Mid-ohio Water Supply District - Old Springfield Road Wtp
EPA ID: OH4901012 · 5,176 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Mid-ohio Water Supply District - Old Springfield Road Wtp (OH4901012): 1 unresolved EPA violation on record. Based on the latest federal compliance data, Mid-ohio Water Supply District - Old Springfield Road Wtp has 1 violation that the EPA has not yet closed - those outstanding findings are part of the enforcement record for a utility that delivers water to approximately 5,176 people throughout its service territory.
Data: EPA SDWIS
Service Area Map
Coverage area for Mid-ohio Water Supply District - Old Springfield Road Wtp Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Mid-ohio Water Supply District - Old Springfield Road Wtp serves a community with a median household income of $82,598 and an estimated 24,162 residents across its service area. Approximately 64% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Mid-ohio Water Supply District - Old Springfield Road Wtp's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Detected Contaminants
How Mid-ohio Water Supply District - Old Springfield Road Wtp compares to EPA limits
What This Means For You
Stage 2 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in Ohio
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Mid-ohio Water Supply District - Old Springfield Road Wtp (EPA ID: OH4901012) is a community water system in Ohio that serves approximately 5,176 people from groundwater sources.
This system serves ZIP code 43140 in London.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 2, 2025 | Stage 2 DBP Rule | Non-health-based | Resolved |
| September 28, 2023 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Failure | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0015 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OH or modeled from parcel and building-footprint data.
- 43140 - London
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Mid-ohio Water Supply District - Old Springfield Road Wtp (OH4901012) on EPA.gov.
Frequently Asked Questions
Is Mid-ohio Water Supply District - Old Springfield Road Wtp water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Mid-ohio Water Supply District - Old Springfield Road Wtp serve?
Mid-ohio Water Supply District - Old Springfield Road Wtp serves approximately 5,176 people across 1 ZIP code in Ohio.
Where does Mid-ohio Water Supply District - Old Springfield Road Wtp get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Mid-ohio Water Supply District - Old Spr..., OH. https://zipcheckup.com/water-system/oh4901012/
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title = {{Mid-ohio Water Supply District - Old Spr..., OH}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/oh4901012/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Mid-ohio Water Supply District - Old Springfield Road Wtp (EPA ID: OH4901012) - request the latest Consumer Confidence Report or ask about specific contaminants.