Information for contractors and consultants.
Not sure if your waste can go to the landfill?
We can help. We use the Waste Disposal Authorization (WDA) process to determine if waste is hazardous or non-hazardous so you can properly dispose in Pierce County.
Some waste—like industrial waste or contaminated soil—can designate as dangerous waste and isn’t accepted at the landfill. Other examples of possible dangerous waste include:
- Contaminated soils.
- Industrial waste (ash, slag).
- Spent sandblast material.
- Paint-booth filters.
- Residue from steam-cleaning operations.
- Grit and soil from carwash catch basins.
- Certain asbestos waste.
Get a waste disposal authorization.
All waste must be generated in Pierce County. Our landfill can’t accept waste from outside Pierce County.
Properly designate your waste.
You are responsible for designating your waste. Ecology’s Dangerous Waste Designation website can help assist you with this.
Required Sample Analysis
The number of required samples is determined by the volume of waste.
| Volume in Cubic Yards | Number of Samples |
| 0-25 | 2 |
| 26-100 | 3 |
| 101-500 | 5 |
| 501-1000 | 7 |
| 1001-2000* | 10 |
*One additional sample for every 500 cubic yards of material over 2000 cubic yards.
The following analyses may apply to your site.
| Analysis | Method |
| Total RCRA Metals (8 analytes) | EPA 6010D/7471B |
| TCLP RCRA Metals (8 analytes) | EPA 1311/6010D/7470A |
| TPH-Hydrocarbon Identification | NWTPH-HCID |
| TPH- Gasoline Range Organics | NWTPH-Gx |
| TPH- Diesel and Heavy Oil Range Organics | NWTPH-Dx |
| Volatile Organics (VOCs) | EPA 8260C |
| Halogenated Volatile Organics (HVOCs) | EPA 9023 and 5050/9056 |
| BTEX | EPA 8021B |
| Semivolatile Organics (with low level PAHs) | EPA 8270D |
| Semivolatile Organics | EPA0D |
| PAHs-Low levels | EPA 8270D/SIM |
| PCBs (as Aroclors) | EPA 8082A |
| TCLP Semivolatile Organics | EPA 1311/8270D |
| TCLP Volatile Organics | EPA 1311/8260C |
| Paint Filter Test | EPA 9095 |
| pH (Soil) | EPA 9045D |
Contact us if you don’t know which analyses to use for your Waste Disposal Authorization.
You can find accredited labs at apps.ecology.wa.gov/laboratorysearch. Ensure the lab can test both total metals and TCLP metals.
Ready to apply for a WDA? We have a new online portal!
Submit:
- A new application.
- Payment.
- See our current fee schedule for costs.
- Results of analyses performed on waste samples.
We will review the application within 3 business days and let you know if you can dispose in Pierce County. If accepted, we will issue the WDA. Conditions of approval vary.
These Pierce County facilities accept waste through the WDA process:
- LRI Landfill, 30919 Meridian St. E Graham, (253) 847-7555 (large quantities).
- City of Tacoma Transfer and Recovery Facility, 3510 S. Mullen St., Tacoma, (253) 591-5543 (small quantities).
- Hidden Valley Transfer Station, 17925 Meridian S, Puyallup, (253) 847-7555 (small quantities).
Questions?
Contact us at SolidWaste@tpchd.org for more info.