| Public Notice | Monitoring | N/A | N/A | Jul 29, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Apr 30, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Feb 11, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 11, 2025 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Nov 18, 2024 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 18, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.017 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Aug 5, 2024 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 5, 2024 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.017 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Feb 1, 2024 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 1, 2024 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Aug 10, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 10, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 27, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 27, 2023 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.018 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.4 | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.4 | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.4 | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.4 | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.4 | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.5 | Dec 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.018 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.5 | Dec 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Dec 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Dec 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Dec 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Public Notice | Monitoring | N/A | N/A | Dec 21, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Dec 21, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Dec 7, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Dec 7, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Dec 7, 2022 | Resolved | N/A |
| Fluoride | Health-Based | N/A | 4.4 | Sep 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.4 | Sep 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.4 | Sep 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Arsenic | Health-Based | N/A | 0.019 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.4 | Sep 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.4 | Sep 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Jun 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.019 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.5 | Jun 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Jun 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Jun 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.5 | Jun 30, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.1 | Mar 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Health-Based | N/A | 4.1 | Mar 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.1 | Mar 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.1 | Mar 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Health-Based | N/A | 4.1 | Mar 31, 2022 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Public Notice | Monitoring | N/A | N/A | Feb 8, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 8, 2022 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.02 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Oct 27, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 27, 2021 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.021 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.021 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.02 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Feb 17, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 17, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 17, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 17, 2021 | Resolved | N/A |