Non-Compliance
Clean Water Act
MOSSYROCK 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
-
3963 WA-12
MOSSYROCK, WA 98564
View on map ↗ - County
- LEWIS County
- Inspections
- 7 · last Jun 30, 2025
- Total Penalties
- $0
- Registry ID
- 110015541546
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 | Schedule Event unachieved and not reported | Jun 1, 2021 | Jul 2, 2021 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2020 | Oct 2, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2018 | Oct 2, 2018 | Resolved |
| cwa | Schedule Event achieved late but reported | Sep 1, 2017 | — | Open |
| cwa | Schedule Event unachieved but reported | Sep 1, 2017 | Dec 26, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2017 | Dec 26, 2017 | Resolved |
| cwa | Schedule Event reported late | Sep 1, 2017 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 15, 2017 | Apr 15, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 15, 2017 | Apr 15, 2017 | Resolved |
| cwa | Schedule Event reported late | Sep 30, 2012 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 30, 2012 | — | Open |
| cwa | Schedule Event unachieved and not reported | Sep 30, 2012 | — | Open |
| cwa | Schedule Event unachieved but reported | Sep 30, 2012 | — | 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 | 33.72 kg/d | 29.96 | +13% | Dec 2023 | Open |
| BOD, percent removal [total] | DMR, Limited - Numeric Violation | 82.00 % | 85.00 | +20% | Feb 2016 | Open |
| BOD, percent removal [total] | DMR, Limited - Numeric Violation | 68.00 % | 85.00 | +113% | Jan 2016 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 39.50 kg/d | 19.98 | +98% | Dec 2015 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 33.00 % | 85.00 | +347% | Dec 2015 | Open |
| BOD, percent removal [total] | DMR, Limited - Numeric Violation | 66.00 % | 85.00 | +127% | Dec 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 114.86 kg/d | 29.96 | +283% | Dec 2015 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 83.90 mg/L | 45.00 | +86% | Dec 2015 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 76.00 % | 85.00 | +60% | Nov 2015 | Open |
| BOD, percent removal [total] | DMR, Limited - Numeric Violation | 75.00 % | 85.00 | +67% | Nov 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 80.00 mg/L | 45.00 | +78% | Oct 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 44.50 mg/L | 30.00 | +48% | Oct 2015 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 71.00 mg/L | 45.00 | +58% | Mar 2015 | Open |
| BOD, percent removal [total] | DMR, Limited - Numeric Violation | 81.00 % | 85.00 | +27% | Mar 2015 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 49.00 % | 85.00 | +240% | Jan 2015 | Open |
| BOD, percent removal [total] | DMR, Limited - Numeric Violation | 60.00 % | 85.00 | +167% | Jan 2015 | Open |
Other facilities in LEWIS County, WA
WINLOCK MULTI FAMILY
WINLOCK, WA
VALLEY MEADOWS 240 WATER SYSTEM
CHEHALIS, WA
UNFI INCORPORATED CENTRALIA
CENTRALIA, WA
· Wholesale Trade
HOMESTREET PLAT
CHEHALIS, WA
BLUE SKY IMP
CHEHALIS, WA
PORT OF CENTRALIA FILL PERMIT
CENTRALIA, WA