2017-04-11_REPORT - M1977424 (2)

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Table 4. 2016 Logan Wash Mine Site Monitoring Results, March 2016 to March 2017 LW -002 LW -001 Upper Lower Manometer (L-1 Portal) Manhole Manhole Date (inches) ( m) ( m) ( m) Other 4/6/16 NM NM 1.85 2.09 Repair Evaporation Pond egress ladders 5/12/16 0 2.10 1.80 2.15 Installed rain gauges on the Lower Bench and at the Evaporation Pond. 5/19/16 NM NM NM NM Purged Well LWCW-IA for semi-annual sampling. 5/23/16 12.5 2.04 NM 2.07 Collected samples of retort water, mine water and from Big Seep and the Lower Manhole. 5/24/16 NM NM NM NM Collected sample from Well LW -22A. 5/25/16 NM NM NM NM Collected sample from Well LWCW-IA. 5/27/16 NM NM NM NM Daylight Bench survey, 6/14/16 13.5 1.73 1.58 1.97 6/23/16 13.5 1.57 NM NM BLM ROW inspection. 6/28/16 13.25 1.55 NM NM P. debilis survey with CNAP. 7/27/16 12.25 1.50 1.71 2.01 Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsolar system. 8/5/16 NM NM NM NM Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsystem. 9/2/16 11.5 1.19 1.85 2.12 Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsystem. 9/22/16 NM NM NM NM Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsystem. 9/26/16 NM NM NM NM Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsystem. 10/3/16 NM NM 1.56 NM Purged Well LWCW-IA for semi-annual sampling._ 10/4/16 NM 1.42 1.80 2.30 Collected samples of retort water, mine water and from Big Seep and the Lower Manhole. 10/5/16 NM NM NM NM Collected sample from Well LW -22A. 10/11/16 11.5 1.42 1.90 2.24 Collected sample from Well LWCW-IA. 10/12/16 NM NM NM NM Da li ht Bench survey. 10/18/16 NM NM NM NM Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsystem. 11/7/16 NM NM NM NM Mow weeds in the Evaporation Pond area. 11/10/16 NM NM NM NM Troubleshoot Evaporation Pond Leak Detection Vault sump pumpsystem. 11/29/26 NM 1.37 1.99 2.13 Troubleshoot Evaporation