Story perspectives
Colorado warns against John Martin Reservoir after 4.2M spill
9/1/2026
1 of 1
Story summary
- Colorado Parks and Wildlife warned visitors to avoid John Martin Reservoir after a sewage spill.
- The spill released 4.2 million gallons of untreated sewage on Wednesday and was stopped Thursday.
- Contaminated water with high E. coli levels was expected to reach the reservoir Monday morning.
- Officials barred swimming, wading, tubing, paddleboarding, fishing and pet contact while keeping the park open.
- Lake Hasty remained closed to full-body contact because of dangerous cyanobacteria, unrelated to the spill.
