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Home My WebLink AboutAugusta Canal Power Utilization and Raw Water Pumping Augusta Richmond GA DOCUMENT NAME: AU3LlSto. ~\ ThL..<.::CY u-\-; I I "Zn...:1-;on D--nd \J,Qu.) ~teY- V'-^..YY\yiVj DOCUMENT TYPE: YEAR: I gg~( BOX NUMBER: 5 FILE NUMBER: I S 1LP '3 NUMBER OF PAGES: 44 I I I I I I I I I I I I I I I I I I I AUGUSTA RICHMOND COUNTY, GEORGIA AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY r", l ~ -it-- 15rG3 July 6, 1998 Project 9606 PREPARED BY EEL 435 TELFAIR ST. AUGUSTA, GEORGIA ENGINEERS PHONE (706)724-5627 ZIMMERMAN, EVANS AND LEOPOLD, INC. I I I I I I I I I I I I I I I I I I I AUGUSTA RICHMOND COUNTY, GEORGIA AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY July 6, 1998 Project 9606 PREPARED BY EEL 435 TELFAIR ST. AUGUSTA, GEORGIA EN-GIN-E-ERS PHONE (706)724-5627 ZIMMERMAN, EVANS AND LEOP-OLD, INC. I I I I I I I I I I I I I I I I I I I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Project 11581-000 Augusta.. Richmond County, Ga. July 6, 1998 Page i TABLE OF CONTENTS EXECUT IVE SUMMA.R Y: ................................................................................................. I :IN"TRO D lU CTI ON: ............. ................ ...... ... ............. ....... ............ ... ... ...... ... ............ ......... ... 2 THE FUl/L DEVELOPMENT OF THE POWER RESOURCE:..................................... 3 THE FUIURE WATER SYSTEM REQUIREMENTS FOR A SUITABLE DESIGN YEAR CONSIDERING THE CONSOLIDATION OF THE AUGUSTA AND RICHMOND COUNTY" WATER SySTEMS:..................................................................7 FACILIT~ REDUNDANCY AND STAND-BY POWER NEEDED TO PROVIDE FOR RELIABILITY" AND TO ACHIEVE THE BEST COST-BENEFIT RATIO FOR THE PR OJEC1~: ......... ................................ .............................. .... ......................... ... ................. 15 THE OPTIMUM ARRANGEMENT FOR POWER DEVELOPMENT TO ACHIEVE THE GOALS OF THE PROJECT: ................................................................................. 16 DRA WIN"4} APPEND.IX: A ...............................................................................................20 'ZEL, ENGINEERS, 9606 Engineering ,study.doc I I I I I I I I I I I I I I I I I I I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Project 11581-000 Augusta.. Richmond County, Ga. July 6, 1998 Page 1 EXECU11VE SUMMARY: This Reports presents the evaluations made regarding the development of the power resources of the Augusta Canal and the costs of providing raw water pumping for the Augusta - Richmond County Water System. The Conclusions: . It is not financially feasible to develop a hydroelectric generation facility on the Augusta Canal. . The present site of the raw water pumping station is the best site for additional pumping of raw water to meet the Water System needs in the future. . Due to the age of the existing equipment, the water system needs additional raw water pumping to meet the present and future demands and provide reliability . . Hydromechanical power is the cost effective power source for driving new pumps to meet the pn::sent and future needs of the water system. The Recommendations: . Construct a new pumping station housing two Francis Turbines, speed increasers and water pumps of30 MGD each to meet the present and future needs of the Water System. Economies of scale dictate proceeding with both units at the same time adjacent to the existing unit NO.4. The existing equipment will be maintained in a reserve role. . Construct a new diesel driven vertical turbine pump of 45 MGD capacity for backup and peaking use capable of withdrawal from the Savannah River and the Augusta Canal. adjacent to the existing unit NO.4. . The capital costs for these works are estimated to be $ 10,760,000. 'ZEL, ENGINEERS, 9606 Engineering Study.doc I I I I I I I I I I I I I I I I I I I AUGUST A CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Project 11581-000 Augusta., Richmond County, Ga. July 6, 1998 Page 2 INTRODUCTION: The Federal Energy Regulatory Commission awarded Preliminary Permit 11581-000 on August 1, 1996 to the consolidated government of Augusta - Richmond County for filing a license application for the Augusta Canal Power Project. The Augusta Canal provides the water power to operate three presently licensed hydroelectric generating facilities (Sibley Mill, FERC #5044; King Mill, FERC #9988; and Enterprise Mill, FERC #2935). In addition, the Augusta - Richmond Utilities Department operates a hydro-mechanical facility to provide the power to drive the pumps that transport raw water to its water filtration plant. This engineering study was conducted to evaluate the available power, its value and costs of developmc;:nt, and also to determine what additional power the Utilities Department will require to meet the needs of the water system. The Augusta-Richmond County Commission issued an Statement of Goals for the utilization of the Augusta Canal Resources (See Appendix B). This Statement identified the priorities that the Augusta-Richmond County Commission places on the various uses of the Augusta Canal Resource. Various levels of use were considered. Financial feasibility is the first issue examined on available levels of development for power production. 'ZEL, ENGINEERS, 9606 Fnginemng Study.doc I I I I I I I I I I I I I I I I I I I AUGUST A CANAL POWER UTll.JZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Project 11581-000 Augusta.. Richmond County, Ga. July 6, 1998 Page 3 THE FULL DEVELOPMENT OF THE POWER RESOURCE: The Augusta Canal was constructed in 1848 and expanded in the 1870's to provide water power to ,enhance industrial growth in the Augusta area. The Augusta Water System began its use of the Augusta Canal as a water source and the power source to pump water in 18611 near 12th Street. Use at the present location of the pumping station began in 1898. The works were moved upstream of Rae's Creek to insure a better quality raw water source. At the time of peak canal usage, 14 entities used the Canal for power and used up to 6,000 CFS. Clearly, such a demand on the Savannah River (that has a mean flow of 7,500 CFS) must have, at times, stressed the environmental conditions in the section of the Savannah River that is bypassed by the diversion. Flows can be returned to the bypass reach along various points of the Savannah River, including: the pumping station; the long spillway at Rae's Creek; the Sibley Mill tailrace; the King Mill tailrace; and, tailraces into the Second Level and Third Level of the Augusta Canal through Hawk's Gully. Since then, environmental conditions have improved in the bypass reach by a. reduction in the usage of the canal and an increase in the minimum released by upstream -reservoirs built during the last fifty years. Figure 7 presents the capacities of each the systems that remain in existence. This study evaluated the costs for full development of 1 T. H. Rob~rtson, Georgia Operator - Spring 1977, p.9 'ZEL, ENGINEERS, 9606 Engin~llIg Study.doc I I I I I I I I I I I I I I I I I I I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Project 11581-000 Augusta.. Richmond County, Ga. July 6, 1998 Page 4 the remaining power potential of the Augusta Canal at the two possible sites identified in the Preliminary Permit. The costs associated with full development are shown on Figure 8. Equipment layouts were made to facilitate the assessment of the costs of various power methods. Twin Francis and Kaplan water turbines; speed increasers, power takeoffs, electric generators, electric motor driven pumps, mechanically driven pumps, single or two stage, centrifugal, split case, etc. were considered in the evaluations that allowed for alternative pumping arrangements from the river and/or canal water source. Alternative: power sources considered for reliability of the system were:, diesel engines, electric (generated and utility service). Gas turbine power was considered too costly. The physical an'angements fully evaluated are shown in the Drawing Appendix and are composed of At Site 2: (See site concepts shown on Drawing Appendix pages 11 and 12) · Drawing Appendix Figure A: Two (2) Twin Francis hydropower turbines and 35 MGD Pumps. · Drawing Appendix Figure B: Three (3) Twin Francis hydropower turbines and 35 :\1GD Pumps. · JDrawing Appendix Figure C: Two (2) Kaplan hydropower turbines and 35 MGD JPumps. · Drawing Appendix Figure D: Four (4) Twin Francis hydropower turbines, one (1) 35 MGD Pump and three (3) electric generators @2,200 kW. 'ZEL, ENGINEERS, 9606 Engineering Study.doc I I I I I I I I I I I I I I I I I I I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINElERING STUDY FERC Project 11581-000 Augusta.. Richmond County, Ga. July 6, 1998 Page 5 . Drawing Appendix Figure F-1: Two (2) Motor and one (1) Diesel driven pumps. . Drawing Appendix Figure H: Four (4) Kaplan hydropower turbines and electric generators @2,800 kW. . Drawing Appendix Figure I: Four Kaplan hydropower turbines and two (2) electric generators @ 2,800 kW. and two (2) 45 MGD pumps. . Drawing Appendix Figure 1: Two Kaplan hydropower turbines and two 45 MGD pumps. At Site 3: (See site concepts shown on Drawing Appendix pages 13 and 14) . Drawing Appendix Figure E: Four Kaplan hydropower turbines and electric generators @ 3,000 kW. . Drawing Appendix Figure G: Two Kaplan hydropower turbines and 45 MGD pumps. Many othe:r concepts were considered and eliminated based on cost, water availability, or complexity considerations. Among the considered improvements was an additional control structure across the Canal to increase the head available. Details are shown on the Drawing Appendix, page 15. While the impact and costs of the control structure was included in the evaluatiom; to provide a similar basis for comparison, the recommended arrangement does not include tm!; control feature because at that level of development the additional head only produces a slight improvement when compared to its cost. Developmc::Dt of electric power at the Augusta Canal is not financially feasible because of the low avoided cost of electric power in recent past, at present and reasonably anticipated in the 'ZEL, ENGINEERS, 9606 Engineering Study.doc I I I I I I I I I I I I I I I I I I I AUGUST A CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Prl()ject 11581-000 Augusta - Richmond County, Ga. July 6, 1998 Page 6 future. The City is able to utilize a limited quantity of the available power for its own purposes and hence derive a retail value only from the power needed to pump water for its water system. There is no readily accessible alternate use for the electricity other than conveyance to the Georgia Electric Network at avoided cost rates. The costs of "wheeling" (transmission of one entity's power by another) the power to other large City owned use was not considered feasible based on previous evaluations and the need for higher reliability than could be attained at the Augusta Canal. Electric generation and subsequent use of that electricity in electric motors to drive water pumps is less efficient than directly driving those same pumps with hydro-mechanical power. Consequently, the more efficient hydro- mechanical power scheme is recommended. 'ZEL, ENGINEERS, 9606 Engineering Study.doc I I I I I I I I I I I I I I I I I I I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Pl'Oject 11581-000 Augusta.. Richmond County, Ga. July 6, 1998 Page 7 THE FUTURE WATER SYSTEM REQUIREMENTS FOR A SUITABLE DESIGN YEAR CONSIDERING THE CONSOLIDATION OF THE AUGUSTA AND RICHMOND COUNTY WATER SYSTEMS: The Augusta-Richmond County Water System is composed of the union of the former City Council of Augusta water system with the Board of Commissioners of Richmond County Water System. These two water systems have been in operation since 1845 and 1948 respectiveily. The old City system had its source in the Savannah River since 1861 land the old County sy:;tem was served by ground water wells from the cretaceous aquifer. The consolidati.on of the two water systems was the event that compelled a Comprehensive Water System Study to guide the joint water system through the year 2015. That study evaluates the existing re:;ources and infrastructure and presents a growth management plan that makes best use of the l~xisting systems by redefining service areas and advocating mutually supportive infrastructure improvements. A summary of that study's recommendations and conclusions is included in Appendix C. That work is the basis of need used in this evaluation. To summaJ1ze the surface water source needs: the system is projected to demand 60 million gallons per day of water during the Maximum (peak) Day for the year 2015. In addition, the surface water production facilities are required to provide a Cross System Reserve of 10 million gallons per day in case anyone of four projected ground water supply systems is unable to meet its assigned load. This reserve is included for the purpose of increasing the system-wide reliability which historically has been absent from the water systems. Because 'ZEL, ENGINEERS I %06 EngineerinE. Study.doc I I I I I I I I I I I I I I I I I I I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Project 11581-000 Augusta - Richmond County, Ga. July 6, 1998 Page 8 the natun:: of this reserve is redundancy, the 10 million gallon per day reserve is not included in the evaluations for water delivery. We have extrapolated the projections to the year 2020 for the purpose of this Report. A very relevant issue considered is the pattern of water demand. The water resource use varies with season and within seasons by demands which vary above and below seasonal averages a.s illustrated on Figures 1 and 2. These variations are repeated yearly and our projections for resource utilization are based on their recurrence. In turn, that recurrence rate is used to determine the amount of time the water resource will be used to provide raw water to the Augusta Water System. 'ZEL, ENGINEERS, 9606 Engineering Study.doc s>~~ '-< ~ :;:l '-< p. ~ ~ 8 .......S'''tlCl) \0 I ""l ,.., \0 0....... 00 :=0.... - ". -- ~ (J g.-~ :3=~ o Ul = co c.....'"d ~bo OO~ e 0 tTl = ~ 9 c::: ~ ...., ~ P N ~ ....... o Z ~ ~ ~ >- ,.., l'T1 ~ ~ z C) l'T1 '"d Z ~ C) og ~ \0 l'T1 ~ C) CI) ...., 8 ~ Average, Min, Max, MGD - - IV IV VJ VJ *" VI 0 VI 0 VI 0 VI 0 I I I I I I I 1 1 1 1 I I I I I I 1 I 1 1 I I I I I 1 I I I "c"ol~,. - I I I I I "-. I I I I I --"'j'. I I I I '. , I I I I . I 1 I 1 I I I I I I I I I I I I 1 I I I I I I I I I I I "I.. " I I I I f -I 1 1 1 I I III' I I I I ,. I 1 I I , I I I I I . I I I I I I I I I 1 ..._nl_ ..,....J ., ., I ' ... I I I I I I I I .. ::}...;..., ,.11 f I 1 I I I I 1 I I .--,.-1..- ",-... I I 1 I I 1 I I I I .- .'T.,. '.; "ill I I I I 1 I 1 I . ". "_" ,I....,... ,. -- '. ....f ,.,,: I 1 I I I I , I .J:, ':;"'i_'~,~:>"., , I I I I . .,.,.... I I I 1 I .i" I I I 1 I 1 , I 1 .cl., I , I I I I , I 1 I 1 .".c. :1 ,. I I I , I I I I I I I . 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THESE SEASONS COINCIDE WITH THE DEFINITION FOR THEM IN THE INSTREAM FLOW STUDY (SA VANNAH RIVER INSTREAM FLOW STUDY - INTI~RIM REPORT, MAY, 1998, PAGE 7-2) TO DESCRIBE THE EXlSTING CONDITIONS AND ASSES~; THE IMPACT OF ANY PROPOSED ACTIONS ON THE ECOLOGICAL HABITATS OF THE BYPASSED REACH OF SAVANNAH RIVER THE PROPOSED WATER POWERED SYSTEMS ARE SIZED ON THE BASIS OF THE MAXIMUM PEAK DEMAND FOR THE DESIGN YEAR IN TInS CASE, THE 20 YEAR LIFE OF THE F. E. R C. LICENSE. The utilization of the resource will increase over time. The water system is making various realignment~: of service areas in accordance with the Comprehensive Water System Study. The utilization of the Augusta Canal resource is expected to reach a maximum day demand of 45 million gallons by the year 2000 and 65 million by the year 2020. Growth patterns are often presented in terms of the average condition. However, for this Report, on J'igure 3, we have presented the full spectrum that projects the maximum, average and minimum for the three defined seasons. This is considered relevant because this Report will be utilizl~d by Resource Agencies for the FERC Licensing. 'ZEL, ENGINEERS, 9606 Engineering ~;rudy.doc . '->~;l> ::"ctric:: '-<: (JQ ::0 Cl vO\ ~ n c::: ......S-~en \0,"'1>-3 \0 0...... 00 ~ ,-, r ~~n g.-~ 3::~ o UI = OC Q......~ nbo OO~ COrn a ~ '-:e c:: C') >-3 ~ P N ;l> >-3 ...... o z ~ ~ ~ ;l> >-3 tT1 Id ~ Z Cl ~ tT1 $:I) Z 00 Cl ~ ~ tT1 ~ Cl en >-3 8 ~ -...l o VI o , , , , , , t , , , , , , , , , , , , , , , i , , , , , , , , 0\ o . . System Demand, MGD w ~ o 0 . . . . . . . . , . . . . . . , . , . . . . , . .' . . . . . - o II : : I' '1 : I :: :: ' I. I I g'g'g'.g'.g'.g':E:E:E 333="="2.;';'=' ~ - ~ - - - - - - ;;~(;(JQoo(JQ~~~ .........$:>$:$:>$: $:>$:c:> <: ='c:> <:-, ~ ~ _.~ ~ - ~ ~ = x (tI = = = ~ 00 (JO 00 <'l> <'l> <'l> IV o IV 0 o o o IV o o IV IV o o ~ IV o o 0\ IV o o 00 IV o - o IV o - IV IV o - ~ IV o - 0\ IV o - 00 IV o IV o -<: ~ ~ "'l ~ ciQ' C "'I ~ ~ I ~ ~ - ~ "'I ~ ~ 3 ~ = Q. C') "'I o ~ - =- ""Ci "'I ~. ~ t"'l - o' = CI> n ~ N 1'1 r- ~~ z m m ;0 (fJ '0 0'\ o 0'\ [l ~. ~. ciO en C ,~ 0.. g I I I I I I I I I I I I I I I I I I I '-<>~;>> =-ctr:lC '< <JCl :;0 Q PO';; ~c --S''''Cen \0 I ""l. '""":l \0 Q '>-... 00 ~...... ~ ~('l)n t") t") ;>> =--z 3=f:: Q U'l = QO ~-'"d ~bo QO~ COm a ~ << ... c C '""":l ?= ~ ...... N ;>> ...., ...... o z ~ ~ ~ ~ ;>> '""":l ~ ~ Z Q '"d tT1 ~ Z (JQ Q ; ~ tT1 ~ Q en '""":l 8 >< Flow (x 1,000 CFS) ..... ..... '" '" w w 0 CJ\ 0 CJ\ 0 CJ\ 0 CJ\ 0 ~ u>> S>> < zS>> CD ::s r~::S CD enS>> 00 Q) ::J' 00 < r Q) -,,: Q)::Jt'W "::J -. CD Q) < ,,::TCD =w.., S' c C <o:::::t: '"'O-\..., CD CD S>> ..,01..... o' W -. 0.. I 0 00 -\. ::s CD ~O t: .., < CD I I I -I- I I I I I I I I I _ _ L _ _I_ I I I , I I I I I I I I I I I _ -.! _ _ _ _ _ _ _ _ L _ _,_ I " I I I I I I I I I I I I I I I I I' ----1---- ----.-- -,- I I I I I I I I I I I I I I I I I I I I I I 'I -,- - - - I - - - - - - - - r - - - -,- - - - - I , I I I I I , I I I , I I I I I I I I I I , I I I I I , I - -,- - - - "1 - - - - l' - - - - r - - - -,- - - - I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I - - -1- - - -..j - - - - -I- - - - - I- - - - -1- - -- I I I I I I I , I I I I I I I I I I I I I I I I I I I I I I _ _ _,_ _ _ _ .J _ _ _ _ .1 _ _ _ _ L _ _ _ _,_ I I I I I I I I I I I I I I I I I " I I I I I I I I I - - - - - - - - - - - - - - - - - - - I I I I I I I I I I I , I I I I I I I I I I I I I I I I I I I :s: III o ::roo .....-0 ... ~~ III '< W ..... c.... C :J CD ..... ,00 zr:: o 3 ~ 3 3 ~ 0- CD ~ W o -l 3 .l>- CD 0 "T1 ~ 0' ::E m .c r:: III CJ\ 0 CD ~ ----r e a. , 0 I ... m I )C I 0 I CD 0) CD 0 I a. ~ ----.... Cl) I a. I I I I ....... I 0 ~ ----l- e CXl 0 ~ <0 0 ~ ..... 0 0 ~ ..... o ~ '" o ~ w o ~ ~ liC. c ""l. ('l) ,1:0. I en ~ <: ~ = = ~ =- :;0 :2. ('l) ""l. en ('l) ~ ~ Q = ::. c c ""l. ~ - o. = ~ C ~ ('l) ~ ~ - N 1'1 r- 111! U(J) \C 0\ o 0\ l!1 ~. ~. (Jtl ~ .~ Co g I I I I I I I I I I I I I I I I I I I AUGUST A CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Pruject 11581-000 Augusta - Richmond County, Ga. July 6, 1998 Page 14 These variations, when combined with Figures 1 and 2 present a picture to the quantity and duration of the expected resource utilization. When combined with the flow duration curve for the Savannah River, a determination is made of how much of the time the resource is not available (due to low flows in the River) and an alternate energy source (diesel) must be used. The flow duration curve for the Savannah River is included for each of the defined "biological seasons" in Figure 4. Based on these relationships, the amount of time each equipment system is estimated to be operated is listed in the table in Figure 7. This relationship is the basis for the timing recommendation for construction of the parts of the raw water pumping system. 'ZEL, ENGINEERS I 9606 Engineering Study.doc I I I I I I I I I. I I I ,I I I I I I I AUGUST A CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Prl)ject 11581-000 Augusta - Richmond County, Ga. July 6, 1998 Page 15 FACILITY REDUNDANCY AND STAN,D-BY POWER NEEDED TO PROVIDE FOR RELIABILITY AND TO ACHIEVE THE BEST COST-BENEFIT RATIO FOR THE PROJECT: The Augusta Canal is both the source of the power and raw water pumped to the water filtration p]ant. In 1974, a system was constructed to provide backup in case of a Canal failure. This backup system is composed of a 2,000 hp diesel engine, a speed increaser/right angle gearbox and a vertical turbine pump capable of pumping from either the Canal source or from the Savannah River itself. This twenty four year old system was designed to provide 20 million gallons per day of raw water when pumping from the Canal and about 17 million gallons per day of raw water when pumping from the river. The existing diesel powered back-up does not have sufficient capacity to meet the needs of the water system in the event of a Canal failure. A new diesel based backup capable of pumping 45 million gallons is recommended for use as a backup in case on Canal failure and also to meet the peak demands at times that the hydro-mechanical systems or the available water power are not sufficient. 'ZEL, ENGINEERS, 9606 Engineering Study.doc I I I I I I. I I' I I I I I I I I I j I AUGUSTA CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Pmject 11581-000 Augusta .. Richmond County, Ga. July 6, 1998 Page 16 THE OPTIMUM ARRANGEMENT FOR POWER DEVELOPMENT TO ACHIEVE THE GOALS OF THE PROJECT: The cost (:valuations show that it is not cost effective to construct new facilities for electric power generation at the Augusta Canal. However, it is cost effective to construct hydro- mechanical facilities to pump raw water to the water filtration plant. We then evaluated the cost effectiveness of new hydro-mechanical pumping versus purchased electric power. The results of the evaluation are summarized on Figure 5. The 20 year present worth cost of the hydro-mechanical installation is $13,892,525 and the figure for electric utility driven electric system it i:; $ 18,923,426. The life of the facilities is 50 years for the hydro-mechanical system. The capital cost for the recommended alternative is $ 10,760,000. Hydromecbanical Base Electric Base Diesel Power 3 H ydromechanical Backup Total MotorlPwnps Total Capital Costs $ 8,160,000 $ 2,600,000 $ 10,760,000 $ 3,675,000 Arumal Capital Cost $ 481,941 $ 178,894 $ 660,835 $ 252,860 Present Worth of20 Year Capital Cost $ 5,310,275 $ ] ,97],]45 $ 7,281,420 $ 2,786,138 Annual Operational Cost $ 500,000 $ ] 00,000 $ 600,000 $ 150,000 Present Worth of20 Year Operational COS' $ 5,509,254 $ ] ,10],851 $ 6,611,]04 $ ] ,652,776 Annual Energy Purchase ~ 24M kWhlYr* $ - $ - $ - $ 1,080,000 Present Worth of20 Year Energv Purchase $ - $ - $ - $ 14,484,5]2 Total Present Worth of Options $ 10,819,529 $ 3,072,996 $ 13,892,525 $ 18,923,426 * Based on 3'Jlo increase annually Figure 5 - Hydromechanical Vs Electric Costs 'ZEL, ENGINEERS I 9606 Engineering Study.doc I I I I I I I I I I I I I I I I. I I I AUGUST A CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC Pmject 11581-000 Augusta - Richmond County, Ga. July 6, 1998 Page 17 c o ~$1O ~ $:;J) $18 IJ ~domrlIIrical2 Turl:ire'Purrp - I ~ $16 Ii) .Eh1ric fO\\Cf 3 l'vbtorfF\ntrs $14 $12 $8 Frem \\Orth of:;J) y~ ~ Total Fmot \\Orth of Qiiof6 $6 $4- $2- $ ~t Wxthof:;J) y~ CJital ~ \\OrthofJ) y~ Q:aaioml Figure 6 - lPresent Worth Comparison: Hydromechanical Vs Electric power ZEL, ENGINEERS I 9606 Engineering Study.doc ......>~> E.c~c '<: lJCl " a yo. ;; Ci C -S-"'tien \0 I ~ ....., \0 o::t:- oo :;l:l..... -. ~ n g.-~ 3~~ o (]I :: 00 Q....."o Cibo OO~ COm :: :;:0 9' c C1 -l ~ P ....... N ~ ....... o Z ~ ~ ~ ~ m :;:d ~ z o m "0 Z ~ a ~ ~ 00 [Tj ~ a en ....., a -. --l ~;:sw ~ :J. :1. :J. :J. :I. :I. :J. :I. i f[ tB Q: f'"'+ ,...... .....+ r-+ r-+ ,..-+ ,.... r-+ 2 ~ ->.I\.)W~U'1cn"""Q) ~ ~.~ ~ ~ ~<O<O~~~~~ ~ ~. ~ ., 3 3 HI ::;: = a i i ~~~~g~~~ sa. en ~ " ->. c3' ->. = ~ ~ 1il c 3. ->. 0 ~~~~~414141 :2. ~ ;E g, ..... Cii ~mi . < "~~ "Ill ~ ~ i ~cBcB~~ ~ ~ t q cB . ~~~~oo~~ ~ cf ~ m -->. ~ ->. ~ ~~ @ -.tt. 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July 6, 1998 Page B APPENDIX B 'ZEL I ~N.Gl1iE.ER..S , I I I I I I I I I I I I I I I I I I I AUGUSTA - RICHMOND COUNTY COMMISSION The Following Is A STATEMENT OF THE GOALS Adopted By The Augusta - Richmond County Commission To Describe The Manner In Which The Augusta Canal Power Project Would Develop, Conserve, And Utilize, In The Public Interest, The Water Resources Of The Savannah River. October 24, 1996 The Augusta Canal and the Augusta Dam are parts of a system that currently and for the past one hundred and fifty years has provided hydropower to industries located along the Augusta Canal. Three such industries still have the ability to generate hydroelectric power from the Augusta Canal. As a part of that system, the Augusta Canal and Dam are required, by Federal law, to be licensed by the Federal Energy Regulatory Commission (FERC). In addition, the Augusta - Richmond Water System uses water power to pump river water to its water treatment plant on Highland Avenue. The future water needs of the citiZlms of Augusta - Richmond County will require additional water be conveyed to the water treatment plant. Augusta - Richmond County plans to construct another hydro-mechanical facility to meet future water supply requirements. The Augusta - Richmond County Commission has been awarded a Preliminary Permit by FERC that will allow it i~O file an application to license the required works and to reserve flows to meet the need for additional water power to supply the water plant. The proposed project is located along the fall line of the Savannah River in the midst ofa metropolitan area with a population of approximately 500,000 persons. Augusta - Richmond County has elected to pursue an expedited licensing process developed by the FERC known a:; an Applicant Prepared Environmental Assessment (APEA). This proceeding moves public participation and involvement to the beginning of the licensing process. It also provides agencies and the public the opportunity to participate in joint meetings in which the content of needed studies will be discussed. Two such studies are an In-stream Flow Incremental Methodology Study (IFIM) and an Endange:red Species study. Other studies, such as recreational surveys, may also be needed. The public interest in this region is best served by a balanced use of resources. Augusta-Richmond County will develop the water resources of the region in an inclusive manner through the APEA process that provides for active public participation. Development will be based on inclusion of as many uses of the water resources as possible. These efforts will be fully consistent with the Augusta Canal Master Plan and will be done with the full coordination and consent of the Augusta Canal Authority. In order to create th~l best possible balance of water uses and to fully utilize the water resources, Augusta-Richmond County proposes to consider the following multiple resource uses: · Drinking water source for the metropolitan population · Hydro-mechanical power source to pump raw water to treatment plants · Enhamcement of Savannah River fisheries for commercial species · Continuation of existing industrial power generation and utilization for the benefit of the area · Maintenance or improvement of the natural ecosystem for the benefit of resident species of animals and plants thereby increasing the use of the Augusta Canal, the Savannah River and its environs as edu~tional sites · Prote::tion and maintenance of properties listed in the National Register of Historic Places · Main1:enance of the visual aesthetics of the area · Continuation of public access to regionally important resources of this National Heritage Area · Enhancement of game fishing access for public recreation fishing · Continued operation of the Augusta Canal to prevent overflowing and flooding of adjacent properties · Accommodation of water based recreational sports within safety bounds. · If surplus power exists, after accommodation of the other uses of the water resources, any surplus power will be used to the benefit of the public. = 'ZEL, ENGINEERS, Appendix B I I I I I I I I I I I I I I I I I I I AUGUST A CANAL POWER UTILIZATION AND RAW WATER PUMPING ENGINEERING STUDY FERC PrDject 11581-000 Augusta .. Richmond County, Ga. July 6, 1998 Page C APPENDIX C , ZEL, E.~G INEER.S , I I I I I I I I I I I I I I I I I I I Augusta-Richmond Utilities Department Comprehensive Water System Study June, 1998 1. EXECUTIVE SUMMARY This report forecasts the drinking water needs of Augusta-Richmond County to the year 2015 to provide a basis for effective management, planning, and operation of the Water System. The projections and recommendations presented are the result of over one year of analysis combined with 50 years of experience with the former Richmond County and City of Augusta water systems. The center of the second largest Metropolitan Statistical Area in Georgia, Richmond County population is expected to increase to over 236,000 by 20]5. To assess water needs, mid-range population projections provided by the Augusta-Richmond County Planning Commission were further delineated by type of use and distributed among small zones. Applying the results of an analysis of local water use patterns, water use wa:; projected to increase to 50 million gallons per day (Mgd), with peak summer use exceeding 90 Mgd. Using the latest available technology, a database-driven water system distribution analysi~; model was created - uniting projected water needs with water system components compiled from available published material, archives, personal interviews, and field investigation. The resulting model is a graphical, numerical engine capable of accurately predicting the effect of capital and operational improvements to the water system. By applying various scenarios, the hydraulic model was used to evaluate economic alternatives for each project. The report is organized in an order which reflects the analytical process used to evaluate water systems. Projections and methodology appears in the first 5 Sections. A description and brief history of the urban and suburban water systems is presented in Section 5 as a reference. Sections 6 and 7 discuss water production and distribution improvements, respectively. A discussion of the fire flow analysis which was conducted 'ZEL, ENGINEERS, 9625 rpl ARC Waler.doc Page 1 I I I I I I I I I I' I I I I I I I I I Augusta-Richmond Utilities Department Comprehensive Water System Study June, ]998 concurrently with the hydraulic analysis follows in Section 9 and the complete list of recommended capital improvements is presented in Section 10. This report provides the basis for a Capital Improvement Plan by identifying capital projects which accommodate 2015 water demands. Three phases of construction are outlined which divide the projects into 6 year planning groups identified as Phase ] (1998-2003), Phase 2 (2004-2009), and Phase 3 (2010-20]5). A summary of these projects is given in Table 1 with reference to the section of this report which describes each project. Table 1. Summary of Capital Improvement Projects Project SurfacE~ Water Production Improvement Projects SurfacEI Water Raw Water Projects Ground Water Production Improvement Projects Urban Pressure System Restructuring Projects Mid-County Connector Projects Tobaco:> Road Delivery System Projects North Gravity System Supply Projects Ground Water Plant System Improvement Projects ProposE!d Ground water Plant Distribution Projects Pine Hill System Improvement Projects Service Area Expansion Projects Miscellaneous Projects Fire Pro':ection Projects Section 6.3 6.3 6.4 8 8.2 8.3 8.4 8.5 8.5 8.6 8.7 8.8 Cost $ 6,600,000 $ 22,160,000 $ 13,000,000 $ 3,381,429 $ 8,755,969 $ 1,276,529 $ 923,711 $ 854,721 $ 2,628,225 $ 417,021 $ 4,422,413 $ 4,500,000 $ 113,133 'ZEL, ENGINEERS 9625 rpt ARC Water. doc Page 2