| Sep 1, 2025 |
Sep 30, 2025 |
Chlorite |
MR |
No |
Yes |
— |
1.0 mg/L |
— |
Archived |
Sep 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2025 |
Sep 30, 2025 |
Chlorite |
MR |
No |
Yes |
— |
1.0 mg/L |
— |
Archived |
Sep 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2025 |
Jul 31, 2025 |
Chlorite |
MR |
No |
Yes |
— |
1.0 mg/L |
— |
Archived |
Jul 31, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2025 |
Jun 30, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
Jun 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2025 |
Jun 30, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
Jun 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2025 |
Jun 30, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
Jun 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2025 |
Jun 30, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
Jun 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| May 1, 2025 |
May 31, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
May 31, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| May 1, 2025 |
May 31, 2025 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
May 31, 2025 |
Surface Water Treatment Rule |
| May 1, 2025 |
May 31, 2025 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Archived |
May 31, 2025 |
Surface Water Treatment Rule |
| May 1, 2025 |
May 31, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
May 31, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 |
Jun 30, 2025 |
TTHM |
MCL |
Yes |
No |
.081 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2025 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 |
Apr 30, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
Apr 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 |
Jun 30, 2025 |
TTHM |
MCL |
Yes |
No |
.081 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 |
.081 MG/L |
0.080 mg/L |
.08 |
Archived |
Jun 30, 2025 |
Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 |
Apr 30, 2025 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Archived |
Apr 30, 2025 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
RPT |
No |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
TT |
Yes |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
RPT |
No |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
TT |
Yes |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
RPT |
No |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
TT |
Yes |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
TT |
Yes |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Oct 17, 2024 |
— |
LEAD AND COPPER RULE REVISIONS |
RPT |
No |
No |
— |
— |
— |
Resolved |
Feb 28, 2025 |
Lead and Copper Rule Revisions |
| Sep 1, 2024 |
Sep 30, 2024 |
Chlorite |
MR |
No |
Yes |
— |
1.0 mg/L |
— |
Resolved |
Sep 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2024 |
Sep 30, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Sep 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2024 |
Sep 30, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Sep 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2024 |
Sep 30, 2024 |
Chlorite |
MR |
No |
Yes |
— |
1.0 mg/L |
— |
Resolved |
Sep 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2024 |
Jun 30, 2024 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Resolved |
Jun 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2024 |
Jun 30, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Jun 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2024 |
Jun 30, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Jun 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2024 |
Jun 30, 2024 |
Chlorine dioxide |
MR |
No |
Yes |
— |
0.8 mg/L |
— |
Resolved |
Jun 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| May 1, 2024 |
May 31, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
May 31, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| May 1, 2024 |
May 31, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
May 31, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Apr 30, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Apr 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 |
Apr 30, 2024 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Apr 30, 2024 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Dec 1, 2023 |
Dec 31, 2023 |
Interim Enhanced Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2023 |
Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Dec 1, 2023 |
Dec 31, 2023 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2023 |
Surface Water Treatment Rule |
| Dec 1, 2023 |
Dec 31, 2023 |
Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2023 |
Surface Water Treatment Rule |
| Dec 1, 2023 |
Dec 31, 2023 |
Interim Enhanced Surface Water Treatment Rule |
MR |
No |
Yes |
— |
— |
— |
Resolved |
Dec 31, 2023 |
Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Oct 1, 2023 |
Dec 31, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Dec 31, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 |
Dec 31, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Dec 31, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2023 |
Sep 30, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Sep 30, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2023 |
Sep 30, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Sep 30, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2023 |
Aug 31, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Aug 31, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2023 |
Aug 31, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Aug 31, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Jul 31, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Jul 31, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 |
Jul 31, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Jul 31, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Jun 30, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 |
Jun 30, 2023 |
CARBON, TOTAL |
MR |
No |
Yes |
— |
TT |
— |
Resolved |
Jun 30, 2023 |
Stage 1 Disinfectants and Disinfection Byproducts Rule |