CITY REPORT WI HEALTH VIOLATIONS: 1

Combined Locks, WI: 1 Health Violation - Home Safety 80/100

Name: Water Quality Data for Combined Locks, WI
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Combined Locks: B.

This ZIP has a few items worth a quick check.

Combined Locks, WI scores in the upper band of the ZipCheckup grade.

How Combined Locks Compares

Combined Locks80/100

Wisconsin avg70/100

National avg73/100

Data: EPA SDWIS

ZIP Codes

Water Systems

ZIPs Linked to Systems with Violations

B · 80

Avg Safety Score

Zone 2

County Radon Potential (Moderate)

$236K

Median Home Value

$300

Est. Remediation (0.1% of home value)

Combined Locks Water: The Quick Version

Your city's water systems recorded 6 violations since 2021.
Average of reported 90th-percentile lead results: 0.0024 mg/L.
Homes built before 1986: 48% - older plumbing may contain lead solder.
Estimated remediation: $300 per household.
Health risk index (ZipCheckup composite of CDC data): 12.26.

Water Systems Serving Combined Locks

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

Kaukauna Utilities
Serves ~17,493 people

B
Darboy Sanitary District 1
Serves ~13,024 people 1 violation

B
Combined Locks Waterworks
Serves ~3,609 people 5 violations

B

Overview

We track home safety data for 1 ZIP code in Combined Locks, Wisconsin (population ~3,633), covering 3 community water systems serving approximately 34,126 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.

Home Safety Score

Average Home Safety Score for Combined Locks: B (80/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor	What It Measures
Water Quality	EPA violations and compliance history
PFAS MCL Screen	UCMR 5 testing against the covered federal MCLs
Radon Risk	EPA radon zone classification
Annual AQI	EPA AirData county-year median with at least 90 observed days

Water Sources

Combined Locks water systems draw from: Groundwater.

Lead & Copper

Average of reported 90th-percentile lead results: 0.0024 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 2.

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
Public Notice Rule	Reporting	6	1
Haloacetic Acids (HAA5)	Disinfection Byproducts	2	1
Total Trihalomethanes (TTHM)	Disinfection Byproducts	2	1
Lead and Copper Rule Revisions	Treatment Technique	2	1

Areas with Most Violations

ZIP Code	Safety Score	Violations	Health-Based	System
54113	B	6	1	Combined Locks Waterworks

All ZIP Codes in Combined Locks

54113 [B] - 6 violations ⚠

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
Lead/copper: EPA Lead and Copper Rule sampling data
Radon: EPA Map of Radon Zones

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

CDC Health Data for Combined Locks

10.6%

Asthma (US: 9.8%)

10.3%

Diabetes (US: 10.4%)

15.5%

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 10.6% ↑

Diabetes 10.3% ↓

Mental Health 15.5% ↑

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

Key Contaminants Detected in Combined Locks

Public Notice Rule 6 violations

Reporting

Haloacetic Acids (HAA5) 2 violations

Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L

Increased cancer risk with long-term exposure above the MCL

Total Trihalomethanes (TTHM) 2 violations

Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L

Increased cancer risk with long-term exposure above the MCL

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

How Old Is Combined Locks's Housing Stock?

1999

Median Build Year

48%

Built Before 1986

37%

Built Before 1970

Copper

Likely Pipe Material

With 48% 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 solder was allowed in new plumbing until the 1986 federal restrictions, which is why older homes in Combined Locks deserve a closer look; the median build year is 1999.

1999

Median Year Built

48%

Pre-1986 (lead solder era; lead paint banned 1978)

37%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (37%) 1970–1986 (11%) Post-1986 (52%)

A significant portion of Combined Locks's housing stock predates 1970, so some homes may have older plumbing materials. Residents in older homes should consider water testing.

Source: U.S. Census Bureau ACS B25034.

Combined Locks: Remediation Cost in Perspective

Here the gap between local home values and the estimated repair bill is wide, so the percentage shown below for Combined Locks stays at or under the 1% mark.

Median Home Value

$235,800

Est. Remediation

$300

Remediation as % of home value 0.1%

Estimated remediation costs in Combined Locks can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 2% above the Wisconsin average.

Protecting Children from Lead in Combined Locks

48%

Homes Built Before 1986

0.0024

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.

Deep Dive Reports

Detailed analysis for Combined Locks, WI

💧

Water Quality

EPA violations, contaminant data, and water system grades

6 EPA violations

⚠️

Lead Risk

Lead levels, housing age, and pipe risk assessment

0.0024 mg/L average of reported 90th-percentile lead results

🌬️

Air Quality

AQI data, wildfire smoke risk, mold risk, and health tips

🏠

Home Safety

Composite safety score, remediation costs, equity trap analysis

80/100 model indicator score

🔧

Infrastructure

Water system age, source indicators, and CO/gas safety

Compare with Nearby Cities

Abbotsford, WI

1 ZIP code · 16 EPA violations

Abrams, WI

1 ZIP code

Adams, WI

1 ZIP code · 4 EPA violations

Adell, WI

1 ZIP code · 1 EPA violation

Afton, WI

1 ZIP code

Frequently Asked Questions

What does the Home Safety Score mean for Combined Locks, WI?

Combined Locks has an average Home Safety Score of 80/100 (Grade B) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 6 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.

How many violations are on record for water systems serving Combined Locks?

EPA records list 6 EPA violations, including 1 health-based violation for Combined Locks water systems. These water-system violations are shown for 1 mapped ZIP code.

Does Combined Locks water have lead?

The average of the reported 90th-percentile lead results across the ZIP codes of Combined Locks is 0.0024 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 does Combined Locks compare to Wisconsin average?

Combined Locks has an average Home Safety Score of 80/100, which is at or above the Wisconsin state average of 70/100 for the same model series.

How many water systems serve Combined Locks?

Our records map 3 water systems to 1 ZIP code in Combined Locks. The related population figure in our data is approximately 3,633 people; it is not a count of people served citywide.

How much does it cost to fix water issues in Combined Locks?

Estimated remediation cost per household in Combined Locks: $300; modeled range $150 to $600. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.

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