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California · California (CIWQS)
City of Oceanside
D
Frequently reaches water
Reported events
107
Total volume
7.8M gal
Reached waterways
48 (45%)
Reporting since
2007
What caused the overflows
Grease / FOG
32
Root Intrusion
27
Other / Unknown
27
Equipment Failure
18
Capacity Issue
2
Rainfall / Flooding
1
Reported overflow events (showing 107 of 107)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Aug 20, 2025 | 600 gal | Root Intrusion | — | — |
| Aug 6, 2025 | 350 gal | Grease / FOG | — | — |
| Jul 14, 2025 | 260 gal | Equipment Failure | — | Loma Alta |
| Apr 23, 2025 | 100 gal | Other / Unknown | — | — |
| Nov 6, 2024 | 600 gal | Grease / FOG | — | — |
| Jan 22, 2024 | 5K gal | Capacity Issue | — | — |
| Jan 4, 2024 | 6K gal | Grease / FOG | Yes | Pilgrim Creek |
| Mar 2, 2023 | 325 gal | Root Intrusion | — | Drainage Channel |
| Oct 30, 2022 | 180 gal | Root Intrusion | — | Unpaved surface |
| Apr 5, 2022 | 3K gal | Equipment Failure | — | Other (specify below) |
| Mar 17, 2022 | 6K gal | Equipment Failure | Yes | Separate Storm Drain;Surface Water |
| Nov 20, 2021 | 14K gal | Equipment Failure | Yes | Other (specify below) |
| Nov 7, 2021 | 448 gal | Other / Unknown | Yes | Other (specify below) |
| Jul 3, 2021 | 30K gal | Equipment Failure | — | Surface Water;Unpaved surface |
| Jul 3, 2021 | 504 gal | Grease / FOG | Yes | Drainage Channel;Unpaved surface |
| Apr 12, 2021 | 155 gal | Equipment Failure | Yes | Other (specify below);Paved Surface;Street/Curb and Gutter |
| Apr 10, 2020 | 1.2M gal | Other / Unknown | Yes | Beach |
| Apr 10, 2020 | 38K gal | Capacity Issue | Yes | Beach |
| Oct 6, 2019 | 300 gal | Grease / FOG | Yes | Separate Storm Drain |
| Sep 15, 2019 | 335 gal | Root Intrusion | Yes | Separate Storm Drain |
| May 4, 2019 | 750 gal | Other / Unknown | Yes | Surface Water |
| Feb 14, 2019 | 8K gal | Other / Unknown | Yes | Beach |
| Dec 23, 2018 | 990 gal | Grease / FOG | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Oct 13, 2018 | 49K gal | Equipment Failure | Yes | Surface Water |
| Aug 16, 2018 | 294 gal | Root Intrusion | — | Separate Storm Drain |
| Jul 3, 2018 | 200 gal | Root Intrusion | — | Other (specify below) |
| Apr 17, 2018 | 120 gal | Other / Unknown | Yes | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Apr 12, 2018 | 100 gal | Equipment Failure | — | Separate Storm Drain |
| Nov 15, 2017 | 195 gal | Root Intrusion | Yes | Separate Storm Drain |
| Oct 17, 2017 | 250 gal | Grease / FOG | Yes | Drainage Channel |
| Oct 10, 2017 | 4K gal | Equipment Failure | — | Other (specify below) |
| Sep 8, 2017 | 500 gal | Grease / FOG | — | Drainage Channel |
| Jul 14, 2017 | 21K gal | Root Intrusion | — | Unpaved surface |
| Apr 7, 2017 | 150 gal | Grease / FOG | — | Paved Surface |
| Jan 16, 2017 | 100 gal | Root Intrusion | — | Separate Storm Drain;Unpaved surface |
| Nov 20, 2016 | 600 gal | Root Intrusion | — | Unpaved surface |
| Jan 6, 2016 | 4K gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Dec 15, 2015 | 850 gal | Grease / FOG | — | Unpaved surface |
| Nov 16, 2015 | 6K gal | Equipment Failure | Yes | Other (specify below);Unpaved surface |
| Jul 3, 2015 | 200 gal | Grease / FOG | Yes | Surface Water |
| Jun 15, 2015 | 540K gal | Other / Unknown | Yes | Surface Water |
| Feb 27, 2015 | 1K gal | Grease / FOG | — | Unpaved surface |
| Jan 20, 2015 | 245 gal | Root Intrusion | — | Other (specify below) |
| Sep 30, 2014 | 625 gal | Root Intrusion | — | Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Jul 27, 2014 | 165 gal | Root Intrusion | — | Drainage Channel;Other (specify below);Unpaved surface |
| Jul 25, 2014 | 500 gal | Root Intrusion | — | Drainage Channel;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Apr 26, 2014 | 375 gal | Grease / FOG | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Feb 17, 2014 | 6K gal | Other / Unknown | Yes | Separate Storm Drain;Surface Water |
| Dec 21, 2013 | 150 gal | Root Intrusion | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Dec 11, 2013 | 625 gal | Grease / FOG | Yes | Separate Storm Drain |
| Nov 25, 2013 | 11K gal | Equipment Failure | Yes | Other (specify below) |
| Aug 22, 2013 | 300 gal | Root Intrusion | — | Building or Structure |
| Mar 16, 2013 | 1K gal | Grease / FOG | — | Building or structure;Unpaved surface;Other (specify below) |
| Feb 25, 2013 | 5K gal | Grease / FOG | Yes | Surface water |
| Feb 16, 2013 | 13K gal | Equipment Failure | Yes | Separate storm drain;Street/curb and gutter;Unpaved surface;Other (specify below) |
| Dec 7, 2012 | 2K gal | Grease / FOG | Yes | Surface water;Other (specify below) |
| Nov 13, 2012 | 885 gal | Equipment Failure | Yes | Surface water |
| Oct 18, 2012 | 720 gal | Equipment Failure | — | Unpaved surface |
| Aug 27, 2012 | 300 gal | Other / Unknown | Yes | Separate storm drain |
| Aug 26, 2012 | 300 gal | Root Intrusion | Yes | Separate storm drain |
| Aug 19, 2012 | 64 gal | Root Intrusion | — | Other (specify below) |
| Jul 14, 2012 | 900 gal | Other / Unknown | Yes | Other (specify below) |
| Jul 4, 2012 | 750 gal | Grease / FOG | Yes | Unpaved surface;Other (specify below) |
| Jun 21, 2012 | 182 gal | Grease / FOG | — | Other (specify below) |
| Jun 6, 2012 | 530 gal | Other / Unknown | Yes | Other (specify below) |
| Mar 19, 2012 | 123 gal | Grease / FOG | — | Other (specify below) |
| Feb 22, 2012 | 2K gal | Grease / FOG | Yes | Other (specify below) |
| Sep 30, 2011 | 225 gal | Grease / FOG | — | Unpaved surface;Other (specify below) |
| Sep 4, 2011 | 245 gal | Equipment Failure | — | Unpaved surface |
| Aug 10, 2011 | 4K gal | Grease / FOG | Yes | Other (specify below) |
| Apr 16, 2011 | 450 gal | Grease / FOG | — | Unpaved surface;Other (specify below) |
| Jan 14, 2011 | 20K gal | Equipment Failure | Yes | Surface water |
| Dec 23, 2010 | 5.5M gal | Equipment Failure | Yes | Beach;Surface water;Other (specify below) |
| Dec 22, 2010 | 40K gal | Other / Unknown | — | Other (specify below) |
| Feb 20, 2010 | 625 gal | Grease / FOG | Yes | Storm drain;Other (specify below) |
| Jan 26, 2010 | 50 gal | Other / Unknown | — | Storm drain |
| Jan 21, 2010 | 23K gal | Rainfall / Flooding | — | Unpaved surface;Other (specify below) |
| Dec 12, 2009 | 240 gal | Root Intrusion | Yes | Storm drain;Surface water |
| Dec 10, 2009 | 150 gal | Root Intrusion | — | Storm drain |
| Sep 3, 2009 | 600 gal | Other / Unknown | Yes | Surface water |
| Jun 15, 2009 | 440 gal | Root Intrusion | — | Other (specify below) |
| Apr 6, 2009 | 280 gal | Other / Unknown | — | Other (specify below) |
| Feb 25, 2009 | 1K gal | Grease / FOG | Yes | Other (specify below) |
| Feb 1, 2009 | 532 gal | Root Intrusion | — | Other (specify below) |
| Jan 24, 2009 | 25K gal | Other / Unknown | — | Other (specify below) |
| Oct 26, 2008 | 200 gal | Other / Unknown | — | Separate storm drain;Other (specify below) |
| Aug 6, 2008 | 135 gal | Other / Unknown | — | Other (specify below) |
| Jun 12, 2008 | 300 gal | Other / Unknown | — | Separate storm drain |
| Mar 26, 2008 | 450 gal | Other / Unknown | — | Other (specify below) |
| Feb 2, 2008 | 105K gal | Equipment Failure | Yes | Beach;Surface water;Other (specify below) |
| Jan 8, 2008 | 720 gal | Root Intrusion | — | Separate storm drain;Other (specify below) |
| Dec 3, 2007 | 500 gal | Grease / FOG | — | Building or structure;Other paved surface;Separate storm drain;Street/curb and gutter |
| Nov 4, 2007 | 335 gal | Grease / FOG | Yes | Surface water |
| Oct 23, 2007 | 550 gal | Other / Unknown | — | Other (specify below) |
| Oct 18, 2007 | 100 gal | Root Intrusion | — | Other (specify below) |
| Sep 23, 2007 | 30 gal | Root Intrusion | — | Separate storm drain;Street/curb and gutter |
| Aug 28, 2007 | 61 gal | Root Intrusion | — | Separate storm drain;Street/curb and gutter |
| Aug 21, 2007 | 420 gal | Grease / FOG | Yes | Surface water;Unpaved surface |
| Jul 18, 2007 | 100 gal | Grease / FOG | — | Other (specify below) |
| Jun 22, 2007 | 2K gal | Grease / FOG | — | Separate storm drain |
| Jun 20, 2007 | 17K gal | Other / Unknown | Yes | Surface water |
| Jun 6, 2007 | 34K gal | Other / Unknown | Yes | Street/curb and gutter;Surface water |
| Apr 22, 2007 | 800 gal | Other / Unknown | — | Other (specify below) |
| Apr 15, 2007 | 480 gal | Other / Unknown | — | Other (specify below) |
| Mar 31, 2007 | 290 gal | Root Intrusion | — | Storm drain |
| Mar 3, 2007 | 600 gal | Grease / FOG | Yes | Other (specify below) |
| Jan 7, 2007 | 28K gal | Other / Unknown | Yes | Storm drain;Unpaved surface |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.