Appendix B: Contaminant analysis - disposal to land

Determinand

(mgkg^-1 dry weight)

Note all fractions of a sample should be analysed

General

PH Value

-

-

Total Sulphate

<2000

Sulphide

<10

Elemental Sulphur

<100

Monohydric Phenols

<2

Cyanides

Total Cyanide

<5

Further cyanide analysis may be necessary if levels exceed 20 mgkg^-1.

Free Cyanide

See notes

Complex Cyanide

See notes

Thiocyanate

See notes

Organics

PAH Screen by HPLC

Total hydrocarbons <100

See notes

Initial screen, if hydrocarbon contamination present further analysis would be necessary for individual PAHs.

PCBs – ICES 7 Congeners

<0.02

If PCB contamination identified further analysis for individual congeners may be necessary.

Heavy Metals

Arsenic (total)

<7

Cadmium (total)

<0.4

Chromium (total)

<40

Lead (total)

<30

Mercury (total)

<0.1

Selenium (total)

<1

Copper (total)

<18

Nickel (total)

<20

Zinc (total)

<124

Available Lead

<200

Available Nickel

<20

Available Copper

<100

Available Zinc

<250

Zinc Equivalent

<250

Total parameters should be analysed unless stated

Barium

<500

Available Boron

<2

Magnesium

<500

Manganese

<500

Beryllium

<5

Vanadium

<100

Organo-metallic Compounds

Tri-butyl Tin & Di-butyl Tin

<0.1

Physical Properties

PSD (particle size)

Gravel, sand, silt fractions