7007 SEAWAY BLVD 2016-01-01 MF Import

The Watershed CompanST � 16 September 1998 . Lennie Rae Cooke Snohomish County Airport 33220 - 100th Street SW Everett, WA 98204-1390 . FAX (425) 355-9£�83 - one page Re: Nar6eck Soil T .ct R S �� Dear Lennie Rae: ' We received the complete test results for the topsoil to be used at the Narbeck Wetland Mitigation area. Please find attached the data from Soiltest Farm Consuitants, Inc. The data indicate relatively low nitrogen and potassium levels for the soil. Bear in mind that this laboratory is geared to analyzing agricultural � soil. The recommendations for fertilizer application are for optimum crop yield. Native plant communities, especially wetland ones, are adapted to much lower nutrient levels, compared to agricultural crops. Fertilizer applications were not included in the plans. We feel that fertilizer application is neither necessary nor desirable for this project. The organic matter is noted at 5.6 percent which is normal for native upland soils in this area. This is to be expected as this material was taken from an upland area forested with native trees and shrubs. Organic content in wetland soils ranges widely but is usually higher, depending on ' , the type of wetiand. As wetiand soils are generally not available (especially weed-free wetland soil), native upland soils are the next best substitute. The vegetation removed from the excavated portions of the project was chipped into a coarse mulcii. Some of this chipped material - will be added to the top layer of soil as called for in the construction 1410�larket Street• P.O. Box 1180 • Kirkland • WA 98033-09t8 •Phone(425)822-524: • F�z(125)827-g136