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York Environmental Labs Technical Report — August 2025

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Technical Report

prepared for:

Village of Red Hook

7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Report Date: 08/22/2025 Client Project ID: Wastewater 2025 York Project (SDG) No.: N5H0346

CT Cert. No. PH-0800

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New York Cert. No. 11706

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com

www.YORKLAB.com

Page 1 of 10

Report Date: 08/22/2025

Client Project ID: Wastewater 2025 York Project (SDG) No.: N5H0346

Village of Red Hook 7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Purpose and Results

This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received in our laboratory on August 13, 2025 and listed below. The project was identified as your project: Wastewater 2025 .

The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables.

All samples were received in proper condition meeting the customary acceptance requirements for environmental samples except those indicated under the Sample and Analysis Qualifiers section of this report.

All analyses met the method and laboratory standard operating procedure requirements except as indicated by any data flags, the meaning of which are explained in the Sample and Data Qualifiers Relating to This Work Order section of this report and case narrative if applicable.

Please contact Client Services at 203-270-9973 with any questions regarding this report.

York Sample IDClient Sample ID-Date CollectedDate Received
N5H0346-01Matrix-08/13/202508/13/2025
N5H0346-02A1 E-08/13/202508/13/2025
N5H0346-03Waste Water-08/13/202508/13/2025
N5H0346-04A2 E-08/13/202508/13/2025
N5H0346-05Waste Water-08/13/202508/13/2025
N5H0346-06A3 E-08/13/202508/13/2025
N5H0346-07Waste Water-08/13/202508/13/2025
N5H0346-08A4 E-08/13/202508/13/2025
N5H0346-09Waste Water-08/13/202508/13/2025
N5H0346-10A5 I-08/13/202508/13/2025
N5H0346-11Waste Water-08/13/202508/13/2025
N5H0346-12A6 I-08/13/202508/13/2025
N5H0346-13Waste Water-08/13/202508/13/2025
N5H0346-14A7 I-08/13/202508/13/2025
-Waste Water---
-B1 E---
-Waste Water---
-B2 E---
-Waste Water---
-B3 E---
-Waste Water---
-B4 E---
-Waste Water---
-B5 I---
-Waste Water---
-B6 I---
-Waste Water---
-B7 I---
-Waste Water---

Page 2 of 10

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|||Sample Information||[TOC_2]A1 E[TOC] [TOC 1]Sample Results[TOC]|[TOC_2]A1 E[TOC] [TOC 1]Sample Results[TOC]|[TOC_2]A1 E[TOC] [TOC 1]Sample Results[TOC]| |---|---|---|---|---|---|---| |Client Sample ID:|A1 E|||York Sample|ID:|N5H0346-01| |York Project (SDG)|No.|Client Project ID|Matrix|Collection Date/Time||Date Received| |N5H0346||Wastewater 2025|Waste Water|August 13, 2025 10:40|am|08/13/2025| |Field Analyses:|||Log-in/Sample Notes:||||

| Phoenix Environmental Labs, Inc. | Results | | Analysis Conducted by: | Analyst | | [TOC_3]SM5210B-16[TOC] | Analyzed | | Units | Date/Time | | Result | Prepared | | Parameter | Date/Time | | Qualifier | Reference Method | | - | MCL |

-RL
-NY-11301
-Certifications:
-SM5210B-16
-08/14/2025 13:15
-08/14/2025 13:15
-PHO
-4.00
< 4.0
Carbonaceous BOD
mg/L
A2 E
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:40 am
Waste Water
Wastewater 2025
[TOC_2]A2 E[TOC]
08/13/2025
N5H0346-02
Field Analyses:
Log-in/Sample Notes:

| [TOC_3]Miscellaneous Physical Parameters[TOC] | - | Results | | Units | - | Analyst | | Result | - | Analyzed | | Parameter | - | Date/Time | | Qualifier | - | Prepared | | - | - | Date/Time | | - | - | Reference Method | | - | - | MCL | | - | - | RL | | - | - | SMM | | - | - | 08/15/2025 06:04 | | - | - | 08/15/2025 13:27 | | - | - | SM 2540D-2015 | | - | - | Certifications: |

--NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
--1.00
mg/L
Total Suspended Solids
1.40
Z-01
A3 E
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:40 am
Waste Water
Wastewater 2025
[TOC_2]A3 E[TOC]
08/13/2025
N5H0346-03
Field Analyses:
Log-in/Sample Notes:

| [TOC_3]Wet Chemistry Parameters[TOC] | Results | | Units | Analyst | | Result | Analyzed | | Parameter | Date/Time | | Qualifier | Prepared | | - | Date/Time | | - | Reference Method | | - | MCL | | - | RL | | - | TCD | | - | 08/14/2025 09:04 | | - | 08/14/2025 09:04 | | - | SM 4500-NH3 D | | - | Certifications: |

-NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
-0.05
-SMM
-08/14/2025 07:20
-08/15/2025 09:00
-SM 4500-N Org D
-Certifications:
-NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
--
-0.40
mg/L
Ammonia Nitrogen as N
0.0963
mg/L
Total Kjeldahl Nitrogen
1.30

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 3 of 10

www.YORKLAB.com

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Sample Information[TOC_2]A4 E[TOC][TOC_2]A4 E[TOC]
Client Sample ID:A4 EYork SampleID:N5H0346-04
York Project (SDG)No.Client Project IDMatrixCollection Date/TimeDate Received
N5H0346Wastewater 2025Waste WaterAugust 13, 2025 10:40am08/13/2025
Field Analyses:Log-in/Sample Notes:

| Phoenix Environmental Labs, Inc. | Results | | Analysis Conducted by: | Analyst | | [TOC_3]Colilert-18[TOC] | Analyzed | | Units | Date/Time | | Result | Prepared | | Parameter | Date/Time | | Qualifier | Reference Method | | - | MCL |

-RL
-NY-11301
-Certifications:
-Colilert-18
-08/13/2025 18:10
-08/13/2025 10:40
-PHO
-10.00
<10
Fecal Coliforms MPN
MPN/100
mls
Sample Information[TOC_2]A5 I[TOC][TOC_2]A5 I[TOC]
Client Sample ID:A5 IYork SampleID:N5H0346-05
York Project (SDG)No.Client Project IDMatrixCollection Date/TimeDate Received
N5H0346Wastewater 2025Waste WaterAugust 13, 2025 10:40am08/13/2025
Field Analyses:Log-in/Sample Notes:

Analysis Conducted by: Phoenix Environmental Labs, Inc.

| [TOC_3]SM5210B-16[TOC] | Results | | Units | Analyst | | Result | Analyzed | | Parameter | Date/Time | | Qualifier | Prepared | | - | Date/Time | | - | Reference Method | | - | MCL | | - | RL | | - | PHO | | - | 08/14/2025 13:15 | | - | 08/14/2025 13:15 | | - | SM5210B-16 | | - | Certifications: |

-NY-11301
-46.00
mg/L
Carbonaceous BOD
99
A6 I
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:40 am
Waste Water
Wastewater 2025
[TOC_2]A6 I[TOC]
08/13/2025
N5H0346-06
Field Analyses:
Log-in/Sample Notes:

| [TOC_3]Miscellaneous Physical Parameters[TOC] | Results | | Units | Analyst | | Result | Analyzed | | Parameter | Date/Time | | Qualifier | Prepared | | - | Date/Time | | - | Reference Method | | - | MCL | | - | RL | | - | SMM | | - | 08/15/2025 06:04 | | - | 08/15/2025 13:27 | | - | SM 2540D-2015 | | - | Certifications: |

-NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PA
-5.00
mg/L
Total Suspended Solids
64.0

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 4 of 10

www.YORKLAB.com

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Sample Information[TOC_2]A7 I[TOC][TOC_2]A7 I[TOC]
Client Sample ID:A7 IYork SampleID:N5H0346-07
York Project (SDG)No.Client Project IDMatrixCollection Date/TimeDate Received
N5H0346Wastewater 2025Waste WaterAugust 13, 2025 10:40am08/13/2025
Field Analyses:Log-in/Sample Notes:

Results

|Parameter|Result|Units|Qualifier|RL|MCL|Analyst Analyzed Date/Time Prepared Date/Time Reference Method| |---|---|---|---|---|---|---| |Ammonia Nitrogen as N|45.0|mg/L||0.10|-|TCD 08/14/2025 09:04 08/14/2025 09:04 SM 4500-NH3 D| |||||||Certifications: NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD| |Total Kjeldahl Nitrogen|45.2|mg/L||0.40|-|SMM 08/14/2025 07:20 08/15/2025 09:00 SM 4500-N Org D| |||||||Certifications: NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD|

B1 E
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:55 am
Waste Water
Wastewater 2025
[TOC_2]B1 E[TOC]
08/13/2025
N5H0346-08
Field Analyses:
Log-in/Sample Notes:

| Phoenix Environmental Labs, Inc. | Results | | Analysis Conducted by: | Analyst | | [TOC_3]SM5210B-16[TOC] | Analyzed | | Units | Date/Time | | Result | Prepared | | Parameter | Date/Time | | Qualifier | Reference Method | | - | MCL |

-RL
-NY-11301
-Certifications:
-SM5210B-16
-08/14/2025 13:15
-08/14/2025 13:15
-PHO
-4.00
< 4.0
Carbonaceous BOD
mg/L
B2 E
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:55 am
Waste Water
Wastewater 2025
[TOC_2]B2 E[TOC]
08/13/2025
N5H0346-09
Field Analyses:
Log-in/Sample Notes:

| [TOC_3]Miscellaneous Physical Parameters[TOC] | - | Results | | Units | - | Analyst | | Result | - | Analyzed | | Parameter | - | Date/Time | | Qualifier | - | Prepared | | - | - | Date/Time | | - | - | Reference Method | | - | - | MCL | | - | - | RL | | - | - | SMM | | - | - | 08/18/2025 08:17 | | - | - | 08/18/2025 13:53 | | - | - | SM 2540D-2015 | | - | - | Certifications: |

--NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
--1.00
mg/L
Total Suspended Solids
7.80

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348 ClientServices@yorklab.com Page 5 of 10

www.YORKLAB.com

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B3 E
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:55 am
Waste Water
Wastewater 2025
[TOC_2]B3 E[TOC]
08/13/2025
N5H0346-10
Field Analyses:
Log-in/Sample Notes:

| [TOC_3]Wet Chemistry Parameters[TOC] | Results | | Units | Analyst | | Result | Analyzed | | Parameter | Date/Time | | Qualifier | Prepared | | - | Date/Time | | - | Reference Method | | - | MCL |

-RL
-NYSDOH-NY10854,CTDPH-PH-0840,NJDE
-Certifications:
-SM 4500-NH3 D
-08/14/2025 09:04
-08/14/2025 09:04
-TCD
-0.05
-SMM
-08/14/2025 07:20
-08/15/2025 09:00
-SM 4500-N Org D
-Certifications:
-NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
--
-0.40
< 0.0500
Ammonia Nitrogen as N
mg/L
mg/L
Total Kjeldahl Nitrogen
2.15
B4 E
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:55 am
Waste Water
Wastewater 2025
[TOC_2]B4 E[TOC]
08/13/2025
N5H0346-11
Field Analyses:
Log-in/Sample Notes:

Analysis Conducted by: Phoenix Environmental Labs, Inc.

| [TOC_3]Colilert-18[TOC] | [TOC_3]Colilert-18[TOC] | Results | Analyst | | Units | Units | R | Analyzed | | Result | Result | MCL | Date/Time | | Parameter | Parameter | RL | Prepared | | Qualifier | Qualifier | - | Date/Time | | - | - | - | eference Method | | - | - | - | PHO | | - | - | - | 08/13/2025 10:55 | | - | - | - | 08/13/2025 18:45 | | - | - | - | olilert-18 | | - | - | - | Certifications: | | - | - | - | NY-11301 | |MPN/100 mls Fecal Coliforms MPN 10||C

10.00|| ||||| B5 I York Project (SDG) No. N5H0346 York Sample ID: Sample Information Client Project ID Client Sample ID: Matrix Collection Date/Time Date Received August 13, 2025 10:55 am Waste Water Wastewater 2025 [TOC_2]B5 I[TOC] 08/13/2025 N5H0346-12 Field Analyses: Log-in/Sample Notes:

Analysis Conducted by: Phoenix Environmental Labs, Inc.

Results

|Parameter|Result|Units|Qualifier|RL|MCL|Reference Method|Prepared Date/Time|Analyzed Date/Time|Analyst| |---|---|---|---|---|---|---|---|---|---| |Carbonaceous BOD|84|mg/L||46.00|-|SM5210B-16|08/14/2025 13:15|08/14/2025 13:15|PHO| |||||||Certifications: NY-11301||||

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 6 of 10

www.YORKLAB.com

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B6 I
York Project (SDG) No.
N5H0346
York Sample ID:
Sample Information
Client Project ID
Client Sample ID:
Matrix
Collection Date/Time
Date Received
August 13, 2025 10:55 am
Waste Water
Wastewater 2025
[TOC_2]B6 I[TOC]
08/13/2025
N5H0346-13
Field Analyses:
Log-in/Sample Notes:

| [TOC_3]Miscellaneous Physical Parameters[TOC] | Results | | Units | Analyst | | Result | Analyzed | | Parameter | Date/Time | | Qualifier | Prepared | | - | Date/Time | | - | Reference Method | | - | MCL | | - | RL | | - | SMM | | - | 08/18/2025 08:17 | | - | 08/18/2025 13:53 | | - | SM 2540D-2015 | | - | Certifications: |

-NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
-7.14
mg/L
Total Suspended Solids
119
Sample InformationSample InformationSample Information[TOC_2]B7 I[TOC][TOC_2]B7 I[TOC]
Client Sample ID:B7 IYork Sample ID:N5H0346-14
York Project (SDG) No.Client Project IDMatrixCollection Date/Time
Date Received
N5H0346Wastewater 2025Waste WaterAugust13, 2025 10:55 am08/13/2025
Field Analyses:Log-in/Sample Notes:
[TOC_3]Wet ChemistryParameters[TOC]Results
ParameterResultUnitsQualifierRLMCLReference MethodAnalyzed
Date/Time
Prepared
Date/TimeAnalyst
Ammonia Nitrogen as N7.07mg/L0.05-SM 4500-NH3 D08/14/202509:04
08/14/2025 09:04TCD
Certifications:NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD
Total Kjeldahl Nitrogen21.5mg/L0.40-SM 4500-N Org D08/14/202507:20
08/15/2025 09:00SMM
Certifications:NYSDOH-NY10854,CTDPH-PH-0840,NJDEP-CT005,PAD

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 7 of 10

www.YORKLAB.com

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Definitions and Other Information

Z-01 mg residue is less than 2.5 mg

<10 <10

Analyte is not certified or the state of the samples origination does not offer certification for the Analyte.

MCL The Maximum Contaminant Level (MCL) is the maximum concentration of a chemical that is allowed in public drinking water systems. The MCL is established by the U.S. Environmental Protection Agency (EPA). Some states have MCLs that are equal to or less than the Federally established MCL. The listed MCL value reflects the MCL established by the State where the sample was taken.

General Notes for N5H0346

  1. The RLs and MDLs (Reporting Limit and Method Detection Limit respectively) reported are adjusted for any dilution necessary due to the levels of target and/or non-target analytes and matrix interference. The RL(REPORTING LIMIT) is based upon the lowest standard utilized for the calibration where applicable.

  2. Samples are retained for a period of thirty days after submittal of report, unless other arrangements are made.

  3. York's liability for the above data is limited to the dollar value paid to York for the referenced project.

  4. This report shall not be reproduced without the written approval of York Analytical Laboratories, Inc.

  5. All analyses conducted met method or Laboratory SOP requirements. See the Sample and Data Qualifiers Section for further information.

  6. It is noted that no analyses reported herein were subcontracted to another laboratory, unless noted in the report.

  7. This report reflects results that relate only to the samples submitted on the attached chain-of-custody form(s) received by York.

Approved By:

Cassie Mosher Chemistry Director Phil Murphy Interim Microbiology Director

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Date: August 22, 2025

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 8 of 10

www.YORKLAB.com

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56 Church Hill Road #2 Newtown, CT 06470 (203) 270-9973 FAX (203) 270-3348 ClientServices@yorklab.com Page 9 of 10

www.YORKLAB.com

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