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Old 04-11-2013, 12:59 PM
Kiril Kiril is offline
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Join Date: Jun 2007
Location: District 9 CA
Posts: 18,316
Code, at least in CA, requires 6 inch drop over the first 10 feet from the building (5% slope). If hardscape, or any other impervious surface, falls within that 10 foot zone the minimum slope is 2%. In general the lot should be graded to slope away from the foundation/building, and I believe the general rule of thumb is a 2-3% slope outside the 10 foot zone.
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