Sally Hoyt, UNC Energy Services April 6, 2009

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Presentation transcript:

Sally Hoyt, UNC Energy Services April 6, 2009 UNC Stormwater BMPs Sally Hoyt, UNC Energy Services April 6, 2009

UNDERGROUND WATER QUALITY

Ehringhaus field

SASB

UNDERGROUND STORAGE

Manning steam

CISTERNS

FedEx Global Ed Cistern – 54,000 gal As a result of this building boom, we have 6 cisterns on campus. All underground, large scale from a variety of materials. FedEx Globlal Ed center uses this cistern for toilet flushing. Bag filters and UV disinfection.

Ramshead Cistern – 56,000 gal Used for landscape irrigation.

Hanes Cistern – 60,000 gal Under historic quad. For landscape irrigation

Boshamer Cistern – 80,000 gal Pre-cast concrete vaults. Baseball stadium.

Hooker Field Cistern – 500,000 gal Stone bed under rec fields used to irrigate soccer and football practice. Will be backed up with RCW.

Hooker field

Hooker field

Bell Tower Cistern – 300,000 gal Bell Tower cistern combines detention with rainwater harvesting and a reclaimed water back-up. Turn over to Kevin to talk about.

UNDERGROUND STORAGE – WITH INFILTRATION

Global ed – east side

Global ed – east side

PERMEABLE PAVEMENT

GH

GH

Bot Garden VEC

Bot Garden VEC

Bot Garden VEC

Regenerative sweeper truck sweeps and vacuums at the same time Regenerative sweeper truck sweeps and vacuums at the same time. campus lots are vacuumed at least once per quarter. This is last slide. This was a whirlwind tour. I’d be happy to talk with you more at the break.

PONDS AND WETLANDS

Rizzo 3

Rizzo 1

BIORETENTION

How Bioretention Works Precipitation Evapotranspiration Inflow Overflow Ponding Overflow -Underdrain Infiltration/Filtration Storage Exfiltration/Recharge Graphic: CWP

Softball

Softball

Softball

GREEN ROOFS

Carrington

Global ed

Global ed

Global ed

Vegetative Conveyance Rams Head Center

For More Information: Sally Hoyt, P.E. UNC-CH Energy Services sally.hoyt@energy.unc.edu 919-843-8800