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California · California (CIWQS)

Treasure Island Development Authority

C
Often reaches water
Reported events
53
Total volume
154K gal
Reached waterways
8 (15%)
Reporting since
2015

What caused the overflows

Equipment Failure
28
Other / Unknown
11
Grease / FOG
9
Root Intrusion
5

Reported overflow events (showing 53 of 53)

DateVolumeCauseReached waterReceiving water
Sep 2, 2025165 galGrease / FOG——
Aug 30, 202524K galEquipment FailureYesSan Francisco Bay
Sep 19, 2024270 galRoot Intrusion——
Aug 26, 202450 galEquipment Failure——
Aug 1, 20242K galEquipment Failure——
Jul 16, 20241K galOther / Unknown——
Mar 7, 20242K galEquipment Failure—SF Bay
Mar 4, 2024300 galGrease / FOG——
Mar 3, 2024800 galGrease / FOG——
Jul 29, 20231K galGrease / FOG——
Mar 10, 202364 galRoot Intrusion—Paved Surface;Separate Storm Drain
Jan 21, 20232K galOther / UnknownYesPaved Surface;Separate Storm Drain;Surface Water
Nov 11, 2022137 galEquipment Failure—Paved Surface
Oct 13, 2022443 galRoot Intrusion—Unpaved surface
Oct 9, 2022219 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Jul 16, 2022165 galEquipment Failure—Unpaved surface
May 4, 20229 galEquipment Failure—Paved Surface
May 3, 202257 galEquipment Failure—Separate Storm Drain;Unpaved surface
Mar 10, 202227 galRoot Intrusion—Paved Surface
Feb 25, 2022215 galGrease / FOG—Unpaved surface
Jan 9, 2022110 galEquipment Failure—Unpaved surface
Dec 6, 20211K galEquipment Failure—Paved Surface;Unpaved surface
Dec 5, 20213K galEquipment Failure—Paved Surface;Unpaved surface
Dec 4, 20214K galEquipment Failure—Paved Surface;Surface Water;Unpaved surface
Dec 3, 20214K galEquipment Failure—Paved Surface;Unpaved surface
Oct 29, 20214K galEquipment Failure—Separate Storm Drain
Oct 7, 20216K galOther / UnknownYesSurface Water
Aug 29, 20213K galEquipment Failure—Other (specify below)
Aug 5, 2021150 galEquipment Failure—Other (specify below);Paved Surface;Separate Storm Drain;Street/Curb and Gutter
May 23, 2021375 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
May 7, 202115 galEquipment Failure—Street/Curb and Gutter
May 6, 2021120 galEquipment Failure—Other (specify below)
Mar 24, 2021970 galEquipment FailureYesSeparate Storm Drain
Jan 13, 2021609 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 12, 202131K galEquipment FailureYesSurface Water
Jun 16, 2020139 galEquipment FailureYesPaved Surface;Separate Storm Drain
Nov 12, 2019450 galGrease / FOG—Other (specify below);Separate Storm Drain
Nov 11, 2019450 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 29, 201955 galOther / Unknown—Paved Surface;Unpaved surface
May 22, 201923 galOther / Unknown—Paved Surface;Unpaved surface
Feb 17, 2019809 galEquipment Failure—Street/Curb and Gutter
Aug 10, 2018217 galOther / Unknown—Street/Curb and Gutter
Jul 25, 20182K galOther / Unknown—Other (specify below)
Apr 16, 201819K galEquipment FailureYesOther (specify below);Surface Water
Apr 4, 2018230 galOther / Unknown—Other (specify below)
Feb 21, 201834K galOther / Unknown—Other (specify below)
Nov 6, 2017300 galRoot Intrusion—Paved Surface;Unpaved surface
Sep 2, 20171K galGrease / FOGYesSeparate Storm Drain;Surface Water;Unpaved surface
Nov 14, 2016500 galEquipment Failure—Paved Surface
Jul 15, 20167 galEquipment Failure—Other (specify below)
Apr 18, 2016150 galEquipment Failure—Other (specify below)
Feb 18, 2016100 galOther / Unknown—Unpaved surface
Aug 1, 2015394 galGrease / FOG—Other (specify below)

Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.