Muni Water purchases Hetch Hetchy municipal water and treated water from the San Francisco Public Utility Commission (SFPUC) to serve Alviso and North San José customers. In 2017, the Hetch Hetchy Watershed provided most of the SFPUC supply, supplemented by water from Alameda and Santa Clara county watersheds.

The primary source begins as snowmelt flowing down the Tuolumne River to the Hetch Hetchy Reservoir. This water source meets all federal and state watershed protection requirements, allowing for a filtration exemption from the state and USEPA due to its excellent quality and operational standards.

The Alameda Watershed covers over 35,000 acres across Alameda and Santa Clara counties. Rainfall and runoff collect in the Calaveras and San Antonio reservoirs before treatment at the Sunol Valley Water Treatment Plant (SVWTP).

Recent system improvements include ultraviolet disinfection for Hetch Hetchy water starting in 2011. Fluoridation, chloramination, and corrosion control are applied to the combined water at the Sunol facilities.

SFPUC actively protects its water resources through regular watershed assessments and management activities to minimize contamination risks. These reports, which identify wildlife and human activity as potential contamination sources, are available through the SWRCB San Francisco District office.

In 2017, deep-well groundwater from North San José supplemented the SFPUC supply, resulting in some customers receiving a blend of groundwater and SFPUC water. This may cause slight differences in taste and odor due to groundwater's typically higher mineral content. Muni Water conducted a source water assessment of these wells in January 2003.

For the Evergreen Service Area, Muni Water purchases treated surface water from the Santa Clara Valley Water District (SCVWD). This water comes primarily from the South Bay Aqueduct, Dyer Reservoir, Lake Del Valle, and San Luis Reservoir (all drawing from the Sacramento-San Joaquin Delta), plus local sources including Anderson and Calero reservoirs.

SCVWD treats this water at three San José plants using ozone as the primary disinfectant since 2006. Ozone effectively eliminates microbial contaminants while producing fewer disinfection byproducts than chlorine, and also removes unpleasant tastes and odors from seasonal algal blooms.

Source waters face potential contamination from agricultural and urban runoff, recreational activities, livestock grazing, and development. Imported sources have additional exposure to wastewater discharge, seawater intrusion, and wildfires. Local sources face risks from industrial sites and historic mining. No contaminants from these activities have been detected in treated SCVWD water, which undergoes multiple treatment barriers.

As in other areas, some Evergreen customers may have received blended groundwater and treated SCVWD water in 2017. Muni Water assessed the Evergreen wells in December 2014.

Frequently Asked Questions

Yard Waste Information

The Yard Waste Drop-Off Site opens the last Wednesday in March and closes the final Sunday in November. Only the following items are accepted:

• Grass Clippings
• Brush/Branches - maximum 20" diameter and 6' long
• Leaves

NO CONTRACTORS! Village residents only, photo ID required.

Location: 6900 Nicholson Road (west of the Safety Building)

Hours of Operation:

• Wednesday: 1:30 pm-7:00 pm
• Saturday: 10:00 am-4:00 pm
• Sunday: 11:00 am-5:00 pm

Neighbor Property Concerns

Most residents maintain their properties well. If you have concerns about a neighboring property, consider addressing issues amicably, as maintaining good relationships is important. The issue may be covered in our Municipal Code of Ordinances. If not listed there, the Municipality has no jurisdiction.

Relevant Municipal Codes:

• TITLE 8 - Community Welfare, Refuse and Sanitation
• TITLE 11 - Offenses and Nuisances
• TITLE 17 - Public Health

Key Contacts:

• Health Department: (262) 898-4460
• Weed Commissioner: (262) 835-6458
• Non-Emergency Police: (262) 886-2300
• Main Office: (262) 835-4451

Burning Permits

Same-day approval for Open Burning is possible when weather permits. Call the burning permit line (835-4357). Recreational, ceremonial, and cooking fires have no time restrictions and don't need approval, depending on weather conditions.

After-Hours Utility Emergency

For fire, medical, or law enforcement emergencies, dial 911. For utility emergencies requiring immediate attention, call: (262) 939-3409

Property Tax Information

First installments due by January 31, payable to Village. Second installments due by July 31, payable to County Treasurer. Payments must be postmarked by the due date to be timely.

Electronics Recycling

E-CYCLE DAYS occur throughout the year. Most electronics are collected for free, with fees of $25 per TV and $10 per CRT Monitor at 6900 Nicholson Road. Accepted items include computers, laptops, printers, monitors, keyboards, and various electronic devices.