B74/100
COLUMBIA COUNTY — Water Quality Report 2026
Serving 124,763 people · Georgia
Water Source
Surface Water
County
—
System ID
GA0730000
Violations
8
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 214.58 µg/L | — | Above Goal |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
3
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2025 – March 31, 2025Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: 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 COUNTY
Is COLUMBIA COUNTY water safe to drink?
COLUMBIA COUNTY water receives a grade of B (74/100), 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 COLUMBIA COUNTY detected?
76 contaminants were tested in COLUMBIA COUNTY's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does COLUMBIA COUNTY have any EPA violations?
Yes, COLUMBIA COUNTY has 8 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, Other, MR. 3 are health-based violations.
How many people does COLUMBIA COUNTY serve?
COLUMBIA COUNTY serves approximately 124,763 people, Georgia. The system provides water to 1 community: Martinez.
What type of water does COLUMBIA COUNTY provide?
COLUMBIA COUNTY 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 GA0730000.
How does COLUMBIA COUNTY compare to other utilities in Georgia?
COLUMBIA COUNTY scores 74/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Georgia state page for a full comparison of water systems.