Clean Water Act discharge permit · NPDES NN0030335
NAVAJO TOWNSITE WWTF, Navajo, NM: NPDES NN0030335 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
NAVAJO TOWNSITE WWTF, held by NAVAJO TRIBAL UTILITY AUTH, holds NPDES permit NN0030335, which discharges to Black Creek. EPA’s file records it issued December 20, 2006 and expiring December 22, 2011. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NAVAJO TOWNSITE WWTF |
|---|---|
| Permittee as filed | NAVAJO TRIBAL UTILITY AUTH |
| NPDES ID | NN0030335 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 20, 2006 |
| Expiration date | December 22, 2011 |
| Address | Navajo, NM 87328 |
| Receiving water | BLACK CREEK |
| Subwatershed | Buell Wash-Black Creek (HUC 150200060305) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 138Pollutants on file
- 11Under a numeric limit
- 138With a violation of any kind
- 7With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 138 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 5 | 68 | 53 | December 31, 2015 | 381% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 56 | 36 | September 30, 2016 | 378% over the limit |
| E. coli | 2 | 29 | 23 | March 31, 2016 | 99,999% over the limit |
| Chlorine, total residual | 2 | 27 | 23 | July 31, 2015 | 17,022% over the limit |
| Solids, suspended percent removal | 1 | 26 | 23 | April 30, 2012 | 445% over the limit |
| BOD, 5-day, percent removal | 1 | 12 | 8 | August 31, 2010 | 66% over the limit |
| pH | 2 | 11 | 4 | July 31, 2009 | |
| Solids, total dissolved | 3 | 9 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 9 | 0 | ||
| Nitrogen, ammonia, total [as NH3] | 1 | 6 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 5 | 0 | ||
| Cyanide, total [as CN] | 0 | 1 | 0 | ||
| Asbestos | 0 | 1 | 0 | ||
| Arsenic, total recoverable | 0 | 1 | 0 | ||
| Selenium, total recoverable | 0 | 1 | 0 | ||
| Thallium, total recoverable | 0 | 1 | 0 | ||
| Beryllium, total recoverable [as Be] | 0 | 1 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 1 | 0 | ||
| Chromium, trivalent [as Cr] | 0 | 1 | 0 | ||
| Nickel, total recoverable | 0 | 1 | 0 | ||
| Silver total recoverable | 0 | 1 | 0 | ||
| Zinc, total recoverable | 0 | 1 | 0 | ||
| Cadmium, total recoverable | 0 | 1 | 0 | ||
| Lead, total recoverable | 0 | 1 | 0 | ||
| Copper, total recoverable | 0 | 1 | 0 | ||
| Antimony, total recoverable | 0 | 1 | 0 | ||
| 2-Methyl-4,6-dinitrophenol | 0 | 1 | 0 | ||
| Dichlorobromomethane | 0 | 1 | 0 | ||
| Carbon tetrachloride | 0 | 1 | 0 | ||
| 1,2-Dichloroethane | 0 | 1 | 0 | ||
| Bromoform | 0 | 1 | 0 | ||
| Dibromochloromethane | 0 | 1 | 0 | ||
| Chloroform | 0 | 1 | 0 | ||
| Toluene | 0 | 1 | 0 | ||
| Benzene | 0 | 1 | 0 | ||
| .delta.-BHC | 0 | 1 | 0 | ||
| Acenaphthylene | 0 | 1 | 0 | ||
| Acenaphthene | 0 | 1 | 0 | ||
| Acrolein | 0 | 1 | 0 | ||
| Acrylonitrile | 0 | 1 | 0 | ||
| Anthracene | 0 | 1 | 0 | ||
| Benzo[b]fluoranthene | 0 | 1 | 0 | ||
| Benzo[k]fluoranthene | 0 | 1 | 0 | ||
| Benzo[a]pyrene | 0 | 1 | 0 | ||
| Bis[2-chloroethyl] ether | 0 | 1 | 0 | ||
| Bis[2-chloroethoxy]methane | 0 | 1 | 0 | ||
| Bis[2-chloroisopropyl] ether | 0 | 1 | 0 | ||
| Butyl benzyl phthalate | 0 | 1 | 0 | ||
| Chlorobenzene | 0 | 1 | 0 | ||
| Chrysene | 0 | 1 | 0 | ||
| Diethyl phthalate | 0 | 1 | 0 | ||
| Dimethyl phthalate | 0 | 1 | 0 | ||
| 1,2-Diphenylhydrazine | 0 | 1 | 0 | ||
| Endosulfan sulfate | 0 | 1 | 0 | ||
| .beta.-Endosulfan | 0 | 1 | 0 | ||
| .alpha.-Endosulfan | 0 | 1 | 0 | ||
| Endrin aldehyde | 0 | 1 | 0 | ||
| Ethylbenzene | 0 | 1 | 0 | ||
| Fluoranthene | 0 | 1 | 0 | ||
| Fluorene | 0 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NN0030335.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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Start the watch
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NN0030335 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.