DelAgua OXFAM-DELAGUA, User Manual

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OXFAM-DELAGUA Water Testing Kit — Users Manual
14
Minimum Frequency of Sampling and Analysis of Unpiped Water Supplies
Source and
mode of supply Bacteriological Physical/
Chemical Remarks
Open well Sanitary protection
measures and
testing only if
situation demands Once initially
for community
wells Pollution usually
expected
to occur
Covered well.
Shallow tubewell
with handpump Sanitary
protection
measures and
testing only if
situation
demands Once initially.
Thereafter as
situation
demands Testing needed when
Environmental
conditions
change or when an
outbreak or increase in
waterborne disease
occurs
Deep tubewell
with handpump Once initially.
Thereafter as
situation
demands Once initially.
Thereafter as
situation
demands Testing needed when
environmental
conditions
change or when an
outbreak or increase in
waterborne disease
occurs
Springs and piped
supplies Once initially.
Thereafter as
Situation demands Test periodically for
residual
chlorine if water is
chlorinated Testing needed when
environmental
conditions
change or when an
outbreak or increase in
waterborne disease
occurs
Community
rainwater
collection
systems Sanitary
protection
measures and
testing only if
situation
demands Not needed
Source: Adapted from WHO Guide lines for Drinking-Water Quality Volume
III. Second Edition, Geneva, 1985.
We would recommend that you refer to the WHO website (www.who.int) for
the latest advice regarding sampling and analysis of water supplies.