Rijnland:
1. Inconsistency of date 00 - 00 - yyyy
2. Inconsistency for measurements on the same year (e.g. 1987 for most of transects)

NoordHolland:
1. hoog and laag values of transects from 7000020 to 7000130 were 32767 [2^15-1]. Those values have been converted to **