All four HG Leach quarries produce
premium aggregates with an AA
weathering index - the highest possible rating.
All HG Leach premium products are tested for compliance and certified by an independent IANZ-accredited laboratory. All HG Leach products go through internal Quality Assurance inspection and testing. All HG Leach roading metals meet or exceed Transit New Zealand specifications. All product can be produced to specification as required.
To ensure HG Leach is able to consistently produce high quality aggregates, all staff members are trained to industry standards and are supervised by certified and competent quarry managers.
Minimal environmental impact at all levels
is a key aim of all HG Leach operations.
Good environmental practice is integrated
into all aspects of the company's
operations as part of sound, long-term
planning.
The company is committed to
demonstrating excellence in environmental
management through an environmentally
responsible culture. Minimum requirements
include:
• compliance with, as a minimum, all
legal & statutory requirements
• applying the principles of best
practice, sustainable
development
of natural
resources and continuous improvement
• reporting on environmental
performance.
The premium aggregates produced by
HG Leach are used predominantly in keeping New Zealand's roading network safe and strong. Applications include:
Concrete production
Sub-divisions
Roading
• roading metals
• sealing chip
• asphaltic concrete
• drainage
Not everyone needs – or wants – top
quality aggregate. Hard blue metal can
be damaging to the feet of valuable dairy
cows, whereas a lower grade of aggregate
can be just right. HG Leach produces a
wide range of alternate-grade aggregates
for use in:
Roading
• forestry roading
• drainage metals
• sub-division construction
Environmental maintenance
• riprap is used extensively for
riverbank
and foreshore
protection
Farming
• dairy races
• tanker tracks
Housing
• driveways
• backfill
• foundations.
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