All rankings
California · California (CIWQS)
Piedmont City
C
Often reaches water
Reported events
56
Total volume
134K gal
Reached waterways
9 (16%)
Reporting since
2007
What caused the overflows
Equipment Failure
25
Other / Unknown
20
Root Intrusion
9
Grease / FOG
1
Rainfall / Flooding
1
Reported overflow events (showing 56 of 56)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Oct 14, 2024 | 350 gal | Root Intrusion | — | — |
| Mar 18, 2024 | 26K gal | Root Intrusion | Yes | Indian Gulch Creek |
| Mar 18, 2024 | 64K gal | Other / Unknown | Yes | — |
| Jan 22, 2024 | 720 gal | Equipment Failure | — | — |
| Jan 22, 2024 | 720 gal | Equipment Failure | — | — |
| Jan 22, 2024 | 720 gal | Equipment Failure | — | — |
| Jan 22, 2024 | 720 gal | Equipment Failure | — | — |
| Dec 31, 2022 | 14K gal | Rainfall / Flooding | Yes | Separate Storm Drain |
| Oct 5, 2022 | 4 gal | Equipment Failure | — | Paved Surface |
| Nov 13, 2021 | 2K gal | Other / Unknown | — | Unpaved surface |
| Oct 25, 2021 | 70 gal | Root Intrusion | — | Unpaved surface |
| Jul 31, 2021 | 20 gal | Equipment Failure | — | Paved Surface |
| May 18, 2020 | 40 gal | Root Intrusion | — | Unpaved surface |
| Apr 20, 2020 | 20 gal | Equipment Failure | — | Unpaved surface |
| Apr 20, 2020 | 20 gal | Equipment Failure | — | Unpaved surface |
| Dec 3, 2018 | 7 gal | Equipment Failure | — | Unpaved surface |
| Oct 26, 2017 | 10 gal | Equipment Failure | — | Building or Structure |
| Apr 1, 2017 | 272 gal | Other / Unknown | — | Unpaved surface |
| Feb 28, 2015 | 900 gal | Other / Unknown | Yes | Separate Storm Drain |
| Apr 16, 2014 | 4 gal | Equipment Failure | — | Other (specify below) |
| Jan 22, 2014 | 10 gal | Other / Unknown | — | Street/Curb and Gutter |
| Oct 21, 2013 | 330 gal | Other / Unknown | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Oct 2, 2013 | 5 gal | Other / Unknown | — | Other (specify below) |
| Aug 9, 2013 | 3 gal | Other / Unknown | — | Street/curb and gutter |
| Aug 7, 2013 | 180 gal | Other / Unknown | — | Building or structure |
| Apr 24, 2013 | 5 gal | Other / Unknown | — | Street/curb and gutter |
| Feb 28, 2013 | 5 gal | Other / Unknown | — | Unpaved surface |
| Nov 18, 2012 | 20 gal | Equipment Failure | — | Other (specify below) |
| May 27, 2012 | 3K gal | Other / Unknown | — | Separate storm drain |
| Dec 21, 2011 | 15 gal | Other / Unknown | — | Unpaved surface |
| Nov 14, 2011 | 925 gal | Other / Unknown | Yes | Separate storm drain;Street/curb and gutter |
| Oct 14, 2011 | 60 gal | Other / Unknown | — | Street/curb and gutter |
| Nov 26, 2010 | 285 gal | Equipment Failure | — | Separate storm drain;Street/curb and gutter |
| Nov 5, 2010 | 75 gal | Other / Unknown | — | Separate storm drain |
| Oct 1, 2010 | 10 gal | Equipment Failure | — | Street/curb and gutter;Other (specify below) |
| Sep 1, 2010 | 1 gal | Equipment Failure | — | Other (specify below) |
| Aug 21, 2010 | 2 gal | Root Intrusion | — | Other (specify below) |
| Jan 27, 2010 | 2 gal | Other / Unknown | — | Unpaved surface |
| Jan 2, 2010 | 20 gal | Equipment Failure | — | Building or structure |
| Jun 2, 2009 | 9K gal | Equipment Failure | — | Other (specify below) |
| May 7, 2009 | 210 gal | Equipment Failure | — | Unpaved surface |
| Mar 27, 2009 | 175 gal | Other / Unknown | — | Storm drain |
| Feb 17, 2009 | 9K gal | Equipment Failure | — | Building or structure;Separate storm drain |
| Jan 30, 2009 | 300 gal | Root Intrusion | Yes | Separate storm drain |
| Dec 10, 2008 | 150 gal | Other / Unknown | Yes | Separate storm drain |
| Nov 15, 2008 | 58 gal | Grease / FOG | — | Unpaved surface |
| Oct 16, 2008 | 50 gal | Root Intrusion | — | Unpaved surface |
| Aug 26, 2008 | 30 gal | Equipment Failure | — | Unpaved surface |
| Jun 2, 2008 | 10 gal | Equipment Failure | — | Unpaved surface |
| May 15, 2008 | 5 gal | Root Intrusion | — | Unpaved surface |
| Mar 14, 2008 | 150 gal | Other / Unknown | — | Separate storm drain |
| Feb 29, 2008 | 165 gal | Root Intrusion | Yes | Surface water |
| Nov 8, 2007 | 5 gal | Equipment Failure | — | Unpaved surface |
| Sep 24, 2007 | 6 gal | Equipment Failure | — | Unpaved surface |
| Sep 15, 2007 | 30 gal | Equipment Failure | — | Unpaved surface |
| Jun 8, 2007 | 31 gal | Equipment Failure | — | Unpaved surface |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.