612 March 7, 2016 Andrew Nichols Minnesota Pollution Control Agency Voluntary Investigation An

March 7, 2016

Andrew Nichols Minnesota Pollution Control Agency Voluntary Investigation and Cleanup Program 520 Lafayette Road North St. Paul, Minnesota 55155‐4194

RE: Southwest LRT, Hennepin County, Minnesota No Association Determination (NAD) Request for Metropolitan Council and MnDOT MnDOT Parcel: 612 VP31670/PBP4648

Dear Mr. Nichols,

Metropolitan Council (“Council”) and the Minnesota Department of Transportation (MnDOT) are in the project development phase of the Southwest Light Rail Transit (METRO Green Line Extension) Project (Southwest LRT). The project is registered under Voluntary Investigation Cleanup Program VP31670 and Petroleum Brownfields Program PBP4648. For the Southwest LRT project the Council is planning to purchase property identified for the project as Parcel 612. The parcel identification number(s) for the property is 053‐0602824240037 and 053‐ 0602824240038. History of the Site:

The Council and MnDOT completed a Phase I Environmental Site Assessment for the Southwest LRT. The following summarizes the findings of the Phase I ESA for MnDOT parcel 612.

Phase I ESA Site ID: 122 Phase I ESA Summary: Manufacturing facility, closed VIC/LUST site, removed/closed UST, railroad marshaling yard, RCRA LQG. Leak Site 16249, Leak Site 3960, VIC Site VP18200 There have been structures on this site since the late 1800s used at various times for both residential and multiple commercial uses such as a lumberyard, grain elevator, a railroad marshaling yard, a well drilling company, aluminum finishing, motor shop, blacksmith shop, electroplating, small animal hospital. The site is currently occupied by Northland Aluminum Products. A site investigation completed in the 1990s, revealed the presence of non‐petroleum VOCs at concentrations above the HRLs in groundwater. Metals, pesticides and petroleum VOCs were also detected in groundwater. The site was entered into the VIC program; the site is a closed VIC site. The site has had four fuel oil USTs removed and is a closed LUST site. The current occupant is a RCRA LQG for ignitable and corrosive waste, metals, and solvents with fourteen listed violations.

Identified Impacts: The Council and MnDOT completed a Phase II ESA on the Parcel. The full Phase II ESA was previously submitted under VP31670/PBP4648. Maps depicting the sampling locations are attached to this letter. The following sections summarize the analytes detected in groundwater samples collected from this site. The laboratory results associated with the analytical results may be found in the Phase II ESA report. A summary of the analytical results is included on the attached table.

Southwest LRT NAD Request Parcel: 612 Groundwater Impacts:

A summary of the groundwater analytical results and exceedances is included on the attached table. In summary, groundwater samples detected the following at concentrations above the laboratory reporting limits.

Barium, cis‐1,2‐Dichloroethene, Vinylchloride

Of the compounds detected, the following analytes exceed Minnesota Department of Health (MDH) Health Risk Limits (HRLs) or Groundwater Values (GWV). cis‐1,2‐Dichloroethene, Vinylchloride

In addition to the impacts described above, urban fill material containing solid waste is present on the Parcel. Proposed Action on the Parcel (in addition to general construction and maintenance of the LRT): Total and secondary property acquisition and parking lot for Beltline Station.

I appreciate your attention to this request for a No Association Determination for Parcel 612. Please contact me at 651‐ 366‐3640 if you have any questions. Sincerely,

James L. DeLuca, PG Environmental Mitigation Specialist Southwest LRT Project Office

Attachment cc: Nani Jacobson, Metropolitan Council File

Southwest LRT NAD Request Parcel: 612 Modified Phase I Environmental Site Assessment Segment 4 Site Data Sheets

SITE ID: 122 RANK:High WI0068 Current Site Use: Nordic Ware, North Land Aluminum Products, Vision Bank Ranking Rationale: There have been structures on this site since the late 1800s used at various times for both residential and multiple commercial uses such as a lumberyard, grain elevator, a railroad marshaling yard, a well drilling company, aluminum finishing, motor shop, blacksmith shop, electroplating, small animal hospital. The site is currently occupied by Northland Aluminum Products. A site investigation completed in the 1990s, revealed the presence of non‐ petroleum VOCs at concentrations above the HRLs in groundwater. Metals, pesticides and petroleum VOCs were also detected in groundwater. The site was entered into the VIC program; the site is a closed VIC site. The site has had four fuel oil USTs removed and is a closed LUST site. The current occupant is a RCRA LQG for ignitable and corrosive waste, metals, and solvents with fourteen listed violations. Summary: Manufacturing facility, closed VIC/LUST site, removed/closed UST, railroad marshaling yard, RCRA LQG.

PARCELParcels1 INFORMATION: Parcel (PIN) Address Street City Zip Owner Name Use Year Built 053‐0602824240045 4801 HIGHWAY 7ST. LOUIS PARK 55416 DALQUIST PROPERTIES LLP Vacant Land ‐ Industrial 0

053‐0602824240044 5005 STATE HWY NO 7ST. LOUIS PARK 55416 DALQUIST PROPERTIES LLP Industrial 1962

053‐0602824240038 4725 HIGHWAY 7ST. LOUIS PARK 55416 MFLP4725 LLC ET AL Industrial 1960

053‐0602824240037 3220 NATCHEZ AVE SST. LOUIS PARK 55416 MFLP4725 LLC ET AL Vacant Land ‐ Commercial 0

SITE HISTORY: Date History Source 1896‐1901 Structures are depicted at the site. Topographic maps 1937 A rectangular commercial‐type structure is present in the southeast corner of the site. The remainder Aerial photograph of the site is undeveloped except for a tower in the southwest corner. A surface disturbance is present in the northeast corner of the site. 1947‐1954 The commercial structure in the southeast corner of the site and the tower are still present. A second Aerial photograph, commercial structure and outdoor storage is present in the southwest corner of the site. An irrigation topographic map, and fire canal is depicted traversing the northeastern portion of the site. Numerous structures are depicted at insurance maps the site on the 1951 and 1952 fire insurance maps. The western structure on the northern portion of the site is labeled as aluminum finishing. A dwelling is depicted just east of this structure. A lumber yard is depicted in the southwest corner of the site. A dwelling is depicted just east of the lumberyard. The International Milling Company Interior Elevator is depicted in the southeast corner of the site. Structures associated with International Milling Company include two grain elevators (constructed in 1893) with 35,000‐gallon pressure tanks on both elevators, a motor shop, a blacksmith shop, and a carpenter shop. 1958‐1972 The structures present on the 1947 aerial photographs are still present. In addition, three commercial Aerial photographs and structures are present in the northern portion of the site. An addition connecting two of the northern topographic maps structures is present on the 1966 aerial photograph. A commercial structure is also present at the eastern end of the site by 1966. A road is present just west of the commercial structure at the eastern end of the site. 1963‐1966 Numerous structures are depicted at the site. The three structures on the northern portion of the site Fire insurance maps are labeled as 1) a general merchandise warehouse and aluminum finishing, constructed 1957‐59 and 1962; 2) electro plating, constructed in 1954‐56; and 3) small animal hospital, constructed in 1952. A lumber yard is depicted in the southwest corner of the site. A dwelling is depicted just east of the lumberyard. The structures associated with the International Milling Company Interior Elevator are similar to those depicted on the 1951 and 1952 fire insurance maps.

Short Elliott Hendrickson Inc. MCTO0 122750 SEH ID: 122 High Modified Phase I Environmental Site Assessment Segment 4 Site Data Sheets

SITE HISTORY: Date History Source 1978‐2010 The northern and eastern structures and the tower are still present. Two larger commercial‐type Aerial photographs and structures have replaced the previous commercial structures in the southeast and southwest corners of topographic map, the site. An addition to the eastern large commercial structure is first present on the 2010 aerial FirstSearch report photograph. Northland Aluminum Products, Park Pet Hospital, and Nordic Ware occupied the site. In addition, a frontage road and Beltline Boulevard have been reconfigured in the eastern portion of the site.

SITE RECONAISSANCE: Site Reconnaissance 1963 Fire Insurance Map Observed On Site? Tank(s) NO PHOTO Well(s) Evidence of Spill or Release Petroleum/Hazardous Product Use Evidence of Dumping or Non‐native Fill Evidence of Removed Structures Comments: Large facility, kitchen ware manufacturing, metal fabrication. Monitoring wells on adjacent trail/railroad property to south. MPCA WIMN DATABASE LISTINGS: None Site ID Name Activity Active? C00027060 Nordic Ware Addition CSW Construction Stormwater Permit N MND059679001 Park Pet Hospital Hazardous Waste, Small to Minimal QG N 16249 Former Park Pet Hospital Leak Site N 3960 Northland Aluminum Leak Site N 14724 Northland Aluminum Products Tank Site N 15104 Northland Aluminum Tank Site N VP18200 Northland Aluminum Products Voluntary Investigation & Cleanup (VIC) N ADDITIONAL FIRSTSEARCH DATABASE LISTINGS: None Site ID Name Database Status MND006248868 NORTHLAND ALUMINUM PRODUCTS, INC Hazadrous Waste, LQG LGN 78598 NORTHLAND ALUMINUM PRODUCTS ‐ WASTE Spills CLOSED DEPARTMENT OF AG LISTINGS: None MPCA REGISTERED TANKS: None MPCA_Tank ID AST/UST Stored Product Capacity (gallons) Registration Date Status 001 Under Ground Fuel Oil 100004/8/1991 Removed 001 Under Ground Fuel Oil 10005/2/1991 Removed 002 Under Ground Fuel Oil 20005/2/1991 Removed 003 Under Ground Fuel Oil 40005/2/1991 Removed

CWICOUNTY REGISTERED WELL INDEX WELLS: REGISTERED None WELLS: Unique No. Well Name Listed Use Aquifer Depth (ft) 00216089 PARK PET HOSPITAL Commercial Multiple 130

Short Elliott Hendrickson Inc. MCTO0 122750 SEH ID: 122 High Modified Phase I Environmental Site Assessment Segment 4 Site Data Sheets

MPCA FILE REVIEW INFORMATION VIC/SUPERFUND FILE REVIEW NOTES: None Site ID Notes Source VP18200 A Phase II investigation was conducted in 1998 in the southeast parking lot. VOCs were Phase II Investigation Work Plan; identified in groundwater at the site. Additional investigation in 2003 detected VOC EnecoTech Midwest (2004) contamination in both soil and groundwater. Four USTs were removed in 1990 and 1991. VP18200 An Environmental Audit of the site was completed in 1990. Northland Aluminum Products Additional Site Investigation Report, manufactured metal products (primarily aluminum) and plastic housewares. Industrial Nordic Ware, Vol 1; EnecoTech processes conducted at the facility included painting and chemical coating operations. Midwest (2003), Additional Site Historic uses of the site were identified as residential, lumberyard, grain storage (elevator), Investigation Report, Nordic Ware, Vol railroad marshaling yard, and a well drilling company. Environmental concerns noted 2; EnecoTech Midwest (1998), Results included the presence of four USTs (which were removed in 1990 and in 1991), the former of Limited Phase II Site Assessment, use as a railroad marshaling yard, and the nearby Reilly Tar site as a source of groundwater Northland Aluminum Products, Inc.; contamination. A Phase II investigation conducted in 1998 was limited to the southeast Environ parking lot. VOCs (cis‐1,2‐dichloroethene, tetrachloroethene (PCE), and trichloroethene (TCE) that exceeded MDH Health Risk Limits (HRLs)) were detected in groundwater. Additional investigation in this area conducted in 2003 indicated minimal soil impacts; however, two groundwater samples were found to have concentrations of cis‐1,2‐ dichloroethene, PCE and TCE above their respective HRLs. Saturated conditions were encountered in all of the 2003 borings at depths ranging from 11 to 17 feet bgs. Groundwater flow direction was not measured during the 2003 investigation; however, localized groundwater flow was previously found to be to the east‐northeast. The source of the VOC impacts is unknown but reportedly may be attributed to the possible historic use of degreasers at the Northland Aluminum site or the former railroad marshaling yard. Metals, pesticides, and petroleum VOCs were also identified in soil and groundwater. LEAK FILE REVIEW:REVIEW NOTES: None Leak ID Notes Source 3960 Three fuel oil USTs were removed and a release reported on April 26, 1991. A 1,000‐gallon Petroleum Tank Release Site fuel oil UST was located along the west exterior wall of the manufacturing structure, and a Conditional Closure letter; MPCA 2,000‐gallon UST was located along the north exterior wall of the office/coating building. A (1991) 4,000‐gallon UST was also removed but was observed to be in good condition. Groundwater was encountered at 10 feet during the excavation of the 1,000‐gallon UST and appeared to be perched. Groundwater was not encountered at a depth of 9 feet in the excavation of the 2,000‐gallon UST. 12 cubic yards of soil with elevated levels of organic vapors was excavated and stockpiled on site. Some soil was left in place due to the proximity of the site building and utilities. Analysis of a soil stockpile sample detected TPH at 1,600 mg/kg. The soil was transported off‐site for thermal treatment. Tank basin sidewalls and bottoms exhibited soil vapor readings up to 52 ppm. Four soil samples collected from the tank basins and analyzed for TPH and BTEX found no detection of contaminants in three of the samples. The fourth sample detected 482 ppm TPH. No groundwater samples were collected for laboratory analysis. 3960 The discussion is the same as in the Petroleum Tank Release Site Conditional Closure letter. Excavation Report for Petroleum Release Site; Aptus Inc. (1991) 16249 A petroleum release was reported on October 14, 2005 following a subsurface investigation Phase I/Phase II Environmental Site that was recommended in a previously prepared Phase I ESA. The area around the site had Assessment; Groundwater & commercial/industrial land use from the 1930s through 2005. The site was undeveloped until Environmental Services Inc. (2005) a pet hospital was built in approximately 1950. The structure was heated with fuel oil from a 1,000 gallon UST. The UST was not used after 1955. The UST was excavated in August 2005 at which time the building was vacant. Six borings were advanced at the site. Groundwater in all borings ranged from 8 to 12 feet bgs. Soil samples analyzed for VOCs, SVOCs, DRO and/or metals detected VOCs, SVOCs, and metals. All results were below MPCA SRVs or SLVs with the exception of chromium. DRO was detected at a concentration of 1,200 mg/kg in the soil sample collected from the boring advanced through the former tank basin. Groundwater samples were analyzed for VOCs, SVOCs, and/or DRO and tetrachloroethene, 1,1,2‐ trichloroethane, trichloroethene and 2,4‐dimethylphenal were detected at concentrations

Short Elliott Hendrickson Inc. MCTO0 122750 SEH ID: 122 High Modified Phase I Environmental Site Assessment Segment 4 Site Data Sheets

LEAK FILE REVIEW NOTES: Leak ID Notes Source 16249 exceeding MDH HRLs. DRO was detected at 140,000 µg/l (exceeding the MPCA’s action limits) in a sample collected from the boring advanced through the former tank basin. 16249 Five borings were advanced at the site. A relatively low concentration of DRO was detected in Limited Site Investigation report; the soil sample collected from the boring advanced through the former tank basin. Very low American Engineering Testing (2007) levels of toluene were detected in soil samples collected from two borings and low levels of ethylbenzene and xylene were detected in one soil sample. All of the concentrations were below Tier 1 SRVs. The soil impacts appeared to be limited to the vicinity of the former tank basin. Groundwater was encountered at 11 to 22 feet bgs and was inferred to flow to the northeast. Analysis of groundwater samples detected VOCs below the HRLs. DRO was detected in all samples with two samples having concentrations that exceeding the Health Based Value of 200 µg/L. Diethyl ether, naphthalene, 1,2,4‐trimethylbenzene, sec‐ butylbenzene, and cis‐1,2‐dichloroethene were detected in groundwater samples; however, none of the concentrations exceeded their respective HRLs. The extent of the groundwater impacts appeared to be limited to the vicinity of the former tank basin. AREA WIDE INVESTIGATION NOTES: MPCA ID Notes Source VP0000 This site was identified in the TH 100 from West 26th Street to West 36th Street Corridor Phase I ESA; Peer, (2012) study. There is currently no assigned VIC or Leak file number. An overview of the corridor project is included in Section 5.4.4. Relevant information has been incorporated into this datasheet. SR377 The investigation identifies a multi‐source solvent plume and concerns regarding chlorinated St. Louis Park Soil, Vapor and VOC and benzene vapor intrusion. This site is depicted in the assumed extent of soil vapor Groundwater Investigation; STS (2007) detection and/or the VOC plume. End of Record for Site 122

Short Elliott Hendrickson Inc. MCTO0 122750 SEH ID: 122 High SWLRT Segment 4 Site Historical Aerial Photographs Site ID: 122 WI0068 1937 Aerial Photo 1947 Aerial Photo 1958 Aerial Photo

1966 Aerial Photo 1978 Aerial Photo 1987 Aerial Photo

1997 Aerial Photo 2004 Aerial Photo 2010 Aerial Photo

Table 1 Phase II Environmental Site Assessment Soil Analytical Results MnDot Parcel ID 612

Boring ID GP‐E2076 GP‐E2076 GP‐E2077 GP‐E2077 GP‐E2078 FieldSampleID 2014 Screening Tier 1 Tier 2 Industrial GP‐E2076‐4GP‐E2076‐8GP‐E2077‐3GP‐E2077‐9GP‐E2078‐5 Units Laboratory ID SLV Residential SRV SRV 10288707015 10288707016 10288707018 10288707019 10288707012 Parcel ID 053‐0602824240038 053‐0602824240038 053‐0602824240038 053‐0602824240038 053‐0602824240037 DRO and GRO Diesel Range Organics mg/kgThe MPCA Unrestricted Reuse Criteria for DRO and <8.4 <35.1 129 (T6) <8.5 <27.8 Gasoline Range Organics mg/kgGRO is <100 mg/kg. <27.9 <200 <26.1 <12.5 <85.1 Metals Antimony mg/kg 5.4 12 100 NM NM NM NM NM Arsenic mg/kg 5.8 9 20 2.1 <4.1 4.6 <1.0 6.6 Barium mg/kg 1700 1100 18000 39.5 82.3 55.7 11.3 114 Beryllium mg/kg 2.7 55 230 NM NM NM NM NM Cadmium mg/kg 8.8 25 200 <0.16 <0.61 0.23 <0.16 <0.51 Chromium mg/kg 36 NE NE 6.1 3.1 8.3 8.3 18.5 Copper mg/kg 700 100 9000 NM NM NM NM NM Lead mg/kg 2700 300 700 5.2 <4.1 27.2 1.9 7.5 Mercury mg/kg 3.3 0.5 1.5 <0.019 <0.086 0.16 <0.021 <0.069 Nickel mg/kg 180 560 2500 NM NM NM NM NM Selenium mg/kg 2.6 160 1300 <0.79 <3.0 <0.70 <0.79 <2.5 Silver mg/kg 7.9 160 1300 <0.53 <2.0 <0.47 <0.52 <1.7 Thallium mg/kg 0.89 3 21 NM NM NM NM NM Zinc mg/kg 3000 8700 75000 NM NM NM NM NM TCLP Metals Lead TCLP (Leached=TCLP) mg/l NE NE NE NM NM NM NM NM PCBs Aroclor‐1242 mg/kg NE NE NE NM NM NM NM NM Aroclor‐1260 mg/kg NE NE NE NM NM NM NM NM Pesticides 4,4'‐DDE mg/kg NE 40 80 NM NM NM NM NM Semi‐VOCs 1‐Methylnaphthalene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 2‐Methylnaphthalene mg/kg NE 100 369 <0.36 <1.4 <0.35 <0.37 <1.1 4‐Nitroaniline mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Acenaphthene mg/kg 81 1200 5260 <0.36 <1.4 <0.35 <0.37 <1.1 Acenaphthylene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Anthracene mg/kg 1300 7880 45400 <0.36 <1.4 <0.35 <0.37 <1.1 Benz(a)anthracene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Benzo(a)pyrene mg/kg 1.4 2 3 <0.36 <1.4 <0.35 <0.37 <1.1 Benzo(b)fluoranthene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Benzo(g,h,i)perylene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Benzo(k)fluoranthene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Carbazole mg/kg NE 700 1310 <0.36 <1.4 <0.35 <0.37 <1.1 Chrysene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Dibenz(a,h)anthracene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Dibenzofuran mg/kg NE 104 810 <0.36 <1.4 <0.35 <0.37 <1.1 Di‐N‐Butyl phthalate mg/kg 34 2440 16300 <0.36 <1.4 <0.35 <0.37 <1.1 Fluoranthene mg/kg 670 1080 6800 <0.36 <1.4 <0.35 <0.37 <1.1 Fluorene mg/kg 110 850 4120 <0.36 <1.4 <0.35 <0.37 <1.1 Indeno(1,2,3‐cd)pyrene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Naphthalene mg/kg 4.5 10 28 <0.36 <1.4 <0.35 <0.37 <1.1 Phenanthrene mg/kg NE NE NE <0.36 <1.4 <0.35 <0.37 <1.1 Pyrene mg/kg 440 890 5800 <0.36 <1.4 <0.35 <0.37 <1.1 TCLP Tetrachloroethene TCLP (Leached=TCLP) ug/l NE NE NE NM NM NM NM NM BaP Equivalents Benzo(a)pyrene Equivalents mg/kg 1.4 2 3 0.00 0.0 0.00 0.00 0.0 VOCs 1,1,1‐Trichloroethane mg/kg 56 140 472 <0.056 <0.46 <0.055 <0.054 <0.17 1,2,4‐Trimethylbenzene mg/kg 2.7 8 25 <0.056 <0.46 <0.055 <0.054 <0.17 1,3,5‐Trimethylbenzene mg/kg 2.7 3 10 <0.056 <0.46 <0.055 <0.054 <0.17 4‐Methyl‐2‐pentanone mg/kg 0.76 1700 9000 <0.28 <2.3 <0.28 <0.27 <0.86 Acetone mg/kg 8.4 340 1000 <1.1 <9.2 <1.1 <1.1 <3.4 Benzene mg/kg 0.017 6 10 <0.023 <0.18 <0.022 <0.022 <0.069 cis‐1,2‐Dichloroethene mg/kg 0.21 8 22 <0.056 <0.46 <0.055 <0.054 <0.17 Ethylbenzene mg/kg 1.1 200 200 <0.056 <0.46 <0.055 <0.054 <0.17 Naphthalene mg/kg 4.5 10 28 <0.23 <1.8 <0.22 <0.22 <0.69 n‐Butylbenzene mg/kg NE 30 92 <0.056 <0.46 <0.055 <0.054 <0.17 n‐Propylbenzene mg/kg NE 30 93 <0.056 <0.46 <0.055 <0.054 <0.17 Tetrachloroethene mg/kg 0.042 72 131 <0.056 <0.46 <0.055 <0.054 <0.17 Toluene mg/kg 2.5 107 305 <0.056 <0.46 <0.055 <0.054 <0.17 Trichloroethene mg/kg 0.0023 29 46 <0.056 <0.46 <0.055 <0.054 <0.17 Xylene (Total) mg/kg 5.4 45 130 <0.17 <1.4 <0.17 <0.16 <0.52

MCTO0 129451 1 of 1 3/16/2016 Table 2 Phase II Environmental Site Assessment Groundwater Analytical Results MnDot Parcel ID 612

Boring ID GP‐E2076 GP‐E2077 GP‐E2078 FieldSampleID 2014 MDH GP‐E2076‐2.70W GP‐E2077‐6.11W GP‐E2078‐7.20W Units 2008 GWISV Laboratory ID Drinking Water 10288707017 10288707020 10288707014 Parcel ID 053‐0602824240038 053‐0602824240038 053‐0602824240037 DRO and GRO Diesel Range Organics ug/l NE 200 <101 <110 <102 Gasoline Range Organics ug/l NE 200 <100 <100 <100 Metals Arsenic ug/l NE NE <20.0 <20.0 <20.0 Barium ug/l NE 2000 294 450 358 Chromium ug/l NE NE <10.0 <10.0 <10.0 Nickel ug/l NE 100 NM NM NM Silver ug/l NE 30 <10.0 <10.0 <10.0 Cyanides Cyanide ug/l NE NE NM NM NM Total Cyanide ug/l NE 100 NM NM NM Semi‐VOCs Acenaphthene ug/l NE 400 <10.2 <10.2 <10.2 Acenaphthylene ug/l NE NE <10.2 <10.2 <10.2 Anthracene ug/l NE 2000 <10.2 <10.2 <10.2 Benz(a)anthracene ug/l NE NE <10.2 <10.2 <10.2 Benzo(a)pyrene ug/l NE NE <10.2 <10.2 <10.2 Benzo(b)fluoranthene ug/l NE NE <10.2 <10.2 <10.2 Benzo(g,h,i)perylene ug/l NE NE <10.2 <10.2 <10.2 Benzo(k)fluoranthene ug/l NE NE <10.2 <10.2 <10.2 bis(2‐Ethylhexyl)phthalate ug/l NE 6 <10.2 <10.2 <10.2 Chrysene ug/l NE NE <10.2 <10.2 <10.2 Dibenz(a,h)anthracene ug/l NE NE <10.2 <10.2 <10.2 Fluoranthene ug/l NE 300 <10.2 <10.2 <10.2 Fluorene ug/l NE 300 <10.2 <10.2 <10.2 Indeno(1,2,3‐cd)pyrene ug/l NE NE <10.2 <10.2 <10.2 Naphthalene ug/l 1000 70 <10.2 <10.2 <10.2 Phenanthrene ug/l NE NE <10.2 <10.2 <10.2 Pyrene ug/l NE 200 <10.2 <10.2 <10.2 VOCs 1,2,4‐Trimethylbenzene ug/l 70 100 <1.0 <1.0 <1.0 1,3,5‐Trimethylbenzene ug/l 70 100 <1.0 <1.0 <1.0 2‐Butanone ug/l 4000000 NE <5.0 <5.0 <5.0 Acetone ug/l 500000 4000 <20.0 <20.0 <20.0 Benzene ug/l 40 2 <1.0 <1.0 <1.0 Chlorobenzene ug/l 800 100 <1.0 <1.0 <1.0 Chloroethane ug/l 40000 NE <1.0 <1.0 <1.0 cis‐1,2‐Dichloroethene ug/l 500 6 <1.0 19.3 5.8 Dichlorodifluoromethane ug/l NE 700 <1.0 <1.0 <1.0 Diethyl Ether ug/l NE 200 <4.0 <4.0 <4.0 Naphthalene ug/l 1000 70 <4.0 <4.0 <4.0 Tetrachloroethene ug/l 60 4 <1.0 <1.0 <1.0 Tetrahydrofuran ug/l NE NE <10.0 <10.0 <10.0 trans‐1,2‐Dichloroethene ug/l NE 40 <1.0 <1.0 <1.0 Trichloroethene ug/l 20 0.4 <0.40 <0.40 <0.40 Vinylchloride ug/l 1 0.2 <0.40 1.7 <0.40 Xylene (Total) ug/l NE 300 <3.0 <3.0 <3.0

MCTO0 129451 1 of 1 3/16/2016 H

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Legend 31ST STREET WEST J MnDOT Parcel Boring/Test Pit Location ?! Geoprobe Boring (GP) Location Test Pit (TP) Location Phase I ESA (SEH, 2013-2015) STHY 7 FRONTAGE ROADCOUNTY RD 25 Site with SEH ID 138H and Risk Ranking 001H High Risk Site 002M Medium Risk Site 003L Low Risk Site Southwest LRT Proposed Design 137L SWLRT Alignment

Freight Rail Alignment T

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TPSS S

Tunnel U N 141H

Pond V 134M SOUTH AVENUE LYNN

Bridge H

E GP-E2078

Retaining Wall L

A Depth As Ba Pb Hg Cd R General Design Features 5 6.6 114 7.5 nd nd 133M 136M Permanent Easement T2SRV 20 1800 700 1.5 200 N GP-E2077 Right of Way Easement AT CH Depth As Ba Pb Hg Cd EZ A 3 4.6 55.7 27.2 0.16 0.23 Temporary Easement V E 9 nd 11.3 1.9 nd nd N

Infiltration Ponds U T2SRV 20 1800 700 1.5 200 E

Storm Storage S

O U

BMP Pond T COUNTY ROAD 25 H Topo Major GP-E2076 ?! Topo Minor Depth As Ba Pb Hg Cd 4 2.1 39.5 5.2 nd nd 140M Stations 8 nd 82.3 nd nd nd T2SRV 20 1800 700 1.5 200 Limits of Disturbance 612

Results in bold exceed the 122H ?! MPCA unrestricted reuse Results in Bold/underline CP RAIL RAILROAD 135M exceed the Tier 2 Industrial SRV ?! HCRRA CORRIDOR All results are reported in milligrams per kilogram (mg/kg) Depth - Sample depth in feet D below ground surface OA N R nd - not detected above GLE RK laboratory reporting limits PA na - not analyzed 132M As - Arsenic Beltline Station Ba - Barium Pb - Lead Hg - Mercury 123M BELT LINE BOULEVARD Cad - Cadmium 139M MPCA - Minnesota Pollution Control Agency

NE - NotT Evaluated T2SRVU - Tier 2 Industrial SRV 130M O

E 131M V MapA Reference: 128M HennepinM County Resident E andL Real Estate Services A SSurvey Divison, 2015.

. 124M 0 100 200

Feet 129M 127M

This map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant MnDOT Parcel: 612 - Select Metal Concentrations in Soil that the Geographic Information System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring Select Phase II Results exacting measurement of distance or direction or precision in the Figure 1 depiction of geographic features. The user of this map acknowledges that SEH shall not be liable for any damages which arise out of the Southwest LRT user's access or use of data provided. Hennepin County, Minnesota Prepared March 2016 H

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Legend O 31ST STREET WEST J MnDOT Parcel Boring/Test Pit Location ?! Geoprobe Boring (GP) Location Test Pit (TP) Location Phase I ESA (SEH, 2013-2015) Site with SEH ID STHY 7 FRONTAGE ROADCOUNTY RD 25 and Risk Ranking 138H 001H High Risk Site

002M Medium Risk Site 003L Low Risk Site 137L Southwest LRT Proposed Design SWLRT Alignment

Freight Rail Alignment U

OTTAWA AVENUE SOUTH AVENUE OTTAWA TPSS S E

Tunnel N 141H

V 134M SOUTH AVENUE LYNN Pond A

G Bridge I

L GP-E2078

Retaining Wall A Depth DRO GRO B X R 5 nd nd nd nd 133M 136M General Design Features T2SRV NE NE 10 130 N GP-E2077 Permanent Easement AT CH Depth DRO GRO B X EZ A Right of Way Easement V 3 129 nd nd nd E

N 9 nd nd nd nd

Temporary Easement U T2SRV NE NE 10 130 E

Infiltration Ponds S

O U

Storm Storage T COUNTY ROAD 25 H BMP Pond GP-E2076 Depth DRO GRO B X ?! Topo Major 4 nd nd nd nd 140M Topo Minor 8 nd nd nd nd T2SRV NE NE 10 130 612 Stations Limits of Disturbance 122H ?! Results in bold exceed the MPCA unrestricted reuse ?! CP RAIL RAILROAD 135M Results in Bold/underline HCRRA CORRIDOR exceed the Tier 2 Industrial SRV All results are reported in milligrams per kilogram (mg/kg) AD Depth - Sample depth in feet RO LEN K G below ground surface PAR nd - not detected above laboratory 132M reporting limits Beltline Station na - not analyzed DRO - Diesel Range Organics GRO - Gasoline Range123M Organics B - Benzene BELT LINE BOULEVARD X - Xylenes (total) 139M MPCA - Minnesota Pollution

H Control Agency NE - NotT Evaluated U 130M

T2SRVO - Tier 2 Industrial SRV

E 131M V MapA Reference: 128M HennepinM County Resident E andL Real Estate Services A SurveyS Divison, 2015.

. 124M 0 100 200

Feet 129M 127M

This map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant MnDOT Parcel: 612 - Select Petroleum Concentrations in Soil that the Geographic Information System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring Select Phase II Results exacting measurement of distance or direction or precision in the Figure 2 depiction of geographic features. The user of this map acknowledges that SEH shall not be liable for any damages which arise out of the Southwest LRT user's access or use of data provided. Hennepin County, Minnesota Prepared March 2016 H

A P

MONTEREY AVENUE SOUTH AVENUE MONTEREY

NATCHEZ AVENUE SOUTHAVENUE NATCHEZ

P O

SWLRT Alignment H

Freight Rail Alignment O

OTTAWA AVENUE SOUTH AVENUE OTTAWA

TPSS E

N 141H Tunnel E V 134M SOUTH AVENUE LYNN

Pond H

Bridge E GP-E2078 L

A Depth DRO BaP Naph Retaining Wall R 5 nd 0 nd 133M 136M General Design Features T2SRV NE 3 28 N GP-E2077 AT Permanent Easement CH Depth DRO BaP Naph EZ A 3 129 0 nd V Right of Way Easement E 9 nd 0 nd N

U T2SRV NE 3 28

Temporary Easement E S

Infiltration Ponds O

U T Storm Storage COUNTY ROAD 25 H BMP Pond GP-E2076 Depth DRO BaP Naph ?! Topo Major 4 nd 0 nd 140M 8 nd 0 nd Topo Minor T2SRV NE 3 28 612 Stations

Limits of Disturbance 122H ?!

Results in bold exceed the CP RAIL RAILROAD 135M MPCA unrestricted reuse ?! HCRRA CORRIDOR Results in Bold/underline exceed the Tier 2 Industrial SRV All results are reported in AD milligrams per kilogram (mg/kg) RO LEN Depth - Sample depth in feet K G PAR below ground surface 132M nd - not detected above Beltline Station laboratory reporting limits na - not analyzed DRO - Diesel Range Organics123M BaP - Benzo(a)pyrene Equivalents BELT LINE BOULEVARD Naph - Naphthalene 139M MPCA - Minnesota Pollution Control Agency

NE - T Not Evaluated

U 130M

T2SRVO - Tier 2 Industrial SRV

E 131M V MapA Reference: 128M M HennepinE County Resident L andA Real Estate Services SSurvey Divison, 2015.

. 124M 0 100 200

Feet 129M 127M

This map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant MnDOT Parcel: 612 - Select PAH and DRO Concentrations in Soil that the Geographic Information System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring Select Phase II Results Figure 3 exacting measurement of distance or direction or precision in the depiction of geographic features. The user of this map acknowledges that SEH shall not be liable for any damages which arise out of the Southwest LRT user's access or use of data provided. Hennepin County, Minnesota Prepared March 2016 H

A P

MONTEREY AVENUE SOUTH AVENUE MONTEREY

NATCHEZ AVENUE SOUTHAVENUE NATCHEZ

P O

SWLRT Alignment H

Freight Rail Alignment SOUTH AVENUE OTTAWA

TPSS E U

N 141H Tunnel E V 134M SOUTH AVENUE LYNN

Pond H

E GP-E2078

Bridge L

A Depth PCE TCE c12DCE t12DCE VC R Retaining Wall 5 nd nd nd nd nd 133M 136M General Design Features T2SRV 131 46 22 33 2.2 N GP-E2077 AT Permanent Easement CH Depth PCE TCE c12DCE t12DCE VC EZ A 3 nd nd nd nd nd V Right of Way Easement E 9 nd nd nd nd nd N

U T2SRV 131 46 22 33 2.2

Temporary Easement E S

Infiltration Ponds O

U T Storm Storage COUNTY ROAD 25 H GP-E2076 BMP Pond Depth PCE TCE c12DCE t12DCE VC ?! Topo Major 4 nd nd nd nd nd 140M 8 nd nd nd nd nd Topo Minor T2SRV 131 46 22 33 2.2 612 Stations Limits of Disturbance 122H ?!

Results in bold exceed the ?! CP RAIL RAILROAD 135M MPCA unrestricted reuse HCRRA CORRIDOR Results in Bold/underline exceed the Tier 2 Industrial SRV All results are reported in AD RO milligrams per kilogram (mg/kg) LEN K G Depth - Sample depth in feet PAR below ground surface 132M nd - not detected above Beltline Station laboratory reporting limits na - not analyzed PCE - Tetrachloroethene123M TCE - Trichloroethene BELT LINE BOULEVARD c12DCE - cis-1,2-Dichloroethene 139M t12DCE - trans-1,2-Dichloroethene

VC - H Vinyl Chloride

MPCAU - Minnesota Pollution 130M O Control Agency

NE - E Not Evaluated

T2SRVN - Tier 2 Industrial SRV

E 131M V MapA Reference: 128M M HennepinE County Resident L andA Real Estate Services SSurvey Divison, 2015.

. 124M 0 100 200

Feet 129M 127M

This map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant MnDOT Parcel: 612 - Select Solvent Concentrations in Soil that the Geographic Information System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring Select Phase II Results exacting measurement of distance or direction or precision in the Figure 4 depiction of geographic features. The user of this map acknowledges that SEH shall not be liable for any damages which arise out of the Southwest LRT user's access or use of data provided. Hennepin County, Minnesota Prepared March 2016 H

A P

MONTEREY AVENUE SOUTH AVENUE MONTEREY

NATCHEZ AVENUE SOUTHAVENUE NATCHEZ

P O

003L Low Risk Site 137L Southwest LRT Proposed Design

SWLRT Alignment H T

O Freight Rail Alignment SOUTH AVENUE OTTAWA

TPSS U

N 141H

Tunnel V 134M SOUTH AVENUE LYNN

Pond H

Bridge L

A R Retaining Wall 133M GP-E2078 136M General Design Features Depth DRO GRO B X N 7.2 nd nd nd nd AT GP-E2077 Permanent Easement CH EZ Depth DRO GRO B X GWV 200 200 2 300 A V 6.11 nd nd nd nd Right of Way Easement E

N GWV 200 200 2 300 U

Temporary Easement E

S O

Infiltration Ponds U T Storm Storage COUNTY ROAD 25 H BMP Pond GP-E2076 ?! Depth DRO GRO B X 140M Topo Major 2.7 nd nd nd nd GWV 200 200 2 300 Topo Minor 612 Stations Limits of Disturbance 122H ?!

Results in bold exceed CP RAIL RAILROAD 135M MDH GWVs for drinking water ?! HCRRA CORRIDOR Results in bold/underline exceed MPCA GWISVs All results are reported in micrograms per liter (ug/L) D OA Depth - Approximate groundwater N R GLE sample depth in feet RK below ground surface PA nd - not detected above 132M laboratory reporting limits Beltline Station DRO - Diesel Range Organics GRO - Gasoline Range Organics B - Benzene 123M X - Xylenes (total) BELT LINE BOULEVARD NE - Not Evaluated 139M MDH - Minnesota Department of Health GWV - Minnesota Department of

H Health Groundwater Values

MPCAU - Minnesota Pollution 130M

S Control Agency

GWISVE - Groundwater Screening U Values for Vapor N 131M E Intrusion Pathway V MapA Reference: 128M M HennepinE County Resident L andA Real Estate Services SSurvey Divison, 2015.

. 124M 0 100 200

Feet 129M 127M

This map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant MnDOT Parcel: 612 - Select Petroleum Concentrations in Groundwater that the Geographic Information System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring Select Phase II Results exacting measurement of distance or direction or precision in the Figure 5 depiction of geographic features. The user of this map acknowledges that SEH shall not be liable for any damages which arise out of the Southwest LRT user's access or use of data provided. Hennepin County, Minnesota Prepared March 2016 H

A P

MONTEREY AVENUE SOUTH AVENUE MONTEREY

NATCHEZ AVENUE SOUTHAVENUE NATCHEZ

Legend P O

31ST STREET WEST J MnDOT Parcel Boring/Test Pit Location ?! Geoprobe Boring (GP) Location Test Pit (TP) Location Phase I ESA (SEH, 2013-2015) Site with SEH ID STHY 7 FRONTAGE ROADCOUNTY RD 25 and Risk Ranking 138H 001H High Risk Site 002M Medium Risk Site 003L Low Risk Site Southwest LRT Proposed Design 137L SWLRT Alignment

Freight Rail Alignment T

OTTAWA AVENUE SOUTH AVENUE OTTAWA

TPSS S

Tunnel U N 141H

Pond V 134M SOUTH AVENUE LYNN

Bridge H G

Retaining Wall L

A R General Design Features 133M GP-E2078 136M Permanent Easement Depth PCE TCE c12DCE t12DCE VC N 7.2 nd nd 5.8 nd nd AT GP-E2077 CH Right of Way Easement GWV 4 0.4 6 40 0.2 EZ Depth PCE TCE c12DCE t12DCE VC A V 6.11 nd nd 19.3 nd 1.7 Temporary Easement E

N GWV 4 0.4 6 40 0.2 U

Infiltration Ponds E

S O

Storm Storage U T BMP Pond COUNTY ROAD 25 H Topo Major GP-E2076 ?! Depth PCE TCE c12DCE t12DCE VC 140M Topo Minor 2.7 nd nd nd nd nd GWV 4 0.4 6 40 0.2 Stations 612 Limits of Disturbance ?! Results in bold exceed 122H MDH GWVs for drinking water Results in bold/underline CP RAIL RAILROAD 135M ?! HCRRA CORRIDOR exceed MPCA GWISVs All results are reported in micrograms per liter (ug/L) Depth - Approximate groundwater AD RO sample depth in feet LEN K G below ground surface PAR nd - not detected above laboratory 132M reporting limits Beltline Station PCE - Tetrachloroethene TCE - Trichloroethene c12DCE - cis-1,2-Dichloroethene123M t12DCE - trans-1,2-Dichloroethene BELT LINE BOULEVARD VC - Vinyl Chloride 139M NE - Not Evaluated

MDH - H Minnesota Department of Health

GWV -U Minnesota Department of 130M

S Health Groundwater Values

MPCAE - Minnesota Pollution

N Control Agency E 131M GWISVV - Groundwater Screening A 128M M Values for Vapor E L Intrusion Pathway A MapS Reference: Hennepin County Resident and Real Estate Services Survey Divison, 2015. . 124M 0 100 200 129M Feet 127M

This map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant MnDOT Parcel: 612 - Select Solvent Concentrations in Groundwater that the Geographic Information System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring Select Phase II Results exacting measurement of distance or direction or precision in the Figure 6 depiction of geographic features. The user of this map acknowledges that SEH shall not be liable for any damages which arise out of the Southwest LRT user's access or use of data provided. Hennepin County, Minnesota Prepared March 2016