Town of Centreville

NPDES permit MD0020834 · Minor POTW · effective, expires 2026-11-30 · EPA's file as of 2026-09-19

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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 11 forms filed late

Last period with anything received: 2026-07-31.

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 (36)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 28 mg/L Jan, Feb, Mar, Dec
001BOD, 5-day, 20 deg. CMO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CMX WK AV <= 42 mg/L Jan, Feb, Mar, Dec
001BOD, 5-day, 20 deg. CWKLY AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CMX MO AV <= 130 lb/d Jan, Feb, Mar, Dec
001BOD, 5-day, 20 deg. CMO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CMX WK AV <= 190 lb/d Jan, Feb, Mar, Dec
001BOD, 5-day, 20 deg. CWKLY AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMX MO AV <= 28 mg/L Jan, Feb, Mar, Dec
001Solids, total suspendedMO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 42 mg/L Jan, Feb, Mar, Dec
001Solids, total suspendedWKLY AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX MO AV <= 130 lb/d Jan, Feb, Mar, Dec
001Solids, total suspendedMO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 190 lb/d Jan, Feb, Mar, Dec
001Solids, total suspendedWKLY AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, total [as N]MX MO AV <= 5.5 mg/L Jan, Feb, Mar, Dec
001Nitrogen, total [as N]MO TOTAL <= 750 lb/mo Jan, Feb, Mar, Dec
001Nitrogen, total [as N]CUM TOTL <= 3004 lb/yr Jan, Feb, Mar, Dec
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MX MO AV <= 1 mg/L Jan, Feb, Mar, Dec
001Phosphorus, total [as P]CUM TOTL <= 457 lb/yr Jan, Feb, Mar, Dec
001Phosphorus, total [as P]MO TOTAL <= 140 lb/mo Jan, Feb, Mar, Dec
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 residualMAXIMUM <= .1 mg/L all year
001E. coliGX <= 116 MPN/100mL all year
001Phosphorous, in total orthophosphateMO AVG report only all year
001BOD, 5-day, percent removalMINIMUM report only Jan, Feb, Mar, Dec
001Solids, suspended percent removalMINIMUM report only all year
001Flow, totalTOTAL 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