Flint Michigan

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Mayor Dr. Karen Weaver https://www.cityofflint.com/mayors-bio

Reverse Osmosis https://www.google.com/#q=reverse+osmosis

Pure Water Gazette

How Does Lead Get Into Drinking Water? https://www.espwaterproducts.com/how-to-remove-lead-from-water

How to make a water filtration system ​https://www.youtube.com/results?search_query=how+to+make+a+water+filtration+system

Sawyer Products, Inc. https://sawyer.com

Berkey 
http://www.berkeyfilters.com/berkey-water-filters
​https://www.youtube.com/results?search_query=berkey