Non-Compliance
Clean Water Act
KAYENTA WWTF
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
-
1 M EAST OF KAYENTA
KAYENTA, AZ 86033
View on map ↗ - County
- NAVAJO County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 1 · last Dec 4, 2025
- Total Penalties
- $0
- Registry ID
- 110010062699
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 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Dec 16, 2025 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Oct 20, 2025 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Aug 10, 2025 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | May 2, 2025 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Jan 3, 2025 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Sep 22, 2024 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Sep 1, 2024 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Aug 23, 2024 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Aug 20, 2024 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Aug 14, 2024 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Mar 11, 2024 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Feb 27, 2024 | — | Open |
| cwa | Schedule Event reported late | Jun 11, 2020 | — | Open |
| cwa | Schedule Event unachieved but reported | Jun 11, 2020 | Jul 30, 2021 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jun 11, 2020 | Jul 30, 2021 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 11, 2020 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 30, 2017 | Aug 2, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 30, 2017 | Aug 2, 2024 | 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 |
|---|---|---|---|---|---|---|
| E. coli | DMR, Limited - Numeric Violation | 1,381.98 MPN/100mL | 126.00 | +997% | Dec 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 235.00 | +99,999% | Dec 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | Dec 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 97.60 mg/L | 65.00 | +50% | Dec 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 394.99 kg/d | 216.56 | +82% | Dec 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 14.60 % | 65.00 | +144% | Dec 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 97.60 mg/L | 45.00 | +117% | Dec 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15,600,000.00 mg/L | 1,000,000.00 | +1,460% | Dec 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 235.00 | +930% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 28,200,000.00 mg/L | 1,000,000.00 | +2,720% | Nov 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 79.00 mg/L | 65.00 | +22% | Nov 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 79.00 mg/L | 45.00 | +76% | Nov 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 84.40 mg/L | 65.00 | +30% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 235.00 | +99,999% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,005.21 MPN/100mL | 126.00 | +698% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19,880,000.00 mg/L | 1,000,000.00 | +1,888% | Oct 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 84.40 mg/L | 45.00 | +88% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15,200,000.00 mg/L | 1,000,000.00 | +1,420% | Sep 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 235.00 | +930% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Overdue | 15,200,000.00 mg/L | 1,000,000.00 | +1,420% | Sep 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 614.75 MPN/100mL | 126.00 | +388% | Sep 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 59.90 mg/L | 45.00 | +33% | Sep 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 326.13 MPN/100mL | 126.00 | +159% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7,500,000.00 mg/L | 1,000,000.00 | +650% | Aug 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 235.00 | +99,999% | Aug 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 63.10 mg/L | 45.00 | +40% | Aug 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7,140,000.00 mg/L | 1,000,000.00 | +614% | Jul 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 59.60 mg/L | 45.00 | +32% | Jul 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 68.40 mg/L | 65.00 | +5% | Jun 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 68.40 mg/L | 45.00 | +52% | Jun 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 307.60 MPN/100mL | 235.00 | +31% | May 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9,750,000.00 mg/L | 1,000,000.00 | +875% | May 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 57.20 % | 65.00 | +22% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 1,553.10 MPN/100mL | 235.00 | +561% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3,600,000.00 mg/L | 1,000,000.00 | +260% | Apr 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5,180,000.00 mg/L | 1,000,000.00 | +418% | Feb 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7,550,000.00 mg/L | 1,000,000.00 | +655% | Jan 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2,020,000.00 mg/L | 1,000,000.00 | +102% | Dec 2024 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 63.50 mg/L | 45.00 | +41% | Oct 2024 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 54.60 mg/L | 45.00 | +21% | Sep 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2,920,000.00 mg/L | 1,000,000.00 | +192% | Aug 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5,230,000.00 mg/L | 1,000,000.00 | +423% | Jul 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2,000,000.00 mg/L | 1,000,000.00 | +100% | Jun 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4,670,000.00 mg/L | 1,000,000.00 | +367% | May 2024 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 72.10 mg/L | 65.00 | +11% | May 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 72.10 mg/L | 45.00 | +60% | May 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8,410,000.00 mg/L | 1,000,000.00 | +741% | Apr 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4,540,000.00 mg/L | 1,000,000.00 | +354% | Mar 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5,020,000.00 mg/L | 1,000,000.00 | +402% | Feb 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2,530,000.00 mg/L | 1,000,000.00 | +153% | Jan 2024 | Resolved |
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.
Judicial
· Case 09-2021-2003 · Aug 2, 2024
Administrative - Formal
· Case 09-2016-1509 · Sep 30, 2016
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