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Local water dashboard

Official source aggregation

Water quality in Winnsboro, SC 29180

A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Fairfield County.

1 reported benchmark flag
Primary matched system
Winnsboro Town Of (2010001)
Source water
Surface water + Groundwater
County
Fairfield County
Profile updated

At a glance

What the current records say

Hardness

Soft

12.3 PPM · 0.7 GPG

Compliance screen

No active flag

0 active health-based records

Lead 90th percentile

0.012 mg/L

80% of action level

Utility match

3 systems

Serves 10,391 people system-wide

Hardness meter

How hard is the water?

Soft

Estimated local hardness

USGS hardness classification scale

12.3 PPM

Soft
0–59Moderate
60–120Hard
121–180Very hard
181+

Parts per million

12.3

mg/L as CaCO₃ equivalent

Grains per gallon

0.7

1 GPG ≈ 17.1 PPM

What this means at home

At 12.3 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.

USGS sites used

14

Nearest site

42.4 mi

Observation range

Feb 3, 2016–Dec 18, 2023

Estimate confidence

Low

Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: FISHING CREEK AT HWY 5 BELOW YORK, SC (Stream).USGS source documentation ↗

Regional context

Is 29180 typical?

These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.

Winnsboro median

12 PPM

About the same

1 indexed ZIP readings · Range 12.3–12.3 PPM

South Carolina median

19 PPM

7 PPM lower

236 indexed ZIP readings · Range 4.2–106 PPM

EPA benchmark screen

Contaminant snapshot

Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.

1 pass1 fail

Lead (PB90)

0.012 mg/L

Reported Dec 31, 2025

Copper (CU90)

1.666 mg/L

Reported Jun 30, 2001

Numerical coverage

2 comparable results

Missing values remain blank; absence is not treated as a pass.

Lead (90th percentile)

Measured in mg/L

Pass

Local 0.012

EPA limit 0.015

Local level is 80% of the listed EPA limit.

Copper (90th percentile)

Measured in mg/L

Fail

Local 1.666

EPA limit 1.3

Local level is 128% of the listed EPA limit.

Share of EPA benchmark

100% line = listed limit

EPA SDWIS compliance

Reported violation history

Open EPA source documentation ↗
2026Q2
All records
2
Health-based
0
Active health-based
0
Contaminant or ruleSystemStatusPeriod
Consumer Confidence RuleSC2010001ResolvedOct 1, 2022through Nov 1, 2022
Revised Total Coliform RuleSC2010001ResolvedSep 1, 2022through Sep 30, 2022

No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.

Solutions matcher

Your personalized water action plan

Matched to Winnsboro ZIP 29180 using 12.3 PPM nearby hardness and 2 reported measurement benchmarks.

1 match

Drinking water protection

Under-Sink Reverse Osmosis System

Copper (90th percentile) has a measured benchmark flag or active health-based SDWIS record in this profile.

A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.

Explore under-sink filtration

Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.

Frequently asked

Water questions for Winnsboro

Is tap water safe in Winnsboro?+

EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.

How hard is the water?+

Nearby USGS observations produce an estimate of 12.3 PPM, or 0.7 grains per gallon, classified as soft. This is not a household tap measurement.

Do I need a water softener?+

There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.