Agenda - Parks and Recreation Commission - 04/10/2014

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Projected land use in the rural transition area was based on the following assumptions: • Existing one -acre lots could be split in two. • 2 %2 to 5 -acre lots could be subdivided into three parcels. • Parcels larger than 5 -acres could be subdivided with a density of 2.5 units per acre. Rural: This planning area consisted of the land north of Trott Brook. The 1991 Comprehensive Sewer Plan considered this area to be permanently unsewered. D CURRENT PLANNING To verify that past assumptions are still appropriate, City staff reviewed the land use planning assumptions that were identified in the 1991 Comprehensive Sewer Study. Based on this review, development densities have been modified to reflect current land use planning efforts. The major change from previous planning efforts is the inclusion of various multi -family developments with densities ranging from 7.0 to 15.0 units per acre and a change to the population projection from 3.2 to 3.0 people per unit. In addition, based on current communications with the Metropolitan Council, the City of Ramsey is now considered a "Developing Community" which eliminates the constraints of the MUSA Line. The City of Ramsey can now extend sanitary sewer service anywhere within MWCC's Sanitary Sewer District 3 boundary (south of Trott Brook) as long as the added flows do not exceed the City's current capacity allocation of 3.8 mgd. E. ULTIMATE SANITARY SEWER SERVICE AREA The sanitary sewer service area south of Trott Brook contains approximately 9,964 acres of developable property. It is anticipated that at ultimate development this area can support approximately 24,710 residential units with a maximum population of 74,130 based on 3.0 people per unit. The ultimate sewer flow for the area south of Trott Brook is estimated to be 7.32 mgd. This total consists of 5.66 mgd residential flow, 1.59 mgd commercial / industrial flow, and 0.07 mgd of special use flow. At this time it is proposed that the two existing 30 -inch City of Ramsey Page 2-4 Comprehensive Sanitary Sewer Plan - 2004 Prepared by Bolton & Menk, Inc.