OAR 808-002-0338: Landscape Drainage Systems

(1) "Landscape Drainage Systems," as used in ORS 671.520(1)(c), mean assemblies of piping and fittings that are used to drain lawns, trees, shrubs, and nursery stock and other landscape work. These assemblies of piping and fittings may drain to dry areas of the landscape, or features such as, but not limited to, above or below ground landscape watering cisterns, rain barrels, bioswales, other water features or sewers when authorized pursuant to state and local building codes. While "Landscape Drainage Systems" do not include systems used solely to drain roofs, foundations, footers, buildings, basements, or crawl spaces, the water produced by such features may incorporated into a landscape drainage system when authorized pursuant to state and local building codes. Landscape Drainage systems do not include systems used to drain agricultural products including nursery stock grown for sale or for pastures used for the grazing or raising of animals unless done in conjunction with a landscape job. (2) Installation. For the purposes of ORS 671.520(1)(c), to install landscape drainage systems includes, but is not limited to: (a) Trenching; (b) Installing drainage pipe or pipe fittings, rain barrels, above or below ground water cisterns, bioswales or other landscape water features all of which may be resourced directly from rain water runoff and natural seepage or, for example, through water sourced from systems draining roofs, foundations, footers, buildings, basements, crawl spaces; (c) Installing drainage filtering materials including filter fabric, gravel, or other natural or synthetic materials; or (d) Backfilling. (e) To install landscape drainage systems does not include installing drainage systems soley the protection or remediation of buildings, basements, foundations, footings, roofs, or crawl spaces. (3) Maintenance. As used in ORS 671.520(1)(c), “maintain” landscape drainage systems includes, but is not limited to: (a) Cleaning out pipe fittings, filtering materials, rain barrels, above or below ground water cisterns, bioswales, other landscape water features and the catch basin; or (b) Cleaning out the drain tiles. (4) Repair. As used in ORS 671.520(1)(c), "repair" landscape drainage systems includes, but is not limited to: (a) Patching; or (b) Replacement of piping, fittings and filtering material, filtering materials, drain tiles, rain barrels, above or below ground water cisterns, bioswales or other landscape water features.