The proposed standard will outline performance and durability testing for stormwater filters.
Aug 15, 2025
ASTM International is developing a proposed standard (WK84523) that will describe hydraulic testing of filter elements. It includes hydraulic testing, performance testing, loading capacities, and scour testing of entire filtration systems.
WK84523 is being developed by the lab evaluation subcommittee (E64.01) within ASTM’s stormwater control measures committee (E64).
According to ASTM member Adham El-sherbeini, many of the pollutants found in rivers, lakes, and oceans are carried there by stormwater runoff. El-sherbeini notes that “stormwater runoff is created in our cities as we turn pervious, undeveloped earth into streets, parking lots, and other impervious surfaces.”
“Stormwater filters are placed in storm drain systems between the impervious surfaces and the water bodies they drain to as a measure to remove those pollutants and protect sensitive water bodies and ecosystems,” says El-sherbeini, director of engineering at Hydroworks, LLC. “This standard provides a way to test those filters and evaluate efficiency at removing pollutants, hydraulic conductivity, how much sediment they can capture before they need maintenance, and how likely they are to discharge captured pollutants during intense rainfall events.”
ASTM welcomes participation in the development of its standards. Become a member at JOIN ASTM.
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