8 results found

• Applying for or renewing an approval as a septic tank operator
  Do you offer septic tank services in Wallonia? Do you have your septic tank operator approval? You must be officially recognised by the SPW ARNE (Agriculture, Natural Resources and…
• Apply for approval as a laboratory to perform PLN soil analyses
  In Wallonia, the quantity of Potentially Leachable Nitrogen (PLN) in our soils is tested each year by a thousand farmers. You need to be a laboratory approved by the Walloon administration to…