATE EXISTING |”I noes,wo free GROUND CONTOUR 1.VERTICAL DATUM BASEDsnDeaTRONTOPOFFERRYBEDOCK=99,22" ss een rnaary 46 Oar ee 2.GROUND CONTOURfNoreeeeordoorNAeeELEVATIONSSHOWN Wo Nee ee SSN PE ARE APPROXIMATE DUE i)al TT CE)TO INCOMPLETE DATA.|ee a ee in.2 er en ee(- Z 77>>44 __L1SK=CAL._GASOLIN Nev pee .EXCAVATE EACH BENCH a -eee TO REMOVE ORGANIC7/ASOLINE TANRE TANK=3 PS SQ +MATERIAL.CUT/FILL.TP ABENCH EC 4_\|6K GAL GAS.DISP>F OS YT EXISTING MATERIAL AS4/160"==a ae REQUIRED.FINALffe=ee 4 ee ee MINIMUM 1°DEEP oe Jo Xt t=ny aed ee LAYER TO BE 2”weet ie es ALES MINUS BEACH GRAVEL. a eee LS qeo TR ane 20>SL --47.tea >4 -[20K GALLFI-DIESELT YN |./oesertanK>y_[tank F2224/BENCHWEL.No oa.#2 DIESEL) - 2 \J 4-__q ™ t50 7 |-PTE =----=<A._Ty = J__Toe y-- >ee TT TT -_]- 4 .ee ee b-"J> FILTTA \- =47 2]-7 TTT+ _{----),,4 <|--|_----[-POWER PLANT.74>qo-Tro ___H-a._/POWER PLANT.7=- V----Mopure.=AL EAE-94BENGHEL.ref)_-7 --Le4450™ae ae ”ne,ei --eo oo oT 4-lit+-liacferrrir iris lc ere+o a ee ee ee _o om -JO7 sl Dt ee te a ---Dee \ 4a LT Te DUS TTL ee a Tor ee Les22pillipcdi5ie>>--lt>+lDb ---------- SLILliITl--!"7 -__-OoOoOo -O---__-jit tid Sra ==| Se --TOT ee _oeUrsllttslliyeecrrrrrettre_-N ! t-- . .i a 7 a"OT oe eee LLee- -jp a"TOeeOe aN EXISTING TANKS TO en oa BE ABANDONED -€&-t._ws < _N,|Ln [._Le >N ;[oy an)WW .2 oss an 130'=se --jaieaoo ! __ x=Oz PROECT:TENAKEE SPRINGS BULK FUEL STORAGE [wer JTD_|swe:1°=25'ant of Comet%,AlokaANDPOWERSYSTEMUPGRADEvesenenoFBCG|owe 7/02/04 Pt we DePertgent of Community and Economie Development*a OE AEATRETANKFARM&POWER PLANT AREA FE Nae SHEET OF AED Ee See,PBALASKASITE/GRADING PLAN TENA-coR-M3 |M4 3 fecnorage ae |t ' |! I | N ar |toSPS3 1”=40'NOTES:!1)APPROXIMATELY 1,200'OF EXISTING |in ateSINGLEPHASEOVERHEAD1 DISTRIBUTION TO BE UPGRADED TO 3-PHASE FOR CONNECTION TO ;NEW ; EXISTING BURIED 3-PHASE WIRED POWEREXTENSIONONWESTENDOFTOWN.|PLANTJ==)==am 2 a =--MODULE,27+ |SEE SHEET £2 | ] NEW STAIR -MOUNTED (\CONDUIT FOR ICOMMUNITY1 QOOO FEEDER PG ||| | NEW PAD ||MOUNT ------100kVA | STEP UP |TRANSFORMER | | BANK |H } '''{]t ie ee Se Lf ||jf jy}|f. UPGRADE EXISTING EXISTING + OVERHEAD DISTRIBUTION @ POWER \le e BETWEEN POLES W13 AND POLE,TYP : --W18 -SEE NOTE 1.\-NEW BURIED CONDUIT FOR CONNECTION7cTO.EXISTING OVERHEAD DISTRIBUTION_; PROJECT:TENAKEE SPRINGS BULK FUEL STORAGE [om sr JTO SCE:1”=40"State of Ala AND POWER SYSTEM UPGRADE vesene or BCG |ome:7/02/04 [Ra OParepent of Communy are 'Eeomic Development TIME:FILE NAME SHEET OF ay.NG aural Ene SrpPOWERDISTRIBUTIONUPGRADESTENA coR-Et |ar 90503 =ALA@mENERGYAUTHORITY \/\Yo NZ NO7 x x aN 4N Yo \yo \Y 0 OSs Sw co)Ko =[a Ro |pr 3,YP ;|GEN#1 88kW o >Re 72 yo GEN#2 88kW ><||Pee=2 GENERATION 5 ROOM -(a i )VEDGENPS64kW|PANEL Oo a PANEL-=[ Ay SS-1 man}STATION SERVICE ---- TRANSFORMER HOPPER |BLENDER -O FIRE SUPPRESSION AGENT CYLINDER CONTROL ROOM GEN GEN GEN |pistR#3 |#2 #1 O Qo --2 o en eed ee ee ee..ie .an P m new ==a +en axurl ety es Bivd.le ALASKPOWERPLANTMODULEPLANTENA-CDR-E2 F2 **probiting (am ENERGY AUTHORITY .fyEa t hiae \ sy r \ea !City of Tenakee SpringsorPeOeTO papas RESOLUTION 2004-25 Inthe Council "U4 Introduced by theMarch25,2004 'Council President A RESOLUTION OF THE CITY OF TENAKEE SPRINGS ON BEHALF OF THE CITIZENS OF TENAKLE SPRINGS TO SEEK GRANT FUNDING TO BRING INTO REGULATORY COMPLIANCE THE CITY POWER PLANT AND BULK FUEL FACILI THES INOUR COMMUNITY BE IT ENACTED BY THE CITY OF TENAKEE SPRINGS COUNCIL AS FOLLOWS: WHEREAS,the City of Tenakee Springs is a municipality and political subdivision of the State of Alaska, organized in accordance with the laws of the State of Alaska;and WHEREAS,Tenakee Springs wishes to secure grant funding for project implementation for a new power plant and replacement of the bulk fuel facility located in our community;and WHEREAS,in order to best meet site control requirements for a power plant and bulk fuel storage project ilisnecessarytosecurecertaininterestsinland;and WHEREAS,'The Council has reviewed the proposed site plan dated March 24,2004,prepared by the Alaska {nergy Authority,and depicting the approximate location of the project area;and WHEREAS,the Council believes the project and the public interest would be served by vacating a portion of Chichagof Avenue and subdividing a portion of adjacent unsubdivided USS 1418 municipal watershed reserve for the power plant and tank farm project;ind WHEREAS;-the Council will appoint its designee for the duration of the project and that person will be the contact person representing Tenakee Springs. NOW,THEREFORE,be it resolved that 1,'Tenakee Springs approves the proposed site power plait and tank farm site selection as described in the proposed site plan prepared by the Alaska [inergy Authority.- 2.The Mayor,or her designee,is hereby authorized and directed to execule or prepare lor Council adoption,all subsequent documents to vacate rigits of way,subdivide land,providesitecontrolandothernecessarydocumentstofurtherthepowerplantandtankfarmproject. BEIT FURTHER RESOLVED that this resolution shall be cffective immediately upon adoption. ADOPTED _4 ayes,3 absent THIS 22"DAY OF April 2004 ay l¢dL,r be £6)NShellyP.Wilson City Council President ex officio MAYOR AYTEST: Le a a Clerk Alaska Enersy and Engineering,Inc.Mailing Address -P.O.Box 111405 Anchorage,AK 99511-1405 -(9 i]349-0100Fax(907)349-8001 March 25,2004 The Honorable Shelly Wilson,Mayor _Sent via fax to:907-736-2207cityofTenakeeSprings(4 pages total)&via email Ox Tenakee Springs,AK 99841 Re:Tenakee Springs Bulk Fuel and Power Plant -Site Contro!Resolution Dear Mayor Wilson: Please find attached a draft proposed site plan for the tank farm and power plant project.Also attached is a draft resolution for the City Council's review,edit,and approvaladdressingsitecontrol,funding request,and appointing a project designee. |am presently in New Mexico for my sons USASA Nationals.If you have any questions,please call me on my cell phone at 907-244-0155. |have also emailed these documents to John Wisenbaugh and Bill Eberhardt. We look forward to working with you and the community of Tenakee Springs on thisproject.If you have any questions please call (907)349-0100,or fax to (907)349-8001. fit Inc.Project Engineer a cc:David Lockard,AEA/Rural Energy Group Sincerely, Alas 4Offo7 LO a WaaJL,A / PROPOSED CHICHAGOF AVE” "ROW NEW”SIG)"ia PROPOSED TANK FARM/POWER PLANT PROPERTY = M.S.R.No4 SUR.No 1409 PORTION OF. "CHICHAGOF AVE TO BE VACATED CHICHAGOF AVE. IS NN NN Ne'LOT 7 LOT 6 LOT 5 LOT 4 N .S @ M.S.R.No3 SUR.No 1409 LoT 1 LOT 2 LOT 3 Tok TENAKEE AVE.Lt |-__}Edu |1 LJ PROJECT:TENAKEE SPRINGS POWER PLANT AND BULK FUEL UPGRADE TITLE: PROPERTY PLAN oRAWN BY:SUS FILE NAME SHEET OFSCALE:1°=60" DESIGNED By:SUS SH1ate:3-24-04 |PROP PLAN *,AIDEA/AEAABRuralEnergyGroup813WestNorthernLightsBivd. State of AlaskaDeporyentofCommunityandEconomic Development f=ALASKAfit5westNorthernLightsBlvd.Wf quam ENERGY AUTHORITY CITY COUNCIL RESOLUTION NO A RESOLUTION OF THE CITY OF TENAKEE SPRINGS ON BEHALF OF THE CITIZENS OF TENAKEE SPRINGS,AK TO SEEK GRANT FUNDING TO BRING INTO REGULATORY COMPLIANCE THE CITY POWER PLANT AND BULK FUEL FACILITIES IN OUR COMMUNITY. WHEREAS,the City of Tenakee Springs (hereinafter as CITY)is the municipal corporation for the City of Tenakee Springs,having incorporated and organized in accordance with the laws of the State of Alaska;and WHEREAS,the CITY wishes to secure grant funding for project implementation for a new power plant and to replace the bulk fuel facility located in Tenakee Springs,AK, and; WHEREAS,the CITY needs to secure an interest in land in order to meet site control requirements for a power plant and bulk fuel storage project;and WHEREAS,the CITY has reviewed the proposed site plan depicting the approximate location of the project area; WHEREAS,the CITY believes the best interests of the CITY would be served by vacating a portion of Chichagof Avenue and su!.Jividing a portion of adjacent unsubdivided USS 1418 municipal watershed reserve for the power plant and tank farm project; WHEREAS,the CITY will appoint their designee for the duration of the project and that person will be the contact person representing the CITY,therefore; X IT IS NOW RESOLVED by the CITY that it approves the proposed site power plant and tank farm site selection,and that said resolution is hereby approved. BE IT FURTHER RESOLVED that the Mayor,or her designee,is hereby authorized and empowered to execute subsequent documents to provide site control and other necessary documents to further the power plant and tank farm project. ADOPTED AND DATED this __day of ,2004,at Tenakee Springs,Alaska. ATTEST: by:by: City Clerk its 'CERTIFICATE The Undersigned,,City Clerk of the City of Tenakee Springs does hereby certify that at a meeting of the City Council of said Tenakee Springs duly called and held on the day of ,2004 at which a quorum was at all times present and voting,the foregoing resolution was duly adopted. Dated this _day of ,2004,at ,Alaska. City Clerk (2004 Lstle 9877362287 TENAKEE SPRINGS AK "CITY OF TENAKEHE SPRINGSfone4Fez7-736-22075Hoy_i PAGE 91 wy /,.icheraonm Gv 7 -336 -7527 wee bee LUM tgelid JU /362207 TENAKEE SPRINGS AK LABOR }POOL LIST A Sloop +-2222MarcusBrooker Dan Kennedy Scott Wilson '|Roger Lewis Elizabeth,Shaw |Don Odenheimer JC Tomas Rob Walters John Wisenbaugh , Dale Ziel 36-430 (message)Beret BarnesPaulScniber Randy Burbridge Brooke Elpe Wendy Stern 'Terry Kennedy Ken Wheeler . Darren fggAra 73br | H 5,2003;anyone who wants toUpdatedLab}ool List:Thisattendisgood until January#@ to the City Office by 1/12/04.remain on the list will have to call-in (or mail their reque to the job assignments.Directions for Ts is No response to the announcementrentlististheoneintheCityOffice. Announcements of Labor Pool Jobs will be posted at least 24 hours pricd*responding to the call for labor poo]work will be in the announcement.Ifaanyoneonthelistcanbehiredtogetdiejobdone,Keep in mind that the People may be added to the list at any ime by contacting the city offic The City of Tenakee Springs Is an equal opportunlty emptoyer and affords equagppportunity to all persons regardless af race,color,sox,religion,tamtly status,age or national origin,| Updated 11/26/03 LABOR POOL.WPD PAGE @2 B8/11/2804 13:12 9877362207 TENAKEE SPRINGS AK 3/4 /o¥:_ ' PAGE a3 07/307 2004 Q5:27 |907-998-7527 AESE -PAGE 81/01 .'rr fou LK Ful LA | POWHR UPGRADE PROV , LOCAL LABOR P@OL ECT emamen 2 O05”P):},é ° ot . :o WY»ro ogcS2,=>eefaySU/SFS/EELFE, Ay Yate A er Alaska Energy and Engineering,Inc.Mailing Address -P.O.Box 111405 Anc orage AK 99511-1405(9 7},349-0100Fax(907)349-8001 June 7,2004 The Honorable Shelly Wilson,Mayor Sent via fax to:907-736-2207 City of Tenakee Springs (1 page total)PO Box 52 Tenakee Springs,AK 99841 Re:Tenakee Springs Bulk Fuel and Power Plant - Geotechnical Site Investigation,June 8,2004 -Second Attempt Dear Mayor Wilson: As we discussed late last Friday,John Dickerson of Alaska Energy &EngineeringandAllanMurfitt(Geotechnical Engineer)will be traveling to Tenakee Springs onTuesday,June 8,2004 to perform a soils/foundation investigation at the proposedpowerplantandtankfarmsite,and to visit the proposed hydroelectric facility siteatIndianRiver.Weather permitting,they should arrive about 11:00 am TuesdayonAlaskaSeaplanesandplantodepartby6:00 p.m.the same day. Also,as we discussed,please arrange for local labor (3 to 4 people)to assist withdiggingthetestholes.Should John and Allan be delayed in completing theirwork,or should weather cancel their return flight to Juneau,they may requireovernightlodgingaccommodations.They will bring sleeping bags,just in case. We look forward to working with you and the community of Tenakee Springs onthecontinueddevelopmentofthisproject.If you have any questions please call (907)349-0100,or fax to (907)349-8001. Sincerely, Alaska;Energyand Engineering,7 ee Wy,A _Steven J.Stasse Project Engimeer cc:Bill Eberhardt,907-736-2207 fax John Wisenbaugh,907-736-2207 faxDavidLockard,AEA/Rural Energy Group,269-3044 fax *Alaska Energy and Engineering,Inc.,Mailing Address -P.O.Box 111405Anchorage,AK 99511-1405(9 7),3490100Fax(907)349-8001 May 23,2004 The Honorable Shelly Wilson,Mayor Sent via fax to:907-736-2207CityofTenakeeSprings(1 page total)PO Box 52 Tenakee Springs,AK 99841 Re:Tenakee Springs Bulk Fuel and Power Plant-Geotechnical Site Investigation,May 26 &27,2004 Dear Mayor Wilson: David Lockard of the Alaska Energy Authority/Rural Energy Group and|will be traveling toTenakeeSpringswithAllanMurfitt(Geotechnical Engineer)on Wednesday,May 26,2004toperformasoils/foundation investigation at the proposed power plant and tank farm site.We intend to arrive early in the morning on May 26th,and depart by noon on the 27". |understand the soils at the site generally consist of a layer (possibly 3'to 5')of organicsoverbedrock.We will need to dig between 2 and 4 test holes to bedrock in the vicinity oftheproposedpowerplantandtankfarmlocations.Due to the difficulty of getting a smallbackhoetothesite,|envision the holes will need to be dug by hand.Please arrange forsomelocallabortoassistuswithdiggingthetestholes. Should time permit,we also hope to make a brief visit to the proposed Indian Riverhydroelectricsite. We look forward to working with you and the community of Tenakee Springs on this -project.If you have any questions please call (907)349-0100,or fax to (907)349-8001. Sincerely, Alaska ineering,inc.gy4n &.olaProjectEnginéer CC:Bill Eberhardt,907-736-2207 fax John Wisenbaugh,907-736-2207 fax David Lockard,AEA/Rural Energy Group,269-3044 fax Alaska Energy and Engineering,Inc.Mailing Address -P.O.Box 111405Anchorage,AK 99511-1405(907)349-0100Fax(907)349-8001 January 26,2004 The Honorable Shelly Wilson,Mayor Sent via fax to:907-736-2207cityofTenakeeSprings(3 pages total) OX Tenakee Springs,AK 99841 Re:Tenakee Springs Bulk Fuel and Power Plant -Site Investigation Dear Mayor Wilson: Alaska Energy and Engineering has been selected to prepare the preliminary designreportfortheproposedbulkfuelandpowerplantprojectinyourcommunity.The scope ofthereportwillincludecodecompliantfuelstorageand_handling facilities,upgradedirelocated power plant with heat recovery capability,and a review of existinghydroelectricpowerstudies.David Lockard of the Alaska Energy Authority/Rural EnergyGroupand|will be traveling to Tenakee Springs on Wednesday,February 18,2004 toinspectexistingfacilities,collect site data,and discuss the project,,We intend to arriveearlyinthemorningonFebruary18th,and depart by noon on the 19°. In order to make our visit as productive as possible we need the most current andcompleteinformationavailableregardingthefollowingitems: 1.3-years of annual fuel use records for all community facilities,including power plant,public buildings,community center,fire hall,and any heavy equipment operation.Annual fuel use by facility information is the most helpful,if available. 2.Estimated total annual residential fuel imports,if any,of all fuel types from all sources. _3.Local sources of gravel or other fill material including type of fill available,owner,location,method of hauling,seasonal restrictions,etc. 4.Planned projects that may affect fuel consumption such as additional housing,waterandsewerexpansion,school addition,new community facilities,etc. 5.Status of local labor pool (please fill out attached list). 6.A list of locally available heavy equipment and information regarding condition (pleasefilloutattachedlist). 7.Updated information on land ownership and land status that differs from what has beenpreviouslyreportedintheCorpsofEngineersandPolarConsultfeasibilitystudies. We look forward to working with you and the community of Tenakee Springs on thisproject.If you have any questions please call (907)349-0100,or fax to (907)349-8001. Sincerely, cc:|Connie Newman,CSSD,907-788-3252 faxDavidLockard,AEA/Rural Energy Group TENAKEE SPRINGS FUEL AND POWER UPGRADE PROJECT LOCAL LABOR POOL &[8 Q o YW\")s eS}y Seo &1S /ES/O S/o >SY Lo £Fo/9 <ESS s/E&/EoL/GExzc/Af/S CES OG/SS/eS SsS/SF/e E/E E/ES/ERES/SE¢w @ o/.¢Name P/E /L S/SE/T L/S CO/LS 1)With Current AP]Welding Certificate 2)With Current Certificate of Fitness 1/26/2004 TENAKEE SPRINGS FUEL AND POWER UPGRADE PROJECT LOCALLY AVAILABLE EQUIPMENT LIST ATTACHMENTS -' .CAPACITY |(BACK-HOE,FORKS,CONDITION, OWNER MAKE MODEL |YEAR |(YDS,TONS)AUGER,ETC..)COMMENTS DUMP TRUCKS DOZERS LOADERS TRACK HOES (EXCAVATORS) SKID-STEERS (BOBCATS) CRANES _Alaska Energy and Engineering,Inc.Mailing Address -P.O:Box 111405 Anchorage,AK 99511-1405(907)349-0100Fax(907)349-8001 January 26,2004 Ms.Connie Newman os Sent via fax to:907-788-3252 Chatham Straits School District (2 pages total)PO Box 109 Angoon,AK 99820 Re:Tenakee Springs Bulk Fuel and Power Plant -Site Investigation Dear Ms.Newman: Attached please find attached a site visit notification letter sent to the City of TenakeeSpringsregardingaproposedbulkfuelandpowergenerationheatrecoveryproject.Wedonotanticipatetheschooltobeinvolvedinthebulkfuelstorageportionoftheproject;however,we will be investigating the viability of installing heat recovery equipment in theroposedCitypowerplantanddeliveringtherecoveredheattotheschool.We invite theistrict's input on the project. In order to make our visit as productive as possible we need the most current andcompleteinformationavailableregardingthefollowingitems: 1.3-years of annual fuel use records for all school facilities in Tenakee Springs.Annualfuelusebyfacilityisthemostuseful,if available. 2.Planned projects that may affect fuel consumption such as school addition,newfacilities,etc. We look forward to working with the Chatham Straits School District and the community ofTenakeeSpringsonthisproject.If you have any questions please call (907)349-0100,orfaxto(907)349-8001. nd ineering,Inc. cc:Connie Newman,CSSD,907-788-3252 fax Sincerely, **x*@ re ALASKA INDUSTRIAL DEVELOPMENT «>4)pS AND EXPORT AUTHORITY ==ALASKA "mE ENERGY AUTHORITY xk *& 813 WEST NORTHERN LIGHTS BLVD.ANCHORAGE,ALASKA 99503 907/269-3000 FAX 907 /269-3044 November 7,2003 The Honorable Shelly Wilson,MayorcityofTenakeeSpringsP.O.Box 52 |Tenakee Springs,AK 99841 Re:Tenakee Springs Fuel and Generation Project -Concept Design Mayor Wilson: Thank you for meeting,with me and Steve Stassel of Alaska Energy and Engineering(AE&E)on October 6”to discuss Tenakee Springs'energy needs.Attached is asummaryreportoftheinformationobtainedregardingtheexistingCitypowerplantand-distribution system,Kadashan Bay Corporation fuel facilities,as well as potentialenergyrelatedprojectsidentifiedbythecommunity. The purpose of our initial site visit was to meet with the City Council and interestedcommunitymembers,obtain on-site data,and evaluate the energy-related needs of thecommunity.We identified several potential projects,including power plant and tankfarmrenovation/relocation,electric distribution system improvements,as well asalternativeenergyprojectssuchasheatrecoveryfromthepowerplant,hydroelectricity,and geothermal energy recovery. The next step in the process is to prepare a Concept Design Report (CDR)to define thescopeandestimatedcostoftheproject.Steve Stassel will write the CDR,withoversightfrommyofficeandinputfromtheCityCouncilandotherresidents.Currently,funding is only available for the Concept Design Report.Once the CDR has beencompletedandapprovedbytheCouncil,the Energy Authority will work with the Counciltodevelopabusinessplanandseekfinaldesignandconstructionfunding. Steve Stassel is planning a follow-up site visit to Tenakee in late January or earlyFebruarytoobtainadditionalinformationnecessarytocompletetheCDR.Prior tothen,he will examine historic fuel use and delivery data to establish the required tankfarmcapacityanddevelopoptionsforthefacilitylayout. If you have any questions,please call me_at 907-269-4541,or 888-300-8534 toll free.|look forward to working with you and the Council on this project. David Lockard AEA Project Manager Enclosure as stated cc:Connie Newman,Superintendent,Chatham School District (w/enclosure)Bob Pegeus,Kadashan Bay Corporation (w/enclosure)Steven Stassel,AE&E (w/enclosure) ALASKA ENERGY AND ENGINEERING,INC. TENAKEE SPRINGS 10/6&7/03 TRIP REPORT TO:David Lockard,AEA Project Manager FROM:Steven J.Stassel,P.E.(AE&E) SUBJECT:Trip Report for S.E.Alaska CDR Trip of 10/6&7/03 On October 6th &7th,2003 Steve Stassel of Alaska Energy &Engineering,Inc.and David Lockard of the Alaska Energy Authority (AEA)traveled to Tenakee Springs to meet with local officials and interested community residents to discuss potential energy infrastructure projects,provide information regarding the AEA programs,and to obtain reconnaissance level information to identify community energy-related needs. Prior to the site visit,available Power Cost Equalization (PCE),power plant,and AEA Bulk Fuel Assessment information was obtained from AEA.Aerial photos and community profile data were also acquired.Electric generation fuel efficiencies and estimates of available recovered heat were calculated for Tenakee. Tenakee Springs:10/6&7/2003 (arrive at noon,departed 8:45 a.m.) We were met at the floatplane dock by Bob Pegeus of the Kadashan Bay Corporation (KBC).Mr.Pegeus provided a brief tour and explanation of the KBC fuel storage and handling facilities.We then met with Shelly Wilson (Mayor)and John Wisenbaugh (Council member)to discuss the purpose of our visit and to obtain information.Later, Bob Pegeus provided access to the city power plant and provided a history of thefacility.Afterward,we toured the harbor and then met with Amie Strong (Lead Teacher) to explain our visit and to briefly review the school facility. A Town meeting was held at 7:00 p.m.The meeting was attended by about 15 people, including several City council members,Bob Pegeus,and John Corso (City attomey). Tuesday morning was spent investigating possible tank farm and power plant sites above the existing TDC tank farm,at the teacherage,and at the school.We departed Tenakee Springs for Port Alexander at 8:45 a.m. Significant Contacts: Shelly Wilson -(736-2216-hm)Mayor and Health AideBillEberhardt-(736-2216)Vice Mayor (was out of town)Bob Pegeus-Kadashan Bay Corp.,fuel manager/operator,USCG PICJohnWisenbaugh-(736-2207)Utility ManagerMaryAlmy-(736-2207)City ClerkRobbieWalters-Powerhouse operator,fuel truck operatorRogerLewis-Council MemberDanKennedy-Council MemberJohnCorso-(586-3340)City Attorney (based in Juneau)Dave Miller --Juneau Civil Eng and local resident (Elfin Cove TF design)Connie Newman -(788-3302)Superintendent (CSSD) Arnie Strong -Lead Teacher H:\Rural Energy Group (REG)\AEA Bulk Fuel Upgrade (BFU)\Projects Funded\TFENAKEE\Reports\Tenakee 10-6-03 triprpt-di.doc Page !of 4 ALASKA ENERGY AND ENGINEERING,INC. TENAKEE SPRINGS 10/6&7/03 TRIP REPORT The following outlines the information that was obtained during the site visit: Power Plant:(refer to AEA RPSU 1/01 report): The power plant is located in a wood frame /wood floor structure supported on woodpiles on the beachfront.Two 3304B Caterpillar gensets (each rated at 111 kW) provide power to the community.A SimpIx SST 150B auto-fill daytank (6+/-years old) with overfill protection provides fuel to the gensets from a 500 gallon intermediate tank across the street. Notes: e The gensets are at or near the end of their useful life (unit #1=61,303 hours,unit #2=44,200hours),and spare parts are reportedly no longer manufactured by Caterpillar. e The gensets have skid mounted radiators.No heat recovery system. e Unit #2 had a major overhaul September 2003. e The two gensets appear to be oversized for the community load (additional load data is required). e The NC Machinery mechanic has informed the city the offline genset is experiencing excessive bearing wear caused by vibration from the online genset -due to an inadequate woodpile foundation. e The City owns the power plant structure and generation equipment,but the property is owned by KBC.KBC has informed the City it is selling its assets, including the power plant property.The availability of the property for continued use as a power plant is unknown. e The power plant may not be located above the 100-year flood plain Electric Distribution System: Electricity is generated at 208V 3PH,stepped-up via a 3-phase transformer,and distributed at 7.2/12.47 kVA.A 3-phase overhead distribution system constructed in 1982 provides power to the community core (about 4,500 lineal feet).A 7200V overhead single-phase distribution extends approximately 1,200 feet east of the 3- phase distribution system,and provides power to the harbor.A 7200V below grade single-phase distribution line constructed in 1993 reportedly extends approximately three-quarters of a mile west of the 3-phase distribution system,and provides power to a few residences. Notes: e The load was not balanced (A=140A,B=204A,C=220A). e At5:00 p.m.,Real power =55 kW,Reactive power =10 kVAR e John Wisenbaugh reported that occasionally,the load momentarily becomes unstable (300+Amps)causing the genset to slow -prior to recovering (possibly H:\Rural Energy Group (REG)\AEA Bulk Fuel Upgrade (BFU)\Projects Funded\TENAKEE\Reports\Tenakee 10-6-03 triprpt-dl.doc Page 2 of 4 ALASKA ENERGY AND ENGINEERING,INC. TENAKEE SPRINGS 10/6&7/03 TRIP REPORT due to power factor/capacitance issues with the long,lightly loaded underground 1-phase service to the west of the city core) Tom Neubauer designed 1993 distribution system.Bob Pegeus reportedly knows some of the system specifics.City hired electrical engineer (Schaffer?)in 1982.(Availability of design or record drawings is unknown) Kadashan Bay Corporation Fuel Facilities (refer to AEA BF Assessment 9/96 report): KBC owns the only fuel storage and handling facility in the community.Bob Pegeus has informed the city that the prospective buyer of KBC has decided not to accept any interest in the existing fuel storage and handling facilities.KBC has offered the facilities, including fuel tanks,fill/distribution piping,fuel dispensing system,and the 2 lots the tank farm are located on for "$10 and other consideration”.KBC has requested that the City provide its decision by December 1,2003.The City has formed a Tank Farm committee to explore its options and has hired an environmental firm to perform a phase |level environmental investigation of the tank farm site. Notes: Fuel is delivered by barge normally twice a month during summer and once a month during winter by Petro Marine. The fuel facility is old (1950's vintage fuel tanks,site is older)and not code compliant. Status of site contamination is not known. Tank farm has no secondary containment or security fencing.Tank bottoms rest on heavy timber pads at grade/partially sunk below grade. The site is located on a steep heavily forested hillside,about 31'above the dock. Access to the tank farm is limited to a wooden stairway Water flows through the tank farm (probably almost constantly)either from runoff from the hillside,or possibly from a spring (or springs)within the tank farm. #1 and #2 diesel and unleaded gasoline is stored and dispensed from the facility. The fill/distribution piping has been recently upgraded.All piping below the dock appears to be welded and wrapped 2”steel piping.Piping routed up the hill adjacent to the stairway to the tank farm is a combination of welded and threaded 2”steel pipe. All fuel dispensing and bulk transfers are by gravity. #1 and #2 diesel is transferred into a portable tank in a pickup truck for home delivery.Bulk transfers of #1 and #2 diesel are conducted on the dock,and gasoline is dispensed from the dock. H:\Rural Energy Group (REG)\AEA Bulk Fuel Upgrade (BFU)\Projects Funded\TENAKEE\Reports\Tenakee 10-6-03 triprpt-dl.doc Page 3 of 4 ALASKA ENERGY AND ENGINEERING,INC. TENAKEE SPRINGS 10/6&7/03 TRIP REPORT Community Interests Hydroelectric: Hydroelectric feasibility studies were performed by the Corps of Engineers in 1984 and PolarConsult in 1993.The COE study provided an estimated construction cost of approximately $3.5 million.The PolarConsult study resulted in a construction cost of approximately $700,000.The community is interested in further investigating hydroelectric feasibility. Power Plant /Tank Farm Upqrade: The community is interested in further investigating relocating the power plant and tank farm,possibly near the school to provide waste heat to the school,and locating the power plant out of the flood/storm-surge stage on property for which the city has long term site control.The school district has reportedly offered the teacherage site to the City. Dave Miller Engineering in Juneau drilled the school well in the mid-80's and about 17 residential wells circa 1998/9. Geothermal: The community has expressed an interest in geothermal energy.Limited available data indicates the existing hot spring does not provide adequate thermal energy (approximately 4 GPM at 105F+/-).Prior attempts to locate high quality thermal energy were unsuccessful. H:\Rural Energy Group (REG)\AEA Bulk Fuel Upgrade (BFU)\Projects Funded\TENAKEE\Reports\Tenakee 10-6-03 tniprpt-dl.doc Page 4 of 4 2E:Tenakee visit of3 Subject:RE:Tenakee visit From:David Lockard <DLockard@aidea.org> Date:Tue,30 Sep 2003 16:08:26 -0800 To:'Shelly Wilson'<shelbert6@msn.com> CC:"Steven J.Stassel (E-mail)"<sstassel@ak.net>,David Lockard <DLockard@aidea.org> Shelly- Steve and |are making our travel arrangements now.We plan to charter with Alaska Seaplanes from Juneau on Monday,arriving in the early afternoon.We will charter out of Tenakee the next morning. We would like to visit the tank farm,powerhouse and school before the evening meeting,if possible.We have already been in contact with the school superintendent who has agreed to let us visit the school. In case anyone has any concerns,the Alaska Energy Authority has no regulatory authority.We work with the EPA and the Coast Guard to help communities bring their facilities into regulatory compliance,but are not involved in reporting code violations. !encourage you to look at the AEA and Denali Commission websites for more info: htto:/Awww.aidea.org/aea.htm http://home.gci.net/ denali/ David Lockard,P.E. Project Manager From:Shelly Wilson [mailto:shelbert6@msn.com] Sent:Tuesday,September 30,2003 3:40 PM To:David Lockard Subject:Re:Tenakee visit Dear Mr.Lockard, I returned your phone call today,but got tied up with EMS issues an wasn't home to receive your call.So email is just as efficient.10/06 as 8/24/2004 8:08 AM RE:Tenakee visit a meeting date is very good for us,too.We appreciate your willingness to travel to Tenakee to discuss this very important issue with us.We will schedule a town meeting for that evening.I have decided that we will organize a ''town"meeting as opposed to a City Council meeting due to quorum issues.This way,we are sure to have participation.If you have any questions,please feel free to phone me at home.907 736 2216.I am here most of the time.I do most of my business communications from home.Look forward to meeting you. Respectfully, Shelly P.Wilson,Mayor City of Tenakee Springs -_--Original Message ----- From:David Lockard To:'Bille66@aol.com' Sent:Tuesday,September 30,2003 8:52 AM Subject:RE:Tenakee visit Bill- We are planning on being there Monday,10/6,most of the afternoon and an overnight,so we can participate in a 7PM public meeting.Will that work? David £3 8/24/2004 8:08 AM RE:Tenakee visit From:Bille66@aol.com [mailto:Bille66@aol.com] Sent:Sunday,September 28,2003 6:36 PM To:DLockard@aidea.org Subject:Tenakee visit David.....The 7th is election day and our only meeting room and more then several of the people are tied up in the election.Would either of the other days do? Regards, Bill E. of 3 8/24/2004 8:08 AM