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California · California (CIWQS)

Oakland City DPW

C
Often reaches water
Reported events
2,157
Total volume
6.3M gal
Reached waterways
487 (23%)
Reporting since
2007

What caused the overflows

Equipment Failure
348
Root Intrusion
311
Grease / FOG
255
Other / Unknown
52
Capacity Issue
19
Rainfall / Flooding
15

Reported overflow events (showing 200 of 2,157)

DateVolumeCauseReached waterReceiving water
Jun 7, 202693 galRoot Intrusion——
May 30, 20262K galRoot IntrusionYesWildwood and Trestle Glen Creek
May 2, 20262K galOther / UnknownYesLion creek, Arroyo Viejo creek
Apr 28, 2026147 galGrease / FOGYesSausal Creek
Apr 24, 20263K galRoot IntrusionYesTemescal Lake
Apr 17, 2026129 galGrease / FOG——
Apr 17, 2026129 galOther / Unknown——
Apr 13, 2026384 galOther / UnknownYesPleasant Valley Creek
Apr 7, 202698 galRoot Intrusion——
Mar 16, 20261K galGrease / FOG——
Mar 10, 20261K galGrease / FOGYesArroyo Viejo Creek, Lion Creek
Mar 8, 2026163 galEquipment Failure——
Feb 26, 2026179 galEquipment Failure——
Feb 17, 20261K galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Feb 12, 2026112 galRoot Intrusion——
Feb 8, 202664 galRoot Intrusion——
Feb 6, 202667 galGrease / FOG——
Feb 5, 202663 galRoot Intrusion——
Jan 31, 20267K galGrease / FOG——
Jan 30, 20266K galGrease / FOGYes14th Avenue, San Antonio creek to Estuary.
Jan 27, 20264K galOther / UnknownYesLion creek, Arroyo Viejo creek, and Damon Slough
Jan 24, 202640 galGrease / FOGYesLion creek, Arroyo Viejo creek, and Damon Slough
Jan 18, 2026245 galGrease / FOG——
Jan 15, 2026147 galGrease / FOG——
Jan 11, 2026488 galGrease / FOGYesCourtland Creek
Jan 6, 20261K galGrease / FOGYesElmhurst creek. (Tidal creek).
Jan 6, 2026130 galGrease / FOG——
Jan 4, 202691 galEquipment Failure——
Jan 1, 20264K galEquipment FailureYes14th Avenue, San Antonio creek to Estuary.
Dec 22, 202513K galRoot IntrusionYesWildwood and Trestle Glen Creek
Dec 22, 2025317 galRainfall / FloodingYesSausal Creek
Dec 18, 2025232 galEquipment Failure——
Dec 15, 202560 galRoot IntrusionYesTemescal Creek
Dec 12, 20258K galRoot IntrusionYesTemescal Creek
Dec 11, 2025461 galEquipment FailureYes Arroyo Viejo creek
Dec 9, 2025690 galRoot IntrusionYesTemescal Creek
Dec 5, 202595 galEquipment Failure——
Dec 4, 2025421 galOther / UnknownYesTemescal Creek
Nov 28, 2025631 galRoot Intrusion——
Nov 24, 20257K galEquipment FailureYesLake Temescal
Nov 21, 2025345 galGrease / FOG——
Nov 19, 2025123 galRoot Intrusion——
Nov 9, 2025316 galRoot Intrusion——
Nov 2, 2025252 galRoot IntrusionYesTemescal Creek
Oct 17, 2025126 galRoot Intrusion——
Oct 8, 2025206 galGrease / FOG——
Oct 7, 20251K galEquipment Failure——
Sep 22, 20251K galRoot IntrusionYesSausal Creek
Sep 16, 2025333 galEquipment Failure——
Sep 13, 2025993 galRoot IntrusionYesGlen Echo Creek
Sep 12, 202520K galRoot IntrusionYesTemescal Creek
Sep 9, 202577 galEquipment Failure——
Aug 24, 202513K galGrease / FOGYesDry Creek Bed, Arroyo Viejo
Aug 3, 202599 galEquipment Failure——
Jul 21, 2025101 galRoot Intrusion——
Jul 19, 2025436 galEquipment Failure——
Jul 9, 20252K galOther / UnknownYesLion creek, Arroyo Viejo creek, and Damon Slough
Jul 2, 2025954 galGrease / FOGYes14th Avenue, San Antonio creek to Estuary.
Jun 5, 2025160 galRoot Intrusion——
Jun 4, 202574 galEquipment FailureYesWildwood and Trestle Glen Creek
Jun 3, 2025190 galEquipment Failure—Sausal Creek
May 18, 202560 galGrease / FOGYesLake Merritt
May 2, 2025645 galRoot IntrusionYesSan Francisco Bay
Apr 27, 202510K galRoot IntrusionYesArroyo Viejo Creek
Mar 18, 20252K galRoot IntrusionYesLake Merritt
Mar 4, 202553 galGrease / FOG——
Feb 25, 2025328 galGrease / FOG——
Feb 18, 2025619 galRoot Intrusion——
Feb 17, 2025316 galGrease / FOG——
Feb 16, 20254K galOther / Unknown——
Feb 14, 2025420 galEquipment Failure——
Feb 13, 20251K galGrease / FOGYesArroyo Viejo Creek
Feb 13, 2025920 galOther / UnknownYesLion Creek
Feb 13, 202511K galOther / UnknownYesSausal Creek
Feb 4, 2025750 galEquipment FailureYesWildwood and Trestle Glen Creek
Jan 16, 2025306 galEquipment Failure——
Jan 5, 2025153 galRoot Intrusion——
Dec 30, 20242K galGrease / FOGYes14th Avenue, San Antonio creek to Lake Merritt.
Dec 29, 202415K galRoot IntrusionYesLion creek, Arroyo Viejo creek
Dec 24, 2024597 galRoot IntrusionYesArroyo Viejo Creek
Dec 24, 20241K galRoot Intrusion——
Dec 24, 2024469 galEquipment Failure——
Dec 24, 20246K galGrease / FOGYesSausal Creek
Dec 19, 2024800 galRoot IntrusionYesSan Leandro creek
Dec 12, 2024157 galEquipment Failure——
Dec 9, 2024162 galRoot Intrusion——
Dec 7, 2024384 galGrease / FOGYes14th Avenue, San Antonio creek to Estuary.
Dec 2, 202486 galEquipment Failure——
Dec 2, 2024640 galRoot IntrusionYesTemescal Creek, and Lake Temescal
Nov 27, 2024478 galGrease / FOG——
Nov 22, 202454 galRoot Intrusion——
Nov 19, 202479 galEquipment FailureYesSan Antonio Creek
Nov 16, 2024477 galGrease / FOGYesSausal Creek
Nov 13, 20243K galGrease / FOGYesSausal Creek
Nov 11, 20249K galEquipment FailureYesSan Leandro creek
Nov 9, 2024166 galRoot Intrusion——
Nov 1, 20245K galRoot IntrusionYesTemescal Creek, and Lake Temescal
Nov 1, 2024188 galGrease / FOGYesLake Merritt
Oct 30, 2024451 galRoot Intrusion——
Oct 18, 2024225 galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Oct 4, 2024274 galRoot Intrusion——
Oct 1, 2024479 galRoot IntrusionYesTemescal Creek
Sep 29, 2024300 galRoot IntrusionYesArroyo Viejo Creek
Sep 28, 2024219 galGrease / FOGYesArroyo Viejo Creek
Sep 18, 2024184 galGrease / FOG——
Sep 13, 2024127 galGrease / FOG——
Aug 25, 2024232 galEquipment FailureYesWildwood and Trestle Glen Creek
Aug 19, 2024238 galGrease / FOGYes14th Avenue Creek & San Antonio
Aug 8, 20249K galEquipment FailureYesArroyo Viejo Creek
Jul 30, 2024283 galRoot Intrusion——
Jul 25, 202484 galRoot Intrusion——
Jul 21, 202474 galRoot Intrusion——
Jul 12, 2024127 galRoot Intrusion——
Jul 7, 20243K galGrease / FOG——
Jun 29, 2024103 galRoot Intrusion——
Jun 28, 2024189 galEquipment Failure——
Jun 18, 2024120 galEquipment FailureYesSausal creek
Jun 3, 2024244 galRoot Intrusion——
May 31, 2024655 galGrease / FOGYes14th Avenue, San Antonio creek to Estuary.
May 28, 2024552 galGrease / FOG——
May 10, 2024527 galRoot Intrusion——
May 5, 20242K galOther / UnknownYesRockridge and Glen Echo Creek
May 4, 2024810 galGrease / FOGYesLake Temescal
Apr 30, 2024131 galRoot Intrusion——
Apr 30, 2024131 galRoot Intrusion——
Apr 28, 2024820 galRoot Intrusion——
Apr 22, 2024262 galRoot Intrusion——
Apr 20, 2024303 galOther / Unknown——
Apr 11, 2024575 galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Apr 6, 2024169 galEquipment FailureYesTemescal Creek
Apr 5, 2024175 galRoot Intrusion——
Mar 29, 20241K galRoot Intrusion——
Mar 21, 202481 galGrease / FOG——
Mar 15, 2024900 galGrease / FOGYes54th avenue,Peralta, Courtland, Seminary Creek
Mar 12, 2024503 galGrease / FOG——
Mar 7, 20248K galRoot IntrusionYesTemescal Creek
Mar 5, 2024260 galRoot IntrusionYesArroyo Viejo Creek
Mar 4, 20241K galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Feb 22, 2024138 galGrease / FOG——
Feb 22, 2024138 galGrease / FOG——
Feb 22, 2024125 galEquipment Failure——
Feb 16, 2024697 galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Feb 15, 2024684 galGrease / FOGYesLake Merritt
Feb 9, 202481 galEquipment Failure——
Feb 9, 2024168 galEquipment Failure——
Feb 8, 20245K galRoot IntrusionYesTemescal Creek, and Lake Temescal
Feb 7, 20242K galOther / UnknownYesSausal creek dry bed.
Feb 2, 2024480 galGrease / FOGYesArroyo Viejo Creek
Jan 24, 2024799 galOther / Unknown——
Jan 23, 20243K galGrease / FOG——
Jan 21, 202430K galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Jan 21, 2024393 galEquipment FailureYesLion creek, Arroyo Viejo creek, and Damon Slough
Jan 17, 2024300 galGrease / FOGYesSausal creek to Tidal Waters
Jan 16, 2024750 galGrease / FOGYes Lion Creek, Arroyo Viejo Creek, and Diamon Slough
Jan 16, 20245K galRoot IntrusionYesVicente Creek
Jan 14, 20242K galEquipment FailureYesElmhurst creek. (Tidal creek).
Jan 2, 2024900 galOther / UnknownYesNA
Jan 2, 2024900 galRainfall / FloodingYes54th avenue,Peralta, Courtland, Seminary Creek
Jan 2, 2024135 galRoot Intrusion——
Jan 2, 2024784 galRoot IntrusionYesThe separate storm inlet flows to Lion Creek, Arroyo Viejo Creek.
Dec 29, 2023180 galRoot Intrusion——
Dec 25, 2023821 galEquipment FailureYesArroyo Viejo Creek
Dec 25, 2023309 galRoot Intrusion——
Dec 25, 2023309 galRoot Intrusion——
Dec 13, 2023210 galRoot Intrusion——
Dec 12, 2023235 galGrease / FOG——
Nov 29, 20233K galGrease / FOGYes54th avenue,Peralta, Courtland, Seminary Creek
Nov 28, 2023345 galGrease / FOG——
Nov 21, 2023635 galGrease / FOG——
Nov 16, 2023323 galRoot Intrusion——
Nov 15, 20231K galRoot IntrusionYesLion Creek, Arroyo Viejo Creek, Damon Slough.
Nov 15, 20232K galRoot IntrusionYesRo
Nov 4, 202322K galRoot IntrusionYes54th avenue,Peralta, Courtland, Seminary Creek
Nov 1, 202315K galEquipment FailureYesSausal Creek
Oct 29, 20236K galOther / Unknown——
Oct 28, 2023133 galEquipment Failure——
Oct 28, 2023635 galEquipment FailureYesSausal creek dry bed.
Oct 27, 2023121 galEquipment Failure——
Oct 19, 2023358 galRoot IntrusionYesTemescal Creek
Oct 18, 20232K galEquipment FailureYes54th avenue ,Peralta, Courtland, Seminary Creek to Martin Luther King Jr. Shoreline
Oct 12, 2023130 galOther / Unknown——
Oct 9, 2023147 galRoot Intrusion——
Oct 4, 2023135 galEquipment Failure——
Sep 27, 20232K galRoot Intrusion——
Sep 23, 20233K galGrease / FOGYesArroyo Viejo Creek
Sep 23, 2023136 galEquipment Failure——
Sep 23, 2023210 galGrease / FOG——
Sep 13, 2023969 galEquipment Failure——
Sep 9, 2023101 galEquipment Failure——
Sep 1, 2023677 galOther / UnknownYes—
Sep 1, 2023677 galGrease / FOGYes54th avenue,Peralta, Courtland, Seminary Creek
Aug 31, 202389 galGrease / FOG——
Aug 18, 202323K galEquipment FailureYesTiday Canal to San Francisco Bay
Aug 15, 20231K galGrease / FOGYesElmhurst Creek
Aug 2, 202376 galGrease / FOG——
Jul 26, 202375 galEquipment Failure——
Jul 26, 2023160 galRoot Intrusion——
Jul 21, 202376 galGrease / FOG——
Jul 10, 20232K galEquipment Failure——
Jul 4, 2023450 galRoot Intrusion——

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