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3. General legal information
European and German guidelines for infiltration/attenuation system operators
The person operating an infiltration/attenuation system, usually the owner, is bound by obligations which
are laid down in European and German guidelines. Any discharge, by infiltration/attenuation system
through layers of soil, of dangerous substances into the water cycle, especially the groundwater, is
prohibited by the European Directives 76/464/EEC and 80/68/EEC. Operators of infiltration/attenuation
systems are also bound to the German Federal Water Act (WHG) and in terms of the soil layers, the
Federal Soil Protection Act and Federal Soil Protection Ordinance.
Together with local guidelines, the operator is subject to the following obligations:
- Dangerous substances such as bleach, chemical stone, cleaning fluids etc. must not enter the
water cycle
- If there is a risk of dangerous substances entering the water cycle, appropriate countermeasures
(treatment with filter or swale) should be taken
- Should ensure that the infiltration/attenuation system is operated correctly at all times.
An information brochure detailing the methods required (oil separators, filters, silt traps, swale etc.) for
pre-treatment is usually available from the local authority or water board responsible. This will also contain
information about infiltration/attenuation not requiring a licence and the licence issued under water law for
infiltration/attenuation which may have to be obtained.
4. Technical data
Volumen (gross/net)
420 Liter/405 Liter
(111/107 US-gal.)
205 Liter/195 Liter
(54.2/51.5 US-gal.)
Dimensions (LxWxH)
800 x 800 x 660 mm
(31.44” x 31.44” x 25.98”)
800 x 800 x 320 mm
(31.44” x 31.44” x 12.6”)
Connections
8x DN 200/DN 150/DN 100 +
8 x DN 100
(8x 8‘/6‘4‘ + 8 4‘)
4 x DN 200/DN 150/DN 100 +
4 x DN 100
(4x 8‘/6‘/4‘ + 4x 4‘)
Weight 17 kg (37.5 lbs) 8 kg (17.6 lbs)
M
at
eri
al
100 % polypropylene (PP), recycled material
Load capacity
Short term
Long term
max. 100 kN/m² (14.5 psi)
max. 59 kN/m² (8.55 psi)