ML20154G766
| ML20154G766 | |
| Person / Time | |
|---|---|
| Issue date: | 01/03/1985 |
| From: | Kinneman J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Biaskowsi S AFFILIATION NOT ASSIGNED |
| Shared Package | |
| ML20154G673 | List: |
| References | |
| FOIA-98-246 NUDOCS 9810130300 | |
| Download: ML20154G766 (1) | |
Text
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/ g "C99'g UNITED STATIS NUCLEAR REGULATORY COMMi$slON
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REoCN I E
est PAnn AveMut xmo or enussia.esNNsVLVANI A 19404 0 3 JAN 1985 Lamb and Corcoran ATTN: Steve Biaskowski 145 Main Street Hackensack, New Jersey 07601 i
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Dear Mr. Biaskowski:
As you requested by telephone on December 13, 1984, enclosed are the portions I
of Report No. 99990001/81-05 that have been made public to date. Not part of I
this enclosure is Attachment 6 which lists approximately 28 properties in the Maywood area which were jiurveyed and where no radiation levels above nonnal background were found. LN is listed on Attachment 6 as a property which was surveyed on May 4,1E and where no radiation levels above 4
normal background were found.
I hope this is responsive to your request and should you have any questions please contact Jay M. Gutierrez, Regional Counsel at (215) 337-5321.
t Sincerely, 1
o n D. Ki neman, Chief Nu l, ear Metals Section A ision of Engineering &
Technical' Programs m em l
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9810130300 980929 PDR FOIA DECARLO98-246 PDR
?[l 0l.D 03 0 0
V. S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION I Report No.
99990001/81-05
Subject:
Maywood, New Jersey Surveys Uncontrolled Locations in Radioactive Material Inspection At:
Maywood, New Jersey Inspection Conduct d-il 30, Ma 1, 4, 5, 6, 1981 Inspectors' 0M h
Yf f "M Tafp*Je
,7atfia tion '37iFci al i st date
- k'ui, GMAfr dItI 9i F. Costello, Radiation Specialist
'date '
g Johan q r 6/S /7/
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f u;k, Radiation Specialist
/ date 4
&&/w J. Mc(tan, RadiaQen Lab' oratory Specialist
' da(e W/
bb T( acksdt, diatiori Specialist a'te Approved by:
u D. Kinne6an, Chief, Materials adiological Protection Section
/ dafe Inspection S
.ary:
Inspection on April 30, May 1, 4, 5, 6,1981 Areas Inspected:
Measurements of environmental radiation levels in Haywood, New Jersey.
This inspection involved 79 inspector-hours by five region based inspectors.
Results: There are three areas of Maywood, New Jersey, where radioactive material exists as contamination in uncontrolled areas.
Some of this contamination is in a residential area and is creating radiation dose rates as high as 0.25 millirem per hour in a residence and 3 millirem per hour in a private yard.
Region I Form 12 (Rev. April 1977)
ENCLOSURES TRANSMITTED : Z '
H CONTAIN 10 CFR 2.790 INFORMATION f-ff{f(+(D7t/O 2
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i DETAILS 1.
Persons Contacted Resident C Resident 0 Contact was also made with approximately 20 to 30 local residents to request permission to enter private property.and explain the purpose and results of the surveys. A meeting with local officials was held on May 8, 1981.
===2.
Background===
In 1916 the Maywood Chemical Works began processing ores to extract thorium.
In 1954 this activity was first licensed by the AEC.
Processing ceased in 1956.
In 1959 the Stepan Chemical Company bought the Maywood Chemical Works.
The former thorium processing area and known waste storage areas were decontaminated between 1963 and 1968.
In late 1980 onsite and offsite thorium contamination was discovered. NRC activities in this regard are documented in Report No. 40-8610/80-01.
3.
Measurements of Environmental Radiation Levels To evaluate the possibility of additional offsite thorium contamination, in 1980, the NRC requested that an aerial survey of Rochelle Park /Maywood, New Jersey be performed by EG&G Inc., a Department of Energy contractor.
This survey was. performed on January 26, 1981.
The final results of.the.
survey were transmitted to the NRC on April 28, 1981.
Copies of portions of the report are enclosed as Attachment 1.
Regional office review of these survey results determined that followup ground surveys were necessary in six areas., These surveys were conducted on April 30, May 1, 4, 5, and 6, 1981.
Three of these areas, one near the Riverside Cemetery, one near the National Guard Armory, and one in the industrial area near the Washington School, were identified on the aerial survey as representing variations in natural background radiation levels.
Surveys performed by the NRC inspectors showed no radiation levels in excess of background in these areas. Therefore, it is concluded that the indications in the serial survey for these areas are, indeed, the result of variations in natural background.
Three other areas were identified by the aerial survey as having elevated 4
radiation levels due to thorium-232 (based on the presence of thallium-208 gamma rays).
These areas include a residential area to the north of the
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3 Stepan Chemical Company facility, an empty lot to the southeast of the Stepan facility near Coles Brook, and an industrial area directly south of the Stepan facility.
The inspectors conducted extensive surveys in these three areas.
In the residential area north of the facility, increased radiation levels due to thorium contamination were found on six adjacent residential properties with one additional minor spot of contamination on the lawn of a nearby residence.
In addition to those properties where contamination was found, a minimum of twenty-eight (28) private lots were surveyed in this area where no radiation levels above background were found.
These
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are identified in Attachment 6.
Sidewalks and streets were also surveyed in this area and no radiation levels above background were found.
In the six house area, the inspectors surveyed the inside of residences and the adjacent properties.
These surveys included ambient gamma dose rate measurements, soil sampling in the yards, and a seasurement of airborne radioactivity inside the house with the highest measured gamma radiation level (Residence D).
The results of the radiation surveys of the houses and yards are included as Attachments 2 and 3.
The results of soil sample analysis are included as Attachment 5.
These surveys showed that there was soil contaminated with thorium on these properties and that this contamination resulted in elevated radiation levels in each of the six yards and inside two of the residences (Residences C and D).
A small increase was found inside a small area of a third residence (Residence F).
A small area of contamir,ation was identified in the yard ef' Residence I (Attachment 3, page 2).
The measurement of airborne radioactivity in Residence D indicated a concentration of radon-220 of 1.6x10-12 uCi/cc, which is well within the limits in 10 CFR 20 Appendix B, Table II, column 1.
The inspectors discussed the survey results with the residents of each of the homes shown in Attachments 2 and 3.
The inspectors surveyed the unoccupied lot to the southeast of the facility along Coles Brook.
They noted that the area had apparently been used as i
dump periodically, since there were various materials and piles of soil scattered across the property.
The survey identified several locations of contamination at this site.
The survey results are included as Attachment-7.
Soil sample results are included in Attachment 5.
The inspectors surveyed the industrial complex south of and adjacent to i
the Stepan facility.
They observed elevated radiation levels in unoccupied outdoor areas in the industrial complex.
No radiation levels above
! ' - fj background were found in any surveyed building.
Results of surveys of this industrial area are included as Attachment 8.
m
4 4
Dose Estimates for Residents of House With Highest Radiation Levels (Residence 0)
On May 8,1981, an NRC inspector spoke with Resident 0, who occupies Residence D in Attachments 2 and 3, and was informed that Resident 0 and her husband have been retired during their 61/2 years of residency at this location.
She estimates that she spends 20-22 hours per day in the house while her husband spends virtually all of his time in the house.
Based on this approximate 100% occupancy, the inspectors estimate these individuals' annual dose as follows:
Location Time Per Day Time Per Year Dose Rate Annual Dose Bedr'om 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2920 hours 0.25 mrem /hr 730 mrem o
Remainder of House 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> 5840 hours 0.10 mrem /hr 584 mrem Total 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 8760 hours 1314 mrem Based on 6 1/2 years of residency, the inspectors estimate that each individual has received a total dose of approximately 8-9 rem.
5.
Meeting With Local Officials On May 8,1981, NRC representatives met with officials of two local municipalities (Maywood and Rochelle Park, New Jersey) at the Maywood Police Station. During this meeting, NRC representatives provided information regarding the aerial survey and results of confirmatory ground surveys.
The local officials expressed their concern about the contamination in residential areas and requested information regarding cleanup of these areas.
The NRC representatives stated that information regarding the, time schedule and standards for cleanup of these areas would not be available until the responsible agency was identified.
Ongoing NRC efforts to identify the responsible agency were discussed.
Participants in this meeting are identified in Attachment 3.
6.
Interviews With Local Residents On May 7, 1981, inspectors interviewed Resident C at Residence C (Attachments 2 and 3) in Maywood which had belonged to Resident C's mother until her recent death.
Resident C's attorney was present during the interview.
Resident C stated that he was born in 1934 and had grown up in this house.
He stated that his father had worked for Maywood Chemical Works j
from 1912 untti 1960. He remembers that, circa 1945-1946, his father used large quantities of waste leaves and ash taken from Maywood Chemical Works to fill the plot of land immediately behind the house.
He does not
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recall any other waste being used as fill material. He believes that most of the fill material was placed on the section of land on which l
Residence D was later built.
He stated that the maximum thickness of the fill was about three feet.
A thin layer of top soil was put over the fill at the time the fill was added.
Resident C said that a contract of sale had been signed for this house but that a closing date had not yet been established.
His attorney stated that he would contact the prospective buyer's attorney and inform him of the situation.
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Resident C stated that he recalls that other employees of Maywood Chemical Works also used waste material as fill for their properties.
As he was quite young at the time, he had difficulty remembering any specific i
l properties, but suggested an area not far from Residence C as being a l
possible location.
The inspectors surveyed this area and found no radiation l
levels in excess of natural background.
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l ATTACHMENT 5 REPORT NO. 99990001/81-05 SOIL SAMPLE RESULTS Concentration of thorium-232 Sample (picoeuries/ gram)
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Identification Samplino Location
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(See Attachments 2, 3 & 7)
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8 Residence C 37.5 1 0.7 C
Residence C 208 1 1.3 I
C Residence C 213
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E Vacant Lot 121.2 + 0.9
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These samples were taken at a depth of 4-6 inches. All other samples are surface samples.
These samples were analysed by gamma spectroscopy using an intrinsic germanium detector hooked to a computer based multi-channel analyser.
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l ATTACHMENT 9 REPORT NO. 99990001/81-05 Attendance at Meeting with local Officials, May 8, 1981 Maywood Police Station Local Officials:
The Honorable Margaret Roukema, Congresswoman, New Jersey Seventh District The Honorable John A. Steuert, Jr., Mayor, Borough of Maywood Mr. Robert Cannici, Member, Rochelle Park Township Committee Mr. Rodger Ludwig, Commissioner, Maywood Town Council Mr. Edward McNierney, President, Maywood Board of Health Mr. Peter Scanel, Maywood Zoning Board Mr. Cesare Paradi, Chief, Maywood Police i
l Mr. John Tripucka, Sergeant, Maywood Police State of New Jersey Representatives:
Mr. John Hague, Executive Assistant to the Director, Division of Environmental Quality i
Mr. Frank Cosolito, Chief, Bureau of Radiation Protection l
Mr. Joseph Morris, Radiation Physicist, Bureau of Radiation Protection MS. Jeannette Eng, Director, Radiation Decontamination Assessment Section, Bureau of Radiation Protection l
l Stepan Chemical Company Representatives:
Mr. John S. O' Brian, General Manager, Stepan Chemical Company Mr. Richard L. Jacobson, Attorney, Mayer, Brown and Platt Ms. Joan Fread, Attorney, Mayer, Brown and Platt Mr. Henry W. Morton, Consultant, Nuclear Safety Associates i
NRC Representatives:
Mr. George H. Smith, Director, Division of Emergency Preparedness and Operational Support, Region I Mr. John D. Kinneman, Chief, Materials Radiological Protection Section, Region I Mr. Gary Sanborn, Field Public Affairs Officer, Region I Ms. Myu A. Campbell, Radiation Specialist, Region I Members of the press were also in attendance, s!
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