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Transient Non-Community Water System · PWS RI2980312

D. B. Mart #9 Gulf Gas Station

Rocky Hill, Rhode Island 06067 - drinking water served from groundwater sources to 25 people, tracked in EPA SDWIS and UCMR5.

25
People served
185
EPA violations
86
Health-based
Untested
UCMR5 result

The verdict

EPA records 185 drinking-water violations at D. B. Mart #9 Gulf Gas Station, 46% of them health-based - above the Rhode Island per-system average.

185
Total EPA violations on record
46%
Health-based (MCL / treatment failure)
25
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: D. B. Mart #9 Gulf Gas Station

D. B. Mart #9 Gulf Gas Station is a private-owned transient non-community water system that delivers drinking water to 25 residents in Rocky Hill, Rhode Island (Providence County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 185 total violations for this system , of which 86 (46%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 90 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 Coliform (TCR), recorded in 67 violations (MCL, 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%).

D. B. Mart #9 Gulf Gas Station's 185 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.

Population Served
25
Total Violations
185
Health-Based Violations
86
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Providence
School/Daycare
No
MCL Violations
67
Monitoring Violations
90
Treatment Tech Violations
19

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 67 2016
Coliform (TCR) MR 58 2016
Groundwater Rule TT 19 2023
Nitrate MR 18 2015
E. COLI MR 5 2010
Groundwater Rule MR 5 2023
Revised Total Coliform Rule MON 4 2018
Groundwater Rule Other 3 2017
Public Notice Other 3 2016

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 D. B. Mart #9 Gulf Gas Station.

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 RI2980312 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

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 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 Groundwater Rule TT 19 SDWIS / RI2980312 / 0700
2023 Groundwater Rule MR 5 SDWIS / RI2980312 / 0700
2018 Revised Total Coliform Rule MON 4 SDWIS / RI2980312 / 8000
2017 Groundwater Rule Other 3 SDWIS / RI2980312 / 0700
2016 Coliform (TCR) MCL 67 SDWIS / RI2980312 / 3100
2016 Coliform (TCR) MR 58 SDWIS / RI2980312 / 3100
2016 Public Notice Other 3 SDWIS / RI2980312 / 7500
2015 Nitrate MR 18 SDWIS / RI2980312 / 1040
2010 E. COLI MR 5 SDWIS / RI2980312 / 3014

How D. B. Mart #9 Gulf Gas Station Compares

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

Metric D. B. Mart #9 Gulf Gas Station Rhode Island avg Federal benchmark
Total violations 185 72.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 86 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 25 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 D. B. Mart #9 Gulf Gas Station water safe to drink? ▼
D. B. Mart #9 Gulf Gas Station (PWS ID: RI2980312) has 185 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 25 people using Groundwater sources.
How many people does D. B. Mart #9 Gulf Gas Station serve? ▼
D. B. Mart #9 Gulf Gas Station serves 25 people in Rocky Hill, Rhode Island. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does D. B. Mart #9 Gulf Gas Station have? ▼
D. B. Mart #9 Gulf Gas Station has 185 total violations: 86 health-based violations (MCL exceedances or treatment failures), 90 monitoring/reporting violations, and 19 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in D. B. Mart #9 Gulf Gas Station water? ▼
No PFAS testing data is available for D. B. Mart #9 Gulf Gas Station under the EPA's UCMR5 monitoring program.
What water source does D. B. Mart #9 Gulf Gas Station use? ▼
D. B. Mart #9 Gulf Gas Station uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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. 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.