Passage Data · Check a report · Use it from your AI

Cokeville, Town of

Sewage treatment plant, Cokeville, Wyoming. NPDES permit WY0021032, in force until Dec 31, 2030. Last 12 months: over a limit 3 times (last February 2026), 11 required values missing, 8 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form MQ quarterly, outfall 001 form QQ quarterly, outfall DMP1 form QQ quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
13 values over a limit, 24 required values missing, 15 of 16 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, suspended percent removal, monthly average minimum76 %≥ 85 %60%
January 2026Solids, suspended percent removal, monthly average minimum36 %≥ 85 %327%
February 2026Solids, suspended percent removal, monthly average minimum41 %≥ 85 %293%

Limits in force (63)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall 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. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all 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. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly averagereport 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 suspendedweekly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]30-day average≤ 127.32 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]30-day average≤ 127.32 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 32.13 mg/LMay–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 32.13 mg/LMay–Sep001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 263.15 mg/LMay–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 263.15 mg/LMay–Sep001
Durationmonthly totalreport only (d/mo)all year001
Durationmonthly totalreport only (d/mo)all year001
Chlorine, total residualmonthly average≤ .318 mg/LMay–Sep001
Chlorine, total residualmonthly average≤ .318 mg/LMay–Sep001
Chlorine, total residualmonthly average≤ 1.127 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Chlorine, total residualmonthly average≤ 1.127 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Chlorine, total residualdaily maximum≤ 1.156 mg/LMay–Sep001
Chlorine, total residualdaily maximum≤ 1.156 mg/LMay–Sep001
Chlorine, total residualdaily maximum≤ 6.527 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Chlorine, total residualdaily maximum≤ 6.527 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
E. colimonthly geometric mean≤ 3089 MPN/100mLMay–Sep001
E. colimonthly geometric mean≤ 62515 MPN/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
E. colidaily maximum≤ 33853 MPN/100mLMay–Sep001
E. colidaily maximumreport only (MPN/100mL)Jan, Feb, Mar, Apr, Oct, Nov, Dec001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Flowmonthly average≤ .12 MGDall year001
Flowmonthly average≤ .12 MGDall year001
Flowdaily maximumreport only (MGD)all year001
Flowdaily maximumreport only (MGD)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year001
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year001
Solids, suspended percent removalmonthly average minimum≥ 65 %all year001
Solids, suspended percent removalmonthly average minimum≥ 65 %all year001
Temperature, water deg. centigradedaily averagereport only (deg C)all yearDMP1
pHinstantaneous maximumreport only (SU)all yearDMP1
pHinstantaneous minimumreport only (SU)all yearDMP1

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WY0021032 · MCP: https://passage-data.com/mcp