Non-Compliance
Clean Water Act
MANDERSON SEWER PROJECT
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
-
PO BOX 96
MANDERSON, WY 82432
View on map ↗ - County
- BIG HORN County
- Inspections
- 2 · last Dec 8, 2022
- Total Penalties
- $0
- Registry ID
- 110055204719
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.
10
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 | Jul 28, 2025 | — | Open |
| cwa | Schedule Event unachieved but reported | May 4, 2021 | Aug 3, 2021 | 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 |
|---|---|---|---|---|---|---|
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 73.60 % | 85.00 | +76% | Dec 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 59.50 % | 85.00 | +170% | Dec 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,200.00 MPN/100mL | 630.00 | +90% | Dec 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 93.00 mg/L | 30.00 | +210% | Nov 2025 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 75.90 % | 85.00 | +61% | Nov 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 93.00 mg/L | 45.00 | +107% | Nov 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.00 MPN/100mL | 630.00 | +284% | Nov 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 85.00 | +567% | Nov 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 70.80 % | 85.00 | +95% | Oct 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 79.50 % | 85.00 | +37% | Sep 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 85.00 | +567% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 314.00 MPN/100mL | 126.00 | +149% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 235.00 | +930% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 5,480.00 MPN/100mL | 235.00 | +2,232% | Aug 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 80.00 mg/L | 45.00 | +78% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 190.23 MPN/100mL | 126.00 | +51% | Jul 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 85.00 | +567% | Jul 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 80.00 mg/L | 30.00 | +167% | Jul 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 770.00 MPN/100mL | 235.00 | +228% | Jul 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 41.30 % | 85.00 | +291% | Jul 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 32.00 mg/L | 30.00 | +7% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.00 MPN/100mL | 235.00 | +929% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 255.56 MPN/100mL | 126.00 | +103% | Jun 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 46.00 mg/L | 45.00 | +2% | Jun 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 46.00 mg/L | 30.00 | +53% | Jun 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 85.00 | +567% | Jun 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 31.00 mg/L | 30.00 | +3% | May 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 38.00 % | 85.00 | +313% | May 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 80.30 % | 85.00 | +31% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 235.00 | +930% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 71.00 mg/L | 45.00 | +58% | Mar 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,010.00 MPN/100mL | 630.00 | +60% | Mar 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 71.00 mg/L | 30.00 | +137% | Mar 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 33.60 % | 85.00 | +343% | Mar 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 49.20 % | 85.00 | +239% | Feb 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 80.50 % | 85.00 | +30% | Jan 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 39.20 % | 85.00 | +305% | Jan 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 81.40 % | 85.00 | +24% | Dec 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 649.00 MPN/100mL | 630.00 | +3% | Nov 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 48.89 % | 85.00 | +241% | Nov 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.00 MPN/100mL | 630.00 | +284% | Oct 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 72.83 % | 85.00 | +81% | Oct 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 62.30 % | 85.00 | +151% | Sep 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 39.00 mg/L | 30.00 | +30% | Aug 2024 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 32.00 % | 85.00 | +353% | Aug 2024 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 73.50 % | 85.00 | +77% | Jul 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 85.00 | +567% | Jul 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 82.00 mg/L | 30.00 | +173% | Jul 2024 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 82.00 mg/L | 45.00 | +82% | Jul 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 85.00 | +567% | Jun 2024 | 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.
State CWA Non Penalty AO
Clean Water Act
· Case WY-17819 · May 14, 2019
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