CITY REPORT WI 1 HEALTH VIOLATIONS

Sherwood, WI: 6 Violations - 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 2
Radon Risk (Moderate)
$337K
Median Home Value
$700
Est. Remediation (0.2% of home value)

Sherwood Water: The Quick Version

  • Your city's water systems recorded 6 violations in the past 5 years.
  • Average lead level: 0.0005 mg/L.
  • Homes built before 1986: 22% - older plumbing may contain lead solder.
  • Estimated remediation: $700 per household.
  • CDC health risk index: 11.93.

Water Systems Serving Sherwood

Federal records list 3 water systems tied to Sherwood, WI. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Sherwood, Wisconsin (population ~3,204), covering 3 community water systems serving approximately 21,638 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

Sherwood water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0005 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 2 (Moderate Risk)

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

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Treatment Technique 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Stage 2 DBP Rule Treatment Technique 2 1
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
54169 6 1 Sherwood Waterworks

All ZIP Codes in Sherwood

  • 54169 - 6 violations ⚠

Data Sources

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

CDC Health Data for Sherwood

10.7%
Asthma (US: 9.8%)
10.3%
Diabetes (US: 10.4%)
15.1%
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 10.7% ↑
Diabetes 10.3% ↓
Mental Health 15.1% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Sherwood

Lead and Copper Rule 4 violations
Treatment Technique
Developmental delays in children, kidney damage
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure

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

How Old Is Sherwood's Housing Stock?

2008
Median Build Year
22%
Built Before 1986
5%
Built Before 1970
PEX or Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

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

Housing Age Profile

The median home in Sherwood was built in 2008, after the federal ban on lead solder in plumbing. Most of the housing stock postdates that cutoff, placing typical plumbing risk on the lower end - though any home built before 1986 still warrants individual testing.

2008
Median Year Built
22%
Pre-1986 (Lead Paint Risk)
5%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (5%) 1970–1986 (17%) Post-1986 (78%)

Most homes in Sherwood were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Sherwood: Remediation Cost in Perspective

For most homeowners in Sherwood, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth - placing this area in the lower tier of the remediation share scale.

Median Home Value
$336,800
Est. Remediation
$700
Remediation as % of home value 0.2%

Remediation costs in Sherwood are relatively low compared to home values. The $150–$1,400 estimated range is a small fraction of median property value. Home values are 46% above the Wisconsin average.

Protecting Children from Lead in Sherwood

22%
Homes Built Before 1986
0.0005
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.

If aggregate samples sit below the EPA action level and just 22% of Sherwood's inventory comes from the pre-rule era, systemic lead is not a dominant local concern. The aggregate still cannot tell a homeowner what is actually flowing from a specific faucet on a specific morning, which is why an in-home draw exists as a separate measurement at the household tier.

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

Frequently Asked Questions

How many water violations does Sherwood have?
Sherwood water systems have a total of 6 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Sherwood water have lead?
The average 90th-percentile lead level in Sherwood is 0.0005 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 Sherwood?
Sherwood is served by 3 public water systems across 1 ZIP code, serving approximately 3,204 people.
How much does it cost to fix water issues in Sherwood?
Estimated remediation costs in Sherwood average $700 per household, ranging from $150 to $1,400. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesWisconsin → Sherwood, WI

How to cite this page

APA ZipCheckup. (2026). Sherwood, WI: 6 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/wi/sherwood/
BibTeX
@misc{zipcheckup-cities-wi-sherwood,
  author = {{ZipCheckup}},
  title  = {{Sherwood, WI: 6 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wi/sherwood/}
}

Page version: August 2026.

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