| Public Notice | Monitoring | N/A | N/A | Sep 10, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 10, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.056 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.056 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.056 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Groundwater Rule | Health-Based | N/A | N/A | May 28, 2025 | Active | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | May 28, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.05 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.05 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.05 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| LEAD AND COPPER RULE REVISIONS | Health-Based | 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 | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.044 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.044 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.045 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Jun 29, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 26, 2023 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Dec 7, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 2, 2022 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Aug 6, 2022 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Apr 29, 2022 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Dec 10, 2021 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.046 | Jun 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.047 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.047 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.047 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.047 | Mar 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |