Certification
TTD is regularly certified by various supervisory organisations. We carry out these quality inspections in the interest of our customers’ safety.
You can rely on the expertise of TTD.
You are advised by:
| A specialist waste disposal company in accordance with § 52 KrW-/AbfG | ![]() |
| A specialist company in accordance with § 19 l of the Water Management Act (WHG) | ![]() |
| Recognised specialist company in the site drainage sector | ![]() |



