All rankings
California · California (CIWQS)
San Bernardino City Municipal Water Dept
C
Often reaches water
Reported events
253
Total volume
706K gal
Reached waterways
60 (24%)
Reporting since
2007
What caused the overflows
Grease / FOG
109
Equipment Failure
63
Other / Unknown
54
Root Intrusion
27
Reported overflow events (showing 200 of 253)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Feb 10, 2026 | 856 gal | Grease / FOG | — | — |
| May 26, 2025 | 791 gal | Equipment Failure | — | — |
| Jan 21, 2025 | 50 gal | Equipment Failure | — | — |
| May 24, 2024 | 935 gal | Grease / FOG | — | — |
| Jan 25, 2023 | 875 gal | Equipment Failure | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Jul 11, 2022 | 200 gal | Equipment Failure | — | Street/Curb and Gutter;Unpaved surface |
| Jun 18, 2022 | 4K gal | Equipment Failure | — | Drainage Channel;Paved Surface |
| Mar 29, 2022 | 200 gal | Grease / FOG | — | Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Mar 15, 2022 | 50 gal | Equipment Failure | — | Paved Surface |
| Feb 2, 2022 | 800 gal | Grease / FOG | — | Drainage Channel;Paved Surface;Street/Curb and Gutter |
| Jan 5, 2022 | 367 gal | Equipment Failure | — | Unpaved surface |
| Nov 18, 2021 | 140 gal | Other / Unknown | — | Street/Curb and Gutter;Unpaved surface |
| Sep 20, 2021 | 156 gal | Equipment Failure | Yes | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Sep 8, 2021 | 29K gal | Other / Unknown | — | Drainage Channel;Paved Surface;Street/Curb and Gutter;Unpaved surface |
| Sep 7, 2021 | 7K gal | Other / Unknown | — | Drainage Channel;Paved Surface;Street/Curb and Gutter;Unpaved surface |
| Mar 15, 2021 | 6K gal | Grease / FOG | Yes | Other (specify below) |
| Nov 18, 2020 | 500 gal | Equipment Failure | — | Other (specify below) |
| Oct 6, 2020 | 825 gal | Equipment Failure | Yes | Separate Storm Drain |
| Sep 30, 2020 | 75 gal | Equipment Failure | — | Other (specify below) |
| Jul 7, 2020 | 50 gal | Other / Unknown | — | Other (specify below) |
| May 27, 2020 | 20 gal | Other / Unknown | — | Unpaved surface |
| Apr 22, 2020 | 100 gal | Other / Unknown | — | Other (specify below) |
| Feb 15, 2020 | 1K gal | Equipment Failure | Yes | Separate Storm Drain |
| Dec 31, 2019 | 200 gal | Equipment Failure | — | Other (specify below) |
| Oct 21, 2019 | 530 gal | Equipment Failure | — | Other (specify below) |
| Sep 21, 2019 | 12K gal | Equipment Failure | Yes | Other (specify below) |
| Sep 21, 2019 | 15 gal | Equipment Failure | — | Unpaved surface |
| Aug 13, 2019 | 150 gal | Grease / FOG | — | Other (specify below) |
| Jun 24, 2019 | 96 gal | Grease / FOG | Yes | Other (specify below) |
| Jun 9, 2019 | 30 gal | Root Intrusion | — | Other (specify below) |
| Apr 19, 2019 | 254 gal | Equipment Failure | — | Other (specify below) |
| Apr 18, 2019 | 9K gal | Other / Unknown | — | Other (specify below) |
| Mar 13, 2019 | 50 gal | Grease / FOG | — | Other (specify below) |
| Feb 16, 2019 | 244 gal | Root Intrusion | — | Other (specify below) |
| Jan 9, 2019 | 66K gal | Equipment Failure | Yes | Drainage Channel;Separate Storm Drain |
| Dec 31, 2018 | 684 gal | Root Intrusion | — | Street/Curb and Gutter |
| Dec 12, 2018 | 275K gal | Other / Unknown | Yes | Drainage Channel;Unpaved surface |
| Nov 24, 2018 | 954 gal | Grease / FOG | — | Paved Surface;Street/Curb and Gutter |
| Nov 15, 2018 | 2K gal | Equipment Failure | Yes | Drainage Channel;Street/Curb and Gutter |
| Sep 27, 2018 | 2K gal | Other / Unknown | — | Street/Curb and Gutter |
| Aug 14, 2018 | 49 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jul 26, 2018 | 2K gal | Other / Unknown | — | Drainage Channel |
| Jul 7, 2018 | 910 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jun 2, 2018 | 7K gal | Equipment Failure | — | Other (specify below) |
| May 9, 2018 | 390 gal | Equipment Failure | — | Paved Surface;Street/Curb and Gutter |
| Apr 2, 2018 | 10K gal | Equipment Failure | — | Other (specify below) |
| Mar 30, 2018 | 96 gal | Equipment Failure | — | Paved Surface |
| Mar 30, 2018 | 215 gal | Equipment Failure | — | Other (specify below) |
| Feb 14, 2018 | 746 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jan 26, 2018 | 10 gal | Root Intrusion | — | Paved Surface |
| Jan 20, 2018 | 60 gal | Root Intrusion | — | Unpaved surface |
| Jan 5, 2018 | 65 gal | Grease / FOG | Yes | Drainage Channel;Street/Curb and Gutter |
| Dec 17, 2017 | 8K gal | Root Intrusion | Yes | Drainage Channel |
| Dec 2, 2017 | 100 gal | Root Intrusion | — | Street/Curb and Gutter |
| Nov 14, 2017 | 507 gal | Grease / FOG | — | Paved Surface;Street/Curb and Gutter |
| Oct 15, 2017 | 456 gal | Other / Unknown | — | Paved Surface |
| Oct 12, 2017 | 26 gal | Grease / FOG | — | Street/Curb and Gutter |
| Oct 2, 2017 | 72 gal | Grease / FOG | — | Other (specify below) |
| Aug 7, 2017 | 20 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jul 17, 2017 | 8K gal | Equipment Failure | — | Unpaved surface |
| Jul 2, 2017 | 5K gal | Equipment Failure | — | Other (specify below) |
| Jun 18, 2017 | 936 gal | Grease / FOG | — | Other (specify below) |
| May 31, 2017 | 89K gal | Equipment Failure | — | Other (specify below) |
| May 2, 2017 | 5K gal | Grease / FOG | — | Other (specify below) |
| Apr 10, 2017 | 1K gal | Equipment Failure | — | Other (specify below) |
| Mar 18, 2017 | 26 gal | Root Intrusion | — | Street/Curb and Gutter |
| Jan 24, 2017 | 51 gal | Equipment Failure | — | Street/Curb and Gutter |
| Dec 25, 2016 | 192 gal | Root Intrusion | Yes | Drainage Channel |
| Dec 24, 2016 | 950 gal | Root Intrusion | Yes | Drainage Channel;Street/Curb and Gutter |
| Dec 23, 2016 | 93 gal | Grease / FOG | Yes | Drainage Channel |
| Nov 26, 2016 | 279 gal | Grease / FOG | Yes | Drainage Channel;Paved Surface;Street/Curb and Gutter |
| Nov 17, 2016 | 30 gal | Grease / FOG | — | Street/Curb and Gutter |
| Oct 29, 2016 | 72K gal | Other / Unknown | — | Other (specify below) |
| Oct 26, 2016 | 3 gal | Grease / FOG | — | Street/Curb and Gutter |
| Oct 26, 2016 | 30 gal | Grease / FOG | — | Street/Curb and Gutter |
| Sep 26, 2016 | 2K gal | Equipment Failure | — | Drainage Channel |
| Sep 6, 2016 | 35 gal | Equipment Failure | — | Paved Surface |
| Aug 21, 2016 | 597 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jul 22, 2016 | 211 gal | Grease / FOG | Yes | Drainage Channel |
| Jul 21, 2016 | 140 gal | Root Intrusion | — | Street/Curb and Gutter |
| Jul 19, 2016 | 135 gal | Root Intrusion | — | Street/Curb and Gutter |
| Apr 18, 2016 | 35 gal | Grease / FOG | — | Other (specify below) |
| Feb 20, 2016 | 20 gal | Equipment Failure | — | Street/Curb and Gutter |
| Feb 12, 2016 | 5 gal | Grease / FOG | Yes | Surface Water |
| Feb 1, 2016 | 125 gal | Root Intrusion | Yes | Separate Storm Drain |
| Dec 29, 2015 | 2 gal | Grease / FOG | — | Paved Surface |
| Dec 18, 2015 | 78 gal | Equipment Failure | Yes | Separate Storm Drain |
| Dec 3, 2015 | 50 gal | Grease / FOG | — | Other (specify below) |
| Nov 18, 2015 | 20 gal | Grease / FOG | — | Street/Curb and Gutter |
| Aug 29, 2015 | 30 gal | Grease / FOG | — | Street/Curb and Gutter |
| Aug 25, 2015 | 20 gal | Equipment Failure | — | Street/Curb and Gutter |
| Aug 20, 2015 | 20 gal | Equipment Failure | — | Street/Curb and Gutter |
| Aug 10, 2015 | 900 gal | Equipment Failure | Yes | Other (specify below) |
| May 6, 2015 | 20 gal | Grease / FOG | — | Street/Curb and Gutter |
| Apr 30, 2015 | 10 gal | Grease / FOG | — | Street/Curb and Gutter |
| Apr 11, 2015 | 420 gal | Grease / FOG | Yes | Other (specify below) |
| Apr 11, 2015 | 759 gal | Root Intrusion | — | Street/Curb and Gutter |
| Apr 11, 2015 | 200 gal | Other / Unknown | Yes | Drainage Channel |
| Mar 24, 2015 | 60 gal | Equipment Failure | — | Street/Curb and Gutter |
| Feb 17, 2015 | 100 gal | Grease / FOG | — | Street/Curb and Gutter |
| Dec 24, 2014 | 44 gal | Equipment Failure | — | Street/Curb and Gutter |
| Nov 20, 2014 | 40 gal | Root Intrusion | — | Street/Curb and Gutter |
| Oct 21, 2014 | 50 gal | Grease / FOG | Yes | Other (specify below);Street/Curb and Gutter |
| Oct 21, 2014 | 40 gal | Grease / FOG | — | Street/Curb and Gutter |
| Sep 15, 2014 | 50 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jul 10, 2014 | 40 gal | Grease / FOG | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Jun 30, 2014 | 10 gal | Equipment Failure | — | Paved Surface |
| May 22, 2014 | 305 gal | Other / Unknown | — | Paved Surface;Unpaved surface |
| Apr 28, 2014 | 98 gal | Grease / FOG | — | Paved Surface |
| Apr 18, 2014 | 165 gal | Equipment Failure | — | Street/Curb and Gutter |
| Feb 24, 2014 | 5 gal | Equipment Failure | — | Paved Surface |
| Jan 27, 2014 | 350 gal | Grease / FOG | — | Street/Curb and Gutter |
| Oct 21, 2013 | 300 gal | Grease / FOG | — | Street/Curb and Gutter |
| Oct 1, 2013 | 60 gal | Grease / FOG | — | Paved Surface |
| Aug 23, 2013 | 640 gal | Other / Unknown | — | Street/Curb and Gutter |
| Aug 20, 2013 | 100 gal | Grease / FOG | — | Street/curb and gutter |
| Jul 5, 2013 | 576 gal | Equipment Failure | — | Other (specify below) |
| May 9, 2013 | 50 gal | Grease / FOG | — | Other (specify below) |
| Apr 26, 2013 | 50 gal | Equipment Failure | — | Street/curb and gutter |
| Apr 18, 2013 | 92 gal | Root Intrusion | — | Street/curb and gutter |
| Mar 31, 2013 | 25 gal | Grease / FOG | — | Street/curb and gutter |
| Mar 30, 2013 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Feb 7, 2013 | 15 gal | Grease / FOG | — | Street/curb and gutter |
| Jan 29, 2013 | 94 gal | Other / Unknown | — | Street/curb and gutter |
| Jan 6, 2013 | 171 gal | Root Intrusion | — | Separate storm drain;Street/curb and gutter |
| Jan 5, 2013 | 240 gal | Other / Unknown | — | Street/curb and gutter |
| Dec 27, 2012 | 119 gal | Grease / FOG | — | Street/curb and gutter;Other (specify below) |
| Dec 24, 2012 | 120 gal | Grease / FOG | — | Separate storm drain;Street/curb and gutter |
| Dec 22, 2012 | 280 gal | Grease / FOG | — | Separate storm drain;Street/curb and gutter |
| Nov 13, 2012 | 200 gal | Grease / FOG | — | Separate storm drain;Street/curb and gutter |
| Nov 5, 2012 | 10 gal | Grease / FOG | — | Street/curb and gutter |
| Oct 19, 2012 | 46 gal | Other / Unknown | — | Separate storm drain;Street/curb and gutter |
| Jul 23, 2012 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| May 1, 2012 | 180 gal | Equipment Failure | — | Street/curb and gutter |
| Apr 3, 2012 | 1K gal | Other / Unknown | Yes | Other (specify below) |
| Mar 15, 2012 | 45 gal | Root Intrusion | — | Street/curb and gutter |
| Mar 5, 2012 | 25 gal | Grease / FOG | — | Street/curb and gutter |
| Feb 22, 2012 | 150 gal | Other / Unknown | — | Other (specify below) |
| Feb 6, 2012 | 100 gal | Grease / FOG | — | Street/curb and gutter |
| Jan 28, 2012 | 320 gal | Grease / FOG | — | Street/curb and gutter |
| Jan 17, 2012 | 180 gal | Other / Unknown | — | Street/curb and gutter |
| Dec 20, 2011 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Dec 20, 2011 | 200 gal | Other / Unknown | — | Street/curb and gutter |
| Nov 17, 2011 | 50 gal | Other / Unknown | — | Street/curb and gutter |
| Oct 30, 2011 | 100 gal | Grease / FOG | — | Street/curb and gutter |
| Oct 10, 2011 | 10 gal | Grease / FOG | — | Other paved surface |
| Oct 7, 2011 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Oct 4, 2011 | 10 gal | Other / Unknown | — | Street/curb and gutter |
| Sep 1, 2011 | 70 gal | Root Intrusion | — | Street/curb and gutter |
| Jul 19, 2011 | 50 gal | Other / Unknown | — | Street/curb and gutter |
| Jul 19, 2011 | 5 gal | Grease / FOG | — | Street/curb and gutter |
| Jun 16, 2011 | 15 gal | Grease / FOG | — | Street/curb and gutter |
| May 22, 2011 | 150 gal | Other / Unknown | — | Street/curb and gutter |
| May 18, 2011 | 3K gal | Equipment Failure | — | Other (specify below) |
| Apr 18, 2011 | 40 gal | Other / Unknown | Yes | Street/curb and gutter;Other (specify below) |
| Apr 17, 2011 | 100 gal | Grease / FOG | — | Other (specify below) |
| Apr 16, 2011 | 200 gal | Other / Unknown | Yes | Street/curb and gutter |
| Apr 5, 2011 | 60 gal | Other / Unknown | — | Other (specify below) |
| Mar 28, 2011 | 275 gal | Grease / FOG | — | Other (specify below) |
| Feb 16, 2011 | 30 gal | Grease / FOG | — | Other (specify below) |
| Jan 27, 2011 | 500 gal | Grease / FOG | — | Street/curb and gutter |
| Jan 12, 2011 | 250 gal | Other / Unknown | — | Unpaved surface |
| Jan 4, 2011 | 20 gal | Other / Unknown | Yes | Street/curb and gutter;Other (specify below) |
| Oct 27, 2010 | 750 gal | Root Intrusion | Yes | Storm drain;Street/curb and gutter;Other (specify below) |
| Oct 24, 2010 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Oct 21, 2010 | 70 gal | Grease / FOG | — | Building or structure;Other (specify below) |
| Aug 21, 2010 | 80 gal | Grease / FOG | — | Street/curb and gutter;Unpaved surface |
| Aug 9, 2010 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Jun 1, 2010 | 850 gal | Other / Unknown | — | Street/curb and gutter |
| Apr 13, 2010 | 20 gal | Grease / FOG | — | Street/curb and gutter |
| Apr 7, 2010 | 500 gal | Grease / FOG | — | Street/curb and gutter |
| Apr 5, 2010 | 250 gal | Grease / FOG | — | Storm drain;Street/curb and gutter |
| Feb 19, 2010 | 75 gal | Root Intrusion | — | Street/curb and gutter |
| Feb 17, 2010 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Feb 3, 2010 | 2K gal | Equipment Failure | Yes | Separate storm drain;Street/curb and gutter;Other (specify below) |
| Jan 9, 2010 | 5K gal | Grease / FOG | Yes | Separate storm drain;Street/curb and gutter |
| Jan 5, 2010 | 2K gal | Equipment Failure | Yes | Separate storm drain;Unpaved surface |
| Dec 23, 2009 | 300 gal | Root Intrusion | — | Unpaved surface;Other (specify below) |
| Dec 12, 2009 | 4K gal | Other / Unknown | Yes | Other (specify below) |
| Nov 30, 2009 | 750 gal | Grease / FOG | — | Other (specify below) |
| Nov 26, 2009 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Nov 2, 2009 | 30 gal | Grease / FOG | — | Street/curb and gutter |
| Oct 19, 2009 | 50 gal | Other / Unknown | — | Street/curb and gutter |
| Oct 5, 2009 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Jul 29, 2009 | 60 gal | Other / Unknown | — | Street/curb and gutter |
| Jul 5, 2009 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Jul 5, 2009 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Jul 1, 2009 | 100 gal | Grease / FOG | Yes | Separate storm drain;Street/curb and gutter |
| Jun 22, 2009 | 100 gal | Grease / FOG | — | Street/curb and gutter |
| Apr 13, 2009 | 60 gal | Grease / FOG | — | Street/curb and gutter |
| Mar 12, 2009 | 350 gal | Equipment Failure | — | Separate storm drain;Street/curb and gutter |
| Mar 9, 2009 | 500 gal | Grease / FOG | — | Street/curb and gutter;Unpaved surface |
| Mar 7, 2009 | 20 gal | Equipment Failure | — | Street/curb and gutter |
| Feb 25, 2009 | 200 gal | Equipment Failure | Yes | Separate storm drain;Street/curb and gutter |
| Feb 5, 2009 | 325 gal | Other / Unknown | — | Separate storm drain;Street/curb and gutter |
| Feb 3, 2009 | 50 gal | Other / Unknown | — | Street/curb and gutter |
| Jan 27, 2009 | 450 gal | Other / Unknown | Yes | Separate storm drain;Street/curb and gutter |
| Jan 21, 2009 | 100 gal | Other / Unknown | — | Street/curb and gutter |
| Dec 24, 2008 | 300 gal | Other / Unknown | Yes | Separate storm drain |
| Dec 12, 2008 | 100 gal | Other / Unknown | — | Street/curb and gutter |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.