Wisconsin · drinking water · SDWIS through latest publish

Cross Plains Waterworks Water Quality — Cross Plains, Wisconsin

PWSID WI1130219 · GroundwaterMunicipal

4,100 people served. No health-based SDWIS violations recorded in the past 5 years. 10 remain unresolved. Last cited 2 years ago.

ALL SDWIS VIOLATIONS · 20242026 (annual count)
Bar chart of annual values from 2024 to 2026, in violations. Most recent year (2026): 0 violations.14 violations'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 4030

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 4030).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 4010

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 4010).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Uranium

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (uranium).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Combined Radium 226/228

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (combined radium 226/228).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 70004 citations
  • Contaminant 40302 citations
  • Contaminant 40102 citations
  • Uranium2 citations
  • Combined Radium 226/2282 citations
  • Contaminant 40202 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 4030UNRESOLVED

2024 · Contaminant 4030 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4030

MONITORING · CONTAMINANT 4010UNRESOLVED

2024 · Contaminant 4010 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4010

MONITORING · URANIUMUNRESOLVED

2024 · Uranium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4006

MONITORING · COMBINED RADIUM 226/228UNRESOLVED

2024 · Combined Radium 226/228 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4000

MONITORING · CONTAMINANT 4020UNRESOLVED

2024 · Contaminant 4020 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4020

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

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

MONITORING · CONTAMINANT 4030UNRESOLVED

2024 · Contaminant 4030 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4030

MONITORING · CONTAMINANT 4020UNRESOLVED

2024 · Contaminant 4020 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4020

MONITORING · CONTAMINANT 4010UNRESOLVED

2024 · Contaminant 4010 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4010

MONITORING · COMBINED RADIUM 226/228UNRESOLVED

2024 · Combined Radium 226/228 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4000

MONITORING · URANIUMUNRESOLVED

2024 · Uranium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4006

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

Who Drinks This Water

Dane County, Wisconsin (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 559,891. Local disparity score for pm2.5 (fine particulate) sits below the reference (57). Why we surface this →

POPULATION SHARE
10.9%

Low-income

POPULATION SHARE
22.2%

People of color

POPULATION SHARE
5.3%

Under age 5

POPULATION SHARE
14.4%

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.63above the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.75above 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.75above 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.41near 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.42near 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.87in 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.57near 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.70above 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.66above 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.59near 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.70above 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.73above 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.78above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)57below the reference
Ozone49well below the reference
Nitrogen dioxide (NO₂)67below the reference
Diesel particulate39well below the reference
Toxic releases (RSEI)30well below the reference
Traffic proximity72below the reference
Lead-paint risk (pre-1960 housing)37well below the reference
Superfund site proximity48well below the reference
RMP-facility proximity50below the reference
Hazardous-waste site proximity51below the reference
Underground storage tanks47well below the reference
NPDES wastewater proximity45well below the reference
Drinking-water non-compliance5well 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 2024-01-012026-05-07.

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.