Seneca Coal Co LLC

NPDES permit CO0000221 · Major NON-POTW · administratively continued, expires 2011-10-31 · 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.

This permit expired on 2011-10-31 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
46required values missing, on 5 form(s)
3of 62 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 27 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (302)

OutfallParameterStatisticLimitMonths
005pHMINIMUM >= 6.5 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, settleable30DA AVG report only all year
005Solids, settleableDAILY MX <= .5 mL/L all year
005Iron, total recoverable30DA AVG <= 3000 ug/L all year
005Iron, total recoverable30DA AVG <= 1000 ug/L all year
005Iron, total recoverableDAILY MX <= 6000 ug/L all year
005Iron, total recoverableDAILY MX report only all year
005Oil and greaseINST MAX <= 10 mg/L all year
005Flow, in conduit or thru treatment plant30DA AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Solids, total dissolvedQRTR AVG report only all year
005Solids, total dissolvedDAILY MX report only all year
005Oil and grease visualINST MAX report only all year
006pHMINIMUM >= 6.5 SU all year
006pHMAXIMUM <= 9 SU all year
006Solids, settleable30DA AVG report only all year
006Solids, settleableDAILY MX <= .5 mL/L all year
006Iron, total recoverable30DA AVG <= 3000 ug/L all year
006Iron, total recoverable30DA AVG <= 1000 ug/L all year
006Iron, total recoverable30DA AVG <= 1000 ug/L all year
006Iron, total recoverableDAILY MX <= 6000 ug/L all year
006Iron, total recoverableDAILY MX report only all year
006Iron, total recoverableDAILY MX report only all year
006Manganese, potentially dissolvdQRTR AVG report only all year
006Manganese, potentially dissolvd30DA AVG report only all year
006Manganese, potentially dissolvdDAILY MX report only all year
006Manganese, potentially dissolvdDAILY MX report only all year
006Selenium, potentially dissolvd30DA AVG <= 4.6 ug/L all year
006Selenium, potentially dissolvdDAILY MX report only all year
006Oil and greaseINST MAX <= 10 mg/L all year
006Flow, in conduit or thru treatment plant30DA AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Solids, total dissolvedQRTR AVG report only all year
006Solids, total dissolvedDAILY MX report only all year
006Oil and grease visualINST MAX report only all year
008pHMINIMUM >= 6.5 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, settleable30DA AVG report only all year
008Solids, settleableDAILY MX <= .5 mL/L all year
008Iron, total recoverable30DA AVG <= 1000 ug/L all year
008Iron, total recoverableDAILY MX report only all year
008Manganese, potentially dissolvdQRTR AVG report only all year
008Manganese, potentially dissolvdDAILY MX report only all year
008Selenium, potentially dissolvd30DA AVG report only all year
008Selenium, potentially dissolvdDAILY MX report only all year
008Oil and greaseINST MAX <= 10 mg/L all year
008Flow, in conduit or thru treatment plant30DA AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Solids, total dissolvedQRTR AVG report only all year
008Solids, total dissolvedDAILY MX report only all year
008Oil and grease visualINST MAX report only all year
009pHMINIMUM >= 6.5 SU all year
009pHMAXIMUM <= 9 SU all year
009Solids, settleable30DA AVG report only all year
009Solids, settleableDAILY MX <= .5 mL/L all year
009Oil and greaseINST MAX <= 10 mg/L all year
009Flow, in conduit or thru treatment plant30DA AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Solids, total dissolvedQRTR AVG report only all year
009Solids, total dissolvedDAILY MX report only all year
009Oil and grease visualINST MAX report only all year
010pHMINIMUM >= 6.5 SU all year
010pHMAXIMUM <= 9 SU all year
010Solids, settleable30DA AVG report only all year
010Solids, settleableDAILY MX <= .5 mL/L all year
010Iron, total recoverable30DA AVG <= 3000 ug/L all year
010Iron, total recoverable30DA AVG <= 1000 ug/L all year
010Iron, total recoverable30DA AVG <= 1000 ug/L all year
010Iron, total recoverableDAILY MX <= 6000 ug/L all year
010Iron, total recoverableDAILY MX report only all year
010Iron, total recoverableDAILY MX report only all year
010Copper, potentially dissolved30DA AVG report only all year
010Copper, potentially dissolvedDAILY MX report only all year
010Selenium, potentially dissolvd30DA AVG report only all year
010Selenium, potentially dissolvdDAILY MX report only all year
010Oil and greaseINST MAX <= 10 mg/L all year
010Flow, in conduit or thru treatment plant30DA AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Solids, total dissolvedQRTR AVG report only all year
010Solids, total dissolvedDAILY MX report only all year
010Oil and grease visualINST MAX report only all year
011pHMINIMUM >= 6.5 SU all year
011pHMAXIMUM <= 9 SU all year
011Solids, settleable30DA AVG report only all year
011Solids, settleableDAILY MX <= .5 mL/L all year
011Iron, total recoverable30DA AVG <= 3000 ug/L all year
011Iron, total recoverable30DA AVG <= 1000 ug/L all year
011Iron, total recoverable30DA AVG <= 1000 ug/L all year
011Iron, total recoverableDAILY MX <= 6000 ug/L all year
011Iron, total recoverableDAILY MX report only all year
011Iron, total recoverableDAILY MX report only all year
011Oil and greaseINST MAX <= 10 mg/L all year
011Flow, in conduit or thru treatment plant30DA AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Solids, total dissolvedQRTR AVG report only all year
011Solids, total dissolvedDAILY MX report only all year
011Oil and grease visualINST MAX report only all year
012pHMINIMUM >= 6.5 SU all year
012pHMAXIMUM <= 9 SU all year
012Solids, total suspended30DA AVG <= 35 mg/L all year
012Solids, total suspendedDAILY MX <= 70 mg/L all year
012Solids, settleable30DA AVG report only all year
012Solids, settleableDAILY MX <= .5 mL/L all year
012Iron, total recoverable30DA AVG <= 1000 ug/L all year
012Iron, total recoverableDAILY MX report only all year
012Iron, total [as Fe]30DA AVG <= 3000 ug/L all year
012Iron, total [as Fe]DAILY MX <= 6000 ug/L all year
012Manganese, potentially dissolvdQRTR AVG report only all year
012Manganese, potentially dissolvdDAILY MX report only all year
012Selenium, potentially dissolvd30DA AVG report only all year
012Selenium, potentially dissolvdDAILY MX report only all year
012Oil and greaseINST MAX <= 10 mg/L all year
012Flow, in conduit or thru treatment plant30DA AVG report only all year
012Flow, in conduit or thru treatment plantDAILY MX report only all year
012Solids, total dissolvedQRTR AVG report only all year
012Solids, total dissolvedDAILY MX report only all year
012Oil and grease visualINST MAX report only all year
013pHMINIMUM >= 6.5 SU all year
013pHMINIMUM >= 6.5 SU all year
013pHMAXIMUM <= 9 SU all year
013pHMAXIMUM <= 9 SU all year
013Solids, total suspended30DA AVG <= 35 mg/L all year
013Solids, total suspendedDAILY MX <= 70 mg/L all year
013Solids, settleable30DA AVG report only all year
013Solids, settleableDAILY MX <= .5 mL/L all year
013Iron, total [as Fe]30DA AVG <= 3000 ug/L all year
013Iron, total [as Fe]DAILY MX <= 6000 ug/L all year
013Oil and greaseINST MAX <= 10 mg/L all year
013Flow, in conduit or thru treatment plant30DA AVG report only all year
013Flow, in conduit or thru treatment plant30DA AVG report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Solids, total dissolvedQRTR AVG report only all year
013Solids, total dissolvedDAILY MX report only all year
013Oil and grease visualINST MAX report only all year
014pHMINIMUM >= 6.5 SU all year
014pHMINIMUM >= 6.5 SU all year
014pHMAXIMUM <= 9 SU all year
014pHMAXIMUM <= 9 SU all year
014Solids, total suspended30DA AVG <= 35 mg/L all year
014Solids, total suspendedDAILY MX <= 70 mg/L all year
014Solids, settleable30DA AVG report only all year
014Solids, settleableDAILY MX <= .5 mL/L all year
014Iron, total [as Fe]30DA AVG <= 3000 ug/L all year
014Iron, total [as Fe]DAILY MX <= 6000 ug/L all year
014Oil and greaseINST MAX <= 10 mg/L all year
014Flow, in conduit or thru treatment plant30DA AVG report only all year
014Flow, in conduit or thru treatment plant30DA AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Solids, total dissolvedQRTR AVG report only all year
014Solids, total dissolvedDAILY MX report only all year
014Oil and grease visualINST MAX report only all year
015pHMINIMUM >= 6.5 SU all year
015pHMAXIMUM <= 9 SU all year
015Solids, settleable30DA AVG report only all year
015Solids, settleableDAILY MX <= .5 mL/L all year
015Oil and greaseINST MAX <= 10 mg/L all year
015Flow, in conduit or thru treatment plant30DA AVG report only all year
015Flow, in conduit or thru treatment plantDAILY MX report only all year
015Solids, total dissolvedQRTR AVG report only all year
015Solids, total dissolvedDAILY MX report only all year
015Oil and grease visualINST MAX report only all year
016pHMINIMUM >= 6.5 SU all year
016pHMAXIMUM <= 9 SU all year
016Solids, total suspended30DA AVG <= 35 mg/L all year
016Solids, total suspendedDAILY MX <= 70 mg/L all year
016Solids, settleable30DA AVG report only all year
016Solids, settleableDAILY MX <= .5 mL/L all year
016Iron, total recoverable30DA AVG <= 3000 ug/L all year
016Iron, total recoverable30DA AVG <= 1000 ug/L all year
016Iron, total recoverable30DA AVG <= 1000 ug/L all year
016Iron, total recoverableDAILY MX <= 6000 ug/L all year
016Iron, total recoverableDAILY MX report only all year
016Iron, total recoverableDAILY MX report only all year
016Iron, total [as Fe]30DA AVG <= 3000 ug/L all year
016Iron, total [as Fe]DAILY MX <= 6000 ug/L all year
016Selenium, potentially dissolvd30DA AVG report only all year
016Selenium, potentially dissolvdDAILY MX report only all year
016Oil and greaseINST MAX <= 10 mg/L all year
016Flow, in conduit or thru treatment plant30DA AVG report only all year
016Flow, in conduit or thru treatment plantDAILY MX report only all year
016Solids, total dissolvedQRTR AVG report only all year
016Solids, total dissolvedDAILY MX report only all year
016Oil and grease visualINST MAX report only all year
017pHMINIMUM >= 6.5 SU all year
017pHMINIMUM >= 6.5 SU all year
017pHMAXIMUM <= 9 SU all year
017pHMAXIMUM <= 9 SU all year
017Solids, total suspended30DA AVG <= 35 mg/L all year
017Solids, total suspendedDAILY MX <= 70 mg/L all year
017Solids, settleable30DA AVG report only all year
017Solids, settleableDAILY MX <= .5 mL/L all year
017Iron, total recoverable30DA AVG report only all year
017Iron, total recoverable30DA AVG <= 1000 ug/L all year
017Iron, total recoverableDAILY MX report only all year
017Iron, total recoverableDAILY MX report only all year
017Iron, total [as Fe]30DA AVG <= 3000 ug/L all year
017Iron, total [as Fe]DAILY MX <= 6000 ug/L all year
017Selenium, potentially dissolvd30DA AVG report only all year
017Selenium, potentially dissolvdDAILY MX report only all year
017Oil and greaseINST MAX <= 10 mg/L all year
017Flow, in conduit or thru treatment plant30DA AVG report only all year
017Flow, in conduit or thru treatment plant30DA AVG report only all year
017Flow, in conduit or thru treatment plantDAILY MX report only all year
017Flow, in conduit or thru treatment plantDAILY MX report only all year
017Solids, total dissolvedQRTR AVG report only all year
017Solids, total dissolvedDAILY MX report only all year
017Oil and grease visualINST MAX report only all year
MN0Zinc, potentially dissolved30DA AVG report only all year
MN0Zinc, potentially dissolvedDAILY MX report only all year
MN0Silver, potentially dissolved30DA AVG report only all year
MN0Silver, potentially dissolvedDAILY MX report only all year
MN0Copper, potentially dissolved30DA AVG report only all year
MN0Copper, potentially dissolvedDAILY MX report only all year
MN0Cadmium, potentially dissolvd30DA AVG report only all year
MN0Cadmium, potentially dissolvdDAILY MX report only all year
MN0Chromium, trivalent, potentially dissolvd30DA AVG report only all year
MN0Chromium, trivalent, potentially dissolvdDAILY MX report only all year
MN0Lead, potentially dissolvd30DA AVG report only all year
MN0Lead, potentially dissolvdDAILY MX report only all year
MN0Nickel, potentially dissolvd30DA AVG report only all year
MN0Nickel, potentially dissolvdDAILY MX report only all year
MN0Selenium, potentially dissolvd30DA AVG report only all year
MN0Selenium, potentially dissolvdDAILY MX report only all year
MN0Mercury, total [as Hg]30DA AVG report only all year
MN0Mercury, total [as Hg]DAILY MX report only all year
MN1Arsenic, total recoverable30DA AVG report only all year
MN1Arsenic, total recoverableDAILY MX report only all year
MN1Iron, total recoverable30DA AVG report only all year
MN1Iron, total recoverableDAILY MX report only all year
MN1Zinc, potentially dissolved30DA AVG report only all year
MN1Zinc, potentially dissolved30DA AVG report only all year
MN1Zinc, potentially dissolvedDAILY MX report only all year
MN1Zinc, potentially dissolvedDAILY MX report only all year
MN1Silver, potentially dissolved30DA AVG report only all year
MN1Silver, potentially dissolved30DA AVG report only all year
MN1Silver, potentially dissolvedDAILY MX report only all year
MN1Silver, potentially dissolvedDAILY MX report only all year
MN1Copper, potentially dissolved30DA AVG report only all year
MN1Copper, potentially dissolved30DA AVG report only all year
MN1Copper, potentially dissolvedDAILY MX report only all year
MN1Copper, potentially dissolvedDAILY MX report only all year
MN1Cadmium, potentially dissolvd30DA AVG report only all year
MN1Cadmium, potentially dissolvd30DA AVG report only all year
MN1Cadmium, potentially dissolvdDAILY MX report only all year
MN1Cadmium, potentially dissolvdDAILY MX report only all year
MN1Chromium, trivalent, potentially dissolvd30DA AVG report only all year
MN1Chromium, trivalent, potentially dissolvd30DA AVG report only all year
MN1Chromium, trivalent, potentially dissolvdDAILY MX report only all year
MN1Chromium, trivalent, potentially dissolvdDAILY MX report only all year
MN1Lead, potentially dissolvd30DA AVG report only all year
MN1Lead, potentially dissolvd30DA AVG report only all year
MN1Lead, potentially dissolvdDAILY MX report only all year
MN1Lead, potentially dissolvdDAILY MX report only all year
MN1Manganese, potentially dissolvd30DA AVG report only all year
MN1Manganese, potentially dissolvdDAILY MX report only all year
MN1Nickel, potentially dissolvd30DA AVG report only all year
MN1Nickel, potentially dissolvd30DA AVG report only all year
MN1Nickel, potentially dissolvdDAILY MX report only all year
MN1Nickel, potentially dissolvdDAILY MX report only all year
MN1Selenium, potentially dissolvd30DA AVG report only all year
MN1Selenium, potentially dissolvd30DA AVG report only all year
MN1Selenium, potentially dissolvdDAILY MX report only all year
MN1Selenium, potentially dissolvdDAILY MX report only all year
MN1Mercury, total [as Hg]30DA AVG report only all year
MN1Mercury, total [as Hg]30DA AVG report only all year
MN1Mercury, total [as Hg]DAILY MX report only all year
MN1Mercury, total [as Hg]DAILY MX report only all year
WTEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WTEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WTEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WTEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WTEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WTEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WTEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WTEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WTEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WTEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WTEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WTEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WTE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
WTE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
WTE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
WTE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
WTE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
WTE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE report only all year
WTE%Effect Static Renewal 7Day Chronic Pimephales promelasSINGSAMP report only all year
WTE%Effect Static Renewal 7Day Chronic Pimephales promelasSINGSAMP report only all year
WTE%Effect Static Renewal 7Day Chronic Pimephales promelasSINGSAMP report only all year
WTE%Effect Static Renewal 7Day Chronic Pimephales promelasMN VALUE report only all year
WTE%Effect Static Renewal 7Day Chronic Pimephales promelasMN VALUE report only all year
WTE%Effect Static Renewal 7Day Chronic Pimephales promelasMN VALUE report only all year
WYEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WYEToxicity [chronic], Ceriodaphnia dubiaSINGSAMP report only all year
WYEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WYEToxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP report only all year
WYE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaSINGSAMP report only all year
WYE%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMN VALUE >= 100 % all year
WYE%Effect Static Renewal 7Day Chronic Pimephales promelasSINGSAMP report only all year
WYE%Effect Static Renewal 7Day Chronic Pimephales promelasMN VALUE >= 100 % all year

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