References:

1. Purcell P., 2003. Design of Water Resources Systems. Thomas Telford Limited, Bristol.
2. URL1: Council Directive 98/83/EC of 3 November 1998 on the Quality of water intended for human consumption. OJ L 330, 5.12.1998, p. 32–54
3. URL2: Synthesis Report on the Quality of Drinking Water in the EU examining the Member States' reports for the period 2008-2010 under Directive 98/83/EC. REPORT FROM THE COMMISSION COM (2014).
4. URL3: The consolidated version of the Regulation (EU) No 528/2012 of the European Parliament and of the Council of 22 May 2012 concerning the making available on the market and use of biocidal products (BPR), < a href="http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:02012R0528-20140425&from=EN">http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:02012R0528-20140425&from=EN"
5. URL4: NSF Guide to the European Standards for Drinking Water Treatment Units, 2009 (http://www.nsf.org/newsroom_pdf/European_Stds_Guide_LT_EN_LDW10050309.pdf)
6. URL5: EU's drinking water standards, LENNTECH, http://www.lenntech.com/applications/drinking/standards/eu-s-drinking-water-standards.htm
7. URL6: Guidelines for Drinking Water Quality. 2011. World Health Organization http://apps.who.int/iris/bitstream/10665/44584/1/9789241548151_eng.pdf