SANS 241 DRINKING WATER
The South African National Standard (SANS) 241 Drinking Water Specification states the minimum requirements for potable water to be considered safe for human consumption. The below tables outline these requirements. Requirements include microbiological, physical, aesthetic and chemical properties.
The SANS 241 Drinking Water Compliance package includes:
MICROBIOLOGICAL DETERMINANDS
| Determinand |
Unit |
Risk |
Standard Limit |
||
|
E. coli / faecal coliforms |
(count per 100 mL) |
Acute health |
Not Detected |
||
|
Cryptosporidium spp |
(count per 10 Litre) |
Acute health |
Not Detected |
||
|
Giardia spp |
(count per 10 Litre) |
Acute health |
Not Detected |
||
|
Total Coliforms |
(count per 100 mL) |
Operational |
≤10 |
||
|
Heterotrophic Plate Count |
(count per 1 mL) |
Operational |
≤1000 |
||
|
Somatic Coliphages |
(count per 10 mL) |
Operational |
Not Detected |
||
PHYSICAL AND AESTHETIC DETERMINANDS
|
Determinand |
Unit |
Risk |
Standard Limit |
||
|
Colour |
(mg / L Pt-Co) |
Aesthetic |
≤ 15 |
||
|
Conductivity @ 25˚C |
(mS / m) |
Aesthetic |
≤ 170 |
||
|
Total Dissolved Solids |
(mg / L) |
Aesthetic |
≤ 1200 |
||
|
Turbidity |
(NTU) |
Operational |
≤ 1 |
||
|
(NTU) |
Aesthetic |
≤ 5 |
|||
|
pH @ 25˚C |
(pH units) |
Operational |
≥ 5 to ≤ 9.7 |
||
CHEMICAL PROPERTIES – MACRO DETERMINANDS
|
Determinand |
Unit |
Risk |
Standard Limit |
||
|
Free chlorine |
(mg / L as Cl2) |
Chronic health |
≤ 5 |
||
|
Monochloramine |
(mg / L) |
Chronic health |
≤ 3 |
||
|
Nitrate |
(mg / L as N) |
Acute health |
≤ 11 |
||
|
Nitrite |
(mg / L as N) |
Acute health |
≤ 0.9 |
||
|
Combined nitrate plus nitrite (2) |
(mg / L as N) |
Acute health |
≤ 1 |
||
|
Sulfate |
(mg / L as SO4) |
Acute health |
≤ 500 |
||
|
(mg / L as SO4) |
Aesthetic |
≤ 250 |
|||
|
Fluoride |
(mg / L as F) |
Chronic health |
≤ 1.5 |
||
|
Ammonia |
(mg / L as N) |
Aesthetic |
≤ 1.5 |
||
|
Chloride |
(mg / L as Cl) |
Aesthetic |
≤ 300 |
||
|
Sodium |
(mg / L as Na) |
Aesthetic |
≤ 200 |
||
|
Zinc |
(mg / L as Zn) |
Aesthetic |
≤ 5 |
||
CHEMICAL PROPERTIES – MICRO DETERMINANDS
|
Determinand |
Unit |
Risk |
Standard Limit |
||
|
Antimony |
(μg / L as Sb) |
Chronic health |
≤ 20 |
||
|
Arsenic |
(μg / L as As) |
Chronic health |
≤ 10 |
||
|
Barium |
(μg / L as Ba) |
Chronic health |
≤ 700 |
||
|
Boron |
(μg / L as B) |
Chronic health |
≤ 2400 |
||
|
Cadmium |
(μg / L as Cd) |
Chronic health |
≤ 3 |
||
|
Chromium (Total) |
(μg / L as Cr) |
Chronic health |
≤ 50 |
||
|
Copper |
(μg / L as Cu) |
Chronic health |
≤ 2000 |
||
|
Cyanide (Recoverable) |
(μg / L as CN) |
Acute health |
≤ 200 |
||
|
Iron |
(μg / L as Fe) |
Chronic health |
≤ 2000 |
||
|
(μg / L as Fe) |
Aesthetic |
≤ 300 |
|||
|
Lead |
(μg / L as Pb) |
Chronic health |
≤ 10 |
||
|
Manganese |
(μg / L as Mn) |
Chronic health |
≤ 400 |
||
|
(μg / L as Mn) |
Aesthetic |
≤ 100 |
|||
|
Mercury |
(μg / L as Hg) |
Chronic health |
≤ 6 |
||
|
Nickel |
(μg / L as Ni) |
Chronic health |
≤ 70 |
||
|
Selenium |
(μg / L as Se) |
Chronic health |
≤ 40 |
||
|
Uranium |
(μg / L as U) |
Chronic health |
≤ 30 |
||
|
Aluminium |
(μg / L as Al) |
Operational |
≤ 300 |
||
ORGANIC DETERMINANDS
|
Determinand |
Unit |
Risk |
Standard Limit |
||
|
Total Organic Carbon |
(mg / L) |
Chronic health |
≤ 10 |
||
|
Trihalomethanes: |
|
|
|
||
|
Chloroform – CHCl3 |
(μg / L) |
Chronic health |
≤ 300 |
||
|
Bromoform – CHBr3 |
(μg / L) |
Chronic health |
≤ 100 |
||
|
Dibromochloromethane – CHBr2Cl |
(μg / L) |
Chronic health |
≤ 100 |
||
|
Bromodichloromethane – CHBrCl2 |
(μg / L) |
Chronic health |
≤ 60 |
||
|
Combined trihalomethanes (3) |
(μg / L) |
Chronic health |
≤ 1 |
||
|
Total Mycrocystin |
(μg / L) |
Chronic health |
≤ 1 |
||
|
Phenols as C6H5OH |
(μg / L) |
Aesthetic |
≤ 10 |
||
RISK DETERMINANDS
|
Risk |
Required compliance to SANS 241:2015 |
|
Acute health microbiological |
99.00% |
|
Acute health chemical |
99.00% |
|
Chronic health |
97.00% |
|
Aesthetic |
95.00% |
|
Operational |
95.00% |
GLOBAL G.A.P
GLOBAL G.A.P is an international Certification System comprising various standards and standardised compliance requirements, with the aim of advancing the principles of Good Agricultural Practice across a variety of Agricultural disciplines.
Our GLOBAL G.A.P water compliance testing packages are available to local GLOBAL G.A.P members, and incorporates the following packages and parameters:
The GLOBAL G.A.P. Standard Water Compliance package includes:
MICROBIOLOGICAL DETERMINANDS
| Determinand |
Unit |
|
E. coli / faecal coliforms |
(count per 100 mL) |
|
Total Coliforms |
(count per 100 mL) |
|
Heterotrophic Plate Count |
(count per 1 mL) |
PHYSICAL AND AESTHETIC DETERMINANDS
|
Determinand |
Unit |
|
Conductivity @ 25˚C |
(mS / m) |
|
Alkalinity |
(mg / L) |
|
pH @ 25˚C |
(pH units) |
CHEMICAL PROPERTIES – MACRO DETERMINANDS
|
Determinand |
Unit |
|
Nitrate |
(mg / L as N) |
|
Calcium |
(mg / L as Ca) |
|
Magnesium |
(mg / L as Mg) |
|
Sodium |
(mg / L as Na) |
|
Sodium Absorption Ratio (SAR) |
CHEMICAL PROPERTIES – MICRO DETERMINANDS
|
Determinand |
Unit |
|
Antimony |
(μg / L as Sb) |
|
Arsenic |
(μg / L as As) |
|
Iron |
(μg / L as Fe) |
|
Manganese |
(μg / L as Mn) |
|
Mercury |
(μg / L as Hg) |
|
Selenium |
(μg / L as Se) |
The GLOBAL G.A.P Irrigation Water Package consists of:
CHEMICAL PROPERTIES – MICRO DETERMINANDS
|
Determinand |
Unit |
|
Arsenic |
(μg / L as As) |
|
Beryllium |
(μg / L as Be) |
|
Cadmium |
(μg / L as Cd) |
|
Cobalt |
(μg / L as Co) |
|
Lead |
(μg / L as Pb) |
|
Nickel |
(μg / L as Ni) |
|
Selenium |
(μg / L as Se) |
|
Uranium |
(μg / L as U) |
|
Vanadium |
(μg / L as V) |
The GLOBAL G.A.P Domestic / Drinking Water Package contains:
CHEMICAL PROPERTIES – MICRO DETERMINANDS
|
Determinand |
Unit |
|
Antimony |
(μg / L as Sb) |
|
Arsenic |
(μg / L as As) |
|
Cadmium |
(μg / L as Cd) |
|
Lead |
(μg / L as Pb) |
|
Mercury |
(μg / L as Hg) |
|
Nickel |
(μg / L as Ni) |
|
Selenium |
(μg / L as Se) |
|
Vanadium |
(μg / L as V) |
Please Note: All testing packages may be customised based on specific audit / industry pre-requisites as required.
A link to the GLOBAL G.A.P website is provided below:
IRRIGATION
Whether for commercial crop irrigation, large scale plant cultivation, maintenance of sports fields, or domestic garden irrigation; “What you put in is what you get out” is nowhere more applicable than here, as the quality of our irrigation water directly affects the outcome of the crop or plant being grown.
The Irrigation Water package includes:
MICROBIOLOGICAL DETERMINANDS
| Determinand |
Unit |
|
E. coli / faecal coliforms |
(count per 100 mL) |
|
Total Coliforms |
(count per 100 mL) |
|
Heterotrophic Plate Count |
(count per 1 mL) |
PHYSICAL AND AESTHETIC DETERMINANDS
|
Determinand |
Unit |
|
Conductivity @ 25˚C |
(mS / m) |
|
Alkalinity |
(mg / L) |
|
pH @ 25˚C |
(pH units) |
|
Total Dissolved Solids |
(mg / L) |
|
Total Suspended Solids |
(mg / L) |
CHEMICAL PROPERTIES – MACRO DETERMINANDS
|
Determinand |
Unit |
|
Nitrate |
(mg / L as N) |
|
Calcium |
(mg / L as Ca) |
|
Chloride |
(mg / L as Cl) |
|
Fluoride |
(mg / L as F) |
|
Magnesium |
(mg / L as Mg) |
|
Sodium |
(mg / L as Na) |
|
Sodium Absorption Ratio (SAR) |
CHEMICAL PROPERTIES – MICRO DETERMINANDS
|
Determinand |
Unit |
|
Boron |
(μg / L as B) |
|
Copper |
(μg / L as Cu) |
|
Iron |
(μg / L as Fe) |
|
Manganese |
(μg / L as Mn) |
|
Molybdenum |
(μg / L as Mo) |
BOREHOLE
Catalysed by extended periods of drought and water shortage across parts of the country, the utilisation of underground water sources by commercial as well as residential users has in recent years become a much more integral part of life, with many users choosing to not only utilise this water source industrially, but also as a potable water source. It is essential to ensure that the quality of your borehole water is fit for the purpose for which it is intended.
The Borehole Water package includes:
MICROBIOLOGICAL DETERMINANDS
| Determinand |
Unit |
|
E. coli |
(count per 100 mL) |
|
Total Coliforms |
(count per 100 mL) |
|
Heterotrophic Plate Count |
(count per 1 mL) |
PHYSICAL AND AESTHETIC DETERMINANDS
|
Determinand |
Unit |
|
Colour |
(mg / L Pt-Co) |
|
Conductivity @ 25˚C |
(mS / m) |
|
Corrosivity Index |
|
|
Alkalinity |
(mg / L) |
|
pH @ 25˚C |
(pH units) |
|
Total Dissolved Solids |
(mg / L) |
CHEMICAL PROPERTIES – MACRO DETERMINANDS
|
Determinand |
Unit |
|
Nitrate |
(mg / L as N) |
|
Calcium |
(mg / L as Ca) |
|
Chloride |
(mg / L as Cl) |
|
Fluoride |
(mg / L as F) |
|
Magnesium |
(mg / L as Mg) |
|
Potassium |
(mg / L as K) |
|
Sodium |
(mg / L as Na) |
|
Sodium Absorption Ratio (SAR) |
|
|
Sulphate |
(mg / L as SO4) |
CHEMICAL PROPERTIES – MICRO DETERMINANDS
|
Determinand |
Unit |
|
Iron |
(μg / L as Fe) |
|
Total Iron |
(μg / L as Fe) |
|
Manganese |
(μg / L as Mn) |
|
Total Manganese |
(μg / L as Mn) |
EFFLUENT (Incl. Agricultural, IPW)
The Effluent package includes:
MICROBIOLOGICAL DETERMINANDS
| Determinand |
Unit |
|
E. coli / faecal coliforms |
(count per 100 mL) |
|
Total Coliforms |
(count per 100 mL) |
PHYSICAL AND AESTHETIC DETERMINANDS
|
Determinand |
Unit |
|
Chemical Oxygen Demand (COD) |
(mg / L) |
|
Conductivity @ 25˚C |
(mS / m) |
|
pH @ 25˚C |
(pH units) |
|
Total Suspended Solids |
(mg / L) |
CHEMICAL PROPERTIES – MACRO DETERMINANDS
|
Determinand |
Unit |
|
Calcium |
(mg / L as Ca) |
|
Magnesium |
(mg / L as Mg) |
|
Potassium |
(mg / L as K) |
|
Sodium |
(mg / L as Na) |
|
Sodium Absorption Ratio (SAR) |
SPEAK TO US
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