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Dennis ByrneLAB DIRECTOR

COC-2026-0350

Chain of Custody · 2 containers · Sampling event SE-2026-0350

Receipt anomalies on this CoC
  • Tamper seal(s) reported broken on arrival
  • Tamper seal #100712 absent on arrival — documented and continued per QA-SOP-04.

Project & Site

ClientVHB Engineering
ProjectUnderground Storage Tank Closure — Nashua (VHB-UST-NASH)
SiteNashua UST Site MW-2 (VHB-UST-MW2)
Site typedrinking well
SamplerRiley Thomas
CollectedMay 27, 2026 03:32
WeatherSnow
Air temp6.0 °C

CoC barcode

Barcode COC-2026-0350
Code 128

Shipping & Cooler

CarrierUPS
Tracking1ZFB575WBNNDL4AL9Y
Cooler IDCLR-818
Cooler temp blank4.3 °C
Tamper seals100711,100712
Seals broken — documented in narrative

Field Readings

pH7.98
Cond (µS/cm)794
DO (mg/L)8.01
Temp (°C)9.9
ORP (mV)130
Turb (NTU)0.95

Captured per ISO 5667 at the point of collection

Groundwater Purge

Purge volume23.2 L
Drawdown0.57 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 ThomasMay 27, 2026 05:32Endyne CourierMay 27, 2026 06:02Riley Thomas / T. Hill

Container manifest (2)

AccessionContainerPres.MatrixVolReceipt cond.pH chkTests
ENV-2026-0473240mL VOA vialHClWATER40INTACT1.6EPA 8260C
ENV-2026-047331L amber glassicedWATER1000INTACTn/aEPA 8015C