Ontario Provincial Board of Health Annual Report, 1913
Reports of the Provincial Sanitary Engineer, M.D. pg. 50
Ottawa (Perley Home), June 6th.
Upon request of the Ottawa Land Association and of the City of Ottawa, a visit of inspection was made to the proposed site for the sewage disposal plant for the Lady Grey Sanatorium at Ottawa. The land available for the sewage disposal area, between the sanatorium and the creek, has very little surface and is underlaid by impervious rock. It seemed advisable to recommend the use of a built-up area on this tract for sewage disposal purposes, although there was a possibility that the tile could be laid within the hospital property in the north-west corner near the new Annex. For the convenience of the parties interested the following proposals were submitted :
- That 23 rows of 4 in. tile, 100 feet long, 18 in. apart, will be all that is required.
- That these tile be fed from a syphon chamber of not more than 170 cubic feet capacity and not less than 100 cubic feet capacity between syphon discharges.
- That a sludge tank be arranged to provide storage for three cubic yards of sludge and that it be cleaned twice a year and have in addition a flow chamber capacity of 100 cubic feet, the flow to be suitably baffled to prevent undue agitation.
- That the tile be laid with 6 in. of gravel surrounding them, 18 in. of sand or loam underneath and from 2 ft. 6 in. to 3 ft. of earth and sand on top.
- With regard to the matter of the city supplying sewerage convenience to the hospital, I think we should not tie the city up to any definite route — simply ask them to proceed with it at their earliest convenience along the most desirable route.