technical memorandum · 2020. 2. 6. · from four locations along the embankment (ebm1, ebm2, ebm4...

TECHNICAL MEMORANDUM

Issue Date: February 4, 2020 File: 2017-8011.000.001

To: Dan Bings, Ministry of Environment and

Climate Strategy Previous Issue Date: January 03, 2020

From: Courtney Barr, B.Sc.

Client: Anmore Estates Ltd. / LMS3080

Project Name: Anmore Estates Hydrogeological Investigation Project No.: 2017-8011.000.001

Subject: Results of January 2020 Water Sampling

1 INTRODUCTION

Anmore Green Estates (AGE) is a 51-home community in Anmore, BC (Figure 1). AGE has a private community

wastewater treatment system that consists of a treatment plant and two septic disposal fields. The wastewater system is

authorized under Ministry of Environment Permit PE-4606.1 Portions of AGE’s property boundary form the jurisdictional

boundary between the Village of Anmore (Anmore) and the City of Port Moody (Port Moody).

After the construction of the AGE community, the properties directly downslope of the AGE septic fields were

developed into two schools and a recreation area. The development of these lands resulted in significant cuts into the

slope directly below the septic fields. Since then, there have been reports of septic effluent daylighting on school

grounds during the wet season.2 Daylighting effluent is directed into stormwater swales and catch basins that were

installed below the septic fields during construction of the schools. The outfalls for the catch basins and pipe networks

are into two nearby creeks, Turner’s Creek West and Wilke’s Creek.

A Minister’s Order prepared by the Ministry of Environment and Climate Change Strategy (ENV), dated August 16, 2018,

concluded that sewage from AGE is causing pollution. The Order states that professional engineers concluded there was

no viable option for continued on-site disposal and that efforts should be focussed on connecting AGE’s septic to a

nearby municipal sewer line owned by Port Moody. On October 11, 2019, the Ministry of Municipal Affairs and Housing

(MAH) and ENV advised AGE and Anmore that a facilitator had been secured to develop and present a clear

understanding and establish a path forward for the connection.3

Concurrently, ENV has requested that AGE continue the water quality testing program that was previously designed and

implemented during the 2018-2019 wet season. The testing program is designed to characterize the impacts of sewage

breakouts from the disposal fields on surface water. As per the requirements of ENV Pollution Abatement Order 109670

(the Order)4, the 2019-2020 testing program requires samples to be collected from the catch basins where most of

effluent is thought to be directed, and in any areas of ponding or where seepages are observed in the embankment.

1 British Columbia Ministry of Water Lands and Air Protection (MWLAP). 2002. Permit PE-04606, in: Province of British Columbia (Ed.), PE-4606. 2 Ministry of Environment and Climate Change Strategy (ENV). 2018. Minister's Order File: 04606. Minister’s Order – Liquid Waste Management Plan. 3 Detailed information pertaining to recent updates is available at www.anmoregreenestates.ca. 4 Ministry of Environment and Climate Change Strategy (ENV). 2019. Minister’s Order: 109670, File: 4606 – Amended Pollution Abatement Order. Dated November 2, 2019


Memo To: Dan Bings, Ministry of Environment and Climate Strategy, Anmore Estates Ltd. / LMS3080

February 04, 2020

Sampling of Wilke’s and Turner’s Creeks is no longer required, as per the updated Order (November 2, 2019). The

sampling period specified is from November 1, 2019 to April 30, 2020, and sampling must occur at least once per month.

The purpose of this memo is to present the methods and results of the third 2019-2020 sampling event (January 2020).

No interpretation or discussion is provided at this time.

2 METHODS

On January 23, 2020, following a period of wet weather, Associated visited the site and collected water samples from

eight sites in areas located immediately to the south of the western septic field, and from within the embankment area

on the school grounds (see selected Photographs 1-4 and Figure 2). As per the direction of the Order, samples were

collected following provincial guidelines5 from the catch basins where most of the effluent is believed to be directed, and

from any area where ponding or seepage was observed. The eight sampling site locations are shown in Figure 2, and

included a shallow monitoring well (BH1) at the southern edge of the western septic field which usually does not have

sufficient depth of water to sample from, an area of pooled water (Pool 1), flow into catch basin 2 (CB2/Pool1) seepage

from four locations along the embankment (EBM1, EBM2, EBM4 and EBM5), and from water flowing at the base of the

fenced off embankment (Path1) which flows into catch basin 3.

Sampling included water quality testing for key nutrient and septic parameters, as per the Order. Field measurements of

pH, conductivity, temperature, and dissolved oxygen were also collected. The samples were collected and taken to

CARO Analytical Services (CARO) (an accredited laboratory) for analysis of ammonia-N, nitrate-N, nitrite-N, total

Kjeldahl nitrogen, organic nitrogen, total nitrogen, total phosphorus, chloride, and E. coli.

3 RESULTS

The sample locations and water quality results from the January 2020 sampling event plus the results from November

and December 2019 sampling events are presented in Table 1. The sample locations are shown on Figure 2.

All parameters were analysed within their recommended hold times.

Attachments

Site Photographs

Figure 1: Site Overview

Figure 2: Photos of selected sampling locations, taken January 23, 2020

Table 1: November 2019 to January 2020 Results

CARO Laboratory Analytical Report for January 2020 samples

5 BC Ministry of Environment. 2013. B.C. Field Sampling Manual, 2013 Edition. Available at: https://www2.gov.bc.ca/gov/content/environment/research-monitoring-reporting/monitoring/laboratory-standards-quality-assurance/bc-field-sampling-manual

https://www2.gov.bc.ca/gov/content/environment/research-monitoring-reporting/monitoring/laboratory-standards-quality-assurance/bc-field-sampling-manual

https://www2.gov.bc.ca/gov/content/environment/research-monitoring-reporting/monitoring/laboratory-standards-quality-assurance/bc-field-sampling-manual



February 04, 2020

Photo 1: Shallow monitoring well BH1



February 04, 2020

Photo 2: CB2/Pool1 – Flow into CB2 form Pool 1 and overland runoff



February 04, 2020

Photo 3: EBM5 – Flow from near base of embankment close to caretakers building. View south-west.



February 04, 2020

Photo 4: Path1 – Water flowing into CB3 at base of embankment next to path. View east.

¯

Anmore Green Estates LtdPROJECT NO.:DATE:

2017-8011.000.000

DAJanuary 2017

Anmore Green EstatesDRAWN BY:

FIGURE 1: PROPERTY OVERVIEW

prope

rty ov

erview

.mxd

/ 1/19

/2018

/ 1:28

:28 PM

0 30m

Property BoundaryAGE Property

School District43 Property

School District 43 Property(Port Moody Joint Use Agreement)

School District 43 Property(Port Moody Joint Use Agreement)



Port MoodyAnmore

Reserve Field

Western Field Eastern Field

!>

!>

Potential Connection (SD 43 pipe)

Potential Connection (Port Moody pipe)

!DBreakout Location (E. coli and fecalcoliform levels of 160,000 MPN/g)

Pool 1!D

Path 1 !D

EBM 1!D

CB2/Pool 1!D

Western Field

Eastern Field

EBM 2!D

BH1!D

EBM 5!D

EBM 4!D

0 50

MetersAnmore Green Estates

PROJECT NO.:DATE:

2017-8011.000.001

DAFebruary 2020

DRAWN BY:

FIGURE 2: SURFACE WATER SAMPLELOCATIONS - JANUARY 23, 2020

samp

ling l

ocati

ons j

an 20

20.m

xd / 2

/4/20

20 / 2

:59:18

PM

Septic Field

¯

Sample Location!D


Table 1: Surface water results November 2019 to January 2020

Sample location

Sample

date

Sample

time

Field result Laboratory result

pH Conductivity

(µS/cm) Temp (°C)

Dissolved Oxygen (mg/L)

Chloride (mg/L)

Ammonia- N

(mg/L)

Nitrate-N (mg/L)

Nitrite-N (mg/L)

Nitrate + Nitrite (mg/L)

Organic Nitrogen

(mg/L)

Total Kjeldahl Nitrogen

(mg/L)

Total Nitrogen

(mg/L)

Total Phosphorus

(mg/L)

E. coli (CFU/100

mL)

Pool 1 2

9-N

ov

-19

14:30 5.76 152 1.2 21.05 22.4 7.980 4.050 0.03 4.08 1.700 9.680 9.680 0.5990 38

CB2 14:50 6.12 112 4.6 0.67 16.30 3.550 1.320 0.016 1.33 0.200 3.750 5.080 0.1690 3

CB3 15:25 6.83 120 4.7 8.07 9.14 0.099 0.276 <0.010 0.276 0.244 0.343 0.619 0.0308 20

EBM1 15:10 6.02 176 8.6 2.12 9.24 2.240 0.036 <0.010 0.0364 0.574 2.810 2.850 0.1070 <1

Pool 1

19

-De

c-1

9

10:25 5.99 134 7.1 5.13 12.70 6.300 1.190 0.012 1.2 0.652 6.950 8.160 0.7550 150

Pool 1a1 10:25 5.99 134 7.1 5.13 13.00 6.400 1.180 <0.010 1.18 0.470 6.870 8.060 0.6920 148

CB1 11:40 6.35 170 6.9 10.21 3.44 0.140 0.204 <0.010 0.204 0.141 0.281 0.485 0.0102 <1

CB2 10:10 5.93 101 6.5 7.36 8.80 3.910 1.040 <0.010 1.04 0.900 4.810 5.850 0.5000 90.8

CB2A 10:10 5.97 124 6.6 7.13 11.30 5.580 1.060 0.013 1.07 0.646 6.220 7.290 0.6970 67.6

CB3 11:15 6.16 97 7.5 7.70 5.48 0.148 0.512 <0.010 0.512 0.632 0.780 1.290 0.0830 <1.0

EBM1 11:05 6.09 178 9.1 5.58 7.96 2.170 0.089 <0.010 0.089 0.402 2.570 2.660 0.0096 <3.0

EBM2 11:30 5.90 116 9.3 6.54 6.52 0.680 0.109 <0.010 0.109 1.480 2.160 2.270 0.1590 1

SF1 10:45 6.50 48 7.5 8.09 2.51 0.219 0.238 <0.010 0.238 0.877 1.100 1.330 0.1830 4.1

BH1

23

-Jan

-20

20

13:30 4.95 136 8.10 6.65 9.90 1.97 0.215 <0.010 0.215 4.92 6.89 7.11 1.60 130

CB2/Pool1 13:55 5.54 82 7.30 8.30 19.10 0.674 0.488 <0.010 0.488 <0.050 0.663 1.15 0.111 27

Pool1 14:05 5.60 74 7.10 6.90 7.75 1.42 1.50 0.023 1.52 0.181 1.60 3.12 0.353 60

EBM1 14:25 6.12 150 9.20 3.18 8.75 1.72 0.170 <0.010 0.170 <0.050 1.71 1.88 0.0096 <10

EBM2 15:30 6.00 123 9.00 1.15 5.31 1.13 0.018 <0.010 0.0180 0.946 2.08 2.10 0.249 <10

EBM4 14:50 5.88 36 5.90 4.76 0.91 0.112 0.056 <0.010 0.0563 0.200 0.312 0.368 0.0519 <10

EBM5 15:05 6.29 54 7.50 11.33 1.28 0.113 0.028 <0.010 0.0276 0.791 0.904 0.932 0.240 <10

Path1 14:30 6.29 45 5.80 10.40 0.62 0.104 0.051 <0.010 0.0514 0.218 0.322 0.373 0.0552 <10

Notes: Blue text – sample was prepared and/or analysed past the recommended holding time Underlined text – unit of measurement is MPN/100 mL < - value less than the laboratory reporting limit 1 Duplicate sample of Pool 1

REPORTED TO Associated Environmental Consultants Inc. (Vernon)

Vernon, BC V1T 9P9

Authorized By:

#110 4011 Viking Way Richmond, BC V6V 2K9 | #102 3677 Highway 97N Kelowna, BC V1X 5C3 | 17225 109 Avenue Edmonton, AB T5S 1H7

1-888-311-8846 | www.caro.ca

#200 - 2800 29th Street

Team Lead, Client Service

Alana Crump

CERTIFICATE OF ANALYSIS

Introduction:

CARO Analytical Services is a testing laboratory full of smart, engaged scientists driven to make the world a safer and

healthier place. Through our clients' projects we become an essential element for a better world. We employ methods

conducted in accordance with recognized professional standards using accepted testing methodologies and quality

control efforts. CARO is accredited by the Canadian Association for Laboratories Accreditation (CALA) to ISO

17025:2005 for specific tests listed in the scope of accreditation approved by CALA.

Big Picture Sidekicks

You know that the sample you collected after

snowshoeing to site, digging 5 meters, and

racing to get it on a plane so you can submit it

to the lab for time sensitive results needed to

make important and expensive decisions

(whew) is VERY important. We know that too.

We've Got Chemistry

It�s simple. We figure the more you

enjoy working with our fun and

engaged team members; the more

likely you are to give us continued

opportunities to support you.

Ahead of the Curve

T h r o u g h r e s e a r c h , r e g u l a t i o n

knowledge, and instrumentation, we

are your analytical centre for the

technica l knowledge you need,

BEFORE you need it, so you can stay

up to date and in the know.

ATTENTION Nicole Penner

PO NUMBER

PROJECT 2017-8011

RECEIVED / TEMP 2020-01-23 16:28 / 6°C

REPORTED 2020-01-30 10:47

PROJECT INFO Anmore Hydrogeo COC NUMBER B68660

WORK ORDER 0011502

If you have any questions or concerns, please contact me at [email protected]

Page 1 of 8Rev 2017-11-07 Caring About Results, Obviously. Page 1 of 8


REPORTED 2020-01-30 10:47

TEST RESULTS

PROJECT 2017-8011

WORK ORDER 0011502

Analyte Result Guideline RL Units Analyzed Qualifier

BH1 (0011502-01) | Matrix: Water | Sampled: 2020-01-23 13:30

Anions

mg/L9.90Chloride 2020-01-240.10AO 250

mg/L0.215Nitrate (as N) 2020-01-240.010MAC = 10

mg/L< 0.010Nitrite (as N) 2020-01-240.010MAC = 1

Calculated Parameters

mg/L0.215Nitrate+Nitrite (as N) N/A0.0100N/A

mg/L7.11Nitrogen, Total N/A0.200N/A

mg/L4.92Nitrogen, Organic N/A0.200N/A

General Parameters

mg/L1.97Ammonia, Total (as N) 2020-01-280.020None Required

mg/L6.89Nitrogen, Total Kjeldahl 2020-01-280.050N/A

mg/L1.60Phosphorus, Total (as P) 2020-01-290.0020N/A

Microbiological Parameters

CFU/100 mL130E. coli 2020-01-241MAC = 0

CB2/Pool 1 (0011502-02) | Matrix: Water | Sampled: 2020-01-23 13:55

Anions

mg/L19.1Chloride 2020-01-240.10AO 250






mg/L< 0.0500Nitrogen, Organic N/A0.0500N/A

General Parameters





CFU/100 mL27E. coli 2020-01-241MAC = 0

Pool 1 (0011502-03) | Matrix: Water | Sampled: 2020-01-23 14:05

Anions

mg/L7.75Chloride 2020-01-240.10AO 250


mg/L0.023Nitrite (as N) 2020-01-240.010MAC = 1



REPORTED 2020-01-30 10:47

TEST RESULTS

PROJECT 2017-8011

WORK ORDER 0011502


Pool 1 (0011502-03) | Matrix: Water | Sampled: 2020-01-23 14:05, Continued





General Parameters





CFU/100 mL60E. coli 2020-01-241MAC = 0

EBM 1 (0011502-04) | Matrix: Water | Sampled: 2020-01-23 14:25

Anions

mg/L8.75Chloride 2020-01-240.10AO 250






mg/L< 0.0500Nitrogen, Organic N/A0.0500N/A

General Parameters





CFU/100 mL<10E. coli 2020-01-241MAC = 0

PATH 1 (0011502-05) | Matrix: Water | Sampled: 2020-01-23 14:30

Anions

mg/L0.62Chloride 2020-01-240.10AO 250









REPORTED 2020-01-30 10:47

TEST RESULTS

PROJECT 2017-8011

WORK ORDER 0011502


PATH 1 (0011502-05) | Matrix: Water | Sampled: 2020-01-23 14:30, Continued

General Parameters





CFU/100 mL<10E. coli 2020-01-241MAC = 0


Anions

mg/L0.91Chloride 2020-01-240.10AO 250







General Parameters





CFU/100 mL<10E. coli 2020-01-241MAC = 0


Anions

mg/L1.28Chloride 2020-01-240.10AO 250







General Parameters






REPORTED 2020-01-30 10:47

TEST RESULTS

PROJECT 2017-8011

WORK ORDER 0011502


EBM 5 (0011502-07) | Matrix: Water | Sampled: 2020-01-23 15:05, Continued


CFU/100 mL<10E. coli 2020-01-241MAC = 0


Anions

mg/L5.31Chloride 2020-01-240.10AO 250







General Parameters





CFU/100 mL<10E. coli 2020-01-241MAC = 0



REPORTED 2020-01-30 10:47

APPENDIX 1: SUPPORTING INFORMATION

PROJECT 2017-8011

WORK ORDER 0011502

Technique LocationAnalysis Description Method Ref.

Ammonia, Total in Water SM 4500-NH3 G*

(2017)

Automated Colorimetry (Phenate) Kelowna

Anions in Water SM 4110 B (2017) Ion Chromatography Kelowna

E. coli in Water SM 9223 B (2017) Enzyme Substrate Endo Agar Sublet

Nitrogen, Total Kjeldahl in Water SM 4500-Norg D*

(2017)

Block Digestion and Flow Injection Analysis Kelowna

Phosphorus, Total in Water SM 4500-P B.5* (2011)

/ SM 4500-P F (2017)

Persulfate Digestion / Automated Colorimetry (Ascorbic Acid) Kelowna

Note: An asterisk in the Method Reference indicates that the CARO method has been modified from the reference method

Glossary of Terms:

RL Reporting Limit (default)

Less than the specified Reporting Limit (RL) - the actual RL may be higher than the default RL due to various factors<

Less than the specified Reporting Limit (RL) - the actual RL may be higher than the default RL due to various factors<1

Aesthetic ObjectiveAO

Colony Forming Units per 100 millilitresCFU/100 mL

Maximum Acceptable Concentration (health based)MAC

Milligrams per litremg/L

SM Standard Methods for the Examination of Water and Wastewater, American Public Health Association

Guidelines Referenced in this Report:

Guidelines for Canadian Drinking Water Quality (Health Canada, Feb 2017)

Note: In some cases, the values displayed on the report represent the lowest guideline and are to be verified by the end user

The results in this report apply to the samples analyzed in accordance with the Chain of Custody document. This

analytical report must be reproduced in its entirety. CARO is not responsible for any loss or damage resulting directly or

indirectly from error or omission in the conduct of testing. Liability is limited to the cost of analysis. Samples will be

disposed of 30 days after the test report has been issued unless otherwise agreed to in writing.

Results in Bold indicate values that are above CARO's method reporting limits. Any results that are above regulatory

limits are highlighted red. Please note that results will only be highlighted red if the regulatory limits are included on the

CARO report. Any Bold and/or highlighted results do not take into account method uncertainty. If you would like method

uncertainty or regulatory limits to be included on your report, please contact your Account Manager:[email protected]

General Comments:



REPORTED 2020-01-30 10:47

APPENDIX 2: QUALITY CONTROL RESULTS

PROJECT 2017-8011

WORK ORDER 0011502

The following section displays the quality control (QC) data that is associated with your sample data. Groups of samples are prepared

in �batches� and analyzed in conjunction with QC samples that ensure your data is of the highest quality. Common QC types include:

� Method Blank (Blk): A blank sample that undergoes sample processing identical to that carried out for the test samples. Method

blank results are used to assess contamination from the laboratory environment and reagents.

� Duplicate (Dup): An additional or second portion of a randomly selected sample in the analytical run carried through the entire

analytical process. Duplicates provide a measure of the analytical method's precision (reproducibility).

� Blank Spike (BS): A sample of known concentration which undergoes processing identical to that carried out for test samples, a l so

referred to as a laboratory control sample (LCS). Blank spikes provide a measure of the analytical method's accuracy.

� Matrix Spike (MS): A second aliquot of sample is fortified with with a known concentration of target analytes and carried through

the entire analytical process. Matrix spikes evaluate potential matrix effects that may affect the analyte recovery.

� Reference Material (SRM): A homogenous material of similar matrix to the samples, certified for the parameter(s) listed.

Reference Materials ensure that the analytical process is adequate to achieve acceptable recoveries of the parameter(s) tested.

Each QC type is analyzed at a 5-10% frequency, i.e. one blank/duplicate/spike for every 10-20 samples. For all types of QC, the

specified recovery (% Rec) and relative percent difference (RPD) limits are derived from long-term method performance averages

and/or prescribed by the reference method.

Analyte Result RL UnitsSpike

Level

Source

Result% REC

REC

Limit% RPD

RPD

LimitQualifier

Anions, Batch B0A1623

Blank (B0A1623-BLK1) Prepared: 2020-01-24, Analyzed: 2020-01-24

mg/LChloride < 0.10 0.10

mg/L< 0.010Nitrate (as N) 0.010

mg/L< 0.010Nitrite (as N) 0.010









LCS (B0A1623-BS1) Prepared: 2020-01-24, Analyzed: 2020-01-25

90-11099mg/LChloride 15.9 0.10 16.0

mg/L 90-110993.95Nitrate (as N) 0.010 4.00

mg/L 85-1151012.02Nitrite (as N) 0.010 2.00


90-11099mg/LChloride 15.9 0.10 16.0

mg/L 90-110993.97Nitrate (as N) 0.010 4.00

mg/L 85-1151002.00Nitrite (as N) 0.010 2.00


90-110100mg/LChloride 15.9 0.10 16.0

mg/L 90-110983.94Nitrate (as N) 0.010 4.00

mg/L 85-1151002.01Nitrite (as N) 0.010 2.00

General Parameters, Batch B0A1769


mg/LNitrogen, Total Kjeldahl < 0.050 0.050


85-11593mg/LNitrogen, Total Kjeldahl 0.933 0.050 1.00



REPORTED 2020-01-30 10:47

APPENDIX 2: QUALITY CONTROL RESULTS

PROJECT 2017-8011

WORK ORDER 0011502

Analyte Result RL UnitsSpike

Level

Source

Result% REC

REC

Limit% RPD

RPD

LimitQualifier

General Parameters, Batch B0A1769, Continued



mg/LAmmonia, Total (as N) < 0.020 0.020








90-115112mg/LAmmonia, Total (as N) 1.12 0.020 1.00









mg/LPhosphorus, Total (as P) < 0.0020 0.0020


85-115101mg/LPhosphorus, Total (as P) 0.101 0.0020 0.100


technical memorandum · 2020. 2. 6. · from four locations along the embankment (ebm1, ebm2, ebm4...

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