UPPER CALHOUN/SANDY RUN (SC0920002)
PWS ID: SC0920002 · GASTON, South Carolina 29053
UPPER CALHOUN/SANDY RUN (SC0920002) serves 1,247 people in GASTON, South Carolina using Groundwater water sources. It has 34 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.
Water Quality Snapshot: UPPER CALHOUN/SANDY RUN (SC0920002)
UPPER CALHOUN/SANDY RUN (SC0920002) is a local-owned community water system that delivers drinking water to 1,247 residents in GASTON, South Carolina (Calhoun County) through 611 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 34 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.
The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 4 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.
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. UPPER CALHOUN/SANDY RUN (SC0920002)'s 34 violations sit above the South Carolina average. Statewide, 107 of 164 UCMR5-tested systems have reported PFAS detections (65.2%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 611
- County
- Calhoun
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 33
- 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 | 3 | 2012 |
| E. COLI | MR | 3 | 2025 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 1 | 2010 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 1991 |
| Styrene | MR | 1 | 1991 |
| 1,1-Dichloroethylene | MR | 1 | 1991 |
| Toluene | MR | 1 | 1991 |
| 1,2,4-Trichlorobenzene | MR | 1 | 1991 |
| p-Dichlorobenzene | MR | 1 | 1991 |
| cis-1,2-Dichloroethylene | MR | 1 | 1991 |
| Trichloroethylene | MR | 1 | 1991 |
| o-Dichlorobenzene | MR | 1 | 1991 |
| Ethylbenzene | MR | 1 | 1991 |
| 1,2-Dichloroethane | MR | 1 | 1991 |
| trans-1,2-Dichloroethylene | MR | 1 | 1991 |
| 1,1,2-Trichloroethane | MR | 1 | 1991 |
| CHLOROBENZENE | MR | 1 | 1991 |
| Tetrachloroethylene | MR | 1 | 1991 |
| 1,2-Dichloropropane | MR | 1 | 1991 |
| DICHLOROMETHANE | MR | 1 | 1991 |
| ETHYLENE DIBROMIDE | MR | 1 | 1991 |
| 1,1,1-Trichloroethane | MR | 1 | 1991 |
| Vinyl chloride | MR | 1 | 1991 |
| Carbon tetrachloride | MR | 1 | 1991 |
| Benzene | MR | 1 | 1991 |
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 UPPER CALHOUN/SANDY RUN (SC0920002).
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 SC0920002 on SDWISSource: EPA SDWIS Federal Reports Search
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 SDWISViolation 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 |
|---|---|---|---|---|
| 2025 | E. COLI | MR | 3 | SDWIS / SC0920002 / 3014 |
| 2013 | Lead and Copper Rule | MR | 4 | SDWIS / SC0920002 / 5000 |
| 2012 | Coliform (TCR) | MR | 3 | SDWIS / SC0920002 / 3100 |
| 2010 | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 1 | SDWIS / SC0920002 / 0600 |
| 1991 | 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | SDWIS / SC0920002 / 2931 |
| 1991 | Styrene | MR | 1 | SDWIS / SC0920002 / 2996 |
| 1991 | 1,1-Dichloroethylene | MR | 1 | SDWIS / SC0920002 / 2977 |
| 1991 | Toluene | MR | 1 | SDWIS / SC0920002 / 2991 |
| 1991 | 1,2,4-Trichlorobenzene | MR | 1 | SDWIS / SC0920002 / 2378 |
| 1991 | p-Dichlorobenzene | MR | 1 | SDWIS / SC0920002 / 2969 |
| 1991 | cis-1,2-Dichloroethylene | MR | 1 | SDWIS / SC0920002 / 2380 |
| 1991 | Trichloroethylene | MR | 1 | SDWIS / SC0920002 / 2984 |
| 1991 | o-Dichlorobenzene | MR | 1 | SDWIS / SC0920002 / 2968 |
| 1991 | Ethylbenzene | MR | 1 | SDWIS / SC0920002 / 2992 |
| 1991 | 1,2-Dichloroethane | MR | 1 | SDWIS / SC0920002 / 2980 |
How UPPER CALHOUN/SANDY RUN (SC0920002) Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | UPPER CALHOUN/SANDY RUN (SC0920002) | South Carolina avg | Federal benchmark |
|---|---|---|---|
| Total violations | 34 | 27.6 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 0 | 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 | 1,247 | 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 |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
Is UPPER CALHOUN/SANDY RUN (SC0920002) water safe to drink? ▼
How many people does UPPER CALHOUN/SANDY RUN (SC0920002) serve? ▼
What type of violations does UPPER CALHOUN/SANDY RUN (SC0920002) have? ▼
Has PFAS been detected in UPPER CALHOUN/SANDY RUN (SC0920002) water? ▼
What water source does UPPER CALHOUN/SANDY RUN (SC0920002) use? ▼
Where does this data come from? ▼
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Related Data for South Carolina
Read our methodology — how this data is sourced, computed, and verified.