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BHT Investment Company, Inc.

Gasoline Service Stations, Conway, Arkansas. NPDES permit AR0044997 expired Dec 31, 2025; its limits still apply. Last 12 months: over a limit 18 times (last July 2026), 8 of 19 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (4 values), form Q quarterly (15 values), form F quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 5 required values missing, 2 of 21 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
December 2025Chlorine, total residual, instantaneous maximum.02 mg/L≤ .011 mg/L82%
April 2026BOD, carbonaceous [5 day, 20 C], daily maximum80 mg/L≤ 30 mg/L167%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average80 mg/L≤ 20 mg/L300%
April 2026Nitrogen, ammonia total [as N], daily maximum.3 lb/d≤ .2 lb/d50%
April 2026Nitrogen, ammonia total [as N], daily maximum85 mg/L≤ 5.6 mg/L1418%
April 2026Nitrogen, ammonia total [as N], monthly average.3 lb/d≤ .2 lb/d50%
April 2026Nitrogen, ammonia total [as N], monthly average85 mg/L≤ 5.6 mg/L1418%
April 2026Oxygen, dissolved [DO], instantaneous minimum.12 mg/L≥ 5 mg/L98%
June 2026Coliform, fecal general, 30-day geometric mean> 12000 #/100mL≤ 1000 #/100mL—
June 2026Coliform, fecal general, 7-day geometric mean> 12000 #/100mL≤ 2000 #/100mL—
June 2026Solids, total suspended, daily maximum190 mg/L≤ 30 mg/L533%
June 2026Solids, total suspended, monthly average190 mg/L≤ 20 mg/L850%
July 2026BOD, carbonaceous [5 day, 20 C], daily maximum120 mg/L≤ 23 mg/L422%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average120 mg/L≤ 15 mg/L700%
July 2026Nitrogen, ammonia total [as N], daily maximum97 mg/L≤ 9 mg/L978%
July 2026Nitrogen, ammonia total [as N], monthly average.4 lb/d≤ .3 lb/d33%
July 2026Nitrogen, ammonia total [as N], monthly average97 mg/L≤ 6 mg/L1517%
July 2026Oxygen, dissolved [DO], instantaneous minimum.75 mg/L≥ 3 mg/L75%

Limits in force (41)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 3 mg/LMay–Oct
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ .8 lb/dall year
Solids, total suspendeddaily maximum≤ 1.3 lb/dall year
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Oil & Greasemonthly average≤ .4 lb/dall year
Oil & Greasedaily maximum≤ .6 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 5.6 mg/LApr
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]daily maximum≤ 5.6 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 9 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 16.7 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .2 lb/dApr
Nitrogen, ammonia total [as N]monthly average≤ .3 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ .5 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ .2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ .4 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ .7 lb/dJan, Feb, Mar, Nov, Dec
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≤ .011 mg/Lall year
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 23 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ .6 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ .8 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ .9 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 1.3 lb/dJan, Feb, Mar, Apr, Nov, Dec

How strict are these limits?

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

Same industry: the 13 Automotive Dealers and Gasoline Service Stations 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/AR0044997 · MCP: https://passage-data.com/mcp