Both of these records should be prepared in
duplicate, and both should be summarized at the end of
the month. The original should be retained on file and the
carbon copy forwarded to the district public works officer
not later than the tenth of the following month. Activity
files should include records of the current and two
Keep forms clean, concise, and hand print with a
pencil or a pen so as not to smear. Information on forms
must be understandable and legible for future reference.
Constant reference is made to the data as a means of
checking and increasing plant efficiency. It provides a
control measure to obtain the maximum efficiency of
operation and to SAVE, not WASTE, chemicals used in
Why is water analysis, through water testing,
done during treatment?
What are the two types of water tests used to
determine chlorine residual?
On the pH scale, what does a reading of 7
You are performinga chloride test and have used
2.5 ml of AgNo3 in a 25 ml water sample . What
will the ppm of chloride be?
What is the purpose of the jar test?