SERVING OUR COMMUNITY SINCE 1924
Roy Frausto, General Manager
2026 Local Water Supply Update
April 28, 2026
Overview
• Local Groundwater Supply
• Golden Mussel
• Main Basin
• PVOU-IZ Project
• AB 1572
• Cross Connection Control Update
Golden Mussel
• The Golden Mussel is an invasive species first detected in California’s State Water Project (SWP) in Oct. 2024
• SWP deliveries into the SGV halted by LA County in Sep. 2025 • Impacts to long term operations, maintenance, and treatment costs (clogged screens, pipes, valves, etc.)
WHAT IS BEING DONE
• Golden Mussel Control Plan submitted in Nov. 2025
• Legislative Efforts (AB 149 and AB 1772)
• Treatment (EarthTec QZ)
Main Basin
• Rainfall – 17 inches YTD
• Average 16.5 inches
• Key Well – 265.8 ft
• Historic High 295.3 ft
• Historic Low 169.4 ft
What is the Puente Valley Operable
Unit – Intermediate Zone (PVOU-IZ)?
It is a groundwater contaminated
basin under the portions of the cities
of Industry and La Puente and
unincorporated LA County.
Overview of PVOU-IZ Treatment
7 Wells
3.75 Miles of Pipe
2,000 GPM TP
PVOU-SZ Overview
Permitting
97-005 Permitting
• Pending a public hearing date for public
review of technical documents and
opportunity for public input
AB 1572: Non-Functional Turf
• Prohibits the use of potable water to irrigate
decorative, non-recreational turf at
commercial, industrial, and institutional
properties
• AB 1572 took effect in January 2024 and
requires full compliance by January 1, 2027
• Intent is to reduce unnecessary outdoor
water use and promote the conversion of
ornamental turf to climate-appropriate,
water-efficient landscaping
Cross Connection Control Update
All single check backflow devices installed below grade in vaults must be upgraded to DCDA or RPDA and raised above grade (at the cost of the customer) 2034 Compliance Deadline
SERVING OUR COMMUNITY SINCE 1924
Roy Frausto, General Manager
QUESTIONS ?