MILLINGTON WWTP

NPDES permit MD0020435 · Minor POTW · effective, expires 2030-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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EPA's record, 2025-09-01 to 2026-08-31

2values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Enterococci (2).

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 (39)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Feb, Mar, Apr, May
001Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 26 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 39 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 <= 26 lb/d all year
001Solids, total suspendedMX WK AV <= 39 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]CUM TOTL <= 5744 lb/yr all year
001Nitrogen, total [as N]CUM TOTL report only all year
001Nitrogen, total [as N]TC <= 2896 lb/yr May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MX WK AV report only all year
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Nitrogen, Kjeldahl, total [as N]MX WK AV report only all year
001Nitrite + Nitrate 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 <= 957 lb/yr all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]TC <= 483 lb/yr May, Jun, Jul, Aug, Sep, Oct
001Phosphate, ortho [as P]MO AVG report only all year
001Phosphate, ortho [as P]MO AVG 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 residualDAILY MX < .1 mg/L all year
001EnterococciGX <= 57 MPN/100mL all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Flow, totalMO TOTAL report only all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101Solids, total suspendedMO AVG 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