Loading...
HomeMy WebLinkAbout08/17/1993, 3 - EVALUATION OF FEASIBILITY FOR WATER TRANSFERS FROM SALINAS RESERVOIR TO WHALE ROCK RESERVOIR I, p MEETING DATE: II�H�������V���lllllllllllllll City of San LLaS OBISPO August 17 1993 COUNCIL AGENDA REPORT ITEM NUMBER: FROM: John Moss irector es Prepared By: Gary W. Henderson S�k' Acting U ' Water Division Manager SUBJECT: Evaluation of Feasibility for Water Transfers from Salinas Reservoir to Whale Rock Reservoir CAO RECOMMENDATION Receive and File Report and Direct Staff Not to Proceed with Further Studies Relative to Transferring Water from Salinas Reservoir to Whale Rock Reservoir. REPORT IN BRIEF The idea of transferring water, which would otherwise spill downstream, from Salinas Reservoir to Whale Rock Reservoir has been proposed as a project to meet current and future City water demands. Salinas Reservoir spills frequently due to the large drainage area and favorable runoff characteristics of the surrounding area. In contrast, Whale Rock Reservoir has only spilled six times since it was constructed and may be able to store water in excess of the natural inflow to the lake. Based on an evaluation of historical hydrologic information, there is the potential to transfer significant quantities of water which would otherwise overtop the Salinas Dam spillway and flow downstream. The actual quantity of water that could potentially be transferred annually would be limited by two major interrelated factors: the conveyance system capacity and the City's water demand. As the City's demand for water increases in the future, the potential water transfers will be significantly reduced. This will be due to the pipeline from Salinas to the City's Water Treatment Plant being at maximum capacity. Only the amount of excess capacity i above the City's water demand could be transferred to Whale Rock, assuming no other operating or system constraints. I A number of potential obstacles to the implementation of the project have been identified. The major areas of concern relate to a reduction in water quality as a result of water transfers, specifically as it may impact both the California Men's Colony (CMC) and the Department of Fish and Game. The degradation of water quality will increase the costs to CMC associated with treatment and may affect their ability to meet Federal and State drinking water standards. Fish and Game staff have indicated concerns for impacts to the fishery at Whale Rock due to water quality degradation. Other areas of concern are addressed in detail later in this report. Additional costly studies will have to be undertaken in order to fully evaluate the feasibility of this project prior to implementation. Since a number of the obstacles to this project have the potential to be insurmountable and the City is currently actively pursuing additional water supply projects (ie. Salinas Reservoir Expansion and Nacimiento), staff recommends that this project not be pursued at this time. �����►���IIIIIII��A,dUl city of san Luis oBispo COUNCIL AGENDA REPORT Salinas to Whale Rock Transfer - Page 2 DISCUSSION The potential for transferring water from Salinas Reservoir to Whale Rock Reservoir has been proposed as a project to increase the City's water supplies to meet current and future water demands. There are two conveyance systems that supply water to the City's Water Treatment Plant located on Stenner Canyon Road near Cal Poly. Both systems deliver water in one direction through pipelines from Salinas and Whale Rock Reservoir's to the Water Treatment Plant. This potential project would transfer water that would theoretically spill from Salinas Reservoir to Whale Rock Reservoir via the use of these existing pipelines. This proposal would require, at a minimum, reversing the flow in the existing Whale Rock pipeline and the modification of the existing pump stations to allow for the flow direction change. The transfer of water from one reservoir to another could increase water supply because of the storage, spill, evaporation, and operational characteristics of each reservoir. Salinas Reservoir has an existing storage capacity of 23,843 acre-feet (AF) and a drainage area of 112 square miles which results in frequent spills. In comparison, Whale Rock Reservoir has a storage capacity of 40,662 AF and a drainage area of only 20.3 square miles which has resulted in only six spills since the reservoir was completed in 1961. The City already coordinates the use of _ water supplies from Salinas Reservoir and Whale Rock on a cooperative yield approach which maximizes the combined yield to the City. This report is intended as a preliminary feasibility analysis of the potential benefits and drawbacks of the project. A thorough analysis of all aspects associated with this project has not been undertaken. Potential areas of concern or problems anticipated have been identified in the following sections of this report. A cost analysis has also not been completed due to the vast number of uncertainties identified in the report. Evaluation of Potential Water Transfer Ouantities There-are numerous factors which will impact the potential project yield which must be evaluated and analyzed to determine the viability of the transfer concept. The evaluation of the quantity of water available for transfer was broken into three steps outlined below. 1. Historical Spills - As the first step in the evaluation process, the historical spillway discharges at Salinas Reservoir were compiled to provide an idea of the average amount of water which has overtopped the spillway. The average historical spillway discharge has been 12,198 acre-feet per year (AFY) as shown in Table I. The period of record used for this and proceeding calculations is from 1952 to 1991. This period was chosen because the reservoir construction was completed in 1942 and under various scenarios evaluated, would have filled and spilled by 1952. The cutoff date of 1991 was utilized because the existing computer model utilized for safe annual yield analysis uses historical data thorough the recent drought of record which ended in 1991. The additional one and half years since 1991 will not significantly alter the historical trends analyzed in this report. 9_ �uh�i ►�Illlllull ►�I��U city Of San tt��� OBISPO j COUNCIL AGENDA REPORT Salinas to Whale Rock Transfer Page 3 2. Theoretical Spills - Since a significant amount of potential water transfers were identified through review of historical records, the existing computer model utilized for safe annual yield evaluation of the Salinas and Whale Rock Reservoirs was modified to analyze the spillway discharge which would have occurred under various scenarios, the results of which are shown in Tables I & II. Table I shows the estimated.spill amounts assuming current storage capacity at Salinas Reservoir and varying yearly City water demands. The computer model uses the City water demand as a constant value for each year since 1942. Table II predicts the anticipated yearly spills following expansion of the reservoir storage capacity resulting from the proposed installation of spillway gates. The results indicate that the average yearly spill amounts range from 8,980 to 12,698 AFY. The analysis revealed less of an impact following enlargement of the reservoir than anticipated. On closer review of the information it was found that once the reservoir fills following the increase in available storage, the reservoir will tend to fluctuate in the upper storage levels the majority of the time. Therefore, spills in excess of available storage can still be anticipated. The analysis to this point reveals that there is the potential for large water transfers based on historical information. 3. Conveyance System Capacity- Following the determination that there was the potential to divert significant quantities of water which would normally overtop the spillway, an investigation of the conveyance system limitations was undertaken. The Salinas pipeline has a maximum sustained capacity of approximately 8.2 mgd. The analysis was performed for both the maximum capacity and a reduced capacity of 7.4 mgd which accounts for both scheduled and unscheduled maintenance ("down time"). With the existing Salinas pipeline capacity identified, varying City demands were imposed on the system to determine the remaining capacity which could be utilized to transfer water to the Whale Rock pipeline. The analysis was performed for annual City demands ranging from 5,000 AFY (approximately equal to current "post drought" demand) to 10,000 AFY (which is approximately the City's projected demand at "full buildout"). The analysis indicates that the conveyance system capacity versus the City demand may be the major constraint in the amount of water that can be transferred each year. As shown in Figure I and Attachment A, the yearly diversion to Whale Rock Reservoir would range from 3,289 AFY to 187 AFY. This indicates that as future City water supply demands increase, significant reductions in potential transfer amounts will occur. The evaluation to this point has not considered many items which have the potential to reduce the water available for transfer. The following items may impact the ability to transfer the amounts of water previously identified, a more detailed analysis of each of these items would be required prior to project implementation: ■ Whale Rock Pipeline Capacity - It was assumed for this analysis that the flow can be reversed in the Whale Rock pipeline and that the amount of water conveyed through the Salinas pipeline in excess of the City's demand could be delivered to Whale Rock Reservoir. ■ Whale Rock Storage Capacity - The analysis assumed that there was sufficient capacity in Whale Rock Reservoir every year to store water transferred from Salinas Reservoir. ����H��►►►�IIIIII�IIij���1� city of san Luis oBispo COUNCIL AGENDA REPORT Salinas to Whale Rock Transfer Page 4 If Whale Rock spills or is close to spilling, there will not be sufficient storage capacity to allow for water transfers. ■ Other Commission Agencies Water Demands - The evaluation assumed that the other commission agencies would receive water from Salinas Reservoir and the amount would be credited back to the City's share of the water available in Whale Rock. If this were not the case, deliveries to California Men's Colony (CMC) would limit water transfers to Whale Rock. ■ Water Quality from Salinas - It was assumed that the City and other agencies receiving water from Salinas would be able to treat the water to acceptable levels at all times during the year. This may not be the case due to elevated turbidity levels following high runoff periods or taste and odor problems associated with algae blooms during the summer months. Safe Annual Yield The previous potential water transfer amounts presented in this report should not be confused with safe annual yield. Safe annual yield is defined as the quantity of water which can be withdrawn every year under critical drought conditions. The amount presented earlier in this report are yearly averages for potential transfer. The actual increase in safe annual yield from the two reservoirs will require extensive modification of the computer program used for simulation of the City's operation of the reservoirs. The actual safe annual yield available from water transfers will be less than the average diversion amounts. Potential Problems or Areas of Concern There are many potential areas of concern relative to the transfer of water from Salinas to Whale Rock which will have to be addressed or mitigated. The following list are a number of the potential obstacles which need to be addressed and is not intended to suggest that the project is not capable of being accomplished: 1. Department of Fish and Game - The Department of Fish and Game has been contacted concerning the possibility of transferring water from the Salinas Reservoir to Whale Rock. There are two main areas of concern that the Department expressed. The concerns involved the potential for introduction of non-native species and degradation of water quality at Whale Rock Reservoir. It should be noted that the Department of Fish and Game has identified Whale Rock Reservoir as an important steelhead trout fishery and may not allow the water transfers from Salinas Reservoir without proper safe guards which would insure protection of the fishery. 2. Whale Rock Commission - The Whale Rock Commission would have to approve the conveyance system modifications necessary to accomplish the transfer. An accounting system would also have to be agreed upon to the satisfaction of all member agencies. Assuming that there are no impacts to the.other agencies, this should just be a procedural issue. The one area of the accounting procedure at Whale Rock that would have to be �,� ►����IIIIIAII��au�ui����ll city of san oBispo i COUNCIL AGENDA REPORT Salinas to Whale Rock Transfer Page 5 investigated is the policy concerning account balances following spill events at the reservoir. Current adopted policy states "A reservoir spill will cancel all excess and deficit water." If this policy was not amended, water transferred by the City to Whale Rock would be lost or reduced following the overtopping of the spillway. 3. California Men's Colony - The degradation of water quality at Whale Rock Reservoir or direct deliveries of water from Salinas Reservoir could dramatically impact the California Men's Colony's ability to meet current and future water quality regulations. The City of San Luis Obispo is currently upgrading our water treatment plant due to water quality problems associated with water from Salinas Reservoir. Salinas water has significantly higher levels of organics which react with chlorine and have the potential to form trihalomethanes in excess of state allowable limits. It should also be noted that water from Salinas Reservoir requires additional treatment (ie. increased and/or additional chemicals) to meet State and Federal standards, which will increase the costs to CMC. The California Men's Colony has contracted with the County to receive State Water to meet their water demands. Discussions with CMC staff indicate that they intend to utilize Whale Rock Reservoir as a"backup supply", similar to the City's management of our reservoirs. CMC also uses--water from Chorro Reservoir before-requesting _ deliveries from Whale Rock which further reduces the demand placed on Whale Rock water supplies. This reduced dependance on Whale Rock may effectively reduce the available storage capacity for transferred water, since CMC will be leaving more water in storage at Whale Rock. These issues will have to be evaluated and addressed to the satisfaction of CMC staff. 4. Whale Rock Conveyance System The Whale Rock conveyance system would have to be evaluated and modified to allow for the reversal of flows in the system. The system was designed to convey water in one direction only. There also may be significant pressure increases in various pipeline segments in excess of the design rated capacity of the pipeline. If this is the case, a separate parallel pipeline or a replacement of various pipeline segments may be required. 5. Impacts Downstream of Salinas Reservoir - There may be impacts relative to reduced downstream discharges from the reservoir which will require a detailed evaluation. Down stream water users may oppose the project based on perceived impacts even if the evaluation indicates no significant impacts. 6. Water Treatment Plant Capacity - The City's Water Treatment Plant located on Stenner Canyon Road is currently undergoing a major upgrade to meet new federal and state regulations. A pilot study was completed in June of 1990 and identified improvements necessary to meet the proposed regulations (which have since been adopted). There have been periods, in the past, when the water treatment plant as been required to operate at maximum capacity (11.5 mgd). Therefore, the pilot study also evaluated increasing the plant capacity as part of the project. The pilot study revealed that the high quality water from Whale Rock can be treated to meet state and federal3�5 ����n���Ni�IIIIIi�I� 818111 MY Of San LUIS OBI SPO Hjj% COUNCIL AGENDA REPORT Salinas to Whale Rock Transfer - Page 6 regulations by "direct filtration". Treating Whale Rock water by "direct filtration" eliminates the sedimentation process. The existing sedimentation basin has a maximum capacity of 11.5 mgd. In bypassing this process for treatment of Whale Rock water, the plant capacity is increased to 16.0 mgd. The potential degradation of water quality at Whale Rock due to transfers from Salinas may require future modifications at the treatment plant when City demand exceeds 11.5 mgd. 7. State Division of Water Rights - The City of San Luis Obispo currently has a permit to appropriate water from Salinas Reservoir which is issued by the Department of Water Resources Division of Water Rights. The permit allows the City to divert 45,000 acre- feet per year to storage at Salinas Reservoir. A petition to the State requesting modification of the permit to allow redistribution of storage from Salinas to Whale Rock would be necessary. Discussions with State Division of Water Rights staff indicate that the Board would likely support such a request, but the petition for change would most likely be protested by other agencies, groups or individuals. Additional Studies/Evaluation Required There are a number of questions and concerns raised within this report which will require more detailed evaluations prior to committing to the project. If the City Council supports continuing the evaluation of the transfer of water from Salinas to Whale Rock Reservoir, the following list provides a phased approach towards implementation of the project. A. Phase I: Detailed Engineering Study - A detailed engineering study should be undertaken to address issues and concerns presented in this report and identify other areas which may impact the feasibility of the project. A preliminary environmental assessment should be preformed to identify potential impacts which may result in the inability to proceed with the project. The study would also analyze the project's potential to increase the City's safe annual yield available from the two reservoirs based on coordinated operation of the facilities. An engineering study of this type is estimated to cost in excess of$100,000. B. Phase II: Environmental Impact Report - An environmental impact report will be required to address project related impacts and identify necessary mitigation measures. A consultant specializing in studies of this type will most likely be necessary to complete this task. The preparation of the environmental impact report is estimated to cost in excess of$100,000. C. Phase III: Design and Construction - Conveyance system modifications which are identified in the engineering study will require preparation of detailed plans and specifications. Following completion of the plans and specs, the project would be put out to bid and awarded to the lowest responsible contractor. The project may require an outside construction manager depending on the scope of the work necessary to complete the project. The extent of the modifications required to convey water from Salinas to Whale Rock have not been identified, therefore cost estimates for completion of this phase have not been prepared. ?J.. 111111III 111 j�JJ�J city Of San tL.,� OBI SPO Boom COUNCIL AGENDA REPORT Salinas to Whale Rock Transfer Page 7 SUMMARY The idea of transferring water from Salinas Reservoir to Whale Rock Reservoir has the potential for providing increased water supplies to meet current and future City demands. The existing pipeline from Salinas Reservoir to the City of San Luis Obispo's Water Treatment Plant limits the amount of water that can physically be transferred each year. Depending on the City's yearly consumption demands, the potential transfer amounts range from 3,289 AFY to 187 AFY. This constraint limits the ability of the proposed project to meet the City's future water supply needs once the annual demand exceeds the conveyance system capacity. There are a number of obstacles that will likely prevent implementation of this project. In particular, the impacts to the California Men's Colony and the concerns raised by the Department of Fish and Game appear to represent the major hurdles to the project. Since the City is currently actively pursuing the expansion of Salinas Reservoir and the Nacimiento Projects to meet current and future water demands, staff recommends that further evaluation of this project should not be pursued at this time. FISCAL IMPACT This project was not identified in the 1993/95 Financial Plan which was recently approved by City Council. The funds necessary to proceed with this project could be identified from water fund reserves or by deferring another approved capital project. Funding for this project has not been included in the current water fund analysis and rate setting. ALTERNATIVES 1. Direct staff to prepare a Request for Proposals to provide consultant services for the preparation of a detailed engineering study and preliminary environmental assessment relative to transferring water from Salinas Reservoir to Whale Rock Reservoir. Attachments: 1. Table I - Salinas Reservoir Surplus Water: Existing Storage Capacity 2. Table II - Salinas Reservoir Surplus Water: Expanded Storage Capacity 3. Figure I -Salinas to Whale Rock Transfer: Excess Pipeline Capacity 4. Attachment A - Salinas to Whale Rock Transfer (8 pages) 3- Table I SALINAS RESERVOIR SURPLUS WATER Existing Storage Capacity Historical Computed Spills (Existing Storage Capacity)" Year Spills (A.F.) 5,000 AFY 7,000 AFY 8,000 AFY 10,000 AFY 1952 26.882 22,722 22,169 21,889 21,460 1953 0 0 0 0 0 1954 0 0 0 0 0 1955 0 0 0 0 0 1956 4,260 5,026 0 0 0 1957 0 0 0 0 0 1958 45,580 42,999 37,851 34,577 32,950 1959 0 0 0 0 0 1960 0 0 0 0 0 1961 0 0 0 0 0 1962 7,299 2.343 2,002 1,924 1,788 1963 0 0 0 0 0 1964 0 0 0 0 0 1965 1,557 0 0 0 0 1966 0 0 0 0 0 1967 66,337 61,454 52,860 49,982 47,856 1968 0 0 0 0 0 1969 124.867 121,227 117,498 116,207 114,817 1970 0 0 0 0 0 1971 0 0 0 0 0 1972 0 0 0 0 0 1973 8.226 19,861 12.752 11,179 10,916 1974 7,245 8,460 6,470 5.758 5,007 1975 0 291 0 0 0 1976 0 0 0 0 0 1977 0 0 0 0 0 1978 48.690 62,730 58,902 58,658 58,353 1979 5,593 6.580 4,775 4,119 3,405 1980 35,243 50,987 48,979 48,298 47,580 1981 0 572 0 0 0 1962 9,481 16,197 12,869 11,550 10,164 1983 62,550 92,343 90,166 89,453 88,744 1984 650 1,894 588 235 0 1985 0 0 0 0 0 1986 14,295 17,630 13,555 12,098 10,364 1987 0 0 0 0 0 1988 0 0 0 0 0 1989 0 0 0 0 0 1990 0 End of Analysis End of Analysis End of Analysis End of Analysis 1991 0 1992 .0 1993 1 43,578 Ave. per Year 12.198 12,698 11,463 11,094 10,795 'Water Year: October-September Computed spills based on historical hydrologic information and various constant City water consumption demand for entire period of record. 3-� Table II SALINAS RESERVOIR SURPLUS WATER Expanded Storage Capacity Calculated Spills A. . Year 5,000 AFY 7,000 AFY 8,000 AFY 10,000 AFY 1952 11,41 4,255 3,933 T,-502- 1953 21953 0 0 0 0 1954 0 0 0 0 1955 0 0 0 0 1956 674 0 0 0 1957 0 0 0 0 1958 40,497 31,166 27,820 24,255 1959 0 0 0 0 1960 0 0 0 0 1961 0 0 0 0 1962 0 0 0 0 1963 0 0 0 0 1964 0 0 0 0 1965 0 0 0 0 1966 0 0 0 0 1967 52,697 39,655 35,332 30,661 1968 0 0 0 0 1969 119,756 116,020 114,741 113,362 1970 0 0 0 0 1971 0 0 0 0 1972 0 0 0 0 1973 14,994 7,906 5,544 3,004 1974 7,393 5,302 4,540 3,787 1975 0 0 0 0 1976 0 0 0 0 1977 0 0 0 0 1978 58,516 51,239 48,798 46,228 1979 5,677 3,692 3,014 2,299 1980 50,029 48,027 50,364 46,632 1981 0 0 0 0 1982 14,643 10,739 9,419 8,021 1983 91,811 89,623 88,907 88,201 1984 1,066 0 0 0 1985 0 0 0 0 1986 15,009 10,689 8,939 6,993 1987 0 0 0 0 1988 0 0 0 0 1989 0 0 0 0 1990 End of Analysis End of Analysis End of Analysis End of Analysis 1991 1992 1993 Ave.per Year 11,528 9,960 9,556 8,980 'Water Year: October-September "Computed spills based on historical hydrologic information and various constant City water consumption demand for entire period of record. Figure 0 0 LO co o 0 w o w M U1 .� Z o NL CL LL `./ o N i � v a 0 In xa T ' o Ow COE [-� 'x con Zo LO0 T- o rn co co Lo T T (spussnoyj) (.yeah .gad lea=[-a.ro`7) puewreC3 AEC) 3-1b Attachment A CA M N (D lf) O Cn CA 1� NqT N 0 Co M M M N N T T T N N M M N 0 U M O 75- N 5 i �y y �y y W V CD � T T V .0 T V T V O) 44 cCl)4 O M O OD O Co O O Co O CO O CC) f� CD I�- (D f.- (D I�- r� (D f*- (D 1` N Cz— CL CO as � � c O CD CL V � a �y � C T T M N M M T N to O O CaM M M '�t � ui U E ELL Q T O T O T Q T T O T� O T Ln N M N C'9 M M M CM CO Ch M M M O V CO � o 0000 o M T Oas C O M M w VyO w N In T T T T O C cisC (D (D (D CD 6 M O O 6 '•l U m (a1 T E Q a U L L L CV ellU CU o C nE �' EE J -Cz) u2 < :2 < CAOZ ❑ 1- 3�� I COD 0) N0) ti 0 0 0 M COD co � qtr N T N r N M U T O CC � a) N ca > L 0 0 CD 0 T 0 T 0 T T 0 O �+ O M 0 O CD O coGO O O co O O O CD O 1�- O t` CD I� CD 1� 1�- CD 1� CD N N — CL C6cu cc � U � � c oCL .�` co '� lf) CD O ti O CO O w r V E ~ CD U- LO 00 v- N M N M M M M M M M M M M co O > O � mocu . o rC •� � � N T � CD CO M r CL7 r O � O q O CA Cb N Uf T T T T O C Oc U CD E r 2:10C', 5 U CL CL L L L O � ? N cD E E Q �+ a) ai cz � L2QCO0ZQ O 3'la 1� 0 0 ( 0 0 0 0 0 0 C7 M Co a) c) Ul) T V- o o V T T T T N co o U) W CII > L cn NN � W T T V V T T O ch O co O co O O co O co O co C13� 5 CC P-- CC I� r� CO CO I� N caca a co a U s c h c •� 0 CL •a O O O ti CCDD�� � cM N coOCA O as W to Ln O ti ti O CO ti to O } U (D C� E Q T M T O T Q T T O T� O T LO h a .�- Co MNMcr) mm ochchchc+ m w O `D 0 o h � . �ok -OR lolo� � 8R �ORI %0�.01 � %OR N c UN T V CO CD CO T Co T O It O M Cl) Cn '• O CO N Ln T T T T O Um C 6 CD CD i A 1� O E O coCD T ms Con m U CL a L L o m E E ` .L >+ >+ cmQ > U M coL 2 < 2CL cu < 00 Z o � 3-!3 O N 0 0 0 0 0 0 0 0 a) co 0 U r 0 Q > L NN 0 WW v T 'Rt T V V T V T 0) � O M O M O CO O O CO O M O CD — Ca Co Ca Ca � U 0 a) CL ca CD (D CO CO CA M O O CA CA I� LO Cl E r T O !C E LL Q VQ/ T O r M T O T O T T O T O T Ln O M N M M M M M M M M M M c0 O 0 M o O as r V N T It W CO M ,A TCO T O V O ca c Y M M CO V C) CO N / r T T T O cz E 0 j cD (D cD Cp Gi CA G O 6 6 I� 6 00 U a) c4 T CD 4� o � CL U L L L Q) L f'1 ii 0 � _ _ E E Q 7 C a m > > 0o v O � LL Q0Z0 I- 3`� M O O M N N M tO CO LO O M LO CO w 94, M w (O w to O N O n M M M N N N N N M T U Iti O a: ` O N cC >_ L O Ln O LO O Ln O O LO O LO O Ln 00 O OD M M LO c0 c0 Ln c0 Ltd c0 c0 CO n n n n n n n n n n n n r r a ca ca AU 0 CL o -a n co O N c0 co N (O O) co to t O � � M ('� M � � � In Ln W .o >: U E Ln �C E d T yy T O T O T T O T Q T LO O p w y O N M M M M M M M M M M C) o as Z.. \ \ \ \ \ \ \ \ \ \ \ \ c U M T M r 0 Nr O CU (� M M V M M N A T T T T O CM C ? m w w (O cD U c4 -p t- ai o CD CL U d L L L C �+ ca Scz cz J TW cm a O > V 75 = 3�l� CG N M �t M to d N N 0 O In M (O O W M W W � r qt In M co o Y M N M r r r N M T- N N O U) C', L N 5 W oo �noLno. o �noLno Ln � co o�nc� Ln co �n ao Oo (n co un co co n n n n n n n n n n n n T co co cc U U � � c O CLm A C N n T n OWWMMNO O 0 T M � M 0 Mco O W > v m E Q N O T wI� T O T O T T O T O r LO CO 00 .- U M N M M M M M M M M M M C.0 O >+ as N r Cr W W M r M r O V 00 N 0 r T T T co E j (C (C C6 a0 6 6 C O 6 6 ti CO C i U Q c r oCDN o. U a a) L CD m O cacc? L = �U Q cz CD CZ Q Cz _ a o O � LL2Q0 z 0 �- 3 v«v ti a) ccr) 000 O O O O N LO 000 C00 Cf) N *— N r N cr) � U r O N _CD N L4 WW �, 000000000000 LO C13aD o ao LO aD LO o o Ln aoLn o CC) a -u ti r%-ti r` r� r` r` r` N r� N N r — a of cc cc � U � � c o 5 � � a a oovrLf). or`iaooCC) � citi (°,rCOa� o � � � Ln Ln LncDrr� ao0or. r� Lnv o `° E E d C4 0T W T Q T Q r T O r O T' LO 00 0 M N M M M M M M M M M M co C O co co Z+ \ \ \ \ \ \ \ \ \ \ \ \ o U V N r co (D M r CO r 0 qt O M M M 4t O7 M N LO r r r r O Ccu C = (C (D (D CO O) O) O O ci O) r` (C G U m cu 7 r O E a� � 5 U d L L L a� a� O cc E E Q 3 `l7 0 0 0 0 0 0 0 v CD N O T T LO +' U O CC rn a) m c4 > L N � "may .�' 000000000000 Ln CO O CO In CO to CO CO Ln CO Ln M CO c "co rr� titi � tir� r� nr� r� r� r ca Ln � U L c oCL aL V N T V O W M r M *- 0 19 O C M M CO � M CO N Ln r r T T O T T C W } U E T �C U- E N O r CO r O T O r r O T O r Ln CD O M N M M M M M M M M M M (O O C M T Q NO-01 NOR Nco� NO-01 �0-01 NO-01 NOR Neol NOR N* It N T V (O (O M T 00 T O 'it O ca MM CO 14' O CO N LO T r T r O 0. asN (6 (66C6MMOOMMr,: 6 O (O E a = r r O ►•1 U m E m CLCD U a L ` � L ^Ol cm CL U U O 0 O 3�t V MEONG AGENDA DATE loll-R3 ITEM # MEMORANDUM 020UNCIL O'CDD DIR August 16, 1993 �� ❑ FIN DIR e O ❑ FIRE CHIEF ttTTORNEY ❑ PW DIR LERKIORIG ❑ POLICE CHF ❑ MGMT TEAM ❑ REC DIR TO: John Dunn, City Administrative Offic I� ❑ C READ FILE ❑ UTIL DIR 1. 17J' ❑ PERS DIR VIA: John Moss, Acting Utilities DirectoVM FROM: Gary Henderson, Water Division Manager 4w" R E C E W E D AUG , 6 1993 SUBJECT: Salinas Reservoir Expansion Project Update CITY CLERK SAN LUIS OBISPO,CA Per you request, the following is a brief update on the schedule of the Salinas Reservoir Expansion Project. There are two major hurdles that must be cleared in the near future to allow the project to proceed: 1.) the transfer of ownership of the dam and related facilities and 2.) the Council's certification of the environmental impact report (EIR). As you are aware, the transfer of ownership of the dam and facilities from the U.S. Army Corps of Engineers to a local agency must be accomplished prior to the start of construction. The Corps has stated that the expansion project will not be allowed to proceed unless the property is transferred. On November 17, 1992, Council directed staff to proceed with the alternative transferring ownership to the County contingent on formulation of an agreement between the City and County protecting the City's concerns. A working group of City and County staff was created to assist in the creation of the agreement between the City and County to allow for the property transfer. The committee consists of City representatives: Ken Hampian, Jeff Jorgenson, and Gary Henderson; and County representatives: Lee Williams (Administration), John Jenkins (County Council), Glen Priddy (Engineering), and Tim Gallagher (Parks). The first meeting of the committee was held on January 8, 1993. Subsequent meetings have been held at least once a month since that time. A draft agreement as been developed through many iterations of review and revisions. There are still a number of items which pose problems to solidifying the form of the agreement. Staff anticipates that the draft agreement should be available for Council review by December 1993. The other critical component of the project involves the preparation of the environmental impact report. The work on the EIR was held up until conceptual recreation relocation plans could be finalized to the satisfaction of the County Parks Department. Conceptual recreation relocation plans were completed in June of 1993, and the EIR preparation has been proceeding since that Salinas Reservoir Expansion Project Update Page Two . time. The draft EIR is expected to be released for review in October of 1993. The final EIR is scheduled to be presented to the City Council in January of 1994 for certification. Following completion of the two critical components identified above, there are a number of additional steps which would have to be accomplished prior to proceeding with construction. The items are listed below with estimated time frames necessary to accomplish each task. Optimistic Task Time Frame Completion Date 1. Ownership Transfer: Legislation Allowing Transfer 1 year January 1995 Studies Necessary for Transfer 6 months September 1994 2. Permitting 1 year July 1995 3. Design 1 year March 1995 The project has many hurdles to cross and the above estimates are not a worst case scenario. With construction estimated to take 18 months, the optimistic completion date for the project is December 1996.