Deer Creek Watershed Alliance

09/08/2026

As temperatures get cooler, and leaves begin to fall, you may be wondering what to do with all those fallen leaves! Instead of spending countless hours raking, just leave them in place where they can breakdown naturally and recycle nutrients back into the ground. Or, if you want to speed up the decomposition process of the leaves, use your mower to "mulch in place" and chop the leaves into finer particles.

Learn more: https://www.deercreekalliance.org/pollution?utm_campaign=dcwa_fall2026_enews&utm_medium=email&utm_source=deercreekalliance

DID YOU KNOW? 👀 The City of Webster Groves is the first municipality in the Deer Creek Watershed and St. Louis region to kick off a citywide "Leave the Leaves" campaign this fall.

08/10/2026

08/07/2026

07/28/2026

💧One Water Missouri on the Barge: Clarifying Nutrient Pollution💧

Join us for a unique floating classroom experience on Thursday, August 27th on the Mississippi River! Collaborate with leaders for a workshop on nutrient pollution challenges and solutions in Missouri's waterways.

This hands-on session brings together practitioners, regulators, and environmental advocates to build shared understanding and identify actionable strategies for nutrient pollution.

Learn more and get your ticket: https://www.deercreekalliance.org/one_water_missouri

07/08/2026

06/12/2026

Reduce water pollution from your pool and spas this summer ✌🏼👙🤿

When you're enjoying your pool and spas at home this summer, if you have one, be sure to keep the following in mind:

🐠Discharge of chlorinated water from pools, even in low concentrations, to a storm sewer or nearby creek can kill fish and other aquatic life.

👀Chlorinated water should be disposed of properly so it does not enter storm sewers or surface waters.

❗️Only drain residential pool or spa chlorinated water to stormwater when a test kit does not detect chlorine levels and only if approved by your local municipality.

💧Properly store pool and spa chemicals to prevent leaks and spills.

06/09/2026

06/01/2026

Yard waste decaying in creeks and rivers decomposes in a process that removes oxygen from the water. Fish and other aquatic life can’t survive in water with low oxygen.

06/01/2026

Summer is on the horizon! As we continue to wake up our gardens for the remainder of this warm season, many people have a habit of applying fertilizers in hopes of prosperous growth, but that extra nitrogen and phosphorus cause hazards in our water ways—including the Gulf!

The hypoxic zone measurements for 2025 were released and cover currently 4,402 square miles (roughly the size of Connecticut). A hypoxic zone, or "dead zone," is an area in a body of water where dissolved oxygen levels are too low to sustain most marine life.

While this hypoxic zone is smaller than in recent years, it’s still more than double the 1,900 square mile goal set by the Gulf Hypoxia Task Force.

Stay tuned for useful water quality programming coming later in 2026.

You can learn more about the Gulf Hypoxia task force here:

The Gulf of America Hypoxia Watch maps near real-time bottom dissolved oxygen data to monitor hypoxic conditions in the Gulf of America. Data is collected during the NOAA Fisheries annual Summer Groundfish Survey, which evaluates the population and health of commercially important shrimp, fish, and....