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South Dakota · EPA ECHO (national)

Rapid City, City of SSCS

Permit SD0023574

—
No waterway impact reported
Reported events
23
Total volume
4.1M gal
Reached waterways
0 (0%)
Reporting since
2023

What caused the overflows

Equipment Failure
14
Other / Unknown
5
Root Intrusion
4

Reported overflow events (showing 23 of 23)

DateVolumeCauseReached waterReceiving water
Mar 26, 2026400 galEquipment Failure——
Mar 18, 202675 galEquipment Failure——
Dec 1, 2025100 galEquipment Failure——
Sep 10, 202510 galRoot Intrusion——
Jul 25, 2025200 galEquipment Failure——
Jul 25, 202550 galEquipment Failure——
May 14, 202550 galEquipment Failure——
May 13, 2025350 galRoot Intrusion——
May 12, 2025150 galRoot Intrusion——
Dec 29, 2024500 galEquipment Failure——
Jul 1, 20241K galOther / Unknown—Rapid Creek
May 28, 202480K galOther / Unknown——
May 16, 202450K galEquipment Failure——
Apr 21, 20241 galOther / Unknown——
Apr 15, 20242K galEquipment Failure——
Mar 22, 20243.9M galOther / Unknown—Box Elder sewer system/POTW
Dec 17, 20232K galRoot Intrusion——
Nov 7, 2023500 galEquipment Failure——
Oct 20, 20231 galEquipment Failure——
Oct 19, 20231 galEquipment Failure——
Jul 20, 2023500 galEquipment Failure——
Jul 9, 202361K galEquipment Failure——
May 25, 202350 galOther / Unknown——

Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.