8th Street and El Moro Avenue Well Site Project

2 Documents in Project


SCH Number
Lead Agency
Los Osos Community Services District
Document Title
8th Street and El Moro Avenue Well Site Project
Document Type
NOD - Notice of Determination
Present Land Use
Residential Single Family / Local Coastal Plan Area / Archaeologically Sensitive Area
Document Description
The proposed project includes: demolition of an existing well house; construction of a new Upper Aquifer Well and if required, skid-mounted ion-exchange unit (nitrate removal facility); and, installation of a pre-manufactured, approximately 600-square foot, metal building to house the existing and proposed wells and nitrate removal facility. The ion-exchange unit will be used to treat approximately 75 to 100 gallons per minute, or approximately 100 to 150 acre-feet per year (afy), of high nitrate water from the new well. The nitrate removal facility will generate approximately 2,800 gallons of brine waste 3-4 times per week. A new 7,000-gallon High Density Polyethylene tank for brine storage will be located within the yard, and will be emptied 3-4 times per week, and trucks will haul the brine off-site for disposal at an approved facility. The brine storage tank will have a high level alarm that will shut the well down in the event the brine waste reaches the high level, which will prevent overflowing. The project includes a new underground waterline that will connect the proposed well to the existing water main located onsite and a new 90-foot long underground pipeline to connect the proposed nitrate removal facility to the proposed brine storage tank. Existing electric utilities will be connected to the new building, and will not require additional ground disturbance. Installation of the new well will increase production from the upper aquifer by 100-150 afy, thus reducing the pumping from the Lower Aquifer by the same amount. The approximate area of disturbance will be up to 1,200 square feet, within the approximately 0.5-acre work yard. Construction would occur during daytime hours during the dry season.

Contact Information

Margaret Falkner
Agency Name
Los Osos Community Services District
Contact Types
Lead/Public Agency


San Luis Obispo
Cross Streets
8th Street and El Moro Avenue
Total Acres
Parcel #
Baywood ES, MS
Morro Bay, Los Osos Creek, unnamed tributary
Other Location Info
Los Osos

Notice of Determination

Approving Agency
Los Osos Community Services District
Approving Agency Role
Lead Agency
Approved On


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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