Burial vault system and method

A burial system comprising:

• a lid member and a base member;
• said lid member further including a monolithically formed inner lid layer and an outer lid layer forming a bounded cavity therebetween and a lid lip section having a lid lip profile;
• a castable material in said lid within said inner lid layer and outer lid layer and binding therewith forming a monolithic lid;
• said lid member having a cross-sectional shape in arc form and having a first lid total hight;
• said inner lid layer and said outer lid layer being formed of one of a polyethylene and a polypropylene;
• said base member including a monolithically formed inner wall layer and an outer wall layer forming a bounded cavity therebetween and a base lip section having a base lip profile;
• said cast material in said base member within said inner way layer and said outer wall layer;
• said base member having a cross-sectional U-shape form and having a first base total height;
• said lid lip profile having a female receiving shape;
• said base lip profile having a male extending shape complementary to said lid lip profile, wherein upon assembly aid lid lip profile and said base lip profile interfit in a sealing manner;
• and
• said inner wall layer of said base member further including a plurality of finger members proximate said base lip profile, whereby said finger members enable an enhanced formation of said base member.