PROSSER CITY WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $3,000 in total penalties since records began.
- Address
-
999 GRANDE RD
PROSSER, WA 99350
View on map ↗ - County
- BENTON County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 1 · last Dec 31, 2024
- Total Penalties
- $3,000 · last Sep 29, 2025
- Registry ID
- 110042063138
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.
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 | Mar 31, 2012 | May 1, 2012 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 15, 2010 | — | Open |
| cwa | Schedule Event unachieved but reported | Sep 1, 2008 | Dec 1, 2008 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2008 | Dec 1, 2008 | Resolved |
| cwa | Schedule Event reported late | Sep 1, 2008 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 1, 2008 | — | 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 |
|---|---|---|---|---|---|---|
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.38 kg/d | 0.34 | +11% | Feb 2025 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.20 mg/L | 0.05 | +300% | Feb 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 15.50 mg/L | 15.00 | +3% | Oct 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.17 mg/L | 8.80 | +4% | Dec 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.57 mg/L | 4.40 | +4% | Dec 2017 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 3.60 mg/L | 4.00 | +10% | Aug 2016 | 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.