Storm water pretreatment chamber

A storm water pretreatment chamber comprising;

• a filter sidewall, wherein the filter sidewall comprise one or more plastic coated woven fiberglass screens, one or more rubber coated woven fiberglass screens, or one or more plastic and rubber coated woven fiberglass screens in an anodized aluminum frame;
• three water-impermeable sidewalls connected to the filter sidewall, wherein the three water-impermeable sidewalls each independently comprise one or more wood-plastic composite sheets;
• wherein the filter sidewall and three water-impermeable sidewalls form a debris and sediment trap,
• wherein the filter sidewall is in communication with the atmosphere and in position to release treated storm water from the debris and sediment trap into a storm water receiving feature;
• a chamber grate having a first surface and a second surface, wherein the second surface of the chamber grate is on or connected with the filter sidewall or the filter sidewall and the three water-impermeable sidewalls,
• wherein the chamber grate is in communication with the atmosphere and in position to receive untreated storm water and to collect one or more floating debris that does not pass through the chamber grate;
• three catch rails each independently connected to the filter sidewall or the three water-impermeable sidewalls to form an open top in the storm water pretreatment chamber,
• wherein the three catch rails are configured to provide an opening into the storm water pretreatment chamber opposite from the storm water receiving feature,
• wherein the three catch rails each independently catch the one or more floating debris,
• wherein the three catch rails are positioned above the level of a storm water conveyance;
• wherein the open top in the storm water pretreatment chamber is positioned below the level of the storm water conveyance;
• and
• four piers supporting the three water-impermeable sidewalls, the filter sidewall, a chamber grate, and three catch rails, or a combination thereof,
• wherein the storm water pretreatment chamber has an opening between the filter sidewall, the three catch rails, and the chamber grate that enables storm water to flow out of the debris and sediment trap and into the storm water receiving feature when the filter sidewall is clogged.

A method of treating storm water comprising;

• passing storm water through a storm water pretreatment chamber, wherein the storm water pretreatment chamber comprises:
• one or more filter sidewalls;
• one or more water-impermeable sidewalls each independently connected to the one or more filter sidewalls;
• wherein the one or more filter sidewalls and the one or more water-impermeable sidewalls form a debris and sediment trap,
• wherein the one or more filter sidewalls are each in communication with the atmosphere and in position to release treated storm water from the debris and sediment trap into one or more storm water receiving features;
• one or more chamber grates each having a first surface and a second surface, wherein each second surface of the one or more chamber grates is on or connected with the one or more filter sidewalls or the one or more filter sidewalls and the one or more water-impermeable sidewalls,
• wherein the one or more chamber grates are in communication with the atmosphere and in position to receive untreated storm water and to collect one or more floating debris that does not pass through the one or more chamber grates;
• and
• one or more catch rails each independently connected to the one or more filter sidewalls or the one or more water-impermeable sidewalls to form an open top in the storm water pretreatment chamber,
• wherein the one or more catch rails are configured to provide one or more openings directed away from the one or more storm water receiving features,
• wherein the one or more catch rails each independently catch the one or more floating debris,
• wherein the one or more catch rails are positioned above a level of one or more storm water conveyances;
• wherein the open top in the storm water pretreatment chamber is positioned below the level of the one or more storm water conveyances,
• wherein the storm water pretreatment chamber has an opening between the one or more filter sidewalls, the one or more catch rails, and the one or more chamber grates that enables storm water to flow out of the debris and sediment trap and into the one or more storm water receiving features when the one or more filter sidewalls is clogged;
• and
• separating the floating debris and the sediment.