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Las Cruces, City of - East Mesa Water Reclamation Facility

Sewage treatment plant, Las Cruces, New Mexico. NPDES permit NM0030872, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 61 days after each period: outfall 001 form A monthly (19 values), outfall TX1 form Q quarterly (22 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (41)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. C30-day average≤ 250.3 lb/dall year001
BOD, 5-day, 20 deg. C7-day average≤ 375.3 lb/dall year001
pHminimum≥ 6.6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspended30-day average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspended30-day average≤ 250.3 lb/dall year001
Solids, total suspended7-day average≤ 375.3 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year001
Flow, in conduit or thru treatment plant7-day averagereport only (MGD)all year001
Chlorine, total residualinstantaneous maximum≤ 11 ug/Lall year001
E. coli30-day geometric mean≤ 126 CFU/100mLall year001
E. colidaily maximum≤ 410 CFU/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Whole effluent toxicity - retest #1valuereport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #2valuereport only (pass=0;fail=1)all yearTX1
WET, sublethal retest #1valuereport only (pass=0;fail=1)all yearTX1
WET, sublethal retest #2valuereport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity - Retest #3valuereport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity, Sub-Lethal Retest #3valuereport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity [WET] - C. dubiavalue≤ 100 %all yearTX1
Whole Effluent Toxicity [WET] - P. promelasvalue≤ 100 %all yearTX1
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiavaluereport only (pass=0;fail=1)all yearTX1
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasvaluereport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiavaluereport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasvaluereport only (pass=0;fail=1)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiavaluereport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasvaluereport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiavaluereport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasvaluereport only (%)all yearTX1
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiavaluereport only (%)all yearTX1
Coef Of Var Static Renewal 7Day Chronic Pimephales promelasvaluereport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiavaluereport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasvaluereport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiavaluereport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasvaluereport only (%)all yearTX1

How strict are these limits?

Cited limits by parameter: New Mexico's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NM0030872 · MCP: https://passage-data.com/mcp