LEWISTON, CITY OF

NPDES permit ID0022055 · Major POTW · administratively continued, expires 2021-01-31 · 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.

This permit expired on 2021-01-31 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

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

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

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among ID permits in EPA's filings — check your permit).

Limits in force (90)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX WK AV report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001ConductivityINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001ConductivityINST MAX report only Jul, Aug, Sep
001Oxygen, dissolved [DO]INST MIN report only all year
001Oxygen, dissolved [DO]INST MIN report only all year
001Oxygen, dissolved [DO]MO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 1430 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 2145 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 1430 lb/d all year
001Solids, total suspendedWKLY AVG <= 2145 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]ANNL MAX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]ANNL MAX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]ANNL MAX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]ANNL MAX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Carbon, dissolved organic [as C]INST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Carbon, dissolved organic [as C]INST MAX report only Jul, Aug, Sep
001Cyanide, weak acid, dissociableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Cyanide, weak acid, dissociableINST MAX report only Jul, Aug, Sep
001Hardness, total [as CaCO3]INST MIN report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Hardness, total [as CaCO3]INST MIN report only Jul, Aug, Sep
001Hardness, total [as CaCO3]INST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Hardness, total [as CaCO3]INST MAX report only Jul, Aug, Sep
001Arsenic, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Arsenic, total recoverableINST MAX report only Jul, Aug, Sep
001Selenium, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Selenium, total recoverableINST MAX report only Jul, Aug, Sep
001Nickel, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Nickel, total recoverableINST MAX report only Jul, Aug, Sep
001Silver total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Silver total recoverableINST MAX report only Jul, Aug, Sep
001Zinc, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Zinc, total recoverableINST MAX report only Jul, Aug, Sep
001Lead, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Lead, total recoverableINST MAX report only Jul, Aug, Sep
001Copper, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Copper, total recoverableINST MAX report only Jul, Aug, Sep
001Oil and greaseANNL MAX report only all year
001Chromium, trivalent total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Chromium, trivalent total recoverableINST MAX report only Jul, Aug, Sep
001E. coli, MTEC-MFMO GEOMN <= 126 CFU/100mL all year
001E. coli, MTEC-MFINST MAX <= 406 CFU/100mL all year
001Floating solids, waste or visible foam-visualMO MAX <= 0 N=0;Y=1 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
001Chlorine, total residualANNL MAX report only all year
001Chlorine, total residualMO AVG <= 340 ug/L all year
001Chlorine, total residualDAILY MX <= 700 ug/L all year
001Chlorine, total residualMO AVG <= 14.29 lb/d all year
001Chlorine, total residualDAILY MX <= 33.33 lb/d all year
001Solids, total dissolvedANNL MAX report only all year
001Mercury, total recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Mercury, total recoverableINST MAX report only Jul, Aug, Sep
001Chromium, hexavalent tot recoverableINST MAX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Chromium, hexavalent tot recoverableINST MAX report only Jul, Aug, Sep
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
RECTemperature, water deg. centigradeINST MAX report only all year
RECOxygen, dissolved [DO]INST MIN report only all year
RECpHINST MIN report only all year
RECpHINST MAX report only all year
RECAlkalinity, total [as CaCO3]INST MIN report only all year
RECAlkalinity, total [as CaCO3]INST MAX report only all year
RECNitrogen, ammonia total [as N]INST MAX report only all year
RECNitrogen, Kjeldahl, total [as N]INST MAX report only all year
RECNitrite + Nitrate total [as N]INST MAX report only all year
RECPhosphate, ortho [as PO4]INST MAX report only all year
RECPhosphorus, total [as P]INST MAX report only all year
RECHardness, total [as CaCO3]INST MIN report only all year
RECHardness, total [as CaCO3]INST MAX 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