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Maximum Applied Water Allowance. '~^ ° ° *'~° °~~^~°~* ~ ^r.,,^*°r *'~° ~ "^,~~;,,,~ ~~'~~^'~'~~
<br />~a°a.
<br />(B) Each hydrozone shall have plant materials with similar water use, with the exception of hydrozones
<br />with plants of mixed water use, as specified in Section 492.7(a)(2)(D).
<br />~C) At least 7~% of the toYalnu~mber trf plants in~nonaurf~rea~ ~tta11 require occasional, litfile ~~t i~ct
<br />summer water. All species should be adapted to the clim~ite in-which they will be planted, as
<br />documented by a published plant reference. if plants are given a range of water needs from "occasional
<br />to moderate" for example, the landscape designer must determine if the plant will require either
<br />occasional or moderate watering based on site, soil, and climate conditions and categorize the plant
<br />appropriately. Sources used to determine climate adaptation and watering requirements may include:
<br />1. Bornstein, Carol, David Fross and Bart O'Brien, California Native Plants for the Garden.
<br />Qualifying irrigation designation: "occasional", "infrequent", or "drought tolerant"
<br />2. East Bay Municipal Utility District's publication Plants and Landscapes for Summer Dry Climates.
<br />Qualifying irrigation designation: "occasional", "infrequent" or "no summer water"
<br />3. Sunset .Publishing Corporation Sunset Western Garden Book.
<br />Qualifying irrigation designation: "little or no water"
<br />~. Universit}~ of California Cooperative Extension's Guide to Estimating Irrigation Water Needs of
<br />Landscape Plantings in CA.
<br />Qualifying irrigation desigp,ation: "Low'" or "V~ir;~ LrrW"
<br />(D) Turf is not allowed on slopes greater than 25% where the toe of the slope is adjacent to an
<br />impermeable hadscape and where 25% means 1 foot of vertical elevation change for every 4 feet of
<br />horizontal length (rise divided by run x 100 =slope percent).
<br />(E) Total irrigated areas speciC-edas turf shall be limited tq a maximum of 25°1 with recreational areas
<br />exempted.
<br />(€~ (F) A landscape design plan for projects in fire-prone areas shall address fire safety and prevention.
<br />A defensible space or zone around a building or structure is required per Public Resources Code Section
<br />4291 (a) and (b). Avoid fire-prone plant materials and highly flammable mulches.
<br />f~} (G~ m~° , ^~;,,.,,,,,;.,° „~,~i^,. ., ..i„~~ ., ° ,.~,.^r„i., a:,,,,^,,,..,,.°a. Those species
<br />identified by CAL-IPC as invasive in the San ~Francise6 $ay Area sal nat~be ~pecipied.
<br />{~} (H) The architectural guidelines of a common interest development, which include community
<br />apartment projects, condominiums, planned developments, and stock cooperatives, shall not prohibit or
<br />include conditions that have the effect of prohibiting the use of low-water use plants as a group.
<br />(~} ~~ Plants shall be selected and planted appropriately based upon their adaptability to the climatic,
<br />geologic, and topographical conditions of the project site. To encourage the efficient use of water
<br />other reSatli'ees, the following is highly recommended:
<br />1. protection and preservation of native species and natural vegetation;
<br />z.
<br />~~. selection of plants based on disease and pest resistance;
<br />4: 3 selection of trees based on applicable local tree ordinances or tree shading guidelines; and
<br />~. 4. selection of California r~ti've plants from local and regional landscape program plant lists using
<br />local natural plant communities as models:
<br />~. 5. use of the Sunset Western Climate Zone System which takes into account temperature, humidity,
<br />elevation, terrain, latitude, and varying degrees of continental and marine influence on local climate;
<br />~. C, recognize the horticultural attributes of plants (i.e., mature plant size, invasive surface roots) to
<br />minimize damage to property or infrastructure [e.g., buildings, sidewalks, power lines]; ~o.allow the_fc
<br />grow to their mature size within the space ai]©tted them to avoid shearing and topping and
<br />7. consider the solar orientation for plant placement to maximize summer shade and winter solar gain.
<br />S. avoid specifying turf in street medians, traffic islands or bulbc~uts:of any size unless irrigated.-with
<br />subsurface or low volume irrigation
<br />9. avoid installingt~trfon stapes exceeding I0:1 ~(htir;~ontai-to ~ei'tic~l) or l 0°/~
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