B78/100
LANCASTER CITY PWS — Water Quality Report 2026
Serving 40,400 people · Ohio
Water Source
Groundwater
County
—
System ID
OH2301012
Violations
3
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 637.00 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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 LANCASTER CITY PWS
Is LANCASTER CITY PWS water safe to drink?
LANCASTER CITY PWS water receives a grade of B (78/100), which is considered good. Out of 67 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LANCASTER CITY PWS detected?
67 contaminants were tested in LANCASTER CITY PWS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LANCASTER CITY PWS have any EPA violations?
Yes, LANCASTER CITY PWS has 3 EPA violation(s) on record, with the most recent in 2018. Violation types include Other, MCL. 2 are health-based violations.
How many people does LANCASTER CITY PWS serve?
LANCASTER CITY PWS serves approximately 40,400 people, Ohio.
What type of water does LANCASTER CITY PWS provide?
LANCASTER CITY PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH2301012.
How does LANCASTER CITY PWS compare to other utilities in Ohio?
LANCASTER CITY PWS scores 78/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Ohio state page for a full comparison of water systems.