New York · drinking water · SDWIS through latest publish

Hannibal Town Water District #2 Water Quality — Hannibal, New York

PWSID NY3730101 · Purchased / wholesalePrivate

2,000 people served. No health-based SDWIS violations recorded in the past 5 years. 28 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.29 violations'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 8000

Unresolved Revised Total Coliform Rule violation cited in 2025 (contaminant 8000).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Dibromochloromethane

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

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Bromoform

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

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 2943

Unresolved Lead and Copper Rule violation cited in 2025 (contaminant 2943).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Dibromochloromethane3 citations
  • Bromoform3 citations
  • Contaminant 29433 citations
  • Contaminant 29443 citations
  • Contaminant 24503 citations
  • Contaminant 24513 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

2025 · Contaminant · Lead and Copper Rule

OTHER; returned to compliance

CONTAMINANT CODE

MONITORING · CONTAMINANT 8000UNRESOLVED

2025 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure

CONTAMINANT CODE 8000

MONITORING · DIBROMOCHLOROMETHANEUNRESOLVED

2025 · Dibromochloromethane · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2941

MONITORING · BROMOFORMUNRESOLVED

2025 · Bromoform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2942

MONITORING · CONTAMINANT 2943UNRESOLVED

2025 · Contaminant 2943 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2943

MONITORING · CONTAMINANT 2944UNRESOLVED

2025 · Contaminant 2944 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2944

MONITORING · CONTAMINANT 2450UNRESOLVED

2025 · Contaminant 2450 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2450

MONITORING · CONTAMINANT 2451UNRESOLVED

2025 · Contaminant 2451 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2451

MONITORING · CONTAMINANT 2452UNRESOLVED

2025 · Contaminant 2452 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2452

MONITORING · CONTAMINANT 2453UNRESOLVED

2025 · Contaminant 2453 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2453

MONITORING · CHLOROFORMUNRESOLVED

2025 · Chloroform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2454

MONITORING · DIBROMOCHLOROMETHANEUNRESOLVED

2025 · Dibromochloromethane · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2941

MONITORING · BROMOFORMUNRESOLVED

2025 · Bromoform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2942

MONITORING · CONTAMINANT 2943UNRESOLVED

2025 · Contaminant 2943 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2943

MONITORING · CONTAMINANT 2944UNRESOLVED

2025 · Contaminant 2944 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2944

MONITORING · CONTAMINANT 2450UNRESOLVED

2025 · Contaminant 2450 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2450

MONITORING · CONTAMINANT 2451UNRESOLVED

2025 · Contaminant 2451 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2451

MONITORING · CONTAMINANT 2452UNRESOLVED

2025 · Contaminant 2452 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2452

MONITORING · CONTAMINANT 2453UNRESOLVED

2025 · Contaminant 2453 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2453

MONITORING · CHLOROFORMUNRESOLVED

2025 · Chloroform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2454

MONITORING · DIBROMOCHLOROMETHANEUNRESOLVED

2025 · Dibromochloromethane · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2941

MONITORING · BROMOFORMUNRESOLVED

2025 · Bromoform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2942

MONITORING · CONTAMINANT 2943UNRESOLVED

2025 · Contaminant 2943 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2943

MONITORING · CONTAMINANT 2944UNRESOLVED

2025 · Contaminant 2944 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2944

MONITORING · CONTAMINANT 2450UNRESOLVED

2025 · Contaminant 2450 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2450

MONITORING · CONTAMINANT 2451UNRESOLVED

2025 · Contaminant 2451 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2451

MONITORING · CONTAMINANT 2452UNRESOLVED

2025 · Contaminant 2452 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2452

MONITORING · CONTAMINANT 2453UNRESOLVED

2025 · Contaminant 2453 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2453

MONITORING · CHLOROFORMUNRESOLVED

2025 · Chloroform · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2454

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

Who Drinks This Water

Oswego County, New York (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 118,037. Local disparity score for pm2.5 (fine particulate) sits well below the reference (8). Why we surface this →

POPULATION SHARE
17.1%

Low-income

POPULATION SHARE
7.8%

People of color

POPULATION SHARE
5.5%

Under age 5

POPULATION SHARE
17.1%

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.8below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.36below 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.14below 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.10below 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.48near 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.17below 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.73above 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.68above 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.57near 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.33below 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.52near 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.42near 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.77above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)8well below the reference
Ozone39well below the reference
Nitrogen dioxide (NO₂)16well below the reference
Diesel particulate12well below the reference
Toxic releases (RSEI)42well below the reference
Traffic proximity18well below the reference
Lead-paint risk (pre-1960 housing)64below the reference
Superfund site proximity44well below the reference
RMP-facility proximity40well below the reference
Hazardous-waste site proximity25well below the reference
Underground storage tanks36well below the reference
NPDES wastewater proximity35well below the reference
Drinking-water non-compliance8well 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.