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HomeMy WebLinkAboutwetland buffer info opY �RO �4 C Memorandum �Bonestroo __ _ __ __ _ 2335 Highway 36 W To: Melanie (urtis Projecr. 2550 Fox Street Date: 6/9/201I Sc. Paui,nH Ss�i] From: f ohn Smyth (lient: City or Orono Tel bil-6J6-4600 faz 651-636�Iill Ne: Wetland Buffer Ordinance Comphance file No: 139-I1000 wwwbonestroo.com Remarks: Gronberg and Assoicates, Inc has demonstrated that the water from the new proposed structure will drain to the southeast. This will require an upland buffer of 25 feet adjacent to the portion of the wetland that receives the drainage. A ezisting driveway crosses the buifer so a portion of the buf(er will exist on both sides of the driveway. Gronberg and Assoicates, Inc. has provided a drawing that accurately depicts the extent of the required buffer. Buffer Yegetation Requirements Most of the buffer is in a natural state and the ordinance only requires that it is preserved (see attached exhibit�. Only a small portion of the buffer contains turf. The portion of the buffer that is turf will need to have the turf removed and be restored to native vegetation. A written description of the proposed native seed mix to be seeded and method of site preparation and seeding should be provided to the firy for review and approval. According to the ordinance Div. 3 Sec. 18-1605 �3) the seed mix must contain at least 12 pounds (PLS) per acre oi native prairie grass seed and 5 pounds (PLS) per acre o( native wildFlower seed. The grass mixture must contain a minimum of four species while the wildflower mixture must contain a minimum of (ive species. Once the native vegetation is established the bufier area will not 6e allowed ro be mowed unless it is for maintenance after October I5. Recommendations It is recommended that if the application is approved it includes the condition that the applicant needs to meet the bu(fer vegetation requirement as discussed ia this memo. An escrow amount for $i,900 is recommended to cover the cost of buffer development if not completed by the applicant and compliance checks. �I � � �i ' CERTIFICATE OF SURVEY FOR SM�'Ti-� ( ; - JAY & CHRISTINE MALMQUIST ��o '� � •, OF L07 2, BLOCK 1, BEAU MARA15 ����� � HENNEPIN COUNTY, I��1INNESOTA - � :,., . ,,;. ., , , 3 w� _ ; ; ,,::j � Y .. _ _ � _ ___ ., , , � __ __. �. � , �N�v` �� � �. �`y`�"' • � i I � . .,�� � �,.� �''' b a'. � i •= ; :� � �: I � � •.: �. • ' . � 1 � _ ••= �,�•1{ , i i • � . :�� , �� �,, ,� �:: ; � � ' , • �.'•� �,' � i i I .. .. � , • .\ . . - �� '9�� I � -. .. ..... . ���''..., .. ... .. C "'�! '�� -� �L �TJ a} . ._> ` ':,. � ' �. i I � ^�c� . • ��� s o et '.8 i � __ •� . � # �- ''a :-,`" � �:.-��y,- .>� �„• �*^ t i f` �l �� ;� �' �." . ..:_._ •� r. 5. 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( _ . .. �i _ � _ �iv���] ' ,,f.�.. .._ " __". _ ..... .. _ .. -i .-'r��__ ._ _ __ .__ __'_ � �;o;_:� .����F. : : ,.,r:.'d>� :53L8 �M. �,� `f /� '__ .� __..___ . _ rf_ <r �< i � �,.,�-.��x.� �, . _ _ _ �__ ' :.4.:_�.�1. •__ .,...��..a::>.l..t._rr �..1� i 'Ca � � = � BOL—TON 8� M � N K , I NC� . Consulting Engineers & Surveyors �� � 2638 Shadow Lane, Suite 200 • Chaska, MN 55318-1172 ` ���`�;��� Phone(952)448-8838 • Fax(952)448-8805 � www.bolton-menk.com "�''���,.. July 31, 2013 ��`C+ q� F��FO City of Orono L,/ G'/JS Attn: Melanie Curtis TYO� �jj�� PO Box 66 � Crystal Bay, Mn 55323 RoNo RE: Wetland Buffer Area Seed Mix; Permit#201 1-00222 2550 Fox Street Dear Melanie, As requested, we have examined the proposed seeding mixes for the wetland buffer at 2550 Fox Street. We offer the following observations, comments and recommendations for your consideration. 1. The proposed seed mixes are mainly for sandy and gravelly soils (as indicated on the recommendation). According to Hennepin County Soil Survey this area consists primarily of clayey soils, not sandy. 2. It is our recommendation that The City request clarification as to the reasoning for proposing these seed mixes and should continue to hold the permit escrow until the buffer area is p(anted and can be verified as established. Please contact me if you have any questions or need additional information. Sincerely, BOLTON & MENK, INC. � ; - _� — �- _ _ ,,.�� _ . �� . ` J Mark L. Perry, WDC � Natural Resources Specialist Cc: David Martini, Bolton & Menk Robert Bean, Bolton & Menk � � ;;����, :� .. Christine Mattson From: Melanie Curtis Sent: Wednesday, July 24, 2013 11:18 AM To: Mark Perry Cc: Christine Mattson; David P. Martini Subject: FW: Malmquist 2550 Fox Street Wetland Buffer Seed Mix Attachments: Malmquist 2550 Fox Street Wetland Buffer Seed Mix.pdf Relating to permit # 2011-00222 for 2550 Fox Street: Mark please review the submitted seed/planting list and let me know if you feel it is appropriate and I will direct the owner&PRI to proceed. We are apparently holding $1900 in escrow to secure this planting is established. This buffer was triggered when an addition was constructed on the existing home. Please let me know if you need additional background on this. Thank you. Melanie Curtis � 952.249.4627 �� mcurtis@ci.orono.mn.us From: ]ay Malmquist [mailto:jrmalmquist@hotmail.com] Sent: Wednesday, July 24, 2013 10:45 AM To: Melanie Curtis Subject: Malmquist 2550 Fox Street Wetland Buffer Seed Mix Melanie, Please find attached the recommended wetland seed mix for the buffer at the Malmquist residence - 2550 Fox Street. Since this is a dry area that was formerly lawn, a dry mix was recommended as the best for growth. Thanks, Jay Malmquist 1 �� �°� Prairie Restoration Malmquist Residence � 2550 Fox Street � Orono,MN 55391 � 952-249-6269 Short/Dry Grass Mix 50%Little bluestem,34%Side oats grama,8%Blue grama by PLS weights,2.5%June grass,2% Poverty oat grass,2%Prairie dropseed,1.25%Kalm's brome,.25%Sand dropseed,by bulk weight. Soil Type:Ideal in sandy or gravelly soils,along walkways and around buildings where shorter vegetations is desirable Soil Moisture:Dry Average Height:1-3 ft. Sun Exposure:Full to partial sun Short/Dry Wildflower Mix 18%Purple prairie clover,17.5%Black-eyed Susan,17.5%Hoary vervain,30%Leadplant,10% White prairie clover,4%Stiff tickseed,4%Bush clover,3%Gray goldenrod,3%Golden Alexander,2%Azure aster,2%Wild bergamot,2%Stiff goldenrod,1%Fragrant giant hyssop,1% Common milkweed,1%Rough blazing star,1%Prairie rose,1%Showy goldenrod,1%Western spiderwort,0.5%Yarrow,0.5%Prairie cinquefoil,all by bulk wt. Soil Type:Ideal in sandy or gravelly soils,along walkways and around buildings where shorter vegetations is desirable Soil Moisture:Dry Averege Height:1-3 ft. Sun Exposure:Full to partial sun � C