Evonik Corporation

NPDES permit MD0000531 · Minor NON-POTW · effective, expires 2027-06-30 · 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.

EPA's record, 2025-09-01 to 2026-08-31

3values over a limit
1required values missing, on 1 form(s)
0of 31 forms filed late

Last period with anything received: 2026-06-30. Most often over: pH (3).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MD permits in EPA's filings — check your permit).

Limits in force (50)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001FlowMO AVG report only all year
001FlowDAILY MX report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 8.5 SU all year
002pHMAXIMUM <= 8.5 SU all year
002Flow, in conduit or thru treatment plantMO AVG 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
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003pHMINIMUM report only all year
003pHMAXIMUM report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX <= 40 mg/L all year
003Nitrogen, total [as N]MO AVG report only all year
003Nitrogen, total [as N]DAILY MX report only all year
003Nitrogen, total [as N]MO AVG report only all year
003Nitrogen, total [as N]DAILY MX report only all year
003Nitrogen, total [as N]MO TOTAL report only all year
003Nitrogen, total [as N]CUM TOTL report only all year
003Nitrogen, ammonia total [as N]MO AVG report only all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrogen, ammonia total [as N]MO AVG report only all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]MO AVG report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]MO AVG report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Nitrogen, inorganic totalMO AVG report only all year
003Nitrogen, inorganic totalDAILY MX report only all year
003Nitrogen, inorganic totalMO AVG report only all year
003Nitrogen, inorganic totalDAILY MX report only all year
003Phosphorus, total [as P]MO AVG report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Phosphorus, total [as P]MO AVG report only all year
003Phosphorus, total [as P]CUM TOTL report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Phosphorus, total [as P]MO TOTAL report only all year
003Aluminum, total [as Al]DAILY MX report only all year
003Aluminum, total [as Al]DAILY MX report only all year
003FlowMO AVG report only all year
003FlowDAILY MX report only all year
003SulfateMO AVG report only all year
003SulfateDAILY MX report only all year
003SulfateDAILY MX <= 155182 lb/d all year
003Flow, totalTOTAL report only all year
003pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
003pH range excursions, monthly total accumMO TOTAL <= 446 min 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