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Community Water System · PWS SC3720001

Pioneer Rural Water Dist (Sc3720001)

Westminster, South Carolina 29693 - drinking water served from surface water sources to 17,121 people, tracked in EPA SDWIS and UCMR5.

17,121
People served
17
EPA violations
3
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 17 drinking-water violations at Pioneer Rural Water Dist (Sc3720001), 18% of them health-based - below the South Carolina per-system average.

17
Total EPA violations on record
18%
Health-based (MCL / treatment failure)
17,121
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pioneer Rural Water Dist (Sc3720001)

Pioneer Rural Water Dist (Sc3720001) is a local-owned community water system that delivers drinking water to 17,121 residents in Westminster, South Carolina (Oconee County) through 7,317 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 17 total violations for this system , of which 3 (18%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 14 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 4 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Pioneer Rural Water Dist (Sc3720001)'s 17 violations sit below 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.

Population Served
17,121
Total Violations
17
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
7,317
County
Oconee
School/Daycare
No
MCL Violations
3
Monitoring Violations
14
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 4 2013
Coliform (TCR) MR 4 1994
Coliform (TCR) MCL 3 2001
TTHM MR 2 2023
Total Haloacetic Acids (HAA5) MR 2 2023
Surface Water Treatment Rule MR 2 1994

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/14/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 8/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/14/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 8/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 8/14/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 8/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFMBA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 8/14/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/14/2023 <6.00 ppt 6.00 ppt Not Detected
PFHxS 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 8/14/2023 <8.00 ppt 8.00 ppt Not Detected
4:2 FTS 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 8/14/2023 <7.00 ppt 7.00 ppt Not Detected
PFBS 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/14/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/14/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/14/2023 <2.00 ppt 2.00 ppt Not Detected
9Cl-PF3ONS 5/30/2023 <2.00 ppt 2.00 ppt Not Detected
NMeFOSAA 5/30/2023 <6.00 ppt 6.00 ppt Not Detected
PFDA 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 5/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 5/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 5/30/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 5/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 5/30/2023 <8.00 ppt 8.00 ppt Not Detected
ADONA 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 5/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 5/30/2023 <7.00 ppt 7.00 ppt Not Detected
PFEESA 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 5/30/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/30/2023 <20.00 ppt 20.00 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 Pioneer Rural Water Dist (Sc3720001).

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 SC3720001 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
2023 TTHM MR 2 SDWIS / SC3720001 / 2950
2023 Total Haloacetic Acids (HAA5) MR 2 SDWIS / SC3720001 / 2456
2013 Lead and Copper Rule MR 4 SDWIS / SC3720001 / 5000
2001 Coliform (TCR) MCL 3 SDWIS / SC3720001 / 3100
1994 Coliform (TCR) MR 4 SDWIS / SC3720001 / 3100
1994 Surface Water Treatment Rule MR 2 SDWIS / SC3720001 / 0200

How Pioneer Rural Water Dist (Sc3720001) Compares

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

Metric Pioneer Rural Water Dist (Sc3720001) South Carolina avg Federal benchmark
Total violations 17 27.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 65.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 17,121 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 Pioneer Rural Water Dist (Sc3720001) water safe to drink? ▼
Pioneer Rural Water Dist (Sc3720001) (PWS ID: SC3720001) has 17 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 17,121 people using Surface Water sources.
How many people does Pioneer Rural Water Dist (Sc3720001) serve? ▼
Pioneer Rural Water Dist (Sc3720001) serves 17,121 people in Westminster, South Carolina. It is a Local-owned system using Surface Water water sources with 7,317 service connections.
What type of violations does Pioneer Rural Water Dist (Sc3720001) have? ▼
Pioneer Rural Water Dist (Sc3720001) has 17 total violations: 3 health-based violations (MCL exceedances or treatment failures), 14 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pioneer Rural Water Dist (Sc3720001) water? ▼
No. Pioneer Rural Water Dist (Sc3720001) was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Pioneer Rural Water Dist (Sc3720001) use? ▼
Pioneer Rural Water Dist (Sc3720001) uses Surface Water 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.

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

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.