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California · California (CIWQS)
Arcata City
D
Frequently reaches water
Reported events
143
Total volume
276K gal
Reached waterways
52 (36%)
Reporting since
2007
What caused the overflows
Equipment Failure
43
Other / Unknown
41
Root Intrusion
23
Grease / FOG
18
Capacity Issue
11
Rainfall / Flooding
7
Reported overflow events (showing 143 of 143)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Dec 21, 2025 | 96K gal | Capacity Issue | Yes | Janes Creek |
| Dec 21, 2025 | 9K gal | Capacity Issue | Yes | Fickle Hill Creek |
| Dec 21, 2025 | 58K gal | Equipment Failure | Yes | Humboldt Bay |
| Dec 21, 2025 | 9K gal | Capacity Issue | Yes | Fickle Hill Creek |
| Dec 29, 2024 | 2K gal | Capacity Issue | Yes | Brackish Marsh |
| Jan 13, 2024 | 1K gal | Rainfall / Flooding | Yes | Janes Creek |
| Jan 13, 2024 | 1K gal | Rainfall / Flooding | Yes | Janes Creek |
| Feb 1, 2023 | 35 gal | Root Intrusion | — | Street/Curb and Gutter;Unpaved surface |
| Oct 9, 2022 | 265 gal | Grease / FOG | — | Paved Surface;Separate Storm Drain |
| Sep 3, 2022 | 62 gal | Equipment Failure | — | Street/Curb and Gutter |
| Mar 26, 2022 | 110 gal | Grease / FOG | — | Paved Surface;Separate Storm Drain;Street/Curb and Gutter |
| Feb 10, 2021 | 10 gal | Other / Unknown | — | Building or Structure |
| Feb 10, 2021 | 4K gal | Equipment Failure | Yes | Surface Water |
| May 23, 2019 | 30 gal | Equipment Failure | — | Separate Storm Drain;Unpaved surface |
| Nov 4, 2018 | 115 gal | Root Intrusion | — | Unpaved surface |
| Sep 21, 2018 | 37 gal | Equipment Failure | — | Separate Storm Drain |
| Sep 10, 2018 | 29 gal | Equipment Failure | — | Building or Structure |
| Apr 13, 2018 | 11 gal | Equipment Failure | — | Street/Curb and Gutter |
| Mar 22, 2018 | 421 gal | Root Intrusion | Yes | Separate Storm Drain |
| Feb 21, 2018 | 32 gal | Equipment Failure | — | Paved Surface |
| Jul 21, 2017 | 150 gal | Equipment Failure | — | Unpaved surface |
| Jul 12, 2017 | 23 gal | Root Intrusion | — | Street/Curb and Gutter |
| Feb 7, 2017 | 7K gal | Grease / FOG | Yes | Separate Storm Drain |
| Jan 23, 2017 | 10 gal | Grease / FOG | — | Street/Curb and Gutter |
| Jan 16, 2017 | 63 gal | Root Intrusion | Yes | Separate Storm Drain;Surface Water |
| Dec 27, 2016 | 15 gal | Equipment Failure | — | Street/Curb and Gutter |
| Dec 22, 2016 | 3K gal | Equipment Failure | Yes | Drainage Channel |
| Oct 22, 2016 | 14 gal | Grease / FOG | — | Paved Surface |
| Jul 22, 2016 | 6 gal | Root Intrusion | — | Paved Surface;Unpaved surface |
| Jul 12, 2016 | 21 gal | Root Intrusion | Yes | Surface Water |
| Jan 17, 2016 | 2K gal | Capacity Issue | Yes | Other (specify below) |
| Dec 26, 2015 | 2 gal | Equipment Failure | — | Street/Curb and Gutter |
| Dec 18, 2015 | 55 gal | Equipment Failure | — | Unpaved surface |
| Nov 22, 2015 | 2 gal | Root Intrusion | — | Paved Surface |
| Oct 9, 2015 | 702 gal | Root Intrusion | — | Separate Storm Drain |
| Jul 6, 2015 | 1 gal | Root Intrusion | — | Paved Surface |
| Apr 7, 2015 | 30 gal | Other / Unknown | — | Building or Structure;Paved Surface;Unpaved surface |
| Mar 4, 2015 | 50 gal | Other / Unknown | — | Paved Surface;Unpaved surface |
| Jan 16, 2015 | 950 gal | Equipment Failure | Yes | Separate Storm Drain |
| Jan 7, 2015 | 15 gal | Equipment Failure | — | Unpaved surface |
| Dec 19, 2014 | 30 gal | Equipment Failure | — | Paved Surface |
| Nov 18, 2014 | 1K gal | Equipment Failure | — | Street/Curb and Gutter;Unpaved surface |
| Oct 7, 2014 | 480 gal | Other / Unknown | — | Street/Curb and Gutter |
| Sep 3, 2014 | 720 gal | Equipment Failure | — | Unpaved surface |
| Jul 9, 2014 | 650 gal | Equipment Failure | Yes | Surface Water |
| Jul 3, 2014 | 30 gal | Other / Unknown | — | Street/Curb and Gutter |
| Jun 24, 2014 | 54 gal | Root Intrusion | — | Drainage Channel;Paved Surface |
| Jun 13, 2014 | 300 gal | Equipment Failure | — | Unpaved surface |
| May 12, 2014 | 360 gal | Equipment Failure | Yes | Surface Water |
| May 7, 2014 | 60 gal | Capacity Issue | — | Other (specify below) |
| May 7, 2014 | 60 gal | Capacity Issue | — | Building or Structure |
| Apr 26, 2014 | 608 gal | Equipment Failure | — | Unpaved surface |
| Apr 24, 2014 | 15K gal | Equipment Failure | — | Other (specify below) |
| Mar 9, 2014 | 7K gal | Capacity Issue | Yes | Surface Water |
| Feb 25, 2014 | 3K gal | Other / Unknown | Yes | Surface Water;Unpaved surface |
| Feb 20, 2014 | 550 gal | Equipment Failure | Yes | Surface Water |
| Dec 27, 2013 | 40 gal | Equipment Failure | — | Unpaved surface |
| Dec 24, 2013 | 40 gal | Root Intrusion | — | Unpaved surface |
| Dec 22, 2013 | 746 gal | Root Intrusion | — | Unpaved surface |
| Dec 16, 2013 | 12 gal | Equipment Failure | — | Paved Surface |
| Dec 7, 2013 | 9K gal | Other / Unknown | Yes | Building or Structure;Drainage Channel;Surface Water;Unpaved surface |
| Dec 2, 2013 | 250 gal | Root Intrusion | — | Building or Structure;Other (specify below) |
| Nov 6, 2013 | 80 gal | Equipment Failure | — | Separate Storm Drain |
| Nov 3, 2013 | 125 gal | Equipment Failure | Yes | Separate Storm Drain |
| Oct 29, 2013 | 45 gal | Equipment Failure | — | Street/Curb and Gutter |
| Oct 13, 2013 | 1K gal | Equipment Failure | Yes | Other (specify below) |
| Sep 23, 2013 | 480 gal | Grease / FOG | Yes | Other (specify below) |
| Aug 22, 2013 | 1K gal | Other / Unknown | Yes | Separate storm drain |
| Feb 2, 2013 | 45 gal | Other / Unknown | — | Street/curb and gutter |
| Jan 30, 2013 | 30 gal | Other / Unknown | — | Street/curb and gutter |
| Dec 2, 2012 | 10 gal | Equipment Failure | Yes | Surface water |
| Dec 2, 2012 | 50 gal | Equipment Failure | Yes | Surface water |
| Jun 17, 2012 | 8 gal | Other / Unknown | — | Street/curb and gutter |
| Apr 4, 2012 | 20 gal | Other / Unknown | — | Unpaved surface |
| Apr 1, 2012 | 7K gal | Other / Unknown | Yes | Surface water |
| Mar 30, 2012 | 60 gal | Rainfall / Flooding | Yes | Unpaved surface |
| Mar 16, 2012 | 100 gal | Rainfall / Flooding | Yes | Unpaved surface |
| Jan 20, 2012 | 4K gal | Other / Unknown | Yes | Surface water |
| Jan 20, 2012 | 500 gal | Other / Unknown | Yes | Surface water |
| Jan 20, 2012 | 2K gal | Other / Unknown | Yes | Surface water |
| Jan 20, 2012 | 1K gal | Other / Unknown | Yes | Surface water |
| Jan 19, 2012 | 6K gal | Other / Unknown | Yes | Surface water |
| Jan 10, 2012 | 70 gal | Root Intrusion | — | Street/curb and gutter |
| Dec 9, 2011 | 20 gal | Other / Unknown | — | Other (specify below) |
| Dec 6, 2011 | 7 gal | Other / Unknown | — | Unpaved surface |
| Nov 8, 2011 | 2 gal | Other / Unknown | — | Street/curb and gutter |
| Sep 2, 2011 | 20 gal | Root Intrusion | — | Other (specify below) |
| Jun 16, 2011 | 1 gal | Other / Unknown | — | Unpaved surface |
| Mar 28, 2011 | 50 gal | Other / Unknown | — | Unpaved surface |
| Mar 25, 2011 | 2K gal | Other / Unknown | Yes | Surface water |
| Mar 25, 2011 | 1K gal | Rainfall / Flooding | Yes | Other (specify below) |
| Jan 9, 2011 | 1 gal | Other / Unknown | — | Other (specify below) |
| Dec 30, 2010 | 5 gal | Grease / FOG | Yes | Street/curb and gutter |
| Nov 7, 2010 | 1 gal | Other / Unknown | — | Other paved surface |
| Nov 3, 2010 | 900 gal | Grease / FOG | Yes | Other paved surface;Separate storm drain;Surface water |
| Oct 29, 2010 | 5 gal | Other / Unknown | — | Other paved surface |
| Oct 27, 2010 | 320 gal | Grease / FOG | Yes | Storm drain;Surface water |
| Oct 15, 2010 | 48 gal | Other / Unknown | Yes | Storm drain;Street/curb and gutter;Surface water |
| Aug 30, 2010 | 11 gal | Other / Unknown | — | Other (specify below) |
| Jul 31, 2010 | 900 gal | Grease / FOG | — | Unpaved surface;Other (specify below) |
| Jun 19, 2010 | 20 gal | Root Intrusion | — | Unpaved surface |
| Jun 18, 2010 | 80 gal | Root Intrusion | — | Unpaved surface |
| Jun 17, 2010 | 30 gal | Other / Unknown | — | Unpaved surface |
| Jun 10, 2010 | 33 gal | Grease / FOG | — | Separate Storm Drain |
| May 18, 2010 | 20 gal | Other / Unknown | — | Paved Surface |
| Apr 27, 2010 | 395 gal | Rainfall / Flooding | Yes | Drainage Channel |
| Apr 11, 2010 | 50 gal | Other / Unknown | Yes | Drainage Channel |
| Mar 27, 2010 | 1 gal | Equipment Failure | — | Paved Surface |
| Feb 9, 2010 | 7 gal | Other / Unknown | — | Other paved surface |
| Jan 3, 2010 | 20 gal | Grease / FOG | — | Street/curb and gutter |
| Jan 1, 2010 | 2K gal | Rainfall / Flooding | Yes | Surface water |
| Dec 28, 2009 | 11 gal | Other / Unknown | — | Other paved surface;Unpaved surface |
| Aug 5, 2009 | 2 gal | Grease / FOG | — | Paved Surface |
| Jul 30, 2009 | 10 gal | Grease / FOG | — | Street/curb and gutter |
| Jul 15, 2009 | 525 gal | Grease / FOG | — | Unpaved surface |
| Jun 1, 2009 | 10 gal | Other / Unknown | — | Paved Surface |
| May 27, 2009 | 1 gal | Other / Unknown | — | Other paved surface |
| May 26, 2009 | 10 gal | Other / Unknown | — | Storm drain |
| May 18, 2009 | 2 gal | Other / Unknown | — | Street/curb and gutter |
| Mar 24, 2009 | 20 gal | Root Intrusion | — | Unpaved surface;Other (specify below) |
| Mar 18, 2009 | 3 gal | Other / Unknown | — | Other paved surface |
| Feb 26, 2009 | 2K gal | Grease / FOG | Yes | Storm drain;Surface water |
| Feb 23, 2009 | 665 gal | Other / Unknown | — | Storm drain;Street/curb and gutter;Surface water |
| Jan 5, 2009 | 5 gal | Grease / FOG | Yes | Surface water |
| Dec 2, 2008 | 50 gal | Equipment Failure | Yes | Unpaved surface |
| Nov 16, 2008 | 2 gal | Equipment Failure | — | Street/curb and gutter |
| Aug 26, 2008 | 3 gal | Equipment Failure | — | Other paved surface;Street/curb and gutter |
| Aug 22, 2008 | 3 gal | Other / Unknown | — | Other paved surface |
| Aug 4, 2008 | 117 gal | Equipment Failure | Yes | Surface water |
| Jul 5, 2008 | 20 gal | Root Intrusion | — | Street/curb and gutter |
| Apr 30, 2008 | 3 gal | Equipment Failure | — | Street/curb and gutter |
| Mar 28, 2008 | 1 gal | Grease / FOG | — | Street/curb and gutter |
| Mar 15, 2008 | 2 gal | Equipment Failure | — | Unpaved surface;Street/curb and gutter |
| Jan 31, 2008 | 3K gal | Capacity Issue | Yes | Surface water |
| Jan 4, 2008 | 290 gal | Capacity Issue | Yes | Surface water |
| Dec 31, 2007 | 3 gal | Equipment Failure | — | Unpaved surface |
| Nov 26, 2007 | 15 gal | Root Intrusion | — | Other paved surface |
| Nov 5, 2007 | 3 gal | Equipment Failure | — | Street/curb and gutter |
| Oct 19, 2007 | 960 gal | Capacity Issue | Yes | Unpaved surface;Surface water |
| Oct 16, 2007 | 100 gal | Root Intrusion | — | Other (specify below) |
| Jun 5, 2007 | 6 gal | Equipment Failure | — | Unpaved surface |
| Jun 5, 2007 | 6 gal | Equipment Failure | — | Unpaved surface |
| May 9, 2007 | 50 gal | Root Intrusion | Yes | Storm drain |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.