MISSISSIPPI POWER COMPANY, DAVID M RATCLIFFE

NPDES permit MS0061751 · Minor NON-POTW · administratively continued, expires 2024-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-11-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 8 forms filed late

Last period with anything received: 2026-06-30.

Reporting

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

Limits in force (28)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedQRTR AVG <= 30 mg/L all year
001Solids, total suspendedQB <= 45 mg/L all year
001Solids, total suspendedQRTR AVG report only all year
001Solids, total suspendedQB report only all year
001Nitrogen, total [as N]QRTR AVG report only all year
001Nitrogen, total [as N]QB report only all year
001Nitrogen, ammonia total [as N]QRTR AVG <= 4 mg/L all year
001Nitrogen, ammonia total [as N]QB <= 6 mg/L all year
001Nitrogen, ammonia total [as N]QRTR AVG report only all year
001Nitrogen, ammonia total [as N]QB report only all year
001Phosphorus, total [as P]QRTR AVG report only all year
001Phosphorus, total [as P]QB report only all year
001Flow, in conduit or thru treatment plantQRTR AVG <= 12.5 MGD all year
001Flow, in conduit or thru treatment plantQB report only all year
001BOD, carbonaceous [5 day, 20 C]QRTR AVG <= 30 mg/L all year
001BOD, carbonaceous [5 day, 20 C]QB <= 45 mg/L all year
101Solids, total suspendedQRTR AVG <= 30 mg/L all year
101Solids, total suspendedQB <= 45 mg/L all year
101Flow, in conduit or thru treatment plantQB report only all year
101Chlorine, total residualMINIMUM >= .1 mg/L all year
101Chlorine, total residualMAXIMUM <= 1 mg/L all year
101E. coliQRTR AVG <= 126 #/100mL all year
101E. coliQB <= 410 #/100mL all year
101BOD, carbonaceous [5 day, 20 C]QRTR AVG <= 30 mg/L all year
101BOD, carbonaceous [5 day, 20 C]QB <= 45 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