Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:2:p6
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 2 (pt 6/7)
Character Range: 2929980–2933921

1600             1300           9000
MCPA                                     600                                        900              800            5000
MCPB                                     600                                        900              800            5000
Mecoprop                                 600                                        900              800            5000
Picloram                                 4500                                       6600             5700           35 000
Other Pesticides
Atrazine                                 320                                        470              400            2500
Chlorpyrifos                             160                                        340              250            2000
Bifenthrin                               600                                        840              730            4500
Other Organics
PCBs8                                    1                                          1                1              7
PBDE Flame Retardants (Br1-Br9)          1                                          2                2              10

Notes:
  (1)     Generic land uses are described in detail in Section 3.
  HIL A: Residential with garden/accessible soil (home-grown produce <10% fruit and vegetable intake (no poultry)), also includes childcare centres, preschools and primary schools
  HIL B: Residential with minimal opportunities for soil access; includes dwellings with fully and permanently paved yard space such as high-rise buildings and apartments
  HIL C: Public open space such as parks, playgrounds, playing fields (e.g. ovals), secondary schools and footpaths. This does not include areas of undeveloped open space where the potential for exposure is lower and where a site-specific assessment may be more appropriate.
  HIL D: Commercial/industrial includes premises such as shops, offices, factories and industrial sites.
  (2)     Arsenic: HIL for arsenic assumes 70% oral bioavailability. Site-specific bioavailability may be important and should be considered where appropriate (refer Schedule B7).
  (3)     Lead: HIL for lead is based on blood lead models (IEUBK for HILs A, B and C and adult lead model for HIL D) where 50% oral bioavailability has been considered. Site-specific bioavailability may be important and should be considered where appropriate.
  (4)     Methyl mercury: assessment of methyl mercury should only occur where there is evidence of its potential source. It may be associated with inorganic mercury and anaerobic microorganism activity in aquatic environments. In addition, the reliability and quality of sampling/analysis should be considered.
  (5)     Elemental mercury: HIL does not address elemental mercury. A site-specific assessment should be considered if elemental mercury is present, or suspected to be present.
  (6)     Carcinogenic PAHs: HIL for carcinogenic PAHs is based on the 8 carcinogenic PAHs and their respective TEFs (potency relative to BaP) adopted by CCME 2008. The BaP TEQ is calculated by multiplying the concentration of each carcinogenic PAH in the sample by its BaP TEF, given below, and summing these products.

PAH species             TEF  PAH species              TEF
Benzo(a)anthracene      0.1  Benzo(g,h,i)perylene     0.01
Benzo(a)pyrene          1    Chrysene                 0.01
Benzo(b+j)fluoranthene  0.1  Dibenz(a,h)anthracene    1
Benzo(k)fluoranthene    0.1  Indeno(1,2,3-c,d)pyrene  0.1

  Where the BaP occurs in bitumen fragments it is relatively immobile and does not represent a significant health risk.
  (7)     Total PAHs: HIL for total PAH is based on the sum of the 16 PAHs most commonly reported for contaminated sites (WHO 1998). The application of the total PAH HIL should consider the presence of carcinogenic PAHs and naphthalene (the most volatile PAH). Carcinogenic PAHs reported in the total PAHs should meet