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DB
Dennis ByrneLAB DIRECTOR

COC-2026-99409

Chain of Custody · 1 containers · Sampling event SE-2026-99850

Project & Site

ClientBurlington Department of Public Works
ProjectPFAS Source Investigation — North End (BURL-PFAS-2026)
SiteRiverside Well #1 (BURL-PFAS-W1)
Site typedrinking well
SamplerRiley Thomas
CollectedJun 9, 2026 09:32
Weather
Air temp5.5 °C

CoC barcode

Barcode COC-2026-99409
Code 128

Shipping & Cooler

CarrierClient
Tracking
Cooler IDCLR-553
Cooler temp blank4.8 °C
Tamper seals100085,100086
Seals intact on arrival

Field Readings

pH7.16
Cond (µS/cm)793
DO (mg/L)7.77
Temp (°C)8.0
ORP (mV)267
Turb (NTU)2.80

Captured per ISO 5667 at the point of collection

Groundwater Purge

Purge volume21.5 L
Drawdown0.41 m
Pump rate0.5 L/min
Stabilized3 well volumes

Low-flow purge per ASTM D6452

Custody transfers (1)

#Relinquished byRelinquished atReceived byReceived atSig from / to
1Riley ThomasJun 9, 2026 11:32Endyne CourierJun 9, 2026 12:26 /

Container manifest (1)

AccessionContainerPres.MatrixVolReceipt cond.pH chkTests
ENV-2026-04082250mL polypropyleneicedWATER250INTACTn/aEPA 537.1