That there is sufficient quantity of groundwater from the water well for the intended use.

Transcription

1 Houle Chevrier Engineering Ltd. 32 Steacie Drive Ottawa, Ontario K2K 2A9 tel: fax: ArchNova Design Inc. 45 Banner Road Ottawa, Ontario January 12, 2017 Project: Attention: Mr. Zoran Mrdja, P.Eng. Re: Hydrogeological Investigation Proposed Rezoning 2403 Huntley Road Ottawa, Ontario This letter presents the results of a groundwater quality and quantity assessment carried out as part of a rezoning application at 2403 Huntley Road in Ottawa, Ontario (refer to Site Plan, Figure 1). A newly drilled onsite test well was used for this investigation. The purpose of the investigation was to confirm the following: That the quality of the well water meets the Ontario Drinking Water Standards and maximum treatable limits prescribed in Ontario Ministry of Environment and Climate Change (MOECC) Procedure D55; and, That there is sufficient quantity of groundwater from the water well for the intended use. BACKGROUND It is understood that a rezoning of the subject property, known as 2403 Huntley Road, is proposed. The subject property has an area of approximately 0.92 acres, is surrounded by residential/commercial land and is bounded by Fallowfield Road and Huntley Road (see Site Plan, Figure 1). In general, the subject property is flat, with grasses/trees covering the majority of the land surface. SITE GEOLOGY Surficial geology maps indicate that the site is underlain by glaciofluvial deposits, nearshore marine sediments (sand and reworked glaciofluvial) and organic deposits. Bedrock geology and drift thickness maps indicate the overburden is underlain by dolomite bedrock of the Oxford Formation at depths ranging from 15 to 25 metres. geotechnical environmental hydrogeology materials testing & inspection

2 WELL CONTRUCTION The water supply well was constructed at 2403 Huntley Road on January 5, 2017, by a licensed MOECC well contractor (Air Rock Drilling Co. Ltd.; License No. 1119) using a rotary air percussion drill rig. The approximate location of the water well is provided on the Site Plan, Figure 1. A copy of the MOECC Water Well Record and Certificate of Well Compliance is provided in Attachment A. The construction details from the MOECC Water Well Record are summarized in the following table: Well Construction Details Depth to Bedrock 16.5 metres Length of Well Casing 18.9 metres Length of Well Casing Below Ground Surface 18.3 metres Length of Well Casing Set Into Bedrock 1.8 metres Depth Water Found 35.0 & 38.7 & 46.9 metres Total Well Depth 48.8 metres GROUNDWATER QUANTITY A pumping test was carried out on the water well by a member of Houle Chevrier Engineering Ltd. staff on January 9, The well was pumped at a constant rate of about 42.3 litres per minute for a period of about eight (8) hours. The water from the pumping test was discharged to the ground surface a minimum of 3 metres from the test well such that the discharge flow was away from the well head. The maximum daily design flow for the development is estimated to be below 10,000 litres per day (based on information provided from ArchNova Design Inc.). The pumping test demonstrated that the onsite water well is capable of providing at least 20,300 litres over a period of approximately eight (8) hours. The pumping test volume was 2 times more than the proposed maximum of 10,000 litres per day, indicating that the pumping well is capable of producing significantly greater than 10,000 litres in a 24hour period. Report to: ArchNova Design Inc. Project: (January 12, 2017) 2

3 Water level measurements were taken at regular intervals throughout the pumping test using a Schlumberger Diver data recorder (15second interval) as well as manually using a water level tape. Water levels were also taken during the recovery phase of the pumping test (after the pump was turned off). The drawdown and recovery graph is provided in Attachment B. The initial drawdown in the well was approximately 0.46 metres and remained between 0.43 to 0.46 metres throughout the remaining eight (8) hours of pumping. Pumping was maintained at a constant rate of 45.3 litres per minute The transmissivity of the water supply aquifer was estimated from the pump test drawdown data using Aqtesolv version 4.5, a commercially available software program from HydroSOLVE Inc. An analysis of the drawdown data was carried out using the Theis method of analysis. The results of the Aqtesolv 4.5 analysis are provided in Attachment C. The Theis analysis indicates that the transmissivity of the water supply aquifer is approximately 700 m 2 /day. Due to the low amount of drawdown, the aquifer may not have been stressed enough to provide an accurate transmissivity value. The maximum drawdown in the water level of the well was about 0.46 metres following about two (2) minutes of pumping at a flow rate of 45.3 litres per minute. A qualitative evaluation of the drawdown pumping test data indicates minimal additional drawdown throughout the entire eight (8) hours of pumping. Based on the depth of the well and the water level after eight (8) hours of pumping, the remaining available drawdown in the well is approximately 39 metres. Following the pumping test, the water level in the well rapidly recovered to within 0.05 metres of the initial static water level. The quantity of water available from the well after eight (8) hours of pumping was more than sufficient for the proposed use. The conclusion that the quantity of water available from the well is more than sufficient is based on the volume of water pumped in combination with the recovery of the well, the minimal drawdown observed during pumping and the large remaining available drawdown at the end of the pumping test. The high sustained flow rate in combination with the available drawdown remaining indicates that the well should be capable of providing adequate quantities of groundwater for the proposed site use. Furthermore, the minimal decrease in water level during pumping and the recovery of the well following the pumping test indicates that the water well should be able to sustain repeated pumping in the long term. GROUNDWATER QUALITY Water samples were collected by Houle Chevrier Engineering Ltd. after four (4) and eight (8) hours of pumping and submitted to Paracel laboratory located in Ottawa for analysis of subdivision package parameters. Copies of the laboratory certificates of analysis for the water samples are provided in Attachment D. Report to: ArchNova Design Inc. Project: (January 12, 2017) 3

4 Field measurements were taken at regular intervals throughout the pumping test and are summarized in Table 1 following the text of this report. The results of the laboratory analysis on the water samples are summarized in Table 2 and Table 3 along with the applicable standards, guidelines and objectives provided in the Ontario Drinking Water Standards (ODWS). The following comments are provided regarding the drinking water quality and exceedances of the ODWS: Bacteriological Results Total chlorine measurements made at regular intervals during the pumping test confirmed that total chlorine concentrations in the well water were nondetectable at the time of bacteriological sampling. The results of the bacteriological analysis of the January 9, 2017 water samples indicate that the water samples met all the standards of the ODWS for bacteriological parameters. In addition, the concentration of other bacteria indicator species such as fecal coliform and Escherichia coli bacteria were determined to be nondetectable in all of the water samples. Based on the bacteriological testing, the water is suitable for consumption. Chemical Results The results of the chemical testing on the water samples indicate the operational guideline for hardness and the warning levels for sodium were exceeded in all of the water samples. The above noted exceedances are discussed in the follow sections: Hardness The hardness of the water samples ranged from 528 to 557 mg/l as CaCO 3, which exceeds the ODWS operational guideline for hardness. Water having a hardness above 100 milligrams per litre as CaCO 3 is often softened for domestic use. Water softeners are widely used throughout rural areas to treat hardness and there is no upper treatable limit for hardness. The ODWS indicates that hardness levels exceeding 200 mg/l as CaCO 3 is considered poor but tolerable and hardness levels exceeding 500 mg/l as CaCO 3 is considered to be unacceptable for most domestic purposes. The water from the test well is slightly above the level of 500 mg/l as CaCO 3 which can be treated using a water softener. Water softening by conventional sodium ion exchange water softeners that use sodium chloride may introduce relatively high concentrations of sodium into the drinking water, which may be of concern to persons on a sodium restricted diet. The use of potassium chloride in the water softener (which adds potassium to the water instead of sodium) could be considered as a Report to: ArchNova Design Inc. Project: (January 12, 2017) 4

5 means of keeping sodium concentrations in softened water at the background level. Alternatively, consideration could be given to providing a cold water bypass water line for drinking water purposes that is not treated by a water softener. Sodium The level of sodium in the water samples ranged from 133 to 143 mg/l and exceeded the ODWS warning level of 20 mg/l for persons on sodium restricted diets. The sodium levels remain below the ODWS aesthetic objective of 200 mg/l. Iron The iron (Fe) in the water samples decreased from 0.9 mg/l to <0.1 mg/l in the 4hour and 8 hour samples respectively. The 4hour sample exceeds the ODWS aesthetic objective of 0.3 mg/l. Iron is not generally considered a health issue and the aesthetic objective is set by appearance. The MOE Procedure D55 document indicates that iron concentrations up to 5.0 mg/l are considered treatable by conventional water softeners. The iron concentration is well below the treatable limit for water softeners provided by MOE Procedure D55 and the 8hour sample decreased to <0.1 mg/l which meets the ODWS. Therefore, iron is not of concern. Chloride Chloridecontaining minerals such as sodium, potassium, and calcium are common nontoxic materials in drinking water which can produce a detectable salty taste at concentrations exceeding the ODWS aesthetic objective of 250 mg/l. Elevated chloride concentrations can be caused by the weathering and leaching of sedimentary rocks, naturally occurring salts and/or contamination from road salt. Furthermore, elevated chloride concentrations can contribute to total dissolved solids in drinking water which may lead to corrosion of steel and aluminum. Chloride was measured at concentrations of 452 to 451 mg/l in the 4hour and 8hour samples respectively, which exceed the ODWS aesthetic objective. There are no healthbased guidelines for chlorides, which are generally not harmful to humans, but can be an indicator of poor groundwater quality. Turbidity The analysis of the water sample indicated decreasing turbidity levels of 14.0 and 0.5 NTU, in the 4hour and 8hour samples respectively. The 4hr sample exceeds the aesthetic objective of 5 NTU listed by the ODWS, however the turbidity greatly decreased to 0.5 in the 8hour sample which meets the ODWS. Total Dissolved Solids (TDS) Total dissolved solids (TDS) refer to inorganic substances such as chloride, sulphates, calcium, magnesium, and bicarbonates that are dissolved in water. High TDS levels can result in excessive hardness, taste, mineral deposition or corrosion. The TDS level in the water samples Report to: ArchNova Design Inc. Project: (January 12, 2017) 5

6 obtained ranged from 1150 to 1170 mg/l, which exceeds the ODWS aesthetic objective of 500 mg/l. Elevated levels of TDS can lead to problems associated with encrustation and corrosion. To determine the corrosive nature of the groundwater, the Langelier Saturation Index (LSI) was calculated for the samples obtained from the well. These values are based on the TDS, temperature, ph, alkalinity, and calcium observed in the sample. A copy of the calculation to determine the LSI value is provided in Attachment E. The LSI was calculated to be 0.1 using field measured groundwater temperature of 6.6 C. This indicates that the water is slightly corrosive but nonscale forming. The elevated TDS concentrations may be attributed to high chloride and sodium concentrations. Water treatment systems such as reverse osmosis, anion exchange, or distillation, can reduce chloride and sodium concentrations, thereby reducing TDS concentrations. CONCLUSIONS Based on the results of the pumping test carried out on January 9, 2017, the quantity of water from the test well is considered to be sufficient for the proposed use. The maximum drawdown in the well was approximately 0.46 metres and the well recovered rapidly when the pump was shut off. Based on the pumping test, the aquifer is highly transmissive. The test well has demonstrated that there is sufficient quantity of water available at the subject site for the proposed use. The water from this well meets all of the ODWS maximum acceptable concentrations, aesthetic objectives and operational guidelines for the parameters tested, with the following exceptions: The operational guidelines for total hardness; The aesthetic objectives for total dissolved solids and chloride; The aesthetic objectives for iron and turbidity (4hour sample only); and, Sodium warning level for persons on sodium restricted diets. The operational guideline exceedance for hardness is considered to be reasonably treatable through the use of conventional water softening. It should be noted that conventional water softeners could introduce elevated concentrations of sodium into the drinking water, therefore, a separate faucet, which bypasses the softener may be considered for drinking water purposes. Based on the results of our investigation, the water quality meets the ODWS guidelines, objectives and standards and/or maximum treatable limits (with the exception of hardness, total dissolved solids and chloride). Water treatment systems such as reverse osmosis, anion exchange or distillation can be used to reduce chloride and total dissolved solids concentrations in drinking water, thereby improving palatability. Report to: ArchNova Design Inc. Project: (January 12, 2017) 6

7 We trust that this report is sufficient for your purposes. If you have any questions or require additional information, please call. Andrius Paznekas, M.Sc Junior Hydrogeologist 12 Jan 2017 Shaun Pelkey, M.Sc.E., P.Eng. Principal Report to: ArchNova Design Inc. Project: (January 12, 2017) 7

8 LEGEND SUBJECT SITE APPROXIMATE TEST WELL LOCATION APPROXIMATE PROPERTY LINE HUNTLEY ROAD PROPOSED COMMERCIAL BUILDING Scale 1: m Houle Chevrier Engineering Ltd. 32 Steacie Drive Ottawa, ON Tel: (613) ottawa@hceng.ca Drawing SITE PLAN FALLOWFIELD ROAD Client I.A.Q.I Holdings Inc. Project Drwn by P.C. Date Chkd by A.P. Rev. JANUARY HYDROLOGICAL INVESTIGATION 2403 HUNTLEY ROAD OTTAWA, ONTARIO FIGURE 1 P:\0. Files\63000\ \Drafting\Drawings\ _SitePlan_V01_ dwg, SITE PLAN, 1/12/ :02:13 AM

9 Time Since Pumping Started (hr:min) Temp ( C) Table 1 Summary of Field Parameters Measured TW161 (Jan 9, 2017) Conductivity (µs/cm) ph Total Dissoled Solids (ppm) Turbidity (NTU) Chlorine (mg/l) 1: : : : : : * 0.0 7: * 0.0 8: * 0.0 * Turbidity samples were collected in the field and the measurements were made approximately 2 hours following the final 8hour sample. Date: January 2017 Project:

10 Table 2 Summary of Laboratory Parameters Analyzed (Jan 9, 2017) Parameter Units TW 164Hr TW 168Hr Ontario Drinking Water Standard Type of Standard N Escherichia coli CFU/100mL ND ND 0 MAC Total coliforms CFU/100mL ND ND 0 MAC Fecal Coliform CFU/100mL ND ND Heterotrophic Plate Count CFU/1mL Electrical Conductivity us/cm ph ph units OG Total Hardness (as CaC0 3 ) mg/l OG Total Dissolved Solids (TDS) mg/l AO Alkalinity (as CaC0 3 ) mg/l OG Fluoride (F) mg/l <0.1 < MAC Chloride (Cl) mg/l AO Nitrate as N (NO 3 ) mg/l (1) MAC Nitrite as N (NO 2 ) mg/l <0.1 < (1) MAC Sulphate (SO 4 ) mg/l AO Tannins and Lignins mg phenol/l <0.1 <0.1 Ammonia as N (NH 3 ) mg/l Total Kjeldahl Nitrogen (TKN) mg/l Organic Nitrogen (TKN Ammonia) mg/l OG 200 m Dissolved Organic Carbon (DOC) mg/l AO Phenols mg/l <0.001 <0.001 Sulphide (S 2 ) mg/l <0.02 < AO Colour TCU <2 <2 5 AO Turbidity NTU AO Calcium (Ca) mg/l Magnesium (Mg) mg/l Sodium (Na) mg/l (2) AO Potassium (K) mg/l Iron (Fe) mg/l 0.9 < AO Manganese (Mn) mg/l AO NOTES: MAC = Maximum Acceptable Concentration / ND = Not Detectable / AO = Aesthetic Objective / OG = Operational Guideline 1. Combined Nitrate and Nitrite should not exceed 10 mg/l 2. Sodium concentrations exceeding 20 mg/l should be reported to the local Medical Officer of Health Date: January 2017 Project:

11 Table 3 Summary of Laboratory Parameters Analyzed (Jan 9, 2017) Metals Parameter Units TW 168Hr Ontario Drinking Water Standard Type of Standard N Aluminum mg/l OG Antimony mg/l < MAC Arsenic mg/l < MAC Barium mg/l MAC Beryllium mg/l < Boron mg/l MAC Cadmium mg/l < MAC Chromium mg/l < MAC Cobalt mg/l Copper mg/l AO Lead mg/l MAC Molybdenum mg/l < Nickel mg/l Selenium mg/l < MAC Silver mg/l < Thallium mg/l <0.001 Tin mg/l <0.1 Uranium mg/l MAC 200 m Vanadium mg/l < Zinc mg/l AO Mercury mg/l < MAC Chromium VI mg/l <0.010 NOTES: MAC = Maximum acceptable concentration AO = Aesthetic objective OG = Operational Guideline Date: January 2017 Project:

12 ATTACHMENTS A MOE Water Well Record and Certificate of Well Compliance Report to: ArchNova Design Inc. Project: (January 12, 2017)

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15 ATTACHMENTS B Drawdown and Recovery Data Report to: ArchNova Design Inc. Project: (January 12, 2017)

16 Pumping Test Analysis Report Project: Hydrogeological Investigation Project Number: Client: ArchNova Design Inc. Location: 2403 Huntley Road, Ottawa, Ontario Test Conducted by: AP Pumping Well: TW 161 PTest Date: Jan 9, 2017 Analysis Date: Jan 10, 2017 Analysis Performed by: AP Aquifer Thickness: 40 m Casing Height: 0.52 metres Discharge: Constant 45.3 L/min Duration: 8 hours Measurement Rate: 15 seconds Pumping Test Data: Drawdown and Recovery Data Logger Manual Measurements 9.40 Water Level (metres b.g.s.) Time (minutes) Initial Water Level: 9.02 metres (below ground surface)

17 ATTACHMENTS C Theis Analysis of Drawdown Data Report to: ArchNova Design Inc. Project: (January 12, 2017)

18 Pumping Test Analysis Report Project: Hydrogeological Investigation Project Number: Client: ArchNova Design Inc. Location: 2403 Huntley Road, Ottawa, Ontario PTest Date: Jan 9, 2017 Test Conducted by: AP Analysis Performed by: AP Aquifer Thickness: 40 m Pumping Well: TW 161 Method: Theis Analysis Discharge: Constant 45.3 L/min Analysis Date: Jan 10, 2017 Duration: 8 hours Measurement Rate: 15 seconds Pumping Test Analysis: Theis Estimated Transmissivity: 700 m 2 /day or 8 x 10 3 m 2 /s

19 ATTACHMENTS D Laboratory Certificates of Analysis Report to: ArchNova Design Inc. Project: (January 12, 2017)

20 St. Laurent Blvd Ottawa, ON, K1G 4J Certificate of Analysis Houle Chevrier 32 Steacie Drive Kanata, ON K2K 2A9 Attn: Andrius Paznekas Client PO: Project: Custody: 5919 Report Date: 12Jan2017 Order Date: 9Jan2017 Order #: This Certificate of Analysis contains analytical data applicable to the following samples as submitted: Paracel ID Client ID PW164hr PW168hr Approved By: Mark Foto, M.Sc. Lab Supervisor Any use of these results implies your agreement that our total liabilty in connection with this work, however arising, shall be limited to the amount paid by you for this work, and that our employees or agents shall not under any circumstances be liable to you in connection with this work. Page 1 of 8

21 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Analysis Summary Table Analysis Method Reference/Description Extraction Date Analysis Date Alkalinity, total to ph 4.5 EPA Titration to ph Jan17 10Jan17 Ammonia, as N EPA Auto Colour 11Jan17 11Jan17 Anions EPA IC 10Jan17 11Jan17 Chromium, hexavalent water MOE E3056 colourimetric 11Jan17 11Jan17 Colour SM2120 Spectrophotometric 10Jan17 10Jan17 Conductivity EPA 9050A C 10Jan17 10Jan17 Dissolved Organic Carbon MOE E3247B Combustion IR, filtration 11Jan17 11Jan17 E. coli MOE E Jan17 10Jan17 Fecal Coliform SM 9222D 10Jan17 10Jan17 Heterotrophic Plate Count SM 9215C 10Jan17 10Jan17 Mercury by CVAA EPA Cold Vapour AA 11Jan17 11Jan17 Metals, ICPMS EPA ICPMS 10Jan17 10Jan17 ph EPA ph C 10Jan17 10Jan17 Phenolics EPA Auto Colour, 4AAP 11Jan17 11Jan17 Subdivision Package Hardness as CaCO3 10Jan17 11Jan17 Sulphide SM 4500SE Colourimetric 11Jan17 11Jan17 Tannin/Lignin SM 5550B Colourimetric 10Jan17 10Jan17 Total Coliform MOE E Jan17 10Jan17 Total Dissolved Solids SM 2540C gravimetric, filtration 10Jan17 11Jan17 Total Kjeldahl Nitrogen EPA Auto Colour, digestion 11Jan17 11Jan17 Turbidity SM 2130B Turbidity meter 10Jan17 10Jan17 Page 2 of 8

22 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Client ID: PW164hr PW168hr Sample Date: 09Jan17 09Jan17 Sample ID: MDL/Units Drinking Water Drinking Water Microbiological Parameters E. coli 1 CFU/100 ml ND ND Fecal Coliforms 1 CFU/100 ml ND ND Total Coliforms 1 CFU/100 ml ND ND Heterotrophic Plate Count 10 CFU/mL General Inorganics Alkalinity, total 5 mg/l Ammonia as N 0.01 mg/l Dissolved Organic Carbon 0.5 mg/l Colour 2 TCU <2 <2 Conductivity 5 us/cm Hardness mg/l ph 0.1 ph Units Phenolics mg/l <0.001 <0.001 Total Dissolved Solids 10 mg/l Sulphide 0.02 mg/l <0.02 <0.02 Tannin & Lignin 0.1 mg/l <0.1 <0.1 Total Kjeldahl Nitrogen 0.1 mg/l Turbidity 0.1 NTU Anions Chloride 1 mg/l Fluoride 0.1 mg/l <0.1 <0.1 Nitrate as N 0.1 mg/l Nitrite as N 0.05 mg/l <0.05 <0.05 Sulphate 1 mg/l Metals Mercury mg/l < Aluminum mg/l Antimony mg/l < Arsenic mg/l <0.001 Barium mg/l Beryllium mg/l < Boron 0.01 mg/l 0.06 Cadmium mg/l < Calcium 0.1 mg/l Chromium mg/l <0.001 Page 3 of 8

23 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Client ID: PW164hr PW168hr Sample Date: 09Jan17 09Jan17 Sample ID: MDL/Units Drinking Water Drinking Water Chromium (VI) mg/l <0.010 Cobalt mg/l Copper mg/l Iron 0.1 mg/l 0.9 <0.1 Lead mg/l Magnesium 0.2 mg/l Manganese mg/l Molybdenum mg/l < Nickel mg/l Potassium 0.1 mg/l Selenium mg/l <0.001 Silicon 0.01 mg/l 4.60 Silver mg/l < Sodium 0.2 mg/l Strontium 0.01 mg/l 3.84 Thallium mg/l <0.001 Tin 0.01 mg/l <0.01 Titanium mg/l <0.005 Tungsten 0.01 mg/l <0.01 Uranium mg/l Vanadium mg/l < Zinc mg/l Page 4 of 8

24 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Method Quality Control: Blank Analyte Result Reporting Limit Units Source Result %REC %REC Limit RPD RPD Limit Notes Anions Chloride ND 1 mg/l Fluoride ND 0.1 mg/l Nitrate as N ND 0.1 mg/l Nitrite as N ND 0.05 mg/l Sulphate ND 1 mg/l General Inorganics Alkalinity, total ND 5 mg/l Ammonia as N ND 0.01 mg/l Dissolved Organic Carbon ND 0.5 mg/l Colour ND 2 TCU Conductivity ND 5 us/cm Phenolics ND mg/l Total Dissolved Solids ND 10 mg/l Sulphide ND 0.02 mg/l Tannin & Lignin ND 0.1 mg/l Total Kjeldahl Nitrogen ND 0.1 mg/l Turbidity ND 0.1 NTU Metals Mercury ND mg/l Aluminum ND mg/l Antimony ND mg/l Arsenic ND mg/l Barium ND mg/l Beryllium ND mg/l Boron ND 0.01 mg/l Cadmium ND mg/l Calcium ND 0.1 mg/l Chromium (VI) ND mg/l Chromium ND mg/l Cobalt ND mg/l Copper ND mg/l Iron ND 0.1 mg/l Lead ND mg/l Magnesium ND 0.2 mg/l Manganese ND mg/l Molybdenum ND mg/l Nickel ND mg/l Potassium ND 0.1 mg/l Selenium ND mg/l Silicon ND 0.01 mg/l Silver ND mg/l Sodium ND 0.2 mg/l Strontium ND 0.01 mg/l Thallium ND mg/l Tin ND 0.01 mg/l Titanium ND mg/l Tungsten ND 0.01 mg/l Uranium ND mg/l Vanadium ND mg/l Zinc ND mg/l Microbiological Parameters E. coli ND 1 CFU/100 ml Fecal Coliforms ND 1 CFU/100 ml Total Coliforms ND 1 CFU/100 ml Heterotrophic Plate Count ND 10 CFU/mL Page 5 of 8

25 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Method Quality Control: Duplicate Analyte Anions Result Reporting Limit Units Source Result Chloride mg/l Fluoride mg/l Nitrate as N mg/l Nitrite as N ND 0.05 mg/l ND 20 Sulphate mg/l General Inorganics %REC %REC Limit Alkalinity, total mg/l Ammonia as N mg/l Dissolved Organic Carbon mg/l Colour ND 2 TCU ND 12 Conductivity us/cm ph ph Units Phenolics ND mg/l ND 10 Total Dissolved Solids mg/l Sulphide ND 0.02 mg/l ND 10 Tannin & Lignin ND 0.1 mg/l ND Total Kjeldahl Nitrogen mg/l Turbidity NTU Metals Mercury ND mg/l ND Aluminum mg/l Antimony ND mg/l ND Arsenic ND mg/l ND Barium mg/l Beryllium ND mg/l ND Boron ND 0.01 mg/l ND Cadmium ND mg/l ND Calcium mg/l Chromium (VI) ND mg/l ND 20 Chromium ND mg/l ND Cobalt ND mg/l ND Copper mg/l Iron ND 0.1 mg/l ND Lead mg/l Magnesium mg/l Manganese ND mg/l ND Molybdenum ND mg/l ND Nickel ND mg/l ND Potassium mg/l Selenium ND mg/l ND Silicon mg/l Silver ND mg/l ND Sodium mg/l Thallium ND mg/l ND Tin ND 0.01 mg/l ND 20 Titanium ND mg/l ND Tungsten ND 0.01 mg/l ND Uranium ND mg/l ND Vanadium ND mg/l ND Zinc mg/l Microbiological Parameters E. coli ND 1 CFU/100 ml ND 30 Fecal Coliforms ND 1 CFU/100 ml 30 Total Coliforms ND 1 CFU/100 ml ND 30 Heterotrophic Plate Count CFU/mL RPD RPD Limit Notes Page 6 of 8

26 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Method Quality Control: Spike Analyte Anions Result Reporting Limit Units Source Result %REC %REC Limit Chloride mg/l Fluoride mg/l Nitrate as N mg/l Nitrite as N mg/l ND Sulphate mg/l General Inorganics Ammonia as N mg/l Dissolved Organic Carbon mg/l Phenolics mg/l ND Total Dissolved Solids mg/l Sulphide mg/l ND Tannin & Lignin mg/l ND Total Kjeldahl Nitrogen mg/l Metals Mercury mg/l ND Aluminum 62.8 ug/l Antimony 42.6 ug/l Arsenic 47.8 ug/l Barium 62.4 ug/l Beryllium 44.5 ug/l Boron 45.3 ug/l QM07 Cadmium 45.1 ug/l Calcium 9800 ug/l Chromium (VI) mg/l ND Chromium 47.2 ug/l Cobalt 46.6 ug/l Copper 74.7 ug/l QM07 Iron 895 ug/l Lead 45.8 ug/l Magnesium 3490 ug/l QM07 Manganese 48.5 ug/l Molybdenum 40.5 ug/l QM07 Nickel 45.5 ug/l Potassium 1590 ug/l Selenium 45.5 ug/l Silicon 47.0 ug/l Silver 41.4 ug/l Sodium 1020 ug/l Thallium 46.3 ug/l Tin 43.9 ug/l ND Titanium 48.0 ug/l Tungsten 42.3 ug/l Uranium 47.2 ug/l Vanadium 48.8 ug/l Zinc 77.5 ug/l RPD RPD Limit Notes Page 7 of 8

27 Order #: Certificate of Analysis Client: Houle Chevrier Client PO: Report Date: 12Jan2017 Order Date: 9Jan2017 Project Description: Qualifier Notes : Sample Qualifiers : QC Qualifiers : QM07 : Sample Data Revisions None The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on other acceptable QC. Work Order Revisions / Comments : None Other Report Notes : n/a: not applicable ND: Not Detected MDL: Method Detection Limit Source Result: Data used as source for matrix and duplicate samples %REC: Percent recovery. RPD: Relative percent difference. Page 8 of 8

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29 ATTACHMENTS E Langelier Saturation Index Calculation Report to: ArchNova Design Inc. Project: (January 12, 2017)

30 Langelier Saturation Index Calculation TW168hr Inputs ph = 7.6 Total Dissolved Solids = 1170 Calcium (as CaCO 3 ) = 141 Note: Ca (as CaCO3) = 2.5 x Ca Alkalinity (as CaCO 3 ) = 301 Temperature ( o C) = 6.6 Where Langelier Saturation Index (LSI) is defined as: LSI = ph ph s Where: ph s = A + B C + D And: A = log 10 TDS 1 10 B = log 10 Temp C = log 10 Calcium 0.4 D = log 10 Alkalinity Output: A = 0.21 B = 2.45 C = 1.75 D = 2.48 ph s = 7.73 LSI = 0.1 LSI Value Indication 2.0 to 0.5 Serious corrosion 0.5 to 0.0 Slight corrosion but nonscale forming LSI = 0 Balanced but corrosion possible 0.0 to 0.5 Slightly scale forming and corrosive 0.5 to 2 Scale forming but non corrosive