Water Chemistry

• Creek Connections Water Chemistry Fact Sheets 
• Water Quality Index – Water Research Center, Know Your H2O
• City of Boulder Water Quality Monitoring 
• Beginner FAQ: Water Chemistry 

Shale Gas Development

Click here for document full of many useful links on this topic

Hydrology/Meteorology

• National Weather Service Point and Click Forecasts
• USGS Current Water Data for Nation

General Environmental

• River and Stream Links for Further Exploration
• Aquatic Ecology Page
• PBS Deep Look Videos

Water Pollution / Threats

• Association of State and Interstate Water Pollution Control
• Acid Rain – EPA
• Water and Germs: Diseases and their Pathogens
• Clean Water Network
• US Geological Survey – Mine Drainage Activities

Drinking Water

• Pennsylvania Drinking Water – EPA Office of Water
• Pennsylvania’s Cool Resource (DEP)
• U.S. Environmental Protection Agency: Water Quality Criteria
• Water Quality
• Easygel Coliform Test FAQs 
• Easygel Microbiology Projects
• Micrology Laboratories

 Water Basics

• Water Science for Schools -USGS

pH

Soil

• The Science of Soil

Water Cycle

• Water Science for Schools – USGS – Earth’s Water
• National Weather Service – What a Cycle!

Groundwater

• Center for Groundwater StudiesUSGS
• Groundwater
• Pennsylvania’s Cool Resource (DEP) 
• Groundwater: The Hidden Resource! poster

Aquatic Plants / Algae

• Field Guide to Common Aquatic Plants of Pennsylvania

Invasive Species

• iMapInvasives
• Sea Grant National Aquatic Nuisance Species
• PA Fish and Boat Commission AIS
• Clearinghouse Exotic Species

Fish

• PA Fishes (PA Fish and Boat Commission)
• PA Endangered Species
• Back to the Brookie-Trout Unlimited

 Amphibians / Reptiles

• Frogwatch USA
• PA Endangered Species

Streamside Mammals

• PA Game Commission – Wildlife Notes
• Animal Tracks Guides

Birds of Marsh & Waterways

Other Water Quality Data

• USGS Surface Water Data – USA
• USGS Surface Water Data – Pennsylvania
• WPC – French Creek State of Stream Report

Watersheds

• • PA Dept. of Environmental Protection: Your Watershed
    
  • PA State Parks Watershed Education
  • Pennsylvanian Organization for Watersheds & Rivers
  • Erie Times News series of Articles on French Creek
  • Ecology of Rivers & Coasts
  • Watersheds of the US

Freshwater Mussels

• Creek Connections Mussels of French Creek
• Field Guide to Freshwater Mussels of the Midwest PA
• Endangered Species

Geology / Hydrogeology

• New York State Geology
• Resource Page PAGS USGS 
• Wildland Hydrology
• Prof. Rachel O’Brien

Topo Maps

Topo Map Basics

• USGS Topographic Maps

Online Topographic and Relief Maps

• TopoZone
• Pennsylvania Topography 3-D Relief Map
• Global Topographic Data
• Relief Global Slide

Topo Map Activities

• USGS-The Learning Web 
• Creek Connections Loaner Module

Geographic Information Systems (GIS)

• Videos:
• Geospatial Revolution
• GIS: Mapping Your World
• Geographic Information Systems (GIS): Dan Scollon at TEDxRedding

Wetlands

Wetlands in General

• Environmental Protection Agency: Wetlands  
• List of Various Wetland Links  
• National Wildlife Federation – Wetlands  
• National Wetlands Inventory Center

Laws, Regulations, Executive Orders, Guidance and Scientific Documents

• EPA Wetlands 
• PA DCNR – Legal Counsel – Major Laws 
• C.P.R. For Wetlands – Conserve, Protect, and Restore

Macroinvertebrates

• Aquatic Macroinvertebrates Factsheets
• Carnegie Museum of Natural History Macroinvertebrate ID
• RAIL Project – Keith Piccard GVSU
• New York State DEC- Macroinvertebrate Key (great pictures)
• Taxonomic Certification
• PBS Deep Look – Case-building Caddisfly video

Lakes

• WaterontheWeb.org
• Lakesuperiorstreams.org
• LakeAccess.org

Art and Photographs

• US Fish and Wildlife Service: Image Library
• US Forest Service Find-A-Photo

Riparian Zone

• Riparian Areas: Providing Landscape
• USDA Forest Service: Riparian Forest Buffers
• Connecticut River Joint Commissions: Riparian Buffers
• Understanding the Science Behind Riparian Buffers