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Extended Groundwater Receptor Survey (Revised) Shoreham Yard, Minneapolis, Minnesota Mpca Site Id# Vic 5080

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Extended Groundwater Receptor Survey (Revised) Shoreham Yard, Minneapolis, Minnesota Mpca Site Id# Vic 5080 Golder Associates Inc. 1951 Old Cuthbert Road, Suite 301 Cherry Hill, NJ 08034 Tel: (856) 616-8166 Fax: (856) 616-1874 May 22, 2006 Project No.: 023-6105-006 Mr. Rick Jolley Minnesota Pollution Control Agency Voluntary Investigation and Cleanup Unit 520 Lafayette Rd North St. Paul, MN 55155 RE: EXTENDED GROUNDWATER RECEPTOR SURVEY (REVISED) SHOREHAM YARD, MINNEAPOLIS, MINNESOTA MPCA SITE ID# VIC 5080 Dear Mr. Jolley: Golder Associates Inc. (Golder) on behalf of the Soo Line Railroad Company, doing business as Canadian Pacific Railway, and Ashland Inc., has prepared the attached Figure and Tables in response to MPCA’s request (formalized in MPCA’s letter dated January 20, 2006) to extend the 2004 Groundwater Receptor Survey for the above site (AMEC, 2004) south to the Mississippi River. Revisions based on MPCA’s comments dated March 22 and March 23, 2006, transmitted via electronic mail, are incorporated. The area included in this extended survey is bounded to the north by St. Anthony Parkway, to the west and south by the Mississippi River, and to the east by a north-south line located one mile east of Central Avenue. The Minnesota Department of Health (MDH) County Well Index (CWI) and the Minnesota Department of Natural Resources (MDNR) Water Appropriations Permit Program databases were used as the data sources to identify potential receptors. The CWI lists all wells for which a construction permit has been issued, including monitoring wells, and includes wells that are no longer in use. The MDNR database lists wells that are permitted for extraction: Water Appropriation Permits are required for any well that will withdraw in excess of 10,000 gallons per day or one million gallons per year. The locations of wells within the prescribed area that are listed in the CWI, are shown on Figure 1, and details are provided in Table 1, including boring depths and the associated aquifer code, where available. The key for the CWI aquifer codes is included as Attachment A. Closed wells for which MDH has received formal documentation of closure1, are not included in Figure 1 and Table 1. Table 2 lists the wells from the MDNR database, together with the associated aquifer code and reported water withdrawal for the latest year available, 2004. The approximate locations2 of the extraction wells are also shown on Figure 1. In instances where wells are listed in both the CWI and MDNR databases with different locations, the CWI location is used. The 1 Often other wells may no longer be in use, but formal closure documentation has not been provided to MDH. Such wells are included in the attachments to this letter, as are non Shoreham Yard-related monitoring wells. 2 MDNR does not release exact locations for security reasons. OFFICES ACROSS ASIA, AUSTRALIA, EUROPE, NORTH AMERICA, SOUTH AMERICA Minnesota Pollution Control Agency May 22, 2006 Mr. Rick Jolley -2- 023-6105 most southerly VIC site-related monitoring wells that were installed in late 2005, MW05-08- OPSH, MW05-09-OPSH, and MW05-10-OPSH3 are shown on Figure 1 for reference. Review of the well information provided with this letter indicates the following: • The nearest permitted extraction wells to MW05-08-OPSH are at Minnesota Metal Finishing (well 122253), Stewart Lumber (well 563380) and Interplastic Corporation (wells 539578 and 657324); • Each of these wells is at least 4,000 feet south of monitoring well MW05-08-OPSH; • The Stewart Lumber and Interplastics wells are shallow wells (less than 40 feet deep) and in 2004, the most recent year of records, Stewart Lumber did not use its well, and Interplastic Corporation reported a total combined withdrawal from both wells of 2.0 million gallons. MDNR’s records list the Interplastic Corporation wells as recovery wells for pollution containment; • Interplastic Corporation wells 539578 and 657324 have the same location in the MDNR database; • Minnesota Metal Finishers (MMF) reportedly withdrew 8.8 million gallons from well 122253 in 2004. Inquiries made by MDA have confirmed that MMF uses the extracted water for production, but not for potable purposes (MDA, 2006). The MMF well extracts from an open hole between 164 and 253 ft bgs (678-589 ft. MSL) and reportedly intercepts the St. Peter Sandstone throughout this interval. The St. Peter/OPD contact elevations for other wells in the vicinity of the MMF well are as follows (see Figure 1): • 200880 (Minneapolis Junction), elevation 619 ft msl; • 200882 (Minneapolis Junction), elevation 632 ft msl; • 200384 (Metallurgical Inc.), elevation 587 ft msl; and, • 200596 (J. S. Lane), elevation 603 ft msl. Well 200880, which is approximately 400-feet west of the MMF well indicates a St. Peter/OPD contact that would be 30-feet above the base of the open interval of the MMF well. Well 200384, which is approximately 750-feet south of the MMF well, indicates a St. Peter/OPD contact that approximates the base of the open interval of the MMF well. Accordingly, the lower portion of the open interval of the MMF well is at least adjacent to the OPD formation, and may in fact penetrate the OPD. In either case, the MMF well may partially draw from the upper portion of the OPD; and, • Minneapolis Junction wells 200880, 200881 and 200882 are 1060 to 1070 ft deep. The CWI notes that well 200881 has been abandoned. According to the current property owner, the remaining two wells are not currently in use and have not been used for some time. Despite extensive efforts, these wells could not be field located during well abandonment activities in the 1990s. MDA has also investigated the status of many other wells in the vicinity that are not permitted for extraction by MDNR, but which are included in the CWI, including wells proximate to the Shoreham Yard monitoring wells. The results of their survey (MDA, 2006) are provided as Attachment B and do not identify any potable use of groundwater. The current extent of the Special Well Construction Area (SWCA) that was established by MDH in connection with the Twin Cities Army Ammunition Plant (TCAAP) site is also shown on Figure 1, and encompasses the area east of Central Avenue from the Shoreham facility south to 3 Wells MW05-67-OPOD and MW05-68-OPSH that were installed in December 2005 as part of the Cedar Service Site work, are also indicated. Minnesota Pollution Control Agency May 22, 2006 Mr. Rick Jolley -3- 023-6105 the Mississippi River. Wells within the SWCA may not be constructed or modified until after the MDH has reviewed and approved plans for the proposed activity4. It is also our understanding that MDH is currently considering expanding the SWCA west to the Mississippi River, which would then encompass the entire area covered by this expanded receptor survey. We trust that this information is sufficient for your present purposes, but if you have any questions or require further information, please do not hesitate to contact us. Very truly yours, GOLDER ASSOCIATES INC. Allen C. Kane P. Stephen Finn, C.Eng. Senior Hydrogeologist Principal PSF/ACK/bjb g:\projects\023-6105 cpr\receptor survey\letter - mpca receptor survey rev.doc cc: Patrice Jensen, MPCA James Kelly, MDH Charlie Duffy, Soo Line James Vondracek, Ashland Inc. List of References AMEC Earth and Environmental, Inc., 2004. Groundwater Receptor Survey Report, VIC Site VP 5080, Canadian Pacific Railway, Shoreham Facility, Minneapolis, MN MDH, 2006. http://www.health.state.mn.us/divs/eh/cwi/ 4 http://www.health.state.mn.us/divs/eh/wells/sp_tcaap.html A@ A@ A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@ A@A@ A@ A@ A@A@ A@A@ A@ A@ A@ A@ A@A@A@A@ A@A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@A@ A@ A@ A@ A@ A@A@A@ A@A@ A@ A@ A@ A@A@ A@A@ A@ A@A@ A@A@ A@ A@ A@ A@A@ A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@ A@ A@ A@A@ A@A@ A@ A@ A@ A@A@A@A@ A@ A@ A@A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ A@ 236031 A@ A@ A@ 200209 200201 A@ A@ 200202 A@ A@ 200208 200203 200204 A@ A@ A@ A@ A@ . A@ A@ A@ A@ A@ 200588 A@ A@ A@ &< A@ A@ A@A@ A@ A@A@ A@ A@ A@ A@ A@ MW05-10-OPSH A@ A@A@ A@A@ ED A@ A@ A@ A@ A@ 660019 A@ A@ 255950 A@A@ A@ &< &< &<660020 &< A@ A@ A@ 200252 660021 149822 200258 A@ A@ A@ MW05-09-OPSH A@A@ A@ 200253 ED A@ A@ A@ A@ A@ A@A@ A@ A@ 200257 A@ A@ A@ A@ 240145 A@ A@ A@ 233241 A@ A@ A@ A@A@ 200255 200256 A@ 240632 A@ MW05-08-OPSH A@ 175857 ED A@ 255292 A@ 235549 A@ A@ A@ A@ A@ 232307A@ A@ A@ 235550 200264 436933 200260 ED A@ A@ A@ 200265 MW05-67-OPOD A@ A@ MW05-67-MS A@ A@ A@ A@ 234562 A@ A@ 235551 MW05-68-OPSH A@ A@A@A@ A@ A@ A@ ED A@ A@ A@ MW05-68-MS A@ A@ A@ A@ 657324 A@ A@A@ 255735 A@ &< A@ A@ A@ 200609 225896 A@A@ A@ A@ A@ 539578 A@ A@ 200268 A@ A@ A@ 233221 A@ 200612 A@ A@ 223841 A@ A@ 251801 A@ 200263 &< A@ A@ A@ A@ &< 122253 563380 234004 200882 A@A@ A@ 235552 200880 A@ 234005 A@ 242946 A@A@ A@ A@ A@ 200384 234003 A@ A@ A@ A@ A@ 232311 A@ A@ A@ A@ A@ &< A@ A@ A@ A@ 223992 200631 A@5 A@ ) A@ &< 4 A@5 A@ d 1 4 A@ 6 A@1 A@ x A@ A@ A@5 6 A@5 m 448766 8 5 4 A@ .
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