Category: News

CRETE led a team that was awarded the Parcel 1B RI/FS and Remediation contract with the Port of Tacoma. Parcel 1B, also known as the Earley Business Center, is an 80-acre site located at the end of the Blair-Hylebos peninsula. CRETE is looking forward to working with the Port of Tacoma to help the project efficiently progress through the regulatory process. CRETE would like to thank our project team members, Pacific Groundwater Group, Moffatt & Nichol, and Jacobs Associates, for their support on this project and for our continued working relationships.

CRETE attended the Remediation of Contaminated Sediments conference in Dallas and presented a poster entitled Geotechnical Analysis of Soft Sediment to Support an
Environmental Cap. CRETE provides unique expertise related to assessing the potential to place an environmental cap on very soft sediment, where representative sediment samples are very difficult to collect and where traditional geotechnical field tests cannot characterize the low strength sediment. Our expertise includes traditional and specialized in situ field testing to collect undrained shear strength data for the entire sediment depth profile. The geotechnical analysis of the native sediment includes punching shear bearing capacity and slope stability. Based on these collection and analysis methods, environmental cap material and placement methods have been specified to allow successful capping of contaminated sediment.

Soil excavation in preparation of the Targa Sound Terminal Renewable Fuels Expansion Project began on September 10, 2012. CRETE designed the soil excavation/stabilization, is managing construction, and is conducting confirmation sampling. A blend of magnesium oxides and calcium phosphates is mixed in-place into soil to prevent leaching of lead and cadmium, thus reducing transport and disposal costs.

CRETE represented the Port of Seattle at the Duwamish River Festival on August 27, 2012. The Festival included information booths informing residents of upcoming sediment/soil cleanups and boat tours of the Lower Duwamish Waterway. Shown here (L to R) is Mike Byers (CRETE), Sally del Fierro (Port), Seattle Mayor Mike McGinn, and Roy Kuroiwa (Port).

The final design for soil and sediment excavation/dredging at Terminal 117, an Early Action Area in the Lower Duwamish Waterway Superfund Site, has been completed. The design includes removal of soil and sediment to meet RvALs consitent with the larger LDW work, while protecting community health and water quality. Terminal 117 is located within the South Park Neighborhood adjacent to residences and a marina, and within a Tribal Usual and Accustomed fishing area. The removal action will begin next summer.

Ms. Ott is an Environmental Scientist with over 10 years of environmental consulting experience. She is a key team member on multi-million dollar projects that include investigation, feasibility evaluation, and cleanup. Ms. Ott specializes in evaluating background conditions and recontamination potential and modeling natural recovery potential.