National Water Infrastructure LLC - Ultima Plaza

NPDES permit LA0126950 · Minor NON-POTW · effective, expires 2028-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

4values over a limit
0required values missing, on 0 form(s)
0of 34 forms filed late

Last period with anything received: 2026-06-30. Most often over: Chlorine, total residual (2), BOD, carbonaceous [5 day, 20 C] (2).

Reporting

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

Limits in force (87)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AV MN >= 5 mg/L all year
001Oxygen, dissolved [DO]MO AV MN >= 5 mg/L all year
001pHINST MIN >= 6 SU all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG <= 14.64 lb/d all year
001Solids, total suspendedMO AVG <= 14.64 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG 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
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.95 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.95 lb/d all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Chloride [as Cl]MO AVG report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG 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
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualINST MAX <= .033 mg/L all year
001Chlorine, total residualINST MAX <= .033 mg/L all year
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedMO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4.88 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4.88 lb/d all year
101Solids, total suspendedMO AVG <= 15 mg/L all year
101Solids, total suspendedMO AVG <= 15 mg/L all year
101Solids, total suspendedDAILY MX <= 23 mg/L all year
101Solids, total suspendedDAILY MX <= 23 mg/L all year
101Oil & GreaseDAILY MX <= 15 mg/L all year
101Oil & GreaseDAILY MX <= 15 mg/L all year
101Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
101Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
101Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L all year
101Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101Coliform, fecal generalMO AVG <= 200 CFU/100mL all year
101Coliform, fecal generalMO AVG <= 200 CFU/100mL all year
101Coliform, fecal generalDAILY MX <= 400 CFU/100mL all year
101Coliform, fecal generalDAILY MX <= 400 CFU/100mL all year
101BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 mg/L all year
101BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 mg/L all year
101BOD, carbonaceous [5 day, 20 C]DAILY MX <= 10 mg/L all year
101BOD, carbonaceous [5 day, 20 C]DAILY MX <= 10 mg/L all year
201Solids, total suspendedMO AVG <= 15 mg/L all year
201Solids, total suspendedMO AVG <= 15 mg/L all year
201Solids, total suspendedDAILY MX <= 23 mg/L all year
201Solids, total suspendedDAILY MX <= 23 mg/L all year
201Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
201Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L all year
201Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L all year
201Nitrogen, ammonia total [as N]DAILY MX <= 4 mg/L all year
201Flow, in conduit or thru treatment plantMO AVG report only all year
201Flow, in conduit or thru treatment plantMO AVG report only all year
201Flow, in conduit or thru treatment plantDAILY MX report only all year
201Flow, in conduit or thru treatment plantDAILY MX report only all year
201Coliform, fecal generalMO AVG <= 200 CFU/100mL all year
201Coliform, fecal generalMO AVG <= 200 CFU/100mL all year
201Coliform, fecal generalDAILY MX <= 400 CFU/100mL all year
201Coliform, fecal generalDAILY MX <= 400 CFU/100mL all year
201BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 mg/L all year
201BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 mg/L all year
201BOD, carbonaceous [5 day, 20 C]DAILY MX <= 10 mg/L all year
201BOD, carbonaceous [5 day, 20 C]DAILY MX <= 10 mg/L 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