S.E.W. FRIEL WYE MILLS

NPDES permit MD0000043 · Minor NON-POTW · effective, expires 2026-09-30 · 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

5values over a limit
26required values missing, on 6 form(s)
0of 26 forms filed late

Last period with anything received: 2026-06-30. Most often over: Nitrogen, nitrate total [as NO3] (3), Nitrogen, total [as N] (2).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MD permits in EPA's filings — check your permit).

Limits in force (111)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 35 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 613 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]ANNL MAX report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX <= 2 mg/L all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX <= 35 lb/d all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]ANNL MAX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualDAILY MX <= .1 mg/L all year
001Temp. diff. between intake and dischargeDAILY MX <= 0 deg F all year
002Nitrogen, total [as N]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
BKGpHANNL AVG report only all year
BKGpHANNL AVG report only all year
BKGNitrogen, total [as N]ANNL AVG report only all year
BKGNitrogen, total [as N]ANNL AVG report only all year
BKGNitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
BKGNitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
BKGPhosphorus, total [as P]ANNL AVG report only all year
BKGPhosphorus, total [as P]ANNL AVG report only all year
BKGChloride [as Cl]ANNL AVG report only all year
BKGChloride [as Cl]ANNL AVG report only all year
BKGSolids, total dissolvedANNL AVG report only all year
BKGSolids, total dissolvedANNL AVG report only all year
BKGNitrogen, nitrate total [as NO3]ANNL AVG report only all year
BKGNitrogen, nitrate total [as NO3]ANNL AVG report only all year
BKGNitrogen, nitrite total [as NO2]ANNL AVG report only all year
BKGNitrogen, nitrite total [as NO2]ANNL AVG report only all year
BKGColiform, fecal generalANNL AVG report only all year
BKGColiform, fecal generalANNL AVG report only all year
MW1pHANNL AVG report only all year
MW1pHANNL AVG report only all year
MW1Nitrogen, total [as N]ANNL MAX <= 10 mg/L all year
MW1Nitrogen, total [as N]ANNL MAX <= 10 mg/L all year
MW1Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW1Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW1Phosphorus, total [as P]ANNL AVG report only all year
MW1Phosphorus, total [as P]ANNL AVG report only all year
MW1Chloride [as Cl]ANNL MAX <= 250 mg/L all year
MW1Chloride [as Cl]ANNL MAX <= 250 mg/L all year
MW1Solids, total dissolvedANNL MAX <= 500 mg/L all year
MW1Solids, total dissolvedANNL MAX <= 500 mg/L all year
MW1Nitrogen, nitrate total [as NO3]ANNL MAX <= 10 mg/L all year
MW1Nitrogen, nitrate total [as NO3]ANNL MAX <= 10 mg/L all year
MW1Nitrogen, nitrite total [as NO2]ANNL MAX <= 1 mg/L all year
MW1Nitrogen, nitrite total [as NO2]ANNL MAX <= 1 mg/L all year
MW1Coliform, fecal generalANNL MAX <= 2 MPN/100mL all year
MW1Coliform, fecal generalANNL MAX <= 2 MPN/100mL all year
MW2pHANNL AVG report only all year
MW2pHANNL AVG report only all year
MW2Nitrogen, total [as N]ANNL AVG < 10 mg/L all year
MW2Nitrogen, total [as N]ANNL AVG < 10 mg/L all year
MW2Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW2Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW2Phosphorus, total [as P]ANNL AVG report only all year
MW2Phosphorus, total [as P]ANNL AVG report only all year
MW2Chloride [as Cl]ANNL MAX <= 250 mg/L all year
MW2Chloride [as Cl]ANNL MAX <= 250 mg/L all year
MW2Solids, total dissolvedANNL MAX <= 500 mg/L all year
MW2Solids, total dissolvedANNL MAX <= 500 mg/L all year
MW2Nitrogen, nitrate total [as NO3]ANNL MAX <= 10 mg/L all year
MW2Nitrogen, nitrate total [as NO3]ANNL MAX <= 10 mg/L all year
MW2Nitrogen, nitrite total [as NO2]ANNL MAX <= 1 mg/L all year
MW2Nitrogen, nitrite total [as NO2]ANNL MAX <= 1 mg/L all year
MW2Coliform, fecal generalANNL MAX <= 2.2 MPN/100mL all year
MW2Coliform, fecal generalANNL MAX <= 2.2 MPN/100mL all year
MW3pHANNL AVG report only all year
MW3pHANNL AVG report only all year
MW3Nitrogen, total [as N]M0 <= 10 mg/L all year
MW3Nitrogen, total [as N]M0 <= 10 mg/L all year
MW3Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW3Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW3Phosphorus, total [as P]ANNL AVG report only all year
MW3Phosphorus, total [as P]ANNL AVG report only all year
MW3Chloride [as Cl]M0 <= 250 mg/L all year
MW3Chloride [as Cl]M0 <= 250 mg/L all year
MW3Solids, total dissolvedM0 <= 500 mg/L all year
MW3Solids, total dissolvedM0 <= 500 mg/L all year
MW3Nitrogen, nitrate total [as NO3]M0 <= 10 mg/L all year
MW3Nitrogen, nitrate total [as NO3]M0 <= 10 mg/L all year
MW3Nitrogen, nitrite total [as NO2]ANNL MAX <= 1 mg/L all year
MW3Nitrogen, nitrite total [as NO2]ANNL MAX <= 1 mg/L all year
MW3Coliform, fecal generalM0 <= 0 MPN/100mL all year
MW3Coliform, fecal generalM0 <= 0 MPN/100mL all year
MW4pHVALUE report only all year
MW4pHVALUE report only all year
MW4Nitrogen, total [as N]M0 <= 10 mg/L all year
MW4Nitrogen, total [as N]M0 <= 10 mg/L all year
MW4Nitrogen, Kjeldahl, total [as N]VALUE report only all year
MW4Nitrogen, Kjeldahl, total [as N]VALUE report only all year
MW4Phosphorus, total [as P]VALUE report only all year
MW4Phosphorus, total [as P]VALUE report only all year
MW4Chloride [as Cl]M0 <= 250 mg/L all year
MW4Chloride [as Cl]M0 <= 250 mg/L all year
MW4Solids, total dissolvedM0 <= 500 mg/L all year
MW4Solids, total dissolvedM0 <= 500 mg/L all year
MW4Nitrogen, nitrate total [as NO3]M0 <= 10 mg/L all year
MW4Nitrogen, nitrate total [as NO3]M0 <= 10 mg/L all year
MW4Nitrogen, nitrite total [as NO2]ANNL MAX <= 10 mg/L all year
MW4Nitrogen, nitrite total [as NO2]ANNL MAX <= 10 mg/L all year
MW4Coliform, fecal generalM0 <= 0 MPN/100mL all year
MW4Coliform, fecal generalM0 <= 0 MPN/100mL 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