All rankings
California · California (CIWQS)
225 Hillsdale Way (ELHSMD)
D
Frequently reaches water
Reported events
67
Total volume
128K gal
Reached waterways
22 (33%)
Reporting since
2007
What caused the overflows
Other / Unknown
45
Root Intrusion
15
Equipment Failure
5
Grease / FOG
2
Reported overflow events (showing 67 of 67)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Apr 29, 2026 | 93 gal | Root Intrusion | — | — |
| May 8, 2023 | 837 gal | Other / Unknown | Yes | Other (specify below);Paved Surface;Surface Water;Unpaved surface |
| Mar 10, 2023 | 14K gal | Root Intrusion | Yes | Separate Storm Drain;Surface Water;Unpaved surface |
| Sep 20, 2021 | 115 gal | Other / Unknown | Yes | Surface Water;Unpaved surface |
| Sep 10, 2021 | 306 gal | Equipment Failure | — | Unpaved surface |
| Aug 3, 2021 | 704 gal | Other / Unknown | — | Unpaved surface |
| Nov 6, 2020 | 90 gal | Root Intrusion | — | Unpaved surface |
| Sep 10, 2020 | 143 gal | Other / Unknown | — | Paved Surface;Unpaved surface |
| Oct 4, 2019 | 179 gal | Other / Unknown | — | Unpaved surface |
| Jul 3, 2019 | 34 gal | Root Intrusion | — | Unpaved surface |
| Jan 12, 2019 | 246 gal | Other / Unknown | — | Unpaved surface |
| Nov 24, 2018 | 235 gal | Other / Unknown | — | Unpaved surface |
| Nov 22, 2018 | 9K gal | Root Intrusion | Yes | Other (specify below);Paved Surface;Separate Storm Drain;Surface Water;Unpaved surface |
| Oct 10, 2018 | 16 gal | Other / Unknown | — | Paved Surface;Street/Curb and Gutter |
| Aug 9, 2017 | 889 gal | Other / Unknown | Yes | Surface Water;Unpaved surface |
| Mar 6, 2017 | 1K gal | Other / Unknown | Yes | Surface Water;Unpaved surface |
| Feb 26, 2017 | 6K gal | Other / Unknown | Yes | Surface Water;Unpaved surface |
| Jan 8, 2017 | 11K gal | Other / Unknown | Yes | Building or Structure;Drainage Channel;Other (specify below);Paved Surface;Surface Water;Unpaved surface |
| Dec 25, 2016 | 3K gal | Other / Unknown | Yes | Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface |
| May 3, 2016 | 68 gal | Root Intrusion | — | Unpaved surface |
| Mar 10, 2016 | 6K gal | Root Intrusion | Yes | Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water |
| Jan 21, 2016 | 20 gal | Other / Unknown | — | Paved Surface;Street/Curb and Gutter;Unpaved surface |
| Jan 13, 2016 | 4K gal | Other / Unknown | Yes | Paved Surface;Surface Water;Unpaved surface |
| Dec 22, 2015 | 13K gal | Root Intrusion | Yes | Paved Surface;Surface Water;Unpaved surface |
| Dec 5, 2015 | 9K gal | Root Intrusion | Yes | Drainage Channel;Surface Water;Unpaved surface |
| Sep 11, 2015 | 124 gal | Other / Unknown | — | Paved Surface;Unpaved surface |
| Aug 27, 2015 | 172 gal | Other / Unknown | — | Paved Surface;Separate Storm Drain;Unpaved surface |
| Aug 26, 2015 | 853 gal | Other / Unknown | — | Paved Surface;Separate Storm Drain;Unpaved surface |
| Jan 26, 2015 | 131 gal | Other / Unknown | Yes | Separate Storm Drain;Surface Water |
| Sep 1, 2014 | 24 gal | Other / Unknown | — | Paved Surface;Unpaved surface |
| May 18, 2014 | 4K gal | Other / Unknown | Yes | Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface |
| Jan 23, 2014 | 15K gal | Other / Unknown | Yes | Separate Storm Drain;Surface Water;Unpaved surface |
| Nov 8, 2013 | 18K gal | Other / Unknown | — | Separate Storm Drain;Unpaved surface |
| Feb 12, 2013 | 620 gal | Other / Unknown | — | Building or structure;Unpaved surface |
| Feb 10, 2013 | 147 gal | Other / Unknown | — | Other paved surface;Unpaved surface |
| Jan 26, 2013 | 88 gal | Other / Unknown | — | Other paved surface;Unpaved surface |
| Nov 13, 2012 | 969 gal | Equipment Failure | — | Unpaved surface |
| Sep 18, 2012 | 150 gal | Root Intrusion | Yes | Surface water;Unpaved surface |
| Apr 17, 2012 | 120 gal | Other / Unknown | — | Unpaved surface |
| Feb 22, 2012 | 105 gal | Other / Unknown | — | Unpaved surface |
| Feb 1, 2012 | 2K gal | Other / Unknown | Yes | Surface water |
| Jan 31, 2012 | 190 gal | Other / Unknown | — | Unpaved surface |
| May 5, 2011 | 6 gal | Other / Unknown | — | Unpaved surface |
| Mar 20, 2011 | 214 gal | Other / Unknown | — | Unpaved surface |
| Feb 18, 2011 | 49 gal | Other / Unknown | — | Separate storm drain |
| Jun 18, 2010 | 56 gal | Other / Unknown | — | Unpaved surface |
| Apr 19, 2010 | 5 gal | Other / Unknown | — | Other paved surface;Unpaved surface |
| Apr 15, 2010 | 10 gal | Other / Unknown | — | Unpaved surface |
| Mar 19, 2010 | 60 gal | Root Intrusion | — | Unpaved surface |
| Jan 31, 2010 | 240 gal | Root Intrusion | Yes | Other paved surface;Unpaved surface |
| Nov 6, 2009 | 860 gal | Grease / FOG | — | Other (specify below) |
| Aug 14, 2009 | 5 gal | Equipment Failure | — | Other (specify below) |
| Aug 3, 2009 | 89 gal | Equipment Failure | — | Unpaved surface |
| May 28, 2009 | 1 gal | Other / Unknown | — | Unpaved surface |
| Apr 27, 2009 | 850 gal | Other / Unknown | — | Unpaved surface |
| Feb 16, 2009 | 675 gal | Other / Unknown | Yes | Surface water |
| Feb 9, 2009 | 125 gal | Other / Unknown | — | Street/curb and gutter;Unpaved surface |
| Jan 22, 2009 | 252 gal | Grease / FOG | — | Building or structure;Other paved surface;Unpaved surface;Other (specify below) |
| Jan 16, 2009 | 200 gal | Root Intrusion | — | Unpaved surface |
| Jan 14, 2009 | 60 gal | Root Intrusion | — | Storm drain;Street/curb and gutter |
| Oct 29, 2008 | 5 gal | Other / Unknown | — | Unpaved surface |
| Jun 9, 2008 | 600 gal | Other / Unknown | Yes | Surface water;Unpaved surface |
| May 14, 2008 | 10 gal | Root Intrusion | — | Unpaved surface |
| Apr 6, 2008 | 9 gal | Equipment Failure | — | Unpaved surface |
| Oct 25, 2007 | 1 gal | Other / Unknown | — | Unpaved surface |
| Oct 1, 2007 | 20 gal | Other / Unknown | — | Unpaved surface |
| Jul 27, 2007 | 180 gal | Other / Unknown | Yes | Unpaved surface |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.