Lilly's Septic Service & a-1 Environmental Service

Septic Tank & System Cleaning

Waste hauler in Ravensdale, WA · 1 driver · 2 trucks · USDOT 2014739

Company details

Legal name
Septic Systems Northwest LLC
Address
30010 Retreat Kanaskat Rd SE
Ravensdale, WA 98051
Mailing address
PO Box 38, Ravensdale, WA 98051
Phone
(425) 432-3084
Website
lillyseptic.com
County
King County
USDOT number
2014739 (active)
FMCSA registered
Since March 2010
Operation
Intrastate carrier · Authorized for Hire
Cargo on file
Other: Sewage
Hazardous materials
No
Locations
2 locations · operates in WA
Data sources
FMCSA Motor Carrier Census (24 Aug 2026), Overture Maps (Aug 2026), company website (Sep 2026)
Last verified
2026-10-15

Fleet and drivers

Drivers
1
Power units
2 trucks
Driving radius
Local (all drivers within 100 miles) (1 interstate, 0 intrastate)
Fleet size band
1–4 drivers
Last FMCSA filing
MCS-150 updated Mar 31, 2010

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

Business categories

  • Septic Tank & System Cleaning

Map category: Septic services (Overture Maps).

Services mentioned on the company website

septicseptic tankpumpingseptic pumpingsludge

Keywords read from lillyseptic.com in Sep 2026. Confirm services and pricing with the company.

About this hauler

Lilly's Septic Service & a-1 Environmental Service is a waste hauler based in Ravensdale, Washington, in King County. It has been registered with the Federal Motor Carrier Safety Administration since 2010 (USDOT 2014739) and files as an intrastate carrier hauling Sewage. Its latest filing lists 1 driver and 2 power units. It is listed under septic tank & system cleaning, and its website mentions septic, septic tank, pumping, septic pumping. The nearest transfer station is Cedar Falls Drop Box, 9.7 miles away, and the nearest landfill is Hobart LF in Maple Valley, 5.2 miles away.

Nearby facilities

Nearest landfill: Hobart LF, Maple Valley — 5.2 mi

Other waste haulers nearby

One of 209 waste haulers in King County, WA.

Is this your company? Claim your free profile to update your services, service area and contact details. Claim this profile

Area served

Based in Ravensdale; towns within 15 miles: Ravensdale, Black Diamond, Maple Valley, Hobart, Kent, Auburn, Issaquah, Renton, Preston, North Bend.

County context

One of 209 waste haulers in King County, WA and one of 1,009 waste haulers in Washington.

ZIP 98051 at a glance

Population
3,442 (25 per sq mi)
Median age
45
Households
Median income $136,439 · 76% earn six figures
Housing
93% owner-occupied · median home value $789,870 · median rent $1,727
Workforce
68% labor-force participation · 2.1% 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

24 transfer stations, 60 recycling centers and 4 landfills in King County.