Sampling analysis and quality plans

 

Area of potential concern

Area
of Investigation

Rationale For Sampling Density

Qualitative
Risk

Area (m2)

Hot Spot Diameter for detection (m)

Density
of Sampling

Analytes

AoPC_01

Area used for storage of materials and chemicals

Contamination of soil from building materials and storage of fuels.

High

1,000

15

Six (6) sample locations (1)

Heavy metals, total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs), benzene, ethylbenzene, toluene and xylenes (BTEX)

AoPC_02

Ponds

Residual contamination from long term use of aquatic feed and chemical ameliorants from previous use as a Prawn farm

Medium

16,000

60

Six (6) water quality (2) and six (6) sediment sample locations (3)

Heavy metals, plus physical and chemical properties to determine acceptable water quality parameters for the receiving environment.

AoPC_03

Area used for storage of materials and chemicals

Sampling during HMA to identify hazardous materials.

High

1,000

15

Six (6) sample locations (1)

Asbestos, lead, synthetic mineral fibers

AoPC_04

Remaining Area of Site

Buried infrastructure

Low

20,000

100

Three (3) sample locations (1)

Heavy metals, total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs), benzene, ethylbenzene, toluene and xylenes (BTEX)

Notes:
(1) 1 duplicate and 1 triplicate will be taken every 10 soil samples on site.
(2) 1 duplicate and 1 triplicate will be taken every 10 water quality samples taken on site.
(3) 1 duplicate and 1 triplicate will be taken every 10 sediment samples taken on site.
Hazardous materials Audit HMA Heavy metals Arsenic (As), barium [Ba], cadmium [Cd], chromium [Cr], copper [Cu], nickel [Ni], lead [Pb] and zinc [Zn]

   

AoPC 1

AoPC 2

AoPC 3

AoPC 4

 

Qualitative Level of Risk

Low

Medium

High

High

R=

m

50

30

7.5

7.5

G=

m

84.75

50.85

12.71

12.71

A=

m2

20000

20000

1000

2000

n=

(whole number)

3

8

6

12

Hot Spot Dia=

 

100

60

15

15