This is what mayor volker schmiechen told the bayerische rundschau. After long-term and extensive investigations as well as interim chlorination and boiling of drinking water, the state health department of kulmbach lifted the boiling ban in writing on wednesday.
In the past few months, investigations have been carried out in various areas of the water supply system. In this context, regular drinking water samples were taken and analyzed by the laboratory analab taubmann gmbh. It has been shown that especially at the upper high retainer "kernholzla microbiological contamination has occurred.
The upper elevated tank was then cleaned a second time by the specialist company mosslein from lohr am main. On advice of the health office kulmbach additional structural mabnahmen were made, from which one hopes for an improvement of the present situation.
The last test results from 26. Marz, 3. And 9. April were all in order, and the applicable limits of the drinking water ordinance were complied with.
For the first time, the administration had already notified all households in the municipality at the end of august 2017. In the untersteinach drinking water supply area, microbiological contamination was detected after cleaning of the high tank – cause unknown. The rothwinder laboratory analab then took samples and examined them. On the orders of the state health department in kulmbach, the citizens were asked to drink only boiled tap water.
Some time later the boiling ban was lifted again. Mayor schmiechen was not sure, however, and his fears were confirmed: measurements taken in december at the "kernsholzla" elevated reservoir showed that the problem was in fact at the "kernsholzla" elevated reservoir and on the lower high level holder, colony numbers of over 300 were found, whereby the limit here is 100. The coliform bacteria were 200, eight and 32, but here must be a zero. Enterococci also appeared for the first time.
In january 2018, the pipeline network was chlorinated for a long period of time, and in february it became clear that the problem was most likely in the "kernsholzla" reservoir to look for after the water had been replaced by a change in the supply line.