public meeting synthetic turf infill options and drinking...
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PUBLIC MEETINGSynthetic Turf Infill Options and
Drinking Water Supply Well Head ProtectionMay 22, 2018
Wayland High School Athletic Facilities Improvements | 2018
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Wayland High School Athletic Facilities Improvements | 2018
INTRODUCTIONSWeston & Sampson Team
(Gene Bolinger, Brandon Kunkel, Cass Chroust, Kevin MacKinnon, Michael Moonan, Marie Rudiman)
MEETING AGENDA Project Status Update
Turf Infill Options Well Head Protection Questions + Comments
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Wayland High School Athletic Facilities Improvements | 2018
PROJECT STATUS UPDATE
05.23.18 Loker Neighborhood Meeting 06.20.18 High School Neighborhood Meeting
Design Development Phase
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Wayland High School Athletic Facilities Improvements | 2018
S Y N T H E T I C T U R F S Y S T E M C O M P O N E N T S
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Wayland High School Athletic Facilities Improvements | 2018
Rubber | Plastic Natural | Organic Minerals/Coated Minerals
Wide use, best performance + resiliency
Organic Longest life before replacement
Some recycled Prone to migrating, more maintenance
Less resiliency, harder surface
Perception of toxicity Requires shock pad, higher cost
Requires shock pad, higher cost
Heavy metals in trace amounts, not releasable
Moisture required to retain resiliency, can freeze
Can be abrasive
Shock pad required with some products
May contain pesticides, heavy metals in trace
amounts that are releasable
S Y N T H E T I C T U R F I N F I L L O P T I O N S
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Wayland High School Athletic Facilities Improvements | 2018
S Y N T H E T I C T U R F I N F I L L O P T I O N S
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T O X I C O L O G Y O F S Y N T H E T I C T U R F S Y S T E M S
R I S K = E X P O S U R E x T O X I C I T Y
Bioavailability of chemicals in synthetic turf fields We will analyze proposed crumb rubber prior to installation
Metals Benzothiazole PAHs, SVOCs VOCs
Ways we looked at available data to determine if the risks are acceptable Comparison to applicable standards Ingestion of crumb rubber particles (CRP) Dermal contact with CRP and turf bed Inhalation of chemicals that may volatilize from the synthetic field Leaching of chemicals into groundwater
We will evaluate data we collect from proposed fields in the same manner
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C O M P A R I S O N T O A P P L I C A B L E S T A N D A R D S
T O X I C O L O G Y O F S Y N T H E T I C T U R F S Y S T E M S
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Wayland High School Athletic Facilities Improvements | 2018
C O M P A R I S O N T O S O I L S S T A N D A R D S
T O X I C O L O G Y O F S Y N T H E T I C T U R F S Y S T E M S
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Wayland High School Athletic Facilities Improvements | 2018
Risk Assessment is a way to estimate potential health risks from exposure to chemicals
Risk = Exposure x Toxicity
Conclusion: Potential Risks are an Acceptable Exposure/Negligible Exposure
– Residential Receptor– Age 1 through 31 years
– 30 year exposure
E V A L U A T I O N T H R O U G H R I S K A S S E S S M E N T
T O X I C O L O G Y O F S Y N T H E T I C T U R F S Y S T E M S
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Wayland High School Athletic Facilities Improvements | 2018
Maximum detected concentrations were used Subchronic exposure (1 yr old) 2 days/wk/30 weeks Chronic exposure 3 days/wk/30 weeks Exposure through ingestion and dermal contact Ingest 100 mg/kg crumb rubber on each day of exposure Crumb rubber sticking to face, forearms, hands, lower legs
and feet Assumes crumb rubber can be ingested like soil and
adheres to skin like soil. Reality: far less exposure!
C O N S E R V A T I V E R I S K A S S E S S M E N T A S S U M P T I O N S
T O X I C O L O G Y O F S Y N T H E T I C T U R F S Y S T E M S
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Existing Site Conditions1:12,000
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Existing Site Conditions1:12:000
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Surficial Geology1:12,000
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Monitoring Well Network (1:3,600)
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Monitoring Well Network (1:3,600)
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Pumping Water Level Elevations (2010)1:3,600
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
AECOM Capture Zone (2010)1:12,000
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
DEP Approved Zone II1:24,000
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
DEP Approved Zone II1:24,000
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Cross-Section Map
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Cross-Section A-A’
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Cross-Section B-B’
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Wayland High School Athletic Facilities Improvements | 2018
W E L L H E A D P R O T E C T I O N
Cross-Section C-C’
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Wayland High School Athletic Facilities Improvements | 2018
T H A N K Y O U ! ! !
Questions + Comments