Laserfiche WebLink
1.4 <br />2 <br />Existing Water Towers <br />The City of Ramsey currently has three water towers with storage capacities of 0.5 MG (tower 1), <br />1.5 MG (tower 2), and 2.0 MG (tower 3). Towers 1 and 2 are located in the south-eastern and <br />south-central parts of the City respectively, while tower 3 is located in the north-eastern part of <br />the City. The 0.5 MG tower is a spheroid style steel water tower constructed in 1989, while the <br />1.5 MG and 2.0 MG towers are fluted column steel water towers constructed in 2000 and 2010, <br />respectively. <br />Distribution System Modeling <br />A hydraulic computer model was generated to evaluate the performance of the City's current <br />water distribution system, as well as evaluate the system into the future as the water system <br />expands, experiences increasing demands, and utilizes a water treatment plant instead of <br />individual wells pumping into the system. The model used the most recent GIS information for <br />the City's water system assets, and was created using WaterGEMS®, a pipe network program <br />developed by Bentley®. Flow testing was conducted within the distribution system in October <br />2019 to calibrate and help verify the accuracy of the computer model. A summary of the flow test <br />results and locations are listed in Table 2. <br />The water model allows the water system to be examined, while adding proposed features to the <br />system. This provides an indication as to what pressures and flows would be available in the <br />water system with the various proposed features. The model also allows for the examination of <br />component operation within the system such as water tank filling cycles. There are many other <br />exercises that the model can be used for in the future in relation to water system operations and <br />planning. The water model can continue to be an operations and planning tool for the expanding <br />water system. <br />Table 2 — Hydrant Flow Test Results <br />to <br />Test <br />Location <br />Field <br />H dran <br />y <br />Flow <br />(gp <br />' ressur:- <br />Differential <br />Field <br />Results <br />(psi) <br />Pressure <br />r ifferential <br />Model <br />Results <br />(psi) <br />Pressure <br />r ifferential <br />(psi) <br />1 <br />Olivine St. NW south off of 147th Ln. NW <br />1,171 <br />2 <br />1 <br />-1 <br />2 <br />Dead-end on Vanadium St. NW <br />1,123 <br />4 <br />2 <br />3 <br />Dead-end on 140th Ave. NW <br />1,205 <br />8 <br />10 <br />2 <br />4 <br />Dead-end on 142nd Ln. NW <br />984 <br />26 <br />42 <br />16 <br />5 <br />Corner of Tonto St. NW and Alpine Dr. <br />NW <br />1,188 <br />4 <br />6 <br />2 <br />6 <br />Dead-end on 152nd Ave. NW <br />1,047 <br />9 <br />7 <br />-2 <br />7 <br />Corner of 157th Ave. NW and Krypton St. <br />NW <br />1,152 <br />7 <br />9 <br />2 <br />8 <br />Dead-end on Lithium St. NW <br />1,047 <br />7 <br />8 <br />1 <br />9 <br />Dead-end of east end of 167th Ln. NW <br />1,197 <br />4 <br />2 <br />-2 <br />10 <br />Dead-end of new cul-de-sac off of 159th <br />Ave. NW <br />1,078 <br />6 <br />7 <br />1 <br />FEASIBILITY STUDY RAMSY 154354 <br />Page 3 <br />