DELAWARE, OH · Delaware County
DEL-CO WATER COMPANY, INC. Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.
System facts
- System ID (PWSID)
- OH2101412
- System type
- Community Water System
- Population served
- 150,000
- Service connections
- 56,000
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Water Quality Parameter M/R
—Lead and Copper Rule
January 1, 2014 – June 30, 2014
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—LASSO
May 1, 2001 – July 31, 2001
ResolvedMonitoring, Regular
—Atrazine
August 1, 1998 – October 31, 1998
ResolvedMonitoring, Regular
—LASSO
August 1, 1998 – October 31, 1998
ResolvedMonitoring, Regular
—OXAMYL
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Picloram
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Carbofuran
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—2,4-D
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Benzo(a)pyrene
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—BHC-GAMMA
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Simazine
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Atrazine
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—LASSO
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Pentachlorophenol
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Methoxychlor
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Diquat
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Endothall
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
May 1, 1998 – July 31, 1998
ResolvedMonitoring, Regular
—Asbestos
January 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Nitrite
January 1, 1993 – June 30, 1993
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2014 – June 30, 2014 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2012 – December 31, 2012 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| May 1, 2001 – July 31, 2001 | Monitoring, Regular | LASSO | — | Resolved |
| August 1, 1998 – October 31, 1998 | Monitoring, Regular | Atrazine | — | Resolved |
| August 1, 1998 – October 31, 1998 | Monitoring, Regular | LASSO | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | OXAMYL | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Picloram | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Carbofuran | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | 2,4-D | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Simazine | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Atrazine | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | LASSO | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Methoxychlor | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Diquat | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Endothall | — | Resolved |
| May 1, 1998 – July 31, 1998 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 1993 – June 30, 1993 | Monitoring, Regular | Asbestos | — | Resolved |
| January 1, 1993 – June 30, 1993 | Monitoring, Regular | Nitrite | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 18, 2014State Public Notification received8 linked violations
- November 9, 2009Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
- May 22, 2009Federal Final Administrative Order issuedgeneral compliance action — not tied to a specific violation on record
Contact
MARZLUF, GLENN
740-201-0125
DELAWARE, OH 43015