| Oct 1, 2025 |
Dec 31, 2025 |
TTHM |
MCL |
Yes |
No |
.085 MG/L |
0.080 mg/L |
.08 |
Unaddressed |
— |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2025 |
Dec 31, 2025 |
TTHM |
MCL |
Yes |
No |
.085 MG/L |
0.080 mg/L |
.08 |
Unaddressed |
— |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 |
Mar 31, 2021 |
TTHM |
MCL |
Yes |
No |
.098 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 |
Mar 31, 2021 |
TTHM |
MCL |
Yes |
No |
.098 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 |
Mar 31, 2021 |
TTHM |
MCL |
Yes |
No |
.098 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 |
Mar 31, 2021 |
TTHM |
MCL |
Yes |
No |
.098 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 |
Sep 30, 2018 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2018 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 |
Sep 30, 2018 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2018 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 |
Sep 30, 2018 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2018 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 |
Sep 30, 2018 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2018 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 |
Sep 30, 2013 |
TTHM |
MCL |
Yes |
No |
.086 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2013 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 |
Sep 30, 2013 |
TTHM |
MCL |
Yes |
No |
.086 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2013 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 |
Sep 30, 2013 |
TTHM |
MCL |
Yes |
No |
.086 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2013 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 |
Sep 30, 2013 |
TTHM |
MCL |
Yes |
No |
.086 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2013 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 |
Sep 30, 2013 |
TTHM |
MCL |
Yes |
No |
.086 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2013 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 |
Sep 30, 2013 |
TTHM |
MCL |
Yes |
No |
.086 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2013 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2012 |
Sep 30, 2012 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2012 |
Radionuclides and Revised Rad Rule |
| Jul 1, 2012 |
Sep 30, 2012 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2012 |
Radionuclides and Revised Rad Rule |
| Jul 1, 2012 |
Sep 30, 2012 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2012 |
Radionuclides and Revised Rad Rule |
| Jul 1, 2012 |
Sep 30, 2012 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Sep 30, 2012 |
Radionuclides and Revised Rad Rule |
| Apr 1, 2012 |
Jun 30, 2012 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Jun 30, 2012 |
Radionuclides and Revised Rad Rule |
| Apr 1, 2012 |
Jun 30, 2012 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Jun 30, 2012 |
Radionuclides and Revised Rad Rule |
| Apr 1, 2012 |
Jun 30, 2012 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Jun 30, 2012 |
Radionuclides and Revised Rad Rule |
| Apr 1, 2012 |
Jun 30, 2012 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Jun 30, 2012 |
Radionuclides and Revised Rad Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Mar 31, 2012 |
Radionuclides and Revised Rad Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Mar 31, 2012 |
Radionuclides and Revised Rad Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2012 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2012 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2012 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2012 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
TTHM |
MCL |
Yes |
No |
.087 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2012 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Mar 31, 2012 |
Radionuclides and Revised Rad Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
Combined Uranium |
MR |
No |
Yes |
— |
30 ug/L |
— |
Resolved |
Mar 31, 2012 |
Radionuclides and Revised Rad Rule |
| Jan 1, 2012 |
— |
Public Notice |
Other |
No |
No |
— |
— |
— |
Resolved |
Jun 28, 2012 |
Public Notice Rule and Revised PN Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
Combined Uranium |
MR |
No |
Yes |
— |
30 ug/L |
— |
Resolved |
Mar 31, 2012 |
Radionuclides and Revised Rad Rule |
| Jan 1, 2012 |
Mar 31, 2012 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Mar 31, 2012 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
TTHM |
MCL |
Yes |
No |
.083 MG/L |
0.080 mg/L |
.08 |
Archived |
Dec 31, 2011 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
TTHM |
MCL |
Yes |
No |
.083 MG/L |
0.080 mg/L |
.08 |
Archived |
Dec 31, 2011 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Combined Uranium |
MR |
No |
Yes |
— |
30 ug/L |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Combined Uranium |
MR |
No |
Yes |
— |
30 ug/L |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Combined Uranium |
MR |
No |
Yes |
— |
30 ug/L |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
TTHM |
MCL |
Yes |
No |
.083 MG/L |
0.080 mg/L |
.08 |
Archived |
Dec 31, 2011 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-228 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Radium-226 |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |
| Oct 1, 2011 |
Dec 31, 2011 |
Combined Uranium |
MR |
No |
Yes |
— |
30 ug/L |
— |
Resolved |
Dec 31, 2011 |
Radionuclides and Revised Rad Rule |