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#19 Revisions to electrical to accomodate instrumentation furnished in contract Part II +$13,855.00 #20 Substitution of Detroit Diesel Generator -$2,470.00 All the changes had been reviewed with the Utilities Division and were seen to be necessary for various reasons. It should be noted that the cpn3truction work is in the final stapes with only one further change anticipated. As pointed out in the Sverdrup and Parcel attachments, these total changes of an added $23,769.89 cost represents much less than a 1% change of their contract (.69%, to be specific). ALTERNATIVES & ANALYSIS In the field, in the course of construction, there were numerous decisions made as to many of the changes. Most of the changes required on the spot decisions in order not to deter the project from remaining on schedule. As mentioned above, most of the changes were required by various regulations. Information as to the major changes is as follows: Item 5 - Reducing the class of ductile iron pipe reduced its thickness and therefore cost - while remaining within acceptable specification for pressure and water main acceptability. This resulted in a saving of $5,495.10. Item 18 - Add FRP reducers for flowmeter installation. These reducers will improve the accuracy of the flowmeter, at initial flow conditions, plus the use of these reducers will save a larger increase in cost when the plants production capacity is increased in the future. The savings are expected to be much larger than the $5,083.00 cost of this change. Item 19 - Revisions to electrical to accomodate instrumentation furnished in Contract Part II. This added cost of $13,855.00 is associated with the changes required by Part II by Water Services of America. For some of those changes there was either a Part II change of components or instrumentation which represents an improvement in quality, safety or reliability and/or a saving in cost to the Part II contract. Item 20 - Substitution of Detroit Diesel (Allison) generator. Without a loss of reliability this auxiliary generator was selected with a reduc- tion in cost of $2,470.00. RECOMMENDATION & FUNDING Staff recommends that the Board of County Commission approve the attached change order No. 1 to Part III contract. The chairman should be authorized to sign the 5 original copies for the consulting engineer to process through Farmers Home Administration to fund the change from the project contingency of $95,000. AUG 181982 MOTION WAS MADE by Commissioner Lyons, SECONDED by Commissioner Bird, that the Board approve the Change Order as recommended by the Utilities Manager in his August 11, 1982 memo, and authorize the signature of the Chairman. 40 go 51 PACE9