ARC McClain Canyon LLC

NPDES permit CO0038342 · Minor NON-POTW · administratively continued, expires 2020-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2020-08-31 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

0values over a limit
411required values missing, on 33 form(s)
47of 57 forms filed late

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

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 (99)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 70 mg/L all year
001Solids, settleableDAILY MX report only all year
001Arsenic, total recoverable30DA AVG report only all year
001Iron, total recoverable30DA AVG <= 3500 ug/L all year
001Iron, total recoverable30DA AVG <= 1000 ug/L all year
001Iron, total recoverableDAILY MX <= 7000 ug/L all year
001Iron, total recoverableDAILY MX <= 7000 ug/L all year
001Zinc, potentially dissolved30DA AVG report only all year
001Zinc, potentially dissolvedDAILY MX report only all year
001Copper, potentially dissolved30DA AVG report only all year
001Copper, potentially dissolvedDAILY MX report only all year
001Cadmium, potentially dissolvd30DA AVG report only all year
001Cadmium, potentially dissolvdDAILY MX report only all year
001Lead, potentially dissolvd30DA AVG report only all year
001Lead, potentially dissolvdDAILY MX report only all year
001Selenium, potentially dissolvd30DA AVG report only all year
001Selenium, potentially dissolvdDAILY MX report only all year
001Flow, in conduit or thru treatment plant30DA AVG <= .216 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total low level30DA AVG report only all year
001LC50 Static Renewal 48Hr Acute Ceriodaphnia dubiaMN VALUE report only all year
001LC50 Static Renewal 48Hr Acute Ceriodaphnia dubiaMN VALUE >= 100 % all year
001LC50 Static Renewal 96Hr Acute Pimephales promelasMN VALUE report only all year
001LC50 Static Renewal 96Hr Acute Pimephales promelasMN VALUE >= 100 % all year
002Conductivity30DA AVG report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Bicarbonate ion- [as HCO3]30DA AVG report only all year
002Bicarbonate ion- [as HCO3]DAILY MX report only all year
002Solids, total suspended30DA AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 70 mg/L all year
002Calcium, total recoverable30DA AVG report only all year
002Calcium, total recoverableDAILY MX report only all year
002Magnesium, total recoverable30DA AVG report only all year
002Magnesium, total recoverableDAILY MX report only all year
002Sodium, total recoverable30DA AVG report only all year
002Sodium, total recoverableDAILY MX report only all year
002Sodium adsorption ratio30DA AVG report only all year
002Sodium adsorption ratioDAILY MX report only all year
002Arsenic, total recoverable30DA AVG <= 100 ug/L all year
002Iron, total recoverable30DA AVG <= 3500 ug/L all year
002Iron, total recoverable30DA AVG <= 1000 ug/L all year
002Iron, total recoverableDAILY MX <= 7000 ug/L all year
002Iron, total recoverableDAILY MX <= 7000 ug/L all year
002Zinc, potentially dissolved30DA AVG <= 428 ug/L all year
002Zinc, potentially dissolvedDAILY MX <= 564 ug/L all year
002Copper, potentially dissolved30DA AVG <= 29 ug/L all year
002Copper, potentially dissolvedDAILY MX <= 50 ug/L all year
002Cadmium, potentially dissolvd30DA AVG <= 31 ug/L all year
002Cadmium, potentially dissolvd30DA AVG <= 1.2 ug/L all year
002Cadmium, potentially dissolvdDAILY MX report only all year
002Cadmium, potentially dissolvdDAILY MX <= 9.1 ug/L all year
002Lead, potentially dissolvd30DA AVG <= 40 ug/L all year
002Lead, potentially dissolvd30DA AVG <= 11 ug/L all year
002Lead, potentially dissolvdDAILY MX report only all year
002Lead, potentially dissolvdDAILY MX <= 281 ug/L all year
002Selenium, potentially dissolvd30DA AVG <= 254 ug/L all year
002Selenium, potentially dissolvd30DA AVG <= 4.6 ug/L all year
002Selenium, potentially dissolvdDAILY MX report only all year
002Selenium, potentially dissolvdDAILY MX <= 18 ug/L all year
002Oil and greaseINST MAX <= 10 mg/L all year
002Flow, in conduit or thru treatment plant30DA AVG <= .216 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Mercury, total low level30DA GEO <= .38 ug/L all year
002Mercury, total low level30DA AVG <= .01 ug/L all year
002Solids, total dissolved30DA AVG report only all year
002Solids, total dissolvedDAILY MX report only 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 >= 100 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 >= 100 tox chronic all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspended30DA AVG <= 30 mg/L all year
004Solids, total suspendedMX 7D AV <= 70 mg/L all year
004Arsenic, total recoverable30DA AVG report only all year
004Iron, total recoverable30DA AVG <= 3500 mg/L all year
004Iron, total recoverable30DA AVG <= 1000 ug/L all year
004Iron, total recoverableMX 7D AV <= 7000 mg/L all year
004Iron, total recoverableDAILY MX <= 7000 ug/L all year
004Zinc, potentially dissolved30DA AVG report only all year
004Zinc, potentially dissolvedDAILY MX report only all year
004Copper, potentially dissolved30DA AVG report only all year
004Copper, potentially dissolvedDAILY MX report only all year
004Cadmium, potentially dissolvd30DA AVG report only all year
004Cadmium, potentially dissolvdDAILY MX report only all year
004Lead, potentially dissolvd30DA AVG report only all year
004Lead, potentially dissolvdDAILY MX report only all year
004Selenium, potentially dissolvd30DA AVG report only all year
004Selenium, potentially dissolvdDAILY MX report only all year
004Flow, in conduit or thru treatment plant30DA AVG <= .216 MGD all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Mercury, total low level30DA AVG 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