Rohr 300 m, 50 m and 25 m shooting ranges, Opfikon Preliminary assessment of contaminated site and re-mediation project

The project

Location: Opfikon (ZH)
Customer: The municipality of Opfikon (ZH)
Phases: Preliminary and detailed assessments of the contaminated sites, remediation project, building application and submission
Duration: 2016-2019
Building costs: approx. CHF 1,500,000


The Rohr shooting range includes three backstops measuring 300 m, 50 m and 25 m with 46 targets in total. The results of the preliminary assessment revealed that all three backstops would require remediation to protect the groundwater, due to the proximity of the range to the water table. We were therefore contracted by the municipality of Opfikon to prepare a project to decontaminate the three backstops. In 2019, consent was given for the construction and clearing work and the tendering process for the remediation works took place. The remediation work is scheduled to take place in autumn 2020.


Our services

  • Conducting historical research and technical investigations to assess the protected groundwater and surface water
  • Planning and conducting a detailed assessment of the contaminated site with detailed mapping of the soil contamination in all three backstops
  • Preparing a development and construction installation plan having regard to a range of environmental regulations (soil protection, forestry and surface water protection, etc.)
  • Preparing a remediation project for the contaminated site, including the recultivation of agricultural soil
  • Formulating a construction and clearance application, planning and preparing the requirements and measures resulting from approvals
  • Compiling submissions documentation and the public contamination remediation tender for all three backstops


  • The protected surface water and groundwater had to be investigated and assessed because there was direct drainage into the River Glatt
  • It was necessary to temporarily clear a small area of forest in order to remediate the site
  • Large shooting range with three backstops and 46 targets in total
  • Construction project in an archaeological zone with the associated requirements

Project manager:

Melanie Tschopp-Vögtli Co-divisional manager: Contaminated sites
MSc Environmental Engineering, ETH (Federal Institute of Technology) +41 44 839 47 71 More