THE CORPORATION OF THE CITY OF TIMMINS Porcupine …
Transcript of THE CORPORATION OF THE CITY OF TIMMINS Porcupine …
THE CORPORATION OF
THE CITY OF TIMMINS
Porcupine Watershed Public Liaison Committee Meeting
Agenda
Monday, June 24, 2019 at 10:00 a.m.
Location: Gold Boardroom, City Hall
PRESENT:
Chair - Brenda Torresan
Friends of the Porcupine River Watershed (FPRW) - Paula Hoggett, Jim Hoggett, Sherrill Richards (T), Angie Corson
CELA - Jacqueline Wilson
Ministry - Jean-Francois Durocher, Jean Guindon, Sherry Illersich (T)
Goldcorp - Stephanie Thibeault
PHU - Suzanne Lajoie, Lianne Catton
MRCA - David Vallier
City of Timmins - John Curley, Mickey Auger, Dave Landers, Scott Tam, Pat Seguin
Page
1. APPROVAL OF AGENDA a) Approval of Agenda
2. APPROVAL OF PREVIOUS MINUTES 3 - 6 a) Approval of previous Minutes
3. BUSINESS ARISING FROM THE MINUTES 7 - 8 a) Enhanced Sampling Program - Scott Tam 9 b) 2018 Bypass Data - Scott Tam 10 c) Public Notification Procedure - Scott 11 - 18 d) Updated PHU Sampling Approach - Suzanne
4. NEW BUSINESS 19 - 35 a) Presentation on Mining Effluent Effects - Stephanie b) Sanitary System Upgrades - Pat c) Bathometric Data - Angie 36 - 39 d) Results of Snow and Salt Study - Angie
Page 1 of 39
Page
e) Update on Radcliffe Property - Scott f) Storm Water Management - all
5. OTHER MATTERS
6. ADJOURNMENT a) Adjournment
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THE CORPORATION OF
THE CITY OF TIMMINS
Porcupine Watershed Public Liaison Committee Minutes
Monday, May 27, 2019 at 10:00 AM
Location: 220 Algonquin Blvd East, Gold Boardroom
PRESENT:
Chair - Brenda Torresan Friends of the Porcupine River Watershed (FPRW)- Paula Hoggett, Jim Hoggett, Sherrill Richards (T) CELA - Jacqueline Wilson (T) Ministry - Jean-Francois Durocher, Jean Guindon, Sherry Illersich (T) PHU - Suzanne Lajoie, Lianne Catton MRCA - David Vallier City of Timmins - Dave Landers, Scott Tam
ABSENT:
Goldcorp - Stephanie Thibeault City of Timmins - John Curley, Mickey Auger Friends of the Porcupine Watershed (FTPW) - Angie Corson
The following is a summary of items discussed. Please advise the writer of any errors or omissions within 24 hours (1 business day)
1 APPROVAL OF AGENDA a) Approval of Agenda
MOVED BY: Scott Tam
SECONDED BY: Dave Vallier
That the agenda be approved as presented.
2 APPROVAL OF PREVIOUS MINUTES a) Approval of previous Minutes
MOVED BY: Jim Hoggett
SECONDED BY: Sherrill Richards
THAT the minutes of the April 29, 2019 meeting of the Porcupine Watershed Public Liaison Committee be approved.
3 BUSINESS ARISING FROM THE MINUTES a) Technical Support Response to City of Timmins - (Scott Tam)
Scott Tam provided an overview of the comments from technical support in response to the questions from the City of Timmins. He spoke to the recommendations regarding
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Approval of previous Minutes Page 3 of 39
chlorine residuals, modelling and phosphorous limits. Scott further explained that chlorination is a constant dosage rate regardless of the volume of the bypass and it is an automated process in stations #2 and #3 only. Further, there are questions regarding the use of road salt and whether that has any impact on active chlorine.
b) Enhanced Sampling Program - Scott
Scott is looking for any further directions regarding enhanced sampling and it was recommended that a sample occur at the outflow of Bob's Lake Lagoon into Porcupine Lake.
ACTION:
1. Scott will resend the enhanced sampling memo from November 2018. 2. Brenda will share with the Friends of the Porcupine River Watershed for input.
4 NEW BUSINESS a) Public Liaison Committee minutes and agendas on City of Timmins Website - Dave
Landers
Dave walked through the public posting of the Porcupine Watershed Liaison Committee information. The path to it is as follows:
www.timmins.ca
1. In the metaframe go to Our Services and then to Mayor and Council and click on Mayor and Council.
2. Scroll down to the Mayor and Council New and click on the red Civic Web button 3. On the homepage for committee meetings, click on Meetings, which will take you
to the Porcupine Watershed Public Liaison Committee and the information is contained there. The web address is: https://timmins.civicweb.net/Portal/MeetingTypeList.aspx
It was recommended that the Agenda be published, if possible, a week ahead of scheduled meetings. The general consensus is that the public posting of information will be a good step towards sharing information with the community.
b) Update on timing for the signs (City & PHU) to go up at the beaches on Porcupine Lake - Scott
Scott reported that within the next two weeks the signs will be posted at the beaches on Porcupine Lake. The Porcupine Health Unit will follow thereafter.
c) Update on Sanitary System upgrades - Dave
Phase 1 - The engineers are approximately half way through the detailed design of the solution to stabilize pump station #4 and the city expects that design to be available for council's approval by the end of June.
Phase 2 - Continues to move forward on schedule.
The RFP for the drudging of Bob's Lake Lagoon has closed. d) Meeting schedule for summer months - Brenda
The group agreed that the July meeting should be cancelled to respect people's vacation planning.
e) Beach monitoring recommendations - Jacqueline
Jacqueline provided an overview of the memo entitled Recommendations for Porcupine
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Health Unit monitoring of Porcupine Beach. Those recommendations included:
1. That the Porcupine Health Unit conduct water sampling within 24 hours of a triggering event.
2. That the Porcupine Health Unit post an exceedance and if it is retested and the exceedance isn't met that it is taken down, as opposed to not posting an exceedance unless it has been confirmed in subsequent days.
3. That the Porcupine Health Unit prepare a map of sampling points and order of sampling.
4. The Porcupine Health Unit incorporate Health Canada's guidelines into their approach.
5. That the Porcupine Health Unit consider predictive modelling going forward.
Dr. Catton responded that the Porcupine Health Unit has completed a full overview of its sampling program and many of the recommendations are likely covered off in the approach that the Porcupine Health Unit will bring forward and share at the June meeting.
ACTION: Porcupine Health Unit to provide the updated beach monitoring program. f) Budget - Jacqueline
Jacqueline discussed other jurisdictions where there are two models that exist where either a set budget in the amount of approximately $6-12 per year is identified in the budget process or where the Public Liaison Committee predicts its funding needs and makes a specific request on an annual basis through the budget process. Staff confirmed that either process would fit with the city budget program and that the Public Liaison Committee will identify that this will come forward to council when it gives its update to council.
5 OTHER MATTERS a) Future agenda items - update on Radcliffe property; Updating the bathometric data
available from 1952 and in the 1970s; Stormwater Management Plan; Presentation on Mining Effluent Effects Study
Items were reviewed for future meetings. b) Public Notification Procedure
ACTION: Scott to update Appendix C, the Public Notification Procedure for the June 24, 2019 meeting.
c) Fish Tissue Sampling
Jean confirmed that the fish tissue sampling will continue on June 23, 2019. d) 2018 Bypass Data
ACTION: Scott to provide the 2018 bypass data for the June 24, 2019 meeting. e) Cleanup - Porcupine Lake
During the cleanup at Porcupine Lake held this past weekend a number of property standards issues were identified, which will be forwarded to Bylaw for action.
f) Snow and Salt Testing
ACTION - Angie to present on snow and salt testing at the June 24, 2019 meeting.
AGENDA ITEM #2.a)
Approval of previous Minutes Page 5 of 39
6 ADJOURNMENT a) Adjournment
MOVED BY: Paula Hoggett
SECONDED BY: Jim Hoggett
This meeting adjourned at 11:15 a.m.
NEXT MEETING: June 24, 2019.
AGENDA ITEM #2.a)
Approval of previous Minutes Page 6 of 39
Memo
TO: Dave Landers FROM: Environmental Services and Public Utilities Department DATE: May 31, 2019 RE: Enhanced Porcupine Lake Sampling Program – Revision 1
The City of Timmins is seeking a third party consulting company to conduct an enhanced Water Quality sampling program on Porcupine Lake to determine areas of impact associated with sewage bypasses from the Whitney-Tisdale Water Pollution Control Plant (WPCP) and associated pump stations. 1. Field Program The following sampling programs are to be considered:
a. Lake stratification sampling – Collect water quality samples at the
Epilimnion, Thermocline and Hypolimnion to provide a stratified view of the water quality within the lake. Cost: Between $15,000.00 and $35,000.00 b. Sediment core sampling - to identify depth of sewage impact and determine metal analysis. Samples will be done upstream and downstream of the Whitney-Tisdale Water Pollution Control Plant and Pumping Stations. Cost: Between $10,000.00 and $20,000.00 c. Macroinvertebrate sampling - to assist in determining water quality and pollution impact. Cost: Potentially up to $100,000.00 d. Fish tissue sampling - to determine impact of current and historical pollutants on fish population and impact to recreational fishing. Cost: Potentially up to $100,000.00 Recommendation: Environmental Services and Public Utilities recommends Lake Stratification sampling and sediment core sampling. Due to the many users discharging into Porcupine Lake, the City of Timmins is looking to identify sewage impacts. Samples will also be collected upstream of the Whitney-Tisdale Water Pollution Control Plant (WPCP) and associated pump stations to assist in delineating sewage impacts.
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Macroinvertebrate sampling is not recommended due to the length of time it takes for to receive the results. Water and sediment quality is the most effective and economical approach to determining impacts associated with sewage bypasses. The fish tissue sampling is a provincial initiative that is scheduled to begin in June of 2019. The Ministry of Natural Resources and Forestry created the Guide to Eating Ontario Sport Fish, 2013-2014, which includes Porcupine Lake. 2. Analysis a. Full metal analysis; b. Dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total organic carbon, total phosphorus, total nitrogen, total solids, dissolved solids and alkalinity; c. Bacteriological sampling associated with sewage bypasses; E. coli, total coliform 3. Timeline a. This enhanced sampling program is recommended to be conducted during ice cover (Winter) due to ease of access and reduction in contamination from site to site.
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BY-PASS RESULTS
A by-pass occurs when effluent is unable to be processed, for a variety of reasons,
through the sewage system and basically “by-passes” the system and is released
directly into the natural environment. Typically, a by-pass occurs during high flow
periods relating to the spring thaw and/or a severe weather event.
There were a total of 3 by-pass events reported in 2013, 16 in 2014, 22 in 2015, 15 in
2016 and 14 in 2017.
In 2018, there were a total of 7 by-pass events from the specified pumping stations
reported on the following days with the total volumes discharged:
April 22 – stations 2 & 6 - total 34 178 m3
April 23 – stations 1 – total 4 419 m3
May 10 – station 5 – total 65.5 m3
June 13 – stations 2, 3, 4, 5 & 6 – total 11 977 m3
September 5 – station 2 – total – 1 223 m3
October 10 - stations 1, 2, 3, 5 & 6 – total 46 127 m3
November 6 – station 5 – total – 125 m3
The procedure for monitoring by-pass events changed formally in late spring 2018. In
the past, the City of Timmins was responsible for all sampling requirements during a by-
pass. The procedure was changed to the following:
- City of Timmins staff to notify BZEC at the start and end of a by-pass event.
- City of Timmins staff to collect a sample of the actual by-pass effluent and submit
for laboratory analysis.
- After notified by City Staff that the by-pass has concluded, BZEC staff to collect
upstream and downstream samples within the allotted time.
BZEC collected upstream and downstream samples for the June 13, September 5,
October 10 and November 6 by-passes.
AGENDA ITEM #3.b)
2018 Bypass Data - Scott Tam Page 9 of 39
Revision #3 (April 11, 2019)
Public Notification ProcedureFor Sewage By-Pass Events
Whitney-Tisdale Wastewater Treatment Plant including Area Lift Stations
PURPOSE:
The following procedure details the public notification process when bypass event(s) occur in the Tisdale-Whitney sewage distribution system (Porcupine Lake, Porcupine River Area) as co-ordinated by the Wastewater Treatment Department of the Corporation of the City of Timmins.
The outlined procedure shall be initiated in order to notify the public that raw sewage is being bypassed into the waterways.
PROCEDURE FOR BYPASS EVENTS:
Employee responsibilities
1. Employee to immediately notify WWTP Chief Operator or designate.2. Employee to immediately initiate the sampling requirements for a spill or discharge into
the environment.3. Employee to record bypass event in operator log book/sheet.4. If a bypass occurs during the recreation season (between May 1st and September 30th),
the employee is to ensure the bypass notification sign is displayed at the Porcupine Lake Waterpark and Bannerman Park. The notice is to be removed 48 hours after the bypass has ended.
Management responsibilities
1. Chief Operator, or designate, to perform the following step by step notification of bypass:a. Call Spills Action Centre at 1-800-268-6060b. Call Porcupine Health Unit at 705-267-1181
2. Chief Operator, or designate, to provide Spills Action and PHU with the following information :a. Date and time of the bypass event, b. Location of the bypass event (ie Pump Station Number)c. Volume of effluent that was bypassed
3. Post on City of Timmins Website: “Notice of Disruption” of reported spill (on the next business day) with the same reported information above.
Scott TamManager of Environmental Services and Public Utilities
Date
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June 18, 2019
A review was undertaken to assess opportunities to enhance PHU’smonitoring ofPorcupine Lake,and to further support the City of Timmins, and the Ministry ofEnvironment, Conservation and Parks (MECP), in addressing current and historicalconcerns. The assessment of Porcupine Lakesampling included a review ofcurrent procedures and data, relevant legislation, public health documents, andconsultation with other health units. Public Health Ontario was also consultedwith respect to the follow—upand assessment of concerns regarding PorcupineLake.
An enhanced program has been designed to increase data collection and beachassessment to further evaluate historical data for Porcupine Lake, to help informnext steps, in addition to support ongoing monitoring and communication of safebeach use for the public. The review was planned in response to meetings lastyear, and the results are expected to support the City ofTimmins PorcupineWatershed Public Liaison Committee. The PHU remains committed to ensuringhealthy use of this great resource by community members.
Signage (Appendix A) outlining general safe public beach usage will be posted on-site at all public beaches within the Porcupine Health Unit's jurisdiction.
YearsofPublicHealth
Années desanté publique
Head Office:I69 Pine Street South
Postal Bag 2012Timmins,ON PAN 8B7
Phone: 705 267 1 I81Fax: 705 26-4 3980
Toll Free: 800 461 1818
E-mail: [email protected] caWeb site: www.porcupinehu.on.cc:
Branch Offices: Cochrane, Hearst,Hornepoyne, Iroquois Falls,Kapuskosing, Matheson,Moosonee, Smooth Rock Falls
Porcupine LakeExecutive Summary
The purpose of this document is to provide a brief outline the Porcupine HealthUnit's (PHU)enhanced beach management program for Porcupine Lake.The goalof the PHU’sbeach management program is to prevent and reduce water—borneillnesses and injury related to recreational water use in accordance with theMinistry of Health and Long—TermCare's Recreational Water Protocol (1).
Introduction
Prior to the commencement of the 2019 beach season at Porcupine Lake, a moredetailed on—sitebeach assessment will be conducted, which includes the areasurvey, creation of a map for collection sites, and the collection of water samplesto assess water quality. Any hazardous conditions noted at the time of the beachassessment will be highlighted and addressed immediately.
Pre-Season
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Updated PHU Sampling Approach - Suzanne Page 11 of 39
http://www.health.gov.on.ca/en/pro/programs/publichealth/oph standards/docs/protocols
te
rotocols guide
lines/Operational Approaches to Rec Water Guideline 2018 en.pdf
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migrationjhea|th\/-
eau/aIt/ndf/watenrecreational—recreative-eau-entz.Ddf
: www. ublichealthontarioca -
htt 5: www,ontario.ca laws statute 90h07
1. Ontario. Ministry of Health and Long—TermCare. Recreational water protocol. Toronto, ON:
Queen's Printer of Ontario; 2018. Available from:
References
guidelines/Recreational Wa r%2OProtoco| 2018 en.odf
htto://www.DorcuDinehu.on.ca/en/vour-mmunitv/safe—water/beachwise—resu|ts/
htto://www.oorcupinehu.on.ca/en/
canadians/Dublications/hea|thv—|iving—vie-saine/water-recreationa|—recreative—
2. Ontario. Ministry of Health and Long—TermCare. Operational approaches for recreationalwater guideline, 2018. Toronto, ON: Queen's Printer of Ontario; 2018. Available from:http://hea|th.gov.on.ca/en/pro/programs/publichealth/oph standards/docs/p_
3. Porcupine Health Unit [Internet]. Porcupine BeachWise. Available from
4. Porcupine Health Unit [Internet]. Porcupine Health Unit. Available from
7. Public Health Ontario. Public health inspector's guide to environmental microbiologylaboratory testing. 5”‘ed. [Internet]. Toronto, ON: Queen's Printer of Ontario; 2017. Availabl
efrom:
8. Health Protection and Promotion Act, RSO 1990, c. H.7. Available from
5. Porcupine Health Unit [Internet]. Porcupine Health Unit Facebook. Available fromhttps://www.facebook.com/vourPHU/
6. Health Canada. Guidelines for Canadian Recreational Water Quality. 3”‘ed. [Internet]
Ottawa, ON: Health Canada Publications; 2012. Available from:https://www.canada.ca/content/dam/canada/hea|th-canada/
AGENDA ITEM #3.d)
Updated PHU Sampling Approach - Suzanne Page 14 of 39
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Appendix A:Notice: Swim with Confidence igns
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Updated PHU Sampling Approach - Suzanne Page 15 of 39
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Appendix B:Public BeachSurveillance Field Report (Page 1
Public Beach Surveillance Field Report
Beach Name: Posted at Time of Sampling: D Yes C!No
Surveyor Name: Beach IDnumber‘.
Date of Sampling: Time of Sampling
Part 1: General Beach Conditions
Air Temperature: Cl °C |'_'l°F Water Temperature: C] “C l.'_1°F
Rain Intensity: Rainfall:
El Light [<25 mm/hr] III <24 hours cm rainfall reported
El Medium (2.6-7.5 mm/hr) El <48 hours cm rainfall reported
El Heavy (>7mm/hr) El <72 hours cm rainfall reported
El None El >72 hours cm rainfall reported
Water Clarity: Beach Material:
El <100 cm Cl Sandy
El >‘100cm El Mucky
Value [NTU): El Rocky
D Other [specify]:
Sky Conditions: Wind Direction:
El Sunny El None
CI Mostly Sunny ElAway from Shore
C! Partly Cloudy D Toward Shore
El Mostly Cloudy El Parallel to Shore
Cl Overcast
Wave Height (cm): Wind Speed (km/hr]:
Subsurface Conditions:
Does the bottom consist of material that is easily stirred up? El Yes D No
Are the slopes gentle? ClYes El No
Is the bottom free of large rocks.sharp objects and other obstructions? El Yes El No
Is the bottom free of weeds? El Yes El No
Is the beach susceptible to undertows or rip currents? CIYes E!No
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UNAFEFORBATHING
%.
Appendix C
Warning: Unsafe for Bathing Signs
3 AUI PROR ALABAIGNADmanLEVELSOFBACTERMm LESNIVEAUXELEVESDEBACTERIESTHESEwA1'EnsMAYposg A DANSCESEAUXPEUVENTPOSER
|-|EA|_n-|_ UNRISQUEAVOTRESANTE.
For more information, call your localhealth inspector or 1-800-481-1818.
www.pnrcupinehu.on.caHum»!-an-udnanb
Puuruhtenirdaplusamplasransaignaments,communique:am |'inspenleurIlesantépuhliq
uedevolrelucalité.nuappelezau1 lill?-461-1818.www.porcupInehu.on.ca
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 1
Porcupine Watershed Public Liaison CommitteeJune 2019
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 2
Metal and Diamond Mine Effluent
Regulations
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 3
Metal and Diamond Mine Effluent Regulations
• The Metal and Diamond Mining Effluent Regulations, SOR-2002-222 (MDMER) under the Fisheries
Act, R.S.C. 1985 (section 34, 36, 38) fall under the jurisdiction of Environment and Climate Change
Canada (ECCC)
• MDMER is designed to protect fish and fish habitat from effects in receiving waters due to the release
of effluent from a metal mine, diamond mine or milling facility
• MDMER apply to a facility with an effluent flow rate of > 50 m3/day
• MDMER currently apply to ~110 facilities across Canada
• MDMER apply to new or reopened mines or once construction begins
• MDMER continue to apply until specified conditions are met to become a recognized closed mine
Note: The regulatory requirements listed in this document are current only to the date of publishing. These are excerpts
which are known to be applicable to Newmont Goldcorp, Porcupine.
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Metal and Diamond Mine Effluent Regulations
• MDMER requires:
‒ Effluent quality monitoring on a weekly basis including
pH, arsenic, copper, cyanide, lead, nickel, zinc,
suspended solids, radium-226 and ammonia (recently
added)
‒ Acute lethality testing from effluent conducted on a
monthly basis for rainbow trout and Daphnia magna
‒ Sublethal testing conducted twice per year
‒ Effluent characterization and water quality monitoring
conducted four times per year
‒ Environmental effects monitoring (EEM) study to
monitor the effects of effluent discharge on receiving
waters using:
‒ fish population survey
‒ mercury in fish tissue (if concentration is >0.1ug/L)
‒ benthic invertebrate community survey
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Metal and Diamond Mine Effluent Regulations
• Summary annual reports are submitted electronically to the Authorization Officer (AO) no later than
March 31 in each year
• Reports on deposits out of the normal course of events must be submitted to the AO within 30 days
of the occurrence
• Effluent quality monitoring results are submitted electronically through the Mine Effluent Reporting
System (MERS)
• Mines are required to conduct biological monitoring studies to assess effects on fish, fish habitat and
the use of fisheries resources
• If effects are identified, subsequent EEM studies would be more intensive to determine magnitude,
extent and cause of effects
• If there are no effects, then frequency of monitoring activities may be reduced
• Once an effect has been identified and magnitude, extent and possible causes are known, follow up
actions are determined on a site-specific basis by ECCC
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 6
PGM Environmental Effects Monitoring
• The following Porcupine Gold Mines (PGM)
sites fall under MDMER:
‒ Dome Mine - ETP and MWSP (Cycle V)
‒ Owl Creek Pit - OCPII (Cycle V)
‒ Pamour Mine - PM122 (Cycle IV)
‒ Hollinger Mine - LPMW (Cycle I)
• EEM studies are conducted by Minnow
Environmental
• Most recent sampling occurred May 2016
(aquatic) and September 2016 (benthic)
• EEM Study Report was submitted to ECCC
and MECP June 2017
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 7
PGM Environmental Effects Monitoring
• Results for the Dome Mine EEM Study indicate:
‒ After 110 years of active mining in the area
that there may be limited effects in the near-
field receiving environment
‒ Due to external factors such as temperature,
flow, nutrients, predators, results are
inconclusive and the ECCC recommends
continued periodic monitoring as per the
required cycles
• Next Steps:
‒ The most recent EEM Study Design was
prepared and submitted December 2018
‒ The next sampling program is schedule to
be conducted spring / fall of 2019
‒ The final EEM Report will be submitted to
ECCC and MECP by June 2020
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 8
Tailings Stewardship
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 9
Canadian Dam Association
• The Canadian Dam Association (CDA) is a group of dam owners, operators, regulators, engineers
and others who share the goal of advancing knowledge and practices related to dams
• The members are involved with all types of dams, including those for irrigation, hydroelectric power,
municipal water supply and mining operations
• CDA Vision – A future in which all dams are safe, well-managed and benefit society
• CDA Mission – To encourage co-operation, advance technical knowledge and build competency
related to dams in Canada
• The CDA was formed in 1998 through merger with CANCOLD (formed in 1950’s)
• The CDA is a member on the International Commission on Large Dams (ICOLD)
• ~50 sustaining and corporate members
• ~800 individual members (i.e. memberships)
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Canadian Dam Association
• In general terms, a “dam” is a barrier constructed for retention of water, fluid waste or tailings
• There are over 10,000 dams in Canada
• Ownership by
‒ Federal and provincial governments
‒ Electric utilities
‒ Industrial and mining companies
‒ Irrigation districts
‒ Municipalities
‒ Private individuals
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Canadian Dam Association
• Regulatory framework for dam safety is mainly a provincial or territorial responsibility
‒ Regulations exist in Ontario under MNRF, MECP, MENDM
‒ Some provinces rely on legislation related to water resources
• There are no federal regulatory agency or overarching program
• Main Dam Safety Guidance Document – issued in 2007 and revised in 2013
• Subsequent supporting bulletins and guidelines
‒ Application of Dam Safety Guidelines to Mining Dams (2014)
‒ Technical bulletin on Environmental Design Flood, Geotechnical items and Closure (2014)
‒ Guidelines for Public Safety Around Dams (2011)
‒ Technical bulletins on dam safety topics (2007)
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 12
PGM Tailings Stewardship
• The Dome Mine No.6 Tailings Management Area
(TMA) started construction in 1982 and is currently
operational
• History of Engineer of Records (EOR):
‒ Mine Tailings International Ltd. (MTI) – 1982-1935
‒ Dennis Netherton Engineering (DNE) – 1985-1992
‒ Klohn Leonoff Ltd./Klohn-Crippen Consultants Ltd.
– 1992-2004
‒ Golder Associates Ltd. – 2004-2011
‒ BGC Engineering – 2012-present AG
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PGM Tailings Stewardship
The current EOR, assists with:
‒ Design of the dams
‒ Quality assurance during construction
‒ Review and comment on instrumentation
and monitoring
‒ Conduct annual inspections
‒ Update No.6 TMA Water Balance
‒ Update Tailings Deposition Plan
‒ Update Operating, Maintenance and
Surveillance Manual
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 14
PGM Tailings Stewardship
• How is No.6 TMA engineered and constructed?
‒ Upstream dam raise (historical method)
‒ Downstream dam raise (current method)
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PGM Tailings Stewardship
• Design Basis - Canadian Dam Association Guidelines (2014)
‒ Contain the Environmental Design Flood (EDF): 30-day, 1:100 year return period of rain and
snow meld (equivalent rainfall depth of 486 mm)
‒ Pass the Probable Maximum Flood (PMF) without overtopping: 6-hr Probably Maximum
Precipitation (PMP) immediately following EDF (rainfall depth of 405 mm)
‒ Freeboard: wind setup and wave run-up (1000-yr wind) reservoir at normal maximum operating
level
‒ Earthquake: 10,000-yr ground motion, 7.5 M
‒ Factor of Safety: long-term steady stage of 1.5
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Presentation on Mining Effluent Effects - Stephanie
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 16
PGM Tailings Stewardship
• Online monitoring, daily inspections
• Annual design reviews with MNRF and MENDM
• Annual construction records to MNRF and MENDM
• Annual Performance Report to MECP
• Annual Dam Safety Inspections by EOR
• Annual Tailings Stewardship Program reviews by
Corporate
• Annual mock testing of the Emergency Response
Plan
• 2-year Operating, Maintenance and Surveillance
Manual updates
• 2-year Tailings Deposition Planning updates
• 3-year Towards Sustainable Mining audits by Mining
Association of Canada
• 5-year Dam Safety Reviews by EOR
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Presentation on Mining Effluent Effects - Stephanie
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June 2019 Newmont Goldcorp I Porcupine Watershed Public Liaison Committee 17
Key Contacts
Bryan Neeley
Sustainability Manager
Stephanie Thibeault
Sr. Environmental Coordinator
Community Feedback Protocol
Phone: 705-235-6589
Fax: 705-235-6551
Email: [email protected]
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Presentation on Mining Effluent Effects - Stephanie
Page 35 of 39
Laboratory AnalysisSamples taken in March 2019
Units Barn Arena Highway 655 Gervais Algonquin Dalton Canadian Water Quality GuidelinesPH 5.56 8.00 8.39 7.61Chloride mg/L < 1 14.8 689 10 121.5 3Conductivity µs/cm 5 102 2010 80Oil & Grease mg/L < 1 4 2 1
120no data
no datano data
Parameter Reference AreaSnow Dump Location Road samples
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A ITEM #4.d)
Results of Snow
and Salt Study - AngiePage 36 of 39
Laboratory AnalysisSamples taken in March 2019
Units PWQOCanadian Water Quality Guidelines
Aluminum mg/L 0.017 29.6 1.11 ‐ ‐Antimony mg/L < 0.0005 0.0006 0.0006 0.02 ‐Arsenic mg/L < 0.001 0.026 0.002 0.1 0.005Barium mg/L < 0.001 0.33 0.055 ‐ ‐Beryllium mg/L < 0.0005 0.0009 < 0.0005 ‐ ‐Bismuth mg/L < 0.001 < 0.001 0.003 ‐ ‐Boron mg/L < 0.002 0.028 0.007 0.2 1.5
Cadmium mg/L < 0.0001 0.003 0.0001 0.0002 0.0009Calcium mg/L 0.13 70.1 22.8 ‐ ‐Cerium mg/L < 0.001 0.15 0.011 ‐ ‐Cesium mg/L < 0.001 0.002 < 0.001 ‐ ‐
Chromium (VI) mg/L < 0.001 0.14 0.006 0.001 0.001Cobalt mg/L < 0.0001 0.0857 0.0089 0.0009 ‐Copper mg/L < 0.001 0.29 0.024 0.005 ‐Europium mg/L < 0.001 0.002 < 0.001 ‐ ‐Gallium mg/L < 0.001 0.02 0.002 ‐ ‐Iron mg/L 0.04 56.2 2.16 0.3 0.3
Lanthanum mg/L < 0.001 0.073 0.005 ‐ ‐Lead mg/L 0.0003 0.19 0.0041 ‐ ‐
Lithium mg/L < 0.005 0.037 < 0.005 ‐ ‐Magnesium mg/L 0.024 35.9 3.36 ‐ ‐Manganese mg/L 0.002 2.25 0.148 ‐ ‐Mercury mg/L < 0.0001 < 0.0001 < 0.0001 0.0002 0.000026
Molybdenum mg/L < 0.001 < 0.001 < 0.001 0.04 0.073Nickel mg/L < 0.001 0.31 0.011 0.025 ‐Niobium mg/L < 0.001 < 0.001 < 0.001 ‐ ‐
Phosphorus mg/L < 0.05 2.14 0.166 ‐ ‐Potassium mg/L < 0.1 5.3 0.769 ‐ ‐Rubidium mg/L < 0.001 0.045 0.003 ‐ ‐Scandium mg/L < 0.001 0.01 < 0.001 ‐ ‐
Parameter
Water Quality Legislation
Reference Area Barn Arena Highway 655
Snow Dump Location
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Results of Snow
and Salt Study - AngiePage 37 of 39
Laboratory AnalysisSamples taken in March 2019
Units PWQOCanadian Water Quality GuidelinesParameter
Water Quality Legislation
Reference Area Barn Arena Highway 655
Snow Dump Location
Selenium mg/L < 0.0005 0.0007 < 0.0005 0.1 0.001Silicon mg/L < 0.6 21 1.28 ‐ ‐Silver mg/L < 0.0001 0.0002 < 0.0001 0.0001 0.00025Sodium mg/L < 0.1 1.2 294 ‐ ‐
Strontium mg/L < 0.001 0.106 0.073 ‐ ‐Sulfur mg/L < 0.8 0.8 3.85 ‐ ‐
Tellurium mg/L < 0.001 < 0.001 < 0.001 ‐ ‐Thallium mg/L < 0.0001 0.0007 < 0.0001 0.0003 0.0008Thorium mg/L < 0.001 0.003 < 0.001 ‐ ‐
Tin mg/L < 0.001 < 0.001 < 0.001 ‐ ‐Titanium mg/L < 0.001 0.9 0.048 ‐ ‐Tungsten mg/L < 0.001 0.001 0.001 0.03 ‐Uranium mg/L < 0.001 0.002 < 0.001 0.005 0.015Vanadium mg/L < 0.001 0.09 0.004 0.006 ‐Yttrium mg/L < 0.001 0.021 0.002 ‐ ‐Zinc mg/L 0.003 1.19 0.05 0.03 0.007
Zirconium mg/L < 0.001 0.004 0.002 0.004 ‐
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Results of Snow
and Salt Study - AngiePage 38 of 39
Field Parameters Averages calculated
Samples taken in March 2019
RoadsUnits Reference Area Barn Arena Highway 655 Gervais Road Dalton Rd. Algonquin PWQO Canadian Water Quality Guidelines
Salinity ppm 15.96 105.95 3628.29 1169.94 132.37 245.33 No DataConductivity µs/cm 49.60 225.90 7591.10 1350.00 225.60 510.30 No Data
pH 5.56 8.04 8.26 7.61 7.64 7.98 6.5‐9
***0.000035ppm (salinity of the ocean)
6.5‐9
ParameterSnow Dump Location Water Quality Legislation
No DataNo Data
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Results of Snow
and Salt Study - AngiePage 39 of 39