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Canyon Fuel LLC SUFCO Mine

Bituminous Coal And Lignite - Surface, major discharger, Sevier County, Utah. NPDES permit UT0022918, in force until Jan 31, 2028. Last 12 months: over a limit once (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (18 values), outfall 002 form A monthly (19 values), outfall 003 form A monthly (18 values), outfall SUM form A monthly (1 value), outfall 001 form P quarterly, outfall 001 form W quarterly, and 3 more forms
Renewal application due
Aug 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 22 of 68 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
April 2026Iron, total [as Fe], daily maximum1.31 mg/L≤ 1 mg/L31%

Limits in force (93)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Turbiditydaily maximumreport only (NTU)all year001
Oxygen, dissolved [DO]daily minimum≥ 6.5 mg/Lall year001
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendeddaily maximum≤ 70 mg/Lall year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Oil and greasedaily maximum≤ 10 mg/Lall year001
Floating solids, waste or visible foam-visualdaily maximumreport only (N=0;Y=1)all year001
Sanitary waste discharged-assessmntdaily maximumreport only (N=0;Y=1)all year001
Flow, in conduit or thru treatment plantmonthly average≤ .01 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Solids, total dissolved30-day averagereport only (mg/L)all year001
Solids, total dissolveddaily maximum≤ 1422 mg/Lall year001
Solids, total dissolved30-day averagereport only (ton/d)all year001
Solids, total dissolveddaily maximumreport only (ton/d)all year001
Mercury, total [as Hg]daily maximumreport only (mg/L)all year001
Boron, totaldaily maximumreport only (mg/L)all year001
Oil and grease visualdaily maximumreport only (N=0;Y=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximumreport only (pass=0;fail=1)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
Turbiditydaily maximumreport only (NTU)all year002
Oxygen, dissolved [DO]daily minimum≥ 6.5 mg/Lall year002
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendeddaily maximum≤ 70 mg/Lall year002
Solids, settleabledaily maximum≤ .5 mg/Lall year002
Arsenic, total [as As]daily maximumreport only (mg/L)all year002
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year002
Chromium, total [as Cr]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year002
Lead, total [as Pb]daily maximumreport only (mg/L)all year002
Nickel, total [as Ni]daily maximumreport only (mg/L)all year002
Silver, total [as Ag]daily maximumreport only (mg/L)all year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Oil and greasedaily maximum≤ 10 mg/Lall year002
Floating solids, waste or visible foam-visualdaily maximumreport only (N=0;Y=1)all year002
Sanitary waste discharged-assessmntdaily maximumreport only (N=0;Y=1)all year002
Flow, in conduit or thru treatment plantmonthly average≤ .5 MGDall year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Solids, total dissolved30-day averagereport only (mg/L)all year002
Solids, total dissolveddaily maximum≤ 1204 mg/Lall year002
Solids, total dissolved30-day averagereport only (ton/d)all year002
Solids, total dissolveddaily maximumreport only (ton/d)all year002
Mercury, total [as Hg]daily maximumreport only (mg/L)all year002
Boron, totaldaily maximumreport only (mg/L)all year002
Oil and grease visualdaily maximumreport only (N=0;Y=1)all year002
Temperature, water deg. centigradedaily maximumreport only (deg C)all year003
Turbiditydaily maximumreport only (NTU)all year003
Oxygen, dissolved [DO]daily minimum≥ 6.5 mg/Lall year003
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year003
pHdaily minimum≥ 6.5 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendeddaily maximum≤ 70 mg/Lall year003
Arsenic, total [as As]daily maximumreport only (mg/L)all year003
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year003
Chromium, total [as Cr]daily maximumreport only (mg/L)all year003
Copper, total [as Cu]daily maximumreport only (mg/L)all year003
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year003
Lead, total [as Pb]daily maximumreport only (mg/L)all year003
Nickel, total [as Ni]daily maximumreport only (mg/L)all year003
Silver, total [as Ag]daily maximumreport only (mg/L)all year003
Zinc, total [as Zn]daily maximumreport only (mg/L)all year003
Selenium, total [as Se]daily maximumreport only (mg/L)all year003
Oil and greasedaily maximum≤ 10 mg/Lall year003
Floating solids, waste or visible foam-visualdaily maximumreport only (N=0;Y=1)all year003
Sanitary waste discharged-assessmntdaily maximumreport only (N=0;Y=1)all year003
Flow, in conduit or thru treatment plantmaximum monthly average≤ 8 MGDall year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Solids, total dissolved30-day averagereport only (mg/L)all year003
Solids, total dissolveddaily maximum≤ 1213 mg/Lall year003
Solids, total dissolved30-day averagereport only (ton/d)all year003
Solids, total dissolveddaily maximumreport only (ton/d)all year003
Mercury, total [as Hg]daily maximumreport only (mg/L)all year003
Boron, totaldaily maximumreport only (mg/L)all year003
Oil and grease visualdaily maximumreport only (N=0;Y=1)all year003
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)all year003
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximumreport only (pass=0;fail=1)all year003
Solids, total dissolveddaily maximumreport only (ton/d)all yearSUM

New limits from Nov 1, 2026

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Solids, total dissolved, daily maximum1210 mg/Ltighter796 mg/L (11 values)0.658×

How strict are these limits?

Cited limits by parameter: Utah's rules and the federal ones.

Same industry: the 13 Coal Mining permits in Utah.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/UT0022918 · MCP: https://passage-data.com/mcp