Residual Management System (RMS) for the Lower Heron Tanks 1 and 2
Summary
SCH Number
2026080327
Public Agency
State Water Resources Control Board
Document Title
Residual Management System (RMS) for the Lower Heron Tanks 1 and 2
Document Type
NOE - Notice of Exemption
Received
Posted
8/12/2026
Document Description
Lower Heron 1 and 2 are both 2.5-million-gallon storage tanks
which were constructed in 1998. A long-term solution to address water quality
challenges would involve constructing of a residual management system (RMS) with
onsite hypochlorite generation at this location. The RMS will consist of a prefabricated
structure, constructed onsite, which will house a DeNora ChlorTec Onsite Sodium
Hypochlorite generation system, chemical storage of liquid ammonium sulfate (LAS),
pumps, and analytical equipment. Electrical and SCADA improvements are also
included with this project. The RMS will be constructed at an existing facility and will not
require any additional construction outside of the facility property boundary.
Contact Information
Name
Bill Liang
Agency Name
SWRCB-DDW
Job Title
Angeles District Engineer
Contact Types
Lead/Public Agency
Phone
Location
Cities
Santa Clarita
Counties
Los Angeles
Regions
Southern California
Cross Streets
north of 17705 Heron Ln., Santa Clarita, CA 91387
Zip
91387
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1: Existing Facilities Cal. Code of Regs., section 15301
Reasons for Exemption
This project complies with both the California
Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA)