YONCALLA, CITY OF

NPDES permit OR0022454 · Minor POTW · administratively continued, expires 2026-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2026-08-31 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

9values over a limit
1required values missing, on 1 form(s)
3of 28 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, percent removal (3), pH (2), E. coli (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (38)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Temperature, water deg. centigradeMO MAX report only Jan, Feb, Mar, Apr, Nov, Dec
001Temperature, water deg. centigradeMX 7D AV report only Jan, Feb, Mar, Apr, Nov, Dec
001Flow rateMO MAX report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, Sep, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 120 lb/d Jan, Feb, Mar, Apr, Sep, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 250 lb/d Jan, Feb, Mar, Apr, Sep, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 180 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001pHDAILY MN >= 6.3 SU Jan, Feb, Mar, Apr, Nov, Dec
001pHDAILY MX <= 9 SU Jan, Feb, Mar, Apr, Nov, Dec
001pHMO MIN report only all year
001pHMO MAX report only all year
001pHMO MAX report only Jan, Feb, Mar, Apr, Nov, Dec
001Alkalinity, total [as CaCO3]MO MAX report only Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 50 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 200 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX <= 410 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG <= 75 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedWKLY AVG <= 310 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Flow, in conduit or thru treatment plantDAILY MX <= 0 MGD May, Jun, Jul, Aug, Sep, Oct
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 residualMO AVG <= .05 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Chlorine, total residualDAILY MX <= .05 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001E. coliMO GEO <= 126 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001E. coliDAILY MX <= 406 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001E. coliMO GEO <= 126 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001E. coliDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, percent removalMO AV MN >= 85 % Jan, Feb, Mar, Apr, Nov, Dec
001Solids, suspended percent removalMO AV MN >= 65 % Jan, Feb, Mar, Apr, Nov, Dec
001Chlorine usageMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec

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