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Jefferson County Public Schools R-1

Sewerage Systems, Jefferson County, Colorado. NPDES permit CO0047988 expired May 31, 2014; its limits still apply. Last 12 months: over a limit 4 times (last February 2026), 2 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (26 values), outfall 300 form I monthly (8 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 25 reports late

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

Period endingParameterReportedLimitOver by
January 2026Nitrogen, ammonia total [as N], 30-day average25.9 mg/L≤ 6.1 mg/L325%
January 2026Nitrogen, ammonia total [as N], daily maximum25.9 mg/L≤ 18 mg/L44%
January 2026Nitrogen, ammonia total [as N], rolling average12.9 mg/L≤ 3.4 mg/L279%
February 2026Nitrogen, ammonia total [as N], rolling average5.6 mg/L≤ 4.2 mg/L33%

Limits in force (92)

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≤ 30 mg/Lall year001
Solids, total suspendedmaximum 7-day average≤ 45 mg/Lall year001
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]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 averagereport only (mg/L)May001
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)Jun001
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 average≤ 5.7 mg/LOct001
Nitrogen, ammonia total [as N]30-day average≤ 6.1 mg/LNov001
Nitrogen, ammonia total [as N]30-day average≤ 6 mg/LDec001
Nitrogen, ammonia total [as N]30-day average≤ 6.1 mg/LJan001
Nitrogen, ammonia total [as N]30-day average≤ 6.1 mg/LFeb001
Nitrogen, ammonia total [as N]30-day average≤ 5.9 mg/LMar001
Nitrogen, ammonia total [as N]30-day average≤ 5.9 mg/LApr001
Nitrogen, ammonia total [as N]30-day average≤ 6.2 mg/LMay001
Nitrogen, ammonia total [as N]30-day average≤ 5.7 mg/LJun001
Nitrogen, ammonia total [as N]30-day average≤ 5.2 mg/LJul001
Nitrogen, ammonia total [as N]30-day average≤ 5.4 mg/LAug001
Nitrogen, ammonia total [as N]30-day average≤ 5.3 mg/LSep001
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, 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 maximumreport only (mg/L)May001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jun001
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 maximum≤ 17 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 18 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 18 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 19 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LSep001
Nitrogen, ammonia total [as N]rolling average≤ 3.4 mg/LNov001
Nitrogen, ammonia total [as N]rolling average≤ 3.4 mg/LDec001
Nitrogen, ammonia total [as N]rolling average≤ 3.4 mg/LJan001
Nitrogen, ammonia total [as N]rolling average≤ 4.2 mg/LFeb001
Nitrogen, ammonia total [as N]rolling average≤ 4.2 mg/LMar001
Nitrogen, ammonia total [as N]rolling average≤ 1.7 mL/LMay001
Nitrogen, ammonia total [as N]rolling average≤ 1.7 mg/LJun001
Nitrogen, ammonia total [as N]rolling average≤ 1.7 mg/LJul001
Nitrogen, ammonia total [as N]rolling average≤ 1.7 mg/LAug001
Nitrogen, ammonia total [as N]rolling average≤ 1.7 mg/LSep001
Nitrogen, ammonia total [as N]rolling average≤ 4.2 mg/LOct001
Phosphorus, total [as P]30-day average≤ 1 mg/Lall year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]30-day averagereport only (lb/d)all year001
Phosphorus, total [as P]30-day average≤ 110 lb/dDec001
Oil and greaseinstantaneous maximum≤ 10 mg/Lall year001
E. coli, thermotol, MF, MTEC30-day geometric mean≤ 126 #/100mLall year001
E. coli, thermotol, MF, MTECmaximum 7-day geometric mean≤ 252 #/100mLall year001
E. coli, thermotol, MF, MTECrolling average≤ 19 #/100mLall year001
Flow, in conduit or thru treatment plant30-day average≤ .052 MGDall year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residual30-day averagereport only (mg/L)all year001
Chlorine, total residual30-day average≤ .011 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ .5 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ .019 mg/Lall year001
Chlorine, total residualrolling averagereport only (mg/L)all year001
Chlorine, total residualrolling average≤ .0017 mg/Lall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimumreport only (%)all year001
Oil and grease visualinstantaneous maximumreport only (N=0;Y=1)all year001
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year300
BOD, 5-day, 20 deg. Cmaximum daily 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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Your permit document is the final word. As JSON: /api/v1/permits/CO0047988 · MCP: https://passage-data.com/mcp