Xcel Energy - Allen S King Generating Plant

NPDES permit MN0000825 · Major NON-POTW · administratively continued, expires 2010-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2010-01-31 and is administratively continued: 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 40 forms filed late

Last period with anything received: 2026-06-30.

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
010Temperature, water deg. fahrenheitMO AVG report only all year
010Temperature, water deg. fahrenheitDAILY MX <= 86 deg F all year
010Temperature, water deg. fahrenheitSINGSAMP report only all year
010Plant capacity fact. percent of capacityMO AVG report only all year
010Flow, in conduit or thru treatment plantMO TOTAL report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Chlorine, total residualINST MAX <= .2 mg/L all year
010ChlorinationCUM TOTL <= 2 hr/d all year
012pHMO MIN >= 6 SU all year
012pHMO MAX <= 9 SU all year
012Solids, total suspendedMO AVG <= 30 mg/L all year
012Solids, total suspendedDAILY MX <= 100 mg/L all year
012Solids, total suspendedMO AVG <= 295 kg/d all year
012Solids, total suspendedDAILY MX <= 984 kg/d all year
012Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
012Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
012Oil and grease, hexane extr methodMO AVG <= 147 kg/d all year
012Oil and grease, hexane extr methodDAILY MX <= 196 kg/d all year
012Flow, in conduit or thru treatment plantMO TOTAL report only all year
012Flow, in conduit or thru treatment plantMO AVG report only all year
012Mercury, total [as Hg]DAILY MX report only Mar, Jun, Sep, Dec
013Flow, in conduit or thru treatment plantMO TOTAL report only all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantMO TOTAL report only all year
014Flow, in conduit or thru treatment plantMO AVG 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