2025-11-18; City Council; 05; Adoption of Plans, Specifications and Contract Documents, Authorization to Advertise for Bids for the Poinsettia Lane Sewer Improvements and Bressi Sewer Manhole Rehabili — Carlsbad City Council, November 18, 2025 (part 4 of 4)

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 I 9/25

LATERAL EARTH PRESSURES FOR

UNDERGROUND STRUCTURES

1. GROUNDWATER TABLE

4. 2
h
h
H

UPLIFT PRESSURE
1 +

WATER PRESSURESTATIC PRESSURE

FINISHED GRADE

5. H, h AND h ARE IN FEET1 2
WP 02P
UP
P 01

2. 6.

3. NOT TO SCALE
NOTES:

SURCHARGE PRESSURES CAUSED BY VEHICLES

OR NEARBY STRUCTURES ARE NOT INCLUDED

BACKFILL

UNDERGROUND

STRUCTURE
01 02
01 1
102 2
w 2
w
2u
u

APPARENT LATERAL EARTH PRESSURES, P AND P

HYDROSTATIC PRESSURE, P
P = 62.4h psf

UPLIFT PRESSURE, P
P = 62.4h psf
P = 69 h psf
P = 69 h + 35 h psf
110120001_D.dwg_LEP-US 09/24/2025 DRAFTED BY: JDL
FIGURE 9

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 I 9/25

UPLIFT RESISTANCE DIAGRAM FOR

UNDERGROUND STRUCTURES

1. = 127.5 pcf ABOVE GROUNDWATER TABLE

UNIT WEIGHT OF SOILS, OR
= 65 pcf BELOW GROUNDWATER TABLE

SOIL WEDGE A
Z
P
20°

FINISHED GRADE
h1
2h
H
RESISTANCE TO UPLIFT = WEIGHT OF STRUCTURE + WEIGHT OF SOIL WEDGE A UPLIFT PRESSURE, P2.
2 b
b

3. H, Z, h AND h ARE IN FEET1 2
u
P = 62.4 h psf
u
u

NOT TO SCALE

UNDERGROUND

STRUCTURE
NOTES:
110120001_D.dwg_UR 09/24/2025 DRAFTED BY: JDL

3. GROUNDWATER TABLE

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPENDIX A
Borin g Logs

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPENDIX A

BORING LOGS
Field Procedure for the Collection of Disturbed Samples Disturbed soil samples were obtained in the field using the following method.

Bulk Samples
Bulk samples of representative earth materials were obtained from the exploratory borings.

The samples were bagged and transported to the laboratory for testing.

Field Procedure for the C ollection of Relatively Undisturbed Samples Relatively undisturbed soil samples were obtained in the field using the following method.

The Modified Split-Barrel Dr ive Sampler
The sampler, with an external diameter of 3 inches, was lined with 1-inch-long, thin brass rings with inside diameters of approximately 2.4 inche s. The sample barrel was driven into the ground with the weight of a ha mmer in general accordance with ASTM D 3550. The driving weight was permitted to fall freely. The approximate length of the fall, the weight of the hammer, and the number of blows per foot of driving are presented on the boring logs as an index to the relative resistance of the materials sampled. The samples were removed from the sample barrel in the brass rings, sealed, and transported to the laboratory for testing. 0 5
10 15
20 XX/XX
SM
CL
Bulk sample.

Modified split-barrel drive sampler.

No recovery with modified split-barrel drive sampler.

Sample retained by others.

Standard Penetration Test (SPT).

No recovery with a SPT.

Shelby tube sample. Distance pushed in inches/length of sample recovered in inches.

No recovery with Shelby tube sampler.

Continuous Push Sample.

Seepage.

Groundwater encountered during drilling.

Groundwater measured after drilling.

MAJOR MATERIAL TYPE (SOIL):

Solid line denotes unit change.

Dashed line denotes material change.

Attitudes: Strike/Dip
b: Bedding
c: Contact
j: Joint
f: Fracture
F: Fault
cs: Clay Seam
s: Shear
bss: Basal Slide Surface
sf: Shear Fracture
sz: Shear Zone
sbs: Shear Bedding Surface
The total depth line is a solid line that is drawn at the bottom of the boring.

DEPTH (feet)
Bulk SAMPLESDriven

BLOWS/FOOT
MOISTURE (%)

DRY DENSITY (PCF)
SYMBOL

CLASSIFICATION
U.S.C.S.

BORING LOG EXPLANATION SHEET

BORING LOG
20 Soil Classification Chart Per ASTM D 2488
Primary Divisions
Secondary Divisions
Group Symbol Group Name

COARSE-

GRAINED
SOILS
more than
50% retained
on No. 200
sieve
GRAVEL
more than
50% of
coarse
fraction
retained on
No. 4 sieve

CLEAN GRAVEL
less than 5% fines
GW well-graded GRAVEL
GP poorly graded GRAVEL
GRAVEL with
DUAL

CLASSIFICATIONS
5% to 12% fines
GW-GM well-graded GRAVEL with silt
GP-GM poorly graded GRAVEL with silt
GW-GC well-graded GRAVEL with clay
GP-GC poorly graded GRAVEL with clay
GRAVEL with
FINES
more than
12% fines
GM silty GRAVEL
GC clayey GRAVEL
GC-GM silty, clayey GRAVEL
SAND
50% or more
of coarse
fraction
passes
No. 4 sieve

CLEAN SAND
less than 5% fines
SW well-graded SAND
SP poorly graded SAND
SAND with
DUAL

CLASSIFICATIONS
5% to 12% fines
SW-SM well-graded SAND with silt
SP-SM poorly graded SAND with silt
SW-SC well-graded SAND with clay
SP-SC poorly graded SAND with clay
SAND with FINES
more than
12% fines
SM silty SAND
SC clayey SAND
SC-SM silty, clayey SAND
FINE-

GRAINED
SOILS
50% or
more passes
No. 200 sieve
SILT and
CLAY
liquid limit
less than 50%

INORGANIC
CL lean CLAY

ML SILT
CL-ML silty CLAY

ORGANIC
OL (PI > 4) organic CLAY
OL (PI < 4) organic SILT
SILT and
CLAY
liquid limit
50% or more

INORGANIC
CH fat CLAY
MH elastic SILT

ORGANIC
OH (plots on or
above “A”-line) organic CLAY
OH (plots
below “A”-line) organic SILT
Highly Organic Soils PT Peat

USCS METHOD OF SOIL CLASSIFICATION
Apparent Density - Coarse-Grained Soil
Apparent
Density
Spooling Cable or Cathead Automatic Trip Hammer
SPT
(blows/foot)
Modified
Split Barrel
(blows/foot)
SPT
(blows/foot)
Modified
Split Barrel
(blows/foot)
Very Loose < 4 < 8 < 3 < 5
Loose 5 - 10 9 - 21 4 - 7 6 - 14
Medium
Dense 11 - 30 22 - 63 8 - 20 15 - 42
Dense 31 - 50 64 - 105 21 - 33 43 - 70
Very Dense > 50 > 105 > 33 > 70
Consistency - Fine-Grained Soil
Consis-
tency
Spooling Cable or Cathead Automatic Trip Hammer
SPT
(blows/foot)
Modified
Split Barrel
(blows/foot)
SPT
(blows/foot)
Modified
Split Barrel
(blows/foot)
Very Soft < 2 < 3 < 1 < 2
Soft 2 - 4 3 - 5 1 - 3 2 - 3
Firm 5 - 8 6 - 10 4 - 5 4 - 6
Stiff 9 - 15 11 - 20 6 - 10 7 - 13
Very Stiff 16 - 30 21 - 39 11 - 20 14 - 26
Hard > 30 > 39 > 20 > 26
LIQUID LIMIT (LL), %
PLASTICITY INDEX (PI), %
0 10
10 7
4 20
30 40
50 60
70 0
20 30 40 50 60 70 80 90 100
MH or OH
ML or OLCL - ML
Plasticity Chart
Grain Size
Description Sieve
Size Grain Size Approximate
Size
Boulders > 12” > 12” Larger than
basketball-sized
Cobbles 3 - 12” 3 - 12” Fist-sized to
basketball-sized
Gravel
Coarse 3/4 - 3” 3/4 - 3” Thumb-sized to
fist-sized
Fine #4 - 3/4” 0.19 - 0.75” Pea-sized to
thumb-sized
Sand
Coarse #10 - #4 0.079 - 0.19” Rock-salt-sized to
pea-sized
Medium #40 - #10 0.017 - 0.079” Sugar-sized to
rock-salt-sized
Fine #200 - #40 0.0029 -

0.017”
Flour-sized to
sugar-sized
Fines Passing
#200 < 0.0029” Flour-sized and
smaller
CH or OH
CL or OL

0 5
10 15
20 12
26 14

16.1 10.8

17.6 105.3
113.8
110.1
SC
SC
CL
DECORATIVE PAVERS:

Approximately 3 inches thick.

AGGREGATE BASE:

Approximately 4 inches thick.

FILL:

Mottled brown, light brown and gray, moist, medium dense, clayey SAND.

Loose.

Scattered subrounded fine gravel.

Scattered fragments of formational materials.

ALLUVIUM:

Black to dark gray, moist, medium dense, clayey SAND; scattered decomposed rootlets.

Gray to grayish brown.

Loose.

Grayish brown, moist, stiff to very stiff, sandy lean CLAY.

Wet.

FIGURE A- 1

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
DEPTH (feet)
Bulk SAMPLESDriven

BLOWS/FOOT
MOISTURE (%)

DRY DENSITY (PCF)
SYMBOL

CLASSIFICATION
U.S.C.S.

DESCRIPTION/INTERPRETATION
DATE DRILLED 8/4/25 BORING NO. MW-1
GROUND ELEVATION 111'(MSL) SHEET 1 OF
METHOD OF DRILLING 8" Diameter Hollow Stem Auger (CME-95) DRIVE WEIGHT 140 lbs. (Auto Trip Hammer) DROP 30"

SAMPLED BY SJQ LOGGED BY SJQ REVIEWED BY CAT
2 20
25 30
35 40
24 19.3 108.6
CL ALLUVIUM: (Continued)
Grayish brown, wet, very stiff, sandy lean CLAY.

Total Depth = 21.5 feet.

Groundwater encountered at 18.5 feet during drilling.

Converted to monitoring well on August 4, 2025. See Figure A-5 for well construction diagram.

Note:

Groundwater may rise to a level higher than that measured in borehole due to seasonal variations in precipitation and several other factors as discussed in the report.

The ground elevation shown above is an estimation only. It is based on our interpretations of published maps and other documents reviewed for the purposes of this evaluation. It is not sufficiently accurate for preparing construction bids and design documents.

FIGURE A- 2

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
DEPTH (feet)
Bulk SAMPLESDriven

BLOWS/FOOT
MOISTURE (%)

DRY DENSITY (PCF)
SYMBOL

CLASSIFICATION
U.S.C.S.

DESCRIPTION/INTERPRETATION
DATE DRILLED 8/4/25 BORING NO. MW-1
GROUND ELEVATION 111'(MSL) SHEET 2 OF
METHOD OF DRILLING 8" Diameter Hollow Stem Auger (CME-95) DRIVE WEIGHT 140 lbs. (Auto Trip Hammer) DROP 30"

SAMPLED BY SJQ LOGGED BY SJQ REVIEWED BY CAT
2 0
5 10
15 20
77 23
35 18.5

17.8 15.3
107.5
109.2
113.0
SC
DECORATIVE PAVERS:

Approximately 3 inches thick.

AGGREGATE BASE:

Approximately 4 inches thick.

FILL:

Mottled light brown, reddish brown, brown and gray, moist, medium dense, clayey SAND; scattered subangular fine gravel.

Very dense.

Mottled light brown; gray and reddish brown; medium dense, scattered interbedded claystone fragments (fine gravel size).

FIGURE A- 3

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
DEPTH (feet)
Bulk SAMPLESDriven

BLOWS/FOOT
MOISTURE (%)

DRY DENSITY (PCF)
SYMBOL

CLASSIFICATION
U.S.C.S.

DESCRIPTION/INTERPRETATION
DATE DRILLED 8/5/25 BORING NO. MW-2
GROUND ELEVATION 168'(MSL) SHEET 1 OF
METHOD OF DRILLING 8" Diameter Hollow Stem Auger (CME-95) DRIVE WEIGHT 140 lbs. (Auto Trip Hammer) DROP 30"

SAMPLED BY SJQ LOGGED BY SJQ REVIEWED BY CAT
2 20
25 30
35 40
40 30
13 15.4

17.0 21.2
111.9
106.8
105.0
SC
SC
FILL:

Mottled light brown, gray and reddish brown, moist, medium dense, clayey SAND.

ALLUVIUM:

Light brown and yellowish brown, moist, medium dense, clayey SAND.

Wet.

Loose.

Total Depth = 31.5 feet.

Groundwater encountered at 28 feet during drilling.

Converted to monitoring well MW-2 on August 5, 2025. See Figure A-6 for well construction diagram.

Note:

Groundwater may rise to a level higher than that measured in borehole due to seasonal variations in precipitation and several other factors as discussed in the report.

FIGURE A- 4

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
DEPTH (feet)
Bulk SAMPLESDriven

BLOWS/FOOT
MOISTURE (%)

DRY DENSITY (PCF)
SYMBOL

CLASSIFICATION
U.S.C.S.

DESCRIPTION/INTERPRETATION
DATE DRILLED 8/5/25 BORING NO. MW-2
GROUND ELEVATION 168'(MSL) SHEET 2 OF
METHOD OF DRILLING 8" Diameter Hollow Stem Auger (CME-95) DRIVE WEIGHT 140 lbs. (Auto Trip Hammer) DROP 30"

SAMPLED BY SJQ LOGGED BY SJQ REVIEWED BY CAT
2 FIGURE A-5

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 I 9/25
MONITORING WELL CONSTRUCTION DIAGRAM, MW-1

NOT TO SCALE
110120001_D.dwg_MW-1 09/24/2025 DRAFTED BY: JDL
NOTE: DIMENSIONS, DIRECTIONS AND LOCATIONS ARE APPROXIMATE.

MONITORING WELL NO.1
COMPLETION DATE: 8/4/25
FIGURE A-6

POINSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 I 9/25
MONITORING WELL CONSTRUCTION DIAGRAM, MW-2
110120001_D.dwg_MW-2 09/24/2025 DRAFTED BY: JDL

NOT TO SCALE
NOTE: DIMENSIONS, DIRECTIONS AND LOCATIONS ARE APPROXIMATE.

MONITORING WELL NO.2
COMPLETION DATE: 8/5/25

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPEN DIX B
Geotechni cal Laboratory Testing

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPENDIX B

GEOTECHNICAL LABORATORY TESTING
Classification
Soils were visually and text urally classified in accordance with the Unified Soil Classification System (USCS) in general accordance with AS TM D 2488. Soil classifications are indicated on the logs of the exploratory borings in Appendix A.

In-Place Moisture and Density Tests
The mois ture content and dry density of relatively undisturbed samples obtained from the exploratory borings were evaluat ed in general accordance with AST M D 2937. The test results are presented on the logs of the exploratory borings in Appendix A.

Gradation Analysis
Gradation analysis tests were performed on selected representative soil samples in general accordance with ASTM D 422. The grain-size distribution curves are shown on Figures B-1 through B-6. These test results were utilized in evaluating the soil clas sifications in accordance with the USCS.

Direct Shear Test
Direct shear tests were performed on relatively undisturbed samples in general accordance with ASTM D 3080 to evaluate the shear strength characteri stics of the selected material s. T he samples were inundated during shearing to represent adverse field c onditions. The results are shown on Figures B-7 and B-10.

Soil Corrosivity Tests
Soil pH a nd electrical resi stivity t ests were per formed on representative s amples in general accordance w ith CT 643. The sulfa te and chloride contents of the selected samples were evaluated in general accordance with CT 417 and CT 422, respectively. The test results are presented on Figure B-11.

Coarse Fine Coarse Medium SILT CLAY 3" 2" ¾" ½" ⅜" 48 3 0 5 0
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 422
Passing
No. 200
(percent)
Cc

GRAVEL SAND FINES
Symbol Plasticity
Index
Plastic
Limit
Liquid
Limit
1½" 1"
Depth
(ft) D30 Cu USCSD60
Fine
Sample
Location
100
D10
16 200
MW-1 1.0-4.0 -- -- -- -- -- SC-- -- -- 44

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 90.0
100.0

0.00010.0010.010.1110100

PERCENT FINER BY WEIGHT

GRAIN SIZE IN MILLIMETERS
U.S. STANDARD SIEVE

NUMBERS HYDROMETER

GRADATION TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-1
110120001_SIEVE w No 8 MW-1 @ 1.0-4.0
Coarse Fine Coarse Medium SILT CLAY 3" 2" ¾" ½" ⅜" 48 3 0 5 0
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 422
Passing
No. 200
(percent)
Cc

GRAVEL SAND FINES
Symbol Plasticity
Index
Plastic
Limit
Liquid
Limit
1½" 1"
Depth
(ft) D30 Cu USCSD60
Fine
Sample
Location
100
D10
16 200
MW-1 15.0-16.5 -- -- -- -- -- SC-- -- -- 31

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 90.0
100.0

0.00010.0010.010.1110100

PERCENT FINER BY WEIGHT

GRAIN SIZE IN MILLIMETERS
U.S. STANDARD SIEVE

NUMBERS HYDROMETER

GRADATION TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-2
110120001_SIEVE w No 8 MW-1 @ 15.0-16.5
Coarse Fine Coarse Medium SILT CLAY 3" 2" ¾" ½" ⅜" 48 3 0 5 0
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 422
MW-1 20.0-21.5 -- -- -- -- -- CL-- -- -- 56
Sample
Location
100
D10
16 200
Passing
No. 200
(percent)
Cc

GRAVEL SAND FINES
Symbol Plasticity
Index
Plastic
Limit
Liquid
Limit
1½" 1"
Depth
(ft) D30 Cu USCSD60
Fine

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 90.0
100.0

0.00010.0010.010.1110100

PERCENT FINER BY WEIGHT

GRAIN SIZE IN MILLIMETERS
U.S. STANDARD SIEVE

NUMBERS HYDROMETER

GRADATION TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-3
110120001_SIEVE w No 8 MW-1 @ 20.0-21.5
Coarse Fine Coarse Medium SILT CLAY 3" 2" ¾" ½" ⅜" 48 3 0 5 0
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 422
MW-2 5.0-6.5 -- -- -- -- -- SC-- -- -- 38
Sample
Location
100
D10
16 200
Passing
No. 200
(percent)
Cc

GRAVEL SAND FINES
Symbol Plasticity
Index
Plastic
Limit
Liquid
Limit
1½" 1"
Depth
(ft) D30 Cu USCSD60
Fine

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 90.0
100.0

0.00010.0010.010.1110100

PERCENT FINER BY WEIGHT

GRAIN SIZE IN MILLIMETERS
U.S. STANDARD SIEVE

NUMBERS HYDROMETER

GRADATION TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-4
110120001_SIEVE w No 8 MW-2 @ 5.0-6.5
Coarse Fine Coarse Medium SILT CLAY 3" 2" ¾" ½" ⅜" 48 3 0 5 0
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 422
Passing
No. 200
(percent)
Cc

GRAVEL SAND FINES
Symbol Plasticity
Index
Plastic
Limit
Liquid
Limit
1½" 1"
Depth
(ft) D30 Cu USCSD60
Fine
Sample
Location
100
D10
16 200
MW-2 15.0-16.5 -- -- -- -- -- SC-- -- -- 33

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 90.0
100.0

0.00010.0010.010.1110100

PERCENT FINER BY WEIGHT

GRAIN SIZE IN MILLIMETERS
U.S. STANDARD SIEVE

NUMBERS HYDROMETER

GRADATION TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-5
110120001_SIEVE w No 8 MW-2 @ 15.0-16.5
Coarse Fine Coarse Medium SILT CLAY 3" 2" ¾" ½" ⅜" 48 3 0 5 0
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 422
Passing
No. 200
(percent)
Cc

GRAVEL SAND FINES
Symbol Plasticity
Index
Plastic
Limit
Liquid
Limit
1½" 1"
Depth
(ft) D30 Cu USCSD60
Fine
Sample
Location
100
D10
16 200
MW-2 30.0-31.5 -- -- -- -- -- SC-- -- -- 32

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 90.0
100.0

0.00010.0010.010.1110100

PERCENT FINER BY WEIGHT

GRAIN SIZE IN MILLIMETERS
U.S. STANDARD SIEVE

NUMBERS HYDROMETER

GRADATION TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-6
110120001_SIEVE w No 8 MW-2 @ 30.0-31.5
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 3080
Clayey SAND X Ultimate5.0-6.5MW-1
Cohesion
(psf)
Friction Angle
(degrees) Soil Type
SC26
28 0
SC
Description Symbol Sample
Location
0 Depth
(ft)
Shear
Strength

5.0-6.5Clayey SAND MW-1 Peak
0 1000
2000
3000
4000
0 1000 2000 3000 4000

SHEAR STRESS (PSF)

NORMAL STRESS (PSF)
FIGURE B-7

DIRECT SHEAR TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
110120001_DIRECT SHEAR MW-1 @ 5.0-6.5

10.0-11.5Clayey SAND MW-1 Peak
Cohesion
(psf)
Friction Angle
(degrees) Soil Type
SC20
20 340
SC
Description Symbol Sample
Location
450
Depth
(ft)
Shear
Strength
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 3080
Clayey SAND X U
ltimate10.0-11.5MW-1
0 1000
2000
3000
4000
0 1000 2000 3000 4000

SHEAR STRESS (PSF)

NORMAL STRESS (PSF)
FIGURE B-8

DIRECT SHEAR TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
110120001_DIRECT SHEAR MW-1 @ 10.0-11.5

10.0-11.5Clayey SAND MW-2 Peak
Cohesion
(psf)
Friction Angle
(degrees) Soil Type
SC27
29 170
SC
Description Symbol Sample
Location
250
Depth
(ft)
Shear
Strength
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 3080
Clayey SAND X U
ltimate10.0-11.5MW-2
0 1000
2000
3000
4000
0 1000 2000 3000 4000

SHEAR STRESS (PSF)

NORMAL STRESS (PSF)
FIGURE B-9

DIRECT SHEAR TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
110120001_DIRECT SHEAR MW-2 @ 10.0-11.5

25.0-26.5Clayey SAND MW-2 Peak
Cohesion
(psf)
Friction Angle
(degrees) Soil Type
SC30
33 70
SC
Description Symbol Sample
Location
100
Depth
(ft)
Shear
Strength
PERFORMED IN GENERAL ACCORDANCE WITH ASTM D 3080
Clayey SAND X U
ltimate25.0-26.5MW-2
0 1000
2000
3000
4000
0 1000 2000 3000 4000

SHEAR STRESS (PSF)

NORMAL STRESS (PSF)
FIGURE B-10

DIRECT SHEAR TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
110120001_DIRECT SHEAR MW-2 @ 25.0-26.5
1 PERFORMED IN GENERAL ACCORDANCE WITH CALIFORNIA TEST METHOD 643 2 PERFORMED IN GENERAL ACCORDANCE WITH CALIFORNIA TEST METHOD 417 3 PERFORMED IN GENERAL ACCORDANCE WITH CALIFORNIA TEST METHOD 422 (ppm) (%)
1,040
MW-1 1.0-4.0
540MW-2

CHLORIDE
CONTENT 3
(ppm)
pH 1SAMPLE
DEPTH (ft)
SAMPLE

LOCATION
RESISTIVITY 1
(ohm-cm)

7.2 100
90 340 500 0.050

0.104
SULFATE CONTENT 2

1.0-4.0 7.1

CORROSIVITY TEST RESULTS

POINTSETTIA LANE SEWER REPLACEMENT PROJECT

CARLSBAD, CALIFORNIA
110120001 | 9/25
FIGURE B-11
110120001_CORROSIVITYx2

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPENDIX C
Groundwater Sampli ng Field D ata Sheet

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPENDIX D
EWA Local Discharge Limits and TTO Limits

-12-

Table 1

LOCAL DISCHARGE LIMITS
Daily Maximum Limits
Constituent Limits for Users in
MWRF Service Area
Limits for Users in
EWPCF Service Area
Arsenic, Total 1.5 mg/L 1.5 mg/L
Boron, Total 7.4 mg/L -
Cadmium, Total 0.77 mg/L 0.77 mg/L
Chromium, Total 3.5 mg/L 3.5 mg/L
Copper, Total 11 mg/L 11 mg/L
Iron, Total 67 mg/L -
Lead, Total 5.1 mg/L 5.1 mg/L
Manganese, Total 1.7 mg/ L -
Mercury, Total 0.27 mg/L 0.27 mg/L
Molybdenum, Total 4.1 mg/L 4.1 mg/L
Nickel, Total 15 mg/L 15 mg/L
Selenium, Total 2.5 mg/L 2.5 mg/L
Silver, Total 4.2 mg/L 4.2 mg/L
Zinc, Total 29 mg/L 29 mg/L
Oil and Grease 400 mg/L 400 mg/L
Total Toxic Organics (TTO) 2.00 mg/L 2.00 mg/L
Biochemical Oxygen Demand (BOD) 250 mg/L* 500 lbs/day
Total Suspended Solids (TSS) 250 mg/L 500 lbs/day
Instantaneous Limits
Constituent Limit Limit
pH 5.5 – 12.0 units 5.5 – 12.0 units
Temperature 140° Fahrenheit 140° Fahrenheit
*Permittees in the MWRF Service Area as of February 22, 2012 are grandfathered in at their existing pollutant loading for BOD.

2.13 BEST MANAGEMENT PRACTICES
EWA may develop BMPs by ordinance or in individual Wastewater Discharge Permits to implement Local Limits and the requirements of Section 2.1.

TToottaall TTooxxiicc OOrrggaanniiccss ((TTTTOO)) LLiisstt

Acenaphthene 2,4-dimethyl phenol
Acenaphthylene Dimethyl phthalate
Acrolein di-n-butyl phthalate
Acrylonitrile di-n-octyl phthalate
Aldrin 4,6-dinitro-o-cresol
Anthracene 2,4-dinitrophenol
Benzene 2,4-dinitrotoluene
Benzidine 2,6-dinitrotoluene
Benzo (a) anthracene 1,2-diphenylhydrazine
Benzo (b) fluoroanthene a-endosulfan (alpha)
Benzo (k) fluoroanthene b-endosulfan (beta)
Benzo (g,h,i) perylene Endosulfan sulfate
Benzo (a) pyrene Endrin
a-BHC (alpha) Endrin aldehyde
b-BHC (beta) Ethylbenzene
d-BHC (delta) Fluoranthene
g-BHC (gamma) Fluorene
Bis (2-chloroethyl) ether Heptachlor
Bis (2-chloroethoxy) methane Heptachlor epoxide
Bis (2-chloroisopropyl) ether Hexachlorobenzene
Bis (2-ethylhexyl) phthalate Hexacholorobutadiene
Bromoform Hexachlorocyclopentadiene
Bromomethane Hexachloroethane
4-bromophenyl phenyl ether Indeno (1,2,3-c,d) pyrene
Butyl benzyl phthalate Isophorone
Carbon tetrachloride Methylene chloride
Chlordane Naphthalene
4-chloro-3methylphenol Nitrobenzene
Chlorobenzene 2-nitrophenol
Chlorodibromomethane 4-nitrophenol
Chloroethane n-nitrosodimethylamine
2-chloroethyl vinyl ether n-nitrosodi-n-propylamine
Chloroform n-nitrosodiphenylamine
Chloromethane PCB-1016
2-chloronaphthalene PCB-1221
2-chlorophenol PCB-1232
4-chlorophenyl phenyl ether PCB-1242
Chrysene PCB-1248
4,4’-DDD PCB-1254
4,4’-DDE PCB-1260
4,4’DDT Pentachlorophenol
Dibenzo (a,h) anthracene Phenanthrene
1,2-dichlorobenzene Phenol
1,3-dichlorobenzene Pyrene
1,4-dichlorobenzene 2,3,7,8-tetrachlorodibenzo-p-dioxin 3,3’-dichlorobenzidine 1,1,2,2-tetrachloroethane
Dichlorobromomethane Tetrachloroethylene
1,1-dichloroethane Toluene
1,2-dichloroethane Toxaphene
1,1-dichloroethylene 1,2,4-trichlorobenzene
1,2-trans-dichloroethylene 1,1,1-trichloroethane
2,4-dichlorophenol 1,1,2-trichloroethane
1,2-dichloropropane Trichloroethylene
1,3-dichloropropylene 2,4,6-trichlorophenol
Dieldrin Vinyl chloride
Diethyl phthalate

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025

APPENDIX E
Laborator y Analytical Reports

ANALYTICAL REPORT

PREPARED FOR
Attn: Accounts Payable
Ninyo & Moore
5710 Ruffin Road
San Diego, California 92123
Generated 8/26/2025 10:05:12 AM

JOB DESCRIPTION
Poinsettia Lane Sewer Replacement

JOB NUMBER
570-242423-1
See page two for job notes and contact information.

Tustin CA 92780
2841 Dow Avenue, Suite 100
Eurofins Calscience

Page 1 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Eurofins Calscience
Eurofins Calscience is a laboratory within Eurofins Environment Testing Southwest, LLC, a company within Eurofins Environment Testing Group of Companies Job Notes
This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Calscience Project Manager.

Authorization
Generated
8/26/2025 10:05:12 AM
Authorized for release by
Virendra Patel, Project Manager I
[email protected]
(714)895-5494

Page 2 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Table of Contents
Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Laboratory Job ID: 570-242423-1

Page 3 of 60 ends

Eurofins Calscience
8/26/2025
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Definitions/Glossary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Qualifiers

GC/MS VOA
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

Qualifier
GC/MS Semi VOA
Qualifier Description
*- LCS and/or LCSD is outside acceptance limits, low biased.

Qualifier
*1 LCS/LCSD RPD exceeds control limits.

F1 MS and/or MSD recovery exceeds control limits.

F2 MS/MSD RPD exceeds control limits
J Result is less than the RL
but greater than or equal to the MDL and the concentration is an approximate value.

GC Semi VOA
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

Qualifier
Metals
Qualifier Description
4 MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not applicable.

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

J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

General Chemistry
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

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)
Eurofins Calscience

Page 4 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Definitions/Glossary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Glossary (Continued)
These commonly used abbreviations may or may not be present in this report.

RL Reporting Limit or Requested Limit (Radiochemistry)
Abbreviation
RPD Relative Percent Difference, a measure of the relative difference between two points TEF T
oxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Calscience

Page 5 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Job Narrative
570-242423-1
The analytical test results presented in this report meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page, unless otherwise noted. Data qualifiers and/or narrative comments are included to explain any exceptions, if applicable. Regulated compliance samples (e.g. SDWA, NPDES) must comply with associated agency requirements/permits.
· Matrix-specific batch QC (e.g., MS, MSD, SD) may not be reported when insufficient sample volume is available or when site- specific QC samples are not submitted. In such cases, a Laboratory Control Sample Duplicate (LCSD) may be analyzed to provide precision data for the batch.
· For samples analyzed using surrogate and/or isotope dilution analytes, any recoveries falling outside of established acceptance criteria are re-prepared and/or re-analyzed to confirm results, unless the deviation is due to sample dilution or otherwise explained in the case narrative.

Receipt
The samples were received on 8/12/2025 5:00 PM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperatures of the 2 coolers at receipt time were 2.6°C and 4.1°C.

GC/MS VOA
Method 624.1_LL: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 570-610861. The laboratory control sample (LCS) was performed in duplicate (LCSD) to provide precision data for this batch.

Method 624.1_LL: The initial calibration verification (ICV) result for batch 570-610861 was above the upper control limit. The affected analytes: Carbon disulfide and Naphthalene. Sample results were non-detects, and have been reported as qualified data.

Method 624.1_LL: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 570-613555. The laboratory control sample (LCS) was performed in duplicate (LCSD) 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.

GC/MS Semi VOA
Method 625.1_SIM: The continuing calibration verification (CCV) associated with batch 570-615762 recovered above the upper control limit for 4,6-Dinitro-2-methylphenol. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The associated sample is:(CCVIS 570-615762/2).

Method 625.1_SIM: The method blank for preparation batch 570-611589 and analytical batch 570-615762 contained Butyl benzyl phthalate above the method detection limit. This target analyte concentration was less than the reporting limit (RL) in the method blank; therefore, re-extraction and/or re-analysis of samples was not performed.

Method 625.1_SIM: The laboratory control sample and/or the laboratory control sample duplicate (LCS/LCSD) for preparation batch 570-611589 and analytical batch 570-615762 recovered outside control limits for the following analyte(s): Benzidine.

Benzidine has been identified as a poor performing analyte when analyzed using this method; therefore, re-extraction/re-analysis was not performed.

Method 625.1_SIM: The RPD of the laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) for preparation batch 570-611589 and analytical batch 570-615762 recovered outside control limits for the following analytes:

Benzidine.

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

PCBs
Method 608.3_PCB_LL: The laboratory control sample (LCS) was performed in duplicate (LCSD) to provide precision data for this batch.

Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with preparation batch 570-610581.

Case Narrative
Client: Ninyo & Moore Job ID: 570-242423-1
Project: Poinsettia Lane Sewer Replacement
Eurofins Calscience
Job ID: 570-242423-1 Eurofins Calscience

Page 6 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Method 608.3 Pest LL
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.

Pesticides
Method 608.3_Pest_LL: The laboratory control sample (LCS) was performed in duplicate (LCSD) to provide precision data for this batch.

Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with preparation batch 570-610581.

Method 608.3 Pest LL
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.

Metals
Method 200.7 - Total Recoverable: The following sample was diluted due to the nature of the sample matrix: MW-1 (570-242423-1). Elevated reporting limits (RLs) are provided.

Method 200.7 - Total Recoverable: The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 570-610996 and analytical batch 570-611187 were outside control limits for one or more analytes. See QC Sample Results for detail. Sample matrix interference and/or non-homogeneity are suspected because the associated laboratory control sample (LCS) recovery is within acceptance limits.

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

General Chemistry
Method 1664B: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with preparation batch 570-610997.

The laboratory control sample (LCS) was performed in duplicate (LCSD) 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.

Case Narrative
Client: Ninyo & Moore Job ID: 570-242423-1
Project: Poinsettia Lane Sewer Replacement
Eurofins Calscience
Job ID: 570-242423-1 (Continued) Eurofins Calscience

Page 7 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Detection Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Client Sample ID: MW-1 Lab Sample ID: 570-242423-1
Acetone
RL
20 ug/L
MDL

4.3 Analyte Result Qualifier Unit Dil Fac
D Method Prep Type
Total/NA1J

5.2 624.1
Carbon disulfide - RA 1.0 ug/L 0.33 Total/NA10.46 J 624.1 1,2-Diphenylhydrazine(as Azobenzene) 0.19 ug/L0.023 Total/NA10.067 J 625.1 SIM
Diethyl phthalate 1.9 ug/L 0.20 T
otal/NA112 625.1 SIM
Di-n-butyl phthalate 1.9 ug/L 0.69 Total/NA10.70 J 625.1 SIM Barium 0.0200 mg/L0.00547 Total
Recoverable

20.0556 200.7 Rev 4.4
Copper 0.100 mg/L0.00500 Total
Recoverable

20.00760 J 200.7 Rev 4.4
Iron 1.00 mg/L0.680 Total
Recoverable

21.75 F1 200.7 Rev 4.4
Manganese 0.100 mg/L0.0106 Total
Recoverable

26.90 200.7 Rev 4.4
Nickel 0.100 mg/L0.00480 Total
Recoverable

20.0330 J 200.7 Rev 4.4
Zinc 0.500 mg/L0.0134 Total
Recoverable

23.29 200.7 Rev 4.4
HEM: Oil and Grease 0.955 mg/L0.487 Total/NA11.53 1664B Total Dissolved Solids 100 mg/L 83.5 Total/NA18790 SM 2540C Total Suspended Solids 2.00 mg/L 1.60 Total/NA1100 SM 2540D Biochemical Oxygen Demand 2.00 mg/L 1.00 Total/NA11.56 J SM 5210B Client Sample ID: MW-2 Lab Sample ID: 570-242423-2
Barium
RL

0.0100 mg/L
MDL

0.00273
Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total
Recoverable

10.0235 200.7 Rev 4.4
Copper 0.0500 mg/L0.00250 Total
Recoverable

10.00770 J 200.7 Rev 4.4
Iron 0.500 mg/L0.340 Total
Recoverable

10.452 J 200.7 Rev 4.4
Manganese 0.0500 mg/L0.00530 Total
Recoverable

10.00550 J 200.7 Rev 4.4
Molybdenum 0.0500 mg/L0.00444 Total
Recoverable

10.00830 J 200.7 Rev 4.4
Nickel 0.0500 mg/L0.00240 Total
Recoverable

10.00510 J 200.7 Rev 4.4
Selenium 0.100 mg/L0.00870 Total
Recoverable

10.00970 J 200.7 Rev 4.4
Zinc 0.250 mg/L0.00670 Total
Recoverable

10.0124 J 200.7 Rev 4.4
HEM: Oil and Grease 0.955 mg/L0.487 Total/NA10.860 J 1664B Total Dissolved Solids 50.0 mg/L 41.8 Total/NA13290 SM 2540C Total Suspended Solids 1.00 mg/L0.800 Total/NA135.3 SM 2540D Eurofins Calscience
This Detection Summary does not include radiochemical test results.

Page 8 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 624.1 - V
olatile Organic Compounds (GC/MS)
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.50 0.14 ug/L 08/13/25 13:30 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
1,1,1,2-Tetrachloroethane

0.50 0.19 ug/L 08/13/25 13:30 1ND1,1,1-Trichloroethane

0.50 0.15 ug/L 08/13/25 13:30 1ND1,1,2,2-Tetrachloroethane

2.0 1.1 ug/L 08/13/25 13:30 1ND1,1,2-Trichloro-1,2,2-trifluoroethane

0.50 0.20 ug/L 08/13/25 13:30 1ND1,1,2-Trichloroethane

0.50 0.23 ug/L 08/13/25 13:30 1ND1,1-Dichloroethane

0.50 0.19 ug/L 08/13/25 13:30 1ND1,1-Dichloroethene

0.50 0.19 ug/L 08/13/25 13:30 1ND1,1-Dichloropropene

1.0 0.19 ug/L 08/13/25 13:30 1ND1,2,3-Trichlorobenzene

1.0 0.27 ug/L 08/13/25 13:30 1ND1,2,3-Trichloropropane

1.0 0.18 ug/L 08/13/25 13:30 1ND1,2,4-Trichlorobenzene

0.50 0.22 ug/L 08/13/25 13:30 1ND1,2,4-Trimethylbenzene

1.0 0.47 ug/L 08/13/25 13:30 1ND1,2-Dibromo-3-Chloropropane

0.50 0.19 ug/L 08/13/25 13:30 1ND1,2-Dibromoethane

0.50 0.16 ug/L 08/13/25 13:30 1ND1,2-Dichlorobenzene

0.50 0.17 ug/L 08/13/25 13:30 1ND1,2-Dichloroethane

0.50 0.17 ug/L 08/13/25 13:30 1ND1,2-Dichloropropane

0.50 0.18 ug/L 08/13/25 13:30 1ND1,3,5-Trimethylbenzene

0.50 0.13 ug/L 08/13/25 13:30 1ND1,3-Dichlorobenzene

0.50 0.20 ug/L 08/13/25 13:30 1ND1,3-Dichloropropane

0.50 0.12 ug/L 08/13/25 13:30 1ND1,4-Dichlorobenzene
10 3.4 ug/L 08/13/25 13:30 1ND2,2-Dichloro-1,1,1-trifluoroethane

1.0 0.23 ug/L 08/13/25 13:30 1ND2,2-Dichloropropane

5.0 2.3 ug/L 08/13/25 13:30 1ND2-Butanone (MEK)

2.0 0.92 ug/L 08/13/25 13:30 1ND2-Chloroethyl vinyl ether

0.50 0.12 ug/L 08/13/25 13:30 1ND2-Chlorotoluene

5.0 1.5 ug/L 08/13/25 13:30 1ND2-Hexanone

0.50 0.13 ug/L 08/13/25 13:30 1ND4-Chlorotoluene

5.0 1.2 ug/L 08/13/25 13:30 1ND4-Methyl-2-pentanone (MIBK) 20 4.3 ug/L 08/13/25 13:30 15.2 JAcetone

5.0 1.8 ug/L 08/13/25 13:30 1NDAcrolein

2.0 0.98 ug/L 08/13/25 13:30 1NDAcrylonitrile

0.50 0.10 ug/L 08/13/25 13:30 1NDBenzene

0.50 0.16 ug/L 08/13/25 13:30 1NDBromobenzene

0.50 0.28 ug/L 08/13/25 13:30 1NDBromochloromethane

0.50 0.13 ug/L 08/13/25 13:30 1NDBromodichloromethane

1.0 0.25 ug/L 08/13/25 13:30 1NDBromoform

0.50 0.38 ug/L 08/13/25 13:30 1NDBromomethane

0.50 0.24 ug/L 08/13/25 13:30 1NDcis-1,2-Dichloroethene

0.50 0.14 ug/L 08/13/25 13:30 1NDcis-1,3-Dichloropropene

0.50 0.20 ug/L 08/13/25 13:30 1NDCarbon tetrachloride

0.50 0.14 ug/L 08/13/25 13:30 1NDChlorobenzene

1.0 0.36 ug/L 08/13/25 13:30 1NDChloroethane

0.50 0.25 ug/L 08/13/25 13:30 1NDChloroform

0.50 0.23 ug/L 08/13/25 13:30 1NDChloromethane

0.50 0.13 ug/L 08/13/25 13:30 1NDDibromochloromethane

0.50 0.25 ug/L 08/13/25 13:30 1NDDibromomethane

1.0 0.35 ug/L 08/13/25 13:30 1NDDichlorodifluoromethane

0.50 0.31 ug/L 08/13/25 13:30 1NDDi-isopropyl ether (DIPE) Eurofins Calscience

Page 9 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 624.1 - V
olatile Organic Compounds (GC/MS) (Continued)
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 100 39 ug/L 08/13/25 13:30 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Ethanol

0.50 0.090 ug/L 08/13/25 13:30 1NDEthylbenzene

0.50 0.25 ug/L 08/13/25 13:30 1NDEthyl-t-butyl ether (ETBE)

0.50 0.22 ug/L 08/13/25 13:30 1NDHexachloro-1,3-butadiene 250 16 ug/L 08/13/25 13:30 1NDIsopropanol

0.50 0.087 ug/L 08/13/25 13:30 1NDIsopropylbenzene

2.0 0.63 ug/L 08/13/25 13:30 1NDMethylene Chloride

0.50 0.26 ug/L 08/13/25 13:30 1NDMethyl-t-Butyl Ether (MTBE)

1.0 0.17 ug/L 08/13/25 13:30 1NDNaphthalene

1.0 0.26 ug/L 08/13/25 13:30 1NDn-Butylbenzene

0.50 0.095 ug/L 08/13/25 13:30 1NDN-Propylbenzene

0.50 0.12 ug/L 08/13/25 13:30 1NDo-Xylene

1.0 0.22 ug/L 08/13/25 13:30 1NDm,p-Xylene

0.50 0.18 ug/L 08/13/25 13:30 1NDp-Isopropyltoluene

0.50 0.083 ug/L 08/13/25 13:30 1NDsec-Butylbenzene

0.50 0.17 ug/L 08/13/25 13:30 1NDStyrene

0.50 0.19 ug/L 08/13/25 13:30 1NDtrans-1,2-Dichloroethene

0.50 0.16 ug/L 08/13/25 13:30 1NDtrans-1,3-Dichloropropene

0.50 0.15 ug/L 08/13/25 13:30 1NDTert-amyl-methyl ether (TAME) 10 4.4 ug/L 08/13/25 13:30 1NDtert-Butyl alcohol (TBA)

0.50 0.13 ug/L 08/13/25 13:30 1NDtert-Butylbenzene

0.50 0.14 ug/L 08/13/25 13:30 1NDTetrachloroethene
10 3.4 ug/L 08/13/25 13:30 1NDTetrahydrofuran

0.50 0.11 ug/L 08/13/25 13:30 1NDToluene

0.50 0.11 ug/L 08/13/25 13:30 1NDTrichloroethene

0.50 0.19 ug/L 08/13/25 13:30 1NDTrichlorofluoromethane

4.0 0.98 ug/L 08/13/25 13:30 1NDVinyl acetate

0.50 0.16 ug/L 08/13/25 13:30 1NDVinyl chloride
1,2-Dichloroethane-d4 (Surr) 124 60 - 140 08/13/25 13:30 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr) 97 08/13/25 13:30 160 - 140 Dibromofluoromethane (Surr) 105 08/13/25 13:30 160 - 140 Toluene-d8 (Surr) 98 08/13/25 13:30 160 - 140
Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.50 0.14 ug/L 08/13/25 13:53 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
1,1,1,2-Tetrachloroethane

0.50 0.19 ug/L 08/13/25 13:53 1ND1,1,1-Trichloroethane

0.50 0.15 ug/L 08/13/25 13:53 1ND1,1,2,2-Tetrachloroethane

2.0 1.1 ug/L 08/13/25 13:53 1ND1,1,2-Trichloro-1,2,2-trifluoroethane

0.50 0.20 ug/L 08/13/25 13:53 1ND1,1,2-Trichloroethane

0.50 0.23 ug/L 08/13/25 13:53 1ND1,1-Dichloroethane

0.50 0.19 ug/L 08/13/25 13:53 1ND1,1-Dichloroethene

0.50 0.19 ug/L 08/13/25 13:53 1ND1,1-Dichloropropene

1.0 0.19 ug/L 08/13/25 13:53 1ND1,2,3-Trichlorobenzene

1.0 0.27 ug/L 08/13/25 13:53 1ND1,2,3-Trichloropropane

1.0 0.18 ug/L 08/13/25 13:53 1ND1,2,4-Trichlorobenzene
Eurofins Calscience

Page 10 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 624.1 - V
olatile Organic Compounds (GC/MS) (Continued)
Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.50 0.22 ug/L 08/13/25 13:53 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
1,2,4-Trimethylbenzene

1.0 0.47 ug/L 08/13/25 13:53 1ND1,2-Dibromo-3-Chloropropane

0.50 0.19 ug/L 08/13/25 13:53 1ND1,2-Dibromoethane

0.50 0.16 ug/L 08/13/25 13:53 1ND1,2-Dichlorobenzene

0.50 0.17 ug/L 08/13/25 13:53 1ND1,2-Dichloroethane

0.50 0.17 ug/L 08/13/25 13:53 1ND1,2-Dichloropropane

0.50 0.18 ug/L 08/13/25 13:53 1ND1,3,5-Trimethylbenzene

0.50 0.13 ug/L 08/13/25 13:53 1ND1,3-Dichlorobenzene

0.50 0.20 ug/L 08/13/25 13:53 1ND1,3-Dichloropropane

0.50 0.12 ug/L 08/13/25 13:53 1ND1,4-Dichlorobenzene
10 3.4 ug/L 08/13/25 13:53 1ND2,2-Dichloro-1,1,1-trifluoroethane

1.0 0.23 ug/L 08/13/25 13:53 1ND2,2-Dichloropropane

5.0 2.3 ug/L 08/13/25 13:53 1ND2-Butanone (MEK)

2.0 0.92 ug/L 08/13/25 13:53 1ND2-Chloroethyl vinyl ether

0.50 0.12 ug/L 08/13/25 13:53 1ND2-Chlorotoluene

5.0 1.5 ug/L 08/13/25 13:53 1ND2-Hexanone

0.50 0.13 ug/L 08/13/25 13:53 1ND4-Chlorotoluene

5.0 1.2 ug/L 08/13/25 13:53 1ND4-Methyl-2-pentanone (MIBK) 20 4.3 ug/L 08/13/25 13:53 1NDAcetone

5.0 1.8 ug/L 08/13/25 13:53 1NDAcrolein

2.0 0.98 ug/L 08/13/25 13:53 1NDAcrylonitrile

0.50 0.10 ug/L 08/13/25 13:53 1NDBenzene

0.50 0.16 ug/L 08/13/25 13:53 1NDBromobenzene

0.50 0.28 ug/L 08/13/25 13:53 1NDBromochloromethane

0.50 0.13 ug/L 08/13/25 13:53 1NDBromodichloromethane

1.0 0.25 ug/L 08/13/25 13:53 1NDBromoform

0.50 0.38 ug/L 08/13/25 13:53 1NDBromomethane

0.50 0.24 ug/L 08/13/25 13:53 1NDcis-1,2-Dichloroethene

0.50 0.14 ug/L 08/13/25 13:53 1NDcis-1,3-Dichloropropene

1.0 0.33 ug/L 08/13/25 13:53 1NDCarbon disulfide

0.50 0.20 ug/L 08/13/25 13:53 1NDCarbon tetrachloride

0.50 0.14 ug/L 08/13/25 13:53 1NDChlorobenzene

1.0 0.36 ug/L 08/13/25 13:53 1NDChloroethane

0.50 0.25 ug/L 08/13/25 13:53 1NDChloroform

0.50 0.23 ug/L 08/13/25 13:53 1NDChloromethane

0.50 0.13 ug/L 08/13/25 13:53 1NDDibromochloromethane

0.50 0.25 ug/L 08/13/25 13:53 1NDDibromomethane

1.0 0.35 ug/L 08/13/25 13:53 1NDDichlorodifluoromethane

0.50 0.31 ug/L 08/13/25 13:53 1NDDi-isopropyl ether (DIPE) 100 39 ug/L 08/13/25 13:53 1NDEthanol

0.50 0.090 ug/L 08/13/25 13:53 1NDEthylbenzene

0.50 0.25 ug/L 08/13/25 13:53 1NDEthyl-t-butyl ether (ETBE)

0.50 0.22 ug/L 08/13/25 13:53 1NDHexachloro-1,3-butadiene 250 16 ug/L 08/13/25 13:53 1NDIsopropanol

0.50 0.087 ug/L 08/13/25 13:53 1NDIsopropylbenzene

2.0 0.63 ug/L 08/13/25 13:53 1NDMethylene Chloride

0.50 0.26 ug/L 08/13/25 13:53 1NDMethyl-t-Butyl Ether (MTBE)

1.0 0.17 ug/L 08/13/25 13:53 1NDNaphthalene

1.0 0.26 ug/L 08/13/25 13:53 1NDn-Butylbenzene
Eurofins Calscience

Page 11 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 624.1 - V
olatile Organic Compounds (GC/MS) (Continued)
Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.50 0.095 ug/L 08/13/25 13:53 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
N-Propylbenzene

0.50 0.12 ug/L 08/13/25 13:53 1NDo-Xylene

1.0 0.22 ug/L 08/13/25 13:53 1NDm,p-Xylene

0.50 0.18 ug/L 08/13/25 13:53 1NDp-Isopropyltoluene

0.50 0.083 ug/L 08/13/25 13:53 1NDsec-Butylbenzene

0.50 0.17 ug/L 08/13/25 13:53 1NDStyrene

0.50 0.19 ug/L 08/13/25 13:53 1NDtrans-1,2-Dichloroethene

0.50 0.16 ug/L 08/13/25 13:53 1NDtrans-1,3-Dichloropropene

0.50 0.15 ug/L 08/13/25 13:53 1NDTert-amyl-methyl ether (TAME) 10 4.4 ug/L 08/13/25 13:53 1NDtert-Butyl alcohol (TBA)

0.50 0.13 ug/L 08/13/25 13:53 1NDtert-Butylbenzene

0.50 0.14 ug/L 08/13/25 13:53 1NDTetrachloroethene
10 3.4 ug/L 08/13/25 13:53 1NDTetrahydrofuran

0.50 0.11 ug/L 08/13/25 13:53 1NDToluene

0.50 0.11 ug/L 08/13/25 13:53 1NDTrichloroethene

0.50 0.19 ug/L 08/13/25 13:53 1NDTrichlorofluoromethane

4.0 0.98 ug/L 08/13/25 13:53 1NDVinyl acetate

0.50 0.16 ug/L 08/13/25 13:53 1NDVinyl chloride
1,2-Dichloroethane-d4 (Surr) 127 60 - 140 08/13/25 13:53 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr) 94 08/13/25 13:53 160 - 140 Dibromofluoromethane (Surr) 104 08/13/25 13:53 160 - 140 Toluene-d8 (Surr) 98 08/13/25 13:53 160 - 140
Eurofins Calscience

Page 12 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EPA 624.1 - V
olatile Organic Compounds (GC/MS) - RA
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL

0.46 J 1.0 0.33 ug/L 08/19/25 16:53 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Carbon disulfide
1,2-Dichloroethane-d4 (Surr) 104 60 - 140 08/19/25 16:53 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr) 92 08/19/25 16:53 160 - 140 Dibromofluoromethane (Surr) 102 08/19/25 16:53 160 - 140 Toluene-d8 (Surr) 98 08/19/25 16:53 160 - 140
Eurofins Calscience

Page 13 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: W
aterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.19 0.080 ug/L 08/14/25 11:43 08/23/25 11:21 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
1,2,4-Trichlorobenzene

0.19 0.023 ug/L 08/14/25 11:43 08/23/25 11:21 10.067 J1,2-Diphenylhydrazine(as Azobenzene)

0.97 0.057 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2,4,6-Trichlorophenol

0.97 0.045 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2,4-Dichlorophenol

0.19 0.062 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2,4-Dimethylphenol

4.8 2.5 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2,4-Dinitrophenol

0.19 0.12 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2,4-Dinitrotoluene

0.19 0.065 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2,6-Dinitrotoluene

0.19 0.064 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2-Chloronaphthalene

0.19 0.056 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2-Chlorophenol

4.8 1.4 ug/L 08/14/25 11:43 08/23/25 11:21 1ND2-Nitrophenol

4.8 0.53 ug/L 08/14/25 11:43 08/23/25 11:21 1ND3,3'-Dichlorobenzidine

4.8 1.7 ug/L 08/14/25 11:43 08/23/25 11:21 1ND4,6-Dinitro-2-methylphenol

0.19 0.052 ug/L 08/14/25 11:43 08/23/25 11:21 1ND4-Bromophenyl phenyl ether

0.97 0.053 ug/L 08/14/25 11:43 08/23/25 11:21 1ND4-Chloro-3-methylphenol

0.19 0.059 ug/L 08/14/25 11:43 08/23/25 11:21 1ND4-Chlorophenyl phenyl ether

4.8 0.76 ug/L 08/14/25 11:43 08/23/25 11:21 1ND4-Nitrophenol

0.19 0.063 ug/L 08/14/25 11:43 08/23/25 11:21 1NDAcenaphthene

0.19 0.063 ug/L 08/14/25 11:43 08/23/25 11:21 1NDAcenaphthylene

0.19 0.025 ug/L 08/14/25 11:43 08/23/25 11:21 1NDAnthracene

4.8 0.91 ug/L 08/14/25 11:43 08/23/25 11:21 1ND *- *1Benzidine

0.19 0.057 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBenzo[a]anthracene

0.19 0.028 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBenzo[a]pyrene

0.19 0.066 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBenzo[b]fluoranthene

0.19 0.058 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBenzo[g,h,i]perylene

0.19 0.067 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBenzo[k]fluoranthene

0.19 0.068 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBis(2-chloroethoxy)methane

0.19 0.067 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBis(2-chloroethyl)ether

0.19 0.084 ug/L 08/14/25 11:43 08/23/25 11:21 1NDbis (2-Chloroisopropyl) ether

4.8 1.0 ug/L 08/14/25 11:43 08/23/25 11:21 1NDBis(2-ethylhexyl) phthalate

0.97 0.34 ug/L 08/14/25 11:43 08/23/25 11:21 1NDButyl benzyl phthalate

0.19 0.054 ug/L 08/14/25 11:43 08/23/25 11:21 1NDChrysene

0.19 0.14 ug/L 08/14/25 11:43 08/23/25 11:21 1NDDibenz(a,h)anthracene

1.9 0.20 ug/L 08/14/25 11:43 08/23/25 11:21 112Diethyl phthalate

1.9 1.6 ug/L 08/14/25 11:43 08/23/25 11:21 1NDDimethyl phthalate

1.9 0.69 ug/L 08/14/25 11:43 08/23/25 11:21 10.70 JDi-n-butyl phthalate

2.9 0.073 ug/L 08/14/25 11:43 08/23/25 11:21 1NDDi-n-octyl phthalate

0.19 0.054 ug/L 08/14/25 11:43 08/23/25 11:21 1NDFluoranthene

0.19 0.058 ug/L 08/14/25 11:43 08/23/25 11:21 1NDFluorene

0.19 0.11 ug/L 08/14/25 11:43 08/23/25 11:21 1NDHexachloro-1,3-butadiene

0.19 0.067 ug/L 08/14/25 11:43 08/23/25 11:21 1NDHexachlorobenzene

0.19 0.10 ug/L 08/14/25 11:43 08/23/25 11:21 1NDHexachlorocyclopentadiene

0.19 0.094 ug/L 08/14/25 11:43 08/23/25 11:21 1NDHexachloroethane

0.19 0.13 ug/L 08/14/25 11:43 08/23/25 11:21 1NDIndeno[1,2,3-cd]pyrene

0.19 0.069 ug/L 08/14/25 11:43 08/23/25 11:21 1NDIsophorone

0.19 0.054 ug/L 08/14/25 11:43 08/23/25 11:21 1NDNaphthalene

0.19 0.082 ug/L 08/14/25 11:43 08/23/25 11:21 1NDNitrobenzene

0.19 0.088 ug/L 08/14/25 11:43 08/23/25 11:21 1NDN-Nitrosodimethylamine

0.19 0.058 ug/L 08/14/25 11:43 08/23/25 11:21 1NDN-Nitrosodi-n-propylamine Eurofins Calscience

Page 14 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) (Continued) Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: W
aterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.19 0.030 ug/L 08/14/25 11:43 08/23/25 11:21 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
N-Nitrosodiphenylamine

0.97 0.093 ug/L 08/14/25 11:43 08/23/25 11:21 1NDPentachlorophenol

0.19 0.066 ug/L 08/14/25 11:43 08/23/25 11:21 1NDPhenanthrene

0.97 0.032 ug/L 08/14/25 11:43 08/23/25 11:21 1NDPhenol

0.19 0.065 ug/L 08/14/25 11:43 08/23/25 11:21 1NDPyrene 2,4,6-Tribromophenol (Surr) 98 28 - 127 08/14/25 11:43 08/23/25 11:21 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 2-Fluorobiphenyl (Surr) 79 08/14/25 11:43 08/23/25 11:21 131 - 120 2-Fluorophenol (Surr) 56 08/14/25 11:43 08/23/25 11:21 117 - 120 Nitrobenzene-d5 (Surr) 93 08/14/25 11:43 08/23/25 11:21 127 - 120 Phenol-d6 (Surr) 37 08/14/25 11:43 08/23/25 11:21 110 - 120 p-Terphenyl-d14 (Surr) 67 08/14/25 11:43 08/23/25 11:21 145 - 120 Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.19 0.080 ug/L 08/14/25 11:43 08/23/25 11:42 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
1,2,4-Trichlorobenzene

0.19 0.023 ug/L 08/14/25 11:43 08/23/25 11:42 1ND1,2-Diphenylhydrazine(as Azobenzene)

0.96 0.056
ug/L 08/14/25 11:43 08/23/25 1 1:42 1ND2,4,6-Trichlorophenol

0.96 0.045 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2,4-Dichlorophenol

0.19 0.062 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2,4-Dimethylphenol

4.8 2.5 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2,4-Dinitrophenol

0.19 0.12 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2,4-Dinitrotoluene

0.19 0.064 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2,6-Dinitrotoluene

0.19 0.064 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2-Chloronaphthalene

0.19 0.056 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2-Chlorophenol

4.8 1.4 ug/L 08/14/25 11:43 08/23/25 11:42 1ND2-Nitrophenol

4.8 0.52 ug/L 08/14/25 11:43 08/23/25 11:42 1ND3,3'-Dichlorobenzidine

4.8 1.6 ug/L 08/14/25 11:43 08/23/25 11:42 1ND4,6-Dinitro-2-methylphenol

0.19 0.052 ug/L 08/14/25 11:43 08/23/25 11:42 1ND4-Bromophenyl phenyl ether

0.96 0.053 ug/L 08/14/25 11:43 08/23/25 11:42 1ND4-Chloro-3-methylphenol

0.19 0.059 ug/L 08/14/25 11:43 08/23/25 11:42 1ND4-Chlorophenyl phenyl ether

4.8 0.76 ug/L 08/14/25 11:43 08/23/25 11:42 1ND4-Nitrophenol

0.19 0.062 ug/L 08/14/25 11:43 08/23/25 11:42 1NDAcenaphthene

0.19 0.062 ug/L 08/14/25 11:43 08/23/25 11:42 1NDAcenaphthylene

0.19 0.025 ug/L 08/14/25 11:43 08/23/25 11:42 1NDAnthracene

4.8 0.90 ug/L 08/14/25 11:43 08/23/25 11:42 1ND *- *1Benzidine

0.19 0.057 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBenzo[a]anthracene

0.19 0.028 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBenzo[a]pyrene

0.19 0.066 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBenzo[b]fluoranthene

0.19 0.057 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBenzo[g,h,i]perylene

0.19 0.066 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBenzo[k]fluoranthene

0.19 0.068 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBis(2-chloroethoxy)methane

0.19 0.066 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBis(2-chloroethyl)ether

0.19 0.083 ug/L 08/14/25 11:43 08/23/25 11:42 1NDbis (2-Chloroisopropyl) ether

4.8 1.0 ug/L 08/14/25 11:43 08/23/25 11:42 1NDBis(2-ethylhexyl) phthalate

0.96 0.33 ug/L 08/14/25 11:43 08/23/25 11:42 1NDButyl benzyl phthalate

0.19 0.054 ug/L 08/14/25 11:43 08/23/25 11:42 1NDChrysene Eurofins Calscience

Page 15 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) (Continued) Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: W
aterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.19 0.14 ug/L 08/14/25 11:43 08/23/25 11:42 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Dibenz(a,h)anthracene

1.9 0.20 ug/L 08/14/25 11:43 08/23/25 11:42 1NDDiethyl phthalate

1.9 1.6 ug/L 08/14/25 11:43 08/23/25 11:42 1NDDimethyl phthalate

1.9 0.68 ug/L 08/14/25 11:43 08/23/25 11:42 1NDDi-n-butyl phthalate

2.9 0.072 ug/L 08/14/25 11:43 08/23/25 11:42 1NDDi-n-octyl phthalate

0.19 0.053 ug/L 08/14/25 11:43 08/23/25 11:42 1NDFluoranthene

0.19 0.057 ug/L 08/14/25 11:43 08/23/25 11:42 1NDFluorene

0.19 0.11 ug/L 08/14/25 11:43 08/23/25 11:42 1NDHexachloro-1,3-butadiene

0.19 0.067 ug/L 08/14/25 11:43 08/23/25 11:42 1NDHexachlorobenzene

0.19 0.10 ug/L 08/14/25 11:43 08/23/25 11:42 1NDHexachlorocyclopentadiene

0.19 0.093 ug/L 08/14/25 11:43 08/23/25 11:42 1NDHexachloroethane

0.19 0.13 ug/L 08/14/25 11:43 08/23/25 11:42 1NDIndeno[1,2,3-cd]pyrene

0.19 0.068 ug/L 08/14/25 11:43 08/23/25 11:42 1NDIsophorone

0.19 0.054 ug/L 08/14/25 11:43 08/23/25 11:42 1NDNaphthalene

0.19 0.081 ug/L 08/14/25 11:43 08/23/25 11:42 1NDNitrobenzene

0.19 0.088 ug/L 08/14/25 11:43 08/23/25 11:42 1NDN-Nitrosodimethylamine

0.19 0.058 ug/L 08/14/25 11:43 08/23/25 11:42 1NDN-Nitrosodi-n-propylamine

0.19 0.030 ug/L 08/14/25 11:43 08/23/25 11:42 1NDN-Nitrosodiphenylamine

0.96 0.093 ug/L 08/14/25 11:43 08/23/25 11:42 1NDPentachlorophenol

0.19 0.065 ug/L 08/14/25 11:43 08/23/25 11:42 1NDPhenanthrene

0.96 0.032 ug/L 08/14/25 11:43 08/23/25 11:42 1NDPhenol

0.19 0.064 ug/L 08/14/25 11:43 08/23/25 11:42 1NDPyrene 2,4,6-Tribromophenol (Surr) 98 28 - 127 08/14/25 11:43 08/23/25 11:42 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 2-Fluorobiphenyl (Surr) 82 08/14/25 11:43 08/23/25 11:42 131 - 120 2-Fluorophenol (Surr) 61 08/14/25 11:43 08/23/25 11:42 117 - 120 Nitrobenzene-d5 (Surr) 93 08/14/25 11:43 08/23/25 11:42 127 - 120 Phenol-d6 (Surr) 39 08/14/25 11:43 08/23/25 11:42 110 - 120 p-Terphenyl-d14 (Surr) 74 08/14/25 11:43 08/23/25 11:42 145 - 120 Eurofins Calscience

Page 16 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 608.3 - Organochlorine Pesticides in W
ater
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.0097 0.0064 ug/L 08/13/25 11:16 08/19/25 04:30 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
4,4'-DDD

0.0048 0.0027 ug/L 08/13/25 11:16 08/19/25 04:30 1ND4,4'-DDE

0.0048 0.0023 ug/L 08/13/25 11:16 08/19/25 04:30 1ND4,4'-DDT

0.0048 0.0044 ug/L 08/13/25 11:16 08/19/25 04:30 1NDAldrin

0.0048 0.0012 ug/L 08/13/25 11:16 08/19/25 04:30 1NDalpha-Chlordane

0.0019 0.0017 ug/L 08/13/25 11:16 08/19/25 04:30 1NDalpha-BHC

0.0072 0.0057 ug/L 08/13/25 11:16 08/19/25 04:30 1NDbeta-BHC

0.048 0.037 ug/L 08/13/25 11:16 08/19/25 04:30 1NDChlordane

0.0048 0.0029 ug/L 08/13/25 11:16 08/19/25 04:30 1NDdelta-BHC

0.0048 0.0019 ug/L 08/13/25 11:16 08/19/25 04:30 1NDDieldrin

0.0019 0.0018 ug/L 08/13/25 11:16 08/19/25 04:30 1NDEndosulfan I

0.0097 0.0060 ug/L 08/13/25 11:16 08/19/25 04:30 1NDEndosulfan II

0.0048 0.0020 ug/L 08/13/25 11:16 08/19/25 04:30 1NDEndosulfan sulfate

0.0048 0.0034 ug/L 08/13/25 11:16 08/19/25 04:30 1NDEndrin

0.048 0.035 ug/L 08/13/25 11:16 08/19/25 04:30 1NDEndrin aldehyde

0.0048 0.0031 ug/L 08/13/25 11:16 08/19/25 04:30 1NDEndrin ketone

0.014 0.013 ug/L 08/13/25 11:16 08/19/25 04:30 1NDgamma-Chlordane

0.0019 0.00095 ug/L 08/13/25 11:16 08/19/25 04:30 1NDgamma-BHC (Lindane)

0.0019 0.0017 ug/L 08/13/25 11:16 08/19/25 04:30 1NDHeptachlor

0.0097 0.0057 ug/L 08/13/25 11:16 08/19/25 04:30 1NDHeptachlor epoxide

0.0097 0.0054 ug/L 08/13/25 11:16 08/19/25 04:30 1NDMethoxychlor

0.097 0.078 ug/L 08/13/25 11:16 08/19/25 04:30 1NDToxaphene Tetrachloro-m-xylene (Surr) 43 20 - 139 08/13/25 11:16 08/19/25 04:30 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery DCB Decachlorobiphenyl (Surr) 46 08/13/25 11:16 08/19/25 04:30 120 - 154 Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.0097 0.0063 ug/L 08/13/25 11:16 08/19/25 04:44 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
4,4'-DDD

0.0048 0.0027 ug/L 08/13/25 11:16 08/19/25 04:44 1ND4,4'-DDE

0.0048 0.0023 ug/L 08/13/25 11:16 08/19/25 04:44 1ND4,4'-DDT

0.0048 0.0044 ug/L 08/13/25 11:16 08/19/25 04:44 1NDAldrin

0.0048 0.0012 ug/L 08/13/25 11:16 08/19/25 04:44 1NDalpha-Chlordane

0.0019 0.0017 ug/L 08/13/25 11:16 08/19/25 04:44 1NDalpha-BHC

0.0072 0.0056 ug/L 08/13/25 11:16 08/19/25 04:44 1NDbeta-BHC

0.048 0.037 ug/L 08/13/25 11:16 08/19/25 04:44 1NDChlordane

0.0048 0.0029 ug/L 08/13/25 11:16 08/19/25 04:44 1NDdelta-BHC

0.0048 0.0019 ug/L 08/13/25 11:16 08/19/25 04:44 1NDDieldrin

0.0019 0.0018 ug/L 08/13/25 11:16 08/19/25 04:44 1NDEndosulfan I

0.0097 0.0059 ug/L 08/13/25 11:16 08/19/25 04:44 1NDEndosulfan II

0.0048 0.0020 ug/L 08/13/25 11:16 08/19/25 04:44 1NDEndosulfan sulfate

0.0048 0.0033 ug/L 08/13/25 11:16 08/19/25 04:44 1NDEndrin

0.048 0.035 ug/L 08/13/25 11:16 08/19/25 04:44 1NDEndrin aldehyde

0.0048 0.0031 ug/L 08/13/25 11:16 08/19/25 04:44 1NDEndrin ketone

0.014 0.013 ug/L 08/13/25 11:16 08/19/25 04:44 1NDgamma-Chlordane

0.0019 0.00095 ug/L 08/13/25 11:16 08/19/25 04:44 1NDgamma-BHC (Lindane)

0.0019 0.0017 ug/L 08/13/25 11:16 08/19/25 04:44 1NDHeptachlor Eurofins Calscience

Page 17 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EPA 608.3 - Organochlorine Pesticides in W
ater (Continued)
Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.0097 0.0057 ug/L 08/13/25 11:16 08/19/25 04:44 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Heptachlor epoxide

0.0097 0.0054 ug/L 08/13/25 11:16 08/19/25 04:44 1NDMethoxychlor

0.097 0.078 ug/L 08/13/25 11:16 08/19/25 04:44 1NDToxaphene Tetrachloro-m-xylene (Surr) 55 20 - 139 08/13/25 11:16 08/19/25 04:44 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery DCB Decachlorobiphenyl (Surr) 60 08/13/25 11:16 08/19/25 04:44 120 - 154 Eurofins Calscience

Page 18 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 608.3 - Polychlorinated Biphenyls (PCBs) (GC)
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: W
aterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:05 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Aroclor-1016

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:05 1NDAroclor-1221

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:05 1NDAroclor-1232

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:05 1NDAroclor-1242

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:05 1NDAroclor-1248

0.14 0.074 ug/L 08/13/25 11:16 08/18/25 21:05 1NDAroclor-1254

0.14 0.074 ug/L 08/13/25 11:16 08/18/25 21:05 1NDAroclor-1260 Tetrachloro-m-xylene (Surr) 53 20 - 139 08/13/25 11:16 08/18/25 21:05 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery DCB Decachlorobiphenyl (Surr) 71 08/13/25 11:16 08/18/25 21:05 120 - 154 Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:24 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Aroclor-1016

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:24 1NDAroclor-1221

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:24 1NDAroclor-1232

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:24 1NDAroclor-1242

0.14 0.063 ug/L 08/13/25 11:16 08/18/25 21:24 1NDAroclor-1248

0.14 0.074 ug/L 08/13/25 11:16 08/18/25 21:24 1NDAroclor-1254

0.14 0.074 ug/L 08/13/25 11:16 08/18/25 21:24 1NDAroclor-1260 Tetrachloro-m-xylene (Surr) 72 20 - 139 08/13/25 11:16 08/18/25 21:24 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery DCB Decachlorobiphenyl (Surr) 63 08/13/25 11:16 08/18/25 21:24 120 - 154 Eurofins Calscience

Page 19 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 200.7 Rev 4.4 - Metals (ICP) - T
otal Recoverable
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.200 0.0189 mg/L 08/13/25 10:32 08/13/25 15:30 2
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Arsenic

0.0200 0.00547 mg/L 08/13/25 10:32 08/13/25 15:30 20.0556Barium

0.0200 0.000800 mg/L 08/13/25 10:32 08/13/25 15:30 2NDCadmium

0.100 0.00354 mg/L 08/13/25 10:32 08/13/25 15:30 2NDChromium

0.100 0.00500 mg/L 08/13/25 10:32 08/13/25 15:30 20.00760 JCopper

1.00 0.680 mg/L 08/13/25 10:32 08/13/25 15:30 21.75 F1Iron

0.100 0.00904 mg/L 08/13/25 10:32 08/13/25 15:30 2NDLead

0.100 0.0106 mg/L 08/13/25 10:32 08/13/25 15:30 26.90Manganese

0.100 0.00889 mg/L 08/13/25 10:32 08/13/25 15:30 2NDMolybdenum

0.100 0.00480 mg/L 08/13/25 10:32 08/13/25 15:30 20.0330 JNickel

0.200 0.0174 mg/L 08/13/25 10:32 08/13/25 15:30 2NDSelenium

0.0200 0.0153 mg/L 08/13/25 10:32 08/13/25 15:30 2NDSilver

0.500 0.0134 mg/L 08/13/25 10:32 08/13/25 15:30 23.29Zinc Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.100 0.00946 mg/L 08/13/25 10:32 08/13/25 15:41 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Arsenic

0.0100 0.00273 mg/L 08/13/25 10:32 08/13/25 15:41 10.0235Barium

0.0100 0.000400 mg/L 08/13/25 10:32 08/13/25 15:41 1NDCadmium

0.0500 0.00177 mg/L 08/13/25 10:32 08/13/25 15:41 1NDChromium

0.0500 0.00250 mg/L 08/13/25 10:32 08/13/25 15:41 10.00770 JCopper

0.500 0.340 mg/L 08/13/25 10:32 08/13/25 15:41 10.452 JIron

0.0500 0.00452 mg/L 08/13/25 10:32 08/13/25 15:41 1NDLead

0.0500 0.00530 mg/L 08/13/25 10:32 08/13/25 15:41 10.00550 JManganese

0.0500 0.00444 mg/L 08/13/25 10:32 08/13/25 15:41 10.00830 JMolybdenum

0.0500 0.00240 mg/L 08/13/25 10:32 08/13/25 15:41 10.00510 JNickel

0.100 0.00870 mg/L 08/13/25 10:32 08/13/25 15:41 10.00970 JSelenium

0.0100 0.00765 mg/L 08/13/25 10:32 08/13/25 15:41 1NDSilver

0.250 0.00670 mg/L 08/13/25 10:32 08/13/25 15:41 10.0124 JZinc Eurofins Calscience

Page 20 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EP
A 245.1 - Mercury (CV
AA)
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL
ND 0.000200 0.000124 mg/L 08/13/25 09:14 08/13/25 17:16 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Mercury
Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL MDL
ND 0.000200 0.000124 mg/L 08/13/25 09:14 08/13/25 17:18 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
Mercury
Eurofins Calscience

Page 21 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Client Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
General Chemistry
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: W
aterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL MDL

1.53 0.955

0.487 mg/L 08/13/25 10:37 08/14/25 13:40 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
HEM: Oil and Grease (1664B)
100 83.5 mg/L 08/19/25 11:36 18790Total Dissolved Solids (SM 2540C)

2.00 1.60
mg/L 08/15/25 21:06 1100Total Suspended Solids (SM
2540D)

2.00 1.00
mg/L 08/13/25 14:10 08/13/25 15:39 11.56 JBiochemical Oxygen Demand (SM 5210B)
Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: W
aterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL
MDL

0.860 J 0.955 0.487 mg/L 08/13/25 10:37 08/14/25 13:40 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
HEM: Oil and Grease (1664B)

50.0 41.8 mg/L 08/19/25 11:36 13290Total Dissolved Solids (SM 2540C)

1.00 0.800
mg/L 08/15/25 21:06 135.3Total Suspended Solids (SM
2540D)

2.00 1.00
mg/L 08/13/25 14:10 08/13/25 15:52 1NDBiochemical Oxygen Demand (SM 5210B)
Eurofins Calscience

Page 22 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Surrogate Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 624.1 - V
olatile Organic Compounds (GC/MS)
Prep Type: T
otal/NAMatrix: Water
Lab Sample ID Client Sample ID (60-140) (60-140) (60-140) (60-140)

DCA BFB DBFM TOL
124 97 105 98570-242423-1
Percent Surrogate Recovery (Acceptance Limits)
MW-1
104 92 102 98570-242423-1 - RA MW-1
127 94 104 98570-242423-2 MW-2
112 106 101 100LCS 570-610861/1003 Lab Control Sample
99 102 99 98LCS 570-613555/1012 Lab Control Sample
114 103 100 102LCSD 570-610861/4 Lab Control Sample Dup 103 101 98 98LCSD 570-613555/13 Lab Control Sample Dup
119 95 104 97MB 570-610861/7 Method Blank
100 92 100 94MB 570-613555/16 Method Blank
Surrogate Legend
DCA
= 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL
= Toluene-d8 (Surr)
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) Prep T
ype: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (28-127) (31-120) (17-120) (27-120) (10-120) (45-120) TBP FBP 2FP NBZ PHL6 TPHd14
90 77 56 75 36 76380-165934-A-1-A MS
Percent Surrogate Recovery (Acceptance Limits)
Matrix Spike
92 81 58 3774 77380-165934-A-1-B MSD Matrix Spike Duplicate 98 79 56 3793 67570-242423-1 MW-1
98 82 61 3993 74570-242423-2 MW-2
97 84 71 4878 87LCS 570-611589/2-A Lab Control Sample
96 83 70 4778 86LCSD 570-611589/3-A Lab Control Sample Dup 111 87 68 43102 87MB 570-611589/1-A Method Blank
Surrogate Legend
TBP
= 2,4,6-Tribromophenol (Surr)
FBP
= 2-Fluorobiphenyl (Surr)
2FP = 2-Fluorophenol (Surr)
NBZ = Nitrobenzene-d5 (Surr)
PHL6 = Phenol-d6 (Surr)
TPHd14 = p-Terphenyl-d14 (Surr)
Method: 608.3 - Organochlorine Pesticides in Water
Prep T
ype: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (20-139) (20-154)
TCX1 DCB2
43 46570-242423-1
Percent Surrogate Recovery (Acceptance Limits)
MW-1
69 96LCS 570-610581/2-A Lab Control Sample
Surrogate Legend
TCX = T
etrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Eurofins Calscience

Page 23 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Surrogate Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 608.3 - Organochlorine Pesticides in W
ater
Prep Type: T
otal/NAMatrix: Water
Lab Sample ID Client Sample ID (20-139) (20-154)
TCX2 DCB1
55 60570-242423-2
Percent Surrogate Recovery (Acceptance Limits)
MW-2
Surrogate Legend
TCX = T
etrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Method: 608.3 - Organochlorine Pesticides in Water
Prep T
ype: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (20-139) (20-154)
TCX2 DCB2
51 94LCSD 570-610581/3-A
Percent Surrogate Recovery (Acceptance Limits)
Lab Control Sample Dup
Surrogate Legend
TCX = T
etrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Method: 608.3 - Organochlorine Pesticides in Water
Prep T
ype: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (20-139) (20-154)
TCX1 DCB1
66 93MB 570-610581/1-A
Percent Surrogate Recovery (Acceptance Limits)
Method Blank
Surrogate Legend
TCX = T
etrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Method: 608.3 - Polychlorinated Biphenyls (PCBs) (GC)
Prep T
ype: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (20-139) (20-154)
TCX1 DCB1
53 71570-242423-1
Percent Surrogate Recovery (Acceptance Limits)
MW-1
72 63570-242423-2 MW-2
77 87LCS 570-610581/6-A Lab Control Sample
83 108LCSD 570-610581/7-A Lab Control Sample Dup
75 100MB 570-610581/1-A Method Blank
Surrogate Legend
TCX = T
etrachloro-m-xylene (Surr)
DCB = DCB Decachlorobiphenyl (Surr)
Eurofins Calscience

Page 24 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 624.1 - V
olatile Organic Compounds (GC/MS)
Client Sample ID: Method BlankLab Sample ID: MB 570-610861/7 Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 610861
RL MDL
1,1,1,2-Tetrachloroethane ND 0.50 0.14 ug/L 08/13/25 10:53 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.190.50 ug/L 08/13/25 10:53 11,1,1-Trichloroethane
ND 0.150.50 ug/L 08/13/25 10:53 11,1,2,2-Tetrachloroethane ND 1.12.0 ug/L 08/13/25 10:53 11,1,2-Trichloro-1,2,2-trifluoroethane ND 0.200.50 ug/L 08/13/25 10:53 11,1,2-Trichloroethane
ND 0.230.50 ug/L 08/13/25 10:53 11,1-Dichloroethane
ND 0.190.50 ug/L 08/13/25 10:53 11,1-Dichloroethene
ND 0.190.50 ug/L 08/13/25 10:53 11,1-Dichloropropene
ND 0.191.0 ug/L 08/13/25 10:53 11,2,3-Trichlorobenzene
ND 0.271.0 ug/L 08/13/25 10:53 11,2,3-Trichloropropane
ND 0.181.0 ug/L 08/13/25 10:53 11,2,4-Trichlorobenzene
ND 0.220.50 ug/L 08/13/25 10:53 11,2,4-Trimethylbenzene ND 0.471.0 ug/L 08/13/25 10:53 11,2-Dibromo-3-Chloropropane ND 0.190.50 ug/L 08/13/25 10:53 11,2-Dibromoethane
ND 0.160.50 ug/L 08/13/25 10:53 11,2-Dichlorobenzene
ND 0.170.50 ug/L 08/13/25 10:53 11,2-Dichloroethane
ND 0.170.50 ug/L 08/13/25 10:53 11,2-Dichloropropane
ND 0.180.50 ug/L 08/13/25 10:53 11,3,5-Trimethylbenzene ND 0.130.50 ug/L 08/13/25 10:53 11,3-Dichlorobenzene
ND 0.200.50 ug/L 08/13/25 10:53 11,3-Dichloropropane
ND 0.120.50 ug/L 08/13/25 10:53 11,4-Dichlorobenzene
ND 3.410 ug/L 08/13/25 10:53 12,2-Dichloro-1,1,1-trifluoroethane ND 0.231.0 ug/L 08/13/25 10:53 12,2-Dichloropropane
ND 2.35.0 ug/L 08/13/25 10:53 12-Butanone (MEK)
ND 0.922.0 ug/L 08/13/25 10:53 12-Chloroethyl vinyl ether ND 0.120.50 ug/L 08/13/25 10:53 12-Chlorotoluene
ND 1.55.0 ug/L 08/13/25 10:53 12-Hexanone
ND 0.130.50 ug/L 08/13/25 10:53 14-Chlorotoluene
ND 1.25.0 ug/L 08/13/25 10:53 14-Methyl-2-pentanone (MIBK) ND 4.320 ug/L 08/13/25 10:53 1Acetone
ND 1.85.0 ug/L 08/13/25 10:53 1Acrolein
ND 0.982.0 ug/L 08/13/25 10:53 1Acrylonitrile
ND 0.100.50 ug/L 08/13/25 10:53 1Benzene
ND 0.160.50 ug/L 08/13/25 10:53 1Bromobenzene
ND 0.280.50 ug/L 08/13/25 10:53 1Bromochloromethane
ND 0.130.50 ug/L 08/13/25 10:53 1Bromodichloromethane
ND 0.251.0 ug/L 08/13/25 10:53 1Bromoform
ND 0.380.50 ug/L 08/13/25 10:53 1Bromomethane
ND 0.240.50 ug/L 08/13/25 10:53 1cis-1,2-Dichloroethene ND 0.140.50 ug/L 08/13/25 10:53 1cis-1,3-Dichloropropene ND 0.331.0 ug/L 08/13/25 10:53 1Carbon disulfide
ND 0.200.50 ug/L 08/13/25 10:53 1Carbon tetrachloride
ND 0.140.50 ug/L 08/13/25 10:53 1Chlorobenzene
ND 0.361.0 ug/L 08/13/25 10:53 1Chloroethane
ND 0.250.50 ug/L 08/13/25 10:53 1Chloroform
ND 0.230.50 ug/L 08/13/25 10:53 1Chloromethane
ND 0.130.50 ug/L 08/13/25 10:53 1Dibromochloromethane
ND 0.250.50 ug/L 08/13/25 10:53 1Dibromomethane
Eurofins Calscience

Page 25 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 624.1 - V
olatile Organic Compounds (GC/MS) (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 570-610861/7 Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 610861
RL MDL
Dichlorodifluoromethane ND 1.0 0.35 ug/L 08/13/25 10:53 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.310.50 ug/L 08/13/25 10:53 1Di-isopropyl ether (DIPE) ND 39100 ug/L 08/13/25 10:53 1Ethanol
ND 0.0900.50 ug/L 08/13/25 10:53 1Ethylbenzene
ND 0.250.50 ug/L 08/13/25 10:53 1Ethyl-t-butyl ether (ETBE) ND 0.220.50 ug/L 08/13/25 10:53 1Hexachloro-1,3-butadiene ND 16250 ug/L 08/13/25 10:53 1Isopropanol
ND 0.0870.50 ug/L 08/13/25 10:53 1Isopropylbenzene
ND 0.632.0 ug/L 08/13/25 10:53 1Methylene Chloride
ND 0.260.50 ug/L 08/13/25 10:53 1Methyl-t-Butyl Ether (MTBE) ND 0.171.0 ug/L 08/13/25 10:53 1Naphthalene
ND 0.261.0 ug/L 08/13/25 10:53 1n-Butylbenzene
ND 0.0950.50 ug/L 08/13/25 10:53 1N-Propylbenzene
ND 0.120.50 ug/L 08/13/25 10:53 1o-Xylene
ND 0.221.0 ug/L 08/13/25 10:53 1m,p-Xylene
ND 0.180.50 ug/L 08/13/25 10:53 1p-Isopropyltoluene
ND 0.0830.50 ug/L 08/13/25 10:53 1sec-Butylbenzene
ND 0.170.50 ug/L 08/13/25 10:53 1Styrene
ND 0.190.50 ug/L 08/13/25 10:53 1trans-1,2-Dichloroethene ND 0.160.50 ug/L 08/13/25 10:53 1trans-1,3-Dichloropropene ND 0.150.50 ug/L 08/13/25 10:53 1Tert-amyl-methyl ether (TAME) ND 4.410 ug/L 08/13/25 10:53 1tert-Butyl alcohol (TBA)
ND 0.130.50 ug/L 08/13/25 10:53 1tert-Butylbenzene
ND 0.140.50 ug/L 08/13/25 10:53 1Tetrachloroethene
ND 3.410 ug/L 08/13/25 10:53 1Tetrahydrofuran
ND 0.110.50 ug/L 08/13/25 10:53 1Toluene
ND 0.110.50 ug/L 08/13/25 10:53 1Trichloroethene
ND 0.190.50 ug/L 08/13/25 10:53 1Trichlorofluoromethane ND 0.984.0 ug/L 08/13/25 10:53 1Vinyl acetate
ND 0.160.50 ug/L 08/13/25 10:53 1Vinyl chloride
1,2-Dichloroethane-d4 (Surr) 119 60 - 140 08/13/25 10:53 1 MB MB
Surrogate Dil FacPrepared AnalyzedQualifier Limits%Recovery 95 08/13/25 10:53 14-Bromofluorobenzene (Surr) 60 - 140 104 08/13/25 10:53 1Dibromofluoromethane (Surr) 60 - 140 97 08/13/25 10:53 1Toluene-d8 (Surr) 60 - 140
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-610861/1003 Matrix: Water Prep Type: Total/NA
Analysis Batch: 610861
1,1,1,2-Tetrachloroethane 10.0 10.04 ug/L 100 60 - 140
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
1,1,1-Trichloroethane 10.0 10.22 ug/L 102 70 - 130
1,1,2,2-Tetrachloroethane 10.0 10.42 ug/L 104 60 - 140
1,1,2-T
richloro-1,2,2-trifluoroethan
e

10.0 10.91 ug/L 109
60 - 140
1,1,2-Trichloroethane 10.0 10.16 ug/L 102
70 - 130
1,1-Dichloroethane 10.0 9.506 ug/L 95 70 - 130
Eurofins Calscience

Page 26 of 60 ends

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
1,1-Dichloropropene 10.0 9.524 ug/L 95 60 - 140
1,2,3-Trichlorobenzene 10.0 10.87 ug/L 109 60 - 140
1,2,3-Trichloropropane 10.0 10.47 ug/L 105 60 - 140
1,2,4-Trichlorobenzene 10.0 10.39 ug/L 104 60 - 140
1,2,4-Trimethylbenzene 10.0 10.50 ug/L 105 60 - 140
1,2-Dibromo-3-Chloropropane 10.0 12.31 ug/L 123 60 - 140 1,2-Dibromoethane 10.0 10.16 ug/L 102 60 - 140
1,2-Dichlorobenzene 10.0 9.708 ug/L 97 65 - 135
1,2-Dichloroethane 10.0 10.74 ug/L 107 70 - 130
1,2-Dichloropropane 10.0 9.909 ug/L 99 35 - 165
1,3,5-Trimethylbenzene 10.0 10.77 ug/L 108 60 - 140
1,3-Dichlorobenzene 10.0 9.585 ug/L 96 70 - 130
1,3-Dichloropropane 10.0 10.41 ug/L 104 60 - 140
1,4-Dichlorobenzene 10.0 9.359 ug/L 94 65 - 135
2,2-Dichloro-1,1,1-trifluoroethane 10.0 10.63 ug/L 106 60 - 140 2,2-Dichloropropane 10.0 11.28 ug/L 113 60 - 140
2-Butanone (MEK) 10.0 10.60 ug/L 106 60 - 140
2-Chloroethyl vinyl ether 10.0 8.951 ug/L 90 1 - 225
2-Chlorotoluene 10.0 10.11 ug/L 101 60 - 140
2-Hexanone 10.0 9.813 ug/L 98 60 - 140
4-Chlorotoluene 10.0 9.923 ug/L 99 60 - 140
4-Methyl-2-pentanone (MIBK) 10.0 10.32 ug/L 103 60 - 140 Acetone 10.0 11.61 J ug/L 116 60 - 140
Acrolein 20.0 22.68 ug/L 113 60 - 140
Acrylonitrile 10.0 12.56 ug/L 126 60 - 140
Benzene 10.0 9.560 ug/L 96 65 - 135
Bromobenzene 10.0 9.832 ug/L 98 60 - 140
Bromochloromethane 10.0 9.421 ug/L 94 60 - 140
Bromodichloromethane 10.0 10.21 ug/L 102 65 - 135
Bromoform 10.0 10.61 ug/L 106 70 - 130
Bromomethane 10.0 9.449 ug/L 94 15 - 185
cis-1,2-Dichloroethene 10.0 9.527 ug/L 95 60 - 140
cis-1,3-Dichloropropene 10.0 10.51 ug/L 105 25 - 175
Carbon disulfide 10.0 12.65 ug/L 126 60 - 140
Carbon tetrachloride 10.0 9.977 ug/L 100 70 - 130
Chlorobenzene 10.0 9.255 ug/L 93 65 - 135
Chloroethane 10.0 7.208 ug/L 72 40 - 160
Chloroform 10.0 9.153 ug/L 92 70 - 135
Chloromethane 10.0 6.305 ug/L 63 1 - 205
Dibromochloromethane 10.0 10.58 ug/L 106 70 - 135
Dibromomethane 10.0 10.17 ug/L 102 60 - 140
Dichlorodifluoromethane 10.0 10.85 ug/L 108 60 - 140
Di-isopropyl ether (DIPE) 10.0 10.56 ug/L 106 60 - 140
Ethanol 100 89.81 J ug/L 90 60 - 140
Ethylbenzene 10.0 9.992 ug/L 100 60 - 140
Ethyl-t-butyl ether (ETBE) 10.0 11.49 ug/L 115 60 - 140 Hexachloro-1,3-butadiene 10.0 9.808 ug/L 98 60 - 140
Isopropanol 50.0 60.07 J ug/L 120 60 - 140
Eurofins Calscience

Page 27 of 60 ends

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Methylene Chloride 10.0 10.01 ug/L 100 60 - 140
Methyl-t-Butyl Ether (MTBE) 10.0 12.39 ug/L 124 60 - 140 Naphthalene 10.0 12.55 ug/L 125 60 - 140
n-Butylbenzene 10.0 10.61 ug/L 106 60 - 140
N-Propylbenzene 10.0 10.74 ug/L 107 60 - 140
o-Xylene 10.0 10.46 ug/L 105 60 - 140
m,p-Xylene 20.0 20.90 ug/L 104 60 - 140
p-Isopropyltoluene 10.0 10.60 ug/L 106 60 - 140
sec-Butylbenzene 10.0 10.18 ug/L 102 60 - 140
Styrene 10.0 10.72 ug/L 107 60 - 140
trans-1,2-Dichloroethene 10.0 9.631 ug/L 96 70 - 130
trans-1,3-Dichloropropene 10.0 11.68 ug/L 117 50 - 150
Tert-amyl-methyl ether (TAME) 10.0 11.84 ug/L 118 60 - 140 tert-Butyl alcohol (TBA) 50.0 48.33 ug/L 97 60 - 140
tert-Butylbenzene 10.0 9.559 ug/L 96 60 - 140
Tetrachloroethene 10.0 9.263 ug/L 93 70 - 130
Tetrahydrofuran 10.0 10.14 ug/L 101 60 - 140
Toluene 10.0 9.184 ug/L 92 70 - 130
Trichloroethene 10.0 9.134 ug/L 91 65 - 135
Trichlorofluoromethane 10.0 10.84 ug/L 108 50 - 150
Vinyl acetate 10.0 10.33 ug/L 103 60 - 140
Vinyl chloride 10.0 7.003 ug/L 70 5 - 195
1,2-Dichloroethane-d4 (Surr) 60 - 140
Surrogate
112

LCS LCS
Qualifier Limits%Recovery
1064-Bromofluorobenzene (Surr) 60 - 140
101Dibromofluoromethane (Surr) 60 - 140
100Toluene-d8 (Surr) 60 - 140
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610861/4 Matrix: Water Prep Type: Total/NA
Analysis Batch: 610861
1,1,1,2-Tetrachloroethane 10.0 10.18 ug/L 102 60 - 140 1 30 Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
1,1,1-Trichloroethane 10.0 10.25 ug/L 103 70 - 130 0 36 1,1,2,2-Tetrachloroethane 10.0 10.16 ug/L 102 60 - 140 3 61 1,1,2-T
richloro-1,2,2-trifluoroethan
e

10.0 10.41 ug/L 104
60 - 140 5 30
1,1,2-Trichloroethane 10.0 10.41 ug/L 104
70 - 130 2 45
1,1-Dichloroethane 10.0 9.312 ug/L 93 70 - 130 2 40
1,1-Dichloroethene 10.0 9.440 ug/L 94 50 - 150 8 32
1,1-Dichloropropene 10.0 9.611 ug/L 96 60 - 140 1 30
1,2,3-Trichlorobenzene 10.0 11.15 ug/L 111 60 - 140 3 30 1,2,3-Trichloropropane 10.0 10.35 ug/L 104 60 - 140 1 30 1,2,4-Trichlorobenzene 10.0 10.83 ug/L 108 60 - 140 4 30 1,2,4-Trimethylbenzene 10.0 10.79 ug/L 108 60 - 140 3 30 1,2-Dibromo-3-Chloropropane 10.0 12.40 ug/L 124 60 - 140 1 30 Eurofins Calscience

Page 28 of 60 ends

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
1,2-Dichlorobenzene 10.0 9.855 ug/L 99 65 - 135 2 57
1,2-Dichloroethane 10.0 10.42 ug/L 104 70 - 130 3 49
1,2-Dichloropropane 10.0 10.27 ug/L 103 35 - 165 4 55
1,3,5-Trimethylbenzene 10.0 10.90 ug/L 109 60 - 140 1 30 1,3-Dichlorobenzene 10.0 9.905 ug/L 99 70 - 130 3 43
1,3-Dichloropropane 10.0 10.45 ug/L 105 60 - 140 0 30
1,4-Dichlorobenzene 10.0 9.282 ug/L 93 65 - 135 1 57
2,2-Dichloro-1,1,1-trifluoroethane 10.0 9.662 J ug/L 97 60 - 140 10 30 2,2-Dichloropropane 10.0 11.15 ug/L 112 60 - 140 1 30
2-Butanone (MEK) 10.0 8.539 ug/L 85 60 - 140 22 30
2-Chloroethyl vinyl ether 10.0 11.42 ug/L 114 1 - 225 24 71 2-Chlorotoluene 10.0 10.20 ug/L 102 60 - 140 1 30
2-Hexanone 10.0 10.17 ug/L 102 60 - 140 4 30
4-Chlorotoluene 10.0 9.902 ug/L 99 60 - 140 0 30
4-Methyl-2-pentanone (MIBK) 10.0 10.80 ug/L 108 60 - 140 5 30 Acetone 10.0 11.47 J ug/L 115 60 - 140 1 30
Acrolein 20.0 21.36 ug/L 107 60 - 140 6 60
Acrylonitrile 10.0 11.44 ug/L 114 60 - 140 9 60
Benzene 10.0 10.15 ug/L 102 65 - 135 6 61
Bromobenzene 10.0 9.902 ug/L 99 60 - 140 1 30
Bromochloromethane 10.0 9.377 ug/L 94 60 - 140 0 30
Bromodichloromethane 10.0 10.11 ug/L 101 65 - 135 1 56
Bromoform 10.0 10.65 ug/L 106 70 - 130 0 42
Bromomethane 10.0 8.019 ug/L 80 15 - 185 16 61
cis-1,2-Dichloroethene 10.0 9.684 ug/L 97 60 - 140 2 30 cis-1,3-Dichloropropene 10.0 10.86 ug/L 109 25 - 175 3 58 Carbon disulfide 10.0 13.81 ug/L 138 60 - 140 9 30
Carbon tetrachloride 10.0 10.10 ug/L 101 70 - 130 1 41
Chlorobenzene 10.0 9.555 ug/L 96 65 - 135 3 53
Chloroethane 10.0 7.032 ug/L 70 40 - 160 2 78
Chloroform 10.0 9.296 ug/L 93 70 - 135 2 30
Chloromethane 10.0 5.224 ug/L 52 1 - 205 19 60
Dibromochloromethane 10.0 10.28 ug/L 103 70 - 135 3 50
Dibromomethane 10.0 10.28 ug/L 103 60 - 140 1 30
Dichlorodifluoromethane 10.0 9.916 ug/L 99 60 - 140 9 30 Di-isopropyl ether (DIPE) 10.0 10.17 ug/L 102 60 - 140 4 30 Ethanol 100 82.22 J ug/L 82 60 - 140 9 30
Ethylbenzene 10.0 10.13 ug/L 101 60 - 140 1 63
Ethyl-t-butyl ether (ETBE) 10.0 11.68 ug/L 117 60 - 140 2 30 Hexachloro-1,3-butadiene 10.0 10.08 ug/L 101 60 - 140 3 30 Isopropanol 50.0 68.59 J ug/L 137 60 - 140 13 30
Isopropylbenzene 10.0 10.68 ug/L 107 60 - 140 1 30
Methylene Chloride 10.0 9.672 ug/L 97 60 - 140 3 28
Methyl-t-Butyl Ether (MTBE) 10.0 11.95 ug/L 119 60 - 140 4 30 Naphthalene 10.0 12.68 ug/L 127 60 - 140 1 30
n-Butylbenzene 10.0 10.82 ug/L 108 60 - 140 2 30
N-Propylbenzene 10.0 10.96 ug/L 110 60 - 140 2 30
o-Xylene 10.0 10.61 ug/L 106 60 - 140 1 30
Eurofins Calscience

Page 29 of 60 ends

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
p-Isopropyltoluene 10.0 10.92 ug/L 109 60 - 140 3 30
sec-Butylbenzene 10.0 10.63 ug/L 106 60 - 140 4 30
Styrene 10.0 10.83 ug/L 108 60 - 140 1 30
trans-1,2-Dichloroethene 10.0 9.551 ug/L 96 70 - 130 1 45 trans-1,3-Dichloropropene 10.0 12.07 ug/L 121 50 - 150 3 86 Tert-amyl-methyl ether (TAME) 10.0 12.21 ug/L 122 60 - 140 3 30 tert-Butyl alcohol (TBA) 50.0 53.02 ug/L 106 60 - 140 9 30 tert-Butylbenzene 10.0 9.879 ug/L 99 60 - 140 3 30
Tetrachloroethene 10.0 9.262 ug/L 93 70 - 130 0 39
Tetrahydrofuran 10.0 10.24 ug/L 102 60 - 140 1 30
Toluene 10.0 9.711 ug/L 97 70 - 130 6 41
Trichloroethene 10.0 9.566 ug/L 96 65 - 135 5 48
Trichlorofluoromethane 10.0 10.25 ug/L 102 50 - 150 6 84 Vinyl acetate 10.0 10.09 ug/L 101 60 - 140 2 30
Vinyl chloride 10.0 5.906 ug/L 59 5 - 195 17 66
1,2-Dichloroethane-d4 (Surr) 60 - 140
Surrogate
114

LCSD LCSD
Qualifier Limits%Recovery
1034-Bromofluorobenzene (Surr) 60 - 140
100Dibromofluoromethane (Surr) 60 - 140
102Toluene-d8 (Surr) 60 - 140
Client Sample ID: Method BlankLab Sample ID: MB 570-613555/16 Matrix: Water Prep Type: Total/NA
Analysis Batch: 613555
RL MDL
Carbon disulfide ND 1.0 0.33 ug/L 08/19/25 15:48 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
1,2-Dichloroethane-d4 (Surr) 100 60 - 140 08/19/25 15:48 1 MB MB
Surrogate Dil FacPrepared AnalyzedQualifier Limits%Recovery 92 08/19/25 15:48 14-Bromofluorobenzene (Surr) 60 - 140 100 08/19/25 15:48 1Dibromofluoromethane (Surr) 60 - 140 94 08/19/25 15:48 1Toluene-d8 (Surr) 60 - 140
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-613555/1012 Matrix: Water Prep Type: Total/NA
Analysis Batch: 613555
Carbon disulfide 10.0 9.228 ug/L 92 60 - 140
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
1,2-Dichloroethane-d4 (Surr) 60 - 140
Surrogate
99 LCS LCS
Qualifier Limits%Recovery
1024-Bromofluorobenzene (Surr) 60 - 140
99Dibromofluoromethane (Surr) 60 - 140
98Toluene-d8 (Surr) 60 - 140
Eurofins Calscience

Page 30 of 60 ends

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
1,2-Dichloroethane-d4 (Surr) 60 - 140
Surrogate
103

LCSD LCSD
Qualifier Limits%Recovery
1014-Bromofluorobenzene (Surr) 60 - 140
98Dibromofluoromethane (Surr) 60 - 140
98Toluene-d8 (Surr) 60 - 140
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) Client Sample ID: Method BlankLab Sample ID: MB 570-611589/1-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 615762 Prep Batch: 611589
RL MDL
1,2,4-Trichlorobenzene ND 0.20 0.083 ug/L 08/14/25 11:43 08/23/25 08:48 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.0240.20 ug/L 08/14/25 11:43 08/23/25 08:48 1
1,2-Diphenylhydrazine(as Azobenzene)
ND 0.0591.0 ug/L 08/14/25 11:43 08/23/25 08:48 12,4,6-Trichlorophenol ND 0.0471.0 ug/L 08/14/25 11:43 08/23/25 08:48 12,4-Dichlorophenol ND 0.0640.20 ug/L 08/14/25 11:43 08/23/25 08:48 12,4-Dimethylphenol ND 2.65.0 ug/L 08/14/25 11:43 08/23/25 08:48 12,4-Dinitrophenol ND 0.130.20 ug/L 08/14/25 11:43 08/23/25 08:48 12,4-Dinitrotoluene ND 0.0670.20 ug/L 08/14/25 11:43 08/23/25 08:48 12,6-Dinitrotoluene ND 0.0660.20 ug/L 08/14/25 11:43 08/23/25 08:48 12-Chloronaphthalene ND 0.0580.20 ug/L 08/14/25 11:43 08/23/25 08:48 12-Chlorophenol ND 1.55.0 ug/L 08/14/25 11:43 08/23/25 08:48 12-Nitrophenol ND 0.555.0 ug/L 08/14/25 11:43 08/23/25 08:48 13,3'-Dichlorobenzidine ND 1.75.0 ug/L 08/14/25 11:43 08/23/25 08:48 14,6-Dinitro-2-methylphenol ND 0.0540.20 ug/L 08/14/25 11:43 08/23/25 08:48 14-Bromophenyl phenyl ether ND 0.0551.0 ug/L 08/14/25 11:43 08/23/25 08:48 14-Chloro-3-methylphenol ND 0.0610.20 ug/L 08/14/25 11:43 08/23/25 08:48 14-Chlorophenyl phenyl ether ND 0.795.0 ug/L 08/14/25 11:43 08/23/25 08:48 14-Nitrophenol ND 0.0650.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Acenaphthene ND 0.0650.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Acenaphthylene ND 0.0260.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Anthracene ND 0.945.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Benzidine ND 0.0590.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Benzo[a]anthracene ND 0.0290.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Benzo[a]pyrene ND 0.0680.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Benzo[b]fluoranthene ND 0.0600.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Benzo[g,h,i]perylene ND 0.0690.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Benzo[k]fluoranthene ND 0.0710.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Bis(2-chloroethoxy)methane ND 0.0690.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Bis(2-chloroethyl)ether ND 0.0870.20 ug/L 08/14/25 11:43 08/23/25 08:48 1bis (2-Chloroisopropyl) ether ND 1.15.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Bis(2-ethylhexyl) phthalate

0.5234 J 0.351.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Butyl benzyl phthalate ND 0.0560.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Chrysene ND 0.140.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Dibenz(a,h)anthracene ND 0.202.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Diethyl phthalate Eurofins Calscience

Page 31 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) (Continued) Client Sample ID: Method BlankLab Sample ID: MB 570-61
1589/1-A
Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 615762 Prep Batch: 611589
RL MDL
Dimethyl phthalate ND 2.0 1.6 ug/L 08/14/25 11:43 08/23/25 08:48 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.712.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Di-n-butyl phthalate ND 0.0753.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Di-n-octyl phthalate ND 0.0560.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Fluoranthene ND 0.0600.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Fluorene ND 0.110.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Hexachloro-1,3-butadiene ND 0.0700.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Hexachlorobenzene ND 0.110.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Hexachlorocyclopentadiene ND 0.0970.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Hexachloroethane ND 0.130.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Indeno[1,2,3-cd]pyrene ND 0.0710.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Isophorone ND 0.0560.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Naphthalene ND 0.0840.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Nitrobenzene ND 0.0910.20 ug/L 08/14/25 11:43 08/23/25 08:48 1N-Nitrosodimethylamine ND 0.0600.20 ug/L 08/14/25 11:43 08/23/25 08:48 1N-Nitrosodi-n-propylamine ND 0.0310.20 ug/L 08/14/25 11:43 08/23/25 08:48 1N-Nitrosodiphenylamine ND 0.0961.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Pentachlorophenol ND 0.0680.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Phenanthrene ND 0.0331.0 ug/L 08/14/25 11:43 08/23/25 08:48 1Phenol
ND 0.0670.20 ug/L 08/14/25 11:43 08/23/25 08:48 1Pyrene 2,4,6-Tribromophenol (Surr) 111 28 - 127 08/23/25 08:48 1 MB MB
Surrogate
08/14/25 11:43
Dil FacPrepared AnalyzedQualifier Limits%Recovery
87 08/14/25 11:43 08/23/25 08:48 12-Fluorobiphenyl (Surr) 31 - 120 68 08/14/25 11:43 08/23/25 08:48 12-Fluorophenol (Surr) 17 - 120 102 08/14/25 11:43 08/23/25 08:48 1Nitrobenzene-d5 (Surr) 27 - 120 43 08/14/25 11:43 08/23/25 08:48 1Phenol-d6 (Surr) 10 - 120 87 08/14/25 11:43 08/23/25 08:48 1p-Terphenyl-d14 (Surr) 45 - 120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-611589/2-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 615762 Prep Batch: 611589
1,2,4-Trichlorobenzene 20.0 15.37 ug/L 77 57 - 130
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
1,2-Diphenylhydrazine(as
Azobenzene)

20.0 18.38 ug/L 92 60 - 115
2,4,6-Trichlorophenol 20.0 21.12 ug/L 106 52 - 129
2,4-Dichlorophenol 20.0 17.20 ug/L 86 53 - 122
2,4-Dimethylphenol 20.0 13.60 ug/L 68 42 - 120
2,4-Dinitrophenol 20.0 29.64 ug/L 148 1 - 173
2,4-Dinitrotoluene 20.0 24.02 ug/L 120 48 - 127
2,6-Dinitrotoluene 20.0 23.32 ug/L 117 68 - 137
2-Chloronaphthalene 20.0 19.01 ug/L 95 65 - 120
2-Chlorophenol 20.0 20.40 ug/L 102 36 - 120
2-Nitrophenol 20.0 21.38 ug/L 107 45 - 167
3,3'-Dichlorobenzidine 20.0 15.92 ug/L 80 8 - 213
4,6-Dinitro-2-methylphenol 20.0 24.48 ug/L 122 53 - 130 4-Bromophenyl phenyl ether 20.0 18.33 ug/L 92 65 - 120
Eurofins Calscience

Page 32 of 60 ends

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
4-Chlorophenyl phenyl ether 20.0 19.60 ug/L 98 38 - 145 4-Nitrophenol 20.0 12.94 ug/L 65 13 - 129
Acenaphthene 20.0 21.44 ug/L 107 60 - 132
Acenaphthylene 20.0 22.09 ug/L 110 54 - 126
Anthracene 20.0 21.30 ug/L 107 43 - 120
Benzidine 20.0 ND *- ug/L 0.4 20 - 164
Benzo[a]anthracene 20.0 22.35 ug/L 112 42 - 133
Benzo[a]pyrene 20.0 22.86 ug/L 114 32 - 148
Benzo[b]fluoranthene 20.0 23.11 ug/L 116 42 - 140
Benzo[g,h,i]perylene 20.0 21.93 ug/L 110 1 - 195
Benzo[k]fluoranthene 20.0 22.17 ug/L 111 25 - 146
Bis(2-chloroethoxy)methane 20.0 16.43 ug/L 82 49 - 165
Bis(2-chloroethyl)ether 20.0 19.70 ug/L 98 43 - 126
bis (2-Chloroisopropyl) ether 20.0 19.36 ug/L 97 63 - 139 Bis(2-ethylhexyl) phthalate 20.0 21.68 ug/L 108 29 - 137 Butyl benzyl phthalate 20.0 20.50 ug/L 103 1 - 140
Chrysene 20.0 21.72 ug/L 109 44 - 140
Dibenz(a,h)anthracene 20.0 22.63 ug/L 113 1 - 200
Diethyl phthalate 20.0 20.70 ug/L 104 1 - 120
Dimethyl phthalate 20.0 19.90 ug/L 100 1 - 120
Di-n-butyl phthalate 20.0 22.55 ug/L 113 8 - 120
Di-n-octyl phthalate 20.0 24.20 ug/L 121 19 - 132
Fluoranthene 20.0 23.48 ug/L 117 43 - 121
Fluorene 20.0 22.01 ug/L 110 70 - 120
Hexachloro-1,3-butadiene 20.0 14.50 ug/L 72 38 - 120
Hexachlorobenzene 20.0 18.38 ug/L 92 8 - 142
Hexachlorocyclopentadiene 20.0 17.67 ug/L 88 43 - 145
Hexachloroethane 20.0 16.74 ug/L 84 55 - 120
Indeno[1,2,3-cd]pyrene 20.0 22.06 ug/L 110 1 - 151
Isophorone 20.0 16.46 ug/L 82 47 - 180
Naphthalene 20.0 16.78 ug/L 84 36 - 120
Nitrobenzene 20.0 16.91 ug/L 85 54 - 158
N-Nitrosodimethylamine 20.0 14.48 ug/L 72 20 - 120
N-Nitrosodi-n-propylamine 20.0 19.48 ug/L 97 14 - 198
N-Nitrosodiphenylamine 20.0 21.76 ug/L 109 65 - 133
Pentachlorophenol 20.0 20.34 ug/L 102 38 - 152
Phenanthrene 20.0 21.36 ug/L 107 65 - 120
Phenol 20.0 10.53 ug/L 53 17 - 120
Pyrene 20.0 21.99 ug/L 110 70 - 120
2,4,6-Tribromophenol (Surr) 28 - 127
Surrogate
97 LCS LCS
Qualifier Limits%Recovery
842-Fluorobiphenyl (Surr) 31 - 120
712-Fluorophenol (Surr) 17 - 120
78Nitrobenzene-d5 (Surr) 27 - 120
48Phenol-d6 (Surr) 10 - 120
87p-Terphenyl-d14 (Surr) 45 - 120
Eurofins Calscience

Page 33 of 60 ends

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
1,2-Diphenylhydrazine(as
Azobenzene)

20.0 18.56 ug/L 93 60 - 115 1 30
2,4,6-Trichlorophenol 20.0 21.54 ug/L 108 52 - 129 2 35 2,4-Dichlorophenol 20.0 17.09 ug/L 85 53 - 122 1 30
2,4-Dimethylphenol 20.0 15.51 ug/L 78 42 - 120 13 35
2,4-Dinitrophenol 20.0 28.95 ug/L 145 1 - 173 2 79
2,4-Dinitrotoluene 20.0 24.37 ug/L 122 48 - 127 1 25
2,6-Dinitrotoluene 20.0 23.28 ug/L 116 68 - 137 0 29
2-Chloronaphthalene 20.0 19.01 ug/L 95 65 - 120 0 15
2-Chlorophenol 20.0 20.17 ug/L 101 36 - 120 1 37
2-Nitrophenol 20.0 21.48 ug/L 107 45 - 167 0 33
3,3'-Dichlorobenzidine 20.0 18.14 ug/L 91 8 - 213 13 65 4,6-Dinitro-2-methylphenol 20.0 24.65 ug/L 123 53 - 130 1 122 4-Bromophenyl phenyl ether 20.0 18.41 ug/L 92 65 - 120 0 26 4-Chloro-3-methylphenol 20.0 17.97 ug/L 90 41 - 128 2 44 4-Chlorophenyl phenyl ether 20.0 19.73 ug/L 99 38 - 145 1 36 4-Nitrophenol 20.0 13.29 ug/L 66 13 - 129 3 79
Acenaphthene 20.0 21.48 ug/L 107 60 - 132 0 29
Acenaphthylene 20.0 21.93 ug/L 110 54 - 126 1 45
Anthracene 20.0 21.45 ug/L 107 43 - 120 1 40
Benzidine 20.0 ND *- *1 ug/L 3 20 - 164 156 30
Benzo[a]anthracene 20.0 22.92 ug/L 115 42 - 133 2 32
Benzo[a]pyrene 20.0 23.26 ug/L 116 32 - 148 2 43
Benzo[b]fluoranthene 20.0 23.15 ug/L 116 42 - 140 0 43
Benzo[g,h,i]perylene 20.0 22.36 ug/L 112 1 - 195 2 61
Benzo[k]fluoranthene 20.0 22.86 ug/L 114 25 - 146 3 38
Bis(2-chloroethoxy)methane 20.0 16.46 ug/L 82 49 - 165 0 32 Bis(2-chloroethyl)ether 20.0 20.31 ug/L 102 43 - 126 3 65 bis (2-Chloroisopropyl) ether 20.0 19.10 ug/L 95 63 - 139 1 46 Bis(2-ethylhexyl) phthalate 20.0 22.09 ug/L 110 29 - 137 2 50 Butyl benzyl phthalate 20.0 20.95 ug/L 105 1 - 140 2 36 Chrysene 20.0 21.76 ug/L 109 44 - 140 0 53
Dibenz(a,h)anthracene 20.0 23.03 ug/L 115 1 - 200 2 75
Diethyl phthalate 20.0 21.05 ug/L 105 1 - 120 2 60
Dimethyl phthalate 20.0 20.12 ug/L 101 1 - 120 1 110
Di-n-butyl phthalate 20.0 22.93 ug/L 115 8 - 120 2 28
Di-n-octyl phthalate 20.0 24.46 ug/L 122 19 - 132 1 42
Fluoranthene 20.0 23.81 ug/L 119 43 - 121 1 40
Fluorene 20.0 22.41 ug/L 112 70 - 120 2 23
Hexachloro-1,3-butadiene 20.0 14.16 ug/L 71 38 - 120 2 38 Hexachlorobenzene 20.0 18.46 ug/L 92 8 - 142 0 33
Hexachlorocyclopentadiene 20.0 17.08 ug/L 85 43 - 145 3 22 Hexachloroethane 20.0 16.36 ug/L 82 55 - 120 2 32
Indeno[1,2,3-cd]pyrene 20.0 22.29 ug/L 111 1 - 151 1 60 Isophorone 20.0 16.61 ug/L 83 47 - 180 1 56
Naphthalene 20.0 16.90 ug/L 84 36 - 120 1 39
Nitrobenzene 20.0 17.26 ug/L 86 54 - 158 2 37
N-Nitrosodimethylamine 20.0 13.44 ug/L 67 20 - 120 7 21 Eurofins Calscience

Page 34 of 60 ends

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
N-Nitrosodiphenylamine 20.0 22.95 ug/L 115 65 - 133 5 20 Pentachlorophenol 20.0 20.40 ug/L 102 38 - 152 0 52
Phenanthrene 20.0 21.76 ug/L 109 65 - 120 2 24
Phenol 20.0 10.57 ug/L 53 17 - 120 0 39
Pyrene 20.0 22.31 ug/L 112 70 - 120 1 30
2,4,6-Tribromophenol (Surr) 28 - 127
Surrogate
96 LCSD LCSD
Qualifier Limits%Recovery
832-Fluorobiphenyl (Surr) 31 - 120
702-Fluorophenol (Surr) 17 - 120
78Nitrobenzene-d5 (Surr) 27 - 120
47Phenol-d6 (Surr) 10 - 120
86p-Terphenyl-d14 (Surr) 45 - 120
Client Sample ID: Matrix SpikeLab Sample ID: 380-165934-A-1-A MS Matrix: Water Prep Type: Total/NA
Analysis Batch: 615762 Prep Batch: 611589
1,2,4-Trichlorobenzene ND 19.2 13.51 ug/L 70 44 - 142
Analyte
MS MS
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
1,2-Diphenylhydrazine(as
Azobenzene)
ND 19.2 15.68 ug/L 82 21 - 151
2,4,6-Trichlorophenol ND 19.2 17.88 ug/L 93 37 - 144
2,4-Dichlorophenol ND 19.2 14.64 ug/L 76 39 - 135
2,4-Dimethylphenol ND 19.2 13.64 ug/L 71 32 - 120
2,4-Dinitrophenol ND 19.2 25.32 ug/L 132 1 - 191
2,4-Dinitrotoluene ND 19.2 20.65 ug/L 108 39 - 139
2,6-Dinitrotoluene ND 19.2 19.91 ug/L 104 50 - 158
2-Chloronaphthalene ND 19.2 16.26 ug/L 85 60 - 120
2-Chlorophenol ND 19.2 17.28 ug/L 90 23 - 143
2-Nitrophenol ND 19.2 18.53 ug/L 97 29 - 182
3,3'-Dichlorobenzidine ND 19.2 13.85 ug/L 72 1 - 262
4,6-Dinitro-2-methylphenol ND 19.2 21.03 ug/L 110 1 - 181 4-Bromophenyl phenyl ether ND 19.2 15.69 ug/L 82 53 - 127 4-Chloro-3-methylphenol ND 19.2 15.25 ug/L 80 22 - 147
4-Chlorophenyl phenyl ether ND 19.2 16.57 ug/L 86 25 - 158 4-Nitrophenol ND 19.2 10.22 ug/L 53 1 - 132
Acenaphthene ND 19.2 19.57 ug/L 102 47 - 145
Acenaphthylene ND 19.2 20.00 ug/L 104 33 - 145
Anthracene ND 19.2 19.65 ug/L 102 27 - 133
Benzidine ND *- F1 *1 19.2 ND F1 ug/L 0 10 - 57
Benzo[a]anthracene ND 19.2 20.65 ug/L 108 33 - 143
Benzo[a]pyrene ND 19.2 20.98 ug/L 109 17 - 163
Benzo[b]fluoranthene ND 19.2 20.60 ug/L 107 24 - 159
Benzo[g,h,i]perylene ND 19.2 20.11 ug/L 105 1 - 219
Benzo[k]fluoranthene ND 19.2 20.20 ug/L 105 11 - 162
Bis(2-chloroethoxy)methane ND 19.2 14.23 ug/L 74 33 - 184 Bis(2-chloroethyl)ether ND 19.2 16.90 ug/L 88 12 - 158
Eurofins Calscience

Page 35 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) (Continued) Client Sample ID: Matrix SpikeLab Sample ID: 380-165934-A-1-A MS
Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 615762 Prep Batch: 611589
bis (2-Chloroisopropyl) ether ND 19.2 16.32 ug/L 85 36 - 166 Analyte
MS MS
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
Bis(2-ethylhexyl) phthalate 9.3 F1 19.2 50.19 F1 ug/L 213 8 - 158 Butyl benzyl phthalate ND 19.2 17.80 ug/L 93 1 - 152
Chrysene ND 19.2 19.90 ug/L 104 17 - 168
Dibenz(a,h)anthracene ND 19.2 20.61 ug/L 107 1 - 227
Diethyl phthalate ND 19.2 17.88 ug/L 93 1 - 120
Dimethyl phthalate ND 19.2 17.23 ug/L 90 1 - 120
Di-n-butyl phthalate ND 19.2 19.97 ug/L 104 1 - 120
Di-n-octyl phthalate ND 19.2 20.58 ug/L 107 4 - 146
Fluoranthene ND 19.2 21.75 ug/L 113 26 - 137
Fluorene ND 19.2 20.23 ug/L 105 59 - 121
Hexachloro-1,3-butadiene ND 19.2 12.98 ug/L 68 24 - 120 Hexachlorobenzene ND 19.2 15.77 ug/L 82 1 - 152
Hexachlorocyclopentadiene ND 19.2 15.62 ug/L 81 10 - 162 Hexachloroethane ND 19.2 14.49 ug/L 76 40 - 120
Indeno[1,2,3-cd]pyrene ND 19.2 20.03 ug/L 104 1 - 171
Isophorone ND 19.2 14.36 ug/L 75 21 - 196
Naphthalene ND 19.2 16.11 ug/L 84 21 - 133
Nitrobenzene ND 19.2 15.20 ug/L 79 35 - 180
N-Nitrosodimethylamine ND 19.2 11.84 ug/L 62 16 - 78
N-Nitrosodi-n-propylamine ND 19.2 18.26 ug/L 95 1 - 230 N-Nitrosodiphenylamine ND 19.2 20.88 ug/L 109 10 - 179
Pentachlorophenol ND 19.2 17.52 ug/L 91 14 - 176
Phenanthrene ND 19.2 19.70 ug/L 103 54 - 120
Phenol ND 19.2 7.458 ug/L 39 5 - 120
Pyrene ND 19.2 20.34 ug/L 106 52 - 120
2,4,6-Tribromophenol (Surr) 28 - 127
Surrogate
90 MS MS
Qualifier Limits%Recovery
772-Fluorobiphenyl (Surr) 31 - 120
562-Fluorophenol (Surr) 17 - 120
75Nitrobenzene-d5 (Surr) 27 - 120
36Phenol-d6 (Surr) 10 - 120
76p-Terphenyl-d14 (Surr) 45 - 120
Client Sample ID: Matrix Spike DuplicateLab Sample ID: 380-165934-A-1-B MSD Matrix: Water Prep Type: Total/NA
Analysis Batch: 615762 Prep Batch: 611589
1,2,4-Trichlorobenzene ND 19.1 14.63 ug/L 77 44 - 142 8 50 Analyte

MSD MSD
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
1,2-Diphenylhydrazine(as
Azobenzene)
ND 19.1 17.70 ug/L 93 21 - 151 12 30
2,4,6-Trichlorophenol ND 19.1 20.13 ug/L 106 37 - 144 12 58 2,4-Dichlorophenol ND 19.1 16.32 ug/L 86 39 - 135 11 50 2,4-Dimethylphenol ND 19.1 14.67 ug/L 77 32 - 120 7 58
2,4-Dinitrophenol ND 19.1 28.33 ug/L 148 1 - 191 11 132 2,4-Dinitrotoluene ND 19.1 23.23 ug/L 122 39 - 139 12 42 2,6-Dinitrotoluene ND 19.1 22.15 ug/L 116 50 - 158 11 48 Eurofins Calscience

Page 36 of 60 ends

MSD MSD
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
2-Chlorophenol ND 19.1 19.13 ug/L 100 23 - 143 10 61
2-Nitrophenol ND 19.1 20.00 ug/L 105 29 - 182 8 55
3,3'-Dichlorobenzidine ND 19.1 16.46 ug/L 86 1 - 262 17 108 4,6-Dinitro-2-methylphenol ND 19.1 23.15 ug/L 121 1 - 181 10 203 4-Bromophenyl phenyl ether ND 19.1 17.46 ug/L 92 53 - 127 11 43 4-Chloro-3-methylphenol ND 19.1 16.56 ug/L 87 22 - 147 8 73 4-Chlorophenyl phenyl ether ND 19.1 18.68 ug/L 98 25 - 158 12 61 4-Nitrophenol ND 19.1 11.33 ug/L 59 1 - 132 10 131
Acenaphthene ND 19.1 22.11 ug/L 116 47 - 145 12 48
Acenaphthylene ND 19.1 22.72 ug/L 119 33 - 145 13 74
Anthracene ND 19.1 21.73 ug/L 114 27 - 133 10 66
Benzidine ND *- F1 *1 19.1 ND F1 ug/L 0 10 - 57 NC 30
Benzo[a]anthracene ND 19.1 22.85 ug/L 120 33 - 143 10 53 Benzo[a]pyrene ND 19.1 23.27 ug/L 122 17 - 163 10 72
Benzo[b]fluoranthene ND 19.1 23.41 ug/L 123 24 - 159 13 71 Benzo[g,h,i]perylene ND 19.1 22.20 ug/L 116 1 - 219 10 97 Benzo[k]fluoranthene ND 19.1 22.10 ug/L 116 11 - 162 9 63 Bis(2-chloroethoxy)methane ND 19.1 15.45 ug/L 81 33 - 184 8 54 Bis(2-chloroethyl)ether ND 19.1 18.45 ug/L 97 12 - 158 9 108 bis (2-Chloroisopropyl) ether ND 19.1 17.90 ug/L 94 36 - 166 9 76 Bis(2-ethylhexyl) phthalate 9.3 F1 19.1 20.60 F2 ug/L 59 8 - 158 84 82 Butyl benzyl phthalate ND 19.1 19.63 ug/L 103 1 - 152 10 60 Chrysene ND 19.1 22.03 ug/L 115 17 - 168 10 87
Dibenz(a,h)anthracene ND 19.1 22.90 ug/L 120 1 - 227 11 126 Diethyl phthalate ND 19.1 19.83 ug/L 104 1 - 120 10 100 Dimethyl phthalate ND 19.1 19.22 ug/L 101 1 - 120 11 183 Di-n-butyl phthalate ND 19.1 21.67 ug/L 114 1 - 120 8 47 Di-n-octyl phthalate ND 19.1 22.54 ug/L 118 4 - 146 9 69 Fluoranthene ND 19.1 23.99 ug/L 126 26 - 137 10 66
Fluorene ND 19.1 22.56 ug/L 118 59 - 121 11 38
Hexachloro-1,3-butadiene ND 19.1 14.13 ug/L 74 24 - 120 9 62 Hexachlorobenzene ND 19.1 17.72 ug/L 93 1 - 152 12 55
Hexachlorocyclopentadiene ND 19.1 17.88 ug/L 94 10 - 162 14 30 Hexachloroethane ND 19.1 16.02 ug/L 84 40 - 120 10 52
Indeno[1,2,3-cd]pyrene ND 19.1 22.17 ug/L 116 1 - 171 10 99 Isophorone ND 19.1 15.62 ug/L 82 21 - 196 8 93
Naphthalene ND 19.1 17.53 ug/L 92 21 - 133 8 65
Nitrobenzene ND 19.1 16.21 ug/L 85 35 - 180 6 62
N-Nitrosodimethylamine ND 19.1 11.53 ug/L 60 16 - 78 3 30 N-Nitrosodi-n-propylamine ND 19.1 18.66 ug/L 98 1 - 230 2 87 N-Nitrosodiphenylamine ND 19.1 21.53 ug/L 113 10 - 179 3 30 Pentachlorophenol ND 19.1 19.23 ug/L 101 14 - 176 9 86
Phenanthrene ND 19.1 21.72 ug/L 114 54 - 120 10 39
Phenol ND 19.1 8.438 ug/L 44 5 - 120 12 64
Pyrene ND 19.1 22.50 ug/L 118 52 - 120 10 49
Eurofins Calscience

Page 37 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) (Continued) Client Sample ID: Matrix Spike DuplicateLab Sample ID: 380-165934-A-1-B MSD Matrix: W
ater Prep Type: T
otal/NA
Analysis Batch: 615762 Prep Batch: 611589
2,4,6-Tribromophenol (Surr) 28 - 127
Surrogate
92 MSD MSD
Qualifier Limits%Recovery
812-Fluorobiphenyl (Surr) 31 - 120
582-Fluorophenol (Surr) 17 - 120
74Nitrobenzene-d5 (Surr) 27 - 120
37Phenol-d6 (Surr) 10 - 120
77p-Terphenyl-d14 (Surr) 45 - 120
Method: 608.3 - Organochlorine Pesticides in Water
Client Sample ID: Method BlankLab Sample ID: MB 570-610581/1-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613447 Prep Batch: 610581
RL MDL
4,4'-DDD ND 0.0067 0.0044 ug/L 08/12/25 15:45 08/19/25 03:48 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.00190.0033 ug/L 08/12/25 15:45 08/19/25 03:48 14,4'-DDE ND 0.00160.0033 ug/L 08/12/25 15:45 08/19/25 03:48 14,4'-DDT ND 0.00310.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1Aldrin ND 0.000830.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1alpha-Chlordane ND 0.00120.0013 ug/L 08/12/25 15:45 08/19/25 03:48 1alpha-BHC ND 0.00390.0050 ug/L 08/12/25 15:45 08/19/25 03:48 1beta-BHC ND 0.0260.033 ug/L 08/12/25 15:45 08/19/25 03:48 1Chlordane ND 0.00200.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1delta-BHC ND 0.00130.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1Dieldrin ND 0.00130.0013 ug/L 08/12/25 15:45 08/19/25 03:48 1Endosulfan I ND 0.00410.0067 ug/L 08/12/25 15:45 08/19/25 03:48 1Endosulfan II ND 0.00140.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1Endosulfan sulfate ND 0.00230.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1Endrin ND 0.0240.033 ug/L 08/12/25 15:45 08/19/25 03:48 1Endrin aldehyde ND 0.00210.0033 ug/L 08/12/25 15:45 08/19/25 03:48 1Endrin ketone ND 0.00870.010 ug/L 08/12/25 15:45 08/19/25 03:48 1gamma-Chlordane ND 0.000660.0013 ug/L 08/12/25 15:45 08/19/25 03:48 1gamma-BHC (Lindane) ND 0.00120.0013 ug/L 08/12/25 15:45 08/19/25 03:48 1Heptachlor ND 0.00390.0067 ug/L 08/12/25 15:45 08/19/25 03:48 1Heptachlor epoxide ND 0.00370.0067 ug/L 08/12/25 15:45 08/19/25 03:48 1Methoxychlor ND 0.0540.067 ug/L 08/12/25 15:45 08/19/25 03:48 1Toxaphene Tetrachloro-m-xylene (Surr) 66 20 - 139 08/19/25 03:48 1 MB MB
Surrogate
08/12/25 15:45
Dil FacPrepared AnalyzedQualifier Limits%Recovery
93 08/12/25 15:45 08/19/25 03:48 1DCB Decachlorobiphenyl (Surr) 20 - 154 Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-610581/2-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613447 Prep Batch: 610581
4,4'-DDD 0.0333 0.02783 ug/L 83 31 - 141
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
4,4'-DDE 0.0333 0.02485 ug/L 75 30 - 145
4,4'-DDT 0.0333 0.03480 ug/L 104 25 - 160
Eurofins Calscience

Page 38 of 60 ends

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
alpha-Chlordane 0.0333 0.02439 ug/L 73 45 - 140
alpha-BHC 0.0333 0.02233 ug/L 67 37 - 140
beta-BHC 0.0333 0.02356 ug/L 71 17 - 147
delta-BHC 0.0333 0.01849 ug/L 55 19 - 140
Dieldrin 0.0333 0.02663 ug/L 80 36 - 146
Endosulfan I 0.0333 0.02408 ug/L 72 45 - 153
Endosulfan II 0.0333 0.02713 ug/L 81 1 - 202
Endosulfan sulfate 0.0333 0.02837 ug/L 85 26 - 144
Endrin 0.0333 0.02730 ug/L 82 30 - 147
Endrin aldehyde 0.0333 0.02633 J ug/L 79 50 - 135
Endrin ketone 0.0333 0.03050 ug/L 92 50 - 135
gamma-Chlordane 0.0333 0.02279 ug/L 68 45 - 140
gamma-BHC (Lindane) 0.0333 0.02371 ug/L 71 32 - 140
Heptachlor 0.0333 0.02289 ug/L 69 34 - 140
Heptachlor epoxide 0.0333 0.02426 ug/L 73 37 - 142
Methoxychlor 0.0333 0.03817 ug/L 115 50 - 135
Tetrachloro-m-xylene (Surr) 20 - 139
Surrogate
69 LCS LCS
Qualifier Limits%Recovery
96DCB Decachlorobiphenyl (Surr) 20 - 154
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610581/3-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613447 Prep Batch: 610581
4,4'-DDD 0.0333 0.02395 ug/L 72 31 - 141 15 39
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
4,4'-DDE 0.0333 0.02043 ug/L 61 30 - 145 20 35
4,4'-DDT 0.0333 0.03073 ug/L 92 25 - 160 12 42
Aldrin 0.0333 0.01582 ug/L 47 42 - 140 31 35
alpha-Chlordane 0.0333 0.01961 ug/L 59 45 - 140 22 35
alpha-BHC 0.0333 0.01592 ug/L 48 37 - 140 34 36
beta-BHC 0.0333 0.01747 ug/L 52 17 - 147 30 44
delta-BHC 0.0333 0.01380 ug/L 41 19 - 140 29 52
Dieldrin 0.0333 0.02161 ug/L 65 36 - 146 21 49
Endosulfan I 0.0333 0.01959 ug/L 59 45 - 153 21 28
Endosulfan II 0.0333 0.02305 ug/L 69 1 - 202 16 53
Endosulfan sulfate 0.0333 0.02442 ug/L 73 26 - 144 15 38 Endrin 0.0333 0.02235 ug/L 67 30 - 147 20 48
Endrin aldehyde 0.0333 ND ug/L 66 50 - 135 17 30
Endrin ketone 0.0333 0.02650 ug/L 80 50 - 135 14 30
gamma-Chlordane 0.0333 0.01809 ug/L 54 45 - 140 23 35
gamma-BHC (Lindane) 0.0333 0.01708 ug/L 51 32 - 140 33 39 Heptachlor 0.0333 0.01605 ug/L 48 34 - 140 35 43
Heptachlor epoxide 0.0333 0.01869 ug/L 56 37 - 142 26 26 Methoxychlor 0.0333 0.03441 ug/L 103 50 - 135 10 30
Eurofins Calscience

Page 39 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 608.3 - Organochlorine Pesticides in W
ater (Continued)
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610581/3-A Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 613447 Prep Batch: 610581
Tetrachloro-m-xylene (Surr) 20 - 139
Surrogate
51 LCSD LCSD
Qualifier Limits%Recovery
94DCB Decachlorobiphenyl (Surr) 20 - 154
Method: 608.3 - Polychlorinated Biphenyls (PCBs) (GC)
Client Sample ID: Method BlankLab Sample ID: MB 570-610581/1-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613048 Prep Batch: 610581
RL MDL
Aroclor-1016 ND 0.10 0.044 ug/L 08/12/25 15:45 08/18/25 21:42 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.0440.10 ug/L 08/12/25 15:45 08/18/25 21:42 1Aroclor-1221 ND 0.0440.10 ug/L 08/12/25 15:45 08/18/25 21:42 1Aroclor-1232 ND 0.0440.10 ug/L 08/12/25 15:45 08/18/25 21:42 1Aroclor-1242 ND 0.0440.10 ug/L 08/12/25 15:45 08/18/25 21:42 1Aroclor-1248 ND 0.0520.10 ug/L 08/12/25 15:45 08/18/25 21:42 1Aroclor-1254 ND 0.0520.10 ug/L 08/12/25 15:45 08/18/25 21:42 1Aroclor-1260 Tetrachloro-m-xylene (Surr) 75 20 - 139 08/18/25 21:42 1 MB MB
Surrogate
08/12/25 15:45
Dil FacPrepared AnalyzedQualifier Limits%Recovery
100 08/12/25 15:45 08/18/25 21:42 1DCB Decachlorobiphenyl (Surr) 20 - 154 Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-610581/6-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613048 Prep Batch: 610581
Aroclor-1016 0.133 0.1339 ug/L 100 50 - 140
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Aroclor-1260 0.133 0.1626 ug/L 122 8 - 140
Tetrachloro-m-xylene (Surr) 20 - 139
Surrogate
77 LCS LCS
Qualifier Limits%Recovery
87DCB Decachlorobiphenyl (Surr) 20 - 154
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610581/7-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613048 Prep Batch: 610581
Aroclor-1016 0.133 0.1353 ug/L 101 50 - 140 1 36
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Aroclor-1260 0.133 0.1717 ug/L 129 8 - 140 5 38
Tetrachloro-m-xylene (Surr) 20 - 139
Surrogate
83 LCSD LCSD
Qualifier Limits%Recovery
108DCB Decachlorobiphenyl (Surr) 20 - 154
Eurofins Calscience

Page 40 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 200.7 Rev 4.4 - Metals (ICP)
Client Sample ID: Method BlankLab Sample ID: MB 570-610996/1-A Matrix: W
ater Prep Type: T
otal Recoverable
Analysis Batch: 611187 Prep Batch: 610996
RL MDL
Arsenic ND 0.100 0.00946 mg/L 08/13/25 10:32 08/13/25 14:59 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
ND 0.002730.0100 mg/L 08/13/25 10:32 08/13/25 14:59 1Barium ND 0.0004000.0100 mg/L 08/13/25 10:32 08/13/25 14:59 1Cadmium ND 0.001770.0500 mg/L 08/13/25 10:32 08/13/25 14:59 1Chromium ND 0.002500.0500 mg/L 08/13/25 10:32 08/13/25 14:59 1Copper ND 0.3400.500 mg/L 08/13/25 10:32 08/13/25 14:59 1Iron
ND 0.004520.0500 mg/L 08/13/25 10:32 08/13/25 14:59 1Lead ND 0.005300.0500 mg/L 08/13/25 10:32 08/13/25 14:59 1Manganese ND 0.004440.0500 mg/L 08/13/25 10:32 08/13/25 14:59 1Molybdenum ND 0.002400.0500 mg/L 08/13/25 10:32 08/13/25 14:59 1Nickel ND 0.008700.100 mg/L 08/13/25 10:32 08/13/25 14:59 1Selenium ND 0.007650.0100 mg/L 08/13/25 10:32 08/13/25 14:59 1Silver ND 0.006700.250 mg/L 08/13/25 10:32 08/13/25 14:59 1Zinc Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-610996/2-A Matrix: Water Prep Type: Total Recoverable
Analysis Batch: 611187 Prep Batch: 610996
Arsenic 0.500 0.5092 mg/L 102 85 - 115
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Barium 0.500 0.4903 mg/L 98 85 - 115
Cadmium 0.500 0.5068 mg/L 101 85 - 115
Chromium 0.500 0.5040 mg/L 101 85 - 115
Copper 0.500 0.4970 mg/L 99 85 - 115
Iron 0.500 0.4979 J mg/L 100 85 - 115
Lead 0.500 0.5142 mg/L 103 85 - 115
Manganese 0.500 0.5000 mg/L 100 85 - 115
Molybdenum 0.500 0.4994 mg/L 100 85 - 115
Nickel 0.500 0.5114 mg/L 102 85 - 115
Selenium 0.500 0.5246 mg/L 105 85 - 115
Silver 0.250 0.2479 mg/L 99 85 - 115
Zinc 0.500 0.5116 mg/L 102 85 - 115
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610996/3-A Matrix: Water Prep Type: Total Recoverable
Analysis Batch: 611187 Prep Batch: 610996
Arsenic 0.500 0.5174 mg/L 103 85 - 115 2 20
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Barium 0.500 0.5022 mg/L 100 85 - 115 2 20
Cadmium 0.500 0.5188 mg/L 104 85 - 115 2 20
Chromium 0.500 0.5133 mg/L 103 85 - 115 2 20
Copper 0.500 0.5081 mg/L 102 85 - 115 2 20
Iron 0.500 0.5094 mg/L 102 85 - 115 2 20
Lead 0.500 0.5240 mg/L 105 85 - 115 2 20
Manganese 0.500 0.5074 mg/L 101 85 - 115 1 20
Molybdenum 0.500 0.5074 mg/L 101 85 - 115 2 20
Nickel 0.500 0.5212 mg/L 104 85 - 115 2 20
Selenium 0.500 0.5310 mg/L 106 85 - 115 1 20
Eurofins Calscience

Page 41 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 200.7 Rev 4.4 - Metals (ICP) (Continued)
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610996/3-A Matrix: W
ater Prep Type: T
otal Recoverable
Analysis Batch: 611187 Prep Batch: 610996
Silver 0.250 0.2535 mg/L 101 85 - 115 2 20
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Zinc 0.500 0.5211 mg/L 104 85 - 115 2 20
Client Sample ID: MW-1Lab Sample ID: 570-242423-1 MS
Matrix: Water Prep Type: Total Recoverable
Analysis Batch: 611187 Prep Batch: 610996
Arsenic ND 0.500 0.5540 mg/L 111 80 - 120
Analyte
MS MS
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
Barium 0.0556 0.500 0.5638 mg/L 102 80 - 120
Cadmium ND 0.500 0.4970 mg/L 99 80 - 120
Chromium ND 0.500 0.5004 mg/L 100 80 - 120
Copper 0.00760 J 0.500 0.5470 mg/L 108 80 - 120
Iron 1.75 F1 0.500 2.603 F1 mg/L 171 80 - 120
Lead ND 0.500 0.4940 mg/L 99 80 - 120
Manganese 6.90 0.500 7.352 4 mg/L 90 80 - 120
Molybdenum ND 0.500 0.5158 mg/L 103 80 - 120
Nickel 0.0330 J 0.500 0.5236 mg/L 98 80 - 120
Selenium ND 0.500 0.5426 mg/L 109 80 - 120
Silver ND 0.250 0.2590 mg/L 104 80 - 120
Zinc 3.29 0.500 3.756 4 mg/L 94 80 - 120
Client Sample ID: MW-1Lab Sample ID: 570-242423-1 MSD
Matrix: Water Prep Type: Total Recoverable
Analysis Batch: 611187 Prep Batch: 610996
Arsenic ND 0.500 0.5374 mg/L 107 80 - 120 3 20
Analyte

MSD MSD
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
Barium 0.0556 0.500 0.5614 mg/L 101 80 - 120 0 20
Cadmium ND 0.500 0.4894 mg/L 98 80 - 120 2 20
Chromium ND 0.500 0.4954 mg/L 99 80 - 120 1 20
Copper 0.00760 J 0.500 0.5440 mg/L 107 80 - 120 1 20
Iron 1.75 F1 0.500 2.619 F1 mg/L 174 80 - 120 1 20
Lead ND 0.500 0.4890 mg/L 98 80 - 120 1 20
Manganese 6.90 0.500 7.493 4 mg/L 118 80 - 120 2 20
Molybdenum ND 0.500 0.5112 mg/L 102 80 - 120 1 20
Nickel 0.0330 J 0.500 0.5196 mg/L 97 80 - 120 1 20
Selenium ND 0.500 0.5292 mg/L 106 80 - 120 3 20
Silver ND 0.250 0.2584 mg/L 103 80 - 120 0 20
Zinc 3.29 0.500 3.783 4 mg/L 99 80 - 120 1 20
Method: 245.1 - Mercury (CVAA)
Client Sample ID: Method BlankLab Sample ID: MB 570-610918/1-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 611040 Prep Batch: 610918
RL MDL
Mercury ND 0.000200 0.000124 mg/L 08/13/25 09:14 08/13/25 16:32 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
Eurofins Calscience

Page 42 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 245.1 - Mercury (CV
AA) (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-610918/2-A Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 611040 Prep Batch: 610918
Mercury 0.00800 0.008191 mg/L 102 85 - 115
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610918/3-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 611040 Prep Batch: 610918
Mercury 0.00800 0.008365 mg/L 105 85 - 115 2 10
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Client Sample ID: Matrix SpikeLab Sample ID: 380-165478-I-2-B MS Matrix: Water Prep Type: Total/NA
Analysis Batch: 611040 Prep Batch: 610918
Mercury ND 0.00800 0.008273 mg/L 103 85 - 115
Analyte
MS MS
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
Client Sample ID: Matrix Spike DuplicateLab Sample ID: 380-165478-I-2-C MSD Matrix: Water Prep Type: Total/NA
Analysis Batch: 611040 Prep Batch: 610918
Mercury ND 0.00800 0.008379 mg/L 105 85 - 115 1 10
Analyte

MSD MSD
DUnitResult Qualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
Method: 1664B - HEM and SGT-HEM
Client Sample ID: Method BlankLab Sample ID: MB 570-610997/1-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 611806 Prep Batch: 610997
RL MDL
HEM: Oil and Grease ND 1.00 0.510 mg/L 08/13/25 10:34 08/14/25 17:40 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-610997/2-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 611806 Prep Batch: 610997
HEM: Oil and Grease 40.0 34.90 mg/L 87 78 - 114
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-610997/3-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 611806 Prep Batch: 610997
HEM: Oil and Grease 40.0 33.90 mg/L 85 78 - 114 3 18
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Eurofins Calscience

Page 43 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: SM 2540C - Solids, T
otal Dissolved (TDS)
Client Sample ID: Method BlankLab Sample ID: MB 570-613725/1 Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 613725
RL MDL
Total Dissolved Solids ND 10.0 8.35 mg/L 08/19/25 11:36 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-613725/2 Matrix: Water Prep Type: Total/NA
Analysis Batch: 613725
Total Dissolved Solids 1000 964.0 mg/L 96 85 - 110
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-613725/3 Matrix: Water Prep Type: Total/NA
Analysis Batch: 613725
Total Dissolved Solids 1000 988.0 mg/L 99 85 - 110 2 10 Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Client Sample ID: MW-1Lab Sample ID: 570-242423-1 DU
Matrix: Water Prep Type: Total/NA
Analysis Batch: 613725
Total Dissolved Solids 8790 8760 mg/L 0.3 8
Analyte
DU DU
DUnitResult Qualifier
Sample
Result
Sample
Qualifier LimitRPD
RPD
Method: SM 2540D - Solids, Total Suspended (TSS)
Client Sample ID: Method BlankLab Sample ID: MB 570-612454/1 Matrix: Water Prep Type: Total/NA
Analysis Batch: 612454
RL MDL
Total Suspended Solids ND 1.00 0.800 mg/L 08/15/25 21:06 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-612454/2 Matrix: Water Prep Type: Total/NA
Analysis Batch: 612454
Total Suspended Solids 100 91.00 mg/L 91 77 - 116
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 570-612454/3 Matrix: Water Prep Type: Total/NA
Analysis Batch: 612454
Total Suspended Solids 100 95.00 mg/L 95 77 - 116 4 10
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
Eurofins Calscience

Page 44 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Sample Results
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: SM 2540D - Solids, T
otal Suspended (TSS) (Continued)
Client Sample ID: DuplicateLab Sample ID: 570-242433-B-1 DU Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 612454
Total Suspended Solids 980 1008 mg/L 3 10
Analyte
DU DU
DUnitResult Qualifier
Sample
Result
Sample
Qualifier LimitRPD
RPD
Method: SM 5210B - BOD, 5-Day
Client Sample ID: Method BlankLab Sample ID: USB 570-611124/1-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613292 Prep Batch: 611124
RL MDL
Biochemical Oxygen Demand ND 2.00 1.00 mg/L 08/13/25 14:10 08/13/25 14:37 1

USB USB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
Client Sample ID: Lab Control SampleLab Sample ID: LCS 570-611124/3-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 613292 Prep Batch: 611124
Biochemical Oxygen Demand 199 218.9 mg/L 110 84.6 - 115. 4 Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
Client Sample ID: DuplicateLab Sample ID: 380-165519-A-1-B DU Matrix: Water Prep Type: Total/NA
Analysis Batch: 613292 Prep Batch: 611124
Biochemical Oxygen Demand ND ND mg/L NC 25
Analyte
DU DU
DUnitResult Qualifier
Sample
Result
Sample
Qualifier LimitRPD
RPD
Eurofins Calscience

Page 45 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Association Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement

GC/MS VOA
Analysis Batch: 610861
Lab Sample ID Client Sample ID Prep T
ype Matrix Method Prep Batch
W
ater 624.1570-242423-1 MW-1 Total/NA
Water 624.1570-242423-2 MW-2 Total/NA
Water 624.1MB 570-610861/7 Method Blank Total/NA
Water 624.1LCS 570-610861/1003 Lab Control Sample Total/NA Water 624.1LCSD 570-610861/4 Lab Control Sample Dup Total/NA Analysis Batch: 613555
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 624.1570-242423-1 - RA MW-1 Total/NA
Water 624.1MB 570-613555/16 Method Blank Total/NA
Water 624.1LCS 570-613555/1012 Lab Control Sample Total/NA Water 624.1LCSD 570-613555/13 Lab Control Sample Dup Total/NA GC/MS Semi VOA
Prep Batch: 611589
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 625.1570-242423-1 MW-1 Total/NA
Water 625.1570-242423-2 MW-2 Total/NA
Water 625.1MB 570-611589/1-A Method Blank Total/NA
Water 625.1LCS 570-611589/2-A Lab Control Sample Total/NA Water 625.1LCSD 570-611589/3-A Lab Control Sample Dup Total/NA Water 625.1380-165934-A-1-A MS Matrix Spike Total/NA
Water 625.1380-165934-A-1-B MSD Matrix Spike Duplicate Total/NA Analysis Batch: 615762
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 625.1 SIM 611589570-242423-1 MW-1 Total/NA
Water 625.1 SIM 611589570-242423-2 MW-2 Total/NA
Water 625.1 SIM 611589MB 570-611589/1-A Method Blank Total/NA Water 625.1 SIM 611589LCS 570-611589/2-A Lab Control Sample Total/NA Water 625.1 SIM 611589LCSD 570-611589/3-A Lab Control Sample Dup Total/NA Water 625.1 SIM 611589380-165934-A-1-A MS Matrix Spike Total/NA Water 625.1 SIM 611589380-165934-A-1-B MSD Matrix Spike Duplicate Total/NA GC Semi VOA
Prep Batch: 610581
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 608570-242423-1 MW-1 Total/NA
Water 608570-242423-2 MW-2 Total/NA
Water 608MB 570-610581/1-A Method Blank Total/NA
Water 608LCS 570-610581/2-A Lab Control Sample Total/NA Water 608LCS 570-610581/6-A Lab Control Sample Total/NA Water 608LCSD 570-610581/3-A Lab Control Sample Dup Total/NA Water 608LCSD 570-610581/7-A Lab Control Sample Dup Total/NA Analysis Batch: 613048
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 608.3 610581570-242423-1 MW-1 Total/NA
Water 608.3 610581570-242423-2 MW-2 Total/NA
Water 608.3 610581MB 570-610581/1-A Method Blank Total/NA Eurofins Calscience

Page 46 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Association Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
GC Semi VOA
(Continued)
Analysis Batch: 613048 (Continued)
Lab Sample ID Client Sample ID Prep Type
Matrix Method Prep Batch
Water 608.3 610581LCS 570-610581/6-A Lab Control Sample Total/NA Water 608.3 610581LCSD 570-610581/7-A Lab Control Sample Dup Total/NA Analysis Batch: 613447
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 608.3 610581570-242423-1 MW-1 Total/NA
Water 608.3 610581570-242423-2 MW-2 Total/NA
Water 608.3 610581MB 570-610581/1-A Method Blank Total/NA Water 608.3 610581LCS 570-610581/2-A Lab Control Sample Total/NA Water 608.3 610581LCSD 570-610581/3-A Lab Control Sample Dup Total/NA Metals
Prep Batch: 610918
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 245.1570-242423-1 MW-1 Total/NA
Water 245.1570-242423-2 MW-2 Total/NA
Water 245.1MB 570-610918/1-A Method Blank Total/NA
Water 245.1LCS 570-610918/2-A Lab Control Sample Total/NA Water 245.1LCSD 570-610918/3-A Lab Control Sample Dup Total/NA Water 245.1380-165478-I-2-B MS Matrix Spike Total/NA
Water 245.1380-165478-I-2-C MSD Matrix Spike Duplicate Total/NA Prep Batch: 610996
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 200.7570-242423-1 MW-1 Total Recoverable
Water 200.7570-242423-2 MW-2 Total Recoverable
Water 200.7MB 570-610996/1-A Method Blank Total Recoverable Water 200.7LCS 570-610996/2-A Lab Control Sample Total Recoverable Water 200.7LCSD 570-610996/3-A Lab Control Sample Dup Total Recoverable Water 200.7570-242423-1 MS MW-1 Total Recoverable
Water 200.7570-242423-1 MSD MW-1 Total Recoverable
Analysis Batch: 611040
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 245.1 610918570-242423-1 MW-1 Total/NA
Water 245.1 610918570-242423-2 MW-2 Total/NA
Water 245.1 610918MB 570-610918/1-A Method Blank Total/NA Water 245.1 610918LCS 570-610918/2-A Lab Control Sample Total/NA Water 245.1 610918LCSD 570-610918/3-A Lab Control Sample Dup Total/NA Water 245.1 610918380-165478-I-2-B MS Matrix Spike Total/NA Water 245.1 610918380-165478-I-2-C MSD Matrix Spike Duplicate Total/NA Analysis Batch: 611187
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 200.7 Rev 4.4 610996570-242423-1 MW-1 Total Recoverable Water 200.7 Rev 4.4 610996570-242423-2 MW-2 Total Recoverable Water 200.7 Rev 4.4 610996MB 570-610996/1-A Method Blank Total Recoverable Water 200.7 Rev 4.4 610996LCS 570-610996/2-A Lab Control Sample Total Recoverable Water 200.7 Rev 4.4 610996LCSD 570-610996/3-A Lab Control Sample Dup Total Recoverable Water 200.7 Rev 4.4 610996570-242423-1 MS MW-1 Total Recoverable Water 200.7 Rev 4.4 610996570-242423-1 MSD MW-1 Total Recoverable Eurofins Calscience

Page 47 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 QC Association Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
General Chemistry
Prep Batch: 610997
Lab Sample ID Client Sample ID Prep T
ype Matrix Method Prep Batch
W
ater 1664B570-242423-1 MW-1 Total/NA
Water 1664B570-242423-2 MW-2 Total/NA
Water 1664BMB 570-610997/1-A Method Blank Total/NA
Water 1664BLCS 570-610997/2-A Lab Control Sample Total/NA Water 1664BLCSD 570-610997/3-A Lab Control Sample Dup Total/NA Prep Batch: 611124
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water BOD Prep570-242423-1 MW-1 Total/NA
Water BOD Prep570-242423-2 MW-2 Total/NA
Water BOD PrepUSB 570-611124/1-A Method Blank Total/NA
Water BOD PrepLCS 570-611124/3-A Lab Control Sample Total/NA Water BOD Prep380-165519-A-1-B DU Duplicate Total/NA
Analysis Batch: 611806
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 1664B 610997570-242423-1 MW-1 Total/NA
Water 1664B 610997570-242423-2 MW-2 Total/NA
Water 1664B 610997MB 570-610997/1-A Method Blank Total/NA Water 1664B 610997LCS 570-610997/2-A Lab Control Sample Total/NA Water 1664B 610997LCSD 570-610997/3-A Lab Control Sample Dup Total/NA Analysis Batch: 612454
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water SM 2540D570-242423-1 MW-1 Total/NA
Water SM 2540D570-242423-2 MW-2 Total/NA
Water SM 2540DMB 570-612454/1 Method Blank Total/NA
Water SM 2540DLCS 570-612454/2 Lab Control Sample Total/NA Water SM 2540DLCSD 570-612454/3 Lab Control Sample Dup Total/NA Water SM 2540D570-242433-B-1 DU Duplicate Total/NA
Analysis Batch: 613292
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water SM 5210B 611124570-242423-1 MW-1 Total/NA
Water SM 5210B 611124570-242423-2 MW-2 Total/NA
Water SM 5210B 611124USB 570-611124/1-A Method Blank Total/NA Water SM 5210B 611124LCS 570-611124/3-A Lab Control Sample Total/NA Water SM 5210B 611124380-165519-A-1-B DU Duplicate Total/NA Analysis Batch: 613725
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water SM 2540C570-242423-1 MW-1 Total/NA
Water SM 2540C570-242423-2 MW-2 Total/NA
Water SM 2540CMB 570-613725/1 Method Blank Total/NA
Water SM 2540CLCS 570-613725/2 Lab Control Sample Total/NA Water SM 2540CLCSD 570-613725/3 Lab Control Sample Dup Total/NA Water SM 2540C570-242423-1 DU MW-1 Total/NA
Eurofins Calscience

Page 48 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Lab Chronicle
Client: Ninyo & Moore Job ID: 570-242423-1
Project/Site: Poinsettia Lane Sewer Replacement
Client Sample ID: MW-1 Lab Sample ID: 570-242423-1
Matrix: W
aterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
Analysis 624.1 U1MC08/13/25 13:301 EET
CAL 4610861
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Instrument ID: GCMSJJ
Analysis 624.1 RA 1 613555 08/19/25 16:53 VYF4 EET CAL 4Total/NA 10 mL 10 mL GCMSJJInstrument ID:

Prep 625.1 611589 08/14/25 11:43 S4EA EET CAL 4Total/NA 1033.2 mL 2 mL Analysis 625.1 SIM 1 615762 08/23/25 11:21 PQS1 EET CAL 4Total/NA 1 mL 1 mL GCMSJJJInstrument ID:

Prep 608 610581 08/13/25 11:16 H1SH EET CAL 4Total/NA 1037.9 mL 1 mL Analysis 608.3 1 613447 08/19/25 04:30 N5Y3 EET CAL 4Total/NA 1 mL 1 mL GC51Instrument ID:

Prep 608 610581 08/13/25 11:16 H1SH EET CAL 4Total/NA 1037.9 mL 1 mL Analysis 608.3 1 613048 08/18/25 21:05 P2HW EET CAL 4Total/NA 1 mL 1 mL GC81AInstrument ID:

Prep 200.7 610996 08/13/25 10:32 JP8N EET CAL 4Total Recoverable 50 mL 50 mL Analysis 200.7 Rev 4.4 2 611187 08/13/25 15:30 P1R EET CAL 4Total Recoverable ICP12Instrument ID:

Prep 245.1 610918 08/13/25 09:14 JP8N EET CAL 4Total/NA 25 mL 50 mL Analysis 245.1 1 611040 08/13/25 17:16 RL6Q EET CAL 4Total/NA HG9Instrument ID:

Prep 1664B 610997 08/13/25 10:37 S7HP EET CAL 4Total/NA 1047 mL 1000 mL Analysis 1664B 1 611806 08/14/25 13:40 UJ3K EET CAL 4Total/NA NO EQUIQInstrument ID:

Analysis SM 2540C 1 613725 08/19/25 11:36 S7PH EET CAL 4Total/NA 10 mL 100 mL NOEQUIPInstrument ID:

Analysis SM 2540D 1 612454 08/15/25 21:06 S7PH EET CAL 4Total/NA 500 mL 1000 mL NoEquipInstrument ID:

Prep BOD Prep 611124 08/13/25 14:10 U7UR EET CAL 4Total/NA Analysis SM 5210B 1 613292 08/13/25 15:39 U7UR EET CAL 4Total/NA 300 mL 300 mL BOD3Instrument ID:

Client Sample ID: MW-2 Lab Sample ID: 570-242423-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
Analysis 624.1 U1MC08/13/25 13:531 EET CAL 4610861
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 10 mL 10 mL
Instrument ID: GCMSJJ
Prep 625.1 611589 08/14/25 11:43 S4EA EET CAL 4Total/NA 1040.3 mL 2 mL Analysis 625.1 SIM 1 615762 08/23/25 11:42 PQS1 EET CAL 4Total/NA 1 mL 1 mL GCMSJJJInstrument ID:

Prep 608 610581 08/13/25 11:16 H1SH EET CAL 4Total/NA 1040.9 mL 1 mL Analysis 608.3 1 613447 08/19/25 04:44 N5Y3 EET CAL 4Total/NA 1 mL 1 mL GC51Instrument ID:

Eurofins Calscience

Page 49 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Lab Chronicle
Client: Ninyo & Moore Job ID: 570-242423-1
Project/Site: Poinsettia Lane Sewer Replacement
Client Sample ID: MW-2 Lab Sample ID: 570-242423-2
Matrix: W
aterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
Prep
608 H1SH08/13/25 11:16 EET CAL 4610581
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 1040.9 mL 1 mL
Analysis 608.3 1 613048 08/18/25 21:24 P2HW EET CAL 4Total/NA 1 mL 1 mL GC81AInstrument ID:

Prep 200.7 610996 08/13/25 10:32 JP8N EET CAL 4Total Recoverable 50 mL 50 mL Analysis 200.7 Rev 4.4 1 611187 08/13/25 15:41 P1R EET CAL 4Total Recoverable ICP12Instrument ID:

Prep 245.1 610918 08/13/25 09:14 JP8N EET CAL 4Total/NA 25 mL 50 mL Analysis 245.1 1 611040 08/13/25 17:18 RL6Q EET CAL 4Total/NA HG9Instrument ID:

Prep 1664B 610997 08/13/25 10:37 S7HP EET CAL 4Total/NA 1047 mL 1000 mL Analysis 1664B 1 611806 08/14/25 13:40 UJ3K EET CAL 4Total/NA NO EQUIQInstrument ID:

Analysis SM 2540C 1 613725 08/19/25 11:36 S7PH EET CAL 4Total/NA 20 mL 100 mL NOEQUIPInstrument ID:

Analysis SM 2540D 1 612454 08/15/25 21:06 S7PH EET CAL 4Total/NA 1000 mL 1000 mL NoEquipInstrument ID:

Prep BOD Prep 611124 08/13/25 14:10 U7UR EET CAL 4Total/NA Analysis SM 5210B 1 613292 08/13/25 15:52 U7UR EET CAL 4Total/NA 300 mL 300 mL BOD3Instrument ID:

Laboratory References:

EET
CAL 4 = Eurofins Calscience
Tustin, 2841 Dow Avenue, Tustin, CA 92780, TEL (714)895-5494 Eurofins Calscience

Page 50 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Accreditation/Certification Summary
Client: Ninyo & Moore Job ID: 570-242423-1
Project/Site: Poinsettia Lane Sewer Replacement
Laboratory: Eurofins Calscience
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.

Authority Program Identification Number Expiration Date California State 3082 07-31-26
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification.

Analysis Method
Prep Method Matrix Analyte
200.7 Rev 4.4 200.7 Water Barium
200.7 Rev 4.4 200.7 Water Chromium
200.7 Rev 4.4 200.7 Water Copper
200.7 Rev 4.4 200.7 Water Iron
200.7 Rev 4.4 200.7 Water Manganese
200.7 Rev 4.4 200.7 Water Nickel
200.7 Rev 4.4 200.7 Water Silver
200.7 Rev 4.4 200.7 Water Zinc
245.1 245.1 Water Mercury
608.3 608 Water alpha-Chlordane
608.3 608 Water Endrin ketone
608.3 608 Water gamma-Chlordane
624.1 Water 1,1,1,2-Tetrachloroethane
624.1 Water 1,1,2-Trichloro-1,2,2-trifluoroethane
624.1 Water 1,1-Dichloropropene
624.1 Water 1,2,3-Trichlorobenzene
624.1 Water 1,2,3-Trichloropropane
624.1 Water 1,2,4-Trichlorobenzene
624.1 Water 1,2,4-Trimethylbenzene
624.1 Water 1,2-Dibromo-3-Chloropropane
624.1 Water 1,2-Dibromoethane
624.1 Water 1,3,5-Trimethylbenzene
624.1 Water 1,3-Dichloropropane
624.1 Water 2,2-Dichloro-1,1,1-trifluoroethane
624.1 Water 2,2-Dichloropropane
624.1 Water 2-Chlorotoluene
624.1 Water 2-Hexanone
624.1 Water 4-Chlorotoluene
624.1 Water Bromobenzene
624.1 Water Bromochloromethane
624.1 Water Carbon disulfide
624.1 Water cis-1,2-Dichloroethene
624.1 Water Dibromomethane
624.1 Water Dichlorodifluoromethane
624.1 Water Di-isopropyl ether (DIPE)
624.1 Water Ethyl-t-butyl ether (ETBE)
624.1 Water Hexachloro-1,3-butadiene
624.1 Water Isopropanol
624.1 Water Isopropylbenzene
624.1 Water Methyl-t-Butyl Ether (MTBE)
624.1 Water Naphthalene
624.1 Water n-Butylbenzene
624.1 Water N-Propylbenzene
624.1 Water p-Isopropyltoluene
624.1 Water sec-Butylbenzene
Eurofins Calscience

Page 51 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Accreditation/Certification Summary
Client: Ninyo & Moore Job ID: 570-242423-1
Project/Site: Poinsettia Lane Sewer Replacement
Laboratory: Eurofins Calscience (Continued)
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.

Authority Program Identification Number Expiration Date The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification.

Analysis Method
Prep Method Matrix Analyte
624.1 Water Styrene
624.1 Water Tert-amyl-methyl ether (TAME)
624.1 Water tert-Butylbenzene
624.1 Water Vinyl acetate
SM 2540C Water Total Dissolved Solids
Eurofins Calscience

Page 52 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Method Summary
Job ID: 570-242423-1Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method Method Description LaboratoryProtocol
EP
A624.1 Volatile Organic Compounds (GC/MS) EET
CAL 4
EPA625.1 SIM Semivolatile Organic Compounds GC/MS (SIM) EET CAL 4 EPA608.3 Organochlorine Pesticides in Water EET CAL 4
EPA608.3 Polychlorinated Biphenyls (PCBs) (GC) EET CAL 4 EPA200.7 Rev 4.4 Metals (ICP) EET CAL 4
EPA245.1 Mercury (CVAA) EET CAL 4
1664B1664B HEM and SGT-HEM EET CAL 4
SMSM 2540C Solids, Total Dissolved (TDS) EET CAL 4
SMSM 2540D Solids, Total Suspended (TSS) EET CAL 4
SMSM 5210B BOD, 5-Day EET CAL 4
1664B1664B HEM and SGT-HEM (Aqueous) EET CAL 4
EPA200.7 Preparation, Total Recoverable Metals EET CAL 4 EPA245.1 Preparation, Mercury EET CAL 4
EPA608 Liquid-Liquid Extraction (Separatory Funnel) EET CAL 4 40CFR136A625.1 Liquid-Liquid Extraction EET CAL 4
SMBOD Prep Preparation, BOD EET CAL 4
Protocol References:
1664B = EP
A-821-98-002
40CFR136A
= "Methods for Organic Chemical Analysis of Municipal Industrial Wastewater", 40CFR, Part 136, Appendix A, October 26, 1984 and subsequent revisions.

EPA
= US Environmental Protection Agency
SM = "Standard Methods For The Examination Of Water
And Wastewater"
Laboratory References:

EET
CAL 4 = Eurofins Calscience
Tustin, 2841 Dow Avenue, Tustin, CA 92780, TEL (714)895-5494 Eurofins Calscience

Page 53 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Sample Summary
Client: Ninyo & Moore Job ID: 570-242423-1
Project/Site: Poinsettia Lane Sewer Replacement
Lab Sample ID Client Sample ID Matrix Collected Received Sample Origin 570-242423-1 MW-1 Water 08/12/25 09:10 08/12/25 17:00 California 570-242423-2
MW-2 Water 08/12/25 11:50 08/12/25 17:00 California
Eurofins Calscience

Page 54 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15

Page 55 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15

Page 56 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15

Page 57 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15

Page 58 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15

Page 59 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 Login Sample Receipt Checklist
Client: Ninyo & Moore Job Number: 570-242423-1
Login Number: 242423
Question Answer Comment
Creator: Ablian, Samantha
List Source: Eurofins Calscience
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey meter.

TrueThe cooler's custody seal, if present, is intact.

TrueSample custody seals, if present, are intact.

TrueThe cooler or samples do not appear to have been compromised or tampered with.

T
rueSamples were received on ice.

TrueCooler Temperature is acceptable.

TrueCooler Temperature is recorded.

TrueCOC is present.

TrueCOC is filled out in ink and legible.

TrueCOC is filled out with all pertinent information.

TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.

TrueSamples are received within Holding Time (excluding tests with immediate HTs)
TrueSample containers have legible labels.

TrueContainers are not broken or leaking.

TrueSample collection date/times are provided.

TrueAppropriate sample containers are used.

TrueSample bottles are completely filled.

TrueSample Preservation Verified.

TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs
TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4").

TrueMultiphasic samples are not present.

TrueSamples do not require splitting or compositing.

N/AResidual Chlorine Checked.

Eurofins Calscience
This receipt checklist is generated for all samples received in this Login. It may not be applicable to all Jobs associated with this Login.

Page 60 of 60 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 ANALYTICAL REPORT

PREPARED FOR
Attn: Accounts Payable
Ninyo & Moore
5710 Ruffin Road
San Diego, California 92123
Generated 9/2/2025 10:48:07 AM

JOB DESCRIPTION
Poinsettia Lane Sewer Replacement

JOB NUMBER
570-242423-2
See page two for job notes and contact information.

Tustin CA 92780
2841 Dow Avenue, Suite 100
Eurofins Calscience

Page 1 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Eurofins Calscience
Eurofins Calscience is a laboratory within Eurofins Environment Testing Southwest, LLC, a company within Eurofins Environment Testing Group of Companies Job Notes
This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

Authorization
Generated
9/2/2025 10:48:07 AM
Authorized for release by
Virendra Patel, Project Manager I
[email protected]
(714)895-5494

Page 2 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Table of Contents
Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Laboratory Job ID: 570-242423-2

Page 3 of 23 ends

Eurofins Calscience
9/2/2025
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Isotope Dilution Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Definitions/Glossary
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Qualifiers
Dioxin
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

Qualifier
q The reported result is the estimated maximum possible concentration of this analyte, quantitated using the theoretical ion ratio. The measured ion ratio does not meet qualitative identification criteria and indicates a possible interference.

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 dif
ference)
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

Page 4 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Job Narrative
570-242423-2
The analytical test results presented in this report meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page, unless otherwise noted. Data qualifiers and/or narrative comments are included to explain any exceptions, if applicable. Regulated compliance samples (e.g. SDWA, NPDES) must comply with associated agency requirements/permits.
· Matrix-specific batch QC (e.g., MS, MSD, SD) may not be reported when insufficient sample volume is available or when site- specific QC samples are not submitted. In such cases, a Laboratory Control Sample Duplicate (LCSD) may be analyzed to provide precision data for the batch.
· For samples analyzed using surrogate and/or isotope dilution analytes, any recoveries falling outside of established acceptance criteria are re-prepared and/or re-analyzed to confirm results, unless the deviation is due to sample dilution or otherwise explained in the case narrative.

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

Case Narrative
Client: Ninyo & Moore Job ID: 570-242423-2
Project: Poinsettia Lane Sewer Replacement
Eurofins Calscience
Job ID: 570-242423-2 Eurofins Calscience

Page 5 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Detection Summary
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Client Sample ID: MW-1 Lab Sample ID: 570-242423-1
No Detections.

Client Sample ID: MW-2 Lab Sample ID: 570-242423-2
2,3,7,8-TCDD
RL

9.6 pg/L
EDL

0.059
Analyte Result Qualifier Unit Dil Fac
D Method Prep Type
Total/NA1J q

0.59 1613B
Eurofins Calscience
This Detection Summary does not include radiochemical test results.

Page 6 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Client Sample Results
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: EPA 1613B - T
etra Chlorinated Dioxins & Furans ID HRGC/HRMS
Lab Sample ID: 570-242423-1Client Sample ID: MW-1
Matrix: WaterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
RL EDL
ND 9.5 0.067 pg/L 08/28/25 09:35 08/30/25 09:37 1
Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
2,3,7,8-TCDD
13C-2,3,7,8-TCDD 51 31 - 137 08/28/25 09:35 08/30/25 09:37 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery 37Cl4-2,3,7,8-TCDD 83 42 - 164 08/28/25 09:35 08/30/25 09:37 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 570-242423-2Client Sample ID: MW-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
RL EDL

0.59 J q 9.6 0.059 pg/L 08/28/25 09:35 08/30/25 10:26 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier
2,3,7,8-TCDD
13C-2,3,7,8-TCDD 59 31 - 137 08/28/25 09:35 08/30/25 10:26 1 Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery 37Cl4-2,3,7,8-TCDD 89 42 - 164 08/28/25 09:35 08/30/25 10:26 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery Eurofins Calscience

Page 7 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Surrogate Summary
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Prep Type: T
otal/NAMatrix: Water
Lab Sample ID Client Sample ID (42-164)
37TCDD
83570-242423-1
Percent Surrogate Recovery (Acceptance Limits)
MW-1
89570-242423-2 MW-2
85MB 320-872620/1-A Method Blank
Surrogate Legend
37TCDD = 37Cl4-2,3,7,8-TCDD
Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Prep Type: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (37-158)
37TCDD
77LCS 320-872620/2-A
Percent Surrogate Recovery (Acceptance Limits)
Lab Control Sample
78LCSD 320-872620/3-A Lab Control Sample Dup
Surrogate Legend
37TCDD = 37Cl4-2,3,7,8-TCDD
Eurofins Calscience

Page 8 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Isotope Dilution Summary
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Prep Type: T
otal/NAMatrix: Water
Lab Sample ID Client Sample ID (31-137)
TCDD
51570-242423-1
Percent Isotope Dilution Recovery (Acceptance Limits)
MW-1
59570-242423-2 MW-2
65MB 320-872620/1-A Method Blank
Surrogate Legend
TCDD = 13C-2,3,7,8-TCDD
Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Prep Type: Total/NAMatrix: W
ater
Lab Sample ID Client Sample ID (25-141)
TCDD
55LCS 320-872620/2-A
Percent Isotope Dilution Recovery (Acceptance Limits)
Lab Control Sample
57LCSD 320-872620/3-A Lab Control Sample Dup
Surrogate Legend
TCDD = 13C-2,3,7,8-TCDD
Eurofins Calscience

Page 9 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
QC Sample Results
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method: 1613B - T
etra Chlorinated Dioxins & Furans ID HRGC/HRMS
Client Sample ID: Method BlankLab Sample ID: MB 320-872620/1-A Matrix: Water Prep T
ype: Total/NA
Analysis Batch: 872980 Prep Batch: 872620
RL EDL
2,3,7,8-TCDD ND 10 1.2 pg/L 08/28/25 09:35 08/29/25 15:48 1 MB MB
Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier
13C-2,3,7,8-TCDD 65 31 - 137 08/29/25 15:48 1
MB MB
Isotope Dilution
08/28/25 09:35
Dil FacPrepared AnalyzedQualifier Limits%Recovery
37Cl4-2,3,7,8-TCDD 85 42 - 164 08/29/25 15:48 1
MB MB
Surrogate
08/28/25 09:35
Dil FacPrepared AnalyzedQualifier Limits%Recovery
Client Sample ID: Lab Control SampleLab Sample ID: LCS 320-872620/2-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 872980 Prep Batch: 872620
2,3,7,8-TCDD 200 246.9 pg/L 123 73 - 146
Analyte

LCS LCS
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits
13C-2,3,7,8-TCDD 25 - 141
Isotope Dilution
55 LCS LCS
Qualifier Limits%Recovery
37Cl4-2,3,7,8-TCDD 37 - 158
Surrogate
77 LCS LCS
Qualifier Limits%Recovery
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 320-872620/3-A Matrix: Water Prep Type: Total/NA
Analysis Batch: 873040 Prep Batch: 872620
2,3,7,8-TCDD 200 238.3 pg/L 119 73 - 146 4 50
Analyte

LCSD LCSD
DUnitResult Qualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
13C-2,3,7,8-TCDD 25 - 141
Isotope Dilution
57 LCSD LCSD
Qualifier Limits%Recovery
37Cl4-2,3,7,8-TCDD 37 - 158
Surrogate
78 LCSD LCSD
Qualifier Limits%Recovery
Eurofins Calscience

Page 10 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
QC Association Summary
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Specialty Organics
Prep Batch: 872620
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 1613B570-242423-1 MW-1 T
otal/NA
Water 1613B570-242423-2 MW-2 Total/NA
Water 1613BMB 320-872620/1-A Method Blank Total/NA
Water 1613BLCS 320-872620/2-A Lab Control Sample Total/NA Water 1613BLCSD 320-872620/3-A Lab Control Sample Dup Total/NA Analysis Batch: 872980
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 1613B 872620MB 320-872620/1-A Method Blank Total/NA Water 1613B 872620LCS 320-872620/2-A Lab Control Sample Total/NA Analysis Batch: 873040
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 1613B 872620LCSD 320-872620/3-A Lab Control Sample Dup Total/NA Analysis Batch: 873061
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 1613B 872620570-242423-1 MW-1 Total/NA
Water 1613B 872620570-242423-2 MW-2 Total/NA
Eurofins Calscience

Page 11 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Lab Chronicle
Client: Ninyo & Moore Job ID: 570-242423-2
Project/Site: Poinsettia Lane Sewer Replacement
Client Sample ID: MW-1 Lab Sample ID: 570-242423-1
Matrix: W
aterDate Collected: 08/12/25 09:10
Date Received: 08/12/25 17:00
Prep 1613B GSH08/28/25 09:35 EET
SAC872620
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 1054.1 mL 20.0 uL
Analysis 1613B 1 873061 08/30/25 09:37 CB EET SACTotal/NA 1 uL 1 uL DFS 2Instrument ID:

Client Sample ID: MW-2 Lab Sample ID: 570-242423-2
Matrix: WaterDate Collected: 08/12/25 11:50
Date Received: 08/12/25 17:00
Prep 1613B GSH08/28/25 09:35 EET SAC872620
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 1039.1 mL 20.0 uL
Analysis 1613B 1 873061 08/30/25 10:26 CB EET SACTotal/NA 1 uL 1 uL DFS 2Instrument ID:

Laboratory References:

EET
SAC = Eurofins Sacramento, 880 Riverside Parkway, West Sacramento, CA 95605, TEL (916)373-5600
Eurofins Calscience

Page 12 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Accreditation/Certification Summary
Client: Ninyo & Moore Job ID: 570-242423-2
Project/Site: Poinsettia Lane Sewer Replacement
Laboratory: Eurofins Sacramento
All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report.

Authority Program Identification Number Expiration Date Alaska State CA00044 06-30-26
Alaska (UST) State 17-020 02-20-27
ANAB Dept. of Defense ELAP L2468 01-20-27
ANAB Dept. of Energy L2468.01 01-20-27
ANAB ISO/IEC 17025 L2468.03 01-20-27
Arizona State AZ0708 08-1
1-26
Arkansas DEQ State 88-0691 05-18-26
California State 2897 01-31-26
Colorado State CA00044 08-31-25
Florida NELAP E87570 06-30-26
Georgia State 4040 01-29-26
Illinois NELAP 200060 03-31-26
Kansas NELAP E-10375 10-31-25
Louisiana NELAP 01944 06-30-26
Louisiana (All) NELAP 01944 06-30-26
Maine State CA00004 04-14-26
Massachusetts State M-CA044 06-30-26
Michigan State 9947 01-29-26
Minnesota NELAP 2749448 12-31-25
Nevada State CA00044 08-31-25
New Jersey NELAP CA005 06-30-26
New Y
ork NELAP 11666 04-01-26
Ohio State 41252 01-29-26
Oregon NELAP 4040 01-29-26
Texas NELAP T104704399-23-17 05-31-26
US Fish & Wildlife US Federal Programs A22139 04-30-26
USDA US Federal Programs P330-18-00239 02-28-26
Utah NELAP CA000442023-16 02-28-26
Virginia NELAP 460278 03-14-26
Washington State C581 05-05-26
West Virginia (DW) State 9930C 02-01-26
West Virginia DEP State 422 03-28-26
Wisconsin State 998204680 08-31-25
Wyoming State Program 8TMS-L 01-28-19 *
Eurofins Calscience
* Accreditation/Certification renewal pending - accreditation/certification considered valid.

Page 13 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Method Summary
Job ID: 570-242423-2Client: Ninyo & Moore
Project/Site: Poinsettia Lane Sewer Replacement
Method Method Description LaboratoryProtocol
EPA1613B Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS EET SAC
EPA1613B Separatory Funnel (L/L) Extraction with Soxhlet Extraction of Dioxin and Furans EET SAC Protocol References:

EPA = US Environmental Protection
Agency
Laboratory References:

EET SAC = Eurofins Sacramento, 880 Riverside Parkway, West Sacramento, CA 95605, TEL (916)373-5600
Eurofins Calscience

Page 14 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Sample Summary
Client: Ninyo & Moore Job ID: 570-242423-2
Project/Site: Poinsettia Lane Sewer Replacement
Lab Sample ID Client Sample ID Matrix Collected Received Sample Origin 570-242423-1 MW-1 Water 08/12/25 09:10 08/12/25 17:00 California 570-242423-2
MW-2 Water 08/12/25 11:50 08/12/25 17:00 California
Eurofins Calscience

Page 15 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

Page 16 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

Page 17 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

Page 18 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

Page 19 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

Page 20 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

Page 21 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Login Sample Receipt Checklist
Client: Ninyo & Moore Job Number: 570-242423-2
Login Number: 242423
Question Answer Comment
Creator: Ablian, Samantha
List Source: Eurofins Calscience
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey meter.

TrueThe cooler's custody seal, if present, is intact.

TrueSample custody seals, if present, are intact.

TrueThe cooler or samples do not appear to have been compromised or tampered with.

T
rueSamples were received on ice.

TrueCooler Temperature is acceptable.

TrueCooler Temperature is recorded.

TrueCOC is present.

TrueCOC is filled out in ink and legible.

TrueCOC is filled out with all pertinent information.

TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.

TrueSamples are received within Holding Time (excluding tests with immediate HTs)
TrueSample containers have legible labels.

TrueContainers are not broken or leaking.

TrueSample collection date/times are provided.

TrueAppropriate sample containers are used.

TrueSample bottles are completely filled.

TrueSample Preservation Verified.

TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs
TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4").

TrueMultiphasic samples are not present.

TrueSamples do not require splitting or compositing.

N/AResidual Chlorine Checked.

Eurofins Calscience
This receipt checklist is generated for all samples received in this Login. It may not be applicable to all Jobs associated with this Login.

Page 22 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
Login Sample Receipt Checklist
Client: Ninyo & Moore Job Number: 570-242423-2
Login Number: 242423
Question Answer Comment
Creator: Oropeza, Salvador
List Source: Eurofins Sacramento
List Creation: 08/18/25 12:07 PMList Number: 2
TrueRadioactivity wasn't checked or is </= background as measured by a survey meter.

TrueThe cooler's custody seal, if present, is intact. Seal N/ASample custody seals, if present, are intact.

TrueThe cooler or samples do not appear to have been compromised or tampered with.

T
rueSamples were received on ice.

TrueCooler Temperature is acceptable.

TrueCooler Temperature is recorded. 2.4C
TrueCOC is present.

TrueCOC is filled out in ink and legible.

TrueCOC is filled out with all pertinent information.

FalseIs the Field Sampler's name present on COC? Received project as a subcontract.

TrueThere are no discrepancies between the containers received and the COC.

TrueSamples are received within Holding Time (excluding tests with immediate HTs)
TrueSample containers have legible labels.

TrueContainers are not broken or leaking.

TrueSample collection date/times are provided.

TrueAppropriate sample containers are used.

TrueSample bottles are completely filled.

N/ASample Preservation Verified.

TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs
TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4").

TrueMultiphasic samples are not present.

TrueSamples do not require splitting or compositing.

N/AResidual Chlorine Checked.

Eurofins Calscience
This receipt checklist is generated for all samples received in this Login. It may not be applicable to all Jobs associated with this Login.

Page 23 of 23 ends

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16

NINYO & MOORE, A SOCOTEC COMPANY
Poinsettia Lane Sewer Replacement Project, Carlsbad, California | 110120001 | September 24, 2025 5710 Ruffin Road | San Diego, Califor nia 92123 | p. 8 58.576.1 000 ninyoandmoore.com
Appendix C
Poinsettia Lane Sewer Flow
Monitoring Technical Report
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ
0RQLWRULQJ6LWH
0+&
/RFDWLRQ
3RLQVHWWLD/Q:HVWRI4XDUW]:D\
6DQLWDU\6HZHU)ORZ0RQLWRULQJ
&DUVOEDG&DOLIRUQLD
9LFLQLW\0DS
0+&
'DWD6XPPDU\5HSRUW
)HEUXDU\0D\
0+&9 $3URMHFW1R
00+&
6LWH,QIRUPDWLRQ
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ
0+,'
0+&
0HDVXUHG3LSH'LDPHWHU
LQFKHV
$':)
PJG
3HDN0HDVXUHG)ORZ

PJG
)ORZ6NHWFK
6DWHOOLWH0DS
6WUHHW9LHZ
6DQLWDU\0DS
/RFDWLRQ
3RLQVHWWLD/Q:HVWRI4XDUW]
:D\
5LP(OHYDWLRQ
IHHW
3ODQ9LHZ
&RRUGLQDWHV
:1
([SHFWHG3LSH'LDPHWHU
LQFKHV
6HGLPHQW
1RQH
0+&
00+&
$GGLWLRQDO6LWH3KRWRV
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ
:HVW(IIOXHQW3LSH
0RQLWRUHG(DVW,QIOXHQW3LSH
0+&
00+&
3HULRG)ORZ6XPPDU\
'DLO\)ORZ7RWDOV
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

) OR Z
0 *DO

5DLQIDOO
LQGD\

5HDOWLPH+ROLGD\ 5DLQIDOO $':)

5HDOWLPH:HHNHQG

5HDOWLPH:HHNGD\
7RWDO5DLQIDOO
LQFKHV
$YJ'DLO\)ORZ

0*DO3HDN'DLO\)ORZ
0*DO0LQ'DLO\)ORZ

0*DO
0+&
00+&
)ORZ6XPPDU\
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

)HE

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

)O RZ
P J G

5DL Q I DO O
LQ K U

5DL Q )O RZ $' : )

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

$SU

7XH

$SU

:HG

)O RZ
P J G

5DL Q I DO O
LQ K U

3HULRG5DLQIDOO
LQFKHV 3HULRG$YJ)ORZ
PJG3HULRG3HDN)ORZ

PJG3HULRG0LQ)ORZ

PJG
_0+&
00+&
)ORZ6XPPDU\
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

$SU

7KX

$SU

)UL

$SU

6DW

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

$SU

7KX

$SU

)UL

$SU

6DW

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

$SU

7KX

$SU

)UL

$SU

6DW

)O RZ
P J G

5DL Q I DO O
LQ K U

5DL Q )O RZ $' : )

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

$SU

7KX

$SU

)UL

$SU

6DW

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

0D\

7KX

0D\

)UL

0D\

6DW

0D\

6XQ

0D\

0RQ

0D\

7XH

)O RZ
P J G

5DL Q I DO O
LQ K U

3HULRG5DLQIDOO
LQFKHV 3HULRG$YJ)ORZ
PJG3HULRG3HDN)ORZ
PJG3HULRG0LQ)ORZ
PJG
_0+&
00+&
$YHUDJH'U\:HDWKHU)ORZ+\GURJUDSKV
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

) ORZ
PJG

0 R Q7KXUV ) ULGD\ 6DWXUGD\ 6XQGD\
7LPHRI'D\
PJG
$':)

0+&
00+&
6LWH&DSDFLW\DQG6XUFKDUJH6XPPDU\
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

3HDN0HDVXUHG/HYHO

3HDNG'5DWLR

3LSH'LDPHWHU
LQFKHV
LQFKHV
5HDOWLPH)ORZ/HYHOVZLWK5DLQIDOO'DWDRYHU3HDN/HYHO3HULRG ' LDP HW HU
G'
G'

/HYHO
LQ

5DLQ
LQKU

0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&

00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR

$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO

LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ

PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV

WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ

PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO

LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ

PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ

PJG3HDN)ORZ
PJG0LQ)ORZ

PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO

LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ

PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\

ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\

ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO

LQ
$YJ9HORFLW\

ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO

LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&

$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ
0RQLWRULQJ6LWH
0+&
/RFDWLRQ
$FURVV6WUHHWRI/LIW6WDWLRQ3LRQVHWWLD/Q
6DQLWDU\6HZHU)ORZ0RQLWRULQJ
&DUVOEDG&DOLIRUQLD
9LFLQLW\0DS
0+&
'DWD6XPPDU\5HSRUW
)HEUXDU\0D\
0+&9 $3URMHFW1R
00+&
6LWH,QIRUPDWLRQ
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ
0+,'
0+&
0HDVXUHG3LSH'LDPHWHU
LQFKHV
$':)

PJG
3HDN0HDVXUHG)ORZ
PJG
)ORZ6NHWFK
6DWHOOLWH0DS
6WUHHW9LHZ
6DQLWDU\0DS
/RFDWLRQ
$FURVV6WUHHWRI/LIW6WDWLRQ
3LRQVHWWLD/Q
5LP(OHYDWLRQ
IHHW
3ODQ9LHZ
&RRUGLQDWHV
:1
([SHFWHG3LSH'LDPHWHU
LQFKHV
6HGLPHQW
1RQH
0+&
00+&
$GGLWLRQDO6LWH3KRWRV
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ
(DVW(IIOXHQW3LSH
0RQLWRUHG:HVW,QIOXHQW3LSH
0+&
00+&
3HULRG)ORZ6XPPDU\
'DLO\)ORZ7RWDOV
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

) OR Z
0 *DO

5DLQIDOO
LQGD\

5HDOWLPH+ROLGD\ 5DLQIDOO $':)

5HDOWLPH:HHNHQG

5HDOWLPH:HHNGD\
7RWDO5DLQIDOO
LQFKHV
$YJ'DLO\)ORZ

0*DO3HDN'DLO\)ORZ
0*DO0LQ'DLO\)ORZ

0*DO
0+&
00+&
)ORZ6XPPDU\
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

)HE

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

)O RZ
P J G

5DL Q I DO O
LQ K U

5DL Q )O RZ $' : )

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

0DU

7XH

0DU

:HG

0DU

7KX

0DU

)UL

0DU

6DW

0DU

6XQ

0DU

0RQ

$SU

7XH

$SU

:HG

)O RZ
P J G

5DL Q I DO O
LQ K U

3HULRG5DLQIDOO
LQFKHV 3HULRG$YJ)ORZ

PJG3HULRG3HDN)ORZ

PJG3HULRG0LQ)ORZ
PJG
_0+&
00+&
)ORZ6XPPDU\
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

$SU

7KX

$SU

)UL

$SU

6DW

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

$SU

7KX

$SU

)UL

$SU

6DW

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

$SU

7KX

$SU

)UL

$SU

6DW

)O RZ
P J G

5DL Q I DO O
LQ K U

5DL Q )O RZ $' : )

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

$SU

7KX

$SU

)UL

$SU

6DW

$SU

6XQ

$SU

0RQ

$SU

7XH

$SU

:HG

0D\

7KX

0D\

)UL

0D\

6DW

0D\

6XQ

0D\

0RQ

0D\

7XH

)O RZ
P J G

5DL Q I DO O
LQ K U

3HULRG5DLQIDOO
LQFKHV 3HULRG$YJ)ORZ
PJG3HULRG3HDN)ORZ
PJG3HULRG0LQ)ORZ

PJG
_0+&
00+&
$YHUDJH'U\:HDWKHU)ORZ+\GURJUDSKV
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

) ORZ
PJG

0 R Q7KXUV ) ULGD\ 6DWXUGD\ 6XQGD\
7LPHRI'D\

PJG
$':)

5DLQ
LQKU

0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&

00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR

$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\

ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ

PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV

WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ

PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ

PJG3HDN)ORZ

PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ

PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ

PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO

LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ

PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO

LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\
ISV0LQ9HORFLW\
ISV
$YJ)ORZ
PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&
00+&
:HHNO\/HYHO9HORFLW\DQG)ORZ+\GURJUDSKV
WR
$SSHQGL[$
)ORZ0RQLWRULQJ6LWH5HSRUWV
'DWD*UDSKV,QIRUPDWLRQ

6XQ 0RQ 7XH :HG 7KX )UL 6DW
/H YH O
L Q

/HY

9 H O R FL W\
ISV

9HO

)O RZ
P JG

5DLQ
LQKU

5DLQ )ORZ $':)7RWDO:HHNO\5DLQIDOO
LQFKHV
$YJ/HYHO
LQ3HDN/HYHO
LQ0LQ/HYHO
LQ
$YJ9HORFLW\
ISV3HDN9HORFLW\

ISV0LQ9HORFLW\
ISV
$YJ)ORZ

PJG3HDN)ORZ
PJG0LQ)ORZ
PJG
0+&

Appendix D
Tier II SWPPP Template

Appendix E
EWA Special Use Discharge Permit Template

ENCINA WASTEWATER AUTHORITY . .

A Public Agency

SERVING THE CITY OF VISTA, CITY OF CARLSBAD, BUENA SANITATION DISTRICT, VALLECITOS WATER DISTRICT,

LEUCADIA WASTEWATER DISTRICT AND CITY OF ENCINITAS
6200 Avenida Encinas
Carlsbad, CA 92011-1095
Telephone (760) 438-3941
FAX (760) 438-3861 (Plant)
(760) 431-7493 (Admin)

Thank you for contacting Encina Wastewater Authority to obtain information about the permitting process.

This letter will help to facilitate the permit process on behalf of Encina Wastewater Authority . Once the documentation has been received, reviewed, and approved by EWA, a site inspection will be scheduled.

Please note, prior to EWA’s issuance of the permit, the system mu st be demonstrated in the field and functional as per the specifications provided to EWA in the permit application. The standard turn-around time to issue a permit is approximately 4-6 weeks.

1. Provide a completed discharge permit application including all the supporting documentation listed below.

2. Liability Insurance.
a. "Encina Wastewater Authority and Membership Agencies" named as Additionally Insured in the Certificate of Liability Insurance.
b. Min $5,000,000 general liability AND $5,000,000 for all environme ntal impairment damages resulting from discharge; valid for the entire duration of the Permit.

3. Provide a sewer map that identifies all test pits, excavation pit locations, and names of each discharge point (Manhole) on the map.

4. Provide representative analytical sample results.

5. Provide a signed Indemnity Agreement from the participating agency Valid Entire Duration of the Permit.

6. Provide written plan approval from the participating agency for the proposed discharge flow rate, flow volume, discharge points, including any special condition requirements (wet weather discharge, Storm Water BMPs, manhole protection, etc.).

7. Provide a printout of Geotracker results with 1000’ search radius (map).

8. Provide details regarding the pretreatment system including the proposed maximum discharge flow rate and max hours pumped per day, the size of the hoses used, (model number of the pump and the max pumping rate, calculations for the retention time in the sedimentation tank, (baffles or no baffles in the tank), the model number and optimum flow ranges for the flow meter, documentation defining the length of straight pipe required before and after the meter for accurate measurements, flow restrictor information (if needed) and sample point details (Spigot).

9. Provide a Ground Water Discharge Sketch to include the details of excavation pump, high level shut off, sediment tank (baffles or not), discharge pump, high/low level shut off, treatment train, inverted U, straight pipe, flow meter, straight pipe, governor, sample point, etc.

Please contact me directly with questions or concerns.

Thank you,

Robert Grigg
Encina Wastewater Authority
Environmental Compliance
Source Control Manager
[email protected]

Office: 760-438-3941 ext: 3603
1 INDEMNITY AGREEMENT

THIS AGREEMENT is made on , by and between the MEMBER AGENCY DISTRICT OR CITY AND THE ENCINA WASTEWATER AUTHORITY (hereinafter "Licensors"), and _________________________________(hereinafter "Licensee"); Licensors and Licensee shall sometimes hereinafter be referred to as the "Parties".

R E C I T A L S

A. Licensors are the owner/operator of the sewer treatment plant located at 6200 Avenida Encinas in Carlsbad, California (the "Property") and the associated collection system;

B. Licensee now desires to discharge to the sanitary sewer syste m as described in the Special Use Discharge Application attached hereto and made a part hereof.

NOW THEREFORE, in consideration of the granting of the foregoing, the mutual premises, covenants, conditions and agreements hereinafter set forth, and other go od and valuable consideration, the receipt and adequacy of which are acknowledged, the Parties agree as follows:

1. Grant of License - Licensors hereby grant to Licensee, and its employees, representatives and contractors a non -exclusive license (h ereinafter the "License") to discharge to the sanitary sewer system as described in Recitals Paragraph B above. This License shall commence on ______________, and shall end on , unless the parties agree in writing to extend the term of the License. Prior to the expiration of the License, Licensee shall, at its sole cost and expense, (a) permanently close the connection to the sanitary sewer system and (b) remove all debris resulting from operations.

2. Compliance with Laws - Licensee shall conduct all operations, which are the subject of this License in compliance with all federal, state, and municipal statutes and ordinances, and with all regulations, orders, and directives of appropriate governmental agencies, as such statutes, ordinances, regulations, orders and directives now exist or provide.

3. Permits - Licensee, at no cost or expense to Licensors, shall be responsible for obtaining any and all governmental permits and approvals, which may be necessary for it to conduct any work or activities under this License Agreement.

4. Liens and Claims - Licensee will not permit any mechanics', vendor’s, or similar liens or claims to stand against the Licensors for labor or material furnished in connection with any work performed by Licensee under this License Agreement. Upon reasonable and timely notice o f any such lien or claim delivered to Licensee, Licensee may bond and contest the validity and the amount of such lien, but Licensee will immediately pay any judgment rendered, will pay all proper costs and charges, and will have the lien or claim released at its sole expense.

5. Cooperation - Licensee agrees to coordinate its activities with Licensors to minimize any impairment of access by customers or business invitees of Licensors to the Property.

6. Indemnification - Licensee agrees that it wil l indemnify and hold Licensors, their officers, directors, agents and employees, harmless from and against any claims, demands, liens,

2 actions, suits, ju dgments, losses, damages, attorney's fees, costs or expenses, and civil criminal or administrative penalties based upon or arising out of or claimed to have arisen out of alleged acts, errors or omissions of Licensee or its authorized contractors, employee s and agents in conducting the activities under this License Agreement, including the activities authorized under the Wastewater Discharge Permit issued by the Encina Wastewater Authority (EWA). This indemnification is expressly conditioned on the following:

(a) In the event Licensors identify any matter to which this indemnification may apply or receive a notice or claim from any third party of such matter, it shall immediately, and in every case within ninety (90) days of said notice or claim, notify Lic ensee in writing of such matter.

(b) Licensors shall cooperate with Licensee by allowing Licensee, its agents, representatives, contractors and consultants, prompt and ready access to the sanitary sewer system for the purpose of investigating any matter to which this indemnity may apply. Licensors shall provide Licensee with copies of all investigative reports, data or other information in any form which Licensors, its consultants, agents or attorneys may have pertaining to any such matter, on request of Licensee.

(c) Notwithstanding anything in this agreement to the contrary, in no event shall Licensee be liable for any special, indirect or consequential damages, including but not limited to claims for loss of use, rents, anticipated profit or business opportunity, or business interruption or mental or emotional distress or fear of injury or disease.

(d) This indemnification shall survive termination of this Agreement and expiration of the Permit and shall be effective until the expiration of any applicable statutes of limitations.

7. Compliance with Wastewater Discharge Permit - Licensee agrees to comply with the EWA Pretreatment Ordinance and the terms of the Wastewater Discharge Permit issued by the EWA. Licensee shall not add to the sanitary sewer any material not authorized under the Permit.

In the event Licensee adds any material to the sewer that causes a violation of EWA's NPDES Permits, as defined in the EWA Pretreatment Ordinance, Licensee shall indemnify Licensors in accordance with paragraph 6 above.

8. Severability - In case any one or more of the provisions contained in this Agreement shall be invalid, illegal or unenforceable in any respect, the validity, legality, and enforceability of the remaining provisions contained herein shall not in any way be affected or impaired thereby.

9. Notices - Any notice provided for herein or otherwise required to be given hereunder shall be deemed received when personally served or three (3) days after mailing by certified or registered United States mail, return receipt requested, postage prepaid, or by facsimile machine, with transmission and receipt confirmed, or by nationally recognized overnight delivery service, addressed as follows:

To Licensors: Encina Wastewater Authority District or City 6200 Avenida Encinas Address
Carlsbad, California 92011
3 To Licensee:

With Copies to:

The person and place to which notices are to be mailed may be changed by either party by providing written notice of same to the other.

10. Assignment Successors and Assigns - This Agreement may be assigned by either party and in and in such event shall b e binding upon and inure to the benefit of the Parties' respective representatives, successors and assigns.

11. Entire Agreement - This License Agreement represents the full, complete and entire agreement between the parties with respect to the subject ma tter hereof, and the rights and remedies of the Parties shall be solely and exclusively those herein contained, and in lieu of any remedies otherwise available at law or in equity.

12. Governing Law - This Agreement shall be construed and interpreted and governed by and in accordance with the local law of the State of California without reference to any choice of law, rules or policies which may refer the resolution of any dispute arising hereunder to the laws of any other jurisdiction.

13. Counterparts - This Agreement may be executed in one or more counterparts, each of which shall be deemed an original, and all of which, taken together, shall constitute one and the same Agreement.

IN WITNESS WHEREOF, the Parties have executed this License Agreement by their duly authorized representative on the date first above written.

LICENSORS: LICENSEE:

DISTRICT OR CITY &

ENCINA WASTEWATER AUTHORITY

By: By:

Name: Name:

Title: Title:

Date: Date: _

-12-

Table 1

2.13 BEST MANAGEMENT PRACTICES
EWA may develop BMPs by ordinance or in individual Wastewater Discharge Permits to implement Local Limits and the requirements of Section 2.1.

EPA APPROVED SAMPLING AND ANALYTICAL METHODS
Parameter Analytical Method1 Container2 Preservation Method3 Maximum Holding
Time4
BOD or CBOD SM5210B* P, G, FP COOL, 0‐6°C 48 HOURS
COD
HACH 8000*; EPA 410.3 &
410.4 REV 2.0; SM5220C &
5220D P, G, FP COOL, 0‐6°C, H2SO4 TO pH <2 28 DAYS
CN,
AMENABLE SM4500 ‐CN (G) P, G, FP
COOL, 0‐6°C, NaOH TO pH >
12, 0.6g ASCORBIC ACIDŦ 14 DAYS
CN, TOTAL
EPA 335.4 REV 1.0; SM4500‐
CN (F) & 4500‐CN(G) & 4500‐
CN (E) P, G, FP
COOL, 0‐6°C, NaOH TO pH >
12, 0.6g ASCORBIC ACIDŦ 14 DAYS
METALS: Cd,
Cr, Cu, Pb, Ni,
Ag
SM3111B or C, 3113B,
3120B; EPA 200.9 Rev 2.2,
200.7 Rev 4.4*, 200.8 Rev

5.4 P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Sb
SM3111B, 3113B, 3120B;
EPA 200.9 Rev 2.2, 200.7 Rev

4.4*, 200.8 Rev 5.4 P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
SM3114B, 3113B, 3120B;
EPA 200.9 Rev 2.2, 200.7 Rev HNO3 TO pH < 2 OR HNO3 TO METALS: As

4.4*, 200.8 Rev 5.4; SM3500‐
As (C or B) P, G, FP
3 p 3
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Be
SM3111D, 3113B, 3120B;
EPA 200.9 Rev 2.2, 200.7 Rev

4.4*, 200.8 Rev 5.4; SM3500‐
Be (D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: B
SM4500‐B (B), 3120B; EPA
200.7 Rev 4.4* P, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Cd
(optional) SM3500 Cd (D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Cr
(optional) SM3500 Cr (B or D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Cu
(optional) SM3500 Cu (B, C, D, or E) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
L:\SOURCE\Industry Handouts\EPA Approved Sampling and Analytical Methods_010312.xlsx EPA APPROVED SAMPLING AND ANALYTICAL METHODS
Parameter Analytical Method1 Container2 Preservation Method3 Maximum Holding
Time4
METALS: Fe
SM3111B or C, 3113B,
3120B; EPA 200.9 Rev 2.2,
200.7 Rev 4.4*; SM3500‐Fe
(B or D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Pb
(optional) SM3500 Pb (B or D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Hg
SM3112B, EPA 245.1 Rev

3.0*, 245.2, 245.7 Rev 2.0,
1631E P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 28 DAYS
METALS: Mn
SM3111B, 3113B, 3120B;
EPA 200.9 Rev 2.2, 200.7 Rev

4.4*, 200.8 Rev 5.4; SM3500‐
Mn (B or D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Mo
SM3111D, 3113B, 3120B;
EPA 200.7 Rev 4.4*, 200.8
Rev 54 P G FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHSMETALS: Mo Rev 5.4 P, G, FP PRIOR TO ANALYSIS 6 MONTHS METALS: Ni
(optional) SM3500 Ni (D) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Se
SM3113B, 3120B, 3114B;
EPA 200.9 Rev 2.2, 200.7 Rev

4.4*, 200.8 Rev 5.4 P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Tl
SM3111B, 3120B; EPA 279.2,
200.9 Rev 2.2, 200.7 Rev

4.4*, 200.8 Rev 5.4 P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
METALS: Zn
SM3111B or C, 3120B; EPA
289.2, 200.7 Rev 4.4*, 200.8
Rev 5.4; SM3500 Zn (B, E, or
F) P, G, FP
HNO3 TO pH < 2 OR HNO3 TO
pH < 2 AT LEAST 24 HOURS
PRIOR TO ANALYSIS 6 MONTHS
OIL & GREASE SM5520B; EPA 1664A G
COOL, 0‐6°C, HCl OR H2SO4 TO
pH < 22 8 DAYS
pH SM4500‐H+B*; EPA 150.2 P, G, FP NONE
ANALYZE WITHIN 15
MIN
TDS SM2540C* P, G, FP COOL, 0‐6°C7 DAYS
TSS SM2540D* P, G, FP COOL, 0‐6°C7 DAYS
TTO
EPA 624 & 625; EPA 1624
&1625 G
COOL, 0‐6°C, 624/1624 = HCl
TO pH < 2
624/1624 = 14 DAYS;
625/1625 = 7 DAYS
L:\SOURCE\Industry Handouts\EPA Approved Sampling and Analytical Methods_010312.xlsx EPA APPROVED SAMPLING AND ANALYTICAL METHODS
Parameter Analytical Method1 Container2 Preservation Method3 Maximum Holding
Time4
PHARM.

ORGANICS:

ACETONE
EPA 524.2; ASTM D3695,
D4763 G
COOL, 0‐6°C, 1666/524.2 =
HCl TO pH < 2
524.2 = 14 DAYS;
D3695 = 28 DAYS
PHARM.

ORGANICS:

METHYLENE
CHLORIDE EPA 502.2, 524.2 G
COOL, 0‐6°C, 1666/524.2 =
HCl TO pH < 2
502.2/524.2 = 14
DAYS
PHARM.

ORGANICS:

ETHYL
ACETATE EPA 1666; ASTM D3695 G
COOL, 0‐6°C, 1666/524.2 =
HCl TO pH < 2
1666 = 14 DA YS;
D3695 = 28 DAYS
PHARM.

ORGANICS: N‐
AMYL
ACETATE EPA 1666; ASTM D3695 G
COOL, 0‐6°C, 1666/524.2 =
HCl TO pH < 2
1666 = 14 DAYS;
D3695 = 28 DAYS
PHARM.

ORGANICS:

ISOPROPYL
ACETATE EPA 1666; ASTM D3695 G
COOL, 0‐6°C, 1666/524.2 =
HCl TO pH < 2
1666 = 14 DA YS;
D3695 = 28 DAYS
1 Refer to 40 CFR Part 136 for complete list of approved test procedures Refer to 40 CFR Part 136 for complete list of approved test procedures. 2 "P" is Polyethylene; "G" is Glass; "FP" is Fluoropolymer, PTFE, or Teflon. 3 Confirm with EPA certified lab the preservation and holding times for each specific method. 4 Holding time starts at the end of the composite period. * Methods currently performed by the Encina Wastewater Authority (EWA).

Ŧ Only added if residual chlorine is present
L:\SOURCE\Industry Handouts\EPA Approved Sampling and Analytical Methods_010312.xlsx Appendix F
CARB Fleet Compliance Certification
City Attorney Approved Version 12/14/2023

DISCLOSURE & SUBMITTAL REQUIREMENT

VEHICLE EMISSION DISCLOSURE & COMPLIANCE REQUIREMENT.

This Project is subject to the following regulation(s) by the California Air Resources Board. In bidding this Project, it shall be the Bidder’s sole responsibility to evaluate and include the cost of complying with all equipment and vehicle emission requirements under this Contract and applicable law in its Bid.

ADVANCED CLEAN FLEETS.

Vehicles with a Gross Vehicle Weight Rating (GVWR) greater than 8,500 lbs. and light -duty package delivery vehicles operated in California may be subject to the California Air Resources Board Advanced Clean Fleets regulations. Such vehicles may therefore be subject to requirements to reduce emissions of air pollutants. For more information, please visit the CARB Advanced Clean Fleets webpage at https://ww2.arb.ca.gov/our-work/programs/advanced-clean- fleets.

Bidders utilizing subcontractors shall provide a signed certificate of reported compliance for each listed subcontractor in the space provided in the Proposed Subcontractors form. Bidders, and its subcontractors must be registered as compliant fleet s at the time of bid submittal. In the event that a bidder, or its subcontractors, are exempt from this regulation, the bidder must submit a signed statement attesting to the fact, and to the reason(s) why it is not subject to the High Priority and Federal Fleets Regulation of Title 13, CCR Section 2015 through 2015.6 and the State and Local Government Fleets Regulation of Title 13, CCR Section 2013 through 2013.4.

Failure to certify as a compliant fleet or provide an attestation to an exemption, may render the bid non-responsive.

IN-USE OFF-ROAD DIESEL-FUELED FLEETS.

Any contractor utilizing off highway vehicles or equipment may be subject to compliance with the In-Use Off-Road Diesel-Fueled Fleets Regulation. For more information, please visit the CARB In-Use Off -Road Diesel -Fueled Fleets Regulation webpage at : https://ww2.arb.ca.gov/our- work/programs/use-road-diesel-fueled-fleets-regulation.

Bidders shall submit with its Bid a valid California Air Resources Board certificate of reported compliance. Bidders utilizing subcontractors shall submit the DOORS ID number for each listed subcontractor in the space provided in the Proposed Subcontractors form. Bidders are responsible for including a certificate of reported compliance for each identified subcon tractor.

Failure to submit valid certificates may render the bid non-responsive.

GENERAL COMPLIANCE WITH LAWS.

Contractor will keep fully informed of federal, state and local laws and ordinances and regulations which in any manner affect those employed by Contractor, or in any way affect the performance of the Services by Contractor. Contractor will at all times observe and comply with these laws, ordinances, and regulations and will be responsible for the compliance of Contractor's services with all applicable laws, ordinances and regulations.

Contractor will be aware of the requirements of the Immigration Reform and Control Act of 1986 and will comply with those requirements, including, but not limited to, verifying the eligibility for employment of all agents, employees, subcontractors and consultants whose services are required by this Agreement.

City Attorney Approved Version 12/14/2023

Contractor is aware of the requirements of the emissions reduction regulations being mandated by the California Air Resources Board (“CARB”) and that it will comply with all applicable regulations before commencing the performance of the work and maintain compliance throughout the duration of this Agreement.

CALIFORNIA AIR RESOURCES BOARD.

The California Air Resources Board (“CARB”) implemented amendments to the In-Use Off-Road Diesel- Fueled Fleets Regulations (“Regulation”) which are effective on January 1, 2024, and apply broadly to all self-propelled off-road diesel vehicles 25 horsepower or greater and other forms of equipment used in California. A copy of the Regulation is available at:

https://ww2.arb.ca.gov/sites/default/files/barcu/regact/2022/off-roaddiesel/appa-1.pdf

Bidders are required to comply with all CARB and Regulation requirements, including, without limitation, all applicable sections of the Regulation, as codified in Title 13 of the California Code of Regulations section 2449 et seq. throughout the term of the Project. Bidders must provide, with their Bid, copies of Bidder’s and all listed subcontractors the most recent, valid Certificate of Reported Compliance (“CRC”) issued by CARB. Failure to provide valid CRCs as required herein may render the Bid non-responsive.

The City of Carlsbad is a Public Works Awarding Body, as that term is defined under Title 13 California Code of Regulations section 2449(c)(46). Accordingly, Bidders must submit, with their Bids, valid Certificates of Reported Compliance (“CRC”) for the Bidder’s fleet, and for the fleets of any listed subcontractors (including any applicable leased equipment or vehicles). Bidders must complete and submit the Fleet Compliance Certification, on the form provided. Failure to provide a CRC for the Bidder, and for all listed subcontractors, or failure to complete the Fleet Compliance Certification, may render the Bid non-responsive.

COMPLIANCE WITH CALIFORNIA AIR RESOURCES BOARD REGULATIONS.

Contractor shall comply, and shall ensure all subcontractors comply, with all applicable requirements of the most current version of the California Air Resources Board (“CARB”) regulations including, without limitation, all applicable terms of Title 13, California Code of Regulations Division 3, Chapter 9 and all pending amendments (“Regulation”).

Throughout the Project, and for three (3) years thereafter, Contractor shall make available for inspection and copying any and all documents or information associated with Contractor’s and subcontractors’ fleet including, without limitation, Certificates o f Reported Compliance (“CRC”), fuel/refueling records, maintenance records, emissions records, and any other information the Contractor is required to produce, keep or maintain pursuant to the Regulation upon two (2) calendar days’ notice from the City of Carlsbad.

Contractor shall be solely liable for any and all costs associated with complying with the Regulation as well as for any and all penalties, fines, damages, or costs associated with any and all violations, or failures to comply with the Regulation. Contractor shall defend, indemnify and hold harmless the City of Carlsbad , its officials (appointed and elected), officers, and employees from any claims, liabilities, costs, penalties or interest arising out of any failure or alleged failure to comply with the Regulation.

City Attorney Approved Version 12/14/2023
FLEET COMPLIANCE CERTIFICATION.

Bidder hereby acknowledges that they have reviewed the CARB’s policies, rules and regulations and are familiar with the requirements of Title 13, California Code of Regulations, Division 3, Chapter 9, effective on January 1, 2024 (the “Regulation”). Bidder hereby certifies, subject to the penalty of perjury, that the option checked below relating to the Bidder’s fleet, and/or that of their subcontractor(s) (“Fleet”) is true and correct:
□ The Fleet is subject to the requirements of the Regulation, and the appropriate Certificate(s) of Reported Compliance have been attached hereto.

□ The Fleet is exempt from the Regulation under Section 2449.1(f)(2), and a signed description of the subject vehicles, and reasoning for exemption has been attached hereto.

□ Bidder and/or their subcontractor is unable to procure R99 or R100 renewable diesel fuel as defined in the Regulation pursuant to Section 2449.1(f)(3). Bidder shall keep detailed records describing the normal refueling methods, their attempts to procure renewable diesel fuel and proof that shows they were not able to procure renewable diesel (i.e. , third party correspondence or vendor bids).

□ The Fleet is exempt from the requirements of the Regulation pursuant to Section 2449(i)(4) because this Project has been deemed an “emergency”, as that term is defined in Section 2449(c)(18). Bidder shall only operate the exempted vehicles in the emergency situation and records of the exempted vehicles must be maintained, pursuant to Section 2449(i)(4).

□ The Fleet does not fall under the Regulation or are otherwise exempt and a detailed reasoning is attached to this certification.

Name of Bidder:

Signature:

Name:

Title:

Date:

STRELLA
DE
M
AR
RD

QUAIL PLQUAIL PL

LOCATION MAP

EXHIBIT
$!Å
NOT TO
SCALE

SEWER LINE CAPACITY

IMPROVEMENTS

PROJECT SITE

POINSETTIA LANE

ALICANTE RD

EL FUERTE ST
CIP PROJECT NO.
5548 2

MICA RD

TITANITE PL

LAPIS RD

GEODE LN

LA GOLONDRINA ST

PLUMERIA DR

ASCOT AVE

HALITE PL

KEENELAND DR

PALMETTO DR

VERMARINE CT

CAYENNE LN

LA PALOMA ST

ALICANTE RDLARIMAR AVE

LAPIS RD

EL AGUILA LN

POINSETTIA LIFT

STATION
Exhibit 3
Nov. 18, 2025
Item #5 Page 10 of 11
3 5548-D

POINSETTIA LANE SEWER

IMPROVEMENTS
Docusign Envelope ID: 29AE5AA8-B8E7-44F0-8264-2C2C203E6B2E E

STRELLA
DE
M
AR
RD

QUAIL PLQUAIL PL

LOCATION MAP

EXHIBIT
$!Å
NOT TO
SCALE

SEWER LINE CAPACITY

IMPROVEMENTS

PROJECT SITE

POINSETTIA LANE

ALICANTE RD

EL FUERTE ST
CIP PROJECT NO.
5548 2

MICA RD

TITANITE PL

LAPIS RD

GEODE LN

LA GOLONDRINA ST

PLUMERIA DR

ASCOT AVE

HALITE PL

KEENELAND DR

PALMETTO DR

VERMARINE CT

CAYENNE LN

LA PALOMA ST

ALICANTE RDLARIMAR AVE

LAPIS RD

EL AGUILA LN

POINSETTIA LIFT

STATION
Nov. 18, 2025
Item #5 Page 11 of 11
3 PROJECT SITE
5503-26

BRESSI SEWER MANHOLE

REHABILITATION
Docusign Envelope ID: 29AE5AA8-B8E7-44F0-8264-2C2C203E6B2E

Carlsbad City CouncilNovember 18, 2025

Carlsbad City Council
November 18, 2025