Rockford city of

NPDES permit MN0024627 · Minor POTW · effective, expires 2030-11-30 · 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

2values over a limit
2required values missing, on 1 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (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 (46)

OutfallParameterStatisticLimitMonths
D027Oxygen, dissolved [DO]MO MIN report only all year
D027pHMO MIN >= 6 SU all year
D027pHMO MAX <= 9 SU all year
D027Solids, total suspendedMO AVG <= 30 mg/L all year
D027Solids, total suspendedMO MAX report only Jul
D027Solids, total suspendedMX WK AV <= 45 mg/L all year
D027Solids, total suspendedMO AVG <= 73.8 kg/d all year
D027Solids, total suspendedMX WK AV <= 110.7 kg/d all year
D027Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D027Nitrogen, ammonia total [as N]MO AVG <= 20 mg/L Jun, Jul, Aug, Sep
D027Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D027Nitrogen, ammonia total [as N]MO AVG <= 49.2 kg/d Jun, Jul, Aug, Sep
D027Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D027Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D027Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D027Phosphorus, total [as P]MO AVG report only all year
D027Phosphorus, total [as P]MO AVG report only all year
D027Phosphorus, total [as P]MO AVG report only all year
D027Phosphorus, total [as P]YA <= 899 kg/yr all year
D027Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D027Flow, in conduit or thru treatment plantMO AVG report only all year
D027Flow, in conduit or thru treatment plantMO MAX report only all year
D027Flow, in conduit or thru treatment plantMO TOTAL report only all year
D027Solids, total dissolvedMO AVG report only Mar, Sep
D027Mercury, dissolved [as Hg]MO MAX report only Jul
D027Mercury, total [as Hg]MO MAX report only Jul
D027BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D027BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D027BOD, carbonaceous [5 day, 20 C]MO AVG <= 61.5 kg/d all year
D027BOD, carbonaceous [5 day, 20 C]MX WK AV <= 98.4 kg/d all year
D027BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D027Solids, suspended percent removalMO AV MN >= 85 % all year
S028Precipitation, total defined period/inMO TOTAL report only all year
S028pHMO MIN report only all year
S028pHMO MAX report only all year
S028Solids, total suspendedMO AVG report only all year
S028Solids, total suspendedMO MAX report only all year
S028Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S028Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S028Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S028Phosphorus, total [as P]MO AVG report only all year
S028Flow, in conduit or thru treatment plantMO AVG report only all year
S028Flow, in conduit or thru treatment plantMO MAX report only all year
S028Flow, in conduit or thru treatment plantMO TOTAL report only all year
S028BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S028BOD, carbonaceous [5 day, 20 C]MO MAX 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