Recent Projects

Port of Bellingham
Multiple Hazardous Materials Surveys

Migizi Group has performed hazardous materials surveys in preparation for the demolition of the former Blaine Marina Appliance Building as well as several derelict vessels and vessel remains. The surveys were focused on sampling regulated materials such as asbestos, lead, polychlorinated biphenyls, as well as Universal Waste (such as mercury-containing materials and batteries). The asbestos survey was conducted in general accordance with the “Good Faith” asbestos survey requirements in the Washington Administrative Code (WAC) 296-62-07721, (Communication of Hazards to Employees) as required by the Washington State Department of Labor and Industry (L&I) and regionally by local air pollution control agencies. Finally, samples of potentially-lead-containing waste streams were representatively sampled and evaluated in accordance with Toxicity Characteristic Leaching Procedure (TCLP) for lead. Inspection and sample collection was performed by Asbestos Hazard Emergency Response Act (AHERA)-Certified Building Inspectors.

Former UST Release & Incomplete Cleanup
Remedial Investigation, Feasibility Study, Cleanup Action Plan & PLP Plume Fingerprinting, Facility Decontamination Technical Assistance & Peer Review

As the result of the sale of a private bank in Washington, MGI was selected by a legal team to evaluate and rectify the environmental conditions associated with a former gas station, adjacent to and owned by the Bank at the time of the sale. The Bank had anticipated developing the property as part of a joint venture, but stopped short when contamination was discovered. Records indicate that a gas station had been closed, and the gasoline USTs decommissioned in 1991, with subsequent cleanup efforts, a No Further Action, as well as Recession of No Further Action. MGI evaluated soil gas, soil, and groundwater across the site, wrote the RI/FS, and executed the Cleanup Action Plan (CAP), which involved excavation of source soil as well as subsequent injection of concentrated hydrogen peroxide and iron, to chemically treat the remaining hydrocarbons.

Skykomish School Remediation Review
Plan Review, Analysis of Contaminant & Rec’s for Control / Correction of Hazards

In Skykomish, Washington, a petroleum hydrocarbon plume generated by Burlington Northern Santa Fe Railway Company’s (BNSF) Former Maintenance and Fueling Facility was in the final stages of the remedial design. The plume extends under the Skykomish School, and the planned remedial efforts involve a hot-water system which loops under the school. Increasing the temperature of the petroleum hydrocarbons potentiates the remediation process in the subsurface, but also generates a potential risk under a sensitive-receptor occupied building. MGI was contracted to prepare a Hot water Flushing, Air, Noise, and Odor Monitoring Plan which detailed air, noise and odor monitoring strategies designed to protect the health and insure the wellbeing of Skykomish students, staff and visitors throughout the project.

Port Gardner Bay, Everett, WA
This project is named TC Systems in reference to the latest tenant of the property. TC Systems was a coatings company that operated historically at 1032 West Marine View Drive, in Port Gardner Bay of Everett, Washington from 1979 to 2010. The property operated as the Jamison Shingle Mill from 1910 until the 1960’s. The property was then filled with the spoils of the neighboring 10th Street boat launch as well as fill from other areas during the 1960’s and 1970’s. A number of businesses operated at the property in the 70’s before (what would become) TC Systems operated at the property beginning in 1979. The property was placed under Agreed Order in 2010 as part of the Puget Sound Initiative. Since the beginning of the project, MGI Principals have provided Expert Review services to ownership of TC Systems. MGI’s responsibilities include reviewing project documents for Quality Control and providing technical input to Legal Counsel. The Site is currently approaching completion of the RI/FS stage.

New MACNAK Headquarters, Lakewood, WA

MGI provided civil services for site improvements and the construction of MACNAK Construction’s new headquarters including an office, shop, and associated parking areas. Services for this project included utilities, geotechnical engineering, full drainage report, large infiltration bed, stormwater treatment, pavement design, site layout, permitting, water line design, construction monitoring, and erosion.

Proposed Condominiums, Seattle, WA
MGI provided civil services for the construction of a proposed residential development in Seattle, Washington. Services for this project included a geotechnical engineering that included subsurface explorations, a Small Pilot Infiltration Test, ultra-block wall recommendations, soldier pile wall recommendations and a slope stability analysis, landfill gas mitigation recommendations, a drainage report, plans, TESC, and ongoing construction monitoring for the construction of the residential development.

Car Wash, Bonney Lake, WA
MGI provided civil and geotechnical services for site improvements and the construction of a new car wash and associated pavement. Services for this project included geotechnical engineering, a drainage report and TESC, water and sewer designs, and sizing of water reclamation system for the proposed car wash.

School District Lead in Drinking Water
Lead in drinking water has seen a resurgence of attention in the last several years. MGI assisted multiple schools and school districts by preparing comprehensive district-wide sampling plans, sampling events, analyses and recommendations. Detailed water system component information, collected during the sampling events, is used to help identify any similarities in features and lead-in-water data. We provided school districts with interim recommendations and protocol to follow (and document) until suspect water features could be replaced and sampled. MGI also crafted informational notification verbiage to assist with public notifications. Along with the final data, deliverables also included as-built data (in an excel format) to assist in facility management, maintenance and tracking.

Cross Sonic Loggic (CSL), Cowlitz Falls Dam
CSL testing is a safe, accurate, reliable, and cost-effective non-destructive test method used extensively for checking the homogeneity and integrity of concrete in deep foundations such as bored piles, drilled shafts, concrete piles, augercast piles, diaphragm walls, barrettes, and dams. Utilizing the Cross Hole Ultrasonic Monitor (CHUM) system, measurements of propagation time and relative energy of an ultrasonic pulse between two access tubes (cross hole) can be recorded; revealing defects, anomalies, or other unusual signal variations as encountered.

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