Report of the Citizens' Water Investigation Committee of the City of SacramentoD. Johnston, 1901 - 127 Seiten |
Andere Ausgaben - Alle anzeigen
Report of the Citizens' Water Investigation Committee of the City of ... L. Tozer Keine Leseprobe verfügbar - 2015 |
Report of the Citizens' Water Investigation Committee of the City of ... L. Tozer Keine Leseprobe verfügbar - 2018 |
Häufige Begriffe und Wortgruppen
alum alumina American River bacteria boilers building capacity cent cesspools Chairman Citizens city mains City of Sacramento clear water basin clear water reservoir coagulant cost D. A. Lindley diameter East Side estimate 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 horse power Howard Stillman installed land Lewellyn Tozer located low service pump mechanical filters mento mile million gallons miner's inches necessary North Fork Ditch obtained operation Orangevale P. C. Drescher percolates plans pollution pounds pump room pumping engine pumping station purify quantity of water question raw water reason recommend roof Rudolph Hering Sacra Sacramento River water sand settling basins settling tanks source of supply steam strata sub-committee sufficient surface condensers suspended matter tion TOM SCOTT turbid underground Water Committee water level
Beliebte Passagen
Seite 6 - ... 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...
Seite 48 - 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...
Seite 115 - CECIL H. GREEN LIBRARY STANFORD UNIVERSITY LIBRARIE STANFORD, CALIFORNIA 94305-6...
Seite 66 - 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...
Seite 48 - The piles shall be driven until they sink not more than three-fourths of an inch under each blow frori1 a 120o-pound hammer falling twenty (20) feet. The foundations for the settling tanks are made by laying round timbers, one foot apart, on concrete; the space between the timbers being laid with concrete and filled to about six inches above top of logs. (3) CONCRETE MASONRY. The concrete shall be made by mixing cement, sand and clean screened gravel or broken stone, and water. The cement used shall...
Seite 18 - The effluent then has an acid reaction, and is unfit for domestic water supply. When distributed through iron pipes. it attacks the iron, rusting the pipes and giving rise to all the disagree-able consequences of an iron-containing water. The amount of lime in the water at any time available to combine with the sulphuric acid can be determined by a very simple chemical operation, and has been so de-termined at frequent intervals during the course of our experiments. The amount of sulphate of alumina...
Seite 112 - Note.—Price includes boxes only for sizes below 16-inch, setting being included in pipe laying. FINAL REMARKS. In conclusion, I would respectfully call your attention to the great financial importance of a good pipe system and efficient fire hydrant service. Good fire hydrant service demands 150 feet net pressure in densely built portions of city, while the suburbs should have at least 100 feet net. Experience all over the Union shows that by the introduction of water works with good pipe systems...
Seite 51 - ... 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...
Seite 88 - ... to buy. There was a committee appointed to take testimony on the valuation of the supply. I was one of the witnesses for the city. My testimony was to this effect, that, in fifteen years, the population would have increased on that territory to such an extent—I forget now how many per mile—that the water would no longer be fit to use, because there would be so many cesspools, sewers and all that to pollute the ground water. That water to-day is almost objectionably polluted. A valuation which...
Seite 18 - The quantity of sulphate of alumina (alum) that can be used is dependent upon the amount of lime in the raw water. When sulphate of alumina is added to water, it is decomposed, with the formation of alumina, which forms a flocculent precipitate, upon which its purifying action depends,and 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...