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California · California (CIWQS)

Santa Ana City

C
Often reaches water
Reported events
85
Total volume
40K gal
Reached waterways
15 (18%)
Reporting since
2007

What caused the overflows

Grease / FOG
42
Root Intrusion
17
Other / Unknown
15
Equipment Failure
11

Reported overflow events (showing 85 of 85)

DateVolumeCauseReached waterReceiving water
Jul 2, 2025250 galGrease / FOG——
Jun 18, 2024480 galGrease / FOG——
May 20, 202468 galEquipment Failure——
Apr 1, 2024120 galGrease / FOG——
Jan 15, 2023504 galEquipment Failure—Paved Surface
Dec 15, 20223K galEquipment FailureYesDrainage Channel
Dec 12, 2022760 galGrease / FOGYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 23, 2022320 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Nov 20, 20224K galGrease / FOGYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 14, 202215 galGrease / FOG—Paved Surface
Sep 21, 2022100 galGrease / FOG—Paved Surface;Street/Curb and Gutter
May 16, 20225 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Jan 18, 202240 galGrease / FOG—Paved Surface
Nov 30, 202120 galGrease / FOG—Street/Curb and Gutter
Jul 29, 202117 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Feb 11, 2021485 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Dec 17, 202015 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Feb 5, 202075 galEquipment Failure—Street/Curb and Gutter
Sep 7, 201987 galRoot Intrusion—Street/Curb and Gutter
Jul 20, 201960 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Feb 24, 2019168 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Aug 7, 201875 galRoot Intrusion—Street/Curb and Gutter
Feb 7, 2018189 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Feb 5, 2018450 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Dec 26, 201715 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Jun 22, 201790 galRoot Intrusion—Street/Curb and Gutter
Mar 10, 201715 galGrease / FOG—Street/Curb and Gutter
Jan 5, 2017262 galEquipment Failure—Street/Curb and Gutter
Dec 1, 2016298 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter
Oct 29, 201690 galRoot Intrusion—Street/Curb and Gutter
Nov 25, 2015110 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Oct 12, 2015306 galGrease / FOGYesDrainage Channel;Street/Curb and Gutter
Sep 24, 201520 galGrease / FOG—Street/Curb and Gutter
Aug 25, 2015800 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Jun 26, 2015120 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Jan 27, 2015618 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Nov 17, 2014156 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Apr 21, 201450 galGrease / FOG—Street/Curb and Gutter
Mar 3, 201450 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Jan 10, 2014560 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Oct 5, 2013470 galGrease / FOG—Other (specify below);Paved Surface;Street/Curb and Gutter
Sep 3, 2013135 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Jul 5, 20132K galOther / Unknown—Separate storm drain;Other (specify below)
Feb 15, 201315 galEquipment Failure—Street/curb and gutter
Dec 21, 2012155 galEquipment Failure—Separate storm drain
Nov 19, 201225 galOther / Unknown—Street/curb and gutter
Oct 21, 20122K galOther / Unknown—Separate storm drain;Street/curb and gutter
Jul 26, 201250 galRoot Intrusion—Street/curb and gutter
Jul 22, 2012420 galRoot Intrusion—Separate storm drain;Street/curb and gutter
Jun 30, 20123K galGrease / FOG—Separate storm drain
Apr 21, 201270 galGrease / FOG—Street/curb and gutter
Jan 14, 20122K galGrease / FOG—Separate storm drain;Street/curb and gutter
Jan 3, 2012150 galGrease / FOG—Street/curb and gutter
Dec 26, 2011600 galGrease / FOG—Separate storm drain
Dec 19, 2011125 galGrease / FOG—Street/curb and gutter
Nov 6, 20111K galGrease / FOGYesSurface water
Jun 1, 20112K galGrease / FOG—Separate storm drain
May 28, 20111K galOther / Unknown—Separate storm drain
May 13, 2011225 galOther / Unknown—Street/curb and gutter
Apr 10, 2011225 galGrease / FOG—Street/curb and gutter
Apr 4, 2011100 galGrease / FOG—Street/curb and gutter
Mar 22, 2011700 galOther / UnknownYesSeparate storm drain;Street/curb and gutter
Feb 25, 2011300 galGrease / FOG—Street/curb and gutter
Jan 22, 2011150 galGrease / FOG—Street/curb and gutter
Dec 30, 201025 galRoot Intrusion—Street/curb and gutter
Nov 4, 2010900 galOther / UnknownYesSeparate storm drain
Oct 6, 2010225 galGrease / FOGYesStorm drain
Aug 19, 2010455 galGrease / FOGYesStreet/curb and gutter;Other (specify below)
Aug 15, 201045 galRoot Intrusion—Other paved surface
Jul 18, 2010325 galGrease / FOGYesSeparate storm drain;Street/curb and gutter
Mar 25, 201030 galOther / Unknown—Street/curb and gutter
Nov 22, 200945 galRoot Intrusion—Street/curb and gutter
Sep 21, 2009675 galGrease / FOG—Street/curb and gutter
Sep 8, 2009450 galGrease / FOG—Street/curb and gutter
Sep 6, 20091K galGrease / FOGYesSeparate storm drain
Sep 2, 2009300 galOther / Unknown—Street/curb and gutter
Jun 10, 20092K galGrease / FOG—Unpaved surface
Feb 16, 2009100 galRoot Intrusion—Street/curb and gutter
Nov 1, 2007100 galOther / Unknown—Street/curb and gutter
Jul 18, 2007350 galOther / UnknownYesSurface water
Jul 9, 2007130 galOther / UnknownYesStorm drain
Apr 21, 2007300 galOther / UnknownYesSeparate storm drain;Surface water
Mar 12, 2007300 galGrease / FOGYesSeparate storm drain
Jan 27, 2007100 galOther / Unknown—Other paved surface;Street/curb and gutter
Jan 23, 2007100 galOther / Unknown—Other paved surface

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