TOPMOST, KY · Letcher County

MILLSTONE WATER COMPANY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of July 1, 1998. 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 Letcher County, KY.

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 Kentucky’s official records. Always confirm current status with Kentucky before making decisions based on this information.

System facts

System ID (PWSID): KY0670809
System type: Community Water System
Population served: 90
Service connections: 30
Ownership: local government
Water source: groundwater (wells)

MILLSTONE WATER COMPANY is one of 353 community water systems in Kentucky in the 500 or fewer people size category, formerly serving 90 people from groundwater.

EPA's federal records list this system as inactive in 1998; the record below is historical.

As of August 1, 2026, its federal record holds 73 entries between 1979 and 1998, all of which EPA lists as closed. Nothing has been added since 1998.

Of the 73, 65 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 the Total Coliform Rules, inorganic chemicals, and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1998 – June 30, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1998 – April 30, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1998 – March 31, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1998 – February 28, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1998 – January 31, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1997 – December 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1997 – November 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1997 – October 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1997 – September 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1997 – August 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1997 – July 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1997 – June 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1997 – May 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1997 – April 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1997 – March 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1997 – February 28, 1997
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1997 – January 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1996 – December 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1996 – October 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1996 – September 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1996 – July 31, 1996
Resolved
Monitoring, Regular
—
Barium
July 1, 1996 – September 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1996 – June 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1996 – May 31, 1996
Resolved
Monitoring, Regular
—
Barium
April 1, 1996 – June 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1996 – April 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1996 – March 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1996 – February 29, 1996
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1996 – December 31, 1996
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1996 – December 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1995 – November 30, 1995
Resolved
Monitoring, Regular
—
Barium
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1995 – July 31, 1995
Resolved
Monitoring, Regular
—
Barium
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1995 – June 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1995 – May 31, 1995
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1995 – April 30, 1995
Resolved
Monitoring, Regular
—
Barium
April 1, 1995 – June 30, 1995
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Barium
March 29, 1995 – April 28, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1995 – January 31, 1995
Resolved
Monitoring, Check/Repeat/Confirmation
—
Barium
January 1, 1995 – December 31, 1995
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1994 – November 30, 1994
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1993 – August 31, 1993
Resolved
Notification, Public
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Asbestos
January 1, 1993 – December 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1992 – November 30, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Barium
February 14, 1991 – July 13, 1991
Archived
Maximum Contaminant Level Violation, Average
Health-based
Barium
February 1, 1991 – January 31, 1994
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Barium
December 10, 1986 – February 9, 1987
Archived
Maximum Contaminant Level Violation, Average
Health-based
Cadmium
April 9, 1986 – June 8, 1986
Archived
Maximum Contaminant Level Violation, Average
Health-based
Barium
April 1, 1986 – April 30, 1986
Archived
Monitoring, Regular
—
Fluoride
July 1, 1982 – June 30, 1985
Archived
Monitoring, Regular
—
Cadmium
July 1, 1979 – June 30, 1982
Archived
Monitoring, Regular
—
Nitrate
July 1, 1979 – June 30, 1982
Archived
Monitoring, Regular
—
Arsenic
July 1, 1979 – June 30, 1982
Archived
Monitoring, Regular
—
Selenium
July 1, 1979 – June 30, 1982
Archived
Monitoring, Regular
—
Fluoride
July 1, 1979 – June 30, 1982
Archived
Monitoring, Regular
—
Chromium
July 1, 1979 – June 30, 1982
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 1998 – June 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1998 – April 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1998 – March 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1998 – February 28, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1998 – January 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1997 – December 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1997 – November 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1997 – October 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1997 – September 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1997 – August 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1997 – July 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1997 – June 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1997 – May 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1997 – April 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1997 – March 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1997 – February 28, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1997 – January 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1996 – December 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1996 – October 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1996 – September 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1996 – August 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1996 – July 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1996 – September 30, 1996	Monitoring, Regular	Barium	—	Resolved
June 1, 1996 – June 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1996 – May 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1996 – June 30, 1996	Monitoring, Regular	Barium	—	Resolved
April 1, 1996 – April 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1996 – March 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1996 – February 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1996 – December 31, 1996	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1996 – December 31, 1996	Monitoring, Regular	Fluoride	—	Resolved
December 1, 1995 – December 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1995 – November 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Barium	—	Resolved
October 1, 1995 – October 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Barium	—	Resolved
June 1, 1995 – June 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1995 – May 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1995 – April 30, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Barium	—	Resolved
March 29, 1995 – April 28, 1995	Maximum Contaminant Level Violation, Single Sample	Barium	Health-based	Resolved
March 1, 1995 – March 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1995 – January 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1995 – December 31, 1995	Monitoring, Check/Repeat/Confirmation	Barium	—	Resolved
November 1, 1994 – November 30, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 1994 – August 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 1994 – July 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 1993 – August 31, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 1993 – July 31, 1993	Notification, Public	Coliform (TCR)	—	Resolved
July 1, 1993 – July 31, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1993 – July 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 1993 – December 31, 1995	Monitoring, Regular	Asbestos	—	Resolved
November 1, 1992 – November 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 14, 1991 – July 13, 1991	Maximum Contaminant Level Violation, Single Sample	Barium	Health-based	Archived
February 1, 1991 – January 31, 1994	Maximum Contaminant Level Violation, Average	Barium	Health-based	Archived
December 10, 1986 – February 9, 1987	Maximum Contaminant Level Violation, Single Sample	Barium	Health-based	Archived
April 9, 1986 – June 8, 1986	Maximum Contaminant Level Violation, Average	Cadmium	Health-based	Archived
April 1, 1986 – April 30, 1986	Maximum Contaminant Level Violation, Average	Barium	Health-based	Archived
July 1, 1982 – June 30, 1985	Monitoring, Regular	Fluoride	—	Archived
July 1, 1979 – June 30, 1982	Monitoring, Regular	Cadmium	—	Archived
July 1, 1979 – June 30, 1982	Monitoring, Regular	Nitrate	—	Archived
July 1, 1979 – June 30, 1982	Monitoring, Regular	Arsenic	—	Archived
July 1, 1979 – June 30, 1982	Monitoring, Regular	Selenium	—	Archived
July 1, 1979 – June 30, 1982	Monitoring, Regular	Fluoride	—	Archived
July 1, 1979 – June 30, 1982	Monitoring, Regular	Chromium	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

606-447-2411

TOPMOST, KY 418620000