Our Mission, Organization,
Facts, and History
safely and responsibly collect and treat wastewater for the Tri-Cities
while protecting human health and improving the environment in a
way that benefits our customers, employees and the community.
more about how we accomplish our Mission
our organizational chart here.
Employee Union's Mission:
District is synonymous with quality work. Our highly skilled and
qualified labor force is the cornerstone to the overall public health
and success of the communities we serve. Through hard work and dedication,
we provide customers with value for their dollar.
Sewer System Management Plan (SSMP) can be found HERE.
The SSMP is updated twice a year - last updated 5/24/2016.
When was USD founded?
May 27, 1918
What area does USD serve? (annexed areas)
City of Fremont 36.4 sq.mi.
City of Newark 13.8 sq.mi.
City of Union City 9.9 sq.mi.
Total 60.2 sq.mi.
How many people are served by USD?
What types of customers are served? (2/13)
| Union City
| Total population served (January 2016 California
Dept. of Finance demographics)
Type of customer
No. of Connections
Domestic/Residential living units
How many miles of sewers does USD maintain? 811
How many gallons of wastewater are treated each day?
2015 Average Daily Flow:
21.85 million gallons
What type of treatment does the plant provide?
Primary: which uses screening and sedimentation
Secondary: which uses activated sludge
Who are the major industrial dischargers in the area served by
USD and what is their flow (gallons per day)? (6/16)
|Western Digital - Fremont #1
|U.S. Pipe & Foundry
| Washington Hospital
|Thermo Fisher Scientific
How many people does USD employ? 137 (July 2016)
What is USD's annual operating budget? $34,534,433 (FY 2017)
USD's Fiscal Year 2016: July 1, 2016 through June 30, 2017
What is the annual service charge for a single family? $380.05
(as of July 1, 2016))
What is the current capacity fee? $6,421.17 equivalent dwelling
unit (FY 2017)
1918 Union Sanitary District
(USD) founded; first Board of Directors meeting
1923 District reorganized under Sanitary District Act of 1923
1924 First two connections made to USD system
1949 Niles Sanitary District becomes part of USD
1954 Decoto Sanitary District annexed to USD
1956 Irvington Sanitary District becomes part of USD
1962 City of Union City joined USD service area
1974 East Bay Dischargers Authority (EBDA) JPA formed; USD contracted
.........19.7 mgd of capacity in outfall to deep portion of San
1981 Alvarado Wastewater Treatment Plant (WWTP) completed
.........Abandoned Newark & Irvington plants
.........Transport system and EBDA outfall put into operation
1988 Alvarado WWTP expansion completed
1990 Treatment Plant Facilities Plan completed
1994 District-wide Master Plan completed and EIR certified
1996 Alvarado Wastewater Treatment Plant Upgrade construction complete
1997 Reorganization into
a Team-based organization
2001 Consolidated USD Administration,
Corp Yard and Wastewater Treatment Facilities at one location in
DISTRICT FORMATION AND AUTHORITY
The Union Sanitary District is an independent special district
which provides wastewater collection, treatment and disposal services
to the residents and businesses of the cities of Fremont, Newark
and Union City, in Southern Alameda County, California. Independent
special districts are voted into existence by the citizens they
serve and are sanctioned under California law to perform specific
local government functions within certain boundaries. The District
was formed in 1918 and reorganized under the Sanitary District Act
of 1923. It derives its authority in the California Health &
Safety Code (Sections 6400-6830). The District is governed by an
elected Board of Directors which is accountable to the public. The
Directors are members of the community they represent. The District
recovers the cost of their service delivery through rates imposed
on users of the service. The District is independently audited and
subject to state and public scrutiny.
Other special districts
in Alameda County provide services such as water, fire service,
mosquito abatement, recreation, parks and hospital services