CD 
O 
c 
CD 
i— 
0 
s= 
c 
0 
o 
l_ 
0 
CL 
0 
> 
JD 
0 
Q 
CL 
QC 
co 
CD 
O 
CL 
c 
0 
E 
TJ 
0 
0 
£ 
0 
3 
0 
0 
i_ 
0 
O 
c 
0 c 
d.2 
8 .g 
a CD 
>% > 
0 ° 
-I 
< 4 — 
o .2 
0 o 
E o 
CO 
> 
o 
RPDs and CVs 
of matrix spikes 
and reference 
materials <30%? 
No non-zero 
replicates 
No (49%) 
Yes 
Recovery of 
matrix spikes 
within 50%- 
120%? 
Yes 
Yes 
Yes 
70% of 
analytes 
within ±35% 
of true 
value? 
Yes 
No 
No 
%of 
analytes 
within ±35% 
of true value 
100% 
00 
CO 
67% 
Average % 
deviation 
from 
reference 
material 
within ±30% 
of true value 
Yes 
No 
No 
Average % 
deviation from 
true value of 
reference 
material 
(# Analytes) 
15% (14) 
146% (21) 
32% (18) 
State 
California 
Oregon 
Washington 
■o 
0 
0 
o 
o 
-C 
o 
II 
O 
CL 
QC 
0 
0 
-g 5 
g 0 
0 0 
Q. N 
"O 0 
0 _Q 
0 2 
.2 o 
1 ^ 
■f= 03 
o X 
i— 0 
0 _C 
£ M 
° CD 
cO 
0 x 
0 . 
I— c 
Q .2 
Q 0 
0 > 
3 ° 
8 g 
— 0) c 
0 O 
=5 CD O) 
cr ^ 0 
o §-6 
>>-G 0 
I ■5 5 
= 0 <= 
o 
c 
CO 0 0 
• 0 o 5 
^ y= 2 
E 
0 
0 
RPDs and CVs 
of matrix spikes 
and reference 
materials <30%? 
No non-zero 
replicates 
Yes 
Yes 
Recovery of 
matrix spikes 
within 50%- 
120%? 
Yes (19 
analytes) 
Yes 
Yes 
70% of 
analytes 
within ±35% 
of true 
value? 
Yes (only 2 
analytes) 
No 
Yes 
%of 
analytes 
within ±35% 
of true value 
100% 
50% 
100% 
Average % 
deviation 
from 
reference 
material 
within ±30% 
of true value 
Yes (only 2 
analytes) 
No 
Yes 
Average % 
deviation from 
true value of 
reference 
material 
(# Analytes) 
13% (2) 
127% (8) 
57% (w/o HCB) 
24% (7) 
State 
California 
Oregon 
Washington 
^r 
vo 
