ASHLAND, CITY OF

NPDES permit OR0026255 · Major POTW · effective, expires 2027-01-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 56 forms filed late

Last period with anything received: 2026-08-31.

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 (72)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.4 SU all year
001pHDAILY MX <= 8.6 SU all year
001pHMO MIN report only all year
001pHMO MAX report only all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 6.1 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 3.8 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
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, carbonaceous [5 day, 20 C]MO AVG report only all year
002pHDAILY MN >= 6.4 SU all year
002pHDAILY MX <= 8.6 SU all year
002Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L Jan, Feb, Mar, Apr, Dec
002Nitrogen, ammonia total [as N]DAILY MX <= 3.8 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, ammonia total [as N]DAILY MX <= 6.1 mg/L Jan, Feb, Mar, Apr, Dec
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
004Temperature, water deg. centigradeDAILY MX report only all year
004Temperature, water deg. centigradeMX 7D AV report only all year
004Solids, total suspendedMO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
004Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, Dec
004Solids, total suspendedMO AVG <= 96 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
004Solids, total suspendedMO AVG <= 400 lb/d Jan, Feb, Mar, Apr, Dec
004Solids, total suspendedDAILY MX <= 480 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
004Solids, total suspendedDAILY MX <= 1500 lb/d Jan, Feb, Mar, Apr, Dec
004Solids, total suspendedMX WK AV <= 45 mg/L Jan, Feb, Mar, Apr, Dec
004Solids, total suspendedMX WK AV <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
004Solids, total suspendedMX WK AV <= 920 lb/d Jan, Feb, Mar, Apr, Dec
004Solids, total suspendedMX WK AV <= 180 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
004Nitrogen, ammonia total [as N]MO AVG <= 45 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
004Phosphorus, total [as P]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
004Phosphorus, total [as P]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
004Phosphorus, total [as P]MO AVG <= 2 lb/d May, Jun, Jul, Aug, Sep, Oct
004Hardness, total [as CaCO3]DAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004E. coliMO GEO <= 126 #/100mL all year
004E. coliDAILY MX <= 406 #/100mL all year
004E. coliMO GEO <= 126 #/100mL all year
004E. coliDAILY MX report only all year
004Excess thermal loadMX 7D AV <= 5.1 mkcal/day Jan
004Excess thermal loadMX 7D AV <= 5.4 mkcal/day Feb
004Excess thermal loadMX 7D AV <= 5.6 mkcal/day Mar
004Excess thermal loadMX 7D AV <= 5 mkcal/day Apr
004Excess thermal loadMX 7D AV <= 6.4 mkcal/day May
004Excess thermal loadMX 7D AV <= 6.3 mkcal/day Jun
004Excess thermal loadMX 7D AV <= 7 mkcal/day Jul
004Excess thermal loadMX 7D AV <= 7.7 mkcal/day Aug
004Excess thermal loadMX 7D AV <= 2.8 mkcal/day Sep
004Excess thermal loadMX 7D AV <= 2 mkcal/day Oct
004Excess thermal loadMX 7D AV <= 3.1 mkcal/day Nov
004Excess thermal loadMX 7D AV <= 4.4 mkcal/day Dec
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L May, Jun, Jul
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L Aug, Sep, Oct, Nov
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 400 lb/d Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 113 lb/d May, Jun, Jul
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 59 lb/d Aug, Sep, Oct, Nov
004BOD, carbonaceous [5 day, 20 C]DAILY MX <= 1500 lb/d Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]DAILY MX <= 630 lb/d May, Jun, Jul
004BOD, carbonaceous [5 day, 20 C]DAILY MX <= 630 lb/d Aug, Sep, Oct, Nov
004BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]MX WK AV <= 15 mg/L May, Jun, Jul
004BOD, carbonaceous [5 day, 20 C]MX WK AV <= 15 mg/L Aug, Sep, Oct, Nov
004BOD, carbonaceous [5 day, 20 C]MX WK AV <= 920 lb/d Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]MX WK AV <= 350 lb/d May, Jun, Jul
004BOD, carbonaceous [5 day, 20 C]MX WK AV <= 350 lb/d Aug, Sep, Oct, Nov
004Solids, suspended percent removalMO AV MN >= 85 % all year
004Carbonaceous oxygen demand, % removalMO AV MN >= 85 % 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