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US 7,645,390 B1Granted
Stormwater pretreatment and disposal system and method
AssigneeQuikTrip Corporation
InventorShawn McClanahan
Life of this patent
Estimating the term…
Abstract
A stormwater drainage system capable of collecting, pretreating and disposing of the stormwater runoff into a dry well, further capable of stopping the flow of stormwater into the dry well in the event hydrocarbons or other contaminants are present in the stormwater. The system is also capable of isolating stagnant water in the system to prevent the infestation of mosquito larvae.
Claims15
A method for disposing of storm water comprising the steps of:
- collecting storm water in a retention area;
- passing the collected storm water from said retention area to a collection vault, said collection vault in fluid communication with said retention area;
- separating at least one lighter than water contaminant and at least one heavier than water sediment from said collected storm water by passing said collected storm water through an oil/water separator, said oil/water separator in fluid communication with said collection vault;
- following separation of said lighter than water contaminant and said sediment from said storm water, passing said storm water into a drywell, said drywell in fluid communication with said oil/water separator, wherein said lighter than water contaminant is a hydrocarbon contaminant;
- and
- monitoring said storm water in said retention area for the presence of hydrocarbon contaminants, upon detection of hydrocarbon contaminants blocking flow of said storm water from said oil/water separator to said drywell.
3 more elements
A method for disposing of storm water comprising the steps of:
- collecting storm water in a retention area;
- monitoring said retention area for the presence of said collected storm water;
- opening a valve when storm water is detected in the retention area, said valve providing fluid communication between an oil/water separator and a drywell;
- communicating the collected storm water from said retention area to a collection vault;
- communicating said storm water from said collection vault to said oil/water separator, said oil/water separator in fluid communication with said collection vault;
- communicating said storm water from said oil/water separator to said drywell, said drywell in fluid communication with said oil/water separator;
- separating at least one lighter than water contaminant and at least one heavier than water sediment from said collected storm water, wherein said lighter than water contaminant is a hydrocarbon contaminant;
- monitoring the storm water in the retention area for the presence of hydrocarbon contaminants using a sensor probe;
- and
- closing said valve when the hydrocarbon contaminants are detected.
7 more elements
Dependencies are inferred from the claim text.