City of Troy

NPDES permit AL0084466 · Major POTW · effective, expires 2029-11-30 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 17 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among AL permits in EPA's filings — check your permit).

Limits in force (96)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 625 lb/d all year
001Solids, total suspendedWKLY AVG <= 938 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.1 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 6.1 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 3 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 85.4 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 41.7 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 128 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 62.5 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]WKLY AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]WKLY AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Selenium, total recoverableMO AVG = 5 ug/L all year
001Selenium, total recoverableDAILY MX = 20 ug/L all year
001Thallium, total recoverableMO AVG report only all year
001Silver total recoverableDAILY MX = .976 ug/L all year
001Zinc, total recoverableMO AVG = 197 ug/L all year
001Zinc, total recoverableDAILY MX = 197 ug/L all year
001Copper, total recoverableMO AVG = 12.7 ug/L all year
001Copper, total recoverableDAILY MX = 18 ug/L all year
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 <= .011 mg/L all year
001Chlorine, total residualDAILY MX <= .019 mg/L all year
001E. coliMO AVG <= 548 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001E. coliMO AVG <= 126 #/100mL May, Jun, Jul, Aug, Sep, Oct
001E. coliDAILY MX <= 2507 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001E. coliDAILY MX <= 298 #/100mL May, Jun, Jul, Aug, Sep, Oct
001Toxicity [chronic], Ceriodaphnia dubiaSINGSAMP <= 0 pass=0;fail=1 Feb, May, Aug, Nov
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP <= 0 pass=0;fail=1 Feb, May, Aug, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 14 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 37.5 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 21 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 521 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 291 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 781 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 437 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
002pHDAILY MN report only all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002E. coliDAILY MX report only all year
002BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
003pHDAILY MN report only all year
003pHDAILY MX report only all year
003Solids, total suspendedDAILY MX report only all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003E. coliDAILY MX report only all year
003BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedDAILY MX report only all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
004Nitrite + Nitrate total [as N]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004E. coliDAILY MX report only all year
004BOD, carbonaceous [5 day, 20 C]DAILY MX report only 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