Survey Area: Su rvey Unit:

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HDP-PR-FSS-701, F inal Status Survey Pla n Development (Revision 9) APPENDIX P-3

FSS P LAN

Description : Piping Survey Area Bldg 110 NW (STM-1)

Description: Storm Water piping NW of Bldg 110

Overview: The Survey Unit (SU) identified as PSA 01-01 (STM-1) has been prepared for Final Status Survey (FSS) by the Hematite Decommissioning Project (HDP). This appendix 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

1. Personnel performing FSS duties meet the qualifications listed in HDP-PR-H.P-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 DocumentaNon 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 HDP Decommissioning Plan.

3. All FSS instrumentation has undergone a receipt inspection by HDP 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 confinn that environmental conditions (e.g. operating temperature range, no wet surfaces) are acceptable for use of field instrumentation.

• Location

PS/\ 01 -0 l is designated C lass 1 and is comprised of 137 feet of 12" diameter piping and 76 feet of 15" piping designated as STM-1 which is located to the North/Northwest of Bldg 110 (See Figure l ). The piping runs from a surface inlet (MH-19) to the W of bldg. l l 0 and continues approximately 137 feet (41.8 meters) where it turns at a 90 degree angle (MH-07) to the south/southeast of building 110 for 76 feet (23.2 meters) were it intersects with STM-2 piping (MH-25). The piping associated with PSA 01-0 l is contained within Land Survey Areas (LSA) LSA 07-01 , and LSA 06-0 1. The total surface area of PSA 0 l -

01 is 68 m2•

• Background HOP Satellite Site View: See PSA 01-01 Red (NWof Bldg

11 0)

This PSA survey unit was not specifically described in the DP. However, potential survey units for piping were described in HDP-PO-FSS-800 "Final Status Survey Plan for Piping". PSA 01-01 is a

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HDP-PR-FSS-701 , Final Status Survey Plan Development (R evision 9) APPENDIX P-3

FSS PLAN

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 l survey area and the put ic 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, and a visual inspection was performed to ensure the piping was ready for FSS. The potential exists for residua l radioactivity within the piping to represent a significant fraction of the St ructures, Systems, and Components (SSC) DCGL of 18,925 dpm/l 00 cm2

•

PSA 01-0 l has not yet undergone a full final remedial action support survey, however preliminary surveys indicate that it is similar in nature to the condition of PSA 02-01 (SAN-1), so the FSS results collected from PSA 02-0 l will be used for the purposes of developing a FSS plan for PSA 01-01. PSA 02-01 underwent. FSS during November, 2015, including a scan of the bottom section of the accessible piping and 15 systematic total surface contamination (TSC) 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 l were well below the applicable SSC DCGL (with a maximum measurement at 9.6% of the DCGL) and removable activity was less than l % 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 -0 I.

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

• Criteria

All FSS analytical results for measurements/samples collected within PSA 01-0 I wi ll be evaluated against the HOP 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 . Final Status Survey Plan Development. Rev1s1on 7, June 20 IS .

• [mplementation

PSA 01-0 I will undergo scan of the bottom section of the piping of all accessible surfaces using a Ludlum 43-68 gas flow proportional detector. This scan survey will be perfo1med remotely with the probe mounted on a remote or manually controlled vehicle that can be moved through the piping at the appropr iate speed.

Static biased measurements will be collected at locations where remediation at locations that exceed 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 01-01 and 15 locations were designed. As the BSA is a Class 1 survey unit, the 15 measurement locations were selected based on a random-start point and then evenly spaced within the section of piping. Direct measurement locations for the exposed surfaces are specified in the distance in feet from the starting point of the piping system which for the purpose of this survey will be considered MH-07.

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C loth smears will be swiped with moderate pressure over an area of lOO cm ' (a 4" by 4 .. square) in an S­shoped pattern in order to assess removable activity at each accessible opening.

Per HOP-PR-FSS-703. QC replicate survey requirements for structural survey units require that 5% of all Class L C lass 2. and Class 3 SSC Survey Units are randomly selected to undergo a replicate survey of the entire SU area. The replicate survey is to be performed by an HP technician other than the one who performed the initial survey using similar instrumentation. PSA 01-0 I is not one of the randomly selected Class I Survey Units for which a replicate survey has been required.

FSS JMPLEMENTATION SUMMARY TABLE

Portable Instrument Scannine:: Scan Coverage Bottom portions of PSA 01-0 I Scan MDC 1,868 dpm I I 00 cm' (Ludlum 43-68) Investigation Action Level (lA L): general area 9,463dpm I 100 cm' (50% of the DCGL)

TotaJ 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 c loth smear over the surface (e.g. exterior wall, root~ window. etc.) in an $-shaped pattern within an approximately 4'' by 4" box 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 exceed the IAL and at any location where visual inspection has identified cracks or breaks in the piping.

Instrumentation

Ludlum 2360 with 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 of swipe (smear) detector samples.

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General Instructions:

I. Summarize daily work activities on the log sheets provided in Appendix 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 Appendix A-1 (from procedure HDP-PR-FSS-712, Final Status Surveys of Structures, Systems, and Components) and on Appendix P-6 for repo1ting traceabil ity. Jn the event that a situation arises where the survey instructions cannot be followed as written, stop work and contact the FSS Supervisor for resolution. All 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-701, (Sec. 8.4.2), documentation of activities performed, equipment used, and potentia l safety hazards that may be encountered during the perfonnance of characterization activities (along with associated controls) will be documented using the FSS Daily 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 requ ired by HDP-PR-HP-415, Operation of the Ludlum 2350 or 2360 for Final Status Survey, calculation of weighted efficiencies for each survey detector used during FSS of PSA 01 -01 will be performed prior to field use.

5. Structural FSS are to be performed in accordance with HDP-PR-FSS-712, Final Status Surveys of Structures, Systems, and Components, using instrumentation that has been documented and prepared per the requirements ofHDP-PR-HP-411 and HDP-PR-HP-415. PSA 01 -01 is a Class I Survey Unit. A total of 15 systematic T SC measurements will be taken across the entire survey unit. the survey unit will be scanned by remote access on the bottom surfaces of the pip ing us ing 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 proportional detector. Move the cart holding the probe across the bottom surface of the piping at a speed between I and 2 inches per second whi le ensuring the probe is as close to the surface as conditions allow (nominally 1.1.i", but not to exceed W'). Due to the large diameter of the pipe the curvature of the pipe bottom is not expected to cause counting geometry issues, however if it is observed that the probe exceeds the maxim um W' distance, an adjusted efficiency wi ll be calculated using the Source to Detector Distance Effects specified in Appendix A of HDP-PO-FSS-800. The scanning surveys will cover the bottom portions 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 exceed the IAL or are specified in the specific survey instructions. Consult FSS supervision for gu idance 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 piping survey will be documented on form Appendix A- I from HDP-PR-FSS-712.

9. A map or diagram of the piping survey area w ill be attached to the survey instruction. Direct measurement locations are given in distance in feet from the starting point of the pipe, or reference point as specified 011

the piping diagram.

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I 0. Swipe samples wilt 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.

11. No vo lumetric sampling is planned as part of the FSS effort for PSA 01-0 I.

Specific Instructions:

NOTE: Unless otherwise indicated. the performance of these specific instructions is the responsibility of the I IP Technician.

Before Beginning Work

1. Rad. Engineer/HP Technician: Perform a daily task-specific briefing; documenting the attendants, planned work activities. anticipated hazards, and controls on the FSS Daily Task Briefing log sheet.

2. Rad. E ngineer/HP Technician: Verify that survey instrumentation is within the current calibration period by checking the calibration due date for each piece of instrumentation used for FSS. Perform daily pre­and post-survey dai ly source checks for handheld survey instrumentation in accordance with HDP-PR-HP-4 11 . Confirm that environmental conditions in which the survey will be performed are within the manufacturer'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-7 12. 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. Enginee r/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 Su rveys (Scanning, Total Surface Contamination Direct Measurements, Swipes)

1. It is not necessary to establish a "material background'" for the surface being surveyed, since all measurements wil I be compared to the gross activity SSC DCGL of 18,925 dpm I I 00 cm2

.

2. Perfonn a scan of the piping surface maintaining the probe as close to the surface as conditions allow (nominally I /4", but not to exceed 1/2'') moving the probe at a rate between I and 2 inches per second. in accordance with HDP-PR-FSS-712 and HDP-PR-HP-415.

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

b. Document the localion(s) exhibiting 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, perfonn a more detailed point survey of the area. Pause and place the surve) 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 exceeding the static MDA b detected at any special features of concern (cracks, crevices, seams, joints, sma l I holes, penetrations). conract FSS supervision for guidance. Adjustments in instrument efficiency or volumetric sampling ma) be necessary.

4. Collect static count measurements al the 15 systematically designed locations on contact \.\ith 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 approximately 4'" by 4" box ( 100 cm\

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HDP-PR-FSS-701, Final Status Survey Plan Development (Revision 9) APPENDIX P-3

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

Volumetric Sampling

l. No volumetric sampling is planned as pa1t of the FSS of PSA 01-0 I.

Prepared by: Greg Peterschmidt ~ Ac:::: rf /1 -;_/1\

(Signa275 (Print Name) (Date)

Peer Reviewed by: Scott Zoller >~- 4&-(Print Name) (D te)

Approved by !J~ 11/;i/;J (RSO): W. Clark Evers (Print Name) (Signature) (Date)

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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 1 of 8

FINAL ST A TUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCT URE SURVEY UNITS

Survey Area PSA 01 Description : Piping Survey Area Bldg 11 0 NW (STM -1)

Survey Unit 0 1 Description: Storm Water piping NW of Bldg I I 0

l. Survey Unit Isolation & Control

Has the Survey Unit been properly iso lated 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 F;nal 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 C ha racterization/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. ls the characterization/ RASS Survey Data sufficient to support FSS Design? Yes~ No D

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

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(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 historical use and remedial activities:

PSA 01-0 I runs from a surface inlet (M H-19) to the NW of bldg. 110 and continues approximately 137 feet ( 4 I .8 meters) where it tums at a 90 degree angle (MH-07) to the south/southeast of building 110 for 76 feet (23.2 meters) were it intersects with STM-2 piping (M 11-25). The total surface area of PSA 01-0 I is approximately 68.0 m2

• It is classified as a MARSSIM Class I survey unit.

Initial Classification per DP Ch 14: Survey Unit Area:

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

Yes 0 No~

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

b. rs the Survey Unit area less than the maximum s ize for the Classification? Yes~ No D ( ff '"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 Unit.

0 No Remediation 0 System Removal

~ Structural or System Decontamination 0 Structural Removal

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FINAL STAT US SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

5. Types of Samples and Meas urements for FSS

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

Statistical Sample Population

r8J Total Surface Contamination (TSC) measurements.

r8J Swipe Samples for Loose Surface Contamination.

D Volumetric Material Samples

D Other

Scan Measurements

D I 00% Scan Coverage of Exposed Surfaces.

r8J 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 HOP is 18,925 dprnJIOOcm2 per Tabl~ 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.

ActivilYMean = 1811 dpm/ I 00cm2 = Lower Bound of the Grey Region (LBGR)

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

(j = 572.5

c. Define the Decision Errors.

Type I Error = 0.05 Type II Error = 0. I 0

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

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FINAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

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

Relative Shift = 3 1.4

e. ls the Relative Shift between I and 3? Yes 0 No [2J

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

If the variability in the data set is acceptable. then adjust the LBGR as necessary in order LO achieve a

Relative Shift between I and J. 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= 3.0

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

Number of Samples (N) = 11

8. Determine the Scan MDC

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

0 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 I IDP­PR-FSS-70 l.

1,868 dpm/I 00cm2

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

a. ls the MDC~can for the selected instrument less than the Adjusted Gross DCGL? Yes ~ No D

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Procedure: HDP-PR-FSS-701. Final Status Surve)' Plan Development

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FfNAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

b. lf 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 I 0. If the answer to the question in Step 9a is ·'No" and the survey unit is Class I, 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 statistica l sample population (Asu) = NI A 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 Arca Factor (AF) to derive an Adjusted Gross DCGL1::Ml·

Adjusted Gross DCGLr-Mc = NA dpm/ 100cm2

f. Is the MDCscan for the selected instrument less than the Adjusted Gross DCGLEMC?

Yes D No D NJ\ ~

g. I f the answer to the question above is "Yes". then continue to Step I 0. If the answer to the question above is·' o ,._ then proceed to the next step.

h. Determine a new AF (AFEMC) corresponding to the MDCscan for the selected instrument by dividing the MDCscan by the Adjusted Gross DCGL".

AFEMC corresponding to MDC~can = NA

1. Find the Area (A') that corresponds to the Area Factor (AF12Mc).

A' corresponding to AF1:Mc = NA

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

.I· Determine an Adjusted Number of Samples (NEMd for the stati stical sample population size that corresponds to the bounded A FMC using the equation from Step 8.3.6h of rIDP-PR-FSS-70 I.

N tMt corresponding to A' = NA

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APPENDIX P-2 FINAL STATUS SU RV EY SAMPLING PLAN DEVELOPMENT CH ECKLIST FOR

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N calcu lated in Step 7f = NA

k. Is N 1 M<. > the value of N determined in Step 7r? Yes D No D NA~

(lf "'Ycs". then use the larger Ni .Mt value as the statistical sample population size. I f no, then use the value of N that was ca lculated in Step 7fas the statistical sample popu lation si1:c).

10. Determine the Grid Spacing

a. Is the Survey Unit a Class 3 Survey Unit? Yes D No [81

(lf .. Yes ... then concinue to Step 11. if .. No··. then proceed to the ne~t step).

b . Determine Grid pacing (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 of I IDP-PR-FSS-701

Grid Spacing(L) for Sun ey Un it = 4.33 111

• Minimum number of 11 samples calculated, 15 systematic sam ples were designed.

11. Generate a Survey Map

a. Assign a unique identification number to each measurement in the stati stical sample population using lhe guidance and direction provided in Appendix M of' I IDP-PR-FSS-70 I.

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-70 I.

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

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

e. Attach a cop) of the developed Survey Yl.ap \\ ith sample locations to the FS P.

12. Biased Measurements

a. Designate if any biased measurements will be taken at the discretion of the I IP Staff designing the surYC)' and the basis for taking them. Necessary biased samples will be explained on Appendix P-3. FSS Sump/in~ Plan.

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APPENDIX P-2

Appendix P-2, Page 7of8

FINAL STATUS SURVEY SAMPLlNG PLAN DEVELOPMENT CH ECKLIST FOR STRUCTURE SURVEY UNITS

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, PSS Sample & Measurement Locations & Coordinates.

13. Scan Coverage

a. The Survey Unit is: 1ZJ Class I D Class 2 D Class 3

b. Based on the Survey Unit Classification , the scan cQverage in this Survey Unit is;

0 I 00% Scan Coverage of exposed surface 1ZJ 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 specia l instructions in

the FSS Plan.

14. Investigation Levels

a. The Survey Unit is: D Class 3

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

dpm/ I 00cm2 or che MDC,""" for che instrument used.

2) TSC Measurement Investigation Levels are set at 50% of the Adjusted Gross DCGL" = 9.462

dpm/ l 00cm2•

b. The Survey Unit is: 0 Class 2

I) Scan Investigation Levels arc set at the most limiting between the Adjusted Gross DCGL" = 18.925

dpm/I 00cm1 or che MDC,can for the instrument used.

2) TSC Measurement Investigation Levels are set at the Adjusted Gross DCCL"= 18,925 dpm/1 00cm2•

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FINAL STATUS SURVEY SAMPLING PLAN DEVELOPMENT CHECKLIST FOR STRUCTURE SURVEY UNITS

c. The Survey Unit is: ~ Class I

. -

I) Scan Investigation Leve ls (genera l area) are set at 50% of the Adjusted 9.463 dpm/ 100cm2

Gross DCGLw =

2) TSC Measurement Investigation Levels are set at the Adjusted Gross DCGLw = 18.925 dpm/ I 00cm2.

15. FSSP Development CheckJist Approval

__g_ 4::: (Signature)~

Prepared by: Greg Peterschm idt

(Prin t 'Jame) (Date)

Peer Reviewed by: Scott Zoller

(Print Name)

Approved by (RSO): W. Clark Evers

!Print !\Jamel !Signature) (lJate)

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APPENDIX P-4 FSS SAMPLE & M EASUREMENT LOCATIONS & COORDINATES

Su rvey Area: PSAO I Description: P iping Survey Area Bid 110 NW (STM-1 ) Survey Unit: 01 Description: Storm Waier piping NW of Bid 11 0 Survey Type: FSS Classification: Class I

Measurement o r Sam pk Surface or Type

Start * End * Feet 0 11heas1 Feet Southeast Remarks I

ID CSM Elevation Elevation from MH-07 from :v!H-07 otes

PO 1-01-01-S-O-S-00 0 s NA NA 2 NIA STM-1 Int. Bottom

PO 1-01-02-S-O-S-00 0 s NA NA 17 NIA STM-1 Int. Bottom

PO 1-01-03-S-O-S-OO 0 s NA NA 31 N/A STM-1 Int. Bottom

PO 1-01-04-S-O-S-OO 0 s NA NA 45 N/A STM-1 Int. Bottom

PO 1-01-05-S-0 -S-OO 0 s NA NA 59 NIA STM-1 Int. Bottom

PO 1-01-06-S-O-S-OO 0 s NA NA 73 N/A STM-1 Int. Bonom

PO 1-01 -07-S-O-S-OO 0 s NA NA 88 NIA STM- t Int. Bottom

PO 1-01-08-S-O-S-OO 0 s NA NA 102 NIA STM-1 Int. Bottom

PO 1-01-09-S-O-S-OO 0 s NA NA 11 6 NIA STM- I Int. Bottom

PO 1-01-1 O-S-O-S-00 0 s NA NA 130 NIA STM- 1 Int. Bollom

PO 1-01-1 l-S-O-S-00 0 s NA NA NIA 14 STM-1 Int. Bollom

PO 1-01-12-S-O-S-OO 0 s NA NA NIA 28 STM-1 Int. Bottom

PO 1-01-13-S-O-S-OO 0 s NA NA NIA 43 STM- 1 lnt. BOllom

PO 1-01-14-S-O-S-OO 0 s NA NA NIA 57 STM- l ln t. Bottom

PO 1-01-15-S-O-S-OO 0 s NA NA NIA 71 STM-1 Int. Bottom

*Elevations are in feel above mean sea level.

**Missouri - East State Plane Coordinates rNonh American Datum (NAO) 1983] (Open Land Arca); OR

Distance in feet !Tom lower left comer o f the surface (Structures): each surface has it's own (X, Y) = (0,0); OR

For piping the distance !Tom the beginning of the survey unit. Surface: Floor = F; Wall = W; Ceiling= C: Roof= R; Other=O CSM: Three-Layer (Surface-Root-Deep) or Uniform Type: Systematic = S, Biased = B; QC =Q; Investigation = l

Quali ty Record

Distance

Survey Unit Sample ID Northeast

from pipe elbow

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

PSA-01-01 POl-01-02-S-O-S-OO 17 ft .

PSA-01-01 POl-01-03-S-O-S-OO 31 ft .

PSA-01-01 POl-01-04-S-O-S-OO 45ft.

PSA-01-01 POl-01-05-S-O-S-OO 59 ft.

PSA-01-01 POl-01-06-S-O-S-OO 73 ft . "O )(

E .,;

PSA-01-01 POl-01-07-5-0 -5-00 88ft. ~

N ~ ~

PSA-01-01 POl-01-08-5-0 -5-00 102 ft. d "' ~

I

PSA-01-01 POl-01-09-S-O-S-OO 116 ft . >-., 2: :>

V)

PSA-01-01 POl-01-10-S-O-S-OO 130 ft . O> c '5. ii

Distance I

o,

Survey Unit Sample ID Southeast ;; <{I (/)

a. from pipe e lbow ii!

~ UJ

PSA-01-01 POl-01-11-5-0 -5-01 14 ft . ~ Q;

PSA-01-01 POl-01-12-S-O-S-OO 28 ft . c ~

~ PSA-01-01 POl-01-13-S-O-S-OO 43 ft .

ti ., '2' 9'

PSA-01-01 POl-01-14-5-0 -S-OO 57 ft. "' ~ 0 V)

PSA-01-01 POl-01-15-5-0 -5-00 71 ft. § w

07-01

BLDG 110 @

BSA-01-01 ®"

06-01

08-16

LEGEND:

® STM-1 Pipe Samples

STM-1

08-04 D LSA Boundaries

Building

08-03

Cl llaul Road

,._..,... Fence

0 lo 24 l·cc1

Requested By Documcni Reason C Evers HDP-ENG "-WP-009

PSA-01 -01 Piping Figure

Hematite Decommiss ioning Project Jefferson County

Hematite, MO

Prepared B~ Re\' '>11e Dm~ <;DJ 0 I h I ' 11 -1 ~- I'