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 of inherited shares is generally the value of the shares on the day the decedent died; however, consult the executor of, or tax advisor to, the estate to determine if cost basis should be determined by reference to a value on an alternate date.