Sunnyside Cogeneration Assoc. — NPDES permit UT0024759: limits, due date and EPA's record

Bituminous Coal And Lignite - Surface, Sunnyside, Utah. NPDES permit UT0024759, in force until Feb 28, 2029. Last 12 months: no values over a limit, 12 of 132 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (160)

Parameter	Statistic	Limit	Months	Outfall
Flow rate	maximum monthly average	report only (MGD)	all year	002
Flow rate	daily maximum	report only (MGD)	all year	002
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	002
pH	minimum	≥ 6.5 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	002
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	002
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	002
Oil and grease	daily maximum	≤ 10 mg/L	all year	002
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	002
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	002
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	002
Flow rate	maximum monthly average	report only (MGD)	all year	003
Flow rate	daily maximum	report only (MGD)	all year	003
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	003
pH	minimum	≥ 6.5 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	003
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	003
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	003
Oil and grease	daily maximum	≤ 10 mg/L	all year	003
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	003
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	003
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	003
Flow rate	maximum monthly average	≤ .12 MGD	all year	007
Flow rate	daily maximum	report only (MGD)	all year	007
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	007
pH	minimum	≥ 6.5 SU	all year	007
pH	maximum	≤ 9 SU	all year	007
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	007
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	007
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	007
Solids, settleable	daily maximum	report only (mL/L)	all year	007
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	007
Oil and grease	daily maximum	≤ 10 mg/L	all year	007
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	007
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	007
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	007
Oil and grease visual	daily maximum	≤ 0 pass=0;fail=1	all year	007
Flow rate	maximum monthly average	≤ .13 MGD	all year	008
Flow rate	daily maximum	report only (MGD)	all year	008
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	008
pH	minimum	≥ 6.5 SU	all year	008
pH	maximum	≤ 9 SU	all year	008
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	008
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	008
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	008
Solids, settleable	daily maximum	report only (mL/L)	all year	008
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	008
Oil and grease	daily maximum	≤ 10 mg/L	all year	008
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	008
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	008
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	008
Oil and grease visual	daily maximum	≤ 0 pass=0;fail=1	all year	008
Flow rate	maximum monthly average	≤ .14 MGD	all year	009
Flow rate	daily maximum	report only (MGD)	all year	009
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	009
pH	minimum	≥ 6.5 SU	all year	009
pH	maximum	≤ 9 SU	all year	009
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	009
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	009
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	009
Solids, settleable	daily maximum	report only (mL/L)	all year	009
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	009
Oil and grease	daily maximum	≤ 10 mg/L	all year	009
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	009
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	009
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	009
Oil and grease visual	daily maximum	≤ 0 N=0;Y=1	all year	009
Flow rate	maximum monthly average	≤ .29 MGD	all year	012
Flow rate	daily maximum	report only (MGD)	all year	012
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	012
pH	minimum	≥ 6.5 SU	all year	012
pH	maximum	≤ 9 SU	all year	012
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	012
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	012
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	012
Solids, settleable	daily maximum	report only (mL/L)	all year	012
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	012
Oil and grease	daily maximum	≤ 10 mg/L	all year	012
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	012
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	012
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	012
Oil and grease visual	daily maximum	≤ 0 pass=0;fail=1	all year	012
Flow rate	maximum monthly average	≤ .21 MGD	all year	013
Flow rate	daily maximum	report only (MGD)	all year	013
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	013
pH	minimum	≥ 6.5 SU	all year	013
pH	maximum	≤ 9 SU	all year	013
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	013
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	013
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	013
Oil and grease	maximum monthly average	≤ 15 mg/L	all year	013
Oil and grease	daily maximum	≤ 20 mg/L	all year	013
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	013
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	013
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	013
Flow rate	maximum monthly average	≤ .09 MGD	all year	014
Flow rate	daily maximum	report only (MGD)	all year	014
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	014
pH	minimum	≥ 6.5 SU	all year	014
pH	maximum	≤ 9 SU	all year	014
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	014
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	014
Solids, total suspended	daily maximum	≤ 50 mg/L	all year	014
Oil and grease	maximum monthly average	≤ 15 mg/L	all year	014
Oil and grease	daily maximum	≤ 20 mg/L	all year	014
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	014
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	014
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	014
Flow rate	maximum monthly average	< .45 MGD	all year	016
Flow rate	daily maximum	report only (MGD)	all year	016
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	016
pH	minimum	≥ 6.5 SU	all year	016
pH	maximum	≤ 9 SU	all year	016
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	016
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	016
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	016
Solids, settleable	daily maximum	report only (mL/L)	all year	016
Iron, total [as Fe]	daily maximum	≤ 1 mg/L	all year	016
Oil and grease	daily maximum	≤ 10 mg/L	all year	016
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	016
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	016
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	016
Oil and grease visual	daily maximum	≤ 0 pass=0;fail=1	all year	016
Flow rate	maximum monthly average	≤ .15 MGD	all year	017
Flow rate	daily maximum	report only (MGD)	all year	017
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	017
pH	minimum	≥ 6.5 SU	all year	017
pH	maximum	≤ 9 SU	all year	017
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	017
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	017
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	017
Chromium, total [as Cr]	maximum monthly average	≤ .03 mg/L	all year	017
Chromium, total [as Cr]	daily maximum	≤ .03 mg/L	all year	017
Zinc, total [as Zn]	maximum monthly average	≤ .3 mg/L	all year	017
Zinc, total [as Zn]	daily maximum	≤ .3 mg/L	all year	017
Oil and grease	maximum monthly average	≤ 15 mg/L	all year	017
Oil and grease	daily maximum	≤ 20 mg/L	all year	017
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	017
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	017
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	017
Flow rate	maximum monthly average	≤ .17 MGD	all year	018
Flow rate	daily maximum	report only (MGD)	all year	018
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	018
pH	daily minimum	≥ 6.5 SU	all year	018
pH	daily maximum	≤ 9 SU	all year	018
Solids, total suspended	maximum monthly average	≤ 25 mg/L	all year	018
Solids, total suspended	maximum weekly average	≤ 35 mg/L	all year	018
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	018
Chromium, total [as Cr]	maximum monthly average	≤ .03 mg/L	all year	018
Chromium, total [as Cr]	daily maximum	≤ .03 mg/L	all year	018
Zinc, total recoverable	maximum monthly average	≤ .3 mg/L	all year	018
Zinc, total recoverable	daily maximum	≤ .3 mg/L	all year	018
Oil and grease	maximum monthly average	≤ 15 mg/L	all year	018
Oil and grease	daily maximum	≤ 20 mg/L	all year	018
Sanitary waste discharged-assessmnt	daily maximum	≤ 0 N=0;Y=1	all year	018
Solids, total dissolved	daily maximum	≤ 1650 mg/L	all year	018
Solids, total dissolved	daily maximum	≤ 1 ton/d	all year	018
Solids, total dissolved	daily maximum	≤ 2000 lb/d	all year	SUM

How strict are these limits?

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