CITY REPORT OH

Marengo, OH: 2 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 1
County Radon Potential (High)
$246K
Median Home Value
$500
Est. Remediation (0.2% of home value)

Key Facts for Marengo Residents

  • Your city's water systems recorded 2 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0024 mg/L.
  • Homes built before 1986: 47% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 14.88.

Marengo's Water Providers

More than one public water system is linked to Marengo, OH: federal records tie 2 systems to the area, and the 2 with the largest reported service populations are shown below. Which of them supplies a particular address depends on where the property sits, and a water bill or the utility can confirm it.

Overview

We track home safety data for 1 ZIP code in Marengo, Ohio (population ~6,339), covering 2 community water systems serving approximately 152,079 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. The available record reports no health-based violations for this measured scope.

Water Sources

Marengo water systems draw from: Groundwater, Surface water.

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 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
Consumer Confidence Rule Reporting 2 1
Revised Total Coliform Rule Microbiological 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
43334 — 2 0 Del-Company Water Company, Inc.

All ZIP Codes in Marengo

  • 43334 - 2 violations recorded for mapped water systems

Data Sources

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

Marengo Community Health Snapshot

11.1%
Asthma (US: 9.8%)
13.8%
Diabetes (US: 10.4%)
18.1%
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 11.1% ↑
Diabetes 13.8% ↑
Mental Health 18.1% ↑

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

What's in Marengo's Water?

Consumer Confidence Rule 2 violations
Reporting
Revised Total Coliform Rule 2 violations
Microbiological
Indicates possible bacterial contamination

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

Marengo Infrastructure Age

1980
Median Build Year
47%
Built Before 1986
19%
Built Before 1970
Copper
Likely Pipe Material

With 47% 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

Buyers and renters in Marengo can ask a simple question of any home: was it built before 1986? The citywide median of 1980 will not answer it.

1980
Median Year Built
47%
Pre-1986 (lead solder era; lead paint banned 1978)
19%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (19%) 1970–1986 (28%) Post-1986 (53%)

Most homes in Marengo were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Marengo

Compared with typical property prices, the remediation estimate for Marengo is small in percentage terms - at or under one percent.

Median Home Value
$245,700
Est. Remediation
$500
Remediation as % of home value 0.2%

Estimated remediation costs in Marengo can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 34% above the Ohio average.

Marengo: Lead Risk & Vulnerable Populations

47%
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.

Marengo: NFIP Claim Records and Water-Quality Context

3
Total FEMA Flood Claims
$372
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Marengo contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $372. 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 $500 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 Marengo?
EPA records list 2 EPA violations for Marengo water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Marengo water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Marengo 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 many water systems serve Marengo?
Our records map 2 water systems to 1 ZIP code in Marengo. The related population figure in our data is approximately 6,339 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Marengo?
Estimated remediation cost per household in Marengo: $500; modeled range $300 to $800. 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). Marengo, OH: 2 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/oh/marengo/
BibTeX
@misc{zipcheckup-cities-oh-marengo,
  author = {{ZipCheckup}},
  title  = {{Marengo, OH: 2 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/oh/marengo/}
}

Page version: October 2026.

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