CITY REPORT OH

Delphos, OH: 1 Violation - Home Safety 66/100

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Delphos: C.

A mixed picture - some signals here are worth your attention.

In recent monitoring cycles, Delphos tap water shows a mixed record for OH - several systems have documented violations alongside areas with clean compliance histories.

How Delphos Compares

Delphos66/100
Ohio avg60/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
C · 66
Avg Safety Score
Zone 1
Radon Risk (High)
$156K
Median Home Value
$2,400
Est. Remediation (1.5% of home value)

Key Facts for Delphos Residents

  • Your city's water systems recorded 1 violation in the past 5 years.
  • Homes built before 1986: 76% - older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 14.8 - above typical levels.

Delphos's Water Providers

Water service in Delphos, OH is split across 3 utilities out of 3 tracked federally, each operating its own infrastructure and compliance record.

Overview

We track home safety data for 1 ZIP code in Delphos, Ohio, covering 3 community water systems serving approximately 10,822 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. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Delphos: C (66/100)

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

Delphos water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0000 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
Stage 2 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
45833 C 1 0 Delphos City

All ZIP Codes in Delphos

  • 45833 [C] - 1 violation

Data Sources

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

Delphos Community Health Snapshot

11.1%
Asthma (US: 9.8%)
14.5%
Diabetes (US: 10.4%)
18.3%
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 11.1% ↑
Diabetes 14.5% ↑
Mental Health 18.3% ↑

Vertical line = national average. Above national · Below national

What's in Delphos's Water?

Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk

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

Delphos Infrastructure Age

1968
Median Build Year
76%
Built Before 1986
49%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 76% 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

Decades of residential development in Delphos took place before the two main regulatory milestones that reduced plumbing-era lead risk: the phase-out of lead pipes before 1970, and the federal ban on lead solder in 1986. With a median build year of 1968, the housing stock here is anchored in that earlier period. The distinction between pre-1970 and 1970-to-1986 construction matters: the oldest homes may have lead pipes in the service line and lead solder in the copper joints, while the 1970-to-1986 tier still carries the solder risk even after lead pipes became less common. Together, these two risk layers affect a majority of the residential properties in the city - a fact the aggregate water quality data doesn't directly reveal.

1968
Median Year Built
76%
Pre-1986 (Lead Paint Risk)
49%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (49%) 1970–1986 (27%) Post-1986 (24%)

Over half of homes in Delphos 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.

How Remediation Costs Compare in Delphos

The Delphos equity share sits above the low tier but short of the range where remediation becomes a heavy financial burden - the cost-to-value ratio is moderate, and deliberate planning is the key practical lever for most homeowners.

Median Home Value
$156,000
Est. Remediation
$2,400
Remediation as % of home value 1.5%

Remediation costs are moderate relative to home values in Delphos. The estimated $1,600–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 15% below the Ohio average.

Delphos: Lead Risk & Vulnerable Populations

76%
Homes Built Before 1986

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.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 76% of Delphos stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

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

Delphos: NFIP Claim Records and Water-Quality Context

54
Total FEMA Flood Claims
$8,402
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Delphos contains 54 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $8,402. Among ZIP codes with claim records, 100% 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>$2,400</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.

What You Can Do in Delphos

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for Stage 2 DBP Rule can reduce the most common contaminant found in Delphos's water.
  3. Check your home's plumbing. With 76% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Delphos, OH?
Delphos has an average Home Safety Score of 66/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 1 EPA violation has been recorded. Check individual ZIP code reports for component details.
How many water violations does Delphos have?
Delphos water systems have a total of 1 EPA violation. Violations are tracked across 1 ZIP code.
How does Delphos compare to Ohio average?
Delphos has an average Home Safety Score of 66/100, which is above the Ohio state average of 60/100 for the same model series.
How many water systems serve Delphos?
Delphos is served by 3 public water systems across 1 ZIP code, serving approximately 10,822 people.
How much does it cost to fix water issues in Delphos?
Estimated remediation costs in Delphos average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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How to cite this page

APA ZipCheckup. (2026). Delphos, OH: 1 Violation - Home Safety 66/100. https://zipcheckup.com/cities/oh/delphos/
BibTeX
@misc{zipcheckup-cities-oh-delphos,
  author = {{ZipCheckup}},
  title  = {{Delphos, OH: 1 Violation - Home Safety 66/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/oh/delphos/}
}

Page version: August 2026.

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