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tidal influenced storm water sampling

tidal influenced storm water sampling

tidal influenced storm water sampling

(OP)
Flow weighted sampling of tide influenced storm water

Does anyone have experience with or equipment suggestions for sampling storm water during a rain event in storm lines that are often submerged in salt water? Due to the number of locations, the equipment needs to be automated to a great extent. Our approach is to monitor the conductivity to make sure there is no seawater intrusion and then check for a flow height/velocity increase over the base flow to trigger a sampler. The sampler would then begin taking a flow weighted composite sample or a series of discrete samples. The discrete samples would allow discarding any that showed salt-water contamination. Any suggestions are appreciated. mcollamo@ci.tacoma.wa.us

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