| Apr 1, 2025 |
Jun 30, 2025 |
TTHM |
MCL |
Yes |
No |
.119 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2025 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 |
Jun 30, 2025 |
TTHM |
MCL |
Yes |
No |
.119 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2025 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 |
Jun 30, 2025 |
TTHM |
MCL |
Yes |
No |
.119 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2025 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2024 |
Dec 31, 2024 |
TTHM |
MCL |
Yes |
No |
.17 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2024 |
Dec 31, 2024 |
TTHM |
MCL |
Yes |
No |
.17 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2024 |
Dec 31, 2024 |
TTHM |
MCL |
Yes |
No |
.17 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2024 |
Sep 30, 2024 |
TTHM |
MCL |
Yes |
No |
.227 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2024 |
Sep 30, 2024 |
TTHM |
MCL |
Yes |
No |
.227 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Jun 30, 2024 |
TTHM |
MCL |
Yes |
No |
.205 MG/L |
0.080 mg/L |
.08 |
Resolved |
Jun 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Jun 30, 2024 |
TTHM |
MCL |
Yes |
No |
.205 MG/L |
0.080 mg/L |
.08 |
Resolved |
Jun 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Jun 30, 2024 |
TTHM |
MCL |
Yes |
No |
.176 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Jun 30, 2024 |
TTHM |
MCL |
Yes |
No |
.176 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Jun 30, 2024 |
TTHM |
MCL |
Yes |
No |
.176 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 |
Mar 31, 2024 |
TTHM |
MCL |
Yes |
No |
.186 MG/L |
0.080 mg/L |
.08 |
Archived |
Mar 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 |
Mar 31, 2024 |
TTHM |
MCL |
Yes |
No |
.186 MG/L |
0.080 mg/L |
.08 |
Archived |
Mar 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 |
Mar 31, 2024 |
TTHM |
MCL |
Yes |
No |
.186 MG/L |
0.080 mg/L |
.08 |
Archived |
Mar 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 |
Mar 31, 2024 |
TTHM |
MCL |
Yes |
No |
.186 MG/L |
0.080 mg/L |
.08 |
Archived |
Mar 31, 2024 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 |
Dec 31, 2023 |
TTHM |
MCL |
Yes |
No |
.169 MG/L |
0.080 mg/L |
.08 |
Archived |
Dec 31, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 |
Dec 31, 2023 |
TTHM |
MCL |
Yes |
No |
.169 MG/L |
0.080 mg/L |
.08 |
Archived |
Dec 31, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Sep 30, 2023 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Archived |
Sep 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Sep 30, 2023 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Archived |
Sep 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Sep 30, 2023 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Archived |
Sep 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Sep 30, 2023 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Archived |
Sep 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Sep 30, 2023 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Archived |
Sep 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
TTHM |
MCL |
Yes |
No |
.12 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
TTHM |
MCL |
Yes |
No |
.12 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
TTHM |
MCL |
Yes |
No |
.12 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
TTHM |
MCL |
Yes |
No |
.12 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
TTHM |
MCL |
Yes |
No |
.12 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2023 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 19, 2021 |
— |
Public Notice |
Other |
No |
No |
— |
— |
— |
Resolved |
Dec 6, 2021 |
Public Notice Rule and Revised PN Rule |
| Nov 19, 2021 |
— |
Public Notice |
Other |
No |
No |
— |
— |
— |
Resolved |
Dec 6, 2021 |
Public Notice Rule and Revised PN Rule |
| Oct 1, 2021 |
Dec 31, 2021 |
TTHM |
MCL |
Yes |
No |
.114 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2021 |
Dec 31, 2021 |
TTHM |
MCL |
Yes |
No |
.114 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2021 |
Sep 30, 2021 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2021 |
Sep 30, 2021 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2021 |
Sep 30, 2021 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2021 |
Sep 30, 2021 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2021 |
Sep 30, 2021 |
TTHM |
MCL |
Yes |
No |
.16 MG/L |
0.080 mg/L |
.08 |
Resolved |
Sep 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2021 |
Jun 30, 2021 |
TTHM |
MCL |
Yes |
No |
.199 MG/L |
0.080 mg/L |
.08 |
Resolved |
Jun 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2021 |
Jun 30, 2021 |
TTHM |
MCL |
Yes |
No |
.199 MG/L |
0.080 mg/L |
.08 |
Resolved |
Jun 30, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Mar 23, 2021 |
— |
Public Notice |
Other |
No |
No |
— |
— |
— |
Resolved |
May 17, 2021 |
Public Notice Rule and Revised PN Rule |
| Mar 23, 2021 |
— |
Public Notice |
Other |
No |
No |
— |
— |
— |
Resolved |
May 17, 2021 |
Public Notice Rule and Revised PN Rule |
| Jan 1, 2021 |
Mar 31, 2021 |
TTHM |
MCL |
Yes |
No |
.143 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 |
.143 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 |
.143 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 |
.143 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 |
.143 MG/L |
0.080 mg/L |
.08 |
Resolved |
Mar 31, 2021 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2020 |
Dec 31, 2020 |
TTHM |
MCL |
Yes |
No |
.116 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2020 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2020 |
Dec 31, 2020 |
TTHM |
MCL |
Yes |
No |
.116 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2020 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2020 |
Dec 31, 2020 |
TTHM |
MCL |
Yes |
No |
.116 MG/L |
0.080 mg/L |
.08 |
Resolved |
Dec 31, 2020 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |