Subsurface Environmental Investigation

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Rudolph Conley
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1 Subsurface Environmental Investigation Lake Development East Lake and 21 st Avenue South February 23, 201 Terracon Project No. MP14738A Prepared for: Minneapolis Public Schools Prepared by: Terracon Consultants, Inc.

2 Exhibit A-2 AERIAL PHOTOGRAPHY PROVIDED BY MICROSOFT BING MAPS DIAGRAM IS FOR GENERAL ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES Project Manager: JAF Drawn by: JLH Checked by: JAF Approved by: KPO Project No. MP14738 Scale: AS SHOWN File Name: A-2 Date: 2/ th Ave N. Plymouth, MN 441 SAMPLING S Lake St. Redevelopment SW of Lake and 21st Avenue South

3 PROJECT: Minneapolis Public Schools-Lake St. Redevelopment SITE: SW of Lake and 21st Avenue South SAND (SP), fine, trace gravel, light brown, very dense CLAYEY SAND (SC), dark brown, dense SAND (SP), fine to medium, trace gravel, light brown, medium dense BORING LOG NO. 1 Special School District No. 1 CLIENT: ELEVATION (Ft.) (Ft.) RECOVERY (In.) Page 1 of 1 FIELD TEST RESULTS N= N= N= N=14 THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. GEO SMART LOG-NO WELL MP14738.GPJ TEMPLATE UPDATE GPJ 2/12/ SILTY SAND (SM), light brown, loose - medium dense below 28' Boring Terminated at 40 Feet Stratification lines are approximate. In-situ, the transition may be gradual. Hollow Stem Auger Boring backfilled with soil cuttings upon completion. None while drilling See Exhibit A-3 for description of field procedures. See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and abbreviations. 33 Hoffman Road E White Bear Lake, Minnesota Hammer Type: Automatic Boring Started: 1/16/201 Drill Rig: # 928 Project No.: MP Driller: CR -6-4 N= 4-4- N= N= N=23 Boring Completed: 1/16/201 Exhibit: A-4

4 PROJECT: Minneapolis Public Schools-Lake St. Redevelopment SITE: SW of Lake and 21st Avenue South SAND (SP), fine to medium, trace gravel, brown, medium dense 8. Offset about ' due to parked truck SILTY SAND (SM), light brown, loose BORING LOG NO. 2 Special School District No. 1 CLIENT: ELEVATION (Ft.) (Ft.) RECOVERY (In.) 8 9 Page 1 of 1 FIELD TEST RESULTS 7--9 N= N= N= N=8 THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. GEO SMART LOG-NO WELL MP14738.GPJ TEMPLATE UPDATE GPJ 2/12/ SAND (SP), fine to medium, trace gravel, brown, medium dense SILTY SAND (SM), trace gravel, brown, medium dense SILTY SAND (SM), brown, loose SAND (SP), fine to medium, trace gravel, brown, medium dense Boring Terminated at 4 Feet Stratification lines are approximate. In-situ, the transition may be gradual. Hollow Stem Auger Boring backfilled with soil cuttings upon completion. 44' while drilling See Exhibit A-3 for description of field procedures. See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and abbreviations. 33 Hoffman Road E White Bear Lake, Minnesota Hammer Type: Automatic Boring Started: 1/16/201 Drill Rig: # 928 Project No.: MP Driller: CR 6-6- N= N= N= N=1 Boring Completed: 1/16/201 Exhibit: A-

5 Subsurface Environmental Investigation Maaco Property Lake Development 200 East Lake May 12, 201 Terracon Project No. MP14738A Prepared for: Minneapolis Public Schools Prepared by: Terracon Consultants, Inc.

APPROXIMATE SITE BOUNDARY DIAGRAM IS FOR GENERAL ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES AERIAL PHOTOGRAPHY PROVIDED BY MICROSOFT BING MAPS Project Manager: JAF Drawn by: AP Checked by:

6 APPROXIMATE SITE BOUNDARY DIAGRAM IS FOR GENERAL ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES AERIAL PHOTOGRAPHY PROVIDED BY MICROSOFT BING MAPS Project Manager: JAF Drawn by: AP Checked by: JAF Approved by: DJW Project No. MP14738 Scale: A AS SHOWN File Name: - Date: 0/08/ th Ave N. Plymouth, MN 441 SAMPLING Minneapolis Public Schools-Lake Development 2019 East Lake Exhibit 2

7 SITE: 200 Lake BORING LOG NO. B-3 0. ASPHALT FILL - POORLY GRADED SAND WITH GRAVEL, light to dark brown, no odor, moist (ft) Page 1 of POORLY GRADED SAND WITH SILT (SP), little gravel, nonplastic, light brown, no odor, moist to wet, soft, trace orange mottling 0.0 THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/ SILT (ML) POORLY GRADED SAND WITH SILT (SP), trace gravel, no odor, wet Boring Terminated at 1 Feet Soil sample collected from to 7 feet at 094. Boring Started: 4/24/201 Boring Completed: 4/24/21 Project No.: MP14738A Exhibit: B

8 SITE: 200 Lake BORING LOG NO. B-4 0. ASPHALT POORLY GRADED SAND WITH SILT (SP), trace gravel, fine grained, dark brown to orange brown, no odor, moist to wet (ft) Page 1 of POORLY GRADED SAND WITH GRAVEL (SP), fine to medium grained, light to dark brown, no odor, moist 0.3 THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/ POORLY GRADED SAND WITH GRAVEL (SP), fine grained, light brown, no odor, moist to wet, 3 inches of silt from 12 to 12. feet SILT (CL-ML), trace clay, light brown, no odor, wet POORLY GRADED GRAVEL (SP), fine grained, light brown, no odor, wet, iron staining at 21 feet Soil sample collected from 20 to 22. feet at Boring Started: 4/24/201 Boring Completed: 4/24/201 Project No.: MP14738A Exhibit: B

9 SITE: 200 Lake BORING LOG NO. B-4 POORLY GRADED GRAVEL (SP), fine grained, light brown, no odor, wet, iron staining at 21 feet (continued) (ft) Page 2 of THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/1 Change to moist at 27 feet Trace gravel at 40 feet Boring Started: 4/24/201 Boring Completed: 4/24/201 Project No.: MP14738A Exhibit: B

10 SITE: 200 Lake POORLY GRADED GRAVEL (SP), fine grained, light brown, no odor, wet, iron staining at 21 feet (continued) 43.0 POORLY GRADED GRAVEL (GP), some sand, light brown, no odor, moist 44.0 BORING LOG NO. B-4 SILTY CLAY (CL-ML), trace sand, trace gravel, semi-plastic, brown to dark gray, no odor, moist to wet, soft (ft) 4 Page 3 of THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/1.0 Boring Terminated at Feet Groundwater sample collected from to feet at Boring Started: 4/24/201 Boring Completed: 4/24/201 Project No.: MP14738A Exhibit: B

11 SITE: 200 Lake 0. ASPHALT POORLY GRADED SAND (SP), trace gravel, light brown, no odor, moist SANDY SILTY CLAY (CL-ML), dark brown, no odor, moist BORING LOG NO. B- (ft) Page 1 of POORLY GRADED SAND (SP), trace to little gravel, fine grained, light brown, no odor, moist 21. THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/ GRAVEL LENS POORLY GRADED SAND (SP), trace gravel, fine grained, light brown, no odor, moist GRAVEL LENS POORLY GRADED SAND (SP), trace gravel, fine grained, light brown, no odor, moist SILT LENS POORLY GRADED SAND (SP), trace gravel, fine grained, light brown, no odor, moist to wet Boring Terminated at 1 Feet Soil sample collected from 8 to feet at Boring Started: 4/24/201 Boring Completed: 4/24/201 Project No.: MP14738A Exhibit: B

12 SITE: 200 Lake ASPHALT 1.0 CLAYEY SAND (SC), dark brown, no odor, moist, soft BORING LOG NO. B-6 (ft) Page 1 of POORLY GRADED SAND (SP), trace gravel, fine to coarse grained, light brown, no odor, moist THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/ POORLY GRADED SAND (SP), trace ash, coarse grained, gray, no odor, moist POORLY GRADED SAND (SP), trace gravel, fine to coarse grained, light brown, no odor, moist SILT WITH SAND (ML), trace sand, fine grained, light brown, no odor, wet POORLY GRADED SAND (SP), fine to medium grained, light brown, no odor, wet Boring Terminated at 1 Feet Soil sample collected from 8 to feet at Boring Started: 4/24/201 Boring Completed: 4/24/201 Project No.: MP14738A Exhibit: B

SITE: 200 Lake CONCRETE 1.0 SILTY SAND (SM), trace gravel, medium brown, no odor, moist BORING LOG NO. B-7 (ft) Page 1 of 1 1.0 2.9 4.

13 SITE: 200 Lake CONCRETE 1.0 SILTY SAND (SM), trace gravel, medium brown, no odor, moist BORING LOG NO. B-7 (ft) Page 1 of POORLY GRADED SAND (SP), trace gravel, fine to medium grained, light brown, no odor, moist 13.3 THIS BORING LOG IS NOT VALID IF SEPARATED FROM ORIGINAL REPORT. ENVIRONMENTAL SMART LOG MP14738A.GPJ TERRACON2012.GDT /21/1 1.0 Boring Terminated at 1 Feet Soil sample collected from 8 to feet at. Boring Started: 4/24/201 Boring Completed: 4/24/201 Project No.: MP14738A Exhibit: B

Typical Subsurface Profile. November 28, 2016

Typical Subsurface Profile. November 28, 2016 November 28, 2016 RSCCD Facility Planning, District Construction and Support Services 2323 N. Broadway, Suite 112, Santa Ana, CA 92706 Attn: Re: Ms. Allison Coburn Facilities Project Manager P: (714) 480-7530