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Saline Co. Property Owners' Improvement District #37 Riverside Hills Subdivision

Sewage treatment plant, Owensville, Arkansas. NPDES permit AR0049328, in force until Feb 29, 2028. Last 12 months: over a limit 16 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (18 values)
Renewal application due
Sep 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 3 of 12 reports late

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

All 16 values over a limit
Period endingParameterReportedLimitOver by
January 2026Oxygen, dissolved [DO], instantaneous minimum5.87 mg/L≥ 6 mg/L2%
February 2026Oxygen, dissolved [DO], instantaneous minimum5.5 mg/L≥ 6 mg/L8%
March 2026Oxygen, dissolved [DO], instantaneous minimum5.83 mg/L≥ 6 mg/L3%
April 2026Oxygen, dissolved [DO], instantaneous minimum4.17 mg/L≥ 6 mg/L31%
April 2026Solids, total suspended, 7-day average47 mg/L≤ 22.5 mg/L109%
April 2026Solids, total suspended, monthly average47 mg/L≤ 15 mg/L213%
May 2026BOD, carbonaceous [5 day, 20 C], 7-day average21 mg/L≤ 15 mg/L40%
May 2026BOD, carbonaceous [5 day, 20 C], monthly average21 mg/L≤ 10 mg/L110%
May 2026Coliform, fecal general, 30-day geometric mean> 2400 #/100mL≤ 200 #/100mL—
May 2026Coliform, fecal general, 7-day geometric mean> 2400 #/100mL≤ 200 #/100mL—
May 2026Oxygen, dissolved [DO], instantaneous minimum2.8 mg/L≥ 6 mg/L53%
May 2026Solids, total suspended, 7-day average98 mg/L≤ 22.5 mg/L336%
May 2026Solids, total suspended, monthly average98 mg/L≤ 15 mg/L553%
June 2026Oxygen, dissolved [DO], instantaneous minimum2.33 mg/L≥ 6 mg/L61%
June 2026Solids, total suspended, 7-day average24 mg/L≤ 22.5 mg/L7%
June 2026Solids, total suspended, monthly average24 mg/L≤ 15 mg/L60%

Limits in force (25)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspended7-day average≤ 22.5 mg/Lall year
Solids, total suspendedmonthly average≤ 4.4 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.2 mg/LApr
Nitrogen, ammonia total [as N]7-day average≤ 7.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]7-day average≤ 14.7 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]7-day average≤ 5.2 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 1.5 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 2.9 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.5 lb/dApr
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)Apr
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 general30-day geometric mean≤ 200 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 200 #/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≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 2.9 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/AR0049328 · MCP: https://passage-data.com/mcp