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Arizona · EPA ECHO (national)

CITY OF PHOENIX - 91ST AVENUE Collection System

Permit AZ0020524

—
No waterway impact reported
Reported events
40
Total volume
432K gal
Reached waterways
0 (0%)
Reporting since
2023

What caused the overflows

Grease / FOG
24
Equipment Failure
7
Other / Unknown
7
Root Intrusion
1
Rainfall / Flooding
1

Reported overflow events (showing 40 of 40)

DateVolumeCauseReached waterReceiving water
Jun 12, 2026300K galEquipment Failure——
Jun 11, 202650K galOther / Unknown——
Jun 2, 202619K galGrease / FOG——
May 16, 20263K galGrease / FOG——
May 15, 2026168 galOther / Unknown——
May 8, 20269K galOther / Unknown——
Apr 25, 20268K galOther / Unknown——
Apr 11, 2026720 galGrease / FOG——
Mar 11, 2026141 galGrease / FOG—Az Canal Diversion Channel
Jan 13, 2026470 galGrease / FOG——
Dec 9, 2025441 galEquipment Failure——
Sep 26, 2025—Rainfall / Flooding—Salt River
Jun 24, 2025200 galGrease / FOG——
May 22, 20251K galGrease / FOG——
Feb 3, 2025600 galEquipment Failure——
Dec 22, 20242K galRoot Intrusion——
Dec 8, 20241K galGrease / FOG——
Dec 5, 20243K galGrease / FOG——
Dec 3, 2024300 galGrease / FOG——
Dec 1, 2024200 galEquipment Failure——
Nov 4, 2024126 galGrease / FOG——
Nov 2, 20241K galGrease / FOG——
Oct 14, 202414K galOther / Unknown——
Aug 15, 20241K galGrease / FOG——
Aug 10, 2024150 galGrease / FOG——
Jul 14, 2024750 galGrease / FOG——
May 16, 2024100 galGrease / FOG——
Apr 14, 2024400 galGrease / FOG——
Apr 11, 20245K galOther / Unknown——
Apr 3, 20241K galGrease / FOG——
Mar 31, 20242K galGrease / FOG——
Mar 13, 202464 galOther / Unknown——
Jan 14, 2024404 galGrease / FOG——
Dec 31, 2023500 galGrease / FOG——
Dec 28, 2023875 galGrease / FOG——
Oct 5, 2023300 galGrease / FOG——
Sep 20, 2023800 galEquipment Failure——
Sep 17, 20235K galGrease / FOG——
Sep 8, 2023200 galEquipment Failure——
Sep 5, 20231K galEquipment Failure——

Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.