WELLSVILLE CITY CORPORATION

NPDES permit UT0020371 · Minor POTW · effective, expires 2030-05-31 · 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
23required values missing, on 2 form(s)
5of 27 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, percent removal (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (68)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX MO AV report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 25 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 35 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMX MO AV <= 25 mg/L all year
001Solids, total suspendedMX WK AV <= 35 mg/L all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedMX WK AV report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= 35.8 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]MX MO AV <= 24 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]MX MO AV <= 11.4 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MX MO AV <= 12.9 mg/L Oct, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 36.1 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 29.6 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 13.7 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 16.2 mg/L Oct, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]ANNL MAX <= 953 lb/yr all year
001Phosphorus, total [as P]MX MO AV report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Phosphorus, total [as P] [per season]EX <= 159 lb/season Jun, Jul, Aug, Sep
001Phosphorus, total [as P] [per season]EX <= 794 lb/season Feb, Mar, Apr, May, Oct, Nov, Dec
001Flow, in conduit or thru treatment plantMX MO AV <= .68 MGD all year
001Flow, in conduit or thru treatment plantMX MO AV report only all year
001Flow, in conduit or thru treatment plantDI report only all year
001Phosphorus, orthoMX MO AV report only all year
001E. coli30DA GEO <= 126 #/100mL all year
001E. coli7 DA GEO <= 157 #/100mL all year
001Solids, total dissolvedMX MO AV report only all year
001Nitrogen, nitrate total [as NO3]MX MO AV report only all year
001Nitrogen, nitrite total [as NO2]MX MO AV report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001BOD, 5-day, percent removalMO MIN >= 85 % all year
001Solids, suspended percent removalMO MIN >= 85 % all year
001RFlow rateDAILY MX report only all year
001RBOD, 5-day, 20 deg. CMX MO AV <= 25 mg/L all year
001RpHDAILY MN >= 6 SU all year
001RpHDAILY MX <= 9 SU all year
001RSolids, total suspendedMX MO AV <= 25 mg/L all year
001RSolids, total suspendedMX WK AV <= 35 mg/L all year
001RE. coliMX 7D GM <= 126 #/100mL all year
001RE. coliDAILY MX <= 500 #/100mL 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