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California · California (CIWQS)

San Leandro City

B
Seldom reaches water
Reported events
40
Total volume
100K gal
Reached waterways
5 (13%)
Reporting since
2007

What caused the overflows

Grease / FOG
14
Equipment Failure
12
Root Intrusion
8
Other / Unknown
4
Rainfall / Flooding
2

Reported overflow events (showing 40 of 40)

DateVolumeCauseReached waterReceiving water
Mar 27, 2026163 galEquipment Failure——
Feb 11, 2026114 galGrease / FOG——
Jun 4, 2025325 galEquipment Failure——
Oct 26, 2024210 galGrease / FOG——
Apr 11, 202499 galEquipment Failure——
Jan 10, 202456 galEquipment FailureYesSan Francisco Bay
Jan 3, 202350 galEquipment Failure—Unpaved surface
Dec 31, 202277K galRainfall / FloodingYesSeparate Storm Drain;Street/Curb and Gutter
Mar 21, 2022900 galRoot Intrusion—Separate Storm Drain
Jan 4, 20225 galGrease / FOG—Unpaved surface
Dec 23, 2021150 galRainfall / Flooding—Building or Structure
Jan 17, 202150 galEquipment Failure—Separate Storm Drain
Jan 13, 2021200 galEquipment Failure—Paved Surface
Dec 26, 2020900 galEquipment Failure—Separate Storm Drain
Sep 21, 2020100 galGrease / FOG—Street/Curb and Gutter
Jan 3, 201940 galRoot Intrusion—Separate Storm Drain
Jan 3, 201720 galRoot Intrusion—Street/Curb and Gutter
Sep 17, 201675 galRoot Intrusion—Unpaved surface
Jan 25, 2016594 galEquipment Failure—Separate Storm Drain
Oct 3, 2014150 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Aug 21, 2014500 galGrease / FOG—Separate Storm Drain
Jun 23, 2014150 galGrease / FOG—Separate Storm Drain
Apr 21, 2014300 galEquipment Failure—Separate Storm Drain
Aug 23, 2013840 galEquipment Failure—Other (specify below)
Apr 3, 2013100 galRoot Intrusion—Unpaved surface
Jan 12, 2013822 galRoot Intrusion—Other (specify below)
Sep 19, 20122K galGrease / FOG—Unpaved surface
Jun 7, 20122K galGrease / FOG—Separate storm drain
Feb 3, 201220 galRoot Intrusion—Street/curb and gutter
Aug 20, 20112K galOther / UnknownYesSurface water
Mar 8, 2011864 galOther / Unknown—Building or structure
Jan 12, 201115 galGrease / FOG—Other paved surface
Aug 22, 200950 galGrease / FOG—Street/curb and gutter
Aug 18, 200950 galGrease / FOG—Storm drain
May 11, 2009100 galRoot Intrusion—Other (specify below)
Apr 17, 2009200 galOther / Unknown—Storm drain
Dec 12, 2008600 galGrease / FOG—Storm drain
Apr 29, 2008100 galGrease / FOG—Street/curb and gutter
Nov 15, 20079K galEquipment FailureYesSurface water
Oct 17, 2007100 galOther / UnknownYesUnpaved surface

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