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Amity, City of

Sewage treatment plant, Amity, Arkansas. NPDES permit AR0051101 expired Oct 31, 2024; its limits still apply. Last 12 months: over a limit 14 times (last July 2026), 9 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (16 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
17 values over a limit, 96 required values missing, 10 of 12 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
October 2025pH, maximum9.23 SU≤ 9 SU—
December 2025BOD, 5-day, 20 deg. C, monthly average38.91 lb/d≤ 37.5 lb/d4%
December 2025Solids, total suspended, monthly average57.22 lb/d≤ 56.3 lb/d2%
January 2026BOD, 5-day, 20 deg. C, monthly average33.05 mg/L≤ 30 mg/L10%
January 2026BOD, 5-day, 20 deg. C, monthly average47 lb/d≤ 37.5 lb/d25%
January 2026pH, maximum9.54 SU≤ 9 SU—
February 2026BOD, 5-day, 20 deg. C, 7-day average48.6 mg/L≤ 45 mg/L8%
February 2026BOD, 5-day, 20 deg. C, monthly average35.83 mg/L≤ 30 mg/L19%
February 2026BOD, 5-day, 20 deg. C, monthly average42.03 lb/d≤ 37.5 lb/d12%
April 2026pH, maximum9.77 SU≤ 9 SU—
May 2026pH, maximum10.1 SU≤ 9 SU—
June 2026pH, maximum9.44 SU≤ 9 SU—
July 2026pH, maximum9.67 SU≤ 9 SU—
July 2026pH, minimum3.04 SU≥ 6 SU—

Limits in force (17)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6.5 mg/LMay–Oct
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 37.5 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 45 mg/Lall year
Solids, total suspended7-day average≤ 65 mg/Lall year
Solids, total suspendedmonthly average≤ 56.3 lb/dall 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
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year
Coliform, fecal general30-day 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

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/AR0051101 · MCP: https://passage-data.com/mcp