San Antonio Reservoir Hypolimnetic Oxygenation System
2 Documents in Project
Summary
SCH Number
2009032035
Lead Agency
City and County of San Francisco
Document Title
San Antonio Reservoir Hypolimnetic Oxygenation System
Document Type
NOD - Notice of Determination
Received
Posted
7/9/2009
Present Land Use
Reservoir land
Z: Agricultural
Document Description
The San Francisco Public Utility Commission proposes to install a system to add oxygen to the water of the existing San Antonio Reservoir. The proposed oxygen system would be installed near the reservoir at a location approximately 100' from the northern end of Turner Dam. The San Antonio Reservoir Hypolimnetic Oxygenation System project would enhance water quality in the deeper layer of the reservoir (the hypolimnion) becomes depleted during summer months due to limited mixing. With the addition of oxygen into the hypolimnion, nutrient build-up is reduced and water quality is improved. Excessive nutrients promote algae blooms, which require remediation using compounds that may cause taste and odor problems. Odor and taste problems, while usually non-threatening to human health, reduce consumer satisfaction and confidence in a safe water supply and can be difficult and expensive to treat in a water supply treatment plant. In addition, proliferation of certain blue-green algae may form cyanotoxins, which have recently become a public health concern.
Contact Information
Name
Wes Stokes
Agency Name
California Department of Fish and Game
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Counties
Alameda
Cross Streets
La Costa Rd and Indian Creek Rd
Zip
94586
Total Acres
1.839
Parcel #
096-0365-007-02
State Highways
680
Railways
Niles Canyon Heritage
Schools
Sunol Glen ES
Waterways
San Antonio Creek
Other Location Info
City/Nearest Community: Sunol
Notice of Determination
Approving Agency
California Department of Fish and Game
Approving Agency Role
Responsible Agency
Approved On
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
N/A
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
N/A
(6) Findings were made pursuant to the provisions of CEQA
N/A
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.