Stormwater runoff contamination

Flows of contaminated river water Flows of contaminated groundwater Sheet flow of polluted stormwater runoff Deposition of aeolian particles and gas dissolution... 

PCDD/Fs are transported to the ocean primarily via effluent discharges, stormwater runoff and by wet and dry deposition of aerosols. Because of their high molecular weight and low volatiUty most PCDD/F contamination is local, with adsorption onto sediments being the primary sink, although transport to the Arctic is occurring. 

Hatch, A.C. and Burton Jr, G.A. (1999) Sediment toxicity and stormwater runoff in a contaminated receiving system consideration of different bioassays in the laboratory and field, Chemosphere 39 (6), 1001-1017. 

Drill site construction and rigging-up A preplanning opportunity for a drilling operation is in the construction of the location and roads. The drilling location and the associated roads should be planned so that they are constructed such that stormwater runoff is diverted away from the location, and that the location s stormwater runoff, which may be contaminated, is collected. Construction of the location and roads should be planned so that erosion is minimized. These steps will help minimize the volume of contaminated stormwater runoff to be managed [59,63-66]. 

AREA A. This area represents impact from coastal residential development, extending into the mouth of the Peace River and upper Charlotte Harbor. Primary sources of contamination are expected to be stormwater runoff (automobile related petroleum), municipal sewage and small boat marina activities. Surface sediment was collected from fourteen sites, water from eight sites and oysters from three sites, representing conditions in the development canals at Port Charlotte across the mouth of the Peace River and into the canals of Punta Gorda. 

The court based its decision on the fact that the new rule exempted nmoff contaminate with sediment, while the CWA does not exempt such runoff. As a result of the court s decision, stormwater discharges contaminated with sediment resulting in a water quality violation require permit coverage under the NPDES stormwater permitting program. Although the USEPA... 

Urban runoff will contain both chemical and microbial contaminants, the range and concentrations of which can vary considerably over short periods of time. As the area of impermeable surfaces increases, the problem of stormwater collection and disposal becomes more significant. The major sources of contamination of stormwater include substances deposited on impermeable surfaces from ... 

Groundwater contamination is most likely where stormwater is discharged into soakaways (e.g. pits filled with rubble to speed transfer to groundwater) or infiltration areas, and where the aquifer is vulnerable. However, in many cases, stormwater is collected in the drainage system, which may discharge into sewers. Stormwater or (when sewer capacity is exceeded) a combination of stormwater and diluted raw sewage may be discharged into surface waters, Box 6,3 summarizes the main risk factors associated with urban runoff,... 

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