OKLAHOMA CITY - It is illegal to release chlorinated pool water into a neighborhood storm drain, the City of Oklahoma City reminded residents Wednesday.

Due to the chemicals in swimming pool water, the the unfiltered water could drain into local streams and reservoirs and could harm wildlife.

"Native fish and other aquatic life living in our waterways cannot tolerate the levels of chlorine and other chemicals often found in pool water and backwash water from filtration units," said Raymond Melton, Oklahoma City storm water quality manager.

Water must be de-chlorinated before releasing it into a storm drain if your pool isn't connected to a sanitary sewer line for draining, the city said.

All saltwater systems must be drained to the sanitary sewer system.

According to municipal code, fines for illegal disposal into storm drains range from $200 to $1,000 per day for each violation.