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State

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Rifle Particulate

CO

20

SF-USD

SD

13

Chatfield Park - 11500 N. R...

CO

11

Watertown

SD

10

Denver

CO

10

I25 Denver

CO

10

Globeville

CO

10

Longmont

CO

9

Boulder - CU - 2102 Athens St.

CO

8

Rangely, CO

CO

8