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2.0 MONITORING PLAN <br />This section summarizes existing site data, identifies surface water monitoring locations, <br />details monitoring frequency, and provides data collection and analytical testing procedures. <br />2.1 CURRENT SITE CONDITIONS <br />Existing water quality and flow information for the site consists of the following: <br />• Outfa11002 -monthly flow and water quality <br />• Outfa11001 receiving channel -monthly flow (no documented discharge) <br />• Outfa11001 pipe - no flow or water quality data has been collected <br />• Process water pipe outfall to pond -weekly totalized flow, no current water <br />quality data <br />• Lined pond -two water quality samples. <br />Collection of monthly water quality and flow data are required as part of CDPS permit No. <br />0029947 for the LWM for Outfalls 001 and 002. Data are collected at the outfall from a 4- <br />inch PVC pipe at Outfall 002. Outfa11002 water discharges to the ground surface and <br />infiltrates within approximately 50 feet of the pipe outfall. The drainage pipe, directly <br />upstream from Outfall pipe 001, discharges to a dry channel in upper Logan Wash. Data are <br />collected from the natural channel (which is usually a dry, ephemeral channel) approximately <br />100 feet downstream from the pipe. Discharge from the drainage pipe infiltrates into the <br />unconsolidated sediments of the channel before reaching Outfall 001 monitoring location. <br />Current and proposed monitoring locations are shown on Figure 1. <br />2.2 IDENTIFICATION OF MONTIORING LOCATIONS <br />A site reconnaissance of LWM was conducted on November 16, 1995 to assess existing <br />conditions and to identify surface water monitoring locations. The data was documented <br />during this reconnaissance. Site inspection was conducted which included the Logan Wash <br />channel, the plumbing system near the mine, permitted outfalls, pipeline conveyance to the <br />6 <br />