Data for Radon-222 and Other Radionuclides In Ground Water, Nevada… · 2010-11-27 · Data for...
Transcript of Data for Radon-222 and Other Radionuclides In Ground Water, Nevada… · 2010-11-27 · Data for...
Data for Radon-222 and Other Radionuclides In Ground Water, Nevada, 1986-89
By Michael S. Lico
U.S. GEOLOGICAL SURVEY
Open-File Report 91-488
Prepared in cooperation with theNEVADA BUREAU OF MINES AND GEOLOGY and theNEVADA BUREAU OF CONSUMER HEALTH PROTECTION SERVICES
Carson City, Nevada 1992
U.S. DEPARTMENT OF THE INTERIOR
MANUEL LUJAN, JR., Secretary
U.S. GEOLOGICAL SURVEY
Dallas L. Peck, Director
Any use of trade, product, or firm names in this publication is fordescriptive purposes only and docs not constitute endorsement by
the U.S. Government.
For additional information Copies of this report may bewrite to: purchased from:
U.S. Geological Survey U.S. Geological SurveyRoom 227 Federal Building Books and Open-File Reports Section705 North Plaza Street Federal CenterCarson City, NV 89701 Box 25425
Denver, CO 80225
CONTENTS
Abstract ..................Introduction ................
Purpose and scope ............Methods of sample collection and analysis
Radionuclide data ..............References cited ..............
Page
11224
17
ILLUSTRATIONS
(plate is in pocket at back of report)
Plate 1. Map showing location of ground-water sites in the Carson, Truckee, and Walker River basins, northwestern Nevada, where water samples were collected and analyzed for radioactive constituents
Figure 1. Map showing location of areas in figures 2-4and plate 1 and hydrographic areas in Nevada . . .
2-4. Maps showing location of sampling sites:2. Smoke Creek Desert hydrographic area ....3. Marys Creek hydrographic area ........4. Amargosa Desert hydrographic area ......
Table 1.
2.
TABLES
Statistical summary of radon-222 activities in ground- water samples collected in Nevada, 1986-89 ......
Radionuclide analyses and other information for wells and springs sampled in parts of Nevada, 1986-89 . .
ABBREVIATED WATER-QUALITY UNITS USED IN THIS REPORT
L (liter)H.g/L (micrograms per liter){Jin (micrometer)mg/L (milligrams per liter)mL (milliliter)pCi/L (picocuries per liter)
111
DATA FOR RADON-222 AND OTHER RADIONUCLIDES IN GROUND WATER, NEVADA, 1986-89
By Michael S. Lico
ABSTRACT
The U.S. Geological Survey collected an extensive amount of radionuclide data from ground water in many parts of Nevada during 1986-89. Data presented in this report include a statistical summary of all radon-222 data in the U.S. Geological Survey NWIS data base, location and other information on the 278 wells and springs sampled, and results of chemical analyses that include radon-222 activity, gross alpha and gross beta radioactivity, radium-226 activity, and uranium concentrations. Maps are provided to show locations of sampled wells and springs.
INTRODUCTION
Radon is a naturally occurring, colorless, odorless, inert gas formed by the radioactive decay of uranium-238 (Wanty and Schoen, 1991). Uranium-238 is present in trace concentrations in all rocks, but certain types such as granitic rocks, late-stage volcanic rocks, shales, and limestones generally contain the highest concentrations (Lanctot and others, 1985, p. 68).
Radon and its decay products are radioactive and, if present at sufficient activities in air, can cause lung cancer in humans (Cothern, 1987, p. 7). Radon released to air from drinking-water sources has been estimated to cause as much as 7 percent of the 5,000 to 20,000 lung-cancer fatalities per year in the United States (Cothern and others, 1986, p. 40). Radon gas can be released from water to the atmosphere by any one of several household activities, including showering and laundering (Lowry and others, 1987, p. 363). Human exposure to radon and its radioactive decay products occurs primarily in two ways: (1) inhalation of radon gas or decay products that have adhered to small dust particles, directly affecting the lungs, and (2) ingestion of radon-containing water, increasing the net dose of radiation to the stomach and intestines (Brutsaert and others, 1981, p. 407). Potential health effects are greatest to private domestic well-water users because of the generally short time between pumping and consumption of well water. The half-life of radon is relatively short (3.82 days); thus, long storage times in supply tanks and aeration with subsequent loss of radon to the atmosphere can greatly decrease the amount of radon in the well water by the time of actual use.
-I-
Recent increases in the population of Nevada have resulted in the construction of many new private and municipal wells for domestic water supplies. Many of these new wells are constructed in areas where pre vious studies indicate high activities of radon may exist. However, little is known about the distribution and occurrence of radon (specifi cally radon-222) in ground water of Nevada and further study is needed to determine the extent of high radon activities. Otton and others (1985, p. 21) found anomalously high activities of radon (as much as 345 pCi/L) in water from springs in the Lake Tahoe basin. A study of public drinking-water supplies (Horton, 1985, p. 123) found high activities of radon in the Gardnerville (724 pCi/L), Reno (1,104 pCi/L), and Yerington (1,348 pCi/L) areas (fig.l).
Purpose and Scope
The purpose of this report is to release data collected by the U.S. Geological Survey from 1986 through 1989, in cooperation with the Nevada Bureau of Mines and Geology and the Nevada Bureau of Consumer Health Protection Services. Data included in this report are all analyses for radon-222 activity, gross alpha radioactivity, gross beta radioactivity, radium-226 activity, and uranium concentrations in ground-water samples. Most of the data are from northern Nevada, but data from three sites in the Amargosa Desert also are included. The 278 sample-collection sites are shown in figures 2 through 4 and on plate 1.
Methods of Sample Collection and Analysis
Water samples were obtained at each well by pumping or bailing until water temperature, specific conductance, and pH were constant, and a minimum of three well-bore volumes of water was extracted. Existing in-well pumps were used to sample public-supply and domestic wells. Samples were collected as near to the well as possible, and in all cases samples were taken before the water entered a pressure tank. Observation wells were sampled using a positive-displacement bladder pump or a Teflon bailer. Samples were collected from a polyethylene tube fitted to the pump discharge, or they were taken directly from the bailer.
Samples obtained from springs were collected as close as possible to the orifice using a syringe or a peristaltic pump.
Water samples for gross alpha and beta, radium, and uranium analysis were filtered through a 0.45-micrometer nitrocellulose membrane into 1-liter, acid-cleaned, polyethylene bottles and acidified to a pH of about 1 with concentrated hydrochloric acid (Thatcher and others, 1977, p. 11).
Gross alpha and beta radioactivity were determined by evaporating an aliquot of sample and counting the emitted alpha and beta radiation. The measured radiation was compared to the radiation emitted by standard materials natural uranium in the case of alpha and an equilibrium mixture of strontium-90/yttrium-90 for beta. A detailed description of this analytical method is given by Thatcher and others (1977, p. 29-32). This method is regarded as a semiquantitative measure of gross sample activity.
2
42
Reno
Carson City ^ Lake Tahoe ~39°
Gardnervi
PLATE 1
75 MILES
75 KILOMETERS
35°-*
FIGURE 1.--Location of areas shown in figures 2 through 4 and plate 1 (this report) andhydrographic areas in Nevada. Modified from Rush (1968). Names and numbers of hydrographic areas where radon samples were collected are listed in table 1.
-3-
Radium-226 activity was determined by coprecipitating radium with barium sulfate, centrifuging to collect the precipitate, dissolving the precipitate in an alkaline sodium diethylene triamine pentacetate solution, allowing time for the ingrowth of alpha-emitting daughters, and counting the alpha activity (Thatcher and others, 1977, p. 43-49).
Dissolved uranium concentration was determined by evaporating an aliquot of sample, fusing the residue with a flux of sodium fluoride, sodium carbonate, and potassium carbonate, and allowing the residue-flux mixture to dry into a small disk. If a sample contained more than 10,000 mg/L of dissolved solids, a different procedure was followed: The uranium was first purified prior to evaporation by coprecipitation on aluminum phosphate, dissolving the precipitate in dilute nitric acid, and extracting the uranium with ethyl ether in the presence of magnesium nitrate. The fluorescence of the disk under ultraviolet light was measured in a reflection-type fluorimeter (Thatcher and others, 1977, p. 83-92).
Samples for laboratory analysis of total radon activity were obtained by bottom filling a 500 mL plastic beaker and allowing several beaker volumes of water to overflow, withdrawing a 10-mL aliquot of sample with a syringe from near the bottom of the beaker, carefully injecting the aliquot beneath 10 mL of a mineral-oil-based scintillator contained in a 30-mL glass scintillation vial, and tightly capping and shaking the vial. The vials were then shipped by express mail to the U.S. Geological Survey laboratory in Arvada, Colo., for analysis by liquid-scintillation counting (Prichard and Gesell, 1977). Samples were shipped as soon as possible after collection (within 24 hours) to minimize radon decay prior to analysis.
Dissolved-radon concentrations were also measured, using a field- screening method. A 1-liter polyethylene bottle was filled with 750 mL of water and capped with a septum cap. The bottle was shaken vigorously for 30 seconds to evolve radon gas in solution, then allowed to settle for 3 minutes. A 50-mL sample of the head-space gas was removed through the septum cap with a syringe and needle. The gas sample was injected, through a septum connector, into an evacuated Lucas-type, phosphor- coated cell. The cell was inserted into an EDA-200 alpha-scintillometer and the gas activity counted for 30 minutes. The counts were converted to radon activities, in pCi/L.
Duplicate water samples were collected from each well for radon analysis. If the duplicate analyses agreed to within 5 percent, the average of the two analyses was used; if not, the larger value was used. Loss of radon gas due to aeration during pumping may be significant for samples from public-supply wells, so these analyses probably represent lower radon activities at the wellhead than in the undisturbed aquifer.
RADIONUCLIDE DATA
A statistical summary of all radon-222 analyses of ground-water samples collected by the U.S. Geological Survey in Nevada during 1986-89 is presented in table 1. This table lists statistics for radon-222 activities in the entire State as well as for selected hydrographic areas. Table 2 contains all data collected for radon-222, gross alpha and gross beta radioactivity, radium-226, and uranium, and other infor mation for the 278 wells and springs sampled during 1986-89.
-4-
120° 119 °45' 119 °30'
40°45' 3*
40°30' *
40°15f ~:
^ i /Sierra. Army i /(Depot I, / \n s \ / Pyramid
f Lake
15 MILES
15 KILOMETERS
EXPLANATION
-- BOUNDARY OF HYDROGRAPHIC AREASAMPLED WELL OR SPRING-Showing
site number. Value in parentheses is concentration of radon-222, in picocuries per liter (see table 2)
Well *4 Spring (690) (450)3
FIGURE 2.--Location of sampling sites in the Smoke Creek Desert hydrographic area.
-5-
116° 30' 116° 151 116° 115°45'
40° 451
BOUNDAflYbFHYOROGRAPHICAREA
FIGURE 3.-Location of spring-sampling site in the Marys Creek hydrographic area. Concentration of radon-222 was 530 picocuries per liter.
-6-
116° 45' 116° 15'
36° 45'
36° 15'
BOUNDARY OF HYDROGRAPHIC AREA
FIGURE 4.-Location of well-sampling sites in the Amargosa Desert hydrographic area. Concentrations of radon-222 at sites 275-278 ranged from 320 to 460 picocuries per liter.
-7-
TABLE 1. Statistical uooary of radon-222 aotiviti** in pround-watar aaapl**ooll*ot*d in ffevada, 1986-89
[Radon-222 activities are in picocuries per liter; "<," activity is less than the indicated value; " ," statistical parameters not computed for fewer than eight sites.)
Hydrographicarea /number (figure 1)
Smoke Creek Desert/21Marys Creek Area/52Fernley Area/76Spanish Springs V./85
Truckee Meadows /8 7Pleasant Valley/88Washoe Valley/89Lake Tahoe Basin/90
Lemmon Valley/92Carson Desert/101Churchill Valley/102Dayton Valley/103
Eagle Valley/104Carson Valley/105Antelope Valley/106Amargosa Desert /2 30
Numberof
sites
8133
1234
25
1701023
545434
Arithmetic mean
640
780
4,188
659529726
2,7801,171
Median
570
750
2,500
555470750
2,050730
Stand ard
devia tion
525
192
4,377
387294366
2,8861,764
Mini mum
<80530<80420
560800500
<100
640<80160190
<80<80300320
Maxi mum
1,700530720880
1,2004,10012,00016,000
6402,2001,0001,800
14,00014,0001,400
460
Perce
25th
252
635
720
400300430
1,200495
ntiles
75th
920
878
8,400
852852970
3,1251,100
All sites 278 1,556 766 2,388 <80 16,000 487 1,400
-8-
TABLE 2. R&dionuclidm analyses and othmr information for wmllm and springs majaplud in part* of Nevada, 1986-89
frla
p No
.:
Corresponds
to si
te number o
n plate
1 an
d in
fi
gure
s 2 th
roug
h 4.
flell
dept
h:
Tota
l de
pth
of well,
in fe
et below
land
surface
(to
conv
ert
feet to meters,
multiply by 0.
3048
); Sp,
sample site is a
spri
ng.
Use
of well:
D, domestic,
I, ir
riga
tion
, L, li
vest
ock
supp
ly,
N, industrial,
O, observation, P, pu
blic
su
pply
, an
d, U,
unused.
Lithology
of aq
uife
r:
Type of
rock or se
dime
nt in wh
ich
the
well
is co
mple
ted
or fr
om wh
ich
spri
ng issues:
Basin
fill,
undifferentiated
alluvium,
colluvium, la
cust
rine
, or
other
recent sedimentary
depo
sits
; granite, un
diff
eren
tiat
ed intrusive
igneous
rock
s; meta se
d,metampjfphosed sedimentary
rocks; volcanic,
undi
ffer
enti
ated
vo
lcan
ic rocks.
[Che
mica
l an
alys
es are
meas
ures
of
dissolved
activity or co
ncen
trat
ion
unless otherwise
noted.
All
values rounded
to three
significant
figures.
Abbr
evia
tion
s: pCi/L, picocuries pe
r li
ter;
Sr/Y-90, strontium-go/yttrium-go; jig/L, mi
crog
rams
pe
r li
ter;
"<," ac
tivi
ty or
co
ncen
trat
ion
less
th
an indicated
valu
e; " ," da
ta or
information
not
avai
labl
e.)
Map
No. 1 2 3 4 5 6 7 8 910 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
Site
Local
- identification
21 N28 E2
021 N30 E19
21 N31 E2
021
N33 E2
021
N33 E2
0
21 N33 E2
221 N34 E19
21 N34 E22
52 N33 E5
276
N20 E2
5
76 N20 E25
76 N21 E25
85 N20 E2
085
N20 E21
85 N21 E2
0
87 N18 E19
87 N18 E19
87 N18 E19
87 N18 E2
087
N18 E2
0
87 N18 E2
087
N18 E2
087
N18 E2
087
N18 E2
087
N19 E19
87 N19 E2
087
N19 E2
088
N17 E1
888
N17 E19
88 N17 E2
0
89 N16 E19
89 N16 E19
89 N16 E19
89 N17 E19
90 N13 E18
19BDCD1
11DAAB1
09ADB1
11CDCA1
33AABB1
27BABD1
20CDDB1
18BBCA1
28DDC1
15BCBA1
22BCC1
34BBCC1
21ACDA1
06BBCB1
35DCCA1
24ACCA1
26ACAD1
34CDCC1
06ACCD1
07ACBB1
19AABB1
27BBCD1
30CBBC1
33DCDC1
12AABA1
08BAAD1
18BBAA1
23BCDD1
18CDAB1
07CCDC1
01DDAB1
05BABA1
11CDAB1
27DCAA1
01ACCA1
location
Latitude
40°16'54"N
40°29'14"N
40°34'48
MN40"45'06"N
40°42'21"N
40"43'15"N
40°48'41
MN40*50'20"N
40°42'40"N
39°36'10"N
39°35'07"N
39'38'51-N
39°35'12"N
39'38'01"N
39"38'15"N
39°24'46"N
39"23'56"N
39°22'31"N
39°27'18"N
39°26'36"N
39°25'06"N
39°24'04
MN39°23'42"N
39°22'36"N
39"32'03"N
39°32'19"N
39°31'27"N
39°19'21
MN39°19'59"N
39"20'52"N
39"16'35"N
39°17'11
HN39°15'36"N
39°18'16"N
39°01'12"N
Longitude
119°47'01
MW119°48'25"W
119°43'47"W
119"41'54"W
119°43'45"W
119°28'57"W
119°52'27"W
119"32'45"W
116*07' 30"W
H9«10'04"W
119°10'03"W
119°10'08
MW119°44'15"W
119°40'31"W
119°42'12"W
119"47'45"W
119°48'45"W
119°50'19"W
119°46'34
nW119«46'44"W
119°46'22
MW119°43'45
MW119°47'16
MW119°44'22"W
119°47'28"W
119°45'49"W
119°47'13"W
119°56'00"W
119°53'34"W
119°47'12"W
119°47'24
MW119°52'04
MW119°49'20"W
119°49'49"W
119°54'12
MW
Well
depth
(fee
tbelow
land
surf
ace)
__ 72 88 SpSp
_ Sp Sp 15 60 12220
605
203
760
710
236
323
645
108
831
145
490
282
660 Sp
500
151
_Sp
155
Sp
Use
of
well
U U U L U L U L P 0 0 0 P P P P P P P P P P P P P P P U U P U P D P U
Lithology
of
aquifer
Basin fi
llBasin fi
llBasin fill
Volc
anic
Volcanic
Basi
n fill
Volcanic
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basin
fill
Volc
anic
Andesite
Basin
fill
Basin
fill
Basalt
Basin
fill
Basin
fill
Granite
Basin
fill
Basin
fill
Granite
Basin
fill
_ Granite
Basin
fill
Basin
fill
Date
07-1
3-88
07-14-88
07-14-88
07-11-88
07-11-88
08-04-88
07-11-88
08-04-88
04-10-89
06-21-89
06-20-89
06-21-89
08-30-89
08-30-89
08-30-89
08-24-89
08-24-89
08-18-89
09-05-89
09-05-89
08-18-89
08-31-89
08-24-89
08-25-89
09-05-89
09-05-89
09-05-89
09-01-89
09-06-89
08-25-89
09-01-89
09-07-89
08-17-89
09-01-89
10-28-86
Gross
radioactivity
Radon-
Beta
222,
Radon-
Alpha
(pCi/L
total
222
(ng/L
as Sr
/ (pCi/L)
(pCi/L)
as U)
Y-90)
250
740
690
450
<80
1,700
260
980
530
<80
720
<80
420
880
790
820
630
660
880
870
1,200
650
1,000
830
560
570
680
800
4,100
2, 900
500
2,600
910
12,000
109
Radium-
226
(pCi
/L)
__ -- __ __
0.07 .10
_ .34
.19
__ .06 .06
.14
.10
.09
.12 __ .14 .30
.04
Uranium
(W/L
as U)
__ __
18
6.9
1.2
9.5
13
__ 4.
43.0
__ 1.7
9.6
2.1
4.2 .22
145 __ 5.3
10
ada, 1986-89 Continued
Gross
adioactivityBeta
Ipha (pCi/L Radium- Uranium ]lg/L as Sr/ 226 (jig/L
s U) Y-90) (pCi/L) as U)
> M < (0
0 OCM^ -O CM,H
tj S
S, H O CM CO-V. __ TJ CM .U-H T> (0 CM O y 2 ^£
r8, 5
H °7J8-"0 >i
§ O 0)
1 0 VM-H
?tA«r Information for tr«l
Well depth
__ (feet
below Use Lit
land of c Jde surface) well aq
"2 * 5 &
c; c TJ« 03
8 S3| 2 ^S »0 jJ
fl we«2 ° i *j
H O «M <0-H
H O-H
1C Q) H TJ
a
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1
1 1 1 1 1 1 1 1 1 1
ooooo ooooo in CM o o\ er\o\ r-i vo ro o\1-1
1 1 1 1 1
1 1 1 1 1ooooo
H.H ,-|,H ,H VM VM VM VM VM
C C C C C
n n M n nCO CO CO CO 10
CO CO CO CO CO
ooooo
CM 00 VD 00 r-l CM r-l r-i ro
33333
in in in in in
22222
zzzzzr~ o in r~ CM
ooooo ooooo
ro ro ro ro ro
i-l i-l
CQ Q < CQ CO
SSScQ CO OOOOO
oooooooooo"""""
zzzzz
CM «r CM
Illll II Illl Illll IIIIO CMOOOO IOOOO OOOOO IIVOOI1 1 1 1 1 1 1 1 1 1 1 1 Illll Illl in CM crt CM CM I vo r-i oo ro crt r-i crt oo crt I 1 |
1 CMroroin voro«rvoroinroin«r
voilli lioilll Illll IVDIICM Illll Illll Illll ooiilvOllll IICMIIII Illll lOlirO Illll Illll Illll OIIIO
o
o o\Illll Illllll lllli Illll crtoooo loooo ooooo oo i oo r- v Illll Illllll Illll Illll rorovooocrt iCMOooot-i r-i ro t- t- r~ r-i| r-i
in v in in r~ in in in vovovovro
f- CM
Illll Illllll Illll Illll OOOOOO IOOOO OOOOO rOI OOVO
vrocMin in v v oa inror-oov
Ollll IIOIOII Illll IOIII Illll Illll Illll Illll <"> 1 1 1 1 liroivoil Illll ICMlll Illll Illll Illll Illll VD O r-l f-
V CM V CM
OOOO OOIOIOO OOOOO OIOOO OOOOO OOOOO OOOOO OOOOO IOOOOO OOIOIOO CMOVDVOOO O 1 O O T OOOOO OOOOO O«TOOO VDOOVOOOOOlor~inin CMO «» ini-i inoinvor-i r-i or-vo r~ror-ii-iro orOi-icMi-i r-ioo<ri-ir-i r-«rincMCM
r-l i-l
OOOOOOOOOO OOOOOOOOOOOOOO OOOOOOOOOO OOOOOOOOOO QOOOOOOOOO OOOOOOOOOO OOOOOOOOOO OOOOOOOOOOIllll Illllll Illll Illll Illll Illll Illll Illll
Illll Illllll Illll Illll Illll Illll Illll Illllr-l O O O O O r-l r-l O r-l O O OOOOO O rH O O O OOOOO OOOOO OOOOO OOOOO
-H c c c c c ci! c c ccccc C^H c c il c d c c c ccccc ccccc cccccconnnn in in 10 vi n in in in in in in ia in in in in in in u> in in in in in in in in in in in in in in in in M ra ra ra ra ra ra M co ro cococococo coMcocora racocococo coracococo cococococo cacoraiaraUCOCOCOCO CD CD CJ) CO CO COCOCOCOCO COUCOCOCO COCOCOCOCO CQ CQ CO CO CQ CO CO CO CQ CO CO CO 00 CO CO
CuOOOO O O Cu D O OOOOO O Cu O O Cu OOOOO OOOOO OOOOO QQH5OQ
Or-iCT*ooro ovoo cu oo voroo*oor~ r-iinr~o*oo v o o\ tn v v v v in in ininminin t~- a\ in v atOi-l r-l r-ICMi-l OT CMr-ICMCM rO«T «T CMrOr-li-lrO CMr-irOCMr-l rOCMiHCMi-l i-linr~i-ICM CM r-l CM i-l i-l
33333 333 3 3 33333 33333 33333 33333 33333 33333
LOioioioio lOinio in in in in in in in loininioin Q-^'Q''^^ ^ ^ ^ ^ ^ ^ ^ ̂ ^ ^ m in ^ ̂ r ^r
22222 222 2 2 22222 22222 SSSSS SSSSS SSSSS SSSSS
zzzzz zzz z z zzzzz zzzzz zzzzz zzzzz zzzzz zzzzzr~vvocncM vovovo «a- a\ vooorOr-i0t cMr~inroin OCMCMCMC"- r C^-CMCMCM r~r~r~CMCM ror-iincMi-i
ininminin minin in in ininooo ooooo CMCMCMCMCM CMCMCMCMCM CMCNCMCMCM CMCMCMCMCM
rororororo rOroro ro ro rororororo rororororo rororororo rororororo rororororo rororororo
< Q O Q < Q < (_> CO CQ CJ < CQ Q < CQ < CJ CJ Q CO CQ CQ CQ CQ CQ CQ CJ CJ CJ CQ CQ CO CJ CJ < CJ «C < < < U CJ U Q O CJ CQ CO (_) < Q CO CO Q Q CJ U CJ Q CJ CO CO CO CO CQ CQ CQ CO CO CJ CJ CJ CJ (_) «S CJ < CQ Q CO CO CO CQ CO CJ Q CO CJ CJ 3 CQ < < < < Q Q O CQ CQ CQ CO CQ CO CO CO CO CQ CO CO CO CO CO CO CQ CO CJ < < CMCMCMCMCM CMCMrO rO O f~f~rOOO Oinr~r-r~ inCMCMCMCM CMCMCMCMCM CMCMCMCMCM OOOOOCMrO
OOOOOOOOOO OOOOOO 00 00 OOOOOOOOOO 000000000. <K <K <H <H <K <*<*<*<*<» <*<*<*<*<* 0000000000
WWWWW WWW H W WWWWW WWWUW WWWWU WWWWW WWUWU WWUWW
zzzzz zzz z z zzzzz zzzzz zzzzz zzzzz zzzzz zzzzz
o\ o\ o\ o\ o\ ct\ o\ o\ o\ o\ o\ o\ o\ o\ o\ o\ o\ o\ o\ o\ ooooo ooooo ooooo ooooo
-10-
TABL
E 2.
Ra
dio
na
clid
e a
na
lyse
*
and
oth
er
info
rmati
on
fo
r w
ell
s an
d s
pri
ng
s sa
mp
led
in
part
* of
Nev
ada,
1986-8
9 C
onti
nu
ed
Site
lo
cati
on
Map
No. 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
Local
,identification
101
N18
E28
101
N18
E28
101
N18 E2
910
1 N18 E29
101
N18 E29
101
N18 E29
101
N18 E29
101
N18 E29
101
N18 E29
101
N18 E29
101
N18 E29
101
N19 E2
710
1 N19 E2
710
1 N19 E2
710
1 N19 E2
8
101
N19 E2
810
1 N19 E2
8
101 N19 E2
810
1 N19 E2
810
1 N19 E2
8
101
N19 E2
810
1 N19 E2
810
1 N19 E28
101
N19 E2
810
1 N19 E28
101
N19 E2
810
1 N19 E2
910
1 N19 E29
101
N19 E29
101
N19 E2
9
101
N19 E2
910
1 N19 E29
101
N19 E2
9
101
N19 E2
910
1 N19 E2
9
101
N19 E2
910
1 N19 E29
101
N19 E2
910
1 N19 E2
910
1 N19 E2
9
101
N19 E2
910
1 N19 E3
010
1 N19 E3
0
101
N19 E3
010
1 N19 E3
0
23ADDB1
35CDBD1
02BADA1
05CCCB1
05DDAB1
07ABAD1
18BAAD1
20AABC1
27CDAD1
28DDCD1
30BDBA1
13CCCB1
19BCB1
21ACAA1
17DAAC1
19CCCB1
21BBCA1
22DDAD1
23DCDB1
25BCDD1
27DDDA1
30ADBC1
32BAAB1
32CDAB1
34BCAA1
34CCBD1
07DAAD1
08BBBB1
08DABC1
16ACBB1
17BABD1
18DCBB1
24ABDD1
25AADA1
25ADBD1
27CDAA1
29BACB1
29CACA1
30CBAD1
30CDBC2
33CBBC1
13ACAA1
23DBCD1
27ADDA1
30BBBA1
Latitude
39°24'25"N
39°22'32"N
39°27'30"N
39°26'48"N
39°26'59"N
39°26'40"N
39°25'48"N
39°24'58"N
39°23'27"N
39°23'19"N
39°23'51"N
39°30'18"N
39°29'57"N
39°30'01"N
39°30'38"N
39°29'26"N
39°30'04"N
39°29'29"N
39°29'25"N
39°28'59"N
39°28'35"N
39°29'03"N
39°28'29"N
39°27'48"N
39°28'13"N
39°27'45"N
39°31'29"N
39°30'14
MN39°31'41"N
39°30'51"N
39031'01
MN39°30'27"N
39030'03
MN
39°29'14"N
39°29'04"N
39°28'42"N
39°29'07"N
39°28'47"N
39°28'50"N
39°28'37MN
39°28'00"N
39°30'52"N
39°29'38"N
39°29'02"N
39°29'21"N
Longitude
118°47'04
MW118°48'51-W
118°41'48
MW118°45'40MW
118°44'40"W
118°46'03"W
118°46'18"W
118°44'48
MW118°42'54"W
118°43'38"W
118°46'26"W
118°54'40"W
119°00'18"W
118°56'59"W
118°51'22MW
118°53'30"W
118°51'13"W
118°49'07"W
118°48'20MW
118°47'40"W
118°49'05"W
118°52'44
ltW118°52'00"W
118°51'57"W
118°49'53"W
118°50'06"W
118°45'46"W
118°38'41"W
118°45'11"W
118°43'58"W
118°45'18"W
118°46'15"W
118°40'20"W
118°40'06MW
118°40'13"W
118°42'54"W
118°45'37"W
118°45'18"W
118°46'34
MW118°46'29"W
118°44'32"W
118°33'35"W
118°34'53"W
118°35'32"W
118°40'00"W
Well
depth
(feet
below
land
surf
ace)
12126 82 120
129 23 144 14 14
180 24
179
100 40 14 18 36 88 30 108 26 24 13 13 13 32 63 27 300
132
100
510 14 17 96 14 67 93
484
521
540 12 17 29 21
Gross
radioactivity
Use of
Lithology
ofwe
ll
aquifer
0 D D D D D D 0 0 D D I D D 0 0 D D D D D D 0 0 0 D D D D D D I 0 D D 0 P P P P P 0 D 0 D
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fi
llBasin
fill
Basi
n fill
Basi
n fill
Basi
n fi
ll
Basin
fill
Basi
n fill
Basi
n fi
llBasin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fi
llBasin
fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fill
Basa
ltBasin
fill
Basin
fill
Basin
fill
Basin
fill
Basa
ltBasalt
Basa
ltBasalt
Basa
ltBasin
fill
Basin
fill
Basi
n fill
Basin
fill
Date
07-12-88
04-18-89
04-28-89
04-20-89
03-08-89
03-06-89
04-2
0-89
07-13-88
07-13-88
04-21-89
03-07-89
02-28-89
02-28-89
04-26-89
06-20-88
09-01-88
02-23-89
08-10-89
04-18-89
03-09-89
03-07-89
08-30-89
02-23-89
06-21-88
06-21-88
06-21-88
08-03-88
02-15-89
03-01-89
04-26-89
04-25-89
04-25-89
03-06-89
03-02-89
08-03-88
08-03-88
04-19-89
08-30-89
06-2
2-88
03-01-89
02-22-89
01-25-89
01-25-89
01-26-89
08-02-88
04-25-89
08-30-89
06-21-88
04-19-89
Radon-
222,
total
(pCi
/L)
580
320
470
<80
470
1,30
0270
250
180
340
540
760
680
1,00
0370
700
890
680
470
690
500
720
890
560
660
460
840
720
360
500
440
300
520
240
450
540
440
410
650
110
550
210
<80
120
670
650
400
720
660
Rado
n-
Alph
a 22
2 (Jig/L
(pCi/L)
__ __ _ _ _ __ _ _ _
as U)
54 2.7
54 34 90 15 30 600 28 41 5.
31.5
18 30 67 161.7
__ 49 2.6
1.9
231.4
31 17
5.7
3.0
-- 16 213.
5112.8
2.3
2.9
960 55
Beta
(pCi
/L
as Sr/
Y-90)
31 6.9
8.2
9.2
41 4.8
29420 8.
1
31 17 4.6
22 21 44 8.
64.
8
__ 27 4.0
4.7
9.9
4.0
36 5.2
4.1
7.5
19 16 8.8
2.3
8.7
8.2
8.6
890 39
Radium-
226
(pCi
/L)
__0.
04 0.03 __
0.04 .
<0.02 _ _ .18 _ _ .11
.16 _ _ .09 --
0.7
Uranium
(W/L
as U) 48 1.
2
70 3366
0 45 8.2 .50
17 31 68 5.
8<.
40
_ 43 2.3
341.
6
45.50
<.40
1.5
40 17 2.5
<.40
2.2
2.2
1.7
210 610
TABL
E 2
. X
ad
lo/i
ucl
icfo
a
na
lyse
*
and
oth
er
info
rmati
on
fo
r w
ell
t m
nd m
prin
gm
sam
ple
d i
n p
art
* of
Nev
ada,
1986-8
9 C
onti
nu
ed
to I
-
Site lo
cati
on
Map
Local
,No.
identification
126
101
N19
127
101
N20
128
101
N20
129
1Q1
N20
130
101
N20
131
102
N17
132
102
N17
133
102
N17
134
102
N17
135
102
N18
136
102
N18
137
102
N18
138
102
N18
139
102
N18
140
102
N18
141
103
N15
142
103 N15
143
103
N15
144
103
N16
145
103 N16
146
103
N16
147
103
N16
148
103
N16
149
103 N16
150
103
N16
151
103
N16
152
103
N16
153
103
N16
154
103
N17
155
103
N17
156
103 N17
157
103 N17
158
103
N17
159
103
N17
160
103
N17
161
103
N17
162
103 N17
163
103
N18
164
104
N14
165
104
N14
E30
31BBAD1
E29 22CBAC1
E29 34BBAC1
E31
04CADD1
E31
15BABB1
E24
03ABAD1
E25 18DDD1
E25 29ADAB1
E25 32BAAA1
E24
15CCBA1
E24
25AADC1
E24
28CDBD1
E24
33BDAA1
E24
35ABAD1
E25 17CCBC1
E20
14CAAA1
E20
22ABCA1
E21
29BAAC1
E20
01ADAC1
E21 12ADAB1
E21
14ACAD1
E21
15CCDC1
E21
23DBAA1
E21
26BCAB1
E21
29DCDD1
E22
06CDDD1
E22
09BCBC1
E22
09CACA1
E22
20DABB1
E22
27DACC1
E22
30DABC1
E22
32DDBC1
E23
02BC1
E23
10BCCA1
E23
17DCBC1
E23 36BADC1
E24
34DDAC1
E23 35DCDC1
El 9 12ADAB1
E20 06CBAB2
Latitude
39*28'22"N
39e35'06
MN39
e33'41"N
39e37'19"N
39e36'24"N
39e22'26"N
39°19'52"N
39e18'47"N
39e18'08
MN
39e25'18"N
39e24'03MN
39e23'30"N
39e23'll"N
39°23'20"N
39e25'15
MN
39e09'49"N
39e09'17"N
39e08'30"N
39e17'00"N
39'16'10"N
39e15'26"N
39e14'41
MN39
e14'17"N
39'13'08-N
39e12'59"N
39e16'27"N
39e16'05MN
39e15'38"N
39e19'36"N
39e18'23"N
39e18'37"N
39e17'23
MN39e21'44"N
39-21'15"N
39e20'07"N
39e17'58"N
39e17'28"N
39e22'35"N
39e05'42"N
39e06'23
MN
Longitude
118'
39'5
4-W
118°43'22
MW118°43'16
MW11
8°30
'33-
W118*29'41
MW
119°
16'2
1"W
119°12'40
MW11
9*11
'38"
W119°12'07-W
119°17'04"W
119°13'51
MW119'17'54
MW119'17'45
MW119'15'09
MW119'12'37-W
119'
42'1
5"W
119'43'07-W
119
e38'55
MW119'40'57-W
119'33'59-W
119'35'18-W
119'
37'0
1-W
119'
35'1
8MW
119"35'52
MW119"38'42
MW
119°
33'2
1MW
119°31'34
MW119
e31'13
MW119°31'51
MW119e2
9'34
MW
119e3
3'05
MW119e31'50
MW119e22'34
MW119e23'39
MW119e25'
35MW
119e21'10
MW119e16'
06MW
119e21'56
MW119e47'20
MW119e47'
05MW
Well
depth
(feet
below
land
surface)
11 12294 14 12
360
150 13 17 400
400
282
230
196
145
500 15 Sp Sp 18 130
128
180
102 82 120 68
133
280
132
200 96 305
200
150
389
110
268
155 96
Gross
radioactivity
Use of
well O O D O O D D O O D P D D D P P O U U O P D P P D I O D D D D D P 0 D I P P D D
Lithology
ofaq
uife
r
Basi
n fill
Basi
n fill
Basalt
Basin
fill
Basi
n fill
Met a
sed
Basi
n fill
Basin
fill
Basin
fill
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fi
llBa
sin
fill
Basin
fill
Ande
site
Basi
n fill
Volc
anic
Volcanic
Basin
fill
Basi
n fi
llBasin
fill
Basin
fill
Basi
n fill
Basin
fill
Basin
fill
Basi
n fill
Basin
fill
Basi
n fill
Basin
fill
Basi
n fill
Basin
fill
Basi
n fill
Basin
fill
Basi
n fill
Basi
n fill
Basin
fill
Date
06-22-88
06-22-88
08-02-88
03-09-89
06-15-89
06-15-89
09-2
1-89
09-25-89
07-26-88
07-26-88
07-26-88
09-30-89
01-13-89
09-21-89
09-26-89
09-26-89
02-01-89
06-08-88
08-30-88
06-02-89
06-07-89
06-23-88
12-01-88
02-24-89
12-01-88
05-02-89
09-19-89
12-08-88
06-23-88
11-29-88
09-27-89
09-20-89
09-27-89
01-31-89
12-05-88
02-01-89
01-10-89
10-02-89
01-24-89
01-11-89
08-27-87
08-27-87
Radon-
222,
tota
l(p
Ci/L
)
380
360
490
2,200
490
550
180
580
480
390
340
160
890
340
460
840
1,00
0
360
1,100
970
250
310
1,20
01,800
1,00
0690
970
580
190
320
620
750
750
770
750
960
480
430
810
630
Rado
n-
Alpha
222
(Jlg/L
(pCi
/L)
as U)
190
180
430 6.
2
_
_
__1.4
36 24
2.2
5.0
3.9
2.5
2.
3
6.7
31
--
2.2
2.6
6.3
-,
-.-. 2.5
3.3
6.3
2.6
__
_ 271.
6460
1,20
0
Beta
(pCi
/Las
Sr/
Y-90)
230
250
210 16 __ _4.7
20 20
8.6
18 3.8
2.9
3.
0
9.5
21 ~
4.2
14 13 5.
45.2
10 6.7
_9.3
4.2
Radi
um-
Uranium
226
(Jlg
/L(pCi/L)
as U)
160
45
0.70
8.3
_
____
__
.70
28
2.1
4.
0
2.7
1.5
0.04
1.2
1.1
4.1
23
1.5
1.6
6.8
_
_<.
401.
93.
71.
6
_
__8.8
1.0
TABL
E 2. ft
ad
ioji
ucli
d*
aji
aly
«««
mnd
oth
*r
info
rmati
on
fo
r tr
«ll
«
and
mpr
ingm
«a
jqp
l«d
in
part
* of
Nev
ada,
1986-8
9 C
onti
nu
ed
CO I
Site location
Map
No.
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
Local
,identification
104
N15 E19
104
N15 E1
910
4 N15 E19
104
N15 E19
104
N15 E1
9
104
N15 E1
910
4 N15 E19
104
N15 E1
910
4 N15 E2
010
4 N15 E20
104
N15 E2
010
4 N15 E2
010
4 N15 E2
0
104
N15 E2
010
4 N15 E20
104
N15 E20
104
N15 E2
010
4 N15 E2
010
4 N15 E2
010
4 N15 E2
0
104
N15 E20
104
N15 E20
104
N15 E2
010
4 N15 E2
010
4 N15 E2
0
104
N15 E20
104
N15 E2
010
4 N15 E2
010
4 N15 E2
010
4 N15 E2
0
104
N15 E2
010
4 N15 E2
010
4 N15 E20
104
N15 E2
010
4 N15 E2
0
104
N15 E2
0
104
N15 E2
010
4 N15 E2
010
4 N15 E2
0
104
N15 E20
02DDDC1
12CDBD1
12DADD2
13CDBB1
23CCBB1
2 8 AD AD 1
33DDDD1
35BDAA1
01CCBC1
03CCCB1
05ABDA1
06DAAC2
06DDAC1
07CACB1
07DAAC1
07DDBB1
08BAC1
08BDBB1
09DACC1
09DBD1
10ADDA2
10BDDA1
16BBBB1
16BCBC1
17AADA1
17AADC1
17AADC4
17AADC5
17ABD1
17BACC1
17CABA1
17CABA2
17CABA3
17CABA4
17CAD1
17DBBD1
17DDDA1
18ACAA1
18DCA1
20BBDD1
Lati
tude
39°11'13"N
39°10'17"N
39*10'35"N
39°09'38"N
39*08' 46"N
39°08'14"N
39*06' 47"N
39°07'20"N
39°11'08"N
39ell'23
MN
39°12'04"N
39*11'33"N
39°11'20"N
39°10'36"N
39°10'37"N
39*10'31"N
39°10'07"N
39°11'04"N
39*10'39"N
39*10'39"N
39°10'58"N
39*10'53"N
39*10'05"N
39*09'43"N
39°10'10
MN
39*10'14"N
39*10'08"N
39*10' 08"N
39°10'10MN
39°10'13"N
39*09'57"N
39*09'57"N
39*09'57"N
39*09'57"N
39*09'43"N
39*09' 50"N
39*09'33"N
39°10'05MN
39*09'45"N
39*09'15"N
Longitude
119°48'19MW
119*47'55-W
119°47'15"W
119*48'00MW
119*49'17"W
119°50'36"W
119*50'05"W
119°49'11"W
119*42'07"W
119*43'53MW
119
e45'
14BW
119
e46'17"W
119°46'17
MW
119°47'00
MW119
e46'15
BW
119*46'23"W
119*46'53"W
119
e45'48"W
119044'02
BW119°44'30
BW
119°42'46"W
119*43'25"W
119*45'00"W
119*45'00"W
119*45'04"W
119°45'07"W
119*45'06"W
119*45'06"W
119°45'21"W
119*45' 50"W
119*
45' 48"W
119*45'48"W
119*45'48"W
119*45'48"W
119*45'38"W
119*45'29"W
119*45'06"W
119*46'57"W
119*46'28"W
119*45'55"W
Well
depth
(feet
below
land
surface)
250
195
470
250 Sp Sp
290 Sp
455 69
120
455 18 92 21
470 30
227 96 11
1,250 18 21 30
300
700 29 58 19 19 35 30 25 20 21 820
604 21 20 16
Gross
radioactivity
Use
of
Lith
olog
y of
well
aquifer
P D P D L U P L P D D P 0 D 0 P 0 P D 0 P 0 0 0 P P P P 0 0 0 0 0 0 0 P P 0 0 0
Granite
Basin
fill
Basi
n fill
Granite
Allu
vium
Granite
Granite
Allu
vium
Granite
Basin
fill
Basi
n fill
Basi
n fill
Basin
fill
Basin
fill
Granite
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Granite
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fill
Basin
fill
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Date
09-07-88
09-07-88
09-01-87
08-27-87
05-11-88
09-08-88
06-02-89
05-31-89
08-11-88
06-01-89
08-24-88
08-30-88
08-17-88
05-25-88
03-09-89
06-02-89
09-04-87
03-10-89
08-27-87
05-11-88
02-27-89
09-02-88
09-20-88
01-20-89
08-24-88
03-07-89
06-02-89
02-24-89
03-10-89
09-09-87
07-12-89
09-03-87
09-02-87
05-31-89
01-12-89
03-03-89
03-03-89
03-03-89
03-06-89
02-28-89
09-10-87
05-13-88
09-08-88
03-08-89
02-27-89
06-02-89
02-24-89
Radon-
222,
total
(pCi/L)
14,000
14,000
4,300
4,400
4,900
3,600
14,000
<80
2,300
220
2,600
1,900
2,000
2,400
2,300
1,200
3,10
04,100
2,500
4,000
11,000
2,800
2,100
1,100
630
660
590
2,400
1,500
1,500
1,500
3,200
1,400
5,100
3,200
2,700
2,400
2,700
2,600
1,800
2,400
2,600
1,700
1,500
6,800
5,100
1,100
Radon-
Alpha
222
(jlg
/L(p
Ci/L
) as
U)
41 44
_ 123.
5
__1.8
_5.
452
3.5
19
__
__
_ _
__ 13
_ 38 21
1.1
__
_
__
__
_
_
__
__
__
_
_
__ 161.
1
_
_
Beta
(pCi
/L
as Sr
/Y-90)
21 21 _8.1
3.6
__1.8
_3.8
28
2.3
9.9
_ _ ~ __ 11 _ 197.8
~
5.9
_ _ __ -- ___ __ _ ~ _ _ _ -- __8.9
1.9
_
Radium-
226
(pCi
/L)
__ _ _ __ _
0.15 __ __ _ __ _ ___ ~ _ _ _ _ _ _ ~ ___ __ ~ ___ ~ __ __
Uranium
(Jtg
/Las
U)
39 _ _ _ 131.6
29
1.2
2.7
56
2.2
25 ___ _ 19 37 12
.5 _ _ _ ~ __
__ _ _ ~ ___ _ _ 191.
1 _
TABL
E 2. R
adlo
nu
c2id
« a
n*
ly*
»f
and
oth
mr
info
rma
tio
n fo
r w
mllm
m
nd m
prin
gm
*a
op
l»d
in
pa
rt*
of
, 1
98
6-8
9 C
onti
nu
ed
>£> I
Site location
Map
No.
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
Local
7identification
104 N15 E2
0 20CACC1
104
N15 E2
0 20DBBD1
104
N15 E2
0 21BACC1
104
N15 E2
0 21CABA1
104
N15 E20 28CCBD1
104
N15 E2
0 29BBDB1
104
N15 E2
0 29BCAC1
104
N15 E2
0 31BABA1
104
N15 E2
0 31DCC1
104
N15 E2
0 32BBDA1
104
N16 E1
9 36DAAC1
104
N16 E2
0 31ACCB1
105
Nil E2
0 06BDA1
105
Nil E21
35ABB1
105
N12 E1
9 10DCCA1
105
N12 E1
9 13BAAB1
105
N12 E1
9 15DBAA1
105
N12 E1
9 23DDD1
105
N12 E19
24CCAA1
105
N12 E1
9 36DADA2
105
N12 E2
0 04ADA1
105
N12 E2
0 04BAB1
105
N12 E2
0 06ADDD1
105
N12 E2
0 06
DB1
105
N12 E2
0 09BCAD1
105
N12 E2
0 11ADD1
105
N12 E2
0 15ADD1
105
N12 E2
0 16CCD1
105
N12 E2
0 17CCD1
105
N12 E2
0 20ABAA1
105
N12 E2
0 24ADCC2
105
N12 E2
0 32DBBD1
105
N12 E21
18CAB1
105 N13 E1
9 02AD1
105 N13 El
9 09ADCA1
Latitude
39°08'52"N
39°08'55"N
39e09'15"N
39°08'57"N
39°07'51"N
39°08'02"N
39°08'03"N
39°07'43"N
39°06'55"N
39°07'33"N
39°12'24"N
39°12'34"N
38°50'49"N
38°46'45"N
38°54'41"N
38°55'22"N
38°54'10"N
38°52'55"N
38°53'03"N
38°51'22"N
38°56'04"N
38°56'21"N
38e55'54"N
38°55'46"N
38*55'12"N
38°55'09"N
38°54'14"N
38°53'45"N
38°53'52"N
38°53'42"N
38°53'21"N
38°51'25"N
38°54'12"N
39°01'10"N
39°00'21"N
Longitude
119*45'46"W
119°45'29"W
119°44'46"W
119°44'34"W
119°44'54"W
119°46'17"W
119°45'42"W
119°46'31"W
119°46'31"W
119°45'55"W
119°47'21"W
119°46'40"W
119°46'45"W
119°35'33"W
119°49'55"W
119°48'13"W
119°49'45"W
119°48'23"W
119°48'02"W
119°47'15"W
119°43'56"W
119'44'45"W
119°46'14"W
119°46'37"W
119*44'48"W
119°41'48"W
119e42'54"W
119°44'51"W
119°45'54"W
119°45'17"W
119°40'50"W
119°45'28"W
119°40'14"W
119°48'30"W
119°50'43"W
Well
depth
(feet
below
land
surf
ace)
100 14 18 68
152
120
560
344
160
590 91
289 70 115
107 27
300
141
132 17
300
300
460
120
350
125
375
176 91
450
145 15 500
180
Gross
radioactivity
Radon-
Use
ofwell
D O O D D P P D P P P D D D D O P D D O P P I D I D P N D P D O N I D
Lithology
of
aquifer
Basi
n fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fill
Basin
fill
Basin
fill
Granite
Basin
fill
Basin
fill
Granite
Basin
fill
Basin
fill
Basin
fill
Granite
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basin
fill
Basi
n fill
Basin
fill
Basin
fill
Basi
n fill
Basin
fill
Basi
n fill
Basin
fill
Basin
fill
Basin
fill
Basi
n fill
Basi
n fill
Basin
fill
Date
08-1
8-88
02-28-89
05-31-89
03-07-89
05-31-89
08-26-88
08-19-88
08-16-88
05-24-88
05-24-88
08-11-88
08-15-88
05-24-88
08-12-88
08-15-88
07-28-88
08-20-87
05-04-88
08-23-88
07-07-87
08-20-87
08-20-87
08-12-86
07-07-87
08-20-87
08-20-87
08-20-87
06-16-88
07-11-88
07-06-87
08-23-88
08-23-88
07-21-88
07-25-88
05-04-88
07-14-88
08-20-87
08-24-87
07-21-88
08-10-88
08-24-87
07-07-87
08-24-87
07-07-88
07-07-88
07-30-86
07-07-87
09-20-88
08-18-86
08-27-87
222,
total
(pCi/L)
1,300
1,400
1,100
1,000
700
1,300
690
830
1,200
1,200
930
2,300
1,100
2,500
7,100
3,200
7,100
550
5,600
700
840 940
860
1,200
1,300
760
1,100
_ 1,400
1,500
_1,800
1,70
0 70
0
Radon-
222
(pCi/L)
__ _ __
220 _
3,600
10,100
7,200
5,020
3,610
5,500
2,700
480 440
530
800
763
<100 601
593
704
380
Alph
a (H
g/L
as U)
3.1
144.5
1.4
2.7
2.9
6.6
4.3
2.7
42 184.
0 2.
2
5.3
.8
1.4
_4.
94.9
7.2
1.1
2.0
<.4
_ .6
7.9
__ 1.
71.
8 1.
6
Beta
(pCi
/L
as Sr/
Y-90)
3.6
__ _5.6
2.6
1.3
2.1
2.4
3.1
3.6
2.5
18 174.8
2.7
5.0
__ 1.5
14 __5.0
5.5
4.2
2.9
3.6
2.0
__ 2.0
5.5
__ 2.
22.3
2.
7
Radium-
226
(pCi/L)
_ ___ __ __ _ __ __
0.56_ _ _ _ _ __ __ __ __ .06_ .09
Uranium
(Hg/
Las U)
1.2
_ _ __ 8.5
2.8 .6
2.7
_ 5.9
2.8
3.2
38 14 _.8
5.5
_ _ _ _ _ 3.6
<.4
_ 3.2
5.7 .80
1.5 .50
__ .5
06.
1_ __.5
0 _ <.40
CT_ 3 U
IO IO IO M ~J O> ON ONo \o a> -i
o o o oon on on onZ Z Z Z
M w w w N> 10 10 10 O O O O
O CO W 10 NJ £» M OO DO) O O O O O O O O O OO M M MM
CO CO CO COto to vo vo
e e o eM 0 0 0
M 00 VO 10: s s s 2222
VO VO -> VO e e o e
NJ U ON *>* % * *
00 10 VO 10 « Z Z «££ £ a
M M NJNJ o on ooUl O -J 00
Z O H O
00 03 03 01 PI Dl W 1 « MH- 1 H- H- 3 33
l-tl l-tl l-tl H- 1 H- I-1 Ml 1 M 1
0000 GO GO 00 GO
1 1 1 1
N> ONCn
o onZ
4 E20 18ABAB1 39*05'
CO s
Z
VOe
ON%
onz
£
fe10on
O
09Dl MH-3
i-ti H- 1 1
0 O 0 0 ^J OO OO OO
OOOOOOOOOOOOOOOO OO-JOO-JOO-J-JCT,
NJ 00 VOA i on I *> I I I0 1 O 1 0 1 1 1
ifti 10 » on ON1 ON 1 01 M ON Mi o i o i on o o
1 1 III1 1 ON 1 1 1
ON '-J M
ft 1 CO 1 NJ I 1 I
J at o
1 1 1 1 1 1 1 0I I 1 1 I I I on
A 1 A 1 1 1 1 1 1 1 1 1 1 1 fe »0 O
10 10 NJ O ON ONon *» to
o o oon on onZ Z Z
WWW NJ (0 M 0 0 VO
M O 10-J Ul Ul §03 CD
030 0 > O > 09 OJ M M NJ
CO CO CO VO VO VO
o o o
ON NJ ^J
Z Z Z
VO VO VO
on on ~J
itk £» O
£ £ £
NJ NJ VO M -J O 00
O O O
n on 1-1 01 1 01 M 1 3 H-
H-3 rt (1) i-ti
H-
NJ 10 ON ON NJ M
O Oon on Z Z
w w M 10 VO M
M CO A CO 03 O 03 O 0 0 M O
M
CO CO VO 00
o on
-J ON
z z
VO VO
VO -J
CO NJ
£ £
O 10
o o
OJ 03 01 01in in3 3
ooooooooooOOOOONOO^JON^JOOONCn
1 1 1 1 1 1 1 1 1 1
00000000000000000003 -J-J-JOOOOOO-JCTiOOOO
10
CO NJ 00 -J 00 OB 1 1 M O 00 VO 1 1 NJ ON 1 1 O O O O 1 IOO
A A MM ON OOo o i I I i on vo I lO O 1 1 1 1 00 00 1 1
III CO IIII i i ON on 10 l l i ON
NJ M IO
III 10 III 1 1 1 CO M NJ 1 1 1 Jk
I-1 NJ CO
CO 1 1 1 & ON M 1 1 1 COIII* 1 1 1
Co on ON
10 NJ 10 NJ NJo> on en on on o vo oo ~J 01
0 0000on on on on on Z Z Z Z Z
W fl W W W10 NJ (0 10 10 M O O O O
CO CO CO (0 10CO i& f-> VO VO OJ > OJ O 09o o > o o > o > oo 09 M > M O
CO CO CO CO CO 00 00 00 00 00
on on on on on
CO £» (0 VO NJ
z z z z z
VO VO VO to to
oo co o> on on
CO OO Ul -J OO
S S S S S
u> o co o oo
O O M t> O
0) 0) Bi 0) 0) in in in in in3 3333
OO 0 0 0 0 0 ^J 00 00 00 ^J 00 00
kO -J OO -J OO -J -J
>- *
on o ~JOJ 1 0 1 H* 1 1 O 1 O 1 O 1 1
CO -J U Al t-1 l oo i on oo1 0 1 0 1 00
II 1 II 1 1 CO 1 M 1 1
fe »
1 1 NJ 1 NJ 1 1
vo on
1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 CO 1 M 1 1
0 M
10 IO 10 (0 10on on on on on on A co 10 M
o o o o oon on on on onZ Z Z Z Z
w w w w w NJ N} IO NJ (O 0 0000
NJ IO M M M CM ON VO VO ~J03 > O 03 OJ O 03 > > O > 09 09 O O O 09 O O M
CO CO CO CO CO 00 00 00 00 00
on on on on on-J 00 00 00 to
£» >- 10 NJ *»
Z Z Z Z Z
to vo vo vo vo
NJ IO O\ ON On
vo on on en oo£ £ £ £ £
O O ON 00 ON
O O O O M
01 01 Dl 01 01M in in in in3 3333
000000 kO 00 OO 00 -J 00
00 ^J ON O3 00 00
>-
00 10 A ~J ON 1 1 O 00 VO O 1 1 O O O
A ON 1 *. -J 1 1 | 1 0 *> 1 1 1
1 1 10 10MI i on oo 01 en M
1 1 M M ft 1 i on NJ co0 ~J
1 1 0 1 1 11 1 -J 1 1 1
NJ NJ10 i i ON M on0 ON
IO IO IO (O IO
O to 00 *4 O>
o o o o o on on on on onZ Z Z Z Z
www w w (O (O IO IO IO O O O O O
o o o o o oo oo -J on co 8O O O O
> > 00> > o o o 09 M O M OJ
CO CO CO CO CO VO to VO to VO
o o o o o o o o o o
o -J ui on ooz z z z z
£££ S£on on ON on vo
M VO M OO *>
£ £ £ S £
-J Ul O O J»
o o o o o
09 09 03 03 09 01 01 01 01 01in in in in in333 33
0 0 O 0 0 Ooo j* -j -j <n -J l l 1 l l l
vo ~J vo vo oo oo
M
on *» on ~j ^ onO ON O O ON ON 0 0 O 0 0 O
1 1 1 1 1 1
1 1 1 1 M M
ON OO
1 1 1 1 1 1 1 1 M ON
-J -J
1 1 1 1 1 1
1 1 1 1 A
OO » 0 0
IO
on
o enZ
wNJo o10r>CO 09M
CO VO
ot->
ON
Z
VO
NJ
» CO
£
ON
CO 01 in
3
O Ooo oo
oo oo~j en
l l l l
co onNJ Wo ~J
l l
l i
1 01 £>
10
£»
oonZ
WMvoNJon8o (-
COooon~j
ON
Z
vo
-J
on
£
o
M
03 01 M
3
O-J
NJ
IO IO IO
CO NJ M
O O Oon on on Z Z Z
WWWM M Mvo vo voM M M CO 10 Oco co o O OJ 09 0> OBMOM
M
CO CO CO OO to VO
on o o vo o o
Ul -J Ul
Z Z Z
vo vo vo
OO CO O
CO 0 0 CO ~J M
£ £ £
o o on
O M 1
09 09 09 Dl 01 Dl M'tt in
333
O O O O-j oo <n -J till0 M 0 0
OO ^J ON OO ^J
M
ON A VO 1 1 O 1 0 1 1 0 1
M
on on M1 0 ifc 1 CO 1 *> ON 1 0
10 1 1 X. |
OO CO
1 1 1 CO 1 1 CO 1
OO VO
o1 1 0 1 11 1 -J 1 1
A NJ 1 1 0 1
0 !b o
We
Site location de
(f be
Map Local . la
No. identification Latitude Longitude sur
it. 3 M 16 TJ 1- Oi a 0 fl> r^ M8 *rt:r
* a CD O 10Mill 161
0, £>a <f
Grossradioactivity
Radon- Beta
lology 222, Radon- Alpha (pCi/L Radium- Uranium >f total 222 Oig/L as Sr/ 226 (|ig/L
lifer Date (pCi/L) (pCi/L) as U) Y-90) (pCi/L) as U)
TABLE 2. Radionaclide analyses and other information for wells and springs sampled in parts of Nevada, 1986" -Continued
TABLE 2. Padionuclid* analy««« and other information for tr
ail*
and spring* «aapl«d in part* of Navada, 1986-89 Continued
Map
No.
271
272
273
274
275
276
277
278
Site
location
Loca
l -
identification
105
N15
E20
106
N10
E22
106
N10
E22
106
N10
E22
230
S13
E47
230
S13
E47
230
S13
E47
230
S13
E47
33CC
DD1
15DC
B1
29CADA1
32BAAB2
26DC
CB1
35ACBA1
35BA
D135BDBA1
Latitude
39e06'53"N
38°43'33
HN
38e41'56-N
38e41'
36"N
36e46'15
HN36°45'57"N
36e45'57-N
36e45'56
HN
Longitude
119e44'
43"W
119e3
0'17
"W
119e32'
33"W
119e32'39
HW
116e4
1'24
HW116e41'
18"W
116e4
1'30
HW116e41'
35"W
Well
depth
(feet
belo
wland
surface)
235 183
105
307
326
575
404
Use of
well P P D D O O O O
Lith
olog
yof
aquifer
Gran
ite
Basi
n fill
Basin
fill
Basi
n fill
Basi
n fill
Basi
n fill
Basi
n fill
Date
08-0
1-88
08-04-86
08-1
9-87
08-1
9-87
08-18-87
08-01-86
08-1
9-87
08-19-87
08-15-89
08-1
7-89
08-1
4-89
08-17-89
Radon-
222,
tota
l(p
Ci/L
)
1,700 __ 430
320
410
460
Gros
s ra
dioa
ctiv
ity
Beta
Radon-
Alph
a (p
Ci/L
222
(Jig/L
as Sr
/(pCi/L)
as U)
Y-90
)
3.0
2.5
339
480
301
1 410
836
.1450
365
Radi
um-
Uranium
226
(ng/
L(pCi/L)
as U)
2.5
0.06
_
_
The
local
site
-ide
ntif
icat
ion
system used in this report is based on an index
of hy
drog
raph
ic ar
eas
in Nevada (R
ush,
19
68)
and
the
rectangular
subdivision
of th
e public lands
referenced to the
Mount
Diablo ba
se line and meridian.
Each si
te designation
consists of
fo
ur un
its:
Th
e first
unit is
th
e hydrographic ar
ea nu
mber
. The
second unit is the
township,
preceded by
an N
or S to
indicate lo
cati
on
nort
h or south of t
he base line.
The
third
unit is the
rang
e, preceded by
an E to
in
dica
te location ea
st of th
e meridian.
The
four
th
unit
consists of
th
e section
number and
letters
desi
gnat
ing
the
quarter
sect
ion,
quarter-quarter
sect
ion,
and
so on
(A,
B, C,
and
D indicate th
e northeast, northwest, southwest, and
southeast
quarters,
resp
ecti
vely
), followed by
a
number in
dica
ting
th
e sequence in
whic
h th
e si
te was
reco
rded
. Fo
r ex
ampl
e, si
te 105
N12
E20
04ADA1 is in Carson Va
lley
(hydrographic
area
10
5).
It is
the
first
site
re
cord
ed in
the
northeast
quar
ter
of the
southeast
quar
ter
of the
northeast
quarter
of section
4, To
wnsh
ip 12 No
rth,
Range
20 Ea
st,
Mount
Diablo base li
ne and
meri
dian
.
REFERENCES CITED
Brutsaert, W.F., Norton, S.A., Hess, C.T., and Williams, J.S., 1981, Geologic and hydrologic factors controlling radon-222 in ground water in Maine: Ground Water, v. 19, no. 4, p. 407-417.
Cothern, C.R., 1987, Development of regulations for radionuclides indrinking water, in Graves, Barbara, ed., Radon, radium, and other radioactivity in ground water: Chelsea, Mien., Lewis Publishers, p. 1-11.
Cothern, C.R., Lappenbusch, W.L., and Michel, Jacqueline, 1986,Drinking-water contribution to natural background radiation: Health Physics, v. 50, p. 33-47.
Horton, T.R., 1985, Nationwide occurrence of radon and other natural radioactivity in public water supplies: U.S. Environmental Protection Agency report 520/5-85-008, 208 p.
Lanctot, E.M., Tolman, A.L., and Loiselle, Marc, 1985, Hydrogeochemistry of radon in ground water: Eastern Regional Ground Water Conference, Association of Ground Water Scientists and Engineers, National Water Well Association, Portland, Maine, July 1985, Proceedings, p. 66-85.
Lowry, J.D., Hoxie, D.C., and Moreau, Eugene, 1987, Extreme levels of Rn and U in a private water supply, in Graves, Barbara, ed., Radon, radium, and other radioactivity in ground water: Chelsea, Mich., Lewis Publishers, p. 363-375.
Otton, J.K., Zielinski, R.A., and Been, J.M., 1985, Uranium inHolocene valley-fill sediments, and uranium, radon, and helium in waters, Lake Tahoe-Carson Range area, Nevada and California: U.S. Geological Survey Open-File Report 85-389, 30 p.
Prichard, H.M., and Gesell, T.F., 1977, Rapid measurements of Rnconcentrations in water with a commercial liquid scintillation counter: Health Physics, v. 33, p. 577-581.
Rush, F.E., 1968, Index of hydrographic areas in Nevada: Nevada Division of Water Resources, Information Report 6, 38 p.
Thatcher, L.L., Janzer, V.J., and Edwards, K.W., 1977, Methods for determination of radioactive substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water-Resources Investigations, Book 5, Chapter A5, 95 p.
Wanty, R.B., and Schoen, Robert, 1991, A review of the chemicalprocesses affecting the mobility of radionuclides in natural waters, with applications, in Gundersen, L.C.S., and Wanty, R.B., eds., Field studies of radon in rocks, soils, and water: U.S. Geological Survey Bulletin 1971, p. 183-194.
-17-