LAFCO
Lake County Sanitation District MSR - November 17, 2010
Read the report at Local Agency Formation Commissions ↗
LAKE LAFCO
MUNICIPAL SERVICE REVIEW
FOR SERVICES PROVIDED BY THE
LAKE COUNTY SANITATION DISTRICT
(LACOSAN)
Adopted
NOVEMBER 17, 2010
LAFCo Resolution 2010-0012
LAKE LAFCO
Table of Contents
1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 LAFCO’s Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Municipal Service Review Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Lake LAFCO Policies and Procedures Related to Municipal Services . . . . . . . 2
1.4 Preparation of the MSR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.5 Description of Public Participation Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.6 California Environmental Quality Act (CEQA) . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 SERVICE AREA SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Regional Setting-Lake County . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Full Circle Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Local Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 HISTORY OF LACOSAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Lake County Sanitation District Formation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Lake County Sanitation District Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 DESCRIPTION OF EXISTING SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Treatment Plant Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 LACOSAN Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.3 Regulatory Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Inflow and Infiltration (I&I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5 Northwest Regional Wastewater Treatment Plant . . . . . . . . . . . . . . . . . . . . . 13
4.6 Southeast Regional Treatment Plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7 Middletown Wastewater Treatment Plant . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.8 Konocti Harbor Resort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5 FINANCIAL REVIEW OF LACOSAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1 Budgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.2 Sewer System Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3 Sewer System Revenue Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4 Sewer System Capital Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.5 Sewer System Capacity Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.6 LACOSAN Area Financial Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6 POPULATION AND CONSISTENCY WITH ADOPTED PLANS . . . . . . . . . . . . . . . . 37
6.1 Lake County Population . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2 Consistency with Adopted Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7 WASTEWATER TREATMENT MUNICIPAL SERVICE REVIEW . . . . . . . . . . . . . . . . 43
7.1 Growth and Population Projections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.2 Capacity and Infrastructure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.3 Financial Ability for LACOSAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.4 Shared Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.5 Government Structure and Accountability . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Appendix A - Foresight Study Tables 55
Appendix B - Local Government Issues 80
ABBREVIATIONS 84
DEFINITIONS 86
REFERENCES AND RESOURCES CONSULTED 91
MUNICIPAL SERVICE REVIEW PREPARERS 92
Adopted November 17, 2010 i
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
1 INTRODUCTION
This report is a Municipal Service Review of wastewater collection and treatment
services provided by the Lake County Sanitation District (LACOSAN). This Municipal
Service Review was conducted in accordance with the State of California LAFCO
Municipal Service Review Guidelines, Section 56430 of the California Government
Code, and Lake LAFCO Policies and Procedures.
The study area includes most of the area served by LACOSAN and excludes Clearlake
Oaks Water District (CLOWD), the Kelseyville County Waterworks District #3, City of
Lakeport and Hidden Valley Lakes because these areas have been reviewed separately.
LACOSAN serves approximately 12,000 customers and operates wastewater treatment
systems at three locations in Lake County. These include the following:
1) Northwest Regional Wastewater system serving the following:
A. Kono Tayee
B. Lucerne
C. Nice
D. North Lakeport
E. Paradise Valley
F. Upper Lake
2) Southeast Regional Wastewater system serving Clearlake and Lower
Lake
3) Middletown system
1.1 LAFCO's Responsibilities
Local Agency Formation Commissions are quasi-legislative local agencies created in
1963 to assist the State in encouraging the orderly development and formation of local
agencies. The Cortese-Knox-Hertzberg Local Government Reorganization Act of 2000
(Government Code §56000 et seq.) is the statutory authority for the preparation of an
MSR, and periodic updates of the Sphere of Influence of each local agency. The
Governor’s Office of Planning and Research has issued Guidelines for the preparation of
an MSR. This MSR adheres to the procedures set forth in the MSR Guidelines.
A Sphere of Influence is a plan for the probable physical boundaries and service area of
a local agency, as determined by the affected Local Agency Formation Commission
(Government Code §56076). Government Code §56425(f) requires that each Sphere of
Influence be updated as necessary, not less than every five years, and §56430 provides
that a Municipal Service Review shall be conducted in advance of the Sphere of
Influence update.
1.2 Municipal Service Review Requirements
The Cortese-Knox-Hertzberg Local Government Reorganization Act of 2000 as
amended by AB1744 and regulations call for a review of the municipal services provided
in the county or other appropriate area designated by the LAFCO.
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The LAFCO is required, as part of the MSR, to prepare a written statement of findings of
its determinations with respect to each of the following:
1. Growth and Population
2. Capacity and Infrastructure
3. Financial Ability
4. Shared Facilities
5. Government Structure and Accountability
1.3 Lake LAFCO Policies and Procedures Related to Municipal Services
The Lake LAFCO adopted policies and procedures related to municipal services on
March 20, 2002. There were amended by action of the Lake LAFCO on July 16, 2003
and November 28, 2007.
1.4 Preparation of the MSR
Research for this Municipal Service Review (MSR) was conducted over a period of
several years and updated in 2010. This MSR is intended to support preparation and
update of Spheres of Influence, in accordance with the provisions of the Cortese-Knox-
Hertzberg Act. The objective of this Municipal Service Review (MSR) is to develop
recommendations that will promote more efficient and higher quality service patterns;
identify areas for service improvement; and assess the adequacy of service provision as
it relates to determination of appropriate sphere boundaries.
While LAFCO prepared the MSR document, LAFCO did not engage the services of
experts in engineering, wastewater treatment, hydrology and other specialists in related
fields; but relied upon published reports and Lake County staff for information.
Therefore, this MSR reflects LAFCO’s recommendations, based on available information
during the research period and provided by Lake County staff to assist in its
determinations related to promoting more efficient and higher quality service patterns;
identifying areas for service improvement; and assessing the adequacy of service pro-
vision for each wastewater treatment area.
LACOSAN is managed and staffed by the Lake County Special Districts Administration
(SDA). The SDA has conducted various studies of LACOSAN with the help of
consultants. This MSR includes relevant information from the various reports. Since the
reports were prepared at different times there may be occasional differences in data.
The most recent report is the Foresight Consulting “Water and Sewer Rate Study
Report” which will be cited extensively. Tables from the Foresight Study are included in
Appendix A at the end of this report.
1.5 Description of Public Participation Process
The LAFCO proceedings are subject to the provisions California’s open meeting law, the
Ralph M. Brown Act (Government Code Sections 54950 et seq.) The Brown Act requires
advance posting of meeting agendas and contains various other provisions designed to
ensure that the public has adequate access to information regarding the proceedings of
public boards and commissions. Lake LAFCO complies with the requirements of the
Brown Act.
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LACOSAN MSR Resolution 2010-0012
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The State MSR Guidelines provide that all LAFCOs should encourage and provide
multiple public participation opportunities in the municipal service review process. Lake
LAFCO has discussed and considered the MSR process in open session, and has
adopted a schedule for completing the various municipal service reviews and sphere of
influence updates for Lake County. Each municipal service review will be prepared as a
draft, and will be subject to public and agency comment prior to final consideration by
the Lake LAFCO.
1.6 California Environmental Quality Act (CEQA)
The Municipal Service Review is a planning study that will be considered by Lake
LAFCO in connection with subsequent proceedings regarding the Lake County
Sanitation District and the Spheres of Influence. The Sphere of Influence review or
update that will follow has not been approved or adopted by LAFCO. This MSR is
funded in the Lake LAFCO’s 2010-2011 Budget. This MSR includes an analysis, to the
extent required by Section 15262 of the CEQA Guidelines, of the environmental factors
that may be affected by the Municipal Service Review process, but will not include the
preparation of an environmental review document.
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LACOSAN MSR Resolution 2010-0012
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2 SERVICE AREA SETTING
2.1 Regional Setting--Lake County
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 58,309 including 23,974 households, and
15,367 families; this increased to a population of 64,053 with 34,645 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. Some of the County’s 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.
2.2 Full Circle Project
2.2.1 Full Circle Project Background
The Full Circle Project in Lake County is a unique public/private partnership of local,
State, Federal and corporate stakeholders and has developed a wastewater-to-electricity
system at The Geysers. Wastewater reuse is a Special Districts initiative to recycle
treated effluent for creation of wildlife habitat, irrigation of agricultural lands, and
generation of geothermal power. Special Districts injection of effluent at the Geysers for
geothermal steam production and power generation is the first of its kind in the world.
The agency’s goal is to maximize the energy, environmental, and economic benefits that
wastewater reuse can achieve for Lake County.1
The Full Circle Project materialized because of high growth in Lake County that strained
public infrastructure and services, including County-operated wastewater treatment
systems. In the 1980s, the Lake County Sanitation District (LACOSAN) found its
wastewater treatment systems deficient in terms of both treatment quality and disposal
capacity.
The State ordered LACOSAN to upgrade its treatment process and find a means of
disposing of larger quantities of effluent. LACOSAN spent several years evaluating
alternative treatment and disposal options, including agricultural irrigation, created
wetlands, and ultimately geothermal injection.
Once the project concept emerged, a group of key stakeholders convened to investigate
its feasibility and pursue project development. The core group included LACOSAN, the
Northern California Power Agency (NCPA), Calpine Corporation, Unocal Corporation,
and Pacific Gas & Electric Company (PG&E).
1 County of Lake, Special Districts Department Website August 2010.
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2.2.2 Full Circle Project Construction
At the heart of the wastewater reuse system is a 50-mile pipeline that collects effluent
from ten communities for injection in the Geysers geothermal steamfield. The first phase
of the recycling pipeline was completed in 1997 between the Southeast Regional and
Middletown treatment plants and the Geysers; the first segment of the Phase 2 pipeline
was completed in 1999 with connection of the Clearlake Oaks treatment plant to the
system; and the remainder of the Phase 2 pipeline to the Northwest Regional treatment
plant was completed in 2003.
The system's first phase delivers an average of 5,400 gpm to geothermal injection wells
operated by the Northern California Power Agency (NCPA) and Calpine Corporation.
These industry partners have achieved a 70 MW increase in generating capacity since
Phase 1 operations began. Phase 2 has increased effluent injection volume by
approximately 20% in normal weather years, and by as much as 150% in drought years.
The existing project consists of a 53-mile, 20-inch (and some 16-inch sections such as
the 24.75-mile section from the Northwest Regional Treatment Plant [NWRTP] to the
Southeast Regional Treatment Plant [SERTP]) diameter pipeline that carries 7.8 million
gallons per day (approximately 2.8 billion gallons annually) of treated wastewater
effluent and Clear Lake make-up water to The Geysers for injection at existing wells
operated by Northern California Power Agency and Calpine.
To move the treated effluent and supplementary lake water, the pipeline uses eight
pump stations totaling 7,370 horsepower, including a 1,600 foot final lift from the Bear
Canyon Road entrance up to the injection area in the southeast Geysers. The project
creates up to 95 MW of generating capacity at six existing power plants operated by
NCPA (Northern California Power Agency) and PG&E, or as much as 625,0000 MWh
annually.
Phase I of the project’s total construction cost is $45 million, including $8 million in
wastewater treatment plant improvements. Construction costs are being shared by the
core group of participants, known as the Joint Operating Committee (JOC), with
additional funding from the California Energy Commission, California Water Resources
Control Board, U.S. Department of Energy, U.S. Department of Commerce, U.S.
Department of the Interior, and the U.S. Environmental Protection Agency.
For Phase I, approximately 40% of the construction costs are industry-funded, 20% are
County funded, and the remaining 40% is divided equally between economic
development and energy resource funds from the Federal and State agencies.
Additionally, the industry participants are investing several million dollars in secondary
pipelines terminus to injection wells in the steamfield.
2.2.3 Full Circle Project Operation
The project’s annual operating costs are approximately $4 million. The JOC members
have signed a 25-year operating agreement wherein LACOSAN will operate the pipeline
as far as the Middletown area, after which it will be industry-operated to its terminus in
the steamfield. Phase I initiated operations in October 1997. Phase 2 (Basin 2000)
initiated operations 2001.
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LACOSAN MSR Resolution 2010-0012
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LACOSAN pays an annual operation and maintenance (O&M) cost share equivalent to
its normal disposal costs, with the industry participants paying the remaining O&M costs
based on the quantity of effluent they each receive at their wellheads.
2.3 Local Setting
This Municipal Service Review covers all of the areas served by the Lake County
Sanitation District. Although there are multiple agencies providing wastewater collection
and treatment services throughout Lake County, many rural areas throughout the
County are currently not served by a sanitary sewer system and rely on private or
community septic systems.
Notwithstanding the ability to obtain an on-site wastewater disposal permit, development
standards in the Lake County Zoning Code for a Single-Family Residential (R-1) Zoning
District require the size of a new parcel of land to contain 15,000 square feet provided
public water is provided. If no public water and no public sewer are provided, the
minimum lot size requirement increases to 40,000 square feet.
Many areas throughout Lake County contain soil types or conditions that are not
conducive to on-site septic disposal systems such as those areas with soils that prevent
adequate filtration. All special districts providing wastewater services currently provide
both wastewater treatment and collection services within the Lake County area.
These wastewater collection and treatment providers include the following:
1. City of Lakeport Municipal Sewer District (CLMSD) provides collection and
treatment of wastewater collected in and around the City of Lakeport. The
collection system that serves Assessment District 9-1 (Lands End, Holiday Cove,
and Reeves Point), as well as Assessment District 9-3 (South Lakeport), is
maintained by LACOSAN. However, the effluent is treated and disposed of at
the City of Lakeport’s Municipal Wastewater Treatment Facility.
2. Lake County Sanitation District (LACOSAN) provides wastewater collection
treatment and disposal for areas north and northwest of the City of Lakeport,
Upper Lake, Nice, Lucerne, Kono Tayee, Paradise Valley, Clearlake, Lower
Lake, and Middletown.
3. Hidden Valley Lake Community Services District (HVLCSD) provides wastewater
treatment and collection service for the community of Hidden Valley Lakes.
4. Clearlake Oaks County Water District (CLOWD) provides wastewater treatment
and collection for the Clearlake Oaks area. This District is examined in a
separate Municipal Service Review. Treated effluent from this plant is recycled
through the LACOSAN Wastewater reuse system. The Clearlake Oaks
Wastewater Treatment Plant and Pump Station have a normal flow of 275 to 500
gpm. Pump station No. 2 has three 250 horsepower vertical turbine pumps,
an electrical equipment building and a surge tank.
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LACOSAN MSR Resolution 2010-0012
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The maximum daily discharge and monthly average dry weather discharge
design capacities are 2.1 and 0.5 million gallons per day (mgd), respectively.
Wastewater flows for the CLOWD range from 0.200 mgd ADWF to 1.0 mgd
AWWF with peak wet weather flows up to 0.813 mgd.
The treatment plant experiences excessive flows during wet weather due to Infill
and Infiltration (I&I) associated with an aging collection system. Treated effluent
is pumped to the LACOSAN southeast reservoir and then pumped by LACOSAN
20 miles southwest to the Geysers for injection into the groundwater.
5. Kelseyville County Waterworks District #3 (KCWD) provides wastewater
treatment and collection for the Corinthian Bay, Kelseyville, and the Clear Lake
State Park. This District is examined in a separate Municipal Service Review.
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.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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3 HISTORY OF LACOSAN
3.1 Lake County Sanitation District Formation
The Lake County Sanitation District (LACOSAN) is headquartered in Lakeport at the
Lake County Special Districts Administration. Special Districts Administration is a County
department that provides water and wastewater collection and treatment services
including nine County Service Areas and the Kelseyville County Waterworks District #3.
The Lake County Board of Supervisors oversees the nine County Service Areas and
also sits as the Board of Directors for LACOSAN and the Kelseyville County Waterworks
District #3.
The District with the largest budget and most assets is LACOSAN. The Special Districts
Administration is able to share resources with other County departments for a variety of
administrative, legal and financial services. The Special Districts Administration has 40
position allocations including administrative, financial, supervisory and technical staff.
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 LAFCO, 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 Sanitary District.”
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 or territory within other
sanitary districts was included in LACOSAN, the Board of Supervisors was established
as its Board of Directors.
3.2 Lake County Sanitation District Changes
Since its inception, the LACOSAN service area has decreased in size yet 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.
In 1979 LAFCO approved Resolutions 7-79 and 8-79 approving the annexation of 11.7
acres to the CLMSD and detaching 11.7 acres from LACOSAN known as the Jeffers-
Ruzicka detachment. Also in 1979 LAFCO approved the detachment of 18,975 square
feet of territory from LACOSAN known as the Harker Detachment.
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.”
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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 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 remains within LACOSAN district territory, creating a conflict of Spheres of
Influence.
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LACOSAN MSR Resolution 2010-0012
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4 DESCRIPTION OF EXISTING SERVICES
4.1 Treatment Plant Use
Average Dry Weather Flows (ADWF) and Average Wet Weather Flows (AWWF) in
Million Gallons per Day (MGD) for LACOSAN’s three treatment plants are as follows:
Facility: Northwest RWWTP
Total Connections: 4,670 (SFDs 5,984)2
Type: Dual-powered, multi-cellular aerated lagoons
Peak WW Flow: 8.5 mgd
Northwest Region: 9,937 population3
Southeast RWWTP
Total Connections: 6,707 (SFDs 8,471)4
Type: Dual-powered, multi-cellular aerated lagoons
Peak WW Flow: 6.1 mgd
Clearlake/Lower Lake: 15,226 population5
Facility: Middletown WWTP
Connections: 733 (SFDs 811)6
Type: Facultative Pond with aeration
Peak WW Flow: 0.34 mgd
Middletown: 1,822 population7
This information is from the three Master Plans. Lake County rate ordinances are based
on 210 gallons per day of wastewater generated per connection (Single Family Dwelling
Equivalent, SFD) for the four treatment plants.8 A planning figure based on the average
of 210 GPD per SFD equivalent9 will therefore be used as a basis for calculation in this
report. LACOSAN completed Master Plans for each treatment plant in 2005. An interim
master plan for the Southeast Regional Collection System was completed in 2009.
4.2 LACOSAN Personnel
LACOSAN operates its four regional wastewater treatment systems with approximately
40 employees. There is one Administrator position overseeing a Deputy Administrator
and three utility area superintendents.10 LACOSAN has all the personnel required to run
a system of this size, and all personnel possess the necessary credentials to adequately
run a wastewater collection and treatment system of this nature.
2 Lake County Special Districts Administration, “Current Operations by Utility Area,” 8/6/10.
3 Lake County Special Districts Administration, “Current Operations by Utility Area,” 8/6/10.
4 Lake County Special Districts Administration, “Current Operations by Utility Area,” 8/6/10.
5 Lake County Special Districts Administration, “Current Operations by Utility Area,” 8/6/10.
6 Lake County Special Districts Administration, “Current Operations by Utility Area” 8/6/10.
7 Lake County Special Districts Administration, “Current Operations by Utility Area”, 8/6/10.
8 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, 2010.
9 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, 2010.
10 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, 2010.
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4.3 Regulatory Setting
Federal, State and local regulations regarding water quality directly affect District policy
regarding the level of service provided for wastewater collection. LACOSAN must
comply with U.S. Environmental Protection Agency (EPA) regulations, as well as the
requirements of California Water Code Section 13000 et seq., the Porter-Cologne Water
Quality Control Act of 1969. This Act charges the State Water Resources Control Board
with protecting the quality of all state waters for beneficial uses and enjoyment. In
discharging this responsibility, the Central Valley Regional Water Quality Control Board
has the authority to issue Waste Discharge Requirements in the region.
Because the District operates wastewater collection systems and treatment facilities, it is
subject to Waste Discharge Requirements issued by the Central Valley Regional Water
Quality Control Board and hazardous materials storage permits and Risk Management
Plans required by the Lake County Department of Environmental Health.
The District also has Air Quality Permits issued by the Lake County Air Quality
Management District. Temporary project-specific Streambed Alteration Permits are
issued by the California State Department of Fish and Game. Temporary project-specific
permits are issued by the U.S. Army Corps of Engineers.11
The District has received a Cleanup and Abatement Order and fines from the Regional
Board. The most recent Notice of Violation was issued on March 7, 2010, primarily for
spills in the Highlands Harbor/Meadowbrook Drive area of Clearlake.
On March 2, 2010, the Board of Directors of the Lake County Sanitation District adopted
an Interim Ordinance No. 2918 establishing temporary restrictions upon connections to
the Southeast Regional Wastewater System and on April 6, 2010, the District adopted
Ordinance No. 2923, An Urgency Measure Adopting an Interim Ordinance Establishing
Temporary Restrictions upon Connections to the Southeast Regional Wastewater
System. The reasons for the Ordinance are that significant inflow problems have
resulted in sewer spills, threatening public health and safety. The inflow problems may
be caused by excessive rainfall and leaks in the system.12
The District is implementing several short term and long term actions to address this
problem. A comprehensive smoke testing program was completed in early August 2010.
Over 200,000 feet of gravity collection pipe was evaluated. A program to seal identified
leaks is underway. The district is implementing a temporary pump station and pipeline
project to prevent spills in the Highlands Harbor area. This will be in place prior to the
winter of 2010.
The Collection System Master Plan prepared in 2009 identified a capital project to
address the problem in a long term manner. It includes the expansion of an existing
pump station (#4) and a 12-inch pipeline directly to the treatment plant. A proposed rate
increase to capitalize this $5.5 million dollar project is currently before the ratepayers. If
successful, this project will be constructed in 2011.
11 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, Ph: (707) 263-0119 F: (707)
263-3826, January 2008.
12 Lake County Sanitation District, Ordinance No. 2923, An Urgency Measure Adopting an Interim Ordinance Establishing
Temporary Restrictions upon Connections to the Southeast Regional Wastewater System April 6, 2010.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
11
LACOSAN received a Cease and Desist (Order # R5-2003-0040) on the Northwest
Regional Wastewater Treatment System on March 24, 2003 whereby the District’s
sewage collection system has historically experienced problems with inundation during
periods of high groundwater or high Lake levels thereby causing a direct discharge of
wastewater to Clear Lake.
Should spills occur in the collection or treatment system, the District is required to file a
Spill Report with the Regional Board. District projects are also subject to the
requirements of the California Environmental Quality Act (CEQA) and in some cases the
National Environmental Policy Act (NEPA).
Below is a description of several problems that occurred in 2008:
Sewage Spill, Lake County Sanitation District Southeast Regional
Wastewater Treatment System, Lake County
On 16 July 2008, the Lake County Sanitation District (Discharger)
reported a raw sewage spill estimated at approximately 510 gallons. The
spill occurred from an overflowing manhole located along Crawford
Avenue and Old Highway 53 in Clearlake, and was contained to a dry
creek bed. The spill resulted from a blockage in the sewer line and was
caused by a combination of debris and grease within the sewer pipe
downstream of the manhole. The Discharger is educating neighborhood
residents located upstream of the sewer blockage on the proper handling
and disposal of fats, oil, and grease. In addition, the Discharger is
enforcing portions of the sewer use ordinance for the maintenance of the
grease trap and installation of a backflow prevention device. On 13
August 2008, staff issued a Notice of Violation for the spill, requiring the
Discharger to provide a written report showing that the grease traps and
the backflow prevention device have been installed at the Elks Lodge,
and that sewer maintenance is conducted on a routine basis. (GJC)
Sewage Spill, Lake County Sanitation District, Lake County
On 15 September 2008, the Lake County Sanitation District (Discharger)
reported a spill estimated at approximately 1,750 gallons from the Geyser
Effluent Pipeline. The spill entered a dry stream bed located along a
stretch of pipeline approximately 1,000 feet north of the Harris Creek
Tank. Following the spill, the Discharger shut down the flow to the
pipeline and replaced a section of the leaking pipe. The pipeline has since
been put back into service. Regional Water Quality Control Board, Lake
County Environmental Health Department (LCEHD), and the Office of
Emergency Services were notified following the spill. Regional Water
Board staff is evaluating appropriate enforcement action. (GJC)
Wastewater Spill, Lake County Sanitation District, Lake County
On 1 October 2008, the Lake County Sanitation District reported a spill
estimated at approximately 4,900 gallons from the Geyser Effluent
Pipeline. The spill was located at Mackey Road and Robin Hill, north of
the City of Lakeport. A leaking air release valve caused the spill. The spill
was stopped by isolating and repairing the air release valve. The pipeline
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
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has since been put back into service. Central Valley Water Board, Lake
County Environmental Health Department, and the Office of Emergency
Services were notified following the spill. Central Valley Water Board staff
is requesting an update on the pipeline maintenance plan. (GJC)
4.4 Inflow and Infiltration (I&I)
LACOSAN wastewater collection facilities are designed to carry the peak flows that
would be expected to occur over the lifetime of the facilities. Unwanted water from Inflow
and Infiltration (I&I) produces greater than desired flow volumes, resulting in excessive
demand on the collection system, higher energy usage and less than optimum
efficiency.
LACOSAN has implemented a series of source detection programs and rehabilitation
methods to control Inflow and Infiltration. These programs and methods include an
aggressive inspection and repair program for manholes, inspection and repair of gravity
lines, smoke testing, and flow measurement. Source detection programs include
seasonally locating, isolating, and repairing source defects during the early morning
hours or during storm events.
Pipeline rehabilitation methods include slip-lining, grout sealing, replacement of
segments or total pipeline replacement, manhole grouting, and manhole replacement.
Pipe bursting with slip lining has been used in several projects. Persistent problems in
the Northwest Regional Wastewater Treatment system due to excessive I&I have led to
the issuance of a Cease and Desist Order as discussed above.
4.5 Northwest Regional Wastewater Treatment Plant
4.5.1 Northwest Regional Wastewater Treatment Plant Background
The Northwest Region Wastewater Treatment Plant is located approximately four miles
north of the City of Lakeport and west of State Route 29.
History of Northwest Regional Wastewater Treatment Plant
The Northwest (NW) wastewater collection system serves the
communities of North Lakeport, Upper Lake, Nice, Lucerne, Kono Tayee
and Paradise Valley. Many portions of the collection system were
constructed 25-30 years ago when inspections were not as
comprehensive as they are today. Due to the age of the collection
system, the close proximity to the lake, and seasonal high lake levels,
Inflow and Infiltration (I&I) is common, and contributes a large percentage
to winter flows.
The high seasonal flows force lift stations to operate for extended periods of time and
almost continuously during multi-day storm events. During these same periods, the
District frequently hires emergency pumper trucks and crews to avoid or minimize
reportable spills in compliance with regulatory requirements. Treated wastewater is
recycled at the Geysers steamfield for electricity production.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
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Status of Northwest Regional Wastewater Treatment Plant
Many areas within the collection system were originally constructed 30
years ago for much smaller communities and typically before substantial
development occurred. Several sections of collection systems within
several Nice/Lucerne hillside neighborhoods have been cut off from
access for routine collection system maintenance and cleaning by
development. Expansion and growth have also resulted in capacity
challenges (both collection and pumping) in several key locations within
the NW system. The 12-month averaged increase (2008) in the NW
customer base is 1.3%. In March of 2003, The Regional Water Quality
Control Board issued a Cease and Desist Order for the NW system. The
Order covers six requirements which must be implemented over a ten-
year period. The District is working diligently to fully comply with that
Order while continuing to serve all customers.
Outlook for Northwest Regional Wastewater Treatment Plant
The District is moving forward with aggressive I&I mitigation and
Hydraulic Modeling for evaluating structure and capacity within the NW
collection system. The model evaluates storage capacity and flow within
the main sections of the trunk line serving the collection system. The
model can be expanded into additional locations within the service area
for evaluating impacts associated with new development. According to
the Master Plan (December 2005), the service area had a potential
capacity for 7,379 connections. All projects greater in size than 3 Single
Family Dwelling Equivalents (SFDs) are required to utilize the NW model.
The model identifies the areas within the collection system where
infrastructure improvements are necessary to accommodate the
development and capacity mitigation and costs.
Customer Statistics and Infrastructure for Northwest Regional Wastewater Treatment
Plant
The Northwest Regional Wastewater Collection and Treatment System currently
includes the following:
• 4,670 Connections (5,984 Single Family Dwelling (SFD) equivalents
including about 800 Residential Unit Equivalents (RUEs) from the City of
Lakeport (added in 2001).
• Over fifteen hundred manholes and 90 miles of pipe within the gravity
collection system.
• 23 lift stations and over 15 miles of force main piping conveying
wastewater to the NW Treatment Plant.
The Northwest Regional Wastewater Treatment Plant includes aerated lagoons serving
5,984 single-family dwelling units (SFD)13 with an average annual flow of 1.66 to 4.1
13 Lake County Sanitation District,
http://www.co.lake.ca.us/Government/Directory/Special_Districts/Wastewater_Systems/Northwest_Regional_Wastewater
_System.htm.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
14
mgd. The treatment plant has a design capacity of 8.5 mgd wet weather flow. SFD
equivalent flow is approximately 210 gallons per day. In 2010, this plant served a
population of approximately 9,937 people14 with 23 pump stations situated around the
northern end of Clear Lake and an 800 acre-foot effluent storage reservoir.
4.5.2 Northwest Regional Wastewater Treatment Plant service to Lakeport
The North Lakeport area was added to the Northwest Regional Wastewater System
under a service contract with the City of Lakeport in 1977. The City pays Northwest
Regional Wastewater System for the operation, maintenance, and future upkeep of the
sewer service.
The City of Lakeport provides the remainder of wastewater treatment and disposal
services to residents within the City Limits south of 16th Street. Treated effluent from the
NWRWTP reservoir, once used for pasture irrigation, is now piped to the Geysers for
injection into the steamfields.
4.5.3 Northwest Regional Wastewater Treatment Plant Requirements
This treatment facility is regulated by CVRWQCB Order No. 5-011-111 and Monitoring
Program both issued on May 11, 2001. This order prescribes requirements for
secondary treatment of 2.0 million gallons per day (mgd) of domestic wastewater with
discharge to an 865-acre-foot effluent storage reservoir. From the reservoir, effluent
may be recycled through spray irrigation as a backup disposal method, discharged to a
constructed wetland; under normal operations discharges are primarily removed by an
effluent pipeline for delivery to the Southeast Geysers Pipeline.
Revised Waste Discharge Requirements (WDRs) were issued by the CVRWQCB to
facilitate improved wastewater collection, treatment, and for additional water conveyance
and recycling process through the implementation of the Full Circle Project. Documented
overflows from the effluent storage reservoir during periods of above-average rainfall
exceeded effluent limitations for water quality A Cease and Desist order (Order # R5-
2003-0040) was issued by the CVRWQCB on March 14, 2003. Discharges from the
storage reservoir no longer occur.
4.5.4 Northwest Regional Wastewater Treatment Plant Collection System
Wastewater is transported through a series of sanitary sewer main pipelines within
subdivision streets, secondary outfall pipelines (large diameter pipelines), major outfalls
(large diameter pipelines), and force mains (pressure pipelines associated with pump
stations). These outfall pipelines convey wastewater to the Northwest Regional
Wastewater Treatment Plant.
The collection system primarily serves residential customers. Small businesses and
restaurants comprise a small percentage of total wastewater flow. The Northwest
Regional Wastewater Treatment Plant does not service any heavy industrial customers.
The system includes 23 pump stations, 110 miles of collection pipe, and 2,000
manholes. These facilities convey wastewater to the NWRTP.
14 Lake County Special Districts Administration, “Current Operations by Utility Area”, 2010.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
15
4.5.5 Northwest Regional Wastewater Treatment Plant Facility
The treatment process starts with the headworks, consisting of a bar screen, followed by
three lagoon cells (Numbers 1, 2, and 3) completely mixed with surface aerators, two
lagoon cells (Numbers 4 and 5) partially mixed with surface aerators, a chlorine contact
pipeline, and the NWRWTP effluent reservoir.
The treatment facility of headworks, distribution boxes, lagoons weirs, and pipelines has
a design peak hour flow (PHF) of 10.0 mgd. The limiting component for hydraulic
capacity in the treatment system is the lagoons. Other design flows are 1.6 mgd average
dry weather flow (ADWF), 5.6 mgd peak month flow (PMF) and 8.5 mgd peak day (or
wet weather) flow (PDF).
The effluent from the NWRWTP effluent reservoir is conveyed to the Southeast Regional
Wastewater Plant effluent reservoir where it combines with effluent from the SERWTP
and the Clearlake Oaks WTP. The reservoir discharges to the Southeast Geysers
Effluent Pipeline. This pipeline runs approximately 26 miles southwest of the SERWTP
to convey effluent to injection wells in The Geysers steamfield.
4.5.6 Northwest Regional Wastewater Treatment Service Build-out
The Northwest Regional Wastewater Treatment Plant has a capacity of 9,534
connections, which is adequate to serve anticipated build-out of 9,031 connections.
There were 4,670 connections on 2010.15 The Northwest Regional Wastewater
Treatment Plant serves six areas. The “Build-out Analysis” shows the following for these
areas:
A. Kono Tayee Wastewater Service
The Kono Tayee Wastewater Service Area has 99 vacant acres with 148 vacant
unserviced parcels. The zoning for this area would allow 249 future dwelling units with
543 future residents.16 The total build-out connections for this area would be 377
compared with 126 existing connections.17 August 2010 data shows 132 active
residential connections, 1 commercial connection and 4 standby connections for a total
of 132 connections serving 132 single-family dwelling equivalents.18 In 2010 LACOSAN
reported 132 connections serving a population of 277.19
15County Special Districts, 2010
16 County Special Districts, “2010
17 County Special Districts, 2010
18 Lake County Special Districts Administration, “Current Operations by Utility Area 2010.
19 Lake County Sanitation District, “Current Operations by Utility Area,” 1/1/10.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
16
B. Lucerne Wastewater Service
The Lucerne Wastewater Service Area has 87 vacant acres with 510 vacant unserviced
parcels. The various zoning designations20 for this area would allow 538 additional
dwelling units with an additional population of 1,168.21 The number of connections at
total build-out would be 2,084 compared with 1,359 existing connections.22 August 2010
data show that Lucerne has 1,823 active residential connections, 38 commercial
connections, and 21 standby connections for 1,491 total connections serving 1,861
single-family dwelling equivalents.
C. Nice Wastewater Service
The Nice Area has 152 vacant acres zoned for development with 854 vacant unserviced
parcels. This would allow 1,012 additional dwelling units and 2,228 additional residents.
The number of connections at total build-out would be 2,344 compared to 1,203 existing
connections.23 August 2010 data show 1,671 active residential connections, 35
commercial connections, and 15 standby connections for a total of 1,671 connections or
1,706 single-family dwelling equivalents.24
D. North Lakeport Wastewater Service Area
The North Lakeport Wastewater Service area has 233 vacant acres zoned for
development and 229 vacant parcels. This would allow 1,172 future dwelling units and
2,540 future residents. There would be 3,366 total wastewater connections at total build-
out compared to 902 existing wastewater connections for this area.25
The area total shows 1,613 active residential equivalent connections, 23 commercial
connections, and 23 standby connections for a total of 1,149 connections and 1,636
single-family dwelling equivalents in August 2010.26
E. Paradise Valley Wastewater Service Area
The Paradise Valley Wastewater Service Area is small compared to other service areas.
This area has 7 vacant acres with 19 vacant parcels all zoned R-1 (Single-Family
Residential). This zoning would allow 22 additional dwelling units and 43 additional
residents. There is also a Planned Development (PD) area that would allow an additional
97 dwelling units with 189 residents. The number of connections at total build-out would
be 109 compared to the existing 72 connections.27
F. Upper Lake Wastewater Service Area
The Upper Lake Wastewater Service Area has 23 vacant acres with 49 unserviced
parcels. This would allow 105 additional dwelling units with and additional population of
270. The number of connections at total build-out would be 669 compared with 577
20 The number of parcels allowed by zoning may be greater than the number that can actually be created by the parcel
map or subdivision map process.
21 County Special Districts, 2010
22 County Special Districts, “2010
23 County Special Districts, “2010
24 Lake County Special Districts Administration, “Current Operations by Utility Area”, August 6, 2010
25 County Special Districts, 2010
26 Lake County Special Districts Administration, “Current Operations by Utility Area”, 2010
27County Special Districts, “Build-out Analysis of Lake County Water and Wastewater Systems” Prepared by Criterion
Planners, www.crit.com, April 2006, p296-297.
Adopted November 17, 2010
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Lake LAFCO
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existing connections in 2010, serving a population of 1,126.28 August 2010 data show
556 active residential connections, 21 commercial connections, and 2 standby
connections for a total of 461 connections and 577 single-family dwelling equivalents.29
4.6 Southeast Regional Treatment Plant
4.6.1 Southeast Regional Wastewater Treatment Plant Background
The Southeast Regional Treatment Plant is located approximately one mile north of the
City of Clearlake. According to the Special Districts website30 the following information is
provided regarding the Southeast Regional Wastewater Treatment Plant:
History of Southeast Regional Wastewater Treatment Plant
The Southeast (SE) system collects and treats wastewater in the
Clearlake area. The collection system extends from Pirates Cove to
Lower Lake and includes the City of Clearlake. Portions of the collection
system were constructed over 30 years ago when materials,
construction techniques and inspections were not as advanced and
comprehensive as they are today. Due to the proximity to the lake and
seasonal high water table, a significant amount of groundwater intrusion
occurs within the collection system during the winter. Seasonal high lake
levels and winter rains also contribute to Inflow and Infiltration (I&I) which
makes up a large percentage of winter flows. The increased flows in the
winter requires the lift stations to operate more frequently, and almost
continuously during multi-day storm events. During more intensive storm
events, the District typically has to hire emergency pumper truck services
to maintain collection system operations, and avoid or minimize
reportable spill events. All treated wastewater is recycled at the Geysers.
Customer Statistics and Infrastructure for Southeast Regional Wastewater Treatment
Plant
The Southeast Regional Wastewater Collection and Treatment System currently
includes the following:
• 6,707 service connections (8,471 Single Family Dwellings (SFDs) serving a
population of 15,226 residents.
• Over nineteen hundred manholes and over 90 miles of collection system piping
within the collection system.
• 23 Lift Stations and over 10 miles of force main piping conveying wastewater
flows to the SE Treatment Plant.
28. Lake County Sanitation District,
http://www.co.lake.ca.us/Government/Directory/Special_Districts/Wastewater_Systems/Northwest_Regional_Wastewater
_System.htm.
29 Lake County Special Districts Administration, “Current Operations by Utility Area”, 10/18/2007
30 Lake County Sanitation District,
http://www.co.lake.ca.us/Government/Directory/Special_Districts/Wastewater_Systems/Northwest_Regional_Wastewater
_System.htm
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
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Status of Southeast Regional Wastewater Treatment Plant
Community growth is resulting in capacity challenges (both collection and
pumping) in several key locations within the system. The 12-month
averaged increase (2008) in the customer base in the SE service area is
2.4%, with the most construction occurring within the AD 1-6 area of the
collection system, east of Highway 53. In February of 2005, the Regional
Water Quality Control Board issued a Cleanup and Abatement Order for
the SE system. On March 7, 2010 a Notice of Violation was issued
primarily for spills in the Highlands Harbor/Meadowbrook areas. The
District is working diligently to fully comply with that Order while
continuing to serve all customers as previously discussed.
Outlook for Southeast Regional Wastewater Treatment Plant
The District is moving forward with aggressive I&I mitigation and
Hydraulic Modeling for evaluating structure and capacity within the SE
collection system. The model evaluates storage capacity and flow within
the main sections of the trunk line serving the collection system. The
model can be expanded into additional locations within the service area
for evaluating impacts associated with new development. According to
the Master Plan December 2005, the service area has a potential
capacity of 13,405 connections. All projects greater in size than 20 Single
Family Dwelling Equivalents (SFDs) are required to utilize the SE model.
The model identifies the areas within the collection system where
infrastructure improvements are necessary.
In April 2010, the LACOSAN Board of Directors approved a system capacity fee for the
collection system. This brings the total fee for a new sewer connection to nearly $10,000
per SFD equivalent.
The SERWTP has aerated lagoons and serves 8,471 SFD equivalents with a 2010
population of 15,226.31 The SERWTP has an average dry weather flow of 0.90 mgd and
a monthly average wet weather flow of 2.30 mgd. SFD equivalent flow is 210 gallons per
day. This treatment facility provides treatment for seven sewer billing areas including six
in the City of Clearlake and one in Lower Lake. Average flow per connection within the
SERWTP service area is 210 gpd per connection or 210 gpd per SFD equivalent.
4.6.2 Southeast Regional Wastewater Treatment Plant Requirements
The SERWTP is subject to RWQCB Board Order #96-166 including Waste Discharge
Requirements and a Monitoring and Reporting Program issued on June 21, 1996.
According to this order, the monthly average wet weather effluent flow shall not exceed
6.1 mgd and the plant’s hydraulic capacity shall not exceed 8.5 mgd of secondary
treated wastewater.
31 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, January 2010, “Lake County
Special Districts Administration Current Operations by Utility Area”.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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As of 1997, treated wastewater is transported to the Geysers for injection into the
steamfield. Board Order #96-166 does not specify a requirement for ADWF. The
AWWF effluent flow is required not to exceed a monthly average of 6.1 mgd and not
exceed the plant hydraulic capacity of 8.5 mgd.
Multiple spills occurred between May and August 2003, in violation of Board Order # 96-
166; a notice of violation was issued on August 21, 2003. LACOSAN was ordered to
submit a Sanitary Sewer System Operation, Maintenance, Overflow Prevention, and
Response Plan by November 1, 2003. That plan was completed. An enforcement action
was taken by the Regional Water Quality Control Board regarding the Southeast
Regional Collection system. Between 2002 and 2004, 26 spills occurred. As a result,
sewage hauling has been required at a substantial cost to LACOSAN. The California
Regional Water Quality Control Board Central Valley Region issued a Cleanup and
Abatement Order No.R5-2005-0704 for the Lake County Sanitation District Southeast
Regional Wastewater System on February 5, 2005. The problems were with the
collection system for the Plant. LACOSAN has completed all of the required actions
from this Order. However, on March 7, 2010 a Notice of Violation was issued for spills in
the Highlands Harbor/Meadowlark area within the City of Clearlake. As a result of this
spill, the district is in the process of implementing several short-term and long-term
measures as previously discussed. The treatment plant has adequate capacity.32
4.6.3 Southeast Regional Wastewater Treatment Plant Collection System
Wastewater is transported through a series of sanitary sewer main pipelines within
subdivision streets, secondary outfall pipelines (large diameter pipelines), major outfalls
(large diameter pipelines), and force mains (pressure pipelines associated with pump
stations).
The collection system includes 23 pump stations, 1,900 manholes and 90 miles of
collection pipe. These outfall pipelines convey wastewater to the Southeast Regional
outfall sewer pipeline, which leads to the Geysers injection area.
According to the Master Plan, “The Southeast Regional Wastewater Treatment Plant
can hydraulically pass 7.8 mgd. This capacity compares to the permitted peak month
flow of 6.1 mgd through the plant.”
The collection system primarily serves residential customers. Small businesses and
restaurants comprise a small percentage of total wastewater flow. The Southeast
Regional System does not service any heavy industrial customers.
32 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, Ph: (707) 263-0119 F: (707)
263-3826, January 2008.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
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4.6.4 Southeast Regional Wastewater Treatment Plant Facility
According to the Master Plan,
A conventional activated sludge plant was decommissioned in 1998 when a new
treatment system was put into service. The SERWTP now consists of headworks
with a mechanical bar screen and bypass channel. Two slide gates split flow to
the north and south treatment lagoons. Each lagoon is divided by baffled curtains
into one fully mixed cell and two partially mixed cells. Four surface aerators
provide mixing in each cell.
Pond effluent enters the chlorine contact channel through a rapid mix structure
containing a mixer where sodium hypochlorite is injected for disinfection. The
flow through the chlorine contact channel is controlled by an inlet weir and an
outlet gate. From this point, the flow is channeled to the effluent reservoir.33
4.6.5 Southeast Regional Wastewater Treatment Area Build-out
Based on the 2006 “Build-out Analysis,” the Southeast Regional Wastewater Treatment
Plant had 6,009 service connections and a total capacity of 13,405 service connections.
The City of Clearlake and the community of Lower Lake have 1,042 vacant acres divided
into 6,201 vacant, unserviced parcels. This would allow 6,455 additional dwelling units
with an estimated additional population of 15,686.34 This shows the WTP has significant
wastewater treatment capacity available to accommodate future growth in the City of
Clearlake and Lower Lake area.
A. City of Clearlake
The Lake County Special Districts Administration divides Clearlake into six improvement
districts. The January 1, 2010 total for Clearlake is 6,113 active residential connections,
159 commercial connections, and 171 standby connections for a total of 6,443
connections and 7,925 single-family dwelling equivalents.35 The 2010 estimated
population served is 14,334.36
B. Lower Lake
In October 2007 Lower Lake had 367 active residential connections, 15 commercial
connections, 4 standby connections for a total of 386 connections and 628 single-family
dwelling equivalents. The 2010 estimated population served is 89237
33 Lake County Sanitation District, “Southeast Regional Wastewater Treatment Plant Master Plan, December 2005,
CH2MHILL,2525 Airpark Drive, Redding, CA 96001.
34County Special Districts, “Build-out Analysis of Lake County Water and Wastewater Systems” Prepared by Criterion
Planners, www.crit.com, April 2006, p.26.
35 Lake County Special Districts Administration, 2010
36 Lake County Sanitation District, “Current Operations by Utility Area,” 1/1/10.
37 Lake County Special Districts Administration, 2010
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
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4.7 Middletown Wastewater Treatment Plant
4.7.1 Middletown Wastewater Treatment Plant Background
Middletown Wastewater Treatment Plant is the smallest wastewater treatment plant
considered in this study according to the Special Districts website.38
History of Middletown Wastewater Treatment Plant
Based on the results of a 1987 study sponsored by the Lake County
Environmental Health Department, the Board of Supervisors adopted a
moratorium on new septic systems and Assessment District 2-2 (AD 2-2)
was established for the purposes of constructing a wastewater collection
and treatment facility. The Middletown wastewater collection and
treatment facility was constructed and started serving the downtown and
surrounding residential areas of Middletown in 1992. In 1999 metered
wastewater metered service to Harbin Hot Springs was added to the
system.
Customer Statistics and Infrastructure for Middletown Wastewater Treatment Plant
The Middletown Wastewater Collection and Treatment System currently includes:
• 733 Connections (699 Single Family Dwelling (SFD) equivalents). The system
also accepts flow from the Harbin Hot Springs area.
• Over 225 manholes and over 10 miles of pipe within the gravity collection
system.
• 3 Lift Stations and over 3 miles of force main piping conveying wastewater flows
to the Middletown Wastewater Treatment Plant.
Status of Middletown Wastewater Treatment Plant
The Middletown facility was originally constructed 19 years ago for a
much smaller community. Over the years, the number of customers has
grown, and the treatment plant and facilities are currently operating near
capacity. The 12-month averaged increase (2008) in the Middletown
customer base is 3.1%. The Twin Pine Casino Expansion came into the
collection system in 2008.
Outlook for Middletown Wastewater Treatment Plant
Expansion of the treatment capabilities are one of the focuses for the
system. Construction of a chlorination facility, other “efficiency
improvements,” and treatment refinements are being looked at to safely
accommodate flows into the system for the existing customer base and
reasonable future growth. The Master Plan for the Treatment Plant was
completed in September of 2005. A new facilities plan and project
definition report will be completed in 2010. This will become the basis for
system improvements. A capital project will be initiated and will require a
rate increase and a system capacity fee increase.
38 Lake County Sanitation District, 2010, www.co.lake.ca.us/Government/Directory/Special_Districts.htm
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
Lake LAFCO
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The District is moving forward toward the development of a Network Hydraulic Model for
the area. The model will provide a tool to better evaluate structure, capacity and flows
within the collection system. The model will identify the areas within the collection
system where infrastructure improvements are necessary including:
1) Improvements to lift stations and force mains to safely convey additional flows,
contribute to the capital improvement program (CIP) based on the development's
percentage of use.
2) Improvements to collection system piping and manholes to safely accommodate
flows, contribute to CIP based on the development's percentage of use.
3) Mitigate I&I to offset the additional flow impacts within key areas of the system.
The Middletown Wastewater Treatment Plant is a facultative pond facility with an ADWF
of 0.12 mgd and AWWF of 0.37 mgd located approximately 2 miles northeast of the
community of Middletown. This WTP serves 733 connections at 812 SFD equivalents
with a population of 1,822.39 Average flow per connection within the WTP service area
is 210 gpd per connection or 210 gpd per SFD equivalent.
The Middletown Wastewater Service Area (AD2-2) does not coincide with the
Middletown Planning Area as described in the Middletown Area Plan.
The Middletown Wastewater Service Area coincides more closely with the Middletown
Community Area. The entire Middletown Planning Area (including Middletown
Community Area) has experienced numerous problems with individual septic systems
since Middletown became a Community Area.
The development of the Middletown Wastewater System by LACOSAN has helped to
reduce the contamination of groundwater in this area but there still are numerous septic
systems in the rural lands around the Middletown Community Area.
4.7.2 Middletown Wastewater Treatment Plant Requirements
The Middletown WTP is subject to the requirements contained in RWQCB Board Order
97-249 and monitoring and reporting program adopted on December 5, 1997. These
requirements call for the treatment of 0.15 mgd average daily dry weather flow and a
peak wet weather flow of approximately 0.5 mgd of domestic sewage from the
community with treatment ponds.
Treated effluent is disposed of primarily through the Geysers effluent pipeline by
injection into the Southeast Geysers steamfield. An existing spray irrigation system is
available for effluent disposal by irrigating fodder crops on a backup basis.
The Middletown WTP is currently operating at approximately 85% of permitted capacity,
assuming a monthly average of 0.15 mgd of wastewater treated. Based on the average
flow per SFD equivalent, an additional 107 SFD equivalents could be permitted before
the WWTP is at full permitted capacity.
39 Lake County Sanitation District, 2010
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According to the 2005 Master Plan, the service area has 204 non-connected single-
family dwellings. Wastewater from an estimated 115 potential connections within the
service area cannot be treated at the current permitted capacity. Improvement planning
for phased treatment plant expansion has recently been initiated.40 (This Master Plan is
in the process of being updated).
4.7.3 Middletown Wastewater Treatment Plant Collection System
Wastewater is transported through a series of sanitary sewer main pipelines within the
community of Middletown, secondary outfall pipelines (large diameter pipelines), major
outfalls (large diameter pipelines), and force mains (pressure pipelines associated with
pump stations).
The Collection system includes three pump stations, 224 manholes, and 19 miles of
collection pipe.41 These outfall pipelines convey wastewater to the Middletown WTP
outfall to its facultative pond area to the reuse pipeline, which leads to the Geysers
injection area.
The collection system primarily serves residential customers. Small businesses and
restaurants comprise a small percentage of total wastewater flow. The Middletown
WWTP does not service any heavy industrial customers.
4.7.4. Middletown Wastewater Treatment Plant Facility
According to the 2005 Master Plan, The Middletown Wastewater Treatment Plant
consists of a facultative pond system consisting of a primary pond, three secondary
ponds, a sodium hypochlorite feed system and contact basin, an effluent storage
reservoir, an effluent pump station, and a spray irrigation system. The effluent is pumped
through the effluent pump station and is disposed of through the conveyance and
injection of the effluent into the Southeast Geysers Effluent Pipeline (SEGEP) for reuse
of the effluent in steam generation at the Geysers geothermal steamfield. The existing
spray irrigation system is used for effluent disposal by irrigating fodder crops only on an
emergency basis. (This Master Plan is currently in the process of being updated)
4.7.4 Middletown Wastewater Service Area Build-out
According to the “Build-out Analysis” (prepared in 2006) the Middletown Wastewater
Service Area has 446 connections. The capacity for wastewater treatment is 933
connections but at total build-out there could be 1,158 connections.42 There are 110
vacant unserviced acres with 107 parcels. Notwithstanding zoning requirements and the
potential for future land divisions, there could be 106 future dwelling units with a
population of 274 in addition to those now served.43
40 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, 2010
41 Mark Dellinger, Special Districts Administrator, 230A Main Street, Lakeport, CA 95453, 2010
42 County Special Districts, “Build-out Analysis of Lake County Water and Wastewater Systems” Prepared by Criterion
Planners, www.crit.com, April 2006, p.40-41
43County Special Districts, “Build-out Analysis of Lake County Water and Wastewater Systems” Prepared by Criterion
Planners, www.crit.com, April 2006, p.40-41
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In August 2010 there were 629 active residential connections, 34 commercial
connections and 1 standby connection for a total of 733 connections or 811 single-family
dwelling equivalents.44
Due to chronic wastewater pollution problems in the Anderson springs area; the County
of Lake is in the process of preparing an Environmental Impact Report for a proposed
Anderson Springs Wastewater Collection Project. Anderson Springs is located
approximately 4.5 miles northwest of Middletown. The proposed Anderson Springs
service area consists of approximately 0.75 square miles and serves a year-round
population of 460 and a seasonal population of 1,100. This proposal would be to convey
wastewater via a pipeline to the Middletown Wastewater Treatment Plant.
The recommended alternative for collection and conveyance of the wastewater from the
Anderson Springs community would be through the use of a Septic Tank Effluent Pump
(STEP) system. STEP systems are a hybrid of an on-site treatment and disposal system
and a community gravity sewer. STEP systems continue to use on-site septic tanks to
remove grit and solids and provide initial biological treatment for the wastewater. Rather
than use on-site disposal of the septic tank effluent, however, each septic tank is fitted
with a small horsepower effluent pump.
Septic tank effluent would be pumped through a 2-inch effluent lateral to 4-inch effluent
mains, then to the Middletown Wastewater Treatment Plant.
4.8 Konocti Harbor Resort
Konocti Harbor Resort owns and operates its own wastewater treatment system for its
120 acre site. The resort can provide accommodations for up to 1,500 people. The
facilities also include a 5,000-seat amphitheater and 1000-person concert hall. This
facility is temporarily closed.
44 Lake County Special Districts Administration, “Current Operations by Utility Area”, August 2010
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5 FINANCIAL REVIEW OF LACOSAN
Each year a preliminary budget for LACOSAN is prepared and submitted to the
LACOSAN Board of Directors by the Lake County Special Districts Department. This
budget is based on historical data and projected needs. The final budget is normally
adopted around September 1st.
After budget approval by the Board of Directors, if there is any increase for health and
safety reasons the Special District Department makes a request for the funds at a
regular agenda. Small changes to the budget require approval of the County
Administrator. The Lake County Auditor’s office compiles budget data for Lake County
Special Districts Administration which manages the LACOSAN.
Financing mechanisms are an area of concern when local governments finance large
capital facilities and depend upon fees and (or) taxes for financing. Appendix B in part
provides an enumeration of legislation and voters initiatives to modify the method by
which public facilities may be financed. A potential issue of having major problems with
an individual plant is that the willingness of the landowners to pay for the huge jump in
cost may be exceeded. This has happened in other counties and resulted in the County
taxpayer’s or other ratepayers being forced to cover the cost. Unfortunately, there is not
much LACOSAN can do about a voter initiative to lower wastewater treatment costs and
fees except to have adequate reserves to cover major capital expenses.
In the event a Cease and Desist Order, the Order is placed on the entire system and in
the event any fine is levied that fine will be charged to a specific system (for example,
the Southeast Regional System) and is charged to that system under “operations and
compliance.” Likewise, if a spill occurs in the Northwest Regional System, for example,
associated costs will be charged to that system under “operations and compliance.”
5.1 Budgets
5.1.1 Budget Unit 8350
LACOSAN (Clearlake, Lower Lake, North Lakeport to Paradise Cove) 2010-2011 budget
of $5,682,976 includes revenue estimates of $5,158,299 and carry-over of $524,677.45
The prior year’s budget (2009-10) was $6,471,196.00.
According to the 2010-2011 budget, “Significant appropriations include general system
maintenance, utilities, and professional services.” The 2010-2011 budget was decreased
from $6,471,196 to $5,682,976 for Budget Unit 8350.46
45 Lake County, 2010-2011 Budget
46 Lake County, 2009-2010 and 2010-2011 Budget MISSING FOOTNOTE Numbers “67” and “68”
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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1.2. Budget Unit 8353 (Middletown)
Wastewater collection for the Middletown area has a 2010-2011 budget of $194,211
(including estimated revenue of $149,269 and carry-over of $40,142).47 The 2010-2011
budget was decreased by $138,022 (from $332,233 in the prior year).48
According to the 2009-2010 budget, “Notable appropriations include maintenance of the
collection system and equipment and utilities. 49
Using the adopted 2010-2011 budget, LACOSAN’s estimated operations budget is
$5,877,187. Major expenses are salaries and wages, employee benefits, professional
services, utilities, and general maintenance and equipment. Income generated comes
from permit and hook-up fees, and interest. Administration for LACOSAN is in an
Internal Service Fund for the Special District’s Department along with several other
dependent districts managed by the department.
The County performs many direct in-house services as well as indirect services billed
through the County’s A-87 process. The District’s operational budget and revenues have
decreased over the past few years due to weakening economic conditions (County of
Lake, Final Budget 2010-2011).
LACOSAN has a CIP Reserves fund for capital projects. The District budgets for
improvements as required in accordance with its approved facilities plans for its
treatment and collection and outfall facilities. LACOSAN’s main revenue sources are
new connection fees, and monthly service fees; LACOSAN receives no share of the
County’s property tax revenues. Outstanding debts are through the State Revolving
Loan Fund (SRF).
5.2 Sewer System Rates
5.2.1 Rate Classes
The Foresight Study Tables are found in Appendix A at the end of this report. The
Foresight Consulting Study makes the following comments regarding the sewer
customer classes:50
Sewer customer classifications are far more detailed than necessary and
individual districts are unnecessarily dissimilar; we have recommended
changes that bring those classifications more in line with industry
standards and those of other communities in the region. The
recommended customer classes are also more consistent with the cost-
of-service principles embodied in this overall rate study.
Figure 2-1 in the Study provides an example from the Southeast District’s current 18
classes compared to the recommended 4 customer classes shown in Figure 2-2 of the
study.
47 Lake County, 2010-2011 Budget
48 Lake County 2008-2009 Budget, p145.
49 Lake County, 2007-2008 Budget, p123.
50 Foresight Consulting, “Water and Sewer Rate Study Report”, page 5, July 22, 2008.
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As shown in Figure 2-1 of the study, the rate coding and the classifications are unique
and functional. Unfortunately, they are quite different from district to district. This makes
consistency in rate calculations, administration, customer service, and accounting
practices more difficult and often confusing to customers and staff. Additionally, it is not
clear how these classifications are applied to individual customers, but previously rates
were based solely on flow and charged as a flat rate. Figure 2-2 of the study shows the
recommended 4 customer classes. These would be applied to all sewer districts, thereby
creating uniformity between the districts.
5.2.2 Sewer Service Rate Increases
The sewer rate cost-of-service methodology used by the Foresight Consulting Study is
explained as follows:51
This rate study followed AWWA and industry standard cost-of-service
methodology for sewer rates. This analysis essentially determines the
revenue needed from rates and how those revenues should be recovered
from customers.
The revenue requirements are functionalized by wastewater loading
parameters (flow, BOD and TSS) and divided by the total units of each to
calculate the unit costs. Those unit costs are then allocated to each
customer class based on their total flow, BOD and TSS, thereby
determining the revenue requirements for each customer class.
Non-residential customer rates for sewer customers are determined using
the State guidelines for wastewater strength (i.e., flow, BOD and TSS)
and determining the percentage of residential strength wastewater for
each of these constituents. Using that percentage, the costs for each
parameter (flow, BOD, TSS) are calculated for an equivalent dwelling unit
(EDU) of flow. By totaling these three costs, the unit cost per EDU for
each customer class is calculated. Each non-residential customer should
then be charges a rate based on the number of EDU’s of flow times that
unit cost.
A Foresight Study table shows projected rate increases52 which are substantial. The
Financial Plan shows that the rate increases will be larger in the first part of the five-year
plan and by the end of the five-year plan (2013) the rate increases will be no higher than
14%. A comparison of the current and the new bi-monthly residential sewer rates is also
shown in the Study.53 Even though the percentage increase in the sewer rates sounds
large the actual monetary amounts are not that high compared to other jurisdictions. In
fact, the residential rates are lower than those many other northern California
communities.
The Foresight Consulting Study explains these rate increases as follows:
51 Foresight Consulting, “Water and Sewer Rate Study Report”, page 15, July 22, 2008.
52 Foresight Consulting, “Water and Sewer Rate Study Report”, page 17, July 22, 2008
53 Foresight Consulting, “Water and Sewer Rate Study Report”, page 20, July 22, 2008
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To a large extent, these rate increases reflect the need to begin funding
new debt service payments and meeting the bond coverage requirements
imposed by new revenue bonds.54 Also, as mentioned above, the
individual rates do not necessarily have the same percentage increases
as the overall rate increases due to the cost-of-service and financial plan
adjustments.
5.3 Sewer System Revenue Requirements
A table from the Foresight Consulting Study compares the sewer system budgets with
the revenue requirements.55 The study finds that the revenue requirements will increase
substantially because the study recommends a bond to pay for improvements and the
budgets will then include debt service which could exceed 15% of the budget in some
years.
For each system, the revenue requirements exceed the budget. The total budget costs
and needs mean little to the average home-owner. The typical rate-payer only wants to
know what it will cost him. However, if the wastewater collection and treatment system is
not operated correctly, the costs will be much higher. Therefore, it is important to provide
adequate revenue to operate the systems in a timely manner.
The Foresight Study explains how these revenue requirements were determined as
follows:56
The sewer district projections include the cost of new debt service to fund
capital improvement costs. The sewer systems have a total debt service
of $0.82 million in FY’09-10 but, due to the revenue requirements of $6.6
million, this is only 12.5% of annual revenue requirements.
These projections are Foresight’s best estimate of the future revenue
needed from sewer rates based on currently available information. In
particular, they reflect the expected costs of the capital improvements to
remedy existing deficiencies and fund regulatory-driven improvements.
The District’s staff and engineering consultants are the primary source of
the capital cost estimates, while district budgets are the basis for
operating costs.
A Foresight Study table summarizes the difference between current revenue, revenue
requirements and the revenue generated by the new rates for sewer service.57
According to the study, even with a substantial rate increase the revenue would not meet
the revenue requirements.
54 Coverage requirements are a ratio of year-end reserve funds to the annual debt service imposed by bond covenants for
the purpose of providing security to bond holders that the borrowing agencies will be able to make their annual debt
service payments and repay the bond holders.
55 Foresight Consulting, “Water and Sewer Rate Study Report”, page 8, July 22, 2008
56 Foresight Consulting, “Water and Sewer Rate Study Report”, page 9, July 22, 2008
57 Foresight Consulting, “Water and Sewer Rate Study Report”, page 10, July 22, 2008
Adopted November 17, 2010
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The Foresight Consulting Study notes that:
First year rate increases range from 12% to 50% for sewer districts.
Because of the factors and the multi-year outlook considered in the
financial plan, the revenue from new rates will be different from the
revenue requirements, but over the five-year planning period the rate
increases and revenue they generate will meet the financial needs of the
districts.58
The Foresight Study shows the projected revenue from the recommend rate increases
by sewer system in a table.59 With the most connections, the Southeast System needs
the largest revenue.
5.4 Sewer System Capital Costs
A summary of sewer system capital improvement costs is shown in the Foresight
Study.60 The Study divides the costs between rehabilitation and plant improvements for
each system for each year. The Foresight Consulting Study explains the table as
follows:61
The capital costs shown include sewer system master plan (SSMP)
projects to correct collection system deficiencies, but by far the most
significant costs are treatment-related improvements. The Special
Districts Administration agrees with Foresight’s recommendation that the
best approach for funding capital improvements is to take out two long-
term loans,62 with each district paying its own share of the costs of the
resulting annual debt service. This approach minimizes the issuance and
financing costs of securing this funding and, more importantly, provides
money upfront for necessary projects. Otherwise, rate increases would be
prohibitively high or there would not be sufficient funding to do the
necessary improvements.
The Foresight Study includes two tables which summarize the financed CIP costs and
the annual debt service payments. One table recommends that 100% of the sewer
district capital projects are funded by new debt.63 The second table shows that for the
Southeast Plant the debt services costs could be over $2,000,000 in a five year period.
The percent of new residential sewer rates used for Capital Improvement Costs is shown
in a separate table.64 For the Southeast Regional System 26% of the rate revenue would
be used for capital improvement costs.
LACOSAN recently completed a Proposition 218 process in the Collection System in the
Clearlake area whereby fees would be increased to capitalize a proposed $5.4 million
58 Foresight Consulting, “Water and Sewer Rate Study Report”, page 10, July 22, 2008
59 Foresight Consulting, “Water and Sewer Rate Study Report”, page 17, July 22, 2008
60 Foresight Consulting, “Water and Sewer Rate Study Report”, page 11, July 22, 2008
61 Foresight Consulting, “Water and Sewer Rate Study Report”, page 11, July 22, 2008
62 This funding will most likely be in the form of revenue bonds. Based on discussions with Northcross, Hill & Ach,
Financial Advisors, we have assumed one issuance for water and one for sewer districts. A 30-year repayment period and
a 5.5% interest rate were used in calculating estimated annual debt service payments.
63 Foresight Consulting, “Water and Sewer Rate Study Report”, page 12, July 22, 2008
64 Foresight Consulting, “Water and Sewer Rate Study Report”, page 18, July 22, 2008
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project to solve a chronic infill and infiltration problem. This includes a 40% increase and
implements approximately one half of the Capital Improvements Plan for the Southeast
system. The recommended increase by the Foresight Study would have required a
doubling of rates.
5.5 Sewer System Capacity Fees
5.5.1 System Capacity Fees Introduction
The Foresight Consulting Study explains the Capacity Fees as follows:65
Capacity fees66 are typically calculated with the intent of removing any
financial benefit new customers might receive when they connect to the
sewer services. That is, they should be required to “buy-in” to their fair
share of capital facilities paid for by previous customers, as well as pay
for any new facilities required to serve them, which are referred to as
“incremental” costs. Once they are on equal footing from a financial
perspective, all customers (new and existing) should then pay the same
service charges.
The current sewer “cap fees” or system capacity fees (SCFs) managed
by the Special Districts Administration were set based on fees published
in annual state-wide survey reports prepared by the State Water
Resources Control Board and the Black & Veatch Corporation. These
data were also compared to fees charged within other jurisdictions in the
County and rural areas of northern California.
5.5.2 System Capacity Fees Calculation
The Foresight Consulting Study explains the determination of capacity fees as follows:67
Calculating system capacity fees includes evaluating both the buy-in and
incremental capital facilities for each district. The buy-in related assets
would include all existing assets with remaining useful life from an
accounting standpoint; that is, those not fully depreciated. The
incremental portion of the fee includes all planned capital improvements,
especially those specifically required to serve new development.
The amount of remaining capacity in the water and sewer systems of
each district is generally the total capacity in equivalent dwelling units (or
EDU’s) minus the amount of capacity currently used by existing
customers. System capacity fees are then calculated by dividing the value
of the existing and planned capital assets allocated to future customers
(or “growth”) by the total capacity available to new customers.
The value of outstanding principal on debt and grant-funded facilities
must be excluded from the SCF calculations as explained below:
65 Foresight Consulting, “Water and Sewer Rate Study Report”, page 21, July 22, 2008
66 The Special Districts Administration and water/sewer systems use the term “cap fees” when discussing what are more
accurately call “system capacity fees”. This fee should be distinguished from “connection fees” that refer to the costs of
installing a service connection, also referred to as “hook-up fees.”
67 Foresight Consulting, “Water and Sewer Rate Study Report”, page 22, July 22, 2008
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Outstanding Principal on Debt – Including outstanding principal would
likely result in double-charging new customers if this cost was included in
the SCF and then also included as debt service payments in the service
charges.68
Grant Funds – Including grant-funded facilities is not appropriate since
grant funds were essentially free to the district; in other words, SCF’s
cannot include costs the district did not incur to serve future customers.
5.5.3 System Capacity Fees Summary
The Sewer System Capacity Fees developed by Foresight Consulting show that the fee
for the Southeast area could be lowered69 but the fees adopted by the Lake County
Board of Supervisors acting as the Board of Directors for the Lake County Sanitation
District in Ordinance No. 2924 were increased due to problems with the system. In April
2010 the LACOSAN Board of Directors approved a system Capacity Fee for the
Southeast Collection system. The total fee for a new sewer connection in the Southeast
area is nearly $10,000 per SFD equivalent.70
5.6 LACOSAN Area Financial Background
5.6.1 Northwest Regional Sewer System
The table prepared by Foresight Consulting summarizes budget projects for the
Northwest Regional Sewer System along with the net revenue requirements, which must
be funded through rates each year in order to achieve a balanced budget. (As a result of
the financial plan, actual rate revenue in any year may be less than net revenue
requirements for that year.)71
Two tables, prepared by Foresight Consulting, summarize the financial plan and project
rate increases for the Northwest Regional Sewer System. (The rate increases shown are
the percent increase in current rate revenue, not individual rates, which are determined
through the cost-of-service rate analysis.)72 The rate increases are of greater interest to
the individual rate payer.
Financial plans take a longer-term perspective in selecting rate increases, and attempt to
smooth out the increases, meet necessary reserve fund levels, and satisfy the coverage
ratio requirements of new debt issued. The figure prepared by Foresight Consulting
shows that the total year-end fund balance for the Northwest Regional Sewer System73
would decrease only slightly with rate increases but would decrease substantially (by
over two million dollars) with no rate increases.
68 However, including outstanding principal is acceptable if repayment is clearly from future SCF revenues.
69 Foresight Consulting, “Water and Sewer Rate Study Report”, page 23, July 22, 2008
70 Lake County Sanitation District, Ordinance 2924 An Ordinance Amending Section 706B of The Sewer Use Ordinance
Pertaining to Inflationary Adjustment Determined by the Engineering News Record-Construction Cost Index, April 13,
2010.
71 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 51, July 22, 2008
72 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, pages 51 and 52, July 22, 2008
73 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 52, July 22, 2008
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The table prepared by Foresight Consulting summarizes the cost allocation process
whereby revenue requirements are allocated to functional categories, and totaled as the
costs allocated to both fixed and variable costs.74 This is a technical division of costs
which is of interest to the Special Districts Administration but of less importance to the
average rate payer.
A table, prepared by Foresight Consulting, shows the calculation of unit costs for the
function categories, including treatment parameters (flow, BOD, TSS). These unit costs
are applied to each customer class in order to determine equitable rates.75 The
treatment parameters have the greatest costs.
The tables prepared by Foresight Consulting show how these unit costs are applied to
each customer class, resulting in the total revenue requirement for each customer class.
Non-residential customer rates for sewer customers are determined using the State
Guidelines for wastewater strength (i.e., flow BOD and TSS) and determining the
percentage of residential strength wastewater for each of these constituents. Using that
percentage, the costs for each parameter (flow, BOD, TSS) are calculated for an
equivalent dwelling unit (EDU) of flow. By totaling these three costs, the fixed rate per
EDU for each customer class is calculated. Each non-residential customer should then
be charged a rate based on the number of EDUs of flow times that fixed rate.76
Septage is the partially treated waste stored in a septic tank. It generally consists of all
the household wastes that are disposed of through a home’s plumbing system that do
not drain out into the soil or are converted to gases by the special bacteria in the septic
tank. Because of the higher treatment costs, septage waste charges should be based on
the quantity of waste, such as per 1,000 gallons and should assume the septage is
delivered to the treatment plant by a pumper truck. (An informal survey of septage
charges revealed a wide range of charges by the disposal site, with charges ranging
from less than $10.00 per 1,000 gallons to over $380 per 1,000 gallons. For example, El
Dorado County charges $300 per pump for septage disposal.)
This makes it difficult to apply these charges to septage dumping stations, such as RV
parks or campgrounds, which usually don’t track numbers of customers or the quantity of
waste. (It is also difficult for the Special Districts Administration to track and monitor
campgrounds or RV parks that may offer septage dumping services. This is an area
where future field verification and further analysis of septage customers may be helpful.
The minimum bi-monthly charge of $25.96 shown in the table is a minimum charge that
only includes one 1,000 gallon discharge to the wastewater treatment plant. Additional
discharges would be billed at the volume rate shown in the table.77
Additional figures compare the current and the new residential monthly bills and show
the projected rates for the Northwest Area System for 2008-09 through 2012-13.78
5.6.2 Southeast Regional Sewer System
74 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 53, July 22, 2008
75 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 53, July 22, 2008
76 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 53, July 22, 2008
77 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 58, July 22, 2008
78 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 58, July 22, 2008
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LACOSAN MSR Resolution 2010-0012
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Foresight Consulting summarize budget projections for the Southeast Regional Sewer
System along with the net revenue requirements, which must be funded through rates
each year in order to achieve a balanced budget.79 The proposed budgets allow 22% for
collection, 30.7% for treatment, 20.4% for disposal, and 20.9% for administration.
Additional tables summarize the financial plan and the projected rate increases for the
Southeast Regional Sewer System.80 The required annual increases range from 3%
increase to 7.6% increase. The Sewer Reserve funds are divided into the Operations
Fund (Cash), Capital Improvement Fund (CIP), and the Repair and Replacement Fund
(R&R).
Financial plans take a longer-term perspective in selecting rate increases, and attempt to
smooth out the increases, meet necessary reserve fund levels, and satisfy the coverage
ration requirements of new debt issued. The figure showing the total year-end fund
balance for the Southeast Regional System81 shows that with the rate increases the
balances would decline but at a much slower rate than if there were no rate increases.
A Foresight Consulting table summarizes the cost allocation process whereby revenue
requirements are allocated to functional categories such as collection, treatment,
disposal, and administration, and then totals the costs allocated to fixed and variable
expenses.82
An additional table shows the calculation of unit costs for the function categories,
including treatment parameters (flow, BOD and TSS). These unit costs are applied to
each customer class in order to determine equitable rates.83 The purpose of these tables
is to determine fair rates for industrial and commercial customers that may have unique
wastewater flows. Two larger tables show how these unit costs are applied to each
customer class, resulting in the total revenue requirement for each customer class.84
Non-residential customer rates for sewer customers are determined using the State
Guidelines for wastewater strength (i.e., flow BOD and TSS) and determining the
percentage of residential strength wastewater for each of these constituents. Using that
percentage, the costs for each parameter (flow, BOD, TSS) are calculated for an
equivalent dwelling unit (EDU) of flow. By totaling these three costs, the fixed rate per
EDU for each customer class is calculated. Each non-residential customer should then
be charged a rate based on the number of EDUs of flow times that fixed rate.
Septage is the partially treated waste stored in a septic tank. It generally consists of all
the household wastes that are disposed of through a home’s plumbing system that do
not drain out into the soil or are converted to gases by the special bacteria in the septic
tank. Because of the higher treatment costs, septage waste charges should be based on
the quantity of waste, such as per 1,000 gallons and should assume the septage is
delivered to the treatment plan by a pumper truck. (An informal survey of septage
79 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 42, July 22, 2008
80 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 42, July 22, 2008
81 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 43, July 22, 2008
82 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 44, July 22, 2008
83 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 44, July 22, 2008
84 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 44, July 22, 2008
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charges revealed a wide range of charges by the disposal site, with charges ranging
from less than $10.00 per 1,000 gallons to over $380 per 1,000 gallons. For example, El
Dorado County charges $300 per pump for septage disposal.)
This makes it difficult to apply these charges to septage dumping stations, such as RV
parks or campgrounds, which usually don’t track numbers of customers or the quantity of
waste. (It is also difficult for the Special Districts Administration to track and monitor
campgrounds or RV parks that may offer septage dumping services. This is an area
where future field verification and further analysis of septage customers may be helpful.
The bi-monthly charge of $33.41 shown in the table is a minimum charge that only
includes one 1,000 gallon discharge to the wastewater treatment plant. Additional
discharges would be billed at the volume rate of $29.95 per 1,000 gallons shown in the
table.85
A separate figure compares the current and new residential monthly bills, and a table
that shows the projected rates for the Southeast System for 2008-09 through 2012-13.86
The current revenue falls far short of the costs.
5.6.3 Middletown Regional Sewer System
A table prepared by Foresight Consulting summarizes budget projections for the
Middletown Sanitation District along with the net revenue requirements, which must be
funded through rates each year in order to achieve a balanced budget.87 The Budget is
expected to decrease initially and then increase each year to a total of $368,595 in
2012-2013.
Two additional tables prepared by Foresight Consulting summarize the financial plan
and the project rate increases for the Middletown Sanitation District.88 The tables show
that there is no way that the Middletown Sanitation District can meet the revenue
requirements with the current revenues.
Financial plans take a longer-term perspective in selecting rate increases, and attempt to
smooth out the increases, meet necessary reserve fund levels, and satisfy the coverage
ratio requirements of new debt issued. A figure prepared by Foresight Consulting shows
the total year-end fund balance for the Middletown Sanitation District.89 The fund
balance would be severely in debt without the rate increases.
A table prepared by Foresight Consulting summarizes the cost allocation process
whereby revenue requirements are allocated to functional categories, and then totals the
costs allocated to fixed and variable expenses for the Middletown Sanitation District.90
Collection is the most expensive part of the cost, followed by treatment, administration,
and disposal.
A table prepared by Foresight Consulting shows the calculation of unit costs for the
function categories, including treatment parameters (flow, BOD and TSS). These unit
85 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 49, July 22, 2008
86 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 49, July 22, 2008
87 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 73, July 22, 2008
88 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 73, July 22, 2008
89 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 74, July 22, 2008
90 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 75, July 22, 2008
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costs are applied to each customer class in order to determine equitable rates for the
Middletown Sanitation District.91 This is particularly important for determining the rates
for commercial and industrial users. Larger tables prepared by Foresight Consulting
show how these unit costs are applied to each customer class, resulting in the total
revenue requirement for each customer class.92 Businesses are listed by type with the
appropriate fee for each.
A figure prepared by Foresight Consulting compares the current and new residential
monthly bills, and a larger table shows the projected rates for the Middletown District for
2008-09 through 2012-13.93 The fees did not cover the costs at the time of the Study.
The final table prepared by Foresight Consulting is a summary of the recommended
sewer rates for the Middletown Regional System.
91 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 75, July 22, 2008
92 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 75, July 22, 2008
93 Foresight Consulting, “Water and Sewer Rate Study Report Appendix ”, page 80, July 22, 2008
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6 POPULATION AND CONSISTENCY WITH ADOPTED PLANS
6.1 Lake County Population
Permanent population in Lake County in 2010 was 64,053.94 The number of housing
units in 2005 was estimated to be 34,645.95 Population characteristics throughout the
study area (Lake County) are substantially affected by seasonal variations, distinct user
groups and the abundance of second homes. According to the 2000 census there are
8,884 unoccupied units representing a 26.30% vacancy rate, which is consistent with
2010 figures from the State Department of Finance showing a vacancy rate of 26.32%.
In order to plan for peak demand periods, part-time residents must to be factored into
population projections. The seasonal day user also creates a significant portion of peak
demand on urban services, including wastewater collection and treatment.
Assuming the same number of persons per household (2.387) for seasonal as well as
year-around units, a total additional population of 20,418 persons could potentially reside
in Lake County on a seasonal basis. This figure does not include population increases
resulting from the hotel or resort industry.
Therefore, a seasonal population in Lake County could be as much as 78,727 especially
in light of the fact the Census is conducted on April 1st, which is not considered the peak
season in Lake County. Population projections for wastewater system design may come
from County and City General Plans; however it is not uncommon for Facility Master
Plans to be based upon unique assumptions. Based on the assumptions and according
to the State Department of Finance (Interim Population Projections, Report P1, June
2001), Lake County is forecast to have over a 50% increase in population during the
period 2000-2020.
California Department of Finance Population Projections for Lake County with and
without occupancy of seasonal units
Year 2000 2005 2010 2015 2020
Lake County 59,100 69,200 77,620 84,400 93,000
Lake County
Peak 79,518 89,618 98,038 104,818 113,418
(Assumes that the existing number of vacant units will be seasonally occupied.)
Source: California Department of Finance, 2001.
To illustrate the effect part-time residents have on the study area, projections are
provided for the County with and without inclusion of part-time residents. With inclusion
of part-time residents, population and commensurate demand on wastewater collection,
treatment and disposal infrastructure increases approximately 26% above the figures
used by the State Department of Finance.
Using the State Department of Finance figures without accounting for vacant units,
population projections for Lake County would reflect an annual +2.76% change in
population between the years 2000 and 2010 and an annual +1.83% change in
94www.fedstats.gov/
95www.fedstats.gov/
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population between the years 2010 and 2020. Assuming this amount is realized, the
population of Lake County will increase by 31.3% between 2000 and 2010 and by
another 19.8% between 2010 and 2020. It should be taken into account that areas of the
County are growing at different rates.
6.2 Consistency with Adopted Plans
Land use and future development in the Municipal Service Review study area is
governed by several adopted plans: the Lake County General Plan, the City of
Clearlake General Plan, and the City of Lakeport General Plan. Relevant policies and
land use designations for each plan are summarized below.
6.2.1 Lake County General Plan
A. Lake County General Plan-Services
The Lake County General Plan 2008 includes the following Goal and Policies regarding
Wastewater:96
Goal PFS-3: To ensure the provision of adequate wastewater collection and
treatment within the County.
Policy PFS-3.1: Adequate On-site Disposal Standards
The County shall develop, periodically review, and enforce adequate standards for
septic tanks to protect water quality and public health. Use of individual septic systems
shall be discouraged for larger residential and commercial developments and also for
smaller developments where a public wastewater treatment facility is reasonable
available. Larger developments should only occur where public wastewater treatment
facilities with adequate capacity are available to serve the development.
Policy PFS-3.2: Maintenance of Septic Systems
The County should promote and support programs to educate homeowners on the care
and maintenance of septic systems.
Policy PFS-3.3: Alternative Rural Wastewater Systems
The County should investigate alternative rural wastewater systems before investing in a
costly conventional sewage system. For individual homes, such systems include
elevated leach fields, sand filtration systems, evapotranspiration beds, osmosis units
and holding tanks. In addition, composting toilets should be considered by the County for
some situations, if determined to be appropriate and found not to pose a health risk. For
clusters of homes, alternative systems include communal septic tank/leach field
systems, package treatment plants, lagoon systems, and land treatment.
Policy PFS-3.4: Developer Requirements
The County shall require that developers meet all County wastewater requirements for
adequate collection, treatment, and disposal prior to breaking ground for construction.
96 Lake County General Plan 2008, page 5-5 to 5-6.
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Policy PFS3.5: Water Conservation
The County shall minimize wastewater flows through water conservation efforts.
Consideration should be given to allow use of gray water for landscape irrigation.
Policy PFS-3.6: Sanitary Sewer Connections
The County will promote the development of sewer systems and connection of land uses
to sanitary sewer systems where (a) failing septic tanks, leachfield, and package
systems constitute a threat to water quality and public health that cannot be remedied
otherwise; or (b) future development will exceed acceptable standard for septic tanks
(such as density or flow of effluent into the groundwater).
Policy PFS-3.7: Reduce Density/Intensity near Sewer Plants
The County shall reduce the potential for future land use conflicts near sewer treatment
facilities by minimizing development potential on surrounding parcels through zoning and
land use designations that limit residential density and/or commercial intensity.
Proposals for land division adjacent to sewer treatment facilities should not be approved
unless large parcels can be provided with adequate, on-site buffers.
B. Lake County General Plan-Communities
The General Plan calls for more detailed plans to be prepared for the County’s
unincorporated communities. These plans take the form of area plans, which can then
be adopted as part of the General Plan.
Within community regions the interrelationship of land use and circulation and target
areas for housing rehabilitation or preservation are encouraged. Community areas are to
be used to promote compact growth where development can be served most efficiently
and effectively with necessary urban services and facilities.
Community areas are defined by Community Boundaries generally based upon the
following criteria:
• Existing development patterns reflecting higher intensity and density of use and need
to provide land area to accommodate a balanced pattern of development in the
County;
• Existing and potential service areas for major services such as public sewer and
water;
• Location of major topographic patterns and features;
• Major transportation corridors and travel patterns;
• Ability to provide and maintain appropriate transitions at Community Boundaries.
The levels of service and provision of public facilities in community areas is to be based
upon improving the capacity of public facilities to serve higher levels of development
directed to defined communities.
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The levels of service and provision of public facilities in rural areas is to be based on
limiting the amount of development to ensure that adequate facilities are available.
Planning for future public facilities and services in community areas assumes public
wastewater collection and treatment systems, while rural regions may rely on public or
private on-site wastewater collection and treatment systems.
The land use pattern reflected on the Lake County General Plan Land Use Map is
correlated with the future provision of public facilities to ensure adequate service of land
uses, based upon the service criteria and levels of service for the identified areas.
All General Plan amendments must show that the public facilities and services
necessary to serve the proposed development are also correlated with the future
provision of facilities and services according to the same criteria.
To enable public services to be provided with the greatest degree of efficiency and cost-
effectiveness, development within community areas is encouraged to be at the
maximum density under the respective land use designations shown on the General
Plan Land Use maps, consistent with environmental, infrastructure, and other site
constraints.
6.2.2 City of Clearlake General Plan
The City of Clearlake General Plan was adopted in 1983 and amended several times.
The most significant amendment in relation to this wastewater service review was in
1988 when the City added goals, objectives, policies, and implementation measures on
a variety of items including “Solid and Liquid Waste Disposal Facilities.” When the City
was incorporated, much of its territory was not served by a wastewater collection and
treatment system.
A. City of Clearlake-Population
According to Federal 2000 Census data, Clearlake is well below Lake County averages
for median household, family, and per capita income levels. Current Federal Census
information indicates that there are 13,142 people residing in the City of Clearlake with a
total of 5,532 households.
Median income for Clearlake households is approximately $19,863 (less than the County
average at $29,627) with family income a bit higher at $25,504 (less than the County
average of $35,818). Per capita income for the city is $12,538 (lower than the County
average at $16,825), which means approximately 28.6% of the population of Clearlake is
below the poverty line (higher than the County average at 17.6%).
The City of Clearlake Parks Master Plan has projected that the population of the City will
be 17,216 by the year 2010. Much of the City’s growth can be attributed to lake-
generated recreation and tourism.
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B. City of Clearlake-Services
The original City of Clearlake General Plan contained Policy 2.09 that said: “All new
commercial and industrial development should be connected to sewers or meet City
standards for septic systems. All new multi-unit residential development and single-
family residential subdivisions on lots less than 12,000 square feet should be connected
to sewers.”
This City of Clearlake General Plan contained language that promoted improvement of
the water quality of Clear Lake by monitoring pollution generated by a variety of sources
including septic systems. In 1988, the City adopted Resolution 88-51 that repealed
original Policy 2.09 and added the following new policies regarding sewers and septic
systems respectively:
The city shall continue to support the expansion of the sanitary sewer system
within the City and to require the connection of new development to the system
when such service is within a reasonable distance, except as otherwise permitted
by other adopted regulations and policies of the Lake County Environmental
Health Department and Lake County Special Districts. All new multi-unit
residential development and single-family residential subdivisions on lots of less
than 15,000 square feet shall be connected to sewers.
The city shall continue to cooperate with the County to ensure that on-site
sewage disposal facilities are regulated, designed and maintained so as to
protect the public’s health and safety.
6.2.3 City of Lakeport General Plan
The City of Lakeport was incorporated as a General Law City in 1888. The most recent
General Plan was prepared in 200897 and approved by City Council March 2009.
A. City of Lakeport-Population
The following table from the City of Lakeport General Plan 2025 shows the projected
population growth for the City:98
For the three-year period 2000-2002, 26 new residential building permits were issued in
the City; in 1990-1992 a total of 630 were issued. Most of the building permit activity
during 2000-2002 involved miscellaneous residential and commercial permits not
involving new construction.
97 City of Lakeport, General Plan 2025.
98 City of Lakeport, General Plan Update 2025, Urban Boundary Element, Page III-4.
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Municipal services in the City are affected by an influx of visitors seeking recreation
opportunities, especially in the summer. This is an annual occurrence, and is taken into
account by the City in its planning activities.
B. City of Lakeport-Sphere of Influence
Regarding annexations and Lakeport’s Sphere of Influence, the General Plan 2025
includes an Urban Boundary Element to provide guidance related to future annexation of
land from the City’s Sphere of Influence. The Plan includes the following Annexation
Priorities:99
The City should pursue annexations based on the following priority
system:
1. Commercial and industrial land along South Main Street and Soda Bay
Road.
2. Land designated as Specific Plan Area
3. Land within the southern, southwestern and western Sphere of
Influence.
The area north of the new Sphere of Influence line is already part of a joint City/County
sewer district served by LACOSAN, thereby reducing the need to annex to Lakeport in
order to obtain municipal services.
Although the County has jurisdiction over the unincorporated areas within the City’s
Sphere of Influence, the policies and land use designations established by the City’s
General Plan for this area become effective at the time a request for annexation to the
City is made. Close coordination between City and county planning policies is required
to promote harmonious annexation and development of this area.
6.2.4 Master Plans
Each of the wastewater treatment plant master plans has individual population estimates
and analysis of different growth scenarios. The analysis is used to make
recommendations for improvements to the treatment plants. The master plans agree that
Lake County will continue to experience a significant amount of population growth and
that most of the growth will be permanent residents rather than seasonal residents.
99 City of Lakeport, General Plan 2025, Page III-5.
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7 WASTEWATER TREATMENT MUNICIPAL SERVICE REVIEW
The Cortese-Knox-Hertzberg Act as amended identifies five factors to be addressed in a
Municipal Service Review. For each factor, information is gathered and analyzed, with
determinations prepared for LAFCO’s consideration. Lake LAFCO is responsible for
determining that an agency is reasonably capable of providing needed resources and
basic infrastructure to serve areas within its boundaries and later in the Sphere of
Influence. It is important that such determinations of infrastructure availability occur
when revisions to a Sphere of Influence and annexations occur.
In this Municipal Service Review, LAFCO will do the following:
1) Evaluate the present and long-term infrastructure demands and
resources available to LACOSAN.
2) Analyze whether resources and services are or will be available at
needed levels.
3) Determine whether orderly maintenance and expansion of such
resources and services are planned to occur in line with
increasing demands.
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7.1 Growth and Population Projections
Purpose: To evaluate service needs based on existing and anticipated growth
patterns and population projections.
7.1.1 Lake County Growth and Population
Permanent population in Lake County (as estimated by the California Department of
Finance) was 64,053 on July 1, 2010. There were 34,645 housing units in Lake County
on July 1, 2010 with a vacancy rate of 26.32% according to the State Department of
Finance City/County Population and Housing Estimates.
7.1.2 MSR Determinations on Growth and Population for LACOSAN
1-1) The LACOSAN service areas were experiencing a high growth rate until the
economic downturn. Between 2009 and 2010 the population remained the same
with no growth, compared to previous years where the Lake County Population
growth rate was among the highest in California.
1-2) Growth projections in Lake County project a 2020 population of 77,912. The
continuation of the economic downturn will lower state population estimates since
those estimates are based on pre-recession data.
1-3) The Southeast Regional Wastewater System and the Northwest Regional
Wastewater System will be upgraded to reflect the Master Plans and growth
trends beyond 2020.
1-4) A new facilities plan for the Middletown Wastewater Treatment Plant (MWTP)
(operating at 85% of capacity) was completed in August 2010, and will be the
basis for improvements. It is expected that rate increases will be needed and
connections from Anderson Springs will contribute to wastewater flows at the
MWTP.
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7.2 Capacity and Infrastructure
Purpose: To evaluate the infrastructure needs and deficiencies in terms of
supply, capacity, condition of facilities and service quality.
7.2.1 Infrastructure Background
As described in the preceding sections, the wastewater treatment and collection service
provider in the Municipal Service Review study area is the Lake County Sanitation
District (LACOSAN). The Hidden Valley Lakes CSD (HVLCSD), Clearlake Oaks County
Water District, and Kelseyville County Waterworks District #3 sewer services (the latter
of which is currently being upgraded) are reviewed in separate reports.
The City of Lakeport Municipal Sewer District (CLMSD) provides wastewater collection
and treatment service within the Lakeport City Limits. Some parcels north of the City
limits have flow to the Lake County Sanitation District (LACOSAN) system, and some
parcels in the LACOSAN service area south of town are accepted in the City’s system.
These flows come from the Land’s End/Holiday Cove area and portions of the Big Valley
Rancheria on Rancheria Drive that are served by Sewer Assessment District 9-1.
City of Lakeport wastewater flows from 16th Street to the northern City Limits are
received and treated at the Northwest Regional Wastewater Treatment Plant (NRWTP).
The NRWTP has resolved one Cease and Desist Order (CDO) from the RWQCB
relating to storage capacity. A second CDO is in effect which addresses improvement
needs in the collection system but does not contain a restriction on new service
connections.
As the lead agency, Lake County’s planning documents are particularly important for
smart and efficient planning of wastewater infrastructure for LACOSAN.
LACOSAN is operated by the Lake County Special Districts Administration which
manages three LACOSAN wastewater treatment plants along with the Kelseyville
Waterworks District #3 wastewater treatment plant. All plants operate at a secondary
level of treatment. The Northwest, Southeast, and Middletown Wastewater Treatment
facilities transport treated effluent to the Geysers for injection.
LACOSAN has a preventive maintenance program including systematic inspection,
cleaning, exercising, lubricating, adjusting, and testing components of the wastewater
collection and treatment system. Various routine maintenance activities include pump
station testing, smoke testing, inspection/cleaning easements, manhole monitoring, root
control, mainline cleaning, valve exercising, wet well cleaning, auxiliary generators,
alarm testing, by-pass equipment testing, and grease and odor control.
Corrective maintenance involves the immediate repair of system defects as their
presence becomes known. Corrective maintenance scheduling is dependent upon the
severity of the defect.
Customer-related issues and issues threatening the environment are of the highest
priority and are scheduled immediately. Since repair of system failures cannot, by
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definition, be scheduled, planning for corrective maintenance involves budgeting
adequate funds for system repair, based on historical costs.
Repairs and upgrades to collection infrastructure within LACOSAN are performed on an
as needed basis and as required by the Regional Water Quality Control Board.
LACOSAN has recently made improvements to its wastewater collection and treatment
system (Northwest System), including the replacement of Pump Stations No. 1 and No.
2, a new force main from Pump No. 2 to the treatment plant (capacity of 6.4 mgd), and
installation of the Supervisory Control and Data Acquisition system (SCADA) which
covers all 22 pump stations in the collection system.
The force main improvement between Pump Station No. 1 and the treatment plant
replaced the original force main that was associated with several failures during 2002.
7.2.2 MSR Determinations on Infrastructure for LACOSAN
2-1) LACOSAN has Master Facility Plans for each wastewater treatment plant.
2-2) Master Plans for the Northwest and Southeast collection systems have been
updated and are being implemented.
2-3) The LACOSAN wastewater collection and treatment system has historically
experienced numerous problems with inundation (I&I) during periods of high
groundwater or high Clear Lake water levels.
2-4) The inflow and infiltration (I&I) into the collection system results in substantial
increases in flow to the treatment plant and disposal systems and has lead to the
issuance of a Cease and Desist Order and a Cleanup and Abatement Order from
the Regional Water Quality Control Board.
2-5) LACOSAN should continue to submit Semi-Annual Progress Reports to the
RWQCB regarding improvements to their collection system to reduce I&I flows.
2-6) LACOSAN has completed (and is in the process of updating) wastewater
collection system Master Plans to determine overall integrity and define the
nature and extent of I&I during dry and wet weather as required by various
Regional Water Quality Control Board orders.
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2-7) The LACOSAN collection systems (Northwest Regional Wastewater System,
Southeast Regional Wastewater System, and Middletown Wastewater Treatment
Facility) appear to be marginally adequate to effectively transfer the wastewater
flow from the approximate 26,985100 residents in the District’s boundaries to the
wastewater treatment plants.
2-8) Treated effluent is disposed of primarily through the Geysers effluent pipeline by
injection into the Southeast Geysers steamfield. Existing spray irrigation systems
will be used for effluent disposal by irrigating fodder crops when required as a
backup.
2-9) In the event the District fails to comply with the provisions of Cease and Desist
Order No. R5-2005-0007, the matter may be referred to the Attorney General for
judicial enforcement or the Regional Water Quality Control Board may issue a
penalty for administrative civil liability to LACOSAN.
2-10) Seasonal variations, distinct user groups, and the abundance of second homes
significantly influence available capacity in the LACOSAN collection and
treatment system. LACOSAN can usually expect a slight jump in average dry
weather flow during the summer vacation months. Master plans and facility
improvement plans have considered the effects of seasonal variations.
2-11) Treatment capacity and collection system needs could increase as conversion
from secondary (vacation) to primary (year-round) residences occurs.
2-12) LACOSAN should update facility plans for the treatment plants every five years
and should continue to maintain and update the capital improvement program
budget annually.
2-13) Total existing connections and connection capacity (based on current
information) is as follows: The Northwest RWTP has 4,670 existing
connections101 and a total service capacity of 9,534 connections. The Southwest
RWTP has 6,707 existing connections102 and has a total service capacity of
13,405 connections.
2-14) The Middletown WTP has 733 existing connections103 and has a total service
capacity of 933 connections. LACOSAN is in the initial stages of increasing
service capacity of the Middletown WTP including a collection system in the
Anderson Springs area.
100 Lake County Special Districts Administration, “Current Operations by Utility Area”, 8/6/2010.
101 Lake County Special Districts Administration, “Current Operations by Utility Area”, 8/6/2010.
102 Lake County Special Districts Administration, “Current Operations by Utility Area”, 8/6/2010.
103 Lake County Special Districts Administration, “Current Operations by Utility Area”, 8/6/2010.
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7.3 Financial Ability of LACOSAN
Purpose: To evaluate factors that affect the financing of needed improvements
and to identify practices or opportunities that may help eliminate unnecessary
costs without decreasing service levels
LAFCO should consider the ability of a district to pay for improvements or services
associated with annexed sites. This planning can begin at the SOI stage by identifying
infrastructure and maintenance needs associated with future annexation and
development, and identifying limitations on financing such improvements.
7.3.1 Financial Background
In the past, LACOSAN has been held liable for numerous raw sewage spills and sewer
overflows from the Southeast and Northwest Regional collection systems, resulting in
direct discharges to Clear Lake and its tributaries (possibly including Molesworth Creek),
in violation of RWQCB Waste Discharge Requirements (WDRs) (California Regional
Water Quality Control Board, Notice of Violation, August 21, 2003).
Failure to meet compliance with WDRs has resulted in enforcement action by the
RWQCB in the form of civil liabilities totaling $150,000 across years 2002-2003 (Cease
and Desist Order No. R5-2003-0040). The Cleanup and Abatement Order for the
Southeast WTP also has the potential for fines if the conditions are not met.
District personnel have been cross-trained to perform most duties in their respective
utility areas. This provides for greater flexibility in both routine and emergency situations.
Maintenance personnel receive training consistent with the California Water Pollution
Control Association (CWPCA) guidelines for wastewater collection system workers.
All LACOSAN maintenance personnel currently hold the proper certification to run a
wastewater system of this size and nature, including Treatment Plant Operators
Certification (state), and Grade I, II, and III licenses.
LACOSAN has also developed a Water Conservation Ordinance originally adopted in
1995, and amended in 2004 (Ordinance 2291 adding Middletown, Land’s End, Holiday
Cove, Corinthian Bay, and South Lakeport) and 2005 (Ordinance 2291 adding
Kelseyville). This Conservation Ordinance outlines an effective strategy to implement
low water-use fixtures to aid in reducing water demand throughout the LACOSAN
system.
LACOSAN has historically required a unique capacity analysis when accepting new
connections serving 4 or more units. In the past, LACOSAN has required a capacity
analysis by a third party engineer who independently determines any impacts to the
respective treatment facility and recommends mitigation measures. The developer has
historically been required to pay the cost of the engineer’s analysis.
LACOSAN is now moving away from this practice, and is in the process of developing
Hydraulic Models for their four treatment plants, with the Southeast Regional Treatment
Plant Hydraulic Model already being used. LACOSAN still has a policy to have the
developer pay the cost of running the Hydraulic Model, and to have the developer pay to
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implement the mitigation measures, therefore passing 100% of the cost of the analysis
onto the developer.
The fees imposed by LACOSAN for new connections and monthly service are based on
a Consumer Price Index (CPI). LACOSAN uses a CPI to establish the rate structure to
ensure that rates bear a reasonable nexus to the cost of providing wastewater collection
and treatment services to the residents of Lake County. The Foresight Study was
specific on needed rate increases. For each water and wastewater system, one has to
review a series of tables and graphs to arrive at the total revenue needed to fully
implement a 5-year Capital Improvement Program (CIP). In the current economic
climate, it is nearly impossible to completely implement each system's CIP since full
implementation of the Foresight Study would have required doubling of the rates.
The Special Districts Administration in Lake County bills every sewer district in advance,
and mails user-fee statements every two months.
The Foresight Study has been noted in this report and will help LACOSAN to achieve a
fair rate structure which will allow the necessary improvements to the system.
7.3.2 MSR Determinations on Financial Ability for LACOSAN
3-1) Based on the latest available information and notwithstanding unforeseen events,
capacity expansion for LACOSAN facilities will be sufficiently funded through a
combination of reserves, grants, loans, and system capacity fees.
3-2) Excepting the uncertainties of the funding authorization process, there appear to
be no institutional or financial obstacles to funding necessary expansion of the
respective systems.
3-3) Costs associated with new development are paid by private developers and are
documented in the System Capacity Fees section of the Foresight Study.
3-4) Costs for infrastructure benefiting each facility are paid though service and
connection fees.
3-5) Costs for emergency repairs are covered by the districts’ operation and
maintenance funds.
3-6) Operational costs for LACOSAN are covered by ratepayers based on the type of
use.
3-7) LACOSAN should continue the policy that new development pays the entire cost
of development of new infrastructure, including connection, expansion, and
inspection fees to cover the costs for LACOSAN.
3-8) The budget process for LACOSAN provides a public forum for cutting
unnecessary costs and placing resources where most needed.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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3-9) LACOSAN should avoid violations of WDR requirements which carry costly
penalties and fines.
3-10) Sludge (biosolids) are transported from the Northwest and Middletown Plants to
the Southeast WTP for land application as required by the State Permit.
3-11) By keeping LACOSAN rates (monthly service fees, new connection fees) in line
with the cost of providing county-wide wastewater collection and treatment
services, the District is preventing excess costs to future customers.
3-12) The District is effectively reducing costs to the ratepayers in the long term by
reducing the likelihood of encountering major system defects and catastrophic
system failures.
3-13) LACOSAN and SDA will continue to explore potential efficiencies that could be
achieved through shared facilities and other cost-sharing arrangements. Ideas
that could be explored include shared corporation yards, equipment, and office
space.
3-14) The cost of the employees cannot be significantly reduced.
3-15) Rates and fees for services have been established in accordance with the
provisions in State Law.
3-16) LACOSAN’s revenue sources include new connection fees and monthly user
fees.
3-17) LACOSAN does not collect or benefit from any property tax revenue and
receives no property tax revenue from the AB-8 allocation.
3-18) LACOSAN uses the Consumer Price Index (CPI) to annually adjust rates for its
Northwest, Southeast, and Middletown treatment systems using the methodology
included in the rate study. The district uses the Engineering News Record,
Construction Cost Index to adjust system capacity fees for its Southeast system.
Other systems will use this method in the future. All customers have an annual
CPI adjustment made each February based on the previous year's inflation. If the
number is "zero" or negative, the adjustment will be zero.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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7.4 Shared Facilities
Purpose: To evaluate the opportunities for a jurisdiction to share facilities and
resources to develop more efficient service delivery systems.
7.4.1 Shared Facilities Background
The Lake County Sanitation District (LACOSAN) is headquartered in Lakeport at the
Lake County Special Districts Administration. Lake County Special Districts
Administration is a County department funded by several dependent districts (districts
whose board of directors is the Board of Supervisors). These districts provide water and
wastewater services and vary in size, including several County Service Areas and the
Kelseyville County Waterworks District #3. The District with the largest budget and most
assets is LACOSAN.
The Special Districts Administration is able to share resources with other County
departments for a variety of administrative, legal, and financial services. The district has
40 position allocations including administrative, financial, supervisory, and technical
staff.
In addition to being a part of the Lake County Special Districts Administration,
LACOSAN and various other partners are involved in an effluent recycling project at the
Geysers geothermal steamfield which includes collecting wastewater and transporting it
via a pipeline to the Northern California Power Association and Calpine geothermal
power facilities.
LACOSAN follows the Lake County Emergency Contingency Plan, which involves a
large number of local agencies located on the shores of Clear Lake and in the Lake
County area in sewage spill emergency response planning.
Due to topography, the location of wastewater collection agencies, and the manner in
which wastewater collection systems are designed, sharing facilities such as lift stations
and wastewater collection infrastructure between service providers is difficult but is
practiced as applicable. Sharing items such as specialized equipment, heavy machinery
and vehicles is routine in the Lake County area.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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7.4.2 MSR Determinations on Shared Facilities for LACOSAN
4-1) The Lake County Sanitation District (LACOSAN) is headquartered in Lakeport at
the Lake County Special Districts Administration Office.
4-2) LACOSAN has a wastewater reuse program that involves conveying wastewater
effluent via a 50-mile pipeline from its Wastewater Treatment plants to
geothermal power plants in the Geysers.
4-3) A portion of the domestic sewage from the City of Lakeport (approximately 800
SFDs) is pumped to the Northwest WTP. In exchange, Lands End/South
Lakeport wastewater flows (250 SFDs) go to the Lakeport Treatment Plant
(CLMSD).
4-4) Additional opportunities for shared facilities between LACOSAN and individual
municipal service providers are unlikely, since LACOSAN has expanded as far
as the County operational limits and topography will allow.
4-5) Sharing facilities such as specialized equipment (i.e., specialized cleaning
equipment, vehicles, etc.) is done in the Lake County area between LACOSAN
and the other local wastewater collection and treatment providers as much as
possible.
Adopted November 17, 2010
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7.5 Government Structure and Accountability
Purpose: To consider the advantages and disadvantages of various government
structures that could provide public services, to evaluate the management
capabilities of the organization and to evaluate the accessibility and levels of
public participation associated with the agency’s decision-making and
management processes.
LAFCO may consider the agency’s record of local accountability in its management of
community affairs as a measure of the ability to provide adequate services to the Sphere
of Influence and proposed annexation areas.
7.5.1 Government Structure and Accountability Background
Based on the most recent budget information it appears that the provision of wastewater
collection and treatment is managed in a cost-effective, efficient manner meeting the
needs of the community. LACOSAN has accounting and finance departments, personnel
regulations and ordinances. The Special Districts Administration has up-to-date audits in
compliance with auditing standards for all Lake County Sanitation (LACOSAN) service
and billing areas.
LACOSAN is governed by the five-member Lake County Board of Supervisors acting as
the Board of Directors for the District. The District Board is responsible for setting policy
and general administrative procedures for LACOSAN. The District has 40 employees. A
sanitary district may provide garbage collection and disposal, wastewater treatment and
disposal, water reclamation, and water recycling and distribution.
LACOSAN has developed and maintains numerous customer-oriented programs,
including a mission statement (see below), various links on the Lake County website, a
District Newsletter (that can be accessed on the website), and regular in-house safety
and management training. LACOSAN staff-members are very well trained and possess
the proper certifications for operating wastewater collection and treatment systems. The
agencies are responsive to complaints and respond promptly to problems. If not during
office hours, staff is available by pager and cell phone. Utility area staff are available 24
hours per day, 7 days per week.
LACOSAN is Lake County’s public wastewater collection and treatment agency. County
General Plan policies dictate that LACOSAN should coordinate programs of expansion
with the County’s proposed development patterns, so that they may provide these
services more efficiently, and therefore avoid excess expense. LACOSAN has grown to
include most of Lake County, and is not slated to expand any more. LACOSAN has,
from time-to-time established Zones of Benefit under certain circumstances for various
communities throughout the County.
LACOSAN follows the Lake County Mission Statement that reads as follows:
The County of Lake provides proactive public policy, superior public service, and
courteous public contact, responsible exercise of authority and sound
management of resources to enhance the quality of life for our citizens, now and
in the future.
Adopted November 17, 2010
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The Lake County Board of Supervisors adjourns to meet as the Lake County Sanitation
District Board of Directors. Regularly scheduled Board meetings are held on the first
Tuesday of each month at the County Courthouse Board Chambers located in Lakeport.
Agendas for Board Meetings are posted and notices provided consistent with public
meeting requirements.
Lake County Special Districts Administration has developed a website found on the
home page of the County of Lake website. This website offers information related to
LACOSAN and Lake County wastewater treatment in general. This County website is a
fine example of a government website, offering a wide variety of information that the
average citizen can easily access.
7.5.2 MSR Determinations on Government Structure for LACOSAN
5-1) LACOSAN provides wastewater collection and treatment services, as described
in detail in previous sections.
5-2) In most areas of the County, the Lake County Board of Supervisors has the
authority to create Assessment Districts without LAFCO review.
5-3) LACOSAN functions well and is viable as a public County sanitation agency.
5-4) Merging or consolidating with other service providers or public agencies in the
area would not be practicable or efficient.
5-5) The District has developed Facility Plans for its three wastewater treatment
plants, and is in the process of preparing comprehensive Master Facilities Plans
covering the collection systems of all four of the treatment plants.
5-6) Having one agency performing both collection and treatment services for a large
portion of Lake County has resulted in an overall reduced cost of providing these
services, with centralized maintenance and administration.
5-7) Centralized billing helps allocate costs based on zones of benefit, and
efficiencies in maintenance personnel costs are realized.
5-8) LACOSAN has organizational charts that outline efficient service delivery
functions. Personnel in various divisions are cross-trained to provide continuous
service delivery.
5-9) LACOSAN has developed a Capital Improvements Plan for its wastewater
treatment systems. Such a Plan will help significantly with funding infrastructure
repairs and upgrades.
5-10) LACOSAN has been subject to regulatory action (including Cease and Desist
Orders, a Cleanup and Abatement Order and an Executive Officer issued
Administrative Civil Liability) over the last five to ten years.
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5-11) To meet the legal requirements LACOSAN has made improvements to its
wastewater collection system, including replacement of pump stations,
installation of new force mains, and replacement of oxidation ditches with aerated
lagoons (Cease and Desist Order No. R5-2003-0040).
5-12) While there is significant attendance by the general public at most Board of
Supervisors meetings there is not much discussion and testimony regarding most
items related to LACOSAN. The Board should schedule several meetings per
year to examine the overall program and direction for LACOSAN in addition to
the business items required.
5-13) LACOSAN complies with necessary regulations (i.e., the Brown Act) and has
regularly scheduled meetings to which the public is invited.
5-14) Lake County maintains relationships with the local media and LACOSAN
administration is accessible to ratepayers and the public.
5-15) LACOSAN budgets and rate changes are adopted at noticed public hearings to
which the public is invited.
5-16) LACOSAN has made excellent use of its link to the Lake County website to foster
public relations and participation and to information citizens on the District’s
activities.
5-17) The LACOSAN website contains information regarding Board meeting times and
locations, agendas and rates, water conservation tips, and specific information
about LACOSAN’s four treatment plants. The website also includes a District
Newsletter.
5-18) The Internet is a relatively low-cost yet powerful method of involving the general
public/customers/ratepayers in agency affairs. Greater dissemination of
information can lead to greater interest in attending Board meetings and
participating in elections. It also allows the public, some of whom are not
physically able to attend Board meetings, to follow District activities remotely
from their home or business.
5-19) The website posts LACOSAN budget and fee information that is easily
accessible to the public
5-20) The LACOSAN website offers links with information regarding smart water use,
various methods to reduce water use throughout the home, and other water
conservation tips. This site also contains an abundance of information about
smart fat, oil, and grease (FOG) handling tips, as improper disposal of these
household/commercial items has resulted in grease blockages causing raw
sewage spills in the past.
Adopted November 17, 2010
LACOSAN MSR Resolution 2010-0012
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Appendix A Foresight Study Tables
Current vs. New Bi-Monthly Residential Sewer Rates (FY'08-09)
Lake County Special Districts
Current Bi-monthly Charges Projected New Bi-Mo. Resid. Rates
District Basic Charge Rate/Add'l. % Incr. (a) Basic Charge Fixed Rate Total
Southeast $42.58 $42.58 18.0% $3.46 $60.97 $64.44
Northwest $44.20 $44.20 12.0% $3.87 $64.61 $68.49
Kelseyville $40.00 $40.00 30.0% $3.82 $44.95 $48.77
Corinthian Bay $24.62 $24.62 6.0% $3.82 $40.46 $44.28
Middletown $32.60 $32.60 20.0% $5.08 $39.09 $44.18
South Lakeport/LE $67.38 $67.38 4.0% $9.35 $50.12 $59.47
a. % increase of total district rate revenue, not the residential rates shown here.
Summary - Projected Net Revenue Requirements by Sewer System
Lake County Special Districts
Projected Revenue Requirements (a)
Sewer System Budget 2008-2009 2009-2010 2010-2011 2011-2012 2012-2013
Southeast $2,845,742 $2,931,358 $3,231,317 $3,474,990 $3,625,969 $3,783,477
Northwest $2,089,490 $2,165,987 $2,399,865 $2,587,142 $2,698,136 $2,813,890
Kelseyville $226,675 $355,362 $421,844 $466,055 $476,634 $487,074
Corinthian Bay $30,143 $33,815 $46,973 $55,594 $56,660 $57,686
Middletown $414,356 $287,858 $325,226 $351,079 $359,372 $368,595
South Lakeport/L.E. $143,451 $132,385 $165,582 $179,879 $184,048 $188,177
Total Revenue $5,749,857 $5,906,765 $6,590,807 $7,114,739 $7,400,819 $7,698,899
New Debt Service as a % of Total 7.0% 12.5% 15.1% 14.6% 14.0%
a. Revenues are from Appendix Tables SB-SE1 through SB-SL1.
Summary - Sewer Revenue Reqt's. & Rate Revenue by System (FY'08-09)
Lake County Special Districts
(1) (2) (3) (4)
FY'08-09 Revenue - Revenue % Rate
District Revenue Reqt's. Current Rates New Rates Increase (a)
Southeast $2,931,358 $1,787,000 $2,108,660 18.0%
Northwest $2,165,987 $1,547,000 $1,732,640 12.0%
Kelseyville $355,362 $212,900 $276,770 30.0%
Corinthian Bay $33,815 $19,500 $29,250 50.0%
Middletown $287,858 $125,000 $150,000 20.0%
South Lakeport/L.E. $132,385 $100,000 $112,000 12.0%
Total Revenue $5,906,765 $3,791,400 $4,409,320 16.3%
a. Increase from "Revenue - Current Rates" to "Revenue from New Rates." From the financial plans for each System.
b. Percent change from "FY'08-09 Revenue Requirements" to the "Revenue from New Rates."
Adopted November 17, 2010
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Projected Revenue from Recommended Sewer Rate by Sewer System
Lake County Special Districts
Projected Revenue from Rate Increases (a)
Sewer System 2008-2009 2009-2010 2010-2011 2011-2012 2012-2013
Southeast $2,108,660 $2,488,219 $2,936,098 $3,347,152 $3,547,981
Northwest $1,732,640 $1,940,557 $2,134,612 $2,348,074 $2,582,881
Kelseyville $276,770 $359,801 $467,741 $467,741 $467,741
Corinthian Bay $29,250 $42,413 $59,378 $59,378 $59,378
Middletown $150,000 $172,500 $198,375 $222,180 $244,398
South Lakeport/L.E. $112,000 $125,440 $143,002 $163,022 $185,845
Total Revenue $4,409,320 $5,128,929 $5,939,206 $6,607,546 $7,088,224
% Year-to-Year Increase 18.3% 16.3% 15.8% 11.3% 7.3%
a. Revenues are from the financial plans for each district shown in the Appendix.
Summary of Sewer System CIP Costs (FY'08-09 through FY'12-13)
Lake County Special Districts
Projected CIP Costs ($2008) (a)
2008-09 2009-10 2010-11 2011-12 2012-13 Total
Southeast
SSMP & Other Rehab. $130,000 $130,000 $130,000 $130,000 $130,000 $650,000
Plant Upgrades $1,141,000 $1,141,000 $1,141,000 $1,141,000 $1,141,000 $5,705,000
Total $1,271,000 $1,271,000 $1,271,000 $1,271,000 $1,271,000 $6,355,000
Northwest
SSMP & Other Rehab. $80,000 $80,000 $80,000 $80,000 $80,000 $400,000
Plant Upgrades $960,000 $960,000 $960,000 $960,000 $960,000 $4,800,000
Total $1,040,000 $1,040,000 $1,040,000 $1,040,000 $1,040,000 $5,200,000
Kelseyville
SSMP & Other Rehab. $56,800 $56,800 $56,800 $56,800 $56,800 $284,000
Plant Upgrades $392,900 $392,900 $392,900 $392,900 $392,900 $1,964,500
Total $449,700 $449,700 $449,700 $449,700 $449,700 $2,248,500
Corinthian Bay
SSMP & Other Rehab. $76,000 $76,000 $76,000 $76,000 $76,000 $380,000
Plant Upgrades $22,100 $22,100 $22,100 $22,100 $22,100 $110,500
Total $98,100 $98,100 $98,100 $98,100 $98,100 $490,500
Middletown
SSMP & Other Rehab. (b) $55,000 $55,000 $55,000 $55,000 $55,000 $275,000
Plant Upgrades $173,000 $173,000 $173,000 $173,000 $173,000 $865,000
Total $228,000 $228,000 $228,000 $228,000 $228,000 $1,140,000
South Lakeport/L.E.
SSMP & Other Rehab. $88,000 $88,000 $88,000 $88,000 $88,000 $440,000
Plant Upgrades $43,500 $43,500 $43,500 $43,500 $43,500 $217,500
Total $131,500 $131,500 $131,500 $131,500 $131,500 $657,500
a. Source: Special Districts Administration (4-29-08, 5-15-08 & 6-24-08), State Water Resources Control Board,
Regional Water Quality Control Board, CH2M Hill, and Water Works Engineers.
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Estimated Financed Portion of Recommended Sewer System CIP Costs
Lake County Special Districts
% Debt- % of Total Recommended Debt-Funded CIP Costs
Funded (a) Debt (b) 2008-09 2009-10 2010-11 2011-12 2012-13 Total
Southeast 100% 39.5% $1,271,000 $1,271,000 $1,271,000 $1,271,000 $1,271,000 $6,355,000
Northwest 100% 32.3% $1,040,000 $1,040,000 $1,040,000 $1,040,000 $1,040,000 $5,200,000
Kelseyville 100% 14.0% $449,700 $449,700 $449,700 $449,700 $449,700 $2,248,500
Corinthian Bay 100% 3.0% $98,100 $98,100 $98,100 $98,100 $98,100 $490,500
Middletown 100% 7.1% $228,000 $228,000 $228,000 $228,000 $228,000 $1,140,000
South Lakeport/L.E. 100% 4.1% $131,500 $131,500 $131,500 $131,500 $131,500 $657,500
Total 100.0% 100.0% $3,218,300 $3,218,300 $3,218,300 $3,218,300 $3,218,300 $16,091,500
a. Percent of each system's CIP costs that are funded by debt.
b. Each sewer system's CIP costs as a percent of the total debt for all systems.
Estimated Debt Service Payments for Recommended Sewer System CIP Costs
Lake County Special Districts
% Debt Projected Debt Service for Recommended Debt-Funded CIP Costs (b)
Funded (a) 2008-09 2009-10 2010-11 2011-12 2012-13 2013-14 Total
Southeast 39.5% $162,294 $324,587 $424,106 $425,741 $426,985 $427,838 $2,191,551
Northwest 32.3% $132,797 $265,595 $347,026 $348,364 $349,382 $350,080 $1,793,244
Kelseyville 14.0% $57,422 $114,844 $150,055 $150,634 $151,074 $151,376 $775,406
Corinthian Bay 3.0% $12,526 $25,053 $32,734 $32,860 $32,956 $33,022 $169,151
Middletown 7.1% $29,113 $58,226 $76,079 $76,372 $76,595 $76,748 $393,134
South Lakeport/L.E. 4.1% $16,791 $33,582 $43,879 $44,048 $44,177 $44,265 $226,742
Total - Debt Service (c) 100.0% $410,944 $821,887 $1,073,879 $1,078,019 $1,081,169 $1,083,329 $5,549,228
a. Represents each District's share of the total debt-funded CIP costs.
b. 30-year revenue bonds at 5.5%. Source: Northcross Hill & Ach analysis, March 17, 2008.
Percent of New Residential Sewer Rates
Used for CIP Costs (FY'08-09)
Lake County Special Districts
% of Rate Rev.
Sewer System Used for CIP (a)
Southeast Regional System 26%
Northwest Regional System 24%
Kelseyville CWWD #3 21%
Corinthian Bay (AD 9-2) 43%
Middletown Sanitation District 19%
S. Lakeport/Lands End 15%
a. Estimated debt service divided by financial plan rate revenue.
Sewer System Capacity Fees (SCF's)
Lake County - Special Districts
Costs Allocated Number of Calculated Current Difference:
to Growth New Dwelling SCF SCF Calculated SCF
District (2008 $'s) (a) Units (EDU's) (b) ($/EDU) (c) ($/EDU) less Current SCF
Southeast $9,260,439 2,517 $3,680 $4,488 ($808)
Northwest $9,643,662 836 $11,540 $4,488 $7,052
Kelseyville $9,659,260 552 $17,510 $4,388 $13,122
Middletown $4,400,032 257 $17,130 $4,488 $12,642
South Lakeport/L.E. $805,864 173 $4,660 NA NA
a. From Appendix Table SCF-S3.
b. Available growth capacity over the next 20 years. From Appendix Table SCF-S2. Source: Criterion Planners, Build-Out Analysis,
April 2006, revised to be consistent with the 2008 General Plan Update by Lake County Community Development Department.
c. TyCpoicsatsl sAinllogclea-tfeadm tioly G wraoswtethw daitveird eefdfl ubeyn Nt uchmabrearc toefr Niseticws Dfrwomel lrinagte U anniatsl.y SsiCs.F S ies ero Tuanbdlee dA tLo- Sth2e. nearest $10.
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Northwest
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Southeast
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Middletown
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APPENDIX B LOCAL GOVERNMENT ISSUES
1 Municipal Financial Constraints
Municipal service providers are constrained in their capacity to finance services by the inability to
increase property taxes, requirements for voter approval for new or increased taxes, and
requirements of voter approval for parcel taxes and assessments used to finance services.
Municipalities must obtain majority voter approval to increase or impose new general taxes and
two-thirds voter approval for special taxes.
Limitations on property tax rates and increases in taxable property values are financing
constraints. Property tax revenues are subject to a formulaic allocation and are vulnerable to
State budget needs. Agencies formed since the adoption of Proposition 13 in 1978 often lack
adequate financing.
1.1 California Local Government Finance Background
The financial ability of the cities to provide services is affected by financial constraints. City
service providers rely on a variety of revenue sources to fund city operating costs as follows:
• Property Taxes
• Benefit Assessments
• Special Taxes
• Proposition 172 Funds
• Other contributions from city general funds
As a funding source, property taxes are constrained by statewide initiatives that have been
passed by voters over the years and special legislation. Seven of these measures are explained
below:
A. Proposition 13
Proposition 13 (which California voters approved in 1978) has the following three impacts:
• It limits the ad valorem property tax rate.
• It limits growth of the assessed value of property.
• It requires voter approval of certain local taxes.
Generally, this measure fixes the ad valorem tax at one percent of the value at most recent sale;
except for taxes to repay certain voter approved bonded indebtedness. In response to the
adoption of Proposition 13, the Legislature enacted Assembly Bill 8 (AB 8) in 1979 to establish
property tax allocation formulas.
B. AB 8
AB 8 allocates property tax revenue to the local agencies within each tax rate area based on the
proportion each agency received during the three fiscal years preceding adoption of Proposition
13. This allocation formula benefits local agencies which had relatively high tax rates at the time
Proposition 13 was enacted (1978).
C. Proposition 98
Proposition 98, which California voters approved in 1988, requires the State to maintain a
minimum level of school funding. In 1992 and 1993, the Legislature began shifting billions of
local property taxes to schools in response to State budget deficits. Local property taxes were
diverted from local governments into the Educational Revenue Augmentation Fund (ERAF) and
transferred to school districts and community college districts to reduce the amount paid by the
State general fund. Local agencies throughout the State lost significant property tax revenue due
to this shift. Proposition 172 was enacted to help offset property tax revenue losses of cities and
counties that were shifted to the ERAF for schools in 1992.
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D. Proposition 172
Proposition 172, enacted in 1993, provides the revenue of a half-cent sales tax to counties and
cities for public safety purposes, including police, fire, district attorneys, corrections and
lifeguards. Proposition 172 also requires cities and counties to continue providing public safety
funding at or above the amount provided in FY 92-93.
E. Proposition 218
Proposition 218, which California voters approved in 1996, requires voter- or property owner-
approval of increased local taxes, assessments, and property-related fees. A two-thirds
affirmative vote is required to impose a Special Tax, for example, a tax for a specific purpose
such as a fire district special tax.
However, majority voter approval is required for imposing or increasing general taxes such as
business license or utility taxes, which can be used for any governmental purpose.
These requirements do not apply to user fees, development impact fees and Mello-Roos districts.
F. Mello-Roos Community Facilities Act
The Mello-Roos Community Facilities Act of 1982 allows any county, city, special district, school
district or joint powers authority to establish a Mello-Roos Community Facilities District (a “CFD”)
which allows for financing of public improvements and services.
The services and improvements that Mello-Roos CFDs can finance include streets, sewer
systems and other basic infrastructure, police protection, fire protection, ambulance services,
schools, parks, libraries, museums and other cultural facilities. By law, the CFD is also entitled to
recover expenses needed to form the CFD and administer the annual special taxes and bonded
debt.
A CFD is created by a sponsoring local government agency. The proposed district will include all
properties that will benefit from the improvements to be constructed or the services to be
provided. A CFD cannot be formed without a two-thirds majority vote of residents living within the
proposed boundaries. Or, if there are fewer than 12 residents, the vote is instead conducted of
current landowners.
In many cases, that may be a single owner or developer. Once approved, a Special Tax Lien is
placed against each property in the CFD. Property owners then pay a Special Tax each year. If
the project cost is high, municipal bonds will be sold by the CFD to provide the large amount of
money initially needed to build the improvements or fund the services.
The Special Tax cannot be directly based on the value of the property. Special Taxes instead are
based on mathematical formulas that take into account property characteristics such as use of
the property, square footage of the structure and lot size. The formula is defined at the time of
formation, and will include a maximum special tax amount and a percentage maximum annual
increase.
If bonds were issued by the CFD, special taxes will be charged annually until the bonds are paid
off in full. Often, after bonds are paid off, a CFD will continue to charge a reduced fee to maintain
the improvements.
G. Development Impact Fees
A county, cities, special districts, school districts, and private utilities may impose development
impact fees on new construction for purposes of defraying the cost of putting in place public
infrastructure and services to support new development.
To impose development impact fees, a jurisdiction must justify the fees as an offset to the impact
of future development on facilities. This usually requires a special financial study. The fees must
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be committed within five years to the projects for which they were collected, and the district, city
or county must keep separate funds for each development impact fee.
1.2 Financing Opportunities that Require Voter Approval
Financing opportunities that require voter approval include the following:
1) Special taxes such as parcel taxes
2) Increases in general taxes such as the following:
• Utility taxes
• Sales and use taxes
• Business license taxes
• Transient occupancy taxes
Communities may elect to form business improvement districts to finance supplemental services,
or Mello-Roos districts to finance development-related infrastructure extension. Agencies may
finance facilities with voter-approved (general obligation) bonded indebtedness.
1.3 Financing Opportunities that Do Not Require Voter Approval
Financing opportunities that do not require voter approval include imposition of or increases in
fees to more fully recover the costs of providing services, including user fees and Development
Impact Fees to recover the actual cost of services provided and infrastructure.
Development Impact Fees and user fees must be based on reasonable costs, and may be
imposed and increased without voter approval. Development Impact Fees may not be used to
subsidize operating costs.
Agencies may also finance many types of facility improvements through bond instruments that do
not require voter approval.
Water rates and rate structures are not subject to regulation by other agencies. Utility providers
may increase rates annually, and often do so. Generally, there is no voter approval requirement
for rate increases, although notification of utility users is required. Water providers must maintain
an enterprise fund for the respective utility separate from other funds, and may not use revenues
to finance unrelated governmental activities.
2 Public Management Standards
While public sector management standards do vary depending on the size and scope of an
organization, there are minimum standards. Well-managed organizations do the following eight
activities:
1) Evaluate employees annually.
2) Prepare a budget before the beginning of the fiscal year.
3) Conduct periodic financial audits to safeguard the public trust.
4) Maintain current financial records.
5) Periodically evaluate rates and fees.
6) Plan and budget for capital replacement needs.
7) Conduct advance planning for future growth.
8) Make best efforts to meet regulatory requirements.
Most of the professionally managed and staffed agencies implement many of these best
management practices. LAFCO encourages all local agencies to conduct timely financial record-
keeping for each city function and make financial information available to the public.
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3 Public Participation in Government
The Brown Act (California Government Code Section 54950 et seq.) is intended to insure that
public boards shall take their actions openly and that deliberations shall be conducted openly.
The Brown Act establishes requirements for the following:
• Open meetings
• Agendas that describe the business to be conducted at the meeting
• Notice for meetings
• Meaningful opportunity for the public to comment
Few exceptions for meeting in closed sessions and reports of items discussed in closed sessions.
According to California Government Section 54959
Each member of a legislative body who attends a meeting of that legislative body where action is
taken in violation of any provision of this chapter, and where the member intends to deprive the
public of information to which the member knows or has reason to know the public is entitled
under this chapter, is guilty of a misdemeanor.
Section 54960 states the following:
(a) The district attorney or any interested person may commence an action by mandamus,
injunction or declaratory relief for the purpose of stopping or preventing violations or threatened
violations of this chapter by members of the legislative body of a local agency or to determine the
applicability of this chapter to actions or threatened future action of the legislative body,...
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ABBREVIATIONS
AB Assembly Bill
AD Assessment District
ADWF Average Dry Weather Flows
AWWA American Water Works Association
AWWF Average Wet Weather Flows
BOD Biological Oxygen Demand
CDO Cease and Desist Order
CEQA California Environmental Quality Act
CIP Capital Improvement Program
CKH Act Cortese-Knox-Hertzberg Local Government Reorganization Act of 2000
CLMSD City of Lakeport Municipal Services District
CLOWD Clearlake Oaks County Water District
CPI Consumer Price Index
CSD County Service Area
CSD Community Service District
CVRWQCB Central Valley Regional Water Quality Control Board
CWPCA California Water Pollution Control Association
District LACOSAN
EPA Environmental Protection Agency (US)
FOG fat, oil and grease
FY Fiscal Year
gpd gallons per day
gpm gallons per minute
HVLCSD Hidden Valley Lake Community Services District
I&I Inflow and Infiltration
JOC Joint Operating Committee
KCWD Kelseyville County Waterworks District #3
LACOSAN Lake County Sanitation District
LAFCO Local Agency Formation Commission
LAIF Local Agency Investment Fund
LCEHD Lake County Environmental Health Department
mgd Million Gallons per Day
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MSR Municipal Service Review (LAFCO)
MW Mega-Watts
MWh mega-watt hours
NCPA Northern California Power Agency
NEPA National Environmental Policy Act
NPDES National Pollutant Discharge Elimination System
NW Northwest
NWRTP Northwest Regional Treatment Plant
O&M Operation and Maintenance
PDF peak day flow
pH A measure of acidity
PHF peak hour flow
PG&E Pacific Gas & Electric Company
PMF peak month flow
R&R Repair and Replacement Fund
RUE Residential Unit Equivalent
RWQCB Regional Water Quality Control Board (California)
SCADA Supervisory Control and Data Acquisition System
SCFs System Capacity Fees
SDA Special Districts Administration (Lake County)
SE Southeast
SEGEP Southeast Geysers Effluent Pipeline
SERTP Southeast Regional Treatment Plant
SFD Single-Family Dwelling Unit
SOI Sphere of Influence (LAFCO)
SRF State Revolving Loan Fund
SSMP Sewer System Master Plan
STEP Septic Tank Effluent Pump
TSS Total Suspended Solids
US United States
WDR Waste Discharge Requirement
WTP Wastewater Treatment Plant
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DEFINITIONS
Aquifer: An underground, water-bearing layer of earth, porous rock, sand, or gravel, through
which water can seep or be held in natural storage. Aquifers generally hold sufficient water to be
used as a water supply.
Average base flow (ABF): Flow in the sanitary sewer during dry-weather months, measured
when no appreciable rain is falling. Base flow consists of sanitary flow plus groundwater
infiltration.
Average dry-weather flow (ADWF): The 30-day rolling average wastewater flow from May
through October.
Average wet-weather flow (AWWF): The 30-day rolling average wastewater flow from
November through April.
Bond: An interest-bearing promise to pay a stipulated sum of money, with the principal amount
due on a specific date. Funds raised through the sale of bonds can be used for various public
purposes.
Capital Improvements Program (CIP): A program established by a Public Agency and reviewed
by the Governing Body which schedules permanent improvements, usually for a minimum of five
years in the future, to fit the projected fiscal capability of the City. The Program generally is
reviewed annually, for conformance to and consistency with the General Plan.
California Environmental Quality Act (CEQA): A State Law requiring State and local agencies
to regulate activities with consideration for environmental protection. If a proposed activity has the
potential for a significant adverse environmental impact, an environmental impact report (EIR)
must be prepared and certified as to its adequacy before taking action on the proposed project.
Community Facilities District: Under the Mello-Roos Community Facilities Act of 1982 (Section
53311, et seq.) a legislative body may create within its jurisdiction a special tax district that can
finance tax-exempt bonds for the planning, design, acquisition, construction, and/or operation of
public facilities, as well as public services for district residents. Special taxes levied solely within
the district are used to repay the bonds.
Community Services District (CSD): A geographic subarea of a county used for planning and
delivery of parks, recreation, and other human services based on an assessment of the service
needs of the population in that subarea. A CSD is a taxation district with independent
administration.
Crown (of the sewer): The upper portion of the sewer pipes.
Design flow: The selected flow condition for wastewater collection system design, determined by
adding corresponding peak sanitary flow and peak groundwater infiltration. This is also referred to
as peak dry-weather flow.
Design storm: An abstraction based on historical data that determines the amount of stormwater
inflow and rainfall-dependent infiltration.
Dry-weather flow: Wastewater flow monitored during the dry season, occurring May through
October which consists of sanitary flow and groundwater infiltration.
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Excessive infiltration and inflow: The quantities of infiltration inflow that can be economically
eliminated from a wastewater collection system by rehabilitation, as determined by a cost-
effective analysis.
Groundwater: Water under the earth’s surface, often confined to aquifers capable of supplying
wells and springs.
Groundwater infiltration: Infiltration that enters pipeline and manhole defects located below the
groundwater table. Groundwater infiltration is at a maximum during wet weather and might drop
to near zero in the dry months.
House connection sewer: A sewer, within the public street or right-of-way, proposed to connect
any parcel, lot, or part of a lot with a mainline sewer. This sewer has also been referred to as a
lower lateral.
House sewer: A sewer, wholly within private property, proposed to connect any building to a
house connection sewer. This sewer has also been referred to as an upper lateral.
Impact Fee: A fee, also called a development fee, levied on the developer of a project by a
county, or other public agency as compensation for otherwise-unmitigated impacts the project will
produce. California Government Code Section 66000, et seq., specifies that development fees
shall not exceed the estimated reasonable cost of providing the service for which the fee is
charged. To lawfully impose a development fee, the public agency must verify its method of
calculation and document proper restrictions on use of the fund.
Infiltration: The water entering a sewer system and service connections from the ground,
through such means as, but not limited to, defective pipes, pipe joints, connections, or manhole
walls. Infiltration does not include, and is distinguished from, inflow.
Infiltration and inflow (I&I): The collective term used to describe the extraneous flow in a
wastewater collection system from either rainfall-dependent infiltration and inflow or groundwater
infiltration.
Infiltration and inflow analysis: An engineering and, if appropriate, an economic analysis
demonstrating possible excessive or nonexcessive infiltration and inflow.
Inflow: The water discharged into a sewer system, including service connections, from such
sources as, but not limited to, roof leaders, cellar, yard and area drains, foundation drains, cooling
water discharges, drains from springs and swampy areas, maintenance hole covers, cross
connections from storm sewers and combined sewers, catch basins, storm sewers, surface
runoff, street wash waters, or drainage. Inflow does not include, and is distinguished from,
infiltration.
Infrastructure: Public services and facilities such as sewage-disposal systems, water-supply
systems, and other utility systems, schools and roads.
Invert: The lower interior portion of the sewer pipe. Also, the bottom portion of the manhole
structure used to convey wastewater from one pipe segment to another.
Local Agency Formation Commission (LAFCO): A five-or seven-member commission within
each county that reviews and evaluates all proposals for formation of special districts,
incorporation of cities, annexation to special districts or cities, consolidation of districts, and
merger of districts with cities. Each county’s LAFCO is empowered to approve, disapprove, or
conditionally approve such proposals. The LAFCO members generally include two county
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supervisors, two city council members, and one member representing the general public. Some
LAFCOs include two representatives of special districts.
Megawatt Hour (MWh): One thousand kilowatt-hours or an amount of electricity that would
supply the monthly power needs of 1,000 typical homes in the Western U.S. (This is a rounding
up to 8,760 kWh/year per home based on an average of 8,549 kWh used per household per year
[U.S. DOE EIA, 1997 annual per capita electricity consumption figures]).
Peak-day flow (PDF): The maximum daily flow occurring during the calendar. Typically occurs
during wet-weather events and can also be referred to as peak wet-weather flow.
Peak dry-weather flow (PDWF): Peak daily sanitary flow plus groundwater infiltration.
Peak hourly dry-weather flow (PHDWF): Peak hourly sanitary flow plus groundwater
infiltration.
Peak hourly wet-weather flow (PHWWF): Peak hourly wet-weather flow plus peak rainfall-
dependent infiltration and inflow from rainfall events. This value was estimated by multiplying the
peak wet-weather flow by a factor of 1.3.
Peak wet-weather flow (PWWF): Peak daily wet-weather flow plus peak rainfall-dependent
infiltration and inflow from rainfall events.
Peaking Factor: The ratio of peak hourly wet-weather flow to base flow.
Physical survey: An activity of the Sewer System Evaluation Survey. This activity involves
determining specific flow characteristics, groundwater levels, and physical condition of the sewer
system that had previously been determined to contain possibly excessive infiltration and inflow.
Preparatory cleaning: An activity of the Sewer System Evaluation Survey. This activity involves
adequate cleaning of sewer lines prior to inspection. These sewers were previously identified as
potential sections of excessive infiltration and inflow.
Rainfall-dependent infiltration (RDI): Rainfall runoff that indirectly enters a sewer system and
service connections during and shortly after a rainfall event through such sources as, but not
limited to, defective pipes, pipe joints, connections, and manholes.
Rainfall-dependent infiltration and inflow (RDI&I): Rainfall runoff from both infiltration and
inflow sources that enters the wastewater collection system during and shortly after a rain event.
RDI&I consists of stormwater inflow and rainfall-dependent infiltration.
Sanitary flow: Wastewater flow generated by residential, commercial, and industrial (including
institutional) users. It does not include infiltration and inflow.
Sanitary Sewer: A sanitary sewer system is comprised of pipes, pump stations, manholes, and
other facilities that convey untreated wastewater from the various sources around the County to
treatment facilities.104
Septic System: A sewage-treatment system that includes a settling tank through which liquid
sewage flows and in which solid sewage settles and is decomposed by bacteria in the absence of
oxygen. Septic systems are often used for individual-home waste disposal where an urban sewer
system is not available.
104 Lake County, General Plan 2008, Page 5-2.
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Service lateral: A sewer connecting a building or house to the mainline sewer.
Sewage: Sewage is the liquid waste from toilets, baths, showers, kitchens, etc. that is disposed
of via sewers. In many areas sewage also includes some liquid waste from industry and
commerce.
Sewage (or domestic wastewater) treatment: Sewage treatment is the process of removing
contaminants from sewage. It includes physical, chemical and biological processes to remove
physical, chemical and biological contaminants. Its objective is to produce a waste stream (or
treated effluent) and a solid waste or sludge also suitable for discharge or reuse back into the
environment. This material is often inadvertently contaminated with toxic organic and inorganic
compounds.
Sewer Information Maintenance and Management System (SIMMS): A computer program
that provides a means of tracking and organizing sewer maintenance schedules.
Sewer System Evaluation Survey: A systematic detailed examination of a sewer system that
determines for each defined source of infiltration and inflow a specific location, quantity of flow,
method of rehabilitation, and cost of rehabilitation versus cost of transportation and treatment.
The elements of this program include flow monitoring, manhole and building inspection, storm
sewer flooding, smoke testing, cleaning and internal inspection of the sanitary sewer system, and
identification of all sources of infiltration and inflow.
Sewer System Rehabilitation Program: The rehabilitation and repair work necessary for the
elimination of excessive infiltration and inflow. Elements considered in this program include
grouting of sewer joints and laterals, lining of sewer lines/laterals, re-laying of sewer lines/laterals,
grouting/replacement of manholes, and removal of direct connections such as roof leaders, sump
pumps, and catch basins.
Single-family dwelling (SFD) unit equivalent: A unit of measure equal to 210 gallons per day,
used to standardize the amount of wastewater generated by a single-family residence.
Sludge is the residual semi-solid material left from wastewater treatment processes. When fresh
sewage or wastewater is added to a settling tank, approximately 50% of the suspended solid
matter will settle out in about an hour and a half. This collection of solids is known as raw sludge
or primary solids and is said to be "fresh" before anaerobic processes become active. Once
anaerobic bacteria take over, the sludge will become putrescent in a short time and must be
removed from the sedimentation tank before this happens.
Sphere of Influence (SOI): The probable physical boundaries and service area of a local
agency, as determined by the Local Agency Formation Commission (LAFCO) of the county.
Stormwater inflow: Rainfall runoff that enters the wastewater collection system through direct
connections such as catch basins, downspouts, and area drains.
Surcharge: A condition occurring in sewers when flows exceeding the sewer’s capacity are
imposed on the system, causing the hydraulic grade line to rise above the sewer crown.
System Analysis Model: A computer program used to model a sanitary sewer system for
various flow conditions.
Terminal pump station (PS): A pump station that discharges into a force main that conveys flow
directly to the Wastewater Treatment Plant.
Urban: Of, relating to, characteristic of, or constituting a city. Urban areas are generally
characterized by moderate and higher density residential development (i.e., three or more
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dwelling units per acre), commercial development, and industrial development, and the
availability of public services required for that development, specifically central water and sewer
service, an extensive road network, public transit, and other such services (e.g., safety and
emergency response). Development not providing such services may be “non-urban” or “rural”.
CEQA defines “urbanized area” as an area that has a population density of at least 1,000 persons
per square mile (Public Resources Code Section 21080.14(b)).
Urban Services: Utilities (such as water, gas, electricity, and sewer) and public services (such as
police, fire protection, schools, parks, and recreation) provided to an urbanized or urbanizing
area.
Wastewater: Wastewater is sewage (either treated or untreated) from residential, commercial,
industrial, and institutional sources.105
Wastewater Collection System: The totality of the pipes, pump stations, manholes, and other
facilities that convey untreated wastewater from the various sources within the County.106
Wastewater flow: Total flow within the wastewater collection system, consisting of both sanitary
flow and infiltration and inflow.
Wet-weather flow: Flow monitored during the rainy season, occurring November through April.
Includes sanitary flow, groundwater infiltration, and rainfall-dependent infiltration and inflow.
105 Lake County, General Plan 2008, Page 5-2.
106 Lake County, General Plan 2008, Page 5-2.
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REFERENCES AND RESOURCES CONSULTED
California, General Plan Guidelines, 2003, Governor’s Office of Planning and Research
California Regional Water Quality Control Board – Central Valley Region, Board Order No. 96-
166, July 1996.
California Regional Water Quality Control Board – Central Valley Region, Board Order No. 97-
249, December 1997.
California Regional Water Quality Control Board – Central Valley Region, Board Order No. 99-
094, June 1999.
California Regional Water Quality Control Board – Central Valley Region, Board Order No. 5-01-
011, May 2001.
California Regional Water Quality Control Board – Central Valley Region, Cease and Desist
Order No. R5-2003-0040, March 2003.
California Regional Water Quality Control Board – Central Valley Region, Notice of Violation of
WDR Order No. 96-166, August 2003.
California Regional Water Quality Control Board—Central Valley Region, Cease and Desist Order
No. R5-2005-0007, February 2005.
California, State Department of Finance, Interim Population Projections, Report P1, June 2001.
City of Lakeport, General Plan 1992-2020, Lakeport Planning Department, 1992.
City of Lakeport, General Plan 2025, Approved 2009
Consumer Confidence Report CSA No. 13 – Kono Tayee Water System, June 2004.
Consumer Confidence Report CSA No. 6 - Finley Water System, June 2004.
County of Lake, Final Budget 2004-2005, Final Budget 2007-2008, Final Budget 2009-2010 and
2010-2011
County of Lake, General Plan Background Report, February 2003.
County of Lake, General Plan 2008.
County of Lake, Government Website, www.co.lake.ca.us
County of Lake, Lake County Plans/Ordinances/Maps compact disc, updated January 9, 2004.
County of Lake, Special Districts Administration, Draft Water & Wastewater Systems Mapbook,
August 2008.
County of Lake, Special Districts Administration handout, 2003.
County of Lake, Special Districts Administration Map, Criterion Planners and Engineers,
November 17, 2005.
County of Lake, Special District System Fees 2010.
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Lake County Special Districts Administration, “Current Operations by Utility Area,” August 6,
2010.
Lake County Special Districts, “Build-out Analysis of Lake County Water and Wastewater
Systems” Prepared by Criterion Planners, www.crit.com, April 2006
Dellinger, Mark and Allen, Eliot, The Geysers Pipeline Project, Geo-Heat Center Bulletin Vol. 18,
No. 1, last updated January 7, 2005, www.geoheat.oit.edu/bulletin/bull18-1/art37.htm
Federal Census Data, 2000, www.wikipedia.com
Foresight Consulting, “Water and Sewer Rate Study Report”, July 22, 2008.
http://en.wikipedia.org/wiki/Lake_County,_California, November 3, 2006
http://wikimediafoundation.org/wiki/Fundraising#Donation_methods September 19, 2006
http://www.buylakecountyrealestate.com/lake-county/demographics.asp
Lake County Sanitation District, Audit Information, June 30, 2004.
Lake County Sanitation District, “Middletown Wastewater Master Facilities Plan”, September
2005, CH2MHILL, 2525 Airpark Drive, Redding, CA 96001.
Lake County Sanitation District, “Northwest Regional Wastewater Treatment Plant Master Plan
December 2005, updated 2010, CH2MHILL,2525 Airpark Drive, Redding, CA 96001.
Lake County Sanitation District, “Southeast Regional Wastewater Treatment Plant Master Plan”,
December 2005, CH2MHILL, 2525 Airpark Drive, Redding, CA 96001.
Lake County Special Districts Administration, “Current Operations by Utility Area”, 10/5/2007.
Lake County Special Districts Administration, “Special District System Fees 2007”.
Lake County Special Districts Administration, “12-month Growth Table”, October 1, 2007
Lake LAFCO, Draft Sphere of Influence Study, John Benoit, June 1985.
www.fedstats.gov/
Persons Consulted
Dellinger, Mark, Special Districts Administrator, Lake County.
MUNICIPAL SERVICE REVIEW PREPARERS
John Benoit, Executive Officer
PO Box 2694, Granite Bay CA 95746
Phone: 916-797-6003 E-Mail: johnbenoit@surewest.net
Christy Leighton, Planning Consultant
555 East Willow Street, Willows CA 95988
Phone: 530-934-4597 E-Mail: christyleighton@sbcglobal.net
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