Drain lead

Besser JM, Brumbaugh WG, May TW, Schmitt CJ (2007) Biomonitoring of lead, zinc, and cadmium in streams draining lead-mining and non-mining areas. Southeast Missouri, USA. Environ Monit Assess 129 227... 

Several recovery scenarios were considered for remediation. Initially, construction of a narrow, permeable trench parallel to the canal appeared to be an appropriate interception system. The construction technique considered was use of a specially designed deep trenching unit. This type of trench would have included a tile drain leading to a single two-pump recovery well. However, a review of the subsurface site plans and interviews with long-term employees determined that an unknown number of buried pipes traverse the area intended for the trench construction. Disruption of refining operations and safety considerations resulted in rejection of this option. 

Portland Bureau of Water Works uses combined cWorine for disinfection. The tests conducted at Portland were similar to those at Tacoma, except in the following aspects Tests using all the chemicals, except sodium sulfite, were conducted at stoichiometric concentrations only a 100 ft hose, rather than a diffuser, was provided for mixing of chemicals with the water the released water traveled along a well-paved surface for 1000 ft prior to discharging into a storm drain leading to a storage pond. 

SEAL KRETE partnered with James River Basin Partnership (JRBP) and the City of Springfield (MO) Storm Water Services Division on Storm Drain Reveal, a project designed to raise aware-ness that soapy water, litter, yard waste, and other pollutants that end up in storm drains lead directly to rivers, creeks, and other waterways. Ten downtown storm drains in Springfield were transformed into public murals as reminders of their connection to waterways. 

Bored drains lead into shafts or tunnels or could be bored from ground level at the toe of the slide... 

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