WEST RANKIN UTILITY AUTHORITY WASTEWATER TREATMENT FACILITY

NPDES permit MS0061743 · Major POTW · effective, expires 2030-02-28 · 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 11 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (61)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001Oxygen, dissolved [DO]MINIMUM report only all year
001Oxygen, dissolved [DO]MAXIMUM report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 5004 lb/d all year
001Solids, total suspendedMX WK AV <= 7506 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMX WK AV report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMX WK AV report only all year
001Nitrogen, total [as N]MO AVG <= 11.5 mg/L all year
001Nitrogen, total [as N]MX WK AV <= 17.25 mg/L all year
001Nitrogen, total [as N]MO AVG <= 1918 lb/d all year
001Nitrogen, total [as N]MX WK AV <= 2877 lb/d all year
001Nitrogen, total [as N]MX MO AV report only all year
001Nitrogen, total [as N]MX WK AV report only all year
001Nitrogen, total [as N]MX MO AV report only all year
001Nitrogen, total [as N]MX WK AV report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.7 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 2.55 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX WK AV <= 3 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 284 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 334 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 425 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX WK AV <= 500 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MX WK AV report only all year
001Phosphorus, total [as P]MO AVG <= 2.6 mg/L all year
001Phosphorus, total [as P]MX WK AV <= 3.9 mg/L all year
001Phosphorus, total [as P]MO AVG <= 434 lb/d all year
001Phosphorus, total [as P]MX WK AV <= 651 lb/d all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]MX WK AV report only all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]MX WK AV report only all year
001Flow, in conduit or thru treatment plantMO AVG <= 20 MGD all year
001Flow, in conduit or thru treatment plantMX WK AV report only all year
001Chlorine, total residualMO AVG <= .109 mg/L all year
001Chlorine, total residualMX WK AV <= .189 mg/L all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX WK AV <= 410 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 12 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 6 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 18 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 9 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 2001 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 1000 lb/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 3002 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1501 lb/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV report only all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001Carbonaceous oxygen demand, % removalMINIMUM >= 85 % all year
001Sludge settleability 30 minuteMINIMUM report only all year
001Sludge settleability 30 minuteMAXIMUM 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