6406-COMPOST-2014_foreign_material-FY16-17

A. R. Rubin and Associates
Sustainable Environmental Solutions
192 Fearrington Post
Pittsboro, NC, 27312

Memo from: A. R. Rubin
Subject: Foreign matter assessment of Carolina Recycled Ag Materials (CRAM) compost
To: Kyle Bass 20 July 2017
A composite Sample of the screened compost was received on 20 July, 2017. The single sample analyzed
as required in the CRAM compost system permit to determine the level of foreign matter (plastic,
aluminum can fragments, metal fragments, glass, paper products, cigarette filter fragments, etc.). The
sample was collected from the mature compost storage piles at the permitted facility by representatives
from CRAM and sent by UPS Ground to me.
The sample was assessed visually and no foreign matter was observed. Then the sample was screened
through 10-mesh screen followed by visual assessment of the fractions collected on the screen and of
the compost fines collected beneath the screen. The solid materials collected on the screen were
examined visually. The solid materials passing the screen were examined visually using a lighted 50
power dissecting microscope. No observable inert materials were detected either atop the screen or in
the bin collecting the fine compost screenings.
Based on these observations, the level of inert solids reported in the screened material is less than 0.5%.
Continued assessment of the compost will be necessary to comply with conditions imposed through
NCDWM in the compost system permit.
Respectfully Submitted;