Hawley city of

NPDES permit MN0020338 · Minor 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

4values over a limit
0required values missing, on 0 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal MPN + membrane ftl 44.5 C (2), 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 (44)

OutfallParameterStatisticLimitMonths
D010Specific conductanceMO AVG report only all year
D010Oxygen, dissolved [DO]MO MIN report only all year
D010pHMO MIN >= 6 SU all year
D010pHMO MAX <= 9 SU all year
D010Solids, total suspendedMO AVG <= 45 mg/L all year
D010Solids, total suspendedDAILY MX report only all year
D010Solids, total suspendedMX WK AV <= 65 mg/L all year
D010Solids, total suspendedMO AVG <= 364.9 kg/d all year
D010Solids, total suspendedMX WK AV <= 527.1 kg/d all year
D010Nitrogen, total [as N]MO AVG report only all year
D010Nitrogen, ammonia total [as N]MO AVG report only all year
D010Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
D010Nitrite + Nitrate total [as N]MO AVG report only all year
D010Phosphorus, total [as P]MO AVG report only all year
D010Phosphorus, total [as P]MO AVG report only all year
D010Phosphorus, total [as P]YA <= 926 kg/yr all year
D010Chloride [as Cl]MO AVG report only all year
D010Sulfate, total [as SO4]MO AVG report only all year
D010Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D010Flow, in conduit or thru treatment plantMO AVG report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D010Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Jul, Aug
D010Flow, in conduit or thru treatment plantMO MAX report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D010Flow, in conduit or thru treatment plantMO MAX report only Jan, Feb, Jul, Aug
D010Flow, in conduit or thru treatment plantMO TOTAL report only Mar, Apr, May, Jun, Sep, Oct, Nov, Dec
D010Flow, in conduit or thru treatment plantMO TOTAL report only Jan, Feb, Jul, Aug
D010Solids, total dissolvedMO AVG report only all year
D010Mercury, dissolved [as Hg]DAILY MX report only all year
D010Mercury, total [as Hg]DAILY MX report only all year
D010BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
D010BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
D010BOD, carbonaceous [5 day, 20 C]MO AVG <= 202.7 kg/d all year
D010BOD, carbonaceous [5 day, 20 C]MX WK AV <= 324.4 kg/d all year
S011Precipitation, total defined period/inMO TOTAL report only all year
S011pHQB report only Mar, Jun, Sep, Dec
S011Solids, total suspendedQRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S011Phosphorus, total [as P]QRTR AVG report only Mar, Jun, Sep, Dec
S011Flow, in conduit or thru treatment plantMO AVG report only all year
S011Flow, in conduit or thru treatment plantMO MAX report only all year
S011Flow, in conduit or thru treatment plantMO TOTAL report only all year
S011Mercury, total [as Hg]DAILY MX report only all year
S011BOD, 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