Velarion Records

Clean Water Act discharge permit · NPDES NMR050012

TA54 AREAS G AND L, Los Alamos, NM: NPDES NMR050012 discharge permit, effluent exceedances, inspections, penalties

TA54 AREAS G AND L, held by Newport News Nuclear BWXT Los Alamos, holds NPDES permit NMR050012. EPA’s file records it issued May 2, 2018 and expiring June 3, 2020. 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 filedTA54 AREAS G AND L
Permittee as filedNewport News Nuclear BWXT Los Alamos
NPDES IDNMR050012
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeFederal facility
ProgramIndustrial stormwater
IssuedMay 2, 2018
Expiration dateJune 3, 2020
Issuing agencyU.S. EPA
AddressLos Alamos, NM 87544
Receiving water impaired303(D) Listed
SubwatershedCanada Ancha-Rio Grande (HUC 130202010203)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Arsenic, total [as As]1580
BOD, 5-day, 20 deg. C1080
pH1080
Solids, total suspended1080
Chromium, total [as Cr]1080
Zinc, total [as Zn]1080
Phenol1080
Naphthalene1080
Nitrogen, ammonia, total [as NH3]1080
Pyridine1080
Aniline1080
p-Cresol1080
Benzoic acids, total1080
.alpha.-Terpineol1080
Aluminum, total [as Al]360
Alpha, total550
Aluminum, total recoverable540
Alpha, gross adjusted240
Copper, dissolved [as Cu]030
Ammonia, unionized510
Polychlorinated biphenyls [PCBs]510
Cyanide, total [as CN]800
Magnesium, total [as Mg]500
Cadmium, total [as Cd]500
Lead, total [as Pb]500
Silver, total [as Ag]500
Selenium, total [as Se]500
Mercury, total [as Hg]500
Chemical Oxygen Demand [COD]500

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NMR050012.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES NMR050012.

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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How we handle your data → Privacy

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 NMR050012 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

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