Xcel Energy

NPDES permit MN0004006 · Major NON-POTW · effective, expires 2031-05-31 · 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

0values over a limit
18required values missing, on 6 form(s)
0of 66 forms filed late

Last period with anything received: 2026-07-31.

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 (25)

OutfallParameterStatisticLimitMonths
D006Temperature, water deg. fahrenheitMX DA AV report only all year
D006Plant capacity fact. percent of capacityMO AVG report only all year
D006pHMO MIN >= 6 SU all year
D006pHMO MAX <= 9 SU all year
D006Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D006Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D006Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
D006Sulfate, total [as SO4]QB report only Mar, Jun, Sep, Dec
D006Oxidants released, total residualINST MAX <= .05 mg/L all year
D006Flow, in conduit or thru treatment plantDAILY AV report only all year
D006Flow, in conduit or thru treatment plantMO TOTAL report only all year
D006ChlorinationDAILY MX <= 2 hr/d all year
D006Solids, total dissolvedQB report only Mar, Jun, Sep, Dec
D013Flow, in conduit or thru treatment plantMO AVG report only all year
D013Flow, in conduit or thru treatment plantMO TOTAL report only all year
W014Temperature, water deg. fahrenheitDAILY AV report only Jan, Feb, Mar, Nov, Dec
W014Temperature, water deg. fahrenheitDAILY AV <= 86 deg F all year
W014Temp. diff. between samp. & upstrm deg. FMX DA AV <= 5 deg F all year
W015Temperature, water deg. fahrenheitMX DA AV report only all year
W015Nitrogen, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
W015Nitrogen, Kjeldahl, total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
W015Nitrite + Nitrate total [as N]QRTR AVG report only Mar, Jun, Sep, Dec
W015Sulfate, total [as SO4]QB report only Mar, Jun, Sep, Dec
W016Temperature, water deg. fahrenheitMX DA AV report only all year
W017Temperature, water deg. fahrenheitMX DA AV 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