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California · California (CIWQS)

Monterey City

D
Frequently reaches water
Reported events
197
Total volume
160K gal
Reached waterways
71 (36%)
Reporting since
2008

What caused the overflows

Root Intrusion
79
Equipment Failure
56
Other / Unknown
43
Grease / FOG
19

Reported overflow events (showing 197 of 197)

DateVolumeCauseReached waterReceiving water
Aug 23, 202556 galGrease / FOG——
Jul 17, 202579K galGrease / FOGYesUnnamed dry ephemeral creek
Jul 16, 2025200 galRoot IntrusionYesUn-named ephemeral creek
Jul 10, 202590 galRoot Intrusion——
Feb 13, 2025600 galRoot IntrusionYesUn-named seasonal creek
Dec 11, 2024200 galEquipment FailureYesPacific Ocean
Nov 25, 20242K galEquipment FailureYesLake El Estero
Nov 1, 2024200 galRoot Intrusion——
Sep 22, 2024500 galEquipment FailureYesPacific Ocean
Jul 15, 2024600 galGrease / FOGYesUn named ephemeral creek
May 15, 2024100 galEquipment Failure——
Feb 18, 202450 galEquipment FailureYesUpper Wyndemere
Sep 25, 20231K galOther / UnknownYesPacific Ocean
May 7, 20235 galRoot Intrusion—Paved Surface
May 5, 20235 galEquipment Failure—Unpaved surface
Apr 20, 2023350 galEquipment Failure—Paved Surface;Unpaved surface
Mar 26, 2023800 galEquipment FailureYesSurface Water
Mar 2, 202350 galEquipment Failure—Other (specify below)
Feb 14, 2023100 galRoot Intrusion—Paved Surface;Unpaved surface
Jan 27, 2023100 galRoot Intrusion—Unpaved surface
Dec 20, 2022200 galEquipment FailureYesBeach
Dec 6, 20224 galEquipment Failure—Building or Structure;Other (specify below);Paved Surface
Dec 3, 20225 galEquipment FailureYesBeach;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Jul 5, 202250 galEquipment FailureYesSurface Water
Apr 13, 20221 galEquipment Failure—Unpaved surface
Mar 13, 202225 galEquipment Failure—Paved Surface;Unpaved surface
Jan 28, 2022400 galRoot IntrusionYesDrainage Channel;Separate Storm Drain
Jan 5, 20222K galEquipment Failure—Building or Structure;Paved Surface;Unpaved surface
Dec 13, 202140 galOther / UnknownYesSurface Water
Dec 4, 202125 galRoot Intrusion—Separate Storm Drain
Oct 6, 202150 galEquipment Failure—Building or Structure;Other (specify below);Paved Surface
Jun 4, 20215 galEquipment Failure—Paved Surface
May 30, 202150 galRoot Intrusion—Building or Structure
May 19, 202150 galOther / UnknownYesSeparate Storm Drain;Surface Water
Jan 20, 202110 galRoot Intrusion—Unpaved surface
Dec 21, 202025 galRoot Intrusion—Unpaved surface
Dec 21, 2020100 galEquipment Failure—Paved Surface;Unpaved surface
Sep 29, 202050 galGrease / FOG—Other (specify below);Paved Surface;Street/Curb and Gutter
Mar 19, 202040 galEquipment FailureYesDrainage Channel;Paved Surface;Separate Storm Drain;Unpaved surface
Feb 24, 2020500 galEquipment FailureYesBeach
Jan 14, 20201K galEquipment FailureYesBeach;Drainage Channel;Separate Storm Drain
Jul 3, 201930 galRoot Intrusion—Unpaved surface
Jun 27, 2019250 galRoot IntrusionYesOther (specify below)
Jun 14, 2019200 galRoot Intrusion—Building or Structure
Jun 11, 20192K galEquipment FailureYesDrainage Channel
May 1, 201920 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Jan 29, 20192K galRoot IntrusionYesBeach;Surface Water
Jan 22, 2019100 galEquipment Failure—Paved Surface;Unpaved surface
Mar 10, 2018400 galEquipment FailureYesPaved Surface;Separate Storm Drain
Feb 28, 20181K galRoot IntrusionYesDrainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Feb 17, 2018400 galEquipment Failure—Unpaved surface
Feb 3, 201840 galEquipment Failure—Unpaved surface
Jan 10, 20182K galGrease / FOGYesPaved Surface;Separate Storm Drain
Nov 3, 2017200 galEquipment Failure—Paved Surface;Unpaved surface
Sep 26, 20171K galEquipment FailureYesDrainage Channel
Aug 23, 20175K galOther / UnknownYesBeach;Separate Storm Drain;Surface Water
Jun 25, 201710 galRoot Intrusion—Unpaved surface
May 14, 201750 galRoot IntrusionYesDrainage Channel
Mar 15, 201725 galEquipment Failure—Unpaved surface
Feb 27, 2017250 galEquipment FailureYesSeparate Storm Drain
Feb 19, 2017400 galRoot Intrusion—Paved Surface
Feb 13, 20175K galOther / UnknownYesSurface Water
Jan 8, 201710 galEquipment Failure—Paved Surface
Dec 29, 2016260 galRoot IntrusionYesOther (specify below)
Nov 18, 201625 galGrease / FOG—Paved Surface
Nov 9, 20161K galGrease / FOGYesCombined Storm Drain (Combined CS only);Drainage Channel;Paved Surface;Street/Curb and Gutter;Unpaved surface
Sep 28, 201610 galRoot Intrusion—Unpaved surface
Sep 11, 2016200 galEquipment Failure—Unpaved surface
Aug 20, 20165 galEquipment Failure—Unpaved surface
Jul 18, 2016100 galEquipment FailureYesSurface Water
Jun 27, 20162K galEquipment FailureYesDrainage Channel;Other (specify below);Separate Storm Drain
Apr 20, 201655 galRoot IntrusionYesSeparate Storm Drain;Street/Curb and Gutter
Apr 15, 20161K galRoot IntrusionYesOther (specify below)
Apr 10, 201640 galRoot Intrusion—Other (specify below)
Apr 1, 201620 galOther / Unknown—Separate Storm Drain
Mar 8, 201625 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Feb 19, 201640 galRoot Intrusion—Paved Surface
Jan 27, 2016550 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Dec 28, 2015100 galEquipment Failure—Unpaved surface
Dec 23, 20151K galEquipment FailureYesOther (specify below)
Nov 14, 2015100 galEquipment Failure—Unpaved surface
Sep 6, 2015500 galEquipment Failure—Separate Storm Drain
Aug 28, 201550 galGrease / FOG—Unpaved surface
Aug 11, 2015300 galRoot IntrusionYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 4, 201550 galRoot IntrusionYesCombined Storm Drain (Combined CS only)
Jun 9, 201575 galRoot Intrusion—Paved Surface
May 22, 2015500 galRoot IntrusionYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
May 22, 20158 galEquipment Failure—Separate Storm Drain
Mar 15, 201520 galRoot Intrusion—Street/Curb and Gutter
Feb 25, 20151K galRoot Intrusion—Other (specify below)
Feb 2, 201550 galRoot Intrusion—Paved Surface
Jan 30, 2015500 galRoot Intrusion—Separate Storm Drain
Dec 29, 201470 galOther / Unknown—Unpaved surface
Dec 28, 20141 galRoot IntrusionYesPaved Surface;Separate Storm Drain
Dec 24, 201441 galOther / UnknownYesPaved Surface
Dec 22, 201460 galRoot IntrusionYesOther (specify below)
Dec 6, 20141K galEquipment FailureYesDrainage Channel
Nov 18, 20146K galGrease / FOGYesDrainage Channel
Nov 4, 2014500 galRoot Intrusion—Unpaved surface
Oct 29, 201450 galEquipment FailureYesSurface Water
Oct 19, 201440 galEquipment Failure—Paved Surface
Oct 2, 20143 galRoot Intrusion—Unpaved surface
Aug 12, 201415 galEquipment Failure—Street/Curb and Gutter
Aug 5, 201440 galRoot IntrusionYesOther (specify below)
Jul 17, 201450 galRoot IntrusionYesSeparate Storm Drain
May 24, 20145 galRoot Intrusion—Other (specify below)
May 20, 201450 galRoot Intrusion—Other (specify below)
Apr 28, 201480 galEquipment FailureYesDrainage Channel
Apr 25, 2014800 galEquipment Failure—Building or Structure;Other (specify below)
Apr 7, 201430 galRoot Intrusion—Paved Surface
Apr 2, 2014300 galEquipment Failure—Paved Surface
Mar 21, 2014750 galRoot IntrusionYesOther (specify below);Separate storm drain;Street/curb and gutter;Surface water
Mar 20, 2014100 galGrease / FOG—Paved Surface
Feb 10, 20142K galRoot IntrusionYesUnpaved surface
Feb 9, 20146K galRoot IntrusionYesBeach;Combined Storm Drain (Combined CS only)
Feb 2, 2014150 galGrease / FOGYesOther (specify below)
Jan 31, 201410 galEquipment Failure—Paved Surface
Jan 14, 201450 galEquipment Failure—Drainage Channel
Dec 6, 201320 galRoot IntrusionYesPaved Surface
Nov 10, 201320 galRoot Intrusion—Unpaved surface
Nov 9, 2013400 galEquipment FailureYesPaved Surface;Separate Storm Drain;Surface Water
Sep 15, 2013600 galEquipment FailureYesBuilding or Structure;Drainage Channel
Aug 12, 2013800 galEquipment Failure—Other (specify below)
Aug 7, 201325 galOther / Unknown—Other paved surface
Jul 20, 201325 galRoot Intrusion—Street/curb and gutter
Jun 30, 201350 galGrease / FOG—Other paved surface
Jun 26, 2013400 galOther / UnknownYesSurface water
Jun 11, 201310 galRoot Intrusion—Other (specify below)
Apr 4, 201320 galRoot Intrusion—Street/curb and gutter
Feb 17, 201320 galRoot Intrusion—Unpaved surface
Jan 16, 20131K galOther / UnknownYesOther (specify below)
Jan 9, 2013150 galOther / UnknownYesSeparate storm drain
Oct 18, 201275 galRoot Intrusion—Unpaved surface
Sep 19, 20125 galRoot Intrusion—Unpaved surface
Sep 19, 201275 galRoot Intrusion—Other paved surface;Street/curb and gutter;Unpaved surface
Sep 10, 201250 galOther / Unknown—Unpaved surface
Sep 7, 20122 galOther / Unknown—Street/curb and gutter
Aug 17, 2012400 galRoot IntrusionYesCombined storm drain (combined CS only);Street/curb and gutter;Other (specify below)
Aug 16, 201230 galRoot Intrusion—Unpaved surface
Aug 14, 20121 galRoot Intrusion—Unpaved surface
May 10, 2012100 galOther / Unknown—Unpaved surface
Apr 17, 2012500 galRoot IntrusionYesUnpaved surface
Apr 9, 2012150 galRoot Intrusion—Unpaved surface
Apr 1, 201240 galOther / Unknown—Unpaved surface
Apr 1, 2012900 galOther / Unknown—Other (specify below)
Mar 30, 20121K galOther / UnknownYesOther (specify below)
Mar 26, 201250 galOther / UnknownYesSurface water
Mar 21, 201220 galRoot Intrusion—Separate storm drain
Mar 16, 201210 galOther / Unknown—Unpaved surface
Mar 13, 201225 galRoot Intrusion—Building or structure
Feb 19, 2012900 galOther / UnknownYesCombined storm drain (combined CS only)
Feb 15, 2012300 galGrease / FOG—Street/curb and gutter
Jan 26, 201250 galOther / Unknown—Unpaved surface
Jan 19, 20125 galOther / Unknown—Other (specify below)
Dec 31, 20111K galRoot IntrusionYesOther (specify below)
Oct 19, 20112 galOther / Unknown—Other paved surface
Oct 3, 20115 galOther / Unknown—Other (specify below)
Sep 21, 2011500 galRoot Intrusion—Building or structure;Other (specify below)
Aug 6, 201140 galRoot Intrusion—Street/curb and gutter
Jul 17, 201110 galRoot Intrusion—Unpaved surface
Jun 6, 201110 galOther / Unknown—Other paved surface
Apr 27, 201150 galOther / Unknown—Street/curb and gutter
Jan 29, 2011100 galRoot Intrusion—Street/curb and gutter
Nov 7, 2010600 galOther / UnknownYesSurface water
Oct 9, 2010500 galGrease / FOG—Street/curb and gutter
Sep 24, 201020 galOther / Unknown—Other paved surface
Jul 7, 201010K galRoot IntrusionYesSurface water
Jul 6, 201030 galOther / Unknown—Other paved surface
May 23, 201010 galOther / Unknown—Storm drain;Street/curb and gutter
May 16, 201050 galGrease / FOG—Building or structure;Unpaved surface
May 5, 201045 galOther / Unknown—Street/curb and gutter
May 3, 201040 galRoot Intrusion—Unpaved surface
Mar 14, 201040 galRoot Intrusion—Other paved surface;Street/curb and gutter
Feb 21, 201030 galGrease / FOG—Other paved surface
Jan 28, 201020 galEquipment Failure—Unpaved surface
Jan 18, 2010120 galOther / UnknownYesStorm drain;Street/curb and gutter;Surface water
Jan 4, 201025 galRoot Intrusion—Unpaved surface
Nov 23, 200930 galOther / Unknown—Street/curb and gutter
Oct 31, 200950 galOther / Unknown—Unpaved surface
Oct 5, 200925 galOther / Unknown—Storm drain
Jul 28, 200910 galOther / Unknown—Unpaved surface
Jun 25, 200910 galOther / Unknown—Unpaved surface
May 2, 200910 galRoot Intrusion—Unpaved surface
Mar 30, 200940 galGrease / FOG—Unpaved surface
Mar 17, 200925 galOther / Unknown—Unpaved surface
Mar 13, 200950 galOther / Unknown—Other (specify below)
Feb 5, 20095 galGrease / FOG—Street/curb and gutter
Feb 5, 20095 galGrease / FOG—Street/curb and gutter
Jan 14, 200910 galRoot Intrusion—Unpaved surface
Jan 5, 20095 galEquipment Failure—Other paved surface
Dec 17, 200820 galRoot Intrusion—Other paved surface
Dec 16, 2008300 galOther / UnknownYesSurface water
Dec 13, 2008500 galOther / UnknownYesSurface water
Sep 10, 200850 galOther / Unknown—Unpaved surface
Jul 15, 2008200 galRoot IntrusionYesSurface water
Jul 12, 200820 galRoot Intrusion—Unpaved surface
Jun 4, 2008200 galRoot Intrusion—Other paved surface;Storm drain;Street/curb and gutter;Unpaved surface

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