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California · California (CIWQS)

Benicia City

C
Often reaches water
Reported events
216
Total volume
172K gal
Reached waterways
41 (19%)
Reporting since
2007

What caused the overflows

Root Intrusion
72
Equipment Failure
66
Other / Unknown
52
Grease / FOG
25
Capacity Issue
1

Reported overflow events (showing 200 of 216)

DateVolumeCauseReached waterReceiving water
Apr 5, 20267K galRoot IntrusionYesCarquinez Straights
Feb 19, 2026185 galGrease / FOGYesCarquinez Straights
Dec 6, 20252K galGrease / FOG——
Nov 10, 2025100 galRoot Intrusion——
Sep 3, 20254K galEquipment FailureYesCarquinez Straits
Sep 2, 20257K galEquipment FailureYesCarquinez Straits
Mar 15, 202520K galRoot IntrusionYesCarquinez Straights
Feb 12, 20251K galEquipment FailureYesCarquinez Straits
Sep 18, 2024750 galGrease / FOG——
Apr 24, 20241K galRoot Intrusion——
Apr 8, 202460 galRoot Intrusion—NA
Feb 28, 2024500 galOther / UnknownYesSulphur Springs Creek
Sep 19, 2023675 galRoot Intrusion——
Jul 13, 20234K galRoot Intrusion——
Jan 9, 20239K galOther / UnknownYesSeparate Storm Drain
Dec 31, 202262 galOther / Unknown—Unpaved surface
Dec 31, 20225K galEquipment FailureYesSeparate Storm Drain;Unpaved surface
Dec 31, 2022990 galOther / UnknownYesSeparate Storm Drain
Dec 7, 202230 galEquipment Failure—Unpaved surface
Jul 30, 202230 galRoot Intrusion—Paved Surface;Separate Storm Drain
Apr 18, 202254 galEquipment FailureYesSeparate Storm Drain
Nov 16, 2021150 galEquipment FailureYesSeparate Storm Drain
Oct 24, 20212K galCapacity Issue—Unpaved surface
Oct 24, 20212K galOther / Unknown—Paved Surface
Oct 11, 2021109 galRoot Intrusion—Separate Storm Drain
Dec 9, 2020320 galEquipment FailureYesSeparate Storm Drain;Street/Curb and Gutter
Nov 25, 202039K galEquipment FailureYesPaved Surface;Separate Storm Drain
Nov 23, 202013 galEquipment Failure—Separate Storm Drain
Nov 19, 202053 galEquipment Failure—Separate Storm Drain
Nov 15, 202068 galEquipment Failure—Separate Storm Drain
Oct 6, 202013 galOther / Unknown—Separate Storm Drain
Oct 4, 20202K galOther / UnknownYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Oct 3, 202013 galOther / Unknown—Separate Storm Drain
Sep 25, 202028 galEquipment Failure—Street/Curb and Gutter
Sep 24, 202015K galEquipment FailureYesSurface Water;Unpaved surface
Aug 31, 202080 galOther / Unknown—Separate Storm Drain
May 5, 2020160 galRoot Intrusion—Street/Curb and Gutter
Mar 20, 20203 galEquipment Failure—Unpaved surface
Jan 18, 20203K galEquipment FailureYesSurface Water
Jan 11, 202013 galEquipment Failure—Paved Surface;Separate Storm Drain
Nov 26, 201941 galRoot IntrusionYesSeparate Storm Drain;Street/Curb and Gutter
Sep 3, 20195 galEquipment Failure—Paved Surface;Unpaved surface
Jul 1, 201910 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 11, 201987 galGrease / FOG—Street/Curb and Gutter
May 28, 2019118 galEquipment Failure—Paved Surface;Unpaved surface
May 25, 2019106 galEquipment Failure—Street/Curb and Gutter
Apr 2, 201990 galOther / UnknownYesSeparate Storm Drain;Street/Curb and Gutter
Mar 21, 2019127 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Mar 14, 201976 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Jan 18, 201946 galEquipment Failure—Paved Surface
Jan 4, 20191K galGrease / FOG—Paved Surface;Street/Curb and Gutter;Unpaved surface
Jan 2, 2019836 galEquipment FailureYesSurface Water
Dec 18, 2018344 galRoot IntrusionYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 21, 2018147 galRoot IntrusionYesOther (specify below);Separate Storm Drain
Sep 24, 201859 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 17, 20185 galRoot Intrusion—Street/Curb and Gutter
Jun 18, 2018118 galEquipment Failure—Street/Curb and Gutter
Apr 3, 2018300 galEquipment FailureYesSeparate Storm Drain
Mar 6, 20184 galRoot Intrusion—Paved Surface
Jan 25, 2018153 galRoot Intrusion—Street/Curb and Gutter
Oct 26, 20172 galRoot Intrusion—Unpaved surface
Sep 20, 2017141 galOther / Unknown—Paved Surface;Unpaved surface
Mar 30, 201724 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter
Mar 15, 201710 galRoot Intrusion—Drainage Channel;Unpaved surface
Feb 21, 201711 galEquipment Failure—Street/Curb and Gutter
Feb 14, 201783 galEquipment Failure—Building or Structure;Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 10, 2017850 galGrease / FOGYesSurface Water
Dec 5, 201636 galRoot Intrusion—Unpaved surface
Nov 27, 201673 galRoot Intrusion—Street/Curb and Gutter
Nov 25, 201618 galRoot Intrusion—Street/Curb and Gutter
Oct 11, 2016127 galEquipment Failure—Unpaved surface
Aug 29, 201616 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 30, 201643 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
May 4, 2016257 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Apr 12, 20164 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Mar 27, 20162K galEquipment FailureYesDrainage Channel;Unpaved surface
Mar 25, 20161K galRoot Intrusion—Unpaved surface
Feb 17, 2016205 galEquipment Failure—Paved Surface;Unpaved surface
Jan 19, 201659 galRoot IntrusionYesPaved Surface;Separate Storm Drain;Unpaved surface
Jan 7, 2016131 galOther / Unknown—Unpaved surface
Dec 15, 201552 galEquipment Failure—Paved Surface;Unpaved surface
Dec 9, 2015257 galEquipment Failure—Paved Surface;Unpaved surface
Oct 10, 201535 galRoot Intrusion—Paved Surface
Aug 18, 2015280 galEquipment Failure—Paved Surface;Separate Storm Drain
Jul 30, 201527 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Jul 12, 201567 galRoot Intrusion—Paved Surface;Separate Storm Drain
Jun 27, 201515 galRoot Intrusion—Building or Structure
May 8, 201557 galEquipment Failure—Other (specify below)
Mar 8, 2015179 galEquipment Failure—Paved Surface
Feb 8, 2015576 galRoot IntrusionYesSurface Water
Jan 28, 2015183 galEquipment Failure—Unpaved surface
Jan 23, 201520 galEquipment Failure—Other (specify below)
Jan 15, 2015134 galEquipment Failure—Separate Storm Drain;Unpaved surface
Jan 12, 2015135 galRoot Intrusion—Unpaved surface
Dec 26, 201412 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Dec 18, 201438 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter
Dec 3, 201451 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Nov 9, 201417 galEquipment Failure—Paved Surface;Separate Storm Drain
Oct 29, 20143 galEquipment Failure—Street/Curb and Gutter
Oct 28, 201418 galRoot Intrusion—Street/Curb and Gutter
Oct 18, 2014149 galGrease / FOG—Unpaved surface
Oct 17, 20145 galRoot Intrusion—Paved Surface
Sep 11, 201419 galEquipment Failure—Paved Surface
Sep 8, 201420 galRoot Intrusion—Paved Surface
Aug 18, 201426 galEquipment Failure—Paved Surface;Separate Storm Drain
Jun 24, 201412 galGrease / FOG—Paved Surface;Separate Storm Drain
Jun 17, 201436 galEquipment Failure—Unpaved surface
Jun 6, 201420 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 5, 201410 galEquipment Failure—Other (specify below)
Jun 2, 20145 galEquipment Failure—Paved Surface
Apr 28, 2014210 galEquipment Failure—Paved Surface;Unpaved surface
Mar 29, 201440 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 26, 201430 galEquipment Failure—Street/Curb and Gutter
Feb 10, 201474 galRoot Intrusion—Combined Storm Drain (Combined CS only)
Jan 18, 2014277 galRoot Intrusion—Paved Surface
Jan 16, 20142K galGrease / FOG—Unpaved surface
Dec 16, 2013740 galEquipment FailureYesOther (specify below)
Nov 26, 201320 galRoot Intrusion—Other (specify below)
Nov 14, 2013119 galGrease / FOG—Street/Curb and Gutter
Nov 6, 2013416 galGrease / FOG—Paved Surface
Oct 24, 201355 galEquipment Failure—Paved Surface
Oct 9, 201393 galRoot Intrusion—Unpaved surface
Sep 5, 201335 galOther / Unknown—Unpaved surface
Jul 25, 201320 galOther / Unknown—Street/curb and gutter
Jun 18, 201360 galOther / Unknown—Separate storm drain;Street/curb and gutter
Apr 3, 201350 galEquipment Failure—Other (specify below)
Mar 29, 201375 galOther / Unknown—Street/curb and gutter
Feb 14, 201325 galRoot Intrusion—Other paved surface
Jan 23, 201330 galRoot Intrusion—Other (specify below)
Jan 14, 2013100 galOther / Unknown—Other (specify below)
Dec 27, 2012375 galOther / UnknownYesSurface water
Dec 5, 201225 galOther / Unknown—Unpaved surface
Nov 21, 2012930 galOther / Unknown—Unpaved surface
Nov 2, 2012900 galRoot IntrusionYesSurface water
Nov 1, 201240 galOther / Unknown—Other paved surface
Oct 29, 201280 galOther / Unknown—Other (specify below)
Oct 10, 20124 galEquipment Failure—Unpaved surface
Oct 9, 201255 galOther / Unknown—Unpaved surface
Oct 1, 201285 galGrease / FOG—Other paved surface
Aug 23, 20125 galOther / Unknown—Other paved surface
Aug 7, 201250 galGrease / FOG—Street/curb and gutter
Aug 2, 20121 galOther / Unknown—Other paved surface
Apr 17, 20125 galRoot Intrusion—Other paved surface
Mar 10, 201220 galOther / Unknown—Building or structure
Jan 31, 201250 galRoot Intrusion—Street/curb and gutter
Dec 19, 20112 galOther / Unknown—Unpaved surface
Dec 4, 20112K galRoot IntrusionYesSeparate storm drain;Street/curb and gutter;Surface water
Nov 11, 20112K galOther / UnknownYesSurface water
Nov 4, 201150 galRoot Intrusion—Street/curb and gutter
Oct 27, 2011100 galOther / Unknown—Street/curb and gutter
Aug 16, 20111K galEquipment FailureYesSurface water
Jun 10, 201155 galRoot Intrusion—Unpaved surface
Mar 3, 20112 galRoot Intrusion—Building or structure
Feb 3, 201150 galOther / Unknown—Other paved surface;Street/curb and gutter;Unpaved surface
Feb 1, 201120 galRoot Intrusion—Other paved surface;Separate storm drain
Jan 2, 201150 galOther / Unknown—Other paved surface
Dec 20, 2010930 galGrease / FOG—Other paved surface
Sep 16, 201015 galRoot Intrusion—Street/curb and gutter
Sep 6, 201092 galRoot Intrusion—Street/curb and gutter
Jul 1, 2010130 galOther / UnknownYesStorm drain;Street/curb and gutter;Surface water
Jun 18, 201050 galGrease / FOG—Street/curb and gutter
May 21, 20102 galRoot Intrusion—Other paved surface
May 6, 2010509 galOther / UnknownYesUnpaved surface;Other (specify below)
Feb 19, 201025 galRoot Intrusion—Storm drain;Street/curb and gutter
Jan 29, 2010100 galEquipment Failure—Other paved surface;Unpaved surface
Dec 29, 2009125 galGrease / FOG—Other paved surface;Storm drain;Street/curb and gutter
Oct 23, 200950 galRoot Intrusion—Other paved surface
Oct 22, 200938 galGrease / FOG—Storm drain
Oct 8, 200985 galEquipment Failure—Other (specify below)
Sep 18, 200950 galOther / Unknown—Unpaved surface
Sep 15, 2009240 galOther / UnknownYesStorm drain
Aug 29, 200950 galGrease / FOG—Other paved surface
Aug 5, 200925 galOther / Unknown—Other paved surface
Aug 4, 2009110 galOther / Unknown—Unpaved surface
Jul 28, 200950 galOther / Unknown—Other paved surface
Jul 19, 2009105 galRoot Intrusion—Storm drain;Street/curb and gutter
May 11, 200996 galRoot Intrusion—Unpaved surface;Other (specify below)
May 5, 200950 galOther / Unknown—Street/curb and gutter
Apr 17, 20091 galOther / Unknown—Other paved surface
Apr 16, 200915 galEquipment FailureYesSeparate storm drain
Apr 14, 20091 galEquipment Failure—Other paved surface
Apr 4, 20092K galRoot IntrusionYesUnpaved surface
Mar 6, 2009100 galEquipment Failure—Other paved surface
Mar 4, 2009200 galEquipment Failure—Other paved surface
Feb 26, 200950 galEquipment Failure—Other paved surface;Street/curb and gutter;Unpaved surface
Feb 8, 2009200 galOther / Unknown—Building or structure
Dec 30, 2008500 galRoot Intrusion—Unpaved surface
Dec 29, 200810 galRoot Intrusion—Unpaved surface
Nov 27, 200840 galOther / Unknown—Storm drain
Nov 18, 200850 galEquipment Failure—Street/curb and gutter
Nov 13, 2008500 galRoot Intrusion—Street/curb and gutter
Sep 7, 20085 galRoot Intrusion—Storm drain;Street/curb and gutter
Sep 5, 20089 galOther / Unknown—Building or structure
Aug 5, 2008515 galRoot Intrusion—Building or structure;Other paved surface;Unpaved surface
Jun 23, 200820 galEquipment Failure—Storm drain;Street/curb and gutter
Jun 10, 2008150 galEquipment Failure—Other paved surface;Separate storm drain;Unpaved surface
May 30, 200842 galRoot Intrusion—Street/curb and gutter
May 20, 20083K galGrease / FOGYesStreet/curb and gutter;Surface water
Mar 31, 200810 galOther / Unknown—Street/curb and gutter
Feb 15, 200850 galOther / Unknown—Street/curb and gutter

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