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Newtown Creek Funding Opportunity Site: Laguardia Community College. Parking Lot Redesign Proposal. Project Overview. Scope: Redesign Laguardia Community College’s parking lots 2 & 3 (19,000 sf ) in accordance with NYSDEC Stormwater BMPs. Primary Goals:

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Presentation Transcript
project overview
Project Overview
  • Scope:
    • Redesign Laguardia Community College’s parking lots 2 & 3 (19,000 sf) in accordance with NYSDEC StormwaterBMPs.
  • Primary Goals:
    • Minimize the discharge of pollutants into Newtown Creek.
    • Maintain downstream habitat.
stormwater runoff combined sewer systems and newtown creek
Stormwater Runoff, Combined Sewer Systems, and Newtown Creek
  • Stormwaterrunoff & combined sewer systems at Newtown Creek:
    • devastates the ecosystem,
    • severely affects the economic value of adjacent waterway properties,
    • reduces usage of waterways for recreation or fishingpurposes, and
    • poses direct and indirect health hazards.
  • Cleaning up Newtown Creek is expected to cost more than $500M.
design opportunities
Design Opportunities

Reduce stormwater runoff by:

  • Converting impermeable surfaces to permeable paving,
  • Including tree planters, and
  • Implementing stormwater BMPs such as curb cuts and bioretention swales to direct stormwater to planting areas
project benefits
Project Benefits
  • Reduced Flood Control: keeping runoff close to the source and preventing sediment loading prevents streams from being overburdened with excess water during rain events that can cause flooding and severe erosion downstream.
  • Increased property value and tax revenue.
  • Reduced infrastructure requirements and development and maintenance costs.
  • Placing water quality practices onsite enhances public awareness of water quality issues and can lead to overall improvement in its quality of life.
  • Enhances opportunities for regional economic development through thoughtful design and planning.
  • Improved habitat.
project benefits1
Project Benefits
  • Regulatory compliance credits, easier permit processes, lower impact fees, and further incentives.
  • Tax credits: may be eligible for state energy tax deduction ($7.50 per sf, a total of $142,500/yr)
  • Improved groundwater recharge and drinking water and decreased treatment costs.
appendix calculations
Appendix: Calculations

Stormwater Runoff Calculations

Existing Runoff from Lots 2 & 3 (gallons/year) 497,241

Proposed Runoff from Lots 2 & 3 (gallons / year) 183,194

Net Proposed Captured Water for Lots 2 & 3 (gallons/year) 314,047

USEPA, 2004

Combined sewer outfalls in New York City flood during half of all rainstorms, discharging approximately 27 billion gallons of wastewater in an average rainfall year.

From NYCDEP Publication: New York City’s Wastewater Treatment System

www.nyc.gov/html/dep/pdf/wwsystem.pdf

DEP devised a three-pronged approach – an immediate, an interim, and a longterm program – to administer 1,200 wet tons of sludge produced each day.

($670M) - The first facility went on line in December 1991. The other seven were finished and became operational by June 1992.

$100M/YR, ($500M) - Three contractors were hired through five-year contracts to provide land-based biosolids management. The contractors were responsible for the processing, production and shipment of biosolids as high-quality soil amendments and the application thereof.

$50M/YR, ($750M) - The long-term program currently costs, and includes three 15-year contracts that were let for the city’s entire biosolids production through June 2013.

Total Costs from 1991-2013 for Sewage Treatment: $1.92 Billion

Cost per year for Sewage Treatment: $83.5M

Cost per day for Sewage Treatment: $.23M

NYCDEP / Riverkeeper, 2005b

http://www.nyc.gov/html/dep/html/harbor_water/northri.shtml

New York City's plants treat about 1.4 billion gallons of wastewater from homes, businesses, schools, and streets in the five boroughs every day (NYCDEP).

The total dry weather capacity of New York City’s sewage treatment plants is 1.8 billion gallons per day (Riverkeeper, 2005b).

NY Times Superfund Cleanup Costs Article

http://www.nytimes.com/gwire/2011/03/21/21greenwire-epa-nyc-brace-for-grueling-cleanups-of-2-indus-31604.html?pagewanted=all

Scrubbing more than 150 years of industrial pollution in the Gowanus could cost up to $500 million, with Newtown Creek -- which is more industrialized and a mile-and-a-half longer than the Gowanus -- expected to cost still more.

Cost per gallon of sewage treatment in NYC:

$.23M/1400M gallons = $164/gallon

$.23M/1,800M gallons = $128/gallon

(164+128)/2 =AVG $146/gallon

Assuming the proposed design will reduce the amount of stormwater runoff from the site by 314,047 gallons, the amount of annual savings in terms of water treatment costs are:

314,047 gallons/year x $146/gallon = $46M/year

Pollution Externalities: devastate the ecosystem, severely affect economic value of adjacent waterway properties, reduce usage of waterways for recreation or fishing, pose direct (direct contact) or indirect (through consumption) health hazards.

Scrubbing more than 150 years of industrial pollution from Newtown Creek is expected to cost more than $500M.