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16-103122FILE CITY OF Federal August 11, 2016 JK Monarch LLC PO Box 188 Puyallup, WA 98371 Email: filipp@jkmonarch.com Way RE: Permit #16-103122-00-SF; LAKE HAVEN ESTATES LOT 11 1640 SW 341" Place, Federal Way CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway. com Jim Ferrell, Mayor The City of Federal Way has received and has reviewed site plans for a single family home received on June 28, 2016, for the Lake Haven Estates Lot 11 at 1640 SW 341" Street. According to the Lake Haven Estates final plat general notes, two conditions are required to be met prior to the issuance of the building permit as outlined below: Prior to issuance of a building permit for a single family residence for Lot 11, the applicant must provide the City of Federal Way a landscape plan which clearly shows the location of all of the trees on the adjacent Nelson property (PIN 192104 9032). The applicant shall also submit a letter from a certified arborist stating whether tree protection measures on the Lake Haven Estates Lot 11 are necessary to keep the Nelson's trees safe. If the arborist's letter indicates that tree protection measures are in order, those tree protection measures shall be shown on a tree protection plan to be submitted to the City in conjunction with a building permit for a new single family residence for Lot 11. A significant tree retention and replacement plan shall be provided to the City of Federal Way at the time of each building permit submittal and issuance for a new single family residence on each lot. Each individual lot shall meet the significant tree retention and replacement standards of FWCC 22-1568(B), which requires retention and/or replacement of at least 25 percent of the significant trees on each individual lot. Replacement trees will be required to be planted prior to final approval of each new single family residence. Prior to the issuance of a building permit the conditions outlined above must be satisfied. If a complete tree inventory of the Nelson property is not possible, a property line examination of the trees and their prospective root systems situated upon the property line will satisfy this condition. If you have any questions contact Planning Intern David Lee at (253)835-2622, david.lee@citvoffederalway.cotil. Sincerely, David Lee Planning Intern enc: Lake Haven Estates 2007 arborist letter FWCC 22-1568 Significant Trees requirements c: Peter Lawrence, Plans Examiner Doc I D 74391 Vt4- en•k:c -Fw-- -ra- . V. WASHINGTON FORESTRY CONSULTANTS, INC.kLfll� �'' A, FORESTRY AND VEGETATION MANAGEMENT SPECIALISTS W F C 1 360/943-1723 RECEIVED 1919 Yelm Hwy SE, Suite C FAX 360/943-4128 Olympia, WA 98501 DEC 3 0 2014 Cm OF CDS FEDERAL WAyfree Evaluation - SW 341 st Street Federal Way, WA Prepared for: Barghausen Consulting Engineers, Inc. Prepared by: Washington Forestry Consultants, Inc. Date: December 24, 2007 Introduction I have reviewed the trees along both sides John Nelson's/Lakehaven Estates property line in Federal Way, WA. The purpose of the evaluation was to determine the impact to the trees on the Nelson property from tree removal and construction on the Lakehaven Estates site. Observations Soils According to the King County Soil Survey there is one soil type along the subject property line. The soil type is the Alderwood gravelly sandy loam, a moderately deep, moderately well drained soil found on glacial till plains. It is formed in ablation till overlying basal till. A weakly cemented hardpan is at a depth of 20 to 40 inches. Permeability is moderately rapid above the hardpan and very slow in the pan. Available water capacity is low. The effective rooting depth for trees is 20-40 inches. A perched seasonal high water table is at a depth of 18-36 inches from November to March. The potential for windfhrow of trees is moderate under normal conditions. New trees require irrigation for establishment. URBAN/RURAL FORESTRY m TREE APPRAISAL • HAZARD TREE ANALYSIS RIGHT-OF-WAYS a VEGETATION MANAGEMENT • ENVIRONMENTAL STUDIES • CONTRACT FORESTERS Member of International Society of Arboriculture and Society of American Foresters Tree Evaluation — Lakehaven Estates- Federal Way, WA Existing Trees The trees on the site are a stand of native and introduced species. The species that are located along the property lines include Douglas -fir (Pseudotsuga menziesii), western red cedar (Thuja plicata), red alder (Alnus rubra), bigleaf maple (Ater macrophyllum), giant sequoia (Sequoiadendron giganteum), apple (Malus sp.), Pacific madrone (Arbutus menziesii), black cottonwood (Populus trichocarpa), Port -Orford cedar (Chamaecyparis lawsoniana), bitter cherry (Prunus emarginata) and two oak species (Quercus sp.). The diameters of the trees range between 6 to 44 inches at breast height (4.5 ft. above the groundline). Tree condition can be described as fair to good, with a few poor or dead trees. There were no visible signs of significant disease or insect problems in the stand. A total of 24 trees were evaluated on 3 properties. Eleven trees occurred on the Nelson parcel near the property line. A Iist of the Nelson trees by species, DBH, the potential impacts and necessary root protection are provided in Table 1. A list of all evaluated trees is provided in Appendix III. The root protection zones were determined by examination of the trees, the root systems, and competition between the subject tree and surrounding trees for growing space under ground. Based on these tree evaluations, the necessary root protection zones (RPZ) were determined. Table 1. Summary of the Nelson tree parameters and necessary root protection zones. # Species DBH in. Potential Impacts from Construction Minimum Root Protection Zone —Radius ft Distance to Property Line (ft) Mitigation 1 Bigleaf Maple 18 Possible 10 2 TPF at 10'r from stem* * 3 Bamboo -- Low 2 1 TPF at 2'r from edge 4 Oak 12 None 10 11 TPF at P/L 6 Douglas -fir 20 None 15 24 TPF at P/L 7 Oak 8 None 7 9 TPF at P/L 12 Douglas -fir 44 Possible 20 4 TPF at 20 ft. north of tree 13 Douglas -fir 8 Low 7 4 TPF at 7'r from stem 14 Douglas -fir 8 Low 7 6 TPF at 7'r from stem 15 Che 7 Possible 6 0 TPF at 6'r from stem 17 Cherry 6,7 Possible 5 1 TPF at 5'r from stem 19 Cherry 16 Possible 12 3 TPF at 12'r from stem *P/L =Property Line; TPF=Tree Protection Fence; DBH=Diameter at Breast Height (4.5 ft.); **Suggest removal of tree #I; Tree 91, the bigleaf maple is under the powerlines and has been topped. It is in poor condition. It is recommended that this tree be removed and replaced by the Nelson's, with a utility friendly trees (<20 ft. mature height). Washington Forestry Consultants, Inc. 2 Olympia, WA Tree Evaluation — Lakehaven Estates- Federal Way, WA Discussion Six trees on the Nelson property may be impacted by cuts or fills during the Lakehaven project. I have provided the necessary root protection zone distances in Table 1. Installation of the tree protection fences at these locations will provide adequate protection of the Nelson trees. The approximate locations of the tree protection fences are shown on the site plan in Appendix II, but the map is not to scale. Conclusions To reduce the risk of tree damage along the Nelson property line, I recommend that the following practices be considered: 1. Install a tree protection fence at the root protection zone distances prescribed in Table 1. 2. Potential activity to avoid along this edge includes: a. Excavation within the root protection zones. b. Care must be used during stump removal on the Lakehaven parcel to avoid damage to adjacent trees. It may be necessary to grind stumps that are within 10 ft. of a neighboring tree. c. If walls or fences are to be constructed, then care must be taken in digging footings for these structures. d. Fills may be possible, but should not impact more than 20% of the prescribed root protection zone. e. No trenching for underground utilities or other root or soil disturbing activity should occur in the root protection zone. f. If undesirable vegetation needs to be removed, then it should be carefully hand cut or `plucked' with an excavator sitting outside of this projected root protection zone. 3. Consider having WFCI present during site clearing along this north line. In summary, if tree protection fences are installed as prescribed and care is used removing any adjacent Lakehaven trees as prescribed, then the potential impacts to the Nelson trees by the Lakehaven project is low. Please give me a call if you have further questions Respectfully submitted, Washington Forestry Consultants, Inc. Aa,-x� . "&41- - Galen M. Wright, ACF, ASCA ISA Board Certified Master Arborist No. PN-129 Certified Forester No. 44 Washington Forestry Consultants, Inc. Olympia, WA Tree Evaluation — Lakehaven Estates- Federal Way, WA APPENDIX I Lakehaven Estates Site Plan Impact Area Mdk; 28 S t IT:c k ---- rNW- I'M lie Nelson -12- els .111, ZVI Property 2 North No Scale Washington Forestry Consultants, Inc, Olympia, WA 1 41 In s Tree Evaluation — Lakehaven Estates- Federal Way, WA APPENDIX II Lakehaven Estates - Edge Trees t Lakehaven ' ' RPZ 5'r RPZ 12'r RPZ 20'r • •++�� 16 18 20 21 22v2 11 rka.r,i ■■ i.wvs.+c V Itr23 Mw Hwy 0 Mr` .13 Y ! 9 • Y 24 �°'°°° Y 12 14 m ❑ e Y 15—Borderline RPZ 7'r Tr ce— 6'r RP2 r I 4 Bamboo—RPZ Nelson y Gt� 3 1 rr�w�• 1 Maple - RPZ 10'r North m EASMW a.c a., 304312 1 No Scale w w ....... Tree Protection Fence Locations — Minimum RPZ's listed for each Nelson Tree (If any Lakehaven trees are to be saved, then adjust the tree protection fence locations) Note: • Trees called alder on map by the surveyors are cherries. Washington Forestry Consultants, Inc. Olympia, WA W, Tree Evaluation — Lakehaven Estates- Federal Way, WA APPENDIX III Edge Tree List with all Tree Data Nelson Property Line at Lakehaven Estates Tree Potential Potential Crown Save/ Impacts from # Species DBH in. Condition Position Remove Owned By Construction 1 Bigleaf Maple 18 Poor- Dominant Remove Nelson Possible To ed P/L 2� - Giant Sequoia 20 Fail:.. l�o�iiiit�sti. S8Ya I akehaven 3 Bamboo Fair Intermediate Save Nelson Low 4 Oak 12 Fair Codominant Save Nelson None 5 Batiibe3 ' Fail .: _ _; Ifa#eriiiediafe Rate I:Bk.'aven -- 6 Douglas -fir 20 Good Dominant Save Nelson None 7 Oak 8 Fair Intermediate Save Nelson None $ A.,: ' e ". p oditi�' v 72... :['ayj�,i :_ ' ir'.J�-.l9f�in�int . 'Save; . .�1 ;�:.: • .�-' •i.:W . lQ:. W h:IvadrOe 3Q, v8 �? fi _ Oi77]nant RemoMe- .a'•�'il�� Y Aive_ s •e " -:. -.; ; 12 1 Douglas -fir 44 Good Dominant Save Nelson Possible 13 Douglas -fir 8 Good Codominant Save Nelson Low 14 Douglas -fir 8 Good Codominant Save Nelson Low 15 Che 7 Fair Codominant Save Borderline Possible I :.Bair:=-. "+ F doi�ar7t� ' "Saves � �tli��• _=1c.�=..'1=,�'�,>�::,. 17 Cherry 6,7 Fair Codominant Save Nelson Possible IK -. all a Yra 19 Cherry 16 Fair Codominant Save Nelson Possible .7 •' N .i• dr �:r� �T+A INV,4W11•.'ai �:R •'• •�/� 4V"'Q f1.: '. .ii..'� �.2'_ - Y !dr �;. - ar rye.. , r.a.• i.ar� -lh.iiA .-' J.a k1S_1�i'%'.• y }�kr,�-_ 4 t ,! �'�'•.'�'•�Ski`�r'..:, �� '. -'�1�. 18i.� _.�.��.��5;' 41 �ifl : '=.X i+1 ', '.'' G'�` rc ` Y♦' ! 2-?Ns�.iS .. T°fF 's .•= t, F; • l �l� .' .J;Y�:+' ji;°^� � .`l.i.i;1 1t :,1.•T' �5 ` ?4 � t•r �� '�' �' 7 t:. �:��.��gt[ ai �.7�{7ryy jy��[ �'t. n'• iS K++i' r st+ya �11�: M!:7�.t V P' d� i :-17.Yh *Black cottonwood is a high risk tree near targets', Nelson trees are unshaded; Note: Even healthy trees can fail under normal or storm conditions. The only way to eliminate all risk is to remove all trees within reach of all targets. Annual monitoring by an ISA Certified Arborist or Certified Forester will reduce the potential of tree failures. It is impossible to predict with certainty that a tree will stand or fail, or the timing of the failure. It is considered an 'Act of God' when a tree fails, unless it is directly felled or pushed over by man's actions.