We've been drilling water bores for over 40 years

When you contact Griffiths Drilling about your water bore, you are talking to a drilling team with over 40 years experience in this region. Our water bore drilling operations are mainly carried out within the Wellington, Hutt Valley, Kapiti Coast and Wairarapa regions, giving us a comprehensive knowledge of the ground aquifers within these areas.

Contact us today to discuss your water bore requirements.
 

Some useful information about water bores

Groundwater Groundwater is mostly the result of some of the rainfall in the hydrologic cycle being absorbed by the ground (recharge). The amount of water that may exist is governed by the porosity and permeability of ground material. The geological history and the forming of the landscape, current topography, recharge rates and water use all influence the existence, or not, of groundwater.

Aquifers may be unconfined (water table) or artesian (confined) depending on the recharge point and the strata surrounding the aquifer.

Consent for Water Bores

Before water bore drilling can commence you must obtain Resource Consent for your bore from the Regional Council. Contact them directly to discuss your plans or visit their website which has the necessary forms and information to apply for the consents needed.

Once you receive the documents you are welcome to contact us so we can answer any questions you may have. Prior to mobilisation, we need you to provide us with a copy of the consent, including the specified conditions.

Water Bore Casing

Casing is a strong pipe used to prevent the borehole collapsing and provides a barrier to prevent surface contaminants entering the aquifer. On completion of the bore the top of the casing will sit above ground level. For domestic and stock water situations we use 125mm (5 inch) well casing.

Well Screen

Generally, to maximise the collection area available, a slotted screen is used to increase the intake area of the water bore. The slot size is designed to minimise the entry of solids into the well. The well screen fits inside the casing and the casing is pulled back to expose the slotted area.

Water Bore Development

This is done to clear any silt / sand from the material surrounding the well screen in the hole to ensure clean water and increase permeability of the water bearing area. Development time will depend on the conditions encountered.

Pump Testing

The pump test is a preliminary test to determine if the required quantity of water is available from the bore. It is also done to monitor the water level after an extended period of pumping (drawdown) to ensure that the water level does not fall below that needed to operate the pump. A preliminary test is done before installing a screen in the water bore. After developing the well another pump test will be done to determine the yield from the bore.

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Services

Griffiths Drilling offers a comprehensive range of drilling services. Each service is backed-up with our considerable drilling capability, technical expertise and vast practical experience that comes from operating for over 44 years within the New Zealand drilling industry.

Geotechnical Services

Our services include rotary core drilling, rotary mud, concentrix casing systems, standard penetration tests, CPT testing, sampling, hollow steam auger, auger, down hole hammer, air coring, test pits, labour, bore logging and piezometer and inclinometer installations.

Sonic Drilling Services

Griffiths Drilling have the only dual head sonic drilling rig available in New Zealand. Sonic drilling is up to 4 times faster than traditional methods and there are many other advantages and benefits when you use our newly arrived, XL CRS-F Duo Sonic Rig.

Cone Penetration Test (CPT) Services

Our Cone Penetration Test (CPT) service uses our 2 dedicated CPT rigs. These specialist drilling rigs have been designed and customised specifically to meet the needs and demands of our clients and New Zealand drilling conditions.

Technical Consultancy Services

Our technical consultancy services include dedicated Project Managers, technical support and instrumentation monitoring. We also offer geological and geotechnical services and have access to over 45 years of drilling records and geological information that has proven valuable to our clients.

Other Drilling Services

Our other drilling services include construction and foundation drilling (includes ground anchors and soil nails), water bore and water well drilling, environmental drilling and monitoring and seismic drilling for exploration.