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Home My WebLink AboutRe: sanitary sewer � � /Z V � � ✓ t�'O� V�l.� � 1 V{� % � o � �� ;/ � 0 : ' CITY of ORONO �� ,�, j� �� !� � - Municipal Offices ; '�i ` L`-_�� i �;�� G'�' Street Address: Mailing Address: \�`gkEggOg'� 2750 Kelley Parkway P.O. Box 66 � -- Orono, MN 55356 Crystal Bay, MN 55323-0066 June 26, 1998 Douglas & Martha Head 1616 West 22nd Street Minneapolis, NIN 55405 Dear Mr. & Mrs. Head; I have enclosed a copy of a feasibility study completed by Bonestroo Engineers regarding sanitary sewer service for your property on Lake Minnetonka. The most cost-effective option is to directional bore a sewer line underneath the Arcola Channel over to Minnetonka Beach. This option is acceptable to the City of Minnetonka Beach. This project would require a grinder pump station, which would be installed as part of the project. The property owner would be responsible for the operation of this pump station, and would also be responsible for the sewer service line across the property to the Lake. The City would own and be responsible for the sewer line under the channel and across the Railroad and Hennepin County properties. The estimated cost for this project is $54,000. This will be a fully assessed project. The assessment period would be for fifteen years. Based on recent projects the estimated interest rate would approximately 6.5%. Please review this information at your earliest possible convenience. We are available to meet with you to discuss this issue. Thank you for your assistance in this matter. Sincerely; � � .� � C�� Gregory A. Gappa Director of Public Services Copy: Tom Kellog, BRA Engineers & Mike Gaffron, City of Orono Telephon� (612) 473-7357 • FAX 473-0510 . � .. ' � Bonestroo,Rosene,Anderlik and AssocJates,Inc.Is an Affi�mative Action/Equal Opportunity Employer Bonestroo Principals:Ot[o G.Bonestroo,P.E.•Joseph C.Anderlik,P.E.•Marvin L.Sorvala.P.E.• � Richard E.Tumer,P.E.•Glenn R.Cook,P.E.•Robert G.Schunicht,P.E.• Jerry A.Bourdon,P.E.• . Rosene Robert W.Rosene,P.E.and Susan M.EDerlin,C.P.A.,Senior Consultan[s �'� Associate P�incipa/s:Howard A.Sanford,P.E.•Keith A.Gordon,P.E.•Robert R.Plefferie,P.E.• Anderliic & Richard W.FoSter,P.E.•David O.Loskota,P.E.•Robert C.Russek,A.I.A.•Mark A.Hanson,P.E.• Michael T.Rautmann,P.E.•Ted K.Field,P.E.•Kenneth P.Anderson,P.E.•Mark R.Rolfs.P.E.• � Associ�tes Sidney P.Williamson,P.E.,L.S.•Robert F.Kotsmith•Agnes M.Ring•Michael P.Rau,P.E.• A�lan Rick Schmidt,P.E. Engineers &Architects o��;�es:5�.Pa��,Rochester,Wil�mar and St.Cloud,MN•Milwaukee,WI June 22, 1998 wensite:www.eonestroo.com Mr. Greg Gappa Director of Public Services City of Orono PO Box 66 Crystal Bay MN 55323-0066 Re: Head Property Sanitary Sewer File No.139-GEN Dear Greg: As directed by City staff, we have reviewed the existing conditions and the possible sanitary sewer service to the Head property in Orono. The property is located on Crystal Bay, north of Minnetonka Beach and west of C.R. 15 (Shoreline Drive) neaz the Arcola bridge as shown on Figure 1. Most of the property is relatively flat, elevated just one to two feet above the NWL(929.6) of the lake. The existing residence is located near the high point of the property at an elevation approximately eleven feet above the lake's NWL. An on-site septic system provides sewer service to the property. The system is currently nonconforming and no alternate septic sites exist on the property. :t :s propos�d that sPwer improvements to the Head property include the installation of a residential gr�ne�r�tation and forcemain as shown on Figure 2. As part of the project,a 4-inch HDPE pipe would be directionally bored southerly under the lake to an existing gravity manhole at the intersection of Shoreline Drive and Beach Lane in Minnetonka Beach. The 4-inch pipe would serve as a conduit for a 2-inch forcemain that would cazry flows from the Head property to the existing manhole. The conduit would provide a mazgin of safety against forcemain leaks and allow for future forcemain maintenance without re-boring the line. Beach Lane will be excavated around the existing manhole to make the forcemain connection. The street would be restored to its original grade and section. Disturbed lawns would be regraded and restored with sod. The �roje�t will require the approval of the Minnesota Department of Natural Resources (NIN DNR). Pernuts wili be required from Hennepin County,Minnesota Pollution Control Agency and the MN DNR. Tt�;.;;;__:.:.*�a cost f�r the proposed improvements is$54,000. The installation of the grinder station and �:�r.i��r:�o.: of the s�wer to the home will be the responsibility of the property owner. A detailed cost estiri�t��fc��rr,e proposed improvements is attached for your review. � Please contact me at 604-4863 if you have any questions. Sincerely, BONESTROO,ROSENE,ANDERLIK&ASSOCIATES,INC. _�- �� i om Ke:logg 2335 West Highway 3G ■ St. t'aul, MN 55113 ■ G�2-G3G-4G00 ■ Fax: G12-G3G-13]9 * i . ' , v / � i �- --�--- �� '-- ' - ----- ' - -- � - -- - �— �= ; /,�—. _�� i �— ! � �`-� � (- � �'' ,� j i �� I � - ; ,, :_ � � ` ' �`�� i i i��. ' � �, i �_�; � �- - — ----- — � i � i i i i � � � s�, - - -� - - - - - - - - - - - - - - - - - - - - - - - � - - - -�-- - - -�,�- - - - - - - , � I s I �' I / 1 � �9�- I ��s�'.� � � � I ��q � � � j � % � I I � " I � � PROJEC�T LOCATION : I � �� I j ,� ` --------- -----------�--- - ------}-------------- � ; �'� - I - '` i � � �� ; . __.!�_ 1 I� i � ,� ; I i � o . I �9� i ' . I I 9�F � T�� I _—� �-��. ;,, - - - - - - - = - - � t N - � � ! ` i LOCATION PLAN S�a�� ,� <<�� Roseneroo ORONO, MINNESOTA FIGURE 1 � Anderlik & � Associates HEAD PROPERN SANITARY SEWER IMPROVEMENTS Englneers & Architects \13999\13999R01.DWG 1/2/98 COMM. 139102 � o�' HEAD PROPERTY � Q � �� Q-k'� __ /� c,�'� O �� . � . �S �� 9 J- S,�� tis � RESIDENTIAL GRINDER STATION � 2" FORCE MAIN 9� � EXISTING SANITARY MANHOLE ` - — - EXISTING SANITARY SEWER �. ., � /�� `: . � / i O� e q `, ` � �C, ��. ' • L� � � �\ — — \ _ O / � � `� � %•--�� / .� • �P' �'� �/ � �(`��P� � / G� � � � . � ,�h 9�� • �Q• 9�-F �� , \ GO �, , `. ; �p ; , . ` '; _ . ° '°° Z°° � Bonestroo s�aie c� r�ec 0 Rosene ORONO, MINNESOTA Anderlik & FI G U R E 2 � Associates HEAD PROPERTY SANITARY SEWER IMPROVEMENTS Engineers & Archltects \13999\13999R01.DWG 1/2/98 COMM. 139102 � � � , HEAD PROPERTY SANITARY SEWER PRELIM/NARY COST ESTIMATE ,. .. . . _ ; . UNIT EST. EST.; . ` ITEM UNIT - PRICE QUANTITY COST: Directional bore 4" HDPE LS 25,000.00 1 $25,000 2"HDPE forcemain LF 4.00 1,100 4,400 Residential grinder station EA 5,000.00 1 5,000 Connect to existing manhole � . EA 2,000.00 1 2,000 Bituminous street patching SY 10.00 300 3,000 Sod with 4°topsoil SY 2 50 500 1,250 Estimated Construct�on Cost $40,650 +5%Contingencies 2,033 $42,683 +20%Legal, Engineering and Administration 8,537 $51,219 +5%Capitalized Interest and Bonding 2,561 Total Estimated Cosf $53,780 . . �O � O S �JGl'�� ..� U� � � _ � p � 1V' - O :. o � � ��J CITY of ORONO , �;r�� •1, "�, �.,��, �l�r Munici Of�ces '� V o�':;'�,i. Pal �if �Y �4� ;�� , �`�ti��'',�G Street Address: MaiUn�Address: '�EggO�' 2150 Kelley Parkway P.O. Box 66 Orono, MN 55356 Crystal Bay, MN 55323-0066 September 17, 1998 Douglas & Martha Head 1616 22nd Street W. Minneapolis MN 55405 Dear Mr. & Mrs. Head; The Orono City Council has scheduled a public hearing at 7:00 p.m. Monday September 28th at the Orono City Council Chambers to receive public comments on the assessment project to provide sanitary sewer service to your property at 2090 Shoreline Drive. This property would be served by directional boring a sewer forcemain under the Arcola Channel to Minnetonka Beach. You would own and operate the residential grinder station. The estimated cost for this project is $54,000 and would be a fully assessed project. The annual cost for a 15- year assessment period at 6.5% will be approximately $5,300. The property consists of about four acres of land with approximately one acre of dry buildable land. The remainder of the property is below the Lake Minnetonka 100 year flood elevation. There are two existing houses on the property that are both currendy occupied during the summer months. Both houses are served by a well and septic system. The septic system is nonconforining to the 3-foot separation rule. The property does not contain any suitable septic system sites and would require a holding tank if not served by municipal sewer. There is also a small cabin in the northeast corner of the properry that does currently does not have sewer or water available. The two houses and the cabin are nonconforming to the current zoning regulations. One of the houses and the cabin are located within the flood zone. Current regulations require a minimum of two acres dry buildable land that is above the 931.5 flood elevation, and exclusive of wetlands, for a principal residence. Additional acreage is required for a guest house. The current regulations also do not allow for any structures or hardcover within 75 feet of the Lake Minnetonka shoreline. According to the current zoning code, additions to the existing Tdep6one (612) 473-7357 • FAX 473-0510 nonconforming structures, or removal and replacement of the existing structures would not be allowed. Because the existing lot and structures predate the cunent zoning code, consideration to a limited amount of construction could be given through the variance process in the zoning regulations. The City's position is that if any of the structures are removed they cannot be replaced. In the event that all three structures are removed, one new house similar in size to the lazger house on the lot � could be constructed with the appropriate variances obtained. The City will allow connection of the two existing houses to the sewer system. In the event that both existing houses are removed, the connection of one new house to the sewer will be allowed subject to the appropriate zoning variances being obtained for the new house. Recognizing the zoning limitations, and that the existing lot is severely restricted for septic systems, and that the provision of sewer will eliminate the septic system restrictions; the City is requesting that the property owners sign a City Council Resolution stating that only the two existing houses or one new house will be connected to the sanitary sewer. This resolution will be recorded with Hennepin County and will be on the chain of title for the property to put future owners on notice of these conditions. Thank you for your assistance in this matter. Please contact me should you have any questions. Sincerely; �' � G��/' �''� ��1' Gregory A. 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