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1 wan wavra sem. Pb. <br />Surface water hydrology will be <br />evaluated using standard techniques. The <br />generated data will describe run-off peak <br />flows, low flows and flow duration and will <br />be the basis for future engineering design <br />purposes. These data, in conjunction with <br />collected climatological data, will aid in <br />determining the water balances in the project <br />azea. <br />at the time flow measurements are made. At <br />the surface water monitoring stations, <br />quarterly water quality samples will be taken <br />and analyzed for the parameters listed in <br />Tablea lA and 1B. As parameters aze found <br />that are below drinking water standazds or <br />potentially do not exist in the environment, <br />their analyses will be requested to be deleted <br />from the list. <br />Color aerial photography will be used to <br />construct preliminary location maps of <br />springs, ephemeral and perennial streams, <br />monitoring stations and wells. The aerial <br />photographs will also be used to identify <br />seasonal wetlands. <br />Users of surface water and ground water <br />(water rights) will be identified where <br />possible both within the project area and an <br />azea extending one mile from the study area. <br />Potential surface water and ground water <br />sampling points will be field checked and <br />alternative locations selected. <br />Surface water monitoring stations will be <br />established. Surface flow measurements will <br />be taken on a monthly basis. In addition, <br />peak and low flow data will be gathered. All <br />data will be obtained using approved USGS <br />and EPA protocols and will be documented <br />in accordance with established quality control <br />and assurance procedures. This document <br />will be utilized during all sampling. To <br />quantify flow measurements taken with staff <br />gages, cross sections of the channel and <br />immediate overbank will be developed where <br />appropriate. <br />The general water quality of the water <br />courses will be observed utilizing portable <br />field instruments to measure dissolved <br />oxygen, pH, conductivity and temperature. <br />Field water quality observations will be made <br />Ground Water Hydroloov <br />Spring and Seep Monitoring and Analysis <br />Springs and seeps will be initially <br />identified from USGS aerial photography <br />mapping and a review of surface water users. <br />A field reconnaissance will confirm the sites <br />and identify other sites present in the area. <br />Field parameters will be acquired monthly on <br />all springs. <br />Water quality samples will be taken <br />quarterly and analyzed for the parameters <br />listed in Tables lA and 1B and 2A and 2B. <br />Previous sampling in the area has indicated <br />that high SAR's and sulfate concentrations <br />are prevalent within the area. For springs <br />with the obvious same source which will be <br />determined by comparison of field <br />parameters, proximity and elevation, only <br />one sample will be taken for several <br />coincident springs. <br />Wells will be completed in each of the six <br />aquifer units both as background and <br />downgradient monitoring points. The aquifer <br />units can be characterized from shallow to <br />deep as alluvial, overburden, Ciruela Coal, <br />interbtuden or Primero overburden, Primero <br />Coal, and underburden. <br />9 <br />