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Phillips 66 Company

Sanitary Services, (Unknown City), Wyoming. NPDES permit WY0035777, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form MQ quarterly (8 values), form RQ yearly (1 value), form AA yearly, form RS yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 19 reports late

Limits in force (12)

ParameterStatisticLimitMonths
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 9 SUall year
Sulfide, total [as S]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Benzenedaily maximum≤ 2.2 ug/Lall year
Durationmonthly totalreport only (d/mo)all year
Sulfide-hydrogen sulfide [undissociated]daily maximumreport only (ug/L)all year
Flowdaily maximumreport only (MGD)all year
Flowmonthly averagereport only (MGD)all year
Butanedaily maximumreport only (ug/L)all year
Hydrocarbons, total petroleummonthly average≤ 10 mg/Lall year
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year

How strict are these limits?

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

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/WY0035777 · MCP: https://passage-data.com/mcp