Containers and Preservatives - Organics

Water

Volatile Organics

Minimum Sample

Container

Holding Time

Preservative

EPA 8240/8260/624

3 x 40 mL

EPA Septum Vials

14 days

*4 C, No Headspace

Trihalomethanes

3 x 40 mL

EPA Septum Vials

14 days

*4 C, No Headspace

BTEX and/or Purgeable Hydrocarbons

3 x 40 mL

EPA Septum Vials

14 days

*4 C, No Headspace

Note*: Some jurisdictions recommend Sodium Thiosulphate preservation, especially with chlorinated water sources.

Semi-Volatile Organics

Minimum Sample

Container

Holding Time

Preservative

Extractable Hydrocarbon Sources

1000 mL

PreCleaned Glass with Teflon Lids

7 Days

4 C

PolyAromatic Hydrocarbons (PAHs)

1000 mL

PreCleaned Glass with Teflon Lids

7 Days

4 C

Priority Pollutants EPA Screen (EPA 8270/625)

2000 mL

PreCleaned Glass with Teflon Lids

7 Days

4 C

Pesticide/Herbicides (per screen)

1000 mL

PreCleaned Glass with Teflon Lids

14 Days

4 C

Chlorophenols

1000 mL

PreCleaned Glass with Teflon Lids

7 Days

4 C

Amines / Glycols

3 x 40 mL

EPA Septum Vials

7 Days

4 C

Soil / Sediment

Volatile Organics Minimum Sample (g) Container Holding Time Preservative
BTEX, Purgeables or EPA 8260 Screen 50 PreCleaned Glass 14 Days *4 C (no headspace)
Semi-Volatile Organics Minimum Sample (g) Container Holding Time Preservative
Extractable Hydrocarbons and/or Oil & Grease (gravimetric)

100

PreCleaned Glass

14 Days

4 C

         
Other Screens PAHs, Chlorophenols, PCBs, Pesticides/Herbicides, Amines & Glycols

100

PreCleaned Glass

14 Days

4 C

Note*: All samples should be kept cool and in the dark, but should not be frozen.

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