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Updated: Mar. 22, 2017

Maps - North Pole Refinery

thumbnail map of Proposed North Pole distribution system area - sulfolane contamination

2017 North Pole Water Distribution System Preliminary Design


Based on preliminary information. See more information on the agreement to provide piped water to the areas affected by sulfolane contamination from the former North Pole Refinery.

 

 

 

thumbnail map of study area - sulfolane contamination

2016 4th Quarter: Approximate extent of sulfolane impacts in offsite monitoring wells and private wells

- from Flint Hills’ 2nd Semiannual 2016 Offsite Groundwater Monitoring Report (Figure 3-8)

 

Note: The orange dashed line outlines the approximate extent of the plume. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (454 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

thumbnail map of study area - sulfolane contamination

2016 3rd Quarter: Offsite Sulfolane Trends, monitoring wells and private wells

- from Flint Hills’ 2nd Semiannual 2016 Offsite Groundwater Monitoring Report (Figure 1-A)

 

Note: The orange dashed line outlines the approximate extent of the plume. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (742 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

thumbnail map of study area - sulfolane contamination

2015 3rd quarter: Approximate extent of sulfolane impacts in offsite monitoring wells and private wells

- from Flint Hills’ 2nd Semiannual 2015 Offsite Groundwater Monitoring Report (Figure 4-9)

 

Note: The yellow dashed line outlines the approximate extent of the plume. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (821 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

2015 3rd quarter: Private well sulfolane results

- from Flint Hills' 2nd Semiannual 2015 Offsite Groundwater Monitoring Report (Figure 3-1)

 

Note: The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (676 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2015 3rd quarter: Offsite Sulfolane Trends, monitoring wells and private wells

- from Flint Hills’ 2nd Semiannual 2015 Offsite Groundwater Monitoring Report (Figure 1-A)

 

Note: The yellow dashed line outlines the approximate extent of the plume. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (741 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2015 1st quarter: Approximate extent of sulfolane impacts in offsite monitoring wells and private wells

- Flint Hills’ 1st Semiannual 2015 Offsite Groundwater Monitoring Report (Figure 4-9)

 

Note: The yellow dashed line outlines the approximate extent of the plume - the blue areas represent various depths of permafrost. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (823 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2015 2nd quarter: Private well sulfolane results

- from Flint Hills' 1st Semiannual 2015 Offsite Groundwater Monitoring Report (Figure 3-1)

 

Note: This map shows private well data only. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (782 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2015 1st quarter: Offsite Sulfolane Trends, monitoring wells and private wells

- from Flint Hills’ 1st Semiannual 2015 Offsite Groundwater Monitoring Report

 

Note: The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (840 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2013 4th Quarter: Sulfolane concentrations in private wells
- from Flint Hills’ 4th Quarter 2013 Groundwater Monitoring Report

 

Note: This map shows private well data only. The most recent results are shown, however not all wells were sampled this quarter. Note that details on well depths are not included. Units are in µg/L or micrograms per liter; one µg/L = one part per billion or ppb.

 

Download Map (710 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2013 3rd Quarter: Trends in sulfolane concentrations (increasing, decreasing, or stable) in private wells and monitoring wells

- from Flint Hills’ 3rd Quarter 2013 Groundwater Monitoring Report

 

Note: This map does not give sulfolane concentrations: it only shows whether concentrations have been going up, down, or unchanging.

 

Download Map (764 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2013 3rd Quarter: Sulfolane concentrations in private wells
- Fig. 3-1 from the 3rd Quarter 2013 Groundwater Monitoring Report

 

Note:  This map shows private well data only (no monitoring wells) and gives no information on well depth. Some wells were sampled periodically between 2009 and 2013, with the most recent results shown, and others were only sampled once during 2009 – 2010. Sulfolane concentrations are given in ranges, such as 10 - 14 micrograms per liter ("µg/L"). "Micrograms per liter" equals "parts per billion" or "ppb." DEC's cleanup level at the refinery is 14 parts per billion.

 

Download Map (715 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

thumbnail map of study area - sulfolane contamination

2013 3rd Quarter: Sulfolane concentrations at different depths
- Fig. 4-11 from the 3rd Quarter 2013 Groundwater Monitoring Report

 

Note: This map presents concentrations of sulfolane at different depths. It includes monitoring wells and private drinking water wells during 2012-2013. One map line (or “isopleth”) shows the approximate locations of sulfolane at concentrations of 14 micrograms per liter ("µg/L"), which equals DEC’s cleanup level of 14 parts per billion (ppb). The other isopleth, encompassing a smaller area, shows sulfolane at concentrations of 100 ug/L sulfolane. Actual numerical detections of sulfolane are shown. Non-detections are noted as "<6.20" (or another low number), meaning less than the detection limit. In this example, the detection limit is 6.2 ppb.

 

Download Map (715 KB PDF file) or just click on the map image at left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area.

 

thumbnail map of study area - sulfolane contamination

2013 1st Quarter: Private Well Search Areas and Sulfolane Results

- from the First Quarter 2013 Groundwater Monitoring Report

 

Download Map (630 KB PDF file) or just click on the map image on the left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area." This map gives sulfolane concentrations in ranges, such as 10 - 14 micrograms per liter ("µg/L"). "Micrograms per liter" equals "parts per billion" or "ppb." DEC's cleanup standard at the refinery is 14 parts per billion.

 

thumbnail map of study area - sulfolane contamination

2012 4th Quarter: Sulfolane Concentrations at Water Table

- from the Fourth Quarter 2012 Groundwater Monitoring Report

 

Download Map (630 KB PDF file) or just click on the map image on the left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area." Note: This map uses "<6.20" (or an other low number) to mean "non-detect, or less than the detection limit. In this example, the detection limit is 6.2 parts per billion (ppb). DEC's cleanup standard at the refinery is 14 ppb.

 

thumbnail map of study area - sulfolane contamination

2012 4th Quarter: Sulfolane Concentrations at Water Table (zoomed and cropped version of map above)

- from the Fourth Quarter 2012 Groundwater Monitoring Report

 

Download Map (6.6 MB PDF file) or just click on the map image on the left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area." See note for map above.

 

thumbnail map of study area - benzene contamination

2012 4th Quarter: Benzene Concentrations in Groundwater Monitoring Wells on Refinery Property

- from the Fourth Quarter 2012 Groundwater Monitoring Report

 

Download Map (530 KB PDF file) or just click on the map image on the left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."

 

 

thumbnail map of study area - sulfolane contamination

2011 4th Quarter: Sulfolane Concentrations in Select Groundwater Monitoring Wells 10 to 55 feet Below the Water Table (Data through Fourth Quarter 2011)


Download Map (252KB PDF file) (1.36 MB PDF file) or just click on the map image on the left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."



2011 4th Quarter: Sulfolane Concentrations in Select Groundwater Monitoring Wells at the Water Table (Data through Fourth Quarter 2011)


Download Map (1.40 MB PDF file) or just click on the map image on the left to view a larger version. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."


 


thumbnail map of study area - sulfolane contamination

2011 2nd Quarter: Latest Sulfolane Concentrations in Off-Refinery Monitoring Wells


Download Map (252KB PDF file) or just click on the map image on the left to view a larger version as a GIF. This map is 11x17. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."


 

thumbnail map of study area - sulfolane contamination

2011 2nd Quarter: Latest Sulfolane Concentrations in On-Refinery Monitoring Wells


Download Map (319KB PDF file) or just click on the map image on the left to view a larger version as a JPEG. To print an 8 1/2 x 11 version, on the print menu under "Page Scaling," select "Shrink to Printable Area."


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Earlier Maps

Description
Date
Download
Sulfolane Concentrations in Off-Refinery Monitoring Wells (First Quarter 2011)
1/2011
Sulfolane Concentrations in On-Refinery Monitoring Wells (November 2010 through January 2011)
10/10 - 1/11
Sulfolane Concentrations in Off-Refinery Monitoring Wells (November 2010 through January 2011)
10/10 - 1/11
Sulfolane Concentration in Private Wells, October 2009 through April 15, 2010, Monitoring Wells March 2010
4/15/10
Area of concern with monitoring data - April 14, 2010
4/14/10
Area of concern with monitoring data - Feb. 18, 2010. Monitoring well data from sampling between October 2009 and January 2010. Blue lines are groundwater flow contours.
2/18/10
Horizontal extent of sulfolane contamination in the groundwater, Feb 10, 2010. All wells tested outside the area outlined were free of sulfolane.
2/10/10
Proposed Monitoring well locations, December 2010
12/23/09
December 2009 sample results - offsite wells. Samples were analyzed by two different laboratories, SGS and Pace.
12/4/09
Monitoring wells from the Ford subdivision - Nov. 24, 2009. Additional Monitoring wells, proposed for DEC approval, are marked in yellow.
11/24/09

 

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FOR MORE INFORMATION


For additional help with the maps, contact Will Boger, a DEC Environmental Program Specialist, or call (907) 451-2370.

More historic data is available at the DEC office in Fairbanks.