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SUPERIOR MIDSTREAM, LLC.-Cheney Gas Production Plant

Natural Gas Liquids, Cheney, Kansas. NPDES permit KS0088528, in force until Dec 31, 2028. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form A quarterly (5 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

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

Period endingParameterReportedLimitOver by
September 2026Copper, total recoverable, daily maximum562 ug/L≤ 194 ug/L190%

Limits in force (5)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Copper, total recoverabledaily maximum≤ 194 ug/Lall year
Oxidants, total residualdaily maximum≤ 124 ug/Lall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KS0088528 · MCP: https://passage-data.com/mcp