the bore or well:
1) Collect the water level information, this information can be very important.
2) Make sure that at least 3 times the casing volume of water has been purged from
the bore.
3) If the bore is a domestic water supply fitted with a down hole pump, make sure the
pump is running and allow it to run at least 15 minutes before sampling.
If you are using your own pump for sampling such as a Grundfos MP1 pump, flush
the well for at least 15 minutes at a high flow rate
there
were no issues with site access.
2.3.2. Groundwater
Groundwater samples were taken from monitoring bores up slope (GND1015 and GND1016) and down
slope (GND1014) of the landfill on two occasions. The results from these samples are shown in Table 2 and
Table 3.
As with the results from previous samples taken from these monitoring bores, the groundwater down
gradient of the landfill (as represented by bore GND1014), shows some evidence of contamination from the
landfill. The
the
resource consent application procedure for DWI activities, applicants are required to
submit information that details both the design and construction specifications of the
injection well(s) and illustrates well integrity and the isolation of the well bore from
surrounding formations.
In Taranaki, contaminants disposed of by DWI are generally limited to produced
water, saline groundwater, contaminated stormwater, waste drilling fluids, HF
fluids, and production sludges. The Council
page
iii
List of tables
Table 1 Results of stormwater samples obtained from the Cheal-C
wellsite during the monitoring period 27
Table 2 Samples obtained from an unnamed tributary of the
Mangawharawhara Stream during the monitoring period
under review 28
Table 3 Cheal-C wellsite associated groundwater monitoring bore
details 30
Table 4 Pre and post hydraulic fracturing results obtained from
groundwater monitoring bore GND2274 32
Table 5 Pre and post
was undertaken in July 2015 to monitor potential residual effects of the
hydraulic fracturing at the Mangahewa-C well on local groundwater resources. Where
access to the bore was available, samples were obtained using a pneumatic bladder or
peristaltic pump, using a low-flow sampling methodology. Where access to the bore
was not available, samples were obtained at a point in the water distribution network
as close to the wellhead as practicable. Samples taken from wide diameter wells were
Taranaki Galvanizer’s discharge. However, zinc concentrations recorded complied with
consent limits. The historical disposal of galvanising waste materials into a bore on the
Galvanizer’s site is considered to be the most likely source of zinc contamination in the
unnamed tributary. Previous monitoring of the unnamed tributary has shown that there was
an initial decrease in the zinc concentrations recorded in the unnamed tributary during the
1990’s. Zinc concentrations then remained relatively
cap crown that may need attention if the grass doesn't take.
Groundwater samples were taken. The bore next to the track (GND1014) had a
landfill like odour.
30 April 2013
A site visit was made to conduct a compliance monitoring inspection and to take
groundwater samples. It was raining with 2 mm rain over the previous 24 hours.
Copper, chromium , arsenic (CCA) contaminated soils from the old Fazackerly's
sawmill site had been discharged on the eastern batter. Clean clay and soil had
7884-1(2011-2012) 31
Table 7 BTW supplied surface water results 32
Table 8 Results of Council soil sampling (SOL000178) 34
Table 9 Composite soil monitoring results from the 7884-1
spreading areas during the 2012-2013 monitoring period 34
Table 10 Results of surface water sampling for sites UND0000183
(upstream) and UND0000186 (downstream) 35
Table 11 Surface water results sample TRC122498, Wellington section
of the landfarm 36
Table 12 Groundwater monitoring results from bore GND2282
to be intact, permanently fenced and well-grassed. No
slumping, cracking, exposed refuse or stock damage was found at the time of
inspection.
The stormwater drains on the cap were well grassed and free draining. No ponding
was observed in the drains.
The site was not being grazed at the time of inspection. There were no odour or dust
issues found.
Groundwater 2.3.2
Groundwater samples were taken from monitoring bores upslope (GND1015 and
GND1016) and down slope (GND1014) of
site is located approximately 50m to the east of an
unnamed tributary and 250m to the west of another unnamed tributary.
4.5 Groundwater Resources
4.5.1 Aquifers
Water bores in the Kapuni area access aquifers in the shallow Egmont Volcanics,
Whenuakura and Matemateaonga Formations. Upper Urenui Formation
sandstones accessed in some Northern Taranaki water wells are not targeted in
the Kapuni area due to the significantly greater thickness of the Matemateaonga
Formation in