2012-02-28_REVISION - M1980244 (96)

Home Browse Search

Borehole Depth (feet) Bedrock Geology Aquifer designation Grassy Valley reach Pressure transducer MLE2 Impact Water Quality OSABH -01 49 Granite Alluvium Middle Yes ECOSA Yes OSABH -02 44 Granite Alluvium Middle Yes ECOSA Yes OSABH -03 28 Diatreme Alluvium Middle Yes ECOSA No; dry OSABH -04 39 Diatreme Alluvium Middle Yes ECOSA Yes OSABH -05 25 Diatreme Alluvium Middle Yes ECOSA No; dry OSABH -06 33 Diatreme Alluvium Middle Yes ECOSA Yes OSABH -07 29 Diatreme Alluvium Middle Yes ECOSA No; dry OSABH -08 29 Diatreme Alluvium Middle Yes ECOSA No; dry OSABH -12 39 Diatreme Alluvium Lower Yes None No; dry OSABH-13 29 Diatreme Alluvium Middle Yes ECOSA No; dry OSABH -14 29 Diatreme Alluvium Lower Yes None No; dry OSABH -15 23 Diatreme Alluvium Middle Yes ECOSA No; dry OSABH -16 43 Diatreme Alluvium Middle Yes None No; dry OSABH -17 30 Granite Alluvium Middle Yes None No' OSABH -18 52 Granite Alluvium Middle Yes WHEX No; dry OSABH -19 30 Granite Alluvium Middle Yes ECOSA No' Monitor Well Depth (feet) Bedrock Geology Aquifer designation Grassy Valley reach Pressure transducer MLE2 Impact Water Quality GVMW 8A 250 Diatreme Bedrock Lower Yes None Yes GVMW 8B 50 Diatreme Shallow Bedrock Lower Yes None Yes GVMW 9A 200 Granite Shallow Bedrock Lower Yes None Yes GVMW 22B 30 Granite Shallow Bedrock Lower Yes None Yes GVMW 22A 70 Granite Shallow Bedrock Lower Yes None Yes GVMW 23B 30 Granite Shallow Bedrock Lower Yes None Yes GVMW 23A 90 Granite Shallow Bedrock Lower Yes None Yes GVMW 24B 100 Diatreme Shallow Bedrock Lower Yes None No; dry GVMW 24A 250 Diatreme Bedrock Lower Yes None Yes Piezometer Depth (feet) Bedrock Geology Aquifer designation Grassy Valley reach Pressure transducer MLE2 Impact Water Quality GVPZ -01 34 Granite Alluvium Upper Yes WHEX Yes GVPZ -02 29 Granite Alluvium Upper Yes WHEX Yes GVPZ -03 19 Granite Alluvium Upper Yes WHEX Yes GVPZ -04 40 Granite Alluvium Upper Yes WHEX Yes TABLE 6 -4 (CONTINUED) 5 The piezometers and boreholes are completed in the alluvium. The "Bedrock Geology" indicates the underlying rock type. 6 "Alluvium" collectively refers to soil, alluvium, and colluvium. Water is present, but it has not been sampled.