PROCEDURE FOR INSTALLATION OF
GROUND MONITORING WELLS
Contents:
1.0
PURPOSE .......................................................................................................... 3
2.0
SCOPE ............................................................................................................... 3
3.0
COMPLIANCE.................................................................................................. 3
4.0
BOREHOLE & WELL LOCATIONS .............................................................. 3
5.0
DRILLING METHODS .................................................................................... 4
6.0
MONITORING WELL CONSTRUCTION/INSTALLATION ........................ 4
7.0
MONITORING WELL DOCUMENTATION .................................................. 4
8.0
MONITORING WELL DECOMMISSIONING ............................................... 4
Form 1. Monitored Bore Installation Report – Below Ground Installation ........... 6
Form 2. Monitored Bore Installation Report – Above Ground Installation .......... 7
Procedure for Installation of Groundwater Monitoring Wells
Page 2 of 7
1.0
PURPOSE
This procedure is to be used to establish an acceptable standard for a groundwater
monitoring well or standpipe installation for Brisbane Airport Corporation (BAC).
2.0
SCOPE
This document shall apply to all monitoring wells constructed, installed,
decommissioned and monitored on BAC controlled land. These include works
undertaken within lease, sublease and licensed areas.
3.0
COMPLIANCE
Groundwater monitoring will be installed in accordance with relevant Australian/New
Zealand Standards AS/NZS 5667.11:1998: Water Quality – Sampling – Guidance on
Sampling Groundwater, and The Minimum Construction Requirements for Water
Bores in Australia : Edition 2 Sept 2003 www.iah.org.au/pdfs/mcrwba.pdf
Prior to any works occurring on BAC controlled land, appropriate documentation
must be submitted and approved by appropriate authorities.
4.0
i.
BAC to issue Airport Lessee Consent:
 All drawings, design certificates and application forms to be submitted
to BAC.
ii.
Airport Building Controller (ABC) to issue Building Approval for works:
 All drawings, design certificates and ABC application forms to be
submitted.
iii.
BAC to issue Permit to Commence Work:
 Contractor to obtain BAC Approved Contractor status;
 Contractor site employees to complete BAC online OH&S inductions;
 Contractor to submit appropriate safe work plan and construction
environmental management plan for approval;
 BAC to issue Permit to Work.
BOREHOLE & WELL LOCATIONS
Prior to installation, ensure wells are at practical locations based on supplied ASCON
plans which:
a)
Limit disturbance of existing flora and fauna;
b)
Take existing services locations into account;
c)
Should not be located in drainage channels, floodways or tidal areas
unless specific design has allowed for flood impact to the site;
d)
A well, installed in a high traffic area should be constructed flush to grade
with suitable protective casing to minimise possible damage.
e)
Well to be clearly marked as a monitoring well with appropriate installer
and monitoring contractor details.
5.0
DRILLING METHODS
Suitable drilling methods must be selected to reflect the purpose or objective of the
monitoring well as detailed by a certifying engineer. Excess spoil is to be suitably
disposed of or relocated as per approved plans.
If the site contains potential contaminated spoil, treatment and relocation of spoil
must be as per approved site specific CEMP. Locations of known contaminated land
to be supplied by BAC representative to the Contractor.
Brisbane Airport land is currently within the Department of Primary Industries Fire Ant
Zone, therefore strict limitations and specific approvals must be adhered to. Brisbane
Airport also lies within know PASS and ASS zones.
6.0
MONITORING WELL CONSTRUCTION/INSTALLATION
The Monitoring Well is to be constructed strictly as per design engineer’s
documentation. (Figure 1) details a typical monitoring well design.
The installation and construction of boreholes and groundwater monitoring wells
must be supervised on site by a certified and licensed contractor with a current BAC
Permit to Commence Work.
Groundwater monitoring well installation report (Form 1 or Form 2) for each installed
well to be returned to BAC with suitably completed ASCON information at completion
of works.
BAC to inspect installed wells and issue Final Inspection Certificate. ABC to inspect
installed wells and issue Certificate of Completion for Works.
7.0
MONITORING WELL DOCUMENTATION
A written log is to be kept on results from each monitoring well. Any abnormal results
are to be immediately reported to BAC’s Environment Section.
8.0
MONITORING WELL DECOMMISSIONING
For monitoring wells that are to be decommissioned, the following process should be
followed:
 If possible, remove complete monitoring well and backfill hole with approved
compacted material;
 If complete removal is not possible, eliminate physical hazards on the surface
and back fill hole with approved compacted material;
 Prevent contamination of site groundwater.
 Eliminate possible unintended use
Procedure for Installation of Groundwater Monitoring Wells
Page 4 of 7
Fig.1
Procedure for Installation of Groundwater Monitoring Wells
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Form 1. Monitored Bore Installation Report – Below Ground Installation
Procedure for Installation of Groundwater Monitoring Wells
Page 6 of 7
Form 2. Monitored Bore Installation Report – Above Ground Installation
Procedure for Installation of Groundwater Monitoring Wells
Page 7 of 7