Analytical Lab Report — Wastewater samples — June 2025 (York Lab)

Appendix B

SECTION 1

New York State Department of Environmental Conservation Division of Water

Te Report of Noncompliance Event

To: DEC Water Contact Vijay Gandhi DEC Region: 3 Report Type: 5 Day Permit Violation Order Violation Anticipated Noncompliance Bypass/Overflow Other

SECTION 2

SPDES #: NY- 0271420 Facility: Village of Red Hook WWTP Date of noncompliance: 06/05/2025 Location (Outfall, Treatment Unit, or Pump Station): 1B Outfall 1B was placed in service and TSS and setteable solids were exceeded due to start up issues. Description of noncompliance(s) and cause(s):

Has event ceased? Yes If so, when? 6/7/2025 Was event due to plant upset? Yes SPDES limits violated? Yes 06/05/2025 am 06/07/2025 am Start date, time of event: , End date, time of event: Date, time oral notification made to DEC? , am DEC Official contacted: Immediate corrective actions: stopped the high recycle flow from the mudwell to stop the clarifier washout.

Preventive (long term) corrective actions: need to direct the sand filter mudwell flow to the proposed larger EQ tank

SECTION 3

Complete this section if event was a bypass: No Bypass amount: Was prior DEC authorization received for this event? DEC Official contacted: Date of DEC approval: Describe event in "Description of noncompliance and cause" area in Section 2. Detail the start and end dates and times in Section 2 also. SECTION 4 Facility Representative: Roberto Flores Title: Chief Operator Date:

July 22, 2025

518 469 - 8189 Phone #: ( ) Fax #: ( )

I Certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

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SIGN ----- End of picture text -----

Signature of Principal Executive Officer or Authorized Agent

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ANALYTICAL LABORATORIES INC ----- End of picture text -----

prepared for:

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

Report Date: 06/29/2025 Client Project ID: Wastewater 2025 York Project (SDG) No. : N5F0167

www . YORKLAB . com

g ACCRED, iD, CT Cert. No. PH-0800 C C ’ New York Cert. No. 11706 56 Church Hill Road #2 7 Newtown, CT 06470 (203) 270 - 9973 FAX (203) 270 - 3348 ClientServices@yorklab . com

Report Date: 06/29/2025 Client Project ID: Wastewater 2025 York Project (SDG) No.: NSF0167

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 - o f- custody received in our laboratory on June 05, 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 ID|Client Sample ID Matrix Date Collected Date Received| |---|---| |N5F0167~~-01|Al E POST UV WasteWater 06/05/2025 06/05/2025| |N5F0167-02|A2 E POST UV Waste Water 06/05/2025 06/05/2025| |N5F0167-03|A3 E POST UV WasteWater 06/05/2025 06/05/2025| |N5F0167-05|A5ITEQ WasteWater 06/05/2025 06/05/2025| |N5F0167-06|A61LEQ Waste Water 06/05/2025 06/05/2025| |N5F0167-07|ATIEQ Waste Water 06/05/2025 06/05/2025| |N5F0167-08|B1 E PostUV WasteWater 06/05/2025 06/05/2025| |N5F0167-09|B2 E POST UV Waste Water 06/05/2025 06/05/2025| |N5F0167-1~~0|B3EPOSTUV WasteWater 06/05/2025 06/05/2025|

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ANALYTICAL LABORATORIES INC

|Client SampleID: Al E POST UV York Project (SDG) No. N5FO0167 FieldAnalyses:|Client SampleID: Al E POST UV York Project (SDG) No. N5FO0167 FieldAnalyses:|Client SampleID: Al E POST UV York Project (SDG) No. N5FO0167 FieldAnalyses:||Sample Information Client Project ID Wastewater 2025|Sample Information Client Project ID Wastewater 2025|Sample Information Client Project ID Wastewater 2025|Sample Information Client Project ID Wastewater 2025|Matrix Waste Water Log~~-in/Sample Notes:|York Sample ID: Collection Date/Time June 5, 2025 7:45 am|N5F0167-01 Date Received 06/05/2025| |---|---|---|---|---|---|---|---|---|---|---| |||||||Results||||| | Parameter | - | - | Result | Units | Qualifier | RL | Date/Ti | NELAC-NY10854,CTDOH-PH-0723, NJDEP-CT005,PADE | NELAC-NY10854,CTDOH-PH-0723,NJDEP-CT005,PADE | | AmmoniaNitrogen asN | - | - | 0.513 | mg/L | - | 0.05 | Date/Ti | - | - | | TotalKjeldahl Nitrogen | - | - | 3.01 | mg/L | - | 0.40 | MCL__ Reference Method | SM4500-NOrgD | - | | - | - | - | - | - | - | - | Prepared mme | 06/06/2025 13:59 | - | | - | - | - | - | - | - | - | Analyzed wme | 06/09/2025 13:11 | - | | - | - | - | - | - | - | - | Analyst | TCD | - | | - | - | - | - | - | - | - | - | Certifications: | - | | - | - | - | - | - | - | - | SM4500-NH3D | - | - | | - | - | - | - | - | - | - | 06/06/2025 09:54 | - | - | | - | - | - | - | - | - | - | 06/06/2025 09:54 | - | - | | - | - | - | - | - | - | - | TCD | - | - | | - | - | - | - | - | - | - | Certifications; | - | - | |Client SampleID: A2E POST UV York Project (SDG) No. N5F0167 FieldAnalyses:||||Sample Information Client Project ID Wastewater 2025||||Matrix Waste Water Log-in/Sample Notes:|York Sample ID: Collection Date/Time June 5, 2025 7:45 am|N5F0167-02 Date Received 06/05/2025| |Analysis Conducted by:||PhoenixEnvironmental||Labs, Inc.||Results||||| | Parameter | - | - | Result | Units | Qualifier | RL | Date/Ti | - | - | Analyst | | Carbonaceous BOD | - | - | <4.0 | mg/L | - | 4.00 | Date/Ti | - | - | PHO | | - | - | - | - | - | - | - | MCL__ Reference Method | - | - | - | | - | - | - | - | - | - | - | Prepared ime | - | - | - | | - | - | - | - | - | - | - | Analyzed tme | - | - | - | | - | - | - | - | - | - | - | - | - | - | - | | - | - | - | - | - | - | - | SM5210B-16 | - | - | - | | - | - | - | - | - | - | - | 06/06/2025 13:30 | - | - | - | | - | - | - | - | - | - | - | 06/06/2025 13:30 | - | - | - | | - | - | - | - | - | - | - | Certifications: | - | - | - | ||||||Sample Information|||||| |Client Sample ID:|A3 E POST UV||||||||York Sample ID:|N5F0167-03| |York Project (SDG) No.||||Client Project ID||||Matrix|Collection Date/Time|Date Received| |N5F0167||||Wastewater|2025|||Waste Water|June 5, 2025 7:45 am|06/05/2025| |Field Analyses:||||||||Log-in/Sample Notes:||| |||||||Results||||| |Parameter|||Result|Units|Qualifier|RL|MCL__ Reference Method||Date/Ti Date/Ti Prepared wme Analyzed wme|Analyst| |TotalSuspended Solids|||7.56|mg/L||2.22|-|SM2540D-2015 06/06/202506:15 06/06/2025 12:50 SMM Certifications:|NELAC-NY10854,CTDOH-PH-0723,NJDEP-~~CT005,PADE|||

]

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

Newtown, CT 06470 FAX (203)(203) 270270 - 334-3348 ClientServicesf

www.YORKLAB.com

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ANALYTICAL LABORATORIES INC

| Client Sample ID: | Client Sample ID: | - | Sample Information | Sample Information | Sample Information | Sample Information | Matrix | York Sample ID: | York Sample ID: | | AS5IEQ | AS5IEQ | - | Client Project ID | Client Project ID | Client Project ID | Client Project ID | Waste Water | N5F0167~~-05 | N5F0167-05 | | York Project (SDG) No. | York Project (SDG) No. | - | Wastewater 2025 | Wastewater 2025 | Wastewater 2025 | Wastewater 2025 | Log-in/Sample Notes: | Collection Date/Time | Collection Date/Time | | N5F0167 | N5F0167 | - | - | - | - | - | - | Date Received | Date Received | | FieldAnalyses: | FieldAnalyses: | - | - | - | - | - | - | June 5, 2025 | June 5, 2025 | | - | - | - | - | - | - | - | - | 7:45 am | 7:45 am | | - | - | - | - | - | - | - | - | 06/05/2025 | 06/05/2025 | ||||||Results||||| | Parameter | - | Result | Units | Qualifier | RL | Date/Ti | NELAC-NY10854,CTDOH-PH-0723, NIDEP-CT005,PADI | NELAC-NY10854,CTDOH-PH-0723,NJDEP-CT005,PADF | | AmmoniaNitrogen asN | - | 67.2 | mg/L | - | 0.50 | Date/Ti | - | - | | TotalKjeldahl Nitrogen | - | 67.5 | mg/L | - | 0.40 | MCL__ Reference Method | SM4500-NOrgD | - | | - | - | - | - | - | - | Prepared wme | 06/06/2025 13:59 | - | | - | - | - | - | - | - | Analyred tme | 06/09/2025 13:11 | - | | - | - | - | - | - | - | Analyst | TCD | - | | - | - | - | - | - | - | - | Certifications: | - | | - | - | - | - | - | - | SM4500-~~NH3D | - | - | | - | - | - | - | - | - | 06/06/2025 09:54 | - | - | | - | - | - | - | - | - | 06/06/2025 09:54 | - | - | | - | - | - | - | - | - | TCD | - | - |

]

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

Newtown, CT 06470 FAX (203)(203) 270270 - 334-3348

www.YORKLAB.com

ClientServicesf

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

Newtown, CT 06470 FAX (203)(203) 270270 - 334-3348

www.YORKLAB.com

ClientServicesf

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ANALYTICAL LABORATORIES INC

Definitions and Other Information

• <4.7 <4.7

< 4.0 < 4.0

• 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 N5F0167

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 -t arget 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.

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

4. 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 - o f- custody form(s) received by York.

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Approved By: Cassie Mosher y WO Chemistry Director InterimPhil MurphyMicrobiology Director (D4ae U7Wary by Wi ----- End of picture text -----

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Date: June 29, 2025 ----- End of picture text -----

56 Church Hill Road #2 ] Newtown, CT 06470 (203) 270-9973 FAX (203) 270-3348

www.YORKLAB.com

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