Bob Tyler Fish Hatchery

NPDES permit MS0058891 · Minor NON-POTW · effective, expires 2029-12-31 · 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 16 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 MS permits in EPA's filings — check your permit).

Limits in force (31)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 25 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 38 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Nitrogen, total [as N]QRTR AVG report only all year
001Nitrogen, total [as N]QB report only all year
001Nitrogen, total [as N]QRTR AVG report only all year
001Nitrogen, total [as N]QB report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.37 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 2.06 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 3.92 lb/mo all year
001Nitrogen, ammonia total [as N]DAILY MX <= 5.9 lb/mo all year
001Nitrogen, Kjeldahl, total [as N]QRTR AVG report only all year
001Nitrogen, Kjeldahl, total [as N]QB report only all year
001Nitrogen, Kjeldahl, total [as N]QRTR AVG report only all year
001Nitrogen, Kjeldahl, total [as N]QB report only all year
001Nitrite + Nitrate total [as N]QRTR AVG report only all year
001Nitrite + Nitrate total [as N]QB report only all year
001Nitrite + Nitrate total [as N]QRTR AVG report only all year
001Nitrite + Nitrate total [as N]QB report only all year
001Phosphorus, total [as P]QRTR AVG report only all year
001Phosphorus, total [as P]QB report only all year
001Phosphorus, total [as P]QRTR AVG report only all year
001Phosphorus, total [as P]QB 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

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