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WATER QUALITY AND QUANTITY During the monitoring period, quarterly surface water measurements were obtained at each of the three stations located on Stollsteimer Creek. These samplings were conducted during March, June, September, and December. Semiannual water quality analyses were conducted during the June and December sampling. Well sites in the Stollsteimer Alluvium were sampled quarterly for water level and semiannually for water quality during the same months as surface water. METHODS During visits to each station, flow measurements were made by stretching a 100 foot tape across a surveyed cross-section of the creek and checking cross-section depth. Velocity was also checked to determine the flow rate. Water quality was collected by grab samples at each station. Depth to water was measured in groundwater wells to the nearest ]mndredth of a foot using an electric line. Groundwater samples were collected with a hand bailer after evacuating tluee casing volumes of water. During samplings for water quality, temperature was measured in the field with a hand thermometer. All other parameters were collected in precharged bottles and submitted to ACZ Laboratories in Steamboat Springs for analyses. Methods of analysis were consistent with EPA standard testing procedures. SURFACE WATER Results of all surface water measurements made during 1985 tluough 2002 are contained in Appendix Bl. A sununary of major chemical parameters and flow is presented in Table B-1. Recorded flows over the 17 year period ranged from a low of 0 cfs at station S-1 to a high of 215 cfs at station S-2 in April 200E Maximum recorded flow was approximately 300 cfs during April 1986, which was estimated at the mine haul road culvert crossing. As indicated from the flow records, seasonal variation was observed depending on precipitation received in the drainage. Spreadsheets and graphs of flow recorded at each station are presented in Appendix B1. 053-Chimney Roek_PH360ND_2003_(1an22.04) $-1