Notation	Name	Description	Status
0	Operational		stable
1	Possible clogging problem or otherwise degraded water level data		stable
2	Possible datum shift		stable
3	Unknown status of water level sensor		stable
4	Suspected or known sea temperature sensor problem		stable
5	Multiple possible problems (above)		stable
6	Bad data - DO NOT DISSEMINATE!		stable
7	No manual water level checks performed		stable
31	Missing value		stable