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Other Common Analyses
Of Drinking Water
Note: Minimum 1l sample size
Nitrate Estimation
MAC (drinking water) : 50mg/l
Source / Occurrence: Major source is leachate of agricultural
nitrate into groundwater as a consequence of excessive application of
fertiliser. Nitrate source may be organic or inorganically derived.
Reason for monitoring: Methaemoglobinaemia in infants
and possible link to stomach cancer due to the body's conversion of nitrate
to nitrites and N-nitroso compounds.
Circumstances for testing (consumer complaint): Undetectable
by the consumer, visually and organoleptically.
Price: £33.00
Click to download an order form
Lead Estimation
MAC (drinking water) : 50mcg/L
Source / Occurrence: Primarily household plumbing.
Reaon for monitoring: Lead is a cumulative poison.
Circumstances for testing (consumer complaint): Undetectable
by the consumer, visually and organoleptically. If the property has,
or is suspected of having lead piping, there may be a risk of lead leaching
into the water. The extent of the leaching is however dependent on other
checmical properties of the water. (This is generally only applicable
to older properties).
Price: £38.00
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form
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Copper Estimation
MAC (drinking water) : 3000ug/l
Source / Occurrence: Primarily household plumbing.
The extent of the leaching is however dependent on other checmical properties
of the water.
Reaon for monitoring: Enhancement of corrosion to fittings
and utensils.
Circumstances for testing (consumer complaint): At
elevated water levels copper does not constitute a health hazard. However
at high level the water may take on a bitter metallic taste. This can
be said for zinc also.
Price: £33.00
Click to download an order form
Hardness
MAC (drinking water) : Minimumlevl of 60mg/l as Ca. (minimum level set
for water serving a large population over a long period of time as the only source
of drinking water).
Source / Occurence: The degree of hardness in water
varies from place to place dependent on the geology of the area. Hardness
is caused chiefly by cations such as calcium and to a lesser extent magnesium.
Hard waters are normally associated with chalk or limestone catchment
areas.
Reason for monitoring: Possible link between low hardness
and increased cardiovacular disease. Excessive levels may cause consumer
plumbing complaints. See below.
Circumstances for testing (consumer complaint): Hardness
can give rise to a number of household complaints such as scaling over
pipes and elements in kettles and boilers leading to reduced efficiency.
Scale can often be seen as a fine white or orange tinged granular / sandy
or flaky deposit in otherwise clear water. Excessively hard waters can
also neutralize the lathering power of soap and detergents.
It must however be noted that the general rule is that the toxicity
of pollutants and contaminants are significantly less in hard water areas
rather than soft water areas.
Price: £35.00
Click to download an order
form
Iron Estimation
MAC (drinking water) : 200ug/l
Source / Occurrence: Primarily in household plumbing,
usually in the ferric state (rust). The extent of the iron leaching or
rusting is dependant on other chemical and physical properties of water.
Also derived from natural or industrial pollution at source or from coagulant
treatment contamination.
Reaon for monitoring: Laundry staining problems / 'dirty
water'.
Circumstances for testing (consumer complaint): At
elevated water levels iron does not constitute a hazard to health.
However at high levels the water may take on an unpleasant metallic
taste (taste threshold above 0.3mg/l for most people). The most common
complaint will arise with a gelatinous brown precipitation or sediment
from the consumer tap or storage tank, which is again caused by hydrated
iron oxides within the system.
Price: £33.00
Click
to download an order form
Note: MAC = Maximum Admissable Concentration
We can carry out
other analyses by arrangement, please
contact us.
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