TANGENT, CITY OF

NPDES permit OR0031917 · Minor POTW · administratively continued, expires 2017-06-30 · 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.

This permit expired on 2017-06-30 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

0values over a limit
0required values missing, on 0 form(s)
0of 11 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among OR permits in EPA's filings — check your permit).

Limits in force (28)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only Apr
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 50 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 100 lb/d Jan, Feb, Mar, Apr, 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 <= 75 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001pHDAILY MN >= 6 SU Jan, Feb, Mar, Apr, Nov, Dec
001pHDAILY MX <= 9 SU Jan, Feb, Mar, Apr, Nov, Dec
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Solids, total suspendedMO AVG <= 50 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 83 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX <= 170 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 <= 120 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Chlorine, total residualMO AVG <= .05 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Chlorine, total residualDAILY MX <= .06 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
001Flow, totalDAILY MX <= 0 gal May, Jun, Jul, Aug, Sep, Oct
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