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Bonanza Mine and Mill

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Area 2<br />Date Taken: 8/19/2014<br />Category: Site Photo<br />Latitude: 43.3905527777778<br />Longitude: -123.182944444444<br />Tags:
Area 2 close up of soil horizon<br />Date Taken: 8/20/2014<br />Category: Site Photo<br />Latitude: 43.3903305555556<br />Longitude: -123.183572222222<br />Tags:
Area 2 additional adit discovered<br />Date Taken: 8/20/2014<br />Category: Site Photo<br />Latitude: 43.3902444444444<br />Longitude: -123.183913888889<br />Tags:
Area 2 excavated adit opening <br />Date Taken: 8/20/2014<br />Category: Site Photo<br />Latitude: 43.3901833333333<br />Longitude: -123.184066666667<br />Tags:
Area 2 wide angle of excavated adit<br />Date Taken: 8/22/2014<br />Category: Site Photo<br />Latitude: 43.3902638888889<br />Longitude: -123.184022222222<br />Tags:
Area 2: sealed Adit<br />Date Taken: 8/22/2014<br />Category: Site Photo<br />Latitude: 43.390225<br />Longitude: -123.184136111111<br />Tags:
Area 2: XRF Sceening<br />Date Taken: 8/22/2014<br />Category: Site Photo<br />Latitude: 43.3902972222222<br />Longitude: -123.183808333333<br />Tags:
Residence 4, subject of screening<br />Date Taken: 8/20/2014<br />Category: Site Photo<br />Latitude: 43.3899722222222<br />Longitude: -123.184594444444<br />Tags:
Area 4 excavation<br />Date Taken: 8/22/2014<br />Category: Site Photo<br />Latitude: 43.3899388888889<br />Longitude: -123.184486111111<br />Tags:
Area 4: XRF screening<br />Date Taken: 8/22/2014<br />Category: Site Photo<br />Latitude: 43.3895194444444<br />Longitude: -123.1858<br />Tags:
Area 4 Dust suppression<br />Date Taken: 8/22/2014<br />Category: Site Photo<br />Latitude: 43.3894916666667<br />Longitude: -123.185988888889<br />Tags:
Waste repository<br />Date Taken: 8/23/2014<br />Category: Site Photo<br />Latitude: 43.3908916666667<br />Longitude: -123.182380555556<br />Tags:
Waste repository with residence 5 in foreground<br />Date Taken: 8/26/2014<br />Category: Site Photo<br />Latitude: 43.3866972222222<br />Longitude: -123.189172222222<br />Tags:
Waste repository (Zoom)<br />Date Taken: 8/26/2014<br />Category: Site Photo<br />Latitude: 43.3866194444444<br />Longitude: -123.191680555556<br />Tags:
Demolition of Residence 2.<br />Date Taken: 9/4/2014<br />Category: Site Photo<br />Latitude: 43.3912722222222<br />Longitude: -123.183708333333<br />Tags:
Excavation of the hillside leading to Residence 2.<br />Date Taken: 9/9/2014<br />Category: Site Photo<br />Latitude: 43.3915972222222<br />Longitude: -123.183272222222<br />Tags:
Excavation of the road leading to the Mill Site. <br />Date Taken: 9/12/2014<br />Category: Site Photo<br />Latitude: 43.3911527777778<br />Longitude: -123.183327777778<br />Tags:
South section of Residence 1 after excavation to 12 inches bgs. <br />Date Taken: 9/9/2014<br />Category: Site Photo<br />Latitude: 43.3924638888889<br />Longitude: -123.183472222222<br />Tags:
Small pools of mercury at the Mill Site. <br />Date Taken: 9/11/2014<br />Category: Site Photo<br />Latitude: 43.3917111111111<br />Longitude: -123.183288888889<br />Tags:
View of the Mill Site after additional excavation to remove soil associated with pools of mercury. <br />Date Taken: 9/12/2014<br />Category: Site Photo<br />Latitude: 43.3917166666667<br />Longitude: -123.183211111111<br />Tags:

Area 2 Area 2 close up of soil horizon Area 2 additional adit discovered Area 2 excavated adit opening Area 2 wide angle of excavated adit Area 2: sealed Adit Area 2: XRF Sceening Residence 4, subject of screening Area 4 excavation Area 4: XRF screening Area 4 Dust suppression Waste repository Waste repository with residence 5 in foreground Waste repository (Zoom) Demolition of Residence 2. Excavation of the hillside leading to Residence 2. Excavation of the road leading to the Mill Site. South section of Residence 1 after excavation to 12 inches bgs. Small pools of mercury at the Mill Site. View of the Mill Site after additional excavation to remove soil associated with pools of mercury. New culvert installed between Area 1 in the foreground and Area 2 in the background; the road leads uphill to Residence 3. New road construction in Area 2 with barrier fence and signage in the foreground. Aggressive dust suppression on the repository with a DataRam particulate monitor in the foreground. Receiving clean fill in Area 2. Placing clean fill on the repository. Timber has been stacked in the foreground for eventual placement on the finished repository. Decontaminating the D8 bulldozer in Area 1. Excavated section in Residence 6 of large red cobbles. Upper anchor trench of the repository. Note the red calcine at the bottom of the trench. Drainage ditch in Area 4 lined with gabion rock. Seed and straw was placed on the slope for erosion control. Pile of clean fill was covered with plastic tarp on 9/23 prior to significant rain event on 9/24/14. Drainage ditch in Area 1 near the repository after significant rain event on 9/24. Receiving fill in Area 1 near the repository. Utility trench on the west side of Area 4. Certified weed-free seed and straw placed in Area 2. View from the repository facing south. View of the repository from Residence 2. Note the reddish mine-waste contaminated material in the repository partially covered by the soil cap. Wide-angle view of the mill site after it was backfilled with excavated soil from Residence 2. View of the repository after it was covered and compacted with a 6 inch soil cap. Construction of run-on control ditch. Cracks in soil surface. Installation of septic drain in leach field. Toe drain installation. Repository anchor trench installation. Residence 6 manufactured home in place. Residence 6 after placement and utility connection. Residence 1 after placement and utility connection. Repository cover with slash and straw. A warning sign related to existing site hazards is also present. Repos damage before repair Repos damage before repair Repos damage before repair Repository cover with straw and slash facing Area 1. The eastern repository drainage channel is located on the right. A warning site was placed to inform visitors of existing site hazards. Area 1 in the foreground with straw and slash facing the repository. An armored drainage channel leads around the toe of the repository. Area 2 with visible revegetation and straw placement. Photo taken from Residence 6 location. Hydroseeding Repos Hydroseeding Hydroseeded Repos including all four residences on property see previous image