Onsite Wastewater Design Specialists

RISEN provides onsite wastewater design, consent renewal support and independent technical advice for properties across Marlborough. We assess the site, explain the practical options and prepare the engineering information needed to move your project forward.

​

Our Services:

​

Resource Consent Renewal (Discharge Permit)

We inspect existing systems, review their performance and site conditions, and prepare the engineering information required for a wastewater discharge consent renewal. If a system has compliance or performance issues, we explain the practical options for improvement.

​​

Design a New System or Replace an Existing One

Planning a new build or replacing an older septic system? We assess the property and design a solution suited to its soil, slope, occupancy and available land—from septic tanks with trenches or beds to secondary treatment with drip irrigation.

​

Peer Review

Need an independent view? We review wastewater designs, consent information and system performance, then provide clear technical advice for property owners, designers and councils.

​

Installation - Design and Construct

RISEN can coordinate the design and construction process through to Council sign-off, working with experienced local drainlayers and contractors to keep responsibilities, decisions and delivery clear.

​

Why Choose RISEN?

• Local knowledge of Marlborough and the Marlborough Sounds.

• Clear, approachable advice from an owner-led engineering consultancy.

• Practical designs shaped by the site, consent requirements and how the property will be used.