HomeMy WebLinkAbout017 Groundwater Monitoring M NOW A PART OF
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ENGINEERING
895 Technology Boulevard, Suite 203,Bozeman,MT 59718 1406.586.0262
August 22nd,2024
City of Bozeman Planning Department
20 East Olive
Bozeman,MT 59715
RE: Blackwood Groves Groundwater Monitoring
This document contains groundwater monitoring information for the Blackwood Groves subdivision
located on Block 1,Lot 1 and Block 13,Lot 1 of the Blackwood Grove Subdivision Phase 1 and 9,north of
Blackwood Road and Victoria Street, and east of S. 19t1i Ave in Bozeman,MT.
Included in this document is groundwater depth information taken from 13 test pits throughout the site.
Groundwater monitoring was completed by Allied Engineering from April to June 2024. Included is a map
showing the test pit locations where monitoring took place.
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2024 Groundwater Monitoring Data: Summary of 13 Wells
Project Name: Blks 1 and 13, Blackwood Groves Sub.
Project Number: 23 150 32 Discovery Drive
Location: See Maps ALLIED Bozeman, MT 59718
Date Installed: 10/6/23 ENGINEERING Phone (406) 582-0221
Installed By: AESI SERVICES,INC. `S.o' Fax (406) 582-5770
Okerse Pr60-
NOTES:
1) Block 1 is located on NE side of S. 19th Avenue and Victoria Street.
2) Block 13 is located on SE side of S. 19th Avenue and Victoria Street.
3) MW-1 through MW-13 were installed during test pit explorations on 10/6/23.
4) MW-1 through MW-13 were installed in TP-1 through TP-13, respectively.
5) All test pits were dug to a depth of 10.0'below existing ground (EG)surface.
6) All monitoring wells consist of 10'long,4"diameter, perforated PVC pipes.
7) Depths to bottom of MWs range from 9.0'to 9.2'below existing site grades.
8) MW-1 through MW-8 were installed on Lot 1, Block 1.
9) MW-9 through MW-13 were installed on Lot 1, Block 13.
10) Groundwater depths were monitored by AESI from 3/22/24 to 6/17/24.
11) Groundwater depths are below existing ground (EG).
12) "Dry" MWs are noted as dry at bottom of the 9.0'to 9.2'MW depth.
13) Highest(shallowest)groundwater measurement to date in each well:
MW-1 MW-2 MW-3 MW-4 MW-5
Date Time Depth to GW Depth to GW Depth to GW Depth to GW Depth to GW
below EG below EG below EG below EG below EG
(feet) (feet) (feet) (feet) (feet)
10/06/23 N/A 6.3 4.5 6.5 6.5 4.3
03/22/24 4:00 PM 3.7 2.5 3.4 4.7 3.1
03/29/24 10:15 AM 3.7 2.5 3.4 4.7 3.1
04/05/24 10:15 AM 4.2 2.8 3.7 5.0 3.3
04/12/24 10:30 AM 4.7 3.2 4.1 5.4 3.6
04/26/24 10:00 AM 5.3 4.0 4.8 6.0 4.2
05/10/24 12:30 PM 3.7 2.1 3.4 5.0 2.9
05/17/24 10:00 AM 3.9 2.6 3.5 4.7 2.6
05/24/24 1:30 PM 3.9 2.4 3.6 5.0 3.1
06/03/24 10:00 AM 3.5 2.4 3.2 4.5 2.8
06/10/24 10:00 AM 4.5 3.0 4.0 5.3 3.4
06/17/24 12:00 PM 4.2 3.0 3.9 5.0 3.3
Groundwater Monitoring Data: Page 1 of 3
2024 Groundwater Monitoring Data: Summary of 13 Wells
Project Name: Blks 1 and 13, Blackwood Groves Sub.
Project Number: 23 150 32 Discovery Drive
Location: See Maps ALLIED Bozeman, MT 59718
Date Installed: 10/6/23 ENGINEERING Phone (406) 582-0221
Installed By: AESI SERVICES,INC. `S.o' Fax (406) 582-5770
Okerse Pr60-
NOTES:
1) Block 1 is located on NE side of S. 19th Avenue and Victoria Street.
2) Block 13 is located on SE side of S. 19th Avenue and Victoria Street.
3) MW-1 through MW-13 were installed during test pit explorations on 10/6/23.
4) MW-1 through MW-13 were installed in TP-1 through TP-13, respectively.
5) All test pits were dug to a depth of 10.0'below existing ground (EG)surface.
6) All monitoring wells consist of 10'long,4"diameter, perforated PVC pipes.
7) Depths to bottom of MWs range from 9.0'to 9.2'below existing site grades.
8) MW-1 through MW-8 were installed on Lot 1, Block 1.
9) MW-9 through MW-13 were installed on Lot 1, Block 13.
10) Groundwater depths were monitored by AESI from 3/22/24 to 6/17/24.
11) Groundwater depths are below existing ground (EG).
12) "Dry" MWs are noted as dry at bottom of the 9.0'to 9.2'MW depth.
13) Highest(shallowest)groundwater measurement to date in each well:
MW-6 MW-7 MW-8 MW-9 MW-10
Date Time Depth to GW Depth to GW Depth to GW Depth to GW Depth to GW
below EG below EG below EG below EG below EG
(feet) (feet) (feet) (feet) (feet)
10/06/23 N/A 5.5 7.5 6.5 8.5 7.5
03/22/24 4:00 PM 4.3 5.1 4.5 6.1 4.5
03/29/24 10:15 AM 4.3 5.2 4.5 6.1 4.4
04/05/24 10:15 AM 4.6 5.4 4.7 6.3 4.7
04/12/24 10:30 AM 4.9 5.8 5.0 6.6 5.1
04/26/24 10:00 AM 5.4 6.3 5.4 7.1 5.4
05/10/24 12:30 PM 4.5 5.5 4.6 6.2 4.4
05/17/24 10:00 AM 4.3 5.1 4.5 5.9 4.4
05/24/24 1:30 PM 4.5 5.3 4.5 6.1 4.4
06/03/24 10:00 AM 4.0 4.8 4.3 5.6 4.2
06/10/24 10:00 AM 4.7 5.5 4.7 6.2 4.6
06/17/24 12:00 PM 4.5 5.0 4.6 5.9 4.6
Groundwater Monitoring Data: Page 2 of 3
2024 Groundwater Monitoring Data: Summary of 13 Wells
Project Name: Blks 1 and 13, Blackwood Groves Sub.
Project Number: 23-150 32 Discovery Drive
Location: See Maps ALLIED Bozeman, MT 59718
Date Installed: 10/6/23 ENGINEERING Phone (406) 582-0221
Installed By: AESI SERVICES,INC. `S.o' Fax (406) 582-5770
Okerse Pr60-
NOTES:
1) Block 1 is located on NE side of S. 19th Avenue and Victoria Street.
2) Block 13 is located on SE side of S. 19th Avenue and Victoria Street.
3) MW-1 through MW-13 were installed during test pit explorations on 10/6/23.
4) MW-1 through MW-13 were installed in TP-1 through TP-13, respectively.
5) All test pits were dug to a depth of 10.0'below existing ground (EG)surface.
6) All monitoring wells consist of 10'long,4"diameter, perforated PVC pipes.
7) Depths to bottom of MWs range from 9.0'to 9.2'below existing site grades.
8) MW-1 through MW-8 were installed on Lot 1, Block 1.
9) MW-9 through MW-13 were installed on Lot 1, Block 13.
10) Groundwater depths were monitored by AESI from 3/22/24 to 6/17/24.
11) Groundwater depths are below existing ground (EG).
12) "Dry" MWs are noted as dry at bottom of the 9.0'to 9.2'MW depth.
13) Highest(shallowest)groundwater measurement to date in each well:
MW-11 MW-12 MW-13
Date Time Depth to GW Depth to GW Depth to GW
below EG below EG below EG
(feet) (feet) (feet)
10/06/23 N/A 7.0 6.5 6.5
03/22/24 4:00 PM 4.7 4.5 3.2
03/29/24 10:15 AM 4.9 4.7 3.5
04/05/24 10:15 AM 5.2 5.1 4.0
04/12/24 10:30 AM 5.7 5.6 4.5
04/26/24 10:00 AM 6.1 6.0 4.9
05/10/24 12:30 PM 4.9 4.7 3.6
05/17/24 10:00 AM 4.9 4.7 3.7
05/24/24 1:30 PM 5.0 4.7 3.7
06/03/24 10:00 AM 4.6 4.4 3.4
06/10/24 10:00 AM 5.2 4.7 3.9
06/17/24 12:00 PM 5.2 5.0 4.0
Groundwater Monitoring Data: Page 3 of 3