CITY OF CLARKSVILLE

NPDES permit IA0023388 · Minor POTW · effective, expires 2029-03-31 · EPA's file as of 2026-09-19

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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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

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

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 (54)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 80 mg/L all year
001Solids, total suspended7 DA AVG <= 120 mg/L all year
001Nitrogen, ammonia total [as N]30DA AVG <= 12.2 mg/L Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 8.3 mg/L Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 8.3 mg/L May
001Nitrogen, ammonia total [as N]30DA AVG <= 9.3 mg/L Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 6.9 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 26.7 mg/L Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 6.4 mg/L Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 6.9 mg/L Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 6.9 mg/L Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 8.9 mg/L Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 14.5 mg/L Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 7.9 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 12.2 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 8.3 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 8.3 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 9.3 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 6.9 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 26.7 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 6.4 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 6.9 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 6.9 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 8.9 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 14.5 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 7.9 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 152.8 lb/d Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 103.8 lb/d Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 103.8 lb/d May
001Nitrogen, ammonia total [as N]30DA AVG <= 115.8 lb/d Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 85.9 lb/d Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 333.4 lb/d Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 79.9 lb/d Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 85.9 lb/d Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 85.9 lb/d Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 111.5 lb/d Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 181.7 lb/d Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 99 lb/d Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 152.8 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 103.8 lb/d Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 103.8 lb/d May
001Nitrogen, ammonia total [as N]DAILY MX <= 115.8 lb/d Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 85.9 lb/d Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 333.4 lb/d Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 79.9 lb/d Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 85.9 lb/d Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 85.9 lb/d Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 111.5 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 181.7 lb/d Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 99 lb/d Jul
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L 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