United States
Environmental Protection
Agency     	
Environmental Monitoring
and Support Laboratory
Cincinnati OH 45268
Research and Development
EPA/600/S4-88/005  Apr. 1988
Project Summary

Screening of Semivolatile
Organic  Compounds for
Extractability and Aqueous
Stability by SW-846
Method  3510

T. M. Engel, R. A. Kornfeld, J. S. Warner, and K. D. Andrews
  As part of an ongoing effort in a
hierarchical scheme to demonstrate
the applicability of present U.S. EPA
analysis methods and/or to develop
new methodology, the suitability of
SW-846  Method  3510  for the
determination of hazardous, organic
compounds was evaluated. The
compounds selected for this study
included all semivolatile organic
compounds on  the borderline
chemicals list, proposed Appendix IX
list, Appendix VIII, and Michigan lists
that were not priority pollutants and
were shown to  be amenable to gas
chromatographic-mass  spectro-
metric  (GC-MS)  analysis.  After
eliminating 13 compounds  for
various reasons,  the extraction
efficiency from  water and seven-day
aqueous  stability of the remaining
153 compounds were determined.
  Spiking mixtures were designed to
eliminate  coelutions and  avoid
compound interactions. Spiked
distilled water samples and blanks
were extracted  using Method 3510
procedures except that a  two stage
liquid-liquid equilibration procedure
(one equilibration with  300  mL
methylene chloride  under acid
conditions and  another equilibration
with  300  mL methylene  chloride
under basic  conditions)  was
substituted for  the six 60-mL
equilibrations specified in SW-846
Method 3510.  The concentrated
 extracts were analyzed by  fused
 silica capillary column  gas
 chromatography with flame ionization
 detection (GC-FID). Two  separate
 GC-FID systems were used, one for
 acid/neutral  mixtures and the other
 for base/neutral mixtures.
   On the  basis of  extraction
 efficiency and seven-day aqueous
 stability  results obtained at the 500
 ng/L concentration level, 115 of the
 153  compounds  evaluated in this
 study are suitable for inclusion in the
 scope of SW-846 Method  3510 and
 in Method 8270 validation studies.
 Changes were recommended to the
 list of compounds to be included in
 Appendix IX as a result of this work.
    This  Project Summary was
 developed by EPA's  Environmental
 Monitoring and Supmort Laboratory,
 Cincinnati,  OH,  to Announce  key
 findings of the research project that is
 fully documented in a separate report
 of the same title (see Project Report
 ordering information at back).

 Introduction
   The Resource  Conservation and
 Recovery Act (RCRA) requires operators
 of land-based hazardous waste facilities
 to  analyze ground  water  for
 approximately  375  hazardous
 constituents listed in Appendix VIII to 40
 CFR  Part 261. While some  of  the
 constituents are analytes included  in EPA
 combined  gas chromatographic-mass

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spectrometric  (GC-MS)  screening
procedures (Method 8240 for  purgeable
compounds  and  Method  8270 for
semivolatile compounds), experience has
shown that analysis is extremely difficult
or impossible for  many of  the  other
constituents.
  Another  list  of  compounds,  the
Michigan list, was generated in response
to a petition by the State of Michigan to
expand Appendix VIII. EPA has proposed
an amendment of Appendix VIII by the
addition of over 100 Michigan list organic
compounds  (Federal  Register,
December 21, 1984).
  A  1984 RCRA amendment requires
EPA to take final action on all permits for
land-disposal facilities by  November,
1988. To facilitate meeting this deadline,
EPA prepared a revised list representing
EPA's  current  guidance  on which
Appendix VIII and Superfund  hazardous
substances  constituents  might
realistically be determined by  routine
GC-MS screening procedures.  As  a
result  of this meeting, two lists of
compounds  to  be considered in the
current work  assignment were proposed
for  testing  groundwater  for  permit
applications, Appendix IX, and a second,
smaller list  of  borderline  chemicals,
compounds for which  EPA has received
conflicting data with regard  to analytical
feasibility (Federal Register, July 24,
1986).
  In 1985 Battelle began experiments
aimed  at  establishing  a hierarchical
approach  to the  development  and
validation of  analytical methods for the
determination of  organic compounds in
wastes. The  first  experiments,  Work
Assignment  1-04 of this  contract,
assessed  the  GC-MS suitability of
RCRA  Appendix  VIII  and  Michigan  list
compounds. From these data,  a third list
of compounds to be  considered in the
current work assignment was identified,
those  semivolatile compounds  from
Appendix VIII and the Michigan list that
were   found  suitable  for  GC-MS
determination but were not included in
the  proposed Appendix IX list or the
borderline chemicals list.
  The  objectives  of  this   work
assignment, 2-08, were 1) to assess the
suitability of SW-846 Method 3510 for
liquid-liquid  extraction of  semivolatile
compounds that  are  on  the  proposed
Appendix  IX  list,  the  borderline
chemicals list,  or list of  compounds
found suitable for GC-MS determination
in Work Assignment  1-04,  but  are  not
priority pollutants and 2) to recommend
which of these compounds to  include on
Appendix IX.
Experimental Approach

   The  compounds  included  in the
original scope of Work Assignment 2-08
for  Method 3510  performance testing
were all compounds,  other than priority
pollutants, in Appendix VIII, the proposed
Appendix IX,  the list  of  borderline
chemicals, and  the Michigan  list that had
been  determined in Work Assignment
1-04  to be   amenable  to GC-MS
analysis or expected to be amenable to
GC-MS  analysis. After eliminating re-
dundancies  and   eliminating  13
compounds for the  reasons given  in
Table 1, 153  compounds remained for
inclusion in the  final scope of  Work
Assignment 2-08.
   Stock solutions of  each  compound
were prepared  containing the compound
at 2000 ng/mL These stock solutions
were  combined  to  form 20  spiking
mixtures, 100 ng/mL solutions, designed
with the following considerations:
•  Up to 15 compounds were included in
   each spiking mixture. This number of
   mixture  components  improved
   experimental efficiency by decreasing
   the number  of required equilibrations,
   but did not  result  in  extremely
   complicated  GC-FID chromato-
   grams.
•  The  compounds  included in  each
   mixture were selected to eliminate
   coelutions  between compounds as
   well as between a compound and the
   internal standard.
'•  Acidic compounds, basic compounds,
   and  organophosphate esters  were
   segregated  to   avoid   chemical
   interactions.
•  Neutral  compounds other  than
   organophosphate esters   were
   assigned to mixes  containing  acids,
   bases, or organophosphate esters in a
   manner  to  avoid  compound
   coelutions.
   For each spiking mixture, triplicate 1-
liter aliquots   of  distilled  water  were
spiked  with 5 ml of the  mixture. A
method blank,  consisting of  one liter of
distilled water,  was  processed each day
to detect interferences. The spiked water
samples and  method blanks  were
extracted according  to Method  3510
except that during extraction under both
basic and acidic conditions one 300-mL
aliquot of methylene  chloride was used
instead  of three  60-mL  aliquots.
Compounds   were  equilibrated by
tumbling end-over-end for one hour in
each extraction  phase. This  single
exhaustive extraction with a  larger
volume of  solvent  provides  equivalent
compound recoveries  with reduced
laboratory effort. The methylene chlorii
extracts obtained at acidic and basic f
were combined, concentrated  to  5  IT
spiked  with 250 pg of internal  standa
(phenanthrene-DIO), and  analyzed  I
GC-FID.
  Two instruments, one for acidic/neuti
mixtures and one for  basic/neutr
mixtures,  were  used  to reduce  tl
possibility  of  compound  interactions
the injector or on the analytical columr
Both instruments  were  operated usii
the gas chromatographic  operatii
conditions  specified  in SW-846  Methi
8270 and employed a 30-meter x 0.,
mm  I.D.  SPB-5  bonded-phas
silicone-coated fused  silica  capilla
column (0.25 iim film thickness) followi
by  flame  ionization  detection.  Und
these gas  chromatographic operatii
conditions, dibenzo(a,e)-pyrene did n
elute from the column.
  Calibration standards,  containii
compounds at three concentration lew
representing  100, 30, and  10%  recove
and the appropriate  internal standard
the  50 ng/mL  concentration level, we
prepared for each spiking mixture.  T
three calibration standards  were analyzi
before  and  after each  set  of wat
extracts. Recoveries of  each compou
from water  were calculated  from t
GC-FID data generated from  wat
extracts compared to the  correspondi
data from the calibration standards.
  Aqueous stability experiments we
conducted using spiked distilled wal
samples that  were prepared in triplicz
as  described above,  stored  in  1
bottles  at  approximately 4°C  and  pi
tected   from   light  for  7  days,  a
processed as detailed above. The samt
bottles  were thoroughly rinsed with  t
methylene chloride used  for the init
extraction  of the sample to  minimi
compound losses due to adsorption
the walls of the bottle.
Results and Discussion

Evaluation of SW-846 Method
3510 Suitability.
   An average recovery within the ran
of 70 to 130 percent was considered
indicator  of  SW-846  Method 35
suitability. Recoveries were  within  tl
range for 131 of the 153 compounds  T
22  remaining  compounds  display!
average  recoveries of less  than
percent are listed in Table 2.
   Comments indicating possible reasc
why compound recoveries were lov
than 70% are included in  Table 2.  L

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"ecoveries for  nine of the compounds
:an  be  at  least  partially attributed  to
unfavorable distribution coefficients
(indicated by comment DC);  compounds
with  suspected unfavorable  distribution
coefficients are  2,4-diaminoanisole
sulfate,  2,4-diaminotoluene, ethyl car-
bamate, isosafrole,  malononitrile, 1,2-
phenylenediamine,  1,3-phenylenedia-
mine, resorcinol, and thioacetamide. Low
recoveries of most of the compounds
can  be  partially or totally attributed  to
oxidation or hydrolysis during extraction
(indicated  by comments  OE  and HE,
respectively).
   Compound aqueous stability, defined
as the recovery obtained  Day  7 relative
to that obtained on Day 0, of greater than
70%  was  considered  acceptable.
Acceptable aqueous  stabilities  were
observed for 133 of the 153 compounds.
The  remaining 20 compounds,  those
displaying  greater than  30 percent loss
after storage for seven days,  are listed in
Table 3. Four of these compounds,
benzenethiol,  4,4'-methylenebis(2-
chloroaniline),  pentachloroethane, and
phthalic anhydride,  also  displayed
unacceptable recoveries on  Day 0 (see
Table 3).  Possible  explanations  for
compound losses  are given in the
comments column of Table 3.  In most
cases, these compounds are  expected to
hydrolyze or oxidize during storage.
   A compound's  suitability for  semi-
volatile analysis depends on  its ability to
be  adequately  stored, extracted, and
analyzed. Table 4 lists compounds that
produce both  stability  and  Day  0
recovery values greater than  70%. While
all 115  chemicals exhibited acceptable
behavior,  13  compounds  had  poor
reproducibility.  Five  compounds,
1,2:7,8-dibenzacridine,  3,3'-dimeth-
oxybenzidine,  p-dimethylaminoazo-
benzene, methyl  parathion, and 4,4'-
oxydianiline, had BSD values of greater
than 15  percent for recoveries on Day 0
and/or  Day 7. Poor recovery  repro-
ducibility may  result  in a high method
detection limit. Ten compounds, carbo-
phenothion,  1,2:7,8-dibenzacridine,
dichlorovos, 3,3'-dimethoxybenzidine,
fenthion,  4,4'-methylenebis  (N,N-
dimethylaniline), N-nitrosopyrrolidine,
1,4-phenylenediamine,  and sulfallate,
had RSD values greater than 15 percent
for GC-FID response factors from the
highest  level calibration  standard (100
iig/mL).  This factor becomes important in
calculations of instrument and  method
ranges.  These compounds  may  prove
not  to  be suitable  for semivolatile
analysis when  validation studies are
performed.
Changes to Appendix IX
   Fifty-four compounds  on   the
originally  proposed  Appendix  IX list
should  be included  on the  revised
version of  this list. Table 5A lists the 12
analytes from Appendix IX that were not
judged suitable  for  Method  3510
extraction. Two  of  these compounds,
malononitrile  and  pentachloroethane,
have  been shown  to  be suitable for
further  investigation  under  volatile
analyte methodology and should not be
excluded  from  Appendix  IX  without
volatiles testing.
   Recommended additions to Appendix
IX come from the borderline chemicals
and  Appendix  VIII  lists.  Only  3
compounds,  diallate,  3-methylphenol,
and o-toluidine, that  did not also appear
on the proposed  list should be added to
Appendix  IX from  the borderline
chemicals   list.  Additionally,   10
compounds   from  Appendix  VIII  not
included  on  proposed  Appendix  IX
should now be added.  The  compounds
recommended to be  added from the
borderline  chemicals and Appendix VIII
lists appear in Table 56.

Conclusions and
Recommendations
   The following  conclusions  can  be
drawn from study results using  analytes
spiked  into  water at the 500  ng/L
concentration  level:
•  Method 3510  provides acceptable
   extraction efficiency for 131 of the 153
   compounds evaluated.
•  Of the 153  compounds, 133 are stable
   in water for one week when protected
   from light and refrigerated.
•  Hydrolysis, oxidation, adsorption, and/
   or poor  chromatographic performance
   prevent acceptable  extraction ef-
   ficiency  or  acceptable aqueous
   stability for the remaining  compounds
   studied.
•  On the  basis  of extraction efficiency
   and 7-day aqueous  stability results,
   115 of the  153 compounds evaluated
   in this study are suitable for inclusion
   in  the  scope  of  SW-846  Method
   3510. These compounds derive  from
   the following sources:
Proposed Appendix IX chemicals        54
Borderline chemicals                14
Michigan list chemicals               48
Appendix VIII chemicals not           10
included on Appendix IX
Total citings                     126
Dual Appendix IX/Borderline           11_
chemical citings
Total compounds found suitable      115
   Based  on Work  Assignment  2-08
results, it is recommended that the 115
compounds  with  demonstrated
acceptable  extraction efficiency  and  7-
day aqueous stability should be included
in  future  validation  studies of SW-846
Method 8270.  It would be valuable  to
conduct   preliminary   studies   at
concentrations less  than  500 ug/L  to
detect potential concentration - related
effects on compound  recoveries  and
stability.
   The following  are recommendations
for compounds  to be   included  in
Appendix IX:
•  Of  the  75 Appendix IX compounds
   studied,  10  should be  removed from
   the list.
•  Of the  14 compounds studied that are
   on  the  borderline list but not on the
   proposed  Appendix   IX list,  3
   chemicals should be added to the
   Appendix IX list.
•  Ten  of  the  22  Appendix   VIM
   compounds  studied that did  not
   appear  on the proposed  Appendix  IX
   list should be added to  the Appendix
   IX list.

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      Table 1.      Compounds Eliminated from
      No.               Compound
Method 3510 Performance Testing
              Reason
       1      1-Amino-2-methylanthraquinone
       2      Azinphos-ethyl
       3      Benzoic acid
       4      1,2:5,6-Dibenzacridine
       5      Dibenzo(a,e)pyrene
       6      Dibenzo(a,i)pyrene
       7      Dibenzo(a,h)pyrene
       8      2,4-Dichlorophenoxyacetic acid
       9      a,a-Dimethylphenethylamine
      10     Dioxathion
      11      1,2-Diphenylhydrazme
      12     Silvex
      13     2,4,5-Tnchloroohenoxvacetic acid
 Not available
 Not available
 Derivatization required
 Not available
 Excessively long elution time
 Not available
 Not available
 Derivatization required
 N,N-isomer inadvertently tested
 Standard on hand had decomposed
 Not stable in water
 Derivatization required
 Derivatization required	
Table 2.      Compounds with Average Recoveries Less Than 70 Percent on Day 0
                                                       Percent Recovery

                                                           on Day 0       Comments
No.                Compound                 List (a)      Avg      RSD       (b)
1
2
3
4
5
6
7
8
9
TO
11
12
13
14
15
16
17
18
19
20
21
22
Benzenethiol
p-Benzoquinone
2,4-Diaminoanisole sulfate
2,4-Diaminotoluene
Dichlone
Dimethoate
1 , 4 -Dinitrobenzene
Ethyl carbamate
Isosafrole
Maleic anhydride
Malononitrile
4,4 '-Methylenebis (2-chloroaniline)
Monocrotophos
Nicotine
Pentachloroethane
1,2-Phenylenediamine
1 , 3 -Phenylenediamine
Phosphamidon
Phthalic anhydride
Resorcinol
Thioacetamide
Trimethyl phosphate
98
98
M
M
M
8
9

98

98
9
M

9


M

98

M







8

8



8

S
8

8

8

33
0
60
42
0
31
14
28
46
0
09
33
26
67
64
32
19
63
0
10
01
60
29
0
08
07
0
06
27
02
05
0
11
19
05
22
02
11
20
09
0
05
82
03
CP, OE, OS
OE
AA, DC, OE
AA. DC, OE
OE
HE, HS
HE
DC
AA, DC
AA, HE
CP, DC
AA, OE, OS
AA, HE
OE
HE.HS
DC, OE
DC, OE
AA, HE
HE
DC, OE
DC
HE
(a)  9 = Proposed Appendix IX to Part 264 as published in the Federal Register, 51, No.  142,
         July 24,  1986, pp. 26639-26642.
    B = Borderline chemicals considered for additions to proposed Appendix IX to part 264
         and published in the Federal Register, 51, No. 142, July 24, 1986, p. 26637.
    M = Michigan list of chemicals proposed to  be added to Appendix VIII to Part 261  and
         published in the Federal Register, 49, No. 247, December 21,  1984, p. 49793.
    8 = Appendix VIII to Part 261 as revised and published in the Federal Register, 51, No.
         247, August 6,  1986, pp. 28305-28310. Compounds so designated are not present
         on proposed Appendix IX, borderline chemicals, or Michigan lists.
(b)  Comments:
   AA = The internal standard coeluted with  a mixture component/interference in  both the
         samples and the calibration standards;  compound recovery was calculated on the
         basis  of average absolute  area of the compound in  the  100 ng/mL  calibration
         standard.
   CP = Nonreproducible  chromatographic performance.
   DC = Unfavorable distribution coefficient,
   HE = Hydrolysis during extraction accelerated by acidic or basic conditions.
   HS = Hydrolysis during storage.
   OE= Oxidation during extraction accelerated by basic conditions.
   OS = Oxidation during storage.

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Table 3. Compounds with Aqueous Stability Less Than
No. Compound List (a)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Aramite (Isomers 1 and 2) 9
Azinphos-methyl M
Benzenethiol 9 B
Captafol M
Captan M
Demeton-0 M
Diethylstilbestrol 8
Dihydrosafrole 8
7, i2-Dimethylbenz(a)anthracene 9
Dinocap M
Hexachlorophene 9
Malathion M
4,4'-Methylenebis(2-chloroaniline) 9
Mexacarbate M
1 -Naphthylamine 9
Pentachloroethane 9
Phosmet M
Phthalic anhydride 8
Strychnine 8
Toluene dusocyanate 8
70 Percent
% Stab (b)
54,52
62
(c)
55
40
68
67
10
45
28
62
5
0
68
44
4
15
67
55
6
Comments (b)
HS
HS
CP, OE, OS
AA.HS
AA,HS
AA, HS
AW, OS
HS
CP
CP,HS
AW,CP
HS
AA, OE, OS
HE, HS, RA
OS
HE, HS
HS
AA, CP, HE, HS
AW, OS
AA, HE
(a)  9 = Proposed Appendix IX to Part 264 as published in the Federal Register, 51, No.
        142. July 24, 1986, pp. 26639-26642.
    B = Borderline chemicals considered for additions to proposed Appendix IX to pan
        264 and published in the Federal Register, 51, No. 142, My 24,  1986, p. 26637.
    M = Michigan list of chemicals proposed to be added to Appendix VIII to Part 261
        and published in the Federal Register, 49,  No.  247, December 21,  1984,  p.
        49793.
    8 = Appendix VIII to Part 261 as revised and published in the Federal Register,  51,
        No. 247, August 6, 1986, pp. 28305-28310. Compounds so designated are  not
        present on proposed Appendix IX, borderline chemicals, or Michigan lists.
(b)  % Stab = Avg Recovery (Day 7) x 100/Avg Recovery (Day 0).
(c)  Compound not detected in Day 7  Sample extracts or calibration standards.
(d)  Comments:
   AA = The internal standard coeluted with a mixture component/interference in both  the
        samples and the  calibration standards; compound recovery was calculated on
        the basis  of  average  absolute  area of the compound in  the 100  ng/mL
        calibration standard.
   AW = Adsorption to walls of glassware during extraction and storage.
   CP = Nonreproducible chromatographic performance.
   HE = Hydrolysis during extraction accelerated by acidic or basic conditions.
   HS = Hydrolysis during storage.
   OE= Oxidation during extraction accelerated by basic conditions.
   OS = Oxidation during storage.
   RA= A sample analyte  was observed to coelute with the internal standard; compound
        quantification was calculated on  the basis of peak area relative to the average
        internal standard peak area from  the calibration standards.

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Table 4 Compounds Tentatively Recommended for Inclusion in SW-846 Method
3510(a)
RCRA
No. Compound CAS No. List (b)
No.
1
2
3
4
5
e
7
S
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Acetophenone
2-Acetylaminofluorene
2-Aminoanthraqumone
Aminoazobenzene
4-Aminobiphenyl
3-Amino-9-ethylcarbazole
Anilazine
Aniline
o-Anisidine
Benzyl alcohol
Bromoxynil
2-sec-Butyl-4, 6-dinitrophenol
Carbaryl
Carbofuran
Carbophenothion (d)
Chlorfenvinphos
4-Chloroaniline
Chlorobenzilate
5-Chloro-2-methylaniline
3-(Chloromethyl)pyridine hydrochloride
4-Chloro- 1 ,2-phenylenediamine
4-Chloro-l ,3-phenylenediamine
Coumaphos
p-Cresidine
Crotoxyphos
2-Cyclohexyl-4, 6-dinitrophenol
Demeton-S
Diallate
Diazinon
1 ,2:7,8-Dibenzacridine (c,d)
Dibemofuran
1 ,2-Dibromo-3-chloropropane
2, 6-Dichlorophenol
Dichlorovos (d)
Dicrotophos
3,3'-Dimethoxybenzidine (c,d)
p-Dimethylammoazobenzene (c)
3,3-Dimethylbenzidine (d)
1 ,2-Dinitrobenzene
1 ,3-Dinitrobenzene
Diphenylamine
5, 5 -Diphenylhydantoin
Disulfoton
EPN
Ethion
Ethyl methanesulfonate
Ethyl parathion
Famphur
Fensulfothion
Fenthion(d)
98-86-2
53-96-3
1 17-79-3
60-09-3
92-67-1
132-32-1
101-05-3
62-53-3
90-04-0
100-5 1-6
1689-84-5
88-85-7
63-25-2
1563-66-2
786-19-6
470-90-6
106-47-8
501-15-6
95-79-4
6959-48-4
95-83-0
5131-60-2
56-72-4
120-71-8
7700-17-6
131-89-5
126-75-0
2303-16-4
333-41-5
224-42-0
132-64-9
96-12-8
87-65-0
62-73-7
141-66-2
1 19-90-4
60-1 1-7
1 19-93-7
528-29-0
99-65-0
122-39-4
57-41 -0
298-04-4
2104-64-5
563-12-2
62-50-0
56-38-2
52-85-7
1 15-90-2
55-38-9
U004
UOOS
U264
U257
U274
U253
U333

U260

U272

U279
U127
U148
P143


U329
U319
U306
U305
P130
U262
U238
P034

U062
U313




P144
P146
U091
U093
1/095





P141
P154
U119

P097
P156

9
9B
M
M
9
M
M
98
M
9
M
9B
M
M
M
M
9
9
M
M
M
M
M
M
M

M
B
M

9
9
9
M
M
9
9
p


98
M
9
M
M

9
9
M
M

























8



8








8
8





a




(Continued)

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Table
No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
4. (Continued).
Compound
Fluchloralin
Hexachloropropene
Hexomethyl phosphoramide
Isodrin
Kepone
Leptophos
Mestranol
Methapyrilene
Methoxychlor
3-Methylcholathrene
4,4'-Methylenebis (N,N-dimethylaniline) (d)
Methyl methanesulfonate
2-Methylnaphthalene
2-Methyl-5-nitroaniline
Methyl parathion(c)
2-Methylphenol
3-Methylphenol
4-Methylphenol
2-Methylpyridine
Mevinphos
Mirex
Naled
1 ,4-Naphthoquinone
2-Naphthylamme
5 -Nitroacenaphthene
2-Nitroaniline
3-Nitroaniline
4-Nitroaniline
5-Nitro-o-Anisidine
4-Nitrobiphenyl
Nitrofen
4-Nitroqumoline-l -oxide
N-Nitrosodi-n-butylamme
N-Nitrosodiethylamme
p-Nitrosodiethylamine
N-Nitrosomethylethylamine
N-Nitrosomorpholine
N-Nitrosopiperidine
N-Nitrosopyrrolidine(d)
4,4'-Oxydianiline(c)
PenUchlorobenzene
Pentachloronitrobenzene
Phenacetin
Phenobarbital
1 , 4 -Phenylenediamine(d)
Phorate
Piperonyl sulfoxide
Pronamide
CAS No.
33245-39-5
1888-71 -7
680-31 -9
465-73-6
743-50-0
2/609-90-5
72-33-3
97-80-5
72-43-5
56-49-5
101-61 -1
66-27-3
9r-57-6
99-55-8
298-00-0
95-48-7
J08-39-4
106-44-5
109-06-8
7786-34-7
2385-85-5
300-76-5
1 30-1 5-4
91-59-8
602-87-9
88-74-4
99-09-2
100-01-6
99-59-2
92-93-3
1836-75-5
56-57-5
924-16-3
55-18-5
1 56-10-5
10595-95-6
59-89-2
100-75-4
930-55-2
101-80-4
608-93-5
82-68-8
62-44-2
50-06-6
J06-50-3
298-02-2
120-62-7
23950-58-5
RCRA
NO.
U330
U243
U312
P060

P140
U301
U155

U157
U255


U181




U191
P131
1/297
U309
U166
U168
U250



U263
U275
U288



U287


U176

U303


U187
U268


U270



9

9
9


9
9
9

9
9
9
9
9

9
9



9
9

9
9
9




9
9

9
9
9
9

9
9
9


9

9
List (b)
M
B
M
B
B
M
M



M





B

B
M
M
M


M



M
M
M
8


M
B



M



M
8

M

(Continued)

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Table 4. (Continued).
No. Compound
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
Safrole
Sulfallate(d)
Terbufos
1 ,2,4,5-Tetrachlorobenzene
2,3,4, 6-Tetrachlorophenol
Tetrachlorvinphos
Tetraethyl dithiopyrophosphate
Tetraethyl pyrophosphate
Thionazine
o-Toluidine
2,4,5-Trichlorophenol
0,0,0-Triethyl phosphorothioate
Trifluralin
2,4,5-Trimethylaniline
1 ,3,5-Trinitrobenzene
Tri-p-tolyl phosphate
Tris-(2, 3-dibromopropyl) phosphate
CAS No.
94-59-7
95-06-7
13071-79-9
95-94-3
58-90-2
961 -1 1 -5
3689-24-5
1 07-49-3
297-97-2
95-53-4
95-95-4
126-68-1
1582-09-8
137-1 7-7
99-35-4
1330-78-5
126-72-7
RCRA
No.
U203
U277
P149


U308
P109

P040
U328


U332
U259
U234

U235
List (b)
9
M
M
9
9
M
9B
8
9
B M
9
8
M
M
8
M
9B
(a)  Based on a compound having demonstrated both extractability and aqueous stability
    values equal to or greater than 70%.
(b)  9 = Proposed Appendix IX to Part 264 as published in the Federal Register, 51, No.
        142, July 24, 1986, pp. 26639-26642.
    B = Borderline chemicals considered for additions  to proposed Appendix IX to part
        264 and published in the Federal Register, 51, No. 142, July 24, 1986, p. 26637.
    M = Michigan list of chemicals proposed to be added to Appendix VIII to Part 261 and
        published in the Federal Register, 49,  No. 247, December 21, 1984, p. 49793.
    8 = Appendix VIII to Part 261 as revised and published in the Federal Register, 51, No.
        247, August 6,  1986, pp. 28305-28310.  Compounds  so  designated  are  not
        present on proposed Appendix IX, borderline chemicals, or Michigan lists.
(c)  Compounds exhibiting  either Day  0 or Day  7 recoveries with relative standard
    deviations greater than 15 percent.
(d)  Compounds with calibration response  factors having  relative  standard deviations
    greater than 15 percent.

-------
Table
No.
5A
7
2
3
4
5
6
7
S
9
10
11
12
sa
1
2
3
4
5
6
7
S
9
10
11
12
13
5. Recommended Changes for Semivolatile Organic Compounds on
Proposed Appendix IX.
Substance List (a) CAS No.
Recommended Deletions
Aramite (Isomers 1 and 2)
Benzenethiol
p-Benzoquinone
7, i2-Dimethylbenz(a)anthracene
1 ,4-Dinitrobenzene
Hexachlorophene
Isosafrole
Malononitrile
4,4'-Methylenebis(2-Chloroaniline)
1 -Naphthylamine
Pentachloroethane
Resorcinol
Recommended Additions
2-Cyclohexyl-4, 6-dinitrophenol
Diallate
1,2:7,8 -Dibenzacridine(b, c)
1 ,2-Dinitrobenzene
1 ,3-Dinitrobenzene
Ethyl methanesulfonate
3-Methylphenol
4-Nitroquinoline-1 -oxide
1 ,4-Phenylenediamine(c)
Tetraethyl pyrophosphate
o-Toluidine
0,0,0-Triethyl phosphorothioate
1,3,5- Trinitrobenzene

9
9B
9B
9
9
9
98
98
9
9
9
98

S
8
S
S
S
S
8
S
S
S
8
8
8

140-57-8
108-98-5
106-51-4
57-97-6
100-25-4
70-30-4
120-58-1
109-77-3
101-14-4
134-32-7
76-01-7
108-46-3

1 31 -89-5
2303-16-4
224-42-0
528-29-0
99-65-0
62-50-0
108-39-4
56-57-5
106-50-3
107-49-3
95-53-4
126-68-1
99-35-4
(a)  9 = Proposed Appendix IX to Part 264 as published in the Federal Register,  51,
         No. 142, July 24,  1986, pp. 26639-26642.
    B = Borderline chemicals considered for additions to proposed Appendix IX to
         part 264 and published in the Federal Register, 51, No. 142, July 24, 1986, p.
         26637.
    8 = Appendix VIII to Part 261 as revised and published in the Federal Register,
         51, No. 247, August 6,  1986, pp. 28305-28310. Compounds so designated
         are not present on proposed Appendix IX, or borderline chemicals lists.
(b)  1,2:7,8-Dibenzacridine exhibits  a Day 0 recovery with relative  standard deviation
    greater than 15%.
(c)  Compounds with calibration response factors having relative standard deviations
    greater than 15%.
                                                         U. S. GOVERNMENT PRINTING OFFICE: 1938/548-158/67109

-------
  T. M. Engel, R.A. Kornfeld, J.S.  Warner, and K.D. Andrews are with Battelle
        Columbus Laboratories, Columbus, OH 43201-2693.
  James Longbottom is the EPA Project Officer (see below).
  The complete report,  entitled "Screening of Semivolatile Organic Compounds
        for Extractability and Aqueous Stability by SW-846 Method 3510," (Order
        No. PB 88  161 559/AS; Cost: $14.95,  subject to change) will be available
        ority from:
           National Technical Information Service
           5285 Port Royal Road
           Springfield, VA 22161
           Telephone:  703-487-4650
  The EPA Project Officer can be contacted at:
           Environmental Monitoring and Support Laboratory
           U.S. Environmental Protection Agency
           Cincinnati, OH 45268
United States
Environmental Protection
Agency
Center for Environmental Research
Information
Cincinnati OH 45268
     BULK RATE
POSTAGE & FEES PAID
         EPA
  PERMIT No. G-35
Official Business
Penalty for Private Use $300

EPA/600/S4-88/005
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          H6E«Ct

           60604

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