SAN MIGUEL ELECTRIC COOPERATIVE INC

NPDES permit TX0090611 · Minor NON-POTW · effective, expires 2028-11-02 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 25 forms filed late

Last period with anything received: 2026-07-31.

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 (23)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Carbon, tot organic [TOC]DAILY MX <= 55 mg/L all year
001Sulfate, total [as SO4]DAILY MX <= 1892896 lb/yr all year
001Zinc, total [as Zn]DAILY MX <= .969 mg/L all year
001Selenium, total [as Se]DAILY MX <= .0356 mg/L all year
001Radium 226, totalDAILY MX <= 30 pCi/L all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002Temperature, water deg. fahrenheitDAILY AV report only all year
002Temperature, water deg. fahrenheitDAILY MX report only all year
002Sulfate, total [as SO4]DAILY AV report only all year
002Sulfate, total [as SO4]DAILY MX report only all year
002Chromium, total [as Cr]DAILY AV <= .2 mg/L all year
002Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
002Zinc, total [as Zn]DAILY AV <= 1 mg/L all year
002Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV <= .36 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= .72 MGD all year
002Chlorine, free availableDAILY AV <= .2 mg/L all year
002Chlorine, free availableDAILY MX <= .5 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