CSWR-TEXAS UTILITY OPERATING COMPANY LLC

NPDES permit TX0090603 · Minor NON-POTW · effective, expires 2031-02-27 · 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

5values over a limit
0required values missing, on 0 form(s)
1of 12 forms filed late

Last period with anything received: 2026-08-31. Most often over: BOD, carbonaceous [5 day, 20 C] (4), Solids, total suspended (1).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (22)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 5 mg/L Jan, Feb, Nov, Dec
001Oxygen, dissolved [DO]MO MIN >= 6 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 5 mg/L all year
001Solids, total suspendedSINGGRAB <= 30 mg/L all year
001Solids, total suspendedDAILY AV <= 13 lb/d all year
001Nitrogen, ammonia total [as N]DAILY AV <= 2 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY AV <= 1.6 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]SINGGRAB <= 15 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]SINGGRAB <= 15 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY AV <= 5 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY AV <= 4 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantDAILY AV <= .3 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO MIN >= 1 mg/L all year
001Chlorine, total residualMO MAX <= 4 mg/L all year
001E. coli, colony forming units [CFU]DAILY AV <= 126 CFU/100mL all year
001E. coli, colony forming units [CFU]SINGGRAB <= 399 CFU/100mL all year
001BOD, carbonaceous [5 day, 20 C]DAILY AV <= 5 mg/L all year
001BOD, carbonaceous [5 day, 20 C]SINGGRAB <= 30 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY AV <= 13 lb/d 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