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NPDES permit MD0024767 · Major POTW · effective, expires 2030-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

7values over a limit
0required values missing, on 0 form(s)
0of 44 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (5), BOD, 5-day, percent removal (1), Solids, suspended percent removal (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (77)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 23 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 85 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 130 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMX MO AV <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMX MO AV <= 170 lb/d all year
001Solids, total suspendedMX WK AV <= 255 lb/d all year
001Solids, total suspendedCUM TOTL <= 62129 lb/yr all year
001Solids, total suspendedMO TOTAL report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]CUM TOTL <= 8284 lb/yr all year
001Nitrogen, total [as N]MO TOTAL report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, total [as N]ANNL TOT report only Dec
001Nitrogen, total [as N]ANNL TOT report only all year
001Nitrogen, total [as N]MX MO AV <= 4 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, total [as N]CUM TOTL report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, total [as N]EX <= 690 lb/mo May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= .8 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX MO AV <= 2.1 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MX DA AV <= 4 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX DA AV <= 11.6 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MX MO AV <= 4.5 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX MO AV <= 12 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MX DA AV <= 23 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX DA AV <= 66 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]CUM TOTL <= 621 lb/yr all year
001Phosphorus, total [as P]ANNL TOT report only Dec
001Phosphorus, total [as P]MO TOTAL <= 52 lb/mo May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]ANNL TOT report only all year
001Phosphorus, total [as P]MX MO AV <= .3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]MO TOTAL report only Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, total [as P]TC report only May, Jun, Jul, Aug, Sep, Oct
0012,3,7,8-Tetrachlorodibenzo-p-dioxinMO AVG <= .0000016 ug/L all year
001Phosphate, ortho [as P]MO AVG report only all year
001Benzo[b]fluorantheneMO AVG <= .57 ug/L all year
001Benzo[k]fluorantheneMO AVG <= .57 ug/L all year
001Benzo[a]pyreneMO AVG <= .57 ug/L all year
001ChryseneMO AVG <= .57 ug/L all year
001Indeno[1,2,3-cd]pyreneMO AVG <= .57 ug/L all year
001Benzo[a]anthraceneMO AVG <= .57 ug/L all year
001Dibenz[a,h]anthraceneMO AVG <= .57 ug/L all year
001BenzidineMO AVG <= .34 ug/L all year
0014,4'-DDTMO AVG <= .0009 ug/L all year
001Chlordane [tech mix. and metabolites]MO AVG <= .0043 ug/L all year
001ToxapheneMO AVG <= .002 ug/L all year
001HeptachlorMO AVG <= .00018 ug/L all year
001Heptachlor epoxideMO AVG <= .0009 ug/L all year
001HexachlorobenzeneMO AVG <= .0092 ug/L 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 residualDAILY MX < .011 mg/L all year
001Coliform, fecal generalMO MED <= 14 MPN/100mL all year
001Polychlorinated biphenyls [PCB] pg/LQRTR AVG report only Mar, Jun, Sep, Dec
001Polychlorinated biphenyls [PCB] pg/LCUM TOTL report only Mar, Jun, Sep, Dec
001Polychlorinated biphenyls [PCB] pg/LQT report only Mar, Jun, Sep, Dec
001BOD, 5-day, percent removalMX MO AV <= 85 % all year
001Solids, suspended percent removalMX MO AV <= 85 % all year
001Flow, totalANNL TOT report only all year
001Flow, totalTOTAL report only all year
001Flow, totalANNL TOT report only all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101Solids, total suspendedMO AVG report only all year
TRADSolids, total suspendedMO TOTAL report only all year
TRADSolids, total suspendedMO TOTAL report only all year
TRADNitrogen, total [as N]MO TOTAL report only all year
TRADNitrogen, total [as N]MO TOTAL report only all year
TRADPhosphorus, total [as P]MO TOTAL report only all year
TRADPhosphorus, total [as P]MO TOTAL report only all year
TRADFlowYA report only 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