F19/100
Sardinia Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,428 residents · Ohio
What's In Sardinia's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 141.00 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
6
Violations (last 5yr)
2
Unresolved
2
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: October 20, 2023 – October 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Unresolved
Surface water treatment technique failure
TIER 1 — URGENTResolved
Violation related to Nitrate
When: August 1, 2022 – August 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – November 7, 2022Enforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: June 1, 2022 – June 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Surface water treatment technique failure
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
WAYNOKA REGIONAL WATER AND SEWER DIST
Population Served
2,428
Water Source
Surface Water
System ID
OH0800811
Frequently Asked Questions About Sardinia Water
Is Sardinia tap water safe to drink?
Sardinia, Ohio tap water receives a grade of F (19/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 30 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Sardinia's water?
Of the 32 contaminants tested in Sardinia's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Sardinia have any water quality violations?
Yes, Sardinia has 30 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, TT, MCL. 10 of these are health-based violations, which are the most serious category.
Do I need a water filter in Sardinia?
Based on EPA data, using a water filter in Sardinia is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Sardinia's tap water come from?
Sardinia's drinking water is sourced from surface water and supplied by WAYNOKA REGIONAL WATER AND SEWER DIST. The system serves approximately 2,428 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Sardinia's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Sardinia's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Sardinia's water compare to other cities in Ohio?
Sardinia's water quality score of 19/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Sardinia's water quality?
If you have concerns about Sardinia's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (WAYNOKA REGIONAL WATER AND SEWER DIST) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.