ReportD. Johnson, printers, 1901 - 127 pages |
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Common terms and phrases
alum alumina American River annual bacteria boilers building capacity cent cesspools Chairman city mains City of Sacramento clear water basin clear water reservoir coagulant diameter East Side expense F. E. Smith feet deep filter house filter plant filtered water filtration flow furnished gallon pumps gallons of water gallons per day GRAU ground water ground water supply hardpan Hering-Yes high service pump horse power Howard Stillman installed land Lewellyn Tozer located low service pump mechanical filters mento mile million gallons miner's inches mortar necessary North Fork Ditch obtained operation Orangevale percolates pipe system plans pollution pounds present proposed pump room pumping engine pumping station purify quantity of water question raw water reason recommend roof Rudolph Hering Sacramento River water sand settling basins settling tanks steam strata Street sub-committee sufficient surface condensers surface water suspended matter tion TOM SCOTT turbid underground Water Investigation Committee water level
Popular passages
Page 64 - The materials for concrete to be cleaned from dirt and dust before being used ; to be mixed dry in proper boxes in the following proportion : One part by measure of cement to two parts of sand and five parts of broken stone. The sand will be put into the box first, and spread out ; the cement will be spread over the sand then, and both will be turned over three times to assure a uniform mixture. The stone, having been well wetted, is next added, and all ingredients are turned over twice with...
Page 22 - ... Respectfully submitted, A. MEISTER (Chairman). D. McKAY. DOUGLAS A. LINDLEY, HERMAN H. GRAU. LEWELLYN TOZER. Committee on Wells. Report of LJ LeConte on East Side Wells. SAN FRANCISCO, Cal., January 29, 1900. Mr. A. Meister, Chairman Committee on Wells, Citizens' Water Committee, Sacramento, Cal.—Dear Sir: In compliance with your request, I have now the honor to submit the following brief report on the final results obtained during the recent pumping tests, made under your directions, to determine...
Page 64 - ... walls. It is always well to disconnect towers. When dry clay rammed around foundation walls becomes wet, it has a tendency to bulge them. All buildings settle a little, if from no other cause than the weight of the walls and floors. Shifting clay bottoms that are very insecure have been built upon by laying round timbers, one foot apart, on concrete ; the space between the timbers being laid with concrete, and filled to the top of the logs, to receive stone-slab footings. This method will do...
Page 110 - December, 1899, showing the topographic and hydrographic features of the East Side district, you will observe that the width of the belt of underground flow which was intercepted during the welltesting operations in January, 1900, was about one-half mile only. Farther south in continuation of the line of wells, we have the same water-bearing strata extending for a distance of 1.5 miles at least. This underground flow was entirely unaffected by our pumping operations and is certainly available for...
Page 80 - ... the fact that the raw water at Washington is more turbid than the raw water at the places where sand filters have been generally used. Our knowledge as to the results that can be obtained by mechanical filters rests more upon experimental evidence than upon results obtained in practice. Nevertheless, these investigations have been made upon su'ch a scale and with such care as to give the greatest confidence in their results.
Page 80 - American filters are preferable. If the Potomac waters were more turbid, or turbid for longer periods than the records show, mechanical filters would unquestionably have the preference. If it were less turbid, or if turbid periods were of shorter duration, the advantage would clearly lie with sand filters. "Our knowledge as to the results that can be obtained by mechanical filters rests more upon the experimental evidence than upon results obtained in practice. Nevertheless, these investigations...
Page 67 - ... and provided with the necessary stairs and railings. (8) WINDOWS AND DOORS. All door frames shall be of first quality pine, of customary construction ; the large doors are to be double doors. Window frames shall be box frames with the exception of the frames in the monitor and the upper half of the windows of pump house and boiler house. The window frames in the monitor to be fitted with swing sash, as shown. All double hung windows to be provided with strong turned iron sash pulleys, sash cords...
Page 126 - ... number of instances the annual savings amount to $125,000, and in five to six years fully cover the entire cost of the water supply. As to fire insurance rates, we find that the financial value of enhanced fire risk and additional premium charged on the most favorable buildings is 60 per cent without water works and 40 per cent if only fire cisterns are provided, and still less for more extended improvements.
Page 34 - ... sulphuric acid which combines with the calcium carbonate or lime present in the raw water. There should always be an excess of lime in the water. If, however, for any reason there is not, there is nothing to combine with the sulphuric acid, and decomposition of the sulphate of alumina is not complete, and a portion of it goes undecomposed into the effluent. The effluent then has an acid reaction, and is unfit for domestic water supply. When distributed through iron pipes, it attacks the iron,...
Page 102 - And yet in that very city, and on the higher grounds where all the wealthy people live, the cesspools were dug down directly into that same stratum of sand through which this water flowed down to the lower parts of the city. When I was examining that city, I had a small keg of coal oil put into a cesspool on one of the lots up town, and within a few days the pumps below were complaining because the water of the wells tasted of coal oil. You must not get your cesspools down deep enough, so that this...