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Cokedale Town of

Sewage treatment plant, Las Animas County, Colorado. NPDES permit CO0048461 expired Aug 31, 2020; its limits still apply. Last 12 months: over a limit 4 times (last April 2026), 26 required values missing, 10 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (16 values), outfall 300 form I monthly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 26 required values missing, 12 of 24 reports late

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

Period endingParameterReportedLimitOver by
February 2026BOD, 5-day, 20 deg. C, 30-day average35 mg/L≤ 30 mg/L17%
February 2026BOD, 5-day, percent removal, monthly average minimum80 %≥ 85 %33%
April 2026BOD, 5-day, 20 deg. C, 30-day average38 mg/L≤ 30 mg/L27%
April 2026Solids, total suspended, 30-day average88 mg/L≤ 75 mg/L17%

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum 7-day average≤ 45 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspended30-day average≤ 75 mg/Lall year001
Solids, total suspendedmaximum 7-day average≤ 110 mg/Lall year001
Nitrogen, ammonia total [as N]30-day average≤ 65 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 65 mg/Lall year001
Oil and greaseinstantaneous maximum≤ 10 mg/Lall year001
Flow, in conduit or thru treatment plant30-day average≤ .0185 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualinstantaneous maximum≤ .5 mg/Lall year001
E. coli30-day geometric mean≤ 126 #/100mLall year001
E. colimaximum 7-day geometric mean≤ 252 #/100mLall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Oil and grease visualinstantaneous maximumreport only (abst=0;prst=1)all year001
Plant capacity fact. percent of capacity30-day averagereport only (%)all year300
Plant capacity fact. percent of capacity30-day averagereport only (%)all year300
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year300
BOD, 5-day, 20 deg. Cmaximum 7-day averagereport only (mg/L)all year300
BOD, 5-day, 20 deg. C30-day averagereport only (lb/d)all year300
BOD, 5-day, 20 deg. Cmaximum 7-day averagereport only (lb/d)all year300
Solids, total suspended30-day averagereport only (mg/L)all year300
Solids, total suspendedmaximum 7-day averagereport only (mg/L)all year300
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year300
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year300

How strict are these limits?

Cited limits by parameter: Colorado'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/CO0048461 · MCP: https://passage-data.com/mcp