If a dry well owner suspects contamination or is directed by the ADEQ to perform an investigation of the dry well, EN TECH can develop and implement a dry well investigation to evaluate the presence and extent of contamination. EN TECH"s investigation procedures are designed to address the concerns of the ADEQ while being cost-effective to our clients. The ADEQ may require an investigation of a dry well prior to abandonment. The investigation process is summarized in the Dry well Investigative Screening Process Chart and may involve some or all of the following: Collection and analysis of sediment samples from the dry well settling chamber. Background information on dry well construction, pretreatment, subsurface soils, surface water, groundwater depth and flow direction.
