C. Emi Fergus

I updated the WQX QAQC Characteristic Validation Table (on CDX) with the following changes: Sodium (WATER) now has an upper threshold of 15850000 ug/L; DO (WATER) has a more conservative...

I'm working through the priority characteristic/unit combos in https://github.com/USEPA/EPATADA/blob/develop/inst/extdata/TADAPriorityCharUnitRef.csv to evaluate range of values in the WQX QAQCValidation table. Suggesting other minimum and maximum values where appropriate and documenting reasoning...

I'm not that familiar with different fractions of pH - but doing some googling - it seems plausible that there could be suspended pH measurements and including it in the...

I'm late to the game but catching up. > Is there any sort of indicator or ref table on which waterbody types would tie to freshwater vs saltwater? Hmm, the...

Yes, the above summarizes the question that came up. It also may apply when data submitters report the detection limit value as the results value but may not properly document...

Pushed a function to rename WQX3.0 column names back to WQX2.0 legacy names referencing the online schema. However, we noticed that there are differences in special characters between the 2.0...

Updated TADA_RenameColumn function to rename WQX3.0 columns to legacy version and/or names used in TADA_AutoClean. Calling TADA_DataRetrieval with applyautoclean = TRUE is working. Will test it on other queries to...