SHERIDAN, CITY OF

NPDES permit AR0034347 · Minor POTW · administratively continued, expires 2025-02-28 · 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 2025-02-28 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

3values over a limit
0required values missing, on 0 form(s)
9of 29 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oxygen, dissolved [DO] (1), pH (1), Nitrogen, ammonia total [as N] (1).

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (113)

OutfallParameterStatisticLimitMonths
001StreamflowMINIMUM >= 6.5 MGD Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
001StreamflowMINIMUM >= 3.2 MGD Jan, Feb
001Stream flow, instantaneousMO AVG report only all year
001Stream flow, instantaneousDAILY MX report only all year
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L Jan, Feb
001Oxygen, dissolved [DO]INST MIN >= 6 mg/L Mar, Apr, Nov, Dec
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 10 SU all year
001Solids, total suspendedMO AVG <= 90 mg/L all year
001Solids, total suspended7 DA AVG <= 135 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 12 mg/L Jan, Feb
001Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]7 DA AVG <= 18 mg/L Jan, Feb
001Nitrogen, ammonia total [as N]7 DA AVG <= 15 mg/L Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]7 DA AVG <= 6 mg/L May, Jun, Jul, Aug, Sep, Oct
001Discharge flow as % of stream flowMAXIMUM <= 20 % Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
001Discharge flow as % of stream flowMAXIMUM <= 30 % Jan, Feb
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Coliform, fecal general30DA GEO <= 200 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal general30DA GEO <= 1000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001Coliform, fecal general7 DA GEO <= 400 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal general7 DA GEO <= 2000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
001OverflowsMO TOTAL report only all year
001Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
002StreamflowMINIMUM >= 9 MGD Mar, Apr, May
002StreamflowMINIMUM >= 4.5 MGD Jan, Feb, Jun, Jul, Aug, Sep, Oct, Nov, Dec
002StreamflowMO AVG report only all year
002StreamflowDAILY MX report only all year
002Oxygen, dissolved [DO]INST MIN >= 4 mg/L Jan, Feb
002Oxygen, dissolved [DO]INST MIN >= 3 mg/L Mar, Apr, May, Oct, Nov, Dec
002Oxygen, dissolved [DO]INST MIN >= 2 mg/L Jun, Jul, Aug, Sep
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 10 SU all year
002Solids, total suspendedMO AVG <= 90 mg/L all year
002Solids, total suspended7 DA AVG <= 135 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 12 mg/L Jan, Feb
002Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L Mar, Apr, May, Oct, Nov, Dec
002Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jun, Jul, Aug, Sep
002Nitrogen, ammonia total [as N]7 DA AVG <= 18 mg/L Jan, Feb
002Nitrogen, ammonia total [as N]7 DA AVG <= 15 mg/L Mar, Apr, May, Oct, Nov, Dec
002Nitrogen, ammonia total [as N]7 DA AVG <= 6 mg/L Jun, Jul, Aug, Sep
002Discharge flow as % of stream flowMAXIMUM <= 10 % Mar, Apr, May
002Discharge flow as % of stream flowMAXIMUM <= 20 % Jan, Feb, Jun, Jul, Aug, Sep, Oct, Nov, Dec
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Coliform, fecal general30DA GEO <= 200 #/100mL May, Jun, Jul, Aug, Sep
002Coliform, fecal general30DA GEO <= 1000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
002Coliform, fecal general7 DA GEO <= 400 #/100mL May, Jun, Jul, Aug, Sep
002Coliform, fecal general7 DA GEO <= 2000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
002OverflowsMO TOTAL report only all year
002Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
002BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
TX1Whole effluent toxicity - retest #17 DA MIN report only Jan, Feb
TX1Whole effluent toxicity - retest #17 DA MIN report only Mar, Apr, May, Jun
TX1Whole effluent toxicity - retest #17 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Whole effluent toxicity - retest #27 DA MIN report only Jan, Feb
TX1Whole effluent toxicity - retest #27 DA MIN report only Mar, Apr, May, Jun
TX1Whole effluent toxicity - retest #27 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1WET, sublethal retest #17 DA MIN report only Jan, Feb
TX1WET, sublethal retest #17 DA MIN report only Mar, Apr, May, Jun
TX1WET, sublethal retest #17 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1WET, sublethal retest #27 DA MIN report only Jan, Feb
TX1WET, sublethal retest #27 DA MIN report only Mar, Apr, May, Jun
TX1WET, sublethal retest #27 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Whole Effluent Toxicity - Retest #37 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Whole Effluent Toxicity, Sub-Lethal Retest #37 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Mar, Apr, May, Jun
TX1Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only Jan, Feb
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only Mar, Apr, May, Jun
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Mar, Apr, May, Jun
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Jan, Feb
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Mar, Apr, May, Jun
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Mar, Apr, May, Jun
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Jan, Feb
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Mar, Apr, May, Jun
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Mar, Apr, May, Jun
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Jan, Feb
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Mar, Apr, May, Jun
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia7 DA MIN report only Mar, Apr, May, Jun
TX1Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only Jan, Feb
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only Mar, Apr, May, Jun
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only Jul, Aug, Sep, Oct, Nov, Dec
TX2Whole effluent toxicity - retest #17 DA MIN report only all year
TX2Whole effluent toxicity - retest #27 DA MIN report only all year
TX2WET, sublethal retest #17 DA MIN report only all year
TX2WET, sublethal retest #27 DA MIN report only all year
TX2Whole Effluent Toxicity - Retest #37 DA MIN report only all year
TX2Whole Effluent Toxicity, Sub-Lethal Retest #37 DA MIN report only all year
TX2Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Coef 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