UNDINE TEXAS ENVIRONMENTAL LLC

NPDES permit TX0100935 · Minor NON-POTW · effective, expires 2031-02-20 · 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

3values over a limit
0required values missing, on 0 form(s)
0of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (2), Enterococci (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 (27)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 10 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 25 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 15 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]DAILY AV <= 3 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY AV <= 5 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 10 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 15 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]DAILY AV report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Copper, total [as Cu]DAILY AV <= .043 mg/L all year
001Copper, total [as Cu]DAILY MX <= .091 mg/L all year
001Silver, total [as Ag]DAILY AV <= .007 mg/L all year
001Silver, total [as Ag]DAILY MX <= .015 mg/L all year
001Zinc, total [as Zn]DAILY AV <= .24 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .509 mg/L all year
001Flow, in conduit or thru treatment plantDAILY AV <= .03 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= .1 MGD all year
001Chlorine, total residualMO MIN >= 1 mg/L all year
001Chlorine, total residualMO MAX <= 4 mg/L all year
001EnterococciDAILY AV <= 35 CFU/100mL all year
001EnterococciDAILY MX <= 104 CFU/100mL 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