Clara City city of

NPDES permit MN0023035 · Minor POTW · effective, expires 2027-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

2values 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: Chlorine, total residual (1), pH (1).

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 (58)

OutfallParameterStatisticLimitMonths
D009Specific conductanceMO MAX report only Mar, Sep
D009Oxygen, dissolved [DO]MO MIN >= 5 mg/L all year
D009pHMO MIN >= 6 SU all year
D009pHMO MAX <= 9 SU all year
D009Bicarbonate ion- [as HCO3]MO MAX report only Mar, Sep
D009Solids, total suspendedMO AVG <= 30 mg/L all year
D009Solids, total suspendedMO MAX report only Jul
D009Solids, total suspendedMX WK AV <= 45 mg/L all year
D009Solids, total suspendedMO AVG <= 52.2 kg/d all year
D009Solids, total suspendedMX WK AV <= 78.2 kg/d all year
D009Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D009Nitrogen, ammonia total [as N]MO AVG <= 3.3 mg/L Oct, Nov
D009Nitrogen, ammonia total [as N]MO AVG <= 10.8 mg/L Jan, Feb, Mar, Dec
D009Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L Jun, Jul, Aug, Sep
D009Nitrogen, ammonia total [as N]MO AVG <= 27 mg/L Apr, May
D009Nitrogen, ammonia total [as N]MO AVG <= 5.74 kg/d Oct, Nov
D009Nitrogen, ammonia total [as N]MO AVG <= 18.78 kg/d Jan, Feb, Mar, Dec
D009Nitrogen, ammonia total [as N]MO AVG <= 1.739 kg/d Jun, Jul, Aug, Sep
D009Nitrogen, ammonia total [as N]MO AVG <= 46.95 kg/d Apr, May
D009Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D009Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D009Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D009Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
D009Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
D009Phosphorus, total [as P]MO AVG <= 2.3 kg/d Jun, Jul, Aug, Sep
D009Phosphorus, total [as P]ANNL TOT <= 636 kg/yr all year
D009Calcium, total [as Ca]MO MAX report only Mar, Sep
D009Magnesium, total [as Mg]MO MAX report only Mar, Sep
D009Sodium, total [as Na]MO MAX report only Mar, Sep
D009Potassium, total [as K]MO MAX report only Mar, Sep
D009Chloride [as Cl]MO MAX report only Mar, Sep
D009Sulfate, total [as SO4]MO MAX report only Mar, Sep
D009Hardness, Ca Mg Calculated [mg/L as CaCO3]MO MAX report only Mar, Sep
D009Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
D009Flow, in conduit or thru treatment plantMO AVG report only all year
D009Flow, in conduit or thru treatment plantMO MAX report only all year
D009Flow, in conduit or thru treatment plantMO TOTAL report only all year
D009Chlorine, total residualDAILY MX <= .038 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
D009Solids, total dissolvedMO MAX report only Mar, Sep
D009Mercury, dissolved [as Hg]MO MAX report only Jul
D009Mercury, total [as Hg]MO MAX report only Jul
D009BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D009BOD, carbonaceous [5 day, 20 C]MX WK AV <= 25 mg/L all year
D009BOD, carbonaceous [5 day, 20 C]MO AVG <= 26.08 kg/d all year
D009BOD, carbonaceous [5 day, 20 C]MX WK AV <= 43.47 kg/d all year
D009BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D009Solids, suspended percent removalMO AV MN >= 85 % all year
S008Precipitation, total defined period/inMO TOTAL report only all year
S008pHMO MIN report only all year
S008pHMO MAX report only all year
S008Solids, total suspendedMO AVG report only all year
S008Solids, total suspendedMO MAX report only all year
S008Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S008Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S008Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S008Phosphorus, total [as P]MO AVG report only all year
S008BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S008BOD, 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