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Kemmerer-Diamondville Joint Powers Board

Water Supply, Unknown, Wyoming. NPDES permit WY0000116, in force until Dec 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 58 days after each period: form MQ quarterly (11 values)
Renewal application due: Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 1 required value missing, 1 of 12 reports late

Limits in force (11)

Parameter	Statistic	Limit	Months
pH	instantaneous minimum	≥ 6.5 SU (alert, not enforceable)	all year
pH	instantaneous maximum	≤ 9 SU (alert, not enforceable)	all year
Solids, total suspended	monthly average	≤ 20 mg/L	all year
Solids, total suspended	weekly average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Aluminum, total [as Al]	daily maximum	report only (mg/L)	all year
Duration	monthly total	report only (d) (alert, not enforceable)	all year
Chlorine, total residual	daily maximum	≤ .17 mg/L	all year
Solids, total dissolved	daily maximum	≤ 500 mg/L	all year
Flow	monthly average	≤ .27 MGD	all year
Flow	daily maximum	report only (MGD)	all year

How strict are these limits?

Solids, total suspended, monthly average 20 mg/L — stricter than 80% of 80 other minor industrial and other permits in Wyoming; 20% have the same limit
Solids, total suspended, weekly average 30 mg/L — stricter than 77% of 58 other minor industrial and other permits in Wyoming; 22% have the same limit
Solids, total dissolved, daily maximum 500 mg/L — stricter than 76% of 362 other minor industrial and other permits nationwide; 21% have the same limit

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

Same industry: the 5 Water Supply permits in Wyoming.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WY0000116 · MCP: https://passage-data.com/mcp