BOARD OF EDUCATION OF CHARLES COUNTY

NPDES permit MD0023175 · Minor NON-POTW · effective, expires 2030-12-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 15 forms filed late

Last period with anything received: 2026-08-31.

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 (35)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMX MO AV <= 30 mg/L (alert) all year
001Solids, total suspendedMX MO AV <= 30 mg/L (alert) all year
001Nitrogen, total [as N]MX MO AV <= 10 mg/L (alert) all year
001Nitrogen, total [as N]CUM TOTL <= 213 lb/yr all year
001Nitrogen, nitrite total [as N]MO AVG report only all year
001Nitrogen, nitrate total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only (alert) all year
001Flow, in conduit or thru treatment plantMX MO AV <= 3500 gal/d all year
MW01pHANNL AVG report only all year
MW01Nitrogen, total [as N]ANNL AVG report only all year
MW01Nitrogen, nitrite total [as N]ANNL AVG report only all year
MW01Nitrogen, nitrate total [as N]ANNL AVG report only all year
MW01Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW01Phosphate, total [as PO4]ANNL AVG report only all year
MW01Chloride [as Cl]ANNL AVG report only all year
MW01Solids, total dissolvedANNL AVG report only all year
MW01Coliform, fecal generalMAXIMUM <= 2.2 MPN/100mL all year
MW02pHANNL AVG report only all year
MW02Nitrogen, total [as N]AX <= 10 mg/L all year
MW02Nitrogen, nitrite total [as N]AX <= 1 mg/L all year
MW02Nitrogen, nitrate total [as N]AX <= 10 mg/L all year
MW02Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW02Phosphate, total [as PO4]ANNL AVG report only all year
MW02Chloride [as Cl]AX <= 250 mg/L all year
MW02Solids, total dissolvedAX <= 500 mg/L all year
MW02Coliform, fecal generalMAXIMUM <= 2.2 MPN/100mL all year
MW03pHANNL AVG report only all year
MW03Nitrogen, total [as N]AX <= 10 mg/L all year
MW03Nitrogen, nitrite total [as N]AX <= 1 mg/L all year
MW03Nitrogen, nitrate total [as N]AX <= 10 mg/L all year
MW03Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
MW03Phosphate, total [as PO4]ANNL AVG report only all year
MW03Chloride [as Cl]AX <= 250 mg/L all year
MW03Solids, total dissolvedAX <= 500 mg/L all year
MW03Coliform, fecal generalMAXIMUM <= 2.2 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