F0/100
COLUMBIA WATER CO — Water Quality Report 2026
Serving 25,200 people · Pennsylvania
Water Source
Surface Water
County
—
System ID
PA7360123
Violations
133
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 300.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2024 – April 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2023 – June 9, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Violation related to Consumer Confidence Report
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2023 – April 30, 2023Rule: Consumer Confidence 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 COLUMBIA WATER CO
Is COLUMBIA WATER CO water safe to drink?
COLUMBIA WATER CO water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 133 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has COLUMBIA WATER CO detected?
69 contaminants were tested in COLUMBIA WATER CO's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does COLUMBIA WATER CO have any EPA violations?
Yes, COLUMBIA WATER CO has 133 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, RPT, TT. 11 are health-based violations.
How many people does COLUMBIA WATER CO serve?
COLUMBIA WATER CO serves approximately 25,200 people, Pennsylvania.
What type of water does COLUMBIA WATER CO provide?
COLUMBIA 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 PA7360123.
How does COLUMBIA WATER CO compare to other utilities in Pennsylvania?
COLUMBIA WATER CO scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Pennsylvania state page for a full comparison of water systems.