Agenda, first session — Ione City Council, November 21, 2023

Agenda Item #F7 (1)
Castle Oak Golf Course
Groundwater Monitoring Report
Third Quarter 2023
R5-1993-0240-002
Prepared for
City of lone
October 13, 2023
Prepared by
DELLAVALLE™

LABORATORYINC
1910 W. McKinley Avenue, Suite 110 • Fresno, California 93728-1298 Phone (559) 233-6129 • (800) 228-9896 • Fax (559) 268-8174 Website: www.dellavallelab.com
Castle Oak Golf Course
Groundwater Monitoring Report
Third Quarter 2023
R5-1993-0240-002
Table of Contents
Cover Letter ................... .................1
Tables
Table 1 - Network Site Descriptions
Attachments
Attachment 1 - Groundwater Elevation and Analytical Results Discussion Attachment 2 - Groundwater Monitoring Network Measurements and Graphs Attachment 3 - Field Records
Attachment 4 - Historical Water Quality Data and Graphs Attachment 5 - Reports of Water Analysis (Monitoring Wells) DELLAVALLE™

LABORATORY INC
October 13, 2023
City of lone
Amy Gedney, Acting City Manager
1 East Main Street
lone, CA 95640
RE: Castle Oak Golf Course
Third Quarter 2023 Groundwater Monitoring Report
R5-1993-0240-002
Dear Ms. Gedney:

This report summarizes the 3rd Quarter 2023 groundwater monitoring and analytical sampling event associated with Monitoring and Reporting Program (MRP) R5-1993-0240- 002.

AUTHORIZATION
The services provided by Dellavalle Laboratory, Inc. (DLI), Provost and Pritchard Consulting Group, and Del Tech Geotechnical Support Services (Del-Tech) were authorized by the City of lone and Dellavalle Project Manager, Lisa Rubin.

CASTLE OAK GOLF COURSE GROUNDWATER MONITORING NETWORK
As of 14 August 2023, the Castle Oak Golf Course groundwater monitoring network consists of three (3) groundwater monitoring wells and three (3) piezometers (Table 1-Network Site Descriptions). Unable to access piezometer CO P-4 due to very tall weeds and grass.

Table 1. Network Site Descriptions
Monitoring Wells Monument Piezometers Monument
CO MW-1 Flush CO P-1 Post
CO MW-2 Post CO P-2 Post
CO MW-3 Post CO P-4 Post
1910 W. McKinley, Suite 110 • Fresno, CA 93728-1298 • (559) 233-6129 www.dellavallelab.com
1 Castle Oak Golf Course
Third Quarter 2023 Groundwater Monitoring Report
R5-1993-0240-002 October 13, 2023
As required by California Business and Professions Code Section 7835, groundwater monitoring site locations, potentiometric measurements, groundwater elevations, and analytical results summary discussions have been prepared by a Licensed California Geologist and are presented in Attachment 1 - Groundwater Elevation and Analytical Results Discussion. Groundwater elevations and depth to water measurements (DTW with historical graph trends are presented in Attachment 2 - Groundwater Monitoring Network Measurements and Graphs.

GROUNDWATER MONITORING & SAMPLING
Prior to purging and sampling, Del-Tech measured DTW in all monitoring wells and piezometers. DTW was measured from the north side and top edge of well casing. DTW measurements (ft) are subtracted from the depth of well (ft) to determine standing water column (SWC) measurements in feet. The SWC is multiplied by the gallons per foot of depth (0.1632 for 2-inch diameter well casing) to determine calculated purge volume. All well casings are 2-inch polyvinyl chloride.

Dedicated Waterra tubing and check-ball systems are installed at each well, and all monitoring wells were purged and sampled with an inertial pump. Each monitoring well was purged to remove standing water within the well casing that may not be representative of formation water. Purge water samples were monitored in the field for temperature, pH, electrical conductivity (EC), oxidation-reduction potential (ORP), turbidity, and dissolved oxygen (DO). All purged water was released to the ground.

Instrument calibration was carried out daily in the field prior to measuring purge parameters.

Field records for water sampling events are included in Attachment 3 - Field Records.

Groundwater samples were collected for laboratory analysis after a minimum of three well casing volumes of water had been removed and the field parameters for purge water had stabilized. During sampling, DTW measurements were taken and recorded for draw-down after each purge. The following target criteria for three consecutive measurements were used to define stabilization:
• +/- 0.2 for pH
• +/- 10% for EC
• +/- 2.0 degrees Celsius
• +/- 20mv for ORP
Samples were collected in the appropriate laboratory prepared containers, labeled, and placed directly into an ice cooled chest and delivered under chain-of-custody protocols by the project manager to DLI's analytical laboratory. Samples for metals analysis were filtered prior to preservation and digestion using a 0.45-micron filter. 1910 W. McKinley. Suite 110 • Fresno, CA 93728-1298 • (559) 233-6129 www.dellavallelab.com
2 Castle Oak Golf Course
Third Quarter 2023 Groundwater Monitoring Report
R5-1993-0240-002 October 13, 2023
As requested, groundwater samples were analyzed at DLI for pH, electrical conductivity (EC), total dissolved solids (IDS), Nitrate-N (NO-N), ammonia as nitrogen (NH4-N), dissolved iron (Fe), and dissolved manganese (Mn). Samples for total coliform organisms (TCO), dissolved arsenic (As), and Volatile Organic Carbons (VOCs), were contracted out to BSK Associates (BSK).

DLI's analytical laboratory is certified by the Environmental Laboratory Accreditation Program (Certificate No. 1595) for the analyses provided herein. BSK is certified by the Environmental Laboratory Accreditation Program (Certificate No. 1180) for the analyses provided herein.

Historical water quality trends and graphs are presented in Attachment 4 - Historical Water Quality Data and Graphs. Copies of the laboratory analytical reports for this quarter are included in Attachment 5 - Reports of Water Analysis (Monitoring Wells).

LIMITATIONS STATEMENT
This report has been reviewed by a Professional Geologist in the State of California. DLI's professional services were performed consistent with generally accepted environmental principles and practices in California at the time the services were performed. Data in this report, prior to 28 November 2022, was based on data collected and provided by others. No guarantee or warranty, expressed or implied, is made.

This Report was prepared for the sole use of Dischargers regulated under R5-1993-0240- 002, Provost & Pritchard Consulting Group, and involved regulatory agencies. It may not be used or relied upon by any other person(s) without the express written consent and authorization of the City of lone and DLI. If any errors are found in the information used for this report, the inferences and conclusions shall not be considered valid unless the changes or errors are reviewed by the supervising Professional Geologist and re-approved in writing.

Any questions regarding the content of this document should be directed to the DLI Project Manager or the City Manager for lone.

If you have any questions concerning this report, please do not hesitate to call me at (408) 667-7661 or e-mail inquiries to [email protected].

Thank you,
Asia Rubir
Lisa A. Rubin, CCA
Attachments
1910W. MAcKinly. Suite ww ww-fellavalelalb.co7-128- (558) 23-6129 3 This Page Left Intentionally Blank
Attachment 1
Groundwater Elevation and Analytical
Results Discussion
DELLAVALLE™

LABORATORY INC
1910 W. McKinley Avenue, Suite 110 • Fresno, California 93728-1298 Phone (559) 233-6129 • (800) 228-9896 • Fax (559) 268-8174 website: dellavallelab.com

PROVOST&PRITCHARD

CONSULTING GROUP
455 W Fir Ave • Clovis, CA 93611 • (559) 449-2700
www.provostandpritchard.com
October 30, 2023
Lisa Rubin, CCA
Dellavalle Laboratory, Inc.
1910 W. McKinley Avenue #110
Fresno, CA 93728
RE: Castle Oaks Golf Course, Groundwater Monitoring Report, Third Quarter 2023, Groundwater Elevation and Analytical Results Discussion
Dear Ms. Rubin:

This document was prepared by Provost & Pritchard Consulting Group (Provost & Pritchard) for Dellavalle Laboratory, Inc. (DLI) for the Castle Oaks Golf Course in lone, California, which is subject to Monitoring and Reporting Program (MRP) R5-93-0240-002. The following discussion is based on the information presented in the Castle Oak Golf Course, Groundwater Monitoring Report, Third Quarter 2023, R5-1993-0240 (report) prepared by DLI.

GROUNDWATER ELEVATION
Well locations and depth to water measurements for the third quarter 2023 groundwater sampling event at the Castle Oaks site are provided in Attachment 2 of the DLI report. Top of casing elevations were obtained from the previous consultant's work product, provided by the City of lone. Groundwater elevations were calculated and are shown on the enclosed Groundwater Elevation Map, prepared by a Provost & Pritchard Professional Geologist. The calculated groundwater gradient across the Castle Oaks site based on the contours for the sample date is approximately 0.004 feet per foot (ft/ft) to the southwest. According to the discussion by the previous consultant, groundwater gradient has been historically to the southwest at approximately 0.004 to 0.007 ft/ft and has been calculated by Provost & Pritchard as 0.004 ft/ft southwest since 4*h quarter 2022. Thus, this quarter's gradient is consistent with historical flow.

Based on hydrographs produced using historical groundwater elevations at the site, seasonal trends are not apparent in MW-1 and the remainder of wells are generally highest in the winter and lowest in the summer, though not consistently in a particular quarter. Groundwater elevation has overall been trending very slightly downward over time. This quarter groundwater levels in the monitoring wells decreased between 0.4 and

2.8 feet from the previous quarter. From the third quarter of 2022 to this quarter the groundwater levels increased between 0.2 and 3.8 feet in the monitoring wells. Two of the three piezometers were measured and had water levels 2.1 to 3.4 feet lower than the previous quarter and were dry in third quarter 2022.

ANALYTICAL RESULTS
Based on the laboratory report in Attachment 5 of the DLI report, this quarter ammonia, arsenic, iron, and volatile organic compounds (VOCs) were not detected in the groundwater samples analyzed. Total coliform bacteria (TCO) and was detected only in CO MW-3. The field pH ranged from 5.70 in CO MW-2, historically the lowest, to 6.84 in CO MW-1 which is often highest. Field electrical conductivity (EC) and total dissolved solids (TDS) had the lowest concentrations upgradient in CO MW-1 and highest in CO MW-2, which is consistent with historical spatial trends. Nitrate as nitrogen (NO3-N) had the highest concentration upgradient in CO MW-1, consistent with historical spatial trends. Manganese was highest in CO MW-3 and lowest in CO MW-2, within historic trends, but was higher than typical in CO MW-1. lppeng.com\pzdata\clients\Dellavalle-1020\102022001-lone WWTP & Castle Oak GW Consulting\600 Deliverables\Castle Oaks\2023 Q3\2023 Q3 CO Discussion.docx Engineering • Structural • Geostructural • Surveying • Planning • Environmental • GIS • Construction Services • Hydrogeology • Consulting Clovis • Visalia • Bakersfield • Modesto • Los Banos • Chico • Sacramento • Sonora • San Luis Obispo • Boise, ID Dellavalle Laboratory, Inc. October 30, 2023
Castle Oaks Golf Course, Groundwater Monitoring Report, Third Quarter 2023, Groundwater Elevation and Analytical Results Discussion Page 2 of 2 Job No. 1020-22-001
Based on the graphs in Attachment 4 of the DLI report, most constituent concentrations appear to be relatively consistent over time, with the following exceptions. NO3-N appears to be historically increasing in CO MW-1 and recently in CO MW-2 and -3. EC and TDS appear to be gradually increasing recently in CO MW- 3 and had a notable increase this quarter in CO MW-2. Iron appears to have decreased in CO MW-3 historically but has been consistent recently.

Groundwater limitations are not set for this site in the associated Waste Discharge Requirements and so concentrations are compared to respective primary or secondary maximum concentration limits (MCLs) identified in Title 22 of the California Code of Regulations. Based on the analyte concentrations in the table in Attachment 4 of the DLI report, secondary MCLs were exceeded for pH and EC in CO MW-2, TDS in CO MW-2 and MW-3, and for manganese in CO MW-1 and MW-3.

LIMITATIONS
This document has been prepared for the sole use of DLI, the City of lone, and involved regulatory agencies.

Any other person or entity without the express written consent of Provost & Pritchard Consulting Group may not rely upon this document.

Provost & Pritchard's professional services were performed consistent with generally accepted environmental principles and practices in California at the time the services were performed.

No assessment can eliminate uncertainty regarding the potential for recognized environmental conditions.

This document is intended to reduce, but not eliminate this uncertainty, recognizing reasonable limits of time and cost. Subsurface variations cannot be known, or entirely accounted for, despite exhaustive testing.

This document should not be regarded as a guarantee that no further recognized environmental conditions are present on or beneath the site, beyond that which could have been detected within the scope of work.

In developing this report, Provost & Pritchard has relied on information that was prepared or provided by others. Provost & Pritchard assumes that this information is accurate and correct, unless noted. Changes in existing conditions at the site due to time lapse, natural causes, or operations on adjoining properties, may deem the information inappropriate.

No guarantee or warranty, expressed or implied, is made.

Respectfully,
Bunglep Tachella
Darylyn Tachella, PG
Senior Geologist
Enclosure: Groundwater Elevation Map for 8/14/23
lIppeng.com\pzdata\clients\Dellavalle-1020\102022001-lone WWTP & Castle Oak GW Consulting\600 Deliverables|Castle Oaks\2023 03\2023 Q3 CO Discussion.docx ¡Total 19.201 0.000 19.201 Total
Count 0.000 Count
Average 0.619 0.000 0.619 Average
#259 Maximum 0.878 0.000 0.878 ! Maximum
390 <10
390 Minimum 0.484 0.000 0.484 : Minimum
10/31/2023 0.582 0,582 10/31/2023
8998 10/30/2023 0.571 0.571 10/30/2023
10/29/2023 0.484 0.484 10/29/2023
10/28/2023 0.577 0.577 10/28/2023
10/27/2023 0.530 0.53 10/27/2023
10/26/2023 0.674 0.674 10/26/2023
10/25/2023 0.600 0.600 10/25/2023
10/24/2023 0.579 0.579 10/24/2023
10/23/2023 0.575 0.575 10/23/2023

0.501 10/22/2023 0.522 0.522 10/22/2023
10/21/2023 0.618 0.618 10/21/2023
10/20/2023 0.593 0.593 10/20/2023
10/19/2023 0.525 0.525 10/19/2023
10/18/2023 0.608 0.608 10/18/2023
10 10/17/2023 0.593 0.593 10/17/2023
10/16/2023 0.486 0.486 10/16/2023
10/15/2023 0.576 0.576 10/15/2023

0.571 10/14/2023 0.597 0.597 10/14/2023

5.0 10/13/2023 0.565 0,565฿ 10/13/2023
10/12/2023 0.590 0.59 10/12/2023
10/11/2023 0.574 0.574 10/11/2023
10/10/2023 0.575 0.575 10/10/2023
<1.8 10/9/2023 0.581 0.581 10/9/2023
10/8/2023 0.514 0.514 10/8/2023
10/7/2023 0.630 0.630 10/7/2023
10/6/2023 0.636 0.636 10/6/2023

0.834 10/5/2023 0.859 0.859 10/5/2023
<10 25 7.3 <5.0 3.4 0.70 0.853 10/4/2023 0.878 0.878 10/4/2023 18 4.2 1.82 0.832 10/3/2023 0.855 0.855 10/3/2023
<1.8 3.3 0.86 0.840 10/2/2023 0.864 0,864 10/2/2023

2.9 1.53 0.762 10/1/2023 0.790 0.790 10/1/2023
(Maximum) (Махіти).

NA N/A 6.0 - 9.0 30 (45) 2.2 (23) N/A 10 N/A Limit, Average N/A N/A N/A Limit, Average Grab Grab Grab Grab Grab Grab (4-hr average) Recorder Sample Type Recorder Recorder Recorder Sample Type Calculated
Monthly Weekly Daily Daily Continuous Continuous Frequency [Continuous Continuous Continuous Frequency umhos/cm mg/l mg/l mg/L MPN/100 mL mg/L NTU MGD Units MGD MGD MGD conductivity kElter Efluent) Date Influent. Flow Flow Date Electrical Total Arsenic Nitrate (as N) Total Coliform BODS @ 20°C Chlorine Turbidity Daily Flow Combined ARSA CDCR Effluent Monitoring Influent Flow Monitoring
WDID: 5B030109001
WDRs Order No. R5-1993-0240
Castle Oaks Golf Course Tertiary Treatment Plant
OCTOBER 2023 Monthly Monitoring Report
Groundwater elevation (GWE) calculated from 210° CO MW-1 depth to water measured on 8/14/23. GWE: 270.46
262.5
257.

CO MW-3
GWE: 253.36'
255%*
5 238 Castle Oaks
CO P-2 Gradient
CO P-1 ~0.004 ft/ft CO MW-2
GWE: 245.15*
GWE: 248.80' GWE: 257.40'
MW-3A
CO P-4 GWE: 255.07
Not Measured
MW-2
GWE: 256.57'
MW-2A
GWE: 256.76' P2
GWE: 260.01*
MW-3
GWE: 251.51* MW-1A
GWE: 260.93'
WWTP
MW-4 P3
GWE: 254.15 GWE:254.56' Gradient
€ -0 003 ft/5
MW-08-4A
MW-4A MW-1 GWE: 264.12'
GWE: 254.67 GWE: 261.94'
MW-08-4B
P1 GWE: 264.09'
MW-5A GWE: 260.40*
GWE: 256.35'
P5B
MW-08-1 GWE: 256.40'
GWE: 251.94*
F00.

MW-08-2B
• Castle Oaks Golf Course GWE: 249.08'
lone WWTF
MW-08-2A MW-08-3
GWE: 258.18'
• Flow Direction GWE: 249.57
GW Elevation Contour Maxar, Microsoft
(dashed where inferred)
500 1,000 Groundwater Elevation Map PROVOST&
Feet lone WWTF & Castle Oaks Golf Course PRITCHARD
[B/30/2023 G Dellavalle-1020\102022001-lone WWTP & Castle Oak GW Consulfing1400 Gis(Map130_2023130 2023 apex Attachment 2
Groundwater Monitoring Network
Measurements and Graphs
DELLAVALLE™

LABORATORY INC
1910 W. McKinley Avenue, Suite 110 • Fresno, California 93728-1298 Phone (559) 233-6129 • (800) 228-9896 • Fax (559) 268-8174 website: dellavallelab.com
272.52 8.23 280.75 8/30/07 MWI
272.35 8.40 280.75 5/31/07 MWI
270.92 9.83 280.75 2/27/07 MWI
269.54 11.21 280.75 11/30/06 MW1
272.01 8.74 280.75 8/30/06 MWI
272.66 8.09 280.75 5/30/06 MWI
272.36 8.39 280.75 3/8/06 MW1
271.59 9.16 280.75 10/21/05 MW1
272.84 791 280.75 7/1/05 MWI
272.99 7.76 280.75 4/5/05 MWI
270.68 10.07 280.75 1/3/05 MWI
271.76 8.99 280.75 9/30/04 MWI
271.66 9.09 280.75 6/30/04 MWI
271.59 9.16 280.75 3/31/04 MWI
270.45 10.30 280.75 12/31/03 MWI
271.43 9.32 280.75 10/1/03 MWI
272.43 8.32 280.75 6/17/03 MWI
270.38 10.37 280.75 3/28/03 MWI
268.46 12.29 280.75 12/9/02 MWI
271.69 9.06 280.75 9/17/02 MWI
272.63 8.12 280.75 6/12/02 MWI
271.67 9.08 280.75 3/20/02 MWI
270.42 10.33 280.75 MWI 11/30/01
NTU mg/L umhs/cm std units deg C ft. msl ft. msl Units:

Metered Metered Metered Metered Metered Metered Measured Calculated Probe Surveyed Method Turbidity Oxygen EC Field pH Temp. gal. Elevation Water Elevation Sample ID Date Potention Dissolved Field Purged,
Water Mark
Oxidation/ Volume Ground Depth Survey
R5-1993-0240-002
City of lone
Castle Oaks Golf Course
Historical Groundwater Monitoring Data

LABORATORY INC
DELLAVALLE"
DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Volume Oxidation/
Mark Water Purged, Field Dissolved Reduction
Sample ID Date Elevation Water Elevation gal. Temp. Field pH EC Oxygen Potential Turbidity Method Surveyed Probe Calculated Measured Metered Metered Metered Metered Metered Metered Units: ft. msl ft. msl deg C std units umhs/cm mg/L NTU MWI T 11/30/07 280.75 11.69 269.06
MWI 6/30/08 280.75 8.50 272.25
MWI 9/30/08 280.75 13.61 267.14
MW1 11/30/08 280.75 12.92 267.83
MW1 12/31/08 280.75 12.56 268.19
MWI 3/12/09 280.75 8.89 271.86 7.0 18.0 6.80 565
MWI 6/17/09 380-75 8.33 272.42 5.0 20.9 6.45 640 5.06 - 15.9 -15.9 MWI 9/22/09 7.99 272.76 3.0 24.21 6.61 576 4.84 96.8 96.8 MWI 12/15/09 280.75 10.11 270.64 5.0 20.52 7.51 582 3.56 39.0 39.0 MWI 3/24/10 280.75 8.86 271.89 5.0 17.65 6.58 643 4.92 71.3 71.3 MWI 6/23/10 280.75 9.06 271.69 5.0 18.55 6.60 680 6.60 101.4 101.4 MWI 9/24/10 280.75 8.69 272.06 5.0 23.30 6.57 587 4.05 280.5 280.5 MW1 12/14/10 280.75 9.66 271.09 5.0 19.61 6.92 598 4.49 104.1 104.1 MW1 3/29/11 280.75 7.49 273.26 5.0 17.10 6.54 614 3.95 -136.8 -136.8 MWI 6/22/11 Bent closed, unable to sample
MWI 9/15/11 280.75 9.29 271.46 5.0 20.81 6.37 586 5.02 79.4 MWI 12/13/11 280.75 11.01 269.74 4.0 19.49 6.45 591 3.66 55.0 MW1 3/22/12 280.75 10.13 270.62 4.0 17.09 6.60 590 4.15 63.7 MW1 6/27/12 280.28 9.84 270.44 5.0 19.46 6.86 582 6.34 88.2 MWI 9/25/12 280.28 10.28 270.00 4.0 23.87 6.90 606 4.05 49.9 MWI 12/18/12 280.28 10.92 269.36 10.0 20.49 6.75 578 3.20 144.4 MW1 3/11/13 280.28 10.30 269.98 6.0 18.46 6.62 590 4.29 126.0 DELLAVALLE"

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Volume
Mark to Water Purged,
Sample ID Date Elevation Water Elevation Temp. Turbidity Method Surveyed Probe Calculated Measured Metered Metered Units: ft. msl ft. msl gal deg C NTU
MWIT 6/26/13 280.28 8.14 272.14 5.0 21.39
MWI 9/13/13 280.28 12.44 267.84 3.0 21.18
MWI 12/12/13 280.28 13.40 266.88 2.0 21.60
MWI 3/5/14 280.28 11.44 268.84 4.0 18.90
MWI 6/16/14 280.28 12.62 267.66 4.0 19.59
MWI 9/17/14 280.28 11.35 268.93 4.0 21.66
MWI 12/19/14 280.28 10.42 269.86 6.0 21.98
MWI 3/23/15 280.28 10.09 270.19 6.0 18.90
MWI 6/10/15 280.28 10.04 270.24 5.0 19.36
MWI 9/16/15 280.28 9.72 270.56 5.0 23.05
MWI 12/15/15 280.28 11.92 268.36 4.0 21.97
MWI 3/29/16 280.28 8.44 271.84 5.0 18.12
MWI 6/20/16 280.28 10.84 269.44 4.0 18.89
MWI 9/7/16 280.28 8.69 271.59 5.0 23.08
MWI 12/7/16 280.28 11.15 269.13 4.0 21.4
MWI 3/8/17 280.28 7.87 272.41 5.0 17.5
MWI 6/15/17 280.28 9.49 270.79 5.0 18.0
MWI 9/14/17 280.28 8.59 271.69 5.0 23.4
MWI 12/6/17 280.28 10.64 269.64 4.0 20.9
MWI 3/9/18 280.28 10.64 269.64 4.0 18.7
DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Volume Oxidation/
Mark Water Purged, Field Dissolved Reduction
Sample ID Date Elevation Water Elevation gal. Temp. Field pH Oxygen Potential Turbidity Method Surveyed Probe Calculated Measured Metered Metered Metered Metered Metered Metered Units: fi. msl ft. msl deg C std units umhs/cm mg/L NTU MWI 6/15/18 280.28 10.13 270.15 3.5 17.1 6.53 675 3.60 156 MWI 9/17/18 280.28 8.79 271.49 4,5 20.1 6.59 670 4.10 140 MWI 12/17/18 280.28 13.02 267.26 3.0 19.9 6.67 640 2.60 170 MWI 3/18/19 280.28 7.91 272.37 5.0 17.3 6.74 520 6.80 162 MWI 5/13/19 280.28 6.54 273.74 4.0 16.8 6.72 576 5.60 157 MWI 9/16/19 280.28 8.72 271.56 4.5 22.9 6.60 540 6.80 69 MWI 12/16/19 280.28 11.25 269.03 3.0 19.7 6.68 489 2.29 204 MW1 3/16/19 280.28 10.33 269.95 3.5 16.9 6.80 412 7.12 181 MWI 6/16/20 280.28 10.69 269.59 3.5 18.5 6.75 555 3.38 208 MWI 9/14/20 280.28 9.09 271.19 4.0 20.9 6.75 535 3.14 199 MWI 12/15/20 280.28 10.77 269.51 3.5 15.9 6.79 564 3.35 221 MWI 3/17/21 280.28 270.45 4.0 17.3 6.88 510 3.81 205
MWI 6/22/21 280.28 10.55 269.73 3.5 19.0 6.79 515 4.13 128 MW1 9/21/21 280.28 13.11 267.17 2.5 19.2 6.46 545 3.06 206 MWI 12/14/21 280.28 9.81 270.47 4.0 17.9 6.66 214 7.17 238 MWI 3/16/22 280.28 10.92 269.36 3.5 17.6 6.44 377 4.01 177 MWI 6/15/22 280.28 11.94 268.34 3.0 19.6 6.31 463 2.36 200 MWI 9/22/22 280.28 13.57 266.71 2.5 19.2 6.46 545 3.06 206 MWI 11/28/22 280.28 10.14 270.14 6.0 21.6 6.75 581 3.90 232 165 MWI 3/2/23 280.28 8.58 271.70 6.0 17.7 6.96 534 1.90 138 MWI 5/17/23 280.28 9.38 270.90 4.5 18.8 6.79 499 1.40 147 MWI 8/14/23 280.28 9.82 270.46 6.0 21.9 6.84 531 1.80 118 93 260.56 272.01 2/27/07 MW2
257.85 272.01 11/30/06 MW2
258.60 272.01 8/23/06
259.90 272.01 5/30/06
261.85 272.01 3/8/06
258.46 272.01 10/21/05
258.93 272.01 7/1/05
262.26 272.01 4/5/05
261.09 272.01 1/3/05
257.67 272.01 9/30/04
258.51 272.01 6/30/04
259.72 272.01 3/31/04
259.92 12/31/03
257.93 272.01 10/1/03
259.09 272.01 6/17/03
259.59 272.01 3/28/03
259.08 272.01 12/9/02
258.12 272.01 9/17/02
259.26 272.01 6/12/02
260.05 272.01 3/20/02
259.34 272.01 11/30/01 MW2
NTU Mv mg/L umhs/cm std units deg C gal ft. msl ft. msl Units:

Metered Metered Metered Metered Metered Metered Measured Calculated Probe Surveyed Method Turbidity Potential Oxygen EC Field pH Temp. gal. Elevation Water Elevation Date Reduction Dissolved Field Purged, Water Mark Sample
Oxidation/ Volume Ground Survey
R5-1993-0240-002
City of lone
Castle Oaks Golf Course
Historical Groundwater Monitoring Data

LABORATORY INC
DELLAVALLE™
DELLAVALLE®

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Ground Volume Oxidation/
Sample Mark Water Purged, Dissolved Reduction
ID Date Elevation Elevation Temp. Field pH Oxygen Potential Turbidity Method Surveyed Calculated Measured Metered Metered Metered Metered Metered Units: gal deg C std units umhs/cm mg/L MV NTU
5/31/07
8/30/07
11/30/07
6/30/08
9/30/08
11/30/08
12/31/08
3/12/09 7.0 16.4 6.20
6/17/09 10011011 8.0 17.6 6.02 1.63 -35.8
9/22/09 3.0 18.35 6.07 2.41 29.8
12/15/09 5.0 18.10 6.83 1.82 21.0
3/24/10 6.0 16.35 6.14 3.91 79.4
6/23/10 5.0 16.61 6.09 4.43 108.2
9/24/10 5.0 18.03 5.92 1.93 49.9
12/14/10 5.0 17.51 6.24 1.86 -63.3
3/29/11 8.0 16.32 5.95 2.43 -169.4
6/23/11 5.0 15.87 5.91 3.14 -49.4
9/15/11 5.0 18.08 6.01 1.36 -113.1
DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Ground Volume
Sample Mark Water Purged, Field
Date Elevation_ Elevation gal. Field pH EC Turbidity
Method Surveyed Calculated Measured Metered Metered Metered Units: ft. msi gal NTU
MW2 12/13/11 272.01 5.0
3/22/12 272.01 6.0
6/27/12 272.01 5.0
9/25/12 272.01 5.0
12/18/12 272.01 6.0
3/11/13 272.01 6.0
6/26/13 272.01 5.0
9/13/13 272.01 5.0
12/12/13 272.01 5.0
3/5/14 272.01 5.0
6/16/14 272.01 7.0
9/17/14 272.01 6.0
12/19/14 272.01 6.0
3/23/15 272.01 5.0
6/10/15 272.01 5.0
9/16/15 272.01 5.0
12/15/15 272.01 6.0
3/29/16 272.01 6.0
6/20/16 272.01 5.0
917/16 272.01 5.0
DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Ground Volume Oxidation/
Sample Mark Water Purged, Field Dissolved Reduction
ID Date Elevation Elevation Temp. Field pH EC Oxygen Potential Turbidity Method Surveyed Calculated Measured Metered Metered Metered Metered Metered Metered Units: gal deg C std units umhs/cm mg/L Mv NTU
MW2 12/7/16 5.0 18.3 5.75 0.42 2.5
MW2 3/8/17 7.0 15.9 5.72 1.67 200
MW2 6/15/17 6.0 16.2 5.60 0.60 180.2
MW2 9/14/17 5.0 18.4 5.80 1.22 174.4
MW2 12/6/17 5.0 18.7 5.76 EL02333 0.96 143.7
MW2 3/9/18 7.0 16.7 5.89 1.9 60
MW2 6/15/18 6.0 16.2 5.77 2.3 213
MW2 9/17/18 5.5 18.0 5.95 4.7 228
MW2 12/17/18 6.0 17.5 6.07 3.2 229
MW2 3/18/19 7.0 16.1 5.94 5.4 220
MW2 5/13/19 6.0 16.1 5.89 1,415 4.4 215
MW2 9/16/19 5.5 18.6 5.78 1,675 3.6 48
MW2 12/16/19 6.5 17.7 5.79 1,421 1.52 254
MW2 3/16/20 6.5 14.3 5.91 1,519 1.99 252
MW2 6/16/20 6.5 16.5 5.88 1,500 1.35 252
MW2 9/14/20 5.5 18.2 5.83 1,569 1.87 247
MW2 12/15/20 6.0 16.9 5.96 1,527 2.79 239
MW2 3/17/21 6.5 15.3 6.02 1,153 2.45 245
MW2 6/22/21 6.0 17.0 5.81 1,181 1.59 188
MW2 9/21/21 272.01 14.94 257.07 5.0 18.3 5.61 1,253 2.08 239 DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Volume Oxidation/
Sample Mark Water Purged, Field Dissolved Reduction
ID Date Elevation Water Elevation gal. Temp. Field pH EC Oxygen Potential Turbidity Method Surveyed Probe Calculated Measured Metered Metered Metered Metered Metered Metered Units: ft. msl ft. msl gal deg C std units umhs/cm mg/L NTU MW2 12/14/21 272.01 11.43 260.58 7.0 17.3 5.84 669 4.43 274 MW2 3/16/22 272.01 12.27 259.74 6.5 15.3 5.72 800 1.87 216 MW2 6/15/22 272.01 13.01 259.00 6.0 17.0 5.52 1,060 1.85 223 MW2 9/22122 272.01 14.80 257.21 5.0 18.3 5.61 1,253 2.68 239 MW2 11/28/22 272.01 14.75 257.26 6.0 18.3 6.30 1370 3.10 228 413 MW2 03/02/23 272.01 11.20 260.81 9.0 15.7 5.96 1327 2.30 157 293 MW2 05/17/23 272.01 13.06 258.95 6.0 16.0 5.89 1490 0.90 171 287 MW2 08/14/23 272.01 14.61 257.40 6.0 18.0 5.70 1924 1.60 199 254.57 10.29 264.86 11/30/07 MW3
253.7 11.16 264.86 8/30/07 MW3
254.33 10.53 264.86 5/31/07 MW3
256.69 8.17 264.86 2/27/07 MW3
254.35 10.51 264.86 11/30/06 MW3
253.93 10.93 264.86 8/23/06 MW3
256.02 8.84 264.86 5/24/06 MW3
257.32 7.54 264.86 3/8/06 MW3
254.36 10.50 264.86 10/21/05 MW3
255.09 9.77 264.86 7/1/05 MW3
258.14 6.72 264.86 4/5/05 MW3
255.96 8.90 264.86 1/3/05 MW3
253.45 11.41 264.86 9/30/04 MW3
254.12 10.74 264.86 6/30/04 MW3
255.60 9.26 264.86 3/31/04 MW3
255.28 9.58 264.86 12/31/03 MW3
253.67 11.19 264.86 10/1/03 MW3
254.49 10.37 264.86 6/17/03 MW3
254.99 9.87 264.86 3/28/03 MW3
254.60 10.26 264.86 12/9/02 MW3
253.74 11.12 264.86 9/17/02 MW3
254.32 10.54 264.86 6/12/02 MW3
256.00 8.86 264.86 3/20/02 MW3
255.00 9.86 264.86 11/30/01 MW3
NTU mg/L umhs/cm std units deg C gal fl. msl ft. msl Units:

Metered Metered Metered Metered Metered Metered Measured Calculated Probe Surveyed Method Turbidity Oxygen EC Field pH Temp. gal. Elevation Water Elevation Date ID Potential Dissolved Field Purged, Water Mark Sample
Oxidation/ Volume Ground Depth Survey
R5-1993-0240-002
City of lone
Castle Oaks Golf Course
Historical Groundwater Monitoring Data

LABORATORY INC
DELLAVALLE™
DELLAVALLE™

LABORATORY ING
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Volume Oxidation/
Sample Mark Water Purged, Field Dissolved Reduction
ID Date Elevation Water Elevation gal. Temp. Field pH EC Oxygen Potential Turbidity Method Surveyed Probe Calculated Measured Metered Metered Metered Metered Metered Metered Units: ft. msl ft. msl gal deg C std units umhs/cm mg/L NTU MW3 6/30/08 264.86 10.71 254.15
9/30/08 264.86 11.35 253.51
11/30/08 264.86 10.90 253.96
12/31/08 264.86 10.23 254.63
žİěĞİĚĚ 3/12/09 264.86 8.60 256.26 5.0 17.5 6.70 475
6/17/09 264.86 10.39 254.47 40.0 18.30 6.34 482 2.78 -27.1 9/22/09 264.86 11.00 253.86 3.0 18.19 6.58 490 2.88 -2.7 12/15/09 264.86 10.13 254.73 10.0 18.22 7.36 510 2.07 11.5 MW3 3/24/10 264.86 8.95 255.91 11.0 17.64 6.56 555 3.84 -6.1 MW3 6/23/10 264.86 10.03 254.83 10.0 17.79 6.53 543 3.78 63.7 MW3 9/24/10 264.86 11.19 253.67 9.0 18.08 6.44 494 2.14 -24.1 MW3 12/14/10 264.86 9.78 255.08 10.0 18.03 6.72 484 1.40 -28.8 MW3 3/29/111 264.86 4.23 260.63 13.0 17.47 6.41 505 2.88 - 130.9 MW3 6/23/11 264.86 9.53 255.33 11.0 16.63 6.34 523 1.51 - 18.7 MW3 9/15/11 264.86 10.62 254.24 10.0 17.39 6.60 515 1.11 -82 MW3 12/13/11 264.86 10.50 254.36 10.0 17.71 5.98 539 1.35 -17.6 MW3 3/22/12 264.86 9.24 255.62 11.0 16.84 6.01 531 1.66 8.7 MW3 6/27/12 264.86 10.91 253.95 10.0 16.91 6.12 567 1.83 45.7 MW3 9/25/12 264.86 11.26 253.60 10.0 17.60 6.23 587 2.74 109.3 MW3 12/18/12 264.86 9.96 254.90 11.0 17.80 6.51 542 1.55 14.5 MW3 3/11/13 264.86 10.33 254.53 10.0 17.04 6.38 566 3.35 140.5 MW3 6/26/13 264.86 11.30 253.56 10.0 17.11 5.42 543 2.24 208.2 MW3 9/13/13 264.86 11.82 253.04 9.0 17.60 6.07 600 2.99 90.7 MW3 12/12/13 264.86 11.73 253.13 9.0 17.55 6.41 544 1.52 74.4 DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Volume Oxidation/
Sample Mark Water Purged, Field Dissolved Reduction
Date Elevation Water Elevation gal. Temp. Field pH EC Oxygen Potential Turbidity Method Surveyed Probe Calculated Measured Metered Metered Metered Metered Metered Metered Units: ft. msl ft. msl deg C std units umhs/cm mg/L NTU MW3 3/5/14 264.86 9.61 255.25 11.0 17.29 6.81 591 2.54 68.3 MW3 6/16/14 264.86 11.26 253.60 12.0 17.69 6.62 5.47 57.8 MW3 9/17/14 264.86 12.61 252.25 9.0 17.87 6.44 0.09 2.7 MW3 12/19/14 264.86 9.41 255.45 11.0 17.94 6.57 550 0.67 162.2 MW3 3/23/15 264.86 9.79 255.07 8.0 17.28 6.35 606 0.08 41.5 MW3 6/10/15 264.86 10.45 254.41 10.0 17.08 6.37 571 0.17 71.3 MW3 9/16/15 264.86 12.62 252.24 9.0 17.79 6.44 597 1.27 -32.3 MW3 12/15/15 264.86 10.51 254.35 13.0 17.94 6.47 574 1.15 43.8 MW3 3/29/16 264.86 8.40 256.46 11.0 17.11 6.41 566 0.12 63.5 MW3 6/20/16 264.86 10.67 254.19 13.0 16.90 6.25 599 0.96 28.3 MW3 9/7/16 264.86 11.84 253.02 12.0 17.63 6.11 635 0.34 180.4 MW3 12/7/16 264.86 9.94 254.92 11.0 18.0 6.45 591 0.34 -118.3 MW3 3/7/17 264.86 6.45 258.41 7.0 16.7 6.38 544 0.16 83.7 MW3 6/15/17 264.86 9.78 255.08 20.0 16.2 6.40 612 2.91 86.1 MW3 9/14/17 264.86 11.44 253.42 10.0 17.3 6.35 630 1.44 28.6 MW3 12/6/17 264.86 10.26 254,60 10.0 18.0 6.41 631 0.81 79.4 MW3 3/9/18 264.86 9.92 254.94 9.0 174 6.58 797 1.4 36
MW3 6/15/18 264.86 10.32 254.54 9.0 16.8 6.52 893 2.0 118 MW3 9/17/18 264.86 11.39 253.47 8.5 17,3 6.59 913 5.0 131 MW3 12/17/18 264.86 10.45 254.41 9.0 18.0 6.51 830 1.4 124 MW3 3/18/19 264.86 7.60 257.26 10.5 17.6 6.51 620 2.5 159 MW3 5/13/19 264.86 9.60 255.26 9.5 17.4 6.50 740 1.9 126 MW3 9/16/19 264.86 !!.11 253.75 8,5 18.3 6.45 794 3.1 35 MW3 12/16/19 264.86 9.70 255.16 9.5 18.6 6.45 723 1.55 198 MW3 3/16/19 264.86 10.51 254.35 9.0 15.6 6.53 750 1.33 231 DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Depth Ground Volume
Sample Water Purged,
ID Date Water Elevation gal. Temp. Turbidity
Method Probe Calculated Measured Metered Metered
Units: ft. msl deg C NTU

11.02 253.84 8.5 18.0

12.35 252.51 8.0 18.7

12.99 251.87 8.5 16.5

9.86 255.00 9.0 17.2
0|1 111111112111|111 11.41 253.45 8.5 18

12.50 252.36 8.0 18.5 6.36 753 1.84 224

9.48 255.38 9.5 17.6 6.60 455 2.67 269

10.05 254.81 9.0 17.2 6.47 524 1.59 211

11.19 253.67 8.5 18.3 6.21 668 1.92 201

12.68 252.18 8.5 18.5 6.36 753 1.84 224

11.86 253.00 9.0 18.6 7.36 724 2.60 192 415

7.85 257.01 12.0 16.8 6.76 739 0.70 94 1000+

8.70 256.16 9.0 18.6 6.62 705 1.20 106 1000+

11.50 253.36 9.0 19.0 6.49 732 3.20 126 127
DELLAVALLE"

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Survey Depth Ground Survey Depth Ground Sample Mark to Water Sample Mark to Water Sample Mark to Water ID Date Elevation Water Elevation ID Date Elevation Water Elevation ID Date Elevation Water Elevation Method Surveyed Probe Calculated Method Surveyed Probe Calculated Method Surveyed Probe Calculated Units: f. msl ft ft. msl Units: ft. msl ft. msl Units: ft. msi A ft. mst P1 Latitude 38.3557 Longitude -120.9627 P2 Latitude 38.35629 Longitude -120.9663 P4 Latitude 38.35481 Longitude -120.9643 PI 4/4/07 264.80 13.20 251.60 P2 4/4/07 261.55 12.37 249.18 P4 4/4/07 264.41 14.81 249.60 PI 5/18/07 264.80 13.54 251.26 P2 5/18/07 261.55 12.80 248.75 P4 5/18/07 264.41 15.18 249.23 1/13/09 264.80 13.73 251.07 1/13/09 261.55 13.62 247 93 P4 1/13/09 264.41 15.46 248,95 3/11/09 264.80 12.47 252.33 3/11/09 261.55 12.08 249.47 P4 3/11/09 264.41 14.28 250.13 PI 9/22/09 264.80 14.67 250.13 P2 9/22/09 261.55 15.17 246.38 P4 9/22/09 264.41 16.58 247.83 PI 12/15/09 264.80 13.43 251.37 P2 12/15/09 261.55 13.66 247.89 P4 12/15/09 264.41 15.04 249.37 3/24/10 264.80 12.61 252.19 P2 3/24/10 261.55 1191 249.64 P4 3/24/10 264.41 14.39 250.02 PI 6/23/10 264.80 13.34 251.46 P2 6/23/10 261.55 12.65 248.90 P4 6/23/10 264.41 15.08 249.33 PI 9/24/10 264.80 14.44 250,36 P2 9/24/10 261.55 1435 247.20 P4 9/24/10 264.41 16.11 248.30 P1 12/13/10 264.80 13.09 251.71 P2 12/13/10 261.55 12.72 248.83 P4 12/13/10 264.41 14,74 249.67 3/29/11 264.80 8.05 256.75 P2 3/29/11 261.55 7.54 254 01 P4 3/29/11 264.41 10.68 253.73 6/22/11 264.80 13.04 251.76 P2 6/22/11 261.55 12.39 249.16 P4 6/22/11 264.41 15,05 249,36 P1 9/13/11 264.80 14.50 250.30 P2 9/13/11 261.55 14.39 247.16 P4 9/13/11 264.41 16.40 248.01 12/12/11 264.80 13.91 250.89 P2 12/12/11 261.55 13.40 248.15 P4 12/12/11 264.41 17.78 246.63 P1 3/20/12 264,80 14.29 25051 P2 3/20/12 261.55 12.54 249.01 P4 3/20/12 26441 14.53 249 88 PI 6/25/12 264.80 14.29 250.51 P2 6/25/12 261.55 13.71 247.84 P4 6/25/12 264.41 16.08 248.33 PI 9/25/12 264.80 15.02 249.78 P2 9/25/12 261.55 15.17 246.38 P4 9/25/12 264.41 16.88 247.53 P1 12/17/12 264.80 13.74 251.06 P2 12/17/12 261.55 13.51 248.04 P4 12/17/12 264.41 15.59 248.82 3/11/13 264.80 13.75 251.05 3/11/13 261.55 12.97 248.58 P4 3/11/13 264.41 15.50 248.91 Pl 6/26/13 264.80 14.87 249.93 P2 6/26/13 261.55 14.78 246.77 P4 6/26/13 264.41 16.62 247.79 P1 9/11/13 264.80 15.80 249.00 P2 9/11/13 261.55 16.03 245.52 P4 9/11/13 264.41 17.59 246.82 P1 12/10/13| 264.80 15.88 248.92 P2 12/10/13 261.55 16.11 245.44 P4 12/10/13 264.41 dry dry PI 3/4/14 264.80 13.84 250.96 P2 3/4/14 261.55 14.2 247.35 P4 3/4/14 264.41 15.93 248.48 6/16/14 264.80 15.04 249.76 P2 6/16/14 261.55 14.98 246.57 P4 6/16/14 264.41 16.79 247.62 P1 9/17/14 264.80 17.05 247.75 P2 9/17/14 261.55 dry dry P4 9/17/14 264.41 dry dry PI 12/17/14 264.80 14.24 250.56 P2 12/17/14 261.55 15.47 246.08 P4 12/17/14 264.41 16.34 248.07 PI 3/23/15 264.80 14.05 250.75 P2 3/23/15 261.55 13.43 248.12 P4 3/23/15 264.41 15.89 248.52 P1 6/10/15 264.80 14.56 250.24 P2 6/10/15 261.55 14.26 247.29 P4 6/10/15 264.41 16.54 247.87 P1 9/16/15 264.80 16.80 248.00 P2 9/16/15 261.55 16.89 244.66 P4 9/16/15 264.41 dry dry DELLAVALLE™

LABORATORY INC
Historical Groundwater Monitoring Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Survey Depth Ground Survey Depth Ground Survey Depth Ground Sample Mark to Water Sample Mark to Water Sample Mark to Water ID Date Elevation Water Elevation ID Date Elevation Water Elevation ID Date Elevation Water Elevation Method Surveyed Probe Calculated Method Surveyed Probe Calculated Method Surveyed Probe Calculated Units: ft. msl A ft. msl Units: ft. msl ft. msl Units: ft. msl A ft. msi PI 12/15/15 264.80 14.90 249.90 P2 12/15/15 261.55 15.94 245.61 P4 12/15/15 264.41 16.89 247.52 PL 3/29/16 264.80 12.76 252.04 P2 3/29/16 261.55 12.09 249.46 P4 3/29/16 264.41 14.74 249.67 P1 6/20/16 264.80 14.38 250.42 p2 6/20/16 261.55 14,18 247.37 P4 6/20/16 264.41 16.43 247.98 P1 9/7/16 264.80 15.64 249.16 P2 9/7/16 261.55 16.32 245.23 P4 9/7/16 264.41 17.66 246.75 PI 12/7/16 264.80 14.03 250.77 P2 12/7/16 261.55 14.16 247.39 P4 12/7/16 264.41 16.02 248.39 P! 3/8/17 264,80 10.37 254.43 P2 3/8/17 261.55 7.78 253.77 P4 3/8/17 264.41 12.41 252.00 P1 6/13/17 264.80 15.88 248.92 P2 6/13/17 261.55 13.34 248.21 P4 6/13/17 264.41 16.22 248.19 PI 9/12/17 264.80 15.56 249.24 P2 9/12/17 261.55 16.09 245.46 P4 9/12/17 264.41 17.72 246.69 12/4/17 264.80 14.72 250.08 P2 12/4/17 261.55 14.83 246.72 P4 12/4/17 264.41 16.96 247.45 3/9/18 264.80 14.04 250.76 p2 3/9/18 261.55 13.58 247.97 P4 3/9/18 264.41 16.29 248.12 6/14/18 264.80 14.57 250.23 P2 6/14/18 261.55 14.15 247.40 P4 6/14/18 264.41 15.97 248.44 PI 9/17/18 264.80 15.80 249,00 P2 9/17/18 261.55 16.55 245.00 P4 9/17/18 264.41 17.90 246.51 PI 12/17/18 264.80 15 01 249.79 P2 12/17/18 261.55 15.23 246.32 P4 12/17/18 264.41 17.29 247.12 3/18/19 264.80 11.74 253.06 P2 3/18/19 261.55 10.58 250.97 P4 3/18/19 264.41 14.34 250.07 S/10/19 264.80 13.70 251.1 P2 5/10/19 261.55 12.84 248.71 P4 5/10/19 264.41 16.10 248.31 PI 9/15/19 264.80 15.59 P2 9/15/19 261.55 16.18 245.37 P4 9/15/19 264.41 dry 12/15/19 264.80 14.30 P2 12/15/19 261.55 14.60 246.95 P4 12/15/19 264.41 70 247.71 P1 3/15/19 264. 80 14.23 P2 3/15/19 261.55 14.44 247.11 P4 3/15/19 264,41 87 24754 PI 6/14/20 264.80 14.89 P2 6/14/20 261.55 14.88 246.67 P4 6/14/20 264.41 33 247.08 PI 9/14/20 264.80 16.16 P2 9/14/20 261.55 16.35 245.20 P4 9/14/20| 264.41 dry P1 12/13/20 264.80 15.39 P2 12/13/20 261.55 13.62 247.93 P4 12/13/20 264.41 246.61 P1 3/16/21 264.80 14.38 P2 3/16/21 261.55 14.24 247.31 P4 3/16/21 | 264.41 247.60 6/20/21 264.80 15.00 249.80 P2 6/20/21 261.55 16.00 245.55 P4 6/20/21 264.41 dry dry 9/21/21 264.80 dry dry P2 9/21/21 261.55 dry dry P4 9/21/21 264.41 17.93 246.48 12/14/21|264.80 15.27 249.53 P2 12/14/21 261.55 16.13 245.42 P4 12/14/21 264.41 17.68 246.73 PI 3/16/22 264.80 14.60 250.20 P2 3/16/22 261.55 14.28 247.27 P4 3/16/22 264.41 17.03 247.38 P1 6/12/22 264.80 15.45 249.35 P2 6/12/22 261.55 15.56 245.99 P4 6/12/22 264.41 dry dry PI 9/24/22 264.80 dry dry P2 9/24/22 261.55 dry dry P4 9/24/22 264.41 dry dry 11/28/22 264.80 dry dry P2 11/28/22 261.55 dry dry P4 11/28/22 264.41 dry P! 3/2/23 264.80 12.59 252.21 P2 3/2/23 261.55 12.07 249.48 P4 3/2/23 264.41 14.95 249.46 P1 5/17/23 264.80 13.90 250.90 P2 5/17/23 261.55 12.97 248.58 P4 5/17/23 264.41 15.49 248.92 Unable to Unable to
PI 1 8/14/23 264.80 16.00 248.80 P2 8/14/23 261.55 16.40 245.15 P4 8/14/23| 264.41 access access DELLAVALLE™

LABORATORY INC
--MW-1 - MW-2
Castle Oak Golf Course MW-3 P-1
Groundwater Monitoring Network Hydrographs
-P-2 e-p-4
280.0
275.0
270.0
Groundwater elevation (MSL) 265.0
260.0 MAMMASANA
255.0
250.0
245.0
240.0
1-01 1-02
Note: P-4 was inaccessible.

Attachment 3
Field Records
DELLAVALLE™

LABORATORYINC
1910 W. McKinley Avenue, Suite 110 • Fresno, California 93728-1298 Phone (559) 233-6129 • (800) 228-9896 • Fax (559) 268-8174 website: dellavallelab.com
DELLAVALLE"

LABORATORY INC

MONITORING WELL FIELD LOG
PROJECT SUMMARY - CO MW 1

SAMPLING DATE PROJECT NAME PROJECT ADDRESS SITE CONTACT PROJECT MANAGER Castle Oak Golf Course
8/14/2023 lone, CA Kathy Stone Lisa Rubin
Monitoring Well Network

SITE OVERVIEW

MONUMENT DIAMETER OF DEPTH OF DEPTH OF DEPTH TO STANDING

LOCATION WELL CASING/GALLONS WELL PUMP WATER WATER COLUMN

CASING PER FOOT DEPTH (FT) (FT) (FT) (FT)
Lat: 38.363526
Flush/PVC 2 inches / 0.1632 17.21 15 9.82 7.39
Long: -120.950034

METHOD OVERVIEW

CALCULATED PURGE AND DEPTH TO WATER

SAMPLE ANALYSIS

PURGE VOLUME SAMPLING SAMPLER AT SAMPLING LAB ANALYSIS

TIME PERFORMED
(GALLON) METHOD TIME (FT)
Waterra Del-Tech See Chain of Dellavalle

1.21 10:32 9.90
Inertial Pump Antonio Morales Custody Laboratory, Inc.

FIELD SUMMARY
ACTUAL
PUMP
VOLUME PH EC TEMP O.R.P TURBIDITY DO

TIME RATE COLOR ODOR
PURGED (UNITS) (uS/CM) (CELSIUS) (MVOLTS) (N.T.U) (PPM) (GPM)
(GAL)
10:25 1 6.63 607 21.9 194 95 2.5
10:27 2 1 6.76 531 21.6 157 105 2.3
10:29 2 1 6.81 533 21.7 135 98 1.7
10:31 2 1 6.84 531 21.9 118 93 1.8 tan none
sampled

MONITORING WELL FIELD LOG
PROJECT SUMMARY - CO MW 2

SAMPLING DATE PROJECT NAME PROJECT ADDRESS SITE CONTACT PROJECT MANAGER Castle Oak Golf Course
8/14/2023 lone, CA Kathy Stone Lisa Rubin
Monitoring Well Network

SITE OVERVIEW

MONUMENT DIAMETER OF DEPTH OF DEPTH OF DEPTH TO

STANDING WATER

LOCATION WELL CASING/GALLONS WELL PUMP WATER

COLUMN (FT)

CASING PER FOOT DEPTH (FT) (FT) (FT)
Lat: 38.354154
Post/PVC 2 inches / 0.1632 24.83 22 14.61 10.22
Long: -120.954648

METHOD OVERVIEW

CALCULATED PURGE AND

SAMPLE DEPTH TO WATER AT ANALYSIS

PURGE VOLUME SAMPLING SAMPLER LAB ANALYSIS

TIME SAMPLING TIME (FT) PERFORMED
(GALLON) METHOD
Waterra Del-Tech See Chain of Dellavalle

1.67 10:01 15.50
Inertial Pump Antonio Morales Custody Laboratory, Inc.

FIELD SUMMARY
ACTUAL
PUMP
VOLUME PH EC TEMP O.R.P TURBIDITY DO

TIME RATE COLOR ODOR
PURGED (UNITS) (uS/CM) (CELSIUS) (MVOLTS) (N.T.U) (PPM) (GPM)
(GAL)
9:54 1 6.00 1910 18.2 222 23 1.0
9:56 2 5.73 1928 18.2 212 15 1.4
9:58 2 1 5.72 1920 18.0 204 11 1.7
10:00 2 1 5.70 1924 18.0 199 7 1.6 clear none
sampled

MONITORING WELL FIELD LOG
PROJECT SUMMARY - CO MW 3

SAMPLING DATE PROJECT NAME PROJECT ADDRESS SITE CONTACT PROJECT MANAGER 8/14/2023 Castle Oak Golf Course lone, CA
Kathy Stone Lisa Rubin
Monitoring Well Network

SITE OVERVIEW

MONUMENT DIAMETER OF DEPTH OF DEPTH OF DEPTH TO STANDING

LOCATION WELL CASING/GALLONS WELL PUMP WATER WATER COLUMN

CASING PER FOOT DEPTH (FT) (FT) (FT) (FT)
Lat: 38.356405
Post/PVC 2 inches / 0.1632 28.09 26 11.50 16.59
Long: -120.960409

METHOD OVERVIEW

CALCULATED PURGE AND DEPTH TO WATER

SAMPLE ANALYSIS

PURGE VOLUME SAMPLING SAMPLER AT SAMPLING TIME LAB ANALYSIS

TIME PERFORMED
(GALLON) METHOD (FT)
Waterra Del-Tech See Chain of Dellavalle

2.71 9:22 25.10
Inertial Pump Antonio Morales Custody Laboratory, Inc.

FIELD SUMMARY
ACTUAL

VOLUME PUMP EC
PH TEMP O.R.P TURBIDITY DO

TIME RATE COLOR ODOR
PURGED (UNITS) (uS/CM) (CELSIUS) (MVOLTS) (N.T.U) (PPM) (GPM)
(GAL)
9:12 1 7.00 815 19.6 127 16 3.5
9:15 1 6.52 772 18.7 130 106 2.8
9:18 1 6.48 736 18.9 130 120 3.3
9:21 3 1 6.49 732 19.0 126 127 3.2 Light brown none
sampled
NOTES

WELL INSPECTION REPORTS) WEATHER QUALITY CONTROL AND CONTAINMENT All measurements are made from the north side and
83-98 degrees top edge of the well casing.

Slow recharge in MW-3
Fahrenheit. Dedicated purge tubing and water purged to the Unable to access field for CO P-4.

Clear with winds 2-3 ground.
mph Pump cleaned as necessary.

INSTRUMENTATION
TYPE OF INSTRUMENTATION MANUFACTURER SERIAL NO.
6P MultiMeter Myron L Company 6223581
Turbidity Meter Oakton 98703
Dissolved Oxygen Meter Milwaukee 2290134991
D.T.W Meter Heron Instruments, Inc. I2FF2102146EC

CALIBRATIONS

STANDARD PRE-CALIBRATED

TYPE OF INSTRUMENT CALIBRATED READING

DATE MEASUREMENTS READING
4 units 4.01 4.00
pH Meter 8/14/23 7 units 6.80 7.00
10 units 10.01 10.00
Electrical Conductivity 8/14/23 1413 uS/cm 1416 1413
Turbidity 8/14/23 20 NTU 20 20
Dissolved Oxygen 8/14/23 100% 100 100
Note: Upon completing the initial readings of the instruments, the instruments are adjusted to the calibration standard solutions that are being used at the time and at the current ambient temperature.

Attachment 4
Historical Water Quality Data and Graphs
DELLAVALLE™

LABORATORYINC
1910 W. McKinley Avenue, Suite 110 • Fresno, California 93728-1298 Phone (559) 233-6129 • (800) 228-9896 • Fax (559) 268-8174 website: dellavallelab.com
DELLAVALLE*

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Fecal Total
Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N /Ammonia as N Dissolved Dissolved Dissolved Total Total Total ID Date (TCO) (FCO) (NO,-N) (NH,-N) EC (TDS) VoC Arsenic Iron Manganese Chloride Sodium Arsenic Iron Manganese TOC EPA 300.0 SM 4500 SM 4500- SM 2510 B SM 2540 CEPA 524.2 EPA 200.8 EPA 200.7 EPA 200.7 EPA EPA EPA EPA EPA 200.7 SM H+ 300.0 200.7 200.8 200.7 5310 B
Unts. MPN/100ml| MPN/100ml mg/L mg/L umhs/cm mg/L 4g/L mg/L mg/L mg/L mg/L mg/L mg/L mg/l mg/L

2.2 900-1600 0.010 0.05 0.010 0.3 0.05
MW111/30/01
MW1 3/20/02 ∞ 3.5
MWI 6/12/02 3.8
MW1 9/17/02 ND 0.5
MWI 12/9/02 ND 2.4
MW1 3/28/03 2.6
MW1 6/17/03 ND 8.9
MW1 10/1/03
MWI 12/31/03 ND ND
MWI 3/31/04 ND ND 6.2 041 0.02
MWI 6/30/04 ND 0.25 ND
MWI 9/30/04 ND ND 1.2 0.26 ND
MWI 1/3/05 ND 43 0.0036 11.0 0.18
MWI 4/5/05 ND 20.0 ND ND ND NM
MWI 7/1/05 ND 4.7 ND ND ND NM
MWI 10/21/05 ND 1.2 ND ND ND 1.3
MWI 3/8/06 8.0 ND ND ND 0.84
MWI 5/30/06 ND 1.2 ND 0.139 ND 1.4
MWI 8/30/06 ND ND 2.5 ND ND ND 0.68
MWI 12/8/06 ND ND 4.1 0.0048 4.6 0.17 0,39
MWI 3/8/07 26.9 ND ND ND 0.91
DELLAVALLE™

LABORATORY ING
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
RS-1993-0240-002
Total Fecal Total
Colifom Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N Ammonia as N Dissolved Dissolved Dissolved Total Total Total Total ID (TCO) (FCO) (NO,-N) (NH,-N) pH EC (TDS) VoC Arsenic Manganese Chloride So dium Arsenic Iron Manganese TOC Method/Analysis SM 9221B SM 9221E EPA 300.0 SM 4500 SM 4500 SM 2510 B SM2540 C EPA 524.2 EPA 200.8 EPA 200.7 EPA 200.7 EPA EPA EPA EPA EPA 200.7 H+ 300.0 200.7 200.8 200.7 5310 B
Units: MPN/100ml MPN/100ml mg/L mg/L units umhs/cm mg/L H8/L mg/L mg/l mg/L mg/l. mg/L mg/L mg/1. mg/L MCL 22 10 900-1600 0.010 0.3 0.05 0.010 0.05
MWI| 6/19/07 ND 5.6 ND ND ND 0.085 ND 0.72
MWI 9/27/07 ND 32 ND ND 36 ND ND ND 0.98
MW112/13/07 ND ND 4.4 ND 439 ND 0.0043 12.4 0,24 0.61
MWI 6/30/08 ND ND 5.8 ND 357 ND ND 34 ND 0.490 0.095 0.82 MWI 11/30/08 ND ND 5.2 ND 385 ND ND 0,055 13.60 0.205 0.62 MWI 12/31/08 ND ND 5.4 ND 374 ND ND 0.003 9.98 0.142 0.29 MWI 3/12/09 14 ND 7.6 ND 376 ND ND ND / 0.173 ND 0.50
MWI 6/17/09 ND ND 7.1 0.04 370 ND 0.024 0.63
MWI| 9/22/09 ND ND 5.7 0.025 340
MWI 12/15/09 ND ND 6.0 ND ND ND
MWI| 3/24/10 ND 6.9 0.049 380 0.076 0.0042
MWI 6/23/10 ND 6.3 380 ND 0.022 0.0038
MWI 9/24/10 280 ND 3.8 ND 420 ND 0.047 0.0030
MW1|12/14/10 2.0 5.0 ND ND ND 0.0013
3/29/11 11.0 0.059 ND 0.084 0.0019
MWI 6/22/11 Bent closed unable to sample
MW1 | 9/15/11 30 5.9 410 ND 0.0054 ND
MWI12/13/11 ND 5.7 ND 390 0.0089 0.0057
MWI 3/22/12 ND ND ND 0.0220 0.0011
MWI 6/27/12 8.0 ND 5.7 ND ND 0.0067
MW1 9125/12 ND 5.4 ND 370 ND ND 0.0031
DELLAVALLE™

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Fecal Total
Coliform Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N Ammonia as N Dissolved Dissolved Dissolved Total Total Total Date (TCO) (FCO) (NO,-N) (NH,-N) pH EC (TDS) voC Arsenic Iron Manganese Chloride Sodium Arsenic Iron Manganese Method/Analysis SM 9221B SM 9221 E EPA 300.0 SM 4500 SM 4500- EPA 200.7 EPA EPA EPA EPA SM H+ SM 2510 B SM 2540 C | EPA 524.2 EPA 200.8 EPA 200.7 200.7 200.8 200.7 EPA 200.7 5310 B 300.0
Units: MPN/100ml| MPN/100ml mg/L mg/1 units umhs/cm mg/L H82 mg/L. mg/1. mg/l mg/L mg/L mg/L mg/L mg/L mg/L MCL 2.2 2.2 10 900-1600 500 0.010 0.3 0.05 250 0.010 0.3 0.05 MW112/18/12 ND 5.6 ND
3/11/13 5.5 ND 0,039
6/26/13 54 0.025 ND 0.220 0.016
MWI 9/13/13 50 62 0.019 350 ND 0.520 0.099
MWI 12/12/13 4.0 63 0.061 360 ND 0.036 0.033
MWI 3/5/14 > 1600 0.029 260 ND 1,300 0.110
MWI 6/16/14 ND 7.1 ND 360 0.0130 ND 0.011
MWI 9/17/14 5.4 ND ND 0.088 0.0042
MWI 12/19/14 50 4.3 ND ND ND ND
MWI 3/23/15 ND 7.1 ND 420 ND
MWI 6/10/15 ND 6.9 ND ND ND ND
MWI 9/16/15 2.0 4.0 ND 380 0.00078 ND ND
MW112/15/15 5.0 ND 410 0.00043 ND ND
MWI 3/29/16 ND 14.0 ND 480 ND ND ND
MWI 6/20/16 1.8 7.3 0.025 420 0.00038 0.030 0.0040
MWI 9/7/16 2.0 6.7 ND 380 ND ND 0.010
MWI 12/7/16 ND 6.2 360 ND 0.140 0.011
MWI 3/8/17 20 19.0 410 ND ND 0.00025
MWI 6/15/17 ND 9.9 0.098 ND ND 0.00060
MWI 9/14/17 0.00099 0.00023

DELLAVALLE

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Fecal Total
Colifor Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N Ammonia as N Solids Dissolved Dissolved Dissolved Total Total Total ID Date (TCO) (FCO) (NO,-N) (NH,-N) EC (TDS) voC Arsenic Manganese Chloride Sodium Arsenic Iron Manganese TOC Method/ Analysis SM9221B SM9221E| EEPA 300.0 SM 4500 SM 4500- SM 2510 B SM 2540 C| EPA 524.2 EPA 200.8 EPA 200.7 EPA 200.7 EPA EPA EPA EPA EPA 200.7 H+ 300.0 200.7 200.8 200.7 5310 B
Units: MPN/100ml MPN/ 100ml mg/l mg/l. units umhs/cm mg/lL. Hg/l mg/L mg/l mg/L mg/L mg/L mg/L mg/L mg/L MCL 2.2 10 900-1600 0.010 0.3 0.05 0.010 0.05
MWI 12/6/17 2.0 7.1 0.028 360 ND ND 0.00042
MWI 3/9/18 7.9 0.024 360 0.00040 ND 0.0028
MWI 6/15/18 220 7.5 0.025 440 ND ND 0.00048
MWI 9/17/18 920 7.0 0.075 350 0.00043 ND 0.016
MWI 12/17/18 7.0 0.23 390 ND ND 0.00089
MWI 3/18/19 920 9.9 380 0.00039 ND 0.0037
MWI 5/13/19 920 8.5 0.11 370 ND 0.036 0.0021
MWI 9/16/19 350 4.0 0.096 330 0.00046 0.0040
1W1 12/1619 920 7.1 0.00074 ND 0.0120
MWI 3/16/19 920 14.0 0.072 270 ND 0.0043
MW1 | 6/16/20 920 6.8 0.080 0.048 0.018
MWI 9/14/20 240 7.0 0.081 370 0.00058 ND 0.053
MWI 12/15/20 9.3 6.6 0.089 290 0.00040 ND 0.017
MWI 3/17/21 6.6 0.086 340 ND ND 0.019
MWI 6/22/21 ND 65 0.087 370 0.00003 ND 0.007
MWI 9/21/21 7.5 0.087 350 0.00073 ND 0.0085
MWI 12/14/21 920 89 220 0.00047 0.049 0.033
MWI 3/16/22 = 7.3 0.074 ND ND 0.0010
MWI 6/15/22 ND 8.0 0.11 ND 0.0029
DELLAVALLE™

2.2 2.2 10 900-1600 0.010 0.3 0.05 250 0.010 0.3 0.05
MWI 9122/22 350 9.0 ND 370 0.00077 ND 0.0044
MW1 1128/22 1.1 6.8 ND 7.0 751 ND ND ND
MWI 3/2/23 10.7 ND 6.8 574 347 ND
MWI 5/17/23 <1.8 1.1 6.9 585 310 ND
MW18/14/23 <1.8 73 ND 6.9 504 365 ND ND 0.08
NM - Not Measured
ND - Not Detected
DELLAVALLE™

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Total
Coliform Coliform Dissolved
Bacteria Bateria Nitrate as N Ammonia as N Solids Dissolved Dissolved / Dissolved Total Total Total Total Date (TCO) (FCO) (NO,-N) (NH,-N) pH EC (TDS) Arsenic Manganese Chloride Sodium Arsenic Iron Manganese TOC Method/Analysis S2S1221E EPA 3000 SM 4500 SM 4500 SM2510 B SM2540 C| EPA S242 EPA 200.8 EPA 200.7 EPA 2007 EPA EPA EPA SM H+ EPA 200.7 |
300 0 200.7 200.8 200.7 5310 B
MPN/100ml/ MPN/100ml mg/ mg/2 umhs/cm HgL mg/l. mg/L. mel. mg/L. ng/L mg/l. mg/L. mgL.

2.2 900-1600 500 0.010 0.3 0.05 0,010 0.3 0.05
MW2 11/30/01 ND
3/20/02 1.20 ND
6/12/02 ND
9/17/02 ND 1060
MW2 12/9/02 ND 1090
MW2 3/28/03 832
5/17/03 942
10/1/03 1040
MW2 12/31/03 0.20 829
MW2| 3/31/04 0 59 800
6/30/04 0.66 938
MW2 9/30/04 046 1010
MW2 1/3/05 0.43 833 0.060 ND
MI2 4/5/05 4.30 912 ND ND
MW2 7/1/05 13.00 1190 ND ND
MW2 4.20 1700 ND 0.030
MW2 3/8/06 6.90 1190 0.020
MW2 5/30/06 700 977 ND ND
8/23/06 6.30 ND 0.021/
MW2 12/8/06 1.80 1360 0.020
MW2 3/8/07 1.00 1370 ND 12 z z
MW2 6/19/07 1250 0.009
MW2 9/27/07 ND 0.013
MW212/13/07 0.16 1030 0.052 0.014
MW26/30/08 ND 0.10 ND 0.016
DELLAVALLE™

MCL 2.2 900-1600 500 0.010 0.05 250 0.3 0.05
11/30/08 ND 0.08 ND 1.010 0.022 0.018 8 ND 0018 2.4
12/31/08 0.16 ND 0.0024 8.74 0.093
MW2 3/12/09 0.14 0.053 0.018 ND 0.506 0.020 1.9
MW2 6/17/09 ND 0.19 0.027 1100 ND 0.053 0,028
MW2 9/22/09 ND ND 0.10 1100 0.020 0.190 0.036
MW2 12/15/09 ND 0.17 0.029 870 ND 1 200 0.034
3/24/10 ND 0.16 0.034 ND 0.110 0.029
MW2 : 6/23/10 240 0.26 1100 ND 0.087 0.029
MW2 9/24/10 > 1600 0.32 ND 1300 ND 0.16 0.033
MW2 12/14/10 > 1600 0.06 940 ND 031 0,032
MW2 3/29/11 ND 0.58 1100 ND 0.029 0.037
6/23/11 2,50 0.036
MW2 9/15/11 0.25 ND ND 0.033
MW2 ฿ 12/13/11 ND 0.18 0.013 0.0170 0.034
3/22/12 17 0.27 0.0089 0.0220 0.027
6/27/12 4.0 ND 0.19 0.025 0.034
9/25/12 0.13 ND ND 0.130 0.035
MW2 12/18/12 0.09 ND 830 ND 0.120 0.033
MW2 3/11/13 0.13 ND 0.076 0.036
6/26/13 0.07 0.11 0 0096 0,430 0.031
9/13/13 0.12 1000 ND 0.290 0.024
/ 12/12/13 ND 0.21 ND 1.100 0.095
MW2 3/5/14 0.11/ 0.034 0.013 0.044 0.011
6/16/14 0.15 0.018 0,0091
| 9/17/14| 0.14 ND 820 ND 0.059 0019
DELLAVALLE™

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Fecal
Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N Ammonia as N Solids Dissolved Dissolved Dissolved Total Total Total Date (TCO) (FCO) (NO,-N) (NH,-N) EC (TDS) voC Arsenic Manganese Chloride Sodium Arsenic Iron Manganese TOC Method/ Analysis SM9221B SM 9221 E EPA 300.0 SM 4500 5045000 SM 2510 B SM 2540 C EPA $24.2 EPA 2008 EPA 200.7 EPA 200.7 EPA EPA EPA EPA 3000 EPA 200.7
200.7 200.8 200.7 5310 B
MPN/100ml MPN/100ml mg/l umhs/cm mg/L mg/L. mg/L mg/l mg/L mpL

2.2 2.2 10 900-1600 500 0.010 0.3 0.05 8.010 0.3 0.05
MW2 12/19/14 0.14 ND 600 ND 0.011
MW2 3/23/15 4.0 840 0.014
MW2 | 6/10/15 0.09 900 0.00059 0.020
MW2 9/16/15 ND 0.11 920 000065 0.022
MW2 12/15/15 ND 0.06 0.00052 0.0044
MW2 3/29/16 0.34 940 ND ND 0.014
MW2 6/20/16 ND 0.30 ND 0.015
MW2 9/7/16 ND 0.21 0.033 1000 ND 0.023
MW2 12/7/16 ND 0.21 960 0.00044 0.033
MW2 3/8/17 ND 1.30 1100 ND 0.0070
MW2 6/1S/17 | ND 5.90 0.00087 0.019
MW2 9/14/17 ND 0.98 0.0010 0.029
MW2 12/6/17 0.65 1100 0.00057 0.034
MW2 3/9/18 0.65 0.057 0.00057 0.034
MW2 6/15/18 0.46 0.028 1200 0.024
MW2 9/17/18 0.10 0.092 1200 0.00078 0.084 0.023
MW2 12/17/18 78 0.12 0.10 0.00038 0.024
MW2 3/18/19 170 0.92 0.00043 0.011
MW2 5/13/19 2.60 ND 0.20 0.018
MW2 9/16/19 0.40 0.10 1100 0.023
MW2 12/16/19 0.41 960 0.00073 0.068 0.035
MW2 3/16/20 8.2 0.24 1100 ND 0.075 0.032
MW2 6/16/20 350 4.00 0.074 0.048
MW2 9/14/20 0.26 1100 ND 0.022
MW212/15/20 0.13 0.039 1100 ND ND 0.022
DELLAVALLE™

MCL 2.2 2.2 10 900-1600 500 0.010 0.3 0.05 250 0 010 i 0.3 MW2 3/17/21 130 0.070 0.034
6/22/21 0.11 920 0.00057 0.029
MW2 9/21/21 O.SI 0,63 ND 0.024
12/14/21 350 680 0.00062 0.0038
MW2 3/16/22 0.068 ND 0.0056
6/15/22 0.38 0.11 870 ND 0.023
9/22/22 0.33 0,07 0.00069 0,016
11/28/22 ND 0.30 ND ND
03/02/23 ND 1.90 ND ND
05/17/23 <1.8 3.4 ND ND
MW208/14/23 <1.8 10 0.02
NM - Not Measured
ND - Not Detected
DELLAVALLE™

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Fecal
Coliform Coltform Dissolved
Bactena Bactena Nitrate as N Ammonia as N Solids Dissolved Dissolved Dissolved Total Total Total Date (TCO) (FCO) (NO,-N) (NH.-N) EC (TDS) VOC Arsenic Iron Manganese Chloride Sodium Arsenic Iron Manganese TOC Method/ Analysis SM 9221B SM9221 E EPA 300.0 SM 4500- SM 2510 B KPA207 500 201 208 901 SM SM 4500 / SM 2540 C EPA S24.2 EPA 200.8 EPA 200.7 EPA 200.7 EPA 200.7 5310 B
MPN/100ml MPN/100ml mg/l. umis/em mal. mgL. mg/L mp/L me/l. my/L mel. me/.

2.2 10 900-1600 500 0.010 0.3 0.05 0,010 0.3 0.05
MW3 11/30/01 ND
MW3 3/20/02
MW3 6/12/02
9/17/02
12/31/03 0.07
MW3 3/31/04 15.8 0.18
MIV3 6/30/04 22.8 0.13
MW3 9/30/04 11.0 0.13
MW3 1/3/05 0.20 0.120 0.0089 8.1 0.12 3.8
MW3 4/5/05 1.95 0.120 0.014 3.88 0.12
MW3 7/L/05 1.21 0.130 0.017 6.22 0.16
MW3 10/21/05 > 2400 4.70 0 130 0.011 9,20 0.13
MW3 3/8/06 ≥ 30 0,130 0.0074 23 0,14 28
MW3 5/24/06 1.03 0.099 0.026 | 48.2 0.192
MW3 8/23/06 4.20 0.0074 58 0.13 59
MW3 12/8/06 4.30 0,120 0.0057 7.2 0.13 5.7
MW3 3/8/07 2.17 0.148 30.10.0077 4.7 0.15 3.7
MW3 6/19/07 3.70 0.130 0.00s 56 0.14 29
MW3 9/27/07 4.00 0,130 0.011 4.4 0.14 2.7
MW3 12/13/07 2,90 0.140 0.012 7.3 0.14 2.3
MW3 6/30/08 0.10 3.00 0.110 0.020| 24.00 0.16 2.0
DELLAVALLE™

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Total
Coliform Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N Ammonia as N Solids Dissolved Dissolved Dissolved Total Total Date (TCO) (FCO) (NO.-N) (NH,-N) pH EC voC Arsenic Iron Manganese Chlonde Sodium Iron Manganese TOC Method Analysis SM 9221B SM 9221 E EPA 300.0 SM 4500 SM 4500- SM 2510B SM 2540 C EPA 524.2 EPA 200.8 EPA 200.7 EPA 2007 EPA EPA EPA EPA 200.7 SM H+ 300.0 200.7 200.8 200.7 5310 B
Units. MPN/100ml MPN/100ml mg/l. units unths/cm mg/l. Her. ingl mgL. тул. mg2. mgh. mgh. mg/l. mg/L

2.2 2.2 900-1600 500 0.010 0.3 0.05 0.010 0.3 0.05
MW3 11/30/08 0.29 ND 424 2.94 0.118 0.012 11.40 0.14 2.0 MW3 12/31/08 ND 320 2.18 0.140 0.0056 3.73 0.125 1.3
/ 3/12/09 313 2.15 0.129 0.00565,340 0.128
MW3 6/17/09 0.091 350 ND 2.20 0.091 3.0
MW3 9/22/09 0.095 340 ND 2,80 0,120
MW3 12/15705 0.13 350 ND 0.100
MW3 3/24/10 = 310 ND 3.10 0.120
MW3 6/23/10 0.073 320 ND 3.20 0.110
9/24/10 0.04 0.071 350 0.0078 2.60 0.120
12/14/10 0.06 0.076 300 3.70 0.097
3/29/11 0.03 0.15 3.50 0.100
6/23/11 0.13 0.080 310 0.0098 3.90 0.100
9/15/11 110 0.0083 3.80 0.099
MW3 12/13/11 0.11 0.070 500 0.013 3.50 0.100
3/22/12 0.088 340 0.0076 2.60 0.100
MW3 6/27/12 0.066 380 ND 3.10 0.100
MW3 9/25/12 0.066 300 ND 1.40 0.110
MW3 12/18/12 0.05 0.088 300 ND 3.00 0.095

0.036 380 ND 1.20 0.12
3/1113
MW3 6/26/13 0.05 0.14 ND 0.77 0.13
MW3 9/13/13 0.019 410 ND 0.41 0.13
MW3 12/12/13 0.10 410 ND 0.97 0.17
MW3 3/5/14 0.20 0.068 ND 0.12
MW3 6/16/14 410 0,0150 ND 0.13
MW39/17/14 0.32 0.15

DELLAVALLE

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Total
Coliform Dissolved
Sample Bacteria Bacteria Nitrate as N Ammonia as N Solids Dissolved Dissolved Dissolved Total Total Total Total Date (TCO) (NO,-N) (NH,-N) pH EC (TDS) VOC Arsenic Manganese Sodium Arsenic iron Manganese TOC Method/Analysis SM 9221B| SM 9221E EPA 300.0 SM 4500 SM 4500 SM 2510B SM 2540C EPA 5242 EPA 200.8 EPA 200.7 EPA 200.7 EPA EPA EPA EPA SM H+ EPA 200.7
300.0 200.7 200.8 200.7 5310 B
MPN/109m MPSV/100m2 ng/l mg/L umhs/em mg/L mgL mg/L mgl ng/. mg/L. mg/L.

MCL 2.2 900-1600 500 0.010 0.3 0.05 0.010 0.3 0.05
MW3 12/19/14 0.30 0.034 360 ND 0.84 0.11
MW3 3/23/15 0.14 0.0027 0.7 0.098
MW3 6/10/15 | 0.24 440 0.0026 0.64 0.096
MW3 9/16/15 0.11 0.031 410 0,0028 0.90 0.130
MI3 12/15/15 0.04 0.088 0.0035 0.83 0.093
MW3 3/29/16 0,23 ND 0.39 0.073
MW3 6/20/16 0.05 0.0029 0.59 0.089
MW3 9/716 ND 0.38 0.029 0.0020 0.37 0.120
MW3 12/7/16 0.17 0.044 0.0024 0.46 0.120
MW3 37717 ND 0.06 370 0.0021 0.53 0.079
MW3 6/15/17 0.22 0.14 410 0.0026 0.68 0.084
MW3 9/14/17 0.05 0.16 410 0.0032 2,200 0,130
MW3 12/6/17 540 0.40 0.038 440 0.0019 0,340 0.110
MW3 3/9/18 0.69 0.059 0.0014 ND 0,086
MW3 6/15/18 540 0.58 0.059 0.00074 ND
MW3 9/17/18 0.60 0.0011 ND 0.17
MW3 12/17/18 054 0.210 ND 0.31
MW3 3/18/19 0.60 0.062 0.00078 ND 0.11
MW3 S/13/19 > 1600 0.55 0.0010 ND 0.13
MW3 9/16/19 920 0.97 550 0.00088 0.34 0,17
MW3 12/16/19 920 0.92 0.0011 0.13 0.14
Mw3 3/16/19 170 1.20 0.069 490 0.065 0.14
MW3 6/16/20 0.79 0.077 0.053 0.16
MW3 9/14/20 1.10 0.084 0.21
MW3 12/15/20| 1,70 490 ND 0.21
DELLAVALLE*

LABORATORY INC
Historical Groundwater Quality Data
Castle Oaks Golf Course
City of lone
R5-1993-0240-002
Total Total
Coliform Dissolved
Sample Bacteria Bactena Nitrate as N Ammonia as N Solids Dissolved Dissolved Dissolved Total Total Total Total Date (TCO) (NO.-N) (NH,-N) pH EC (TDS) voC Arsenic Iron Manganese Chloride Sodium Arsenic Iron Manganese TOC Method/Analysis SM 9221B SM 9221 E| EPA 3000 SM 4500 SM 4500 SM 2510B SM2540 C EPA 524.2 EPA 200.8 EPA 200.7 EPA 2007 EPA EPA EPA EPA EPA 200 7 SM 300.0 200.7 200 8 200.7 5310 B
Units MPN/100ml MPN/100ml mg/L umhs/cm ng/l Hg/L ng/L mg/l ing/L mg/L meL. mg2 mg/L 22 2.2 900-1600 500 0.010 0.3 0.05 0.010 0.3 0.05
MIV3 3/1721 1.40 0.071 ND 0.080
MW3 6/2221 1.50
MI3 9/21/21 1.80
MW3 12/14/21 920 0.85 0.17 0.0013 0.13
3/16/22 220 0.75 0.088 0.00074 2.
: 6/15/22 1.00 0.088 011
922/22 540 1.60 0.00083 0.14
MW3 11/28/22 1.1 0.70 0.12
MIV3 03/02/23 0.70 0.11
MW3 05/17/23 <1.8 11 0.14
MW3 08/14/23 0.3 0.10
NM - Not Measured
ND - Not Detected
DELLAVALLE™

LABORATORY INC
- MW-1
Castle Oak Golf Course Monitoring Wells MW-2
Total Coliform Organism MW-3
2400.0
2300.0
2200.0
2100.0
2000.0
1900.0
1800.0
1700.0
1600.0
1500.0
1400.0
1300.0
MPN per 100 ml
1200.0
1100.0
1000.0
900.0
800.0
700.0
600.0
500.0
400.0
300.0
200.0
100.0

0.0 J-01 J-03 1-04 J-07 J-10 J-11 J-12 J-13 J-14 J-15 J-16 J-17 J-19 J-20 J-22 1-23 DELLAVALLE"

LABORATORY INC
- MW-1
Castle Oak Golf Course Monitoring Wells MW-2
Nitrate as N (NO3-N) MW-3
•Primary MCL

20.0 19.0

18.0 17.0

16.0 15.0

14.0 13.0

12.0 NO3-N (mg/L) 11.0

10.0 9.0

8.0 7.0

6.0 5.0

4.0 3.0

2.0 1.0

0.0 1-02 1-03 1-04 1-05 1-06 J-07 J-08 J-09 J-10 J-11 J-12 J-13 J-14 J-15 1-16 J-17 J-18 J-19 J-20 J-21 J-22 J-23 DELLAVALLE™

LABORATORY INC
- MW-1 - MW-2
Castle Oak Golf Course Monitoring Wells
Ammonia as N (NH4-N) • MW-3

1.5 1.4

1.3 1.2
(7/6)N-THN

0.6 0.5

0.4 0.3

0.2 0.0
1-02 1-03 J-04 J-05 J-22 J-23
DELLAVALLE™

LABORATORY INC
-MW-1 • MW-2
Castle Oak Golf Course Monitoring Wells
Field pH MW-3

8.0 7.5
1-09 1-10 1-11 J-12 J-13 J-14 1-15 J-16 1-17 J-18 J-19 J-20 J-21 J-22 J-23 DELLAVALLE™

LABORATORY INC
MW-1 MW-2
Castle Oak Golf Course Monitoring Wells
Field Electrical Conductivity (EC) MW-3
2500
2400
2300
2200
2100
2000
1900
1800
1700
1600
1500
1400
1300
EC (umhos/cm)
1200
1100
1000
900
800
700
600
500
400
300
200
100
1-09 J-10 J-11 J-12 J-13 J-14 J-15 J-16 1-17 J-18 J-19 J-20 J-21 J-22 J-23 DELLAVALLE™

LABORATORY INC
MW-1
Castle Oak Golf Course Monitoring Wells MW-2
Total Dissolved Solids (TDS) MW-3
- Secondary MCL
2500
2400
2300
2200
2100
2000
1900
1800
1700
1600
1500
1400
TDS (mg/L)
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
1-02 J-03 J-04 J-05 J-06 J-07 1-08 J-09 1-10 J-11 J-12 J-13 J-14 1-15 1-16 J-17 J-18 J-19 J-20 J-21 1-22 1-23 DELLAVALLE™

LABORATORY INC
- MW-1
Castle Oak Golf Course Monitoring Wells MW-2
MW-3
Dissolved Arsenic (As)
-Primary MCL

0.024

0.022

0.020

0.018

0.016

0.014

0.012

0.010

0.008

0.006

0.004

0.002

0.000
1-09 J-10 J-11 J-12 J-13 J-14 J-15 J-16
DELLAVALLE™

LABORATORY INC
- MW-1
MW-2
Castle Oak Golf Course Monitoring Wells
MW-3
Dissolved Iron (Fe)
= Secondary MCL

4.80 4.50

4.20 3.90

3.60 3.30

3.00 Fe (mg/L) 2.70

2.40 2.10

1.80 1.50

1.20 0.90

0.60 0.30

0.00 1-05 1-06 J-07 J-08 1-09 J-10 J-11 J-12 J-13 J-14 J-15 J-16 J-17 J-18 J-19 J-20 J-21 J-22 J-23 DELLAVALLE™

LABORATORY INC
- MW-1
MW-2
Castle Oak Golf Course Monitoring Wells MW-3
Dissolved Manganese (Mn) •Secondary MCL

0.50 0.45

0.40 0.35

0.30 Mn (mg/L)

0.25 0.20

0.15 0.10

0.05 J-15 1-16 J-17 J-18 1-19 J-20 J-21 J-22 J-23
Attachment 5
Reports of Water Analysis
(Monitoring Wells)
DELLAVALLE™

LABORATORYINC
1910 W. McKinley Avenue, Suite 110 • Fresno, California 93728-1298 Phone (559) 233-6129 • (800) 228-9896 • Fax (559) 268-8174 Nebsite: dellavallelab. con
DELLAVALLE™

LABORATORY INC
City of Ione Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/31/2023 10:10 Ione, CA 95640 Submitted By: Todd Waklee
Ranch: R5-1993-0240-002 Castle Oak Golf
Course
Samples in this Report
Lab ID Sample Matrix Sampled By Crop Date Sampled
23H1313-01 CO MW-1 Monitoring Well Antonio Del-Tech 08/14/2023 10:32 23H1313-02 CO MW-2 Monitoring Well Antonio Del-Tech 08/14/2023 10:01 23H1313-03 CO MW-3 Monitoring Well Antonio Del-Tech 08/14/2023 9:22 Default Cooler Temperature on Receipt °C: 3.3
Containers Intact
COC/Labels Agree
Received On Ice
Notes and Definitions
Item Definition
H Hold Time Exceeded
MCL Drinking Water Maximum Contaminant Level
ND Analyte NOT DETECTED at or above the reporting limit.

NES Not Enough Sample
* Not Taken
RPD Relative Percent Difference
%REC Percent Recovery
Source Sample that was matrix spiked or duplicated.

Scott I triedlared
Laboratory Director/Technical Manager
ELAP Certification #1595
A2LA Certification #6440.02
The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc, assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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DELLAVALLE™

LABORATORYIN C
City of Ione Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/31/2023 10:10 Ione, CA 95640 Submitted By: Todd Waklee
Ranch: R5-1993-0240-002 Castle Oak Golf
Sample Results
Sample: CO MW-1 Sampled: 8/14/2023 10:32
23H1313-01 (Water) Sampled By: Antonio Del-Tech
Reporting DW Date/Time
Analyte Result Units Limit DIL MCL Analyzed Method Notes Batch Electrical Conductivity 0.50 mmhos/cm 0.01 1 08/15/23 17:00 SM 2510 B BEH0723 Electrical Conductivity umhos 504 umhos/cm 10.0 1 08/15/23 17:00 SM 2510 B BEH0723 Iron ND mg/L 0.10 1 08/16/23 14:15 EPA 200.7 BEH0771
Manganese 0.08 mg/L 0.02 1 08/16/23 14:15 EPA 200.7 BEH0771 Ammonia (as N) ND mg/L 0.500 1 08/16/23 10:57 SM 4500-NH3 H BEH0702 Nitrite Nitrogen as NON ND mg/L 0.4 1 1 08/15/23 19:48 EPA 300.0 BEH0726 Nitrate Nitrogen as NO3N 7.3 mg/L 0.1 1 08/15/23 19:48 EPA 300.0 BEH0726 pH 6.9 units 1.0 1 08/15/23 17:00 SM 4500-H+ H BEH0723
Total Filterable Solids (TDS) 365 mg/L 10.0 1 08/16/23 15:09 SM 2540 C BEH0718 .The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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DELLAVALLE™

LABORATORYINC
City of Ione Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/31/2023 10:10 Ione, CA 95640 Submitted By: Todd Waklee
Ranch: R5-1993-0240-002 Castle Oak Golf
Course
Sample Results
(Continued)
Sample: CO MW-2 Sampled: 8/14/2023 10:01
23H1313-02 (Water) Sampled By: Antonio Del-Tech
Reporting DW Date/Time
Analyte Result Units Limit DIL MCL Analyzed Method Notes Batch Electrical Conductivity 1.84 mmhos/cm 0.01 1 08/15/23 17:02 SM 2510 B BEH0723 Electrical Conductivity umhos 1840 umhos/cm 10.0 1 08/15/23 17:02 SM 2510 B BEH0723 Iron ND mg/L 0.10 1 08/16/23 14:16 EPA 200.7 BEH0771
Manganese 0.02 mg/L 0.02 1 08/16/23 14:16 EPA 200.7 BEH0771 Ammonia (as N) ND mg/L 0.500 1 08/16/23 10:58 SM 4500-NH3 H BEH0702 Nitrite Nitrogen as NON ND mg/L 0.4 1 1 08/15/23 20:09 EPA 300.0 BEH0726 Nitrate Nitrogen as NON 1.0 mg/L 0.1 1 10 08/15/23 20:09 EPA 300.0 BEH0726 pH 5.9 units 1.0 1 08/15/23 17:02 SM 4500-H+ H BEH0723
Total Filterable Solids (TDS) 1420 mg/L 10.0 1 08/16/23 15:09 SM 2540 C BEH0718 The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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DELLAVALLE™

LABORATORYINC
City of Ione Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/31/2023 10:10 Ione, CA 95640 Submitted By: Todd Waklee
Ranch: R5-1993-0240-002 Castle Oak Golf
Course
Sample Results
(Continued)
Sample: CO MW-3 Sampled: 8/14/2023 9:22
23H1313-03 (Water) Sampled By: Antonio Del-Tech
Reporting DW Date/Time
Analyte Result Units Limit DIL MCL Analyzed Method Notes Batch Electrical Conductivity 0.69 mmhos/cm 0.01 1 08/15/23 17:03 SM 2510 B BEH0723 Electrical Conductivity umhos 687 umhos/cm 10.0 1 08/15/23 17:03 SM 2510 B BEH0723 Iron ND mg/L 0.10 1 08/16/23 14:17 EPA 200.7 BEH0771
Manganese 0.10 mg/L 0.02 1 08/16/23 14:17 EPA 200.7 BEH0771 Ammonia (as N) ND mg/L 0.500 1 08/16/23 10:59 SM45003H BEH0702 Nitrite Nitrogen as NON ND mg/L 0.4 1 1 08/15/23 20:29 EPA 300.0 BEH0726 Nitrate Nitrogen as NO3N 0.3 mg/L 0.1 1 10 08/15/23 20:29 EPA 300.0 BEH0726 pH 6.5 units 1.0 1 08/15/23 17:03 SM 4500-H+ H BEH0723
Total Filterable Solids (TDS) 560 mg/L 10.0 1 08/16/23 15:09 SM 2540 C BEH0718 The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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DELLAVALLE™

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DELLAVALLE™

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DELLAVALLE™

Reference (BEH0723-SRM3) Prepared & Analyzed: 8/15/2023 Electrical Conductivity 939 umhos/cm 1000 93.9 90-110
Electrical Conductivity umhos 939 umhos/cm 1000 93.9 90-110 Reference (BEH0723-SRM4) Prepared & Analyzed: 8/15/2023 Electrical Conductivity 941 umhos/cm 1000 94.1 90-110
Electrical Conductivity umhos 941 umhos/cm 1000 94.1 90-110 Reference (BEH0723-SRM5) Prepared & Analyzed: 8/15/2023 Electrical Conductivity 950 umhos/cm 1000 95.0 90-110
Electrical Conductivity umhos 950 umhos/cm 1000 95.0 90-110 The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety All results listed in this report are for the exclusive use of the submitting party. Dellavalie Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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DELLAVALLE™

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DELLAVALLE™

LABORATORY INC
City of Ione Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/31/2023 10:10 Ione, CA 95640 Submitted By: Todd Waklee
Ranch: R5-1993-0240-002 Castle Oak Golf
Course
Quality Control
(Continued)
Reporting Spike Source %REC RPD
Analyte Result Qual Limit Units Level Result %REC Limits RPD Limit Batch: BEH0726
Blank (BEH0726-BLK1) Prepared & Analyzed: 8/15/2023
Nitrate Nitrogen as NON ND 0.1 mg/L
Nitrie Nitrogen as NOZN ND 0.4 mg/L
Blank (BEH0726-BLK2) Prepared & Analyzed: 8/15/2023
Nitrate Nitrogen as NON ND 0.1 mg/L
Nitrite Nitrogen as NOZN ND 0.4 mg/L
Blank (BEH0726-BLK3) Prepared: 8/15/2023 Analyzed: 8/16/2023 Nitrate Nitrogen as NON ND 0.1 mg/L
Nitrite Nitrogen as NON ND 0.4 mg/L
LCS (BEH0726-BS1) Prepared & Analyzed: 8/15/2023
Nitrate Nitrogen as NON 5.1 0.1 mg/L 5.000 102 90-110
Nitrite Nitrogen as NO2N 5.3 0.4 mg/L 5.000 106 90-110
LCS (BEH0726-BS2) Prepared: 8/15/2023 Analyzed: 8/16/2023 Nitrate Nitrogen as NON 5.1 0.1 mg/L 5,000 103 90-110
Nitrite Nitrogen as NO2N 5.4 0.4 mg/L 5.000 107 90-110
Duplicate (BEH0726-DUP1) Source: 23H1316-01 Prepared & Analyzed: 8/15/2023 Nitrate Nitrogen as NON 1.2 0.1 mg/L 1.3 2.91
Nitrite Nitrogen as NON ND 0.4 mg/L ND
Duplicate (BEH0726-DUP2) Source: 23H1449-10 Prepared: 8/15/2023 Analyzed: 8/16/2023 Nitrate Nitrogen as NON 0.3 0.1 mg/L 0.3 1.21
Nitrite Nitrogen as NO2N ND 0.4 mg/L ND 10
Matrix Spike (BEH0726-MS1) Source: 23H1316-01 Prepared & Analyzed: 8/15/2023 Nitrate Nitrogen as NON 6.4 0.1 mg/L 5.000 1.3 102 90-110 Nitrite Nitrogen as NOZN 5.0 0.4 mg/L 5.000 ND 99.5 90-110 Matrix Spike (BEH0726-MS2) Source: 23H1449-10 Prepared: 8/15/2023 Analyzed: 8/16/2023 Nitrate Nitrogen as NON 5.5 0.1 mg/L 5.000 0.3 103 90-110 Nitrite Nitrogen as NON 5.1 0.4 mg/L 5.000 ND 101 90-110 Reference (BEH0726-SRM1) Prepared & Analyzed: 8/15/2023 Nitrate Nitrogen as NON 10.4 mg/L 10.00 104 90-110
Nitrite Nitrogen as NO2N 1.0 mg/L 1.000 102 90-110
Reference (BEH0726-SRM2) Prepared: 8/15/2023 Analyzed: 8/16/2023 Vitrate Nitrogen as NO31 10.2 mg/L 10.00 102 90-110
Vitrite Nitrogen as NON 1.0 mg/L 1.000 99.5 90-110
The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or thir party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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DELLAVALLE™

Ali results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

Page 10 of 21 ends

DELLAVALLE™

LABORATORYINC
City of lone Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/31/2023 10:10 Ione, CA 95640 Submitted By: Todd Waklee
Ranch: R5-1993-0240-002 Castle Oak Golf
Course
Quality Control
(Continued)
Reporting Spike Source %REC RPD
Analyte ResultQual Limit Units Result %REC RPD Limit
Batch: BEH0771
Blank (BEH0771-BLK1) Prepared: 8/15/2023 Analyzed: 8/16/2023 Iron ND 0.10 mg/L
Manganese ND 0.02 mg/L
Blank (BEH0771-BLK2) Prepared: 8/15/2023 Analyzed: 8/16/2023 Manganese ND 0.02 mg/L
Iron ND 0.10 mg/L
LCS (BEH0771-BS1) Prepared: 8/15/2023 Analyzed: 8/16/2023 Manganese 6.86 0.02 mg/L 7.143 96.1 90-110
Iron 6.81 0.10 mg/L 7.143 95.4 90-110
LCS (BEHO771-BS2) Prepared: 8/15/2023 Analyzed: 8/16/2023 Iron 6.79 0.10 mg/L 7.143 95.0 90-110
Manganese 6.85 0.02 mg/L 7.143 95.8 90-110
Duplicate (BEH0771-DUP1) Source: 23H1313-02 Prepared: 8/15/2023 Analyzed: 8/16/2023 Iron 0.03 0.10 mg/L 0.03 9.03 15
Manganese 0.02 0.02 mg/L 0.02 2.38 15
Matrix Spike (BEH0771-MS1) Source: 23H1313-02 Prepared: 8/15/2023 Analyzed: 8/16/2023 Iron 6.16 0.10 mg/L 7.143 0.03 85.9 90-110
Manganese 6.16 0.02 mg/L 7.143 0.02 85.9 90-110
Matrix Spike (BEH0771-MS2) Source: 23H1386-05 Prepared: 8/15/2023 Analyzed: 8/16/2023 Iron 6.73 0.10 mg/L 7.143 ND 94.2 90-110
Manganese 6.84 0.02 mg/L 7.143 0.07 94.8 90-110
Reference (BEH0771-SRM1) Prepared: 8/15/2023 Analyzed: 8/16/2023 Iron 1.88 mg/L 1.910 98.3 90-110
Manganese 1.37 mg/L 1.400 97.8 90-110
The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation.
1910 W. Mckinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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SUBCONTRACT
DELLAVALLE™
LABORATORY INC 08/15/23 10:20 23H1313
Sending Laboratory: Subcontracted Laboratory:

Dellavalle Laboratory Inc. After Hours Contact: BSK & Associates - Stanislaus 1910 McKinley, Ste, 110 687 N. Laverne
Fresno, CA 93728-1298 Susan Villagran Fresno, CA 93727
Phone: (559) 233-6129 559-530-1346 Phone: (559) 497-2888 Fax: (559) 268-8174 Martin James Fax: 559 485-6935
559-940-2024
Attn: Kaitlynn Shaw PO# 58812 Turnaround: Standard_"Rush [email protected] State Forms: Yes _ No & Sys# Work Order: 23H1313 Project: R5-1993-0240-002
Analysis
Sample ID: 23H1313-01 Monitoring Well Sampled: 8/14/2023 10:32AM Client Sample Name: CO MW -1 Sampled By: Antonio Del-Tech Comments
EPA 524w/MTBE:SO
As Dissolved: SO
Containers Supplied:

Sample ID: 23H1313-02 Monitoring Well Sampled: 8/14/2023 10:01AM Client Sample Name: CO MW-2 Sampled By: Antonio Del-Tech Comments
EPA 524 w/MTBE:SO
As Dissolved:SO
Containers Supplied:

Sample ID: 23H1313-03 Monitoring Well Sampled: 8/14/2023 9:22AM Client Sample Name: CO MW-3 Sampled By: Antonio Del-Tech Comments
EPA 524 W/MTBE:SO
As Dissolved: SO
Containers Supplied:

Ks 6110-17
Released By Date Received By Date
Released By Date Received By Date

Page 1 of 1 ends

DELLAVALLE LABORATORY, INC.
08/15/23 10:20 23H1313 1910 W. McK inley Avenue, Suite 110 • Fresno, CA 93728 www.dellavallelab.com 559 233-6129 • 800 228-9896 • Fax 559 268-8174 No. Samples: 3 No of Bottles: 9 bottles + 3-sets of VOAs Purchase Order No Bill To: Acct # Cons #
Water Type: | ] Drinking Water [ ] Wastewater
Results Need By [ ] Ag Water | ] Groundwater [x] Monitoring Well Name: City of lone Other:

Billing Address: 1 East Main Street Analysis and Bottles Required: (Please indicate Analysis ) City: lone State: CA Zip: 95640 K Quarterly
Telephone: 209-274-2412 pH, EC, TDS, NON, NO_-N, NH4-N, Dissolved Fe, Cell: Dissolved Manganese, Dissolved Arsenic, VOGs/ EPA S24/ Email: [email protected] 0717/23
COPY TO: [email protected] (1-1 Liter Plastic, Unpreserved) White per site [email protected] (1-250 mL Plastic w/H_SO,) NH-N Yellow per site REQUESTED BY: Todd Waklee (1-250 mL Plastic, Unpreserved) White BSK per site PROJECT: R5-1993-0240-002 (1-set of three VOAs w/HCL) Blue BSK per site Site: Castle Oak Golf Course
[ ] Annually
Dissolved General Mineral (No MBAS), Dissolved: As, B, K.

NO_-N, NH4-N, TKN, TN, VOCs
(1-1 Liter Plastic, Unpreserved) per site
(1-250 mL Plastic, Unpreserved) As White BSK per site
| ] Co. Health Dept (1-250 mL Plastic w/H,SO,) TKN Yellow per site | ]RWQCB [X] Copy of Chain (1-set of three VOAs w/HCL) Blue BSK per site [ 1 State Forms [X] QA/QC Documents
Sampled By: Antonio /PetTech SENDOUT
Date Time Rec'd
Description of Samples Sampled Sampled Temp °C Field EC 1 CO MW-1 S/1423 1037
CO MW-2 1001
3 CO MW-3 3-8

CHAIN OF CUSTODY
Carrier Signature Company Received Date/Time Relinquished Date/Time First Dol-Tech x14123922 8114/23 1:00
Second 5/15/23
814221:00 1020
Third
Fourth
I guarantee that as the client, or on behaif of client named, I have the authority to contract the abose requested services Should it he found that I do not have such authority. I agree to be personally hable for all costs and, if there should be action against me for this breach, reasonable attorneys foes It is understood that payment is expocted to be cash with samples unless terms hate hoen prevously arranged IR Thermometer SN: 200560723 Terms are net 30 days, overduc accounts will be charged a Iquidated damage fee of 2% per month (annually 24%) or $5 00 per month whscheier is greater Correction Factor: 0°C If payment is not made when due and a legitmate dispute exists concerning the product or services of Dallas alle Laboratory: Inc, it will be submited to mediation under ie Rules and Procedures of Creat Calibration Due: 9/26/2023 Merative to ligation, Inc: (cal). IF the dispute is not resol ed in modation, then the dispute will be submitted to binding arbutation through caf under is Rules and Procedures The parties will equally Location: Laborator bear the costs of mediation/arbitration Il, howerer, the modiator dectares that no legitimate dispute exists. then debtor wall pay all modistion and arbitration costs, and in the event of arbitration reasonable attorney s" foes of Dellavalle Laboratory
Lisa will invoice Signature
Sample received in cooler with ice (coolant)
[] No
X:11-CLIENT CUSTOM FIELDSHEETSIFIELDSHEETSIWATERSICity of lone CO MWs 1 14 2023

Page 13 of 21 ends

08/15/23 10:20 23H1313
Shipping Information: Shipped In • Picked-Up Walk In • DLI Sampler • Other o • Samples refrigerated before pick up & Picked up samples placed in Ice chest Container: Ice Chest 6, Box • None o Refrigerant: Wet Ice o Blue Ice o None o Samples Preserved with HNO or HaSO, were: & Received Preserved o Preserved Upon Receipt at Laboratory Sample Number
Type of Container(s) Received 1 2 3 4 5 6 7 8 10
Sample Containers for Internal (DLI) Use
(Containers that go into the Lab)
100 mL sterile plastic Na, S203 (Green)
250 mL unpreserved (White) Plastic
250 mL FINO, (Red) Plastic
DH Value
Plastics 250 mL H2504 (YelloW) Plastic
TpH Value
500 mL unpreserved (White Plastic
1 L unpreserved (White) Plastic
1 L unpreserved (BOD) (Purple) Plastic
500mL unpreserved (White) Glass
Special PO4-P Kit
Other:

Sample Containers for Subcontracted ("Send Out") Analyses (Containers that go in the Subcontract ("Send Out") Refrigerator 100 mL sterile plastic Na2S203 (Green)
250 mL unpreserved (White) Plastic
250 mL HNO, (Red) Plastic
250 mL H2SO4 (Yellow) Plastic
Plastics 500 mL HNO, (Red)
1 L unpreserved (White) Plastic
1 L unpreserved (BOD) (Purple) Plastic
TL HNO; (Red)
40 mL VOA, Na2S203 + MCAA (EPA531)
40 mL VOA, Na25203 (EPA547)
40mL AG VOA unpreserved (White) (Set of 3)
VOA Vials 40 mL AG VOA, Na,S,O, (Green) (Set of 3)
40mL VOA, H3PO4 (Set of 3)
40 mL VOA, HCI (Blue) (Set of 3)
40 mL VOA, Na,S,0, (Green) (Set of 3)
250 mL AG unpreserved (White)
250 mL AG H2S04 (Yellow)
250 mL AG Na,S203 (Green)
1250 mL AG Na2S203 + MCAA
Glass 500 mL glass unpreserved (White)
500 mL AG HCI (Blue)
1 L AG unpreserved (White)
TL AG H2S04 (Yellow)
TL AG Na,S203 (Green)
1 L AG HCI (Blue)
Cr - 50mL Plastic w/Borate/HCO, /CO3
Cyanide - 500 mL NaOH
Asbestos - 1L P wrapped in foil (Set of 2)
Sulfide - 1 L AG or P NaOH + ZnAc
Special Chlorite/Bromate - 250 mL AG with EDA
HAA5 - 250mL AG Ammonium Chlorite
DO KIT
Other:

Other: Page 14 of 21

13.22 K0VIS00.XI5X
AGH2460
BSK General Non-EDT
23H1313 R5-1993-0240-002

ASSOCIATES
Certificate of Analysis City of lone #25573/54
Project: R5-1993-0240-002
Sample ID: AGH2460-01 Sample Date - Time: 08/14/2023 - 10:32 Sampled By: Antonio - Del Tech Matrix: Water
Sample Description: 23H1313-01 // CO MW-1 Sample Type: Grab BSK Associates Laboratory Fresno
Metals
RL
Analyte Method Result RL Units Batch Prepared Analyzed Qual Mult
Arsenic - Dissolved (1) EPA 200.8 ND 2.0 ug/L 1 AGH1727 08/24/23 08/25/23 Organics
RL
Analyte Method Result RL Units Mult Batch Prepared Analyzed Qual Volatile Organics (SDWA Regulated) by GC-MS
1,1,1 -Trichloroethane EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 1,1,2,2-Tetrachloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1,2-Trichloro-1,2,2-trifuoroethane EPA 524.2 ND 10 ug/L 1 AGH1481 08/21/23 08/21/23 1,1,2-Trichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1, 1-Dichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1-Dichloroethene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2,4-Trichlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichloropropane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,4-Dichlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Benzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Carbon Tetrachloride EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Chlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 cis-1,2-Dichloroethene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 cis-1,3-Dichloropropene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Dichloromethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Ethylbenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 m,p-Xylenes EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Methyl-t-butyl ether EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 o-Xylene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Styrene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Tetrachloroethene (PCE) EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Toluene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 trans-1,2-Dichloroethene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 trans-1,3Dichloropropene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Trichloroethene (TCE) EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Trichlorofluoromethane EPA 524.2 ND 5.0 ug/L 1 AGH1481 08/21/23 08/21/23 Vinyl Chloride EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Total 1,3-Dichloropropene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Total Xylenes EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Surrogate: 1,2-Dichlorobenzene-d4 EPA 524.2 82% Acceptable range: 70-130% Surrogate: Bromofluorobenzene EPA 524.2 85% Acceptable range: 70-130% The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 15 of 21
AGH2460
ESK General Non-EDT
23H1313 R5-1993-0240-002

ASSOCIATES
City of lone #25573/54
Certificate of Analysis Project: R5-1993-0240-002
Sample ID: AGH2460-02 Sample Date - Time: 08/14/2023 - 10:01 Sampled By: Antonio - Del Tech Matrix: Water
Sample Description: 23H1313-02 // CO MW-2 Sample Type: Grab BSK Associates Laboratory Fresno
Metals
RL
Analyte Method Result RL Units Mult Batch Prepared Analyzed Qual Arsenic - Dissolved (1) EPA 200.8 ND 2.0 ug/L 1 AGH1727 08/24/23 08/25/23 Organics
RL
Analyte Method Result RL Units Mult Batch Prepared Analyzed Qual Volatile Organics (SDWA Regulated) by GC-MS
1,1,1-Trichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1,2,2-Tetrachloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23

1.1,2-Trichloro-1,2,2-trifluoroethane EPA 524.2 ND 10 ug/L AGH1481 08/21/23 08/21/23 1,1,2-Trichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1-Dichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1-Dichloroethene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2,4-Trichlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichloroethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichloropropane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 1,4-Dichlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Benzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Carbon Tetrachloride EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Chlorobenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 cis-1,2-Dichloroethene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 cis-1,3-Dichloropropene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Dichloromethane EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Ethylbenzene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 m,p-Xylenes EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Methyl-t-butyl ether EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 o-Xylene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Styrene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Tetrachloroethene (PCE) EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Toluene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 trans-1, 2-Dichloroethene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 trans-1,3-Dichloropropene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Trichloroethene (TCE) EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Trichlorofluoromethane EPA 524.2 ND 5.0 ug/L 1 AGH1481 08/21/23 08/21/23 Vinyl Chloride EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Total 1,3-Dichloropropene EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Total Xylenes EPA 524.2 ND 0.50 ug/L AGH1481 08/21/23 08/21/23 Surrogate: 1,2-Dichlorobenzene-d4 EPA 524.2 80% Acceptable range: 70-130% Surrogate: Bromofluorobenzene EPA 524.2 84% Acceptable range: 70-130% The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 16 of 21
AGH2460
ESK General Non-EDT
23H1313 R5-1993-0240-002

ASSOCIATES
City of lone #25573/54
Certificate of Analysis Project: R5-1993-0240-002
Sample ID: AGH2460-03 Sample Date - Time: 08/14/2023 - 09:22 Sampled By: Antonio - Del Tech Matrix: Water
Sample Description: 23H1313-03 // CO MW-3 Sample Type: Grab BSK Associates Laboratory Fresno
Metals
RL
Analyte Method Result RL Units Mult Batch Prepared Analyzed Qual Arsenic - Dissolved (1) EPA 200.8 ND 2.0 ug/L 1 AGH1727 08/24/23 08/25/23 Organics
RL
Analyte Method Result RL Units Mult Batch Prepared Analyzed Qual Volatile Organics (SDWA Regulated) by GC-MS
1,1,1-Trichloroethane EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1,2,2-Tetrachloroethane EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 1,1,2-Trichloro-1,2,2-trifluoroethane EPA 524.2 10 ug/L AGH1481 08/21/23 08/21/23 1,1,2-Trichloroethane EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1-Dichloroethane EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,1-Dichloroethene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2,4-Trichlorobenzene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichlorobenzene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichloroethane EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,2-Dichloropropane EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 1,4-Dichlorobenzene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 Benzene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23
Carbon Tetrachloride EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 Chlorobenzene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 cis-1,2-Dichloroethene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 cis-1,3-Dichloropropene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 Dichloromethane EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 Ethylbenzene EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 m,p-Xylenes EPA 524.2 0.50 ug/L AGH1481 08/21/23 08/21/23 Methyl-t-butyl ether EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 o-Xylene EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Styrene EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Tetrachloroethene (PCE) EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Toluene EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 trans-1,2-Dichloroethene EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 trans-1,3-Dichloropropene EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Trichloroethene (TCE) EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Trichlorofluoromethane EPA 524.2 5.0 ug/L 1 AGH1481 08/21/23 08/21/23 Vinyl Chloride EPA 524.2 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Total 1,3-Dichloropropene EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Total Xylenes EPA 524.2 ND 0.50 ug/L 1 AGH1481 08/21/23 08/21/23 Surrogate: 1, 2-Dichlorobenzene-d4 EPA 524.2 Acceptable range: 70-130% Surrogate: Bromofluorobenzene EPA 524.2 84% Acceptable range: 70-130% The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 17 of 21
BSK AGH2460
General Non-EDT
ASSOCIATES City of lone #25573/54
Project: R5-1993-0240-002
BSK Associates Laboratory Fresno
Metals Quality Control Report
Source
Analyte Result Units Level Result
EPA 200.8 - Quality Control
Batch: AGH1727 Prepared: 8/24/2023
Prep Method: Filtration - Metals Analyst: AHS
Blank (AGH1727-BLK1)
Arsenic - Dissolved (1) ND 2.0 ug/L 08/25/23
Blank Spike (AGH1727-BS1)
Arsenic - Dissolved (1) 230 2.0 ug/L 240 ND 97 85-115 08/25/23 Blank Spike Dup (AGH1727-BSD1)
Arsenic - Dissolved (1) 230 2.0 ug/L 240 ND 96 85-115 1 20 08/25/23 Matrix Spike (AGH1727-MS1), Source: AGH3171-01
Arsenic - Dissolved (1) 230 2.0 ug/L 240 ND 94 70-130 08/25/23 Matrix Spike (AGH1727-MS2), Source: AGH3257-01
Arsenic - Dissolved (1) 250 2.0 ug/L 240 15 99 70-130 08/25/23 Matrix Spike Dup (AGH1727-MSD1), Source: AGH3171-01
Arsenic - Dissolved (1) 230 2.0 ug/L 240 ND 96 70-130 2 20 08/25/23 Matrix Spike Dup (AGH1727-MSD2), Source: AGH3257-01
Arsenic - Dissolved (1) 250 2.0 ug/L 240 15 100 70-130 1 20 08/25/23 The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 18 of 21
AGH2460
General Non-EDT

ASSOCIATES
BSK Associates Laboratory Fresno City of lone #25573/54 Project: R5-1993-0240-002
Organics Quality Control Report
Spike Source %REC RPD Date
Analyte Result RL Units Level Result %REC Limits RPD Limit Analyzed Qual EPA 524.2 - Quality Control
Batch: AGH1481 Prepared: 8/21/2023
Prep Method: EPA 524.2 Analyst: CMF
Blank (AGH1481-BLK1)
1,1,1-Trichloroethane ND 0.50 ug/L 08/21/23
1,1,2,2-Tetrachloroethane ND 0.50 ug/L 08/21/23
1,1,2-Trichloro-1,2,2-trifluoroethane ND 10 ug/L 08/21/23 1,1,2-Trichloroethane ND 0.50 ug/L 08/21/23
1,1-Dichloroethane ND 0.50 ug/L 08/21/23
1, 1-Dichloroethene ND 0.50 ug/L 08/21/23
1,2, 4-Trichlorobenzene ND 0.50 ug/L 08/21/23
1,2-Dichlorobenzene ND 0.50 ug/L 08/21/23
1,2-Dichloroethane ND 0.50 ug/L 08/21/23
1,2-Dichloropropane ND 0.50 ug/L 08/21/23
1,4-Dichlorobenzene ND 0.50 ug/L 08/21/23
Benzene ND 0.50 ug/L 08/21/23
Carbon Tetrachloride ND 0.50 ug/L 08/21/23
Chlorobenzene ND 0.50 ug/L 08/21/23
cis-1,2-Dichloroethene ND 0.50 ug/L 08/21/23
cis-1,3-Dichloropropene ND 0.50 ug/L 08/21/23
Dichloromethane ND 0.50 ug/L 08/21/23
Ethylbenzene ND 0.50 ug/L 08/21/23
m,p-xylenes ND 0.50 ug/L 08/21/23
Methyl-t-butyl ether ND 0.50 ug/L 08/21/23
o-Xylene ND 0.50 ug/L 08/21/23
Styrene ND 0.50 ug/L 08/21/23
Tetrachloroethene (PCE) ND 0.50 ug/L 08/21/23
Toluene ND 0.50 ug/L 08/21/23
trans-1,2-Dichloroethene ND 0.50 ug/L 08/21/23
trans-1,3-Dichloropropene ND 0.50 ug/L 08/21/23
Trichloroethene (TCE) ND 0.50 ug/L 08/21/23
Trichlorofluoromethane ND 5.0 ug/L 08/21/23
Vinyl Chloride ND 0.50 ug/L 08/21/23
Total 1,3-Dichloropropene ND 0.50 ug/L 08/21/23
Total Xylenes ND 0.50 ug/L 08/21/23
Surrogate: 1,2-Dichlorobenzene-d4 40 50 70-130 08/21/23 Surrogate: Bromofluorobenzene 50 84 70-130 08/21/23
Blank Spike (AGH1481-BS1)
1,1,1 -Trichloroethane 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23 1,1,2,2 - Tetrachloroethane 9.2 0.50 ug/L 10 ND 92 70-130 08/21/23 1,.1,2-Trichloro-1,2,2-triluoroethane 9.7 10 ug/L 10 ND 97 70-130 08/21/23 1,1,2-Trichloroethane 9.3 0.50 ug/L 10 ND 93 70-130 08/21/23 1,1-Dichloroethane 9.6 0.50 ug/L 10 ND 96 70-130 08/21/23 1, 1-Dichloroethene 9.9 0.50 ug/L 10 ND 99 70-130 08/21/23 1,2,4- Trichlorobenzene 9.4 0.50 ug/L 10 ND 94 70-130 08/21/23 1,2-Dichlorobenzene 9.1 0.50 ug/L 10 ND 91 70-130 08/21/23 The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 analyiel report must prouted is mine.
www.BSKAssociates.com Page 19 of 21
BSK AGH2460
General Non-EDT
ASSOCIATES City of lone #25573/54
Project: R5-1993-0240-002
BSK Associates Laboratory Fresno
Organics Quality Control Report
Spike Source %REC RPD Date
Analyte Result RL Units Level Result %REC Limits RPD Limit Analyzed Qual EPA 524.2 - Quality Control
Batch: AGH1481 Prepared: 8/21/2023
Prep Method: EPA 524.2 Analyst: CMF
Blank Spike (AGH1481-BS1)
1,2-Dichloroethane 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23 1,2-Dichloropropane 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23 1,4-Dichlorobenzene 9.2 0.50 ug/L 10 ND 92 70-130 08/21/23 Benzene 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23
Carbon Tetrachloride 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23 Chlorobenzene 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23
cis-1,2-Dichloroethene 9.2 0.50 ug/L 10 ND 92 70-130 08/21/23 cis-1,3-Dichloropropene 9.4 0.50 ug/L 10 ND 94 70-130 08/21/23 Dichloromethane 10 0.50 ug/L 10 ND 103 70-130 08/21/23
Ethylbenzene 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23
m,p-xylenes 20 0.50 ug/L 20 ND 98 70-130 08/21/23
Methyl-t-butyl ether 18 0.50 ug/L 20 ND 92 70-130 08/21/23 o-Xylene 9.6 0.50 ug/L 10 ND 96 70-130 08/21/23
Styrene 9.6 0.50 ug/L 10 ND 96 70-130 08/21/23
Tetrachloroethene (PCE) 9.5 0.50 ug/L 10 ND 95 70-130 08/21/23 Toluene 9.4 0.50 ug/L 10 ND 94 70-130 08/21/23
trans- 1,2-Dichloroethene 9.9 0.50 ug/L 10 ND 99 70-130 08/21/23 trans-1,3-Dichloropropene 9.3 0.50 ug/L 10 ND 93 70-130 08/21/23 Trichloroethene (TCE) 9.4 0.50 ug/L 10 ND 94 70-130 08/21/23 Trichlorofluoromethane 9.4 5.0 ug/L 10 ND 94 70-130 08/21/23 Vinyl Chloride 9.8 0.50 ug/L 10 ND 98 70-130 08/21/23
Surrogate: 1,2-Dichlorobenzene-d4 41 50 82 70-130 08/21/23 Surrogate: Bromofluorobenzene 43 50 87 70-130 08/21/23
Blank Spike Dup (AGH1481-BSD1)
1,1,1-Trichloroethane ug/L 10 ND 92 70-130 3 30 08/21/23 1,1,2,2- Tetrachloroethane 9.2 ug/L 10 ND 92 70-130 0 30 08/21/23 1,1,2-Trichloro-1,2,2-trifluoroethane 9.5 ug/L 10 ND 95 70-130 2 30 08/21/23 1,1,2-Trichloroethane 9.0 ug/L 10 ND 90 70-130 30 08/21/23 1,1-Dichloroethane 9.3 ug/L 10 ND 93 70-130 30 08/21/23 1,1-Dichloroethene 9.6 ug/L 10 ND 96 70-130 30 08/21/23 1,2,4-Trichlorobenzene 9.1 ug/L 10 ND 91 70-130 30 08/21/23 1,2-Dichlorobenzene 8.9 ug/L 10 ND 89 70-130 30 08/21/23 1,2-Dichloroethane 9.1 ug/L 10 ND 91 70-130 30 08/21/23 1,2-Dichloropropane 9.2 ug/L 10 ND 92 70-130 30 08/21/23 1,4-Dichlorobenzene 9.0 ug/L 10 ND 90 70-130 30 08/21/23 Benzene 9.2 ug/L 10 ND 92 70-130 30 08/21/23
Carbon Tetrachloride 9.1 ug/L 10 ND 91 70-130 30 08/21/23 Chlorobenzene 9.2 ug/L 10 ND 92 70-130 30 08/21/23
cis-1,2-Dichloroethene 8.9 ug/L 10 ND 89 70-130 30 08/21/23 cis-1,3-Dichloropropene 9.1 ug/L 10 ND 91 70-130 30 08/21/23 Dichloromethane 9.8 ug/L 10 ND 98 70-130 30 08/21/23
Ethylbenzene 9.2 0.50 ug/L 10 ND 92 70-130 3 30 08/21/23 The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 anayla rain must proud its one ris
www.BSKAssociates.com Page 20 of 21
AGH2460
General Non-EDT

ASSOCIATES
City of lone #25573/54
BSK Associates Laboratory Fresno Project: R5-1993-0240-002 Organics Quality Control Report
Spike Source RPD Date
Analyte Result Units Level Result %REC
EPA 524.2 - Quality Control
Batch: AGH1481 Prepared: 8/21/2023
Prep Method: EPA 524.2 Analyst: CMF
Blank Spike Dup (AGH1481-BSD1)
m.p-Xylenes 19 0.50 ug/L 20 ND 95 70-130 3 30 08/21/23
Methyl-t-butyl ether 18 0.50 ug/L 20 ND 90 70-130 2 30 08/21/23 o-Xylene 9.3 0.50 ug/L 10 ND 93 70-130 3 30 08/21/23
Styrene 9.4 0.50 ug/L 10 ND 94 70-130 3 30 08/21/23
Tetrachloroethene (PCE) 9.2 0.50 ug/L 10 ND 92 70-130 2 30 08/21/23 Toluene 9.1 0.50 ug/L 10 ND 91 70-130 30 08/21/23
trans-1,2-Dichloroethene 9.5 0.50 ug/L 10 ND 95 70-130 4 30 08/21/23 trans-1,3-Dichloropropene 9.1 0.50 ug/L 10 ND 91 70-130 30 08/21/23 Trichloroethene (TCE) 9.1 0.50 ug/L 10 ND 91 70-130 3 30 08/21/23 Trichlorofluoromethane 9.2 5.0 ug/L 10 ND 92 70-130 3 30 08/21/23 Vinyl Chloride 9.5 0.50 ug/L 10 ND 95 70-130 4 30 08/21/23 Surrogate: 1,2-Dichlorobenzene-d4 41 82 70-130 08/21/23 Surrogate: Bromofluorobenzene 43 86 70-130 08/21/23
The results in this report apply to the samples analyzed in AGH2460 FINAL 08292023 1404 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 21 of 21
DELLAVALLE™

LABORATORY INC
City of lone Account# 00-0025573 Received: 08/15/2023 10:20 1 East Main Street Account Manager: Lisa Rubin Reported: 08/29/2023 11:09 lone, CA 95640 Submitted By:

Ranch: R5-1993-0240-002
Samples in this Report
Lab ID Sample Matrix Sampled By Crop Date Sampled
23H1310-01 CO MW-1 Monitoring Well Antonio Del-Tech 8/14/2023 10:32 23H1310-02 CO MW-2 Monitoring Well Antonio Del-Tech 8/14/2023 10:01 23H1310-03 CO MW-3 Monitoring Well antonio Del-Tech 8/14/2023 9:22 Default Cooler Temperature on Receipt °C: 8.8
Containers Intact
COC/Labels Agree
Received On Ice
Bott Mtridland
Laboratory Director/Technical Manager
ELAP Certification #1595
ALA Certification #6440.02
The results in this report apply to the samples as received and were analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

All results listed in this report are for the exclusive use of the submitting party. Dellavalle Laboratory, Inc. assumes no responsibility for report alteration, separation, detachment or third 1910 W. McKinley Ave Suite 110 Fresno, CA 93728 559-233-6129 www.dellavallelab.com

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AGH2022
ESK
Bacti Testing
23H1310 - R5-1993-0240-002

ASSOCIATES
Certificate of Analysis City of lone #25573/54
Project: R5-1993-0240-002
Sample ID: AGH2022-01 Sample Date - Time: 08/14/2023 - 10:32 Sampled By: Antonio - Del Tech Matrix: Water
Sample Description: 23H1310-01 // CO MW-1 Sample Type: Routine BSK Associates Laboratory Fresno
Microbiology
Analyte Method Result RL Units Batch Prepared Analyzed Qual Coliform by 3x5 MTF
Total Coliform SM 9221B <1.8 1.8 MPN/100 AGH1063 08/15/23 14:37 08/15/23 14:37 HT1.0 mL
The results in this report apply to the samples analyzed in AGH2022 FINAL 08282023 1657 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 2 of 7
AGH2022
ESK Bacti Testing
23H1310 - R5-1993-0240-002

ASSOCIATES
Certificate of Analysis City of lone #25573/54
Project: R5-1993-0240-002
Sample ID: AGH2022-02 Sample Date - Time: 08/14/2023 - 10:01 Sampled By: Antonio - Del Tech Matrix: Water
Sample Description: 23H1310-02 // CO MW-2 Sample Type: Routine BSK Associates Laboratory Fresno
Microbiology
Analyte Method Result RL Units Batch Prepared Analyzed Qual Coliform by 3x5 MTE
Total Coliform SM 9221B <1.8 1.8 MPN/100 AGH1063 08/15/23 14:37 08/15/23 14:37 HT1.0 mL
The results in this report apply to the samples analyzed in AGH2022 FINAL 08282023 1657 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 3 of 7
AGH2022
ESK Bati Testing
23H1310 - R5-1993-0240-002

ASSOCIATES
Certificate of Analysis City of lone #25573/54
Project: R5-1993-0240-002
Sample ID: AGH2022-03 Sample Date - Time: 08/14/2023 - 09:22 Sampled By: Antonio - Del Tech Matrix: Water
Sample Description: 23H1310-03 // CO MW-3 Sample Type: Routine BSK Associates Laboratory Fresno
Microbiology
Analyte Method Result RL Units Batch Prepared Analyzed Qual Coliform by 3x5 MTE
Total Coliform SM 9221B 2 1.8 MPN/100 AGH1063 08/15/23 14:37 08/15/23 14:37 HT10 The results in this report apply to the samples analyzed in AGH2022 FINAL 08282023 1657 accordance with the chain of custody document. This
analytical report must be reproduced in its entirety.
www.BSKAssociates.com Page 4 of 7
DELLAVALLE LABORATORY, INC.
08/14/23 14:08 23H1310 1910 W. McKinley Avenue, Suite 110 • Fresno, CA 93728 wwww.dellavallelab.com 559 233-6129 • 800 228-9896 • Fax 559 268-8174 25573 54 No. Samples: 3 No of Bottles: 3
Purchase Order No Bill To: Acct # Cons #
Water Type: [ ] Drinking Water [ ] Wastewater
Results Need By [ ] Ag Water | ] Groundwater [x] Monitoring Well Name: City of lone Other:

Billing Address: 1 East Main Street Analysis and Bottles Required: (Please indicate Analysis) City: lone State: CA Zip: 95640 Total Coliform, MPN (3x5 MTF; SM 9221B) Telephone: 209-274-2412 No E. coli
Cell:

Email: [email protected] (1-100 mL Sterile Plastic w/Na,S2O3) Green bsk per site COPY TO: [email protected]
[email protected] Quarterly
REQUESTED BY: Todd Waklee [ ] Co. Health Dept
PROJECT: R5-1993-0240-002 []RWQCB [X] Copy of Chain
Site: Castle Oak Golf Course ] State Forms [X] QA/QC Documents Sampled By: Antonio 1001 Tech
Date Rec'd
Description of Samples Sampled Sampled Temp °C Field EC 1 CO MW-1 8/14/23 1032 5.8
2 CO MW-2 X425 Lo01 C.4
3 CO MW-3 814/2 922 le:4
4 CHAIN OF CUSTODY
Carrier Signature Company Received Date/Time Relinquished Date/Time First TOL-TRCU 14a 8114123 1:00
Second 1142310 1001 8/15/23 /020
Third
Fourth
I guarantee that as the client, or on behalf of chent named, I have the authority to contract the above requested services Should as be found that I do not have such authority, I agree to be personally hable for all costs and, if there should be action against me for this breach, reasonable attorneys' fees it is understood that payment is expected to be cash with samples unless terms have been previously arranged Terms are net 30 days, overdue accounts will be charged a liquidated damage fee of 2% per month (annually 24%) or $5 00 per month whichever is greater If payment is not made when due and a legitimate dispute exists concerning the product or services of Dellavalle Laboratory, Inc, it will be submitted to mediation under the Rules and Procedures of Creative Alternative to Litigation, inc (cal) If the dispute is not resolved in mediation, then the dispute will be submutted to binding arbitration through cal under its Rules and Procedures The parties will equally bear the costs of mediation arbitration it, however, the medrator declares that no legitimate dispute exists, then debtor will pay all mediation and arbitration costs, and in the event of artetration. reasonable attoreys" fees of Dellavalle Laboratory
Lisa will invoice Signature
Sample received in, cooler with ice (coolant)
1/Yes [ ] No
X 11-CLIENT CUSTOM FIELDSHEETSIFIELDSHEETSIWATERSICity of lone CO MW Quarterly Total Coliform 1 14.2023

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08/15/23 10:20 23H1310
Shipping Information: Shipped In q Picked-Ups, Walk In to DLI Sampler • Other o Container: Ice Chest o Box o None o Refrigerant: Wet Ice by Blue Ice o None o Samples Preserved with HNO, or H¿SO, were: • Received Preserved c Preserved Upon Receipt at Laboratory Sample Number
Type of Container(s) Received
2 5
Sample Containers for Internal (DLI) Use
(Containers that go into the Lab)
100 mL sterile plastic Na,S203 (Green)
250 mL unpreserved (White) Plastic
250 mL HNO, (Red) Plastic
pH Value
Plastics 250 mL H2504 (Yellow) Plastic
pH Value
500 mL unpreserved (White) Plastic
1 L unpreserved (White) Plastic
L unpreserved (BOD) (Purple) Plastic
500mL unpreserved (White) Glass
Special PO4-P Kit
Other:

Sample Containers for Subcontracted ("Send Out") Analyses Containers that go in the Subcontract ("Send Out") Refrigerator 100 mL sterile plastic Na,S2Oz (Green)
250 mL unpreserved (White) Plastic 13815,23
50 mL HNO3 (Red) Plastic
250 mL H2SO, (Yellow) Plastic
Plastics 500 mL HNO; (Red)
1 L unpreserved (White) Plastic
1 L unpreserved (BOD) (Purple) Plastic
I L HNO, (Red)
40 mL VOA, NazS203 + MCAA (EPA531)
40 mL VOA, Na,5203 (EPA547)
40mL AG VOA unpreserved (White) (Set of 3)
VOA Vials 40 mL AG VOA, Na,S,O, (Green) (Set of 3)
40mL VOA, HzPO4 (Set of 3)
40 mL VOA, HCI (Blue) (Set of 3)
40 mL VOA, Na,S,03 (Green) (Set of 3)
250 mL AG unpreserved (White)
250 mL AG H,SO, (Yellow)
250 mL AG Na,S2O3 (Green)
250 mL AG Na2S203 + MCAA
500 mL glass unpreserved (White)
500 mL AG HCI (Blue)
1 L AG unpreserved (White)
1 L AG H2SO, (Yellow)
TL AG Na,S203 (Green)
1 L AG HCI (Blue)
Cr - 50mL Plastic w/Borate/HCO/CO3
Cyanide - 500 mL NaOH
Asbestos - 1L P wrapped in foil (Set of 2)
Sulfide - 1 L AG or P NaOH + ZnAc
Chlorite/Bromate - 250 mL AG with EDA
HAA5 - 250mL AG Ammonium Chlorite
DO KIT
Other:

Other:

C:UsersILRubin\DropboxILISA CLIENTS 2021ICITY OF IONElfieldsheets/2023 castle oak newCity of lone Castle Oak MW Quarterly Total Coliform R5-1993-0240-002

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SUBCONTRACT
DELLAVALLE™
LABORATORY INC 08/15/23 10:20 23H1310
Sending Laboratory: Subcontracted Laboratory:

Dellavalle Laboratory Inc. After Hours Contact: BSK & Associates - Stanisiaus 1910 McKinley, Ste. 110 687 N. Laverne
Fresno, CA 93728-1298 Susan Villagran Fresno, CA 93727
Phone: (559) 233-6129 559-530-1346 Phone: (559) 497-2888 Fax: (559) 268-8174 Martin James Fax: 559 485-6935
559-940-2024
Attn: Kaitlynn Shaw PO# 58823 Turnaround: Standard Rush _ [email protected] State Forms: Yes No < Sys#
Work Order: 23H1310 Project: R5-1993-0240-002
Analysis
Sample ID: 23H1310-01 Monitoring Well Sampled: 8/14/2023 10:32AM Client Sample Name: CO MW -1 Sampled By: Antonio Del-Tech Comments
Coli 3x5 Total Coli: SO
Containers Supplied:

Sample ID: 23H1310-02 Monitoring Well Sampled: 8/14/2023 10:01AM Client Sample Name: CO MW-2 Sampled By: Antonio Del-Tech Comments
Coli 3x5 Total Coli:SO
Containers Supplied:

Sample ID: 23H1310-03 Monitoring Well Sampled: 8/14/2023 9:22AM Client Sample Name: CO MW-3 Sampled By: antonio Del-Tech Comments
Coli 3x5 Total Coli:SO
Containers Supplied:
i to run out of hoi! time
Released By Date Received By Date
Released By Date Received By Date

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End of Report

Ione City CouncilNovember 21, 2023

Ione City Council
November 21, 2023