amended law of july on water protection and management following a formal notice from the european commission the regulation was modified in to strengthen the role of the commission in granting derogations to water suppliers for non compliance with chemical parameters under the regulation such derogations may be granted on request provided they do not create potential human health hazards and where there is no other reasonable means to maintain water supply in the area directive ec retains only two of the three bacteriological parameters included in the old directive eec namely intestinal enterococci and escherichia coli which are assimilated with the parametres for thermotolerant coliform and fecal streptococcus