Rye City School District

Athletic Field Presentation

Jeffery F. Budrow, P.E.Weston & Sampson PE, LS, LA, PC

Tuesday, November 12, 2019

Agenda

• Existing Field, Design Considerations

• Limitations and Constraints

• Turf Field Basics

• Health & Environmental

• Field Design

Map

History

• Constructed early 2000’s, again in 2004

• Reconstructed again in 2006 by FEMA

• At the end of its useful life – 12 years avg.

• Subject to periodic flooding

– Floodplain vs. Floodway

• Need for Replacement

Limitations/Constraints

• Limited Area

o Not enough space for fields – no equivalent space on site

o Field used for multiple sports, Physical Education, Graduation

o Constant usage, rain or shine, 1000 students, HS, MS, club,

community, games, practice, recess, striped for 5 sports

o Grass field cannot stand up to the usage

• Floodplain/Floodway

o Scour Velocity a design consideration

o Infill materials are limited

o Major regulatory and design hurdles to raising field

• Need for Replacement

o 13 years old, 12 is the average lifespan

o Track, field, and tarping system included in bond referendum

o A tarping system will improve its lifespan

Why Synthetic Turf?Synthetic Turf System Components

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

Synthetic Turf Field Infill Options

* Cannot be used due to environmental conditions

Synthetic Turf Field Infill Options

Environmental Obstacles

Recycled

Virgin

Pad Req’d

Floats

Floats

Scours

Environmental

• Floodplain Permit from City

– No increase in elevation or fill in the project

• Wetland Permit from NYSDEC – Buffer

– No work in the wetlands

• Stormwater and Erosion Control

Old Concerns

• Crumb Rubber Issue

– Trace Amounts of metals, perceived toxicity

– Not releasable, “bound within the matrix”

– Most levels below standards and background levels in

soil

– Meets CA Prop 65, European REACH, and ASTM

F3188-16 (Toys)

• Heat (due to black color)

– Coating reduces this

• Injury, Playability

Regulatory Input

• NYSED

• NYS DOH – 2009 Memo

New Concerns

• PFAS/PFOA

– Compounds are a concern in drinking water only

– Are related to Teflon, used in manufacturing

– Compounds were reported found in and around

discarded turf

– There is no science on this yet

– Most manufacturers don’t use PFAS/PFOA in

manufacturing

– PFAS/PFOA don’t meet CA Proposition 65 Standard

therefore cannot be present in fields we specify

Field Design

• New Field will support multiple sports. Striped for 5 sports.

• Specified EPDM over crumb rubber (lower scour potential). SG

= 1.24

• EPDM – crosslinked thermoset rubber – chemicals not

releasable

• Specified coated EPDM (Heat Reduction).

• All materials to meet CA Proposition 65/ European Reach

Standards.

• Meets all constraints for playability, drainage, weather

• We will secure CA Proposition 65 certifications from

manufacturers

• We are developing a lightweight, easily deployable tarping

system

Applicable Standards

• California Proposition 65

• European Reach Standard

• Reviewed and approved by NYSED

• All necessary permits

– City of Rye

– NYSDEC

Thank Youwestonandsampson.com