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South Dakota · EPA ECHO (national)
Spearfish, City of SSCS
Permit SD0020044
—
No waterway impact reported
Reported events
5
Total volume
95K gal
Reached waterways
0 (0%)
Reporting since
2023
What caused the overflows
Other / Unknown
3
Root Intrusion
1
Rainfall / Flooding
1
Reported overflow events (showing 5 of 5)
| Date | Volume | Cause | Reached water | Receiving water |
|---|---|---|---|---|
| Jan 29, 2026 | 42K gal | Other / Unknown | — | — |
| May 5, 2025 | 50 gal | Root Intrusion | — | — |
| Jul 2, 2024 | 22K gal | Other / Unknown | — | — |
| Jul 2, 2024 | 31K gal | Other / Unknown | — | — |
| Jun 23, 2023 | — | Rainfall / Flooding | — | Spearfish Creek / Rubble Site Cell |
Source: EPA ECHO (national). Volumes are utility-reported estimates. Some events lack precise coordinates or volumes.