CenterPoint Energy

NPDES permit MN0063967 · Minor NON-POTW · effective, expires 2031-04-30 · 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
0required values missing, on 0 form(s)
0of 3 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 (18)

OutfallParameterStatisticLimitMonths
D001pHINST MIN >= 6 SU Mar, Jun, Sep, Dec
D001pHINST MAX <= 9 SU Mar, Jun, Sep, Dec
D001Solids, total suspendedQRTR AVG report only Mar, Jun, Sep, Dec
D001Nitrogen, total [as N]ANNL AVG report only all year
D001Nitrogen, Kjeldahl, total [as N]ANNL AVG report only all year
D001Nitrite + Nitrate total [as N]ANNL AVG report only all year
D001Phosphorus, total [as P]QRTR AVG report only Mar, Jun, Sep, Dec
D001Sulfate, total [as SO4]QB report only Mar, Jun, Sep, Dec
D001Iron, total [as Fe]QB report only Mar, Jun, Sep, Dec
D001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX report only Mar, Jun, Sep, Dec
D001TolueneDAILY MX report only Mar, Jun, Sep, Dec
D001BenzeneDAILY MX report only Mar, Jun, Sep, Dec
D001EthylbenzeneDAILY MX report only Mar, Jun, Sep, Dec
D001Flow, in conduit or thru treatment plantQRTR AVG report only Mar, Jun, Sep, Dec
D001Flow, in conduit or thru treatment plantQB report only Mar, Jun, Sep, Dec
D001Flow, in conduit or thru treatment plantQT report only Mar, Jun, Sep, Dec
D001Xylenes [total], dry weightDAILY MX report only Mar, Jun, Sep, Dec
D001BOD, 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