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Flippin, City of - Flippin Wastewater Treatment Facility

Sewage treatment plant, Flippin, Arkansas. NPDES permit AR0021717, in force until Oct 31, 2027. Last 12 months: over a limit 11 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (18 values), form A1 monthly (18 values)
Renewal application due
May 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
9 values over a limit, 18 required values missing, 1 of 24 reports late

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

Period endingParameterReportedLimitOver by
April 2026Nitrogen, ammonia total [as N], 7-day average11.3 mg/L≤ 3.9 mg/L190%
April 2026Nitrogen, ammonia total [as N], monthly average11.3 mg/L≤ 3.9 mg/L190%
May 2026Nitrogen, ammonia total [as N], 7-day average11.5 mg/L≤ 3 mg/L283%
May 2026Nitrogen, ammonia total [as N], monthly average11.5 mg/L≤ 2 mg/L475%
May 2026Nitrogen, ammonia total [as N], monthly average15.04 lb/d≤ 5.8 lb/d159%
July 2026Nitrogen, ammonia total [as N], 7-day average3.1 mg/L≤ 3 mg/L3%
July 2026Nitrogen, ammonia total [as N], monthly average3.1 mg/L≤ 2 mg/L55%
July 2026Nitrogen, ammonia total [as N], monthly average7.07 lb/d≤ 5.8 lb/d22%
August 2026Solids, total suspended, 7-day average43 mg/L≤ 22.5 mg/L91%
August 2026Solids, total suspended, monthly average43 mg/L≤ 15 mg/L187%
August 2026Solids, total suspended, monthly average58.49 lb/d≤ 43.8 lb/d34%

Limits in force (52)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
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≤ 22.5 mg/Lall year
Solids, total suspended7-day average≤ 22.5 mg/Lall year
Solids, total suspendedmonthly average≤ 21.9 lb/dall year
Solids, total suspendedmonthly average≤ 43.8 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LApr
Nitrogen, ammonia total [as N]7-day average≤ 3 mg/LMay–Oct
Nitrogen, ammonia total [as N]7-day average≤ 10.5 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]7-day average≤ 4 mg/LApr
Nitrogen, ammonia total [as N]7-day average≤ 3 mg/LMay–Oct
Nitrogen, ammonia total [as N]7-day average≤ 10.4 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]7-day average≤ 3.9 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 2.9 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 13.1 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.8 lb/dApr
Nitrogen, ammonia total [as N]monthly average≤ 5.8 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 26.3 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 11.4 lb/dApr
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 general30-day geometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Sep
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Sep
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
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≤ 14.6 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 29.2 lb/dall year

How strict are these limits?

Cited limits by parameter: Arkansas'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/AR0021717 · MCP: https://passage-data.com/mcp