Derwent, OH: High Radon Risk — 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
For households across Derwent, below-average water safety data and recurring compliance violations documented by OH EPA records make it worthwhile to verify the specific system serving your address — system-level detail is the most actionable reference point available.
How Derwent Compares
Data: EPA SDWIS Last verified: 2026-06-03
Derwent Water: The Quick Version
- Estimated remediation: $3,000 per household.
- CDC health risk index: 15.59 — above typical levels.
Water Systems Serving Derwent
For most households in Derwent, OH, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Derwent, Ohio (population ~69), covering 1 community water system serving approximately 447 people region-wide.
No EPA violations recorded across any ZIP codes in Derwent — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Derwent: D (53/100)
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
Derwent water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Derwent
- 0 ZIP codes 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 43733 | D | PLEASANT CITY, VILLAGE OF | 447 |
All ZIP Codes in Derwent
- 43733 [D]
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
Updated daily.
CDC Health Data for Derwent
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Derwent's Housing Stock?
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
Why does housing age matter for water safety? Homes built before 1986 may have lead-soldered copper plumbing joints — a practice banned that year. Derwent's median build year of 2005 places much of the city's housing in the post-ban era, reducing that specific risk pathway for most residents.
Most homes in Derwent 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.
Climate-Related Water Risk for Derwent
Flood exposure in Derwent is meaningful by NFIP measures — 9 claims on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
Derwent has a moderate flood history with 9 FEMA claims averaging $14,439 per payout. 100% 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>$3,000</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 Derwent
- 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.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Derwent, OH