OPPD CASS COUNTY STATION 1&2

NPDES permit NE0133205 · Minor NON-POTW · effective, expires 2028-09-30 · 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 4 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among NE permits in EPA's filings — check your permit).

Limits in force (24)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Cadmium, dissolved [as Cd]MO AVG report only all year
001Cadmium, dissolved [as Cd]DAILY MX report only all year
001Chromium, dissolved [as Cr]MO AVG report only all year
001Chromium, dissolved [as Cr]DAILY MX report only all year
001Copper, dissolved [as Cu]MO AVG report only all year
001Copper, dissolved [as Cu]DAILY MX report only all year
001Lead, dissolved [as Pb]MO AVG report only all year
001Lead, dissolved [as Pb]DAILY MX report only all year
001Nickel, dissolved [as Ni]MO AVG report only all year
001Nickel, dissolved [as Ni]DAILY MX report only all year
001Zinc, dissolved [as Zn]MO AVG report only all year
001Zinc, dissolved [as Zn]DAILY MX report only all year
001Hydrocarbons, total gas chromatographMO AVG report only all year
001Hydrocarbons, total gas chromatographDAILY MX <= 10 mg/L 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
001Toxicity [acute], Ceriodaphnia dubiaMO AVG report only all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 6.1 tox acute all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MO AVG report only all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 6.1 tox acute 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