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California · California (CIWQS)

Petaluma City PWD

F
Usually reaches water
Reported events
129
Total volume
1.2M gal
Reached waterways
68 (53%)
Reporting since
2007

What caused the overflows

Rainfall / Flooding
29
Equipment Failure
26
Root Intrusion
21
Capacity Issue
20
Grease / FOG
18
Other / Unknown
15

Reported overflow events (showing 129 of 129)

DateVolumeCauseReached waterReceiving water
Feb 4, 2026945 galGrease / FOG——
Jun 26, 20252K galRoot Intrusion——
Feb 4, 20252K galRainfall / FloodingYesPetaluma River
Feb 4, 202524K galRainfall / FloodingYesPetaluma River
Dec 14, 202413K galRainfall / FloodingYesPetaluma River
Feb 4, 20248K galRainfall / FloodingYesPetaluma River
Feb 4, 202448K galRainfall / FloodingYesPetaluma River
Jan 9, 2023775 galOther / UnknownYesSurface Water
Dec 20, 2022370 galRoot Intrusion—Separate Storm Drain;Unpaved surface
Dec 10, 202223K galEquipment FailureYesSurface Water
Oct 31, 20221K galEquipment FailureYesSeparate Storm Drain
Jun 16, 202210 galEquipment Failure—Paved Surface;Street/Curb and Gutter
Jan 31, 2022953 galGrease / FOGYesSurface Water
Oct 24, 202150K galRainfall / FloodingYesSurface Water
Oct 24, 20219K galRainfall / FloodingYesSurface Water
Oct 24, 2021275 galRainfall / FloodingYesSurface Water
Oct 24, 202198K galRainfall / FloodingYesSurface Water
Oct 24, 202123K galRainfall / FloodingYesSurface Water
Oct 24, 202145K galRainfall / FloodingYesSurface Water
Apr 16, 2021107 galEquipment FailureYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Apr 7, 20212 galEquipment Failure—Unpaved surface
Feb 24, 20212 galRoot Intrusion—Paved Surface
Nov 21, 20205K galEquipment FailureYesSurface Water
Mar 10, 202080 galGrease / FOG—Other (specify below)
Feb 28, 202080 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 6, 202036 galEquipment FailureYesSeparate Storm Drain;Street/Curb and Gutter
Feb 6, 202010 galCapacity Issue—Street/Curb and Gutter
Dec 2, 201975 galGrease / FOG—Paved Surface
Nov 28, 2019850 galRoot Intrusion—Separate Storm Drain
Nov 16, 201910 galEquipment FailureYesDrainage Channel
Apr 3, 2019870 galOther / Unknown—Unpaved surface
Mar 13, 2019428 galEquipment FailureYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Feb 26, 2019803 galCapacity IssueYesSeparate Storm Drain;Street/Curb and Gutter;Surface Water
Feb 13, 20194K galCapacity IssueYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Feb 13, 201915K galCapacity IssueYesSeparate Storm Drain;Street/Curb and Gutter;Surface Water
Feb 13, 20193K galCapacity IssueYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Feb 13, 2019750 galCapacity IssueYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Feb 5, 201936 galEquipment FailureYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter
Jan 16, 20193K galRainfall / FloodingYesSurface Water
Jan 16, 2019200 galRainfall / FloodingYesSeparate Storm Drain
Jan 16, 2019450 galRainfall / FloodingYesSeparate Storm Drain
Jan 16, 201980 galRainfall / FloodingYesSeparate Storm Drain
Jan 10, 201933 galGrease / FOG—Street/Curb and Gutter
Nov 18, 201810 galGrease / FOG—Street/Curb and Gutter
Jun 22, 20184 galGrease / FOG—Other (specify below)
Apr 6, 20185 galRoot Intrusion—Unpaved surface
Apr 6, 2018660 galRainfall / FloodingYesDrainage Channel
Feb 25, 201852 galGrease / FOG—Building or Structure
Feb 16, 2018180 galEquipment Failure—Street/Curb and Gutter
Jan 28, 201810 galEquipment Failure—Paved Surface
Jan 4, 201822 galGrease / FOG—Street/Curb and Gutter
Nov 7, 2017180 galGrease / FOG—Paved Surface
Sep 24, 2017600 galOther / Unknown—Unpaved surface
Jul 24, 201752 galOther / UnknownYesSurface Water
May 28, 2017750 galEquipment FailureYesSeparate Storm Drain
Mar 22, 2017540 galEquipment FailureYesSeparate Storm Drain
Feb 7, 20177K galRainfall / FloodingYesSurface Water
Feb 7, 20172 galCapacity Issue—Paved Surface
Dec 12, 20161 galEquipment Failure—Paved Surface
Nov 14, 20165 galEquipment Failure—Separate Storm Drain
Oct 9, 20163 galRoot Intrusion—Street/Curb and Gutter
Aug 30, 20163 galRoot Intrusion—Street/Curb and Gutter
Jul 13, 201615 galEquipment Failure—Unpaved surface
May 28, 20161K galOther / UnknownYesSeparate Storm Drain
Apr 18, 201610 galOther / Unknown—Street/Curb and Gutter
Feb 16, 2016100 galRoot Intrusion—Paved Surface
Jan 19, 2016100 galCapacity IssueYesSeparate Storm Drain
Jan 6, 201610 galEquipment Failure—Other (specify below)
Dec 28, 201515 galRoot Intrusion—Unpaved surface
Nov 3, 20151 galGrease / FOG—Other (specify below)
Aug 26, 20158 galEquipment Failure—Street/Curb and Gutter
Jun 25, 201510 galOther / Unknown—Paved Surface
Jun 25, 2015100 galGrease / FOG—Separate Storm Drain
Jun 2, 201540 galRoot Intrusion—Paved Surface
Mar 25, 201510 galRoot Intrusion—Other (specify below)
Mar 15, 20155 galCapacity Issue—Paved Surface
Dec 20, 20142 galCapacity Issue—Paved Surface
Dec 11, 2014120K galCapacity IssueYesSurface Water
Dec 11, 2014145K galCapacity IssueYesSurface Water
Dec 11, 2014184K galCapacity IssueYesSurface Water
Dec 11, 2014720 galCapacity IssueYesSurface Water
Dec 11, 201418K galCapacity IssueYesSurface Water
Dec 11, 20145K galCapacity IssueYesSurface Water
Dec 11, 201473K galCapacity IssueYesSurface Water
Nov 12, 201430 galRoot Intrusion—Unpaved surface
Nov 12, 201450 galRoot Intrusion—Unpaved surface
Nov 10, 20144 galGrease / FOG—Street/Curb and Gutter
Sep 17, 20142 galCapacity Issue—Paved Surface
Sep 4, 20145 galRoot Intrusion—Street/Curb and Gutter
Jun 23, 20144 galRoot Intrusion—Unpaved surface
May 29, 20145 galEquipment Failure—Paved Surface
Dec 27, 201310 galGrease / FOG—Separate Storm Drain
Dec 4, 2013100 galEquipment FailureYesSeparate Storm Drain
Oct 26, 20137 galRoot Intrusion—Unpaved surface
Oct 25, 201340 galOther / Unknown—Unpaved surface
Oct 25, 201330 galEquipment Failure—Separate Storm Drain
Oct 24, 20136 galEquipment Failure—Separate Storm Drain
Oct 21, 201310 galRoot Intrusion—Unpaved surface
Jun 13, 201310 galRoot Intrusion—Unpaved surface
Mar 26, 201315 galGrease / FOGYesSeparate Storm Drain
Dec 23, 20124K galCapacity IssueYesSurface water
Dec 23, 2012400 galRainfall / FloodingYesSeparate Storm Drain
Dec 2, 2012400 galOther / UnknownYesSurface water
Oct 14, 20128 galGrease / FOG—Paved Surface
Sep 4, 201210 galRoot Intrusion—Unpaved surface
Aug 25, 201230 galGrease / FOG—Paved Surface
Jul 31, 20126 galRoot Intrusion—Unpaved surface
Mar 19, 20112K galOther / UnknownYesSurface water
Dec 28, 20101K galCapacity IssueYesSurface water
Jan 20, 20109K galRainfall / FloodingYesSurface water
Jan 19, 20103K galRainfall / FloodingYesSurface water
Jan 19, 201014K galRainfall / FloodingYesSurface water
Jan 18, 20108K galRainfall / FloodingYesSurface water
Jan 18, 20102K galRainfall / FloodingYesSurface water
Sep 2, 2009210 galEquipment Failure—Storm drain;Street/curb and gutter
Aug 26, 2009900 galOther / Unknown—Storm drain
Dec 8, 20084K galEquipment FailureYesSurface water
Nov 4, 200875 galGrease / FOG—Storm drain
Jan 25, 200811K galRainfall / FloodingYesStorm drain
Jan 25, 200846K galRainfall / FloodingYesSurface water
Jan 25, 200860K galRainfall / FloodingYesSurface water
Jan 25, 200811K galRainfall / FloodingYesStorm drain
Jan 25, 200848K galRainfall / FloodingYesSurface water
Jan 25, 200819K galRainfall / FloodingYesSurface water
Jan 4, 20081K galOther / UnknownYesSurface water
Jan 4, 20083K galOther / UnknownYesSurface water
Jan 4, 20082K galOther / UnknownYesSurface water
Jan 4, 200814K galOther / UnknownYesSurface water
Nov 12, 2007500 galRoot IntrusionYesUnpaved surface

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