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La Jara Town of

Sewage treatment plant, La Jara, Colorado. NPDES permit CO0020150 expired Nov 30, 2024; its limits still apply. Last 12 months: over a limit 18 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form AA monthly (18 values), outfall 001 form AQ quarterly (1 value), outfall 002 form AA monthly (9 values), outfall 002 form AQ quarterly (1 value), outfall 003 form AA monthly (5 values), outfall 003 form AQ quarterly (1 value), and 2 more forms
Last report on file
July 2026
Oct 2024 – Sep 2025
23 values over a limit, 163 required values missing, 24 of 76 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
October 2025pH, maximum9.05 SU≤ 9 SU—
January 2026BOD, 5-day, percent removal, minimum84.7 %≥ 85 %2%
January 2026pH, maximum9.09 SU≤ 9 SU—
February 2026BOD, 5-day, 20 deg. C, 30-day average56 mg/L≤ 30 mg/L87%
February 2026BOD, 5-day, 20 deg. C, maximum 7-day average56 mg/L≤ 45 mg/L24%
February 2026BOD, 5-day, percent removal, minimum32.5 %≥ 85 %350%
February 2026pH, maximum9.33 SU≤ 9 SU—
March 2026BOD, 5-day, 20 deg. C, 30-day average55 mg/L≤ 30 mg/L83%
March 2026BOD, 5-day, 20 deg. C, maximum 7-day average55 mg/L≤ 45 mg/L22%
March 2026BOD, 5-day, percent removal, minimum59.6 %≥ 85 %169%
April 2026BOD, 5-day, 20 deg. C, 30-day average37 mg/L≤ 30 mg/L23%
April 2026BOD, 5-day, percent removal, minimum65.1 %≥ 85 %133%
April 2026pH, maximum9.12 SU≤ 9 SU—
May 2026BOD, 5-day, percent removal, minimum66.7 %≥ 85 %122%
May 2026pH, maximum9.17 SU≤ 9 SU—
June 2026BOD, 5-day, percent removal, minimum76.7 %≥ 85 %55%
June 2026pH, maximum9.73 SU≤ 9 SU—
July 2026pH, maximum9.43 SU≤ 9 SU—

Limits in force (75)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrade30-day averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all year001
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 SUall year001
pHmaximum≤ 9 SUall year001
Alkalinity, total [as CaCO3]30-day averagereport only (mg/L)all 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 averagereport only (mg/L)Jan001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Feb001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Mar001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Apr001
Nitrogen, ammonia total [as N]30-day average≤ 65 mg/LMay001
Nitrogen, ammonia total [as N]30-day average≤ 65 mg/LJun001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Jul001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Aug001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Sep001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Oct001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Nov001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Feb001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Apr001
Nitrogen, ammonia total [as N]daily maximum≤ 65 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 65 mg/LJun001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jul001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Aug001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Sep001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Nov001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Dec001
Nitrogen, inorganic totaldaily maximum≤ 23 mg/Lall year001
Flow, in conduit or thru treatment plant30-day average≤ .17 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
E. coli30-day average≤ 2000 #/100mLall year001
E. colimaximum 7-day average≤ 4000 #/100mLall year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Oil and grease visualdaily maximumreport only (pass=0;fail=1)all year001
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all year002
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmaximum 7-day averagereport only (mg/L)all year002
pHdaily maximumreport only (SU)all year002
Alkalinity, total [as CaCO3]30-day averagereport only (mg/L)all year002
Solids, total suspended30-day averagereport only (mg/L)all year002
Solids, total suspendedmaximum 7-day averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, inorganic totaldaily maximumreport only (mg/L)all year002
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all year003
pHdaily maximumreport only (SU)all year003
Alkalinity, total [as CaCO3]30-day averagereport only (mg/L)all year003
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year003
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year003
Nitrogen, inorganic totaldaily maximumreport only (mg/L)all year003
Temperature, water deg. centigrade30-day averagereport only (deg C)all year300
Temperature, water deg. centigradedaily maximumreport only (deg C)all year300
Plant capacity fact. percent of capacity30-day averagereport only (%)all year300
Plant capacity fact. percent of capacity30-day averagereport only (%)all year300
Oxygen, dissolved [DO]daily maximumreport only (mg/L)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
pHdaily maximumreport only (SU)all year300
Alkalinity, total [as CaCO3]30-day averagereport only (mg/L)all year300
Solids, total suspended30-day averagereport only (mg/L)all year300
Solids, total suspendedmaximum 7-day averagereport only (mg/L)all year300
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year300
Nitrogen, ammonia total [as N]daily maximumreport 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
Nitrogen, Kjeldahl, total [TKN] [water]30-day averagereport only (mg/L)all year300

How strict are these limits?

Cited limits by parameter: Colorado'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/CO0020150 · MCP: https://passage-data.com/mcp