FREWS QUARRY AND MANAGED FILL

Table 1. Frews Quarry and Managed Fill - Acceptable Waste Materials

The following materials will be accepted for disposal in the Frews quarry and managed fill at Plantation Road, Hororata:

Hard Fill:

  • Cured asphalt weathered, modern or historic asphalt that has been exposed to the elements for more than a month; does not include coal tar, and does not include end of shift tailings from paving projects,
  • Bricks, concrete blocks, glass, tile (concrete, ceramic or clay),
  • Cured concrete un-reinforced, or reinforced concrete where all steel reinforcing is completely encased within intact concrete,
  • Non-asbestos fibre reinforced cement building materials.
  • None of the prohibited materials specified in Table 3.

Soil:

  • Including stone, sand, silt, clay, loess, loam, or any combination thereof, and potentially particles of acceptable hard fill or other materials excluding prohibited materials specified in Table 3, and
  • organic or inorganic hazardous substances or asbestos, at concentrations less than or equal to those presented in Table 2.
  • All soil containing asbestos must be wrapped with minimum thickness 200 μm polyethylene sheeting in accordance with the WorkSafe Asbestos Management and Removal Approved Code of Practice.

Table 2. Managed Fill Waste Acceptance Criteria

Substance

Maximum
Allowable
Concentration
(mg/kg)
Aluminium

100,000

Antimony

410

Arsenic

140

Barium

90

Boron

130

Cadmium

55

Chromium

375

Copper

500

Lead

500

Manganese

600

Mercury (inorganic salts)

0.2

Nickel (soluble salts)

2,000

Zinc

1,800

Benzene

17

Ethylbenzene

110

Toluene

110

Xylenes (total)

103

TPH C7-C9

150 (and also
meets BTEX
criteria)****

TPH C10-C14

1,700 (and also
meets PAH
criteria)****

TPH C15-C36

20,000 (and also
meets PAH
criteria)****

Benzo(a)pyrene (BaP) Equivalent

45

Naphthalene

500

Chlordane

375

DDT + isomers

100

Dieldrin

2

Endrin

2

Polychlorinated biphenyls (PCBs)

0.007

Phenols (total)

100

Asbestos Fibres and Fines and Asbestos Contained in Building Material*****

5%

'Maximum canterbury background concentrations (Trace Elements 2) excluding arsenic from the regional rendzina soil group, copper and lead from the Timaru urban soil group and lead from the Christchurch urban recent soil group, because those background concentrations were substantially higher than the others within the region, based on Background Concentrations of Selected Trace Elements in Canterbury Soils, Addendum 1: Additional Samples and Timaru Specific Background Levels. Environment Canterbury July 2007.

** Background Concentrations of Polyaromatic Hydrocarbons in Christchurch Urban Soils. Environment Canterbury Report No. R07/19, July 2007.

*** Mean concentrations of selected organochlorines in soils in metropolitan Christchurch. Organochlorines Programme. Ministry for the Environment, December 1998.

****TPH limits for C7 to C9 must be in combination with BTEX limits. TPH limits for C10 to C14 and C15 to C36 must be in combination with BaP limits.

*****The waste acceptance criteria for asbestos (maximum allowable concentration 5%) where the asbestos is contained in fragments of building material mixed into soil is for the weight percent of all asbestos minerals in the combined mass of soil and the fragments of building material present in the soil. It is not the weight percent of asbestos in the building material alone.

Table 3. Frews Quarry and Managed Fill - Prohibited Materials

The following materials are prohibited for disposal in the Frews quarry and managed fill on Plantation Road, Hororata:

Substance

Description

Exceptions

Asbestos

When present as a contaminant of soil in concentrations meeting the acceptance criteria in Table 3

Abrasive blasting sand/agents

Uncured asphalt

Wood and wood products

any form of treated or untreated wood, wood waste or wood products, including, but not limited to root balls, tree trunks and branches, bark, wood chips, saw dust, milled timber, plywood, fibreboard, particleboard, chipboard, cork, paper, or cardboard

Plastic

including, but not limited to, sheet plastic, tape, pipe, tubing, cable insulation, vinyl (linoleum) tile or sheeting, other building materials, packing materials, polystyrene or polyurethane foam

Polyethylene sheeting used to envelop asbestos-containing soil

Metal

Any product or building material containing metal or a metallic element including, but not limited to, structural steel, flat and corrugated sheet metal, cable, wire, fencing, vehicle bodies, and cuttings and filings.

Metals in concentrations not exceeding the acceptance criteria in Table 2. Reinforcing steel encapsulated in concrete.

Carpet

including carpet backer and underlay

Electrical equipment and insulation materials

Asbestos that does not exceed the acceptance criteria in Table 2

Formica

Foundry sand

Green waste

including any form of vegetation

Household waste

Medical and veterinary waste

Radioactive waste

Animal or human wastes

including bio-solids, solid or liquid effluent waste and paunch grass

Paint

Cured paint applied as a surface coating on an Acceptable Waste described in Table 1

Tyres

Coal mine waste

Including acid forming rock or soil

Bulk ash

Liquid substances and saturated soil

including, but not limited to, liquid hazardous substances, liquid petroleum products and waste, and liquid coal tar

Hazardous substances and hazardous wastes

including materials that are

characteristically explosive, flammable, oxidizing, corrosive, toxic or eco-toxic.

A contaminant of soil or cured roading material that does not exceed the acceptance criteria for any substance listed in Table 2

Unauthorised contaminated soil

Soil containing detectable quantities of cyanide, endosulphan, lindane or pentachlorophenol.