/
DB
Dennis ByrneLAB DIRECTOR

COC-2026-0379

Chain of Custody · 2 containers · Sampling event SE-2026-0379

Project & Site

ClientVHB Engineering
ProjectUnderground Storage Tank Closure — Nashua (VHB-UST-NASH)
SiteNashua UST Site MW-2 (VHB-UST-MW2)
Site typedrinking well
SamplerMaria Gonzalez
CollectedJun 1, 2026 03:32
WeatherOvercast
Air temp5.4 °C

CoC barcode

Barcode COC-2026-0379
Code 128

Shipping & Cooler

CarrierClient
Tracking
Cooler IDCLR-890
Cooler temp blank2.1 °C
Tamper seals100769,100770
Seals intact on arrival

Field Readings

pH7.40
Cond (µS/cm)241
DO (mg/L)9.93
Temp (°C)16.5
ORP (mV)268
Turb (NTU)4.25

Captured per ISO 5667 at the point of collection

Groundwater Purge

Purge volume33.1 L
Drawdown0.36 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 1, 2026 04:32Endyne CourierJun 1, 2026 05:12Maria Gonzalez / T. Hill

Container manifest (2)

AccessionContainerPres.MatrixVolReceipt cond.pH chkTests
ENV-2026-0480140mL VOA vialHClWATER40INTACT1.6EPA 8260C
ENV-2026-048021L amber glassicedWATER1000INTACTn/aEPA 8015C