Aspan Well Rehabilitation and Treatment Project - Notice of Determination
2 Documents in Project
Summary
SCH Number
2024060739
Lead Agency
Azusa Light and Water Department
Document Title
Aspan Well Rehabilitation and Treatment Project - Notice of Determination
Document Type
NOD - Notice of Determination
Received
Posted
7/24/2024
Document Description
The proposed project consists of the rehabilitation of the Aspan Well which is currently inactive and has experienced deterioration of the well casing. As part of the rehabilitation, ALW will install a new well casing liner to preserve the well's integrity and will remove the existing welded steel tank and booster pump station from the site. The current water quality issue for the Aspan Well is the presence of 1,1-DCE in excess of the maximum contaminant level (MCL), the concentration allowed in drinking water by the California State Water Resources Control Board – Division of Drinking Water, which requires the installation of a Liquid Phase Granular Activated Carbon (LGAC) treatment system. The proposed LGAC treatment system will be designed for a flow of approximately 1,800 gallons per minute (gpm) and will include two pairs of 12-foot diameter filtration vessels. In addition, Nitrate has been detected in the past in the Aspan Well, although Nitrate concentrations were recently shown to be below the MCL. If treatment for nitrates is needed, the IX treatment system will be installed downstream of the LGAC system and will feature three vessels working
in parallel.
Contact Information
Name
Melissa Barbosa
Agency Name
City of Azusa
Job Title
Assistant General Manager - Water Operations
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
Azusa
Counties
Los Angeles
Regions
Citywide
Zip
91702
Parcel #
8615-018-900
Other Location Info
220 N. Aspan Avenue
Notice of Determination
Approving Agency
City of Azusa
Approving Agency Role
Lead Agency
Approved On
County Clerk
Los Angeles
Final Environmental Document Available at
213 E Foothill Boulevard, Azusa CA 91702
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
No
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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