Essential Monitor's Guide for Prairie Water Retention

Water retention provides flood, drought, water-quality, and additional benefits, such as improved habitat, biodiversity, and carbon storage, which can be increased through water management and when naturalized. These benefits typically serve as drivers for the implementation of water retention practices within ongoing work to adapt to our changing climate.

Monitoring both water quantity and quality allows us to better understand a site’s performance and the various influences that site design, operation, and maintenance have on enhancing its effectiveness and related co-benefits.

Currently, there is limited long-term data available demonstrating water-quality benefits across a variety of different sites, which we know can vary in performance for several reasons.

Critically, the knowledge gained from monitoring water retention can be used to design sites that

• provide better adaption to our changing climate,
• are optimized to deliver multiple benefits, and
• can be better managed to uphold their performance long after they are constructed

This guidance document aims to make water retention monitoring a more accessible practice from a technical standpoint by demystifying some of the considerations required to get started. It includes a review of various pieces of monitoring equipment, methods of analysis for water quantity and quality, and practical insights and example applications drawn from IISD's own water retention monitoring and modelling experience.

With the diversity and affordability of tools available today for monitoring water retention, there has never been a better time to begin monitoring a system in your own watershed.