2020-057-E Planning - Wellsmont Landscaping spillway mulching

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DocuSign Envelope ID:AEB4824B-973E-408D-9C1C-5EDDD8B50786 Provisions for soils test during and/or after initial grading is complete shall be i ncl uded on the approved pl an, i n the approved constructi on sequence,and on the bid item list utilized for the project. 1j'you did not obtain a soil test: Follow these recommendations for all grasses except centipedegrass. .Apply pounds of ground I i mestone per , sq.ft. 2.Apply a starter type fertilizer(one that is high in phosphorus)based on the type of grass and pl anti ng method. Ferti I i zer bags have a three number system indicating the primary nutrients, such as 8-8-8 or 5-10-10. These numbers denote the N P ratio the percentage of each nutrient in a fertilizer. The percentages are al ways noted i n the fol I owi ng order: N Nitrogen for green color and growth. P O Phosphorus for good establ i shment and rooti ng. O Potassium to enhance pest and environmental stress tolerance. Some common examples of starter type fertilizers required for a 1,000 sq. ft. area include 40 pounds of 5-10-10, 20 pounds of 10-20-20, or 16 pounds of 18-24-6. For sandy soils, typical to coastal plain and sandhills of North Carolina,ferti I izer rates shout d be increased by percent. here avai I abl e, it is recommended that the design professional specify organic compounds that meet the ferti I i zati on requirements, pH and other element requirements. Initial studies have indicated that these compounds have a more positive effect on the environment than some of the synthetic compounds used to manufacture inorganic fertilizers. These materials are readi I y avai I abl e i n the commerci al trade as wel I as found i n recycl ed yard waste debri s, sewerage sl udge, I i me stabi I i zed sl udge and ani mat manures. Materials proposed for use must be industry certified and/or privately tested and certified to be acceptable for proposed areas of use and application prior to approval. MULCHES AND TACKING AGENTS ul ches and tacki ng agents may be requi red or necessary to protect a seedbed s disturbed surface until the seed can germinate and provide the required protecti on f rom erosi on. Sel ecti on of the mated al s used i n thi s appl i cati on shoul d be based on thei r abi I i ty to hol d moi sture i n the soi 1, as wel I as protect exposed soil from rainfall, storm water runoff, and wind. The availability of the set ected mated al and the means to apply it are cri ti cal factors to consi der when pl anni ng for the stabi I i zati on of any di sturbed area. The mul ch must cover a minimum of eighty(80)percent of the soil surface and must be secured by a tacki ng agent,cri mpi ng,or protecti ve bi odegradabl a netti ng. Netti ng that incorporates plastic mesh and/or plastic twine should not be used in wetlands, riparian buffers or floodplains due to the potential of small animal mortality. See Section 6.14 for detailed specifications and product applications. SOIL BLANKETS Soi I bl ankets can be an acceptabl a and effective method of temporary sedi ment and erosion control in lieu of nurse crops. See Section 6.17 of the manual for descri pti ons of thi s product and how i t can be used i n conj uncti on with thi s section. I n absence of mul ches and tracki ng agents other means of protection may be necessary and required. 6.11.6 Rev.5/08