Siss LLC

Portable Toilets

Waste hauler in Ephrata, WA · 3 drivers · 3 trucks · USDOT 1646674

Company details

Address
11617 Dodson Rd NW
Ephrata, WA 98823
Phone
(509) 855-1049
County
Grant County
USDOT number
1646674 (active)
FMCSA registered
Since May 2007
Operation
Interstate carrier · Private property (hauls its own cargo)
Cargo on file
Other: Water
Hazardous materials
No
Locations
1 location · operates in WA
Data sources
FMCSA Motor Carrier Census (24 Aug 2026)
Last verified
2026-10-14

Fleet and drivers

Drivers
3
Power units
3 trucks
Driving radius
Regional / long haul (2 drivers beyond 100 miles) (2 interstate, 1 intrastate)
Annual mileage
5,000 miles (2025 filing)
Fleet size band
1–4 drivers
Last FMCSA filing
MCS-150 updated Mar 3, 2026

Figures come from the carrier's own FMCSA registration filings and are self-reported.

Business categories

  • Portable Toilets

About this hauler

Siss LLC is a waste hauler based in Ephrata, Washington, in Grant County. It has been registered with the Federal Motor Carrier Safety Administration since 2007 (USDOT 1646674) and files as an interstate carrier hauling Water. Its latest filing lists 3 drivers and 3 power units, with 5,000 miles driven in 2025. It is listed under portable toilets. The nearest transfer station is CDSI Transfer & Recycling, 19.5 miles away, and the nearest landfill is Ephrata Landfill in Ephrata, 5.4 miles away.

Nearby facilities

Nearest landfill: Ephrata Landfill, Ephrata — 5.4 mi

Other waste haulers nearby

One of 16 waste haulers in Grant County, WA.

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Area served

Based in Ephrata; towns within 15 miles: Ephrata, Soap Lake, Palisades.

County context

One of 16 waste haulers in Grant County, WA and one of 982 waste haulers in Washington.

ZIP 98823 at a glance

Population
12,188 (16 per sq mi)
Median age
32
Households
Median income $73,074 · 33% earn six figures
Housing
67% owner-occupied · median home value $265,429 · median rent $1,088
Workforce
63% labor-force participation · 4.5% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Washington solid-waste agency: Washington State Department of Ecology

Disposal options for this hauler

3 transfer stations, 5 recycling centers and 2 landfills in Grant County.