A84/100
Hayfork Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,324 residents · California
What's In Hayfork's Tap Water?
1
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.044 mg/L | 0.015 mg/L | Over Limit |
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 – August 1, 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
TRINITY CO. W.W. DIST #1
Population Served
2,324
Water Source
Surface Water
System ID
CA5310002
Frequently Asked Questions About Hayfork Water
Is Hayfork tap water safe to drink?
Hayfork, California tap water receives a grade of A (84/100), which is considered excellent. Out of 1 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 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 Hayfork's water?
Of the 1 contaminants tested in Hayfork's water supply, the most notable include Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Hayfork have any water quality violations?
Yes, Hayfork has 4 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Hayfork?
Based on EPA data, using a water filter in Hayfork is recommended. 1 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 Hayfork's tap water come from?
Hayfork's drinking water is sourced from surface water and supplied by TRINITY CO. W.W. DIST #1. The system serves approximately 2,324 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Hayfork'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. Hayfork'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 Hayfork's water compare to other cities in California?
Hayfork's water quality score of 84/100 earns a grade of A, which is considered excellent. This places Hayfork among the better-performing water systems in California. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about Hayfork's water quality?
If you have concerns about Hayfork'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 (TRINITY CO. W.W. DIST #1) 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.