Plastic underground drainage, infiltration and reticulation containers and plastics field disposal units for the retention and dispersal of waste water, storm water and rainwater; porous or perforated plastic underground modular containers, namely, perforated and non-perforated plastics tanks and tank modules for the retention and dispersal of waste water, storm water and rainwater; porous or perforated plastic drainage pipes; plastics drainage cells; geofabrics for use in the treatment of wa...