C.G. MATHEWSUSAF SHAW AIR FORCE BASE

NPDES permit SC0024970 · Minor FEDERAL · administratively continued, expires 2008-05-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2008-05-31 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
1required values missing, on 1 form(s)
4of 27 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (46)

OutfallParameterStatisticLimitMonths
002Oxygen, dissolved [DO]INST MIN >= 6 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L all year
002BOD, 5-day, 20 deg. CDAILY MX <= 30 mg/L all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 8.5 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 1.81 mg/L Jan, Feb, Nov, Dec
002Nitrogen, ammonia total [as N]MO AVG <= 1.13 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
002Nitrogen, ammonia total [as N]DAILY MX <= 3.62 mg/L Jan, Feb, Nov, Dec
002Nitrogen, ammonia total [as N]DAILY MX <= 2.26 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
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 plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX <= 1.2 MGD all year
002Chlorine, total residualMO AVG <= .5 mg/L all year
002Chlorine, total residualDAILY MX <= 1 mg/L all year
002Coliform, fecal general30DAVGEO <= 200 #/100mL all year
002Coliform, fecal generalDAILY MX <= 400 #/100mL all year
007pHMINIMUM >= 6 SU all year
007pHMAXIMUM <= 8.5 SU all year
007Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
007Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
007Carbon, tot organic [TOC]DAILY MX <= 110 mg/L all year
007Copper, total [as Cu]DAILY MX report only all year
007Lead, total [as Pb]DAILY MX report only all year
007Methyl tert-butyl ether [MTBE]DAILY MX report only all year
007TolueneDAILY MX report only all year
007BenzeneDAILY MX report only all year
007EthylbenzeneDAILY MX report only all year
007NaphthaleneDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Xylene [mix of m+o+p]DAILY MX report only all year
007Pass/Fail Static 48Hr Acute Ceriodaphnia dubiaDAILY MX report only all year
02ABOD, 5-day, 20 deg. CMO AVG report only all year
02ABOD, 5-day, 20 deg. CDAILY MX report only all year
02ApHINST MIN >= 6 SU all year
02ApHINST MAX <= 8.5 SU all year
02ASolids, total suspendedMO AVG <= 30 mg/L all year
02ASolids, total suspendedDAILY MX <= 45 mg/L all year
02ATetrachloroethyleneMO AVG <= 5 ug/L all year
02ATetrachloroethyleneDAILY MX <= 10 ug/L all year
02ATrichloroethyleneMO AVG <= 5 ug/L all year
02ATrichloroethyleneDAILY MX <= 10 ug/L all year
02AFlow, in conduit or thru treatment plantMO AVG report only all year
02AFlow, 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