Choctaw Co. RW & SD #1-Grant

NPDES permit OK0037826 · Minor POTW · effective, expires 2028-07-31 · EPA's file as of 2026-09-19

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EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

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

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 (18)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 4 mg/L Mar, Apr, May
001Oxygen, dissolved [DO]MO MIN >= 3 mg/L Jan, Feb, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 12.51 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 90 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspendedWKLY AVG <= 135 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspendedMO AVG <= 37.53 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG <= 0 MGD Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Flow, in conduit or thru treatment plantDAILY MX <= 0 MGD Jun, Jul, Aug, Sep, Oct
001E. coliGEO MEAN <= 126 CFU/100mL May, Jun, Jul, Aug, Sep
001E. coliGEO MEAN <= 630 CFU/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001E. coliDAILY MX <= 406 CFU/100mL May, Jun, Jul, Aug, Sep
001E. coliDAILY MX <= 2030 CFU/100mL Jan, Feb, Mar, Apr, Oct, Nov, 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