File:Annual report of the State Board of Health, Lunacy, and Charity of Massachusetts (1880) (14781733242).jpg

Identifier: annualreportofst04mass (find matches)
Title: Annual report of the State Board of Health, Lunacy, and Charity of Massachusetts
Year: 1880 (1880s)
Authors: Massachusetts. State Board of Health, Lunacy, and Charity
Subjects: Hygiene, Public Food adulteration and inspection Leprosy
Publisher: Boston : Rand, Abery
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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antities of pipe of thatsize, straight enough to admit of inspection between man-holes placed 250 feet apart, was so great, that six-inch pipewas selected as the minimum size. Actually constructed, the sewers vary in size from sixinches to eighteen inches in diameter, and are, so far as pos-sible, laid with tight joints, excluding all ground and sur-face water. At the present time, the only water purposelyadmitted to any of the pipes, other than house sewage, isthe rainfall from the roof of one school-house, that coversan area of 1,300 square feet. This was connected, as thatpart of the sewer was what is termed a dead end and re-ceived the sewage from one house only. It is believed that the pipe system at Nahant representsto-day the only thorough system of separate sewers in thiscountry. They certainly can be pointed to as the only sys-tem of separate sewers that are operated without publicwater of any description, and that in certain sections have 1883.) THE SEWERAGE OF NAIIANT. 221)
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230 DEPARTMENT OF HEALTH. (July, \J3M3S 3dtd -%- o 05 o 1883.) THE SEWERAGE OF NAHANT. 231 only a very limited supply of even well and cistern water.From their method of* construction, however, as litis beenshown, every portion of the system is capable of being, andactually is, inspected periodically. Every length of pipecan be examined and cleaned, not only by flushing, but byscrubbing with wire brushes. When it is desired to flush any line of pipe, a sand bag is usedas a plug for the outlet of a manhole, which is then filled withsalt water by the town water-cart,—rather a primitive fash-ion of procedure, but one that it was decided to adopt, tem-porarily, during the first season, or until it should be dem-onstrated by actual experiment where flush tanks should belocated and what their size should be. As a rule, waterenough is put into the manhole in question to make a solidwater plug, as it were, for forty feet of the sewer, below themanhole. The flushing by this crude m

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