CSLB Landscaping (C-27) Trade

Under California's MWELO (23 CCR §493.2.2), overhead irrigation is not permitted within what distance of any non-permeable surface?

1. AWithin 12 inches
2. BWithin 36 inches
3. CWithin 18 inches
4. DWithin 24 inchesCorrecta

Por qué: Section 493.2.2(d)(10) provides that overhead irrigation shall not be permitted within 24 inches of any non-pervious surface. Drip or other low flow non-spray technology may be used inside that setback, and the setback may be planted or unplanted and surfaced with mulch, gravel, or other porous material. The requirement may be modified where no runoff occurs, where the adjacent hardscape drains entirely to landscaping, or where the designer demonstrates an alternative design preventing water waste. This is a setback from hardscape, not a limit on how narrow a planting area may be — the width rule is a separate provision at 10 feet.23 CCR §493.2.2(d)(10)

What does MWELO require of a project regarding soil before the planting plan is finalized?

1. AA geotechnical report establishing the bearing capacity of the subgrade
2. BA record of the last three crops or land uses on the parcel
3. CA soil management report with testing and amendment recommendationsCorrecta
4. DA certified laboratory analysis of the irrigation water source

Por qué: MWELO requires a soil management report so that amendment and mulching decisions are based on actual soil chemistry and texture rather than habit. Water quality analysis is useful but is not the required report. Bearing capacity belongs to structural design. Prior cropping history is not part of the ordinance.CA MWELO (Title 23)