HomeMy WebLinkAboutWater Quality Report 2016.pdf
CITY OF MAPLE RIDGE DRINKING WATER QUALITY REPORT 2016 May 2017
City of Maple Ridge Drinking Water Quality Report 2016 1 Table of Contents List of Abbreviations ......................................................................................................
.............................2 Executive Summary ....................................................................................................................................3
1.0 Introduction .....................................................................................................................................4 2.0 Background ...............................
......................................................................................................5 2.1 Source Water...............................................................................
................................................5 2.2 Distribution System......................................................................................................................5
2.3 Facility Maintenance....................................................................................................................5 2.4 Re-Chlorination Stations............................
..................................................................................5 3.0 Regulated Drinking Water Quality Parameters ...................................................................
...........6 3.1 Water Quality Sampling and Monitoring.....................................................................................6 3.2 Bacteriological Monitoring and Results................
......................................................................6 3.2.1 Escherichia Coli.........................................................................................................
...........6 3.2.2 Total Coliform .......................................................................................................................7 3.2.3 Frequency of Monitoring
Samples ......................................................................................8 4.0 Unregulated Drinking Water Quality Parameters ....................................................
.......................9 4.1 Free Chlorine ...............................................................................................................................9 4.2 Turbidity
.................................................................................................................................... 10 4.3 Heterotrophic Plate Count ................................
........................................................................ 11 4.4 Disinfection Byproducts................................................................................................
............ 12 4.5 pH.............................................................................................................................................. 13 4.6 Metals ....................
................................................................................................................... 13 4.7 Temperature.................................................................
............................................................ 13 4.8 Vinyl Chloride.....................................................................................................................
....... 14 5.0 Response to Potential Contamination ......................................................................................... 14 6.0 Public Health Message from the Medical
Health Officer ........................................................... 14 7.0 Conclusion .........................................................................................................
........................... 14 Appendix A: Sampling Station Locations ................................................................................................. 15 Appendix B:
Residual Free Chlorine Figures ........................................................................................... 17 Appendix C: Disinfection By-Products and pH.............................
............................................................ 21 Appendix D: Metals and Vinyl Chloride .................................................................................................
... 24 Appendix E: Metals without Maximum Concentration Guidelines ......................................................... 27 Appendix F: Free Chlorine and Turbidity Charts.........................
............................................................. 29 Appendix G: Weekly Sample Lab Results ................................................................................................
40 Appendix H: Preventing Water-Borne Infections for People with Weakened Immune Systems .......... 68
City of Maple Ridge Drinking Water Quality Report 2016 2 List of Abbreviations L = litre mL = milliliter g = gram mg = milligram μg = microgram ppb = parts per billion °C = degree Celsius
E. coli = Escherichia coli NTU = Nephelometric Turbidity Units HPC = heterotrophic plate count CFU = colony-forming unit THM = triohalomethane HAA = haloacetic acid USEPA = United States
Environmental Protection Agency Cl2 = chlorine MF = membrane filtration EOCP = Environmental Operators Certification Program
City of Maple Ridge Drinking Water Quality Report 2016 3 Executive Summary The City of Maple Ridge (City) is a distributor of water that is supplied and treated by Metro Vancouver from
its Coquitlam Lake source. In 2016, the City supplied water to approximately 80,000 people. In accordance with the requirements of the BC Drinking Water Protection Regulation, the City
sends weekly drinking water samples from 20 locations to a laboratory for analysis. Test results are communicated to the City and the Fraser Health Authority every week and documented
in this annual report. In 2016, the City met all regulatory requirements for drinking water quality set out in the BC Drinking Water Protection Regulation: No samples tested positive
for E. coli For each 30-day period, over 90% of samples had 0 total coliform per 100mL, and no sample had more than 10 total coliform per 100mL In monitoring unregulated drinking
water quality parameters, the City follows the 2008 Water Quality Monitoring and Reporting Plan for Metro Vancouver and Member Municipalities and compares laboratory results to Health
Canada recommendations for drinking water quality. In 2016, City water did not exceed any maximum limits recommended by Health Canada with the exception of temperature.
City of Maple Ridge Drinking Water Quality Report 2016 4 1.0 Introduction The City operates a Municipal Water Utility under the provisions of the provincial Local Government Act, the
BC Drinking Water Protection Act, and the BC Drinking Water Protection Regulation. These obligate the City to meet several requirements, including: Operating the utility under permit
by the Provincial Ministry of Health Services Engaging in water quality monitoring The roles and responsibilities for the Province, Fraser Health Authority, and Metro Vancouver/City
of Maple Ridge (Water System Owners) are shown in Figure 1. Figure 1: Agency Responsibilities for Water Quality Ministry of Healthy Living and Sport Creates and “owns” Drinking Water
Protection Act and Regulation Health Authority Administration & Enforcement of Legislation/Regulations Water System Owners Provision of Safe Drinking Water + Notification of Water Quality
Problems
City of Maple Ridge Drinking Water Quality Report 2016 5 2.0 Background The City is supplied with water from the protected and undeveloped Metro Vancouver watersheds. Drinking water
is conveyed to Maple Ridge residents through large diameter Metro Vancouver transmission mains and approximately 400km of municipal water distribution pipes. 2.1 Source Water Metro
Vancouver supplies water to the City through a series of pipes linking Maple Ridge to the Coquitlam, Seymour and Capilano watersheds. While the Coquitlam watershed is the primary source
of water for Maple Ridge, Metro Vancouver has the ability to convey water from the Seymour watershed to Maple Ridge in the event of a service disruption at the Coquitlam source. Metro
Vancouver operates an ultra violet (UV) light water treatment facility at the Coquitlam watershed which disinfects source water prior to it entering the distribution system. 2.2 Distribution
System The City distributes water to businesses, institutions and over 80,000 residents. Water distribution infrastructure includes approximately 400km of water mains, over 19,000 service
connections, 8 pump stations, and 8 reservoir sites. The Municipality also operates 6 re-chlorination stations to boost residual chlorine levels in the distribution system. The distribution
system is managed by a team of professionals within the Public Works and Development Services Division, under the leadership of the General Manager of Public Works and Development Services.
The operators of the system are EOCP Level 4 compliant. The system is also regulated by Maple Ridge’s Water Service Bylaw 6002-2001. 2.3 Facility Maintenance Water quality is influenced
by water system maintenance and improvement strategies that are implemented by the City’s Operations and Engineering Departments. Water main flushing is a method of cleaning water mains.
Flushing involves manipulating valves and discharging water through fire hydrants or blow off points. The discharged water carries sediment and other solids with it, thus cleaning the
mains. The City cleaned 89km of the distribution system using this method in 2016. In support of summer water conservation efforts, the City’s annual flushing program is scheduled to
take place only between October and May. The City currently cleans its reservoirs on a 7 year cycle. 2.4 Re-Chlorination Stations Chlorine levels are continually monitored at 6 re-chlorination
stations throughout the distribution system. Additional chlorine is automatically injected into the drinking water at these locations if detected chlorine levels are low. The re-chlorination
stations are inspected daily and adjusted as necessary.
City of Maple Ridge Drinking Water Quality Report 2016 6 3.0 Regulated Drinking Water Quality Parameters Metro Vancouver and the City are responsible for monitoring water quality in
different parts of the regional drinking water system. Metro Vancouver is responsible for monitoring the quality of water leaving the treatment plants and within their transmission
mains. The City is responsible for monitoring water quality in distribution mains throughout Maple Ridge. The quality of water distributed within the City is monitored in accordance
with requirements set out in provincial regulations. This section describes the monitoring program and water quality results for 2016. 3.1 Water Quality Sampling and Monitoring Water
quality is monitored for regulatory compliance on a weekly basis at the City’s 20 sampling locations. Sampling site locations and codes are illustrated on a map in Appendix A. Samples
are taken weekly by City Operations Department staff and sent to the Metro Vancouver laboratory for analysis. Metro Vancouver staff members analyze the samples and communicate the results
to City and Fraser Health staff for review. Responses to undesirable results would vary from re-sampling to flushing water mains to possibly issuing a boil water advisory, depending
on confirmation and the significance of the parameter of concern. The monitoring program provides a representative picture of drinking water quality within municipal water mains. However,
it does not provide a definitive picture of drinking water quality within buildings where water quality can change significantly due to pipe material, standing time, temperature, and
other factors. It can be assumed that samples taken within buildings will be of different quality than those taken from municipal mains. The City is not responsible for water quality
on private property. 3.2 Bacteriological Monitoring and Results The BC Drinking Water Protection Regulation requires the City to carry out routine sampling and testing for Escherichia
coli (E. coli) and total coliform bacteria. These are considered “indicator organisms” because their presence or absence provides an indication of microbial water quality. Figure 2
and Figure 3 show Metro Vancouver Laboratory technicians processing a water sample and testing it for the presence of coliform bacteria. 3.2.1 Escherichia Coli E. coli is a type of
coliform bacteria present exclusively in the feces of humans and other animals. The existence of E. coli in a water sample indicates recent fecal contamination and the possible presence
of intestinal disease-causing bacteria, viruses, and protozoa. The BC Drinking Water Protection Regulation standard for E. coli is none detectable per 100 ml. In 2016, no samples tested
positive for E. coli.
City of Maple Ridge Drinking Water Quality Report 2016 7 Figure 2: Metro Vancouver Laboratory technician processing water sample in preparation for coliform bacteria check Figure 3:
Metro Vancouver Laboratory technician checking water sample for coliform bacteria 3.2.2 Total Coliform The total coliform group of bacteria is composed of various types with similar
characteristics. The natural niches for members of this group range from being fecal-specific, such as E. coli, to being widely distributed in water, soil, and vegetation. The BC Drinking
Water Protection Regulation standards for total coliform are described in Table 1. Table 1: BC Drinking Water Protection Regulation Standards for Total Coliform Occurrence Standard
1 Sample in a 30 day period No detectable total coliform per 100mL More than 1 sample in a 30 day period At least 90% of samples have 0 total coliform per 100mL and no sample has more
than 10 total coliform per 100mL In 2016 there were no samples with detectable total coliform per 100mL. Table 2 lists the annual number of samples found to contain total coliform between
2006 and 2016.
City of Maple Ridge Drinking Water Quality Report 2016 8 Table 2: Total Coliform Results by Year Year Number of Samples with Total Coliform 2016 0 2015 3 2014 0 2013 0 2012 2 2011 1
2010 3 2009 1 2008 0 2007 5 2006 0 3.2.3 Frequency of Monitoring Samples The monitoring frequency for the detection of E. coli and total coliforms is stipulated by the BC Drinking Water
Protection Regulation. Current requirements are identified in Table 3. With a total of 20 weekly sampling sites at various points in the City’s water distribution system, the average
number of monthly samples (87) exceeds the stipulated value of 80 (based on a directly serviced population of approximately 80,000). As the City’s population grows, additional sampling
sites will be added. Table 3: Monitoring Frequency for the detection of E. coli and total coliforms Population Served Target No. of Samples per Month Less than 5,000 4 5,000 to 90,000
1 per 1,000 of population More than 90,000 90 plus 1 per 10,000 of population in excess of 90,000
City of Maple Ridge Drinking Water Quality Report 2016 9 4.0 Unregulated Drinking Water Quality Parameters This section reports on water quality parameters that are not regulated through
legislation. 4.1 Free Chlorine In the Guidelines for Canadian Drinking Water Quality, Health Canada states that for health considerations, a “guideline value [maximum acceptable concentration
level for chlorine] is not necessary due to low toxicity at concentrations found in drinking water.” With respect to a minimum chlorine concentration, no regulations exist for British
Columbia. However, Health Canada reports the following: “the U.S. Environmental Protection Agency (EPA) Surface Water Treatment Rule requires a minimum disinfectant residual of 0.2
mg/L for water entering the distribution system and that a detectable level be maintained throughout the distribution system. The World Health Organization (WHO) has suggested that,
for areas with little risk of cholera or related outbreaks, a free chlorine residual range of 0.2-0.5 mg/L be maintained at all points in the supply. In general, a free chlorine residual
of 0.2 mg/L is considered a minimum level for the control of bacterial regrowth in the distribution system.”1 Health Canada also reports that “free chlorine concentrations in most Canadian
drinking water distribution systems range from 0.04 to 2.0 mg/L.”2 Residual chlorine concentrations are affected by various parameters such as water age, turbidity levels, pipe material,
and temperature. Table 5 and the maps in Appendix B show that: In 2016, the average free chlorine residual at all stations in Maple Ridge was greater than 0.2 mg/L with the exception
of station 441. Stations 441 and 449 had the greatest number of samples with chlorine residuals less than 0.2 mg/L. Detailed free chlorine residual data charted in Appendix F and
tabulated in Appendix G indicates that 13 of the 1,040 samples had no chlorine residual. All 13 samples in 2016 with no chlorine were taken at sampling stations in low-demand locations,
stations 436, 439 and 441. Of the samples with undetectable chlorine levels, no samples had detectable total coliforms or elevated HPC results (see Table 4). 1 Guidelines for Canadian
Drinking Water Quality -Guideline Technical Document -Chlorine -(Health Canada, 2009) 2 Guidelines for Canadian Drinking Water Quality -Guideline Technical Document -Chlorine -(Health
Canada, 2009)
City of Maple Ridge Drinking Water Quality Report 2016 10 Table 4: Water Quality Parameters for Samples with Undetectable Chlorine Sample name Sample Location Sampled Date Cl2 Free mg/L
Ecoli MF/100mL HPC CFU/mL Temp. °C Total Coliform MF/100mL Turb. NTU MPR-436 125 Ave. West of Ansell St. 8-Nov-16 0 <1 4 11 <1 0.29 MPR-436 125 Ave. West of Ansell St. 15-Nov-16 0 <1
4 12 <1 0.28 MPR-436 125 Ave. West of Ansell St. 22-Nov-16 0 <1 2 11 <1 0.26 MPR-439 130 Ave. @251A St. (W. of 256 St.) 8-Nov-16 0 <1 <2 12 <1 0.35 MPR-441 132 Ave. @Cedar Way 26-Apr-16
0 <1 2 12 <1 0.25 MPR-441 132 Ave. @Cedar Way 14-Jun-16 0 <1 <2 16 <1 0.28 MPR-441 132 Ave. @Cedar Way 21-Jun-16 0 <1 <2 15 <1 0.27 MPR-441 132 Ave. @Cedar Way 19-Jul-16 0 <1 <2 18
<1 0.24 MPR-441 132 Ave. @Cedar Way 6-Sep-16 0 <1 2 18 <1 0.22 MPR-441 132 Ave. @Cedar Way 1-Nov-16 0 <1 12 13 <1 0.35 MPR-441 132 Ave. @Cedar Way 8-Nov-16 0 <1 2 12 <1 0.35 MPR-441
132 Ave. @Cedar Way 22-Nov-16 0 <1 10 12 <1 0.33 MPR-441 132 Ave. @Cedar Way 6-Dec-16 0 <1 36 9 <1 0.33 4.2 Turbidity Turbidity, measured in Nephelometric Turbidity Units (NTU), is
a measure of water clarity. There are no provincial guidelines for turbidity within a distribution system. Average turbidity values at all sample stations are displayed below in Table
5. Detailed turbidity data for 2016 is charted in Appendix F and tabulated in Appendix G. Variations in turbidity within a distribution system are normal. Higher levels may be associated
with turbidity in source water or local system events such as high flow rates from unidirectional flushing, fire-fighting, or water main breaks. In the event that a high level of turbidity
is detected, the City will determine whether this is expected due to system operations. If the event is unexpected, the City will confirm turbidity level and flush the mains should
high turbidity levels persist.
City of Maple Ridge Drinking Water Quality Report 2016 11 Table 5: 2015 Chlorine Residual and Turbidity Results by Site Station Total Samples Taken Average Free Chlorine in mg/L Average
Turbidity in NTU Samples Taken with Free Chlorine Greater Than or Equal to 0.2 mg/L (#) Samples Taken with Free Chlorine Less Than 0.2 mg/L (#) Samples Taken with Free Chlorine Greater
Than or Equal to 0.2 mg/L (%) Samples Taken with Free Chlorine Less Than 0.2 mg/L (%) MPR-400 52 0.32 0.26 45 7 87% 13% MPR-431 52 0.86 0.33 52 0 100% 0% MPR-432 52 0.57 0.33 51 1 98%
2% MPR-433 52 0.76 0.32 52 0 100% 0% MPR-434 52 0.69 0.31 52 0 100% 0% MPR-435 52 0.38 0.29 48 4 92% 8% MPR-436 52 0.74 0.28 48 4 92% 8% MPR-437 52 0.90 0.61 51 1 98% 2% MPR-438 52
0.81 0.31 51 1 98% 2% MPR-439 52 0.45 0.30 43 9 83% 17% MPR-440 52 0.88 0.36 52 0 100% 0% MPR-441 52 0.12 0.29 9 43 17% 83% MPR-442 52 0.62 0.34 52 0 100% 0% MPR-443 52 0.76 0.32 52
0 100% 0% MPR-444 52 0.43 0.30 50 2 96% 4% MPR-445 52 0.55 0.28 45 7 87% 13% MPR-446 52 0.59 0.38 45 7 87% 13% MPR-447 52 0.71 0.33 51 1 98% 2% MPR-448 52 0.59 0.32 52 0 100% 0% MPR-449
52 0.20 0.26 26 26 50% 50% 4.3 Heterotrophic Plate Count Health Canada does not suggest a maximum acceptable concentration for heterotrophs. Instead, it recommends that increases in
heterotrophic plate count (HPC) concentrations above baselines levels be considered undesirable. Table 6 shows the annual number of samples with HPCs over 500 CFU/mL between 2006 and
2016. In response to HPC counts at or above this level, the City will re-test and flush water mains. HPC data for each sample taken in 2016 is provided in Appendix G.
City of Maple Ridge Drinking Water Quality Report 2016 12 Table 6: HPC Results by Year Year Number of Samples with HPC > 500 CFU/mL 2016 0 2015 5 2014 0 2013 0 2012 0 2011 1 2010 1 2009
1 2008 4 2007 1 2006 7 4.4 Disinfection Byproducts Disinfection byproducts such as trihalomethanes (THMs) and haloacetic acids (HAAs) can form when chlorine used to disinfect drinking
water reacts with naturally occurring organic matter. Health risks may be associated with long-term exposure to high levels of THMs and HAAs. Trihalomethanes Health Canada considers
THMs to be possibly carcinogenic to humans. Health Canada also reports that “High Levels of THMs may also have an effect on pregnancy. A California study found that pregnant women who
drank large amounts of tap water with high THMs had an increased risk of miscarriage. These studies do not prove that there is a link between THMs and cancer or miscarriage. However,
they do show the need for further research in this area to confirm potential health effects.”3 Health Canada recommends that the running average (last 4 quarters) for Total THMs remain
below 100 ppb. Quarterly samples were taken at four sites for THM analysis. The running quarterly average THM concentration in the samples remained below 100 ppb at all locations. Detailed
THM test results are provided in Appendix C. Haloacetic acids Health Canada considers HAAs to be possibly carcinogenic to humans. Health Canada recommends that the running average (last
4 quarters) total HAA concentration be below 80 ppb. Quarterly samples were taken at four sites for HAA analysis. The running quarterly average HAA concentration remained below 80 ppb
for all locations. Detailed HAA test results are provided in Appendix C. Following elevated HAA levels at station MPR-438 in 2015, the City increased the sampling and testing frequency
at this location. The 10 additional samples taken at MPR-438 in 2016 had HAA levels ranging from 30 to 78 ppb. The results for the additional tests are displayed in Appendix C. 3 Health
Canada Website http://www.hc-sc.gc.ca/hl-vs/iyh-vsv/environ/chlor-eng.php accessed January 2015
City of Maple Ridge Drinking Water Quality Report 2016 13 4.5 pH pH is a measure of the acid-base equilibrium of water. pH is of concern in a water distribution system because at low
values water becomes corrosive while at high values chlorine disinfection is less efficient. Health Canada indicates that an acceptable pH range for drinking water is 6.5 – 8.5 pH units.
8 distribution system samples were tested for pH. Test results ranged of 7.1 to 7.5 pH units (See Appendix C). 4.6 Metals The City tested samples at 3 monitoring sites for concentrations
of various metals. Test results are shown in Appendix D, along with maximum concentration limits suggested by Health Canada and the U.S. Environmental Protection Agency (USEPA). USEPA
values are referenced only where Health Canada does not recommend a limit. As shown in Appendix D, all measured metal concentrations were below the limits recommended by Health Canada
and the USEPA. Neither Health Canada nor the USEPA suggest drinking water quality guidelines for calcium, cobalt, magnesium, molybdenum, nickel or potassium. Additional information
related to concentrations of these metals is provided in Appendix E. 4.7 Temperature Health Canada sets an aesthetic objective of 15°C for drinking water. Water temperature exceeding
this objective can result in consumer complaints and the growth of nuisance organisms that could lead to unpleasant tastes and odors. Figure 4 shows average monthly drinking water temperatures
in Maple Ridge. In July, August, and September the average monthly temperatures were 15.8, 17.8, 16.8 respectively exceeding Health Canada’s objective. Detailed temperature information
is provided in Appendix G. Figure 4: Average Monthly Drinking Water Temperature Chart 02468 10 12 14 16 18 20 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Temperature (Degree Cels
ius) Average Monthly Drinking Water Temperature
City of Maple Ridge Drinking Water Quality Report 2016 14 4.8 Vinyl Chloride The concentration of vinyl chloride was tested in 6 samples during 2016. As indicated in Appendix D, all
results were non-detectable (less than 1 μg/L), less than the Health Canada Guideline of 2 μg/L. 5.0 Response to Potential Contamination In the event that contaminants are detected
in the water distribution system, a series of protocols will be carried out to communicate the event to City and Fraser Health Authority staff. The City and Fraser Health will then
work together to confirm the incident, determine the nature of the risk to public health, and issue public notices as appropriate. Depending on the level of risk a water quality advisory,
boil water notice, or do-not-use water notice could be issued. Public notices would be communicated through various media. The City’s contamination response plan is embedded in emergency
planning documents. 6.0 Public Health Message from the Medical Health Officer Fraser Health’s Medical Health Officer has requested that a fact sheet entitled “Preventing Water-Borne
Infections for People with weakened Immune Systems” be included in this report. The fact sheet is presented in Appendix H. Additionally, the Medical Health Officer has requested the
following message be included in this report: Anytime the water in a particular faucet has not been used for six hours or longer, “flush” your coldwater pipes by running the water until
you notice a change in temperature. (This could take as little as five to thirty seconds if there has been recent heavy water use such as showering or toilet flushing. Otherwise, it
could take two minutes or longer.) The more time water has been sitting in your home’s pipes, the more lead it may contain. Use only water from the cold-tap for drinking, cooking, and
especially making baby formula. Hot water is likely to contain higher levels of lead. The two actions recommended above are very important to the health of your family. They will probably
be effective in reducing lead levels because most of the lead in household water usually comes from the plumbing in your house, not the local water supply. 7.0 Conclusion The City monitored
drinking water quality in 2016 in accordance with provincial regulations. Over 1,000 drinking water samples were obtained from the municipal water distribution system at 20 locations
throughout the City. Metro Vancouver Laboratory testing indicated that all samples met the BC Drinking Water Protection Regulation Standards.
City of Maple Ridge Drinking Water Quality Report 2016 15 Appendix A: Sampling Station Locations
City of Maple Ridge Drinking Water Quality Report 2016 16
City of Maple Ridge Drinking Water Quality Report 2016 17 Appendix B: Residual Free Chlorine Figures
City of Maple Ridge Drinking Water Quality Report 2016 18
City of Maple Ridge Drinking Water Quality Report 2016 19
City of Maple Ridge Drinking Water Quality Report 2016 20
City of Maple Ridge Drinking Water Quality Report 2016 21 Appendix C: Disinfection By-Products and pH
City of Maple Ridge Drinking Water Quality Report 2016 22 Sample Site Sample Location Date Sampled THM (ppb) HAA (ppb) pH Units Bromodichloromet hane Bromoform Chlorodibromomethane Chloroform
Total Trihalomethanes Running Average (Last 4 Quarte rs) Dibromoacetic Acid Dichloroacetic Acid Monobromoacetic Acid Monochloroacetic Acid Trichloroacetic Acid Total Haloacetic Acid
Running Average (Last 4 Quarte rs) Maximum Acceptable Concentration (Health Canada Guidelines for Canadian Drinking Water Quality) 16 100 80 6.5-8.5 MPR-434 102 Ave. East of 241A St.
19/05/2015 <1 <1 <1 43 43 <0.5 18 <1 8 25.2 52 MPR-434 102 Ave. East of 241A St. 18/08/2015 1 <1 <1 37 38 <0.5 20 <1 9 31.5 62 MPR-434 102 Ave. East of 241A St. 24/11/2015 <1 <1 <1
28 30 <0.5 17 <1 9 22.9 49 MPR-434 102 Ave. East of 241A St. 01/03/2016 <1 <1 <1 29 30 36 <0.5 17 <1 9 22.9 50 53 MPR-434 102 Ave. East of 241A St. 31/05/2016 <1 <1 <1 35 35 34 <0.5
12 <1 8 12.1 33 48 MPR-434 102 Ave. East of 241A St. 30/08/2016 1 <1 <1 27 30 32 <0.5 16 <1 9 23 48 45 MPR-434 102 Ave. East of 241A St. 18/10/2016 <1 <1 <1 42 44 35 <0.5 20 <1 10 48
79 52 MPR-435 240 St. South of Abernethy Way 19/05/2015 <1 <1 <1 44 44 <0.5 16 <1 4 26.2 48 MPR-435 240 St. South of Abernethy Way 18/08/2015 1 <1 <1 44 45 <0.5 12 <1 6 37 57 MPR-435
240 St. South of Abernethy Way 24/11/2015 <1 <1 <1 34 36 <0.5 18 <1 7 27 53 MPR-435 240 St. South of Abernethy Way 01/03/2016 <1 <1 <1 29 30 39 <0.5 12 <1 7 18 38 49 7.1 MPR-435 240
St. South of Abernethy Way 31/05/2016 <1 <1 <1 38 39 38 <0.5 9 <1 7 14.4 31 45 7.1 MPR-435 240 St. South of Abernethy Way 30/08/2016 2 <1 <1 33 36 35 <0.5 12 <1 7 26.2 46 42 7.4 MPR-435
240 St. South of Abernethy Way 18/10/2016 1 <1 <1 41 43 37 <0.5 12 <1 6 46.9 66 45 7.3 MPR-438 125 Ave. West off 256 St. 19/05/2015 <1 <1 <1 55 56 <0.5 29 <1 9 47.5 86 MPR-438 125 Ave.
West off 256 St. 18/08/2015 <1 <1 <1 37 38 <0.5 27 <1 8 29.2 65 MPR-438 125 Ave. West off 256 St. 24/11/2015 <1 <1 <1 52 54 <0.5 29 <1 12 49.8 91 MPR-438 125 Ave. West off 256 St. 01/03/2016
<1 <1 <1 41 42 47 <0.5 19 <1 11 27.9 58 75 7.2 MPR-438 125 Ave. West off 256 St. 31/05/2016 <1 <1 <1 43 44 44 <0.5 17 <1 10 21.8 50 66 7.2 MPR-438 125 Ave. West off 256 St. 30/08/2016
1 <1 <1 35 38 44 <0.5 21 <1 11 26.3 59 64 7.5 MPR-438 125 Ave. West off 256 St. 18/10/2016 1 <1 <1 48 51 44 <0.5 23 <1 11 63.6 99 66 7.4 MPR-440 232 St. @117 Ave. 19/05/2015 <1 <1 <1
44 44 <0.5 19 <1 9 22.1 50 MPR-440 232 St. @117 Ave. 18/08/2015 <1 <1 <1 27 28 <0.5 22 <1 9 19.5 51 MPR-440 232 St. @117 Ave. 24/11/2015 <1 <1 <1 28 30 <0.5 20 <1 10 17.9 48 MPR-440
232 St. @117 Ave. 01/03/2016 <1 <1 <1 29 30 33 <0.5 13 <1 9 12.9 35 46 MPR-440 232 St. @117 Ave. 31/05/2016 <1 <1 <1 32 32 30 <0.5 12 <1 8 11.3 32 41 MPR-440 232 St. @117 Ave. 30/08/2016
1 <1 <1 25 28 30 <0.5 16 <1 8 19.2 44 40 MPR-440 232 St. @117 Ave. 18/10/2016 <1 <1 <1 38 39 32 <0.5 20 <1 10 34.4 65 44
City of Maple Ridge Drinking Water Quality Report 2016 23 Additional HAA Samples at Station MPR-438 Sample Site Sample Location Date Sampled THM (ppb) HAA (ppb) pH Units Bromodichloromethane
Bromoform Chlorodibromomethane Chloroform Total Trihalomethanes Running Average (Last 4 Quarte rs) Dibromoacetic Acid Dichloroacetic Acid Monobromoacetic Acid Monochloroacetic Acid
Trichloroacetic Acid Total Haloacetic Acid Running Average (Last 4 Quarte rs) Maximum Acceptable Concentration (Health Canada Guidelines for Canadian Drinking Water Quality) 16 100
80 6.5-8.5 MPR-438 125 Ave. West off 256 St. 17/05/2016 <0.1 23 <0.2 <1.7 27 51 MPR-438 125 Ave. West off 256 St. 24/05/2016 <0.1 18 <0.2 <1.7 20 38 MPR-438 125 Ave. West off 256 St.
31/05/2016 <0.1 17 <0.2 <1.7 15 32 MPR-438 125 Ave. West off 256 St. 07/06/2016 <0.1 24 <0.2 <1.7 31 55 MPR-438 125 Ave. West off 256 St. 12/07/2016 <0.1 33 <0.2 <1.7 36 69 MPR-438
125 Ave. West off 256 St. 25/07/2016 <0.1 34 <0.2 <1.7 29 62 MPR-438 125 Ave. West off 256 St. 09/08/2016 <0.1 36 <0.2 <1.7 42 78 MPR-438 125 Ave. West off 256 St. 23/08/2016 <0.1 28
<0.2 <1.7 28 55 MPR-438 125 Ave. West off 256 St. 06/09/2016 <0.1 21 <0.2 <1.7 9.5 30 MPR-438 125 Ave. West off 256 St. 18/10/2016 <0.1 22 <0.2 <1.7 32 54
City of Maple Ridge Drinking Water Quality Report 2016 24 Appendix D: Metals and Vinyl Chloride
City of Maple Ridge Drinking Water Quality Report 2016 25 Metal Concentration Sample Name Sample Location Sampled Date Aluminium Total (µg/L) Antimony Total (µg/L) Arsenic Total (µg/L)
Barium Total (µg/L) Boron Total (µg/L) Cadmium Total (µg/L) Calcium Total (µg/L) Chromium Total (µg/L) Cobalt Total (µg/L) Copper Total (µg/L) Iron Total (µg/L) Lead Total (µg/L) Magnesium
Total (µg/L) Manganese Total (µg/L) Mercury Total (µg/L) Molybdenum Total (µg/L) Nickel Total (µg/L) Potassium Total (µg/L) Selenium Total (µg/L) Silver Total (µg/L) Sodium Total (µg/L)
Zinc Total (µg/L) Maximum Acceptable Concentration (Guidelines for Canadian Drinking Water Quality) 200 6 10 1000 5000 5 none 50 none 1000 300 10 none 50 1 none none none 50 none 200,000
5000 Maximum Acceptable Concentration (USEPA National Secondary Drinking Water Regulations) no ne no ne no ne no ne no ne no ne 100 Reason Guideline Established -Health (H) or Aesthetic
(A) A H H H H H H A A H A H H A A A MPR-431 Dewdney Trunk Rd. @201B St. 17-May-16 89 <0.5 <0.5 2.3 <10 <0.2 925 0.28 <0.5 22.4 49 <0.5 92 4.1 <0.05 <0.5 <0.5 108 <0.5 <0.5 5510 <3.0
MPR-435 240 St. South of Abernethy Way 17-May-16 80 <0.5 <0.5 2.2 <10 <0.2 1160 0.33 <0.5 4.3 44 <0.5 94 1.9 <0.05 <0.5 <0.5 111 <0.5 <0.5 6480 <3.0 MPR-446 128th Ave and Willow Place
17-May-16 90 <0.5 <0.5 3.4 <10 <0.2 1400 0.31 <0.5 3.7 68 <0.5 92 3.0 <0.05 <0.5 <0.5 120 <0.5 <0.5 11300 3.7 MPR-431 Dewdney Trunk Rd. @201B St. 25-Oct-16 84 <0.5 <0.5 2.5 <10 <0.2
1070 0.26 <0.5 7.9 48 <0.5 99 1.8 <0.05 <0.5 <0.5 129 <0.5 <0.5 6380 <3.0 MPR-435 240 St. South of Abernethy Way 25-Oct-16 84 <0.5 <0.5 3.6 <10 <0.2 1180 0.28 <0.5 10.6 51 <0.5 102
1.3 <0.05 <0.5 <0.5 129 <0.5 <0.5 6550 <3.0 MPR-446 128th Ave and Willow Place 25-Oct-16 82 <0.5 <0.5 3.8 <10 <0.2 1700 0.25 <0.5 1.9 74 <0.5 99 4.7 <0.05 <0.5 <0.5 137 <0.5 <0.5 11700
<3.0
City of Maple Ridge Drinking Water Quality Report 2016 26 Vinyl Chloride Concentration Sample Site Number Sample Reported Name Sampled date Vinyl Chloride (mg/L) MPR-431 Dewdney Trunk
Rd. @201B St. 14-Jun-16 <0.0010 MPR-431 Dewdney Trunk Rd. @201B St. 6-Dec-16 <0.0010 MPR-435 240 St. South of Abernethy Way 14-Jun-16 <0.0010 MPR-435 240 St. South of Abernethy Way
6-Dec-16 <0.0010 MPR-446 128th Ave and Willow Place 14-Jun-16 <0.0010 MPR-446 128th Ave and Willow Place 6-Dec-16 <0.0010
City of Maple Ridge Drinking Water Quality Report 2016 27 Appendix E: Metals without Maximum Concentration Guidelines Neither Health Canada nor the USEPA suggest maximum concentration
guidelines for calcium, cobalt, magnesium, molybdenum, nickel, or potassium in drinking water. Additional information related to these metals is provided below. Calcium Health Canada
reports “there is no evidence of adverse health effects specifically attributable to calcium in drinking water. Insufficient data are available to set a specific value for an aesthetic
objective for calcium in drinking water. A guideline for calcium has therefore not been specified – Measurements of water samples collected from 71 municipalities across Canada showed
that the mean calcium concentrations were 21,400 μg/L for distributed water”.4 Cobalt Neither Health Canada nor the USEPA publish a drinking water quality standard for cobalt. However,
as a point of reference one might consider that the BC Ministry of Environment recommends that the maximum concentration of total cobalt should not exceed 110 μg/L to “protect aquatic
life in the freshwater environment from acute effects of cobalt”.5 Magnesium Health Canada reports “there is no evidence of adverse health effects specifically attributable to magnesium
in drinking water. A guideline for magnesium has therefore not been specified. Two national surveys of drinking water supplies, encompassing 115 municipalities across Canada, were conducted
in 1976 and 1977; magnesium concentrations in distributed water ranged from 200 to 59,500 μg/L”.6 Molybdenum Neither Health Canada nor the USEPA publish a drinking water quality standard
for Molybdenum. However, as a point of reference one might consider that the BC Ministry of Environment recommends a maximum of 50 μg/L for various water uses such as irrigation and
drinking water for livestock.7 Nickel Neither Health Canada nor the USEPA publish a drinking water quality standard for nickel. However, as a point of reference one might consider that
the BC Ministry of Environment recommends a maximum concentration of 8.3 μg/L nickel for marine aquatic life.8 4 Guidelines For Canadian Drinking Water Quality – Supporting Documents
– Calcium, Health Canada (1978, updated 1987) 5 Ambient Water Quality Guidelines for Cobalt Overview Report, BC Ministry of Environment (2004) 6 Guidelines For Canadian Drinking Water
Quality – Supporting Documents-Magnesium, Health Canada (1978, updated 1987) 7 Water Quality Criteria for Molybdenum Overview Report, BC Ministry of Environment (1986) 8 A compendium
of Working Water Quality Guidelines for British Columbia, BC Ministry of Environment (2008)
City of Maple Ridge Drinking Water Quality Report 2016 28 Potassium Neither Health Canada nor the USEPA publish a drinking water quality standard for potassium. However, as a point of
reference one might consider that the BC Ministry of Environment recommends a maximum concentration of 373, 000 μg/L potassium for freshwater aquatic live.9 9 A Compendium of Working
Water Quality Guidelines for British Columbia, BC Ministry of Environment (2008)
City of Maple Ridge Drinking Water Quality Report 2016 29 Appendix F: Free Chlorine and Turbidity Charts
City of Maple Ridge Drinking Water Quality Report 2016 30 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-400 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec m g/L F r ee Chl orine /N ephelometric Tur bidi ty Un its 2016 Free Chlorine & Turbidity Data for Sample Site MPR-431 Free Chlorine Turbidity Target Chlorine Concentration
Highest chlorine was 1.54 mg/L on October 11, 2016.
City of Maple Ridge Drinking Water Quality Report 2016 31 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-432 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec m g/L F r ee Chl orine /N ephelometric Tur bidi ty Un its 2016 Free Chlorine & Turbidity Data for Sample Site MPR-433 Free Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 32 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-434 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-435 Free Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 33 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-436 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2015 Free Chlorine & Turbidity Data for Sample Site MPR-437 Free Chlorine Turbidity Target Chlorine Concentration
Highest turbidity was 16 NTU on May 10, 2016.
City of Maple Ridge Drinking Water Quality Report 2016 34 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-438 Free Chlorine Turbidity Target Chlorine Concentration Highest chlorine was 1.5 mg/L on March 8, 2016. 0 0.2 0.4 0.6
0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-439 Free
Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 35 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-440 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-441 Free Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 36 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-442 Free Chlorine Turbidity Target Chlorine Concentration Highest turbidity was 1.7 NTU on November 15, 2016. 0 0.2 0.4
0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-443 Free
Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 37 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-444 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-445 Free Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 38 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-446 Free Chlorine Turbidity Target Chlorine Concentration Highest chlorine was 1.7 mg/L on February 2, 2016. 0 0.2 0.4
0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-447 Free
Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 39 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec m g/L F re e Ch lorine /N ephelometric Tu rb idity
Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-448 Free Chlorine Turbidity Target Chlorine Concentration 0 0.2 0.4 0.6 0.81 1.2 1.4 Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec mg/L Fre e Ch lorine /Nephelometric T u rb idity Units 2016 Free Chlorine & Turbidity Data for Sample Site MPR-449 Free Chlorine Turbidity Target Chlorine Concentration
City of Maple Ridge Drinking Water Quality Report 2016 40 Appendix G: Weekly Sample Lab Results
City of Maple Ridge Drinking Water Quality Report 2016 41 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-400 Powell Ave. West of 203rd Street 5-Jan-16 0.05 <1 360 10 <1 0.21 MPR-400 Powell Ave. West of 203rd Street 12-Jan-16 0.03 <1 220 9 <1 0.22 MPR-400 Powell Ave. West of 203rd
Street 19-Jan-16 0.08 <1 92 9 <1 0.24 MPR-400 Powell Ave. West of 203rd Street 26-Jan-16 0.29 <1 <2 9 <1 0.27 MPR-400 Powell Ave. West of 203rd Street 2-Feb-16 0.43 <1 <2 9 <1 0.33
MPR-400 Powell Ave. West of 203rd Street 9-Feb-16 0.54 <1 <2 9 <1 0.37 MPR-400 Powell Ave. West of 203rd Street 16-Feb-16 0.32 <1 <2 9 <1 0.33 MPR-400 Powell Ave. West of 203rd Street
23-Feb-16 0.3 <1 4 9 <1 0.32 MPR-400 Powell Ave. West of 203rd Street 1-Mar-16 0.24 <1 110 9 <1 0.26 MPR-400 Powell Ave. West of 203rd Street 8-Mar-16 0.3 <1 <2 9 <1 0.28 MPR-400 Powell
Ave. West of 203rd Street 15-Mar-16 0.25 <1 <2 9 <1 0.25 MPR-400 Powell Ave. West of 203rd Street 22-Mar-16 0.35 <1 <2 9 <1 0.26 MPR-400 Powell Ave. West of 203rd Street 29-Mar-16 0.44
<1 <2 9 <1 0.24 MPR-400 Powell Ave. West of 203rd Street 5-Apr-16 0.39 <1 <2 10 <1 0.31 MPR-400 Powell Ave. West of 203rd Street 12-Apr-16 0.37 <1 <2 10 <1 0.27 MPR-400 Powell Ave.
West of 203rd Street 19-Apr-16 0.28 <1 <2 10 <1 0.22 MPR-400 Powell Ave. West of 203rd Street 26-Apr-16 0.26 <1 <2 11 <1 0.26 MPR-400 Powell Ave. West of 203rd Street 4-May-16 0.26
<1 <2 11 <1 0.25 MPR-400 Powell Ave. West of 203rd Street 10-May-16 0.35 <1 2 12 <1 0.35 MPR-400 Powell Ave. West of 203rd Street 17-May-16 0.26 <1 4 13 <1 0.22 MPR-400 Powell Ave.
West of 203rd Street 24-May-16 0.24 <1 <2 13 <1 0.19 MPR-400 Powell Ave. West of 203rd Street 31-May-16 0.23 <1 <2 13 <1 0.34 MPR-400 Powell Ave. West of 203rd Street 7-Jun-16 0.23
<1 2 14 <1 0.28 MPR-400 Powell Ave. West of 203rd Street 14-Jun-16 0.29 <1 <2 14 <1 0.22 MPR-400 Powell Ave. West of 203rd Street 21-Jun-16 0.19 <1 4 14 <1 0.22 MPR-400 Powell Ave.
West of 203rd Street 28-Jun-16 0.41 <1 <2 14 <1 0.23 MPR-400 Powell Ave. West of 203rd Street 5-Jul-16 0.29 <1 <2 15 <1 0.26 MPR-400 Powell Ave. West of 203rd Street 12-Jul-16 0.29
<1 2 15 <1 0.18 MPR-400 Powell Ave. West of 203rd Street 19-Jul-16 0.28 <1 <2 15 <1 0.2 MPR-400 Powell Ave. West of 203rd Street 26-Jul-16 0.49 <1 2 17 <1 0.19 MPR-400 Powell Ave. West
of 203rd Street 2-Aug-16 0.33 <1 4 17 <1 0.19 MPR-400 Powell Ave. West of 203rd Street 9-Aug-16 0.4 <1 10 18 <1 0.23 MPR-400 Powell Ave. West of 203rd Street 16-Aug-16 0.88 <1 Cont.
17 <1 0.3 MPR-400 Powell Ave. West of 203rd Street 23-Aug-16 0.32 <1 12 18 <1 0.25 MPR-400 Powell Ave. West of 203rd Street 30-Aug-16 0.36 <1 14 17 <1 0.35 MPR-400 Powell Ave. West
of 203rd Street 6-Sep-16 0.36 <1 16 17 <1 0.19 MPR-400 Powell Ave. West of 203rd Street 13-Sep-16 0.62 <1 <2 17 <1 0.21 MPR-400 Powell Ave. West of 203rd Street 20-Sep-16 0.4 <1 6 17
<1 0.23 MPR-400 Powell Ave. West of 203rd Street 27-Sep-16 0.5 <1 <2 16 <1 0.2
City of Maple Ridge Drinking Water Quality Report 2016 42 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-400 Powell Ave. West of 203rd Street 4-Oct-16 0.39 <1 8 16 <1 0.15 MPR-400 Powell Ave. West of 203rd Street 11-Oct-16 0.27 <1 8 15 <1 0.17 MPR-400 Powell Ave. West of 203rd
Street 18-Oct-16 0.38 <1 2 15 <1 0.29 MPR-400 Powell Ave. West of 203rd Street 25-Oct-16 0.37 <1 6 14 <1 0.3 MPR-400 Powell Ave. West of 203rd Street 1-Nov-16 0.13 <1 2 14 <1 0.32 MPR-400
Powell Ave. West of 203rd Street 8-Nov-16 0.28 <1 <2 14 <1 0.33 MPR-400 Powell Ave. West of 203rd Street 15-Nov-16 0.1 <1 12 13 <1 0.27 MPR-400 Powell Ave. West of 203rd Street 22-Nov-16
0.26 <1 4 13 <1 0.29 MPR-400 Powell Ave. West of 203rd Street 29-Nov-16 0.5 <1 10 12 <1 0.35 MPR-400 Powell Ave. West of 203rd Street 6-Dec-16 0.2 <1 10 12 <1 0.32 MPR-400 Powell Ave.
West of 203rd Street 13-Dec-16 0.42 <1 <2 10 <1 0.27 MPR-400 Powell Ave. West of 203rd Street 20-Dec-16 0.02 <1 2 10 <1 0.23 MPR-400 Powell Ave. West of 203rd Street 28-Dec-16 0.39
<1 NA 8 <1 0.2 MPR-431 Dewdney Trunk Rd. @201B St. 5-Jan-16 0.95 <1 <2 6 <1 0.3 MPR-431 Dewdney Trunk Rd. @201B St. 12-Jan-16 0.91 <1 <2 6 <1 0.32 MPR-431 Dewdney Trunk Rd. @201B St.
19-Jan-16 1.1 <1 <2 6 <1 0.32 MPR-431 Dewdney Trunk Rd. @201B St. 26-Jan-16 0.82 <1 <2 6 <1 0.34 MPR-431 Dewdney Trunk Rd. @201B St. 2-Feb-16 0.8 <1 <2 6 <1 0.36 MPR-431 Dewdney Trunk
Rd. @201B St. 9-Feb-16 1.2 <1 <2 6 <1 0.42 MPR-431 Dewdney Trunk Rd. @201B St. 16-Feb-16 1.1 <1 <2 6 <1 0.58 MPR-431 Dewdney Trunk Rd. @201B St. 23-Feb-16 0.83 <1 <2 7 <1 0.34 MPR-431
Dewdney Trunk Rd. @201B St. 1-Mar-16 0.63 <1 <2 8 <1 0.32 MPR-431 Dewdney Trunk Rd. @201B St. 8-Mar-16 0.61 <1 <2 8 <1 0.37 MPR-431 Dewdney Trunk Rd. @201B St. 15-Mar-16 0.69 <1 <2
8 <1 0.27 MPR-431 Dewdney Trunk Rd. @201B St. 22-Mar-16 0.68 <1 <2 8 <1 0.37 MPR-431 Dewdney Trunk Rd. @201B St. 29-Mar-16 0.75 <1 <2 9 <1 0.31 MPR-431 Dewdney Trunk Rd. @201B St. 5-Apr-16
0.75 <1 <2 9 <1 0.27 MPR-431 Dewdney Trunk Rd. @201B St. 12-Apr-16 0.87 <1 <2 10 <1 0.31 MPR-431 Dewdney Trunk Rd. @201B St. 19-Apr-16 0.81 <1 40 11 <1 0.4 MPR-431 Dewdney Trunk Rd.
@201B St. 26-Apr-16 0.74 <1 <2 11 <1 0.28 MPR-431 Dewdney Trunk Rd. @201B St. 3-May-16 0.58 <1 <2 12 <1 0.29 MPR-431 Dewdney Trunk Rd. @201B St. 10-May-16 0.73 <1 <2 13 <1 0.29 MPR-431
Dewdney Trunk Rd. @201B St. 17-May-16 0.71 <1 <2 14 <1 0.28 MPR-431 Dewdney Trunk Rd. @201B St. 24-May-16 0.81 <1 <2 13 <1 0.23 MPR-431 Dewdney Trunk Rd. @201B St. 31-May-16 0.73 <1
<2 15 <1 0.32 MPR-431 Dewdney Trunk Rd. @201B St. 7-Jun-16 0.61 <1 <2 13 <1 0.31 MPR-431 Dewdney Trunk Rd. @201B St. 14-Jun-16 0.93 <1 <2 13 <1 0.3 MPR-431 Dewdney Trunk Rd. @201B St.
21-Jun-16 0.85 <1 <2 13 <1 0.28 MPR-431 Dewdney Trunk Rd. @201B St. 28-Jun-16 1.02 <1 <2 14 <1 0.47
City of Maple Ridge Drinking Water Quality Report 2016 43 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-431 Dewdney Trunk Rd. @201B St. 5-Jul-16 1.03 <1 <2 15 <1 0.25 MPR-431 Dewdney Trunk Rd. @201B St. 12-Jul-16 0.98 <1 <2 15 <1 0.22 MPR-431 Dewdney Trunk Rd. @201B St. 19-Jul-16
0.82 <1 <2 15 <1 0.23 MPR-431 Dewdney Trunk Rd. @201B St. 26-Jul-16 1.02 <1 <2 17 <1 0.24 MPR-431 Dewdney Trunk Rd. @201B St. 2-Aug-16 1 <1 <2 17 <1 0.23 MPR-431 Dewdney Trunk Rd. @201B
St. 9-Aug-16 0.94 <1 <2 18 <1 0.38 MPR-431 Dewdney Trunk Rd. @201B St. 16-Aug-16 0.94 <1 <2 17 <1 0.27 MPR-431 Dewdney Trunk Rd. @201B St. 23-Aug-16 0.91 <1 88 19 <1 0.34 MPR-431 Dewdney
Trunk Rd. @201B St. 30-Aug-16 0.87 <1 4 18 <1 0.27 MPR-431 Dewdney Trunk Rd. @201B St. 6-Sep-16 0.85 <1 2 18 <1 0.57 MPR-431 Dewdney Trunk Rd. @201B St. 13-Sep-16 0.82 <1 <2 18 <1 0.32
MPR-431 Dewdney Trunk Rd. @201B St. 20-Sep-16 0.8 <1 <2 17 <1 0.36 MPR-431 Dewdney Trunk Rd. @201B St. 27-Sep-16 0.94 <1 2 17 <1 0.38 MPR-431 Dewdney Trunk Rd. @201B St. 4-Oct-16 0.84
<1 <2 16 <1 0.16 MPR-431 Dewdney Trunk Rd. @201B St. 11-Oct-16 1.54 <1 <2 15 <1 0.19 MPR-431 Dewdney Trunk Rd. @201B St. 18-Oct-16 0.77 <1 <2 13 <1 0.51 MPR-431 Dewdney Trunk Rd. @201B
St. 25-Oct-16 0.9 <1 <2 13 <1 0.33 MPR-431 Dewdney Trunk Rd. @201B St. 1-Nov-16 0.78 <1 <2 12 <1 0.42 MPR-431 Dewdney Trunk Rd. @201B St. 8-Nov-16 0.78 <1 2 12 <1 0.3 MPR-431 Dewdney
Trunk Rd. @201B St. 15-Nov-16 0.74 <1 <2 11 <1 0.37 MPR-431 Dewdney Trunk Rd. @201B St. 22-Nov-16 0.8 <1 2 11 <1 0.38 MPR-431 Dewdney Trunk Rd. @201B St. 29-Nov-16 0.64 <1 2 10 <1 0.32
MPR-431 Dewdney Trunk Rd. @201B St. 6-Dec-16 0.83 <1 <2 9 <1 0.57 MPR-431 Dewdney Trunk Rd. @201B St. 13-Dec-16 0.97 <1 <2 7 <1 0.28 MPR-431 Dewdney Trunk Rd. @201B St. 20-Dec-16 1.03
<1 <2 6 <1 0.35 MPR-431 Dewdney Trunk Rd. @201B St. 28-Dec-16 0.79 <1 NA 6 <1 0.22 MPR-432 224 St. @122 Ave. 5-Jan-16 0.82 <1 <2 6 <1 0.32 MPR-432 224 St. @122 Ave. 12-Jan-16 0.75 <1
<2 6 <1 0.31 MPR-432 224 St. @122 Ave. 19-Jan-16 0.85 <1 <2 6 <1 0.27 MPR-432 224 St. @122 Ave. 26-Jan-16 0.61 <1 <2 7 <1 0.33 MPR-432 224 St. @122 Ave. 2-Feb-16 0.9 <1 <2 7 <1 0.57
MPR-432 224 St. @122 Ave. 9-Feb-16 1 <1 <2 6 <1 0.44 MPR-432 224 St. @122 Ave. 16-Feb-16 0.81 <1 <2 7 <1 0.43 MPR-432 224 St. @122 Ave. 23-Feb-16 0.46 <1 10 7 <1 0.4 MPR-432 224 St.
@122 Ave. 1-Mar-16 0.67 <1 <2 7 <1 0.32 MPR-432 224 St. @122 Ave. 8-Mar-16 0.76 <1 <2 7 <1 0.4 MPR-432 224 St. @122 Ave. 15-Mar-16 0.91 <1 <2 8 <1 0.27 MPR-432 224 St. @122 Ave. 22-Mar-16
0.53 <1 <2 8 <1 0.28 MPR-432 224 St. @122 Ave. 29-Mar-16 0.49 <1 <2 8 <1 0.26
City of Maple Ridge Drinking Water Quality Report 2016 44 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-432 224 St. @122 Ave. 5-Apr-16 0.65 <1 <2 9 <1 0.48 MPR-432 224 St. @122 Ave. 12-Apr-16 0.63 <1 <2 9 <1 0.29 MPR-432 224 St. @122 Ave. 19-Apr-16 0.69 <1 <2 9 <1 0.32 MPR-432
224 St. @122 Ave. 26-Apr-16 0.64 <1 <2 10 <1 0.34 MPR-432 224 St. @122 Ave. 4-May-16 0.61 <1 <2 11 <1 0.28 MPR-432 224 St. @122 Ave. 10-May-16 0.6 <1 <2 12 <1 0.33 MPR-432 224 St. @122
Ave. 17-May-16 0.3 <1 <2 12 <1 0.28 MPR-432 224 St. @122 Ave. 24-May-16 0.39 <1 <2 13 <1 0.22 MPR-432 224 St. @122 Ave. 31-May-16 0.55 <1 10 12 <1 0.38 MPR-432 224 St. @122 Ave. 7-Jun-16
0.3 <1 4 13 <1 0.33 MPR-432 224 St. @122 Ave. 14-Jun-16 0.57 <1 <2 13 <1 0.32 MPR-432 224 St. @122 Ave. 21-Jun-16 0.52 <1 <2 13 <1 0.28 MPR-432 224 St. @122 Ave. 28-Jun-16 0.62 <1 <2
14 <1 0.46 MPR-432 224 St. @122 Ave. 5-Jul-16 0.4 <1 <2 15 <1 0.26 MPR-432 224 St. @122 Ave. 12-Jul-16 0.51 <1 <2 15 <1 0.24 MPR-432 224 St. @122 Ave. 19-Jul-16 0.3 <1 <2 15 <1 0.25
MPR-432 224 St. @122 Ave. 26-Jul-16 0.53 <1 <2 16 <1 0.31 MPR-432 224 St. @122 Ave. 2-Aug-16 0.51 <1 <2 17 <1 0.24 MPR-432 224 St. @122 Ave. 9-Aug-16 0.34 <1 6 17 <1 0.35 MPR-432 224
St. @122 Ave. 16-Aug-16 0.38 <1 <2 18 <1 0.29 MPR-432 224 St. @122 Ave. 23-Aug-16 0.4 <1 4 18 <1 0.25 MPR-432 224 St. @122 Ave. 30-Aug-16 0.42 <1 <2 18 <1 0.24 MPR-432 224 St. @122
Ave. 6-Sep-16 0.46 <1 <2 17 <1 0.29 MPR-432 224 St. @122 Ave. 13-Sep-16 0.44 <1 2 17 <1 0.28 MPR-432 224 St. @122 Ave. 20-Sep-16 0.18 <1 <2 17 <1 0.36 MPR-432 224 St. @122 Ave. 27-Sep-16
0.66 <1 <2 16 <1 0.32 MPR-432 224 St. @122 Ave. 4-Oct-16 0.64 <1 2 15 <1 0.21 MPR-432 224 St. @122 Ave. 11-Oct-16 0.51 <1 <2 14 <1 0.27 MPR-432 224 St. @122 Ave. 18-Oct-16 0.59 <1 <2
12 <1 0.42 MPR-432 224 St. @122 Ave. 25-Oct-16 0.58 <1 <2 12 <1 0.33 MPR-432 224 St. @122 Ave. 1-Nov-16 0.5 <1 <2 11 <1 0.41 MPR-432 224 St. @122 Ave. 8-Nov-16 0.62 <1 <2 12 <1 0.36
MPR-432 224 St. @122 Ave. 15-Nov-16 0.56 <1 <2 10 <1 0.37 MPR-432 224 St. @122 Ave. 22-Nov-16 0.48 <1 <2 10 <1 0.34 MPR-432 224 St. @122 Ave. 29-Nov-16 0.51 <1 <2 9 <1 0.61 MPR-432
224 St. @122 Ave. 6-Dec-16 0.58 <1 <2 8 <1 0.41 MPR-432 224 St. @122 Ave. 13-Dec-16 0.71 <1 <2 6 <1 0.28 MPR-432 224 St. @122 Ave. 20-Dec-16 0.62 <1 2 6 <1 0.28 MPR-432 224 St. @122
Ave. 28-Dec-16 0.57 <1 NA 5 <1 0.23
City of Maple Ridge Drinking Water Quality Report 2016 45 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-433 232 St. North of 130 Ave. 5-Jan-16 0.66 <1 <2 6 <1 0.33 MPR-433 232 St. North of 130 Ave. 12-Jan-16 0.71 <1 <2 6 <1 0.3 MPR-433 232 St. North of 130 Ave. 19-Jan-16 0.91
<1 <2 6 <1 0.29 MPR-433 232 St. North of 130 Ave. 26-Jan-16 0.59 <1 <2 6 <1 0.34 MPR-433 232 St. North of 130 Ave. 2-Feb-16 1.1 <1 <2 6 <1 0.77 MPR-433 232 St. North of 130 Ave. 9-Feb-16
1.1 <1 <2 6 <1 0.48 MPR-433 232 St. North of 130 Ave. 16-Feb-16 0.94 <1 <2 6 <1 0.42 MPR-433 232 St. North of 130 Ave. 23-Feb-16 0.7 <1 <2 6 <1 0.41 MPR-433 232 St. North of 130 Ave.
1-Mar-16 0.74 <1 2 7 <1 0.31 MPR-433 232 St. North of 130 Ave. 8-Mar-16 1 <1 <2 7 <1 0.35 MPR-433 232 St. North of 130 Ave. 15-Mar-16 0.59 <1 <2 7 <1 0.26 MPR-433 232 St. North of 130
Ave. 22-Mar-16 0.74 <1 <2 7 <1 0.31 MPR-433 232 St. North of 130 Ave. 29-Mar-16 0.66 <1 <2 7 <1 0.25 MPR-433 232 St. North of 130 Ave. 5-Apr-16 0.82 <1 <2 8 <1 0.46 MPR-433 232 St.
North of 130 Ave. 12-Apr-16 0.81 <1 <2 9 <1 0.3 MPR-433 232 St. North of 130 Ave. 19-Apr-16 0.69 <1 <2 9 <1 0.27 MPR-433 232 St. North of 130 Ave. 26-Apr-16 0.79 <1 <2 8 <1 0.3 MPR-433
232 St. North of 130 Ave. 3-May-16 0.66 <1 <2 10 <1 0.29 MPR-433 232 St. North of 130 Ave. 10-May-16 0.45 <1 2 11 <1 0.32 MPR-433 232 St. North of 130 Ave. 17-May-16 0.55 <1 2 11 <1
0.28 MPR-433 232 St. North of 130 Ave. 24-May-16 0.65 <1 2 11 <1 0.24 MPR-433 232 St. North of 130 Ave. 31-May-16 0.8 <1 2 11 <1 0.28 MPR-433 232 St. North of 130 Ave. 7-Jun-16 0.47
<1 <2 12 <1 0.31 MPR-433 232 St. North of 130 Ave. 14-Jun-16 0.64 <1 <2 12 <1 0.26 MPR-433 232 St. North of 130 Ave. 21-Jun-16 0.66 <1 <2 12 <1 0.27 MPR-433 232 St. North of 130 Ave.
28-Jun-16 0.95 <1 <2 13 <1 0.39 MPR-433 232 St. North of 130 Ave. 5-Jul-16 0.6 <1 <2 13 <1 0.31 MPR-433 232 St. North of 130 Ave. 12-Jul-16 0.83 <1 <2 13 <1 0.24 MPR-433 232 St. North
of 130 Ave. 19-Jul-16 0.86 <1 <2 13 <1 0.24 MPR-433 232 St. North of 130 Ave. 26-Jul-16 0.94 <1 <2 15 <1 0.3 MPR-433 232 St. North of 130 Ave. 2-Aug-16 0.9 <1 <2 16 <1 0.24 MPR-433
232 St. North of 130 Ave. 9-Aug-16 0.88 <1 <2 16 <1 0.47 MPR-433 232 St. North of 130 Ave. 16-Aug-16 0.83 <1 <2 16 <1 0.33 MPR-433 232 St. North of 130 Ave. 23-Aug-16 0.83 <1 <2 17
<1 0.26 MPR-433 232 St. North of 130 Ave. 30-Aug-16 1.08 <1 <2 17 <1 0.27 MPR-433 232 St. North of 130 Ave. 6-Sep-16 0.76 <1 <2 16 <1 0.26 MPR-433 232 St. North of 130 Ave. 13-Sep-16
0.69 <1 <2 16 <1 0.28 MPR-433 232 St. North of 130 Ave. 20-Sep-16 0.8 <1 <2 16 <1 0.23 MPR-433 232 St. North of 130 Ave. 27-Sep-16 0.98 <1 <2 15 <1 0.24
City of Maple Ridge Drinking Water Quality Report 2016 46 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-433 232 St. North of 130 Ave. 4-Oct-16 0.65 <1 2 15 <1 0.18 MPR-433 232 St. North of 130 Ave. 11-Oct-16 0.69 <1 <2 13 <1 0.23 MPR-433 232 St. North of 130 Ave. 18-Oct-16 0.9
<1 <2 11 <1 0.41 MPR-433 232 St. North of 130 Ave. 25-Oct-16 0.58 <1 <2 12 <1 0.37 MPR-433 232 St. North of 130 Ave. 1-Nov-16 0.75 <1 <2 11 <1 0.48 MPR-433 232 St. North of 130 Ave.
8-Nov-16 0.99 <1 <2 11 <1 0.28 MPR-433 232 St. North of 130 Ave. 15-Nov-16 0.77 <1 <2 10 <1 0.37 MPR-433 232 St. North of 130 Ave. 22-Nov-16 0.54 <1 <2 11 <1 0.32 MPR-433 232 St. North
of 130 Ave. 29-Nov-16 0.3 <1 <2 9 <1 0.35 MPR-433 232 St. North of 130 Ave. 6-Dec-16 0.82 <1 <2 8 <1 0.52 MPR-433 232 St. North of 130 Ave. 13-Dec-16 0.75 <1 <2 6 <1 0.27 MPR-433 232
St. North of 130 Ave. 20-Dec-16 0.63 <1 <2 6 <1 0.27 MPR-433 232 St. North of 130 Ave. 28-Dec-16 0.57 <1 NA 6 <1 0.22 MPR-434 102 Ave. East of 241A St. 5-Jan-16 0.81 <1 <2 6 <1 0.31
MPR-434 102 Ave. East of 241A St. 12-Jan-16 0.86 <1 <2 7 <1 0.29 MPR-434 102 Ave. East of 241A St. 19-Jan-16 0.77 <1 <2 6 <1 0.29 MPR-434 102 Ave. East of 241A St. 26-Jan-16 0.66 <1
<2 7 <1 0.32 MPR-434 102 Ave. East of 241A St. 2-Feb-16 0.74 <1 <2 7 <1 0.36 MPR-434 102 Ave. East of 241A St. 9-Feb-16 1.1 <1 <2 6 <1 0.49 MPR-434 102 Ave. East of 241A St. 16-Feb-16
0.89 <1 <2 7 <1 0.49 MPR-434 102 Ave. East of 241A St. 23-Feb-16 0.81 <1 <2 7 <1 0.35 MPR-434 102 Ave. East of 241A St. 1-Mar-16 0.75 <1 <2 7 <1 0.34 MPR-434 102 Ave. East of 241A St.
8-Mar-16 0.6 <1 <2 8 <1 0.41 MPR-434 102 Ave. East of 241A St. 15-Mar-16 0.39 <1 <2 8 <1 0.33 MPR-434 102 Ave. East of 241A St. 22-Mar-16 0.69 <1 <2 8 <1 0.3 MPR-434 102 Ave. East of
241A St. 29-Mar-16 0.48 <1 <2 8 <1 0.3 MPR-434 102 Ave. East of 241A St. 5-Apr-16 0.75 <1 <2 9 <1 0.45 MPR-434 102 Ave. East of 241A St. 12-Apr-16 0.63 <1 44 10 <1 0.35 MPR-434 102
Ave. East of 241A St. 19-Apr-16 0.68 <1 <2 12 <1 0.28 MPR-434 102 Ave. East of 241A St. 26-Apr-16 0.72 <1 <2 11 <1 0.34 MPR-434 102 Ave. East of 241A St. 4-May-16 0.67 <1 <2 11 <1 0.28
MPR-434 102 Ave. East of 241A St. 10-May-16 0.66 <1 <2 13 <1 0.22 MPR-434 102 Ave. East of 241A St. 17-May-16 0.45 <1 <2 13 <1 0.29 MPR-434 102 Ave. East of 241A St. 24-May-16 0.63
<1 <2 13 <1 0.2 MPR-434 102 Ave. East of 241A St. 31-May-16 0.71 <1 <2 13 <1 0.29 MPR-434 102 Ave. East of 241A St. 7-Jun-16 0.47 <1 <2 16 <1 0.31 MPR-434 102 Ave. East of 241A St.
14-Jun-16 0.78 <1 <2 14 <1 0.27 MPR-434 102 Ave. East of 241A St. 21-Jun-16 0.75 <1 <2 13 <1 0.26 MPR-434 102 Ave. East of 241A St. 28-Jun-16 0.92 <1 <2 15 <1 0.39
City of Maple Ridge Drinking Water Quality Report 2016 47 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-434 102 Ave. East of 241A St. 5-Jul-16 0.72 <1 2 15 <1 0.38 MPR-434 102 Ave. East of 241A St. 12-Jul-16 0.92 <1 2 15 <1 0.21 MPR-434 102 Ave. East of 241A St. 19-Jul-16 0.71
<1 <2 16 <1 0.32 MPR-434 102 Ave. East of 241A St. 26-Jul-16 0.88 <1 <2 16 <1 0.27 MPR-434 102 Ave. East of 241A St. 2-Aug-16 0.86 <1 <2 17 <1 0.27 MPR-434 102 Ave. East of 241A St.
9-Aug-16 0.83 <1 <2 18 <1 0.3 MPR-434 102 Ave. East of 241A St. 16-Aug-16 0.8 <1 <2 18 <1 0.33 MPR-434 102 Ave. East of 241A St. 23-Aug-16 0.8 <1 <2 19 <1 0.29 MPR-434 102 Ave. East
of 241A St. 30-Aug-16 0.81 <1 <2 19 <1 0.29 MPR-434 102 Ave. East of 241A St. 6-Sep-16 0.71 <1 <2 17 <1 0.3 MPR-434 102 Ave. East of 241A St. 13-Sep-16 0.7 <1 <2 17 <1 0.24 MPR-434
102 Ave. East of 241A St. 20-Sep-16 0.67 <1 <2 17 <1 0.24 MPR-434 102 Ave. East of 241A St. 27-Sep-16 0.69 <1 <2 17 <1 0.29 MPR-434 102 Ave. East of 241A St. 4-Oct-16 0.66 <1 <2 16
<1 0.2 MPR-434 102 Ave. East of 241A St. 11-Oct-16 0.51 <1 <2 15 <1 0.2 MPR-434 102 Ave. East of 241A St. 18-Oct-16 0.4 <1 <2 14 <1 0.32 MPR-434 102 Ave. East of 241A St. 25-Oct-16
0.72 <1 <2 13 <1 0.4 MPR-434 102 Ave. East of 241A St. 1-Nov-16 0.53 <1 2 12 <1 0.42 MPR-434 102 Ave. East of 241A St. 8-Nov-16 0.6 <1 <2 12 <1 0.34 MPR-434 102 Ave. East of 241A St.
15-Nov-16 0.56 <1 <2 12 <1 0.35 MPR-434 102 Ave. East of 241A St. 22-Nov-16 0.51 <1 <2 12 <1 0.32 MPR-434 102 Ave. East of 241A St. 29-Nov-16 0.5 <1 <2 11 <1 0.31 MPR-434 102 Ave. East
of 241A St. 6-Dec-16 0.52 <1 <2 9 <1 0.42 MPR-434 102 Ave. East of 241A St. 13-Dec-16 0.71 <1 <2 7 <1 0.29 MPR-434 102 Ave. East of 241A St. 20-Dec-16 0.73 <1 <2 7 <1 0.29 MPR-434 102
Ave. East of 241A St. 28-Dec-16 0.71 <1 NA 6 <1 0.23 MPR-435 240 St. South of Abernethy Way 5-Jan-16 0.53 <1 <2 6 <1 0.29 MPR-435 240 St. South of Abernethy Way 12-Jan-16 0.46 <1 <2
6 <1 0.3 MPR-435 240 St. South of Abernethy Way 19-Jan-16 0.52 <1 <2 6 <1 0.25 MPR-435 240 St. South of Abernethy Way 26-Jan-16 0.34 <1 <2 7 <1 0.28 MPR-435 240 St. South of Abernethy
Way 2-Feb-16 0.51 <1 <2 7 <1 0.33 MPR-435 240 St. South of Abernethy Way 9-Feb-16 0.69 <1 <2 7 <1 0.57 MPR-435 240 St. South of Abernethy Way 16-Feb-16 0.43 <1 <2 7 <1 0.37 MPR-435
240 St. South of Abernethy Way 23-Feb-16 0.35 <1 <2 7 <1 0.34 MPR-435 240 St. South of Abernethy Way 1-Mar-16 0.44 <1 <2 8 <1 0.29 MPR-435 240 St. South of Abernethy Way 8-Mar-16 0.74
<1 <2 8 <1 0.36 MPR-435 240 St. South of Abernethy Way 15-Mar-16 0.28 <1 <2 8 <1 0.25 MPR-435 240 St. South of Abernethy Way 22-Mar-16 0.44 <1 <2 8 <1 0.25 MPR-435 240 St. South of
Abernethy Way 29-Mar-16 0.53 <1 <2 9 <1 0.27
City of Maple Ridge Drinking Water Quality Report 2016 48 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-435 240 St. South of Abernethy Way 5-Apr-16 0.32 <1 <2 10 <1 0.3 MPR-435 240 St. South of Abernethy Way 12-Apr-16 0.29 <1 <2 11 <1 0.36 MPR-435 240 St. South of Abernethy Way
19-Apr-16 0.31 <1 <2 11 <1 0.24 MPR-435 240 St. South of Abernethy Way 26-Apr-16 0.37 <1 <2 11 <1 0.27 MPR-435 240 St. South of Abernethy Way 3-May-16 0.56 <1 <2 11 <1 0.25 MPR-435
240 St. South of Abernethy Way 10-May-16 0.37 <1 2 13 <1 0.29 MPR-435 240 St. South of Abernethy Way 17-May-16 0.22 <1 <2 14 <1 0.27 MPR-435 240 St. South of Abernethy Way 24-May-16
0.54 <1 <2 13 <1 0.21 MPR-435 240 St. South of Abernethy Way 31-May-16 0.49 <1 2 13 <1 0.3 MPR-435 240 St. South of Abernethy Way 7-Jun-16 0.45 <1 <2 14 <1 0.25 MPR-435 240 St. South
of Abernethy Way 14-Jun-16 0.22 <1 <2 14 <1 0.26 MPR-435 240 St. South of Abernethy Way 21-Jun-16 0.2 <1 <2 14 <1 0.24 MPR-435 240 St. South of Abernethy Way 28-Jun-16 0.56 <1 <2 14
<1 0.38 MPR-435 240 St. South of Abernethy Way 5-Jul-16 0.38 <1 2 16 <1 0.26 MPR-435 240 St. South of Abernethy Way 12-Jul-16 0.51 <1 <2 17 <1 0.24 MPR-435 240 St. South of Abernethy
Way 19-Jul-16 0.27 <1 <2 16 <1 0.31 MPR-435 240 St. South of Abernethy Way 26-Jul-16 0.51 <1 <2 17 <1 0.24 MPR-435 240 St. South of Abernethy Way 2-Aug-16 0.4 <1 <2 17 <1 0.23 MPR-435
240 St. South of Abernethy Way 9-Aug-16 0.38 <1 <2 18 <1 0.26 MPR-435 240 St. South of Abernethy Way 16-Aug-16 0.44 <1 <2 17 <1 0.26 MPR-435 240 St. South of Abernethy Way 23-Aug-16
0.34 <1 <2 19 <1 0.26 MPR-435 240 St. South of Abernethy Way 30-Aug-16 0.36 <1 2 19 <1 0.27 MPR-435 240 St. South of Abernethy Way 6-Sep-16 0.2 <1 <2 18 <1 0.29 MPR-435 240 St. South
of Abernethy Way 13-Sep-16 0.37 <1 <2 17 <1 0.23 MPR-435 240 St. South of Abernethy Way 20-Sep-16 0.32 <1 <2 18 <1 0.22 MPR-435 240 St. South of Abernethy Way 27-Sep-16 0.26 <1 <2 17
<1 0.17 MPR-435 240 St. South of Abernethy Way 4-Oct-16 0.27 <1 <2 16 <1 0.19 MPR-435 240 St. South of Abernethy Way 11-Oct-16 0.19 <1 <2 15 <1 0.18 MPR-435 240 St. South of Abernethy
Way 18-Oct-16 0.36 <1 2 14 <1 0.35 MPR-435 240 St. South of Abernethy Way 25-Oct-16 0.25 <1 <2 13 <1 0.33 MPR-435 240 St. South of Abernethy Way 1-Nov-16 0.27 <1 <2 13 <1 0.42 MPR-435
240 St. South of Abernethy Way 8-Nov-16 0.13 <1 <2 12 <1 0.44 MPR-435 240 St. South of Abernethy Way 15-Nov-16 0.14 <1 <2 12 <1 0.35 MPR-435 240 St. South of Abernethy Way 22-Nov-16
0.21 <1 <2 10 <1 0.32 MPR-435 240 St. South of Abernethy Way 29-Nov-16 0.34 <1 <2 10 <1 0.32 MPR-435 240 St. South of Abernethy Way 6-Dec-16 0.12 <1 <2 9 <1 0.4 MPR-435 240 St. South
of Abernethy Way 13-Dec-16 0.46 <1 <2 8 <1 0.27 MPR-435 240 St. South of Abernethy Way 20-Dec-16 0.58 <1 <2 6 <1 0.3 MPR-435 240 St. South of Abernethy Way 28-Dec-16 0.28 <1 NA 5 <1
0.23
City of Maple Ridge Drinking Water Quality Report 2016 49 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-436 125 Ave. West of Ansell St. 5-Jan-16 1.2 <1 <2 6 <1 0.3 MPR-436 125 Ave. West of Ansell St. 12-Jan-16 1 <1 <2 6 <1 0.33 MPR-436 125 Ave. West of Ansell St. 19-Jan-16 1.4
<1 <2 6 <1 0.29 MPR-436 125 Ave. West of Ansell St. 26-Jan-16 0.89 <1 <2 7 <1 0.28 MPR-436 125 Ave. West of Ansell St. 2-Feb-16 1.1 <1 <2 7 <1 0.35 MPR-436 125 Ave. West of Ansell St.
9-Feb-16 1.2 <1 <2 7 <1 0.34 MPR-436 125 Ave. West of Ansell St. 16-Feb-16 1 <1 <2 7 <1 0.36 MPR-436 125 Ave. West of Ansell St. 23-Feb-16 0.82 <1 <2 7 <1 0.46 MPR-436 125 Ave. West
of Ansell St. 1-Mar-16 1 <1 <2 7 <1 0.39 MPR-436 125 Ave. West of Ansell St. 8-Mar-16 1 <1 6 8 <1 0.4 MPR-436 125 Ave. West of Ansell St. 15-Mar-16 0.69 <1 <2 8 <1 0.27 MPR-436 125
Ave. West of Ansell St. 22-Mar-16 0.85 <1 <2 8 <1 0.24 MPR-436 125 Ave. West of Ansell St. 29-Mar-16 0.68 <1 2 10 <1 0.26 MPR-436 125 Ave. West of Ansell St. 5-Apr-16 0.74 <1 <2 10
<1 0.35 MPR-436 125 Ave. West of Ansell St. 12-Apr-16 0.78 <1 <2 11 <1 0.24 MPR-436 125 Ave. West of Ansell St. 19-Apr-16 0.83 <1 <2 11 <1 0.24 MPR-436 125 Ave. West of Ansell St. 26-Apr-16
0.43 <1 <2 12 <1 0.25 MPR-436 125 Ave. West of Ansell St. 3-May-16 0.95 <1 <2 12 <1 0.27 MPR-436 125 Ave. West of Ansell St. 10-May-16 0.69 <1 <2 12 <1 0.22 MPR-436 125 Ave. West of
Ansell St. 17-May-16 0.74 <1 <2 13 <1 0.28 MPR-436 125 Ave. West of Ansell St. 24-May-16 0.92 <1 <2 12 <1 0.2 MPR-436 125 Ave. West of Ansell St. 31-May-16 0.98 <1 <2 13 <1 0.27 MPR-436
125 Ave. West of Ansell St. 7-Jun-16 0.52 <1 <2 15 <1 0.25 MPR-436 125 Ave. West of Ansell St. 14-Jun-16 0.69 <1 <2 15 <1 0.23 MPR-436 125 Ave. West of Ansell St. 21-Jun-16 0.46 <1
<2 15 <1 0.27 MPR-436 125 Ave. West of Ansell St. 28-Jun-16 1.11 <1 <2 15 <1 0.39 MPR-436 125 Ave. West of Ansell St. 5-Jul-16 0.63 <1 2 16 <1 0.4 MPR-436 125 Ave. West of Ansell St.
12-Jul-16 0.82 <1 2 16 <1 0.19 MPR-436 125 Ave. West of Ansell St. 19-Jul-16 0.8 <1 <2 16 <1 0.25 MPR-436 125 Ave. West of Ansell St. 26-Jul-16 0.95 <1 <2 16 <1 0.2 MPR-436 125 Ave.
West of Ansell St. 2-Aug-16 1.19 <1 <2 17 <1 0.22 MPR-436 125 Ave. West of Ansell St. 9-Aug-16 0.93 <1 <2 17 <1 0.44 MPR-436 125 Ave. West of Ansell St. 16-Aug-16 1.19 <1 <2 17 <1 0.23
MPR-436 125 Ave. West of Ansell St. 23-Aug-16 0.95 <1 <2 18 <1 0.2 MPR-436 125 Ave. West of Ansell St. 30-Aug-16 0.8 <1 <2 18 <1 0.22 MPR-436 125 Ave. West of Ansell St. 6-Sep-16 0.26
<1 <2 18 <1 0.21 MPR-436 125 Ave. West of Ansell St. 13-Sep-16 0.95 <1 <2 17 <1 0.21 MPR-436 125 Ave. West of Ansell St. 20-Sep-16 0.47 <1 <2 16 <1 0.17 MPR-436 125 Ave. West of Ansell
St. 27-Sep-16 0.26 <1 <2 17 <1 0.19
City of Maple Ridge Drinking Water Quality Report 2016 50 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-436 125 Ave. West of Ansell St. 4-Oct-16 0.58 <1 <2 15 <1 0.21 MPR-436 125 Ave. West of Ansell St. 11-Oct-16 0.46 <1 <2 14 <1 0.15 MPR-436 125 Ave. West of Ansell St. 18-Oct-16
0.69 <1 <2 14 <1 0.19 MPR-436 125 Ave. West of Ansell St. 25-Oct-16 0.12 <1 <2 12 <1 0.3 MPR-436 125 Ave. West of Ansell St. 1-Nov-16 0.46 <1 <2 12 <1 0.33 MPR-436 125 Ave. West of
Ansell St. 8-Nov-16 0 <1 4 11 <1 0.29 MPR-436 125 Ave. West of Ansell St. 15-Nov-16 0 <1 4 12 <1 0.28 MPR-436 125 Ave. West of Ansell St. 22-Nov-16 0 <1 2 11 <1 0.26 MPR-436 125 Ave.
West of Ansell St. 29-Nov-16 0.38 <1 <2 10 <1 0.32 MPR-436 125 Ave. West of Ansell St. 6-Dec-16 0.86 <1 <2 9 <1 0.41 MPR-436 125 Ave. West of Ansell St. 13-Dec-16 1.05 <1 <2 7 <1 0.26
MPR-436 125 Ave. West of Ansell St. 20-Dec-16 0.59 <1 <2 6 <1 0.26 MPR-436 125 Ave. West of Ansell St. 28-Dec-16 0.5 <1 NA 5 <1 0.2 MPR-437 248 St. @116 Ave. 5-Jan-16 1.3 <1 <2 5 <1
0.35 MPR-437 248 St. @116 Ave. 12-Jan-16 1 <1 <2 5 <1 0.34 MPR-437 248 St. @116 Ave. 19-Jan-16 1.3 <1 <2 6 <1 0.31 MPR-437 248 St. @116 Ave. 26-Jan-16 1 <1 <2 6 <1 0.3 MPR-437 248 St.
@116 Ave. 2-Feb-16 1.2 <1 <2 6 <1 0.47 MPR-437 248 St. @116 Ave. 9-Feb-16 1.3 <1 <2 7 <1 0.48 MPR-437 248 St. @116 Ave. 16-Feb-16 0.9 <1 4 7 <1 0.4 MPR-437 248 St. @116 Ave. 23-Feb-16
1.1 <1 <2 7 <1 0.37 MPR-437 248 St. @116 Ave. 1-Mar-16 1.2 <1 <2 7 <1 0.37 MPR-437 248 St. @116 Ave. 8-Mar-16 1.4 <1 <2 8 <1 0.34 MPR-437 248 St. @116 Ave. 15-Mar-16 0.76 <1 <2 8 <1
0.31 MPR-437 248 St. @116 Ave. 22-Mar-16 1.1 <1 <2 8 <1 0.28 MPR-437 248 St. @116 Ave. 29-Mar-16 1.1 <1 <2 8 <1 0.54 MPR-437 248 St. @116 Ave. 5-Apr-16 0.87 <1 <2 9 <1 0.4 MPR-437 248
St. @116 Ave. 12-Apr-16 0.65 <1 <2 10 <1 0.3 MPR-437 248 St. @116 Ave. 19-Apr-16 0.77 <1 <2 10 <1 0.24 MPR-437 248 St. @116 Ave. 26-Apr-16 0.88 <1 <2 10 <1 0.26 MPR-437 248 St. @116
Ave. 4-May-16 0.69 <1 <2 11 <1 0.27 MPR-437 248 St. @116 Ave. 10-May-16 0.62 <1 2 12 <1 16 MPR-437 248 St. @116 Ave. 17-May-16 0.57 <1 <2 13 <1 0.25 MPR-437 248 St. @116 Ave. 24-May-16
0.81 <1 <2 12 <1 0.24 MPR-437 248 St. @116 Ave. 31-May-16 0.88 <1 <2 13 <1 0.36 MPR-437 248 St. @116 Ave. 7-Jun-16 0.67 <1 <2 13 <1 0.35 MPR-437 248 St. @116 Ave. 14-Jun-16 0.99 <1
<2 13 <1 0.26 MPR-437 248 St. @116 Ave. 21-Jun-16 0.86 <1 <2 12 <1 0.25 MPR-437 248 St. @116 Ave. 28-Jun-16 1.05 <1 <2 13 <1 0.32
City of Maple Ridge Drinking Water Quality Report 2016 51 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-437 248 St. @116 Ave. 5-Jul-16 0.96 <1 4 14 <1 0.41 MPR-437 248 St. @116 Ave. 12-Jul-16 0.97 <1 <2 14 <1 0.23 MPR-437 248 St. @116 Ave. 19-Jul-16 0.88 <1 <2 15 <1 0.33 MPR-437
248 St. @116 Ave. 26-Jul-16 0.94 <1 <2 16 <1 0.22 MPR-437 248 St. @116 Ave. 2-Aug-16 0.96 <1 <2 16 <1 0.25 MPR-437 248 St. @116 Ave. 9-Aug-16 0.9 <1 <2 16 <1 0.29 MPR-437 248 St. @116
Ave. 16-Aug-16 0.93 <1 <2 17 <1 0.27 MPR-437 248 St. @116 Ave. 23-Aug-16 0.83 <1 <2 17 <1 0.28 MPR-437 248 St. @116 Ave. 30-Aug-16 1.13 <1 <2 17 <1 0.28 MPR-437 248 St. @116 Ave. 6-Sep-16
0.85 <1 <2 16 <1 0.25 MPR-437 248 St. @116 Ave. 13-Sep-16 0.86 <1 <2 16 <1 0.25 MPR-437 248 St. @116 Ave. 20-Sep-16 0.83 <1 <2 16 <1 0.26 MPR-437 248 St. @116 Ave. 27-Sep-16 0.93 <1
2 15 <1 0.26 MPR-437 248 St. @116 Ave. 4-Oct-16 0.93 <1 <2 14 <1 0.18 MPR-437 248 St. @116 Ave. 11-Oct-16 0.42 <1 <2 14 <1 0.19 MPR-437 248 St. @116 Ave. 18-Oct-16 0.86 <1 <2 13 <1
0.21 MPR-437 248 St. @116 Ave. 25-Oct-16 0.64 <1 <2 13 <1 0.34 MPR-437 248 St. @116 Ave. 1-Nov-16 0.53 <1 <2 12 <1 0.37 MPR-437 248 St. @116 Ave. 8-Nov-16 0.83 <1 <2 11 <1 0.39 MPR-437
248 St. @116 Ave. 15-Nov-16 0.16 <1 <2 11 <1 0.42 MPR-437 248 St. @116 Ave. 22-Nov-16 0.55 <1 <2 10 <1 0.33 MPR-437 248 St. @116 Ave. 29-Nov-16 1.08 <1 2 9 <1 0.37 MPR-437 248 St. @116
Ave. 6-Dec-16 1.09 <1 <2 9 <1 0.37 MPR-437 248 St. @116 Ave. 13-Dec-16 0.85 <1 <2 7 <1 0.24 MPR-437 248 St. @116 Ave. 20-Dec-16 0.95 <1 <2 6 <1 0.34 MPR-437 248 St. @116 Ave. 28-Dec-16
1 <1 NA 5 <1 0.24 MPR-438 125 Ave. West off 256 St. 5-Jan-16 1.1 <1 <2 6 <1 0.27 MPR-438 125 Ave. West off 256 St. 12-Jan-16 1.2 <1 <2 6 <1 0.32 MPR-438 125 Ave. West off 256 St. 19-Jan-16
1.3 <1 <2 6 <1 0.39 MPR-438 125 Ave. West off 256 St. 26-Jan-16 0.86 <1 <2 7 <1 0.29 MPR-438 125 Ave. West off 256 St. 2-Feb-16 1.2 <1 <2 7 <1 0.42 MPR-438 125 Ave. West off 256 St.
9-Feb-16 1.1 <1 <2 7 <1 0.51 MPR-438 125 Ave. West off 256 St. 16-Feb-16 0.95 <1 <2 7 <1 0.43 MPR-438 125 Ave. West off 256 St. 23-Feb-16 0.91 <1 <2 7 <1 0.39 MPR-438 125 Ave. West
off 256 St. 1-Mar-16 0.95 <1 <2 7 <1 0.38 MPR-438 125 Ave. West off 256 St. 8-Mar-16 1.5 <1 <2 8 <1 0.35 MPR-438 125 Ave. West off 256 St. 15-Mar-16 0.67 <1 <2 7 <1 0.28 MPR-438 125
Ave. West off 256 St. 22-Mar-16 0.87 <1 <2 8 <1 0.32 MPR-438 125 Ave. West off 256 St. 29-Mar-16 0.84 <1 <2 8 <1 0.34
City of Maple Ridge Drinking Water Quality Report 2016 52 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-438 125 Ave. West off 256 St. 5-Apr-16 0.66 <1 <2 9 <1 0.31 MPR-438 125 Ave. West off 256 St. 12-Apr-16 0.91 <1 <2 10 <1 0.38 MPR-438 125 Ave. West off 256 St. 19-Apr-16 0.8
<1 <2 10 <1 0.25 MPR-438 125 Ave. West off 256 St. 26-Apr-16 0.88 <1 <2 11 <1 0.29 MPR-438 125 Ave. West off 256 St. 4-May-16 0.67 <1 <2 12 <1 0.26 MPR-438 125 Ave. West off 256 St.
10-May-16 0.81 <1 <2 12 <1 0.31 MPR-438 125 Ave. West off 256 St. 17-May-16 0.49 <1 <2 13 <1 0.29 MPR-438 125 Ave. West off 256 St. 24-May-16 0.89 <1 <2 12 <1 0.22 MPR-438 125 Ave.
West off 256 St. 31-May-16 0.79 <1 <2 12 <1 0.43 MPR-438 125 Ave. West off 256 St. 7-Jun-16 0.45 <1 <2 14 <1 0.33 MPR-438 125 Ave. West off 256 St. 14-Jun-16 0.74 <1 <2 13 <1 0.25 MPR-438
125 Ave. West off 256 St. 21-Jun-16 0.8 <1 <2 13 <1 0.29 MPR-438 125 Ave. West off 256 St. 28-Jun-16 1.04 <1 <2 13 <1 0.33 MPR-438 125 Ave. West off 256 St. 5-Jul-16 0.75 <1 <2 14 <1
0.33 MPR-438 125 Ave. West off 256 St. 12-Jul-16 0.98 <1 <2 14 <1 0.23 MPR-438 125 Ave. West off 256 St. 19-Jul-16 0.69 <1 <2 15 <1 0.19 MPR-438 125 Ave. West off 256 St. 26-Jul-16
0.99 <1 2 15 <1 0.24 MPR-438 125 Ave. West off 256 St. 2-Aug-16 0.97 <1 <2 16 <1 0.27 MPR-438 125 Ave. West off 256 St. 9-Aug-16 0.99 <1 <2 16 <1 0.33 MPR-438 125 Ave. West off 256
St. 16-Aug-16 0.68 <1 <2 17 <1 0.32 MPR-438 125 Ave. West off 256 St. 23-Aug-16 0.8 <1 <2 17 <1 0.27 MPR-438 125 Ave. West off 256 St. 30-Aug-16 1.11 <1 <2 17 <1 0.44 MPR-438 125 Ave.
West off 256 St. 6-Sep-16 0.85 <1 <2 17 <1 0.23 MPR-438 125 Ave. West off 256 St. 13-Sep-16 0.82 <1 <2 16 <1 0.23 MPR-438 125 Ave. West off 256 St. 20-Sep-16 0.68 <1 <2 16 <1 0.24 MPR-438
125 Ave. West off 256 St. 27-Sep-16 0.92 <1 <2 16 <1 0.2 MPR-438 125 Ave. West off 256 St. 4-Oct-16 1.03 <1 <2 16 <1 0.21 MPR-438 125 Ave. West off 256 St. 11-Oct-16 0.66 <1 <2 14 <1
0.18 MPR-438 125 Ave. West off 256 St. 18-Oct-16 0.78 <1 <2 13 <1 0.25 MPR-438 125 Ave. West off 256 St. 25-Oct-16 0.52 <1 <2 13 <1 0.36 MPR-438 125 Ave. West off 256 St. 1-Nov-16 0.43
<1 <2 12 <1 0.35 MPR-438 125 Ave. West off 256 St. 8-Nov-16 0.3 <1 <2 11 <1 0.32 MPR-438 125 Ave. West off 256 St. 15-Nov-16 0.27 <1 <2 11 <1 0.37 MPR-438 125 Ave. West off 256 St.
22-Nov-16 0.17 <1 2 12 <1 0.36 MPR-438 125 Ave. West off 256 St. 29-Nov-16 0.31 <1 <2 10 <1 0.35 MPR-438 125 Ave. West off 256 St. 6-Dec-16 0.55 <1 <2 10 <1 0.36 MPR-438 125 Ave. West
off 256 St. 13-Dec-16 0.64 <1 4 7 <1 0.26 MPR-438 125 Ave. West off 256 St. 20-Dec-16 1.01 <1 <2 6 <1 0.35 MPR-438 125 Ave. West off 256 St. 28-Dec-16 1.02 <1 NA 5 <1 0.24
City of Maple Ridge Drinking Water Quality Report 2016 53 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-439 130 Ave. @251A St. (W. of 256 St.) 5-Jan-16 0.91 <1 <2 5 <1 0.3 MPR-439 130 Ave. @251A St. (W. of 256 St.) 12-Jan-16 0.79 <1 <2 5 <1 0.33 MPR-439 130 Ave. @251A St. (W.
of 256 St.) 19-Jan-16 0.99 <1 <2 5 <1 0.29 MPR-439 130 Ave. @251A St. (W. of 256 St.) 26-Jan-16 0.85 <1 <2 6 <1 0.33 MPR-439 130 Ave. @251A St. (W. of 256 St.) 2-Feb-16 0.82 <1 <2 7
<1 0.27 MPR-439 130 Ave. @251A St. (W. of 256 St.) 9-Feb-16 1 <1 2 7 <1 0.4 MPR-439 130 Ave. @251A St. (W. of 256 St.) 16-Feb-16 0.92 <1 2 7 <1 0.53 MPR-439 130 Ave. @251A St. (W. of
256 St.) 23-Feb-16 0.76 <1 2 7 <1 0.33 MPR-439 130 Ave. @251A St. (W. of 256 St.) 1-Mar-16 0.57 <1 <2 7 <1 0.44 MPR-439 130 Ave. @251A St. (W. of 256 St.) 8-Mar-16 0.62 <1 <2 8 <1 0.37
MPR-439 130 Ave. @251A St. (W. of 256 St.) 15-Mar-16 0.68 <1 <2 8 <1 0.31 MPR-439 130 Ave. @251A St. (W. of 256 St.) 22-Mar-16 0.59 <1 <2 8 <1 0.33 MPR-439 130 Ave. @251A St. (W. of
256 St.) 29-Mar-16 0.9 <1 <2 9 <1 0.28 MPR-439 130 Ave. @251A St. (W. of 256 St.) 5-Apr-16 0.7 <1 <2 10 <1 0.28 MPR-439 130 Ave. @251A St. (W. of 256 St.) 12-Apr-16 0.43 <1 <2 11 <1
0.37 MPR-439 130 Ave. @251A St. (W. of 256 St.) 19-Apr-16 0.6 <1 <2 11 <1 0.28 MPR-439 130 Ave. @251A St. (W. of 256 St.) 26-Apr-16 0.49 <1 <2 12 <1 0.31 MPR-439 130 Ave. @251A St.
(W. of 256 St.) 5-May-16 0.51 <1 2 13 <1 0.27 MPR-439 130 Ave. @251A St. (W. of 256 St.) 10-May-16 0.36 <1 <2 14 <1 0.46 MPR-439 130 Ave. @251A St. (W. of 256 St.) 17-May-16 0.68 <1
<2 15 <1 0.53 MPR-439 130 Ave. @251A St. (W. of 256 St.) 24-May-16 0.72 <1 <2 15 <1 0.25 MPR-439 130 Ave. @251A St. (W. of 256 St.) 31-May-16 0.82 <1 <2 15 <1 0.41 MPR-439 130 Ave.
@251A St. (W. of 256 St.) 7-Jun-16 0.38 <1 <2 17 <1 0.4 MPR-439 130 Ave. @251A St. (W. of 256 St.) 14-Jun-16 0.37 <1 <2 17 <1 0.23 MPR-439 130 Ave. @251A St. (W. of 256 St.) 21-Jun-16
0.42 <1 <2 16 <1 0.25 MPR-439 130 Ave. @251A St. (W. of 256 St.) 28-Jun-16 0.52 <1 <2 17 <1 0.29 MPR-439 130 Ave. @251A St. (W. of 256 St.) 5-Jul-16 0.2 <1 2 18 <1 0.25 MPR-439 130
Ave. @251A St. (W. of 256 St.) 12-Jul-16 0.4 <1 <2 18 <1 0.2 MPR-439 130 Ave. @251A St. (W. of 256 St.) 19-Jul-16 0.21 <1 <2 18 <1 0.19 MPR-439 130 Ave. @251A St. (W. of 256 St.) 26-Jul-16
0.38 <1 <2 19 <1 0.23 MPR-439 130 Ave. @251A St. (W. of 256 St.) 2-Aug-16 0.41 <1 <2 20 <1 0.21 MPR-439 130 Ave. @251A St. (W. of 256 St.) 9-Aug-16 0.25 <1 <2 19 <1 0.37 MPR-439 130
Ave. @251A St. (W. of 256 St.) 16-Aug-16 0.27 <1 <2 20 <1 0.29 MPR-439 130 Ave. @251A St. (W. of 256 St.) 23-Aug-16 0.26 <1 <2 20 <1 0.2 MPR-439 130 Ave. @251A St. (W. of 256 St.) 30-Aug-16
0.22 <1 2 19 <1 0.2 MPR-439 130 Ave. @251A St. (W. of 256 St.) 6-Sep-16 0.46 <1 <2 18 <1 0.19 MPR-439 130 Ave. @251A St. (W. of 256 St.) 13-Sep-16 0.27 <1 <2 17 <1 0.22 MPR-439 130
Ave. @251A St. (W. of 256 St.) 20-Sep-16 0.2 <1 2 16 <1 0.21 MPR-439 130 Ave. @251A St. (W. of 256 St.) 27-Sep-16 0.31 <1 <2 16 <1 0.25
City of Maple Ridge Drinking Water Quality Report 2016 54 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-439 130 Ave. @251A St. (W. of 256 St.) 4-Oct-16 0.02 <1 <2 14 <1 0.23 MPR-439 130 Ave. @251A St. (W. of 256 St.) 11-Oct-16 0.12 <1 <2 14 <1 0.19 MPR-439 130 Ave. @251A St. (W.
of 256 St.) 18-Oct-16 0.13 <1 <2 13 <1 0.21 MPR-439 130 Ave. @251A St. (W. of 256 St.) 25-Oct-16 0.11 <1 <2 13 <1 0.34 MPR-439 130 Ave. @251A St. (W. of 256 St.) 1-Nov-16 0.09 <1 <2
12 <1 0.34 MPR-439 130 Ave. @251A St. (W. of 256 St.) 8-Nov-16 0 <1 <2 12 <1 0.35 MPR-439 130 Ave. @251A St. (W. of 256 St.) 15-Nov-16 0.07 <1 <2 12 <1 0.3 MPR-439 130 Ave. @251A St.
(W. of 256 St.) 22-Nov-16 0.09 <1 <2 12 <1 0.33 MPR-439 130 Ave. @251A St. (W. of 256 St.) 29-Nov-16 0.2 <1 <2 10 <1 0.4 MPR-439 130 Ave. @251A St. (W. of 256 St.) 6-Dec-16 0.03 <1
<2 10 <1 0.3 MPR-439 130 Ave. @251A St. (W. of 256 St.) 13-Dec-16 0.28 <1 <2 7 <1 0.29 MPR-439 130 Ave. @251A St. (W. of 256 St.) 20-Dec-16 0.23 <1 <2 6 <1 0.34 MPR-439 130 Ave. @251A
St. (W. of 256 St.) 28-Dec-16 0.56 <1 NA 5 <1 0.34 MPR-440 232 St. @117 Ave. 5-Jan-16 1.1 <1 <2 6 <1 0.34 MPR-440 232 St. @117 Ave. 12-Jan-16 0.87 <1 <2 6 <1 0.36 MPR-440 232 St. @117
Ave. 19-Jan-16 1 <1 <2 6 <1 0.34 MPR-440 232 St. @117 Ave. 26-Jan-16 0.74 <1 2 6 <1 0.43 MPR-440 232 St. @117 Ave. 2-Feb-16 1.2 <1 <2 6 <1 0.4 MPR-440 232 St. @117 Ave. 9-Feb-16 1.1
<1 <2 6 <1 0.49 MPR-440 232 St. @117 Ave. 16-Feb-16 1.1 <1 <2 6 <1 0.5 MPR-440 232 St. @117 Ave. 23-Feb-16 0.83 <1 <2 6 <1 0.37 MPR-440 232 St. @117 Ave. 1-Mar-16 0.92 <1 <2 7 <1 0.34
MPR-440 232 St. @117 Ave. 8-Mar-16 1.2 <1 <2 7 <1 0.37 MPR-440 232 St. @117 Ave. 15-Mar-16 1 <1 <2 7 <1 0.38 MPR-440 232 St. @117 Ave. 22-Mar-16 0.94 <1 <2 8 <1 0.3 MPR-440 232 St.
@117 Ave. 29-Mar-16 0.83 <1 <2 6 <1 0.29 MPR-440 232 St. @117 Ave. 5-Apr-16 0.8 <1 <2 9 <1 0.31 MPR-440 232 St. @117 Ave. 12-Apr-16 0.88 <1 <2 9 <1 0.29 MPR-440 232 St. @117 Ave. 19-Apr-16
0.85 <1 <2 9 <1 0.98 MPR-440 232 St. @117 Ave. 26-Apr-16 0.81 <1 <2 9 <1 0.35 MPR-440 232 St. @117 Ave. 4-May-16 0.73 <1 2 11 <1 0.31 MPR-440 232 St. @117 Ave. 10-May-16 0.75 <1 <2
11 <1 0.31 MPR-440 232 St. @117 Ave. 17-May-16 0.57 <1 <2 12 <1 0.26 MPR-440 232 St. @117 Ave. 24-May-16 0.81 <1 <2 12 <1 0.22 MPR-440 232 St. @117 Ave. 31-May-16 0.86 <1 2 12 <1 0.44
MPR-440 232 St. @117 Ave. 7-Jun-16 0.77 <1 <2 13 <1 0.32 MPR-440 232 St. @117 Ave. 14-Jun-16 0.83 <1 <2 12 <1 0.25 MPR-440 232 St. @117 Ave. 21-Jun-16 0.9 <1 <2 13 <1 0.28 MPR-440 232
St. @117 Ave. 28-Jun-16 1.08 <1 <2 14 <1 0.39
City of Maple Ridge Drinking Water Quality Report 2016 55 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-440 232 St. @117 Ave. 5-Jul-16 0.86 <1 <2 14 <1 0.24 MPR-440 232 St. @117 Ave. 12-Jul-16 0.96 <1 2 14 <1 0.23 MPR-440 232 St. @117 Ave. 19-Jul-16 0.61 <1 <2 13 <1 0.38 MPR-440
232 St. @117 Ave. 26-Jul-16 1.08 <1 <2 15 <1 0.27 MPR-440 232 St. @117 Ave. 2-Aug-16 0.96 <1 8 16 <1 0.25 MPR-440 232 St. @117 Ave. 9-Aug-16 0.91 <1 <2 16 <1 0.45 MPR-440 232 St. @117
Ave. 16-Aug-16 0.94 <1 <2 17 <1 0.42 MPR-440 232 St. @117 Ave. 23-Aug-16 0.82 <1 2 17 <1 0.27 MPR-440 232 St. @117 Ave. 30-Aug-16 0.95 <1 <2 17 <1 0.39 MPR-440 232 St. @117 Ave. 6-Sep-16
0.68 <1 <2 16 <1 0.24 MPR-440 232 St. @117 Ave. 13-Sep-16 0.82 <1 2 16 <1 0.31 MPR-440 232 St. @117 Ave. 20-Sep-16 0.83 <1 <2 16 <1 0.26 MPR-440 232 St. @117 Ave. 27-Sep-16 0.97 <1
2 15 <1 0.32 MPR-440 232 St. @117 Ave. 4-Oct-16 0.89 <1 2 15 <1 0.25 MPR-440 232 St. @117 Ave. 11-Oct-16 0.82 <1 <2 13 <1 0.25 MPR-440 232 St. @117 Ave. 18-Oct-16 0.75 <1 <2 12 <1 0.44
MPR-440 232 St. @117 Ave. 25-Oct-16 0.92 <1 <2 11 <1 0.42 MPR-440 232 St. @117 Ave. 1-Nov-16 0.85 <1 <2 11 <1 0.48 MPR-440 232 St. @117 Ave. 8-Nov-16 0.86 <1 <2 11 <1 0.31 MPR-440 232
St. @117 Ave. 15-Nov-16 0.72 <1 <2 10 <1 0.38 MPR-440 232 St. @117 Ave. 22-Nov-16 0.76 <1 <2 11 <1 0.4 MPR-440 232 St. @117 Ave. 29-Nov-16 0.58 <1 <2 9 <1 0.39 MPR-440 232 St. @117
Ave. 6-Dec-16 0.82 <1 <2 8 <1 1.1 MPR-440 232 St. @117 Ave. 13-Dec-16 0.95 <1 <2 6 <1 0.31 MPR-440 232 St. @117 Ave. 20-Dec-16 0.81 <1 <2 7 <1 0.32 MPR-440 232 St. @117 Ave. 28-Dec-16
0.91 <1 NA 6 <1 0.25 MPR-441 132 Ave. @Cedar Way 5-Jan-16 0.27 <1 <2 6 <1 0.28 MPR-441 132 Ave. @Cedar Way 12-Jan-16 0.15 <1 <2 5 <1 0.25 MPR-441 132 Ave. @Cedar Way 19-Jan-16 0.28
<1 <2 5 <1 0.26 MPR-441 132 Ave. @Cedar Way 26-Jan-16 0.08 <1 2 7 <1 0.28 MPR-441 132 Ave. @Cedar Way 2-Feb-16 0.12 <1 <2 7 <1 0.36 MPR-441 132 Ave. @Cedar Way 9-Feb-16 0.07 <1 <2 6
<1 0.37 MPR-441 132 Ave. @Cedar Way 16-Feb-16 0.22 <1 <2 7 <1 0.39 MPR-441 132 Ave. @Cedar Way 23-Feb-16 0.09 <1 6 7 <1 0.3 MPR-441 132 Ave. @Cedar Way 1-Mar-16 0.16 <1 <2 8 <1 0.29
MPR-441 132 Ave. @Cedar Way 8-Mar-16 0.22 <1 <2 9 <1 0.33 MPR-441 132 Ave. @Cedar Way 15-Mar-16 0.08 <1 <2 8 <1 0.33 MPR-441 132 Ave. @Cedar Way 22-Mar-16 0.19 <1 <2 9 <1 0.28 MPR-441
132 Ave. @Cedar Way 29-Mar-16 0.21 <1 <2 9 <1 0.25
City of Maple Ridge Drinking Water Quality Report 2016 56 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-441 132 Ave. @Cedar Way 5-Apr-16 0.17 <1 <2 11 <1 0.38 MPR-441 132 Ave. @Cedar Way 12-Apr-16 0.1 <1 <2 12 <1 0.29 MPR-441 132 Ave. @Cedar Way 19-Apr-16 0.06 <1 <2 11 <1 0.24
MPR-441 132 Ave. @Cedar Way 26-Apr-16 0 <1 2 12 <1 0.25 MPR-441 132 Ave. @Cedar Way 3-May-16 0.09 <1 <2 14 <1 0.31 MPR-441 132 Ave. @Cedar Way 10-May-16 0.02 <1 2 15 <1 0.29 MPR-441
132 Ave. @Cedar Way 17-May-16 0.08 <1 <2 14 <1 0.22 MPR-441 132 Ave. @Cedar Way 24-May-16 0.08 <1 <2 15 <1 0.21 MPR-441 132 Ave. @Cedar Way 31-May-16 0.08 <1 <2 14 <1 0.33 MPR-441 132
Ave. @Cedar Way 7-Jun-16 0.07 <1 <2 15 <1 0.34 MPR-441 132 Ave. @Cedar Way 14-Jun-16 0 <1 <2 16 <1 0.28 MPR-441 132 Ave. @Cedar Way 21-Jun-16 0 <1 <2 15 <1 0.27 MPR-441 132 Ave. @Cedar
Way 28-Jun-16 0.25 <1 <2 16 <1 0.37 MPR-441 132 Ave. @Cedar Way 5-Jul-16 0.03 <1 <2 18 <1 0.3 MPR-441 132 Ave. @Cedar Way 12-Jul-16 0.05 <1 <2 17 <1 0.2 MPR-441 132 Ave. @Cedar Way
19-Jul-16 0 <1 <2 18 <1 0.24 MPR-441 132 Ave. @Cedar Way 26-Jul-16 0.12 <1 2 18 <1 0.28 MPR-441 132 Ave. @Cedar Way 2-Aug-16 0.19 <1 <2 19 <1 0.22 MPR-441 132 Ave. @Cedar Way 9-Aug-16
0.11 <1 <2 18 <1 0.25 MPR-441 132 Ave. @Cedar Way 16-Aug-16 0.14 <1 2 19 <1 0.43 MPR-441 132 Ave. @Cedar Way 23-Aug-16 0.13 <1 <2 19 <1 0.41 MPR-441 132 Ave. @Cedar Way 30-Aug-16 0.16
<1 <2 19 <1 0.21 MPR-441 132 Ave. @Cedar Way 6-Sep-16 0 <1 2 18 <1 0.22 MPR-441 132 Ave. @Cedar Way 13-Sep-16 0.06 <1 2 17 <1 0.26 MPR-441 132 Ave. @Cedar Way 20-Sep-16 0.12 <1 <2 18
<1 0.24 MPR-441 132 Ave. @Cedar Way 27-Sep-16 0.08 <1 <2 17 <1 0.21 MPR-441 132 Ave. @Cedar Way 4-Oct-16 0.03 <1 <2 16 <1 0.2 MPR-441 132 Ave. @Cedar Way 11-Oct-16 0.01 <1 10 15 <1
0.19 MPR-441 132 Ave. @Cedar Way 18-Oct-16 0.18 <1 6 14 <1 0.31 MPR-441 132 Ave. @Cedar Way 25-Oct-16 0.09 <1 6 13 <1 0.31 MPR-441 132 Ave. @Cedar Way 1-Nov-16 0 <1 12 13 <1 0.35 MPR-441
132 Ave. @Cedar Way 8-Nov-16 0 <1 2 12 <1 0.35 MPR-441 132 Ave. @Cedar Way 15-Nov-16 0.01 <1 16 12 <1 0.33 MPR-441 132 Ave. @Cedar Way 22-Nov-16 0 <1 10 12 <1 0.33 MPR-441 132 Ave.
@Cedar Way 29-Nov-16 0.17 <1 10 11 <1 0.28 MPR-441 132 Ave. @Cedar Way 6-Dec-16 0 <1 36 9 <1 0.33 MPR-441 132 Ave. @Cedar Way 13-Dec-16 0.21 <1 <2 7 <1 0.24 MPR-441 132 Ave. @Cedar
Way 20-Dec-16 0.67 <1 <2 6 <1 0.27 MPR-441 132 Ave. @Cedar Way 28-Dec-16 0.55 <1 NA 5 <1 0.21
City of Maple Ridge Drinking Water Quality Report 2016 57 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-442 Princess St. @Ditton St. 5-Jan-16 0.37 <1 2 7 <1 0.28 MPR-442 Princess St. @Ditton St. 12-Jan-16 0.53 <1 <2 7 <1 0.45 MPR-442 Princess St. @Ditton St. 19-Jan-16 0.51 <1
<2 6 <1 0.36 MPR-442 Princess St. @Ditton St. 26-Jan-16 0.44 <1 6 7 <1 0.34 MPR-442 Princess St. @Ditton St. 2-Feb-16 0.73 <1 <2 7 <1 0.35 MPR-442 Princess St. @Ditton St. 9-Feb-16
0.77 <1 <2 7 <1 0.52 MPR-442 Princess St. @Ditton St. 16-Feb-16 0.62 <1 4 7 <1 0.43 MPR-442 Princess St. @Ditton St. 23-Feb-16 0.57 <1 <2 7 <1 0.32 MPR-442 Princess St. @Ditton St.
1-Mar-16 0.55 <1 2 8 <1 0.31 MPR-442 Princess St. @Ditton St. 8-Mar-16 0.74 <1 <2 8 <1 0.39 MPR-442 Princess St. @Ditton St. 15-Mar-16 0.58 <1 <2 8 <1 0.33 MPR-442 Princess St. @Ditton
St. 22-Mar-16 0.83 <1 <2 7 <1 0.3 MPR-442 Princess St. @Ditton St. 29-Mar-16 0.84 <1 <2 8 <1 0.25 MPR-442 Princess St. @Ditton St. 5-Apr-16 0.7 <1 <2 9 <1 0.32 MPR-442 Princess St.
@Ditton St. 12-Apr-16 0.66 <1 <2 10 <1 0.37 MPR-442 Princess St. @Ditton St. 19-Apr-16 0.73 <1 <2 10 <1 0.3 MPR-442 Princess St. @Ditton St. 26-Apr-16 0.63 <1 <2 11 <1 0.28 MPR-442
Princess St. @Ditton St. 3-May-16 0.72 <1 <2 11 <1 0.27 MPR-442 Princess St. @Ditton St. 10-May-16 0.6 <1 <2 12 <1 0.27 MPR-442 Princess St. @Ditton St. 17-May-16 0.58 <1 <2 13 <1 0.24
MPR-442 Princess St. @Ditton St. 24-May-16 0.59 <1 <2 13 <1 0.22 MPR-442 Princess St. @Ditton St. 31-May-16 0.58 <1 <2 13 <1 0.23 MPR-442 Princess St. @Ditton St. 7-Jun-16 0.67 <1 4
14 <1 0.28 MPR-442 Princess St. @Ditton St. 14-Jun-16 0.64 <1 <2 14 <1 0.28 MPR-442 Princess St. @Ditton St. 21-Jun-16 0.67 <1 <2 14 <1 0.59 MPR-442 Princess St. @Ditton St. 28-Jun-16
0.82 <1 <2 14 <1 0.46 MPR-442 Princess St. @Ditton St. 5-Jul-16 0.7 <1 <2 15 <1 0.23 MPR-442 Princess St. @Ditton St. 12-Jul-16 0.74 <1 <2 15 <1 0.2 MPR-442 Princess St. @Ditton St.
19-Jul-16 0.69 <1 <2 15 <1 0.23 MPR-442 Princess St. @Ditton St. 26-Jul-16 0.8 <1 <2 16 <1 0.23 MPR-442 Princess St. @Ditton St. 2-Aug-16 0.73 <1 <2 17 <1 0.27 MPR-442 Princess St.
@Ditton St. 9-Aug-16 0.64 <1 <2 18 <1 0.3 MPR-442 Princess St. @Ditton St. 16-Aug-16 0.72 <1 <2 18 <1 0.26 MPR-442 Princess St. @Ditton St. 23-Aug-16 0.67 <1 <2 18 <1 0.26 MPR-442 Princess
St. @Ditton St. 30-Aug-16 0.7 <1 <2 18 <1 0.25 MPR-442 Princess St. @Ditton St. 6-Sep-16 0.61 <1 <2 17 <1 0.24 MPR-442 Princess St. @Ditton St. 13-Sep-16 0.56 <1 <2 17 <1 0.24 MPR-442
Princess St. @Ditton St. 20-Sep-16 0.58 <1 <2 17 <1 0.28 MPR-442 Princess St. @Ditton St. 27-Sep-16 0.62 <1 <2 17 <1 0.27
City of Maple Ridge Drinking Water Quality Report 2016 58 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-442 Princess St. @Ditton St. 4-Oct-16 0.59 <1 <2 16 <1 0.26 MPR-442 Princess St. @Ditton St. 11-Oct-16 0.45 <1 2 14 <1 0.29 MPR-442 Princess St. @Ditton St. 18-Oct-16 0.57 <1
<2 13 <1 0.34 MPR-442 Princess St. @Ditton St. 25-Oct-16 0.59 <1 <2 13 <1 0.37 MPR-442 Princess St. @Ditton St. 1-Nov-16 0.46 <1 <2 12 <1 0.36 MPR-442 Princess St. @Ditton St. 8-Nov-16
0.52 <1 <2 12 <1 0.28 MPR-442 Princess St. @Ditton St. 15-Nov-16 0.46 <1 <2 11 <1 1.7 MPR-442 Princess St. @Ditton St. 22-Nov-16 0.46 <1 <2 11 <1 0.31 MPR-442 Princess St. @Ditton St.
29-Nov-16 0.45 <1 <2 1 <1 0.37 MPR-442 Princess St. @Ditton St. 6-Dec-16 0.38 <1 <2 10 <1 0.34 MPR-442 Princess St. @Ditton St. 13-Dec-16 0.63 <1 <2 7 <1 0.27 MPR-442 Princess St. @Ditton
St. 20-Dec-16 0.51 <1 <2 6 <1 0.4 MPR-442 Princess St. @Ditton St. 28-Dec-16 0.57 <1 NA 6 <1 0.22 MPR-443 216 St. @Donovan 5-Jan-16 0.62 <1 <2 6 <1 0.39 MPR-443 216 St. @Donovan 12-Jan-16
0.52 <1 <2 6 <1 0.32 MPR-443 216 St. @Donovan 19-Jan-16 0.59 <1 2 6 <1 0.33 MPR-443 216 St. @Donovan 26-Jan-16 0.69 <1 <2 7 <1 0.33 MPR-443 216 St. @Donovan 2-Feb-16 0.99 <1 4 6 <1
0.5 MPR-443 216 St. @Donovan 9-Feb-16 0.95 <1 <2 7 <1 0.47 MPR-443 216 St. @Donovan 16-Feb-16 0.59 <1 <2 7 <1 0.43 MPR-443 216 St. @Donovan 23-Feb-16 0.87 <1 <2 7 <1 0.33 MPR-443 216
St. @Donovan 1-Mar-16 0.82 <1 4 7 <1 0.29 MPR-443 216 St. @Donovan 8-Mar-16 1 <1 <2 7 <1 0.35 MPR-443 216 St. @Donovan 15-Mar-16 0.75 <1 <2 7 <1 0.31 MPR-443 216 St. @Donovan 22-Mar-16
0.82 <1 <2 8 <1 0.28 MPR-443 216 St. @Donovan 29-Mar-16 0.76 <1 <2 8 <1 0.25 MPR-443 216 St. @Donovan 5-Apr-16 0.88 <1 <2 9 <1 0.25 MPR-443 216 St. @Donovan 12-Apr-16 0.83 <1 <2 9 <1
0.31 MPR-443 216 St. @Donovan 19-Apr-16 0.78 <1 <2 10 <1 0.56 MPR-443 216 St. @Donovan 26-Apr-16 0.82 <1 <2 9 <1 0.26 MPR-443 216 St. @Donovan 4-May-16 0.83 <1 16 11 <1 0.4 MPR-443
216 St. @Donovan 10-May-16 0.78 <1 2 12 <1 0.29 MPR-443 216 St. @Donovan 17-May-16 0.87 <1 <2 11 <1 0.3 MPR-443 216 St. @Donovan 24-May-16 0.89 <1 <2 10 <1 0.29 MPR-443 216 St. @Donovan
31-May-16 0.75 <1 <2 12 <1 0.37 MPR-443 216 St. @Donovan 7-Jun-16 0.63 <1 <2 12 <1 0.34 MPR-443 216 St. @Donovan 14-Jun-16 0.75 <1 <2 14 <1 0.26 MPR-443 216 St. @Donovan 21-Jun-16 0.48
<1 <2 14 <1 0.26 MPR-443 216 St. @Donovan 28-Jun-16 1.05 <1 <2 13 <1 0.43
City of Maple Ridge Drinking Water Quality Report 2016 59 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-443 216 St. @Donovan 5-Jul-16 0.7 <1 2 16 <1 0.24 MPR-443 216 St. @Donovan 12-Jul-16 0.64 <1 <2 16 <1 0.2 MPR-443 216 St. @Donovan 19-Jul-16 0.42 <1 <2 16 <1 0.27 MPR-443 216
St. @Donovan 26-Jul-16 0.85 <1 <2 17 <1 0.26 MPR-443 216 St. @Donovan 2-Aug-16 0.83 <1 <2 17 <1 0.23 MPR-443 216 St. @Donovan 9-Aug-16 0.78 <1 <2 18 <1 0.37 MPR-443 216 St. @Donovan
16-Aug-16 0.98 <1 <2 17 <1 0.27 MPR-443 216 St. @Donovan 23-Aug-16 1.01 <1 <2 18 <1 0.29 MPR-443 216 St. @Donovan 30-Aug-16 0.88 <1 <2 18 <1 0.24 MPR-443 216 St. @Donovan 6-Sep-16 0.65
<1 4 17 <1 0.24 MPR-443 216 St. @Donovan 13-Sep-16 0.73 <1 <2 17 <1 0.24 MPR-443 216 St. @Donovan 20-Sep-16 0.68 <1 <2 17 <1 0.29 MPR-443 216 St. @Donovan 27-Sep-16 0.73 <1 <2 16 <1
0.2 MPR-443 216 St. @Donovan 4-Oct-16 0.75 <1 <2 15 <1 0.2 MPR-443 216 St. @Donovan 11-Oct-16 0.59 <1 <2 14 <1 0.21 MPR-443 216 St. @Donovan 18-Oct-16 0.82 <1 2 13 <1 0.38 MPR-443 216
St. @Donovan 25-Oct-16 0.88 <1 <2 12 <1 0.34 MPR-443 216 St. @Donovan 1-Nov-16 0.62 <1 <2 12 <1 0.37 MPR-443 216 St. @Donovan 8-Nov-16 0.64 <1 <2 11 <1 0.29 MPR-443 216 St. @Donovan
15-Nov-16 0.65 <1 <2 11 <1 0.36 MPR-443 216 St. @Donovan 22-Nov-16 0.59 <1 2 10 <1 0.32 MPR-443 216 St. @Donovan 29-Nov-16 0.65 <1 <2 9 <1 0.48 MPR-443 216 St. @Donovan 6-Dec-16 0.52
<1 <2 9 <1 0.41 MPR-443 216 St. @Donovan 13-Dec-16 0.85 <1 <2 6 <1 0.3 MPR-443 216 St. @Donovan 20-Dec-16 0.92 <1 2 6 <1 0.37 MPR-443 216 St. @Donovan 28-Dec-16 0.83 <1 NA 5 <1 0.22
MPR-444 Foreman Drive @232nd St. 5-Jan-16 0.44 <1 <2 6 <1 0.28 MPR-444 Foreman Drive @232nd St. 12-Jan-16 0.51 <1 <2 5 <1 0.3 MPR-444 Foreman Drive @232nd St. 19-Jan-16 0.61 <1 <2 6
<1 0.31 MPR-444 Foreman Drive @232nd St. 26-Jan-16 0.44 <1 <2 6 <1 0.36 MPR-444 Foreman Drive @232nd St. 2-Feb-16 0.72 <1 2 6 <1 0.43 MPR-444 Foreman Drive @232nd St. 9-Feb-16 0.86
<1 <2 6 <1 0.39 MPR-444 Foreman Drive @232nd St. 16-Feb-16 0.42 <1 <2 7 <1 0.36 MPR-444 Foreman Drive @232nd St. 23-Feb-16 0.48 <1 <2 7 <1 0.36 MPR-444 Foreman Drive @232nd St. 1-Mar-16
0.53 <1 <2 7 <1 0.29 MPR-444 Foreman Drive @232nd St. 8-Mar-16 0.73 <1 <2 8 <1 0.31 MPR-444 Foreman Drive @232nd St. 15-Mar-16 0.45 <1 <2 7 <1 0.32 MPR-444 Foreman Drive @232nd St.
22-Mar-16 0.53 <1 <2 8 <1 0.28 MPR-444 Foreman Drive @232nd St. 29-Mar-16 0.54 <1 <2 7 <1 0.3
City of Maple Ridge Drinking Water Quality Report 2016 60 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-444 Foreman Drive @232nd St. 5-Apr-16 0.48 <1 <2 9 <1 0.29 MPR-444 Foreman Drive @232nd St. 12-Apr-16 0.43 <1 <2 10 <1 0.32 MPR-444 Foreman Drive @232nd St. 19-Apr-16 0.54 <1
4 10 <1 0.3 MPR-444 Foreman Drive @232nd St. 26-Apr-16 0.51 <1 <2 11 <1 0.28 MPR-444 Foreman Drive @232nd St. 4-May-16 0.29 <1 <2 12 <1 0.25 MPR-444 Foreman Drive @232nd St. 10-May-16
0.37 <1 <2 12 <1 0.29 MPR-444 Foreman Drive @232nd St. 17-May-16 0.25 <1 <2 13 <1 0.25 MPR-444 Foreman Drive @232nd St. 24-May-16 0.51 <1 <2 13 <1 0.21 MPR-444 Foreman Drive @232nd
St. 31-May-16 0.4 <1 <2 13 <1 0.34 MPR-444 Foreman Drive @232nd St. 7-Jun-16 0.47 <1 6 14 <1 0.49 MPR-444 Foreman Drive @232nd St. 14-Jun-16 0.43 <1 <2 14 <1 0.23 MPR-444 Foreman Drive
@232nd St. 21-Jun-16 0.46 <1 <2 13 <1 0.28 MPR-444 Foreman Drive @232nd St. 28-Jun-16 0.58 <1 <2 14 <1 0.47 MPR-444 Foreman Drive @232nd St. 5-Jul-16 0.5 <1 <2 15 <1 0.24 MPR-444 Foreman
Drive @232nd St. 12-Jul-16 0.49 <1 2 15 <1 0.2 MPR-444 Foreman Drive @232nd St. 19-Jul-16 0.53 <1 <2 15 <1 0.37 MPR-444 Foreman Drive @232nd St. 26-Jul-16 0.5 <1 2 16 <1 0.24 MPR-444
Foreman Drive @232nd St. 2-Aug-16 0.63 <1 <2 17 <1 0.23 MPR-444 Foreman Drive @232nd St. 9-Aug-16 0.49 <1 <2 17 <1 0.32 MPR-444 Foreman Drive @232nd St. 16-Aug-16 0.52 <1 <2 18 <1 0.43
MPR-444 Foreman Drive @232nd St. 23-Aug-16 0.29 <1 <2 17 <1 0.33 MPR-444 Foreman Drive @232nd St. 30-Aug-16 0.42 <1 <2 18 <1 0.27 MPR-444 Foreman Drive @232nd St. 6-Sep-16 0.36 <1 <2
17 <1 0.23 MPR-444 Foreman Drive @232nd St. 13-Sep-16 0.34 <1 <2 16 <1 0.21 MPR-444 Foreman Drive @232nd St. 20-Sep-16 0.36 <1 <2 17 <1 0.23 MPR-444 Foreman Drive @232nd St. 27-Sep-16
0.35 <1 <2 16 <1 0.2 MPR-444 Foreman Drive @232nd St. 4-Oct-16 0.37 <1 <2 15 <1 0.27 MPR-444 Foreman Drive @232nd St. 11-Oct-16 0.17 <1 <2 14 <1 0.2 MPR-444 Foreman Drive @232nd St.
18-Oct-16 0.41 <1 <2 13 <1 0.22 MPR-444 Foreman Drive @232nd St. 25-Oct-16 0.32 <1 <2 12 <1 0.32 MPR-444 Foreman Drive @232nd St. 1-Nov-16 0.23 <1 <2 12 <1 0.35 MPR-444 Foreman Drive
@232nd St. 8-Nov-16 0.21 <1 <2 12 <1 0.32 MPR-444 Foreman Drive @232nd St. 15-Nov-16 0.26 <1 <2 11 <1 0.44 MPR-444 Foreman Drive @232nd St. 22-Nov-16 0.32 <1 <2 11 <1 0.31 MPR-444 Foreman
Drive @232nd St. 29-Nov-16 0.34 <1 <2 10 <1 0.31 MPR-444 Foreman Drive @232nd St. 6-Dec-16 0.03 <1 <2 9 <1 0.37 MPR-444 Foreman Drive @232nd St. 13-Dec-16 0.5 <1 <2 7 <1 0.26 MPR-444
Foreman Drive @232nd St. 20-Dec-16 0.34 <1 4 6 <1 0.35 MPR-444 Foreman Drive @232nd St. 28-Dec-16 0.32 <1 NA 5 <1 0.22
City of Maple Ridge Drinking Water Quality Report 2016 61 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-445 127th Ave. and 266 St. 5-Jan-16 0.64 <1 <2 7 <1 0.26 MPR-445 127th Ave. and 266 St. 12-Jan-16 0.9 <1 <2 6 <1 0.25 MPR-445 127th Ave. and 266 St. 19-Jan-16 0.59 <1 <2 6 <1
0.31 MPR-445 127th Ave. and 266 St. 26-Jan-16 0.86 <1 <2 7 <1 0.3 MPR-445 127th Ave. and 266 St. 2-Feb-16 0.71 <1 <2 7 <1 0.31 MPR-445 127th Ave. and 266 St. 9-Feb-16 1.1 <1 <2 7 <1
0.36 MPR-445 127th Ave. and 266 St. 16-Feb-16 0.89 <1 <2 7 <1 0.39 MPR-445 127th Ave. and 266 St. 23-Feb-16 0.58 <1 <2 7 <1 0.36 MPR-445 127th Ave. and 266 St. 1-Mar-16 0.58 <1 <2 8
<1 0.35 MPR-445 127th Ave. and 266 St. 8-Mar-16 0.66 <1 <2 8 <1 0.35 MPR-445 127th Ave. and 266 St. 15-Mar-16 0.51 <1 <2 8 <1 0.32 MPR-445 127th Ave. and 266 St. 22-Mar-16 0.57 <1 <2
8 <1 0.26 MPR-445 127th Ave. and 266 St. 29-Mar-16 0.83 <1 <2 8 <1 0.26 MPR-445 127th Ave. and 266 St. 5-Apr-16 0.73 <1 <2 10 <1 0.31 MPR-445 127th Ave. and 266 St. 12-Apr-16 0.72 <1
<2 11 <1 0.28 MPR-445 127th Ave. and 266 St. 19-Apr-16 0.78 <1 <2 11 <1 0.26 MPR-445 127th Ave. and 266 St. 26-Apr-16 0.05 <1 2 12 <1 0.24 MPR-445 127th Ave. and 266 St. 3-May-16 0.76
<1 <2 12 <1 0.29 MPR-445 127th Ave. and 266 St. 10-May-16 0.71 <1 <2 14 <1 0.32 MPR-445 127th Ave. and 266 St. 17-May-16 0.36 <1 2 14 <1 0.25 MPR-445 127th Ave. and 266 St. 24-May-16
0.27 <1 <2 14 <1 0.21 MPR-445 127th Ave. and 266 St. 31-May-16 0.6 <1 <2 15 <1 0.39 MPR-445 127th Ave. and 266 St. 7-Jun-16 0.62 <1 4 15 <1 0.29 MPR-445 127th Ave. and 266 St. 14-Jun-16
0.33 <1 <2 16 <1 0.26 MPR-445 127th Ave. and 266 St. 21-Jun-16 0.72 <1 Cont. 15 <1 0.24 MPR-445 127th Ave. and 266 St. 28-Jun-16 0.94 <1 <2 17 <1 0.3 MPR-445 127th Ave. and 266 St.
5-Jul-16 0.32 <1 <2 17 <1 0.27 MPR-445 127th Ave. and 266 St. 12-Jul-16 0.64 <1 <2 17 <1 0.21 MPR-445 127th Ave. and 266 St. 19-Jul-16 0.21 <1 <2 17 <1 0.23 MPR-445 127th Ave. and 266
St. 26-Jul-16 0.78 <1 <2 17 <1 0.26 MPR-445 127th Ave. and 266 St. 2-Aug-16 0.64 <1 <2 18 <1 0.2 MPR-445 127th Ave. and 266 St. 9-Aug-16 0.69 <1 <2 19 <1 0.2 MPR-445 127th Ave. and
266 St. 16-Aug-16 0.68 <1 <2 18 <1 0.26 MPR-445 127th Ave. and 266 St. 23-Aug-16 0.81 <1 <2 19 <1 0.23 MPR-445 127th Ave. and 266 St. 30-Aug-16 0.62 <1 <2 19 <1 0.28 MPR-445 127th Ave.
and 266 St. 6-Sep-16 0.23 <1 2 18 <1 0.21 MPR-445 127th Ave. and 266 St. 13-Sep-16 0.7 <1 <2 18 <1 0.24 MPR-445 127th Ave. and 266 St. 20-Sep-16 0.39 <1 <2 17 <1 0.28 MPR-445 127th
Ave. and 266 St. 27-Sep-16 0.47 <1 <2 17 <1 0.22
City of Maple Ridge Drinking Water Quality Report 2016 62 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-445 127th Ave. and 266 St. 4-Oct-16 0.35 <1 <2 16 <1 0.28 MPR-445 127th Ave. and 266 St. 11-Oct-16 0.13 <1 <2 15 <1 0.19 MPR-445 127th Ave. and 266 St. 18-Oct-16 0.22 <1 <2
14 <1 0.24 MPR-445 127th Ave. and 266 St. 25-Oct-16 0.09 <1 6 13 <1 0.34 MPR-445 127th Ave. and 266 St. 1-Nov-16 0.17 <1 <2 13 <1 0.3 MPR-445 127th Ave. and 266 St. 8-Nov-16 0.02 <1
<2 12 <1 0.34 MPR-445 127th Ave. and 266 St. 15-Nov-16 0.32 <1 2 12 <1 0.33 MPR-445 127th Ave. and 266 St. 22-Nov-16 0.03 <1 2 10 <1 0.29 MPR-445 127th Ave. and 266 St. 29-Nov-16 0.2
<1 2 10 <1 0.35 MPR-445 127th Ave. and 266 St. 6-Dec-16 0.03 <1 <2 10 <1 0.41 MPR-445 127th Ave. and 266 St. 13-Dec-16 0.62 <1 8 8 <1 0.25 MPR-445 127th Ave. and 266 St. 20-Dec-16 0.91
<1 2 7 <1 0.33 MPR-445 127th Ave. and 266 St. 28-Dec-16 1.07 <1 NA 6 <1 0.24 MPR-446 128th Ave and Willow Place 5-Jan-16 1 <1 <2 6 <1 0.35 MPR-446 128th Ave and Willow Place 12-Jan-16
1 <1 <2 5 <1 0.51 MPR-446 128th Ave and Willow Place 19-Jan-16 1.2 <1 <2 6 <1 0.4 MPR-446 128th Ave and Willow Place 26-Jan-16 0.97 <1 <2 6 <1 0.52 MPR-446 128th Ave and Willow Place
2-Feb-16 1.7 <1 <2 6 <1 0.32 MPR-446 128th Ave and Willow Place 9-Feb-16 1.2 <1 <2 7 <1 0.42 MPR-446 128th Ave and Willow Place 16-Feb-16 0.93 <1 <2 7 <1 0.42 MPR-446 128th Ave and
Willow Place 23-Feb-16 0.78 <1 <2 7 <1 0.38 MPR-446 128th Ave and Willow Place 1-Mar-16 0.79 <1 <2 8 <1 0.54 MPR-446 128th Ave and Willow Place 8-Mar-16 0.6 <1 <2 8 <1 0.48 MPR-446
128th Ave and Willow Place 15-Mar-16 0.64 <1 <2 8 <1 0.35 MPR-446 128th Ave and Willow Place 22-Mar-16 0.57 <1 <2 7 <1 0.38 MPR-446 128th Ave and Willow Place 29-Mar-16 0.91 <1 <2 8
<1 0.38 MPR-446 128th Ave and Willow Place 5-Apr-16 0.51 <1 <2 9 <1 0.28 MPR-446 128th Ave and Willow Place 12-Apr-16 0.48 <1 <2 9 <1 0.45 MPR-446 128th Ave and Willow Place 19-Apr-16
0.89 <1 <2 10 <1 0.35 MPR-446 128th Ave and Willow Place 26-Apr-16 0.61 <1 <2 11 <1 0.29 MPR-446 128th Ave and Willow Place 3-May-16 0.61 <1 <2 11 <1 0.29 MPR-446 128th Ave and Willow
Place 10-May-16 0.68 <1 <2 12 <1 1.2 MPR-446 128th Ave and Willow Place 17-May-16 0.44 <1 <2 13 <1 0.29 MPR-446 128th Ave and Willow Place 24-May-16 0.37 <1 <2 12 <1 0.25 MPR-446 128th
Ave and Willow Place 31-May-16 0.37 <1 <2 12 <1 0.35 MPR-446 128th Ave and Willow Place 7-Jun-16 0.63 <1 <2 15 <1 0.44 MPR-446 128th Ave and Willow Place 14-Jun-16 0.19 <1 <2 13 <1
0.33 MPR-446 128th Ave and Willow Place 21-Jun-16 0.8 <1 <2 13 <1 0.28 MPR-446 128th Ave and Willow Place 28-Jun-16 0.16 <1 <2 15 <1 0.42
City of Maple Ridge Drinking Water Quality Report 2016 63 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-446 128th Ave and Willow Place 5-Jul-16 0.05 <1 <2 15 <1 0.32 MPR-446 128th Ave and Willow Place 12-Jul-16 0.07 <1 18 15 <1 0.29 MPR-446 128th Ave and Willow Place 19-Jul-16
0.02 <1 <2 15 <1 0.27 MPR-446 128th Ave and Willow Place 26-Jul-16 1.18 <1 <2 16 <1 0.23 MPR-446 128th Ave and Willow Place 2-Aug-16 0.32 <1 <2 16 <1 0.27 MPR-446 128th Ave and Willow
Place 9-Aug-16 0.14 <1 <2 16 <1 0.39 MPR-446 128th Ave and Willow Place 16-Aug-16 1.05 <1 <2 17 <1 0.31 MPR-446 128th Ave and Willow Place 23-Aug-16 0.83 <1 2 17 <1 0.38 MPR-446 128th
Ave and Willow Place 30-Aug-16 0.51 <1 <2 18 <1 0.25 MPR-446 128th Ave and Willow Place 6-Sep-16 0.56 <1 <2 16 <1 0.22 MPR-446 128th Ave and Willow Place 13-Sep-16 0.28 <1 <2 15 <1
0.27 MPR-446 128th Ave and Willow Place 20-Sep-16 0.81 <1 <2 16 <1 0.29 MPR-446 128th Ave and Willow Place 27-Sep-16 0.29 <1 <2 15 <1 0.33 MPR-446 128th Ave and Willow Place 4-Oct-16
0.38 <1 <2 14 <1 0.29 MPR-446 128th Ave and Willow Place 11-Oct-16 0.36 <1 <2 13 <1 0.24 MPR-446 128th Ave and Willow Place 18-Oct-16 0.29 <1 <2 12 <1 0.25 MPR-446 128th Ave and Willow
Place 25-Oct-16 0.48 <1 <2 12 <1 0.38 MPR-446 128th Ave and Willow Place 1-Nov-16 0.22 <1 <2 11 <1 0.66 MPR-446 128th Ave and Willow Place 8-Nov-16 0.11 <1 <2 11 <1 0.37 MPR-446 128th
Ave and Willow Place 15-Nov-16 0.62 <1 <2 11 <1 0.38 MPR-446 128th Ave and Willow Place 22-Nov-16 0.2 <1 4 10 <1 0.45 MPR-446 128th Ave and Willow Place 29-Nov-16 0.66 <1 <2 9 <1 0.39
MPR-446 128th Ave and Willow Place 6-Dec-16 0.26 <1 <2 9 <1 0.39 MPR-446 128th Ave and Willow Place 13-Dec-16 0.49 <1 <2 7 <1 0.78 MPR-446 128th Ave and Willow Place 20-Dec-16 0.74
<1 <2 6 <1 0.4 MPR-446 128th Ave and Willow Place 28-Dec-16 0.98 <1 NA 6 <1 0.29 MPR-447 117 Ave. @210 St. 5-Jan-16 0.34 <1 <2 6 <1 0.31 MPR-447 117 Ave. @210 St. 12-Jan-16 0.51 <1
<2 6 <1 0.29 MPR-447 117 Ave. @210 St. 19-Jan-16 0.58 <1 <2 6 <1 0.28 MPR-447 117 Ave. @210 St. 26-Jan-16 0.54 <1 <2 7 <1 0.31 MPR-447 117 Ave. @210 St. 2-Feb-16 0.96 <1 2 7 <1 0.39
MPR-447 117 Ave. @210 St. 9-Feb-16 0.91 <1 <2 7 <1 0.47 MPR-447 117 Ave. @210 St. 16-Feb-16 0.72 <1 <2 7 <1 0.47 MPR-447 117 Ave. @210 St. 23-Feb-16 0.72 <1 <2 7 <1 0.48 MPR-447 117
Ave. @210 St. 1-Mar-16 0.66 <1 <2 8 <1 0.31 MPR-447 117 Ave. @210 St. 8-Mar-16 1 <1 <2 8 <1 0.33 MPR-447 117 Ave. @210 St. 15-Mar-16 0.77 <1 16 8 <1 0.77 MPR-447 117 Ave. @210 St. 22-Mar-16
0.83 <1 <2 8 <1 0.28 MPR-447 117 Ave. @210 St. 29-Mar-16 0.84 <1 <2 8 <1 0.31
City of Maple Ridge Drinking Water Quality Report 2016 64 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-447 117 Ave. @210 St. 5-Apr-16 0.71 <1 <2 10 <1 0.28 MPR-447 117 Ave. @210 St. 12-Apr-16 0.76 <1 <2 10 <1 0.47 MPR-447 117 Ave. @210 St. 19-Apr-16 0.79 <1 <2 10 <1 0.5 MPR-447
117 Ave. @210 St. 26-Apr-16 0.68 <1 <2 10 <1 0.3 MPR-447 117 Ave. @210 St. 3-May-16 0.66 <1 <2 12 <1 0.26 MPR-447 117 Ave. @210 St. 10-May-16 0.56 <1 <2 13 <1 0.3 MPR-447 117 Ave. @210
St. 17-May-16 0.46 <1 <2 13 <1 0.26 MPR-447 117 Ave. @210 St. 24-May-16 0.69 <1 6 14 <1 0.28 MPR-447 117 Ave. @210 St. 31-May-16 0.8 <1 <2 13 <1 0.31 MPR-447 117 Ave. @210 St. 7-Jun-16
0.63 <1 <2 15 <1 0.34 MPR-447 117 Ave. @210 St. 14-Jun-16 0.7 <1 <2 15 <1 0.22 MPR-447 117 Ave. @210 St. 21-Jun-16 0.74 <1 <2 14 <1 0.23 MPR-447 117 Ave. @210 St. 28-Jun-16 0.83 <1
<2 15 <1 0.29 MPR-447 117 Ave. @210 St. 5-Jul-16 0.76 <1 2 16 <1 0.24 MPR-447 117 Ave. @210 St. 12-Jul-16 0.85 <1 <2 16 <1 0.2 MPR-447 117 Ave. @210 St. 19-Jul-16 0.67 <1 2 16 <1 0.51
MPR-447 117 Ave. @210 St. 26-Jul-16 0.8 <1 <2 18 <1 0.24 MPR-447 117 Ave. @210 St. 2-Aug-16 0.82 <1 <2 17 <1 0.24 MPR-447 117 Ave. @210 St. 9-Aug-16 0.7 <1 2 18 <1 0.31 MPR-447 117
Ave. @210 St. 16-Aug-16 0.93 <1 2 18 <1 0.5 MPR-447 117 Ave. @210 St. 23-Aug-16 0.88 <1 2 19 <1 0.28 MPR-447 117 Ave. @210 St. 30-Aug-16 0.92 <1 <2 19 <1 0.21 MPR-447 117 Ave. @210
St. 6-Sep-16 0.83 <1 <2 17 <1 0.26 MPR-447 117 Ave. @210 St. 13-Sep-16 0.81 <1 2 17 <1 0.27 MPR-447 117 Ave. @210 St. 20-Sep-16 0.68 <1 2 17 <1 0.27 MPR-447 117 Ave. @210 St. 27-Sep-16
0.86 <1 2 17 <1 0.16 MPR-447 117 Ave. @210 St. 4-Oct-16 0.76 <1 <2 15 <1 0.17 MPR-447 117 Ave. @210 St. 11-Oct-16 0.44 <1 <2 15 <1 0.17 MPR-447 117 Ave. @210 St. 18-Oct-16 0.67 <1 <2
13 <1 0.34 MPR-447 117 Ave. @210 St. 25-Oct-16 0.73 <1 <2 13 <1 0.31 MPR-447 117 Ave. @210 St. 1-Nov-16 0.57 <1 <2 12 <1 0.34 MPR-447 117 Ave. @210 St. 8-Nov-16 0.45 <1 <2 12 <1 0.29
MPR-447 117 Ave. @210 St. 15-Nov-16 0.66 <1 <2 11 <1 0.6 MPR-447 117 Ave. @210 St. 22-Nov-16 0.68 <1 <2 11 <1 0.33 MPR-447 117 Ave. @210 St. 29-Nov-16 0.52 <1 2 10 <1 0.32 MPR-447 117
Ave. @210 St. 6-Dec-16 0.13 <1 <2 11 <1 0.47 MPR-447 117 Ave. @210 St. 13-Dec-16 0.75 <1 <2 7 <1 0.34 MPR-447 117 Ave. @210 St. 20-Dec-16 0.82 <1 <2 6 <1 0.47 MPR-447 117 Ave. @210
St. 28-Dec-16 0.72 <1 NA 6 <1 0.23
City of Maple Ridge Drinking Water Quality Report 2016 65 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-448 248th St. & McClure 5-Jan-16 0.56 <1 <2 6 <1 0.28 MPR-448 248th St. & McClure 12-Jan-16 0.79 <1 <2 6 <1 0.31 MPR-448 248th St. & McClure 19-Jan-16 0.93 <1 2 6 <1 0.35 MPR-448
248th St. & McClure 26-Jan-16 0.55 <1 <2 7 <1 0.33 MPR-448 248th St. & McClure 2-Feb-16 0.75 <1 <2 7 <1 0.32 MPR-448 248th St. & McClure 9-Feb-16 1.4 <1 <2 7 <1 0.5 MPR-448 248th St.
& McClure 16-Feb-16 0.85 <1 <2 7 <1 0.42 MPR-448 248th St. & McClure 23-Feb-16 0.42 <1 <2 7 <1 0.4 MPR-448 248th St. & McClure 1-Mar-16 0.55 <1 <2 8 <1 0.43 MPR-448 248th St. & McClure
8-Mar-16 0.72 <1 <2 8 <1 0.4 MPR-448 248th St. & McClure 15-Mar-16 0.55 <1 <2 8 <1 0.28 MPR-448 248th St. & McClure 22-Mar-16 0.85 <1 <2 8 <1 0.3 MPR-448 248th St. & McClure 29-Mar-16
0.65 <1 <2 8 <1 0.32 MPR-448 248th St. & McClure 5-Apr-16 0.85 <1 <2 10 <1 0.35 MPR-448 248th St. & McClure 12-Apr-16 0.54 <1 <2 10 <1 0.46 MPR-448 248th St. & McClure 19-Apr-16 0.65
<1 <2 11 <1 0.26 MPR-448 248th St. & McClure 26-Apr-16 0.55 <1 <2 11 <1 0.27 MPR-448 248th St. & McClure 3-May-16 0.56 <1 <2 12 <1 0.23 MPR-448 248th St. & McClure 10-May-16 0.49 <1
<2 14 <1 0.33 MPR-448 248th St. & McClure 17-May-16 0.46 <1 <2 14 <1 0.3 MPR-448 248th St. & McClure 24-May-16 0.74 <1 <2 14 <1 0.25 MPR-448 248th St. & McClure 31-May-16 0.58 <1 <2
14 <1 0.3 MPR-448 248th St. & McClure 7-Jun-16 0.43 <1 2 15 <1 0.39 MPR-448 248th St. & McClure 14-Jun-16 0.52 <1 <2 15 <1 0.3 MPR-448 248th St. & McClure 21-Jun-16 0.45 <1 <2 14 <1
0.37 MPR-448 248th St. & McClure 28-Jun-16 0.74 <1 <2 16 <1 0.38 MPR-448 248th St. & McClure 5-Jul-16 0.95 <1 2 16 <1 0.48 MPR-448 248th St. & McClure 12-Jul-16 0.88 <1 <2 16 <1 0.2
MPR-448 248th St. & McClure 19-Jul-16 0.63 <1 <2 16 <1 0.31 MPR-448 248th St. & McClure 26-Jul-16 0.62 <1 <2 17 <1 0.24 MPR-448 248th St. & McClure 2-Aug-16 0.54 <1 <2 18 <1 0.26 MPR-448
248th St. & McClure 9-Aug-16 0.74 <1 <2 18 <1 0.34 MPR-448 248th St. & McClure 16-Aug-16 0.53 <1 2 19 <1 0.23 MPR-448 248th St. & McClure 23-Aug-16 0.5 <1 2 19 <1 0.37 MPR-448 248th
St. & McClure 30-Aug-16 0.34 <1 2 19 <1 0.3 MPR-448 248th St. & McClure 6-Sep-16 0.52 <1 <2 18 <1 0.2 MPR-448 248th St. & McClure 13-Sep-16 0.51 <1 <2 17 <1 0.24 MPR-448 248th St. &
McClure 20-Sep-16 0.48 <1 <2 17 <1 0.24 MPR-448 248th St. & McClure 27-Sep-16 0.48 <1 <2 17 <1 0.19
City of Maple Ridge Drinking Water Quality Report 2016 66 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-448 248th St. & McClure 4-Oct-16 0.54 <1 <2 16 <1 0.31 MPR-448 248th St. & McClure 11-Oct-16 0.4 <1 <2 15 <1 0.22 MPR-448 248th St. & McClure 18-Oct-16 0.49 <1 <2 14 <1 0.2
MPR-448 248th St. & McClure 25-Oct-16 0.82 <1 2 13 <1 0.4 MPR-448 248th St. & McClure 1-Nov-16 0.34 <1 <2 12 <1 0.47 MPR-448 248th St. & McClure 8-Nov-16 0.48 <1 <2 12 <1 0.35 MPR-448
248th St. & McClure 15-Nov-16 0.33 <1 <2 12 <1 0.36 MPR-448 248th St. & McClure 22-Nov-16 0.64 <1 <2 12 <1 0.36 MPR-448 248th St. & McClure 29-Nov-16 0.38 <1 <2 10 <1 0.31 MPR-448 248th
St. & McClure 6-Dec-16 0.29 <1 <2 9 <1 0.47 MPR-448 248th St. & McClure 13-Dec-16 0.45 <1 <2 7 <1 0.32 MPR-448 248th St. & McClure 20-Dec-16 0.49 <1 <2 6 <1 0.35 MPR-448 248th St. &
McClure 28-Dec-16 0.35 <1 NA 5 <1 0.23 MPR-449 Meadow Brook North of Douglas 5-Jan-16 0.07 <1 8 8 <1 0.27 MPR-449 Meadow Brook North of Douglas 12-Jan-16 0.06 <1 <2 7 <1 0.31 MPR-449
Meadow Brook North of Douglas 19-Jan-16 0.09 <1 <2 7 <1 0.28 MPR-449 Meadow Brook North of Douglas 26-Jan-16 0.14 <1 <2 8 <1 0.28 MPR-449 Meadow Brook North of Douglas 2-Feb-16 0.35
<1 <2 8 <1 0.36 MPR-449 Meadow Brook North of Douglas 9-Feb-16 0.17 <1 <2 8 <1 0.4 MPR-449 Meadow Brook North of Douglas 16-Feb-16 0.16 <1 <2 8 <1 0.36 MPR-449 Meadow Brook North of
Douglas 23-Feb-16 0.26 <1 <2 8 <1 0.31 MPR-449 Meadow Brook North of Douglas 1-Mar-16 0.16 <1 <2 8 <1 0.26 MPR-449 Meadow Brook North of Douglas 8-Mar-16 0.28 <1 <2 9 <1 0.29 MPR-449
Meadow Brook North of Douglas 15-Mar-16 0.17 <1 <2 9 <1 0.24 MPR-449 Meadow Brook North of Douglas 22-Mar-16 0.22 <1 <2 10 <1 0.26 MPR-449 Meadow Brook North of Douglas 29-Mar-16 0.24
<1 <2 9 <1 0.23 MPR-449 Meadow Brook North of Douglas 5-Apr-16 0.14 <1 <2 11 <1 0.32 MPR-449 Meadow Brook North of Douglas 12-Apr-16 0.16 <1 <2 13 <1 0.27 MPR-449 Meadow Brook North
of Douglas 19-Apr-16 0.23 <1 2 13 <1 0.22 MPR-449 Meadow Brook North of Douglas 26-Apr-16 0.18 <1 <2 13 <1 0.23 MPR-449 Meadow Brook North of Douglas 3-May-16 0.17 <1 <2 15 <1 0.27
MPR-449 Meadow Brook North of Douglas 10-May-16 0.12 <1 <2 15 <1 0.23 MPR-449 Meadow Brook North of Douglas 17-May-16 0.18 <1 <2 14 <1 0.21 MPR-449 Meadow Brook North of Douglas 24-May-16
0.2 <1 <2 15 <1 0.21 MPR-449 Meadow Brook North of Douglas 31-May-16 0.3 <1 <2 16 <1 0.3 MPR-449 Meadow Brook North of Douglas 7-Jun-16 0.21 <1 2 17 <1 0.25 MPR-449 Meadow Brook North
of Douglas 14-Jun-16 0.15 <1 6 17 <1 0.21 MPR-449 Meadow Brook North of Douglas 21-Jun-16 0.16 <1 6 16 <1 0.23 MPR-449 Meadow Brook North of Douglas 28-Jun-16 0.25 <1 6 17 <1 0.29
City of Maple Ridge Drinking Water Quality Report 2016 67 Sample Name Sample Reported Name Sampled Date Cl2 Free mg/L E. coli MF/100mL HPC CFU /mL Temp °C Total Coliform MF/100 mL Turb.
NTU MPR-449 Meadow Brook North of Douglas 5-Jul-16 0.3 <1 <2 17 <1 0.21 MPR-449 Meadow Brook North of Douglas 12-Jul-16 0.27 <1 <2 18 <1 0.19 MPR-449 Meadow Brook North of Douglas 19-Jul-16
0.24 <1 8 18 <1 0.38 MPR-449 Meadow Brook North of Douglas 26-Jul-16 0.3 <1 <2 19 <1 0.25 MPR-449 Meadow Brook North of Douglas 2-Aug-16 0.27 <1 2 20 <1 0.23 MPR-449 Meadow Brook North
of Douglas 9-Aug-16 0.24 <1 4 19 <1 0.29 MPR-449 Meadow Brook North of Douglas 16-Aug-16 0.63 <1 6 19 <1 0.25 MPR-449 Meadow Brook North of Douglas 23-Aug-16 0.54 <1 4 19 <1 0.27 MPR-449
Meadow Brook North of Douglas 30-Aug-16 0.15 <1 4 18 <1 0.27 MPR-449 Meadow Brook North of Douglas 6-Sep-16 0.22 <1 10 17 <1 0.24 MPR-449 Meadow Brook North of Douglas 13-Sep-16 0.2
<1 12 19 <1 0.23 MPR-449 Meadow Brook North of Douglas 20-Sep-16 0.2 <1 14 19 <1 0.25 MPR-449 Meadow Brook North of Douglas 27-Sep-16 0.24 <1 4 18 <1 0.24 MPR-449 Meadow Brook North
of Douglas 4-Oct-16 0.26 <1 <2 17 <1 0.21 MPR-449 Meadow Brook North of Douglas 11-Oct-16 0.14 <1 6 16 <1 0.17 MPR-449 Meadow Brook North of Douglas 18-Oct-16 0.2 <1 8 15 <1 0.28 MPR-449
Meadow Brook North of Douglas 25-Oct-16 0.22 <1 4 14 <1 0.28 MPR-449 Meadow Brook North of Douglas 1-Nov-16 0.13 <1 <2 14 <1 0.29 MPR-449 Meadow Brook North of Douglas 8-Nov-16 0.09
<1 2 13 <1 0.26 MPR-449 Meadow Brook North of Douglas 15-Nov-16 0.08 <1 <2 13 <1 0.31 MPR-449 Meadow Brook North of Douglas 22-Nov-16 0.1 <1 4 13 <1 0.29 MPR-449 Meadow Brook North
of Douglas 29-Nov-16 0.18 <1 4 12 <1 0.24 MPR-449 Meadow Brook North of Douglas 6-Dec-16 0.06 <1 <2 10 <1 0.35 MPR-449 Meadow Brook North of Douglas 13-Dec-16 0.39 <1 <2 8 <1 0.26 MPR-449
Meadow Brook North of Douglas 20-Dec-16 0.01 <1 <2 8 <1 0.25 MPR-449 Meadow Brook North of Douglas 28-Dec-16 0.02 <1 NA 6 <1 0.19
City of Maple Ridge Drinking Water Quality Report 2016 68 Appendix H: Preventing Water-Borne Infections for People with Weakened Immune Systems
City of Maple Ridge Drinking Water Quality Report 2016 69
City of Maple Ridge Drinking Water Quality Report 2016 70