Agenda - Council - 05/13/2003 - Laserfiche WebLink

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-154- Purpose of Report On November 8, 2002 a petition from Oak Terrace Estates, was presented to the City Council requesting that a study be prepared which would determine the feasibility of extending city sewer and water services to th/s mobile home trailer park located along %1-I. 10. In response, the City Council adopted Resolution 02-11-295 directing staff to prepare such feasibility study. It is the purpose of this report to comply with the Petition requesting the Council directive contained in Council Resolution 02-11-295. Because the storm drainage is also problematic within the trailer park, the scope of this study will also include the addressing improved storm water needs a s w ell a s sanitary s ewer and water improvement. This report will also address financing of'improvement costs in accordance with City Code Chapter 4.60 which relates to special assessments for improvements of this nature. Existin~ Conditions The Oak Terrace Estates Mobile Home Park is located on a 6.7-acre parcel on the north side of Highway 10 approximately 1000 feet west of Sunfish Lake Boulevard. The park consists of 89 single family trailer units, one single family frame home, two laundry buildings and one office/laundry building. The parcel immediately east of the park is serviced with both city sewer and watermain. The eight-inch watermain on this adjacent eastern parcel has been stubbed to the southeast corner of Oak Terrace Estates. The sanitary sewer is located approximately 510 feet east of the northeast corner of Oak Terrace Estates. The development a~eement between the City and the Sunfish Commons subdivision requires the owner of Lot 1 of the subdivision to extend the sanitary sewer to the Oak Terrace property at such time as an access road is constructed. A copy of this a~eement is attached in Appendix B. Sewer and water is also available to this parcel from the west, however, the adjacent parcel to the west does not have municipal service available. The sanitary sewer to the east is deep enough to service Oak Terrace by ~avity. The sanitary sewer to the west is 4.5 feet higher and would require insulating portions of the sanitary sewer to prevent freezing. Oak Terrace is currently serviced by on-site sanitary facilities, which consists of septic tanks, cesspools and drain fields. Many of these facilities such as the cesspools do not meet current standards for sanitary facilities. The existing sanitary facilities are illustrated in Figure 1. The frequent necessity for pumping suggests that the existing sanitary facilities are not functioning properly. Oak Terrace is serviced by two six-inch wells each capable of pumping 55 g-pm and a pressure tank located within the well house building. The pressure of the system ranges between 45 a~d 65 psi. Service is provided within the park through a distribution, system of copper pipes ranging in size from 1 ½ inch to 3/4 inch in diameter. The existing water system is illustrated in Figure 2. Storm water drains overland and flows in all four compass directions. Flow running to the south collects in the Highway 10 ditchline. Flows to the east, west and north drain into storm sewer I I I I I I I I I i I i I I I I I I I