CITY REPORT WI 1 HEALTH VIOLATIONS

Black Earth, WI - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
Zone 1
Radon Risk (High)
$336K
Median Home Value
$2,700
Est. Remediation (0.8% of home value)

What You Should Know About Black Earth Water

  • Your city's water systems recorded 6 violations in the past 5 years.
  • Average lead level: 0.0048 mg/L.
  • Homes built before 1986: 62% - older plumbing may contain lead solder.
  • Estimated remediation: $2,700 per household.
  • CDC health risk index: 10.18.

Who Supplies Your Water in Black Earth

Water delivery in Black Earth, WI is handled by 3 utilities rather than a single system - drawn from 3 providers in federal records, each filing its own compliance reports and setting its own rates.

Overview

We track home safety data for 1 ZIP code in Black Earth, Wisconsin (population ~2,635), covering 3 community water systems serving approximately 7,337 people region-wide. 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

Black Earth water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0048 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

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 8 1
Stage 2 DBP Rule Treatment Technique 2 1
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
53515 6 1 Mazomanie Waterworks

All ZIP Codes in Black Earth

  • 53515 - 6 violations ⚠

Data Sources

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

Health Outcomes in Black Earth

9.9%
Asthma (US: 9.8%)
8.2%
Diabetes (US: 10.4%)
14.8%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.9% ↑
Diabetes 8.2% ↓
Mental Health 14.8% ↓

Vertical line = national average. Above national · Below national

Top Contaminants in Black Earth Water

Surface Water Treatment Rule 8 violations
Treatment Technique
Pathogens may not be adequately removed
Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Lead and Copper Rule 2 violations
Treatment Technique
Developmental delays in children, kidney damage

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

Housing & Infrastructure in Black Earth

1974
Median Build Year
62%
Built Before 1986
33%
Built Before 1970
Copper
Likely Pipe Material

With 62% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

When a city's housing median build year is 1974, as in Black Earth, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.

1974
Median Year Built
62%
Pre-1986 (Lead Paint Risk)
33%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (33%) 1970–1986 (29%) Post-1986 (38%)

Over half of homes in Black Earth were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Black Earth Homeowners

In Black Earth, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.

Median Home Value
$336,400
Est. Remediation
$2,700
Remediation as % of home value 0.8%

Remediation costs in Black Earth are relatively low compared to home values. The $1,750–$3,900 estimated range is a small fraction of median property value. Home values are 46% above the Wisconsin average.

Lead Exposure Risk for Children in Black Earth

62%
Homes Built Before 1986
0.0048
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Routinely in Black Earth, where 62% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.

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

Historical NFIP Claim Context in Black Earth

19
Total FEMA Flood Claims
$16,749
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Black Earth contains 19 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,749. 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 <strong>$2,700</strong> 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 water violations does Black Earth have?
Black Earth water systems have a total of 6 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Black Earth water have lead?
The average 90th-percentile lead level in Black Earth is 0.0048 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Black Earth?
Black Earth is served by 3 public water systems across 1 ZIP code, serving approximately 2,635 people.
How much does it cost to fix water issues in Black Earth?
Estimated remediation costs in Black Earth average $2,700 per household, ranging from $1,750 to $3,900. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesWisconsin → Black Earth, WI

How to cite this page

APA ZipCheckup. (2026). Black Earth, WI - Home Safety Score unavailable. https://zipcheckup.com/cities/wi/black-earth/
BibTeX
@misc{zipcheckup-cities-wi-black-earth,
  author = {{ZipCheckup}},
  title  = {{Black Earth, WI - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wi/black-earth/}
}

Page version: August 2026.

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