LAFCO
Lake County Sanitation District Sphere of Influence March 20, 2013
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
LLAACCOOSSAANN SSPPHHEERREE OOFF IINNFFLLUUEENNCCEE UUPPDDAATTEE
The Commission is charged with developing and updating the Sphere of Influence (SOI)
for each city and special district within the county. Once LAFCO has adopted the MSR
determinations, it must update the SOI for the Lake County Sanitation District (LACOSAN).
An SOI is a LAFCO-‐approved plan that designates an agency’s probable future boundary
and service area. The definition for a Sphere of Influence in Government Code Section
56076 is a “Sphere of Influence” means a plan for the probable physical boundaries and
service area of a local agency, as determined by the Commission. Spheres are planning tools
used to provide guidance for individual boundary change proposals and are intended to
encourage efficient provision of organized community services and prevent duplication of
service delivery. Territory cannot be annexed by LAFCO to a city or district unless it is
within that agency's sphere. The purposes of the SOI include the following: to ensure the
efficient provision of services, discourage urban sprawl and premature conversion of
agricultural and open space lands, and prevent overlapping jurisdictions and duplication of
services.
The Cortese-‐Knox-‐Hertzberg (CKH) Act requires LAFCO to develop and determine the
SOI of each local governmental agency within the county and to review and update the SOI
every five years, as necessary. LAFCOs are empowered to adopt, update and amend the
SOI. They may do so with or without an application and any interested person may submit
an application proposing an SOI amendment.
While SOIs are required to be updated every five years, as necessary, this law does not
necessarily define the planning horizon of the SOI. The term or horizon of the SOI is
determined by each LAFCO. In the case of Lake LAFCO, the Commission’s policies state that
an agency’s near term SOI shall generally include land that is anticipated to be annexed
within the next five years, while the agency’s long-‐term SOI shall include land that is within
the probable growth boundary of an agency and therefore anticipated to be annexed in the
next 20 years.
LAFCO may recommend government reorganizations to particular agencies in the
county, using the SOIs as the basis for those recommendations.
In determining the SOI, LAFCO is required to complete an MSR and adopt six
determinations.
In addition, in adopting or amending an SOI, LAFCO must make the following
determinations:
Present and planned land uses in the area, including agricultural and open-‐space
lands;
Present and probable need for public facilities and services in the area;
Present capacity of public facilities and adequacy of public service that the agency
provides or is authorized to provide;
Existence of any social or economic communities of interest in the area if the
Commission determines these are relevant to the agency; and
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
For an update of a sphere of influence of a city or special district that provides
public facilities or services related to sewers, municipal and industrial water, or
structural fire protection, the present and probable need for those public facilities
and services of any disadvantaged unincorporated communities within the existing
Sphere of Influence.
Additionally, the CKH Act stipulates several procedural requirements in updating SOIs.
It requires that special districts file written statements on the class of services provided
and that LAFCO clearly establish the location, nature and extent of services provided by
special districts.
By statute, LAFCO must publish a notice and notify affected agencies 21 days before
holding the public hearing to consider the SOI and may not update the SOI until after that
hearing. The LAFCO Executive Officer must issue a report including recommendations on
the SOI amendments and updates under consideration at least five days before the public
hearing.
Lake LAFCO Sphere of Influence Policies
In addition to State requirements for SOIs, Lake LAFCO has adopted policies regarding
Spheres of Influence in the County and minimum requirements necessary in order to
update or adopt an agency’s SOI. Highlighted requirements are summarized as follows:
1. The Sphere of Influence Plan must be consistent with LAFCO’s policies, State law,
other agencies’ SOI plans, the municipal service review, and long range planning
goals of the area.
2. LAFCO will not include lands that are unlikely to require the services of the agency
or which cannot be feasibly served within a time frame consistent with the sphere
plan.
3. Agencies are encouraged to keep the supporting documentation for their SOI plans
up to date.
4. Sphere of Influence Plans have to be updated every five years or more frequently.
5. If an agency is unable to provide an adequate level of service within a portion of its
service area boundaries within the time frame provided for that boundary, the
Sphere of Influence Plan has to be updated so that the probable service boundaries
are consistent with the determinations in the Municipal Service Review.
6. A District Sphere of Influence Plan shall contain the following:
a. Proof that the territory within the District’s SOI is likely to require the
district’s services and that the district has or will have the capacity to serve
the area at the appropriate level.
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
b. In the case of multi-‐service districts, LAFCO has to adopt an SOI plan for each
distinct function or class of service provided by a district. These sphere plans
may or may not be coterminous. Each sphere shall establish the nature,
location, and extent of the functions or classes of services provided by the
district. In this case, LACOSAN is a single purpose district which provides
wastewater collection, treatment, disposal and water recycling services to
most residents in Lake County.
c. LAFCO adopts a sphere of influence plan for a newly formed district within
two years of the completion of formation proceedings.
7. Amendment proposals involving sphere expansion to include open space or prime
agricultural land will not be approved by LAFCO if there is sufficient alternative land
available for annexation within the existing sphere of influence.
LACOSAN Service Setting
Lake County is located in the north central portion of California, north of the San Francisco
Bay Area. It takes its name from Clear Lake, the dominant geographic feature in the County.
As of 2000 the population was 58,665 including 23,974 households, and 15,367 families;
this increased to a population of 64,053 including 26,548 housing units on July 1, 2010. The
County seat is Lakeport. Lake County was formed in 1861 from parts of Napa and
Mendocino counties. The County has a total area of 1,329 square miles, including 72 square
miles (5.38%) of water.
The most common wastewater treatment methods used in Lake County include aerated
lagoon and facultative (bacterial) systems. Three of LACOSAN’s four treatment plants have
been significantly upgraded over the past ten years to accommodate larger flows and
maintain secondary treatment standards consistently. Other important issues in the Lake
County area concerning wastewater disposal include winery waste disposal and septage
disposal from septic tanks.
LACOSAN Boundary History and Sphere of Influence
The Lake County Sanitation District (LACOSAN) was formed by Resolution 63-‐196 by the
Lake County Board of Supervisors on December 9, 1963, a few weeks before Assembly Bill
1662 (Knox), the legislation that originally created LAFCos, became law. Prior to the
passage of Resolution 63-‐196, the Lake County Board of Supervisors passed Resolution 63-‐
175 (November 4, 1963), a resolution of intention to form LACOSAN, pursuant to the
provisions of 4700 et seq. of the Health and Safety Code known as a “County Sanitation
District.”
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
The original District excluded all the incorporated areas within Lake County at the time of
formation. Lakeport (the only incorporated area at that time) was excluded from territory
within LACOSAN. Lakeport and surrounding areas were detached in 1971 and 1973
(Resolution 71-‐161 and 73-‐148). Since no incorporated territory was included in
LACOSAN, the Lake County Board of Supervisors was established as its Board of Directors.
Since its inception, the LACOSAN district boundary has decreased in size due to various city
of Lakeport reorganizations, the detachment of the territory within the Clearlake Oaks
County Water District and a detachment of agricultural land in Big Valley in 1985. Over the
years, the District has experienced increased development and the establishment of
Assessment Districts. In 1972, LAFCO approved Resolution 72-‐1 and the LACOSAN Board
of Directors passed Resolution 72-‐53, ordering the detachment of the Clearlake Oaks
County Water District territory consisting of 2,325 acres.
According the State Board of Equalization records, there have been approximately 19
detachments from LACOSAN associated with City of Lakeport annexations since its
formation.
LAFCO approved the incorporation of the City of Clearlake in 1980. The LAFCO resolution
ordering the incorporation did not include any detachment from LACOSAN. LAFCO
Resolution 2-‐80, approving the incorporation of the City, determined that “the proposed
incorporated City of Clearlake will not be successor to any special district presently
providing municipal services.” Land in the City of Clearlake was never detached from
LACOSAN for that reason.
In 1983 the Lake County Board of Supervisors, acting as Conducting Authority, approved
Resolution 83-‐350 forming the Hidden Valley Lake Community Services District for the
“purposes of maintaining and constructing public improvements, namely sewer and water
services within the boundaries of the District.” The Hidden Valley Lake CSD (HVLCSD)
remains within LACOSAN district boundary, creating a boundary conflict whereby two
districts provide the same type of services. The HVLCSD was never detached from
LACOSAN.
In 1986 LAFCO approved Resolution 14-‐84 and the Board of Directors of LACOSAN
approved a detachment of 1,874 acres of agricultural lands from LACOSAN in Big Valley
known as the “Big Valley ‘AG’ Detachment.”
In 1997 LAFCO approved Resolution 97-‐02 Approving a Reorganization between City of
Lakeport Municipal Sewer District (CLMSD) and LACOSAN detaching 387.4 acres of
territory located outside the City of Lakeport yet within CLMSD to LACOSAN. This
reorganization included unincorporated territory north of the City of Lakeport. Over the
years, multiple reorganizations have taken place in which unincorporated territory was
detached from LACOSAN and annexed to the City of Lakeport and the CLMSD.
LAFCO approved a Sphere of Influence for LACOSAN on August 21st, 1985 and adopted
LAFCO Resolution 6-‐85, which was intended to include the words “Lake County Sanitation
District” and 9-‐85, which amended Resolution 6-‐85 and corrected it to include Lake County
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
Sanitation District. Attached are the adopted current Sphere of Influence maps and Sphere
of Influence Resolutions for the Lake County Sanitation District.
SSPPHHEERREE OOFF IINNFFLLUUEENNCCEE UUPPDDAATTEE
Existing Sphere of Influence Boundary
The 1985 LACOSAN SOI includes territory contemplated to be “Ultimately” served by
the Lake County Sanitation District1. This Sphere generally included the territory
surrounding the City of Lakeport but did not include the incorporated territory; territory
surrounding Clearlake which was identified in the 1980 General Plan to be urbanized, The
City of Clearlake; unincorporated territory including Upper Lake, Hidden Valley Lake,
Middletown, Lower lake and surrounding areas and Spring Valley Lakes. In other words
territory designated in the 1980 General Plan where existing and (or) anticipated growth
was contemplated.
SOI Options
Six options are identified with regard to LACOSAN’s SOI. These options are discussed
below:
Option #1 LAFCO may wish to consider a status quo Sphere of Influence (see the attached
maps showing the existing 1985 sphere). Initial concerns are that LACOSAN is in the
process of providing service to Anderson Springs, in 2008 the County adopted a new
General Plan and prior to that adoption, the County adopted numerous area plans and in
2009 the City adopted a new General Plan. In addition the City of Lakeport adopted a
General Plan and LAFCo is in the process of updating the City’s Sphere of Influence, which
may change the territory. In addition territory has been annexed to the City over the past
25 years, which would need to be reflected in the new Sphere. In brief, land use patterns
and local policies were significantly changed since 1985.
Option #2 LAFCO may wish to update the SOI to only those areas currently served by
LACOSAN. LAFCO would be signaling a no more growth position although since most
territory in the County is already within LACOSAN, this would have no bearing on
expansion of existing or establishment of new service zones. This option would not be
consistent with the County’s General Plan, which is in part intended to guide future growth
and development in Lake County.
Option #3 LAFCO may wish to create a sphere conterminous with Spheres of other
agencies such as the City of Clearlake, the Upper Lake Co. Water District, the Callayomi
County Water District, etc. (excluding the Clearlake Oaks CWD, the City of Lakeport and the
Hidden Valley Lake CSD). This approach may also be inconsistent with the Lake County
General Plan since many small communities do not have “other” services agencies where
LAFCo adopted a sphere in the first place.
1 The definition of a sphere of influence has changed since 1985 the word “ultimate” has been replaced with “probable” and is now
defined as “… a plan for the probable physical boundaries and service area of a local agency, as determined by the Commission”
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
Option #4 An approach may be to use the recommendations of the adopted County
General Plan to include LACOSAN’s Sphere of Influence and the Community Growth
Boundaries mapped in the General Plan. See the attached General Plan map showing the
Community Growth Boundaries. Concerns are the Community Growth boundaries do not
totally surround Clear Lake nor include Anderson Springs and several other smaller
communities in Lake County. The SOI would not include areas previously detached from
the district. This Option is consistent with LACOSAN’s full buildout analysis.
Option #5 The Sphere of Influence should exclude the Big Valley Agricultural Detachment
area near Finley and other agricultural areas in Lake County, the City of Lakeport’s Sphere
and incorporated area, the Sphere of Influence and district area for the Hidden Valley Lake
CSD, and the Clearlake Oaks County Water District, and the area surrounding the City of
Lakeport previously detached in 1972 and 1973.
Option #6 This is the Recommended Option: This approach would be to include the larger
of the Community Growth Boundaries, existing service areas or zones, and LAFCo’s Sphere
of Influence for various service districts. An example being the Lower Lake Sphere vs. the
Lower Lake Community Boundary. In this case the Sphere is larger than the Community
Growth Boundary because the district serves a larger area. In other cases, the reverse may
be true. The Sphere would have to also include territory and small communities, which are
planned and zoned for urban uses. i.e. areas where there are commercial and residential
development on lots smaller than 2 acres in size, for example. The Sphere would not
include areas previously detached from the district, and the Sphere would need to protect
Clear Lake by including urban and planned urban areas surrounding Clear Lake since water
pollution would impact the Lake. This option would also include the Lower Lake County
Waterworks District Sphere of Influence boundaries and Corinthian Bay (wastewater
service areas 9-‐1, 9-‐2 and 9-‐3). It should be noted that areas within County Service Areas 2
(Spring Valley), 22 (Mt. Hannah), 20 (Soda Bay), 7 (Bonanza Springs) and 18 (Starview) are
very long term. This option is consistent with LACOSAN’s full build out analysis
Recommended Sphere of Influence Boundary
It is recommended that the Commission adopt Option #6 and align LACOSAN’s SOI as
closely as possible with existing County Development Areas, as located and described in the
2008 County General Plan, not include agricultural or wildlands lands where there is no
urban development, territory within the Sphere of Influence of the City of Lakeport (the
City of Clearlake uses services provided by LACOSAN), not include territory served or
anticipated to be served by another wastewater service provider or territory previously
detached from the district.
The Cities act as the land use authority and planner of the area within city limits and its
SOI, determines and guides where new growth will be located. In this case, the City of
Lakeport is a Wastewater Service Provider distinct from LACOSAN. In the unincorporated
areas, the County is the land use authority and planner for the area. Wastewater services
are generally only needed in more densely populated areas, which will be primarily within
the boundary or Sphere of Influence of a water service provider or territory served by a
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
community water system. As such, it seems that LACOSAN’s SOIs should closely align with
the City of Lakeport’s SOI, the community development areas, developed areas, areas
contemplated for urban development, and where demand for services will be concentrated.
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
Adopted Sphere of Influence Determinations
Nature, location and extent of any functions or classes of services
Lake County Sanitation District (LACOSAN) provides wastewater collection and
treatment and disposal. All services are provided directly by LACOSAN staff.
Wastewater treated at LACOSAN’s Northwest, Southeast and Middletown
Wastewater Treatment Facilities is delivered to the Southeast Geysers Injection area
located in Lake and Sonoma Counties.
LACOSAN and CLMSD have an agreement for wastewater treatment in which
wastewater treated in North Lakeport is transported to LACOSAN’s Northwest
Treatment Plant and wastewater treated South of Lakeport is treated in the CLMSD
treatment facility south of Lakeport.
Other major wastewater collection and treatment service providers in Lake County
include the City of Lakeport Municipal Sewer District, the Hidden Valley Lake
Community Services District, the Clearlake Oaks County Water District and the
Kelseyville County Water Works District#3.
Present and planned land uses, including agricultural and open-space lands
The Lake County General Plan was updated in 2008, the City of Lakeport’s General
Plan was updated in 2009, and the City of Clearlake’s General Plan was adopted in
1983. These plans contain land use policies, standards and goals for growth and
development throughout the Cities and the County.
There are 14 defined land uses designations in the 2008 Lake County General Plan.
Land uses are primarily Urban, Rural Residential, Agriculture, Commercial,
Industrial, Agricultural and Public.
Lake County has substantial land in rural lands, agriculture and public ownership,
which will provide for ample open space.
Present and probable need for public facilities and services
State Department of Finance Growth projections for Lake County project a 2020
population of 70,8912. The continuation of the economic downturn has resulted in
lower state population estimates since previous estimates were based on pre-‐
recession data.
The MSR reported LACOSAN had existing connections and connection capacity as
follows: The Northwest RWTP has 4,512 existing connections as of November 21,
20123 and a total service capacity of 9,534 connections. The Southeast RWTP has
8,501 existing connections as of November 21, 20124 and has a total service
capacity of 13,405 connections.
2 Interim Projections for California and Counties July 1, 2015 to 2050, May 2012.
3 Lake County Special Districts Administration, “Current Operations by Utility Area”, 11/21/2012.
4 Lake County Special Districts Administration, “Current Operations by Utility Area”, 11/21/2012.
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
The MSR reported the Middletown WTP had 735 existing connections5 and a total
service capacity of 933 connections. LACOSAN is in the initial stages of increasing
service capacity of the Middletown WTP. It may include a collection system in the
Anderson Springs area will into the future.
Between 2011 and 2012, Lake County’s population has declined -‐1.7 percent
growth. However, between 2000 and 2010 the County’s population has increased
by 6,456 persons over the decade, slightly higher than 1 percent per year.
It is anticipated that there will be continued need for wastewater collection and
treatment, which will demand continued service by LACOSAN.
LACOSAN has developed Facility Plans for its three wastewater treatment plants,
and is in the process of updating comprehensive Master Facilities Plans covering the
collection systems of all four of the treatment plants.
Present capacity of public facilities and adequacy of public services that the agency
provides or is authorized to provide
At present, the District is only using 47 percent of its permitted capacity at the
Northwest RWTP; 63 percent of its permitted capacity at the Southeast RWTP; and
78 percent of its permitted capacity at the Middletown WTP, based on average dry
weather flow.
Based on indicators of service adequacy including sewer overflows and collection
system integrity, the District appears to provide adequate services. It is anticipated
that the level of service offered by the District will continue to improve as has been
the case over the past 10 years.
LACOSAN conducts performance evaluations, productivity monitoring, and has a
standardized means to track complaints and service requests.
Existence of any social or economic communities of interest
The area served by LACOSAN within County of Lake is clearly both a social and
economic community with regards to services provided by LACOSAN.
Present and probable need for public facilities and services of any disadvantaged
unincorporated communities within the existing Sphere of Influence
The determination of a Disadvantaged Unincorporated Community appears to be
subjective by agency. According to 2010 US Census Designated Places Data, the
Cobb Area and the Hidden Valley Lake Area (not served by LACOSAN) does not meet
the criteria to be considered a disadvantaged unincorporated community. However,
other state and federal agencies (SWRCB, CDPH, USDA Rural Development) consider
the entire unincorporated area of Lake County to be disadvantaged since those
agencies use countywide data.
5 Lake County Special Districts Administration, “Current Operations by Utility Area”, 11/21/2012.
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
A majority of the area within and adjacent to areas served by LACOSAN and its SOI is
considered disadvantaged with a median household of less than 80 percent of the
statewide median income. The Median Household Income for California s 60,883
and the Median Household Income for Lake County is 39,491 and to be considered a
DUC the Median Household Income must be less than 48,706.
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Lake County Sanitation District Sphere of Influence
Adopted by Lake LAFCo March 20, 2013 LAFCo Resolution 2013-0001
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