3632 RUCKER AVE THE LANDING AT PORT GARDNER 2023-04-06

CITY OF EVERETT STORMWATER MANAGEMENT MANUAL c. Minimum of 8-inch overlap at seams d. On long or wide slopes, or slopes subject to wind, all seams should be taped e. Place plastic into a small (12-inch wide by 6-inch deep) slot trench at the top of the slope and backfill with soil to keep water from flowing underneath f. Place sand filled burlap or geotextile bags every 3 to 6 feet along seams and pound a wooden stake through each to hold them in place g. Inspect plastic for rips,tears, and open seams regularly and repair immediately. This prevents high velocity runoff from contacting bare soil which causes extreme erosion h. Sandbags may be lowered into place tied to ropes. However,all sandbags must be staked in place. Maintenance Standards 1. Torn sheets must be replaced and open seams repaired 2. If the plastic begins to deteriorate due to ultraviolet radiation, it must be completely removed and replaced 3. When the plastic is no longer needed, it shall be completely removed. 3.2.11 BMP C124: Sodding Purpose The purpose of sodding is to establish permanent turf for immediate erosion protection and to stabilize drainage ways where concentrated overland flow will occur. Conditions of Use Sodding may be used in the following areas: • Disturbed areas that require short-term or long-term cover • Disturbed areas that require immediate vegetative cover • All waterways that require vegetative lining. Waterways may also be seeded rather than sodded, and protected with a net or blanket. Design and Installation Specifications Sod shall be free of weeds, of uniform thickness(approximately 1-inch thick),and shall have a dense root mat for mechanical strength. The following steps are recommended for sod installation: 1. Shape and smooth the surface to final grade in accordance with the approved grading plan. The swale needs to be over-excavated 4 to 6 inches below design elevation to allow room for placing soil amendment and sod. 2. Amend 4 inches(minimum) of compost into the top 8 inches of the soil if the organic content of the soil is less than 10 percent or the permeability is less than 0.6 inches per hour. Compost used should meet Ecology publication 94-038 specifications for Grade A quality compost. 3. Fertilize according to the supplier's recommendations. 4. Work lime and fertilizer 1 to 2 inches into the soil, and smooth the surface. Volume Il—Construction Stormwater Pollution Prevention 3-19 You created this PDF from an application that is not licensed to print to novaPDF printer(http://www.novapdf.com)