DEL-CO WATER COMPANY, INC.
Ohio - Community Water System - PWSID: OH2101412
System Information
| PWSID | OH2101412 |
| System Name | DEL-CO WATER COMPANY, INC. |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jun 2, 2001 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Ohio |
| City | DELAWARE |
| ZIP Code | 43015 |
| Address | 6658 OLENTANGY RIVER RD |
| Organization | MARZLUF, GLENN |
| Phone | 740-201-0125 |
Population & Service
| Population Served | 150,000 |
| Service Connections | 56,000 |
Drinking Water Violations (108)
This water system has 108 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2014 | Jun 30, 2014 | MR | No | No | - | TT | - | Resolved | Jun 30, 2014 | - | |
| Jan 1, 2014 | Jun 30, 2014 | MR | No | No | - | TT | - | Resolved | Jun 30, 2014 | - | |
| Jan 1, 2014 | Jun 30, 2014 | MR | No | No | - | TT | - | Resolved | Jun 30, 2014 | - | |
| Jan 1, 2014 | Jun 30, 2014 | MR | No | No | - | TT | - | Resolved | Jun 30, 2014 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | No | - | TT | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | No | - | TT | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | No | - | TT | - | Resolved | Dec 31, 2012 | - | |
| May 1, 2001 | Jul 31, 2001 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Jul 31, 2001 | - | |
| May 1, 2001 | Jul 31, 2001 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2001 | - | |
| May 1, 2001 | Jul 31, 2001 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Jul 31, 2001 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | - | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | - | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | - | - | Resolved | Oct 31, 1998 | - | |
| Aug 1, 1998 | Oct 31, 1998 | MR | No | Yes | - | - | - | Resolved | Oct 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.5 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.5 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.5 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.5 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | - | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | - | - | Resolved | Jul 31, 1998 | - | |
| May 1, 1998 | Jul 31, 1998 | MR | No | Yes | - | - | - | Resolved | Jul 31, 1998 | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.