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Table 11-4.2.1 Runoff Conveyance and Treatment BMPs by SWPPP <br /> Element (continued) <br /> Ele- Element Ele- Element Ele- <br /> ment #4 Ele- ment #8 Stab- Elementment Element <br /> BMP or Ele- #3 Install ment #7 Pro- ilize #9 Con- #10 #13 Protect <br /> ment Name Con- Sed- #6 Pro- tect Chan- trol Pol- Control Low Impact <br /> trot iment tect Drain nets lutants De- Devel- <br /> Flow Con- Slopes Inlets and Out- Water- opment <br /> Rates trots lets ing <br /> Vegetative <br /> Filtration <br /> (p.379) <br /> BMP C240: <br /> Sediment ✓ ✓ <br /> Trap (p.383) _ <br /> BMP C241: <br /> Temporary <br /> Sediment ✓ ✓ <br /> Pond <br /> (p.388) <br /> BMP C250: <br /> Con- <br /> struction <br /> Stormwater ✓ ✓ <br /> Chemical <br /> Treatment <br /> (p.396) <br /> BMP C251: <br /> Con- <br /> struction ✓ <br /> Stormwater <br /> Filtration <br /> (p.404) <br /> BMP C252: <br /> High pH <br /> Neut- ✓ <br /> ralization <br /> Using CO2 <br /> (p.409) <br /> BMP C253: ✓ <br /> pH Control <br /> 2014 Stormwater Management Manual for Western Washington <br /> Volume 11- Chapter 4 -Page 330 <br />