... by rainwater and carried into the underlying groundwater. If the groundwater feeds springs that flow into streams or lakes, the nitrate can cause excess weed growth, algal blooms and toxicity for fish...
https://www.ecan.govt.nz/nitrate-in-waterways-whats-the-story... Ōtūwharekai (Ashburton Lakes) is a significant and important part of our region, but threats to water quality mean that we need to take action now. Sign up to the Ōtūwharekai Working Group mailing...
https://www.ecan.govt.nz/your-region/your-environment/water/whats-happening-in-my-water-zone/ashburton-water-zone/action-on-the-ground/o-tu-wharekai-ashburton-lakes... to collect the additional data for the respirable crystalline silica monitor that was tampered with, to ensure the full three months data for all sites. We felt it important to have further data to compare...
https://www.ecan.govt.nz/about/your-council/request-information/responses..., weed control and fish passage works. Looking forward to 2030 Environment Canterbury will continue to prioritise freshwater biodiversity projects to improve habitat to support ecosystem function...
https://www.ecan.govt.nz/your-region/your-environment/water/measuring-cwms-progress/recreational-and-amenity-opportunities