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Philadelphia Water Resources Monitoring Program
A cooperative project with the Philadelphia Water Department

Frequently Asked Questions

Q: Why are you monitoring Philadelphia's watersheds?
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Q: Why do you stop collecting water quality data during the winter months?
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Q: Why does water quality change?
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Q: Who takes the samples and reads the data?
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Q: How Healthy are Philadelphia's Watersheds?
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Q: What do the green, yellow, and red colors mean?
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Q: What does it mean when a chemistry icon is white, or "not ranked"
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Q: I noticed that two of the gage sites had about the same dissolved oxygen concentration, but the chemistry icons were different colors. Why is this?
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Q: When and where can I swim in Philadelphia's Streams and Rivers?
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Q: How can I get more information on my watershed?
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Q: How can I get more information on my drinking water?
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