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TGM for the Implementation of the Hawai'i State Contingency Plan
Appendix 11-B
Laboratory Methods for Groundwater

Appendix 11-B


Laboratory Methods, Containers, Preservation, and Holding Times for Groundwater Samples

Parameter

Method

Container

Preservation

Holding Time

TPH-G 5035/8015;
LUFT
40 mL jar with septum cap <6°C 7 days
HCl to pH<2 and <6°C 14 days
TPH-D 5035/8015;
3550/8270;
3540/8270;
LUFT
1 L Amber Glass Jar <6°C< 7 day (4°C only)

TPH-O

8015;
EPA 1664

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

HCl to pH<2 and <6°C (1664 only)

BTEX, MtBE

(BTEX only)
8260;
EPA 602;
EPA 624

40 mL jar with septum cap

<6°C

7 days

(BTEX and MTBE)
8260;
EPA 524.2

HCl to pH<2 and <6°C

14 days

PAHs

8270;
8310;
EPA 610;
EPA 625

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

HVOCs

8260;
EPA 601;
EPA 608;
EPA 624;
EPA 625

40 mL jar with septum cap

<6°C

7 days

HCl to pH<2 and <6°C

14 days

VOCs

8260;
EPA 624

40 mL jar with septum cap

4°C

7 days

HCl to pH<2 and <6°C

14 days

SVOCs

8270;
EPA 625

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Metals (except Mercury and Chromium VI)

6010;
6020;
EPA 200 Series

250 mL Plastic Container

HNO3 to pH<2 and <6°C

6 months

Mercury

7470;
EPA 245.1

250 mL Plastic Container

HNO3 to pH<2 and <6°C

28 days

Chromium VI

7196

250 mL Plastic Container

<6°C

24 hours

PCBs

8082;
EPA 608

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Chlorinated Herbicides

8151;
EPA 615

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Organochlorine Pesticides

8081;
EPA 608

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Triazine Pesticides

8141;
8270;
EPA 619

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Organophosphorus Pesticides

8141;
8270;
EPA 622;
EPA 614

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Carbamates

8321;
EPA 632

1 L Amber Glass Jar

<6°C
 
E: 7 days
A: 40 days

Fumigants

8260;
EPA 504.1;
EPA 524.2

40 mL jar with septum cap

<6°C

7 days

HCl to pH<2 and <6°C

14 days

Pentachlorophenol

8270;
8151;
EPA 625

1 L Amber Glass Jar

<6°C

E: 7 days
A: 40 days

Glyphosate

EPA 547

1 L Amber Glass Jar

0.008% Na2S2O3 (pH 5-8) and <6°C

14 days

Cyanide

9014;
EPA 335.2/335.3

500 mL Plastic Container

NaOH to pH>12 and <6°C

14 days

Dioxins/Furans

8290;
EPA 613;
EPA 1613

1 L Amber Glass Jar

<6°C

E: 30 days
A: 45 days

 

Notes:  
   
BTEX Benzene, toluene, ethylbenzene, and xylene
Dioxins Polychlorinated dibenzodioxins
Furans Polychlorinated dibenzofurans
HVOCs Halogenated volatile organic compounds
MTBE Methyl-tert butyl ether
PAHs Polynuclear aromatic hydrocarbons
PCBs Polychlorinated biphenyls
SVOCs Semi-volatile organic compounds
TPH-G Total petroleum hydrocarbons as gasoline
TPH-D Total petroleum hydrocarbons as diesel
TPH-O Total petroleum hydrocarbons as oil
VOCs Volatile organic compounds
< Less than or equal to
°C Degree Celsius
g Gram
L Liter
mL Milliliter
HCl Hydrochloric acid
NaOH Sodium hydroxide
NaS2O3 Sodium thiosulfate
HNO3 Nitric acid
E Hold time to extraction
A Hold time after extraction until analysis
pH A measure of the acidity or alkalinity of a solution.
EPA Where the term "EPA" is used with a given method number the prefix indicates that the method comes from Environmental Protection Agency (EPA) wastewater and drinking water standards, both published and maintained by the EPA Safe Drinking Water Act (SDWA) and/or Clean Water Act (CWA). For methods that are presented without the "EPA" notation, the methods come from the guidance document "Test Methods for Evaluating Solid Waste Physical/Chemical Methods" (SW-846). Although SW-846 was written by the EPA originally, they are guidance documents and not prescriptive as the EPA prefix methods.