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Pacific Southwest, Region 9: Superfund

Serving Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations

San Fernando Valley (All Areas)

Superfund Site

Technical Document

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Date Title / pdf File
06/01/98 1997 Groundwater Quality Monitoring Report

San Fernando Valley

1997 Groundwater Quality
Monitoring Report
Table of Contents
Title Page title.pdf(38 kb)
contents.pdf(17kb)
Section (Page)
1 Introduction (1-1)
1.1 Setting (1-1)
1.2 Background (1-1)
1.3 Report Organization (1-2)
section1.pdf(11 kb)
2 Second, Third and Fourth Quarter 1997 Sampling Events(2-1)
2.1 Description of Activities (2-1)
2.1.1 Second Quarter (2-13)
2.1.2 Third Quarter (2-13)
2.1.3 Fourth Quarter (2-13)

2.2 Analytical Results (2-13)
2.2.1 Second Quarter (2-13)
2.2.2 Third Quarter (2-14)
2.2.3 Fourth Quarter (2-19)
section2.pdf(19 kb)
3 Discussion of Second, Third and Fourth Quarter 1997
Results (3-1)
3.1 Comparison of Water Levels (3-1)
3.2 Comparison of Quarterly Analytical Results (3-1)
3.2.1 TCE Concentrations (3-20)
3.2.2 PCE Concentrations (3-30)
3.2.3 Nitrate (3-30)
3.2.4 Other VOCs (3-31)
3.3 Concentration Contour Maps (3-31)
3.3.1 Interval Selection (3-35)
3.3.2 Estimated Areal Extent (3-35)
3.3.3 Upper Interval (3-36)
3.3.4 Lower Interval (3-37)
section3.pdf(32 kb)
4 Summary of 1997 RI Sampling Program (4-1)
4.1 Quarterly Sampling Activities (4-1)
4.1.1 Description of Activities (4-1)
4.1.2 TCE Concentrations (4-2)
4.1.3 PCE Concentrations (4-2)
4.1.4 Other VOCs (4-2)
4.1.5 Nitrate (4-2)
4.1.6 Other Analytical Parameters (4-10)
section4.pdf(14 kb)
5 Sampling Program Re-evaluation (5-1)
5.1 Criteria for Re-evaluation (5-1)
5.2 Recommendations (5-2)
section5.pdf(17 kb)
References (6-1) refernce.pdf(7 kb)
(Appendixes are not available for downloading)
Appendix A: RI Monitoring Well Completion Data
Appendix B: Rationale for Selection of Representative
Monitoring Well Data
Appendix C: RI Monitoring Well Submersible Pump
Installation Data
Appendix D: First, Second, and Third Quarter
Chain-of-Custody Forms
Appendix E: Second, Third and Fourth Quarter Summary of
Detected Compounds
Appendix F: Second, Third, and Fourth Quarter Quality
Assurance Sample Data
Appendix G: TCE Contamination in Shallow Zone in 1997
Appendix H: PCE Contamination in Shallow Zone in 1997
Tables (Page)

1-1 Wells Sampled- Second, Third and Fourth Quarters-1997
(1-3)
table1-1.pdf (7 kb)
2-1 Groundwater Elevations- Second, Third, and Fourth
Quarters-1997 (2-5)
2-2 Final Field Measurements- Second, Third and Fourth
Quarters-1997 Sampling Events (2-6)
table2-1.pdf (15 kb)
table2-2.pdf(18 kb)
2-3 Standards for Selected Organic Compounds, Metals, and
Inorganic Compounds (2-10)
table2-3.pdf (29 kb)
2-4 Analytical Methods and Detection Limits for Groundwater
Sample Parameters (2-12)
table2-4.pdf (7 kb)
2-5 Summary of TCE, PCE, and Nitrate- Second Quarter
-1997 (2-15)
table2-5.pdf(11 kb)
2-6 Summary of TCE, PCE and Nitrate- Third Quarter-1997
(2-17)
table2-6.pdf(11 kb)
2-7 Summary of TCE, PCE, and Nitrate-Fourth Quarter-1997
(2-20)
table2-7.pdf (11 kb)
2-8 General Water Chemistry-Fourth Quarter-1997 Sampling
Event (2-22)
table2-8.pdf(11 kb)
2-9 Summary of Metals Exceeding MCLs-Fourth
Quarter-1997 (2-24)
table2-9.pdf(6 kb)
3-1 Maximum and Minimum Detected TCE Values-
Second Quarter-1997 (3-2)
table3-1.pdf(16 kb)
3-2 Maximum and Minimum Detected TCE
Values-Third Quarter-1997 (3-5)
table3-2.pdf(16 kb)
3-3 Maximum and Minimum Detected TCE Values-
Fourth Quarter-1997 (3-8)
table3-3.pdf (16 kb)
3-4 Maximum and Minimum Detected PCE Values-
Second Quarter-1998 (3-11)
table3-4.pdf(16 kb)
3-5 Maximum and Minimum Detected PCE Values-
Fourth Quarter-1997 (3-14)
table3-5.pdf(15 kb)
3-6 Maximum and Minimum Detected PCE Values-
Fourth Quarter-1997 (3-17)
table3-6.pdf (16 kb)
3-7 Maximum and Minimum Detected Nitrate (as NO3)
Values- Second Quarter-1997 (3-21)
table3-7.pdf(16 kb)
3-8 Maximum and Minimum Detected Nitrate (as NO3)
Values- Third Quarter-1997 (3-24)
table3-8.pdf (16 kb)
3-9 Maximum and Minimum Detected Nitrate (as NO3)
Values- Fourth Quarter-1997 (3-27)
table3-9.pdf(16 kb)
3-10 Summary of VOCs Exceeding MCLs- Second
Quarter-1997 (3-32)
tabl3-10.pdf(6 kb)
3-11 Summary of VOCs Exceeding MCLs-Third
Quarter-1997 (3-33)
tabl3-11.pdf(6 kb)
3-12 Summary of VOCs Exceeding MCLs-Fourth
Quarter-1997 (3-34)
tabl3-12.pdf(6 kb)
4-1 Summary of TCE Values- Second, Third and Fourth
Quarters-1997 (4-3)
table4-1.pdf(12 kb)
4-2 Summary of PCE Values- Second, Third and Fourth
Quarters-1997 (4-5)
table4-2.pdf (12 kb)
4-4 Summary of Nitrate Values- Second, Third and
Third Quarters-1997 (4-8)
table4-4.pdf (12 kb)
5-1 Assignment of RI Monitoring Wells1997 Sampling
Program (5-2)
table5-1.pdf(8 kb)
5-2 Recommendations for Number of RI Wells 1997
Sampling Frequency (5-3)
table5-2.pdf(7 kb)
Figures (Page)

1-1 Site Location Map (1-4)
fig1-1.jpg
1-2 Location Map of RI Wells (1-5) fig1-2.jpg
3-1 Hydrographs of RI Monitoring Wells (3-39) fig3-1.pdf (2422 kb)
3-2 Historical Chemical Concentration of TCE for RI
Monitoring Wells (3-48)
fig3-2.pdf (2002 kb)
3-3 Historical Chemical Concentration of PCE for RI
Monitoring Wells (3-57)
fig3-3.pdf (1965 kb)
3-4 Historical Chemical Concentrations of Nitrate for RI
Monitoring Wells (3-66)
fig3-4.pdf(2313 kb)
3-5 Location of Wells used for Preparing Plume Maps
(3-75)
fig3-5.jpg(163 kb)

3-6 TCE Contamination in Shallow Zone in 1997 (3-76)
3-7 PCE Contamination in Shallow Zone in 1997 (3-77)
3-8 NO3 Contamination in Shallow Zone in 1997 (3-78)
3-9 TCE Contamination in Deeper Zone in 1997 (3-79)
3-10 PCE Contamination in Shallow Zone, 1997 (3-80)
3-11 N03 Contamination in Deeper Zone in 1997 (3-81)

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