Green Forest, City of - Green Forest WWTP

NPDES permit AR0021741 · Major POTW · effective, expires 2027-03-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 15 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among AR permits in EPA's filings — check your permit).

Limits in force (48)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspended7 DA AVG <= 23 mg/L all year
001Solids, total suspendedMO AVG <= 500.4 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.6 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]7 DA AVG <= 3.9 mg/L Apr
001Nitrogen, ammonia total [as N]7 DA AVG <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]7 DA AVG <= 6 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 53.4 lb/d Apr
001Nitrogen, ammonia total [as N]MO AVG <= 33.4 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 133.4 lb/d Jan, Feb, Mar, Nov, Dec
001Nitrite + Nitrate total [as N]MO AVG <= 10 mg/L all year
001Nitrite + Nitrate total [as N]7 DA AVG <= 10 mg/L all year
001Nitrite + Nitrate total [as N]MO AVG <= 333.6 lb/d all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]7 DA AVG <= 2 mg/L all year
001Phosphorus, total [as P]MO AVG <= 33.4 lb/d 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
001Coliform, fecal generalMO GEO <= 200 #/100mL all year
001Coliform, fecal general7 DA GEO <= 400 #/100mL all year
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 <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 333.6 lb/d all year
TX1Whole Effluent Toxicity [WET] - C. dubiaMO AV MN >= 100 % all year
TX1Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 100 % all year
TX1Whole Effluent Toxicity [WET] - C. dubiaMO AV MN >= 80 % all year
TX1Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 80 % all year
TX1Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 100 % all year
TX1Whole Effluent Toxicity [WET] - P. promelas7 DA MIN >= 100 % all year
TX1Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 80 % all year
TX1Whole Effluent Toxicity [WET] - P. promelas7 DA MIN >= 80 % 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
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