B71/100
YORK WATER CO — Water Quality Report 2026
Serving 206,762 people · Pennsylvania
Water Source
Surface Water
County
—
System ID
PA7670100
Violations
19
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 290.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 3Unresolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 11, 2025Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – September 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2022 – December 31, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Maximum Contaminant Level Violation
When: July 1, 2022 – July 31, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
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
Frequently Asked Questions About YORK WATER CO
Is YORK WATER CO water safe to drink?
YORK WATER CO water receives a grade of B (71/100), which is considered good. Out of 76 contaminants tested, none exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has YORK WATER CO detected?
76 contaminants were tested in YORK WATER CO's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does YORK WATER CO have any EPA violations?
Yes, YORK WATER CO has 19 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, MCL. 1 are health-based violations.
How many people does YORK WATER CO serve?
YORK WATER CO serves approximately 206,762 people, Pennsylvania.
What type of water does YORK WATER CO provide?
YORK WATER CO sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is PA7670100.
How does YORK WATER CO compare to other utilities in Pennsylvania?
YORK WATER CO scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Pennsylvania state page for a full comparison of water systems.