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FIGURE 4d4c <br /> TYPE 2 AQUIFER <br /> WELLS COMPLETED IN TYPE II AQUIFER(UNCONFINED BEDROCK) <br /> NOT OVERLAIN BY TYPE III AQUIFER <br /> Surface Casing 1 Surface Casing 2 Without Surface Casing <br /> Ground Surface ' ` 1 foot �; ` 1 foot �; <br /> Always Grout as Required/ m Steel Surface Casing _ Steel Casing N. <br /> by Rule 10.5.2.1 <br /> Min.Depth 19 ft bgs Min.Depth 19 ft bgs 4 <br /> —� 10 ft Grout <br /> Overlap <br /> s. <br /> N <br /> Base of Grout from I Base of Grout from r Base of Grout from <br /> at Least 39 ft bgs at Least 39 ft bgs at Least 39 ft bgs <br /> 1 Static Water Level ._.7. Static Water Level---s ® Perforated Casing <br /> - Solid Casing <br /> Production Zone Annular > Steel Casing <br /> Space . ._ <br /> , I _• _ �t;ldi Approved Grout <br /> Figure 4c. Schematic diagram for wells constructed into Type 2 (unconfined bedrock) aquifers, not <br /> overlain by a Type 3 (unconsolidated) aquifer. <br /> Suggest updating figure for instance where surface casing is min 39' + penetrates into bedrock where <br /> 10'grout overlap is not required. Could also add instance to illustrate Policy 2017-2 <br />