Admin Order 58-09-07-F - Laserfiche WebLink

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quality function rating system of the pre -proposal conditions by reducing the water quality management area from a rating of "5" to a "4." Refer to the Water Quality Function Rating Table. e) Measures proposed to mitigate the adjustment impact are shown on Site Plan II and are applied to the "Pollutant Filtration, Erosion Prevention, Shading" function where 30% of the remaining setback area will be enhanced to include a multi -layered vegetation condition. In addition, the applicant proposes to replant with native species where 150% credit is given in accordance with the administrative rule. With this credit, the rating for this function was increased to 5. 2.3 Water Quality Function Rating Table. The following table documents the individual and overall water quality function conditions under pre -proposal (total score 12), post -proposal without mitigation (total score 9), and post -proposal with mitigation conditions (total score 12). Water Qua ity Function Rating Table Pre -Proposal Post -Proposal Post -Proposal Net Change Water Quality Points without with Mitigation from Pre - Function. (1-5) Mitigation Points Proposal to Points (1-5) Post -Proposal (1-5) Points Water Quality 5 4 4 -1 Management Area Pollutant Filtration, 2 2 5* +3 Erosion Prevention, (includes native Shading*plant bonus I eambed and 5 5 5 0 Streambank Stability Total 12 11 14 +2 As shown in the table above and reflected on Site Plan II, it is hereby certified that the water quality function rating under post -proposal conditions with mitigation measures will be equal to or greater than the pre -proposal conditions and, in this case, post conditions will be greater than pre -conditions. (signature, date, and stamp of certified preparer)