All rankings
Arizona · EPA ECHO (national)
USDOI NPS - GRAND CANYON NP
Permit AZ0022152
—
No waterway impact reported
Reported events
31
Total volume
—
Reached waterways
0 (0%)
Reporting since
2019
What caused the overflows
Equipment Failure
21
Root Intrusion
5
Other / Unknown
4
Grease / FOG
1
Reported overflow events (showing 31 of 31)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Jun 10, 2026 | — | Equipment Failure | — | — |
| Jun 2, 2026 | — | Equipment Failure | — | — |
| May 26, 2026 | — | Equipment Failure | — | — |
| May 26, 2026 | — | Equipment Failure | — | — |
| May 11, 2026 | — | Equipment Failure | — | — |
| Sep 19, 2025 | — | Root Intrusion | — | — |
| May 31, 2025 | — | Equipment Failure | — | — |
| May 17, 2025 | — | Equipment Failure | — | — |
| Dec 17, 2024 | — | Equipment Failure | — | — |
| Nov 14, 2024 | — | Equipment Failure | — | — |
| Oct 6, 2024 | — | Equipment Failure | — | — |
| Jun 16, 2024 | — | Equipment Failure | — | — |
| Mar 12, 2024 | — | Root Intrusion | — | — |
| Jul 23, 2023 | — | Equipment Failure | — | — |
| Jul 12, 2023 | — | Equipment Failure | — | — |
| Feb 19, 2023 | — | Equipment Failure | — | — |
| Feb 11, 2023 | — | Root Intrusion | — | — |
| Feb 9, 2023 | — | Equipment Failure | — | — |
| Dec 10, 2022 | — | Equipment Failure | — | — |
| Nov 26, 2022 | — | Grease / FOG | — | — |
| Nov 18, 2022 | — | Equipment Failure | — | — |
| Nov 10, 2022 | — | Other / Unknown | — | — |
| Oct 17, 2022 | — | Equipment Failure | — | — |
| Sep 28, 2022 | — | Equipment Failure | — | — |
| Apr 19, 2022 | — | Equipment Failure | — | — |
| Oct 6, 2021 | — | Other / Unknown | — | — |
| Sep 23, 2021 | — | Root Intrusion | — | — |
| Jun 30, 2021 | — | Root Intrusion | — | — |
| Mar 30, 2021 | — | Other / Unknown | — | — |
| Nov 21, 2020 | — | Equipment Failure | — | — |
| Nov 29, 2019 | — | Other / Unknown | — | — |
Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.