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Counties → South Carolina

Sumter County, South Carolina

Water Systems
24
Population Served
84,388
Total Violations
1,103
206 health-based
PFAS Detected
3
of 4 tested

Violation Analysis

87.5%
Systems with Violations
46.0
Avg Violations per System
18.7%
Health-Based Violations

Water Source Types

GW
24 systems (100%)

PFAS Contamination

4
Systems Tested
3
PFAS Detected
75.0%
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

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

No violations on record (3) One or more violations (21)

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
SUMTER CITY OF (SC4310001) 53,070 7 Detected
HIGH HILLS RURAL WATER CO INC (4320003) 12,545 38 Detected
SHAW AFB (SC4310501) 5,125 66 Detected
DALZELL WATER DISTRICT (SC4320001) 3,912 21 Clean
OSWEGO RURAL WATER CO (SC4320006) 3,282 6 —
SUMTER CO-WEDGEFIELD-STATEBURG WD 1,200 115 —
BGWC OAKLAND PLANTATION (SC4350006) 1,180 434 —
MAYESVILLE TOWN OF (SC4310003) 665 12 —
SHILOH WATER SYSTEM (SC4320005) 645 4 —
PINEWOOD TOWN OF (SC4310002) 455 24 —
SUMTER-WESSEX S/D (SC4350016) 412 73 —
BGWC POCALLA DEVELOPMENT (SC4350007) 327 0 —
HIBISCUS HOMES (SC4360037) 280 27 —
CRESCENT MHP (SC4360011) 259 76 —
SHAW MOBILE HOME PARK (SC4360012) 173 40 —
GRANADA SUBDIVISION (SC4350008) 150 18 —
GOODWILL HEADSTART (SC4370119) 150 30 —
POINSETT STATE PARK CAMP (SC4370601) 142 17 —
CEDAR HILL MHP (SC4360010) 128 17 —
CAMP BURNT GIN (4370675) 120 7 —
WHISPERING PINES MHP (SC4360021) 80 48 —
QUAIL HOLLOW S/D (SC4350014) 36 23 —
PRIMO-WALMART 5383 (4380008) 26 0 —
PRIMO-WALMART 377 (SC4380009) 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 Sumter County? ▼
Sumter County has 1,103 total drinking water violations across 24 water systems, of which 206 are health-based violations. 87.5% of systems have at least one violation.
How many people get water from Sumter County systems? ▼
Water systems in Sumter County serve approximately 84,388 people through 24 public water systems.
Has PFAS been detected in Sumter County water? ▼
Of 4 water systems tested for PFAS in Sumter County, 3 had PFAS detected (75.0% detection rate).
What types of water sources supply Sumter County? ▼
Water systems in Sumter County use GW (24 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. 18.7% of Sumter 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