Les Yesnik - Teck Alaska Inc / Red Dog Operations

NPDES permit AK0038652 · Major NON-POTW · effective, expires 2031-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (37)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 10.5 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Cyanide, weak acid, dissociableMO AVG report only all year
001Cyanide, weak acid, dissociableDAILY MX report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Selenium, total recoverableMO AVG <= 11 ug/L all year
001Selenium, total recoverableDAILY MX <= 17 ug/L all year
001Barium, total [as Ba]MO AVG report only all year
001Barium, total [as Ba]DAILY MX report only all year
001Zinc, total recoverableMO AVG <= 221 ug/L all year
001Zinc, total recoverableDAILY MX <= 388 ug/L all year
001Cadmium, total recoverableMO AVG <= 1.4 ug/L all year
001Cadmium, total recoverableDAILY MX <= 3.7 ug/L all year
001Lead, total recoverableMO AVG <= 8.1 ug/L all year
001Lead, total recoverableDAILY MX <= 18.3 ug/L all year
001Copper, total recoverableMO AVG <= 21 ug/L all year
001Copper, total recoverableDAILY MX <= 52 ug/L all year
001Flow, in conduit or thru treatment plantMO TOTAL report only all year
001Flow, in conduit or thru treatment plantYA <= 2418 Mgal/yr all year
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX report only all year
001Priority pollutants scan [yes/no]MAXIMUM report only all year
001Mercury, total [as Hg]MO AVG <= .01 ug/L all year
001Mercury, total [as Hg]DAILY MX <= .018 ug/L all year
001Organics, tot purgeables [Method 624]MO AVG report only all year
001Organics, tot purgeables [Method 624]DAILY MX report only all year
001Base neutrals & acid [Method 625], totalMO AVG report only all year
001Base neutrals & acid [Method 625], totalDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states