Jocko River Trout Hatchery

NPDES permit MT0030546 · Minor NON-POTW · effective, expires 2028-06-30 · 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
0required values missing, on 0 form(s)
0of 20 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MT permits in EPA's filings — check your permit).

Limits in force (46)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN report only all year
001Oxygen, dissolved [DO]30DA AVG report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Nitrogen, total [as N]30DA AVG report only Jul, Aug, Sep
001Nitrogen, total [as N]DAILY MX report only Jul, Aug, Sep
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]30DA AVG report only Jul, Aug, Sep
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only Jul, Aug, Sep
001Nitrite + Nitrate total [as N]30DA AVG report only Jul, Aug, Sep
001Nitrite + Nitrate total [as N]DAILY MX report only Jul, Aug, Sep
001Phosphorus, total [as P]30DA AVG report only Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jul, Aug, Sep
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Oil and grease visualINST MAX report only all year
001UTemperature, water deg. centigrade30DA AVG report only all year
001UTemperature, water deg. centigradeDAILY MX report only all year
001UpHMINIMUM report only all year
001UpHMAXIMUM report only all year
001UNitrogen, total [as N]30DA AVG report only Jul, Aug, Sep
001UNitrogen, total [as N]DAILY MX report only Jul, Aug, Sep
001UNitrogen, Kjeldahl, total [as N]30DA AVG report only Jul, Aug, Sep
001UNitrogen, Kjeldahl, total [as N]DAILY MX report only Jul, Aug, Sep
001UNitrite + Nitrate total [as N]30DA AVG report only Jul, Aug, Sep
001UNitrite + Nitrate total [as N]DAILY MX report only Jul, Aug, Sep
001UPhosphorus, total [as P]30DA AVG report only Jul, Aug, Sep
001UPhosphorus, total [as P]DAILY MX report only Jul, Aug, Sep
IM01Nitrogen, total [as N]30DA AVG report only Aug
IM01Nitrogen, total [as N]DAILY MX report only Aug
IM01Nitrogen, Kjeldahl, total [as N]30DA AVG report only Aug
IM01Nitrogen, Kjeldahl, total [as N]DAILY MX report only Aug
IM01Nitrite + Nitrate total [as N]30DA AVG report only Aug
IM01Nitrite + Nitrate total [as N]DAILY MX report only Aug
IM02Nitrogen, total [as N]30DA AVG report only Aug
IM02Nitrogen, total [as N]DAILY MX report only Aug
IM02Nitrogen, Kjeldahl, total [as N]30DA AVG report only Aug
IM02Nitrogen, Kjeldahl, total [as N]DAILY MX report only Aug
IM02Nitrite + Nitrate total [as N]30DA AVG report only Aug
IM02Nitrite + Nitrate total [as N]DAILY MX report only Aug

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