psa 01 -07, 12/9/2015 page p-1of6 hdp-pr-fss-701, final status … · 2017. 8. 10. · psa 01 -07,...

Survey Area: Survey Unit:

PSA 01 -07, 12/9/2015 Page P-1of6

PSA 01

07

HDP-PR-FSS-701, Final Status Survey Plan Development (Revision 10) APPENDIX P-3

FSSPLAN

Description: Piping Survey Area Bldg. 230 W (STM-7)

Description: Storm Water piping W of Bldg. 230

Overview: The Survey Unit (SU) identified as PSA 01-07 (STM-7) has been prepared for Final Status Survey (FSS) by the Hematite Decommissioning Project (HOP). This appendi7 provides an overview of the proposed FSS implementation as well as general and specific instructions for the technicians responsible for performing the FSS.

• Data Quality Objectives

I. Personnel performing FSS duties meet the qualifications listed in HDP-PR-HP-102 Health Physics Technician Training and have received training and instruction commensurate with their duties. The RSO has approved all FSS personnel to perform work associated with their individual roles and responsibilities. Training records are documented in accordance with HDP-PR-GM-020, Training Material Development and Documentation of Training.

2. All HDP FSS procedures ("700 series") and the Final Status Survey Plan for Piping, HDP-PO-FSS-800 have been reviewed, revised, and validated in order to ensure performance of actual FSS work activities reflect the requirements detailed in the individual FSS Procedures and the HOP Decommissioning Plan.

3. Al l FSS instrumentation has undergone a receipt inspection by HOP QA personnel, is within current calibration, and is determined to be functioning within acceptable ranges based on initial set-up and daily source checks in accordance with HDP-PR-HP-411 , Radiological Instrumentation. HP technicians will confirm that environmental conditions (e.g. operating temperature range, no wet surfaces) are acceptable for use of field instrumentation.

• Location

PSA 01 -07 is designated Class 1 and is comprised of 73 feet (22.3 meters) of 15" diameter piping designated as STM-7 which is located to the W of Bldg. 230 (See Figure I). The piping runs from a surface inlet (MH-31) to MH-02 where it connects with additional storm water piping. The piping associated with PSA 01-07 is contained wirhin Land Survey Areas (LSA) LSA 05-04. The total surface area of PSA 01-07 is 27 m2

.

• Background

This PSA survey unit was not specifically described in the DP. However, poential survey units for piping were described in HDP-PO-FSS-800 " Final Status Survey Plan for Piping". PSA 01-07 is a portion of the Storm Water Drain System that collected run off water and directed the run off water to the site pond at outfall #3 . The Storm Water

Drain System is designated as Class I survey area and HDP Site View: See PSA Ot -07 Red (W of Bldg. 230) the pulic supplied water systems which are designated as Class 3. Prior to final status survey the piping was washed out to remove any debris and sediment, a visual inspection was performed to ensure the piping was ready for FSS. The potential e7ists for residual radioactivity within the piping to represent a significant fraction of the Structures, Systems, and Components (SSC) DCGL of 18,925 dpm/ 100 cm2

.

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HDP-PR-FSS-701 , Final Status Survey Plan Development (Revision I O) APPENDIX P-3

FSS PLAN

PSA 01-07 has not yet undergone a full final remedial action support survey. however preliminary surveys indicate that it is simi lar in nature to the condition of PSA 02-0 I (SA - I), so the FSS results collected from PSA 02-0 I wil I be used for the purposes of developing a FSS plan for PSA 01-07. PSA 02-0 I underwent FSS during ovember, 20 IS, including a scan of the bonom section of the accessible piping and IS systematic total surface contamination er C) measurements. Swipe samples were collected at the accessible openings of the piping system.

All direct measurement activities collected during the FSS of PSA 02-0 I were well below the applicable SSC DCGL (with a ma7imum measurement at 9.6% of the DCGL) and removable activity was less than I % of the measured total activity results. This data supports the initial DP Classification of Class I for PSA 02-0 I, and is considered similar in nature to the current status of PSA 01-07.

The Isolation and Control (I & C) postings (signage) have been placed on each access grating or manhole for this section of piping.

• Criteria

All FSS analytical resu lts for measurements/samples collected within PSA 01-02 will be evaluated against the 1 IDP SSC Gross Activity DCGL of 18,925 dpm II 00 cm2

•

Radionuclide Structural Surfaces (dpm I 100 cm2)

Total Gross Activity 18,925

. . Table adapted from HDP FSS Procedure HDP-PR-FSS-701, hna/ Status S 11M!)' Plan Dtl'(!/opmem, Rev1s1on 7, June 20 t 5.

• lmplementation

PSA 01-07 will undergo scan of the bottom section of the piping of all accessible surfaces using a Ludlum 43-68 gas flow proportional detector. Th is scan survey will be perfonned remotely with the probe mounted on a remote controlled vehicle that can be moved through the piping at the appropriate speed.

Static biased measurements will be collected at locations where remediation at locations that e7ceed the investigation action level identified during the scan surveys and at any areas designated in the survey instructions.

Based on a statistical evaluation of the RASS dataset. a minimum of eleven ( 11) measurement locations were calculated for PSA 01-07 and 15 locations were designed. As the BSA is a Class I survey unit, the 15 measurement locations were selected based on a random-sta11 point and then evenly spaced within the section of piping. Direct measurement locations for the e7posed surfaces are specified in the distance in feet from the starting point of the piping system specified in the sun ey figure and on Appendi7 P-4.

Cloth smears will be swiped with moderate pressure over an area of I 00 cm2 (a 4" by 4 .. square) in an $shaped pattern in order to assess removable activity at each acce sible opening.

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HDP-PR-FSS-701 , Final Status Survey Plan Development (Revision 10) APPENDIX P-3

FSSPLAN

Per HDP-PR-FSS-703 , QC replicate survey requirements for structural survey units require that 5% of all C lass I, Class 2, and Class 3 SSC Survey Units are randomly selected to undergo a replicate survey of the entire SU area. The repl icate survey is to be performed by an I IP technician other than the one who performed the initial survey using similar instrumentation. PSA 01-07 is not one of the randomly selected Class 1 Survey Units for which a replicate survey has been required.

FSS IMPLEMENT A TI ON SUMMARY TABLE

Portable Instrument Scannine:: Scan Coverage Bottom portions of PSA 01-07 Scan MDC l ,868 dpm I I 00 cmi (Ludlum 43-68) Investigation Action Level (IAL): general area 9,463 dpm I 100 ctn- (50% ofrhe DCGL)

Total Surface Contamination (TSC) Measurements: Surface Minimum Number of Comments

Measurements A total of 11 TSC measurements

Bottom surface of piping 15 locations have been systematically designed from a random start point.

Removable Activity Locations:

Using moderate pressure swipe a cloth smear over the surface (e.g. e7terior wall, roof, window, etc.) in an S-shaped pattern within an appro7imately 4" by 4" bo7 at each access point to the piping system. More than one smear may be collected at each access point.

Biased Measurement Locations: Perform static biased measurements at locations that e7ceed the CAL and at any location where visual insoection has identified cracks or breaks in the oioing_

Instrumentation

Ludlum 2360 w ith 43 -68 scintillation detector; Used for scanning and to obtain static (TSC) measurements.

Tennelec or Ludlum 3030 with 43- 10-1 scintillation Used for counting o f swipe (smear) detector samples.

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FSSPLAN

General Instructions:

l . Summarize daily work activities on the log sheets provided in Appendi7 P-6 (from procedure HDP-PRFSS-701, Final Status Survey Plan Development). Provide a description of work area conditions, measurements collected (including swipes for removable activity) and the status of instrument scan surveys for every shift that involves work in this survey unit. Document the surveyor name and instrumentation used for each structural surface survey on Appendi7 A-I (from procedure HDP-PR-FSS-712, Final Status Surveys of Structures, Systems, and Components) and on Appendi7 P-6 for repo11ing traceability. In the event that a situation arises where the survey instructions cannot be followed as written, stop work and contact the FSS Supervisor for resolution. Al l changes to the survey instructions shall be approved by the RSO before continuing work and be documented in the FSS Field Log.

2. In accordance with HDP-PR-FSS-70 I, (Sec. 8.4.2), documentation of activities performed, equipment used, and potential safety hazards that may be encountered during the performance of characterization activities (along with associated controls) will be documented using the FSS Dai ly Task Briefing log sheet.

3. Confirm that isolation controls (I & C) are in effect before FSS commences.

4. In accordance with HDP-PR-HP-411 , Radiological Instrumentation, confirm that FSS instrumentation is within the current calibration period, has been daily source checked, and environmental conditions are acceptable for field use as per the manufacturer's recommended operating parameters. As required by HDP-PR-HP-415, Operation of !he Ludlum 2350 or 2360 for Final Status Survey, calculation of weighted efficiencies for each survey detector used during FSS of PSA 01-07 will be performed prior to field use.

5. Structural FSS are to be performed in accordance with HDP-PR-FSS-712, Final Sratus Surveys of Structures, Systems, and Components, using instrumentation that has been documented and prepared per the requirements of HDP-PR-HP-411 and HDP-PR-HP-415. PSA 01-07 is a Class l Survey Unit. A total of 15 systematic TSC measurements will be taken across the entire survey unit. the survey unit will be scanned by remote access on the bottom surfaces of the piping using a Ludlum 43-68 gas flow proportional detector

6. A scanning survey of the accessible bottom surfaces of the piping will be performed using a Ludlum 43-68 gas flow propo11ional detector. Move the cart holding the probe across the bottom surface of the piping at a speed between I and 2 inches per second while ensuring the probe is as close (nominally W', but not to e7ceed Yi") to the surface as conditions allow. Due to the large diameter of the pipe the curvature of the pipe bottom is not e7pected to cause counting geometry issues, however if it is observed that the probe e7ceeds the ma7imum Y2'' distance, an adjusted efficiency will be calculated using the Source to Detector Distance Effects specified in Appendi7 A of HDP-PO-FSS-800. The scanning surveys will cover the bottom poriions of the piping in accessible areas within the entire of interest as indicated in the table above. Notify the FSS Supervisor of any areas, conditions or constraints where surveying (or subsequent TSC) may not be possible. Document the conditions and any resolutions in the FSS Field Log.

7. Perform static biased measurements at any locations that e7ceed the CAL or are specified in the specific survey instructions. Consult FSS supervision for guidance on the amount and specific locations of biased measurements.

8. Static TSC measurements made with the scaler-ratemeter (Ludlum 2360) coupled to the Ludlum 43-68 detector will be logged electronically. Results of the pip ing survey will be documented on form Appendi7 A- I from HDP-PR-FSS-712.

9. A map or diagram of the piping survey area will be attached to the survey instruction . Direct measurement locations are given in distance in feet from the east end of the pipe.

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FSS PLAN

I 0. Swipe samples will be collected at each accessible opening of the pipe. All swipe samples will be analyzed in the onsite laboratory using the Tennelec or the Ludlum 3030 swipe counters for gross alpha/gross beta activity.

1 I. No volumetric sampling is planned as part of the FSS effort for PSA 01-07.

Specific Instructions:

NOTE: Unless otherwise indicated, the performance of these sp;:cific instructions is the responsibility of the HP Technician.

Before Beginning Work

1. Rad. E ngineer /HP Technician: Perform a dai ly task-spcciric briefing; documenting the attendants, planned work activities, anticipated hazards, and controls on the FSS Daily Task Briefing log sheet.

2. Rad. Engineer /HP T echnician: Verify that survey instrumentation is within the current calibration period by checking the calibration due date for each piece of instrumentation used for FSS. Perfonn daily preand post-survey daily source checks for handheld survey instrumentation in accordance \.\>ith HDP-PR-HP-411. Confirm that environmental conditions in which the survey will be perfom1ed are ""'ithin the manu facturer's recommended operating range (e.g. temperature between -4° F to 122° F).

3. Rad Engineer/HP Technician: Prior to survey. collect three background measurements in (alpha - beta) scaler mode at waist level per Step 8.4.1 of HDP-PR-FSS-712. Use the average of the three readings as the daily field background. The purpose of these measurements is to determine the ambient background count rate and identify a previously undetected source term within or near the survey area.

4. Rad. Engineer/HP Technician: Prior to survey. inspect the work area to ensure that the surface is clean and dry and ensure the visual inspection has been completed.

Structural Surveys (Scanning, Total Surface Contamination Direct Measurements, Swipes)

I. It is not necessary 10 establish a .. material background" for the surface being surveyed, since all measurements will be compared to the gross activity SSC DCGL of 18,925 dpm I 100 cm2

.

2. Perform a scan of the piping surface maintain ing the probe as close to the surface as conditions allow (nominally 1/4", but not to e7ceed l/2") moving the probe at a rate between I and 2 inches per second, in accordance with l-IOP-PR-FSS-712 and HOP-PR-HP-4 15.

a. Look and/or listen for elevated count rates and then pause to determine locations that e7hibit anomalous readings (e.g., count rates that e7ceed the IAL for this unit).

b. Document the location(s) e7hibiting anomalous readings to facilitate possible future investigations by annotating the distance in the pipe and relative position (e.g. bottom).

3. At each location where anomalous readings occur. perform a more detailed point survey of the area. Pause and place the survey probe in the area of the readings to define and record the total count rate associated with the area of interest on the Field Log. If residual radioactivity e7ceeding the static MDA is detected at any special features of concern (cracks, crevices, seams. joints, small holes, penetrations), contact FSS supervision for guidance. Adjustments in instrument efficiency or volumetric sampling may be necessary.

4. Collect static count measurements at the 15 systematically designed locations on contacl with the structural surface for a period of I minute.

5. At each accessible opening in the pipe, swipe a cloth smear over the surface (e.g. interior wall, ceiling, etc.) with moderate pressure in an S-shaped pattern within an appro7imately 4'' by 4"' bo7 (I 00 cm2

).

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HDP-PR-FSS-70 I , F inal Status Survey Plan Developmen t (Revision I 0) APPENDIX P-3

FSS PLAN

6 . Record all scan, direct measurements, and swipe data on Form Appendi7 A- 1 and subm it to the FSS Supervisor for review.

Volumetric Sampling

l. No volumetric sampling is planned as patt of the FSS of PSA 0 1-07.

P repared by:

Approved by (RSO):

Qua I ity Record

Greg Peterschmidt (Print Name) (Sigf]lture)

W. Clark Evers (Print Name) (Signature)

r 2 (er/ 1r(Date)

IL/1//) (Date)

Hematite Decommissioning

Project

Procedure: HDP-PR-FSS-70 l, Final Status Survey Plan Development

Revision: I 0

APPENDIX P-2

Appendix P-2, Page I of 8

FINAL ST A TUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

Survey Area PSA 0 I Description: Piping Survey Area Bldg 230 W (STM-7)

Survey Unit 07 Description: Storm Water piping W of Bldg 230

1. Survey Unit Isolation & Control

Has the Survey Unit been properl y isolated and/or controlled (indicated by marking the area with posting the appropriate signage) as required by HDP-PR-HP-602, Data Package Development and Isolation and Control Measures to Support Final Status Survey?

Yes~ o D

(If "No·', then discontinue survey design until area turnover requirements have been met).

Signs placed on piping access points.

2. Assessment of Characterization/Remedial Action Support Surveys (RASS)

a. Derive & List the Basic Statistical Data for the TSC measurements in the characterization/RASS Survey Population.

#of Measurements Taken:

TSC Measurements

{dpm/100cm2)

Minimum 0

Maximum 1811

Mean 928

Median 1133

Standard Deviation 572.5

b. Is the characterization/RASS Survey Data sufficient to support FSS Design? Yes IZI No D

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Appendix P-2. Page 2of8

APPENDIX P-2 FINAL ST A T US SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR

STRUCTURE SURVEY UNITS

(If '"No'', then terminate survey design and perform additional characterization or remediation and repeat the planning process.

3. Survey Unit Classification

Write a short description of the survey unit based on historica l use and remedial activities:

PSA 01-07 is comprised of 73 feet (22.3 meters) of 15·· diameter piping designated as STM-7 which is located to the W of Bldg. 230. The piping runs from a surface inlet (MH-31) to MH-02 where it connects with additional storm water piping. The total surface area of PSA 01-07 is approximately 27 m2. It is classified as a MARSSIM Class I survey unit.

Initial Classification per DP Ch 14: Survey Unit Area: 27 m2

a. Has the Survey Unit Classification changed from the Initial Classification for the Survey Unit as described in DP Ch. 14?

Yes D No iZI

(If "Yes", then include a copy of Appendix P-5, Survey Unit Class(fication Change Form with the FSSP).

b. Is the Survey Unit area less than the maximum size for the Classification? Yes [gj No 0 (I f "No", then terminate survey design and evaluate dividing the survey unit into multiple survey units).

4. Area Remediation

Select the appropriate remediation status for the Survey Uni t.

D o Remediation D System Removal

IZl Structural or System Decontamination D Structural Removal

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Procedure: HDP-PR-FSS-701, Final Status Survey Plan Development

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APPENDIX P-2

Appendix P-2, Page 3 of 8

FINAL STATUS SURVEY SAMPLING PLAN DEVE LOPMENT CHECKLIST FOR ST RUCT URE SURVEY UNITS

5. Types of Samples and Measurements fo r FSS

Select the appropriate types of samples and measurements for FSS for this Survey Unit.

Statistical Sample Population

rgj Total Surface Contamination

(TSC) measurements.

rgj Swipe Samples for Loose

Surface Contamination.

D Volumetric Material

Samples

D Other

Scan Measurements

D 100% Scan Coverage of Exposed

Surfaces.

rgj See note % Scan Coverage of

Exposed Surfaces.

Note: Scanning will be performed remotely on the bottom portions of the piping as these are the most likely to

be contaminated and at any locations identified during the visual inspection as specified in the special instructions

in the FSS Plan.

6. Derived Concentration Guideline Levels (DCGL)

The Adjusted Gross DCGL for structural surfaces at HDP is 18,925 dpm/100cni2 per Table 14-7 of DP Ch. 14. This Table has been reproduced as Appendix C of HDP-PR-FSS-701.

7. Determine the Number of Samples in the Statistical Survey Population

a. Set the Lower Bound of the Grey Region (LBGR) at the mean activity for the characterization/RASS survey data set from Step 2.

ActivityMean = 928 dpm/100cm2 =Lower Bound of the Grey Region (LBGR)

b. Standard Deviation for the characterization/RASS survey data set from Step 2.

(} = 572.5

c. Define the Decision Errors.

Type I Error = 0.05 Type II Error = 0.10

Note: The Type II Error is set at 0.10 initially but it may be adjusted with RSO concurrence.

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APPENDIX P-2 FINAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CH ECKLIST FOR


d. Dete1111ine the Relative Shift using the equation from Step 8.3.4c of IIDP-PR-FSS-701.

Relative Shift = 31.4

e. Is the Relative Shift between 1 and 3? Yes D

(If ··Yes'', then continue to Step 7f, if "No", then proceed to the next step).

0 [gl

If the variability in the data set is acceptable, then adjust the LBGR as necessary in order to achieve a Relative Shift between I and 3. In order to accomplish this, the LBGR may be set as low as the MDC of the instrument that will be used for the measurements.

Adjusted LBGR = 17,207

Adjusted Relative Shift= l l

f. Determine the Number of Samples (N) required corresponding to the Type I error, Type II Enor and the Relative Shift from Appendix E of HDP-PR-FSS-70 l.

Number of Samples (N) = 11

8. Determine the Scan MDC

a. Identify the Radiological Instrument that will be used for scanning.

D Ludlum 43-89 Scintillation Detector Other Ludlum 43-68 Gas Flow Proportional Detector

b. Determine the Scan MDC for the selected instrument using the equation from Step 8.3.5b of HDPPR-FSS-70 l.

MDCscan = 1,868 dpm/100cm2

9. Adjust the Statistical Sample Population Size (N) for Scan MDC

a. Is the MDCscan for the selected instrument less than the Adjusted Gross DCGL? Yes l:g] No D

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APPENDIX P-2 FINAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR


b. If the answer to the question in Step 9a is "Yes" or the survey unit is either Class 2 or Class 3, then proceed to Step 10. If the answer to the question in Step 9a is ·· o" and the survey unit is Class 1, then proceed to the next step.

c. Divide the total area of the survey unit by the Number of Samples (N) calculated in Step 7f to calculate the area bounded by the statistical sample population (Asu).

Area Bounded by the statistical sample population (Asu) = NIA m2

d. Select an Area Factor (AF) from Appendix I of HDP-PR-FSS-701 that corresponds to the area bounded by the statistical sample population (Asu).

AF for the Bounded Area (Asu) = NA

e. Multiply the Adjusted Gross DCGL Area Factor (AF) to derive an Adjusted Gross DCGLEMC·

Adjusted Gross DCGLEMC = NA dpm/100cm2

f. ls the MDCscan for the selected instrument less than the Adjusted Gross DCGLEMc?

Yes D No D NA~

g. If the answer to the question above is "Yes", then continue to Step 10. If the answer to the question above is "No", then proceed to the next step.

h. Determine a new AF (AFEMC) cotTesponding to the MDCscan for the selected instrument by dividing the MDCscan by the Adjusted Gross DCGLw.

AF EMC corresponding to MDCscan = NA

1. Find the Area (A') that cotTesponds to the Area Factor (AFEMc).

A' corresponding to AF EMC = A

Note: The Area Factors for structures are found in Appendix I of HDP-PR-FSS-70 I.

J· Determine an Adjusted Number of Samples CNEMc) for the statistical sample population size that corresponds to the bounded AEMC using the equation from Step 8.3.6h ofHDP-PR-FSS-701.

NEMc corresponding to A' = NA

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Procedure: HDP-PR-FSS-701 , Final Status Survey Plan Development

Revision: 10

APPENDIX P-2


FINAL ST A TVS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

N calcu lated in Step 7f = NA

k. Is NEMc> the value ofN determined in Step 7f? Yes D No D NA~

(lf ·'Yes", then use the larger NEMc value as the statistical sample population size. If no, then use the value of

N that was calculated in Step 7f as the statistical sample population size).

10. Determine the Grid Spacing

a. ls the Survey Unit a Class 3 Survey Unit? Yes D No~

(lf "Yes", then continue to Step 11, if"No", then proceed to the next step).

b. Determine Grid Spacing (L) using the equation from Step 8.3.7b of HDP-PR-FSS-701. For piping systems determine the spacing in accordance with Step 8.3.7c ofHDP-PR-FSS-701

Grid Spacing (L) for Survey Unit = 1.49* m

* Minimum number of I l samples calculated, 15 systematic samples were designed.

11. Generate a Survey Map

a. Assign a unique identification number to each measurement in the statistical sample population using the guidance and direction provided in Appendix M of HDP-PR-FSS-701 .

b. Generate a graphic representation of the Survey Unit with dimensions and boundaries corresponding to an established reference coordinate system in accordance with Step 8.3.8 of HDP-PR-FSS-701.

c. Using the reference coordinate system, ascertain coordinates for each sample location.

d. Designate measurement locations, and location coordinates on Appendix P-4, FSS Sample & Measurement Locations & Coordinates and attach a copy of that form to the FSSP.

e. Attach a copy of the developed Survey Map with sample locations to the FSSP.

12. Biased Measurements

a. Designate if any biased measurements wi ll be taken at the discretion of the HP Staff designing the survey and the basis for taking them. Necessary biased samples wi ll be explained on Appendix P-3, FSS Sampling Plan.

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APPENDIX P-2 FINAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR


Note: Biased measurements are not included as part of the statistical sample population. Rather, they are treated as pre-emptive investigation measurements.

b. Using the reference coordinate system, ascertain coordinates for each biased measurement location.

c. Designate biased measurement locations, and location coordinates on attached Appendix P-4, FSS Sample & Measurement Locations & Coordinates.

13. Scan Coverage

a. The Survey Unit is: ~ Class I D Class 2 D Class 3

b. Based on the Survey U nit Classification, the scan coverage in this Survey Unit is;

D I 00% Scan Coverage of exposed su rface See Note % Scan Coverage of exposed surface

Note: Scanning will be performed remotely on the bottom portions of the piping as these are the most likely to be

contaminated and at any locations identified during the visual inspection as specified in the special instructions in the FSS Plan.

14. Investigation Levels

a. The Survey Unit is: D Class 3

I) Scan Investigation Levels are set at the most limiting between the Adjusted Gross DCGLw = 18,925

dpm/ l 00cm2 or the MDCscan for the instrument used.

2) TSC Measurement Investigation Levels are set at 50% of the Adjusted Gross DCGLw = 9,462 dpm/ l 00cm2

•

b. The Survey Unit is: D Class 2

I) Scan Investigation Levels are set at the most limiting between the Adjusted Gross DCGLw = 18,925

dpm/ l 00cm2 or the MDCscan for the instrument used.

2) TSC Measurement Jnvestigation Levels are set at the Adjusted Gross DCGLw = 18,925 dpm/ 100cm2.

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APPENDIX P-2

Revision: I 0 Appendix P-2, Page 8of8

FINAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

c. The Survey Unit is: [8l Class I

I) Scan Investigation Levels (general area) are set at 50% of the Adjusted 9,463 dpm/100cm2

Gross DCG Lw =

2) TSC Measurement Investigation Levels are set at the Adjusted Gross DCGLw = 18,925 dpm/J 00cm2.

15. FSSP Development Check.list Approval

Prepared by: Greg Peterschmidt

(Print Narne)

Peer Reviewed by: Scott Zoller

(Print Narnc)

Approved by (RSO): W. Clark Evers

(Print Narne)

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Procedure: HDP-PR-FSS-70 I, Final Status Survey Plan Development

Hemati te Decommiss ioning

Project ' Revision: JO Appendix P-4, Page I of 1

I

APPENDI X P-4 FSS SAMPLE & M EASUREM ENT LOCATIONS & COORDINATES

Survey Area: PSA 0 1 Description : Pieing Survey Area Bid 230 W (STM-7) Survey Unit: 07 Description : Storm Water piping W of Bid 230 Survey Type: FSS Classification : Class I

Measurement or Sample Surface or Type

Sta11 * End* Feet SE from MH Feet East Remarks I ID CSM Elevation Elevation 31

otcs

PO 1-07-0 I -S-O-S-00 0 s NA NA 2 NIA STM-7 lnt. Bottom PO 1-07-02-S-O-S-OO 0 s NA NA 7 NIA STM-7 Int. Bottom PO 1-07-03-S-O-S-OO 0 s NA NA 12 NIA STM-7 Int. Bottom PO 1-07-04-S-O-S-OO 0 s NA NA 17 NIA STM-7 Int. Bottom PO 1-07-05-S-O-S-OO 0 s NA NA 22 NIA STM-7 Int. Bottom PO 1-07-06-S-O-S-OO 0 s NA NA 27 NIA STM-7 Int. Boliom PO 1-07-07-S-0 -S-OO 0 s NA NA 32 NIA STM-7 In t. Bottom PO 1-07-08-S-0 -S-OO 0 s NA NA 37 NIA STM-7 Int. Bottom PO 1-07-09-S-O-S-OO 0 s NA NA 42 NIA STM-7 Int. Bottom PO 1-07-1 O-S-O-S-00 0 s NA NA 47 NIA STM-7 In t. Bottom PO 1-07-11-S-O-S-OO 0 s NA NA 52 NIA STM-7 Int. Bottom PO 1-07-1 2-S-0 -S-OO 0 s NA NA 57 NIA STM-7 Int. Bottom PO 1-07-13-S-O-S-OO 0 s NA NA 62 NIA STM-7 Int. Bottom PO 1-07-14-S-O-S-OO 0 s NA NA 67 NIA STM-7 Int. Bottom PO 1-07- 15-S-O-S-00 0 s NA NA 72 NIA STM-7 Int. Bouom

*Elevations arc in feet above mean sea level. **Missouri - East State Plane Coordinates [Nonh American Datum (NAD) 1983) (Open Land Area): OR Distance in feet from lower left comer of the surface (Structures); each surface has it's own (X,Y) = (0,0): OR For piping the distance from the beginning of the survey unit. Surface: Floor = F: Wall = W: Ceiling = C; Roof= R: Other=O CSM: Three-Layer (Surface-Root-Deep) or Unifonn h"ypc: Systematic = S. Biased = B; QC =Q; Investigation= I

Quali ty Record

Di stance

Survey Unit Sample ID from MH-31

toward MH-02

PSA-01-07 POl-07-01-S-O-S-OO 2 ft .

PSA-01-07 POl-07-02-S-O-S-OO 7 ft.

PSA-01-07 POl-07-03-S-O-S-OO 12 ft.

PSA-01-07 POl-07-04-S-O-S-OO 17ft.

PSA-01-07 POl-07-05-S-O-S-OO 22 ft. 1;)

~

PSA-01-07 POl-07-06-S-O-S-OO 27ft. .,; ;:::; 0 N

PSA-01-07 POl-07-07-S-O-S-OO 32 ft . d .. PSA-01-07 POl-07-08-S-O-S-OO 37ft.

~ ~ ~

PSA-01-07 POl-07-09-S-O-S-OO 42 ft . :::J

<fl OI c

PSA-01-07 POl-07-10-S-O-S-OO 47ft. a a:

I .....

P5A-01-07 POl-07-11-5-0 -S-OO 52 ft . ~· 0

PSA-01-07 POl-07-12-5-0 -5-00 57ft. ce' <fl g.

PSA-01-07 POl-07-13-S-O-S-OO 62 ft . ~ ~ w

PSA-01-07 POl-07-14-S-O-S-OO 67ft. 0 t! QI

PSA-01-07 POl-07-15-S-O-S-OO 72 ft . i 9 "' y ()

g; .. ~ 0 <fl

§ w

MH-31

06-02

05poQ4

MH-02

04-01

LEGEND:

• TM - 7 Pipe Samples

TM-7

Driveway

~ Fence

Rcquc>1cd 8) C hers

Documenl Reason HDP-!::\G 13-\llP-009

PSA-01-07 Piping Figure

Hematite Decommissioning Project Jefferson County

Hematite, MO

Prepared ll)' Rev: Si1e Daie: SDJ 0 11\17 12-03-15

psa 01 -07, 12/9/2015 page p-1of6 hdp-pr-fss-701, final status … · 2017. 8. 10. · psa 01 -07,...

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