Assessment of drinking water quality from treatment plants and consumers

The present study investigated the quality of potable water that was taken from the
treatment plants in three counties from Romania (Ialomița, Gorj and Tulcea) for a
two-year period (2016 and 2017). A series of organic and inorganic indicators have
been analyzed in the drinking water from the respective locations.
Out of the 37 samples collected in Ialomița county in 2016, the following indicators
have exceeded the maximum admissible concentrations (MAC): sodium in 8% of
the total samples, nitrogen in 38%, copper in 27%, manganese in 5%, iron, nickel
and chromium in 3% of the samples. In Gorj County, samples from 25 locations
were analyzed during 2017. Exceedings of MAC were recorded for hardness in 36%
of the samples, for boron in 16%, for ammonium, iron and manganese in 12%, for
sodium and for chloride in 4% of samples. In 2017 a total of 33 samples were
analyzed in Tulcea County; the following indicators have exceeded MAC
trihalomethanes and iron in 3% of samples and manganese and fluorides in 9% of
samples.
For the analyzed indicators that exceeded the maximum admissible concentrations a
database including the physical-chemical characteristics of drinking water at the exit
from the treatment plants was created.