Small water retention reservoirs


Using small water retention reservoirs is a concept that is becoming more and more important in the context of highly urbanized areas. The activities carried out as part of “small water retention” are an antidote to many problems that modern cities grapple with. Urban floods, increasing sewage system operations costs, lower sewage system capacity, surface water pollution, and breaking the natural water cycle, are only some of the worrying phenomena that are gaining relevance. The reason for this relevance is quite prosaic, while the losses incurred by cities and the environment are complex.

What is the way of rainwater in cities?

Rainwater in cities has nowhere to gather, and so quickly flows down the concrete surfaces to the wells, taking all kinds of contaminants with it. In the next step, dirty water feeds into various types of watercourses, to rivers, and finally – the sea. The water gathers quickly (especially during heavy rainfall) and disappears quickly, and if there aren’t enough wells, it floods the streets and sidewalks. Therefore, the idea is to extend the time of rainwater circulates through cities, and simultaneously, make use of it.

We implement all aspects of small water retention projects in cities.

We design and construct various types of water reservoirs, including local retention reservoirs, and entire retention and filtration systems, which not only store excess rainwater, but also treat it, enabling its use. Our products and services in the field of small water retention includes:


  • building the infiltration basins and absorption well installations responsible for draining rainwater from the roofs of buildings;
  • creating green roofs for housing developments;
  • construction of treatment reservoirs, which utilize natural methods and then replenish groundwater (infiltration and sedimentation reservoirs);
  • creation of wetlands and bioretention areas, i.e. biologically active areas which have been modified to contain rainwater runoff;
  • construction of wetland treatment systems;
  • design and construction of local wet ponds and dry ponds, which are supplied with water only in the rainy season;
  • construction of storage reservoirs which are filtered through the use of natural mineral and plant zones;
  • design and construction of basins, collection reservoirs, and drainage ditches.

Why is it worth investing in small water retention solutions?

  • Relief for municipal sewage systems – less sewage, and lower operational and energy costs for sewage systems;
  • ncreased safety – by preventing floods, water pollution, and droughts, (i.e. preventing the process of turning areas into steppe type biomes);
  • Reduction of water losses – using filtered rainwater for the irrigation of lawns and gardens, and for replenishing groundwater through the use of dry water reservoirs;
  • Creation of aquatic ecosystems – retention reservoirs act as habitats for aquatic fauna and flora;
  • Making public spaces more attractive – decorative ponds and large ponds in housing developments, squares, and parks, can fulfill many recreational and aesthetic functions while still fulfilling their role as retention reservoirs.

Retainment reservoirs – GOOD TO KNOW:

we offer advice on selecting the most profitable solutions, those tailored to investors’ expectations and the possibilities of the site;
we have extensive experience and modern equipment, which allows us to realize even the most demanding projects;
we provide the proper filters, mineral mixtures, and natural care products, which ensure the ongoing cleanliness of retention reservoirs.

We are happy to answer all your questions regarding building small water retention facilities. Contact us.