MARSHALL COUNTY SCHOOL DIST, H W BYERS SCHOOL

NPDES permit MS0034631 · Minor NON-POTW · effective, expires 2028-09-30 · 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
24required values missing, on 1 form(s)
0of 1 forms filed late

Last period with anything received: none.

Reporting

Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (24)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMX MO AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 5.25 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 7.88 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMX MO AV <= 60 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMX MO AV <= 10.5 lb/d all year
001Solids, total suspendedDAILY MX <= 10.5 lb/d all year
001Nitrogen, total [as N]MX MO AV report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MX MO AV report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMX MO AV <= .021 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMINIMUM >= .1 mg/L all year
001Chlorine, total residualMAXIMUM <= 1 mg/L all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/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