Guidelines for constructing and maintaining aquaculture ...

Parameter
Groundwater levels
Pre-operational
In tidal areas:
Checked at 15-minute intervals over at least one
72-hour period; and
In tidal and non-tidal areas:
Checked at weekly intervals for the first month,
then monthly until operation commences.
First season
On initial fi lling following construction,
groundwater levels should be monitored daily for
the fi rst week, then weekly for the fi rst month, then
monthly for one year.
Thereafter
Monitoring should be undertaken monthly during
the period that ponds are fi lled, commencing one
month prior to fi lling and concluding one month
after the ponds are drained.
Monitoring should be undertaken quarterly during
the period that ponds are not filled.
More frequent monitoring may be required during
construction if dewatering of acid sulfate soils
is required.
Monitoring should commence as early as possible
in the project to obtain the best possible baseline
data on groundwater properties, and daily
monitoring should occur following heavy rain, until
such time as the relationship between rainfall and
groundwater level rise can be determined.
Field parameters (farms
using salt-affected or
saline waters)
Samples should be collected and analysed
monthly.
Monitoring of pH and EC should be undertaken
monthly for 12 months, commencing one month
prior to filling.
Monitoring of pH and EC should be undertaken
monthly during the period that ponds are filled,
commencing one month prior to filling and
concluding one month after the ponds are drained.
Primary parameters Depending on the variation of the aquifer across
the site, suffi cient samples should be collected to
provide a representative ‘baseline’ sample prior
to the commencement of construction works. Sets
of samples should be taken late in each of the dry
and wet seasons.
Secondary Parameters Dependent on the variation of the aquifer across
the site, suffi cient samples should be collected to
provide a representative ‘baseline’ sample prior to
the commencement of construction works.
Sets of samples should be taken late in each of the
Dry and Wet seasons.
Subject to expert advice should further
investigations be necessary.
Subject to expert advice should further
investigations be necessary.
Monitoring should be undertaken quarterly during
the period that ponds are not filled.
Subject to expert advice should further
investigations be necessary.
Subject to expert advice should further
investigations be necessary.
Please note: these are the minimum recommended monitoring requirements. Additional monitoring is strongly recommended to ensure that the variation in groundwater
characteristics both spatially and temporally are fully understood and that any changes detected following construction can be appropriately investigated.
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