New York · drinking water · SDWIS through latest publish

Delhi Village Water Quality — Delhi, New York

PWSID NY1200257 · GroundwaterMunicipal

3,833 people served. No health-based SDWIS violations recorded in the past 5 years. Last cited 5 years ago.

ALL SDWIS VIOLATIONS · 20212026 (annual count)
Bar chart of annual values from 2021 to 2026, in violations. Most recent year (2026): 0 violations.112 violations'21'22'23'24'25'260 violations
Anomaly engine

Active signals

No SDWIS health-based or unresolved violations on the record. Contaminant detail and equity context below.

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 22242 citations
  • Contaminant 29882 citations
  • Contaminant 29892 citations
  • Contaminant 29902 citations
  • Contaminant 29912 citations
  • Contaminant 29922 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.

MONITORING · CONTAMINANT 2224

2021 · Contaminant 2224 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2224

MONITORING · CONTAMINANT 2988

2021 · Contaminant 2988 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2988

MONITORING · CONTAMINANT 2989

2021 · Contaminant 2989 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2989

MONITORING · CONTAMINANT 2990

2021 · Contaminant 2990 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2990

MONITORING · CONTAMINANT 2991

2021 · Contaminant 2991 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2991

MONITORING · CONTAMINANT 2992

2021 · Contaminant 2992 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2992

MONITORING · CONTAMINANT 2993

2021 · Contaminant 2993 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2993

MONITORING · CONTAMINANT 2994

2021 · Contaminant 2994 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2994

MONITORING · CONTAMINANT 2995

2021 · Contaminant 2995 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2995

MONITORING · CONTAMINANT 2996

2021 · Contaminant 2996 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2996

MONITORING · CONTAMINANT 2997

2021 · Contaminant 2997 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2997

MONITORING · CONTAMINANT 2228

2021 · Contaminant 2228 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2228

MONITORING · CONTAMINANT 2998

2021 · Contaminant 2998 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2998

MONITORING · CONTAMINANT 2428

2021 · Contaminant 2428 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2428

OTHER · CONTAMINANT

2021 · Contaminant · Lead and Copper Rule

OTHER; returned to compliance

CONTAMINANT CODE

MONITORING · CONTAMINANT 8000

2021 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 2246

2021 · Contaminant 2246 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2246

MONITORING · CONTAMINANT 2251

2021 · Contaminant 2251 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2251

MONITORING · XYLENES (TOTAL)

2021 · Xylenes (total) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2378

MONITORING · BENZENE

2021 · Benzene · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2380

MONITORING · CONTAMINANT 2408

2021 · Contaminant 2408 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2408

MONITORING · CONTAMINANT 2410

2021 · Contaminant 2410 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2410

MONITORING · CONTAMINANT 2412

2021 · Contaminant 2412 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2412

MONITORING · CONTAMINANT 2414

2021 · Contaminant 2414 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2414

MONITORING · BERYLLIUM

2021 · Beryllium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1040

MONITORING · CONTAMINANT 2416

2021 · Contaminant 2416 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2416

MONITORING · CONTAMINANT 2418

2021 · Contaminant 2418 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2418

MONITORING · CONTAMINANT 2420

2021 · Contaminant 2420 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2420

MONITORING · CONTAMINANT 2422

2021 · Contaminant 2422 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2422

MONITORING · CONTAMINANT 2424

2021 · Contaminant 2424 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2424

MONITORING · CONTAMINANT 2426

2021 · Contaminant 2426 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2426

MONITORING · CONTAMINANT 2430

2021 · Contaminant 2430 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2430

MONITORING · CONTAMINANT 2962

2021 · Contaminant 2962 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2962

MONITORING · CONTAMINANT 2964

2021 · Contaminant 2964 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2964

MONITORING · CONTAMINANT 2965

2021 · Contaminant 2965 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2965

MONITORING · BERYLLIUM

2021 · Beryllium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1040

MONITORING · CONTAMINANT 2966

2021 · Contaminant 2966 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2966

MONITORING · CONTAMINANT 2967

2021 · Contaminant 2967 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2967

MONITORING · CONTAMINANT 2968

2021 · Contaminant 2968 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2968

MONITORING · CONTAMINANT 2969

2021 · Contaminant 2969 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2969

MONITORING · CONTAMINANT 2976

2021 · Contaminant 2976 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2976

MONITORING · CONTAMINANT 2977

2021 · Contaminant 2977 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2977

MONITORING · CONTAMINANT 2978

2021 · Contaminant 2978 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2978

MONITORING · CONTAMINANT 2979

2021 · Contaminant 2979 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2979

MONITORING · METHYL TERT-BUTYL ETHER (MTBE)

2021 · Methyl tert-butyl ether (MTBE) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2980

MONITORING · CONTAMINANT 2981

2021 · Contaminant 2981 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2981

MONITORING · CONTAMINANT 2030

2021 · Contaminant 2030 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2030

MONITORING · CONTAMINANT 2982

2021 · Contaminant 2982 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2982

MONITORING · CONTAMINANT 2983

2021 · Contaminant 2983 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2983

MONITORING · CONTAMINANT 2984

2021 · Contaminant 2984 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2984

MONITORING · CONTAMINANT 2985

2021 · Contaminant 2985 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2985

MONITORING · CONTAMINANT 2986

2021 · Contaminant 2986 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2986

MONITORING · CONTAMINANT 2987

2021 · Contaminant 2987 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2987

MONITORING · CONTAMINANT 2988

2021 · Contaminant 2988 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2988

MONITORING · CONTAMINANT 2989

2021 · Contaminant 2989 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2989

MONITORING · CONTAMINANT 2990

2021 · Contaminant 2990 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2990

MONITORING · CONTAMINANT 2991

2021 · Contaminant 2991 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2991

MONITORING · CONTAMINANT 2210

2021 · Contaminant 2210 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2210

MONITORING · CONTAMINANT 2992

2021 · Contaminant 2992 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2992

MONITORING · CONTAMINANT 2993

2021 · Contaminant 2993 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2993

MONITORING · CONTAMINANT 2994

2021 · Contaminant 2994 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2994

MONITORING · CONTAMINANT 2995

2021 · Contaminant 2995 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2995

MONITORING · CONTAMINANT 2996

2021 · Contaminant 2996 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2996

MONITORING · CONTAMINANT 2997

2021 · Contaminant 2997 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2997

MONITORING · CONTAMINANT 2998

2021 · Contaminant 2998 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2998

MONITORING · CONTAMINANT 2428

2021 · Contaminant 2428 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2428

MONITORING · CONTAMINANT 2030

2021 · Contaminant 2030 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2030

MONITORING · CONTAMINANT 2210

2021 · Contaminant 2210 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2210

MONITORING · CONTAMINANT 2212

2021 · Contaminant 2212 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2212

MONITORING · CONTAMINANT 2212

2021 · Contaminant 2212 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2212

MONITORING · CONTAMINANT 2214

2021 · Contaminant 2214 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2214

MONITORING · CONTAMINANT 2216

2021 · Contaminant 2216 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2216

MONITORING · CONTAMINANT 2218

2021 · Contaminant 2218 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2218

MONITORING · CONTAMINANT 2224

2021 · Contaminant 2224 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2224

MONITORING · CONTAMINANT 2228

2021 · Contaminant 2228 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2228

MONITORING · CONTAMINANT 2246

2021 · Contaminant 2246 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2246

MONITORING · CONTAMINANT 2251

2021 · Contaminant 2251 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2251

MONITORING · XYLENES (TOTAL)

2021 · Xylenes (total) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2378

MONITORING · BENZENE

2021 · Benzene · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2380

MONITORING · CONTAMINANT 2214

2021 · Contaminant 2214 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2214

MONITORING · CONTAMINANT 2408

2021 · Contaminant 2408 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2408

MONITORING · CONTAMINANT 2410

2021 · Contaminant 2410 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2410

MONITORING · CONTAMINANT 2412

2021 · Contaminant 2412 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2412

MONITORING · CONTAMINANT 2414

2021 · Contaminant 2414 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2414

MONITORING · CONTAMINANT 2416

2021 · Contaminant 2416 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2416

MONITORING · CONTAMINANT 2418

2021 · Contaminant 2418 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2418

MONITORING · CONTAMINANT 2420

2021 · Contaminant 2420 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2420

MONITORING · CONTAMINANT 2422

2021 · Contaminant 2422 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2422

MONITORING · CONTAMINANT 2424

2021 · Contaminant 2424 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2424

MONITORING · CONTAMINANT 2426

2021 · Contaminant 2426 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2426

MONITORING · CONTAMINANT 2216

2021 · Contaminant 2216 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2216

MONITORING · CONTAMINANT 2430

2021 · Contaminant 2430 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2430

MONITORING · CONTAMINANT 2962

2021 · Contaminant 2962 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2962

MONITORING · CONTAMINANT 2964

2021 · Contaminant 2964 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2964

MONITORING · CONTAMINANT 2965

2021 · Contaminant 2965 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2965

MONITORING · CONTAMINANT 2966

2021 · Contaminant 2966 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2966

MONITORING · CONTAMINANT 2967

2021 · Contaminant 2967 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2967

MONITORING · CONTAMINANT 2968

2021 · Contaminant 2968 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2968

MONITORING · CONTAMINANT 2969

2021 · Contaminant 2969 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2969

MONITORING · CONTAMINANT 2976

2021 · Contaminant 2976 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2976

MONITORING · CONTAMINANT 2977

2021 · Contaminant 2977 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2977

MONITORING · CONTAMINANT 2218

2021 · Contaminant 2218 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2218

MONITORING · CONTAMINANT 2978

2021 · Contaminant 2978 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2978

MONITORING · CONTAMINANT 2979

2021 · Contaminant 2979 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2979

MONITORING · METHYL TERT-BUTYL ETHER (MTBE)

2021 · Methyl tert-butyl ether (MTBE) · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2980

MONITORING · CONTAMINANT 2981

2021 · Contaminant 2981 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2981

MONITORING · CONTAMINANT 2982

2021 · Contaminant 2982 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2982

MONITORING · CONTAMINANT 2983

2021 · Contaminant 2983 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2983

MONITORING · CONTAMINANT 2984

2021 · Contaminant 2984 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2984

MONITORING · CONTAMINANT 2985

2021 · Contaminant 2985 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2985

MONITORING · CONTAMINANT 2986

2021 · Contaminant 2986 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2986

MONITORING · CONTAMINANT 2987

2021 · Contaminant 2987 · Arsenic Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2987

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

Who Drinks This Water

Delhi, New York (Census place; block-group disparity scores aggregated by centroid containment): a service population of 3,148. Local disparity score for pm2.5 (fine particulate) sits well below the reference (2). Why we surface this →

POPULATION SHARE
17.6%

Low-income

POPULATION SHARE
16.3%

People of color

POPULATION SHARE
2.7%

Under age 5

POPULATION SHARE
13.0%

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.6below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.5below 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.56near 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.6below 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.3below 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.5below 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.17below 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.56near the national median
  • 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.47near 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.55near 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.89in the highest 20% nationally
  • 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.14below 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.76above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)2well below the reference
Ozone7well below the reference
Nitrogen dioxide (NO₂)14well below the reference
Diesel particulate2well below the reference
Toxic releases (RSEI)1well below the reference
Traffic proximity2well below the reference
Lead-paint risk (pre-1960 housing)0well below the reference
Superfund site proximity0well below the reference
RMP-facility proximity12well below the reference
Hazardous-waste site proximity14well below the reference
Underground storage tanks22well below the reference
NPDES wastewater proximity4well below the reference
Drinking-water non-compliance0well 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 2021-01-012026-05-07.

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.