Appendix E - Water Quality Data.pdf

Ten Year Operations and Maintenance Plan for the Glendale Narrows Reach of the Los Angeles River

Programmatic Environmental Assessment

Appendix E

Water Quality Data

Jordan Soto, President

FIELD DATA ON TEST SPECIMENS

- - - ASTM C31, C138, C143, C172, C173, C231, C1064 - - -

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 12/07/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY: ACOE

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: RIVER ACCESS TOPPING SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL READY MIX PLANT: 133 GLENDALE MIX #: S70356

TYPE OF CEMENT: II/V ADMIXTURE: TYPE A TICKET #: 290160

SLUMP: 4.50 in. WATER ADDED: 0 gal. AIR TEMP: 64 F CONCRETE TEMP: 70 F MIXING TIME: 0803 min. TIME CAST: 09:05

DATE CAST: 11/30/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: ADAM HUORD SPECIFIED PSI @ 28 Days: 4000

LAB #: 196319

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242631 2242632 2242633 2242634 2242635

AGE DAYS: 7 28 28 HOLD HOLD

DATE TEST: 12/07/2021 12/28/2021 12/28/2021

SIZE (in.): Height X Diameter 12.000 X 6.000 12.000 X 6.000 12.000 X 6.000

AREA (in.²): 28.27 28.27 28.27

CRUSH LOAD (lbs.): 99210 119360 121430

COMPRESSIVE STRENGTH (psi.): 3510 4220 4300

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE: II IV III

C.T.M. USED: Forney96 Forney96 Forney96

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

PRINCIPAL ENGINEER

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 12/07/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY: ACOE

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: RIVER ACCESS TOPPING SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL READY MIX PLANT: 133 GLENDALE MIX #: S70356

TYPE OF CEMENT: II/V ADMIXTURE: TYPE A TICKET #: 290160

SLUMP: 4.50 in. WATER ADDED: 0 gal. AIR TEMP: 64 F CONCRETE TEMP: 70 F MIXING TIME: 0803 min. TIME CAST: 09:05

DATE CAST: 11/30/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: ADAM HUORD SPECIFIED PSI @ 28 Days: 4000

LAB #: 196319

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242636

AGE DAYS: HOLD

DATE TEST:

SIZE (in.): Height X Diameter

AREA (in.²):

CRUSH LOAD (lbs.):

COMPRESSIVE STRENGTH (psi.):

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE:

C.T.M. USED:

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 12/29/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY: CITY

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL READY MIX PLANT: 133 MIX #: S70356

TYPE OF CEMENT: ADMIXTURE: TICKET #: 290197

SLUMP: 4.50 in. WATER ADDED: 0 gal. AIR TEMP: 61 F CONCRETE TEMP: 79 F MIXING TIME: 72 min. TIME CAST: 08:50

DATE CAST: 12/01/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: MIGUEL HERRERA SPECIFIED PSI @ 28 Days: 4000

LAB #: 196341

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242724 2242725 2242726 2242727 2242728

AGE DAYS: 7 28 28 HOLD HOLD

DATE TEST: 12/08/2021 12/29/2021 12/29/2021

SIZE (in.): Height X Diameter 12.000 X 6.000 12.000 X 6.000 12.000 X 6.000

AREA (in.²): 28.27 28.27 28.27

CRUSH LOAD (lbs.): 102510 125610 122360

COMPRESSIVE STRENGTH (psi.): 3630 4440 4330

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE: III III III

C.T.M. USED: Forney96 Forney96 Forney96

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 12/29/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY: CITY

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL READY MIX PLANT: 133 MIX #: S70356

TYPE OF CEMENT: ADMIXTURE: TICKET #: 290197

SLUMP: 4.50 in. WATER ADDED: 0 gal. AIR TEMP: 61 F CONCRETE TEMP: 79 F MIXING TIME: 72 min. TIME CAST: 08:50

DATE CAST: 12/01/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: MIGUEL HERRERA SPECIFIED PSI @ 28 Days: 4000

LAB #: 196341

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242729

AGE DAYS: HOLD

DATE TEST:

SIZE (in.): Height X Diameter

AREA (in.²):

CRUSH LOAD (lbs.):

COMPRESSIVE STRENGTH (psi.):

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE:

C.T.M. USED:

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: JOB #: 200274 DATE: 12/31/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY: GLENDALE

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: UNDER 1ST BRIDGE TOPPING SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL PLANT: MIX #: S70356

TYPE OF CEMENT: II/V ADMIXTURE: WATER REDUCER TICKET #: 275765

SLUMP: 3.75 in. WATER ADDED: 0 gal. AIR TEMP: 61 F CONCRETE TEMP: 69 F MIXING TIME: 0 min. TIME CAST: 08:35

DATE CAST: 12/03/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: FRANCISCO B SPECIFIED PSI @ 28 Days: 4000

LAB #: 196343

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242734 2242735 2242736 2242737 2242738

AGE DAYS: 7 28 28 HOLD HOLD

DATE TEST: 12/10/2021 12/31/2021 12/31/2021

SIZE (in.): Height X Diameter 12.000 X 6.000 12.000 X 6.000 12.000 X 6.000

AREA (in.²): 28.27 28.27 28.27

CRUSH LOAD (lbs.): 105120 130560 128020

COMPRESSIVE STRENGTH (psi.): 3720 4620 4530

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE: II III II

C.T.M. USED: Forney96 Forney96 Forney96

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: JOB #: 200274 DATE: 12/31/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY: GLENDALE

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: UNDER 1ST BRIDGE TOPPING SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL PLANT: MIX #: S70356

TYPE OF CEMENT: II/V ADMIXTURE: WATER REDUCER TICKET #: 275765

SLUMP: 3.75 in. WATER ADDED: 0 gal. AIR TEMP: 61 F CONCRETE TEMP: 69 F MIXING TIME: 0 min. TIME CAST: 08:35

DATE CAST: 12/03/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: FRANCISCO B SPECIFIED PSI @ 28 Days: 4000

LAB #: 196343

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242739

AGE DAYS: HOLD

DATE TEST:

SIZE (in.): Height X Diameter

AREA (in.²):

CRUSH LOAD (lbs.):

COMPRESSIVE STRENGTH (psi.):

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE:

C.T.M. USED:

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 12/30/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY:

ARCHITECT: ENGINEER:

CONTRACTOR: SUB:

LOCATION IN STRUCTURE: SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NA PLANT: 133 MIX #: S70356

TYPE OF CEMENT: ADMIXTURE: TICKET #:

SLUMP: 4.00 in. WATER ADDED: 0 gal. AIR TEMP: 54 F CONCRETE TEMP: 75 F MIXING TIME: 0 min. TIME CAST: 08:30

DATE CAST: 12/02/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: MIGUEL HERRERA SPECIFIED PSI @ 28 Days: 4000

LAB #: 196377

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242874 2242875 2242876 2242877 2242878

AGE DAYS: 7 28 28 HOLD HOLD

DATE TEST: 12/09/2021 12/30/2021 12/30/2021

SIZE (in.): Height X Diameter 12.000 X 6.000 12.000 X 6.000 12.000 X 6.000

AREA (in.²): 28.27 28.27 28.27

CRUSH LOAD (lbs.): 103430 124220 125820

COMPRESSIVE STRENGTH (psi.): 3660 4390 4450

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE: II III II

C.T.M. USED: Forney96 Forney96 Forney96

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 12/30/2021

JOB NAME: LA RIVER PERMIT #: ISSUED BY:

ARCHITECT: ENGINEER:

CONTRACTOR: SUB:

LOCATION IN STRUCTURE: SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NA PLANT: 133 MIX #: S70356

TYPE OF CEMENT: ADMIXTURE: TICKET #:

SLUMP: 4.00 in. WATER ADDED: 0 gal. AIR TEMP: 54 F CONCRETE TEMP: 75 F MIXING TIME: 0 min. TIME CAST: 08:30

DATE CAST: 12/02/2021 RECEIVED AT LAB: 12/06/2021

SPECIMENS MADE BY: MIGUEL HERRERA SPECIFIED PSI @ 28 Days: 4000

LAB #: 196377

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2242879

AGE DAYS: HOLD

DATE TEST:

SIZE (in.): Height X Diameter

AREA (in.²):

CRUSH LOAD (lbs.):

COMPRESSIVE STRENGTH (psi.):

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE:

C.T.M. USED:

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 01/03/2022

JOB NAME: LA RIVER PERMIT #: ISSUED BY:

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL READY MIX PLANT: 133 MIX #: 570356

TYPE OF CEMENT: ADMIXTURE: TICKET #: 290383

SLUMP: 4.50 in. WATER ADDED: 0 gal. AIR TEMP: 66 F CONCRETE TEMP: 78 F MIXING TIME: 0 min. TIME CAST: 10:10

DATE CAST: 12/06/2021 RECEIVED AT LAB: 12/08/2021

SPECIMENS MADE BY: SPECIFIED PSI @ 28 Days: 4000

LAB #: 196590

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2243704 2243705 2243706 2243707 2243708

AGE DAYS: 7 28 28 HOLD HOLD

DATE TEST: 12/13/2021 01/03/2022 01/03/2022

SIZE (in.): Height X Diameter 12.000 X 6.000 12.000 X 6.000 12.000 X 6.000

AREA (in.²): 28.27 28.27 28.27

CRUSH LOAD (lbs.): 103060 124920 123070

COMPRESSIVE STRENGTH (psi.): 3650 4420 4350

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE: II II II

C.T.M. USED: Forney96 Forney96 Forney96

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

CONCRETE: X MORTAR: SHOTCRETE: CORES: GUNITE:

ADDRESS: WESTERN AVE AND RANCHO AVE JOB #: 200274 DATE: 01/03/2022

JOB NAME: LA RIVER PERMIT #: ISSUED BY:

ARCHITECT: ENGINEER:

CONTRACTOR: RIO JORDAN SUB:

LOCATION IN STRUCTURE: SLAB

TRACT: PHASE: LOT #:

CONCRETE SUPPLIER: NATIONAL READY MIX PLANT: 133 MIX #: 570356

TYPE OF CEMENT: ADMIXTURE: TICKET #: 290383

SLUMP: 4.50 in. WATER ADDED: 0 gal. AIR TEMP: 66 F CONCRETE TEMP: 78 F MIXING TIME: 0 min. TIME CAST: 10:10

DATE CAST: 12/06/2021 RECEIVED AT LAB: 12/08/2021

SPECIMENS MADE BY: SPECIFIED PSI @ 28 Days: 4000

LAB #: 196590

TESTING INFORMATION:

SAMPLE IDENTIFICATION: 2243709

AGE DAYS: HOLD

DATE TEST:

SIZE (in.): Height X Diameter

AREA (in.²):

CRUSH LOAD (lbs.):

COMPRESSIVE STRENGTH (psi.):

HEIGHT-DIAMETER RATIO:

CORRECTION FACTOR:

CORRECTED STRENGTH (psi.):

BREAK TYPE:

C.T.M. USED:

REMARKS:

ASTM C39, C174, C192, C470, C617, C42

COMPLIES: DOES NOT COMPLY: X FOR INFORMATION:

THIS REPORT SHALL NOT BE REPRODUCED, EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC.

RESPECTFULLY SUBMITTED

SOUTHWEST INSPECTION AND TESTING

SAMPLES CAST BY OTHERS:

ZAFAR AHMED

ASTM C39 BREAKS: I=CONE - II=CONE AND SPLIT - III=COLUMNAR - IV=SHEAR - V=SIDE FRACTURES - VI=POINTED

11 November 2021

Ms. Dawn Kuykendall and

Mr. Brian McWilliams

BJD Resourcing

18565 Soldedad Canyon Rd #314

Canyon Country, CA 91351

Via email to dawn@bjd-resourcing.com

Re:

Water Monitoring -

Reach 4A

Los Angeles River

Langan Project No.: 721030002

Dear Ms. Kuykendall and Mr. McWilliams, In accordance with the request of BJD Resourcing LLC (BJD), and the Langan proposal authorized on September 22, 2021, Langan Engineering and Environmental Services, Inc, (Langan) performed water quality monitoring at Reach 4A of the Los Angeles River. Reach 4A of the Los Angeles River is located below the Verdugo Wash confluence between Brazil Street and Colorado Street in Los Angeles, CA. It is approximately 1,950 feet long and runs northwest to southeast, paralleling the I-5 freeway. Per the scope of services for Reach 4A of the Los

Angeles River agreed upon in the proposal to BJD Resourcing, Langan measured the water quality both upstream and downstream daily for the first five days of work and then one day per week thereafter during in-stream work. Water quality was measured on October 13-15, 18, 19, and 26. The water quality monitoring field logs are enclosed.

Very truly yours, Langan Engineering and Environmental Services, Inc.

Luis Fernando Navarro, PG

Associate

Enclosure(s):

Attachment 1 - Surface Water Monitoring Field Data Sheets cc: Rory Johnston, Langan, Shari Schwartzer, Langan mailto:dawn@bjd-resourcing.com

Attachment 1

Surface Water Monitoring Field

Data Sheets

Surface Water Monitoring Field Data Sheet

Langan Engineering and Environmental Services

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

11:53 7.11 10.75 19.20 8.90

11:55 7.23 0.12 10.55 -0.20 19.41 0.21 9.80 9%

11:58 7.25 0.02 10.65 0.10 19.59 0.18 9.49 -3%

11:59 7.27 0.02 10.63 -0.02 19.68 0.09 9.63 1%

12:00 7.28 0.01 10.63 0.00 19.76 0.08 9.27 -4%

12:02 7.29 0.01 10.62 -0.01 19.87 0.11 9.86 6%

12:08 7.31 0.02 10.57 -0.05 19.98 0.11 10.90 10%

12:11 7.32 0.01 10.57 0.00 20.07 0.09 8.09 -35%

12:12 7.33 0.01 10.52 -0.05 20.17 0.10 7.71 -5%

12:14 7.34 0.01 10.51 -0.01 20.25 0.08 8.00 4%

12:16 7.35 0.01 10.50 -0.01 20.32 0.07 8.10 1%

12:17 7.36 0.01 10.50 0.00 20.42 0.10 8.33 3%

12:19 7.38 0.02 10.48 -0.02 20.49 0.07 8.15 -2%

16:14 8.09 0.71 9.88 -0.60 23.60 3.11 16.50 51%

16:15 8.08 -0.01 9.59 -0.29 23.58 -0.02 14.10 -17%

16:17 8.08 0.00 9.46 -0.13 23.56 -0.02 13.20 -7%

16:18 8.08 0.00 9.38 -0.08 23.54 -0.02 12.20 -8%

16:19 8.08 0.00 9.36 -0.02 23.53 -0.01 11.80 -3%

16:20 8.09 0.01 9.33 -0.03 23.51 -0.02 14.50 19%

16:21 8.09 0.00 9.28 -0.05 23.49 -0.02 13.40 -8%

16:22 8.09 0.00 9.29 0.01 23.47 -0.02 13.90 4%

16:23 8.10 0.01 9.27 -0.02 23.44 -0.03 13.50 -3%

COMMENTS:

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/13/2021

SW-DS-4AMonitoring Point ID:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

11:13 6.55 12.82 19.93 11.70

11:17 6.73 0.18 12.88 0.06 20.15 0.22 8.19 -43%

11:22 6.82 0.09 12.63 -0.25 20.33 0.18 8.82 7%

11:23 6.90 0.08 11.85 -0.78 20.22 -0.11 13.60 35%

11:26 7.05 0.15 11.89 0.04 20.32 0.10 13.00 -5%

11:28 7.07 0.02 11.28 -0.61 20.44 0.12 11.30 -15%

11:30 7.09 0.02 11.29 0.01 20.48 0.04 12.16 7%

11:31 7.11 0.02 11.29 0.00 20.52 0.04 11.70 -4%

11:33 7.12 0.01 11.29 0.00 20.58 0.06 12.00 3%

15:44 7.78 0.66 10.62 -0.67 23.80 3.22 11.30 -6%

15:48 7.86 0.08 10.64 0.02 23.80 0.00 12.60 10%

15:49 7.90 0.04 10.69 0.05 23.80 0.00 11.00 -15%

15:51 7.94 0.04 10.75 0.06 23.80 0.00 9.68 -14%

15:53 7.97 0.03 10.75 0.00 23.78 -0.02 8.93 -8%

15:55 7.99 0.02 10.77 0.02 23.75 -0.03 12.80 30%

15:57 8.01 0.02 10.79 0.02 23.74 -0.01 10.50 -22%

15:58 8.03 0.02 10.79 0.00 23.79 0.05 9.55 -10%

15:59 8.04 0.01 10.77 -0.02 23.80 0.01 13.40 29%

16:00 8.05 0.01 10.77 0.00 23.77 -0.03 9.93 -35%

16:01 8.05 0.00 10.79 0.02 23.78 0.01 9.35 -6%

16:02 8.06 0.01 10.75 -0.04 23.76 -0.02 9.79 4%

COMMENTS:

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/13/2021

SW-US-4AMonitoring Point ID:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

Site Name:

Project No.:

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

7:45 6.74 9.26 13.05 7.52

7:47 6.69 -0.05 8.22 -1.04 13.04 -0.01 7.61 1%

7:48 6.68 -0.01 7.78 -0.44 13.04 0.00 8.38 9%

7:50 6.67 -0.01 7.59 -0.19 13.03 -0.01 7.06 -19%

7:51 6.67 0.00 7.50 -0.09 13.03 0.00 8.46 17%

7:52 6.67 0.00 7.42 -0.08 13.03 0.00 6.62 -28%

7:53 6.66 -0.01 7.37 -0.05 13.02 -0.01 7.68 14%

7:54 6.66 0.00 7.35 -0.02 13.02 0.00 7.67 0%

7:56 6.65 -0.01 7.32 -0.03 13.01 -0.01 7.46 -3%

7:59 6.64 -0.01 7.29 -0.03 13.01 0.00 7.81 4%

15:57 7.89 1.25 9.63 2.34 24.95 11.94 17.50 55%

15:58 7.92 0.03 9.66 0.03 24.95 0.00 12.80 -37%

16:00 7.94 0.02 9.69 0.03 24.95 0.00 13.10 2%

16:02 7.96 0.02 9.70 0.01 24.94 -0.01 14.40 9%

16:04 7.99 0.03 9.72 0.02 24.94 0.00 13.60 -6%

16:06 8.02 0.03 9.71 -0.01 24.94 0.00 13.80 1%

16:08 8.03 0.01 9.72 0.01 24.93 -0.01 13.80 0%

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/14/2021

SW-DS-4AMonitoring Point ID:

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

7:22 6.86 9.93 13.45 8.92

7:23 6.84 -0.02 9.52 -0.41 13.45 0.00 8.24 -8%

7:24 6.82 -0.02 9.26 -0.26 13.46 0.01 8.28 0%

7:25 6.81 -0.01 8.98 -0.28 13.45 -0.01 7.72 -7%

7:29 6.81 0.00 8.97 -0.01 13.45 0.00 7.90 2%

7:33 6.81 0.00 8.98 0.01 13.45 0.00 7.82 -1%

15:34 6.94 0.13 11.14 2.16 24.63 11.18 13.90 44%

15:36 7.12 0.18 11.16 0.02 24.60 -0.03 14.90 7%

15:37 7.28 0.16 11.23 0.07 24.62 0.02 16.40 9%

15:39 7.44 0.16 11.23 0.00 24.61 -0.01 13.40 -22%

15:40 7.57 0.13 11.27 0.04 24.58 -0.03 14.70 9%

15:42 7.65 0.08 11.28 0.01 24.54 -0.04 14.70 0%

15:43 7.69 0.04 11.30 0.02 24.55 0.01 14.30 -3%

15:45 7.71 0.02 11.28 -0.02 24.53 -0.02 13.59 -5%

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/14/2021

SW-US-4AMonitoring Point ID:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

Site Name:

Project No.:

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

7:06 6.98 7.03 13.56 6.36

7:07 6.95 -0.03 6.97 -0.06 13.55 -0.01 7.60 16%

7:09 6.93 -0.02 6.94 -0.03 13.55 0.00 9.10 16%

7:11 6.91 -0.02 6.95 0.01 13.54 -0.01 7.10 -28%

7:12 6.90 -0.01 6.94 -0.01 13.54 0.00 7.98 11%

7:15 6.88 -0.02 6.97 0.03 13.53 -0.01 8.25 3%

7:16 6.87 -0.01 6.98 0.01 13.52 -0.01 7.56 -9%

7:17 6.86 -0.01 6.99 0.01 13.52 0.00 8.66 13%

7:20 6.84 -0.02 7.00 0.01 13.51 -0.01 6.90 -26%

7:21 6.83 -0.01 7.00 0.00 13.51 0.00 7.54 8%

7:23 6.82 -0.01 7.01 0.01 13.50 -0.01 7.51 0%

7:25 6.81 -0.01 7.03 0.02 13.50 0.00 7.21 -4%

15:51 8.24 1.43 9.43 2.40 27.08 13.58 10.80 33%

15:53 8.22 -0.02 8.95 -0.48 27.08 0.00 13.00 17%

15:54 8.21 -0.01 8.85 -0.10 27.09 0.01 10.40 -25%

15:56 8.20 -0.01 8.84 -0.01 27.09 0.00 11.90 13%

15:58 8.20 0.00 8.82 -0.02 27.09 0.00 11.00 -8%

16:01 8.20 0.00 8.79 -0.03 27.10 0.01 11.00 0%

16:02 8.19 -0.01 8.78 -0.01 27.11 0.01 11.40 4%

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/15/2021

SW-DS-4AMonitoring Point ID:

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

6:41 7.08 7.96 13.46 10.60

6:43 7.09 0.01 7.95 -0.01 13.45 -0.01 9.23 -15%

6:44 7.09 0.00 7.94 -0.01 13.44 -0.01 9.04 -2%

6:47 7.11 0.02 7.57 -0.37 14.08 0.64 9.75 7%

6:48 7.10 -0.01 7.58 0.01 14.08 0.00 8.89 -10%

6:50 7.08 -0.02 7.57 -0.01 14.08 0.00 8.31 -7%

6:51 7.07 -0.01 7.59 0.02 14.08 0.00 8.81 6%

15:22 6.83 -0.24 12.39 4.80 26.86 12.78 15.30 42%

15:24 7.35 0.52 13.28 0.89 26.87 0.01 12.20 -25%

15:25 7.58 0.23 12.43 -0.85 26.83 -0.04 15.50 21%

15:27 7.77 0.19 12.48 0.05 26.81 -0.02 11.70 -32%

15:29 7.93 0.16 12.65 0.17 26.80 -0.01 16.50 29%

15:31 8.02 0.09 12.66 0.01 26.78 -0.02 15.10 -9%

15:32 8.07 0.05 12.67 0.01 26.80 0.02 14.80 -2%

15:34 8.09 0.02 12.67 0.00 26.81 0.01 15.00 1%

15:36 8.10 0.01 12.69 0.02 26.80 -0.01 15.00 0%

15:40 8.11 0.01 12.68 -0.01 26.80 0.00 15.40 3%

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/15/2021

SW-US-4AMonitoring Point ID:

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

7:14 7.20 5.90 16.68 5.77

7:15 7.28 0.08 5.81 -0.09 16.68 0.00 6.65 13%

7:16 7.36 0.08 5.75 -0.06 16.68 0.00 6.63 0%

7:18 7.38 0.02 5.73 -0.02 16.68 0.00 5.97 -11%

7:19 7.39 0.01 5.72 -0.01 16.68 0.00 6.03 1%

7:21 7.42 0.03 5.72 0.00 16.68 0.00 5.38 -12%

7:22 7.43 0.01 5.69 -0.03 16.68 0.00 5.45 1%

7:24 7.43 0.00 5.67 -0.02 16.68 0.00 5.50 1%

15:32 7.43 0.00 10.50 4.83 23.52 6.84 18.00 69%

15:34 7.49 0.06 10.51 0.01 23.51 -0.01 18.00 0%

15:36 7.68 0.19 10.78 0.27 23.52 0.01 18.60 3%

15:40 7.83 0.15 10.77 -0.01 23.53 0.01 18.70 1%

15:41 7.84 0.01 10.76 -0.01 23.54 0.01 18.60 -1%

15:42 7.85 0.01 10.76 0.00 23.54 0.00 18.50 -1%

15:45 7.89 0.04 10.77 0.01 23.55 0.01 17.60 -5%

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

LA River Reach 4A

LA River Reach 4A

721037002

Overcast/Rainy

10/18/2021

SW-DS-4AMonitoring Point ID:

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

7:38 7.48 8.02 16.92 8.99

7:40 7.46 -0.02 7.76 -0.26 16.92 0.00 9.09 1%

7:41 7.43 -0.03 7.63 -0.13 16.92 0.00 8.63 -5%

7:44 7.40 -0.03 7.59 -0.04 16.92 0.00 8.96 4%

7:45 7.38 -0.02 7.58 -0.01 16.92 0.00 9.09 1%

7:47 7.36 -0.02 7.60 0.02 16.91 -0.01 9.44 4%

7:49 7.34 -0.02 7.62 0.02 16.93 0.02 8.99 -5%

15:59 8.27 0.93 13.08 5.46 23.44 6.51 12.40 28%

16:00 8.29 0.02 13.12 0.04 23.42 -0.02 10.80 -15%

16:02 8.33 0.04 13.18 0.06 23.43 0.01 13.10 18%

16:03 8.34 0.01 13.19 0.01 23.42 -0.01 10.30 -27%

16:05 8.36 0.02 13.17 -0.02 23.39 -0.03 10.10 -2%

16:06 8.37 0.01 13.12 -0.05 23.37 -0.02 10.50 4%

16:09 8.39 0.02 13.16 0.04 23.33 -0.04 11.40 8%

16:10 8.40 0.01 13.16 0.00 23.32 -0.01 9.79 -16%

16:11 8.42 0.02 13.14 -0.02 23.30 -0.02 10.20 4%

16:13 8.43 0.01 13.15 0.01 23.31 0.01 9.99 -2%

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

LA River Reach 4A

LA River Reach 4A

721037002

Overcast/Rainy

10/18/2021

SW-US-4AMonitoring Point ID:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

Site Name:

Project No.:

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

6:51 7.42 7.90 14.39 6.28

6:52 7.40 -0.02 7.32 -0.58 14.38 -0.01 7.61 17%

6:55 7.37 -0.03 7.12 -0.20 14.37 -0.01 7.60 0%

6:57 7.31 -0.06 6.99 -0.13 14.35 -0.02 6.06 -25%

7:00 7.34 0.03 7.06 0.07 14.36 0.01 6.88 12%

7:01 7.29 -0.05 6.96 -0.10 14.34 -0.02 6.44 -7%

7:03 7.28 -0.01 6.95 -0.01 14.33 -0.01 7.01 8%

15:56 8.59 1.31 9.25 2.30 24.74 10.41 12.00 42%

15:57 8.59 0.00 9.60 0.35 24.71 -0.03 15.70 24%

15:58 8.57 -0.02 9.58 -0.02 24.70 -0.01 15.70 0%

15:59 8.57 0.00 9.56 -0.02 24.69 -0.01 16.20 3%

16:01 8.56 -0.01 9.57 0.01 24.67 -0.02 15.60 -4%

16:02 8.56 0.00 9.57 0.00 24.65 -0.02 14.70 -6%

16:03 8.56 0.00 9.59 0.02 24.63 -0.02 15.50 5%

16:05 8.57 0.01 9.59 0.00 24.62 -0.01 15.90 3%

16:07 8.57 0.00 9.60 0.01 24.60 -0.02 15.20 -5%

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/19/2021

SW-DS-4AMonitoring Point ID:

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

6:25 7.68 7.48 14.82 6.77

6:27 7.66 -0.02 7.45 -0.03 14.81 -0.01 7.13 5%

6:30 7.61 -0.05 7.44 -0.01 14.79 -0.02 8.35 15%

6:32 7.59 -0.02 7.42 -0.02 14.78 -0.01 7.62 -10%

6:35 7.54 -0.05 7.41 -0.01 14.76 -0.02 7.22 -6%

6:37 7.51 -0.03 7.41 0.00 14.75 -0.01 7.94 9%

15:33 8.08 0.57 12.75 5.34 24.39 9.64 17.90 56%

15:34 8.12 0.04 12.74 -0.01 24.39 0.00 19.40 8%

15:36 8.18 0.06 12.72 -0.02 24.39 0.00 15.70 -24%

15:37 8.23 0.05 12.71 -0.01 24.39 0.00 15.60 -1%

15:39 8.27 0.04 12.68 -0.03 24.41 0.02 16.00 3%

15:41 8.32 0.05 12.67 -0.01 24.42 0.01 16.10 1%

15:42 8.37 0.05 12.64 -0.03 24.40 -0.02 16.40 2%

15:45 8.36 -0.01 12.67 0.03 24.39 -0.01 15.60 -5%

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

LA River Reach 4A

LA River Reach 4A

721037002

Sunny

10/19/2021

SW-US-4AMonitoring Point ID:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

Site Name:

Project No.:

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

7:18 8.27 7.25 13.93 35.30

7:20 8.24 -0.03 7.20 -0.05 13.93 0.00 36.80 4%

7:22 8.23 -0.01 7.16 -0.04 13.92 -0.01 36.80 0%

7:23 8.21 -0.02 7.13 -0.03 13.91 -0.01 37.40 2%

7:25 8.20 -0.01 7.20 0.07 13.90 -0.01 37.30 0%

7:29 8.19 -0.01 7.11 -0.09 13.88 -0.02 36.10 -3%

7:31 8.19 0.00 7.10 -0.01 13.88 0.00 36.20 0%

14:49 8.16 -0.03 6.23 -0.87 23.93 10.05 26.50 -37%

14:51 8.17 0.01 6.23 0.00 23.92 -0.01 24.30 -9%

14:52 8.18 0.01 6.24 0.01 23.91 -0.01 25.80 6%

14:54 8.18 0.00 6.26 0.02 23.91 0.00 26.30 2%

14:56 8.19 0.01 6.26 0.00 23.90 -0.01 25.80 -2%

14:57 8.19 0.00 6.26 0.00 23.90 0.00 26.40 2%

14:58 8.19 0.00 6.26 0.00 23.89 -0.01 25.30 -4%

14:59 8.20 0.01 6.26 0.00 23.89 0.00 25.70 2%

Site Name:

Project No.:

Water Quality Meter Make/Model:

Signature:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

LA River Reach 4A

LA River Reach 4A

721037002

Clear, Heavy Rains on 10/25/21

10/26/2021

SW-DS-4AMonitoring Point ID:

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

Water diverted from N to S side of channel

READING CHANGE* READING CHANGE* READING CHANGE* READING CHANGE*

6:51 8.58 8.24 14.37 35.10

6:53 8.57 -0.01 8.23 -0.01 14.36 -0.01 38.50 9%

6:54 8.55 -0.02 8.23 0.00 14.36 0.00 38.80 1%

6:56 8.51 -0.04 8.28 0.05 14.36 0.00 38.80 0%

6:58 8.48 -0.03 8.08 -0.20 14.34 -0.02 39.40 2%

7:00 8.47 -0.01 8.05 -0.03 14.34 0.00 39.90 1%

7:01 8.43 -0.04 8.01 -0.04 14.34 0.00 38.90 -3%

7:02 8.41 -0.02 8.01 0.00 14.33 -0.01 38.10 -2%

7:05 8.43 0.02 8.01 0.00 14.33 0.00 38.40 1%

15:16 8.24 -0.19 6.12 -1.89 23.44 9.11 22.30 -72%

15:18 8.26 0.02 6.12 0.00 23.44 0.00 24.10 7%

15:19 8.29 0.03 6.14 0.02 23.43 -0.01 22.70 -6%

15:20 8.30 0.01 6.13 -0.01 23.44 0.01 22.40 -1%

15:22 8.31 0.01 6.07 -0.06 23.43 -0.01 22.30 0%

15:24 8.33 0.02 6.02 -0.05 23.40 -0.03 21.80 -2%

15:25 8.33 0.00 6.02 0.00 23.39 -0.01 21.70 0%

15:27 8.34 0.01 6.02 0.00 23.39 0.00 21.40 -1%

*PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN:

± 0.1 to 0.2 for pH;

±0.2 to 0.3 mg/L for Dissolved Oxygen;

± 0.2°C for Temperature;

± 5% for Turbidity

TEMPERATURE

(°C)

NOTES

TIME

pH

(standard units)

DISSOLVED

OXYGEN

(mg/L)

TURBIDITY

(NTU)

LA River Reach 4A

LA River Reach 4A

721037002

Clear, Heavy Rains on 10/25/21

10/26/2021

SW-US-4AMonitoring Point ID:

YSI 556 MPS/Hach 2100Q

Turbidity Meter

Rachel Owen

Location:

Weather:

Date:

Water Quality Meter Serial #:

Field Personnel:

Site Name:

Project No.:

ANALYTICAL REPORT

TestAmerica Laboratories, Inc.

TestAmerica Irvine 17461 Derian Ave Suite 100 Irvine, CA 92614-5817 Tel: (949)261-1022

TestAmerica Job ID: 440-173400-1 Client Project/Site: Associates De-watering/LA River Project

For:

Associates Environmental Inc 16882 Bolsa Chica Street Ste 202 Huntington Beach, California 92649

Attn: Marissa Yakus

Authorized for release by:

1/27/2017 2:01:51 PM

Danielle Roberts, Senior Project Manager (949)261-1022 danielle.roberts@testamericainc.com

The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory.

https://secure.testamericainc.com/TotalAccess/login.aspx http://www.testamericainc.com/AskTheExpert/Expert_index.htm http://www.testamericainc.com mailto:danielle.roberts@testamericainc.com

Table of Contents

Client: Associates Environmental Inc Project/Site: Associates De-watering/LA River Project

TestAmerica Job ID: 440-173400-1

TestAmerica Irvine

1/27/2017

Cover Page

Table of Contents

Sample Summary

Case Narrative

Client Sample Results

Method Summary

Lab Chronicle

QC Sample Results

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Isotope Dilution Summary

Sample Summary TestAmerica Job ID: 440-173400-1Client: Associates Environmental Inc

Project/Site: Associates De-watering/LA River Project

Lab Sample ID Client Sample ID ReceivedCollectedMatrix

440-173400-1 HP Water 01/13/17 10:30 01/13/17 12:10

TestAmerica Irvine

Page 3 of 55 1/27/2017

Case Narrative Client: Associates Environmental Inc TestAmerica Job ID: 440-173400-1 Project/Site: Associates De-watering/LA River Project

Job ID: 440-173400-1

Laboratory: TestAmerica Irvine

Narrative

Job Narrative 440-173400-1

Comments

No additional comments.

Receipt

The sample was received on 1/13/2017 12:10 PM; the sample arrived in good condition, properly preserved and, where required, on ice.

The temperature of the cooler at receipt was 8.2º C.

Receipt Exceptions The following sample was received at the laboratory outside the required temperature criteria: HP. The sample is considered acceptable since it was collected and submitted to the laboratory on the same day and there is evidence that the chilling process has begun.

GC/MS VOA

Method(s) 8260B: The matrix spike / matrix spike duplicate (MS/MSD) precision for analytical batch 440-383075 was outside control limits.

Sample matrix interference is suspected.

Method(s) 8260B: TBA-d9 internal standard (ISTD) response for the following samples was below acceptance criteria: HP (440-173400-1). This ISTD does not correspond to any of the requested target compounds; therefore, the data have been reported.

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

GC/MS Semi VOA Method(s) 8270C: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with preparation batch 440-382179 and analytical batch 440-383005. The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch.

Method(s) 8270C LL: Surrogate recovery for the following sample was outside control limits: HP (440-173400-1). Evidence of matrix interference is present; therefore, re-extraction and/or re-analysis was not performed.

Method(s) 8270C LL: The continuing calibration verification (CCV) associated with batch 440-382994 recovered above the upper control limit for 4-Methylphenol, Hexachlorocyclopentadiene and Aniline. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported.

Method(s) 8270C LL: The following compounds were outside control limits in the continuing calibration verification (CCV) associated with batch 440-382994: Isophorone. These compounds are not classified as Calibration Check Compounds (CCCs) in the reference method, and the laboratory defaults to in-house and/or project-specific criteria for evaluation. A standard was run at the reporting limit for this compound to demonstrate sufficient instrument sensitivity. The associated samples were non-detect for the affected analytes.

Method(s) 8270C LL: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with preparation batch 440-382196 and analytical batch 440-382994. The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch.

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

HPLC/IC

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

GC VOA

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

GC Semi VOA

Method(s) 8015B: Hydrocarbon result partly due to individual peak in quantitation range. HP (440-173400-1)

TestAmerica Irvine Page 4 of 55 1/27/2017

Case Narrative

Project/Site: Associates De-watering/LA River Project

Job ID: 440-173400-1 (Continued)

Laboratory: TestAmerica Irvine (Continued)

Method(s) 8015B: The method blank for preparation batch 440-382171 and analytical batch 440-382369 contained C10-C28 and

C13-C22 above the method detection limit. This target analyte concentration was less than the reporting limit (RL); therefore, re-extraction and/or re-analysis of samples was not performed.

Method(s) 8015B: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with batch 440-382171 The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch.

Method(s) 608: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate/sample duplicate

(MS/MSD/DUP) associated with preparation batch 440-382170 and analytical batch 440-382580. The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch.

Method(s) 608: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with preparation batch 440-382170 and analytical batch 440-382466. The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch.

Method(s) 8015B: The source sample for the MS/MSD associated with batch 440-382803 was diluted due to the abundance of target analytes : (LCS 440-382803/8). Because of this dilution, the surrogate spike and matrix spike concentration in the sample was reduced to a level where the recovery calculation does not provide useful information.

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

Metals

Method(s) 200.7 Rev 4.4: The following sample was diluted due to the nature of the sample matrix: HP (440-173400-1). Elevated reporting limits (RLs) are provided.

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

General Chemistry No analytical or quality issues were noted, other than those described 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.

TestAmerica Irvine Page 5 of 55 1/27/2017

Client Sample Results

Project/Site: Associates De-watering/LA River Project

Lab Sample ID: 440-173400-1Client Sample ID: HP Matrix: WaterDate Collected: 01/13/17 10:30

Date Received: 01/13/17 12:10

Method: 624 - Volatile Organic Compounds (GC/MS)

RL

2-Chloroethyl vinyl ether ND 2.0 1.0 ug/L 01/14/17 18:11 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

5.0 2.5 ug/L 01/14/17 18:11 1Acrolein ND

2.0 1.0 ug/L 01/14/17 18:11 1Acrylonitrile ND

Toluene-d8 (Surr) 106 80 - 128 01/14/17 18:11 1

Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery

Dibromofluoromethane (Surr) 107 01/14/17 18:11 176 - 132

4-Bromofluorobenzene (Surr) 98 01/14/17 18:11 180 - 120

Method: 8260B - Volatile Organic Compounds (GC/MS)

RL

1,1,1,2-Tetrachloroethane ND 0.50 0.25 ug/L 01/19/17 12:30 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.50 0.25 ug/L 01/19/17 12:30 11,1,1-Trichloroethane ND

0.50 0.25 ug/L 01/19/17 12:30 11,1,2,2-Tetrachloroethane ND

0.50 0.25 ug/L 01/19/17 12:30 11,1,2-Trichloroethane ND

0.50 0.25 ug/L 01/19/17 12:30 11,1-Dichloroethane ND

0.50 0.25 ug/L 01/19/17 12:30 11,1-Dichloroethene 0.64

0.50 0.25 ug/L 01/19/17 12:30 11,1-Dichloropropene ND

1.0 0.40 ug/L 01/19/17 12:30 11,2,3-Trichlorobenzene ND

1.0 0.40 ug/L 01/19/17 12:30 11,2,3-Trichloropropane ND

1.0 0.40 ug/L 01/19/17 12:30 11,2,4-Trichlorobenzene ND

0.50 0.25 ug/L 01/19/17 12:30 11,2,4-Trimethylbenzene ND

1.0 0.50 ug/L 01/19/17 12:30 11,2-Dibromo-3-Chloropropane ND

0.50 0.25 ug/L 01/19/17 12:30 11,2-Dibromoethane (EDB) ND

0.50 0.25 ug/L 01/19/17 12:30 11,2-Dichlorobenzene ND

0.50 0.25 ug/L 01/19/17 12:30 11,2-Dichloroethane ND

0.50 0.25 ug/L 01/19/17 12:30 11,2-Dichloropropane ND

0.50 0.25 ug/L 01/19/17 12:30 11,3-Dichlorobenzene ND

0.50 0.25 ug/L 01/19/17 12:30 11,3-Dichloropropane ND

0.50 0.25 ug/L 01/19/17 12:30 11,4-Dichlorobenzene ND

1.0 0.40 ug/L 01/19/17 12:30 12,2-Dichloropropane ND

0.50 0.25 ug/L 01/19/17 12:30 12-Chlorotoluene ND

0.50 0.25 ug/L 01/19/17 12:30 14-Chlorotoluene ND

0.50 0.25 ug/L 01/19/17 12:30 1Benzene ND

0.50 0.25 ug/L 01/19/17 12:30 1Bromobenzene ND

0.50 0.25 ug/L 01/19/17 12:30 1Bromochloromethane ND

0.50 0.25 ug/L 01/19/17 12:30 1Bromodichloromethane ND

1.0 0.40 ug/L 01/19/17 12:30 1Bromoform ND

0.50 0.25 ug/L 01/19/17 12:30 1Bromomethane ND

0.50 0.25 ug/L 01/19/17 12:30 1Carbon tetrachloride 0.60

0.50 0.25 ug/L 01/19/17 12:30 1Chlorobenzene ND

1.0 0.40 ug/L 01/19/17 12:30 1Chloroethane ND

0.50 0.25 ug/L 01/19/17 12:30 1Chloroform 1.1

0.50 0.25 ug/L 01/19/17 12:30 1Chloromethane ND

0.50 0.25 ug/L 01/19/17 12:30 1cis-1,2-Dichloroethene 1.2

0.50 0.25 ug/L 01/19/17 12:30 1cis-1,3-Dichloropropene ND

0.50 0.25 ug/L 01/19/17 12:30 1Dibromochloromethane ND

0.50 0.25 ug/L 01/19/17 12:30 1Dibromomethane ND

1.0 0.40 ug/L 01/19/17 12:30 1Dichlorodifluoromethane ND

0.50 0.25 ug/L 01/19/17 12:30 1Isopropyl Ether (DIPE) ND

TestAmerica Irvine

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Project/Site: Associates De-watering/LA River Project

Lab Sample ID: 440-173400-1Client Sample ID: HP Matrix: WaterDate Collected: 01/13/17 10:30

Date Received: 01/13/17 12:10

Method: 8260B - Volatile Organic Compounds (GC/MS) (Continued)

RL

Ethyl-t-butyl ether (ETBE) ND 0.50 0.25 ug/L 01/19/17 12:30 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.50 0.25 ug/L 01/19/17 12:30 1Hexachlorobutadiene ND

0.50 0.25 ug/L 01/19/17 12:30 1Isopropylbenzene ND

1.0 0.50 ug/L 01/19/17 12:30 1m,p-Xylene ND

2.0 0.88 ug/L 01/19/17 12:30 1Methylene Chloride ND

0.50 0.25 ug/L 01/19/17 12:30 1Methyl-t-Butyl Ether (MTBE) ND

1.0 0.40 ug/L 01/19/17 12:30 1Naphthalene ND

1.0 0.40 ug/L 01/19/17 12:30 1n-Butylbenzene ND

0.50 0.25 ug/L 01/19/17 12:30 1N-Propylbenzene ND

0.50 0.25 ug/L 01/19/17 12:30 1o-Xylene ND

0.50 0.25 ug/L 01/19/17 12:30 1p-Isopropyltoluene ND

0.50 0.25 ug/L 01/19/17 12:30 1sec-Butylbenzene ND

0.50 0.25 ug/L 01/19/17 12:30 1Styrene ND

0.50 0.25 ug/L 01/19/17 12:30 1Tert-amyl-methyl ether (TAME) ND

0.50 0.25 ug/L 01/19/17 12:30 1tert-Butylbenzene ND

0.50 0.25 ug/L 01/19/17 12:30 1Tetrachloroethene 3.7

0.50 0.25 ug/L 01/19/17 12:30 1Toluene ND

0.50 0.25 ug/L 01/19/17 12:30 1trans-1,2-Dichloroethene ND

0.50 0.25 ug/L 01/19/17 12:30 1trans-1,3-Dichloropropene ND

0.50 0.25 ug/L 01/19/17 12:30 1Trichloroethene 56

0.50 0.25 ug/L 01/19/17 12:30 1Trichlorofluoromethane 0.25 J

0.50 0.25 ug/L 01/19/17 12:30 1Vinyl chloride ND

1.0 0.50 ug/L 01/19/17 12:30 1Xylenes, Total ND

0.50 0.25 ug/L 01/19/17 12:30 11,3,5-Trimethylbenzene ND

0.50 0.25 ug/L 01/19/17 12:30 1Ethylbenzene ND

4-Bromofluorobenzene (Surr) 100 80 - 120 01/19/17 12:30 1

Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery

Dibromofluoromethane (Surr) 103 01/19/17 12:30 176 - 132

Toluene-d8 (Surr) 104 01/19/17 12:30 180 - 128

Method: 8260B - Volatile Organic Compounds (GC/MS) - RA

RL

tert-Butyl alcohol (TBA) ND 10 5.0 ug/L 01/19/17 13:29 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

150 75 ug/L 01/19/17 13:29 1Ethanol ND

4-Bromofluorobenzene (Surr) 94 80 - 120 01/19/17 13:29 1

Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery

Dibromofluoromethane (Surr) 94 01/19/17 13:29 176 - 132

Toluene-d8 (Surr) 101 01/19/17 13:29 180 - 128

Method: 8270C LL - Semivolatile Organic Compounds by GCMS - Low Levels

RL

1,2,4-Trichlorobenzene ND 1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 11,2-Dichlorobenzene ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 11,2-Diphenylhydrazine(as

Azobenzene)

ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 11,3-Dichlorobenzene ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 11,4-Dichlorobenzene ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 12,4,5-Trichlorophenol ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 12,4,6-Trichlorophenol ND

TestAmerica Irvine

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Project/Site: Associates De-watering/LA River Project

Lab Sample ID: 440-173400-1Client Sample ID: HP Matrix: WaterDate Collected: 01/13/17 10:30

Date Received: 01/13/17 12:10

Method: 8270C LL - Semivolatile Organic Compounds by GCMS - Low Levels (Continued)

RL

2,4-Dichlorophenol ND 2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 12,4-Dimethylphenol ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 12,4-Dinitrophenol ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 12,4-Dinitrotoluene ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 12,6-Dinitrotoluene ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 12-Chloronaphthalene ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 12-Chlorophenol ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 12-Methylnaphthalene ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 12-Methylphenol ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 12-Nitroaniline ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 12-Nitrophenol ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 13,3'-Dichlorobenzidine ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 13-Nitroaniline ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 14,6-Dinitro-2-methylphenol ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 14-Bromophenyl phenyl ether ND

2.0 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 14-Chloro-3-methylphenol ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 14-Chloroaniline ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 14-Chlorophenyl phenyl ether ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 13-Methylphenol + 4-Methylphenol ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 14-Nitroaniline ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 14-Nitrophenol ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Acenaphthene ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Acenaphthylene ND

10 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Aniline ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Anthracene ND

10 5.1 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzidine ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzo[a]anthracene ND

2.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzo[a]pyrene ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzo[b]fluoranthene ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzo[g,h,i]perylene ND

0.51 0.25 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzo[k]fluoranthene ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzoic acid ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Benzyl alcohol ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Bis(2-chloroethoxy)methane ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Bis(2-chloroethyl)ether ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Bis(2-ethylhexyl) phthalate ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Butyl benzyl phthalate ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Chrysene ND

0.51 0.25 ug/L 01/16/17 09:47 01/18/17 20:53 1Dibenz(a,h)anthracene ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Dibenzofuran ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Diethyl phthalate ND

0.51 0.25 ug/L 01/16/17 09:47 01/18/17 20:53 1Dimethyl phthalate ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Fluoranthene ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Fluorene ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Hexachlorobenzene ND

2.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Hexachlorobutadiene ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Hexachlorocyclopentadiene ND

3.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Hexachloroethane ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Indeno[1,2,3-cd]pyrene ND

TestAmerica Irvine

Page 8 of 55 1/27/2017

Project/Site: Associates De-watering/LA River Project

Lab Sample ID: 440-173400-1Client Sample ID: HP Matrix: WaterDate Collected: 01/13/17 10:30

Date Received: 01/13/17 12:10

Method: 8270C LL - Semivolatile Organic Compounds by GCMS - Low Levels (Continued)

RL

Isophorone ND 1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Naphthalene ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Nitrobenzene ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 1N-Nitrosodi-n-propylamine ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1N-Nitrosodiphenylamine ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Pentachlorophenol ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Phenanthrene ND

1.0 0.51 ug/L 01/16/17 09:47 01/18/17 20:53 1Phenol ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1bis (2-chloroisopropyl) ether ND

2.0 1.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Di-n-butyl phthalate ND

5.1 2.0 ug/L 01/16/17 09:47 01/18/17 20:53 1Di-n-octyl phthalate ND

0.51 0.20 ug/L 01/16/17 09:47 01/18/17 20:53 1Pyrene ND

2,4,6-Tribromophenol (Surr) 39 X 40 - 120 01/16/17 09:47 01/18/17 20:53 1

Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery

2-Fluorobiphenyl 53 01/16/17 09:47 01/18/17 20:53 150 - 120

2-Fluorophenol (Surr) 60 01/16/17 09:47 01/18/17 20:53 130 - 120

Nitrobenzene-d5 (Surr) 58 01/16/17 09:47 01/18/17 20:53 145 - 120

Phenol-d6 (Surr) 65 01/16/17 09:47 01/18/17 20:53 135 - 120

Terphenyl-d14 (Surr) 18 X 01/16/17 09:47 01/18/17 20:53 137 - 144

Method: 8270C - Semivolatile Organic Compounds (GC/MS)

RL

1,4-Dioxane ND 1.1 0.26 ug/L 01/16/17 08:57 01/18/17 19:43 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1,4-Dioxane-d8 (Surr) 45 30 - 120 01/16/17 08:57 01/18/17 19:43 1

Surrogate Dil…