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California · California (CIWQS)

Sacramento Area Sewer District (merged)

A
Rarely reaches water
Reported events
18,588
Total volume
6.9M gal
Reached waterways
651 (4%)
Reporting since
2000

What caused the overflows

Root Intrusion
520
Equipment Failure
359
Grease / FOG
66
Other / Unknown
42
Rainfall / Flooding
12
Capacity Issue
1

Reported overflow events (showing 200 of 18,588)

DateVolumeCauseReached waterReceiving water
May 16, 2026220 galEquipment Failure——
May 15, 202653 galGrease / FOG——
Apr 28, 2026290 galGrease / FOGYesElder Creek
Apr 21, 202642 galEquipment FailureYesChicken Ranch Slough
Apr 11, 2026826 galRoot IntrusionYesCoyle Creek
Apr 8, 2026160 galEquipment FailureYesAmerican River
Apr 3, 2026281 galOther / Unknown——
Mar 29, 20263K galEquipment FailureYesUnnamed Tributary to Morrison Creek
Mar 4, 202650 galEquipment Failure——
Feb 26, 202656 galRoot IntrusionYesArcade Creek
Feb 17, 2026347 galEquipment FailureYesMorrison Creek
Feb 17, 2026105 galEquipment Failure——
Feb 15, 2026145 galEquipment FailureYesElder Creek
Feb 15, 2026201 galRoot IntrusionYesLake House Acres Creek
Feb 13, 2026415 galEquipment Failure——
Feb 9, 202621 galEquipment FailureYesUnnamed Tributary to Strawberry Creek
Feb 9, 20265K galRoot Intrusion——
Jan 29, 2026503 galEquipment Failure——
Jan 27, 2026810 galRoot Intrusion——
Dec 22, 2025378 galRoot IntrusionYesUnnamed Tributary to the American River
Dec 22, 2025883 galEquipment FailureYesLaguna West Drainage Channel
Dec 21, 2025491 galRoot IntrusionYesStrong Ranch Slough
Dec 14, 2025435 galGrease / FOGYesUnnamed Creek tributary to Dry Creek
Dec 14, 2025295 galEquipment Failure——
Dec 3, 2025258 galEquipment Failure——
Nov 29, 2025697 galEquipment Failure——
Nov 19, 202542 galRoot IntrusionYesCripple Creek
Nov 17, 2025113 galEquipment FailureYesStrong Ranch Slough
Nov 5, 202542 galRoot IntrusionYesRobla Creek (Rio Linda Creek)
Nov 1, 2025528 galRoot IntrusionYesUnnamed Tributary to Arcade Creek/Arcade Creek
Oct 22, 2025440 galRoot Intrusion——
Oct 21, 2025289 galEquipment Failure——
Oct 9, 20253K galRoot IntrusionYesUnnamed Tributary to Dry Creek
Oct 8, 20252K galGrease / FOGYesSan Juan Creek and Arcade Creek
Oct 7, 2025159 galRoot IntrusionYesCoyle Creek
Sep 25, 2025520 galRoot IntrusionYesCarmichael Creek
Sep 24, 20256K galOther / Unknown——
Sep 22, 2025119 galEquipment Failure——
Sep 21, 2025100 galEquipment FailureYesUnnamed Tributary to American River
Sep 6, 202567 galOther / Unknown——
Aug 11, 20252K galEquipment FailureYesHagan Park Pond
Jul 27, 202514K galRoot Intrusion—American River
Jul 6, 2025284 galEquipment FailureYesSan Juan Creek
Jul 5, 2025116 galRoot IntrusionYesGoat Creek
Jul 4, 2025720 galGrease / FOGYesStrong Ranch Slough (Sierra Creek)
Jun 14, 2025192 galRoot Intrusion——
Jun 12, 2025274 galEquipment FailureYesAmerican River
May 16, 2025452 galGrease / FOGYesStrong Ranch Slough
May 2, 20252K galEquipment FailureYesMorrison Creek
Apr 20, 20251K galRoot IntrusionYesBrooktree Creek
Apr 14, 2025125 galRoot IntrusionYesStrong Ranch Slough
Apr 11, 20257K galGrease / FOGYesStrong Ranch Slough
Apr 6, 2025647 galGrease / FOGYesMorrison Creek
Mar 26, 2025991 galEquipment FailureYesMorrison Creek
Mar 20, 2025140 galGrease / FOG——
Mar 15, 2025571 galEquipment Failure——
Feb 25, 2025982 galRoot Intrusion——
Feb 23, 20251K galRoot Intrusion——
Feb 17, 2025240 galGrease / FOGYesUnnamed Tributary to Cripple Creek
Feb 11, 2025370 galEquipment FailureYesMorrison Creek
Feb 11, 2025128 galRoot Intrusion——
Feb 3, 2025240 galRoot Intrusion——
Jan 29, 2025297 galRoot Intrusion——
Jan 22, 2025410 galGrease / FOGYesUnnamed Tributary to Morrison Creek
Jan 21, 2025524 galRoot IntrusionYesBrooktree Creek
Jan 18, 2025103 galGrease / FOG——
Jan 17, 2025177 galOther / UnknownYesCoyle Creek
Jan 15, 2025266 galEquipment Failure——
Jan 12, 2025262 galGrease / FOG——
Jan 2, 2025126 galGrease / FOG——
Dec 31, 2024209 galEquipment FailureYesAmerican River
Dec 29, 20242K galEquipment FailureYesAmerican River
Dec 26, 2024191 galRoot IntrusionYesStrong Ranch Slough
Dec 20, 202460 galEquipment Failure——
Dec 17, 2024173 galRoot Intrusion——
Dec 16, 202438K galGrease / FOGYesMorrison Creek
Dec 12, 2024225 galEquipment FailureYesMagpie Creek
Dec 2, 2024336 galRoot IntrusionYesFranklin Creek
Nov 25, 202495 galRoot IntrusionYesUnnamed Creek Tributary to the American River
Nov 25, 2024213 galEquipment FailureYesStrawberry Creek
Nov 7, 20244K galOther / UnknownYesUnnamed Irrigation Ditch
Nov 5, 2024180 galRoot IntrusionYesUnnamed Tributary to Arcade Creek
Nov 4, 2024167 galOther / Unknown——
Oct 29, 2024240 galOther / Unknown——
Oct 24, 2024790 galRoot Intrusion——
Oct 13, 202487 galEquipment Failure——
Oct 8, 2024227 galRoot Intrusion——
Oct 5, 202484 galEquipment FailureYesUnnamed tributary to Elk Grove Creek
Oct 4, 2024123 galRoot Intrusion——
Oct 4, 2024207 galGrease / FOG——
Sep 20, 2024233 galRoot IntrusionYesArcade Creek
Sep 17, 2024226 galOther / Unknown——
Sep 10, 2024227 galOther / Unknown——
Aug 27, 2024234 galRoot Intrusion——
Jul 30, 2024209 galRoot Intrusion——
Jul 6, 2024900 galOther / UnknownYesUnnamed Pond
Jun 25, 2024119 galEquipment Failure——
Jun 3, 2024158 galGrease / FOG——
May 7, 2024291 galGrease / FOGYesBrooktree Creek
Apr 25, 2024125 galGrease / FOG——
Apr 14, 2024325 galEquipment Failure——
Apr 9, 202495 galRoot Intrusion——
Apr 8, 2024173 galRoot Intrusion——
Apr 1, 20241K galGrease / FOG——
Mar 30, 202414K galRoot IntrusionYesUnnamed tributary to Morrison Creek
Mar 17, 2024992 galEquipment FailureYesUnnamed tributary to the American River
Mar 16, 2024594 galEquipment FailureYesChicken Ranch Slough
Mar 13, 20241K galRoot IntrusionYesEast Drainage Canal
Mar 4, 2024978 galRoot IntrusionYesMorrison Creek
Mar 3, 202475 galRoot IntrusionYesBeacon Creek
Mar 2, 2024910 galRoot IntrusionYesElder Creek
Mar 1, 202478 galRoot IntrusionYesStrawberry Creek
Feb 28, 2024378 galRoot IntrusionYesStrawberry Creek
Feb 26, 20242K galRoot IntrusionYesUnnamed Tributary to the American River
Feb 24, 202488 galRoot IntrusionYesCoyle Creek
Feb 24, 2024955 galGrease / FOG——
Feb 22, 2024349 galRoot IntrusionYesMagpie Creek
Feb 18, 2024658 galEquipment FailureYesUnnamed tributary to the Sacramento River
Feb 14, 202416 galEquipment FailureYesAmerican River
Feb 12, 20241K galRoot IntrusionYesMorrison Creek
Feb 10, 202411K galOther / UnknownYesUnnamed Canal Ditch
Feb 6, 202452 galEquipment FailureYesBrooktree Creek
Feb 3, 2024190 galGrease / FOGYesChicken Ranch Slough
Jan 31, 202439 galGrease / FOGYesUnnamed Tributary to the American River
Jan 26, 2024310 galRoot Intrusion——
Jan 21, 2024394 galEquipment Failure——
Jan 18, 2024161 galGrease / FOG——
Jan 13, 202430 galRoot IntrusionYesAmerican River
Jan 13, 202430 galEquipment FailureYesAmerican River
Jan 5, 2024640 galEquipment FailureYesCripple Creek
Jan 2, 2024414 galRoot IntrusionYesSan Juan Creek
Dec 27, 20231K galRoot IntrusionYesBuffalo Creek
Dec 20, 2023780 galEquipment FailureYesMorrison Creek
Dec 13, 20232K galGrease / FOGYesBrooktree Creek
Dec 12, 2023132 galRoot Intrusion——
Dec 12, 2023211 galEquipment Failure——
Dec 1, 2023462 galRoot IntrusionYesChicken Ranch Slough
Dec 1, 20231K galOther / UnknownYesUnnamed Tributary to Stone Lakes
Nov 19, 2023131 galRoot Intrusion——
Nov 6, 202358 galEquipment FailureYesArcade Creek
Nov 4, 2023199 galEquipment FailureYesUnnamed Tributary to Dry Creek
Oct 13, 2023586 galRoot IntrusionYesMorrison Creek
Oct 6, 2023476 galGrease / FOG——
Sep 13, 20233K galEquipment FailureYesStrawberry Creek (Beacon Creek)
Sep 8, 202398 galRoot IntrusionYesStrong Ranch Slough
Sep 7, 2023320 galEquipment Failure——
Aug 10, 2023245 galEquipment Failure——
Aug 5, 2023783 galRoot IntrusionYesStrong Ranch Slough
Aug 5, 2023783 galRoot IntrusionYesStrong Ranch Slough
Jul 7, 2023127 galEquipment Failure——
Jul 5, 202349 galOther / UnknownYesAmerican River
Jun 12, 20235K galGrease / FOGYesElder Creek
Jun 5, 2023300 galRoot Intrusion——
Jun 2, 20232 galEquipment Failure—Unpaved Surface;
Jun 1, 20237 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved Surface;
May 30, 202312 galEquipment Failure—Separate Storm Drain;Street/Curb and Gutter;
May 30, 20235 galRoot Intrusion—Unpaved Surface;
May 28, 202310 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved Surface;
May 28, 202312 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved Surface;
May 27, 202313 galEquipment Failure—Unpaved Surface;
May 26, 20235 galRoot Intrusion—Unpaved Surface;
May 25, 20236 galRoot Intrusion—Unpaved Surface;
May 22, 202380 galEquipment Failure—Unpaved Surface;
May 22, 20234 galEquipment Failure—Unpaved Surface;
May 22, 20236 galRoot Intrusion—Unpaved Surface;
May 21, 2023138 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved Surface;
May 19, 20235 galRoot Intrusion—Building or Structure;
May 18, 20235 galEquipment Failure—Unpaved Surface;
May 17, 202366 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved Surface;
May 16, 20234 galRoot Intrusion—Building or Structure;
May 16, 2023112 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;
May 16, 20235 galRoot Intrusion—Unpaved Surface;
May 15, 20234 galRoot Intrusion—Paved Surface;Unpaved Surface;
May 15, 20238 galEquipment Failure—Paved Surface;Street/Curb and Gutter;Unpaved Surface;
May 15, 20235 galRoot Intrusion—Street/Curb and Gutter;Unpaved Surface;
May 15, 202318 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved Surface;
May 13, 202361 galGrease / FOG—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;
May 13, 20236 galEquipment Failure—Street/Curb and Gutter;
May 12, 202343 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved Surface;
May 12, 20235 galRoot Intrusion—Separate Storm Drain;Unpaved Surface;
May 11, 202336 galEquipment Failure—Building or Structure;Unpaved Surface;
May 11, 2023277 galGrease / FOG—Other (specify below);Paved Surface;Unpaved Surface;
May 9, 202322 galEquipment Failure—Separate Storm Drain;Unpaved Surface;
May 8, 20232 galOther / Unknown—Paved Surface;Unpaved Surface;
May 8, 202311 galRoot Intrusion—Paved Surface;Unpaved Surface;
May 5, 2023294 galRoot IntrusionYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
May 5, 20234 galEquipment Failure—Paved Surface;Unpaved Surface;
May 4, 202364 galRoot Intrusion—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved Surface;
May 3, 20237 galEquipment Failure—Building or Structure;
May 2, 20238 galRoot Intrusion—Building or Structure;Paved Surface;Unpaved Surface;
May 2, 20233 galRoot Intrusion—Unpaved Surface;
Apr 30, 2023197 galRoot IntrusionYesPaved Surface;Separate Storm Drain;Street/Curb and Gutter;Surface Water
Apr 30, 20235 galEquipment Failure—Paved Surface;Unpaved Surface;
Apr 29, 202370 galEquipment Failure—Paved Surface;Separate Storm Drain;Street/Curb and Gutter;Unpaved Surface;
Apr 26, 20239 galRoot Intrusion—Paved Surface;Unpaved Surface;
Apr 25, 20234 galRoot Intrusion—Unpaved Surface;
Apr 25, 20236 galEquipment Failure—Building or Structure;Unpaved Surface;
Apr 24, 20238 galRoot Intrusion—Paved Surface;Street/Curb and Gutter;Unpaved Surface;
Apr 23, 20238 galRoot Intrusion—Building or Structure;Unpaved Surface;
Apr 23, 20232 galEquipment Failure—Building or Structure;

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