What is the fine-grained topic of the following text: The Geoblock Permeable Paving System was selected as it allowed for the use of sod that fit with the landscape design, solved the safety issue with H20 load support (36.3 tonne), and eliminated any environmental issues by allowing storm water to infiltrate back into the landscape; significantly reducing storm water run-off. Only return the topic.
Geoblock Permeable Paving System