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Correspondence A4s r95 - 4 /2-7 ? 7 /s' s t-✓ 1e (QU MEMORANDUM CITY OF TIGARD, OREGON TO: David Scott, Building Official FROM: Michael Anderson, Engineering Department SUBJECT: Sidewalk Inspections Letha Thomas, Inspector, has informed me that the sidewalk and approach at the address of the attached file, was not inspected prior to pour. Inasmuch as the future maintenance of the sidewalk and approach is the responsibility of the adjoining property owner, it is our recommendation that the Building Department notify the property owner that no inspection for this item was done and that any problems within one year of the Certificate of Occupany should be referred back to their builder. The construction appears satisfactory by observation and no further work is recommended at this time. CH H OMJ S, INC. HOME BUILDING - DEVELOPMENT /747 c6q2.7 97 /g'5tA/ Lai-taco/ f t October 2, 1995 TO: Lee Walker, Unified Sewer Agency FROM: Michael Church RE: Wetlands, Lot 8 Landau Woods I spoke with you many months ago regarding Lot 8 Landau Woods. I asked you if it would be possible to get a variance for the wetlands buffer boundary if I did certain things to enhance the land within the boundary. You told me to put the proposal in writing and submit it to you. I am building the house for my personal residence. I am requesting a variance from a 25' buffer to a 15' buffer to accommodate the house. SRI /Shapiro did a Wetland Determination, Delineation and Compensatory Mitigation for this lot on May 2, 1995. I also received a fill permit from the US Army Corps of Engineers for a small depression as noted. The slope of the property is from south to north and does not flatten out until the land reaches the creek. With the new delineation, it was determined that there is no wetland properties in the buffer area. It is currently grass, weeds and berry bushes. It is my intent to clean out the berry bushes and replant near the creek with wetland plantings such as Typha latifulia, Nymphaen odorata, Scirfus Acutus, Salix sitcheusis and Spiraea douglasil. Frankly, I am not entirely sure exactly what the plants are, but the work will be done by Overnight Landscape Service, Inc. Dean Oshiro is the owner of the company and will be laying out the plantings. I have attached all correspondence with this letter. Please all me if you have any questions. I am ready to submit for building permits with the City of Tigard. I have given them a copy of this letter and attachments. Thank you, Mike Church 7440 S.W. 35th Ave. • Portland, OR 97219 • 293 -2109 wet land boundery for Ash Creek ' + • 7 / X4.9 I �l -,-- , -r-7 rr l 7 � I / / l / l / r / / / / l /• / I i / / / 1/ I / / / / l / I / / / Y / / / / / I north y / / / / I I / / / / / / / / / 15' wet lands buffer -� > r � / r / ! / ` r 1 ! scale: l" =20' / ! / r l / l I l / l 11 / _ I / I rI \I � / rI 25' wet lands buffer > / \\ / I / , \; s1w r stub Lot "8 _' / / / / I - I I Landau Woods \ I / / / ;�; City of Tigard \L\ / / l / /I / r l I Washington County / / Oregon 6 / / / cci N I / I N r N N I N i I \ I ' — 0" c , _ 15' -0" > • ) . < san. sewer easement , , "` / �.-- - - - - = -_ 7 5' -0� 6502' , . / . 7 4( 7/ . \-; , , Z Or G a \ Z . \I -.I x -7 mike church con5tr. ' . - ®n . . „, ,, DSL E i, ki• 5 2. May 24, 1995 DIVISION. OF STATE LANDS Dan Cary SRI / S HAP I RO STATE LAND BOARD 1650 N.W. Front Avenue, Ste. 302 JOHN A. KITZHABER Portland, OR 97209 Governor PHIL KEISLING Secretary of State Re: Landau Woods Wetland Delineation JIM HILL Tigard (T1S R1W S25) State Treasurer 775 Summer Street NE Salem, OR 97310 -1337 Dear Dan: (503) 378 -3805 FAX (503) 378 -4844 I have reviewed the wetland delineation report for the TTY(503)378 -4615 above site and concur with your conclusions. The isolated wetland at the back of the lot and the wetland /creek area mapped in Figure 4 of your report are subject to permit requirements of the state removal -fill law. Because any fill in the small, isolated wetland would be much less than 50 cubic yards, no state permit would be required. I understand that Bill Parks has already sent a letter to that effect. Thank you for your report. Sincerely, cAow-A ''W-' Janet C. Morlan Wetlands Program JCM /j ap j an: 1135 c: City of Tigard Planning Department Bill Parks, DSL • ' -. AGENCIES WILL SIGN NUMBERS'', A„ • 1 8 5 9 Corps Action ID Number Oregon Division of State Lands Number SEND A SIGNED COPY OF YOUR APPLICATION TO BOTH AGENCIES District Engineer ATTN: CENPP -PE -RP State of Oregon P 0 Box 2946 Division of State Lands Port • - i., • 97208 -2946 775 Summer Street NE Salem OR 97310 X -77 503 / 3 78 -3805 Michael 1 Appli •nt Name Church Homes, s Inc. business phone and Ad. ress Churc 7440 SW 35th e #(503) 260 7275 Portland, Avenue OR 97219 home phone # (mobile) (503) 293 -2109 _<.:,.... FAX# r(a ..„ 5 ... e ___,, . e_,,,,,,,,_, , ._, 4 4 e r-0 C4.4.---.....______ , _J }.. O F O r JOINT ' ,;Z;'.,,,',` ®, I : `Iinv�• p Z [ma , �c.4. , o . PERMIT APPLICATION FOR � - J % • : ' - z U S Army Corps of Engineers THS APPUCATION WILL MEET THE REQUIREMENTS OF BOOFtAGENCIES g 1 i - 3 - 5 9 Portland District Qr I F j r'.:- ; r ,,'LL. t P . r, 1q AGENCIES WIIL'ASSIGN uMBERE u,' r V-4'-'''7'. . Corps Action ID Number () O regon Division of State Lands Number ` SEND A SIGNED COPY OF YOUR APPLICATION TO BOTH AGENCIES _€ District Engineer State of Oregon ATTN: CENPP -PE -RP Division of State Lands P 0 Box 2946 775 Summer Street NE Portland. OR 97208 -2946 Salem OR 97310 f, 503/326- 7730 503/378 -3805 i Michael Church Homes, Inc. business phone # ( 503) 260 -7275 0 Applicant Name Mike Churc (mobile) and Address 7440 SW 35th Avenue h ome p # ( 50 293 -210 Portland, OR 97219 FAX# ( 503) 293 -2253 O Co-Applicant SRI/SHAPIRO, Inc : r (Dan Cary) business phone # ( 503) 274 -9000 O Authorized Agent 1 650 NW Front Avenue, Suite 302 home phone # O Contactor - Portland Oregon 97209 Name and Address FAX # (5 0 3) . 274-0123 Property Owner business phone # (rf different than applicant) home phone # Name and Address FAX # 0 PROJECT LOCATION Street, Road or other descriptive location Legal Description Lots 7 , 8 , Landau Woods , SW Landau Quarter Section Township Range Place -25 1S 1W In or Near (City or Town) County Tax Map # Tax Lot # Tigard Washington Waterway River Mile Latitude Longitude Tributary of Ash Creek -45 .2 o o /Z z 4. 20 Is consent to enter property granted to the Corps and the Division of State Lands? Or Yes 0 No Q PROPOSED PROJECT INFORMATION Activity Type: Fill 0 Excavation (removal) 0 In -Water Structure 0 Maintain /Repair an Existing Structure Brief Description: Construction of single family residence Fill will Involve cubic yards annually and /or 1 1 • 5 cubic yards for the total project • . cubic yards below the ordinary high water or high tide line Fill will be 0 Riprap 0 Rock 0 Gravel 0 Sand 0 Sift 0 Clay 0 Organics elOther Fill Impact Area Is - 0.005 Acres: length: width: 18" depth Removal will Involve cubic yards annually and /or cubic yards for the total project cubic yards below the ordinary high water or high tide line Removal will be 0 Riprap 0 Rock 0 Gravel 0 Sand 0 Silt 0 Clay 0 Organics 0 Other . Removal Impact Area Is Acres: length: width: depth Estimated Start Date May 31 , 1995 Estimated Completion Date April 31 , 1996 Will any material. construction debris, runoff. etc. enter a wetland or waterway? 0 Yes (No If yes. describe the type of discharge and show the discharge location on the site plan. ENCLOSURE 1 • ®. PROPOSED PROJECT PURPOSE & DESCRIPTiON Project Purpose and Need: To construct a single - family residence on Lot #8 in the Landau Woods subdivision. Project Description: . Construction of a proposed single - family residence on Lot #8 will impact a small isolated wetland depression 0.0.05 acres. and the wetland buffer of a small tributary of Ash Creek that continues off of the site to the north How many project drawing sheets are Included with this application? 4 NOTE: A complete application must include drawings and a location map submitted on separate 8'/ 11 sheets. © PROJECT IMPACTS AND ALTERNATIVES Describe alternative sites and project designs that were considered to avoid impacts to the waterway or wetland. No buildable design is possible that would place the home outside of the wetland buffers. If the wetland fill is allowed, the proposed plot plan places the house into 0.003 acres of wetland buffer along the tributary of Ash Creek. Describe what measures you will use (before and after construction) to minimize Impacts to the waterway or wetland. During construction, erosion control measures such as silt fencing and hay bales will be used to decrease the possibility of siltation within the wetland areas and stream channel. NOTE: If necessary; use additional sheets. © MISCELLANEOUS INFORMATION Adjoining Property Owners and Their Addresses and Phone Numbers list all other approvals or certificates received, applied for, or denied that are related to this application. _Issuing_Agency Type of Approval identification Number Dates of application / Approval / Denial 0 (I COUNTY PLANNING DEPARTMENT AFFIDAVIT (to be completed by local planning officia() 0 This project is not regulated by the local comprehensive plan and zoning ordinance. 0 This project has been reviewed and Is consistent with the local comprehensive plan and zoning ordinance. 0 This project has been reviewed and is not consistent with the local comprehensive plan and zoning ordinance. • 0 Consistency of this project with the local planning ordinance cannot be determined until the following local approvai(s) are obtained: 0 Conditional Use Approval 0 Development Permit 0 Plan Amendment 0 Zone Change 0 other - An application 0 has 0 has not been made for local approvals checked above. • • Signature (of local planning official) iitie City / County Date • 0 • COASTAL ZONE CERTIFICATION tf the proposed activity desctt ed h your permit oppicatlon Is within the Oregon coastal zone, the following certification is required before your application can be processed."ApuLo6c notice wig be issued wtth the certification statement which will be forwarded to the Oregon Department of Land Conservation and Development for its concurrence or objection. For additional Information on the Oregon Coastal Zone Management Program, contact the deportment at 1175 Court Street NE. Salem. Oregon 97310 or cad 503/373 Codification Statement • I certify that, to the best of my knowledge and belief. the proposed octfvtty described In this application complies with the approved Oregon Coastal Zone Manogemen t Program and will be completed In a manner consistent with the program. r Print/Type Name Title Applicant Signature Date 09 SIGNATURE FOR JOINT APPUCATiON (REQUIRED) Application is hereby made for the octivtties described herein. I certify that I am familiar with the Information contained in the application, and. to the best of my knowledge and belief, this information is true, complete, and accurate. I further certify that I possess the authority Including the necessary requisite property Interests to undertake the proposed octivtties. I understand that the granting of other permits by local, county, state or federal agencies does not release me from the requirement of obtaining the permits requested before commencing the project. I understand that local permits may be required before the state removal -fill permit is Issued. I understand that payment of the required stale processing fee does not guarantee permit issuance. Mike Church Prht/Type Nome / Titre ef. X /I ) ' • 5= 1 —Itr5 .. t .!. • .. . rwhxe Date . - I certify that I may act as the duly authorized agent of the applicant. — Dan Cary Project Man - ager Print/Type Nome litre 0 % ( i:LA,) S ( — ( Auttlortzed Agent Signature 6 I Dote SUPPLEMENTAL WETLAND IMPACT INFORMATION (Foa Wavwo Fans ONLY) Site Conditions of impact area Impact area is 0 Ocean 0 Estuary 0 River 0 Lake 0 Stream V Freshwater Wetland Involving intertidal a tidal marsh alterations. ; i Note: Estuarlan Resource Replacement �e�uir�b i� be appended to the application. - A separate Wetlands Resource Compe . Has a wetland delineation been completed for this site ? e(Yes 0 No • I If yes. by whom: , Describe the existing Physical and biological character of the wetland /waterway site by area and type of • resource (use separate sheets and photos, if necessary) See attached report . Resource Replacement Mitigation Describe measures to be taken to replace unavoidably Impacted wetland resources See attached report • • Because this Information Is not necessary for a complete application. you may submit this sheet and other environ- mental Information after submitting your application. • �• - - - . -,; _ d Li. ____. �.. ( • 'A1. 1 ' L V • • '• VT 1itt `�,!' r fir • L:' _ � : - — - ic •,� •_ - 41111 , � � � -- .,. . ' I - � • �! ' til l: •I / . ,I� - j r, r 9 1 1 • i:w -' _ - i s - IAI. _ 4C •r' : � ove) i ( " ` ''' -` _ -.••'\ .dl`. 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" ) / / e ,, .„„,,, , /'., : • • ___-.1 I., • , -..,, . ,..! .,di, i • t • ,,,),..i - .____:—.. - or A--; J I -11 /x- / _ • r'BEin - - :•I . 1' I • I 1 " :�� / i I ./r! f(I �/ _Ig 7• • : • • • • — _ :b: ' ?I l!ii •1- ` % '_ - ' ; i �' ir ' , • •• I Y r,',- / � •A� " • 2 0 0 I � 1 • . _ / - - ' ' L1:_,,,,3 •j � � :,, ,i, I I } 1 1 =1' 1:-- Is I f ��� ?: \ 54 : �;i. ®• ( { " l'''' 1 � ' • - - 2p0 ( , i , iH I• :, • ' ' da l :. � V\ ` 1, ,. ;` � \ -', • 11.: � .:1' , �� ':.; ,. is ,, .. .1E2, :.��_�\ ; , --- , • - / I ', I? I'Al \ . ••• . N....„' 1 ',CU 4.'" - i ... • t n .c °4 � � - � I ' h` ' ` �' � � 4o ♦ ® , . • " • • A _i I ' . 1 :'1II� G a il - � I T�� Lip `� . • � • '',. -_� /-t "„` 2" �L 3?, / - - - _ ....41 "2-'1.* ..,' • 41 ,.. -, \ ,fr (-:.: ,,,.1 , . • / .4.1•(% • • ml I k ... I : -0 4. ...„...1 - 7945231 5/2/95 Location and generalized topography for the development site on S.W. FIGURE Land in Tigard,, Oregon (U S-GTS. Beaverton, Oregon, 775 - minute quadrangle, 1:24000, _provisional editions 1961 and 1984). ' SRI / SHAPIRO I N C O R P O R A T E D P GA P Q P �� • O • • .� , Stream not Wet/ -?--" • surveyed ez b o arp • \ ld b — - _ ..^ 3 . �t.. ® 2 ! • • 4 . 1 \.;�8 . . LOT6 LOT 7 " i Z P ____4_. _ _ _ _ X ---\-------- / y v LOT 6 — r LOT 9 F to _____ = O D M o i ° W D O m 7 .----- LANDAU WOODS , J Tigard, Oregon 1 1Ii lp'1•'"11 111I. - . III P' ® Sample site • NORTH Wetland 0 40 80 FEET `., . ..... Map from Mike Church Homes, 1994 7945231 5/2/95 - Wetland- areas - and - sample - sites- for - Lots - #-7- and- #8- on -S.W. __._Landau FI GURE Place in Tigard, Oregon. 4 • SRI / SHAPIRO I N C O R P O R A T E D • . ....... ," . . . . . ,,, ........ • - . \ . . . A A' • HOUSE � ED _ LOT 7 0 H Q -1 w D O CO LOT 8 LANDAU WOODS Tigard, Oregon i itIIIII 111111 � ��� vimm NORTH II IIIIII► Wetland p 20 40 Wetland fill .. FEET Y . _. , Map from Mike Church Homes, 1994 7945231 5/2/95 Wetland -area 25 -foot wetland - buffer-, -and- house- location_on_Lot_ # -8_on FIGURE S.W. Landau Place in Tigard, Oregon. 5 SRI /SHAPIRO I N C O R P O R A T E D • A WETLAND A' 195 -- FILL) w 1 0 20 40 DISTANCE IN FEET 7945231 5/2/95 Section through the wetland to be filled on Lot #8 on S.W. Landau Place FIGURE • in Tigard, Oregon. 6 SRI / SHAPIRO I N C O R P O R A T E D iETyTQF :.,V1yq* DEPARTMENT OF THE ARMY ,ae',e' , >k, PORTLAND DISTRICT, CORPS OF ENGINEERS '' i - H P. 0. BOX 2946 1 1 1 :. PORTLAND, OREGON 97208 -2946 ; a Repay to May 11, 1995 Attention of Operations Division SUBJECT: Permit Application No: 95 -440 Michael Church Homes, Inc. Attn: Mike Church 7440 SW. 35th Avenue Portland, Oregon 97219 Dear Mr. Church: We have received your application (Enclosure 1) for a Department of the Army Permit to place up to 12 cubic yards of material in 0.005 acres of wetlands for a single family residence on SW. Landau Place near Tigard, Washington County, Oregon. We have determined that the proposed work would be authorized under the terms of the nationwide permit described below, subject to the conditions (Enclosure 2), and provided you receive permits, where required, under Oregon's Removal /Fill Law and appropriate local authorizations. Nationwide permit 33 CFR 330, Appendix A, Section B, 18, authorizes minor discharges of dredged or fill material into all waters of the United States provided: a. The discharge does not exceed 25 cubic yards; b. The discharge will not cause the loss of more than 1/10 acre of a special aquatic site, including wetlands. For the purposes of this nationwide permit, the acreage limitation includes the filled area plus special aquatic sites that are adversely affected by flooding and special aquatic sites that are drained so that they would no longer be a water of the United States as a result of the project; c. The discharge, including all attendant features, both temporary and permanent, is part of a single and complete project and is not placed for the purpose of stream diversion. This verification is valid until two years beyond the date of this letter or until the nationwide permit is modified, reissued, or revoked. All the nationwide permits are scheduled to be modified, reissued or revoked in January 1997. It is incumbent upon you to remain informed of changes to the nationwide permits. We will issue a public notice announcing the changes when they occur. Furthermore, if you commence or are under contract to commence this activity before the date the nationwide permit is _ -__ modified-or- revoked, you - will- have - twe-l-ve- months from- the- da -te -of -2- the modification or revocation to complete the activity under the present terms and conditions of the nationwide permit. If you have any questions, regarding our nationwide permit authority, please contact me at the above address or telephone (503) 326 -6996. Sincerely, ale Haslem Project Manager Regulatory Branch Enclosures Copies Furnished: ODSL - Parks OP -GP w /Enclosures - Black 10/12-'1994 12 :04 FROM SRI /SHAPIRO TO 295225: P.01/01 Wetla e° Und _. __ ary �� �, o • 1 .\\ .. .._ ..- " 011 li PA. ' • -_t_____Jf 1 . _-.- _ • --.... _ -.. _ _ 7 elti, ••,.. -,,,,."..-, "-\:-- _ Aim,' 444, • N. ' c, , t "X " tom • r , 4 l • �, 777 i iiii. • . 3 .-- � _ � v 195 1 y - 2Y _ - • • .1� f � ��- • ; 'ter `h M X O O ,- <1---- • i '� -�_ 205 1 '� `C n i t ! , n 2 vii IN — e � ~ 210 11111'! ---- -- ` I __ — - , 1 '0 o a CD -. v� • LVTT i CC ��' t� - -�__ o N ;215 i " ..; 4:4.7-------7-7-4-. - . . --- • • _ — L _ .....Z___<"-.-"--...4 V :I'- 1 _ • ..„...,..,." Figure 4_ Wetland delineation boundaries and sample sites. TfTai P.ni /Fit • •®fl May 9, 1995 DSL DIVISION OF Michael Church Homes, Inc. Mike Church STATE LANDS 7740 SW 35th Ave Portland, Oregon 97219 STATE LAND BOARD JOHN A. KITZHABER Governor PHIL KEISLING RE: State Project No. FP -9680 Secretary of State Ash Creek Tributary, Washington County, Fill JIM HILL State Treasurer Dear M r. Church: 775 Summer Street NE • Salem, OR 97310 -1337 (503) 378 -3805 We have received your application to fill 11.5 cubic yards FAX (503) 378 -4844 of fill material in the tributary of Ash Creek in or near TTY(503)378 -4615 Tigard, Oregon. The Division of State Lands requires a permit if you plan to remove, fill or alter 50 cubic yards or more of material within the banks of a waterway. Based on your application, your project involves the removal of less than 50 cubic yards of filling material, therefore a State removal -fill permit is not required. You must also receive authorization, when required, from the U.S. Army Corps of Engineers and local planning department before beginning construction. Please contact us if you have any questions. Sincerely, G�✓ William Parks Natural Resource Coordinator Field Operations WP /jw rpa:96 cc: Dale Haslem, U.S. Army Corps of Engineers SRI /Shapiro, Inc. (Dan Cary) Wetland Determination, Delineation Z�> and Compensatory Mitigation for the Proposed Development of Lots 7 and 8 in the Landau Woods ,4C Residential Development Site ry in Tigard, Oregon - 7 Prepared For Mike Church Michael Church Homes, Inc. 7440 S.W. 35th Avenue Portland, Oregon 97219 Prepared By Dan Cary John van Staveren SRI /SHAPIRO, Inc. 1650 N.W. Front Avenue, Suite 302 Portland, Oregon 97209 SRI / SHAPIRO Project #7945231 May 2, 1995 1.0 INTRODUCTION SRI /SHAPIRO, Inc. was contracted by Michael Church Homes, Inc. to determine and delineate the extent of wetlands on and north of lots 7 and 8 in the Landau Woods residential development in Tigard, Washington County, Oregon (T1S, R1W, Section 25) (Figure 1). A single family residence is proposed to be built on each lot. In addition to our wetland findings, a discussion is included of the proposed development impacts and compensatory mitigation for the impacts. The two lots are located northeast of the cul -de -sac at the end of S.W. Landau Place in the area bounded by S.W. Elmwood and S.W. Landau Streets to the north and south, and between S.W. 74th and S.W. 77th Avenues on the east and west. Field work was conducted on October 5, 1994. 2.0 METHODOLOGY AND SOURCE MATERIALS 2.1 The Federal Manual The primary source document used in our investigation was the Corps of Engineers Wetlands Delineation Manual, Technical Report Y -87 -1 (Environmental Laboratory 1987). This manual is currently recognized by both the Oregon Division of State Lands and the Army Corps of Engineers for the delineation of wetlands within Oregon. The 1987 manual provides technical criteria, field indicators, and recommended procedures to be used in determining whether an area is a jurisdictional wetland. The manual requires three technical criteria in undisturbed situations before areas can be considered wetland under federal or state jurisdiction. These criteria are hydric soils, hydrophytic vegetation, and wetland hydrology. Hydric soils are those that have formed exclusively under wet conditions (soils which characteristically have high water tables, soils which are ponded or are frequently flooded, or soils which are otherwise saturated for extended periods during the growing season). Hydrophytic vegetation consists of those plant species that have adapted to growing in substrates which are periodically deficient of oxygen due to saturated soil conditions. Five basic groups of vegetation are recognized based on their frequency of occurrence in wetlands. These categories, referred to as the "wetland indicator status," are as follows: obligate wetland plants (OBL) are estimated to occur almost exclusively in wetlands (>99%); facultative wetland (FACW) plants are estimated to occur 67-99% of the time in wetlands; facultative (FAC) plants occur equally in wetlands and non - wetlands (34 -66 %); and facultative upland (FACU) plants usually occur in non- wetlands (67 -99 %). If a species is not assigned to one of the four groups described above it is assumed to be an obligate upland (UPL) plant, which is estimated to occur almost exclusively in non - wetlands (>99%). In addition, plants designated "NI" have not yet received a wetland indicator status, but are probably not obligate upland. 1. • — ; : , �RII Ii �, • rk� > 1 " ,,..,%.- ���`\ it,1 �i, �VJ.'� � L 1 _ ,,,,D,1,__, / — `id v II •l c I 3 00 ,\ . � �' - I ▪ ' , iiaL i Ur c • _ L � • :_1 4 : I � � - ? .c l , , u V: r_ . 1 t Ti' 0 - �' ��I ' �I� �i� � � ICI kW i • T sl y �, } }1,•w' , -= FF - k - ?, I � y , ___,____ :,�v , I 1 _ ;. - :,, mo d.- '.°��� "s:J; 1��W ,. �.•= '/ a '� � � o Vic AA mill Tlk / -�ye _,3'3°-'11,--i��D .?-'4`' 7 -#112 F4 0 \` 4, \`ls „. i 1 .- -- „p„.-if r. " 11 �tl ter O E W � ii � 2,111,16.4*.. `i jp i , t � -< t o da' gl L I� 1 26 4 ' -:� I�-- -� -_ � - - - - - �p�a - - W -a, � . I F.i ' � � r "� °� 'q . ' � � � � gj'j � ��N:9A�1��q � I /1 '� Q 3; , I . ,II t c i - ® w te, ai �� �� i—.- �' \I t.:MMil n��1 �. . � I 0 Il i 1 I i ° • -- - . � M III �� 1 \ \ r T 1 -"wow f d 1 , l -, b ,,' r : ► . -ti i �6-i='� I Ftil ♦ n '. 4'1 1 6® �� _ � ` `v'a "_ ��\ ,' j "�'4 1--`1 •, „. - - !; t.' .... ':-/' filfr-- 'Tho 1.... , \ it .. ji, —__ n � ti i ` A • - ' - ' *� J v =' — L - ®,lc ed 1 i lrr _; . ' - ' e . i ce _ 7` ' - J II (/ ji: -. .-.-- •,, 1 MC __"' r___■1____ ME M s ?'"A ' ,I datillriga 631.--...J ---_:., ! I 11 a �, � , . e IMI , x`5 1 3 . I to • ,, ` j / /�- ��I ,r/ . . t .1_. ". ` .---- 'i .. . - - -, .. , / 1 . t ', I ., G Ms _erg _ / :r -- Z I iii II i ; t 1 ll �. .1 !. L .� : - 7 : I • "• /7 ii • j rOrr i� i � Ix 5 • ®� , � � • % • Z o o ; �C II,.; I• �; I ; I,, ��`,I\ \ � : • 4414malla I ipil"\W"vier '33- ..i id .1fflinyLi N.M.hstw,--)..-,.:at.41a!ircelli ,Lomalltsviltwi , e!,___ ''s %r A " '�� ; IIL • — \� I = � � ` 1 I& • • ' t** :a -^,.'4",* *> -\filip i 8 t Sch� �\ 64 W } 5 , �', I S \ . : 0" , 1. ' X-' vim\ '` . Al ' , J O i • W � , N 0 ,\ Y : !.4 �� \ p - II•. 7945231 5/2/95 Location and generalized topography for the development site on S.W. F I G U R E — Landau_Place -in Tigar-d,- Oregon- (U:S . -G-S— Beaverton,, Oregon -5- minute quadrangle, 1:24000, provisional editions 1961 and 1984). SRI / S HAP IRO I N C O R P O R A T E D The 1987 manual defines wetland hydrology as saturation within a major portion of the root zone (usually above 12 inches) typically for at least 12.5% of the growing season. The wetland hydrology criterion can be met, however, if saturation within the major portion of the root zone is present for only 5 percent of the growing season depending on the wetland status of the plant community. The growing season for any given site or location is determined from U.S. Soil Conservation Service data and information. 2.2 Field Methodology Prior to beginning field work, a compilation of available information and data was conducted. This included a review of soil series boundaries, the U.S.G.S. topographic quadrangle, and the U.S. Fish and Wildlife Service National Wetland Inventory map. These efforts were made to develop a preliminary indication of where potential wetland may exist and to facilitate the on -site gathering of data. Observations of soils, vegetation, and hydrology were made using the "Routine Onsite" method of the manual. One -foot diameter soil pits were excavated to a depth of 18- inches in selected locations. The soil profiles were examined for hydric soils and wetland hydrology field indicators. In addition, a visual percent -cover estimate of the dominant species of the plant community for a 30 -foot radius area was performed using soil pit locations as a center of reference. Data were recorded in the field and subsequently transferred to standard wetland delineation data sheets (included in the Appendix). Data were collected for representative sampling locations; however, numerous soil pits were excavated between these data points to verify changes in the three parameters. 3.0 PRESENT SITE CHARACTERISTICS 3.1 Topography The project site is located on the northern edge of the City of Tigard in the Tualatin Hills within the Ash Creek drainage. Its topography is moderately sloping, generally toward the north. An unnamed tributary of Ash Creek flows west across the northeast corner of lot 8 and then flows along the north property line of lots 7. and 8. A small (approximately 12 feet by 20 feet), shallow (approximately 18 inches deep), oval - shaped, natural depression is located near the center of lot 8's northern property line. Elevations within the property boundaries range from approximately 191 to 215 feet NGVD. tt 3.2 Hydrology Hydrologic activity on the site is dominated by the unnamed perennial tributary of Ash Creek, which collects and transports surface and ground water to the west cutting across the northeast corner of lot 8. Surface flows in the creek fluctuate greatly and are Wetland ,Determination, Delineation, & Compensatory Mitigation for Proposed Landau Woods Site Page -2- primarily influenced by storm events. Recent residential development upslope has probably influenced runoff frequency and duration in the stream. Streambank soils stay saturated immediately adjacent to the creek through the early summer. Groundwater is the principal hydrologic source for the small depression, although it also receives overflow from the stream during major storm events. The wetland hydrology criterion was largely satisfied by direct observation of soils that were saturated at or near the surface. In addition, active oxidized root channels in the upper soil layers were observed a short distance upslope of currently saturated areas closer to the stream and in the depression. These channels of oxidized mineral soil around the roots indicate actively growing plants during times of soil saturation. 3.3 Soils Two soil types, Helvetia silt loam, 7 to 12 % slopes (map unit 19C) and Wapato silty clay loam (map unit 43) have been mapped by the Soil Conservation Service (SCS 1983) as occurring on the project site (Figure 2). Helvetia silt loam, 7 to 12 % slopes is mapped on the slope of the southern half of both lots and was not in the vicinity of the study plots. Wapato silty clay loam is mapped in the flood plain along the creek in the northern edge of both lots in the vicinity of the study plots. Wapato silty clay loam has been listed as hydric by the SCS (1989). Wapato silty clay loam is a poorly drained soil with moderately slow permeability that - formed in recent alluvium on flood plains. The soil is classified as a fine- silty, mixed, mesic Fluvauquentic Haplaquall. The surface layer is approximately 14 inches thick and very dark grayish brown silty clay loam. The subsoil is dark grayish brown silty clay loam about 28 inches thick. Soils sampled on the site were primarily comprised of silt loam and clayey silt loam, with colors ranging from dark gray to black (10YR 4/1 - 5Y 2.5/1) adjacent to the creek to very dark grayish brown (10YR 3/2) in the depression and in other areas. Mottling was apparent at several sampling sites. 3.4 Vegetation Lot 7 is dominated by a relatively mature mixed deciduous/ coniferous forest that has been only recently disturbed along the edges during subdivision development. Lot 8 has been recently cleared and is dominated by weedy herbaceous species. The mix of species indicates primarily upland conditions, with the exception of those in the floodplain along the creek in the northern edge of the site. The tree canopy is dominated by western red cedar (Thuja plicata)(FAC) and bigleaf maple (Acer macrophyllum)(FACU), with Douglas fir (Pseudotsuga menziesii)(UPL), red alder (Alnus rubra)(FAC), and Oregon ash (Fraxinus latifolia)(FACW) also present. The latter species is common in the floodplain off -site to the north. Wetland Determination, Delineation, & Compensatory Mitigation for Proposed Landau Woods Site Page - 3 - .. � �tw - I .✓ --•c(41,,';'•,144 ; i "g�,l ^ _ w� ' G ` , !,r' Y• C.;'''.-77.-,1,5i1,%". 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F . a -, 4 ut1 4 a , tr ,:. ' a 3 - �.yS�Ytl t1' � °+' -u .- �Q a, F a r ' )S y �_ i7 ib r �,� � Z> Y °'� ti it� 'c j"RL r ?o i�r ihK� =r ytf ;_ ? s. ST CF' . J w s. ! 1' i' ., u . : y , ,,, M .s • .. a 3 a � . ;T ty. L '� • le jI 3 ' y am. a• `... F r t t - `. --..` i,, � � �- •�L '�ti.\ s r l t; c oas a `. y ' t ^ *. � .. . &,i $ti . 1 t' + r f.'.4 <45 -1.•11,11 � 1�;, . ` ` '� '+": ` ” - .- v > >'r.a - : 1+`.!r�g. ��?'. � ..u.. �., ?"3'.'vwrA?S S =ifr 7945231 5/2/95 Soil mapping units for the development site on S.W. Landau Place in FIGURE Tigard— Oregon- (Soil- Conservation- Ser-v-ice. Soil- Survey- of - Washington . - County, 1:20000, 1982) . 2 SRI / SHAPIRO I N C O R P O R A T E D The shrub /woody vine understory includes red -osier dogwood (Cornus stolonifera)(FACW), Scouler's willow (Salix scouleriana)(FAC) and Himalayan blackberry (Rubus discolor)(FACU) in the wetter areas. Red elderberry (Sambucus racemosa)(FACU), western hazelnut (Corylus cornuta)(FACU), red huckleberry (Vaccinium parvifolium)(UPL), Oregon grape (Berberis aquifolium)(UPL), English holly (Ilex aquifolium)(UPL) dominate other areas of the site. The blackberries have formed thickets along the creek. The herbaceous /graminoid understory includes such species as pond water - starwort (Callitriche stagnalis)(OBL) in the inundated creekbed and marshpepper smartweed (Polygonum hydropiper)(OBL), American speedwell (Veronica americana)(OBL), small - fruited bulrush (Scirpus microcarpus)(OBL), barnyard grass (Echinochloa crusgalli)(FACW), reed canary grass (Phalaris arundinacea)(FACW), soft rush (Juncus effusus)(FACW), creeping buttercup (Ranunculus repens)(FACW), large -leaf avens (Geum macrophyllum)(FACW -), common velvet grass (Holcus lanatus)(FAC), colonial bentgrass (Agrostis tenuis)(FAC) and climbing nightshade (Solanum dulcamara)(FAC) in the wetter areas along and in the stream. Reed canary grass (FACW) dominates the depression. Herbaceous /graminoid species common in upland areas include bitter dock (Rumex obtusifolius)(FAC), bracken fern (Pteridum aquilinum)(FACU), perennial ryegrass (Lolium perenne)(FACU) and sword fern (Polystichum munitum)(FACU). 4.0 DISCUSSION AND CONCLUSIONS The U.S. Fish and Wildlife Service, National Wetland Inventory (NWI) program has mapped the tributary of Ash Creek as a palustrine forested, broad - leaved deciduous, saturated, semipermanent, seasonal (PFO1Y) body of water (USFS, 1981) (Figure 3). This mapping is consistent with SRI /SHAPIRO's field investigation. Our investigation of hydric soils, wetland hydrology, and hydrophytic vegetation has determined that approximately 725 square feet, or 0.02 acres, of the project site is potentially jurisdictional wetland (Figure 4). The southern bank of the creek contains wetland as it crosses the northeastern corner of lot 8. North of the stream there appears to be an extensive wetland on park property, which was not delineated. The south creek -bank wetland and creek continues west within 25 feet of lot 8's northern property line until the creek takes a sharp bend southwest. The creek and wetland is then adjacent to the shared corner of lots 7 and 8, but north of the property line. The creek flows northwest away from lot 7's northern property line and wetland is located as much as 40 feet to the north. Offsite residential development upslope has probably influenced runoff frequency and duration in the creek. Stormwater has eroded the streambed into a steep - banked channel. Where the creek crosses lot 8, gravel and large rocks have been placed in the creekbed to combat erosion. This has partially limited hydrophytic plant growth in the streambed. 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'•A' \�,, ... 'ra� `4 .'.: \ I. I! �; I 1 ,,I. • "I!• il 1I I. (- • r.• ,nth,:rlys`: i :•, • o` e• P -- IY.� •I ' :I. \. A s,! �� 4. ` EM Ian F. • y ' ; , w 1 p :. . • II • r . i -, j4 u • . lsnosa6 ,� \ .. - ; • ,..._,>� - /, i - al. . •� . lll__l Ml 1. 7 tY \ , • �7VKZ I ; • "• : . ' > . = E PO fvUY. ...'•' 1 • ` a 2 . 7945231 5/2/95 National Wetlands Inventory designations for the development site on FIGURE .S..W._ Landau_ P - lace_in Tigard, Oregon_(U..S.._Eish_& Wildlife_S.ervice • – Beaverton, Oregon, 7.5- minute quadrangle, 1:24000, based on 1981 color infrared aerial photography). SRI / SHAPIRO I N C O R P O R A T E D • �P c, , " P P �� .... t fo p . ..cs, . ; ��• •. . , Stream not Jr et/ • •• surveyed bO ar ••ti •` __ __. 1 FT: i _ _ 3 4 2 1 • \.. 6 .•.•. I LOT 6 LOT 7 M '.4' N 0 Cc_ \ . i.. Z ___I___ ___ ___ __. _ _... j X N----- / y ' LOT I LOT 9 r5-.Tf: F . ,_ 0 0 J W i J • 1 7'' . m • LANDAU WOODS Tigard, Oregon i .. X110 i ti - ,i ��i ® Sample site NORTH Fi Wetland 0 40 80 FEET . Map from Mike Church Homes, 1994 7945231 5/2/95, FIGURE Wetland - areas -and- sample- sites - for - Lots_ # -7_and_ #_ _._Landau n ' Place in Tigard, Oregon. 4 SRI /SHAPIRO INCORPORATED A sewer line was routed along the south side of the depression in 1991 permanently altering the hydrology. The small shallow depression at the northern end of lot 8 probably ponded water and was larger (approximately 15 feet by 25 feet) before the sewerline was installed. Currently, hydrophytic plants dominate what remains of the depression (approximately 12 feet by 20 feet), and hydric soils exist. Soils do not stay saturated into late summer, but long enough to create anaerobic conditions as evidenced by active oxidized root channels. A wetland drainage pattern was another indicator of active hydrology. It should be noted that wetland boundaries determined by SRI /SHAPIRO do not become jurisdictional until the U.S. Army Corps of Engineers and the Oregon Division of State Lands review and approve our work. 5.0 PROPOSED SITE IMPACTS AND COMPENSATORY MITIGATION The owner proposes to build a house on each of the two residential lots. The house on lot 7 will have no impact on the wetland or the 25 foot buffer required by United Sewerage Agency (USA). With the wetland buffer and property boundary setbacks it is impossible to fit a house on lot 8. However, to allow space to build a house on lot 8 it is proposed that the buffer adjacent to the small isolated depression wetland and the buffer along the streambank wetland be encroached upon (Figure 5). Though the owner has indicated he may not actually fill the small depression wetland, he would like to obtain a fill permit so that the wetland will not be considered in buffer determination. Figure 6 shows a cross section of the depression wetland as it exists today. It is our understanding that Lee Walker of USA has indicated (if the fill permit is obtained) that approval will be possible to allow up to 15 feet of encroachment of the wetland buffer along the creek. The plot plan as proposed will only encroach upon a small area within the creek -side wetland buffer by approximately 10 feet (approximately 0.003 acres), leaving a 15 foot wetland buffer untouched. The wetland depression to be filled is approximately 207 square feet or .005 acres and could be filled as much as 18 inches deep or a total fill of approximately 11.5 cubic yards. Due to the small size of the wetland to be filled (less than 50 cubic yards), a permit from The Oregon Division of State Lands is not required. Though mitigation is not officially required, and because no mitigation area is available on site, it is proposed that compensatory mitigation for fill impacts and buffer encroachment be made by an enhancement of the wetland and buffer on park property to the north of lots 7 and 8. This enhancement will involve plantings of riparian and wetland shrubs along the stream (Table 1). The plantings will augment the existing cover, adding to food value and species diversity. The blackberry thickets along the stream would need to be removed and their removal maintained for at least 3 years to allow the newly planted shrubs to become established. Wetland Determination, Delineation, & Compensatory Mitigation for Proposed Landau Woods Site Page - 5 - bY \ ,., t - • . 4 ... 2 .. . . \ . . ..... . . . c‘, 0,,.m • A A . 1 1- HOU - t LO LOT 7 r- • 0 ~ -I W J D O - m Z LOT 8x • LANDAU WOOD Tigard, Oregon ��UIIII � . um Illlllp ri Wetland NORTH o zo 4 ® Wetland fill FEET Map from Mike Church Homes, 1994 7945231 5/2/95 Wetland area, 25 -foot wetland buffer, and house location on Lot #8 on FIGURE r S.W. Landau Place in Tigard, Oregon. 5 SRI/ SHAPIRO i . I N C O R P O R A T E D A WETLAND- A' 195 - FILL 190 w [ f 0 20 40 DISTANCE IN FEET 7945231 5/2/95 Section through the wetland to be filled on Lot #8 on S.W. Landau Place FIGURE in Tigard, Oregon. 6 SRI /SHAPIRO I N C O R P O R A T E D - 6.0 REFERENCES Environmental Laboratory, 1987. "Corps of Engineers Wetland Delineation Manual". Technical Report 4 -87 -1. Reed, Porter B., Jr. 1988 (May). National List of Plant Species That Occur in Wetlands: Northwest (Region 9). Prepared by the U.S. Fish and Wildlife Service, St. Petersburg, FL. NERC - 88/18.37. U.S.D.A Soil Conservation Service. Oregon Hydric Soils by Counties. 1989. U.S.D.A Soil Conservation Service. Soil Survey of Washington County, Oregon. July 1982. U.S. Fish and Wildlife Service National Wetlands Inventory maps (Beaverton, OR, 1:58,000 1981 CIR aerial photography, overlaid on USGS quadrangle). U.S. Geological Survey topographic map (Beaverton, OR, 1:24,000, 7.5 - minute quadrangle, 1961, photorevised 1984). Wetland Determination, Delineation, & Compensatory Mitigation for Proposed Landau Woods Site Page - 6 - PPS P WETLAND DELINEATION DATA FORM /SHAD I Routine Onsite Method • Applicant: MICHAEL CHURCH HOMES, INC. Project t: 7945231 -01 Date: 10/05/94 County: WASHINGTON State: OR Township: 15 Range: 1W Section: 25 Investigator: DEC Sample Site: 1 Soils Mapped Series and Phase: WAPATO SILTY CLAY LOAM • On Hydric Soils List: YES Drainage Class: POORLY DRAINED Matrix Color: 10YR 3/2 Mottles: YES Mottle Color: 7 .5YR 4/4 Hydric Soil Criteria met: YES Comment: SILT LOAM; MIXED, DISTURBED Hydrology Inundated: NO Depth: Saturated Soils: NO Depth to Water Table: ) 18 Active Oxidized Rhizospheres Present: YES Wetland Hydrology Criteria met: YES Comment: ( Vegetation Type Dominant Species FWS Status Stratum Overall Herb GELIM NACROPHYLLUM FACW+ 20% `.' Herb PHALARIS ARLINDINACEA FACW 50% Herb RANUNCULUS REPENT FACW 20% Herb SOL ANUM DULCAMARA FAC+ 10% 85% Woody Vine RUBUS DISCOLOR FACU 100% 15% • • • Percentage of dominant (>= 20:) species that are FAC, FACW or OBL: 75% Hydrophytic Vegetation Criteria met: YES -- - Comment: Determination: Wetland i — — Commenf: . • WETLAND DELINEATION DATA FORM ����-� ���������-����� `^�m���.p .~nm mm—mm— �� x`�n�' Routine onaite Method Applicant: MICHAEL CHURCH HOMES, INC. Project w: 7945231-02 Date: 10/05/94 county: WASHINGTON State: OR Township: 15 Range: 1W Section: 25 Investigator: DEC Sample Site: 2 Soils Mapped Series and Phase: WAPATO SILTY CLAY LOAM On Hydric Soils List: YES Drainage Class: POORLY DRAINED Matrix color: 1OYR 3/2 Mottles: YES mottle color: 7'5YR 3/3 Hydric Soil Criteria met: YES ' Comment: SILT LOAM; MIXED, DISTURBED Hydrology Inundated: NO Depth: " Saturated Soils: NO Depth to Water Table: > 18 Active Oxidized Rhizospheres Present: YES Wetland Hydrology Criteria met: YES Comment: Vegetation - \ Type i Dominant Species FWS Status Stratum ! Overall Herb A8RDSTIS 7E7VLIS FAC 65% Herb GELPI M4CROPHMLL FACW+ 15% Herb RANUNCULUS REPENS FACW 20% 60% Woody Vine RUBL/S DISCOLOR FACU 100% 40% • Percentage of dominant (>= 20%) species that are FAC, FACW or OBL: 67% Hydrophytic Vegetation Criteria met: YES Comment: Determinatior\: Wetland Comment: WETLAND DELINEATION DATA FORM SRI/SHAPIRO Routine Onsite Method Applicant: MICHAEL CHURCH HOMES, INC. Project #: 7945231 -03 Date: 10/05/94 County: WASHINGTON State: OR Township: 15 Range: 1W Section: 25 Investigator: DEC Sample Site: 3 Soils Mapped Series and Phase: WAPATO SILTY CLAY LOAM On Hydric Soils List: YES Drainage Class: POORLY DRAINED Matrix Color: 10YR 3/2 Mottles: NO Hydric Soil Criteria met: NO Comment: SILT LOAM; MIXED SOIL, DISTURBED Hydrology Inundated: NO Depth: Saturated Soils: NO Depth to Water Table: >18 Active Oxidized Rhizospheres Present: NO Wetland Hydrology Criteria met: NO Comment: Vegetation Type Dominant Species FWS Status Stratum Overall Sapling /Shrub CCRYLUS CORNUTA FACU 100% 10% Herb PHALARIS ARUNDINRCER FACW 100% 40% 1:1, Woody Vine RUBUS DISCOLOR FACU 100% 50% Percentage of dominant (>= 20:) species that are FAC, FACW or OBL: 33% Hydrophytic Vegetation Criteria met: NO Comment: Determination: Non - Wetland Comment : r WETLAND DELINEATION DATA FORM SRI./S1 ,A I Routine Onsite Method Applicant: MICHAEL CHURCH HOMES, INC. Project #: 7945231 -04 Date: 10/05/94 county: WASHINGTON State: OR Township: 15 Range: 1W Section: 25 Investigator: DEC Sample Site: 4 Soils Mapped Series and Phase: WAPATO SILTY CLAY LOAM On Hydric Soils List: YES Drainage Class: POORLY DRAINED Matrix Color: 10YR 3/2 Mottles: YES Mottle Color: 7 .5YR 3/4 Hydric Soil Criteria met: YES Comment: SILT LOAM; MIXED SOIL, DISTURBED Hydrology Inundated: NO Depth: Saturated Soils: NO Depth to Water Table: >18 Active Oxidized Rhizospheres Present: NO Wetland Hydrology Criteria met: NO �.. >� Comment: Vegetation Type Dominant Species FWS Status Stratum Overall , l Herb 7UNCUS EFFUSUS FACW 10% Herb PHALARIS ARUNOINACEA FACW 30% Herb RANUNCULUS REPENS FACW 30% Herb RUMLX °BTUSIFOLIUS FAC 25% 100% • • Percentage of dominant .(>= 20'.) species that are FAC, FACW or OBL: 100% Hydrophytic Vegetation Criteria met: YES Comment: • Determination: Non - Wetland Comment_ W.E_T_LAND W.I7H_H_Y_DR.OL.O_GY REMOVED - D.RAI.NED_P_OND • WETLAND DELINEATION DATA FORM SRI/SHAPIRO Routine onsite Method Appli MICHAEL CHURCH HOMES, INC. Project #: 7945231 -05 Date: 10/05/94 County: WASHINGTON State: OR Township: 1S Range: 1W Section: 25 Investigator: DEC Sample Site: 5 Soils Mapped Series and Phase: WAPATO SILTY CLAY LOAM On Hydric Soils List: YES Drainage Class: POORLY DRAINED Matrix Color: 10YR 4/1 Mottles: YES Mottle Color: 7 .5YR 3/4 Hydric Soil Criteria met: YES comment: SILT LOAM Hydrology Inundated: NO Depth: " Saturated Soils: YES Depth to Water Table: <18 Active Oxidized Rhizospheres Present: YES Wetland Hydrology Criteria met: YES comment: SOIL SATURATED TO. SURFACE Vegetation Type Dominant Species FWS Status Stratum Overall Herb HOLCC'S LANA TUS FAC 25% Herb PHALARIS ARCINDINACEA FACW 30% Herb SOLANCIM DCILCAMARA FAC+ 30% Herb VERONICA AMERICANA OBL 15% 75% Woody Vine RUBLIS DISCOLOR FACU 100% 25% Percentage of dominant (>= 20'.) species that are FAC, FACW or 08L: 75% Hydrophytic Vegetation Criteria met: YES Comment: Determination: Wetland — Comment: . . 4 WETLAND DELINEATION DATA FORM ����lr ���������.����� ���~� �m m����� mou Method Applicant: MICHAEL CHURCH HOMES, INC. Project #: 7945231-06 oate: 10/05/94 County: WASHINGTON state: OR Township: 15 Range: 1W Section: 25 • Investigator: DEC Sample Site: 6 Soils Mapped Series and Phase: WAPATO SILTY CLAY LOAM On *'uric Soils List: YES Drainage class: POORLY DRAINED matrix color: 5Y 2.5/1 Mottles: YES Mottle Color: 10YR 3/4 Hydric Soil Criteria met: YES comment: GRAVEL 0-5"; SILT LOAM 5+" /�. �.. Hydrology Inundated: NO Depth: " Saturated Soils: YES Depth to Water Table: <18 Active Oxidized mhizoenhe,es Present: YES Wetland Hydrology Criteria met: YES : oummen+: SOIL SATURATED TO SURFACE; INUNDATION/FLOWING WATER 1 FOOT AWAY Vegetation ) Type Dominant Species FWS Status Stratum Overall Herb A8ROS7ZS 7E7VLO'S FAC 10% Herb CALL ZTRICHE ST4GNALIS OBL 20% Herb ECHINOCHL OR CRUS8RLLI FACW 10% Herb RANUNCULUS REPENS FACW 60% 100% [: .,. Percentage of dominant (>= zo%> species that are FAC, FACW or Om': 100% Hydrophytic Vegetation Criteria met: YES Comment: Determination: Wetland • `- -~