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4530 State Hwy 47, LLC

Gasoline Service Stations, Washington, Missouri. NPDES permit MO0113964, in force until Aug 31, 2027. Last 12 months: over a limit 4 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (24 values), form WC yearly
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 5 reports late

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

Period endingParameterReportedLimitOver by
March 2026Copper, total recoverable, daily maximum76.8≤ 27.9 ug/L175%
March 2026Copper, total recoverable, monthly average76.8≤ 10.9 ug/L605%
March 2026Zinc, total recoverable, monthly average82.5≤ 79.6 ug/L4%
June 2026Copper, total recoverable, monthly average13.3≤ 10.9 ug/L22%

Limits in force (26)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/Lall year
Boron, total recoverabledaily maximumreport only (ug/L)all year
Boron, total recoverablemonthly averagereport only (ug/L)all year
Zinc, total recoverabledaily maximum≤ 223 ug/Lall year
Zinc, total recoverablemonthly average≤ 79.6 ug/Lall year
Aluminum, total recoverabledaily maximum≤ 750 ug/Lall year
Aluminum, total recoverablemonthly average≤ 290 ug/Lall year
Cadmium, total recoverabledaily maximum≤ 2.56 ug/Lall year
Cadmium, total recoverablemonthly average≤ 1.05 ug/Lall year
Copper, total recoverabledaily maximum≤ 27.9 ug/Lall year
Copper, total recoverablemonthly average≤ 10.9 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. colidaily maximum≤ 1030 #/100mLApr–Dec
E. coli30-day geometric mean≤ 206 #/100mLApr–Dec
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (toxic)all year
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximumreport only (toxic)all year

How strict are these limits?

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

Same industry: the 17 Automotive Dealers and Gasoline Service Stations permits in Missouri.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0113964 · MCP: https://passage-data.com/mcp