Centerstream STL, LLC

NPDES permit MO0000345 · Minor NON-POTW · effective, expires 2027-08-31 · 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.

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

1values over a limit
0required values missing, on 0 form(s)
0of 4 forms filed late

Last period with anything received: 2026-06-30. Most often over: pH (1).

Reporting

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

Limits in force (12)

OutfallParameterStatisticLimitMonths
004Temperature, water deg. fahrenheitDAILY MX report only all year
004Temperature, water deg. fahrenheitMO AVG report only all year
004Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
004Oxygen demand, chem. [high level] [COD]MO AVG report only all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedDAILY MX <= 100 mg/L all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
004Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG 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