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Halliburton Energy Services, Inc.

Sanitary Services, Duncan, Oklahoma. NPDES permit OK0100498, in force until Nov 30, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (6 values)
Renewal application due: Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (6)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Perchlorate [ClO4]	monthly average	report only (ug/L)	all year
Perchlorate [ClO4]	daily maximum	≤ 9 ug/L	all year

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

Same industry: the 4 Sanitary Services permits in Oklahoma.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0100498 · MCP: https://passage-data.com/mcp