2768 Report, Louis E. Hawes to Water Committee, April 7, 1902

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/bUIS E. HAWES, f AND HYDRAULIC ENGINEER. ,1EMONT BUILDING. BOSTON, MASS. ..................Bo.s.t.o.L.l'......Mas-s.....,.......................................................... /i Apr 7. 1 ..... s902. Chairman Water Committee, Lexington, Mass. .. Dear Sir:- I have the pleasure of reporting that the work of T. Stuart & Son Co. , under contract of October 14, 1901 was completed April 4th and is now ready for the inspection of the Committee. Collecting Basin. The Collecting Basin has been in use since the last day of March at which time it, was full and overflowing, wells 6 and 7 being necessarily full to cause it, as no other water had access to collect ing basin at that time o The Collecting Basin when full holds 17 �� U` 6 gallons. To demonstrate the compensating value of the collecting basin in connection with wells 6 and 7 the quantity of water pumped during two dd�,Ts was determined when no other water was admitted to the basin. From 8:15 A.M. April 1, to 8:15 A.M. April 2, the estimated quantity pumped was 130,000 gallons drawing the water in the basin down only 1.7 feet and leaving I J �,2'1'5, gallons of water in the basin. From 8:15 A.h.'I. April 2, to 10: 08 A.M. April3, the quantity pumped as determined by counter records was 233,725 gallons, drawing the water down 7.7 feet and leaving j 7,G?� gallons still in the basin. During this day a small quantl,ty, about, 4,300 gallons ran into the basin from the deep well by gravity, which owing to no pumping having been done from it for some time, acts like an artesian well, the water rising about five feet higher than high water in ,� well 1. Tis water constituted the town' s supply for the two daNTs.