Owasso PWA

NPDES permit OK0020303 · Major POTW · effective, expires 2028-07-31 · 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.

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

1values over a limit
0required values missing, on 0 form(s)
1of 18 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, carbonaceous [5 day, 20 C] (1).

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 (99)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 23.6 mg/L all year
001Solids, total suspendedWKLY AVG <= 35.4 mg/L all year
001Solids, total suspendedMO AVG <= 826.7 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 3.14 mg/L Apr, May
001Nitrogen, ammonia total [as N]MO AVG <= 2.36 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 4.14 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.71 mg/L Apr, May
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.54 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 9.86 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 110 lb/d Apr, May
001Nitrogen, ammonia total [as N]MO AVG <= 82.7 lb/d Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 145 lb/d Jan, Feb, Mar, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
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
001Solids, total dissolved- 180 deg. CMO AVG <= 1031 mg/L all year
001Solids, total dissolved- 180 deg. CDAILY MX <= 1179 mg/L all year
001Solids, total dissolved- 180 deg. CMO AVG <= 36120 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 11.8 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 17.7 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 413.3 lb/d all year
SLDToxicity characteristic leaching procedureMO AV MN report only all year
SLDAnn. amt sludge disposed by other methodANNL TOT report only all year
SLDAnnual amt of sludge incineratedANNL TOT report only all year
SLDAnnual sludge production, totalANNL TOT report only all year
SLDAnnual amount of sludge land appliedANNL TOT report only all year
SLDAnnual amt. sludge disposed surface unitANNL TOT report only all year
SLDAnnual amt sludge disposed in landfillANNL TOT report only all year
SLDAnnual amt sludge transported interstateANNL TOT report only all year
SLDCompliance w/part 258 sludge requirementVALUE report only all year
SLLArsenic, dry weightSINGSAMP report only all year
SLLArsenic, dry weightMAXIMUM <= 75 mg/kg all year
SLLArsenic, dry weightM0 <= 41 kg/ha all year
SLLSelenium, dry weightSINGSAMP report only all year
SLLSelenium, dry weightMAXIMUM <= 100 mg/kg all year
SLLSelenium, dry weightM0 <= 100 kg/ha all year
SLLPolychlorinated biphenyls [PCBs]ANNL MAX <= 49.99 mg/kg all year
SLLCopper, dry weightSINGSAMP report only all year
SLLCopper, dry weightMAXIMUM <= 4300 mg/kg all year
SLLCopper, dry weightM0 <= 1500 kg/ha all year
SLLCadmium, dry weightSINGSAMP report only all year
SLLCadmium, dry weightMAXIMUM <= 85 mg/kg all year
SLLCadmium, dry weightM0 <= 39 kg/ha all year
SLLAnnual whole sludge application rateM0 report only all year
SLLMolybdenum, sludge, total, dry weight [as Mo]SINGSAMP report only all year
SLLMolybdenum, sludge, total, dry weight [as Mo]MAXIMUM <= 75 mg/kg all year
SLLMolybdenum, sludge, total, dry weight [as Mo]M0 report only all year
SLLZinc, sludge, total, dry weight [as Zn]SINGSAMP report only all year
SLLZinc, sludge, total, dry weight [as Zn]MAXIMUM <= 7500 mg/kg all year
SLLZinc, sludge, total, dry weight [as Zn]M0 <= 2800 kg/ha all year
SLLLead, sludge, total, dry weight [as Pb]SINGSAMP report only all year
SLLLead, sludge, total, dry weight [as Pb]MAXIMUM <= 840 mg/kg all year
SLLLead, sludge, total, dry weight [as Pb]M0 <= 300 kg/ha all year
SLLNickel, sludge, total, dry weight [as Ni]SINGSAMP report only all year
SLLNickel, sludge, total, dry weight [as Ni]MAXIMUM <= 420 mg/kg all year
SLLNickel, sludge, total, dry weight [as Ni]M0 <= 420 kg/ha all year
SLLMercury, sludge, total, dry weight [as Hg]SINGSAMP report only all year
SLLMercury, sludge, total, dry weight [as Hg]MAXIMUM <= 57 mg/kg all year
SLLMercury, sludge, total, dry weight [as Hg]M0 <= 17 kg/ha all year
SLLPollutant table from 503.13VALUE report only all year
SLLLevel of pathogen requirements achievedM0 report only all year
SLLDescription of pathogen option usedVALUE report only all year
SLLVector attraction reduction alternative usedVALUE report only all year
SLSArsenic, dry weightCA report only all year
SLSArsenic, dry weightSINGSAMP report only all year
SLSUnit w/liner/leachate collection systemVALUE report only all year
SLSUnit boundary to property line distanceVALUE report only all year
SLSNickel, sludge, total, dry weight [as Ni]CA report only all year
SLSNickel, sludge, total, dry weight [as Ni]SINGSAMP report only all year
SLSChromium, sludge, total, dry weight [as Cr]CA report only all year
SLSChromium, sludge, total, dry weight [as Cr]SINGSAMP report only all year
SLSLevel of pathogen requirements achievedSINGSAMP report only all year
SLSDescription of pathogen option usedVALUE report only all year
SLSVector attraction reduction alternative usedVALUE report only all year
TX1pHDAILY MN report only all year
TX1pHDAILY MX report only all year
TX1Nitrogen, ammonia total [as N]DAILY MN report only all year
TX1Nitrogen, ammonia total [as N]MO AVG report only all year
TX1Nitrogen, ammonia total [as N]DAILY MX report only all year
TX1Whole effluent toxicity - retest #17 DA MIN report only all year
TX1Whole effluent toxicity - retest #27 DA MIN report only all year
TX1Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1%Mortality 7Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1%Mortality Static Renewal 7Day Chronic Pimephales Promelas7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN 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 Ceriodaphnia dubia7 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 Ceriodaphnia dubia7 DA MIN report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN 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