Rhode Island · drinking water · SDWIS through latest publish

South Trail Commerce Water Quality — Saunderstown, Rhode Island

PWSID RI2980487 · GroundwaterPrivate

175 people served. 4 health-based SDWIS violations recorded in the past 5 years. 1 remains unresolved. Last cited 1 year ago.

ALL SDWIS VIOLATIONS · 20232026 (annual count)
Bar chart of annual values from 2023 to 2026, in violations. Most recent year (2026): 0 violations.117 violations'23'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 8000

Unresolved Revised Total Coliform Rule violation cited in 2024 (contaminant 8000).

EPA SDWIS record

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 8000

Revised Total Coliform Rule health-based violation cited in 2024 (contaminant 8000).

EPA SDWIS record

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 8000

Revised Total Coliform Rule health-based violation cited in 2024 (contaminant 8000).

EPA SDWIS record

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 8000

Revised Total Coliform Rule health-based violation cited in 2024 (contaminant 8000).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 75004 citations
  • Contaminant 80004 citations
  • Contaminant 20433 citations
  • Contaminant 20443 citations
  • Contaminant 20463 citations
  • Contaminant 20473 citations
Violation history

What's On The SDWIS Record

Health-based violations exceed an MCL or treatment-technique standard. Monitoring violations are reporting failures with no measured exceedance — they tell you the system isn't fully transparent, not that the water is unsafe today.

OTHER · CONTAMINANT 7500

2025 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7500

2025 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7500

2025 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7500

2025 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7000

2024 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

OTHER · CONTAMINANT 7000

2024 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

HEALTH-BASED · CONTAMINANT 8000

2024 · Contaminant 8000 · Revised Total Coliform Rule

Treatment technique violation; returned to compliance

CONTAMINANT CODE 8000

HEALTH-BASED · CONTAMINANT 8000

2024 · Contaminant 8000 · Revised Total Coliform Rule

Treatment technique violation; returned to compliance

CONTAMINANT CODE 8000

HEALTH-BASED · CONTAMINANT 8000

2024 · Contaminant 8000 · Revised Total Coliform Rule

Treatment technique violation; returned to compliance

CONTAMINANT CODE 8000

HEALTH-BASED · CONTAMINANT 8000UNRESOLVED

2024 · Contaminant 8000 · Revised Total Coliform Rule

Treatment technique violation

CONTAMINANT CODE 8000

MONITORING · ENDRIN

2023 · Endrin · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2005

MONITORING · ENDRIN

2023 · Endrin · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2005

MONITORING · CONTAMINANT 2040

2023 · Contaminant 2040 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2040

MONITORING · CONTAMINANT 2040

2023 · Contaminant 2040 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2040

MONITORING · CONTAMINANT 2041

2023 · Contaminant 2041 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2041

MONITORING · CONTAMINANT 2041

2023 · Contaminant 2041 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2041

MONITORING · CONTAMINANT 2042

2023 · Contaminant 2042 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2042

MONITORING · CONTAMINANT 2042

2023 · Contaminant 2042 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2042

MONITORING · CONTAMINANT 2043

2023 · Contaminant 2043 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2043

MONITORING · CONTAMINANT 2043

2023 · Contaminant 2043 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2043

MONITORING · CONTAMINANT 2044

2023 · Contaminant 2044 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2044

MONITORING · CONTAMINANT 2044

2023 · Contaminant 2044 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2044

MONITORING · CONTAMINANT 2046

2023 · Contaminant 2046 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2046

MONITORING · CONTAMINANT 2046

2023 · Contaminant 2046 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2046

MONITORING · CONTAMINANT 2047

2023 · Contaminant 2047 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2047

MONITORING · CONTAMINANT 2047

2023 · Contaminant 2047 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2047

MONITORING · 2,4-D

2023 · 2,4-D · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2050

MONITORING · 2,4-D

2023 · 2,4-D · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2050

MONITORING · CONTAMINANT 2051

2023 · Contaminant 2051 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2051

MONITORING · CONTAMINANT 2051

2023 · Contaminant 2051 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2051

MONITORING · 2,4,5-TP (SILVEX)

2023 · 2,4,5-TP (Silvex) · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2065

MONITORING · 2,4,5-TP (SILVEX)

2023 · 2,4,5-TP (Silvex) · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2065

MONITORING · LINDANE

2023 · Lindane · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2010

MONITORING · LINDANE

2023 · Lindane · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2010

MONITORING · CONTAMINANT 2067

2023 · Contaminant 2067 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2067

MONITORING · CONTAMINANT 2067

2023 · Contaminant 2067 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2067

MONITORING · ALACHLOR

2023 · Alachlor · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2105

MONITORING · ALACHLOR

2023 · Alachlor · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2105

MONITORING · ATRAZINE

2023 · Atrazine · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2110

MONITORING · ATRAZINE

2023 · Atrazine · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2110

MONITORING · CONTAMINANT 2274

2023 · Contaminant 2274 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2274

MONITORING · CONTAMINANT 2274

2023 · Contaminant 2274 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2274

MONITORING · CARBOFURAN

2023 · Carbofuran · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2306

MONITORING · CARBOFURAN

2023 · Carbofuran · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2306

MONITORING · CONTAMINANT 2326

2023 · Contaminant 2326 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2326

MONITORING · CONTAMINANT 2326

2023 · Contaminant 2326 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2326

MONITORING · VINYL CHLORIDE

2023 · Vinyl chloride · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2388

MONITORING · VINYL CHLORIDE

2023 · Vinyl chloride · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2388

MONITORING · CONTAMINANT 2390

2023 · Contaminant 2390 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2390

MONITORING · CONTAMINANT 2390

2023 · Contaminant 2390 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2390

MONITORING · CONTAMINANT 2392

2023 · Contaminant 2392 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2392

MONITORING · CONTAMINANT 2392

2023 · Contaminant 2392 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2392

MONITORING · CONTAMINANT 2394

2023 · Contaminant 2394 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2394

MONITORING · CONTAMINANT 2394

2023 · Contaminant 2394 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2394

MONITORING · METHOXYCHLOR

2023 · Methoxychlor · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2015

MONITORING · METHOXYCHLOR

2023 · Methoxychlor · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2015

MONITORING · CONTAMINANT 2396

2023 · Contaminant 2396 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2396

MONITORING · CONTAMINANT 2396

2023 · Contaminant 2396 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2396

MONITORING · CONTAMINANT 2398

2023 · Contaminant 2398 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2398

MONITORING · CONTAMINANT 2398

2023 · Contaminant 2398 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2398

MONITORING · CONTAMINANT 2400

2023 · Contaminant 2400 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2400

MONITORING · CONTAMINANT 2400

2023 · Contaminant 2400 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2400

MONITORING · CONTAMINANT 2931

2023 · Contaminant 2931 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2931

MONITORING · CONTAMINANT 2931

2023 · Contaminant 2931 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2931

MONITORING · CONTAMINANT 2946

2023 · Contaminant 2946 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2946

MONITORING · CONTAMINANT 2946

2023 · Contaminant 2946 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2946

MONITORING · CONTAMINANT 2959

2023 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2959

MONITORING · CONTAMINANT 2959

2023 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2959

MONITORING · XYLENES (TOTAL)

2023 · Xylenes (total) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2378

MONITORING · XYLENES (TOTAL)

2023 · Xylenes (total) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2378

MONITORING · BENZENE

2023 · Benzene · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2380

MONITORING · BENZENE

2023 · Benzene · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2380

MONITORING · CONTAMINANT 2955

2023 · Contaminant 2955 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2955

MONITORING · CONTAMINANT 2955

2023 · Contaminant 2955 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2955

MONITORING · CONTAMINANT 2964

2023 · Contaminant 2964 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2964

MONITORING · CONTAMINANT 2964

2023 · Contaminant 2964 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2964

MONITORING · TOXAPHENE

2023 · Toxaphene · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2020

MONITORING · TOXAPHENE

2023 · Toxaphene · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2020

MONITORING · CONTAMINANT 2968

2023 · Contaminant 2968 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2968

MONITORING · CONTAMINANT 2968

2023 · Contaminant 2968 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2968

MONITORING · CONTAMINANT 2969

2023 · Contaminant 2969 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2969

MONITORING · CONTAMINANT 2969

2023 · Contaminant 2969 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2969

MONITORING · CONTAMINANT 2976

2023 · Contaminant 2976 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2976

MONITORING · CONTAMINANT 2976

2023 · Contaminant 2976 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2976

MONITORING · CONTAMINANT 2977

2023 · Contaminant 2977 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2977

MONITORING · CONTAMINANT 2977

2023 · Contaminant 2977 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2977

MONITORING · CONTAMINANT 2979

2023 · Contaminant 2979 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2979

MONITORING · CONTAMINANT 2979

2023 · Contaminant 2979 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2979

MONITORING · METHYL TERT-BUTYL ETHER (MTBE)

2023 · Methyl tert-butyl ether (MTBE) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2980

MONITORING · METHYL TERT-BUTYL ETHER (MTBE)

2023 · Methyl tert-butyl ether (MTBE) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2980

MONITORING · CONTAMINANT 2981

2023 · Contaminant 2981 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2981

MONITORING · CONTAMINANT 2981

2023 · Contaminant 2981 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2981

MONITORING · CONTAMINANT 2982

2023 · Contaminant 2982 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2982

MONITORING · CONTAMINANT 2982

2023 · Contaminant 2982 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2982

MONITORING · CONTAMINANT 2983

2023 · Contaminant 2983 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2983

MONITORING · CONTAMINANT 2983

2023 · Contaminant 2983 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2983

MONITORING · CONTAMINANT 2984

2023 · Contaminant 2984 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2984

MONITORING · CONTAMINANT 2984

2023 · Contaminant 2984 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2984

MONITORING · CONTAMINANT 2031

2023 · Contaminant 2031 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2031

MONITORING · CONTAMINANT 2031

2023 · Contaminant 2031 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2031

MONITORING · CONTAMINANT 2985

2023 · Contaminant 2985 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2985

MONITORING · CONTAMINANT 2985

2023 · Contaminant 2985 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2985

MONITORING · CONTAMINANT 2987

2023 · Contaminant 2987 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2987

MONITORING · CONTAMINANT 2987

2023 · Contaminant 2987 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2987

MONITORING · CONTAMINANT 2989

2023 · Contaminant 2989 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2989

MONITORING · CONTAMINANT 2989

2023 · Contaminant 2989 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2989

MONITORING · CONTAMINANT 2990

2023 · Contaminant 2990 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2990

MONITORING · CONTAMINANT 2990

2023 · Contaminant 2990 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2990

MONITORING · CONTAMINANT 2991

2023 · Contaminant 2991 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2991

MONITORING · CONTAMINANT 2991

2023 · Contaminant 2991 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2991

MONITORING · CONTAMINANT 2992

2023 · Contaminant 2992 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2992

MONITORING · CONTAMINANT 2992

2023 · Contaminant 2992 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2992

MONITORING · CONTAMINANT 2996

2023 · Contaminant 2996 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2996

MONITORING · CONTAMINANT 2996

2023 · Contaminant 2996 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2996

MONITORING · CONTAMINANT 2036

2023 · Contaminant 2036 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2036

MONITORING · CONTAMINANT 2043

2023 · Contaminant 2043 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2043

MONITORING · CONTAMINANT 2044

2023 · Contaminant 2044 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2044

MONITORING · CONTAMINANT 2035

2023 · Contaminant 2035 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2035

MONITORING · CONTAMINANT 2035

2023 · Contaminant 2035 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2035

MONITORING · CONTAMINANT 2046

2023 · Contaminant 2046 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2046

MONITORING · CONTAMINANT 2047

2023 · Contaminant 2047 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2047

MONITORING · CONTAMINANT 2036

2023 · Contaminant 2036 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2036

MONITORING · CONTAMINANT 2036

2023 · Contaminant 2036 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2036

MONITORING · CONTAMINANT 2037

2023 · Contaminant 2037 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2037

MONITORING · CONTAMINANT 2037

2023 · Contaminant 2037 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2037

MONITORING · CONTAMINANT 2039

2023 · Contaminant 2039 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2039

MONITORING · CONTAMINANT 2039

2023 · Contaminant 2039 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2039

Equity context · ACS 2018-2022 · USEPA-clone EJ disparity

Who Drinks This Water

Washington County, Rhode Island (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 129,998. Local disparity score for pm2.5 (fine particulate) sits well below the reference (1). Why we surface this →

POPULATION SHARE
7.9%

Low-income

POPULATION SHARE
10.0%

People of color

POPULATION SHARE
4.4%

Under age 5

POPULATION SHARE
21.9%

Over age 64

NATIONAL PERCENTILE · vs all US block groups (population-weighted; ranked against the national EJScreen indicator distribution)

  • PM2.5 (fine particulate)Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.2below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.68above the national median
  • Nitrogen dioxide (NO₂)Health riskA tailpipe and combustion gas. Concentrates near busy roads and industrial sites; raises risk of airway inflammation, asthma, and lower respiratory infections in children.3below the national median
  • Diesel particulateHealth riskSoot from diesel engines (trucks, trains, ports, construction). EPA classifies it as a likely human carcinogen and a major driver of childhood asthma near freight corridors.21below the national median
  • Toxic releases (RSEI)Health riskEPA's Risk-Screening Environmental Indicators score — weights TRI chemical releases by toxicity, where they go, and how many people are nearby. Higher means greater modeled cancer and chronic-health risk.49near the national median
  • Traffic proximityHealth riskPopulation-weighted distance to high-volume roads. Living close to heavy traffic raises exposure to PM2.5, NO₂, and diesel exhaust — and the cardiovascular and asthma risks that follow.37below the national median
  • Lead-paint risk (pre-1960 housing)Health riskShare of housing built before 1960, when lead-based paint was common. Dust from deteriorating paint is the leading cause of childhood lead poisoning, which permanently impairs cognitive development.66above the national median
  • Superfund site proximityHealth riskPopulation-weighted distance to NPL Superfund sites — the most contaminated waste sites in the country. Nearby groundwater, soil, and air can carry industrial solvents, metals, and other long-lived contaminants.85in the highest 20% nationally
  • RMP-facility proximityHealth riskDistance to facilities holding chemicals at quantities large enough to require an EPA Risk Management Plan (refineries, fertilizer plants, etc.). These pose acute exposure risk during accidental releases.44near the national median
  • Hazardous-waste site proximityHealth riskDistance to RCRA hazardous-waste handlers (treatment, storage, disposal facilities). Indicates potential exposure to industrial chemicals in air, soil, and groundwater.53near the national median
  • Underground storage tanksHealth riskDensity of underground tanks (gasoline, heating oil, industrial fluids). Leaking tanks are a leading source of benzene and other volatile organic compounds in groundwater drinking-water supplies.59near the national median
  • NPDES wastewater proximityHealth riskDistance to permitted industrial wastewater dischargers. Closer proximity raises exposure to pollutants released into surface waters used for fishing, recreation, and downstream drinking-water intakes.60above the national median
  • Drinking-water non-complianceHealth riskEPA score for public water systems with health-based Safe Drinking Water Act violations. Higher means more residents on systems that recently exceeded safe limits for contaminants like lead, arsenic, or nitrate.89in the highest 20% nationally
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)1well below the reference
Ozone30well below the reference
Nitrogen dioxide (NO₂)3well below the reference
Diesel particulate14well below the reference
Toxic releases (RSEI)27well below the reference
Traffic proximity21well below the reference
Lead-paint risk (pre-1960 housing)32well below the reference
Superfund site proximity33well below the reference
RMP-facility proximity16well below the reference
Hazardous-waste site proximity28well below the reference
Underground storage tanks29well below the reference
NPDES wastewater proximity32well below the reference
Drinking-water non-compliance19well below the reference

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).

Source. EPA Safe Drinking Water Information System · retrieved 2026-05-07. Reporting period 2023-01-012026-05-07.

What this is not. SDWIS records compliance against federal MCLs — not a direct readout of tap-water concentrations. Active health-based violations are not the same as a current crisis; we link to the EPA record so you can verify return-to-compliance status before forming a conclusion.