CLARKSDALE PUBLIC UTILITIES, LEWIS L WILKINS GENERATING STATION

NPDES permit MS0001139 · Minor NON-POTW · administratively continued, expires 2025-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-04-30 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)
5of 34 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 (46)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Iron, total recoverableMO AVG report only all year
001Iron, total recoverableDAILY MX report only 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
001Chlorination durationDAILY MX <= 120 min all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Iron, total recoverableMO AVG report only all year
002Iron, total recoverableDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualMO AVG <= .011 mg/L all year
002Chlorine, total residualDAILY MX <= .019 mg/L all year
002Chlorination durationDAILY MX <= 120 min all year
101pHMINIMUM >= 6 SU all year
101pHMAXIMUM <= 9 SU all year
101Solids, total suspendedQRTR AVG <= 30 mg/L all year
101Solids, total suspendedDAILY MX <= 100 mg/L all year
101Oil & grease [freon extr.-IR meth] tot, RCQRTR AVG <= 15 mg/L all year
101Oil & grease [freon extr.-IR meth] tot, RCDAILY MX <= 20 mg/L all year
101Flow, in conduit or thru treatment plantQRTR AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
102pHMINIMUM >= 6 SU all year
102pHMAXIMUM <= 9 SU all year
102Solids, total suspendedQRTR AVG <= 30 mg/L all year
102Solids, total suspendedDAILY MX <= 100 mg/L all year
102Oil & grease [freon extr.-IR meth] tot, RCQRTR AVG <= 15 mg/L all year
102Oil & grease [freon extr.-IR meth] tot, RCDAILY MX <= 20 mg/L all year
102Flow, in conduit or thru treatment plantQRTR AVG report only all year
102Flow, in conduit or thru treatment plantDAILY MX report only all year
201pHMINIMUM >= 6 SU all year
201pHMAXIMUM <= 9 SU all year
201Solids, total suspendedQRTR AVG <= 30 mg/L all year
201Solids, total suspendedDAILY MX <= 100 mg/L all year
201Oil & grease [freon extr.-IR meth] tot, RCQRTR AVG <= 15 mg/L all year
201Oil & grease [freon extr.-IR meth] tot, RCDAILY MX <= 20 mg/L all year
201Flow, in conduit or thru treatment plantQRTR AVG report only all year
201Flow, in conduit or thru treatment plantDAILY 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