City of Chatsworth

NPDES permit GA0032492 · Major 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

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 (the most common figure among GA permits in EPA's filings — check your permit).

Limits in force (99)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L May, Jun, Jul, Aug, Sep, Oct
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L Nov
001Oxygen, dissolved [DO]MINIMUM >= 4 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 20 mg/L Jun
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L Jul, Aug
001BOD, 5-day, 20 deg. CMO AVG <= 5 mg/L Sep
001BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L Oct
001BOD, 5-day, 20 deg. CMO AVG <= 25 mg/L Nov
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 30 mg/L Jun
001BOD, 5-day, 20 deg. CWKLY AVG <= 15 mg/L Jul, Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 7.5 mg/L Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 22.5 mg/L Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 37.5 mg/L Nov
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 500 lb/d Jun
001BOD, 5-day, 20 deg. CMO AVG <= 250 lb/d Jul, Aug
001BOD, 5-day, 20 deg. CMO AVG <= 125 lb/d Sep
001BOD, 5-day, 20 deg. CMO AVG <= 375 lb/d Oct
001BOD, 5-day, 20 deg. CMO AVG <= 626 lb/d Nov
001BOD, 5-day, 20 deg. CMO AVG <= 750 lb/d Jan, Feb, Mar, Apr, May, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 626 lb/d Jun
001BOD, 5-day, 20 deg. CWKLY AVG <= 313 lb/d Jul, Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 156 lb/d Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 469 lb/d Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 782 lb/d Nov
001BOD, 5-day, 20 deg. CWKLY AVG <= 939 lb/d Jan, Feb, Mar, Apr, May, Dec
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 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 <= 751 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, total [as N]MO AVG report only all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 13.7 mg/L Dec
001Nitrogen, ammonia total [as N]MO AVG <= 6.4 mg/L Nov
001Nitrogen, ammonia total [as N]MO AVG <= 3.2 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 17.4 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]MO AVG <= 16.8 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 8.3 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]WKLY AVG <= 20.6 mg/L Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 9.6 mg/L Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.8 mg/L Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 26.1 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 25.2 mg/L Apr
001Nitrogen, ammonia total [as N]WKLY AVG <= 12.5 mg/L May
001Nitrogen, ammonia total [as N]WKLY AVG <= 7.5 mg/L Jun
001Nitrogen, ammonia total [as N]WKLY AVG <= 3 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 343 lb/d Dec
001Nitrogen, ammonia total [as N]MO AVG <= 160 lb/d Nov
001Nitrogen, ammonia total [as N]MO AVG <= 80 lb/d Oct
001Nitrogen, ammonia total [as N]MO AVG <= 435 lb/d Jan, Feb, Mar
001Nitrogen, ammonia total [as N]MO AVG <= 420 lb/d Apr
001Nitrogen, ammonia total [as N]MO AVG <= 208 lb/d May
001Nitrogen, ammonia total [as N]MO AVG <= 125 lb/d Jun
001Nitrogen, ammonia total [as N]MO AVG <= 50 lb/d Jul, Aug, Sep
001Nitrogen, ammonia total [as N]WKLY AVG <= 428 lb/d Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 200 lb/d Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 100 lb/d Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 544 lb/d Jan, Feb, Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 525 lb/d Apr
001Nitrogen, ammonia total [as N]WKLY AVG <= 260 lb/d May
001Nitrogen, ammonia total [as N]WKLY AVG <= 156 lb/d Jun
001Nitrogen, ammonia total [as N]WKLY AVG <= 62.6 lb/d Jul, Aug, Sep
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]WKLY AVG <= 1.5 mg/L all year
001Phosphorus, total [as P]MO AVG <= 25 lb/d all year
001Phosphorus, total [as P]WKLY AVG <= 31.3 lb/d all year
001Copper, total recoverableMO AVG <= 8 ug/L all year
001Copper, total recoverableWKLY AVG <= 10 ug/L all year
001Copper, total recoverableMO AVG <= .2 lb/d all year
001Copper, total recoverableWKLY AVG <= .25 lb/d all year
001Phosphate, ortho [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG <= 3 MGD all year
001Flow, in conduit or thru treatment plantWKLY AVG <= 3.75 MGD all year
001Chlorine, total residualMAXIMUM <= .02 mg/L Jan, Feb, Mar, Apr, May, Jun, Jul, Nov, Dec
001Chlorine, total residualMAXIMUM <= .01 mg/L Aug, Sep, Oct
001E. coliMOAV GEO <= 126 #/100mL all year
001E. coliWE <= 410 #/100mL all year
001Solids, sludge, total, dry weightMO TOTAL report only all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
001NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM 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