Laserfiche WebLink
CITY OF SANTA ANA <br />Planning and Building Agency <br />NOTES: <br />TRENCH <br />PERFORATED ' PIP E� <br />NON -PERFORATE <br />OUTLET PIPE <br />OUTLET PIPE DETAIL <br />NOT TO SCALE <br />1. FILTER MATERIAL SHOULD CONFORM <br />TO ASTM C-33-81, PARAGRAPH 4.1 <br />(CONCRETE FINE AGGREGATE). <br />ALTERNATIVELY, 3/4" GRAVEL <br />COMPLETELY SURROUNDED IN <br />APPROVED FILTER FABRIC MAY BE <br />USED IN LIEU OF CONCRETE SAND. <br />2. PERFORATED DRAIN PIPE TO HAVE <br />A MINIMUM DRAINAGE GRADIENT OF <br />1.0 PERCENT. <br />3. UPGRADIENT END OF OF SUBDRAIN <br />PIPE SHALL BE CAPPED. <br />4. SUBDRAIN PIPE SHOULD BE <br />CONNECTED TO A BURIED <br />UNPERFORATED PIPE LEADING TO A <br />WATER COLLECTOR UNPERFORATED <br />PIPE SHALL HAVE A MINIMUM <br />DRAINAGE GRADIENT OF 2.0 PERCENT. <br />5. LOCATION AND DETAILS OF <br />SUBSURFACE DRAIN INSTALLATION ARE <br />SUBJECT TO REVISION BY THE SOIL <br />ENGINEER IN THE FIELD DURING <br />CONSTRUCTION. <br />