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Counties → South Carolina

Union County, South Carolina

Water Systems
9
Population Served
30,650
Total Violations
356
246 health-based
PFAS Detected
2
of 2 tested

Violation Analysis

88.9%
Systems with Violations
39.6
Avg Violations per System
69.1%
Health-Based Violations

Water Source Types

SW
9 systems (100%)

PFAS Contamination

2
Systems Tested
2
PFAS Detected
100.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Union South Carolina water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (8)

Violation history is cumulative — many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
UNION CITY OF (SC4410001) 11,873 16 Detected
MEANSVILLE RILEY W/D (SC4420001) 7,368 72 Detected
SANTUCK HEBRON WATER CO (4420007) 3,097 34 —
BROWNS CREEK W/D (SC4420002) 2,790 29 —
ROCKY CREEK W/D (SC4420003) 2,464 31 —
JONESVILLE TOWN OF (SC4410002) 1,917 16 —
LOCKHART TOWN OF (SC4420010) 560 100 —
CARLISLE TOWN OF (4410003) 555 58 —
PRIMO-WALMART 0629 (4480002) 26 0 —

Other Counties in South Carolina

Greenville County
45 systems · 498,460 served · 567 violations
Charleston County
74 systems · 480,067 served · 846 violations
Horry County
53 systems · 416,612 served · 307 violations
Richland County
77 systems · 361,654 served · 5,612 violations
Spartanburg County
29 systems · 318,077 served · 154 violations
Anderson County
40 systems · 206,616 served · 1,334 violations

Drinking Water Guides

Is Your Tap Water Safe?

How to interpret water quality reports and know when to take action.
PFAS: What You Need to Know

Health risks, EPA standards, and how to reduce PFAS exposure.
Check Your Water System

Step-by-step guide to finding and understanding your local water data.

Related Environmental Data

PlainEnviro
EPA toxic releases and pollution sources near water systems
PlainHealth
Cross-portal: mortality and health outcome data by state
PlainHazard
Natural disaster data affecting water infrastructure
PlainClimate
Climate and weather patterns impacting water supply

Frequently Asked Questions

How many water violations are in Union County? ▼
Union County has 356 total drinking water violations across 9 water systems, of which 246 are health-based violations. 88.9% of systems have at least one violation.
How many people get water from Union County systems? ▼
Water systems in Union County serve approximately 30,650 people through 9 public water systems.
Has PFAS been detected in Union County water? ▼
Of 2 water systems tested for PFAS in Union County, 2 had PFAS detected (100.0% detection rate).
What types of water sources supply Union County? ▼
Water systems in Union County use SW (9 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 69.1% of Union County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Where does this water quality data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and UCMR5 PFAS monitoring program. SDWIS tracks violations for all public water systems regulated under the Safe Drinking Water Act.

Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial