Holtec Palisades LLC

NPDES permit MI0001457 · Major NON-POTW · effective, expires 2029-10-01 · 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
3required values missing, on 3 form(s)
3of 44 forms filed late

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

Reporting

Reports are due about 21 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (44)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Thermal DischargeDAILY MX <= 2100 MBTU/hr all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Oxidants, total residualINST MAX <= 50 ug/L all year
001Temperature, length of excursionDAILY MX report only all year
001DurationDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 38 ug/L all year
001Chlorine, total residualINST MAX = 300 ug/L all year
001Chlorine, total residualDAILY MX <= 200 ug/L all year
001Spectrus CT 1300DAILY MX < 25 ug/L all year
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Chlorination durationDAILY MX report only all year
001Chlorination durationDAILY MX = 120 min/d all year
001HydrazineMO AVG < 3 ug/L all year
001HydrazineDAILY MX report only all year
001HydrazineMO AVG report only all year
001HydrazineDAILY MX report only all year
001HydrazineDAILY MX = 32 ug/L all year
001HydrazineDAILY MX report only all year
001Outfall observation,visual, y/n responseVALUE report only all year
INTTemperature, water deg. fahrenheitDAILY MX report only all year
INTEquipment inspection - visualVALUE report only all year
INTFlow, in conduit or thru treatment plantMO AVG report only all year
INTFlow, in conduit or thru treatment plantDAILY MX 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