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[VD08] Drinking water quality
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Figure VD08-1: Share of unsuitable samples from microbiological tests due to the presence of E.coli and enterococci, and share of unsuitable samples from physical-chemical tests due to the exceeded concentration of pesticides and/or nitrates in the drinking water supply systems supplying 5,000 citizens or more in the Republic of Slovenia
Sources:

Drinking Water Supply Systems Database, Institute of Public Health, 1999, 2000, 2001, 2002, 2003 and Drinking Water Supply Systems and Drinking water accordance Database 2004-2007.

Show data
1999 2000 2001 2002 2003 2004 2005 2006 2007
non-compliance E. coli % 1.5 1.2 0.9 1.1 1.1 3.9 2.6 1.2 2.6
non-compliance enterococci % 0.3 0.1 0.2 0.3 0.3 2.2 3.1 2.2 0.9
non-compliance combination of E. coli and enteroccoci % 0.5 0.2 0.4 0.1 0.3 1.8 1.2 1.3 0
non-compliance pesticides % 2 4.8 3.6 3.2 7 6.3 5.5 1.8 2.2
non-compliance nitrates % 0.7 0.6 0.4 0.7 1.4 0.2 0 0.9 0
Figure VD08-2: Share of population served by the drinking water supply systems where there were 5 % or more of identified unsuitable samples of drinking water (methodology changed in 2004)
Sources:

Drinking Water Supply Systems Database, Institute of Public Health, 1999, 2000, 2001, 2002, 2003 and Drinking Water Supply Systems and Drinking water accordance Database 2004-2007

Show data
1999 2000 2001 2002 2003 2004 2005 2006 2007
microbiologically (E.coli) non-compliance number 209919 204260 84798 168277 184503 215296 117043 74945 260293
toxically non-compliance number 58740 176677 150695 123654 380213 188059 137745 30163 47034
all inhabitants number 1398137 1455981 1452773 1505618 1481524 1402502 1400675 1414552 1414041
microbiologically (E.coli) non-compliance % 15 14 6 11 12 15 8 5 18
toxically non-compliance % 4 12 10 8 26 13 10 2 3
Figure VD08-3: Number of citizens served by the drinking water supply systems supplying 5,000 citizens or more and of these the number of citizens served by the systems at which the disinfection of drinking water was being implemented
Sources:

Drinking Water Supply Systems Database, Institute of Public Health, 1999, 2000, 2001, 2002, 2003 and Drinking Water Supply Systems and Drinking water accordance Database 2004-2007

Show data
1999 2000 2001 2002 2003 2004 2005 2006 2007
total number (in 1000) 1398 1456 1453 1506 1482 1402 1401 1414 1414
disinfection of drinking water number (in 1000) 854 852 848 894 900 - 623 631 638
no disinfection of drinking water number (in 1000) 545 604 604 611 581 - 544 544 624
no data number (in 1000) - - - - - 1402 234 239 152
Figure VD08-4: Pesticides and their maximum concentration in drinking water
Sources:

Drinking Water Supply Systems and Drinking water accordance Database 2004-2007, Institute of Public Health of the Republic of Slovenia

Show data
2004 2005 2006 2007
Atrazin µg/l 0.21 0.16 0.18 0.3
Bentazon µg/l - 0.98 1.4 0.48
Desetil-atrazin µg/l 0.29 0.32 0.42 0.3
Dimetenamid µg/l 0.26 - - -
Mekoprop µg/l - 0.21 - -
Metolaklor µg/l - 0.57 - -
Permetrin µg/l - - - 0.21
Terbutilazin µg/l - 0.49 - -
Pesticides-sum µg/l - 0.93 1.4 0.55
numbrer of inhabitants število 183881 151297 36999 53544

Goals

The objective is to establish the actual state in the field of drinking water supply in Slovenia, determine the values and trends of microbiological and physical-chemical parameters for the assessment of health suitability of drinking water, and propose general measures for the improvement of drinking water quality.

Methodology

Date of data source summarization
Last modified
06.06.2008
Author(s)

Ivanka Gale, National Institute of Public Health