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WaterSafeCheck

Sierra Madre, CA Tap Water Quality

Water safety reports for all 2 ZIP codes in Sierra Madre, California

Average Score

71/100

Health Violations

0

ZIP Codes

2

High Lead Risk

1

of 2 ZIP codes

B

About Tap Water in Sierra Madre, CA

The drinking water in Sierra Madre, CA generally meets all federal health standards, earning a solid B grade with a composite safety score of 71/100 across 2 ZIP codes. While the primary water utility, Sierra Madre-city, Water Department, maintains adequate compliance with EPA regulations, there have been minor or administrative violations on record. Overall, residents receive safe tap water that is actively monitored by California State Water Resources Control Board.

A major factor in Sierra Madre's high rating is its flawless health-based violation record. Over the past 5 years of EPA tracking, local water systems have recorded zero health-based violations. This means that regulated contaminants—such as lead, arsenic, and harmful bacteria—have not exceeded the Maximum Contaminant Levels (MCLs) allowed by federal law. Drawing primarily from surface water, the city utilizes advanced filtration to maintain this standard.

Additionally, lead exposure risk remains a critical issue for certain neighborhoods. EPA data indicates that 1 out of 2 ZIP codes in Sierra Madre are rated as High or Very High risk for lead. This risk is often driven by aging homes with pre-1986 plumbing containing lead solder or service lines. Families in these areas should test their tap water and consider NSF/ANSI 53 certified filters.

⚠ Lead Risk Alert: Some ZIP codes in Sierra Madre are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Water Quality by ZIP Code — Sierra Madre, CA

Click any ZIP code for the full water quality report

B
91025

Sierra Madre, CA

Score: 72/100✓ No violations
B
91024

Sierra Madre, CA

Score: 70/100✓ No violations

Frequently Asked Questions — Sierra Madre Water Quality

Is tap water safe to drink in Sierra Madre, CA?+
Yes — tap water in Sierra Madre meets all federal EPA standards and earns a B grade. It is generally safe for healthy adults. As always, running your tap for 30 seconds before use and using a filter adds extra protection for vulnerable populations.
What is the water quality score for Sierra Madre?+
The average water quality score across 2 ZIP codes in Sierra Madre, CA is 71/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Sierra Madre have lead in its tap water?+
1 out of 2 ZIP codes in Sierra Madre are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
How do I get the water quality report for Sierra Madre?+
Each ZIP code in Sierra Madre has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Sierra Madre's tap water come from?+
Tap water in Sierra Madre, CA primarily comes from surface water. Surface water systems treat water from rivers, lakes, or reservoirs using filtration, sedimentation, and disinfection before it reaches your tap.

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