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GCC Rio Grande, Inc.

Cement, Hydraulic, Tijeras, New Mexico. NPDES permit NM0000116 expired May 31, 2026; its limits still apply. Last 12 months: no values over a limit, 2 of 10 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 89 days after each period: outfall 001 form A quarterly (30 values), outfall TX1 form Y every 60 months
Last report on file
June 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (50)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspended30-day averagereport only (mg/L)all year001
Solids, total suspended30-day averagereport only (mg/L)all year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Copper, dissolved [as Cu]30-day averagereport only (mg/L)all year001
Copper, dissolved [as Cu]30-day averagereport only (mg/L)all year001
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year001
Copper, dissolved [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]30-day average≤ .011 ug/Lall year001
Copper, total [as Cu]30-day average≤ .011 ug/Lall year001
Copper, total [as Cu]daily maximum≤ .011 ug/Lall year001
Copper, total [as Cu]daily maximum≤ .011 ug/Lall year001
Aluminum, total [as Al]30-day average≤ .75 ug/Lall year001
Aluminum, total [as Al]30-day average≤ .75 ug/Lall year001
Aluminum, total [as Al]daily maximum≤ .75 ug/Lall year001
Aluminum, total [as Al]daily maximum≤ .75 ug/Lall year001
Aluminum, total [as Al]30-day average≤ .78 lb/dall year001
Aluminum, total [as Al]30-day average≤ .78 lb/dall year001
Aluminum, total [as Al]daily maximum≤ .78 lb/dall year001
Aluminum, total [as Al]daily maximum≤ .78 lb/dall year001
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year001
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)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
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.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NM0000116 · MCP: https://passage-data.com/mcp