Evonik Corporation

NPDES permit SC0049301 · Minor NON-POTW · administratively continued, expires 2021-05-31 · 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 2021-05-31 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
0required values missing, on 0 form(s)
0of 25 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).

Limits in force (25)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitINST MAX <= 120 deg F all year
001Oxygen demand, ultimateMO AVG report only all year
001Oxygen demand, ultimateDAILY MX report only all year
001Oxygen, dissolved [DO]MO AV MN >= 4 mg/L all year
001BOD, [ult. all stages]DAILY MX report only all year
001pHINST MIN report only all year
001pHINST MAX report only all year
001Solids, total suspendedMO AVG <= 100 mg/L all year
001Solids, total suspendedDAILY MX <= 200 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]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
001Length of longest pH excursionINST MAX <= 60 min all year
001% of time exceeding pH limitsINST MAX <= 1 % all year
001Carbonaceous BOD, 5 day, 20 deg C filtrdMO AVG report only all year
001Carbonaceous BOD, 5 day, 20 deg C filtrdDAILY MX report only all year
001Carbonaceous BOD, 5 day, 20 deg C filtrdMO AVG report only all year
001Carbonaceous BOD, 5 day, 20 deg C filtrdDAILY MX report only all year
001LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)DAILY MX report only all year
001% Effect Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AVG <= 25 % all year
001% Effect Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)DAILY MX <= 40 % all year
001Pass/Fail Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)DAILY MX <= 0 pass=0;fail=1 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