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Metro San Antonio Clubs & Organizations Naturally Bexar Water Bugs Clean or Polluted Texas Parks and Wildlife has published a terrific one-page handout titled "Bug Picking - Is Your Creek Clean or Polluted?" The worksheet uses a point system to gauge water quality, based on the kinds of underwater critters that can be identified. If you would like a copy of this handy guide, call the TPWD Urban Programs office in San Antonio at 210.348.6350. Or you can do a little Internet research and find plenty of photos or line drawings that will help you get started. Clean water animals...those that are pollution sensitive...include: Caddisfly Dobsonfly Mayfly Riffle Beetle Stonefly Water Penny Fair Water Animals Animals that are somewhat pollution tolerant are: Clam Crayfish Damselfly larvae Dragonfly larvae Planarian Scud Polluted Water Animals Local aquatic biologists say that ten to fifteen years ago, some of our local streams were so contaminated, you'd be lucky to find even pollution tolerant critters. Thankfully, much has changed. Here though, is a list of pollution tolerant water animals. Aquatic Worm Blackfly Coiled Snail Leech Midgefly larvae Pouch Snail Email Us saladocreek@hotmail.com Water! San Antonio River Authority Privacy Statement Neighborhood Link Terms of Use © 1997 - 2006 Neighborhood Link, Inc.