Information Technology Solutions

TechCom International (TCI) has expertise in radiation

monitoring which nuclear generating plants need to

develop plans to guide their maintenance, bridging and

replacement strategies. Our experts can assess the

situation for each radiation monitor in you plant, or for an

entire fleet of plants and develop the most cost effect

path meet short, intermediate and long term goals for

system availability and obsolesce issues.

Our team will assess the failure history and provide a

detailed analysis of the failure modes causing loss of

availability. For each radiation monitoring system

channel a recommendation made for : 1) re-design, 2)

restoration, 3) enhanced preventive maintenance (EPM),

4) replacement, 5) deletion, or 6) status quo.

When replacement is necessary, TCI will develop

bridging strategies to meet interim goals of returning the

system health to a green status while the replacement

strategy is implemented. We base our prioritization

on your actual failure rate, factoring in parts

availability, and realistic replacement schedules,

ensuring the proper strategy is recommended.

We also conduct interviews with RMS System

Engineers from other nuclear facilities employing the

similar monitors and components to evaluate their

operating/maintenance experience and any actions

they have taken to improve reliability and

performance. Information is the key to our success.

Please call our president, Dr. Bob Katebian at

extension 222, to learn how our expertise in radiation

monitoring can meet your plant’s needs.

Case Study: Port St. Lucie

When FPL’s Port St. Lucie

Nuclear Plant noticed an

increase in the number of failures

in their RMS systems, they called

on TCI to provide a remedial

action plan. TCI spent time at

the site interviewing engineering,

operations and maintenance

personnel. We collected the

preventative and corrective

maintenance history for each

monitor and assessed the

failures.

Based on our analysis TCI was

able to provide a detailed plan

which determined which monitors

should be replaced and which

could be redesigned and which

monitors were in good working

condition. We also provided

comparisons with Nine Mile Point

2 and Calvert Cliffs 1 & 2, to

statistically benchmark the

expected reliability of each

system.

Radiation Monitoring Capabilities: Remedial Action Plan

Our experts can perform the complex calculations typical of radiation monitoring systems in nuclear plants. These include:

Heat Trace Setpoint Calculations

Particulate Plate-out in Monitoring Sample Lines

Isokinetic and Particle Size Conditions

Correction for Background and Shielding Requirements

Radioactive decay during the sampling and preparation periods

Calculation of detection limits

“Th e To o th Fa i ry P ro j ec t . ”

The Radiation Public Health

Project (RPHP) assert that levels

of radioactive strontium-90 (Sr-

90) are rising in the environment

and that these increased levels

are responsible for increases in

cancers, particularly cancers in

children, and infant mortality. The

group claims that radioactive

effluents from nuclear power

plants are directly responsible for

the increases in Sr-90. In one

study of 5000 baby teeth, RPHP

researchers reported that Sr-90

concentrations in baby teeth are

higher in areas around nuclear

power plants than in other areas.

However, numerous peer-

reviewed, scientific studies have

found no correlation. For the

NRC’s rebuttal see

"Backgrounder on Radiation

Protection and the "Tooth Fairy"

Issue" U.S. Nuclear Regulatory

Commission. 2010-02-17

For more information on any of

TCI’s services please visit us on

the Web at www.tci-corp.com or

call our president, Dr. Bob

Katebian (ext. 222).

TCI was requested to assist the San Onofre Generating

Station in decommissioning Unit 1, we were asked to

redesign the effluent Radiation Monitor Systems required

to monitor the decommissioned structures. In one example

TCI designed the SONGS North Industrial Area Sump

Radiation Monitor entirely from warehouse spares and

parts readily available from local sources. TCI provided

detailed prints and assembly drawing, programmed the

state logic for the MGPI LDU and prepared the ECP

package. TCI saved the site tens of thousands of dollars

and months of time associated with purchasing and

installing a new system.

RMS Skid Design

TechCom International Corporation (TCI), with

Headquarters in Irvine, California offers a

complete range of engineering services from

feasibility studies to conceptual and detailed

engineering through total responsibility for

turnkey projects. Our expertise encompasses:

• Instrument and Control System Engineering

• Distributed Control System Design

• Advanced Control Systems Design

• Electrical Engineering

• Plant System Checkout and Startup Services

• Mechanical Engineering

• Civil Engineering

• Construction and Project Management

• Simulator Design, Programming and

Construction

• Project Management

• Construction Management

440 Goddard

Irvine, CA 92618

949.453.1900 phone

949.453.1902 fax

www.tci-corp.com

Radiation Monitor Calculations

Additional Services

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SONGS NORTH INDUSTRIAL SUMP RAD MONITOR

2/3RE2101 SKID LAYOUT

BY: C B WHITTLE, PE/TECHCOM INTERNATIONAL DATE: 11/8/2005

CLIENT: SOUTHERN CALIFORNIA EDISON/ SONGS UNIT 1 DECOMISSIONING

TECHCOM INTERNATIONAL

SCALE 1" = 4"

DESCRIPTION*PART NO.SIZEQTY.ITEM NO. NOTES

BILL OF MATERIAL

VENT

ISOLATION

DRAIN

39-1/2"

36

"

BALL VALVE, 3/4" TUBE, SWAGELOK #SS-45S12024-714563/4"51 -

TEE, 3/4" TUBE UNION SWAGELOK #SS-1210-3024-155453/4"32 -

ENDRESS+HAUSER FLOW METER #63I-T16AAW00A25B303-120781/2"13 REUSE PART FROM U1-RE2101; RETAG 2/3FISL2101

C6X10.5, 6"WD X 2"FLANGE WD X 3/8" WEB, CARBN STL116-128016"12 FT4 USE FOR ENTIRE FRAME - A36 SPEC, 10.5 LBS/FT

ANGLE 3" X 3" X 1/4" SIZE, CARBON STL025-439083" x 3"14 FT5 A36 SPEC MATERIAL

RAW METAL PLATE, 1/2" THK X 96" X 48", CARBON STL025-136951/2" x 4" x 8"26 A36 SPEC, FABRICATE PER SECTION B

3/4X1/2 REDUCING TUBE UNION, SWAGELOK #SS-1210-6-8 024-473403/4" x 1/2" 27 -

ADAPTER TUBE TO NPT, 3/4" x 1", SWAGELOCK#SS-1210-6-8-3/4" x 1"38 -

SEAMLESS SS TUBING, 0.065" WALL -3/4"14 FT9 304 SS, A269 SPEC, 20 FT PIECE, 0.267 LBS/FT

ADAPTER, TUBE / NPT, 3/4" x 1/2",SWAGELOK#SS-1210-1-8024-162613/4" x 1/2"210 -

LEAD RINGS FOR PIG--1411 REUSE PARTS FROM U1-RE2101

SAMPLE CHAMBER WITH 1/2" TUBING-3 LITER120 REUSE PARTS FROM U1-RE2101

ANGLE 1-1/2"x1-1/2"x1/4" SIZE, CARBON STEEL 025-306081-1/2" x 1-1/2"413 A36 SPEC MATERIAL

TUBING CLAMP 3/4", GIRARD #3/4T-MS-3D -3/4"514 2-3/4" x 1-1/2" x 3/4"

3-1

/2"

3"

3"

10

-1/2

"1

4"

1"

1"

THREAD 1/2" PIPE 3-1/2"OD FLANGE 316SS MMC 43615K5611/2"215 -

OVAL EYE NUT 1/2x13TPR, 316SSMMC 3081T181/2" x 13 TPI416 2-1/2"H x 1-1/4"ID 2240 LBS WORKING LOAD

316 SS THREADED ROD1/2" x 13TPI 3' LMMC 93565A2351/2" x 13 TPI417 CUT TO REQUIRED SIZE, APPROX 17"

316 SS HEX NUT 1/2" x 13 TPIMMC 95005A1351/2" x 13 TPI818 3/4"W x 7/16"H

316 SS SPRING LOCK WAHSER, 1/2" SIZEMMC 92147A0331/2"819 .512ID x .869OD X .125 THICK

LEAD PLUG WITH HANDLE--112 REUSE PARTS FROM U1-RE2101

DETECTOR HOLDER--122 REUSE PARTS FROM U1-RE2101

2-3/8"

1-1/2"

5-3/4"5-3/4"4-1/2"3-5/8"3-1/2"2-1/2"8"2"

1 2 1314

1314

1314

514

5

1

1

2-WAY SOLENOID VALVE, ASCO#8210G88-3/4"123 -2324

3/4" CHECK VLV 1-PSI OPEN, SWAGELOCK #SS-CHS12-1-3/4"124 -

1" PIPE FLANGE 1" FNPT, 4-1/4" DIA MMC 44695K131"121 -

34

8

3

2

26ADAPTER TUBE TO NPT, SWAGELOCK#SS-1210-6-12-3/4" x 3/4"226 -

6 6

LEAD PLUG--127 REUSE PARTS FROM U1-RE2101

SEE DETAIL 1

FOR

INTERNALS

9

1-1/2"

7

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TOP OF SUMP - ELEV 15'-0"

1"

GR

OU

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TY

PIC

AL

45

-1/2

"

30

"

1-1

/2"

1/2

"

3"

10

-1/2

"1

6-1

/2"

7

12

10

1

HEX CAP SCREW SS,1/2"D x 13 TPI x 2" LMMC 93190A7201/2" x 2"428 1/2"D x 13 TPI x 2" L

18 19 TYP

18 19 TYP

28

28 TYP

TYP

INSTRUMENT ENCLOSURE WALL

STUD BOLT 1/2" x 13 TPI x 4" MMC 98865A6351/2" x 4"829 ASTM A193 B8M Strain-Hrd 316SS Full Thrd

Carbon/Buna-N Flange Gasket Full Face, 1/2" PipeMMC 9772K31 1/2"230 1/2" Pipe, 27/32" ID, 3-1/2" OD

Carbon/Buna-N Flange Gasket Full Face, 1" PipeMMC 9772K331"331 1" Pipe, 1-5/16" ID, 4-1/4" OD

* MATERIAL CODE NUMBER OR IF MMC IS SPECIFIED, MCMASTER-CARR PART NUMBER

TYP4

B

B

AA

18 1915 29 TYP

17

33

TYP

30

15 30

1829 TYP19

10

3

31

35

8

31

21

8

31

18 1929 TYP

18 1929 TYP

18 1929 TYP

W4X13, 4" X 4" X 0.28" WEB SIZE, 20 FT 025-47990W4120 LIN "32 A36 SPEC MATERIAL

CC

METAL PLATE, 1/2" THK X 18" X 18", 316 SSMMC 8896K381/2" x 8"SQ233 CUT 1 PLATE TO 15 X 15

33

HEX CAP SCREW 316 SS,1/4"D x 28 TPI x 2-1/2" LMMC 92186A3271/4" x 2"436 -

HEX NUT 316 SS,1/4"D x 28 TPI x 3/16"HMMC 90257A0331/4" x 28 TPI837 USE 2 NUTS PER BOLT TO LOCK

TYP1/4

TYP1/4

TYP1/4

2

NOTES:

1.) ALL TUBING BEND RADII ARE SHOWN AS 3". MINUIMUM BEND RADIUS OF 3 TIMES O.D. IS ACCEPTABLE.

2.) SS TUBING AND FITTINGS ARE AN ACCEPTABLE EQUIVALENT FOR ALL RADIATION MONITOR SKID PIPING.

REFERENCE 90004 CLASS TS1 FOR MATERIAL SPECIFICATION.

3.) PARKER FITTINGS MAY BE SUBSTITUTED FOR SWAGELOCK.

NaI SCINTILLATION DETECTOR--125 REUSE PARTS FROM U1-RE2101

1" PIPE FLANGE 1" FNPT, 4-1/4" DIA MMC 44695K131"134 -

1" PIPE FLANGE 1" FNPT, 4-1/4" DIA MMC 44695K131"135 -

38 TYP

1/2" STUD BOLT WELDED TO CONCRETE PAN-1/2"1638 -

WITH 3" PROJ, NUT AND WASHER -

DETAIL1"=4"

3-

1.0"20

45

2.688" 2.688"

.875"

.562"

2.0"

6.0

"

4- .50 DIA HOLES DRILL .875 DEEP

LOCATED ON 5.00 B.C.

LEAD PLUG

DETAIL1"=4"

2-

.781"

5/64" (0.08")

SAW SLIT

(MIN.)

(2) EACH LIFTING HOLES

DRILLED THRU AND TAPPED

FOR 1/4-20 SCREWS

.195"

.254"

3.5

"

2.6

"

2.3

42

"

.313"

1.25"

.938"

LIQUID RADIATION MONITOR HOLDER

NOTE: CONSTRUCT FROM LEXAN (OR POLYCARBONATE

GENERAL TOLERANCE +/- 0.01"

1/4 -20 ALLEN SOCKET CAP SCREW

1-1/2" LONG 18-8 SS.

HOLE COUNTER BORE ON TOP AND

THREADED ON BOTTOM HALF

27

22

25

20

DETAILNO SCALE

1-

SEE

DETAIL 3

SEE

DETAIL 2

14

36

37

9/32" DIA. HOLE THRU

C 3/4" TUBE

SECTION1"=4"

B-

6

5

BY FIELD

1/4"

1/4"TYP 4 - 5/8" DIA HOLES

THRU, LOCATED ON

2-3/8" DIA B.C.

1 - 5/16 DIA HOLE THRU

1/4"

1/4"TYP

SECTION1"=4"

A-

4.0

"

8.0 "

32

6

1-1/2"

5/8" DRILL

SECTION1"=4"

C-

TYP of 4

8"

2-1/2"

8"

2-1

/2"

1-1/2"

2-1

/2"