MARTINSVILLE WWTP

NPDES permit IN0020303 · Major POTW · effective, expires 2029-06-30 · 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
9required values missing, on 4 form(s)
5of 14 forms filed late

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

Reporting

Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (35)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 551 lb/d all year
001Solids, total suspendedMX WK AV <= 826 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 9.5 mg/L all year
001Nitrogen, ammonia total [as N]MX WK AV <= 14.3 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 174 lb/d all year
001Nitrogen, ammonia total [as N]MX WK AV <= 263 lb/d all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Dec
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jan
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 16.6 tox chronic Dec
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 16.6 tox chronic Jan
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute Dec
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute Jan
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 16.6 tox chronic Dec
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 16.6 tox chronic Jan
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 459 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 734 lb/d all year
001Flow, totalMO TOTAL report only all year
PRTCopper, dry weightVALUE report only Jun, Dec
PRTCadmium, dry weightVALUE report only Jun, Dec
PRTMolybdenum, sludge, total, dry weight [as Mo]VALUE report only Jun, Dec
PRTZinc, sludge, total, dry weight [as Zn]VALUE report only Jun, Dec
PRTLead, sludge, total, dry weight [as Pb]VALUE report only Jun, Dec
PRTNickel, sludge, total, dry weight [as Ni]VALUE report only Jun, Dec
PRTMercury, sludge, total, dry weight [as Hg]VALUE report only Jun, 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