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California · California (CIWQS)

Single Family Residence

B
Seldom reaches water
Reported events
340
Total volume
4.0M gal
Reached waterways
42 (12%)
Reporting since
2007

What caused the overflows

Root Intrusion
103
Equipment Failure
95
Other / Unknown
77
Grease / FOG
61
Capacity Issue
3
Rainfall / Flooding
1

Reported overflow events (showing 200 of 340)

DateVolumeCauseReached waterReceiving water
May 30, 2026228 galRoot Intrusion——
May 17, 2026161 galRoot Intrusion——
Apr 22, 2026555 galRoot IntrusionYesWillow Woodland Riparian Habitat Preserve
Apr 3, 20263K galGrease / FOGYesSanta Ana River
Jan 30, 20261K galEquipment FailureYesLake Evans
Jan 2, 20263K galRoot IntrusionYesSanta Ana River
Jul 3, 20259K galEquipment FailureYesSanta Ana River
Jun 16, 2025195 galEquipment Failure——
May 22, 20251K galEquipment FailureYesStorm drain
Mar 16, 2025155K galEquipment Failure——
Mar 12, 2025700 galEquipment FailureYesSpringbrook Wash
Mar 5, 202540K galEquipment FailureYesArlington Valley Channel
Dec 21, 2024492 galOther / Unknown——
Nov 18, 202430K galEquipment FailureYesSanta Ana River
Nov 18, 202430K galEquipment FailureYesSanta Ana River
Sep 26, 202421K galOther / UnknownYesSanta Ana River
Aug 14, 202490 galRoot Intrusion—Unnamed wash
Jul 13, 2024985 galEquipment Failure——
Apr 10, 2024540 galEquipment Failure——
Dec 24, 2023982 galEquipment Failure——
Dec 17, 202340K galEquipment Failure——
Jun 29, 20237K galEquipment FailureYesSanta Ana River
Jun 29, 20237K galEquipment FailureYesSanta Ana River
Apr 24, 2023290 galEquipment Failure—Building or Structure;Unpaved surface
Apr 8, 2023505 galEquipment Failure—Street/Curb and Gutter
Mar 15, 2023244 galOther / Unknown—Unpaved surface
Feb 7, 20235 galOther / Unknown—Street/Curb and Gutter
Feb 6, 2023735 galOther / Unknown—Street/Curb and Gutter
Feb 3, 20232K galEquipment Failure—Unpaved surface
Jan 22, 20238K galEquipment Failure—Paved Surface;Street/Curb and Gutter
Dec 21, 202280K galOther / UnknownYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Dec 4, 2022720 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 3, 2022682 galEquipment Failure—Street/Curb and Gutter
Nov 14, 20221K galEquipment Failure—Paved Surface;Separate Storm Drain;Unpaved surface
Oct 7, 2022100 galEquipment Failure—Paved Surface
Sep 14, 20223 galRoot Intrusion—Paved Surface
Aug 12, 202230 galOther / Unknown—Street/Curb and Gutter
Jun 28, 2022775 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved surface
Jun 22, 202231 galGrease / FOG—Street/Curb and Gutter
May 14, 202210 galEquipment Failure—Paved Surface
Mar 19, 2022581 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter
Jan 31, 202220 galGrease / FOG—Unpaved surface
Jan 14, 202290 galOther / Unknown—Other (specify below)
Dec 4, 202116 galRoot Intrusion—Unpaved surface
Oct 12, 20215 galRoot Intrusion—Unpaved surface
Oct 11, 2021445 galRoot Intrusion—Street/Curb and Gutter
Oct 6, 2021350 galOther / UnknownYesOther (specify below)
Jul 24, 202113K galGrease / FOGYesDrainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jul 17, 2021960 galEquipment FailureYesDrainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 24, 202137 galEquipment Failure—Paved Surface
May 12, 2021240 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 12, 20211 galRoot Intrusion—Street/Curb and Gutter
Mar 24, 20211K galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jan 15, 20212K galEquipment Failure—Unpaved surface
Jan 14, 202133 galRoot Intrusion—Paved Surface;Street/Curb and Gutter;Unpaved surface
Nov 13, 2020331K galEquipment FailureYesDrainage Channel
Jul 10, 2020162 galEquipment Failure—Paved Surface;Separate Storm Drain
Jul 9, 2020175 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Jun 9, 202016K galOther / Unknown—Unpaved surface
Jan 3, 2020440 galRoot Intrusion—Unpaved surface
Oct 15, 2019230 galEquipment Failure—Building or Structure;Paved Surface;Unpaved surface
Oct 12, 2019540 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Sep 15, 20192 galEquipment Failure—Unpaved surface
Feb 16, 201985 galEquipment Failure—Building or Structure;Unpaved surface
Jan 4, 20191 galEquipment FailureYesSurface Water
Aug 31, 2018142 galRoot Intrusion—Building or Structure
Jun 28, 2018300 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Mar 7, 201810 galEquipment Failure—Unpaved surface
Feb 20, 201850 galEquipment Failure—Unpaved surface
Dec 25, 2017680 galGrease / FOG—Separate Storm Drain;Unpaved surface
Dec 7, 201715 galRoot Intrusion—Street/Curb and Gutter
Nov 18, 2017473 galGrease / FOG—Building or Structure;Paved Surface;Unpaved surface
Oct 30, 201753 galRoot Intrusion—Unpaved surface
Oct 29, 2017396 galEquipment Failure—Building or Structure;Other (specify below);Paved Surface
Oct 11, 20178 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved surface
Sep 15, 20174K galRoot IntrusionYesDrainage Channel;Unpaved surface
Jun 25, 2017581K galEquipment FailureYesDrainage Channel;Unpaved surface
Jun 24, 201727 galRoot Intrusion—Unpaved surface
May 22, 201726K galRoot IntrusionYesDrainage Channel;Unpaved surface
Apr 22, 2017130 galRoot Intrusion—Street/Curb and Gutter
Mar 18, 2017637K galEquipment FailureYesDrainage Channel;Paved Surface;Street/Curb and Gutter
Mar 17, 201765 galEquipment Failure—Street/Curb and Gutter
Feb 22, 20171K galGrease / FOGYesBuilding or Structure;Combined Storm Drain (Combined CS only);Paved Surface;Street/Curb and Gutter
Jan 30, 20172K galEquipment FailureYesDrainage Channel
Jan 5, 2017757 galRoot Intrusion—Building or Structure;Street/Curb and Gutter;Unpaved surface
Dec 26, 2016162 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Dec 4, 20161.6M galEquipment FailureYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Oct 14, 201622 galRoot Intrusion—Street/Curb and Gutter
Sep 27, 20161 galEquipment Failure—Other (specify below)
Jul 1, 201625 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jun 15, 201620 galOther / Unknown—Unpaved surface
Apr 23, 2016448 galRoot Intrusion—Separate Storm Drain
Feb 25, 201616 galGrease / FOG—Building or Structure
Jan 22, 201624 galRoot Intrusion—Unpaved surface
Jan 11, 20165 galRoot Intrusion—Unpaved surface
Jan 10, 2016915 galGrease / FOG—Separate Storm Drain
Nov 21, 20151 galOther / Unknown—Building or Structure
Nov 21, 2015359 galOther / Unknown—Unpaved surface
Nov 17, 2015100 galEquipment Failure—Unpaved surface
Nov 10, 201540 galEquipment Failure—Unpaved surface
Nov 2, 201520 galEquipment Failure—Unpaved surface
Sep 12, 201565 galRoot Intrusion—Paved Surface
Aug 8, 201555 galEquipment Failure—Unpaved surface
Jul 10, 201521 galRoot Intrusion—Paved Surface
Jun 27, 2015188 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
May 27, 201520 galEquipment Failure—Paved Surface
May 2, 201548 galEquipment Failure—Building or Structure;Paved Surface;Street/Curb and Gutter
May 2, 2015300 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Apr 6, 201515 galEquipment Failure—Other (specify below)
Mar 12, 2015674 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Feb 12, 2015142 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Jan 26, 201598K galEquipment Failure—Unpaved surface
Jan 24, 201513K galEquipment Failure—Unpaved surface
Jan 22, 201517K galEquipment Failure—Unpaved surface
Jan 3, 201515 galGrease / FOG—Paved Surface
Sep 26, 2014265 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Sep 8, 20144 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Aug 18, 20147K galEquipment FailureYesOther (specify below)
Jun 1, 2014256 galGrease / FOG—Separate Storm Drain
Mar 28, 201476 galRoot Intrusion—Paved Surface;Unpaved surface
Mar 18, 20142K galRoot Intrusion—Unpaved surface
Mar 16, 2014150 galGrease / FOG—Separate Storm Drain
Mar 10, 2014100 galRoot Intrusion—Paved Surface;Separate Storm Drain
Feb 13, 2014550 galEquipment Failure—Drainage Channel;Unpaved surface
Feb 12, 201468 galRoot Intrusion—Building or Structure;Unpaved surface
Feb 1, 201450 galGrease / FOG—Other (specify below);Street/Curb and Gutter
Jan 10, 201422 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Dec 23, 2013200 galEquipment Failure—Street/Curb and Gutter
Nov 27, 2013835 galEquipment Failure—Separate Storm Drain
Oct 25, 2013591 galOther / Unknown—Unpaved surface
Oct 8, 20137K galEquipment FailureYesDrainage Channel
Sep 9, 2013227 galGrease / FOG—Unpaved surface
Jul 25, 2013138K galOther / UnknownYesSeparate storm drain;Street/curb and gutter;Unpaved surface
Mar 26, 201356 galOther / UnknownYesSeparate storm drain;Street/curb and gutter;Surface water
Mar 16, 20137 galGrease / FOG—Street/curb and gutter;Unpaved surface
Jan 21, 20131K galOther / Unknown—Building or structure
Jan 2, 20132 galRoot Intrusion—Street/curb and gutter
Dec 27, 201210 galRoot Intrusion—Unpaved surface
Dec 25, 201217 galRoot Intrusion—Street/curb and gutter
Nov 7, 201220 galOther / Unknown—Unpaved surface
Aug 20, 2012401 galRoot Intrusion—Separate storm drain;Street/curb and gutter
Aug 13, 2012455 galRoot Intrusion—Separate storm drain;Street/curb and gutter
Jul 23, 20121 galRoot Intrusion—Unpaved surface
Jun 10, 2012864 galOther / UnknownYesCombined storm drain (combined CS only);Street/curb and gutter
May 26, 201210 galGrease / FOG—Other (specify below)
May 7, 201215 galRoot Intrusion—Unpaved surface
Mar 14, 2012679 galOther / Unknown—Unpaved surface
Mar 11, 2012290 galOther / UnknownYesBuilding or structure;Combined storm drain (combined CS only);Other paved surface;Separate storm drain;Street/curb and gutter;Surface water;Unpaved surface
Mar 8, 20123 galEquipment Failure—Other paved surface
Feb 18, 2012200 galOther / Unknown—Unpaved surface
Feb 17, 20124K galOther / Unknown—Unpaved surface
Feb 6, 20123K galEquipment FailureYesOther (specify below)
Jan 28, 20121K galRoot Intrusion—Other paved surface;Separate storm drain;Street/curb and gutter
Jan 17, 2012150 galCapacity Issue—Unpaved surface
Jan 7, 20123 galRoot Intrusion—Street/curb and gutter
Dec 29, 20111 galEquipment Failure—Other (specify below)
Dec 9, 20115K galGrease / FOG—Building or structure;Other paved surface
Dec 6, 2011828 galRoot Intrusion—Separate storm drain;Street/curb and gutter
Nov 3, 2011358 galRoot Intrusion—Separate storm drain;Street/curb and gutter;Other (specify below)
Nov 1, 2011100 galEquipment Failure—Unpaved surface
Oct 31, 2011100 galRoot Intrusion—Unpaved surface
Oct 28, 201127K galRoot Intrusion—Unpaved surface
Oct 8, 201175 galOther / Unknown—Other paved surface
Sep 27, 201110 galRoot Intrusion—Unpaved surface
Sep 6, 2011100 galRoot Intrusion—Unpaved surface
Sep 4, 20112K galRoot Intrusion—Unpaved surface
Aug 28, 201125 galOther / Unknown—Other paved surface;Unpaved surface
Aug 25, 2011322 galRoot Intrusion—Unpaved surface
Aug 8, 20111 galEquipment Failure—Unpaved surface
Aug 5, 201110 galRoot Intrusion—Building or structure
Jul 27, 2011100 galOther / Unknown—Unpaved surface
Jun 25, 20113 galOther / Unknown—Unpaved surface
May 31, 20111 galOther / Unknown—Building or structure
May 28, 2011319 galGrease / FOG—Building or structure;Unpaved surface;Other (specify below)
May 13, 2011325 galRoot Intrusion—Building or structure
May 2, 2011700 galRoot IntrusionYesOther paved surface;Separate storm drain;Street/curb and gutter
May 1, 201182 galRoot Intrusion—Separate storm drain;Street/curb and gutter
Apr 27, 201150 galRoot Intrusion—Building or structure
Apr 8, 201120 galCapacity Issue—Unpaved surface
Apr 6, 2011150 galRoot Intrusion—Unpaved surface
Apr 4, 201115 galOther / Unknown—Unpaved surface
Mar 10, 20115 galRoot Intrusion—Unpaved surface
Feb 19, 201140 galGrease / FOG—Other paved surface
Feb 15, 20111 galRoot Intrusion—Other paved surface
Jan 28, 2011429 galEquipment Failure—Separate storm drain;Street/curb and gutter;Other (specify below)
Jan 14, 201115 galOther / Unknown—Unpaved surface
Dec 27, 20105 galOther / Unknown—Unpaved surface
Dec 25, 201035 galGrease / FOG—Separate storm drain;Street/curb and gutter
Dec 22, 20102K galCapacity IssueYesSeparate storm drain;Street/curb and gutter;Surface water
Dec 16, 20105 galGrease / FOG—Street/curb and gutter
Dec 11, 2010238 galGrease / FOG—Other paved surface;Street/curb and gutter;Unpaved surface
Dec 9, 20105 galRoot Intrusion—Unpaved surface
Nov 19, 201010 galGrease / FOG—Other paved surface
Nov 15, 20105 galOther / Unknown—Building or structure
Oct 24, 201071 galRoot Intrusion—Separate storm drain;Street/curb and gutter;Unpaved surface;Other (specify below)
Oct 5, 201075 galOther / Unknown—Street/curb and gutter;Unpaved surface
Sep 21, 20102K galRoot Intrusion—Building or structure;Other paved surface;Street/curb and gutter
Sep 21, 201050 galOther / Unknown—Other paved surface
Sep 11, 201025 galRoot Intrusion—Building or structure
Sep 2, 201015 galOther / Unknown—Unpaved surface

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