Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Chemical composition (mg/L) of background solutions
| Constituent | J-13 | LCA | TCU |
| Calcium | 3.04 | 50.33 | 1.02 |
| Magnesium | 1.34 | 42.6 | 0.336 |
| Potassium | 4.36 | 22.2 | 6.608 |
| Silicon | 18.6 | ||
| Sodium | 37.7 | 109 | 76.8 |
| Bicarbonate | 99.4 | 447a | 225 |
| Chloride | 4.16 | 142 | 14.4 |
| Fluoride | 1.13 | ||
| Nitrate | 3.26 | ||
| Sulfate | 10.2 | ||
| pH (unitless) | 7.98 | 8.08 | 8.88 |
a Estimated from the charge balance.
