Is Richwood, OH Tap Water Safe to Drink?
Graded B-, with 11 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
74/100
waterverge.com Richwood, OH — Water Quality Report
Richwood's drinking water received a grade of B- (74 out of 100), indicating fair water quality. The city's 1 water system serves approximately 2,316 residents using groundwater.
Lead levels were measured at 0.7 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 20 violations on record, including 1 health-based violation. 11 remain unresolved.
What to know about Richwood's water
Richwood ranks #381 out of 511 cities in Ohio for water quality, placing it below average in the state.
Richwood relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Richwood may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 10 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Richwood, OH water safe to drink?
Richwood's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (74/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,316 residents using groundwater (wells).
Recent water quality updates for Richwood
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Richwood's water quality assessment. Grade: B- (74/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Public Notice.
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Federal disaster declaration (FEMA DR-3250). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Richwood's water supply.
Well within EPA limits.
Violation history
Richwood's water system has 20 total violations on record, including 1 health-based violation. 11 remain unresolved. 10 violations were issued in the last 5 years.
Flood & environmental risk
Union County has experienced 1 federally declared disaster since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Scioto River At La Rue, Scioto River Near Prospect.
Where does Richwood's water come from?
Richwood's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,316 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Scioto River At La Rue (river), Scioto River Near Prospect (river).
What Richwood residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Richwood'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.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Union County has experienced 1 federally declared disaster since 2005. 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. | 0.7 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Richwood compares by contaminant
Explore where Richwood ranks among all Ohio cities for specific contaminants.
Water source & infrastructure
Where Richwood's water comes from
Richwood's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 2,316 people through 1 water system.
Water bodies near Richwood
Richwood is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Richwood
| System Name | PWSID | Population | Source |
|---|---|---|---|
| RICHWOOD VILLAGE PWS | OH8000412 | 2,316 | GW |
How Richwood compares
Full Ohio rankings →Richwood's score of 74/100 is above the average of 58/100 among major Ohio cities. It outscores 6 of 10 nearby cities.
Nearby cities
View Ohio rankings →About Richwood, OH
Learn more about your water
Guides and resources related to Richwood's water quality findings.
Explore water quality across Union
Frequently asked questions
Is Richwood, OH tap water safe to drink?
Richwood's water quality earned a grade of B- (74/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #381 out of 511 cities tested in Ohio.
What contaminants are in Richwood's water?
Lead was measured at 0.7 ppb (90th percentile). 20 violations are on record.
How is Richwood'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 Richwood?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Richwood's water come from?
Richwood's water is sourced from Groundwater. The city has 1 water system serving approximately 2,316 residents.
What health violations has Richwood's water system had?
Richwood has 1 health-based violation on record. The most recent violation was recorded in June 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 11 violations remain unresolved.
Is Richwood's groundwater at risk of contamination?
Richwood 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 20 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 Richwood's water compare to other cities?
Richwood ranks #381 out of 511 cities in Ohio (better than 25% of state cities) and #9958 out of 15744 cities nationally (37th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Richwood's small water system affect quality?
Richwood's system serves approximately 2,316 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 20 violations on record.