Abstract: Mixed media tube or sock filters of variable length with mixed media designed to remove heavy metals and hydrocarbon contaminants, inter alia. The filters of the present invention can be used to control sediment in run-off from a construction site, as drain covers, or as retaining members for lawns or planting areas. A number of or a continuous length of such tube filters can be joined together to form assemblies which are useful for protecting a drain, series of drains, or other water mass, for example a pond or riverbank. Such tube filters can be synergistically joined with other environmental protection approaches, including but not limited to wattles such as ERTEC ProWattle https://ertecsystems.com/products/perimeter-sediment-control-four-types/prowattle-perimeter-control/, top guards such as Top Guard Drain Inlet Protection https://ertecsystems.com/products/top-guard-drain-inlet-protection/, curb guards such as Curb Inlet Guard https://ertecsystems.

Abstract: The movement of small vertebrates, e.g. endangered or threatened species, into and/or out of defined areas, e.g. construction sites, is controlled by use of a barrier fence which includes an apertured polymeric sheet. The polymeric sheet includes an upper portion which extends upwards from the ground and a lower portion which is buried in the ground. The polymeric sheet is formed by first and second sets of polymeric strands which are bonded to each other and are spaced apart from each other, thus providing apertures. The height and depth of the barrier fence and the size of the apertures prevent the small vertebrates from crossing the fence, and the apertures permit wind and water flow through the barrier fence.