Missouri · drinking water · SDWIS through latest publish

Vanduser Pws Water Quality — Vanduser, Missouri

PWSID MO4010814 · GroundwaterMunicipal

168 people served. No health-based SDWIS violations recorded in the past 5 years. 65 remain unresolved. Last cited 1 year ago.

ALL SDWIS VIOLATIONS · 20202026 (annual count)
Bar chart of annual values from 2020 to 2026, in violations. Most recent year (2026): 0 violations.41 violations'20'21'22'23'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 0700

Unresolved Drinking water rule (140) violation cited in 2025 (contaminant 0700).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Total Trihalomethanes (TTHM)

Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Total Trihalomethanes (TTHM)

Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Haloacetic Acids (HAA5)

Unresolved Total Trihalomethanes Rule violation cited in 2025 (haloacetic acids (haa5)).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 070016 citations
  • Total Trihalomethanes (TTHM)10 citations
  • Haloacetic Acids (HAA5)10 citations
  • Contaminant 75002 citations
  • Contaminant 80002 citations
  • Contaminant 50001 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 0700UNRESOLVED

2025 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2025 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2025 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2025 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2025 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2025 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2025 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · CONTAMINANT 5000UNRESOLVED

2025 · Contaminant 5000 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 5000

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700UNRESOLVED

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700UNRESOLVED

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2024 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2024 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2024 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2024 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2024 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2024 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2024 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2024 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

OTHER · CONTAMINANT 7500

2023 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7500

2023 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

MONITORING · CONTAMINANT 8000

2022 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 8000

2022 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 0700

2021 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2021 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2021 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2021 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2021 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · TOTAL TRIHALOMETHANES (TTHM)UNRESOLVED

2021 · Total Trihalomethanes (TTHM) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2950

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2021 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2021 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2021 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · HALOACETIC ACIDS (HAA5)UNRESOLVED

2021 · Haloacetic Acids (HAA5) · Total Trihalomethanes Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2456

MONITORING · ENDRINUNRESOLVED

2020 · Endrin · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2005

MONITORING · LINDANEUNRESOLVED

2020 · Lindane · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2010

MONITORING · METHOXYCHLORUNRESOLVED

2020 · Methoxychlor · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2015

MONITORING · TOXAPHENEUNRESOLVED

2020 · Toxaphene · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2020

MONITORING · CONTAMINANT 2021UNRESOLVED

2020 · Contaminant 2021 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2021

MONITORING · CONTAMINANT 2022UNRESOLVED

2020 · Contaminant 2022 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2022

MONITORING · CONTAMINANT 2031UNRESOLVED

2020 · Contaminant 2031 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2031

MONITORING · CONTAMINANT 2036UNRESOLVED

2020 · Contaminant 2036 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2036

MONITORING · CONTAMINANT 2037UNRESOLVED

2020 · Contaminant 2037 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2037

MONITORING · CONTAMINANT 2040UNRESOLVED

2020 · Contaminant 2040 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2040

MONITORING · CONTAMINANT 2041UNRESOLVED

2020 · Contaminant 2041 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2041

MONITORING · CONTAMINANT 2042UNRESOLVED

2020 · Contaminant 2042 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2042

MONITORING · CONTAMINANT 2043UNRESOLVED

2020 · Contaminant 2043 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2043

MONITORING · CONTAMINANT 2044UNRESOLVED

2020 · Contaminant 2044 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2044

MONITORING · CONTAMINANT 2045UNRESOLVED

2020 · Contaminant 2045 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2045

MONITORING · CONTAMINANT 2046UNRESOLVED

2020 · Contaminant 2046 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2046

MONITORING · CONTAMINANT 2047UNRESOLVED

2020 · Contaminant 2047 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2047

MONITORING · 2,4-DUNRESOLVED

2020 · 2,4-D · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2050

MONITORING · CONTAMINANT 2051UNRESOLVED

2020 · Contaminant 2051 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2051

MONITORING · CONTAMINANT 2054UNRESOLVED

2020 · Contaminant 2054 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2054

MONITORING · 2,4,5-TP (SILVEX)UNRESOLVED

2020 · 2,4,5-TP (Silvex) · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2065

MONITORING · CONTAMINANT 2066UNRESOLVED

2020 · Contaminant 2066 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2066

MONITORING · CONTAMINANT 2067UNRESOLVED

2020 · Contaminant 2067 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2067

MONITORING · CONTAMINANT 2070UNRESOLVED

2020 · Contaminant 2070 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2070

MONITORING · CONTAMINANT 2076UNRESOLVED

2020 · Contaminant 2076 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2076

MONITORING · CONTAMINANT 2077UNRESOLVED

2020 · Contaminant 2077 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2077

MONITORING · ALACHLORUNRESOLVED

2020 · Alachlor · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2105

MONITORING · ATRAZINEUNRESOLVED

2020 · Atrazine · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2110

MONITORING · CONTAMINANT 2274UNRESOLVED

2020 · Contaminant 2274 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2274

MONITORING · CONTAMINANT 2326UNRESOLVED

2020 · Contaminant 2326 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2326

MONITORING · CONTAMINANT 2356UNRESOLVED

2020 · Contaminant 2356 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2356

MONITORING · VINYL CHLORIDEUNRESOLVED

2020 · Vinyl chloride · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2388

MONITORING · CONTAMINANT 2390UNRESOLVED

2020 · Contaminant 2390 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2390

MONITORING · CONTAMINANT 2392UNRESOLVED

2020 · Contaminant 2392 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2392

MONITORING · CONTAMINANT 2394UNRESOLVED

2020 · Contaminant 2394 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2394

MONITORING · CONTAMINANT 2396UNRESOLVED

2020 · Contaminant 2396 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2396

MONITORING · CONTAMINANT 2398UNRESOLVED

2020 · Contaminant 2398 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2398

MONITORING · CONTAMINANT 2400UNRESOLVED

2020 · Contaminant 2400 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2400

MONITORING · CONTAMINANT 2440UNRESOLVED

2020 · Contaminant 2440 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2440

MONITORING · CONTAMINANT 2595UNRESOLVED

2020 · Contaminant 2595 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 2595

MONITORING · CONTAMINANT 2959UNRESOLVED

2020 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled

CONTAMINANT CODE 2959

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

Who Drinks This Water

Scott County, Missouri (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 38,055. Local disparity score for pm2.5 (fine particulate) sits below the reference (72). Why we surface this →

POPULATION SHARE
15.6%

Low-income

POPULATION SHARE
18.1%

People of color

POPULATION SHARE
7.2%

Under age 5

POPULATION SHARE
18.3%

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.60above the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.54near 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.40near 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.39below 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.35below 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.20below 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.61above 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.59near 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.63above 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.38below 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.61above 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.85in the highest 20% 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.78above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)72below the reference
Ozone69below the reference
Nitrogen dioxide (NO₂)55below the reference
Diesel particulate49well below the reference
Toxic releases (RSEI)35well below the reference
Traffic proximity26well below the reference
Lead-paint risk (pre-1960 housing)57below the reference
Superfund site proximity49well below the reference
RMP-facility proximity67below the reference
Hazardous-waste site proximity45well below the reference
Underground storage tanks52below the reference
NPDES wastewater proximity89below the reference
Drinking-water non-compliance18well 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 2020-01-012026-05-07.

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.