NASA JOHN C STENNIS SPACE CENTER

NPDES permit MS0021610 · Minor FEDERAL · effective, expires 2028-01-31 · 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

5values over a limit
0required values missing, on 0 form(s)
0of 35 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oxygen, dissolved [DO] (3), Oil & Grease (2).

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 (67)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 6 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 9 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY 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
001E. coliMO AVG <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Nitrogen, total [as N]MO AVG report only all year
002Nitrogen, total [as N]DAILY MX report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY AV report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002E. coliMO AVG <= 126 #/100mL all year
002E. coliDAILY MX <= 410 #/100mL all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
002BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, total suspendedANNL AVG <= 30 mg/L all year
008Solids, total suspendedANNL MAX <= 45 mg/L all year
008Nitrogen, total [as N]ANNL AVG report only all year
008Nitrogen, total [as N]ANNL MAX report only all year
008Phosphorus, total [as P]ANNL AVG report only all year
008Phosphorus, total [as P]ANNL MAX report only all year
008Flow, in conduit or thru treatment plantANNL AVG report only all year
008Flow, in conduit or thru treatment plantANNL MAX report only all year
008E. coliANNL AVG <= 126 #/100mL all year
008E. coliANNL MAX <= 410 #/100mL all year
008BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 30 mg/L all year
008BOD, carbonaceous [5 day, 20 C]ANNL MAX <= 45 mg/L all year
010pHMINIMUM >= 6 SU all year
010pHMAXIMUM <= 9 SU all year
010Solids, total suspendedANNL AVG <= 30 mg/L all year
010Solids, total suspendedANNL MAX <= 45 mg/L all year
010Nitrogen, total [as N]ANNL AVG report only all year
010Nitrogen, total [as N]ANNL MAX report only all year
010Phosphorus, total [as P]ANNL AVG report only all year
010Phosphorus, total [as P]ANNL MAX report only all year
010Flow, in conduit or thru treatment plantANNL AVG report only all year
010Flow, in conduit or thru treatment plantANNL MAX report only all year
010E. coliANNL AVG <= 126 #/100mL all year
010E. coliANNL MAX <= 410 #/100mL all year
010BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 30 mg/L all year
010BOD, carbonaceous [5 day, 20 C]ANNL MAX <= 45 mg/L all year
011pHMINIMUM >= 6 SU all year
011pHMAXIMUM <= 9 SU all year
011Solids, total suspendedMO AVG <= 30 mg/L all year
011Solids, total suspendedDAILY MX <= 45 mg/L all year
011Oil & GreaseMO AVG <= 10 mg/L all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, 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