Salt plan
A salt plan is a sub-procedure for monitoring and controlling the water quality . It includes measurement programs for evaluating the anthropogenic discharge of salts into water.
In the course of the development of the mining of potash salts in Lower Saxony at the beginning of the 20th century, the unregulated discharge of salty wastewater - and later (after the end of potash mining) through seepage from spoil heaps - led to sharp increases in the salinity and water hardness of various bodies of water. In 1924 the water rights of the individual companies were regulated in the salt plan. The salt plan stipulated the maximum permissible values for the chloride content and the hardness of the water, and a monitoring network was set up in the affected waters. After multiple changes to the limit values, a maximum load of 2000 mg / l chloride was considered acceptable in 2000.
Individual evidence
- ↑ New Archive for Lower Saxony, Volume 24, Publications of the Lower Saxony Office for State Planning and Statistics, p. 158.
- ↑ Water quality report Innerste . NLWK - Series of publications Volume 2, Lower Saxony State Office for Water Management and Coastal Protection, p. 119 ff. (PDF, 8.3 MB)