SOCORRO, CITY OF

NPDES permit NM0028835 · Major POTW · administratively continued, expires 2026-07-31 · 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 2026-07-31 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

0values over a limit
0required values missing, on 0 form(s)
0of 15 forms filed late

Last period with anything received: 2026-08-31.

Reporting

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

Limits in force (47)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 325 lb/d all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 488 lb/d all year
001pHMINIMUM >= 6.6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 325 lb/d all year
001Solids, total suspended7 DA AVG <= 488 lb/d all year
001Copper, dissolved [as Cu]DAILY MX <= 18.788 ug/L all year
001Aluminum, total recoverableDAILY MX <= 87 ug/L all year
001Aluminum, total recoverableDAILY MX <= .943 lb/d all year
001Aluminum, dissolved [as Al]DAILY MX report only all year
001Aluminum, dissolved [as Al]7 DA AVG report only all year
001Flow, in conduit or thru treatment plant30DA AVG report only all year
001Flow, in conduit or thru treatment plant7 DA AVG report only all year
001Chlorine, total residualINST MAX <= 19 ug/L all year
001E. coliDAILY MX <= 126 CFU/100mL all year
001E. coli7I <= 6210 MCFU/d all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
TX1Whole effluent toxicity - retest #1VALUE report only all year
TX1Whole effluent toxicity - retest #1VALUE report only all year
TX1Whole effluent toxicity - retest #2VALUE report only all year
TX1Whole effluent toxicity - retest #2VALUE report only all year
TX1WET, sublethal retest #1VALUE report only all year
TX1WET, sublethal retest #1VALUE report only all year
TX1WET, sublethal retest #2VALUE report only all year
TX1Whole Effluent Toxicity - Retest #3VALUE report only all year
TX1Whole Effluent Toxicity - Retest #3VALUE report only all year
TX1Whole Effluent Toxicity, Sub-Lethal Retest #3VALUE report only all year
TX1Whole Effluent Toxicity, Sub-Lethal Retest #3VALUE report only all year
TX1Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasVALUE 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