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Federal water data

County water report

Scott County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Scott County, Minnesota.

Water grade

C

Water score

59.8

State rank

#58

of 87

Health violations

8

EPA SDWIS, 5-year lookback

Watershed impaired

Not reported

EPA ATTAINS coverage varies by state

Monitoring sites

79

32,032 recent measurements

Live streamflow

No gauge

Primary USGS station not mapped

Water at a glance

Key Water Indicators for Scott County

EPA SDWIS

Safety Grade

C

Score: 59.8 / 100

EPA SDWIS

Active Violations

8

5-year health-based lookback

EPA ATTAINS

Watershed Health

Not reported

Coverage varies by state

USGS NWIS

Streamflow Snapshot

No gauge

Primary USGS gauge not mapped

EPA WQP

Monitoring Sites

79

32,032 recent readings

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

C

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

59.8/100

Health violations

8

Health-based violations

Violations per 100K served

6.5

Population-normalized SDWIS rate

Editorial analysis

Understanding Scott County’s Water

Drinking Water Quality Overview

EPA SDWIS

Scott County's drinking water earned a C grade, scoring 59.8 out of 100. Over the past five years, EPA SDWIS records 8 health-based violations — a pattern that public water utilities are required to disclose and correct.

Monitoring Network

EPA WQP

EPA's Water Quality Portal (WQP) aggregates monitoring data from federal, state, and tribal agencies. Scott County has extensive coverage with 79 active monitoring sites with 32,032 recent measurements on record. Predominant monitoring categories include physical and organics, pesticide. More monitoring sites generally indicate greater scientific attention to local water conditions — and provide the baseline data that regulators use to set future impairment listings.

Editorial advisory

What the data suggests for Scott County

Water Verdict

Scott County receives a fair water quality assessment with a grade of C and a score of 59.8 out of 100. The water supply meets baseline federal standards, but there may be periods of elevated contaminant levels or infrastructure concerns worth monitoring.

Violation Context

Scott County has recorded 8 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 6.5 violations per 100,000 people served, this rate is moderate and suggests recurring water quality challenges.

Consumer Guidance

Tap water in Scott County meets baseline standards but the compliance record shows room for improvement, with a Grade C rating. Scott County's drinking-water compliance score is 59.8 out of 100. The violation rate for Scott County is 6.5 per 100,000 people served. Residents who are immunocompromised, pregnant, or have young children may benefit from using an NSF 53-certified filter. Contacting your local utility for the current Consumer Confidence Report will confirm which specific violations were recorded and whether they have been resolved. With 79 active water-quality monitoring sites in Scott County, data coverage is strong.

Regional Context

Scott County has poorer water quality than the average county in Minnesota. Its water score is 7.4 points lower than the state average, suggesting more challenges with contamination control or infrastructure than neighboring counties.

Advisory text summarizes county-level public records and is not a replacement for your utility's current Consumer Confidence Report or direct local notices.

Contaminants & Resources

Key issues flagged in Scott County's water environment

Official EPA Resources for Scott County

EPA How's My Waterway

Interactive watershed health data for Scott County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Scott County

Consumer Confidence Reports (MN)

Annual water quality reports from utilities in Minnesota

Past 5 years

Water Quality Monitoring

Monitoring Sites

79

Active in the past 5 years

Measurements Recorded

32K

32,032 total readings

Most Measured

  • Physical
  • Organics, Pesticide
  • Nutrient

Categories measured most frequently

Data from the EPA Water Quality Portal (WQP), aggregating monitoring records from federal, state, and tribal sources. Each measurement represents a single sample analyzed for a specific characteristic (e.g., E. coli, pH, dissolved oxygen, nitrogen).

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Water Cost Estimate

3

3 people  ·  ~225 gal/day

Annual Total

$558

Monthly

$47

Water Bill

$558/yr

Filter Cost

$0/yr

Safety Grade for Scott County:D — Poor

Elevated violations or significant watershed impairment.

Estimates use the national average residential water rate ($0.0068/gal, EPA/AWWA 2023) and EPA WaterSense per-person consumption baseline (75 gal/person/day). Actual bills vary by utility, usage tier, and local infrastructure fees. For informational purposes only.

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Frequently Asked Questions

What is the water quality in Scott County, Minnesota?
Scott County, Minnesota has a drinking-water quality grade of C with a score of 59.8/100, based on EPA SDWIS compliance data. The county has 8 health-based drinking water violations over the past 5 years. Watershed health, monitoring records, and streamflow snapshots are reported separately on this page.
Are there any water violations in Scott County?
Scott County has 8 health-based drinking water violations recorded by the EPA over the past 5 years. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.
How much water-quality monitoring happens in Scott County?
EPA's Water Quality Portal records 32,032 measurements from 79 monitoring sites in Scott County over the past five years. The most frequently measured characteristic groups are Physical, Organics, Pesticide, Nutrient. Each measurement is a single sample analyzed for one characteristic (E. coli, pH, dissolved oxygen, etc.). High monitoring density means more scientific evidence behind any reported signal — it does not by itself indicate water quality.
How does Scott County water compare to the Minnesota average?
Scott County's SDWIS water quality score of 59.8/100 is lower than the Minnesota state average of 67.2. The average water quality grade across Minnesota is C, based on data from 87 counties with available SDWIS data.
Is tap water safe to drink in Scott County?
Based on EPA SDWIS data, Scott County has a water quality grade of C (59.8/100). This indicates moderate compliance. Some violations have been recorded but overall standards are maintained. The grade speaks to the public water system, not the watershed — for watershed-level concerns, see the Watershed Health zone. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Why does Scott County have so many water violations?
Scott County has 8 health-based drinking water violations on record from the EPA SDWIS database. A higher violation count can result from aging infrastructure, underfunded water utilities, agricultural runoff contamination, or industrial pollution. Counties with more water systems may also see more violations simply due to scale. Residents concerned about water quality should consider independent water testing and home filtration systems.
How does Scott County rank for water quality in Minnesota?
Scott County ranks #58 out of 87 counties in Minnesota by SDWIS water quality score (1 = best). With a score of 59.8/100, it falls in the middle third of counties statewide. The ranking reflects EPA SDWIS compliance only — not watershed impairment, monitoring density, or streamflow, which are tracked separately on this page.

Counties with Similar Water Quality

Steele County

Minnesota

C

59.8

Water score

Goodhue County

Minnesota

C

60.4

Water score

Winona County

Minnesota

C

58.6

Water score

Data Sources

Drinking-water compliance data from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Water-quality monitoring counts from the EPA Water Quality Portal (WQP), federated USGS, EPA, and state agency sampling records over a rolling 5-year window.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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