Thorin Resources LLC

NPDES permit CO0000003 · Minor NON-POTW · administratively continued, expires 2018-08-31 · 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 2018-08-31 and is administratively continued: 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

5values over a limit
48required values missing, on 3 form(s)
2of 38 forms filed late

Last period with anything received: 2026-07-31. Most often over: Zinc, potentially dissolved (4), Silver, potentially dissolved (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (129)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX WK AV report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG <= 20 mg/L all year
001Solids, total suspendedMX 7D AV <= 30 mg/L all year
001Cyanide, weak acid, dissociableDAILY MX <= 5.6 ug/L all year
001Arsenic, total recoverable30DA AVG report only all year
001Iron, total recoverable30DA AVG <= 1000 ug/L all year
001Iron, total recoverable30DA AVG <= 1204 ug/L all year
001Iron, total recoverable30DA AVG <= 1276 ug/L all year
001Cadmium, total [as Cd]30DA AVG <= 50 ug/L all year
001Cadmium, total [as Cd]DAILY MX <= 100 ug/L all year
001Copper, total [as Cu]30DA AVG <= 150 ug/L all year
001Copper, total [as Cu]DAILY MX <= 300 ug/L all year
001Lead, total [as Pb]30DA AVG <= 300 ug/L all year
001Lead, total [as Pb]DAILY MX <= 600 ug/L all year
001Zinc, total [as Zn]30DA AVG <= 750 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 1500 ug/L all year
001Zinc, potentially dissolved30DA AVG <= 101 ug/L all year
001Zinc, potentially dissolved30DA AVG <= 117 ug/L all year
001Zinc, potentially dissolved30DA AVG <= 126 ug/L all year
001Zinc, potentially dissolvedDAILY MX <= 116 ug/L all year
001Zinc, potentially dissolvedDAILY MX <= 154 ug/L all year
001Zinc, potentially dissolvedDAILY MX <= 166 ug/L all year
001Silver, potentially dissolved30DA AVG <= .055 ug/L all year
001Silver, potentially dissolved30DA AVG <= .08 ug/L all year
001Silver, potentially dissolvedDAILY MX <= 1.5 ug/L all year
001Silver, potentially dissolvedDAILY MX report only all year
001Copper, potentially dissolved30DA AVG <= 7.2 ug/L all year
001Copper, potentially dissolved30DA AVG <= 8.6 ug/L all year
001Copper, potentially dissolved30DA AVG <= 12 ug/L all year
001Copper, potentially dissolved30DA AVG <= 12.5 ug/L all year
001Copper, potentially dissolvedDAILY MX <= 11 ug/L all year
001Copper, potentially dissolvedDAILY MX <= 13 ug/L all year
001Copper, potentially dissolvedDAILY MX report only all year
001Copper, potentially dissolvedDAILY MX report only all year
001Cadmium, potentially dissolvd30DA AVG <= .35 ug/L all year
001Cadmium, potentially dissolvd30DA AVG <= .41 ug/L all year
001Cadmium, potentially dissolvd30DA AVG <= .44 ug/L all year
001Cadmium, potentially dissolvd30DA AVG <= .74 ug/L all year
001Cadmium, potentially dissolvdDAILY MX <= 1.4 ug/L all year
001Cadmium, potentially dissolvdDAILY MX <= 1.6 ug/L all year
001Cadmium, potentially dissolvdDAILY MX <= 2.1 ug/L all year
001Cadmium, potentially dissolvdDAILY MX <= 2.2 ug/L all year
001Lead, potentially dissolvd30DA AVG <= 1.9 ug/L all year
001Lead, potentially dissolvd30DA AVG <= 2.4 ug/L all year
001Lead, potentially dissolvd30DA AVG <= 2.6 ug/L all year
001Lead, potentially dissolvd30DA AVG <= 2.6 ug/L all year
001Lead, potentially dissolvdDAILY MX <= 49 ug/L all year
001Lead, potentially dissolvdDAILY MX <= 62 ug/L all year
001Lead, potentially dissolvdDAILY MX <= 91 ug/L all year
001Lead, potentially dissolvdDAILY MX <= 100 ug/L all year
001Manganese, potentially dissolvd30DA AVG <= 1519 ug/L all year
001Manganese, potentially dissolvd30DA AVG <= 1627 ug/L all year
001Manganese, potentially dissolvd30DA AVG <= 1960 ug/L all year
001Manganese, potentially dissolvd30DA AVG <= 2067 ug/L all year
001Manganese, potentially dissolvdDAILY MX <= 2749 ug/L all year
001Manganese, potentially dissolvdDAILY MX <= 2945 ug/L all year
001Manganese, potentially dissolvdDAILY MX <= 3828 ug/L all year
001Manganese, potentially dissolvdDAILY MX <= 4127 ug/L all year
001Nickel, potentially dissolvd30DA AVG <= 47 ug/L all year
001Nickel, potentially dissolvdDAILY MX report only all year
001Selenium, potentially dissolvd30DA AVG <= 52 ug/L all year
001Selenium, potentially dissolvdDAILY MX report only all year
001Oil and greaseINST MAX <= 10 mg/L all year
001Chromium, trivalent total recoverable30DA AVG report only all year
001Flow, in conduit or thru treatment plant30DA AVG <= 1.75 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total [low level]30DA AVG report only all year
001Mercury, total [low level]30DA AVG <= .011 ug/L all year
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Mercury, total [as Hg]30DA AVG <= 1 ug/L all year
001Mercury, total [as Hg]DAILY MX <= 2 ug/L all year
001Oil and grease visualINST MAX report only all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
001Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 89 tox chronic all year
001Static Renewal 7 Day Chronic Pimephales promelasSINGSAMP report only all year
001Static Renewal 7 Day Chronic Pimephales promelasMN VALUE report only all year
001Static Renewal 7 Day Chronic Pimephales promelasMN VALUE >= 89 tox chronic all year
002Temperature, water deg. centigradeMX WK AV 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 suspended30DA AVG <= 20 mg/L all year
002Solids, total suspendedMX 7D AV <= 30 mg/L all year
002Cyanide, weak acid, dissociableDAILY MX <= 5.6 ug/L all year
002Arsenic, total recoverable30DA AVG report only all year
002Iron, total recoverable30DA AVG <= 1276 ug/L all year
002Cadmium, total [as Cd]30DA AVG <= 50 ug/L all year
002Cadmium, total [as Cd]DAILY MX <= 100 ug/L all year
002Copper, total [as Cu]30DA AVG <= 150 ug/L all year
002Copper, total [as Cu]DAILY MX <= 300 ug/L all year
002Lead, total [as Pb]30DA AVG <= 300 ug/L all year
002Lead, total [as Pb]DAILY MX <= 600 ug/L all year
002Zinc, total [as Zn]30DA AVG <= 750 ug/L all year
002Zinc, total [as Zn]DAILY MX <= 1500 ug/L all year
002Zinc, potentially dissolved30DA AVG <= 126 ug/L all year
002Zinc, potentially dissolvedDAILY MX <= 166 ug/L all year
002Silver, potentially dissolved30DA AVG <= .08 ug/L all year
002Silver, potentially dissolvedDAILY MX report only all year
002Copper, potentially dissolved30DA AVG <= 12.5 ug/L all year
002Copper, potentially dissolvedDAILY MX report only all year
002Cadmium, potentially dissolvd30DA AVG <= .74 ug/L all year
002Cadmium, potentially dissolvdDAILY MX <= 2.2 ug/L all year
002Lead, potentially dissolvd30DA AVG <= 2.6 ug/L all year
002Lead, potentially dissolvdDAILY MX <= 100 ug/L all year
002Manganese, potentially dissolvd30DA AVG <= 2067 ug/L all year
002Manganese, potentially dissolvdDAILY MX <= 4127 ug/L all year
002Oil and greaseINST MAX <= 10 mg/L all year
002Chromium, trivalent total recoverable30DA AVG report only all year
002Flow, in conduit or thru treatment plant30DA AVG <= 1.75 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Mercury, total [low level]30DA AVG <= .011 ug/L all year
002Solids, total dissolved30DA AVG report only all year
002Mercury, total [as Hg]30DA AVG <= 1 ug/L all year
002Mercury, total [as Hg]DAILY MX <= 2 ug/L all year
002Oil and grease visualINST MAX report only all year
002Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
002Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
002Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 89 tox chronic all year
002Static Renewal 7 Day Chronic Pimephales promelasSINGSAMP report only all year
002Static Renewal 7 Day Chronic Pimephales promelasMN VALUE report only all year
002Static Renewal 7 Day Chronic Pimephales promelasMN VALUE >= 89 tox chronic 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