*2.2. The Hydraulic Properties and Other Physicochemical Characterizations Tests*

The hydraulic property tests include a saturated moisture content test (to evaluate stormwater retention volume) and a permeability coefficient test (to evaluate hydraulic conductivity).


• TP (total phosphorus content) of materials was measured after strong acid digestion and analyzed by ICP-OES (Thermo Fisher Scientific, Waltham, MA, USA).
