CANYON FUEL CO., LLC - SKYLINE

NPDES permit UT0023540 · Major NON-POTW · effective, expires 2030-10-31 · 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.

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

6values over a limit
0required values missing, on 0 form(s)
19of 97 forms filed late

Last period with anything received: 2026-07-31. Most often over: Iron, total [as Fe] (4), Solids, total dissolved (1), Oxygen, dissolved [DO] (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 (132)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001TurbidityDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedDAILY MX <= 70 mg/L all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Arsenic, total recoverableDAILY MX report only all year
001Selenium, total recoverableDAILY MX report only all year
001Iron, total [as Fe]DAILY MX <= 1 mg/L all year
001Nickel, total recoverableDAILY MX report only all year
001Silver total recoverableDAILY MX report only all year
001Zinc, total recoverableDAILY MX report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Lead, total recoverableDAILY MX report only all year
001Chromium, total recoverableDAILY MX report only all year
001Copper, total recoverableDAILY MX report only all year
001Solids, total dissolvedMX MO AV report only all year
001Solids, total dissolvedDAILY MX <= 1200 mg/L all year
001Solids, total dissolvedDAILY MX report only all year
001Mercury, total recoverableDAILY MX report only all year
001Flow, totalMX MO AV report only all year
001Flow, totalDAILY MX report only all year
001Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 Jan, Feb, Mar, Jul, Aug, Sep
001Pass/Fail Static Renewal 7Day Chronic Pimephales promelasDAILY MX <= 0 pass=0;fail=1 Apr, May, Jun, Oct, Nov, Dec
002Temperature, water deg. centigradeDAILY MX report only all year
002TurbidityDAILY MX report only all year
002Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMX MO AV report only all year
002Solids, total suspendedDAILY MX <= 70 mg/L all year
002Solids, settleableDAILY MX report only all year
002Oil & GreaseDAILY MX <= 10 mg/L all year
002Iron, total [as Fe]DAILY MX <= 1 mg/L all year
002Solids, total dissolvedMX MO AV report only all year
002Solids, total dissolvedDAILY MX <= 1200 mg/L all year
002Solids, total dissolvedMX MO AV report only all year
002Flow, totalMX MO AV report only all year
002Flow, totalDAILY MX report only all year
002Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
003Temperature, water deg. centigradeDAILY MX report only all year
003TurbidityDAILY MX report only all year
003Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
003pHDAILY MN >= 6.5 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMX MO AV report only all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Solids, settleableDAILY MX report only all year
003Oil & GreaseDAILY MX <= 10 mg/L all year
003Iron, total [as Fe]DAILY MX <= 1 mg/L all year
003Solids, total dissolvedMX MO AV report only all year
003Solids, total dissolvedDAILY MX <= 1200 mg/L all year
003Solids, total dissolvedMX MO AV report only all year
003Flow, totalMX MO AV report only all year
003Flow, totalDAILY MX report only all year
003Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
004Temperature, water deg. centigradeDAILY MX report only all year
004TurbidityDAILY MX report only all year
004Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMX MO AV report only all year
004Solids, total suspendedDAILY MX <= 70 mg/L all year
004Solids, settleableDAILY MX report only all year
004Oil & GreaseDAILY MX <= 10 mg/L all year
004Arsenic, total recoverableDAILY MX report only all year
004Selenium, total recoverableDAILY MX report only all year
004Iron, total [as Fe]DAILY MX <= 1 mg/L all year
004Nickel, total recoverableDAILY MX report only all year
004Silver total recoverableDAILY MX report only all year
004Zinc, total recoverableDAILY MX report only all year
004Aluminum, total recoverableDAILY MX report only all year
004Cadmium, total recoverableDAILY MX report only all year
004Lead, total recoverableDAILY MX report only all year
004Chromium, total recoverableDAILY MX report only all year
004Copper, total recoverableDAILY MX report only all year
004Solids, total dissolvedMX MO AV report only all year
004Solids, total dissolvedDAILY MX <= 1200 mg/L all year
004Solids, total dissolvedMX MO AV report only all year
004Mercury, total recoverableDAILY MX report only all year
004Flow, totalMX MO AV report only all year
004Flow, totalDAILY MX report only all year
004Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 Jan, Feb, Mar, Jul, Aug, Sep
004Pass/Fail Static Renewal 7Day Chronic Pimephales promelasDAILY MX <= 0 pass=0;fail=1 Apr, May, Jun, Oct, Nov, Dec
005Temperature, water deg. centigradeDAILY MX report only all year
005TurbidityDAILY MX report only all year
005Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMX MO AV report only all year
005Solids, total suspendedMX MO AV report only all year
005Solids, total suspendedDAILY MX <= 31 mg/L all year
005Solids, total suspendedDAILY MX <= 60 mg/L all year
005Oil & GreaseDAILY MX <= 10 mg/L all year
005Arsenic, total recoverableDAILY MX report only all year
005Selenium, total recoverableDAILY MX report only all year
005Arsenic, dissolved [as As]DAILY MX report only all year
005Cadmium, dissolved [as Cd]DAILY MX report only all year
005Chromium, dissolved [as Cr]DAILY MX report only all year
005Copper, dissolved [as Cu]DAILY MX report only all year
005Iron, total [as Fe]DAILY MX <= .45 mg/L all year
005Iron, total [as Fe]DAILY MX <= 2 mg/L all year
005Iron, dissolved [as Fe]DAILY MX report only all year
005Lead, dissolved [as Pb]DAILY MX report only all year
005Nickel, dissolved [as Ni]DAILY MX report only all year
005Nickel, total recoverableDAILY MX report only all year
005Silver, dissolved [as Ag]DAILY MX report only all year
005Silver total recoverableDAILY MX report only all year
005Zinc, dissolved [as Zn]DAILY MX report only all year
005Zinc, total recoverableDAILY MX report only all year
005Aluminum, total recoverableDAILY MX report only all year
005Aluminum, dissolved [as Al]DAILY MX report only all year
005Cadmium, total recoverableDAILY MX report only all year
005Lead, total recoverableDAILY MX report only all year
005Chromium, total recoverableDAILY MX report only all year
005Copper, total recoverableDAILY MX report only all year
005Selenium, dissolved [as Se]DAILY MX report only all year
005Solids, total dissolvedMX MO AV report only all year
005Solids, total dissolvedMX MO AV report only all year
005Solids, total dissolvedDAILY MX <= 235 mg/L all year
005Solids, total dissolvedDAILY MX <= 500 mg/L all year
005Solids, total dissolvedMX MO AV report only all year
005Solids, total dissolvedMX MO AV report only all year
005Mercury, dissolved [as Hg]DAILY MX report only all year
005Mercury, total recoverableDAILY MX report only all year
005Flow, totalMX MO AV report only all year
005Flow, totalDAILY MX report only all year
005Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 Jan, Feb, Mar, Jul, Aug, Sep
005Pass/Fail Static Renewal 7Day Chronic Pimephales promelasDAILY MX <= 0 pass=0;fail=1 Apr, May, Jun, Oct, Nov, Dec

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