if (!line.startsWith("#") && !line.matches("^\\s*$")
&& !isColumnHeaderLine(line)) {
try {
ValidObservation validOb = validator.validate();
if (validOb != null) {
addValidObservation(validOb, lineNum);
}
} catch (ObservationValidationError e) {
InvalidObservation invalidOb = new InvalidObservation(