Text

Operational Environ Radiological Monitoring Program,1979 Annual Rept
	ML19296D567
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	03/31/1980
From:	Chandrasekaran, Kohl K; EBERLINE INSTRUMENT CORP.
To:	;
Shared Package
ML19296D566	List: ML19296D565; ML19296D567;
References
	PGE-1006-79, NUDOCS 8003050477
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TROJAN NUCLEAR PLANT OPERATIONAL ENVIRONMENTAL RADIOLOGICAL SURVEILLANCE PROGRAM JANUARY through DECEMBER 1979 Prepared for PORTLAND CENERAL ELECTRIC COM?ANY

'by EBERLINE INSTRUMENT CORPORATION MIDWEST FACILITY As a Contractor to PORTLAND GENERAL ELECTRIC COMPANY FEBRUARY 1980 Data Compiled by:

2 ; fn )

Ka'thrynA.@ohl, Administrator

Written, Reviewed and ddthdkA2*

Approved by: _Chandrasekarad E.

S., Manager N

mac g

ff INDEX Page SECTION 1.0 -- PREEACE 1-1 Abstract......................................

Introduction..................................

1-2 Summary and Conclusions.......................

1-2 SECTION 2.0 -- SAMPLING PROGRAM 2-1 Sampling Locations 2-1 Sampling Procedures Yearly Agricultural Survey.-..................

2-14 SECTION 3.0 -- ANALYSIS PROGRAM Analytical Procedures and Counting Methods....

3-1 3-4 Quality Assurance Results of EPA Interlaboratory Comparisons....

3-5 Results of USDOE Quality Assessment Program...

3-6 SECTION 4.0 -- RESULTS AND DISCUSSION Samples from the Terrestrial Environment 4-1 Samples from the Aquatic Environ =ent 4-4 Special Collections...........................

4-5 SECTION 5.0 -- DATA TABLES Comments On, and Terms Used in Data Tables....

5-1 Radioactivity in Air Sampir 5-2 Animal Tissues............... 5-12 Produce Samples.............. 5-13 Grass Samples................ 5-13 Well Water Samples........... 5-14 Milk Samples................. 5-15 Soil Samples................. 5-18 Precipitation Samples........

5-19 Ambient Gamma Radiation Levels................

5-20 Radioactivity in Surface Water Samples........ 5-22 Shoreline Soil Samples....... 5-25 Sediment Samples.............

5-25 Aquatic Plants Samples.......

5-26 Fish Samples.................

5-27 Radioactivity in Special Samples..............

5-28

SECTION 1.0 PREFACE 1-0

ABSTRACT This report presents the data obtained through the analyses of environ-mental samples collected through the Portland General Electric 1rojan Nuclear Plant Environmental Radiological Surveillance Program f or the period January 1, 1979 through December 31, 1979.

The activity present above detection limits in the routinely collected sample media was observed to be of natural, atmospheric f allout and possibly Trojan origin.

Small amounts of Co-57 and Ma-54 were observed in one sample of aquatic vegetation collected from the Columbia River.

However, these small amounts were lower than the design objective amounts in the Environmental Technical Specifications for edible leafy vegetables such as lettuce. These radionuclides are released by the Trojan Nuclear Plant into the Columbia River in low concentrations well within the Technical Specification limits and highly concentrated by the species of aquatic media collected.

1-1

INTRODUCTION The Trojan Nuclear Plant, a 1130 Mwe pressurized water reactor, first achieved criticality on 15 December 1975, approximately one month after receiving its operating license from the Nuclear Regulatory Commission.

This report presents the analytical data from the Environmental Radio-logical Surveillance Program with appropriate interpretation for 1979.

The analytical contractor during this period has been Eberline Instrument Corporation.

In comparing data obtained during this period with those from previous periods, care should be taken to ensure that differences in procedures between the several contractors are considered. This is par-ticularly true for " gross beta" measurements for which the use of differ-reference nuclides may produce apparently significant differences in ent gross beta concentrations.

Information concerning environmental radiological surveillance programs prior to this period may be found in earlier reports.

SUMMARY

AND CONCLUSIONS Radioactivity of natural, fission product and neutron activation origin was observed in the Trojan on-site and off-site, Oregon and Washington terrestrial and aquatic environments. The levels of radioactivity and specific radionuclides observed during this period were generally compara-ble to the preoperational baseline and operational data accumulated since the Trojan Nuclear Plant achieved criticality in December 1975.

A very small amount of cobalt-57 and manganese-54 were detected in one sample of aquatic vegetation. However, these small amounts were lower than the environmental design objective amounts for edible leafy vege-tables such as lettuce. These radionuclides are found in the reactor coolant and their presence in the two samples may be due to releases from the Trojan plant.

1-2

ee SECTION 2.0 setpLING PROGRMI 2-0

2.0 SAMPLING PROGRAM AND PROCEDURES 2.1 SAMPLING LOCATIONS Eighty-two sampling locations are used in the environmental radio-logical surveillance program, 76 on land and 6 in the Columbia River.

This is an increase of 45 sites over 1978.

Forty-four of the addi-tional sites were ambient radiation measurement locations atd one was a milk sampling location. The sampling locations are shown on Figures 2.1 and 2.2.

Table 2.1 includes a listing of the sites, their distance f rom Trojan, and the type and frequency of sample collec tion.

2.2 SAMPLING PROCEDURES 2.2.1 AlR PARTICULATE AND RADI0 IODINE Air particulate and radioiodine sampling was done weekly. The samples were gathered with a portable, low-volume air sampling device which is designed to draw a constant flow rate regardless of filter loading. The sampling devices were set to maintain 1-cfm.

The sample pump, metering devices, and timer were housed in a weatherproof case which was mounted in a covered, open-sided sampling platform. The filter and cartridge were located in an inlet parallel to and 1 meter above the ground. Glass fiber filters were used to collect particulate matter. Activated charcoal cartridges were used to collect radiciodine.

The glass fiber filter was removed f rom the air sampler and placed in a 2" plastic Petri dish. The activatad charcoal car-tridge was removed at the same time. Air flow readings and other data required to compute the levels of radioactivity were recorded and submitted to the analysis laboratory along with the camples.

2.2.2 AMBIENT RADIATION MEASUREMENTS USING TLDs The rmoluminescent dosimeters (TLDs) were placed for field exposure and collected monthly, auarterly, and annually. TLDs were transported to the field in lead boxes to ensure low back-ground levels. The dosimeters were placed one meter above ground level in polyvinyl chloride holders.

At the time of collection the tecnnician recorded when the dosimeter uas retrieved, the exposure period, and any abnormal conditions such as moisture in the holder, damage done by animals. etc.

Care was taken to minimice exposure between collection and delivery to the laboratory. Control dosimeters were carried with the field ilosimeters during collection and delivery.

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TADLE 2.1 SAMPLING LOCATIONS AND FREQUENCY BY TYPE SAMPLE LOCATION RADIA1.

1ERRESTRIAL NNATIC Mileage Direction Air Air Well Surf Shore Partic I-131 TLD Rain Soil Veg Anim Milk Water Water Sed Soil Veg Anim ON-SITE IA - U.S. 30 & E-W Road 0.8 NW QA S/A S/A Q

S/A S/A S/A to Prescott IB - U.S. 30 W of con t a imeen t 0.5 WSW QA Q

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21 - SE of plant on Columbia River shore 0.3 SE Q

22 - Between Recreation Lake and U.S. 30 0.4 SSW Q

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TA.BI,F.7,J _(Coitt.1,RT11NG.LOCAT10!iS AflD FREllUfNCY fiY "YPF SAMPLE LOCATION RADIAL TERRESTRIAL AQUATIC H11eage

. 4ection Air Air Well Surf Shore Part'ic I-131 TLD Rain Soil Veg Anim Hilk Water

Water, Sed Soil Veg Ania 23 - Recreation Lake near E-W road to plant 0.5 SW Q

24 - U.S. 30 S of E-W road to Prescott 0.6 WNW Q

64 - NW corner of Reflection Lake 0.5 W

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W QA S/A S/A S/A 6A - Cobic (Easters Landing) 1.7 SSE Q

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Q 27 - Columbia City (Censman Road) 10.0 S

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SAMTLE 1hCATION RADIAL TABLE 2.1 (Cont.) SAMPLING LOCATIONS AND TREQUENCY BY TYPE TERRESTRIAL, Mileage Direction Air Air A?t?ATIC Well Surf Shore Part'ic I-131 TLD Rain Soil Veg Anim Milk Water Water; Sed Soil Veg Anim WASIIINCTCN 9B - Voodland (Cow 11tr FUD) 11.1 SSE W

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10 - Kalama (Sewage Plant) 3.0 SE W

Q 11A - Kalama River (Columbia River) 0.7 SE QA 115 - Kalama River (PUD Substation) 1.4 SE V

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12 - Carroll's Bluff 1.8 NE QA 13 - Vision Acres 3.4 NNE QA 14 - Longview (Ocean Beach Substation)

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M S/M 16 - Smith Dntry 10.8 SSE S/A M,S/M Q

18 - Standard Dairy 8.0 NN'J M.5/M

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40 - Longview (RR) 5.2 t:NW Q

41 - Eufaula 10.3 NNW Q

42 - Keino (near Irwy 4) 5.0 N

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TABLE 2.1 (Cont.) SAMPLING t.E ATIONS AND FREQULNCY BY TYPE SAMPLE LOCATION in n g M' TERRES1RIAI' AQUATIC Mileage Utrection Air Air Well Surf Shore Partic I-131 TLD Rain Soil Veg Anim Milk Water Water Sed Soil Veg Anim 45 - Mount Brynton 10.0 NNE Q

l 46 - Rose Valley 5.0 NE Q

47 - Smith Mountain 10.0 NE Q

48 - H; Pleasant 5.0 ENE Q

49 - Cob a = !!aun+.aln 10.0 ENE Q

50 - Kalama River (Fallert Road) 5.0 E

Q 51 - Kalar.a River (Kalarca River Road) 10.0 E

Q 52 - Kalama (China Carden Road) 5.0 ESE Q

r4 53 - Ross Peak 10.0 ESE Q

tc 54 - Cloverdale 5.0 SE Q

55 - Woodland (Green Mountain Road) 10.0 SE Q

57 - Woodland (Dike Road) 10.0 SSE Q

58 - Kalama (N of Port of Kalama Marina) 0.6 ESE Q

59 - Kalanu (S of Sports-man Road) 0.5 E

Q 60 - Kalama (N of Sportsman Road)

'0. 5 ENE Q

61 - Carrolls (W Kings-bury Road) 0.7 NE Q

62 - W of Carrolls Channel 1.0-NNE Q

TAnLE 2.1 (Cont.) SAMPLINC LOCATIONS AND FRFQUENCY BY TYPE

.,__ S MPJJJ SCATION P.A11l AL TI:RRg;TRMt AjlUATIC M11 car,e

!)1r ec t ion Air Air Well Surf Shore Partic I-131 TLD Rain Soli veg Anim Hilk W.t ar Water Sed soil Veg Anim colin!BIA RIVER CRI - Rainter 68.3 PN S/A S/A CRIA - Rainier 66.6 t'W 4

S/A CR2 - Lindberg 69.6 titN Q

S/A CR3 - Trojan 72.4 E

Q S/A S/A S/A S/A CR4 - Falama 75.2 SSE Q

S/A CR5 - Woodland 81.5 SSC S/A S/A S/A 1-LEGEND As 1

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- Monthly S/M - Semi-monthly MC - Monthly composite S/A - Semi-annually I

2.2.3 PRECIPITATION Rainwater samples were collected monthly from established precipitation reserv71rs. The reservoir was removed from its holder and agitated to ensure thorough mixing of the contents. The contents were measured with a graduated liter cylinder and the volume recorded on the sample label.

Four liters, or the total volume if it was less than four liters, were placed in a polyethylene collection bottle.

Sixty mis samples were taken for tritium analysis.

Concentrated hcl was added to the large water sample only.

Labels were attached to the polyethylene jars and the tritium bottles.

The identification number of the sample site, the date collected, and the volume measured were recorded on the data collection form.

2.2.4 TERRESTRIAL SOIL Terrestrial soil samples of about one quart in volume were taken twice a year. The soil samples were taken from a one-square-foot area with the vegetation and large rocks removed before sample collection. The soil sampling depth 'aried between 1 to 4 inches and the soil was passed throddh a No. 6 sieve before placing in the plastic collection bottle:

The collected terrestrial soil samples along with informa:Lon as to identification number of sample site and date coll 3:ted were shipped to the analysis laboratory.

2.2.5 TERRESTRIAL VEGETATION Vegetation samples were collected semi-annually.

Representative samples of tuberous and foliar fruits and vegetables were collected during local harvesting. Wild berries were collected when avail-able.

Grass samples were obtained from a sizable area because of the large (2-3 pound) sample size. Grass was removed at ground level.

Samples were sealed in plastic bags immediately following col-lection taking care not to include any soil or foreign material.

The bags were labelled with sample type, collection date, and sampling location.

Samples were refrigerated until shipment.

2.2.6 TERRESTRIAL ANI!MLS Animal samples were taken soci-annually from cattle, goats, and wildlife (small mammals). Most samples were edible flesh from domestic animals though cattle and goat thyroids were also taken.

Samples from domestic animals were purchased from Jocal f armers or slaughter houses af ter determining where the animal was raised and the slaughtering date.

2-11

Samples were labelled as to type (muscle, thyroid, heart, liver, bone). Muscle and bone specimens were approximately three pc. ads each. The entire heart, liver, and thyroid were cellected. All specimens were packed in plastic con-tainers.

The entire specimens of smaller mammals such as c possums or wild rabbits were taken.

The samples were labelled with sample type, collection data and sampling icca-tion.

Samples were refrigerated until shipment.

2.2.7 MILK Milk samples (cow or goat) were collected semi-monthly (after 10/01/79) when the animals are pasture-fed, and monthly when they were barn-fed.

Milk was collected in special Kalgene Polyethylene bottles.

Iodine was concentrated on an ion exchange resin to improve detection sensitivity. This was done prior to shipment of samples to the analysis laboratory. The whole milk (after iodine removal) and iodine resins were labelled with collection data and sampling location, then shipped for analysis.

2.2.8 WELL WATER Well water was collected quarterly either from the tap that leads off the pump or direc:'- from the well itself. At sites with faucets the line was purged for one minute prior to collection.

Sixty el were crawn from the one gallon sample for tritium analysis. The remainder of the sample was put in a one-gallon polyethylene bottle and acidified with concentrated hcl. All bottles were securely sealed and labels prepared specifying site, collection date, volume, and sample type.

2.2.9 SURFACE WATER Surface water was sampled monthly except at Sampling Location 2 (Rainier) where monthly composites were collected.

Samples were taken by submerging a bucket in the water body. Approximately one gallon was collected. From that, 60 mis were taken for tritium analysis. The remaining water sample was put in a ene-gallon polyethylene bottle and acidified with concentrated hcl. The bottles were securely sealed and labels prepared specifying site, collection date and volume.

2.2.10 BOTTOM SEDIMENT Sediment samples were collected semi-annually. Approximately four inches of sediment was collected with an Eckman or Peterson dredge.

Specimens were packed to within 1/4" of the ton of a one-quart polyethylene container.

Excess water was de: anted before being sealed with a tight fitting lid.

The data collection sheet was kept with the labeled samples and delivered to the analysis laboratory.

2-12

2.2.11 SHORELINE SOIL Shoreline soil samples of about one quart in volume were taken twice a year.

The soil samples were taken from a ane-square-foot area with the vegetation and large rocks removed before sample collection. The soil sampling depth varied between 1 to 4 inches and the soil was passed through a No. 6 sieve before placing in the plastic collection bottles. The collected shoreline soil samples along with information as to identification number of sample site and date collected were shipped to the analysis laboratory.

2.2.12 AQUATIC VECETATION Aquatic vegetation samples were taken semi-annually.

Rooted species were obtained in shallow, quiescent areas of the surface waters during the growing season when they were emergent.

Fila-mentous (slime) species and mosses were obtained from submerged rocks.

Samples were collected uith trowel or clippers where appropriate.

Three to five pounds of aquatic grass were collected.

Samples were sealed in bags with care taken not to include soil or foreign material.

The bags were labelled with sample type, collection date, and sampling location and shipped to the analysis laboratory.

2.2.13 AQUATIC ANIMAL Aquatic animal (fish) sampling were performed semi-annually.

Both indigenous (carp) and anadromous species were acquired by seining netting. and trapping.

If the fish fork length exceeded eight inches, the viscera was separated from the muscle and head.

Homogeneous samples were placed separately according to species, in the specified plastic container.

If the fish were smaller than eight inches, they were sorted by species and cut or blended into a mixture before being placed in containers. The containers uere labelled with sample type, collection date, and sample location and shipped to the analysis laboratory.

2-13

2.3 YEARLY ACRICULTURE SURVEY WITHIN FIVE-MILE RADIUS OF TROJAN 2.3.1 INTRODUCTIOS The annual survey of agriculture production within a five-mile radius of Trojan Nuclear Plant was done on November 14-15, 1979. Observations were made of the dairy animals (cows and goats), meat animals (cattle and sheep), vegetable gardens, and orchards within this area.

This survey was done by driving the roads within a five-mile radius of Trojan cor.tainment and recording the address and location of any of the above-mentioned agriculture production activities.

2.3.2 DAIRY ANIMALS Table 2.2 presents the locations where cattle dairy animals were observed within the five-mile radius of Trojan.

In Table 2.2 and the following tables the radial direction and radial mileage f rom Trojan containment are presented for each location along with the address. The radial direction is one of the sixteen different co= pass points. The radial mileage was estimated from map positions for each location.

Each of the location tables is organized into the sixteen compass directions, starting with the south direction and proceeding in a clockwise manner around the compass.

Within each compass direction, the locations are presented in order of increasing radial distance. Table 2.3 presents the locations where goat dairy animals were observed within the five-mile radius of Trojan.

Figure 2.3 presents the map locations for the dairy animals, both cattle and goat, noted in Tables 2.2 and 2.3.

2.3.3 MEAT ANIMAI.S Table 2.4 presents the locations for the cattle meat animals.

Table 2.5 presents the locations for the sheep meat animals.

2.3.4 VEGETABLE GARDENS Table 2.6 presents the locations for vegetable gardens within a five-mile radius of Trojan.

2.3.5 ORCHARDS Table 2.7 presents the locations for orchards within a five-mile radius of Trojan.

2-14

4 TABLE 2.2 DAIRY ANIMALS - COWS Within Five Miles of Trojan - Novenber 1979 (a) Radial (a) Radial Number Direction Mileage of Cows Address SSW 1.7 1

Nicolai Road and Bishop Road SSW 5.0 125

';icolai Road (Winas Dairy)

ENE 4.3 1

Box 2438, Mt. Pleasant Road (a): Measured from Trojan Containnent 2-15

TABLE 2.3 DAIRY ANIMALS - GOATS Uithin Five Miles of Trojan - Novenber 1979 (0) Radial (a) Radial hunber Direction Mileage of Goats Address S

2. 0 1

Nicolai Road and U. S. Highway 30 SSU

3. 0 25 Monitoring Site 17A, Nicolai Road and Beaver Hones Road (E2ndle Dairy)

SSU 3.0 25 Nick Thomas Road SSU 4.5 30 Orr Road (Dale Marshall)

SSU 4.7 12 Orr Road SSU 5.0 20 Orr Road (Finnegan)

SU 4.0 1

Box 824A, Route 4, Walker Road U

3. 0 3

Box 4378, Beaver Springs Road U

3. 0 2

Box 4368, Beaver Springs Road UNU 4.2 2

Box 725, Thistle Hill Road NNU 2.0 2

Laurelucod Road (Allard Residence)

NNU 2.0 2

U. S. Highway 30 N

4.0 1

Rose Valley Road UNE 2.5 1

Box 1106, Fish Pond Road NNE 3.5 1

Box 327, Rose Valley Road NNE 3.5 1

Box 501, Rose Valley Road NE

2. 0 1

Box 657, Mt. Pleasant Road NE 3.5 4

Box 601, Fish Pond Road NE 3.8 1

Box 435, Fish Pond Road NE

4. 0 1

Sox 369, Fish Pond Road ESE 5.0 1

Sinnons Road ESE 5.0 1

Sox 2222, China Garden Road SE

4. 0 1

Box 3630, Meeker Road SE 4.7 1

Box 201, Gore Road (a):

Measured from Trojan Containment 2-16

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TABLE 2.4 MEAT ANIMALS - CATTLE Within Five Miles of Trojan - November 1979 (a) Radial (a) Radial Numbe r Direction Mileage of Cattle Address i

S 4.0 150 U. S. Highway 30 ( A. Leppin; Columbia Stock Ranch)

S 4.5 3

Highland Road S

4.7 50 Tide Creek Road SSW l.7 12 Nicolai Road and Bishop Road SSU 3.5 20 Fairview Road and Nicolai Road SSW 4.5 75 Holbrook Road SSW 4.5 25 Barton Road and Nicolai Road SSW 4.7 3

Orr Road SU 1.5 3

Bishop Road and Neer City Road SW 1.7 50 Monitoring Location 5, Bishop Road SW 1.7 3

Box 849, Bishop Road SW 2.0 1

Nick Thomas Road SW 3.0 25 Beaver Homes Road SW 3.5 75 Beaver Homes Road SU 3.5 3

Box 858, Beaver Homes Road SW 3.5 6

Box 860A, Beaver Homes Road SW 4.0 1

Box 824, Route 4, Walker Road SW 4.0 6

Box 934, Route 2, Barker Road USU 0.8 50 Cemetery Road USW 2.0 20 Box 513, Neer City Road USU 2.8 6

Box 806, Route 4, Walker Road i

I WSU 3.5 2

Box 809, Route 4, Camel Road l

WSN I

3. 5 1

Box 816, Route 4, Walker Road I

t.'S U 6

3. 5 2

Box 819, Route 4, Walker Road W

2.2 1

3ox 796, Route 2, Brownlee Road I

(a):

Measured from Trojan Containment 2-18

TABLE 2.4 (Cont. )

!! EAT AN1!!ALS - CATTLE Uithin Five !!iles of Trojan - f:ovember 1979 (a)itadial (a) Radial Number Direction Mileage of Cattle Address U

2.5 50 Box 799, Route 4, Brownlee Road U

3. 0 6

Box 4359, Beaver Springs Road U

3. 0 6

Box 4374, Beaver Springs Road U

3.0 3

Box 4378, Beaver Springs Road 17 3.5 6

Anderson Road U

3.7 3

Girt Road W

4.0 6

End of Hutchinson Road W

5.0 2

Fern Hill Road (at 5-mile radius) k0a!

1.6 50 1:eer City Road L03?

1.8 1

Box 4392, Route 4, Neer City Road kna

3. 5 6

Box 675, DeBast Road ten?

3.7 8

Hutchinson Road and Beaver Springs Road 00 3:

4.0 8

DeBast Road kca?

4.2 6

Box 734, Thistle 11111 Road ION 4.2 2

Box 725, Beaver Springs Road 10a?

4.5 6

Hirtzel Road UN'?

4.5 3

Box 3221, Fern Hill Road kaa!

4. 5 1

Box 3401, Fern 11111 Road h'NU 4.7 10 Box 3413, Fern Hill Road IN 4.5 1

Box 1429, Fern Hill Road t0a?

1.5 22 U. S. liighwar 30 t0:U

2. 0 1

U. S. Highway 30 N

4.0 1

Rose Valley Road N

5. 0 1

Box 215, Paxton Road I;NE 2.3 5

Box 245, Hilltop Road t0:E 4.0 30 Box 1210, Rose Valley Road (a):

Measured froa Trojan Containnent 2-19

TABLE 2.4 (Cont.)

MEAT ANIMALS - CATTLE Within Five Miles of Trojan - November 1979 (a)g,.ial (a) Radial Number Direction Mileage of Cattle Address NNE 4.0 15 Box 402, Uitherbe Road NNE 4.0 3

Rose Valley Road and Maderia Drive NNE 4.0' 1

Box 507, North Maple Hill Road NNE 4.2 30 Box 735, North Maple Hill Road NNE 4.3 50 Valley View Farn, North Maple Hill Road NE 1.8 4

Box 243, Kingsbury Road NE

1. 8 2

Box 315, Kingsbury Road NE

1. 8 3

Box 408, Kingsbury Road NE

2. 0 6

Box 428, Mt. Pleasant Road NE 2.3 150 Box 3649, !bples Road NE 3.5 2

Box 115, Cornwell Road NE 3.8 20 Box 435, Fish Pond Road NE 4.0 10 Box 125, Duncan Road NE 4.0 14 Box 128, Duncan Road NE

4. 2 5

Eox 142, Duncan Spur Road NE 4.3 6

Box 335, Cunningham Road NE 4.3 1

Box 431, Cunningham Road 12 4.5 4

Box 109, Cunningham Road ENE 3.0 50 3ox 1902, Mt. P]easant Road ENE 4.0 6

Box 2307, Mt. Pleasant Road ENE 5.0 12 Box 1610, Kool Road E

1.7 250 Carrols Avenue and Kalana River Road E

2..

2 Box lill, Ka?.aca River Road E

2. 8 4

Box 136, Spencer Creek Road E

2.9 10 Bc 155, Spencer Creek Road I

(a):

Measured from Tr)jan Containment 2-20

TABLE 2.4 (Cont.)

MEAT ANIMALS - CATTLE Uithin Five Miles of Trojan - I;ovember 1979 (a) Radial (a) Radial umber Direction Mileace of Cattle Address E

3.0 8

Box 317, Bates Road ESE 3.0 8

Box 901, Spencer Creek Road ESE 4.5 4

Box 150, Rogers Road ESE 4.7 1

Box 1917, China Garden Road SE 4.7 12 Box 916, Cloverdale Road SE 4.7 1

Box 1024, Cloverdale Road SE 4.7 3

Box 133, Vincient Road SE 4.7 4

Box 6944, U. S. Highway 99 SE 4.7 12 Box 5630, Meeker Road SE 4.7 14 Box 202, Gore Road SE 4.7 1

Box 205, Core Road SE 5.0 2

U. S. Highway 99 and Interstate 5 l

(a):

Measured from Trojan Containnent 2-21

TABLE 2.5 MEAT ANIMA 1.S - SilEEP Within Five Miles of Trojan - November 1979 (a) Radial (a) Radial Number Direction Mileage of Sheen Address SW 1.5 30 Bishop Road and Near City Road WSW 3.5 20 Box 809, Route 4, Camel Road E

2.3 20 Box 1111, Kalaca River Road SE 4.7 1

Box 150, Gore Road i

l (a): Measured frca Trojan Containment 2-22

TABLE 2.6 VEGETABLE GARDENS Within Five Miles of Trojan - November 1979 (a) Radial (a) Radial Direction Mileace Address S

1.3 Neer Road and U. S. Highway 30 S

2.0 Nicolai Road and U. S. Highway 30 S

3.0 Nicolai Road and U. S. Highway 30 S

4.5 Highland Road SSW

1. 6 Bishop Road SSW

3. 0 Nick Thomas Road SSW 3.0 Nicolai Road SSW 3.5 Fairview Road and Nicolai Road SSW 4.0 Fairview Road SSW 4.5 Orr Road SW l.5 Bishop Road and Meer City Road SW l.6 Bishop Road SW 2.0 Thomas Road SW

2. 6 Nick Thomas Road SW 3.0 Beaver Homes Road SW 3.5 Beaver Homes Road SW 3.5 Box 821, Route 4, Walker Road SW 4.0 Box 823, Route 4, Walker Road SW 4.0 Barker Road SW 4.5 Gregory Road USW 0.8 Cementary Road WSW l.7 Box 571, Neer City Road WSU 2.0 Box 513, Neer City Road WSU 2.0 Box 576, Neer City Road WSW 2.8 Box 805, Route 4, Walker Road (a):

Measured from Trojan Containment 2-23

TABLE 2.6(Cont. )

VECETABLE CARDENS Within Five Miles of Irojan - November 1979 (a) Radial (a) Radial Direction Mileage Address USU 3.5 Box 809, Route 4, Camel Road WSil

3. 5 Box 811, Route 4, llalker Road WSW 3.5 Box 819, Route 4, Walker Road W

1.6 Box 580, Neer City Road W

2.2 Box 796, Route 2, Brownlee Road W

2.2 Box 793, Route 2, White Road W

2. 5 Box 799, Route 4, Brovnlee Road W

3.0 Box 789, Beaver Springs Road W

3. 7 Box 4355, IIutchenson Road inaJ 1.6 Neer City Road WNW 1.8 Box 4392, Route 4, Neer City Road taal

1. 8 Box 4393, Route 4, Neer City Road inaJ 2.0 Box 434, Route 4, Neer City Road taal 4.0

'aBast Road taal 4.2 Beaver Springs Road and Fern Hill Road Ica?

4.2 Box 729, Thistle Hill Road WNW 4.2 Box 733, Thistle Hill Road WNW 4.5 Box 3221, Fern Hill Road WNU 4.5 Box 3401, Fern Hill Road Ical 4.5 Box 138, Doan Road NW 1.0 Little Jack Falls Road NW 3.5 Neer City Road NU 3.8 DeBast Road NW 4.0 Tom Wycof f in Rainier, Oregon NW 4.5 Box 1434, Fern Hill Road (a):

!!easured from Trojan Containment 2-24

TABLE 2.6 (Cont. )

VEGETABLE CARDENS Uithin Five Miles of Trojan - Novenber 1979 (a) Radial (a) Radial Direction Mileane Address NW 4.5 Box 4297, Fern Hill Road NNU 0.6 School Road in Pres,cott, Oreg on NNU 0.7 Prescott Road, Monitoring Location IJ NNN 1.5 U. S. Highway 30 NNU 2.0 U. S. Highway 30 N

4.0 Rose V' alley Road N

5.0 Box 217, Paxton Road NNE 2.3 Box 101, Hilltop Road NNE 2.3 Box 111, Hilltop Road UNE 2.3 Box 151, Hilltop Road NNE 2.3 Box 225, Hilltop Road NNE 2.5 Box 1106, Fish Pond Road NNE 3.5 Norvood Road NNE

3. 7 Box 314, South Maple Hill Road NNE 3.7 box 504, South Maple Hill Road NNE 4.0 Box 402, Witherbe Road UNE 4.0 Rose Valley Road and Maderia Drive NNE 4.0 Box 205, North Maple Hill Road NNE 4.0 Eox 507, North Maple Hill Road NNE 4.2 Box 735, North Maple Hill Road UNE 4.2 Box 241, Fish Pond Road NNE 4.2 Box 240, Fish Pond Road NNE 4.2 Box 1124, Rose Valley Road NNE 4.3 Box 1325, Rose Valley Road NNE 4.3 Box 214, Fish Pond Road (a): Measured from Trojan Containment 2-25

TABLE 2.6(Cont. )

VEGETABLE GARDENS Uithin Five Miles of Trojan - November 1979 (a) Radial (a) Radial Direction Mileage Address UNE 4.5 Meadow Drive NNE 4.5 Pare Road and McMenomy Road UNE 4.5 Box 111, Fish Pond Road UNE 4.6 Box 1421, Rose Valley Road NNE 4.6 Box 1433, Rose Valley Road NNE 5.0 Box 1602, Rose Valley Road NE 1.8 Box 243, Kingsbury Road NE

1. 8 Box 255, Kingsbury Road NE

1. 8 Box 315, Kingsbury Road NE

2. 0 Box 240, Mt. Pleasant Road NE 2.0 Box 303, Mt. Pleasant Road NE

2. 0 Box 424, Mt. Pleasant Road NE 2.0 Box 657, Mt. Pleasant Road NE 2.3 Box 3120, !Mples Road NE

2. 3 Box 121, Carrols Avenue NE

2. 3 Box 128, Carrols Avenue NE

2. 3 Box 130, Carrols Avenue NE 3.0 Box 907, Fish Pond Road NE 3.3 Box 750, Fish Pond Road NE

3. 5 Box 113, Cornwell Road NE

3. 5 Box 115, Cornwell Road NE

3. 8 Box 244, Cornwell Road NE

3. 8 Box 435, Fish Pond Road NE

4. 3 Box 226, Duncan Road NE 4.3 Box 303, Cunninghan Road NE 4.3 Box 335, Cunninghan Road 2-26 (a):

Measured f rom Trojan Containnent

TABLE 2.6(Cont. )

VECETABLE GARDENS Uithin Five !!iles of Trojan - November 1979 (3) Radial (a) Radial Lirection

!!ilea e Address

!!E 4.3 Box 410, Cunninghan Rc 3d ENE

2. 5 Box 1877, !!t. Pleasant Road ENE 3.0 Box 150, Olsen Road ENE 3.0 Box 305, Olsen Road ENE 3.5 Box 803, Kool Road FNE 3.5 Box 822, Kool Road ENE 4.0 Box 1039, Kool Road ENE 4.0 Box 2735, !!t. Pleasant Road ENE 4.3 Box 2435, Mt. Pleasant Road ENE 4.5 Box 1536, Kool Road E

1.5 Mertz Road E

1.7 Carrols Avenue and Kalana River Road E

2.2 Box 1111, Kalana River Road E

2. 3 Box 275, La\\ erne Road E

2.8 Box 110, Spencer Creek Road E

2. 8 Box 136, Spencer Creek Road E

2. 9 Box 155, Spencer Creek Road E

3. 0 Box 296, Bates Road ESE 3.0 Box 394, Spencer Creek Road ESE 3.0 Bo, 720, Spencer Creek Road ESE 3.0 Box 318, Cenentary Road ESE 3.0 N. E.

5th Street, Kalana, Washing ton SE 4.5 Box 5415, Meeker Road SE 4.5 Box 5430, Meeker Road SE 4.7 China Garden Road SE 4.7 Box 201, Gore Road SE 4.7 Box 231, Gore Road (a):

!!easured f rnn Trojan Containment 2-27

TABLE 2.7 ORCRARDS Within Five Miles of Trojan - November 1979 (a) Radial (a) Radial Direction Mileage Address SW 0.7 Bbnitoring Site IC SW 4.0 Box 829, Route 4, Walker Road SW 4.0 Box 934, Route 2, Barker Road WSW 0.8 Cecentary Road WSW 3.5 Box 820, Route 4, Walker Road NNW 0.6 Monitoring Site II NNE 4.0 Witherbe Road NE 2.0 Box 424, Mt. Pleasant Road NE

2. 0 Box 336, Mt. Pleasant Road NE 2.0 Box 240, Mt. Pleasant Road NE

2. 3 Box 121, Carrols Avenue NE 4.0 Box 380, Fish Pond Road NE 4.3 Box 403, Duncan Road E

2.0 Box 240, Kalana River Road (a):

Measured f rom Trojan Containment LS/Alf84.2781 2-28

SECTION 3.0 ANALYSIS PROGRMI e

3-0

3.0 ANALYTICAL PROCEDURES AND COUNTING METHODS Samples received at the contractor's laboratory are analyzed for the various radioactive components by standard radiochemical methods.

These methods are equal to, and in most cases identical with, those of the U. S. DOE (HASL Procedures Manual, RASL-300, Health and Safety Laboratory, U. S. Atomic Energy Commission, 376 Hudson Street, N.

Y., N. Y. 10014) or those of the Federal E. P. A.

Analyses of indivdual sample types, general methods, and routine analytical sensitivities are discussed below. Detailed procedures may be found in the Eberline Instrument Corporation-Midwest Facility Analytical Procedures Manual.

The analytical program and sensitivity requirements are given in Table 3.1.

3.1 Air Particulates Gross beta concentrations are measured with low background gas flow (propor-tional and/or Geiger) counting systems with anti-coincidence background 3

suppression. The routine detection limit (LLD) is.002 pCi/m for gross beta or gross alpha based on 300 m / week, but in practice, the ambient air concen-3 tration is seldom this low for beta, and is usually telow this level for alpha.

Camma isotopic analyses are performed 'cith a GeLi detector with a routine 2 for most gamma emitters for single filters detection limit of about 0.05 pCi/m and about 0.01 pCi/m 3 for monthly composite samples.

3.2 Air Radiofodine Charcoal cartridges are analyzed for I-131 using a 4" diameter x 4" thick sodium iodide (thallium activated) detector.

The routine LL3 is 0.1 pCi/m.3 Maximum sensitivity by this method under typical conditions is about 0.02 pCi/m.

3 3.3 Rainf all, Surf ace b'ater, k' ell Uater Gross beta analysis of water samples is performed by evaporation of a measured aliquot of the sample, digestion, planchetting of the processed sample and radiometric assay by low level beta counting, with a LLD of 0.5 pCi/1.

Tritium analysis is performed on all water samples to the required LLD of 1000 pCiil by liquid scintillation counting.

Lower detectica limits, to 10 pCi/1, can be provided by isotopic enrichment, if required.

Gamma isotopic analyses is performed using a GeLi detector with a routine LLD of 10 pCi/l for most gamma emitters.

3-1

TABLE 3.1 TECHNICAL SPECIFICATION REQUIRED LIMITS AND REPORTED DETECTION LEVELS **

~

Required Analysis Technical Spe_cification Required _ Limits Reported Detection Levels 0.002 pCi/m' Air Particulate-gross beta 0.002 pCi/m 3 0.002 pCi/m 3 Air particulate-gross' alpha 0.002 pCi/m 3 Air Particulate-ganma 3cau 0.3 pCi/m /nuclide 0.3 pCi/m /nuclide 3

3 0.1 pCi/m3 Air Radiciodine 0.1 pCi/m 3 Precipitation-gross beta 0.5 pCi/ liter 0.5 pCi/ liter Precipitation-tritium 1000 pCi/ liter 1030 pCi/ liter Precipitation-gamma scan 25 pCi/ liter /nuclide 10 pCi/ liter /nuclide l40 (Ba 25 pCi/1)

Terrestrial Soil-strontium 89 00 0.1 pC1/g(dry) 0.01 pCi/g(dry)

Terrestrial Soil-ganma scan 0.1 pC1/g/nuclide(dry) 0.1 pCi/g/nuclide(dry)

Terrestrial Vegetation-strontium 89-90 5.0 pCi/Kg(wet) 0.04 pCi/g(dry)*

1 nci/Kg/nuclide(wet)

Terrestrial Vegetation-gamma scan 50 pCi/Kg/nuclide(wet) 0.4 pCi/g(dry)*

50 pCi/Kg/nuclide(wet)

Terrestrial Animal-strontium 89-90 5 pCi/Kg(wet)

.005 pCi/g(wet)

Terrestrial Animal-gamma scan 50 pCI/Kg/nuclide(wet)

.05 pCi/g/nuclide(wet)

Milk-iodine-131 0.5 pCi/ liter 0.2 pCi/ liter Milk-strontium 89-90 1.0 pCi/ liter 1.0 pCi/ liter y

Milk-gamna scan 50 pCi/ liter /nuclide 50 pCi/ liter /nuclide l40 (Ba 25 pCi/1)

N Surface Water-gross beta 0.5 pCi/ liter 0.5 pCi/ liter Surface Water-tritium 1000 pCi/ liter 1000 pCi/ liter 25 pCi/ liter /nuclide 25 pCi/ liter /nuclide Surface Water-gamma scan 140 (Ba 25 pCi/1)

Well Water-gross beta 0.5 pCi/ liter 0.5 pCi/ liter Well Water-tritium 1000 pCi/ liter 1000 pCi/ liter Well Water-gamma scan 25 pCi/ liter /nuclide 25 pCi/ liter /nuclide Bottom Sediment-ganma scan 0.1 DCi/g/nuclide(dry) 0.1 pCi/g/nuclide(dry)

Shoreline Soil-gamma scan 0.1 pCi/g/nuclide(dry) 0.1 pC1/g/nuclide(dry)

Aquatic Vegetation-strontium-89-90 5 pCi/Kg(wet) 0.04 pCi/g(dry)*

5 pCi/Kg(wet)

Aquatic Vegetation-ganna scan 100 pCi/Kg-nuclide(wet) 0.9 pCi/g(dry)*

0.1 pCi/g(wet)

Aquatic Animal-strontium 89-90 5 pCi/Kg(wet) 0.005 pCi/g(wet)

Aquatic Animal-gamma acan 100 pCi/Kg/nuclide(wet) 0.1 pCi/g/nuclide(wet)

Direct Radiation 1.25 mR/ quarter change 1.25 mR/ quarter change

It is assumed that 90 percent of gross weight is water

3.4 Soil or Sediment Samples are oven dried and results reported based on dry weight. Gamma emitters are measured with a GeLi detector with an LLD as specified.

3.5 Vegetation, Meat, Poultry, Fish, Food Crops, etc.

Measured amounts of these types of samples are analyzed for gamma emitters by gamma spectrometry with counting times adjusted to provide LLDs at least as sensitive as those required in Table II for the appropriate samples types.

3.6 Milk The determination of I-131 in fresh milk is based on anion exchange removal of the I-131 followed by radiochemical purification and low background beta counting. The LLD is 0.2 pC1/1 or better and the overall accuracy at 0.5 pC1/1 is 25% or better at the 95% confidence level.

Gamma emitters in milk are measured with a GeLi detector.

3.7 Ambient Radiation Measurements The responsibility for ambient radiation dose measurements resides with Portland General Electric Company.

A total of sixty-six field locations were monitored on frequencies of either monthly (three locations), quarter yearly (all 66 locations), or yearly (22 locations). The field dosimeters used thermoluminescent radiation detection materials with each dosimeter having five separate chips or measurement devices. The monthly and quarterly field dosimeters used CaF :Dy (TLD-200) chips and the yearly field dosimeters 2

used 7Li enriched LiF (TLD-700).

For each field dosimeter, the five chips were packed in plastic foam and sealed in plastic containers. Tu minimize radf_ation energy dependence for the TLD-200 chips, the monthly and quarterly field dosimeters were shieldec with a two-element filter of ten mil tantalum and two mil lead as described in the report by Denham, et.al. (6).

Calibration of the field dosimeters was done with a wooden jig that pro"ided 137 a reproducible standard geometry and a 2.5 mci Cs source traceable to the U.S. National Bureau of Standards.

Calibration dosimeters were prepared for each readout of the field dosimeters. The dosimeter readout was done with an Eberline Model TLR-5 reader.

3.8 Analytical Detection Limits and Count Rate Errors In environmental radiological analyses the dominant known uncertainty is usually the sample count rate.

Error terms given in this report are based on this factor since all other analytical uncertainties are relatively small.

Uncertainties are calculated by standard methods (see Ref. 4), and are reported at the 95% confidence level (2c). The lower limit of detection (LLD) is defined here as "that concentration that is three standard deviations above 3-3

the average concentration in a blank sample." Analytical data for sampics for which concentrations are less than or equal to the LLD are preceded by the symbol "<".

3.9

~

Quality Control Quality Assurance is an integral part of management of the analytical program.

The Quality Assurance Program for radiological analysis is defined by Eberline Company, Division, and Facility manuals.

Approximately fifteen percent of the analyses performed by the laboratory are for quality control purposes.

The 1rboratory participates in EPA, IAEA, NRC, several states', and other in' trcalibration programs.

Reports of all quality control analyses are reported monthly to the owner.

Re-sults of EPA intercallbrations (for which "known" data are available) are given in Tabic 3.2.

Table 3.3 presents the results from participation.in the USDOE Quality Assessment Program.

In those cases where discrepant values are obtained, an investigation is undertaken to determine the cause, and corrective action as required.

REFERENCES FOR ANALYTICAL PROCEDURES 1.

American Pulbic Health Association, American Water Works Association and Water Pollution Control Federation (1971):

Standard Methods for the Examination of Water and Wastewater. Thirteenth edition, pp. 583-632; 12th edition, pp. 323-35?. APHA, 1740 Broadway, New York, NY 10019.

2.

Department of Health, Education and Welfare, Public Health Service:

Radioassay Procedures for Environmental Samples. National Center for Radiological Health (1967)

Sec. 1, pp.36-115.

3.

Atomic Energy Commission:

Reculatory Guide. 4.3 (September 1973) 4.

Health and Safety Laboratory, Atomic Energy Commission: RASL Procedures Manual (now known as EML of the Department of Energy). HASL, 376 Hudson Street, New York, NY 10014.

5.

National Environmental Research Center, Environmental Protection Agency; Handbook of Radiochemical Analytical Methods. Progran Element 1HA 325.

Office of Research and Development, Las Vegas, NV 89114.

6.

Denham, D.

H.,

R. L. Kathren, and J. P. Corley, "A CaF.Dy Thermolumin-2 escent Dosimeter for Eivironmental Monitoring", USAEC Report BNUL-SA-4191 (1972).

3-4

Table 3.2 EPA INTERCOM?ARIS0N PISLTLTS 1979 Control MWF Sample Agency Limits Measured Type Analysis Value (3c,n=1) 220 error Units Air Filter Gross a 5

15 31 pCi/ filter Air Filter Gross B 18 15 20t2 pC1/ filter Air Filter Sr-90 6

4.5 722 pCi/ filter Air Filter Cs-137 6

15 91 pCi/ filter Water Gross a 6

15 7!2 pCi/l Water Gross a 10 15 13tl pCi/l Water-Cross 3 16 15 14!2 pCi/1 Water Gross B 16 15 18!3 pC1/1 Water H-3 1280 993 1230!300 pCi/l Water H-3 2270 1047 23002200 pCi/1 Water Sr-89 14 15 9!1 pCi/l Water Sr-90 6

4.5 6!1 pCi/1 Water I-131 40 12 43!4 pCi/l air Filter Cross a 14 15 13!1 pCi/ filter Air Filter Gross S 63 15 72!7 pCi/ filter Air Filter Sr-90 21 4.5 2112 pCi/ filter Air Filter Cs-137 21 15 19!2 pCi/ filter Water H-3 1540 1010 1400!400 pCi/1 War 1r Gross a 9

15 I!1 pCi/1 Water Cross S 12 15 52 pC1/1 Mil.-

Sr-89 42 5

24!15 pC1/1 Milk Sr-90 54 3

5426 pCi/l Milk 1-131 96 5

107:17 pCi/l IC 'i Cs-137 154 8

150!27 pCi/1 Milk Ba-140 0

0

<10 pCi/l Milk Sr-89 23 5

34!7 pCi/l Milk Sr-90 30 1.5 31!5 pCi/l Water Cross a 18 5

1824 pCi/l Water Cross B 22 5

27!6 pCi/l Air Filtar Gtoss a 9

15 10t1 pCi/ filter Air Fil'.er Gross 3 30 15 37!4 pCi/ filter Air Filter Sr-90 10 5

11!1 pCi/ filter Air Filter Cs-137 10 15 11!1 pCi/ filter Milk Sr-89 5

15

<10 pC1/1 Milk Sr-90 11 5

1125 pCi/1 Milk I-131 17 15 53 pCi/l Milk Cs-137 12 15 17!3 pCi/1 Milk Ba-140 0

0

<30 pC1/1 Milk K-40 1630 250 2300!300 pCi/l 3-5

Table 3.3 USDOE QUALITY ASSESSMENT PROCPJLM 1979 Sample Measured Tyne Nuclide Known,__

!2 error Units Air Co-57 0.116 E+03 0.13110.013 E+03 pCi/ filter Air Sr-90 0.135 E+02 0.15520.025 E+02 pCi/ filter Air Ru-106 0.174 E+03 0.167!0.020 E+03 pCi/ filter Air Sb-125 0.749 E+03 0.823!0.082 E+03 pCi/ filter Air Cs-134 0.985 E+02 0.94710.095 E+02 pCi/ filter Air Ca-45 0.134 E+03 0.230!O.023 E+03 pCi/ filter Soil K-40 0.216 E+02 0.235t0.024 E+02 pCi/g Soil Sr-90 0.200 E+00 0.20010.080 E+00 pCi/g Soil Cs-137 0.240 E+00 0.26610.027 E+00 pCi/g Tissue K-40 0.840 E+01 0.90010.090 E+01 pCi/g Tissue Sr-90 0.440 E-02

$0.200 E+00 pCi/g Tissue Cs-137 0.230 E-01 0.12020.030 E-01 pCi/g Vegetation K-40 0.225 E+03 0.22010.022 E+03 pCi/g Vegetation Sr-90 0.573 E+01 0.59310.059 E+01 pCi/g Vegetation Cs-137 0.256 E+00 0.28010.030 E+00 pCi/g Water U-3 0.124 E+02 0.13010.013 E+02 pCi/ml Water Na-22 0.843 E+00 0.90710.091 E+00 pCi/ml Water Mn-54 0.737 E+00 0.800!0.096 E+00 pCi/ml Water Co-60 0.871 E+00 0.97020.097 E+00 pCi/ml Water Cs-137 0.980 E+00 0.11720.012 E+01 pCi/ml Air Be-7 0.147 E+04 0.14010.020 E+04 pCi/ filter Air Ca-45 0.115 E+03 0.133!0.030 E+03*

pCi/ filter Air Mn-54 0.540 E+02 0.490 0.070 E+02 pCi/ filter Air Co-60 0.135 E+03 0.150t0.030 E+03 pCi/ filter Air Sr-90 0.101 E+02 0.107 0.050 E+02 pCi/ filter Air Zr-95 0.252 E+03 0.210!0.030 E+03 pCi/ filter Air Sb-125 0.146 E+04 0.16010.030 E+04 pCi/ filter Air Cs-137 0.130 E+03 0.12510.014 E+03 pCi/ filter Air Ce-144 0.294 E+04 0.24010.041 E+04 pCi/ filter Air K-40 0.793 E+01 1.267!0.307 E+01 pCi/ filter Soil Cc-137 0.225 E-01 0.183 0.038 E-01 pCi/g Soil U

0.188 E+01 0.42010.150 E 00 pCi/g vegetation K-40 0.215 E+03 0.30010.030 E+03 pCi/g Vegetation Sr-90 0.337 E+01 0.25020.0'+5 E+01 pCi/g Vegetation Cs-137 0.270 E 00 0.31710.070 E 00 pCi/g

correction for a calculation error was made.

3-6

Table 3.3 USDOE QUALITY ASSESSMENT PROGRAM-continued Sam;1e Measured Type Nuclide Known

!2 error Units Water H-3 0.134 E+02 0.13010.018 E+02 pC1/ml Water Na-22 0.153 E+01 0.13010.020 E+01 pC1/ml Water Co-57 0.676 E 00 0.113t0.020 E+01 pCi/ml Water Co-60 0.124 E+01 0.120 0.015 E+01 pCi/ml Water Sr-89 0.342 E 00 0.34010.030 E 00 pCi/ml Water Cs-137 0.124 E+01 0.10310.020 E+01 pCi/ml Water U

0.356 E-01 0.400:0.141 E-01 pCi/ml Air Co-58 0.279 E+03 0.18010.031 E+03 pCi/ filter Air Sr-89 0.473 E+02 0.330:0.076 E+02 pCi/ filter Air Sr-90 0.164 E+02 0.21020.042 E+02 pC1/ filter Air Ra-106 0.500 E+03 0.57010.060 E+03 pCi/ filter Air Cs-134 0.288 E+03 0.25510.037 E+03 pCi/ filter Air Cs-137 0.347 E+03 0.275:0.042 E+03 pC1/ filter Soil K-40 0.245 E+01 0.46010.092 E+01 pCi/g Soil Co-60 0.668 E 00 0.50010.283 E 00 pCi/g Soil Sr-90 0.251 E+01 0.12020.028 E+01 pCi/g Soil Cs-137 0.608 E+02 0.390!0.255 E+02 pC1/g Tissue Sr-90 0.233 E+01 0.258t0.030 E+01 pCi/g Water H-3 0.304 E+02 0.293!0.029 E+02 pCi/ml Water Ca-45 0.940 E 00 0.86720.116 E 00 pCi/ml Uater 2n-65 0.232 E+01 0.22010.022 E+01 pCi/ml Water Sr-90 0.135 E 00 0.19010.035 E 00 pCi/ml Water Cs-134 0.113 E+01 0.120 0.012 E+01 pC1/ml Water Cs-137 0.152 E+01 0.155!0.016 E+0L pCi/ml 3-7

SECTIO:;

'.0 RESULTS AND DISCUSSION m

4-0

4.1 SAMPLES FROM THE TERRESTRIAL E:.TIRONMENT 4.1.1 Air Particulates and Airborne I-131 Gross Beta concentrations for air particulates remained generally at low levels throughout the year. Average concentrations for various time periods are compared below.

pCi/m3 Preoper-ational 1976 1977 1978 1979 Trojan

.02!.02

.02!.06

.03!.04

.02!.02

.01!.01 (On Site)

Oregon

.02!.02

.03!.08

.04!.04

.02t.01

.01!.01 (Off Site)

Washington

.03t.02

.02!.04

.05!.02

.02!.02

.01!.01 (Off Site)

The decrease ( concentrations from 1977 to 1979 are due mainly to reduction in the amount cf falleut from recent atmospheric explosions.

Gross alpha concen rTricas were at or below the detection limit of

.002 pC1/m 3 for all amples, and airborne I-131 collected in charcoal cartridges was below the detection limit of 0.1 pCi/m3 (at collection) in all cases.

Data for these samples are listed in Section 5.0, pages 5-2 through 5-11.

4.1.2 Terrestrial Animals Samples of various organs from beef cattle were collected and analyzed for gross beta, radiostrontium, and gamma emitters. Two wild rabbits and an opossum vere analyzed whole for the same analyses. The only radioactivity detected in the samples originated from either fallout or natural sources.

Data are listed in Section 5.0, page 5-12.

4.1.3 Food Crops Samples of food crops were collected from one locatica and analyzed for gross beta, radiostrontium, and gamma emitters. Strontium-90 was detected at low concentrations in many samples and is attributed to worldwide fall-out.

Gross beta activity was detected as is to be expected and is due primarily to natural radioactivity. Other radioactivity was either of natural origin, or below the sensitivity requirements of the program.

Data are presented in Section 5.0, page 5-13.

4-1

4.1.4 Terrestrial Vegetation Samples of grass were taken at six locations and analyzed for gross beta, radiostrontium, and gamma emitters.

The radioactivity observed in these samples was typical in type and concentrations to what is to be expected from natural and fallout origins. No activity which is attributable to operation of the Trojan Nuclear Station was detected.

Data are presented in Section 5.0 on page 5-13.

4.1.5 Well Unter Well water samples were collected quarterly from five locations.

Low levels of gross beta radioactivity which are to be expected from natural sources, and traces of tritium in a few samples were detected.

Gamma emitters were below the sensitivity requirements of the program.

Data are presented in Section 5.0 on page 5-14.

4.1.6 Milk Milk sampics were collected on a monthly schedule from four locations.

Samples were analyzed for I-131, radiostrontium, and gamma emitters.

Most samples contained Sr-90 which is attributable to long

.rm falleut.

No sampics contained I-131, Sr-90, or gamma emitters (othe. tian naturally occurring nuclides) at or above program detection sensitisiti's. Data are presented in Section 5.0 on page s 5-15 through 5-17.

4.1.7 Soil Soil samples were collected from seven locations and analyzed for gross beta, gamma istopic, and radiostrentium concentrations.

Data indicate the presence of no radioactivity attributable to the operation of Trojan.

Traces of Cs-137 and Sr-90 were found in many samples and Sr-89 was found in samples from two locations. There were no significant differences between stations and the presence of these nuclides is attributed to worldwide fallout from atmospheric nuclear tests. Data are presented in Section 5.0 on page 5-18.

4.1. 8 Radionuclides in Precipitation Monthly sampics of precipitation were collected from three locations and analyzed for gross beta and tritium content.

Samples with a gross beta concentration of greater than 10 pCi/1 were analyzed for gamma emitters by gamma spectrometry (Geli).

During the period, eight samples were analyzed for gamma emitters which were below the detection limits of the program in all samples analyzed.

Although numerical differences in gross beta concentrations were observed in the samples, there were no significant differences between stations based on the gamma data which are much more useful for comparison than are the beta data.

It should be noted that for these samples as for the air particulates, the use of different nuclides as references for gross beta measurements may produce apparent differences between the data in this report and those provided by other contractors.

Since gross beta analyses and " survey" data these differences are not significant. Data are presented in Section 5.0 on page 5-19.

4-2

4.1.9 Ambient Radiation Levels Mean ambient dose rates, in units of mR/ day, were determined from the dosimeter data.

Presented on page 5-20 are these ambient dose rates f rom the monthly, quarterly, and annual dosimeters for twenty-two measurement locations that have been followed since before Trojan Plant began operations.

There is good correlation between the data obtained with the monthly, quarterly, and annual dosimeters. Also, the ambient dose rates do not significantly differ from the value of about 0.13 mR/ day measured in previous years.

For example, the means and standard deviations for the results presented on page 5-20 were calculated to be 0.12io.02 mP.' day for monthly dosimeters, 0.13t0.03 mR/ day for quarterly dosimeters and 0.1310.02 mR/ day for the annual dosimeters. Using the quarterly data, the means and standard deviations were calculat.ed for the three geographical groups in 1979, the mean daily dose rates were 0.11t0.02 mR/ day for the eight Trojan on-site locations, 0.14 0.02 mR/ day for the Oregon locations, and 0.1310.03 mR/ day for the Washington locations which agrees with the similar data from 1978 and before.

During the fourth quarter of 1979, forty-four ambient radiation measurement stations were added around the Trojan Plant. Thes was done at the direction of the U.S. Nuclear Regulatory Commission in order to better characterize the individual and population exposure as discussed in Criterion 64 of 10 CFR Part 50, Appendix A. The table on page 5-21 presents the measurement data for these forty-four new measurement locations (See Section 2 for dosimeter locations). The measurement results from these new locations were not significantly different from those determined from the twenty-two previous locations.

For example, for these forty-four locations, the calculated means and standard deviations were 0.12 0.02 mR/ day for all new locations, 0.llt0.02 for new Trojan on-site location (10), 0.13t0.02 for new Oregon locations (10), and 0.1210.02 for new Washington locations (16).

The data on page 5-21 was analyzed for differences in the four major compass directions from the Trojan Plan and no significant differences were found.

4-3

4.2 SAMPLES FROM THE AQUATIC ENVIRONMENT 4.2.1 Surface Water Sampics Surface water sampics were collected from locations nea. the Trojan site and include samples from the Columbia River, ponds, and municipal water supplies. Analyses were made for gross beta activity, tritium, and gamma emitters. Neither tritium nor gamma emitters were detected at program sensitivities in any of the samples collected during the period. Cross beta concentrations were at low, but generally detectable levels and ranged from 0.7 to 4.1 pCi/l with Cs-137 as the reference nuclide. Data are given in Section 5.0 on pages 5-22 through 5-24.

4.2.2 Sediment and Shoreline Soil Samples Sediment samples were colle:ted from lakes and streams in the Trojan area as well as from the Columbia River. Naturally occurring radionuclides and fallout radioactivity are present in these samples as well as soil samples collected from the shore of the Columbia River.

Samples from the river may also contain traces fo longer-lived activity from operations at the Hanfstd Project.

One sample of sediment contained low, but detectable concentrations of Co-60.

It is possible that this radioactivity was as a result of Trojan operations.

Data are presented in Section 5.0 on page 5-25.

4.2.3 Acuatic Plants Aquatic plants were sampled semiannually from the Columbia River and ponds in the vicinity of the Trojan Plant and analyzed for gross beta, Sr-89/90, and gamma emitter concentrations.

Sr-90 is due to both recent and long term worldwide f allout and is not dif ferent from values for previous years.

Detectable concentrations of Co-60, Co-57, and Mn-54 were found in samples collected during the second half of the year.

It is possible that htese radioactivities were as a result of Trojan plant operations, however, the measured concentrations are lower than the design objective values in the Environmental Technical Specifications for edible leafy vegetables such as Icttuce.

Data are presented in Section 5.0 on page 5-26.

4.2.4 Fish Fish were collected several times a year and muscle, viscera, and bone were analyzed separately for gross beta concentration, Sr-89 and 90, and gamma emitters. No radioactivity attributable to the Trojan plant was detected in any of the samples analyzed. The only non-naturally occurr ng radionuclide detected was Sr-90 which is due to longterm worldwide fa1 1out.

As is to be expected, the highest concentrations of this nuclide were found in bone.

Data are presented in Section 5.0 on page 5-27.

4-4

4.2.5 Special Sample Collections Due to a small primary to secondary leak (about 100 gallons per day which is one-fif th the Trojan Technical Sp cifications limit) within the Trojan plant during late September and early October 1979, several special aquatic samples (surface water, sediment, fish, and aquatic vegetation) were collected from the Recreation Lake, which receives effluents from the turbine building sumps. These special samples were taken from locations IDA and IDB which are in the opposite end of the Recreation Lake (north end) from the normal sampling location, ID (south end).

Since the plant was not operating from mid-October through December 28, 1979, the special sample collections from the Recreation Lake were dis-continued by December 11, 1979. The steam generators were repaired during this plant outage.

The data for the special surface water samples from locations IDA and IDB are presented on page 5-28.

The surface water samples from location IDA showed daily tritium concentrations in the samples taken on October 4, 9, and 17, 1979, which were higher than the quarterly average design objective of 30,000 pCi per liter. However, as is shown by the data for these special surface water samples taken from location IDA after Octo-ber17, 1979, the quarterly averaged tritium concentration was much less than 30,000 pCi per liter and approached detectability level of 1,000 pCi per liter by November 29, 1979.

The data for the special sediment, fish, and vegetation samples taken from location IDA on October 9 and 10, 1979, shown on pages 5-28 and 5-29, are not significantly different from data for similar samples taken from the regular sampling locations in 1979 or previous years.

In su= mary, some of these special samples from the north end of the Recreation Lake showed activities (especially tritium in surface water during early October, 1979) which were probably the results of the Trojan primary-secondary leakage in early fall, 1979.

However, this leakage was repaired by mid-October, 1979, and the environments.1 radionuclide con-centrations did not exceed the quarterly average design objective values.

4-5

SECTION 5.0 DATA TABLES 3-0

COFDIENTS ON, AND TERMS USED IN DATA TABLES Wet Weight a reporting unit used with organic tissue samples such as vegetation and animal samples ia which the amount of sample is taken to be the weight as received from the field with no moisture removed.

Dry Weight a reporting unit used for soil and sediment in which the amount of sample is taken to be the weight of the sample after removal of moisture by drying in an oven at about 110 C for about 15 hours1.736111e-4 days 0.00417 hours 2.480159e-5 weeks 5.7075e-6 months .

a reporting unit used with air particulate and radiciodine pCi/m 3 data which refers to the radioactivity content expressed in picocuries of the volume of air expressed in cubic meters passed through the filter and/or the charcoal trap.

Note that the volumes are not corrected to standard conditions.

Gamma Emitters samples were analyzed by high resolution (gel 1) gamma or spectrometry. The resulting spectrum is analyzed by a Gamma Isotopic computer program which scans from about 50 to 2000 key and lists the energy peaks of any nuclides present in concentra-tions exceeding the sensitivity limits set for that particular experiment.

NA, NS, NR used in place of a concentration value when a sample was not available (NS), or when a sample was not analyzed for some specific measurement (NA), or when an analysis is not required (NR).

Error Terms figures following "t" are error terms based on counting uncertainties at the 2a (95% confidence) level.

Values pre-ceded by the "<" symbol were below the stated concentration at the 3o (99% confidence) level.

Sensitivity In general, all analyses meet the sensitivity requirements of the program as given in Table II.

For the few samples that do not (because of inadequate sample quantities, analytical interferences, etc.) the sensitivity actually obtained in the analysis is given.

Comment when all analyses of a particular t;pa during the period resulted in concentrations below the sensitivity limits, a statement is made on the appropriate table rather than presenting a whole page of "<" data.

If all but one or two data points are below the sensitivity limits, the previously mentioned convention is followed and the finite data are given as footnotes.

5-1

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_, 5( 3) rCi/m3 D.t e (n3) pCi/n Date (53)

PCi/r Dece 01/04/79 310

.006.002 01/04/79 310

.028!.004 01/04/79 305

.040!.005 01/11/79 95

.017!.005 01/11/79 245

.0312.003 01/11/79 245

.009t.002 01/17/79 225

.007!.003 01/17/79 225

<.002 01/17/79 225

.041!.006 01/24/79 255

.003!.002 01/24/79 250

.010t.002 01/24/79 255

.0102.003 01/30/79 285

.0581.005 01/30/79 285

.038!.005 01/30/79 285

<.002 02/08/79 250

.0052.002 02/08/79 255

.004t.002 02/08/79 255

.0072.002 02/15/79 295

<.002 02/15/79 290

.038t.004 02/15/79 285

<.002 02/22/79 290

<.002 02/28/79 280

.0022.002 02/27/79 245

.002.002 02/27/79 250

<.002 03/08/79 290

.0061.002 Not Available Not Available 03/14/79 240

.0031.002 03/14/79 240

.0051.002 Not Available 03/21/79 285

.0102.002

'03/21/79 315

.006.001 03/21/79 290

.038e.003 03/29/79 235

.017!.002 03/29/79 205 0102.002 03/29/79 240

.045!.005 04/03/79 290

.011!.002 04/04/79 325

.003t.002 04/03/79 285

<.002 04/10/79 285

.0131.002 04/12/79 330

.002!.001 04/10/79 285

.0152.002 i

04/17/79 285

<.002 04/18/79 235

<.002 04/17/79 280

<.002 04/24/79 285

.002.002 04/26/79 330

.0052.002 04/24/79 295

.011!.002 05/01/79 280 016t.003 05/02/79 245

.004t.002 05/02/79 325

.0082.002 05/09/79 325

.0072.002 05/09/79 285

.004!.002 05/09/79 285

<.002 05/16/79 255 034!.004 05/16/79 320

.006!.002 05/16/79 285

.007!.002 05/24/79 Not Available 05/24/79 Not Available 05/24/79 330

.004!.002 05/30/79 240

.014!.002 05/30/79 240

.019!.002 05/30/79 275

.004!.002 06/08/79 365

.003t.001 06/08/79 360

.0091.002 06/06/79 230

.006t.002 06/12/79 165

.010t.003 06/12/79 170

.0051.003 06/12/79 235

(.002 06/21/79 370

<.002 06/21/79 370

.003.001 06/20/79 330

.001t.001 06/28/79 240

.002t.002 Not Ava'lable 06/28/79 290

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Concentrr.tiorm are <0.1 unlece othervire noted.

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0 oi 65 2 93 6

1 1 2 05 0

8 56 c cu 1

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1 1 1 1 1 ee 1

0 00 a c 00000 l l l

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t 35 322 22232 3222 t t22 22223 u n i V

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t e 77 7 7777777 7 7 7 777 7 777777 rd n

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et 86241 964074 0 3084076 A O ca 2 75 1 d

1 2 01 1 2 3 1 21 01 11 t 1 2 001 201 o

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7 7 7 8888999900000 1 1 1 2222 b (*

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(

7

N';?i A"D d' U:n AT, Ji,ECTiiT C AT n"NU"' ICITTiliM 311 'ntl ';!!O;"' WTA.i n AU'. PAiiTICUI. ATE FIT TI'n

( Week t :. Col.' rn: L ien:: )

3 7

(,y Collec tio:'

Ve 9m Groco

Callection Volu:'

Grora 13 Col.l ec t.lon Volume tiroce d l w t r-(: ')

y:i/n n,tr (n3) pci /. 3 Iin t.e (n')

v'i /m3 3

Air Monitor out 01/04/79 305

.005t.002 01/04/79 305

.005!.002 01/11/79 24 0

.031t.003 01/11/79 245

.012!.003 01/11/79 245

.0711.008 01/17/79 225

<.002 01/17/79 225

<.002 01/17/79 230

<.002 01/?4/79 255

.007!.002 01/24/79 255

.006t.002 01/24/79 255

.001t.002 01/30/79 285

<.002 01/30/79 285

.002t.002 01/30/79 285

<.002 02/08/79 250

.006!.002 02/08/79 250

.005.002 02/08/~

250

.033!.003 Not Available 02/15/79 295

.0111.002 02/15/i, 290

<.002 02/22/79 290

.004!.002 02/22/79 290

<.002 02/27/79 250

.007!.002 02/27/79 250

.004!.002 03/08/79 290

<.002 03/08/79 295

.007.002 03/14/79 240

.004!.002 03/14/79 240

.027.004 03/14/79 240

.007t.002 03/21/79 290

.023.002 03/21/79 290

.0101.002 03/21/79 290

<.002 03/29/79 240

.014!.002 03/29/79 240

.060!.006 03/29/79 240

<.002 en 04/03/79 285

.015!.002 04/03/79 290

.016.002 04/03/79 290

.004!.002 E

04/10/79 28 5

.028!.003 04/10/79 285

<.002 04/10/79 285

<.002 04/17/79 280

<.002 Not Afallable 04/17/79 280

<.002 04/24/79 295

.007!.002 04/24/79 290

.012!.003 04/24/79 290

.002!.002 05/01/79 320

.002!.002 05/01/79 275

.018!.002 05/01/79 275

<.002 05/09/79 285

.003.002 05/09/79 335

.008.002 05/09/79 335

<.002 05/16/79 285

.005!.002 05/16/79 285

.004!.002 05/16/79 285

.006.002 05/24/79 320

.093!.002 05/24/79 335

.009!.002 05/24/79 335

.025!.004 05/30/79 275(a)

<.002 05/30/79 290

.015.002 05/30/79 290

.0052.002 06/07/79 330

<.002 06/07/79 280

.012!.003 06/07/79 280

.002!.002 06/12/79 200

<.002 06/12/79 205 009i.003 06/12/79 205

<.002 06/21/79 370

<.002 06/20/79 325

.006.001 06/20/79 325

.004!.001 06/27/79 260

.002.002 Not Availabic 06/28/79 290

.004t.002 (a) Calculated by mean volume.

Iodine enrtridgec are campled veckly.

Concentrationn arc <0,1 unlecc othervice noted.

PORTLAND GENERAL ELECTRIC AIRBORNE 10 DINE-131* and GROS'J BEIA in AIR PARTICULATE FILTERS (Weekly Co1J ectionn) 3 5*

6B*

Collection Volwr.e Groce S Collection Volume Gross S Collection Volume Gross S 3

3 Date (m )

pC1/m3 Date (m3) pCi/m3 Date (m )

pCi/m 3

07/05/79 350

.005t.001 Not Available Not Available 07/12/79 310

.004!.001 07/12/79 310

<.002 07/12/79 310

.0021.001 07/17/79 205

<.002 07/17/79 205

<.002 07/25/79 335

.029!.004 07/25/79 315

.027!.004 07/25/79 315

<.002 08/01/79 275

.002 Not Available Not Available 08/08/79 275

.0041.001 08/08/79 275

.017!.002 08/08/79 285

.0072.001 08/16/79 325

.0062.001 08/17/79 355

.002.001 08/17/79 215

.003!.001 08/22/79 285

<.002 08/22/79 280

.0021.002 08/22/79 280

.002!.002 09/04/79 290

<.002 09/04/79 290

.0071.002 09/04/79 290

<.002 09/11/79 285

<.002 09/11/79 280

.0061.002 09/11/79 280

.005!.002 i

09/19/79 290

<.002 Not Available 09/19/79 300

.0071.002 09/26/79 290

.0031.002 09/26/79 285

.0271.004 10/04/79 330

.005.002 10/04/ 9 330

.0491.005 10/04/79 330

.003!.002 10/10/79 245

.003t.002 10/10/79 245

.0691.008 10/10/79 245

<.002 10/17/79 280

.0081.002 10/17/79 285

.018t.002 10/17/79 285

.0102.003 10/24/79 275

<.002 10/24/79 275

<.002 10/24/79 280

<.002 10/30/79 240

.0041.002 10/30/79 240

.0101.002 10/30/79 245

.0031.002 11/06/79 285

.003t.003 11/06/79 280

.0301.004 11/06/79 280

.0021.002 11/13/79 275

.0941.009 11/13/79 275

.0031.003 11/13/79 275

.0431.003 11/21/79 275

.002!.002 11/20/79 275

.0041.002 11/20/79 275

<.002 11/28/79 275

.0021.002 11/28/79 275

<.002 12/04/79 230

.0061.002 12/04/79 235

.005.002 12/03/79 235

<.002 12/10/79 250

<.002 12/17/79 275

.010!.002 Out of Order 12/17/79 275

.004!.002 12/26/79 360

<.002 12/26/79 360

.003.002

Iodinc cartridges are sampled weekly.

Concentrations arc <0,1 unless otherwise noted.

P03TL4ND 7'FRAL ELECTRIC AI3 BORNE IODINE-131M c.nd GECS3 EETA in AIR PARTICULATE FILTERS (L'cekly Collections) oE 10 11B*

Collection Volune Grecs S Collectien Volume Orocc 6 Collection Volume Grors G

_n) rCi/n3 Dr.t e (r )

_pCi/m Date (m )

ugijn3

( 3 3

3 3

Dste 01/03/79 275

.046!.006 01/03/79 275

.005!.002 01/03/79 275

.009t.002 01/11/79 240

.034!.005 01/11/79 240

.038.005 01/11/79 240

.015!.003 01/17/79 225

<.002 01/17/79 225

.005t.003 01/17/79 225

.004.003 01/24/79 255

.002!.002 01/24/79 250

.003!.002 01/24/79 250

.002!.002 01/30/79 285

.004!.002 01/30/79 285

.002.002 01/30/79 285

<.002 02/08/79 255

.008.002 02/08/79 255

.003!.002 Not Available 02/15/79 290

<.002 02/15/79 300

.002.001 Not Available 02/22/79 290

.002!.002 02/22/79 290

.003!.002 02/22/79 295

<.002 02/26/79 215

.007!.002 02/26/79 215

.017!.003 Not Available 03/08/79 320

<.002 03/08/79 320

.0031.002 Not Available 03/14/79 295

.002!.002 03/14/79 240

.0071.002 Not Available 03/21/79 325

.0081.002 03/21/79 325

.008!.002 Not Available 03/29/79 290

.036!.004 03/29/79 255

.071.007 Not Availabic 04/04/79 275

.0041.002 04/04/79 275

.008.002 Not Available 04/10/79 245

.006.002 04/10/79 285

.006.002 Not Available 04/17/79 280

.003!.002 04/18/79 295

.002.002 04/17/79 195

<.002 04/24/79 290

.005!.002 Not Available 04/24/79 280

.010!.002 05/03/79 360

.0151.003 05/03/79 360

.005!.002 05/03/79 360

<.002 05/09/79 250

.0061.002 05/09/79 250

.002!.002 05/09/79 245

.003!.002 05/16/79 285

.017t.003 05/16/79 285

.013!.002 05/16/79 285

.0091.002 03/24/79 300

.020t.003 05/74/79 290

.008.002 05/24/79 290

.003!.002 05/30/79 275(a)

.012.002 05/30/79 275 (a)

.0091.002 05/30/79 275

<.002 06/0C/79 285

.016!.003 06/06/79 285

.029!.004 06/06/79 285

<.002 06/12/79 245

.012.003 06/12/79 245

.006!.002 06/12/79 245

.002!.002 06/20/79 325

.006!.001 06/20/79 325

.007!.001 06/20/79 325

<.002 06/28/79 295

.004!.002 06/28/79 290

.003.002 06/28/79 290

<.002 (a) Calculated by mean volune.

Iodine cartridges are campled veckly.

Concentrationc are <0.1 unlecc otherwise noted.

e PORTLAND GENERAL ELECTRIC AIRBORNE IODINE-131* and GROSS BETA in AIR PARTICULATE FILTERS (Weekly Collectionc) 11B*

10 9B Collection Volume Gross S Collecticn Volume Gross S Collection Volwr.e Gross S Date (m )

pCi/m3 Date (m )

pCi/m3 3

3 3

07/05/79 295

.0042.001 07/05/79 295

.002!.002 07/05/79 295

.003!.002 07/12/79 270

.0081.002 07/12/79 270

.007.002 07/12/79 250

<.002 07/17/79 200

.010!.003 07/17/79 200

<.002 07/17/79 200

<.002 07/25/79 230 006t.002 07/25/79 330

<.002 07/25/79 370

<.002 08/01/79 275

.0091.002 08/01/79 275

<.002 08/01/79 275

<.002 08/08/79 275

.010.001 08/u8/79 280

.0041.001 08/08/79 275

.0021.001 08/15/79 295

.008.001 08/16/79 (a) 08/22/79 270

.009!.002 08/22/79 280

.003.002 Not Availabic 09/04/79 290

.003.002 09/04/79 290

<.002 09/04/79 290

<.002 09/12/79 320

<.002 Not Available 09/12/79 325

<.002 f

09/18/79 250

.0191.003 Not Available 09/18/79 240

.0211.003 09/25/79 275

.0031.002 Not Available 09/26/79 270

.0062.002 u

10/02/79 275

.0161.002 10/02/79 275

.0061.002 10/02/79 280

.0112.002 10/10/79 305

.0061.002 10/10/79 305

.0282.004 10/10/79 310

.0061.002 10/17/79 275

.0032.002 10/17/79 280

.0301.005 10/17/79 280

.005!.003 10/24/79 275

<.002 10/24/79 275

.024t.003 10/24/79 280 0061.002 10/30/79 245 0032.002 10/30/79 245

.016t.002 10/30/79 245

.0061.002 11/06/79 285

.011.002 11/06/79 285

.0081.002 11/06/79 285

.006!.002 11/13/79 280

.0061.002 11/13/79 280

.0181.002 11/13/79 280

.0182.002 11/20/79 245

<.002 11/20/79 245

<.002 Not Available 11/27/79 275

.0051.002 11/20/79 270

.0131.002 11/27/79 265

.003.002 12/03/79 230

.0031.002 12/03/79 230

.0211.003 12/03/79 160(b)

.0061.003 12/10/79 300

<.002 12/10/79 300

<.002 12/10/79 290

<.002 12/17/79 275

.0041.002 12/17/79 275

.010!.002 12/17/79 275

<.002 12/26/79 365

<.002 Not Available (b) Volume said 56 hours6.481481e-4 days 0.0156 hours 9.259259e-5 weeks 2.1308e-5 months , O Cft used; used 1 Cft for calculations.

(a) Old air monitor replaced with new one.

Iodine cartridges are sampled weekly.

Concentrations are <0.1 unless otherwise noted.

PO*CL/ lid GENEEAL ELECTRIC AIR 3CF"E IODINE-131" and 090SS BETA in AIR FARTICULATE FILTEFS (h'echly Collectienc) lh=

2 lo" Cellectica Vul. -

Crew C Ce llec t ion Volw.e Grocn S Collection Velw e Gr a a 6 Dete (r )

PCi/r3 pegg

( y,3 )

_p;if7 Date (n )

rCi/r3 3

?

3 01/03/79 275

.012!.003 Air Monitor Out No sample due to weather 01/11/79 245

.009t.003 01/11/79 245

.086.010 01/11/79 245

.015.003 01/17/79 225

.003t.003 01/17/79 225

.0272.005 01/17/79 240

.0.0t.003 Out of Order Out of Order 01/24/79 280

.002!.002 01/30/79 235

<.002 01/30/79 285

.003!.002 Out of Order 02/08/i]

255

.0051.002 Not Available 02/08/79 780

.003t.001 Not Available 02/15/79 290

<.002 02/15/79 290

.002!.002 02/22/79 295

<.002 02/22/79 295

.036!.005 Not Available 02/26/79 220

<.002 02/27/79 250

.0041.002 Not Available 03/08/79 320

.005.002 03/08/79 295

.002!.002 03/08/79 295

.0021.002 03/14/79 240

.007!.002 03/14/79 250

<.002 03/14/79 240

.017!.003 Y

03/21/79 325

. 014 t. 002 03/21/79 290

.004.002 03/21/79 335

.002t.001 03/29/79 255

.004t.002 03/29/79 240

.019!.002 03/29/79 265

.009!.002 04/04/79 285

<.002 04/03/79 280

.006t.002 04/04/79 280

<.002 04/10/79 240

<.002 04/10/79 285

.011.002 04/10/79 320

<.002 04/17/79 280

.003!.002 04/19/79 285

<.002 0'./24/79 285

.0081.002 04/24/70 295

.010t.002 04/24/79 285

<.002 05/03/79 360

<.002 05/02/79 320

.013.002 05/01/79 215

.003t.002 05/09/79 245

.003!.002 05/09/79 285

.003t.002 Not Available 05/16/79 285 0091.002 05/16/79 290

.0171.003 05/16/79 565

.004.001 05/24/79 290

.027!.004 05/24/79 320

.020!.003 05/24/79 300

.025t.004 05/30/79 275

.002!.002 05/30/79 275(a)

.005!.002 05/30/79 330

<.002 06/06/79 50

.015!.007 06/07/79 330

.0111.002 06/07/79 245

<.002 06/12/79 Not Available 06/12/79 240

.0081.003 06/13/79 165

.002.002 06/20/79 285

<.002 06/20/79 325

.0051.001 Not Available 06/28/79 290

.0031.002 06/27/79 260

.005t.002 06/28/79 850

.003t.001 (a) Calculated by mean volume.

Iodine cartridccc are car. pled vechly.

Concentratienc are <0.1 unlecc otherwice noted.

PORTLAND GENERAL ELECT! TIC AIHbOHNE IODINE-1315 and GROSS BETA in AIR PAIiTICULATE FILTERS (Weekly Collectionc) lld 2

195 Collection Volume Groca S Collection Voltur.e Groce G Collection Voltune Grocs 6 3

3 3

3

'Jate (m )

pCi/m Date (m3) pCi/m3 Date (m )

pCi/n 07/05/79 350

<.002 07/05/79 240

< 002 07/03/79 350

.0032.001 07/12/79 250

<.002 07/12/79 250

.0101.002 07/12/79 250

.0092.001 07/17/79 200

<.002 07/17/79 200

.0111.003 07/18/79 270

.002!.002 07/25/79 330

<.002 07/25/79 320

<.002 07/25/79 335

<.002 08/08/79 295

.003t.002 08/01/79 275

.0022.002 08/01/79 285

.0061.002 08/08/79 280

.0031.001 08/08/79 285

.009.001 Not Available 08/15/79 260

<.002 08/16/79 390

.005!.001 08/16/79 610

<.002 08/22/79 285

.0081.002 08/22/79 275

.005!.002 08/23/79 280

<.002 09/04/79 290

.0041.002 09/04/79 295

<.002 CS/11/79 280

.0041.002 09/11/79 285

<.002 09/12/79 325

.0041.002 vi 1

0;/1'l/79 230

.002.002 09/19/79 295

.009.002 09/18/79 250

.0091.002 09/2S/79 280

.0121.003 09/26/79 285

.010!.001 09/25/79 275

<.002 10/02/79 280

.0041.002 10/04/79 330

.014.002 Not Available 10/10/79 310

.0091.003 10/10/79 245

.0301.005 10/10/79 250

<.002 10/17/79 280

.0111.003 10/17/79 280

.0191.004 10/16/79 230

.0021.002 10/24/79 275

<.002 10/24/79 275

<.002 10/23/79 275

<.002 10/30/79 245

.0091.002 10/30/79 240

.306!.002 10/30/79 240

.0031.002 11/06/79 285

.0081.002 11/0o/79 275

.009!.002 11/07/79 280

.0262.003 11/13/79 280

.0181.002 11/13/79 280

.0091.002 11/16/79 375

.0231.002 11/21/79 245

.0141.002 11/21/79 280

.006!.002 11/20/79 240

<.002 11/27/79 275

.013.002 11/28/79 275

.0101.002 11/27/79 280

.0731.007 12/03/79 230

<.002-12/04/79 230

.007t.002 12/03/79 235

.0141.002 12/10/79 300

<.002 12/10/79 250

<.002 12/10/79 300 002!.002 12/17/79 275

<.002 Out of Order 12/17/79 220

<.002 12/26/79 365

<.002 12/26/79 360

.0061.002 12/26/79 370

<.002

Iodine cartridges are campled weekly.

Concentrations arc <0.1 unless othervice noted.

Summary GROSS BETA in AIR SAMPLES pCi/m2 Average Maximum Minimum Trojan On-Site Stations IF 0.010 0.058

<0.002 1H 0.015 0.049

<0.002 11 0.013 0.045

<0.002 Oregon Stations 2

0.012 0.086

<0.002 3

0.011 0.094

<0.002 5

0.013 0.069

<0.002 6B 0.010 0.071

<0.002 19 0.010 0.073

<0.002 k'ashington Stations 9B 0.010 0.046

<0.002 10 0.012 0.071

<0.002 11B 0.007 0.021

<0.002 14 0.008 0.027

<0.002 5-10

POTtTLa:iD GE!iEllAL ELECTRIC Q10SS ALPila ANALYSIS OF AIR PARTICULATES 3

Average pCi/n Month Grocn Alpha January

<.002 February

<.002 March

<.002 April

<.002 May

<.002 June

<.002 July

<.002 Augast

<.002 September

<.002 October

<.002 November

<.002 December

<.002 GAMMA ISOTOPIC ANALYSIS OF AIR PARTICULATES Supplementary analysis performed when gross beta exceeds 0.1 pCi/m 3 Collection pCi/m3 Sample Date y Emitters II 11/28/79

<0.3 5-11

TROJAI! UUCLEAR P!JJ:2 RitDI0 ACTIVITY II: A::II'.AL TISEUL (Semiannual Collections)

Tissue nCi/c Wet weight Analyzed Gross Beta Sr-89 Sr-93 Ganma Emitters Beef Collected 02/13/79 at Smith Dairy (16)

Bone 1.8!0.5

<0.04(a) 0.35:0.08

<0.05 Thyroid 0.420.2

<0.01(a)

<0.05 Muscle 0.3!0.1

<0.005

<0.05 Liver

1. 3!0. 3

<0.006(b)

<0.008(b)

<0.05 Beef Collected 02/13/79 1 mile from West Rainier Bone 2.3:0.6

<0. 08 (b) 1.120.2

<0.05 Thyroid 1.120.2

<0.01(a)

<0.05 Muscle 0.820.2

<0.005

<0.05 Liver 4.520.5

<0. 01 (a )

<0.01(a)

<0.05 Beef Collected 08/28/79 at Location 5 Bone 14.221.9

<0.005 0.3210.18

<0.1 Thyroid 4.1!0.5

<0.04(a)

<0.1 Liver 2.610.4

<0.005

<0.1 Heart 1.510.3

<0.005 0.03420.01

<0.1 Muscle 1.9!0.4

<0.005 0.06720.027

<0.1 Beef Collected 08/28/79 at Smith Dairy (16)

Bone 3.211.2

<0.083(a) 1.4!0.1

<0.1 Thyroid 2.820.4

<0.007(a) <0.007(a)

<0.1 Liver 0.820.3

<0.04(a) 0.04:0.04

<0.1, Cs-137=0.210.1 Heart 6.9.+0.7

<0.02(a)

<0.1 Muscle 2.820.4

<0. 03 (a)

<0.03(a)

<0.1, Cs-137=0.310.1 Wild Animals Collected 09/27-28/79 Rabbit - IF 0.410.2

<3.00S(a) 0.029:0.008

<0.05 Rabbit - 11B 1.420.3

<0.005 0.02310.007

<0.05 Opossum - II 2.6!O.3

<0.005 0.069:0.003

<0.05 (a) Lower sensitivity due to lower chemical yield.

(b) Lower sensitivity due to analytical problems.

5-12

TROJM: :iUCLEAR PLAIIT RADIOACTIVITY IN PRODUCE SA'GLES (Semiannual Collections) oCi/g Wet weight Sample Trpe

_ Gross Beta Sr-89 Sr-90 Gamm1 Emitters Collected 07/23/79 at II Beets 6.2 0.6

<. 003 (b)

.011:.007

<0.05 Chard 5.000.5

< J01

.020!.002

<0.05 Lettuce 4.0:0.4

<.006(c)

<.006(b)

<0.05 Strawberries 1.1:0.1

<.005(c)

.011t.005

<0.05 Collected 10/17/79 at II Cucumbers 0.7 0.1

<.01 (a,b).0342.027

<0.05 Chard 1.6 0.2

<.019(a,b)

<0.05 RADI0 ACTIVITY III GRASS SA'2LES (Semiannual Collections) pCi/r '. Jet weight Site Gross Beta Sr-89 Sr-90 Ce-144 Cs-137 Other y Collected 03/13/79 1F 5.910.6

<0.08(a)

<0.09(a)

<0.6

<0.05

<0.05 II 5.620.6

<0.07(a) 0.11:0.08

<0.5 0.0820.03

<0.05 3

2.7t0.3

<l.0 (a) 0.16:0.12

<0.5

<0.05

<0.05 5

2.6!0.3

<1.0 (a) 0.19:0.13

<0.5

<0.05

<0.05 8

5.720.6

<0.5 (a) 0.13:0.08

<0.5

<0.05

~

113 3.7t0.6

<0.4 (a) 1.4 20.1 1.020.3 0.2020.03

<0.05 Collected 07/23/79 1F 6.3!1.0

<0. 04 (a,5)

<0.04(a,b)

<0.4

<0.05

<0.05 II (d)

<0. 008 (c )

0.03':0.010

<0.2

<0.05

<0.05 3

14.0 1.0

<0.06(b) 0.08:0.08

<0.3

<0.05

<0.05 5

5.7!0.5

<0.01(a) 0.02:0.01

<0.2

<0.05

<0.05 g

(d)

<0.02(b) 0.12:0.02

<0.7

<0.05

<0.05 113 8.020.8

<0.03(a)

<0.2 0.05:0.01

<0.05 (a) Lower sensitivity due to low chenical yield.

(b) Lower sensitivity due to insufficient sample.

(c) Analytical detection limit not enough to meet sensitivity requirement.

(d) Sample lost in processing.

5-13

PORTLAND GENERAL ELECTRIC RADI0 ACTIVITY IN WELL WATER SAMPLES (Quarterly Collection;)

pCi/l Collection 1G 3

6A Date Gross 6 Tritiun y Emitters Gross G Tritium y Emitters Cross S Tritium y Emitters 02/14/79 1.310.7

<1000

<25 1.5t0.7

<1000

<25 1.2 0.7

<1000

<25 05/22/79 1.410.7

<1000

<25 1.310.7

<1000

<25 0.810.6

<1000

<25 07/2J/79

<0.5

<1000

<25

<0.5

<1000

<25

<0.5

<1000

<25 10/28/79 0.720.5 710t330

<25 1.210.7

<1000 (25 0.8!0.7 710!330

<25 f_C,ifl Collection 11B 16 v'

Date Gross B Tritium y Emitters Gross B Tritium y Emitters f

_[.

02/14/79 1.410.7

<1000

<25 1.3 0.7

<1000

<25 05/22/79 1.3t0.7 8002300

<25 1.2!0.7

<1000

<25 07/23/79

<0.5

<1000

<25

<0.5

<1000

<25 10/28/79 0.9!O.5

<1000

<25 1.5!0.8 760t330

<25 t

PORTLAND GENERAL ELFCTRIC RADI0 ACTIVITY IN MILK SAMPLES (Monthly Collections)

(Semi-monthly beginning October) pCi/1 pCi/1 Collection 7

Collection 15 Date 1-131 Sr-89 Sr-90 y Emitters Date I-131 Sr-89 Sr-90 y Emitters 01/25/79

<0.5

<1 5!2

<50 01/25/79

<0.5

<2(a) 3(a)

<50 02/28/79

<0.5

<l 2 1

<50 02/28/79

<0.5

<1 21

<30 03/29/79

<0.5

<1 3t2

<50 03/29/79

<0.5

<1 2!1

<50 04/25/79

<0.5

<1 211

<50 04/25/79

<0.5

<1 311

<50 05/23/79

<0.5

<1 7!5

<50 05/23/79

<0.5

<1 6!5

<50 06/28/79

<0.5

< 2(a) 322

<50 06/28/79

<0.5

<1 3!2

<50 07/19/79

<0.5

<1 2!!

<50 07/19/79

<0.5

<3(a) 5!4

<50 08/28/79

<0.5

<6(b)

<50 08/28/79

<0.5

<1

<50 09/25/79

<0.5

<1 413

<50 09/26/79

<0.5

<1 1:1

<50 10/09/79

<0.5

<1 621

<50 10/10/79

<0.5

<1 211

<50 10/23/79

<0.5

<1 411

<50 10/17/79

<0.5

<1 312

<50 11/06/79

<0.5

<50 10/24/79

<0.5

<1 111

<50 en 1.

11/20/79

<0.5

<2(a) 2!2

<50 11/06/79

<0.5

<1 513

<50 12/03/ 79 (d)

<0.5

<1 312

<50 (c) v' (a) Lower sensitivity due to low chemical yield.

(b)

Insufficient sample for more sensitive analysis.

(c)

Location gone out of business; sold cows.

(d) One December collection; non-grazing season.

PORTLAND GENERAL ELECTRIC RADI0 ACTIVITY IN MILE SAMPLES (Monthly Collections)

(Semi-monthly beginning October) pCi/l pC1/1 Collection 16 Collection 18 Date I-131 Sr-89 Sr-90 y Emitters Date I-131 Sr-89 Sr-90 Y Emitters 01/25/79

<0.5

<1

<50 01/25/79

<0.5

<1 211

<50 02/28/79

<0.5

<2(a) 2!!

'50 02/28/79

<0.5

<1 3!1

<50 03/29/79

<0.5

<l 5!1

<50 03/29/79

<0.5

<1

<50 04/25/79

<0.5

<1 2!1

<50 04/25/79

<0.5

<1 21

<50 05/23/79 0.5

<1 75

<50 05/23/79

<0.5

<1 12t6

<50 06/28/79

<0.5

<1 1 1 c50 06/28/79

<0.5

<1 2!1

<50 07/19/79

-0.5

<2(a)

<50 07/19/79

<0.5

<2(a)

<50 08/28/79

<0.5

<1

<50 08/28/79

<0.5

<1 51

<50 09/26/79

<0.5

<2(b) 8!:!

<50 09/25/79

<0.5

<1 3!1

<50 10/10/79

<0.5

<1 2!!

<30 10/10/79

<0.5

<1 4!!

<50 10/24/79

<0.5

<1 311

<50 10/23/79

<0.5

<1 2!1 s50 11/06/79

<0.5

<1 3!2

<50 11/06/79

<0.5

<1 7t2

<50 11/20/79

<0.5 (c)

(c)

(c) 11/20/79

<0.5

<1 2!1

<50 v,

12/03/ 79(d)

<0.5

<1 22

<50 12/03/79 (d)

<0.5

<1 2!2

<50 (a) Lower sensitivity due to low chemical yield.

(b)

Insufficient sample for more sensitive analysis.

(c) 4000 ml 1telutd sample lost in shipment.

(d) One December collection; non-grazing season.

t 9

PORTLAND CENERAL ELECTRIC RADIOACTIVITY IN MILK SAMPLES (Semi-monthly Collections)

New stations beginning Sept., 25, 1979 pCi/l pCi/l Collection 17A Collection 63 Date I-131 Sr-89 Sr-90 y Emitters Date I-131 Sr-89 Sr-90 y Emitters 09/25/79

<0.5

<3(a) 413

<50 09/25/79

<0.5

<2(a) 11!2

<50 10/09/79

<0.5

<1 411

<50 10/09/79

<0.5

<l 811

<50 11/07/79

<0.5

<1 1013

<50 10/23/79

<0.5

<1 8!2

<50 11/20/79 (b)

<1 611

<50 11/07/79

<0.5

<1 10 2

<50 12/04/79(c)

<0.5

<2(a) 414

<SO 11/20/79

<0.5

<1 511

<50 12/04/79(c)

<0.5

<1 812

<50 v,

(a) Lower sensitivity due to low chemical yield.

(b) Sample lost during processing.

(c) One December collection; non-grazing season.

/

TROJ/J: I!UCLEAR PLAUT RADI0 ACTIVITY I!! SOIL SA'TLES (Semiannual Collections)

Collection nCi/r Dry eeicht Date Gross Beta Sr-89 Sr-90 Cs-137 Other Gamma

Location lA 03/13/79 2.220.5

<0.01

.012.01 0.110.1

<0.1 07/21/79 1.5!0.4

<0.01

.242.01 0.7!0.2

<0.1 Location IF 03/13/79 3.020.5

<0.02(a)

.07!.02

<0.1

<0.1 07/21/79 1.610.8

<0.01

.20!.02 0.620.1

<0.1 Location II 03/13/79 2,1 0.5

<0.01

.332.02 0.620.1

<0.1 07/21/79 1.220.4

<0.01

.302.03 0.820.2

<0.1 Location 3 03/13/79 2.9:0.5

<0. 02 (a)

.26!.03 1.1!0.2

<0.1 07/21/79 2.220.4

<0. 02 (a)

.201.03 0.7 0.1

<0.1 Location 5 03/13/79 3.120.5

<0. 03 (a)

.33!.05 1.520.2

<0.1 07/21/79 1.210.4

<0. 02 (a)

.122.03 0.420.1

<0.1 Location 8 03/13/79 2.9:0.5

<0.01

.151.02 0.6 0.1

<0.1 07/21/79 2.010.5

<0.01

.21.02 1.220.1

<0.1 Location 113 03/13/79 1.120.4

<0.01

.101.02 0.220.1

<0.1 07/21/79 1.1!0.4

<0.01

.07!.02 0.220.1

<0.1 (a) Lower sensitivity due to low chemical yield.

5-18 ;

TROJMi UUCLEAR PLAUT GROSS BETA & TRITIU'1 CONCEUTRATIOUS IU PRECIPITAT:0N SAMPLES (Monthly Collections) pCi/l Met Tower (1F)

'doodland (93),

Rainier (2)

Gross B Tritium Gross 8 Triti'g, Gross S Tritium January 1422

<1000 23 3 (2000 6!2

<1000 February 31

<1000 3:1

'1000 2!1

<1000 March 3:1

<1000 8:2

<1000 1223

<1000 April 41

<1000 6:1

<1000 3 t1

<1000 May 2:1

<1000 3:1

<1000 221

<1000 June 1522

<1000 711

<1000 12 2

<1000 July 1122

<1000 10:1

<1000 25!3

<1000 August 2:1

<1000 2:1

<1000 2!1

<1000 September 2:1

<1000 2:1

<1000 21

<1000 October 221

<1000 2?i

<1000 2!1

<1000 November 11

<1000

' -1

<1000 221

<1000 December Not Available 21

<1000 1:1

<1000 GAIGIA ISOTCPIC AHA'.YSES OF PRECIPITATION S!d2LES HAI::G GP.' 3S BETA COUCE::IPATION IU E!. CESS OF 10 pCi/l Gan n E-itterc pCi/1/nuclide*

Month I:e

'over (1F)

E'codland (9B)

Rainier (2)

January

<25

<25 NR May NR NR

<25 June

<25

R

<25 July

<25

Exclunive of r.iturally occurring radionuclides.

i 5-19 l

/d1BIENT G/JDIA RADIATION LFNELS - 1979 mR/ day (mean daily exposure)

First Second Third Fourth Site Quarter Quarter Quarter Quarter Annual Monthly lA 0.13 0.12 0.10 0.08 0.15 1B 0.12 0.10 0.09 1C 0.16 0.14 0.12 0.10 0.14 1E 0.11 0.12 0.09 0.09 0.11 1F 0.16 0.14 0.12 0.11 0.12 0.12 1H 0.14 0.12 0.09 0.10 0.12 11 0.14 0.11 0.10 0.09 0.10 1J 0.13 0.11

0. r)9 0.09 0.12 2

0.17 0.18 0.12 0.14 0.14 3

0.15 0.17 0.15 0.11 0.13 4C 0.12 0.13 0.12 0.11 0.13 5

0.19 0.16 0.14 0.12 0.15 6B 0.13 0.14 0.12 0.09 0.15 7

0.16 0.14 0.11 0.09 0.12 8

0.17 0.16 0.13 0.11 0.15 93 0.16 0.13 0.11 0.10 0.12 10 0.16 0.15 0.12 0.10 0.14 0.12 11A 0.12 0.16 11b 0.15 0.12 0.11 0.08 0.11 12 0.14 0.16 0.10 0.09 0.15 13 0.19 0.13 0.12 0.11 0.12 14 0.15 0.15 0.12 0.09 0.16 0.12

Dosimeter vandalized during field exposure 5-20

AMBIENT CA3DIA RADIATION LEVELS Fourth Quarter, 1979 Dose Rate Dose Rate Site (mR/ day)

Site (mR/ day) 20 0.09 42 0.14 21 0.09 43 0.12 22 0.14 44 0.13 23 0.14 45 0.12 24 0.09 46 0.11 25 0.11 47 26 48 0.12 27 49 0.12 28 0.13 50 0.10 29 0.17 51 0.10 30 52 0.11 31 0.13 53 32 0.12 54 0.16 33 55 0.11 34 0.13 56 0.11 35 0.12 57 0.14 36 0.13 58 0.10 37 0.13 59 0.10 38 0.10 60 0.11 39 61 0.10 40 0.11 62 0.10 41 0.15 64

Dosimeter vandalized during e::posure 5-21

PORTI.AND GENERAI. ELECTRIC RADIOACTIVITY IN SURFACE WATER SAMPl.ES (Monthly Col 1ections) pCi/l Collection lA IB ID Date Gross 6 Tritium y Emitters Gross S Tritium y Enitters Gross 3 Tritium y Emitters 01/31/79 1.020.5

<1000

<25 2.3!0.8

<1000

<25 1.9 0.8

<1000

<25 02/14/79 0.7t0.5

<1000

<25 2.120.7

<1000

<25 1.4!0.7

<1000

<25 03/29/79 2.8!0.9

<1000

<25 1.2!0.8

<1000

<25 1.520.8

<1000

<25 04/26/79 1.810.8

<1000

<25 1.120.8

<1000

<25 0.9!0.8

<1000

<25 05/24/79 1.7?O.8

<1000

<25 0.9 0.7 NA c25 2.220.8

<1000

<25 06/27/79 1.110.7 9301360

<25 1.310.7

<1000 c25

<0.7 11001400

<25 07/25/79 1.0to.7

<1000

<25 1.6!0.7

<1000

<25 1.310.7

<1000

<25 08/27/79 2.11.0 1500t400

<25 2.0 1.0 1400i400

<25 2.0 1.0 11001400 (25 09/24/79 1.0!0.6 2000t400

<25 2.l!0.9 2000!400

<25 1.8 0.9 2000i400

<25 10/18/79 1.5!0.8 16001300

<25 1.6!0.8 1500 300

<25 2.610.9 1700!300

<25 10/31/79 2.0!1.0

<1000

<25 1.0tl.0 1100!300

<25 2.0 1.0 24002300

<25 y

11/05/79 1.9!0.8 17002400

<25 2.320.8 3600 400

<25 1.6!0.8 1600 400

<25 j

12/28/79 1.310.8

<1000

<25 1.420.7

<1000

<25 1.410.7

<1000

<25 t

s

POR.TLAND GENERAL ELECTRIC RADIOACTIVITY IN SUFFACE WATER WAMPLES (Monthly Collections) pCi/l Collection CR2 CR3 CR4 Date Gross 6 Tritium y Emitters Cross 6 Tritium y Emitters Gross 6 Tritium y Emitters 01/31/79 2.410.8

<1000

<25 2.210.8

<1000

<25 1.910.8

<1000

<25 (Feb.) 03/01/79 2.910.8

<1000

<25 3.910.9

<1000

<25 4.110.9

<1000

<25 03/29/79 2.410.9

<1000

<25 2.1 0.9

<1000

<25 3.010.9

<1000

<25 04/26/79 2.410.8

( 1000 c25 2.310.8

1000

'25 1.710.8

<1000 c25 05/24/79 1.910.8 1000

<25 1.910.8 (1000

<25 1.810.8

<1000

<25 06/27/79 2.410.8

<1000

<25 1.410.7

<1000

<25 1.410.7

<1000 (25 07/18/79 2.lto.7

<1000

<25 2.110.8

<1000

<25 1.710.7

<1000

'25 08/26/79

<l.0 15001400

<25 2.011.0 13001400

<25 2.011.0 17001400 (25 09/26/79 1.210.8

<1000

<25 1.210.8

<1000

<25 1.310.9

<1000 c25 10/17/79 1.310.8

<1000

<25 1.4!0.8

<1000

<25 2.510.8 26001400

<25 II/29/79 1.0!O.6

<1000'

<25 1.910.7

<1000

<25 2.610.8

<1000

<25 6

12/27/79

1. 9 tO. 7

<1000

<25 0.8t0.7

<1000

<25 1.610.7

<1000

<25 u

w

PORTLAND GENERAI. ELECTRIC RADI0 ACTIVITY IN SURFACE WATER SAMPLES (Quarterly Collections) pCi/l Collection IC 4A 6C Date Gror.s "

Tritium y Emitters Gross 6 Tritium y Emitters Gross 6 Tritium y Emitters 02/14/79 1.4!0.7

<1000

<25 1.2!0.7

<1000

<25 1.510.7

<1000

<25 05/23/79 0.9!O.7

<1000

<25 0.7!O.7

<1000

<25 4.110.7

<1000

<25 07/23/79 1.310.5

<1000

<25 0.7f0.5

<1000

<25

<0.5

<1000

<25 10/30/79 2.011.0 690t320

<25

<l.0 930!320

<25 1.0tl.0 (1000

<25 RADIOACTIVITY IN DRINKING WATER SAMPLE f

from Rainier Municipal Water Supply (2)

??

(tlonthly Composite Sanple)

Collection pCi/l Date Cros-6 Tritium y Emitters 10/02-11/02/79 3.Itl.5

<1000

<25 11/03-12/02/79 2.011.3

<1000

<25 12/03-01/03/80 1.610.7

<1000

<25 a

TROJAN NUCLEAR PLANT RADIOACTIVITY IN S110 RELINE SOIL SAMPLES (Semiannual Collections) pCi/g Dry weight CRI CR3 CR5 Gross Gamma Gross Camma Gross Gamma Collection Beta Emitters Beta Emitters Beta Emitters 1st half (03/06/79)0.7!0.3

<0.1 1.620.4

<0.1 0.7t0.3

<0.1,Cs-137=0.110.1 05/24/79 State Split 2.6!0.5

<0.1 Cs-137=0.1:0.1 2nd half (07/18/79) 1.020.6

<0.1 0.610.6

<0.1 0.8io.5

<0.1 RADIOACTIVITY IN SEDIME';T SAMPLES (Semiannual Collections) pCi/g Dry weight Gross Location Beta Cs-137 other y 1st Half 1979 (Feb.-March) 1A 5.8!0.6 0.3 0.1

<0.1 IB 2.720.7

<0.1

<0.1 1D 4.9t0.9

<0.1

<0.1 CR2 0.5!0.3

<0.1

<0.1 CR3 2.7t0.5 0.4!0.1

<0.1 CR4 0.610.4

<0.1

<0.1 2nd Half 1979 (July) 1A 2.021.0

<0.1

<0.1 13 2.0!1.0

<0.1

<0.1 1D 2.011.0

<0.1

<0.1 CR2

<0.5

<0.1

<0.1 CR3 1.0tl.0

<0.1

<0.1 CR4

<0.5

<0.1

<0.1 CR3 12.0t2.0 0.4!0.1

<0.1, Co-60=0.3!0.2 (10/17/79 - State Split Sample) 5-25

8 a

m O.

N LA O

a l

l l

l g g +: l O

m U

C.

O m

O.

O O

l 4 I I t I f i 1

+t i

C CC E

O.

O CS O;

N N'

tt)

N H.

N O CC e.

N 00 3<

N

).

N 00 O

Q

+' '

r c

O O @'

I i

i l i l i i i I O

O 4

C 4.***

H U

g H^

N OO n,

< te u

N H

D C D

D 7

Ct o CC n

<.H H

q m&

N W

M C

N m

C O O.

p.,

N O

5 m

O O O OO M

M M

1 l

l 1

l l

l

+1

<C C/) H 0

tr W

W cN W

W O

K U

H H

O. <.

(C a

3O C

C r*

O L

M

~f OO C

D ZH N

h

'T3 H

n

< C

.H u!

C C

t/) C U

V.

^n

^

C GL (C

M 4.c

.c N

OO in on L9 C

- k Z C C w vv v

i O O O O. C C

9 H C E V O O LA C' L9 O

-I Eu

- - O. O. O OOOOO C

e E

C u V V vvv t*

bo C

-4 OC OOO

H H cn G

vv vv u

pv N

.d W

H

e. o ec

& N LA ^

CC

-c-OOO C O C

U O

U C C. O. C. C O. O. O. V N

CC O

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+i

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+8 0

C3 1

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c. q

<2" k

CC N m

<-NV O

c v3 O. O.

O. O.

O. O. O.

O-E OC OO COO L

C mmeme e^

W r C C C C C C vvvvv Lq L9 LA V V C

C*

- - rn - -

OOON O O

C' O C C O. O O. O. O. O.

CO E

l h

OOCOO OOCO O C

t.G vvvvv V V VV V V-u C

0 O. O m c O.

w N <Nmeq y

L1

- OON w

t/? C O O, O, O O

+< + + +i +i

+t

+i +i +i +i w

Ou N & N. m O O C. N. O.

i W G N

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-eN &

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- -UUU

-*OUU 5-26

e TROJAN NUCLEAR PLANT RADIOACTIVITY IN FISil SAMl'LES (Semiannual Collections)

Collected:

05/23/79 Analyzed as whole fishes pCi/g wet weight

.._ Spe_cfes _

_ Site _

Gross _S.

_Sr_-89_

Sr-90 Salmon CRIA 0.710.3

<0.01(a)

Salmon CR3 0.710.1

<0.01(a)

< 0. 01 (a )

Steelhead CR5 1.I10.I

< 0. 01 (a )

<0.01(a)

Crappie lA 1.920.2

<0.008(a) 0.02920.007 Crappie ID 1.020.3

<0.01(a) 0.01820.009 p C_i_/3 wet weight Muscle Viscera Bone Gamma Gamma Gamma

__ Species _

Site Gross _q_S_r-89 Sr-90 Emitters Gross 6 Sr-89

_Sr-90 Emitters Gross 6 _Sr-89_ _Sr-9_0_ Emitters v,

L N

Collection Date:

07/24-25/79 King Salmon Cala 2.810.5

<.005

<0.1 2.310.4 <.01(b) <.01(b)

<0.1 2.6!0.7 <.02(a) <.03(a)

<0.1 King Salmon CR3 1.3:0.3 <. 02 (a) <. 02 (a)

<0.1 (c) -

1.620.6

<. 025 (a ) <. 02 5 (a)

<r 1

King Salmon CRS 1.010.3

<.005

<0.1 0.5 0.4 <.014(b) <.015(b) <0.1 3.110.6 <.02(a) <.02(a) w.1 American Stud II.

2.320.3

<.005

<0.1 1.810.3 <.005

<.005

<0.1 2.510.5

<.02(a) <. 02 (a )

<0.1 Carp ID 1.920.3

<.005

<0.1 1.6!0.3 <.005

<.005

<0.1 1.910.5

<.03(a) <.03(a)

<0.1 (c) Fish in deteriorated condition; viscera not obtainable.

(b) Insufficient sample for more sensitive analysis.

(a) Lower sensitivity due to low chemical yield.

PORTLAND GENERAL ELECTRIC SPECIAL SAMPLE COLLECTIONS Surface Water IDB IDA Collection pCiel Collection pCi/1 Date Gross B Tritium y Emitters Date Gross 8 Tritium y Emitters 10/04/79 5.0!1.6 8300028000

<25 10/23/79 2.4!0.9 7600 800

<25 10'/09/79 5.011.1 60000!6000

<25 10/31/79 0.9!0.6 4200t400

<25 10/17/79 3.3!1.0 34000!3000

<25 11/05/79 1.410.8 2300!400(a)

<25 10/23/79 6.021.1 25001400

<25 11/16/79 2.9!1.3 3730t360

<25 10/31/79 14.0!1.0 6900!700

<25 11/21/79 1.8!0.8 39001400

<25 11/05/79 5.ltl.1 2800t400(a)

<25 11/29/79 2.2tl.3 21001300

<25 11/16/79 8.311.7 81601490

<25 12/04/79 3.011.3 800 300

<25 12/11/79 4.3!1.0 8301350

<25 11/21/79 i.4 1.1 5200tS00

<25 11/29/79 3.011.5 7701330

<25 12/04/79 3.9!1.5 6001300 (25 12/11/79 5.2 0.9 8801350

<25 Y

M Sediment IDA Collection pCi/g dry Date Gross 3 Cs-134 Cs-137 Other y 10/09/79 2.411.1 0.8!0.1 1.110.1

<0.1 (a) Sampics not differentiated between IDA and IDB.

s

e i

PORTLAND GENERAL ELECTRIC SPECIAL SAMPLE COLLECTIONS Fish IDA Collection pC1/g wet Date Sample Type Gross B Sr-89 Sr-90 y Emitters 10/09-10/79

. Bullheads (5) 1.010.2

<0.007 0.02910.006

<0.1 Largemouth Bass 1.010.3

<0.005 0.05110.007

<0.1 (2)

T M

Aquatic Vegetation IDA Collection pCi/g wet Date Gross 6 Sr-89 Sr-90 I-131 Cs-134 Cs-137 Co-60 Other y 10/09/79 0.610.1

<0.005 0.008!O.004 0.66t0.26 0.4710.07 0.58!0.08 0.1010.05

<0.05

ML19296D567

Text

SUMMARY

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