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Ax MHC Snake River LLC

Industrial or other facility, (Unknown City), Wyoming. NPDES permit WY0095320, in force until Mar 31, 2029. Last 12 months: over a limit 2 times (last December 2025), 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form MQ quarterly (44 values), form WS twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 3 of 14 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, suspended percent removal, monthly average minimum55.8 %≥ 85 %195%
December 2025Solids, total suspended, monthly average34.5 mg/L≤ 30 mg/L15%

Limits in force (54)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)May–Oct
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)May–Oct
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)May–Oct
Durationmonthly totalreport only (d)all year
Durationmonthly totalreport only (d)all year
Chlorine, total residualdaily maximum≤ 2 mg/Lall year
Chlorine, total residualdaily maximum≤ 2 mg/Lall year
E. colimonthly geometric mean≤ 2342397 #/100mLMay–Sep
E. colimonthly geometric mean≤ 2342397 #/100mLMay–Sep
E. colimonthly geometric mean≤ 7090111 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
E. colimonthly geometric mean≤ 7090111 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
E. colidaily maximum≤ 4751069 #/100mLMay–Sep
E. colidaily maximum≤ 4751069 #/100mLMay–Sep
E. colidaily maximum≤ 7090111 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
E. colidaily maximum≤ 7090111 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Flowdaily maximum≤ .01 MGDall year
Flowdaily maximum≤ .01 MGDall year
Flowmonthly averagereport only (MGD)all year
Flowmonthly averagereport only (MGD)all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Wyoming'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/WY0095320 · MCP: https://passage-data.com/mcp