MAPLE CREEK MINING INC

NPDES permit PA0215520 · Minor NON-POTW · expired, expires 2016-09-05 · 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 2016-09-05 and is expired: 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

41values over a limit
234required values missing, on 27 form(s)
6of 27 forms filed late

Last period with anything received: 2026-03-31. Most often over: Osmotic pressure, total, unf whl wtr (36), Aluminum, total [as Al] (5).

Reporting

Reports are due about 56 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (72)

OutfallParameterStatisticLimitMonths
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Alkalinity, total [as CaCO3]INST MAX report only all year
003Acidity, total [as CaCO3]INST MAX report only all year
003Solids, total suspendedMO AVG <= 35 mg/L all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Solids, total suspendedINST MAX <= 90 mg/L all year
003Sulfate, total [as SO4]DAILY MX report only all year
003Sulfate, total [as SO4]INST MAX report only all year
003Iron, total [as Fe]MO AVG <= 1.52 mg/L all year
003Iron, total [as Fe]DAILY MX <= 2.38 mg/L all year
003Iron, total [as Fe]INST MAX <= 3.8 mg/L all year
003Manganese, total [as Mn]MO AVG <= .65 mg/L all year
003Manganese, total [as Mn]DAILY MX <= 1.02 mg/L all year
003Manganese, total [as Mn]INST MAX <= 2 mg/L all year
003Aluminum, total [as Al]MO AVG <= .49 mg/L all year
003Aluminum, total [as Al]DAILY MX <= .76 mg/L all year
003Aluminum, total [as Al]INST MAX <= .76 mg/L all year
003Flow, in conduit or thru treatment plantINST MAX report only all year
003Alkalinity - Acidity [as CaCO3]INST MIN >= 0 mg/L all year
003Solids, total dissolvedINST MAX report only all year
003Osmotic pressure, total, unf whl wtrMO AVG <= 50 mOsm/kg all year
003Osmotic pressure, total, unf whl wtrDAILY MX <= 50 mOsm/kg all year
003Osmotic pressure, total, unf whl wtrINST MAX <= 50 mOsm/kg all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Alkalinity, total [as CaCO3]INST MAX report only all year
004Acidity, total [as CaCO3]INST MAX report only all year
004Solids, total suspendedMO AVG <= 35 mg/L all year
004Solids, total suspendedDAILY MX <= 70 mg/L all year
004Solids, total suspendedINST MAX <= 90 mg/L all year
004Sulfate, total [as SO4]DAILY MX report only all year
004Sulfate, total [as SO4]INST MAX report only all year
004Iron, total [as Fe]MO AVG <= 1.52 mg/L all year
004Iron, total [as Fe]DAILY MX <= 2.38 mg/L all year
004Iron, total [as Fe]INST MAX <= 3.8 mg/L all year
004Manganese, total [as Mn]MO AVG <= .65 mg/L all year
004Manganese, total [as Mn]DAILY MX <= 1.02 mg/L all year
004Manganese, total [as Mn]INST MAX <= 2 mg/L all year
004Aluminum, total [as Al]MO AVG <= .49 mg/L all year
004Aluminum, total [as Al]DAILY MX <= .76 mg/L all year
004Aluminum, total [as Al]INST MAX <= .76 mg/L all year
004Flow, in conduit or thru treatment plantINST MAX report only all year
004Alkalinity - Acidity [as CaCO3]INST MIN >= 0 mg/L all year
004Solids, total dissolvedINST MAX report only all year
004Osmotic pressure, total, unf whl wtrMO AVG <= 50 mOsm/kg all year
004Osmotic pressure, total, unf whl wtrDAILY MX <= 50 mOsm/kg all year
004Osmotic pressure, total, unf whl wtrINST MAX <= 50 mOsm/kg all year
012pHINST MIN >= 6 SU all year
012pHINST MAX <= 9 SU all year
012Alkalinity, total [as CaCO3]INST MAX report only all year
012Acidity, total [as CaCO3]INST MAX report only all year
012Solids, total suspendedMO AVG <= 35 mg/L all year
012Solids, total suspendedDAILY MX <= 70 mg/L all year
012Solids, total suspendedINST MAX <= 90 mg/L all year
012Sulfate, total [as SO4]DAILY MX report only all year
012Sulfate, total [as SO4]INST MAX report only all year
012Iron, total [as Fe]MO AVG <= 1.52 mg/L all year
012Iron, total [as Fe]DAILY MX <= 2.38 mg/L all year
012Iron, total [as Fe]INST MAX <= 3.8 mg/L all year
012Manganese, total [as Mn]MO AVG <= .65 mg/L all year
012Manganese, total [as Mn]DAILY MX <= 1.02 mg/L all year
012Manganese, total [as Mn]INST MAX <= 2 mg/L all year
012Aluminum, total [as Al]MO AVG <= .49 mg/L all year
012Aluminum, total [as Al]DAILY MX <= .76 mg/L all year
012Aluminum, total [as Al]INST MAX <= .76 mg/L all year
012Flow, in conduit or thru treatment plantINST MAX report only all year
012Alkalinity - Acidity [as CaCO3]INST MIN >= 0 mg/L all year
012Solids, total dissolvedINST MAX report only all year
012Osmotic pressure, total, unf whl wtrMO AVG <= 50 mOsm/kg all year
012Osmotic pressure, total, unf whl wtrDAILY MX <= 50 mOsm/kg all year
012Osmotic pressure, total, unf whl wtrINST MAX <= 50 mOsm/kg 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