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Graymont Western US Inc

Lime, Tacoma, Washington. NPDES permit WA0001007, in force until Dec 31, 2026. Last 12 months: no values over a limit, 1 required value missing. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form MQ quarterly (2 values), form QQ quarterly (5 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, 0 required values missing, 0 of 16 reports late

Limits in force (7)

Parameter	Statistic	Limit	Months
Temperature, water deg. centigrade	daily maximum	report only (deg C) (alert, not enforceable)	all year
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total dissolved	monthly average	≤ 25 mg/L	all year
Mercury, total [as Hg]	daily maximum	report only (ng/L) (alert, not enforceable)	all year
Flow	daily maximum	report only (gal/d) (alert, not enforceable)	all year
Flow	monthly average	report only (gal/d) (alert, not enforceable)	all year

How strict are these limits?

Solids, total dissolved, monthly average 25 mg/L — stricter than 100% of 134 other minor industrial and other permits nationwide

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

Same industry: the 5 Stone, Clay, Glass and Concrete Products permits in Washington.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WA0001007 · MCP: https://passage-data.com/mcp