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APPROVED RESUB 3-BLD2022-1135+Biologist Report+10.6.2023_11.49.27_AM+3826098APPROVED BY PLANNING Oct 272023 BLD2022-1135 Altmann Oliver Associates, LLC AOA PO Box 578 Carnation, WA 98014 October 6, 2023 Mae Javelona mjarchitecture05@gmail.com Office (425) 333-4535 Fax (425) 333-4509 Environmental Planning & Landscape Architecture AOA-7090 SUBJECT: Wetland and Stream Reconnaissance for 17727 — 76t" Ave. W. Parcel 00513600002203, Edmonds, WA (Revised) CRA2023-0132 Dear Mae: I have updated this report to address the September 20, 2023 information request letter from the City of Edmonds. Existing Site Conditions On March 21, 2023 AOA conducted a wetland and stream reconnaissance on the subject property utilizing the methodology outlined in the May 2010 Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0). The site is currently developed with a single-family residence, detached shed, gravel driveway, and maintained yard. No wetlands or streams were identified on the site. Vegetation on the site included Douglas fir (Pseudotsuga menziesii), western red cedar (Thuja plicata), and various ornamental trees and shrubs as well as Himalayan blackberry (Rubus armeniacus), English ivy (Hedera helix), and bedstraw (Galium aparine). No definitive hydrophytic plant communities were observed on or immediately adjacent to the property. Borings taken throughout the site revealed high chroma non-hydric soils and there was no evidence of ponding or prolonged soil saturation anywhere on or immediately adjacent to the site. Attachment A contains a data sheet prepared for a representative location in the uplands on the site. This data sheet documents the vegetation, soils, and hydrology information that aided in the no wetland determination for the property. Ornamental Landscape Features There are several concrete -lined excavated ponds within the center of the property that were clearly excavated in upland areas and are not considered wetlands. RESUB Oct 06 2023 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT Mae Javelona October 6, 2023 Page 2 of 4 These areas were intentionally created within a nonwetland site as landscape features and therefore do not meet the definition of a wetland as defined in EMC 23.40.005 (below). "Wetlands" means those areas that are inundated or saturated by ground or surface water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands do not include those artificial wetlands intentionally created from nonwetland sites, including, but not limited to, irrigation and drainage ditches, grass -lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990, that were unintentionally created as a result of the construction of a road, street or highway. However, wetlands may include those artificial wetlands intentionally created from nonwetland areas created to mitigate conversion of wetlands if permitted by the city (WAC 365-190-030(22)). View of excavated ornamental landscape features. Mae Javelona October 6, 2023 Page 3 of 4 Off -Site Wetlands and Streams and Interrupted Buffer The City of Edmond's GIS mapping indicates the presence of a wetland and associated creeks (Perrinville Creek and potential tributaries) within the Snohomish County Park located off -site to the west of 76th Ave. W (Attachment B). The roadway separating the site from these potential critical areas is a public paved (approximately 25-foot wide) road that effectively disconnects the site from any critical areas located on the west side of the road. The subject property is relatively flat with the western portion sloped and the site does not provide any significant stormwater storage function for any wetlands on the west side of the roadway. In addition, the stormwater filtration function of the subject property is also severely limited since any runoff from the site that may potentially enter the wetland must flow across a heavily used paved road prior to entering the wetland. Finally, the subject property consists primarily of yard that does not provide significant habitat for wildlife in general or habitat for any specific wetland dependent wildlife species. Per EMC 23.40.220.C.4: Development Proposals within Interrupted Stream or Wetland Buffers. Adjacent areas that may be physically separated from a stream or wetland due to existing, legally established structures or paved areas may be exempted from the prescribed buffer widths if proven scientifically to be functionally isolated from the stream or wetland. The director will require the applicant to provide a site assessment and functional analysis documentation report by a qualified critical area consultant that demonstrates the interrupted buffer area is functionally isolated. The director shall consider the hydrologic, geologic, and/or biological habitat connection potential and the extent and permanence of the physical separation; The public roadway that separates the site from any potential critical areas on the west side of 76th Ave. W is a permanent roadway that will remain in perpetuity. As discussed above, the subject property is completely separated from any potential critical areas on the west side of the roadway and the property does not provide any significant hydrologic, geologic, or habitat functions to critical areas on the west side of the road. Conclusion No wetlands or streams were identified on the site and any potential buffers from critical areas on the west side of 76th Ave. W. would not cross the roadway. This determination is based on a field investigation during which no definitive hydrophytic plant communities, hydric soils, or evidence of wetland hydrology or channels were observed on the site. Mae Javelona October 6, 2023 Page 4 of 4 It is my understanding that all of the statements and conclusions presented in this report are accurate. If you have any questions regarding the reconnaissance, please give me a call. Sincerely, ALTMANN OLIVER ASSOCIATES, LLC d- John Altmann Ecologist Attachments PDmi Map Portal Datasheet Map 3 Snohomish County Planning &Development Services /27/2023 100.0 0 50.00 100.0 Feet All maps, data, and information set forth herein ("Da a"), are for illustrative purposes only and are not to be considered an official citation to, m representation of, the Snohomish County Code. Amendments and updates to the Data, together with other applicable County Code provisions may apply which are not depicted herein. Snohomish County makes no representation or wa—y concerning the content accuracy, currency, ompletaness or quality of the Data contained herein and expressly disclaims any warranty of merchantability or fitness for any particular purpose. All persons accessing or otherwise using this Data assume all responsibility for use thereof and agree to hold Snohomish County Projection: NAD_1983_StatePlane_Washington North_FIPS_4601_Feet harmless from andagainRanycl—ge,—,claimorrabilityadsmgoItIfanyerr defectoromi,,Oneontainedwithi,aidWt.. Planning and Development Services, Snohomish Count Washiinegton State law, Ch. -56nRCW,p ehiblts a and local agen es from providing access to lists of indivduals intended for use for g p y om rcial purposes and, thus, ocmm cial us may be made of any Data comprising lists of individuals contained herein. 1 1 1 t Legend Snohomish County Tax Parcels 1: 600 Notes This map was automatically generated using Geocortex Essentials. ATTACHMENT A DATA SHEETS WETLAND DETERMINATION DATA FORM —Western Mountains, Valleys, and Coast Region Project Site: Parcel 00513600002203 City/County: Edmonds/ Sampling Date: 3-21-23 Applicant/Owner: Song State: WA Sampling Point: DP#1 Investigator(s): John Altmann, Dain Altmann Section, Township, Range: Landform (hillslope, terrace, etc.): terrace Local relief (concave, convex, none): convex Slope (%): Subregion (LRR): A Let: 47.837825 Long:-122.335559 Datum: Soil Map Unit Name: 5 NWI classification: Are climatic / hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (If no, explain in Remarks.) Are Vegetation ❑, Soil ❑, or Hydrology ❑, significantly disturbed? Are "Normal Circumstances" present? Yes ® No ❑ Are Vegetation ❑, Soil ❑, or Hydrology ❑, naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes ❑ No ED Hydric Soil Present? Yes ❑ No ® Is the Sampled Area Yes ❑ No ED within a Wetland? Wetland Hydrology Present? Yes ❑ No El Remarks: Upland Plot, see map for location. VEGETATION — LIcP cr_iPnfifin namPc of nlanfc Tree Stratum (Plot size: 10) Absolute % Cover Dominant Species? Indicator Status Dominance Test Worksheet: 1. Pseudotsuga menziesh 100 ves FACU Number of Dominant Species 2 2 That Are OBL, FACW, or FAC: (A) 3. Total Number of Dominant 6 (B) q Species Across All Strata: 50% = 50, 20% = 20 100 = Total Cover Percent of Dominant Species Sapling/Shrub Stratum (Plot size: 10) That Are OBL, FACW, or FAC: 33 (A/B) Prevalence Index worksheet: 1. Rubus armeniacus 10 yes FAC 2. Total % Cover of: Multiply by: 3. OBL species x1 = 4. FACW species x2 = 5. FAC species x3 = 50% = 5, 20% = 2 10 = Total Cover FACU species x4 = Herb Stratum (Plot size: 10) UPL species x5 = 1. Galium aparine 5 ves FACU Column Totals: (A) (B) 2. Ranunculus repens 5 ves FAC Prevalence Index = B/A = Hydrophytic Vegetation Indicators: 3. Lapsana communis 5 ves FACU 4. ❑ 1 — Rapid Test for Hydrophytic Vegetation 5. ❑ 2 - Dominance Test is >50% 6. ❑ 3 - Prevalence Index is <3.0' 7. ❑ 4 - Morphological Adaptations' (Provide supporting 8, data in Remarks or on a separate sheet) 9. ❑ 5 - Wetland Non -Vascular Plants' 10. ❑ Problematic Hydrophytic Vegetation' (Explain) 11. 50% = 7_5, 20% = 3 15 = Total Cover 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. Woody Vine Stratum (Plot size: 10) 1. Hedera helix 5 eves FACU 2 Hydrophytic Vegetation Yes El No 50% = 2_5, 20% = 1 5 =Total Cover Present? % Bare Ground in Herb Stratum Remarks: US Army Corps of Engineers Western Mountains, Valleys, and Coast — Version 2.0 Project Site: Parcel 00513600002203 SOIL Samolino Point: DP#1 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type' Loc' Texture Remarks 0-15 10YR3/2 100 GSL gravelly sandy loam 'Type: C= Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. ZLocation: PL=Pore Lining, M=Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: ❑ Histosol (At) ❑ Sandy Redox (S5) ❑ 2 cm Muck (A10) ❑ Histic Epipedon (A2) ❑ Stripped Matrix (S6) ❑ Red Parent Material (TF2) ❑ Black Histic (A3) ❑ Loamy Mucky Mineral (F1) (except MLRA 1) ❑ Very Shallow Dark Surface (TF12) ❑ Hydrogen Sulfide (A4) ❑ Loamy Gleyed Matrix (F2) ❑ Other (Explain in Remarks) ❑ Depleted Below Dark Surface (At 1) ❑ Depleted Matrix (F3) ❑ Thick Dark Surface (Al2) ❑ Redox Dark Surface (F6) ❑ Sandy Mucky Mineral (S1) ❑ Depleted Dark Surface (F7) 31ndicators of hydrophytic vegetation and wetland hydrology must be present, ❑ Sandy Gleyed Matrix (S4) ❑ Redox Depressions (F8) unless disturbed or problematic. Restrictive Layer (if present): Type: Depth (inches): Hydric Soils Present? Yes ❑ No Remarks: No redoximorphic features :YJ0Ye]119ZH1 Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required) ❑ Surface Water (Al) ❑ Water -Stained Leaves (69) ❑ Water -Stained Leaves (69) ❑ High Water Table (A2) (except MLRA 1, 2, 4A, and 413) (MLRA 1, 2, 4A, and 46) ❑ Saturation (A3) ❑ Salt Crust (B11) ❑ Drainage Patterns (1310) ❑ Water Marks (61) ❑ Aquatic Invertebrates (1313) ❑ Dry -Season Water Table (C2) ❑ Sediment Deposits (132) ❑ Hydrogen Sulfide Odor (Cl) ❑ Saturation Visible on Aerial Imagery (C9) ❑ Drift Deposits (63) ❑ Oxidized Rhizospheres along Living Roots (C3) ❑ Geomorphic Position (D2) ❑ Algal Mat or Crust (64) ❑ Presence of Reduced Iron (C4) ❑ Shallow Aquitard (D3) ❑ Iron Deposits (135) ❑ Recent Iron Reduction in Tilled Soils (C6) ❑ FAC-Neutral Test (D5) ❑ Surface Soil Cracks (66) ❑ Stunted or Stresses Plants (D1) (LRR A) ❑ Raised Ant Mounds (D6) (LRR A) ❑ Inundation Visible on Aerial Imagery (137) ❑ Other (Explain in Remarks) ❑ Frost -Heave Hummocks (D7) ❑ Sparsely Vegetated Concave Surface (68) Field Observations: Surface Water Present? Yes ❑ No ® Depth (inches): Water Table Present? Yes ❑ No ® Depth (inches): Saturation Present? Yes ❑ No (includes capillary fringe) ® Depth (inches): Wetland Hydrology Present? Yes ❑ No Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: dry US Army Corps of Engineers Western Mountains, Valleys, and Coast — Version 2.0 = City of Edmonds Map Title Attachment B 17629 i I I , I 4 ' 17707 I Legend ' I i Creeks Wetlands I ' 7715 Wetlands Boundary ' I Wetland Boundaries Not Completel I I I = Wetland Known Extents DOH Wellhead Protection Areas Exposed Aquifer 17727 1 6 Month I I I I � T7525_ 7' 7 J 7 , 7 . 1 Year ■ 5 Year 10Year I Buffer Zone I I T7"9TR PE SW - - Sections Boundary I Sections ' I 75ft 7 751M l Edmonds Boundary ArcSDE.GIS.PROPERTY_BUILDIN( ArcSDE.G IS.STREET_CE NTERLI N E! J I — <all other values> I Interstate 44;AW ' ` I %9 742 'TLL Principal Arterial Minor Arterial; Collector - Local Street Snohomish County Park QCi 74Z2 7 08 11q �' State Highways <all other values> ° 1 1:1,516 O Notes 0 126.30 252.6 Feet WGS_1984_Web-Mercator _Auxiliary -Sphere © City of Edmonds 188.1 This ma is a user generated static output from an Internet mapping site and is for 2,257 p � B p pp B reference only. Data layers that appear on this map may or may not be accurate, current, or otherwise reliable. THIS MAP IS NOT TO BE USED FOR DESIGN OR CONSTRUCTION Attachment C Altmann Oliver Associates, LLC AOA PO Box 578 Carnation, WA 98014 Office (425) 333-4535 Fax (425) 333-4509 JOHN J. ALTMANN, PRINCIPAL Ecologist, Project Manager Environmental Planning & Landscape Architecture Wetland Delineations, Stream Studies, Functional Analysis, Mitigation, Environmental Impact Assessments, Planning, Regulatory Analysis & Permitting, Wildlife Studies EXPERIENCE Mr. Altmann has 35 years of experience working in resource and environmental planning, project management, and field analysis. His main area of concentration is wetlands and streams and his experience includes: delineations; environmental assessments; impact statements; mitigation plans; natural resource inventories and sensitivity analyses; site planning; and wildlife habitat management studies in Washington, Oregon, Idaho, Alaska, California, Wyoming, New Jersey, New York, and Pennsylvania. REPRESENTATIVE PROJECTS Responsible for over 4,000 wetland and wildlife studies conducted in past 35 years, with most of these projects occurring in King, Snohomish, Skagit, Whatcom, Pierce, Thurston, Clark, Lewis, Kitsap, and Mason counties in Washington State. Most of these projects involved analysis of wetland and stream conditions in relation to some proposed construction activity that could potentially affect their functions and values. Many of the studies involved delineation only, whereas others required determination of wetland functions and values and wetland impact mitigation planning and other sensitive areas analyses. Project sizes ranged from under 1 acre to over 600 acres, with the wetlands on these properties being nearly as variable as their size. Wildlife studies include flora and fauna inventories, habitat impact assessments, and threatened and endangered species studies. Some of the projects representative of this experience are listed below. Shoreline Delineation & Habitat Assessment for private land owners on Lake Sammamish, Bellevue, WA Wetland Mitigation and Long -Term Monitoring for Weyerhaeuser Real Estate Development Company's Mint Farm Phase II project in the City of Longview, WA Stream Delineation Study, Mitigation Plan for the Greystone PRD, Redmond, WA Wetland Delineation and Study for the Group Health Support Facility in the City of Tukwila, WA Critical Areas Delineation, Study, and Mitigation Plan for the Cadman High Rock Quarry in Snohomish County, WA Critical Areas Delineations, Studies, and Mitigation Plans for the Microsoft Corporate Campus in the City of Redmond, WA Critical Areas Study, Mitigation Plan, Biological Assessment, and Long -Term Monitoring on 90-acre Northpointe Corporate Campus for OPUS NW in Snohomish County, WA Wetland Delineation, Study, and Mitigation Plan for the Puyallup Downs Residential Development in the City of Puyallup, WA Wildlife Study on 40-acre Site in North Bend Area of King County, WA for Private Developer Critical Areas Delineation and Study for Data 1/0 Corporation in Redmond, WA for the Quadrant Corporation Sensitive Areas Assessment for 74-acre Church site in Redmond, King County, WA Wetland Delineation on 47-acre Marine Industrial Site Location in Snohomish River Estuary, Everett, Snohomish County, WA for Private Developer Wetland Study and Mitigation Plan for 37-acre Office Park Site in Redmond, King County, WA for Private Developer Wetland Maintenance and Monitoring Plan for Property on Raging River in King County, WA for Private Developer OTHER PROJECT EXPERIENCE Wetland Biologist for the King County Parks, Planning and Resource Department, Environmental Division, Resource Planning Section. Mapped, classified, inventoried and rated the wetlands in the cities of Kirkland, Bothell, Normandy Park, Duvall, and Lake Forest Park for inclusion in the King County Sensitive Areas Folio. Research Assistant for the NJ Division of Fish, Game and Wildlife's Endangered and Nongame Species Program. Responsible for the research, feeding, and monitoring of osprey fledglings for 3 seasons of the NJ osprey hacking program. Responsible for the collection and analysis of information pertaining to population size and migration along with species density and behavior of shorebirds along the Delaware Bay. Research Assistant for the NJ Division of Fish, Game and Wildlife. Responsible for the collection, processing and analysis of biological information pertaining to the whitetail deer population in NJ. EDUCATION B.S., Natural Resource Management, Wildlife Science Option, Rutgers University, Cook College, New Brunswick, NJ. PROFESSIONAL MEMBERSHIPS Society of Wetland Scientists The Wildlife Society