AquaChem AquaChem AquaChem AquaChem
AquaChem AquaChem


What's New in AquaChem 5.0!
Plots & Mapping  
Streamlined plot options make editing axes, titles, legends easier
Axes tick labels may be angled
Map plots - data aggregation for multiple samples at same station: select various aggregation options: oldest sample, newest sample, max/min value, etc.)
Import polyline shape files (ESRI .SHP) as your basemaps
Import and georeference raster images (air photos or topographic maps) for use as your project base map - and overlay various plots!
Map plot may contain multiple basemaps, basemaps are activated and deactivated with a checkbox
Export Stiff and Radial thematic plots to .SHP file format for use with GIS tools such as HydroGeo Analyst
Color fill options for Box plot
Display uncertainty bars (whiskers) on XY scatter plots, such as time series, scatter plots
Display lines for max tolerance concentrations or method detection limit (MDL) on time series plots - lines can also be included in the legend!
Advanced symbol labeling options: position labels anywhere on the plot and use connecting lines and user-defined text (annotation) to identify samples
Use measured Alkalinity in Piper diagrams, instead of HCO3
New Plots:
Box and Whisker time series plot (show boxes for samples from the same month, year or season)
Meteoric Water Line
Quantile plot
Detection Summary
Time Series - bar charts: displays statistics values for months or years in bar format

Reports & Statistics  
Statistics report supports multiple units allowing the user to select and calculate several parameter units simultaneously
New options for managing non-detects (censored) data: Ignore, Multiply, Constant, Trimmed, Winsorize (based on "US EPA QA Guidance for Data Quality Assessment, Practical Methods for Data Analysis")
New Statistical options: Define any Quantile, Confidence interval, T-statistics, Number and % of Non-Detects, number and % of detects below and above standard, Skewness, Kurtosis, Tolerance interval + limits
Save statistical report configurations for future recall
For statistical calculations, automatically displays a separate statistic for every symbol in the record list
Statistical Trend Analysis:
  Linear Regression
Sens test
Mann Kendall test
Statistical Outlier test:
  Dixon's test (Extreme value test)
Discordance test
Rosner test
Walsh's test
Test for Normality:
  Studentized range test
Geary's test
Shapiro Wilk test (W-Test)
D'Agostino's test
Variance coefficient
New QA/QC Report: Compare sample to its duplicate to determine margins of error - quickly find and highlight samples containing outlier values and non detects!
Save hardwired reports and table views as Excel format

Data Management & Display  
User-defined picklists for text parameters (customize a predefined list of values for any text field for sample or station parameters)
Enhanced options for sample details window (adjust frame sizes, station tab is now moved, etc.)
Import data from Excel (.XLS) format.
Export data, reports, and spreadsheet to Excel format
Save Advanced Finds (Queries), and recall later on.
Export XYZ data
Export any station locations, and attribute data (elevation, gw elevation, chemical concentrations, etc.)to ESRI points shape (.SHP) file, to be used with GIS tools, such as HydroGeo Analyst
Modify and save the Chemicals database, for future recall.
Database - ranges - define a natural occurrence flag, to be used for quality control, to check if concentrations are outside the normal distribution
Change parameter types after they are created (ex change from Text to Integer)
Sample details: analysis may be marked as outlier, and it can be excluded from all calculations and plots

Water Quality Standards & QA/QC  
When importing water quality guidelines, automatically match chemical CAS Registry # to parameter name in the database; eliminates the need for manual matching
In table view and sample details window, display a color legend symbolizing the color for each exceedence level.
Test to see if chemical concentration exceeds solubility
Test for concentration outside defined natural occurrence interval

Tools & Calculations  
New option in Decay calculator: estimate half life from 2 concentration/time pairs.
OH-concentration is included in the alkalinity calculations if available
New time functions:
"season", which returns a season number for every
     sample date. E.g. you may search for season = 2 and all
     summer samples will be highlighted. This can be useful if
     you have a scatter plot with deep and shallow samples
     and you want to see if samples from the same season
     will build clusters.
"month" to retrieve all samples from the same month
"year" function to retrieve all samples from the
     same year