We were awarded the KIWA BRL-K240 certificate for our filter sand. Our filter sand is certified for use in drinking water production. This sand, which is extracted from natural deposits, has been thoroughly tested and assessed on toxicological, organoleptic and microbiological aspects.

Quality control
Quality control is one of our central features. Sand and gravel is extracted from natural sources. Our internal quality control ensures continuous and accurate monitoring of processes.

We have assigned KIWA Netherlands to certify the sand and gravel we supply to the market. The target is to supply our customers with sand and gravel which meets the stringent requirements set for materials used for drinking water production.

We possess a number of certificates to ensure a high quality product:

• KIWA product certificate, sand and gravel for drinking water production
• ISO 9001:2015 certification
• ISA Sport certification for infill sand (M4-a, M4-b)

All our certificates are available upon request.