Orange County NC Website
'' e <br />• <br />Ultra Shallow Trench Conventional Syatetns ara placed is areas wish 24 iachea or mare of provisionally suitable characurisd~ <br />inch soil cap is placed ovar the trenches. <br />Shallow ?rencla Conve~aal Syateema are placed, in areas with 30 ia~chos or morn of provisionally sui~bk cl>aractaristics. <br />Coaventlaaal Systems are pkeed, is arias with 36 items or mme of provisiaAally atutable Wis. <br />,; <br /> <br />