Buzzi Unicem USA

NPDES permit MO0000809 · Major NON-POTW · administratively continued, expires 2024-06-30 · 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.

This permit expired on 2024-06-30 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

4values over a limit
0required values missing, on 0 form(s)
0of 26 forms filed late

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (2), Nitrogen, ammonia total [as N] (2).

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 (62)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheitMO AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Solids, total suspendedMO AVG <= 50 mg/L all year
001Solids, settleableDAILY MX <= 1.5 mL/L all year
001Solids, settleableMO AVG <= 1 mL/L all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001ChlorideDAILY MX report only all year
001ChlorideMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX report only all year
001Chlorides + SulfatesDAILY MX report only all year
001Chlorides + SulfatesMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX report only all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 50 mg/L all year
002Solids, total suspendedMO AVG <= 50 mg/L all year
002Solids, settleableDAILY MX <= 1.5 mL/L all year
002Solids, settleableMO AVG <= 1 mL/L all year
002Sulfate, total [as SO4]DAILY MX report only all year
002Sulfate, total [as SO4]MO AVG report only all year
002ChlorideDAILY MX report only all year
002ChlorideMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only all year
002Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX report only all year
002Chlorides + SulfatesDAILY MX report only all year
002Chlorides + SulfatesMO AVG report only all year
003BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Nitrogen, ammonia total [as N]DAILY MX <= 3.6 mg/L Apr, May, Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]DAILY MX <= 7.5 mg/L Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, ammonia total [as N]MO AVG <= 1.4 mg/L Apr, May, Jun, Jul, Aug, Sep
003Nitrogen, ammonia total [as N]MO AVG <= 2.9 mg/L Jan, Feb, Mar, Oct, Nov, Dec
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003E. coliDAILY MX <= 1030 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
003E. coli30DA GM <= 206 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
007pHMINIMUM >= 6 SU all year
007pHMAXIMUM <= 9 SU all year
007Solids, total suspendedDAILY MX <= 50 mg/L all year
007Storm water flowDAILY MX report only all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, total suspendedDAILY MX <= 50 mg/L all year
008Storm water flowDAILY 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