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Casa Blanca WWTP

Sewage treatment plant, Casa Blanca, New Mexico. NPDES permit NM0030678, in force until Nov 30, 2026. Last 12 months: over a limit 3 times (last June 2026), 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (36 values), form Q quarterly (2 values)
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 4 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
December 2025Solids, total dissolved, daily maximum1500 mg/L≤ 250 mg/L500%
March 2026Solids, total dissolved, daily maximum1900 mg/L≤ 250 mg/L660%
June 2026Solids, total dissolved, daily maximum1600 mg/L≤ 250 mg/L540%

Limits in force (38)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 47.5 lb/dall year
BOD, 5-day, 20 deg. C30-day average≤ 47.5 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 71.3 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 71.3 lb/dall year
pHminimum≥ 6.6 SUall year
pHminimum≥ 6.6 SUall year
pHmaximum≤ 8.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 47.5 lb/dall year
Solids, total suspended30-day average≤ 47.5 lb/dall year
Solids, total suspended7-day average≤ 71.3 lb/dall year
Solids, total suspended7-day average≤ 71.3 lb/dall year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plant7-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plant7-day averagereport only (MGD)all year
Chlorine, total residualinstantaneous maximum≤ 11 ug/Lall year
Chlorine, total residualinstantaneous maximum≤ 11 ug/Lall year
E. coli30-day geometric mean≤ 47 CFU/100mLall year
E. coli30-day geometric mean≤ 47 CFU/100mLall year
E. colidaily maximum≤ 88 CFU/100mLall year
E. colidaily maximum≤ 88 CFU/100mLall year
Enterococci30-day geometric mean≤ 30 CFU/100mLall year
Enterococci30-day geometric mean≤ 30 CFU/100mLall year
Solids, total dissolveddaily maximum≤ 250 mg/Lall year
Solids, total dissolveddaily maximum≤ 792.3 lb/dall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

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/NM0030678 · MCP: https://passage-data.com/mcp