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Alon Asphalt Company

Asphalt Paving Mixtures And Blocks, Woodway, Washington. NPDES permit WA0003239 expired Sep 30, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall MP1 form MM monthly (11 values), outfall MP1 form QQ quarterly (3 values), outfall MP3 form MM monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 28 reports late

Limits in force (36)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradeaveragereport only (deg C) (alert, not enforceable)all yearMP1
Temperature, water deg. centigradeaveragereport only (deg C) (alert, not enforceable)all yearMP1
Temperature, water deg. centigradedaily maximumreport only (deg C) (alert, not enforceable)all yearMP1
Temperature, water deg. centigradedaily maximumreport only (deg C) (alert, not enforceable)all yearMP1
pHdaily minimum≥ 6 SUall yearMP1
pHdaily minimum≥ 6 SUall yearMP1
pHdaily maximum≤ 9 SUall yearMP1
pHdaily maximum≤ 9 SUall yearMP1
Solids, total suspendeddaily maximum≤ 45 mg/Lall yearMP1
Solids, total suspendeddaily maximum≤ 45 mg/Lall yearMP1
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall yearMP1
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall yearMP1
Copper, total [as Cu]daily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Copper, total [as Cu]daily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Nickel, total [as Ni]daily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Nickel, total [as Ni]daily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Zinc, total [as Zn]daily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Zinc, total [as Zn]daily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Benzenedaily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Benzenedaily maximumreport only (ug/L) (alert, not enforceable)all yearMP1
Total Petroleum Hydrocarbons - Dieseldaily maximum≤ 5 mg/Lall yearMP1
Total Petroleum Hydrocarbons - Dieseldaily maximum≤ 5 mg/Lall yearMP1
Total Petroleum Hydrocarbons - Gasolinedaily maximum≤ 1 mg/Lall yearMP1
Total Petroleum Hydrocarbons - Gasolinedaily maximum≤ 1 mg/Lall yearMP1
Flowdaily maximum≤ 936000 gal/dall yearMP1
Flowdaily maximum≤ 936000 gal/dall yearMP1
Oil and grease visualdaily maximum≤ 0 N=0;Y=1all yearMP1
Oil and grease visualdaily maximum≤ 0 N=0;Y=1all yearMP1
pHdaily minimumreport only (SU) (alert, not enforceable)all yearMP3
pHdaily minimumreport only (SU) (alert, not enforceable)all yearMP3
pHdaily maximumreport only (SU) (alert, not enforceable)all yearMP3
pHdaily maximumreport only (SU) (alert, not enforceable)all yearMP3
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall yearMP3
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall yearMP3
Oil and grease visualdaily maximum≤ 0 N=0;Y=1all yearMP3
Oil and grease visualdaily maximum≤ 0 N=0;Y=1all yearMP3

How strict are these limits?

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

Same industry: the 6 Petroleum Refining and Related Industries permits in Washington.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WA0003239 · MCP: https://passage-data.com/mcp