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California · California (CIWQS)

Los Angeles City Bureau of Sanitation

B
Seldom reaches water
Reported events
2,167
Total volume
15.4M gal
Reached waterways
150 (7%)
Reporting since
2007

What caused the overflows

Root Intrusion
555
Equipment Failure
236
Grease / FOG
166
Other / Unknown
35
Capacity Issue
7
Rainfall / Flooding
1

Reported overflow events (showing 200 of 2,167)

DateVolumeCauseReached waterReceiving water
Jun 26, 2026158 galRoot Intrusion——
Jun 18, 202677 galRoot Intrusion——
Jun 10, 2026142 galRoot Intrusion——
Jun 1, 2026786 galOther / Unknown——
May 9, 2026129 galEquipment Failure——
May 8, 2026682 galEquipment Failure——
May 8, 202692 galRoot Intrusion——
Apr 16, 2026142 galGrease / FOG——
Apr 16, 2026313 galEquipment Failure——
Apr 11, 2026178 galRoot Intrusion——
Apr 8, 2026126 galGrease / FOG——
Apr 6, 202666 galOther / Unknown——
Apr 3, 2026122 galEquipment Failure——
Mar 21, 202660 galRoot Intrusion——
Mar 13, 202681 galEquipment Failure——
Feb 18, 202692 galRoot Intrusion——
Feb 6, 2026201 galRoot Intrusion——
Feb 4, 2026476 galGrease / FOG——
Feb 2, 2026118 galGrease / FOG——
Jan 28, 2026272 galEquipment Failure——
Jan 20, 202694 galGrease / FOG——
Jan 17, 202698 galEquipment Failure——
Jan 9, 2026224 galRoot Intrusion——
Jan 3, 202663 galEquipment Failure——
Jan 2, 2026327 galGrease / FOG——
Jan 1, 202650 galEquipment Failure——
Dec 24, 202511K galCapacity IssueYesThe Los Aneles River
Dec 23, 2025173 galRoot Intrusion——
Dec 17, 2025940 galEquipment Failure——
Dec 11, 202592 galRoot Intrusion——
Dec 11, 2025309 galRoot Intrusion——
Nov 29, 2025166 galRoot Intrusion——
Nov 7, 20252K galRoot Intrusion——
Nov 6, 2025719 galRoot Intrusion——
Nov 4, 2025606 galGrease / FOG——
Oct 29, 2025196 galRoot Intrusion——
Oct 16, 202590 galRoot Intrusion——
Oct 15, 202583 galEquipment Failure——
Sep 28, 2025108 galEquipment Failure——
Sep 28, 202595 galRoot Intrusion——
Sep 18, 202550 galRoot Intrusion——
Sep 15, 202588 galRoot Intrusion——
Sep 6, 2025126 galRoot Intrusion——
Sep 6, 2025264 galGrease / FOG——
Sep 1, 2025973 galGrease / FOG——
Aug 28, 2025830 galEquipment Failure——
Aug 27, 2025325 galRoot Intrusion——
Aug 20, 20254K galGrease / FOG——
Jul 26, 20254K galGrease / FOG——
Jul 19, 2025720 galRoot Intrusion——
Jul 1, 2025766 galEquipment Failure——
Jun 25, 2025152 galRoot Intrusion——
Jun 23, 2025265 galRoot Intrusion——
Jun 19, 2025277 galEquipment Failure——
May 31, 202512K galEquipment Failure——
May 28, 202584 galEquipment Failure——
May 26, 2025712 galRoot Intrusion——
May 18, 2025743 galEquipment FailureYesLos Angeles River.
May 9, 2025305 galEquipment Failure——
May 5, 20252K galGrease / FOG——
Apr 25, 2025102 galRoot Intrusion——
Apr 13, 2025146 galRoot Intrusion——
Mar 20, 2025126 galRoot Intrusion——
Mar 18, 2025653 galRoot Intrusion——
Mar 13, 2025108 galEquipment Failure——
Mar 1, 2025748 galOther / Unknown——
Feb 27, 20254K galGrease / FOG——
Feb 27, 202567 galEquipment Failure——
Feb 14, 202579 galGrease / FOG——
Feb 10, 20252K galOther / Unknown——
Feb 9, 2025362 galGrease / FOG——
Feb 8, 2025162 galRoot Intrusion——
Feb 4, 202575K galEquipment Failure——
Jan 25, 2025691 galRoot Intrusion——
Jan 24, 2025376 galRoot Intrusion——
Jan 20, 20252K galGrease / FOG——
Jan 17, 2025216 galRoot Intrusion——
Jan 12, 2025101 galRoot Intrusion——
Jan 6, 20251K galGrease / FOG——
Dec 21, 2024173 galRoot Intrusion——
Nov 29, 2024338 galRoot Intrusion——
Oct 23, 2024116 galRoot Intrusion——
Sep 27, 2024118 galEquipment Failure——
Sep 26, 2024104 galEquipment Failure——
Aug 30, 2024132 galRoot Intrusion——
Aug 29, 20246K galRoot IntrusionYesPacific Ocean
Aug 24, 2024333 galRoot Intrusion——
Jul 30, 202487 galRoot Intrusion——
Jul 26, 2024114 galEquipment Failure——
Jul 24, 2024748 galEquipment Failure——
Jul 20, 202416K galEquipment FailureYesBallona Creek
Jun 27, 202486 galEquipment Failure——
Jun 15, 202412K galOther / Unknown——
Jun 6, 2024997 galRoot Intrusion——
Jun 1, 202424K galGrease / FOG——
May 22, 202454 galEquipment Failure——
May 19, 2024259 galRoot IntrusionYesPacific Ocean
May 17, 2024359 galRoot Intrusion——
May 8, 202497 galRoot Intrusion——
Apr 8, 2024141 galRoot Intrusion——
Apr 5, 2024152 galGrease / FOG——
Apr 4, 2024448 galRoot IntrusionYesBallona Creek
Mar 23, 2024370 galRoot Intrusion——
Mar 7, 202479 galGrease / FOG——
Feb 28, 2024647 galRoot Intrusion——
Feb 25, 2024219 galRoot Intrusion——
Feb 12, 2024935 galGrease / FOG——
Feb 12, 2024120 galRoot Intrusion——
Feb 10, 2024108 galRoot Intrusion——
Feb 8, 2024110 galRoot Intrusion——
Feb 7, 2024856 galEquipment Failure——
Feb 6, 202459 galEquipment Failure——
Jan 24, 2024106 galRoot Intrusion——
Jan 24, 2024121 galRoot Intrusion——
Jan 23, 2024196 galRoot Intrusion——
Jan 13, 202490 galGrease / FOG——
Jan 12, 2024121 galRoot Intrusion——
Jan 10, 2024476 galGrease / FOG——
Jan 5, 2024173 galEquipment Failure——
Dec 26, 202364 galRoot Intrusion——
Dec 26, 202388 galGrease / FOG——
Dec 26, 2023247 galEquipment Failure——
Dec 24, 2023359 galRoot Intrusion——
Dec 15, 202365 galEquipment Failure——
Dec 12, 2023646 galOther / Unknown——
Dec 4, 2023185 galRoot Intrusion——
Nov 30, 2023677 galGrease / FOG——
Nov 20, 202370 galGrease / FOG——
Nov 10, 202360 galRoot Intrusion——
Nov 3, 2023518 galGrease / FOG——
Oct 14, 2023169 galEquipment Failure——
Oct 10, 2023150 galEquipment Failure——
Oct 2, 2023262 galEquipment Failure——
Sep 29, 202386 galEquipment Failure——
Sep 12, 2023319 galRoot Intrusion——
Sep 5, 202391 galRoot Intrusion——
Sep 2, 20233K galGrease / FOG——
Sep 1, 2023656 galRoot IntrusionYesBallona Creek
Aug 29, 2023367 galRoot Intrusion——
Aug 26, 2023905 galRoot Intrusion——
Aug 21, 20231K galRoot Intrusion——
Aug 20, 2023470 galCapacity Issue——
Aug 16, 2023187 galRoot Intrusion——
Aug 15, 2023768 galRoot Intrusion——
Jul 28, 2023144 galRoot Intrusion——
Jul 8, 2023229 galEquipment Failure——
Jul 5, 2023576 galEquipment FailureYesBallona Creek
Jul 5, 2023400 galEquipment Failure——
Jun 30, 2023129 galGrease / FOG——
Jun 21, 2023282 galEquipment Failure——
Jun 19, 20232K galEquipment Failure——
Jun 14, 2023990 galRoot Intrusion——
Jun 9, 2023279 galRoot Intrusion——
Jun 2, 2023114 galRoot Intrusion—Other (specify below)
Jun 1, 202385 galOther / Unknown—Other (specify below)
Jun 1, 2023152 galGrease / FOG—Other (specify below)
May 30, 202363 galEquipment Failure—Other (specify below)
May 28, 2023284 galGrease / FOG—Other (specify below)
May 26, 2023136 galRoot Intrusion—Other (specify below)
May 20, 202392 galRoot Intrusion—Other (specify below)
May 16, 2023132 galRoot Intrusion—Other (specify below)
May 16, 2023411 galEquipment Failure—Other (specify below)
Apr 28, 202320 galRoot Intrusion—Other (specify below)
Apr 26, 20239 galRoot Intrusion—Other (specify below)
Apr 24, 2023370 galGrease / FOG—Other (specify below)
Apr 21, 202314 galEquipment Failure—Other (specify below)
Apr 18, 202345 galRoot Intrusion—Other (specify below)
Apr 16, 2023224 galRoot Intrusion—Other (specify below)
Apr 15, 2023116 galEquipment Failure—Other (specify below)
Apr 14, 202376 galRoot Intrusion—Other (specify below)
Apr 12, 2023214 galRoot Intrusion—Other (specify below)
Apr 7, 20232K galEquipment Failure—Other (specify below)
Apr 6, 2023122 galRoot Intrusion—Other (specify below)
Apr 4, 202319 galRoot Intrusion—Other (specify below)
Mar 30, 20234 galRoot Intrusion—Other (specify below)
Mar 29, 20232 galRoot Intrusion—Other (specify below)
Mar 27, 202313 galRoot Intrusion—Other (specify below)
Mar 27, 2023822 galEquipment Failure—Other (specify below)
Mar 19, 20234K galRoot IntrusionYesSurface Water
Mar 16, 2023696 galOther / Unknown—Other (specify below)
Mar 15, 2023273 galRoot Intrusion—Other (specify below)
Mar 15, 2023935 galGrease / FOG—Other (specify below)
Mar 14, 2023224 galRoot Intrusion—Other (specify below)
Mar 7, 202398 galRoot Intrusion—Other (specify below)
Mar 5, 20234K galGrease / FOG—Other (specify below)
Mar 5, 2023315 galEquipment Failure—Other (specify below)
Mar 2, 202335 galRoot Intrusion—Unpaved surface
Feb 28, 202375 galGrease / FOG—Other (specify below)
Feb 28, 2023564 galEquipment FailureYesOther (specify below)
Feb 26, 202358 galRoot Intrusion—Other (specify below)
Feb 25, 2023249 galEquipment Failure—Other (specify below)
Feb 24, 202311 galOther / UnknownYesOther (specify below)
Feb 23, 202355 galRoot Intrusion—Other (specify below)
Feb 13, 202395 galRoot Intrusion—Unpaved surface
Feb 12, 202361 galRoot Intrusion—Other (specify below)
Feb 10, 2023813 galRoot Intrusion—Other (specify below)
Feb 9, 2023900 galRoot Intrusion—Other (specify below)
Feb 7, 2023340 galRoot Intrusion—Other (specify below)
Feb 4, 2023240 galRoot Intrusion—Other (specify below)
Feb 2, 202335 galRoot Intrusion—Other (specify below)

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