COMPLIANCE INFO - Laserfiche WebLink

Home Browse Search

Soil Borings in Overburden Soils Protocol Paragon requires the drilling subcontractor to steam-clean their down-hole equipment (e.g. augers, drilling rods, and split-spoon) in accordance with our "Decontamination Protocols for Non-Disposable Sampling and Field Equipment" before starting work at the Site. Paragon collects soil samples from the surface and at five-foot intervals below the surface, unless otherwise specified. We may collect additional soil samples at observed strata changes. We field-screen soil samples for total organic vapors JOV) with a portable photoionization detector in accordance with our"Soil Sample Headspace Screening Protocol." Paragon typically advances soil borings between 5-10 feet below the observed groundwater table. However, we may elect to install borings at lesser or greater depths based on known, observed, or inferred soil and hydrological characteristics. In the case of soil borings only (no monitoring well installation), Paragon directs the drilling subcontractor to backfill the entire boring with the soil cuttings upon completion, and compact it if necessary. Should it require additional fill to return the boring to grade, we direct the drilling subcontractor to use additional clean soil, sand, bentonite, or concrete as backfill material. In the event Paragon encounters contaminated soil which we did not deem prudent to use as backfill, we segregate such soil for eventual off-Site recycling or disposal. Where we encounter a limited amount of contaminated soil (less than a few cubic yards), we place it in 55-gallon drums designated for this purpose and clearly mark the drums with waterproof ink or paint. Where we encounter a larger amount of contaminated soil, we stockpile it on 6-millimeter polyethylene sheeting, cover the stockpile with more sheeting, and secure it in place.