Non-Compliance
Clean Air Act
Clean Water Act
RCRA
TWIN FALLS STP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $19,188 in total penalties since records began.
- Address
-
350 CANYON SPRINGS RD
TWIN FALLS, ID 83301
View on map ↗ - County
- TWIN FALLS County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 4 · last Apr 30, 2025
- Total Penalties
- $19,188 · last Jun 8, 2023
- Registry ID
- 110039977102
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
11
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 27, 2026 | Jan 28, 2026 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 24, 2026 | Jan 24, 2026 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 9, 2026 | Jan 9, 2026 | Resolved |
| cwa | Schedule Event reported late | Nov 10, 2025 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 10, 2025 | — | Open |
| cwa | Schedule Event unachieved but reported | Nov 1, 2025 | Dec 2, 2025 | Resolved |
| cwa | Reporting Violations - Failure to Notify | Sep 13, 2025 | Nov 28, 2025 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Sep 13, 2025 | Nov 28, 2025 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jul 30, 2025 | Jul 31, 2025 | Resolved |
| cwa | Effluent Violations - Narrative Effluent Violation | Jun 3, 2025 | Jun 3, 2025 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | Jun 3, 2025 | Jun 3, 2025 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | May 14, 2025 | Jun 30, 2025 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | May 14, 2025 | Jun 13, 2025 | Resolved |
| cwa | Schedule Event achieved late but reported | May 10, 2025 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | May 7, 2025 | Jun 30, 2025 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | May 7, 2025 | Jun 13, 2025 | Resolved |
| cwa | Effluent Violations - Narrative Effluent Violation | Apr 3, 2025 | Apr 3, 2025 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Mar 30, 2025 | May 7, 2025 | Resolved |
| cwa | Schedule Event unachieved but reported | Feb 19, 2025 | Mar 22, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2025 | Mar 7, 2025 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 31, 2025 | Mar 7, 2025 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2025 | — | Open |
| cwa | Schedule Event reported late | Jan 31, 2025 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Sep 16, 2024 | Sep 16, 2024 | Resolved |
| cwa | WW SSO - Discharge to Waters | Jul 14, 2024 | Jun 13, 2025 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jun 26, 2024 | Jun 26, 2024 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Feb 9, 2024 | Feb 9, 2024 | Resolved |
| cwa | WW SSO - Discharge to Waters | Feb 9, 2024 | Jun 13, 2025 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Feb 8, 2024 | Feb 8, 2024 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 30, 2024 | Jan 30, 2024 | Resolved |
| cwa | WW SSO - Discharge to Waters | Aug 26, 2023 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | May 13, 2023 | — | Open |
| cwa | Schedule Event unachieved but reported | Feb 13, 2023 | Mar 13, 2024 | Resolved |
| cwa | Schedule Event reported late | Feb 13, 2023 | — | Open |
| cwa | Schedule Event unachieved and not reported | Feb 13, 2023 | Mar 13, 2024 | Resolved |
| cwa | Schedule Event achieved late but reported | Feb 13, 2023 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 12, 2023 | Jan 12, 2023 | Resolved |
| cwa | WW SSO - Improper Operation and Maintenance | Nov 21, 2022 | Dec 9, 2022 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Apr 5, 2022 | Apr 5, 2022 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | Apr 5, 2022 | Apr 5, 2022 | Resolved |
| cwa | Monitoring Violations - Frequency of Sampling Violation | Apr 5, 2022 | Apr 5, 2022 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Feb 24, 2022 | Feb 24, 2022 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | Feb 24, 2022 | Feb 24, 2022 | Resolved |
| cwa | Monitoring Violations - Frequency of Sampling Violation | Feb 24, 2022 | Feb 24, 2022 | Resolved |
| cwa | Pretreatment - Failure to Issue SIU Permits | Jul 15, 2020 | — | Open |
| cwa | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | Jul 15, 2020 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Apr 14, 2020 | — | Open |
| cwa | PR: Biosolids - Land Application: Applied to Land at Greater than the Agronomic Rate Violation | Jan 1, 2017 | — | Open |
| cwa | PR: Biosolids - Land Application: Vector Attraction Reduction Violation | Jan 1, 2017 | — | Open |
| cwa | Schedule Event achieved late but reported | Nov 1, 2001 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 51.77 mg/L | 45.00 | +15% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 2,012.48 kg/d | 1,458.70 | +38% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,489.40 kg/d | 1,458.70 | +2% | Jul 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 465.92 kg/d | 449.46 | +4% | Jul 2025 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 732.60 MPN/100mL | 406.00 | +80% | Jul 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 287.84 kg/d | 221.55 | +30% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.70 mg/L | 7.50 | +3% | Apr 2025 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 613.00 MPN/100mL | 406.00 | +51% | Aug 2022 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 659.00 MPN/100mL | 406.00 | +62% | Oct 2017 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 462.00 MPN/100mL | 406.00 | +14% | Dec 2016 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,647.11 kg/d | 1,458.70 | +13% | Aug 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 56.00 mg/L | 45.00 | +24% | Aug 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 48.00 mg/L | 45.00 | +7% | Feb 2015 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Administrative - Formal
· Case 10-1994-0252
$0
State CWA Penalty AO
Clean Water Act
· Case ID-2023-0003 · Jun 8, 2023
$19,188
CWA 309A AO For Compliance
Clean Water Act
· Case 10-1998-N003 · Oct 28, 1997
CWA 309A AO For Compliance
Clean Water Act
· Case 10-1995-N030 · Jan 12, 1995
CWA 309A AO For Compliance
Clean Water Act
· Case 10-1987-N010 · Apr 9, 1987
Judicial
· Case 10-1985-0001 · Sep 26, 1985
$50,000
Judicial
· Case 10-1983-0007 · Apr 24, 1984
$22,080
Judicial
· Case 10-1976-0006 · Oct 21, 1980
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· Manufacturing