Non-Compliance
Clean Water Act
WILDHORSE SPRING FARM WWTP
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
-
18714 WILDHORSE CR. RD.
CHESTERFIELD, MO 63005
View on map ↗ - County
- SAINT LOUIS County
- Inspections
- 2 · last Nov 19, 2025
- Total Penalties
- $0
- Registry ID
- 110006727024
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.
12
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 | Effluent Violations - Numeric effluent violation | Feb 2, 2026 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Dec 11, 2025 | — | Open |
| cwa | Permit Violations - Failure to Submit Timely Permit Renewal Application | Dec 11, 2025 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Dec 5, 2025 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Apr 4, 2025 | May 14, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2025 | Feb 28, 2025 | Resolved |
| cwa | Reporting Violations - Failure to Submit DMRs | Dec 26, 2024 | Mar 25, 2025 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Dec 26, 2024 | Mar 25, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2024 | Feb 28, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2023 | Feb 28, 2023 | Resolved |
| cwa | Permit Violations - Failure to Submit Timely Permit Renewal Application | Sep 28, 2021 | Jan 6, 2022 | 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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.73 mg/L | 2.20 | +251% | Dec 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.95 mg/L | 1.00 | +395% | Sep 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 4.95 mg/L | 1.00 | +395% | Sep 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 1,553.10 MPN/100mL | 1,030.00 | +51% | Sep 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 37.00 mg/L | 30.00 | +23% | Mar 2019 | Open |
| E. coli | DMR, Limited - Numeric Violation | 332.50 MPN/100mL | 206.00 | +61% | Dec 2018 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.00 mg/L | 2.90 | +486% | Dec 2018 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.00 mg/L | 11.70 | +45% | Dec 2018 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,046.20 MPN/100mL | 1,030.00 | +2% | Sep 2018 | Open |
| E. coli | DMR, Limited - Overdue | 1,046.20 MPN/100mL | 1,030.00 | +2% | Sep 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 68.00 mg/L | 30.00 | +127% | Jun 2017 | Open |
| E. coli, colony forming units [CFU] | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 1,030.00 | +99,999% | Jun 2017 | Open |
| E. coli, colony forming units [CFU] | DMR, Limited - Numeric Violation | 298.80 MPN/100mL | 206.00 | +45% | Jun 2017 | Open |
| Ammonia [as N] + unionized ammonia | DMR, Limited - Numeric Violation | 3.70 mg/L | 1.40 | +164% | Jun 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 68.00 mg/L | 45.00 | +51% | Jun 2017 | Open |
| Ammonia [as N] + unionized ammonia | DMR, Limited - Numeric Violation | 8.40 mg/L | 2.80 | +200% | Mar 2015 | Open |
| Ammonia [as N] + unionized ammonia | DMR, Limited - Numeric Violation | 8.40 mg/L | 7.50 | +12% | Mar 2015 | Open |
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