HYDR 01OGIC DA TA FOR THE SAN JUAN AND ANIMAS RIVER ... · PRESENTATION OF THE DATA Seven...
22
HYDR 01OGIC DA TA FOR THE SAN JUAN AND ANIMAS RIVER VALLEYS IN THE FARMINGTON, AZTEC, SLOOMFIELD, AND CEDAR HILL AREAS, SAN JUAN COUNTY, NEW MEXICO By Douglas P. McAda and Shareen G. Shelton U.S. GEOLOGICAL SURVEY Open-File Report 87-385 Prepared in Cooperation with the SAN JUAN COUNTY COMMISSION, NEW MEXICO OIL CONSERVATION DIVISION, AND NEW MEXICO INTERSTATE STREAM COMMISSION N ON Albuquerque, New Mexico 1987
Transcript of HYDR 01OGIC DA TA FOR THE SAN JUAN AND ANIMAS RIVER ... · PRESENTATION OF THE DATA Seven...
HYDR 01OGIC DA TA FOR THE
SAN JUAN AND ANIMAS RIVER VALLEYS
IN THE FARMINGTON, AZTEC,
SLOOMFIELD, AND CEDAR HILL AREAS,
SAN JUAN COUNTY, NEW MEXICO
By Douglas P. McAda and Shareen G. Shelton
U.S. GEOLOGICAL SURVEY
Open-File Report 87-385
Prepared in Cooperation with theSAN JUAN COUNTY COMMISSION,
NEW MEXICO OIL CONSERVATION DIVISION,AND
NEW MEXICO INTERSTATE STREAM COMMISSIONN ON
Albuquerque, New Mexico
1987
DEPARTMENT OF THE INTERIOR
DONALD PAUL HODEL, Secretary
U.S. GEOLOGICAL SURVEY
Dallas L. Peck, Director
For additional information Copies of this report canwrite to: be purchased from:
District ChiefU.S. Geological Survey U.S. Geological SurveyWater Resources Division Books and Open-File Reports SectionPinetree Office Park Federal Center4501 Indian School Rd. NE, Suite 200 Box 25425Albuquerque, New Mexico 87110 Denver, Colorado 80225
CONTENTS
Page
Abstract ............................................................. 1
Introduction ......................................................... 1
Well-numbering system ................................................ 3
Presentation of the data ............................................. 5
FIGURES
Figure 1. Map showing location of the study areas ................... 2
2. Diagram showing well-numbering system ..................... 4
3. Map showing location of observation wells and San JuanRiver stage gage at Hammond Bridge ...................... 6
4. Hydrographs showing water levels in observation wells PN-1, PS-1, PS-2, and PS-3 and river stage at Hammond Bridge .......................................... 7
5. Map showing chloride concentration and specificconductance of ground water from selected wells ......... 8
6. Map showing chloride concentration and specificconductance of surface water at selected sites .......... 9
TABLES
Table 1. Water levels measured in observation wells nearHammond Bridge ........................................... 10
2. Records of wells inventoried ............................... 13
3. Records of*surface-water sites sampled ..................... 16 ut-X
' Xt4. Purgeable organic compounds for which samples were
analyzed ................................................. 18
111
CONVERSION FACTORS
Except for chemical concentrations and temperature, figures for measurement in this report are given in inch-pound units. The following table contains factors for converting to metric units.
Multiply inch-pound units By To obtain metric units
foot 0.3048 metermile 1.609 kilometer
Sea level: In this report "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929) a geodetic datum derived from a general adjustment of the first-order level nets of both the United States and Canada, formerly called "Mean Sea Level of 1929."
IV
HYDROLOGIC DATA FOR THE SAN JUAN AND ANIMAS RIVER VALLEYS
IN THE FARMINGTON, AZTEC, BLOOMFIELD, AND CEDAR HILL
AREAS, SAN JUAN COUNTY, NEW MEXICO
By Douglas P. MeAda and Shareen G. She1ton
ABSTRACT
In July 1985, the U.S. Geological Survey initiated a 3-year study in San Juan County, New Mexico, to determine the concentrations of chemical constituents in the ground water in the San Juan and Animas River valleys and to determine the direction and rate of ground-water flow and its relation to river stage. The study was conducted in cooperation with the San Juan County Commission and the New Mexico Oil Conservation Division. This report is a compilation of the data that was collected during the first 1^ years of the study. The report includes well records for 51 wells and water levels from 23 wells, hydrographs from 4 observation wells and 1 river-stage site, and available chemical analyses from 50 wells and 14 surface-water sites.
INTRODUCTION
There are numerous domestic wells in the valleys along the San Juan and Animas Rivers upstream from Farmington, New Mexico. The potential for contamination of ground water exists because of possible seepage from irrigation water, septic tanks, and oil-disposal pits.
In July 1985, the U.S. Geological Survey initiated a 3-year study in San Juan County, New Mexico, to determine the concentrations of chemical constituents in the ground water along the San Juan and Animas River valleys and to determine the direction and rate of ground-water flow and its relation to river stage. The study was conducted in cooperation with the San Juan County Commission and the New Mexico Oil Conservation Division. The purpose of this report is to disseminate data that were collected during the first 1^ years of the study.
The study areas include the San Juan River valley from Farmington to Bloomfield, the Animas River valley from Farmington to Aztec, and the Animas River valley near Cedar Hill (fig. 1).
COUORAOO108° 00' 107 45
AZTEC RUINS TIONAL MONUWE
10 15 KI1.0METERS
::::::nl|f MAP :-itH*i"::i^:::H| HiiliiHli AREA ::::::::::»:ar?;$
Figure 1.--Location of the study areas.
II
WELL-NUMBERING SYSTEM
The system of numbering wells in this report is based on the common subdivision of land into townships, ranges, and sections in the Federal land- survey system. The well numbers consist of four parts separated by periods (fig. 2). The first part is the township number, the second part is the range number, and the third part is the section number. The letters N (north) or S (south) in the township number indicate the direction from the New Mexico base line, and the letters E (east) or W (west) in the range number indicate the direction from the New Mexico principal meridian. Hence, the number 30N.12W.23 is assigned to any well located in sec. 23, T. 30 N., R. 12 W.
The fourth part of the well number indicates the tract within the section where the well is located. The method of numbering the tracts within the section is shown in figure 2. For this purpose, the section is divided into four quarters, numbered 1, 2, 3, and 4, in the normal reading order, for the northwest, northeast, southwest, and southeast quarters, respectively. The first digit of the fourth part gives the quarter section, which is a tract of 160 acres. Each quarter is subdivided in the same manner so that the first and second digits together define the 40-acre tract and the third digit defines the 10-acre tract. Additional digits can be used in the same manner to further divide the tracts. For example, well 30N.12W.23.142 is in the NEi of the SEi of the NW* of sec. 23, T. 30 N., R. 12 W. (fig. 2).
Well SON. I2W. 23.142
Figure 2.--Wel1-number!ng system,
4
PRESENTATION OF THE DATA
Seven observation wells and one stream-stage gage were installed along the San Juan River near Hammond Bridge for this study. The location of these wells and the stream-stage gage is shown in figure 3. Four of the observation wells (PN-1, PS-1, PS-2, and PS-3) and the stream-stage gage were fitted with water-level recorders. Water levels measured in the observation wells and the depths of each well are shown in table 1. Hydrographs from the four recorder wells and the stream-stage gage are shown in figure 4. Water levels at 15- minute intervals from these recorder stations are available from the U.S. Geological Survey's National Water-Data Storage and Retrieval System (WATSTORE).
Records of wells inventoried during the study are listed in table 2. Chloride concentration and specific conductance of water from the privately owned wells in the Farmington-Aztec-Bloomfield area and the well locations are shown in figure 5.
Records of surface-water sites where samples were collected are listed in table 3. Chloride concentration and specific conductance of water from those sites in the Farmington-Aztec-Bloomfield area and the site locations are shown in figure 6.
Water samples from six wells and one surface-water site were analyzed for the purgeable organic compounds listed in table 4. The wells sampled are noted in table 2 by an asterisk next to the location number. The surface- water site was Cedar Ditch at Cedar Hill and is noted by an asterisk in table 3. The detection limit in the chemical analysis for these compounds is 3.0 micrograms per liter. None of the compounds listed in table 4 were detected in any of the water samples.
108°06'00" 108"05 30
500I
1000 1500 FEET __I
R. 12 W.
100I
200 300 400 METERS
EXPLANATION
OBSERVATION WELL AND WELL NAME "R" indicates continous water-level recorder
STREAMFLOW-GAGING STATION NUMBER 09357100 Water-discharge records collected intermit tently from January 1910 to September 1981. Stream-stage records collected from December 1985 to present
Figure 3.--Location of observation wells and San Juan River stage gage
at Hammond Bridge.
6
u inu >om
I- uU.
Z
U QD I-
I-J
U >UJIDC U
5329
5328
5327
5326
5329
5323
5327
5326
5330
5329
5328
5327
5331
5330
5329
5329
5328
5327
5326
5325
PN-1
PS-1
PS-2
PS-3
-i i i I i i I I I i
San Juan River atHammond Bridge
r-
NOV DEC JfiN fT3 tlflR fiPR Mftt JUN JUL flUG SEP OCT NDV DEC JflN FE3 MRR
1985 1986 1987
Figure k. Water levels in observation wells PN-1, PS-1 , PS-2, and
PS-3 and river stage at Hammond Bridge.
7
108°15
108°
00
EXPL
ANAT
ION
WA
TER WELL Number ab
ove
line is ch
lori
de co
ncen
tration,
in mi
llig
rams
per
lite
r.
Number be
low
line
is specific conductance, in microsiemens
per
centimeter at
25 de
gree
s Ce
lsiu
s
R.13
W.
Base from U
.S.
Geol
ogic
al Surv
ey
1:2^
,000
an
d 1:
62,5
00 qu
adra
ngle
s
R. I
2
W.
R.
I I
W.
6 M
ILE
S
KIL
OM
ET
ER
S
Figure 5>
--Ch
lori
de concentration
and
spec
ific
co
nduc
tanc
e of grou
nd water
from
selected we
lls.
108° 15
108°00
EXPL
ANAT
ION
SURFACE-WATER
SAMP
LING
SI
TE N
umbe
r above
line
s ch
lori
de concentration,
in milligrams pe
rli
ter.
Number be
low
line is specific co
nduc
t
ance
, in mi
cros
ieme
ns pe
r centimeter at
25
degrees
Celsius. * ind
icat
es sample w
as taken
during April
15-17, 1986.
All
other
samples
were
ta
ken
Augu
st 23
, 1985
ARM
ING
TON
R. 1
3 W
.
Base
from U
.S.
Geological Su
rvey
1:
2^,0
00 an
d 1:
62,5
00 qu
adra
ngle
s
R.
12
W.
R. 1
1 W
,
I6
MIL
ES
i
1 I
I T
2 4
02
46
K
ILO
ME
TE
RS
Figure 6.--Chloride concentration
and
spec
ific
conductance
of su
rfac
e water
at se
lect
ed si
tes.
Table 1. Water levels measured in observation veils near Hammond Bridge
EXPLANATION
Location number: See text and figure 2 for explanation of numbering system,Depth of well: Depth of the well, in feet below land surface.Date: Date of the water-level measurement.Water level: Depth to water, in feet below land surface.
Depth of well
Well name Location number (feet) Date
PN-4 29N.12W. 27. 331113 16 01-24-8602-28-8603-13-8603-20-8604-14-8606-02-8607-30-8608-19-8610-07-8612-03-8601-06-8702-11-87
PN-3 29N.12W. 27. 331333 16 01-24-8602-28-8603-13-8603-20-8604-14-8606-02-8607-30-8608-19-8610-07-8612-03-8601-06-8702-11-8703-16-87
PN-2 29N.12W. 27. 333331 8 01-22-8602-28-8603-13-8603-20-8604-14-8606-02-8607-30-8608-18-8610-07-8612-03-86
Water level (feet)
8.348.447.458.448.419.18
10.4710.929.778.128.098.13
8.337.227.307.267.258.198.769.338.487.167.127.066.91
2.482.742.632.572.622.842.322.792.742.25
10
Table 1. Water levels measured in observation wells near HammondBridge Continued
Depth of well
Well name Location number (feet) Date
PN-2 29N.12W. 27. 333331 8 01-06-8702-11-8703-16-87
PN-1 29N.12W. 33. 222224 10 01-24-8602-28-8603-13-8603-20-8604-14-8606-02-8607-30-8610-07-8612-04-8601-06-8702-11-8703-16-87
PS-1 29N.12W. 33. 222424 10 01-24-8602-28-8603-13-8603-20-8604-14-8606-02-8607-30-8610-07-8612-04-8601-06-8702-11-8703-16-87
PS-2 29N.12W. 33. 222443 10 01-24-8602-27-8602-28-8603-13-8603-20-8604-14-8606-02-8607-30-8612-04-8601-06-8702-11-8703-16-87
Water level (feet)
2.122.022.02
4.885.405.185.165.165.324.355.452.644.524.344.36
3.874.684.544.534.564.843.794.753.803.763.713.56
3.093.513.523.553.533.603.883.052.812.822.752.45
11
Table 1. Water levels measured in observation wells near Hammond Bridge - Concluded
Well name
Depthof well
Location number (feet)
Waterlevel
Date (feet)
PS-3 29N.12W.33.224442 8 01-24-86 1.7302-27-86 1.9702-28-86 1.9703-13-86 2.0903-20-86 2.1104-14-86 2.2306-02-86 2.3607-30-86 1.7910-07-86 1.8612-04-86 1.3601-06-87 1.4102-11-87 1.4403-16-87 .89
12
Table
2.
Reco
rds of
wel
ls i
nventoried
[Loc
atio
n number:
See
text
and figure 2
for
expl
anat
ion of num
beri
ng sy
stem
; *
- in
dica
tes
sample was
ana
lyze
d fo
r the
purg
eabl
e organic
comp
ound
s listed in
ta
ble
4.
Depth
of w
ell:
Depth of the
well,
in fe
et below l
and
surface; re
port
ed d
epth
s indicated by
R;
all
others w
ere me
asur
ed.
Water
leve
l:
Dept
h to wat
er,
in fe
et
below
land
surface; re
port
ed w
ater
levels indicated by
R;
all
others w
ere measured.
Spec
ific
conductance:
Spec
ific
conductance o
f the well wat
er,
in mic
rosi
emen
s per centimeter a
t 25
deg
rees C
elsi
us.
Chloride:
Dissolved-chloride c
once
ntra
tion
of
the we
ll w
ater
, in
milligrams
per
liter]
Loc
atio
n nu
mbe
r
29N
.11W
.20.
4422
29N
.11W
.21.
4343
29N
.11W
.22.
3322
129
N.1
1W.2
2. 33
2232
29N
.11W
.22.
4233
4
29N
.11W
.22.
4234
329
N.1
1W.2
9.41
324
*29
N.1
1W.2
9.43
122
*29
N.1
1W.3
0.22
4329
N.1
1W.3
0.23
332
29N
.12W
.19.
341
29N
.12W
.19.
342
29N
.12W
.20.
3333
129
N.1
2W.2
0.33
333
29N
.12W
.25.
4331
Wel
l ow
ner
Tony
Per
ez
Myr
on J
acqu
ezSa
m H
inso
n
Chr
isto
bol
Car
rill
o
Pau
l J.
B
righ
tD
an W
oodw
ard
E.H
. W
oodw
ard
Ter
ry 0
1 son
Duk
e Sm
ith
Vau
ghn
Var
bel
J.
R.
Ham
mon
dJ.
R.
Ham
mon
d
Dep
thof
wel
l(f
eet)
36 R
38 20 R
27
R
20 R
21
R 12 25 R
30 R
46 R
28 R
90 R
Dat
e w
ater
W
ater
leve
l le
vel
D
ate
mea
sure
d (f
eet)
sa
mpl
ed
04-1
6-86
04-1
6-86
2.
32
04-1
6-86
04-1
6-86
04-1
6-86
04-1
9-86
04-1
6-86
04-1
6-86
6
R 04
-16-
86
04-1
6-86
04-1
6-86
04-1
7-86
04-1
7-86
04-1
5-86
04-1
5-86
04-1
5-86
05-2
9-77
10
R
04-1
5-86
04-1
7-86
Spe-
T
empe
r-
cif
ic
atur
e co
n-D
egre
es
du
ct-
Cel
sius
) an
ce
1,80
0
3,85
0
3,00
0
3,35
0
3,36
0
1,20
0
1,10
0
1,15
0~
1,
550
1,90
0~
1,
700
1,00
0
800
1,30
0~
1,
900
1,00
0
pH(u
nit
s)
7.4
6.8
7.8
7.4
7.4
8.1
7.7
7.5
7.7
7.5
7.6
7.8
8.0
7.4
7.5
7.5
Chl
ori
de
10 32 22 24 22 8.0
7.0
18 29 12 170
120 58 28 96 6.
0
Tab
le 2
. R
ecor
ds o
f w
ells
in
ven
tori
ed -
Con
tinu
ed
Loca
tion
num
ber
29N.
12W.
27.134
429
N.12
W.27
.31
312
29N.
12W.
27. 3
14143
29N.
12W.
27.331
113
29N.
12W.
27. 3
31333
29N.12W.27. 3
33331
29N.12W.27.4113
29N.12W.29. 11334
2 9N.12W.29. 132424
29N.12W.33. 22
2224
29N.12W.33. 2
22424
29N.
12W.
33. 222443
29N.
12W.
33. 2
24442
29N.
12W.
33. 2
4221
29N.12W.34. 11334
29N.12W.35.12114
29N.
12W.
35.21114
29N.
12W.
35.413132
29N.
13W.
16.34243
29N.
13W.
16.34412
Well o
wner
Rich
ard
Torres
Jerald B
rewe
rKe
nnet
h Piersall
U.S.
Geological S
urvey
U.S.
Geological S
urvey
U.S. Geological S
urve
yPhil O
fferle
Jim Pr
ice
Lee
Clapp
U.S.
Geological S
urvey
U.S.
Geological S
urvey
U.S. Ge
olog
ical
Su
rvey
U.S.
Geological Survey
Loyd M
edin
aJoe Me
rrim
an
Ralp
h Wi
lson
Robe
rta
Arch
erLe
e Fe
rnan
dez
J.A.
Drake
Guy
Bell,
Jr.
Dept
h of
well
(fee
t)
35 R
32 R 16 16 8 90 R
18 21 R
10 10 10 8 10 R
30 R
38 R
11 44 R
Date
wa
ter
level
meas
ured
06-05-78
03-19-79
01
-24-
8601-24-86
01-22-86
01
-24-
86
01-24-86
01-24-86
01-2
4-86
09-11-85
04-16-86
09-27-77
Wate
r level
(fee
t)
17 R
15 R 8.34
8.33
2.48 4.88
3.90
3.09
1.73
5.44 6.26
35 R
Spe
cific
con-
Date
Te
mper
- duct-
sampled
ature
04-15-86
04-15-86
04-15-86
02-27-86
02-27-86
02-2
7-86
04-17-86
04
-15-
86
04-15-86
02-26-86
02
-26-
86
02-27-86
04-14-86
09-12-85
04-17-86
04-17-86
04
-16-
86
04-15-86
04-15-86
ance
2,300
1,95
01,
700
2,600
3,300
1,200
3,500
2,950
460
4,70
04,
300
5,900
3,700
3,950
1,800
1,35
01,
650
1,43
01,450
PH(u
nits
)
7.5
7.8
7.8
8.0
7.4
7.9
7.2
7.7
8.0 7.
68.
07.5
7.3
7.2
7.5
7.6
7.6
7.5
7.5
Chlo
ri
de
28 30 33 90 70 20 20 72 8.0 38 34 720
120 31 12 10 49 66 64
Tabl
e 2.
Records of
wells i
nven
tori
ed - Con
clud
ed
Loca
tion
num
ber
29N.13W. 16. 34
4421
29N.13W.21.2
1114
429
N.13
W.22
. 12
1344
29N.
13W.
22. 2
4333
29N.
13W.
22.3
1133
30N.11W. 18.
12242
30N.
12W.
13. 3
1441
30N.
12W.
22.4
441
30N.
12W.
23.1
4230N.12W.29.424
32N.
10W.
33.4
1431
32N.
10W.
33.4
23
32N.
10W.
33.4
243 *
32N.10W.33.44111 *
32N.
10W.
33.4
4112
*
32N.
10W.
33.4
421 *
Well
owner
Dick
Mayer
Feli
bert
o Graham
Bill
Gar
riso
nFelix Va
ldez
Joseph >
ferr
Rich
ard
Ervine
D.E. Ha
wkin
sJack Hal
eyNannie M
cCar
ty
Robert Gillingham
William To
wnse
nd
Will
iam To
wnse
ndNe
al B
rixner
C. C. Hunter
Will
iam To
wnse
nd
Dept
hof wel
l(feet)
45 R
40 R
43 R
32 R
32 R
45 R
62 R
37 R
45 R
70 R
30 31 R
32 R
30
Date
water
leve
lmeasured
_ .
08-31-78
07-1
0-84
04-1
8-86
08-19-66
04-1
8-86
08-1
9-86
04-1
8-86
04-1
8-86
08-1
9-86
08-1
9-86
04-1
8-86
08-1
9-86
Water
level
(feet)
_ .
21 R
14 R
36.8
920.81
31.82
20.81
28.1
629.97
16.76
16.93
27.21
14.5
0
Date
samp
led
04-1
5-86
04-1
5-86
04-16-86
04-1
4-86
04-14-86
04-1
7-86
04-17-86
04-1
7-86
04-1
7-86
04-17-86
04-18-86
08-20-86
04-1
8-86
08-2
0-86
08-2
0-86
08-2
0-86
08-2
0-86
Spe
cific
con-
Temp
er-
duct-
ature
ance
~
1,430
5,700
~
750
650
980
900
900
730
2,20
0
2,22
0
800
560
600
500
16.0
780
16.5
53
0
17.0
51
0
pH(units)
7.5
7.8
7.7
7.6
7.5
7.6
7.3
8.0
7.3
7.3
7.1 6.
67.1
7.3
6.6
Chlo
ride
661,
600 20 18 36 14 14 16 33 14
Table 3.
Reco
rds of
surface-water sites sanpled
[Sta
tion
name
and
location:
See
text a
nd figure 2
fo
r explanation of
num
beri
ng s
ystem.
Stat
ion number:
Uniq
ue 8
- or
15-digit nu
mber
identifying s
tati
on i
n WATSTORE.
Date:
Date s
ample was
take
n.
Specific c
ondu
ctan
ce:
Spec
ific
conductance o
f th
ewater, in mic
rosi
emen
s pe
r ce
ntim
eter
at
25 d
egre
es Celsius.
Chlo
ride
: Dissolved-
chloride c
oncentration,
in milligrams
per
liter]
Stat
ion name a
nd l
ocation
San Juan R
iver a
t Bl
ocmf
ield
29N.
11W.
27.1
31
San Juan R
iver a
t Ha
mmon
d Bridge n
ear
Bloo
mfie
ld
29N.
12W.
33. 2
22
San
Juan
River a
t Bo
lack
Bri
dge near F
arming ton
29N.13W.24.441
San
Juan
River
at pu
mpin
g st
atio
n near
Far
ming
ton
29
N.13
W.22
.332
San Ju
an R
iver a
t Farming t
on
29N.13W.17.414
Anim
as R
iver a
t Hi
ghwa
y 550
at A
ztec
Station nu
mber
09357000
09357100
3642
2910
8090
310
3642
2610
8115
210
0936
5000
364930108001210
Date
08-23-85
04-1
6-86
08-23-85
02-28-86
04-1
6-86
08-2
3-85
04-1
5-86
04-1
5-86
04-17-86
Temp
er
ature
( deg
rees
Ce
lsiu
s)
17.0 8.5
15.5 8.0
15.0 7.5
8.0
9.0
Spe
ci
fic
con
duct
ance
300
290
328
330
295
300
300
320
350
PH
(units)
8.0
7.8
8.0
8.4
7.7
7.7
7.7
7.6
Chlo
ride 6.0
6.0
8.0
6.0
3.0
6.0
6.0
6.0
1030
N.11
W.09
.311
Animas R
iver a
t Fa
rmin
g to
n 29
N.13
W.15
.331
0936
4500
04-15-86
8.5
360
7.9
8.0
Tab
le 3
. R
ecor
ds o
f su
rfac
e-w
ater
sit
es s
ampl
ed -
Con
clud
ed
Sta
tio
n n
ame
and
loca
tion
Sta
tion n
umbe
rD
ate
Tem
per
at
ure
(d
egre
es
Cel
sius
)
Spe
cif
ic
con
d
uct
an
cepH
C
hlo-
(u
nit
s)
ride
Han
roon
d D
itch
bel
ow r
efin
ery
nea
r B
loom
fiel
d 29
N.1
1W.2
7.32
2
Ham
mon
d D
itch
wes
t of
Kut
z C
anyo
n ne
ar B
loom
fiel
d 29
N.1
1W.3
2.13
3
Han
roon
d D
itch
sou
th o
f Ha
mm
ond
Bri
dge
near
Far
min
gton
29
N.1
2W.3
4.13
3
Kut
z C
anyo
n at
Sta
te H
ighw
ay 4
4 ne
ar B
loom
fiel
d 28
N.1
1W.1
5.12
2
Hor
n C
anyo
n W
ash
at
Cou
nty
Road
550
0 ne
ar B
loom
fiel
d 29
N.1
2W.3
6.34
4
Gal
lego
s C
anyo
n W
ash
near
Far
min
gton
29
N.1
2W.2
8.33
4
Ced
ar D
itch
at
Ced
ar H
ill
* 32
N.1
0W.3
3.41
4
3641
4810
7584
410
08-2
3-35
16
.0
225
3640
5910
8011
810
08-2
3-85
17
.0
253
3641
0310
8054
110
08-2
3-35
17
.0
263
3640
0510
7593
010
08-2
3-35
640
364033108030310
08-2
3-85
19
.0
270
365618107525601
08-2
0-86
17
.0
440
1.0
2.0
2.0
8.0
9.0
2.0
3641
2810
8063
510
08-23-35
27.0
2,
200
8.3
68
8.0
* Sa
mple
was a
naly
zed
for
the
purg
eabl
e or
gani
c compounds
listed in
tab
le 4
.
Table 4» Purgeable organic compounds for Which samples were analyzed
Chlororaethane Bromomethane Vinyl chloride Chloroethane Methylene chloride 1,1-dichloroethane1.1-dichloroethene Trans-1,2-dichloroethene Chloroform1.2-dichloroethane1,1,1-trichloroethaneCarbon tetrachlorideBromodichloromethane1,2-dichloropropaneTrans-1,3-dichloropropeneTrichloroetheneDibromochloromethaneBenzene1,1,2-trichloroethaneCis-1,3-dichloropropene2-chloroethylvinyl etherBromoform1,1,2,2-tetrachloroethaneTetrachloroetheneTolueneChlorobenzeneEthylbenzeneDichlorodifluoromethane1.3-dichloropropane Trichlorofluororaethane 1,2~dichlorobenzene1.4-dichlorobenzene 1,3-dichlorobenzene
18
