MNDOT Central Office

NPDES permit MN0049514 · Minor POTW · effective, expires 2029-03-31 · 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

2values over a limit
1required values missing, on 1 form(s)
0of 36 forms filed late

Last period with anything received: 2026-08-31. Most often over: Phosphorus, total [as P] (2).

Reporting

Reports are due about 21 days after each monitoring period ends (the most common figure among MN permits in EPA's filings — check your permit).

Limits in force (35)

OutfallParameterStatisticLimitMonths
D005Oxygen, dissolved [DO]MO MIN report only all year
D005pHMO MIN >= 6 SU all year
D005pHMO MAX <= 9 SU all year
D005Solids, total suspendedMO AVG <= 45 mg/L all year
D005Solids, total suspendedMX WK AV <= 65 mg/L all year
D005Solids, total suspendedMO AVG <= 15.5 kg/d all year
D005Solids, total suspendedMX WK AV <= 22.4 kg/d all year
D005Nitrogen, total [as N]MO AVG report only all year
D005Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D005Nitrite + Nitrate total [as N]MO AVG report only all year
D005Phosphorus, total [as P]MO AVG <= 1 mg/L all year
D005Phosphorus, total [as P]MO AVG report only all year
D005Phosphorus, total [as P]YA <= 33 kg/yr all year
D005Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D005Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Jul, Aug
D005Flow, in conduit or thru treatment plantMO AVG report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D005Flow, in conduit or thru treatment plantMO MAX report only Jan, Feb, Jul, Aug
D005Flow, in conduit or thru treatment plantMO MAX report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D005Flow, in conduit or thru treatment plantMO TOTAL report only Jan, Feb, Jul, Aug
D005Flow, in conduit or thru treatment plantMO TOTAL report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D005BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D005BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D005BOD, carbonaceous [5 day, 20 C]MO AVG <= 8.6 kg/d all year
D005BOD, carbonaceous [5 day, 20 C]MX WK AV <= 13.8 kg/d all year
S006Precipitation, total defined period/inMO TOTAL report only all year
S006pHQB report only Mar, Jun, Sep, Dec
S006Solids, total suspendedQRTR AVG report only Mar, Jun, Sep, Dec
S006Nitrogen, total [as N]MO AVG report only Mar, Sep
S006Nitrogen, Kjeldahl, total [as N]MO AVG report only Mar, Sep
S006Nitrite + Nitrate total [as N]MO AVG report only Mar, Sep
S006Phosphorus, total [as P]QRTR AVG report only Mar, Jun, Sep, Dec
S006Flow, in conduit or thru treatment plantMO AVG report only all year
S006Flow, in conduit or thru treatment plantMO MAX report only all year
S006Flow, in conduit or thru treatment plantMO TOTAL report only all year
S006BOD, carbonaceous [5 day, 20 C]QRTR AVG report only Mar, Jun, Sep, Dec

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