HomeMy WebLinkAbout11/00/1990, AGENDA l
AGENDA PACKETS FOR ADJOURNED MEETINGS
FOR MONTH OF NOVEMBER 1990
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*Denotes action by Lead Person
No asterisk-information only
AGENDA 'x
ADJOURNED MEETING OF THE CITY COUNCIL
TUESDAY, NOVEMBER 27, 1990 - 7:00 P.M.
C,
CALL TO ORDER: 'Mayor Ron Dunin L
ROLL CALL: Vice-Mayor Jerry Reiss, Councilmembers Peg Pinard, Penny
Rappa, Bill Roalman, and Mayor Ron Dunin
COUNCIL MEETING CAN BE HEARD ON KCPR FM 91.3
I\
PUBLIC COMMENT
(Not to exceed 15 minutes)
Immediately following roll call, members of the public may address the City council on
items that DO NOT appear on the printed agenda. Please observe the time limit of three
minutes. A speaker slip (available in the Foyer) must be filed with the City Clerk prior to �
the beginning of the meeting.
As a general rule, action will not be taken on issues not listed on the agenda. Staff will
generally be asked to follow-up on such items. The Council is interested in hearing from
the public regarding issues or concerns of the community and welcomes your input. {
DUNN *P.C. I - George William Schroff Jr. expressed concerns about'operations of the EOC Homeless
Shelter Program.
BUSINESS ITEMS
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1. WATER SUPPLY STATUS AND DEVELOPMENT (HETLAND/517 - 1 HOUR)
Consideration of the water supply status and development report.
Page 1 of 3
a
Council Agenda November 27, 1990
RECOMMENDATION: Provide staff direction as per summary. The staff
recommendations are summarized into two categories: Water Policies and Staffing,
and Water Supply Projects.
A. Water Policies and Staffing
1. Water Policies - Direct staff to develop an amendment to the Water
and Wastewater Management Element to incorporate a key water
strategy policy for a balanced water resources program.
2. Wastewater Reclamation - Authorize the position of Wastewater
Reclamation Coordinator to develop and implement a detailed
wastewater reclamation project and direct staff to proceed with the
recruitment.
3. Water Projects Staff - Authorize the position of Water Projects
Manager and direct staff to retain the Water Projects Manager and
secretarial support for the implementation of the adopted water supply
projects.
B. Water Supply Projects
4. Salinas Expansion Project - Authorize retention of the Salinas
Reservoir Expansion consultant, Woodward Clyde, to begin design,
permit processing, and EIR development for maximum yield of the
project.
5. Desalination Authorize retention of the Desalination consultant,
James M. Montgomery Engineers, to design, processing permits,
development of EIR for the Rroject, and develop interagency
agreement.
6. Hansen and Gularte Creeks/Reservoir Canyon - Authorize retention
of the Hansen and Gularte Creek consultant, Boyle Engineering, to
design site facilities, purchase of treatment facilities, process permits,
and development of EIR for the project.
The necessary amendments, resolutions, and contracts to specifically accomplish the
above recommendations will be presented to the Council in the future.
HETWD ** FINAL ACTION. Council supported the Hansen/Gularte project;reinforced a multio-
voGES ** source water policy, directed staff to proceed with the project definition of a
desalination plant including meeting with City of Mono Bay and P.G. & E. officials
as to a cooperative effort to come back for Council review on 12/11/90; reaffirmed the
cloud seeding program; and directed that consideration of Recommendations A-2, A-
3, and A-4 be deferred until 12/11/90.
Page 2 of 3
Council Agenda November 27, 1990
2. ELECTION CONCERNING STATE WATER PROJECT (HAMPIAN/324 - 1
HOUR)
Consideration of an election concerning State Water Project.
RECOMMENDATION: 1) Determine the timing for an election concerning City
participation in the State Water Project, and 2) Determine whether the election
should be binding or advisory.
HAMPIAN ** FINAL ACTION. Due to the lateness of the evening, this item continued without
VOGES**
discussion.
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COMMUNICATIONS
(Not to exceed 15 minutes)
During the balance of this meeting, any Councilmember or the City Administrative Officer
may informally update the City Council of written or oral communications and ask for
comment and/or discussion. State law provides that Council take action only on such
matters which have been noticed at least three days in advance of the meeting unless
special circumstances are found to exist. Formal action or approval is not preferred and
such items should be continued to the next Regular Meeting.
VOGES* COMM. I - City Clerk directed to contact Susan Trager of the Nacimiento Regional Water
Management Advisory Committee for a joint meeting regarding Water Resources Management
Issues.
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A. ADJOURNMENT
Page 3 of 3
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Pam's Agenda
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ADJOURNED MEETING OF THE CITY -(All .mtgs.unless o/w noted)
TUESDAY, NOVEMBER 27, 195 AIA President - --
ox4-.
NASI President
BIA (in box) '
CALL TO ORDER: Mayor Ron Dunin Chamber of Commerce(in box)
Housing Authority(in box)
ROLL CALL: Vice-Mayor Jerry Reiss, Council yKADE—(unt1e-3/31/91)-
Rappa, Bill Roalman, and Mayou _KCOY
KCPR
,,KDDB
�KEYT
iiiitiiiiiiiiiiii•iiiiititiiiiiiiiiti•itiiiititiii•i _
PUBLIC COMMENT �KKUs --Y
--
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(Not to exceed 15 minutes) ,KEC KSBSB
,League of Women Voters!
Immediately following roll call, members of the public may, - -�•F k�
items that DO NOT appear on the printed agenda. Please o Mustang Daily
minutes. A speaker slip (available in the Foyer) must be file _�Pac.Bell Right of Way -of fice*e-
the beginning of the meeting. _Planning Comm. (in CDD box) , )
As a general rule, action will not be taken on issues not list ..Telegram-Tribune
generally be asked to follow-up on such items. The Council) .-U*lOCAL Land & Development Co.**i
( En-velopes provided)l
.
the public regarding issues or concerns of the community an..
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BUSINESS ITEMS
1. WATER SUPPLY STATUS AND DEVELOPMENT (HETLAND/517 - 1 HOUR)
Consideration of the water supply status ancTtea �oortj ss
03ISPO )
rm ;::;c penalty
of Perjury that I am employed
Page 1 of 3 y pSar, Luis Obispo in t;+
' = �. City Clerk's
clit*rtraent; and t;:aL I posted his Age dnear the
`relit door of City !laic on
Date ignature
Council Agenda November 27, 1990
RECOMMENDATION. Provide staff direction as per summary. The staff
recommendations are summarized into two categories: Water Policies and Staffing,
and Water Supply Projects.
A. Water Policies and Staffing
1. Water Policies - Direct staff to develop an amendment to the Water
and Wastewater Management Element to incorporate a key water
strategy policy for a balanced water resources program.
2. Wastewater Reclamation Authorize the position of Wastewater
Reclamation Coordinator to develop and implement a detailed
wastewater reclamation project and direct staff to proceed with the
recruitment.
3. Water Projects Staff - Authorize the position of Water Projects
Manager and direct staff to retain the Water Projects Manager and
secretarial support-for the implementation of the adopted water supply
projects.
B. Water Supply Projects
4. Salinas Expansion Project - Authorize retention of the Salinas
Reservoir Expansion consultant, Woodward Clyde, to begin design,
permit processing, and EIR development for maximum yield of the
project.
5. Desalination - Authorize retention of the Desalination consultant,
James M. Montgomery Engineers, to design, processing permits,
development of EIR for the project
6. Hansen and Gularte Creeks/Reservoir Canyon - Authorize retention
of the Hansen and Gularte Creek consultant, Boyle Engineering, to
design site facilities, purchase of treatment facilities, process permits,
and development of EIR for the project
The necessary amendments, resolutions, and contracts to specifically accomplish the
above recommendations will be presented to the Council in the future.
Page 2 of 3
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Council Agenda November 27, 1990
2. ELECTION CONCERNING STATE WATER PROJECT (HAMPIAN/324 - 1
HOUR)
Consideration of an election concerning State Water Project.
RECOMMENDATION. 1) Determine the timing for an election concerning City
participation in the State Water Project, and 2) Determine whether the election
should be binding or advisory.
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COMMUNICATIONS
(Not to exceed 15 minutes)
During the balance of this meeting, any Councilmember or the City Administrative Officer
may informally update the City Council of written or oral communications and ask for
comment and/or discussion. State law provides that Council take action only on such
matters which have been noticed at least three days in advance of the meeting unless
special circumstances are found to exist. Formal action or approval is not preferred and
such items should be continued to the next Regular Meeting.
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A. ADJOURNMENT
-- Page 3 of 3
�-Mr. Don Smith Mr. James M. Montgomery ,'Chanber of Commerce
1111 jista Del Lago Engineers, Inc. 1039 Chorro St.
3LO; CA 93401 355 Lennon In. SLOP CA 93401
Walnut Creek, CA 94598
Vic Montgomery Woodward Clyde
RRM302 Design Grp. 121 Gray Ave. , Ste. 201
3026 CAS. 93401guera Santa Barbara CA 93101
SLOP CA 93401
Mr. Gary Kunkel h'Mr. Harold Miossi Boyle Engineering
P.O. Box 12757
571 Cuesta Cuesta Ranch
SLOP CA 93401 SLO, 'CA 93401 SLOP CA 93406
=Mr. Mike Spangler Thomas A. Murrell
1779 San Luis Dr. Ticor Title Insurance
SLOP CA 93401 1212 Marsh St.
SLO, CA 93401
'Hr. Ken Schwartz
201 Buena Vista Ave.
SLOP CA 93401
' Melanie C. Billig -e Mr. John French
1460 Mill St. Santa Lucia Hills Co.
SLOP CA 93401 285 South St.
P.O. Box 1796
SLOP CA 93406
Mr. Allen Settle Mr. Clint Milne
1244 Drake Cir. County Engineering Dept. #207
SLOP CA 93401 1035 Palm St.
SLOP CA 93408
+ Mr. Rob Rossi
3455 Vista Del Ciudad
SLOP CA 93401
Mr. Terry Simons
Development Services -/Y-Business Improvement Assoc.
i 3 35 &C 4k P.O. Box 1402
SLO, CA ••93401 SLOP CA 93406
I(IIp MEETING DATE:
city Of San .AIS OBISOO" - November 27 1990
+ Ze COUNCIL. AGENDA REPORT INUMBER:
FROM: William T. Hetland, Utilities Director
Cassidy Rowland, Administrative Analys
Gary Henderson, Utilities Engineerg*wa
Ron Munds, Water Conservation Coordinator
SUBJECT. Water Supply Status and Development
CAO RECOMMENDATION: Provide staff direction as per Recommendations Summary.
REPORT IN BRIEF:
The City of San Luis Obispo has experienced four years of below normal rainfall and
runoff. The Gay's current available storage is 5,881.42 acre feet (cif) with Salinas
Reservoir below its minimum pool; Whale Rock Reservoir is at 365995' of capacity and
is projected to reach minimum pool in the fall of 1992. Groundwater wells are
producing at approximately 2,000 acre feet per year (afy) with the groundwater table
dropping. The City will reach its critical action level (509of conservation) in late summer
of 199L Water conservation efforts are still excellent with consumption at about 50% of
the 1987 base year.
777 7
Projected water supply requirements-for full build out to the City's urban reserve line is
11,580 afy and is estimated to occur in 2015. With the addition of 820 afy to adjust for
the loss of yield due to reservoir siltation and the addition of 2000 afy as a planning
reserve, the total water supply requirement is 14,400 afy by the year 2015. The City's
current safe annual yield is 7,860 afy, leaving a supplemental water need of 6,540 afy to
be developed over the next 25 years.
Water supply options to meet the future Total Reservoir Storage ±
water needs of the City were reviewed. The atter minimum pool !
Water Supply Summary in Attachment 3
provides a brief overview of the projects. i
Staff recommends the City proceed with a i'w
combination of the following projects:
Salinas Reservoir expansion, desalination of -� 2
ocean water, Hansen and Gularte Creeks, a
continued emphasis on water conservation,
and wastewater reclamation. A decision on
the State Water Project will be made after 10.
a City wide election is held. Expansion of s
the Salinas Reservoir requires remedial o
JIM
work to the dam for stability and '9B8 1987 'sem '
modification of the spillway to increase Figure 1 Total Reservoir Storage, October 1990
capacity. This will. provide 1,600 of yearly
additional yield. The addition of a package plant to the Hansen and Gularte creek
supply will provide approximately 560 of per year of yield. The project is estimated to
cost 5532,000. Work on a desalination project should be started immediately because of
the time frame required for obtaining the necessary permits and equipment ordering. It
is estimated that desalination could provide 2,000 to 3,000 afy additional yield.
I Staff recommends retaining a contract wastewater reclamation coordinator in order to
direct and develop a comprehensive wastewater reclamation pro b am. A contract water I
.............. .... I -
PageWater Supply Status and Development
g
projects manager is also being recommended to coordinate water project development.
The water conservation program will continue its efforts
Programs as appropriate. to save water and will expand
DISCUSSION
BACKGROUND
The C5 I
tY of.San Luis Obispo has
experienced four years of low runoff and � '
rainfall- It has implemented mandatory
water conservation measures and
developed emergency water resources.
This report will outline the current status s " �
of the City water resources, provide
estimates of future water supply needs and I Ri I
review options that are available to the 1666 1a 1 low 't
City to meet those future needs. Much of IMI MWM=PW®aq,anw
the data in this report comes from the
Revised Water Management PIan staff is Figure 2 Salines Reservoir Storage.._ -:
currently writing. The Pian is a -
requirement of the State and must be submitted to the Department of Water Resources
by December 31, 1990.
WATER SUPPLY STATUS
20
As of November 1, 1990, the City of San 1e
Luis Obispo has 8,60332 of of water in 76
reservoirs, of which 5,881.42 of is usable 14
storage (see Figure 1). Salinas Reservoir m "' 12
.storage (Figure 2) is below minimum pool
at 1,621.9 af. The City's share of Whale to
Rock Reservoir totals 6,981.42 of less
19100 of minimum pool equals usable e
storage of 59881.42 of(Figure 3).
2
Groundwater well production has fallen o "'"<' ` `''; "7iY= aa;_:, ;u� • . ;..,>.;;. •„
,see 1W7 +see teesi>,t3;#,. .
Off over the past few months due to a
dropping groundwater table (Figure 4). P°"®"9
Currently, groundwater provides about 150 Figure 3 Whale Rock Reservoir Storage
to 160 of per month to City customers.
Groundwater currently provides about 37% of the total water requirement of the City.
Mandatory water conservation is str1I very effective as shown by the Water Conservation
Report Card (Figure 5).
October at 44% of tConservation continues to be very high with the month of
he 1987 IeveL Water use was reduced by an average of 51% for the
prior four months, since the City went to 35% mandatory water conservation.
I OL
Water Supply Status and Development
Page 3
PROJECTED WATER SUPPLY
0 The Total Storage Carve (Figure 6) is
part of the City's Annual Water Plan.
It is a model to estimate the City
1 W pi
based on
reservoir water storage
historical water use, reservoir data and
available groundwater supplies. The
curve also shows the different action
levels at which various conservation
measures are implemented.
The model is used to forecast the City's
Figure 4 Groundwater Production, water supply position and when to
October 1989-90 make certain recommendations. The
curve has been revised to take into account a
lesser amount of groundwater production . 80,
than previously estimated.--Initially,,- 70,
groundwater production was estimated at 4a
2,400 afy. Based on our recent production IM,
history during this drought and the 40,11,
groundwater basin study, it is recommended �o
to use only ZOOO afy during emergency
periods. This lower level of groundwater
production also results in changes in the Jun
action levels since they too are a function of PVC&t CNISWvd SAM MWO
groundwater production. Attachment 1 IR=wvc0j—MWwWxw
shows the new action levels. I EMWaw _J]
Figure 5 Conservation Report Card
The net effect of these changes to the
Total Storage curve is relatively minor;
the curve appears unchanged due to
offsetting adjustments in well production
and lake evaporation value& The action
levels are higher with the critical (50%)
LL action level occurring at 6,300 of of
S~&352 storage instead of 6,000 aL This results
in 50% conservation occurring in August,
1991 instead of October, 1991. From a
decision making point of view, twq
months is not significant since only swings
PROJEC110N WrrH ZWO AF WELLS of six months or more would change
recommendations regarding timing for
implementing conservation measures.
Figure 6 Reservoir Storage Model, October 1990
Water Supply Status and Development
Page 4
The Total Storage Curve indicates Council made the right decision to begin the 35%
mandatory water conservation program last spring even though the carve had not yet
reached the Severe Action Level. Prior to implementing the 3596' mandatory program,
reservoir storage was below the worst case projection. As of November 1990, storage is
now at the projected level. This is the result of increased conservation and groundwater
well development due to early Council action.
This curve also shows if the City were to experience two more dry years similar to 1989-
90, the reservoir levels will reach the minimum pool at both reservoirs in November,
1992. In other words, the City has 24 months in which to develop additional supplies
before it will run out of water, based on the worst case scenario.
WATER CONSERVATION ACCOMPLISHMENTS OF THE PAST FIVE YEARS
The City of San Luis Obispo has been very progressive in its water conservation efforts
at a time when few other agencies showed effort in conservation. The Mandatory Water
Conservation Program has been extremely successful in achieving the City's goal of
reducing water consumption by 35%. Water savings since January 1990 are down
approximately 4395' from the 1987 levels. Since the implementation-of the 35% program
in June 1990, the City has reduced water consumption by nearly 5096. A listing of the
past 5-years accomplishments and potential water conservation programs to be
implemented are presented in Attachment 2.
woos"use(&4% waft MM) WATER SUPPLY REQUIREMENTS
SWAF smIV
The City currently has a safe annual yield of
7,857 afy, shown in Figure 7. This is the amount
of water that the City could use during our
Figure 7 Current Safe Annual Veld historical worst case dry period of six years and
not run out of water. The safe annual yield is a
measure of the City's available water supply to
meet the current needs of the community and future requirements.
The City's future water supply Table 1 POPULATION PROJECTION, 1990 -2015
requirements were developed by 1990 1995 2000 2005 2010 2015
determining the population for a
specific study area and multiplying 41,500 43,500 45,400 47,700 50,100 53,000
that by a per capita water use
factor. An adjustment factor for siltation and a planning reserve were then added to
determine the City's total water requirements. The water supply requirements were
determined for a specific study area encompassing the City limits of San Luis Obispo
and some surrounding areas. The boundaries are basically the Urban Reserve Lane as
established by the City Council in 1977 and reaffirmed in the current general plan
update process.
I —
Water Supply Status and Development
Page 5
The City's Residential Growth Management Regulations adopted in 1982 are the basis
for developing future population projections. These regulations set population growth at
an average annual rate of 2 percent during the 1980's, declining to 1 percent after 1990.
Table I lists the population projection from 1990 to 2015 basically increasing at a 1%
compounded rate. Under the City's General Plan, full development would
accommodate a population within the City limits of 46,000 people and 53,000 within the
urban reserve limit.
As seen in Figure 8, the city limit population
level is estimated to occur around 1997 and
the urban reserve limit around 2015. Using 1 JM�Poo"', lal appropriate population levels in planning �P^supplemental water supplies will assure San '0Luis Obispo that adequate water supplies are 30available. This planning will m;ninmi
problems during water deficient periods and
mitigate the need to implement stringent
water conservation measures should water
demand exceed supply limits. An increased
supply will also provide more flexibility toeo es eo o
the City regarding its future water needs. �� g Population Projection 1980-2015
—1 Development of major water supply facilities
requires extensive lead time, ten years not being uncommon. It is therefore customary
to review water needs on a long-term planning period of many years. We have chosen a
planning period of 25 years, from 1990 to the year 2015. But it must also be understood
that additional water requirements may likely extend beyond this period.
42- = , Per capita water use is a unit
measurement of the water used by a
.0 180 community. It is calculated by dividing
L
38 180 the total water used by the community
170 population. This measure includes
si ,w residents
ai, commercial, governmental
34, ,so and industrial water uses, as well as
,�, water unaccounted for such as leakage,
� �� fire flows and meters under registration.
r
2e no iseo 110 i Since 1984, there has been a dramatic
-,- ��pc increase in the per capita consumption
Figure 9 Gallons Per Capita Use, 1970- 1989 approaching 200 gpcd seen in Figure 9.
This sharp increase in the per capita
consumption is largely attributed to an
increase in commercial and industrial development and an escalated commuter
population_ Based on this analysis and the assumption that water conservation will
slightly reduce consumption and offset commuter influences, 195 gpcd is used for
Water Supply Status and Development
Page 6
projecting water requirements. Due to — 12
the drought, water use over the last two:
-11
years has decreased to the 110 to 120
gpcd range. There are no predictions 10 1
as to the level of conservation ®" i
sustainable upon end of the drought,
therefore, 195 gpcd will be used to
represent future per capita use.
Water requirements, based on the
population projections and 195 GPC
use, are shown in Figure 10. The City 80 es Bawd on les ciac use
requires 10,050 afy of water for full
development within the existing city PCpid8U M E'kr" Pop. AOWAF $'VMhMdAF
limits and 11,580 afy by 2015 when the Figure 10flesource Need at 195 GPC
urban reserve limit population is
reached, given current zoning.
,:-- - It should be noted if the City was
=:=t_:� not in mandatory water conservation,
®K the water consumption would exceed
P 4=Ai the currently adopted safe annual
yield also shown in Figure 10.
Udw"Aaw°°A"esu Therefore, development of additional
"` F use ) �,�"(142%)'°�
° yield will be required for the City to
issue new building permits, not
Figure 11 Safe Annual Yield with Planning Reserve including those due to the retro-fit
program.
Studies have shown reservoir siltation reduces Table It Safe Annual Yield, 2015
the storage capacity and safe annual yield over Sours kFF
time. Since it is not economically practical to
remove the silt, it is necessary to develop Wells Soo
supplemental water supplies to offset the
Salinas 60
siltation losses. Siltation loss at Salinas and Cooperative Use . 500
Whale Rock reservoirs is approximately 820 of Urban Reserve Deficit 5,720
total over the next 25 years. Siltation Deficit am
Planning Reserve 2.000
The City has experienced problems with safe Total Acre-Footage 14,400
annual yield determinations in the past.
Changes may occur in the future due to 'live
stream" requirements, new hydrological data
based on the current drought, and changes in water rights law, eta For these reasons, it
is prudent to have a planning reserve of additional water supplies to account for future
unexpected conditions. Staff recommends the City develop an additional 25% increase,
or about 2,000 of of its safe annual yield as a planning reserve.
I �
Water Supply Status and Development
Page 7
The City must develop a total of 6,540 of over the next 25 years, summarized in
Table IL Staff recommends the City establish a policy to obtain a safe annual yield of
14,400 afy in order to meet its current and 25-year future water needs, account for
siltation in its reservoirs and to include a planning reserve for any unexpected future
events. By the year 2015, when the Urban Reserve Limit population will be reached,
only 55% of the water needed will come from sources now on-line. This means over
45% of the water the City will need has yet to be developed.
WATER SUPPLY PROJECTS
EMERGING MULTI-SOURCE WATER SUPPLY POLICY
The City of San Luis Obispo's early water supplies came from local creeks and
groundwater. For many years, groundwater was the primary water supply for the City.
When the Salinas Reservoir was developed, it became the principle supply because of its
better water quality. The Whale Rock Reservoir was added to the City's supplies in the
1960's. For many years, from the 1960's to just recently, storage in the two reservoirs
served as the CNty's only water supply. The City has just recently returned to
• groundwater during this time of drought. The recent history of water supply
development has resulted in an informal policy of multi-source water resource projects
for the City. With the many new water resources project alternatives the City is
currently considering, it is logical to adopt.a formal policy supporting a multi-source
water supply for the City.
Recommended Council Action: Direct staff to prepare a resolution to adopt the
following strategic policy statement:
The City of San Luis Obispo will continue to develop and use water
resource projects to maintain multi-source water supplies, and in this
manner, reduce reliance on any one source of water supply and to increase
its supply options in future droughts.
EXPANSION OF SAUNAS RESERVOIR
The City retained the firm of Woodward Table Ill YIELD ESTIMATES, SAUNAS RES.
Clyde Engineers to perform a feasibility Spillway Increase (ft) 10 . 20
study for increasing the storage at the
Salinas Reservoir. The study covered three Storage Volume (al) 29,330 39,300
basic areas; geotechnical and dam stability, Total Yield (afy)* 750 1,650
hydrology and costs, and permit
requirements and significant environmental *with cooperative use
issues identification.
The stability of the dam during an earthquake and its ability to handle a maximum
probable flood was reviewed. Numerous design concepts were used to evaluate the
feasibility of raising and widening the spillway including operable gate alternatives, fixed
barrier alternatives, and spillway modifications. The designs were evaluated on the basis
, � P7
Water Supply Status and Development
Page 8
of raising the existing spillway by 10 feet or 20 feet. Table III presents the yield
estimates with these modifications to the spillway elevation, assuming coordinated
operation of Salinas and Whale Rock.Reservoirs for maximum benefit. Raising the
spillway would inundate additional areas behind the dam. This increased body of water
would enhance both the fishery and the habitat for aquatic wildlife. It would also
impact and require relocation of some of the existing recreational facilities around the
reservoir. Water quality from the Salinas Reservoir would not likely change after
increasing the level of the spillway. The initial environmental analysis has not indicated
any significant environmental impacts that would preclude development of the project.
Initial discussions with the State Water Rights Board indicate the City's water right
permit would not have to be amended. Approvals would have to be obtained from the
Army Corps of Engineers, the California Division of Safety of Dams, and the State
Department of Health Services.
This is a Iong-term project which is rainfall dependent. Total cost of the project would
vary from $2.7 million to $7.25 million. This translates to a cost of $208 to $506 per af.
The water from this project would be available for use in 30 months, barring major
setbacks in permit processing or other requirements.
Recommended Council Action: Staff recommends Council authorize the Consultant,
Woodward Clyde Consultants, to begin design of the expansion; develop the
Environmental Impact Report; and to obtain the required permits. Staff further
recommends direction to begin discussions with the Corps of Engineers and the
County of San Luis Obispo regarding ownership of the reservoir and payment for the
required remedial work
DESAUNATION
The DesaIination Feasibility Investigation was prepared for the City by James M.
Montgomery Engineers. The study evaluated various methods of desalination including
reverse osmosis, vapor compression and distillation. Site options, joint ventures,
permitting requirements and financing were also reviewed.
Water Ievels at both reservoirs will reach minimum pool in approximately two years if
the drought continues. As desalination is the only water supply alternative not rainfall
dependent and if this alternative is to be undertaken, the project must be "fast tracked"
in order to meet this tight time frame. Several project implementation methods have
been evaluated to meet this timetable. The schedules also include a project termination
or slowdown cutoff date in March or April of 1991 to allow for a change in direction
based on whether rainfall is received and whether this project is viewed as a short-term
or long-term water supply.
The consultants determined 3,000 afy of desalted water could be made using the
recommended reverse osmosis technology. Figure 12 shows the flow diagram for a
typical reverse osmosis process. The recommendation is based on capital costs,
operation and maintenance costs, decommissioning costs, aesthetics and environmental
concerns. During the early phases of the study, several potential locations for the
Water Supply Status and Development
Page 9
gg �
ao Wdub 3
r �v
.v
MaW Pond Dual WCM lrph PfadmiWaW
FIW R� Pats TN*
PSP
Figure 12 Reverse Osmosis Flow Diagram
facilities were reviewed. Due to the limited time available, emphasis was placed on'the
utilization of existing intake and outfall facilities due to the long permitting process
required to construct such facilities. Also, the availability of conveyance facilities was an
- important component of site selection...Based on these considerations, the best
alternative appears to be a site near the PG&E's Morro Bay Power Plant. The City of.
Morro Bay and PG&E have been consulted and are receptive to discussions concerning
the use of the existing facilities. The power plant intake could be utilized to supply
water to the facility and the discharge from the decal plant could employ the use of the
PG&E plant's outfall or the City of Morro Bay's wastewater outfall system. A plant
located in Morro Bay would be able to convey water to San Luis Obispo's Water
Treatment Plant using the existing Whale Rock pipeline.
Several potential joint venture participants in the area were contacted to determine their
interest in the construction of a desalination facility. Several indicated an interest, but
almost all elected to delay a commitment until the future of the State Water Project
became better defined. However, the City of Morro Bay is extremely interested in
participating in this project.
The project could be financed using City funds or be a "turn-key" approach using private
financing. The choice of which financing scheme to use should not have a significant
impact on the overall project cost.
Project implementation can be accomplished using a variety of schemes. One end of the
scale would be a full-service contract (i.e. privately designed, financed, constructed and
operated), such as Santa Barbara has done. The other end would be a conventional
project (Le. City hires a consultant to design the project, handle finances, bid the project
construction, and operates the plant). The recommended method may be a combination
of the two options.
The project could be separated into two components, equipment vendor and
conventional construction (site work, pipelines, etc.). A consultant would be hired to
write equipment performance specifications which would allow bidding for the
Water Supply Status and Development /
Page 10
equipment to proceed before site and pipeline design is completed. This is necessary
because the equipment is one of the critical components of the schedule. While the
equipment is being procured, the remainder of the project would be designed and put
out for bid.
The estimated capital cost for a 3 mgd reverse osmosis desalination plant is $19,500,000.
Depending on whether the plant is to be considered a short-term (5 years) or long-term
(20 years) supply, the cost per acre-foot would be $2,858 or $1,883, respectively. These
acre-foot costs include operation and maintenance expenses and costs are substantially
higher than other supply alternatives at this time, but this alternative is not rainfall
dependent.
The desalination process is an energy intensive process. There is a great variance in the
amount of energy the different methods of desalination require to produce product
water, but reversesosmosis and vapor compression consume significantly less energy per
unit of product. The cost of energy required for the reverse osmosis process is
estimated-to be $615 per of of product water based on current energy rates. This
equates to approximately 28% of the total cost per of based on $2,215 af. If the cost of
energy were to double in the future to $1,230, it would correspond to approximately
44% of the total cost per af. Energy, therefore,plays a very important role in the cost
of desalted water. The water from this project would be available for use in 24 months
barring major setbacks in permit processing or other requirements.
Recommended Council Action: Staff recommends Council autho.-*ze staff to 1) hire a
consultant to begin design of project, to obtain the required permA and to develop
the Environmental Impact Report; and 2) develop interagency agreements for the
project.
HANSEN AND GULARTE CREEK
Hansen and Gularte Creeks are two small creeks which run off the Cuesta Grade north
of San Luis Obispo. The City obtained water rights on the creeks from private property
owners in the early 1900's. This supply was used for many years by adding chlorine for
disinfection and discharging the water into Reservoir #1. This practice continued until
the State Department of Health Services required full treatment before the water could
be consumed. Since treatment was very expensive other sources were available, the City
stopped diverting the water into its reservoir and instead discharged it into San Luis
Creek.
Boyle Engineering was retained to determine the feasibility and cost of developing a
small treatment plant for these creeks. A treatment system would require a package
plant, new inlet transmission piping and control structure, chlorine feed system and
contact basin, and a filter backwash recovery system. The total cost of this project is
estimated to be $523,000 including 20% contingencies and engineering.
It is estimated the yield from these two creeks would be about 435 afy. One option is to
include the Firing Range Well in Reservoir Canyon in the treatment plant. This well
Ho
Water Supply Status and Development
Page 11
has only been used intermittently because of problems meeting the State's turbidity
requirements. By piping this water to the package plant, the total yield could be
increased to approximately 560 afy. The water from this project would be available for
use in six months, barring major setbacks in permit processing or other requirement.
Recommended Council Action: Staff recommends beginning design of site facilities,
purchasing treatment facilities, beginning permit application and developing the EIR
for the project.
STATE WATER PROJECT
The State Water Project is a system of reservoirs, pumping plants, canals and pipelines,
and power plants to deliver water from Oroville Reservoir and the Sacramento-San
Joaquin Delta to the State's 30 water service contractors. To date it has been a reliable
source for municipal and industrial contractors. San Luis Obispo County Flood Control
and Water Conservation District has an annual entitlement of 25,000 afy in 1990. It is
proposed this water would be delivered to San Iuis Obispo together with Santa Barbara
County's entitlement through the Coastal Branch of the California Aqueduct The draft
EIR for this project has been completed and undergone extensive public review. The
public comment is now being reviewed by the Department of Water Resources and the
final EIR is scheduled to be issued in the spring of 1991. Council has directed staff to
hold an election on the State Water Project.
Once the decision is made to build the Coastal Branch of the State Water Project is
made, the City will have to commit to the project or forever loose the opportunity to
participate in State Water. The water from this project could be available for use in 60
months, barring major setbacks in permit processing or other requirement.
Recommended Council Action: Recommendations for this item are covered in a
separate report and, at this time, only deals with the timing and type
(mandatory/advisory) of election.
GROUNDWATER BASIN ANALYSIS
The San Luis Obispo Groundwater Basin Evaluation was prepared by Boyle
Engineering. The purpose of this study was to define the basin hydro-geology and to
assess the City's current groundwater development program. Their conclusion is that
during the period of 1978 to 1990, the basin has not been in a state of sustained
overdraft. The long-term records indicate water levels do decline significantly during
drought periods but the basin recovers quickly.
The estimated storage capacity of the basin is 23,900 aL This is essentially in agreement
with the California Department of Water Resource's 1958 published estimate of 22,000
AF. The estimate of "sustained yield" of the basin is defined as the maximum quantity
of water that is available from groundwater on an annual basis. Boyle estimates the
sustained yield to be 5,900 afy. A large portion of the basin underlying the downtown
consists of a relatively thin layer, characterized by wells of low to moderate yield (100
Water Supply Status and Development
Page 12
gpm or less). Higher yielding ground water zones exist in the southern portion of the
City, with wells up to 1,000 gpm. However, this area is heavily irrigated for agricultural
purposes with high competition for the groundwater.
The current groundwater program uses six municipal wells and two or more irrigation
wells. Approximately 409o', about 160 of per month, of current domestic demand is
being met from groundwater supplies. Four of the existing wells are now showing sharp
declines in pumping water elevation and are being operated on a rotation basis. Based
on the above analysis, the opportunity for additional well development within the City
limits during the current drought is limited. Also the City's current identified yield of
500 afy from groundwater is realistic. Boyle concludes the City can extract several
thousand acre feet (2,000 to 3,000 afy) of groundwater per year if steps are taken to
increase available recharge from the wastewater treatment and if the basin is properly
managed to better utilize recharge from surface stream flows. Additional long-term
sustained yield from groundwater is not practical.
The City is still pursuing the use of some private wells in order to spread out the wells
within the basin and to obtain a site for relocation of the existing carbon filtration tanks.
Recommended Council Action: Staff recommends no further expansion of the
groundwater program and the existing groundwater wells be maintained as a part of
the City's water supply at the currently adopted safe annual yield of 500 afy.
COASTAL STREAMS DIVERSION PROJECT
The Coastal Streams and Storage Project is a joint project with the Whale Rock
Commission and the City of Morro Bay. The project proposes a series of small seasonal
dams on the three coastal creeks between Morro Bay and the Whale Rock Reservoir.
High runoff flows during the winter would be pumped back to the Whale Rock
Reservoir for storage. The study includes review of the environmental impact on the
streams as a fishery and habitat. Due to inadequate runoff these past three years, the
fisheries stream analysis has not been performed.
The City contracted with Leedshill-Herkenhoff to review the project in light of the City's
current water resources and determined the direct benefit to the City of San Luis .
Obispo. Their analysis shows the City could receive from 60 afy up to 230 aL The
limiting factor in the yield of the project for the City is a constraint in the Whale Rock
pipeline. The cost of the project is $7.2 million and water costs range from $1,900 to
$9,500 per aL
Recommended Council Action: Staff recommends no action at this time since the
fisheries analysis has not been completed. However, due to the limited yield, the
high capital cost and the high water processing costs, this project appears to have
limited feasibility.
Water Supply Status and Development
Page 13
NACIMIENTO RESERVOIR
The Nacimiento Reservoir is owned and operated by the Monterey County Flood
Control and Water Conservation Distria San Luis Obispo County Flood Control and
Water Conservation District has an agreement with Monterey for 17,500 afy. About
1,300 afy are used around the lake area, leaving 16,200 afy for distribution to other parts
of the County. There are currently no specific allocations for the Nacimiento water to
the other agencies in the county. The probability is that the North County will desire to
retain a substantial portion of the available water. Due to the length of the supply line
to San Luis Obispo and without the agencies to share in the project, the cost to the City
could be quite high. With the primary focus on the other water supply alternatives,
Nacimiento Reservoir will probably not be developed until sometime in the future.
Monterey County has recently completed a study of additional water resources. A
number of the options involve Nacimiento Reservoir and these may provide the
opportunity for joint participation with other agencies.
Recommended Council Action: Staff recommends no specific action at this time
other than to continue to monitor the activities of Monterey County in the
development of additional water resources.
TANKER DELIVERY OF WATER Table N TANKERED WATER COSTS
Term AF `Cost/AF
In April, 1990, the City of Santa Barbara solicited 5 yr 2,500 $6,900
proposals to evaluate tankering of water for two 51000 $4,000
contract duration possibilities: (1) a five-year 7.500 $3,200
duration with a commitment to purchase a 13,600 $2,700
minimum of 2,500 of of new water yearly for the 10 yr 5,000 $3,100
first three years and to purchase water thereafter on 10,000 $2,500
an as needed basis; and (2) a ten-year duration with 25 n 10,000 $2,000
a commitment to purchase 2,500 afy and on an as
needed basis for the final seven years. The RFP * does not Include capital costs
further required the successful water supplier to be
able to supply up to 5,000 afy for the full five or
ten-year contract duration, if needed
The cost of the new water in the proposals being evaluated by Santa Barbara are
presented in Table IV. In an informational report prepared by Boyle Engineering for
the City of Ventura, tanker delivery of Canadian water was outlined. The following is a
summary of some of the thoughts presented:
1. Tankering potable water is not new, it is used in several places in Europe.
2. Canadian water is of excellent quality, however; tankered water requires chlorination
during transport and treatment prior to use.
3. Tanker loading facilities in Canada will cost between 2 to 5 million dollars.
Refurbished oil tankers would be used and they hold between 70 to 200 AF.
4. Off-loading facilities would cost between 10 and 20 million dollars to build. One
Water Supply Status and Development
Page 14
problem with tankering is the relatively shallow coastal water which will require
extensive offshore mooring and transmission facilities.
5. A round trip takes approximately 8 to 12 days with a daily cost between$20,000 to
$40,000. To be economically viable, the tankers would have to be off-loaded in one
to two days.
6. The onshore facilities required to receive the off-loaded water in one to two days
would need to be able to handle/store between 21 to 65 million gallons.
The City's treatment plant capacity now is only 11.5 mgd with a storage capacity of 4
mgd. Tankering is probably not viable as a source for a single city but may be as a
regional source; with a long-term contract for 20,000 afy the cost might be down to
$1,500 a£ The volume of water required to make the option economically feasible
appears to be much greater than the City needs. Importing water with tankers does not
appear to be a viable quick, inexpensive drought relief measure; however, it might be
viable as an option for long-term supply when compared with other options. Based on
the information available to us at this time, it appears that this option is roughly in the
same cost range as desalination.
Recommended Council Action: Staff recommends tankering of water not be pursued
at this time; further consideration may be in order should the drought continue or
other recommended options fail to meet expectations.
WASTEWATER RECLAMATION
In the past, reclaimed water was not considered a cost effective water supply and
subsequently was not included as a viable option in the water management plan. The
changing environment in water resources, combined with the high quality water that can
be produced by upgraded wastewater treatment facilities, has made reclaimed water a
potentially cost effective and available water supply. Reclaimed water must now be
considered a component of the overall water management plan for the City.
In order to facilitate the development of wastewater reclamation projects, the first step
is to hire a program coordinator who would:
- identify potential uses and users of reclaimed water,
- evaluate each potential use based on cost and benefit to the City,
- identify capital improvements necessary for installation of the required
infrastructure,
- explore available grants and loans for funding options, and
- develop a pricing structure and accounts for the sale of the water.
It is estimated the additional position will cost about $40,000 per year for a total of
$120,000. Program development should be coordinated with the completion of the
wastewater facilities improvements to allow water reclamation to begin as soon as
tertiary water is available.
Water Supply Status and Development
Page 15.
Recommended Council Action: Direct staff to retain a contract Wastewater
Reclamation Coordinator for a period of three years.
PROGRAM STAFFING
Should the Council choose to proceed with the projects being recommended, additional
Water Division staff will be necessary to coordinate project development. It is not
anticipated the new program staff will do detailed design and therefore not need an
engineer, the project staff would manage the water supply projects and would interface
with the design engineers and other professionals necessary to make the project a
reality. Requirements for the position will include experience in overseeing project
development, permit processing, environmental review, and contract administration.
Staff recommends a contract Water Projects Manager be retained on a four-year
contract. Clerical staff will also be necessary to support this position and assist in the
overall increase in the department's workload. It is estimated that the additional
positions will cost about $75,000 per year for a total of $300,000 for the four-year
contract period.
Recommended Council Action: Direct staff to retain a contract Water Projects
Manager and necessary support clerical staff for a period of four years.
WATER PROJECTS SUMMARY
The water resources alternatives now under consideration by the City are summarized in
Attachment 3, Water Supply Summary. The purpose of this one page summary is to
provide a comparison of the different alternatives as concisely as possible. The safe
annual yield for each project is identified as is the capital cost required to build the
project; operation and maintenance costs are shown where available. The cost per acre
foot includes both capital and operation and maintenance costs except where indicated
otherwise. Captal costs are amortized over 20 years at 109o' interest. In an effort to put
into perspective the impact each project would have on the individual consumer, a
percentage rate increase in the current water rates was determined. This was then
translated into a typical water bill for a single family residence using the non-
conservation City average of 24 units. A time line for development of the project
including design, permit processing and construction is shown. Environmental and other
concerns are briefly indicated
The four water supply alternatives being
recommended include Salinas Reservoir Table V Yield of Recommended Alternatives
Expansion, Hansen and Gularte Creek,
Desalination, and the State Water Project Yield (afy)
Project. The potential yield of these
projects is shown in Table V. The Salinas Reservoir Expansion 1650
timeline necessaryto develop the Hansen and Gularte Creek 560
p Desalination 3000
different projects varies from 12 months State water Project 3000
to 5 years. Figure 13 shows the best Total 8210
estimate of when each project may be
- - 15
Water Supply Status and Development
Page 16
operational and the amount of yield that ould be provided. These four projects, if all
were fully developed, could deliver over 8,200 of of increased safe annual yield. This
exceeds the required yield necessary to meet the City's urban reserve limit development
plus the adjustment for siltation and planning reserve. Staff recommends all these
projects be pursued at this time because there are no guarantees that all these projects
can be developed nor that the maximum yields will be as estimated.
Each project has the
potential to run into ,
problems that could ,
seriously impact the
completion of the project.
Salinas Dam expansion will m :.
require the approval of the m +
Corps of Engineers; the _
project schedule could be
prolonged if the ownership
issue of the reservoir itself
1 1,
becomes a major concern: , i-
The City Council has " '
,�owoo,�,aa„aze,elat,Za¢wsa, en.+zn.a9s+�saWs
determined that the State Timeline for Pooled DeeloAm
Water Project will require a CurrentSAY' .HanseNGuiarte Desaltr�aHon j
vote the people before it ®sarna Res. M stave water Pmjeot
can bea approved.
Desalination will require
the cooperation of Pacific Figure 13 TIMEUNE FOR WATER PROJECTS
and Gas and Electric and
the City of Morro Bay; major permitting is also required for this project. Hansen and
Gularte Creek development will require permits and an environmental impact review,
either of which could be an obstacle.
FISCAL IMPACT
New water supply projects will require additional revenue for the Water Fund. The
enact amount will have to be determined when the projects are completed and precise
amounts for debt financing and operation and maintenance are known.
In order to assess the cost impact each project would have on the City's Water Fund and
its service customers, staff used the existing water rate model to determine the change in
the current water service rates. The analysis was made assuming existing water rates
and consumption levels would approach the pre drought conditions. Rates were then
developed to determine how each project would individually impact water rates. Since
multiple projects will be required, rate increases will be additive. These rates were then
used to determine what a typical single family residential bill. The analysis did not take
into account an increase in connection fees which will occur and help offset the required
Water Supply Status and Development
Page 17
revenue from water rates.
The current budget has sufficient funds to begin the projects being recommended at this
time. The budget has $1S million from the groundwater phase three program still
unexpended and approximately $0.5 million in budget carryovers. Requests for
additional funds will be made in the future as needed.
RECOMMENDATIONS SUMMARY
The staff recommendations presented in this report are summarized into two categories;
Water Policies and Staffing and Water Supply Projects.
Water Policies and Staffing
1. Water Policies - Direct staff to develop an amendment to the Water and
Wastewater Management Element to incorporate a key water strategy policy for a
balanced water resources program.
2. Wastewater Reclamation - Authorize the position of Wastewater Reclamation
Coordinator to develop and implement a detailed wastewater reclamation project
and direct staff to proceed with the recruitment.
3. Water Projects Staffing - Authorize the position of Water Projects Manager and
direct staff to retain the Water Projects Manager and secretarial support for the
implementation of the adopted water supply projects.
Water Supply Projects
4. Salinas Expansion Project - Authorize retention of the Salinas Reservoir
Expansion consultant, Woodward Clyde, to begin design, permit processing, and
EIR development for maximum yield of the project.
5. Desalination - Authorize retention of the Desalination consultant, James M.
Montgomery Engineers, to design, processing permits, developing EIR and
interagency agreements for the project.
6. Hansen and Gularte Creeks/Reservoir Canyon - Authorize retention of the
Hansen and Gularte Creek consultant, Boyle Engineering, to design site facilities,
purchase of treatment facilities, process permits and development of EIR for the
project. ,
The necessary amendments, resolutions and contracts to specifically accomplish the
above recommendations will be presented to the Council in the future.
Attachments: 1. Water Action Levels
2. Water Conservation Accomplishments
3. Water Projects Summary
4. Executive Summaries: Salinas Reservoir; Hansen and Gulare Creek;
Groundwater Bain; Desalination
I � �
Water Supply Status and Development Attachment 1
Page 18
O
ACTION LEVELS
City of San Luis Obispo
November 1990
Action Level Definition Storage.(AFl
$ Biting
Action Levels Action Levels
MAX STORAGE Total City's storage in
both Salinas and Whale Rock 4SA30
Reservoirs
MINOR 3.0 years of supply less annual
well capacity plus minimum pool 21,300 24,500
(S%consavadmo)
MODERATE 2.5 years of supply less anaual
well capacity plus minimum pool 17,200 209000
(IS%cpnse�vaa 0)
SERIOUS 2.0 years of.supply less annual
well capacity plus minimum pool 12AN 159200
(25%conservadon)
C; SEVERE L5 years of supply less annual
well capacity plus minimum pool 99200 11400
(35176 co uerva don)
CRITICAL LO years of supply less annual
well capacity plus minimum pool 6,300 70900
(50%co=6vadon)
The storage levels are based on a base-year consumption of 8,050 AFY and Then reduced consumption based
on the appropriate conservation goal for each action level;2,000 AFY of well production and minimum pool
of 3,100 AE
Entering Action Levels are the levels at which the next.more stringent conservation goal is to be
implemented as reservoir storage decreases.
Exiting Action Levels are the levels which the conservation goals are relaxed as reservoir storage increases.
*Voluntary conservation,all others are mandatory.
C
1
Water Supply Status and Development Attachment 2
Page 19
WATER CONSERVATION
The City Council and staff have worked hard to establish sound water management
practices and these accomplishments have established a solid foundation for an ongoing
Water Conservation Program:
Mandatory Water Conservation Proarem In 1988, the City realized the possibility of a.
water supply shortfall. Staff formulated a plan with goals for addressing the water
shortage situation. In June 1990, the second phase of the mandatory water
conservation plan was started. It has been a tremendous success, seen by water
consumption levels down approximately 40% from 1987 levels.
Prohibitive Water use Codes In April 1989, Water Waste Municipal Codes were
adopted prohibiting: water run-off from property; use of substandard water fixtures;
use of water from fire hydrants for the purpose other than fire fighting or other
emergency; serving of water to restaurant patrons unless requested; use of potable
water to wash sidewalks, driveway or parking areas or in new or major construction. -
Water conservation staff has issued over 400 warnings to water wasters however,
none of these warnings have resulted in citations or fines.
Low Flow Water Fixture Reauirements for New Construction Since April 1988, installation \.
of low-flow plumbing fixtures and the installation of Ultra-Low Volume (ULV)
toilets have been required. The City's long range goal is to replace all higher
gallonage toilets with ULV toilets.
Public Information A comprehensive water conservation informational campaign has
been implemented using Barnett, Cox, a professional public relations firm. The City
sponsors a Water Awareness Fair every year and also sponsors water conservation
advertisements on radio, television, and in newspapers. The water conservation staff
participates in related community events to distribute informational/ educational
materials to the public.
Water Offset Proamm In order to receive a building permit and a water allocation in
the city, developers must retrofit existing buildings to offset twice the water the
project will use. Water offset values have been assigned to the different bathroom
fixtures to determine water savings.
Toilet Rebate Program As part of the long range goal to replace high gallonage, a cash
incentive program rebates $80.00 for replacement of existing toilets with ULV toilets.
e
Home Water Use Survey Program This program aids water customers cuf water
consumption in their home or business. A field representative checks for leaks,
shows the customer how to read the meter, analyzes over-all water use, then makes
recommendations on how to use water more efficiently.
_l 9
Water Supply Status and Development Attachment 2
Page 20
O
WaterConservation School Curriculum The curriculum targets elementary school students
in water use.
CARE. Proaram(Minimal Water Consenratlon Kits) In 1988, minimal water conservation
kits (dye tablet, a shower flow restrictor, 'toilet dams, and faucet aerators) were
provided free of charge. Again in 1989, the City in conjunction with P.G.&E.,
distributed kits to low income and elderly customers as part of an energy
conservation program sponsored by RG.&E.
Toilet Dams Since 1988, the dams have been offered free of charge to the public.
Excess Water Use Surchame Svstem A component of the Mandatory Water
Conservation Program calls for monetary penalties levied against water accounts
exceeding the water allocation.
Water Meter Chanae-Out Proarom Since 1989, a program to remove and replace water
meters 20 years old or older has been in effect Since older water meters can lose
up to 50% of their accuracy, water consumption per account can be more closely
monitored to determine if excessive water use is occurring. _
water Con§ermtlon Cooniinator Water conservation has long been considered an
important water management tool. Recognizing this, the City C established the Water Conservation Coordinator position to develop and coordinate policy which requires
the efficient use of water throughout the City.
Annual Water Operational Plan The City Council adopted the Annual Water Operational
Plan Policy Statement in 1985 to monitor the City's water supply situation and
implement certain programs at specific action levels as City reserves diminish.
The Plan reviews the current reservoir storage situation, projects future storage based
on a worse case scenario, and then evaluates supply and demand management
options. The end result is a reservoir storage curve showing the estimated reservoir
levels during the City's worst case historical dry cycle of six years.
POTENTIAL WATER CONSERVATION PROGRAMS
The following is a discussion of potential programs the City Council will be asked to
consider in the future. They represent the type of programs required to meet,the State
Department of Water Resources mandated Urban Water Management Plan.
Landscape Ordinance for All New Commercial Industrial and Multi-Faml/y Developments
Landscape irrigation represents a major portion of the water consumed within the
City. By January 31, 1993, the State will require all local agencies to have a water
efficient landscape ordinance in effect Current City landscape standards address
only a portion of the State's concerns about water efficient landscaping. Developing
O such an ordinance will require the cooperation of the Community Development
Department, landscape architects, and other green industry representatives.
Iotu
j
Water Supply Status and Development Attachment 2
Page 21
Staff proposes large developments, such as shopping centers and condominium
projects, be required to meet the ordinance standards. Residential development
would be excluded from the water efficient plant material requirements but would be
required to adhere to the irrigation standards. The goal is to implement this
ordinance by June, 1991
Retro-Fd Upon Sale Change to Use or Increase In Sauare Footage with Ultra-Low Flow Flush Toilets
(ULVI Council directed staff to research, evaluate, and,prepare an ordinance to
require real property be retrofit with low water-using plumbing fiktures at the time of
change in ownership, transfer of title, or change in use. This would include remodels
where square footage is increased by 25% or more. Proof of compliance would be
required within 30 days after the close of escrow. The goal is to implement this
ordinance by January, 1991.
Monetary Incentive for Turf Reduction (Cash for Grass) It is estimated that landscape
irrigation comprises 50% of all residential water use with turf area requires the most.
The feasibility and cost effectiveness of implementing a turf reduction program is
now under study including review of other agencies which have implemented such
programs. The goal is to complete the research by-the end of December 1990.
Ultra-Low Flow Showerhead Replacement Program Shower head replacement was an early
water conservation program with a moderate impact With an estimated 21% of
inside home use in the shower, every non-conserving showerhead uses between 6 to
10 gallons pet minute; showerheads termed 'low-flow" use between 2.5 to 3 gallons
per minute, potentially saving 4 to 7 gallons per minute. Because of the improved
design, the public's interest, and the water savings potential, this program is once
again an option. Several alternatives are being considered for distribution and to
ensure installation. The goal is to implement this program in.February 1991.
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TTACHMENT 3 - WATER SUPP SUMMARY
(Not available agenda close-to be distri ted under separate cover)
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SALINAS RESERVOIR EXPANSION
EXECUTIVE SUMMARY �;
` K Edward-Clyde Consultants
OEXECUTIVE SUMMARY
SALINAS RESERVOIR EXPANSION PROJECT
Phase I Studies
The concept of expanding the Salinas Reservoir by installing gates in the
existing spillway at Salinas Dam was initially proposed in the San Luis
Obispo County Master Water Plan update in October, 1985 and was included in
the City of San Luis Obispo Water Management Plan Update in October 1986.
At that time, it was estimated that expansion of the reservoir could
generate up to an additional 1,300 acre-feet of safe annual yield for the
City. The present study, performed by .Woodward-Clyde Consultants and
Leedshill-Herkenhoff, was commissioned by the City in July, 1988 to further
evaluate the technical , environmental and economic feasibility of expanding
the reservoir to store more. water. Because the project might involve
transfer of ownership of the dam from the U.S. Army Corps of Engineers to a
local agency, and a change in regulatory jurisdiction from federal to
state, the study considered both federal and statedam safety and
permitting requirements. The study was divided into three parts:
1) An evaluation of the geotechnical , faulting and -dam safety issues
affecting the project. This portion of the study focused on identifying
"fatal flaws" in the dam structure or surrounding terrain that might
prevent the project from being constructed;.
O 2) An evaluation of the flood hydrology, reservoir yield and cost to
construct the dam modifications necessary for the expansion. This portion
of the study was performed. to evaluate the economics of expanding the
reservoir, to confirm that the expansion would produce enough additional
water to make the effort worthwhile, and to determine what the range of
costs might be to construct the facilities necessary for the expansion; and
3) A review of the federal , state and local permits required for an
expansion of the reservoir, identification of the significant environmental
issues affecting the project, and a description of the permitting process
the City must comply with. to proceed with the project.
Collectively, the studies indicate that the project is technically,
hydrologically and environmentally feasible, although there are issues that
must be resolved for the project to go forward. The principal conclusions
of each of the studies may be summarized as follows:
Geotechnical , Seismicity and Dam Safety Evaluation - A small fault occurs
beneath the right abutment right side of the dam, looking downstream), but
is not expected to undergo movement that might affect the dam. The rock
beneath the spillway on the right side of the dam will require some
reinforcement in order to ensure that it remains stable under the -loads
imposed by a deeper reservoir. The abutment surfaces immediately
downstream of the dam will require some concrete armor to withstand the
eroding force of water pouring over the dam in a major winter storm. Some
grouting (pumping concrete or other sealants into holes drilled into the
�) ground) may be required to ensure that the raised reservoir does not cause
Woodward-Clyde Consultants
Y
excessive leakage through small cracks in the bedrock. No landslides or
other conditions were observed within the perimeter of the enlarged
reservoir that would preclude construction of the project.
Analysis of the regional seismic environment indicated that the Rinconada
fault (a large regional fault) passes within about 5000 feet of, the dam.
Although this fault is not known to be active, it was assumed to be active
for the purpose of conducting structural analyses of the dam. The
Rinconada fault was assumed to be capable of generating a Magnitude 7.4
earthquake (larger than the Magnitude 7.1 1989 Loma Prieta earthquake on
the San'Andreas fault) that would cause strong ground shaking at the dam.
The performance of the dam under this strong shaking with a full reservoir
load was analyzed using a three-dimensional finite-element computer model
that calculates the stresses that would develop within the dam. The
analysis indicates that the dam is strong enough to withstand the increased
load from a deeper reservoir. A major earthquake occurring nearby on the
Rinconada fault would cause some damage to the. dam, but would not cause it
to fail :and release the reservoir suddenly.
Hydrology, Reservoir Yield and Evaluation of Alternatives - A new probable
maximum precipitation event "PMP,"....6. theoretical maximum storm) and
resulting probable maximum flood (PMF) were calculated for the Salinas
reservoir using more modern techniques than had been used in previous
studies. Generally, it is expected that any dam must be able to withstand
the forces of a PMF without danger of failure. Routing of the PMF through
the reservoir using a computer model shows that the. PMF would overtop the
dam by about 2 feet. The structural analysis described above indicated the
dam could withstand the PMF loading, but there is a need for additional
armoring of the abutments to withstand the force of the water without
excessive erosion.
A computer model was used to evaluate the coordinated operation of an
enlarged Salinas Reservoir in conjunction with Whale Rock Reservoir to
determine how much additional water would be provided by raising Salinas
Dam. This analysis indicates that raising Salinas Dam by 10 feet would
increase the safe annual yield (a conservative measure of the additional
water that could be stored and used in a severe drought period) of the
Whale Rock and Salinas reservoir system by about 760 acre-feet. Raising
the dam by 20 feet would produce an additional 1656 acre-feet of safe .
annual yield. The model also indicates that expansion of the reservoir
would also significantly reduce periods of water shortage presently faced
by the City, and that there is enough water available in the watershed to
justify raising the dam by the 20 foot maximum.
Various alternative methods of raising the dam either 10 or 20 feet were
evaluated to find out which method might be the most cost-effective way of
expanding the reservoir. This analysis considered how each type of
modification to the dam was affected by the PMF, as well as the 'cost of
relocating facilities on the edge of the existing reservoir. Fixed-barrier
alternatives for raising the reservoir level , including installing a
concrete wall or stoplogs across the spillway, result in lower construction
costs, but have disadvantages in that they can increase the. duration and
� - a.S
W dward-Clyde Consultants
O severity of overtopping flow during the PMF. This characteristic means
that it would be more difficult to gain approval for these low-cost
alternatives from the dam safetyregulatory agencies. Other alternatives
using moveable gates across the spillway cost more, but may gain regulatory
approval more easily because they do not exacerbate the problem of dam
overtopping during the PMP. The various alternatives considered range in
cost from about $2.7 million to $7.25 million, resulting in costs for
additional safe annual yield of between $208 and $506 per acre-foot. These
costs are in the same range as the cost of other potential new sources of
water available to the City.
Reconnaissance of Regulatory Permit Requirements and Environmental Issues -
No environmental or regulatory issues which would prevent the expansion of
Salinas Reservoir were identified by the initial reconnaissance performed
for this study. The expansion of Salinas Reservoir would require
compliance with both the National Environmental Policy Act (NEPA) and the
California Environmental Quality Act (CEQA), as well as permits from other
federal and state agencies. Compliance with NEPA and CEQA would most
likely be achieved through preparation of a joint Environmental Impact
Statement/Report (EIS/R) , with the Corps of Engineers taking the lead on
NEPA compliance with a local agency as lead agency for CEQA compliance.
Other permits required include a Corps of Engineers 404 permit for
modifications to a navigable waterways. a Section 7 consultation with the
U.S. Fish and Wildlife Service to ensure compliance with the Endangered
Species Act and Fish and Wildlife Coordination Act, compliance with Section
106 of the National Historic Preservation Act, and a streambed alteration
agreement with the California Division of Fish and Game.
Important environmental issues that must be considered during the project
.include effects of the expansion on:
1) Water resources, including erosion and sedimentation, downstream water
users and possible affects on water quality;
2) Biological resources within the reservoir and downstream, including
terrestrial plants, animals and aquatic life. The reservoir area may .
contain several species of birds, reptiles and amphibians that are
threatened and endangered, or are considered candidates for threatened
and endangered status;
3) Cultural resources, including a number of historic .sites in the
reservoir area catalogued in a cultural survey performed by the Corps
of Engineers;
4) Land use and recreational issues. including loss of or the need to
relocate County park facilities that would be inundated by the larger
reservoir; and
5) The potential for growth inducement by increasing the available water
supply.
8810078A/COT
1 -a b
HANSEN AND GULARTE
EXECUTIVE SUMMARY
O ` EXECUTIVE SUMMARY AND BACKGROUND
Executive Summary
The City of San Luis Obispo (City) has the right to the surface water from both Hansen
` and Gularte Creek watersheds, which are located approximately 2 to 3 miles northeast
of San.Luis Obispo. The watersheds and general location of the two creeks are shown
on Figure 1-1. These spring-fed creeks flow year-round, the combined water flow from
which varies from approximately 200 to 600 gallons per minute (gpm). The City
obtained the rights to the surface water runoff from these two creeks in an agreement
dated 1912 between the City and the landowners at that time. Until 1976, the City
delivered Hansen-and Gularte creek diversions for municipal consumption. There is
apparently no established,quantity limit to the amount of water which the City may
divert, however, the agreement does indicate that certain properties are entitled to a
small portion of the collected water for their private use.
The fact that the City has existing water rights, a history of prior use, and diversion
structures in place makes this an attractive alternative for supplemental water. Use of
the creek diversions were discontinued in 1976 when the State Department of Health
Services (DOHS) mandated that 'complete treatment would be needed prior to
Gdomestic consumption. The following predesign report identifies the facilities needed to
provide the necessary level of treatment and the costs associated therewith.
An estimated project yield of 435 acre-feet per year (AFY) is anticipated with this project
This could increase to as much as 560 AFY if a nearby City well is included in the
treatment stream. The estimated cost to design and construct a package treatment
plant for the Hansen and Gularte creek diversions is $510,000 to $525,000, excluding
facilities needed to transport raw well water to the package plant.
Implementation of the Hansen and Gularte treatment project is recommended as a
means of supplementing the City's water supplies during the current drought.
Moreover, the addition of this source will serve as a long-term source of water to the
City.
With regard to the impact of utilizing these creek diversions, the Hansen and Gularte
creeks are tributary to San Luis Obispo Creek and do contribute to the overall flow.
Diversion of the anticipated 435 AFY at this point will result in a decrease in surface
water flow, but Is not expected to proportionally impact recharge to the ground water
basin. This is in keeping with the findings of the San Luis Obispo Ground Water Basin
Evaluation which state that a low to moderate amount (on the. order of 10 percent) of
surface water flow in San Luis Obispo Creek contributes to the recharge of the ground
water basin.
I
GROUNDWATER BASIN
EXECUTIVE SUMMARY
I
• I 1
EXECUTIVE SUMMARY
C'
General
On June 6, 1990, Boyle Engineering Corporation entered into a contract with the City of San
Luis Obispo to prepare the San Luis Obispo Ground Water Basin Evaluation. The objectives of
this evaluation are to define the basin boundary and its associated hydrogeology, assess the
movement of ground water within the basin, and assess the City's current ground water
development program. This evaluation Is also intended to identify further opportunities for
ground water development and to estimate the sustained yield of the basin. Environmental
impacts associated with short-term overdraft of the basin have also been addressed.
The study area consists of.approximately 28 square miles of land which underlies the City and
extends into Edna Valley as illustrated in Plate 1. Basin 3-9, illustrated in Plate 4, is that basin
from which the City is currently extracting water. Edna Valley makes up a 'contiguous ground
water terrane'which contributes ground water flow to the City area Thus, both Basin 3-9 and
the Edna Valley area were studied in this investigation.
The bedrock surface underlying the, basin was found to be highly Irregular, but there are
overlying well-defined areas of water-bearing deposits. A large portion of the basin which
underlies the downtown area consists of a relatively thin layer of unconsolidated materials and
is therefore characterized by wells of low to moderate yield (100 gallons per minute (gpm) or
less).
Higher yielding ground water zones exist in the southern portion of the incorporated area (up to
1,000 gpm wells), however, this area is heavily irrigated for agricultural purposes and
competition for ground water is high.
Current Basin Status
Examination of existing data leads to the conclusion that, during the period from 1978 to 1990,
Basin 3-9 has not been in a state of sustained overdraft. Long-term water level records in
particular indicate that, while the basin water levels do decline significantly during drought
periods, the basin recovers relatively quickly. The current City extractions of approximately
2,000 acre-feet per year (AFI) are resulting in significant water level declines which may be
considered a'short term overdraft'but does not indicate the long term status of the basin.
The City's current ground water program entails the use of six municipal wells and two or more
irrigation wells. Approximately 40% of current domestic demands are being met from ground
water supplies with annual extractions amounting to approximately 2,000 AFY. The opportunity
for additional well development within the City limits during the current drought is limited. Four
of the existing wells are showing sharp declines in pumping water elevation and are being
operated on a rotation basis.
There are opportunities to activate additional wells as a long-term supplemental water supply to
the City. Several moderate yielding wells in the downtown area (80 to 100 gpm) could be i
activated and used during non-drought periods. Use of this supplemental source would permit
Whale Rock and Salinas Reservoirs to more fully recover during years of.,normal to above-
normal rainfall.
Further,two areas have been identified that may support high ground water extractions (n the
order of 500+ gpm), however, both these areas tie outside the corporate boundary. The City
must weigh carefully the jurisdictional and environmental Impacts, and the transmission facility
needs in evaluating sources outside the City limits.
Basin Storage Capacity and Sustained Yield
The estimated storage capacity of Basin 3-9 is.23,900 acre-feet, which represents that volume
above rocks of the nonwater-bearing series and within the average saturated interval. This is
essentially in agreement with the California Department of Water Resource's 1958 published
estimate of 22,000 acre-feet
The maximum quantity of water that is available from a ground water basin on an annual basis -
Is defined as the basin's sustained yield. .This yield is limited by detrimental effects that would
be caused by over pumping and by operating the basin in a manner such that extractions
exceed replenishments.
In the analysis of the sustained yield of Basin 3-9, the sustained yield of the basin was
determined based on the inflows and outflows relating to the.basin (Refer to Plate 9).- The,
average annual recharge to the basin from the surface sources (e., rainfall, agricultural return
flow, etc.) is estimated to be 3,650 AFY. Agricultural and municipal and Industrial extractions
total approximately 5,800 AFY. The average annual subsurface outflow from the basin is
estimated about 100 AFY through the underfloor in the San Luis Obispo Creek channel deposits
at Santa Fe Narrows. Water level contours indicate that the gradient of water movement Is in- .
the direction of Basin 3-9 from Edna Valley. While sufficient data does not exist to state
specifically what this rate of inflow is, long-term records of water levels throughout the basin
indicate that the basin has not been overdrafted. Therefore, the estimated inflow from Edna
Valley coupled with seepage from stream surface flow and from treated effluent recharge is
equal to annual extractions. Hence, the sustained yield of the basin presently is estimated at.
5,900 AFY.
The City is currently extracting ground water at a rate of approximately 2,000 AFY. In doing so,
a short-term overdraft of the basin Is occurring. However, the City's pumping is serving to
make greater use of the treated wastewater and has probably increased the amount of
-recharge associated with that source. Moreover, future use of the City wells as described in
Section 5 is expected to increase the recharge to the basin (thus, increase ground water
available for City consumption) by several thousand acre feet. We conclude that the City can
extract several thousand acre feet (approximately 2,000 to 3,000 AFY) of ground water annually
if steps are taken to increase available recharge from the wastewater treatment plant and if the
basin is properly managed to better utilize recharge from stream flow.
Revised 11-1640. CMF ��
To better define this range, we recommend that existing or new monitoring wells be
constructed and monitored as a significant aid in defining basin boundary flows. Also, stream
gauges upstream and downstream of the City's wastewater treatment plant outfall should be
installed and monitored to better define the benefits derived from that source of basin recharge.
Recommended Location of Additional Wells
Considering the'extensive exploration (over 52 sites) and.well construction program undertaken
In the past two years and in light of remaining potential well sites on parcels owned by the City;
we conclude -that additional well construction within the City limits on City parcels is riot
recommended. We do recommend that the existing Mitchell Park well be re-designed for
municipal use. This must be coordinated with the Parks &Recreation Department and with the
Architectural Review Committee.
Other than areas within the corporate boundary, the hydrology of two-areas near the City
suggest a potential for relatively high yielding wells. One area lies to the south of the Airport
and Is near the boundary between Basin 3-9 and Edna Valley. The second area Is along Lower
Higuera Street near the southernmost Highway 101 interchange which is within Basin 3-9.
Both locations are likely to consist of a relatively thick layer of unoonsoridated materials and
may yield quantities in the order of 500 gpm. Exploration of these sites should include*some
Initial exploratory methods (geophysics, etc.)followed by test well drilling, if appropriate. Other
overriding issues will affect the development of a well field outside the City limits, such as
negotiating with private land owners and the cost of transporting such water to the City.
Although beyond the scope of this investigation, potential water rights issues must be
' addressed In the evaluation of any new source of supply.
We recommend that the City consider well field development in these two areas and proceed
with a hydrogeologic exploratory program. If found to be promising,then the City should more
carefully examine these water supply options as long-term supplies to the City.
Conjunctive Use
For current operations, we recommend that the City continue to maximize the yield from the
existing wells and use surface-water as needed to meet monthly demand. Both Basin 3-9 and
Edna Valley have a history of relatively rapid recovery following years of below average rainfall
and is expected to recover in the coming rainy seasons.
While Whale Rock and Salinas Reservoirs are recovering, continue to maximize use of the
ground water basin. In doing so, higher priority will be given toward reservoir recovery as
opposed to basin recharge. This is recommended since the basin yield is limited and unused
ground water may flow out of the basin principally as surface water and be lost if not put to
beneficial use.
Revised 11-16-90_ CMF t � "
During years of'normal operation' when both the reservoirs and the basin are full to near-full, -
i we recommend that the City use ground water supply in the winter months when stream flow is
evident in order to make use of the water that otherwise would run off into the ocean. Moderate
use of wells in the summer'would make better use of the two sources conjunctively. More
detailed operational studies would be needed to more specifically outline an operational plan
for the City. Also, the recently completed conjunctive use study would need to be amended to
Include ground water supply as a third variable in the operations of the City's two reservoirs.
There are many aspects to consider in comparing alternative water supply options which are
outside the scope of this evaluation. However, the City should recognize that the yield from
both surface*reservoirs and ground water supply are 'rainfall dependent' and somewhat
susceptible to drought impacts. For this reason; supplies not wholly dependent upon local
rainfall patterns are desirable. State Water Project supply and desalination present such
options.
Recommended Management.Strategy
Presently,some stream flow and ground water leave the basin,and do not contribute to ground
water recharge .in the basin. _,Ground water basins..such as..Basin 3-9 must be adequately ..
pumped In order to maximize recharge. That Is, when water levels are high (e., dose to the
ground surface),there Is little storage space for recharge. Substantial ground water pumpage
is possible during sufficient stream flow periods from alluvial deposits in areas near streams.
In addition, treated wastewater is a valuable source of water, one that could augment basin _
recharge or offset current agricultural extractions. Effluent could be treated and used directly
for crop irrigation, lakes, and golf courses as permitted under current Department of Health
Services regulations. On the other hand it could be recharged, either in percolation basins or in
normally dry stream channels, and subsequently pumped for reuse. The City's plans to move
the outfall location approximately 3,500 feet upstream of its current location will increase the
length over which stream infiltration may occur and is expected to benefit the basin.
Managing the ground water basin entails coordinating pumpage with surface water supplies so
as to minimize runoff of stream flow out of the basin.
Problems with well interference can be minimized by siting new wells at an adequate distance
from existing wells (approximately one-half mile or closer nearer to the creeks), and by
conducting aquifer tests, so that drawdowns at various pumping rates can be predicted for new
wells.
Recommendations for Actions by the City
The following' recommendations are made relative to basin management and future well
construction:
Revised 11-16-90. CMF
_ 3
t. Adopt a policy to maximize ground water extractions during times when surface flow is
evident in the creeks.
C
2. Formulate a plan to maximize the recharge available from the City's wastewater
treatment plant, or implement aplan-for beneficial use of the City's effluent As a
starting point, the amounts of seepage of sewage effluent from San Luis Obispo Creek
should be measured. This could be done by installing and monitoring stream gauges
upstream and downstream of the City's outfall.
3. When future wells are drilled, well efficiencies should be determined from constant-rate
pump tests and proper well construction procedures employed, Including the use of
reverse circulation rotary drilling (without using bentonite), use of appropriate -filter
material and slot size, and packer isolation of selected intervals, during well
development
4. Static water levels should be measured at least quarterly in all City wells (active and
unused).
5. The feasibility of ufilizing geophysical surveys (electrical,_gravity, or seismic) should be
investigated to determine the thickness and nature of the alluvial materials at potential
well sites.
C�
Revised 11-16-00. CMF ��
DESALINATION
EXECUTIVE SUMMARY
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EXECUTIVE SUMMARY
o
This report presents the'results of an investigation into the feasibility of utilizing desalination as a
source of water supply for the City(City) of San Luis Obispo. The City authorized James M
Montgomery,Consulting.Engineers,Inc.(JNIlVI)to evaluate the feasibility of a 3.000 acts-feet per
year(ac-fVyr)desalination facility to supplement the City's dwindling surface water sources. This
Executive Summary briefly summarizes the results of that report
EXISTING AND FUTURE CONDITIONS
The City's existing surface water supplies consist primarily of the Salinas and Whale Reck
Reservoirs. Due to the on-going drought being experienced in the area,the Salinas Reservoir has
reached minimum pool elevations and is no longer available as a source of supply. The Whale
Rock Reservoir is expected to reach 'minimum pool in approximately the next 18 to 22 months,at
which time the City will only have its groundwater reserves available. Currently,the City is
pumping approximately 2,400 no-ftlyr,although preliminary results of the City's groundwater -.
investigations indicate the safe yield of the aquifer at only 500 ac-ft/yr.
The water quality of the.existing supplies is very good,with the potable water provided to the
consumer well within all current regulations. The product water provided to the City from.&
desalination process would also be of high quality,although DOHS may require additional
treatment of the product water should direct consumption oocm.
Several water supplies that may be alternatives to desalination were identified in this study. These
include:Coastal Branch of the State Water Project;Enlargement of Salinas Dam; Coastal Streams
Project;Nlacimiento Reservoir,purchase of groundwater from agricultural users; and others.
Although several of these options may provide an alternative supply of lesser cost in comparison to
desalination,they cannot be implemented in time to meet the City's critical needs within the next 18
to 20 months.
A number of potential joint venture participants were contacted to determine their level of interest in
the project. The City was interested in taking advantage of potential savings that could result from
construction and operation of a larger facility should such savings be avatilable. Several of the
potential participants were interested in the project,although many did not want to commit at this .
Otime and elected to await the outcome of the debate over completion of the State Water Project The
ES-1 /
City of Morro Bay,however,is in an emergency situation currently due to its lack of water supply
and has indicated a strong desire to participate in the project -
DESALINATION TECHNOLOGY EVALUATION
Several desalination technologies exist for both brackish and seawater supplies. Due to the
potential savings associated with brackish supplies,the project team attempted to locate a brackish
water supply for the project,but it was determined that none are available. Therefore,a seawater
supply was selected,and four alternative desalination technologies were identif ed that may be
applicable to the City's project•. multi-stage flash evaporation(MSF),multiple effect distillation
WED),vapor compression evaporation(VC)and seawater reverse osmosis (SWRO). MSF has
significantly more installed capacity on a world-wide basis in comparison to the other technologies,
however,it was eliminated from further consideration as its role is primarily restricted to joint
operation with large power plants. MED was also eliminated from further comparison as a source
of low-cost steam is not available for the project and on-site generation was assumed to be
environmentally unacceptable, T_
The two remaining technologies,VC and SWRO,were evaluated. The results indicate that:
U
• SWRO has approximately 50 percent greater installed capacity in comparison to VC,with
capacities of 159 and 97 million gallons per day,respectively.
The capital costs,which were developed for purposes of comparison between
technologies,do not represent the actual cost of the City's facility as they do not include j
factors such as engineering, legal costs, administmdon,environmental assessments,and
allowances for contingencies. The capital cost comparison between alternatives shows the
median cost for SWRO to be$12.1 million,based on responses from 6 manufacturers,
while the VC cost of$18.2 million is based on a single manufacturer's response. In
addition,the operating costs for a SWRO facility are less than those of a comparable VC
facility. % .
• The annual cost of a desalination facility,based on amortized capital costs and operating
costs,are approximately$2,220 and$2,870 per ac-ft for SWRO and VC,respectively.
This assumes a five year amortization at eight percent interest
• SWRO requires less energy input per unit water produced in comparison to VC,
ES-2
-37
O
PROJECT DEVELOPMENT AND SELECTION
The four key components of the project have been identified as: joint venture participation; intake
facilities;outfall facilities;and conveyance facilities. Joint venture participation is very m4==t to
the City's project as the water supply must be obtained from an open ocean intake as brackish
supplies are not available. Assistance from a willing pardcipant will help the City to locate the
desalination facilities in another corrununity adjacent to the supply. In addition,the Clay can
achieve overall savings due to lower unit costs associated with larger treatment facilities.
In order to min*mize environmental impacts,the use of an existing open ocean intake and outfall is
critical to the project if it is to be on-line within the City's existing time constraints. The only
existing intakes are at Pacific Gas and Electric's(PG&E)power plants at Mmm Bay and Diablo
Canyon. The City,in conjunction with the City of Morro Bay,met with PG&E regarding usage of
the Mono Bay Power Plant cooling water intake and received indications that PG&E may be
welling to help;subject to review of the final project. Four outfalls lhave been identified as*potenitW
candidates dependant upon selection of a project site: the PG&E cooling water discharges at Morro
Bay and Diablo Canyon;and the wastewater treatment discharges at Marro Bay and the South San
Luis Obispo County Sanitation District.
•The final component is the conveyance or distribution facilities. There are no treated water
pipelines connecting the City with any coastal site;however,the raw water pipeline from the Whale
Rock Reservoir passes through Morro Bay on its way to the City's existing water treatment plant.
If a Morro Bay site were selected for the desalination facility,the product water could be pumped
into the pipeline and conveyed to the City.
SELECTION CRITERIA DEVELOPMENT
Several criteria are used to evaluate the various
project options,including capital costs,operating
costs, scheduling constraints,environmental and permitting concerns,and integration with the
City's distribution system. Costs were discussed previously. Scheduling constraints are included
to mandate that every decision made on the project be done with the underlying motive of
minimizing potential project delays. Preparation of the environmental documentation and obtaining
the necessary permits are vital to the viability of the City's proposed project. Careful selection of
Gthe project components may allow the City to prepare a mitigated Negative Declaration in order to
comply with the State's rtquim:n—.nt for environmental documentation. If the project impacts
ES-3 I �p
cannot be mitigated,however,as Environmental Impact Report will be required and the project
schedule would likely be adversely affected. A preferred project has not been identified and it is
therefore premature to determine which of these would be required.
MATRIX EVALUATION
A matrix evaluation comparing various project components with the selection criteria's presented
in Chapter 4. The results of that analysis indicate the following-
0
ollowing• Seawater Intake: The favored sites are the PG&E facilities. The other alternatives involve
the construction of new intakes,which will be significantly mote expensive,will not
comply with the City's schedule,and will have significantly greaterenvironmental impacts.
• plant SiteW%ale Rock Pipeline: The favored site is in Morro Bay,utllizing the Whale
Rock pipeline to convey the product water to the City. This is the least expensive
alternative and is also the easiest means by which the City's distribution system can be
accessed. Its overall environmental impacts are less than that of the other alternatives
__ _. : . considered._:=__ _._.._ -- -_ ,- - - -- ---- - -- - -•
• Desalination Technology: SWRO is favored as it will cost less and be less costly to operate
in comparison to VC. No advantage is given to either system for their impact on either
schedule or integration with the distribution system. The environmental impacts of SWRO
are more favorable as VC units present aesthetic concerns,while also consuming greater
amounts of electricity.
• Ocean Outfall: Any of the existing outfalls are favored for this project,although discharge
to a wastewater treatment plant outfall has a slight advantage over power plant cooling
water discharges. This is because mixing the concentrated brine wast product from the
desalination project with the wastewater will cause the wastewater now to bocome more
saline and thus its characteristics more closely approximate those of the zrae4ving waters.
1
ES-4 Q
FACILITY CAPITAL COST
Based upon the implementation of an SWRO facility at an unknown site located in Monro Bay,the
project team developed the following capital costs:
ESTIMATED CAPITAL COST FOR SWRO PLANT
Capital Costs
On-site Work
Desalination Equipm=t $919009000
Electrical(15%of egdpn=t) 19500,000
Site Work(assumes no buildings-only 20,000
access,piping,fencing,eta) .
Off-Sit+e wade
intake Movements -200,000
Pipelines 950,000 .. -
Propeity None Assumed
Cl SUBTOTAL $12,470,000
Non•Capital Costs
Engineering,Legal,CMS,Admin(30%) 31780,000
Environmental 04tigated Negative 750,000
Declaration)
Contingency(20%) 2.500.000
TOTAL $199500,000
PROJECT IMPLEMENTATION
The project team identified several objectives to be used as evaluation tools for selection of the
most appropriate method of project implementation. These objectives include:
• Develop a desalination supplywith a target implementation schedule of twelve months. An .
assumed supply of 18 months is available in Whale Rook Reservoir.
• Maimize project costs and the City's financial risks. Emphasis should be placed on the
financial risks associated with an April 1, 1991 date when the City will have a greater
ES-5
understanding of the 1990;1991 winter weather patterns. If the City observes groater than
normal amounts of rainfall,it may elect to proceed with the project at a slower pace. -
' Provide straightforward project implementation,minimizing required
City staff time,
_ T].rv.+l.rjr u la.y'wt w1.iC1r i.10r..aaR evd id aacavt&ule b mom,*13., n,"wi=aLon OEMADrM
Bay will benefit in the project as they can assist in land acquisition,cost sharing, and
negotiations with PG&E.
• Minimi=the need for the City to hire new,permanent operations staff.
Four options for procuring the desalination facility were selected for evaluation. Although it is not
possible to A33033 cost advantagoa oawaiaaad with O"h.000n,the follov AS advant&Vs Md
disadvantages can be determined:
Pun Serviao Contaotr 7%io tyT*of oonnoot,vAlch to Diaries*to that our"ntly being
pursued by the City of Santa Barbara,requires that the water service provider assume the
entire responsibility for the project. The service provider must finance,design,construct
and operate the desalination facility,while the City's responsibilities are minimized
emaghout the cndre projact and the City's only responsibDiity is to pay for the service.
however,this type of contract gives the City the least amount of control over the design
and construction of the facilities. Implementation can be expected to require approximately
18 months. ~
Thy Design-Construct plus Contract Operations. This contract provides the City with
• a greater amount of responsibility as the City must finance the project. The design and
construction of the facilities is the responsibility of a single manufacturer.while the plant
operations is contracted out to a contract operations company The advantages of this
option include greater control available to the City and no additions to the City operations
staff. The disadvantages include increased amount of City engineering staff time required
and a greater potential for interface problems between the contractor and the contract
operator. Implementation can be expected to require approximately 18 months.
Turnkey Design-Construct plus City operations. This contract is very similar to the
previous option.with the only difference in the City's assumption of operating
responsibih'ties. This would require the City to add additional operations staff that may be
required on an infrequent basis,but the City gains greater control of the plant operations•
Implementation can be expected to require approximately 18 months.
• Fast-Track Conventional Design and Construction and Contract Operations. The owner
again assumes a great deal of-responsibility for this option,including project financing, ;
selection of a design firm,prepurchase of desalination equipment,bid and.award of all site
ES-6 ,'
C work and pipeline construction to a general contractor,and operations by a contract
operations company. 'Ibis option provides the City with the greatest level of control and
best utilizes each participant's expertise. However,the City must administer fora separate
contracts and potential conflicts due to interfaces between the designer,constructor and
operator increases the City's risks. Implementation can be expected to require
approximately 16 months.
The project team met with City staff to discuss the alternatives and discuss the City's preferences.
After much discussion,the project team and City staff agreed that the preferred approach utflize a
hybrid of two alternatives. The project would be separated into two components. The first would
consist of the desalination equipment plus the on-site work The City would prepare a detailed
performance specification along with require==for minimum materials of construction and site-
specific information. Desalination manufacturers would bid for this phase of the project,assuming
responsibility for on-site improvemenm including hookup of inlet feed water,outlet product
water,outlet brine for disposal,and site utilities. The second component includes all of the off-site
work that would be required,including pipeline construction,intake improvements,tie-ins to
outfall lines,add all other project responsibilities not specifically on the site. There would be.
sufficient time to prepare a fast-track design for this phase of the project,followed by bid and
award to a general contractor. The approximate time for completion of this alternative is 1$
months.
IIVIMEDIATE NEEDS
Itis recommended that the City begin immediate implementation of the preferred alternative. The
schedules presented in Section 5 of this report are extremely aggressive and assume that work
begin on several fronts simultaneously. These include:
• Specification Preparation-The preparation of an equipment specification is on the critical
path and must be completed as rapidly as possible in order to avoid project delays.
• Project Definition-This report focused only on the feasibility of a desalination project and
did not attempt to identify specific aspects of the project such as a preferred site,pipeline
alignment,or other specific project components. It is recommended that this phase of the
work be petfm=d in close cooperationwith an environmental consultant in order to aid in
the selection of project components with the least environmental impacts. This is necessary
to speed the environmental documentation process and hopefully avoid the need for an
Environmental Impact Report:
C�
ES-7
• once the site and pipeline route have been selected,survey and geotechnical studies mutt �.
be conducted to gather information on the site in order that these data can be included in the
bid documents.
• Completion of the project definition should be immediately followed by the initial stages of
the environmental documentation,e.g. biological and archaeological surveys,plume
dispersion modeling,etc.
ES-8 2
'EETING _ GENDA �
DATE l� a 9 ITEM # �-
,
LAW OFFICES OF
SUSAN M. TRAGER
CA PROFC53IONAL CORPORATION
THE LANDMARK BUILDING
2100 S. E. MAIN STREET
SUITE 104
IRVINE. CALIFORNIA 92714
SUSAN M. TRAGER TELEPHONE
VICTOR R. SOFELKANIK (714) 752-8971
MICHELE A. STAPLES November 13, 1990 TELEFAX
HOWARD A. POLLAK (714) '863-9804
VIA TELECOPY OCOPESTO: ❑
(805) 549-=7115 �, FYI
MAdio �DUL
A.
��O ❑ FIN.DIR.
I&ACAO ❑ FIREOW
The Honorable Penny Rappa [[�� TroRNEY E3FwDut
Councilmember VCi.ERK/o[uC. ❑ Fouoecx.
CITY OF SAN LUIS OBISPO ❑ MGwr.TEnm ❑ REcDut
990 Palm Street G�tiD'
P.O. Box 8100
San Luis Obispo, CA 93403-8100
Re: Presentation to San Luis Obispo City Council By
Nacimiento Regional Water Management Advisory Committee
("NRWMAC") Regarding Water Resources Management Issues
on the Central Coast
Dear Councilmember Rappa:
The Nacimiento Regional Water Management Advisory Committee
hereby formally requests an opportunity to address the City
Council of the City of San Luis Obispo regarding water resources
management issues on the Central Coast. As an ex-officio
Director of NRWMAC, you are aware that tho- Committee has as its
special charge maintaining an overview of current water resources
development on the Central Coast. A number of such issues are
looming large on the horizon and we would like the opportunity to
present a report on the status of these issues to the City
Council.
These issues include the following:
1. Issuance of the Boyle Engineering Corporation Report.
-The Boyle Report was commissioned by Monterey- County as the basis
for a Water Capital Facilities Plan. The Boyle Report discusses
34 potential water facilities and water management projects. The
implications of the Report are significant for the Central Coast.
Activities by Monterey County to develop additional water
resources in the Salinas River and its watershed affect all users
Cof the Salinas River throughout its reaches in both San Luis
RECEIVED
c:\elq\rappal NOV 16 1990
CITY COUNCIL
SAN LUIS OSISM CA
I
I
' LAW OFFICES OF -�.
SUSAN M.. TRAGER
A PROFESSIONAL CORPORATION
O The Honorable Penny Rappa
November 13, 1990
Page 2
Obispo and Monterey Counties. The Committee has submitted formal
written comments on the Boyle Report and would like the
opportunity to inform the City Council about the contents and
implications of the Report.
2 . Pending issuance of the Environmental Impact Report
("EIR") on the Castroville/Marina Seawater Intrusion Project In
late November, Monterey County will release the EIR on the
seawater intrusion project which will outline the steps which
Monterey County proposes to take to stop intrusion of seawater
into the northern reaches of the Salinas Basin. The EIR and the
underlying project have very important implications for regional
water resources management.
3. The 1991 Salinas River Workshop.
San Luis Obispo County Supervisor Harry Ovitt is organizing the
Salinas River Workshop to bring together all water agencies and
interest groups benefitted and affected by the Salinas River
throughout its extent in both counties. This Workshop is
scheduled for January 25, 1991. It is Supervisor Ovitt's hope
that the Workshop will be jointly sponsored by San Luis Obispo
and Monterey Counties. This is a significant event in the
history of the River and the City of San Luis Obispo would
benefit from participating.
4. Related Matters.
As a part of its charge to monitor and participate in regional
water resources management and planning, the Committee has kept
abreast of the development of the state water project extension
to the Central Coast, Senate Bill 2580 (which restructures and
increases the power of the Monterey County Flood Control and
Water Conservation District) the clean-up legislation associated
with Senate Bill 2580, and the activities of the Pajaro Valley
Water District as they affect the Salinas River. The Committee
can address all of these issues in the interest of more fully
informing the City of San Luis Obispo about regional water
management issues.
Please feel free to contact us if we can give you additional
information regarding any of these items. We look forward to the
opportunity to address the City Council, and to working with the
C
c:\elq\rappal
LAW OFFICES OF* ; I�--
SUSAN M. TRAGER
A PRO/CSSIONAL CORPORATION
The Honorable Penny Rappa
November 13, 1990
Page 3
City Council to expand and enhance understanding of and
participation in regional water resources management and planning
on the Central Coast.
Sincerely,
LAW OFFICES OF SUSAN M. TRAGER
A.Pxofess n orporation
I
Q evedo
ELQ:jas
cc: Board of Directors
Nacimiento Regional Water Management Advisory Committee
The Honorable Harry L. Ovitt
Mr. Lawrence Porter
Mr. William Hurst
The Honorable Andrea Seastrand
C'
c:\elq\rappal
,e � (� � , 111 di At f+�' I��/11�i 1 �( 1/'l
NUMU 110111lil'u No.tex-llroon. Wod„ood„
esaltig TO
n : •
i ;.r! .
cntrao
•''- - The city of.Santa.Barbara has
ct signed a contract with Ionics Inc.
to build and.operate a desalination
"•”"+;r;"' ; ' ' lanfto extract drinking water
from sea water.The following
approved tentative dates are important
,. milestones along the way:
September 1990-Contract
By.Donaid Murphy ~�}/ Signed.
gews-Press Stell Writer j it ■ December 1990- Draft
environmental report made
;Three, cheers arose in Santa public.,
Barbara'City:Hall just after noorit ■ April 1991 - Environmental
1`ifesday;r� en'
wh '.MayorSheila report certified as complete.
I;odge,and,'the president.of Ionics ■ June 19911=-Final permits
InL.sigried;a,contract for a desali- . 7 ;.,Issued and city chooses size
nation plant:� ,y o. lant and gives Ionics final,
The City,Council,earlier voted'6- decision on whether to .
r
I':to;approve,a contract with'the P� e�• . ,;'•
Massachusetts-firm'to build; own ■;February:;1992=Desalinated
aiid :operate. the -plant on:'East h,wat' r av_ailable.
Y,anonali Street,"
! The eyes of.the world are really ';: :News-Press Graphic
on; this. (project), Arthur' Gold '.:';;
stein;;:.Ioniisi.president ,•toid'•the
acre-foot:.fqr;',a'':2,500: .acre-foot
councilatterthevote plent, ;$1;953`at:5,000 acre-feet,
The 'cheers and,'•smilesat City ' 1,918,..for
•7,500 ;acre-feet;. `and
.Hall seemed,,geriuine-,but the cele '$1866'.at:10,000..,acre feet Costs'`
tiaation.was'subdued;.perhaps re ` could, :increase` in-,subsequent
gcting;liow..fa;troth ttie;ci "and years;.based•on;the:increase in the
Ionics have travelea'to'get.to'this locahconsumer,price,index
point,and how far they have yefto A 7,500 acre foot plarit,woul�be.'
the'::largest`reverse+.:osmosis:sea '
.The,'council choseIonics'in mid- waigi'--&salination -plant in. the .
-August'after'a`,5=month search, for, United,,S.tates `'Goldstein'.said. .In
LC-717 ``,. i a-water„project'that-could supply reverse -,,osmosis, sea water .is
up to' 5,000 acre-feet of water'to ; forced at very ;high ;pressure
c ,_cCnr. G F 'i the city,'ley,1992.-,Lake Cachuma, through: semi=permeable mem
��• = ❑ Coy)J.)13. 1 the 'el 's raditional'mainisouree; bran`s;that screen salt and other'':
t3 .
e'er u`.>,?:: of water,ivill'be dry.liy then if the:,.materials froai'the'water.:'
."•� C� msec drouglitcontinues.' 1 The contract.is for 5 years and
' Before`the city gives Ionics fire i 'can be renewed for another fide.
,.Err:. fnal-'go:ahead.'.to'buildthe`plant, ; ,Santa,Barbara•'caa'.bu the- last
_' nl - i tti'e ' ecfaiust ass'environmen Y p
p 1 p, from Iodics,•at at>y times Ionics is •.
Ir LL' y j ta7 review and receive a myriad of ' requtredto dismantle and remove
F/1.�_�✓—T�T _ _federal;`'state'arid' local permits.. . the facility,if the city so desires.
-� - •Santa'.:Barbara'has'until June'30; i Councilman Gerry DeWitt cast
1991;,;to..tell Ionics ••whether...the : the lone vote against the contract
city wants theplant;,and_howv'Uige He favors desalination by another
it shouldbe.if is built';.', :'.; , process called distillation.. .
onics:"r'thgi 'would.;have::eight: ' 'Peter,Schillke,:*-local resident .
mQritlis to build and test the plant.; ;,who advocates conservation as the
cided riofao:pio solution;to•the:City's'waterneeds
Geed`after':the environmental re-:_ admonished'_,the;,council. before.:
,.
i,-ports.-liad;been;:completed, and. the,vote. `.`I.think,you have your,
perrri>ts ';obtained; 'it could..owe priorities backward,'.'fie said.
Ion1 ;,..s:muCh as,$l million;'Sap- ;:Tbe>:.couneff.;has., been timid,:
NOV 2 7 1990 - dra:,Liiarraga,'deputy.,city.admin- aboufperrnanEildconservation,he.
i, istratOjsaid:'''.:�,i'_'.:'t:Iilc,:,, , .
said;•but:instead chose desalina
:,;,The amount the city would pay tion—which he'calleda.polluting,
for the;water,'ries-with`.the„size temporaryand expensive solution.
pf the)p.lant.i he:cost during the The,decision win,cost.water cus
first;;year,;would:.j.,e. ,301;;per. •; tomert$50-million;-he said.
��I�N��IbIIIII��IIAIIIIII Vy f (yIFFTiNf:GATE:
cio san �u�s os�spo 11/27/90
COUNCIL AGENDA REPORT rMM NUMBER:
OCR
FROM: Ken Hampian, Assistant City Administrative Officer
SUBJECT: Election Concerning State Water Project
CAO RECOMMENDATIONS:
1. Determine the timing for an election concerning City
participation in the State Water Project.
2. Determine whether the election should be binding or advisory.
DISCUSSION
Background
On July 31, 1990, the City Council approved in concept the holding
of an election regarding City participation in the State Water
Project. The Council directed staff to begin a dialogue with the
County relative to holding such an election on a county-wide,
consolidated basis. No decisions were made at that time concerning
the specific timing for such an election or whether the election
should be binding or advisory in nature.
Following the July 31 meeting, staff met several times with County
officials and City officials to explore the possibility of a
consolidated election. In addition, Mayor Dunin discussed this
possibility with several other mayors and with Board of Supervisor
Chairperson Evelyn Delany in a Mayors/Managers meeting held on
September 27, 1990.
In summary, holding a County lead consolidated election on State
Water does not appear feasible. The County's position is that
because not all County jurisdictions are subscribers to the State
Water Project, it would be undesirable for the County to hold the
election. With respect to the cities, there are very different
ideas as to how to decide on the State Water Project. For example,
Arroyo Grande is following a "two-step" election procedure. First,
in November they will ask voters to determine if the matter ought
to be decided by a binding vote; second, if the answer is yes, it
will be placed on a future ballot for final action. Other cities
indicated that they did not intend to place the matter on the
ballot at all; instead, the city council will decide.
Because the City of San Luis Obispo will now need to determine
independently the approach to holding a State Water election, staff
is returning at this time for further direction concerning the
timing and nature of such an election.
city or San lUI s OBISPO
COUNCIL AGENDA REPORT
Page Two
Council Agenda Report
"Window" for Holding Elections in San Luis Obispo and Santa Barbara
Counties
Since July 31, in addition to pursuing the concept of a
consolidated election, discussion with various county and city
officials has provided a better understanding of the possible
"scenario" for elections occurring within San Luis Obispo and Santa
Barbara counties. Based on these discussions, the most likely
process and deadline for holding elections is as follows:
First. November 1991 may be the last opportunity to place the
matter before the electorate.. This is because of a kind of "domino
effect" which is expected to be triggered by Santa Maria in January
1991 and will ultimately impose a deadline on both Santa Barbara
County and our county.
Santa Barbara County officials have explained that when one member
of the Santa Barbara County Water Agency takes action on the State
Water issue (e.g. Santa Maria) , then contractually all other member
agencies must act within six months. Assuming that the Santa Maria
City Council will act in January, the Santa Barbara County Water
Agency is planning to place a question on the June 1991 ballot
asking voters if they will approve the issuance of a revenue bond
to support the capital costs of the project. An affirmative vote
is tantamount to also approving the State Water Project.
Once Santa Barbara County has acted on the matter, then the State
will give San Luis Obispo County a limited period of time to make
a decision. If a decision is not made within that time period,
then the County will be excluded from the project and project
design will be initiated to serve Santa Barbara County only. State
officials have informally indicated that the State will give SLO
County a maximum of six months beyond Santa Barbara's June 1991
election. For this reason, the November 1991 ballot is likely to
be a "last election opportunity".
Status of Final EIRs
The timeframe for completing the final environmental impact reports
for the Coastal Branch (State project) and the local projects may
affect when the Council determines it appropriate to schedule the
State Water Project issue for an election.
According to the State Department of Water Resources, due to the
volume of comments received regarding the Draft EIR, the State does
not anticipate certification of the final document until the
"Spring of 1991". Thus far, the State is unable to be more
specific than this general timeframe. Therefore, according to
a - �
city of San 1111s OBISp0
Mrms COUNCIL AGENDA REPORT
Page Three
Council Agenda Report
their current estimate the final EIR may not be available until as
late as June 20, 1991 (the last day of Spring) . The County
Environmental Coordinator estimates certification of the Local
Projects EIR in August 1991.
Supplemental information concerning the County's State Water
subscribers and the EIRJelection process is provided in a
memorandum from the County Administrative Office (Attachment 1) .
Council Decisions
1. Timing: Special or General Election?
The Council needs to determine whether the State Water issue
should be brought to the voters in a special election or in
the next regular City election, which is November 1991. The
decision to schedule a special election may be impacted by the
following considerations:
• The availability of the Final EIR. At this point, if a
special election was to be scheduled in June 1991, it is
possible, though not certain, that the final Coastal
Branch EIR document will be available prior to Election
Day. It is important to note, however, that even if the
document becomes available prior to an election, there
may not be adequate lead time to integrate consideration
of the final EIR information in the election process
discussion. The Local Project EIR is not anticipated
until August 1991. On the other hand, the Final EIR
documents are expected to be available in time to fully
consider their findings prior to November 1991.
• °Coordination" with Santa Barbara County's consideration
of State Water. If the scenario outlined earlier occurs,
there may be an advantage to a June 1991 election in
terms of the community considering the State Water issue
at the same time it is being debated by cities in Santa
Barbara County. The advantage would be in terms of any
benefits which might be derived from the discussion and
public focus on the issue which will occur simultaneously
(and thus hopefully provide for a more informed
electorate) . This could help compensate for the fact
that the final State EIR document may not be available.
L
a - 3
�� illl��pn ► �il city of San Luis OBlspo
MMe COUNCIL AGENDA REPORT
Page Four
Council Agenda Report
By November 1991, State Water decisions by other SLO
County cities may be known, although only San Luis Obispo
will hold a regular election at that time. If the Santa
Barbara scenario plays out as expected, the results of
that election will also be known.
• Voter Turnout. Voter turnout is a highly variable
matter, depending to a large degree on the issues and
scope of the ballot. Based on past history, however, the
City Clerk estimates that turnout for either a June
Special Election or the November regular election is
likely to be similar, in the 35% to 40% range.
• Cost. A special election could cost the City as much as
$50,000, whereas adding the State Water question to the
November 1991 ballot could only cost an additional $4,000
$5,000.
• Special Election for Other Issues? At the present time,
it is not mandatory for the City to hold a special
election for other issues. With respect to the WATER
Initiative petition, the City Clerk has indicated that
a Certificate of Sufficiency will be submitted to the
Council soon for acceptance. Because the petition did
not qualify for a special election, it will therefore be
scheduled for the next Regular Municipal Election in
November 191. However, if a special election is held for
State Water, Council could add the WATER Initiative
question on the same ballot.
With respect to Tract 1750, a referendum was filed in the
City Clerk's Office on November 1, with 4,633 signatures.
Because only 2,482 signatures (10%) are required, the
referendum appears likely to qualify, necessitating
placing this issue on the next Regular Municipal
Election. However, like the Water Initiative, it could
be placed on an earlier special election, if desired.
As of this writing, though publically discussed, no
formal proceedings have commenced regarding recall or the
Smoking Ordinance.
2. Binding or Advisory Election?
Although this is primarily a "philosophical" issue, it may be
helpful for Council to consider this question in the context
of election timing. For example, if it is considered
advantageous to schedule the issue for an early special
�•'"'IN�'11 I ►���� c� o san tins oB�s o
Ni;%1111111 N city � p
COUNCIL AGENDA REPORT
Page Five
Council Agenda Report
election (prior to completion of the EIR) , the Council may
prefer an advisory election so that community input is
obtained at an early time, but a final decision deferred until
the EIR is available.
Whether the Council chooses a binding or advisory vote, the
specific ballot language will be a matter of importance.
While staff will return to Council at a later time with ballot
language alternatives (after the question of binding versus
advisory is resolved) , outlined below are binding/advisory
language examples used in previous elections:
Binding
"Shall the City Charter be amended to allow the City Attorney
to prosecute misdemeanors as infractions?" (June 1986)
"Shall the City Charter be amended to add Section 908 to
require that annexed lands may only be developed consistent
i'
with the General Plan?" (November 1985)
Advisory
"Should the City of San Luis Obispo amend its Growth
Management Ordinance to apply to all development in our City?"
(November 1989)
"Should the City continue programs to protect sensitive
hillsides including consideration of the purchase of open
space?" (November 1983)
Summary of Issues
In order to properly plan for an election on the State Water
Project, direction from the Council at this time is requested
regarding the following two questions:
1. Should a special election be held regarding City participation
in the State Water Project, or should the issue be scheduled
for the next regular election in November 1991 (if a special
election is preferred, in what month should it be held)?
2. Should the election be binding -or advisory in nature?
�- 5
���i�II�IIII�IIIpi�I 11 city of san tuts oBispo
UNGs COUNCIL AGENDA REPORT
Page Six
Council Agenda Report
ALTERNATIVES
1. The Council may determine that in light of all current
information, it would be preferable for the City Council to
decide on the State Water issue without taking the matter to
an election.
2. The Council may determine that a survey of resident opinion
concerning the State Water project would be preferable to
holding either a special or regular election on the issue
(e.g. , in utility bills) . Such an approach would provide
greater flexibility and lower cost than a special advisory
election. However, it would be a less formal and controlled
process than an election.
ATTACHMENT:
County Memorandum
KH\state.wtr
09/25/90 13:17 SRN LUIS OBISPO _MUNTY ADMIN OFC 002
C' County of San Luis Obispo
C0j jx,nr GovMMffr cFx"ju SAK Luis OnL%a.caupow+u 93408 (805)549-SOI I = _TO: CHRIS CHRISTIANSEN, CITY MANAGER
CITY OF ARROYO GRANDE
RAY WINDSOR, CITY MANAGER OmrroF'nu
CITY OF ATASCADERO C.UMNAUMINMUTOR
ARNOLD DOWDY, CITY ADMINISTRATOR
CITY OF GROVER CITY
GARY NAPPER, CITY ADMINISTRATOR
CITY OF MORRO BAY
JERRY BANKSTON, CITY MANAGER
CITY OF PASO ROBLES
RICHARD L. KIRKWOOD, CITY MANAGER
CITY OF PISMO BEACH.
JOHN DUNN, CITY ADMINISTRATOR
CITY OF SAN LUIS B SPO
FROM: ROBERT E. HENDRIX OUNTY ADMINISTRATIVE OFFICER
DATE: SEPTEMBER 25, 1990
SUBJECT: Lf1;5CISSIW MATERIALS TCR MAYM;1S AND MANAGERS MEEMG - SEPTE[4= 26,
�} 1990
`J I asked the Engineering Department to put together some information for you and
your Mayor about the State Water.project as this might have a bearinq on the
matter of advisory elections. Following are a listing of potential State water
users, a discussion on elections and alternatives.
Who are potential State water users?
a. Cities
(1) San Luis Obispo '
(2) Atascadero (Served by Atascadero Mutual Water Co.)
(3) Paso Robles
(4) Arroyo Grande
(5) Grover City
(6) Morro Bay
(7) Pismo Beach
b. Community Services District
(1) Nipomc
(2) Oceano
(3) Templeton
CF` �
09/25/90 " . 13:17 SAN LUIS OBISPO "WTY ADMIN OFC 003
C. County service Areas (Board of Supervisors)
i
(1) Los Osos (Also served by Cal Cities Water Company, a private
ccMparry regulated by public Utilities Commission and S & T Mutual
Water Company)
(2) Shandon
d. Water Works Districts (Board of Supervisors)
(1) Cayucos (Also served by two mutual water companies - Paso Robles
Beach Water.Association and Morro Rock Mutual Water Company)
(2) Santa Margarita
e. County water Districts (Governed by own Board of Directors)
(1) Avila Beach County Water District
f. other potential users that may not, or can not, participate in an
Advisory Election
(1) County Operations Center/E1 Chorro Park
(2) California Men's Colony
(3) Cuesta College
(4) Port San Luis Harbor District
(5) Cal Cities water Service Areas for:
(a) County Club/Rolling Hills Estates
(b) Nipomo ( `~
The timing of the environmental review on the project appears to have a bearing
on when an advisory election might occur. The lead times involved in the
election's process area also relevant.
Assuming that elections should not be held until EIR's for 'both Coastal
Branch (State project) and Local Projects are certified; the State now
thinks that the Coastal Branch EIR could not be certified, in light of
comments received, until. some time in 1991. The County Environmental
Coordinator .gave August 1991 as a target certification date for Local
Projects EIR (Regional Treatment Plant and Spur Lines).
The elections process requires about 90 daysl from time the Board places
an item on the ballot before the election takes place. The Election Clerk
within that time must take arguments for. and against the measure, obtain
rebuttals for and against the measure and provide for printing of ballot
pamphlets and the ballots themselves.
The dates that elections can take place are limited. The earliest potential
date is November 5, 1991. If this date is selected for Advisory Elections then
the last reasonable date for Board of Supervisors action to consolidate
elections would be August 61 1991. A better decision date would be in July to
give the Board flexibility. If November 1991 were chosen, we would estimate
about a 30% voter turnout.
• �1
J
------------------------
('actually
---------- --- -----
('actually varies from Be to 113 days)
09-/M. 90 13-18 SAN LUIS OBISPO COLkTTY ADMIN OFC 001
The next available election day is the second Tuesday of April 1992 Qk city
election Sol' the general 1$ cities.) Next are the regular elections. The
the first Mond y he NZ os bndaYer 1992'.in one 1992, and the first Tuesday after
ezoept the City of San Luis Obispo, hold olectims
In this County, all cities. the even numbered years.. The city of San Luis
in .lune or Novet o November
j� earn to corresyond with the
Obispo thango3 to Nove�n+ber O! the odd numbered yearn
school districts and special districts elections.
other alternativewe identified for oeeking ennstitueat opinion are: a mail
s
ballet on a day other than the three�reg be ion ce a comply above.
Unfuit�unately, ouch an edvisOrY mailing 4>;tio e
requis�ament,Q of the gljy aW Code for a.mail ballot. oii an Advisory qu
SE�ooandly� there is the altPlnative of using questionnaires mailed with water
bills. This aoul,d save mmey and .rumAt in a great response than might be
expected in an off-year alection.
I hope this Info oration in the discussion. Wr issuca at.the meeting. I
asked Clint Milne to attend.and to assist with any questions that may arise.
u nEx:njm
#3/advisory
a-9