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Dennis ByrneLAB DIRECTOR

COC-2026-0323

Chain of Custody · 3 containers · Sampling event SE-2026-0323

Project & Site

ClientWhitman & Sons (Homeowner)
ProjectPrivate Well Annual (WHITMAN-WELL)
SiteWhitman Residence — Drilled Well (WHITMAN-W1)
Site typedrinking well
SamplerMaria Gonzalez
CollectedJun 5, 2026 22:32
WeatherCold/clear
Air temp16.1 °C

CoC barcode

Barcode COC-2026-0323
Code 128

Shipping & Cooler

CarrierClient
Tracking
Cooler IDCLR-455
Cooler temp blank4.7 °C
Tamper seals100657,100658
Seals intact on arrival

Field Readings

pH7.49
Cond (µS/cm)767
DO (mg/L)8.54
Temp (°C)13.5
ORP (mV)323
Turb (NTU)2.94

Captured per ISO 5667 at the point of collection

Groundwater Purge

Purge volume14.5 L
Drawdown0.46 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
1Maria GonzalezJun 6, 2026 00:32Endyne CourierJun 6, 2026 00:51Maria Gonzalez / T. Hill

Container manifest (3)

AccessionContainerPres.MatrixVolReceipt cond.pH chkTests
ENV-2026-0467940mL VOA vialHClWATER40INTACT1.6EPA 524.2
ENV-2026-04680250mL HDPEHNO3WATER250INTACT1.6EPA 200.8
ENV-2026-04681120mL sterileicedWATER120INTACTn/aSM 9223B