CITY REPORT MN HEALTH VIOLATIONS: 1

Thief River Falls, MN - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 1
County Radon Potential (High)
$190K
Median Home Value
$800
Est. Remediation (0.4% of home value)

Thief River Falls Water: The Quick Version

  • Your city's water systems recorded 2 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.007 mg/L.
  • Homes built before 1986: 68% - older plumbing may contain lead solder.
  • Estimated remediation: $800 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.39.

Water Systems Serving Thief River Falls

Federal drinking water data connect ZIP codes in Thief River Falls, MN to a count of 1 system, and the list on this page shows one of them. A listing reflects that link, not proof of which system serves a given street.

Overview

We track home safety data for 1 ZIP code in Thief River Falls, Minnesota, covering 1 community water system serving approximately 12,814 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.

Water Sources

Thief River Falls water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0070 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Treatment Technique 2 1
Interim Enhanced Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
56701 — 2 1 Thief River Falls

All ZIP Codes in Thief River Falls

  • 56701 - 2 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Thief River Falls

10.3%
Asthma (US: 9.8%)
11.2%
Diabetes (US: 10.4%)
16.3%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.3% ↑
Diabetes 11.2% ↑
Mental Health 16.3% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Thief River Falls

Lead and Copper Rule 2 violations
Treatment Technique
Developmental delays in children, kidney damage
Interim Enhanced Surface Water Treatment Rule 2 violations
Treatment Technique

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Thief River Falls's Housing Stock?

1977
Median Build Year
68%
Built Before 1986
45%
Built Before 1970
Copper
Likely Pipe Material

With 68% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Thief River Falls, where the median build year is 1977.

1977
Median Year Built
68%
Pre-1986 (lead solder era; lead paint banned 1978)
45%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (45%) 1970–1986 (23%) Post-1986 (32%)

Over half of homes in Thief River Falls were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Thief River Falls: Remediation Cost in Perspective

Because the median home value in Thief River Falls is large relative to the estimated cost of remediation, the ratio between them stays at or below 1%; that is a statement about two area-level numbers, not a quote for a particular house or a judgment about what an owner can pay.

Median Home Value
$189,700
Est. Remediation
$800
Remediation as % of home value 0.4%

Estimated remediation costs in Thief River Falls can be compared with local home values. The $450–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 21% below the Minnesota average.

Protecting Children from Lead in Thief River Falls

68%
Homes Built Before 1986
0.007
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Thief River Falls

22
Total FEMA Flood Claims
$31,270
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Thief River Falls contains 22 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $31,270. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $800 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many violations are on record for water systems serving Thief River Falls?
EPA records list 2 EPA violations, including 1 health-based violation for Thief River Falls water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Thief River Falls water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Thief River Falls is 0.007 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Thief River Falls?
Our records map 1 water system to 1 ZIP code in Thief River Falls. The related population figure in our data is approximately 12,814 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Thief River Falls?
Estimated remediation cost per household in Thief River Falls: $800; modeled range $450 to $1,400. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Thief River Falls, MN - Home Safety Score unavailable. https://zipcheckup.com/cities/mn/thief-river-falls/
BibTeX
@misc{zipcheckup-cities-mn-thief-river-falls,
  author = {{ZipCheckup}},
  title  = {{Thief River Falls, MN - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mn/thief-river-falls/}
}

Page version: October 2026.

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