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Home My WebLink AboutCC 06-20-1984 Minutes of Council Workshop Meeting Village of Arden Hills Wednesday, June 20, 1984 - 7:00 p.m. Village Hall Call to Order Pursuant to due call and notice thereof, Mayor Woodburn called the meeting to order at 7:08 p.m. Roll Call Present - Mayor Robert Woodburn, Councilmembers Dale Hicks, Michael Christiansen, Kathleen Rauenhorst, Thomas Mulcahy - None - Engineers Norm Hendrickson, Donald Christoffersen, Treasurer Donald Lamb, Public Works Supervisor Bud Johansen, Public Works Committee members, Clerk Administrator Charlotte McNiesh, Deputy Clerk Dorothy Zehm . Absent Also Present Water Tower Needs Assessment - Engineer Norm Hendrickson Council was referred to a data package, copies of which were distributed to Council. Hendrickson explained that the population figures used were based on the Comprehensive Plan population study made by the City Planner; based on this study, the 1983 estimated population connected to the Arden Hills water system is 6,350; noted that the estimated population connected in 1994 is projected at. 10,200 after deducting population of direct connections to Roseville (295) and the mobile home park (873). Hendrickson referred Council to actual Arden Hills water pressure chart indicating water levels and water consumption at Arden Hills' tower on August 6, 1983. Hendrickson noted that between 6:30 a.m. and 11:00 p,m., when pumps are pumping, pressure drops to 40 psi (considered a low pressure for industrial areas). Hendrickson explained that he chose August 6th because it is a Saturday, when there is not much industrial use, but a good water use day. Hendrickson reported that the Roseville booster station (Arden Hills' water source) is capable of pumping in excess of the Roseville/Arden Hills fire demands as recommended by Insurance Services, which are: - 4000 gpm for 5000 gpm for 3000 gpm for 4 hours to 5 hours 3 hours Industrial is considered a reasonable fire demand for a city of the nature of Arden Hills, according to Hendrickson. Hendrickson noted that insurance rates are based on the City's rating class. Arden Hills currently is class 6. It was noted that the lower the class the lower the rate; probably a class 6 because of volunteer fire department status. Hendrickson noted that cities are not required to provide for fire demands; noted these are the figures recommended by fire underwriters. . Hendrickson noted that consumption by Arden Hills & Roseville combined was 11,066,652 gallons, on 8/6/83; 15.2% of this consumption is the estimated consumption of Arden Hills based on the 6350 population figure (1,682, M gallons); noted that it is common practice to store an average day's water usage. Peak hour, maximum day and average day Arden Hills water consumption were noted by Hendrickson as well as the estimated consumption anticipated for a maximum day plus fire demand, and for a maximum day plus fire demand with arsenal connection. Hendrickson referred Council to chart showing peak hour daily consumption compared with peak hour consumption with arsenal connection. Minutes of Council Workshop Meeting Wednesday, June 20,1984 - 7:00 p.m. Page Two Combined Roseville and Arden Hills Water Use Records of August 6, 1983 were reviewed by Hendrickson, noting the approximate percent of one day's water needs the City would have with a 1.5 MG tank and with a 1.0 MG tank, together with the existing storage tan~ should a complete power failure occur at the Roseville booster station under the given circumstances outlined. 1.5MG tank - 65% 1.0MG tank - 47% Hendrickson explained that a 1.0 million gallon tank is needed now, to provide for the recommended fire demand; if arsenal is connected, a 1.5 MG tank would be needed. 4It Hendrickson explained that the Roseville pumps have the pumping capacity; the pumps are not the problem; sufficient storage of water for the community's daily needs, peak hour needs and fire demand, and possibly the connection of the arsenal to the system are the reasons an additional storage tank is needed; noted that Roseville can satisfy Arden Hills' and the arsenal's needs; Roseville pumps from St. Paul's 20,000,000 gallon storage at McCarrons. It was noted by Hendrickson that power failures are probable and have happened; tornadoes are possible (could be out .of power for several days, possibly). Hendrickson explained that pressure will not be increased in Arden Hills because of an additional storage tank; noted that pressure varies in different areas of the City now - a new tower will not affect this pressure. c:V Hendrickson noted that ' 12" main was installed south of County Road D in Roseville, in a two block area. ' . , . L. There is a question whether this 12" main may have to be replaced. The time frame for Council consid'eration was suggested to be whenever Council desires. It was suggested that perhaps Council would like to have response from the arsenal first and recommend- ations from the Public Works and Finance Committees. Hendrickson estimated the tower construction would take 1~'-2 years; depending on season construction started. Mulcahy said he felt more information is needed; doesn't feel data on one day's records is sufficient to make a determination. Preliminary Schematics of Future Hamline Avenue Improvements - Engineer Donald Christoffersen Christoffersen referred Council to drawing of two options which he proposes to present to the Highway Department for improvement of the Hamline/I-694 intersection. Christoffersen said his preference is the option which stops the ramp traffic at Hamline, with a right angle turn from the ramp onto Hamline (instead of the existing ramp which merges ramp traffic with the Hamline traffic~ Christoffersen explained that the other option he proposes to present for the Stat~'s consideration is re-routing the ramp from I-694 to County Road F, east of Hamline (thru the tower property) . 4It The proposed intersection improvement, Christoffersen explained will also provide for an acceleration lane from Floral Drive to the south, a left turn lane from the south to Floral Drive, a right turn lane into CPI and one thru-lane. Christoffersen said the other two options for the intersection appear to be - do nothing, or take out the ramp entirely. Council was also referred to cross-sections of various road width options, on which Christoffersen will need guidance from Council as to the street width desired for Hamline Avenue from about Eide Circle to Highway 96. . . ~ Minutes of Council Workshop Meeting Wednesday, June 20, 1984 - 7:00 p.m. Page Three Christoffersen noted that there are deep swamp areas along Hamline which he proposes to surcharge; suggested that the time to do this would be at the time of the Hamline/I-694 intersection improvement. Council authorized Christoffersen to present the option proposals to the State, with the understanding that Council will again consider the options for the intersection improvement before the State decision is made. (Rauenhorst left the meeting at 9:25 p.m.) Karth Lake Level Christoffersen reported that the level of Karth Lake has risen and residents are concerned about loss of trees; explained that there is no outlet from the lake. Christoffersen reported that Bob Todd has been taking lake level measurements. Keith Enrooth reported that he has already lost 4 Oak trees; other residents will also be losing trees because of the high water; suggested that pumping out about 1~'-2' of the water would help the lake residents; noted that lake is up about 2' since the ice went out - level has risen about 18" over the last two weeks. Bob Todd referred Council to water level data recorded between September 22, 1983 to June 13, 1984; noted that he canoed around the lake and observed that about 50 oak trees have died and many are right on the water's edge; suggested that if City is considering a pumping solution, it should be done now. Todd said the original plat of Karth Lake Estates shows the lake at 929.8 (1977); lake is now at 936.0, an increase in elevation of 6.2 feet. The lake area was estimated at 15 - 18 acres. It was queried whether it is reasonable to pump it, and, if so, would it be a temporary or permanent pump. Council requested that costs of pumping be obtained for Council's consideration at the June 25th meeting. Water Tower Antenna Proposal Woodburn reported on the possible request to use the water tower for mounting "whip antennas" instead of constructing a 150+ foot high tower to serve a mobile telephone service. A structure of about 22'x26' to house equipment is also needed. Ccuncil concurreo to make this an agenda item for the June 25th Council meeting. Adjournment The meeting adjourned at 10:00 p.m. (lJdU'Ucb t/)Fk~ , Charlotte McNiesh Clerk Administrator ~~dh7~~ ober L. Woodburn Mayor Notice of Meeting: The next Regular Council meeting will be on Monday, June 25th at 7:30 p.m. at the Village Hall