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Laramie, City of

Sewerage Systems, major discharger, (Unknown City), Wyoming. NPDES permit WY0022209, in force until Jan 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form DQ quarterly (1 value), outfall 001 form QN quarterly (5 values), outfall 001 form QQ quarterly (2 values), outfall 001 form SM quarterly (5 values), outfall 001 form WM quarterly (19 values), outfall DMP1 form MM quarterly (4 values), and 1 more form
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 68 reports late

Limits in force (64)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 4.58 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 16.49 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 9.93 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 19.28 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 17.98 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 14.48 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 6.63 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 28.63 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 26.74 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 6.07 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 3.46 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 20.3 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 26.66 mg/LAug001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Apr001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Nov001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jun001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)May001
Nitrogen, ammonia total [as N]daily maximum≤ 31.47 mg/LOct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Feb001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jul001
Nitrogen, ammonia total [as N]daily maximum≤ 21.6 mg/LSep001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphate, ortho [as P]daily maximumreport only (mg/L)all year001
Durationmonthly totalreport only (d)all year001
Chlorine, total residualdaily maximum≤ .011 mg/Lall year001
E. colimonthly average≤ 126 CFU/100mLMay–Sep001
E. colimonthly average≤ 630 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
E. colidaily maximum≤ 576 CFU/100mLMay–Sep001
E. colidaily maximum≤ 630 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Flowmonthly average≤ 6 MGDall year001
Flowdaily maximumreport only (MGD)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year001
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7-day maximum≤ 0 pass=0;fail=1all year001
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day maximum≤ 0 pass=0;fail=1all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearDMP1
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearDMP1
pHinstantaneous minimumreport only (SU)all yearDMP1
pHinstantaneous maximumreport only (SU)all yearDMP1
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearUML1
Temperature, water deg. centigrademonthly averagereport only (deg C)all yearUML1
pHinstantaneous minimumreport only (SU)all yearUML1
pHinstantaneous maximumreport only (SU)all yearUML1

How strict are these limits?

Cited limits by parameter: Wyoming'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/WY0022209 · MCP: https://passage-data.com/mcp