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Collection: Directories and Documents

Mineral Land Classification of Nevada County, California (1990) (235 pages)

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Table 3. Aggregate Resource Areas in Nevada County (continued) ARA# CATEGORY * HIGHEST USE** PLATE ARA-20 HS ECE i=a ARA-20a iS PEE 7a ARA-21 HS ele 7-a ARA-22 5 PCE 7-a ARA-23 HS PEC 7-a, 7-b ARA-24 S PCC BAS ARA-25 Ss base T=) ARA-26 Ss base 7-b ARA-27 HS PCC 71=C ARA-27a Is PCC 1-¢ ARA-28 HS Pcc Use ARA-29 S PCC 1=c ARA-30 HS base FE ARA-30a Is base Ze ARA-31 S Pc¢c I=¢ ARA-32 S base Ice * IS = IMMEDIATELY SIGNIFICANT, HS = HIGHLY SIGNIFICANT, S = SIGNIFICANT ** Highest Use indicates the highest potential use of material in a deposit based on current or past production or tests from that deposit or similar deposits in the region. Further testing and evaluation could either upgrade or downgrade the potential highest use of a deposit. PCC = portland cement concrete 69