PlainWater

Transient Non-Community Water System · PWS RI2980275

Foster Xtra Mart

Columbus, Rhode Island 43215 - drinking water served from groundwater sources to 220 people, tracked in EPA SDWIS and UCMR5.

220
People served
292
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 292 drinking-water violations at Foster Xtra Mart - above the Rhode Island per-system average.

292
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
220
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Foster Xtra Mart

Foster Xtra Mart is a private-owned transient non-community water system that delivers drinking water to 220 residents in Columbus, Rhode Island (Providence County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 292 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 281 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 p-Dichlorobenzene, recorded in 13 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 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%).

Foster Xtra Mart's 292 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
220
Total Violations
292
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
2
County
Providence
School/Daycare
No
MCL Violations
0
Monitoring Violations
281
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
p-Dichlorobenzene MR 13 2024
Vinyl chloride MR 13 2024
1,1-Dichloroethylene MR 13 2024
trans-1,2-Dichloroethylene MR 13 2024
1,1,2-Trichloroethane MR 13 2024
CHLOROBENZENE MR 13 2024
Benzene MR 13 2024
Toluene MR 13 2024
Ethylbenzene MR 13 2024
1,2,4-Trichlorobenzene MR 13 2024
cis-1,2-Dichloroethylene MR 13 2024
DICHLOROMETHANE MR 13 2024
o-Dichlorobenzene MR 13 2024
1,2-Dichloropropane MR 13 2024
Trichloroethylene MR 13 2024
Tetrachloroethylene MR 13 2024
Styrene MR 13 2024
Xylenes, Total MR 13 2024
1,2-Dichloroethane MR 13 2024
1,1,1-Trichloroethane MR 13 2024
Carbon tetrachloride MR 13 2024
Revised Total Coliform Rule RPT 11 2025
Revised Total Coliform Rule MON 5 2019
Nitrate MR 3 2024

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 Foster Xtra Mart.

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 RI2980275 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
2025 Revised Total Coliform Rule RPT 11 SDWIS / RI2980275 / 8000
2024 p-Dichlorobenzene MR 13 SDWIS / RI2980275 / 2969
2024 Vinyl chloride MR 13 SDWIS / RI2980275 / 2976
2024 1,1-Dichloroethylene MR 13 SDWIS / RI2980275 / 2977
2024 trans-1,2-Dichloroethylene MR 13 SDWIS / RI2980275 / 2979
2024 1,1,2-Trichloroethane MR 13 SDWIS / RI2980275 / 2985
2024 CHLOROBENZENE MR 13 SDWIS / RI2980275 / 2989
2024 Benzene MR 13 SDWIS / RI2980275 / 2990
2024 Toluene MR 13 SDWIS / RI2980275 / 2991
2024 Ethylbenzene MR 13 SDWIS / RI2980275 / 2992
2024 1,2,4-Trichlorobenzene MR 13 SDWIS / RI2980275 / 2378
2024 cis-1,2-Dichloroethylene MR 13 SDWIS / RI2980275 / 2380
2024 DICHLOROMETHANE MR 13 SDWIS / RI2980275 / 2964
2024 o-Dichlorobenzene MR 13 SDWIS / RI2980275 / 2968
2024 1,2-Dichloropropane MR 13 SDWIS / RI2980275 / 2983

How Foster Xtra Mart Compares

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

Metric Foster Xtra Mart Rhode Island avg Federal benchmark
Total violations 292 72.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 220 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 Foster Xtra Mart water safe to drink?
Foster Xtra Mart (PWS ID: RI2980275) has 292 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 220 people using Groundwater sources.
How many people does Foster Xtra Mart serve?
Foster Xtra Mart serves 220 people in Columbus, Rhode Island. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does Foster Xtra Mart have?
Foster Xtra Mart has 292 total violations: 0 health-based violations (MCL exceedances or treatment failures), 281 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Foster Xtra Mart water?
No PFAS testing data is available for Foster Xtra Mart under the EPA's UCMR5 monitoring program.
What water source does Foster Xtra Mart use?
Foster Xtra Mart 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.
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.