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 1
- Issued by
- Arapahoe County, Denver City, Colorado
About this file
This is an exhibit document detailing monitoring locations and seep coordinates for the Captain Jack Mill project, likely involving the Colorado Department of Transportation (CDOT) and environmental or water quality monitoring agencies. The document establishes a comprehensive sampling framework across multiple location types including groundwater monitoring wells, surface water sites, treatment plant influent and outfall points, and seep locations. The monitoring network consists of four groundwater monitoring wells, two CDOT right-of-way locations, three dew drop sampling points, multiple Midway and Niwot monitoring stations, eleven surface water monitoring locations, and twenty-one identified seep coordinates. Sampling methods include grab samples, field data collection, and continuous monitoring at designated points. The document provides standardized location tags for each monitoring station to ensure consistent identification and data tracking throughout the project.
The coordinate data for all twenty-one seeps is precisely documented with latitude and longitude specifications, ranging from approximately 40.062 to 40.065 degrees North latitude and -105.512 to -105.515 degrees West longitude, indicating a focused geographic area of monitoring activity. The document classifies monitoring locations by sample type—groundwater, mine pool, surface water, and seeps—with notation that certain locations are not regularly sampled. This structured monitoring protocol appears designed to track water quality and contamination patterns across an abandoned or active mine site and associated treatment infrastructure, providing essential baseline and ongoing environmental data collection necessary for remediation assessment and regulatory compliance.
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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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