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Volume 6, 1873
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Report on, and Analysis of, the Water with which it is proposed to supply Shortland and Grahamstown. From the Colonial Laboratory, was communicated by His Honour the Superintendent

2. The following Report on, and Analysis of, the Water with which it is proposed to supply Shortland and Grahamstown, forwarded by Dr. Hector from the Colonial Laboratory, was communicated by His Honour the Superintendent:—

“27th May, 1873.—Character of Water.—Clear, tasteless; a slight sediment had formed, the character of which was not examined. The water, separated from this and analyzed, gave the following results, calculated upon a gallon of it:

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“Chlorine 1.551
“Sulphuric acid .354
“Carbonic acid 1.783
“Magnesia .665
“Lime .308
“Soda and potash 2.772
“Silica 2.857
10.290

“Organic matter—the average of two determinations—2.1 grains per gallon.

“Amount of readily oxidizable matters per gallon, .384 grains.

“The bottles enclosing samples being closed with corks, instead of glass, as should always be done, the results have not that degree of value they would otherwise have.

“The quantity of readily oxidizable organic matter is probably a little too high, as here given, owing to the presence of a little sulphuretted hydrogen in the water tested, from the cork having deoxidized a portion of the sulphuric acid present in the water, and for this reason the quantity of this acid, as stated in results, will be less than it really is.

“However, subject to these errors, the water proves to be of fair quality, but inferior to some waters for brewing purposes, owing to a deficiency of lime salts.”