Foothill Municipal Water District
EPA ID: CA1910032 · 0 people served · 10 ZIP codes
Unlike many utilities its size, Foothill Municipal Water District carries a violation-free five-year record — no EPA notices, no MCL exceedances, serving 0 people.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 78% chance of violation in next 12 months
Violations went from 3 (2021) to 6 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Foothill Municipal Water District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Foothill Municipal Water District serves a community with a median household income of $124,880 and an estimated 236,714 residents across its service area. Approximately 85% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 49% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Foothill Municipal Water District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 2% of homes in Los Angeles County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 51 detections recorded. 14 exceed federal EPA limits (4 ppt for PFOA/PFOS). 10 exceed state limits.
Comparable Water Systems
Similar-sized systems in California
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Foothill Municipal Water District (EPA ID: CA1910032) is a community water system in California that serves approximately 0 people from surface water sources.
This system provides water to 10 ZIP codes across 6 communities.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 9 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 91001 — Altadena
- 91011 — La Canada Flintridge
- 91012 — La Canada Flintridge
- 91020 — Montrose
- 91103 — Pasadena
- 91104 — Pasadena
- 91107 — Pasadena
- 91206 — Glendale
- 91208 — Glendale
- 91214 — La Crescenta
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Foothill Municipal Water District (CA1910032) on EPA.gov.
Frequently Asked Questions
Is Foothill Municipal Water District water safe to drink?
Based on EPA records, Foothill Municipal Water District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Foothill Municipal Water District serve?
Foothill Municipal Water District serves approximately 0 people across 10 ZIP codes in California.
Where does Foothill Municipal Water District get its water?
The primary water source is surface water.