Abstract: A plate is positioned across an inlet to a catch basin and a filter strainer is inserted through an opening through the plate and into the basin. A tertiary filter completely surrounds the strainer and is suspended below the plate. Surface water flows through a primary grate that covers the catch basin, through the strainer and through the tertiary filter. The tertiary filter comprising fibrous filter media retained in a non-woven mesh fabric enclosure and the filter media is selected according to the type of contaminants that are to be removed.

Abstract: A plate is positioned across an inlet to a catch basin and a filter strainer is inserted through an opening through the plate and into the basin. A tertiary filter completely surrounds the strainer and is suspended below the plate. Surface water flows through a primary grate that covers the catch basin, through the strainer and through the tertiary filter. The tertiary filter comprising fibrous filter media retained in a non-woven mesh fabric enclosure and the filter media is selected according to the type of contaminants that are to be removed.

Abstract: A subterranean irrigation system comprises a conduit that is attached to a soaker sheet having upper and lower permeable membranes that define a hollow interior there between. The hollow interior facilitates fluid flow there through while minimizing fluid flow resistance. The sheet typically includes a heat welded side seam along three sides of the upper and lower membranes to prevent the flow of water there through, wherein the remaining edge of the sheet is secured to the conduit. The sheet further includes a plurality of holes cut into the upper and lower membranes, wherein the hole pattern extends over the entire sheet. The holes allow the roots of grass or ground cover to grow through the soaker mat and simultaneously define channels of water flow around the holes between the upper and lower membranes.