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Alan Johnson

Crude Petroleum And Natural Gas, Prudhoe Bay, Alaska. NPDES permit AK0055921, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form M monthly (7 values), form Q quarterly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 9 reports late

Limits in force (9)

ParameterStatisticLimitMonths
Temp. diff. between samp. & upstrm deg. Cdaily maximum≤ 35 deg Call year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Chlorine, total residualmonthly average≤ 100 ug/Lall year
Chlorine, total residualdaily maximum≤ 150 ug/Lall year
Flowmonthly average≤ 5 MGDall year
Flowdaily maximumreport only (MGD)all year
Toxicity, Chronicmaximumreport only (tox chronic)all year
Toxicity, Chronicmaximumreport only (tox chronic)all year

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

Same industry: the 11 Oil and Gas Extraction permits in Alaska.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AK0055921 · MCP: https://passage-data.com/mcp