2023-09-13_REVISION - M1977493 - Laserfiche WebLink

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The facility certification and phased inspections (QAIQC) will be performed by W.W. Wheeler Engineers or their designee. In the specifications (see Drawing No. 6-807-00112) are the QAIQC requirements and standards; key verifications and inspections are summarized as follows: Required Verification and Inspection of Soils: • Verify materials below shallow foundations are adequate to achieve the design bearing capacity (periodic inspections) • Verify excavations are extended to proper depth and have reached proper material (periodic inspections) • Perform classification and testing of compacted fill materials(periodic inspections) • Verify use of proper materials, densities, and lift thicknesses during placement and compaction of compacted fill (continuous inspections) • Prior to placement of compacted fill, observe subgrade and verify that site has been prepared properly (periodic inspections) Required Verification and Inspection of Concrete Construction • Inspection of reinforcing steel and placement (periodic inspection) • Inspection of reinforcing steel welding • Inspection of anchors cast in concrete where allowable loads have been increased or where strength design is used (periodic inspection) • Inspection of anchors post-installed in hardened concrete members (periodic inspection) • Verifying use of required design mix (periodic inspection) • At the time fresh concrete in sampled to fabricate specimens for strength tests, perform slump and air content tests, and determine the temperature of the concrete (continuous inspection) • Inspection of concrete and shotcrete placement for proper application techniques (continuous inspection) • Inspection of maintenance of specified curing temperature and techniques (periodic inspection) • Verification of in-situ concrete strength prior to removal of shores and forms from beams and structural slabs (periodic inspection) • Inspect formwork for shape, location, and dimensions of the concrete member being formed (periodic inspection) 10. During the Division's meeting with Climax on August 2, 2023, Climax stated that the headwaters of Tenmile Creek start at their Outfall 001, not immediately adjacent to the 5 Dam Clear Water Pond Spillway. Please provide documentation that the headwaters of Tenmile Creek begin at Outfall 001. In Regulation 33 (5 Code of Colorado Regulations [CCR] 1002-33), Tenmile Creek is described in the following places (note that"Parshall Flume" is synonymous with Outfall 001 A): • Segment is described in Appx 33-1 (page 184 of current version): 13. Mainstem of Tenmile Creek from the Climax Parshall Flume (39.447656, -106.157003) to a point immediately above the confluence of West Tenmile Creek and all tributaries and wetlands from the source of Tenmile Creek to a point immediately above the confluence with West Tenmile Creek, except for the specific listing in Segment 15. • Section 33.11, page 26: Segmentation: The evidence in these proceedings on Ten Mile Creek have shown that Ten Mile Creek for all intents and purposes begins at Climax property boundary at a place designated as the "Parshall Flume". It is at this point that the natural flows that are intercepted by Climax in the Ten Mile Creek Basin are channeled together and form the source of Ten Mile Creek. Hence, the Commission believes Parshall Flume to be the source of the mainstem of Ten Mile Creek. Also, included in this segment are all tributaries to Ten Mile Creek including those natural tributaries intercepted by Climax. 3