Exhibit G Monitoring Locations and SeepCoordinates.pdf
PDF 83 KB Posted
- Attached to
- Captain Jack Mill Superfund Site O & M
- Solicitation number
- RFP FAAA 2026000184 2
- Issued by
- Arapahoe County, Denver City, Colorado
About this file
Exhibit G is a monitoring locations and seep coordinates document for the Captain Jack Mill Superfund Site Operations & Maintenance project in Colorado. The document establishes a comprehensive environmental sampling framework encompassing groundwater, mine pool, and surface water monitoring locations across the site. The monitoring network includes four groundwater wells (CJM-GW-MW1 through MW4), multiple seep sampling points, dew drop locations, grab sampling stations at the treatment plant influent and outfall, and eleven designated surface water monitoring locations (CJM-SW-01 through SW-11). The seep monitoring component identifies twenty-one discrete seep locations with corresponding latitude and longitude coordinates, ranging from coordinates 40.0642949, -105.5182236 for Seep-01 to 40.0653218, -105.5136070 for Seep-20. Sampling methodologies include grab samples, field data collection, and continuous monitoring protocols tailored to each location type and environmental medium being assessed.
The document serves as a technical reference establishing the spatial distribution and identification system for all environmental sampling points required to support ongoing operations and maintenance activities at the Captain Jack Mill Superfund Site. The coordinate data provided enables precise locational accuracy for field teams conducting environmental monitoring, ensuring consistency in sampling efforts and facilitating long-term trend analysis of groundwater and surface water quality conditions across the site. The structured tagging system for each monitoring location (utilizing the CJM-GW and CJM-SW prefixes) provides standardized nomenclature for data management and reporting purposes throughout the site's remedial operations.
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Text version
Location Tag Sampling Method
CDOT ROW #1 CJM-GW-ROW1
Dew Drop #1 CJM-GW-DD1 Dew Drop #2 CJM-GW-DD2
Monitoring Well #1 CJM-GW-MW1 Monitoring Well #2 CJM-GW-MW2
Monitoring Well #3 CJM-GW-MW3 Monitoring Well #4 CJM-GW-MW4
CDOT ROW #2 CJM-GW-ROW2 Field Data CDOT ROW #2 CJM-GW-ROW2 Grab Sample
Dew Drop #3 CJM-GW-DD3 Grab Sample
Sample Port #1 CJM-GW-SP1
Midway #1 CJM-GW-MID1 Midway #2 CJM-GW-MID2 Niwot #1 CJM-GW-NIW1 Niwot #2 CJM-GW-NIW2
Niwot #3 CJM-GW-NIW3
Treatment Plant Influent CJM-GW-TPI Grab Sample
Treatment Plant Influent CJM-GW-TPI Grab Sample Treatment Plant Outfall CJM-SW-TPO
Surface Water #1 CJM-SW-01
Surface Water #2 CJM-SW-02 Field Data Surface Water #2 CJM-SW-02 Grab Sample Surface Water #3 CJM-SW-03 Surface Water #4 CJM-SW-04
Surface Water #5 CJM-SW-05 Surface Water #6 CJM-SW-06 Field Data
Surface Water #6 CJM-SW-06 Grab Sample Surface Water #7 CJM-SW-07
Surface Water #8 CJM-SW-08 Surface Water #9 CJM-SW-09
Surface Water #10 CJM-SW-10 Field Data
Surface Water #10 CJM-SW-10 Grab Sample
Surface Water #11 CJM-SW-11
Seeps CJM-SW-SEEP-##
Notes:
Captain Jack Mill Sampling Locations Sample Type
Groundwater
Mine Pool
Surface Water
Not Regularly Sampled Groundwater Location Mine Pool Location Surface Water Location
Seep Number Latitude Longitude Seep-01 40.0642949 -105.5182236 Seep-02 40.0649968 -105.5204100 Seep-03 40.0649247 -105.5204212 Seep-04 40.0649341 -105.5203392 Seep-05 40.0629228 -105.5127373 Seep-06 40.0629646 -105.5134646 Seep-07 40.0647052 -105.5130672 Seep-08 40.0647403 -105.5132903 Seep-09 40.0647485 -105.5134662 Seep-10 40.0626721 -105.5144648 Seep-11 40.0624901 -105.5151386 Seep-12 40.0646027 -105.5119602 Seep-13 40.0646856 -105.5122516 Seep-14 40.0647795 -105.5126418 Seep-15 40.0647737 -105.5127432 Seep-16 40.0629948 -105.5126337 Seep-17 40.0648758 -105.5130843 Seep-18 40.0652322 -105.5135469 Seep-19 40.0647781 -105.5130261 Seep-20 40.0653218 -105.5136070 Seep-21 40.0648031 -105.5135194
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