Community Water System · PWS RI2980487
South Trail Commerce
Saunderstown, Rhode Island 02874 - drinking water served from groundwater sources to 175 people, tracked in EPA SDWIS and UCMR5.
- 175
- People served
- 183
- EPA violations
- 9
- Health-based
- Untested
- UCMR5 result
The verdict
EPA records 183 drinking-water violations at South Trail Commerce, 5% of them health-based - above the Rhode Island per-system average.
- 183
- Total EPA violations on record
- 5%
- Health-based (MCL / treatment failure)
- 175
- People served by this system
- N/A
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: South Trail Commerce
South Trail Commerce is a private-owned community water system that delivers drinking water to 175 residents in Saunderstown, Rhode Island (Washington County) through 11 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 183 total violations for this system , of which 9 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 162 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 Revised Total Coliform Rule, recorded in 9 violations (TT, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.
Across Rhode Island, EPA tracks 463 public water systems serving 1,159,492 people, with 33,766 cumulative violations and 8,949 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 72.9 violations. Statewide, 15 of 29 UCMR5-tested systems have reported PFAS detections (51.7%).
South Trail Commerce's 183 violations sit above the Rhode Island average.
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
- Private
- Connections
- 11
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 162
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | TT | 9 | 2024 |
| Public Notice | Other | 9 | 2025 |
| Aldicarb sulfoxide | MR | 6 | 2023 |
| Aldicarb sulfone | MR | 6 | 2023 |
| Carbofuran | MR | 6 | 2023 |
| Aldicarb | MR | 6 | 2023 |
| OXAMYL | MR | 6 | 2023 |
| Endrin | MR | 3 | 2023 |
| Picloram | MR | 3 | 2023 |
| Atrazine | MR | 3 | 2023 |
| Heptachlor epoxide | MR | 3 | 2023 |
| 2,4-D | MR | 3 | 2023 |
| 2,4,5-TP | MR | 3 | 2023 |
| HEXACHLOROBENZENE | MR | 3 | 2023 |
| Benzo(a)pyrene | MR | 3 | 2023 |
| Pentachlorophenol | MR | 3 | 2023 |
| Methoxychlor | MR | 3 | 2023 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2023 |
| Chlordane | MR | 3 | 2023 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2023 |
| cis-1,2-Dichloroethylene | MR | 3 | 2023 |
| o-Dichlorobenzene | MR | 3 | 2023 |
| 1,1-Dichloroethylene | MR | 3 | 2023 |
| trans-1,2-Dichloroethylene | MR | 3 | 2023 |
| 1,1,1-Trichloroethane | MR | 3 | 2023 |
| 1,2-Dichloropropane | MR | 3 | 2023 |
| Trichloroethylene | MR | 3 | 2023 |
| Dalapon | MR | 3 | 2023 |
| 1,1,2-Trichloroethane | MR | 3 | 2023 |
| Tetrachloroethylene | MR | 3 | 2023 |
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 South Trail Commerce.
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 RI2980487 on SDWISSource: EPA SDWIS Federal Reports Search
Rhode Island Drinking Water Authority
Rhode Island'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 RI 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 | Public Notice | Other | 9 | SDWIS / RI2980487 / 7500 |
| 2024 | Revised Total Coliform Rule | TT | 9 | SDWIS / RI2980487 / 8000 |
| 2024 | Consumer Confidence Rule | Other | 3 | SDWIS / RI2980487 / 7000 |
| 2023 | Aldicarb sulfoxide | MR | 6 | SDWIS / RI2980487 / 2043 |
| 2023 | Aldicarb sulfone | MR | 6 | SDWIS / RI2980487 / 2044 |
| 2023 | Carbofuran | MR | 6 | SDWIS / RI2980487 / 2046 |
| 2023 | Aldicarb | MR | 6 | SDWIS / RI2980487 / 2047 |
| 2023 | OXAMYL | MR | 6 | SDWIS / RI2980487 / 2036 |
| 2023 | Endrin | MR | 3 | SDWIS / RI2980487 / 2005 |
| 2023 | Picloram | MR | 3 | SDWIS / RI2980487 / 2040 |
| 2023 | Atrazine | MR | 3 | SDWIS / RI2980487 / 2050 |
| 2023 | Heptachlor epoxide | MR | 3 | SDWIS / RI2980487 / 2067 |
| 2023 | 2,4-D | MR | 3 | SDWIS / RI2980487 / 2105 |
| 2023 | 2,4,5-TP | MR | 3 | SDWIS / RI2980487 / 2110 |
| 2023 | HEXACHLOROBENZENE | MR | 3 | SDWIS / RI2980487 / 2274 |
How South Trail Commerce Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | South Trail Commerce | Rhode Island avg | Federal benchmark |
|---|---|---|---|
| Total violations | 183 | 72.9 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 9 | 19.3 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 51.7% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 175 | 2,504 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 463 regulated public water systems in Rhode Island.
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 South Trail Commerce water safe to drink? ▼
How many people does South Trail Commerce serve? ▼
What type of violations does South Trail Commerce have? ▼
Has PFAS been detected in South Trail Commerce water? ▼
What water source does South Trail Commerce use? ▼
Where does this data come from? ▼
Read our methodology - how this data is sourced, computed, and verified.
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.