CASCADE, CITY OF

NPDES permit ID0023167 · Minor POTW · administratively continued, expires 2025-02-28 · 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 2025-02-28 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

2values over a limit
0required values missing, on 0 form(s)
0of 55 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, suspended percent removal (1), Solids, total suspended (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 (75)

OutfallParameterStatisticLimitMonths
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 <= 180 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 270 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 <= 180 lb/d all year
001Solids, total suspendedWKLY AVG <= 270 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 13.5 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 50.3 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 81.1 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 302.1 lb/d all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001E. coli, MTEC-MFMO GEOMN <= 126 #/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
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
002BOD, 5-day, 20 deg. CMO AVG report only all year
002BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 180 lb/d all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 270 lb/d all year
002pHINST MIN >= 6.5 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedWKLY AVG <= 45 mg/L all year
002Solids, total suspendedMO AVG <= 180 lb/d all year
002Solids, total suspendedWKLY AVG <= 270 lb/d all year
002Nitrogen, ammonia total [as N]MO AVG <= 13.5 mg/L all year
002Nitrogen, ammonia total [as N]DAILY MX <= 50.3 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 81.1 lb/d all year
002Nitrogen, ammonia total [as N]WKLY AVG <= 302.1 lb/d all year
002Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
002Nitrite + Nitrate total [as N]MO AVG report only all year
002Phosphorus, total [as P]MO AVG report only all year
002E. coli, MTEC-MFMO GEOMN <= 126 #/100mL all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantMX DA AV report only all year
002BOD, 5-day, percent removalMO AV MN >= 85 % all year
002Solids, suspended percent removalMO AV MN >= 85 % all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101BOD, 5-day, 20 deg. CWKLY AVG report only all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101pHINST MIN report only all year
101pHINST MAX report only all year
101Solids, total suspendedMO AVG report only all year
101Solids, total suspendedWKLY AVG report only all year
101Solids, total suspendedMO AVG report only all year
101Nitrogen, ammonia total [as N]MO AVG report only all year
101Nitrogen, ammonia total [as N]DAILY MX report only all year
101Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
101Nitrite + Nitrate total [as N]MO AVG report only all year
101Phosphorus, total [as P]MO AVG report only all year
101E. coli, MTEC-MFMO GEOMN report only all year
101E. coli, MTEC-MFDAILY MX report only all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantMX DA AV report only all year
REC1Temperature, water deg. centigradeMO AVG report only all year
REC1Temperature, water deg. centigradeINST MAX report only all year
REC1pHINST MIN report only all year
REC1pHINST MAX report only all year
REC1Nitrogen, ammonia total [as N]MO AVG report only all year
REC1Phosphorus, total [as P]MO AVG report only all year
REC1E. coli, MTEC-MFMO GEOMN report only all year
REC2Temperature, water deg. centigradeMO AVG report only all year
REC2Temperature, water deg. centigradeINST MAX report only all year
REC2E. coli, MTEC-MFMO GEOMN 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