VERNONIA, CITY OF

NPDES permit OR0022560 · Minor POTW · effective, expires 2029-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

4values over a limit
0required values missing, on 0 form(s)
6of 39 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (3), BOD, 5-day, percent removal (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 (48)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMX 7D AV report only all year
001Flow rateMO MIN report only May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CMO AVG <= 140 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 140 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CDAILY MX <= 280 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 280 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 210 lb/d all year
001pHDAILY MN >= 6.3 SU all year
001pHDAILY MX <= 9 SU all year
001pHMO MIN report only all year
001pHMO MAX report only all year
001Solids, total suspendedMO AVG <= 50 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspendedMO AVG <= 50 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG <= 230 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspendedMO AVG <= 230 lb/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedDAILY MX <= 460 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Solids, total suspendedDAILY MX <= 460 lb/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG <= 80 mg/L all year
001Solids, total suspendedWKLY AVG <= 350 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO MAX report only Jan, Feb, Mar, Apr, Dec
001Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar, Apr, May, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Flow, in conduit or thru treatment plantDAILY MX <= .2 MGD May, Jun, Jul, Aug, Sep, Oct, Nov
001Flow, in conduit or thru treatment plantDAILY MX <= 0 MGD May, Jun, Jul, Aug, Sep, Oct, Nov
001Chlorine, total residualMO AVG <= .05 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Chlorine, total residualDAILY MX <= .05 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001E. coliMO GEO <= 126 #/100mL all year
001E. coliDAILY MX <= 406 #/100mL all year
001E. coliMO GEO <= 126 #/100mL all year
001E. coliDAILY MX report only all year
001Excess thermal loadMX 7D AV <= 8.99 mkcal/day Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Excess thermal loadMX 7D AV <= 8.97 mkcal/day May, Jun, Jul, Aug
001BOD, 5-day, percent removalMO AV MN >= 65 % all year
001Solids, suspended percent removalMO AV MN >= 65 % all year
001Chlorine usageMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX <= 0 MGD 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