Project Descriptions:

• Enhanced Bioremediation Projects - 1
  
• Subsurface Investigations - 2
  
• Drilling / Soil Vapor Projects - 1
  
• Drilling / Soil Vapor Projects - 2
  
• Waste Water Treatment Technologies

Enhanced Bioremediation Projects - 1

• PROJECT: Phase II Subsurface Investigation - A Phase II Subsurface Investigation was perfromed to determine the location of the source of PCE, TCE, motor oil, and diesel detected in one of three monitor wells on-site. A regulatory approved workplan and health and safety plan were developed. Twenty 1.5 inch diameter borings were drilled using continuous core drilling to a maximum depth of 11 feet below ground surface. This method of drilling allowed for a detailed characterization of the subsurface conditions.
  
  Location: Rohnert Park, California
  Client: Boise Cascade
  
  RESULTS: The drilling method saved the client an estimated $8,640 in disposal fees.

• PROJECT: Phase II Environmental Subsurface Investigation - As part of a corporate divestment, a Phase II Environmental Assessment was performed at an office building in Mountain View, California. Subsurface drilling using the continuous coring tool was performed. The four boreholes were drilled to a maximum depth of 19 feet below ground surface. Soil and groundwater samples were collected and analyzed for solvents and gasoline. Cost control was performed by computer accounting and a weekly job summary.
  
  Location: Mountain View, California
  Client: Consultant
  
  RESULTS: The client saved approximately $7,655 over the cost of conventional well installations and soil disposal.

• PROJECT: Subsurface Investigation in Gas Field - The land owner requested a visual survey and subsurface investigation of shallow soil conditions in a gas field. Fifteen well sites and two tank farms were inspected. Twenty soil borings were drilled to evaluate subsurface conditions. Water samples were collected in two well cellars. Contaminants included crude oil, motor oil and lubricants. The visual survey and laboratory analyses were used to develop a soil remediation plan and a more effective operations and maintenance program.
  
  Location: Sacramento Area, California
  Client: Gas Property Owner
  
  RESULTS: The written report was used for settlement purposes in favor of the client, saving the client hundreds of thousands of dollars.

• PROJECT: Subsurface Characterization and Well Installation - The drilling of ten soil borings, converting seven borings into groundwater monitoring wells was performed at a bulk facility. The vertical and lateral extent of gasoline, diesel, and metals contamination was delineated on the subject property, an active bulk storage facility. Cross sections, well logs and iso-concentration maps were used to define the contamination on the site. Significant regulatory and client contact was performed on this site. Ultimately, as pump and treat system was installed for hydraulic control and free product removal.
  
  Location: San Diego
  Client: Consulting Firm
  
  RESULTS: The placement of the wells allowed for accurate assessment of the vertical and lateral extent of hydrocarbon contamination in the subsurface, saving the client tens of thousands of dollars in additional subsurface investigations.

• PROJECT: Groundwater Monitor Well Installation - A Phase II Subsurface Investigation was perfromed by drilling seven soil borings on-site. Three of the wells were subsequently converted into groundwater monitoring wells for the detection of free phase liquid hydrocarbons and dissolved constituents in groundwater.
  
  Location: Stockton, California
  Client: Consultant
  
  RESULTS: The placement of the wells allowed for accurate assessment of the subsurface conditions, saving the client tens of thousands of dollars in additional subsurface investigations.

• PROJECT: Subsurface Investigation and Monitor Well Installation - A subsurface investigation using direct penetration technology (DPT) was performed for a bank as the initial phase of the subsurface investigation. Based on the direct penetration technology boring results, three groundwater monitoring wells were installed that were placed in appropriate locations: two were downgradient and one was placed in the upgradient location. All three wells were placed in zero-contamination areas. The wells were developed, surveyed and sampled. The site was closed.
  
  Location: Berkeley, California
  Client: Major bank
  
  RESULTS: After one year of quarterly monitoring, site closure was obtained.

• PROJECT: Subsurface Investigation for Lease Transfer - As part of negotiation for a new lease, a subsurface investigation was performed. The previous tenant had operated a vehicle and equipment rental and repair business on the property. After completing a Phase I Environmental Assessment, a subsurface investigation was performed to document subsurface conditions. Four groundwater samples and twelve soil samples were collected using direct penetration technology (DPT) drilling. Based on the chemical analyses, it appeared that an offsite source of gasoline had impacted the groundwater beneath the property. Minor concentrations of oil and grease were detected in the soils. The results helped to establish pre-lease conditions for the owner and new tenant, minimizing potential conflict in the future. The responsible party was notified as to the extent of the gasoline contamination.
  
  Location: Santa Rosa, California
  Client: Equipment Company
  
  RESULTS: The subsurface investigation was completed and the lease transfer was accomplished.

• Project: Subsurface Investigation at Resins Plant - Angle drilling and limited access drilling services were performed for in a resins plant in northern California. The site contained phenols at significant concentrations. Several borings were drilled. Several soil samples were collected in 4 foot long, 1.25 inch diameter stainless steel samplers with inner sleeves. All holes were grouted with neat cement. No cuttings were generated. Workers were protected in Level C personal protective equipment and air monitoring was performed.
  
  Location: Northern California
  Client: Consultant
  
  RESULTS: Soil cuttings were not generated and the client saved $1,900 in soil disposal fees. The project was performed safely.

• Project: Soil Vapor Survey at Airport - A soil vapor survey along 1,000 foot pipeline containing aviation fuel at the San Francisco International Airport was performed. The survey included twenty-five points. Data from the vapor survey was reported to the client using iso-concentration maps. A detailed report with the field procedures was prepared for the client. All vapor holes were grouted with neat cement. No cuttings were generated.
  
  Location: San Francisco, California
  Client: Consultant
  
  RESULTS: The soil vapor survey was completed in the field in half the time and under budget.

• PROJECT: Soil Sampling in Lagoon - A limited access, continuous core drilling program in an abandoned landfill was designed and supervised. The landfill was located in an environmentally sensitive area located in the Golden Gate National Recreation Area. Seventy-seven soil borings in an inaccessible area in the lagoon to delineate the vertical and lateral extent of metals and hydrocarbon contaminated soils. Several soil borings were drilled below low tide. Regulatory interactions included numerous discussions with the Coastal Commission and the San Francisco Bay Office of the RWQCB.
  
  Location: Bolinas Lagoon, California
  Client: Contractor
  
  RESULTS: The client obtained high quality soil samples. Site closure was granted based on the work performed.

• PROJECT: Subsurface Investigation and Drilling - A Phase II Subsurface Investigation was perfromed to determine the location of the source of solvents detected in one of three monitor wells on-site. A regulatory approved workplan and health and safety plan were developed. Twenty 1.5 inch diameter borings were drilled using continuous core drilling to a maximum depth of 11 feet below ground surface. The project was negotiated with the North Coast Regional Office of the RWQCB.
  
  Location: Rohnert Park, California
  Client: Fortune 500 Firm
  
  RESULTS: Continuous core drilling allowed for a detailed characterization of the soil conditions.

• PROJECT: Sampling: 400 Soil Samples - A soil drilling and sampling program on a 5,000 cubic foot soil pile at a Caltrans yard was performed. More than 100 soil borings were drilled and supervised to a maximum of 21 feet below ground surface. A total of more than 1,800 feet, were drilled obtaining 400 discrete soil samples in five days.
  
  Location: Vallejo, California
  Client: Consulting Company
  
  RESULTS: The soil samples were collected for the client under difficult drilling conditions.

• PROJECT: Continuous Soil Sampling in Wetlands - A limited access, continuous core drilling program was designed in a wetlands. The driller continuously cored 5 soil borings to a maximum of 18 feet below ground surface. The samples were drilled through peat and Bay Mud to evaluate the presence of metal contaminated soils.
  
  Location: Point Pinole, California
  Client: Consulting Company
  
  RESULTS: The soil samples were obtained for the client under difficult drilling conditions in a sensitive environment.

• PROJECT: Limited Access Well Installation - Two 2-inch diameter monitoring wells were installed beneath a ten foot building overhang at a car stereo installation store. The borings were drilled with a Mobile Minuteman Drill Rig to a maximum of 23 feet below ground surface. After drilling was completed, the borings were converted into 2-inch diameter monitoring wells. Site closure was granted by San Mateo County Environmental Health Department in 1995.
  
  Location: Burlingame, California
  Client: Investor
  
  RESULTS: The drilling was completed on time and on budget and site closure was granted.

• PROJECT: Soil Vapor Survey - A soil vapor survey was performed at a Hamilton Air Force Base, which was slated for closure. Approximately 40 holes were drilled to about 10 feet below ground surface. The drilling proceeded through up to 16 inches of concrete through airport runways. Soil vapor samples were collected using SUMMA canisters.
  
  Location: Novato, California
  Client: Consulting firm
  
  RESULTS: The job was completed on time in a professional manner.

• CHEMICAL OXIDATION: OZONE TECHNOLOGIES - EBS offers a wide range of ozone generation systems for both air, groundwater and waste water treatment using UV and high frequency Corona Discharge Technologies.
  
  PROPERTIES: Ozone is highly soluble in water. Ozone lasts about 20-minutes in water and less than a minute in air. EBS designs above ground ozone systems for treatment of water waste streams and groundwater treatment. EBS Ozone systems are also used for in-situ applications. All ozone must be generated on-site.
  
  DESCRIPTION: Ozone is an unstable gas. The energy stored to create ozone (O3) wants to react by forcing the extra oxygen atom on an organic molecule such as a petroleum hydrocarbons, chlorinated solvents, BTEX compounds, MTBE and other VOCs. The end products of ozone oxidation are carbon dioxide and water. EBS offers in-situ and ex-situ ozone and advanced oxidation equipment for a variety of contaminants.

• THERMAL OXIDATION: OXIDATION TECHNOLOGIES - EBS offers thermal oxidizers to destroy organic compounds in liquid wastestreams. The evaporation process completely removes the water from the solids. All that remains is a small amount on non-hazardous ash.
  
  PROPERTIES: Thermal Oxidation Evaporators provide the answer to liquid wastestreams. The evaporation process completely removes the water from the solids.
  
  DESCRIPTION: Thermal oxidation provides either low termperature vaporization or complete high temperature oxidation. The contaminants are reduced to an oxidized powder (ash) for easy disposal. Cerramic construction of the EBS unit allows for years of corrosion-free thermal oxidation operation.

The Thermo-Oxidizer is controlled by a combination PLC and UL/FM approved microprocessor based Flame Safeguard Controller. Visual confirmation of the Thermo-Oxidizer status is provided by LCD displays, indicator lights, and digital temperature displays. The 1,250,000 BTU stainless steel burner nozzle provides the energy necessary for the waste combustion. A Teflon air diaphragm pump pressurizes the wastewater for injection into the air atomization nozzles. These nozzles incorporate a PLC controlled pneumatic cleanout system. The waste stream is thereby atomized directly into the combustion chamber where it is completely oxidized. The TO 150 incorporates an outer shell which acts as a preheat plenum reducing thermal loss and increasing efficiency.

EBS is a supplier of Thermo Oxidizers manufactured by RGF Environmental. Dimensions: 9'8"L x 8'D x 10'H Electrical: 220VAC, 20 Amp, 1 or 3 phase Weight (Approx): 20,000 lbs. Disposal Rate: Up to 150 gallons per hour.

• PROJECT: Water Sampling of 10 Monitor Wells - Monitor well purging and sampling was performed of ten monitoring wells at a fleet maintenance facility in the San Francisco Bay Area. Monitor well depths averaged 25 feet below ground surface. Documentation of monitoring well sampling data was included in the certified report. The contaminants included diesel and gasoline.
  
  Location: Burlingame, California
  Client: Rental Car Company
  
  RESULTS: Reduced monitoring requirements were negotiated with the regulator, lowering costs. High quality sampling and reporting allowed the client to assess clean-up options.

• PROJECT: Site Closure and Sampling of 3 Monitor Wells - Two underground storage tanks were removed from the property in 1991. A monitoring well purging and sampling was performed in three 25-foot deep monitoring wells at a warehouse in Oakland, California. Documentation of monitoring well sampling was included in the written report. The contaminants included diesel and gasoline.
  
  Location: Oakland, California
  Client: Major Bank
  
  RESULTS: Site closure was granted April, 1994 after the wells were sampled for one year.

• PROJECT: Water Sampling of 39 Monitor Wells: EPA Site - Quarterly data collection and sampling for 39 monitor wells at the EPA ARCSWEST Frontier Fertilizer Project was performed. The contaminants included a variety of pesticides.
  
  Location: Davis, California
  Client: Contracting firm
  
  RESULTS: The firm's responsive service with rigorous schedules helped with project success.