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Monitoring locations were strategically chosen to provide an adequate representation of surface <br />water quality within and adjacent to the project area. Surface water was obtained from two <br />seasonal impoundments in Section 4 in T9N, R67W, and Section 33 in T10N, R67W (Plate 1) <br />and thirteen passive storm water samplers, emplaced at accessible locations most likely to <br />experience flow during storm events. The installed passive samplers are shown in Figure 3. The <br />seasonal water impoundments were checked monthly; when water was present, samples were <br />obtained. In addition, grab samples were collected at another five surface water sampling <br />locations that were established to estimate potential flows from small ephemeral drainages <br />associated with the project area. Ephemeral streams (storm water channels/grass swales) were <br />monitored for flow via passive samplers. The frequency of sample collection and analysis from <br />streams was dictated by storm events generating sufficient flow from which a sample could be <br />obtained. <br />Passive samplers were monitored and samples collected using Nalgene storm water samplers <br />following such events. All samples were placed in a cooler of ice and shipped via FedEx to <br />Energy Laboratory, Inc. (ELI) with proper chain of custody. Surface water samples were <br />analyzed for the parameters summarized in Table 2.3. <br />2.4 Meteorology and Air Quality <br />ISR process facilities do not affect air quality significantly (NUREG-1910, 2008). The impacts <br />due to construction are classified as small if 1) the gaseous emissions are within regulatory <br />limits; 2) the air quality in the region of influence is in compliance with the National Ambient <br />Air Quality Standards (NAAQS); and 3) the facility is not classified as a major source according <br />to the New Source Review or operating permit programs. Particulate air samplers were placed <br />onsite and offsite to test for radiological and non-radiological parameters during preoperational <br />conditions. <br />2.4.1 MeteoroloU <br />Powertech installed an onsite meteorological station in the north end of Section 3, T9N, R67W <br />(Plate 2). (One of the air monitoring stations is co-located with the meteorological station.) It is <br />situated at a location where the effects of obstructions-trees, buildings, etc.-is minimized. <br />Meteorological parameters to be measured are horizontal wind speed and wind direction, vertical <br />wind speed, temperature at 10 and 2 meters, differential temperature (between 2 and 10 meters), <br />barometric pressure, and solar radiation. The meteorological parameters were measured <br />continuously at a ten-meter level on an open-lattice meteorological tower using an electronic <br />data logger. Temperature and solar radiation were measured at the two-meter level of the tower. <br />The temperature sensors are housed in fan aspirated radiation shields. All meteorological data <br />were averaged every 2 seconds and stored in memory every 15 minutes. The meteorological <br />data collection program started November 15, 2007, and continued until mid December 2008. <br />April 2009 7 Site Characterization Plan