PRESTON, CITY OF

NPDES permit ID0020214 · Major POTW · administratively continued, expires 2022-04-30 · 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.

This permit expired on 2022-04-30 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

10values over a limit
0required values missing, on 0 form(s)
0of 35 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (10).

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 (77)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX WK AV report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001ConductivityMO AVG report only all year
001ConductivityDAILY MX report only all year
001Oxygen, dissolved [DO]INST MIN 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 <= 300 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 450 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 <= 283 lb/d all year
001Solids, total suspendedWKLY AVG <= 450 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedANNL AVG <= 182 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 4.1 mg/L all year
001Nitrogen, ammonia total [as N]INST MAX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 20.5 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 41.1 lb/d all year
001Nitrogen, Kjeldahl, total [as N]INST MAX report only all year
001Nitrite + Nitrate total [as N]INST MAX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MX WK AV report only all year
001Phosphorus, total [as P]INST MAX report only all year
001Phosphorus, total [as P]MO AVG <= 13.6 lb/d all year
001Phosphorus, total [as P]WKLY AVG <= 27.3 lb/d all year
001Carbon, dissolved organic [as C]MO AVG report only all year
001Carbon, dissolved organic [as C]DAILY MX report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Arsenic, total recoverableMO AVG report only all year
001Arsenic, total recoverableDAILY MX report only all year
001Nickel, total recoverableMO AVG report only all year
001Nickel, total recoverableDAILY MX report only all year
001Zinc, total recoverableMO AVG report only all year
001Zinc, total recoverableDAILY MX report only all year
001Copper, total recoverableMO AVG report only all year
001Copper, total recoverableDAILY MX report only all year
001Chromium, hexavalent dissolved [as Cr]MO AVG report only all year
001Chromium, hexavalent dissolved [as Cr]DAILY MX report only all year
001Antimony, total recoverableMO AVG report only all year
001Antimony, total recoverableDAILY MX report only all year
001Oil and greaseINST MAX report only all year
001E. coli, MTEC-MFGEO MEAN <= 126 #/100mL all year
001E. coli, MTEC-MFINST MAX <= 576 #/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 residualINST MAX report only all year
001Solids, total dissolvedINST MAX report only all year
001Mercury, total recoverableMO AVG report only all year
001Mercury, total recoverableDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Toxicity, ChronicMAXIMUM report only all year
RECTemperature, water deg. centigradeINST MAX report only all year
RECTemperature, water deg. centigradeINST MAX report only all year
RECStream flow, instantaneousINST MIN report only all year
RECStream flow, instantaneousMN WK AV report only all year
RECConductivityINST MAX report only all year
RECpHINST MIN report only all year
RECpHINST MAX report only all year
RECpHINST MIN report only all year
RECpHINST MAX report only all year
RECNitrogen, ammonia total [as N]INST MAX report only all year
RECNitrogen, ammonia total [as N]INST MAX report only all year
RECCarbon, dissolved organic [as C]INST MAX report only all year
RECHardness, total [as CaCO3]INST MAX report only all year
RECArsenic, total recoverableINST MAX report only all year
RECNickel, total recoverableINST MAX report only all year
RECZinc, total recoverableINST MAX report only all year
RECCopper, total recoverableINST MAX report only all year
RECAntimony, total recoverableINST 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