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California · California (CIWQS)

Sacramento City

A
Rarely reaches water
Reported events
687
Total volume
296K gal
Reached waterways
13 (2%)
Reporting since
2007

What caused the overflows

Grease / FOG
322
Root Intrusion
244
Other / Unknown
68
Equipment Failure
51
Rainfall / Flooding
1
Capacity Issue
1

Reported overflow events (showing 200 of 687)

DateVolumeCauseReached waterReceiving water
Apr 10, 2026175 galGrease / FOG——
Mar 7, 2026429 galRoot Intrusion——
Feb 15, 2026573 galRoot Intrusion——
Dec 19, 2025115 galGrease / FOG——
Dec 15, 2025410 galGrease / FOG——
Mar 9, 202582 galRoot Intrusion——
Jan 21, 2025739 galRoot Intrusion——
Jan 14, 202583 galEquipment Failure——
Dec 29, 20243K galGrease / FOG——
Oct 10, 202463 galGrease / FOG——
Sep 22, 2024360 galGrease / FOG——
Sep 2, 2024360 galGrease / FOG——
Aug 12, 2024430 galRoot Intrusion——
Jul 8, 20241K galOther / Unknown——
Jun 4, 2024332 galOther / Unknown——
May 18, 2024336 galEquipment Failure——
Apr 22, 2024158 galRoot Intrusion——
Apr 12, 2024111 galRoot Intrusion——
Feb 14, 2024825 galEquipment Failure——
Feb 10, 202490 galRoot Intrusion——
Jan 21, 2024148 galGrease / FOG——
Dec 28, 2023129 galEquipment Failure——
Dec 26, 2023448 galRoot Intrusion——
Dec 18, 2023132 galRoot Intrusion——
Dec 10, 20233K galRoot Intrusion——
Sep 21, 2023452 galEquipment Failure——
May 27, 20232K galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
May 15, 2023124 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 8, 2023216 galRoot Intrusion—Building or Structure;Paved Surface;Street/Curb and Gutter;Unpaved surface
Mar 31, 2023131 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 13, 2023127 galRoot Intrusion—Paved Surface;Street/Curb and Gutter;Unpaved surface
Mar 9, 2023168 galGrease / FOG—Paved Surface;Unpaved surface
Mar 5, 202352 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Mar 5, 20237K galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 22, 20233 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Jan 20, 20239K galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved surface
Dec 26, 20226K galRoot IntrusionYesBuilding or Structure;Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Dec 24, 202222 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Dec 16, 202211 galRoot Intrusion—Paved Surface;Unpaved surface
Dec 7, 202292 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 20, 2022144 galRoot Intrusion—Unpaved surface
Oct 16, 2022835 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 23, 2022126 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved surface
Aug 4, 202241 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 2, 202273 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jul 26, 2022727 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved surface
Jul 7, 202223K galGrease / FOG—Building or Structure;Drainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jun 30, 20226K galEquipment Failure—Other (specify below);Separate Storm Drain;Unpaved surface
Jun 19, 2022198 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 19, 202210K galGrease / FOG—Drainage Channel;Separate Storm Drain;Street/Curb and Gutter
May 29, 2022247 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
May 25, 20226 galEquipment Failure—Paved Surface
May 14, 20222K galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 26, 20224 galRoot Intrusion—Unpaved surface
Apr 18, 202234 galRoot Intrusion—Building or Structure;Unpaved surface
Mar 24, 2022188 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 9, 2022722 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Mar 6, 202260 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 3, 20228 galEquipment Failure—Paved Surface
Feb 24, 202227 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 18, 2022240 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 7, 20228 galEquipment Failure—Unpaved surface
Jan 7, 202219K galEquipment Failure—Other (specify below)
Jan 5, 202248 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Dec 30, 2021138 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Dec 28, 20211K galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Dec 23, 20217K galRoot IntrusionYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Dec 16, 2021715 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 23, 202122 galEquipment Failure—Unpaved surface
Nov 19, 202161 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Nov 12, 2021434 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 3, 202122 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 31, 202185 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Sep 14, 202157 galRoot Intrusion—Unpaved surface
Aug 20, 2021836 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 17, 202125K galGrease / FOGYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Mar 15, 202160 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 8, 20212K galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 26, 20211K galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 5, 2021203 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jan 10, 2021194 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 8, 2021303 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 2, 20212K galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 24, 20201K galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 18, 202018 galRoot Intrusion—Unpaved surface
Aug 1, 202034K galRoot Intrusion—Paved Surface;Separate Storm Drain;Unpaved surface
Jul 23, 202018 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 14, 2020605 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 11, 2020655 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 31, 2020247 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Mar 26, 202017 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Mar 16, 202065 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 14, 2020298 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 4, 202031 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jan 16, 202056 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 27, 201921K galEquipment FailureYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Dec 9, 201952 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Nov 29, 20194 galRoot Intrusion—Unpaved surface
Nov 24, 201944 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Nov 14, 201961 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 27, 20199 galOther / Unknown—Unpaved surface
Oct 26, 201959 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Sep 25, 201964 galRoot Intrusion—Other (specify below);Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Sep 5, 2019131 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 27, 20195K galEquipment Failure—Other (specify below)
Jun 7, 201985 galEquipment Failure—Building or Structure;Paved Surface;Street/Curb and Gutter;Unpaved surface
May 24, 20194 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 3, 201920 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Mar 17, 201941 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 16, 2019676 galOther / UnknownYesOther (specify below);Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 9, 20191K galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 7, 201913 galRoot Intrusion—Street/Curb and Gutter
Dec 30, 20182K galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 26, 20187 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 2, 20181K galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 30, 20186K galEquipment FailureYesDrainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Nov 20, 20186 galRoot Intrusion—Paved Surface;Street/Curb and Gutter;Unpaved surface
Nov 1, 20188 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 30, 201816 galOther / Unknown—Paved Surface;Street/Curb and Gutter
Sep 22, 20181K galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 3, 2018915 galRoot Intrusion—Unpaved surface
Jul 22, 201820 galOther / Unknown—Unpaved surface
Jul 20, 20184 galEquipment Failure—Paved Surface
Jun 15, 20188 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Jun 8, 2018330 galOther / UnknownYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Apr 11, 201811 galRoot Intrusion—Other (specify below);Unpaved surface
Mar 23, 2018375 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Mar 10, 2018375 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 11, 20181K galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jan 28, 2018392 galGrease / FOG—Unpaved surface
Jan 6, 2018305 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 6, 2018750 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 5, 2017375 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Dec 1, 201720 galGrease / FOG—Unpaved surface
Nov 18, 201790 galRoot Intrusion—Building or Structure
Nov 3, 201791 galOther / Unknown—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 28, 2017404 galRoot Intrusion—Paved Surface;Separate Storm Drain
Oct 5, 20172K galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Sep 20, 2017240 galOther / UnknownYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Sep 19, 20176 galOther / Unknown—Paved Surface;Street/Curb and Gutter;Unpaved surface
Aug 20, 201716 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 11, 2017133 galRoot Intrusion—Paved Surface;Street/Curb and Gutter;Unpaved surface
Mar 30, 201724 galRoot Intrusion—Unpaved surface
Mar 3, 2017117 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Jan 13, 201724 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jan 11, 20175K galRainfall / FloodingYesDrainage Channel;Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water;Unpaved surface
Nov 30, 2016908 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 24, 201637 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Nov 21, 201666 galGrease / FOG—Other (specify below);Paved Surface;Street/Curb and Gutter
Nov 14, 20162K galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 11, 20162 galGrease / FOG—Paved Surface;Unpaved surface
Oct 31, 201667 galGrease / FOG—Unpaved surface
Oct 25, 201689 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Sep 6, 201685 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Aug 28, 2016484 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jul 9, 20162 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Jun 25, 20169 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 2, 2016916 galGrease / FOG—Building or Structure
Mar 18, 20162 galRoot Intrusion—Paved Surface;Street/Curb and Gutter
Mar 9, 201610 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 18, 20164 galGrease / FOG—Paved Surface;Street/Curb and Gutter
Feb 14, 201622 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 6, 2016191 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Jan 5, 2016668 galEquipment Failure—Building or Structure;Paved Surface
Nov 17, 201536 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Nov 10, 20155 galRoot Intrusion—Building or Structure
Oct 8, 20158 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Sep 24, 20154 galEquipment Failure—Street/Curb and Gutter
Sep 23, 20159 galGrease / FOG—Drainage Channel;Separate Storm Drain
Aug 17, 20159 galGrease / FOG—Unpaved surface
Jun 30, 20156 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 21, 201515 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 7, 2015128 galGrease / FOG—Street/Curb and Gutter;Unpaved surface
Jun 3, 2015127 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 28, 201548 galEquipment Failure—Street/Curb and Gutter
Mar 23, 2015150 galOther / Unknown—Building or Structure
Mar 15, 20155 galRoot Intrusion—Unpaved surface
Mar 11, 201585 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 17, 201510 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Feb 13, 201515 galGrease / FOG—Unpaved surface
Feb 10, 20154 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 23, 201515 galEquipment Failure—Unpaved surface
Jan 13, 2015212 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 11, 201528 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Nov 19, 20143 galOther / Unknown—Building or Structure
Nov 17, 201412 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 29, 201423 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Oct 23, 2014334 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter;Unpaved surface
Jul 14, 201462 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Jun 19, 201419 galGrease / FOG—Unpaved surface
Jun 15, 2014115 galRoot Intrusion—Street/Curb and Gutter
Jun 3, 20143 galEquipment Failure—Paved Surface
May 11, 201417 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 9, 201413 galRoot Intrusion—Separate Storm Drain;Street/Curb and Gutter
Apr 1, 201438 galGrease / FOGYesDrainage Channel;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Mar 28, 201452 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Feb 22, 20143 galRoot Intrusion—Unpaved surface
Feb 18, 201421 galGrease / FOG—Separate Storm Drain;Street/Curb and Gutter
Feb 5, 201418 galEquipment Failure—Building or Structure;Unpaved surface
Feb 3, 201435 galEquipment Failure—Unpaved surface

Source: California (CIWQS). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.