B70/100
Montebello Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 41,575 residents · California
What's In Montebello's Tap Water?
66
Contaminants Tested
2
Exceed EPA Limits
1
Above EPA Goals
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.053 µg/L | 0.004 µg/L | Over Limit |
PFOA | 0.015 µg/L | 0.004 µg/L | Over Limit |
1,4-dioxane | 1.40 µg/L | — | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – September 18, 2024Rule: Ground Water RuleEnforcement: Formal — state order issued
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
MONTEBELLO LAND & WATER CO.
Population Served
26,554
Water Source
Groundwater
System ID
CA1910091
SOUTH MONTEBELLO IRRIGATION DIST.
Population Served
15,021
Water Source
Groundwater
System ID
CA1910153
Frequently Asked Questions About Montebello Water
Is Montebello tap water safe to drink?
Montebello, California tap water receives a grade of B (70/100), which is considered good. Out of 66 contaminants tested, 2 exceed EPA maximum contaminant levels (MCLs) and 3 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Montebello's water?
Of the 66 contaminants tested in Montebello's water supply, the most notable include PFOS, PFOA, 1,4-dioxane. 2 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Montebello have any water quality violations?
Yes, Montebello has 8 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MON, MCL. 4 of these are health-based violations, which are the most serious category.
Do I need a water filter in Montebello?
Based on EPA data, using a water filter in Montebello is recommended. 2 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Montebello's tap water come from?
Montebello's drinking water is sourced from groundwater and supplied by MONTEBELLO LAND & WATER CO. and 1 other water system(s). The system serves approximately 41,575 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Montebello'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. Montebello'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 Montebello's water compare to other cities in California?
Montebello's water quality score of 70/100 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 Montebello's water quality?
If you have concerns about Montebello'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 (MONTEBELLO LAND & WATER CO.) 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.