All rankings
California · California (CIWQS)
Corona City DWP
C
Often reaches water
Reported events
114
Total volume
549K gal
Reached waterways
24 (21%)
Reporting since
2007
What caused the overflows
Other / Unknown
44
Grease / FOG
29
Equipment Failure
28
Root Intrusion
12
Capacity Issue
1
Reported overflow events (showing 114 of 114)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Feb 18, 2026 | 200 gal | Equipment Failure | — | — |
| Jan 24, 2025 | 7K gal | Equipment Failure | Yes | Temescal Wash/Creek |
| Feb 27, 2024 | 600 gal | Grease / FOG | — | — |
| Feb 6, 2024 | 193 gal | Other / Unknown | — | — |
| Feb 3, 2024 | 450 gal | Root Intrusion | — | — |
| Oct 6, 2023 | 620 gal | Equipment Failure | — | — |
| Jun 9, 2023 | 925 gal | Root Intrusion | — | — |
| May 2, 2023 | 10 gal | Equipment Failure | — | Paved Surface |
| Apr 26, 2023 | 238 gal | Other / Unknown | — | Paved Surface;Street/Curb and Gutter |
| Mar 11, 2023 | 80 gal | Grease / FOG | — | Street/Curb and Gutter |
| Dec 20, 2022 | 50 gal | Capacity Issue | Yes | Separate Storm Drain |
| Sep 20, 2022 | 10 gal | Grease / FOG | — | Other (specify below);Paved Surface |
| Jun 28, 2022 | 760 gal | Equipment Failure | — | Separate Storm Drain;Street/Curb and Gutter |
| Mar 25, 2022 | 10 gal | Equipment Failure | — | Other (specify below);Paved Surface;Street/Curb and Gutter |
| Jan 23, 2022 | 60 gal | Grease / FOG | — | Paved Surface;Street/Curb and Gutter |
| Oct 23, 2021 | 125 gal | Grease / FOG | — | Street/Curb and Gutter |
| Sep 1, 2021 | 300 gal | Root Intrusion | — | Paved Surface;Street/Curb and Gutter |
| Jul 1, 2021 | 14K gal | Equipment Failure | Yes | Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| May 22, 2021 | 3K gal | Grease / FOG | — | Street/Curb and Gutter;Unpaved surface |
| May 19, 2021 | 2K gal | Grease / FOG | — | Street/Curb and Gutter;Unpaved surface |
| Dec 26, 2020 | 100 gal | Equipment Failure | — | Paved Surface;Street/Curb and Gutter |
| May 13, 2020 | 227 gal | Root Intrusion | — | Street/Curb and Gutter |
| Dec 5, 2019 | 13 gal | Equipment Failure | — | Street/Curb and Gutter |
| Aug 20, 2019 | 3 gal | Other / Unknown | — | Paved Surface |
| Jul 17, 2019 | 900 gal | Equipment Failure | — | Street/Curb and Gutter |
| May 22, 2019 | 10 gal | Other / Unknown | — | Paved Surface |
| Apr 19, 2019 | 100 gal | Root Intrusion | — | Paved Surface;Street/Curb and Gutter |
| Mar 24, 2019 | 500 gal | Equipment Failure | — | Paved Surface;Street/Curb and Gutter |
| Feb 25, 2019 | 40 gal | Other / Unknown | — | Other (specify below);Unpaved surface |
| Jan 24, 2019 | 100 gal | Equipment Failure | — | Street/Curb and Gutter;Unpaved surface |
| Oct 21, 2018 | 1K gal | Equipment Failure | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Oct 19, 2018 | 20 gal | Other / Unknown | — | Paved Surface;Street/Curb and Gutter;Unpaved surface |
| Aug 31, 2018 | 610 gal | Grease / FOG | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Aug 14, 2018 | 2K gal | Grease / FOG | Yes | Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Aug 11, 2018 | 5K gal | Root Intrusion | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Dec 27, 2017 | 10K gal | Equipment Failure | — | Other (specify below) |
| Nov 30, 2017 | 6K gal | Other / Unknown | Yes | Drainage Channel |
| Nov 22, 2017 | 450 gal | Equipment Failure | — | Paved Surface;Street/Curb and Gutter |
| Nov 7, 2017 | 20 gal | Equipment Failure | Yes | Drainage Channel;Paved Surface;Separate Storm Drain |
| Oct 20, 2017 | 100 gal | Equipment Failure | — | Paved Surface;Street/Curb and Gutter |
| Feb 14, 2017 | 50 gal | Equipment Failure | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Feb 26, 2016 | 2K gal | Equipment Failure | Yes | Drainage Channel |
| Jan 8, 2016 | 300 gal | Equipment Failure | Yes | Drainage Channel;Separate Storm Drain |
| Jul 31, 2015 | 50 gal | Grease / FOG | — | Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| May 26, 2015 | 500 gal | Grease / FOG | — | Street/Curb and Gutter |
| Mar 3, 2015 | 33K gal | Other / Unknown | Yes | Drainage Channel |
| Feb 1, 2015 | 2K gal | Other / Unknown | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| May 6, 2014 | 250 gal | Grease / FOG | — | Paved Surface;Street/Curb and Gutter |
| Mar 2, 2014 | 23K gal | Other / Unknown | Yes | Drainage Channel;Paved Surface;Street/Curb and Gutter |
| Dec 16, 2013 | 880 gal | Grease / FOG | — | Paved Surface;Street/Curb and Gutter |
| Nov 18, 2013 | 9K gal | Other / Unknown | — | Paved Surface;Street/Curb and Gutter |
| Jan 10, 2013 | 2K gal | Grease / FOG | Yes | Street/curb and gutter;Surface water;Other (specify below) |
| Nov 29, 2012 | 200 gal | Equipment Failure | — | Other (specify below) |
| Nov 24, 2012 | 14K gal | Grease / FOG | Yes | Combined storm drain (combined CS only);Street/curb and gutter;Surface water |
| Nov 4, 2012 | 4K gal | Grease / FOG | Yes | Combined storm drain (combined CS only);Other (specify below) |
| Jul 30, 2012 | 150 gal | Other / Unknown | — | Street/curb and gutter;Other (specify below) |
| Jun 28, 2012 | 100 gal | Other / Unknown | — | Other paved surface;Street/curb and gutter |
| Jun 12, 2012 | 250 gal | Other / Unknown | — | Other (specify below) |
| Jan 29, 2012 | 1K gal | Other / Unknown | — | Unpaved surface;Other (specify below) |
| Jan 19, 2012 | 950 gal | Other / Unknown | — | Other (specify below) |
| Dec 26, 2011 | 5 gal | Grease / FOG | — | Street/curb and gutter |
| Sep 7, 2011 | 50 gal | Other / Unknown | — | Street/curb and gutter |
| Mar 24, 2011 | 700 gal | Grease / FOG | — | Other paved surface;Street/curb and gutter |
| Dec 23, 2010 | 5K gal | Root Intrusion | — | Other (specify below) |
| Aug 2, 2010 | 1K gal | Grease / FOG | Yes | Separate storm drain;Street/curb and gutter |
| Jun 6, 2010 | 172 gal | Grease / FOG | — | Separate storm drain;Street/curb and gutter |
| May 16, 2010 | 720 gal | Root Intrusion | — | Other (specify below) |
| Apr 26, 2010 | 400 gal | Other / Unknown | — | Other (specify below) |
| Apr 1, 2010 | 268 gal | Grease / FOG | — | Other paved surface;Separate storm drain;Street/curb and gutter |
| Mar 24, 2010 | 975 gal | Root Intrusion | — | Other (specify below) |
| Oct 12, 2009 | 560 gal | Other / Unknown | Yes | Storm drain;Street/curb and gutter;Surface water |
| Jul 29, 2009 | 140 gal | Other / Unknown | — | Other paved surface |
| Jun 23, 2009 | 1K gal | Grease / FOG | Yes | Other paved surface;Separate storm drain;Street/curb and gutter |
| Jun 10, 2009 | 1K gal | Grease / FOG | — | Other paved surface;Storm drain;Street/curb and gutter |
| May 31, 2009 | 950 gal | Other / Unknown | Yes | Storm drain;Street/curb and gutter;Surface water |
| Feb 20, 2009 | 200 gal | Grease / FOG | — | Separate storm drain;Street/curb and gutter |
| Jan 7, 2009 | 300 gal | Other / Unknown | — | Unpaved surface |
| Dec 22, 2008 | 15 gal | Other / Unknown | — | Building or structure |
| Dec 22, 2008 | 20 gal | Other / Unknown | — | Building or structure |
| Dec 9, 2008 | 50 gal | Other / Unknown | — | Building or structure |
| Sep 17, 2008 | 4K gal | Other / Unknown | — | Other paved surface;Storm drain |
| Aug 9, 2008 | 250 gal | Other / Unknown | — | Other (specify below) |
| Jun 15, 2008 | 15 gal | Root Intrusion | — | Building or structure |
| Jun 2, 2008 | 3K gal | Other / Unknown | — | Other (specify below) |
| May 8, 2008 | 200 gal | Other / Unknown | Yes | Unpaved surface;Other (specify below) |
| May 1, 2008 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Apr 27, 2008 | 4K gal | Other / Unknown | Yes | Separate storm drain;Street/curb and gutter |
| Apr 25, 2008 | 10 gal | Equipment Failure | — | Other paved surface |
| Mar 8, 2008 | 25K gal | Equipment Failure | — | Unpaved surface |
| Jan 28, 2008 | 200 gal | Equipment Failure | — | Building or structure;Other paved surface;Street/curb and gutter |
| Jan 25, 2008 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Jan 24, 2008 | 150 gal | Grease / FOG | — | Building or structure |
| Jan 12, 2008 | 3K gal | Other / Unknown | — | Separate storm drain;Street/curb and gutter;Unpaved surface |
| Dec 28, 2007 | 200 gal | Other / Unknown | — | Street/curb and gutter |
| Oct 21, 2007 | 560 gal | Other / Unknown | — | Other paved surface;Street/curb and gutter;Other (specify below) |
| Oct 14, 2007 | 805 gal | Grease / FOG | Yes | Other paved surface;Storm drain;Street/curb and gutter;Surface water |
| Oct 10, 2007 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Sep 24, 2007 | 800 gal | Grease / FOG | Yes | Storm drain;Street/curb and gutter;Surface water |
| Sep 23, 2007 | 600 gal | Other / Unknown | — | Street/curb and gutter |
| Aug 30, 2007 | 36 gal | Equipment Failure | — | Other paved surface |
| Aug 6, 2007 | 50 gal | Other / Unknown | — | Unpaved surface |
| Jun 13, 2007 | 10K gal | Root Intrusion | — | Separate storm drain;Street/curb and gutter |
| Jun 5, 2007 | 86K gal | Other / Unknown | — | Other (specify below) |
| May 28, 2007 | 240K gal | Other / Unknown | Yes | Other (specify below) |
| Apr 22, 2007 | 158 gal | Other / Unknown | — | Street/curb and gutter |
| Apr 21, 2007 | 105 gal | Other / Unknown | — | Street/curb and gutter |
| Mar 27, 2007 | 1K gal | Grease / FOG | — | Separate storm drain;Street/curb and gutter |
| Mar 10, 2007 | 1K gal | Equipment Failure | Yes | Street/curb and gutter;Surface water |
| Feb 10, 2007 | 584 gal | Root Intrusion | — | Other (specify below) |
| Feb 9, 2007 | 840 gal | Equipment Failure | — | Other paved surface;Other (specify below) |
| Feb 4, 2007 | 300 gal | Equipment Failure | — | Street/curb and gutter |
| Feb 3, 2007 | 24 gal | Other / Unknown | — | Other paved surface |
| Feb 2, 2007 | 700 gal | Grease / FOG | — | Street/curb and gutter |
| Jan 9, 2007 | 3K gal | Other / Unknown | Yes | Surface water;Other (specify below) |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.