Investigation Work Plan for icon

Investigation Work Plan for


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Created on 1/4/2010 22:36:00 a1/p1


LA-UR-0x-xxxx

[Month] 200x

ER200x-xxxx





Template2 for Investigation Work Plan for [Name of drainage] Aggregate Area

[Proposed format for IWPs covering many SWMUs or technical areas]

CD
included with this document






Prepared by the Environmental Programs Directorate

Los Alamos National Laboratory, operated by Los Alamos National Security, LLC, for the U.S. Department of Energy under Contract No. DE-AC52-06NA25396, has prepared this document pursuant to the Compliance Order on Consent, signed March 1, 2005. The Compliance Order on Consent contains requirements for the investigation and cleanup, including corrective action, of contamination at Los Alamos National Laboratory. The U.S. government has rights to use, reproduce, and distribute this document. The public may copy and use this document without charge, provided that this notice and any statement of authorship are reproduced on all copies.

Disclaimer

This document contains data on radioactive materials, including source, special nuclear, and by-product material. The management of these materials is regulated under the Atomic Energy Act and is specifically excluded from regulation under the Resource Conservation and Recovery Act and the New Mexico Hazardous Waste Act. Information on radioactive materials and radionuclides, including the results of sampling and analysis of radioactive constituents, is voluntarily provided to the New Mexico Environment Department in accordance with U.S. Department of Energy policy.


LA-UR-0x-xxxx
ER200x-xxxx


^ Template 2 for Investigation Work Plan
for [drainage name] Aggregate Area

[Month] 200x


Responsible project leader:

[Type name]




Project Leader

Environmental Programs




Printed Name

Signature

Title

Organization

Date

Responsible LANS representative:

[Type name]




Associate Director

Environmental Programs




Printed Name

Signature

Title

Organization

Date

Responsible DOE representative:

[Type name]




Project Director

DOE-LASO




Printed Name

Signature

Title

Organization

Date



^ EXECUTIVE SUMMARY

[This template was created to help bring consistency to the preparation and development of IWPs. Text labeled as “example text” or text in brackets generally indicates text to be completed or customized for the specific work plan. Paragraphs not so labeled are generally “boilerplate” or standard text that does not (usually) need to be modified. Text in red provides rules or policies for development of the information in the text.]

[An alternative outline to that shown in this document may be appropriate for IWPs covering many SWMUs or TAs -- see template 1. Template 1 contains the background discussion of general site conditions and operational history in one major section near the beginning. This template 2 contains general site conditions and operational history within each major subsection that addresses an individual TA.]

[First example text:] The [drainage name] Canyon Aggregate Area is located within and south of the Los Alamos townsite in Technical Areas (TAs) xx, -xx, -xx, and -xx of Los Alamos National Laboratory (the Laboratory) and includes a total of xxx solid waste management units (SWMUs) and areas of concern (AOCs). Details of previous investigations and analytical results for all xxx sites are provided in the historical investigation report for [drainage name] Canyon Aggregate Area. Of these sites, xx have been previously investigated and/or remediated and have been approved for no further action; they are not discussed in this work plan. For the remaining xx sites, this work plan describes the operational history, evaluates existing analytical data, and proposes characterization and/or remediation activities.

Of the xx SWMUs and AOCs in the [drainage name] Canyon Aggregate Area that require some additional characterization and/or remediation activities, x fall within TA xx, xx fall within TA 0x, x fall within TA 0x, x fall within TA xx, and 1 falls within TA xx. These sites include

  • septic tanks and outfalls;

  • sanitary waste lines and sewage treatment facilities;

  • industrial waste lines, drains, and outfalls;

  • storm drains and outfalls;

  • soil contamination areas from Laboratory operations;

  • landfills and surface disposal areas;

  • transformer sites; and

  • incinerators.

[Optional:] This aggregate area also includes two sites associated with former TA-xx but which lie within the boundary of TA-xx. TA-xx contains xx SWMUs and AOCs: xx sites have been approved for no further action (NFA), and xx sites will be investigated as part of this work plan. TA-xx contains xx sites: x have been approved for NFA and x is pending New Mexico Environment Department review.

This investigation work plan identifies and describes the activities needed to evaluate the historical data and, based on that evaluation, to propose additional sampling as necessary to define the nature and extent of contamination associated with the SWMUs, AOCs, and consolidated units within the [drainage name] Aggregate Area. Details of previous investigations and analytical results for the xx sites included in this work plan are provided in the historical investigation report for [drainage name] Aggregate Area.

[Example text for some sites:] All field activities proposed in this work plan will be conducted using a phased approach. The sites in this work plan are related to some of the earliest activities at the Laboratory and have been subjected to various investigation, remediation, demolition, and construction activities, particularly within TA xx and TA xx. These activities have resulted in significant changes to the SWMUs and AOCs relative to their operational conditions and complicate the selection of valid sampling locations. The proposed sampling locations presented in this work plan are preliminary. A variety of methods, singly or in combination, may be used to identify the final sampling locations. These methods include research of engineering or other drawings, nonintrusive geophysical surveys, and trenching. Field screening will also be conducted during all field activities, primarily for health and safety purposes, but also to assist with selection of sample locations.

[Second example text:] The objective of this work plan is to evaluate the historical data and, based on that evaluation, to propose additional sampling as necessary to define the nature and extent of contamination associated with the SWMUs, AOCs, and consolidated units within the [drainage name] Aggregate Area.


CONTENTS

1.0 INTRODUCTION 1

1.1 Work Plan Overview 1

1.2 Work Plan Objectives 2

1.3 Phased Approach of Field Activities 2

1.4 Data Overview 2

^ 2.0 SITE CONDITIONS 3

2.1 Surface Conditions 3

2.1.1 Soil 3

2.1.2 Surface Water 4

2.1.3 Land Use 5

2.2 Subsurface Conditions 5

2.2.1 Anticipated Stratigraphic Units 5

2.2.2 Hydrogeology 8

2.3 Conceptual Site Model 11

2.3.1 Potential Contaminant Sources 11

2.3.2 Potential Contaminant Transport Mechanisms 11

2.3.3 Potential Receptors 12

2.3.4 Cleanup Standards 13

3.0 TA 00 13

3.1 Background 13

3.1.1 Operational History 14

3.1.2 Summary of Releases, Transport Mechanisms, and Potential Receptors 14

3.1.3 Current Site Usage and Status 16

3.2 SWMU 00-017, Waste Lines 16

3.2.1 Summary of Previous Investigations for SWMU 00-017 16

3.2.2 Summary of Data for SWMU 00-017 17

3.2.3Scope of Activities for SWMU xx-017 17

3.3 AOC 00-031(a), Soil Contamination beneath Former Service Station 19

3.3.1 Summary of Previous Investigations for AOC 00-031(a) 19

3.3.2 Summary of Data for AOC 00-031(a) 19

3.3.3 Scope of Activities for AOC 00-031(a) 20

^ 4.0 TA 01, FORMER MAIN TECHNICAL AREA 20

4.1 Background 20

4.1.1 Operational History 21

4.1.2 Summary of Releases, Transport Mechanisms, and Potential Receptors 21

4.1.3 Current Site Usage and Status 22

4.2 SWMU 01-001(a), Septic Tank 134 22

4.2.1 Summary of Previous Investigations for SWMU 01-001(a) 22

4.2.2 Summary of Data for SWMU 01-001(a) 22

4.2.3 Scope of Activities for SWMU 01-001(a) 22

4.3 SWMU 01-001(b), Septic Tank 135 23

4.3.1 Summary of Previous Investigations for SWMU 01-001(b) 24

4.3.2 Summary of Data for SWMU 01-001(b) 24

4.3.3 Scope of Activities for SWMU 01-001(b) 24

4.4 SWMU 0x-00x(c), [other technical areas as needed] 26

^ 5.0 TA xx, SOUTH MESA SITE 26

5.1 Background 26

5.1.1 Operational History 26

5.1.2 Summary of Releases, Transport Mechanisms, and Potential Receptors 26

5.1.3 Current Site Usage and Status 27

5.2 AOC 03-008(a), Firing Site 27

5.2.1 Summary of Previous Investigations for AOC 03-008(a) 27

5.2.2 Summary of Data for AOC 03-008(a) 27

5.2.3 Scope of Activities for AOC 03-008(a) 27

5.3 SWMU 03-009(j), Surface Disposal Site 27

5.3.1 Summary of Previous Investigations for SWMU 03-009(j) 27

5.3.2 Summary of Data for SWMU 03-009(j) 28

5.3.3 Scope of Activities for SWMU 03-009(j) 28

5.4 SWMUs 03-038(a,b), [Other SWMUs as needed] 28

6.0 TA-xx, [Other TA as needed] 28

^ 10.0 INVESTIGATION METHODS 28

10.1 Establish Sampling Locations 29

10.2 Geophysical Surveys 30

10.3 Geodetic Surveys 30

10.4 Surface Sampling 30

10.4.1 Spade and Scoop Method 30

10.4.3 Sediment Samples 31

10.5 Subsurface Sampling 31

10.5.1 Hollow-stem Auger 31

10.5.2 Hand Auger 31

10.5.3 Split-Spoon Sampling 31

10.5.4 Borehole Abandonment 32

10.5.5 Excavation 32

10.6 Chain of custody for samples 32

10.7 Field Screening Methods 32

10.7.1 Radiological Field Screening 32

10.7.2 Organic Vapor Field Screening 33

10.7.3 Quality Assurance /Quality Control Samples 33

10.8 Laboratory Analytical Methods 33

10.9 Health and Safety 33

10.10 Equipment Decontamination 33

10.11 Investigation-Derived Waste 33

10.12 Removal Activities 34

10.12.1 Septic Tanks 34

10.13 Waste Management and Disposal 34

^ 11.0 MONITORING AND SAMPLING PROGRAM 34

11.1 Groundwater 35

11.2 Sediment and Surface Water 35

12.0 SCHEDULE 35

13.0 References 36

13.1 Document references 36

13.2 Map data sources 40

A-1.0 ACRONYMS and abbreviations 1

A-2.0 GLOSsary 3

A-3.0 Metric Conversion TABLE 13

A-4.0 Data Qualifier Definitions 13

B-1.0 Introduction 2



Appendixes

[Consent Order Section XI.B.13, Appendices: A description of IDW management shall be included as an appendix to the investigation work plan. The results of historical investigations required in this Consent Order shall be submitted with the investigation work plan as a separate document. Additional appendixes may be necessary to present additional data or documentation not listed above.]

Appendix A Acronyms and Abbreviations, Glossary, and Metric Conversion Table

Appendix B Management Plan for Investigation-Derived Waste [Obtain correct Appendix B from ENV-RCRA waste management personnel listed on first page of Appendix B template in back.]

[The list of figures, plates, and tables is here as an example only of the types of figures that may need to be included. Figures and tables must be selected, created, and renumbered as appropriate for the area being investigated. See the Consent Order (XI.B.11 and XI.B.12) for specific requirements for tables and figures.]

[Don’t include non-detects on maps. Ensure maps extend to include immediately adjacent canyon reaches. Ensure content of figures and tables agree. ]

Plates

Plate 1 [drainage name] Canyon Aggregate Area SWMUs and AOCs

Plate 2 TA-0x site map

[The list of figures, plates, and tables here and the examples in the back of this document are examples only of the types that may need to be included. Figures and tables must be selected, created, and renumbered as appropriate for the area being investigated. See Consent Order Section XI.B.12 (below) for a list of all required figures.]

[Consent Order Section XI.B.12 Figures:

The following figures shall be included with each investigation work plan for each site, including presentation of data where previous investigations have been conducted. All figures must include an accurate bar scale and a north arrow. An explanation shall be included on each figure for all abbreviations, symbols, acronyms, and qualifiers. All maps shall contain a date of preparation.

^ 1. A vicinity map showing topography and the general location of the site relative to surrounding features and properties.

2. A site plan that presents pertinent site features and structures, underground utilities, well locations, and remediation system locations and details. Off-site well locations and other relevant features shall be included on the site plan, if appropriate. Additional site plans may be required to present the locations of relevant off-site well locations, structures, and features.

3. Figures showing historical and proposed soil boring or excavation locations and sampling locations.

4. Figures presenting historical soil sample field screening and laboratory analytical data.

5. Figures presenting the locations of all existing and proposed borings and vapor monitoring well locations.

6. Figures showing all existing and proposed wells and piezometers, presenting historical groundwater elevation data, and indicating groundwater flow directions.

7. Figures presenting historical groundwater laboratory analytical data, if applicable. The chemical analytical data corresponding to each sampling location can be presented in tabular form on the figure or as an isoconcentration map.

8. Figures presenting historical and proposed surface water sample locations and field measurement data, if applicable.

9. Figures presenting historical surface water laboratory analytical data, if applicable.

10. Figures showing historical and proposed air or vapor sampling locations and presenting historical air quality data.

11. Figures presenting historical pilot and other testing locations and data, where applicable, including site plans and graphic data presentation.

12. Figures presenting geologic cross-sections, based on outcrop and borehole data acquired during previous investigations.]


[The number and content of tables or figures will need to be modified on a case-by-case basis to accommodate large areas or complex sites. For example, one map may be needed to show location with respect to adjacent drainages or canyon reaches and a second map to show the location of sites and utilities within the site. Complex utility layouts may require figures at differing scales.]


[For showing sampling locations in drainages, NMED wants to see canyon reaches on the same map with the sample locations.]


[For some sites, historical information was presented in an HIR and does not need to be repeated in figures and tables in the IWP.]


[Don’t include non-detects on maps. Ensure maps extend to include immediately adjacent canyon reaches. Ensure content of figures and tables agree. ]

[Photos are suggested to clearly show the complexity and logistical problems of certain sites.]

[Follow map guidelines in “Document Map Guidelines”, Dec 2006, EP-2006-0924.]

Figures

Figure n.n-n Location of [drainage name] Canyon Aggregate Area with respect to Laboratory TAs and surrounding land holdings 111

^ Figure n.n-n [drainage name] Aggregate Area [Example of preferred figure style and “look”. 1

2

Figure n.n-n Generalized stratigraphy of bedrock geologic units of the Pajarito Plateau] 2

3

Figure 5.12-1[from Canada del Buey IWP] Site features for SWMUs [drainage name] Aggregate Area [Example of preferred figure style and “look”.] 3

4

Figure 4.1-1[from Canada del Buey IWP] Site features for SWMU 04-003(a) and AOC 04-004 [Example of preferred figure style and “look”.] 4

5

Figure 4.1-2[from Canada del Buey IWP] Inorganic chemicals detected above BVs at SWMU 04-003(a) and AOC 04-004 [Example of preferred figure style and “look”.] 5

6

7

8

Figure n.n-n Site features for SWMU xx-xxx(a) and AOC xx-xxx 77

Figure n.n-n Inorganic chemicals detected above BVs at SWMU xx-xxx(a) and AOC xx-xxx 78

Figure n.n-n Organic chemicals detected at SWMU xx-xxx(a) and AOC xx-xxx 79

Figure n.n-n Radionuclides detected or detected above BVs/FVs at SWMU xx-xxx and
AOC xx-xxx 80

Figure n.n-n Proposed sampling locations for SWMU xx-xxx(a) and AOC xx-xxx 81

Figure n.n-n Site features for SWMUs xx-xxx, xx-xxx, [list]. 82

Figure n.n-n AOC 00-031(a) site map 118

Figure n.n-n AOC 00-031(a) site photograph (looking south) 119

Figure n.n-n AOCs 00-031(b) and C-00-042 site map 120

Figure n.n-n AOC 00-031(b) site photograph (looking south) 121

Figure n.n-n AOC 00-034(b) site map 122

Figure n.n-n AOC C-00-042 site photograph (looking south) 123

Figure n.n-n SWMU 01-001(a) site map and proposed sample locations 124

Figure n.n-n SWMU 01-001(a) mesa top site photograph (looking south) 125

Figure n.n-n SWMU 01-001(b) site map and proposed sample locations 126

Figure n.n-n SWMU 01-001(b) mesa top site photograph (looking west) 127

Figure n.n-n SWMU 01-001(c) site map 128

Figure n.n-n SWMUs 01-001(c), 01-006(c), 01-006(d), and 01-007(b) proposed sample locations 129

Figure n.n-n SWMU 01-001(u) site photograph (looking west) 149

Figure n.n-n SWMU 01-002 site map 150

Figure n.n-n SWMUs 01-002 and 01-007(c) proposed sample locations 151

[Repeat sequence of figures as needed for each SWMO or AOC.]

Figure n.n-n TA-03 site map 184


[The list of figures, plates, and tables here and the examples in the back of this document are examples only of the types that may need to be included. Figures and tables must be selected, created, and renumbered as appropriate for the area being investigated. See Consent Order Section XI.B.11 (below) for a list of all required tables.]

[Consent Order Section XI.B.11 Tables:

The following summary tables may be included in the investigation work plans, if previous investigations have been conducted at the site. Data presented in the tables shall include information on dates of data collection, analytical methods, detection limits, and significant data quality exceptions. The analytical data tables shall include only detected analytes and data quality exceptions that could potentially mask detections.

1. Summaries of regulatory criteria, background, and applicable cleanup levels (may be included in the analytical data tables instead of as separate tables).

2. Summaries of historical field survey location data.

3. Summaries of historical field screening and field parameter measurements of soil, rock, sediments, groundwater, surface water, and air quality data.

4. Summaries of historical soil, rock, or sediment laboratory analytical data shall include the analytical methods, detection limits, and significant data quality exceptions that could influence interpretation of the data.

5. Summaries of historical groundwater elevation and depth to groundwater data. The table shall include the monitoring well depths, the screened intervals in each well, and the dates and times measurements were taken.

6. Summaries of historical groundwater laboratory analytical data. The analytical data tables shall include the analytical methods, detection limits, and significant data quality exceptions that could influence interpretation of the data.

7. Summary of historical surface water laboratory analytical data. The analytical data tables shall include the analytical methods, detection limits, and significant data quality exceptions that could influence interpretation of the data.

8. Summary of historical air sample screening and chemical analytical data. The data tables shall include the screening instruments used, laboratory analytical methods, detection limits, and significant data quality exceptions that could influence interpretation of the data.

^ 9. Summary of historical pilot or other test data, if applicable, including units of measurement and types of instruments used to obtain measurements.]

Tables

Table n.n-n SWMUs and AOCs within the [drainage name] Aggregate Area 99

Table n.n-n Summary of Human Health Screening Levels for Chemicals and Radionuclides 103

Table n.n-n Analytical Methods for Surface and Subsurface Characterization 134

Table n.n-n Summary of Analytical Suites for Samples Previously Collected in TA-00 134

[Example table provided for samples previously collected may need to be separated into two tables, one for previous samples providing screening data and one for previous samples providing decision data.]

Table n.n-n Summary of Inorganic Chemicals above BVs at SWMU 00-000 134

Table n.n-n Summary of Organic Chemicals Detected at SWMU 00-000 134

Table n.n-n Summary of Radionuclides Detected or Detected above BVs/FVs at SWMU 04-00x 134

Table n.n-n Summary of Proposed Sampling at SWMU 00-000 134

[Repeat sequence of tables as needed for each SWMO or AOC.]

Table 10.0-1 Summary of Investigation Methods 272






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