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Mountain View, City of - Mountain View WWTP

Sewage treatment plant, Mountain View, Arkansas. NPDES permit AR0020117, in force until Jan 31, 2029. Last 12 months: over a limit once (last May 2026), 2 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (20 values), form B monthly (20 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 40 required values missing, 8 of 24 reports late

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

Period endingParameterReportedLimitOver by
May 2026Coliform, fecal general, 7-day geometric mean768 #/100mL≤ 400 #/100mL92%

Limits in force (48)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/LJan, Feb, Mar, Apr, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/LMay–Oct
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/LJan, Feb, Mar, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/LMay–Oct
pHminimum≥ 6 SUall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspended7-day average≤ 23 mg/Lall year
Solids, total suspended7-day average≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 91 lb/dall year
Solids, total suspendedmonthly average≤ 118.8 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 8 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]7-day average≤ 3.9 mg/LApr–Oct
Nitrogen, ammonia total [as N]7-day average≤ 10.3 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]7-day average≤ 3.9 mg/LApr–Oct
Nitrogen, ammonia total [as N]7-day average≤ 10.3 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 23.7 lb/dApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 60.9 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 30.9 lb/dApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 63.4 lb/dJan, Feb, Mar, Nov, Dec
Nitrite + Nitrate total [as N]instantaneous maximum≤ 10 mg/Lall year
Nitrite + Nitrate total [as N]instantaneous maximum≤ 10 mg/Lall year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year
Overflowsmonthly totalreport only (occur/mo)all year
Overflowsmonthly totalreport only (occur/mo)all year
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (gal)all year
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (gal)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 60.9 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 79.2 lb/dall year

How strict are these limits?

Cited limits by parameter: Arkansas'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/AR0020117 · MCP: https://passage-data.com/mcp