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Alaska · EPA ECHO (national)

Anchorage Sanitary Sewer System

Permit AK0022551

—
No waterway impact reported
Reported events
41
Total volume
43K gal
Reached waterways
0 (0%)
Reporting since
2023

What caused the overflows

Grease / FOG
24
Equipment Failure
14
Other / Unknown
2
Root Intrusion
1

Reported overflow events (showing 41 of 41)

DateVolumeCauseReached waterReceiving water
Jun 4, 2026334 galEquipment Failure——
May 16, 20261 galGrease / FOG——
May 2, 202615 galEquipment Failure——
Apr 19, 202650 galGrease / FOG——
Mar 31, 202610K galOther / Unknown—Fish Creek which flowed to Travels to Cook Inlet
Mar 20, 202610K galEquipment Failure——
Mar 16, 2026100 galGrease / FOG——
Feb 17, 2026100 galRoot Intrusion——
Feb 4, 2026490 galGrease / FOG——
Jan 30, 20266K galGrease / FOG—Fish Creek
Dec 18, 202550 galGrease / FOG——
Jul 30, 202510 galOther / Unknown——
May 11, 20251K galGrease / FOG——
Dec 19, 20243K galEquipment Failure——
Oct 31, 2024100 galGrease / FOG——
Oct 24, 202410 galGrease / FOG——
Sep 29, 202450 galGrease / FOG——
Jul 5, 20243K galGrease / FOG——
Jul 1, 20245 galEquipment Failure——
Jun 4, 2024600 galEquipment Failure——
May 21, 202440 galEquipment Failure——
May 18, 2024600 galGrease / FOG——
May 2, 2024100 galGrease / FOG——
Apr 26, 202430 galGrease / FOG——
Apr 15, 202490 galEquipment Failure——
Apr 15, 2024100 galGrease / FOG——
Feb 9, 20243 galGrease / FOG——
Jan 18, 202459 galGrease / FOG——
Dec 29, 202320 galEquipment Failure——
Dec 10, 2023112 galEquipment Failure——
Dec 2, 20233K galGrease / FOG——
Nov 17, 2023100 galGrease / FOG——
Oct 27, 20232K galGrease / FOG——
Sep 22, 2023250 galGrease / FOG——
Sep 21, 20237 galEquipment Failure——
Sep 14, 202310 galEquipment Failure——
Sep 9, 20231K galEquipment Failure——
Aug 4, 202340 galGrease / FOG——
Jul 26, 202325 galGrease / FOG——
Jun 6, 2023100 galGrease / FOG——
Jun 5, 2023210 galEquipment Failure——

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