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Best management practices (BMPs) is a term used in the United States and Canada to describe a type of water pollution control. Historically the term has referred to auxiliary pollution controls in the fields of industrial wastewater control and municipal sewage control, while in stormwater management (both urban and rural) and wetland ...
BMPs are state-of-the-art methods to treat NPS pollution. There is no shortage of BMPs to reduce NPS pollution. For agriculture, examples of BMPs include: conservation easements, cover crops, drainage management, grid sampling, manure injection, manure staging, reduced tillage practices, rotational grazing, and two stage ditches. [71]
BMPs can be implemented for both agricultural and urban runoff, and can also be either structural or nonstructural methods. Federal agencies, including EPA and the Natural Resources Conservation Service, have approved and provided a list of commonly used BMPs for the many different categories of nonpoint source pollution. [47]
Infiltration trench, is a type of best management practice (BMP) that is used to manage stormwater runoff, prevent flooding and downstream erosion, and improve water quality in an adjacent river, stream, lake or bay. It is a shallow excavated trench filled with gravel or crushed stone that is designed to infiltrate stormwater though permeable ...
It shows the field (or internal) and the main (or external) systems. [2] The function of the field drainage system is to control the water table, whereas the function of the main drainage system is to collect, transport, and dispose of the water through an outfall or outlet. In some instances one makes an additional distinction between ...
The overall goal is to provide the necessary stormwater drainage infrastructure for a 12,000-acre (49 km 2) region on the southern end of the island while at the same time preserving the last freshwater wetlands in New York City. The bluebelt uses a series of carefully placed BMPs at the storm sewer/wetland interface to reduce flooding and ...
An example of urban stormwater creating a sinkhole collapse is the February 25, 2002 Dishman Lane collapse in Bowling Green, Kentucky where a sinkhole suddenly dropped the road under four traveling vehicles. The nine-month repair of the Dishman Lane collapse cost a million dollars but there remains the potential for future problems.
Alternative terminology includes stormwater best management practices, source controls, and low impact development (LID) practices. [ 18 ] Green infrastructure concepts originated in mid-1980s proposals for best management practices that would achieve more holistic stormwater quantity management goals for runoff volume reduction, erosion ...