May be associated with the presence of sodium in drinking water when present in high concentrations. Often from saltwater intrusion, mineral dissolution, industrial and domestic waste. Deteriorates plumbing, water heaters, and municipal water-works equipment at high levels.
Cost basis is the original price paid for shares of a security plus or minus certain adjustments required by applicable tax rules such as adjustments with respect to reinvested distributions and sales charges.
1. The price of an asset for tax purposes. That is, one uses the cost basis of an asset to determine the capital gain or loss on an investment. For example, if an investor buys 1,000 shares of a stock for $10 per share and, at the end of the tax year, the stock is worth $15 per share, the cost basis is $10 per share.