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California · California (CIWQS)

City of Santa Clarita

F
Usually reaches water
Reported events
88
Total volume
481K gal
Reached waterways
54 (61%)
Reporting since
2007

What caused the overflows

Other / Unknown
38
Root Intrusion
24
Equipment Failure
16
Grease / FOG
10

Reported overflow events (showing 88 of 88)

DateVolumeCauseReached waterReceiving water
Mar 20, 2026900 galRoot IntrusionYesSanta Clara River
Mar 20, 20261K galEquipment FailureYesSanta Clara River
Feb 25, 202650 galEquipment Failure——
Jan 31, 2026750 galEquipment FailureYesSanta Clara River
Jan 30, 20267K galRoot IntrusionYesSanta Clara River
Dec 23, 20251K galEquipment FailureYesSanta Clara River
Sep 22, 2025200 galRoot IntrusionYesSanta Clara River
Sep 21, 20252K galEquipment FailureYesSanta Clara River
Sep 9, 2025800 galEquipment FailureYesSanta Clara River
Aug 23, 20253K galGrease / FOGYesSanta Clara River
Jul 7, 202550 galRoot Intrusion——
Jun 23, 2025545 galEquipment FailureYesSanta Clara River
May 3, 202550 galEquipment Failure——
Feb 3, 2025100 galEquipment Failure——
Jan 9, 20252K galEquipment FailureYesSanta Clara River
Sep 24, 20243K galRoot IntrusionYesSanta Clara River
May 15, 2024400 galGrease / FOGYesSanta Clara River
Feb 10, 202410K galRoot IntrusionYesSanta Clara River
Jan 4, 202450 galGrease / FOG——
Dec 23, 2023600 galGrease / FOG——
Sep 5, 202350 galGrease / FOG——
Aug 31, 2023425 galRoot IntrusionYesSanta Clara River
Aug 2, 202315K galRoot IntrusionYesSanta Clara River
Jun 6, 20239K galEquipment Failure——
Apr 13, 2023415 galOther / UnknownYesDrainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter
Mar 9, 2023610 galOther / UnknownYesOther (specify below);Unpaved surface
Jan 12, 20231K galGrease / FOGYesOther (specify below);Separate Storm Drain;Street/Curb and Gutter
Dec 6, 2022680 galOther / UnknownYesOther (specify below);Separate Storm Drain
Apr 5, 2022875 galOther / UnknownYesBuilding or Structure;Drainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter
Dec 22, 202020K galOther / Unknown—Separate Storm Drain
Oct 17, 20201K galOther / UnknownYesBuilding or Structure;Drainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter
May 5, 20206K galOther / Unknown—Other (specify below);Unpaved surface
Mar 2, 2020700 galOther / UnknownYesDrainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter
Feb 19, 2020850 galOther / UnknownYesBuilding or Structure;Drainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter
Jan 30, 20201K galOther / UnknownYesOther (specify below);Separate Storm Drain;Street/Curb and Gutter
Oct 3, 20191K galOther / UnknownYesOther (specify below);Separate Storm Drain
Sep 10, 2019200 galOther / Unknown—Paved Surface;Street/Curb and Gutter
May 18, 20193K galEquipment FailureYesDrainage Channel;Other (specify below);Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Feb 16, 2019200 galOther / Unknown—Other (specify below)
Dec 12, 201814K galOther / UnknownYesDrainage Channel;Other (specify below);Separate Storm Drain
Oct 10, 20185K galOther / UnknownYesDrainage Channel;Other (specify below);Separate Storm Drain;Unpaved surface
Jul 29, 201819K galOther / Unknown—Other (specify below)
Jun 18, 201828K galOther / UnknownYesOther (specify below);Separate Storm Drain
May 28, 201834K galOther / UnknownYesOther (specify below);Surface Water
May 21, 201827K galEquipment FailureYesOther (specify below);Surface Water
May 20, 201813K galOther / UnknownYesOther (specify below);Separate Storm Drain
Apr 10, 201826K galOther / UnknownYesDrainage Channel;Other (specify below);Separate Storm Drain
Jan 21, 201825 galOther / Unknown—Other (specify below)
May 26, 2017100 galOther / UnknownYesOther (specify below)
May 17, 2017500 galOther / Unknown—Other (specify below);Separate Storm Drain
Dec 20, 2016185K galEquipment FailureYesOther (specify below);Surface Water;Unpaved surface
Oct 26, 201625 galOther / Unknown—Other (specify below);Paved Surface
Aug 15, 20161K galOther / Unknown—Building or Structure;Other (specify below);Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 29, 2015300 galOther / UnknownYesBuilding or Structure;Drainage Channel;Separate Storm Drain;Street/Curb and Gutter
Nov 19, 2015350 galOther / UnknownYesDrainage Channel;Separate Storm Drain
Oct 18, 2015500 galOther / Unknown—Other (specify below)
Sep 18, 2015100 galOther / Unknown—Separate Storm Drain
Sep 9, 2015100 galGrease / FOG—Building or Structure
May 4, 20151 galRoot Intrusion—Other (specify below)
Mar 23, 20155 galOther / Unknown—Other (specify below)
Feb 8, 201550 galRoot Intrusion—Building or Structure;Other (specify below)
Dec 20, 2014300 galOther / UnknownYesOther (specify below);Separate Storm Drain;Street/Curb and Gutter
Sep 3, 20143K galOther / UnknownYesOther (specify below)
Jun 25, 201410 galRoot Intrusion—Unpaved surface
May 27, 2014500 galRoot Intrusion—Unpaved surface
Apr 14, 20145K galOther / Unknown—Unpaved surface
Mar 16, 201418K galEquipment FailureYesOther (specify below)
Nov 8, 2013150 galRoot Intrusion—Other (specify below)
Oct 2, 201345 galOther / UnknownYesOther (specify below);Separate Storm Drain
Apr 3, 2013500 galRoot IntrusionYesOther (specify below)
Mar 28, 2011700 galOther / Unknown—Street/curb and gutter
Jan 8, 201130 galRoot Intrusion—Building or structure
Nov 1, 2010240 galEquipment Failure—Unpaved surface
Sep 4, 20101K galOther / UnknownYesStorm drain;Other (specify below)
Jul 12, 201010 galRoot Intrusion—Other (specify below)
Nov 24, 2009150 galRoot IntrusionYesOther (specify below)
Oct 15, 200925 galRoot IntrusionYesBuilding or structure;Other (specify below)
Jan 2, 2009500 galRoot IntrusionYesOther (specify below)
Dec 21, 2008700 galOther / UnknownYesStreet/curb and gutter;Other (specify below)
Nov 24, 200850 galGrease / FOG—Other (specify below)
Aug 9, 2008300 galRoot IntrusionYesOther (specify below)
Jul 8, 2008150 galOther / UnknownYesOther (specify below)
May 2, 2008100 galRoot IntrusionYesOther (specify below)
Mar 25, 2008200 galRoot IntrusionYesStorm drain
Feb 13, 2008200 galRoot IntrusionYesStorm drain
Apr 24, 2007200 galGrease / FOG—Other (specify below)
Apr 13, 2007100 galGrease / FOG—Other (specify below)
Apr 4, 2007800 galRoot IntrusionYesOther (specify below)

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