Gilbert city of

NPDES permit MN0020125 · Minor POTW · expired, expires 2025-10-31 · 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.

This permit expired on 2025-10-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 28 forms filed late

Last period with anything received: 2026-08-31.

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 (54)

OutfallParameterStatisticLimitMonths
D005Specific conductanceMO MAX report only Mar, Sep
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 report only May, Sep
D005Solids, total suspendedMO AVG <= 30 mg/L all year
D005Solids, total suspendedDAILY MX report only May, Sep
D005Solids, total suspendedMX WK AV <= 45 mg/L all year
D005Solids, total suspendedMO AVG <= 56.7 kg/d all year
D005Solids, total suspendedMX WK AV <= 85 kg/d all year
D005Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D005Nitrogen, ammonia total [as N]MO AVG report only Mar, Sep
D005Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D005Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D005Phosphorus, total [as P]MO AVG <= 1 mg/L all year
D005Phosphorus, total [as P]MO AVG report only all year
D005Calcium, total [as Ca]MO MAX report only Mar, Sep
D005Magnesium, total [as Mg]MO MAX report only Mar, Sep
D005Sodium, total [as Na]MO MAX report only Mar, Sep
D005Potassium, total [as K]MO MAX report only Mar, Sep
D005Chloride [as Cl]MO AVG report only Mar, Sep
D005Coliform, fecal MPN + membrane ftl 44.5 CMO GEOMN <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct
D005Flow, in conduit or thru treatment plantMO AVG report only all year
D005Flow, in conduit or thru treatment plantMO MAX report only all year
D005Flow, in conduit or thru treatment plantMO TOTAL report only all year
D005Chlorine, total residualDAILY MX <= .038 mg/L all year
D005Solids, total dissolvedMO MAX report only Mar, Sep
D005Mercury, dissolved [as Hg]MO AVG report only May, Sep
D005Mercury, dissolved [as Hg]DAILY MX report only May, Sep
D005Mercury, total [as Hg]MO AVG <= 1.8 ng/L May, Sep
D005Mercury, total [as Hg]DAILY MX <= 3.2 ng/L May, Sep
D005BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
D005BOD, carbonaceous [5 day, 20 C]MX WK AV <= 30 mg/L all year
D005BOD, carbonaceous [5 day, 20 C]MO AVG <= 39.2 kg/d all year
D005BOD, carbonaceous [5 day, 20 C]MX WK AV <= 78.4 kg/d all year
D005BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
D005Solids, suspended percent removalMO AV MN >= 85 % all year
S006Precipitation, total defined period/inMO TOTAL report only all year
S006pHMO MIN report only all year
S006pHMO MAX report only all year
S006Solids, total suspendedMO AVG report only May, Sep
S006Solids, total suspendedMO AVG report only all year
S006Solids, total suspendedMO MAX report only all year
S006Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S006Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S006Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
S006Phosphorus, total [as P]MO AVG report only all year
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
S006Mercury, dissolved [as Hg]MO AVG report only May, Sep
S006Mercury, total [as Hg]MO AVG report only May, Sep
S006BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
S006BOD, 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