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.
The cost basis is used to calculate gain or loss on the eventual sale of stock. If you inherited stock, your cost basis equals the value on the date of death. Whatever the reason, determining the date of death value for the stock is achievable with a few basic calculations. Step 1.