CALEDONIA, OH · Marion County

CALEDONIA WATER DEPARTMENT Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 1, 1993. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Marion County, OH.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): OH5100011
System type: Community Water System
Population served: 800
Service connections: 319
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

CALEDONIA WATER DEPARTMENT is one of 558 community water systems in Ohio in the 501 to 3,300 people size category, formerly serving 800 people from surface water.

EPA's federal records list this system as inactive in 1993; the record below is historical.

As of August 1, 2026, its federal record holds 15 entries between 1987 and 1991, all of which EPA lists as closed. Nothing has been added since 1991.

Of the 15, 13 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

Monitoring, Regular
—
Endrin
August 1, 1991 – July 31, 1992
Archived
Monitoring, Regular
—
2,4,5-TP
August 1, 1991 – July 31, 1992
Archived
Monitoring, Regular
—
2,4-D
August 1, 1991 – July 31, 1992
Archived
Monitoring, Regular
—
Toxaphene
August 1, 1991 – July 31, 1992
Archived
Monitoring, Regular
—
Methoxychlor
August 1, 1991 – July 31, 1992
Archived
Monitoring, Regular
—
BHC-GAMMA
August 1, 1991 – July 31, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1991 – May 31, 1991
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 1991 – May 31, 1991
Archived
Monitoring, Regular
—
Endrin
August 1, 1988 – July 31, 1989
Archived
Monitoring, Regular
—
2,4,5-TP
August 1, 1988 – July 31, 1989
Archived
Monitoring, Regular
—
2,4-D
August 1, 1988 – July 31, 1989
Archived
Monitoring, Regular
—
Toxaphene
August 1, 1988 – July 31, 1989
Archived
Monitoring, Regular
—
Methoxychlor
August 1, 1988 – July 31, 1989
Archived
Monitoring, Regular
—
BHC-GAMMA
August 1, 1988 – July 31, 1989
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 1987 – January 31, 1987
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
August 1, 1991 – July 31, 1992	Monitoring, Regular	Endrin	—	Archived
August 1, 1991 – July 31, 1992	Monitoring, Regular	2,4,5-TP	—	Archived
August 1, 1991 – July 31, 1992	Monitoring, Regular	2,4-D	—	Archived
August 1, 1991 – July 31, 1992	Monitoring, Regular	Toxaphene	—	Archived
August 1, 1991 – July 31, 1992	Monitoring, Regular	Methoxychlor	—	Archived
August 1, 1991 – July 31, 1992	Monitoring, Regular	BHC-GAMMA	—	Archived
May 1, 1991 – May 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1991 – May 31, 1991	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1988 – July 31, 1989	Monitoring, Regular	Endrin	—	Archived
August 1, 1988 – July 31, 1989	Monitoring, Regular	2,4,5-TP	—	Archived
August 1, 1988 – July 31, 1989	Monitoring, Regular	2,4-D	—	Archived
August 1, 1988 – July 31, 1989	Monitoring, Regular	Toxaphene	—	Archived
August 1, 1988 – July 31, 1989	Monitoring, Regular	Methoxychlor	—	Archived
August 1, 1988 – July 31, 1989	Monitoring, Regular	BHC-GAMMA	—	Archived
January 1, 1987 – January 31, 1987	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

July 15, 1991State Public Notification requested2 linked violations
July 17, 1989State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 17, 1989State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 28, 1988State Formal Notice of Violation issued6 linked violations
February 5, 1987State Public Notification received1 linked violation
December 14, 1984State Site Visit for enforcement purposesgeneral compliance action — not tied to a specific violation on record
August 10, 1981State Unresolved2 linked violations
March 18, 1981State Public Notification received1 linked violation

Last known contact on file (system is inactive)

Not on record

Phone not on record

CALEDONIA, OH 43314