Protecting Public Health and Safety


Wastewater Collections System Administrative and Operations Relocation Project

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El Dorado Hills (EDH) Wastewater (WW) Relocation Project


Project Background

Bass Lake Wastewater Collections Administrative and Operations Facility

The District’s wastewater collection and maintenance facility located at Bass Lake has been in operation for several Wastewater Collections Working Using VacTruckdecades. If the facility was to remain serving the District in this capacity, significant capital reinvestment would be required to provide safe and reliable facilities for these District operations and meet the growing wastewater maintenance operations of the area. In light of the constraints and costs associated with continuing operations at the Bass Lake site, the District is proposing to sell the property to help support a community park and relocate the wastewater collections and maintenance operations to an existing wastewater treatment operations facility owned and operated by EID since 1962.

Proposed Sale of Bass Lake Property to El Dorado Hills Community Services District

In June of 2017, the EID Board of Directors authorized a purchase and sale agreement with the CSD for the sale of the District’s Bass Lake parcel that currently supports the District’s wastewater collections operations and maintenance.

The CSD is seeking to acquire the Bass Lake property as part of the CSD’s Bass Lake Park project.  The Bass Lake Park project is a proposed park that would be the largest park and recreational project in the El Dorado Hills area. See

The sale of the Bass Lake property will allow the District to utilize the sale proceeds to develop improvements at the EDHWWTP to support the District’s wastewater collections and maintenance operations together with the existing wastewater treatment operations and maintenance activities already existing at the EDHWWTP for over 50 years.

Proposed Relocation and Site Improvements Adjacent to the Administrative Buildings at the  EDHWWTP

Wastewater Collections Workfng VacTruck

The District is proposing to relocate the Bass Lake wastewater collections operations to a parcel that is adjacent to the administrative buildings at the EDHWWTP. The purpose of the proposed relocation project is to consolidate the wastewater collections and treatment operations in the El Dorado Hills area, while concurrently addressing facility improvement costs and the increasingly constrained operations of the current Bass Lake property. 

The District proposes to make improved parking and access to the facility as well as renovate an existing building and construct additional equipment and storage buildings.

Environmental Review and Permitting

On December 12, 2019 the El Dorado County Planning Commission, who serves as lead agency under CEQA, approved a Conditional Use Permit and also adopted a MND, which was available for public review and comment from November 11, to December 12, 2019. The approval allows for the relocation of the wastewater collection operations and site improvements at the EDHWWTP as described above.

The District is the responsible agency, pursuant to CEQA Section 15096 et set, Title 14, California Code of Regulations for the proposed project.  As the responsible agency the EID Board of Directors will consider adopting the MND for the project at the January 13, 2020 regular Board meeting.  A courtesy notice for EID's Board of Directors upcoming proposed action will be mail to residences who may have a direct line of sight to the project area.

Emails with updates on the project are being sent to those subscribed to the "WW Consolidation Project".

The project’s potential environmental impacts will be evaluated, consistent with the California Environmental Quality Act and are posted below under "Environmental Documents". 

Additional Improvements at the EDH Latrobe Road Facility

In addition to the relocation project, the District is also completing odor control upgrades at the facility in 2019. For more information about the Odor Control Project, please contact Liz Carrington at or call 530.642.4077.  Visit the El Dorado Hills Odor Control Upgrade Project webpage for more details.

The District is also pursuing the expansion of the existing solar photovoltaic array located at the facility. Please see the Solar - Deer Creek and El Dorado Hills project webpage for more information specific to the solar array projects.

  • Wastewater Collections Relocation Project Questions:  Mike Baron at (530) 642-4188 or
  • To receive notice when more information is posted about this project go to eNews Sign Up and under the Calendar and News items select WW Consolidation Project.

What’s Happening at the El Dorado Hills Wastewater Treatment Plant?

Post Date:05/15/2019 4:15 PM

News Release Mast

Contact: Jesse Saich, (530) 642-4127,

Placerville, Calif. — EID is always looking for opportunities to improve efficiency, reduce operating costs, and provide reliable services to its customers. The following three examples highlight EID’s ongoing efforts to improve wastewater collection and treatment services at the El Dorado Hills Wastewater Treatment Plant (EDHWWTP). 

The EDHWWTP, located off of Latrobe Road in El Dorado Hills, provides wastewater treatment to over 12,000 services in the El Dorado Hills area.  The plant was constructed in 1961 and over the years EID has made infrastructure improvements to meet growing demands and produce recycled water for many homes and commercial areas throughout El Dorado Hills—all the while ensuring  compliance with strict federal and state regulatory requirements.

Three current and upcoming improvement projects at the EDHWWTP include:

Odor Control


The EDHWWTP Odor Control project will replace two deteriorating odor control devices adjacent to the large storage tanks along the north side of the facility and install additional air ducting at the headworks to capture odors associated with sewage as it enters the facility.   Work to replace the existing devices will commence in a systematic fashion as to continually provide odor control during construction.   

This project will commence in June 2019 and continue for approximately 9 – 10 months with operations start-up planned for early spring 2020.

For additional information on this project please feel free to contact Liz Carrington at or 530-642-4077.

 Solar Field Expansion

The second project includes installation of additional solar arrays adjacent to those installed in 2006. EDH-SolarExpansion

The solar arrays and associated electrical equipment (inverters, transformers, switchgear, system disconnects, and service meters) would occupy a roughly 6.5 acre portion of the WWTP located on the eastern portion of the facility encompassing the current solar field. The California Environmental Quality Act (CEQA) document for this proposed addition is currently being circulated for public and agency review and comment. The closing date for the comment period on the CEQA document will be June 11 by 5:00 pm. A public hearing for EID Board consideration and adoption of the environmental document will be held at 9:00 am on June 24 at EID headquarters (2890 Mosquito Road, Placerville, CA 95667).

The project construction phase is expected to begin in July 2019 and last approximately 7 to 9 months, with completion and operations start-up planned to occur in early 2020.

For more information on the Solar Field Expansion project please feel free to contact Brian Deason at or 530-642-4064. 

Wastewater Collections Relocation

The third project will relocate the wastewater collections operation and maintenance facility from its current location adjacent to Bass Lake to the EDHWWTP where the wastewater operations can be centralized.  The El Dorado Hills Community Services District has entered into an agreement to purchase the Bass Lake property and has issued proposed plans for a regional park that will greatly enhance the recreational experience for the community.

EID is excited to be a partner in helping facilitate this regional park. The sale of the Bass Lake property to the El Dorado Hills CSD will allow EID to use the sale proceeds to help fund the needed changes at the EDHWWTP. The District will benefit from the relocation by consolidation of wastewater staff and increasing opportunities for operational efficiency to meet the long-term needs of our customers in the most cost efficient way possible.

The proposed project includes an interior remodel and expansion of an existing building, construction of equipment buildings/garages, resurfacing of areas for on-site vehicle circulation and parking, and operations support materials and equipment staging areas. Approximately 20 employees will be relocated to the site as a result of the project. The proposed project would require approval of a conditional use permit by El Dorado County to allow for the relocation of operations from the Bass Lake Facility to the EDHWWTP property. The County will be serving as the lead agency under the California Environmental Quality Act.

If you have any questions regarding the Wastewater Collections Relocation Project, you can contact Michael Baron at 530-642-4188 or

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EID is a public agency dedicated to providing high quality water, wastewater treatment, recycled water, hydropower, and recreation services in an environmentally and fiscally responsible manner.

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