Canyon Lake Hybrid Treatment Process - Phase 1

5 Documents in Project


SCH Number
Lead Agency
Canyon Lake, City of (City of Canyon Lake)
Document Title
Canyon Lake Hybrid Treatment Process - Phase 1
Document Type
NOD - Notice of Determination

Document Description
Canyon Lake was formed in 1928 when the Canyon Lake / Railroad Canyon Dam was constructed. Canyon Lake is located in Riverside County, and is within the City of Canyon Lake. It is owned and operated by the Elsinore Valley Municipal Water District (EVMWD). EVMWD has used the reservoir as a potable water source since 1957 when the Canyon Lake Water Treatment Plant began operation. The reservoir is supplied by stormwater runoff from both the upper San Jacinto River Watershed and Salt Creek watershed. The reservoir, covers approximately 525 acres (212 ha), has 14.9 miles (24.0 km) of shoreline, and has a storage capacity of 11,586 acre-feet (14,291,000 m^3). The lake has three main sections - the relatively shallow East Bay (depths generally less than 10 ft), the deeper Main Lake portion of the lake (depths in excess of 40 ft), and the area north of the causeway that connects with the San Jacinto River. The proposed Project consists of application of alum to Canyon Lake to remove nutrients that contribute to algal blooms. A wide-range of management options, ranging from oxygenation, aeration, mixing, and dredging to application of alum, Phoslock, and other nutrient binders have been considered.

Contact Information
Makr Norton
City of Canyon Lake
31516 Railroad Canyon Road
Canyon Lake, CA 92587

Phone : (951) 354-4221


33°40'6"N 117°16'21"W
Canyon Lake
Canyon Lake

Notice of Determination

Approving Agency
Lake Elsinore and San Jacinto Watershed Authority
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
City of Canyon Lake, 31516 Railroad Canyon Road, Canyon Lake, CA 92587


(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 or via phone at (916) 445-0613.

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