USBOR-FLAMING GORGE DAM

NPDES permit UT0020338 · Minor FEDERAL · effective, expires 2027-11-30 · 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
0required values missing, on 0 form(s)
1of 12 forms filed late

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

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 (20)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. CMX MO AV <= 25 mg/L all year
001BOD, 5-day, 20 deg. CMX 7D AV <= 35 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedMX MO AV <= 25 mg/L all year
001Solids, total suspendedMX 7D AV <= 35 mg/L all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Flow, in conduit or thru treatment plantMAXIMUM report only all year
001Flow, in conduit or thru treatment plantMX MO AV <= .0064 MGD all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX WK AV <= 157 #/100mL all year
001BOD, 5-day, percent removalMN % RMV >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
SUMChlorine, total residualANNL TOT report only all year
SUMSolids, total dissolvedANNL TOT report only all year
SUMSolids, total dissolvedANNL TOT report only all year
SUMSolids, total dissolvedANNL TOT <= 400 mg/L 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