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<p>[QUOTE=&quot;RickieB, post: 501443, member: 2486&quot;]Depending on where that coin was subjected to water (State, Town, Counrty) it is very possible. </p><p><br /></p><p>Water treatment prior to distibution for consumption goes through all kinds of treatment such as chlorine gas NH4 gas, Copper sulfate applications all in order to rid it of microbial pests as cryospyridium and Giardia spores.</p><p><br /></p><p><br /></p><p>The pH of the water changes drastically with each treatment and each method that is used for sanitation. The end result for distribution should be a pH range of 6.9 to 7.1 pH units.</p><p><br /></p><p>The distribution method is most always pipelines and who knows what materials some of the pipes are made of! I did a study on this for Pharmaceutical&nbsp; Grade Water from Town distributed Raw water intake and discoverd a wide range of cleaning routines and distribution methods including wooden pipelines from very early distribution systems. Just imagine the leaching that can occur from underground and the mineral content of the Earth in your region of the Country and yes, it could happen in fresh water!</p><p>Look at some of your Faucets in your home or your washing machine...the sediment will tell the corrosive story easily!!</p><p><br /></p><p><br /></p><p>RickieB[/QUOTE]</p><p><br /></p>

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