| Sep 1, 2025 |
Sep 30, 2025 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
Sep 30, 2025 |
Surface Water Treatment Rule |
| Aug 1, 2025 |
Aug 31, 2025 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
Aug 31, 2025 |
Surface Water Treatment Rule |
| May 1, 2025 |
May 31, 2025 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
May 31, 2025 |
Surface Water Treatment Rule |
| May 1, 2025 |
May 31, 2025 |
Revised Total Coliform Rule |
MON |
No |
Yes |
— |
— |
— |
Resolved |
May 31, 2025 |
Revised Total Coliform Rule |
| May 26, 2024 |
— |
Revised Total Coliform Rule |
TT |
Yes |
No |
— |
— |
— |
Resolved |
May 15, 2024 |
Revised Total Coliform Rule |
| Jul 1, 2023 |
Jul 31, 2023 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Jul 31, 2023 |
Surface Water Treatment Rule |
| Sep 1, 2022 |
Sep 30, 2022 |
Revised Total Coliform Rule |
MON |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2022 |
Revised Total Coliform Rule |
| May 1, 2022 |
May 31, 2022 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
May 31, 2022 |
Surface Water Treatment Rule |
| Sep 1, 2021 |
Sep 30, 2021 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2021 |
Surface Water Treatment Rule |
| Jun 1, 2021 |
Jun 30, 2021 |
Revised Total Coliform Rule |
MON |
No |
Yes |
— |
— |
— |
Resolved |
Jun 30, 2021 |
Revised Total Coliform Rule |
| Aug 1, 2020 |
Aug 31, 2020 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Aug 31, 2020 |
Surface Water Treatment Rule |
| Aug 1, 2020 |
Aug 31, 2020 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Aug 31, 2020 |
Surface Water Treatment Rule |
| Sep 1, 2019 |
Sep 30, 2019 |
Revised Total Coliform Rule |
MON |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2019 |
Revised Total Coliform Rule |
| Jul 1, 2019 |
Sep 30, 2019 |
Chlorine |
MR |
No |
Yes |
— |
4.0 mg/L |
— |
Resolved |
Sep 30, 2019 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| May 1, 2017 |
May 31, 2017 |
Revised Total Coliform Rule |
MON |
No |
Yes |
— |
— |
— |
Resolved |
May 31, 2017 |
Revised Total Coliform Rule |
| Sep 1, 2016 |
Sep 30, 2016 |
Revised Total Coliform Rule |
MON |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2016 |
Revised Total Coliform Rule |
| Jan 1, 2016 |
Dec 31, 2016 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 2016 |
Nitrate Rule |
| May 1, 2015 |
May 31, 2015 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
May 31, 2015 |
Surface Water Treatment Rule |
| Sep 1, 2014 |
Sep 30, 2014 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2014 |
Surface Water Treatment Rule |
| Jan 1, 2004 |
Dec 31, 2004 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 2004 |
Nitrate Rule |
| Feb 1, 2003 |
Feb 28, 2003 |
Surface Water Treatment Rule |
MR |
No |
No |
— |
— |
— |
Archived |
Feb 28, 2003 |
Surface Water Treatment Rule |
| Feb 1, 2003 |
Feb 28, 2003 |
Surface Water Treatment Rule |
MR |
No |
No |
— |
— |
— |
Archived |
Feb 28, 2003 |
Surface Water Treatment Rule |
| Jan 1, 2003 |
Jan 31, 2003 |
Surface Water Treatment Rule |
MR |
No |
No |
— |
— |
— |
Archived |
Jan 31, 2003 |
Surface Water Treatment Rule |
| Sep 1, 2002 |
Sep 30, 2002 |
Coliform (TCR) |
MR |
No |
No |
— |
5% of samples |
— |
Archived |
Sep 30, 2002 |
Total Coliform Rule |
| May 1, 2002 |
May 31, 2002 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
May 31, 2002 |
Surface Water Treatment Rule |
| Jan 1, 2002 |
Dec 31, 2002 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 2002 |
Nitrate Rule |
| Sep 1, 2001 |
Sep 30, 2001 |
Surface Water Treatment Rule |
MR |
No |
No |
— |
— |
— |
Archived |
Sep 30, 2001 |
Surface Water Treatment Rule |
| Aug 1, 2001 |
Aug 31, 2001 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
Aug 31, 2001 |
Surface Water Treatment Rule |
| Jul 1, 2001 |
Jul 31, 2001 |
Surface Water Treatment Rule |
MR |
No |
No |
— |
— |
— |
Archived |
Jul 31, 2001 |
Surface Water Treatment Rule |
| Jun 1, 2001 |
Jun 30, 2001 |
Surface Water Treatment Rule |
MR |
No |
No |
— |
— |
— |
Archived |
Jun 30, 2001 |
Surface Water Treatment Rule |
| Aug 1, 2000 |
Aug 31, 2000 |
Coliform (TCR) |
MR |
No |
No |
— |
5% of samples |
— |
Archived |
Aug 31, 2000 |
Total Coliform Rule |
| Aug 1, 1998 |
Aug 31, 1998 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
Aug 31, 1998 |
Surface Water Treatment Rule |
| Jun 1, 1997 |
Jun 30, 1997 |
Coliform (TCR) |
MR |
No |
Yes |
— |
5% of samples |
— |
Archived |
Jun 30, 1997 |
Total Coliform Rule |
| Sep 1, 1996 |
Sep 30, 1996 |
Coliform (TCR) |
MR |
No |
Yes |
— |
5% of samples |
— |
Archived |
Sep 30, 1996 |
Total Coliform Rule |
| Jun 1, 1996 |
Jun 30, 1996 |
Coliform (TCR) |
MR |
No |
Yes |
— |
5% of samples |
— |
Archived |
Jun 30, 1996 |
Total Coliform Rule |
| Jan 1, 1996 |
Dec 31, 1996 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1996 |
Nitrate Rule |
| Jan 1, 1996 |
Dec 31, 1996 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1996 |
Nitrate Rule |
| Jan 1, 1996 |
Dec 31, 1996 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1996 |
Nitrate Rule |
| Jan 1, 1996 |
Dec 31, 1996 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1996 |
Nitrate Rule |
| Sep 1, 1995 |
Sep 30, 1995 |
Coliform (TCR) |
MR |
No |
Yes |
— |
5% of samples |
— |
Archived |
Sep 30, 1995 |
Total Coliform Rule |
| Jan 1, 1995 |
Dec 31, 1995 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1995 |
Nitrate Rule |
| Jan 1, 1995 |
Dec 31, 1995 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1995 |
Nitrate Rule |
| Jan 1, 1995 |
Dec 31, 1995 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1995 |
Nitrate Rule |
| Sep 1, 1994 |
Sep 30, 1994 |
Coliform (TCR) |
MR |
No |
Yes |
— |
5% of samples |
— |
Archived |
Sep 30, 1994 |
Total Coliform Rule |
| Jan 1, 1994 |
Dec 31, 1994 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1994 |
Nitrate Rule |
| Jan 1, 1994 |
Dec 31, 1994 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1994 |
Nitrate Rule |
| Jan 1, 1994 |
Dec 31, 1994 |
Nitrate |
MR |
No |
Yes |
— |
10 mg/L |
— |
Resolved |
Dec 31, 1994 |
Nitrate Rule |
| Jun 1, 1993 |
Jun 30, 1993 |
Coliform (TCR) |
MR |
No |
Yes |
— |
5% of samples |
— |
Archived |
Jun 30, 1993 |
Total Coliform Rule |
| Jan 1, 1993 |
Dec 31, 1995 |
Nitrite |
MR |
No |
Yes |
— |
1 mg/L |
— |
Resolved |
Dec 31, 1995 |
Nitrate Rule |
| Jan 1, 1993 |
Dec 31, 1995 |
Nitrite |
MR |
No |
Yes |
— |
1 mg/L |
— |
Resolved |
Dec 31, 1995 |
Nitrate Rule |