HomeMy WebLinkAbout06.a.1 RESPONDING TO REQUESTS REGARDING THE AVAILABILITY OF CCCSD SEWER SERVICE~. 0., ~~
Central Contra Costa Sanitary District
April 30, 2010
TO: THE HONORABLE BOARD OF DIRECTORS
VIA: JAMES M. KELLY, GENERAL MANAGER ~~
ANN E. FARRELL, DIRECTOR OF ENGINEERING~L,,~~~jj,, ~l
FROM: CURTIS SWANSON, ENVIRONMENTAL SERVICES DIVISION V
MANAGER o
JARRED MIYATOMO-MILLS, PRINCIPAL ENGINEER ~~7q~0
SUBJECT: RESPONDING TO REQUESTS REGARDING THE AVAILABILITY OF
CCCSD SEWER SERVICE
SUMMARY: Recently there have been three inquiries regarding extending sewer
service to areas outside the County Urban Limit Line. Staff suggests that it would be
appropriate to review these situations with the Board to ensure that our responses to
these inquiries are consistent and clearly reflect Board policy.
FACILITY CAPACITY AVAILABILITY AND ALLOCATION: Our current practice is to
make capacity available to new connections on a first come, first served basis.
Capacity is not committed to any connector until they pay their connection fees.
Therefore, when a project is in the planning stages, parties inquiring about sewer
service are told that we have limited capacity and it is available on a first come, first
served basis. For the last 30+ years, this has not been an issue, as we have had
adequate permitted capacity. In 2002, our permitted capacity of 53.8 mgd was projected
to be adequate to serve all planned development through 2035, even under the most
conservative assumptions for ground water infiltration (see Figure 1).
However, with the recent update of our collection system master plan, projected
ultimate flows have increased due to increases in planned development. Now, under the
high groundwater infiltration scenario, we project that treatment plant capacity may be
exceeded as soon as 2028 without the Concord Naval Weapons Station development
(Figure 2) and in 2025 with the Concord Naval Weapons Station development (Figure
3). These projections do not include reductions in base wastewater flow that may occur
due to water conservation efforts or reduced groundwater infiltration that may result
from ongoing renovation of public and private sewers. Treatment Plant capacity is
based on handling both the wastewater flow and the sludge generated by removing
pollutants from the wastewater during treatment.
Responding to Questions Regarding the Availability of Sewer Service
April 30, 2010
Page 2 of 4
The first Treatment Plant limitation will be furnace capacity. One furnace can process
the sludge generated from the solids and BOD loading associated with an average daily
flow volume during high groundwater infiltration periods of approximately 54 mgd. As
we approach this flow rate, we will investigate increasing sludge handling capacity,
perhaps by modifying or replacing the furnaces, or by hauling excess sludge some of
,the time. Development and implementation of a sludge handling capacity solution will
take many years. Therefore, planning efforts should ideally be initiated 7-10 years
before increased capacity is needed.
Except for the Alhambra Valley, development outside.the Urban Limit Line is not
included in the above projections and extending service to these areas could potentially
create the need for new incinerators even sooner. Staff felt that the Board should be
aware of this potential constraint as they consider stating a policy regarding serving
development outside the Urban Limit Line (ULL).
DEVELOPMENTS BEING CONSIDERED FOR SEWERING OUTSIDE THE ULL
At this time, there are three areas proposed for development that could involve
extending District sewer service outside the Urban Limit Line. They are as follows:
CCCSD District Annexation 168C -Alhambra Vallev: In Alhambra Valley, there are
nineteen parcels within CCCSD's Sphere of Influence, but outside of the Urban Limit
Line. In response to Board direction, staff is preparing an EIR evaluating the
environmental effects of annexing and sewering nine parcels adjacent to existing
CCCSD sewers, four of which are developed with septic tank systems. To provide a
comprehensive analysis, the EIR will also consider the later annexing and sewering of
ten other nearby parcels that are also both within CCCSD's Sphere of Influence and
outside the Urban Limit Line. The EIR will be distributed for public review soon after the
May 6, 2010 Board meeting.
San Ramon General Plan Amendment: The City of San Ramon is circulating a draft
EIR, which evaluates the impacts of a proposed expansion of San Ramon's Urban
Growth Boundary (its version of an ULL) and Sphere of Influence. Part of this
expansion would incorporate two already developed areas, one sewered by CCCSD
and one sewered by Dublin San Ramon Services District. The remainder of the
proposed expansion would incorporate 1,626 acres in the southern portion of the
Tassajara Valley. A portion of this Tassajara Valley area is also included in a proposed
General Plan Amendment being processed by Contra Costa County as part of the "New
Farm" development (See discussion below). A map from the San Ramon General Plan
EIR document in attached. The EIR does not provide any details on development of the
Tassajara Valley area, but states that it will be addressed as part of a future Eastside
N:\ENVRSRVV+dminNAiyamoto-Mills\ULL DevelopmentVvlemo to Board re outside ULL -Rev 2 jm2.doc
Responding to Questions Regarding the Availability of Sewer Service
April 30, 2010
Page 3 of 4
Specific Plan. As such, the City has not asked if CCCSD could provide sewer service to
this area yet. '
Contra Costa County General Plan Amendment: As noted above,. the County just
started processing a proposed General Plan Amendment for the New Farm
development, a proposal for 771 acres in the unincorporated Tassajara Valley area east
of Danville and San Ramon. The New Farm development will consist of two sites: 1)
the Northern Site, 155 acres north of Camino Tassajara (43 homes): and 2) the
Southern Site, 616 acres (142 homes) south of Camino Tassajara as shown on the
attached map. San Ramon is proposing to include the southern portion of New Farm
within its Sphere of Influence, as discussed above. As part of an "agency comment
request," the County shared with District staff a memo from the New Farm engineer to
the developer, stating that CCCSD could provide service to the Northern Site and that
an alternative for the Southern Site could be developed to transport raw or treated
wastewater to the existing CCCSD collection system in Camino Tassajara. We have
not yet responded to the County regarding the New Farm engineer's suggested service
alternatives.
POLICY ISSUE
The Board has consistently maintained that CCCSD is not a land use planning agency
and that the District exists to provide sewer service to approved development. To
maintain this important distinction, it is imperative that all requests regarding the
availability of CCCSD sewer service be answered consistently. Our historical response
to these request have been as follows:
• CCCSD must be the logical wastewater utility service provider where service
may be available from more than one agency.
• We serve only approved development within CCCSD's annexed boundaries that
has completed the appropriate planning and environmental review process, and
for which there are adequate existing and/or planned CCCSD facilities.
• The collection system and treatment facilities have a finite capacity.
• Once development has been approved, availability of service is on a first come,
first served basis.
• Unless service by gravity is infeasible, pumped service will not be allowed.
• Sewering property where there may be water quality degradation issues
associated with septic tanks is appropriate.
N:\ENVRSRVV~dmin\Miyamoto-Mills\ULL Development\Memo to Board re outside ULL -Rev 2 jm2.doc
Responding to Questions Regarding the Availability of Sewer Service
April 30, 2010
Page 4 of 4
As we reach the limits of our capacity, we may want to consider how capacity is
allocated to proposed development. Going forward, staff recommends that we respond
to requests regarding the availability of CCCSD sewer service as follows:
A. For approved development that is both within CCCSD's annexed boundaries and
the County Urban Limit Line, sewer service connections will be permitted, subject
to the availability of facilities capacity and the other historical limitations stated
above;
B. For approved development in unannexed areas within both CCCSD's Sphere of
Influence and the County's Urban Limit Line, property must first be annexed to
CCCSD before sewer service connections may be permitted, subject to the
availability of facilities capacity and the other historical limitations stated above;
C. For approved development in unannexed areas within CCCSD's Sphere of
Influence, but outside the County's Urban Limit Line, environmental review is
required before annexation and sewer service proposals can be considered;
D. For approved development in areas outside CCCSD's Sphere of Influence, but
within the County's Urban Limit Line, property must first be included within the
Sphere of Influence and annexed to CCCSD before sewer service connections
may be permitted, subject to the availability of facilities capacity and the other
historical limitations stated above;
E. For approved development in areas outside both CCCSD's Sphere of Influence
and the County's Urban Limit Line, CCCSD sewer service is generally not
available and will not be considered unless detailed environmental review
determines that it is required to mitigate a significant existing water quality
degradation issue, the property is included within the Sphere of Influence, and
annexed to CCCSD.
Next year, staff will begin a study of treatment plant capacity and the implications of
exceeding that capacity for two situations: one assuming that development of the former
Concord Naval Weapons Station proceeds, and the second where it does not. The
study will include developing an estimated cost for increasing sludge treatment and
other capacity-related facilities needs, and will consider the financial implications of
different funding options and connection fee. assumptions.
JM2:CWS:
Attachments
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Item No. 6.a.1
Central Contra Costa
Sanitary District
Responding to Requests Regarding
the Availability of Sewer Service
General Manager's Report
May 6, 2010
Responding to Requests for
Public Sewer Service
• Staff seeks Board input to ensure that responses are
consistent and clearly reflect Board policy.
• There are five situations depending on the location of
proposed development:
A. Within CCCSD's annexed territory.
B. Within both CCCSD's Sphere of Influence (SOI) and County
Urban Limit Line (ULL).
C. Within CCCSD's SOI, but outside the County ULL.
D. Outside CCCSD's SOI, but within the County ULL.
E. Outside both CCCSD's SOI and the County ULL.
1
Current Population Projection
• The 2000 Collection System Master Plan Update
- Projected "Build-Out" Population: 529,000
• The 2010 Collection System Master Plan Update
- Projected "Build-Out" Population: 575,000
• Additional "Build-Out" Population per Land Use Planners
Change in Population Projection: 46,000
(mostly densification)
Treatment Plant Master Plan Update
• Next year, staff plans to begin an update
(included in 2010-11 CIB)
- Two Scenarios:
1) WithoutCNWSdevelopment
2) With CNWS development
- Will develop projected schedules & estimated costs:
1) Additional Sludge Treatment Capacity
2) Other Capacity-Related Needs
2
t
How should staff respond to
requests for service?
A. Approved development within CCCSD
annexed boundaries:
- Service is permitted on a first-come first-served basis, subject
to the availability of capacity.
B. Approved development in unannexed areas
within both CCCSD's Sphere-of-Influence
(SOI) and the County Urban Limit Line (ULL):
- Property must be annexed before service will be permitted,
subject to availability of capacity.
How should staff respond to
requests for service?
C. Proposed development within CCCSD's SOI,
but outside the County ULL:
- CCCSD collection and treatment capacity has been
planned for these areas; however, sewer service will not
be considered until detailed environmental impact review
' is completed. Then, the property must-first be annexed
and development plans approved before service will be
permitted, subject to availability of facilities capacity.
3
How should staff respond to
requests for service?
D. Proposed development outside CCCSD's SOI, but
within the County ULL:
CCCSD collection and treatment capacity has not been
planned for these areas and sewer service will not be
considered until detailed capacity, financial and
environmental impact review is completed. Then,
the property must first be included within CCCSD's
SOI, annexed and development plans approved before
service will be.permitted, subject to availability of
facilities capacity.
How should staff respond to
requests for service?
E. Proposed development outside both CCCSD's SOI
and the County ULL:
CCCSD collection and treatment capacity has not been
planned for these areas and sewer service will not be
considered until detailed capacity, financial and
environmental impact review is completed. Then;
the property must first be included within CCCSD's
SOI, annexed and development plans approved before
service will be permitted, subject to availability of
facilities capacity. (Same as for D.)
4
r
Role of Contra Costa LAFCO
• LAFCO sets District Sphere of Influence and boundaries,
based on its determination of the most logical service
provider considering multiple criteria per State law.
• LAFCO may find that CCCSD is the logical service
provider for an area even if it is located outside of the
current SOI, where we have not planned service.
Current Requests for Service
Outside Urban Limit Line
• Contra Costa County -Application for General Plan
Amendment for New Farm development (General Plan
Amendment study underway)
• City of San Ramon -Draft General Plan 2030 includes
southern portion Of New Farm (EIR has been distributed for
review with comments due May 19, 2010)
• Alhambra Valley -EIR under preparation by CCCSD
(Draft scheduled for distribution in late-May 2010)
5
How does the New Farm Applicant's
Proposal Address Sewer Service?
• The New Farm engineer has proposed that CCCSD
serve the Northern Site via a pumping station and
forcemain connecting to an existing public sewer in
Camino Tassajara.
• The New Farm applicant has proposed that the Southern
Site be served with septic tanks, an onsite community
system, by DSRSD or by pumping to CCCSD.
• New Farm is outside CCCSD's SOI and the County ULL.
CCCSD has not planned to provide sewer service.
(Condition E)
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6
How does San Ramon Draft General Plan 2030
address Sewer Service?
• San Ramon proposes to address densification of land
use in a commercial/office area designated the "North
Camino Ramon Specific Plan Area." (Condition A)
• San Ramon proposes to extend its SOI and "Urban
Growth Boundary (UGB)" to include a portion of the
Tassajara Valley designated the "Eastside Specific Plan
Area," which includes the New Farm Southern Site.
• Utility service providers will be identified when the
Eastside Specific Plan is prepared.
• The Eastside Specific Pan Area is outside CCCSD's .
SOI. CCCSD has not planned to provide sewer service.
(Condition E)
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7
How is the Alhambra Valley EIR structured?
• 19 parcels within CCCSD Sphere-of-Influence (SOI), but
outside the County Urban Limit Line (ULL). (Condition C)
• The owners of nine of these parcels near existing
CCCSD sewers have requested sewer service. Four of
these properties are developed.
• The owners of some of the other. parcels are concerned
about.annexation and growth inducing impacts.
• The EIR addresses all 19 parcels, but only the nine
parcels where CCCSD service has been requested are
being considered for annexation at this, time.
• Draft EIR will be ready for public release late-May.
Questions...??