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Ola, City of - Ola Wastewater Treatment Facility

Sewage treatment plant, Ola, Arkansas. NPDES permit AR0035688 expired Oct 31, 2026. Last 12 months: over a limit 12 times (last June 2026), 8 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form B monthly (18 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 9 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average22.65 mg/L≤ 20 mg/L13%
October 2025Solids, total suspended, monthly average45.8 lb/d≤ 30 lb/d53%
November 2025Coliform, fecal general, 7-day geometric mean2400 #/100mL≤ 2000 #/100mL20%
November 2025Coliform, fecal general, monthly geometric mean1359 #/100mL≤ 1000 #/100mL36%
November 2025Solids, total suspended, 7-day average33.1 mg/L≤ 30 mg/L10%
November 2025Solids, total suspended, monthly average25.05 mg/L≤ 20 mg/L25%
November 2025Solids, total suspended, monthly average36.15 lb/d≤ 30 lb/d21%
December 2025Solids, total suspended, monthly average30.3 lb/d≤ 30 lb/d1%
February 2026Solids, total suspended, monthly average43.4 lb/d≤ 30 lb/d45%
March 2026Solids, total suspended, monthly average47.5 lb/d≤ 30 lb/d58%
May 2026Solids, total suspended, monthly average35.34 lb/d≤ 30 lb/d18%
June 2026Solids, total suspended, monthly average41 lb/d≤ 30 lb/d37%

Limits in force (28)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/LMay–Oct
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspended7-day average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 30 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 4.7 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.6 mg/LApr
Nitrogen, ammonia total [as N]7-day average≤ 7.1 mg/LMay–Oct
Nitrogen, ammonia total [as N]7-day average≤ 16.7 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]7-day average≤ 5.6 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 7.1 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 18 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 8.4 lb/dApr
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Coliform, fecal generalmonthly geometric mean≤ 1000 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLall year
Overflowsmonthly totalreport only (occur/mo)all year
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (gal)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]7-day average≤ 23 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]7-day average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 22.5 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 30 lb/dJan, Feb, Mar, Apr, Nov, Dec

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/AR0035688 · MCP: https://passage-data.com/mcp