The Madeira School, Inc.

NPDES permit VA0024121 · Minor NON-POTW · effective, expires 2029-04-30 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oxygen, dissolved [DO] (1), pH (1).

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (17)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 23 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 2.2 kg/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 3.4 kg/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedWKLY AVG <= 23 mg/L all year
001Solids, total suspendedMO AVG <= 2.2 kg/d all year
001Solids, total suspendedWKLY AVG <= 3.4 kg/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 1.9 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG <= .0395 MGD (alert) all year
001Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
001E. coliGEO MEAN <= 126 #/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