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.
Cost basis is the original monetary amount paid for shares of a security. When you sell or exchange shares of mutual funds or other securities, you may have a capital gain or loss that must be reported to the IRS. First In, First Out (FIFO). 2  Using FIFO, cost basis is calculated using the specific amount paid for shares. 3  This method assumes that the first shares you sell are the first you bought. 4  Fidelity uses FIFO when calculating your cost basis for individual securities, such as stocks and bonds.