ASSESSMENT OF GROUND WATER QUALITY STATUS BY USING WATER QUALITY INDEX (WQI) METHOD IN
TURENI VILLAGE, CLUJ COUNTY

 

CRISTINA ROŞU, IOANA PIŞTEA, MIHAELA CĂLUGĂR , ILDIKO MARTONOŞ, A. OZUNU

 

 

ABSTRACT. - Assessment of ground water quality status by using water quality index (WQI) method in Tureni Village, Cluj County. The rural population from Romania is dealing even today with the absence of access to a sure drinking water source. Therefore in 2002 only 65% of the Romanian population had access to drinking water, distributed in 90% from the urban environment and 33% from the rural one (www.recensamant2002.ro). This work presents a case study referring to a 3 month (April-May-June 2011)     monitoring of weekly samples of the quality of well water (10 samples) from Tureni village, Cluj County. A portable multiparameter model WTW 720 Germany was used to measure the pH, total dissolved solids (TDS), electrical conductivity (EC), temperature, oxidation-reduction potential and salinity of the collected water samples (these tests were done on site). In laboratory, using the photometric method (RQ Flex instrument, Merck) we determined : Ca²⁺, Mg²⁺, SO₄^2-, Cl^- and NO₃^-  (C. Nertan et C. Rosu, 2008). The analyzed well water samples have values over the legally admitted limits by the Romanian legislation for the drinking waters (L 458/2002) in the calcium cation, the nitrate and sulfate anion, but also in the global parameters: salinity and TDS.

 

Keywords: Groundwater, WQI, Minerals in groundwater, Nitrates in water, Tureni village

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