report of findings: groundwater supply investigation …

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KALA' GROUNDWATER CONSULTING LTD.

#3 - 3 107A - 3 1 st Avenue #207 - 220 4th Avenue b'

Vernon, B.C. - VIT 2G9 Tel (250) 545-1720

Kamloops, B.C. - V2C 3N6 Tel (250) 372-9194

Fax (250) 545-1720 Fax (250) 372-9398 [email protected]

REPORT OF FINDINGS:

GROUNDWATER SUPPLY INVESTIGATION ALTO UTILITIES LTD.

WINFIELD, BRITISH COLUMBIA

Report Prepared for:

Alto Utilities Ltd. c/o Stantec Consulting Ltd. 200-2141 Springfield Road

Kelowiia, BC YlY 7x1

Attn: Rob Fortuin, P.Eng.

Kala Reference: R02392-0107 Report Prepared by: Kala Groundwater Consulting Ltd.

Perry Per: Grun d k G a Project Geoscientist

Ltd.

Distribution: 5 Copies - Stantec Consulting Ltd. 2 Copies - Kala Groundwater Consulting Ltd.

KamloopsIVernon

PG/pJb/lh/lct/02392/R02392-0 107 ,I

KAof GROUNDWATER CONSULTING LTD. CONFIDENTIAL

REPORT SUMMARY

Kala Groundwater Consulting Ltd. (Kala) was retained by Stantec Consulting Ltd. (SCL) on behalf of Alto Utilities Ltd. (AUL) of Winfield, BC to complete a groundwater supply investigation directed at developing one new community potable water well to augment existing groundwater resources. The objective of the investigation was to develop a new community potable water well to support expanded subdivision development. The new well was to be capable of approximately 38 Us. Kala was to 53O‘jI determine the safe maximum pumping yield of the new drilled well and safe pumping rates for the existing West Well and new South Well while simultaneously pumping.

The site is located within the Kalamalka Valley at an approximate elevation of 410 m Ah4SL. Local topography may be described as a lowland setting with valley side bedrock controlling the features. The majority of the surrounding land area is residential and light agricultural. Groundwater from upland areas flows into sediments of an alluvial fan at the site. Groundwater flow in the fan is northward towards Wood Lake. The underlying aquifer is comprised of coarse granular materials with assumed high permeability. Kala suspects that the gradient through the site area is low, in the order of 0.005. The groundwater flow rate is estimated to be moderate as indicated by the gradient of the Vernon Creek valley and the materials intersected in dnlling of the aquifer.

Well drilling was undertaken by Field Drilling Contractors Ltd. of Aldergrove, BC on May 2, 2002. The stratigraphy comprised alternating layers of silty clay, clay, and silt with minor gravel to 13 metres underlain by sandy gravel. Bedrock was intersected at 30.78 m. The 305 mm diameter well was completed with 3.96 m of blank set between 34.05 m and 30.10 m, 3.048 m of 0.250” slot stainless steel well screen set between 30.10 and 27.0 m, 3.96 m of blank set between 27.0 m and 23.10 m, and 2.13 m of 0.060” slot stainless steel well screen between 23.10 m and 20.94 m.

Yield testing was undertaken on the well on September 24, 2002. The yield test contractor was Precision Service & Pumps (PSP) of Abbotsford, BC. Successive attempts to find a suitable constant pumping rate, without exceeding allowable drawdown, was unsuccessful. It was concluded that pumping at the rate of 62.77 L/s during the step tests induced siltation and compaction of materials on the well screens, commonly referred to as sand-bridging. A cable tool rig was contracted from Field Drilling Contractors Ltd. and was mobilized onto the well on October 4, 2002. Cable tool development was undertaken using surge and bail methodology. The well was considered ready for a second yield test following the cable tool development.

Based on calculations of pumping test data, both wells can be simultaneously pumped using the current installations in the West Well (pumping rate of 37.10 L/s) and by installing a pump capable of 39.18 L/s in the new South Well, without creating excessive drawdown. The combined pumping rate is then 76.28Ws.

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Groundwater sample results indicate a Ca-Mg-HC03 water type. The total iron concentration was 0.7mg/L whereas the maximum allowable criterion is 0.3 mg/L. Iron is an aesthetic parameter and as the dissolved iron concentration was <0.01 mg/L the iron is not solubilized and is therefore unlikely to promote concerns.

Kala recommends the South Well be completed with a submersible pump set within the blank between the 2 well screens. The bottom of the pump assembly should be set at 25.6 m below ground surface. A pump capable of a rate of 39.18 L/s should be utilized. Kala recommends verification of well screen depths prior to commencing installations.

Kala is in the process of delineating a preliminary Wellhead Protection Area for the AUL wells. Kala will provide a Wellhead Protection Area report under a separate cover.

TABLE OF CONTENTS

1 . 0 2.0

2.1 2.2 2.3

3.0 4.0

4.1 4.2

5.1 5.2

6.1 6.2 6.3 6.4

5.0

6.0

INTRODUCTION ............................................................................................................. 1 BACKGROUND .............................................................................................................. 1

General ....................................................................................................................... 1 Scope of Services ....................................................................................................... 1

CLIMATE ........................................................................................................................ 2 GEOLOGY ...................................................................................................................... 3

Bedrock Geology ......................................................................................................... 3 Surficial Geology ......................................................................................................... 3

HYDROGEOLOGIC SETTING ........................................................................................ 4

Site Description and Physiography .............................................................................. 2

Aquifer Mapping .......................................................................................................... 4 Hydrogeology .............................................................................................................. 4

FIELDWORK ................................................................................................................... 5 General ....................................................................................................................... 5 Well Drilling - Production Well ..................................................................................... 5 Yield Test # I ............................................................................................................... 6 Well Screen Re-development ...................................................................................... 7

6.4.1 Yield Test #2 ........................................................................................................ 7 6.5

7.1 7.2 7.3 7.4 7.5

7.0

8.0 9.0 10.0 11.0 12.0

PW#1 . Groundwater Sampling ................................................................................... 8 PROGRAM FINDINGS . Production Well ....................................................................... 8

Subsurface Conditions ................................................................................................ 8 Well Yield .................................................................................................................... 8 Sustainable Well Yield ................................................................................................. 9 Well Yield. Combined Pumping South Well and West Well ....................................... 11 Water Quality ............................................................................................................ 12

CONCLUSIONS ............................................................................................................ 13 RECOMMENDATIONS ................................................................................................. 13 CLOSURE ..................................................................................................................... 14 REFERENCES .............................................................................................................. 14

WELLHEAD PROTECTION CONSIDERATIONS ......................................................... 13

LIST OF TABLES Groundwater Supply Investigation - Project Summary Water Well Location Information Water Well Completion Information Drilling Stratigraphy Yield Test Information - South PW Water Quality Summary Step Test Information Pumping Test Information - October 10, 2002

Table 1: Table 2: Table 3: Table 4: Table 5: Table 6: Table 7: Table 8:

LIST OF FIGURES

Figure 1 - Site Location Diagram Figure 2 - Site Layout Diagram Figure 3a, b & c - Site Photographs Figure 4 - Surficial and Bedrock Geology Diagram Figure 5 - Aquifer Map Figure 6 - Proposed Well Installation Diagram Figure 7 - Combined Yield Test and South Well Constant Rate Yield Test Figure 8 - 100 Day Drawdown - South Well Figure 9 - 100 Day Drawdown Simultaneous Pumping - South Well Figure 10 - 100 Day Drawdown Simultaneous Pumping - West Well

LIST OF APPENDICES

Appendix A: Definition of Terms Driller’s Log Grainsize Distribution Curves

Yield Test Data Descriptions of Analysis Utilized

Analytical Chemistry Certificates

Appendix B: Definition of Terms

Appendix C: Comparative Criteria

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1 .O INTRODUCTION

Kala Groundwater Consulting Ltd. (Kala) was retained by Stantec Consulting Ltd. (SCL) on behalf of Alto Utilities Ltd. (AUL) of Winfield, BC to complete a groundwater supply investigation directed at developing one new community potable water well to augment existing groundwater resources. This report summarizes the results of a groundwater supply investigation conducted from April to November, 2002. A summary of the program findings is shown in Table 1.

Authorization for this project was provided by Mr. Rob Fortuin, Project Engineer of SCL on behalf of AUL via Kala confirmation of assignment form COA02392 dated April 12, 2002. Sections 1.0 to 5.0 of this report provide background information, sections 6.0 to 8.0 provide fieldwork and sections 9.0 and 10.0 provide conclusions and recommendations. Site location, layout diagrams, regional geology diagrams, well location plans, interpretation diagrams and site photographs are shown within the appended Figures. Drillers’s log and grainsize distribution curves are provided in Appendix A. Yield test data and aquifer sieve analysis findings are shown in Appendix By detailed certificates of analytical chemistry and comparative criteria are provided in Appendix C and pertinent information is provided in Appendix D. Preliminary wellhead protection considerations will be provided under separate cover.

2.0 BACKGROUND

2.1 General

The site is located adjacent to Lodge Road, within the Kalamalka Valley between Wood Lake and Ellison Lake, in Winfield, BC. The surficial geology of the site consists of an alluvial fan complex comprised of sand gravel and silt with some clay. The approximate surface elevation of the area is 410 m above mean sea level (AMSL).

The production well diameter, depth and construction methodology was based on the results of previous well drilling conducted on the site dating back to 1970. A testwell drilling program was not undertaken. A site location diagram is provided as Figure 1. The main features of the new water well are summarized in Table 1.

2.2 Scope of Services

The objective of the investigation was to develop a new community potable water well to augment existing water resources. The community is currently supplied by two production wells, one on the east side of the site, and one on the west. The new well was to be capable of approximately 38 L/s. Kala was to determine the safe maximum pumping yield of the new well, and a combined safe pumping yield of the West Well and new well while both are pumping. Water quality analysis was undertaken for detailed chemical and bacteriological parameters. This report presents the results of a field and desktop evaluation conducted between April and November 2002.

KALA GROUNDWATER CONSULTING LTD.

R02392 - Alto Utilities Ltd. Groundwater Supply Investigation

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The scope of services included the following tasks and/or items:

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Supervision of yield testing; Construction supervision of one groundwater production well;

Groundwater sampling and analysis for the determination of chemical and bacteriological quality; Establishment of a preliminary wellhead protection area (WHPA); and Covering report with interpretation, location and layout diagrams.

Well siting was provided by the client in conjunction with the owner. Based on information supplied by the client, the development currently requires up to 38 L/s (3,283 m3/d) of sustainable potable groundwater. In addition, the groundwater must be of reasonable quality with all standard health parameters below the maximum allowable concentration as established by Health and Welfare Canada and BC Environment.

2.3 Site Description and Physiography

The site is located at 50'01 '25"N, 1 19'23'45"W. A site location plan is shown in Figure 1 and a site layout diagram is shown in Figure 2. Site photographs are shown in Figures 3a, 3b and 3 c. Well location information is summarized in Table 2.

The site is located within the Kalamalka Valley, an area of low to moderate relief, at an approximate elevation of 410 m AMSL. This valley, as with many of the major valleys of the Okanagan area, is controlled by bedrock faulting. The more extensive Okanagan Valley trends north-south, located three to four kilometers to the west of Kalamalka Valley. Local topography may be described as a lowland setting with valley side bedrock controlling the features. The majority of the surrounding land area is residential and light agricultural.

Wood Lake and Ellison Lake were formed from alluvial damming of a once existent single lake basin. Damming occurred as the result of fluvial deposition from the east, at the outflow of a tributary to the valley now occupied by Clarke and Vernon Creeks.

Drainage is controlled by topography. Precipitation providing recharge to the upper mountains, reports to the valley floor via shallow permeable soils, creeks and gullies. A smaller portion of groundwater infiltrates into the deeper fractured bedrock. There is a floodplain associated with Vernon and Winfield creeks near to the site.

3.0 CLIMATE

The site borders on the Ponderosa Pine biogeoclimatic zone, which is the warmest and driest zone of the province and confined to the valley bottoms of the south central interior.



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Altitude and physiography determine local climate. The area is generally wet during late spring and early fall periods. Frozen ground and snow cover of two to three months duration is typical for the region. Average temperature of the coldest month is about -3°C and the average temperature of the warmest month is over 25°C. Precipitation averages approximately 388 &year based on 30-year norms, of which an average of 25% is snowfall. The area has approximately 210 frost-free days annually.

4.0 GEOLOGY

4.1 Bedrock Geology

Geological mapping of bedrock and surficial geology is provided by the Geological Survey of Canada memoir 380 (Fulton). The area is underlain by rocks of the Monashee Group, comprised of gneiss, quartzite, amphibolite and marble of Proterozoic to middle Paleozoic age. Surrounding hills to the east are primarily Miocene basalts. Based on an interpretation of aerial photographs and a site walkover, bedrock outcrops are evident near to the east of the site. A bedrock and surficial geology diagram is depicted in Figure 4.

4.2 Surficial Geology

The site comprises a large alluvial fan complex chiefly consisting of silt, sand and gravel. The local surficial geology is related to recent Fraser Glaciation and postglacial deposition. Deeper sediments within the fan are likely glacial, however from a hydrogeological perspective are not as important as the shallower more widely used postglacial sediments. Immediately following local deglaciation (8,500 years before present) before the establishment of vegetative cover, erosion and sedimentation were much more active than at present. Streams were heavily loaded as the glacial deposits were cut to stable slopes and glacial debris was swept into the trunk valleys and deposited into fans and fan deltas. The bulk of these postglacial deposits were laid down within a few hundred years of deglaciation. Fan deposits result from relatively rapid deposition where stream flow gradients decrease. The rapid deposition produces poorly sorted deposits that grade from coarse dirty gravels at the fan apex to sandy silty clay at the toe. The fan contains crude stratification roughly parallel to the fan surface. Fan deposits are generally less than 10 m in thickness.

As slopes stabilized and vegetation established, there was a swing towards the present regime of minor entrenchment of earlier deposits, with periodic flooding being the primary form of sedimentation taking place outside of the lake basins. The formation of most of the fan complex followed this process. Evidence of a former large lake which once occupied the valley from Ellison Lake to Wood Lake is present as glaciolacustrine deposits of silt and sand along the hillsides west and east of the Kalamalka Valley.


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5.0 HYDROGEOLOGIC SETTING

5.1 Aquifer Mapping

A map-based aquifer classification system has been developed to support groundwater management in the Province of British Columbia. The system classifies aquifers on the basis of their level of development and vulnerability to contamination and provides ranking values for aquifers using hydrogeoloBc and water use criteria. Application of the system leads to the development of an aquifer inventory. To date, a total of over 400 aquifers have been identified and classified

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The site is within the Ellison Lake-Wood Lake aquifer which has been mapped and classified and referred to as aquifer #344. This is shown in Figure 5 . The aquifers’ “IB” vulnerability rating suggests that the aquifer is heavily developed with moderate vulnerability to contamination. The aquifer is rated 13 out of a possible 2 1 points suggesting there is a long-term concern regarding the potential for contamination and aquifer mining.

5.2 Hydrogeology

The groundwater hydrology of the site is fairly simple on a large scale, with some local complexity as a result of local features of the sediments that make up the alluvial fan. In general, the groundwater hydrology of the area is a follows:

1. Groundwater recharge to the area is primarily from precipitation upon upland areas. The water table slopes gently toward Wood Lake, with a seasonal fluctuation in the groundwater level due to seasonal fluctuations in recharge.

2. Groundwater in the fan is recharged mostly from three sources. These are: Groundwater recharge from the northerly trending Vernon Creek valley; Direct recharge fi-om precipitation on the area; and Minor lateral groundwater flow from subsurface contact with the fractured bedrock to the east.

i) ii) iii)

3. Groundwater likely discharges into Wood Lake from the site area.

Confined artesian aquifer conditions are reported in valleys of the Vernon area. Artesian pressure develops where groundwater flows into an aquifer is confined by an impermeable bed. As groundwater flows into the valleys from the uplands, potential pressures develop.



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Flow is from recharge areas in the uplands through unconsolidated deposits and fractures in rock. Discharge occurs into the valleys. Groundwater from the upland area flows into the sediments of the alluvial fan at the contact between the valley and upland sediments, and the bedrock.

Groundwater flow in the fan is northward toward Wood Lake. The groundwater gradient and hydraulic characteristics of the sediments determines the rate of groundwater flow. In the aquifer intersected by the AUL wells the sediments are comprised of coarse granular materials with assumed high permeability. Based on limited hydrogeologic mapping, Kala suspects that the gradient through the site area is low, in the order of 0.005. The groundwater flow rate is estimated to be moderate as indicated by the gradient of the Vernon Creek valley and the materials intersected in drilling of the aquifer.

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6.0 FIELDWORK

6.1 General

Kala reviewed site conditions with the client prior to water well drilling. The well site was located based on information obtained from records of previous dnlling on the site, and access conditions and future serviceability considerations.

6.2 Well Drilling - Production Well

Well drilling was undertaken by Field Dnlling Contractors Ltd. of Aldergrove, BC on May 2, 2002. Table 3 provides well completion information. One 304.8mm diameter well was completed near to the south property boundary on Lodge Road. Table 4 summarizes the general soil stratigraphy encountered at this site. In general the stratigraphy comprised alternating layers of silty clay, clay, and silt with minor gravel to 13 metres underlain by sandy gravel. Bedrock was intersected at 30.78 m. A proposed well installation diagram is shown in Figure 6. The well was completed to 34.05 m below ground surface (bgs) with 3.96 m of blank set between 34.05 m and 30.10 m, 3.048 m of 0.250” slot stainless steel well screen set between 30.10 and 27.0 m, 3.96 m of blank set between 27.0 m and 23.10 m, and 2.13 m of 0.060” slot stainless steel well screen between 23.10 m and 20.94 m. The testwell intercepted suitable conditions and a production well, referred to as the South Well, was completed at the site.

Kala personnel supervised the well drilling.

Kala designed the new well with two screens separated by a blank to optimize the production and efficiency of the well and minimize drawdown interference in the nearby AUL West Well.

Kala collected sediment samples above and throughout the target aquifer interval at either 0.6 or 1.5 m intervals. Optimum screen sizing was determined based on a D40 methodology, which involved the completion of grain size distribution analysis on samples collected at regular intervals and plotting the nominal particle diameter at 40% retained. From the plot and geologic interpretation a determination of the recommended well screen diameter, length and slot size was undertaken. Grainsize distribution curves are shown in Appendix A. Well assembly components are detailed in Table 3.


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The well screen assembly was installed on June 7,2002. After installation, the completed well was airlift developed to a silthand free condition using the air rotary drill. Airlift development was completed on June 9,2002. The well was developed to a visually silt and sand free condition.

6.3 Yield Test #I

The yield test contractor was Precision Service & Pumps (PSP) of Abbotsford, BC. Four 64-minute step pumping tests at 26.62, 38.67, 50.22 and 62.77 L/s were undertaken on the well on September 23 and 24, 2002. During the 62.77 L/s step test, drawdown was noted to exceed the safe available drawdown in the well. Total available drawdown in the well, as measured from the static water level to the top of the screens, is 18.85 m. Safe allowable drawdown is normally 70-80% of available drawdown, or 13-15 m in this instance. Drawdown of 17.35 m was measured after pumping at a rate of 62.77 L/s for 35 minutes.

A 24-hour constant rate yield test was undertaken on the well on September 24, 2002. The constant rate flow rate was 46.12 L/s based on the results of the step tests. Flow rates were measured using a flow orifice employing a 254 mm diameter pipe with a 152 mm diameter orifice plate. Groundwater was discharged to a ditched area in the valley floor approximately 50 m east of the new well. This ditch is sealed with native clay negating concerns of aquifer infiltration. Water levels were measured using an electric tape. Drawdown curves and pump test data are detailed in Appendix B. An Aurora 8HFL-2 submersible pump was set at 27.4 m bgs, between the 2 sets of screens, for the test. Following each step test and the constant rate yield test, well recovery was monitored. Yield test findings are shown in Appendix B. During the pumping of the South Well, drawdown interference was monitored in the West Well of Alto Utilities located 25 m northwest of the new well, as well as a domestic well and an imgation well located 440 m and 600 m west of the new well respectively. The observation wells are completed to similar depths as the South Well.

The constant rate pumping test was unable to maintain a yield of 46.12 L/s due to excessive drawdown. Successive attempts to find a suitable constant rate yield, without exceeding allowable drawdown, by dropping the pumping rate was unsuccessful. At this time it was concluded that pumping at the higher rate of 62.77 W s during the last step test induced siltation and compaction of materials on the well screens, commonly referred to as sand-bridging. This sometimes occurs where air lift development is used to develop larger diameter screen assemblies. In order to remedy this problem, further well development using a cable tool rig was proposed.



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6.4 Well Screen Re-development

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A cable tool rig was contracted from Fields Drilling Contractors Ltd. and was mobilized onto the well on October 4,2002. Cable tool development was undertaken using surge and bail methodology. During this development large quantities of sand and silt were extracted from the well, indicating that the original development by the air rotary tool method was insufficient. The large amount of silt and sand taken from the well screen area eventually led to “mining” of the strata around the well bore and the casing was noted to drop approximately 30 cm. Clean sand and gravel was trucked onto the site and compacted into the annulus around the well casing. The well was considered ready for a second yield test following the cable tool development.

6.4.1 Yield Test #2

The second yield test was conducted by PSP of Abbotsford, BC. Three 64-minute step pumping tests at 20.82, 31.36 and 38.67 L/s were undertaken on the well on October 8, 2002. The step test increments were gradually increased to allow the well to stabilize. A constant rate pumping rate was established utilizing the step test results. A 24-hour constant rate yield test was undertaken on the well on October 9, 2002. The constant rate flow was set at 39.18 L/s. Flow rates were measured using a flow orifice employing a 254 mm diameter pipe with a 152 mm diameter orifice plate. Groundwater was discharged to a ditched area in the valley floor approximately 50 m east of the new well. Water levels were measured using an electric tape. Drawdown curves and pump test data are detailed in Appendix B. An Aurora 8HFL submersible pump was set at 27.4 m bgs, between the 2 sets of screens, for the test. The reference point used at the top of the casing required adjustment in notation following the 30 cm drop during the well re-development. Following each step test and the constant rate yield test, well recovery was monitored. Yield test findings are shown in Appendix B.

During the pumping of the South Well, drawdown interference was monitored in the West Well, as well as a domestic well and irrigation well located 440 m and 600 m west of the pumping well respectively. The observation wells were completed to similar depths as the South Well. A summary of the yield test information is given in Table 8.

The client proposes to provide community water supply by combining yields from two wells at the site. A combined pumping test was conducted using both the new South Well, and the West Well, simultaneously pumping. The West Well was pumped utilizing the existing installed pump at its established rate of 37.1 L/s, while the new South Well was pumped at the constant test rate of 39.18 L/s. Drawdown in the two pumping wells was closely monitored during the combined test. The existing West Well was not disconnected from the system which provides water to the community reservoir. Due to this, the combined testing was limited to a duration of 64 minutes in order to negate overfilling of the reservoir. The combined test findings are presented in Appendix B. A summary of the combined yield test information is given in Table 8.



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6.5 PW#1 - Groundwater Sampling

Kala collected groundwater samples from the well head in laboratory prepared containers. Water quality samples were collected fca detailed chemical and bacteriological testing. Proper personal protective equipment and sampling materials were ensured. Chemical stabilization was monitored prior to sampling via pH, conductivity, turbidity and temperature probes. The mean groundwater temperature was 16°C as recorded by the field instrument. Field pH values averaged 7.5. The field instrument indicated that elevated turbidity levels were still present during the final stages of pumping, but decreased with time. Water samples were shipped in a cooler with ice packs and signed chain of custody forms to Norwest Labs (NWL) in Surrey, B'C. Detailed certificates of analytical chemistry are shown in Appendix C. Water quality findings are detailed in Table 6.

7.0 PROGRAM FINDINGS - SOUTH WELL

7.1 Subsurface Conditions

Well drilling intercepted alternating layers of silty clay, clay, and silt with minor gravel to 13 metres underlain by sandy gravel. Bedrock was intersected at 30.78 m. The coarse textured granular confined aquifer encountered between 21.64 - 30.78 m, is fan sediments associated with deposition from historic Vernon Creek. Fine sedim'ents overly the granular aquifer. The extent of the aquifer is large and includes the entire fan area. The drilling stratigraphy for the new South Well is summarized in Table 4.

7.2 Well Yield

For the purpose of estabhhing long term pumping rates for the new well, testing data from the second yield test performed October 9,2002 was utilized. Data from the first yield test performed September 24, 2002 was also reviewed to assist in these determinations.

A third pumping well was located on the Alto property at the time of testing. This well, located to the east of the new well, is th.e main well utilized in the community water supply. This well was still in operation during the yield test, causing fluctuations in drawdown as the pump activateddeactivated. Periods of East Well activation were noted on the pumping test logs. This effect was factored out prior to producing conclusions from data analysis.



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One local and two remote observation wells were monitored during the yield testing. The local well is the West Well of Alto Utilities located 25 m northwest of the new well. Of the more remote wells, one was a domestic well located approximately 440 m west of the new well, and the other was an irrigation well located approximately 600 m west of the new well. Both wells are located within the boundaries of the Aspen Grove Golf Course. The locations of these wells are shown on Figure 1. The remote observation wells displayed limited drawdown interference during step or constant rate pumping observations. The drawdown interferences are summarized below:

cia 9 (B 9 The West Well on the property has a diameter of 304.8 mm and a static water level of 2.44 m. This well underwent 2.09 m of drawdown interference during the constant rate yield test at 1060 minutes pumping from the new well at a flow rate of 39.18 L/s. The Domestic water well has a diameter of 152 mm and a static water level of 0.67 m. This well underwent 0.006 m of drawdown during the constant rate yield test at 1060 minutes pumping from the new well at a flow rate of 39.18 L/s. The Golf course irrigation well has a diameter of 203 mm and a static water level of 2.47 m. This well underwent 0.33 m of drawdown during the constant rate yield test at 1060 minutes pumping from the new well at a flow rate of 39.18 LIS.

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From the above data, it is concluded that interference of pumping from the new well on the domestic well is low. This may be due to the domestic well having not been completed in the same aquifer as the new well. The domestic well was completed to a depth of 16.4 m in an apparent upper aquifer positioned 6 to 7 m above the aquifer intersected in the South and West Wells.

Interference during the constant rate yeld test with the Golf irrigation well of 0.33 m indicates that this well is likely located toward the outer boundary of the cone of influence of the new pumping well.

Monitoring data from the West Well located on the Alto Utilities site was utilized in determining aquifer properties, and the proposed combined pumping rates for the new South Well and the West Well pumping simultaneously.

Kala utilizes Aquifer Test sof’tware developed by Waterloo Hydrologic Inc. for determining aquifer characteristics and potential sustainable yield calculations in situations where data has been collected from 1 or more pumping wells and 1 or more monitoring wells in a site area.

7.3 Sustainable Well Yield

For testing purposes a submersible pump was set within the blank section between the two sections of screen, at an intake depth of 27.4 m bgs. During the 20.82 L/s step test the water level underwent up to 2.04 m of drawdown over 120 minutes of monitoring. During the step test at 31.36 L/s the well level underwent 3.49 m of stabilized drawdown over 120 minutes of monitoring. During the step test at 38.67L/s the well level underwent 3.98 m of stabilized drawdown after 120 minutes of monitoring. Table 7 summarizes the results of the step testing.



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During the constant rate discharge test at 39.18 LIS, the water level was drawn down from a static water level of 1.83 m below top of casing (TOC) to a stabilized pumping level of 6.49 m below TOC at e580 minutes and was maintained to e1060 minutes. Minor variations of drawdown during the test are due to the East pump activation periods. A residual drawdown of 4.66 m represents approximately 30% of total available drawdown (TAD) as measured as the vertical distance between the static water level and the top of the well screen assembly (18.85 m). Following the constant rate yield test, well recovery was monitored. The well recovered to 90% of the pre-pumping level within 80 minutes of turning off the test Pump.

Well efficiency is estimated to be high as calculated using the Hurr-Worthington method, with very little to no head losses determined by step test data. This indicates that the well was properly developed and benefits from good radial flow properties.

Long term well yields are based on a number of variables, the most important being the hydraulic properties of the aquifer, availability of recharge to the aquifer and the number of, distance between and yield of other wells completed within the same or interconnecting aquifer. The South Well was tested on October 9 and 10,2002. Table 8 summarizes the results of the constant rate yield test.

Plots of drawdown versus time were assessed to determine the maximum sustainable pumping capacity of the new South Well. Yield test drawdown and recovery curves are shown as Figures 7 through 10. The well recovered to 90% within 80 minutes, suggesting good hydraulic properties, a moderate source of recharge and an aquifer of large areal extent.

Aquifer values of Transmissivity, Storativity and Hydraulic Conductivity were estimated to be high. Interference drawdown was observed in the West Well. Kala used the Cooper-Jacob Drawdown and Theis Constant Rate approaches to calculate aquifer transmissivity. These analyses gave transmissivity values ranging from 332 to 1200 m2/day. The aquifer comprises coarse textured granular materials.

Based on Ministry of Water, Land and Air Protection (MoWLAP) regulatory criteria the subject well capacity may be calculated using an extrapolation of the pumping level to a duration of 100 days of continuous pumping and projecting the total drawdown based on specific capacity of the well at t=144,000 minutes. The specific capacity is defined as the pumping rate divided by the total incurred drawdown. The 100 days of continuous pumping represents a period where groundwater recharge is minimal (summer and fall months in coastal areas and fall and winter months in the interior). Recharge is assumed to occur annually after 100 days, with winter rains or spring snow melt. This applies to wells where a perennial source of recharge was not intercepted during the pumping test.

A 30% safety factor, utilizing only 70% of total available drawdown (TAD) is used in calculating the well capacity. The well capacity is estimated by multiplying the well’s specific capacity after 100 days pumping by 70% of the available drawdown in the well. TAD for the new South Well (static water level to top of screens) is 19.8 m (21.6 - 1.8 m). Thus, 70% of total available drawdown is 13.86 m.



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The specific capacity of the well after 100 days of continuous pumping is estimated by extrapolating the observed drawdown behaviour near the end of the test. Drawdown in the South Well displayed periodic stabilization whenever the East Well was not pumping, and it is anticipated that full stabilization would have occurred without the East Well pumping influence, therefore the projection used for trending to 100 days will likely give conservative values for sustainable yield. The portion of the curve utilized in the 100 day pumping drawdown extrapolation is shown in Figure 8. The extrapolation to 100 days indicates that a drawdown of 8 m can be expected. The specific capacity averaged to 100 days is 4.9 L/s/m.

The long term capacity of the well is estimated at:

i Qloo d = 0.7 x spec9c capacity at IO0 days x available drawdown in the well Q l o o d = 0 . 7 x 4 . 9 L / s / m x 1 9 . 8 m Qloo ,j = 67.9 L/s

In estimating well capacity, the recovery data is also assessed. The plot of recovery from the constant rate yield test is provided in Appendix B. This plot of residual drawdown versus the ratio of time since pumping started over time since pumping stopped (t/t’) is projected to zero drawdown. The plot shows that zero drawdown would be reached before t/t’ reaches 1 indicating a possible “non-ideal’, or leaky, aquifer. This plot suggests that recharge is occurring within the aquifer during drawdown recovery.

Kala utilizes Aquifer Test software developed by Waterloo Hydrologic Inc. for determining aquifer characteristics in situations where data has been collected from one or more pumping wells and one or more monitoring wells in a site area. Results and descriptions of analysis utilized are provided in Appendix B. The analysis gave a range of Transmissivity (T) for the aquifer of 264 to 556 m2/day and range of Conductivity (K) of 26.2 to 60.9 d d a y .

The estimated capacity for the well should not exceed the flow rate at which the well was pump tested. The well was pump tested at 39.18 L/s. Also, the apparent yield is much greater than the desired maximum yield of 38 L/s as stated by the client. The well screen assembly maximum transmitting capacity at a manufacturers screen entrance velocity of 0.03 m/s is 71 L/s. The screen transmitting capacity is therefore estimated not to limit yield.

7.4 Well Yield, Combined Pumping South Well and West Well

The client desires to eventually implement combined pumping of both the South Well and West Well. Simultaneous pumping was limited to duration of 65 minutes due to concerns of overfilling the reservoir connected to the West Well. Drawdown was monitored at both pumping wells during this test.



1/7/2003 Page 12

Maximum yield for the combined pumping can be estimated by extrapolating 100 day pumping drawdown, as described in section 7.3 of this report. The extrapolation to 100 days (144,000 minutes) from a 64 minute pumping period may be excessive in this application; however, the drawdown curve for the South Well indicates that the rate of drawdown is greater during this time period than in later stages of pumping, therefore, the resulting extrapolation to 100 days from this part of the curve will indicate greater drawdown than would a longer pumping duration. This will result in conservative values of specific capacity for the duration.

Figures 9 and 10 show drawdown trend lines extrapolated to 100 days for that portion of testing where both wells were simultaneously pumping. Following the MoWLAP criteria, the specific capacity of each well is as follows:

South Well - specific capacity at 100 days is 39.18/8.6 = 4.56 L/s/m West Well - specific capacity at 100 days is 37.10A0.9 = 3.40 L/s/m

Based on the above calculations both wells can be simultaneously pumped using the current installations in the West Well (pumping rate of 37.10 L/s) and by installing a pump capable of 39.18 W s in the South Well, without creating excessive drawdown. The combined pumping rate is then 76.28 Lis.

7.5 Water Quality

Groundwater samples were collected from the South Well on October 10, 2002. The samples were submitted to Norwest Labs in Surrey, BC for extended potability and bacteriological analysis. The Certificates of Laboratory Analysis are shown in Appendix C.

All measured parameters met or were below the “Summary of Guidelines for Canadian Drinking Water Quality - April 2002” (SGCDWQ) with the exception of turbidity and total iron. The total iron concentration was 0.7 mg/L whereas the maximum allowable criterion is 0.3 mg/L. Iron is an aesthetic parameter and as the dissolved iron concentration was < 0.01 mg/L the iron is not solubilized and is therefore unlikely to promote concerns. During the sampling procedure, Kala monitored the water quality utilizing portable pH, temperature, conductivity and turbidity measuring equipment. It was noted that the turbidity levels were dropping but were still slightly elevated at the time of sampling. It is expected that turbidity will drop to acceptable levels, and that iron concentrations will also drop with turbidity during prolonged use of the well. Results of analysis are summarized in Table 6. Copies of certificates of analysis f?om Norwest Labs are provided in Appendix C.

The groundwater is a Ca-Mg-HC03 water type. Soluble nutrient and bacteriological concentrations were low suggesting little agricultural impacts to the aquifer at this time.


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1/7/2003 Page 13

8.0 WELLHEAD PROTECTION CONSIDERATIONS

Kala is in the process of delineating a preliminary Wellhead Protection Area for the AUL wells. Kala will provide a Wellhead Protection Area report under a separate cover.

9.0 CONCLUSIONS

Based on the office, field and laboratory program conducted in accordance with generally accepted hydrogeologic practices and the scope of services outlined in Section 2.0, Kala provides the following feasibility level conclusions for clientlowner consideration:

The Alto Utilities Ltd. South Well is completed within a coarse textured granular confined to semi-confined aquifer. It is the opinion of Kala that the new South Well will yield a sustainable 70 L/s. However as the well test pumping rate did not exceed 39.18 L/s Kala concludes that an operational pump capable of 39.18 L/s should be installed. The approximate pumping level with simultaneous pumping of West and South Wells at a combined 76.3 L/s will be 11 m bgs. The groundwater quality complies with the SGCDWQ-2002 guidelines with exception of total iron and turbidity. The groundwater is moderately hard, mineralized and alkaline. There are no existing or current sources of wellhead contamination within 100 m of the well. Kala will provide a Preliminary Wellhead Protection Area report under a separate cover.

RECOMMENDATIONS

Based on the conclusions detailed above and the scope of services described herein, Kala submits the following recommendations for clientlowner consideration:

Based on the above calculations Kala recommends the South Well be completed with a submersible pump set within the blank between the 2 well screens. The pump should be installed so that at least 1.2 m of clearance is available from the bottom of pump assembly to the top of lower well screen. The top of the lower screen is at a depth of 27.1 m bgs, placing the required bottom of the pump assembly at 25.6 m below ground surface. A pump capable of a rate of 39.18L/s should be utilized. Kala recommends sounding to the bottom of the South Well screen assembly prior to manufacturing the required pump installation apparatus, in order to verify depths below ground surface. A preliminary well installation diagram is included as Figure 6. Static and pumping water levels should be monitored on a continuous basis to determine aquifer long-term response to pumping.


i


1/7/2003 Page 14

If the well is not connected for a period of greater than one year a short yield test should be undertaken to verify well capacity. The pump installation contractor is responsible for checking all depths and well configurations prior to installing the operational pump. The use of stophtart pressure transducers to regulate water levels and flowrates is strongly recommended. Pump chambers and isolation valves should not be installed within a 3 m radius of the wellhead. A 19 mm inside diameter PVC educator pipe should be installed within the well to permit water level sounding. Water quality should be tested for soluble nutrients as well as bacteriological constituents twice per year. Currently groundwater disinfection is not required; however the need for disinfection should be based on regular sampling and bacteriological analysis.

CLOSURE

Please find attached a detailed description of the terms, limitations and constraints applicable to Kala involvement within this project and the uses of this report.

12.0 REFERENCES

Kala acknowledges the following documents and references in the preparation of this report:

Biogeoclimatic Zones of British Columbia (map), Ministry of Forests Research Branch, 1988. The Map Place Web Site, Ministry of Energy and Mines, (Bedrock geology, Surficial Geology). Quaternary Geology and Geomorphology, Nicola-Vernon Area, BC, Memoir 380, Geological Survey of Canada, 1984. Groundwater and Wells, 2nd edition, F.G. Driscoll, Principal Author and Editor, 1986. Groundwater, R.A. Freeze and J.A. Cherry, 1979. Strack, O.D.L., 1989, Groundwater Mechanics, Prentice Hall, Englewood Cliffs, New Jersey, 732 P. Theis, C.V., 1935, The relation between the lowering of the piezometric surface and the rate and duration of discharge of a well using groundwater storage, Trans. Amer. Geophys. Union, Vol.

Hantush, M.S. and C.E. Jacob, 1955, Non-steady radial flow in an infinite leaky aquifer, Trans. Amer. Geophys. Union, Vol. 36, pp. 95-100. Hantush, M.S., 1967, Growth and decay of groundwater-mounds in response to uniform percolation, Water Resources Research, Vol. 3, No. 1, pp. 227-234.

16, pp. 519-524.



1 /7/2003 Page 15

1

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0 Hurr, R.T. 1966. A new approach for estimating transmissibility from specific capacity. Water Resources Res. Vol. 2, pp. 657-664. Worthington, P.F. 198 1. Estimation of the transmissivity of thin leaky-confined aquifers from single-well pumping tests. J. of Hydrol., Vol. 49, pp. 19-30.

0


LIMITA TIONS AND C O N S T U N T S

Standard of Care

This report has been prepared in accordance with generally accepted hydrogeological and environmental practices. Where possible and applicable Kala has referenced and undertaken authorized commissions in accordance with governing regulatory guidelines. No other warranty, expressed or implied, is made.

Reporting

This report has been prepared for the specific site, design objective, development and purpose that was described to Kala Groundwater Consulting Ltd. (Kala) by the client and summarized in this document. The applicability and reliability of any of the findings, recommendations, suggestions, or opinions expressed in the report are only valid to the extent that there has been no material alteration to or variation from any of the said descriptions provided to Kala, unless Kala was specifically requested by the Client to review and revise the report in light of such alteration or variation.

Preliminary Site Investigations

Reporting is confidential 'intended to provide the client with a baseline assessment of environmental conditions within and immediately adjacent to the subject property. Reporting is based on data, information and materials collected during the performance of a PSI. A PSI is based solely on site conditions of the subject property during the time of site visits as described in this report. In evaluating a particular property Kala relies in good faith on historical information provided by individuals and agencies noted within the report. Kala does not warranty any property, explicitly or implicitly. Although every effort is made to verify the authenticity of pertinent information, Kala assumes no responsibility for any deficiency, mis-statement or inaccuracy contained within a report as a result of omissions, misrepresentation or fraudulent acts of the individuals or parties interviewed.

Groundwater Potential Evaluations and Proof of Water

Reports are prepared in accordance with generally accepted hydrologxal practices for the Owner/Client, and their authorized agents. No warranty expressed or implied is made. The applicability of this report is only valid to the extent that there has been no material alteration fiom any of the said descriptions provided to Kala, unless Kala is specifically requested by the client to review and revise t h s report in light of such alterations. Groundwater potential evaluations are based on a thorough review of maps, databases and published documents available at the time of the assessment, and a site reconnaissance. The conclusions provided by Kala do not preclude the existence of other aquifers. A properly supervised groundwater supply investigation is required to verify the presence or absence of suspected aquifers. If additional information or assessment findings arise which may alter the conclusions and/or recommendations of ths report Kala would be pleased to review and append our report where required. Proof of water assessments are based on pumping test information provided by others and interpreted by Kala unless otherwise noted. Groundwater sourced fiom fractured bedrock aquifers is dependant on the density and aperture of randomly and structurally oriented fractures and joints. Kala can not warranty the long term viability of domestic water wells completed withn fractured bedrock.


LIMITATIONS AND CONSTRAINTS

Use of the Report

The information and opinions expressed in this report are for the sole benefit of the Client. No other party may use or rely upon this report or any portion thereof without Kala’s express consent. Kala will consent to any reasonable request by the client to approve the use of this report by other parties as approved users. The ownership and copyright of this report remain the property of Kala, who authorizes only the client and approved users to make copies of the report, and only in such quantities as are reasonably necessary for the use of the report by those parties. The client and approved users may not give, lend, sell or otherwise make available the report or any portion thereof, or any copy of the report or portion thereof, to any other party without the express written permission of Kala.

Third Party Use of Kala Reports

The information provided within this report is for the exclusive use of the client/owner and their authorized agents. Third party use of this report or any reliance or decisions made on the subject information herein, is at the sole risk of the thrd party. Kala has no obligation, contractual or otherwise to any third persons or parties, using or relying on this information for any reason and therefore accepts no responsibility for damages incurred by a third party as a result of actions taken or decisions made on the basis of the subject information.

Complete Report

The report is of a summary nature and is not intended to stand alone without reference to the instructions given to Kala by the Client, communications between Kala and the Client, and to any other reports prepared by Kala for the Client relative to the specific site described in the report. In order to properly understand the suggestions, recommendations, and opinions expressed in the report, reference must be made to the whole of the report. Kala cannot be responsible for use by any party of portions of the report without reference to the whole report.

Interpretation of the Report

(a) Nature and Exactness of Soil Description: Classification and identification of soils, rocks and geologic units have been based upon commonly accepted methods employed in professional geotechnical practice. This report contains descriptions of the systems and methods used. Where deviations from these systems have been used they are specifically mentioned. Classification and identification of the type and condition of soils, rocks and geologic units are judgmental in nature. Accordingly, Kala cannot warrant or guarantee the exactness of the description of insitu ground conditions set forth in the Report.

(b) Logs of Test Holes, Pits, Trenches etc.: The test hole logs are a record of information obtained from field observations and laboratory testing of selected samples as well as an interpretation of the likely subsurface stratigraphy at the test hole sites. In some instances normal sampling procedures do not recover a complete sample. Soil, rock or geologic zones have been interpreted from the available data. The change from one zone to another, indicated on the logs as a distinct line, may be transitional. The same limitations apply to test pit and other logs.


LIMITATIONS AND CONSTRAINTS

(c) Stratigraphic and Geologic Sections: The stratigraphic and geologic sections indicated on drawings contained in this report are interpreted from logs of test holes, test pits or other available information. Stratigraphy is inferred only at the locations of the test holes or pits to the extent indicated by items (a) and (b) above. The actual geology and stratigraphy, particularly between these locations, may vary considerably from that shown on the drawings. Since natural variations in geologic conditions are inherent and a function of the historic site environment, Kala does not represent or warrant that the conditions illustrated are exact and the user of the report should recognize that variations may exist.

(d) Groundwater Conditions: Groundwater conditions shown on logs of test holes and test pits, and/or given within the text of this report, record the observed conditions at the time of their measurement. Groundwater conditions may vary between test hole and test pit locations and can be affected by annual, seasonal and special meteorological conditions, or by tidal conditions for sites near the seas. Groundwater conditions can also be altered by construction activity. These types of variation need to be considered in design and construction.

Samples

Kala normally disposes of all unused soil, rock, and sediment or bulk water samples after 90 days of completing the testing program for which the samples were obtained. Further storage or transfer of samples can be made at the owner’s expense upon written request.


TABLES

TABLES

Number of wells completed Well diameter and depth (m)

General location

I Table 1 - Groundwater Sumlv Investigation - Proiect Summarv I One well 304.8 mm diameter by 34.75 m deep

Vernon Creek valley, Winfield Static water level

Maximum sustainable flowrate Recommended pump settings

Water quality summary Treatment required

Disinfection required

1.83 m below TOC 39.1 L/s

Between 2 screen sets (bottom of pump at 23.69 m depth) Quality in compliance with SGCDWQ-2002

No No

Remarks

TOC = top of casing

This table must be considered with entire report not separately

Civic or general location Lodge Road - Winfield, BC Well ID South PW Easting

Elevation Northine

Approximate UTM coordinates

Table 3 -Water Well Completion Information

W328925 Approximately 4 10 m AMSL

5560680

304.8 mm x 34.05 m

Site conditions Aquifer classification*

Well diameter and depth

Completion type Casing thickness 0.350”

unconsolidated glaciolacustrine, glaciofluvial and morainal deposits, 4m bedrock

20.33 - 20.94 m 20.94 - 23.10 m

23.10 - 27.0 m 27.0 - 30.10 m

30.10 - 34.05 m

Neoprene and steel K-Packer and riser 304 mm telescopic diameter Type 304 Stainless Steel continuous

well screen, 0.060” slot 304 mm blank between screens

304 mm telescopic diameter Type 304 Stainless Steel continuous well screen, 0.250” slot

304 mm blank to bottom of hole in bedrock.

Well screen assembly

Well Drilling firm Yield Testing firm Date of completion October 10,2002

Field Drilling Contractors Ltd., Abbotsford, BC Precision Service and Pumps, Abbotsford, BC

Flat, open field 344 IB (13)

Turbidity 5.3 NTU (cl), Total Iron 0.7 mg/L (<0.3)

Table 8 - Pumping Test Information - October 10,2002

October 9 and 10,2002 Parameter South Well Date of test Step tests 3

Constant flow rate 39.18 W s Static water level 1.83 m (TOC) Duration of test 1060 minutes

Maximum drawdown 5.71 m Total Available Drawdown 18.85 m Percent available drawdown 30 %

Water level stabilization Well recovery

Estimated well transmissivity (m2/d)

4.66 m for 3 hours 90% within 80 minutes of pump shut off

Specific capacity 8.41 L/s/m

> 1000

Water samples and time Maximum sustainable yield (L/s)

for new South Well

Extended Potability sample collected October 9,2002

39.18

Estimated sustainable yield combined pumping, South and 76.28

TOC = top of casing

FIGURES

i

Legend: KALA GROUNDU'ATEX CONSVLllI?GLTD.

VERNON KAMLOOFS

207 - 220 4th AVENUE KAMLOOPS, BC, V2C 3N5 TEL. (250) 372-91 94 FAX (250) 372-9398

dotes: This diagram is for conceptual Drawn by: KDM

Date: Jan. 2003

Approved by. f&

purposes only. Locations and ~

configurations are approximate only.

V

Client: Alto Utilities

Project Description: Groundwater Supply Investigation Winfield, B.C.

Diagram: Site Location Diagram

Scale: As Shown Ref: 02392 File Ref: 02392 fig 1 .ppt Fig: 1

GOLF COURSE I

I

- KALA GRoLmrDWAlER ONSlLCllzNyLlD. - m N K4MLmm

207 - 220 4th AVENUE KAMLOOPS, BC, V2C 3N5 TEL (250) 372-91 CM FAX (250) 372-9398

Drown by: KDM

Date: Januory 2003 Notes This d q o m i, for comptuoi pw- w.

b c o t i i ond conriqurotims ore opproximote ody.

/ i

Legend: I

Client: Alto Utilities I

Project Description: Groundwoter Supply Investigation 1 Winfield B.C.

I

Diagram: Site Loyout Diogrom

I

/ ALTO UTILITIES SOUTH PROPERTY WELL EAST WELL

,

Site facing South

- KALA GROuNnWATER CONSULTING LTD. - VERNON KAMLOOPS

207 - 220 4th AVENUE TEL. (250) 372-9194

KAMLOOPS, BC, V2C 3N5 FAX (250) 372-9398 -

Notes: This diagram is for conceptual purposes Drawn by: KDM only. Locations and configurations are

approximate only. Date: December 2002

Site Facing West

Legend:


Project Description: Groundwater Supply Investigation Winfield, British Columbia

Diagram: Site Photos

Scale: NTS Ref: 02392 File Ref: 02392 3a.ppt Fig: 3a

General overview of Drill Site

Attempting to clean out discharge

207 - 220 4th AVENUE TEL. (250) 372-91 94

lotes: This diagram is for conceptual purposes only. Locations and configurations are approximate only.

KAMLOOPS, €IC, V X 3N5 FAX (250) 372-9398

D-n by: KDM

Date: Dec. 2002

Sample bags and set-up


Project Description: Groundwater Supply Investigation Winfield, B.C.

Diagram: Site Photos

Cyclone - at water bearing formation depth

Approved b . Scale: N.T.S. Ref: 02392 File Ref: 02392 fig 3b

Legend: - KALA GROWWAlER CWSVLlZVGLlD. - W O N XMdLoaPs

Fig: 3b

Screens

Scale: NTS

Upper Screen Lower Screen

Ref: 02392 File Ref: 02392 fig 3c.ppt Fig: 3c

Screen Assemblies to be Installed

Pumping Test Pipe and Orifice @ 400 usgpm

Pumping Well and Field Water Analysis , - KALA G R O W W A TER CONSULTJNG LTD. - VERNON KAMLOOPS

207 - 220 4th AVENUE KAMLOOPS, BC, V2C 3N5 TEL. (250) 372-91 94 FAX (250) 372-9398

Notes: This diagram is for conceptual purposes

Date: December 2002 only. Locations and configurations are approximate only.

Approved by: A

Legend:

Alto Utilities Client:


Scale I : 100 000

Notes: This diagram is for conceptual purposes only. Locations and configurations are approximate only.

BEDROCK GEOLOGY

Drawn by: KDM

Date: December 2002 Approved by: 7

I p l ~ a l I PLEISTOCENE TO RECENT - aluvium, till w] MIDDLE JURASSIC - granodioritic intrusive rocks

EARLY PROTEROZOIC TO PALEOZOIC - orthogneiss metamorphic rocks

b: lpicv .. 4 MIOCENE TO PLIOCENE - BASALTIC VOLCANIC ROCKS

PROTEROZOIC - METAMORPHIC ROCKS, UNDIVIDED

bd QUATERNARY - alluvium. till

. 0 3 6 9 Scale 1:126,720 K"ometres ? c I

SURFICIAL GEOLOGY MAP 1392A

FAN DEPOSITS - poorly sorted gravel, sand, silt, and clay

RILL COMPLEX - morainal deposits washed and channelled by meltwater

GLACIAL ENVIRONMENT MORAINAL DEPOSITS - till with minor sand, gravel, and silt

ALLUVIUM-FAN COMPLEX - sand, gravel, silt, and muck and peat

LACUSTRINE COMPLEX - silt, sand, and gravel

UNDIVIDED DEPOSITS - mainly glacial, fluvial, and lacustrine environment deposits with ridged or kettled topographic expression

Rock outcrop and areas of near-surface rock

k%A G R O W W A T E R CONSZTINGLTD. VERNON KAMLOOPS

Legend:



Diagram: Surficial 8, Bedrock Geology ~~

I File Ref. 02392 fig 4 ppt I Fig: 4 S c a l e AsShown I Ref 02392 I I I

I , I

, I

- . I

NO ISOLATION VALVE INSTALATION WITHIN 3U OF W L L

I

INSTALL STOP/START TRANSDUCER Set for SM.+h-sIcrl (APPROXIMATE) 3m obove pump-stop(

‘EDUCATOR PIPE-,-\

F

207 - 220 4th AVENUE TEL (250) 372-91 94

KAMLOOPS, RC, V2C 3N5 FAX (250) 372-9398

Nder Thu -om e for concepluol purpowr ody, Dram by: KDM b c o t i i ad cdiuroliis OR *le mly.

Date: December 2002

A p p r ~ e d by: /- Rdn- Detded draring from Stontee


Project Description: Groundwater Supply lnvestigotion Winfield, B.C.

Diagram: Proposed Well lnstallation Diagrom Scole: NTS Ref: 02392 File Ref: 02392 fig 6.dwg Fig: 6

CONDUIT TO BE FIXED WITH ZIP STRIPS TO EACH DISCHARGE COLUMN COUPLING. IMPORTANT TO ENSURE CONDUIT IS STRAIGHT TO ACCOMMOOATE

0 0 . . . e . . .

BOTTOM OF 30Smm CASING APPROXIMATELY 79.5m -

N Q E L BENTONITE SEAL AROUND K L L CASlNC TO BE REPLACED AFTER COMPLETION

WELL ELEVATIONS ARE TAKEN FROU AN ASSUMED GROUND ELEVATION OF lOOm

25mm SDR2l PVC CONDUIT c/w END CAP AND 6x9mrn HOLES (1 IN CAP, 3 f 15Dmrn ABOM CAP AND 2 AT TOP OF CONDUIT) DRILLED AS DIRECTED BY ENGINEER. FIX AT TOP OF CASING

MAASS P m s s ADAPTOR

lOOmm PUMP DISCHARGE ,100X2DD SCREMD FLANGE

200mm FLANGExHUB AOAPTER

‘3D5mm WELL CASING (EXISTING) I - K PACKER RISER PIPE Ill-

- 2 . l m 60 SLOT SCREEN 3D5mm TELESCOPIC

AT BOTTOM OF

76.97 m (bottom of screen)

lOOmm FLOMATIC CHECK VALVE MODEL 80 DI. - LOCATE YllTHlN l m OF

PUMP SET INTO 3.97m BLANK BETWEEN SCREENS

PUMP INLET SCREEN

74.2 m (bottom of m o b )

73.00 m (25.8m BELOW GROUND) (top of screen)

BOTTOM OF PUMP ASSEMBLY A T 74.2m

t-- 3.05m 250 SLOT SCREEN 305mm TELESCOPIC

69.95 m (bottom of screen) - 3.96m BLANK

F HOLE AT 6599m

PUMP

EXCAVATlON

1 I I

I

I

i I I

I I

I

I

t I I

1

Type of Water Quallty Use Concerns Aq. Materlals Ciasslflcatlon Value 'Ize Productlvlty Vulnerability Demand

No Location

344 Laketo Gravel 9 High Moderate High Multiple None It3 13 Ellison Sand and

Wood Lake

Quantlty Concerns

None

a- KALA GROUNDWATER C O N S l K m G L m . 7 VERNON KAMLOOPS

207 - 220 4th AVENUE TEL. (250) 372-91 94

KAMLOOPS, BC, V2C 3N5 FAX (250) 372-9398

Legend:

Client:

Project Description: Groundwater Supply Investigation Winfield. BC

Alto Utilities

Notes: This diagram is for conceptual purposes only. Locations and configurations are approximate only.

Ref: http://wlapw,gov.bc.calwatlaquifersl

Drawn by: KDM

Date: Dec. 2002 Diagram: Aquifer Mapping Diagram

Approved by: e 6. Scale: N.T.S. Ref: 02392 File Ref: 02392 fig 5.ppt Fig: 5

. L -.

KALA GROuhrDWATER CONSULTLVGLTD. VERNON KAMLOOPS

207 - 220 4th AVENUE TEL. (250) 372-91 94


Notes: This diagram is for conceptual purposes Drawn by: KDM only. Locations and configurations are approximate only. Date: Dec. 2002

Alto Utilities - Combined Yield Test and South Well Constant Rate Yield Test - 10/09/2002

Legend:


Project Description: Groundwater Supply Investigation Winfield, BC

Diagram : Yield Test Plot

Scale: N.T.S. Ref: 02392 Fig: 7 File Ref: 02392 fig 7.ppt

1 10

Winfield, BC Time (min)

100 1000 10000

0

1

2

3 A

E Y

E

U g 4 3 e n 5

6

7

8

- well:

lutes

Nell: ecov I min

m

-

well: 1 mir

... . u- . b..

KALA GROUND WATER CONSUL TLVG L TD. VERNON KAMLOOPS

207 - 220 4th AVENUE TEL. (250) 372-91 94


Notes: This diagram is for conceptual purposes Drawn by: KDM

Date: Dec. 2002

Approved by: f&. only. Locations and configurations are approximate only.

10

Legend:



Diagram: Yield Test Plot

Scale: N.T.S. Ref: 02392 File Ref: 02392 fig 8.ppt Fig: 8

Alto Utilities - South Well - 100 Day Pumping Extrapolation- 1010912002 Winfield, BC Time (min)

100 1000 10000 100000 1000000

4 4.2 4.4 4.6 4.8

5 5.2 5.4

E 5.6 c 5.8

6.2 6.4

ta 6.6 6.8

7 7.2 7.4 7.6 7.8

8

n

Y

M A G R O W W A T E R CONSVLllhG LTD. - VERNON KAMLOOPS

207 - 220 4th AVENUE TEL. (250) 372-91 94


Notes: This diagram is for conceptual purposes Drawn by: KDM only. Locations and configurations are approximate only. Date: Dec. 2002

Legend:



Diagram : Yield Test Plot

Scale: N.T.S. Ref: 02392 Fig: 9 File Ref: 02392 fig 9.ppt

.. .- . .

Alto Utilities - South Well - Combined Rate Yield Test S and W well- 1010912002 Winfield, BC Time (min)

10000 100000 1000000 10 100 1000 5 -

)r 100 5.5

6

I C

z 7 U 3 E 7.5

Y

8

8.5

9

I

5

5.5

6

6.5

7

207 - 220 4th AVENUE TEL. (250) 372-91 94


Notes: This diagram is for conceptual purposes Drawn by: KDM Date: Dec. 2002

Approved by: p-6, only. Locations and configurations are approximate only.

h 7.5 E - 8



Diagram: Yield Test Plot

Scale: N.T.S. I Ref: 02392 File Ref: 02392 fig 1 O.ppt I Fig: 10

0 3 8.5

3 9 2 a 9.5

=

10

10.5

11

11.5

12

1

Alto Utilities -West Well - Combined Rate Yield Test - 1010912002 Winfield, BC

Time (min)

10 100 1000 10000 100000 1000000

Legend: KALA GROLrNDWATER CONSUETNGLTD. VERNON KAMLOOPS

APPENDIX A

Definition of Terms Driller’s Log

Grainsize Distribution Curves

!

SAND

~ rnidlum coarao

tine

SILT (non ploetic) or - CLAY (plaitic)

I I MODIFIED UNIFIED CLASSIFICATION SYSTEM FOR SOILS

LABORATORY CLASSIFICATION MAJOR DIVISION SYMBOL SYMBOL CODE TY PlCAL DESCRIPTION

GRAPH

r

I

I ::B",",",", :ggRp, oDoR' AND OFTEN

50 I I I I I , I * , -

ORANGE PEAT AND OTHER HIGHLY ORGANIC SOILS HIGHLY ORGANIC SOILS - SPECIAL SYMBOLS

I I / I

35 - 20 tom* LIQUID LIMIT l % l 4 . 7 5 m m Z.OOmm ' 2 . 0 0 m r n 425yrn 20 - IO l i t t l i 1. ALL SINE SIZES MENTIONED ON THIS CHART ARE U.S. STANDAID, A.S.T.M. 4 2 5 rn 7 5 y m 1.11.

IO - I trace 2. BOUNDARY CLASSIFICATIONS POSSESSING CHAKACTERISTICS OF TWO CROUPS ARE GIVEN COMBINED CROUP SYMIOLS. E.G. GW-GC IS A WELL GRADED GRAVEL SAND MIXTURE WITH CLAY BINDER BETWEEN 5 % AND 11%.

7 5 y m

Roundod or rubmundod COBBLES 76 rnm to 203 mm BOULDERS > 203 mrn

Not rounded I Kala Groundwater Consulting Ltd. I Vernon Kamloops I ROCK FRAGMENTS > 76 mrn

ROCKS > 0.76 cub% matre I

in valuma

\ '.

TELEPHONE: 857-2266 e* FIELD DRILLING CONTRACTORS LTP 3 Box 841;Aldergrove, B.C. V4W 2V1 '

4r

DAILY LOG SHEET

I 4-

customer: Shift

Job No.: A- 7077'6 Address:

I

Hole No.:

Phone: Rig. No.: L~ SHOP TRAVEL TIME RIG HOURS HOURLY DEVELOP STAND BY TOTAL

C$ /'-

Hole Size: Finish:

MATERIALS:

Static Water Level: 2. 6.

3. 7.

4. 8.

Develop: Hrs.

GAS LITRES

DIESEL LITRES APPROVED

FIELD DRILLING CONTRACTORS LTD.

//. S’- I / . s- CI-

L*%\.$J / i 1’ ) I . 5-

LOG OF FORMATIONS io le Size: Start: / 2 I ‘ Dia. Ft. I

TELEPHONE: 857-2266

-’

Box 841, Aldergrove, B.C. V4W 2V1 -4;. -

CASING TALLY

DAILY LOG SHEET

TO FROM

Hole Size: Finish: Dia. Ft.

Casing Pulled: Dia. Ft..

Stick-Up:

Casing Length:

Hole Depth: (from ground level)

Drive Shoe: No: 0 Yes: 0

Number of Screens:

Slot Size: ? O b

Slot

Slot

Screen Length:

I Top at: Ft. In.

Bottom at: Ft. In.

Riser: Ft.

Tailpipe: Ft. K. Packer 3

B.Bottom

Rate: GPM.

Pump Setting: Ft.

Static Water Level: Ft.

Develop: Hrs.

\ APPROVED ‘\

, .

MATERIALS:

1. 5.

2. 6.

3. 7.

4. a.

GAS LITRES

DIESEL LITRES I

ilELD DRILLING CONTRACTORS LTD.. Box 841, Aldergrove, B.C. V4W 2V1

;ASING TALLY

TELEPHONE: 857-2266

TO FROM

DAILY LOG SHEET

Address:

Job No.: -- 7 0 7 7 - d Hole No.:

Phone. Rig. No.: &

I I I I I I I ,I

Hole Size: Start: ?- Dia. Ft.

Hole Size: Finish: Dia. ' Ft.

Casing Pulled: ' Dia. Ft.

Stick-Up: Ft.

Casing Length:

I

Ft. - (from ground level) Hole Deoth: Ft.-

- Drive Shoe: No: 0 Yes:

PJ-k'

Number of Screens:

Slot Size: Slot Slot

Slot Slot

Screen Length: Ft. In.

Top at: Ft. In.

Bottom at: Ft. In.

Riser: Ft.

Tailpipe: Ft. K. Packer 0

B. Bottom 0

Rate: ' GPM.

Pump Setting: Ft.

Static Water Level:

Develop: Hrs.

I LOG OF FORMATIONS

DEPTH I I

Y

/ / GAS LITRES

DIESEL LITRES

i

140=0.950mn (0.037") Recommended Slot Size from above sieve: 0.040"

Project Alto Utilities Date 9-May-02 Location Winfield Project No 2392 Tested by PG Well PW2002

Depth 58-60 Initial wt. 0.00 Moisture Content 0.00 Dried wt. 2715.00 Washeddried wt. 0.00

0.00 Finer #200 0.00

I I I I I I I I I I

SILT SAND GRAVEL CLAY

100.00

90.00

80.00

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00 e x

PARTICLE DIAMETER mm

IVisual identification SandSilt gravel with clay seams

I

-

..

4

GRAVEL CLAY SILT

0

I

90.00

80.00 I

E 60.00 - E

5 40.00 -

30.00 -

10.00 ,

2 , 20.00 0.00 L! 0 :

I - 8

I

0 0

0 0 I 9 # I 2 PARTICLE DIANIETER mm

I

[Visual identification Sand/Silt gravel with clay seams

D40=2.40 (0.094") I Recommended Slot Size from above sieve: 0.100''

Project Alto Utilities Date 9-May-02 Location Winfield Project No 2392 Testedby PG Well PW2002

Initial wt. 0.00 Moisture Content 0.00 Dried wt. 4745.00 Washeddried wt. 0.00

Depth 66-68


100.00

90.00

80.00

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00 - x I 0 0

: 9 9 I 1 ; . o

PARTICLE DWMETER mm

IVisual identification I Sand/Silt gravel with clay s e m

D40=1.50 (0.06") I Recommended Slot Size from above sieve: 0.060" 1

i

CLAY SILT SAND GRAVEL

I

.+ 8 I 0,

0

I I I

0 9 w


0 2

]Visual identification Sand/Silt gravel with clay seams

D40=1.10 (0.043”) I Recommended Slot Size from above sieve: 0.040”


Depth 72-74 initial wt. 0.00 Moisture Content 0.00 Dried wt. 3570.00 Washed/dried wt. 0.00

0.00 Finer $200 0 00

i


90.00

80.00 I I

t;

8 40.00

2 30.00

I

0.00 c : z , w x

IVisual identification Sand/Silt gravel with clay seams -

D40=1.75 (0.069”) I Recommended Slot Size from above sieve: 0.060”

!


100.00

90.00

80.00

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00 d x

I

I

i 1 z 0

0 , I I 9

I


0 2

IVisual identification I D40=2.10 (0.083”) I

Sand/Silt gravel with clay seams

Recommended Slot Size from above sieve: 0.080”


I I I I

I

I 1

1

GRAVEL CLAY SILT S A N D I I I

100.00 T--+

50.00

30.00

20.00

10.00

0.00 3 : Z I

0 9 8

I


0 ;

]Visual identification SandSilt gavel with clay seams

D40=2.40 (0.094") I Recommended Slot Size from above sieve: 0.080"

Well PW2002


100.00

90.00

80.00

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00

I I


/Visual identification I D404.38 (0.015") I

SandSilt gravel with clay seams

Recommended Slot Size from above sieve: 0.010"

J


100.00 : I

90.00 -

80.00 - : 70.00 - I

60.00 -

50.00 -

40.00

30.00 -

20.00 - : 10.00 -

0.00 I

I I

I I

I I

i j I

1

I I

1 I

I I '

I I I

0 z 9 0 w


0 ;

IVisual identification I D40=0.49 (0.019") I

Sand/Silt gravel with clay seams

Recommended Slot Size from above sieve: 0.010"

Project Alto Utilities Date 9-May-02 Location Winfield Project No 2392

Well PW2002


100.00

80.00

, 30.00

10.00

*O.OO i 1 0.00 L-

o : 8 ,

1 I I

I I I

0 9 c


IVisual identification Sand/Silt gravel with clay seams



DeDth 90-92

40.00

30.00 -

20.00 -

10.00 -


0 00 Finer #200 0.00

-+ ;

: ;

I

I

I

I

I 200 I 5000 I 0.00 I 0.00 1 0.00 I 100.00

?

50.00 1.26 100.00 I 0.00 Total I 3970.00 I 100.00 1


i

I

100.00

90.00

80.00

70.00

~ I I

l//i I I

8

t

E: 0

0 I I I 9


0

IVisual identification I I D40=4.00 f0.158") I

Sandsilt gravel with clay seam ~ ~~~ ~

Recommended Slot Size from above sieve: 0.150" I

Project Alto Utilities Date 9-May-02 Location Winfield Project No 2392

Depth 94-96 Testedby PG Well PW2002


GRAVEL CLAY SILT SAND

d I I 8

0 z 9 I 0 - PARTICLE DIAMETER mm

IVisual identification Sand/Silt gravel with clay seams

D40=11 .OO (0.433") I Recommended Slot Size from above sieve: 0.250"

i

Project Alto Utilities Date 9-May-02 Location Winfield Project No 2392 Testedby PG Well PW2002

Depth 98-100 Initial wt. 0.00 Moisture Content 0.00 Dried wt. 3440.00 Washeddried wt. 0.00


100.00

90.00

80.00

70.00

60.00

50.00

40.00

30.00

20.00

10.00

0.00 9 0

z 0

0 , I I 9 -


0 2 0 x 2

IVisual identification I Sand/Silt gravel with clay seams


APPENDIX B

Definition of Terms Yield Test Data

Descriptions of Analysis Utilized

!

f

Aquifer:

Aquiclude:

Aquitard:

Artesian well:

Available Drawdown:

Drawdown (S):

Flowing artesian well:

Permeability:

Production Well (Pw):

Pumping Rate (Q):

20 year Pumping Rate (Qlo):

Residual Drawdown:

Specific Capacity (Qls):

Static Water Level:

Storativity:

Testwell 0:

TU:

Transmissivity:

Water table:

Well Yield:

Definitions of terms

A mass of material containing water which can be removed by means of wells.

A geologic formation, group of formations or part of a formation through which virtually no water moves

r

A saturated, but poorly permeable bed, formation, or group of formations that does not yield water freely to a well or spring. However an aquitard may transmit appreciable water to or from adjacent aquifers.

A well which the water rises above the top to the aquifer in which it OCCUK.

A volume of water measured from static water level to top of riser above screens.

The distance between the static water level and the surface of the cone of depression

A well in which the water overflows at ground surface.

A measure of the ability of a material to permit the passage of water. Gravel has high permeability; clay ha a very low permeability.

Well producing water forconsumption.

Constant or step pumping rate; typically,in Us. or USgpm

Maximum recommended pumping rate based on well equilibrium estimations

The difference between the non-pumping water level and the level at a given time (t) after the pumping was stopped.

Well discharge expressed as rate of yield per unit of drawdown ( ie: USgpmlft, Ydm).

The level of water in a well that is not being affected by withdrawal of groundwater.

The volume of water that the aquifer releases from storage per unit surface area of aquifer per unit loss in the component of hydraulic head normal to that surface.

Well used for exploratory purposes to determine if a water bearing zone is present

Compact mixture of clay, sand and stones often called hardpan or boulder clay. Till is deposited by glacien.

The rate at which water is transmitted through a unit width of aquifer under a unit hydraulic gradient; generally expressed in m%cc.

Level below which rock, gravel or other material is saturated.

The volume of water discharged From a well in gallons per minute or cubic meten per day.

H

Unconfined Aquifer

5.62 5 2 I 8.06

8.31 5.87 6

7 3.5 8.39 5.95

8 ’ 4 8.45 6.01

! ~- ~- _ _ ~ . -~

-.- - . ~ .. . . . . . . . . . . . . . - .~ .- ~~

3 -

_ _ _ _ _ ~ _ ~ ~ _ . . . . . . . . . _ _ _ _ _ _ ~ ~

Location: Winfield I Screen length: 9.14 [m] I

~- ~

9 1 4.5 I 8.52 i 6.08 I

-1 10 5 8.56 6.12

11 j 6 8.64 6.20

~_

14 I 9 8.82 6.38

15 10 8.86 6.42 -

6.57

16 1 12 8.94

17 ~ 14 ~ 9.01 1

2 1

___ - ... . . ...

____________.____ . . ...

6.64 18 16

19 18 ! 9.13 6.69

20 20 9.17 6.73

9.21 6.77

22 ~ 24 i 9.26 6.82

_ _ _ _ ~ _ _ _ _ _ ~ ~

9.08 i

~ - - . ~ -

r_ -

21 22 !

0.5 I 7.01 I 4.57

Kala Groundwater Consulting Ltd. 207-220 4th Avenue

Kamloops, British Columbia

Ph: 250-372-91 94 Fax: 250-372-9398

Data observed at: West Well

Distance from PW: 26.69 [m]

Depth to static WL: 2.44 [m]

_____ _ _ ~ _ _ _ - - _ _ _

I Pumping Test Data Report

Project: Alto

No: 02392

Client: Alto Utilities Ltd. Page 1

Pumping test: constant rate

Pumping well: South

Screen radius: 0.14 [m]

. . - - - .- .

- . ~- - ._ ..__ _ _ - __ _.

Test performed by: Precision

Date: l o l l 01

Casing radius: 0.15 [m]

Aquifer thickness: 9.14 [m]

Time [min] Depth to WL [m]

1 0 2.44

Drawdown [m]

0.00

3

4

I

1 7.55 5.1 1

1.5 7.87 I 5.43

7

13 1 8

12 ~

8.72 6.28

8.77 6.33

~

23 I 26

24 28

30

26 35

27 40

45

25 I

28 I

9.30 6.86

9.32 6.88

9.36 6.92

9.42 6.98

9.45 7.01

9.51 7.07

29 50 9.57 7.13

30 1 55 9.61 7.17



Ph: 250-372-91 94 Fax: 250-372-9398

Pumping Test Data Report

Project: Alto ~-

No: 02392

Client: Alto Utilities Ltd. ~ Page2


Depth to static WL: 2.44 [m] ~. .


Pumping well: South

Screen radius: 0.14 [m] _ _ .___-__ - __ ._ _ _ -

I Pumping test: constant rate

Location: Winfield


Screen length: 9.14 [m]

Casing radius: 0.15 [m] --__ - --_ . __ - _ _ . -

Date: 1011 01 Aquifer thickness: 9.14 [m]

Time [min] Depth to WL [m] Drawdown [m]

68.5 I 4.58 2.14 I

37 1

32 I 65

1

9.68 7.24

33

34

35

I 46 I

66 4.97 2.53

67 4.74 2.30

67.5 4.67 2.23 1

79

44 ~ 75

45 77

4.54

4.37 1.93

4.51 2.07 ~~

2.10

81

48 1 83 47 I

1 4.56 2.12 I 4.57 2.13 I

I 49 ! 85

50 j 120

4.57 ~ 2.13 I

4.69 I 2.25 I

1 I 2.24 51 I 130 ~ 4.68

4.66 2.22 52 I 140

4.66 2.22 53 150

4.66 2.22 54 ~ 160

55 190 1 4.67 2.23

I

_ _ ~ _ , ~~ ~ - ~ _ _ _

~ .. .~ ___ -. - ~. . ________

~~ ~- ~ ~ ~ . - ~~~

i

56 I 250 I 4.23 i 1.79

57 280 4.29 1.85

58 I

61

62

310 I

400 4.61 2.17 I 430 4.70 2.26 -i

4.63 I 2.19

59 I 340 I 4.33 I 1.89 I 370 I 4.31 I

__

1.87



Ph: 250-372-91 94 Fax: 250-372-9398 1 - I


Project: Alto

No: 02392

Client: Alto Utilities Ltd. Page 3

. . . . . . . .- . .

. . ~. .

.. - ~

~ _ _ - ~~ . ~- .




Location: Winfield

1 Test performed by: Precision I Casing radius: 0.15 [m]


Pumping well: South



I Date: I I

Time [min]

63 460

1011 01

Depth to WL [m] Drawdown [m]

4.75 2.31

1 Aquifer thickness: 9.14 [m]

69 640

70 670

4.40 1.96

4.40 1.96

2.33 64 490 ! 4.77

65 520 4.79 ' . 2.35

66 550 4.45 2.01

1.98 67 580

68 61 0 I 4.40 I 1.96

- ~ .~ _ ._ __ .~ .. .- . . ~~ .- .- - ~ -~ ~

- - . - __-

1 _.____ 4.42

I

71 ' 700

72 730

73 760

74 790

4.40 1.96 1 4.40 I .96 I

4.74 2.30

4.64 2.20

820 I 4.80 I 2.36

j 4.83 2.39 850

880 4.87 2.43 I

I 82 1030 I 4.66 I 2.22 I 1060 I 4.53 I 2.09 I ~~

1064 I 3.57 i 1.13

t



Ph: 250-372-9194 Fax: 250-372-9398

I Data observed at: South

Distance from PW: 0 [m]


I Location: Winfield


Project: Alto

No: 02392


Pumping well: South


Screen length: 9.14 [m] -. _ _ -

Client: Alto Utilities Ltd.

1 0

2 0.5

3 1 1

--

1.83 0.00

5.29 3.46 -I

5.52 ' 3.69 I

- . . ~~ . .~ .... L.- . i .. .. . . . .

4 j 1.5

5 1 2

Casing radius: 0.1 5 [m]

Date: 1011 01 I Aquifer thickness: 9.14 [m]

Test performed by: Precision __ . - . - - . - -

5.72 3.89

5.88 4.05

Depth to WL [m] ! Drawdown [m] I I Time [min]

i 15 1 9 6.57 4.74 I I 16 1 10 I 6.63

-

6 2.5 6.00

7 3 6.08

8 1 3.5 6.17 I 4.34

4.80 I

I

I I 4.70

7 6.47 13 ,

14 I 8 I 6.53 I I

27 1 40 7.21 5.38

I , I

28

29

12 I 6.68 I 4.85 I

45 7.25 5.42 I

50 7.29 5.46 I

30

31

16 I I 19 I I

55 7.34 5.51

60 7.35 5.52

6.82 I 4.99



Ph: 250-372-9194 Fax: 250-372-9398 I I I


Project: Alto

No: 02392

Client: Alto Utilities Ltd. Page 2 -- ___._ - ___

Data observed at: South

Distance from PW: 0 [m]


Location: Winfield

__

_

I Casing radius: 0.15 [m] I I Test performed by: Precision

- ... - ...~ 1 Pumping test: constant rate

Pumping well: South


__ --_ ~ ~ . . .. . . - ~ .. ~

_ _

Screen length: 9.14 [m] I

1 Date: I

~ -

32 65 7.41 5.58

34 I ao 6.69 4.86

33 70 6.58 4.75

1011 01

42 160 ! 6.80

43 I 190 6.81

I ~~~ I Aquifer thickness: 9.14 [m]

4.97

4.98

I I Time [min] I Depth to WL [m] I Drawdown [m] 1

6.43

6.38 j 4 1 220

45 I 250

4.60

4.55

35 ~ 90 ~ 6.71 I 4.88

36 100 I 7.54 5.71

5 4 1 520 I

55 ~ 550

56 I 580

~ _ _ -

-

4.99

4.97

41 ' 150 6.82 4.99

-

6.97 37 110

38 120 6 85 - - - _____ - - - -

39 130 6.82

40 ~ 140 6.80 I

6.71 4.88

6.53 4.70

6.49 4.66

57

58

610 6.49 4.66

640 I 6.49 4.66

[ 46 ~ 280 I 6.55 I 4.72

59 I 670

60 1 700

310 I 6.74 I 4.91

6.49 4.66

6.49 4.66

340 i 6.40 I 4.57

I

i

~~

Data observed at: South

~


Pumping test: constant rate - -~ _.__

~


Project: Alto


Location: Winfield


Date: 1011 01

Kamloops. British Columbia

Ph: 250-372-91 94 Fax: 250-372-9398

- ____ -





- ._ ~ _ _ _ _ _ _ _

I

No: 02392


I Depth to WL [m] I Time [min]

63 790 6.83

Page 3

Drawdown [m]

5.00

64

65 5.16

820 6.96

850 6.99

880 !

76

77

7.02 I 5.19

1062 3.08 1.25

1062.5 i 3.08 1.25

910 I 7.03 j 5 20 I 67 ~

68 940 I 664 4 81

6.61 4.78 69 970

5 13 6 96 70 1000

71 1030 6 67 484

I 6.62 4.79 72 1060 I

~ __ ~

- ._ _ _ ~ -

- _ _ _ -~ ~ -

-

78

I 73 I 1060.5 I

1063 ~ 3.02 I 1.19

3.54 i

I

1.71

~~

92 1080

93 1085

I 1.34

74 ~ 1061 I 3.38

3.17 75 ~ 1061.5 I

0.76

2.64 I 2.59 I

I 1.12 80 ~ 1064 I 2.95

2.91 1.08 81 1064.5

2.89 1.06 82 1065

83 1066 2.85 I .02

8 4 1 1067 2.87 1.04

i ~~

...__ ~~~~ ~~ . . . . . - . -7-

~ ~~ .. .. _____ - - . . . - . . . . . . . . . . . -~ ~. . . -. - --

-_-___-_~ _~___.. -. - -

87 I 1070 I 2.78 I 0.95 I 88 T 1072 I 2.77 I 0.94

89 I 1074 I 2.73 I 0.90 I 1076 I 2.70 0.87

1078 I 2.67 I 0.84 I

c

i

Karnloops, British Columbia

Ph: 250-372-91 94 Fax: 250-372-9398

2ata observed at: South

listance from PW: 0 [m]

Iepth to static WL: 1.83 [rn]

-0cation: Winfield

rest performed by: Precision

late: 1011 01

__ ~

.~___ ~


-

No: 02392

Client: Alto Utilities Ltd. ~ Page4


Pumping well: South

Screen rad= 0.14 [m]


Casing radius: 0.1 5 [m]


-~~ . - ~

- _ ~ . ~ -

~. . I --- - ...

I I

Time [min] Depth to WL [m]

94 1090 2.54


Project: Alto

Drawdown [m]

0.71

95

96

97

1095 2.50 0.67

1100 2.46 0.63

1105 2.43 0.60

98 1 1110

99 ~ 1115 ~~ ~

100 1120

2.40 0.57

2.37 ! 0.54

2.35 ! 0.52

YIELD TEST - South Well Recovery ut' Projection

tit' (min)

0

0.2

0.4

-0.6 E Y s

0.8 3 E n m 1 - 3 U tn .- 2 1.2

1.4

1.6

1.8

1 .o 10.0

\ .... - .

100.0 1000.0 10000.0

1 0.5

1

1.5

2

2.5

3

3.5

4

E 4.5

c 5

n 2 6

6.5

7

7.5

8

8.5

9

9.5

I O

h

v

2 $ 5.5

Alto Utilities -West Well - Combined Rate Yield Test - 1010912002 Winfield, BC

Time (min)

10

I.. --!--I -

100 % well recovery at t = 23 mi lutes --L - . - -

-

100



Ph: 250-372-9194 Fax: 250-372-9398

1.448

2.896

4.344

5.792

7.24

Test name:

Pumping Test Analysis Report

Project: Alto

No: 02392


constant rate (Cooper-Jacob Tme-Distance-Draw dow n)

ffr' [rrin/d] 1 5 3 1 5 2 1E-I 1 E O 1 El 1 Et2 1 E 3

constant rate

Analvsis method: CooperJacob Time-Distance-Drawdown

0 West Well South

Analvsis results: Transmissivity:

Storativity :

2.39E+2 [m*/d]

1.53E-3

Conductivity: 2.62E+1 [mld]

Test Darameters: Pumping well: South Aquifer thickness: 9.14 [m]

Screen radius: 0.14 [m] Confined aquifer



Discharge rate: 39.18 [I/s]

Comments:

Evaluated by:

Date: 1/3/2003



Ph: 250-372-91 94 Fax: 250-372-9398

0

0.875

- 1.749

2 E I

c

U 3 I n

2.624

3.498

4.373

Test name:


Project: Alto

No: 02392


combined (Cooper-Jacob Tim-Daw dow n)

Time [rrin] 1 10

u u u

combined

Analvsis method: CooperJacob Time-Drawdown

West Well 1 South 0 GolfOBS

~ ~~

Analvsis results: Transmissivity: 3.32E+2 [m2/d] Conductivity: 3.63E+1 [m/d]

Test parameters: Pumping well: South Aquifer thickness: 9.14 [m]

Screen radius: 0.14 [m] Unconfined aquifer


Casing radius: 0.15 [rn]

Discharge rate: 76.28 [I/s]

Comments:

Evaluated by:

Date: 1/3/2003

207-220 4th Avenue


Ph: 250-372-91 94 Fax: 250-372-9398

Kala Groundwater Consulting Ltd. Pumping Test Analysis Report

Project: Alto

No: 02392


constant rate (Hantush-Jacob)

1 IU 1E-I 1EO 1 E l 1E+2 l E 3 1 E 4 1 E 5 1 E 6 1 E 7

1 E 2

1 E+l

1 E O

-I 2 i z

1 E-I

1 E-2

1 E-3

South West Well

I El

1 E O

In - 3

1GI -

1 E 2

1 E 3

1E-7 1E-6 1E5 1E-4 1E-3 152 1E-1 I E C O t [mn]

Test name: constant rate

Analvsis method: HantushJacob

Analvsis results: Transmissivity: 5.56E+2 [m*/d] Conductivity: 6.09E+1 [mld]

C: 2.28E+3 [rnin] Storativity: 1.43E-9


Screen radius: 0.14 [rn] r/L: 0.9



Discharge rate: 39.18 [Vs]

Comments:

Evaluated by:

Date: 1/3/2003



Ph: 250-372-9194 Fax: 250-372-9398


Project: Alto

I No: 02392

I Client: Alto Utilities Ltd.

Steps (Cooper-Jacob Steptest) I 0.1 0

1

2 0

E

E . C ._ I

Q v)

3

4

5

Test name:

adjusted tim [mn] 1 10 100

Steps

1 Analvsis method: CooperJacob Steptest

South West Well

Analvsis results: Transmissivity: 2.64E+2 [m2/d] Conductivity: 2.88E+1 [mld]


Screen radius: 0.14 [m] Unconfined aquifer

Screen length: 9.14 [m] I

Casing radius:

Discharge rate:

0.1 5 [m]

30.216667 [Vs]

Comments:

Evaluated by:

Date: 1 1 I1 9/20

Cooper-Jacob Method (confined; small r or large time)

The Cooper-Jacob (1946) method is a simplification of the Theis method valid for greater time values and decreasing distance from the pumping well (smaller values of u). This method involves truncation of the infinite Taylor series that is used to estimate the well function W(u). Due to this truncation, not all early time measured data is considered to be valid for this analysis method. The resulting equation is:

This solution is appropriate for the conditions shown in the following figure.

b

I... .a. .1. .... -..-...*.-*.I.. ... ... ._

The Cooper-Jacob solution assumes the following: . . . . . . . .

The aquifer is confined and has an "apparent" infinite extent The aquifer is homogeneous, isotropic, and of uniform thickness over the area influenced by pumping The piezometric surface was horizontal prior to pumping The well is pumped at a constant rate The well is fully penetrating Water removed from storage is discharged instantaneously with decline in head The well diameter is small, so well storage is negligible The values of u are small (rule of thumb u < 0.01)

Cooper-Jacob Time-Drawdown Method

!

The above equation plots as a straight line on semi-logarithmic paper if the limiting condition is met. Thus, straight-line plots of drawdown versus time can occur after sufficient time has elapsed. In pumping tests with multiple observation wells, the closer wells will meet the conditions before the more distant ones. Time is plotted along the logarithmic X axis and drawdown is plotted along the linear Y axis.

Transmissivity and storativity are calculated as follows:

2.25 T'." I.1

S =

An example of a Cooper-Jacob Time-Drawdown analysis graph has been included below:

0

1 .I8

4.72

5.9

Brown Hill No. 4 (CooperJacob Time-Drawdown] Time [min]

I 0 0 1000 10000 100000

u o I '

0 . o : 0 ............................................................. ...............

0 :i:.. 1 - \! . . f Ll 1 Q n

............................................. ................ .", .......

\. ! \ I ......................................................................... .... ........ B.... ' I

I ! = - - ................. . . . . . . .

The data requirements for the Cooper-Jacob Time-Drawdown solution method are: . . . Pumping rate (constant)

Drawdown vs. time data at an observation well Finite distance from the pumping well to the observation well

Cooper-Jacob Distance-Drawdown Method

If simultaneous observations of drawdown in three or more observation wells are available, a modification of the Cooper-Jacob method may be used. The observation well distance is plotted along the logarithmic X axis, and drawdown is plotted along the linear Y axis.


2.2 5 Ticl s - ?I2

where r0 is the distance defined by the intercept of the zero-drawdown and the straight-line though the data points.

An example of a Cooper-Jacob Distance-Drawdown analysis graph has been included below:

2.4

3

100

Brown Hil l No. 4 (CooperJacob Distance-Drawdown) Distance from pumping well [ft]

1000 10000

..................................................................................................................... .!

i i / I i

.................................................... / ; .I. .............................................................. I I I

i I

-. ...................... _... ..................... ..~-- ...................

.ow3 .OW4 now5

The data requirements for the Cooper-Jacob Distance-Drawdown solution method are: . . . Pumping rate (constant)

Drawdown vs. time data at three or more observation wells Distance from the pumping well to the observation wells

Cooper-Jacob Time-Distance-Drawdown Method

As with the Distance-Drawdown Method, if simultaneous observations are made of drawdown in three or more observation wells, a modification of the Cooper-Jacob method may be used. Drawdown is plotted along the linear Y axis and Vr2 is plotted along the logarithmic X axis.


where r0 is the distance defined by the intercept of the zero-drawdown and the straight-line though the data points.

An example of a Cooper-Jacob Time-Distance-Drawdown analysis graph has been included below:

Brown Hill No. 4 (CooperJacob Time-Distance-Drawdown) tk' [min/ft']

1 E-5 1 E-4 1 E-3 1 E-2 1 E-I

a . :

............................ ................ " . " .Y ....................................... "

....................

The data requirements for the Cooper-Jacob Time-Distance-Drawdown solution method are: . . . Pumping rate (constant)

Drawdown vs. time data at three or more observation wells Distance from the pumping well to the observation wells

c . . .................

Copyright 0 2001 Waterloo Hvdroaeoloaic. Inc. All rights reserved.

i

Hantush and Jacob (1955) Solution Method for Leaky-Confined Acluifers

The Hantush and Jacob (1955) solution method assumes the aquifer system has the following properties: - leaky confining layer - flow to the well is steady state(i.e. water levels are not changing at the time you begin the test) - storage in the aquitard is assumed to be negligible - both aquifer and leaky confining layer have seemingly infinite extent - both the aquifer and leaky confining layer have homogenous composition, isotropic and uniform thlckness over the area influenced by the tes

. - the flow in the leaky confining layer is vertical - the drawdown in the unpumped aquifer (or leaky c o n f i i g layer if there is no unpumped aquifer) is negligible

The pumping test must adhere to the following experimental details: - pumping must be done at a constant rate - the pumping well penetrates the entire saturated thickness (i.e. at least 80 percent of the saturated thickness) - L > 3D (where, L = leakage factor; D = saturated thickness of the aquifer) - r/L 5 0.05 (where, r = radial distance from the pumping well to the observation well [length])

- .

Hantush-Jacob Method (leaky, no aquitard storage)

Most confined aquifers are not totally isolated from sources of vertical recharge. Less permeable layers, either above or below the aquifer, can leak water into the aquifer under pumping conditions. Walton developed a method of solution for pumping tests (based on Hantush-Jacob, 1955) in leaky-confined aquifers with unsteady-state flow. The flow equation for a confined aquifer with leakage is:

where:

K' is the vertical hydraulic conductivity of the leaky aquitard b' is the thickness of the leaky aquitard

e m

The Walton solution to the above equation is given by:

where:

where W(u,r/B) is known as the Leaky well function (Freeze and Cherry, 1979 and Hall, 1996).

The well function is a function of both u and r/B, which are defined as:

The leakage factor, B. and the hydraulic resistance, c, are defined as:

If K' = 0 (non-leaky aquitard) then r/B = 0 and the solution reduces to the Theis solution for a confined system.

A logllog scale plot of the relationship W(o,r/B) along the Y axis versus I / u along the X axis is used as the type curve as with the Theis method. The field measurements are plotted as t along the X axis and s along the Y axis. The data analysis is done by curve matching.

An example of a Hantush-Jacob analysis graph has been included below:

1E+2

1 E+l

1 E+O 4 c

1 E-I k

1 E-2

1E-3

I E+I

1 E+O

-

-- I- 4 1 E-2

ff I 5

6 1 E-3

i

1 E+O 1 E+l 1E+2 1E+3 1E+4 1E+5 1 E+6 1 E+7 t [min]

The Hantush-Jacob solution has the following assumptions: . .

The aquifer is leaky and has an "apparent" infinite extent The aquifer and the confining layer are homogeneous, isotropic, and of uniform thickness over the area influenced by pumping The piezometric surface was horizontal prior to pumping The well is pumped at a constant rate The well is fully penetrating Water removed from storage is discharged instantaneously with decline in head The well diameter is small, so well storage is negligible Leakage through the confining layer is vertical and proportional to the drawdown The head in any un-pumped aquifer@) remains constant Storage in the confining layer is negligible

.

.

.

.

.

.

.

.

. Flow is unsteady

The data requirements for the Hantush-Jacob (no aquitard storage) solution are: . . . Pumping rate (constant)

Drawdown vs. time data at an observation well Distance from the pumping well to the observation well

Copyright 0 2001 Waterloo Hvdroqeoloqic, Inc. All rights reserved.

i

Cooper-Jacob Steptest (variable discharge rate)

AquiferTest provides the ability to use water level vs. time data which were recorded during a variable rate or intermittent pumping test to determine the transmissivity and storativity. A time transformation, similar to that published by Birsoy and Summers (1 980), is used to provide a congruent data set. This solution is appropriate for the conditions shown in the following figure.

i t

Pi-

The principle of superposition is applied to Cooper-Jacob's expression for non-equilibrium flow in a confined aquifer to obtain an expression for the drawdown at time t of the i th pumping period of a variable rate pumping test, as follows:

where, in general:

where:

ti = start time for the i th pumping period

!

t-fi = time since the start of the i th pumping period t'i = end time for the i th pumping period t-t'i = time since the end of the i th pumping period Qi = constant pumping rate for the i th pumping period Qn = sum of the intermittent pumping rates Pf(n)(t-tn) = adjusted time

In the specific case where there is continuous pumping, but with a variable rate, the 'adjusted time' becomes:

In the case of pulse pumping, where the pumping rate is always the same but the pump is turned off intermittently, the 'adjusted time' becomes:

An example of a Cooper-Jacob Steptest analysis graph has been included below:

0

1.281

- n 2.562 -E E C .- I

s 3.843

5.1 24

6.405

Brown H i l l No. 3 (CooperJacob Steptest) adjusted time [min]

10 100 - I-).---

I . .................................................. ............................................. I

. ," ........................

.OWZ

i

The Cooper-Jacob Steptest solution assumes the following: - . *

*

'

'

*

'

.

The aquifer is confined and has an "apparent" infinite extent The aquifer is homogeneous, isotropic, and of uniform thickness over the area influenced by pumping The piezometric surface was horizontal prior to pumping The well is pumped step-wise or intermittently at a variable rate, or it is pumped intermittently at a constant discharge rate The well is fully penetrating Water removed from storage is discharged instantaneously with decline in head The well diameter is small, so well storage is negligible Flow toward the well is at an unsteady state The values of u (with the 'adjusted time') are small (rule of thumb u C 0.01)

The data requirements for the Cooper-Jacob Steptest solution are: Drawdown vs. time data at an observation well Distance from the pumping well to the observation well Variable discharge rate

-

Copyright 0 2001 Waterloo Hvdroqeoloaic. Inc. All rights reserved.

,

APPENDIX C

Comparative Criteria Analytical Chemistry Certificates

I

Summary of Guidelines for Canadian Drinking Water Quality

Prepared by the Federal-Provincial-Territorial Committee on Drinking Water

of the Federal-Provincial-Territorial Committee

on Environmental and Occupational Health

April 2002

The Guidelines for Canadian Drinking Water Quality are published by Health Canada. In order to keep interested parties informed of changes to the Guidelines between pub lication of new editions, this summary table is updated and published every spring on Health Canada’s website (www.hc-sc.gc.ca/waterquality). The April 2002 “Summary of Guidelines for Canadian Drink ing Water Quality” supercedes all previous versions, including that contained in the published booklet.

Membership of the Federal-Provincial-Territorial Committee on Drinking Water and Secretariat

Provincial and Territorial Representatives

Alberta Department of Environment British Columbia Ministry of Health Planning Manitoba Department of Conservation New Brunswick Newfoundland and Labrador Department of Environment

Department of Health and Wellness

Northwest Territories Nova Scotia Nunavut Territory Ontario Prince Edward Island Quebec Saskatchewan Yukon Territory

Federal Representatives

Health Canada Environment Canada

Liaison Officers

Dr. Jim Popplow Mr. Tim Macaulay

Committee Secretary

Department of Health and Social Services Department of Environment and Labour Department of Health and Social Services Ministry of Environment and Energy Department of Fisheries, Aquaculture and Environment Ministtre de 1’Environnement Department of the Environment Department of Health and Social Services

Mr. Karu Chinniah Mr. Barry Boettger

Mr. Don Rocan Mr. Ivan Brophy

Mr. Martin Goebel Mr. Duane Fleming Mr. David Briggins

Mr. Bruce Trotter Mr. Adam Socha

Mr. George Somers Ms. Heltne Tremblay

Mr. Thon Phommavong Ms. Patricia Brooks

Ms. Michtle Giddings Ms. Connie Gaudet

Federal-Provincial-Territorial Committee on Environmental and Occupational Health Canadian Advisory Council on Plumbing

Health Canada (Water Quality and Health Bureau, Safe Environments Programme, Healthy Environments and Consumer Safety Branch) Mr. David Green

1

Safe Environments Programme Health Canaah

Summary of Guidelinesfor Canadian Drinking Water Quality (04/02) Federal-Provincial-Territorial Commiiiee on Drinking Water

2. No consecutive samples from the same site or not more than 10% of samples from the distribution system in a given calendar month should show the presence of total coliform bacteria. The ability of total coliforms to indicate the presence of faecal pollution is less reliable than E. coli. However, this group of bacteria is a good indicator of quality control. The presence of total coliforms does not necessarily require the issuance of a boil water advisory but corrective actions should be taken.

Semi-public and Private Drinking Water Suppry Systems

1. No sample should contain E. coli. As stated above, the presence of E. coli indicates faecal contamination and the possible presence of enteric pathogens; therefore the water is unsafe to drink. If E. coli is detected, a boil water advisory should be issued and corrective actions taken.

2. No sample should contain total coliform bacteria. In non-disinfected well water, the presence of total coliform bacteria in the absence of E. coli indicates the well is prone to surface water infiltration and therefore at risk of faecal contamination. In disinfected water systems, the presence of total coliform bacteria indicates a failure in the disinfection process. In both disinfected and non-disinfected systems, total coliform detection may also indicate the presence of biofilm in the well or plumbing system. The degree of response to the presence of total coliform bacteria, in the absence of E. coli, may be site specific and can vary between jurisdictions.

Protozoa (Under Review) Numerical guidelines for the protozoa Giardia and Cryptosporidium are not proposed at this time. Routine

methods available for the detection of protozoan cysts and oocysts suffer from low recovery rates and do not provide any information on their viability or human infectivity. Nevertheless, until better monitoring data and information on the viability and infectivity of cysts and oocysts present in drinking water are available, measures to reduce the risk of illness as much as possible should be implemented. If viable, human-infectious cysts or oocysts are present or suspected to be present in source waters or if Giardia or Cryptosporidium has been responsible for past waterborne outbreaks in a community, a treatment regime and a watershed or wellhead protection plan (where feasible) or other measures known to reduce the risk of illness should be implemented.

Viruses (Under Review)

human enteric viruses, many of which are non-culturable. Testing is complicated, expensive, not available for all viruses, and beyond the capabilities of most laboratories involved in routine water quality monitoring. The best means of safeguarding against the presence of human enteric viruses are based upon the application of adequate treatment and the absence of faecal indicator organisms, such as Escherichia coli.

Numerical guidelines for human enteric viruses are not proposed at this time. There are more than 120 types of

Boil Water Advisories

a rolling boil for 1 minute is considered adequate. General guidance on the issuing and rescinding of boil water advisories is provided. In the event of an advisory,

Summary of Guidelines for Chemical and Physical Parameters

Parameters with Guidelines Guidelines for all chemical and physical parameters, including all new, revised and reaffirmed maximum

acceptable concentrations (MACs), interim maximum acceptable concentrations (IMACs) and aesthetic objectives (AOs), are listed in Table 2. For more information on the drinking water guideline for any particular compound, please refer to the Supporting Documentation for the parameter of concern.

3

Safe Environments Programme Health Canada

Summary of Guidelines for Canadian Drinking Water Qualiv (04/02) Federal-ProvinciaCTevitorial Committee on Drinking Water

MAC IMAC A 0 Parameter (mgn) ( m g m (mgn) iron 20.3 lead 2 0.0 10 malathion 0.19 manganese - <0.05 mercury 0.001 methoxychlor 0.9 metolachlor 0.05 metribuzin 0.08 monochlorobenzene 0.08 20.03 nitrate 7 45 nitrilotiacetic acid (NTA) 0.4 odour Inoffensive

parathion 0.05 pentachlorophenol 0.06 20.030

paraquat (as dichloride) 0.01 8

DH 6.5-8.5 9 phorate 0.002 picloram 0.19 selenium 0.01 simazine 0.01 sodium 10 1200 subhate 11 ~ 5 0 0 sulphide (as H2S) ~ 0 . 0 5 taste Inoffensive temperature 215°C terbufos 0.001 tetrachloroethylene 0.03

toluene - <0.024 total dissolved solids (TDS) 2500 trichloroethylene 0.05

trifluralin 0.045

tetrachlorophenol, 2,3,4,6- 0.1 - <o.oo 1

tichlorophenol, 2,4,6- 0.005 10.002

trihalomethanes (total) 12 0.1 turbidity 1 NTU 13 25 NTU 13J4

uranium 0.02 vinvl chloride 0.002 xylenes (total) 10.3 zinc 2 15.0

5

i


Summary of Guidelines for Canadian Drinking Water Quality (04/02) Federal-Provincial-Territorial Committee on Drinking Water

Table 3 Summarv List of Parameters without Guidelines

Parameter Parameter ammonia pesticides (total) asbestos phenols calcium phthalic acid esters (PAE) chlordane (total isomers) dichlorodiphenyltrichloroethane (DDT) + metabolites radon endrin resin acids formaldehyde silver

hardness temephos heptachlor + heptachlor epoxide lignin toxaphene lindane trialIat e magnesium trichlorophenoxyacetic acid, 2,4,5- (2,4,5-T) methy 1-parathion mirex

Notes: 1.

polycyclic aromatic hydrocarbons (PAH)

gasoline tannin

total organic carbon

trichlorophenoxypropionic acid, 2,4,5- (2,4,5-TP)

Public acceptance of hardness vanes considerably. Generally, hardness levels between 80 and 100 mgK (as CaCO,) are considered acceptable; levels greater than 200 mg/L are considered poor but can be tolerated; those in excess of 500 mg/L are normally considered unacceptable. Where water is softened by sodium ion exchange, it is recommended that a separate, unsoftened supply be retained for culinary and drinking purposes.

2. Other than benzo[a]pyrene.

Summary of Guidelines for Radiological Parameters

In setting dose guidelines for radionuclides in drinking water, it is recognized that water consumption contributes only a portion of the total radiation dose and that some radionuclides present are natural in origin and therefore cannot be excluded. Consequently, maximum acceptable concentrations (MACs) for radionuclides in drinking water have been derived based on a committed effective dose of 0.1 mSv* from one year’s consumption of drinking water. This dose represents less than 5% of the average annual dose attributable to natural background radiation.

activity concentration, which can be derived for each radionuclide from published radiological data. The National Radiological Protection Board has calculated dose conversion factors @CFs) for radionuclides based on metabolic and dosimetric models for adults and chi1 dren. Each DCF provides an estimate of the 50-year committed effective dose resulting from a single intake of 1 Bq** of a given radionuclide.

of 2 L, or 730 L/year, and a maximum committed effective dose of 0.1 mSv, or 10% of the International Commission on Radiological Protection limit on public exposure:

To facilitate the monitoring of radionuclides in drinking water, the reference level of dose is expressed as an

The MACs of radionuclides in public water supplies are derived from adult DCFs, assuming a daily water intake

1 x iO-4(Sv/year)

730 (Yyear) x DCF (SvBq) MAC (Bq/L) =

Sievert (Sv) is the unit of radiation dose. It replaces -: old unit, rem (1 rem = 0.0 SI I. ** Becquerel (Bq) is the unit of activity of a radioactive substance, or the rate at which transformations occur in the substance.

One becquerel is equal to one transformation per second and is approximately equal to 27 picocunes @Ci).


Summaty of Guidelines for Canadian Drinking Water Quality (04/02) Federal-Provincial-Territorial Committee on Drinking Water

Table 5 Secondary List of Radionuclides - Maximum Acceptable Concentrations (MACs) Radionuclide Half-life tx DCF (Sv/Bq) MAC (Bq/L)

Natural Radionuclides Beryllium-7 7Be

Polonium-2 10 2 1 OPO

Bismurh-2 10 210Bi 53.3 days 3.3 x 10-11 4000 5.01 days 2.1 x 10-9 70

138.4 days 6.2 x 10-7 0.2

Artificial Radionuclides * * Americium-24 1 Antimony-122 Antimony- 124 Antimony-125 Barium-140 Bromine-82 Calcium-45 Calcium47 Carbon- 14 Cerium- 1 4 1 Cerium- 1 44 Cesium- 13 1 Cesium- 136 Chromium-5 1 Cobalt-57 Cobalt-58 Cobalt-60 Gallium-67

Indium- 1 1 I Iodine- 129 Iron-55 Iron-59 Manganese-54 Mercury- 197 Mercury-203 Neptunium-23 9 Niobium-95

Gold-198

Phosphor~s-32 Plutonium-23 8 Plutonium-239 Plutonium-240 Plutonium-24 1

241Am 432 years *22Sb 2.71 days 124Sb 60.2 days 125Sb 2.76 years 140Ba 12.8 days 82Br 35.3 hours 45Ca 165 days 47Ca 4.54 days 14c 5730 years

141Ce 32.5 days 144Ce 284.4 days 131cs 9.69 days 136Cs 13.1 days 51cr 27.7 days 57c0 271.8 days WO 10.9 days 6OCo 5.27 years 67Ga 78.3 hours

198Au 2.69 days lllIn 2.81 days 1291 1.60 x 107 years

55Fe 2.68 years 59Fe 44.5 days

54Mn 3 12.2 days 197Hg 64.1 hours 203Hg 46.6 days 239Np 2.35 days 95Nb 35.0 days

32P 14.3 days 238Pu 87.7 years 239Pu 2.41 x IO4 years 240Pu 6560 years 241Pu 14.4 years

5.7 x 10-7 2.8 x 10-9 3.6 x 10-9

3.7 x 10-9 9.8 x 10-10

4.8 x 10-10 8.9 x 10-10 2.2 x 10-9

1.2 x 10-9 5.6 x 10-10

8.8 x 10-9 6.6 x 10-11

5.3 x 10-11

6.8 x 10-9 9.2 x 10-8

2.6 x 10-10

3.9 x 10-10

4.0 x 10-10

7.3 x 10-10 3.3 x 10-10

3.0 x 10-9

3.5 x 10-9

1.6 x 10-9

1.1 x 10-7

3.1 x 10-9

1.8 x 10-9 1.2 x 10-9

2.6 x 10-9 5.1 x 10-7 5.6 x 10-7 5.6 x 10-7

7.7 x 10-10

1.1 x 10-8

0.2 50 40

100 40

300 200 60

200 100 20

2000 50

3000 40 20 2

500 90

400 1

300 40

200 400

80 100 200

50 0.3 0.2 0.2 10

*

**

The activity concentration of natural uranium corresponding to the chemical guideline of 0.1 mg/L (see separate criteria summary on uranium in the Supporting Documentation) is about 2.6 B q L Tritium and '4C are also produced naturally in the atmosphere in significant quantities.

9

Water Quality Summary - Alto Utilities - South Well Winfield, British Columbia

Stiff Diagram

Alto Utilities -South Well - Oct 9,2002

Stiff diagram = Constructed by converting the analpcal results to millequivalents per litre and then plotting anions and cations on three (or more) different axes. This representation can be useful to show the geographic distributions of different water sources.

Analytical Chemistry Parameters that Exceed Criteria

* = BC Approved Water Quality Guidelines (criteria) - Drinking Water Guidelines - 1998 A 0 = Aesthetic Objective MAC = Maximum Acceptable Concentration NTU = Nephelometric Turbidity Unit Bold = Exceeds SGCDWQ 2001

General Water Quality Information

i

*prl$ood Envlmnnmntrl Group Calgary Edmonton Wlnnlpp Lethbridge Sumy

Bill to: Kala Groundwater Consulting Report to: Kala Groundwater Consulting

207,220 - 4 Avenue Kamloops, BC, Canada V2C 3N6

Attn: Marie Bailey Sampled By: Perry

Company: Kala

Analytical Report

Project

I D 02392 Name: Alto Location: Winfield L S D

P.O.:

Acct. Code:

Norwest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8

.*Phone: (604) 514-3322 Fax: (604) 514-3323

NWL Lot ID: 197953 ConbnlNumber: E M Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number: 316520

Paae: 1 of 17 NWL Number 197953-1 Sample Date Oct 09,2002

Sample Description Alto - S. Well October 9,2002 4pm

Detection Limit Analyte Units Result

lnoraanic Nonmetallic Parmeters Kjeldahl Nitrogen Total ,

Ammonium - N Dissolved Phosphorus Phosphate Cyanide Metals Dissolved Silicon Sulphur Mercury Aluminum Antimony Arsenic Barium Beryllium Bismuth Boron Cadmium Chromium Cobalt Copper Lead Lithium Molybdenum Nickel Selenium Silver Strontium Thallium Titanium Uranium Vanadium Zinc Zirconium

Total as P Dissolved

Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

mglL mglL mg1L mg1L mglL

mglL mg/L mglL mglL mg1L mg1L mglL mg1L mglL mg/L mglL mglL mg1L mglL mg1L mg/L mg1L mglL mg/L mg1L mg1L mglL mglL mg/L mg1L mglL mg1L

0 . 0 5

c0.05 0.06 0.12

c o . 001

11.8 17.9 c o . 0001 c0.005 c o . 0 0 0 2

0 . 0 0 0 5

0 . 0 2 9

c o . 0001 c0.0005 0.006

c o . 00001 0.0011

c o . 0001 c o . 001 c o . 0001

0 . 0 0 9 0 . 0 0 7

c0.0005 0.0003

c o . 0001 0 . 5 2 5

c0.00005 0.0006 0 . 0 0 3 7

c o . 0001 0.001

c o . 001

0.05 0.05 0.05 0.05 0.001

0.05 0.05 0.0001 0.005 0.0002 0.0002 0.00 I o.ooo1 0.0005 0.002 o.oooo1 0.0005 0.0001 0.001 0.0001 0.001 0.001 0.0005 0.0002 0.0001 0.001 O.ooOo5 0.0005 0.0005 0.000 1 0.001 0.00 1

&& Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental bjlalytical Laboratories (CAEAL) for specific tests registered with the Council and the Association

nb-w.... 4%

@NORWEST LABS

Bill to: Kala Groundwater Consulting Report to: Kala Groundwater Consulting


Attn: Mane Bailey Sampled By: Perry

Company: Kala

Analytical Report

Project

I D 02392 Name: Alto

Location: Winfield LSD: P.O.: Acct. Code:

Norwest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

NWL Lot ID: 197953 ControlNumber E99446 Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number 3 16520

Paae: 2of17 NWL Number 197953-1 Sample Date Oct 09,2002

Sample Description Alto - S. Well October 9,2002 4pm

Analyte Units Result Detection Limit

Metals Dissolved (Trace) Mercury

Metals Total Calcium Iron Magnesium Manganese Potassium Silicon Sodium Sulphur Mercury Aluminum Antimony Arsenic Barium Beryllium Bismuth Boron

j Cadmium Chromium Cobalt Copper Lead Lithium Molybdenum Nickel Selenium Silver Strontium Thallium Titanium Uranium Vanadium

Dissolved

Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total

mglL

mg/L mg1L mglL mglL mglL mg/L mglL mg/L mglL mglL

mglL mglL mg1L mglL mglL mg/L mglL mglL mglL mglL mg/L mglL mglL mg/L mglL mg1L mglL mglL mg/L mglL mglL

< o . 0001

60.2 0 . 7 ”‘

22.9 0.050

3.4 8 .78

22.3 16.6 < o . 0002 0.033

<o . 0002

0.0006 0.033

< o . 0001 <O. 0005

0.005 0 .00028

< o . 0005 < o . 0001 0.002 0.0004 0.012 0 . 0 0 7

< O . 0005 0.0003

< o . 0001 0.562

<O. 00005 0.0024 0.0065 0.0002

o.Ooo1

0.2 0.1 0.2 0.005 0.4 0.05 0.4 0.05 0.0002 0.005 0.0002 0.0002 0.001 0.0001 0.0005 0.002 0.oooo1 0.0005 o.oO01 0.001 0.0001 0.001 0.001 0.0005 0.0002 0.0001 0.001 0.00005 0.0005 o.Ooo5 o.oO01

&% Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental .halytical Laboratories (CAEAL) for specific tests registered with the Council and the Association

Ibr.d*... 4%

AgMood 6 Envimnnmnhl Gmup Calpaty Edmonton Winnipp Wlbridgo Sumy

Analytical Report

Bill to: Kala Groundwater Consulting Project

Name: Alto Location: Winfield LSD:

Report to: Kala Groundwater Consultint? I D 02392


Am: Mane Bailey P.O.:

Sampled By: Perry Acct. Code: Company: e l a

Norwest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 5143322 Fax: (604) 514-3323

NWL Lot ID: 197953 Control Number: E 99446 Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number: 3 16520

Paoe: 3of17 NWL Number 197953-1 Sample Date Oct 09,2002

Sample Desaiption Alto - S. Well October 9,2002 4pm

Analyte Units Result Detection Limit

Zinc Total Zirconium Total Microbioloaical Analvsis Total Coliforms Membrane Filtration Fecal Coliforms Membrane Filtration Background Count Membrane Filtration Phvsical and Aaareaate ProDerties Solids Total Dissolved Turbidity Temperature of observed pH Colour Apparent Routine Water

Conductivity Calcium Dissolved Magnesium Dissolved Sodium Dissolved Potassium Dissolved Iron Dissolved

1 Manganese Dissolved Hydroxide Carbonate

PH

Bicarbonate P-Alkalinity T-Alkalinity Hardness Chloride Nitrate - N Nitrite - N Fluoride Nitrate and Nitrite - N Sulphate

as CaC03 as CaC03 Dissolved as CaC03 Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

mglL mglL

CFUI100 rnL CFUll 00 rnL CFU/lOO mL

mglL NTU "C

Colour units

uSlcm mglL mglL mg/L mglL

mg1L mg/L mg/L mg/L mglL mglL mglL mg/L mglL mglL mg1L mg/L rng/L

0. 013' e o . 001-

c 1 C 1 1

340 5.3-

22.0 14

7.80 529 61.5 23.5 22.4 3.4

co. 01 0.045

c5 c 6

310 <5

254 250

3.77 0.17

co.1 co.1 0.171

50.8

0.001 0.001

5 0.1

1

1 0.2 0.2 0.4 0.4 0.01 0.005 5 6 5 5 5

0.05 0.01 0.1 0.1 0.1 0.1

G f / L / q Approved by: John Davidson

lnorganics Team Leader f

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental b;lalytical Laboratories (CAEAL) for specific tests registered with the Council and the Association

.b.I-uc.- 4%

BLABS NORWEST

AgrCFood h Envlmnmnbl Group Ca10.y Edmonton Wlnnlpq Lathbrldge Suney

Quality Control


Report to: Kala Groundwater Consulting ID: 02392

Norwest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

Date Received: Oct 10,2002 Date Reported: Oct 21,2002

Report Number: 316520


Name: Alto Location: Winfield LSO

Am: Mane Bailey P.O.: Sampled By: Perry Acct. Code:

Company: %la Pane: 4 of 17

J Metals Dissolved

Replicates Units Replicate1 Replicate2 X RSD Criteria Absolute Criteria Passed QC

Silicon

Mercury Aluminum AnlimOny Arsenic Barium Beryllium Bismuth Boron Cadmium Chromium Cobalt Copper Lead Lithium Molybdenum Nickel Selenium

1 Silver SIrontium Thallium T i u m Vanadium znc

Material Used: Date Acouired:

Acquired By:

Sulphur 13.8

477 :o. 0001

16

0.2 1.4

41 co.1

c0.5 6

<o . 01 1.4

0.3 1

<0.1 5 4

co.5 0.6

<0.1 67

<O. 05 0.7 0.4

3

14.0

469 <a. 0001

16 0.2 1.4

41 co.1

c0.5 6

<a. 01 1.5

0.3 1

co.1 5 4

co.5

0.7

co.1 67

c0.05 0.7

0.4 3

10.00 10.00

10.0000

10.0 10.0 10.0

10.0

10.0 10.0 10.0 10.00 10.0

10.0

10.0 10.0 1 0 . 0

10.0

10.0

10.0

10.0

10.0 10.00

10.0 10.0

10.0

0.01 ' 0.02 J

11.0 ' 0.4 ' 0.4 J

2.2 J

0.2 ' 1.1 '

0.02 J

1.1 ' 0.2 ' 2.2 ' 0.2 ' 2.2 ' 2.2 J

1.1 J

0.4 J

0.2 J

2.2 J

0.11 J

1.1 ' 0.2 ' 2.2 '

0.0003 4

4.4

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytical Laboratories (CAEAL) for specific tests registered with the Council and the Association

@Lass NORWEST

AQrCFood Emlronmrnbl GIDUP Calpary Edmonton Wlnnlpp Ldhbridpe Suney

Quality Control





Norwesr Labs #104.19575-55 A Ave. Surrey, BC. v3s apa Phone: (604) 514-3322 Fax: (604) 514-3323

NWL Lot ID: 197953 ConbPlNumber: E99446

Date Received: Oct 10,2002 Date Reported: Oct 2 1,2002

Report Number: 3 16520 Atm: Mane Bailey P.O.:

Sampled By: Peny Company: G l a

Acct. Code:

Page: 5 of 17

' Metals Dissolved (Continued ...)

' Control Sample

Silicon Sulphur Mercury

Material Used: Date Acauired:

Acquired By:

Merculy

Aluminum AnfillWly Arsenic Barium Beryllium Bismuth Boron Cadmium Chromium CobaR

Lead Lithium Molybdenum Nickel Selenium Silver Sbonfum Thallium r i n r m Uranium Vanadium znc Zirconium


Acquired By:

1 Copper 1

Metals High Oct 15,2002 Stef Pavlyshyn

Measured Lower limit Upper Limit Passed QC

2 4 . 0 2 0 . 0 0 1 6 . 0 0 2 4 . 0 0 J

2 1 . 0 2 0 . 0 0 18.00 22.00 J

0.0027000 0.0033000 J 0 .0031 0.0030000

0 . 0 0 0 9

216 5 5 . 0

5 3 . 7 5

4 . 9

4 8 . 6 1 9 8

5 . 1 3 9 . 7 9 . 9

1 0 1 9 . 8

5 1 0

9 . 8 5 3 . 6

9 . 9 5

5 0 . 2 5 . 2 528 9 . 8

1 0

11

0.00080000

200 5 0 . 0 5 0 . 0 5 . 0 0

5 . 0 0 5 0 . 0

200 5 . 0 0

10 .00

1 0 . 0 0 1 0 . 0 0

2 0 . 0 5 . 0 0

1 0 . 0 0 1 0 . 0 0

5 0 . 0 1 0 . 0 0

5 .00 50.00

5 . 0 0 500.0 10 .00 10.00 10.00

0.00072000

1 8 0 4 5 . 0 4 5 . 0 4 . 5 0

4 . 5 0 4 5 . 0

180 4 . 5 0 9 . 0 0 9.00 9 . 0 0 1 8 . 0 4 . 5 0 9 .00 9 . 0 0 4 5 . 0 9 . 0 0 4 . 5 0

45 .00 4 . 5 0

4 5 0 . 0 9 .00 9.00 9 . 0 0

0 .00088000

220 5 5 . 0 5 5 . 0 5 . 5 0 5 . 5 0 55.0

220 5 . 5 0

1 1 . 0 0 11 .00 11 .00

2 2 . 0 5 . 5 0

1 1 . 0 0

1 1 . 0 0 5 5 . 0

11 .00 5 . 5 0

55 .00 5 . 5 0

550.0 11.00 11.00 1 1 . 0 0

J

J

J

J

J

J

J

J

J

J

4 J

J

J

J

J

J

J

J

J

J

J

J

J

4

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analyti&il Laboratories (CAEAL) for specific tests registered with the Council and the Association

@NORWEST LABS Quality Control Norwest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

A&FFood Envlmnmbl Group cllg.rl Edmonton Wlnnipp bthbridg* S u w


Report to: Kala Groundwater Consulting ID 02392



NWL Lot I D 197953 Control Number: E 99% Date Received: Oct IO, 2002

Date Reported: Oct 21,2002 Report Number. 316520

Ann: Marie Bailey P.O.:

Sampled By: Perry Acct. Code: Company: Kala

Paae: 60f17

Metals Dissolved (Continued ...)

Control Sample

Aluminum AntimOnY

Arsenic Barium Beryllium Bismuth Boron Cadmium Chromium Cobalt Copper Lead Lithium Molybdenum Nickel Selenium Silver Sbontium Thallium Ttanium Uranium Vanadium znc Z m i u m

Material Used: Date Acauired: Acquired By:

Measured

19 5.5 5.3 <1

0.6 4.7 21

0.51 1.0 1.0

1 2.0 <1 1

0.8 5 . 3 1.0 <1

5.11 0.6

51.7 1.1

1 1

Target

20.0 5.00 5.00

0.500 0.500 5.00 20.0 0.500 1.000 1 . 0 0 0 1 .000

2 . 0 0

0.500 1.000 1 . 0 0 0

5 . 0 0 1.000 0.500 5.00

0.500 50.0

1.000 1.000 1.000

Lower Limit

18.0 4.50 4.50

0.450 0.450 4.50 18.0

0.450 0.900 0.900 0.900 1.80

0.450 0.900 0.900 4.50 0.900 0.450 4.50 0.450 45.0 0.900 0.900 0.900

Upper Limit

22.0 5.50 5.50

0.550 0.550 5.50 22.0

0 . 5 5 0 1.100 1.100 1.100 2.20 0.550 1.100 1.100

5 .50 1.100 0.550

5 . 5 0 0 . 5 5 0

5 5 . 0 1.100 1.100 1.100

Passed ac J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J


Quality Control Norwest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

A Q M ~ L Envlmnmnll Gmup Calgary Edmonton Wlnnlpeg Lsthbridga Sumy




Am: Mane Bailey

Name: Alto Location: Winfield LSD

P.O.:

NWL Lot ID: 197953 ContrdNumber: E99446 Date Received: Oct 10,2002 Date Reported: Oct 21,2002

Report Number: 316520

Sampled By: Perry Acct. Code: Company: ma

Pane: 7of17

Inorganic Nonmetallic Parmeters

Lower Limit Upper Limit Passed QC Blanks Units Measured Target

Replicates Units

Ammonium - N mq/L

Cyanide mq/L Phosphate W / L

Material used: Edmonton Duplicate

Date Acauired: oct 16, 2002 Acquired By: ~~~i ~i

<O. 05 0.000000 <O .05 0.00000 <O .05 0.0000

<o. 001 0.00000

0.000980 0.050000 J

-0.00260 0 .05000 ' -0.00100 0.00100 ' -0.0500 0.0500

Replicate1 Replicate2 X RSD Criteria Absolute Criteria Passed QC

2.78 2.78 1 0 . 0 0 0 . 1 0 ' < O .05 <o. 05 10.00 0.05 '

0.002 ' < o . 001 10.000 <o. 001

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytidal Laboratories (CAEAL) for specific tests registered with the Council and the Association

LABS &&Food 6 Emlmnnnnhl Group Calpmy Edmonton Wlnnlpg L*thbrldga SUKW

Bill to: Report to:

Quality Control

Kala Groundwater Consulting Project

Kala Groundwater Consulting ID 02392



Norwest Labs #104,1957555 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

NWL Lot ID 197953 ContrdNurnber: E99446

Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number. 316520

Am: Marie Bailey P.O.:

Sampled By: Perry Acct. Code: Company: Kala

Page: 8 of 17

Inorganic Nonmetallic Parmeters (Continued ...)

Control Sample Units Measured Target Lower Limit Upper Limit QC

Kjeldahl Nitrogen mg/L Ammonium - N mg/L phosphonrs mg/L Cyanide mg/L

Material Used: Water figh Date Acauired: Oct 16,2002 Acquired By: H-ei Li

Kjeldahl Nitrogen ms/L Ammonium - N ms/L

Phosphate ms/L Cyanide ms/L

P~phoruS mS/L

Material Used: Water LOW

Date Acauired: Oct 16,2002 Acquired By: ~~~i ~i

31.4 30.00 27.70 32.50 J

2.71 3.00 2.70 3.30 ' 3.81 4.00 3.52 4.24 d 0.082 0.0750 0.0680 0.0870 J

5.03 5.00 0.73 0.800 0.39 0.400 0.42 0.400

0.0150 0.017

4.40 0.720 0.360 0.360 0.0135

5.40 0.880 J

0.440 0.440

0.0165


Quality Control Nonvest Labs # l a , 1957555 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 5143322

(604) 5143323 Fax:

Ag#ood h Emfmnmnhl Gmup cdp.y Edmonton mnnlpsg Lathbridg* Sumy





NWL Lot ID 197953 ContrdNumber: E99446 Date Received: Oct 10,2002 Date Reported: Oct 2 1,2002 Report Number: 316520

Am: Marie Bailey P.O.: Sampled By: Perry

Company: Acct. Code:

Paqe: 9of17

Physical and Aggregate Properties

Replicates Units Replicate1 Replicate2 X RSD Criteria Absolute Criteria Passed QC

s o r i mg/L Turbidity NTU

Material Edmonton Duplicate Date Acauired: oct 16, 2002 Acquired By: Gordon Grensmann

Control Sample Units

Solids ms/L T W i NTU

Material Used: water nate Acniirprl oct 16, 2002 Acquired BY: Gordon Grensmann

Solids mg/L Turbidity NTU

Material Used: water L~~ h t e A m i i i r d oct 16, 2002 Acquired BY: Gordon Grensmann

TUrWity NTU 1 Material Used: water T~~~ Date Acouired: Oct 16,2002 Acquired BY: Gordon Grensmann

673 687 10.0 5.0 J

0.3 0.3 10.0 0.2 J

Lower Limit Measured Tag&

747 500 400 185 180.0 183.0

167 100.0 17.0 18.0

1.8 1.80

80.0 16.8

1.81

Upper Limit Passed QC

600 ' 189.0 J

120.0 J

17.4 '

1.85 J

I Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytical Laboratories (CAEAL) for

specific tests registered with the Council and the Association


-~ ~ g r r F d h Envimnnmntal O ~ W P Calgary Edmonton Wnnlpg Lethbridga Sunw




A m : Mane Bailey Sampled By: Perry

Company: h l a


P.O.:

Acct. Code:

NWL Lot ID: 197953 Control Number: E 99446

Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number. 3 16520

j Routine Water

Units Replicate1 Replicate2 X RSD Criteria Absolute Criteria Passed QC Replicates

PH Conductivity Calcium Magnesium sodium Potassium Iron Manganese PAlkalinity T-Alkalinity

dS/m

W / L W / L

W / L

m s / L ms/L

W/L

W / L

mg/L

8.28

3.55 42.7

8.3

9.5 8.0

< O . 05 0.013

<5 421

3.55 42.8

8.3

9.7 7.8

~ 0 . 0 5 0.012

<5

419

10.00 10.000

10.0

10.0 10.0

10.0 10.00

10.000 10.0

10.0

0.10

0.002 0.6

0.2

1.2 1.2

0.01 0.001

5.0 5.0

J

J

J

J

J

J

J

J

J

J

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytid Laboratories (CAEAL) for specific tests registered with the Council and the Association

Quality Control Nomest Labs #104,19575-55 A Ave. Surrey, BC. V3S aPa Phone: (604) 514-3322

(604) 514-3323 Fax:




Attn: Mane Bailey Sampled By: Perry

Company: &la


P.O.:

Acct. Code:

NWL Lot ID: 197953 Control Number: E 99446 Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number. 316520

Pane: 11 of 17

' Routine Water (Continued ...)

Control Sample Units Measured Target Lower Limit Upper Limit Passed QC

Calcium Magnesium Sodium Potassium Iron Manganese

Material Used:

Date Acouired:

Acquired By:

Metals High Oct 15,2002 Jesse Dang

PH Conductwity PAlkalinity T-Alkaliiily

Material Used: water agh Date Acouired: oCl 11,2002 Acquired By: ~i~~ bOtt

PH Conductivity i PAlkaliniky T-Alkalinity

Material Used: Water L~~ Date Acauired: Oct 1 1,2002 Acquired By: ~i~~ hott

9.5 10.00 9.00 11.00 ' 49.7 50.0 45.0 55.0 J

47.3 50.0 45.0 55.0 J

46.8 50.0 45.0 55.0 J

5.07 5.00 4.50 5.50 J

0.503 0.500 0.450 0.550 '

9.20 9.18 2.70 2.765 520

1000 1000

8.73 2.680

490 972

6.88 6.86 6.82 0.074 0.0739 0.0740

61 46.8 131 125 121

9.67 ' 2.840 ' 557 ' 1035 J

6.91 0.0790 ' 71.0 ' 133 '

I



&+Fwd & Emimnnmnbl Gmup Calgary Edmonlon Wlnnlpg L.Ulbridg* Sumy





NWL Lot ID: 197953 ConWNumbec E99446 Date Received: Oct 10,2002 Date Reported: Oct 2 1,2002 Report Number. 3 16520

A m : Mane Bailey P.O.:

Sampled By: Peny Acct. Code: Company: Q l a

Paoe: 120f 17

i Metals Total

Blanks

Calcium Iron Magnesium Manganese Potassium Silicon Sodium Sulphur Merculy

Material Used: Date h i r e d :

Acquired By:

Replicates

Calcium

Iron Magnesium

Manganese Pot ass i urn

! Silicon Sodium Mercury Lithium


Acquired By:

Units

mg/L mg/L m d L mg/L mg/L mg/L mg/L mg/L mg/L

Edmonton Method Blank Oct 15,2002 Stef Pavlyshyn

Units

ms/L ns/L ms/L ms/L ms/L ms/L mg/L m4/L ug/L

Edmonton Duplicate

Oct 11,2002

Measured

co.2 co.1 <0.2

co. 005 c0.4

e o . 05 c0.4 co.05

<0.0002

Replicate1

469

156 164

14.3 5360

250 405

0.0004 <30

Target

0.0000 0.0000 0.0000

0.000000 0.000

0 . 0 0 0 0

0.000 0.0000

0.000000

Replicate2

470

165 166 14.6 523 0

272 398

' 0.0004

Lower Limit

-0.0312 -0.0149 -0.0305

-0.000700 -0,102

-0.0435 -0.194 -0.0333

-0.000111

X RSD Criteria

10.0 10.0

10.0 10.000

10.0 10.00

10.0 10.0000

10.0

Upper Limit

0.2000 0.0290 0.0500

0.001200 0.400 0.0933 0.400 0.0447

0.000111

Absolute Criteria

0.6

0.0 0.2

0.001 1.2

0.01 1.2

0.0003 2.2

P d Q C

J

J J

./

J

J J

J J


Quality Control Norwest Labs #104,19575-55 A Ave. Surrey, BC. V ~ S apa Phone: (604) 514-3322 Fax: (604) 514-3323

-~ ~ p , i . F d h EnvimnmnIal G r w p Calplly Edmonton Winnipeg L.Ihbrldg* S u m





NWL Lot ID: 197953 ContrdNumber: E99446 Date Received: Oct IO, 2002 Date Reported: Oct 2 1,2002 Report Number: 316520

Attn: Mane Bailey P.O.: Sampled By: Peny Acct. Code:

Company: Kala Pane: 13of17

1 Metals Total (Continued ...)

Control Sample

Calcium lrOn

Magnesium Manganese Potassium Silicon Sodium Sulphur Mercury

Material Used: Date Acouired: Acquired By:

Calcium llon Magnesium Manganese Potassium Silicon Sodium

i Sulphur Mercury

Material Used: Date Acauired: Acquired By:

Units

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L

Edmonton Digestion Check Oct 15,2002 Stef Pavlyshyn

W / L ms/L ms/L ms/L ms/L ms/L ms/L mS/L ms/L

Metals High Oct 15,2002 Stef PavIyshyn

Measured

0.9 0.5 5.0

0.050 4.5 1.74 4.1 1.80

0.0008

9.6 5.1

50.6 0.497 46.9 23.5 48.0 21.0

0.0030

1.000 0.500 5.00

0.0500 5.00 2.00 5.00 2.00

0.000800

10.00 5.00 50.0 0.500 50.0

20.00 50.0 20.00

0.00300

Lower Limit

0.900 0.478 4.48

0.0412 4.30 1.70 4.08 1.73

0.000720

9.00 4 .SO 45.0 0.450 45.0 16.00 45.0 18.00

0.00270

Upper Limit

1.100 0.552 5.19

0.0539 5.06 2.16 5.25 2.11

0.000880

Passed Qc

J

4

4 J

J

J

J

4 J

11.00 ' 55.0 ' 55.0 ' 55.0 '

22.00 '

5.50 ' 0.550 ' 24.00 '

0.00330 '

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytidal Laboratories (CAEAL) for specific tests registered with the Council and the Association

Aprl-Food h Emlmnmnal Group CaIga.y Edmonton WInnipg Ldhbddge Sumy

Bill to: Report to:

Quality Control


Kala Groundwater Consulting I D 02392



Norwest Labs #104,19575-55 A Aye. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

NWL Lot I D 197953 Control Number: E 99446

Date Received: Oct 10,2002 Date Reported: Oct 21,2002 Report Number: 316520

Ann: Marie Bailey P.O.:

Sampled By: Perry Acct. Code: Company: &la

Paae: 14of17

Metals Total (Continued ...)

Control Sample

Mercury Aluminum

Arsenic Barium Beryllium Bismuth Boron Cadmium Chromium Cobalt copper Lead Lithium Molybdenum Nickel Selenium Silver Strontium Thallium Titanium Uranium Vanadium znc Zlmium


Acquired By:

Antirony

Measured

0.0008 206

49.2 51.1

5 5.2

49.8 213 4.82

9 .7

10.2 10

2 0 . 0 6 10

10.0 5 0 . 9

9.5 5

49 .8 5.2 512 9.7 10 10

Target

0.000800 200 50.0 50.0 5.00 5.00 50.0 200 5.00

10.00 10.00 10.00 20.0 5.00 10.00 10.00

50 .0 10.00 5.00

50.00 5.00

500.0 10.00 10.00 10.00

Lower Limit

0.000720 180

45.0 45.0 4.50 4.50 45.0 180

4.50 9.00 9.00 9.00 18.0 4 .50 9.00 9.00 45.0 9.00 4.50 45.00 4.50 450.0 9.00 9 .00 9.00

Upper Limit

0.000880 220 55.0 55.0 5.50 5.50 55.0 220 5.50

11.00 11.00 11.00 22.0 5.50 11.00 11.00 55.0

11.00 5.50 55.00 5.50

550.0 11.00 11.00 11.00

I P d Q C

J J J J J J J J J J J J J J J J J J J J J /

J J J

Accredited by-the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytrcal Laboratories (CAEAL) for specific tests registered with the Council and the Association

AprCFood Envlmnnwnbl Group Calpuy Edmonton mnnlpp L.Ulbrldg. Sumy

Quality Control

Bill to: Report to:


Kala Groundwater Consulting ID 02392


Attn: Marie Bailey Sampled By: Perry

Company: &la


P.O.:

Acct. Code:

Nomest Labs #104,19575-55 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

NWL Lot I D 197953 Control Number: E 99446 Date Received: Oct 10,2002 Date Reported: Oct 21,2002

Report Number: 3 16520

~~

Metals Total (Continued ...)

Control Sample

Aluminum

Arsenic Barium Beryllium BiSmuth Boron Cadmium Chromium Cobalt

Copper Lead Lithium Molybdenum Nickel Setenium Silver Sbontiurn Thallium Titanium Uranium Vanadium znc Zirconium


Acquired Ey:

htjmOny

Measured

23 5 . 0 5 .3 <1

0 . 7 5.0

20

0 .49

0 . 9 1 . 0 <l

2 . 1 <1 1

1 . 0 5 . 1 1 . 0 <1

4 .99 0 .5

51.7 1 . 0

1 1

Tag&

20 .0 5.00 5 . 0 0

0.500 0 . 5 0 0

5 . 0 0 20.0

0 . 5 0 0

1 .000 1 .000 1 .000

2.00

0.500 1.000 1 . 0 0 0

5.00 1 . 0 0 0

0.500 5.00

0.500

50.0 1 .000

1 . 0 0 0 1 .000

Lower Limit

1 8 . 0

4 .50 4.50

0.450 0.450

4 .50

1 8 . 0

0.450 0.900 0.900 0.900

1 . 8 0

0.450 0.900 0.900

4 .50 0.900 0.450

4 .50 0.450

45 .0 0.900 0.900 0.900

Upper Limit

22.0 5.50 5.50

0.550 0.550

5.50 22.0

0.550 1 .100 1 . 1 0 0 1.100

2 .20 0.550 1 .100 1 . 1 0 0

5.50 1 .100

0.550 5.50

0.550

55.0 1 . 1 0 0 1.100 1 .100

P&QC

J J J J J J J J J J J J J J J J J J J J J J J J

Accredited by the Standards Council of Canada (SCC) and by the Canadian Association for Environmental Analytical Laboratories (CAUL) for specific tests registered with the Council and the Association

Norwest Labs #104,1957555 A Ave. Surrey, BC. V3S 8P8 Phone: (604) 514-3322 Fax: (604) 514-3323

Methodology and Notes

Bill to: Kala Groundwater Consulting Project Report to: Kala Groundwater Consulting ID: 02392

207,220 - 4 Avenue Name: Alto

Kamloops, BC, Canada V2C 3N6

Attn: Marie Bailey

Location: Winfield LSD: P.O.: Acct. Code: Sampled By: Perry

NWL Lot ID: 197953 Control Number: E 994.46 Date Received: Oct 10, 2002

Report Number: 3 16520 Date Reported: Oct 21,2002

Company: Kala Page: 1 6 o f 1 7

Method of Analysis:

Test Reference Method Date of Location Analyst I

Analysis

(0rtho)Phosphate in APHA Water Alkalinity, pH, and EC in water

APHA

Ammonium in Water APHA

Anions by IEC in water APHA

Cyanide (Dissolved) in water

Alta. Env. Method

Fecal Coliforms - MF APHA

APHA i ! Kjeldahl Nitrogen &

Phosphorus (Total) in Water

Mercury (Dissolved) in APHA water

Mercury (Total) in water MDMES

Metals ICP-MS US EPA (Dissolved) in water

Metals ICP-MS (Total) in US EPA water

Metals Trace (Dissolved) APHA in water

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* *

* *

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*

* *

*

*

*

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Automated Ascorbic Acid Oct 2 1,2002 Norwest Labs Edmonton Reduction Method, 4500-P F Conductivity - Laboratory Oct 15,2002 Norwest Labs Edmonton Method, 25 10 B Electrometric Method, Oct 15,2002 Norwest Labs Edmonton

Laboratory & Field Methods, Oct 15, 2002 Norwest Labs Edmonton 2550 B Titration Method, 2320 B Oct 15,2002 Norwest Labs Edmonton Automated Phenate Method, Oct 16, 2002 Norwest Labs Edmonton

Ion Chromatography with Oct 17,2002 Norwest Labs Surrey Chemical Suppression of Eluent Cond., 41 10 B Single-Column Ion Oct 17,2002 Norwest Labs Surrey Chromatography with Electronic Suppression, 41 10 C Cyanide, Simple Extractable Oct 16,2002 Norwest Labs Edmonton (Automated Pyridine-Barbituric Acid Colorimetric Method), 06608L Fecal Coliform Membrane Oct 15,2002 Nomest Labs Calgary Filter Procedure, 9222 D Automated Ascorbic Acid Oct 16,2002 Norwest Labs Edmonton Reduction Method, 4500-P F Total Kjeldahl Nitrogen in Oct 16,2002 Norwest Labs Edmonton SoiVPlant, 13-107-6-2-D Cold Vapur Atomic Oct 16,2002 Norwest Labs Edmonton Absorption Spectrometric Method, 3112 B Determination of Mercury in Oct 16,2002 Norwest Labs Edmonton Water by Cold Vapor Atomic Absor, 245.1 Determination of Trace Oct 16,2002 Norwest Labs Edmonton Elements in Waters and Wastes

Determination of Trace Oct 15,2002 Norwest Labs Edmonton Elements in Waters and Wastes

Inductively Coupled Plasma Oct 16,2002 Norwest Labs Edmonton (ICP) Method, 3 120 B

4500-H+ B

4500-NH3 G

by ICP-MS, 200.8

by ICP-MS, 200.8

Hanmei Li

Tina Knott

Tina Knott

Tina Knott

Tina Knott Gordon Grensmann

Kelly Restiaux

Kelly Restiaux

Gordon Grensmann

Brandee Bates

Hanmei Li

Hanmei Li

Stef Pavlyshyn

Stef Pavlyshyn

To Thong

To Thong

Jesse Dang


@NORWEST LABS

AgrKood 6 EnvlmnmenW Group Calgary Edmonton Wlnnipp Lathbrldga Surny

Methodology and Notes

Bill to: Kala Groundwater Consulting Project Report to: Kala Groundwater Consulting ID: 023 92

207,220 - 4 Avenue Name: Alto

Kamloops, BC, Canada V2C 3N6

Attn: Marie Bailey

Location: Winfield LSD: P.O.: Acct. Code: Sampled By: Perry

Nomest Labs #104,1957555 A Ave. Surrey, BC. v3s apa Phone: (604) 514-3322

(604) 514-3323 Fax:

Company: Kala Page: 17of17

Metals Trace (Total) in APHA * Inductively Coupled Plasma Oct 15, 2002 Norwest Labs Edmonton Jesse Dang

Solids Dissolved (Total, APHA * TDS Dried at 180 C, 2540 C Oct 18,2002 Norwest Labs Edmonton IOM McCloughan (ICP) Method, 3120 B i

- water

Fixed and Volatile) , Total Coliforms - MF APHA

Turbidity in Water APHA

Standard Total Coliform Oct 15,2002 Norwest Labs Calgary Brandee Bates Membrane Filter Procedure, 9222 B

B * Nephelometric Method, 2130 Oct 16,2002 Norwest Labs Edmonton Tina Knott

* Norwest method(s) is based on reference method References:

Aka. Env. Method APHA MDMES QuikChem Method Lachat Instruments US EPA

Alberta Environment Method Standard Methods for the Examination of Water and Wastewater Mthds for the Determination of Metals in Enviromental Smpls

US Environmental Protection Agency Test Methods Comments:

Norwest Labs strongly recommends that this report is not reproduced except in full.

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registered with the Coundl and the Association

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6cf s l f3 ’Z Control Number E 9 9 4 4 6

NOTE: Proper complatlon of this form 18 requlred In order to procood with inelyrlr See reversa for you! nearest Nomeat location and proper sampling protocol

Environmental Sample Information Sheet NORWEST

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I j [

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I

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Project ID; Project Name; f i I fo Project Location: ,h~,~lA Legal Location:

PO!!: Dale Required:--- Proj. Acct. Code:

0 2 3 9 2 Upon filling out lhis aectbn. cilenr accepb thai

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OCT 10 ‘02 11:46 P A G E . 002

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report of findings: groundwater supply investigation …

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