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Elaine Briere - MVLWB
From: Shannon Hayden - MVLWB [shayden@mvlwb.com] Sent: Wednesday, January 20, 2010 8:39 AM To: permits@mvlwb.com Cc: 'Jamie VanGulck'; 'Joe Murdock' Subject: FW: MV2009L3-0005 Public Hearing - Town of Hay River Powerpoint Presentation Attachments: Presentation2 To MVLWB Public Hearing.pdf
For the registry please, Thanks.
From: Michael Richardson [mailto:mrichardson@hayriver.com] Sent: Tuesday, January 19, 2010 11:47 AM To: 'Shannon Hayden - MVLWB' Subject: MV2009L3-0005 Public Hearing - Town of Hay River Powerpoint Presentation
Shannon,
<<...>>
Attached is the powerpoint presentation for the Town of Hay River. There is a possibility that the content may change slightly before the hearing next week. I will keep you updated. Michael Richardson Director of Public Works & Planning Town of Hay River 73 Woodland Dr. Hay River, NT X0E 1G1 T: 867‐874‐6522 x 217 C: 867‐875‐7365 mrichardson@hayriver.com
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Town of Hay River
Water Licence Renewal Presentation January 26, 2010
SLIDE 3 Welcome
On behalf of Major Kelly Schofield, Council and Staff, I bring you greetings and welcome the Mackenzie Valley Land and Water Board to the Town of Hay River. I hope during your stay that you are able to enjoy the hospitality of
- ur businesses and view some of our many local attractions.
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Presentation Outline
Location, location Water Sewage Landfill & Biotreatment Pad Surveillance Network Program Plans Also, a summary of commitments and some responses to interventions
SLIDE 5 Location
The Town of Hay River sits on the south shore of Great Slave Lake on the mouth of the Hay River, at 60°51’N latitude and 115°44’W longitude. The Town is 200 km south-west
- f Yellowknife by air and 134
km from the Alberta border via the Mackenzie Highway.
SLIDE 6
Population
3831 people as of 2008 according to the NWT Bureau of Statistics. Average Annual Growth Rate (AAGR) between 1996 and 2007: 1.2%* * NWT Bureau of Statistics
SLIDE 7 Geology & Terrain 1
The Town of Hay River is situated on the estuary of the Hay River drainage
- system. The average elevation of the
town site is 160 m above sea level and the surrounding terrain is flat. Vale Island, upon which the airport and much of the town’s developed area exists, is a deltaic structure. The Island averages 3 metres or less above the water level and is therefore susceptible to flooding during the spring break-up
- period. Ancient water courses on the
island become active channels during floods.
Vale Island
SLIDE 8 Geology & Terrain 2
Underlying bedrock consists of a shale, limestone, and dolomite. The surface material is a result of glaciation, river development, and the shrinking of Great Slave Lake. A hard till can be found at depths of 5.5 - 8.5 metres. This is covered by a layer of compact silty-sandy gravel which in turn is overlain by water deposited silts and clays. The surface
- rganic material has a maximum thickness
- f 0.6 metres.
New Town Hay River
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Geology & Terrain 3
Surface materials found, such as fine gravel, sand and silt, are typical of deltaic environments. Such materials are susceptible to extensive erosion in the absence of protection from root mats or human-made structures.
SLIDE 10 Geology & Terrain 4
Hay River is within the discontinuous permafrost
- zone. Permafrost is sporadic
and may range from 0 - 9 m in thickness depending on
- rganic cover and location.
Although discontinuous permafrost exists, frost action is not a problem on the higher, well-drained land where the new areas of settlement are situated.
SLIDE 11 Vegetation
The surrounding Boreal Forest is heavily treed. Jackpine, poplar, black spruce, tamarack, and willow are common. Muskeg and swamp are indicative of low-lying land.
Golf Course
SLIDE 12
Climate 1
Hay River receives an average of 34.0 cm of precipitation per year, of which 18.4 cm is rainfall and 165 cm is snowfall. July mean high temperature and mean low temperature are 20.7°C and 10.8°C. January mean high and mean low temperatures are -21.0°C and -30.5°C. Winds are generally from the north-west and annually average 12.1 km/h.
SLIDE 13 Climate 2
The point of spring break-up averages June 10th and freeze- up is usually at the beginning of November.
Left - 2009 Flood Below – Flooding at the West Channel Bridge Left – Ice damming at Great Slave Lake
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SLIDE 15
Water Supply 1
Hay River’s source for potable water is Great Slave Lake. The intake is located near the mouth of the Hay River.
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SLIDE 17 Water Supply 2
Operating capacity of the pumps used Two 200mm submersible pumps rated at 63L/sec as 13.3 MDTH One Operates, one Standby Freshwater intake facility. Approximately 5.5 miles of 24” intake line, yellow jacket coated, welded steel pipe, cement lined Operating capacity of the pumps used Total capacity 2,532 GPM (distribution) Intake screen size 4 ft diameter stainless steel
SLIDE 18
Water Quality
Hay River’s supply water is of good chemical quality for domestic use. Based on the chemical analysis the water is moderately hard, well buffered, slightly alkaline, and moderately aggressive. Raw treated water quality is better than the Guidelines for Canadian Drinking Water Quality,with the exception of raw water turbidity.
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Water Treatment
Water is treated in a conventional water treatment plant consisting of coagulation, flocculation and settling. Water is the disinfected with chlorine. Water treatment personnel are trained Class II Operators.
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Water Requirements
Amount Requested for the Licence Duration: 750,000 Cubic Metres per year 90,000 Cubic Metres per month This is a continuation of the volume approved in the current licence.
SLIDE 21
2008 Water Use
447,198.19 cubic metres
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Concerns & Commitments
For water use issues – none.
SLIDE 23
Sewage Collection
There is presently a piped sewage system, connected to a system of anaerobic lagoons. Five lift stations are used in the Town, which discharge sewage through forcemains directly to the lagoon system for treatment. Trucked sewage is collected routinely from residents along the highway.
SLIDE 24
Sewage Treatment 1
The lift stations discharge sewage into a three-celled anaerobic lagoon system. The combined area of the three lagoons is 1,500,000 m². The effluent flows into a 6.5 km drainage ditch which directs the effluent to a wetlands treatment area, eventually discharging to Great Slave Lake. Lagoon sludge is removed as required and disposed in an approved area adjacent to the lagoons. No sludge was removed in 2009
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Sewage Treatment 2
The treatment system was constructed in the late 1960’s and was studied by Dr. Hartland-Rowe. Published in 1974, his report showed the effluent from the wetland was no different from that of a control site nearby. The Hay River wetland sewage treatment system has become the model for high quality sewage treatment throughout the North.
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Sewage Treatment 3
The Town of Hay River continues to extend an invitation to the Northern Working Group of Environment Canada to study the Hay River Wetland System. Our system has been in continuous operation since for almost 50 years and offers a unique, mature treatment site unlike any other.
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2008 Sewage Production
608,631.26 cubic metres was pumped from lift stations. The discrepancy between water use and sewage production is mostly a result of volume estimates determined from pump run times in the lift stations and not from additional sources, infiltration notwithstanding. 31,122.53 cubic metres was returned to Great Slave Lake at Station SNP 0053-6 (water return at pumphouse)
SLIDE 29 Concerns & Commitments For Sewage
Comment Agency Concern &/or Commitment Explain discrepancy between water and sewage volumes EC and others Agreed, submitted. Is all the data from SNP 0053-2 submitted? EC and others All info submitted in Annual Report Scope and definition of sewage disposal facilities INAC Agreed Reflect new sewage lagoon in Part D INAC Agreed Lagoon cell removal notification INAC Agreed
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Solid Waste Collection
Solid waste is collected twice per week by a two-person crew operating a packer truck. Bulky waste disposal is the responsibility of the individual, although some larger items are collected during the annual spring clean-up.
SLIDE 31
Solid Waste Disposal 1
The solid waste management site is located about 8 km south-east of the Town on the north side of Highway 5. The 150 m x 40 m x 4 m municipal landfill site is compacted daily when possible. Once per week the wastes are covered with clay material. There is partial fencing around the site and access is controlled. A separate 100 m x 200 m bulky waste storage area is used for the disposal of large items and metal wastes. Two locations in the community use used oil as fuel for heat.
SLIDE 32
Landfill Site
SLIDE 33
MSW Recycling
Liquor Bottles – Tri R Recycling Some home composting by local residents with gardens
SLIDE 34
MSW Site Rehab
A contract was awarded in December 2009 to study the current site and its operation and recommend methods to extend its life. The Town has taken notice of the various comments and address these as part of the study. The Town expects the final report by March 31st.
SLIDE 35 BioTreatment Pad Stats
How much soil treated/ removed in 2008 for use as cover in the MSW site? 1351.14 Tonnes How much contaminated soil accepted for treatment in 2008? 96.29 Tonnes How is leachate dealt with in 2008? Contractor reports that no leachate was collected in the sump. Acceptance/Rejection Standards CCME Tier 1 for commercial sites. GNWT requirements for BTEX, metals.
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SLIDE 37 Concerns & Commitments For Plans
Comment Agency Concern &/or Commitment Review Snow Disposal Plan annually INAC Agreed Refer to INAC’s April 2007 Guidelines for Spill Contingency Planning INAC Agreed Review O&M Plan annually and have revisions approved by the Board INAC Agreed Update O&M plan to include Hydrocarbon Biopile Treatment. INAC Agreed. O&M Plan should provide a working reference for operators. EC Disagree Report sample results for leachate from the Hydrocarbon Biopile Treatment. INAC Agreed Submit a Closure & Reclamation Plan for the MSW site for approval. INAC Agreed. Sludge Management Plan EC Agreed. QA/QC Plan to include sampling procedures EC Agreed.
SLIDE 38 Concerns & Commitments for SNP
Comment Agency Concern &/or Commitment Submit a map of all the SNP Stations All Agreed, submitted Add CBOD for three years then submit a trend analysis. INAC Agreed Use CBOD & BOD EC Disagree Sample SNP 0053-2 Monthly during periods of flow EC Agreed Bioassay test and compliance testing EC The Town agreed with EC to maintain the current arrangement. Decrease bioassay sampling frequency to twice annually. INAC Disagree Submit groundwater monitoring analysis with annual report INAC Agreed SNP 0053-3 to be sampled in conjunction with 0053-2. EC Disagree
SLIDE 39 Concerns & Commitments for ENR
ENR Comment Concern &/or Commitment Water licence scope (new site – old site?) The Town intends to operate the current MSW site as long as possible. A&R plan for MSW site is missing Part of consultant’s scope Recommended Terms for the MSW site (signs, segregation, gate, attendant) Agree with first, disagree with rest. Fencing – Recommended Terms Disagree in licence but have committed to it MSW Disposal – frequency of cover Disagree in licence but have committed to study Hazardous materials management and disposal. Disagree in licence but have committed to using ENR Guidelines.
SLIDE 40 Summary
The Town of Hay River agrees in principal that there should be assurance of good planning and good
- perations, and there should be a consistent basis for
inspection enforcement. The Town requests that in the interest of cost-effective governance, items that do not relate directly to compliance and enforcement be removed from the licence or, failing that, be limited in their scope.
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In Closing
The Town of Hay River commits to working with all regulatory agencies with the common goal of protecting the health of the public, protecting the environment, and protecting the public’s purse. We invite any agency to bring their research projects to us to see how we make work together.
