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Arkansas Department of Transportation (ARDOT) - Gurdon Rest Area

Miscellaneous Personal Services, Gurdon, Arkansas. NPDES permit AR0044270, in force until Sep 30, 2027. Last 12 months: over a limit 16 times (last July 2026), 32 of 36 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (4 values), outfall 001 form Q quarterly (7 values), outfall 002 form A monthly (4 values), outfall 002 form Q quarterly (7 values), outfall 001 form F quarterly, outfall 002 form F quarterly
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 26 of 40 reports late

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

All 16 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025001Oxygen, dissolved [DO], instantaneous minimum1.8 mg/L≥ 2 mg/L10%
October 2025002Nitrogen, ammonia total [as N], daily maximum19.11 mg/L≤ 10.5 mg/L82%
October 2025002Nitrogen, ammonia total [as N], monthly average19.11 mg/L≤ 7 mg/L173%
October 2025002Oxygen, dissolved [DO], instantaneous minimum1.8 mg/L≥ 2 mg/L10%
March 2026001Chlorine, total residual, instantaneous minimum.008 mg/L≥ .011 mg/L27%
April 2026001BOD, 5-day, 20 deg. C, daily maximum8.4 lb/d≤ 2.8 lb/d200%
April 2026001BOD, 5-day, 20 deg. C, monthly average8.4 lb/d≤ 1.9 lb/d342%
April 2026001Oxygen, dissolved [DO], instantaneous minimum2.7 mg/L≥ 5 mg/L46%
April 2026002BOD, 5-day, 20 deg. C, monthly average2.2 lb/d≤ 1.9 lb/d16%
April 2026002Oxygen, dissolved [DO], instantaneous minimum2.7 mg/L≥ 5 mg/L46%
June 2026001Chlorine, total residual, instantaneous minimum.01 mg/L≥ .011 mg/L9%
June 2026002Chlorine, total residual, instantaneous maximum.08 mg/L≤ .011 mg/L627%
July 2026001Nitrogen, ammonia total [as N], daily maximum.8 lb/d≤ .7 lb/d14%
July 2026001Nitrogen, ammonia total [as N], monthly average.8 lb/d≤ .4 lb/d100%
July 2026002Nitrogen, ammonia total [as N], daily maximum20 lb/d≤ .7 lb/d2757%
July 2026002Nitrogen, ammonia total [as N], monthly average20 lb/d≤ .4 lb/d4900%

Limits in force (50)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LMay–Oct001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 1.9 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cdaily maximum≤ 2.8 lb/dJan, Feb, Mar, Apr, Nov, Dec001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 1.9 lb/dall year001
Solids, total suspendeddaily maximum≤ 2.8 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 10.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .4 lb/dMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ .7 lb/dMay–Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualinstantaneous minimum≥ .011 mg/Lall year001
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLall year001
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 23 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ .9 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 1.4 lb/dMay–Oct001
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LMay–Oct002
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec002
BOD, 5-day, 20 deg. Cdaily maximum≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec002
BOD, 5-day, 20 deg. Cmonthly average≤ 1.9 lb/dJan, Feb, Mar, Apr, Nov, Dec002
BOD, 5-day, 20 deg. Cdaily maximum≤ 2.5 lb/dJan, Feb, Mar, Apr, Nov, Dec002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Solids, total suspendedmonthly average≤ 1.9 lb/dall year002
Solids, total suspendeddaily maximum≤ 2.8 lb/dall year002
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LMay–Oct002
Nitrogen, ammonia total [as N]daily maximum≤ 10.5 mg/LMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ .4 lb/dMay–Oct002
Nitrogen, ammonia total [as N]daily maximum≤ .7 lb/dMay–Oct002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualinstantaneous maximum≤ .011 mg/Lall year002
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLall year002
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLall year002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Oct002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 23 mg/LMay–Oct002
BOD, carbonaceous [5 day, 20 C]monthly average≤ .9 lb/dMay–Oct002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 1.4 lb/dMay–Oct002

How strict are these limits?

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

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