Laserfiche WebLink
number of such systems, the number of houses to be served (if applicable), or the <br /> number of animals or humans the system(s) are expected to serve. <br /> No waste material discharge is proposed to groundwater. Runoff from pollution <br /> generating surfaces will be treated by a proprietary water quality treatment system <br /> prior to infiltration. <br /> c. Water runoff (including stormwater): <br /> 1) Describe the source of runoff(including storm water) and method of collection <br /> and disposal, if any (include quantities, if known). Where will this water flow? <br /> Will this water flow into other waters? If so, describe. <br /> On-site stormwater runoff will be collected by catch basins and conveyed to a <br /> proprietary water quality treatment system prior to infiltration. Stormwater runoff <br /> from new roof area will be detained in an underground chamber system prior to <br /> release through a control structure to the existing municipal system. <br /> 2) Could waste materials enter ground or surface waters? If so, generally describe. <br /> Waste materials are not anticipated to enter ground or surface waters as a part of this <br /> project. <br /> 3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If <br /> so, describe. <br /> Runoff from the site currently drains untreated and undetained to the existing <br /> municipal system in Evergreen Way. The proposed project will treat and infiltrate on- <br /> site runoff and detain new roof runoff to match or reduce peak flows and duration. <br /> Stormwater that is not infiltrated will ultimately drain to the same municipal system <br /> downstream of the project. <br /> d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage <br /> pattern impacts, if any: <br /> 4. Plants 'help] <br /> a. Check the types of vegetation found on the site: <br /> X_ deciduous tree: alder, maple, aspen, other <br /> X evergreen tree: fir, cedar, pine, other <br /> X shrubs <br /> X grass <br /> pasture <br /> crop or grain <br /> Orchards, vineyards or other permanent crops. <br /> wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other <br /> water plants: water lily, eelgrass, milfoil, other <br /> SEPA Environmental checklist(WAC 197-11-960) July 2016 Page 5 of 13 <br />