EPA-520/6-74-006
  ENVIRONMENTAL SURVEYS OF THE
    URANIUM MILLTAILINGS PILE
      AND SURROUNDING AREAS
        SALT LAKE CITY, UTAH
U.S. ENVIRONMENTAL PROTECTION AGENCY

    Office of Radiation Programs
  m

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     ENVIRONMENTAL SURVEYS OF THE URANIUM MILL

        TAILINGS PILE AND SURROUNDING AREAS,

               SALT LAKE CITY, UTAH
                  DAVID L. DUNCAN
                 GREGORY G. EADIE
                   AUGUST  1974



     URANIUM MINING AND MILL TAILINGS PROJECT

OFFICE OF RADIATION PROGRAMS—LAS VEGAS FACILITY

       U.S. ENVIRONMENTAL  PROTECTION AGENCY

                LAS VEGAS, NEVADA

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                         FOREWORD
     The Office of Radiation Programs of the Environmental
Protection Agency carries out a national program designed
to evaluate population exposure to ionizing and non-ionizing
radiation, and to promote development of controls necessary
to protect the public health and safety.

     Within the Office of Radiation Programs, the Las Vegas
Facility conducts in-depth field studies of various radia-
tion sources  (e.g., nuclear facilities, uranium mill tail-
ings, and phosphate mills) to provide technical data for
environmental impact statement review as well as needed
information on source characteristics, environmental trans-
port, critical pathways for population exposure, and dose
model validation.

     This report summarizes the results of several field
studies conducted between 1967 and 1973 in Salt Lake City,
Utah, at and  around the inactive uranium mill tailings site
formerly operated by the Vitro Corporation of America.

     Readers  of this report are encouraged to inform the
Office of Radiation Programs of any omissions or errors.
Comments or requests for further information are also invited,
                            W. D. Rowe, Ph.D.
                      Ve.pu.ty k&t>4.&ta.nt
                           ^on.  Rad-iat'Lon
                             iii

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                        ABSTRACT
     At the request of EPA's Region VIII, environmental
surveys have been conducted for the Utah State Division
of Health's Occupational and Radiological Health Section
at the former Vitro Corporation uranium mill and in the
Salt Lake City, Utah, area.  The surveys included measure-
ment of external gamma radiation and airborne radioactivity.
The results of the surveys indicated that:  the external
gamma radiation levels on the tailings area exceed recom-
mended exposure limits for individuals in the general popu-
lation; ambient levels of radon over the pile and in
structures built immediately adjacent to the tailings pile
are above the currently recommended concentration for the
general population; the working level exposure in the adja-
cent buildings exceeds existing recommendations; tailings
material has been removed from the Vitro site by persons and
used around dwellings and businesses; and tailings material
has become windborne and deposited against dwellings and
structures in the vicinity.  For general public areas (at
distances greater than one-half mile from the tailings pile)
the measured radon levels for the pile were not distinguish-
able from natural background levels and were found to be
within current guides.

     On June 7, 1974, the U.S. Environmental Protection Agency
recommended to the State of Utah that:

     1.  The State of Utah establish the necessary regula-
tions to effect the disposition and control of radioactive
mill tailings.  These should not rule out the possibility
of some acceptable use for any given closed mill site.

     2.  The Vitro uranium mill tailings pile should be prop-
erly stabilized to prevent migration of the tailings into
the environment and public ingress to the area should also
be prevented.  The pile should be graded,, covered, properly
fenced, and controlled to prevent any migration of the tail-
ings into the surrounding environs by wind, water erosion,
or removal of tailings for unauthorized purposes.

     3.  The State of Utah consider possible remedial actions
for the businesses located on the west side of the Vitro uran-
ium mill tailings pile along South 900 West Street.
                             v

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                     ACKNOWLEDGMENTS
     Grateful appreciation is expressed by the Environmental
Protection Agency to the many individuals of the Utah State
Division of Health; U.S. Atomic Energy Commission; Lucius
Pitkin, Inc.; and EPA's Region VIII and National Environ-
mental Research Center—Las Vegas.  Without their help,
these studies would not have been possible.  Special thanks
go to Messrs. Dennis Dalley, Louis Bunce, Blain Howard,
Jeff Throckmorton, Paul Smith, Jon Yeagley, George Boysen,
Charles Fitzsimmons, Dwayne Rozell, Robert Snelling, and Fred
Johns and also to Mrs. Lynn Hughes and Ms. Daphne Prochaska.
                            Vll

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                         CONTENTS


                                                         Page

FOREWORD	iii

ABSTRACT	  v

ACKNOWLEDGMENTS	vii

LIST OF FIGURES	  xi

PURPOSE	  1

LOCATION AND DESCRIPTION	  1

ENVIRONMENTAL SURVEYS	  4

  Sampling procedures	  4
    External gamma radiation	  4
      Field survey instruments	  4
      Thermoluminescent dosimeters  (TLD's)	  4
      Mobile unit gamma radiation scanning surveys	  4
      Field personnel gamma radiation screening surveys..  5
    Air Sampling	  6
      Five minute radon in air sample	  6
      Integrated radon in air sample	  8
      Five minute radon progeny in air sample	  8
      Integrated radon progeny in air sample	  8
    Meteorology	 10
  Analytical procedures	 10
    Radon concentrations	 10
    Radon daughter concentrations	 10
    Integrated working levels	 10

RESULTS —1967 to 1973	 11

  USPHS--1967 to 1968	 11
  USPHS Surveys—November 1970	 11
  EPA Gamma Scanning Surveys—April to September 1972.... 16
  EPA Gamma Screening Surveys—August to October 1972.... 16
  Radon and Radon Daughter Evaluation—May 1973	 16
                           IX

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DISCUSSION OF RESULTS	 33

  Gamma Radiation Exposures on the Tailings Pile	 33
  Radon and Radon Daughter Concentrations	 3^
  Gamma Radiation Exposures in the Salt Lake Valley...... 40

RECOMMENDATIONS	 43

APPENDIXES	 46
REFERENCES,
                                                         120

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LIST OF FIGURES
                                 9

                                12



                                13
                                                    Page

FIGURE 1   Vitro Uranium Mill Tailings Piles:         2
           Salt Lake City, Utah

FIGURE 2   Indoor Radon Study--Gamma Screening        7
           Form

FIGURE 3   Radon and Radon Daughter Decay Scheme

FIGURE 4   Location of Radon Sampling Stations in
           Salt Lake City, Utah   (1967-1968 PHS
           Study)

FIGURE 5   E-500B Gamma Radiation Measurement in
           mR/h:  Salt Lake City, Utah: Vitro
           Uranium Mill Site:  Southeast Tailings
           Pile  (3 ft. reading/ground reading)

FIGURE 6   E-500B Gamma Radiation Measurement in     14
           mR/h:  Salt Lake City, Utah, Vitro
           Uranium Mill Site:  Southwest Tailings Pile
            (3 ft. reading/ground reading)

FIGURE 7   E-500B Gamma Radiation Measurements in    15
           mR/h:  Salt Lake City, Utah, Vitro
           Uranium Mill Site:  Northwest Tailings
           Pile  (3 ft. reading/ground reading)

FIGURE 8   TLD Gamma Radiation Measurements in       17
           mR/h:  Salt Lake City, Utah, Vitro
           Uranium Mill Tailings Pile

FIGURE 9   Gamma Survey Map, Suburban Sewage         18
           Treatment Plant, Salt Lake City, Utah,
           November 1970  (NE-148A reading in
           yR/h) Ground Floor Main Building

FIGURE 10  Gamma Survey Map, Suburban Sewage Treat-  19
           ment Plant, Basement Main Building,
           Salt Lake City, Utah, November 1970
            (NE-148A readings in yR/h)
       XI

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                    LIST OF FIGURES

                                                    Page
                                                    _«•«£•—

                                                     9 n
FIGURE 11  Gamma Survey Map, Suburban Sewage         ^
           Treatment Plant, West Digester,
           Salt Lake City, Utah, November 1970
            (NE-148A readings in yR/h)

FIGURE 12  Gamma Survey Map, Suburban Sewage         21
           Treatment Plant, East Digester,
           Salt Lake City, Utah, November 1970
            (NE-148A reading in yR/h)

FIGURE 13  Gamma Survey Map - Area Surrounding       22
           the Vitro Uranium Mill and Tailings
           Pile Site, Salt Lake City, Utah

FIGURE 14  Gamma Survey Map, Location 42325          23
            (Vacant Lot) Salt Lake City, Utah

FIGURE 15  Gamma Survey Map, Location 42326,         24
           Salt Lake City, Utah

FIGURE 16  Gamma Survey Map, Location 42327,         25
            (Vacant Lot) Salt Lake City, Utah

FIGURE 17  Gamma Survey Map - Location 42328,        26
           Salt Lake City, Utah

FIGURE 18  Gamma Survey Map, Location 42329,         27
           Salt Lake City, Utah

FIGURE 19  Gamma Survey Map - Location 42330,        28
           Salt Lake City, Utah

FIGURE 20  Gamma Survey Map - Location 42331,        29
           (Vacant Land West of Tailings Pile)
           Salt Lake City, Utah

FIGURE 21  Gamma Survey Map - Location 42332         30
           (Vacant Land North of Tailings Pile)
           Salt Lake City, Utah

FIGURE 22  Air Sampling Locations - May 1973 -       32
           Salt Lake City, Utah
                          xn

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                     LIST OF FIGURES
                                                    Paqe
FIGURE 23  TLD Integrated WL Exposure - Salt Lake    34
           City, Utah, May 1973

FIGURE 24  Radon and Radon Daughter Concentration    35
           (pCi/1), Salt Lake City, Utah,  (Location
           75001) - May 1973

FIGURE 25  Radon and Radon Daughter Concentration    36
           (pCi/1), Salt Lake City, Utah,  (Location
           75002) - May 1973
                            Kill

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                            PURPOSE
     T'he following report summarizes the results of several
environmental surveys conducted between 1967 and 1973 in
Salt Lake City, Utah, at the inactive uranium mill site and
in the surrounding area.
                   LOCATION AND DESCRIPTION
     The uranium mill in Salt Lake City, Utah, was operated
by the Vitro Corporation of America from May 1951 to January
1964.  As of July 1970, the inactive uranium mill tailings
pile occupied about 107 acres of land, bordered on the north
by Mill Creek, on the east by the railroad, on the south by
3300 South Street, and on the west by South 900 West Street.
As shown in figure 1, the area of the mill site can be consid-
ered as a square with four quadrants.  Three of the quadrants
are covered with tailings material and the northeast quadrant
is occupied by the Salt Lake City Suburban Sewage Treatment
Plant  (SSTP).  A portion of the land between the railroad and
the east boundary of the SSTP is also covered with tailings.

     The original uranium mill was situated in the southeast
section, but the buildings have now been completely demolished.
All that remains of the old mill are some rubble and concrete
foundations of the buildings and the old mill stack.  As of
May 1974, radioactive material has been spread over the old
mill site and contaminated material has also been placed on
what appears to be railroad right of way.  It is estimated  (1)
that the Vitro uranium mill tailings piles contain 1,666,000
tons of material with an average radium-226 concentration of
1100 pCi per gram of tailings material  (or about 1670 total
curies of radium-226).

     There is a narrow access road from 3300 South Street
leading to the Suburban Sewage Treatment Plant and a shallow
stream flows parallel to this road, thereby creating a bound-
ary line between the southeast and the southwest sections
of the tailings piles.  There is no gate on this access road
and it is through this open entranceway that most of the pub-
lic access to the tailings piles is gained.  The southern
one-half of the southeast section of the tailings pile has been
covered with about a foot of "clean" dirt as a result of road
construction in the area.
                                                           1

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Figure 1.  Vitro Uranium Mill Tailings Piles:  Salt Lake City, Utah

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     The southern one-half of the southwest section of the
tailings piles has been covered with concrete, dirt, and
asphalt road debris.  Bordering the southwest section of the
pile, on South 900 West Street, are four business buildings.
These structures were built against, and possibly over, the
tailings pile.  An eight-foot-high chain link fence has been
erected on the south side of the tailings pile (i.e., along
3300 South Street) and along a portion of the east and west
sides of the tailings pile.  The fence ends at the northern-
most building on the west side of the piles; therefore, entry
to the tailings piles area may also be gained at this point.
Indeed, the abandoned tailings piles have become a motorbike
and horse riding course for the area youngsters.

     Most of the tailings piles surface remains uncovered
and, as a result, a slick, muddy surface is formed after rain
or snow storms.  When the pile surface dries out, the tail-
ings materials are subject to wind migration and the materials
are easily spread to offsite areas surrounding the mill site.
Grass cover or volunteer vegetation growth has not occurred
over the entire tailings pile surface, although some of the
dikes are covered with growth.  It is also apparent that at
times local inhabitants have removed portions of the tailings
material for various uses around their private dwellings and
buildings.  Trash is also being discarded at the mill site.

     In 1972-1973, construction was initiated in the upper
half of the southwest section of the tailings pile for a pro-
posed automobile racing track.  An oval-shaped pit about 15
feet deep, 200 feet wide, and 500 feet long was dug out of
the tailings material.  The west end of the pit is about 100
feet from South 900 West Street, at the fence boundary of the
Won-Door Corporation Assembly Building  (Location #42330).
The tailings material which was removed to create the pit was
piled on the original pile surface to form hills from 10 to
20 feet in height, surrounding the pit.  After a rain storm,
the eastern portion of the pit floor is covered with several
inches of water.  The pit floor is at the level of the street;
i.e., the original ground level before tailings material was
placed on it.

     A stream formed by the effluent discharged from the
Suburban Sewage Treatment Plant flows between the southwest
and northwest sections of the pile.  Water flow is away from
the tailings pile.  In November 1970, the northern one-half
of the southeast section of the tailings pile was covered

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with water; and in May 1973, the northwest section of the pile
was partially covered with water.  This water was from oper-
ations at the Suburban Sewage Treatment Plant.  Except for  a
few strands of barbed wire fence, there is no access control
to the northwest section of the pile.

     The Suburban Sewage Treatment Plant, which forms the
northeast quadrant of the site, is entirely fenced and is a
restricted access location, usually limited to SSTP operating
personnel.


                   ENVIRONMENTAL SURVEYS


Sampling procedures


External gamma radiation
     Gamma radiation exposure measurements were obtained  using
portable radiation detection instruments.  Two types of survey
meters were used at different times during the studies.   An
Eberline Instrument Corporation, Model E-500B, portable Geiger-
Mueller survey meter was used and the gamma exposure rate was
reported in units of mR/h .  Also used for more sensitive  gamma
surveys was the NE-148A Baird Atomic Scintillometer and these
results were reported in units of yR/h.


The.lmo£u.mJ.ne.Ac.e.nt doA4.me.te.stA (TLV'A)

     In addition to the portable survey instruments, TLD ' s
were used in two studies (1967-1968 and 1970) to evaluate the
external gamma exposure dose.  EG&G, Model TL-12 ,  TLD  capsules
were used and returned to the laboratory* for analysis.   The
TLD results were reported in units of mR/h.


Mobile, unit gamma iad.siati.on Ac.anni.ng Au.tive.yA

     The EPA provided a contract to the U.S. AEC to conduct
a mobile gamma scanning survey in communities surrounding
*EPA,  National Environmental Research Center—Las Vegas
 (NERC-LV)  at Las Vegas, Nevada  (formerly USPHS, Southwestern
 Radiological Health Laboratory).

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uranium mill tailings sites in the Western United States.
These scanning surveys were performed in Salt Lake City, Utah,
starting in April 1972.

     The mobile gamma scanning unit was equipped with two
shielded four-inch by five-inch sodium iodide crystals.  The
signal from the crystals was recorded on a strip chart recorder
and addresses or other notes were added to the chart by the
operator.  This chart was then sent to the Lucius Pitkin*
Office in Grand Junction, Colorado, where an anomaly report
was prepared from the chart.  An anomaly is defined as any
location where the recorded counts per second (c/s) exceed
the determined background c/s for that location by 50 or more
c/s.  The anomaly report was sent to ORP-LVF** and, in turn,
forwarded to the Utah State Division of Health.
                c\a.mma fiaat^on 4 eld en-ng

     Survey teams, utilizing the gamma scanning report, per-
formed field radiation surveys in Salt Lake City.  These
surveys were performed between August and October 1972.

     The field teams were composed of two surveyors; each
person was equipped with a NE-148A Baird Atomic Scintillometer .
These instruments were calibrated with a National Bureau of
Standards certified radium needle, and a five item field check
was performed each day to determine if the instrument was
functioning properly.  If the instrument did not operate within
preset ranges, it was not used.

     The NE-148A contains a one-inch by one-and-one-half inch
sodium iodide crystal; thus, the measurements obtained are
not "true" exposure rates.  Also, because of the size of the
crystal, the meter indication represents only terrestrial
radiation.  The meter reading can be corrected to a true
value  (T) by T  (yR/h) = S  (yR/h) x 0.56 + 0.9, where S =
NE-148A meter reading.
* Lucius Pitkin, Inc., is a prime contractor for the U.S. AEC,
  Grand Junction Operations Office.
**The EPA, Office of Radiation Programs, Las Vegas Facility
   (ORP-LVF) is a tenant organization located at the NERC-LV.
  The ORP-LVF now conducts the uranium mill tailings monitoring
  previously carried out by the NERC-LV.

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     Thus, a reported 60 yR/h becomes a corrected 34.5 yR/h,
or a net corrected 24.5 yR/h (assuming 10 yR/h background).
One can obtain a total exposure rate by adding the corrected
value, in this case, 34.5 yR/h, and a known or assumed cosmic
rate.  The previously mentioned TLD and E-500B readings in
mR/h do not have to be corrected.

     A survey was performed at a location only after permis-
sion was obtained from the owner or occupant of the property.
If persons were present, but permission was not obtained,
the location was listed as a refusal.  Suspected tailings
use might have been determined while approaching the property
or structure to request permission and would be noted.  Once
permission to survey was obtained, one surveyor would survey
inside the structures while his partner would survey the
surrounding property.  The high inside gamma instrument read-
ing  (HIG), high outside  (HOG), and low outside (LOG) were
recorded on the Indoor Radon Study-Gamma Screening Form.
A copy of this form is included as figure 2.  If tailings
were found on the property, but more than 10 feet from a
habitable structure, the location is called a tailings away
or TA location.  The tailings use code would be "2."  If
tailings were found within 10 feet of a habitable structure,
it is a TU location  (under or up against).  In this case,
the tailings use code would be "1" or "3."  If instrument
readings inside a TU structure exceeded 20 yR/h, a gamma map
was made.  In many instances, a map was not required; but a
sketch showing the location on the property of readings found
above 20 yR/h was made.  This would be indicated by a "7"
in the "Gamma-Map" block on the form  (figure 2), and the
sketch would be placed on the back of the survey form.  If
ore or other radioactive material was found, the reading from
the material was not recorded as the HIG or HOG, but appeared
in the "Free Punch Comment" on the survey form.  The survey
form was then checked by an EPA field supervisor, a specific
location number was assigned to each location, and the form
was sent to the ORP-LVF for card punch and data storage.

Air Sampling


f-i\}^ m4.nu.tn. ladon i.n a
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  CARD
            LOCATION  Ho.
                                      CITY
                                           COUNTY
                                           DATE FORM COMPLETED
                                    STATE   MONTH   .  YEAR
                3456
                        7   8   9  10

                           ADDRESS
                       11 12  13    14  15   16  17  18  19
  NUMBER
                               ra.
NAME

•













   20  21  22  23  2k     25   26      27  28  29  30  31  32   33  34  35  36  37 38 39 40
           (Last Name First - Initials  for first and middle name-husband and wife)
OCCUPANTS
   NAME
                                                    -hugti
                42  ^3'  44  45  46  47 48  49  50  51   52  53  54  55  56  57  58
OWNERS     ^Last Nama First - Initials for first and middle.name - husband and vife)
            59  60  61  62  63  64  65  66  67  68  69  70  71 72  73  74  75
      CLASSIFICATION                «»•«« c.™,™™  (OWNERS ADDRESS
                                        SCREEN
           77
 0. Vacant Lot
 1. Residence single family
 2. Multiple «4  families)
 3. Apartment CH)
 4. Motel, hotel, or hospital
 5. Single business (in one unit)
 6. Multiple business unit(connected)
 7. School
 8. Church
 9- Other
                             78
                           0. None
                           1. Completed
                           2. Occupant  refusal
                           3. No - ask  owner
                           4. Owner refusal
                           5. No one to contact
                           6. No bad address
                           7. Outside, only
                           8. Special scheduling
                           9. Other
                             TAILINGS USE
                            GAMMA MAP
                                79                  80
                               0. None        0.  None
                               1. Under       1.  Yes
                               2. Away        2.  Occupant - No
                               3. Undcr-Away  3.  No ask ovmer
                               4. Possible    5.  Owner - No
                               9. Unknown     5.  No one to .see
                              	6.  Mot required
     CARD
      LOCATION NUMBER
                                          CITY
                                 COUNTY
B


1
LOCATION
CODE
HOG
1



234
Township


16 17





1 1

56 7 8 9 10 11 12 13
Section 1/4 Sec. Block Owner Number

iH

1
19 20 21
LOO
\

n i i L

22 24 25 26 27 2U
HIQ

i i i

                           STATE
                                                                             29  30
                                                                             LOCATION
                                                                               mo
      31
 32  33  3^  35

TYPE OF HOUSE
36  37  38   39  »»0

 NUMBER OF  LEVELS
    41 ^2  43  44  45

MATERIAL
       1.   Basement
       2.   Slab on grade
       3.   Crawl space

       9.   Unknown
   FREE PUNCH COMMENT
                                      1.
                                      2.
                      Masonry
                      Non masonry
    50  51   52  53  54   55  56  57  58  59  60  61  62  63  64
                       0. Bedroom
                       1. Living Room
                       2, Kitchen
                       3. Den - Family Rra.
                       4. Dining Room
                       5. Attached garage
                       6. Burenent
                       7, Work shop
                       0. Other
                       Pi  More than one
                            location
    66   67  68  69  70  71  72  73  74  75  76  77  7«  79  80
        Figure  2.    Indoor  Radon  Study-Gamma  Screening  Form

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           fiadon in
     A continuous, low-volume sampling system was used  to
obtain an integrated radon sample.  (2)  This sampling technique
consists of drawing filtered air through a small, low-volume
pump  (usually less than 10 ml/min sampling rate) into a 30-
liter Mylar bag-  Usually, a continuous 48-hour air  sample was
collected and returned to the laboratory for radon-222  analysis
     minute fiadon pfioQ^nij -in atn.
     The short-lived particulate radon daughter, products
 (figure 3) were sampled by drawing air through an Acropor
 filter  (Type AN-450, manufactured by the Gelman Instrument
 Corporation) having a 0.45 ym pore size.  Each sample was
 collected for five minutes at a flow rate of about  one  cfm.
 The particulate sample was collected separately from, but
 simultaneously with, the five-minute grab radon air sample
 in order to compute the percent equilibrium and the radon
 daughter to radon concentration ratios .


 1 ntdQiat&d ^tadon pfioQiny -in ai.fi bamptz.

     Integrated radon progeny working levels were measured
 using the TLD-Type II Air Sampler.  (3)  The detector unit
 consists of a filter holder containing a membrane filter*
 and two thermoluminescent dosimeters  (TLD's).**  One TLD
 disc is supported above the membrane filter and is  exposed
 to the combination of alpha, beta, and gamma radiations emit-
 ted by the radon progeny collected on the filter.   The  second
 TLD disc is separated from the first TLD disc by a  stainless
 steel washer that absorbs the beta particles that pass  through
 the first TLD disc.  The second TLD disc, therefore, responds
 to external gamma radiation sources and hence is the radon
 progeny background subtraction correction.  Calibration factors
 are used to convert the TLD readings  (nanocoulombs)  to  working
 level (WL)t exposure.

     All TLD's were returned to the ORP-LVF for read-out and
 data analysis.
* Millipore Corporation, DAWP01300  (13 mm dia)  0.65  ym  pore  size
**Isotopes, Inc., Teflon disk impregnated with  Harshaw  CaF2:Dy
  powder (30% by weight).
t Working Level, WL, is defined as any combination of short-
  lived radon daughters in one liter of air that will result  in
  the ultimate emission of 1.3 x 105 MeV of alpha energy by
8  decay to lead-210 (RaD).

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                                     5.48 MeV
                        Po 218
                        (RaA)
                        3.05m
                  7.69 Me V
Pb210
(RaD)
22yr

-*+•

Bi 210
(RaE)
5.0d

"^
x
Po210
(RaF)
138d
                 5.30 MeV
Figure  3.  Radon and Radon  Daughter Decay Scheme

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  Meteorology

       A mobile weather station having two separate meteorolog-
  ical data-gathering stations was used to obtain information on
  the wind speed, wind direction,  and the ambient temperature.
  The meteorological trailer is powered by a propane generator
  and the data are automatically recorded on punch tape which
  is later read out to provide the meteorological information.
  Data were usually collected from two locations at 15-minute
  intervals during the study period.   Barometric pressure
  changes were measured with a standard aircraft altimeter
  which was reset to a reference altitude.

  Analytical procedures


  Radon concentrations

       The radon analysis was performed by cryogenic separation
  and subsequent alpha scintillation counting.   In some cases,
  a scintillation cell was filled directly from the flask and
  counted.

       The radon decay is calculated to the midpoint of the
  sample collection period and the radon results are reported
  in units of picocuries per liter (pCi/1).  The decay calcula-
  tions are performed by a computer program designed for a
  CDC-6400.

  Radon daughter concentrations

       The particulate air filter sample was immediately gross
  alpha counted in the field utilizing a specially designed
  alpha scintillation counter.  The dpm/cpm for the counter is
  obtained from certified sources.  The radon daughter concen-
  trations and the working level is then calculated using the
  Thomas equations for the modified Tsivoglou technique. (4)
  These equations have been incorporated in programs for both
  the Wang 320K and 362E calculators.

  Integrated working levels

       The WL exposure measured by the Radon Progeny Integrating
  Sampling Unit (3)  is determined by the nanocoulomb readout
  from the TLD's.  This measurement of stored charge is obtained
  with a Harshaw model 2000 reader.  The nanocoulomb readout
  is converted to a WL value by utilizing a working level liter-
  per-nanocoulomb conversion factor (WL-l/nC) which is obtained
  by sampling in a known WL atmosphere.  The known WL atmosphere
  is calculated using an alpha spectroscopy system.
10

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                   RESULTS--1967 TO 1973


USPHS--1967 to 1968

     From October 27, 1967, through October 9, 1968, a joint
study between the U.S. Public Health Service  (USPHS) and
the U.S. Atomic Energy Commission  (AEC) was performed in
cooperation with the Utah State Division of Health  (UDH).
Environmental surveys were conducted during the project to
evaluate the public health aspects of atmospheric concentra-
tions of radon-222 in the vicinity of the Vitro uranium mill
tailings pile site.  The results of this study were reported
in "Evaluation of Radon-222 Near Uranium Tailings Piles,"
U.S. Department of Health, Education, and Welfare, Public
Health Service, Report DER 69-1, March 1969.   (Figure 4
and tables I through III have been taken from the DER 69-1
report.)

     Figure 4 shows the locations of the radon sampling sta-
tions used in the 1967-1968 PHS Study.  Table I contains the
radon concentrations determined for the 48-hour integrated
air samples during various sampling periods.  The yearly
average concentrations for each sampling location are pro-
vided in table II.  Table III contains the results of the
thermoluminescent dosimeters  (TL-12's) used to evaluate the
external gamma radiation exposure rate.

USPHS Surveys—November 1970

     In November 1970, personnel from the National Environ-
mental Research Center—Las Vegas  (NERC-LV) conducted a com-
prehensive gamma survey of the entire uranium mill tailings
pile site and the Suburban Sewage Treatment Plant site.  A
grid system survey, using both portable gamma survey meters*
and thermoluminescent dosimeters  (TL-12's), was completed.
This study was initiated in order to record the gamma exposure
rates over the tailings material before covering the piles
with "clean" dirt from the proposed widening of 3300 South
Street.  The cover work has not been completed to our knowl-
edge; thus, the second  (post  stabilization) part of the
survey has not been performed.

     The results of the November 1970 gamma surveys are shown
in figures 5 through 7.  The  portable instrument measurements
are given for three feet above ground surface and at the
*Eberline Instrument Corporation, Model E-500B.
                                                            11

-------
                                                            '(.f9  95(0.29)
                                           35(0.68)   '*»/4

                                                    93(0^24)
                                   TAILINGS ..
                                   r~r\  \'-'•'$ +
                                   \  I  '  '   li. 82(4.2)
                                  C  I  81(10.0)
                                84(0.39
                       SALT  LAKE  CITY
                              UTAH
                        00 STATION NUMBERS
                      (0.00) RADON-222 pCi/lit.r
                      (AVERAGE CONCENTRATION)
                81
                82
                83

                84
                85
                86
                91
                92
                93
                94

                95
                96
Center of tailings (700 West 3300 South).
Sewage Plant, 650 West 3300 South.
American Smelting § Refining Company, Hygiene §
  Research Department, 3422 South 7th West.
D. B. Harmon, 1080 West 3300 South.
Bonneville News Company, 965 Beardsley Place.
J. A. Skogg, 1501 West Claybourne Avenue.
D. Bolton, 570 West 3740 South.
Chris Body and Paint Shop Inc.,  3152 South 2d West.
Tuloma Gas Products Co., 201 West 27th South.
Aluminum Manufacturing § Supply  Co., 1809 South 8th
  West.
A. H. Higham, 105 Kestwood Avenue.
Salt Lake City Health Department, 610 South 2d East.
                  Figure 4.     Location  of  Radon  Sampling
                                  Stations  in  Salt Lake City,
                                  Utah  (1967-1968 PHS  Study)
12

-------
Figure 5.  E-500B Gamma Radiation Measurements in mR/h:   Salt Lake City,
           Utah, Vitro Uranium Mill Site:  Southeast Tailings Pile
           (3 ft. reading/ground reading)
                                                                  13

-------
Figure 6.   E-500B Gamma Radiation Measurements in mR/h:  Salt Lake City/
           Utah,  Vitro Uranium Mill Site:  Southwest Tailings Pile
  14        (3 ft. reading/ground reading)

-------
Figure 7.  E-500B Gamma Radiation Measurements in mR/h:  Salt Lake City,
           Utah, Vitro Uranium Mill Site:  Northwest Tailings Pile
           (3 ft.  reading/ground reading)

                                                               15

-------
  ground surface.   All units are reported in mR/h.*  Figure 8
  shows the results of the TLD-gainma exposure rate measurements;
  all units reported in mR/h.*

       Also, in November 1970,  a gamma survey was completed^
  at the Suburban Sewage Treatment Plant to determine if tail-
  ings had been used in the plant construction.  The gamma
  survey maps for several SSTP  structures are shown in figures
  9 through 12.  These results  are also given for three feet
  above ground surface and the  ground surface; all units are
  reported in uncorrected yR/h  (meter indication)** since the
  more sensitive NE-148A scintillometer was used for these
  surveys.  In addition to the  detailed gamma surveys conducted
  at the SSTP, both the five-minute radon air sample and the
  five-minute radon progeny particulate filter sample was col-
  lected in the main building of the SSTP.   The results of
  the air sampling are presented in table IV.

  EPA Gamma Scanning Surveys—April to September 1972

       The gamma radiation anomaly list prepared from the Mobile
  Gamma Scanning Surveys appears in appendix B.

  EPA Gamma Screening Surveys—August to October 1972

       The surveys around the Vitro uranium mill site were
  performed in August 1972.  The results of these field surveys
  are shown in figures 13 through 21.  The gamma measurements
  at three feet above ground surface and at the ground surface,
  as indicated by a NE-148A meter reading,  are reported in
  "yR/h."  Figure 13 shows the  gamma surveys of the four busi-
  ness areas located against the southwest section of the
  tailings piles along South 900 West Street.  Figures 20 and
  21 show the areas to the west and north of the mill site.

  Radon and Radon Daughter Evaluation—May 1973

       During this period,  May  2 to 22, 1973, an extensive
  radon air sampling program was conducted at the site of the
  inactive Vitro uranium mill tailings pile.  This study was
  conducted at the request of the Governor of the State of
  Utah.   This request was made  to an EPA Region VIII represen-
  tative  at a special meeting held in the Governor's office  on
  April  11,  1973.   The Governor wanted additional data to
  *  These measurements do not  need  to be corrected,
  **True yR/h = Reported yR/h  x  0.56  + 0.9.
16

-------
                      ~~  RftCE TRACK PIT
Figure  8.   TLD Gamma Radiation  Measurements in mR/h:
            Utah,  Vitro Uranium  Mill Tailings Pile
Salt Lake City,

         17

-------
60 35 40_ 40
80 40 35 40







60
80
50
60






50
60


9 21 10
8 16 9



11 11 10
10 7 10

11 9
TT 9
12 8 10
1199




16 13 15
12 13 12



15 13
13 12
9 10
9 10





1


o
35^ 40 40 40 35
35 40 40 40 35

10
LUNCH ROOM


. 	 10
8 10

8 8
8 8

STAIRS

10 10
10 10
15
-rr OFFICE
15


15 15
15 15
80 80 50 j 40
90 90 50 j 40
I



















13
12












14
14




















10
10





Ji <
11 ;>
>
z
10
9



13
15







11
21

11
TT
MEN
11
11
1 WOMEN
9 9 J0_
7 10 10



11 11 11
11 11 11

11
11
40
40
JP_
10

14
12
10


9 10 9 9
9 10 9


PUMP ROOM
9
10 8 11
8 9


25 7 ]Q 10
25 10 9 9
40 30 ! 40 60 80















40 30 j 40 70 SO
1
Legend:
SO = 3 ft. reading >iR/h
9O = ground reading ^R/h
10




1 1
11



10
10





B

50
Jo





j
1





70
70




True MR/h = reported p.R/h x O.56 -f O.9
Figure 9,  Gamma Survey Map, Suburban Sewage Treatment Plant,  Salt Lake City,
           Utah, November 1970 (NE-148A readings in pR/h)  Ground Floor Main Building

-------
      10
      1 1
   8
   ~
8ENCH
            n
            17
                                            8
                                           •^•M
                                            9
                      T   I     I  -A-    _8_
                           I     I
                 n
                 12
                           13
                            9
                                •  J.
                                I	8
                           6
                          ^•MB
                           7
                     STAIRS
                                  JO.
                                   9
 8
f^^mm
                                           8  I
                                                         6
                                                         6

                                            _6_           6
                                             6            4


                                                  PUMP ROOM


                                                        6
                                                        8
                                                                                         8
           Legend:

            1O = 3 ft. reading MR/h
            11 = ground reading ,uR/h

            True juR/h = reported |jR/h  X O.56 + O.9
Figure  10.
Garama Survey Map, Suburban Sewage Treatment Plant, Basement Main Building,
Salt Lake  City, Utah, November 1970  (NE-148A readings  in yR/h)

-------
                                                                                    15
                                                                                    12

                                                                                    17
                                                                                    17
               Legend:
                 8O = 3 ft. reading juR/h
                 12O =  ground reading >j.R/h

                 True >4R/h = Reported >j.R/h x 0.56 + O.9
Figure  11.  Gamma  Survey Map,  Suburban  Sewage Treatment Plant,  West  Digester,  Salt
             Lake City, Utah,  November 1970  (NE-148A readings  in yR/h)
                                                                                               o
                                                                                               CN

-------
                                                                          70
                                                                          70
                                                                                 _L
                                                                                  7
                    Legend:

                     TO = 3ft. reading ju/R/h
                     9O = ground reading
                     True /uR/h = reported juR/h x O.56 + O.9
Figure  12   Gamma  Survey Map,  Suburban Sewage Treatment Plant, East Digester,
             Salt Lake City, Utah, November 1970  (NE-148A reading  in uR/h)

-------
-N-
VACANT LOT
110
90 80
80 90
160
80
110 110
"90" 90
JJO.
-55*— -=-100,,
300 Tolr
250 300
200
}50
180 onn
200 "onn
AW 200
200
300 .300
250 250
150 250
100 nQ
90 150


120
100
SOUTH 9OO V
VEST STREET



110
19 38 1
19 25 1
20 27 25 :
17 3
VACANT LOT ',
70 70
60 120 120*°"
~ifin ififi" MILL CREEK
90 ROAD
200
!fe — 	 	 — 1 SQ-.I .- -gg!-.S."" '
MILL CREEK
1700
300 2000
600
1500 2500 400
250 3000
250 800
500
250
100 600
500
| 	 1 250 250
1 	 1 "207
n-23£ 200 600
:°r i so 400
180 42. m ^
|IMTI — i m -m^JM
Di
k
.*>
100
100
60
•^•^H^
i^f**=^mx
15(
201





i RG R.R.
15
12
12
J

_U
. m=^S-8
) 100
f 90
SEWAGE 1
100(
100<

Legend:
400 = 6
finft — -q
25O = 5
200 = 3
15O = g
True uR
— . 	 	
                         33OO SOUTH STREET
         Figure  13.  Gamma  Survey Map  - Area Surrounding  the Vitro  Uranium Mill
                     and Tailings Pile Site, Salt Lake City, Utah

-------
                        0)
                        o
                        c
                        H
                        I

                        (0
                        o
                        o
                        m
                        0)
                        H

                        0)
                        H
                        3J
                        m
                        m
                        H
                                        LOCATION


                                          #42326
                                90
              1 10
no
                                                                                          SOUTHWEST


                                                                                     TAILINGS PILE  SECTION
                                         VACANT LOT
                              110
90
                                          250
                                                 33OO SOUTH STREET
OJ
  Legend:

    3OO = 6 ft. reading

    25O = 3 ft. reading

    25O = ground reading


    9O = ground  reading


  True /uR/h = reported
                                                           x O.56 + O.9
             Figure  14.   Gamma  Survey Map, Location  42325  (Vacant  Lot)  Salt Lake City,  Utah

-------
CO
o
m
en


0)
-i
3
m
m
                          210

                          180
 200

TSO"
250

210
                                     250

                                     200
PARKING LOT
130
no



30 50
30 40

45 65
45 50

55 50
40 40
*
45 50
40 60

Location #42326
60 55
55 55

40
45

40 35 30
35 35 30
135
110
VACANT LOT
Legend:
19O = 6 ft. reading 145 = 3 ft. reading
14O = 3 ft. reading 13O = ground reading
120 = ground reading
True juR/n - reported .wR/h x 0.56 + O.9
190 145 200
210
150
150





17
15


140 130 150
120 120



                                                                              300

                                                                              250

                                                                              200
  Figure  15.   Gamma Survey Map, Location 42326, Salt  Lake City, Utah
                                                                                   
-------
       0)
       o
       c
       H
       I
       (0
       o
       o
       m
       en
       H
       cn
       ;D
       m
       m
       H
                                     LOCATION #42328
                  200
                  180
VACANT LOT
250
230
210
 300
 250
 200
                230
                150
                120
 170
 750
250
200
                                     LOCATION #42326
                         Legend:
                          2OO = 3 ft reading
                          18O = ground reading
       23O = 6 ft. reading
       15O = 3 ft reading
       12O = ground reading
                         True u.R/h = reported MR/h x °-56 + °-9
                        SOUTHWEST


                        TAILINGS PILE

                          SECTION
Figure  16.   Gamma Survey Map, Location  42327  (Vacant  Lot)  Salt Lake  City,  Utah

-------
en
o
c
H
I

(D
O
O


S
m
0)
H
3J
m
m

1140
120
N-
1













60
50
75
60




55
50
50
50

no
~90~




220
160 160
140 140


70 70 70
60 60 60
90 80
80 60
LOCATION #42328

75
75"
90 75
70 65
60 60 45
50 50 30



240


80
70
90
70




60
50



210



400
270
240





180
110
110 160 110
100 120 110
ion
Legend:
11O = 3 ft. reading 16O = 6 ft. reading
9O = ground reading 12O = 3 ft. reading
1OO = ground reading
True ^uR/h = reported juR/h x O.56 + O.9




Vi
o
     Figure 17.  Gamma  Survey Map - Location  42328,  Salt Lake City,  Utah

-------
     -N-
                 0)
                 O
                 c
                 H
                 I

                 (0
                 O
                 O
                 m
                 0)
                 H

                 0)
                 H
                 3
                 m
                 m
                 H
190
160
150
140
220
180
150
250
300
300
400
180
150
130
180
155
120. T60~
150
no
140 J8
210 2C
290
210
290

280
300
250
300
240
280
210
250
0
0
•



300
350
300
300
200
250
150
180
Legend:
3OO =
4OO -
True u.F
400
250" 350 550
210 300 500
no
200
140
190
no
180
180
200
-122.
220
210



140
190
140
190
50
60
^"""^T™"
280
lf-70
45
40
60
80

120 140 140
110 110 120 160 90
120 80
70 100 70
80 100 50
60 50 50
50 35 40
40
50 50 50 50 ~35~
40 60 40 45
LOCATION #42329
JiP_ WORK AREA
60
45
80 45 40
110 50 50
45
60
55 40
65 45 60
40 45
100 40_ _40_ _50
100 45 35 35
no ]3o no
no 100 130
3 ft. reading
ground reading
R/h = reported jj
35Q = 6 ft. reading J5_0_
90 190
no 210
70
90
65
75
180
190
110
100
60
80
130 130
190 170
190
210
'^9O - 3 ft. reading 290 ^^~ — '
24O = ground reading 24Q
R/h x O.56 + O.9
NJ
                  Figure 18.  Gamma Survey  Map,  Location 42329, Salt Lake City,  Utah

-------














0)
o
c
H
I
(0
o
o
$
CO
H
CO
H
m
m









_Z£0 1200
600 1500
73W


500 700
400 500
150
110
250
200






300
2
-------
                    160
                    "80
                     90
             VACANT LOT
                 100
                  80
                  90
                       _400.
                        300
                        250
                                                                VACANT LOT
                                                     200
                                                     150
                                   MILL CREEK ROAD
                                                      120
                                                      100
                                                      80
                                                                                                        JO
                                                                                                        22
                                                                                                        50
                                120
                                100
     100
     250
     200
              200
              250
                            Legend:
                             16O = 6 ft. reading   2OO = 3 ft. reading
                              8O = 3 ft.i reading   25O = ground
                              9O = ground reading          reading

                             True juR/h = Reported AiR/h x O.56 + O.9
         1700
         2000

NORTHWEST TAILINGS PILE SECTION
                                         450
                                         400
                                     SMALL CREEK
                                                          SOUTHWEST TAILINGS PILE SECTION
vo
             Figure 20.
Gamma Survey Map -  Location 42331  (Vacant Land West of Tailings Pile)
Salt Lake City,  Utah

-------









(fl
o
c
H
1

O
O
£
m
CD
— i
en
H
33
m
m
-i



19
19
21


45
50



50
50



70
70
60






120
120
70


-^ — ^-^.
28
9 S
T7

Legend:
19_ = 6 ft. reading
19 = 3 ft. reading
21 — ground reading
5O = 3 ft. reading
5O = ground reading
True >jR/h = reported HR/h x O.56 + O.9



70
70
60






120 120
120 100
70 60
MILL



, _ ;
IZ '


,
25. I
17
20


:
1
i


J-5
:; "^2"


: 15
D & R G RAILROAD *' J_5_
ii 12
' '

iq
T7
l 19

>

80 50 22.
70 60 20






100 _60_
100 60
60 70
CREEK ROAD

V— ^-"^
^Z^^~'V""^~' 	 " 	 "-^ MILL CREEK

NORTH
,/VF-ST TA
^ 	 ^_ ^__^^^_ 	 /""nir^ ~~ —
^ 	 	 ^-^_^— — ~.^^-
II INfiS Pll F .SFCTIDM
Figure 21.  Gamma Survey Map - Location  42332  (Vacant  Land  North  of  Tailings Pile)
            Salt Lake City, Utah

-------
evaluate the potential radiological hazards associated with
the operation of an automobile race track proposed for the
southwest section of the tailings pile.  As described earlier,
by April 1973, a pit had been dug out of the tailings pile,
resulting in an excavation about 15 feet deep, 200 feet wide,
and 500 feet long.  The tailings material removed from the
pit was piled on the surrounding pile to form hills about
10 to 20 feet high.  This study was completed by EPA, ORP-
LVF, with the assistance of the Utah State Division of Health
and EPA, Region VIII personnel.  Included were radon and
radon daughter evaluations at the tailings pile, the Subur-
ban Sewage Treatment Plant, and in the four business buildings
on South 900 West Street.

     Figure 22 shows the air sampling locations selected for
this study.  Location #75001 was the station setup on the
floor of the race track pit dug out of the tailings pile.
This station was located about 50 feet away from the wall
of the pit.  The pit was approximately 15 feet deep at this
point.  Portions of the pit floor were covered with from one
to six inches of water during the sampling period.  Location
#75002 was an indoor station in the "lunch room" of the
Suburban Sewage Treatment Plant.  The SSTP is surrounded
by the tailings pile on its south and west boundaries, but
none of the habitable SSTP buildings appear to have been
constructed over uranium mill tailings.  Location #75003 was
the station setup on the southwest section of the tailings
pile.  Most of the area surrounding Location #75003 was cov-
ered by dirt, concrete, and asphalt road debris.  Location
#75004 was the station setup at the perimeter fence between
the Won-Door Corporation and the tailings pile at the south-
west end of the excavated pile.

     Four stations were located indoors at the business build-
ings on South 900 West Street.  Location #42326 was an office
reception area of the Sierra Corporation at 3275 South 900
West Street.  Location #42328 was the main stock room of
Inventory Sales at 3227 South 900 West Street.  Location
#42329 was the main assembly room of the Won-Door Corporation
at 3215 South 900 West Street.  Location #42330 was the rear
assembly area of the Won-Door Corporation at 3195 South 900
West Street.

     Several different radon air sampling methods were used
at the various locations.  A TLD-Type II air sampler was
installed at each of the locations to measure the integrated
radon progeny working level.  An integrating air sampler for
the determination of 222Rn was used at locations #75001,
                                                            31

-------
                                                                   11
                             SOUTH 9OO WEST STREET
             #42326
                      #42328
                               #42329
                                           S4233O
                                                   #75004
                                                  o
u
CJ
0)
0
c
0)
H
31
m
m
H
#75003
O
               SOUTHWEST TAILINGS  PILE
                                                      RACE
                                                      TRACK

                                                       PIT
                                                 S75OO1
                                                         o
                                                 o
                                          METEOROLOGICAL TRAILER

                                              EPA  / NERC -LV
                            ACCESS ROAD
                          SOUTHEAST  TAILINGS PILE
                                                                     NORTHWEST

                                                                    TAILINGS PILE
                                                                                 #75002
                                                                                 SEWAGE

                                                                                  PLANT
      Figure  22.  Air Sampling Locations - May 1973  -  Salt Lake City,  Utah

-------
#75002, #75003, and #75004.  A "grab" radon sample was col-
lected for five minutes by drawing filtered air into an
evacuated glass flask  (2-liter volume) at locations #75001,
#75002, #42326, #42328, #42329, and #42330.  Simultaneously
with the radon grab sample, short-lived radon progeny
concentrations were determined by collecting a five-minute
particulate air sample.  The working level exposure was
then determined by using the Thomas equations for the modi-
fied Tsivoglou method.

     The results of the various air sampling methods for
each of the locations  are shown in tables V through XII and
in figures 23 through  25.

     Tables XIII and XIV show the comparisons between the
various radon sampling methods for locations #75001 and
#75002.
                   DISCUSSION OF RESULTS
Gamma Radiation Exposures on the Tailings Pile

     The gamma radiation measurements which have been made
on the pile are provided in table III and figures 5 through
8.  The average TLD measurement for the 1967-68 on-pile
sampling station was 1.1 mR/h.  A grid system was established
in 1970 with 13 stations from west to east, which were about
150 feet apart; 13 stations were also established from north
to south, which were about 250 feet apart  (figure 8).  E-500B
measurements were taken at each grid intersection and TLD's
were placed at alternating grid intersections.  As table XV
shows, there is very good agreement between the TLD measure-
ment  (TLD mounted on a stake three feet above the surface)
and the E-500B measurement  (number in parentheses) at the
same location; thus, the E-500B measurements do not require
correction.  The average for the northwest pile at the 12
locations where TLD and E-500B measurements were made  (table
XV) was 0.57 mR/h  (TLD) and 0.53 mR/h  (E-500B).  The average
of all 35 E-500B  (three-foot) measurements  (figure 7) was
0.63 mR/h.  Similarly, the southwest pile  (table XV) showed
1.1 mR/h  (TLD) and 0.99  (E-500B) with a 1.12 mR/h for all
32 (three-foot) E-500B measurements  (figure 6); and the
southeast pile  (table XV) had an average of 0.47 mR/h  (TLD)
and 0.45 mR/h  (E-500B) with 0.45 mR/h for all 46  (three-
foot) E-500B measurements  (figure 5).  Fulltime occupancy
in these areas would result in whole body gamma exposures
                                                           33

-------
    .500
    .050
   G>

   m
   <
   m
   r .020
   0)
    .010
     .005
                         i—r
()-
Legend:


 O - Location #42326

 A - Location #42328


 n - Location #42329


 • - Location #42330


 X - Location #75OO1


 T - Location #75OO2


	Location  #75003
                                     —i
         »  »  .......  «  ......
34
         124    6   8   10  12  14   16   18   20  22  24  26   28   30

                                    MAY. 1973



    Figure 23.    TLD Integrated WL  Exposure  -  Salt  Lake City,  Utah

                    May 1973

-------
        100.
        50
       10.00
        5.00
        1.00
       0.100
        .050
        .01
3L.1200
              2400
                                           X--H—
Legend.
• - Radon (6 n
© - Ra A
A - Ra B
EJ - Ra C-C'
_x_ Radon (48

nin grab)



hour)
                          I    I
                                         I    I
                                                              "75R   16
                                                                                               I    I
                                                                                                 23   -24   25
  1
                                               10   11
                                                      "12   13

                                                       MAY. 1973
U)
Ul
              Figure 24.   Radon and Radon Daughter Concentration  (pCi/1)  Salt Lake City,  Utah
                            (Location #75001)  -  May 1973

-------
 100,-
 50
10X0
 5.00
 1.00
0.100
 .050
 .010
                                                                                         24   25
     Figure  25.   Radon  and Radon Daughter Concentration (pCi/1)  Salt Lake City,  Utah    ^
                   (Location #75002) - May 1973

-------
of about 100 times above background.  The exposures received
by children using the area as a playground are not beneficial
and the exposures are received unknowingly.

Radon and Radon Daughter Concentrations

     Radium decays to radon, a chemically inert gas.  Radon
is capable of diffusing through most materials.  The radon,
in turn, decays to several short-lived particulate radon
daughters  (figure 3).  When inhaled these particles can
remain in the air pathways long enough for the alpha decay
energy from the radon daughters, which represents the prin-
cipal dose received, to be absorbed by the cells lining the
tracheobronchial passages.

     The biological  effect of excess exposure to radon
daughters can be a form of lung cancer, considered to be
100 percent fatal.   It is, therefore, unfortunate that
there is only a limited amount of experimental evidence or
clinical documentation available regarding the consequence
of chronic low-level exposures.

     During the 1967-1968 PHS Study, only radon measurements
were made to determine if the Vitro uranium mill pile had
any effect on the surrounding community.  The guidance used
for comparison of the sample values is found in 10CFR20.  (5)
This guidance states that at the perimeter of a site the
radon concentration  should not be above 3 pCi/1 (3 x 10~9
yCi/ml); except, if  a significant population group can be
exposed, it should not exceed 1 pCi/1.  Since measured com-
munity values did not exceed 1 pCi ^^Rn/l, nothing more was
done at that time.   This is because of the mechanics of the
WL.   (If radon is in equilibrium with its daughters and
100 pCi/1 of radon is present, the decay energy of the daugh-
ters will produce 1.3 x 10^ MeV of alpha energy or one WL.)
Thus, the less than  1 pCi/1 radon measurements obtained  (in
the surrounding community) indicated that less than 0.01
WL would be present.  Actually, a much lower WL would be
present since radon  would not be in equilibrium with its
daughters because of the constant air movement.  The pre-
sence of less than 1 pCi/1 of radon led to the conclusion
presented in DER 69-1 that there was no hazard created in
the surrounding community  (beyond one-half mile).  Field
data collected to date indicates that for general public
areas  (at distances  greater than one-half mile from the
tailings pile) the measured radon levels from the pile were
not distinguishable  from natural background levels and were
found to be within current guides.
                                                           37

-------
      There is,  at present,  no general guidance for public
 exposures to radon or radon daughters.   In general, an
 applicable occupational exposure guide is divided by ten
 to obtain an exposure guide applicable to an individual
 in the general  population.   The current occupational limit
 for uranium miners is 0.3 working level months (WLM) or
 four WLM per year.  (If a person works in an atmosphere
 containing 0.3  WL for one working month, 170 hours, he has
 received 0.3 WLM.)

      Because of the previous practice of using uranium mill
 tailings in the construction of homes,  the Surgeon General
 of the USPHS was requested  to furnish guidance to the State
 of Colorado.  This guidance, which includes guidance for
 exposure to gamma radiation as well as radon daughters,
 was provided in August 1970.  The working level value,
 0.05 WL, is based on the time necessary (50y)  for a person,
 continually in  that atmosphere, to accumulate 120 WLM which
 is considered to be the dose necessary to double one's risk
 of contracting  lung cancer; however,  because of the many
 uncertainties and unknowns, the 0.01  WL value is being used
 as a remedial action level. (6)

      The radon  and radon daughter measurements made at the
 Vitro site in May 1973 were made to determine if the surface
 of the pile could be developed and, at the same time, to
 prevent any increase in public exposure to ionizing radiation,
 In the case of  the race track proposal, any public exposure
 to ionizing radiation is considered unacceptable by EPA
 because the exposure would  be non-beneficial and it would
 be received unknowingly by  persons attending the racing
 events.

      The integrated radon measurement obtained (table IX)
 from May 2 to May 20, 1973, indicated an average of 5.9
 pCi/1 at the pile with an average WL of 0.010 (table V).
 Thus, the radon daughters had reached 16.9 percent of
 equilibrium* with the radon.

      Five-minute radon and  particulate filter samples were
 also collected  and the WL calculated.  These samples were
 collected over  three 48-hour periods  from May 2 to 4,
 May 9 to 11, and May 20 to  22, 1973.   The average values
 *100 pCi 222Rn/l in 100% equilibrium with the radon daughter
  products is equal to 1 WL.
38

-------
for these periods appear in tables VI, VII, and VIII; and
although the average radon concentration was 5.7 pCi/1, the
average working level was 0.002 which indicated the radon
daughters had reached only three percent of equilibrium.
The five-minute grab sample allows one to obtain radon
daughter to radon ratios, but the answer obtained is valid
only for the five minutes during which the sample was
collected.  Thus, the integrated values  (table"IX) provide
a better estimate of the WL exposure.

     In the open, on the surface of the pile, the measured
working level was 0.010 WL.  The average at the other two
locations on the surface of the pile  (locations #75003 and
#75004), as shown in table V, was 0.006 WL and 0.008 WL,
respectively.  Thus, the gamma exposure rate existing on
the surface of the pile is unacceptable for public exposure,
but the less than 0.01 WL's detected in the open would not
cause undue concern.  However, if an enclosure of any type
is placed on or against the surface of the pile, the results
are very different, as shown in table V for locations #42326,
#42328, #42329, and #42330.

     In general, the radon concentration inside a building
will come into equilibrium with the radon concentration
that exists outside the building, but the longer air-residence
time inside the building will cause the radon daughters and
radon to have a higher percent equilibrium and hence a higher
WL.

     One five-minute grab air sample was obtained in each of
the four business buildings adjoining the west side of the
tailings piles.  Integrated WL measurements were also made
in the buildings from May 3 to 22, 1973.  The calculated
percent equilibrium is higher for all of the buildings than
the outside measurements and indicates the amount of venti-
lation present in the buildings at the time the grab sample
was taken; i.e., there were no doors open in locations
#42326 or #42328 but freight loading doors were open in
locations #42329 and #42330.

     The integrated WL's reported for the preceding four
locations are 0.023 WL, 0.021 WL, 0.12 WL, and 0.47 WL,
respectively.  The yearly WL exposure would be estimated
to be higher because during the cold months the buildings
would not be open as much as during the warm months; i.e.,
May values.
                                                           39

-------
     The Suburban Sewage Treatment Plant is about one-quarter
mile from the north edge of the tailings pile and the average
integrated radon concentration was 3.67 pCi/1  (table X), an
average integrated WL  (table V) of 0.008 WL, and 21.0 percent
equilibrium.  The grab sample values for the same period were
2.14 pCi/1 radon, 0.001 WL, and 6.4 percent equilibrium
 (table VII).  These values  (table VII) appear to indicate
what would be expected when compared to the values obtained
in November 1970  (table IV).  That is, the relative percent
equilibrium is higher during November than during May indicat-
ing a longer air-residence time in November because the build-
ing is not open as much.  Based on these values, an employee
of the SSTP would not be expected to receive a working level
overexposure during an eight-hour working day at the Suburban
Sewage Treatment Plant.

Gamma Radiation Exposures in the Salt Lake Valley

     The mobile gamma scanning unit scanned 39,301 structures
in the Salt Lake Valley and reported 272 gamma radiation
anomalies.  Twenty-seven of these were reported in Magna, Utah,
but none were determined to be tailings locations.  The remain-
ing 245 anomalies were also investigated, resulting in the
preparation of 226 Indoor Radon Study-Gamma Screening Forms,
as shown in table XVI.   (Fifteen locations were duplicated
in the Mobile Gamma Scanning Unit Reports; two locations
were screened which were not reported by the mobile unit;
and six anomalies, previously surveyed in 1970, were reported
by the mobile unit, but no screening form was completed.  Also,
two locations were duplicates, but two forms were filled out
for each.)  The location numbers assigned to the screening
forms for the Salt Lake Valley are #42295 to #42476 and #42511
to #42554.

     The causes of the anomalies  (as listed in table XVIII)
in the Salt Lake Valley are shown in table XIX.  There are  64
anomalies reported in table XIX where nothing could be found
or a refusal was obtained:  17 were bad address reports;
seyen were refusals; and at 40 locations, nothing could be
detected on the property to indicate a reason for the reported
anomaly.  Fifteen anomalies were caused by radioactive mater-
ials, and 71 were determined to be tailings locations:  20
possible tailings use; 13 tailings away locations; 35 tailings
under  (up against) and away; two tailings under; and one was
the Vitro uranium mill tailings pile.  In addition, it was
determined that at 36 of the 71 locations, the tailings were
windblown from the tailings pile.  It appeared that tailings
40

-------
had actually been hauled onto the property at the remaining
34 locations (excluding the tailings pile).  Of these, 18
locations are tailings away and 16 locations are tailings
under and away.

     Radium dial clocks were found at Location #42410, a
drug store.  Associated gamma measurements were 50 yR/h.

     At four locations, #42312, #42313, #42346, and #42411,
the reported anomalies were determined to be due to "shine"
from sources reported at another location, but not located
on the involved property.

     The gamma measurements obtained at the locations where
natural radioactive materials were found are typical of the
two-to-three times background measurements associated with
comparable material.

     Twenty locations were determined to be possible tailings
use locations.  All of the anomalies were apparently caused
by windblown material from the tailings pile.  Structures
are involved at eight of the locations and the remaining
locations  (12) are vacant lots.  Gamma measurements to 400
yR/h were recorded at these locations.  These locations
have a "4" recorded under "Use" on the screening forms and
in the attached computer printouts  (appendix D).

     Thirteen properties designated by a "2" recorded under
"Use" were determined to be tailings away  (tailings more
than ten feet from a habitable structure) locations.  At
four of the locations, #42309, #42319, #42335, and #42413,
the tailings were found on property which contained structures.
Seven involved vacant lots with gamma measurements to 1,000
yR/h and two were inactive tailings ponds at the Vitro mill
site.

     Thirty-six properties were determined to be tailings up
against and away locations.  At 16 of these, where the tailings
material has apparently blown from the tailings pile onto
the property and up against the structures, gamma measure-
ments to 110 yR/h were recorded  (#42301, #42302, #42304,
#42305, #42306, #42307, #42315, #42316, #42317, #42318,
#42347, #42349, #42350, #42352, #42355, and #42357).  At the
remaining 10 locations where similar measurements were
obtained, the tailings material appeared to have been hauled
onto the property  (#42349, #42351, #42359, #42393, #42396.
#42403, #42412, #42511, #42514, and #42546).
                                                            41

-------
     Tailings were determined to be under or under and away
at six business locations.  At Location #42311, with gamma
measurements to 60 yR/h inside and 100 yR/h outside, the
tailings are located under the floor slab.  At Location
#42329, with gamma measurements of 350 yR/h inside and 550
yR/h outside, the tailings were found over the entire
property.  At Location #42330, tailings were also found over
the entire property; and gamma measurements of 500 yR/h in-
side and 2,500 yR/h outside were recorded.  At Location
#42363, where the entire floor slab is involved, 150 yR/h
inside and 50 yR/h outside gamma measurements were recorded.
Location #42394 is a Salt Lake City fire station with tail-
ings over the entire area and gamma measurements recorded
inside were 110 yR/h and 400 yR/h outside.  At Location #42408,
gamma measurements of 190 yR/h were observed in the display
area with the associated outside measurements of 1,000 yR/h.

     Three residential properties are tailings under locations.
Location #42321 is a single family residence and the tailings
were determined to be under the floor slab.  The high inside
gamma measurement (HIG) was made in the living room and 60
yR/h was recorded.  Associated outside gamma measurements to
30 yR/h were recorded.  At Location #42462, where tailings
were found under the south section of a vacant trailer house,
the associated gamma measurements were 100 yR/h.  Gamma measure-
ments to 130 yR/h were recorded in the utility room at Location
#42528.  Tailings were also found in the lawn and a flower
bed with gamma measurements to 500 yR/h.

     The screening form assigned Location #42295 was prepared
for the former Vitro uranium mill site.  The buildings at
this site have been dismantled and removed since the time of
the survey.  There were no measurements obtained inside the
mill buildings during the survey, but gamma measurements
greater than 3,000 yR/h were obtained outside at the site.

     In conclusion,  there is not any one simple solution to
the environmental problems associated with the radon emana-
tions from uranium mill tailings.  If the property now covered
by the tailings is to be developed and structures placed on
it, the stabilization will be very difficult and expensive.
Various estimates have been made of the depth of soil neces-
sary to significantly reduce radon emanation.  (7)  However,
to date, there have been no attempts to cover tailings piles
with sufficient material to eliminate or significantly reduce
radon emanation.   Removal of the tailings to another location
42

-------
would be a possible, but costly, solution.  An estimate made
for another site was $6 million to move one and one-half
million tons 16 miles by truck  (25
-------
 any  other  available guidance at the present  time,  the  appli-
 cation  of  this guidance  to the Salt Lake  City  area may be  used
 with limitations.  The limitations must specifically address
 differences  in site conditions, i.e.,  a case-by-case evalua-
 tion is absolutely necessary for  the  involved  properties.

      Subsequent  to the May 1973 Study  at  the Vitro site,
 recommendations  (appendix F) were provided by  the  EPA. These
 were presented to the Governor of the  State  of Utah on June  7,
 1973.   The EPA considered the following facts  in preparing
 these recommendations:

      1. The U.S. Atomic Energy Commission,  in dealing with
 new  uranium  mill license applications, requires as a prerequi-
 site to the  issuance of  a license, that the  applicant  submit
 its  procedures for stabilization  and  long-term maintenance and
 control of tailings.  Mill owners must also  provide assurance
 that funds will  be available for  reclamation of the tailings
 area when  mill activities are terminated.  In  addition, the
 AEC  requires the licensee to subject  the  land  on which the
 tailings are stored to the following  restrictions:

         a.   The owner may not permit  the exposure and release
 of the  tailings  material to the surrounding  area.

         b.   No  structures which  men  or animals can occupy
 may  be  built on  the covered surface.

         c.   The covered surface  may  not  be  subdivided.

         d.   No  private  roads, trails, or rights of way may
 be established across the covered surface.

      These restrictions  are to be binding on the licensee
 while it owns the land,  and on successive owners thereafter,
 for  a period of  50 years or until such time  prior  to the
 expiration of the 50-year period  as regulations are promul-
 gated to control disposition of uranium mill tailings. (8)

      2. The AEC has required one licensee of  an inactive
 uranium mill to  submit an Environmental Impact Statement  (EIS)
 before  the company's application  for  license termination  is
 considered.

      3. Because of the  use of the uranium mill tailings  in
 construction in  Grand Junction, Colorado, the  Congress of  the
 United  States authorized the expenditure  of  $5 million
 in Federal funds, matched by $1.6 million of State of  Colorado
44

-------
funds, to correct the overexposure to radiation occurring in
that community.  Tailings use in construction in Utah has
also been determined, but the State has no regulations to
control the further use of tailings.  As evidenced by the
construction work that has occurred on the surface of the
Vitro tailings pile, unauthorized use of the tailings can
still occur.

     The EPA realizes that the AEC policy for new mill oper-
ators and the one EIS requirement for a uranium mill license
termination would not be binding on the present owners of the
inactive and delicensed Vitro facility; however, the EPA
believes that the intent of these new policies should apply
to proposals for new uses of land covered by a tailings pile
or the land which is within one-half mile of a tailings pile.

     Until regulations are available for the permanent con-
trol of the tailings, including, but not limited to, the first
proposed use, any use of the tailings material or the tailings
pile site and its immediate vicinity is not recommended.

     The EPA further recommends that, because uranium mill
tailings material has been found in the Salt Lake Valley,
no new or remodeling construction be allowed at locations
where tailings materials were found until a radiation survey
of the site has been performed by a person or firm with com-
petency in radiological health, as defined by the State's
laws or statutes related to ionizing radiation.   (Guidance
levels that may be  used for decontamination are discussed
in appendix E.)
                                                           45

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                           APPENDIXES
                                                         Page
 Appendix A

 Table I
 Table II



 Table III


 Table IV



 Table V


 Table VI



 Table VII



 Table VIII


 Table IX



 Table X
Concentrations of Radon~222 found in
48-Hour Integrated Air Samples from
Salt Lake City, Utah  (1967-1968 PHS
Study)

Average Concentrations of Radon-222
for Salt Lake City, Utah (1967-1968
PHS Study)

Thermoluminescent Dosimeter Results
(1967-1968 PHS Study)

Air Sampling Results  (Location #75002)
Sewage Treatment Plant (Indoor)
Salt Lake City, Utah  (1970)

Integrated Working Levels--Salt Lake
City, Utah, Sampling Stations

Air Sampling Results  (Location #75001)
Tailings Pile, Floor of Pit, Salt Lake
City, Utah  (1973)

Air Sampling Results  (Location #75002)
Sewage Treatment Plant, Salt Lake City,
Utah (1973)

Air Sampling Results, Business Buildings
(Indoor) Salt Lake City, Utah  (1973)

Integrating Radon Air Sampling Results,
Salt Lake City, Utah  (Location #75001)
Tailings Pile, Floor of Pit  (1973)

Integrating Radon Air Sampling Results,
Salt Lake City, Utah  (Location #75002)
Sewage Treatment Plant (1973)
49

50
55



56


57



58


59



62



65


66



66
46

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Table XI



Table XII



Table XIII



Table XIV



Table XV



Table XVI


Table XVII

Table XVIII
                                                        Page
Integrating Radon Air Sampling Results,      67
Salt Lake City, Utah, Location #75003,
South Side of Tailings Pile, 1973

Integrating Radon Air Sampling Results,      67
Salt Lake City, Utah, Location #75004,
West Side of Tailings Pile, 1973

Radon Sampling Method Comparison, Loca-      68
tion #75001, Salt Lake City, Utah, May
1973

Radon Sampling Method Comparison, Loca-      69
tion #75002, Salt Lake City, Utah, May
1973

Comparison of TLD and E-500B Gamma           70
Radiation Exposure Rates, Vitro Uranium
Mill Tailings Pile, Salt Lake City, Utah

Community Gamma Scanning and Screening       71
Results

Computer Codes and Location Numbers Used     71

Determined Cause of Reported Scanning        72
Anomalies, Salt Lake City, Utah
Table XIX    Anomaly Occurrence in Surveyed Communities   74
Appendix B


Appendix C




Appendix D
Mobile Gamma Scanning Report, Salt Lake      75
Valley, Utah

Recommendations of Action for Radiation      97
Exposure Levels in Dwellings Constructed
on or with Uranium Mill Tailings — Surgeon
General, Public Health Service

Computer Printout—Utah Comprehensive by    104
City, Street Address, Salt Lake City, Utah
                                                           47

-------
 Appendix E   U.S. Environmental Protection Agency's      116
              Informal Guidance for Assessment of the
              Need for Remedial Action Based on the
              Follow-up Gamma Survey Reports for
              Communities which are Located near Uran-
              ium Mills

 Appendix F   U.S. Environmental Protection Agency's      H8
              Recommendation for the Vitro Tailings
              Pile in Salt Lake City, Utah (June 7,
              1973)
48

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  APPENDIX A
TABLES I - XIX
                                          49

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                                TABLE I
                   Concentrations of Radon  222  Found
                   In 4,8-hour Integrated Air  Samples
                       From Salt Lake City, Utah
                          (  1967-1963 PHS Study)
              Midpoint of          Concentration of radon 222
         Sta- sampling time               (pCi/liter)
50
^ion — — -
no. hour
81 1458
1035
1115
1600
1100
1330
1135
1030
111S
1100.
1145
1505
1052
10SO
1240
1005
82 1245
1115
1025
1120
1400
0740
1110
1035
1050
1115
1130
1220
1100
1205
1105
83 0830
1035
1115
1415
1250
1340
1120
1105
1010
1145
day
10-31-67
11-7-67
11-28-67
1-4-68
1-16-68
2-14-68
3-6-68
3-20-68'
4-17-68
5-1-68
5-28-68
7-11-68
7-31-68
8-21-68
9-11-68
10-3-68
10-27-67
11-16-67
12-27-67
12-5-67
1-23-68
2-7-68
2-2B-68
3-20-68
5-7-68
4-9-68
5-28-68
6-19-68
7-24-68
8-7-68
9-5-68
11-1-67
11-21-67
12-12-67
1-11-68
1-30-68
2-20-68
3-13-68
4-3-68
4-24-68
5-14-68
USAEC
18.3
17.6
4,24
2.SS
11.5
7.8
16.2
7.44
5,67

22.1
5.9
5.1
4.4





4.17

3.13

6.39



0.39

0.50


0.30
0.31
0.21
0.17
± 0.1
± 0.2
± 0.05
± 0.05
± 0.1
± 0.1
± 0.1 17. S ± 0.1
± 0.08
± 0.08

± 0.2 21.8 ± 0.1
± 0.1
± 0.1
± 0.1





± 0.06

± 0.08

± 0.09



± 0.03

± 0.02


± 0.02
± 0.02
± 0.01
± 0.01
SNRHL
16.66
S.70
9.69
6.92
1.62






Sell

6.49
7.42

2026
4.55
3.49
2.49
4.38

2.97

3.70

5.20
3.07
1.30

0.50
0.26
0.12
0.39













7.09
7.34



4.39




















-------
                        TABLE  I (CONT)
      Midpoint of
Sta- sampling time
Concentration of radon
       (pCi/liter)
222
no. hour
83 1140
1125
1000
1110
1100
1530
84 1200
1040
1100
0945
1040
1125
1045
1140
1110
1125
1130
1040
1110
1255
1235
1020
85 1122
1050
1130
1155
0755
1135
1015
1100
1030
1120
1055
1150
1020
86 1315
1045
1125
1547
day
6-5-68
6-25-68
7-18-68
8-14-68
8-28-68
9-18-68
10-29-67
11-28-67
11-7-67
12-20-67
1-16-68
3-6-68
3-20-68
4-17-68
5-1-68
5-21-68
6-11-68
7-31-68
8-21-68
9-11-68
9-25-68
10-9-68
10-29-67
11-16-67
12-5-67
1-23-68
2-7-68
3-6-68
3-27-68
4-9-68
5-7-68
5-28-68
6-19-68
7-24-68
10-3-68
10-29-67
11-21-67
12-12-67
1-3-68
USAEC


0.71


0.44

0.42

0.21
0.25



0.21



0.68

0.60


0.98
0.83
0.23
0.58
0.81
0.82
0.47
0.51

1.30

0.44

0.54


± 0.03


± 0.02

± 0.03

± 0.02
± 0.02



± 0.01



± 0.02 0.53 ± 0.02

± 0.02


± 0.04
± 0.04 1.00 ± 0.04
± 0.02
± 0.02
± 0.02
± 0.03
± 0.03
± 0.02

± 0.03 1.44 ± 0.05

± 0.02

± 0.03
SWRHL
0.63
0.48
0.60
0.42

0.09
0.76
0.38
0.23

0.85


0.27
0.31
0.43

0.28
0.24
0.39
0.60
1.23 1.05

0.63 0.58
0.36 0.33








0.62
1.4
0.50

0.15


-------
                         TABLE  I  (CONT)
Sta
tioi
no.
86










91














92














Midpoint of
• sampling time
i -— — -.-^— - 	
hour
1305
1310
1045
1120
1050
1100
1130
1110
1030
1305
1100
1117
1025
1105
1005
1110
1255
1155
1100
1045
1040
1150
1125
1105
1045
1220
1550
1025
1105
1055
1415
1110
1100
1020
1120
1230
1215
1130
1150
1530
0945
day
1-30-68
2-20-68
3-13-68
4-3-68
4-24-68
5-21-68
6-5-68
6-25-68
7-18-68
8-14-68
8-28-68
10-27-67
11-7-67
11-28-67
12-20-67
1-16-68
2-14-68
3-6-68
3-20-68
4-17-68
5-1-68
5-21-68
6-11-68
7-8-68
8-21-68
9-11-68
10-31-67
11-14-67
12-5-67
12-27-67
1-23-68
2-28-68
3-27-68
4-9-68
5-7-68
5-28-68
6-19-68
8-7-68
9-5-68
9-18-68
10-3-68
Concentration of radon 222
(pCi/liter)
USAEC

0.23



0.30
0.15
0.29
0.51

0.20
0.38



0.69



0.18



0.99

0.22


0.21



0.26
0.23


0.40
0.30
0.40



± 0.01



± 0.02
± 0.02 0.17 ± 0.01
± 0.02
± 0.04

± 0.01 0.19 ± 0.02
± 0.02



± 0.04 0.73 ± 0.05



± 0.02 0.17 ± 0.01



± 0.04

i 0.01 0.20 ± 0.02


± 0.01 0.26 ± 0.01



± 0.01
± 0.01


± 0.02
± 0.01 0.22 ± 0.02
± 0.02 0.45 ± 0.03


SWRHL
0.11

0.31
0.28
0.17



0.32
0.17


0.17
0.99
0.48 0.46

0.61
0.27
0.80

0.24
0.26
0.24

0.15

0.42
0.82

0.84
0.85
0.42


0.29
0.22



0.17
0.26
52

-------
                      TABLE  I (CONT)
      Midpoint of
Sta- sampling time
Concentration of radon 222
       (pCi/liter)
W.LU1
no.
93














94
















95







hour
1450
1045
1335
1335
1335
1115
1005
1100
1145
1120
1045
1000
1115
1045
0900
1427
1000
1122
1010
1225
1045
1135
0945
1125
1035
1040
1050
1025
1000
1235
1200
1000
1000
1047
1055
0825
1130
1015
1050
1040
day
10-31-67
12-12-67
1-11-68
1-30-68
2-20-68
3-13-68
4-24-68
4-3-68
5-14-68
6-5-68
6-25-68
7-18-68
7-31-68
8-28-68
10-5-68
10-27-67
11-7-67
11-28-67
1-16-68
2-14-68
3-13-68
3-20-68
4-17-68
5-1-68
5-21-68
6-11-68
7-2-68
7-31-68
8-21-68
9-11-68
9-25-68
10-9-68
11-14-67
12-5-67
1-23-68
2-7-68
2-28-68
3-20-68
4-9-68
5-7-68
USAEC
0.55
0.25
0.25
0.19
0.16





0.30
0.38
0.20


0.58
0.83
0.57

0.60
0.17


0.29
0.07
0.24


O.'U
0.24
0.69
0.55
0.52
0.20
O.S8
0.58
0.32



± 0.02
± 0.02
± 0.02
± 0.02
± 0.01





± 0.02
± 0.02 0.42 ± 0.02
± 0.01


± 0.03 0.60 ± 0.02
± 0.03 0.95 ± 0.04
± 0.03

± 0.03
± 0.02


± 0.02
± 0.01
± 0.01


± 0.01 0.12 ± 0.02
± 0.01 0.29 ± 0.02
± 0.02 0.71 ± 0.03
± 0.03 0.57 ± 0.03
± 0.02
± 0.01
± 0.03
± 0.03
± 0.02



SWRHL





0.22
0.06
0.25
0.07
0.20



0.26
0.54



0.94


0.46
0.13



0.50
0.37









0.17
0.22
0.19

-------
                                 TABLE I  (CONT)
                     Midpoint of           Concentration of radon 222
               Sta- sampling time                 (pCi/liter)
               tion	
               no.   hour     day          USAEC                    SWRHL
95 1120
1045
1350
1100
1205
1300
1030
1435
96 1417
1045
1155
1200
1400
1320
1225
1205
1155
1235
1145
0915
1200
1525
2230
5-28-68
6-19-68
7-11-68
7-24-68
8-7-68
8-14-68
8-28-68
9-18-68
10-29-67
11-21-67
12-12-67
1-7-68
1-30-68
2-20-68
3-13-68
4-3-68
5-14-68
6-5-68
6-25-68
7-18-68
8-14-68
9-25-68
10-8-68


0.20
0.10

0.14
0.16

0.17

0.12

0.12
0.17
0.06
0.09

0.22
0.25

0.28


± 0.02 0.19 ± 0.01
± 0.01 0.16 ± 0.04

± 0.01 0.16 ± 0.02
± 0.01

± 0.02

± 0.01

± 0.01 0.12 ± 0.01
± 0.01
± 0.01
± 0.01

± 0.02 0.42 ± 0.03
± 0.02

± 0.02 0.27 ± 0.02
0.21
0.21
0.20
0.28


0.21


0.15

0.45

0.21




0.24
0.38 0.31

0.44

               Location of radon sampling  stations in Salt Lake City, Utah:

               81         Center of tailings  (700 West 3300 South).
               82"         Sewage Plant,  650 West 3300 South.
               83         American Smelting £ Refining Company, Hygiene %
                            Research Department, 3422 South 7th West.
               84         D.  B.  Harmon,  1080 West 5300 South.
               85         Bonneville News  Company, 965 Beardsley Place.
               86         J.  A.  Skogg, 1501 West Claybourne Avenue.
               91         D.  Bolton, 570 West 3740 South.
               92         Chris  Body and Paint Shop  Inc., 3152 South 2d West.
               93         Tuloma Gas Products Co., 201 West 27th South.
               94         Aluminum Manufacturing $ Supply Co., 1809 South 8th
                            West.
               95         A.  H.  Higham,  105 Westwood Avenue.
               96         Salt Lake City Health Department, 610 South 2d East.
54

-------
                         TABLE  II

                AVERAGE CONCENTRATIONS  OF
              RADON  222 FOR  SALT .LAKE CITY,
               UTAH  (1967-1968 PHS Study)
 Station
   and
 location.
Number of
 sanples
    Concentration of radon 222
           (pCi/liter)

         Standard
Average  deviation     Range
     81
     82C
     83
     84
     85
     86
     91
     92
     93
     94
     95
     96
    16
    15
    16
    15
    13
    13
    15
    14
    14
    17
    17
    16
 10
  4.2
   .43
   .39
   .68
   .28
   .44
   .42
   .24
   .44
   .29
   .22
6.4
1.4
 .31
 .24
 .30
 .14
 .30
 .24
 .12
 .26
 .16
 .12
1.6
2.3
 .09
 .21
 .23
 .11
 .15
 .17
 .06
 .07
 .13
 .06
22
 6.6
 1.3
 1.1
 1.4
  .54
  .99
  .85
  .55
  .94
  .60
  .45
             stations.

           station  is not actually onpile, but adjacent to the
pile at the sewage  plant.
                                                                55

-------
                                TABLE III

                THERMOLUMINESCENT  DOSIMETER  RESULTS
                         (1967-1968 PHS Study)
         Location               Station   Net average exposure rate
                                                 (mR/hour)
         Salt Lake City, Utah       81a             1.1
         (June  17 to July  17,     85               .01
         1968)                     86               .01
                                   91               .01
                                   96               .01
              aOnpile stations.
56

-------
                                                        TABLE  IV
                                                 AIR SAMPLING RESULTS
#75002 - SEWAGE TREATMENT PLANT (INDOOR)
LOCATION: SALT LAKE CITY, UTAH YEAR
DATE
11/3/70
11/5/70
11/5/70
11/5/70
11/5/70
11/5/70
11/5/70
11/6/70
11/6/70








TIME
1830
1200
1400
1600
1700
1800
2330
0930
1130








COLLECTION
PERIOD
(MINUTE)
5
5
5
5
5
5
5
5
5



* Numbe

**0nly


TIME INTEGRATED
COUNTS PER MINUTE
1(2-5)
(820) *
(33)
(59)
(29)
(41)
(177)
(60)
(48)
(46)



•s in pare

samples *


I (6-20)
(578)
(32)
(35)
(25)
(20)
(121)
(36)
(31)
(42)



itheses a

ith Radon


1(21-30)
(603)
(21)
(32)
(23)
(24)
(no)
(31)
(33)
(42)
~ '


•e counts

analysis


c
(dpm/cpm)
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22

Average**

per minute

ncluded.


V
I/min
30.4
30.4
30.4
30.4
30.4
30.4
30.4
30.4
30.4



W.L.
0.02940
0.00070
0.00160
0.00100
0.00130
0.00520
0.00150
0.00160
0.00190

0.00213

•btainid at five








1970
RADON DAUGHTER
CONCENTRATIONS
(pCi/1)
Ra-A [Ra-B
8.61
LT0.01
0.58
0.12
0.69
1.37
0.52
0.58
0.24

0.52

minutes,




3.56
0.04
0.13
0.12
0.14
0.50
0.11
0.19
0.26

0.20

15 minu



i 	
Ra-C
0.54
0.20
0.08
0.07
-T8.CH
0.31
0.11
0.02
0.08

0.17

:es. a




CONCEN-
TRATION
RATIOS
B/A
).41
_
).22
1.00
0.20
0.36
0.21
D.33
1.08

.

id 3(




C/A
0.06
_
0.14
0.58
4.T.01
0.23
D.21
D.03
P. 33



minu'




RADON
:>Ci/l
N.S.
1.20
0.91
0.82
N.S.
5.20
N.S.
N.S.
N.S.

2.03

es posl




EQUILIBRIUM
RATIOS
(RADON=1.0)
A
_
0.008
0.637
0.146

0.263
_
_
.

0.256

colled




g
.
0.033
0.143
0,146

0.096
_
_
_

Q.09?

ing pt




C-C'

0.167
0.088
0.085

0.060
—
.
_

0.084

-1od).




PERCENT
EQUILIBRIUM

5.83
17.58
12. ?0

10.00
_
_
_

10.50






Ul

-------
                              TABLE V
INTEGRATED WORKING LEVELS - SALT LAKE CITY, UTAH,  SAMPLING STATIONS
LJ)C AT I ON
42326-01
42326-02
* £326-03
42326-04
43328-01
43328-0?
42328-03
42328-04
42329-01
42329-82
42329-03
42329-04
42330-01
42330-02
42330-03
42330-04
75001-01
75001-6?
75001-01
75001-04
75001-05
75001-0'.
7SOOI -07
75001-01
75002-01
75092-02
75002-03
75002-04
75002-06
75002-07
7500Z-09

75003-01
75003-02*
75003-028
75003-03
75003-0*
75003-05
7S003-06
75003-07
75003-Ofl
75004-01
75004-02
75004-03
75004-0*
75004-05
53
CORRECTED
VOLUME
18287
6155
1781?
15395
18287
6312
17*39
16065
18632
5858
17079
12757
19704
2131
19J65
16969
3954
7643
6885
6760
1 OT82
9515
ino?7
6550
603*
71524
6930
9739
8871
97*1
62*0

2987
429
306
1353
4H2S
4925
4420
382*
28*6
3687
940
5331
8726
5*1 7

PATE
START
5/ 3/73
5/ 9/73
5/11/73
5/17/73
5/ 3/73
5/ 9/73
5/JO/73
5/17/73
5/ 3/73
5/ 9/73
5/11/73
5/17/73
5/ 3/73
S/ 9/73
5/11/73
5/17/73
5/ 2/73
S/ 4/73
5/ 7/73
5/ 9/73
5/11/73
5/14/73
5/1 7/71
5/20/73
S/ 2/73
5/ 7/73
5/ 9/73
5/11/73
5/14/73
5/17/73
5/20/73

5/ 2/73
5/ 4/73
5/ 6/73
5/ 7/73
5/ 9/73
5/11/73
S/l*/73
5/17/73
5/20/73
5/ 2/73
5/ 4/73
S/ 9/73
5/17/73

P^TE
FINISH
5/ 9/73
5/11/73
5/17/73
5/22/73
S/ 9/73
5/11/73
5/17/73
5/22/73
5/ 9/73
S/H/73
5/17/73
5/22/73
S/ 9/73
5/11/73
5/17/73
5/22/73
S/ 4/73
5/ 6/73
5/ 9/73
5/11/73
5/14/73
5/17/73
5/?0/71
5/22/73
5/ 4/73
5/ 6/73
5/ 9/73
5/11/73
5/17/73
5/20/73
5/22/73

5/ */73
S/ 5/73
S/ 6/73
5/ 9/73
5/11/73
5/J*/73
5/17/73
5/20/73
5/22/73
5/ 4/73
5/ 5/73
5/11/73
5/20/73
5/2?/73

OFF
FLOW
(LPMI
2.2
2.5
2.5
2.5
2.2
2.6
?z.3.
2.5
2.3
2.4
2.3
2.5
2.5
0.0
2.5
2.'
2.9
2.7
2.7
2.8
2. r
2.6
2.6
2.7
2.6
2.6
2.7
2,6
2.5
2.5
2.7

2.0
0.0
2.5
0.0
2.7
1.2
2.6
2.6
2.3
2.3
0.0
2.3
2.4
2.5

TIME
(HOURS)
146.3
48.3
1*2.5
120.8
146.3
*7.7
_l*t»l _
121.*
146.2
47.8
142.2
104.1
1*6.2
28.0
142.2
121.5
26.9
55.7
*9.3
44.4
74.2
71.9
74. •.
48.6
44,0
45.5
50.5
68.3
75.0
46.3

29.0
a. 3
2.5
20.4
35.8
50.2
33.*
28.9
25.8
32.0
15.3
43.5
71.2
44.2

•(PRJUMft CM1BINED TOTAL TOTAL NO. AyEjlft
LEVELS WORKING TIME WORKING or MOKKINC
LEVEt J.EVELS SAM. LEVEL
.01971
.02110 ~
.027*3
.92313 " »S7.9 .09137 * .o?28
.0159*
.02370
,«21*3
.02470 4S7..7 .08577 * ,OJH
.12817
.11*20
.13370
.08768 4*0.3 .*6375 * . ||59
.46676
.56602 NV-1
.3630*
.55888 409.9 1.49869 3 .H96
.00352
.00644
.00903
.01293
.01086 "" ~ 	 "
.01599
.01081
.01021 449.4 .060)9 8 .0100
.00*7*
.ossa*
•00691
.00972
•01237
.00805
.00701 *56.8 .06180 a .007'^

.00*99
.03666 NV-1
.00131
.01679 NV-1
.00675
. 0 1 38*
.00272
.90594
.00376 205.6 .03931 7 •«"
.0033*
.01670 NV-1 ___ 	 	
.00756
.01090
.00831 190.9 .mpn 4 .»0'5


-------
       TABLE VI
MR S7-1?LIN\~ RESULTS
LOCATION': >75001 - TAILINGS PILE FLOOR OF PIT, SALT LAKE CITY, UTAH yr?-.
DATE
5/2/73
5/2/73
5/?/73
5/3/73
5/3/73
5/3/73
5/3/73
5/3/73
5/3/73
5/4/73
5/4/73
5/4/73
5/9/73
5/9/73
5/9/73
5/9/73
5/10/73
TIME
1500
1910
2200
0200
0600
1000
1430
1745
2200
0150
0600
1010
0930
1306
1640
2110
0045
COLLECTION
PERIOD
(MINUTE)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
TIME INTEGRATED
COUNTS P-R MINUTE
1(2-5) I (6-2or I m-io1)
61
80
236
486
190
102
69
(21)*
404
86
946
55
118
59
56
418
680
226
215
645
1153
547
372
207
(11)
1069
326
2293
182
431
186
191
1136
1765
145
93
321
592
281
201
121
(ID
559
171
1155
106
244
99
86
581
886
	 1
c
(dpm/cpi"1 )
1.22
1.22
1.2?
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
V
i /join
30.84
31.10
30 4fi
30,08
31.36
29.70
29.95
28.80
28.75
29.12
29.00
29.24
28.14
24.46
24.92
30.17
29.40
W L
0.00073
0.00044
o onifit;
0.00337
0.00138
0.00096
0.00065
0.00062
0.00316
0.00081
0.00669
0.00056
0. 00127
D. 00061
D. 00045
0.00306
0.00487
1973 paGE 1 OF 3
RADON DAUGHTER
CONCENTRATIONS
(PCI/1)
Ra-A foa-P Pa-r
0.119
0.121
n 475
1.355
0.351
0,095
0.165
0.292
1,014
0.044
2.577
0.108
0.152
0.119
0.023
0.909
0.100
0.009
n iin
0.239
0.107
0.096
0.072
0.053
0.251
0.075
0.446
0.063
0.141
"•
0.055
0.017
0.228
1.610 J0.330
0.026
0.072
0.160
0.204
0.128
0.102
0.031
0.011
0.226
0.102
0.475
0.034
0.106
0.056
0.090
0.259
0.411
CONCEN-
TRATION
RATIOS
B/A r /a
0.84
0.04
fl ?
0 If
n n
1 01
0.43
O.lf
n ?s
1.71
0.17
0.59
0.93
0.46
0.77
0.25
0.21
0.22
0.59
0.34
Q. 15
0.37
1.08
0.19
0.04
n 7?
2.33
0.18
0.31
0.70
0.47
3.99
0.29
0.26
RADON
DCi /1
4.0
3.6
N.S.
12.0
N.S.
2.2
N.S.
2.3
*l £
1.7
N.S.
1.4
2.8
N.S.
2.2
N.S.
21.0
EQUILIBRIUM
RATIOS
( RADON' = 1 . 0)
A « r r '
0.03
0.03

0.11

0.04

0.13
.
0.03
-
0.08
0.05
-
0.01
-
0.08
0.03
0.00

0-02

0.04

0.02

0.04
-
0.05
0.05
-
0.01
-
0.02
0.01
0.02

0.02

n.ns

.00

0.06
-
0.02
0.04
-
0.04
-
0.02
PERCENT
EQUILIBRIUM
1.8
1.2

?.R

4,4

2.7

4.8
-
4.0
4.5
-
2.0
-
2.3

-------
    TABLE VI  (Cont. )
AIR SAMPLING RESULTS
LOCATION': #75001 - TAILINGS PILE FLOOR OF PIT, SALT LAKE CITY, UTAH YEAR
DATE
5/10/73
5/10/73
5/10/73
5/10/73
5/10/73
5/11/73
5/11/73
5/11/73
5/20/73
5/20/73
5/20/73
5/20/73
5/21/73
5/21/73
5/21/73
5/21/73
5/21/73
TIME
0445
0920
1230
1740
2110
0045
0445
0853
0950
1330
1808
2120
0038
0520
0910
1300
1710
COLLECTION
PERIOD
(MINUTE)
5
*>
5
")
5
•>
5
•;>
5
5
5
5
5
•}
5
5
5
TIME INTEGRATED
COUNTS PER MINUTE
1(2-5) t(6-20)
5054
123
65
71
2498
729
195
91
39
52
(34)
273
226
245
76
(23)
62
12121
387
204
219
5894
2216
548
317
133
167
(16)
572
462
474
196
(13)
201
1(21-30)
6788
202
100
113
3288
1102
305
152
56
93
(15)
287
242
239
116
(8)
100
c
(dpm/cpm)
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
V
L/min
28.52
27.00
28.08
28.08
28.30
28.08
27.68
28.52
27.64
28.19
27_fi4_
28.52
28.30
26.83
28.63
30.30
28.14
W.L.
0.04169
0. 00111
0.00051
0.00060
0.02050
0.00579
0.00178
0.00072
0.00025
0.00050
Q_omsa_
QJM184
0.00160
D. 00171
1.00070
3. 00037
0.00051
1973 PAGE 2 OF 3
RADON
CONCE
(
DA'JGHI
f^TJa^K;
pCi/1)
nER
)NS
Ra-A JRa-3 1 Ra-C
16.502
0.212
0.087
0.121
8.338
1.165
0.513
0.049
0.001
0.099
M95
O.Q17
0,821
0.956
0.245
0.114
0.075
3.836
0.095
0.034
0.049
1.855
0.406
0.173
0.045
0.002
0.051
0,057
o.m
0.114
0.103
0.075
LT.001
0.037
1.403
o.m
0.067
0.061
0.669
0.679
0.102
0.117
0.063
0.038
4LQ£6_
0.087
0.049
0^55
0.018
0.079
0.065
CONCEN-
TRATION
RATIOS
B/A
0.23
0.45
0.39
0.40
0.22
0.3E
0.34
0.90
2.65
0,5?
0,12
0 1?
Q.14
0..11
0,30
LT.O"
0.48
C/A
0.09
0.53
0.77
0.51
0.08
0.58
0.20
2.38
67.6
r£L2B_
^JLflS.
0.09
0.06
0.06
0,07
0.69
0.87
RADON
oCi/1
N.S.
1.9
N.S.
2.1
N.S.
9.8
N.S.
0.91
1.1
N S
6.6
N.S.
7.1
N.S.
2.2
N.S.
EQUILIBRIUM
RATIOS
(RADON=1.0)
A
-
0.11
-
0.06
-
0.12
-
0.05
LT.01

_J3-08_

0.12

0.11
-
2.2 0.03
B JC-C'
-
0.05
-
0.02
-
0.04
-
0.05
LT.01

0,01

0.02

0 03
-
0.02
-
0.06
-
0.03
-
0.07
-
0.13
0.06

^i\m

-0-01

o m
-
0.03
PERCENT
EQUILIBRIUM
-
5.8
-
2.9
-
5.4
-
7.9
2.3

1 a.

? i

3 ?
-
2.3
                                                                     o

-------
                                                      TABLE  VI    (Cont. )
                                                    AIR SAMPLING RESULTS
LOCATION:
DATE
5/21/73
5/22/73
5/22/73
5/22/73


TIME
2104
0058
0513
0920


075001 - TAILINGS PILE FLOOR OF PIT, SALT LAKE CITY, UTAH YEAR
COLLECTION
PERIOD
(MINUTE)
5
5
5
5


TIME INTEGRATED
COUNTS PER MINUTE
1(2-5)
237
1387
1764
174


? (6-20)
581
2874
4132
495


I (21-30)
314
1516
2110
270


C
(dpm/cpm)
1.22
1.22
1.22
1.22

AVERAGE**
V
L/min
28.30
28.36
28.52
28.91


W.L.
0.00190
0.00996
0.01274
0.00149

0.00180
1973 PAGE 3 OF 3
RADON DAUGHTER
CONCENTRATIONS
(pCi/1)
Ra-A
0.721
4.994
5.246
0.410

0.596
Ra-B
0.161
0.727
0.881
0.138

0.137
Ra-C
0.091
0.304
0.768
0.099

0.131
CONCEN-
TRATION
RATIOS
B/A
0.2;
0.1!
0.17
0.34

_
C/A
0.13
0.06
0.15
0.24

_
RADON
DCi/1
N.S.
31.0
N.S.
2.6

5.75
ECU I]
FJ
(RA[
A
-
0.16
-
0.16

0.10
_,IBR!l
^TIOS
)ON~~ 1

B
-
0.02
-
0.05

0.02
J.V
0)
f C "

-
0.01
-
0.04

0.02
PERCENT
EQUILIBRIUM
-
3.2
-
5.7

3.13
 *Numbers  in parentheses are  counts per minute  (obtained at'five minutes, 15 minutes, and 30 minutes post collecting period).
**0nly those samples with radon analysis included in average.

-------
      TABLE VII
AIR SAMPLING RESULTS
LOCATION: #75002 — Sewage Treatment Plant, Salt Lake City, Utah YEAR
DATE
5/2/73
5/2/73
5/2/73
5/3/73
5/3/73
5/3/73
5/3/73
5/3/73
5/3/73
5/4/73
5/4/73
5/4/73
5/9/73
5/9/73
5/9/73
5/9/73
5/10/73
TIME
1330
1752
2250
0240
0640
0944
1510
1830
2300
0240
0600
0930
0845
1343
1745
2235
0130
COLLECTION
PERIOD
(MINUTE)
5
•;>
">
5
5
5
5
5
5
5
5
5
5
5
5
5
5
TIME INTEGRATED
COUNTS PER MINUTE
1(2-5)
(23)*
60
609
291
199
74
41
55
341
58
591
25
96
34
34
770
451


(10)
160
1190
860
471
280
133
202
673
187
1852
76
301
114
103
1786
1344
1(21-30)
(10)
73
633
452
244
147
65
106
383
101
924
46
186
58
46
1025
670
C
(dpm/cpm)
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
V
L/min
29.46
32.72
30.20
30.83
28.22
29.57
31.21
31.60
29.49
30.37
29.49
30.64
28.69
28.72
29.49
30.20
1.22 28.92
W.L.
0.00058
0.00034
0.00405
0.00226
0.00149
0.00068
0.00029
0.00047
0.00253
0.00050
0.00456
0.00024
0.00105
0.00029
0.00022
0.00609
0.00346
W* PAGE 1 OF 3
RADON DAUGHTER
CONCENTRATIONS
(pCi/1)
Ra-A
0.355
0.100
2.195
0.541
0.601
0.038
0.041
0.036
1.328
0.092
0.809
0.062
0.253
0.038
0.036
2.547
0.755
Sa-3
0.039
0.013
0.295
0.191
0.109
0.063
0.020
0.043
0.221
0.047
0.328
0.029
0.130
0.023
0.007
0.584
0.243
Ra-C
0.005
0.045
0.078
0.196
0.085
0.086
0.041
0.057
0.010
0.044
0.552
0.009
0.035
0.035
0.038
0.134
0.389
CONCEN-
TRATION
RATIOS
B/A
0.11
0.13
0.13
0.35
0.18
1.65
0.47
1.1£
0.17
0.51
0.41
0.4£
0.51
0.61
0.21
0.23
0.32
C/A
0.01
0.45
0.04
0.36
0.14
2.24
0.99
1.57
0.01
0.48
0.68
0.15
0.14
0.94
1.07
0.05
0.52
RADON
sCi/1
1.4
0.65
NS
3.0
NS
1.4
NS
1.5
NS
1.1
NS
1.1
1.5
NS
0.64
NS
3.8
EQUILIBRIUM
RATIOS
(RADON=1.0)
A
0.25
0.15
—
0.18
--
0.03
..
0.02
—
0.08
—
0.06
0.17
--
0.06
—
0.20
B
0.03
0.02
—
0.06
--
0.05
—
0.03
~
0.04
--
0.03
0.09
—
0.01
--
0.06
c-c'
.T.01
0.07
—
0.07
--
0.06
—
0.04
—
0.04
—
0.01
0.02
—
0.06
--
0.10
PERCENT
EQUILIBRIUM
4.1
5.2
--
7.5
—
4.9
~
3.1
—
4.5
—
2.2
7.0
—
3.4
—
9.1

-------
                                                      TABLE VII (Cent. )
                                                    AIR SAMPLING  RESULTS
LOCATION: #75002 -- Sewage Treatment Plant, Salt Lake City, Utah YEAR
DATE
5/10/73
5/10/73
5/10/73
5/10/73
5/10/73
5/11/73
5/11/73
5/11/73
5/20/73
5/20/73
5/20/73
5/20/73
5/21/73
5/21/73
5/21/73
5/21/73
TIME
0525
0950
1340
1730
2145
0135
0523
0930
1040
1247
1725
2205
0055
0530
0900
1345
COLLECTION
PERIOD
(MINUTE)
5
5
5
5
5
<
•)
5
•)
5
5
5
5
5
5
5
TIME INTEGRATED
COUNTS PER MINUTE
1(2-5)
1128
59
25
(3)
96
582
135
60
49
21
62
169
173
331
52
24
5/21/73 J1630 5 24
I (6-20)
2947
196
103
(13)
302
1548
437
250
142
91
212
435
483
719
173
91
51
I (21-30)
1708
114
58
(6)
169
937
258
112 _j
77
53
118
271
303
395
86
51
37
C
(dpm/cpm)
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
V
1/min
28.69
28.72
28.46
28.46
27.41
28.71
29.49
29.46
29.25
26.41
26.03
28.49
25.92
25.35
26.66
26.30
24.84
W . L .
0.01013
0.00061
0.00028
0.00006
0.00095
0.00559
0.00137
0.00044
0 . 00042
0.00028
0.00067
0.00167
3.00199
3.00286
3.00045
0.00028
D. 00029
1973 PAGE 2 OF 3
RADON DAUGHTER
CONCENTRATIONS
(pCi/1)
Ra-A
3.454
0.116
0.012
LT.001
0.202
1.869
0.288
LT.001
0.108
0.009
0.105
0.594
0.616
1.326
0.058
0.025
0.135
Ra-B
1.042
0.069
0.032
0.003
0.098
0.630
0.158
0.017
0.038
0.035
0.070
0.195
0.242
0.240
0.033
0.031
0.039
Ra-C
0.343
0.037
0.029
0.137
0.067
0.126
0.072
0.113
0.030
0.025
0.056
0.018
0.034
0.074
0.061
0.026
LT.OO'
CONCEN-
TRATION
RATIOS
B/A
0.3(
0.60
2.78
__
0.43
0.34
0.55
--
0.35
3.91
0.67
0.33
0.39
0.18
0.57
1.21
0.29
C/A
0.10
0.32
2.47
__
0.33
0.07
0.25
--
0.27
2.86
0.54
0.03
0.05
0.06
1.06
1.03
LT.01
RADON
aCi/1
NS
0.57
NS
0.99
NS
6.7
NS
1.1
0.68
NS
2.0
NS
2.5
NS
1.0
NS
1.0
EQUILIBRIUM
RATIOS
(RADOK=1.0)
A
—
0.20
	
LT.01
—
0.28
__
LT.01
0.16
—
0.05
—
0.25
--
0.06
--
0.14
3
__
0.12
__
0.00
—
0.09
_-
0.02
0.06
—
0.04
--
0.10
--
0.03
--
0.04
C-C
,_
0.07
--
0.14
_-
0.02
—
0.10
0.04
—
0.03
--
0.01
--
0.06
--
LT.01
PERCENT
EQUILIBRIUM
--
10.7
._
0.61
--
6.6
_-
4.0
6.2
--
3.4
—
8.0
--
4.5
--
2.9
CT>

-------
  TABLE VII (Cent.)
AIR SAMl'LIKo  RESULTS
LOCATION: 175002 -- Sewag
DATE
5/21/73
5/22/73
5/22/73
5/22/73
AVERAGE












TIME
2150
0110
0523
0850
**












COLLECTION
PERIOD
(MINUTE)
5
5
5
5













e Treatment Plant, Salt Lake City, Utah YEAR
TIME INTEGRATED
COUNTS PER MINUTE
1(2-5)
91
654
1398
180


* Num
and
** Onl;








I (6-20)
237
1835
3673
461


>ers in
JU mlnu
r sample








1(21-30)
119
1013
2071
247


parenthe:
tes post
s with TI








C
(dpm/cpm)
1.22
1.22
1.22
1.22


es are cc
coilectir
don analy








V
L/min
24.79
25.35
24.32
23.65


unts i
g pen
sis ir








W.L.
0.00077
0.00645
0.01430
0.00174
0.00136

er minu"
od ) .
eluded.








1973 PAGE 3 OF 3
RADON DAUGHTER
CONCENTRATIONS
(pCi/1)
Ra-A
0.254
1.853
4.788
0.606
0.368

e (obta










Ra-B
0.053
0.612
1.390
0.147
0.129

Lned at










Ra-C
0.066
0.386
0.623
0.100
0.095

five










CONCEN-
TRATION
RATIOS
B/A
0.2'
0.33
0.2S
0.24


mil










C/A
0.26
0.21
0.13
0.17


utes










RADON
DCi/1
NS
9.2
NS
3.2
2.14

15 m










EQUII
Rl
(RAI
A j
—
0.20
—
0.19
0.17

nutes,










.IBRK
VTIOS
1OM— 1

B
—
0.07
—
0.05
0.06












JM
0)
c-c'
—
0.04
—
0.03
0.04












PERCENT
EQUILIBRIUM
—
7.0
—
5.4
6.36













-------
                                                                     TABLli  VIII

                                                              AIR SAMPLING RESULT.-:
               BUSINESS BUILDINGS  (INDOOR)  SALT LAKE  CITY. UTAH
   LOCATION:   (142326, 42328.  42329 and 42330, Respectively)
YEAR;   1973
DATE
5/21/73
5/21/73
5/21/73
5/21/73
TIKE
1010
1115
1035
1045
COLLECTION
PERIOD
(MIKUTE)
•)
5
">
")
TIKE INTEGRATED
COUNTS PER MINUTE
1(2-5)
707
850
203
1264
I (6-20)
2505
3017
655
3199
I (21-30)
1366
1688
398
1817
C
(dpm/cpiri)
1.22
1.22
1.24
1.22
V
L/min
26.03
27.64
27.41
26.66
W.L.
0.00760
0.00896
0.00234
0.01168
RADON DAUGHTER
CONCENTRATIONS
(pCi/1)
Ra-A
0.931
1.191
0.517
4.210
p.a-B
0.765
0.960
0.285
1.136
Ra-C
0.739
0.768
0.098
0.424
CONCEN-
TRATION
RATIOS
3/A
o.s;
O.B'
0.5!
0.2:
C/A
0.79
0.64
0.19
0.10
RADON
DCi/1
3.0
4.1
1.6
18.0
Ecui:
R;
(RA:
/-„
0.31
0.29
0.32
0.23
.11:::
>:•.::=!

0.25
0.23
0.18
0.06

C — C'
0.25
0.19
0.06
0.02
PERCENT
EQUILIBRIUM
25.3
21.9
14.6
6.5
en

-------
                                    TABLE IX
                     INTEGRATING RADO:i AIR SAMPLING  RESULTS
                             SALT LAKE CITY, UTAH

    LOCATIO!,':  #75001 - TAILINGS PILE FLOOR OF PIT   YEAR:  1973
DATE./TLVE "Oil"
5/2/73
5/4/73
5/7/73
5/9/73
5/11/73
5/14/73
5/17/73
5/20/73
1500
1015
0830
1000
0920
1110
0915
-
DATS/TIME "OFF"
5/4/73
5/6/73
5/9/73
5/11/73
5/14/73
5/17/73
5/20/73
5/22/73
1010
1605
0947
0910
0915
0720
0750
-
MEASURED
RADCN i;: ->ci/i
2.3
4.1
No Sample
9.3
6.3
6.8
6.6
No Sample
                                             Average
5.9
                                 TABLE  X
                  INTEGRATING RADON AIR SAMPLING  RESULTS
                          SALT LAKE.CITY,  UTAH

  LOCATION:  #75002 - SEWAGE TREATMENT PLANT    YEAR:  1973
DATE/TI?.:E "ON"
5/2/73
5/4/73
5/7/73
5/9/73
5/11/73
5/14/73
5/17/73
5/20/73
1330
0930
1010
1300
0955
1140
0800
1100
DATE/TIME "OFF"
5/4/73
5/6/73
5/9/73
5/11/73
5/14/73
5/17/73
5/20/73
5/22/73
0930
1530
-
0945
1130
0745
0730
0900
Average
MEASURED
RADON IN Ti-Ci/l
2.4
1.7
No Sample
3.4
No Sample
7.8
3.8
2.9
3.67
66

-------
                               TABLE XI

                INTEGRATING  RADON AIR SAMPLING RESULTS
                        SALT LAKE CITY, UTAH
DATE/TIME "ON"
5/2/73
5/5/73
5/9/73
5/11/73
5/14/73
1225
1700
1045
1035
1025
DATE/TIME "OFF"
5/4/73
5/6/73
5/11/73
5/14/73
5/17/73
1100
1550
1012
0950
0710
MEASURED
RADON IN pCi/1
2.1
4.1
6.1
3.8
6.5
                                        AVERAGE:
                                                4.52
LOCATIONi
                     TABLE XII

      INTEGRATING RADON AIR SAMPLING RESULTS
             SALT LAKE CITY, UTAH

#75004 — West Side of Tailings Pile YEAR:  1973
DATE/TIME "ON"
5/4/73
5/9/73
5/17/73

1015
1100
1400
DATE/TIME "OFF"
5/6/73
5/11/73
5/22/73
1605
1150
1020
AVERAGE :
MEASURED
RADON IN sCiA
4.1
9-7
9.4
7.73
                                                                67

-------
                                           TABLE XIII
                                RADON SAMPLING METHOD COMPARISON
LOCATION* 175001, SALT LAKE CITY, UTAH DATE: May 1973
SAMPLING DATE
ON
5/2/73
3/9/73
5/20/73
WE RAGE:
OFF
5/4/73
5/11/73
5/22/73

AVERAGE*
RADON
(pCi/1)
3.89
5.82
7.54
5.75
INTEGRATED**
RADON
(pci/l)
2.3
9.3
NS
5.8
AVERAGE A
WORKING LEVEL
0.00107
0.00212
0.00220
0.00180
INTEGRATED*
WORKING LEVEL
0.00352
0.01293
0.01021
0.00889
AVERAGE
% EQUILIBRIUM
(5 MINUTE SAMPLES)
2.75
3.64
2.92
3.10

• AVERAGE
% EQUILIBRIUM
(INTEGRATED)
15.30
13.90
	
14.60
Average of 5 minute samples collected every eight hours during a 48-hour period.
P.n pCi/1 calculated for midpoint of collection during a 48-hour continuous sample.
Average W.L. obtained from the calculated radon daughters  (A, B, C-C") concentrations.
Measured with TLD air sampler.
oo
U3

-------
                                               TABLE XIV
                                    RADON SAMPLING METHOD COMPARISON
LOCATION: #75002 , SALT LAKE CITY, UTAH DATE: May 1973
SAMPLING DATE
01*1
5/2/73
5/9/73
5/20/73
AVERAGE :
OFF
5/4/73
5/11/73
5/21/73

AVERAGE*
RADON
(pCi/1)
1.45
2.19
2.80
2.15
INTEGRATED**
RADON
(pCi/1)
2.4
3.4
2.9
2.9
AVERAGED
WORKING LEVEL
0.00072
0.00163
0.00172
0.00136
INTEGRATED1"
WORKING LEVEL
0.00474
0.00717
0.00701
0.00631
AVERAGE
% EQUILIBRIUM
(5 MINUTE SAMPLES)
4.97
7.44
6.14
6.18

AVERAGE
% EQUILIBRIUM
(INTEGRATED)
19.75
21.09
24.17
21.67
*   Average  of  5 minute  samples  collected  every eight hours during a 48-hour period.
**  Rn pCi/1 calculated  for midpoint  of  collection during a 48-hour continuous sample.
^    Average  W.L. obtained  from the  calculated radon daughters  (A, B, C-C') concentrations.
t    Measured with TLD  air  sampler.
       en

-------
                                            TABLE XV

                   COMPARISON OF TLD AND E500B GAMMA RADIATION EXPOSURE  RATES
                                VITRO URANIUM MILL TAILINGS PILE
                                     SALT LAKE CITY,  UTAH
NORTH TO
SOUTH GRIE
1
3
5
7
9
10
11
12
13
WEST TO EAST GRID
i
0.28* (0.25)
0.38 (0.30)
1.01 (1.0)
0.31 (0.30)
0.46 (0.5)
Business
Buildings

3
0.34 (0.4)
1.58 (1.3)
1.22 (1.1 )
0.39 (0.4)
1.52 (1.2)
0.86 (0.8)

1.13 (0.95)
5
0.30 (0.2)
0.26 (0.2 )
0.35 (0.5)
0.42 (0.4)
2.24 (2.0)
0.80 (0.7)

0.69 (0.8)
7
9 1 11
13

Suburban Sewage
Treatment Plant
0.35 (0.35)
0.64 (0.7)
0.60 (0.7)
0.68 ( 0.6 )
0.80 (0.5 )

0.56 (0.5)
0.41 (0.4)
0.82 (0.6)
0.63 (0.6)

0.05 (0.6)
0.30 (0.3)
0.62 (0.6)
0.29 (0.45)

0.39 (0.3)
0.12 (0.18)
0.58 (0.15 )
0.21 (0.15)

*A11 Measurements in mR/h
 0.00 TLD mR/h
 (0.00) E500B mR/h
                                                                                           o
                                                                                           r-

-------
                                                           TABLE XVI

                                         COMMUNITY GAMMA SCANNING AND SCREENING RESULTS


                  NUMBER OF                               FIELD                                  ANOMALIES  UNABLE TO SCREEN
                  STRUCTURES   ANOMALIES   ANOMALIES      FORKS     TAILINGS   HON-TAILINQS —	
                   SCANNED     REPORTED     CHECKED      PREPARED   LOCATIONS   LOCATIONS    REFUSAL   BAD ADDRESS  DUPLICATION
Salt Lake City
39,301»
245
247
226
71
                                                                                                           17
                                                                                                    15
*Total structures  scanned  i«  the  Salt  Lake Valley, including Magna, Utah,
                                                           TABLE  XVII

                                           COMPUTER CODES AND LOCATION NUMBERS USED
      STATE
NAME         CODE
                                   COUNTY
                                                CITY
           NAME
           CODE
                                          NAME
                                          CODE
                                             LOCATION NUMBERS ASSIGNED
Utah
                               Salt  Lake
                         035
                             Salt Lake City 1904
                                             42,295-42,476 and 42,511-42,554

-------
                            TABLE XVJII

        DETERMINED CAUSE OF REPORTED SCANNING ANOMALIES

                     SALT LAKE CITY, UTAH

             CAUSE
             IDENTIFICATION
NUMBER OF    LETTER FOR
LOCATIONS    TABLE IV	CAUSE OF ANOMALY/REMARKS	

    40             A           Unexplained - Nothing detected on property
                               to indicate a reason for the reported
                               anomaly.

    17             B           Bad address - Unable to find the location
                               reported  by the mobile unit.

     7             C           Refusal  - Occupant and/or owner refused
                               to allow  the survey.

     1             D           Radium dial instrument on property.

     4             F           "Shine"  from other reported anomaly.

    10             G           Uranium  ore on property.

    68             I           Natural  activity in brick walls or fireplaces

     1             K           Natural  activity in fertilizer.

     3             M           Natural  activity in gravel and/or soil.

     2             N           Natural  activity in stucco walls.

     2             0           Natural  activity in concrete walls in highwaj
                               underpass.

    20             P           Possible  tailings use - Unable to make
                               positive  field identification.

   (32)*           Q           Tailings  on property - Windblown from
                               tailings  pile.

    13             R           Tailings  deposit on property - Greater
                               than  ten  feet from a habitable structure.
    72

-------
NUMB'ER OF
LOCATIONS
                  SALT LAKE TABLE XVIII  (CONT)
CAUSE
IDENTIFICATION
LETTER FOR
TABLE IV
CAUSE OF ANOMALY/REMARKS
                               Tailings deposit on property - Under or
                               within ten feet of a habitable structure,

                               Uranium mill tailings pile - Mill area
                               screen.
   226 Total Screening Forms
#Not added into total - Windblown tailings locations are in both the
possible and determined tailings use locations.
                                                                  73

-------
                 TABLE XIX



ANOMALY OCCURRENCE IN SURVEYED COMMUNITIES
UTAH
COMMUNITY
Salt Lake City
FIELD
FORMS
PREPARED
226

CAUSE OF ANOMALY FROM TABLE III
UNKNOWN
ABC
40 17 7
6-4
RADIOACTIVE
SOURCE
OR ORE
D E F G H
1 4 10
15
NATURAL
RADIOACTIVITY
I J K L M N 0
68 1 322
76
TAILINGS
LOCATIONS
P Q R S T
20 13 37 1
71

-------
                APPENDIX B

       MOBILE GAMMA SCANNING REPORT

          SALT LAKE VALLEY, UTAH
    SUMMATION:  MOBILE RADIATION SURVEY
                Salt Lake City, Utah

SURVEY COMMENCEMENT DATE:  April 5-11, 1972


    CURRENT REPORT PERIOD:  April 5-11, 1972
       Survey Days            7.0

       Structures Surveyed    3,871

       Radiation Anomalies       88

       Miles Surveyed            54.90
                                                        75

-------
                                      MOBILE RADIATION SURVEY
-l
SALT LAKE CITY, UTAH
No.
1
2
3
4
5
6
7
a
9
10
11
12
13
14
15
16
17
18
1?
20
21
22
23
24
25
26
27
28
Bap
NE/4



























Coordinate
700W










500 W
580W
500W





900W








3300S










3300S
3740S
3600S

3500S


3440S
3300S
3340S



3440S
3340S


Address
Vacant Land, 700 W at 3300 So.
Vacant Land, 700 West St.
3422. 700 West Street
3415, 3410 South St.
Fire Engineering Co., 700 West St.
3363, 700 West St.
3349, 790 West St.
3341. 700 West St.
3327, 700 West St.
Address ?, 700 West St.
Address ?, 700 West St.
Westerner's Salvage, 500 W. St.
560, 3740 So. Street
Vacant Land, 500 West St.
3585, 500 West St.
3513,500 West St.
3499, 500 West St.
Vacant Lot, 500 West St.
Central Landscape, 500 West St.
3302, 900 West Street
3340, 900 West Street
3342, 900 West Street
3344, 900 West Street
Vacant Lot, 900 West Street
3432, 900 West St.
3347, 900 West St.
3339, 900 West St.
Address ?, 900 West St.
gackjround
Counts/Sec.
475
475
475
463
500
600
600
600
600
600
600
525
425
350
500
500
500
500
500
575
575
575
575
575
575
625
625
625
lai. Bed.
Count s/Sec.
2,313
1,475
650
725
788
1,663
838
1,213
1,925
1,825
2,183
788
525
488
1,150
2,500
5,525
9,835
9,250
1,225
1,000
975
800
750
963
775
1,500
1,625
Report Per.od: April 5 - 11, 1972
CosMnts
West side, Tailing Pile due north
120 feet north of 3422, 700 West Street


South of 3363, 700 West Street
South of Tailings Pile, East side
South of Tailings Pile, East side
South of Tailings Pile, East side
South of Tailings Pile, East side '
North of 3327, 700 West St.
Corner of 700 W and 3300 So., East side
Office Building
Drive
South of 3585, 500 West Street



North of 3499, 500 West St.

Southwest of Tailings Pile, West side



South of 3344, WO West St.
Drive
Southwest of Tailings Pile, East side
Drive
North of 3339, 900 West St.
11

-------
                                         MOBILE  RADIATION  SURVEY
                                                                                                   -2
, 	 ...,...«, SALT LAKE CITY, UTAH H.por t Per i od: April 5 - 11, 1972
Ko.
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
lap
NE/4



























Coord i net e
900W









900W
900W







1700W
900W

1300W
1000 W




3300S




3200S


3100S

2910S
2550S

2870S





2100S
2100S

3300S
3300S




Address
881, 3300 South Street
T^ilSW file. 900 West
Vacant Land, 900 West St.
Sierra Corp., 900 W. St.
Vacant Land, 900 W. St.
3237, 900 W. St.
3215, 900 W. St.
3195, 900 W. St.
Old Tailings Pond, 900 W. St.
Old Tailings Pond, 900 W. St.
Vacant Land, 900 W. St.
2550. 900 West St.
2560, 900 West St.
Grand Central Warehouse, 900 W. St.
Vacant Land, 900 W St.
Mill Creek, 900 W. St.
Vacant Land, 900 W. St.
Vacant Land, 900 W. St.
Vacant Land, 900 W. St.
Standard Station, 2100 So. St.
Address.72100 So.
989 Jewel Ave .
Vacant Lot, 3300 So . St .
Vacant Lot, 1000 West St.
999, 1000 West St.
Vflr-ant Lot-, 3300 SnnfJi Sr
949, 3300 South St.
Vacant Lot, 3300 South St.
Btck|t ound
Counts/Sic.
625
625
625
625
625
625
625
625
625
625
625
375
375
550
550
550
550
550
550
413
375
325
500
525
525
525
525
525
In. 0*11.
Counts/Sec.
1,400
3.300
4,600
4,500
5,450
6,000
7,700
10,200
23,750
14,750
1,088-2,900
525
588
913
1,300
1,700
5,400
6,200
2,000
3,400
488
47b
675
675
638
813
875
888
Consents

900 West and 3300 South. East side
South Salt Lake City Limits Sign
Tailings Pile due East
North of Sierra Corp .



North of 3195, 900 W. St., continuing 560 feet to Creek
From small creek north to Mill Creek, East side
From Mill Creek north to railroad, East side



South of Grand Central Warehouse
West side of road
From Mill Creek North to Small Creek, West side
260 feet north of Small Creek, West side
West of Tailings Pile at 3300 So. St .
Redwood Road & 2100 So. St.
West of 940, 2100 South Street
Briclcs, two feet away frOm truck
140 feet East of 1061, 3300 South St.
North of 3363, 1000 West St.

East of 999, 3300 South St.
Southwest of Tailings Pile
East of 949, 3300 South St.

  !!*
  1*1
  il'i
is:
±i
u
D

-------
MOBILE RADIATION SURVEY
                                                          -3

No.
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
__Z5-
76
77
73
79
80
81
82
83
84
Map
NEl/<



























Coordi nate
900W







700W






500W
300W
500W



700W

900W

6 W


3300S







3300S






3300S
3300S




3300S



800S
130QS
UOOS
Address
925, 3300 South St.
881, 3300 South St.
871, 3300 South St.
863, 3300 South St.
855, 3300 South St.
845, 3300 South St.
837, 3300 South St.
Vacant Lot, 3300 South St.
681. 3300 South St.
671, 3300 South St.
661, 3300 South St.
651, 3300 South St.
647, 3300 South St.
585, 3300 South St.
Western Salvage, 3300 So. St.
Vacant Land, 3300 So. St.
315, 3300 So. St.
Vacant Lot, 3300 So. S4.
Vitro MU1, 3300 Saasfa St.
Vitro OfSce, 3300 South St.
Parking LOT, 3305 SoiKn St.
Tailings Pile, 3300 So. St.
Tailings Pile, 3300 So. St.
Tailings Pile, 3300 So, St.
Vacant Land, 3300 So. St.
M.J.B.T., Genesee
Machinery Center, 6th W
1101, 6th W. St.
Background
Counts/Sec.
525
525
525
525
525
525
525
525
525
525
525
525
525
525
525
525
375
425
425
"" -525

425
425
i-25
Hi. Dell.
Counts/Sec.
1,163
1,600
1,688
2,063
2,500
2,550
4,475
6,800
1,850
1,650
1,695
1,725
1,400
838
800
863
575
988
1,988
, 1,575
"T.stm
12,750
14, 875
19,500
1.975
J75 |_ 525
37S [ 763
j?5 j 563 ^
Report Period:^1113-"' W*
Counts
South of Tailings Pile






East of 837, 3300 So. St. south of tailings







THrFBSfik from 500 W to Railroad Underpass !

DLrt bank, East of Vitro Uranium Mffl j
i
1
Weai'wi Vitco'sUiiice 	 - ' ' " 	 ~J;
From r Hiking Lot, West «> Opposire 700 tV
West, opposite 700 W, to paved road
Opposite 835 West St.
From 900W to KCPX Padio Station
Brick, West of 723 Genesee
North of 1201, 6th W \
\

-------
 u
 z
 v j • 1
3 "• l
z to f


I21

'^i
MOBILE RADIATION SURVEY
,...t. ^ 	 SALT LAKE CITY, UTAH „,„,, , p§, , „„. April 5-11, 1972
to.
85
86
87
88























lap
NI-/4


























1
Coordinate
6 \V
3 \V
6' XI \V
I .);>!> \V
























900 S
1355 S
800 S
•100 S
























Address
Pacific Metal, 6th W. St.
•105 California St.
615, 800 South St.
I.DS Church, 1311, lola St.
























Background
Counts/Sec.
375
375
350
-!00
























•si. Dell.
Count J/Sec.
625
838
488
538
























Coaaent t
Brick. 240 feet north of 977, 6th West

Portland Cement offices
Urlck

























-------
                SUMMATION:   MOBILE RADIATION SURVEY
                               Salt Lake City, Utah
     SURVEY COMMENCEMENT DATE:
        CURRENT REPORT PERIOD
             April 5, 1972

             April 18-27,  1972
           Survey Days
             Prior to Report Period
             During Report Period
           Structures Surveyed
              Prior to Report Period
              During Report Period
           Radiation Anomalies
              Prior to Report Period
              During Report Period
                                    Total
             7.00
             8.00

            15.00
         3,871
         6,995

Total    10,866
                                    Total
            35
           123
           Miles Surveyed
              Prior to Report Period
              During Report Period
                                    Total
            54.90
            66.40

           121.30
80

-------
UOBILE RADIATION SURVEY
, 	 „..,..,.,., SALT LAKE CITY. UTAH Itpcrt Pirietf: April 18-27, 1972
lo.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
IB
19
20
21
~22
2.3
2-1
2S
26

' i 7
n,;
Map
NI-:I/'



























Coot dln*ti
1300W
900 VV
900 W
OIK) \Y.
900 W
1500W
1500W
i;ioo\v
yoow
coo w
700W
90OW
looo\V
I300W
i :!oo w
900W
noow
! IOOW
KIOO'.V
HUOW
121 K)W
' KIOOW
1400W
I200W.
i.tuow
tool-;
( v : - 1 1 v,
- - - - )
800S
500S
400S
4oos
300S
700S
900S
200S
400S
•loos
400S
2 01 IS
200S
• 200S
2UOS
IOOS
HK1N
IOON
SOON
-IOON
1100N
1 JUON
1000N
ZU<>;i
S(U),M
J'JOOS
.I'll IDS
UI-. -d\v' :!7()()S
Address
1400 Indiana Avenue
484, 9th West Struct
1036, 400 South Street
Church,. Goslien Street
325 and 329 Post Street
Old Vacant School, Wasatch
Address 7, Indiana Avenue
Navajo Street Underpass at 200 g St.
402, 900 West Street
412, 600 West
Krtclmm's ! Lirdv/are, 400 S.
9ih\V. St. UIH'KTP.TSS atl-SO
175. 10th West St.
151 Navajo Street
122 N.ivajo Street
930, 100 South Street
Building No. 11, State Fairgrounds
Coliseum , State I-'airyrounds
4Hb Colorado Sireet
Church, Grant Street
130-1 Valentine Sireet
Address, J upa/. Si .
Nnrtlr.ve.'it Jr. ili School, Goodwin
Clriivli. I'n. cure Drive
6 10 C'olorailo Si rcct
Vacant Lot, 3"(iO Soulli St.
!.'! id Sdiilh M i in M I'l'rt
1 ire Iliaiiou, T/';.0 So. M.ilu
BaeVjround
Count i/Jec.
425
375
400
375
375
475
400
450
" 375
375
350
375
425
375
375
375
375
413
42.T
375
400
400
375
•W
400
425
•UK)
•175
Mil. 0
-------
MOBILE RADIATION  SURVEY
    SALT LAKE CITY. UTAH
i    April 18-27. 1972
Ho.
29
30
31

33
3-1
35




















1 	 	
Bap
NM1/-



























Coordlnstt
300 W
300 \V
100 E
	 j(H)li
IIXIK
KWK
loo ;•:





















3300S
3300S
3 COOS
3KX1S
3 SOUS
36(X)S
3900





















Address
3451,300 West St.
3365, 300 West St.
Bank, Corner of Helm & State St.
3:! 19 South State Street
3566 South State Street
Dace Sporiim;, South State St.
Aibcrt.son's, South State Street





















Background
Counts/Sec.
425
450
375
388
400
400
•100





















Has. Deli.
Counts/Sec.
550
2,375
500
513
513
538
575





















CeaaenJi


Drlck, east side
Brick
Brick
Hrick
Brick





















                   CN
                   CO

-------
       SUMMATION:   MOBILE RADIATION SURVEY
                     Salt Lake City, Utah
SURVEY COMMENCEMENT DATE:       April 5, 1972

    CURRENT REPORT PERIOD  :       May 3-6, 1972
       Survey Days
        Prior to Report Period           15.00
        During Report Period             3.50

             Total                    18.50

       Structures Surveyed
        Prior to Report Period       10,866
        During Report Period         2,364

             Total                13,230

       Radiation Anomalies
        Prior to Report Period          123
        During Report Period            47

             Total                   170

       Miles Surveyed
        Prior to Report Period          121.30
        During Report Period            20.03

             Total                   141.33
                                                                 83

-------
MOBILE RADIATION SURVEY
r riilllirmi wu.njviuiuin.uiAn SejjeM P.ned: «»7 --»."'-
HO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
18
19
20
21
22
23
2-1
25
2(,
) H,
lap
Nl/2

























1 	
Coot dinats
2001'
IOOK
lOOtf
0
mm-;
IOOW
1 00 W
200W
IOOK
IOOK
IOOK
IOOK
IOOK
IOOK
IOOK
JI'OI-
IOOK
IOOK
IOOK
looi-:
IOOK
IOOK
IOOW
IOOW
200 W
200 \V
3400S
3050S
2950S
2S50S
2S50S
2 I50S
2050
3300S
2400S
2700S
3030S
30-10S
3UOOS
2'»35S
2600S
2560S
25J.OS
2300S
2300 S
2300S
2300S
25bl)S
2550S
2W)OS
2<>OOS
'2 (oOS
1i>D\"i .lliH!S
	 > . _. _
1IH)\V .I'lKiS
Address
Address 7, State Street
Holiday Inn Cafe, Crcsson Street
2955-2975 West Temple
2S80 South Main Street
Address, Lntiise Street
2-165 West Temple
2650 West Temple
Addi'ess ? Walton Street
Underpass, 1-80 & State Street
27-10 Soutli State Street
3035 South State Street
3040 South State Street
3007 Soutli Stale Street
2935 Soutli State Street
2615 Soutli State Street
2^61 South Sr.-te Street
2567 Soutli State Street
Address 7, Burton Avenue
62 IKirton Avenue
7 Burton Avenue-
Address ? Burton Avenue
2550 South State Street
2550 Webt Temple
150 Stratfonl Avenue
Vacant Lot, Stratford Avenue
170 Crystal A\c!;u<:
««l !r-.-.:. 7, U\.-.t -fe-mpio
3; Mill'ji: Si.ri.-ci
Background
Counts/Sac.
400
400
375
375
350
400
350
400
375
375
425
425
400
400
375
375
375
375
375
375
375
3V b
375
375
375
375
375
375
«si. Qell.
Counts/See.
563
625
550
475
475
525
450
713
525
4S8
525
500
500
550
475
500
500
575
475
525
550
iiOu
488
488
1, 125
550
51 1
•i;s
Casasfif s
Brick, Corner of Ford & State, South Side
Parkinj; Lot In rear
Large Brick Building
Brick
Brick, Fast of 80 Louise St.
Brick
Brick
Yard, Old equipment, 120 feet west of 129 Walton
Concrete

Brick

Driveway
Brick 7
Brick
Brick
IJrick
West of 37 Burton St., Cinder Block

Briek
Ilowc Rental, l£aat of 22 Burton Avenue
"Brick" 	 ~ 	
Brick
Briek
V.V-.st of 150 Stratford, near railroad
NV-ar railroad
11 rii. k, At m.s.s llic street frnni 31-10 W Trmjilc

                                                        00

-------
 u
1 11
ft
II*
MOBILE RADIATION SURVEY -2
	 ._,,„,„, SALT LAKE CITY, UTAH ,„,„ .„,„„. May 3-6, 1972
le.
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
4-1
45
46
47








Jr-
• >P
Nl/2



























Coordinate
O-E,O-V
••
••
••
"
1 00 W
1001;
KxiK
300 1 •:
300I-:
ssni-:
550 !•)
S.SOli
5501-
IOOI'
IOOM
O-K,0-\\
••
IOOW









2500S
2500S
2500S
2700S
2700S
2700S
2700S
27(K)S
2700S
2SOOS
2700S
2700S
27(K)S
2700S
2WH1S
2500S
23(X)S
2300S
23(X)S









Address
Underpass of 1-80 & Main
Bontlwood Bowl, Will dock
2511 West Temple
270 1 South Main Sircct
2685 South Miln Street
Address?, West, 2700 South Street
14 Hast, 2700 South Street
2700 South State St.
Church, 2700 South St.
2782 BUilr Street
5()3 I'.i.st, 2700 So. St.
555 I'!;!:, t 2700 So. St.
547 1-last 2700 So. St.
545 liabt 2700 So. St.
2547 Soutli State Slrect
School, Oa kKi ml Avenue
2319 Soutli State Slrect
AiULross ?, South State St.
2325 Soutli State Street









Background
Count s/S»c.
375
350
350
350
350
375
375
375
400
350
375
375
375
375
375
400
375
375
350









Mai. Oefl.
Counts/Sec.
588
588
750
525
488
475
488
588
550
463
475
475
475
475
525
600
463
538
450









Coeients
Concrete
Brick, three feet away
Brick, two feet away
Stucco, four feet away
Brick
Brick, east of 31 West 2700 So. St.
Brick

Brick, Hast of 300 East, South Side

Brick
Brick
Brick
Brick
Brick
Brick
Brick
Brick, across the street. West of 2319 State
Brick









    CO

    01

-------
            SUMMATION:
MOBILE RADIATION SURVEY
Salt Lake City, Utah
      SURVEY COMMENCEMENT DATE:

      CURRENT REPORT PERIOD      :

          Survey Days

             Prior to Report Period
             During Report Period
          Structures Surveyed
             Prior to report period
             During report period
          Radiation Anomolies
             Prior to report period
             During report period
          Miles Surveyed
             Prior to report period
             During report period
                AprilS, 1972

                June 9 - 13, 1972
                                     Total
                                     Total
                                     Total
                 13,230
                  3,149
                 16,379
                    170
                     25
                    195
                                     Total
                    141.33
                     27.89
                    169.22
86

-------
 o
52
?z
» ,»„»
 	go
 *""" t f •
 CO
IP
     oo
MOBILE RADIATION SURVEY
,... t,,.K... ... — SALT LAKE CITY, UTAH RiMrtPtHeri: lune 9-13. 1972
He.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
l<>
20
21
2.1
2-1
25


• »P
Nl/2


























Cooitfincte
200 li
2(X)K
31X1K
500 K
5(10 !•:
7(X)K
7ix)K
7(X)K
700 K
700 K
7ix)K
7ix)K
7( «)!•:
900 K
900 ic
_J.>OUK_
9001':
900I-:
nx)K


2200S
2200S
2-100S
2400S
2700S
300S
300S
•loos
1700S
2200S
2-lOOS
I-IOOS
9oos
. I (X)S
2 SIX IS
3300S
21>50S
2700S
2700S
2-lOOS
2IOOS
J300S
I I DOS
3.100S
3900S



Iddrtss
Junk Yard, 2nd East
Address 7, Went worth Avenue
Underpass, 3rd Kast & Highway 80
Underiwss, 5tl\ Muse & Uigliway 80
SOI Must, 2700 Soutli
342 Siuiili, Si-vcnlh Kast
350 South, Seventh Must
•MO South, Seventh Kast
IIu wtlnrnc Si'luxil, 7t!\ E .
2226 South, Seventh Kast
Underpass, 7th K. & Highway 80
13'jy Soutli, 7th Kast
Addrvss 7, 900 S., 700M
Address ?, 700 Kast
2795 South State Street
Ml K, 3185 South Street
Motel, Garden Street
Church, 3rd K ist
Address ?, 900 Kast
Underpass, 900 Kast Ki Highway 80
2179 South, 900 Kast
1307 South, 900 Kast
1093 South, 900 Kast
3230 South, 900 Kast
1V./..I I'lace, 3900 South



BicKfround
Count s/Jec.
350
375
375
375
375
350
350
375
375
350
350
375
375
375
375
375
375
400
425
400
375
400
375
400
375



KM. Dtfl.
Count j/See.
500
500
663
588
563
475
4-75
475
550
463
4H8
488
475
600
575
725
500
525
525
550
500
513
488
525
538



Ce«a«ntt
West side, 360 feet south of Wcntworth Avenue
Drlck, west of 134 Wentworth Avenue
Concrete
Concrete
Brick
Brick
Brick
Brick
Brick
Brick
Concrete

Brick, North of 919 S, 700E
Brick, South of 100 South, Kast side
Brick
Driveway, Kast of 135 K, 3I«b South Mreet
Brick, West of 116 Kast Garden Street
Brick, North of 2721 S., 3rd.li.
Market, Brick, North of 2713 S., 900K .
Concrete
Brick
Brick
Brick
Brick
buck, 100 feet West of 1 23 F. ,. 3900 S.




-------
                  SUMMATION:         MOBILE RADIATION SURVEY
                                    Salt Lake City,  Utah
        SURVEY  COMMENCEMENT  DATE:           April  5,  1972

        CURRENT REPORT PERIOD   :           June 20-27,  1972


            Survey Days

               Prior to Report  Period               23.50
               During Report Period                  7.00

                                   Total           30.50

            Structures Surveyed

               Prior to Report  Period           16,379
               During Report Period             3,778

                                   Total       20,157

            Radiation Anomolies

               Prior to Report  Period              195
               During Report Period               	5

                                   Total          200

            Miles  Surveyed

               Prior to Report  Period              169.22
               During Report Period                 42.69

                                   Total          211.91
88

-------
                                        MOBILE  RADIATION SURVEY
SALT "« CITY' ™ l.p.rt F,,..<: J— 20-27. 1972
«».
1
2
3
4
5























• 19
Nl/2



























Coortfinita
2700W
2 700W
2000W
3200W
3520W























3650S
3650S
3500S
4100S
3900S























tddrtss
3690 South, 2740 West
3687 South, 2740 West
Address 7, 3500 South
Address 7, 4100 South
3S95 South, 3520 West























Backfround
Counts/Sec.
400
400
375
375
375























Mil. DBfl.
Count J/Jec.
525
4,900
525
1,625
525























Coaetntt
Granger Area

West of 1962 West, 3500 South
West of 3266 West, 4100 South
























 yi
i"H
" _ s
5il
 -j 4
   CO
   UJ

-------
                   SUMMATION:
MOBILE RADIATION SURVEY
Salt Lake City, Utah
          SURVEY COMMENCEMENT DATE:

          CURRENT REPORT PERIODS  :
                April 5, 1972

                July 11-18, 1972
                July 24 - August 1, 1972
               Survey Days

                  Prior to Report Period
                  During Report Periods
                                     Total
               Structures Surveyed
                  Prior to Report Period
                  During Report Periods
                                     Total
               Radiation Anomalies
                  Prior to Report Period
                  During Report Periods
                                     Total
               Miles Surveyed
                  Prior to Report Period
                  During Report Periods

                                     Total
                        30.50
                        16.00
                        46.50
                    20,157
                     8.860

                    29,017
                       200
                        38

                       238
                       211.91
                       116.58

                       328.49
90

-------
fo»« \.n- tt.. i > i t|. toi
                                              MOBILE  RADIATION SURVEY

                                                    SALT LAKE CITY,  UTAH
              July li-18,  1972
iipori Ptftod:  July 24 - August 1.
Ko.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Map
N-l/2
N-l/2
N-l/2
N-l/2
















































Coordinitt
205 OW
6000W
8400W
9100W
9100W
9100W
9100W
9100W
9100W
9100U
9150W
9150W
8800W
8850W
8850W
8900W
8950W
9100W
8950W
8950W
8950W
905 OW
905 OW
8950W
8800W
8650W
8650W
8600W
3145S
3500S
3240S
2900S
2860S
2700S
2700S
2700S
3000S
3100S
2700S
2700S
3100S
3000S
2800S
2800S
2800S
2900S
2700S
2700S
2700S
3000S
3000S
3000S
3000S
2800S
2800S
2700S
Address
3130 South, 2050 West
Whittler School
8390 West Powell Street
Address.?, 9100 West, 2900 South
Address ?, 9100 West 2860 South
9080 West, 2700 South
Address ? , 9100 West
Rexall Drug, 2700 South
2960 South, 9100 West
3068 South, 9100 West
Bank, 9150 West, 2700S
Address ? , 9150 West
8810 West, 3100 South
Vacant Lot, 8850 West
2828 South, 8850 West
2792 South, 8900 West
8927 West, 2800 South
2891 South, 9100 West
Theatre, 8950W, 2700S
Mjgna Water, 8950 W, 2700S
Vacant Lot, 8950 West
Vacant Lot, 9050 West
Vacant Lot, 9050 West
A6G Market, 8950 West
School, 3000 South
2817 South, 8650 West
2824 South, 8650 West
2711 South, 8600 West
Background
Counts/Sac.
400
425
375
425
375
425
375
375
400
400
375
375
388
375
425
425
400
425
400
400
400
375
375
375
375
425
425
375
•ai. Oatl.
Count s/Sec.
1,450
575
488
525
475
575
475
563
500
500
613
588
50O
488
525
575
588
600
700
563
538
500
513
475
538
525
525
538
Coioents
Front Yard
Brick -L
Southeast Magna Area
Brick, north of 2900 S, East Side
Brick ?, south of 2860 S, East Side
Brick, "Out House Bar"
Brick, north of 2700 S, East Side
Brick


Brick, 10 feet away
Brick, 15 feet away, South of 2700 S, West Side

South of 2920 South, 8850 West


Stucco
Brick
Brick, 15 feet away
Brick, 20 feet away
South of 2700S, West Side
North of 3017 So., 9050 West
South of 2979 So., 9050 West
Brick



Brick
a
I
3
?
4
I
\
O.

^_
I/I

J

- 8
i>
5"!l
^£ i i !
i— ; s «
~ i ! I
! 5 6
tO M *
_^ 5 8

-^ J
_ w

\^J t-
—r 1^
§
•
e
3
s
z
0
H
¥
3
-»
o
Z
<
t
0

-------

  t
  ll

  ll
Pag. 2 MOBILE RADIATION SURVEY
July 11-18, 1972
,,.. ,....,,, ,,,.„, SALT LAKE CITY, UTAH R«pOft Pir.od: July 24 - August 1. 1972
Ho.
29
30
31
32
33
34
35
36
37
38


















Hip
N-l/:




































Coord i nit e
8600W
_2JQQW
1300E
2300E
1300E
1100E
1300E
1300E
3400E
2300E


















2700S
9jpos
3300S
3300S
3300S
3300S
3700S
3700S
3900S
3700S


















(dduss
Vacant Lot, 8600 West
2180 DeLona (Chestnut on Map')
1444 East, 3300 South
2405 East, 3300 South
Lumber Yard, 3300 South
1103 East, 3300 South
1445 East Murphy's Lane
1435 East Murphy's Lane
Underpass 1-215, 3900 South
3695 South, 2175 East


















Background
Count s Sec.
375
375
400
375
375
400
375
375
400
400


















Kai. 08(1 .
Counts Sec.
513
750
488
- 475
538
500
450
525
513
500


















Coaujnl s
North of 2634 South, 8600 West
Buena Vista Area


Brick, 15 feet away. West of 3270 Highland Drive
Brick 15 feet away
Brick £c Rock
Brick & Rock
Concrete



















Jl
                                                                                                                 CNJ


                                                                                                                 CTi

-------
         SUMMATION:      MOBILE RADIATION SURVEY
                         Salt Lake City, Utah
SURVEY COMMENCEMENT DATE:               April 5,  1972

CURRENT REPORT PERIODS   :               August 9  - 15,  1972
                                        August 22 - 29,  1972

     Survey Days

        Prior to Report Period               46.50
        During Report Periods                13.00

                      Total                  59.50

     Structures Surveyed

        Prior to Report  Period           29,017
        During Report Periods             6,986

                      Total              36,003

     Radiation Anomalies

        Prior to Report  Period              238
        During Report Periods                23

                      Total                 261

     Miles Surveyed

        Prior to Report  Period              328.49
        During Report Periods                61.54

                      Total                 390.03
                                                                   93

-------
m wu i l. L. it n u i n i < wii « v it i «. i AugUft » " 15 , 191 Z
RiB«it Nftod- Au8u»e 22 - 29, 1972
Ho.
1
2
3
A
5
6
7
8
9
10
It
12
\3
I/.
15
16
17
1H
ID
20
21
22
23





Hap
N I/;
II
ll
"
II
It
II
II
>t
II
It
II
If
It
11
l»
tl
II
It
'•
"
u
II



t

Coordinitt
3400S
3760S
3500S
3500S
3300S
3100S
2600S
2700S
30003
3000S
3200S
3100S
3000S
31003
3300S
3100S
270051
2900S
2'iOOS
2r)OOS
3JOOS
3300S
•jonos





2700E
3500E
3G50E
3900E
3HOOE
7006
JiOOE
1000E
1300E
1300E
1 lOOli
1 IOOE
IOOOE
I IOOE
1100E
1 300E
900E
1500E
1 300K
1500E
KOOE
1600!-:
1300E





Itfdrtss
Old Mill, Evcrcrcen
Underpass, 1-212 S, 3760S
LDS Church, Mill Stream Lane
3/i 3 1 So. Crostwood Drive
3351 & 33b7 Soulh Crestwood Dr.
Church, Jc|>]).-:on
2583 South, 800 East
Adtlrcss ? , 1000 Eaut
Dank, Elpln & Highland Dr.
3010 South Richmond
3194 South Riches Avc.
Brick yard, Welhy Avenue
1005 E. Austin
llrlck yard, 1100 East
Address ? , 1100 East
Villa, Gunn and Highland
A.'.C. Market, 2700 South
1527 Zenith
2>'i20 Highland Drive
AMI Market, Glcnmore & Stratford
Church, Woodland 4 Highland Drive
Address ?, 1575 East
AJJresa ? , 3000 South





Background
Counts/Sec.
375
AGO
425
475
375
375
375
375
375
400
425
375
400
400
413
375
375
400
375
375
375
400
375





an. Deli.
Count s/Ste.
513
588
525
613
475
588
' 525
513
500
500
538
513
513
713
613
588
525
600
538
488
725
525
550





Coaftints
West of 27SO Evergreen
Concrete
Brick
Soil embankment

Brick, west of 727 East Jeppson

Urick, north of 2756 South, 1000 East
Brick
Brick
Stucco
Corner of Wclby & 1100 E, south side
Brick
Ut-twecn Welby and Riches, both aldea of atrcet
Brick, south of 3233 South, 1100 East
Brick
llrlck, East of 900 East, South Side
East side of house
100 feet south of Tower Transformers
Brick
Urick
Brick, Corner of 1575 E & 3300S, West side
Brick, Corner of 3000S and Highland, East side





CTl

-------
           SUMMATION:    MOBILE RADIATION SURVEY
                         Salt Lake City, Utah
SURVEY COMMENCEMENT DATE:              April 5,  1972

CURRENT REPORT PERIOD    :              September 14-21,  1972


     Survey Days

        Prior to Report  Period                 59.50
        During Report Period               	7«00

                          Total                66,50

     Structures Surveyed

        Prior to Report  Period             36,003
        During Report Period                3,298

                          Total            39,301

     Radiation Anomalies

        Prior to Report  Period                261
        During Report Period               	11

                          Total               272

     Miles Surveyed

        Prior to Report  Period                390.03
        During Report Period                   26.90

                          Total               416.93
                                                                   95

-------
                                        MOBILE  RAOIATiON SURVEY

a*.
i
2
3
4
5
6
7
8
9
10
11


















Hip
N i/:
/"
/


\
\


/
/


















Coerd
2700S
2920S
2980S
3300S
3300S
3300S
3300S
33003
3300S
3300S
900S


















n»tl
2000E
2000E
2700E
100E
100E
100W
200W
iooy
200E
700E
400E


















Iddrist
2730 South, 2000 East
LDS Church, Mary Dot Way
2980 South', 2700 East
67 East, 3300 South
Church. 3300 South
10 West, 3300 South
184 West, 3300 South
Vacant Lot, 3300 South
220 East, 3300 South
704 East, 3300 South
922 South, 400 East


















gickf reund
Counts/Sic.
375
375
400
375
375
375
375
375
375
375
325


















ill. 9>d.
Count j/S»e.
488
500
575
538
550
488
3,900
550
488
488
500

















Reperf ttitat: September 14-21, 1972
Gssiints
Brick
Brick

Brick
West of 67 East, 3300 South, Brick
Brick
Mountain States Supply Company
East of 157 West, 3300 South
Brick




















SM

11'
a-gj
c/i h

-------
                          APPENDIX   C
       RECOMMENDATIONS OF ACTION FOR RADIATION EXPOSURE LEVELS
      IN DWELLINGS CONSTRUCTED ON OR WITH URANIUM MILL TAILINGS
External Gamma Radiation

         Level

Greater than  0.1  mR/hr

From 0.05 to  0.1  mR/hr

Less than     0.05 mR/hr


Indoor Radon Daughter Products

         Level

Greater than  0.05 WL

From 0.01 to  0.05 WL

Less than     0.01 WL
      Recommendations

Remedial action indicated

Remedial action may be suggested

No action indicated
      Recommendations

Remedial action indicated

Remedial action may be suggested

No action indicated
                      EXPLANATORY NOTES


1.  These recommendations are written specifically for dwellings con-

structed on-or with uranium mill tailings.  This situation may involve

continuous exposure of members of the public to radon daughter product

activities and whole-body gamma irradiation levels in excess of the

background radiation levels found within dwellings in the area not con-

structed with or on uranium mill tailings.
                                                                     97

-------
     2.   Although the  initial  concern was  the  presence of  radon  daughter



     product activities  within these dwellings,  preliminary  surveys  have



     indicated that, in  some instances,  the  gamma  radiation  levels were



     of  prime importance.   Thus,  recommendations are made  concerning both



     Cypes of radiation.   The  recommendation applicable  to a particular



     dwelling will be  determined  by whichever  type of radiation  has  the



     higher level.





     3.   Three levels  for  action  are recommended for both  external gamma



     and radon daughter  product exposures.   This graded  system of actions



     is  proposed  to allow  latitude in the  middle ranges  for  the  judgment



     of  the on-site investigators.





     A.   The external  gamma and radon daughter product levels proposed



     constitute exposures  which are in addition  to the natural background



     levels found within dwellings in the  area not constructed on or with



     uranium mill tailings.  In the Grand  Junction, Colorado, area these



     levels are approximately  0.01 mR/hr (approximately  90 mrem/yr)  and



     0.004 Working Levels  (WL)  (approximately 0.2  CWLM/yr) respectively (1)





     5.   The expected  health effects of concern  will be  different for the



     two types of radiation, i.e., leukemia  for  whole body gamma radiation



     exposure and lung cancer  for. exposure to inhaled radon  daughter



     products.  This expectation  is based, in part, on findings  derived



     from population studies such as the Japanese  atomic bomb survivors



     and uranium  miners.   These specific health  effects  are  considered  to



     be  mutually  exclusive.  The  basis for this  assumption is that the


98
     expected radiation  contribution to whole body exposure  from inhaled

-------
radon and daughter products would be considerably less than the direct



exposure from external gamma  radiation at the levels encountered in



the dwellings.   Conversely, the external gamma radiation contribution



to the  lung  dose is  considered to comprise a negligible additional



risk of lung cancer.




6 a.  A Working  Level  (WL) is the term used to describe radon daughter



product activities in air.  This term is defined as any combination



of short-lived radon daughter products in 1 liter of air that will



"result  in the ultimate emission of 1.3 x 10  MeV of potential alpha



energy  (2) .   The numerical value of the WL is derived from the alpha



energy  released  by the total decay through Ra C' of the short-lived



radon daughter products, Ra A, Ra B and Ra C, at radioactive equi-


                        299
llbrium with 100 pCi of    Rn per liter of air (3).




6 b.  A Working  Level Month (WLM) is the term used to express the



occupational exposure incurred in one working month of 170 hours by



a uranium miner  laboring in an atmosphere containing radon daughter



products; i.e.,  one working month in a mine atmosphere containing



1 WL of radon daughter products equals 1 WLM.




6 c.  Cumulative  Working Level Months (CWLM) is the term used to



express the  total accumulated occupational exposure to radon daughter



products in  air;  i.e., an air concentration of radon daughter prod-



ucts of 1 WL would, in one working month, equal 1 WLM, and in 1 year



or 12 months would equal 12 CWLM.
6 d.  Since occupational exposures arc based upon 170 hours per

                                                                    99
month and continuous exposure involves approximately 170 hours per

-------
         week,  then an occupational exposure to an air concentration of 1 WL




         is equivalent to continuous exposure to 0.25 WL.






         7.  These recommendations are based on the assumption of a linear,




         non-threshold dose-effect relationship.  The lack of definitive




         information precludes  allowances  for possible differences in radio-




         sensitivity due  to age,  sex,  or other biological  characteristics.






         8.  No action is indicated when the external gamma exposure rate is




         less than 0.05 mR/hr and the radon daughter product activity is less




         thai) 0.01 WL since under conditions of continuous exposure these




         levels would result in maximum annual exposures of approximately




         400 mrera and 0.5 CWLM, respectively.   The maximum annual value  of




         400 mrera is less than  the dose limits recommended for an individual




         member of the general  public  by the FRC (4)  and ICRP (5) for whole




         body exposure to external gamma irradiation.






         The ICRP (5) recommends  that  the  annual dose limit for members  of




         the public shall be 1/10 of the corresponding annual occupational




         maximum permissible dose.  The maximum annual value of 0.5 CWLM of




         radon daughter product exposure is approximately  1/10 of the 4  CWLM




         annual occupational exposure  limit recommended by the FRC (6)  for




         implementation on 1 January 1971,  and less than 1/20 of the annual




         occupational exposure  limit of 12  CWLM recommended for uranium  miners




         in the present FRC regulations (4).






         9.  Remedial action may  be suggested in the case  of external gamma




         exposure rates of 0.05-0.10 mR/hr  or radon daughter product activ-




         ities of 0.01-0.05 WL  since under  conditions of continuous exposure
100

-------
 these  levels  would  result  in maximum annual exposures of approximately




 400-900 mrem  and  0.5-2.5 CWLM.   The upper limit of  these ranges




 exceeds the strictly applied recommendations of the FRC and ICRP for




 exposures  of  an individual member  of the public.  However, this




 extension  seems justified  in situations in which unforeseen exposures




 have occurred, since as stated by  ICRP  (5) "in general it will be




 appropriate to institute countenneasures only when  their social cost




 and risk will be  less than those resulting from the exposure."  It




 is further stated by the ICRP  (5)  that very low levels of risk are




 implied in the dose  limits for members of the public and that it is




 likely  to  be  of minor consequence  to their health if the dose limits




 are marginally or even substantially exceeded.






 10.  Remedial action is indicated  at gamma exposures greater than




 0.1 njR/hr  or  at radon daughter product activities greater than




 0.05 WL.   Under conditions of continuous exposure, these levels




would result  in minimum annual exposures of 900 mrem and 2.5 CWLM.




 All values above  these would indicate the necessity for remedial




 action,  since at  these levels the  maximum annual exposures recommended




by the  FRC and ICRP  for an individual member of the public is exceeded.






 11.  With  respect to the external  gamma irradiation, from the esti-




mates published by ICRP (7), it  can be interpolated that the annual




 risk of  leukemia  under conditions  of continuous exposure to 500 mren




 per year is an increased incidence of about 10 cases per year per




 million  persons exposed.   The natural annual incidence of leukemia




'for all  ages  is given by ICRP  (8)  as 10-100 cases per million persons.



                                                                   101

-------
        With respect to radon daughter product exposures, it has been estimated

        by Archer and Lundin (9) that an exposure of 120 CVLM to a group of

        white adult males in the United States appears to approximately

        double the normal lung cancer incidence which for this population is

        about 2-3 cases per year per 10,000 persons.  At an annual exposure

        of 2.5 CWLM, 48 years would be required to reach 120 CWLM.


        12.  It is considered that implementation of these recommendations

        for the various exposure ranges would make it highly unlikely that

        any serious health effects would result from exposure to radon

        daughter products or external gamma irradiation in this particular

        situation.


        13.  It is suggested that remedial action be taken only after an

        adequate number of measurements taken under a diversity of temporal

        and climatic conditions have clearly established that the average

        exposure is in excess of 0.1 mR/hr or 0.05 WL.


        14.  It is recognized that some time lapse will be inherent in

        establishing that radiation levels in excess of 0.1 mR/hr or 0.05 WL

        exist and in instituting corrective measures.  However, it is con-

        sidered that the additional health risks from continued exposure

        over this time period are of lesser consequence than the economic

        and social discomfitures of precipitous action.
        Je
-------
                           References
1.  Personal communication.  Mr. Robert D. Siek, Colorado State
    Department of Health.

2.  U. S. Public Health Service Publication No. 494. Control of
    Radon and Daughters in Uranium Mines and Calculations on
    Biologic Effects,  1957.

3.  Federal Radiation  Council Report No. 8 Revised.  Guidance for
    the Control of Radiation Hazards in Uranium Mining, 1967.

4.  Federal Radiation  Council Report No. 1.  Background Material for
    the Development of Radiation Protection Standards, 1960.

5.  Recommendations of the International Commission on Radiological
    Protection.  ICRP  Publication 9 (1966).

6.  Federal Register, Vol. 34, No. 10 pp 576-577 (1969).

7.  The Evaluation of  Risks from Radiation.  ICRP Publication 8 (1966).

8,  Radiosensitivity and Spatial Distribution of Dose.  ICRP Publi-
    cation 14 (1969).

9«  V. E. Archer and F. E. Lundin, Jr.: Radiogenic Lung Cancer in
    Man:  Exposure-Effect Relationship, Environmental Research _1,
    370-383 (1967).
                                                                  103

-------
                                APPENDIX  D.
 UTAH  COyPREHENSIVE BY CITYt* STREET ADD*
                                             PAGE
                                  C	L
SALT
LAKE CITY.
UT
LOG. NO. ADDRESS
COVMFNTS


42534
A G13
42437
A 38C


• 01005 E
BRICK WALL
' 02782 S
ORE TO 300


AUSTIN AVE
S TO 16
BLAIR AVE
IN YARD

OCCUPANT
OWNER



FUNKHOUSER
FUNKHOUSER
01/09/73
HOG
LOG


00012
00008
I 00015
I 00010

HIG
tog



_OJ>OJ4
6
L
ft
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S

1

1
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1

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2

2
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A
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1

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7

1
JAJL
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0 6

0 6
 42420   00007    E BURTON AVE
 A  20C
  42419   00062
  A  19C	
               E BURTON AVE
                                                                            6 9  7
42418 00035 E BURTON AVE
A 18C
NOLAN R

00012
00008

1 3. 1 2 7 9 5
                                                                            697
 42365:  00405
                 CALIFORNIA ST
A 86A

42385 00488 N COLORADO ST
A 19B UNEXPLAINED
42391 00610
A 258 BRICK TO
42526 03357
A G5 BRICK WALL
42525 03431
N COLORADO ST
18
S CRESTWOOD DR
S TO 19


VALLONE J
VALLONE J
VAUGHT J
VAUGHT J
SIMONSON JR
SIKONSON JR

695
00015 00019
;000ll 6 1121106
00016
•00009 1311706
00015 00012
0000$ 1 1121106

  A  G4  ROCK RETAINING WALL TO 28
                                                      00011
                                   1221705
  42426   0017Q      CRYSTAL AVE
  A, 26C  UNEXPLAINED	
                                 UNKNOWN
                  ..DELOMG.ST.
  A  F30  DELONG 500 TO 850 SOUTH
  42361   00733   W GENESEE
 _A_82JL_BRICK  TO 18	
                                 M 'J. B CO
                _GQODWlNjj
A 238 BRICK INSIDE TO 20
                                                      00016
                                  J  312795
                                                                            695
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                    00012
                                                                    521  1705
NW_JR_ HIGH	00013'
SALT LAKE C SCH DT  00007
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                                                                9"-'  7 2  1..1-1 0 6
  42539   02420    S HIGHLAND DR
  A  G1.9_BRICK  V^AI LS Tn 17	
                                 GENERATING PLANT     00014'
                                 _UTAH P¥R*LIGHT  CO    OOQlO
                                  5131705
              	S_HIGHLAND_DJL..
  A  G23  BRICK WALLS TO 18
                                 .NATIONWIDE .LOANS	Q0015_
                                 LANDES*SON5  INC      00010
                           _.0 0 01Z	
                             9    6211106
  42530   03020    S HIGHLAND OR
  A  G9_BEI£K_WALI.S TO 1&	
                                 VALLEY BANK*TRUST
                                 J/ALLEY
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                    J) 2 OQB    9"   5211106
        ,0309?	$ HIGHLAND_DR_
  A  Gi6  BRICK  WALLS TO 16
                                 .VILLA THEATRE  _
                                 NATIONAL GENERAL
                    00012	00012
                    00008
  42368   01400    W INDIANA AVE
  A  01B  BRICK TO 18
                                 POPLAR  GROVES  DAY
                    00012
                    00010
9"   69   1106
                                                                    7131705
104

-------
	 UTAH-COMPREHENSIVE .BY CITlt__SlRE
SALT LAKE ClTYt UT
LOC.NO. ADDRESS
	 r- 	 COMMENTS
£T ADD« PAGE


01/09/73
OCCUPANT
OWNFR
HOG
LOG
HIG
LOC
r i s
L T E H C
__A Y Sf A P
S P E T E
S F L L F

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A
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42373 01527 W INDIANA AVE
& 7R
42343 . 009f»9__ JE«£LL_AYE___
A 50A ROCKS TO 27
42429 02440 S MAIN ST
A 29C UNFXPI ATNJFD PnSS GFOMFTRY
42430 02500 S MAIN ST
A 30C UNEXPLAINED
42433 02685 S MAIN ST
A 33C UNFXPI AINED
42432 02701 S MAIN ST
A 32C
42404- 02880 S MAIN ST
A 04C UNEXPLAINED
42393 03336 S MAIN ST
A 27Q T NE' •*• SH CRNRS OF BLDG
42394- 03700 S MAIN ST
A 28B T ENTIRE AREA
42428 00037 W MILLER ST
A 28C
42524 03650 E MILLSTREAM LN
A 63 BRICK WALLS TO 20
42519 01435 E MURPHEY LN
A F36 BRICK WALLS TO 18
42518 01445 E MURPHEY LN
A F35 BRICK WALLS TO 18
42381 00122 S NAVAJO ST
A 15B BRICK TO 18
42380 00151 S NAVAJO ST
A 149 UMADLF TO CK DRK-2ND_F_LQ.R
48374 OQ2QO S NAVAJO ST
A 88 HOG DUE TO GEOMETRY
42372 00327 S POST ST
A 05R HOG DUE TO GEOMETRY
42531 03010 S RICHMOND ST
A G10 BRICK WALLS TO 20
42445 S STATE ST
A 46C

AMERICAN STONE
ASTON DR
UNDERPASS 180
CITY OF SAl T L AKE
BONWOOD BOWL
WHITE W
MAIN ST POULTRY
NEALJ_ M
RITE WAY AUTO SALE
TAVISH F
HEWLETT 'PACKARD
CAPTOL INDUSTRIES
THE SHADE SHOP
LAYCOCK j
SLC FIRE DEPT
COUNTY OF SALT LAK


MILL CREEK WARD 13
IDS CHURCH
JOMES CL1 E
JONES CLi E
WANSLEY LF
WANSLEY LF
SILVEX IND
AFCO IND PARK
VACANT
HHY UNDERPASS
CITY OF SALT LAKE
VACANT AREA
BAGWELL V
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W OF 2319 S, STATE


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-------
APPENDIX D (CONT
UTAH C
SALT L
:OMPREHENSIV
.AKE~CITY» U
E BY
T
CITY, STREET ADO., PAGE
01/09/73
LOG. NO. ADDRESS
COMMENTS






42448 02225 S
A 2D BRTCK TO 17
42444- 02319
A 45C
42446
A 47C
42409

023E5
02400
S

S
5
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42443
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42442
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42422
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42416
A 16C
42417
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42415
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42436
A 36C
42410
A IOC
02481
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STATE
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STATE
STATE


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OCCUPANT
OWNER


DOG «• CAT HOSPITAL
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UNDERPASS HWY 1-80
CITY OF SALT LAKE
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TO 22-ADDRESS GUESS SLC SCHOOL DISTRCT
S
STATE
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TO 17
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STATE
17 CLOCKS
42461 02795 S
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42405
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02862
BRICK
S
TO 17
STATE
ST
ST

ST
ST

ST
ST
TO 50
ST
STATE ST

42414 02935 S STATE
A I40I7D UN="XPI AINFD
42413
A 13C
42411
42412
A 12C
42398
mV32B
. 03007
T NEXT
03035
03040
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STATE

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STATE
ST
ST
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THE ASSOCIATES' FIN
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SANDERS WIN SHD CO
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2727
2106

1137
1106

-------
APPENDIX 'D ( T.ONT
UTAH mwpRFHFNSIVF. RY CITYt STRFFT Ann. PAf,F
SALT LAKE CITY* UT
LOC.NO. . ADDRESS
mii_

42402 03419 S STATE ST
& ntr STUCCO To 19
42399 0356ft 5 STATE ST
A 333 BRICK FRPLACE TO 20
^42397 03620 S STATE ST
A .lift
42400 0365ft 5 STATE ST
A 348 BRICK TO 19
42401 03750 S STATE ST
A 358 BRICK TO 17
42470 03897 ,S STATE ST
A 250
42424 00150 W STRATFORD AVE
& 24C BRICK TO 17
42425' 00164 W STRATFORD AVE
a 25C T SW CORN LOT - SHINE 40
42388 01186 TOPAZ DR
A 22B UNEXPLAINED
-42387 01304 VALENTINE ST
A 218 NO SUCH ADD
42406 02465 S W TEMPLE
A 6C UNEXPLAINED
42431 0251L S W TEMPLE
A 31C BRICK TO 20
-42423 02550 S W TEMPLE
A 23C BRICK TO 19
42407 02650 S W TEMPLE
A 07C UNEXPLAINED
42403 02975 S W TEMPLE
A 03r T IN OR N OF RLDG RRK 18
42427 03135 S H TEMPLE
A 27C HOG BUSHES S SD HSE
42538 01527 E ZENITH ST
A G18 ORE INSIDE * OUT TO 3000*
42383 01000 W 100 N ST
A 17B UNEXPLAINED
42384 01000 W 100 N ST
A 18B BRICK TO 21
01/09/73
OCCUPANT
OWNFR


PEDERSEN INTERIORS
PEDERSEN R
NIGHT LIFF
CARROLE M
VALLEY BANK BUILD
DUCE SPORT GOODS
MALOUF G
ALBERTSONS
PAPONICHLOS
BOBS V CLUB
BRUNO J
RIDER PLASTICS
RIDER PLASTICS
VACANT LOT
UNKNOWN
STATES L: D
STATES L D


MARSH * SON
MARSH RW
LE VOYS
SORENSON J
JUDKINS CO
JUDKINS R
HEUSSER BALANCES
RUEFENACHT W
HORTHINGTON
PRICE J
DAY T
KINGSTON JB
RAY OA
RAY OA
STATE FAIR BLDG 11
STATE OF UTAH
STAT FAIR COLISEUM
STATE OF UTAH

HOG
LOG


00010
00006

HIG
LOG


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00013
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00415
00008
00011
00007
00060
00011
00018
00010
00015

-------
                       APPENDIX D  (CCLNT )
UT«H COMPREHENSIVE BY CITY* STREET ADD* PAGE
SALT LAKE ClTY» UT
LOC.NO. ADDRESS
COMMENTS


42460 00702 E 100 S ST
A 14D BRICK TO 17
42382 00930 W 100 S ST
A 168 UNEXPLAINED
42529 02742 S 1000 E sT
A G8 BRICK WALLS TO 17
42345 03341 S 1000 W ST
A 52A*54A POSS WNDBLN T*SHNE 25
42533 03100 S 1100 E ST
A 612*14- CLAY*BRICK TO 25"
42532 03194 S 1100 E ST
A Gil STUCCO WALLS TO 20
42379 00175 S 1100 W ST
A 138 BRK TO 17
42367 00345 S 1335 W ST
A 88A BRICK TO 19
42541 03175 S 1390 E ST
A G21 BRICK WALLS TO 22
42447 S 200 E ST
A 010
42544 02750 5 2000 E ST
A HI-NO ?730 ADD-BRTCK HALL 20
42511 0313n S 2050 W ST
A Fl T FR YD*S SIDE
42341 00850 W 2100 S ST
A 4BA UNEXPLAINED
42342 00964 W 2100 S ST
A 49A UNEXPLAINED
A2521 03695 S 2175 E ST
A F38
42421 00055 E 2400. S ST 	
A 21C UNEXPLAINED
42540 01567 E 2585 S ST
A G20 RRTCK WALLS TO 16
42546 02980 S ?700 E ST
A H3 T CARPORT SLAB ONLY
42522 03435 S 2700 E S'f
A Gl OLD FLOUR MILL SITE RCK 20
01/09/73
OCCUPANT
OWNER


HALF PRICE MARKET
TAFT W
METAL ART CO
TELFORD RW
STORAGE •* GApAGE:
BIESINGER FG
E OF 999 3300 ST
UNKNOWN
INTERSTATE BRICK
MTN FUEL' CO

UNKNOWN
VACANT
LOS CHURCH

WILFORD WARD 1*2
LDS CHURCH


VACANT HOUSE
UNKNOWN
HILLS FF'
HILLS EE<
AMERICAN SERVICE
LOWELL BM
LEAK M
LEAK M

HOWE RENTALS
HOWE H
SAVRITE A*G MARKET
ALLRFD HR
TAGGART NM B
TAGGART NM B
VACANT
HOG
LOG


00012
00009
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A Y V
HIG S P E
LOG S E L


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9 522

0
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9 512

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8 1 3


131
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9 131
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0 121
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9
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1106

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1705

1705
1705

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1705

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1106.

1106
1 4 9 4_

1106
1 1 0 6_

1137
706
108

-------
APPENDIX D (C9NT )
LJJAH C<">M?;=>FHfrwc;IVF' PY CITY* STRF
SALT LAKE CITY, UT
.LOC. NO. . ADDRESS


42435. 00014 E 2700 S ST
A 35C
42463 00304 E 2700 S ST
A 180 » 37C BRICK TO 21
42451 00501 E 2700 S ST
A OSD RUS r.l 09FD UMFXPI ATMFp
4244-1 00545 E 2700 S ST
A 42C BRICK FIREPLACE TO 17
42440 00547 E 2700 S ST
A 41C BRICK TO 17
42439 00555 E 2700 S ST
A 40C BRICK TO '18
42438 00563 E 2700 S ST
A 39C BRICK TO 18
42464 00902 E 2700 S ST
A 19D+17G BRICK TO 18
42537 00902 E 2700 S ST
A 19D*17G DUPLICATE LOC "42464
42434 00031 W 2700 S ST
A 34C
42472 036B7 S 2740 V ST
A 2E T ENTIRE PROP
42471 03690 S 2740 W ST
A DIE
42545 02206 "E 2935 S ST
A H2 RRICK TO 18
42449 02400 S 300 E ST
A 03D UNEXPLAINED
42296 02545 S 300 W ST
NO MOB-APO GUFSS-T FNTIRE LOT
42396 03365 S 300 W ST
A 308 T PARKING AREA
42395 03451 S 300 W ST
A 293 UNEXPLAINED
42462 00137 E 3185 S ST
A 160 T UNDER S SEC OF TRLR HSE
42548 00047 E 3300 S ST
A H5 BRICK WALLS TO 20
ET ADD. PAGE
01/09/73
OCCUPANT
OWNER



LDS CHURCH
LOS CHURCH SLC
NIBLEY PARK MARKET
EHLERT J
EHLERT J
BULLOCK
ARCHULETA M

FELLOWS WE
FELLOWS WE
NYGRENS MARKET
NYGREN P
NYGRErJS MARKET-DUP
NYGREN-DUP 42464


CARTER JA
PAIZ E "
ADAMSON NW
ADAMSON NW
GARDEN HEIGHTS KRO
LDS CHURCH
HHY j 80 UNDERPASS
CITY OF SALT L<\KE
VACANT LOT
US GOVT
BOYERS FOOD PROD

YOUNGS TRUCK LINES
ATCO.. INVESTMENT
VACANT HSE TRLR
UNKNOWN
LDS CHURCH
LDS CHURCH


HOG
LOG



50014
00008
00015
JWOQ7_
50013
00010
00015
50009
00014
00006
00014
00015
00010



00300
00014


00012
ooooa
00016
00010
osooo
gjijoo
00300
00008
00012
OQ_007
ooioo
00012
00016
00010


HIG
LOC






00014
6
00014
6


00010
6"
00012
9



00050
6


00012
9



00015
9
00013
6


00015
9

L
A
S
S




8
5

1
1

1
1

5



1

1
8

9
0

5
5

1
6
L S
T E M C
Y V A R
PETE
F L L E
Ski
N
6

7
2117

121.1
1211

1217
1211

1211


6
1211

2214
1211

1
1

2111
1221

3127
1211


S
F


9

0
0

0
0

0
0

0


9
3

9
0

0
2

3
0

3
0

M
A
P


7

6
5

6
6

5
6

6


7
1

4
6

6
7

7
6

.7
6
                                              109

-------
                      APPENDIX  D.  (CONT )
UTAH COMPREHENSIVE BY CITY». STREET ADO, PAGE
SALT LAKE CITY? UT
LOG. NO, ADDRESS
COMMENTS


42547 00067 E 3300 S ST
A H4 BRICK WALLS TQ 13
42552 00?20 E 3300 S ST
A H9 BRICK WALLS TO 18
42553 00704 E 3300 5 ST
A H10 SRICK TO IB-INSIDE REFUSE
42517 01103 E 3300 S ST
A F34 BRICK WALLS TO 17
-42535 01105 E 3300 S ST
A G15 BLOCK HALLS TO 15
42514 01444 E 3300 S ST
A F31 T ASPHALT PARKING N SIDE
42542 01565 E 3300 S ST
A G22 BRICK WALLS TO 22
42515 02405 E 3300 S ST
A F32 ORE FRNT YD BY STEPS 300
42516 03290 E 3300 S ST
A F33 BRICK (•/ALLS TO 16
42295 H 3300 S ST
NO HOB-DUNCAN REQUEST
42549 00010 W 33QO S ST
A H6 BRICK WALLS TO 16
42551 00155.5 W 3300 S ST
A H8 T CENTER-NORTH SIDE
42408 001B4 W 3300 S ST
A 8C*H7-HIG IN DISPLAY' AREA
42550 001C4 W 3300 S ST
A 8C*H7-DUPLICATE OF LOC 42408
42359 00315 W 3300 S ST
A 73A T IN rmVF F SIDF HSF
42360 0049ft W mnn S ST
A 74A-POS KNDBLWN T/SHINE~TO 30
-42358 00499 W 3300 S ST
A 72A T HMD RIV.'NUSHJNF TD~30
42308 00535 w 3300 S ST
A 12A+70A*71A WND BLWN/SHlNE 45
42357 00651 W 3300 S ST
A 6BA T. W'NO RLWN ENTIRE PROP
01/09/73
OCCUPANT
OWNER


MILLERS HONEY
MILLER D
AMOS RENTS
TOWERS JM
SCOTT J
SCOTT J
J*K MARKET
KUMARELAS V
BARBARA JENSEN INT
BARBARA JENSEN INT
APOSHIAN ENGINEERS
APOSHIAN GZ
POND C
POND C
IVINS LR
IVINS LR
DON QUIXOTE RESTRN
VITRO MILL AREA
SEVERAL
OLSONS SPORTS, CAR
ANDERSON El
VACANT LOT
GREAT BASIN SUPPLY
KOHLER PLUMB SUPP
ADAMS A
KOHLER PLUMB - DUP
ADAMS A-DUP 42408
LOSSER R
LOSSER R
VACANT LOT
UNKNOWN

WESTERN AUTO WRECK__
PETERSON C D
KENNEDY K
THUET J
HOG
LOG


00015
oooli
00012
00009
00015
00010
HIG
LOC


00010
9
00015
9

C L
L T E
A Y V
S P E
S EL_L_
S
522

631
1 1 2
s.

H C
A F! U
T E
i r
N"
1 I

1 1
1 7
S
i
0

0
0
H
A
_P_
6

6
4
00014 00012
00009
00010
OJLOJL8
_9Q040_
00010
00013.
00009
00014
00010
00012
00009
3000*-
00020
00011
__MQ_08
00040
00010
01000
00020


00110
00009
00030
00020
00030
00014
00040
00025
00090
00040
9
00012
9
00012
9

00014
6 "



00014
9


00190
8


00013
2



00019
9 '
00018
0
6 1 2
5 2 1

622
I

1 1 ?.
6 1 2

9
521

0
5 2 1


1 2 1

0
0

5 2 I
1 2 1
1 I
1 I

1 1
7

I 1
1 7

1
1 }

1
1 1


? 1

1
1

1 1
1 I
0
0

3
0

0
Q

3
0

2
3


3

4
?

4
3
6
6

7
5

6
6

1
6

7
1


7

6
7

6
6
110

-------
APPENDIX D  (CONT )
UTAH fOXPPFH^N^TVF BY PTTYt STRF
SALT LftKE CITY» UT
LOG. NO. . ADDRESS
rnMMFNTS


42356 00661 W 3300 S ST
A 67A
42355 00671 W 3300 S ST
A 66A T WND BLHN ENTIRE PROP
42307 00681 W 3300 S ST
A 11A»65A T WNOBLWN FNTIRE YD
4?3S4 00825 W 3300 S ST
A 64A T S SD OF ROAD * WND SLUM'
42353 .00837 W 3300 S ST
A 63A T UNO BIWN/SHTNE TO^llO
42352 OOB45 W 3300 S ST
A 62A T WNDBLN YAPD-HIG SHINE
42351 00855 W 3300 S ST
A 61A T ENTIRE YRD/SHINE TO 90
42350 00863 M 3300 S ST
A 60A T WNDBLWN YD + SHINE TO. 70
42349 00071 W 3300 S ST
A 59A t V!ND BLWN ENTIRE PROP
42323 00881 W 3300 S ST
A 29A+58A WNDBLWN T*SHINE TO 65
42348 00925 W 3300 S ST
A 57A*A56 WND BLV.'K'/SHJNE TO 55 _
42347 00949 W 3300 S ST
A 55A T KND BLWN SHINE TO 40
42346 00999 W 3300 S ST
A 53A SHINE TO 20
42344 01021 W 3300 S ST
A 51A T WND BLWN/SHINE TO 45
42473 02000 W 3500 S ST
A 03E T UNDER SV CRNR
42512 05975 W 3500 S ST
A F2 BRICK WALLS TO 18
42475 03895 S 3520 W ST
A 05E BRICK TO 20
42309 0056Q W 3740 S ST
A 13A T E .SIDE OF DRIVE
42523 E 3800 S ST
A G2 HOG GEOMETRY OF CONCRETE
ET ADQa P&GE


©1/09/73
OCCUPANT
OWNER



BLUHENTHAL BROS

VACANT HOUSE
UNKNOWN


MARTINEZ JG
HANSON RL
HANSON RL
WHITAKER EH
WHITAKER EH
BINGHAM RL
BRADSHAW GL
LAVADIE M
LAVADIE M
UNKNOWN

FREDRICKSON E
CRACROFT JW
CRACROFT JW
ARMONDS LOUNGE
PERRY A
E OF 1061 3300 C

MURRAY 1ST THRIFT
MURRAY 1ST THRIFT
WHITTIER ELE SCHL
GRANITE SCHL DIST
UNKNOWN
SANCHEZ FD

UNDERPASS 1-215
CITY OF SALT LAKE
HOG
LOG


_M090
00035
00110
00040
J0220
0003S
00100
_DQO_60_

00040
00080
00040
00070
00025
00060
00040
00065
00030
00050
00020
00030
00017
00019
00012
00030
00020
00050
00010
00015
00010
00016
00030
00010
00015
00008
HIG
— — — —







00040
I
00040
1
00025
0
00018
9



00013
6
00012
9


00014-
9
00014
6




C L
L T E
A Y V
S P E
S E L
S
I

5 2 1
\ I 2

0
131

1 3 1
1 3 1

1 3 1
1 3 1

I 3 1
1 2 1

1 1 2
S 2 I

0
.5 2 1

7 1 3
1 2 1

1 3 1
9
S
M C
ARUM
T E S A
t F F P
N
29 2

1735
1735

1 2 7
1745

1131
1131

1131
1136

1745
1745

1136
1106

1 4. 6
2117

1106
1706

i 7 2 7
1 0 6
111

-------
                      APPENDIX D (UONT
U1AH COMPREHENSIVE BY^ C
ITY. STREET ADD, PAGE
SALT LAKE CITY» UT
LOC.NO. ADDRESS
COMMENTS


42520
A F37
42392
A 268
42554
A Hll
42386
A 208
42377
A 118




E 3900
HOG GEOMETRY OF
00100 E 3900




S ST
CONCRETE,
S
ST
01/09/73
OCCUPANT
OWNER "


1-15 UNDERPASS
CITY OF SALT LAKE

HOG
LOG


00016
00012

UNABLE TO LOCATE
00922 5
ROCKS IN FR
00740 W
BRICK TO 22
00699 W
BRICK PILE
42370 01036 W
A 03B
42371
A 048
42474
A 04E
42450
A 04D
42314
A 19A

01040 W
BRICK TO 21
W

02400 S
UNEXPLAINED
03443 S
UNEXPLAINED
400
YD
400

E
TO
N

400 S
TO 18
400

400
ADD
4000

5uO
500

42313 03499 S 500
A 17A«1BA HOG SHIN^
42312
A 16A
42311
A 15A
42310
A 14A
..03513 S
SHINE FR A
03585 S
T FLCOR SLA
03595 S.
500
ISA
500
-fc-*.
500
S

ST
400
ST

ST
ST

UNKNOWN
28TH WARD CHAPEL'

KETCHUM HARDWARE
KETCHUM CH


S ST
GUSS
S

E
W

W
W
TO
W
Y_A
W
HOG IN SWAMP ADD
42376 00412 S
A 10B NO SUCH ADO
4P45?
...0034.2 S
600
700
W
C


ST
ST

ST
ST
25
ST
RD
ST
GUESS
ST
ST
W OF 3266 WEST
UNKNOWN
HWY I 60 UNDERPASS
CITY OF SALT LAKE
CENTRAL; LANDSCAPE
FRENHER MC
LAMPER JL
LAMPER JL
BARKER J
BARKER
A*R MEATS
A*R MEATS
S OF 3585 S 500 W
UNKNOWN


A 6D UNEXPLAINED
42453
A 070
42454-
A 08D
42459
A 13D
00350 S
-U_NEXPJLA1KEQ
00440 S
UNEXPLAINED
00915 S
UNEXPLAINED
700
700

700
E
E

E
ST
ST

ST
STEVENS HENAGER C
STEVENS J
MID CITY PRO BLDG
CHRISTENSEN

00015
00007
00012
00009
00011
00009


00011
00009


00013
00009
00017
00009
00019
oooii
00016
00010
00100
00025
00016
00007

00015
00009
00015
00009
00013
00007
00014
00009
C L S
L T E M C
A Y V A R
HIG S P E T E
LOC S E L L E


9 I

0 6
13127

82217
00011
9 52111

6
82117

6
9 1
00013
9 52121
13127
00013
0 12121
00060
9 52111

0 1
6

31217
00015
6 71311
00012
6 61311
11317

U
S
E

0

9
0

0
0

9
0

9
0

0
0

0
3

0
9

9
0

0
9
A~
6

5
5
5
6

5
5

5
6
6
6

6
V

6
J!1
6'
6
6
112

-------
APPEN-DIX  D  (CONT )
VJAH rOMPPFHFNMVF RY CITYt STRfFT ADD. PAfiF
SALT LAKE ClTYi UT
LOC.NO. ADDRESS
r-OMMFNTS


42458 01399 S 700 E ST
A 120 RRICK TD 23
42455 01632 S 700 E ST
A 090 BRICK TO 19
42456 02226 S 700 E ST
A 100 T UMDFR W FHD OF SHOP
42457 f)?400 S 700 F ST
A 11D UNEXPLAINED-POSS GEOMETRY
42527 03225 S 700 E ST
A_G6 RRICK TO 18
42390 00755 W 700 N ST
A 248 BRICK TO' 19
42364 00939 S 700 W ST
A 85A BRICK TO 17
42363 01101 S 700 W ST
A 84A T ENTIRE SLAB *• PARKING
42362 01201 5 700 W ST
A 83A ORE IN EQUIP WASH 350
42306 03319 S 700 W ST
A IDA T WND BLKN ENTIRE PROP
42305 03327 S 700 W ST
A 09A T V;ND BLWN ENTIRE PROP
42304 03341 S 700 W ST
A 08A T WND BLWN ENTIRE PROP
42303 03349 S 700 W ST
A 7A*69A KNDBLNN T ENTIRE PROP
4j>?97 03354 S 700 H ST
A 1A HNDBLWN T ENTR LOT-ADD GUS.
42302 03363 S 700 W ST
A £A WNDBLWM T YD»TRACK IN SHOP
42298 03364 S 700 W ST
A 2A WINDBLOWN T *- SHINE TO 90
42301 03389 S 700 W ST
A 5A V.'NDBLWN T SM AREA BK 8LDG
42300 03415 S 700 W ST
A 04A S SD YRD POSS ORE HOG
42299 03422 S 700 W ST
A 03A HIG DUE TO 3RICK HOG SHIN
01/09/73
OCCUPANT
OWNER


WHITE ADVERTISING
HAWTHORNE SCHOOL
SLC SCH DIST
CONTINENTAL BEAUTY
LUND H
HOG
LOG


00015
00008
_04012
00009
00015
00008
HIG
LOC


00012
6


00120
7
C L
L T E
A Y V
S P E
S E L
S
6 1 3

713
7 1 2
S
M C
A R
T E
L £
N
1 1

I 7
1 1

_U_
S

0

0
1

H
A
P

6

6
1
HWY 1 80 UNDERPASS 00016
CITY OF SALT LAKE
LOS GRANT 2ND WARD
LDS CHURCH
LOS CHURCH 3 WARD

PACIFIC METALS
CASTLE
KOLDAIRE
WHILH1TE J
MACHINERY CENTER
PIERCE ESTATE
TURNER J.

GAYOILLE, CF
SOMMERS T
SOMMERS T
VACANT LOT
SOMMERS T
VACANT LOT
AMERICAN SMELTING
ENSIGN SHOE CO
ENSIGN SHOE CO
VACANT LAND
AMERICAN SMELTING
FIRE ENGINEERING
GILLETT H
WELDERS SUPPLY
POLLOCK H
AMER SMELT * REFIN
AMFR SKELT «• REFIN
00010
00014
OJOJ11
00011
00009
00012
00009
00050
00009
00014
00008
00090
00035
00110
00025
00050
00017
00050
00017
_09130_
00080
00110
00025
00090
00030
00035
OJU513
00018
00009
00080
00012

00014
9


00011
9 '
00150
9
00012
9



•00018
9



00012
9


00010
9
00012
9
00018
9
9
8 1 3

8 2. 2
5 2 1

5 2 1
5 2 I

1 3 1
1 3 1

1 3.1
0

0
5 2 1

0
522

5 2 1
5 2 1
1
1 1

1 7
1 1

1 1
1 1

1 7
2 7

1 1
1

1
1 1

1
1 1

2 1
1 1
0
0

0
0

3
0

3
3

3
2

4
^

4
^

0
0
6
6

6
6

1
6

5
5

6
6

7
7

7
7

6
7
                                                113

-------
                          APPENDIX ,D (CONT )
   HL COMPREHENSIVE BY CITY« STREET ADD.
SALT LAKE ClTYt UT
                                                 P_AGE _
                                                 01/09/73
                                                                    C    L    S
                                                                    L  T  E  M C
                                                                    a  V  v  ARUM
   LOC.NO.         ADDRESS
   	COMMENTS	
                                   OCCUPANT
                                    OWNER
                                                              HIG    S  P  E  T  E  S  A
                                                              -PC    SELL  E_L_P_
                                                                        S    H
   42528   02583    S  800  E  ST
   A G7 T  LAWN«FLO'riER  ED+UTIL  RM
                                 BRUNSWICK  JL
                                 BRUNSWICK  JL
                                                      00500   00130
                                                      00014     9     2211131
   .42366;	00615	 W  800  5  ST
   A 87A UNEXPLAINED
                                 _PORTLAND_CEMENT_CO	0001_0
                                 PORTLAND CEM  CO  UT   00007
                                                            _00 011	
                                                               9     5221106
   42476   01337    W  800  S  ST
   JL 6B ABANDONED  SCH-B^ICK  TO  19
                                 EDISON SCHOOL
                                                      00013
                                                      OQQ08
                                                                    7221705
                   S  900  E  ST
   A 23D BRICK  TO  18
                                 HOOLF LK
                                 HAMMOND H
                                                     _0_M12	0001*1
                                                      00009     6
2121106
   42467   01307    S  900  E  ST
   A 22D BRICK TO  17	
                                 ECONOMY ELECTRIC
                                                      00013   00011
                                                      00009     9     6211  1  0 5
                   S_?0_0  E  ST
   A 21D UNEXPLAINED
                                 JSRANITE WELDING	00014	Q0010_
                                 RALEIGH R            00008     9
                                                                    6121106
   -42465   02400    S  900  E  ST
   A 20D UMEXPLAIMED	
                                 HHY  I 80 UNDERPASS   00013
                                 CITY OF SALT LAKE    00009
   .42469	03230	S__900  E  ST_
   A 24D VAC  BUS  BRK  TO  22
                                                     JLQ013_
                                                      00009
                                                                            1  0 6
                                                                    5211706
   42324           S  900  W  ST
   A 30A*37A  OLD  TAILINGS  PILE
                                 OLD TAILING POND  I   3000*
                                 VITRO CORP	   02500
   42331
               S 900 H ST
                                 QLO_JTA I LI NG_PONP_2._Q29 C 0_
   A 45A WND  BLWN/SHINE  TO  400
                                 UNKNOWN
                                                      00090
   42339           S  900  >;  ST
   A 46A HOG  S HINE + POSS  WIN P BJ.K
                                 260 FT S OF SML CK   00400
                                                      002QQ
               	S_900.
A 47A WND BLWN/SHiriE TO 300

               s ~QOoTw"sf
                                 W_T.PILE.3300  S  ST _00200
                                 VAC LAND UNKNOWN    00090
   4237S  00201
   JLJ £B_.
                                 HWY  I 80 UNDERPASS   00015
                                               AJ1£___0_0 OJ JL
114
                                                                           JLJLJL
A 38A
42332
• A 39A
42336
A 43A
42337
A 44A
4233*5
OLD TAILINGS POND 2.
s 900 w ST
WINDS! OWN TAILINGS*SHINE

WND BLWN/SHINE TO 110
S 900 W ST
WND BLWN /SHJNE TO 160
S 900 W ST
VITRO CORP
N OF TAIL POND 2
UNKNOWN
s OF GRD CNTL HHSE
UNKNOWN
MILL CREEK SOUTH
UNKNOWN
SKL CRK N TO MILL
01700
00120
00012
00090
00080
00110
00060
00300
9
0

0
0

1 2 7
1 2 7

1 4- 7
1 <4 7

        147-
42375
A 098
42369
A 02R
00402 s 900 W ST
ROCK TO 20
00494 S 900 W ST
BRK TO 17 BUS CLOSED
VACANT 00014
00009
BOB » JOES MARKET 00012
00009

5
5

2 2
2 i

1
1

7
7

0
0

5
5

-------
APPENDIX D (CONT
UTAH CnMPPFHFN^TVF P.Y CTTYf STRFFT aHD. Pflf,F
SALT LAKE ClTYi UT
.LOG. NO. ADDRESS
POMMFNTS


43333 02550 S 900 W ST
A 40A UNEXPLAINED
42334 02560 S 900 W ST
A 41A
42335 02850 S 900 W ST
A 4?A T S Sr> OF PARKING LOT
42330 0319S S 900 V ST
A 36A T ENTIRE PROP-SHINE 1200
42339 03215 S 900 W ST
A 35A T ENTIRE PROP SHINE 550
42328 03237 .S 900 H ST
A 34A-T WIND8LWN/SHINE HOG
42327 03265 S 9QO W ST
A 33A T ENTIRE LOT-HOG SHINE
42326 03275 S 900 W ST
A 32A T POSS HND3LWN/SHINE HOG
42325-. 03235 S 900 W ST
A 31A POSS WINDBLOWN T * SHINE
42315 03302 S 900 W ST
A 20A T »;NL) BLWN ENTIRE YRD
42322 03331 S 900 W ST
A 28A T UNO OLN /SHINE TO 40
42321 03339 S 900 W ST
A 27A TU SLAB FLOOR+SHINE TO 30
42316 03340 S 900 W ST
A 21A T WND BLWN ENTIRE YRD
42317 03342 S 900 W ST
A 22A WINDBLOWN T ENTIRE PROP
42318 03344 S 900 W ST
A 23A«24A T WND BLWfj ENTIRE YRD
42320 03347 S 900 H ST
A 26A T WND BLN/ SHINE TO 27
42319 03432 S 900 W ST
A 25A N OF_JiSE_JN JUNK YRD DR*Y
01/09/73
OCCUPANT
OWNFR


NATIONAL AD CO
SCIENCE SECURITY
BROWN DIST CO
BROWN KC
GRAN CENTRAL' WAREH
PRICE J
WON DOOR CORP
WON DOOR CORP
WONDOOR CORP
V.'ONDOOR CORP
INVENTORY SALES
CROMAR G
VACANT LOT
UNKNOWN
SIERRA CORP
BARRET B
N OF 3300 S ST
UNKNOWN
KAY T
UNKNOWN
NIELSEN WI
NIELSEN WI
CORNELL S
CORNELL S
YATES R
UNKNOWN
BROWN L
UNKNOWN
COOK DL
HUDSON S
JOHNSON WE
JOHNSON WE
NORMAN N
NORMAN H
HOG
LOG


00015
00009


00060
_M012_
_Q25QO
00110
00550
_fi.0_100
00400
00090
00300
00120
00300
00120
00250
00090
00050
00020
00040
00012
00030
00012
00035
00020
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                                              115

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                            APPENDIX E

          U.S.  Environmental Protection Aqency's Informal
         Guidance for Assessment of the Need for Remedial
        Action  Based on the Follow-up Gamma Survey Reports
       for Communities which are Located Near Uranium Mills
       We recommend that tailings be removed if at all feasible
  and properly disposed of in a properly designated location,
  such as a tailings pile or on land provided for this purpose.
  Alternatives,  such as ventilation and the use of sealants,
  may also be utilized.  Consideration should be given to any
  potential adverse health impact of residual radiation level,
  the cost of reducing the residual radiation level,  and the
  economic effect of these protective measures.  Recommendations
  of actions to be taken in the assessment of anomalies are as
  follows:

       1.  Experience has shown that if tailings are  located
  more than 10 feet from an occupied structure, the uranium
  tailings will not produce elevated radon levels inside the
  structure.  They should still be removed when it is conveni-
  ent and at a minimal cost to the individual.

       2.  Ore or other radioactive sources should be properly
  disposed of if they have no specific value to the owners.

       3.  "External gamma level" is defined as the net corrected
  average ground floor gamma (AGFO) value for the occupied por-
  tion of the structure.

       4.  If external gamma levels inside a structure are equal
  to or greater than 20 MR/h above background, the indoor radon
  concentration level may be presumed to equal or exceed 0.01  WL
  above background.  If this condition exists, consideration
  should be given to further assessment to determine possible
  need of remedial action.

       5.  If external gamma levels inside a structure are less
  than 1 MR/h above background, it should be presumed that the
  indoor radon daughter exposures would be below 0.01 WL above
  background and no further assessment is required.

       6.  If external gamma levels inside a structure are
  equal to or greater than 1 pR/h above background but less
  than 20 yR/h above background, measurements should be made
  to determine the indoor radon daughter level, the location of
  tailings, and the need for and type of appropriate remedial
  action to be taken if warranted.
116

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                     AlMMiNDIX I: (.CONT)
     7.  If tailings are found outside a structure, the
cleanup and removal of material should result in levels as
close to background as possible.  In any event, the readings,
after cleanup, should not exceed 50 pR/h above background.

     Legislation exists which authorizes a Federal contribu-
tion to a joint Federal/State remedial action program in the
area of Grand Junction, Colorado.  However, there is no
legislative authority to provide funds for support of a remed-
ial action program in other areas.
                                                            117

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                           APPENDIX F

             U.S. Environmental Protection Agency's
           Recommendation for the Vitro Tailings Pile
             in Salt Lake City, Utah  (June 7, 1973)
      Studies at various uranium mill tailings pile sites have
 shown that the radon emanation from the tailings pile does
 not present a significant radiation exposure to the surround-
 ing community outside a radius of one-half mile from the site.
 Workers on, or visitors to, the surface of the pile or adja-
 cent to it would receive external gamma radiation exposure.
 The radon concentrations present on the Vitro pile exceed the
 current limits for population exposure; however, the short
 half-life progeny of radon are not in equilibrium with the
 parent radon.  Thus, the observed working level (WL) expo-
 sures in the air at the sites sampled is low, but significant
 working level exposures can occur in a structure built over
 or adjacent to the tailings material.

      EPA does not recommend approval of the "race track"
 proposal for the property known as the Vitro uranium mill
 tailings pile for the following reasons:

      1.  At the present time, the State of Utah has no regu-
 lations covering the use, non-use, stabilization, or other-
 wise effecting the disposition or control of radioactive
 mill tailings.

      2.  The current legal mechanisms by which the State of
 Utah may place restrictions on the property title or to con-
 trol the use of this property and structures built on it are
 not specifically intended to cover such complex phenomena
 as ionizing radiation.  This is of concern because of the
 possibility of future uses other than those originally
 approved which could result in unnecessary radiation expo-
 sure to workers or visitors at the tailings pile site.

      3.  Persons working at or attending given racing events
 would receive an unnecessary increment of radiation exposure.
 This unnecessary exposure, however low, would also be received
 unknowingly.  According to a recent report of the National
 Academy of Sciences, "No exposure to ionizing radiation should
 be permitted without the expectation of a commensurate benefit."
118

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                     M'Pl-NDIX 1;  (CONT)
     Because studies have shown that an unstabilized and
uncontrolled uranium mill tailings pile can create potential
public health problems, EPA recommends that:

     1.  The State of Utah establish the necessary regula-
tions to effect the disposition and control of radioactive
mill tailings.  These should not rule out the possibility of
some acceptable use for any given closed mill site.

     2.  The Vitro uranium mill tailings pile should be properly
stabilized to prevent migration of the tailings into the envi-
ronment and prevent public ingress to the area.  The pile
should be graded, covered, properly fenced, and controlled
to prevent any migration of the tailings into the surrounding
environs by wind or water erosion, or removal of tailings
for unauthorized purposes.

     3.  The State of Utah consider possible remedial actions
for the businesses located on the west side of the Vitro
uranium mill tailings pile along South 900 West.
                                                             119

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                           REFERENCES
 1.  Augustine, P.. J., Inventory of Active Uranium Hills and
 Tailings Piles at Former Uranium Mill's"^U. S .Department of
 Health, Education,and Welfare, U.S. Public Health Service,
 Aucrust 1970.

 2.  Evaluation of Radon-222 Near Uranium Tailings Piles,
 U.S. Department of Health,Education,and Welfare,U.S. Public
 Health Service, DER 69-1, March 1969.

 3.  Schiager, Keith J., The Evaluation of Radon Progeny Expo-
 sures in Buildings:  A Report on Equipment and Techniques,
 Colorado State University,Department of Radiology and Radia-
 tion Biology, Fort Collins, Colorado, March 15, 1971.

 4.  Thomas, Jess W., "Modification of the Tsivoglou Method
 for Radon Daughters in Air," Health Physics, 19:691, November
 1970.

 5.  10 CFR Part 20, U.S. Atomic Energy Commission, Standards
 for Protection Against Radiation.

 6.  10 CFR Part 12, U.S. Atomic Energy Commission, Grand Junction
 Remedial Action Criteria, September 28, 1972.

 7.  Tanner, Allan B., "Radon Migration in the Ground:  A Review,"
 The Natural Radiation Environment, University of Chicago Press,
 Chicago, Illinois, 1964, pp. 161-190.

 8.  Beck, Clifford K., Director, Office of Government Liaison
 Regulation, U.S. Atomic Energy Commission, Letter to Dr. W. D.
 Rowe, Deputy Assistant Administrator for Radiation Programs,
 U.S. Environmental Protection Agency, October 25, 1972.
120

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                                   TECHNICAL REPORT DATA
                            (Please read Instructions on the reverse before completing]
 . REPORT NO.
 EPA-520/6-74-006
                                                           3. RECIPIENT'S ACCESSIOf*NO.
4. TITLE AND SUBTITLE
 Environmental Surveys of the Uranium Mill  Tailings
 Pile and Surrounding  Areas, Salt Lake City,  Utah
                                                           5. REPORT DATE
                                                           August  1974;  Issuing Date
             6. PERFORMING ORGANIZATION CODE
 . AUTHOR(S)

 David L. Duncan  and  Gregory G. Eadie
             8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
                                                           10. PROGRAM ELEMENT NO.
                                                           11. CONTRACT/GRANT NO.
12. SPONSORING AGENCY NAME AND ADDRESS
 Environmental  Protection Agency
 National Environmental  Research Center
 Las Vegas, Nevada   89!14
             13. TYPE OF REPORT AND PERIOD COVERED
              Fina I
             14. SPONSORING AGENCY CODE
15. SUPPLEMENTARY NOTES
 16. ABSTRACT
 Environmental  surveys were conducted  for  the Utah State Division of  Health's Occu-
 pational and  Radiological Health Section  at the former Vitro Corporation  uranium
 m'I I  and the  Salt Lake City, Utah area.   The results of the surveys  indicated that:
 the external  radiation levels on the  tailings area exceed recommended  exposure limits
 for individuals  in the general population;  ambient levels of radon over the pile and
 In structures  built immediately adjacent  to the tailings pile are above the currently
 recommended concentration for the general  population; the working  level exposure
 In the  adjacent  buildings exceed existing  recommendations; tailings  material has been
 removed from  the site and used around dwellings and businesses; and  tailings material
 has become windborne and deposited  against dwellings and structures  in the vicinity.
 For general publ-ic areas (at distances greater than one-half mile from the tailings
 pile) the measured radon levels for the pile were not distinguishable  from natural
 background  levels and were found to be within current guides.
17.
                                KEY WORDS AND DOCUMENT ANALYSIS
                  DESCRIPTORS
                                              b.IDENTIFIERS/OPEN ENDED TERMS
                           c.  COSATI Field/Group
 airborne  radioactivity, mill tailings,
 radiation exposure,  radon, Salt Lake  City,
 uran i urn
18. DISTRIBUTION STATEMENT
 Re lease to  pub I ic
19. SECURITY CLASS (This Report)
Unclassi f ied
                                                                         21. NO. OF PAGES
                                              20. SECURITY CLASS {This page)
                                               UncIassi f ied
                                                                         22. PRICE
EPA Form 2220-1 (9-73)

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