Think Tank Sanitation Inc
Waste hauler in Mattawa, WA · 10 drivers · 11 trucks · USDOT 1946376
Company details
- Address
- 15639 Road 23 SW
Mattawa, WA 99349 - Mailing address
- PO Box 1585, Mattawa, WA 99349
- Phone
- (509) 932-4370
- Website
- thinktanksanitation.com
- County
- Grant County
- USDOT number
- 1946376 (active)
- FMCSA registered
- Since September 2009
- Operation
- Intrastate carrier · Private property (hauls its own cargo)
- Cargo on file
- Construction; Liquids and gases; Other: Sewage
- Hazardous materials
- No
- Locations
- 1 location · operates in WA
- Data sources
- FMCSA Motor Carrier Census (24 Aug 2026)
- Last verified
- 2026-10-15
Fleet and drivers
- Drivers
- 10
- Power units
- 11 trucks
- Driving radius
- Local (all drivers within 100 miles) (0 interstate, 10 intrastate)
- Annual mileage
- 75,000 miles (2019 filing)
- Fleet size band
- 5–10 drivers
- Last FMCSA filing
- MCS-150 updated Jul 23, 2021
Figures come from the carrier's own FMCSA registration filings and are self-reported.
Business categories
- Septic Tank & System Cleaning
- Sewer Contractors
- Portable Toilets
About this hauler
Think Tank Sanitation Inc is a waste hauler based in Mattawa, Washington, in Grant County. It has been registered with the Federal Motor Carrier Safety Administration since 2009 (USDOT 1946376) and files as an intrastate carrier hauling construction, liquids and gases, Sewage. Its latest filing lists 10 drivers and 11 power units, with 75,000 miles driven in 2019. It is listed under septic tank & system cleaning, sewer contractors, portable toilets. The nearest landfill is Ryegrass Limited Purpose Landfill in Ellensburg, 29 miles away.
Nearby facilities
Nearest landfill: Ryegrass Limited Purpose Landfill, Ellensburg — 29.0 mi
Other waste haulers nearby
- J&S Septicsame town · Mattawa, WA · 1 driver
- Desert Vactor Servicessame town · Mattawa, WA · 2 drivers
- Cliff's Septic--Bert's Excavating16.0 mi · Sunnyside, WA · 12 drivers
- Sunnymex16.0 mi · Sunnyside, WA · 1 driver
Is this your company? Claim your free profile to update your services, service area and contact details. Claim this profile
Area served
Based in Mattawa; towns within 15 miles: Mattawa, Royal City, Beverly.
County context
One of 16 waste haulers in Grant County, WA and one of 1,009 waste haulers in Washington.
ZIP 99349 at a glance
- Population
- 8,143 (12 per sq mi)
- Median age
- 29
- Households
- Median income $61,333 · 24% earn six figures
- Housing
- 54% owner-occupied · median home value $416,951 · median rent $1,243
- Workforce
- 66% labor-force participation · 7.6% 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.