

river rock– Southside Class ii Permeable
Southside Class II Permeable is a permeable material used for drainage applications and conforms to the specifications of Cal Trans section 68. Contact a sales representative for details.

Sieve Analysis
INCHES	MM / UM	SOUTHSIDE GRADING	CAL TRANS SECTION 68
1"	25 mm	100	100
3/4"	19 mm	92	90 – 100
1/2"	12.5 mm	67
3/8"	9.5 mm	53	40 – 100
#4	4.75 mm	34	25 – 40
#8	2.36 mm	25	18 – 33
#30	600 um	13	5 – 15
#50	300 um	6	0 – 7
#100	75 um	1	0 – 3