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California · California (CIWQS)
Palos Verdes Estates City
D
Frequently reaches water
Reported events
132
Total volume
214K gal
Reached waterways
50 (38%)
Reporting since
2007
What caused the overflows
Root Intrusion
81
Other / Unknown
49
Grease / FOG
1
Equipment Failure
1
Reported overflow events (showing 132 of 132)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Apr 18, 2026 | 300 gal | Root Intrusion | — | — |
| Mar 15, 2026 | 900 gal | Root Intrusion | Yes | Manhattan Beach-Frontal Santa Monica Bay Watershed |
| Dec 23, 2025 | 300 gal | Root Intrusion | — | — |
| Dec 2, 2025 | 4K gal | Root Intrusion | — | — |
| Nov 13, 2025 | 200 gal | Root Intrusion | Yes | Natural streams, minor channels, and unknown drains within the Manhattan Beach-Frontal Santa Monica Bay watershed. |
| Jul 28, 2025 | 150 gal | Root Intrusion | — | — |
| Jul 28, 2025 | 100 gal | Root Intrusion | — | — |
| Nov 2, 2024 | 300 gal | Root Intrusion | — | — |
| Jul 8, 2024 | 300 gal | Equipment Failure | — | — |
| Oct 25, 2023 | 300 gal | Root Intrusion | Yes | Agua Amarga Canyon, Santa Monica Bay. |
| Oct 23, 2023 | 450 gal | Root Intrusion | — | — |
| Aug 10, 2023 | 50 gal | Root Intrusion | — | — |
| May 7, 2023 | 10 gal | Root Intrusion | — | Other (specify below);Unpaved surface |
| May 2, 2023 | 2K gal | Other / Unknown | Yes | Drainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter |
| Feb 2, 2023 | 300 gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain;Street/Curb and Gutter |
| Nov 27, 2022 | 23K gal | Other / Unknown | Yes | Drainage Channel;Other (specify below);Paved Surface;Street/Curb and Gutter;Unpaved surface |
| Nov 6, 2022 | 500 gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Oct 15, 2022 | 50 gal | Other / Unknown | — | Other (specify below) |
| Jan 23, 2022 | 100 gal | Other / Unknown | — | Other (specify below) |
| Aug 10, 2021 | 500 gal | Other / Unknown | — | Other (specify below) |
| Jul 14, 2020 | 275 gal | Other / Unknown | Yes | Drainage Channel;Other (specify below);Separate Storm Drain;Street/Curb and Gutter |
| Jun 25, 2020 | 50 gal | Other / Unknown | — | Other (specify below) |
| May 27, 2020 | 2K gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain;Street/Curb and Gutter |
| Apr 2, 2020 | 300 gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Mar 25, 2020 | 100 gal | Other / Unknown | — | Other (specify below) |
| Mar 21, 2020 | 300 gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Dec 31, 2019 | 300 gal | Other / Unknown | — | Building or Structure;Other (specify below) |
| Oct 20, 2019 | 10 gal | Other / Unknown | — | Other (specify below) |
| May 31, 2019 | 750 gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain |
| May 26, 2019 | 48K gal | Other / Unknown | — | Other (specify below);Separate Storm Drain;Unpaved surface |
| Apr 30, 2019 | 2K gal | Other / Unknown | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Dec 24, 2018 | 130 gal | Other / Unknown | — | Other (specify below) |
| Nov 17, 2018 | 600 gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain;Street/Curb and Gutter |
| Jul 26, 2018 | 100 gal | Other / Unknown | — | Other (specify below);Separate Storm Drain |
| Feb 14, 2018 | 4K gal | Other / Unknown | — | Other (specify below);Separate Storm Drain |
| Jan 22, 2018 | 10K gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain |
| Oct 24, 2017 | 1K gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| May 22, 2017 | 600 gal | Other / Unknown | — | Other (specify below) |
| Mar 18, 2017 | 900 gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain |
| Feb 5, 2017 | 100 gal | Grease / FOG | — | Other (specify below) |
| Feb 1, 2017 | 750 gal | Root Intrusion | — | Other (specify below);Separate Storm Drain |
| Jan 27, 2017 | 35 gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Jan 23, 2017 | 3K gal | Other / Unknown | — | Other (specify below) |
| Aug 17, 2016 | 380 gal | Other / Unknown | — | Building or Structure;Other (specify below) |
| Aug 7, 2016 | 14K gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Mar 8, 2016 | 20 gal | Root Intrusion | Yes | Other (specify below);Separate Storm Drain |
| Mar 1, 2016 | 200 gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Feb 28, 2016 | 50 gal | Other / Unknown | — | Other (specify below);Paved Surface |
| Nov 23, 2015 | 50 gal | Other / Unknown | Yes | Other (specify below);Separate Storm Drain |
| Oct 31, 2015 | 3K gal | Other / Unknown | — | Unpaved surface |
| Jun 26, 2015 | 3K gal | Root Intrusion | Yes | Drainage Channel;Separate Storm Drain;Street/Curb and Gutter;Surface Water |
| Mar 23, 2015 | 2K gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Dec 16, 2014 | 100 gal | Root Intrusion | — | Building or Structure |
| Dec 13, 2014 | 4K gal | Root Intrusion | Yes | Other (specify below);Separate Storm Drain;Street/Curb and Gutter |
| Nov 18, 2014 | 500 gal | Root Intrusion | — | Other (specify below) |
| Aug 14, 2014 | 60 gal | Other / Unknown | — | Building or Structure;Other (specify below) |
| Apr 30, 2014 | 20 gal | Root Intrusion | — | Other (specify below) |
| Apr 17, 2014 | 300 gal | Root Intrusion | Yes | Separate Storm Drain;Surface Water |
| Mar 16, 2014 | 10 gal | Root Intrusion | — | Unpaved surface |
| Mar 6, 2014 | 50 gal | Root Intrusion | — | Other (specify below) |
| Jan 18, 2014 | 22K gal | Root Intrusion | Yes | Other (specify below);Separate Storm Drain |
| Nov 10, 2013 | 2K gal | Root Intrusion | Yes | Other (specify below);Separate Storm Drain |
| Oct 5, 2013 | 2K gal | Root Intrusion | Yes | Other (specify below);Separate Storm Drain |
| Jul 20, 2013 | 21K gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Jul 19, 2013 | 250 gal | Root Intrusion | — | Unpaved surface;Other (specify below) |
| Jul 6, 2013 | 100 gal | Other / Unknown | — | Other (specify below) |
| Jun 27, 2013 | 100 gal | Other / Unknown | — | Unpaved surface;Other (specify below) |
| Jun 4, 2013 | 100 gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Apr 9, 2013 | 200 gal | Root Intrusion | — | Building or structure;Other (specify below) |
| Mar 5, 2013 | 200 gal | Root Intrusion | — | Other (specify below) |
| Jan 16, 2013 | 15 gal | Root Intrusion | — | Other (specify below) |
| Jan 12, 2013 | 60 gal | Root Intrusion | — | Other (specify below) |
| Dec 26, 2012 | 300 gal | Other / Unknown | — | Other (specify below) |
| Dec 21, 2012 | 500 gal | Root Intrusion | Yes | Combined storm drain (combined CS only) |
| Dec 8, 2012 | 150 gal | Root Intrusion | — | Street/curb and gutter |
| Nov 16, 2012 | 30 gal | Root Intrusion | — | Other (specify below) |
| Sep 12, 2012 | 900 gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Jun 17, 2012 | 150 gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Jun 3, 2012 | 15 gal | Other / Unknown | — | Unpaved surface;Other (specify below) |
| May 24, 2012 | 100 gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Apr 5, 2012 | 500 gal | Root Intrusion | — | Unpaved surface;Other (specify below) |
| Mar 18, 2012 | 12K gal | Other / Unknown | Yes | Separate storm drain;Other (specify below) |
| Mar 4, 2012 | 3K gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Feb 22, 2012 | 150 gal | Root Intrusion | — | Unpaved surface;Other (specify below) |
| Jan 8, 2012 | 900 gal | Root Intrusion | Yes | Separate storm drain;Other (specify below) |
| Oct 26, 2011 | 460 gal | Other / Unknown | Yes | Other (specify below) |
| Oct 14, 2011 | 5 gal | Root Intrusion | — | Other (specify below) |
| Aug 29, 2011 | 300 gal | Root Intrusion | Yes | Separate storm drain;Unpaved surface;Other (specify below) |
| Feb 11, 2011 | 800 gal | Root Intrusion | — | Other (specify below) |
| Nov 17, 2010 | 400 gal | Root Intrusion | Yes | Other (specify below) |
| Sep 12, 2010 | 800 gal | Root Intrusion | Yes | Storm drain;Other (specify below) |
| Apr 27, 2010 | 50 gal | Root Intrusion | — | Other (specify below) |
| Feb 9, 2010 | 200 gal | Root Intrusion | Yes | Other (specify below) |
| Oct 23, 2009 | 200 gal | Root Intrusion | Yes | Storm drain;Other (specify below) |
| May 20, 2009 | 500 gal | Root Intrusion | — | Street/curb and gutter |
| Mar 26, 2009 | 50 gal | Root Intrusion | — | Other (specify below) |
| Dec 16, 2008 | 200 gal | Root Intrusion | Yes | Other (specify below) |
| Aug 24, 2008 | 800 gal | Root Intrusion | Yes | Other (specify below) |
| Jul 19, 2008 | 200 gal | Root Intrusion | Yes | Storm drain;Other (specify below) |
| Jun 15, 2008 | 50 gal | Other / Unknown | — | Other (specify below) |
| Jun 4, 2008 | 50 gal | Other / Unknown | — | Other (specify below) |
| Mar 19, 2008 | 500 gal | Other / Unknown | Yes | Storm drain |
| Feb 15, 2008 | 200 gal | Root Intrusion | — | Other (specify below) |
| Jan 5, 2008 | 800 gal | Root Intrusion | Yes | Storm drain |
| Jan 5, 2008 | 50 gal | Root Intrusion | — | Other (specify below) |
| Nov 25, 2007 | 200 gal | Root Intrusion | Yes | Other (specify below) |
| Oct 27, 2007 | 75 gal | Root Intrusion | — | Other (specify below) |
| Sep 30, 2007 | 200 gal | Root Intrusion | Yes | Storm drain |
| Sep 30, 2007 | 50 gal | Root Intrusion | — | Other (specify below) |
| Sep 5, 2007 | 600 gal | Root Intrusion | Yes | Storm drain |
| Sep 4, 2007 | 100 gal | Root Intrusion | — | Other (specify below) |
| Sep 2, 2007 | 100 gal | Root Intrusion | — | Other (specify below) |
| Aug 19, 2007 | 250 gal | Root Intrusion | Yes | Storm drain |
| Jul 13, 2007 | 300 gal | Root Intrusion | Yes | Surface water |
| Jul 7, 2007 | 200 gal | Root Intrusion | Yes | Other (specify below) |
| Jun 2, 2007 | 150 gal | Root Intrusion | — | Other (specify below) |
| Jun 2, 2007 | 50 gal | Root Intrusion | — | Other (specify below) |
| Jun 2, 2007 | 800 gal | Root Intrusion | — | Other (specify below) |
| May 17, 2007 | 300 gal | Root Intrusion | Yes | Other (specify below) |
| May 13, 2007 | 10 gal | Root Intrusion | — | Other (specify below) |
| May 13, 2007 | 20 gal | Root Intrusion | — | Other (specify below) |
| May 12, 2007 | 200 gal | Root Intrusion | — | Other (specify below) |
| May 11, 2007 | 300 gal | Root Intrusion | — | Other (specify below) |
| May 4, 2007 | 400 gal | Other / Unknown | — | Other (specify below) |
| May 4, 2007 | 200 gal | Other / Unknown | — | Other (specify below) |
| Mar 26, 2007 | 200 gal | Root Intrusion | — | Other (specify below) |
| Feb 19, 2007 | 30 gal | Root Intrusion | — | Other (specify below) |
| Feb 1, 2007 | 200 gal | Other / Unknown | — | Other (specify below) |
| Jan 29, 2007 | 100 gal | Root Intrusion | — | Other (specify below) |
| Jan 28, 2007 | 30 gal | Root Intrusion | — | Other (specify below) |
| Jan 22, 2007 | 100 gal | Root Intrusion | — | Other (specify below) |
| Jan 12, 2007 | 700 gal | Other / Unknown | Yes | Storm drain |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.