DSHW-1999-004959 - 0901a06880156d59

DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF SOLID AND HAZARDOUS WASTE (j^\ ^
<A^.^ir ^^V » Michael 0. Leaviti
Governor
Dianne R. Nielson, Ph.D.
Executive Director
Dennis R. Downs
Direcior
288 North 1460 West
P.O. Box 144880
Salt Lake Cily, Utah 84114-4880
; [phone]
• [phone] Fax
• [phone] T.D.D.
www.deq.state.ut.us Web
^Vu^
December 30, 1999
Mr. Joe D. Thompson, Director
Environmental, Fire anci Security
Thiokol Corporation
P.O. Box 707
Brigham City, UT 84302-0707
RE: Class 3 Post-Closure Permit Modification #MOD99.03255
EPA I.D. #UTD009081357
Dear Mr. Thompson:
On August 10, 1999, Thiokol requested a modification to its Post-Closure Permit in order to
change two groundwater monitoring requirements. The requested modification included
omitting the requirement to sample for the constituents contained in List 3 of the Permit and to
collect one sample semi-annually from each compliance point well instead of four replicate
samples.
Thiokol conducted a public information meeting on the modification request on September 23,
1999 and a 60-day public comment period which began on August 18 and ended on October 17,
1999. After the 60-day public conmient period ended, the Division of Solid and Hazardous
Waste (the Division) prepared a draft permit modification and held a public hearing on
December 1, 1999. In addition, the Division conducted a 45-day public comment period which
began on October 29, and concluded on December 15, 1999. No comments were received from
the public during either comment period.
The requirement to analyze for the List 3 constituents once every three years no longer appears to
be necessary. Sample results from the years 1989, 1990, 1991, 1993 and 1996 appear to indicate
that there has not been a release of any of these constituents. In addition, it is unnecessary to
collect four samples each time the compliance wells are sampled since the statistical test that
required four replicate samples is no longer conducted or recommended. As was stated in your
letter of August 10, 1999, it appears that the resources expended complying with the monitoring
requirements discussed above could be better utilized by sampling other, downgradient wells.
December 30, 1999
Page 2
The Division is currently working on a Comprehensive Groundwater Monitoring Evaluation
(CME) for Thiokol. The purpose of the CME is to evaluate Thiokol's groundwater monitoring
program and to determine compliance with the Post-Closure Permit. It is anticipated that once
the CME is complete, some changes to the groundwater monitoring program, including sampling
other, downgradient wells, may be necessary.
With this letter, the Class 3 Permit Modification is hereby approved as it appears in the draft that
went out for public comment, and as agreed upon by staff members of the Division and Thiokol.
Enclosed with this letter are the revised pages of Module V, Attachment 7, and the Corrective
Action Addendum. Please replace the affected pages of the Post-Closure Permit with the
enclosed pages, and remove List 3 from Table E-2.1 (Attachment 7 and Corrective Action
Addendum).
If you have any questions regarding this letter, please contact Jeff Vandel at 538-9413.
Sincerely,
)ennis R. Downs, Executive Secretary
Utah Solid and Hazardous Waste Control Board
DRD\JCV\kg
c: John C. Bailey, M.D., M.S.P.H., HIth Officer/Dept.Director, Bear River District HIth Dept.
Mary Wu, USEPA Region 8, 999 18th Street, Suite #500, Denver, CO 80202-2466
f:\...\jvandel\wp\thiokol\pcmodl29.wpd
file to: Thiokol
Thiokol Corporation
PC Pennit
Final: Sept 1, 1992
Last Revision:
Oct. 22, 1999
V,B. 1 .c. The Permittee may apply for Alternate Concentration Limits (ACL). Each
petition must meet all the requirements of R315-8-6.
V.B.I.d. If submitted, the Executive Secretary shall determine, within 180 days, the
appropriateness of any ACL petition, and either accept, or reject, the
concentration level. If the Executive Secretary determines that the level is
appropriate, the Permittee and/or the Executive Secretary shall institute a
modification to the permit in accordance with Condition I.D.3.
V.B.l.e. Upon termination of the CAP outlined in Condition VI.A per R315-8-6.il. the
Permittee shall institute and maintain a detection monitoring program under
R315-8-6.9. and Condition V.E. of this permit.
V.B.2. The Permittee shall follow all of the elements of the required program as defined
in this Module.
V.C. GROUNDWATER PROTECTION STANDARD
V.C.I. The Permittee shaU monitor the groundwater, as specified in Condition V.A. to
determine whether the corrective action program outlined in Module VI of this
permit is effective in removing hazardous waste constituents from the
groundwater and to determine compliance with the groundwater protection
standard under R315-8-6.3.
V.C.2. The hazardous waste constituents listed on Table E-2 of Attachment 7 wiU
comprise the groundwater protection standard. Table E-2.1, List 1, hazardous
constituents shall represent the hazardous constituents which are sampled of all
compliance wells on a semi-annual basis. A minimum of one sample will be
extracted during this interval for each compliance well, per the sampling plan of
Attachment 4, for Table E-2.1, List 1, hazardous constituents.
V.C.2.a. Upon commencement of a CAP of Condition VI. A., all monitoring wells will be
sampled per the CAP and until the CAP ceases to be required for groundwater
corrective action.
V.C.2.b. Table E-2 of Attachment 7 identifies the approved concentration limits and
analytical methods of detection for hazardous constituents of Table E-2.1 of
Attachment 7.
Module V - page 4
Thiokol Corporation
PC Pennit
Final: SepL 1, 1992
Last Revision:
Oct 22, 1999
V.C.2.C. Table E-2.1, List 2 of Attachment 7 shall represent hazardous constituents which
are sampled in addition to the hazardous constituents of Table E-2.1, List 1 of
Attachment 7 on a armual basis upon issuance of this permit. One sample will be
extracted during this time interval for each compliance well.
V.C.2.d. If any hazardous constituents included on List 2 of Table E-2.1 are detected, then
Table E-2.1, List 1 shall be modified by the Executive Secretary to include those
constituents, unless the Perinitee can successfully document to the Executive
Secretary that the detected constituent of concern is not statistically valid.
V.C.2.e. If alternate concentration limits are approved per Condition V.B. I.e., the
Executive Secretary shall institute a permit modification in accordance with
Condition I.D.3. of this permit to-incorporate the approved alternate
concentrations Umits into the Groundwater Protection Standard.
V.C.3. Required SW-846 test methods and concentration limits are listed in Attachment
7. If an alternate test method is to be proposed for use, the Permittee must
submit an application for a permit modification as specified in Condition I.F.lS.b.
If at any time during the duration of this permit, the Executive Secretary
determines that the test methods specified in Table E-2 is not sensitive enough to
produce the required results, and the test method detection limits are lower than
the concentration limits of Attachment 7, the Executive Secretary shall require
the Permittee to use alternate test methods (e.g. 500 or 600 series test methods).
Ifthe Executive Secretary requires a change to the test method(s), the Executive
Secretary will modify the permit.
V.C.4. As indicated by R315-8-7, the post-closure care period for the M-136 is thirty
(30) years from the effective date of this permit. If the groundwater protection
standard in Condition V.C. above is exceeded after thirty (30) years the
Permittee must continue corrective action as specified in Condition VI.G.
Module V - page 5
RevisetJ:
October 22, 1999
ATTACHMENT SEVEN
CONSTITUENTS AND CONCENTRATIONS
TABLE E-1
Acetone
Ammonia
Arsenic
Barium
Benzene
Bromomethane
Chloroethane
Chloroform
Chromium
1,1-Dichloroethane
1,1-Dichloroethene
1,2-Dichloroethene
Manganese
Nitrate
Perchlorates
Sulfate
Tetrachloroethene
Tin
Total Dissolved Solids
1,1,1-Trichloroethane
Trichloroethene
AC t acliment: Cieven page-1
ATTACHMENT SEVEN GROUNDWATER PROTECTION STANDARD
TABLE E-2
Ground-Water Monitoring List
Common name CAS RN Chemical abstracts
service index name
Suggested
methods
Concentrat;
Limit
(ug/L)
Acenaphthene
Acenaphthylene
Acetone
Acetophenone
Ammonia
2-AcetYlaminof1
uorene; 2-AAF
83-32-9
208-96-
8
67-64-1
98-86-2
53-96-3
Acrolein 107-02-
Acenaphthylene,
1,2-dihydro-
Acenaphthylene
2-Propanone-
Ethanone, 1-phenyl-
Acetamide,
N-9H-fluoren-2-yl-
2-Propenal
8100
8100
8240
8270
8270
350.1
8270
8240
200
200
100
10
10
10
10
4-Aminobiphenyl
Aniline
Anthracene
Arsenic
Barium
Benzene
Benzo[a]anthrac
ene;
92-67-1
62-53-3
120-12-
7
(Total)
(Total)
71-43-2
56-55-3
[l,l'-Biphenyl] •
Benzenamine
Anthracene
Arsenic
Barium
Benzene
-4-amine
Benz[a]anthracene
8240
8270
8270
8100
6010
7060
7061
6010
7080
8020
8240
8100
8270
100
10
10
200
500
10
20
20
1,000
2
5
200
10
Benzanthracene
Benzo[b]fluoran 205-99-
thene 2
Benz[e]acephenanthrylene 8100 200
At taclinieni: Seven pane-2
Benzo[k]fluoran 207-08-
thene 9
Benzo[ghi]peryl 191-24-
ene 2
Benzo[a]pyrene 50-32-8
Benzyl alcohol 100-51-
6
Bis(2-chloroeth 111-91-
oxy)methane 1
Bis(2-chloroeth 111-44-
yl)ether 4
Bis(2-chloro-l- 108-60-
methylethyl) 1
ether; 2,2'-Di-
chlorodiisoprop
yl ether
Bis (2-ethylhe>cY 117-81-
1) phthalate 7
Bromodichlorome
thane
Bromofoiiii;
Tribromomethane
4-Bromophenyl
phenyl ether
Butyl benzyl
phthalate;
Benzyl butyl
phthalate
Cadmium
Carbon
disulfide
Carbon
tetrachloride
75-27-4
75-25-2
101-55-
3
85-68-7
(Total)
75-15-0
56-23-5
p-Chloroaniline 106-47-
Chlorobenzene 108-90-
7
Benzo[k]fluoranthene
Benzo[ghi]perylene
Benzo[a]pyrene
Benzenemethanol
Ethane,
1,1'-[methylenebis
(oxy)]bis[2-chloro-
Ethane,
1,1'-oxybis[2-chloro-
propane,
2,2'-oxybis[1-chloro-
1,2-Benzenedicarboxylic
acid,
bis(2-ethylhexyl)ester
Methane, bromodichloro-
Methane, tribromo-
Benzene,
l-bromo-4-phenoxy-
1,2-Benzenedicarboxylic
acid, butyl phenylmethyl
ester
Cadmium
Carbon disulfide
Methane, tetrachloro-
Benzenamine, 4-chloro-
Benzene, chloro-
8270
8100
8270
8100
8270
8100
8270
8270
8250
8270
10
200
10
200
10
200
10
20
10
10
8270
8010
8270
10
100
10
8060
8270
8010
8240
8010
8240
8270
8060
8270
6010
7130
7131
8240
8010
8240
8270
8010
20
10
1
5
2
5
10
5
10
40
50
1
5
1
5
20
2
p-Chloro-m-cres 59-50-7
ol
Phenol,
4-chloro-3-methy1-
8040
ACtaclimenr Seven page-3
Chloroethane;
Ethyl chloride
Chloroform
75-00-3
67-66-3
2-Chloronaphtha 91-58-7
lene
2-Chlorophenol 95-57-8
Dibenz[a,h]anth 53-70-3
racene
Dibromochlorome 124-48-
thane; 1
Chlorodibromome
thane
Di-n-butyl 84-74-2
phthalate
o-Dichlorobenze 95-50-1
ne
m-Dichlorobenze 541-73-
ne 1
p-Dichlorobenze 106-46-
ne 7
3,3'-Dichlorobe 91-94-1
nzidine
Dichlorodifluor 75-71-8
omethane
1, 1-Dichloroeth 75-34-3
ane
Ethane, chloro-
Methane, trichloro-
Naphthalene, 2-chloro-
Phenol, 2-chloro-
4-Chlorophenyl
phenyl ether
Chromium
Chrysene
7005-
72-3
(Total)
218-01-
9
Benzene,
1-chloro
Chromium
Chrysene
Dibenz[a,h]anthracene
Methane, dibromochloro-
1,2-Benzenedicarboxylic
acid, dibutyl ester
Benzene, 1,2-dichloro-
Benzene, 1,3-dichloro-
Benzene, 1,4-dichloro-
[1,1'-Biphenyl]-4,4'-dia
mine, 3,3'-dichloro-
Methane,
.dichlorodifluoro-
Ethane, 1,1-dichloro-
8270
8010
8240
8010
8240
8120
8270
8040
8270
8270
8240
6010
7190
7191
8100
20
5
10
0.5
5
10
10
5
10
10
5
70
500
50
200
8100
8010
8240
200
1
5
8060
8270
8010
8020
8120
8270
8010
8020
8120
8270
8010
8020
8120
8270
8270
8010
8240
8010
5
10
2
5
10
10
5
5
10
10
2
5
15
10
20
10
5
1
Attachment Seven i.i<3ge-4
1,2-Dichloroeth 107-06-
ane; Ethylene 2
dichloride
1,1-Dichloroeth
ylene;
Vinylidene
chloride
trans-l,2-Dichl 156-60-
oroethylene 5
2,4-Dichlorophe 120-83-
nol 2
2,6-Dichlorophe 87-65-0
nol
1,2-Dichloropro 78-87-5
pane
cis-1,3-Dichlor 10061-
opropene 01-5
trans-l,3-Dichl 10061-
oropropene 02-6
Diethyl 84-66-2
phthalate
p-(Dimethylamin 60-11-7
o)azobenzene
7,12-Dimethyl- 57-97-6
benz[a]anthrace
ne
Ethane, 1,2-dichloro-
75-35-4 Ethene, 1,1-dichloro-
Ethene, 1,2-dichloro-,
(E)-
Phenol, 2,4-dichloro-
Phenol, 2,6-dichloro-
Propane, 1,2-dichloro-
1-Propene,
1,3-dichlor.o-, (Z)-
1-Propene,
1, S-dichloro--, (E)-
1,2-Benzenedicarboxylic
acid, diethyl ester
Benzenamine,
N,N-dimethyl-4-(phenylaz
o)-
Behz[a]anthracene,
7,12-dimethyl-
8240
8010
8240
8010
8240
8010
8240
8040
8270
8270
8010
8240
8010
8240
8010
8240
8060
8270
8270
5
0.5
5
1
5
1
5
5
10
10
0.5
5
20
5
5
5
5
10
10
8270 10
3,3'-Dimethylbe
nzidine
alpha.
alpha-DimethyIp
henethylamine
2,4-Dimethylphe
nol
Dimethyl
phthalate
m-Dinitrobenzen
e
2,4-Dinitrophen
ol
2,4-Dinitrotolu
ene
2,6-Dinitrotolu
ene
Di-n-octyl
phthalate
119
7
122
8
105
9
131
3
99-
51-.
121
2
606
2
117
0
-93-
-09-
-67-
-11-
55-0
28-5
-14-
-20-
-84-
[1,1'-Biphenyl]-4,4'-dia
mine, 3,3'-dimethyl-
Benzeneethanamine,
alpha,alpha-dimethyl-
Phenol, 2,4-dimethyl-
1,2-Benzenedicarboxylic
acid, dimethyl ester
Benzene, 1,3-dinitro-
Phenol, 2,4-dinitro-
Benzene,
1-methyl-2,4-dinitro-
Benzene,
2-methyl-1,3-dinitro-
1,2-Benzenedicarboxylic
acid, dioctyl ester
8270
8270
8040
8270
8060
8270
8270
8270
8040
8270
8090
8270
8090
8060
8270
10
10
5
10
5
10
10
50
150
50
0.2
10
0.1
30
10
ACCaclunent Seven [jacje- 5
Diphenylamine 122-39-
4
Ethylbenzene 100-41-
4
Ethyl 62-50-0
methanesulfonat
e
Fluoranthene 206-44-
0
Fluorene
2-Hexanone
Indeno(1,2,3-
)pyrene
Isophorone
Isosafrole
-cd
591-78-
6
193-39-
5
78-59-1
120-58-
1
Lead
Mercury (Total)
Methapyrilene 91-80-5
Methyl bromide; 74-83-9
Bromomethane
Methyl 74-87-3
(Chloride;
Chioromethane
3-Methylcholant 56-49-5
lirene
Methylene
crhloride;
Dichloromethane
Methyl ethyl 78-93-3
Ketone; MEK
Benzenamine, N-phenyl-
Benzene, ethyl-
Methanesulfonic acid,
ethyl ester
Fluoranthene
86-73-7 9H-Fluorene
2-Hexanone
Indeno[1,2,3-cd]pyrene
2-Cyclohexen-l-one,
3,5,5-trimethyl-
1,3-Benzodioxole,
5-(1-propeny1)-
(Total) Lead
Mercury
1,2,Ethanediamine,
N,N-dimethyl-N'-2-pyridi
nyl-N'-
(2-thienylmethyl)-
8270
8020
8270
8100
8270
8100
8270
8240
10
Benz[j]aceanthrylene,
1,2-dihydro-3-methyl-
75-09-2 Methane, dichloro-
2-Butanone
8270
8010
8240
8015
8240
10
200
10
200
10
50
8100
8270
8090
8270
8270
6010
7420
7421
7470
8240
8270
200
10
60
10
10
50
1,000
50
2
5
10
Methane,
Methane,
bromo-
chloro-
8010
8240
8010
8240
20
10
1
10
10
5
5
10
100
AC t ar lunent Seven page-h
Methyl 66-27-3
methanesulfonat
e
2-Methylnaphtha 91-57-6
lene
4-Methyl-2-pent 108-10-
anone; Methyl 1
isobutyl ketone
Naphthalene 91-20-3
1,4-Naphthoquin 130-15-
one 4
1-Naphthylamine 134-32-
7
2-Naphthylamine 91-5 9-8
o-Nitroaniline 88-74-4
m-Nitroaniline 99-09-2
p-Nitroaniline 100-01-
6
Nitrobenzene 98-95-3
o-Nitrophenol 88-75-5
p-Nitrophenol
4-Nitroquinolin
e 1-oxide
N-Nitrosodi-n-b
utylamine
N-Nitrosodiethy
lamine
N-Nitrosodimeth
ylamine
N-Nitrosodiphen
ylamine
N-Nitrosodiprop
ylamine;
Di-n-propylnitr
osamine
N-Nitrosomethyl
ethylamine
N-Nitrosomorpho
line
N-Nitrosopiperi
dine
N-Nitrosopyrrol
idine
5-Nitro-o-tolui
dine
• 100-02-
7
56-57-5
924-16-
3
55-18-5
62-75-9
86-30-6
621-64-
7
10595-
95-6
59-89-2
100-75-
4
930-55-
2
99-55-8
Methanesulfonic acid,
methyl ester
Naphthalene, 2-methyl-
2-Pentanone, 4-methyl-
Naphthalene
1,4-Naphthalenedione
1-Naphthalenamine
2-Naphthalenamine
Benzenamine, 2-nitro-
Benzenamine, 3-nitro-
Benzenamine, 4-nitro-
Benzene, nitro-
Phenol, 2-nitro-
Phenol, 4-nitro-
Quinoline, 4-nitro-,
1-oxide
1-Butanamine,
N-butyl-N-nitroso-
Ethanamine,
N-ethyl-N-nitroso-
Methanamine,
N-methyl-N-nitroso-
Benzenamine,
N-nitroso-N-phenyl-
1-Propanamine,
N-nitroso-N-propyl-
Ethanamine,
N-methy1-N-nitroso-
Morpholine, 4-nitroso-
Piperidine, 1-nitroso-
Pyrrolidine, 1-nitroso-
Benzenamine,
2-methy1-5-nitro-
8270
8270
8015
8240
8100
8270
8270
8270
10
10
5
50
200
10
10
10
8270
8270
8270
8270
8090
8270
8040
8270
8040
8270
8270
8270
8270
8270
8270
8270
10
50
50
50
40
10
5
10
10
50
10
10
10
10
10
10
8270
8270
8270
8270
8270
10
10
10
10
10
At cacliment Seven page- 7
Pentachloroetha 76-01-7
ne
Phenacetin 62-44-2
Phenanthrene
Phenol
85-01-8
108-95-
2
p-Phenylenediam 106-50-
ine 3
129-00-
0
110-86-
1
94-59-7
[Total)
Pyrene
Pyridine
Safrole
Silver
Styrene 100-42-
5
1,2,4,5-Tetrach 95-94-3
lorobenzene
1,1,2,2-Tetrach 79-34-5
loroethane
Tetrachloroethy 127-18-
lene; 4
Perchloroethyle
ne;
Tetrachloroethe
ne
Tin
Toluene
(Total)
108-88-
3
1,2,4-Trichloro 120-82-
benzene 1
Ethane, pentachloro-
Acetamide,
N-(4-ethoxyphenyl)
Phenanthrene
Phenol
1,4-Benzenediamine
Pyrene
Tin
Benzene, methyl-
Benzene,
1,2,4-trichloro-
8240
8270
8100
8270
8040
8270
8270
5
10
200
10
1
10
10
8100
7870
8020
8250
8270
200
Pyridine
1,3-Benzodioxole,
5- (2-propeny'l) -
Silver
Benzene, ethenyl-
Benzene,
1,2,4,5-tetrachloro-
Ethane,
1>1,2,2-tetrachloro-
Ethene, tetrachloro-
8270
8240
8270
8270
6010
7760
8020
8270
8010
8240
8010
8240
10
5
10
10
70
100
1
10
0.5
5
0.5
5
,000
10
10
1,1,1-Trichloro 71-55-6
ethane;
Methylchlorofor
m
1,1,2-Trichloro 79-00-5
ethane
Ethane, 1,1,1-trichloro- 8240
Ethane, 1,1,2-trichloro- 8010 0.2
Atcaciimenc Seven page-
Trichloroethyle 79-01-6
ne;
Trichloroethene
Trichlorofluoro 75-69-4
methane
2,4,5-Trichloro 95-95-4
phenol
2,4,6-Trichloro 88-06-2
phenol
sym-Trinitroben 99-35-4
zene
Vinyl acetate 108-05-
4
Vinyl chloride 75-01-4
Xylene (total) 1330-
20-7
Zinc [Total;
Ethene, trichloro-
Methane,
trichlorofluoro-
Phenol, 2,4,5-trichloro-
Phenol, 2,4,6-trichloro-
Benzene, 1,3,5-trinitro-
Acetic acid, ethenyl
ester
Ethene, chloro-
Benzene, dimethyl-
Zinc
8240
8010
8240
8010
8240
8270
8040
8270
8270
5
1
5
10
5
10
5
10
10
8240
8010
8240
8020
8240
6010
7950
2
10
5
5
20
50
Attachment S^.v^h-.n parje-9
TABLE E-2.1
LIST 1
1,1-Dichloroethene: Vinylidene chloride
1,1-Dichloroethane
1,1,1-Trichloroethane: Methylchloroform
1,1,2-Trichloroethane
1,1,2,2-Tetrachloroethane
1,2-Dichloroethane: Ethylene dichloride
1,2-Dichloropropane
2-Hexanone
4-Methyl-2-'pentanone: Methyl isobutyl ketone
Acetone
Acrolein
Ammonia
Arsenic
Barium
Benzene
Bromodichloromethane
Bromoform: Tribromomethane'
Cadmium
Carbon disulfide
Carbon tetrachloride
Chlorobenzene
Chloroethane; Ethyl chloride
Chloroform
Chromium
cis-1,3 Dichloropropene
Dibromochloromethane: Chlorodibromomethane
Ethylbenzene
Lead
Manganese
Mercury
Methyl chloride: Chioromethane
Methyl bromide: Bromomethane
Methyl ethyl ketone: 2-Butanone
Methylene chloride: Dichloromethane
Nitrate
Sulfate
Styrene
Tetrachloroethylene: Perchloroethylene
Tin
Toluene
Total Dissolved Solids (TDS)
trans-l,2-Dichloroethylene
trans-l,3-Dichloropropene
Trichloroethylene: Trichloroethene
Trichlorofluoromethane
Vinyl chloride
Vinyl acetate
Xylene
At t (Tcluneiit ?eveii pjrie-lO
TABLE E-2.1
LIST 2
Sampled annually, one sample per compliance well
1-Naphthylamine
1,2,4-Trichlorobenzene
1,2,4,5-Tetrachlorobenzene
1,4-Naphthoquione
2-Acetylaminofluorene: 2-AAF
2-Chloronaphthalene
2-Chlorophenol
2-Methylnaphthalene
2-Naphthylamine
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrophenol
2,4-Dinitrotoluene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,6-Dichlorophenol
2,6-Dinitrotoluene
3,3-Dimethylbenzidine
3-Methylcholanthrene
3,3-Dichlorobenzidine
4-Aminobiphenyl
4-Bromophenyl phenyl ether
4-Chlorophenyl phenyl ether
4-Nitroquinoline 1-oxide
5-Nitro-o-toluidine
7,12-Dimethylbenz[a]anthracene
Acenaphthene
Acenaphthylene
Acetophenone
alpha aIpha-Dimethylphenethylamine
Aniline
Anthracene
Benzo[a]anthacene: Benzanthracene
Benzo[a]pyrene
Benzo[b]fluoranthene
Benzo[ghi]perylene
Benzo[k]fluoranthene
Benzyl alcohol
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl)ether
Bis(2-chloro-l-methylethyl)ether
Bis (2-ethylhe:^jyl) phthalate
Butyl benzyl phthalate
Chrysene
AfCdcr.limeiit
TABLE E-2.1 (CONT.)
LIST 2
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenz[a,h]anthracene
Diethyl phthalate
Dimethyl phthalate
Diphenylamine
Ethyl methanesulfonate
Fluoranthene
Fluorene
Indeno(1,2,3-cd)pyrene
Isophorone
Isosafrole
m-Dichlorobenzene
m-Dinitrobenzene
m-Nitroaniline
Methapyrilene
Methyl methanesulfonate •
Naphthalene
N-Nitrosodi-n-butylamine "
N-Nitrosodiethylamine
N-Nitrosodlmethylamine
N-Nitrosodiphenylamine
N-Nitrosodipropylamine: Di-n-propyinitosamine
N-Nitrosomethylethylamine
N-Nitrosomorpholine
N-Nitrosopiperdine
N-Nitrosopyrolidine
Nitrobenzene
o-Dichlorobenzene
o-Nitroanline
o-Ni t ropheno1
p-(Dimethylamino)azobenzene
p-Chloro-m-cresol
p-Chloroaniline
p-Dichlorobenzene
p-Nitroaniline
p-Ni t ropheno1
p-Phenylendiamine
Phenacetin
Phenanthrene
Phenol
Pyrene
Pyridine
Safrole
Silver
sym-Trinitrobenzene
Zinc
Acrachmeiic Seven pacie-13
M-13 6 LIQUID THERMAL
TREATMENT AREA POST-CLOSURE PERMIT APPLICATION
CORRECTIVE ACTION ADDENDUM
MARCH 19 92
REVISED OCTOBER 22, 19 99
E-6g(l)(a) Background Ground Water Quality Data
Ground water quality at M-136 is highly variable. Con-
centrations of Total Dissolved Solids (TDS) range from 400
mg/L near the flanks of the Blue Springs Hills to over
12,000 mg/L in the valley (Bolke and Price, 1972). Many
other inorganic constituents also follow this pattern.
Three upgradient, background wells have been installed at M-
136 to represent this varying water quality. Statistical
Analysis of Ground Water Monitoring Data at RCRA
Facilities.Interim Guidance, (p.2-5) allows comparisons of
downgradient wells be made with all background wells
combined, rather than with one particular background well.
Combining the three very different background wells adjusts
the mean and increases the variance. As a result, when a
downgradient well with either very good water quality or
naturally poor water quality is compared to the combined
background wells, it may fail a statistical test even though
it may have similar mean and variance to an individual
background well. Where this effect is obvious, it is
Thiokol's position that no relS'ase has occurred (inorganic
constituents only). Inorganic constituents in compliance
well A-7 are an example of this. Well A-7 is in an area of
low hydraulic conductivity and naturally occurring poor
water quality. It contains high levels of calcium,
potassium, silicon, sodium, carbonate, chloride, nitrate,
sulfate, TDS, antimony and selenium. Yet it does not
contain artificial constituents including volatile organics
and perchlorate, or high levels of chromium, iron or man-
ganese which might indicate a release. Upgradient well C-8
exhibits similar characteristics. Thiokol believes that the
high levels of inorganic constituents are all naturally
occurring and do not represent a release from the M-13 6
units.
E-6g(l)(b) Sampling Frequency
Upgradient and compliance wells will be sampled
semiannually, with at least one sample collected per
sampling episode. Other wells will be sampled as Thiokol
believes necessary. This need will be evaluated
semiannually. The ground water sampling plan for Thiokol is
located in Appendix E-2.7. This plan includes the sampling
procedures and the field quality assurance/quality control
program for Thiokol and the analytical procedures and
quality assurance/quality control program for the
laboratory.
Table V of Appendix E-2.7 provides specific schedule for
sampling of monitor wells.
E'aiie 'i9
E-6g(l)(c) Sampling Quantity
The sampling procedure is located in Section 2.4 of Appendix
E-2.7. This procedure describes specifically the steps for
sampling the wells. At least one sample will be taken for
each Compliance and background well during each semiannual
sampling event.
E-6g(l)(d) Background Values
Refer to Subsection E-6g(l)(a).
E-6g(2) Plan for Establishing Ground Water Quality Data
Not applicable, refer to Section E-6g(l) for information
pertaining to Background Values.
E-6h Sampling, Analysis and Statistical Procedures
Refer to Appendix E-2.7 for the procedures addressing
sampling and shipping of samples and refer to Section E-
6h(7)(a) for the statistical analysis procedures.
E-6h(l) Sample Collection
Descriptions of the completed monitoring wells are found in
Appendix I of the noted sampling plan (found in Appendix E-
2.7. In general, there are two types of monitoring wells.
The first is described as a perched zone monitoring well and
the second is a standard monitoring well to the regional
aquifer. Each monitoring well must be sampled using a
particular sequence of procedures. Section 02 of this plan
describes in detail the proper procedure for collecting
samples from the wells.
E-6h(2) Sample Preservation and Shipment
Sampling equipment and techniques have been designed so that
the ground water sample is not contaminated or altered.
Table I of the sampling plan (Appendix E-2.7)lists the
proper handling instructions for taking ground water sam-
ples. Table I defines the proper preservation technique for
each type of sample.
An outside contracting laboratory is used to provide
analyses of the ground water samples, and appropriate
shipping procedures are used. All samples are packed in a
water-proof container and packed with reusable freezer packs
to reduce temperature. All samples are packed tightly with
proper packing material. All samples are labeled and ac-
companied by a laboratory request and chain of custody
sheet.
['age 4 0
E-6h(3) Analytical Procedure
The ground water samples will be analyzed per the procedure
listed in Appendix E-2.7, Table II. All samples are anal-
yzed for the field water quality parameters identified in
Table III of Appendix E-2.7.
E-6h(4) Chain of Custody
All samples are labeled and accompanied by laboratory
request and chain of custody sheets. All samples are sealed
with a chain-of-custody seal to guarantee sample integrity.
An example of this seal is found in Figure III (see Appendix
E-2.7) . This seal shall be signed, numbered, and dated by
the sampler. The containers are then placed in coolers and
locked in a secure place. Under no circumstances will the
box with samples be left unlocked or unattended.
Additionally, all samples are accompanied by a chain-of-
custody form. This form will -be completely filled out,
signed, and date by the sampler. A copy of this form is
found in Figure II (see Appendilx E-2.7) .
E-6h(5) Additional Requirements for Compliance Point Monitoring
E-6h(5)(a) Sampling Frequency
Upgradient and compliance wells will be sampled
semiannually, with at least one sample collected per
sampling episode. Other wells will be sampled as Thiokol
believes necessary. This need will be evaluated
semiannually. The ground water sampling plan for Thiokol is
located in Appendix E-2.7. This plan includes the sampling
procedures and the field quality assurance/quality control
program for Thiokol and the analytical procedures and
quality assurance/quality control program for the
laborat03ry.
Table V of Appendix E-2.7 provides specific schedule for
sampling of monitor wells.
Sampling will continue for the compliance period, which is
equal to the active life of the waste management area. If
Thiokol is engaged in a corrective action program at the end
of the compliance period, Thiokol will continue to sample
until the ground water protection standard or alternate
concentration has not been exceeded for three years.
E-6h(5)(b) Testing for Appendix IX Hazardous Constituents
Ground water at the background and compliance wells has been
analyzed for Appendix IX constituents during the years 1989, 1990,
1991, 1993 and 1996. The results of this analytical data appear
PrK_.ie 41
to indicate that the Appendix IX constituents, that were included
as constituents of concern on List 3 of this Permit, have not been
released to the groundwater. The List 3 constituents for which
analyses have been conducted but no constituents have been
reported include: dioxins and furans, organophosphate and
organochlorine pesticides, herbicides, polychlorinated biphenols
and cyanide.
Based on the results of these analyses, Thiokol requested to
modify this permit in the fall of 1999, to discontinue the
sampling and analysis for the List 3 constituents that was
required. The Division of Solid and Hazardous Waste approved this
Permit Modification in December of 1999. Therefore, the sampling
and analysis for List 3 constituents is not required as of
December 1999.
Constituents which have been reported in ground water or
soil but not at statistically significant levels (Type 1
errors) will be sampled at annual intervals (See Appendix E-
2.7 Table IV). These include: base-acid-neutrals
(semivolatiles), phenols, and metals including mercury,
silver, and lead. If any constituents are found during
these analyses that are not listed in Table II (Appendix E-
2.7), they will be added to this list.
E-6h(5)(c) Compliance Point Ground Water Quality Values
Statistical methodology for evaluating ground water data is
found in Section E-6h(7)(a). This section discusses the
statistical procedures for determining if a statistically
significant increase of hazardous constituents is occurring
at the point-of-compliance at the M-136 Burning Grounds.
All values will be reported in relationship to practical
quantification limits (PQL).
E-6h(6) Annual Determination of Uppermost Aquifer Rate and
Direction
Water level measurements of all monitoring wells are taken
on a quarterly basis within a 24-hour period to insure
consistency between monitoring wells. The measurement for
December of each year is transferred to a potentiometric
surface map, where a flow net is determined (see Figure E-
2.4) .
E-6h(7) Statistical Determination
E-6h(7)(a) Statistical Procedures
In the First Interim Report, Section 7.3, Thiokol proposed
using an average replicate t-test and Cohen's Method to
evaluate whether M-136 units are in compliance with the
ground water protection standard and if there has been a
f'ai.;(e 4 2