The history of Grudziądz brines

In winter 1972 in Marusza near Grudziądz, in search of petroleum and gas, Lower Jurassic deposit of thermal waters was found. Deposits of warm water of ca. 44° C were found on depth of 1630 m, which blew out higher than 13 m.

It was a magnificent and a surprising discovery. Chemical analysis of the flowing water, made in 1972, qualified it to brine waters, with unique chemical constitution. Only in year 2001, due to increasing interest in geothermal resources, at the initiative of the company Geotermia Marusza and on the basis of the existing documentation of PAN [Polish Academy of Sciences], hydrogeological documents for hyperthermal water resources were prepared.

Repeated tests of brine composition confirmed its exceptional curative properties, thanks to which it was enclosed to the list of curative minerals deposits.

Deposits of the discovered brine are practically inexhaustible. With output of 20 thousand litres per hour, i.e. almost half million litres per 24h, there is enough brine for 1000 years. The earth layer of 1630 m effectively protects against civilizational pollution, providing its uncontaminated purity and unchanged chemical constitution, formed by nature. Undoubtedly, no sea or ocean area, where people swim nowadays, can compete with purity of this water anymore.

Since completion of documentation-related procedures, Geotermia acceded to building of balneological objects, which would allow for utilization of brine for curative purposes. The pace of works was impressive. The first object, equipped with tubs, inhalators, cryotherapy, gymnastics hall, infrared sauna and 2 massage salons, was established in March 2006. In May 2006, pyramid with brine graduation tower was commissioned, which not only allowed for collective inhalation in a closed object, but also for resting after treatment in absolute silence. Evaporation of graduation tower inside the pyramid extremely increases its effective influence on the organism.

Brine Cave was made available in June 2006 – the first possibility of group baths and gymnastics in brine.

Opening of the following 4 pools with brine of different concentration were opened almost a year later, in May 2007, as well as a wide range of accompanying services aiming to improvement and maintenance of health: 2 massage salons, gymnastics hall, fitness hall, beauty parlour, 2 saunas, child care room, vitamin bars. The concept of building of this object provides extreme flexibility of services connected with maintenance of good health.

After 30 years, utilization of brines for curative purposes in biological regeneration became the fact. With current pace of sea and ocean pollution, brine from inside of the Earth may become the only alternative of a healthy bath in saline water, a nostalgic memory of marine holidays.