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California · California (CIWQS)

Belmont City

B
Seldom reaches water
Reported events
64
Total volume
796K gal
Reached waterways
8 (13%)
Reporting since
2007

What caused the overflows

Root Intrusion
31
Equipment Failure
15
Other / Unknown
12
Grease / FOG
4
Rainfall / Flooding
2

Reported overflow events (showing 64 of 64)

DateVolumeCauseReached waterReceiving water
Apr 22, 2026158 galOther / Unknown——
Apr 12, 202685 galEquipment Failure——
Feb 16, 2026518 galRoot Intrusion—Belmont Creek
Jan 29, 2026249 galGrease / FOG——
Dec 21, 2025741 galRoot Intrusion——
Nov 3, 2025614 galRoot Intrusion——
Apr 15, 20251K galRoot Intrusion——
Oct 17, 2024239 galGrease / FOG——
Dec 31, 2022355K galOther / UnknownYesDrainage Channel
Jan 29, 202217 galRoot Intrusion—Paved Surface
Sep 1, 2021140 galRoot Intrusion—Separate Storm Drain
Nov 7, 20203K galRoot Intrusion—Building or Structure;Paved Surface;Street/Curb and Gutter;Unpaved surface
Jul 26, 20202K galRoot Intrusion—Unpaved surface
Mar 20, 2020262 galRoot Intrusion—Separate Storm Drain
Jan 3, 20203K galEquipment Failure—Building or Structure;Street/Curb and Gutter
Mar 11, 201910 galEquipment Failure—Paved Surface
Jan 31, 2019377 galEquipment Failure—Unpaved surface
Sep 4, 20177K galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jul 31, 2017643 galOther / Unknown—Building or Structure
Mar 17, 2017450 galRoot Intrusion—Street/Curb and Gutter;Unpaved surface
Nov 18, 201618 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Oct 20, 20161K galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jul 29, 2016253 galEquipment Failure—Unpaved surface
Apr 1, 201680 galOther / Unknown—Building or Structure
Feb 27, 2016377 galRoot Intrusion—Building or Structure;Separate Storm Drain
Jun 24, 2015280 galEquipment FailureYesDrainage Channel;Separate Storm Drain;Unpaved surface
Jan 28, 20156K galOther / UnknownYesDrainage Channel
Dec 11, 2014360K galOther / UnknownYesDrainage Channel
Nov 5, 2014177 galEquipment Failure—Paved Surface
Aug 4, 2014610 galRoot Intrusion—Unpaved surface
Jul 1, 2014187 galEquipment Failure—Unpaved surface
Apr 27, 2014910 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved surface
Apr 24, 201423 galOther / Unknown—Building or Structure
Dec 16, 2013432 galEquipment Failure—Unpaved surface
May 6, 201313K galOther / UnknownYesSurface water
Feb 4, 201382 galOther / Unknown—Building or structure
Dec 2, 201212K galRainfall / FloodingYesSeparate storm drain
Nov 30, 201222K galRainfall / FloodingYesSeparate storm drain
Nov 26, 201250 galRoot Intrusion—Unpaved surface
Oct 1, 2012344 galRoot Intrusion—Building or structure
May 5, 2012120 galOther / Unknown—Other paved surface;Street/curb and gutter;Unpaved surface
Jan 21, 201280 galRoot Intrusion—Unpaved surface
Jan 4, 201215 galRoot Intrusion—Other paved surface;Separate storm drain;Street/curb and gutter
Jan 22, 2011200 galRoot Intrusion—Unpaved surface
Aug 1, 201010 galRoot Intrusion—Unpaved surface
Jan 31, 201015 galRoot Intrusion—Unpaved surface
Oct 21, 2009225 galOther / Unknown—Building or structure
Jul 2, 200930 galEquipment Failure—Unpaved surface
Apr 29, 2009250 galRoot Intrusion—Other paved surface;Storm drain;Street/curb and gutter
Feb 12, 200910 galRoot Intrusion—Street/curb and gutter
Nov 14, 20085 galRoot Intrusion—Storm drain;Street/curb and gutter
Aug 3, 200880 galGrease / FOG—Storm drain;Street/curb and gutter
Jun 4, 2008300 galEquipment Failure—Building or structure
May 29, 200810 galGrease / FOG—Unpaved surface
May 19, 200880 galRoot Intrusion—Other paved surface
May 19, 200850 galOther / Unknown—Unpaved surface
May 4, 200820 galRoot Intrusion—Unpaved surface
May 1, 2008400 galRoot IntrusionYesOther (specify below)
Apr 25, 200815 galRoot Intrusion—Building or structure
Jan 25, 2008120 galRoot Intrusion—Building or structure
Nov 15, 2007400 galEquipment Failure—Storm drain;Street/curb and gutter
Oct 9, 200734 galRoot Intrusion—Building or structure
Aug 15, 200740 galRoot Intrusion—Building or structure
May 15, 2007150 galRoot Intrusion—Street/curb and gutter

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