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Gilmore, City of

Sewage treatment plant, Gilmore, Arkansas. NPDES permit AR0045021 expired Apr 30, 2024; its limits still apply. Last 12 months: no values over a limit, 44 required values missing, 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (22 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 176 required values missing, 10 of 12 reports late

Limits in force (24)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspended7-day average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 75 lb/dall year
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Grease7-day average≤ 15 mg/Lall year
Oil & Greasemonthly average≤ 8.3 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/Lall year
Nitrogen, ammonia total [as N]7-day average≤ 13.5 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 7.5 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≤ 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
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≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 37.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20.9 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/AR0045021 · MCP: https://passage-data.com/mcp