The subject of the contract is expert services for the determination of causes, extended hazard assessment (detailed investigation) and remediation investigation of the contaminated site and pollutant situation in the northern dike of the Emscher in the area of the ecological focus (ÖSP) Holtener Bruch (Oberhau-sen) as well as in the vicinity of the adjacent premises of the OQ plant Ruhrchemie with regard to possible effects on groundwater and water quality as well as on the ÖSP Holtener Bruch.
Performances:
• Item 1 Basic determination and creation of an investigation concept
• Item 2 Field investigations for the collection of current/supplementary soil and groundwater data
• Item 3 Soil mechanics laboratory tests
• Item 4 Chemical analyses of soil, water and groundwater samples
• Pos. 5 site visits / meetings
• Pos. 6 hourly services
• Item 7 Updating the groundwater model
• Item 8 Expert services / office work
• Item 9 Optional services-

LOT-0000
Extended Hazard Assessment - Detailed investigation and remediation investigation in Oberhausen Holten in the area of Holtener Bruch and OQ Ruhrchemie plant.
Expert services of the determination of causes, extended risk assessment, detailed investigation and remediation of the contaminated site and pollutant situation in the northern dike of the Emscher in the area of the ecological focus Holtener Bruch as well as in the vicinity of the adjacent premises of the Ruhrchemie plant with regard to possible effects on groundwater and water quality as well as on the ecological focus Holtener Bruch