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California · California (CIWQS)
Mt Shasta City
D
Frequently reaches water
Reported events
66
Total volume
2.9M gal
Reached waterways
26 (39%)
Reporting since
2008
What caused the overflows
Equipment Failure
28
Root Intrusion
19
Other / Unknown
13
Grease / FOG
3
Rainfall / Flooding
2
Capacity Issue
1
Reported overflow events (showing 66 of 66)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Mar 23, 2026 | 750 gal | Root Intrusion | Yes | Tributary of cold creek. |
| Aug 25, 2024 | 650 gal | Equipment Failure | Yes | Tributary to Lake Siskiyou |
| May 6, 2024 | 384 gal | Root Intrusion | — | — |
| Nov 28, 2023 | 250 gal | Equipment Failure | — | — |
| Apr 25, 2023 | 10 gal | Equipment Failure | — | Street/Curb and Gutter |
| Sep 24, 2022 | 10 gal | Equipment Failure | — | Paved Surface |
| Apr 5, 2021 | 135 gal | Equipment Failure | — | Unpaved surface |
| Dec 7, 2020 | 750 gal | Root Intrusion | — | Unpaved surface |
| Nov 30, 2020 | 10 gal | Root Intrusion | — | Street/Curb and Gutter |
| Oct 5, 2020 | 22 gal | Equipment Failure | Yes | Separate Storm Drain |
| Mar 4, 2020 | 540 gal | Equipment Failure | Yes | Separate Storm Drain |
| Sep 1, 2019 | 10 gal | Equipment Failure | — | Unpaved surface |
| Sep 20, 2018 | 5 gal | Root Intrusion | — | Paved Surface |
| Jan 1, 2018 | 900 gal | Root Intrusion | Yes | Other (specify below) |
| Nov 30, 2017 | 10 gal | Root Intrusion | — | Paved Surface |
| Apr 26, 2017 | 600 gal | Equipment Failure | Yes | Separate Storm Drain |
| Mar 17, 2017 | 285 gal | Root Intrusion | Yes | Separate Storm Drain |
| Feb 27, 2017 | 540 gal | Equipment Failure | Yes | Street/Curb and Gutter |
| Feb 9, 2017 | 5K gal | Rainfall / Flooding | Yes | Drainage Channel |
| Jan 8, 2017 | 88K gal | Capacity Issue | Yes | Separate Storm Drain |
| Jan 2, 2017 | 2.7M gal | Equipment Failure | Yes | Surface Water |
| Nov 20, 2016 | 600 gal | Equipment Failure | Yes | Separate Storm Drain |
| Apr 9, 2016 | 50 gal | Equipment Failure | Yes | Separate Storm Drain |
| Apr 5, 2016 | 10 gal | Equipment Failure | Yes | Separate Storm Drain |
| Mar 8, 2016 | 900 gal | Root Intrusion | — | Street/Curb and Gutter |
| Oct 14, 2015 | 950 gal | Root Intrusion | Yes | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Aug 16, 2015 | 250 gal | Equipment Failure | Yes | Paved Surface;Separate Storm Drain;Unpaved surface |
| Jun 20, 2015 | 15 gal | Equipment Failure | — | Paved Surface |
| May 10, 2015 | 30 gal | Equipment Failure | — | Paved Surface |
| Mar 1, 2015 | 100 gal | Equipment Failure | — | Unpaved surface |
| Feb 26, 2015 | 45 gal | Root Intrusion | — | Unpaved surface |
| Jan 13, 2015 | 100 gal | Root Intrusion | Yes | Paved Surface;Separate Storm Drain |
| Jan 8, 2015 | 125 gal | Grease / FOG | — | Paved Surface |
| Jan 5, 2015 | 30 gal | Equipment Failure | — | Paved Surface |
| Jan 3, 2015 | 80 gal | Grease / FOG | — | Paved Surface |
| Dec 23, 2014 | 300 gal | Equipment Failure | — | Paved Surface |
| Dec 22, 2014 | 500 gal | Root Intrusion | — | Paved Surface |
| Dec 11, 2014 | 2K gal | Rainfall / Flooding | Yes | Separate Storm Drain |
| Nov 14, 2014 | 20 gal | Equipment Failure | — | Other (specify below);Street/Curb and Gutter |
| Nov 6, 2014 | 10 gal | Equipment Failure | — | Paved Surface |
| Oct 27, 2014 | 750 gal | Equipment Failure | Yes | Separate Storm Drain |
| Apr 11, 2014 | 5 gal | Equipment Failure | — | Paved Surface |
| Apr 10, 2014 | 35 gal | Root Intrusion | — | Paved Surface |
| Feb 20, 2014 | 900 gal | Equipment Failure | Yes | Drainage Channel |
| Feb 18, 2014 | 912 gal | Root Intrusion | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Feb 18, 2014 | 4K gal | Root Intrusion | Yes | Drainage Channel |
| Jan 26, 2014 | 92K gal | Equipment Failure | Yes | Drainage Channel |
| Dec 31, 2013 | 25 gal | Equipment Failure | — | Street/Curb and Gutter |
| Dec 29, 2013 | 100 gal | Equipment Failure | — | Paved Surface;Unpaved surface |
| Aug 9, 2013 | 60 gal | Other / Unknown | — | Street/curb and gutter |
| Feb 26, 2013 | 25 gal | Root Intrusion | Yes | Unpaved surface |
| Feb 1, 2013 | 10 gal | Root Intrusion | — | Street/curb and gutter |
| Nov 25, 2012 | 230 gal | Other / Unknown | Yes | Separate storm drain;Street/curb and gutter;Surface water |
| Aug 11, 2012 | 10 gal | Other / Unknown | — | Other paved surface |
| Jun 26, 2012 | 10 gal | Other / Unknown | — | Street/curb and gutter |
| May 21, 2012 | 20 gal | Other / Unknown | — | Unpaved surface |
| May 17, 2012 | 5 gal | Other / Unknown | — | Unpaved surface |
| Mar 23, 2012 | 20 gal | Other / Unknown | — | Unpaved surface |
| Jun 1, 2010 | 3 gal | Other / Unknown | — | Street/curb and gutter |
| Apr 6, 2010 | 40 gal | Other / Unknown | — | Storm drain |
| Feb 10, 2010 | 500 gal | Other / Unknown | Yes | Separate storm drain |
| Jun 20, 2009 | 50 gal | Other / Unknown | — | Unpaved surface |
| May 14, 2009 | 150 gal | Other / Unknown | — | Unpaved surface |
| Jan 18, 2009 | 10 gal | Root Intrusion | — | Street/curb and gutter |
| Sep 17, 2008 | 265 gal | Grease / FOG | — | Unpaved surface |
| Feb 29, 2008 | 30 gal | Other / Unknown | — | Separate storm drain |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.