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<br />t <br />t <br />t <br />t <br />t <br />. <br />. <br />. <br />t <br />~ <br />~ <br />~ <br />~. <br />~; <br />~ <br />~, <br />~, <br />~ <br />~ <br />~ <br />. <br />.. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />Stream Gages <br /> <br />Information measured by the stream gages in the project area include gage height, <br />measured in feet and streamflow, measured in cubic feet per second (cfs). <br /> <br />Gage height (also known as stage) is the height of the water in the stream above a <br />reference point. Gage height refers to the elevation of the water surface in the specific <br /> <br />pool at the streamgaging station, not along the entire stream. Gage height also does not <br />refer to the depth of the stream. <br /> <br />Streamflow (also known as discharge) is the volume of water flowing past a given point <br />in the stream in a given period of time. Streamflow is measured in cubic feet per second <br />(fi3ts). Streamflow values are better indicators than gage height of conditions along the <br />whole river. <br /> <br />United States Geological Survey <br /> <br />The USGS owns and maintains five stream gages within the project area. The table and <br />figures below provides information on the gages. <br /> <br />IAgency,1 Site Number :1. Site Name <br />IUSGS 106712000 ICherry Creek near Franktown, CO. <br />IUSGSI393109104464500lCherry Creek near Parker, CO <br />IUSGS 106708800 lEast Plum Creek below Haskins Gulch near Castle Rock, CO <br />IUSGS 106709530 IPlum Creek at Titan Road near Louviers, CO <br />IUSGS 106709000 IPlum Creek near Sedalia, CO <br />Table 3: United States Geological Survey stream gages located in Douglas County. <br /> <br />The figure and table below depicts how the USGS stream gage information is displayed, <br />and is accessible by the internet at http://waterdata.usqs.qov/co/nwis/rt. Real-time data <br />typically are recorded at 15-60 minute intervals, stored onsite, and then transmitted to <br />USGS offices every 1 to 4 hours, depending on the data relay technique used. <br />Recording and transmission times may be more frequent during critical events. Data <br />from real-time sites are relayed to USGS offices via satellite, telephone, and/or radio and <br />are available for viewing within minutes of arrival. <br /> <br />IDate / Time (L T) IGage height (feet) <br />1 <br />105/21/200400:001 3.58 <br />105/21/200400:151 3.54 <br />105/21/200400:30 J 3.47 <br />105/21/200400:451 3.46 <br />105/21/200401 :001 3.46 <br />105/21/200401:151 3.48 <br /> <br />IStream-flow (ft3/5) <br /> <br />I <br />I <br />I <br />I <br />I <br />1 <br /> <br />11.0 <br />9.70 <br />7.90 <br />7.70 <br />7.70 <br />8.20 <br /> <br />21 <br />