Operation of Golden State Water Company- Claremont (Company) - Margarita Well 2 1,2,3- Trichloropropane Treatment Project

Summary

SCH Number
2018088568
Lead Agency
State Water Resources Control Board
Document Title
Operation of Golden State Water Company- Claremont (Company) - Margarita Well 2 1,2,3- Trichloropropane Treatment Project
Document Type
NOE - Notice of Exemption
Received
Posted
8/29/2018

Document Description
The Company proposes to install a granular activated carbon (GAC) treatment system to remove 1, 2, 3 - trichloropropane (TCP) from water extracted from an existing groundwater well (Margarita Well 2). The project site consists of the existing Margarita Well 2 (drilled in 2015), the existing Margarita tank (built in 1955), four existing booster pumps, and an existing approximately 180,000- gallon retention pond. The proposed Project will be contained on existing Company property where the existing facilities are located. Water pumped from Margarita Well 2 has a TCP concentration of approximately 5.6 ng/L which exceeds the maximum contaminant level of 5 ng/l. TCP treatment for the existing Margarita Well 2 (850 gallon per minute capacity) is required for the delivery of potable water from the well to the distribution system. Installing treatment will allow the use of Margarita Well 2 to provide potable water to existing customers.

Contact Information
Dmitriy Ginzburg
State Water Resources Control Board
500 North Cnetral Avenue, Suite 500
Glendale, CA 91203

Phone : (818) 551-2004

Location

Counties
Los Angeles
Cross Streets
4455 Palo Verde Street , City of Montclair

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15303
Reasons for Exemption
The project is a new construction in an existing facility. The project involves installing a granular activated carbon treatment system to remove 1, 2, 3- trichloropropane from water extracted from an existing groundwater well.
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