G-Logics provided geotechnical and environmental support services for the City of Everett's
new Fire Station No. 5, a new 12,220 square foot, two-story facility. The project included the
demolition of site structures located on five adjacent parcels and the construction of a new
fire station on the newly assembled parcel. Components of this work include the
abandonment of site monitoring wells, remediation of petroleum-contaminated soils, removal
of two underground storage tanks, abatement of asbestos-containing construction materials,
removal/management of other hazardous materials, excavation of a hydraulic hoist, and
design of a new fueling facility. The project also included a survey for asbestos containing

materials and Universal Wastes before demolition
of existing structures, the completion of
geotechnical explorations to provide information for
the new facility's design, the preparation of
contractor specifications for several aspects of the
project, and the review of contractor activities.

For this project, G-Logics conducted an asbestos
survey for the existing fire station and four private
residences in accordance with protocols
established under the Asbestos Hazard

Emergency Response Act (AHERA). The Puget Sound Clean Air Agency (PSCAA) requires
an AHERA-level survey for demolition projects. Asbestos was discovered in all sample
structures; therefore, abatement specifications were prepared based on the collected
information. Before the site buildings were demolished, the identified asbestos was removed
by a specialty subcontractor and was documented by G-Logics.

Additional pre-construction activities included a combined site exploration conducted by
G-Logics for existing gasoline contamination (former underground gasoline storage tank)
and a geotechnical investigation to provide recommendations for design and construction of
the proposed fire station. The site exploration included seven soil borings, two of which were
converted to groundwater monitoring wells. Analytical data was presented on site maps,

boring logs, and cross-sections. This work
indicated petroleum contaminated soil did not
extend to depths greater than 20 feet and
groundwater contamination was not present.
The same borings provided geotechnical
information and samples for laboratory testing
and engineering analyses.

G-Logics also managed the design of a new
fuel-storage facility for the fire station and
prepared the associated contractor bid
specifications. The tank system consisted of a
ballistic-grade aboveground storage tank,
anchored to a slab constructed to appropriate
seismic codes, with secondary-containment
and earthquake-resistant piping/connections.

Before site redevelopment, the groundwater monitoring wells at the site were abandoned in accordance with Washington Administrative Code (WAC) Chapter 173-160, Minimum Standards for Construction and Maintenance of Wells. The existing underground fuel storage tanks and a hydraulic hoist also were removed and confirmation samples collected by G-Logics. A tank-closure report was prepared in accordance with the Washington State Department of Ecology's (Ecology) UST Site Assessment guidelines/regulations. The excavation of remaining gasoline-contaminated soils also was conducted and confirmation samples collected. This work was performed in accordance with Ecology's Model Toxics Control Act (MTCA) regulations (WAC 173-340) and the Ecology document Guidance for the Remediation of Petroleum Contaminated Soils.

Areas where remedial activities had occurred were identified on project mapping. This mapping was provided to the development contractor so they could verify the compaction of backfilled soils in the tank-removal and remedial excavations.