ARCHIVED REPORTS_XR0011542 - Laserfiche WebLink

Home Browse Search

0 0 HORIZON ENVIRONMENTAL INC FIELD METHODS AND PROCEDURES The following section describes field procedures that will be utilized by Horizon Environmental Inc (Horizon) personnel in performance of the tasks involved with this project 10 HEALTH AND SAFETY PLAN Field work performed by Horizon and subcontractors at the site will be conducted according to guidelines established in a Site Health and Safety Plan (SHSP) The SHSP is a document that describes the hazards that may be encountered to the field and specifies protective equipment, work procedures, and emergency information A copy of the SHSP will be at the site and available for reference by appropriate parties during work at the site 20 SOIL EXCAVATION AND SAMPLING Permits will be acquired prior to the commencement of work at the site If a mobile laboratory is not available to analyze excavated soil, the soil will be evaluated using a field calibrated (using Lsobutylene) Thermo-Environmental Instruments Model 580 Organic Vapor Meter (OVM) or equivalent instrument This evaluation will be done upon arrival of the soil at the ground surface in the excavator bucket by removing the top portion of soil from the bucket, and then placing the intake • probe of the OVM against the surface of the soil in the bucket Field instruments such as the OVM are useful for measuring relative concentrations of vapor content, but cannot be used to measure levels of hydrocarbons with the accuracy of laboratory analysis Samples will be taken from the soil to the bucket by driving laboratory-cleaned brass sleeves into the soil The samples will be sealed in the sleeves using Teflon sheets, plastic caps, and plastic zip-lock bags, labeled, and promptly placed in iced storage If mobile laboratory or field subjective analyses suggest the presence of hydrocarbons in the soil, additional excavation and soil sampling will be performed, using similar methods Soil samples collected from stockpiled soil will be collected by selecting random locations acces;able around the soil pile, removing approximately six inches of soil and driving a clean brass sleeve into the soil pile at this location The number of samples collected will be based on the amount of samples required for characterization depending on the disposal facility requirements A composite sample is normally four sample locations (as discrete discrete samples) per composite All samples collected will be transported utilizing appropriate chain of custody to a laboratory certified to perform the requested analyses