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Community Water System · PWS SC4310501

Shaw Afb (Sc4310501)

Shaw Afb, South Carolina 29152 - drinking water served from groundwater sources to 5,125 people, tracked in EPA SDWIS and UCMR5.

5,125
People served
66
EPA violations
13
Health-based
4 PFAS
UCMR5 result

The verdict

EPA records 66 drinking-water violations at Shaw Afb (Sc4310501), 20% of them health-based - above the South Carolina per-system average, and UCMR5 testing detected 4 PFAS compounds.

66
Total EPA violations on record
20%
Health-based (MCL / treatment failure)
5,125
People served by this system
4
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Shaw Afb (Sc4310501)

Shaw Afb (Sc4310501) is a federal-owned community water system that delivers drinking water to 5,125 residents in Shaw Afb, South Carolina (Sumter County) through 982 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 66 total violations for this system , of which 13 (20%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 51 monitoring and reporting violations are on file. The most recent violation on record dates to 2010.

The most frequently cited contaminant at this system is Trichloroethylene, recorded in 9 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 4 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 19 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across South Carolina, EPA tracks 1,390 public water systems serving 4,709,324 people, with 38,355 cumulative violations and 9,705 health-based violations on record. About 65% of systems in the state carry at least one violation, and state-wide the average per system is 27.6 violations. Statewide, 107 of 164 UCMR5-tested systems have reported PFAS detections (65.2%).

Shaw Afb (Sc4310501)'s 66 violations sit above the South Carolina average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
5,125
Total Violations
66
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Federal
Connections
982
County
Sumter
School/Daycare
No
MCL Violations
11
Monitoring Violations
51
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Trichloroethylene MCL 9 2009
Benzene MR 6 1992
1,2-Dichloroethane MR 6 1992
Trichloroethylene MR 6 1992
1,1-Dichloroethylene MR 6 1992
1,1,1-Trichloroethane MR 6 1992
Vinyl chloride MR 6 1992
Carbon tetrachloride MR 6 1992
p-Dichlorobenzene MR 6 1992
Coliform (TCR) MCL 2 1995
Lead and Copper Rule MR 2 2001
Lead and Copper Rule TT 2 2000
Coliform (TCR) MR 1 2010

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 9 of 207 samples detected PFAS.

Contaminant Date Result MRL Status
PFOA 9/17/2025 <4.00 ppt 4.00 ppt Not Detected
ADONA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/17/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 9/17/2025 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 9/17/2025 <6.00 ppt 6.00 ppt Not Detected
PFDA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFOS 9/17/2025 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/17/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/17/2025 4.20 ppt 3.00 ppt Detected
PFHpA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFBA 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFMPA 9/17/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/17/2025 <20.00 ppt 20.00 ppt Not Detected
PFPeS 9/17/2025 <4.00 ppt 4.00 ppt Not Detected
PFTA 9/17/2025 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 9/17/2025 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFOA 9/17/2025 6.10 ppt 4.00 ppt Detected
HFPO-DA 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
ADONA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/17/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 9/17/2025 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/17/2025 4.50 ppt 3.00 ppt Detected
PFBA 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFDA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/17/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/17/2025 6.20 ppt 4.00 ppt Detected
PFHxS 9/17/2025 19.00 ppt 3.00 ppt Detected
PFBS 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpA 9/17/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/17/2025 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 9/17/2025 <6.00 ppt 6.00 ppt Not Detected
PFTrDA 9/17/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 9/17/2025 <8.00 ppt 8.00 ppt Not Detected
PFHpS 9/17/2025 <3.00 ppt 3.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Shaw Afb (Sc4310501).

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID SC4310501 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

South Carolina Drinking Water Authority

South Carolina's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find SC regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2010 Coliform (TCR) MR 1 SDWIS / SC4310501 / 3100
2009 Trichloroethylene MCL 9 SDWIS / SC4310501 / 2984
2001 Lead and Copper Rule MR 2 SDWIS / SC4310501 / 5000
2000 Lead and Copper Rule TT 2 SDWIS / SC4310501 / 5000
1995 Coliform (TCR) MCL 2 SDWIS / SC4310501 / 3100
1992 Benzene MR 6 SDWIS / SC4310501 / 2990
1992 1,2-Dichloroethane MR 6 SDWIS / SC4310501 / 2980
1992 Trichloroethylene MR 6 SDWIS / SC4310501 / 2984
1992 1,1-Dichloroethylene MR 6 SDWIS / SC4310501 / 2977
1992 1,1,1-Trichloroethane MR 6 SDWIS / SC4310501 / 2981
1992 Vinyl chloride MR 6 SDWIS / SC4310501 / 2976
1992 Carbon tetrachloride MR 6 SDWIS / SC4310501 / 2982
1992 p-Dichlorobenzene MR 6 SDWIS / SC4310501 / 2969

How Shaw Afb (Sc4310501) Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Shaw Afb (Sc4310501) South Carolina avg Federal benchmark
Total violations 66 27.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 13 7 Indicates a contaminant exceeded a federal MCL
PFAS detection 4 compounds 65.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 5,125 3,388 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,390 regulated public water systems in South Carolina.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Shaw Afb (Sc4310501) water safe to drink?
Shaw Afb (Sc4310501) (PWS ID: SC4310501) has 66 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 4 PFAS compounds found. This system serves 5,125 people using Groundwater sources.
How many people does Shaw Afb (Sc4310501) serve?
Shaw Afb (Sc4310501) serves 5,125 people in Shaw Afb, South Carolina. It is a Federal-owned system using Groundwater water sources with 982 service connections.
What type of violations does Shaw Afb (Sc4310501) have?
Shaw Afb (Sc4310501) has 66 total violations: 13 health-based violations (MCL exceedances or treatment failures), 51 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Shaw Afb (Sc4310501) water?
Yes. UCMR5 testing detected 4 PFAS compounds in Shaw Afb (Sc4310501)'s water supply: PFHxS, PFOA, PFHxA, PFOS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Shaw Afb (Sc4310501) use?
Shaw Afb (Sc4310501) uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.