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7.1.N. - Page 14 <br /> Exhibit B <br /> Bioretention Areal Maintenance Plan for <br /> BDC Phase III Expansion <br /> May 18, 2015 <br /> pp <br /> - in i '% Project Address and Cross Streets <br /> i • , - 740 Bay Road / Woodside Rd. <br /> Assessor's Parcel No.: 054 -062 -130 <br /> `' ';, P roperty Owner: <br /> Phone No.: <br /> Designated Contact: <br /> ;' - Phone No.: <br /> Bioretention areas function as soil and plant - <br /> based filtration devices that remove pollutants Mailing Address: <br /> through a variety of physical, biological, and <br /> chemical treatment processes. These facilities <br /> normally consist of a grass buffer strip, sand bed, <br /> ponding area, organic layer or mulch layer, <br /> planting soil, and plants. <br /> The property contains one (1) bioretention area(s), located as described below and as <br /> shown in the attached site plane. <br /> • Bioretention Area No. 1 is located at north of the yard adjacent to the northeast entry of the <br /> building <br /> I. Routine Maintenance Activities <br /> The principal maintenance objective is to prevent sediment buildup and clogging, which <br /> reduces pollutant removal efficiency and may lead to bioretention area failure. Routine <br /> maintenance activities, and the frequency at which they will be conducted, are shown in <br /> Table 1. <br /> Table 1 <br /> Routine Maintenance Activities for Bioretention Areas <br /> No. Maintenance Task Frequency of Task <br /> 1 Remove obstructions, debris and trash from bioretention Monthly, or as needed after storm <br /> area and dispose of properly. events <br /> 2 Inspect bioretention area to ensure that it drains between Monthly, or as needed after storm <br /> storms and within five days after rainfall. events <br /> 3 Inspect inlets for channels, soil exposure or other Monthly, or as needed after storm <br /> evidence of erosion. Clear obstructions and remove events <br /> sediment. <br /> 4 Remove and replace all dead and diseased vegetation. Twice a year <br /> 5 Maintain vegetation and the irrigation system. Prune and Before wet season begins, or as <br /> weed to keep bioretention area neat and orderly in needed <br /> appearance. <br /> Bioretention areas include linear treatment measures designed to filter water through biotreatment soils. A bioretention <br /> area that has no waterproof liner beneath it and has a raised underdrain in the underlying rock layer to promote <br /> infiltration, as shown in Section 6.1 of the C.3 Technical Guidance, may also be called a "bioinfiltration area ". <br /> z Attached site plan must match the site plan exhibit to Maintenance Agreement. <br /> Page 1 Revised 11/30/11 <br /> X P 6140'4 PEIt U1S S APPLICATIONS Simcnata STMMA biceetwfim \1livtaanK(AppmdnC)dcc <br /> ATTY /AGR.2015.123 /740 Bay Road <br />