Soil & Groundwater Investigations

EPS was contracted by another nationwide consultant firm, under the direct guidance of the U.S. Army Corps of Engineers, to conduct soil sampling at the Shilling Airforce Base in Salina, Kansas. Several hundred soil samples were collected adjacent to underground piping and petroleum pump houses. The project was successfully performed following the Corps' field sampling protocal. EPS was contracted by a nationwide consultant firm, again under the direct guidance of the U.S. Army Corps of Engineers, to conduct soil and groundwater sampling at the former Johnson County Air Force Base near Kansas City. Several hundred soil and groundwater samples were collected. The project was successfully completed following all of the Corps of Engineer's guidelines. EPS was contracted by a nationwide consultant firm, under the direct guidance of the U.S. Army Corps of Engineers, to conduct soil and groundwater sampling at the Fort Riley Army Base near Junction City, Kansas. Several thousand soil and groundwater samples were collected and analyzed on site over a period of eight years. The projects were successfully completed following all of the Corps of Engineer's guidelines. EPS was contracted by a pipeline company to determine the degree of soil contamination at a spill site near Houston, Texas. It was discovered that a pipeline valve had leaked and caused extensive petroleum contamination within the soil. EPS was hired to determine the vertical and lateral extent of the contamination so as to provide an estimate of the amount of soil that had to be removed for remedial purposes. EPS collected and analyzed soil samples from varying depths throughout the site. Upon review of the field analytical data, the estimated amount of contaminated soil believed to be above Texas action limits was successfully determined. Remedial activities have been completed and the site has been accepted as clean by the Texas Water Commission. EPS was contracted by a large consultant firm to perform a subsurface soil and bedrock investigation at the former Stapleton Airport in Denver, Colorado. Free-phase petroleum related contamination was previously found to be present within the groundwater. EPS was hired to determine the lateral extent of the free-phase product, the depth to bedrock within each testhole, and the degree of the contamination within the overlying soil. The groundwater contamination was successfully delineated and the bedrock surface contoured. It was determined that the bedrock surface had greatly influenced the migration of the contamination. EPS was contracted by a major pipeline company to perform site assessments at several of its booster substations across the midwestern U.S. to determine the existence of any petroleum-related contamination that may have been present within the subsurface. Twenty-six (26) substations, from Louisianna to Indiana, were successfully investigated and the extent of the contamination defined. The project was completed within one month. EPS identified several areas of concern surrounding the booster stations and is addressing the problem areas. EPS was contracted by a nationwide consultant firm to determine the vertical extent of the hydrocarbon contamination at two former manufactured gas plants in western Missouri. Soil and groundwater samples were collected and analyzed on site. Confirmation samples were sent to a certified laboratory to confirm all field data. The project was successfully completed within a week. EPS was contracted by a major natural gas company to determine the existence of any petroleum-related hydrocarbons that may be present at their facilities. The areas of interest were within the boundaries of former condensate burn pits. If contamination was discovered, then the plume was defined. Vertical soil profiles were conducted within the former pits to determine visual zones of contamination. Over thirty (30) sites were successfully defined and investigated. EPS was contracted by a Nebraska consultant firm to perform a soil and groundwater investigation at a manufacturing facility in Omaha, Nebraska. The investigation was conducted after groundwater was discovered contaminated during a previous Phase I. Two distinct groundwater plumes were discovered migrating from the facility during the investigation. With the aide of a soil conductivity profile, accurate sampling depths as well as the extent of the contamination were determined. EPS was contracted by another nationwide consultant firm, under the direct guidance of the U.S. Army Corps of Engineers, to conduct soil sampling at the Shilling Airforce Base in Salina, Kansas. Several hundred soil samples were collected adjacent to underground piping and petroleum pump houses. The project was successfully performed following the Corps' field sampling protocal.