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  • HOME
    • About us
    • Pollet Water Group
  • FIELDS OF APPLICATION
  • PRODUCTS
    • Softeners >
      • Domestic Softeners >
        • Coral Softener
        • Micro Softener
        • Swan Softener
        • Delta Non Electric
      • Commercial Softeners
    • Filtration >
      • Filters & Housing
      • Sediment Reduction
      • Iron & Manganese
      • pH Systems
      • Arsenic Reduction
      • Nitrate Reduction
      • Carbon Filters
      • Colour Reduction
      • Hydrogen Sulphide
    • Reverse Osmosis >
      • Domestic RO
      • Industrial RO
      • RO Membranes
    • Valves
    • Vessels & Tanks >
      • Composite Vessels & distribution
      • Expansion vessels
      • Brine Tanks
      • Dosing Tanks & Bunds
    • UV Disinfection
    • Resin & Filter Media >
      • Ion Exchange Resins
      • Filter Media
  • Documentation
    • Catalogues
  • TECHNICAL FORUM
    • Datasheets
    • Manuals
    • Private Water Supplies
    • How Water Softeners Work
    • Conversions and Useful Data
  • NEWS
  • CONTACT

Private Water Supplies

The "Private Water Regulations 2009" states that water inteneded for human consumption must be wholsome. Wholesome is defined as free from microorganisms, or substances at a concentration  that would constitute a potential danger to huamn health (paraphrased).  Many of these substances can be removed by targeted filtration (see filtration products) or disinfection(see UV products).  These  methods are similar to those  used for industrial water or process treatment.
Any private water supply should meet this quality standard but depending on how much water is used and if it is being used commercially (eg supplying water to a B&B) will determine how often Environmental Health Officers (EHO's) will visit and what is tested for. There is a lot more emphasis on risk assessments looking at curing problems rather than just looking at  one off samples which may or may not be representative of normal conditions.
Wholesomeness: Microbiological Parameters (maximum number)
Escherichia coli (E. coli)            0 per 100ml
Enterococci                                0 per 100ml
2009 Private Water Suppllies Regulations 2009
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File Type: pdf
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Wholesomeness: Chemical Parameters (maximum concentration)
Acrylamide                                                0.10 ug/l
Aluminium                                                200 ug/l
Antimony                                                  5.0 ug/l
Arsenic                                                      10 ug/l
Benzene                                                    1 ug/l
Beno(a)pyrene                                          0.010 ug/l
Boron                                                         1 mg/l
Bromate                                                    10 ug/l
Cadmium                                                  5 ug/l
Chromium                                                50 ug/l
Colour                                                       20 mg/l
Copper                                                      2 mg/l
Cyanide                                                     50 ug/l
1,2 dichloroethane                                  3 ug/l
Epichlorohydrin                                       0.1 ug/l
Fluoride                                                    1.5 mg/l
Lead                                                          10 ug/l
Manganese                                               50ug/l
Mercury                                                    1 ug/l
Nickel                                                        20 ug/l
Nitrate                                                      50 mg/l
Nitrite                                                        0.5 mg/l
Odour                                                       Acceptable and no change
Total pesticides                                       0.5 ug/l
Polycyclic aromatic hydrocarbons       0.1 ug/l
Selenium                                                   10 ug/l
Sodium                                                      200 mg/l
Tetrachloroethane & trichloroethane  10 ug/l
Tetrachloromethane                               3 ug/l
Trihalomethanes                                     100 ug/l
Turbidiity                                                   4 NTU
Vinyl chloride                                            0.5 ug/l                     
Indicator Parameters  (maximum concentration)
Ammonium                                                  0.5 mg/l
Chloride                                                        250 mg/l
Clostridium Perfringens                            0 per 100ml
Coliform bacteria                                        0 per 100ml
Colony counts (22C & 37C)                        no abnormal change
Conductivity                                                2500 us/cm at 20C
pH (Hydrogen ion)                                      6.5 to 9.5
Sulphate                                                       250 mg/l
TOC                                                               no abnormal change
Tritium                                                         100 Bq/l
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