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t <br />1 <br />1.0 INTRODUCTION <br />The proposed surface and ground water monitoring plan (Monitoring Plan) for the Experimental <br />Nahcolite Project Pilot Plant (Project) was prepared to be used for discussion with the regulatory <br />agencies, and for the completion of the Environmental Assessment for the Project. The Project <br />is located southwest of Meeker, Colorado, in the Rock School Lease Tract. <br />The Monitoring Plan will be implemented in the Fall of 1999 to assure that adequate baseline <br />data are available for the Project permitting process. The Monitoring Plan was prepared for the <br />experimental phase of the Project (year one). The Monitoring Plan will be reviewed and revised, <br />if necessary, for subsequent phases of the Project. <br />The scope of the Monitoring Plan is to obtain baseline surface and ground water data prior to <br />plant operations, and for monitoring of the effects on surface and ground water resources in the <br />general area. <br />2.0 SURFACE WATER MONITORING <br />Surface water monitoring will include streams, springs, and seeps. Monitoring will include flow <br />measurements, field water quality measurements (pH, temperature, and electrical conductivity), <br />and laboratory water quality sample collection and analysis. Locations of the proposed surface <br />water monitoring stations are presented on Figure 1. The Monitoring Plan is summarized in <br />Table 1, and a list of recommended laboratory parameters is presented in Tables 2 and 3. <br />2.1 Stream Monitoring <br />SURFACE AND GROUND WATER <br />MONITORING PLAN <br />AmerAlia, Inc. <br />Experimental Pilot Plant <br />Nahcolite Project <br />Stream stations will be established on Yellow Creek and its tributaries Corral Gulch and Stake <br />Springs Draw. <br />Following is a brief description of the proposed stream monitoring sites: <br />SW — 1: <br />This station is located on the Corral Gulch drainage at or near the location of inactive US <br />Geological Survey (USGS) Monitoring Station No. 09306244. This station will monitor Corral <br />Gulch upstream of the proposed Project facilities, and upstream of the irrigation ditch gate. <br />SW -2: <br />This station is located on the Stake Springs Draw drainage above the confluence with Yellow <br />Creek and above the irrigation ditch gate, at or near the inactive USGS gauging Station No. <br />\ \Gamel\home new \VladimirtAmerAlia\AmerAlia Report R3.doc - 20- Aug -99 <br />