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Draft Report Chefornak Bulk Fuel Upgrade Site Investigation & Prelim Dec 12, 1997
"Ne OCwm wy) ROUP ICae\/ CRO OCm(= "GROUP DemMnog ROU. Si] SRS a= = ne Oe5SE OrON|Oe oT 7 aa 7 - eee wee F|_ _- aCF aE any, mo_) GROUP DE moGQ i ij a CoM SF a . ; >) 2 Pra Zi =|: _© RE O | Q)e Q\-foae )ON=6/(OesOe av Shn |e! < oC © oC G GROUE OI: 1) & OF CO: O\S ri.WWNOIOIao i"a te $y rieCrDaw Cc DiOCMm GS foe - _ORO DAMES &MOORE feltelUlag =A DAMES &MOORE GROUP COMPANY DRAFT REPORT CHEFORNAK BULK FUEL UPGRADE SITE INVESTIGATION AND PRELIMINARY DESIGN REPORT FOR THE STATE OF ALASKA, DIVISION OF ENERGY DECEMBER 12,1997 OyiG DAMES &MOOREBoss.4 DAMES &MOORE GROUP COMPANY 5600 B Street,Suite 100 December 12.1997 Anchorage,Alaska 99518-1641,907 562 3366 Tel ; 907 562 1297 Fax Mr.Percy Frisby 800 909 6787 Tel State of Alaska,Department of Community and Regional Affairs, Division of Energy 333 West Fourth Avenue,Suite 220 Anchorage,AK 99501 Draft Report -Chefornak Bulk Fuel Upgrades Site Investigation and Preliminary Design Work Order No.DM-97-008 D&M_Job No.37201-008-218 Dear Mr.Frisby: We are pleased to present four copies of our draft report presenting the results of our initial site investigation and data review,as well as our preliminary design for upgrades for the bulk fuel storage system for the City of Chefornak.We have also included two copies of the marked-up Bulk Fuel Assessment forms.Our work was conducted in general accordance with our proposal dated October 17,1997,and on the terms of our contract with the Division of Energy dated April 22,1997. Please review the attached draft report,and provide comment so that we may finalize the report and proceed with the design.If you have any questions regarding our report,or if you need any additional information,please call at your convenience. Sincerely, DAMES &MOORE Deborah S.Allen,P.E. 4 "hlJeffreyV.'Stanley,P.E. Contract Manager Attachment: Draft Report -City of Chefornak Bulk Fuel Upgrades Division of Energy Bulk Fuel Assessment Forms Offices Worldwide DRAFT REPORT CHEFORNAK BULK FUEL UPGRADE SITE INVESTIGATION AND PRELIMINARY DESIGN REPORT FOR THE STATE OF ALASKA DIVISION OF ENERGY Prepared by DAMES &MOORE 5600 B Street Anchorage,AK 99518 (907)562-3366 (voice) (907)562-1297 (fax) December 10,1997 D&M Job No.37203-008-218 TABLE OF CONTENTS Section Title Page 1.0 INTRODUCTION ..............cccccccccccccssesescecccescssesseacccascecscssscecucvcessesseceescesscesscssseseserecensesesessees1 2.0 EXISTING FUEL STORAGE FACILITIES1...eeccccceesssssecccccccecessessceeccesssseceeacsensecs 1 2.1 CITY OF CHEFORNAK TANK FARM (TANK FARM @1)...........ccecessessecceeeeseeeceneeeees 1 2.2 CHAFARNRMUTE CORPORATION TANK FARM (TANK FARM #2)..........:ccecceee 4 2.3.HIGH SCHOOL TANK FARM (TANK FARM #3)..........cccceesceeseceeeeecsecestenesesenseesaeeenes7 2.4 TEACHER'S HOUSING AND HEADSTART TANK FARM.Qu...ceceessesesscerceeeenes9 2.5 NATIONAL GUARD BUILDING (TANK FARM #5)...........ccccesecceeeesseeteeeseeeneeseerseeens 12 2.6 WATER TREATMENT PLANT TANK FARM (TANK FARM #6).............::ceeeeseeeee 14 2.7 JOHN AGAVOK TANK FARM (TANK FARM #7).........cccceccesseescececeecereeeeseeeneeeenees 14 3.0 CURRENT FUEL STORAGE AND USAGE .oun..ccc cc cecccccccssecceccescececesescenseceseeecesssssees 15 4.0 FUTURE FUEL STORAGE AND USAGE........c cece cece ccc ceeeeccccccecscccsecsceccecseucunscsesecessceeunes 16 5.0 PROPOSED TANK FARM.J.00..........ccccccccsecececcececsceccecceccecevcvsccceeeensussssscessucuuessasescceceeseeueees 19 5.1 CO-LOCATED TANK FARM FACILITY .0.....ccccc ccc cee cccccessecceceseccseseescsseacevesssceeuess 19 5.2.TEACHER'S HOUSING/HEADSTART TANK FARM....0.....00..ccccccccsscscsceseeeneesresseeees 24 6.0 PRELIMINARY COST ESTIMATES AND RECOMMENDATIONS............:cceesercerereeees 27 APPENDICES Appendix A Title Search Information (To be included in the Final Report) Appendix B_Preliminary Cost Estimates TABLES Table |Tank Farm #1 -City of Chefornak Tank Summary Table 2 Tank Farm #2 -Chefarnrmute Corporation Tank Summary Table 3 Tank Farm #3 -High School (Lower Kuskokwim Schoo!District)Tank Summary Table 4 Tank Farm #4 -Teacher's Housing/Headstart (Lower Kuskokwim School District) Tank Farm Summary Table 5 Tank Farm #5 -National Guard Tank Farm Summary Table 6 Available Fuel Storage and Estimated Usage Summary Chefornak Bulk Fuel Upgrade December 12,1997 State Of Alaska,Division Of Energy i D&M Job No.37203-008-218 FIGURES Figure 1 Location Map Figure 2 Vicinity Map Figure 3 Site Plan 1 -Co-Located Tank Farm Figure 4 Site Plan 2 -Co-Located Tank Farm Plan and Section Figure 5 Site Plan 3 Teacher's Housing/Headstart Chefornak Bulk Fuel Upgrade December 12,1997 State Of Alaska,Division Of Energy ii D&M Job No.37203-008-218 1.0 INTRODUCTION This preliminary design report presents the results of our data review and initial site investigation for the proposed Bulk Fuel Upgrade for Chefornak,Alaska.This report is based on information gathered during our site visit;as well as background data and information obtained from the Department of Community and Regional Affairs (DCRA),the Division of Energy (DOE),the Public Health Service (PHS),the Lower Kuskokwim School District (LKSD),Village Safe Water (VSW),and other public and private entities. The site investigation was conducted on October 28 and 29,1997.Representatives of each of the parties responsible for operating and maintaining the various existing bulk fuel storage facilities in the community were contacted during the site visit to gather information regarding the condition of the existing facilities and the need for additional and/or upgraded facilities.Additionally,the condition of each of the existing fuel systems was documented by visual inspection,and the suitability for incorporation of the various components of the systems into an upgraded and co- located facility was evaluated. 2.0 EXISTING FUEL STORAGE FACILITIES The following paragraphs summarize the results of our site investigation,and provide a description of the condition of each of the tank farms evaluated as part of this project.The location of the City of Chefornak is shown on Figure 1 -Site Location Map,and the layout of the community and the location of each of the tank farms discussed in this report are shown on Figure 2 -Vicinity Map. Photographs taken during the site visit are referenced throughout this section,and are included at the back of the report.As part of the scope of work,Dames &Moore revised the Bulk Fuel Community Database forms provided by the DOE,which were submitted separately from this draft report. 2.1 CITY OF CHEFORNAK TANK FARM (TANK FARM #1) Existing Facilities Tanks/Supports The City's tank farm is used to store diesel fuel to serve the City owned electric utility,Naterkaq Light,which produces electricity to serve most of the community.The tank farm consists of four December 12,1997ChefornakBulkFuelUpgradeD&M Job No.37203-008-218StateOfAlaska,Division Of Energy 1 single-walled welded steel tanks,three in a vertical configuration and one in a horizontal configuration (Photo 1).All tanks are aboveground.The tank farm is surrounded by an 8-foot high security fence,which is common to Tank Farm #2.The exact age of the tanks is unknown,but is estimated at 14 years.The accessible areas of the tanks were reported to have been painted in 1990 with a commercial grade paint.During the time of the site visit,the paint was observed to be peeling and flaking moderately,with rust in the bare areas.The tanks are not properly vented,but bolted manways are present on each of the vertical tanks.None of the tanks were found to have a label or faceplate indicating compliance with UL or API standards.Level gauges which appeared to be working properly were mounted on each vertical tank. The vertical tanks are supported on small dimension wooden timber platforms which are not in compliance with current code.The wooden platforms are placed directly on the tundra.The horizontal tank also rests on the tundra on a wooden timber bed.A summary of the measured dimensions and calculated volume of the four tanks is presented in the following table.Mr.Robert Panruk of Naterkaq Light reported that the present storage volume is not adequate.The City currently purchases fuel from the school annually,usually more than 5,000 gallons. TABLE 1 TANK FARM #1 -CITY OF CHEFORNAK TANK SUMMARY eig apacity base an or Length (ft)on Measured Condition (ft)Dimensions (gal) 1 12.1 11.9 9,980 Good Moderate Rust/Pitting 2 17.3 11.9 14,250 Good Moderate Rust/Pitting 3 12.1 11.9 9,980 Good Moderate Rust/Pitting 4 27.6 8.0 10,370 Fair Moderate Rust/Pitting Total 44,580 Notes:(1)Refer to Photo #1 for tank numbers. (2)All tanks store diesel. Spill Containment The vertical tanks are located in a diked area constructed of wood and sand bags with an exposed polyethylene liner.The dike is not in compliance with current code,is in poor condition,and is too Chefornak Bulk Fuct Upgrade December 12,1997 State Of Alaska,Division Of Energy 2 D&M Job No.37203-008-218 small for the installation.The horizontal tank is outside of the diked area resting directly on the tundra.No major spills were reported or observed during the site visit.Small spills have occurred in the past based on available data and conditions observed during the site visit.The presence of snow made it difficult to observe evidence of small spills,although minimal amounts of disturbed vegetation were observed near the tank structures and piping. Piping The tank farm is filled through a common fill line which is also used to fill the adjacent Chefarnrmute Native Corporation tank farm (Tank Farm #2).The fill lines consist of 3-inch diesel and parallel 3-inch gasoline threaded steel pipelines which are used to provide gasoline to Tank Farm #2 and diesel to both tanks farms.Valves and fittings are also threaded.The fill lines are supported on wooden blocks from a point about 100 feet from the Kinia River to both tank farms. The fill point located near the river is shown on Photo #3.Although the line is in generally good condition,rubber hose has been used to replace/supplement piping connections to the manifold between Tank Farms #1 and #2,which is a code violation. The tank farm manifold piping is 3-inch welded steel with flanged valves and fittings.The piping is relatively new,and in good condition.The distribution piping consists of relatively new 2-inch welded steel line with flanged valves.The line runs from the tank header (Photo #2)toward town across the tundra to a manually operated fuel transfer pumping station which is used to deliver fuel to the day tanks at the two generator shacks.The line is teed following the pump station to two 2- inch welded steel lines to the generator shacks.The line is supported by wooden block structures which were in fair to poor condition at the time of the site visit. Reuse of Existing Equipment Tanks -All four tanks appeared to be suitable for reuse with the installation of welded flanged nozzles and emergency venting to bring the tanks into compliance with current code requirements. It is also recommended that the tanks be refinished during refurbishment to minimize future corrosion. Piping -Tank farm manifold piping and valves are relatively new and in good condition and are suitable for reuse.Areas where rubber hose has been used must be replaced with welded steel piping and flanged fittings. Chefornak Bulk Fucl Upgrade State Of Alaska.Division Of Energy December 12,1997 3 D&M Job No.37203-008-218 The distribution line to the generators is also relatively new and in good condition,and the fuel transfer facility is operating satisfactorily.Both are therefore suitable for continued use.The pipe supports between the tank farm and the pump station and generator shacks are inadequate and should be replaced. The fill line is not considered to be suitable for reuse,because of the threaded joints which are generally not desirable for use in a subarctic environment.Welded or flanged joints are preferable over threaded,because of the differential movement which may occur due to the annual freeze-thaw cycle.Some of the pipe sections may be reused if the threads are removed and the pipe sections are welded and repainted. 2.2 CHAFARNRMUTE CORPORATION TANK FARM (TANK FARM #2) Existing Facilities Tanks/Supports The Corporation tank farm is used to store both gasoline and diesel fuel which is sold commercially to residents for use in home heating,vehicle fueling,and for other uses.The tank farm consists of ten single-walled welded steel tanks,five in a vertical configuration and five in a horizontal configuration.An aerial view of the tank farm is shown on Photo #4.Ali tanks are aboveground. Eight of the tanks are surrounded by an 8-foot chain link fence,and one horizontal and one vertical tank were installed more recently outside of the fenced area. The exact age of the tanks is unknown,but six of the tanks were installed between 1974 and 1983, two of the tanks were installed between 1983 and 1990,and the two exterior tanks were installed between 1995 and 1997.The security fence was not mentioned at the time of the previous assessment (1990),so the fence was likely installed since that time.It is unknown when the tanks were last painted.During the time of the site visit,the paint was peeling and flaking moderately, with rust in the bare areas.The tanks are not properly vented,and we were unable to access the top of the vertical tanks to observe if manways were present,although previous assessments indicated manways are present.The existence of a weak roof seam on the vertical tanks was suspected,but could not be verified.None of the tanks were found to have a label or faceplate indicating compliance with UL or API standards.No level gauges are present on the tanks. The vertical tanks are supported on small dimension wooden timber platforms which are not in compliance with current code.The wooden platforms are placed directly on the tundra.The Chefomak Bulk Fuel Upgrade December 12.1997 State Of Alaska.Division Of Energy 4 D&M Job No.37203-008-218 horizontal tanks also rest on the tundra on a wooden timber bed,with drums and small dimension lumber used for lateral support.A summary of the measured dimensions and calculated volume of the four tanks is presented in the following table.It is reported that the Corporation runs out of fuel annually,usually in April or early May.The shortage is estimated at 10,000 gallons. TABLE 2 TANK FARM #2 --CHEFARNRMUTE CORPORATION TANK SUMMARY Height or}Diameter |Capacity based Product Tank Comment Length (ft)on Measured Condition (ft)Dimensions (gal) 1 14.2 8.0 5,270 Diesel Fair Moderate Rust/Pitting 2 14.2 8.5 6,080 Diesel Fair Moderate Rust/Pitting 3 14.2 8.6 6,150 Diesel Fair Moderate Rust/Pitting 4 14.2 10.0 8,280 Diesel Fair Moderate Rust/Pitting 5 22.2 8.0 8,330 Gasoline Fair Moderate Rust/Pitting 6 27.4 8.0 10,300 Diesel Fair Moderate Rust/Pitting 7 27.5 8.0 10,330 Gasoline Fair Moderate Rust/Pitting 8 26.3 10.0 15,410 Gasoline Fair Leak Noted at Rear Drain Valve 9 14.2 8.0 5,310 Diesel Fair Moderate Rust/Pitting 10 27.7 8.0 10,400 Diesel Fair Moderate Rust/Pitting Total 51,790 -Diesel,34,070 -gasoline Notes:(1)Refer to Photo #4 for tank numbers. Spill Containment No secondary containment measures are present for any of the tanks.No major spills were reported or observed during the site visit.A small leak (1 drip per 3 to 5 seconds)was noted atthe rear of Tank #8 (Photo 6),although when the tank farm was re-visited the following day,no leak was evident.A pit had been dug beneath the leak,however no absorbent materials were present,nor were any measures taken to repair the leak.The leak was relatively small but could become significant over time if left unchecked.Staining of the wooden supports and stressed vegetation were noted throughout the tank storage area.The presence of snow made it difficult to observe evidence of small spills,although minimal amounts of disturbed vegetation were observed near the tank structures and piping. Chefornak Bulk Fuel UpgradeStateOfAlaska,Division Of Energy December 12,1997 D&M Job No.37203-008-218 Piping and Fill Stand The same fill lines which are used to fill Tank Farm #1 as previously described are used to fill Tank Farm #2.These line are also used to distribute fuel to the public fuel stand located north of the tank farm (Photo 7).Both the gasoline and diesel fill lines are teed to 2-inch threaded steel lines approximately 70 feet from the tank farm fence,as shown in Photo 8.Rubber hose is used extensively between the fill line tee for each product and the 2-inch lines to the fill stand.Valves on these distribution lines are also threaded. The header piping within the tank farm is steel with a combination of threaded and victaulic joints and fittings.The gasoline tanks are headered separately from the diesel.Rubber hose has been used extensively throughout the tank farm,including connecting the two newer tanks which are exterior to the fence.An example of the extent of the use of rubber hose is shown on Photo 9. The fill stand consists of a wooden shed which houses both gasoline and diesel dispensing pumps (Photo 10).The pumps are Fill-Rite Series 300,which were reported to work fine by the operator. The pumps appeared to be in good condition,except for a broken flow meter on one of the pumps. An external flow meter was installed to replace the broken meter,and rests on the floor of the shed. The fuel is dispensed directly from the bulk storage tanks,which is a violation of current regulation. Residents contact the pump operator and meet him at the fill stand for dispensing.The fill stand is difficult to reach in the summer due to the deteriorating condition of the existing boardwalk,as well as the lack of boardwalks in some areas.In addition,creek flooding and muddy conditions in the spring,summer,and fall make access difficult.The Corporation would like the fill stand moved closer to town so that it is more easily accessible to residents. Reuse of Existing Equipment Tanks -All ten tanks appear to be suitable for reuse with the installation of flanged nozzles and emergency venting to bring the tanks into compliance with current code requirements.It is also recommended that the tanks be refinished to minimize future corrosion.The eight foot fencing at the site could be relocated and reused,with the addition of barbed wire to extend the height to 10 feet. Piping -Tank farm manifold piping and valves are in poor condition and are not recommended for reuse.All existing pipe and rubber hosing should be replaced with welded and flanged pipe, fittings,and valves. Chefornak Bulk Fuct Upgrade December 12.1997 State Of Alaska,Division Of Energy 6 D&M Job No.37203-008-218 The distribution line to the fill stand is inadequate and should be replaced with new materials. Alternatively,some of the piping may be re-used if the threads are removed and the pipe sections welded and repainted.An adequate pipe support system will be required for all new or refurbished piping. As discussed for Tank Farm #1,the fill line is not considered to be suitable for reuse.Therefore, reuse of these lines will not be considered for the upgraded tank farm.Some of the piping may be reused if the threads are removed and the pipe sections welded.For purposes of cost estimating, we have assumed that all new pipe will be used. 2.3.HIGH SCHOOL TANK FARM (TANK FARM #3) Existing Facilities Tanks/Supports The High School tank farm is used to store diesel fuel for the new school complex near the airstrip. The fuel is used to generate power for the school and for heating.The tank farm consists of two single-walled welded steel tanks.One of the tanks is shown in Photo #11,and the second tank is located directly behind the tank shown.The tanks are aboveground in a vertical configuration and are identical.The tank farm is surrounded by a low fence located on top of the containment diking. The tanks are assumed to have been installed when the school was originally constructed,which was reported to be approximately 10 years ago.The paint finish had several minor spots where the paint was peeling with rust noted in the bare areas,but was generally in good condition.Proper emergency venting of the tanks does not exist,but manways exist on both the top and sides of he tanks.The existence of a weak roof seam on the tanks could not be verified.Neither of the tanks were found to have a label or faceplate indicating compliance with UL or API standards.No level gauges are present on the tanks. The vertical tanks are supported on small dimension wooden timber platforms which are not in compliance with current code.The wooden platforms are placed directly on the soil covering the dike liner.A summary of the measured dimensions and calculated volume of the tanks is presented in the following table. Chefornak Bulk Fucl Upgrade December 12,1997 State OfAlaska.Division Of Energy 7 D&M Job No.37203-008-218 TABLE 3 TANK FARM #3 -HIGH SCHOOL (LOWER KUSKOKWIM SCHOOL DISTRICT) TANK SUMMARY eight or Length Measured Condition (ft)Dimensions” (gal) 1 12.0 24.0 40,740 Good [Very Minor Rust 2 12.0 24.0 40,740 Good [Very Minor Rust Total 81,480 Notes:(1)Refer to Photo #11 for tank numbers. (2)All tanks store diesel fuel. Spill Containment The tank farm dike consists of a wood timber dike with a dike liner.The bottom of the dike liner is covered with soil,and the inside of the dike is covered with a galvanized steel liner.There is no drain for the diking system.Since its construction,the tank has experienced major differential settlement,possibly due to the heat transferred to the underlying permafrost by the steel liner. Measures to prevent thawing of the permafrost are not provided.The end of the tank farm closest to the school is significantly lower than the far end,casting doubt as to whether the storage volume within the dike is adequate per regulation.In addition,it is unlikely that the dike liner is intact due to the settlement problem.No major spills were reported or observed during the site visit.No signs of minor leaks were observed,however,the ground was covered with a light amount of snow, making it more difficult to identify stained areas. Piping Prior to the summer of 1997,a threaded steel fill line was present between the tank farm and the barge fill point near Tank Farms 1 and 2.The line was aboveground except near boardwalks,and was supported on timber stands.The pipeline was removed after the tanks were filled this summer, although some pipe sections had not been removed at the time of the site visit.It is unknown how the tanks will be filled in the future.The tank farm is not close enough to the barge fill point to allow filling with a hose. Chefornak Bulk Fucl Upgrade December 12,1997StateOfAlaska,Division Of Energy 8 D&M Job No.37203-008-218 The header piping within the tank farm is threaded and is suspended from wooden supports attached to the dike walls.The differential settlement at the tank farm has likely caused significant stress on the header and distribution piping.Fuel is distributed to two 500-gallon double-walled day tanks which serve the school generator and boiler.A pump which fills the day tanks is located inside of the tank farm as shown on Photo 12.The conduit which contains the electrical line to the pump was damaged near the dike wall,directly exposing the electrical lines to the elements. Reuse of Existing Equipment Tanks -Both tanks appear to be in good condition and suitable for reuse with the installation of welded flanged nozzles and emergency venting to bring the tanks into compliance with current code requirements.Although the paint surface is in relatively good condition,it is recommended that the tanks be refinished to minimize future corrosion since equipment and personnel to complete this activity will already be on site to refinish the tanks at the other tank farms.The settlement which has occurred at the site is a potentially serious problem.The tanks should either be relocated to a more suitable site,or measures implemented to repair the liner,stabilize the foundation,and prevent further settlement. Piping -Tank farm manifold piping is in good condition and is suitable for reuse assuming that the threaded fittings and joints are removed and replaced with welded connections. The existing pipe for the removed fill line was being stored near the tank farm at the time of the site visit.Although the pipe is threaded,it may be reused if the threads are removed and welded joints are used.For purposes of cost estimating,we have assumed that all new pipe will be used. 2.4 TEACHER'S HOUSING AND HEADSTART TANK FARM Existing Facilities Tanks/Supports The Teacher's Housing and Headstart facility are located at the eastern end of town.The tank farm is used to store diesel fuel to provide heating and power generation for these facilities.The tank farm consists of six single-walled welded steel tanks as shown on Photo #12.All tanks are aboveground,and the facility is not fenced.The exact age of the tanks is unknown,although four of the tanks were reportedly installed prior to,and two of the tanks after,1974.The tanks were reported to have been painted in the summer of 1990;however,the condition of the paint was poor, Chefornak Bulk Fuel Upgrade State Of Alaska,Division Of Energy 9 December 12,1997 D&M Job No.37203-008-218 with significant peeling and chipping.Significant rust was present in unpainted areas.The tanks were provided with manways through the roof,but no emergency venting was provided and a weak roof seam was not verified.None of the tanks were found to have a label or faceplate indicating compliance with UL or API standards.No level gauges were present on the tanks. The tanks are supported on small dimension wooden timber platforms which are not in compliance with current code.The wooden platforms are placed directly on the soil beneath the tank farm.No evidence of a dike liner was noted.The tank farm is located less than 20 feet from the Kinia River, and is in the floodplain.The level of the tank farm is only about 2 feet above the normal water level of the river.The tank farm showed evidence of differential settlement,as many of the tanks were leaning.In one case,the tops of two tanks were only separated by an inch or two (Photo 13).This is aserious concern.With continued settlement,the tanks may continue to lean further,increasing the potential for a serious spill.In addition,the tanks are generally less than two feet apart,which does mot meet current code.A summary of the measured dimensions and volume of the tanks is presented in the following table. TABLE 4 TANK FARM #4 -TEACHER'S HOUSING/HEADSTART (LOWER KUSKOKWIM SCHOOL DISTRICT) TANK SUMMARY Height or Diameter |Capacity Based Tank CommentsLength(ft.)on Measured Condition (ft.)Dimensions (gal.) 1 13.6 9.1 6,590 Poor Major Rust/Pitting 2 13.6 8.6 5,920 Poor Major Rust/Pitting/ Severe Leaning 3 13.6 8.6 5,920 Poor Major Rust/Pitting/ Severe Leaning 4 13.6 8.1 5,240 Poor Major Rust/Pitting 5 13.9 9.6 7,440 Poor Major Rust/Pitting 6 13.9 9.1 6,680 Poor Major Rust/Pitting Total 37,790 Notes:(1)Refer to Photo #12 for tank numbers. (2)All tanks are used to store diesel. Chefornak Bulk Fuel Upgrade December 12,1997StateOfAlaska,Division Of Energy 10 D&M Job No.37203-008-218 Spill Containment/Spills The tank farm dike consists of a 12 inch wood timber dike with a galvanized steel liner.The dike construction is not in compliance with current code,and the dike is likely too small to meet the current code requirements.The LKSD maintenance person reported overfill of one of the tanks at one time in recent years.It is not known how much fuel was spilled.The soil within the tank farm was generally dark and devoid of vegetation,indicating that several small spills or leaks have occurred over the years.The soil beneath the generator day tanks was also darkly stained and barren of vegetation,indicating the occurrence of many small spills over the years.A leak in one of the distribution lines at the complex is described in detail in the piping section below. Piping A 3-inch steel fill line with victaulic couplings and fittings and threaded valves runs from the barge fill point south to the boardwalk and then parallels the boardwalk to the tank farm as shown on Figure 2.The barge fill line connection point at one time served the National Guard and Public Health Service water treatment plant (WTP)tank farms (Tank Farms 5 and 6).The line was teed at the boardwalk crossing at which point it ran east to the school and west to the ANG and WTP tank.Sometime during the last several years,the westward line was capped approximately 20 feet from the tee,and the fill line to the ANG removed. The header piping within the tank farm has victaulic joints and fittings (Photo 15).Valves and tank connections are threaded.No expansion joints were observed,and it is likely that temperature changes and settlement of the tanks is causing significant stress on the tank header piping.The fill line piping is also used as distribution piping.Smaller lines run to the day tanks at the generator shed,two teacher's housing units,and the Headstart day care center.The distribution lines to the Headstart and Teacher's Housing are no longer in use.These day tanks are filled manually. The distribution piping includes a line which runs into the old elementary school building which is now used for storage and is not heated.Although this line was reportedly shut off after filling the tanks this fall,a leak was noted in the pipe under the boardwalk between the storage building and the generator shed (Photo 16)during the site visit.The leak appeared to be on a straight section of pipe rather than at a fitting,coupling,or valve,which may indicate possible rust-through of the pipe. It is unlikely that the pipeline was damaged by mechanical means such as being hit by a vehicle because of its location under the boardwalk.A pit had been dug out beneath the pipe,and the pipe had been wrapped with electrical tape.However,no other attempt had been made to repair the leak or to contain the spill. December 12,1997ChefornakBulkFuclUpgradeD&M Job No.37203-008-218StateOfAlaska.Division Of Energy I Reuse of Existing Equipment Tanks These tanks are the oldest in Chefornak,and were likely installed sometime during the 1960's.The tanks showed signs of heavy rusting and are generally in poor condition.The tanks are likely unsuitable for reuse without additional inspection of the tank interior and a more detailed corrosion evaluation.For purposes of this evaluation,we have assumed that these tanks will not be reused. Piping -The tank farm manifold piping and barge fill line piping are also old and in similar condition to the tanks.Because of the leak described above,corrosion of the piping is a serious concern.Therefore,we have assumed that none of the piping will be reused. 2.5 NATIONAL GUARD BUILDING (TANK FARM #5) Existing Facilities Tanks/Supports The Alaska National Guard Facility (ANG)is located at the eastern end of town,west of the Teacher's Housing and Headstart complex.The tank farm consists of two tanks which are used to heat the ANG building.The tank farm consists of one single-walled and one double-walled welded steel tanks.The single walled tank serves the older part of building and is located on the western end of the building (Photo 17).The tank was is fairly good condition,with some moderate peeling paint and rust.The tank is not diked,although it is required to be by code,does not have an emergency relief vent,and is located too close to the building.The double-walled tank is located on the north side of the building and meets all current codes (Photo 18).Both tanks are aboveground,and are mounted on skids which rest directly on the ground surface.The age of the single walled tank is unknown,and the double walled tank was reported to have been installed in 1990 when the new addition to the building was constructed.Automatic level sensors were provided on both of the tanks;however,we were unable to verify whether the gauges were working at the time of the site visit.Neither of the tanks were provided with a security fence,lightly,or signage.A summary of the measured dimensions and volume of the tanks is presented in the following table. Chefornak Bulk Fuel Upgrade December 12,1997StateOfAlaska,Division Of Energy 12 D&M Job No.37203-008-218 TABLE 5 TANK FARM #5 -NATIONAL GUARD TANK SUMMARY Height or |Diameter |Capacity based Tank Comments Length (ft.)on Measured |Condition(ft.)Dimensions”! (Gal.) l 10.3 6.4 2,500 Good Minor Rust 2 10.5 5.4 1,810 Fair Moderate Rust,Pitting and Paint Peeling Total 4,310 Notes:(1)Tank #1 is the double-walled tank. (2)Both tanks store diesel. Spill Containment/Spills The single-walled tank has no diking,although this is required by regulation.The double-walled tank is self-contained and is not required to be diked.No historical spills were reported by residents,and no evidence of spills was observed during the site visit. Piping This tank farm was at one time served by a branch of the same fill line which serves the Teacher's Housing and Headstart complex.As noted in Section 2.4,the fill line was removed about 20 feet from the tee to the school at some time in the past.It is assumed that the tanks are currently filled manually. The distribution lines are threaded,and are reported to feed to day tanks with suction pumps within the building.This piping is in good condition and appears to conform to applicable codes. Reuse of Existing Equipment Tanks -The double-walled tank is in compliance with current codes.Because of the small volume of fuel required to service this building,it is not recommended that a dike be constructed and the existing tank reused.It would likely be more appropriate and cost effective to install one additional Chefornak Bulk Fucl Upgrade December 12,1997 State Of Alaska,Division Of Energy 13 D&M Job No.37203-008-218 double-walled tank similar to the newer tank at the facility.Because of the small size of the single- walled tank,it is not recommended for reuse at a co-located facility. Piping -The piping for the double-walled tank is in good condition and can remain in place.The piping to the single-walled tank will likely be replaced as part of the new tank installation. 2.6 WATER TREATMENT PLANT TANK FARM (TANK FARM #6) Based on historical information provided by DOE,the WTP tank farm consisted of one tank located east of the WTP building.Sometime in the last couple of years,the tank was moved to Tank Farm #2.The tank is located north of and outside of the Tank Farm #2 fence,as described in Section 2.2. The WTP is now served by a day tank which is filled manually. 2.7 JOHN AGAVOK TANK FARM (TANK FARM #7) Existing Facilities Tanks/Supports This tank farm consists of one horizontal single walled welded steel tank (Photo 19)located on the tundra northwest of Tank Farms #1 and #2.Mr.John Agavok,the tank owner,purchased the 8,000 gallon tank in 1990 so that he could sell gasoline to local residents.The tank was in good condition; however,the installation meets almost no code requirements for bulk fuel storage and retail sale. The tank rests on a plywood platform with small dimension lumber lateral bracing.The platform rests directly on the tundra.Over 30 tanks,totaling approximately 28,000 gallons in storage volume were scattered over the tundra in the area west of Tank Farms #1 and #2 (Photo #20).The tanks are likely used by local residents to store gasoline for vehicle and boat fueling.None of the tanks meet current code requirements.Most of these additional tanks rest directly on the tundra.Mr.Robert Panruk stated that most of the tanks were empty because commercial fishing had been poor this year,and most people did not have enough money to fill their tanks when the fuel barge came. However,in most years many of the tanks are used by individual residents. Spill Containment/Spills None of the tanks in this area have diking,although this is required by regulation in most cases.No large spills were reported by local residents in this area,and no evidence of major spills was observed during the site visit.However,due to the lack of control over distribution methods of the Chefomak Bulk Fuel Upgrade December 12,1997 State Of Alaska,Division Of Energy 14 D&M Job No.37203-008-218 fuel from the Agavok and other tanks on the tundra,it is almost certain that spills have occurred in this area over the years. Piping There are no piping or dispensing systems associated with the Agavok tank or any of the other miscellaneous tanks spread throughout the tundra. Reuse of Existing Equipment Tanks -The 8,000 gallon Agavok tank could potentially be used to provide additional storage in a co-located facility,assuming that an agreement could be reached to purchase the tank from Mr. Agavok.It is not recommended that the general public be allowed to maintain private tanks within any new facilities. 3.0 CURRENT FUEL STORAGE AND USAGE Table 6 presents a summary of the available fuel storage and estimated usage based on our understanding of the current conditions in Chefornak.The estimated current fuel usage for the various facilities is based on information collected during the site visit,and subsequent telephone conversations with persons responsible for maintenance of the facilities.Fuel deliveries to Chefornak typically occur twice and occasionally three times during the year.The first barge usually arrives in June and the last fuel barge delivers during the month of September. TABLE 6 AVAILABLE FUEL STORAGE AND ESTIMATED USAGE SUMMARY Tank Owner Product Storage Available |Current Estimated UsageFarmNo.Stored (gal)(gal/yr.) 1 City of Chefornak Diesel 44,600 45,000 -55,000 2 Chefarnrmute Corp.Diesel 51,790 55,000 -65,000 Gasoline 34,070 30,000 -40,000 3 High School (LKSD)Diesel 81,480 40,000 -50,000 4 Headstart (LKSD)Diesel 37,790 15,000 -20,000 5 National Guard Diesel 4,310 3,000 -4,000 6 WTP Diesel 0 <2,000 7 John Agavok and Gasoline 8,445 (Agavok)20,000 -30,000 Other Private Tanks 12,253 (other) Total Diesel 220,950 158,000 --194,000 Gasoline 70,800 50,000 -70,000 December 12,1997 D&M Job No.37203-008-218ChefornakBulkFuelUpgrade State Of Alaska,Division Of Energy 15 fl Higt(46,000 GosHlg thCO290 Fuel Lous 156,000 OD Low 30,000 The volumes presented in Table 6 were established based on several factors including the following. e The City of Chefornak reported that they usually purchase a minimum of 5,000 gallons per year from the LKSD.The City usually runs out of fuel for power generation sometime during April or early May. e The Chefarnrmute Corporation also runs out of fuel sometime in April or early May.As with many communities in the area,residents from other communities often come to buy fuel if there is a shortage in their community.The corporation often must prohibit non-residents from purchasing fuel late in the year,and sometime limits the amount of fuel which can be purchased by local residents.Mr.Jack Wiseman of the Chefarnrmute Corporation reported that the annual shortage is on the order of 10,000 gallons,although he was not sure of the respective quantities of gasoline and diesel.Mr.Wiseman reported that the Corporation purchased over 33,000 gallons of gasoline and over 40,000 gallons of diesel this year.This diesel quantity seems low based on the storage volume available and the reported annual shortages. e The LKSD prefers to maintain approximately double the storage volume which they usually need each year according to Mr.Jim Kohl in Bethel. e The quantities used at the National Guard are unknown.The values presented in the Table 6 are based on the available storage volume. e The volume stored in the Agavok tank and in the other privately owned tanks is assumed to be approximately half of the total volume of gasoline used each year.It is unlikely that all of the numerous tanks are filled and used each year. 4.0 FUTURE FUEL STORAGE AND USAGE In order to establish the estimated required storage volume,current use as well as projected growth in the community should be considered.In addition,construction of new facilities which may increase fuel consumption by other government or private entities should also be taken into account. The following items were evaluated as part of our analysis of the future fuel storage needs for the community of Chefornak. e Adequate storage volume for the needs of each individual entity must be provided.It is preferred that the sale and transfer of fuel will not regularly occur between the various parties. Chefomak Bulk Fuel Upgrade State Of Alaska,Division Of Energy 16 December 12,1997 D&M Job No.37203-008-218 e The current population of Chefornak is 393,according to the most current Department of Community and Regional Affairs Community Profile.New housing was constructed in the area south of town in recent years,and no new housing in proposed for construction in the next few years.Based on a typical growth rate of 2%to 3%for the Bethel Census area,the population of the community will likely increase by about 40 to 50 people in the next 5 years,with similar growth expected in subsequent years. e Gasoline sales are increasing due to more vehicles (ATV's,snowmobiles,and boat motors) being purchased by residents of the community.Use of gasoline in the community is highly dependent upon the success of the local commercial fishery each year. e Adequate fuel storage volume to prevent the shortages currently experienced by both the City of Chefornak and the Chefarnrmute Corporation should be included in the tank farm over and above the volume needed for estimated future growth. e Village Safe Water (VSW)is currently in the process of assisting the City with the development of a new water source and treatment system.According to Mr.Mike Wolski of VSW, construction next summer may include a sewage lagoon,anew WTP,improvements to the town infrastructure,and other items depending upon the funding level authorized.The WTP is proposed to be located east of the Teacher's Housing and Headstart complex.Once the new WTP is on line,the existing WTP will be converted to a garage for materials and equipment storage.VSW requests that space for one approximately 6,000 to 8,000 gallon tank be allotted in the corporation cell for the water and sewer improvement project.The tank will be installed at a future time.The fuel will be hauled to the new WTP manually by City personnel. e The use of all tanks which are currently privately owned and not in compliance with regulations will be disallowed once the new tank farm is operational.For purposes of estimating volumes, it is assumed that these residents will purchase gasoline on a retail basis from the Chefarnrmute Corporation.It is also assumed that the tanks on the tundra are used to store gasoline. Therefore,the gasoline storage volume at the Corporation tank farm should be increased to include this storage volume.For estimating purposes,20,000 gallons,or approximately 55% of the total 36,000 gallons available in the Agavok and other tundra storage tanks,has been included in the new tank farm. e The volume of storage available for the High School and National Guard is adequate for current and future needs.No additional storage volume will be provided. December 12,1997ChefornakBulkFuelUpgradeD&M Job No.37203-008-218StateOfAlaska,Division Of Energy 17 e The volume of storage available at the Teacher's Housing and Headstart complex is more than adequate for current and future needs.The use of the facility decreased upon construction of the new High School,reducing the amount of fuel required.In addition,as part of the VSW WTP construction project,power will likely be extended past the complex and to the WTP.If the LKSD connects the facility to community provided power,power generation will no longer be required,further reducing the need for fuel storage.Based on the results of this assessment, the condition of the existing tank farm which serves this complex is poor.Although other alternatives are considered in Section 5.0,for purposes of this analysis,we have assumed that the existing tank farm will be replaced by two 10,000 gallon self-diked tanks located west of the old elementary school building (now cold storage). Based on the information presented in the above paragraphs,we propose the following approximate storage volumes for the various fuel storage facilities in Chefornak. e City of Chefornak -Diesel Fuel Storage 1.Approximate Current Storage Available 44,000 gallons 2.Approximate Annual Shortage 6,000 gallons 3.Estimated Future Growth (15%)8,000 gallons Total Storage Volume Required 58,000 gallons Upgrades to this tank farm will require the addition of one new 14,000 gallon vertical tank. e Chefarnrmute Corporation -Diesel Fuel Storage 1.Approximate Current Storage Available 52,000 gallons 2.Approximate Annual Shortage 10,000 gallons 3.Estimated Future Growth (18%)14,000 gallons Total Storage Volume Required 76,000 gallons Upgrades to the diesel storage volume of this tank farm will require the addition of three new 8,000 gallon vertical tanks. e Chefarnrmute Corporation -Gasoline Storage 1.Approximate Current Storage Available 34,000 gallons 2.Approximate Annual Shortage 2,000 gallons 3.Approximate Private Tank Storage 20,000 gallons 4.Estimated Future Growth (15%)10,000 gallons Total 66,000 gallons ChefomakBulkFuclUpgrade a SO December 12.1997 State Of Alaska,Division Of Energy 18 D&M Job No.37203-008-218 Upgrades to the gasoline storage volume at this tank farm will require the addition of four new 8,000 gallon vertical storage tanks. 5.0 PROPOSED TANK FARM 5.1.CO-LOCATED TANK FARM FACILITY A proposed co-located tank farm will incorporate the existing and proposed tanks for the City of Chefornak and the Chefarnrmute Corporation.Both of these entities will have tanks placed in separately diked cells,and will be piped separately.A common barge fill line will be used to provide diesel to both tanks farms,and one barge fill line will also be installed to supply gasoline to the Chefarnrmute Corporation tanks.A new fill stand from which the Corporation can dispense fuel to the residents is proposed to be located northeast of the tank farm,and across a small slough. This will provide better access to residents and will eliminate past problems caused by flooding and poor road conditions between the community and the location of the existing fill stand.A preliminary layout of the co-located facility is presented on Figures 3 and 4.Adequate tankage will be provided to accommodate the estimated current and future usage for the community as outlined in Section 4.0 -Future Fuel Storage and Usage.An additional cell has been included in the preliminary layout of the co-located facility to allow for relocation of the LKSD tanks currently located at the High School. During development of the preliminary design for the co-located tank farm,various background information was collected and considered.A summary of this data is provided in the following paragraphs. General Site Conditions The new co-located tank farm site is proposed to be located at the current location of the City and Chefarnrmute Corporation tank farms.The ground surface within the tank farm and in the surrounding area consists of tundra vegetation typical of the Yukon-Kuskokwim Delta region.The tank farm location is located on a small knoll,correspondingly,the land gently slopes downward in all directions.The proposed tank farm is to be located within an approximately 162 by 92 foot fenced area.Access to the site is by existing boardwalk and dirt road.During the summer months access to the site is sometimes difficult due to flooding between town and the tank farm and due to the muddy condition of the areas where no boardwalk exists. December 12.1997ChefornakBulkFuclUpgradeD&M Job No.37203-008-218StateOfAlaska.Division Of Energy 19 Property Ownership and Right of Way (to be updated after receipt of Title Search Information) A title search for the subject property was conducted by Land Title Company of Alaska,Inc.The title search information has not yet been received,but will be included in Appendix A of the final version of the report.The land on which the tank farm is located is currently owned by the Alaska Department of Transportation and Public Facilities (ADOT).The tank farm is located within the runway clear zone,although it is not considered a hazard to aviation,even considering the height of the tanks,because of the 20 foot elevation difference between the tank farm and the airstrip. During several discussions with the ADOT,it has been determined that the Chefornak airstrip is proposed to be moved to a location about 1.5 miles southeast of town.Construction is anticipated to begin in 1999 or 2000 at the latest.The ADOT has expressed no concern with leaving the tank farm in its current location,or with completing the planned upgrades.However,any construction activities within the clear zone would need to be scheduled and coordinated with ADOT in Bethel. Once the ADOT vacates the existing airstrip,the land will likely revert to the native Corporation. Of concern with the location of the tank farm is the HUD restriction which will not allow the use of HUD funds for construction of facilities within the runway clear zone.According to the data provided by DOE,there are exceptions to this restriction.It is possible to shift the tank farm to the southwest so that it would not be located within the ADOT property;however,construction of piping would still be required within the clear zone.It is our opinion that the proposed location is the best location for the tank farm,primarily because it is located far enough from town,and is on the highest point in the immediate area.Therefore,we would propose that DOE negotiate an exception with HUD for funding of the project.This should be fairly easy to accomplish,especially since the ADOT will be vacating the property in the next couple of years,after construction of the new airstrip. Floodplain Evaluation The average elevation of the existing ground surface at the tank farm is approximately 80 feet. According to the Army Corps of Engineers,there is no specific flood dataavailable for the Kinia River in the vicinity of the tank farm.Local residents report that the river usually floods in the spring and occasionally during heavy precipitation to a level of approximately 78 feet in the vicinity of the tank farm.Although no one we spoke to could remember the existing tank farm itself being flooded,the water can rise to approximately 20 to 30 feet from the fence.The elevation of the Chefornak Bulk Fuel Upgrade December 12,1997StateOfAlaska,Division Of Energy 20 D&M Job No.37203-008-218 proposed tank farm is only slightly above this level,which is a another reason to keep the tank farm at its current location,which is generally the highest point in the immediate vicinity.Because the tank farm is located above the highest reported flood in the area,design of flood prevention measures will not be necessary. Site Drainage The proposed site location is generally flat,with the ground surface sloping gently away in all directions.Drainage from the site should be adequate assuming that proper grading is performed during construction.There is a small drainage which discharges into the Kinia River located to the south and west of the tank.The drainage is susceptible to flooding during spring and heavy precipitation events.This flooding and the poor condition of the dirt roads during the summer months make access to the site difficult.A tundra pond which is currently being used by the LKSD as a sewage lagoon is located approximately 200 feet southeast of the site.Since the surface elevation of the lagoon is several feet below the ground surface at the tank farm,drainage in this area should not be a problem. Geotechnical There are generally believed to be two different geologic formations in the immediate area of Chefornak.One of the formations consists of layers of volcanic rock and soft silt of varying depths. Previous drilling completed in town indicated a 10 to 20 foot thick layer of soft silt underlain by an approximately 40 foot thick layer of basalt.The basalt is underlain by silt with occasional layers of fine sand to a depth of approximately 105 feet at which another layer of basalt of unknown thickness was encountered.The majority of the community itself is situated on this formation, which is believed to be generally higher in elevation than the typical deltaic deposits present throughout the surrounding area.The other formation consists of silts and fine sands with permafrost of varying depths,which is typical of the soils throughout the Yukon-Kuskokwim Delta. Boulders are scattered throughout the community,as well as along most of the riverbank along the ridge on which the community is located.These boulders were likely heaved up over the years by the freeze and thaw action of the underlying silt. No specific geotechnical data was available for the project site.Soil conditions will be investigated as part of the design phase of the project later this winter. Chefornak Bulk Fuel Upgrade Statc Of Alaska.Division Of Energy 21 December 12,1997 D&M Job No.37203-008-218 Preliminary typical cross-sections of the tank farm dikes are shown on Figure 4.This proposed design assumes that approximately 2 feet of organic mat and organic silt will be removed,and that the tank farm foundation will be constructed immediately on the underlying soil.The excavated area will be backfilled with non-frost susceptible gravel/sand material.The final fill section will be (2-3) feet thick.The final cross-section design will depend on the results of the geotechnical investigation and the availability of adequate gravel/sand fill material. Tanks Figure 4 provides a site plan and layout of the proposed facility.New and existing tanks will be used to provide adequate storage to meet the current and future fuel storage needs of the community. The Chefarnrmute Corporation cell also includes a dual product dispensing tank to accommodate the proposed new fill stand.The proposed tank farm will require the purchase of six new vertical BIA style tanks to accommodate storage for the City and Corporation.The existing tanks at the High School will be moved to the new site.The approximate total fuel storage capacity is shown below. City of Chefornak Diesel 58,000 gallons Chefarnrmute Corporation Diesel 76,000 gallons Gasoline 66,000 gallons Relocation of the LKSD High School tanks is included in the proposed tank farm as an additive alternate.A cell for relocation of the two existing tanks has been included in the design,allowing for their current storage of approximately 82,000 gallons. Secondary Containment Sand/gravel dikes are proposed as secondary containment for the new tank farm.It is unlikely that a borrow source is available in the immediate vicinity of the community.The ADOT plans to complete a borrow source investigation later this winter as part of the geotechnical investigation for the airstrip relocation project.It is reported that a source may be available at Tern Mountain,which is located approximately five mile from the community;however,permitting this location as a borrow source may be difficult.Further efforts to identify a borrow source will be coordinated with Chefornak Bulk Fuel Upgrade December 12,1997 State Of Alaska,Division Of Energy 22 D&M Job No.37203-008-218 the ADOT's efforts.The dikes will be lined with a primary membrane liner with a sand/gravel layer covering the liner to protect it from wear.The dike side slopes will be reinforced with 6 inch deep cellular confinement grid to maintain the cover over the liner. Fuel Dispensing and Distribution The Chefarnrmute Corporation fuel dispensing operations will be located approximately 400 feet west of the project site,near the point where the existing City distribution line crosses the road as shown on Figure 4.A new 4,000 gallon dual product insulated dispensing tank connected to the existing retail-metering pumps of the Corporation will be used to dispense fuel to both the residents and the City.This tank should provide adequate storage to meet the daily needs of the community, while minimizing the size of the tank farm.Repairs will be required to one the existing pumps to repair or replace the flow meter.Since the fill stand will be located approximately 400 feet from the tank farm,dual 2-inch diameter lines will be run from the dual product dispensing tank to the metered pumps at the fill stand. Distribution of diesel fuel to the City generators will be accomplished using the existing pumping facility and welded steel pipeline.The only upgrades planned include installation of new,more durable pipe supports,which can also support the dispensing lines to the fill stand,and the distribution line to the school facilities.The proposed system will include meters at the tank farm to track the fuel transferred. Barge Fill Line The proposed fill lines will be located within the same corridor as the existing fill line.Two 3-inch lines are proposed to allow for supply of both gasoline and diesel.The tank farm is located approximately 3 feet in elevation above the marine header.Due to this minimal elevation difference,and the fact that the line will only be approximately 300 to 400 feet long,3-inch lines will be adequate to effectively fill the tanks in a reasonable amount of time. Typical piping will be schedule 80,low temperature,carbon steel pipe with welded joints.Flanged connections will be used for the connection of various equipment and/or fittings. December 12,1997ChefornakBulkFuelUpgradeD&M Job No.37203-008-218StateOfAlaska,Division Of Energy 23 5.2.TEACHER'S HOUSING/HEADSTART TANK FARM Several options were considered for providing bulk fuel storage for the Teacher's Housing and Headstart facility,which is owned by the LKSD.A brief discussion of each of these options is provided below.Each of the options considered will also include the installation of new piping and day tanks for the generator shed,Headstart,and housing units,as well as demolition of the existing tank farm. e Option 1 -Haul Fuel from the Co-Located Tank Farm.This option includes providing a haul . vehicle and miscellaneous equipment as required to allow the LKSD to haul fuel from the proposed LKSD cell in the new tank farm.No additional storage will be required at the LKSD tank farm. e Option 2 -Construct a Pipeline from the Co-located Tank Farm to the Teacher's Housing Area. The pipeline would generally follow the boardwalk as shown on Figure 2.No additional storage will be placed at the LKSD tank farm.Construction and maintenance of this pipeline may be difficult due to its length (nearly 3,000 feet)and since the pipeline is proposed to follow the boardwalk practically throughout its length.Because of its location,the pipeline would be susceptible to damage from vehicles and other human contact,increasing the risk of a spill or other incident. ¢Option 3 -Construct Self Diked Tanks West of Elementary School Building.This option would include the installation of two new 10,000 gallon self-diked tanks which will be installed in a fenced area west of the complex.A barge fill line which would originate at approximately the same location as the existing barge fill line will also be constructed.Refer to Figure 5 for a layout of the proposed tank and piping configuration. During the analysis of Option 3,which requires construction of a new tank farm,various background information was collected and considered.A summary of this data is provided in the following paragraphs. General Site Conditions If Option 3 is selected as the preferred alternative,two new 10,000 gallon tanks are proposed to be constructed southwest of the Teacher's Housing and Headstart complex as shown on Figure 5.The ground surface within the tank farm and in the surrounding area consists of tundra vegetation typical Chefornak Bulk Fuel Upgrade December 12,1997StateOfAlaska.Division Of Energy 24 D&M Job No.37203-008-218 of the Yukon-Kuskokwim Delta region.The tank farm location is located in a relatively flat area, with an elevation of about 79 feet.Access to the site will be provided by the existing boardwalk which currently provides access to the facility.The existing tank farm will be demolished,and it is unlikely that any of the existing materials will be reused. Property Ownership and Right of Way Although a title search was not conducted on this property,the land on which the proposed tank will be located appears to be LKSD property,based on a review of available drawings.If this option is selected,further coordination with LKSD to establish title to the land will be required. Flood Plain Evaluation Local residents report that the proposed area for the tank farm does not flood.The existing tank farm is only approximately 2 feet above the normal level of the river,which further necessitates moving the tank to a more suitable location. Site Drainage The proposed site is generally flat,with the ground surface sloping gently downward north toward the river,west toward the main part of town,and east toward the school.A small drainage which discharges into the Kinia River is located approximately 150 feet south of the proposed tank. Assuming that proper grading is performed during tank installation,drainage should not be a problem at the proposed site. Geotechnical Similar geotechnical conditions to those discussed under the previous section are anticipated at the project site.During the geotechnical investigation scheduled for later this winter,it is recommended that one boring be installed at the proposed location of the tank farm to establish geotechnical conditions.Depending upon the conditions encountered during the geotechnical investigation,it is anticipated that the foundation construction will include removal of organics and silt as required until competent material is encountered.Gravel/sand will be used for foundation material, depending upon the identified borrow source as previously discussed. December 12,1997ChefornakBulkFuelUpgrade 25 D&M Job No.37203-008-218StateOfAlaska,Division Of Energy Tanks Figure 5 provides a site plan of the proposed tank farm.We understand that the facility currently uses approximately 15,000 gallons per year.This may decrease if the Teacher's Housing is moved in several years,and if the facility is connected to City power,which will eliminate the need for power to be generated on site.Therefore,we propose that two 10,000 gallon horizontal welded steel self-diked tanks be installed.One of these tanks may be moved to the co-located tank farm at a later date,as use decreases at the Teacher's Housing/Headstart area. Secondary Containment Self-diked tanks which meet all current code requirements for secondary containment are proposed for installation.Therefore,no gravel dike or other additional containment measure will be required. Fuel Distribution Fuel will be distributed to the generator shed,Teacher's housing units,and Headstart building using 2-inch welded steel pipe.New day tanks will need to be installed at each unit,because of the age and poor condition of the existing tanks.A 500-gallon double-walled tank is proposed for installation at the generator shed,and 300-gallon single walled day tanks are proposed for each of the other installation locations.It is anticipated that none of the existing piping will be used due to its age and anticipated poor condition. Barge Fill Line The proposed fill line will be located at approximately the same location as the existing fill line. One 3-inch line is proposed between the current marine header and the new tank.The tank farm is located approximately 3 to 4 feet in elevation above the marine header.Due to this minimal elevation difference,and the fact that the line will only be approximately 150 feet long,a 3-inch line will be more than adequate to effectively fill the tank in a reasonable amount of time. Typical piping will be schedule 80,low temperature,carbon steel pipe with welded joints.Flanged connections will be used for the connection of various equipment and/or fittings. Chefornak Bulk Fuel Upgrade December 12,1997StateOfAlaska,Division Of Energy 26 D&M Job No.37203-008-218 6.0 PRELIMINARY COST ESTIMATES AND RECOMMENDATIONS Separate cost estimates have been prepared for the City Tank Farm,the Chefarnrmute Corporation Tank Farm,the High School Tank Farm,and each of the three options considered for the Teacher Housing/Headstart area.The cost estimates were based on using force account construction methods with City provided equipment.A 20%contingency has been included,along with an additional 6%for materials procurement and project administration.Based on the preliminary design and the information presented in this report,the estimated cost to construct the various aspects of the project are as follows.Detailed cost estimate spreadsheets are included for reference in Appendix B. New Co-Located Tank Farm City of Chefornak Cell $277,500 Chefarnrmute Corporation Cell $729,500 Total $1,007,000 Lower Kuskokwim School District Alternatives Relocate High School Tanks to Co-Located Tank Farm $310,800 Teacher's Housing and Headstart Option 1 -Fuel Haul System"$179,800 Option 2 -Construct Pipeline from Tank Farm to Complex $122,000 Option 3 -Install New Self Diked Tank $148,700 Notes:(1)Costs for the haul system represent the cost to operate the system for 20 years, considering an anticipated 3%inflation rate and in 1997 dollars. These costs were prepared assuming that a gravel source will not be available in the immediate vicinity of the community.Based on our experience in other communities in the area,it is anticipated that gravel can be shipped to Chefornak and placed for no less than $60 per cubic yard, and the cost may be higher.Additionally,we have assumed that the geotechnical investigation will indicate that the installation of thermosyphons will not be required,since the existing tank farm has been located at the site for a number of years with no obvious or visible signs of significant Chefornak Bulk Fuel Upgrade December 12,1997 State Of Alaska,Division Of Energy 27 D&M Job No.37203-008-218 settlement problems.Ifthe geotechnical investigation indicates thermosyphons will be required, it is anticipated that they can be installed for a cost of approximately $150,000. Over the long term,hauling fuel to the Teacher's Housing and Headstart complex will likely be the most expensive option.Constructing a pipeline from the co-located tank farm to this area will likely be difficult and costly to maintain,with the potential for a major spill a concern.Therefore,it is recommended that Option 3,which includes installation of two new self-diked tanks west of the old elementary school,be implemented. Chefornak Bulk Fuel Upgrade December 12,1997StateOfAlaska,Division Of Energy 28 D&M Job No.37203-008-218 PHOTOGRAPHS Photo 2 Manifold piping and valves at City of Chefornak Tank Farm.Note use of hose within manifold piping. Photo 3 Header at barge fill point.The 3"lines have threaded joints and fittings. Photo 4 Aerial view of tank farms:#1 (City of Chefornak)and #2 (Chefarnrmute Corporation). The horizontal tanks at Tank Farm #2 are supported by a combination of small dimension wood and empty drums. Photo 5 raeediPane Nfty oteaPnbe ”. + roast mt "ate: "« a ho ae eae PSA inat. Small leak at water drawPhoto6 point at rear of Tank #8 at Tank Farm #2. Grrr ru .er peceenenenmnn :4 ; Photo 7 Chefarnrmute fill stand. at ORT LSPESOS GI5eeayers ve a ieee me:ae Sa le ee ies es hy”.wns baStSOEFeeh:ailia Photo 8 Distribution piping to fill stand tees from barge fill line.Note liberal use of hose. Photo 9 manifold piping throughout Rubber hose is used in the Tank Farm #2. Fuel dispensing pumps inside of fill stand shack.Note broken flow meter on left pump. Photo 10 ' t Behind Tank#2 TAK # esoekenA "a nm* irA,ty Distribution piping and pump near dike at Tank Farm #3. ee vas Photo 12 ./ bea ee tT Remnant; ED BAER RSOLN Stat" *eeseatetatetn eatatetyeu. te=Pe = &re td a = SoSve; Yuet & BaketOG SE2ye erat.ek| ages S2826.TAR,A e852 OSCESAOH aXe hs LeOBEN| PSB Sa SO OR) mas 05 %& wateNSosTNweyes = iE g e cm ae jaw \ . 7 Note exposed electrical lines with broken conduit near the center of the photo. Photo 13 Photo 14 Teacher's Housing/Headstart Tank Farm,LKSD (Tank Farm #4). Note leaning of tanks at Tank Farm #4. The top of the tanks are nearly touching. Photo 15 Manifold piping at Tank Farm #4.No flex connections are present to allow for differential movement. Pipe and connections are likely heavily stressed. .4 4 :7,:we MEsto"F yl Photo 16 Leaking distribution line under boardwalk at Tank Farm #4.A pit was dug beneath the leak and the pipe was covered with electrical tape. ood 4 we ating rcu,fax -walled older tank at National SinglePhoto17 Guard (Tank farm #5). RasimTES Ste&if ae § s-! . oo, af heenoeaSooo Photo 18.Double-walled newer tank at National Guard (Tank Farm #5). a .a.x asta,'wes Mita Bed EE eeaeetigaOrseKeteeTTS Photo 19 Agavok tank on tundra (Tank Farm #7). €-7 .-.e 7ieSieabtent:|cere a,4aS ep begtTSwteeS:vee gi te Mallhe<u.."Sa, te Photo 20 Miscellaneous tundra tanks.Over 30 tanks of varying size were scattered throughout the tundra near Tank Farms #1 and 2. FIGURES ANCHORAGE,AK 99518 Set |eOR 7?)pie SITE LOCATION MAP CITY OF CHEFORNAK -- UPGRADED BULK FUEL SOURCE:USGS TOPOGRAPHIC MAP VILLAGE OF CHEFORNAK TANK FARM SERIES,BAIRD INLET (A-6,A-7,1954)AGENT:LOCATED IN SECTIONS 19 &20,T 1N, 0 1MILE 2MiLE DAMES &MOORE R86 W,SEWARD MERIDIAN coer 5600 "B"STREET FIGO1.OWG FIGURE112DECEMBER1997 22> 24786 0G Tore ! Sony tr CoMigCo |TANK FARM g2 >> >CHEF ARNRMUTE CORPORATION 52 !PROPOSED LOCATION 6,i$76 a NEW TANK FAR ON ets &<"a & ¢>o FontgPoaead 3 XISTING TANK FARM As ;*0TANKFARM9)tT:CITY OF CHEFORNAK SCAL W FLTadMISTINGFILLSAND { >\|19)1 #76 .#7833-See, 5g PROPOSED PIPING ROUTE C cae OR TEACHER'S HOUSING OPTION §2 90.7 222 J)78.9 \7853 7 . s 4 .aspea"0 Ze7764Zea {| 470 W/A aney's Je Fi Oss 2.5 p83 "Saxe, PROPOSED PIPING ROUTE 'OR TEACHER'S HOUSING DATE:DRAWING INFORMATION -em STATE OF ALASKA DIVISION OF ENERGY =|_SWREVISIONSREVISIONS-?oa aSarcesNO.BY.]DATE DESCRIPTION INO]BY.|DATE DESCRIPTION DRAWING SCALE V"n209"iM CHEFORNAK BULK FUEL UPGRADE 37203-008-218INIT.|DATE :REVISION DESIGNED GY:==0 DRAWNC NO.DRAWN BY:----|GROUP |CHECKED BY:=_SITE VICINITY MAP FIG 2APPROVEDBY:----5400 "s*STREET ass FILE:SHT.OWG aCe)wo oD |PROPOSED FENCED08'TANK FARM SEE FIGURE 4 N wo MOTatv NewS" FALL LINEexfsti FILL LINESo,NEW 3°®GASOLINE wa N NM g ."POWER 110 REUAN.7)4.A \SNNye SY o” SS) & NEW 2"6 DIESEL PIPEUNE TO HIGHSCHOOL GAY T. NEW BARGE 'FILLCONNECTIONPOINTS ot 2 "Sey 8SotSet !90,Ségt226auFP62$8ia2Ov,tuo,QPSOwis\S$S4uo6)Qouo,cS0x67&-N Z T \-exisninc oe.2°Sas |IN 7 0 POWER STATION iNZesmaOoa scaC\eBESa7|F]ag/NPS BY)Ly 5 o = o *.-SL CTE ane s REVISIONS DRAWING INFORMATION Onn STATE OF ALASKA DIVISION OF ENERGY TE occewece 1997 FER'REVISION VISION=Te NG.|BY.|DATE DESCRIPTION INo.]By.[DATE DESCRIPTION ORAWING SCALE P=t00"CHEFORNAK BULK FUEL UPGRADE *J7203-008-218INIT.OATE SN OESIGNEO BY:---_ ci DRAWN BY:--=F GROUP *|H SITE PLAN 1 DRAWING NO. CHECKED BY:---- APPROVED BY:_=seco "W"Smert CO-LOCATED TANK FARM FIG 3 FILE:S1T.OWG ba =(907)362-5966 LEGEND: EXISTING TANK C) 270° FUTURE WTP TANK 7 | ; S/27 7 7SPROPOSEDTANKC)CITY CORPORATION HIGH SCHOOL Lo i FUTURETANK {|!@©|||EfDIESELFILL-DF 1)5 D .GASOLINE FILL-GF Coe)Coe)Sllo |} DIESEL SUPPLY -DS ILIG 40K GASOLINE SUPPLY -- |10 ©), Fa ng)JTOcty-/,"ye TO CHEF.CORP.|[+ FILL STAND DUAL PRODUCT_/NOTES:PROPOSED TANK FARM " TO SCHOOL DISPENSING TANK NOT TO SCALE FILL LINES ARE 3 6°CELLULAR CONFINEMENT GRI NFS LINER COVER MATERIAI SUPPLY LINES ARE 2” CELLULAR CONFINEMENT GRID ANCHOR NFS LINER COVER MATERIAL. EXISTING GRADE ae SSSISPSTSSS SSS SSDS SS ZRCONE"&EEEon NON-WOVEN.GEOTEXTILE SECONDARY MEMBRANEWOVENGEOTEXPRIMARYMEMBRANELINER:\oan armen,SECONDARY MEMBRANE LINER NON-WOVEN GEOTEXTILE WOVEN GEOTEXTILE NON-WOVEN GEOTEXTILE 4”RIGID INSULATION 4°RIGID INSULATION EARTHEN EXTERNAL CONTAINMENT DIKE DETAIL EARTHEN INTERNAL CONTAINMENT DIKE DETAILNOTTOSCALENOTTOSCALE DAMES &MOORE DATE: DRAWING INFORMATION STATE OF ALASKA DIVISION OF ENERGY =|_SUSE WYsereretsNOLBY.DATE SS SaPTON SE ROTO DRAWING SCALE none CHEFORNAK BULK FUEL UPGRADE ee treos-008-218 INtT.DATE REMSION OESIGNED By: --0 ORAWN BY:=-==SITE PLAN 2 DRAWING KO. CHECKED BY:==CO-LOCATED TANK FARM FIG 4APPROVEDBY:---- FILE:SHTLLOWG SCALE00FEET mNEW BARGE FILL CONNECTION POINT i W500 GALLON ) [_NEW 3°PIRELINE NEW 300 GALLON ae ALLED 75 0|'FROM BARGE SQNNECTION ABOVEGROUND-DAY GEN.TING 3°@ PIPELINE NEW 300 GALLONABOVEGROUNDDAY |__//SHED |a 5He/?2 TEACHER--4---]__f---------4------ VQ HOUSIN OO NEW 3°¢APIPELINE -Z oo EXISTING TANK aRNEW2”¢|HEADSTART TO BE DEMOLISHEDISTRIBUTION A 75,/ PIPELINE yw Po||STORAGE ------.,L..|10"SECURITY.EENCE7?4 1.78.9 N al VEGROUND 10,000 Decy ALLON SELF-DIKED FUEL [| TANKS (O a)Q [SEHERENGES STSONS SEWSGNE DRAWING INFORMATION DAMES E MOORE |STATE OF ALASKA DIVISION OF ENERGY |v occauees s0a7WMENO.]BY.]OATE DESCRIPTION INO.[BY...OATE DESCRIPTION DRAWING SCALE 1"=40"CHEFORNAK BULK FUEL UPGRADE tor03-coe-218wT.|_DATE RVR DESIGNED BY:==:0 ---SITE PLAN 3 CaN WOcecnteor=--,MEX |TEACHER'S HOUSING,HEADSTART |” APPROVED BF ==so meet TANK FARM FIG 5 FILE:SHTOWG bed ter ee APPENDIX A TITLE SEARCH INFORMATION APPENDIX B PRELIMINARY COST ESTIMTES Preliminary Cost Estimate Summary for Chefornak,Alaska Project:Chefornak Bulk Fuel Upgrade and Work Order No:DM-97-008 Site Inspection D &M Project No:37203-008-218 Location:Chefornak,Alaska Date Prepared:12/12/1997 Basis:Force Account Construction Estimator:GRB /BFS CITY OF CHEFORNAK CATEGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL DESCRIPTION cost!WEIGHT COST ?cost?COST A TANK FARM PAD*°$52,655 20,802 $7,281 $34,399 $94,334 B TANKS $29,800 2,200 $770 $25,550 $56,120 Cc MANIFOLD $24,020 3,253 $1,139 $2,693 $27,851 D MISCELLANEOUS'*?$37,650 950 $333 $0 $37,983 COMPONENT TOTALS $144,125 27205 Ib $9,522 $62,641 $216,288 TOTAL DIRECTS:$216,288 PROJECT CONSTRUCTION COSTS PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$12,977 CONTINGENCY (20%):$43,258 REGULATORY PLANS:$5,000 $277,523 CHEFARNRMUTE CORPORATION CATEGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL DESCRIPTION cost 'WEIGHT COST'CosT?COST A TANK FARM PAD*”$137,122 54195 $18,968 $89,838 $245,928 B TANKS $142,500 50700 $17,745 $73,450 $233,695 Cc MANIFOLD $39,671 9485 $3,320 $7,409 $50,399 D DISPENSING STATION $68,460 32043 $11,215 $20,100 $99,775 E MISCELLANEOUS”®?$99,400 950 $333 $0 $99,733 COMPONENT TOTALS $487,153 147372 Ib $51,580 $190,797 $729,530 TOTAL DIRECTS:$729,530 PROJECT CONSTRUCTION COSTS PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$43,772 CONTINGENCY (20%):$145,906 REGULATORY PLANS:$5,000 $924,207 LOWER KUSKOKWIM SCHOOL DISTRICT CATEGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL DESCRIPTION cost!WEIGHT cost?cost?COST A TANK FARM PAD*”$102,271 40,368 $14,129 $66,981 $183,380 B TANKS $25,100 1,100 $385 $21,300 $46,785 Cc MANIFOLD $23,308 3,988 $1,396 $3,593 $28,297 D MISCELLANEOUS”*?$52,000 950 $333 $0 $52,333 COMPONENT TOTALS $202,679 46406 Ib $16,242 $91,874 $310,795 TOTAL DIRECTS:$310,795 PROJECT CONSTRUCTION COSTS PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$18,648 CONTINGENCY (20%):$62,159 REGULATORY PLANS:$5,000 $396,601 Page |of 13 CFRNKCST.gb 915/97 Preliminary Cost Estimate Summary for Teacher's Housing/Headstart Options Project:Chefornak Bulk Fuel Upgrade and Work Order No:DM-97-008 Site Inspection D &M Project No:37203-008-218 Location:Chefornak,Alaska Date Prepared:12/12/1997 Basis:Force Account Construction Estimator:GRB /BFS OPTION 1 -MANUAL FUEL TRANSPORT CATEGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL DESCRIPTION cost!WEIGHT COST ?cost ?COST A TANKS $7,250 2,270 $795 $14,500 $22,545 B MISCELLANEOUS $6,464 0 $0 $0 $6,464 Cc FUEL TRANSPORTATION9 $14,877 0 $0 $135,250 $150,127 COMPONENT TOTALS $28,591 2270 Ib $795 $149,750 $179,136 TOTAL DIRECTS:$179,136 PROJECT CONSTRUCTION COSTS PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$10,748 CONTINGENCY (20%):$35,827 REGULATORY PLANS:$5,000 $230,711 OPTION 2 -PIPELINE FROM CO-LOCATED TANK FARM CATEGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL DESCRIPTION cost!WEIGHT COST ?”cost?COST A TANKS $7,250 2,270 $795 $14,500 $22,545 B MISCELLANEOUS $23,460 23,958 $8,385 $23,435 $55,280 Cc FUEL TRANSPORTATION9S $15,040 0 $0 $0 $15,040 COMPONENT TOTALS $45,750 26228 Ib $9,180 $37,935 $92,864 TOTAL DIRECTS:$92,864 PROJECT CONSTRUCTION COSTS PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$5,572 CONTINGENCY (20%):$18,573 REGULATORY PLANS:$5,000 $122,009 OPTION 3 -NEW TANK FARM CATEGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL DESCRIPTION cost!WEIGHT Cost?cosT?COST A TANKS $70,400 39,070 $13,675 $25,800 $109,875 B PIPE &APPURTENANCES $13,793 8,496 $2,974 $7,764 $24,530CcMISCELLANEOUS$14,280 0 $0 $0 $14,280 COMPONENT TOTALS $98,473 47566 Ib $16,648 $33,564 $148,684 TOTAL DIRECTS:$148,684 PROJECT CONSTRUCTION COSTS PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$8,921 CONTINGENCY (20%):$29,737 REGULATORY PLANS:$5,000 $192,342 Page 2 of 13 Cfrnkest 915/97 Preliminary Cost Estimate Assumptions for Chefornak,Alaska .. ASSUMPTIONS USED IN PRELIMINARY COST ESTIMATE 1 MATERIAL UNIT COSTS INCLUDE LABOR WHERE NO LABOR COSTS ARE GIVEN. 2 FREIGHT COSTS ARE CALCULATED AT $35 PER 100 WEIGHT IN THE SUMMARY TABLE. NOTE,HOWEVER,THAT THESE FREIGHT COSTS ARE NOT INCLUDED IN THE LINE ITEM VALUES. 3 LABOR ESTIMATES ARE BASED ONA 4 PERSON CREW,WORKING 10-HOUR DAYS AT $35/HOUR ON AVERAGE. A CONSTRUCTION MANAGER,WELDER,AND ONE SKILLED LABORER FROM OUTSIDE THE LOCAL AREA WILL BE USED.ALL OTHERS WILL BE LOCAL HIRE. DISPOSAL OF EXCAVATED MATERIAL WILL BE AT NO COST OTHER THAN EQUIPMENT,LABOR,AND FUEL. NFS GRAVEL COSTS INCLUDES $25/CY MATERIAL COSTS,$10/CY PLACEMENT,$15/CY FOR EXCAVATION AND HAULING,AND $25/CY FOR FREIGHT (ADDED TO MATERIAL COST). 6 BARGE FILL LINE COSTS WERE ALLOCATED TO THE VARIOUS TANK FARMS PROPORTIONALLY . ACCORDING TO USE (2/3 TO CORPORATION,1/6 TO CITY,AND 1/6 TO SCHOOL). 7 PER DIEM AND HOUSING ESTIMATES ARE BASED ON AN ASSUMED LENGTH OF CONSTRUCTION: (CITY -45 DAYS,CORPORATION -120 DAYS,AND SCHOOL -60 DAYS). 8 MOBILIZATION /DEMOBILIZATION INCLUDES ROUND TRIP AIR FARE FOR NON-LOCAL WORKERS. CONSTRUCTION EQUIPMENT IS ASSUMED TO BE RENTED AT $75 PER HOUR. Page 3 of 13 CFRNKCST.gb 9/5/97 Preliminary Cost Estimate Line Items for the City of Chefornak -Chefornak,Alaska TANK FARM PAD 1 |Unclassified Excavation '165 CY 0.00 0.00 0.00 0 35.00 5,775.00 35.00 5,775.00 2 |NFS Gravel Fill°477}CY 50.00 23,850.00 0.00 0 25.00 11,925.00 75.00 35,775.00 3 |6”Cellular Confinement Grid 1,475 SF 3.00 4,425.00 1.00 1,475 0.80 1,180.00 3.80 5,605.00 4 [Insulation 3,875 SF 0.72 2,790.00 1.00 3,875 0.50 1,937.50 1.22 4,727.50 5 |Non-woven Geotextiles 7,000 SF 0.60 4,200.00 0.41 2,870 0.50 3,500.00 1.10 7,700.00 6 |Woven Geotextile 4,650 SF 0.60 2,790.00 0.41 1,907 0.50 2,325.00 1.10 5,115.00 7 |Secondary membrane 3,875 SF 1.20 4,650.00 1.00 3,875 0.75 2,906.25 1.95 7,556.25 8 [Primary Membrane Liner 3,500 SF 1.30 4,550.00 1.75 6,125 1.00 3,500.00 2.30 8,050.00 9 |10'Chain Link Fence 135 LF 40.00 5,400.00 5.00 675 10.00 1,350.00 50.00 6,750.00 $52,655 20,802 LB $34,399 $87,054 TANKS 10 |New 14,000-gallon Tank I EA 15,000.00 15,000.00 8,000.00 8,000 2,000.00 2,000.00 17,000.00 17,000.00 11 |Refurbish Existing Tanks 4 EA 2,000.00 8,000.00 0.00 0 2,000.00 8,000.00 4,000.00 16,000.00 12 |Relocating Existing Tanks EA 0.00 0.00 ,0.00 (¢)1,800.00 7,200.00 1,800.00 7,200.00 13 |Painting Existing Tanks (4 tanks)2,800 SF 5.00 14,000.00 100.00 100 3.00 8,400.00 8.00 22,400.00 14 {Saddles for Horizontal Tanks 1 EA 2800.00 2,800.00 350.00 100 350.00 350.00 3,150.00 3,150.00 15 |Tank Foundations 4 EA 1250.00 5,000.00 500.00 2,000 400.00 1,600.00 1,650.00 6,600.00 $29,800 2,200 LB $25,550 $55,350 Page 4 of 13 CFRNKCST.gb 12/12/97 Preliminary Cost Estimate Line Items for the City of Chefornak -Chefornak,Alaska PIPELINES AND APPURTENANCES 16 |2"A106B sch 80 Coated Steel Pipe 50 LF 4.00 200.00 5.00 250 5.65 282.50 9.65 482.50 17 13"A106B sch 80 Coated Steel Pipe 100 LF 6.82 682.00 10.25 1,025 8.15 815.00 14,97 1,497.00 18 |3"Ball Valves 12 EA 520.00 6,240.00 65.00 780 50.00 600.00 570.00 6,840.00 19 |2"Ball Valves 2 EA 290.00 $80.00 45.00 90 20.00 40.00 310.00 620.00 20 3”Flex Fitting 10 EA 125.00 1,250.00 20.00 200 17.50 175.00 142.50 1,425.00 21 |3"4-Way Connection 1 EA 22.73 22.73 15.00 15 40.00 40.00 62.73 62.73 22 |2"Welded 90 Degree Elbow EA 5.20 31.20 8.00 48 40.00 240.00 45.20 271.20 23 13"Welded 90 Degree Elbow EA 6.25 31.25 10.00 50 40.00 200.00 46.25 231.25 24 |3"T Connections EA 10.90 32.70 15.00 45 20.00 60.00 30.90 92.70 25 |Timber Pipe Supports 30 EA 15.00 450.00 20.00 600 8.00 240.00 23.00 690.00 26 |Electrical Service 1]LSUM 10,000.00 10,000.00 0.00 0 0 0.00 10,000.00 10,000.00 27 |Barge Fill Lines®1}LSUM 4,500.00 4,500.00 150.00 150 0.00 0.00 4,500.00 4,500.00 $24,020 3,253 LB $2,693 $26,712 MISCELLANEOUS COSTS 28 |Crew Per Diem'135]MD's 45.00 6,075.00 0.00 0 0.00 0.00 45.00 6,075.00 29 |Crew Housing ”135]MD's 45.00 6,075.00 0.00 0 0.00 0.00 45.00 6,075.00 30 |Mobilization/Demobilization*1}LSUM 3,000.00 3,000.00 0.00 0 0.00 0.00 3,000.00 3,000.00 31 |Equipment Repair 1!LSUM 3,000.00 3,000.00 0.00 0 0.00 0.00 3,000.00 3,000.00 32 |Welder Rental 45 Day 50.00 2,250.00 750.00 750 0.00 0.00 50.00 2,250.00 33 |Four Wheeler Rental 45 Day 50.00 2,250.00 0.00 0 0.00 0.00 50.00 2,250.00 34 |Equipment Rental?1}LSUM 15,000.00 15,000.00 200.00 200 0.00 0.00 15,000.00 15,000.00 $37,650 950 LB $37,650 Page 5 of 13 CFRNKCST.gb 12/12/97 Preliminary Cost Estimate Line Items for the Chefarnrmute Corporation -Chefornak,Alaska A TANK FARM PAD 1 [Unclassified Excavation *435 CY 0.00 0.00 0.00 0 35.00 15,225.00 35.00 15,225.00 2 |NFS Gravel Fill *1,245 CY 50.00 62,250.00 0.00 0 25.00 31,125.00 75.00 93,375.00 3 |6"Cellular Confinement Grid 3,860 SF 3.00 11,580.00 1.00 3,860 0.80 3,088.00 3.80 14,668.00 4 }Insulation 10,100 SF 0.72 7,272.00 1.00 10,100 0.50 5,050.00 )1.22 12,322.00 5 |Non-woven Geotextiles 18,200 SF 0.60 10,920.00 0.41 7,462 0.50 9,100.00 1.10 20,020.00 6 |Woven Geotextile 12,250 SF 0.60 7,350.00 0.41 5,023 0.50 6,125.00 1.10 13,475.00 7 {Secondary membrane 10,100 SF 1.20 12,120.00 1.00 10,100 0.75 7,575.00 1.95 19,695.00 8 |Primary Membrane Liner 9,100 SF 1.30 11,830.00 1.75 15,925 1.00 9,100.00 2.30 20,930.00 9 |10'Chain Link Fence 345 LF 40.00 13,800.00 5.00 1,725 10.00 3,450.00 50.00 17,250.00 $137,122 54,195 LB $89,838 $226,960 B TANKS 10 |New Tanks 7 EA 8,000.00 $6,000.00 6,500.00 45,500 1,800.00 12,600.00 9,800.00 68,600.00 11 |Refurbish Existing Tanks 10 EA 1,400.00 14,000.00 0.00 0 1,400.00 14,000.00 2,800.00 28,000.00 12 |Relocating Existing Tanks 10 EA 0.00 0.00 0.00 0 1,400.00 14,000.00 1,400.00 14,000.00 13 |Painting Existing Tanks (10 tanks)9,200 SF 5.00 46,000.00 100.00 100 3.00 27,600.00 8.00 73,600.00 14 |Saddles for Horizontal Tanks 5 EA 2800.00 14,000.00 350.00 100 350.00 1,750.00 3,150.00 15,750.00 1S {Tank Foundations 10 EA 1250.00 12,500.00 500.00 5,000 350.00 3,500.00 1,600.00 16,000.00 $142,500 50,700 LB $73,450 $215,950 Page 6 of 13 CF cST.,-12/1... Preliminary Cost Estimate Line Items for the Chefarnrmute Corporation -Chefornak,Alaska Cc PIPELINES AND APPURTENANCES 16 ]2”A106B sch 80 Coated Steel Pipe 200 LF 4.00 800.00 5.00 1,000 5.65 1,130.00 9.65 1,930.00 17 |3"A106B sch 80 Coated Steel Pipe 325 LF 6.82 2,216.50 10.25 3,331 8.15 2,648.75 14.97 4,865.25 18 ]3"Ball Valves 24 EA 520.00 12,480.00 65.00 1,560 50.00 1,200.00 570.00 13,680.00 19 |2"Ball Vaives 7 EA 290.00 2,030.00 45.00 315 20.00 140.00 310.00 2,170.00 20 |3"Flex Fitting 20 EA 125.00 2,500.00 20.00 400 17.50 350.00 142.50 2,850.00 21 |Internal Emergency Shut Off 2 EA 140.00 280.00 25.00 50 20.00 40.00 160.00 320.00 22 |3"4-Way Connection 2 EA 22.73 45.46 15.00 30 40.00 80.00 62.73 125.46 23 |2"Welded 90 Degree Elbow 13 EA 5.20 67.60 8.00 104 40.00 520.00 45.20 587.60 24 13"Welded 90 Degree Elbow 13 EA 6.25 81.25 10.00 130 40.00 520.00 46.25 601.25 25 |3"T Connections 11 EA 10.90 119.90 15.00 165 20.00 220.00 30.90 339.90 26 |Timber Pipe Supports 70 EA 15.00 1,050.00 20.00 1,400 8.00 560.00 23.00 1,610.00 27 |Barge Fill Lines'1]LSUM 18,000.00 18,000.00 1,000.00 1,000 0.00 0.00 18,000.00 18,000.00 $39,671 9,485 LB $7,409 $47,079 D__|DISPENSING STATION 28 |4000 gal.Dual Prod.Dist.Tank 1 EA 22,100.00 22,100.00 25,800.00 25,800 1,000.00 1,000.00 23,100.00 23,100.00 29 |Tank Pump,Pipe,and Appurtenances 1]LSUM 8,300.00 8,300.00 4,500.00 4,500 4600 4,600.00 12,900.00 12,900.00 30 |Excavation 100 cY 0.00 0.00 0.00 0 35.00 3,500.00 35.00 3,500.00 31 |NFS Gravel Fill 250 CY 50.00 12,500.00 0.00 0 25.00 6,250.00 75.00 18,750.00 32 |Non-woven Geotextiles 500 SY 0.72 360.00 0.41 205 0.50 250.00 1.22 610.00 33 |Primary Membrane Liner 250 SY 10.80 2,700.00 1.75 438 10.00 2,500.00 20.80 5,200.00 34 |Dispenser Structure 1]LSUM 2,500.00 2,500.00 1,000.00 1,000 2000 2,000.00 4,500.00 4,500.00 35 |Electrical Service 1{LSUM 10,000.00 10,000.00 0.00 0 0 0.00 10,000.00 10,000.00 36 |Electrical Controls 1}LSUM 5,000.00 5,000.00 100.00 100 0 0.00 5,000.00 5,000.00 37 |Mechanical System 1 LSUM 5,000.00 5,000.00 0.00 0 0.00 0.00 5,000.00 5,000.00 $68,460 32,043 LB $20,100 $88,560 E MISCELLANEOUS COSTS 38 |Crew Per Diem 7 360 MD's 45.00 16,200.00 0.00 0 0.00 0.00 45.00 16,200.00 39 |Crew Housing 7 360 MD's 45.00 16,200.00 0.00 0 0.00 0.00 45.00 16,200.00 40 |Mobilization/Demobilization*1]LSUM 7,500.00 7,500.00 0.00 0 0.00 0.00 7,500.00 7,500.00 41 |Equipment Repair 1 LSUM 7,500.00 7,500.00 0.00 0 0.00 0.00 7,500.00 7,500.00 §2 |Welder Rental 120 Day 50.00 6,000.00 750.00 750 0.00 0.00 50.00 6,000.00 53 |Four Wheeler Rental 120 Day 50.00 6,000.00 0.00 0 0.00 0.00 50.00 6,000.00 54 |Equipment Rental”1)LSUM 40,000.00 40,000.00 200.00 200 0.00 0.00 40,000.00 40,000.00 $99,400 950 LB $99,400 Page 7 of 13 CFRNKCST.gb 12/12/97 Preliminary Cost Estimate Line Items for the High School (LKSD)-Chefornak,Alaska TANK FARM PAD 1 |Unclassified Excavation '325 CY 0.00 0.00 0.00 0 35.00 11,375.00 35.00 11,375.00 2 |NES Gravel Fill *928 cY 50.00 46,400.00 0.00 0 25.00 23,200.00 75.00 69,600.00 3 |6"Cellular Confinement Grid 2,875 SF 3.00 8,625.00 1.00 2,875 0.80 2,300.00 3.80 10,925.00 4 |Insulation 7,525 SF 0.72 5,418.00 1.00 7,525 0.50 3,762.50 1.22 9,180.50 5 |Non-woven Geotextiles 13,550 SF 0.60 8,130.00 0.41 5,556 0.50 6,775.00 1.10 14,905.00 6 |Woven Geotextile 9,100 SF 0.60 5,460.00 0.41 3,731 0.50 4,550.00 1.10 10,010.00 7 {Secondary membrane 7,525 SF 1.20 9,030.00 1.00 7,525 0.75 5,643.75 1.95 14,673.75 8 |Primary Membrane Liner 6,775 SF 1.30 8,807.50 1.75 11,856 1.00 6,775.00 2.30 15,582.50 9 |10'Chain Link Fence 260 LF 40.00 10,400.00 5.00 1,300 10.00 2,600.00 50.00 13,000.00 $102,271 40,368 LB $66,981 $169,252 TANKS 10 |Refurbish Existing 40k-gallonTanks 2 EA 2,800.00 5,600.00 0.00 i)2,800.00 5,600.00 5,600.00 11,200.00 11 |Relocating Existing Tanks 2 EA 0.00 0.00 0.00 0 2,800.00 5,600.00 2,800.00 5,600.00 12 |Painting Existing Tanks (2 tanks)2,700 SF 5.00 13,500.00 100.00 100 3.00 8,100.00 8.00 21,600.00 13 {Tank Foundations 2 EA 3000.00 6,000.00 500.00 1,000 1,000.00 2,000.00 4,000.00 8,000.00 $25,100 1,100 LB $21,300 $46,400 Page 8 of 13 CFRNKCST.gb 12/12/97 Preliminary Cost Estimate Line Items for the High School (LKSD)-Chefornak,Alaska PIPELINES AND APPURTENANCES 14 |2"A106B sch 80 Coated Steel Pipe 250 LF 4.00 1,000.00 5.00 1,250 5.65 1,412.50 9.65 2,412.50 15 [3"A106B sch 80 Coated Steel Pipe 100 LF 6.82 682.00 10.25 1,025 8.15 815.00 14.97 1,497.00 16 13"Ball Valves 8 EA 520.00 4,160.00 65.00 520 50.00 400.00 570.00 4,560.00 17 |2”Ball Valves 6 EA 290.00 1,740.00 45.00 270 20.00 120.00 310.00 1,860.00 18 )3"Flex Fitting 6 EA 125.00 750.00 20.00 120 17.50 105.00 142.50 855.00 19 }2”Welded 90 Degree Elbow 6 EA 5.20 31.20 8.00 48 40.00 240.00 45.20 271.20 20 13"Welded 90 Degree Elbow 6 EA 6.25 37.50 10.00 60 40.00 240.00 46.25 277.50 21 43°T Connections 3 EA 10.90 32.70 15.00 45 20.00 60.00 30.90 92.70 22 {Timber Pipe Supports 25 EA 15.00 375.00 20.00 500 8.00 200.00 23.00 575.00 23 |Electrical Service 1]LSUM 10,000.00 10,000.00 0.00 0 0 0.00 10,000.00 10,000.00 24 |Barge Fill Lines®1]LSUM 4,500.00 4,500.00 150.00 150 0.00 0.00 4,500.00 4,500.00 $23,308 3,988 LB $3,593 $26,901 MISCELLANEOUS COSTS 25 |Crew Per Diem '200}MD's 45.00 9,000.00 0.00 0 0.00 0.00 45.00 9,000.00 26 |Crew Housing '200]MD's 45.00 9,000.00 0.00 0 0.00 0.00 45.00 9,000.00 27 |Mobilization/Demobilization*1]LSUM 4,000.00 4,000.00 0.00 0 0.00 0.00 4,000.00 4,000.00 28 jEquipment Repair 1}LSUM 4,000.00 4,000.00 0.00 0 0.00 0.00 4,000.00 4,000.00 29 |Welder Rental 60 Day 50.00 3,000.00 750.00 750 0.00 0.00 50.00 3,000.00 30 |Four Wheeler Rental 60 Day 50.00 3,000.00 0.00 0 0.00 0.00 50.00 3,000.00 31 jEquipment Rental?1]LSUM 20,000.00 20,000.00 200.00 200 0.00 0.00 20,000.00 20,000.00 $52,000 950 LB $52,000 Page 9 of 13 CFRNKCST.gb 12/12/97 Preliminary Cost Estimate Assumptions for Teacher's Housing/Headstart Options ASSUMPTIONS USED IN PRELIMINARY COST ESTIMATE MATERIAL UNIT COSTS INCLUDE LABOR WHERE NO LABOR COSTS ARE GIVEN. 2 FREIGHT COSTS ARE CALCULATED AT $35 PER 100 WEIGHT IN THE SUMMARY TABLE. NOTE,HOWEVER,THAT THESE FREIGHT COSTS ARE NOT INCLUDED IN THE LINE ITEM VALUES. 3 LABOR ESTIMATES ARE BASED ON A 4 PERSON CREW,WORKING 10-HOUR DAYS AT $35/HOUR ON AVERAGE. A CONSTRUCTION MANAGER,WELDER,AND ONE SKILLED LABORER FROM OUTSIDE THE LOCAL AREA WILL BE USED.ALL OTHERS WILL BE LOCAL HIRE. 4 DISPOSAL OF EXCAVATED MATERIAL WILL BE AT NO COST OTHER THAN EQUIPMENT,LABOR,AND FUEL. 5 NFS GRAVEL COSTS INCLUDES $25/CY MATERIAL COSTS,$10/CY PLACEMENT,$15/CY FOR EXCAVATION AND HAULING,AND $25/CY FOR FREIGHT (ADDED TO MATERIAL COST). 6 CONSTRUCTION SCHEDULES BASED ON LABOR ASSUMPTIONS GIVEN IN 3 ABOVE. MOBILIZATION /DEMOBILIZATION INCLUDES ROUND TRIP AIR FARE FOR NON-LOCAL WORKERS. PER DIEM AND HOUSING ESTIMATES ARE BASED ON AN ASSUMED LENGTH OF CONSTRUCTION: (OPTION |-7 DAYS,OPTION 2 -20 DAYS,AND OPTION 3 -15 DAYS). 9 FUEL TRANSPORTATION COSTS BASED ON THE FOLLOWING: (A)ANNUAL FUEL TRANSPORT TO THE SITE IS 20,000 GALLONS OF HEATING FUEL (B)FUEL TRANSPORT RATE OF 55 GAL/HR USING 4-WHEELER (C)LOCAL HIRE LABOR RATE OF $25/HR. (D)EQUIPMENT COSTS (4-WHEELER,TRAILER,AND FUEL DRUMS)OF $1,000/YR. (E)20 YEAR PLAN PERIOD (F)3%ANNUAL INTEREST RATE Page 10 of 13 Cfimkest 9/5/97 Preliminary Cost Estimate Line Items for Teaches Option 1 -Manual Fuel Trans Fron Doubleciespoesiatheyefroo Vidtyf,a TANK COSTS 1 [Install New 300 Gallon Day Tanks 3 EA 750.00 2,250.00 2 3,000.00 1,750.00 5,250.00 2 [Install New 500 Gallon Day Tank 1 EA 1,250.00 1,250.00 1,400:1,500.00 2,750.00 2,750.00 3 |Demolition of Existing Tank Farm 1}LSUM 0.00 0.00 "o00||10,000.00T°10,000.00 10,000.00 10,000.00 $3,500 2,270 $14,500 $18,000 MISCELLANEOUS COSTS 4 |Crew Per Diem °21}MD's 42.00 882.00 0.00 0 0.00 0.00 42.00 882.00 5 |Crew Housing ©21}MD's 42.00 882.00 0.00 0 0.00 0.00 42.00 882.00 6 |Equipment Repair 1]LSUM 1,000.00 1,000.00 0.00 0 0.00 0.00 1,000.00 1,000.00 7 |Mobilization/Demobilization”1]LSUM 1,000.00 1,000.00 0.00 0 0.00 0.00 1,000.00 1,000.00 8 |Welder Rental 7 Day 50.00 350.00 750.00 0 0.00 0.00 50.00 350.00 9 |Four Wheeler Rental 7 Day 50.00 350.00 0.00 0 0.00 0.00 50.00 350.00 10 [Equipment Rental®1]LSUM 2,000.00 2,000.00 200.00 0 0.00 0.00 2,000.00 2,000.00 $6,464 Oo LB $6,464 MANUAL FUEL TRANSPORT COSTS 11 GALLONS 55 364 25.00 9,091 $1,000]$10,091 3.00 14.88 $150,127 Cfrnkest Page 11 of 13 12/15/97 Preliminary Cost Estimate Line Items for Teacher's Housing/Headstart Option 2 -Pipeline from Co-Located Tank Farm TANKS AT BIA SITE 1 |Installi New 300 Gallon Day Tanks 3 EA 750.00 2,250.00 290.00 870 1,000.00 3,000.00 1,750.00 5,250.00 2 [Install New 500 Gallon Day Tank 1 EA 1,250.00 1,250.00 1,400.00 1,400 1,500.00 1,500.00 2,750.00 2,750.00 3 |Demolition of Existing Tank Farm 1}LSUM 0.00 0.00 0.00 0 10,000.00 10,000.00 10,000.00 10,000.00 $3,500 2,270 LB $14,500 $18,000 PIPELINES AND APPURTENANCES 4 |2"Above Grade Diesel 3,000 LF 4.00 12,000.00 5.00 15,000 5.65 16,950.00 9.65 28,950.00 5 {2"Ball Valves 12 EA 290.00 3,480.00 45.00 540 20.00 240.00 310.00 3,720.00 6 |2"Pressure Relief Valve 1 EA 1,000.00 1,000.00 100.00 100 20.00 20.00 1,020.00 1,020.00 7 |2"Welded 90 Degree Elbow 20 EA 5.20 104.00 8.00 160 40.00 800.00 45.20 904.00 8 |2"Welded 45 Degree Elbow EA 8.55 25.65 12.50 38 40.00 120.00 48.55 145.65 9 |2”Flex Fitting EA 125.00 750.00 20.00 120 17.50 105.00 142.50 855.00 10 |Timber Pipe Supports 300 EA 15.00 4,500.00 20.00 6,000 8.00 2,400.00 23.00 6,900.00 11 {Boardwalk Crossings 8 EA 200.00 1,600.00 250.00 2,000 350.00 2,800.00 550.00 4,400.00 $23 ,460 23,958 LB $23,435 $46,895 MISCELLANEOUS COSTS 12 |Crew Per Diem °60)MD's 42.00 2,520.00 0.00 0 0.00 0.00 42.00 2,520.00 13 |Crew Housing °60)MD's 42.00 2,520.00 0.00 0 0.00 0.00 42.00 2,520.00 14 |Equipment Repair 1}LSUM 2,000.00 2,000.00 0.00 0 0.00 0.00 2,000.00 2,000.00 15 |Mobilization/Demobilization '1]LSUM 2,000.00 2,000.00 0.00 0 0.00 0.00 2,000.00 2,000.00 16 |Welder Rental 20 Day 50.00 1,000.00 750.00 0 0.00 0.00 50.00 1,000.00 17 |Four Wheeler Rental 20 Day 50.00 1,000.00 0.00 0 0.00 0.00 50.00 1,000.00 18 |Equipment Rental'1{LSUM 4,000.00 4,000.00 200.00 0 0.00 0.00 4,000.00 4,000.00 $15,040 0 LB $15,040 Cfrnkcest Page 12 of 13 12/15/97 Preliminary Cost Estimate Line Items for Teacher's Housing/Headstart Option 3 -New Tank Farm MATER]OR: TANKS AT BIA SITE . 1 {Install New 10000 Gallon Diked Tanks 2 EA 24,000.00 48,000.00 17,000.00 34,000 2,000.00 4,000.00 26,000.00 52,000.00 2 |Install New 300 Gallon Day Tanks 3 EA 750.00 2,250.00 290.00 870 1,000.00 3,000.00 1,750.00 5,250.00 3 |Install New 500 Gallon Day Tank 1 EA 1,250.00 1,250.00 1,400.00 1,400 1,500.00 1,500.00 2,750.00 2,750.00 4 10'Chain Link Fence 160 LF 40.00 6,400.00 5.00 800 10.00 1,600.00 50.00 8,000.00 5 |Earth Work and Geotextiles*?1]LSUM 10,000.00 10,000.00 1,000.00 1,000 5,000.00 5,000.00 15,000.00 15,000.00 6 \Tank Foundations 2 EA 1250.00 2,500.00 500.00 1,000 350.00 700.00 1,600.00 3,200.00 7 |Demolition of Existing Tank Farm 1 LSUM 0.00 0.00 0.00 0 10,000.00 10,000.00 10,000.00 10,000.00 $70,400 39,070 $25,800 $96,200 PIPELINES AND APPURTENANCES 8 |Barge Fill Connection &Containment 1}LSUM 1,200.00 1,200.00 500.00 500 500.00 500.00 1,700.00 1,700.00 9 }3"Above Grade Diesel Barge Fill 250 LF 6.82 1,705.00 10.25 2,563 8.15 2,037.50 14.97 3,742.50 10 {2"Above Grade Diesel 500 LF 4.00 2,000.00 5.00 2,500 5.65 2,825.00 9.65 4,825.00 11 |2"Ball Valves 10 EA 290.00 2,900.00 45.00 450 20.00 200.00 310.00 3,100.00 12 |3"Ball Valves 10 EA 290.00 2,900.00 45.00 450 20.00 200.00 310.00 3,100.00 13 }3"Check Valve 1 EA 310.00 310.00 100.00 100 136.00 136.00 446.00 446.00 14 |3"Pressure Relief Valve 1 EA 1,200.00 1,200.00 100.00 100 20.00 20.00 1,220.00 1,220.00 15 {2"Welded 90 Degree Elbow 22 EA 5.20 114.40 8.00 176 40.00 880.00 45.20 994.40 16 |3"Welded 90 Degree Elbow 8 EA 8.55 68.40 12.50 100 40.00 320.00 48.55 388.40 17 |3"T connection I EA 20.00 20.00 17.50 18 10.00 10.00 30.00 30.00 18 [3"Plex Fitting 2 EA 125.00 250.00 20.00 40 17.50 35.00 142.50 285.00 19 |Timber Pipe Supports 15 EA 15.00 1,125.00 20.00 1,500 8.00 600.00 23.00 1,725.00 $13,793 8.496 LB $7,764 $21 556 MISCELLANEOUS COSTS 20 |Crew Per Diem °45|MD's 42.00 1,890.00 0.00 0 0.00 0.00 42.00 1,890.00 21 |Crew Housing *45|MD's 42.00 1,890.00 0.00 0 0.00 0.00 42.00 1,890.00 22 |Equipment Repair 1}LSUM 2,000.00 2,000.00 0.00 0 0.00 0.00 2,000.00 2,000.00 23 |Mobilization/Demobilization '1]LSUM 2,000.00 2,000.00 0.00 0 0.00 0.00 2,000.00 2,000.00 24 |Welder Rental 15 Day 50.00 750.00 750.00 0 0.00 0.00 50.00 750.00 26 |\Four Wheeler Rental 15 Day 50.00 750.00 0.00 0 0.00 0.00 50.00 750.00 25 |Equipment Rental®1]LSUM 5,000.00 5,000.00 200.00 0 0.00 0.00 5,000.00 5,000.00 $14,280 oO LB $14,280 Cfrnkcst Page 13 of 13 12/12/97