B73/100
Winnsboro Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 15,378 residents · South Carolina
What's In Winnsboro's Tap Water?
34
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.033 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.013 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2022 – November 1, 2022Enforcement: 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: September 1, 2022 – September 30, 2022Rule: Total Coliform 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
WINNSBORO TOWN OF (2010001)
Population Served
10,391
Water Source
Surface Water
System ID
SC2010001
MIDCOUNTY WATER DIST 1 (2020002)
Population Served
1,487
Water Source
Groundwater
System ID
SC2020002
MIDCOUNTY WATER DIST 2 (SC2020004)
Population Served
3,500
Water Source
Purchased Surface Water
System ID
SC2020004
Frequently Asked Questions About Winnsboro Water
Is Winnsboro tap water safe to drink?
Winnsboro, South Carolina tap water receives a grade of B (73/100), which is considered good. Out of 55 contaminants tested, 2 exceed EPA maximum contaminant levels (MCLs) and 3 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Winnsboro's water?
Of the 55 contaminants tested in Winnsboro's water supply, the most notable include PFOS, Copper (90th percentile), Lead (90th percentile). 2 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Winnsboro have any water quality violations?
Yes, Winnsboro has 26 EPA violation(s) on record, with the most recent in 2022. Violation types include Other, MON, TT. 7 of these are health-based violations, which are the most serious category.
Do I need a water filter in Winnsboro?
Based on EPA data, using a water filter in Winnsboro is recommended. 2 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 Winnsboro's tap water come from?
Winnsboro's drinking water is sourced from surface water and supplied by WINNSBORO TOWN OF (2010001) and 2 other water system(s). The system serves approximately 15,378 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Winnsboro'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. Winnsboro'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 Winnsboro's water compare to other cities in South Carolina?
Winnsboro's water quality score of 73/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our South Carolina state page to see how all cities in the state compare.
What should I do if I'm concerned about Winnsboro's water quality?
If you have concerns about Winnsboro'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 (WINNSBORO TOWN OF (2010001)) 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.