B75/100
Sierra Madre Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 11,000 residents · California
What's In Sierra Madre's Tap Water?
73
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2007.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
SIERRA MADRE-CITY, WATER DEPT.
Population Served
11,000
Water Source
Purchased Surface Water
System ID
CA1910148
Frequently Asked Questions About Sierra Madre Water
Is Sierra Madre tap water safe to drink?
Sierra Madre, California tap water receives a grade of B (75/100), which is considered good. Out of 73 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Sierra Madre's water?
73 contaminants were tested in Sierra Madre's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Sierra Madre have any water quality violations?
Yes, Sierra Madre has 5 EPA violation(s) on record, with the most recent in 2007. Violation types include MCL. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Sierra Madre?
Sierra Madre water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Sierra Madre's tap water come from?
Sierra Madre's drinking water is sourced from purchased surface water and supplied by SIERRA MADRE-CITY, WATER DEPT.. The system serves approximately 11,000 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Sierra Madre's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Sierra Madre's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Sierra Madre's water compare to other cities in California?
Sierra Madre's water quality score of 75/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about Sierra Madre's water quality?
If you have concerns about Sierra Madre's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SIERRA MADRE-CITY, WATER DEPT.) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.