THE CORPORATION OF THE CLTY OF PORT COQUITLAM MEMORANDUM MEMO TO: D. Reicken Acting City Engineer MEMO FROM: S. Brown Ass't Operations Manager SUBJECT: Scarborough Watermain -_ — — Please’ be advised that a detailed estimate of the Scarborough watermaia has now been completed. A number of additions have been made to the design drawings from the conceptual sketch originally submitted, increasing the construction costs for the project. A summary of additions are included for your review: lL. 7 - meters of additional 150 ¢ watermain 17 x 105 = $1785 1 - additional fire hydrant $2000 4 = additional water service transfers 4 x 410 = $1640 Total $5425 It is recommended that the water services be replaced utilizing polybutelene pipe to property line. The age of the existing services is approximately 25-30 years old. Test digs of services imlicates that the ground in the area is highly corrosive in comparison with other areas of the City; thereby reducing the life expectancy of the copper lines. The consequences of not expending the additional funds now may well require crews to replace services after the new asphalt has been completed. The proposed _ installation of new services would rasult in an additional cost of $15,900. A summary of the costs are listed as follows: Scarborough Watermain (revised estimate) Original estimate without design drawings $114 ,000 Additions to original conceptual sketches $ 5,425 Proposed water service replacement $ 15,900 . $135,325 Respectfully subnitted a ee a) D nha en oe Steve Brown Ass't Operations Manag SB/al ec G. Vonceina