San Gabriel Valley Municipal Water District Board Meeting Agenda Packet May 2026
EarthTec QZ selected for golden mussel treatment
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Description
A regional golden mussel treatment plan calls for the use of EarthTec QZ as the primary copper-based biocide for protecting the San Gabriel Valley/Azusa and San Bernardino/Foothill pipelines, with a base annual chemical cost estimate of about $140,275 for SGVMWD at low-dose operation. The product will be applied continuously from the Devil Canyon First Afterbay under various flow and dosing scenarios.
Contract Details
Contract Amount
Unit cost $18.72 per gallon; various scenario totals (e.g., $140,275 annually at base dosing for SGVMWD)
Vendor
EARTHTEC QZ
Agency
Upper San Gabriel Valley Municipal Water District, CA
Contract Type
SUPPLIES
Document Date
May 9, 2026
Contract Term
Pilot: 30 days; Full program: ongoing annual treatment with seasonal dosing scenarios
Renewal Info
Ongoing purchase of EarthTec QZ based on actual flows and dosing; quantities may be adjusted annually as part of the Golden Mussel Treatment Program.
Issuing Agency
Upper San Gabriel Valley Municipal Water District
Utility District
Monrovia, CA
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