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Cleanup Standards
NB: Only a strip of sediments 45 metres by
about 700 metres representing about 5% of the
surface area of sediments is being remediated.
There is a lot of other contamination including
large areas of DDT at 5 times background, PAH's,
metals, and various 'ene's which is not being
remediated.
(The table below is from Department of Transport & BT
Custodial Services, Homebush Bay, Former Allied
Fees and Lednez Site Remediation, Call for
Proposals, May 1999
Table 3.1 - Acceptance Criteria
| (A) Contaminants |
(B) Residual Bay Benthic
Sediment |
(C) Remediated Sediment for
Land Land Disposal |
| Dioxin and
Furans (ug/kg dry wt) |
|
|
| |
2,3,7,8-TCDD |
0.05 |
1 |
| |
TCDD TEQ |
0/05 |
1 |
| Organochlorine (OCP)
Pesticides (mg/kg) |
* |
|
| |
Chlordane |
|
1 |
| |
DDD |
|
1 |
| |
DDT |
|
1 |
| Polyaromatic
Hydrocarbons (PAH) (mg/kg) |
* |
|
| |
Total PAH |
|
20 |
| |
Benzo(a)pyrene |
|
2 |
| Phenols &
chlorinated Benzenes (mg/kg) |
* |
|
| |
3-Methylphenol |
|
5 |
| |
2-Methylphenol |
|
0.003 |
| |
Dichlorophenol |
|
0.001 |
| |
Trichlorophenol |
|
0.01 |
| |
Dichlorobenzene |
|
0.01 |
| |
1,3-dichlorobenzene |
|
0.01 |
| |
1,2-dichlorobenzene |
|
0.01 |
| |
1,4-dichlorobenzene |
|
0.01 |
| |
Trichlorobenzene |
|
0.01 |
| |
1,3,5-trichlorobenzene |
|
0.01 |
| |
1,2,4-trichlorobenzene |
|
1 |
| |
1,2,3-trichlorobenzene |
|
0.01 |
| |
Tetrachlorobenzene |
|
0.01 |
| |
1,2,3,4-tetrachlorobenzene |
|
0.01 |
| |
pentachlorobenzene |
|
1 |
| |
hexachlorobenzene |
|
1 |
| |
phenol |
|
0.05 |
| Metals |
|
|
| |
Aluminium |
|
................................ |
| |
Arsenic |
|
200 |
| |
barium |
|
200 |
| |
Boron |
|
................................ |
| |
Cadmium |
|
40 |
| |
Chromium |
|
200 |
| |
Cobalt |
|
20 |
| |
Copper |
|
2000 |
| |
Iron |
|
................................ |
| |
Lead |
|
600 |
| |
Molybdenum |
|
10 |
| |
Nickel |
|
600 |
| |
Selenium |
|
................................ |
| |
Silver |
|
................................ |
| |
Tin |
|
20 |
| |
Vanadium |
|
................................ |
| |
Zinc |
|
1400 |
(A) Contaminants previously detected
(refer primary documents)
(B) Test results of
samples of Bay sediment after excavation is
complete must be less than these values listed.
(C) Test results on sediment which has been
remediated must be less than these values for
acceptance.
Note:
mg/kg = ppm; ug/kg=ppb;
ng/g=ppb
*Contractor to undertake
toxicological study, compare to '98 toxicological
study, and report nett impact.
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