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Arkansas Department of Parks, Heritage & Tourism - Millwood State Park

Trailer Parks And Campsites, Ashdown, Arkansas. NPDES permit AR0037079, in force until Aug 31, 2027. Last 12 months: over a limit 5 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (20 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025Nitrogen, ammonia total [as N], monthly average13.7 mg/L≤ 12 mg/L14%
January 2026Nitrogen, ammonia total [as N], monthly average14.7 mg/L≤ 12 mg/L23%
March 2026Solids, total suspended, daily maximum51 mg/L≤ 22.5 mg/L127%
March 2026Solids, total suspended, monthly average29 mg/L≤ 15 mg/L93%
April 2026Nitrogen, ammonia total [as N], daily maximum7.8 mg/L≤ 6.1 mg/L28%

Limits in force (29)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/LJan, Feb, Mar, Apr, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LMay–Oct
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 22.5 mg/Lall year
Solids, total suspendedmonthly average≤ 2.5 lb/dall year
Solids, total suspendeddaily maximum≤ 3.8 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 6.1 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 9 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 6.1 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 1 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 2 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 1.5 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 1 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 maximumreport only (mg/L)all year
Coliform, fecal generalmonthly geometric mean≤ 1000 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.7 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 2.5 lb/dall year

How strict are these limits?

Cited limits by parameter: Arkansas's rules and the federal ones.

Same industry: the 55 Hotels, Rooming Houses, Camps and Other Lodging permits in Arkansas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AR0037079 · MCP: https://passage-data.com/mcp