Non-Compliance
Clean Water Act
WAPATO WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $25,750 in total penalties since records began.
- Address
-
68172 HWY 97
WAPATO, WA 98951
View on map ↗ - County
- YAKIMA County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 2 · last Jun 18, 2024
- Total Penalties
- $25,750 · last Jul 22, 2021
- Registry ID
- 110009763461
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 | Jan 31, 2026 | Mar 3, 2026 | Resolved |
| cwa | Schedule Event unachieved and not reported | Oct 1, 2025 | Nov 1, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2025 | Mar 3, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 29, 2024 | Apr 29, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2014 | Oct 2, 2019 | Resolved |
| cwa | Schedule Event reported late | May 31, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | May 31, 2014 | — | Open |
| cwa | Schedule Event reported late | Mar 31, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 31, 2014 | — | Open |
| cwa | Schedule Event reported late | Dec 31, 2013 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 30, 2013 | — | Open |
| cwa | Schedule Event reported late | Sep 30, 2013 | — | Open |
| cwa | Schedule Event reported late | Jun 30, 2013 | — | Open |
| cwa | Schedule Event achieved late but reported | Jun 30, 2013 | — | Open |
| cwa | Schedule Event reported late | Mar 31, 2013 | — | Open |
| cwa | Schedule Event reported late | Dec 31, 2012 | — | Open |
| cwa | Schedule Event unachieved but reported | Dec 31, 2012 | May 29, 2013 | Resolved |
| cwa | Schedule Event reported late | Dec 31, 2012 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2012 | May 30, 2013 | Resolved |
| cwa | Schedule Event achieved late but reported | Dec 31, 2012 | — | Open |
| cwa | Schedule Event unachieved and not reported | Oct 31, 2012 | Nov 30, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | May 1, 2012 | Jul 30, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 1, 2012 | Mar 2, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 1, 2012 | Mar 2, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2012 | Jan 31, 2017 | Resolved |
| cwa | Schedule Event unachieved and not reported | Apr 29, 2003 | May 29, 2003 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 19, 2003 | Mar 21, 2003 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 29, 2003 | Feb 28, 2003 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jul 29, 2002 | Aug 28, 2002 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 19, 2002 | Mar 21, 2002 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 30, 2002 | Apr 30, 2002 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2001 | Nov 30, 2001 | Resolved |
| cwa | Schedule Event unachieved and not reported | Apr 1, 2001 | Jun 30, 2001 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 19, 2001 | Mar 21, 2001 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 19, 2000 | Mar 20, 2000 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 19, 1999 | Mar 21, 1999 | 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 |
|---|---|---|---|---|---|---|
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.12 mg/L | 0.03 | +376% | Jan 2026 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.54 kg/d | 0.23 | +136% | Jan 2026 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.26 kg/d | 0.11 | +137% | Jan 2026 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.25 mg/L | 0.05 | +381% | Jan 2026 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.28 kg/d | 0.23 | +22% | Dec 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.26 mg/L | 0.03 | +950% | Dec 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 1.07 kg/d | 0.11 | +883% | Dec 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.67 mg/L | 0.05 | +1,192% | Dec 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.07 mg/L | 0.05 | +35% | Nov 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.13 kg/d | 0.11 | +15% | Nov 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.03 | +125% | Nov 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.20 mg/L | 0.05 | +285% | Oct 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.42 kg/d | 0.23 | +85% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.41 kg/d | 3.18 | +259% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 37.82 kg/d | 11.35 | +233% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.30 mg/L | 0.70 | +657% | Oct 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.07 mg/L | 0.03 | +179% | Oct 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.15 kg/d | 0.11 | +42% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.00 mg/L | 2.60 | +592% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.70 kg/d | 3.18 | +457% | Sep 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.03 | +18% | Sep 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.57 mg/L | 0.70 | +981% | Sep 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.00 mg/L | 2.60 | +477% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 37.55 kg/d | 11.35 | +231% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 61.56 kg/d | 11.35 | +442% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.75 mg/L | 0.70 | +2,579% | Aug 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.03 | +36% | Aug 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 41.84 kg/d | 3.18 | +1,216% | Aug 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.00 mg/L | 2.60 | +823% | Aug 2025 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 665.00 MPN/100mL | 200.00 | +233% | Jul 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 44.18 kg/d | 3.18 | +1,290% | Jul 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.03 | +40% | Jul 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 28.00 mg/L | 2.60 | +977% | Jul 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.20 mg/L | 0.70 | +2,500% | Jul 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.05 | +19% | Jul 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 64.92 kg/d | 11.35 | +472% | Jul 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 47.22 kg/d | 4.72 | +900% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 2.60 | +746% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 55.84 kg/d | 23.74 | +135% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.75 mg/L | 0.70 | +2,579% | Jun 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.37 mg/L | 0.05 | +612% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.75 mg/L | 1.10 | +1,605% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 55.84 kg/d | 11.35 | +392% | Jun 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.42 kg/d | 0.11 | +285% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 5.40 | +307% | Jun 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.93 kg/d | 0.23 | +308% | Jun 2025 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.17 mg/L | 0.03 | +569% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 47.22 kg/d | 3.18 | +1,386% | Jun 2025 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.05 mg/L | 0.03 | +80% | May 2025 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 225.00 MPN/100mL | 200.00 | +13% | May 2025 | 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.
Administrative - Formal
· Case 10-2021-0126 · Jul 22, 2021
$25,750
Administrative - Formal
· Case 10-2021-0125 · Jun 10, 2021
Administrative - Formal
· Case 10-2012-0056 · Apr 23, 2012
CWA 309G2B AO For Class II Penalties
Clean Water Act
· Case 10-2012-N005 · Apr 23, 2012
Administrative - Formal
· Case 10-2012-0008 · Feb 6, 2012
$57,000
CWA 309G2B AO For Class II Penalties
Clean Water Act
· Case 10-2012-N004 · Feb 6, 2012
$57,000
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