Foss Reservoir M.C.D.

NPDES permit OK0041491 · Major POTW · administratively continued, expires 2012-05-31 · 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.

This permit expired on 2012-05-31 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)
3of 15 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (24)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU 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
001Chlorine, total residualINST MAX <= .099 mg/L all year
TX1Whole effluent toxicity - retest #17 DA MIN report only all year
TX1Whole effluent toxicity - retest #1M5 report only all year
TX1Whole effluent toxicity - retest #27 DA MIN report only all year
TX1Whole effluent toxicity - retest #2M5 report only all year
TX1Solids, total dissolved- 180 deg. CDAILY MN report only all year
TX1Solids, total dissolved- 180 deg. CMO AVG report only all year
TX1Solids, total dissolved- 180 deg. CDAILY MX report only all year
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1%Mortality Static Renewal 7Day Chronic Pimephales Promelas7 DA MIN report only all year
TX1% Mortality 21 Day Chronic Daphnia MagnaM5 report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Pass/Fail Survival 21 Day Chronic Daphnia MagnaM5 report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1% Coefficient Of Variation 21 Day Chronic Daphnia MagnaM5 report only all year
TX1LOEC Lethal Survival Static Renewal 21 Day Chronic Daphnia magnaM5 report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 21 Day Chronic Daphnia magnaM5 report only all year
TX1Pass/Fail Reproduction 21 Day Chronic Daphnia MagnaM5 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