. Water & sewage works . etermining its wholesomeness; andthe presence or absence of the colon bacil-lus, which is indicative of recent sewageor animal pollution, is an important still more important index is the quanti-tative analysis for colon bacilli, by whichis indicated the amount of sewage pollu-tion. No sharp distinction can lie draionhetween a safe and an unsaie water. Theanalysis must fie considered in connectionwith all conditions relating to the sourceof the sample and its subsequent treat-m ent. The physical characteristics of the fil-tered water are an important factor als
. Water & sewage works . etermining its wholesomeness; andthe presence or absence of the colon bacil-lus, which is indicative of recent sewageor animal pollution, is an important still more important index is the quanti-tative analysis for colon bacilli, by whichis indicated the amount of sewage pollu-tion. No sharp distinction can lie draionhetween a safe and an unsaie water. Theanalysis must fie considered in connectionwith all conditions relating to the sourceof the sample and its subsequent treat-m ent. The physical characteristics of the fil-tered water are an important factor alsoin determining the efficiency of must be free from turbidity, color,tastes and odors in order to be consid-ered satisfactory or wholesome. Althoa water will not directly cause diseaseon account of its poor physical character-istics, it will not be depended upon fordrinking by any large number of peopleand may, therefore, necessitate the use ofwell waters which are often contaminatedtho clear in m WORKERS INTHE FIELD Rates for Berkeley, Cal., ElectricLight The Editor of Muxicipai, Engineering: Sir—In the early days the city of Berke-ley owned a municipal electric lightingplant. This has depreciated until prac-tically nothing is left of the old Pacific Gas and Electric Companysupplies us with electric power and lightand attached hereto is a copy of an ordi-nance fixing the rates for the comingfiscal year. The company pays to the cityfor the lease of the old plant and privilegeof doing business in this city 3 per cent,of its annual income. This income ispractically $7,000 per year, which we re-ceive in the nature of rent for the use ofour old electric lighting plant. W. J. Clerk, Berkeley, Cal. The ordinance follows: Be it ordained bj the council of thecity of Berkeley as follows: Section 1. That the rates of compensa-tion to be collected by any person, firmor corporation in supplying electric cur-rent to the inhabitants of the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsewerage, bookyear191
