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California · California (CIWQS)

Vallecitos Water District

D
Frequently reaches water
Reported events
38
Total volume
899K gal
Reached waterways
16 (42%)
Reporting since
2007

What caused the overflows

Other / Unknown
20
Root Intrusion
7
Equipment Failure
7
Grease / FOG
2
Rainfall / Flooding
2

Reported overflow events (showing 38 of 38)

DateVolumeCauseReached waterReceiving water
Jun 21, 20262K galRoot IntrusionYesMS4 and or San Marcos Creek
Dec 22, 202512K galEquipment Failure—Unnamed Bioswale.
Dec 4, 2025990 galEquipment Failure—N/A
Dec 4, 2025990 galEquipment Failure—N/A
Feb 13, 20252K galRainfall / FloodingYesUnnamed Creek
Jul 20, 20243K galOther / UnknownYesSan Marcos Creek
Jan 22, 20241K galRainfall / FloodingYesUnnamed creek
Dec 21, 202367 galRoot Intrusion——
Mar 15, 202375K galOther / UnknownYesSurface Water
Jan 16, 202389K galOther / UnknownYesBeach;Surface Water
Nov 18, 2021986 galOther / UnknownYesSurface Water
Apr 10, 202050K galOther / Unknown—Other (specify below)
Apr 10, 202016K galOther / UnknownYesOther (specify below)
Feb 14, 20192K galOther / UnknownYesSurface Water
Feb 2, 201923K galOther / UnknownYesOther (specify below)
Sep 2, 2018600 galEquipment Failure—Other (specify below)
May 25, 2018200 galGrease / FOG—Drainage Channel;Unpaved surface
Jan 16, 20188K galOther / Unknown—Other (specify below)
Feb 28, 2017435K galOther / UnknownYesBeach
Nov 19, 2016210 galEquipment Failure—Separate Storm Drain
Apr 26, 201657K galOther / UnknownYesSurface Water
Jan 30, 2016305 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 8, 2015104K galOther / Unknown—Other (specify below)
Sep 30, 2013320 galRoot Intrusion—Drainage Channel;Other (specify below);Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Aug 28, 201325 galOther / Unknown—Other (specify below);Street/Curb and Gutter;Unpaved surface
Sep 8, 201230 galRoot Intrusion—Other paved surface;Street/curb and gutter;Unpaved surface;Other (specify below)
May 7, 20123K galOther / UnknownYesUnpaved surface;Other (specify below)
Oct 12, 2011258 galOther / Unknown—Other paved surface;Separate storm drain;Street/curb and gutter;Other (specify below)
Jan 5, 20112K galRoot Intrusion—Building or structure;Other paved surface;Separate storm drain;Street/curb and gutter;Unpaved surface;Other (specify below)
Dec 22, 20102K galOther / UnknownYesSurface water;Other (specify below)
Dec 22, 20106K galOther / UnknownYesSurface water;Other (specify below)
Dec 22, 201046 galOther / Unknown—Separate storm drain;Street/curb and gutter;Other (specify below)
Nov 25, 20101K galGrease / FOGYesSeparate storm drain;Street/curb and gutter;Surface water;Other (specify below)
Feb 15, 200915 galEquipment Failure—Unpaved surface;Other (specify below)
Feb 3, 20094 galOther / Unknown—Other paved surface;Storm drain;Street/curb and gutter
Feb 1, 20087 galRoot Intrusion—Other (specify below)
Sep 10, 20077 galOther / Unknown—Street/curb and gutter
Feb 7, 200737 galEquipment Failure—Other (specify below)

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