Non-Compliance
Clean Water Act
BYRON WASTEWATER LAGOON
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
-
35 SOUTH PRYOR STREET
BYRON, WY 82412
View on map ↗ - County
- BIG HORN County
- Inspections
- 1 · last Jul 15, 2025
- Total Penalties
- $0
- Registry ID
- 110055177801
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.
11
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 | Management Practice Violations - Failure to Maintain Records | Jul 15, 2025 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 22, 2020 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Sep 16, 2020 | — | Open |
| cwa | Monitoring Violations - Frequency of Sampling Violation | Sep 16, 2020 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 16, 2020 | — | Open |
| cwa | Monitoring Violations - No Flow Measurement Device | Sep 16, 2020 | — | 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 |
|---|---|---|---|---|---|---|
| E. coli | DMR, Limited - Numeric Violation | 100,000.00 MPN/100mL | 126.00 | +79,265% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 100,000.00 MPN/100mL | 576.00 | +17,261% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 113,333.00 MPN/100mL | 126.00 | +89,847% | Aug 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | Aug 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 80,000.00 MPN/100mL | 576.00 | +13,789% | Aug 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | Jul 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 33.50 mg/L | 30.00 | +12% | Jul 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 1,000,000.00 MPN/100mL | 126.00 | +793,551% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 53.00 mg/L | 30.00 | +77% | Jun 2025 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | -99,999.07 % | 65.00 | +285,897% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 33,333.33 MPN/100mL | 576.00 | +5,687% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 53.00 mg/L | 30.00 | +77% | May 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 178.00 mg/L | 150.00 | +19% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 33,333.33 MPN/100mL | 576.00 | +5,687% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 178.00 mg/L | 100.00 | +78% | May 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 1,000,000.00 MPN/100mL | 126.00 | +793,551% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 178.00 mg/L | 150.00 | +19% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 178.00 mg/L | 100.00 | +78% | Apr 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 330,000.00 MPN/100mL | 630.00 | +52,281% | Mar 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 330,000.00 MPN/100mL | 630.00 | +52,281% | Mar 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 80.00 mg/L | 30.00 | +167% | Mar 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 80.00 mg/L | 45.00 | +78% | Mar 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 500,000.00 MPN/100mL | 630.00 | +79,265% | Feb 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 500,000.00 MPN/100mL | 630.00 | +79,265% | Feb 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 31.00 mg/L | 30.00 | +3% | Jan 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 31,000.00 MPN/100mL | 630.00 | +4,821% | Jan 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 31,000.00 MPN/100mL | 630.00 | +4,821% | Jan 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 900.00 MPN/100mL | 630.00 | +43% | Dec 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 900.00 MPN/100mL | 630.00 | +43% | Dec 2024 | Open |
| Flow | DMR, Limited - Numeric Violation | 6.81 MGD | 0.18 | +3,747% | Dec 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 38.00 mg/L | 30.00 | +27% | Dec 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 50,707.76 MPN/100mL | 630.00 | +7,949% | Nov 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 78,000.00 MPN/100mL | 630.00 | +12,281% | Nov 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 43,000.00 MPN/100mL | 630.00 | +6,725% | Oct 2024 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 46.40 % | 65.00 | +53% | Oct 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 43,000.00 MPN/100mL | 630.00 | +6,725% | Oct 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 21,000.00 MPN/100mL | 126.00 | +16,567% | Sep 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 21,000.00 MPN/100mL | 576.00 | +3,546% | Sep 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 41,000.00 MPN/100mL | 576.00 | +7,018% | Aug 2024 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 23.53 % | 65.00 | +118% | Aug 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 16,284.37 MPN/100mL | 126.00 | +12,824% | Aug 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 41,000.00 MPN/100mL | 576.00 | +7,018% | Jul 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 41,000.00 MPN/100mL | 126.00 | +32,440% | Jul 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 100,000.00 MPN/100mL | 126.00 | +79,265% | Jun 2024 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 20.00 % | 65.00 | +129% | Jun 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 100,000.00 MPN/100mL | 576.00 | +17,261% | Jun 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 8,465.02 MPN/100mL | 126.00 | +6,618% | May 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 20,000.00 MPN/100mL | 576.00 | +3,372% | May 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 44.00 mg/L | 30.00 | +47% | May 2024 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 16,000.00 MPN/100mL | 576.00 | +2,678% | Apr 2024 | Open |
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