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Marvell, City of

Sewage treatment plant, Marvell, Arkansas. NPDES permit AR0035840 expired Feb 28, 2026; its limits still apply. Last 12 months: no values over a limit, 67 required values missing, 7 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (19 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 121 required values missing, 11 of 12 reports late

Limits in force (25)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/LMay–Oct
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 55.1 lb/dJan, Feb, Mar, Apr, Nov, Dec
pHminimum≥ 6 SUall year
pHmaximum≤ 10 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspended7-day average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 165.1 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LMay–Oct
Nitrogen, ammonia total [as N]7-day average≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.3 lb/dMay–Oct
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≤ .05 mg/Lall 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 average≤ 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/LMay–Oct
BOD, carbonaceous [5 day, 20 C]7-day average≤ 38 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 45.9 lb/dMay–Oct

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/AR0035840 · MCP: https://passage-data.com/mcp