| Watershed | | Nominal | Watershed of collection |
| Location | | Nominal | Sample location |
| Trans | | Physical quantity | Transect number |
| Site | | Physical quantity | Site number (e.g., a well or surface water location) |
| Geology | | Nominal | Name of geology formation |
| SampleMon | | Physical quantity | Sample collected Month
|
| SampleDay | | Physical quantity | Sample collected Day.
|
| SampleYear | | Physical quantity | Year of record |
| SWDate | | Date/time | Date water level was measured |
| StartTime | | Date/time | Start Time |
| DTW | | Physical quantity | Depth to water |
| Elevation | | Physical quantity | Water level elevation above mean sea level (meter) |
| O2 | | Physical quantity | Dissolved oxygen (O2(aq)) measured with a DO probe (mg/L) |
| Conduct1 | | Physical quantity | Conductivity measured with DO probe (µS/cm). |
| SpC | | Physical quantity | Specific conductivity measured with DO probe (µS/cm) |
| pH2 | | Physical quantity | pH measured on site in the field (pH probe). |
| Temp2 | | Physical quantity | Temperature of water at time of field pH measurement (pH probe). |
| Conduct2 | | Physical quantity | Conductivity measured with pH probe (a pH/T/C meter) (uS/cm) |
| Alkalinity1 | | Physical quantity | Measured alkalinity in meq/L as H+ autotitrator
|
| Alkalinity2 | | Physical quantity | Measured alkalinity in mg/L as CaCO3 with autotitrator
|
| Alkalinity1_buret | | Physical quantity | Measured alkalinity in meq/L as H+ with buret
|
| Alkalinity2_buret | | Physical quantity | Measured alkalinity in mg/L as CaCO3 with buret |
| F | | Physical quantity | Fluoride concentration in parts per million, determined by ion chromatography |
| Cl | | Physical quantity | Chloride concentration in parts per million, determined by ion chromatography |
| NO3_N | | Physical quantity | Nitrate concentration in parts per million as nitrogen (N), determined by ion chromatography |
| SO4 | | Physical quantity | Soncentration in parts per million, determined by ion chromatography |
| Na2 | | Physical quantity | Sodium concentration in parts per million, determined by ion chromatography |
| K2 | | Physical quantity | Potassium concentration in in parts per million ,determined with ion chromatography |
| Mg2 | | Physical quantity | Magnesium concentration in parts per million, determined with ion chromatography |
| Ca2 | | Physical quantity | Calcium concentration in parts per million, determined with ion chromatography |
| Sr | | Physical quantity | Strontium concentration in parts per million, determined with ion chromatography |
| NPOC | | Physical quantity | Non-purgeable organic carbon measured using a total organic carbon analyzer (mg/L) |
| TDN | | Physical quantity | Total dissolved nitrogen measured using a total nitrogen unit on a carbon analyzer (mg/L) |
| dD | | Physical quantity | Hydrogen stable isotope composition of water expressed in delta notation relative to standard mean ocean water (per mil) |
| d18O | | Physical quantity | Oxygen stable isotope composition of water expressed in delta notation relative to standard mean ocean water (per mil) |
