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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />U] <br />1 <br />1 <br />1 <br />demonstrating compliance with permit conditions. <br />Maintenance Standards <br />Inspect the spray nozzles daily, at a minimum, for leaks and plugging from sed- <br />iment particles. <br />. If erosion, concentrated flows, or over saturation of the field occurs, rotate the use <br />of branches or spray heads or move the branches to a new field location. <br />• Check all branches and the manifold for unintended leaks. <br />Flowpath Guidelines for Vegetative Filtration <br />Average Slope <br />Average Area % Slope <br />Estimated Flowpath Length (ft) <br />1.5H :1 V <br />67% <br />250 <br />2H:1 V <br />50% <br />200 <br />4H:1 V <br />25% <br />150 <br />6H:1 V <br />16.7% <br />115 <br />10H:1 V <br />10% <br />100 <br />2014 Stormwater Management Manual for Western Washington <br />Volume 11 - Chapter 4 - Page 381 <br />