Connecticut · drinking water · SDWIS through latest publish

Putnam Water Pollution Control Authority Water Quality — Putnam, Connecticut

PWSID CT1160011 · Surface waterMunicipal

7,300 people served. No health-based SDWIS violations recorded in the past 5 years. 48 remain unresolved. Last cited 1 year ago.

ALL SDWIS VIOLATIONS · 20252026 (annual count)
Bar chart of annual values from 2025 to 2026, in violations. Most recent year (2026): 0 violations.48 violations'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 2997

Unresolved Lead and Copper Rule violation cited in 2025 (contaminant 2997).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 2988

Unresolved Lead and Copper Rule violation cited in 2025 (contaminant 2988).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Methyl tert-butyl ether (MTBE)

Unresolved Arsenic Rule violation cited in 2025 (methyl tert-butyl ether (mtbe)).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 2965

Unresolved Lead and Copper Rule violation cited in 2025 (contaminant 2965).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 29971 citation
  • Contaminant 29881 citation
  • Methyl tert-butyl ether (MTBE)1 citation
  • Contaminant 29651 citation
  • Contaminant 29621 citation
  • Xylenes (total)1 citation
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 2997UNRESOLVED

2025 · Contaminant 2997 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2997

MONITORING · CONTAMINANT 2988UNRESOLVED

2025 · Contaminant 2988 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2988

MONITORING · METHYL TERT-BUTYL ETHER (MTBE)UNRESOLVED

2025 · Methyl tert-butyl ether (MTBE) · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2980

MONITORING · CONTAMINANT 2965UNRESOLVED

2025 · Contaminant 2965 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2965

MONITORING · CONTAMINANT 2962UNRESOLVED

2025 · Contaminant 2962 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2962

MONITORING · XYLENES (TOTAL)UNRESOLVED

2025 · Xylenes (total) · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2378

MONITORING · CONTAMINANT 2248UNRESOLVED

2025 · Contaminant 2248 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2248

MONITORING · CONTAMINANT 2983UNRESOLVED

2025 · Contaminant 2983 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2983

MONITORING · BROMOFORMUNRESOLVED

2025 · Bromoform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2942

MONITORING · DIBROMOCHLOROMETHANEUNRESOLVED

2025 · Dibromochloromethane · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2941

MONITORING · CONTAMINANT 2418UNRESOLVED

2025 · Contaminant 2418 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2418

MONITORING · CONTAMINANT 2416UNRESOLVED

2025 · Contaminant 2416 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2416

MONITORING · CONTAMINANT 2993UNRESOLVED

2025 · Contaminant 2993 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2993

MONITORING · CONTAMINANT 2989UNRESOLVED

2025 · Contaminant 2989 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2989

MONITORING · CONTAMINANT 2944UNRESOLVED

2025 · Contaminant 2944 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2944

MONITORING · CONTAMINANT 2943UNRESOLVED

2025 · Contaminant 2943 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2943

MONITORING · CONTAMINANT 2412UNRESOLVED

2025 · Contaminant 2412 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2412

MONITORING · CONTAMINANT 2408UNRESOLVED

2025 · Contaminant 2408 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2408

MONITORING · CONTAMINANT 2214UNRESOLVED

2025 · Contaminant 2214 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2214

MONITORING · CONTAMINANT 2992UNRESOLVED

2025 · Contaminant 2992 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2992

MONITORING · CONTAMINANT 2991UNRESOLVED

2025 · Contaminant 2991 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2991

MONITORING · CONTAMINANT 2987UNRESOLVED

2025 · Contaminant 2987 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2987

MONITORING · CONTAMINANT 2969UNRESOLVED

2025 · Contaminant 2969 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2969

MONITORING · CONTAMINANT 2998UNRESOLVED

2025 · Contaminant 2998 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2998

MONITORING · CONTAMINANT 2985UNRESOLVED

2025 · Contaminant 2985 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2985

MONITORING · CONTAMINANT 2984UNRESOLVED

2025 · Contaminant 2984 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2984

MONITORING · CONTAMINANT 2981UNRESOLVED

2025 · Contaminant 2981 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2981

MONITORING · CONTAMINANT 2976UNRESOLVED

2025 · Contaminant 2976 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2976

MONITORING · CONTAMINANT 2966UNRESOLVED

2025 · Contaminant 2966 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2966

MONITORING · CONTAMINANT 2424UNRESOLVED

2025 · Contaminant 2424 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2424

MONITORING · CONTAMINANT 2422UNRESOLVED

2025 · Contaminant 2422 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2422

MONITORING · CONTAMINANT 2410UNRESOLVED

2025 · Contaminant 2410 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2410

MONITORING · CONTAMINANT 2251UNRESOLVED

2025 · Contaminant 2251 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2251

MONITORING · CONTAMINANT 2216UNRESOLVED

2025 · Contaminant 2216 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2216

MONITORING · CONTAMINANT 2996UNRESOLVED

2025 · Contaminant 2996 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2996

MONITORING · CONTAMINANT 2995UNRESOLVED

2025 · Contaminant 2995 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2995

MONITORING · CONTAMINANT 2977UNRESOLVED

2025 · Contaminant 2977 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2977

MONITORING · CONTAMINANT 2986UNRESOLVED

2025 · Contaminant 2986 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2986

MONITORING · CONTAMINANT 2978UNRESOLVED

2025 · Contaminant 2978 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2978

MONITORING · CONTAMINANT 2968UNRESOLVED

2025 · Contaminant 2968 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2968

MONITORING · CONTAMINANT 2964UNRESOLVED

2025 · Contaminant 2964 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2964

MONITORING · BENZENEUNRESOLVED

2025 · Benzene · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2380

MONITORING · CONTAMINANT 2990UNRESOLVED

2025 · Contaminant 2990 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2990

MONITORING · CONTAMINANT 2982UNRESOLVED

2025 · Contaminant 2982 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2982

MONITORING · CONTAMINANT 2979UNRESOLVED

2025 · Contaminant 2979 · Arsenic Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2979

MONITORING · CONTAMINANT 2967UNRESOLVED

2025 · Contaminant 2967 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2967

MONITORING · CONTAMINANT 2413UNRESOLVED

2025 · Contaminant 2413 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2413

MONITORING · CONTAMINANT 2210UNRESOLVED

2025 · Contaminant 2210 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2210

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

Who Drinks This Water

Connecticut state-level (neither place nor county matched for this utility): a service population of 3,605,944. Local disparity score for pm2.5 (fine particulate) sits well below the reference (41). Why we surface this →

POPULATION SHARE
10.1%

Low-income

POPULATION SHARE
36.1%

People of color

POPULATION SHARE
5.4%

Under age 5

POPULATION SHARE
17.4%

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.33below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.70above 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.39below 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.48near 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.82in the highest 20% nationally
  • 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.80in the highest 20% nationally
  • 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.74above 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.71above 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.52near 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.81in the highest 20% nationally
  • 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.72above 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.92in the highest 10% nationally
  • 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.86in the highest 20% nationally
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)41well below the reference
Ozone75below the reference
Nitrogen dioxide (NO₂)56below the reference
Diesel particulate57below the reference
Toxic releases (RSEI)75below the reference
Traffic proximity85below the reference
Lead-paint risk (pre-1960 housing)76below the reference
Superfund site proximity39well below the reference
RMP-facility proximity43well below the reference
Hazardous-waste site proximity87below the reference
Underground storage tanks61below the reference
NPDES wastewater proximity68below the reference
Drinking-water non-compliance15well 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 2025-01-012026-05-07.

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.