Storm water systems

EXHIBIT 13 10 Oily Water and Storm Water System... 

The type of system required (e.g., separate or combined oily and storm water system). 

Federal regulations (40 CFR 261) classify acrylonitrile as a hazardous waste and it is Hsted as Hazardous Waste Number U009. Disposal must be in accordance with federal (40 CFR 262, 263, 264), state, and local regulations only at properly permitted faciUties. It is Hsted as a toxic pollutant (40 CFR 122.21) and introduction into process streams, storm water, or waste water systems is in violation of federal law. Strict guidelines exist for clean-up and notification of leaks and spills. Federal notification regulations require that spills or leaks in excess of 100 lb (45.5 kg) be reported to the National Response Center. Substantial criminal and civil penalties can result from failure to report such discharges into the environment. 

A problem of many sewage treatment works in the UK is that urban drainage is included with domestic sewage in the sewage collection systems. The resulting storm-water discharges, at times of heavy rainfall, lead to continuing phosphorus export to the river. Correction of this problem requires considerable investment in separate systems. 

Tanks and Appurtenances Used to Contain Hazard Substances Including Aboveground Tanks, Underground Tanks, Piping and Appurtenances, and Storm Water Management Systems Associated witb Containment Systems... 

Runoff from areas where hazardous substances are or were used into storm water drainage systems... 

WAS Waste activated sludge, mg/L. The excess growth of microorganisms which must be removed from the process to keep the biological system in balance. Wastewater The used water and solids from a community that flow to a treatment plant. Storm water, surface water, and groundwater infiltration also may be included in the wastewater that enters a wastewater treatment plant. The term "sewage" usually refers to household wastes, but this word is being replaced by the term "wastewater". 

No liquid waste can be disposed of directly into the environment or into a storm sewer system. Unless collected and handed over to a waste disposal company, it goes into the sanitary sewer. There are specific rules concerning the quality of what may be disposed of in this manner. Materials that are routinely sent to the sewer from a home may not be permissible from a commercial source. Normally accepted waste water rules are often made more restrictive by local ordinance. 

Wastewaters may be collected in separate drainage systems (for process, sanitary, and storm water) althongh industrial and stormwater systems may in some cases be combined. In addition, ballast water from bulk crude tankers may be pnmped to receiving facilities at the refinery site prior to removal of floating oil in an interceptor and treatment as for other wastewater streams. 

High density PE (HDPE) is normally used for high-pressure pipes up to 20 bar for water and up to 7 bar for gas. Low density PE is used for lower pressure applications mainly in agriculture. Examples of applications are potable water up to 20 bar, gas up to 7 bar, surface water drainage systems, storm water drainage, cable ducting. 

Process, chemical, or oily water sewer system branch and lateral lines should enter main lines through vapor-sealed and vented manholes. Branches and laterals in clean or storm water drainage systems may enter main lines without vapor seals if liquid-sealed catch basins are used on the inlets to these branches and laterals. 

Cresols are widely distributed natural compounds. As discussed above, they are formed as metabolites of microbial activity and are excreted in the urine of mammals (Fiege and Bayer 1987) and humans (Needham et al. 1984). Cresols from human urine are probably biodegraded at municipal sewage treatment facilities prior to release to ambient waters. However, for combined septic and storm sewage systems, cresols may be released to surface waters during periods of precipitation when influent volumes exceed treatment plant capacities. Also, in rural and suburban areas where septic tanks are used (o- and m-cresols can resist anaerobic digestion), human excrement may be a nonpoint source release of cresols to groundwater. 

The SBP membrane filtration system concentrates contaminants and reduces the volume of contaminated groundwater, surface water, storm water, landfill leachates, and industrial process water. This hyperfiltration system consists of stainless steel tubes coated with a multilayered membrane, which is formed in-place using proprietary chemicals. The membrane filtration system can be used with an SBP bioremediation system or another technology as part of a treatment train. 

Storm Water Management Systems Polyethylene Drainage Products Pipe Fittings... 

Retention Detention Systems Septic Above-Ground Tanks Meter Pits, Sumps Pumps Geotextiles Geosynthetics Storm Water Quality Units... 

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