3 Site Longitude Latitude Site, State/Province Reg MSA MSA_Pop MSA_desc beg_date end_date 110010025 -77.0225 38.9756 Takoma DC 03 8840 4223485 Washington DC-MD-VA-WV 20040101 20101007 110010041 -76.9528 38.8972 RIVER_Terrace DC 03 8840 4223485 Washington DC-MD-VA-WV 20040101 20140326 110010043 -77.0125 38.9189 McMillan Reservoir DC 03 8840 4223485 Washington DC-MD-VA-WV 20040101 20120703