Major ions are defined here as chemical constituents that generally occur at concentrations greater than 1 mg/L in water. The major constituents tested for in the Ambient Ground Water Quality Monitoring Network include: Calcium Dissolved as Ca, Magnesium Dissolved as Mg, Sodium Dissolved as Na, Potassium Dissolved as K, Chloride Dissolved as Cl, Sulfate Dissolved as SO4, Fluoride Dissolved as F, Silica Dissolved as SiO2 and Bicarbonate as HCO3, Carbon Organic Dissolved as C. Concentrations are reported in milligrams per liter (mg/L). The Field Parameters are also listed under this heading. The parameters are as follows: Water Temperature (°C), Air Pressure (mm of Hg), Specific Conductance @ 25 °C (us/cm), Dissolved oxygen (mg/L), pH Water Whole Field (Standard Units), and pH Water Whole Laboratory (Standard Units). This update (2013) includes the data from the complete second sampling cycle of all 150 wells which comprise the redesigned NJAGWQMN.
NJDEP, NJGWS (2020). Ambient-Major Ions of New Jersey [New Jersey]. . https://gisdata-njdep.opendata.arcgis.com/datasets/njdep::ambient-major-ions-of-new-jersey (web service)