Colorado swim spots

Today's water-quality read for monitored Colorado lakes, ponds, and beaches. Worst conditions first.

• Vega ReservoirReservoir · Mesa CountyAdvisory
• Mac Farlane ReservoirReservoir · Jackson CountyAdvisory
• Big Johnson ReservoirReservoir · El Paso CountyAdvisory
• North Sterling ReservoirReservoir · Logan CountyAdvisory
• Lake JohnLake · Jackson CountyAdvisory
• Ish ReservoirReservoir · Boulder CountyAdvisory
• Prewitt ReservoirReservoir · Washington CountyAdvisory
• Lake HenryLake · Crowley CountyAdvisory
• Neenoshe ReservoirReservoir · Kiowa CountyAdvisory
• Barr LakeLake · Adams CountyAdvisory
• Handy ReservoirReservoir · Larimer CountyAdvisory
• Summit ReservoirReservoir · Montezuma CountyAdvisory
• Williams Creek ReservoirReservoir · Hinsdale CountyAdvisory
• Trinidad LakeLake · Las Animas CountyAdvisory
• Jackson ReservoirReservoir · Morgan CountyAdvisory
• Bijou Number 2 ReservoirReservoir · Morgan CountyAdvisory
• Riverside ReservoirReservoir · Weld CountyAdvisory
• Empire ReservoirReservoir · Weld CountyAdvisory
• Steamboat LakeLake · Routt CountyAdvisory
• Lower Latham ReservoirReservoir · Weld CountyAdvisory
• Walden ReservoirReservoir · Jackson CountyAdvisory
• Fossil Creek ReservoirReservoir · Larimer CountyAdvisory
• Milton ReservoirReservoir · Weld CountyAdvisory
• Julesburg ReservoirReservoir · Sedgwick CountyAdvisory
• Lake MeredithLake · Crowley CountyAdvisory
• Terry LakeLake · Boulder CountyAdvisory
• Demmel LakeLake · Larimer CountyCaution
• Cherry Creek LakeLake · Arapahoe CountyCaution
• Williams Fork ReservoirReservoir · Grand CountyCaution
• Lake CatamountLake · Routt CountyClear
• Spinney Mountain ReservoirReservoir · Park CountyClear
• Mariano ReservoirReservoir · Larimer CountyClear
• Timnath ReservoirReservoir · Larimer CountyClear
• Boyd LakeLake · Larimer CountyClear
• Horseshoe LakeLake · Larimer CountyClear
• Elevenmile Canyon ReservoirReservoir · Park CountyClear
• Cheesman LakeLake · Jefferson CountyClear
• Crawford ReservoirReservoir · Delta CountyClear
• Heart Lake ReservoirReservoir · Garfield CountyClear
• Saint Charles Reservoir Number 3Reservoir · Pueblo CountyClear
• Saint Charles Reservoir Number 2Reservoir · Pueblo CountyClear
• Trappers LakeLake · Garfield CountyClear
• Holbrook ReservoirReservoir · Otero CountyClear
• Groundhog ReservoirReservoir · Dolores CountyClear
• Leggett and Hillcrest ReservoirReservoir · Boulder CountyClear
• Dillon ReservoirReservoir · Summit CountyClear
• Grand LakeLake · Grand CountyClear
• Robinson Tailings PondPond · Summit CountyClear
• Tenmile Tailings PondPond · Summit CountyClear
• Green Mountain ReservoirReservoir · Summit CountyClear
• McPhee ReservoirReservoir · Montezuma CountyClear
• Calkins LakeLake · Weld CountyClear
• Elk Head ReservoirReservoir · Moffat CountyClear
• Continental ReservoirReservoir · Hinsdale CountyClear
• Base Line ReservoirReservoir · Boulder CountyClear
• Aurora ReservoirReservoir · Arapahoe CountyClear
• Standley LakeLake · Jefferson CountyClear
• Douglass LakeLake · Larimer CountyClear
• Chatfield LakeLake · Jefferson CountyClear
• Marston LakeLake · Denver CountyClear
• Rio Grande ReservoirReservoir · Hinsdale CountyClear
• Rampart ReservoirReservoir · El Paso CountyClear
• Carter Lake ReservoirReservoir · Larimer CountyClear
• Willow Creek ReservoirReservoir · Grand CountyClear
• Cobb LakeLake · Larimer CountyClear
• Vallecito ReservoirReservoir · La Plata CountyClear
• Adobe Creek ReservoirReservoir · Bent CountyClear
• Miramonte ReservoirReservoir · San Miguel CountyClear
• Pueblo ReservoirReservoir · Pueblo CountyClear
• La Jara ReservoirReservoir · Conejos CountyClear
• Shadow Mountain LakeLake · Grand CountyClear
• North Poudre Reservoir Number 15Reservoir · Larimer CountyClear
• North Poudre Reservoir Number 6Reservoir · Larimer CountyClear
• Windsor ReservoirReservoir · Larimer CountyClear
• Electra LakeLake · La Plata CountyClear
• Twin LakesLake · Lake CountyClear
• Narraguinnep ReservoirReservoir · Montezuma CountyClear
• Lake LovelandLake · Larimer CountyClear
• Mount Elbert ForebayLake · Lake CountyClear
• Deweese-Dye ReservoirReservoir · Custer CountyClear
• Neegronda ReservoirReservoir · Kiowa CountyClear
• Mayflower Tailings PondPond · Summit CountyClear
• Emerald LakeLake · Hinsdale CountyClear
• Turquoise LakeLake · Lake CountyClear
• Ruedi ReservoirReservoir · Pitkin CountyClear
• Halligan ReservoirReservoir · Larimer CountyClear
• Gurley ReservoirReservoir · San Miguel CountyClear
• Taylor Park ReservoirReservoir · Gunnison CountyClear
• Big Creek LakesLake · Jackson CountyClear
• Paonia ReservoirReservoir · Gunnison CountyClear
• Clear Creek ReservoirReservoir · Chaffee CountyClear
• Black Hollow ReservoirReservoir · Weld CountyClear
• Boulder ReservoirReservoir · Boulder CountyClear
• Windsor ReservoirReservoir · Weld CountyClear
• Panama Reservoir Number 1Reservoir · Boulder CountyClear
• Platoro ReservoirReservoir · Conejos CountyClear
• Horse Creek ReservoirReservoir · Adams CountyClear
• Horsetooth ReservoirReservoir · Larimer CountyClear
• Gross ReservoirReservoir · Boulder CountyClear
• Long Draw ReservoirReservoir · Larimer CountyClear
• Terry LakeLake · Larimer CountyClear
• San Luis LakeLake · Alamosa CountyClear
• Blue Mesa ReservoirReservoir · Gunnison CountyClear
• Homestake ReservoirReservoir · Pitkin CountyClear
• Sanchez ReservoirReservoir · Costilla CountyClear
• Lonetree ReservoirReservoir · Larimer CountyClear
• Lake San CristobalLake · Hinsdale CountyClear
• Cheraw LakeLake · Otero CountyClear
• John Martin ReservoirReservoir · Bent CountyClear
• Lemon ReservoirReservoir · La Plata CountyClear
• Antero ReservoirReservoir · Park CountyClear
• Bee LakeLake · Larimer CountyClear
• Lake GranbyLake · Grand CountyClear