Sunset Reservoir Ion Exchange Project

5 Documents in Project


SCH Number
Lead Agency
Pasadena, City of (City of Pasadena)
Document Title
Sunset Reservoir Ion Exchange Project
Document Type
NEG - Negative Declaration
Present Land Use
Major Utility (Water reservoir and treatment plant)/Zoning: PS Zone (Public, Semi-Public District)/General Plan Designation: Institutional.

Document Description
NOTE: Review Per Lead The applicant, Pasadena Water and Power, filed a Conditional Use Permit application to allow the construction, installation, and operation of an ion exchange, (IX) treatnebt system, a booster pump station, a chloramination system, and piping at the City's Sunset Reservoir site. The system will require up to two pairs of IX vessels up to 12 feet in diameter and 17 feet tall. The booster pump station enclosure will be approximately 13 feet tall and 440sf in size (20- feet by 22 feet). The chloramination system consists of two above-ground, tanks that would be installed under a canopy-type structure to protect them from direct sunlight. The area of canopy is 476sf (28 feet by 17 feet). The 6,650-gallon sodium hypochorite tank and 1,800 gallon ammonium hydroxide tank would be approximately 11 feet in diameter and 15 feet in height, and six feet in diameter and ten feet in height, respectively. The existing 1,207sf maintenance building and chlorine building would be demolished as part of site preparation for the project.

Contact Information
Antonio Gardea
City of Pasadena
175 N. Garfield Avenue
Pasadena, CA 91101

Phone : (626) 744-6725


34.161°'"N 118.155°'"W
Los Angeles
Cross Streets
Near the intersection of Sunset Avenue and Mountain Street
Total Acres
Parcel #
State Highways
Hwy 210

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Treatment Type, 2,300 MGD)
Local Action
Use Permit
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Sewer Capacity Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Water Quality Water Supply Land Use Cumulative Effects
Reviewing Agencies
California Department of Fish and Wildlife, South Coast Region 5 California Department of Parks and Recreation California Department of Public Health California Department of Transportation, District 7 California Highway Patrol California Regional Water Quality Control Board, Los Angeles Region 4 Department of Toxic Substances Control Department of Water Resources Resources Agency Resources, Recycling and Recovery State Water Resources Control Board, Division of Water Quality California Native American Heritage Commission

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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