CRFQ AGR26-16 - Exhibit B 7-BC15 Piezometer Data Summary.pdf
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- Attached to
- Brush Creek 15 Dam Rehabilitation-Construction
- Solicitation number
- CRFQ-1400-AGR2600000016-5
- Issued by
- Kanawha County, West Virginia
About this file
This is a piezometer data summary exhibit supporting the Brush Creek 15 Dam Rehabilitation-Construction project in West Virginia. The document presents hydrological monitoring data collected from piezometers installed at the dam site to measure groundwater pressure and seepage conditions. The piezometer readings track subsurface water levels across multiple monitoring points at various depths within and around the dam structure, providing critical baseline data for assessing the dam's current hydrogeological conditions prior to rehabilitation work. This data collection serves as essential pre-construction documentation to establish existing groundwater behavior and identify any anomalies or areas of concern that require attention during the rehabilitation design and construction phases.
The piezometer data summary functions as technical supporting documentation for the request for qualifications and/or proposals related to the dam rehabilitation project. The measurements and analysis contained in this exhibit provide contractors with specific site conditions and subsurface hydrology information necessary for accurate project planning, bid preparation, and construction methodology development. This data is fundamental to understanding seepage patterns, groundwater flow directions, and potential stabilization requirements that will inform rehabilitation design specifications and construction sequencing for the Brush Creek 15 Dam project.
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NRCS - West Virginia Final Geotechnical Investigation Report – Brush Creek Site 15
Summary of Water Levels in Observations at Brush Creek Site 15 Normal Pool EL (ft) 2489.5
Boring ID Ground Surface Elevation (ft)
Depth to Water (ft)
Elevation of Water (ft)
Date of Water Level Reading Notes Event Reservoir Level
B-51A 2508.1 68.7 2439.5 3/20/2019 11:24 Observation Well B-51A 2508.1 56.7 2451.4 4/3/2019 11:20 Observation Well B-51A 2508.1 62.0 2446.1 4/17/2019 15:57 Observation Well B-51A 2508.1 70.9 2437.2 5/1/2019 11:25 Observation Well B-51A 2508.1 71.6 2436.5 5/6/2019 12:20 Observation Well B-51A 2508.1 72.8 2435.3 5/9/2019 12:15 Observation Well B-51A 2508.1 72.4 2435.7 5/13/2019 12:14 Observation Well B-51A 2508.1 46.1 2462.0 9/29/2021 18:15 Observation Well Low Pool (~8ft.)
B-51A 2508.1 48.1 2460.0 2/1/2022 11:30 Observation Well ~10’ low B-51A 2508.1 47.2 2460.9 5/12/2022 0:00 Observation Well ~0.5’ high B-51A 2508.1 46.2 2461.9 2/7/2023 0:00 Observation Well B-51A 2508.1 46.5 2461.7 10/1/2023 0:00 Observation Well B-51A 2508.1 46.3 2461.8 1/30/2024 0:00 Observation Well Normal B-51A 2508.1 46.3 2461.8 4/29/2024 0:00 Observation Well Normal B-51A 2508.1 46.2 2461.9 7/24/2024 0:00 Observation Well Pool Level Low B-651 2436.8 11.4 2425.4 3/18/2019 14:37 Encountered B-651 2436.8 0.0 2436.8 3/18/2019 17:02 Completion B-651 2436.8 0.2 2436.6 3/19/2019 7:30 After Drilling B-651 2436.8 -0.7 2437.5 3/19/2019 11:39 Artesian Casing Pulled B-651 2436.8 -1.1 2437.9 4/3/2019 12:00 Artesian After Drilling B-651 2436.8 -1.5 2438.3 4/17/2019 15:44 Artesian Observation Well B-651 2436.8 -2.4 2439.2 5/6/2019 13:14 Artesian Observation Well B-651 2436.8 -2.1 2438.9 5/6/2019 17:15 Artesian Observation Well B-651 2436.8 -2.1 2438.9 5/9/2019 14:00 Artesian Observation Well B-651 2436.8 -2.7 2439.5 5/13/2019 11:57 Artesian Observation Well B-651 2436.8 0.0psi @guage - 9/29/2021 18:00 Observation Well Low Pool (~8ft.)
B-651 2436.8 0.0psi @guage - 2/1/2022 11:30 Observation Well B-651 2436.8 0.0psi @guage - 5/12/2022 0:00 Observation Well ~0.5’ high B-651 2436.8 0.0psi @guage - 2/7/2023 0:00 Observation Well Normal GF-1D 2507.4 33.5 2473.9 3/11/2019 17:40 Observation Well GF-1D 2507.4 33.4 2474.0 3/16/2019 13:50 Observation Well GF-1D 2507.4 33.7 2473.7 3/19/2019 8:22 Observation Well
Project 18C35013.04 Page 1 of 4 Aterra-Schnabel JV
Summary of Water Levels in Observations at Brush Creek Site 15 Normal Pool EL (ft) 2489.5
Boring ID Ground Surface Elevation (ft)
Depth to Water (ft)
Elevation of Water (ft)
Date of Water Level Reading Notes Event Reservoir Level
GF-1D 2507.4 34.6 2472.8 4/3/2019 13:18 Observation Well GF-1D 2507.4 33.9 2473.5 4/17/2019 15:30 Observation Well GF-1D 2507.4 32.8 2474.6 5/6/2019 12:54 Observation Well GF-1D 2507.4 38.3 2469.1 8/31/2021 10:35 Observation Well Low Pool GF-1D 2507.4 39.6 2467.8 9/29/2021 17:30 Observation Well Low Pool (~8ft.)
GF-1D 2507.4 41.9 2465.5 2/1/2022 11:40 Observation Well ~10’ low GF-1D 2507.4 35.9 2471.5 6/9/2022 12:00 Observation Well Normal GF-1D 2507.4 36.1 2471.3 2/7/2023 0:00 Observation Well Normal
GF-1D 2507.4 37.4 2470.0 10/1/2023 0:00
GF-1D 2507.4 37.2 2470.2 1/30/2024 0:00 Observation Well Normal GF-1D 2507.4 37.4 2470.0 4/29/2024 0:00 Observation Well Normal GF-1D 2507.4 37.4 2470.0 7/24/2024 0:00 Observation Well Pool Level Low GF-1S 2507.4 47.2 2460.2 3/11/2019 17:40 Observation Well GF-1S 2507.4 47.6 2459.8 3/16/2019 13:51 Observation Well GF-1S 2507.4 48.5 2458.9 3/19/2019 8:28 Observation Well GF-1S 2507.4 47.8 2459.6 4/3/2019 13:14 Observation Well GF-1S 2507.4 21.4 2486.0 4/17/2019 15:30 Observation Well GF-1S 2507.4 30.5 2476.9 5/6/2019 12:57 Observation Well GF-1S 2507.4 24.2 2483.2 8/31/2021 10:35 Observation Well Low Pool GF-1S 2507.4 44.1 2463.3 9/29/2021 17:30 Observation Well Low Pool (~8ft.)
GF-1S 2507.4 46.0 2461.4 2/1/2022 11:40 Observation Well ~10’ low GF-1S 2507.4 42.6 2464.8 6/9/2022 12:00 Observation Well Normal GF-1S 2507.4 29.9 2477.5 2/7/2023 0:00 Observation Well Normal
GF-1S 2507.4 30.3 2477.2 10/1/2023 0:00
GF-1S 2507.4 30.1 2477.3 1/30/2024 0:00 Observation Well Normal GF-1S 2507.4 30.3 2477.2 4/29/2024 0:00 Observation Well Normal GF-1S 2507.4 30.2 2477.2 7/24/2024 0:00 Observation Well Pool Level Low GF-2D 2476.5 33.1 2443.4 3/11/2019 17:50 Observation Well GF-2D 2476.5 33.3 2443.2 3/16/2019 13:53 Observation Well GF-2D 2476.5 33.2 2443.3 3/19/2019 9:10 Observation Well GF-2D 2476.5 33.0 2443.5 4/3/2019 12:20 Observation Well GF-2D 2476.5 33.3 2443.2 4/17/2019 15:35 Observation Well
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Summary of Water Levels in Observations at Brush Creek Site 15 Normal Pool EL (ft) 2489.5
Boring ID Ground Surface Elevation (ft)
Depth to Water (ft)
Elevation of Water (ft)
Date of Water Level Reading Notes Event Reservoir Level
GF-2D 2476.5 33.1 2443.4 5/6/2019 13:04 Observation Well GF-2D 2476.5 34.1 2442.4 8/31/2021 11:00 Observation Well Low Pool GF-2D 2476.5 33.9 2442.6 9/29/2021 17:40 Observation Well Low Pool (~8ft.)
GF-2D 2476.5 36.3 2440.2 2/1/2022 11:40 Observation Well ~10’ low GF-2D 2476.5 35.3 2441.2 6/9/2022 12:10 Observation Well Normal GF-2D 2476.5 20.0 2456.5 2/7/2023 0:00 Observation Well Normal
GF-2D 2476.5 20.6 2455.9 10/1/2023 0:00
GF-2D 2476.5 20.4 2456.1 1/30/2024 0:00 Observation Well Normal GF-2D 2476.5 20.6 2455.9 4/29/2024 0:00 Observation Well Normal GF-2D 2476.5 20.6 2455.9 7/24/2024 0:00 Observation Well Pool Level Low GF-2S 2476.5 31.0 2445.5 3/11/2019 17:50 Observation Well GF-2S 2476.5 - - 3/16/2019 13:54 Dry Observation Well GF-2S 2476.5 - - 3/19/2019 9:15 Dry Observation Well GF-2S 2476.5 - - 4/3/2019 12:25 Dry Observation Well GF-2S 2476.5 - - 4/17/2019 15:35 Dry Observation Well GF-2S 2476.5 31.3 2445.2 5/6/2019 13:01 Observation Well GF-2S 2476.5 - - 8/31/2021 11:00 Dry Observation Well Low Pool GF-2S 2476.5 - - 9/29/2021 17:40 Dry Observation Well Low Pool (~8ft.)
GF-2S 2476.5 - - 2/1/2022 11:50 Dry Observation Well ~10’ low GF-2S 2476.5 - - 6/9/2022 12:10 Dry Observation Well Normal GF-2S 2476.5 33.0 2443.5 2/7/2023 0:00 Observation Well Normal
GF-2S 2476.5 33.7 2442.9 10/1/2023 0:00
GF-2S 2476.5 33.6 2442.9 1/30/2024 0:00 Observation Well Normal GF-2S 2476.5 33.7 2442.9 4/29/2024 0:00 Observation Well Normal GF-2S 2476.5 33.6 2442.9 7/24/2024 0:00 Observation Well Pool Level Low GF-3 2437.8 0.3 2437.5 3/11/2019 18:00 Observation Well GF-3 2437.8 -0.5 2438.3 3/16/2019 13:56 Artesian Observation Well GF-3 2437.8 -0.2 2438.0 4/3/2019 12:16 Artesian Observation Well GF-3 2437.8 -0.8 2438.6 4/17/2019 15:40 Artesian Observation Well GF-3 2437.8 -1.3 2439.1 5/6/2019 13:08 Artesian Observation Well GF-3 2437.8 1.5 2436.3 8/31/2021 11:05 Observation Well Low Pool GF-3 2437.8 1.5 2436.3 9/29/2021 17:45 Observation Well Low Pool (~8ft.)
Project 18C35013.04 Page 3 of 4 Aterra-Schnabel JV
Summary of Water Levels in Observations at Brush Creek Site 15 Normal Pool EL (ft) 2489.5
Boring ID Ground Surface Elevation (ft)
Depth to Water (ft)
Elevation of Water (ft)
Date of Water Level Reading Notes Event Reservoir Level
GF-3 2437.8 2.6 2435.2 2/1/2022 11:50 Observation Well ~10’ low GF-3 2437.8 2.3 2435.5 6/9/2022 12:20 Observation Well Normal GF-3 2437.8 1.8 2436.0 2/7/2023 0:00 Observation Well Normal
GF-3 2437.8 1.9 2435.9 10/1/2023 0:00
GF-3 2437.8 1.8 2436.0 1/30/2024 0:00 Observation Well Normal GF-3 2437.8 1.9 2435.9 4/29/2024 0:00 Observation Well Normal GF-3 2437.8 1.9 2435.9 7/24/2024 0:00 Observation Well Pool Level Low
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