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I <br /> Recommended Operational BMPs: <br /> . When selecting utility poles for a specific location,consider the potential environmental effects <br /> of the pole or poles during storage,handling, and end-use,as well as its cost, safety,efficacy, <br /> and expected life. Use wood products treated with chemical preservatives made in accord- <br /> ance with generally accepted industry standards such as the American Wood Preservers <br /> Association Standards(see http://www.awpa.com/standards/). Consider alternative mater- <br /> ials or technologies if placing poles in or near an environmentally sensitive area,such as a wet- <br /> land or a drinking water well.Alternative technologies include poles constructed with material <br /> (s)other than wood such as fiberglass composites, metal,or concrete. Consider other tech- <br /> nologies and materials, such as sleeves or caissons for wood poles,when they are determ- <br /> ined to be practicable and available. <br /> I <br /> . As soon as practicable remove all litter from wire cutting/replacing operations. <br /> . Implement temporary erosion and sediment control in areas cleared of trees and vegetationI <br /> and during the construction of new roads. <br /> S416 BMPs for Maintenance of Roadside Ditches <br /> Description of Pollutant Sources: Common road debris including eroded soil,oils,vegetative <br /> particles, and heavy metals can be sources of stormwater pollutants. I <br /> Pollutant Control Approach: Maintain roadside ditches to preserve the condition and capacity for <br /> which they were originally constructed, and to minimize bare or thinly vegetated ground surfaces. <br /> Maintenance practices should provide for erosion and sediment control(see S411 BMPs for Land- <br /> scaping and Lawn/Vegetation Management). <br /> Additional Regulations: Note that work in wet areas may be regulated by local, state, or federal <br /> regulations that impose additional obligations on the responsible party. Check with the appropriate <br /> authorities prior to beginning work in those areas. <br /> Applicable Operational BMPs: <br /> . Inspect roadside ditches regularly to identify sediment accumulations and localized erosion. <br /> . Clean ditches on a regular basis,as needed. Keep ditches free of rubbish and debris. <br /> . Vegetation in ditches often prevents erosion and cleanses runoff waters. Remove vegetation <br /> only when flow is blocked or excess sediments have accumulated. Conduct ditch main- <br /> tenance(seeding,fertilizer application, harvesting)in late spring and/or early fall,where pos- <br /> sible.This allows re-establishment of vegetative cover by the next wet season thereby <br /> minimizing erosion of the ditch as well as making the ditch effective as a biofilter. <br /> . Do not apply fertilizer unless needed to maintain vegetative growth. I <br /> . In the area between the edge of the pavement and the bottom of the ditch,commonly known <br /> as the"bare earth zone,"use grass vegetation,wherever possible. Establish vegetation from <br /> the edge of the pavement, if possible,or at least from the top of the slope of the ditch. <br /> . Maintain diversion ditches on top of cut slopes constructed to prevent slope erosion by <br /> 2019 Stormwater Management Manual for Western Washington <br /> Volume IV-Chapter 3-Page 515 <br />