KOOSKIA, CITY OF

NPDES permit ID0021814 · Minor POTW · administratively continued, expires 2024-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-12-31 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

8values over a limit
6required values missing, on 1 form(s)
0of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (7), Solids, suspended percent removal (1).

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 (25)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX <= 26 deg C all year
001Oxygen, dissolved [DO]DAILY MX 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 <= 50 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 74 lb/d all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG <= 65 mg/L all year
001Solids, total suspendedMO AVG <= 74 lb/d all year
001Solids, total suspendedWKLY AVG <= 107 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Oil and greaseDAILY MX report only all year
001E. coli, MTEC-MFGEO MEAN <= 126 CFU/100mL all year
001E. coli, MTEC-MFINST MAX <= 406 CFU/100mL 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
001Solids, total dissolvedDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 65 % 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