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8.d) 2013 Zavoral GW Monitoring rpt-LBG
LEGGETTE, BRASHEARS & GRAHAM, INC. PROFESSIONAL GROUNDWATER AND ENVIRONMENTAL ENGINEERING SERVICES 8 PINE TREE DRIVE SUITE 250 ST. PAUL, MN 55112 (651)490-1405 FAX (651) 490-1006 www.1b,gweb.com January 15, 2014 Kristina Handt Administrator City of Scandia 14727 209th Street North Scandia, MN 55073 Re: 2013 Groundwater Monitoring Summary Zavoral Aggregate Mining and Reclamation Project City of Scandia, Minnesota Dear Ms. Handt: On behalf of the City of Scandia (City), Leggette, Brashears & Graham, Inc. (LBG) has reviewed the 2013 groundwater monitoring data collected from the Tiller Corporation's (Tiller) Zavoral Aggregate Mining and Reclamation Project (Site) (Figure 1). The purpose of the monitoring is to evaluate groundwater and surface water conditions across the Site and compare these data to current and future mining and reclamation activities, and to ensure the conditions of the February 19, 2013 Conditional Use Permit (CUP) and Annual Operating Permit (AOP) for the Site have been met. LBG was retained by the City to monitor and report on groundwater conditions at the Site. The Washington County Conservation District (WCD) was retained by the City to monitor and report on surface waters. Although LBG's scope focuses on groundwater, both parties have collaborated on the review of both data sets considering the hydraulic connection between groundwater and surface water across the Site. The WCD's report will be submitted by the WCD under separate cover. LBG's report includes the following information: • A brief summary of background information related to groundwater monitoring; • Groundwater monitoring field procedures; • Monitoring results and discussion; • Summary of the findings; and, • Recommendations. CONNECTICUT . OHIO . ILLINOIS . SOUTH DAKOTA . PENNSYLVANIA . FLORIDA . NEW JERSEY . MINNESOTA TEXAS . WISCONSIN . NEW YORK . VERMONT . MICHIGAN . GEORGIA . NORTH DAKOTA Ms. Handt 2 January 15, 2014 BACKGROUND Overview of CUP Groundwater Conditions As part of the CUP Tiller was required to meet the following conditions related to groundwater monitoring,: • Maintain a separation distance of 25 feet for less between the maximum depth of mining and the highest groundwater level on the Site; • Keep daily pumping from the existing Zavoral Site Well production well (Zavoral Site Well) • Pumping cannot exceed a rate 10,000 gallons a day at a maximum pumping rate of 1,200 gallons per minute (gpm), with the annual volume below 1 million gallon per year; • Install and maintain the required on -Site monitoring wells; and, • Revise and implement their Groundwater Quality Protection Plan (GWQPP). Monitoring Well Installation It was predetermined during the CUP review and approval process that four monitoring wells would serve as locations for groundwater level measurements and groundwater sampling at the Site. One monitoring well (MW -1) and two observation wells (PZ -1 and PZ -2) were installed in January 2013. The difference between the "MW" designation and a "PZ" designation is that the former is permitted for groundwater quality sampling in accordance with the Minnesota Department of Health's (MDH) Well Code. The fourth well is the existing private Trails End well (Trails End Well) located just west of the Site (Figure 1). Monitoring well MW -1 is located adjacent to the Zavoral Site Well and hydraulically down gradient (i.e.,"downstream") of the on -Site refueling area (Figure 1). The well was installed on January 9, 2013 by Braun Intertec Corporation (Braun). This well is screened in sand and gravel water table aquifer from 80 to 90 feet below grade (ft bg). This well is used for groundwater sampling and groundwater level measurements. The two observation wells PZ -1 and PZ -2 are located on the southern and northern ends of the Site, respectively. PZ -1 was installed by on January 15, 2013 by Braun and is screened in St. Lawrence Formation from 88 to 103 ft bg. PZ -2 was installed by Traut Wells, Inc. on January 18, 2013 and is screened in the Jordan Sandstone from 100 to 110 ft bg. The purpose of these wells is to collect groundwater level measurements only. Both of these wells are screened in the water table aquifer, which was the first groundwater encountered during drilling. Representatives from Tiller were Site to log the boreholes and observe well installation. The Trails End well does not have a well log, but was measured previously as part of the Draft EIS work. A depth of approximately 139 ft bg was measured. LEGGETTE, BRASHEARS & GRAHAM, INC. Ms. Handt 3 January 15, 2014 The well and boring records for the monitoring wells are included in Attachment 1 and a well construction summary is presented in Table 1. Figure 2 shows a conceptual hydrogeologic cross section and the relative completions depths and geologic formations encountered during well installation. GROUNDWATER MONITORING PROCEDURES As outlined in the GWQPP baseline water levels and groundwater samples were collected at the Site prior to 2013 mining operations beginning. The initial groundwater levels were measured by Tiller with an electronic water level meter immediately after the monitoring and observation wells were installed in January 2013. LBG made regular visits to collect manual water levels and download data from the automated monitoring equipment that was installed in each well in June 2013. Pace Analytical Services, Inc. (Pace) was on Site to collect groundwater samples from MW -1 in September 2013. Groundwater Monitoring Equipment Groundwater level and water quality data are being measured at the Site using In -Situ, Inc. (In - Situ) electronic data loggers (loggers). Dedicated loggers were installed in the four monitoring wells by LBG in June 12, 2013. The objective of loggers is to collect continuous data, which allows for better characterization of groundwater conditions. Three of the four wells in the Site's monitoring network have Level 500 loggers, which are connected to a pressure transducer and temperature probe. This setup allows for water level and temperature data to be measured and recorded. An AquaTroll 200 was installed in MW -1. This measures and records water quality data in addition to water level and temperature data. Water quality is of interest in MW -1 due to its proximity to the Zavoral Site Well and on -Site refueling station, and its central location in the mining area. All instruments were programed to log readings at a 1 hour interval. The data collected at each well are as follows: Groundwater Level and Water Quality Parameter Measurements After the initial January groundwater level measurements completed by Tiller, LBG visited the Site six times (March, June, July, September, November and December 2013). In March, only manual groundwater levels were measured and in the June 2013 LBG installed the loggers. Data were downloaded from the loggers and manual water level measurements were made by LBG during subsequent visits. LEGGETTE, BRASHEARS & GRAHAM, INC. Total Dissolved Pressure Temp. Conductivity Resistivity Salinity Well Solids (TDS) (Water Level) (°F) (AS) (ohm -cm) (ppm) (ppm) MW -1 Yes Yes Yes Yes Yes Yes PZ -1 Yes Yes No No No No PZ -2 Yes Yes No No No No Trails End Yes Yes No No No No Groundwater Level and Water Quality Parameter Measurements After the initial January groundwater level measurements completed by Tiller, LBG visited the Site six times (March, June, July, September, November and December 2013). In March, only manual groundwater levels were measured and in the June 2013 LBG installed the loggers. Data were downloaded from the loggers and manual water level measurements were made by LBG during subsequent visits. LEGGETTE, BRASHEARS & GRAHAM, INC. Ms. Handt 4 January 15, 2014 Groundwater Sampling Pace visited the Site on September 10, 2013 to collect groundwater samples from MW -1. The samples were analyzed by Pace for Diesel Range Organics (DRO), benzene, ethylbenzene, toluene and xylene (Total) (BTEX). The field data sheets and lab results are provided in Attachment 2, and summarized in Table 2. GROUNDWATER MONITORING RESULTS AND DISCUSSION Groundwater Level Measurements Groundwater levels across the Site were relatively stable for 2013 and showed no effects from mining operations and from pumping the Zavoral Site Well. This is shown by the well hydrographs on Figures 3 and 4, and in Attachment 3. Groundwater levels in PZ -2 and MW -1 rose by approximately 0.8 feet from June through September 2013 then began to slowly drop by approximately 0.5 feet between October and December 2013. These trends are consistent with seasonal variations that typically occur with spring recharge followed by drier summer months. The graphs also show that the precipitation events recorded by the WCD at their Bone Lake weather station located approximately miles 4 miles to the west-northwest showed no measurable effects on water levels at the Site. This assumes the events at Bone Lake also occurred on Site. The slight deviation from the established groundwater level trend that occurred in MW -1 in early September was in conjunction with the Pace groundwater sampling event on September 10th. The cause of this deviation is discussed later. Groundwater Flow Direction Groundwater surface contour maps are shown on Figures 5 and 6 for measurements collected on June 12 and September 12, 2013. These dates represent low and high groundwater level conditions, respectively. The maps show the configuration of the groundwater surface is consistent for both circumstances. Groundwater flow across the Site is from the west-northwest to the east-southeast and toward the St. Croix River. Based on these results MW -1 is placed in the optimum location for detecting any potential impacts to groundwater from mine operations. Mining Depth and Groundwater Levels Tiller reported that the deepest the mine advanced in 2013 was at an elevation between 850 and 855 feet above mean seal level (ft-amsl). Based on the groundwater elevations shown on Figures 5 and 6, the estimated separation distance between the bottom of the mine and the groundwater surface in 2013 would have been in the range of approximately 40 to 65 feet. This puts the bottom of the mine well above the 25 foot minimum separation distance specified in the conditions of the CUP. Zavoral Site Well Pumping Tiller pumped the Zavoral Site Well on two occasions summarized below. The water was used to fill the water truck for dust control and for watering planted trees. No impact to water levels LEGGETTE, BRASHEARS & GRAHAM, INC. Ms. Handt 5 January 15, 2014 monitored at the Site occurred as a result of pumping this well. Tthe pumping amounts met the conditions of the CUP for 2013 (Figure 4). Date Amount Pumped(gallons) October 16, 2013 8,000 November 1, 2013 8,000 Total for 2013 16,000 Groundwater Duality (MW -1) The groundwater quality parameters collected in MW -1 using the AquaTroll 200 shows conductivity, TDS and salinity decreased slightly throughout the monitoring period, and resistivity (the inverse of conductivity) increased slightly over the same time period (Attachment 2). Conductivity values ranged from approximately 365 to 420 µS, resistivity 2,380 to 2,735 ohm -cm, TDS 338 to 390 parts per million (ppm), and salinity 250 to 290 ppm. The levels of all parameters remained stable during the mining operations indicating no changes in the groundwater conditions. Note the above range of values for each parameter do not take into consideration the anomaly that occurred beginning on the September 10`h, which is discussed in more detail below. Groundwater Analytical Results (PACE Labs) The groundwater analytical results from MW -1 show DRO and BTEX were not detected at or above the method detection limits. The results are summarized and included in Table2. September 2013 Groundwater Level and Water Duality Parameters Deviation The anomaly in the In Situ data from MW -1 occurred during the monitoring period beginning on September 10, 2013. This date corresponds with the Pace sampling event at MW -1. During the event, Pace had to remove the AquaTroll 200 from MW -1 in order to sample the well. Per communication with Tiller, the AquaTroll 200 was removed from the well for approximately 45 minutes then reinstalled to its original position. The removal and purging of water from the well during sampling resulted in the groundwater quality conditions changing. The data anomaly is shown on the graphs for each parameter, which are included in Attachment 2. LBG contacted In -Situ who confirmed the instrument sensors were logging correctly as indicated by the data trends for each parameter returning to its pre -anomaly trend, albeit slowly. Therefore, the anomaly can be disregarded and there are no data integrity concerns as a result of the significant deviation from the originally established data trends for each groundwater quality parameter in MW -1 SUMMARY The following summarizes the 2013 groundwater monitoring results at the Site as they related to the conditions of the CUP: LEGGETTE, BRASHEARS & GRAHAM, INC. Ms. Handt 6 January 15, 2014 • The GWQPP was revised to address LBG's comments and implemented by Tiller in January 2013; • The monitoring well network at the Site was established in January 2013 with the installation of three monitoring wells (MW -1, PZ -1 and PZ -2) at the locations approved by LBG. The Trails End Well was also included in the network. These wells monitor the water table aquifer; • The four wells are instrumented with data loggers to continuously monitor groundwater levels and temperature, and water quality parameters (MW -1 only); • Groundwater level data shows groundwater flows across the Site from west-northwest to south-southeast toward the St. Croix River; • The deepest mining in 2013 was at elevation of approximately 850 ft amsl, which is approximately 40 to 65 feet above the water table surface; • The Zavoral Site Well was pumped two times at rates and volumes below the maximum allowable limits outlined in CUP conditions, and no impacts to the water table aquifer were observed as a result of pumping; • The groundwater levels and groundwater quality parameters remained relatively stable during 2013, particularly during the mining operations; and, • No impacts to groundwater levels or quality were observed as a result of the 2013 mining operations. RECOMMENDATIONS Based on the evaluation of the 2013 monitoring data all CUP conditions related to the groundwater have been met by Tiller. At this time, LBG recommends the conditions of the CUP and AOP remain in place and the GWQPP continue to be followed. Sincerely, LEGGETTE, BRASHEARS & GRAHAM, INC Roscoe F. Sopiwnik, GISP Environmental Scientist 11 t David S. Hume, PG Senior Associate DSH: S:\Tech\Scandia Aggregate\Zavoral\Monitoring Reports\2013\2013 Monitoring Data Review (final).doc LEGGETTE, BRASHEARS & GRAHAM, INC. TABLES LEGGETTE, BRASHEARS & GRAHAM, INC. TABLE 1 MONITORING AND OBSERVATION WELL CONSTRUCTION SUMMARY ZAVORAL AGGREGATE MINING AND RECLAMATION PROJECT SCANDIA, MN AMSL: above mean sea level BG: below grade Water level collected 6/12/2013 SATech\Scandia Aggregate\Zavoral\Monitoring Reports\2013\ Table 1 - Well Construction Summary (final), Fluid Levels Page 1 of 1 LEGGETTE, BRASHEARS & GRAHAM, INC. Top of Top of Depth to Grade Total Depth Screened Groundwate Well Casing Total Depth Screen Water at Install Date Elevation Elevation Interval r Elevation Number Elevation (feet BG) Elevation Installation (feet AMSL) (feet AMSL) (feet BG) (feet AMSL) (feet AMSL) (feet AMSL) (feet BG) MW -1 9 -Jan -13 864.43 867.43 90.00 774.43 784.43 80-90 85.00 779.43 PZ -1 15 -Jan -19 854.94 857.94 103.00 751.94 766.94 88-103 89.00 765.94 PZ -2 18 -Jan -13 889.89 892.89 110.00 779.89 789.89 100-110 91.00 798.89 Trails End Unknown 929.38 932.38 -139 799.38 Unknown Unknown 115.75* 813.63 AMSL: above mean sea level BG: below grade Water level collected 6/12/2013 SATech\Scandia Aggregate\Zavoral\Monitoring Reports\2013\ Table 1 - Well Construction Summary (final), Fluid Levels Page 1 of 1 LEGGETTE, BRASHEARS & GRAHAM, INC. TABLE 2 ZAVORAL AGGREGATE MINING AND RECLAMATION PROJECT SCANDIA, MN MW -1 GROUNDWATER ANALYTICAL RESULTS 2013 Sample Date Diesel Range Organics (DRO) Benzene Ethylbenzene Toluene Xylene (Total) Units mg/L ug/L ug/L ug/L ug/L Method Detection Limit 0.10 1.0 1.0 1.0 3.0 10 -Sep -13 <0.10 <1.0 <1.0 <1.0 <3.0 mg/L: Milligrams per Liter ug/L: Micrograms per Liter S:\Tech\Scandia Aggregate\Zavoral\Monitoring Reports\2013\ Table 2 - MW -1 Pace Analytical Results (final), Fluid Levels Page 1 of 1 LF,GGETTE, BRASHEARS & GRAHAM, INC. FIGURES LEGGETTE, BRASHEARS & GRAHAM, INC. C 1 9Th St 0 0 Zavoral Monitori Piezometer <6>Surface Water Monitoring Location Property Boundary Project Mining Limit Reclamation Only Easement Area 9y Minnesota Wisconsin z Site m Washington { QI County Source: Well Locations Located by LBG. Surface Water Monitoring Locations from MNWCD. Property boundaries from Tiller Corporation, Inc. Prepared By: CITY OF SCANDIA ° LEGGETTE, BRASHEARS & GRAHAM, INC. N L Professional Groundwater and SCANDIA, MINNESOTA B Environmental Engineering Services N G 8 Pine Tree Drive, Suite 250 ZAVORAL MINING AND RECLAMATION PROJECT SITE FEATURES cD St. Paul, Minnesota 55112 (651)470-1405 FILE: g3zavora101h.MXD DATE: 1/15/2014 FIGURE: 1 650 625 600 0 600 Feet Open Hole 245-648 feet below grade Note: Geologic contacts dashed where inferred. Vertical Exageration = 6x Crystal PZ42 Springs sw 97 Trails Zavoral Zavoral' End A Site Well Creek MW -1 sw A' 95 z CD 209Th St N p4 PZ_1 < Q) 9��2 c7 A' East 950 925 900 875 850 0 Q 825 Z N 800 m 775 O 750 0 725 W U U) 700 I 675 650 625 600 Screened Interval T Prepared LEGGETTE, BRASHEARS &GRAHAM, INC. CITY OF SCANDIA Open Hole L Professional Groundwater and SCANDIA, MINNESOTA 9/12/2013 Water Level Representative of V Environmental Engineering Services the 1 hest Elevation Measured tube the s Pine Tree Drive, Suite 250 CONCEPTUAL HYDROGEOLOGIC CROSS SECTION A -A' Highest g St. Paul Minnesota 55112 2013 Monitoring Period (651)490-1405 FILE: g3zavora101i.MXD DATE: 1/15/2014 FIGURE: 2 A West W 950 H 925 -r '7 N 00— o N CN �j 900 Quaternary 00 Sands and Gravels Conceptual Extent �-oQ 875 of Excavation O _ P-rairie:du.Chi&rGroup N w850 o :Jordan Saridstorie .:.:^• .... ._,..:--.-•--�.- 850-855 ft Lowest mining Z 825 -. �: �.. --.-: ' - = - 2013: '.:::::•::.: ;:::':: '.'; .:::: :..: •.: ;:: ;'. -'.';. :::. :•::'•:: _..::o elevation in 2013 •' o m 2013 ::.::: . :.::::•:•.;:: ....• - m 800 Quaternary 775'.. _ - _.;, ;r 2013 :':'': '•. - Sands and Gravels _' _ - - -_zo13 St. Lawrence Formation > 750 St. Lawrence Formation W 725 Mezomanie Formation of 700 ------ - - - - - - - - - - - - Tunnel City Group 675 - - - ---- - - - - - - - - - - - - - - - - - - -- 650 625 600 0 600 Feet Open Hole 245-648 feet below grade Note: Geologic contacts dashed where inferred. Vertical Exageration = 6x Crystal PZ42 Springs sw 97 Trails Zavoral Zavoral' End A Site Well Creek MW -1 sw A' 95 z CD 209Th St N p4 PZ_1 < Q) 9��2 c7 A' East 950 925 900 875 850 0 Q 825 Z N 800 m 775 O 750 0 725 W U U) 700 I 675 650 625 600 Screened Interval T Prepared LEGGETTE, BRASHEARS &GRAHAM, INC. CITY OF SCANDIA Open Hole L Professional Groundwater and SCANDIA, MINNESOTA 9/12/2013 Water Level Representative of V Environmental Engineering Services the 1 hest Elevation Measured tube the s Pine Tree Drive, Suite 250 CONCEPTUAL HYDROGEOLOGIC CROSS SECTION A -A' Highest g St. Paul Minnesota 55112 2013 Monitoring Period (651)490-1405 FILE: g3zavora101i.MXD DATE: 1/15/2014 FIGURE: 2 aDv > 840 0) M QJ (A 830 C M OJ E 820 GJ O M 810 a+ r- 2 C 800 M GJ W 790 G1 v cp 780 N OJ 770 H i G1 m 760 750 Figure 3 MW -1 Monitoring Well and PZ -1, PZ -2, and Trails End Observation Wells Groundwater Elevation (ft amsl) vs Time Zavoral Aggregate Mining and Reclamation Project Scandia, Minnesota Pumped 8,000 Gallons from Site Well on October 16th and November 1st Active Mining Operations Began -- November 1st ---- * MW -1 Transducer MW -1 Manuals • PZ -1 (South) Transducer PZ -1 (south) Manuals * PZ -2 (north) Transducer PZ -2 (north) Manuals * Trails end Transducer •Trails End Manuals O 1 1 1 1 1 1 1 1 1 O O O 1 000 •00 •00 •00 •00 •00 •00 •00 •00 •00 000 000 000 00 Date S:\Tech\Scandia Aggregate\Zavoral\Hydrogeo\ Zavoral Water Levels LEGGETTE, BRASHEARS & GRAHAM, INC. 785.00 784.50 784.00 N E 783.50 M ++ 4 r— 783.00 O -W M N 782.50 W L M 782.00 c G 781.50 /L^ V 781.00 780.50 780.00 Figure 4 MW -1 Groundwater Elevation (ft amsl) and Precipitation (inches) vs Time Zavoral Mining and Reclamation Project Scandia, MN Groundwater Elevation (ft amsl) Precipitation (inches) --------------- Pumped 8,000 Gallons from Site Well on October 16th and Active Mining November 1st Operations Began. .............................. November 1st i Precipitation Gauge Removed for Winter Season ...... ................... ..--r------------- 0 i� 01 ASO O 01�0. ;0 1 O. 01 O. 00 00 00 q O Date 0.6 0.5 0.4 G1 s v G C 0.3 O fC 2- 0.2 0.2 a 0.1 5:\Tech\Scandia Aggregate\Zavoral\Hydrogeo\ MW -1, PZ.I, 2, 3 Groundwater Quality Parameters LEGGETTE, BRASHEARS & GRAHAM, INC. i 01A0. O O 5:\Tech\Scandia Aggregate\Zavoral\Hydrogeo\ MW -1, PZ.I, 2, 3 Groundwater Quality Parameters LEGGETTE, BRASHEARS & GRAHAM, INC. Trails 816.63 ED 766137 N 0 Z a 0 400 rt } ,r Feet - rj ■ Zavoral Site Well Monitoring Well 0 Piezometer Esw Surface Water Monitoring Location d — Groundwater Elevation Contour (ft amsl) dashed where inferred N M Groundwater Flow Direction N E * Not Used in Contouring d Source: LIDAR DEM from Minnesota Geospatial Information Office. Well Locations Located by LBG. Surface Water Monitoring Locations from MNWCD. Prepared Ey: CITY OF SCANDIA LEGGETTE, BRASHEARS & GRAHAM, INC. SCANDIA, MINNESOTA N Professional Groundwater and d BEnvironmental Engineering Services GROUNDWATER ELEVATIONS (LOW PERIOD) G ~ 8 Pine Tree Drive., Suite 250 N JUNE 12, 2013 St. Paul, Minnesota 55112 0 (651)470-1405 FILE: g3zavoral01e.MXD DATE: 1/15/2014 FIGURE: 5 ., Is 1! � " Ip ' , ai W, "� . � ! � 1 t '`Y fir, � 4 � •IQ>� �• > �' 1 3 i J, �k 95 , A 0 400 Feet ® Site Well Monitoring Well A Piezometer <9>Surface Water Monitoring Location — Groundwater Elevation Contour (ft amsl) dashed where inferred Groundwater Flow Direction * Not Used in Contouring F:: r� I� Source: LIDAR DEM from Minnesota Geospatial Information Office. Well Locations Located by LBG. Surface Water Monitoring Locations from MNWCD. 0 Prepared Ey: LEGGETTE, BRASHEARS & GRAHAM, INC. CITY OF SCANDIA N SCANDIA, MINNESOTA Professional Groundwater and d BG F-8 Environmental Engineering Services GROUNDWATER ELEVATIONS (HIGH PERIOD) N Pine Tree Drive., Suite 250 SEPTEMBER 12, 2013 O St. Paul, Minnesota 55112 iri (651)470-1405 FILE: g3zavora101f.MXD DATE: 1/15/2014 FIGURE: 6 ATTACHMENT 1 WELL AND BORING RECORDS LEGGETTE, BRASHEARS & GRAHAM, INC. Well Log Report - 00772842 M w 4, Minnesota Unt ue Weff No. 7721 County Washington Quad Sandia Quad ID 134D Page 1 of 1 MINNESOTA DEPARTMENT OF HEALTH Entry Date WELL AND Update Date 05/1612013 BORING RECORD Received Date 02/2512013 Minnesota Statutes Chapter 1031 Well Name MW -1 Well Depth Depth Completed Date Well Completed Township Range Dir Section Subsections Elevation 864 ft. 32 19 W 18 CDCABB Elevation Method UDAR 1m DEM (MNDNR) 91 ft 90 IL 01/09/2013 Drilling Method Auger (non-specified) Well Address IN REMARKS SCANDIA MN 55073 Drillin B Fluid Well Flydrofrectured? ❑Yes ®No From Ft to R. Use Monitorwell Casing Type Plastic Joint Threaded Drive Shoe? ❑ Yes 0 Geological Material Color HardnessFromTo CLAYEY SAND, DENSE BROWN 0 37 No AbovelBelow ft Casing Diameter Weight Hole Diameter 2 in. to 80 ft. lbs./ft. 8 in. to 90 ft. SANDY SILT, MED. DENSE BROWN' 3783 SAND, MED. DENSE BROWN 83 88 CLAYED SAND W/GRAVEL, MED. DENSE BROWN 88 91 Open Hole from ft. to ft. Screen YES Make MONOFLEX Type plastic Diameter SloVGauze Length Set Between 2 10 10 80 ft. and 90 ft. Static Water Level 85 ft. from Land surface Date Measured 01/09/2013 PUMPING LEVEL (below land surface) ft. after hrs. pumping g.p.m. Well Head Completion Pilless adapter manufacturer Model ® Casing Protection Y ® 12 in. above grade ❑ At -grade (Environmental Wells and Borings ONLY) REMARKS SE QUAD OF CO. HWYS. 95 & 97, SCANDIA, 55073 Grouting Information Well Grouted? ® Yes ❑ No Grout Material: Bentonite from 4 to 74 ft. 2.5 bags Located by: Minnesota Department of Method: Digitization (Screen) -Map Health (1:24,000) Grout Material: CONCRETE from to 4 ft. 4 bags Unique Number Verification: Info/GPS Input Date: 02/13/2013 from data source Nearest Known Source of Contamination System: U7M- Nad83, Zone15, Meters X: 518263 Y: 5011261 _feet direction _type Well disinfected upon completion? ❑ Yes ® No Pump ❑ Not Installed Date Installed Manufacturer's name Model number_ HP - Volts Length of drop Pie ft CaUSCIN Q.D.m Type Material Abandoned Wells Does property have any not in use and not sealed well(s)? ❑ as 1:1 No Variance Was a variance ranted from the MDH for this well? ❑Yes © No Well Contractor Certification First Bedrock Aquifer Quat. Buried Unconf. Aquife Braun Intertac Coro. 1323CM LEANS. Last Strat pebbly sand/silUday-brown Depth to Bedrock tL License Business Name Lic. Or Reg. No. Name of Driller County Well Index Online Report 772842 Printed 5/16/2013 HE -01205.07 http://mdh-agua.health.state.mn.us/cwi/well log.asp?wellid=0000772842 5/16/2013 Well Log Report - 00772850 P4 - Minnesota Utugue Well No. County Washington 712850 Quad Scandia QuedlD 134D Page 1 of 1 MINNESOTA DEPARTMENT OF HEALTH Entry Date 04/2412013 WELL AND Update Data 05/1612013 BORING RECORD Received Date 0212512013 Minna ata Statutas Chanter 1091 Well Name P-1 Well Depth Depth Completed Data Well Completed Township Range Dir Section Subsections Elevation 854 ft. 32 19 W 19 BABDAA Elevation Method LiDAR 1m DEM (MNDNR) 103 fL 103 ft 01/1512013 Drilling Method Multiple methods used Well Address IN REMARKS SCANDIA MN 55073 Drilling Fluid — Well Hydrofractured? ❑ Yes 2 No From Ft. to Ft. Use Environ. Bore Hole Casing Type Steel (black or low carbon) Joint Threaded Drive Shoe? ❑ Geological Material Color Hardness From To CLAYEY SAND, DENSE BROWN 0 18 SAND W/GRAVEL, MED. DENSE BROWN 18 79 LIMESTONE YEUBRN HARD 79 100 es ® No Above/Below fL Casing Diameter Weight Hole Diameter SHALEY LAYERS, V. DENSE DK. GRY 100 101 LIMESTONE YEUBRN HARD 101 103 2 in. to 88 ft. 3.75 lbs./ft. 8 in. to 80 ft. Open Hole from ft to It. Screen YES Make MONOFLEX Type plastic Diameter Slot/Gauze Length Set Between 2 10 15 88 ft. and 103 ft. 5 - cA Static Water Level 89 8. from Land surface Date Measured 01115/2013 PUMPING LEVEL (below land surface) ft. after hrs. pumping gi.p.m. Well Head Completion Pitiess adapter manufacturer Model © Casing Protection Y © 12 in. above grade ❑ At rade Environmental Wells and Borings ONLY) NO REMARKS Grouting Information Well Grouted? ® Yes ❑ No Grout Material: Neat Cement from 4 to 66 ft. 2.5 bags Located by: Minnesota Deparbnent of Method: Digitization (Screen) - Map Grout Material: Bentonite from 66 to 84 ft. 5 bags Health (1:24,000) Grout Material: CONCRETE from to 4 ft. 3 bags Unique Number Verification: Info/GPS Input Date: 02/13/2013 from data source Nearest Known Source of Contamination _feet _direction _type m: UTM- Nad83, Zone15, Meters X: 518341 Y: 5010954 System: Well disinfected upon completion? 11 Yes © No Pump ❑ Not Installed Date Installed Manufacturer's name Model number_ HP Volts _ Len th of droKi a ft C ap ..m T e Material Abandoned Wells Does property have any not in use and not sealed well(s)? ❑ Yes ❑ No Variance Was a variance granted from the MDH for this well? ❑ Yes ® No Well Contractor Certification First Bedrock St.Lawrence Formation Aquifer St.Lawrence Braun Intaitec Corp. 1323 MCLEAN.S• Last Strat St.Lawrence Formation Depth to Bedrock 79 fL License Business Name Uc. Or Reg. No. Name of Driller County Well Index Online Report 772850 Printed 5/16/2013 HE-01205-07-07 http://mdh-agua.health.state.mn.us/ewi/well_log.asp?wellid=0000772850 5/16/2013 Well Log Report - 00796263 Minnesota Uri ue We#. No. 796263 County Washington Quad Sandia Quad ID 134D Page 1 of 1 MINNESOTA DEPARTMENT OF HEALTH Entry Date 04/2412013 WELL AND Update Date 05/1612013 BORING RECORD Received Date 0212512013 Minnesota Statutes Chapter 1031 Well Name ZAVORAL, DR. JAMES Well Depth Depth Completed Date Well Completed Township Range Dir Section Subsections Elevation 891 ft. 110 ft. 11011t. 01/1812013 LiDAR 1m 32 19 W 18 CBDDBD Elevation Method DEM (MNDNR) I Drilling Method Vibracore/rotasonic Well Address Drilling Fluid 9 Well Hydrofractured? ❑ Yes 2 No 95 & 97 HY Water From Ft to Ft. SCANDIA MN Use Piezometer Casing Type Steel (black or low carbon) Joint Threaded Drive Shoe? ❑ Geological Material Color Hardness From To TOP SOIL BROWN SOFT 0 1 es © No AbovelBelow ft. SAND & GRAVEL BROWN SOFT 1 9 Casing Diameter Weight Hole Diameter BOULDER/SAND BROWN MEDIUM 9 21 LIMESTONE TAN HARD 21 33 2 in. to 100 ft. 2.65 lbs./ft. 7 in. to 110 ft. SANDSTONE TAN HARD 33' 110 Onen Hole from ft to ft Screen YES Make JOHNSON Type stainless steel Diameter Slot/Gauze Length Set Between 2 10 10 100 ft. and 110 ft. Static Water Level 91 ft. from Land surface Date Measured 01/1812013 PUMPING LEVEL (below land surface) ft. after his. pumping g.p.m. Well Head Completion Pitless adapter manufacturer Model . ® Casing Protecion Y 1:112 in. above grade ❑ At rade Environmental Wells and Borings ONLY REMARKS Grouting Information Well Grouted? R Yes 1:1No GROUT- FINE SAND 88-90' Grout Material: Bentonite from 86 to 88 ft. 1 Locatedby � : Minnesota Geological Sury Method: Digitization (Screen) -Map Grout Material: Other from 88 to 90 ft. 1 (1:24,000) Unique Number Verification: Indo/GPS Grout Material: Neat Cement from to 86 ft. 20 bags from data source Input Date: 05/14/2013 Nearest Known Source of Contamination System: UTM - Nad83, Zone 15 Meters X: 518079 Y: 5011532 feet _direction _type Well disinfected upon completion? ❑ Yes ❑ No Pump ❑ Nat Installed Date Installed Manufacturer's name Model number_ - HP Volts Lenolh of drop Pipe ft Caoacltv ax.m Tyre Material Abandoned Wells Does property have any not in use and not sealed well(s)? ❑ ® Yes No Variance Was a variance granted from the MDH for this well? ❑ Yes ® No Well Contractor Certification First Bedrock Prairie Du Chien/Oneota Fm Aquifer Jordan Mark J Traut Wells. Inc. 1404 STEBBINS.N. Last Strat Jordan Sandstone Depth to Bedrock 21 ft. License Business Name Lic. Or Reg. No. Name of Driller County Well Index Online Report 796263 Printed 5/16/2013 !] HE -01205.07 http://mdh-agua.health.state.nm.us/cwi/well log.asp?wellid=0000796263 5/16/2013 Well Log Report - 00263147 Minnesota Uni m Well No. ` c -q f C -S E" C°""t' Washington 263147 Quad Scandia Quad ID 134D Page 1 of 1 MINNESOTA DEPARTMENT OF HEALTH Entry Date 06/10/2009 WELL AND Update Date 01/1612013 BORING RECORD Received Date Minnesota Statutes Chanter 1031 Well Name TRAIL'S END BAR & GRILL 1 Well Depth Depth Completed Date Well Completed Township Range Dir Section Subsections Elevation 933 ft. 7.5 minute 0 ft 0 ft. 0 Drilling Method — 32 19 W 18 CCBBCA Elevation Method topographic map (+/- 5 feet) Well Address 16297 SCANDIA TR N SCANDIA MN 55073 Drilling Fluid — Well Hydrofractured? ❑ Yes ❑ No From Ft. to Ft. Use Public Su I iron -comm: transient PWS ID 5820505 Source S01 Casing Type Joint No Information Drive Shoe? ❑ Yes ❑ Geological Material Color Hardness From To No AbovelBelow ft. Casing Diameter Weight Hole Diameter Open Hole from ft. to ft. Screen Make Type Diameter Slat/Gauze Length Set Between Static Water Level ft. from Date Measured PUMPING LEVEL (below land surface) ft. atter hrs. pumping g.p.m. Well Head Completion Pifiess adapter manufacturer Model ❑ Casing Protection 1-112 in. above grade ❑ At -grade (Environmental Wells and Borings ONLY) REMARKSGrouting RESTAURANT BURNT DOWN WELL STILL THERE -PAT SARAFOLEAN-MDH. Information Well Grouted? 1:1 Yes ❑ No NO WELL RECORD. Located by: Method: GPS SA Off (averaged) Unique Number Verification: Info/GPS from data Input Date: 06/10/2009 source System: UTM- Nad83, Zone15, Meters X: 517783 Y: 5011413 Nearest Known Source of Contamination 0 feet _direction _type Well disinfected upon completion? ❑ Yes ❑ No Pump ❑ Not Installed Date Installed Manufacturer's name Model number_ HP _ Volts Length of drop Pie ft. Capacity .m Type Material Abandoned Wells Does property have any not in use and not sealed well(s)? El as ❑ No Variance Was a variance granted from the MDH for this well? ❑ Yes ❑ Na Well Contractor Certification First Bedrock Aquifer Last Strat Depth to Bedrock ft. License Business Name Lic. Or Reg. No. Name of Driller County Well Index Online Report 263147 Printed 1/17/2 HE -01205-07-07 http://mdh-agua.health.state.mti.us/ewi/well_log.asp?wellid=0000263147 1/17/2014 Well Log Report - 00210498 Minnesota Unique Wel! No. f r County Washington 210498 Quad Scandia 880 ft. Quad ID 134D MINNESOTA DEPARTMENT OF HEALTH Entry Date WELL AND Update Date BORING RECORD Received Date Minnesota Statutes Chamar 1031 Page 1 of 1 03/01/1989 08121!2012 Well Name BARTON CONSTRUCTION CO. Well Depth Depth Completed Date Well Completed Township Range Dir Section Subsections Elevation 880 ft. 648 ft. 648 ft. 06/1811969 7.5 minute Drilling Method Cable Tool 32 19 W 18 CDBDDA Elevation Method topographic map (4 5 feet) Well Address Drilling Fluid Well Hydrofractured? ❑ Yes ❑ No CANDIA MIN - From R. to Ft. Use Commercial Casing Type Steel (black or low carbon) Joint No Information Drive Shoe? ❑ Geological Material Color Hardness From To DRIFT 0 110 es ❑ No AbovelBelow ft. SANDSTONE BROWN 110 155 SHALEY SANDSTONE GREEN 155 250 Casing Diameter Weight Hole Diameter GREY SHALE - SANDSTONE 250 280 20 in. to 179 fL lbs'/ft GREEN SHALE - SANDSTONE 280 330 SHALE GRAY 330 360 16 in. to 245 ft. lbs./ft. SHALEY SANDSTONE GREEN 360 425 ODenHole from 245 ft. to 648 ft. SHALE GREEN 425 435 COARSE SANDSTONE 435 500 Screen NO Make Type STICKY SHALE SANDSTONE BROWN 500 505 505 515 Diameter Slot/Gauze Length Set Between SANDSTONE WHITE 515 535 SANDSTONE 535 570 SANDSTONE 570 590 RED SHALE RED 590 595 SANDSTONE 595 648 Static Water Level 91.3 ft. from Land surface Date Measured 06/18/1969 PUMPING LEVEL (below land surface) ft, after his. Nmping p.p.m. Well Head Completion Pitless adapter manufacturer Model ❑ Casing Protection. ❑ 12 in. above grade ❑ At -grade (Environmental Wells and Borings ONLY) NO REMARKS Grouting Information Well Grouted? ❑ Yes ❑ No Located by: Minnesota Geological Method: Digitized - scale 1:24,000 or larger Survey (Digitizing Table) Unique Number Input Date: 01/01/1990 Nearest Known Source of Contamination Verification: Information from owner _feet _direction _type System: UTM - Nad83, Zone15, Meters X: 518299 Y: 5011351 Well disinfected upon completion? ❑ Yes ❑ No Pump ❑ Not Installed Date Installed Manufacturer's name Model number HPO Volts Length of drop Pipe ft. Ca cit .m Type Material Abandoned Wells Dors property have any not in use and not sealed well(s)? ❑ ❑ Yes No Variance Was a variance ranted from the MDH for this well? -1 Yes ❑ No Well Contractor Certification First Bedrock Jordan Sandstone Aquifer Franconia-MlSimon Tristate Wells. 27118 BENEKE, R. Last Strat Mt.Slmon Sandstone Depth to Bedrock 110 ft. License Business Name Lic. Or Reg. No. Name of Driller County Well Index Online Report 210498 Printed 1/17/2014 HE -01205-07 http://mdh-agua.health.state.mn.us/cwi/well_log.asp?wellid=0000210498 1/17/2014 BRAUN INTERTEC Unique Well Number 772842 MONITORING WELL FIELD DATA SHEET Client Tiller Corporation Project Number SP -12-07375 Well Number MW -1 Well Location Scandla, Minnesota B.M. Location and Elevation (±0.01') Crew SM, BP Geologist Stick up (±0.1') 3.1 Top of Riser Pipe Elevation 867.43 (±0.01' Without Cap) 2106 Ground Surface Elevation (±0.1') 864.63 Depth to Bottom of Surface Seal 4' Approximate Water Level Proportions: Bentonite X Before Installation RISER PIPE: Approximate Depth to First 85' Water Encountered in Diameter Drilling Total Length Depth to Top of Seal 78 Depth to Bottom of Seal 77 Depth to Top of Screen 80 Depth to Bottom of Screen 90 Depth to Bottom of Boring 90 METHOD OF ADVANCE: HSA X I.D. 4 1/4" Casing 1. D. Tricone O.D. FAWPPS\ACADL\WELLS\field data sheets\monitoring well data sheets.dwg,AG Location Zavoral Pit Date of installation 01/09/2013 PROTECTIVE COVER Type 6" Steel Length 7' Lock No. 2106 Concrete Surface Seal Yes L No L Type of Grout Material Bentonite Grout Amount of Material Used (lb.) 250 lbs. Proportions: Bentonite X Cement RISER PIPE: Type PVC Diameter 2" Total Length 83' Sections Used 9 Couplings N/A Cap Yes L NoLEI Type of Seal Material Bentonite Chips Amount of Material Used (lb.) 50 lbs. Type of Filter Material #40 Filter Sand Amount of Material Used (lb.) 300 lbs. SCREEN: Type PVC Slot Size .010 Length 10' Diameter 2" Plug/Point REMARKS: COMPLETED BY: Scott Mclean BRAUN INTERTEC Unique Well Number 772850 MONITORING WELL FIELD DATA SHEET Client Tiller Corporation Project Number SP -12-07375 Well Number P-1 Well Location Scandia, Minnesota B.M. Location and Elevation (±0.01') Crew SM, BP Geologist Stick up (±0.1') 3' Top of Riser Pipe Elevation 857.94 (±0.01' Without Cap) Ground Surface Elevation (±0.1') 855.73 Depth to Bottom of Surface Seal 4' Approximate Water Level No L Before Installation Approximate Depth to First 89' Water Encountered in Cement Drilling (100 lbs) Depth to Top of Seal 77' Depth to Bottom of Seal 79' Depth to Top of Screen 88' Depth to Bottom of Screen 103' Depth to Bottom of Boring 103' METHOD OF ADVANCE: HSA X I.D. 41/4" Casing 1. D. Tricone X O.D. 4" F:WPPS\ACADL\WELLS\field data sheets\monitoring well data sheets.dwg,AG Location Zavoral Pit Date of installation 01/15/2013 PROTECTIVE COVER Type 6" Steel Length 7' Lock No. 2106 Concrete Surface Seal YesL No L Type of Grout Material Bentonite Grout Amount of Material Used (lb.) 600 lbs Proportions: Bentonite X Cement X (100 lbs) (500 lbs) RISER PIPE: Type Black Iron Diameter 2" Total Length 91 Sections Used 9 Couplings 9 Cap YesL No L Type of Seal Material Bentonite Chips Amount of Material Used (lb.) 50 lbs Type of Filter Material #40 Filter Sand Amount of Material Used (lb.) 150 lbs SCREEN: Type PVC Slot Size .010 Length 15' Diameter 2" Plug/Point REMARKS: COMPLETED BY: Scott Mclean TRAUT t L_ Companies Project Name Zavoral Pit # 744 Location HWY 95 & 97, Sandia MN Engineer/Client Tiller Corp. Date Completed 1/18/2013 Well\Boring Depth 110' Drilling Method Roto Sonic Drilling Fluid Water Borehole Diameter 7" Static Water Level 91' Screen Material Stainless Steel Screen Length 10' Casing Material LC Steel Casing Length 100' Casing Diameter 2" Filter Pack Used Red Flint #40 Filter Pack Interval 10' Grout Material Neat Cement Grouting Interval 86' Grouting Method Tremie Pipe Protective Pipe (if Used) 6" Pro Top Visual Geology Classifation: Well Construction Job Number Well/Boring Name Unique Number Driller Nate S Material Color Hardness From To Top Soil Brown S 0 1 Sand & Gravel Brown S 1 9 Boulder / Sand Brown M 9 21 Limestone Tan H 21 33 Sanstone Tan H 33 110 2' Bentonite 2' Fine Sand I Filter Pack: Screen: 10' 10' Red Flint #40 Stainless Steel Well/Boring Depth 110' 141 28th Ave South Waite Park MN 56387 Phone: (320) 251-5090 Fax: (320)259-0594 drill@trautwells.com 809198 Piezometer 796263 Assistant Drew & Andy AS -BUILT DIAGRAM Above Grade Casing: 100' LC Steel Casing Diameter 2" Grout: 86' Neat Cement 2' Bentonite 2' Fine Sand I Filter Pack: Screen: 10' 10' Red Flint #40 Stainless Steel Well/Boring Depth 110' Borehole Diameter - 7" ATTACHMENT 2 PACE ANALYICAL REPORT LEGGETTE, BRASHEARS & GRAHAM, INC. ace Analytical o Feld Services Division September 16, 2013 Mr. Mike Caron Barton Sand and Gravel P.O. Box 1480 Maple Grove, MN 55311-6480 Pace Analytical Services, Inc. 1700 Elm Street, Suite 200 Minneapolis, MN 55414 Phone. 612.607.1700 Fax- 612.607.6444 www.pacelabs.com RE: Pace Project No. 13-0754 Client Project ID: Barton Sand and Gravel- Scandia Pit 744 ( Zavoral ) Dear Mr. Caron: Enclosed are the analytical results for the sample(s) received by the laboratory on September 10, 2013 for the annual sampling and analysis at the Zavoral site ( Pit 744 ). DRO results were ND at MW -1 (Well I.D. # 772842 ). Results reported herein conform to the most current NELAC standards, where applicable, unless otherwise narrated in the body of the report. If you have any questions concerning this report please feel free to contact me. Sincerely, David Anderson Project Manager 612-607-6377 State of Minnesota Laboratory No. 027-053-137 aceAnalytfca!® f ww#4woalah5Lcom September 16, 2013 Mr. David Anderson Pace Analytical Services, Inc. 1700 Elm Street Suite 200 Minneapolis, MN 55414 RE: Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (612)607-1700 Dear Mr. Anderson: Enclosed are the analytical results for sample(s) received by the laboratory on September 10, 2013. The results relate only to the samples included in this report. Results reported herein conform to the most current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Nicole Benjamin nicole.benjamin@pacelabs.com Project Manager Enclosures W REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 1 of 11 aceAnalytical "W..pacelabacvm Pace Analytical Services, Inc. 17o0 Elm Street - Suite 200 Minneapolis, MN 55414 (612)607-1700 Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 Minnesota Certification IDs 1700 Elm Street SE Suite 200, Minneapolis, MN 55414 A21LA Certification #: 2926.01 Alaska Certification #: UST -078 Alaska Certification *MN00064 Arizona Certification #: AZ -0014 Arkansas Certification #: 88-0680 California Certification #: 011 55C Colorado Certification #Pace Connecticut Certification #: PH -0256 EPA Region 8 Certification #: Pace FloridalNELAP Certification #: E87605 Georgia Certification #: 959 Hawaii Certification #Pace Idaho Certification #: MN00064 Illinois Certification #: 200011 Kansas Certification #: E-10167 Louisiana Certification #: 03086 Louisiana Certification #: LA080009 Maine Certification M 2007029 Maryland Certification #: 322 Michigan DEQ Certification #: 9909 Minnesota Certification #: 027-053-137 CERTIFICATIONS Mississippi Certification #: Pace Montana Certification #: MT CERT0092 Nebraska Certification #: Pace Nevada Certification M MN00064 New Jersey Certification #: MN -002 New York Certification M 11647 North Carolina Certification #: 530 North Dakota Certification #: R-036 Ohio VAP Certification M CL101 Oklahoma Certification #: 9507 Oregon Certification #: MN200001 Oregon Certification #: MN300001 Pennsylvania Certification #: 68-00563 Puerto Rico Certification Tennessee Certification #: 02818 Texas Certification #: T104704192 Utah Certification #: MN00064 VirginialDCLS Certification #: 002521 VirginialVELAP Certification #: 460163 Washington Certification #: C754 West Virginia Certification #: 382 Wisconsin Certification M 999407970 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 2 of 11 aceAnalytical o www,pacslabs.com Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 Lab ID Sample ID 10241461001 MW -1 (772842) EUd,1 R41--111J,IJ)F. 1 Matrix Date Collected Date Received Water 09/10/13 09:45 09/10/13 11:46 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (612)607-1700 Page 3 of 11 aceAnalytical " WNW..9scub6s.corn SAMPLE ANALYTE COUNT Project: 13-4754 Barton Sand and Gravel Pace Project No.: 14241461 Pace Analytical Services, I nc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (612)607-1700 Analytes Lab ID Sample ID Method Analysts Reported 10241461001 MW -1 (772842) WI MOD DRO JRH 2 EPA 8260 SH2 7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 4 of 11 aceAnalXical NwWpacel tkco a ANALYTICAL RESULTS Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (612)607-1700 Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 Sample: MW -1 (772842) Lab ID: 10241461001 Collected: 09110/1309:45 Received: 09/10/1311:46 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual WIDRO GCS Diesel Range Organics Surrogates n-Triacontane (S) 8260 MSV UST Benzene Ethylbenzene Toluene Xylene (Total) Surrogates 1,2-Dichloroelhane-d4 (S) Toluene -d8 (S) 4-Bromofluorobenzene (S) Date: 09/16/2013 08:09 AM Analytical Method: WI MOD DRO Preparation Method: WI MOO DRO ND mglL 0.10 1 09/11/13 09:44 09/13/13 15:23 83 % 50-150 1 09/11/13 09:44 0911311315:23 638-68-6 Analytical Method: EPA 6260 NO ug1L 1.0 1 0911211313:28 71-43-2 ND ug1L 1.0 1 0911211313:28 100-41-4 ND ug1L 1.0 1 0911211313:28 106-88-3 ND uglL 3.0 1 0911211313:28 1330-20-7 100 % 75-125 1 09/12/13 13:28 17060-07-0 102 % 75-125 1 09/12/13 13:28 2037-26-5 102 % 75-125 1 09/1211313:28 460-00-4 REPORT OF LABORATORY ANALYSIS This report shall.not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 5 of 11 aceAnalXkal www.pawbbs.com Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 QC Batch: MSV/24919 QC Batch Method: EPA 8260 Associated Lab Samples: 10241461001 METHOD BLANK: 1522812 Blank Associated Lab Samples: 10241461001 Parameter Units Benzene uglL Ethylbenzene uglL Toluene ug1L Xylene (Total) ug1L 1,2-Dichloroethane-d4 (S) % 4-Bromofluorobenzene (S) % Toluene -d8 (S) % QUALITY CONTROL DATA Analysis Method: EPA 8260 Analysis Description: 8260 MSV UST -WATER Matrix: Water 1522813 Units Blank Reporting LCS % Rec Result Limit Analyzed ND 1.0 09/12/13 10:32 ND 1.0 09/12/13 10:32 ND 1.0 09/12/13 10:32 ND 3.0 09/12/13 10:32 98 75-125 0911211310:32 103 75-125 09!12!1310:32 103 75-125 0911211310:32 Qualifiers Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (812)607-1700 LABORATORY CONTROL SAMPLE: Parameter 1522813 Units Spike Conc. LCS Result LCS % Rec % Rec Limits Qualifiers Benzene ug1L 20 16.8 84 75-125 Ethylbenzene uglL 20 17.0 85 75-125 Toluene uglL 20 17,1 85 75-125 Xylene (Total) ug1L 60 52.0 87 75-125 1,2-Dichloroethane-d4 (S) % Units Result Conc. 100 75-125 4-Bromofluorobenzene (S) % % Rec Limits 102 75-125 Toluene -d8 (S) % ND 20 20 103 75-125 MATRIX SPIKE 8 MATRIX SPIKE DUPLICATE: 1522891 1522892 MS MSD 10241115019 Spike Spike MS MSD MS MSD %Rec Max Parameter Units Result Conc. Conc, Result Result % Rec % Rec Limits RPD RPD Qual Benzene ug1L ND 20 20 19.6 20.1 96 99 70-135 3 30 Ethylbenzene uglL ND 20 20 19.7 20.3 98 102 75-125 3 30 Toluene uglL ND 20 20 19.6 20.1 96 100 75-125 2 30 Xylene (Total) ug1L ND 60 60 59.7 61.4 99 102 75-125 3 30 1,2-Dichloroethane-d4 (S) % 102 102 75-125 4-Bromofluorobenzene (S) % 103 102 75-125 Toluene -d8 (S) % 102 103 75-125 Date: 09/16/2013 08:09 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 6 of 11 aceAnalytical wwwpacetabs.csm Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 QC Batch: OEXT122950 QC Batch Method: WI MOD DRO Associated Lab Samples: 10241461001 METHOD BLANK: 1521580 Associated Lab Samples: 10241461001 Parameter Units Diesel Range Organics mg1L n-Triacontane (S) % QUALITY CONTROL DATA Analysis Method: Wi MOD DRO Analysis Description: WIDRO GCS Matrix: Water Blank Reporting Result Limit Analyzed ND 0.10 09/1311310:10 89 50-150 09/1311310:10 Qualifiers Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (612)1307-1700 LABORATORY CONTROL SAMPLE & LCSD: 1521581 1521582 Spike LCS LCSD LCS LCSD % Rec Max Parameter Units Conc. Result Result % Rec % Rec Limits RPD RPD Qualifiers Diesel Range Organics mgJL 2 1.7 1.8 85 89 75-115 4 20 n-Triac ontene (S) % 95 95 50-150 Date: 09/1 61201 3 08:09 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 7 of 11 aceAnalytical wwwpaualahacom QUALIFIERS Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 DEFINITIONS Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 (612)607-1700 DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution of the sample aliquot, or moisture content. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL -Adjusted Method Detection Limit. PRL - Pace Reporting Limit. RL - Reporting Limit. S - Surrogate 1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean -Up U - Indicates the compound was analyzed for, but not detected. N-Nilrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited, Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. WORKORDER QUALIFIERS WO: 10241461 L11 Samples were received outside of the recommended temperature range of 0-6 degrees Celsius. The samples were received from the field on ice, indicating the cool down process had begun. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/16/2013 08:09.AM without the written consent of Pace Analytical Services, Inc.. Page 8 of 11 aceAnaiXical WW..paosfa6s.cnm QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: 13-0754 Barton Sand and Gravel Pace Project No.: 10241461 Pace Analytical Services, Inc. 1700 Elm Street- Suite 200 Minneapolis, MN 55414 (612)607-1700 Analytical Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch 10241461001 NW -1 (772842) WI MOD DRO OEXTIM50 WI MOD DRO GCSVI12036 10241461001 MW -1(772842) EPA 8260 MSV/24919 Date: 0911 61201 3 08:09 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 9 of 11 . ceAnalyt jql Field Services Division Client; 134A ¢ GtyVp- /Project: L�'vn rd- EmLe!4 — Monitoring Point ID UV - Labeled • Inside Diameter !:Z_ (inches) Key # �Locked E] Not Locked Casing Material: X'PVC ❑ steel E] Stainless Steel P� fi 114" Top of Casing Elevation b" �1 Feet • Well depth Feet Static water level measurement before purging Xg5-, Sa Feet Static water level measurement at time of sampling Feet Static Water Level Elevation Before Purging /& Feet PuWd..Method Z-2-11 Ctvia�a s AAS,r99d Whtelcntumn Feet 4 im /,5ra Ll- Pyrg-6d 0 41 -a, -gr — 0 One Casing Volume 0 Gallons Pump Rate 01,S7 j46PM) LPM Volume Purged 0,40 Gallons Well Sampling Field Data Log Sheet Date Sampled %,I M-4, OR Time Sampled 0!fisE pH -;;a,3 (units) D.0 VA (mg/i) Sampling Equip. T oVe- j�eUM4 Spec. Cond. .5-040 (Pmhos1cm) Turbidity (N-ru) Temp. /a, S7 ('C) Eh (mv) Analyzed by Other Field Measurements Temp. Corrected:>—d"Yes El No El NA Sample for -Soluble Metals Filtered in Field: El Yes El No �NA Weather Conditions During Sampling: 7.;2 - Sample Description: a- t-- -4-- a Observations-'------. ift, INK e /oo Nj4 YV)a- IVA 4z. -5 J(ZL Form Revisew ovz4aulz Name/Affiliation of Sampler(s): __p �i;l Lead Technician Signature: 4?W Date: aceAnalyt%l/L(1® Field Instrument Calibration and Performance Log Field Services Division Client Name: i3alt - � d' 6hdk4 Project #: J3 — 6 �: � Project Description: 24r Vd O -a S2 m f Date Meter # Technician Calibration Suffer Results Temp Comments (s.u.) 4= 7= 10= 4= 7= 10= 4 Buffer (manufacturer I lot # 1 expiration date); 17 Buffer (manufacturer! lot # I expiration date): 10 Buffer (manufacturer I lot # 1 expiration date): Reference Standard Meter Display Date Meter # Technician (umhoslcm) (umhos/cm) Comments �/o �� dffr /ejrz) Standard info (manufacturer! lot # I explretlon date): iR r l ate Meter # Technician Temp Barometric Pressure D.Q. Results Comments (°C) (mmHgI (mg/L) DateI Meter # I Tecftn4 i n I " " (MV) rd info (manufacturer I lot # 1 expiration date): Temperature Date ID # Technician Reference Ternp (mv) Result Comments Comments Standard info (manufacturer I lot # I expiration date): Farm revised: 0211.106 Name/Affiliation of Sampler(s): fh2114,4(p LQL,4 Lead Technician Signature: X-�/A�'i, /� Date: /C� INIAL gl }aelul se�dweg tea.. (NIA) 1e1003 PePeg r Rpo}eno (NW eol low J o, ul du[sl LL yr S: sv hf Ti m -1-i ;n1�y �q PC.C emu r3 L tdl9UL) a aai a " aY=Vr zfaniqVz Z �.1:- s Lu LU sa Q Y ti : a o . ... 0 3 N .. N gl tea.. low l Ti m -1-i emu r3 L tdl9UL) a aai a " aY=Vr zfaniqVz Z �.1:- s Lu LU sa Q Y ti : a o . ... 0 3 N .. N Sample CondRion Client Name: Project #: Upon. Receipt Courier: []Fed Ex ❑UPS ❑U5PS gent ❑Commercial ❑Pace ❑Other: r Tracking Number: Custody Seal on Cooler/Box Present? []Yes �"0 seals Intact? ❑Yes optional: Proi. Due Date: Proj. Name: Packing Material: ❑Bubble Wrap �bble Bags []None ❑Other: Temp Blank? s ❑No Thermom. Used: i OBA912167504 ❑80512447 ❑72337080 Type of Ice: ti t ❑Blue ❑None Samples on ice, cooling process has begun Cooler Temp Read (•C):7 ,. 7 Cooler Temp Corrected (°C):+ 7 Biological Tissue Frozen? ❑Yes ❑No Temp should be above freezing to 6°C Correction Factor: r S` Rate end initials of Person Examining Contents: /7 13 rnm.,.ente- Chain of Custody Present? Document Name: Document Revised: 28Jan2013 �������� Sample Condition Upon Receipt Form Page 1 of 1 Document No.: F-PAN-L-21i.3-rev.06 Issuing Authority: Pace Minnesota Quality Office Sample CondRion Client Name: Project #: Upon. Receipt Courier: []Fed Ex ❑UPS ❑U5PS gent ❑Commercial ❑Pace ❑Other: r Tracking Number: Custody Seal on Cooler/Box Present? []Yes �"0 seals Intact? ❑Yes optional: Proi. Due Date: Proj. Name: Packing Material: ❑Bubble Wrap �bble Bags []None ❑Other: Temp Blank? s ❑No Thermom. Used: i OBA912167504 ❑80512447 ❑72337080 Type of Ice: ti t ❑Blue ❑None Samples on ice, cooling process has begun Cooler Temp Read (•C):7 ,. 7 Cooler Temp Corrected (°C):+ 7 Biological Tissue Frozen? ❑Yes ❑No Temp should be above freezing to 6°C Correction Factor: r S` Rate end initials of Person Examining Contents: /7 13 rnm.,.ente- Chain of Custody Present? s []No N/A 1. Chain of Custody filled Out? ISPS ❑No N/A 2. Chain of Custody Relinquished?L--t s []No ❑NIA 3. Sampler Name and/or Signature on COC? s [:]No ❑NIA 4. Samples Arrived within hold Time? s [JN. ❑N/A 5. Short Hold Time Analysis <72 hr)? Yes NK, ❑N/A 6. Rush Turn Around Time Requested? s []No ❑N/A 7. Sufficient Volume?I(Zyes [:]No []N/A 8. Correct Containers Used? s []No ❑NJA 9. -Pace Containers Used? Ig6N ON. ❑NJA Containers intact? s []No❑N/A 10. Filtered Volume Received for Dissolved Tests? ❑Yes No A 11. Sample labels Match COC? jt�i es []No ❑N/A 12. -Includes DateJTime/1D/Analysis Matrix: Eli All containers needing acid/mase preservation have []Yes ❑No/A 13. ❑HNO3 ❑ H2504 ❑NaOH ❑HCI been checked? Noncompliances are noted in 13. /- All containers needing preservation are found to be in Sample # compliance with EPA recommendation? []Yes []No /A (HNO3, HzSO <2, NaOH>12) � # of added exce ti • liform, TOC. Oil and Grease, -DRO {water s Nytpr Elmo preservative:when completed: preservative: Heads ace in VOA Vials ( >6mm)? ❑Yes NFT. ❑N/A 14. Trip Blank Present? ❑Yes o ❑N/A 15. Trip Blank Custody Seals Present? ❑Yes N0A Pace Trip Blank Lot # if purchased): CLIENT NOTIFICATION/RESOLUTION Person Contacted: Comments/Resolution: Project Manager Review: _� Note: Whenever there is a discrepancy a hold, incorrect preservative, out of temp, Field Data Required? []Yes ❑No Date/Time: Date: 1` h-3 a copy of this form will be sent tilthe N rth Carolina DEHNR Certification Office (i.e out of Page 11 of 11 ATTACHMENT 3 MONITORING WELL DATA PLOTS LEGGETTE, BRASHEARS & GRAHAM, INC. MW -1 Temperature and Groundwater Elevation vs. Time Zavoral Aggregate Mine Scandia, MN 50.00 - 49.50 MW -1 Temperature --*--Groundwater 785 (F) 784.5 Elevation (ft amsl) 784 783.5 LL 783 a� L 49.00 782.5 L (V Q E H deviation due to Pace 782 Analyical removing the logger from well. 781.5 48.50 781 780.5 48.00 780 .001�00f, 1�0 ?00 y� y� 00;1 y1 00 It, 9� � Date/Time 770.00 769.50 769.00 N E 768.50 M ++ 4 C 768.00 O -W M N 767.50 W L M 767.00 C G 766.50 766.00 765.50 765.00 PZ -1 Groundwater Elevation (ft amsl) and Precipitation (inches) vs Time Zavoral Mining and Reclamation Project Scandia, MN Groundwater Elevation (ft amsl) Precipitation (inches) i 01A0. 01�' 01�' O O Active Mining Operations Began November 1st f Precipitation Gauge Removed for Winter Season 01�0.;0101 O. 00 00 00 1? O Date 0.6 0.5 0.4 G1 s v .E- C C 0.3 O fC 2- 0.2 0.z a 0.1 M Tech\Scandia AGround atter Quality roram LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -1, 2, 3 Groundwater Quality Parameters > > i 01A0. 01�' 01�' O O 0.6 0.5 0.4 G1 s v .E- C C 0.3 O fC 2- 0.2 0.z a 0.1 M Tech\Scandia AGround atter Quality roram LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -1, 2, 3 Groundwater Quality Parameters > > 813.00 812.50 812.00 H 811.50 M r— O 811.00 O 810.50 W L G1 M 810.00 c C 809.50 C7 809.00 808.50 808.00 PZ -2 Groundwater Elevation (ft amsl) and Precipitation (inches) vs Time Zavoral Mining and Reclamation Project Scandia, MN Groundwater Elevation (ft amsl) Precipitation (inches) ,/�O. Active Mining Operations Began --s. November 1st r 0 01� �O O , �W. Ae7 01�' 6 O 00 .00 s Precipitation Gauge Removed for Winter Season t t"t th Liu L. 1z 6/1O'l�' ,/�O. �O r 0 01� �O O O. 01�' 6 O 00 .00 9�1 01�0. j�01�0. 00 .00 Date 0.6 0.5 0.4 Ln G1 L U C C 0.3 O M .Q CID L 0.2 d 0.1 M Tech\Scandi, Agregate\ater Quality Parameters LEGGETTE BRASHEARS & GRAHAM INC. MW -1, Pel, 2, 3 Groundwater Qualify Parameters > > r 0 01� �O O Ola' % O 01�' 6 O 01A0. 00 01A0. �0 0 M Tech\Scandi, Agregate\ater Quality Parameters LEGGETTE BRASHEARS & GRAHAM INC. MW -1, Pel, 2, 3 Groundwater Qualify Parameters > > 820.00 819.50 819.00 H E 818.50 fC = 818.00 O _O 817.50 W L M 817.00 -a c C 816.50 (L^ V 816.00 815.50 815.00 Trails End Groundwater Elevation (ft amsl) and Precipitation (inches) vs Time Zavoral Mining and Reclamation Project Scandia, MN Groundwater Elevation (ft amsl) — Precipitation (inches) ........... ------------------ O'rt'O. 0O. Active Mining Operations Began November 1st 60 .00 �01�' 0 0 1Q0. Q0. 00 O� 00 f ; --- Precipitation Gauge ---------- Removed for Winter Season O O O 00 00 t i Ll I T l o �O. 01�0. 00 .00 Date 0.6 0.5 0.1 O'rt'O. 0O. 60 .00 T l o �O. 01�0. 00 .00 Date 0.6 0.5 0.1 M Tech\Scandia Groundwater vo unlit Para \ LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -I, 2, 3 Groundwater Quality Parameters > > 0 �01�' 0 0 1Q0. Q0. 00 O� 00 O O O 00 00 M Tech\Scandia Groundwater vo unlit Para \ LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -I, 2, 3 Groundwater Quality Parameters > > 300 280 260 240 220 F7 >. 200 H 180 160 140 120 100 6 01 �1?O O S:\Tech\Scandia Aggregate\Zavoral\Hydrogeo\ MW -1, PZ -1, 2, 3 Groundwater Quality Parameters MW -1 Salinity (ppm) vs Time Zavoral Mining and Reclamation Project Scandia, MN • MW -1 Salinity (ppm) Active Mining Operations Began November 1st d' 9 ��O �OZ��O /� OiOOO �0 /�O1��• j�O1��•/2OZ��• A�O ��O O O O 00 00 00 O O Date LEGGETTE, BRASHEARS & GRAHAM, INC. 400 380 360 E 340 Q. Q. 320 •O N 300 O �^ 280 D f0 a-+ 260 240 220 200 MW -1 Total Dissolved Solids (ppm) vs Time Zavoral Mining and Reclamation Project Scandia, MN 00'I r'O 701�'O. 9/�i�OI �O. �01� �01�' �01�' OZAO. 01A0. 00 �00 00 �00 q00 X00 X00 �00 00 Date M Tech\Scandia Groundwater vo unlit Para \ LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -1, 2, 3 Groundwater Quality Parameters > > 500 450 =L 400 Z v 3 -a C 350 U 300 250 MW -1 Conductivity (µS) and Resistivity (ohm -cm) vs Time Zavoral Mining and Reclamation Project Scandia, MN i MW -1 Conduc ivity (uS) AquaTroll 200 Removed and then Replaced �. Resistivity (ah -cm) for Pace Groundwater Sampling event ----------------------------------- Active Mining 0 Operations Began November 1st i 4000 3500 3000 2500 E L O 2000 T a-+ 1500 1000 500 0 �000 /�i�0Z300 00 00 TIC` 01 A000 S!jT 0�A000 0 Date M Tech\Scandia Groundwater vo unlit Para \ LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -1, 2, 3 Groundwater Quality Parameters > > 8 01�00 01�00 0 4000 3500 3000 2500 E L O 2000 T a-+ 1500 1000 500 0 �000 /�i�0Z300 00 00 TIC` 01 A000 S!jT 0�A000 0 Date M Tech\Scandia Groundwater vo unlit Para \ LEGGETTE BRASHEARS & GRAHAM INC. MW -1, PZ -1, 2, 3 Groundwater Quality Parameters > >