Non-Compliance
Clean Water Act
LARCHWOOD CITY OF STP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
CITY CLERK, CITY HALL
LARCHWOOD, IA 51241
View on map ↗ - County
- LYON County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 1 · last Jun 19, 2023
- Total Penalties
- $0
- Registry ID
- 110039690956
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.
5
Water (CWA)
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 | Schedule Event reported late | Oct 1, 2025 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 1, 2025 | — | Open |
| cwa | Schedule Event unachieved and not reported | Oct 1, 2025 | Feb 26, 2026 | Resolved |
| cwa | Schedule Event unachieved but reported | Oct 1, 2025 | Feb 26, 2026 | Resolved |
| cwa | Schedule Event unachieved but reported | May 1, 2020 | Jun 11, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | May 1, 2020 | Jun 11, 2020 | Resolved |
| cwa | Schedule Event reported late | May 1, 2020 | — | Open |
| cwa | Schedule Event achieved late but reported | May 1, 2020 | — | Open |
| cwa | Schedule Event achieved late but reported | May 1, 2019 | — | Open |
| cwa | Schedule Event reported late | May 1, 2019 | — | Open |
| cwa | Schedule Event reported late | May 1, 2018 | — | Open |
| cwa | Schedule Event unachieved but reported | May 1, 2018 | Dec 27, 2018 | Resolved |
| cwa | Schedule Event achieved late but reported | May 1, 2018 | — | Open |
| cwa | Schedule Event unachieved and not reported | May 1, 2018 | Dec 27, 2018 | Resolved |
| cwa | Schedule Event achieved late but reported | Nov 30, 2016 | — | Open |
| cwa | Schedule Event unachieved and not reported | Nov 30, 2016 | — | Open |
| cwa | Schedule Event unachieved but reported | Nov 30, 2016 | — | Open |
| cwa | Schedule Event reported late | Nov 30, 2016 | — | Open |
| cwa | Schedule Event reported late | Mar 31, 2016 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 31, 2016 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2016 | May 16, 2016 | Resolved |
| cwa | Schedule Event unachieved but reported | Mar 31, 2016 | May 16, 2016 | Resolved |
| cwa | Schedule Event achieved late but reported | Sep 30, 2014 | — | Open |
| cwa | Schedule Event unachieved and not reported | Sep 30, 2014 | May 27, 2015 | Resolved |
| cwa | Schedule Event reported late | Sep 30, 2014 | — | Open |
| cwa | Schedule Event unachieved but reported | Sep 30, 2014 | May 27, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 2012 | — | Open |
| cwa | Schedule Event reported late | Jun 30, 2012 | — | Open |
| cwa | Schedule Event unachieved but reported | Jun 30, 2012 | Mar 5, 2013 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jun 30, 2012 | Mar 5, 2013 | Resolved |
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 |
|---|---|---|---|---|---|---|
| Chloride [as Cl] | DMR, Limited - Numeric Violation | 394.00 mg/L | 389.00 | +1% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.70 mg/L | 2.40 | +138% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.90 mg/L | 7.80 | +40% | Apr 2025 | Open |
| Chloride [as Cl] | DMR, Limited - Numeric Violation | 444.00 mg/L | 389.00 | +14% | Apr 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.55 mg/L | 8.20 | +16% | May 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.33 mg/L | 2.20 | +188% | May 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.67 kg/d | 11.03 | +96% | May 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 116.00 mg/L | 40.00 | +190% | Apr 2020 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 106.80 mg/L | 25.00 | +327% | Apr 2020 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 34.13 mg/L | 25.00 | +37% | Jul 2019 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 43.58 mg/L | 40.00 | +9% | Jul 2019 | Open |
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