One idea is to have the focus of the logo be a bat ray since they're commonly found in the Ballona Creek Estuary. The images generated below are getting at the idea somewhat, but I'd  definitely appreciate your input/edits, and we'd also need to add the "Ballona Creek Watershed Management Group" text.

 

 

 

 

 

The Dominguez Channel Watershed Management Group consists of the City of Los Angeles as the coordinating agency for the Enhanced Watershed Management Program and Coordinated Integrated Monitoring Program development, Los Angeles County, Los Angeles County Flood Control District, and the cities of El Segundo, Hawthorne, and Inglewood. 

The Dominguez Watershed is located within the southern portion of Los Angeles County, California, and encompasses approximately 133 square miles of land and water. Approximately 81 percent of the watershed or 93 percent of the land is developed. Residential development covers nearly 40 percent of the watershed, and another 41 percent is made up by industrial, commercial and transportation uses. With a population of nearly 1 million, considerable demands are made on infrastructure and services within the watershed. Water supply is limited and the majority of water use is from imported sources. Parkland and open space are in short supply and generally are deficient.

https://dpw.lacounty.gov/wmd/watershed/dc/

 This was a potential job assignment but like many jobs, I had applied for recently I don't hear back from them. However, I decided to post these as Case Studies.  I was going to design files provided for Free Cell and Minesweeper for the iOS. I had to draw inspiration from the current app and iterations of icons and screenshots. It should have the look and feel of current assets, but “updated” or “modernized”. The new assets were to be an improvement on the design, but still feel “familiar” to current users.  I did do some research by visiting the app store page to create titles for the app screenshots that highlight the apps features and would entice a user to download this title over other competitors. Include these titles on the screenshots.