F18/100
Colfax Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,896 residents · Louisiana
What's In Colfax's Tap Water?
2
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.30 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
12
Violations (last 5yr)
4
Unresolved
12
Health-Related
TIER 2Resolved
Violation related to Consumer Confidence Report
When: March 10, 2025 – July 21, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: March 10, 2025 – July 21, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: March 10, 2025 – July 21, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: March 10, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: September 5, 2022Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: September 5, 2022Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Resolved
Violation related to Consumer Confidence Report
When: September 5, 2022 – November 19, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: September 5, 2022 – January 30, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Unresolved
Violation related to Consumer Confidence Report
When: September 5, 2022Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Resolved
Violation related to Consumer Confidence Report
When: September 5, 2022 – January 22, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: September 5, 2022 – January 30, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: September 5, 2022 – November 19, 2024Rule: 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
Water Utility Details
ZONE 2 WATER SYSTEM INC.
Population Served
1,344
Water Source
Groundwater
System ID
LA1043001
TOWN OF COLFAX
Population Served
2,552
Water Source
Groundwater
System ID
LA1043002
Frequently Asked Questions About Colfax Water
Is Colfax tap water safe to drink?
Colfax, Louisiana tap water receives a grade of F (18/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 42 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Colfax's water?
Of the 2 contaminants tested in Colfax's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Colfax have any water quality violations?
Yes, Colfax has 42 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, Other, MR. 28 of these are health-based violations, which are the most serious category.
Do I need a water filter in Colfax?
Based on EPA data, using a water filter in Colfax is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Colfax's tap water come from?
Colfax's drinking water is sourced from groundwater and supplied by ZONE 2 WATER SYSTEM INC. and 1 other water system(s). The system serves approximately 3,896 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Colfax's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Colfax's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Colfax's water compare to other cities in Louisiana?
Colfax's water quality score of 18/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Louisiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Colfax's water quality?
If you have concerns about Colfax's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (ZONE 2 WATER SYSTEM INC.) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.