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Onsite Wastewater Design Specialists

Welcome to RISEN Consultancy, your local experts in onsite wastewater solutions for Blenheim and the Marlborough region. Whether it’s traditional septic tanks or advanced secondary systems, our passion for wastewater management is evident in every project we take on. From large community networks to custom onsite systems, we are committed to delivering effective, reliable solutions.

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Trust in our small, dedicated team of Chartered Engineers and qualified designers, accredited by the Marlborough District Council. We pride ourselves on providing wastewater systems tailored to your specific needs. For us, delivering excellence in wastewater management isn’t just a service—it’s a commitment.

New Wastewater Systems

For custom onsite wastewater system design in Blenheim, Marlborough, and Nelson, RISEN Consultancy takes a detailed approach, focusing on your property’s unique characteristics. We consider everything from the number of bedrooms and flow rates to land topography, available space, soil texture, and any potential challenges like neighbouring boundaries or waterways.

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For commercial wastewater needs in Marlborough, we provide bespoke designs. Whether handling specific effluent types or managing land discharges over 15,000 litres daily, our systems are tailored to meet the demands of each project.

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While our main focus is rural Blenheim and the picturesque Marlborough Sounds, our expertise in wastewater design extends throughout New Zealand and the wider Marlborough region.

Every system we design complies with current regulations. From primary septic tanks to advanced secondary systems and drip lines, we are committed to delivering efficient, durable, and effective solutions.

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Dripline pinned to the ground in Marlborough prior
to covering and dense planting
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Reviewing existing secondary treatment system in the Marlborough Sound

Wastewater Consent Renewals

In Marlborough, understanding and meeting resource consent requirements is essential for anyone with an onsite wastewater system. Some systems, depending on their location, may require a Resource Consent renewal every 15 years. These systems can range from basic gravity-fed septic tanks and application beds to more advanced secondary systems with drip line irrigation.

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Staying compliant with discharge permits and resource consent standards is crucial. If your system requires a renewal, the expertise of an accredited wastewater specialist is key. They will conduct a thorough assessment to ensure your system meets all current regulations and standards.

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At RISEN Consultancy, we take a detailed and practical approach to every wastewater assessment. Our aim is to ensure that each system operates efficiently, safeguarding both the environment and the community from potential risks.

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Rely on our extensive experience to navigate the complexities of resource consents for wastewater engineering. We manage every aspect, from property evaluations and system reviews to the preparation and submission of applications for new Resource Consents and discharge permits in Marlborough.

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