N-Wellfield PFAS IX Treatment Facility and Baseball Field Disinfection Facility Project
2 Documents in Project
Summary
SCH Number
2019100073
Public Agency
Santa Clarita Valley Water Agency
Document Title
N-Wellfield PFAS IX Treatment Facility and Baseball Field Disinfection Facility Project
Document Type
NOE - Notice of Exemption
Received
Posted
12/11/2020
Present Land Use
recreation
Document Description
The Santa Clarita Valley Water Agency – Valencia Division (hereinafter
Valencia Division) proposed Project includes the N-Wellfield PFAS IX Treatment Facility and the Baseball
Field Disinfection Facility at the location described above. The Valencia Division will utilize ion exchange
treatment to remove per and polyfluoroalkyl substances (PFAS) from the raw water of Wells N, N-7, and N-8 at
the N-Wellfield PFAS IX Treatment Facility. Wells N, N-7, and N-8 have a combined capacity of 6,250 gpm.
The effluent from the IX vessels will then receive chloramination treatment at the Baseball Field Disinfection
Facility. The N-Wellfield PFAS IX Treatment Facility includes three disposable cartridge filters, three treatment
trains (six ion exchange vessels total, with two vessels operated in lead and lag configuration for each
treatment train), face piping, and piping module with support skid. The treatment system can treat up to 6,250
gpm. The Baseball Field Disinfection Facility includes a sodium hypochlorite generation and chemical feed
system, and a liquid ammonium sulfate storage and feed system. Both treatment facilities are equipped the
associated electrical equipment, Supervisory Control and Data Acquisition (SCADA) system, and water quality
measuring equipment.
Contact Information
Name
Shu-Fang Orr
Agency Name
State Water Resources Control Board
Contact Types
Lead/Public Agency
Phone
Location
Regions
Citywide
Cross Streets
23503 Valencia Boulevard, Santa Clarita CA 91355
Zip
91355
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1 title 14, division 6, chapter 3, article 19, section 15301
Reasons for Exemption
the treatment facility is minor alteration of an existing public facility and the 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 proposed actions.
Exempt Status
Categorical Exemption
Type, Section or Code
Class 3 title 14, division 6, chapter 3, article 19, section 15303
Reasons for Exemption
This Project also qualifies for an exemption under Class 3 New Construction or Conversion of Small Structures because the project construction is
limited to construction within the existing footprint of the fenced facility. None of the exceptions listed in Section 15300.2 of the CEQA Guidelines would apply to the proposed actions.
Attachments
Notice of Exemption
Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.