| (1) Sampling from stockpiles. One third of the grab
samples shall be taken from the base of the stockpile (at least 12
inches into the pile at ground level), one third from the exposed
surface, and one third from a depth of two feet from the exposed surface
of the stockpile.
(2) Sampling from conveyors. Sampling times shall be
selected randomly at frequencies that provide the same number of subsamples
per volume of finished product as is required in subsection (d) of
this section.
(A) If samples are taken from a conveyor belt, the
belt shall be stopped at that time. Sampling shall be done along the
entire width and depth of the belt.
(B) If samples are taken as the material falls from
the end of a conveyor, the conveyor does not need to be stopped. Free-falling
samples need to be taken to minimize the bias created as larger particles
segregate or heavier particles sink to the bottom as the belt moves.
In order to minimize sampling bias, the sample container shall be
moved in the shape of a "D" under the falling product to be sampled.
The flat portion of the "D" shall be perpendicular to the beltline.
The circular portion of the "D" shall be accomplished to return the
sampling container to the starting point in a manner so that no product
to be sampled is included.
(h) Analytical Requirements. Final product subject
to the sampling requirements of this section will be tested for all
of the following parameters. The executive director may at any time
request that additional parameters be tested. These parameters are
intended to address public health and environmental protection.
(1) Total metals to include:
(A) Arsenic;
(B) Cadmium;
(C) Chromium;
(D) Copper;
(E) Lead;
(F) Mercury;
(G) Molybdenum;
(H) Nickel;
(I) Selenium; and
(J) Zinc.
(2) Maturity/Stability by reduction in organic matter
on an interim basis and by approved method of maturity/stability analysis
after the completion of the maturity/stability method protocol as
described in subsections (b) and (d) of this section.
(3) Weight percent of foreign matter, dry weight basis.
(4) pH by the saturated media extract method.
(5) Salinity by the saturated media extract electrical
conductivity method.
(6) Pathogens:
(A) salmonella; and
(B) fecal coliform.
(7) Polychlorinated-biphenyls (PCBs)--required only
for permitted facilities.
(i) Data Precision and Accuracy. Analytical data quality
shall be established by EPA standard laboratory practices to ensure
precision and accuracy.
(j) Reporting Requirements.
(1) Facilities requiring registration must report the
following information to the executive director on a semiannual basis
for each sampling batch of final product. Facilities requiring a permit
must report similarly but on a monthly basis. Reports must include,
but may not be limited to, all of the following information:
(A) batch numbers identifying the final product sampling
batch;
(B) the quantities, types, and sources of feedstocks
received and the dates received;
(C) the quantity of final product and final product
standard code assigned;
(D) the final product grade or permit number of the
disposal facility receiving the final product if it is not Grade 1
or Grade 2 Compost as established in §332.72 of this title (relating
to Final Product Grades);
(E) all analytical results used to characterize the
final product including laboratory quality assurance/quality control
data and chain-of-custody documentation; and
(F) the date of sampling.
(2) Reports must be submitted to the executive director
within two months after the reporting period ends.
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