Status: Confirmed
Benthic HABs have been confirmed in Bright Angel Creek, Roaring Creek, Royal Arch Creek, Matkatamiba Creek, Colorado River at Phantom Ranch, and Shinumo Creek. It is possible that Benthic HABs are present in other streams and rivers throughout Grand Canyon National Park.
- How to Stay Safe | View PDF >
Backcountry recreators should take extra precaution when filtering water from streams in Grand Canyon National Park by avoiding areas that appear to have Benthic (subsurface) HABs and avoid disrupting the algal mats to minimize potential risk.
- Visual guide on Identifying Benthic HABs | View Fact Sheet >
- Utah's Benthic Mats Examples | View Examples >
Status: Confirmed
HABs have been reported throughout Lake Havasu. Samples were collected, and the following locations were most recently reported with detections near or above the EPA-recommended recreational threshold for Microcystin;
- Lake Havasu Casino/Hotel Beach
- Nuwuvi Park
While these locations were sampled recently, this does not mean there isn't algae elsewhere in the lake that could be harmful. Campers and Recreators should avoid areas with algae and be mindful that conditions can change daily or even hourly, depending on winds and currents. When in doubt, stay out!
For more information, call:
- Lake Havasu City Manager's Office at (928) 855-2116
- Lake Havasu State Park at (928) 855-2784
- Bureau of Land Management Lake Havasu Field Office at 928-505-1200
Additional Resources:
- CA Waterboards FHAB Data Portal | View Portal >
