Resolution Copper Mining Llc

NPDES permit AZ0020389 · Major NON-POTW · expired, expires 2022-01-22 · 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.

This permit expired on 2022-01-22 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 26 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among AZ permits in EPA's filings — check your permit).

Limits in force (100)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Cyanide, total [as CN]MO AVG <= 7.9 ug/L all year
001Cyanide, total [as CN]DAILY MX <= 16 ug/L all year
001Sulfide, total [as S]MO AVG report only all year
001Sulfide, total [as S]DAILY 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
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Arsenic, total recoverableMO AVG <= 80 ug/L all year
001Arsenic, total recoverableDAILY MX <= 120 ug/L all year
001Iron, total recoverableMO AVG <= 820 ug/L all year
001Iron, total recoverableDAILY MX <= 1640 ug/L all year
001Selenium, total recoverableMO AVG <= 2 ug/L all year
001Selenium, total recoverableDAILY MX <= 3 ug/L all year
001Thallium, total recoverableMO AVG <= 7.2 ug/L all year
001Thallium, total recoverableDAILY MX <= 11 ug/L all year
001Beryllium, total recoverable [as Be]MO AVG <= 4.3 ug/L all year
001Beryllium, total recoverable [as Be]DAILY MX <= 8.7 ug/L all year
001Chromium, total [as Cr]MO AVG report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Nickel, total recoverableMO AVG <= 52.5 ug/L all year
001Nickel, total recoverableDAILY MX <= 105 ug/L all year
001Silver total recoverableMO AVG <= 2.5 ug/L all year
001Silver total recoverableDAILY MX <= 4.9 ug/L all year
001Zinc, total recoverableMO AVG <= 72 ug/L all year
001Zinc, total recoverableDAILY MX <= 144 ug/L all year
001Cadmium, total recoverableMO AVG <= 2.2 ug/L all year
001Cadmium, total recoverableDAILY MX <= 4.4 ug/L all year
001Lead, total recoverableMO AVG <= 2.7 ug/L all year
001Lead, total recoverableDAILY MX <= 5.4 ug/L all year
001Copper, total recoverableMO AVG <= 8.5 ug/L all year
001Copper, total recoverableDAILY MX <= 17 ug/L all year
001Chromium, hexavalent dissolved [as Cr]MO AVG <= 7.9 ug/L all year
001Chromium, hexavalent dissolved [as Cr]DAILY MX <= 16 ug/L all year
001Antimony, total recoverableMO AVG <= 25 ug/L all year
001Antimony, total recoverableDAILY MX <= 49 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantWKLY AVG report only all year
001Hydrogen sulfideMO AVG <= 2 ug/L all year
001Hydrogen sulfideDAILY MX <= 3 ug/L all year
001Mercury, total recoverableMO AVG <= .01 ug/L all year
001Mercury, total recoverableDAILY MX <= .02 ug/L all year
001Pass/Fail Static 96Hr Acute Ceriodaphnia DubiaMO MED report only all year
001Pass/Fail Static 96 Hr Acute Pimephales PromelasMO MED report only all year
001TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)MO MED report only all year
001TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)DAILY MX report only all year
001Static 7Day Chronic Pimephales PromelasMO MED report only all year
001Static 7Day Chronic Pimephales PromelasDAILY MX report only all year
001TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaMO MED report only all year
001TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaDAILY MX report only all year
002Temperature, water deg. centigradeMO AVG report only all year
002Temperature, water deg. centigradeDAILY MX report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Cyanide, total [as CN]MO AVG report only all year
002Cyanide, total [as CN]DAILY MX report only all year
002Sulfide, total [as S]MO AVG report only all year
002Sulfide, total [as S]DAILY MX report only all year
002Hardness, total [as CaCO3]MO AVG report only all year
002Hardness, total [as CaCO3]DAILY MX report only all year
002Hardness, total [as CaCO3]MO AVG report only all year
002Hardness, total [as CaCO3]DAILY MX report only all year
002Iron, total recoverableMO AVG <= 820 ug/L all year
002Iron, total recoverableDAILY MX <= 1640 ug/L all year
002Selenium, total recoverableMO AVG <= 2 ug/L all year
002Selenium, total recoverableDAILY MX <= 3 ug/L all year
002Chromium, total [as Cr]MO AVG report only all year
002Chromium, total [as Cr]DAILY MX report only all year
002Silver total recoverableMO AVG report only all year
002Silver total recoverableDAILY MX report only all year
002Zinc, total recoverableMO AVG <= 72 ug/L all year
002Zinc, total recoverableDAILY MX <= 144 ug/L all year
002Cadmium, total recoverableMO AVG <= 50 ug/L all year
002Cadmium, total recoverableDAILY MX <= 100 ug/L all year
002Lead, total recoverableMO AVG <= 2.7 ug/L all year
002Lead, total recoverableDAILY MX <= 5.4 ug/L all year
002Copper, total recoverableMO AVG <= 8.5 ug/L all year
002Copper, total recoverableDAILY MX <= 17 ug/L all year
002Chromium, hexavalent dissolved [as Cr]MO AVG report only all year
002Chromium, hexavalent dissolved [as Cr]DAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Solids, total dissolvedMO AVG report only all year
002Solids, total dissolvedDAILY MX report only all year
002Hydrogen sulfideMO AVG report only all year
002Hydrogen sulfideDAILY MX report only all year
002Mercury, total recoverableMO AVG <= 1 ug/L all year
002Mercury, total recoverableDAILY MX <= 2 ug/L all year
002Pass/Fail Static 48Hr Acute Ceriodaphnia dubiaMO MED report only all year
002Pass/Fail Static 96 Hr Acute Pimephales PromelasMO MED report only all year
002TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)MO MED report only all year
002TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)DAILY MX report only all year
002Static 7Day Chronic Pimephales PromelasMO MED report only all year
002Static 7Day Chronic Pimephales PromelasDAILY MX report only all year
002TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaMO MED report only all year
002TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaDAILY 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