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Higginson, City of

Sewage treatment plant, Higginson, Arkansas. NPDES permit AR0044822, in force until Apr 30, 2027. Last 12 months: over a limit 11 times (last June 2026), 19 required values missing, 6 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (19 values)
Renewal application due
Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 6 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Chlorine, total residual, instantaneous maximum.1 mg/L≤ .011 mg/L809%
November 2025Chlorine, total residual, instantaneous maximum.05 mg/L≤ .011 mg/L355%
November 2025Chlorine, total residual, instantaneous maximum.05 mg/L≤ .011 mg/L355%
December 2025Chlorine, total residual, instantaneous maximum.08 mg/L≤ .011 mg/L627%
December 2025pH, minimum5.83 SU≥ 6 SU—
January 2026Chlorine, total residual, instantaneous maximum.05 mg/L≤ .011 mg/L355%
February 2026Chlorine, total residual, instantaneous maximum.14 mg/L≤ .011 mg/L1173%
April 2026pH, minimum4.84 SU≥ 6 SU—
May 2026pH, minimum5.69 SU≥ 6 SU—
June 2026Chlorine, total residual, instantaneous maximum.05 mg/L≤ .011 mg/L355%
June 2026pH, minimum5.49 SU≥ 6 SU—

Limits in force (25)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/Lall year
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≤ 23.9 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 4 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≤ 6 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≤ 4.8 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 14.4 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 6.7 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
Chlorine, total residualinstantaneous maximum≤ .011 mg/Lall 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
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 23.9 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/AR0044822 · MCP: https://passage-data.com/mcp