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<br />. <br /> <br />. <br /> <br />. <br /> <br />~. , <br /> <br />(4) <br /> <br />(5) <br /> <br />(6) <br /> <br />(7) <br /> <br />in the event the storm drain capacity is exceeded or is reduced <br />due to blockage. <br />"J ditches" shall be installed as determined necessary by the <br />City Engineer: these shall generally be located at the locations <br />shown at the rear property lines of Lots 1-5 and above the <br />rear property lines of Lots 6-10, Additional "J-ditches" shall <br />be installed as recommended by the project's geotechnical <br />report and/or the City Engineer, typically to minimize surface <br />flows from descending more than 30 feet uninterrupted over <br />reconstructed cut or fill slopes. "J.ditches" shall be designed <br />to have no ditch running vertically downslope. Sub-surface <br />drains, coupled with overload releases to open space swales, <br />shall be used where "J-ditches" cannot feasibly end at streets. <br />Erosion control measures, including replacement of topsoil on <br />cut/fill slopes. artificial erosion control (mats and other fabric <br />matting, etc.), and hydroseeding appropriate for the future <br />landscape plan. shall be used to minimize the "J-ditches" <br />required. <br />Lot 19 shall have its house set back from the Vineyard trail <br />sufficiently to not require reconstruction of the slope bank <br />along this lot-trail boundary. <br />All open space area graded slopes shall undulate and vary in <br />slope and contour so as to appear natural. <br />The grading scheme just southerly of Lot 6 shall be modified <br />to grade cross-slope to daylight near the existing swale, <br />minimizing the 460-foot to 450-foot northerly trending <br />graded slope shown in the exhibit. <br /> <br />d. Landscape Plan <br />The proposed landscape plan shall be modified as follows: <br /> <br />(I) <br /> <br />(2) <br /> <br />(3) <br /> <br />The number of trees along the Vineyard trail shall be <br />substantially reduced, instead planting several clusters of <br />native oaks; final plans shall be a part of the Vineyard Trail <br />landscape plan and installed by others. <br />The final grading plan shall strive to save those oak trees <br />along the Vineyard trail which are located at the toe of slope; <br />an arborist's recommendation should be sought given the <br />final grading plan configuration. <br />The number of native trees at the fence line of Lots 1-5 and <br />alongside the eastern edge of "A" Street opposite Lots 12-16 <br />shall be increased in order to create a more informal, <br />undulating edge condition. The number of 36-inch box size <br />trees shall be increased to a minimum of two per lot frontage. <br /> <br />Conditions of Approval, PUD-5. Centex Homes' Apperson Ridge <br />Page 7 <br /> <br />JuneS. 2001 <br />