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California · California (CIWQS)
Colton City
C
Often reaches water
Reported events
45
Total volume
189K gal
Reached waterways
7 (16%)
Reporting since
2007
What caused the overflows
Equipment Failure
17
Grease / FOG
15
Other / Unknown
9
Root Intrusion
3
Rainfall / Flooding
1
Reported overflow events (showing 45 of 45)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Apr 4, 2026 | 300 gal | Equipment Failure | — | — |
| Nov 5, 2025 | 500 gal | Grease / FOG | — | — |
| Jul 15, 2025 | 50 gal | Equipment Failure | — | — |
| Mar 24, 2025 | 50K gal | Equipment Failure | — | — |
| Oct 29, 2024 | 20 gal | Equipment Failure | — | Santa Ana River |
| Aug 31, 2024 | 100 gal | Other / Unknown | Yes | — |
| Aug 8, 2024 | 50 gal | Equipment Failure | — | — |
| Dec 17, 2023 | 50 gal | Grease / FOG | — | — |
| Nov 27, 2023 | 200 gal | Grease / FOG | — | — |
| Mar 29, 2023 | 300 gal | Equipment Failure | — | Drainage Channel;Unpaved surface |
| Mar 23, 2023 | 10 gal | Grease / FOG | — | Street/Curb and Gutter |
| Feb 11, 2023 | 300 gal | Grease / FOG | — | Unpaved surface |
| Jan 2, 2023 | 5 gal | Root Intrusion | — | Other (specify below) |
| Dec 17, 2022 | 200 gal | Equipment Failure | — | Drainage Channel |
| Dec 17, 2022 | 200 gal | Equipment Failure | Yes | Combined Storm Drain (Combined CS only);Drainage Channel |
| Feb 2, 2022 | 250 gal | Equipment Failure | Yes | Drainage Channel |
| Oct 27, 2020 | 50 gal | Equipment Failure | — | Paved Surface |
| Oct 12, 2020 | 800 gal | Grease / FOG | — | Unpaved surface |
| Sep 27, 2020 | 400 gal | Grease / FOG | — | Street/Curb and Gutter;Unpaved surface |
| Jan 15, 2019 | 100 gal | Equipment Failure | — | Unpaved surface |
| Nov 25, 2017 | 300 gal | Equipment Failure | — | Drainage Channel;Street/Curb and Gutter |
| Nov 25, 2017 | 300 gal | Equipment Failure | — | Drainage Channel;Street/Curb and Gutter |
| Jul 6, 2017 | 800 gal | Root Intrusion | — | Drainage Channel |
| Apr 26, 2016 | 100 gal | Equipment Failure | Yes | Drainage Channel;Unpaved surface |
| Sep 15, 2015 | 500 gal | Rainfall / Flooding | — | Street/Curb and Gutter;Unpaved surface |
| Jun 23, 2015 | 9K gal | Equipment Failure | — | Drainage Channel;Street/Curb and Gutter;Unpaved surface |
| Feb 18, 2015 | 500 gal | Grease / FOG | — | Paved Surface;Unpaved surface |
| Aug 31, 2014 | 6K gal | Grease / FOG | Yes | Drainage Channel |
| Apr 9, 2012 | 75K gal | Other / Unknown | — | Separate storm drain |
| Dec 8, 2011 | 3K gal | Other / Unknown | — | Unpaved surface |
| Jan 23, 2011 | 3K gal | Grease / FOG | — | Unpaved surface |
| Jan 15, 2011 | 200 gal | Other / Unknown | — | Combined storm drain (combined CS only) |
| Mar 31, 2010 | 23K gal | Other / Unknown | — | Storm drain |
| Mar 22, 2010 | 250 gal | Grease / FOG | — | Other (specify below) |
| Jan 21, 2010 | 11K gal | Other / Unknown | Yes | Street/curb and gutter |
| Jul 11, 2009 | 1K gal | Other / Unknown | Yes | Unpaved surface |
| Aug 30, 2008 | 25 gal | Grease / FOG | — | Street/curb and gutter |
| Mar 10, 2008 | 25 gal | Grease / FOG | — | Other paved surface |
| Dec 29, 2007 | 300 gal | Grease / FOG | — | Other paved surface |
| Jun 26, 2007 | 400 gal | Other / Unknown | — | Other (specify below) |
| Jun 26, 2007 | 50 gal | Other / Unknown | — | Other paved surface |
| Mar 13, 2007 | 150 gal | Equipment Failure | — | Other paved surface |
| Mar 13, 2007 | 150 gal | Equipment Failure | — | Street/curb and gutter |
| Mar 3, 2007 | 50 gal | Grease / FOG | — | Street/curb and gutter |
| Feb 7, 2007 | 450 gal | Root Intrusion | — | Other paved surface |
Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.