CONSTELLATION ENERGY GENERATION LLC

NPDES permit PA0052221 · Minor NON-POTW · effective, expires 2030-03-31 · 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
14required values missing, on 2 form(s)
0of 14 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 PA permits in EPA's filings — check your permit).

Limits in force (18)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Aug, Sep
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L May, Jun, Jul
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Nitrogen, ammonia total [as N]QRTR AVG report only all year
001Nitrogen, Kjeldahl, total [as N]QRTR AVG report only all year
001Nitrite + Nitrate total [as N]QRTR AVG report only all year
001Phosphorus, total [as P]QRTR AVG report only all year
001Phosphate, ortho [as P]QRTR AVG report only all year
001Phenolics, total recoverableQRTR AVG 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
001E. coliQRTR AVG report only all year
001E. coliINST MAX report only all year
001Coliform, fecal generalQRTR AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Coliform, fecal generalGEO MEAN <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep
001Coliform, fecal generalINST MAX report only Jan, Feb, Mar, Oct, Nov, Dec
001Coliform, fecal generalINST MAX <= 1000 #/100mL Apr, May, Jun, Jul, Aug, Sep

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