CLECO POWER LLC - ST MARY CLEAN ENERGY CENTER

NPDES permit LA0127274 · Minor NON-POTW · effective, expires 2029-06-30 · 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
2required values missing, on 1 form(s)
0of 75 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 LA permits in EPA's filings — check your permit).

Limits in force (59)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG <= 100 deg F all year
001Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Chromium, total [as Cr]MO AVG <= .2 mg/L all year
001Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
001Zinc, total [as Zn]MO AVG <= 1 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/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, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY 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
101pHINST MIN >= 6 SU all year
101pHINST MAX <= 9 SU all year
101Solids, total suspendedMO AVG <= 30 mg/L all year
101Solids, total suspendedDAILY MX <= 100 mg/L all year
101Oil & GreaseMO AVG <= 15 mg/L all year
101Oil & GreaseDAILY MX <= 20 mg/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
201pHINST MIN >= 6 SU all year
201pHINST MAX <= 9 SU all year
201Solids, total suspendedMO AVG <= 30 mg/L all year
201Solids, total suspendedDAILY MX <= 100 mg/L all year
201Oil & GreaseMO AVG <= 15 mg/L all year
201Oil & GreaseDAILY MX <= 20 mg/L all year
201Flow, in conduit or thru treatment plantMO AVG report only all year
201Flow, in conduit or thru treatment plantDAILY MX report only all year
301pHINST MIN >= 6 SU all year
301pHINST MAX <= 9 SU all year
301Solids, total suspendedMO AVG <= 30 mg/L all year
301Solids, total suspendedDAILY MX <= 100 mg/L all year
301Oil & GreaseMO AVG <= 15 mg/L all year
301Oil & GreaseDAILY MX <= 20 mg/L all year
301Flow, in conduit or thru treatment plantMO AVG report only all year
301Flow, in conduit or thru treatment plantDAILY MX report only all year
401pHINST MIN >= 6 SU all year
401pHINST MAX <= 9 SU all year
401Solids, total suspendedMO AVG <= 30 mg/L all year
401Solids, total suspendedDAILY MX <= 100 mg/L all year
401Oil & GreaseMO AVG <= 15 mg/L all year
401Oil & GreaseDAILY MX <= 20 mg/L all year
401Flow, in conduit or thru treatment plantMO AVG report only all year
401Flow, in conduit or thru treatment plantDAILY MX report only all year
501pHINST MIN >= 6 SU all year
501pHINST MAX <= 9 SU all year
501Solids, total suspendedDAILY MX <= 90 mg/L all year
501Solids, total suspendedDAILY MX <= 90 mg/g all year
501Oil & GreaseDAILY MX <= 15 mg/L all year
501Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
501Lead, total [as Pb]DAILY MX <= 50 ug/L all year
501BenzeneDAILY MX <= 50 ug/L all year
501BTEXDAILY MX <= 250 ug/L all year
501Flow, in conduit or thru treatment plantMO AVG report only all year
501Flow, 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