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Mr. Steve Gillette January 27,2006 Page 2 of5 new gravity sanitary trunk sewer. It also examined the potential elimination of the lift stations at Sens Road and North D Street, and Sens Road and North L Street. Subsequent to the 0301PER, a 42-inch diameter gravity sanitary trunk sewer was constructed along Bay Area Boulevard from Fairmont Parkway to Spencer Highway, and a 36-inch diameter gravity sanitary trunk sewer was constructed along Sens Road from Spencer Highway to North D Street. The lift station at North D Street was eliminated. The Harris County Public Infrastructure Department's Engineering Division has two engineering design contracts currently underway for the widening of Sens Road. Binkley & Barfield Consulting Engineers, Inc. (BBI) is designing Sens Road from 300-ft. north ofSoencer HiJ!hwav to 300 ft. north of North H Street. and Van De Wiele Engineering, Inc. (VEl) is designing Sens Road from 300 ft. north of North H Street to 300 ft. north of North P Street. The City of La Porte wants to build upon the findings and recommendations of the 0301 PER, and the BBI and VEl designs and investigate both extending the gravity trunk sewer along Sens Road from North D Street to North P Street, and extending gravity sewer mains east and west along the intersecting streets (North D, West Barbour's Cut Boulevard, North H, North L and North P) to the furthest feasible extent. The primary goal of the investigation is to redirect sewage flows which are currently being diverted, and in some cases pumped, through other service areas to other trunk sewers, into the proposed system as was originally intended in the Plan. By so doing, the secondary goal of the investigation will be realized: eliminating a') many of the city's existing wastewater lift stations within these service areas as possible. The City of La Porte wants to construct the Sens Road portion of the proposed gravity sanitary trunk sewer, as well as a new 12-inch diameter water main (and abandon an existing 6-inch line) prior to the construction of the County's roadway projects. Once constructed, the gravity trunk sewer and water main must coexist with the drainage and roadway improvements such that all can be maintained. Scope of Services 1) Obtain available Sens Road topographic survey data from the BBI and VEl projects. 2) Supplement the topographic survey data in Item 1 with additional, limited topographic survey data (using GPS methods on the same datum) along the intersecting streets and within the service areas. The data shall include but is not limited to: ~nDe~ele Engineering Incorporated