DEQ-CFW_00083914

TestAmerica
THE LEADER IN EN %(F.CtNNIENT L TEST:KG
Fluorochernical Characterizationof Water Sample
Analytical Results i
Chemours Sample
TestAmerica
Collection
Date Sample
Analysis Date
HFPO-DA#
Identification
Sample
Date/Time
Received by
(ug/L**)
Identification
TestAmerica
GW0817-LTW-01
280-99947-1
8/3/2017
8/5/2017
8/14/2017
32
15:30
GW0817-LTW-01-D
280-99947-2
8/3/2017
8/5/2017
8/14/2017
32
15:30
8/3/2017
GW0817-LTW-04
280-99947-3
9: 36
8/5/2017
8/14/2017
19
8/3/2017
GW0817-SMW-09
280-99947-4
8/5/2017
8/14/2017
21
18:40
GW0817-MW-1 S
280-99947-5
8/3/2017
8/5/2017
8/14/2017
15
12:36
8/3/2017
GW0817-SMW-11
280-99947-6
17:05
8/5/2017
8/14/2017
4.6
8/3/2017
TB-0817-3
280-99947-7
8/5/2017
8/14/2017
<0.010
8:00
EB-0817-3
280-99947-8
8/4/2017
8/5/2017
8/14/2017
<0.010
8:00
8/4/2017
TB-0817-4
280-99947-9
8:00
8/5/2017
8/14/2017
<0.010
8/4/2017
GW0817-SMW-10
280-99947-10
8/5/2017
8/14/2017
<0.010
8: 57
GW0817-SMW-05P
280-99947-11
8/4/2017
8/5/2017
8/14/2017
22
11:04
8/4/2017
GW0817-06B
280-99947-12
13:10
8/5/2017
8/14/2017
41
# HFPO-DA — hexafluoropropylene oxide dieter acid, analyzed by method DV-LC-0012, Revision 14.
< = less than the stated value
** ug/L — micrograms/liter (parts per billion)
*** The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample
concentration was greater than four times the spike amounts.
DEFINITIONS:
Reporting Limit (RL) for the procedure is approximately 0.010 ug/L.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the
average value is reported. If the RPD is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is
reported. If the absolute difference is greater than the RL, the higher value is reported.
Acce-
TestAmerica Sample ID Matrix Spike Recoveries
SUBMITTED
Michelle A. Johnston, Project Manager Date
4955 Yarrow Street Arvada; CO 80002 Page 9 of 13J41 303.736.0100 www'testa Medea€n ,com
DEQ-CFW 00083914

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017 &
GW0817-LTW-01
280-99947-1
8/3/2017 15:30
8/5/2017
8/25/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
0.0041
<0.0020
<0.0020
0.060
0.014
0.032
0.0042
0.085
0.030
<0.0020
<0.0020
0.0021
PFPeA
0.29
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
1 < = less than the stated value
0
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
1 Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083915

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083916

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11 /2017 &
GW0817-LTW-01-D
280-99947-2
8/3/2017 15:30
8/5/2017
8/25/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
0.0041
<0.0020
<0.0020
0.060
0.014
0.031
0.0037
0.084
0.031
<0.0020
<0.0020
<0.0020
PFPeA
0.29
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
1 < = less than the stated value
ry
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
1 Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083917

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083918

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11 /2017, 8/21 /2017
GW0817-LTW-04
280-99947-3
8/3/2017 9:36
8/5/2017
& 8/25/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
0.076
<0.0020
0.042
<0.0020
0.0065
<0.0020
<0.0020
<0.0020
<0.0020
PFPeA
1.5
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
1 < = less than the stated value
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
1 Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083919

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083920

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017 &
GW0817-SMW-09
280-99947-4
8/3/2017 18:40
8/5/2017
8/25/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
0.0035
<0.0020
<0.0020
0.072
0.017
0.10
<0.0020
0.057
<0.0020
<0.0020
<0.0020
<0.0020
PFPeA
0.30
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
1 < = less than the stated value
rn
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
1 Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083921

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083922

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017 &
GW0817-MW-1S
280-99947-5
8/3/2017 12:36
8/5/2017
8/25/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
0.0063
<0.0020
0.062
0.0033
0.026
0.031
0.089
0.011
<0.0020
<0.0020
0.0047
PFPeA
0.28
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
1 < = less than the stated value
co
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
1 Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083923

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
I
DEQ-CFW-00083924

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017 &
GW0817-SMW-11
280-99947-6
8/3/2017 17:05
8/5/2017
8/26/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
0.012
<0.0020
0.0093
<0.0020
0.036
<0.0020
<0.0020
<0.0020
<0.0020
PFPeA
0.039
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
o < = less than the stated value
0 N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083925

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083926

TestAmerica
THE LEADER IN EN %(PCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
TestAmerica
Analysis Date
TB-0817-3
280-99947-7
8/3/2017 8:00
8/5/2017
8/11/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
0.0026
<0.0020
<0.0020
<0.002a
PFPeA
<0.0020
Definitions:
RL — Reporting Limit
All units in ug/L — micrograms/liter (parts per billion)
< = less than the stated value
N N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
o N-methyl Perfluorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
w Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
* The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140°/®)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] .te tameri in rr€
DEQ-CFW 00083927

TestAmerica
THE LEADER IN ENtfRONMENTA TEST:-,,,G.
(69-134%)
58%-
97%—
SUBMITTED Y:
8/30i2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW 00083928

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017 &
EB-0817-3
280-99947-8
8/4/2017 8:00
8/5/2017
8/26/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
PFPeA
<0.0020
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
ry < = less than the stated value
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083929

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083930

TestAmerica
THE LEADER IN EN %(PCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
TestAmerica
Analysis Date
TB-0817-4
280-99947-9
8/4/2017 8:00
8/5/2017
8/11/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
0.0028
<0.0020
<0.0020
<0.002a
PFPeA
<0.0020
Definitions:
RL — Reporting Limit
All units in ug/L — micrograms/liter (parts per billion)
< = less than the stated value
rn N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
o N-methyl Perfluorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
w Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
* The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140°/®)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] .te tameri in rr€
DEQ-CFW 00083931

TestAmerica
THE LEADER IN ENtfRONMENTA TEST:-,,,G.
(69-134%)
58%-
97%—
SUBMITTED Y:
8/30i2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW 00083932

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017 &
GW0817-SMW-10
280-99947-10
8/4/2017 8:57
8/5/2017
8/26/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
<0.0020
PFPeA
<0.0020
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
rQ < = less than the stated value
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083933

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
I
DEQ-CFW-00083934

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017, 8/21/2017
GW0817-SMW-05P
280-99947-11
8/4/2017 11:04
8/5/2017
& 8/26/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
0.0062
<0.0020
<0.0020
0.11
0.0077
0.077
0.0030
3.4
0.0042
<0.0020
<0.0020
<0.0020
PFPeA
0.27
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
w < = less than the stated value
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083935

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083936

TestAmerica
THE LEADER IN EN %rPCtNMENT L TEST:KG
Chemours Sample Identification
TestAmerica Sample Identification
Collection Date/Time
Date Sample Received by
Analysis Date
TestAmerica
8/11/2017, 8/21/2017
GW0817-06B
280-99947-12
8/4/2017 13:10
8/5/2017
& 8/26/2017
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
<0.020
<0.020
<0.0020
<0.0020
<0.0020
0.21
0.0022
0.11
0.0026
3.1
0.0041
<0.0020
<0.0020
<0.0020
PFPeA
2.4
-0 Definitions:
m RL — Reporting Limit
cD All units in ug/L — micrograms/liter (parts per billion)
w < = less than the stated value
® N-ethyl Perfluorooctane sulfonamidoacetic acid (NEtFOSAA)
N-methyl Per luorooctane sulfonamidoacetic acid (NMeFOSAA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanoic acid (PFHpA)
Definitions:
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluorotetradecanoic acid (PFTeA)
Perfluorotridecanoic Acid (PFTriA)
Perfluoroundecanoic acid (PFUnA)
Perfluoropentanoic acid (PFPeA)
The MS spike compound recoveries and surrogate recoveries could not be reliably calculated because the sample concentration was greater than four
times the spike amounts.
RESULTS ARE CALCULATED ACCORDING TO THE FOLLOWING CRITERIA:
For samples analyzed in duplicate:
If the sample and laboratory duplicate are greater than 5X RL, the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD
is greater than 20, the higher value is reported.
If the sample or laboratory duplicate are less than 5X RL, and the absolute difference is less than RL, the average value is reported. If the absolute difference
is greater than the RL, the higher value is reported.
NEtFOSAA
NMeFOSAA
PFBS
PFDA
PFDoA
PFHpA
PFHxS
PFHxA
PFNA
PFOA
PFOS
PFTeA
PFTriA
PFUnA
(60-140%)
(60-140°/®)
147%)
141 %)
139%)
135%)
138%)
136%)
140%)
141 %)
162%)
130%)
139%)
139%)
103%
104%
116%
95%
93%
102%
96%
88%
99%
85%
107%
97%
113%
87%
103%
108%
113%
92%
90%
97%
99%
103%
95%
103%
115%
97%
104%
90%
4955 farrow Street Arvada, CO 80002 tel [phone] vv ""Aestameri aincxom
DEQ-CFW 00083937

T t rica
THE LEADER IN ENVRONMENTAL TEST:-,,,G.
PFPeA
(69-134%)
58%-
97%—
SUBMITTED BY:
8/30/2017
Michelle A. Johnston, Project Manager Date
DEQ-CFW-00083938