The weekend is here, and while many folks in northwest North Dakota may be looking forward to time on the water, caution is strongly advised at Epping/Springbrook Dam. The North Dakota Department of Environmental Quality has issued a WARNING for a Harmful Algal Bloom (HAB) at the site. While not all blooms produce toxins, those that do—like the one confirmed at Epping/Springbrook—can cause serious health issues. For more details on Harmful Algal Blooms and their effects, visit tinyurl.com/WMP-HABs. LOOK: The history behind all 63 national parks in the US The National Parks System manages 63 national parks.