Is Seaman, OH Tap Water Safe to Drink?
Graded B+, with 9 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
81.4/100
waterverge.com Seaman, OH — Water Quality Report
Seaman's drinking water received a grade of B+ (81.4 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,996 residents using purchased ground water.
Lead levels were measured at 0.9 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 13 violations on record, including 1 health-based violation. 9 remain unresolved.
What to know about Seaman's water
Seaman ranks #234 out of 511 cities in Ohio for water quality, placing it mid-range in the state.
Seaman purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Seaman may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Seaman, OH water safe to drink?
Seaman's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,996 residents using groundwater (wells).
Recent water quality updates for Seaman
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Seaman's water quality assessment. Grade: B+ (81.4/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-4424). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4360). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Seaman's water supply.
Well within EPA limits.
Violation history
Seaman's water system has 13 total violations on record, including 1 health-based violation. 9 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Adams County has experienced 6 federally declared disasters since 1968. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Seaman's water come from?
Seaman's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,996 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Seaman residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Seaman's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Seaman's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Drought conditions
D1 — moderate droughtAdams County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Adams County has experienced 6 federally declared disasters since 1968. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.9 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Seaman compares by contaminant
Explore where Seaman ranks among all Ohio cities for specific contaminants.
Water source & infrastructure
Where Seaman's water comes from
Seaman purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Seaman's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 1,996 people through 2 water systems.
Water systems serving Seaman
| System Name | PWSID | Population | Source |
|---|---|---|---|
| WINCHESTER PUBLIC WATER SYSTEM | OH0100603 | 1,052 | GWP |
| SEAMAN VILLAGE PWS | OH0100303 | 944 | GWP |
How Seaman compares
Full Ohio rankings →Seaman's score of 81.4/100 is above the average of 58/100 among major Ohio cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Ohio rankings →About Seaman, OH
Wikipedia →Seaman is a village in Scott Township, Adams County, Ohio, United States. The population was 973 at the 2020 census.
Learn more about your water
Guides and resources related to Seaman's water quality findings.
Explore water quality across Adams
Frequently asked questions
Is Seaman, OH tap water safe to drink?
Seaman's water quality earned a grade of B+ (81.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #234 out of 511 cities tested in Ohio.
What contaminants are in Seaman's water?
Lead was measured at 0.9 ppb (90th percentile). 13 violations are on record.
How is Seaman's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Seaman?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Seaman's water come from?
Seaman's water is sourced from Purchased ground water. The city has 2 water systems serving approximately 1,996 residents.
What health violations has Seaman's water system had?
Seaman has 1 health-based violation on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.
Is Seaman's groundwater at risk of contamination?
Seaman uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 13 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Seaman's water compare to other cities?
Seaman ranks #234 out of 511 cities in Ohio (better than 54% of state cities) and #7477 out of 15744 cities nationally (53th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.