Att #11 CEQA Environmental Compliance Checklist 2-2026 — City Council/Public Financing Authority, March 3, 2026 (part 3 of 3)

Eurofins Calscience LLC
3/19/2021
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 1 2
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15 Definitions/Glossary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Qualifiers

GC/MS VOA
Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.

Qualifier
Metals
Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.

Qualifier
Glossary
These commonly used abbreviations may or may not be present in this report. ¤ Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Calscience LLC

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15 Case Narrative
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Job ID: 570-53807-1
Laboratory: Eurofins Calscience LLC
Narrative
Job Narrative
570-53807-1
Comments
No additional comments.

Receipt
The sample was received on 3/15/2021 10:15 AM. Unless otherwise noted below, the sample arrived in good condition, and where required, properly preserved and on ice. The temperature of the cooler at receipt was 3.8º C.

GC/MS VOA
Method 8260B: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 570-136182 and analytical batch 570-136236 were outside control limits. Sample matrix interference is suspected because the associated laboratory control sample (LCS) recovery was within acceptance limits.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

GC Semi VOA
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Metals
Method 6010B: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 570-136938 and analytical batch 570-137251 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because the associated laboratory control sample (LCS) recovery was within acceptance limits.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

Organic Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

VOA Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Eurofins Calscience LLC Page 4 of 32 3/19/2021
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15 Detection Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Client Sample ID: EP-IDW-01 Lab Sample ID: 570-53807-1
Acetone
RL
20 ug/Kg
Analyte Result Qualifier Unit Dil Fac D Method Prep Type 27 1 8260B Total/NA
C6-C44 9.5 5.0 mg/Kg 1 8015B Total/NA
Arsenic 6.38 2.48 mg/Kg 1 6010B Total/NA
Barium 91.1 0.495 mg/Kg 1 6010B Total/NA
Beryllium 1.06 0.248 mg/Kg 1 6010B Total/NA
Cadmium 1.13 0.495 mg/Kg 1 6010B Total/NA
Chromium 21.3 0.990 mg/Kg 1 6010B Total/NA
Cobalt 10.2 0.990 mg/Kg 1 6010B Total/NA
Copper 20.3 0.990 mg/Kg 1 6010B Total/NA
Nickel 15.5 0.495 mg/Kg 1 6010B Total/NA
Vanadium 42.1 0.990 mg/Kg 1 6010B Total/NA
Zinc 57.6 9.90 mg/Kg 1 6010B Total/NA
Eurofins Calscience LLC
This Detection Summary does not include radiochemical test results.

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15 Client Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 8260B - Volatile Organic Compounds (GC/MS)
Client Sample ID: EP-IDW-01 Lab Sample ID: 570-53807-1
Date Collected: 03/12/21 18:20 Matrix: Solid
Date Received: 03/15/21 10:15
RL
1,1,1,2-Tetrachloroethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 9.9 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,1,2-Trichloroethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,1-Dichloroethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,1-Dichloroethene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2,3-Trichlorobenzene ND F1 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2,4-Trichlorobenzene ND F1 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2-Dibromo-3-Chloropropane ND 9.9 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2-Dibromoethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2-Dichlorobenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2-Dichloroethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,2-Dichloropropane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,3-Dichlorobenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,3-Dichloropropane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 1,4-Dichlorobenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 2-Butanone ND 20 ug/Kg 03/16/21 11:27 03/16/21 11:57 1
2-Chlorotoluene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 2-Hexanone ND 20 ug/Kg 03/16/21 11:27 03/16/21 11:57 1
4-Chlorotoluene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 4-Methyl-2-pentanone ND 20 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Acetone 27 20 ug/Kg 03/16/21 11:27 03/16/21 11:57 1
Benzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1
Bromobenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Bromochloromethane ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Bromodichloromethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Bromoform ND 5.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1
Bromomethane ND 20 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 cis-1,2-Dichloroethene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 cis-1,3-Dichloropropene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Carbon disulfide ND 9.9 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Carbon tetrachloride ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Chlorobenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Chloroethane ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Chloroform ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Chloromethane ND F1 20 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Dibromochloromethane ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Dibromomethane ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Ethylbenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Isopropylbenzene ND 0.99 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Methylene Chloride ND 9.9 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Methyl-t-Butyl Ether (MTBE) ND 2.0 ug/Kg 03/16/21 11:27 03/16/21 11:57 1 Eurofins Calscience LLC

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15 Client Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 8015B - Diesel Range Organics (DRO) (GC)
Client Sample ID: EP-IDW-01 Lab Sample ID: 570-53807-1
Date Collected: 03/12/21 18:20 Matrix: Solid
Date Received: 03/15/21 10:15
RL
C6 as C6 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac C7 as C7 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C8 as C8 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C9-C10 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C11-C12 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C13-C14 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C15-C16 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C17-C18 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C19-C20 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C21-C22 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C23-C24 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C25-C28 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C29-C32 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C33-C36 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C37-C40 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C41-C44 ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
C6-C44 9.5 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1
Diesel Range Organics [C10-C28] ND 5.0 mg/Kg 03/16/21 14:07 03/17/21 03:11 1 n-Octacosane (Surr) 95 60 - 138 03/16/21 14:07 03/17/21 03:11 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Eurofins Calscience LLC

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15 Client Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 6010B - Metals (ICP)
Client Sample ID: EP-IDW-01 Lab Sample ID: 570-53807-1
Date Collected: 03/12/21 18:20 Matrix: Solid
Date Received: 03/15/21 10:15
RL
Antimony ND 2.97 mg/Kg 03/18/21 15:00 03/19/21 11:01 1
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Arsenic 6.38 2.48 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Barium 91.1 0.495 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Beryllium 1.06 0.248 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Cadmium 1.13 0.495 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Chromium 21.3 0.990 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Cobalt 10.2 0.990 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Copper 20.3 0.990 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Lead ND 4.95 mg/Kg 03/18/21 15:00 03/19/21 11:01 1
Molybdenum ND 0.495 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Nickel 15.5 0.495 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Selenium ND 4.95 mg/Kg 03/18/21 15:00 03/19/21 11:01 1
Silver ND 0.990 mg/Kg 03/18/21 15:00 03/19/21 11:01 1
Thallium ND 4.95 mg/Kg 03/18/21 15:00 03/19/21 11:01 1
Vanadium 42.1 0.990 mg/Kg 03/18/21 15:00 03/19/21 11:01 1 Zinc 57.6 9.90 mg/Kg 03/18/21 15:00 03/19/21 11:01 1
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Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 7471A - Mercury (CVAA)
Client Sample ID: EP-IDW-01 Lab Sample ID: 570-53807-1
Date Collected: 03/12/21 18:20 Matrix: Solid
Date Received: 03/15/21 10:15
RL
Mercury ND 0.0847 mg/Kg 03/18/21 15:00 03/19/21 12:06 1 Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Eurofins Calscience LLC

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15 Surrogate Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 8260B - Volatile Organic Compounds (GC/MS)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (71-155) (80-120) (79-133) (80-120)

DCA BFB DBFM TOL
570-53807-1 106 95 96 96
Percent Surrogate Recovery (Acceptance Limits)
EP-IDW-01
570-53807-1 MS EP-IDW-01 107 101 103 102
570-53807-1 MSD EP-IDW-01 105 101 103 103
LCS 570-136182/1-A Lab Control Sample 100 99 102 102
LCSD 570-136182/2-A Lab Control Sample Dup 100 102 102 102 MB 570-136182/3-A Method Blank 108 98 98 97
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Method: 8015B - Diesel Range Organics (DRO) (GC)
Matrix: Solid Prep Type: Total/NA
Lab Sample ID Client Sample ID (60-138)
OTCSN1
570-53646-A-4-A MS 86
Percent Surrogate Recovery (Acceptance Limits)
Matrix Spike
570-53646-A-4-B MSD Matrix Spike Duplicate 94
570-53807-1 EP-IDW-01 95
LCS 570-136343/2-A Lab Control Sample 85
LCSD 570-136343/3-A Lab Control Sample Dup 87
MB 570-136343/1-A Method Blank 86
Surrogate Legend
OTCSN = n-Octacosane (Surr)
Eurofins Calscience LLC

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15 QC Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 8260B - Volatile Organic Compounds (GC/MS)
Lab Sample ID: MB 570-136182/3-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136236 Prep Batch: 136182
RL
1,1,1,2-Tetrachloroethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac 1,1,1-Trichloroethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,1,2,2-Tetrachloroethane ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,1,2-Trichloroethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,1-Dichloroethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,1-Dichloroethene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,1-Dichloropropene ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2,3-Trichlorobenzene ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2,3-Trichloropropane ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2,4-Trichlorobenzene ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2,4-Trimethylbenzene ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2-Dibromo-3-Chloropropane ND 10 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2-Dibromoethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2-Dichlorobenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2-Dichloroethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,2-Dichloropropane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,3,5-Trimethylbenzene ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,3-Dichlorobenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,3-Dichloropropane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 1,4-Dichlorobenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 2,2-Dichloropropane ND 5.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 2-Butanone ND 20 ug/Kg 03/16/21 07:28 03/16/21 10:36 1
2-Chlorotoluene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 2-Hexanone ND 20 ug/Kg 03/16/21 07:28 03/16/21 10:36 1
4-Chlorotoluene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 4-Methyl-2-pentanone ND 20 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Acetone ND 20 ug/Kg 03/16/21 07:28 03/16/21 10:36 1
Benzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1
Bromobenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Bromochloromethane ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Bromodichloromethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Bromoform ND 5.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1
Bromomethane ND 20 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 cis-1,2-Dichloroethene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 cis-1,3-Dichloropropene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Carbon disulfide ND 10 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Carbon tetrachloride ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Chlorobenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Chloroethane ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Chloroform ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Chloromethane ND 20 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Dibromochloromethane ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Dibromomethane ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Dichlorodifluoromethane ND 2.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Ethylbenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Isopropylbenzene ND 1.0 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Methylene Chloride ND 10 ug/Kg 03/16/21 07:28 03/16/21 10:36 1 Eurofins Calscience LLC

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LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
1,1,1-Trichloroethane 50.0 46.20 ug/Kg 92 70 - 130
1,1,2,2-Tetrachloroethane 50.0 51.17 ug/Kg 102 70 - 130 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 41.44 ug/Kg 83 70 - 130
1,1,2-Trichloroethane 50.0 50.28 ug/Kg 101 70 - 130
1,1-Dichloroethane 50.0 46.72 ug/Kg 93 70 - 130
1,1-Dichloroethene 50.0 47.49 ug/Kg 95 74 - 122
1,1-Dichloropropene 50.0 46.75 ug/Kg 94 70 - 130
1,2,3-Trichlorobenzene 50.0 51.14 ug/Kg 102 70 - 130
1,2,3-Trichloropropane 50.0 50.79 ug/Kg 102 70 - 130
1,2,4-Trichlorobenzene 50.0 50.36 ug/Kg 101 70 - 130
1,2,4-Trimethylbenzene 50.0 49.41 ug/Kg 99 70 - 130
1,2-Dibromo-3-Chloropropane 50.0 50.89 ug/Kg 102 70 - 130 1,2-Dibromoethane 50.0 50.47 ug/Kg 101 70 - 130
1,2-Dichlorobenzene 50.0 48.68 ug/Kg 97 75 - 120
1,2-Dichloroethane 50.0 48.29 ug/Kg 97 70 - 130
1,2-Dichloropropane 50.0 49.28 ug/Kg 99 79 - 115
1,3,5-Trimethylbenzene 50.0 48.61 ug/Kg 97 70 - 130
Eurofins Calscience LLC

Page 13 of 32 ends

LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
1,3-Dichloropropane 50.0 49.24 ug/Kg 98 70 - 130
1,4-Dichlorobenzene 50.0 46.79 ug/Kg 94 70 - 130
2,2-Dichloropropane 50.0 49.93 ug/Kg 100 70 - 130
2-Butanone 50.0 55.45 ug/Kg 111 70 - 130
2-Chlorotoluene 50.0 47.35 ug/Kg 95 70 - 130
2-Hexanone 50.0 54.55 ug/Kg 109 70 - 130
4-Chlorotoluene 50.0 48.07 ug/Kg 96 70 - 130
4-Methyl-2-pentanone 50.0 51.75 ug/Kg 104 70 - 130
Acetone 50.0 54.17 ug/Kg 108 70 - 130
Benzene 50.0 45.01 ug/Kg 90 78 - 120
Bromobenzene 50.0 47.72 ug/Kg 95 70 - 130
Bromochloromethane 50.0 48.38 ug/Kg 97 70 - 130
Bromodichloromethane 50.0 51.51 ug/Kg 103 70 - 130
Bromoform 50.0 52.81 ug/Kg 106 70 - 130
Bromomethane 50.0 53.26 ug/Kg 107 70 - 130
cis-1,2-Dichloroethene 50.0 49.54 ug/Kg 99 70 - 130
cis-1,3-Dichloropropene 50.0 51.19 ug/Kg 102 70 - 130
Carbon disulfide 50.0 48.28 ug/Kg 97 70 - 130
Carbon tetrachloride 50.0 47.14 ug/Kg 94 49 - 139
Chlorobenzene 50.0 46.39 ug/Kg 93 79 - 120
Chloroethane 50.0 47.14 ug/Kg 94 70 - 130
Chloroform 50.0 49.29 ug/Kg 99 70 - 130
Chloromethane 50.0 39.53 ug/Kg 79 70 - 130
Dibromochloromethane 50.0 53.56 ug/Kg 107 70 - 130
Dibromomethane 50.0 50.64 ug/Kg 101 70 - 130
Dichlorodifluoromethane 50.0 41.86 ug/Kg 84 70 - 130
Ethylbenzene 50.0 47.46 ug/Kg 95 76 - 120
Isopropylbenzene 50.0 48.63 ug/Kg 97 70 - 130
Methylene Chloride 50.0 47.58 ug/Kg 95 70 - 130
Methyl-t-Butyl Ether (MTBE) 50.0 47.76 ug/Kg 96 70 - 124 Naphthalene 50.0 47.38 ug/Kg 95 70 - 130
n-Butylbenzene 50.0 48.67 ug/Kg 97 77 - 123
N-Propylbenzene 50.0 47.56 ug/Kg 95 70 - 130
o-Xylene 50.0 50.38 ug/Kg 101 70 - 130
m,p-Xylene 100 96.11 ug/Kg 96 70 - 130
p-Isopropyltoluene 50.0 48.94 ug/Kg 98 70 - 130
sec-Butylbenzene 50.0 48.44 ug/Kg 97 70 - 130
Styrene 50.0 50.33 ug/Kg 101 70 - 130
trans-1,2-Dichloroethene 50.0 46.24 ug/Kg 92 70 - 130
trans-1,3-Dichloropropene 50.0 50.71 ug/Kg 101 70 - 130 tert-Butylbenzene 50.0 48.09 ug/Kg 96 70 - 130
Tetrachloroethene 50.0 45.69 ug/Kg 91 70 - 130
Toluene 50.0 47.19 ug/Kg 94 77 - 120
Trichloroethene 50.0 46.52 ug/Kg 93 70 - 130
Trichlorofluoromethane 50.0 44.58 ug/Kg 89 70 - 130
Vinyl acetate 50.0 55.69 ug/Kg 111 70 - 130
Vinyl chloride 50.0 42.41 ug/Kg 85 68 - 122
Eurofins Calscience LLC

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LCS LCS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 99 80 - 120
Dibromofluoromethane (Surr) 102 79 - 133
Toluene-d8 (Surr) 102 80 - 120
Lab Sample ID: LCSD 570-136182/2-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136236 Prep Batch: 136182
1,1,1,2-Tetrachloroethane 50.0 47.55 ug/Kg 95 70 - 130 2 20 Analyte

LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane 50.0 44.51 ug/Kg 89 70 - 130 4 20 1,1,2,2-Tetrachloroethane 50.0 52.39 ug/Kg 105 70 - 130 2 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne

50.0 40.04 ug/Kg 80 70 - 130 3 20
1,1,2-Trichloroethane 50.0 48.47 ug/Kg 97 70 - 130 4 20 1,1-Dichloroethane 50.0 45.06 ug/Kg 90 70 - 130 4 20
1,1-Dichloroethene 50.0 45.46 ug/Kg 91 74 - 122 4 20
1,1-Dichloropropene 50.0 44.77 ug/Kg 90 70 - 130 4 20
1,2,3-Trichlorobenzene 50.0 48.77 ug/Kg 98 70 - 130 5 20 1,2,3-Trichloropropane 50.0 49.29 ug/Kg 99 70 - 130 3 20 1,2,4-Trichlorobenzene 50.0 49.35 ug/Kg 99 70 - 130 2 20 1,2,4-Trimethylbenzene 50.0 47.41 ug/Kg 95 70 - 130 4 20 1,2-Dibromo-3-Chloropropane 50.0 49.22 ug/Kg 98 70 - 130 3 20 1,2-Dibromoethane 50.0 49.91 ug/Kg 100 70 - 130 1 20
1,2-Dichlorobenzene 50.0 47.84 ug/Kg 96 75 - 120 2 20
1,2-Dichloroethane 50.0 45.67 ug/Kg 91 70 - 130 6 20
1,2-Dichloropropane 50.0 47.19 ug/Kg 94 79 - 115 4 25
1,3,5-Trimethylbenzene 50.0 47.59 ug/Kg 95 70 - 130 2 20 1,3-Dichlorobenzene 50.0 46.65 ug/Kg 93 70 - 130 4 20
1,3-Dichloropropane 50.0 48.49 ug/Kg 97 70 - 130 2 20
1,4-Dichlorobenzene 50.0 45.61 ug/Kg 91 70 - 130 3 20
2,2-Dichloropropane 50.0 48.31 ug/Kg 97 70 - 130 3 20
2-Butanone 50.0 52.32 ug/Kg 105 70 - 130 6 20
2-Chlorotoluene 50.0 46.43 ug/Kg 93 70 - 130 2 20
2-Hexanone 50.0 51.94 ug/Kg 104 70 - 130 5 20
4-Chlorotoluene 50.0 48.57 ug/Kg 97 70 - 130 1 20
4-Methyl-2-pentanone 50.0 48.76 ug/Kg 98 70 - 130 6 20
Acetone 50.0 50.31 ug/Kg 101 70 - 130 7 20
Benzene 50.0 43.12 ug/Kg 86 78 - 120 4 20
Bromobenzene 50.0 46.97 ug/Kg 94 70 - 130 2 20
Bromochloromethane 50.0 47.46 ug/Kg 95 70 - 130 2 20
Bromodichloromethane 50.0 48.85 ug/Kg 98 70 - 130 5 20
Bromoform 50.0 53.33 ug/Kg 107 70 - 130 1 20
Bromomethane 50.0 50.93 ug/Kg 102 70 - 130 4 20
cis-1,2-Dichloroethene 50.0 48.17 ug/Kg 96 70 - 130 3 20 cis-1,3-Dichloropropene 50.0 49.14 ug/Kg 98 70 - 130 4 20 Carbon disulfide 50.0 46.48 ug/Kg 93 70 - 130 4 20
Carbon tetrachloride 50.0 45.38 ug/Kg 91 49 - 139 4 20
Eurofins Calscience LLC

Page 15 of 32 ends

LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
Chloroethane 50.0 46.80 ug/Kg 94 70 - 130 1 20
Chloroform 50.0 47.74 ug/Kg 95 70 - 130 3 20
Chloromethane 50.0 39.64 ug/Kg 79 70 - 130 0 20
Dibromochloromethane 50.0 52.57 ug/Kg 105 70 - 130 2 20 Dibromomethane 50.0 47.92 ug/Kg 96 70 - 130 6 20
Dichlorodifluoromethane 50.0 41.72 ug/Kg 83 70 - 130 0 20 Ethylbenzene 50.0 46.56 ug/Kg 93 76 - 120 2 20
Isopropylbenzene 50.0 47.64 ug/Kg 95 70 - 130 2 20
Methylene Chloride 50.0 46.24 ug/Kg 92 70 - 130 3 20
Methyl-t-Butyl Ether (MTBE) 50.0 46.09 ug/Kg 92 70 - 124 4 20 Naphthalene 50.0 46.78 ug/Kg 94 70 - 130 1 20
n-Butylbenzene 50.0 46.87 ug/Kg 94 77 - 123 4 25
N-Propylbenzene 50.0 46.40 ug/Kg 93 70 - 130 2 20
o-Xylene 50.0 49.43 ug/Kg 99 70 - 130 2 20
m,p-Xylene 100 93.58 ug/Kg 94 70 - 130 3 20
p-Isopropyltoluene 50.0 47.94 ug/Kg 96 70 - 130 2 20
sec-Butylbenzene 50.0 47.17 ug/Kg 94 70 - 130 3 20
Styrene 50.0 49.52 ug/Kg 99 70 - 130 2 20
trans-1,2-Dichloroethene 50.0 44.40 ug/Kg 89 70 - 130 4 20 trans-1,3-Dichloropropene 50.0 48.86 ug/Kg 98 70 - 130 4 20 tert-Butylbenzene 50.0 48.75 ug/Kg 98 70 - 130 1 20
Tetrachloroethene 50.0 44.88 ug/Kg 90 70 - 130 2 20
Toluene 50.0 45.11 ug/Kg 90 77 - 120 4 20
Trichloroethene 50.0 43.99 ug/Kg 88 70 - 130 6 20
Trichlorofluoromethane 50.0 46.56 ug/Kg 93 70 - 130 4 20 Vinyl acetate 50.0 53.52 ug/Kg 107 70 - 130 4 20
Vinyl chloride 50.0 43.04 ug/Kg 86 68 - 122 1 20
1,2-Dichloroethane-d4 (Surr) 71 - 155
Surrogate
100

LCSD LCSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 102 80 - 120
Dibromofluoromethane (Surr) 102 79 - 133
Toluene-d8 (Surr) 102 80 - 120
Lab Sample ID: 570-53807-1 MS Client Sample ID: EP-IDW-01 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136236 Prep Batch: 136182
1,1,1,2-Tetrachloroethane ND 51.8 44.14 ug/Kg 85 70 - 130 Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
1,1,1-Trichloroethane ND 51.8 47.35 ug/Kg 91 70 - 130
1,1,2,2-Tetrachloroethane ND 51.8 45.83 ug/Kg 89 70 - 130 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 51.8 41.81 ug/Kg 81 70 - 130
1,1,2-Trichloroethane ND 51.8 42.48 ug/Kg 82 70 - 130
1,1-Dichloroethane ND 51.8 44.86 ug/Kg 87 70 - 130
1,1-Dichloroethene ND 51.8 45.23 ug/Kg 87 47 - 143
1,1-Dichloropropene ND 51.8 47.83 ug/Kg 92 70 - 130
Eurofins Calscience LLC

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Limits
1,2,3-Trichloropropane ND 51.8 42.57 ug/Kg 82 70 - 130
1,2,4-Trichlorobenzene ND F1 51.8 38.06 ug/Kg 74 70 - 130 1,2,4-Trimethylbenzene ND 51.8 46.30 ug/Kg 89 70 - 130
1,2-Dibromo-3-Chloropropane ND 51.8 39.88 ug/Kg 77 70 - 130 1,2-Dibromoethane ND 51.8 40.08 ug/Kg 77 64 - 124
1,2-Dichlorobenzene ND 51.8 42.29 ug/Kg 82 35 - 131
1,2-Dichloroethane ND 51.8 39.96 ug/Kg 77 70 - 130
1,2-Dichloropropane ND 51.8 43.27 ug/Kg 84 79 - 115
1,3,5-Trimethylbenzene ND 51.8 46.68 ug/Kg 90 70 - 130
1,3-Dichlorobenzene ND 51.8 42.85 ug/Kg 83 70 - 130
1,3-Dichloropropane ND 51.8 40.83 ug/Kg 79 70 - 130
1,4-Dichlorobenzene ND 51.8 40.88 ug/Kg 79 70 - 130
2,2-Dichloropropane ND 51.8 50.35 ug/Kg 97 70 - 130
2-Butanone ND 51.8 49.88 ug/Kg 96 70 - 130
2-Chlorotoluene ND 51.8 44.85 ug/Kg 87 70 - 130
2-Hexanone ND 51.8 45.87 ug/Kg 89 70 - 130
4-Chlorotoluene ND 51.8 44.54 ug/Kg 86 70 - 130
4-Methyl-2-pentanone ND 51.8 42.25 ug/Kg 82 70 - 130
Acetone 27 51.8 71.05 ug/Kg 84 70 - 130
Benzene ND 51.8 42.26 ug/Kg 82 61 - 127
Bromobenzene ND 51.8 41.40 ug/Kg 80 70 - 130
Bromochloromethane ND 51.8 41.01 ug/Kg 79 70 - 130
Bromodichloromethane ND 51.8 43.78 ug/Kg 85 70 - 130
Bromoform ND 51.8 42.48 ug/Kg 82 70 - 130
Bromomethane ND 51.8 47.33 ug/Kg 91 70 - 130
cis-1,2-Dichloroethene ND 51.8 45.26 ug/Kg 87 70 - 130
cis-1,3-Dichloropropene ND 51.8 42.21 ug/Kg 82 70 - 130 Carbon disulfide ND 51.8 48.30 ug/Kg 92 70 - 130
Carbon tetrachloride ND 51.8 47.57 ug/Kg 92 51 - 135
Chlorobenzene ND 51.8 42.38 ug/Kg 82 57 - 123
Chloroethane ND 51.8 41.47 ug/Kg 80 70 - 130
Chloroform ND 51.8 46.22 ug/Kg 89 70 - 130
Chloromethane ND F1 51.8 34.00 F1 ug/Kg 66 70 - 130
Dibromochloromethane ND 51.8 43.66 ug/Kg 84 70 - 130
Dibromomethane ND 51.8 40.02 ug/Kg 77 70 - 130
Dichlorodifluoromethane ND 51.8 41.21 ug/Kg 80 70 - 130 Ethylbenzene ND 51.8 46.31 ug/Kg 89 57 - 129
Isopropylbenzene ND 51.8 48.27 ug/Kg 93 70 - 130
Methylene Chloride ND 51.8 41.82 ug/Kg 81 70 - 130
Methyl-t-Butyl Ether (MTBE) ND 51.8 38.27 ug/Kg 74 57 - 123 Naphthalene ND F1 51.8 33.61 F1 ug/Kg 65 70 - 130
n-Butylbenzene ND 51.8 46.77 ug/Kg 90 77 - 123
N-Propylbenzene ND 51.8 46.82 ug/Kg 90 70 - 130
o-Xylene ND 51.8 47.43 ug/Kg 92 70 - 130
m,p-Xylene ND 104 92.43 ug/Kg 89 70 - 130
p-Isopropyltoluene ND 51.8 47.74 ug/Kg 92 70 - 130
sec-Butylbenzene ND 51.8 47.69 ug/Kg 92 70 - 130
Styrene ND 51.8 44.60 ug/Kg 86 70 - 130
Eurofins Calscience LLC

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Limits
trans-1,3-Dichloropropene ND 51.8 39.56 ug/Kg 76 70 - 130 tert-Butylbenzene ND 51.8 47.89 ug/Kg 93 70 - 130
Tetrachloroethene ND 51.8 45.57 ug/Kg 88 70 - 130
Toluene ND 51.8 44.42 ug/Kg 86 63 - 123
Trichloroethene ND 51.8 44.43 ug/Kg 86 44 - 158
Trichlorofluoromethane ND 51.8 44.07 ug/Kg 85 70 - 130
Vinyl acetate ND 51.8 41.32 ug/Kg 80 70 - 130
Vinyl chloride ND 51.8 38.17 ug/Kg 74 49 - 139
1,2-Dichloroethane-d4 (Surr) 71 - 155
Surrogate
107
MS MS
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 80 - 120
Dibromofluoromethane (Surr) 103 79 - 133
Toluene-d8 (Surr) 102 80 - 120
Lab Sample ID: 570-53807-1 MSD Client Sample ID: EP-IDW-01 Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136236 Prep Batch: 136182
1,1,1,2-Tetrachloroethane ND 50.5 44.60 ug/Kg 88 70 - 130 1 20 Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
1,1,1-Trichloroethane ND 50.5 49.24 ug/Kg 97 70 - 130 4 20 1,1,2,2-Tetrachloroethane ND 50.5 42.78 ug/Kg 85 70 - 130 7 20 1,1,2-Trichloro-1,2,2-trifluoroetha
ne
ND 50.5 41.15 ug/Kg 81 70 - 130 2 20
1,1,2-Trichloroethane ND 50.5 44.37 ug/Kg 88 70 - 130 4 20 1,1-Dichloroethane ND 50.5 47.83 ug/Kg 95 70 - 130 6 20 1,1-Dichloroethene ND 50.5 45.11 ug/Kg 89 47 - 143 0 25 1,1-Dichloropropene ND 50.5 50.26 ug/Kg 100 70 - 130 5 20 1,2,3-Trichlorobenzene ND F1 50.5 33.56 F1 ug/Kg 66 70 - 130 12 20 1,2,3-Trichloropropane ND 50.5 40.58 ug/Kg 80 70 - 130 5 20 1,2,4-Trichlorobenzene ND F1 50.5 34.65 F1 ug/Kg 69 70 - 130 9 20 1,2,4-Trimethylbenzene ND 50.5 46.70 ug/Kg 92 70 - 130 1 20 1,2-Dibromo-3-Chloropropane ND 50.5 37.66 ug/Kg 75 70 - 130 6 20 1,2-Dibromoethane ND 50.5 42.65 ug/Kg 84 64 - 124 6 20
1,2-Dichlorobenzene ND 50.5 39.41 ug/Kg 78 35 - 131 7 25 1,2-Dichloroethane ND 50.5 43.61 ug/Kg 86 70 - 130 9 20 1,2-Dichloropropane ND 50.5 46.74 ug/Kg 93 79 - 115 8 25 1,3,5-Trimethylbenzene ND 50.5 47.29 ug/Kg 94 70 - 130 1 20 1,3-Dichlorobenzene ND 50.5 41.05 ug/Kg 81 70 - 130 4 20 1,3-Dichloropropane ND 50.5 43.58 ug/Kg 86 70 - 130 7 20 1,4-Dichlorobenzene ND 50.5 38.95 ug/Kg 77 70 - 130 5 20 2,2-Dichloropropane ND 50.5 52.83 ug/Kg 105 70 - 130 5 20 2-Butanone ND 50.5 57.22 ug/Kg 113 70 - 130 14 20
2-Chlorotoluene ND 50.5 44.77 ug/Kg 89 70 - 130 0 20
2-Hexanone ND 50.5 46.36 ug/Kg 92 70 - 130 1 20
4-Chlorotoluene ND 50.5 44.11 ug/Kg 87 70 - 130 1 20
4-Methyl-2-pentanone ND 50.5 44.03 ug/Kg 87 70 - 130 4 20 Eurofins Calscience LLC

Page 18 of 32 ends

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Benzene ND 50.5 45.67 ug/Kg 90 61 - 127 8 20
Bromobenzene ND 50.5 41.39 ug/Kg 82 70 - 130 0 20
Bromochloromethane ND 50.5 43.86 ug/Kg 87 70 - 130 7 20 Bromodichloromethane ND 50.5 46.85 ug/Kg 93 70 - 130 7 20 Bromoform ND 50.5 40.70 ug/Kg 81 70 - 130 4 20
Bromomethane ND 50.5 49.70 ug/Kg 98 70 - 130 5 20
cis-1,2-Dichloroethene ND 50.5 48.38 ug/Kg 96 70 - 130 7 20 cis-1,3-Dichloropropene ND 50.5 45.23 ug/Kg 90 70 - 130 7 20 Carbon disulfide ND 50.5 45.92 ug/Kg 90 70 - 130 5 20
Carbon tetrachloride ND 50.5 49.41 ug/Kg 98 51 - 135 4 29 Chlorobenzene ND 50.5 43.65 ug/Kg 86 57 - 123 3 20
Chloroethane ND 50.5 41.14 ug/Kg 81 70 - 130 1 20
Chloroform ND 50.5 49.02 ug/Kg 97 70 - 130 6 20
Chloromethane ND F1 50.5 36.19 ug/Kg 72 70 - 130 6 20
Dibromochloromethane ND 50.5 45.05 ug/Kg 89 70 - 130 3 20 Dibromomethane ND 50.5 43.33 ug/Kg 86 70 - 130 8 20
Dichlorodifluoromethane ND 50.5 40.57 ug/Kg 80 70 - 130 2 20 Ethylbenzene ND 50.5 47.90 ug/Kg 95 57 - 129 3 22
Isopropylbenzene ND 50.5 47.85 ug/Kg 95 70 - 130 1 20
Methylene Chloride ND 50.5 45.35 ug/Kg 90 70 - 130 8 20 Methyl-t-Butyl Ether (MTBE) ND 50.5 43.29 ug/Kg 86 57 - 123 12 21 Naphthalene ND F1 50.5 30.72 F1 ug/Kg 61 70 - 130 9 20
n-Butylbenzene ND 50.5 46.95 ug/Kg 93 77 - 123 0 21
N-Propylbenzene ND 50.5 47.76 ug/Kg 95 70 - 130 2 20
o-Xylene ND 50.5 48.62 ug/Kg 96 70 - 130 2 20
m,p-Xylene ND 101 95.46 ug/Kg 95 70 - 130 3 20
p-Isopropyltoluene ND 50.5 47.86 ug/Kg 95 70 - 130 0 20 sec-Butylbenzene ND 50.5 48.47 ug/Kg 96 70 - 130 2 20
Styrene ND 50.5 44.81 ug/Kg 89 70 - 130 0 20
trans-1,2-Dichloroethene ND 50.5 47.17 ug/Kg 93 70 - 130 4 20 trans-1,3-Dichloropropene ND 50.5 41.20 ug/Kg 82 70 - 130 4 20 tert-Butylbenzene ND 50.5 48.62 ug/Kg 96 70 - 130 1 20
Tetrachloroethene ND 50.5 47.32 ug/Kg 94 70 - 130 4 20
Toluene ND 50.5 47.37 ug/Kg 94 63 - 123 6 20
Trichloroethene ND 50.5 47.01 ug/Kg 93 44 - 158 6 20
Trichlorofluoromethane ND 50.5 43.36 ug/Kg 86 70 - 130 2 20 Vinyl acetate ND 50.5 42.76 ug/Kg 85 70 - 130 3 20
Vinyl chloride ND 50.5 42.63 ug/Kg 84 49 - 139 11 47
1,2-Dichloroethane-d4 (Surr) 71 - 155
Surrogate
105

MSD MSD
%Recovery Qualifier Limits
4-Bromofluorobenzene (Surr) 101 80 - 120
Dibromofluoromethane (Surr) 103 79 - 133
Toluene-d8 (Surr) 103 80 - 120
Eurofins Calscience LLC

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15 QC Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 8015B - Diesel Range Organics (DRO) (GC)
Lab Sample ID: MB 570-136343/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136311 Prep Batch: 136343
RL
C6 as C6 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac C7 as C7 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C8 as C8 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C9-C10 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C11-C12 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C13-C14 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C15-C16 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C17-C18 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C19-C20 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C21-C22 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C23-C24 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C25-C28 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C29-C32 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C33-C36 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C37-C40 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C41-C44 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
C6-C44 ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1
Diesel Range Organics [C10-C28] ND 5.0 mg/Kg 03/16/21 14:05 03/16/21 23:20 1 n-Octacosane (Surr) 86 60 - 138 03/16/21 23:20 1
MB MB
Surrogate
03/16/21 14:05
%Recovery Qualifier Limits Prepared Analyzed Dil Fac
Lab Sample ID: LCS 570-136343/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136311 Prep Batch: 136343
Diesel Range Organics
[C10-C28]
400 432.0 mg/Kg 108 80 - 130
Analyte

LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
n-Octacosane (Surr) 60 - 138
Surrogate
85 LCS LCS
%Recovery Qualifier Limits
Lab Sample ID: LCSD 570-136343/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136311 Prep Batch: 136343
Diesel Range Organics
[C10-C28]
400 446.0 mg/Kg 112 80 - 130 3 20
Analyte

LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
n-Octacosane (Surr) 60 - 138
Surrogate
87 LCSD LCSD
%Recovery Qualifier Limits
Eurofins Calscience LLC

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6.2 402 438.9 mg/Kg 108 43 - 165
Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
n-Octacosane (Surr) 60 - 138
Surrogate
86 MS MS
%Recovery Qualifier Limits
Lab Sample ID: 570-53646-A-4-B MSD Client Sample ID: Matrix Spike Duplicate Matrix: Solid Prep Type: Total/NA
Analysis Batch: 136311 Prep Batch: 136343
Diesel Range Organics
[C10-C28]

6.2 393 445.4 mg/Kg 112 43 - 165 1 35
Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
n-Octacosane (Surr) 60 - 138
Surrogate
94 MSD MSD
%Recovery Qualifier Limits
Method: 6010B - Metals (ICP)
Lab Sample ID: MB 570-136938/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
RL
Antimony ND 2.96 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Arsenic ND 2.46 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Barium ND 0.493 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Beryllium ND 0.246 mg/Kg 03/18/21 15:00 03/19/21 10:14 1 Cadmium ND 0.493 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Chromium ND 0.985 mg/Kg 03/18/21 15:00 03/19/21 10:14 1 Cobalt ND 0.985 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Copper ND 0.985 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Lead ND 4.93 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Molybdenum ND 0.493 mg/Kg 03/18/21 15:00 03/19/21 10:14 1 Nickel ND 0.493 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Selenium ND 4.93 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Silver ND 0.985 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Thallium ND 4.93 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Vanadium ND 0.985 mg/Kg 03/18/21 15:00 03/19/21 10:14 1 Zinc ND 9.85 mg/Kg 03/18/21 15:00 03/19/21 10:14 1
Lab Sample ID: LCS 570-136938/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
Antimony 25.3 26.68 mg/Kg 106 80 - 120
Analyte

LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
Arsenic 25.3 24.33 mg/Kg 96 80 - 120
Barium 25.3 26.89 mg/Kg 106 80 - 120
Eurofins Calscience LLC

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15 QC Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 6010B - Metals (ICP) (Continued)
Lab Sample ID: LCS 570-136938/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
Beryllium 25.3 25.01 mg/Kg 99 80 - 120
Analyte

LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
Cadmium 25.3 24.99 mg/Kg 99 80 - 120
Chromium 25.3 25.27 mg/Kg 100 80 - 120
Cobalt 25.3 25.20 mg/Kg 100 80 - 120
Copper 25.3 25.76 mg/Kg 102 80 - 120
Lead 25.3 25.62 mg/Kg 101 80 - 120
Molybdenum 25.3 25.84 mg/Kg 102 80 - 120
Nickel 25.3 26.52 mg/Kg 105 80 - 120
Selenium 25.3 24.29 mg/Kg 96 80 - 120
Silver 12.6 12.62 mg/Kg 100 80 - 120
Thallium 25.3 26.68 mg/Kg 106 80 - 120
Vanadium 25.3 24.49 mg/Kg 97 80 - 120
Zinc 25.3 25.63 mg/Kg 101 80 - 120
Lab Sample ID: LCSD 570-136938/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
Antimony 24.9 27.05 mg/Kg 109 80 - 120 1 20
Analyte

LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
Arsenic 24.9 24.54 mg/Kg 99 80 - 120 1 20
Barium 24.9 26.43 mg/Kg 106 80 - 120 2 20
Beryllium 24.9 24.80 mg/Kg 100 80 - 120 1 20
Cadmium 24.9 24.73 mg/Kg 99 80 - 120 1 20
Chromium 24.9 24.93 mg/Kg 100 80 - 120 1 20
Cobalt 24.9 24.92 mg/Kg 100 80 - 120 1 20
Copper 24.9 25.49 mg/Kg 102 80 - 120 1 20
Lead 24.9 25.68 mg/Kg 103 80 - 120 0 20
Molybdenum 24.9 25.78 mg/Kg 104 80 - 120 0 20
Nickel 24.9 26.12 mg/Kg 105 80 - 120 2 20
Selenium 24.9 23.63 mg/Kg 95 80 - 120 3 20
Silver 12.4 12.41 mg/Kg 100 80 - 120 2 20
Thallium 24.9 25.24 mg/Kg 101 80 - 120 6 20
Vanadium 24.9 24.12 mg/Kg 97 80 - 120 2 20
Zinc 24.9 25.12 mg/Kg 101 80 - 120 2 20
Lab Sample ID: 570-54150-A-5-B MS Client Sample ID: Matrix Spike Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
Antimony ND F1 26.0 11.68 F1 mg/Kg 45 50 - 115
Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
Arsenic 3.94 26.0 29.43 mg/Kg 98 75 - 125
Barium 34.4 F1 26.0 76.81 F1 mg/Kg 163 75 - 125
Beryllium 0.258 26.0 27.17 mg/Kg 103 75 - 125
Cadmium ND 26.0 25.59 mg/Kg 98 75 - 125
Chromium 2.51 26.0 28.80 mg/Kg 101 75 - 125
Cobalt 1.89 26.0 28.19 mg/Kg 101 75 - 125
Copper 3.41 26.0 30.07 mg/Kg 102 75 - 125
Eurofins Calscience LLC

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15 QC Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 6010B - Metals (ICP) (Continued)
Lab Sample ID: 570-54150-A-5-B MS Client Sample ID: Matrix Spike Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
Lead ND 26.0 30.34 mg/Kg 104 75 - 125
Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
Molybdenum ND 26.0 26.22 mg/Kg 101 75 - 125
Nickel 2.68 26.0 30.48 mg/Kg 107 75 - 125
Selenium ND 26.0 21.29 mg/Kg 82 75 - 125
Silver ND 13.0 13.16 mg/Kg 101 75 - 125
Thallium ND 26.0 24.83 mg/Kg 95 75 - 125
Vanadium 7.87 26.0 34.04 mg/Kg 100 75 - 125
Zinc ND 26.0 34.82 mg/Kg 99 75 - 125
Lab Sample ID: 570-54150-A-5-C MSD Client Sample ID: Matrix Spike Duplicate Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137251 Prep Batch: 136938
Antimony ND F1 25.9 10.68 F1 mg/Kg 41 50 - 115 9 20
Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Arsenic 3.94 25.9 30.54 mg/Kg 103 75 - 125 4 20
Barium 34.4 F1 25.9 87.53 F1 mg/Kg 205 75 - 125 13 20
Beryllium 0.258 25.9 27.00 mg/Kg 103 75 - 125 1 20
Cadmium ND 25.9 25.16 mg/Kg 97 75 - 125 2 20
Chromium 2.51 25.9 28.59 mg/Kg 101 75 - 125 1 20
Cobalt 1.89 25.9 26.79 mg/Kg 96 75 - 125 5 20
Copper 3.41 25.9 29.69 mg/Kg 101 75 - 125 1 20
Lead ND 25.9 29.24 mg/Kg 100 75 - 125 4 20
Molybdenum ND 25.9 25.35 mg/Kg 98 75 - 125 3 20
Nickel 2.68 25.9 29.00 mg/Kg 102 75 - 125 5 20
Selenium ND 25.9 21.94 mg/Kg 85 75 - 125 3 20
Silver ND 13.0 13.07 mg/Kg 101 75 - 125 1 20
Thallium ND 25.9 24.64 mg/Kg 95 75 - 125 1 20
Vanadium 7.87 25.9 33.55 mg/Kg 99 75 - 125 1 20
Zinc ND 25.9 35.43 mg/Kg 102 75 - 125 2 20
Method: 7471A - Mercury (CVAA)
Lab Sample ID: MB 570-136940/1-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137221 Prep Batch: 136940
RL
Mercury ND 0.0877 mg/Kg 03/18/21 15:00 03/19/21 11:30 1 MB MB
Analyte Result Qualifier Unit D Prepared Analyzed Dil Fac Lab Sample ID: LCS 570-136940/2-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137221 Prep Batch: 136940
Mercury 0.820 0.8204 mg/Kg 100 85 - 121
Analyte

LCS LCS
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits
Eurofins Calscience LLC

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15 QC Sample Results
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method: 7471A - Mercury (CVAA) (Continued)
Lab Sample ID: LCSD 570-136940/3-A Client Sample ID: Lab Control Sample Dup Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137221 Prep Batch: 136940
Mercury 0.806 0.8081 mg/Kg 100 85 - 121 2 10
Analyte

LCSD LCSD
Result Qualifier Unit D %Rec
Spike
Added
%Rec.

Limits RPD Limit
RPD
Lab Sample ID: 570-54150-A-5-E MS Client Sample ID: Matrix Spike Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137221 Prep Batch: 136940
Mercury ND 0.806 0.7923 mg/Kg 98 71 - 137
Analyte
MS MS
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits
Lab Sample ID: 570-54150-A-5-F MSD Client Sample ID: Matrix Spike Duplicate Matrix: Solid Prep Type: Total/NA
Analysis Batch: 137221 Prep Batch: 136940
Mercury ND 0.833 0.8099 mg/Kg 97 71 - 137 2 14
Analyte

MSD MSD
Result Qualifier Unit D %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec.

Limits RPD Limit
RPD
Eurofins Calscience LLC

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15 QC Association Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B

GC/MS VOA
Prep Batch: 136182
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 5030C
MB 570-136182/3-A Method Blank Total/NA Solid 5030C
LCS 570-136182/1-A Lab Control Sample Total/NA Solid 5030C LCSD 570-136182/2-A Lab Control Sample Dup Total/NA Solid 5030C 570-53807-1 MS EP-IDW-01 Total/NA Solid 5030C
570-53807-1 MSD EP-IDW-01 Total/NA Solid 5030C
Analysis Batch: 136236
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 8260B 136182
MB 570-136182/3-A Method Blank Total/NA Solid 8260B 136182 LCS 570-136182/1-A Lab Control Sample Total/NA Solid 8260B 136182 LCSD 570-136182/2-A Lab Control Sample Dup Total/NA Solid 8260B 136182 570-53807-1 MS EP-IDW-01 Total/NA Solid 8260B 136182
570-53807-1 MSD EP-IDW-01 Total/NA Solid 8260B 136182
GC Semi VOA
Analysis Batch: 136311
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 8015B 136343
MB 570-136343/1-A Method Blank Total/NA Solid 8015B 136343 LCS 570-136343/2-A Lab Control Sample Total/NA Solid 8015B 136343 LCSD 570-136343/3-A Lab Control Sample Dup Total/NA Solid 8015B 136343 570-53646-A-4-A MS Matrix Spike Total/NA Solid 8015B 136343 570-53646-A-4-B MSD Matrix Spike Duplicate Total/NA Solid 8015B 136343 Prep Batch: 136343
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 3550C
MB 570-136343/1-A Method Blank Total/NA Solid 3550C
LCS 570-136343/2-A Lab Control Sample Total/NA Solid 3550C LCSD 570-136343/3-A Lab Control Sample Dup Total/NA Solid 3550C 570-53646-A-4-A MS Matrix Spike Total/NA Solid 3550C
570-53646-A-4-B MSD Matrix Spike Duplicate Total/NA Solid 3550C Metals
Prep Batch: 136938
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 3050B
MB 570-136938/1-A Method Blank Total/NA Solid 3050B
LCS 570-136938/2-A Lab Control Sample Total/NA Solid 3050B LCSD 570-136938/3-A Lab Control Sample Dup Total/NA Solid 3050B 570-54150-A-5-B MS Matrix Spike Total/NA Solid 3050B
570-54150-A-5-C MSD Matrix Spike Duplicate Total/NA Solid 3050B Prep Batch: 136940
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 7471A
MB 570-136940/1-A Method Blank Total/NA Solid 7471A
LCS 570-136940/2-A Lab Control Sample Total/NA Solid 7471A Eurofins Calscience LLC

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15 QC Association Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Metals (Continued)
Prep Batch: 136940 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch LCSD 570-136940/3-A Lab Control Sample Dup Total/NA Solid 7471A 570-54150-A-5-E MS Matrix Spike Total/NA Solid 7471A
570-54150-A-5-F MSD Matrix Spike Duplicate Total/NA Solid 7471A Analysis Batch: 137221
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 7471A 136940
MB 570-136940/1-A Method Blank Total/NA Solid 7471A 136940 LCS 570-136940/2-A Lab Control Sample Total/NA Solid 7471A 136940 LCSD 570-136940/3-A Lab Control Sample Dup Total/NA Solid 7471A 136940 570-54150-A-5-E MS Matrix Spike Total/NA Solid 7471A 136940 570-54150-A-5-F MSD Matrix Spike Duplicate Total/NA Solid 7471A 136940 Analysis Batch: 137251
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 570-53807-1 EP-IDW-01 Total/NA Solid 6010B 136938
MB 570-136938/1-A Method Blank Total/NA Solid 6010B 136938 LCS 570-136938/2-A Lab Control Sample Total/NA Solid 6010B 136938 LCSD 570-136938/3-A Lab Control Sample Dup Total/NA Solid 6010B 136938 570-54150-A-5-B MS Matrix Spike Total/NA Solid 6010B 136938 570-54150-A-5-C MSD Matrix Spike Duplicate Total/NA Solid 6010B 136938 Eurofins Calscience LLC

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15 Lab Chronicle
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Client Sample ID: EP-IDW-01 Lab Sample ID: 570-53807-1
Date Collected: 03/12/21 18:20 Matrix: Solid
Date Received: 03/15/21 10:15
Prep 5030C 136182 03/16/21 11:27 BE5H ECL 2
Type
Batch
Method
Batch
Prep Type Run Analyst Lab
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
Factor Number
Dil
Total/NA 5.05 g 5 mL
Total/NA Analysis 8260B 1 5 mL 5 mL 136236 03/16/21 11:57 BE5H ECL 2 Instrument ID: GCMSGGG
Total/NA Prep 3550C 9.97 g 10 mL 136343 03/16/21 14:07 EM5C ECL 1 Total/NA Analysis 8015B 1 136311 03/17/21 03:11 N1A ECL 1 Instrument ID: GC48
Total/NA Prep 3050B 2.02 g 100 mL 136938 03/18/21 15:00 SP7J ECL 1 Total/NA Analysis 6010B 1 137251 03/19/21 11:01 ULPF ECL 1 Instrument ID: ICP8
Total/NA Prep 7471A 0.59 g 100 mL 136940 03/18/21 15:00 SP7J ECL 1 Total/NA Analysis 7471A 1 137221 03/19/21 12:06 VYQ5 ECL 1 Instrument ID: HG7
Laboratory References:

ECL 1 = Eurofins Calscience LLC Lincoln, 7440 Lincoln Way, Garden Grove, CA 92841, TEL (714)895-5494 ECL 2 = Eurofins Calscience LLC Lampson, 7445 Lampson Ave, Garden Grove, CA 92841, TEL (714)895-5494 Eurofins Calscience LLC

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15 Accreditation/Certification Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Laboratory: Eurofins Calscience LLC
All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report.

Authority Program Identification Number Expiration Date California Los Angeles County Sanitation 10109
Districts
09-30-21
California SCAQMD LAP 17LA0919 11-30-21
California State 2944 09-30-21
Guam State 20-003R 10-31-20 *
Nevada State CA00111 07-31-21
Oregon NELAP CA300001 01-30-22
USDA US Federal Programs P330-20-00034 02-10-23
Washington State C916-18 10-11-21
Eurofins Calscience LLC
* Accreditation/Certification renewal pending - accreditation/certification considered valid.

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15 Method Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Method Method Description Protocol Laboratory
8260B Volatile Organic Compounds (GC/MS) SW846 ECL 2
8015B Diesel Range Organics (DRO) (GC) SW846 ECL 1
6010B Metals (ICP) SW846 ECL 1
7471A Mercury (CVAA) SW846 ECL 1
3050B Preparation, Metals SW846 ECL 1
3550C Ultrasonic Extraction SW846 ECL 1
5030C Purge and Trap SW846 ECL 2
7471A Preparation, Mercury SW846 ECL 1
Protocol References:

SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.

Laboratory References:

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15 Sample Summary
Client: Geosyntec Consultants, Inc. Job ID: 570-53807-1 Project/Site: Edison Park Waste Delineation / HL1685B
Lab Sample ID Client Sample ID Matrix Collected Received Asset ID 570-53807-1 EP-IDW-01 Solid 03/12/21 18:20 03/15/21 10:15 Eurofins Calscience LLC

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15 Login Sample Receipt Checklist
Client: Geosyntec Consultants, Inc. Job Number: 570-53807-1 Login Number: 53807
Question Answer Comment
Creator: Soriano, Precy
List Source: Eurofins Calscience
List Number: 1
Radioactivity wasn't checked or is </= background as measured by a survey N/A meter.

The cooler's custody seal, if present, is intact. True
Sample custody seals, if present, are intact. True
The cooler or samples do not appear to have been compromised or True tampered with.

Samples were received on ice. True
Cooler Temperature is acceptable. True
Cooler Temperature is recorded. True
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. True
Is the Field Sampler's name present on COC? True
There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs)
Sample containers have legible labels. True
Containers are not broken or leaking. True
Sample collection date/times are provided. True
Appropriate sample containers are used. True
Sample bottles are completely filled. True
Sample Preservation Verified. True
There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs
Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4").

Multiphasic samples are not present. True
Samples do not require splitting or compositing. True
Residual Chlorine Checked. N/A
Eurofins Calscience Page 32 of 32 3/19/2021
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15 ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 1 10-08-2020
Mr. John Farmer
American Integrated Services
1502 E. Opp Street
Wilmington, CA 90744
Project: HB-40219
Project Site: 21377 Magnolia St., Huntington Beach, CA 92646 Sample Date: 10-02-2020
Lab Job No.: A010003
Dear Mr. Farmer:

Enclosed please find the analytical report for the sample(s) received by Alpha Scientific Corporation on 10-02-2020 and analyzed by the following EPA methods:

EPA 8015M (Total Petroleum Hydrocarbons)
EPA 8260B (VOCs & Oxygenates by GC/MS)
EPA 6010B/7471A for CAM Metals
All analyses have met the QA/QC criteria of this laboratory.

The sample(s) arrived in good conditions (i.e., chilled, intact) and with a chain of custody record attached.

Alpha Scientific Corporation is a CA ELAP certified laboratory (Certificate Number 3007). Thank you for giving us the opportunity to serve you. Please feel free to call me at (562) 809-8880 if our laboratory can be of further service to you.

Sincerely,
Roger Wang, Ph.D.

Laboratory Director
Enclosures
This cover letter is an integral part of this analytical report.

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 2 Client: American Integrated Services Lab Job No.: A010003 Project: HB-40219
Project Site: 21377 Magnolia St., Huntington Beach, CA 92646 Date Sampled: 10-02-2020 Matrix: Soil Date Received: 10-02-2020
Batch No. for TPH-g: AMJ02-GS1 Date Analyzed: 10-02-2020 Batch No. for TPH-d&o:BJ05-DS1 Date Analyzed: 10-05-2020 Date Reported: 10-08-2020
EPA 8015M (Total Petroleum Hydrocarbons)
Reporting Unit: mg/kg (ppm)
Sample ID Lab ID DF
for TPH-G
C4-C12
TPH-G*
Surrog
Rec.%
TPH-G
DF
for

TPH-D/O
C13-C23
TPH-D
C24-C40
TPH-O
Surrog
Rec.%

TPH-D/O
MDL 0.2 2 20
PQL 0.5 5 40
Method Blank 1 ND 91 1 ND ND 98
DRM-1,
DRM-2,
DRM-3
A010003-1,2,3
1 ND 93 1 11.5 67.5 100
* Gasoline Range TPH result is obtained from purge and trap analysis using LUFT-GC/MS method; MDL: Method Detection Limit;
PQL: Practical Quantitation Limit;
ND: Not Detected (below MDL);
J: Result is between MDL and PQL.;
Note: Surrogate recovery acceptance limits are 70-130%.

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 3 Client: American Integrated Services Lab Job No.: A010003 Date Reported: 10-08-2020 Project: HB-40219 Matrix: Soil Date Sampled: 10-02-2020 EPA 8260B (VOCs by GC/MS, Page 1 of 2)
Reporting Unit: :g/kg(ppb)
DATE ANALYZED 10-02 10-02-20
DILUTION FACTOR 11
LAB SAMPLE I.D. MB A010003-1,2,3
CLIENT SAMPLE I.D.

DRM-1,
DRM-2,
DRM-3

COMPOUND MDL PQL
Dichlorodifluoromethane 2 5 ND ND
Chloromethane 2 5 ND ND
Vinyl Chloride 2 5 ND ND
Bromomethane 2 5 ND ND
Chloroethane 2 5 ND ND
Trichlorofluoromethane 2 5 ND ND
1,1-Dichloroethene 2 5 ND ND
Iodomethane 2 5 ND ND
Methylene Chloride 5 10 ND ND
trans-1,2-Dichloroethene 2 5 ND ND
1,1-Dichloroethane 2 5 ND ND
2,2-Dichloropropane 2 5 ND ND
cis-1,2-Dichloroethene 2 5 ND ND
Bromochloromethane 2 5 ND ND
Chloroform 2 5 ND ND
1,2-Dichloroethane (EDC) 2 5 ND ND
1,1,1-Trichloroethane 2 5 ND ND
Carbon tetrachloride 2 5 ND ND
1,1-Dichloropropene 2 5 ND ND
Benzene 1 2 ND ND
Trichloroethene 2 5 ND ND
1,2-Dichloropropane 2 5 ND ND
Bromodichloromethane 2 5 ND ND
Dibromomethane 2 5 ND ND
Trans-1,3-Dichloropropene 2 5 ND ND
cis-1,3-Dichloropropene 2 5 ND ND
1,1,2-Trichloroethane 2 5 ND ND
1,3-Dichloropropane 2 5 ND ND
Dibromochloromethane 2 5 ND ND
2-Chloroethylvinyl ether 2 10 ND ND
Bromoform 2 5 ND ND
Isopropylbenzene 2 5 ND ND
Bromobenzene 2 5 ND ND
Toluene 1 2 ND ND

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 4 Client: American Integrated Services Lab Job No.: A010003 Date Reported:10-08-2020 Project: HB-40219 Matrix: Soil Date Sampled: 10-02-2020 EPA 8260B (VOCs by GC/MS, Page 2 of 2) Reporting Unit: ppb

COMPOUND MDL PQL MB
DRM-1,
DRM-2,
DRM-3
Tetrachloroethene 2 5 ND ND
1,2-Dibromoethane(EDB) 2 5 ND ND
Chlorobenzene 2 5 ND ND
1,1,1,2-Tetrachloroethane 2 5 ND ND
Ethylbenzene 1 2 ND ND
Total Xylenes 2 4 ND ND
Styrene 2 5 ND ND
1,1,2,2-Tetrachloroethane 2 5 ND ND
1,2,3-Trichloropropane 2 5 ND ND
n-Propylbenzene 2 5 ND ND
2-Chlorotoluene 2 5 ND ND
4-Chlorotoluene 2 5 ND ND
1,3,5-Trimethylbenzene 2 5 ND ND
tert-Butylbenzene 2 5 ND ND
1,2,4-Trimethylbenzene 2 5 ND ND
Sec-Butylbenzene 2 5 ND ND
1,3-Dichlorobenzene 2 5 ND ND
p-Isopropyltoluene 2 5 ND ND
1,4-Dichlorobenzene 2 5 ND ND
1,2-Dichlorobenzene 2 5 ND ND
n-Butylbenzene 2 5 ND ND
1,2,4-Trichlorobenzene 2 5 ND ND
1,2-Dibromo-3-Chloropropane 2 5 ND ND
Hexachlorobutadiene 2 5 ND ND
Naphthalene 2 5 ND ND
1,2,3-Trichlorobenzene 2 5 ND ND
Acetone 75 100 ND ND
2-Butanone (MEK) 50 100 ND ND
Carbon Disulfide 25 50 ND ND
4-Methyl-2-pentanone 50 100 ND ND
2-Hexanone 50 100 ND ND
Vinyl Acetate 25 50 ND ND
Ethanol 500 1000 ND ND
MTBE 2 5 ND ND
ETBE 2 5 ND ND
DIPE 2 5 ND ND
TAME 2 5 ND ND
TBA 20 50 ND ND
SURROGATE Accept Limit% %RC %RC
Dibromofluoro-methane 79-126 98 98
Toluene-d8 79-121 95 96
Bromofluoro-benzene 71-131 94 96
MB=Method Blank; MDL=Method Detection Limit; PQL=Practical Quantitation Limit; ND=Not Detected (below DF × MDL); J=Result is between DF × MDL and DF × PQL. m=Matrix interference.

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 5 Client: American Integrated Services Lab Job No.: A010003 Project: HB-40219
Project Site: 21377 Magnolia St., Huntington Beach, CA 92646 Date Sampled: 10-02-2020 Matrix: Soil Date Received: 10-02-2020
Digestion Method: EPA 3050B Date Digested: 10-05-2020
Batch No.: 1005-MS1 Date Analyzed: 10-05-2020
Date Reported: 10-08-2020
EPA 6010B/7471A for CAM Metals (TTLC)
Reporting Units: mg/kg (ppm)
Element
EPA Method
Blank
A010003-1,2,3 MDL PQL
Method
DRM-1,
DRM-2,
DRM-3
Antimony (Sb) 6010B ND 2.0 1 2
Arsenic (As) 6010B ND 7.6 0.5 1
Barium (Ba) 6010B ND 120 1 2
Beryllium (Be) 6010B ND ND 1 2
Cadmium (Cd) 6010B ND ND 1 2
Chromium (Cr) 6010B ND 24.4 1 2
Cobalt (Co) 6010B ND 11.7 1 2
Copper (Cu) 6010B ND 37.2 1 2
Lead (Pb) 6010B ND 58.0 1 2
Molybdenum
(Mo) 6010B ND 1.7J 12
Nickel (Ni) 6010B ND ND 1 2
Selenium (Se) 6010B ND ND 0.5 1
Silver (Ag) 6010B ND ND 1 2
Thallium (Tl) 6010B ND ND 1 2
Vanadium (V) 6010B ND 100 1 2
Zinc (Zn) 6010B ND 125 1 2
Mercury (Hg) 7471A ND ND 0.1 0.2
MDL: Method Detection Limit;
PQL: Practical Quantitation Limit;
ND: Not Detected (less than MDL);
J: Result is between MDL and PQL.

1. ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 6 10-08-2020
TPH-Gasoline
Batch QA/QC Report
Client: American Integrated Services Lab Job No: A010003 Project: HB-40219
Matrix: Soil Lab Sample I.D.: EA010004-1
Batch No: AMJ02-GS1 Date Analyzed: 10-02-2020
I. MS/MSD Report
Unit: ppb
Analyte Sample
Conc.

Spike
Conc.

MS MSD MS
%Rec.

MSD
%Rec.
% RPD %RPD
Accept.

Limit
%Rec
Accept.

Limit
TPH-g ND 1,000 843 871 84.3 87.1 3.3 30 70-130
II. LCS Result
Unit: ppb
Analyte LCS Value True Value Rec.% Accept. Limit
TPH-g 877 1,000 87.7 80-120
ND: Not Detected (at the specified limit).

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 7 10-08-2020
EPA 8015M (TPH)
Batch QA/QC Report
Client: American Integrated Services Lab Job No: A010003 Project: HB-40219
Matrix: Soil Lab Sample I.D.: EA010005-1
Batch No: BJ05-DS1 Date Analyzed: 10-05-2020
I. MS/MSD Report
Unit: ppm
Analyte Sample
Conc.

Spike
Conc.

MS MSD MS
%Rec.

MSD
%Rec.
% RPD %RPD
Accept.

Limit
%Rec
Accept.

Limit
TPH-D ND 200 160 199 80.0 99.5 21.7 30 70-130
II. LCS Result
Unit: ppm
Analyte LCS Value True Value Rec.% Accept. Limit
TPH-D 191 200 95.5 80-120
ND: Not Detected (at the specified limit)

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 8 10-08-2020
EPA 8260B
Batch QA/QC Report
Client: American Integrated Services Lab Job No: A010003 Project: HB-40219
Matrix: Soil Lab Sample I.D.: EA010004-2
Batch No: 1002-VOAS1 Date Analyzed: 10-03-2020
I. MS/MSD Report
Unit: ppb
Analyte Sample
Conc.

Spike
Conc.

MS MSD MS
%Rec.

MSD
%Rec.
% RPD %RPD
Accept.

Limit
%Rec
Accept.

Limit
1,1-
Dichloroethene
ND 20 18.1 16.8 90.5 84.0 7.4 30 70-130
Benzene ND 20 19.8 19.2 99.0 96.0 3.1 30 70-130
TrichloroetheneND 20 20.4 18.9 102.0 94.5 7.6 30 70-130 Toluene ND 20 19.4 18.5 97.0 92.5 4.7 30 70-130
Chlorobenzene ND 20 20.1 19.3 100.5 96.5 4.1 30 70-130
II. LCS Result
Unit: ppb
Analyte LCS Value True Value Rec.% Accept. Limit
1,1-Dichloroethene 16.5 20 82.5 80-120
Benzene 19.1 20 95.5 80-120
Trichloro-ethene 19.0 20 95.0 80-120
Toluene 19.4 20 97.0 80-120
Chlorobenzene 18.5 20 92.5 80-120
ND: Not Detected (at the specified limit).

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 9 10-08-2020
EPA 6010B/7471A for CAM Metals (TTLC)
Batch QA/QC Report
Client: American Integrated Services Lab Job No: A010003 Project: HB-40219
Matrix: Soil Lab Sample I.D.: EA010004-1
Batch No.: 1005-MS1 Date Analyzed: 10-05-2020
I. MS/MSD Report
Unit: ppm
Analyte EPA Method Sample
Conc.

Spike
Conc.

MS
%Rec.

MSD
%Rec.
% RPD %RPD
Accept.

Limit
%Rec
Accept.

Limit
Antimony (Sb) 6010B 2.2 10 99.4 102.2 2.8 30 70-130
Arsenic (As) 6010B 1.5 10 93.6 96.9 3.5 30 70-130
Barium (Ba) 6010B 106 10 93.8 93.4 0.5 30 70-130
Beryllium (Be) 6010B ND 10 89.3 88.7 0.7 30 70-130
Cadmium (Cd) 6010B ND 10 98.8 99.3 0.4 30 70-130
Chromium (Cr) 6010B 18.1 10 94.0 92.6 1.4 30 70-130
Cobalt (Co) 6010B 9.2 10 100.8 96.0 4.9 30 70-130
Copper (Cu) 6010B 25.2 10 104.8 98.6 6.1 30 70-130
Lead (Pb) 6010B 26.9 10 96.9 96.7 0.3 30 70-130
Molybdenum
(Mo) 6010B ND 10 101.7 101.9 0.2 30 70-130
Nickel (Ni) 6010B ND 10 91.1 93.1 2.1 30 70-130
Selenium (Se) 6010B ND 10 100.1 100.9 0.7 30 70-130
Silver (Ag) 6010B ND 10 110.5 113.7 2.9 30 70-130
Thallium (Tl) 6010B ND 10 89.2 88.0 1.3 30 70-130
Vanadium (V) 6010B 71.6 10 95.1 94.4 0.8 30 70-130
Zinc (Zn) 6010B 58.5 10 98.0 98.3 0.2 30 70-130
ND: Not Detected.

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 10 10-08-2020
EPA 6010B/7471A for CAM Metals
Batch QA/QC Report
Client: American Integrated Services Lab Job No: A010003 Project: HB-40219
Matrix: Soil Lab Sample I.D.: LCS
Batch No.: 1005-MS1 Date Analyzed: 10-05-2020
II. LCS Result
Unit: ppm
Analyte EPA Method LCS Value True Value Rec.% Accept. Limit Antimony (Sb) 6010B 11.25 10 112.5 80-120
Arsenic (As) 6010B 9.877 10 98.8 80-120
Barium (Ba) 6010B 9.760 10 97.6 80-120
Beryllium (Be) 6010B 9.451 10 94.5 80-120
Cadmium (Cd) 6010B 10.49 10 104.9 80-120
Chromium (Cr) 6010B 9.681 10 96.8 80-120
Cobalt (Co) 6010B 10.50 10 105.0 80-120
Copper (Cu) 6010B 9.770 10 97.7 80-120
Lead (Pb) 6010B 10.28 10 102.8 80-120
Molybdenum
(Mo) 6010B 10.15 10 101.5 80-120
Nickel (Ni) 6010B 10.40 10 104.0 80-120
Selenium (Se) 6010B 10.41 10 104.1 80-120
Silver (Ag) 6010B 10.86 10 108.6 80-120
Thallium (Tl) 6010B 10.44 10 104.4 80-120
Vanadium (V) 6010B 9.403 10 94.0 80-120
Zinc (Zn) 6010B 10.58 10 105.8 80-120
ND: Not Detected (at the specified limit).

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 1 10-12-2020
Mr. John Farmer
American Integrated Services
1502 E. Opp Street
Wilmington, CA 90744
Project: HB-40219
Project Site: 21377 Magnolia St., Huntington Beach, CA 92646 Sample Date: 10-02-2020
Lab Job No.: A010003A
Dear Mr. Farmer:

Enclosed please find the analytical report for the sample(s) received by Alpha Scientific Corporation on 10-02-2020 and analyzed by the following EPA methods
EPA 6010B (Lead, STLC)
All analyses have met the QA/QC criteria of this laboratory.

The sample(s) arrived in good conditions (i.e., chilled, intact) and with a chain of custody record attached.

Sincerely,
Roger Wang, Ph.D.

Laboratory Director
Enclosures
This cover letter is an integral part of this analytical report.

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 2 Client: American Integrated Services Lab Job No.: A010003A Project: HB-40219
Project Site: 21377 Magnolia St., Huntington Beach, CA 92646 Date Sampled: 10-02-2020 Matrix: Soil Date Received: 10-02-2020
Batch No.: 1012-MS1 Date Analyzed: 10-12-2020
Date Reported: 10-12-2020
EPA 6010B (Lead, STLC)
Reporting Unit: mg/L (ppm)
Sample ID Lab ID Lead (Pb), STLC
MDL 0.1
PQL 0.2
Extraction Blank ND
DRM-1,
DRM-2,
DRM-3
A010003-1,2,3 1.52
Note: Sample Preparation: Extraction Procedures, STLC Metals, Title 22, Chapter 11, Appendix II-1, 48 hours (10-07 to 10-09-2020).

MDL: Method Dectection Limit;
PQL: Practical Quantitation Limit;
ND: Not Detected (Below MDL)
J: Result is between MDL and PQL.

ALPHA SCIENTIFIC CORPORATION
Environmental Laboratories
16760 Gridley Road, Cerritos, CA 90703 Phone: (562) 809-8880, [email protected] 3 10-12-2020
EPA 6010B (Lead)
Batch QA/QC Report
Client: American Integrated Services Lab Job No: A010003A Project: HB-40219
Matrix: Soil Lab Sample I.D.: A010016-1
Batch No.: 1012-MS1 Date Analyzed: 10-12-2020
I. MS/MSD Report
Unit: ppm
Analyte Sample
Conc.

Spike
Conc.

MS
%Rec.

MSD
%Rec.
% RPD %RPD
Accept.

Limit
%Rec
Accept.

Limit
Lead (Pb) 19.6 10 100.8 103.9 3.0 30 70-130
II. LCS Result
Unit: ppm
Analyte LCS Value True Value Rec.% Accept. Limit
Lead (Pb) 10.58 10.0 105.8 80-120
ND: Not Detected (at the specified limit).

APPENDIX C
GEOSYNTEC (2023) GEOPHYSICAL OIL WELL

LOCATING SURVEY REPORT
3530 Hyland Ave., Suite 100
Costa Mesa, California 92626
PH 714.969.0800
FAX 714.969.0820
www.geosyntec.com
SC1369 Edison Park Geophysical Oil Well Locating Survey Letter Report 27 July 2023
Mr. Patrick Bannon
Capital Projects Administrator
Public Works Department – Engineering
City of Huntington Beach
2000 Main Street
Huntington Beach, California 92648
Subject: Letter Report – Geophysical Oil Well Locating Survey Edison Park, Huntington Beach, California
Dear Mr. Bannon:

Geosyntec Consultants, Inc. (Geosyntec) prepared this letter report for the City of Huntington Beach, Public Works Department (City). This letter documents the geophysical survey performed to locate the existing oil wells at the Edison Park, located at 21377 Magnolia Street, Huntington Beach, California (Site). The services documented in this letter were performed in general accordance with the Professional Services Contract between the City and Geosyntec for As-Needed General Environmental Engineering Services, dated February 2021 and the scope of work described in our proposal dated July 3, 2023.

BACKGROUND AND PROJECT UNDERSTANDING
A review of the State of California Geologic Energy Management Division (CalGEM) database indicated the presence of two historical oil wells [Aldrich Fee #1 (API:
0405905847) and Aldrich #2 (API: 0405901101)] located at the northeast corner of the Site, within the approximate areas of proposed park improvements. The status of the two oil wells are listed as “plugged” per CalGEM’s database. While CalGEM records provide the approximate locations of the wells, the exact locations of these oil wells were unknown/needed to be confirmed to avoid potential disturbance to the wells.

Accordingly, the objective of this project was to perform a non-intrusive geophysical survey to attempt to identify the interpreted locations of the two oil wells at the Site.

GEOPHYSICAL SURVEY
Geosyntec retained the services of a GEOVision Geophysical Services (GEOVision), a geophysical specialty subcontractor to perform geophysical mapping survey at and near Mr. Patrick Bannon
27 July 2023

Page 2 ends

SC1369 Edison Park Geophysical Oil Well Locating Survey Letter Report the approximate locations of the two subject oil wells. The geophysical survey was performed on July 18, 2023, under the observation of Geosyntec field personnel.

The approximate location of the two oil wells were identified in the field using a Geometrics G858 cesium magnetometer (G858). This instrument measures the intensity of the magnetic field of the earth. Metallic-cased oil wells generally give rise to very high amplitude and broad magnetic anomalies and can typically be located using a magnetometer.

Once positive anomalies were detected for the two subject oil wells, magnetic data was acquired along a rectangular grid centered on the expected well locations. The magnetometer was used in conjunction with a Global Positioning System (GPS) for spatial control. The magnetometer was used to identify the magnetic field maxima associated with the well casing, the location of which was surveyed using GPS. The magnetic data and spatial data were stored in the instruments internal memory and downloaded to a laptop computer upon completion of the survey for data processing and interpretation.

Additional details on the geophysical method, field procedures, data processing, and results are provided in the Geophysical Oil Well Locating Survey Report prepared by GEOVision and included here as Attachment A. Geosyntec’s Daily Field Report with photo logs summarizing the field activities is included here as Attachment B.

Approximate interpreted locations of the centers of the two Oil Wells based on the geophysical interpretation are shown in Figure 1 and summarized in Table 1.

Table 1. Approximate Interpreted Coordinates of the Center of the Identified Oil Wells
Oil Well Name Interpreted
Easting (US
Survey Feet)
Interpreted
Northing (US
Survey Feet)
Aldrich Fee #1 6037822.8 2185799.7
Aldrich #2 6037540.1 2185767.1

LIMITATIONS
Please note, the geophysical survey to locate the existing wells is a non-intrusive method and results can be affected by several factors that include soil characteristics at the site, Mr. Patrick Bannon
27 July 2023

Page 3 ends

SC1369 Edison Park Geophysical Oil Well Locating Survey Letter Report condition of the well casing and soil cover. The accuracy of the location identified by this method can vary and is generally considered approximate. The actual location of the well will require confirmation/verification via intrusive (i.e., excavation) work.

CLOSURE
We appreciate the opportunity to assist the City on this important project. Should you have any questions about this letter or require additional information, please do not hesitate to call Yonas Zemuy at (714) 465-1256.

Sincerely,
Sneha Upadhyaya, Ph.D., E.I.T. (CA)
Senior Staff Professional
Yonas Zemuy, P.E. (AZ, CA, NV)
Senior Principal Engineer
Attachments:

Figure 1 – Approximate Inferred Locations of the Oil Wells Attachment A: GEOVision Geophysical Oil Well Locating Survey Report Attachment B: Geosyntec Daily Field Report
SC1369 Edison Park Geophysical Oil Well Locating Survey Letter Report FIGURE
Aldrich Fee #1
Aldrich #2
PROJECT NO:

FIGURE N:\CACADD\E\EDISION PARK\EDISON PARK-SC1369\FIGURES\1369F001 - Last Saved by: KViswanathan on 7/25/23

APPROXIMATE INFERRED LOCATION OF THE

OIL WELLS

GEOPHYSICAL OIL WELL LOCATING SURVEY

EDISON PARK

HUNTINGTON BEACH, CALIFORNIA
JULY 2023 1SC1369 0 50

SCALE IN FEET N

STILWELL DR MAGNOLIA ST
LEGEND

APPROXIMATE LIMITS OF

EXISTING CANNERY STREET

FORMER REFUSE DISPOSAL
STATION WASTE [TRC, 2001]

LATERAL LIMITS OF WASTE

MATERIAL DELINATED DURING
GEOSYNTEC 2020 AND 2021

EXPLORATIONS

INTERPRETED LOCATION OF OIL
WELL
AERIAL BACKGROUND IMAGERY: © 2023
MICROSOFT CORPORATION, © 2023 MAXAR, © CNES (2023) DISTRIBUTION AIRBUS DS SC1369 Edison Park Geophysical Oil Well Locating Survey Letter Report ATTACHMENT A: GEOVISION GEOPHYSICAL

OIL WELL LOCATING SURVEY REPORT
1124 Olympic Dr., Corona, CA 92881 ph. 951-549-1234 fax 951-549-1236 www.geovision.com July 25, 2023
Project Number 23241
Mr. Yonas Zemuy
Geosyntec Consultants
3530 Hyland Avenue, Suite 100
Costa Mesa, California 92625
Subject: Steel Oil Well Location at 21377 Magnolia Street, Huntington Beach, California
Mr. Zemuy:

On July 18th, 2023, a geophysical investigation was conducted for two suspected oil wells at the site located above, in Edison Park in the city of Huntington Beach.

METHODOLOGY
The geophysical instrument used during this investigation consisted of a Geometrics G858 optically pumped cesium-vapor magnetometer (G858). This magnetometer measures the intensity of the earth's magnetic field in nanoteslas (nT) and, optionally, the vertical gradient of the earth’s magnetic field in nanoteslas per meter (nT/m). Buried ferrous metallic objects give rise to anomalies in the earth’s magnetic field. These anomalies are generally dipolar with a positive response south and a negative response north of the object. The dimensions and amplitude of a magnetic anomaly are a function of the size, mass, depth, and magnetic properties of the source. Magnetometers can typically locate a metallic-cased oil well to depths of over 15 feet providing background noise levels are not too high and the steel is not extensively corroded.

FIELD PROCEDURE
Before conducting a magnetic survey, an attempt was made to locate each of the existing oil wells using the magnetometer in search mode. Two areas with anomalies were relatively clear and therefore a magnetic survey was conducted in these areas. The magnetometer was used in conjunction with the GPS system for spatial control. GPS data were collected in the geodetic coordinate system and then converted to California State Plane 1983, NAD83 (Conus), Zone VI (0406) in US Survey Feet, during data processing.

Positions were taken using a Spectra Precision GPS system with Centerpoint RTX corrections.

Prior to data acquisition, the G858 was programmed with the appropriate sampling interval and GPS input settings. Spatial information was sent to the console at 1 second intervals using a GGA NMEA stream. Magnetic data and spatial data were downloaded 23241 Geosyntec Huntington Page 2 July 25, 2023
1124 Olympic Dr., Corona, CA 92881 ph. 951-549-1234 fax 951-549-1236 www.geovision.com to a laptop computer at the end of the survey using the program MAGMAP 2000 by Geometrics, Inc.

Details on the geophysical method can be found in the attached technical note titled “Magnetic Method”.

DATA PROCESSING
A color-enhanced contour map of the magnetic data was generated using the GEOSOFT® Oasis montaj TM geophysical mapping system. The map was colorenhanced to aid in the interpretation of subtle anomalies. Prior to map generation, a number of preprocessing steps were completed and included:
• Backup of all original field data files to computer.
• Correcting of all data acquisition errors (typically removing null data and erroneous GPS points).
• Reformatting field data files to free format XYZ files containing at a minimum GPS time and field measurements.
• Merging GPS position data and geophysical data using commercial and in-house software.
• Merging of multiple data files into a single file and sorting, if necessary. • Converting of data files to State Plane northings and eastings.

These data adjustments were made using a combination of commercial and proprietary software. Adjustments made to data files and resulting file names were documented and are retained in project files.

The output of the data preprocessing was a data file containing the magnetic total field response. Data processing steps included the following:
• Reformatting of data files to GEOSOFT® format.
• Generating final map scale.
• Gridding data using down- and cross-line splines or minimum curvature. • Masking grid in areas where data not acquired (i.e. around site perimeter or building).
• Applying Hanning filter to smooth the data, as necessary. • Generating color zone file describing color for different data ranges. • Contouring the data.
• Generating map surrounds (title block, legend, scale, color bar, north arrow, etc.). • Annotating anomalies.
• Merging various plot files and plotting final map.

The names of the files generated and the processing parameters used were documented and are retained in project files. Files generated during the processing sequence were archived on a backup drive.

RESULTS
A site map with geophysical interpretation is presented in Figure 1. A map of total magnetic field response of the surveyed areas is presented in Figure 2. The coordinates 23241 Geosyntec Huntington Page 3 July 25, 2023
1124 Olympic Dr., Corona, CA 92881 ph. 951-549-1234 fax 951-549-1236 www.geovision.com shown on the maps reference the California State Plane, NAD83 (Conus), Zone VI (0406), US survey feet coordinate system. The color bar indicates the amplitude of the measured quantity with magenta and dark blue indicating high and low amplitudes, respectively. Light orange, yellow, and light green indicate average "background" values of the measured quantity. A typical magnetic oil well response is a round anomaly that is high in amplitude, shown in the attached Technical Note. However, atypical magnetic oil well responses can occur, though less common.

There were two broad, positive high amplitude anomalies located within the surveyed areas, with values over 48,000 nT, indicative of metal oil wells. For reference, background magnetic field strength at this site was around 46,000 nT. GPS locations from the approximate center of each such anomaly are provided in Table 1. The characteristics of the anomalies indicate that the top of the metallic casings are likely located within the upper 15 feet. Other anomalies such as buried electric lines, an unknown line, and a small buried metallic object located within the survey area are labeled on the figures.

Well Name Interpreted Easting
(US Survey feet)
Interpreted Northing
(US Survey feet)
Peak
Amplitude (nT)
Aldrich Fee 1 6037822.8 2185799.7 49,800
Aldrich 2 6037540.1 2185767.1 48,300
Table 1: Coordinates of Possible Oil Well Anomalies
We recommend the source of each anomaly is uncovered to confirm its source and location.

If you have any questions concerning this investigation, please call us at 951-549-1234, or email at [email protected].

Sincerely,
GEOVision Geophysical Services
Emily Feldman, PGp Project Geophysicist
Attachments:

Figure 1 – Site Map with Geophysical Interpretation
Figure 2 – Total Magnetic Field Response
Technical Note – Magnetic Method
Notes:

Coordinate System: NAD 1983 StatePlane California VI FIPS 0406 Feet Base map source: City of Huntington Beach (2022), Maxar Street Light Pole
Monitoring Well
Small Buried Metallic Object / Debris
Underground Electric Line
Underground Utility Line (Unknown type)
Interpreted Location of Oil Well

CREATED FOR

GEOSYNTEC

SITE LOCATED AT
21377 MAGNOLIA ST

HUNTINGTON BEACH, CALIFORNIA
FIGURE 1

SITE MAP

WITH GEOPHYSICAL INTERPRETATION
7/25/2023
23241
E Feldman
T Rodriguez
A Martin
GV_23241
Date:

GV Project:

Developed by:

Drawn by:

Approved by:

File Name:

Stilwell Dr
Vault
MW B
2 1
2185900 2185850 2185800 2185750 2185700 2185650
2185900 2185850 2185800 2185750 2185700 2185650
6037450 6037500 6037550 6037600 6037650 6037700 6037750 6037800 6037850 6037900 6037450 6037500 6037550 6037600 6037650 6037700 6037750 6037800 6037850 6037900 25 12.5 0 25 50
US Survey Feet
Easting (US Ft)
Northing (US Ft)

MAGNETIC METHOD
The magnetic method involves the measurement of the earth's magnetic field intensity. Typically the total magnetic field and/or vertical magnetic gradient is measured. Measurements of the horizontal or vertical component or horizontal gradient of the magnetic field may also be made.

Anomalies in the earth's magnetic field are caused by induced or remanent magnetism. Induced magnetic anomalies are the result of secondary magnetization induced in a ferrous body by the earth’s magnetic field. The shape, dimensions, and amplitude of an induced magnetic anomaly is a function of the orientation, geometry, size, depth, and magnetic susceptibility of the body as well as the intensity and inclination of the earth's magnetic field in the survey area. Buried ferrous metallic objects, such as pipes, drums, tanks, and debris generally give rise to dipolar anomalies with a positive response south and a negative response north of the object. The magnetic method is an effective way to search for small metallic objects because magnetic anomalies have spatial dimensions much larger than those of the objects. An oil well typically gives rise to a monopolar anomaly with a very high amplitude, positive peak several feet south of the well and a low amplitude, broad negative response to the north. The magnetic anomaly over a buried oil well often has a diameter of over 50 feet and amplitude of several thousand nanoteslas, depending on depth and casing characteristics. Magnetometers can typically locate an abandoned oil well to depths of over 20 feet providing that background noise levels are not too high and the well casing is not significantly corroded. Magnetometers are not able to detect nonferrous metals such as aluminum and brass.

Geometrics G-858 Magnetometer
The magnetic method is typically used to:
 Locate abandoned steel well casings
 Locate buried tanks and pipes
 Locate pits and trenches containing
buried metallic debris
 Detect buried unexploded ordnance
(UXO)
 Map old waste sites and landfill
boundaries
 Clear drilling locations
 Map basement faults and geology
 Investigate archaeological sites
1124 Olympic Drive, Corona, California 92881, ph. 951-549-1234, fx. 951-549-1236, www.geovision.com Magnetic Survey to Locate
Abandoned Oil Wells
Magnetic Survey to Locate Pits Containing
Buried Metallic Containers
SC1369 Edison Park Geophysical Oil Well Locating Survey Letter Report ATTACHMENT B: GEOSYNTEC DAILY FIELD
REPORT

DAILY FIELD REPORT
PROJECT: Edison Park Geotech Support
LOCATION: Huntington Beach, California PROJECT NO.: SC1369 TASK NO.: 03 DESCRIPTION: Geophysical Oil Well Locating Survey CONTRACTOR: GEOVision DAY OF WEEK: Tuesday DATE: July 18, 2023
WEATHER: Sunny, Low 64°F High 82°F
1 of 3
Time Field Work Activities
0700 S. Upadhyaya (Geosyntec) arrived on site at the Edison Park and met with GEOVision crew E. Feldman and E. Vasquez. 0705 Geosyntec and GEOVision discussed health and safety. 0710 GEOVision started the geophysical oil well locating survey at the northeastern corner of the Edison Park using the Geometrics G858 cesium magnetometer. Other equipment used included Fisher metal detector and Ground Penetrating Radar (GPR).
0730-
0945
GEOVision detected strong anomalies that were identified as the potential location of the two oil wells. GEOVision collected magnetic data around the center of the identified approximate locations of the two wells and surveyed the approximate location of the two oil wells using GPS units. GEOVision also marked the approximate centers of the wells in the field using stakes/whiskers (flushed to ground).
0945 GEOVision completed the survey.
1000 GEOVision departed the site. S. Upadhyaya (Geosyntec) measured straight line distances to the oil wells from atleast three fixed objects and removed the “No Parking” signs per City’s request. 1030 Geosyntec departed the site.

Hours on-site: 3.5 hrs; Travel time: 0.5 hrs

APPENDIX D
ASCE7 HAZARD TOOL OUTPUT
ASCE 7 Hazards Report
Address:

No Address at This Location
Standard: ASCE/SEI 7-16 Latitude: 33.652693
Risk Category: II Longitude: -117.9721
Soil Class: D - Default (see
Section 11.4.3)
Elevation: 6.7946934949892395 ft
(NAVD 88)
https://asce7hazardtool.online/ Page 1 of 3 Mon Sep 11 2023 SS : 1.391
S1 : 0.502
Fa : 1.2
Fv : N/A
SMS : 1.67
SM1 : N/A
SDS : 1.113
SD1 : N/A
TL : 8
PGA : 0.606
PGA M : 0.728
FPGA : 1.2
Ie : 1
Cv : 1.378
Seismic
Site Soil Class:

Results:

Data Accessed:

Date Source:

D - Default (see Section 11.4.3)
USGS Seismic Design Maps
Ground motion hazard analysis may be required. See ASCE/SEI 7-16 Section 11.4.8.

Mon Sep 11 2023
https://asce7hazardtool.online/ Page 2 of 3 Mon Sep 11 2023 The ASCE 7 Hazard Tool is provided for your convenience, for informational purposes only, and is provided “as is” and without warranties of any kind. The location data included herein has been obtained from information developed, produced, and maintained by third party providers; or has been extrapolated from maps incorporated in the ASCE 7 standard. While ASCE has made every effort to use data obtained from reliable sources or methodologies, ASCE does not make any representations or warranties as to the accuracy, completeness, reliability, currency, or quality of any data provided herein. Any third-party links provided by this Tool should not be construed as an endorsement, affiliation, relationship, or sponsorship of such third-party content by or from ASCE.

ASCE does not intend, nor should anyone interpret, the results provided by this Tool to replace the sound judgment of a competent professional, having knowledge and experience in the appropriate field(s) of practice, nor to substitute for the standard of care required of such professionals in interpreting and applying the contents of this Tool or the ASCE 7 standard.

In using this Tool, you expressly assume all risks associated with your use. Under no circumstances shall ASCE or its officers, directors, employees, members, affiliates, or agents be liable to you or any other person for any direct, indirect, special, incidental, or consequential damages arising from or related to your use of, or reliance on, the Tool or any information obtained therein. To the fullest extent permitted by law, you agree to release and hold harmless ASCE from any and all liability of any nature arising out of or resulting from any use of data provided by the ASCE 7 Hazard Tool.
https://asce7hazardtool.online/ Page 3 of 3 Mon Sep 11 2023 Site Number: NM-1
Recorded By: Dennis Dinh, Darshan Shivaiah
Job Number: 208581
Date: 7/31/2025
Time: 10:54 a.m.

Location: In front of 21362 Breton Lane
Source of Ambient Noise: Traffic along Breton Lane
Noise Data
Leq (dB) Lmin (dB) Lmax (dB)

50.4 35.4 74.6
Equipment
Category Type Vendor Model Serial No. Cert. Date Note
Sound
Sound Level Meter Brüel & Kjær 2250 3011133 06/04/2023
Microphone Brüel & Kjær 4189 3086765 06/04/2023
Preamp Brüel & Kjær ZC 0032 25380 06/04/2023
Calibrator Brüel & Kjær 4231 2545667 06/04/2023
Weather Data
Est.

Duration: 10 minutes Sky: Cloudy
Note: dBA Offset = -0.01 Sensor Height (ft): 5 ft
Wind Ave Speed (mph / m/s) Temperature (degrees Fahrenheit) Barometer Pressure (inches) 6 71 30.06
Photo of Measurement Location

2250
Instrument: 2250
Application: BZ7225 Version 4.7.6
Start Time: 07/31/2025 10:54:06
End Time: 07/31/2025 11:04:06
Elapsed Time: 00:10:00
Bandwidth: 1/3-octave
Max Input Level: 142.20
Time Frequency
Broadband (excl. Peak): FSI AC
Broadband Peak: C
Spectrum: FS Z
Instrument Serial Number: 3011133
Microphone Serial Number: 3086765
Input: Top Socket
Windscreen Correction: UA-1650
Sound Field Correction: Free-field
Calibration Time: 07/31/2025 10:44:30
Calibration Type: External reference
Sensitivity: 43.22599619627 mV/Pa
EDISON_001
Start End Elapsed Overload LAeq LAFmax LAFmin
time time time [%] [dB] [dB] [dB]
Value 0.00 50.4 74.6 35.4
Time 10:54:06 AM 11:04:06 AM 0:10:00
Date 07/31/2025 07/31/2025
Cursor: (A) Leq=50.4 dB LFmax=74.6 dB LFmin=35.4 dB
EDISON_001

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 10 20
30 40
50 60
70 80
90 100
110
120
130
dB 07/31/2025 10:54:06 AM - 11:04:06 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.0% Cumulative: 0.0%
EDISON_001
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 10:54:06 AM - 11:04:06 AM dB
L1 = 63.0 dB
L5 = 53.8 dB
L10 = 49.7 dB
L50 = 42.5 dB
L90 = 38.9 dB
L95 = 38.3 dB
L99 = 37.6 dB
Level Cumulative
Cursor: 07/31/2025 10:59:05 AM - 10:59:06 AM LAIeq=57.5 dB LAFmax=56.0 dB LCpeak=70.5 dB LAFmin=40.2 dB EDISON_001
10:55:00 AM 10:57:00 AM 10:59:00 AM 11:01:00 AM 11:03:00 AM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_001
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 57.5 56.0 40.2
Time 10:59:05 AM 0:00:01
Date 07/31/2025
Cursor: (A) Leq=49.2 dB
EDISON_001

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 10:59:05 AM - 10:59:06 AM
Hz
LZeq
Cursor: 07/31/2025 10:54:06 AM - 11:00:00 AM LAIeq=58.0 dB LAFmax=74.6 dB LCpeak=86.3 dB LAFmin=37.5 dB EDISON_001 Periodic reports
11:00:00 AM 11:10:00 AM 11:20:00 AM 11:30:00 AM 11:40:00 AM 11:50:00 AM 12:00:00 PM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_001 Periodic reports
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 58.0 74.6 37.5
Time 10:54:06 AM 0:05:54
Date 07/31/2025
Cursor: (A) Leq=51.5 dB LFmax=74.6 dB LFmin=37.5 dB
EDISON_001 Periodic reports

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 10:54:06 AM - 11:00:00 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.0% Cumulative: 0.0%
EDISON_001 Periodic reports
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 10:54:06 AM - 11:00:00 AM dB
L1 = 63.7 dB
L5 = 54.6 dB
L10 = 50.1 dB
L50 = 42.9 dB
L90 = 39.9 dB
L95 = 39.3 dB
L99 = 38.4 dB
Level Cumulative
Site Number: NM-2
Recorded By: Dennis Dinh, Darshan Shivaiah
Job Number: 208581
Date: 7/31/2025
Time: 11:11 a.m.

Location: In front of 8931 Stilwell Drive
Source of Ambient Noise: Traffic along Stilwell Drive
Noise Data
Leq (dB) Lmin (dB) Lmax (dB)

53.3 41.2 67.8
Equipment
Category Type Vendor Model Serial No. Cert. Date Note
Sound
Sound Level Meter Brüel & Kjær 2250 3011133 06/04/2023
Microphone Brüel & Kjær 4189 3086765 06/04/2023
Preamp Brüel & Kjær ZC 0032 25380 06/04/2023
Calibrator Brüel & Kjær 4231 2545667 06/04/2023
Weather Data
Est.

Duration: 10 minutes Sky: Cloudy
Note: dBA Offset = -0.01 Sensor Height (ft): 5 ft
Wind Ave Speed (mph / m/s) Temperature (degrees Fahrenheit) Barometer Pressure (inches) 6 72 30.06
Photo of Measurement Location

2250
Instrument: 2250
Application: BZ7225 Version 4.7.6
Start Time: 07/31/2025 11:11:58
End Time: 07/31/2025 11:21:58
Elapsed Time: 00:10:00
Bandwidth: 1/3-octave
Max Input Level: 142.20
Time Frequency
Broadband (excl. Peak): FSI AC
Broadband Peak: C
Spectrum: FS Z
Instrument Serial Number: 3011133
Microphone Serial Number: 3086765
Input: Top Socket
Windscreen Correction: UA-1650
Sound Field Correction: Free-field
Calibration Time: 07/31/2025 10:44:30
Calibration Type: External reference
Sensitivity: 43.22599619627 mV/Pa
EDISON_002
Start End Elapsed Overload LAeq LAFmax LAFmin
time time time [%] [dB] [dB] [dB]
Value 0.00 53.3 67.8 41.2
Time 11:11:58 AM 11:21:58 AM 0:10:00
Date 07/31/2025 07/31/2025
Cursor: (A) Leq=53.3 dB LFmax=67.8 dB LFmin=41.2 dB
EDISON_002

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 10 20
30 40
50 60
70 80
90 100
110
120
130
dB 07/31/2025 11:11:58 AM - 11:21:58 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.0% Cumulative: 0.0%
EDISON_002
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 11:11:58 AM - 11:21:58 AM dB
L1 = 61.6 dB
L5 = 58.8 dB
L10 = 57.2 dB
L50 = 50.0 dB
L90 = 44.9 dB
L95 = 43.6 dB
L99 = 42.2 dB
Level Cumulative
Cursor: 07/31/2025 11:16:57 AM - 11:16:58 AM LAIeq=50.9 dB LAFmax=50.3 dB LCpeak=71.0 dB LAFmin=44.8 dB EDISON_002
11:12:00 AM 11:14:00 AM 11:16:00 AM 11:18:00 AM 11:20:00 AM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_002
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 50.9 50.3 44.8
Time 11:16:57 AM 0:00:01
Date 07/31/2025
Cursor: (A) Leq=47.3 dB
EDISON_002

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 11:16:57 AM - 11:16:58 AM
Hz
LZeq
Cursor: 07/31/2025 11:11:58 AM - 12:11:58 PM LAIeq=55.5 dB LAFmax=67.8 dB LCpeak=87.6 dB LAFmin=41.2 dB EDISON_002 Periodic reports
11:20:00 AM 11:30:00 AM 11:40:00 AM 11:50:00 AM 12:00:00 PM 12:10:00 PM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_002 Periodic reports
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 55.5 67.8 41.2
Time 11:11:58 AM 0:10:00
Date 07/31/2025
Cursor: (A) Leq=53.3 dB LFmax=67.8 dB LFmin=41.2 dB
EDISON_002 Periodic reports

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 11:11:58 AM - 11:21:58 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.0% Cumulative: 0.0%
EDISON_002 Periodic reports
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 11:11:58 AM - 11:21:58 AM dB
L1 = 61.6 dB
L5 = 58.8 dB
L10 = 57.2 dB
L50 = 50.0 dB
L90 = 44.9 dB
L95 = 43.6 dB
L99 = 42.2 dB
Level Cumulative
Site Number: NM-3
Recorded By: Dennis Dinh, Darshan Shivaiah
Job Number: 208581
Date: 7/31/2025
Time: 11:25 a.m.

Location: In front of Edison High School
Source of Ambient Noise: Traffic along Magnolia Street
Noise Data
Leq (dB) Lmin (dB) Lmax (dB)

68.1 49.9 82.5
Equipment
Category Type Vendor Model Serial No. Cert. Date Note
Sound
Sound Level Meter Brüel & Kjær 2250 3011133 06/04/2023
Microphone Brüel & Kjær 4189 3086765 06/04/2023
Preamp Brüel & Kjær ZC 0032 25380 06/04/2023
Calibrator Brüel & Kjær 4231 2545667 06/04/2023
Weather Data
Est.

2250
Instrument: 2250
Application: BZ7225 Version 4.7.6
Start Time: 07/31/2025 11:25:30
End Time: 07/31/2025 11:35:30
Elapsed Time: 00:10:00
Bandwidth: 1/3-octave
Max Input Level: 142.20
Time Frequency
Broadband (excl. Peak): FSI AC
Broadband Peak: C
Spectrum: FS Z
Instrument Serial Number: 3011133
Microphone Serial Number: 3086765
Input: Top Socket
Windscreen Correction: UA-1650
Sound Field Correction: Free-field
Calibration Time: 07/31/2025 10:44:30
Calibration Type: External reference
Sensitivity: 43.22599619627 mV/Pa
EDISON_003
Start End Elapsed Overload LAeq LAFmax LAFmin
time time time [%] [dB] [dB] [dB]
Value 0.00 68.1 82.5 49.9
Time 11:25:30 AM 11:35:30 AM 0:10:00
Date 07/31/2025 07/31/2025
Cursor: (A) Leq=68.1 dB LFmax=82.5 dB LFmin=49.9 dB
EDISON_003

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 10 20
30 40
50 60
70 80
90 100
110
120
130
dB 07/31/2025 11:25:30 AM - 11:35:30 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.1% Cumulative: 1.3%
EDISON_003
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 11:25:30 AM - 11:35:30 AM dB
L1 = 78.9 dB
L5 = 74.0 dB
L10 = 72.1 dB
L50 = 62.7 dB
L90 = 54.2 dB
L95 = 53.0 dB
L99 = 51.6 dB
Level Cumulative
Cursor: 07/31/2025 11:30:29 AM - 11:30:30 AM LAIeq=62.6 dB LAFmax=64.4 dB LCpeak=87.2 dB LAFmin=59.8 dB EDISON_003
11:26:00 AM 11:28:00 AM 11:30:00 AM 11:32:00 AM 11:34:00 AM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_003
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 62.6 64.4 59.8
Time 11:30:29 AM 0:00:01
Date 07/31/2025
Cursor: (A) Leq=61.5 dB
EDISON_003

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 11:30:29 AM - 11:30:30 AM
Hz
LZeq
Cursor: 07/31/2025 11:25:30 AM - 12:25:30 PM LAIeq=69.7 dB LAFmax=82.5 dB LCpeak=101.3 dB LAFmin=49.9 dB EDISON_003 Periodic reports
11:30:00 AM 11:40:00 AM 11:50:00 AM 12:00:00 PM 12:10:00 PM 12:20:00 PM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_003 Periodic reports
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 69.7 82.5 49.9
Time 11:25:30 AM 0:10:00
Date 07/31/2025
Cursor: (A) Leq=68.1 dB LFmax=82.5 dB LFmin=49.9 dB
EDISON_003 Periodic reports

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 11:25:30 AM - 11:35:30 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.1% Cumulative: 1.3%
EDISON_003 Periodic reports
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 11:25:30 AM - 11:35:30 AM dB
L1 = 78.9 dB
L5 = 74.0 dB
L10 = 72.1 dB
L50 = 62.7 dB
L90 = 54.2 dB
L95 = 53.0 dB
L99 = 51.6 dB
Level Cumulative
Site Number: NM-4
Recorded By: Dennis Dinh, Darshan Shivaiah
Job Number: 208581
Date: 7/31/2025
Time: 11:41 a.m.

Location: In between 9001 and 9021 Regatta Drive
Source of Ambient Noise: Traffic along Magnolia Street and Regatta Drive; construction noise Noise Data
Leq (dB) Lmin (dB) Lmax (dB)

53.7 45.1 63.3
Equipment
Category Type Vendor Model Serial No. Cert. Date Note
Sound
Sound Level Meter Brüel & Kjær 2250 3011133 06/04/2023
Microphone Brüel & Kjær 4189 3086765 06/04/2023
Preamp Brüel & Kjær ZC 0032 25380 06/04/2023
Calibrator Brüel & Kjær 4231 2545667 06/04/2023
Weather Data
Est.

2250
Instrument: 2250
Application: BZ7225 Version 4.7.6
Start Time: 07/31/2025 11:41:41
End Time: 07/31/2025 11:51:41
Elapsed Time: 00:10:00
Bandwidth: 1/3-octave
Max Input Level: 142.20
Time Frequency
Broadband (excl. Peak): FSI AC
Broadband Peak: C
Spectrum: FS Z
Instrument Serial Number: 3011133
Microphone Serial Number: 3086765
Input: Top Socket
Windscreen Correction: UA-1650
Sound Field Correction: Free-field
Calibration Time: 07/31/2025 10:44:30
Calibration Type: External reference
Sensitivity: 43.22599619627 mV/Pa
EDISON_004
Start End Elapsed Overload LAeq LAFmax LAFmin
time time time [%] [dB] [dB] [dB]
Value 0.00 53.7 63.3 45.1
Time 11:41:41 AM 11:51:41 AM 0:10:00
Date 07/31/2025 07/31/2025
Cursor: (A) Leq=53.7 dB LFmax=63.3 dB LFmin=45.1 dB
EDISON_004

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 10 20
30 40
50 60
70 80
90 100
110
120
130
dB 07/31/2025 11:41:41 AM - 11:51:41 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.0% Cumulative: 0.0%
EDISON_004
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 11:41:41 AM - 11:51:41 AM dB
L1 = 60.7 dB
L5 = 58.2 dB
L10 = 56.7 dB
L50 = 52.2 dB
L90 = 48.8 dB
L95 = 47.9 dB
L99 = 46.6 dB
Level Cumulative
Cursor: 07/31/2025 11:46:40 AM - 11:46:41 AM LAIeq=62.6 dB LAFmax=63.2 dB LCpeak=81.1 dB LAFmin=60.6 dB EDISON_004
11:42:00 AM 11:44:00 AM 11:46:00 AM 11:48:00 AM 11:50:00 AM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_004
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 62.6 63.2 60.6
Time 11:46:40 AM 0:00:01
Date 07/31/2025
Cursor: (A) Leq=62.2 dB
EDISON_004

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 11:46:40 AM - 11:46:41 AM
Hz
LZeq
Cursor: 07/31/2025 11:41:41 AM - 12:41:41 PM LAIeq=54.9 dB LAFmax=63.3 dB LCpeak=87.3 dB LAFmin=45.1 dB EDISON_004 Periodic reports
11:50:00 AM 12:00:00 PM 12:10:00 PM 12:20:00 PM 12:30:00 PM 12:40:00 PM 20 40
60 80
100
120
140
dB
LAIeq LAFmax LCpeak LAFmin
EDISON_004 Periodic reports
Start Elapsed Overload LAIeq LAFmax LAFmin
time time [%] [dB] [dB] [dB]
Value 0.00 54.9 63.3 45.1
Time 11:41:41 AM 0:10:00
Date 07/31/2025
Cursor: (A) Leq=53.7 dB LFmax=63.3 dB LFmin=45.1 dB
EDISON_004 Periodic reports

12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C 0 20
40 60
80 100
120
140
dB 07/31/2025 11:41:41 AM - 11:51:41 AM
Hz
LZeq LZFmax LZFmin
Cursor: [78.2 ; 78.4[ dB Level: 0.0% Cumulative: 0.0%
EDISON_004 Periodic reports
20 30 40 50 60 70 80 90 100 110 120 130 140
0 10
20 30
40 50
60 70
80 90
100
% Based on LAF , 10ms Class width: 0.2 dB 07/31/2025 11:41:41 AM - 11:51:41 AM dB
L1 = 60.7 dB
L5 = 58.2 dB
L10 = 56.7 dB
L50 = 52.2 dB
L90 = 48.8 dB
L95 = 47.9 dB
L99 = 46.6 dB
Level Cumulative
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 09/02/2025
Case Description: Demolition
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Residential Residential 1.0 1.0 1.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Concrete Saw No 20 89.6 685.0 0.0
Excavator No 40 80.7 685.0 0.0
Excavator No 40 80.7 685.0 0.0
Excavator No 40 80.7 685.0 0.0
Dozer No 40 81.7 685.0 0.0
Dozer No 40 81.7 685.0 0.0

Results
-------
Noise Limits (dBA) Noise Limit Exceedance (dBA)
---------------------------------------------- ---------------------------------------------- Calculated (dBA) Day Evening Night Day Evening Night
---------------- -------------- ------------- -------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Concrete Saw 66.8 59.9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Excavator 58.0 54.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Excavator 58.0 54.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Excavator 58.0 54.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Dozer 58.9 55.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Dozer 58.9 55.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Total 66.8 63.7 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 09/02/2025
Case Description: Grading
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Residential Residential 1.0 1.0 1.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Excavator No 40 80.7 685.0 0.0
Excavator No 40 80.7 685.0 0.0
Grader No 40 85.0 685.0 0.0
Dozer No 40 81.7 685.0 0.0
Scraper No 40 83.6 685.0 0.0
Scraper No 40 83.6 685.0 0.0
Tractor No 40 84.0 685.0 0.0
Tractor No 40 84.0 685.0 0.0

Results
-------
Noise Limits (dBA) Noise Limit Exceedance (dBA)
---------------------------------------------- ---------------------------------------------- Calculated (dBA) Day Evening Night Day Evening Night
---------------- -------------- ------------- -------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Excavator 58.0 54.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Excavator 58.0 54.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Grader 62.3 58.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Dozer 58.9 55.0 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Scraper 60.8 56.9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Scraper 60.8 56.9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Tractor 61.3 57.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Tractor 61.3 57.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Total 62.3 65.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 09/02/2025
Case Description: Grading
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Residential Residential 1.0 1.0 1.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Crane No 16 80.6 685.0 0.0
Pickup Truck No 40 75.0 685.0 0.0
Pickup Truck No 40 75.0 685.0 0.0
Pickup Truck No 40 75.0 685.0 0.0
Generator No 50 80.6 685.0 0.0
Tractor No 40 84.0 685.0 0.0
Tractor No 40 84.0 685.0 0.0
Tractor No 40 84.0 685.0 0.0
Welder / Torch No 40 74.0 685.0 0.0

Results
-------
Noise Limits (dBA) Noise Limit Exceedance (dBA)
---------------------------------------------- ---------------------------------------------- Calculated (dBA) Day Evening Night Day Evening Night
---------------- -------------- ------------- -------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Crane 57.8 49.9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Pickup Truck 52.3 48.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Pickup Truck 52.3 48.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Pickup Truck 52.3 48.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Generator 57.9 54.9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Tractor 61.3 57.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Tractor 61.3 57.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Tractor 61.3 57.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Welder / Torch 51.3 47.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Total 61.3 63.6 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 09/02/2025
Case Description: Paving
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Residential Residential 1.0 1.0 1.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Paver No 50 77.2 685.0 0.0
Paver No 50 77.2 685.0 0.0
Paver No 50 77.2 685.0 0.0
Paver No 50 77.2 685.0 0.0
Roller No 20 80.0 685.0 0.0
Roller No 20 80.0 685.0 0.0

Results
-------
Noise Limits (dBA) Noise Limit Exceedance (dBA)
---------------------------------------------- ---------------------------------------------- Calculated (dBA) Day Evening Night Day Evening Night
---------------- -------------- ------------- -------------- -------------- -------------- -------------- Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq
---------------------- ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Paver 54.5 51.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Paver 54.5 51.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Paver 54.5 51.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Paver 54.5 51.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Roller 57.3 50.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Roller 57.3 50.3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Total 57.3 58.9 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Roadway Construction Noise Model (RCNM),Version 1.1
Report date: 09/02/2025
Case Description: Coating
**** Receptor #1 ****
Baselines (dBA)
Description Land Use Daytime Evening Night
----------- -------- ------- ------- -----
Residential Residential 1.0 1.0 1.0
Equipment
---------
Spec Actual Receptor Estimated
Impact Usage Lmax Lmax Distance Shielding
Description Device (%) (dBA) (dBA) (feet) (dBA)
----------- ------ ----- ----- ----- -------- --------- Compressor (air) No 40 77.7 685.0 0.0

NOISE IMPACT STUDY

EDISON PARK PICKLEBALL COURTS
City of Huntington Beach, CA
rk19062.1.doc
JN:3092-2023-01

EDISON PARK PICKLEBALL COURTS

NOISE IMPACT STUDY
City of Huntington Beach, California
Prepared for:

Mr. Zachary Mueting

RJM DESIGN GROUP
31591 Camino Capistrano
San Juan Capistrano, CA 92675
Prepared by:

RK ENGINEERING GROUP, INC.
1401 Dove Street, Suite 540
Newport Beach, CA 92660
Bryan Estrada, AICP
Becca Morrison
December 15, 2023
Table of Contents
Section Page

1.0 Introduction ........................................................................................... 1-1

1.1 Purpose of Analysis and Study Objectives 1-1

1.2 Site Location 1-1

1.3 Summary of Analysis Results 1-2

2.0 Fundamentals of Noise and Vibration .................................................. 2-1

2.1 Sound, Noise, and Acoustics 2-1

2.2 Frequency and Hertz 2-1

2.3 Sound Pressure Levels and Decibels 2-1

2.4 Addition of Decibels 2-1

2.5 Human Responses to Changes in Noise Levels 2-2

2.6 Noise Descriptors 2-2

2.7 Sound Propagation 2-4

3.0 Regulatory Setting ................................................................................. 3-1

3.1 City of Huntington Beach Municipal Code Noise Regulations 3-1

4.0 Study Method and Procedures .............................................................. 4-1

4.1 Noise Measurement Procedures and Criteria 4-1

4.2 Stationary Noise Modeling 4-2

4.2.1 Referenced Noise Levels 4-2

5.0 Existing Noise Environment................................................................... 5-1

5.1 24-Hour Noise Measurement Results 5-1

5.2 Existing Noise Environment 5-6

6.0 Operational Noise Impacts .................................................................... 6-1

6.1 Pickleball Courts Noise Impacts 6-1

List of Attachments
Exhibits
Location Map ........................................................................................................... A Site Plan ................................................................................................................... B Ambient Noise Monitoring Locations ........................................................................ C Operational Daytime Noise Levels (dBA) – Leq .......................................................... D Daytime Noise Contours – Leq ................................................................................. E Operational Daytime Noise Levels (dBA) – Lmax ........................................................ F Daytime Noise Contours – Lmax ............................................................................... G Tables
City of Huntington Beach Exterior Noise Standards .................................................... 1 Bonita Canyon Pickleball Courts Referenced Noise Levels ........................................... 2 24-Hour Noise Measurement Results, (L-1) ................................................................ 3 24-Hour Noise Measurement Results, (L-2) ................................................................ 4 Daytime Noise Impact Analysis – Leq (dBA) ............................................................... 5 Daytime Noise Impact Analysis – Lmax (dBA) ............................................................. 6 Appendices
City of Huntington Beach Municipal Code Noise Ordinance ...................................... A Ambient Noise Measurement Field Data and Photos .................................................. B Lake Forest Pickleball Courts Referenced Noise Levels Field Data and Photos ............... C Noise Analysis Results (SoundPLAN Results Sheets) .................................................... D 1-1

1.0 Introduction

1.1 Purpose of Analysis and Study Objectives
The purpose of this study is to evaluate the noise impacts from the proposed Pickleball Courts at Edison Park (hereinafter referred to as “project”), and provide recommendations, if necessary, to minimize any potential project noise impacts.

The following information is provided in this report:
• A description of the study area and the proposed project • Information regarding the fundamentals of noise
• Identification of the applicable City of Huntington Beach noise standards • Analysis of the existing noise environment
• Analysis of the project’s operational noise impact to adjacent residential receptors • Summary of recommendations to reduce noise level impacts.

1.2 Site Location and Project Description
The project site is located within Edison Park, near the northwest corner of Magnolia Street and Hamilton Avenue, in the City of Huntington Beach. The proposed project consists of converting the existing tennis courts into pickleball courts and installing new dual courts that will be striped for both tennis and pickleball. A total of 16 pickleball courts are included as part of the project.

The proposed pickleball and dual tennis/pickleball courts will be located near two tennisonly courts also being installed within Edison Park. It is possible that pickleball activity will occasionally occur at the tennis-only courts. Therefore, this study analyzes potential pickleball noise at the pickleball, tennis, and dual pickleball/tennis courts simultaneously for a conservative, worst-case assessment of impacts.

There are several noise sensitive receptors surrounding the project site, including:

Northern Receptors Existing residential homes located approximately 244 feet north of the tennis-only courts, approximately 25 feet north of the centerline of Stilwell Drive.
1-2
Western Receptors Existing residential homes located approximately 600 feet west of the proposed pickleball courts, just west of Edison Park’s western property line.

Eastern Receptor Existing Edison High School located approximately 360 feet east of the proposed dual tennis/pickleball courts, approximately 50 feet east of the centerline of Magnolia Street.

A project site location map, including sensitive receptor locations, is provided in Exhibit A.

The site plan used for this analysis, provided by RJM DESIGN GROUP, is illustrated on Exhibit B.

1.3 Summary of Analysis Results
• The City of Huntington Beach Municipal Code, Section 8.40.050, establishes 55 dBA Leq and 75 dBA Lmax daytime (7:00 a.m. to 10:00 p.m.) exterior noise standards for residential properties and schools.
• Per the City’s Municipal Code, Section 8.40.050, noise which consists entirely of impact noise, simple tone noise, speech, music, or any combination thereof (which pickleball noise could be categorized as), the noise standards shall be reduced by five (5) db(A). As a result, the daytime residential noise standards would be reduced to 50 dBA Leq and 70 dBA Lmax.
• The proposed project is not expected to exceed the 55 dBA Leq standard or the reduced impact noise standard of 50 dBA Leq at the nearest adjacent residential properties.
• The proposed project is not expected to exceed the 75 dBA Lmax standard or the reduced impact noise standard of 70 dBA Lmax at the nearest adjacent residential properties.
• Due to the project’s expected future noise levels falling below the City’s noise level thresholds, no further design improvements or mitigation measures are being recommended.
• To ensure pickleball noise levels do not adversely impact the adjacent community, pickleball court hours of operation should be limited from 7:00 a.m. to 10:00 p.m.
2-1

2.0 Fundamentals of Noise
This section of the report provides basic information about noise and vibration and presents some of the terms used in the report.

2.1 Sound, Noise, and Acoustics
The sound is a disturbance created by a moving or vibrating source and is capable of being detected by the hearing organs. The sound may be thought of as mechanical energy of a moving object transmitted by pressure waves through a medium to a human ear. For traffic or stationary noise, the medium of concern is air. Noise is defined as sound that is loud, unpleasant, unexpected, or unwanted.

2.2 Frequency and Hertz
A continuous sound is described by its frequency (pitch) and its amplitude (loudness).

Frequency relates to the number of pressure oscillations per second. Low-frequency sounds are low in pitch (bass sounding) and high-frequency sounds are high in pitch (squeak).

These oscillations per second (cycles) are commonly referred to as Hertz (Hz). The human ear can hear from the bass pitch starting out at 20 Hz all the way to the high pitch of 20,000 Hz.

2.3 Sound Pressure Levels and Decibels
The amplitude of a sound determines its loudness. The loudness of sound increases or decreases, as the amplitude increases or decreases. Sound pressure amplitude is measured in units of micro-Newton per square inch meter (N/m2), also called micro-Pascal (μPa).

One μPa is approximately one hundred billionths (0.00000000001) of normal atmospheric pressure. Sound pressure level (SPL or Lp) is used to describe in logarithmic units the ratio of actual sound pressures to a reference pressure squared. These units are called decibels and abbreviated as dB.

2.4 Addition of Decibels
Because decibels are on a logarithmic scale, sound pressure levels cannot be added or subtracted by simple plus or minus addition. When two (2) sounds of equal SPL are combined, they will produce an SPL 3 dB greater than the original single SPL.

In other words, sound energy must be doubled to produce a 3dB increase. 2-2
If two (2) sounds differ by approximately 10 dB the higher sound level is the predominant sound.

2.5 Human Response to Changes in Noise Levels1
In general, the healthy human ear is most sensitive to sounds between 1,000 Hz and 5,000 Hz, (A-weighted scale) and it perceives a sound within that range as being more intense than a sound with a higher or lower frequency with the same magnitude. For purposes of this report as well as with most environmental documents, the A-scale weighing is typically reported in terms of A-weighted decibel (dBA). Typically, the human ear can barely perceive the change in the noise level of 3 dB. A change in 5 dB is readily perceptible, and a change in 10 dB is perceived as being twice or half as loud. As previously discussed, a doubling of sound energy results in a 3 dB increase in sound, which means that a doubling of sound energy (e.g. doubling the volume of traffic on a highway), would result in a barely perceptible change in sound level.

2.6 Noise Descriptors
Noise in our daily environment fluctuates over time. Some noise levels occur in regular patterns, others are random. Some noise levels are constant, while others are sporadic. Noise descriptors were created to describe the different time-varying noise levels.

Following are the most commonly used noise descriptors along with brief definitions.

A-Weighted Sound Level
The sound pressure level in decibels as measured on a sound level meter using the A-weighted filter network. The A-weighting filter de-emphasizes the very low and very high-frequency components of the sound in a manner similar to the response of the human ear. A numerical method of rating human judgment of loudness.

Ambient Noise Level
The composite of noise from all sources, near and far. In this context, the ambient noise level constitutes the normal or existing level of environmental noise at a given location. 1 Technical Noise Supplement to the Traffic Noise Analysis Protocol, September 2013. 2-3
Community Noise Equivalent Level (CNEL)
The average equivalent A-weighted sound level during a 24-hour day, obtained after addition of five (5) decibels to sound levels in the evening from 7:00 to 10:00 PM and after addition of ten (10) decibels to sound levels in the night before 7:00 AM and after 10:00 PM.

Decibel (dB)
A unit for measuring the amplitude of a sound, equal to 20 times the logarithm to the base 10 of the ratio of the pressure of the sound measured to the reference pressure, which is 20 micro-pascals.
dB(A)
A-weighted sound level (see definition above).

Equivalent Sound Level (LEQ)

The sound level corresponding to a steady noise level over a given sample period with the same amount of acoustic energy as the actual time-varying noise level. The energy average noise level during the sample period.

Habitable Room

Any room meeting the requirements of the Uniform Building Code or other applicable regulations which is intended to be used for sleeping, living, cooking or dining purposes, excluding such enclosed spaces as closets, pantries, bath or toilet rooms, service rooms, connecting corridors, laundries, unfinished attics, foyers, storage spaces, cellars, utility rooms, and similar spaces.

L(n)
The A-weighted sound level exceeded during a certain percentage of the sample time. For example, L10 in the sound level exceeded 10 percent of the sample time. Similarly, L50, L90, and L99, etc.
2-4
Noise
Any unwanted sound or sound which is undesirable because it interferes with speech and hearing, or is intense enough to damage hearing, or is otherwise annoying. The State Noise Control Act defines noise as “...excessive undesirable sound...”.

Percent Noise Levels

See L(n).

Sound Level (Noise Level)
The weighted sound pressure level obtained by use of a sound level meter having a standard frequency-filter for attenuating part of the sound spectrum.

Sound Level Meter
An instrument, including a microphone, an amplifier, an output meter, and frequency weighting networks for the measurement and determination of noise and sound levels.

Single Event Noise Exposure Level (SENEL)
The dBA level which, if it lasted for one (1) second, would produce the same A-weighted sound energy as the actual event.

2.7 Sound Propagation
As sound propagates from a source it spreads geometrically. The sound from a small, localized source (i.e., a point source) radiates uniformly outward as it travels away from the source in a spherical pattern. The sound level attenuates at a rate of 6 dB per doubling of distance. The movement of vehicles down a roadway makes the source of the sound appear to propagate from a line (i.e., line source) rather than a point source. This line source results in the noise propagating from a roadway in a cylindrical spreading versus a spherical spreading that results from a point source. The sound level attenuates for a line source at a rate of 3 dB per doubling of distance.

As noise propagates from the source, it is affected by the ground and atmosphere. Noise models use the hard site (reflective surfaces) and soft site (absorptive surfaces) to help calculate predicted noise levels. Hard site conditions assume no excessive ground 2-5
absorption between the noise source and the receiver. Soft site conditions such as grass, soft dirt or landscaping attenuate noise at an additional rate of 1.5 dB per doubling of distance. When added to the geometric spreading, the excess ground attenuation results in an overall noise attenuation of 4.5 dB per doubling of distance for a line source and 6.0 dB per doubling of distance for a point source.

Research has demonstrated that atmospheric conditions can have a significant effect on noise levels when noise receivers are located 200 feet and greater from a noise source.

Wind, temperature, air humidity, and turbulence can further impact how far sound can travel.

Figure 1 shows typical sound levels from indoor and outdoor noise sources. 2-6
Figure 12
2 Technical Noise Supplement to the Traffic Noise Analysis Protocol, September 2013. 3-1

3.0 Regulatory Setting
The proposed project is located in the City of Huntington Beach and the project must adhere to the applicable noise regulations established within the Huntington Beach Municipal Code.

3.1 City of Huntington Beach Municipal Code Noise Regulations The City outlines their noise regulations and standards within the Huntington Beach Municipal Code, Chapter 8.40, Noise Control. The noise standards from the Municipal Code are provided in Appendix A.

Table 1 shows the City of Huntington Beach’s daytime exterior noise standards for the land uses adjacent to the project site, as prescribed in Section 8.40.050 of the Municipal Code.

It is assumed that the project will not operate during nighttime hours (10:00 p.m. to 7:00 a.m.). Therefore, potential noise impacts resulting from the project are compared to the City’s daytime noise standards only.

Table 1
City of Huntington Beach Exterior Noise Standards
Noise Zone Time Period1
Noise
Standard
(Leq)
Noise Standard
(Lmax)
Low-Density Residential 7:00 a.m. to 10:00 p.m.
55 dBA 75 dBA
Schools Hours of Operation
1 The project will not be open during nighttime hours (10:00 p.m. to 7:00 a.m.), therefore only the daytime noise standards are reported and analyzed in this report.

Municipal Code Section 8.40.050, Exterior Noise Standards, also includes a provision that states the following:
“In the event the alleged offensive noise consists entirely of impact noise, simple tone noise, speech, music, or any combination thereof, each of the above noise levels shall be reduced by five (5) dB(A).”
Since pickleball activity does include impact noises (as well as speech and potentially music), the City should consider designing the project to meet these more stringent requirements. As a result, the daytime residential noise standards would be reduced to 50 dBA Leq and 70 dBA Lmax.
4-1

4.0 Study Method and Procedures
The following section describes the noise measurement procedures, measurement locations, and noise modeling procedures and assumptions used in the noise analysis.

4.1 Noise Measurement Procedures and Criteria
A noise receiver or receptor is any location in the noise analysis in which noise might produce an impact. The following criteria are used to select measurement locations and receptors:
• Locations expected to receive the highest noise impacts, such as the first row of houses
• Locations that are acoustically representative and equivalent of the area of concern • Human land usage
• Sites clear of major obstruction and contamination
RK conducted the sound level measurements in accordance with Caltrans technical noise specifications. All measurement equipment meets American National Standards Institute (ANSI) specifications for sound level meters (ANSI S1.4: Specification for Sound Level Meter, 1983)
Piccolo-II Type 2 integrating-averaging level meters were used to conduct long-term (24- hour) noise measurements at the project site and nearest residential properties.

The Leq, Lmin, Lmax, L2, L8, L25, and L50 statistical data were recorded over the measurement time period intervals and the information was utilized to define the noise characteristics for the project. The following gives a brief description of the Caltrans Technical Noise Supplement procedures for sound level measurements:
• Microphones for sound level meters were placed one and half feet above ground level for short-term and ten (10) feet above the ground for long-term noise measurements
• Sound level meters were calibrated before and after each measurement • Following the calibration of equipment, a windscreen was placed over the microphone
• Frequency weighting was set on “A” and slow response
• Temperature and sky conditions were observed and documented 4-2
Appendix B includes photos, field sheets, and measured noise data.

4.2 Stationary Noise Modeling
On-site stationary noise sources were analyzed using SoundPLAN™ noise modeling software. SoundPLAN™ is a standards-based program that incorporates more than twenty national and international noise modeling guidelines. This project consists of stationary noise sources.

Projected noise levels from SoundPLAN™ are based on the following key parameters:
• Developing three-dimensional noise models of the project, • Predicting the project noise levels at the selected community locations and • Comparing the predicted noise with the existing community ambient noise levels at the receptor locations.

The sides of the buildings, walls, etc. were modeled as reflective surfaces and also as diffractive bodies. Most of the ground within the project site and adjacent areas are covered with field grass and vegetation and are modeled as a soft site (Ground Factor=1).

The Effective Flow Resistivity for field grass is the SoundPLAN default. The elevation profile for the project site is derived from Google Earth, and receptors are placed at five feet above ground level.

Sound Power and Sound Pressure Level
Sound power level is the acoustic energy emitted by a source which produces a sound pressure level at some distance. While the sound power level of a source is fixed, the sound pressure level depends upon the distance from the source and the acoustic characteristics of the area in which it is located.

SoundPLAN requires that the source noise level be input using sound power level which must be back calculated based on a measured sound pressure level. The sound power level is calculated using SoundPLAN software by calibrating the source noise level to equal the sound pressure level at an equal distance from the source in which the referenced measurement was taken.

4.2.1 Reference Noise Levels

The noise sources associated with the project can be broken down into two categories:
4-3
• ‘Impact noise’, a short impulsive noise from the impact of the ball against the paddle and/or ground during active play.
• ‘Other noise’, includes speech, yelling and other noise created by patrons of the proposed project.

To evaluate the anticipated noise levels generated by the project, RK obtained reference noise level data from the existing Bonita Canyon Pickleball Courts in the City of Newport Beach. The referenced noise levels were measured on April 10, 2023.

The site used for existing reference noise level measurements consists of four pickleball courts enclosed by fencing retrofitted with noise-reducing lining. To be conservative, this study analyzes potential noise impacts using referenced noise measurements taken inside of the retrofitted fencing for an unmitigated, worst-case scenario.

Table 2 indicates the referenced noise levels for on-site stationary noise sources. Referenced noise level field sheets and calculations are provided in Appendix C.

Table 2
Bonita Canyon Pickleball Courts Referenced Noise Levels Source
Noise Levels (dBA)
Leq Lmax
Bonita Canyon Pickleball Courts 71.41 85.71
1 Worst-case measured noise level. See Appendix C for field sheets.

The referenced noise levels shown in Table 2 are indicative of the noise levels generated by the proposed pickleball courts at the noise source location. To estimate noise level impacts at the surrounding residential receptor locations, the above referenced noise levels are input into the SoundPLAN model as area sources and projected from the source to the receptor locations.

The model projections take into account the noise attenuation effects from distance, local topography, ground effects, and physical barriers to arrive at the predicted noise levels at the receptor locations described in Section 6.0.

It should be noted that the proposed project consists of 16 pickleball courts, however the referenced noise levels used in this study were measured at a location where only four courts were active. Therefore, to account for the sound generated by all 16 proposed courts, the model employs one area source with the referenced noise levels per set or four courts (i.e.,

71.4 dBA Leq per four courts and 85.7 dBA Lmax per four courts). 4-4
Furthermore, the proposed pickleball and dual tennis/pickleball courts will be located near two tennis-only courts that are also being installed within Edison Park. It is possible that pickleball activity will occasionally occur at the tennis-only courts. Therefore, this study assesses potential pickleball noise at the pickleball, tennis, and dual pickleball/tennis courts simultaneously for a conservative, worst-case assessment of impacts. 5-1

5.0 Existing Noise Environment
The existing noise environment for the project site and surrounding areas has been established based on noise measurement data collected by RK.

5.1 24-Hour Noise Measurement Results
In order to establish the ambient noise environment at the nearest residential uses, RK conducted two (2) 24-hour noise level measurements.

Noise levels were measured on May 17, 2023 using Piccolo-II Type 2 integrating-averaging sound level meters. The information was utilized to establish the noise characteristics of the existing ambient environment.

The noise monitoring locations were selected based on the proximity and location to adjacent sensitive receptors. Exhibit C graphically illustrates the location of the long-term measurements.
• Noise Monitoring Location 1 (L-1) was taken within Edison Park, approximately 60 feet south of the centerline of Stilwell Drive and approximately 475 feet west of the centerline of Magnolia Street.
• Noise Monitoring Location 2 (L-2) was taken within Edison Park, approximately 350 feet north of the centerline of Hamilton Avenue and approximately 1,260 feet west of the centerline of Magnolia Street.
24-hour noise monitoring locations represent the existing ambient noise levels near the adjacent noise sensitive land uses near the project site. Ambient noise is consistent with a typical passive park setting, and includes rustling leaves, chirping birds, traffic noise propagating from nearby roadways, as well as perceptible noise from activity at the park’s other features (playground, tennis courts, etc.) and noise from the residential properties.

Appendix B includes photographs, field sheets, and measured ambient noise data. 24-hour noise measurements are summarized in Tables 3 and 4 below. 5-2
Table 3
24-Hour Noise Measurement Results, (L-1)1

Time Leq (dBA) Time Leq (dBA)
12:00 AM 43.9 12:00 PM 54.4
1:00 AM 42.3 1:00 PM 53.0
2:00 AM 41.6 2:00 PM 53.6
3:00 AM 38.3 3:00 PM 55.1
4:00 AM 40.7 4:00 PM 54.9
5:00 AM 45.7 5:00 PM 54.6
6:00 AM 48.8 6:00 PM 54.0
7:00 AM 51.0 7:00 PM 53.5
8:00 AM 51.6 8:00 PM 51.8
9:00 AM 55.2 9:00 PM 48.4
10:00 AM 49.4 10:00 PM 56.6
11:00 AM 51.6 11:00 PM 44.9
24-Hour CNEL 56.6 1 L-1 was recorded on 05/17/2023.

Table 4
24-Hour Noise Measurement Results, (L-2)1

Time Leq (dBA) Time Leq (dBA)
12:00 AM 51.2 12:00 PM 53.6
1:00 AM 45.5 1:00 PM 53.6
2:00 AM 45.4 2:00 PM 55.1
3:00 AM 40.7 3:00 PM 56.5
4:00 AM 43.7 4:00 PM 56.7
5:00 AM 47.6 5:00 PM 57.2
6:00 AM 50.5 6:00 PM 58.7
7:00 AM 53.8 7:00 PM 56.7
8:00 AM 52.6 8:00 PM 58.1
9:00 AM 52.4 9:00 PM 50.9
10:00 AM 52.2 10:00 PM 50.1
11:00 AM 56.3 11:00 PM 51.6
24-Hour CNEL 57.8 1 L-2 was recorded on 05/17/2023.

As shown in the tables above, existing daytime ambient noise levels occasionally exceed the City’s 55 dBA Leq noise level standard for residential land uses and schools. 6-1

6.0 Operational Noise Impacts
This assessment analyzes the anticipated noise levels generated by the project. The main sources of noise generated by the project would include on-site operational activities. Noise level impacts are compared to the City of Huntington Beach Leq and Lmax noise standards.

The project must demonstrate that noise levels generated by the project site would not be in excess of standards established in the Huntington Beach, California Municipal Code. The Municipal Code has a provision that penalizes “impact” noises (such as those generated by pickleball activity). For informational purposes, this report compares noise impacts to both the base noise standards and the impact noise standards.

Appendix D includes SoundPLAN results sheets.

6.1 Pickleball Courts Noise Impacts
The noise generated by pickleball can vary depending on several factors such as the number of players and the type of ball and paddles used. Typically, the sound of a pickleball hitting a paddle is a sharp, distinct sound and is often described as a "pop" or a "whack," and it can be particularly loud if a player hits the ball with a lot of force.

In addition to the sound of the ball hitting the paddle, there may also be additional noise generated by the movement of players on the court. This can include the sound of shoes scuffing on the court surface or the sound of players calling out to each other during the game.

On-site stationary noise impacts from the pickleball courts are assessed at the property lines of the nearest northern, western, and eastern receptors. It is assumed that the project will not operate during nighttime hours (10:00 p.m. to 7:00 a.m.). Therefore, potential noise impacts resulting from the project are compared to the City’s daytime noise standards only.

Table 5 below shows the results of the daytime Leq noise impact analysis. The SoundPLAN analysis results and receiver locations are graphically illustrated in Exhibits D and E.

The project is not expected to exceed the City of Huntington Beach daytime exterior noise standard of 55 dBA Leq or the 50 dBA Leq standard for impact noise.

It should be noted that although the noise generated by the pickleball courts is not expected to exceed the City’s noise ordinance, this does not mean that it will not be 6-2
audible from the exterior areas of the surrounding residential properties and the sound may still be perceived as an annoyance.

Table 5
Daytime Noise Impact Analysis – Leq (dBA)
Receptor Receiver
Daytime Exterior Noise Level (dBA)
Project Noise
Contribution
(Leq)
Huntington
Beach
Noise Level
Criteria1
(Leq)
Noise Level
Exceeds Standard
(?)
Northern Receptors
1 43.6

55.0 / 50.0
No / No
2 45.6 No / No
3 46.9 No / No
Western Receptors
4 38.5 No / No
5 42.4 No / No
6 38.0 No / No
Eastern Receptor 7 43.9 No / No
1 Huntington Beach daytime residential/schools noise standard / Huntington Beach daytime residential/schools “impact” noise standard.

Table 6 shows the results of the daytime Lmax noise impact analysis. The SoundPLAN analysis results and receiver locations are graphically illustrated in Exhibits F and G.

The project is not expected to exceed the City of Huntington Beach daytime exterior noise standard of 75 dBA Lmax or the 70 dBA Lmax standard for impact noise. 6-3
Table 6
Daytime Noise Impact Analysis – Lmax (dBA)
Receptor Receiver
Daytime Exterior Noise Level (dBA)
Project Noise
Contribution
(Leq)
Huntington
Beach
Noise Level
Criteria1
(Leq)
Noise Level
Exceeds Standard
(?)
Northern Receptors
1 57.9

75.0 / 70.0
No / No
2 59.9 No / No
3 61.2 No / No
Western Receptors
4 52.8 No / No
5 56.7 No / No
6 52.3 No / No
Eastern Receptor 7 58.2 No / No
1 Huntington Beach daytime residential/schools noise standard / Huntington Beach daytime residential/schools “impact” noise standard.

As shown in the tables above, the project is expected to generate maximum noise levels of

46.9 dBA Leq and 61.2 dBA Lmax at the nearest adjacent residential properties. This falls below the City’s exterior noise standards of 55 dBA Leq and 75 dBA Lmax, and below the reduced impact noise standards of 50 dBA Leq and 70 dBA Lmax. Therefore, based on its current design, the project does not require any further design improvements or mitigation measures to meet the City of Huntington Beach Municipal Code requirements.

To ensure pickleball noise levels do not adversely impact the adjacent community, pickleball court hours of operation should be limited to 7:00 a.m. to 10:00 p.m. only.

Exhibits
Western Receptors engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Location Map Exhibit A Legend: = Proposed Court Boundaries N Northern Receptors Eastern Receptor ~244' ~600' ~360'
engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Site Plan Exhibit B N engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Noise Monitoring Locations Exhibit C 1 1 = Noise Monitoring Location N 2 Legend: = Proposed Court Boundaries engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Operational Daytime Noise Levels (dBA) - Leq Exhibit D N engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Daytime Noise Contours - Leq Exhibit E N engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Operational Daytime Noise Levels (dBA) - Lmax Exhibit F N engineering group, inc. EDISON PARK PICKLEBALL COURTS NOISE IMPACT STUDY, City of Huntington Beach, CA 3092-2023-01 Daytime Noise Contours - Lmax Exhibit G N Appendices
Appendix A

City of Huntington Beach, California
Municipal Code Chapter 8.40 – Noise Control

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Appendix B

Ambient Noise Measurement
Field Data and Photos
Project: Engineer: B. Estrada Date: 5/16/23 - 5/18/23
JN: 3092-2023-01
Measurement Address: City: Site No.:

Edison Park Huntington Beach, CA
Sound Level Meter: Calibration Record: Conditions:

Piccolo II Input, dB/ Time Date
Serial # P0221010801 1 94.0 2:25 PM 5/16/23 Temp (F):

Serial # P0222082205 2 90.0 2:35 PM 5/16/23 Windspeed:
3 / / / Direction:
4 / / / Skies:

Calibrator: 5/ / /
BSWA
Serial # 500732
Notes: Measurement Type:
= Noise
Monitoring
Location
Measurements recorded from 12:00 AM on 5/17/23 to 12:00 AM on 5/18/23 Field Sheet
1 Meter Settings:

Edison Park Pickleball Courts
72 Deg. F.
9 m.p.h.

Southwest
Partly Cloudy
A-WTD
C-WTD
LINEAR

IMPULSE
SLOW
FAST
1/1 OCT
1/3 OCT
_60_ MINUTE INTERVALS

L(N) PERCENTILE VALUES
Long-term
Short-term
1 1
2 Project: Engineer: B. Estrada Date: 5/16/23 - 5/18/23 JN: 3092-2023-01
Measurement Address: Edison Park City: Huntington Beach, CA Site No.:

47.0 Field Sheet - Noise Monitoring Location 1 Photo
Edison Park Pickleball Courts
Notes: Measurement was taken approximately 60 ft. south of the centerline of Stilwell Drive and approximately 475 ft. west of the centerline of Magnolia Street
1 Meter 1
Time Leq CNEL
12:00 AM 43.9 56.6
1:00 AM 42.3 56.62:00 AM 41.6 56.63:00 AM 38.3 56.64:00 AM 40.7 56.65:00 AM 45.7 56.66:00 AM 48.8 56.67:00 AM 51.0 56.68:00 AM 51.6 56.69:00 AM 55.2 56.6 10:00 AM 49.4 56.611:00 AM 51.6 56.6
12:00 PM 54.4 56.6
1:00 PM 53.0 56.62:00 PM 53.6 56.63:00 PM 55.1 56.64:00 PM 54.9 56.65:00 PM 54.6 56.66:00 PM 54.0 56.67:00 PM 53.5 56.68:00 PM 51.8 56.69:00 PM 48.4 56.6 10:00 PM 56.6 56.611:00 PM 44.9 56.6
Day Min: 48.4Night Min 38.3

0.0 20.040.060.080.0
100.0
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
Noise Level (dBA)
Location-1, 24-Hour Noise Monitoring Result (CNEL)
Leq CNEL
PROJECT: Edison Park Pickleball Courts JOB #: 3092-2023-01 NOISE METER: Piccolo II SLM, 24-Hour Measurement DATE: 5/16/23 - 5/18/23 BY: B. Estrada
Time Leq Lmax Lmin L2 L8 L25 L50
12:00 AM 43.9 60.3 39.0 48.3 45.7 44.1 43.0
1:00 AM 42.3 54.1 37.3 47.6 44.0 42.5 41.52:00 AM 41.6 54.9 37.7 44.4 43.1 42.1 41.33:00 AM 38.3 55.7 33.0 42.4 40.9 38.9 36.74:00 AM 40.7 63.2 33.0 46.7 43.0 40.0 37.45:00 AM 45.7 69.3 35.4 52.5 47.9 44.1 41.86:00 AM 48.8 71.1 36.4 56.6 52.0 47.1 43.97:00 AM 51.0 72.4 38.9 58.9 54.4 50.0 46.98:00 AM 51.6 78.9 40.8 58.7 54.5 51.0 48.69:00 AM 55.2 73.6 40.0 64.2 60.8 53.6 48.0 10:00 AM 49.4 69.4 40.2 57.3 52.7 48.8 46.711:00 AM 51.6 76.7 41.0 59.0 52.6 49.3 47.2 12:00 PM 54.4 75.7 41.3 63.0 58.1 53.2 49.8
1:00 PM 53.0 79.1 43.8 60.3 55.9 52.2 49.72:00 PM 53.6 77.0 44.5 60.4 57.0 53.5 51.03:00 PM 55.1 76.4 45.9 62.9 58.0 53.6 51.14:00 PM 54.9 71.0 46.6 62.0 58.6 55.0 52.35:00 PM 54.6 71.6 46.4 61.5 58.2 54.5 52.26:00 PM 54.0 71.9 45.9 61.0 57.3 53.8 51.67:00 PM 53.5 78.9 44.1 59.3 55.4 52.1 50.28:00 PM 51.8 77.7 42.6 58.1 53.8 50.8 48.79:00 PM 48.4 65.8 40.1 55.0 50.9 47.8 46.0 10:00 PM 56.6 83.5 39.6 60.9 58.0 51.4 47.411:00 PM 44.9 69.5 37.8 51.2 47.0 44.6 42.8 Daytime 53.5 83.5 38.9 60.7 56.7 52.4 49.7Nighttime 44.4 71.1 33.0 50.9 46.8 43.6 41.6 LOCATION: L-1

0.0 20.040.060.080.0
100.0
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
Decibel (dB)
Time
Location-1, 24 Hour Noise Monitoring Results (Leq, Ln)
Leq Lmax Lmin L2 L8 L25 L50
Project: Engineer: B. Estrada Date: 5/16/23 - 5/18/23
JN: 3092-2023-01
Measurement Address: Edison Park City: Menifee, CA Site No.:

47.0 Field Sheet - Noise Monitoring Location 2 Photo
Edison Park Pickleball Courts
Notes: Measurement was taken approximately 350 ft. north of the centerline of Hamilton Ave. and approximately 1,260 ft. west of the centerline of Magnolia St.
1 Meter 2
Time Leq CNEL
12:00 AM 51.2 57.8
1:00 AM 45.5 57.82:00 AM 45.4 57.83:00 AM 40.7 57.84:00 AM 43.7 57.85:00 AM 47.6 57.86:00 AM 50.5 57.87:00 AM 53.8 57.88:00 AM 52.6 57.89:00 AM 52.4 57.8 10:00 AM 52.2 57.811:00 AM 56.3 57.8
12:00 PM 53.6 57.8
1:00 PM 53.6 57.82:00 PM 55.1 57.83:00 PM 56.5 57.84:00 PM 56.7 57.85:00 PM 57.2 57.86:00 PM 58.7 57.87:00 PM 56.7 57.88:00 PM 58.1 57.89:00 PM 50.9 57.8 10:00 PM 50.1 57.811:00 PM 51.6 57.8
Day Min: 50.9Night Min 40.7

0.0 10.020.030.040.050.060.070.0
12:00 AM
1:00 AM
2:00 AM
3:00 AM
4:00 AM
5:00 AM
6:00 AM
7:00 AM
8:00 AM
9:00 AM
10:00 AM
11:00 AM
12:00 PM
1:00 PM
2:00 PM
3:00 PM
4:00 PM
5:00 PM
6:00 PM
7:00 PM
8:00 PM
9:00 PM
10:00 PM
11:00 PM
Noise Level (dBA)
Location-2, 24-Hour Noise Monitoring Result (CNEL)
Leq CNEL
PROJECT: Edison Park Pickleball Courts JOB #: 3092-2023-01 NOISE METER: Piccolo II SLM, 24-Hour Measurement DATE: 5/16/23 - 5/18/23 BY: B. Estrada
Time Leq Lmax Lmin L2 L8 L25 L50
12:00 AM 51.2 79.9 41.7 53.3 48.8 47.0 45.6
1:00 AM 45.5 56.6 41.4 49.0 47.3 45.9 45.02:00 AM 45.4 63.3 41.3 48.1 46.5 45.5 44.63:00 AM 40.7 51.7 36.4 45.5 43.7 42.1 38.94:00 AM 43.7 56.1 37.4 48.1 46.6 44.6 42.55:00 AM 47.6 70.3 39.3 52.9 50.2 47.9 45.86:00 AM 50.5 67.1 41.0 57.8 52.7 49.8 47.77:00 AM 53.8 74.1 45.1 60.3 56.1 53.6 51.98:00 AM 52.6 64.1 45.4 57.4 55.1 53.3 51.99:00 AM 52.4 69.1 43.6 58.4 54.9 52.4 50.5 10:00 AM 52.2 67.8 44.4 59.1 55.3 52.0 50.211:00 AM 56.3 72.2 44.6 65.8 60.2 55.9 51.0 12:00 PM 53.6 68.1 46.1 60.0 55.9 53.6 52.0
1:00 PM 53.6 69.8 47.5 59.0 56.2 53.9 52.32:00 PM 55.1 70.5 48.8 62.4 58.3 54.6 52.93:00 PM 56.5 76.6 49.6 62.6 58.5 55.4 54.04:00 PM 56.7 81.9 49.8 61.4 58.4 56.1 54.55:00 PM 57.2 74.6 50.5 62.4 58.9 56.7 55.26:00 PM 58.7 86.6 49.9 62.7 58.3 56.0 54.57:00 PM 56.7 83.7 48.3 60.5 56.6 54.8 53.48:00 PM 58.1 87.5 46.0 58.2 55.1 53.2 51.79:00 PM 50.9 69.5 45.3 54.6 53.0 51.3 49.8 10:00 PM 50.1 65.7 44.0 55.3 52.3 50.4 48.611:00 PM 51.6 69.3 43.7 57.7 55.8 51.8 49.1 Daytime 55.4 87.5 43.6 60.9 56.9 54.3 52.5Nighttime 48.4 79.9 36.4 53.6 50.6 47.8 45.7 LOCATION: L-1

Bonita Canyon Courts Referenced Noise Levels
Field Data and Photos
Project: Engineer: B. Morrison Date: 05/10/2023
JN: 3092-2023-02
Measurement Address: City: Site No.:

Bonita Canyon Pickleball Courts Newport Beach, CA
Sound Level Meter: Calibration Record: Conditions:

Piccolo II Input, dB/ Time
Serial # P0222082204 Meter 1 94.0 9:54 AM Temp:

P0222082205 Meter 2 94.0 9:56 AM Windspeed:

P0221010801 Meter 3 / / Direction:

Calibrator: Meter 4 / / Skies:

BSWA Meter 5 / /
Serial # 500732
Notes: Measurement Type:

Start Time Stop Time Leq Lmax Lmin L2 L8 L25 L50
10:25 AM 10:50 AM 70.2 83.8 56.9 76.7 73.8 70.9 68.3
10:02 AM 10:17 AM 70.1 83.6 57.8 76.9 73.5 70.4 68.0
10:25 AM 10:50 AM 69.6 82.6 56.9 76.1 73.3 70.1 67.7
10:02 AM 10:17 AM 69.9 84.5 57.5 77.2 73.3 70.1 67.8
11:11 AM 11:26 AM 71.4 85.7 55.1 79.0 75.0 71.5 68.6
Pickleball Courts Reference Noise
Levels
6 m.p.h.

Southwest
= Noise
Monitoring
Location
63 Deg. F.

Partly Cloudy
Comments: Measurement was taken approximately 14 feet southwest of the center of the northeastern pickleball court and approximately 207 feet east of the centerline of MacArthur Boulevard.

Comments: Measurement was taken approximately 13 feet east of the center of the northeastern pickleball court and approximately 234 feet east of the centerline of MacArthur Boulevard.

The noise measurement site consists of four pickleball courts, located approximately 178 feet from the centerline of Macarthur Boulevard. All four courts were active during each of the 15-minute measurements. Ambient noise during the measurement periods consisted of noise from active pickleball play, people speaking, and minimal roadway noise along MacArthur Boulevard. Interval Comments: Measurement was taken approximately 16 feet east of the center of the southwestern pickleball court and approximately 203 feet east of the centerline of MacArthur Boulevard.

L-1
L-5
L-4
L-3
Field Sheet
1 Comments: Measurement was taken approximately 14 feet northwest of the center of the northeastern pickleball court and approximately 208 feet east of the centerline of MacArthur Boulevard.

Comments: Measurement was taken approximately 13 feet west of the center of the northeastern pickleball court and approximately 208 feet east of the centerline of MacArthur Boulevard.

Meter Settings:

L-2
A-WTD
C-WTD
LINEAR

IMPULSE
SLOW
FAST
1/1 OCT
1/3 OCT
_____ MINUTE INTERVALS

L(N) PERCENTILE VALUES
Long-term
Short-term
1 L-1
L-3
L-2 L-4
L-5
Project: Engineer: B. Morrison Date: 05/10/2023
JN: 3092-2023-02
Measurement Address: City: Meter No.:

Bonita Canyon Pickleball Courts Newport Beach, CA

47.0 Field Sheet - Photos
Pickleball Courts Reference Noise
Levels
1 Meter 1
Project: Engineer: B. Morrison Date: 05/10/2023
JN: 3092-2023-02
Measurement Address: City: Meter No.:

Bonita Canyon Pickleball Courts Newport Beach, CA

47.0 Field Sheet - Photos
Pickleball Courts Reference Noise
Levels
2 Meter 2
Appendix D

Noise Analysis Results
(SoundPLAN Results Sheets)
Leq Scenario
Level
Source name Traffic lane Day Night
dB(A)
1 1.Fl 43.6 0.0
1 - 36.3 -
2 - 36.3 -
3 - 36.0 -
4 - 35.5 -
5 - 38.2 -
2 1.Fl 45.6 0.0
1 - 38.2 -
2 - 38.4 -
3 - 38.2 -
4 - 36.8 -
5 - 40.7 -
3 1.Fl 46.9 0.0
1 - 34.9 -
2 - 36.4 -
3 - 39.5 -
4 - 39.6 -
5 - 43.6 -
4 1.Fl 38.5 0.0
1 - 32.7 -
2 - 32.2 -
3 - 30.7 -
4 - 30.2 -
5 - 31.1 -
5 1.Fl 42.4 0.0
1 - 37.4 -
2 - 36.6 -
3 - 34.1 -
4 - 33.5 -
5 - 33.8 -
6 1.Fl 38.0 0.0
1 - 32.7 -
2 - 32.2 -
3 - 30.1 -
4 - 29.6 -
5 - 29.0 -
7 1.Fl 43.9 0.0
1 - 33.3 -
2 - 34.1 -
3 - 37.7 -
4 - 39.0 -
5 - 37.6 -
Contribution levels of the receivers
RK Engineering Group Inc.

Lmax Scenario
Level
Source name Traffic lane Day Night
dB(A)
1 1.Fl 57.9 0.0
1 - 50.7 -
2 - 50.6 -
3 - 50.3 -
4 - 49.8 -
5 - 52.5 -
2 1.Fl 59.9 0.0
1 - 52.5 -
2 - 52.7 -
3 - 52.5 -
4 - 51.1 -
5 - 55.0 -
3 1.Fl 61.2 0.0
1 - 49.2 -
2 - 50.7 -
3 - 53.8 -
4 - 53.9 -
5 - 57.9 -
4 1.Fl 52.8 0.0
1 - 47.0 -
2 - 46.5 -
3 - 45.0 -
4 - 44.5 -
5 - 45.4 -
5 1.Fl 56.7 0.0
1 - 51.7 -
2 - 50.9 -
3 - 48.4 -
4 - 47.8 -
5 - 48.1 -
6 1.Fl 52.3 0.0
1 - 47.0 -
2 - 46.5 -
3 - 44.4 -
4 - 43.9 -
5 - 43.3 -
7 1.Fl 58.2 0.0
1 - 47.6 -
2 - 48.4 -
3 - 52.0 -
4 - 53.3 -
5 - 51.9 -
Contribution levels of the receivers
RK Engineering Group Inc.

Updated Pickleball Noise Modeling
Michael Baker International, January 2026
Updated Pickleball Noise Modeling
Michael Baker International, December 2025

Building Limit Level Conflict
No. Receiver name side Floor Day Night Day Night Day Night dB(A) dB(A) dB
1 1 - GF - - 45.1 0.0 - -
2 2 - GF - - 45.2 0.0 - -
3 3 - GF - - 44.5 0.0 - -
4 4 - GF - - 41.7 0.0 - -
5 5 - GF - - 43.8 0.0 - -
6 6 - GF - - 42.7 0.0 - -
7 7 - GF - - 45.5 0.0 - -
8 8 - GF - - 44.7 0.0 - -
Receiver list
Michael Baker International 5 Hutton Centre Dr Santa Ana, CA 92707 USA Level
Source name Traffic lane Day Night
dB(A)
1 GF 45.1 0.0
1 - 41.2 -
2 - 41.1 -
3 - 35.1 -
4 - 34.9 -
2 GF 45.2 0.0
1 - 41.0 -
2 - 41.2 -
3 - 35.5 -
4 - 35.4 -
3 GF 44.5 0.0
1 - 40.0 -
2 - 40.5 -
3 - 35.6 -
4 - 35.6 -
4 GF 41.7 0.0
1 - 37.7 -
2 - 37.1 -
3 - 33.0 -
4 - 32.6 -
5 GF 43.8 0.0
1 - 40.0 -
2 - 39.0 -
3 - 35.2 -
4 - 34.7 -
6 GF 42.7 0.0
1 - 37.4 -
2 - 36.8 -
3 - 36.5 -
4 - 35.8 -
7 GF 45.5 0.0
1 - 38.5 -
2 - 39.4 -
3 - 39.6 -
4 - 40.3 -
8 GF 44.7 0.0
1 - 34.5 -
2 - 34.9 -
3 - 40.2 -
4 - 41.1 -
Contribution levels of the receivers
Michael Baker International 5 Hutton Centre Dr Santa Ana, CA 92707 USA

Building Limit Level Conflict
No. Receiver name side Floor Day Night Day Night Day Night dB(A) dB(A) dB
1 1 - GF - - 59.4 0.0 - -
2 2 - GF - - 59.5 0.0 - -
3 3 - GF - - 58.8 0.0 - -
4 4 - GF - - 56.0 0.0 - -
5 5 - GF - - 58.1 0.0 - -
6 6 - GF - - 57.0 0.0 - -
7 7 - GF - - 59.8 0.0 - -
8 8 - GF - - 59.0 0.0 - -
Receiver list
Michael Baker International 5 Hutton Centre Dr Santa Ana, CA 92707 USA Level
Source name Traffic lane Day Night
dB(A)
1 GF 59.4 0.0
1 - 55.5 -
2 - 55.4 -
3 - 49.4 -
4 - 49.2 -
2 GF 59.5 0.0
1 - 55.3 -
2 - 55.5 -
3 - 49.8 -
4 - 49.7 -
3 GF 58.8 0.0
1 - 54.3 -
2 - 54.8 -
3 - 49.9 -
4 - 49.9 -
4 GF 56.0 0.0
1 - 52.0 -
2 - 51.4 -
3 - 47.3 -
4 - 46.9 -
5 GF 58.1 0.0
1 - 54.3 -
2 - 53.3 -
3 - 49.5 -
4 - 49.0 -
6 GF 57.0 0.0
1 - 51.7 -
2 - 51.1 -
3 - 50.8 -
4 - 50.1 -
7 GF 59.8 0.0
1 - 52.8 -
2 - 53.7 -
3 - 53.9 -
4 - 54.6 -
8 GF 59.0 0.0
1 - 48.8 -
2 - 49.2 -
3 - 54.5 -
4 - 55.4 -
Contribution levels of the receivers
Michael Baker International 5 Hutton Centre Dr Santa Ana, CA 92707 USA 5050 Avenida Encinas, Suite 260 | Carlsbad, CA 92008 | Office: 760-476-9193 | Fax: 760-476-9198 | www.mbakerintl.com Technical Memorandum
August 22, 2025
To: Engineering Department, City of Huntington Beach
From: Alejandro Tapia PE, Michael Baker International
Jake Swim TE, Michael Baker International
CC: Alan Ashimine, Michael Baker International
Subject: Edison Park Reconfiguration and Improvements – Vehicle Miles Traveled Assessment
Introduction
The purpose of this memorandum is to document the Vehicle Miles Traveled (VMT) assessment for the proposed Edison Park Reconfiguration and Improvements (project) located in the City of Huntington Beach, California in support of the Transportation component of the California Environmental Quality Act (CEQA) process. Table 1 provides key project information. Attachment A contains all associated exhibits. Exhibit 1 shows the regional location of the project, Exhibit 2 shows the local vicinity map, and Exhibit 3 shows the conceptual site plan.

Table 1- Project Information
Item Description
Project Name Edison Park Reconfiguration and Improvements Project Location Northwest corner of Hamilton Avenue and Magnolia Street in the City of Huntington Beach.

Site Area Edison Park covers approximately 39.69 acres.

Existing Use Public Park
Surrounding Land
Use
Stilwell Drive and residential homes to the north; residential homes to the west; Magnolia Street and Edison High School to the east; Hamilton Avenue and Ascon Landfill Site to the south.

Proposed Project
The project aims enhance the park and its amenities. Roughly 27.5 acres or 63.3% of the park is a former landfill site. The former landfill site is resettling and sinking in various locations. Reconfiguration and improvements efforts aim to create new park amenities off of the former landfill site, and onto non-landfill land. The project does include improving amenities already on and off of the former landfill site. Other amenities that are on the former landfill site will either be left alone or converted into open space.

The various new and upgraded amenities (sports courts, wheel sports, playground, trees, walkways, parking lot, and access) will allow for more park engagement (by offering diversified recreation) as well as opportunities for more open space, by clearing the currently resettling and sinking amenities that are becoming unusable. 2 Project Trip Generation
The project site trips were calculated using trip generation rates obtained from the Institute of Transportation Engineers (ITE) Trip Generation Manual (11th Edition). Since some proposed improvements would replace or relocate existing park facilities, a trip credit may be applied to account for the displacement. However, for the purposes of this analysis, a worst-case development scenario will be analyzed assessing the park as a whole, assuming 39.69 acres of Public Park. Table 2 provides the trip generation rates based on the project’s land use.

Table 3 presents the vehicle trip generation summary forecast to be generated by the project.

As shown, the project is forecast to generate approximately 31 weekday vehicle trips with 1 AM peak hour trips , 4 PM peak hour trips, and 11 Saturday peak hour trips.

Table 2- Trip Generation Rates
Land Use ITE
Code1
Weekday
Trip Rate
AM Peak Hour Rate PM Peak Hour Rate Saturday Peak Hour
Total In / Out Total In / Out Total In / Out
Public Park 411 0.78 / ac 0.02 / ac 59% / 41% 0.11 / ac 55% / 45% 0.28 / ac 55% / 45% 1 Source: ITE Trip Generation Manual, 11th Edition.
ac = Acres
Table 3 – Trip Generation Summary
Land Use Intensity Weekday
Trips
AM Peak Hour Trips PM Peak Hour Trips Saturday Peak Hour Total In / Out Total In / Out Total In / Out
Public Park 39.69 ac 31 1 1 / 0 4 2 / 2 11 6 / 5
Screening Methodology
The City of Huntington Beach adopted VMT thresholds in the Vehicle Miles Traveled Guidelines in October 2023 (City Guidelines). Land use projects that meet one or more of the screening thresholds documented in the City Guidelines can be presumed to result in a less-than-significant transportation impact under CEQA, without conducting a detailed VMT study. For land development projects, these criteria include proximity to transit, location, or project type. Each of the screening criteria and the individual project assessments are discussed below.

3 Table 4 – VMT Screening Criteria Summary
Screening Criteria1
Project
Evaluation Result
Transit
Priority Area
Screening
A Transit Priority Area (TPA) is defined as a ½ mile area around an existing major transit stop or an existing stop along a high-quality transit corridor. Qualified “major transit stop” and “high-quality transit corridor” are defined below:
• Major Transit Stop: a site containing an existing rail transit station, a ferry terminal served by either a bus or rail transit service, or the intersection of two or more major bus routes with a frequency of service interval of 15 minutes or less during the morning and afternoon peak commute periods.
• High-Quality Transit Corridor: a corridor with fixed route bus service with service intervals no longer than 15 minutes during the morning and afternoon peak commute hours.

Please note that projects located within a TPA may be presumed to have a less than significant impact absent substantial evidence to the contrary, and this presumption may not be appropriate if the project meets any one of the following conditions:
• Has a Floor Area Ratio (FAR) of less than 0.75
• Includes more parking for use by residents, customers, or employees of the project than required by the City
• Is inconsistent with the Southern California Association of Governments (SCAG) Sustainable Communities Strategy, as confirmed by the City
• Replaces affordable residential units with a smaller number of moderate- or high-income residential units
Based on the
TPA Screening
Maps provided
in the City
Guidelines, the
project is not
within a TPA.

Criterion
not
satisfied
Low VMT
Area
Screening
A low VMT-generating area is defined as a TAZ where VMT per Capita or VMT per Employee is 15% below the City of Huntington Beach’s average VMT per Capita or VMT per Employee. If a project is located in a low VMT-generating area, then the project may be presumed to have a less than significant impact absent substantial evidence to the contrary.

To qualify for this screening, the project must be within a low VMTgenerating area and be consistent with the SCAG RTP/SCS, as confirmed by the City of Huntington Beach. Additionally, the analyst shall confirm if the project is consistent with the existing land uses within that TAZ and use engineering judgement to verify that there is nothing unique about the project when compared to the existing land uses.

Based on the
Low VMT
Screening Maps
provided in the
City Guidelines,
the project is not
within a Low
VMT area.

Criterion
not
satisfied
4 Screening Criteria1
Project
Evaluation Result
Project Type
Screening
Some project types have been identified as having the presumption of a less-than-significant impact as listed below, absent substantial evidence to the contrary.

Project Generating less than 110 net Daily Vehicle Trips A project that generates less than 110 net daily vehicle trips (less passby, diverted and/or internal capture vehicle trips) is presumed to have a less than significant transportation impact, absent substantial evidence to the contrary. The daily vehicle trips shall be calculated using the latest edition of the Institute of Transportation Engineers (ITE) Trip Generation Manual. The use of other sources of trip generation shall first be approved by the City Engineer.

Affordable Housing
If a project is 100% affordable-housing units, it is presumed to have a less than significant impact, absent substantial evidence to the contrary. Additionally, the following “typical” developments are generally considered in this category:
• Senior Housing (as defined by Department of Housing and Urban Development (HUD))
• Student Housing
• Assisted Living Facilities
Local Serving Retail
If a project is a local-serving retail use of less than 50,000 square-feet (SF), it is presumed to have a less than significant impact, absent substantial evidence to the contrary. If the retail project is greater than 50,000 SF in total, each building size less than 50,000 SF shall be screened out. Local-serving retail generally reduces VMT by shortening trips that will occur. The final determination of whether the development is local serving will be made by the City Engineer on a case-by-case basis. The following “typical” developments are generally considered in this category:
• Gas Stations/EV Charging Stations
• Banks
• Restaurants
• Medical Clinics
• Urgent Care
• Auto Repair/Tire Shop
• Gyms/Health Clubs/Fitness Center
• Mini Warehouse (Self Storage) Facilities
• Local-Serving Hotels/Motels (Non-Resort Hotels)
Educational/Institutional Land Use
If a project is an educational or institutional land use, it is presumed to have a less than significant impact,
absent substantial evidence to the contrary. The following “typical” developments are generally
considered into this category:
• Public Elementary School
• Public Middle School
Based on the
project trip
generation, the
project is
anticipated to
generate 31
weekday daily
trips, less than
110 daily trips.

Additionally, as a
public park
project, it falls
under a ”typical”
development for
municipal/public
service land
uses. Therefore,
the criterion is
met.

Criterion is
satisfied.
5 Screening Criteria1
Project
Evaluation Result
• Public High School
• Community College
• Day Care Center
• Local-Serving K-12 Schools
• Pre-School
• Community and Religious Assembly Uses
Municipal/Public Service Land Use
If a project is a municipal/public service land use, it is presumed to have a less than significant impact, absent substantial evidence to the contrary. The following “typical” developments are generally considered in this category:
• Library
• Civic Center
• Police/Fire Department
• Community Center
• Local/Community Park
• Other Local Serving Civic Uses
Transit and Active Transportation Projects
Transit and active transportation projects generally reduce VMT and therefore are presumed to cause a less-than-significant impact on transportation. This presumption may apply to all passenger rail projects, bus and bus rapid transit projects, and bicycle and pedestrian infrastructure projects.
1Source: City of Huntington Beach’s Vehicle Miles Traveled Guidelines (October 2023) VMT Screening Conclusions
Based on the City Guidelines, projects that meet certain screening thresholds should be expected to result in a less-than-significant transportation impact under CEQA and do not require a detailed quantitative VMT assessment. The project satisfies the screening threshold based on Project Type screening. Therefore, a detailed VMT analysis for the project is not required and the project is presumed to have a less-than-significant impact on transportation. Therefore, no mitigation is required.
k
Attachment A
Exhibits

EDISON PARK RECONFIGURATION AND IMPROVEMENTS PROJECT
CEQA 15183 EXEMPTION CHECKLIST
Exhibit 1
Regional Vicinity NOT TO SCALE
07/2025 • JN 208581

P A C I F I C O C E A N
USMC
Camp Pendleton
101
395
405
405
605
105
210
210
710
110
215
215
5 5
5 15
15 15
15 10
10 10
73 55
57 91 91
90 60
71 83
66 91
60 38
18 18
22 39
1 2
14 18
18 138
138 173
247
74 74
1 1
133
261
241
330
241

SAN BERNARDINO
COUNTY

RIVERSIDE
COUNTY

SAN DIEGO
COUNTY

LOS ANGELES
COUNTY
ORANGE
COUNTY
Victorville
Adelanto
Hesperia
Apple Valley
San
Bernardino
Lake
Arrowhead
Running
Springs
Riverside
Fontana
Ontario Pomona
Rancho
Cucamonga
Chino
Rialto
Corona
Norco
Lake
Elsinore
Hemet
Beaumont
Redlands
Temecula
Fallbrook
Oceanside
Murrieta
Palmdale
Lancaster
San
Fernando
Pasadena
West
Covina
Whittier
Burbank
Glendora
Los
Angeles
Torrance
Long
Beach
Newport
Beach
Huntington
Beach
San
Clemente
Dana
Point
Laguna
Beach San Juan
Capistrano
Santa
Ana
Costa
Mesa
Garden
Grove
Fullerton
Yorba
Linda
Irvine
Moreno
Valley
Sun
City
Perris

PROJECT
SITE
Exhibit 2
Site Vicinity
Source: Google Earth Pro, July 2025

NOT TO SCALE
07/2025 • JN 208581

HAMILTON AVE

STILWELL DR

SABLE DR

ST AUGUSTINE DR

BRETON LN

YARMOUTH LN MIRMAR LN

WHITE HORSE LN

GREENBORO LN

SHEPERD LN

SEAFORTH LN

SAND DOLLAR LN

NEWLAND ST

ANTIGUA LN

MAGNOLIA ST

DORSET DR

REGATTA DR

BOBBIE CIR

POLYNESIAN LN

NIGUEL CIR

KROLL LN

POSTON LN

SHAW LN

PROJECT SITE

EDISON PARK RECONFIGURATION AND IMPROVEMENTS PROJECT
CEQA 15183 EXEMPTION CHECKLIST
Exhibit 3
Conceptual Reconfiguration Plan
Source: RJM Design Group, 2025

NOT TO SCALE
07/2025 • JN 208581

EDISON PARK RECONFIGURATION AND IMPROVEMENTS PROJECT
CEQA 15183 EXEMPTION CHECKLIST
Project Site

OWNED AND OPERATED

BY SCHOOL DISTRICT

OPEN TO THE PUBLIC
(5 ACRES)
Not a Part of the Proposed Project Not a Part of the Proposed Project

City Council/Public Financing AuthorityMarch 3, 2026

City Council/Public Financing Authority
March 3, 2026