26 SEWER DESIGN 



RULES AND REGULATIONS FOR THE PREPARATION AND 

 SUBMISSION OF PLANS FOR SEWERAGE SYSTEMS 

 AND SEWAGE-DISPOSAL WORKS 



As Enacted by the State Dept. of Health of New York State, 1912 



1. General Plans. General plans on a scale of not less than 300 

 feet to one inch, and preferably not greater than 100 feet to one inch, 

 covering the entire area of the municipality, must accompany every 

 application in the case of a new sewer system, or any extension or modi- 

 fication of any existing sewer system, unless such a general plan of the 

 entire area of the municipality has already been submitted. These plans 

 must have shown upon them all existing and proposed streets, the surface 

 elevation at all street intersections and at all points where changes of 

 grade occur, and contour lines for intervals of not less than 5 nor more 

 than 10 feet. The plans must also show sewers upon all streets in the munic- 

 ipality or the sewerage district, even if the construction of some of the 

 sewers may be deferred. Should there be areas, which on account of 

 the topography, or for other reasons, cannot drain into the proposed 

 system, a definite statement to this effect must be made in the engineer's 

 report and the probable future drainage of this disregarded territory 

 discussed. The plans must also show clearly the location of all existing 

 "sanitary" and "combined" sewers, but not of drains used exclusively 

 for sub-soils or for surface-water; the location and general arrangement 

 of existing and proposed sewage-disposal works, and the location of all 

 existing and proposed outlets. The magnetic meridian, title and date, 

 and the direction of flow and mean-water elevation of the principal streams 

 must also be clearly shown. 



2. Lettering, Figures and Symbols. The lettering and figures must 

 be of appropriate size, and of distinct outline. Surface elevations should 

 preferably be placed just outside street lines opposite their respective 

 positions, and at street corners, preferably in the angle outside street 

 line, in the upper right angle if but one, and in the other angles if mote 

 than one. The elevations of all sewer inverts must be shown at street 

 intersections, at the ends of all lines, and at all points where changes in 

 alignment and grade occur. These elevations must be clearly and dis- 

 tinctly written close to the manhole or flush-tank, parallel with sewer- 

 line, and expressed at least to the nearest i iV foot. All manholes, flush- 

 tanks, catch-basins, lampholes and other appurtenances must be shown 



