CITY REPORT OH

Troy, OH: 10 Violations — 56/100 (2026)

2 ZIP codes · 9 water systems · Updated 2026-06-03

Water systems across Troy produce average compliance results for OH overall — pockets with documented violations exist, and the variation between areas makes checking the specific system serving a given address the most useful step for residents here.

How Troy Compares

Troy56/100
Ohio avg60/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

2
ZIP Codes
9
Water Systems
2
ZIPs with Violations
C · 56
Avg Safety Score
Zone 1
Radon Risk (High)
$234K
Median Home Value
$1,800
Est. Remediation (0.8% of home value)

What You Should Know About Troy Water

  • Your city's water systems recorded 10 violations in the past 5 years.
  • Average lead level: 0.0007 mg/L.
  • Estimated remediation: $1,800 per household.
  • CDC health risk index: 13.62 — above typical levels.

Who Supplies Your Water in Troy

3 independent water providers serve Troy, OH — 9 systems appear in federal records.

TROY CITY PWS
Serves ~26,305 people · 5 violations
53
/100
Nawa
Serves ~24,766 people · 5 violations
53
/100
Piqua City Public Water System
Serves ~20,354 people · 5 violations
53
/100

Overview

We track water quality and home safety data for 2 ZIP codes in Troy, Ohio (population ~37,274), covering 9 community water systems serving approximately 79,897 people region-wide.

2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.

Home Safety Score

Average Home Safety Score for Troy: C (56/100)

The score combines three factors:

Factor What It Measures
Water Quality EPA violations and compliance history
Lead Levels 90th percentile lead concentration vs EPA action level
Radon Risk EPA radon zone classification

Water Sources

Troy water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0007 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

  • Zone 1 (High): 2 ZIP codes
  • Zone 2 (Moderate): 0 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

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

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 9 2
Surface Water Treatment Rule Treatment Technique 6 2

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
45373 D 5 0 Miami Company-camp Troy Public Water System
45374 C 5 0 Miami Company-camp Troy Public Water System

All ZIP Codes in Troy

  • 45373 [D] — 5 violations
  • 45374 [C] — 5 violations

Data Sources

Updated daily.

Health Outcomes in Troy

10.8%
Asthma (US: 9.8%)
12.7%
Diabetes (US: 10.4%)
16.9%
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 10.8% ↑
Diabetes 12.7% ↑
Mental Health 16.9% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Troy Water

Total Trihalomethanes (TTHM) 9 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Surface Water Treatment Rule 6 violations
Treatment Technique
Pathogens may not be adequately removed

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

Cost Context: What Remediation Means for Troy Homeowners

Because property values in Troy comfortably exceed estimated remediation costs, the equity impact here is proportionally small.

Median Home Value
$234,400
Est. Remediation
$1,800
Remediation as % of home value 0.8%

Remediation costs in Troy are relatively low compared to home values. The $1,200–$2,400 estimated range is a small fraction of median property value. Home values are 28% above the Ohio average.

Lead Exposure Risk for Children in Troy

0.0007
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.

Lead risk in Troy appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

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

Flood & Climate Risk in Troy

Within the NFIP's national dataset, Troy falls in moderate-exposure territory — 89 documented incidents spanning multiple decades, with 50% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.

89
Total FEMA Flood Claims
$16,497
Avg Claim Payout
50%
ZIPs in FEMA Flood Zones
~4
Est. Claims/Year

Troy has a moderate flood history with 89 FEMA claims averaging $16,497 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.

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. Flood damage can add significantly to the estimated <strong>$1,800</strong> remediation cost per household.

Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.

Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.

What You Can Do in Troy

  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 Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Troy's water.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

Is the water safe to drink in Troy, OH?
Troy has an average water safety score of 56/100 (Grade C). 10 EPA violations have been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Troy have?
Troy water systems have a total of 10 EPA violations. Violations are tracked across 2 ZIP codes.
Does Troy water have lead?
The average 90th-percentile lead level in Troy is 0.0007 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 does Troy compare to Ohio average?
Troy has an average water safety score of 56/100, which is below the Ohio state average of 60/100.
How many water systems serve Troy?
Troy is served by 9 public water systems across 2 ZIP codes, serving approximately 37,274 people.
How much does it cost to fix water issues in Troy?
Estimated remediation costs in Troy average $1,800 per household, ranging from $1,200 to $2,400. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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