Surface Water chemical-physical and microbiological analytics of rivers, preflooders, ponds, lakes and pools analysis of fish ponds, bathing ponds and general ponds according to ÖNORM M 6230-1 ÖNORM M 6231 determination of biological water quality and saprobial index examination of ecological functional capability of rivers according to ÖNORM M 6232 examination of preflooders according to national guideline (BMLF 1999, modules 1-3) Pools testing of open air baths and indoor swimming pools according to Austrian law