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What is a Detailed RAR Assessment?

A detailed assessment as defined by the BC Ministry of Environment is an assessment performed under the Riparian Areas Regulation according to the detailed assessment protocols. The assessment protocols provide a defined and detailed methods for a Qualified Environmental Professional, or QEP, to determine what riparian setback should be around a watercourse. Although there are exceptions, the rule of thumb is no works shall be performed within the riparian setback to preserve the integrity of the stream.

When do you need a Detailed RAR Assessment?

An RAR assessment is required when any works are being performed on a property that is 30 metres from the top of bank of a watercourse (ditch, stream, wetland or lake) or even a ravine in southern British Columbia, Canada. The assessment is usually a requirement of many development permits required by the local municipality. There are two types of RAR assessments with two different methodologies - the proponent can decide which one they want to perform based on their budget. In general, a detailed RAR assessment has a smaller setback than a simple RAR assessment resulting in more usable area for the property owner.

How does the RAR Process work?

The assessment requires that a QEP (i.e. Balanced Environmental) is hired by the proponent. The QEP performs research on the property followed by a site visit to confirm on-site conditions, then prepares a detailed RAR assessment report which is normally submitted to the Ministry of Environment on-line. A detailed RAR assessment often requires several QEPs of different specialities (surveyors, biologists, geotechnical engineers, etc.) depending on site conditions. For more information, please read the RAR Assessment Methods.

What does a RAR assessment cost?

Balanced conducts random surveys to ensure that all its pricing is completive. We offer detailed RAR assessments as low as $5,000 plus tax - please contact our office to obtain a proposal free of charge. Terms and conditions apply.

How long does an assessment take?

An assessment can be performed as quickly as 10 business days - please contact our office for QEP availability. Terms and conditions apply.

What kind of report do I get?

Upon completion of the assessment, you will be provided with a written report approximately 10 pages which includes a drawing of your property and associated stream setbacks. For an example of a report provided by the Ministry of Environment, click here.

How do I request a fee proposal?

Please send us an email at or call (604) 988-3033 and ask for a detailed RAR assessment. Please provide your address and the nature of the work you wish to perform. Also include any surveys you may have of your property.

Recent RAR Assessments

  • Port Coquitlam RAR Assessment for parking lot expansion.
  • Langley RAR Assessment for Shed Construction near Yorkson Creek.
  • Maple Ridge assessment of stream remediation near Kanaka Creek.
  • North Vancouver RAR Assessment for Garage Construction near Range Creek.
  • Langley RAR assessment for house moving project adjacent ditch system.
  • RAR Assessment for sewer system across and along York Lake.
  • RAR investigation for unnamed stream relocation project in Cedar.


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