Well 201 Groundwater Treatment Facility Enhancements
Summary
SCH Number
2021110431
Public Agency
Santa Clarita Valley Water Agency
Document Title
Well 201 Groundwater Treatment Facility Enhancements
Document Type
NOE - Notice of Exemption
Received
Posted
11/29/2021
Document Description
The Well 201 Project includes the addition of GAC treatment to an existing well site with existing treatment for perchlorate. The existing site includes a well with 300 hp vertical turbine well pump (in a sound enclosure), four (4) bag filters, two (2) 12-ft. diameter ion exchange vessels in lead-lag configuration, one (1) 200 hp horizontal split-case booster pump. The existing site is enclosed (side and roof) in a slatted chain-link fence and masonry wall. The proposed project includes the addition of:
• Up to 2 (two) lead-lag trains of GAC vessels (4 vessels total), with two valve trees to connect the feed water inlet, treated water outlet, backwash in/out and to configure the vessels in lead-lag operations (each train includes one (1) valve tree). All valves on the valve tree are manual valves. Pressure and differential pressure instrumentation on the valve tree is included. Each vessel includes a pressure relief valve with a limit switch. Each GAC Vessel is 12-ft. in diameter, with a height of 26’ to CL of top inlet pipe.
• New 300 hp well pump with operating point of 2,000 gpm at 450 ft. TDH.
• One (1) backwash tank with a capacity of approximately 50,000 gallons, 20-ft. diameter and 19-ft. height.
• Two backwash pumps (including 1 standby), horizontal split-case, each with a 30 hp motor and pipeline to connect backwash waste to the sanitary sewer.
• Modulating flow control valve on the treated water header.
• New piping, valving, and instrumentation to connect the VOC treatment system into the existing treatment.
Contact Information
Name
Rick Vasilopulos
Agency Name
Santa Clarita Valley Water Agency
Job Title
Water Resources Planner
Contact Types
Lead/Public Agency / Project Applicant
Phone
Email
Location
Cities
Santa Clarita
Counties
Los Angeles, Ventura
Regions
Countywide
Cross Streets
Valencia Blvd and Citrus Street
Zip
91355
Other Location Info
project located at 24050 Valenica Blvd, Valencia, CA 91355
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301
Reasons for Exemption
The Project, aka the whole of the action, qualifies for an exemption under Class 1 Existing Facilities because it is a minor alteration of an existing public facility and it concerns proposed new mechanical equipment involving negligible or no expansion of use, i.e., no additional delivery of water, beyond that existing at the time of the lead agency’s determination.
None of the exceptions listed in Section 15300.2 of the CEQA Guidelines would apply to the action. The project environment is located within SCV Water’s existing facility property.
County Clerks
Los Angeles, Ventura
Attachments
Notice of Exemption
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