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California · California (CIWQS)

UC Berkeley

C
Often reaches water
Reported events
45
Total volume
18K gal
Reached waterways
13 (29%)
Reporting since
2008

What caused the overflows

Root Intrusion
15
Equipment Failure
15
Other / Unknown
10
Grease / FOG
5

Reported overflow events (showing 45 of 45)

DateVolumeCauseReached waterReceiving water
Sep 2, 202510 galRoot IntrusionYesStrawberry Creek
Dec 16, 2024215 galRoot IntrusionYesStrawberry Creek, North Fork
Mar 22, 202345 galRoot IntrusionYesStreet/Curb and Gutter
Jan 22, 2023100 galEquipment Failure—Other (specify below);Street/Curb and Gutter;Unpaved surface
Jan 31, 202220 galEquipment Failure—Building or Structure
Sep 10, 2021750 galEquipment FailureYesSeparate Storm Drain;Street/Curb and Gutter;Surface Water
Apr 13, 2021320 galEquipment FailureYesBuilding or Structure;Separate Storm Drain;Surface Water
Nov 24, 202030 galRoot Intrusion—Paved Surface;Unpaved surface
Sep 17, 202032 galRoot Intrusion—Building or Structure;Paved Surface
Sep 16, 20201 galOther / Unknown—Paved Surface
Feb 11, 202020 galGrease / FOG—Building or Structure
Aug 22, 201955 galEquipment Failure—Building or Structure
Aug 19, 20192K galRoot IntrusionYesBuilding or Structure;Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
May 31, 20191K galEquipment FailureYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Feb 15, 20192K galOther / UnknownYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Oct 15, 2018100 galRoot IntrusionYesPaved Surface;Separate Storm Drain
Apr 13, 201830 galGrease / FOG—Building or Structure
Sep 28, 2017500 galOther / UnknownYesSeparate Storm Drain;Street/Curb and Gutter
Feb 28, 2017110 galOther / Unknown—Unpaved surface
Nov 6, 20163K galRoot IntrusionYesBeach;Surface Water
Aug 29, 2016350 galOther / Unknown—Building or Structure
Aug 4, 2016250 galEquipment Failure—Building or Structure
Jul 14, 2016300 galEquipment FailureYesDrainage Channel;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Jul 13, 20162 galRoot Intrusion—Unpaved surface
Apr 12, 201620 galEquipment Failure—Unpaved surface
Jun 1, 2015220 galEquipment Failure—Paved Surface
Jan 20, 201510 galEquipment Failure—Paved Surface
Nov 6, 201450 galEquipment Failure—Paved Surface;Unpaved surface
Oct 21, 2014550 galOther / Unknown—Building or Structure
Aug 1, 201454 galEquipment Failure—Paved Surface;Unpaved surface
Jul 25, 201450 galOther / Unknown—Paved Surface
Mar 14, 201492 galGrease / FOG—Building or Structure
Jan 27, 20145 galEquipment Failure—Unpaved surface
Dec 2, 2013328 galEquipment Failure—Paved Surface;Unpaved surface
Dec 1, 20133K galOther / Unknown—Paved Surface;Unpaved surface
Sep 17, 20134 galGrease / FOG—Building or Structure
Sep 9, 20135 galRoot Intrusion—Building or Structure;Unpaved surface
Jan 24, 201320 galRoot Intrusion—Building or structure;Other paved surface;Unpaved surface
Jul 12, 201115 galRoot Intrusion—Unpaved surface
Mar 10, 201115 galRoot Intrusion—Unpaved surface
Jun 16, 201060 galOther / Unknown—Unpaved surface
Apr 7, 201049 galRoot Intrusion—Other (specify below)
May 20, 200940 galOther / Unknown—Street/curb and gutter
Jan 18, 20092K galGrease / FOGYesSeparate storm drain;Surface water
Feb 6, 2008100 galRoot Intrusion—Other (specify below)

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