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USDA Forest Service - Blanchard Springs Caverns

Federal facility (Trailer Parks And Campsites), Fiftysix, Arkansas. NPDES permit AR0020664, in force until May 31, 2029. Last 12 months: no values over a limit, 2 of 20 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (2 values), form Q quarterly (26 values), form F quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 22 reports late

Limits in force (42)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/Lall year
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≤ 5 lb/dall year
Solids, total suspendeddaily maximum≤ 7.5 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 15 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.7 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 3.3 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 2.5 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 5 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Nitrite + Nitrate total [as N]daily maximumreport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all 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 maximum< .1 mg/Lall year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLJul–Sep
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLOct–Dec
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLJan–Apr
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay, Jun
Coliform, fecal general7-day geometric mean≤ 200 #/100mLJul–Sep
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLOct–Dec
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLJan–Apr
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay, Jun
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≤ 3.3 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 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/AR0020664 · MCP: https://passage-data.com/mcp