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California · California (CIWQS)
Marin Cnty Sanitary District 5
C
Often reaches water
Reported events
221
Total volume
43K gal
Reached waterways
34 (15%)
Reporting since
2007
What caused the overflows
Root Intrusion
149
Equipment Failure
51
Other / Unknown
10
Grease / FOG
9
Capacity Issue
2
Reported overflow events (showing 200 of 221)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Jan 5, 2026 | 55 gal | Equipment Failure | — | — |
| Feb 4, 2025 | 110 gal | Grease / FOG | — | — |
| Nov 11, 2023 | 30 gal | Root Intrusion | — | Richardson Bay |
| Mar 10, 2023 | 75 gal | Grease / FOG | — | Unpaved surface |
| Feb 27, 2023 | 15 gal | Root Intrusion | — | Paved Surface |
| Jan 28, 2023 | 30 gal | Equipment Failure | — | Paved Surface |
| Jan 24, 2023 | 45 gal | Root Intrusion | — | Unpaved surface |
| Jan 23, 2023 | 215 gal | Equipment Failure | — | Unpaved surface |
| Jan 22, 2023 | 5 gal | Root Intrusion | — | Unpaved surface |
| Dec 31, 2022 | 500 gal | Root Intrusion | — | Unpaved surface |
| Oct 20, 2022 | 10 gal | Root Intrusion | — | Paved Surface |
| Jul 14, 2022 | 15 gal | Equipment Failure | — | Unpaved surface |
| Jun 27, 2022 | 10 gal | Root Intrusion | — | Unpaved surface |
| Jun 27, 2022 | 100 gal | Equipment Failure | — | Unpaved surface |
| Apr 29, 2022 | 50 gal | Root Intrusion | — | Paved Surface;Unpaved surface |
| Apr 24, 2022 | 15 gal | Equipment Failure | — | Paved Surface |
| Apr 24, 2022 | 15 gal | Root Intrusion | — | Unpaved surface |
| Feb 17, 2022 | 800 gal | Root Intrusion | Yes | Drainage Channel;Separate Storm Drain |
| Feb 10, 2022 | 200 gal | Grease / FOG | — | Unpaved surface |
| Feb 7, 2022 | 10 gal | Grease / FOG | — | Unpaved surface |
| Jan 20, 2022 | 100 gal | Equipment Failure | — | Unpaved surface |
| Jan 20, 2022 | 60 gal | Root Intrusion | — | Paved Surface |
| Jan 12, 2022 | 60 gal | Root Intrusion | — | Unpaved surface |
| Jan 2, 2022 | 60 gal | Root Intrusion | Yes | Separate Storm Drain;Street/Curb and Gutter |
| Dec 27, 2021 | 1 gal | Grease / FOG | — | Unpaved surface |
| Dec 20, 2021 | 15 gal | Equipment Failure | — | Unpaved surface |
| Nov 24, 2021 | 100 gal | Root Intrusion | Yes | Separate Storm Drain;Surface Water |
| Nov 23, 2021 | 50 gal | Root Intrusion | Yes | Separate Storm Drain |
| Nov 23, 2021 | 50 gal | Root Intrusion | Yes | Separate Storm Drain |
| Nov 10, 2021 | 300 gal | Equipment Failure | — | Paved Surface;Unpaved surface |
| Oct 27, 2021 | 46 gal | Root Intrusion | — | Paved Surface |
| Oct 25, 2021 | 50 gal | Other / Unknown | — | Paved Surface |
| Oct 24, 2021 | 500 gal | Equipment Failure | Yes | Separate Storm Drain |
| Oct 24, 2021 | 200 gal | Equipment Failure | Yes | Separate Storm Drain |
| Oct 24, 2021 | 800 gal | Capacity Issue | Yes | Separate Storm Drain |
| Sep 21, 2021 | 40 gal | Equipment Failure | — | Unpaved surface |
| Sep 17, 2021 | 40 gal | Root Intrusion | — | Unpaved surface |
| Aug 3, 2021 | 625 gal | Equipment Failure | — | Paved Surface;Unpaved surface |
| Jun 27, 2021 | 40 gal | Root Intrusion | — | Paved Surface |
| Mar 27, 2021 | 10 gal | Root Intrusion | — | Paved Surface |
| Mar 10, 2021 | 200 gal | Equipment Failure | — | Unpaved surface |
| Feb 12, 2021 | 250 gal | Equipment Failure | — | Unpaved surface |
| Feb 6, 2021 | 50 gal | Root Intrusion | — | Unpaved surface |
| Feb 4, 2021 | 5 gal | Root Intrusion | — | Paved Surface |
| Jan 21, 2021 | 15 gal | Root Intrusion | — | Paved Surface |
| Dec 8, 2020 | 50 gal | Equipment Failure | — | Building or Structure;Unpaved surface |
| Nov 22, 2020 | 25 gal | Equipment Failure | — | Paved Surface |
| Sep 1, 2020 | 10 gal | Root Intrusion | — | Paved Surface |
| May 20, 2020 | 15 gal | Root Intrusion | — | Paved Surface |
| Apr 26, 2020 | 25 gal | Equipment Failure | — | Paved Surface |
| Apr 20, 2020 | 6 gal | Root Intrusion | — | Paved Surface |
| Mar 15, 2020 | 100 gal | Equipment Failure | — | Separate Storm Drain;Street/Curb and Gutter;Unpaved surface |
| Mar 2, 2020 | 10 gal | Equipment Failure | — | Paved Surface |
| Dec 4, 2019 | 50 gal | Equipment Failure | — | Unpaved surface |
| Jun 19, 2019 | 15 gal | Root Intrusion | — | Paved Surface |
| May 10, 2019 | 20 gal | Equipment Failure | — | Unpaved surface |
| Apr 1, 2019 | 80 gal | Root Intrusion | — | Unpaved surface |
| Mar 16, 2019 | 20 gal | Equipment Failure | — | Unpaved surface |
| Feb 14, 2019 | 650 gal | Equipment Failure | Yes | Separate Storm Drain |
| Feb 14, 2019 | 600 gal | Other / Unknown | — | Unpaved surface |
| Feb 13, 2019 | 600 gal | Capacity Issue | Yes | Separate Storm Drain |
| Feb 2, 2019 | 50 gal | Equipment Failure | — | Paved Surface |
| Jan 31, 2019 | 190 gal | Root Intrusion | — | Unpaved surface |
| Jan 27, 2019 | 5 gal | Root Intrusion | — | Unpaved surface |
| Jan 20, 2019 | 20 gal | Root Intrusion | — | Street/Curb and Gutter |
| Jan 16, 2019 | 75 gal | Root Intrusion | — | Unpaved surface |
| Jan 7, 2019 | 5 gal | Root Intrusion | — | Unpaved surface |
| Dec 22, 2018 | 5 gal | Root Intrusion | — | Paved Surface |
| Dec 20, 2018 | 60 gal | Root Intrusion | — | Paved Surface |
| Nov 25, 2018 | 195 gal | Root Intrusion | Yes | Drainage Channel |
| Nov 19, 2018 | 15 gal | Equipment Failure | — | Unpaved surface |
| Sep 16, 2018 | 15 gal | Grease / FOG | — | Unpaved surface |
| Aug 30, 2018 | 30 gal | Root Intrusion | — | Unpaved surface |
| Jul 31, 2018 | 50 gal | Equipment Failure | Yes | Separate Storm Drain |
| Jul 27, 2018 | 50 gal | Root Intrusion | — | Unpaved surface |
| Jul 12, 2018 | 20 gal | Root Intrusion | — | Other (specify below) |
| Jun 21, 2018 | 150 gal | Root Intrusion | Yes | Other (specify below) |
| Jun 5, 2018 | 20 gal | Equipment Failure | — | Unpaved surface |
| Mar 3, 2018 | 15 gal | Root Intrusion | — | Unpaved surface |
| Mar 2, 2018 | 102 gal | Equipment Failure | — | Unpaved surface |
| Feb 21, 2018 | 72 gal | Root Intrusion | — | Unpaved surface |
| Jan 9, 2018 | 13 gal | Root Intrusion | — | Paved Surface |
| Dec 27, 2017 | 4 gal | Equipment Failure | — | Unpaved surface |
| Dec 13, 2017 | 5 gal | Root Intrusion | — | Unpaved surface |
| Dec 13, 2017 | 3 gal | Equipment Failure | — | Unpaved surface |
| Dec 1, 2017 | 1 gal | Root Intrusion | — | Paved Surface |
| Nov 1, 2017 | 1 gal | Grease / FOG | — | Unpaved surface |
| Oct 23, 2017 | 10 gal | Root Intrusion | — | Paved Surface |
| Apr 6, 2017 | 60 gal | Root Intrusion | — | Unpaved surface |
| Feb 9, 2017 | 3 gal | Root Intrusion | — | Unpaved surface |
| Feb 6, 2017 | 55 gal | Root Intrusion | — | Other (specify below) |
| Feb 3, 2017 | 3 gal | Root Intrusion | — | Unpaved surface |
| Jan 11, 2017 | 15 gal | Root Intrusion | — | Separate Storm Drain |
| Jan 11, 2017 | 150 gal | Root Intrusion | — | Other (specify below) |
| Jan 9, 2017 | 1 gal | Root Intrusion | — | Paved Surface |
| Dec 28, 2016 | 50 gal | Root Intrusion | — | Unpaved surface |
| Dec 2, 2016 | 50 gal | Equipment Failure | — | Unpaved surface |
| Aug 23, 2016 | 22 gal | Root Intrusion | — | Unpaved surface |
| Aug 1, 2016 | 90 gal | Root Intrusion | — | Unpaved surface |
| Jul 31, 2016 | 68 gal | Equipment Failure | — | Unpaved surface |
| Jul 29, 2016 | 45 gal | Equipment Failure | — | Unpaved surface |
| Mar 21, 2016 | 75 gal | Root Intrusion | — | Unpaved surface |
| Mar 19, 2016 | 840 gal | Root Intrusion | — | Unpaved surface |
| Mar 18, 2016 | 330 gal | Root Intrusion | — | Unpaved surface |
| Mar 7, 2016 | 600 gal | Equipment Failure | Yes | Separate Storm Drain |
| Feb 25, 2016 | 210 gal | Root Intrusion | — | Unpaved surface |
| Feb 17, 2016 | 20 gal | Equipment Failure | — | Unpaved surface |
| Feb 14, 2016 | 9 gal | Root Intrusion | — | Unpaved surface |
| Feb 8, 2016 | 10 gal | Root Intrusion | — | Unpaved surface |
| Feb 8, 2016 | 10 gal | Root Intrusion | — | Unpaved surface |
| Feb 6, 2016 | 45 gal | Root Intrusion | — | Street/Curb and Gutter |
| Feb 1, 2016 | 20 gal | Root Intrusion | — | Unpaved surface |
| Jan 12, 2016 | 126 gal | Root Intrusion | — | Unpaved surface |
| Jan 3, 2016 | 45 gal | Root Intrusion | — | Unpaved surface |
| Jan 1, 2016 | 24 gal | Root Intrusion | — | Unpaved surface |
| Dec 12, 2015 | 113 gal | Equipment Failure | — | Unpaved surface |
| Sep 20, 2015 | 170 gal | Equipment Failure | — | Unpaved surface |
| Aug 24, 2015 | 60 gal | Equipment Failure | — | Unpaved surface |
| Aug 22, 2015 | 120 gal | Root Intrusion | — | Unpaved surface |
| Jun 20, 2015 | 50 gal | Root Intrusion | Yes | Surface Water |
| Mar 7, 2015 | 225 gal | Equipment Failure | — | Unpaved surface |
| Mar 5, 2015 | 25 gal | Root Intrusion | — | Unpaved surface |
| Mar 1, 2015 | 25 gal | Root Intrusion | — | Unpaved surface |
| Jan 30, 2015 | 45 gal | Root Intrusion | — | Unpaved surface |
| Jan 24, 2015 | 245 gal | Root Intrusion | — | Unpaved surface |
| Sep 7, 2014 | 70 gal | Root Intrusion | — | Unpaved surface |
| Aug 26, 2014 | 20 gal | Root Intrusion | — | Unpaved surface |
| Aug 26, 2014 | 12 gal | Equipment Failure | — | Paved Surface |
| Mar 23, 2014 | 120 gal | Root Intrusion | Yes | Combined Storm Drain (Combined CS only) |
| Mar 12, 2014 | 25 gal | Root Intrusion | — | Street/Curb and Gutter |
| Mar 10, 2014 | 50 gal | Equipment Failure | — | Street/Curb and Gutter |
| Jan 22, 2014 | 15 gal | Root Intrusion | — | Unpaved surface |
| Jan 7, 2014 | 4 gal | Root Intrusion | — | Street/Curb and Gutter |
| Jan 6, 2014 | 75 gal | Root Intrusion | — | Drainage Channel |
| Jan 3, 2014 | 7 gal | Equipment Failure | — | Unpaved surface |
| Dec 27, 2013 | 25 gal | Root Intrusion | — | Unpaved surface |
| Dec 11, 2013 | 8 gal | Root Intrusion | — | Paved Surface |
| Dec 10, 2013 | 200 gal | Root Intrusion | — | Unpaved surface |
| Dec 1, 2013 | 90 gal | Root Intrusion | Yes | Drainage Channel |
| Nov 22, 2013 | 120 gal | Root Intrusion | — | Unpaved surface |
| Nov 21, 2013 | 30 gal | Root Intrusion | — | Unpaved surface |
| Nov 11, 2013 | 120 gal | Root Intrusion | Yes | Drainage Channel |
| Oct 3, 2013 | 130 gal | Equipment Failure | — | Unpaved surface |
| Sep 23, 2013 | 30 gal | Root Intrusion | — | Unpaved surface |
| Sep 17, 2013 | 60 gal | Root Intrusion | — | Other (specify below) |
| Aug 18, 2013 | 750 gal | Equipment Failure | Yes | Separate storm drain |
| Jul 30, 2013 | 25 gal | Root Intrusion | — | Street/curb and gutter |
| Jul 1, 2013 | 120 gal | Equipment Failure | — | Other paved surface |
| Jun 5, 2013 | 5 gal | Root Intrusion | — | Street/curb and gutter |
| Feb 21, 2013 | 60 gal | Root Intrusion | — | Other paved surface |
| Feb 15, 2013 | 48 gal | Equipment Failure | Yes | Separate storm drain |
| Feb 15, 2013 | 150 gal | Root Intrusion | Yes | Separate storm drain |
| Jan 16, 2013 | 200 gal | Other / Unknown | — | Unpaved surface |
| Jan 15, 2013 | 70 gal | Other / Unknown | — | Unpaved surface |
| Jan 11, 2013 | 75 gal | Root Intrusion | — | Other paved surface |
| Jan 9, 2013 | 7 gal | Root Intrusion | — | Other (specify below) |
| Dec 27, 2012 | 10K gal | Other / Unknown | Yes | Other paved surface;Street/curb and gutter;Unpaved surface;Other (specify below) |
| Dec 2, 2012 | 144 gal | Other / Unknown | — | Other (specify below) |
| Nov 28, 2012 | 12 gal | Root Intrusion | — | Street/curb and gutter |
| Nov 28, 2012 | 200 gal | Root Intrusion | — | Unpaved surface |
| Nov 1, 2012 | 20 gal | Root Intrusion | — | Unpaved surface |
| Apr 17, 2012 | 40 gal | Root Intrusion | — | Other paved surface |
| Mar 12, 2012 | 45 gal | Root Intrusion | — | Unpaved surface |
| Nov 20, 2011 | 270 gal | Grease / FOG | Yes | Other (specify below) |
| Nov 12, 2011 | 500 gal | Grease / FOG | Yes | Surface water |
| Jun 28, 2011 | 125 gal | Root Intrusion | Yes | Surface water |
| May 18, 2011 | 362 gal | Equipment Failure | — | Unpaved surface |
| May 9, 2011 | 115 gal | Root Intrusion | — | Unpaved surface |
| Apr 16, 2011 | 100 gal | Root Intrusion | — | Unpaved surface |
| Apr 12, 2011 | 180 gal | Equipment Failure | — | Unpaved surface |
| Apr 8, 2011 | 330 gal | Root Intrusion | Yes | Surface water |
| Dec 20, 2010 | 20 gal | Root Intrusion | — | Unpaved surface |
| Oct 26, 2010 | 60 gal | Root Intrusion | — | Unpaved surface |
| Oct 18, 2010 | 150 gal | Root Intrusion | — | Other paved surface |
| Apr 11, 2010 | 50 gal | Root Intrusion | — | Unpaved surface |
| Mar 9, 2010 | 19 gal | Root Intrusion | — | Other paved surface |
| Feb 23, 2010 | 45 gal | Root Intrusion | — | Street/curb and gutter |
| Feb 21, 2010 | 180 gal | Root Intrusion | — | Unpaved surface |
| Feb 19, 2010 | 25 gal | Root Intrusion | — | Unpaved surface |
| Feb 17, 2010 | 475 gal | Root Intrusion | Yes | Other (specify below) |
| Feb 10, 2010 | 215 gal | Root Intrusion | Yes | Storm drain |
| Jan 16, 2010 | 190 gal | Root Intrusion | — | Unpaved surface |
| Jan 10, 2010 | 100 gal | Root Intrusion | — | Unpaved surface |
| Oct 30, 2009 | 75 gal | Other / Unknown | Yes | Beach |
| Aug 24, 2009 | 70 gal | Root Intrusion | — | Unpaved surface |
| Aug 12, 2009 | 75 gal | Other / Unknown | — | Beach |
| Jul 28, 2009 | 108 gal | Root Intrusion | — | Other (specify below) |
| Jul 27, 2009 | 660 gal | Equipment Failure | — | Unpaved surface |
| Jul 14, 2009 | 100 gal | Root Intrusion | — | Unpaved surface |
| Jul 14, 2009 | 100 gal | Equipment Failure | — | Unpaved surface |
| Jun 27, 2009 | 3K gal | Root Intrusion | Yes | Separate storm drain |
| Jun 15, 2009 | 100 gal | Root Intrusion | — | Unpaved surface |
| May 29, 2009 | 120 gal | Root Intrusion | — | Unpaved surface |
| Apr 27, 2009 | 40 gal | Root Intrusion | — | Street/curb and gutter |
| Apr 2, 2009 | 750 gal | Root Intrusion | — | Unpaved surface |
| Dec 20, 2008 | 60 gal | Root Intrusion | — | Unpaved surface |
| Dec 17, 2008 | 50 gal | Root Intrusion | — | Unpaved surface |
| Dec 15, 2008 | 100 gal | Root Intrusion | Yes | Surface water;Unpaved surface |
| Nov 14, 2008 | 50 gal | Root Intrusion | — | Other (specify below) |
| Jul 16, 2008 | 70 gal | Root Intrusion | — | Unpaved surface |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.