GeoEngineers 10/17/2016 - Laserfiche WebLink

Page 1 of 3 EXHIBIT A Work Order Form ENVIRONMENTAL SERVICES PROJECT SCOPE AND ESTIMATE Project Title: Phase II ESA—Former Smith Street Sawmill W.O. # 1 1. Project Scope: CONSULTANT will perform a Phase II environmental site assessment(ESA)for the approximate 4.7-acre Former Smith Street Sawmill property located at 3600 Smith Avenue (Snohomish County Tax Parcel Numbers 00-5760-019-000-05, 00-5760-019-000-06, 00-5760-043-000-02, 00-5760-012-000-03, 29-0529-003- 008-00,29-0529-002-012-00,29-0529-003-030-00 and 29-0529-003-010-00) in Everett,Washington.The Phase II ESA is requested to assist City staff in evaluating potential environmental liabilities associated with ownership and potential redevelopment of the subject property. The proposed Phase II ESA scope of services includes collection of soil and groundwater samples at the subject property in areas associated with potential sources of contamination identified in the Phase II ESA report. Those sources include possible past heating oil use, sawmill equipment operations, sawmill maintenance, historic fuel storage, a below-grade sump in the sawmill maintenance building, electrical transformers, imported fill of unknown origin, building material waste, and possible contamination migration from off-site known or suspected sources of contamination. No wood treatment activities were reported to have taken place at the subject property in the past. The general scope of the Phase II ESA is a geophysics investigation to check for possible underground storage tanks (USTs), collection of surface and subsurface soil samples from excavated test pits, and collection of subsurface soil and one-time grab groundwater samples from direct-push soil borings.We understand that the buildings and debris will generally be cleared from the property before the Phase II ESA field investigation.Test pits provide an opportunity to observe soil conditions in the upper 10 to 12 feet and collect soil samples from locations where contaminants are suspect.We are proposing to also use direct push exploration and sampling to assess deeper soil than the test pits explorations can likely attain and to obtain more representative groundwater samples. The Phase II ESA scope presented below is a screening-level assessment to target potential source areas;supplemental investigations may be needed to delineate contaminant impacts(if any) to soil or groundwater or to develop remediation cost estimates. Tasks associated with the Phase II investigation are as follows: Field Investigation Coordinate site access with site and City representatives. Coordinate the geophysics, drillers and backhoe subcontractors for planned investigation activities. 1. Prepare an exploration sampling and analysis plan (SAP) and site health and safety plan (HASP) prior to the start of field work.The exploration plan will be distributed to the City for review and comment before beginning exploration field activities. 2. Subcontract a geophysics investigation to check for possible USTs. 3. Mark proposed exploration locations in the field and notify public utilities to mark utilities in the vicinity of the proposed exploration locations.Subcontract with a private utility locate service to identify underground utilities on the property prior to sampling. 4. Observe and document one day of subcontracted direct-push drilling, approximately 6 to 8 borings to maximum depth of 15 feet below ground surface (bgs). Discrete soil samples will be obtained at approximately 2-foot depth intervals from the direct-push exploration continuous cores.