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✨ Happy Friday from the team at RDA! We’ve had a busy and rewarding week and look forward to sharing more with you soon. In the meantime, whether you’re recharging or adventuring, we hope you have a great weekend! ... See MoreSee Less

We are a diverse team, passionate about providing innovative solutions for environmental, civil, and geotechnical challenges.

RDA was born from a practical challenge in 2010 with a leaking effluent pond in Southland. Combining farming, geology and engineering expertise solved the issue and enabled solutions for an additional six farms.

We are proud to support projects across the South Island with local insight, practical experience, and a commitment to sustainable outcomes.

📞 0800 732 474 | ✉️ [email protected] | 🔗https://rda.co.nz ... See MoreSee Less

📄 Are your consents still fit for purpose?

Resource consents are essential for many farming and land-use activities but they’re often overlooked once granted. Over time, your farming operation may evolve, and your consents might not reflect what you're actually doing (or want to be doing).

We recommend periodically reviewing your consents to ensure they are still aligned with your current and future needs and fully compliant with all conditions. It's also important to be aware of upcoming expiry dates.

📆 Remember: replacement applications typically need to be lodged at least six months before expiry. In some cases, lodging too late means the consent cannot be replaced.

If you're unsure whether your consents are still working for you, or when they’re due to expire, we're here to help.

📞 0800 732 474 | ✉️ [email protected] | 🔗https://rda.co.nz ... See MoreSee Less

It’s that time of year again. Calving and lambing season is in full swing!

Here’s to a safe, smooth, and successful season for Kiwi farmers. ... See MoreSee Less

On site last week in Riverton for a Shallow Soils Investigation.

This investigation forms part of a geotech report required when building (including but not limited to a new home, extension, or garage) to identify the bearing capacity of the land.

We are looking to determine if the appropriate soil conditions exist for the planned structure and for any evidence of unsuitable soils, such as organic material and unsuitable fill, in and around where you want to build/extend.

Natural hazard risks, such as flooding, shoreline erosion, landslides and liquefaction, are also considered as part of our report.

Get in touch to talk through your plans.
📞 0800 732 474 | ✉️ [email protected] | 🔗 rda.co.nz ... See MoreSee Less

Even if your effluent pond seems to be running fine, the only way to know for sure it’s performing correctly is with a proper drop test.

With environmental compliance under increasing scrutiny, it’s no longer just about operating responsibly, it’s about proving it. A certified pond drop test gives you the evidence that is required and the confidence that your system is up to standard.

If your next test is coming up, or you want to get ahead, we’re ready to help.
📞 0800 732 474 | ✉️ [email protected] | 🔗 rda.co.nz ... See MoreSee Less

We understand the unique conditions your site faces and what it takes to get the best results.

By combining insight, experience, and practical thinking, we deliver tailored, high-quality solutions that work for your specific needs.

Get in touch for advice that’s made for your site and situation.
📞 0800 732 474 | ✉️ [email protected] | 🔗 rda.co.nz ... See MoreSee Less

Compaction testing is an essential part of the building process, ensuring the stability and durability of soil used in construction projects. This test measures the density of soil to verify that it meets the specific requirements for supporting structures such as buildings, roads, and bridges. Understanding the intricacies of compaction testing can help professionals ensure the longevity and safety of their projects.

Get in touch.
📞 0800 732 474 | ✉️ [email protected] | 🔗https://rda.co.nz ... See MoreSee Less