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DRAFT
TANANA POWER COMPANY
BULK FUEL UPGRADE
SITE INVESTIGATION -
PRELIMINARY DESIGN REPORT
TANANA,ALASKA
November 17,1997
DRAFT
TANANA POWER COMPANY
BULK FUEL UPGRADE
SITE INVESTIGATION -
PRELIMINARY DESIGN REPORT
Prepared for
STATE OF ALASKA
DIVISION OF ENERGY
Prepared by
DAMES &MOORE
5600 B Street
Anchorage,Alaska 99518
November 17,1997
D&M Job No.37203-003-218
TABLE OF CONTENTS
Section Title Page
TABLES 0.0...cece cece cece ec cceceueceeuseeeuueeeeneeeuneeenes ii
1.0 INTRODUCTION .....-..cc cece ccececceeeecesceeucuaeeeenues 1
2.0 EXISTING FUEL STORAGE FACILITIES ........00cccceeccceeeceeaes 1
2.1 CURRENT FUELUSE ........cccccceceeccceeccceueueees 1
2.2 HORIZONTALTANKS .........0cccceccceccceucceeueeees 1
2.3 SECONDARY CONTAINMENT .........-cccccceeceeeeeeees 2
2.4 MANIFOLD PIPING..........ccccccececceceececeeeeeees 2
2.5 TANK FARMFILLLINE ..........cececcceceeeceeeeeeees 3
2.6 FUELDELIVERY .........cccccccececcccceeeeaeeeeeees 3
2.7 SITEDRAINAGE.........ccceccceeecccceceeceeeeveeas 3
3.0 REUSE OF EXISTING EQUIPMENT ..........ccccccceeeecceeeeeaes 3
3.1 HORIZONTAL TANKS ........00-cccceccccceetceeeeeecs 3
3.2 SECONDARY CONTAINMENT ........00ccccceeeeceeeeeees 4
3.3.MANIFOLD PIPING ...........0ceececeeeeeeeeece veeeeee 4
3.4.TANKFARMFILLLINE ..........ccccccceceeecceeeuvees 4
4.0 PROPOSED TANK FARM .........ccccecccececcecceeecueeeeeues 5
4.1 GENERALSITECONDITIONS ..........0cecceeeeecceeeees 5
4.2 TANKS ...ccccccccecccccccevcceeeeeeeueeeeeueeeeees 5
4.3 SECONDARY CONTAINMENT .........00ccceeceeeeeceeees 5
4.4 FUELDISTRIBUTION .........0--cccceecccceeeeceeeees 6
4.5 PROPOSED TANK FARM FILLLINE ..........20--eecceeeees 6
4.6 PROPERTY OWNERSHIP .........--0-ccceeeeceeeeueeeeees 6
4.7 FLOOD PLAINEVALUATION .........0ccceeeceeeceeeeees 6
4.8 GEOTECHNICAL ..........ccccccceceeeeceeeeeeeeeeees 7
SITE INVESTIGATION -PRELIMINARY DESIGN REPORT
.
DIVISION OF ENERGY
D&M Job No.37203-003-218 1 November 1997
TABLE OF CONTENTS (Cont.)
APPENDICES
Appendix A Property Ownership Information
Appendix B_PHS Test Pit Information
Appendix C Floodplain Information
Appendix D_Preliminary Cost Estimate
TABLES
Table 1 Existing Fuel Storage for the Tanana Power Company
FIGURES
Figure 1 Site Plan and Details
PHOTOS
Photo 1 View looking north.Two existing horizontal tanks,tanker truck,and unused
3,000-gallon tank.
Photo 2 View looking south.Containment dike in foreground and access road from 3rd
Avenue.Yellow van mounted generator in upper right corner.
Photo 3 15,000-gallon tank in the back and 25,000-gallon Greer tank in the front.
Photo 4 25,000-gallon skid-mounted tank with geotextile liner rolled up in the foreground.
Photo 5 Top of dike and tanker truck connection to pipe manifold.
Photo 6 View looking south.The rear of the generator building,tanker truck,manifold
piping,and existing dike.
SITE INVESTIGATION -PRELIMINARY DESIGN REPORT
.
DIVISION OF ENERGY
D&M Job No.37203-003-218 li November 1997
1.0 INTRODUCTION
This preliminary design report presents results of our data review and initial site investigation for
the proposed Tanana Power Company Bulk Fuel Upgrades in Tanana,Alaska.This report was
prepared based on information gathered during our site visit and field survey,as well as
information obtained from the Department of Community and Regional Affairs (DCRA),Public
Health Service (PHS),Tanana Power Company (TPC),and Village Safe Water (VSW).
The site investigation and field survey was conducted from October 8,1997 through October 9,
1997.Mr.Don Eller of TPC was met at the site to discuss the facility operations,current fuel
usage,and to gain information for the proposed upgrade.The investigation included evaluation
of the fuel storage tanks,emergency venting,manifold piping,tank farm fill pipeline,and
secondary containment.A survey was completed for the tank farm site to evaluate the secondary
containment dike and to prepare a base plan for the tank farm improvements.Photos 1 and 2
show the condition of the site at the time of our investigation.
2.0 EXISTING FUEL STORAGE FACILITIES
2.1 CURRENT FUEL USE
TPC currently uses approximately 130,000 gallons of diesel fuel per year.Recently,a mobile van
mounted generator was brought on site to provide a more efficient means of meeting the lower
power demands during the summer.According to Don Eller the van mounted generator is
expected to save approximately 18,000 gallons of diesel per year.
2.2.HORIZONTAL TANKS
Currently,TPC has three horizontal storage tanks,25,000-gallon,15,000-gallon,and 3,000-
gallon,for a combined capacity of 43,000 gallons (Photo 3).The 25,000-gallon tank is a standard
skid mounted fuel tank manufactured by Greer Tank with a 3-inch welded nozzle and a 2-inch
fill/draw vent.The 15,000-gallon tank is a retrofitted tank that was originally larger.The tank
has a 3-inch welded nozzle,2-inch vent,manway,and various other threaded ports on the top of
the tank.The tank is supported on 18-inch concrete cribs spaced 14 feet apart.The tank also has
an access ladder that was loosely attached to the tank at the time of our visit.
SITE INVESTIGATION +PRELIMINARY DESIGN REPORT DIVISION OF ENERGY
D&M Job No.37203-003-218 |November 1997
The 3000-gallon tank was used for interim storage while the two main tanks were brought on line.
It is located outside the containment area of the two main tanks in a small lined containment area.
The tank is currently not in use.
TABLE 1
EXISTING FUEL STORAGE FOR THE TANANA POWER COMPANY
Tank Storage
Tank ID Tank Diameter Length Capacity*Fuel
Number (ft)(ft)(gal.)Type
1 10.8 25.6 17,550 Diesel
2 10.0 42.3 24,870 Diesel
TOTAL 42,420
*Note:Capacity is based on tank dimensions.
2.3 SECONDARY CONTAINMENT
The existing tanks are located within an earthen dike area.Seaman Corporation (8130 XR-5)
impermeable liner has been installed underneath the two main tanks but has not been extended to
cover the entire containment area.Approximately half of the area is unlined and is currently used
to park a tanker truck.The remaining liner is rolled up next to the 25,000-gallon tank (Photo 4).
2.4 MANIFOLD PIPING
The tank farm manifold is 3-inch welded steel pipe with flanged joints and 3-inch steel gate valves
(Photo 5).The fuel manifold runs along the top of the containment dike and is supported by
treated timbers.Manifold piping is routed underground at the fence line along the south side of
the containment area and resurfaces at the Northwest corner of the generator building inside of
an insulated valve box.Flexible connections are located at the two existing tanks and at the point
where the manifold pipe is directed underground.
DIVISION OF ENERGY
November 1997
SITE INVESTIGATION -PRELIMINARY DESIGN REPORT
D&M Job No.37203-003-218 2
2.5 TANK FARM FILL LINE
An existing fill line,currently not in use,begins just outside of the west gate entering the TPC
yard and runs directly south to the Yukon River approximately 800 feet away.The fill line is
constructed of welded steel flanged pipe.The pipe is resting on the ground and may need
corrosion protection along a portion of the pipe.The pipeline crosses several different properties
before reaching the river.Inspection of the north and south ends of the pipe indicates that it is in
fair condition.The barge fill point is capped and there is no containment beneath the fill
connection.
2.6 FUEL DELIVERY
Up until approximately a year ago,the tank farm received fuel through the aboveground fill line.
Currently,fuel is delivered by air transport to the Tanana Airport that is located approximately
one mile from the site.The fuel is then transported from the airport to the tank farm using a
tanker truck (Photo 6).
2.7.SITE DRAINAGE
Presently there is standing water under the tanks.Additional grading will be required to develop
positive drainage toa low point within the diked area so that water may be removed periodically.
The area surrounding the tank farm is relatively flat,but generally slopes to the south towards
Third Avenue.An isolated drainage area located to the north and west of the tank farm drains
toward a culvert under the access road.However,the culvert is set to high to drain the area and
will need to be lowered.
3.0 REUSE OF EXISTING EQUIPMENT
3.1 HORIZONTAL TANKS
The 25,000-gallon tank is in good shape and may be reused with the addition of emergency
venting,an access manway,and other modifications to meet current code requirements.The
15,000-gallon tank appears to be reusable with the addition of emergency venting and various
SITE INVESTIGATION -PRELIMINARY DESIGN REPORT DIVISION OF ENERGY
D&M Job No.37203-003-218 3 November 1997
other minor modifications to make it code compliant.The 3000-gallon tank was previously an
underground storage tank and is not suitable for reuse.
3.2 SECONDARY CONTAINMENT
The existing containment area was constructed to allow for future tanks.According to Don Eller,
the material used in the existing 3-foot high dike is "river silt".This material,although not as
stable as sand or gravel,should be adequate given that a properly installed liner will protect the
dike from erosion and help to minimize frost heaving.For this report it is assumed that the
existing fill and site layout will be used with minor modifications to meet current code
requirements.
The tank farm liner was installed without the use of geotextile and was not adequately covered
with fill material.As a result the liner is exposed in a few places.Where visible,the liner
appears to be in good condition but without removing the tanks and the cover material the integrity
of the liner can not be determined.For the purpose of this report we have assumed a new liner
will be required.
3.3.MANIFOLD PIPING
The existing manifold piping,flanged fittings,and flex couplings are suitable for reuse.
However,the gate valves will need to be upgraded to new ball valves to meet current standards
and to make for consistent operation.
3.4 TANK FARM FILL LINE
The existing pipeline appears suitable for reuse,however,TPC does not own the fill line and
ownership could not be determined.For this reason,an estimate for installing a new fill line
located within existing street/utility rights of way is included as part of the upgrade.It should be
noted that other fuel storage facilities in Tanana (school and store)receive fuel from the barge.
With more fuel storage,receiving barge shipments may become the economic choice.Larger
shipments could potentially bring a cost savings to the community.
S!tTE INVESTIGATION -PRELIMINARY DESIGN REPORT DIVISION OF ENERGY
D&M Job No.37203-003-218 4 November 1997
4.0 PROPOSED TANK FARM
4.1.GENERAL SITE CONDITIONS
The proposed upgrade is to expand the existing tank farm in its present location (Figure 1).The
original design took into account the possibility of future expansion resulting in the necessity for
minimal site work to accommodate the additional tanks.The Tanana wastewater lagoon is located
along the western border of the site.To the north is an access road aligned east to west,and the
eastern side of the site borders the City's garage.The elevation of the natural terrain is about 101
feet and slopes toward the south.The surface vegetation at the site consists of grass,shrubs,and
small conifer trees.
4.2 TANKS
As part of the preliminary design,two alternatives were evaluated based on cost:two new
horizontal 50,000-gallon tanks versus three new horizontal 25,000-gallon storage tanks.The two
estimated costs,which include tank costs and transportation (each quoted by a local supplier and
shipper),are shown below.
°3 -25,000 gallon tanks ---$109,524
°2 -50,000 gallon tanks ---$133,934
The site plan attached (Figure 1)shows the use of the two existing tanks and 3 new 25,000-gallon
horizontal tanks.The new and existing tanks provide 115,000 gallons of storage.This alternative
is preferred by Don Eller and is also the least expensive.In addition,the 25,000-gallon
alternative provides more flexibility for storage of the various types of diesel fuel that TPC uses
during the course of a year.
4.3 SECONDARY CONTAINMENT
The proposed tank farm cross section is shown in Figure 1.The upgrade of the site will include
grading the bottom of the containment area to collect drainage at the northeast corner of the
containment.Also,the dike along the adjacent access road will be moved to the east to allow
space for proper tank setbacks.There is approximately 20 cubic yards of gravel stockpiled in the
south end of the containment that can be used to cover the geotextile lining.More material can
be imported as needed to complete the containment.
SITE INVESTIGATION -PRELIMINARY DESIGN REPORT DIVISION OF ENERGY
D&M Job No.37203-003-218 5 November 1997
The drainage along the west and north sides of the tank farm will be graded to drain toward the
existing culvert in the access road.The culvert will be pulled out and put back to a depth that will
allow for proper drainage.
4.4.FUEL DISTRIBUTION
The existing manifold piping will be relocated within the dike,closer to the tank nozzles.A new
2-inch welded steel!line will be routed from the tank manifold to the van-mounted generator,
which is equipped with an internal day tank.
4.5 PROPOSED TANK FARM FILL LINE
Ownership of the existing fuel line is in question and it crosses private property without
easements.As a result of possible ownership and liability issues,we have assumed that a new line
will be constructed along Third Avenue and Garden Street to the Yukon River.
The proposed fill line route was determined as the most direct route to the Yukon River (Figure
1).The fill line is approximately 1,250 feet long and constructed of 3-inch diameter,schedule
40,carbon steel pipe with welded joints.Flanged connections will be used to connect pipe to the
various pieces of equipment.The fill line is to be placed in small diameter culvert at road
crossings.
4.6 PROPERTY OWNERSHIP
According to Don Eller,a portion of the property is owned directly by Tanana Power Company
as indicated by the deed included in Appendix A.The remaining portion of land,which the
building and tank farm occupy,is owned by the Eller family.However,this does not present a
problem as the Eller family has agreed to transfer land to Tanana Power as necessary to allow for
the project to move forward.
4.7.FLOOD PLAIN EVALUATION
The average elevation of the tank farm is approximately 101 feet.The Army Corps of Engineers
estimates that the 100-year flood elevation is approximately 84.7 feet.This was determined from
the worst flood on record occurring in 1937.The elevation of the proposed tank farm is above
SITE INVESTIGATION -PRELIMINARY DESIGN REPORT DIVISION OF ENERGY
D&M Job No.37203-003-218 6 November 1997
the flood plain;therefore the design of flood prevention measures will not be necessary.This
information was obtained from DCRA (Appendix C).
4.8 GEOTECHNICAL
The Public Health Service (PHS)excavated five test pits in March 1978 for the lagoon adjacent
to the TPC site.These test pits revealed up to 1 foot of peat at the surface,underlain by
approximately 10 feet of unfrozen brown silt.Gravel was found at about 12 feet below ground
surface.One test pit revealed permafrost at 9.5 feet below ground surface.Based on this data,
and the fact that the current tank farm has been in operation for approximately one year with little
evidence of settlement,we have assumed that permafrost would not be a problem in developing
the preliminary design.However,we recommend that two test pits be excavated to determine the
subsurface conditions in the area of the tank farm prior to final design.
5.0 PRELIMINARY COST ESTIMATE
Based on the preliminary design and information presented in this report,we estimate that the cost
of expanding and upgrading the existing tank farm will be on the order of $310,857.A
breakdown of this cost is provided in Appendix D.
The estimated cost is based on a four-man crew and construction duration of approximately 30
days.We also assumed that all the equipment necessary for the work could be found in Tanana.
A 20%contingency and 6%procurement/project management expense is included in the cost
estimate.
SITE INVESTIGATION *PRELIMINARY DESIGN REPORT DIVISION OF ENERGY
D&M Job No.37203-003-218 7 November 1997
FIGURES
Let Lo|
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|||||SEWAGE ot [|i
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SSS 2 I |og |ALATA AS "4 NEW 2"DIA FILL LINE -|'TO VAN GENERATOR i 'mie 1 ||||FILL LINE ROUTING MAP
-q{Pl io ||aa SCALE:1"rN 3%¥z Fs -<NN ''"=200oOBOEEllmaoO7SEenaronpooSEE|E)ah :ne28|8]jes]iil!lgEXISTINGCONCRETE4Be&&||||SUPPORT 26 25 es 28 :yj.i!if |i=x =::'L bb i EXISTING 3"DIA TANANA POWER '|:VARIESial:|UNDERGROUND COMPANY BUILDING ||$1015aaaDft|||spgcnowesnce |boV4__''6"NFS LINER COVER;TT 7 FLT =LAS ay Gee ;||||EXISTING GRADE.E MATERIAL
y-
a TANKER FILL Nt |'||'ASyrtety OM PRTES|||:EXISTING POWER POLE +PIPE TO REMAIN c!EXISTING VALVE BOX |||'}
SESSA
lst 4 'reeieeemncnes |7 SL |oT PRIMARY MEMBRANE LERiNSIDECONTAINMENTeeelqNEW3"DIA ABOVE GRADE '|'7 TT
\DIESEL FILL LINE '||eZ NISTIIOOTE |}EXISTING EARTHEN CONTAINMENTDIKEDETAIL(A)_--==--------|'NOT TO SCALE NEW,
EXISTING CHAIN ||||LINK FENCE '||1
a|
LEGEND ||||
DITCH LINE WASHETERIA ||TENDON 5
NOTES BUILDING ||
----GRAVELROAD EDGE |||'|NFS LINER oman:
"
4.BASIS OF VERTICAL DATUM IS TEM A',;COVER MATERIAL------PROPERTY LINE SPILE IN POLE,VSW EL 101.77 ||||
-EXISTING SLOPE INDICATOR
|||'EXISTINGb-_-NEW SLOPE INDICATOR-CUT FOR REMAINING FLL |||NEW SLOPE INDICATOR -FILL u 'bere”ORS OT ORO ROO__ .qocoe "pasta FLL UNE ROUTING '!||Sys ONS RRRRRG INRS,iw LIS SOAS
sane TOR Or font te !re ee ores--S TT TOP OF SLOPE -EXISTING SITE PI A N |Nl ||wee TOP OF SLOPE -NEW TT |:7 l NEW EARTHEN CONTAINMENTDIKEDETAIL cSSCALE:1°=20°|NOT TO SCALE :
M RE DATE:
=----DRAWING INFORMATION ey TANANA POWER COMPANY ieroweiocoreeNO.]BY.|_DATE DESCRIPTION NO.|BY.|DATE DESCRIPTION DRAWING SCALE 929 a FUEL SYSTEM UPGRADE ee ous.003-218
WIT.DATE REVISION
DESIGNED BY:DMC A
DRAWINGNO,CHEGKED BY 7m CROUE
SITE PLAN &DETAILS
APPROVED BY:ws roe ALASKA 90518 FIGURE 1
FILE:3720200981TE.OWO pecteng oli pertren TANANA,ALASKA
PHOTOS
ste-5 Ja tasik,aM wa de:bef KARE SF.tfSALTOORTAst rea...Hineateayeal
es!SIRGN:=AeneEt4TowerAAheRNAARITESRAISENOaosSheBeeSAKy,ieaAPhoto 1 View looking north.Two existing horizontal tanks,
tanker truck,and unused 2,000-gallon tank.
ee
Photo 2 View looking south.Containment dike in foreground and
access road from 3rd Avenue.Yellow van mounted
generator in upper right corner.
prance ._te -_-_-
FER PasTEN,ap tm daaBate:vith.Ae igieersSE
Photo 3 15,000-gallon tank in the back and 25,000-gallon Greer
tank in the front.
oes,ARs ot se Telacare:.cayoe
Photo 4 25,000-gallon skid-mounted tank with geotextile liner
rolled up in the foreground.
Photo 5 Top of dike and tanker truck connection to pipe
manifold.
eee
Photo 6 View looking south.The rear of the generator building,
tanker truck,manifold piping,and existing dike.
APPENDIX A
PROPERTY OWNERSHIP INFORMATION
Pd"AUR SOF RUN 258 FM YUKUN TELEPHONE FAX NU,Yuss73bdoy rod
;
INVOICE ee _(NO
DATE AUGUST 17,1984
YOUR
ORNL WO.
1UIRLonbrin a }
50LD TO:_SHIP TO:
TANANA POWER CO.,INC.
P.O.BOX 876
PALMER,ALASKA 99645
FOR amg”7 are sree PAU Car RMAT”oY
ORDERED SHIPPED
--DESCRIPTIUN iNITE pen |.aMounr \
Sold to Tanana Power Co.,Inc.
one acre of land located in Tanana
to build new power house on 26,000.00
Payable owed to Paula Eller reduced |9,000.00
This amount above was the total in plant
in construction at the time the exchange
took place.
lerJ.Clifton &Paula E.El
tors)FORM 3813LITHOINUSA ORIGINAL
WARRANTY DEED
(ALANKA)
-1S _The Genater 0...8)tee Ag -PAY a ent eke is...tz tke 7.ee oe oa be
tFlace af eesidcneed .a,fe.N.Ras he sprees Valen QY...Ak,A AEE,Ss
for aned in comnideration of 2...MOOR Ca
ee bee eee e ee cece anew tenet ees Aneeee cee ere e eee eee cere ee UT hand potid.cottvess aad wineits ter-_-ay)Adnan.Pewee.Ce Tose.cc etecseseeeece.becca eee ebaes
i ras Pemereteene eee Cae He Oewretitans Ceeeeeee Fee cee ECGs ttecat
the fallowidug desarthed coal estates
os land \uceled co ethie Wes SurveyNKparcel
447.Niocth wot he "Vousrn sid Ca ot "Tes Acarvey |MaskasherngmoreparVreutavlgdescribedasDol\lous :
(CCemmaencine at Carner No,a.ct VA oS Surces
Nc .aisd f ,\ownscte oft Tana ne,1 flleske thence,S sq%se'E,=aistance Hoar.3 Peat alens theeNotherlyright;of Wars ot "hed.vc yu,Arg |heeeratabbeginning.rence.oa OTS re -344 «Sq
_-
v)a distance.of 400 feat,Whence N 8q°su!Lod.,a distence:of M0 Sach thence Sco tay!yy'./a distance OF Heo feat tu dhe seint och |
eh?
--J
1 ev.Aisbance.ar tto fereet i hence N Co aaa '=
beg:n mre,
a A parcel Conta wAS yey.COD Squee ef.OM Ge.|
situeted in the State of Aluska.
DATED this 27th |...day of...Avgust....,veceseceeee 1984...
Signed,Sealed and Detivercd ee Presence afOn.FS oe cece createeereres eens eee eee (SEALY
oo.faut er Lh COI sees eee ecneee cece Leeeeees bee cteeec enon ee (SEAL)
UNITED STATES OF AMERICA -
gS Individual Acknowledgment
STATE OF ALASKA,(Alaska)
TINS 18 TO CERTIFY dat on thir ...U 7th...day of.AUQUSE..0.0...0.8.setaeeeeeeee .WBS...helere
the undersigned,w Notary Jtublic in and for the State of Alaska,duly commissioned and sworn,personally appeared oo.......
J.Clifton Eller and Paula &.Ellerts*sstseesanshanetswenksadkenatan keeeneenteetken
to me known te he the persun..deserihed fa and whe executed the shave and foregoing histrunent,and acknowledged to me
that 20...oe The ¥.....signed and sealed the tame freely and voluntarily for the uses and purpases thercin mentioned.
WITNESS my hand end official seal the day end year in this toate first above written.
we ROK,TAYE ceecececeeees Le eeeee
Notary Public for Alaskn.My commission expires 2...207979...ecco es
APPENDIX B
PHS TEST PIT INFORMATION
TBM #1 PROP Mon -,]
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EUTURE 1]omCACOORC:of
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SANDEE ELIS aeSn bicMoanaTHO
TSRAVELE *
Te"fe PE ROLE,
GRAVEL
APPENDIX C
FLOODPLAIN INFORMATION
Christy Valletta
Date of Visit:20 Awust 1990
General Observations/Camments:
Tamana is located an the north side of the Yukon River about 2 mileswestofthejunctionoftheTananaandYukonRivers,130 air miles west ofFairbanks.
High ground is available.
istori Record of High Water:
1937 was the highest flood of record.Flecding occurred in 1937,1948,1972and1973.No flooding cccus in the main part of town.Lowlyingroadseastoftownandneartheriverhaveexperiencedflooding.There isnoevidenceofanystructuresflooding.
le i $
Actions Taken:
Elevations are relative to an assumed elevation of 100 feet at theCoastamdGeodeticbrassmonument(TANAPORT 1942)looated 100 feetnorthwestofAirportReadandairportentranceroad.
No high water signs were placed due te a lack of permanent structuresintheareaofthelow-lying road.
Miscellaneous:
High water reached84.7 feet at the road in front of the old postoffice,300 feet west of the junction of Hill Street and First Aveme.
soy
Commnity:'TANANA Field Team:Harlan Legare iC*¥
APPENDIX D
PRELIMINARY COST ESTIMATE
Preliminary Cost Estimate
Project:Tanana Power Bulk Fuel Upgrade &Site Survey Work Order No:DM-97-003
Location:-Tanana,Alaska D &M Project No:037203-003-218
Condition:Three 25,000-gallon Tanks Date Prepared:November,12 1997
Basis:Force Account Construction Estimator:GRB
Preliminary Cost Summary
Tanana City Power Company Bulk Fuel Upgrade
Tanana,Alaska
CATERGORY COMPONENT MATERIAL |TOTAL FREIGHT LABOR TOTAL
DESCRIPTION cost!WEIGHT COST?cost?COST
A TANK FARM PAD*S $22,284 5,100 $1,785 $13,560 $37,629
B TANKS $88,294 87,950 $31,046 $9,500 $128,840
C MANIFOLD $7,143 1,562 $547 $1,208 $8,897
D PIPE &APPURTENANCES $22,906 15,950 $5,583 $15,966 $44,454
E MISCELLANEOUS”$26,560 950 $333 $0 $26,893
COMPONENT TOTALS $167,187 110012 Ib $38,768 $37,608 $243,563
TANANA CITY POWER COMPANY-25,000 GALLON TANKS
TOTAL DIRECTS:$246,712
PROCUREMENT AND FORCE ACCOUNT ADMINISTRATION (6%):$14,803
CONTINGENCY (20%):$49,342
$310,857
ASSUMPTIONS USED IN PRELIMINARY COST ESTIMATE
]MATERIAL UNIT COSTS INCLUDE LABOR WHERE NO LABOR COSTS ARE GIVEN.
2 EXCEPT FOR TANKS,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 BASED ON 4 PERSON CREW,WORKING 10-HOUR DAYS AT $35/HOUR ON AVERAGE.
CONSTRUCTION MANAGER,WELDER,AND ONE SKILLED LABORER FROM OUTSIDE LOCAL AREA,
OTHERWISE LOCAL HIRE.
4 DISPOSAL OF EXCAVATED MATERIAL AT NO COST OTHER THAN EQUIPMENT,LABOR,AND FUEL.
5 NFS GRAVEL COSTS INCLUDES $10/CY MATERIAL COSTS,$10/CY PLACEMENT PLUS $15/CY
FOR EXCAVATION AND HAULING.
6 TANK COSTS AND TANK FREIGHT COSTS PROVIDED FROM QUOTES.
7 CONSTRUCTION SCHEDULE ASSUMES 30 DAYS FOR WHOLE PROJECT.
8 MOBILIZATION /DEMOBILIZATION INCLUDES ROUND TRIP AIR FARE FOR NON-LOCAL WORKERS.
Page 1 of 3
Tnpwest2 11/12/97
Preliminary Cost Estimate
Three 25,000-Gallon Tanks
TANK FARM PAD
1 |Unclassified Excavation'50 CY 0.00 0.00 0.00 0 35.00 1,750.00 35.00 1,750.00
2 |NFS Gravel Fill?50 CY 0.00 0.00 0.00 0 35.00 1,750.00 35.00 1,750.00
3 |6"Cellular Confinement Grid 4,200 SF 2.50 10,500.00 1.00 4,200 0.80 3,360.00 3.30 13,860.00
4 |Non-woven Geotextiles 700 SY 0.72 504.00 0.41 287 1.00 700.00 1.72 1,204.00
5 |Primary Membrane Liner 350 SY 10.80 3,780.00 1.75 613 10.00 3,500.00 20.80 7,280.00
6 |8'Chain Link Fence 250 LF 30.00 7,500.00 0.00 0 10.00 2,500.00 40.00 10,000.00
$22,284 5,100 LB $13,560 $35,844
TANKS'
7 |Retrofit Vents on Existing Tank 2 EA 800.00 1,600.00 100.00 200 1,000.00 2,000.00 1,800.00 3,600.00
8 |Paint Existing Tank 1,500 SF 5.00 7,500.00 0.10 150 3.00 4,500.00 8.00 12,000.00
9 125,000 Gallon Skid Mounted Tank 3 EA 26398 .00 79,194.00 29,200.00 87,600 1,000.00 3,000.00 27,398.00 82,194.00
$88,294 87,950 LB $9,500 $97,794
TANK FARM MANIFOLD PIPING
10 {3"A106B sch 40 Steel Pipe 20 LF 6.82 136.40 7.60 152 8.15 163.00 14.97 299.40
11 |3"Ball Valves 11 EA 520.00 5,720.00 65.00 715 50.00 550.00 570.00 6,270.00
12 |3"Flex Fitting 7 EA 125.00 875.00 20.00 140 17.50 122.50 142.50 997.50
13 |3"Welded 90 Degree Elbow 3 EA 6.25 18.75 10.00 30 40.00 120.00 46.25 138.75
14 |3"T Connections 3 EA 10.90 32.70 15.00 45 20.00 60.00 30.90 92.70
15 |Timber Pipe Supports 24 EA 15.00 360.00 20.00 480 8.00 192.00 23.00 552.00
$7,143 1,562 LB $1,208 $8,350
Tnpwest2 2 of 3 11/12/97
Preliminary Cost Estimate
Three 25,000-Gallon Tanks
PIPELINES
3"A106B sch 40 Steel Pipe 1,250 LF 6.82 8,525.00 7.60 9,500 8.15 10,187.50 14.97 18,712.50
Barge Fuel Transfer Line 1j LSUM 1,150.00 1,150.00 500.00 500 350.00 350.00 1,500.00 1,500.00
APPURTENANCES
3"Check Valve 1 EA 310.00 310.00 100.00 100 136.00 136.00 446.00 446.00
3"Ball Valve 8 EA 928.00 7,424.00 100.00 800 81.50 652.00 1,009.50 8,076.00
3°Pressure Relief Valve 1 EA 1,652.00 1,652.00 100.00 100 20.00 20.00 1,672.00 1,672.00
3"Welded 90 Degree Elbow 4 EA 11.21 44.34 12.50 50 40.00 160.00 51.21 204.84
Timber Pipe Supports 120 EA 15.00 1,800.00 20.00 2,400 8.00 960.00 23.00 2,760.00
Under road Crossing 10 EA 200.00 2,000.00 250.00 2,500 350.00 3,500.00 550.00 5,500.00
$22,906 15,950 LB $15,966 $38,871
MISCELLANEOUS COSTS
Crew Per Diem'90|MD's 42.00 3,780.00 0.00 0 0.00 0.00 42.00 3,780.00
Crew Housing'90|MD's 42.00 3,780.00 0.00 0 0.00 0.00 42.00 3,780.00
Mobilization/Demobilization®1)LSUM 9,000.00 9,000.00 0.00 0 0.00 0.00 9,000.00 9,000.00
Equipment Repair 1}LSUM 5,000.00 5,000.00 0.00 0 0.00 0.00 5,000.00 $,000.00
Welder Rental 30 Day 50.00 1,500.00 750.00 750 0.00 0.00 50.00 1,500.00
Four Wheeler Rental 30 Day 50.00 1,500.00 0.00 0 0.00 0.00 50.00 1,500.00
Miscellaneous Rental 1]LSUM 2,000.00 2,000.00 200.00 200 0.00 0.00 2,000.00 2,000.00
$26,560 950 LB $26,560
Tnpwest2 3 of 3 11/12/97