D28/100
COSHOCTON PWS — Water Quality Report 2026
Serving 13,537 people · Ohio
Water Source
Groundwater
County
—
System ID
OH1600012
Violations
20
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 COSHOCTON PWS
Is COSHOCTON PWS water safe to drink?
COSHOCTON PWS water receives a grade of D (28/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 20 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has COSHOCTON PWS detected?
66 contaminants were tested in COSHOCTON PWS's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does COSHOCTON PWS have any EPA violations?
Yes, COSHOCTON PWS has 20 EPA violation(s) on record, with the most recent in 2020. Violation types include Other, MCL, MR. 13 are health-based violations.
How many people does COSHOCTON PWS serve?
COSHOCTON PWS serves approximately 13,537 people, Ohio.
What type of water does COSHOCTON PWS provide?
COSHOCTON PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH1600012.
How does COSHOCTON PWS compare to other utilities in Ohio?
COSHOCTON PWS scores 28/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Ohio state page for a full comparison of water systems.