1. Stormwater Corps
  2. Town Projects
  3. Hebron

Hebron

Project Team

Date: Fall 2021
UConn Students: Alex Joslin, Amealia Maynard, Lexi Cyr
UConn CLEAR: David Dickson, Michael Dietz

The Runoff Reduction Report

This report includes recommendations for green stormwater infrastructure practices at 7 sites in the town of Hebron. Each site is displayed with an ArcGIS map of the recommended practice, detailed description of our recommendations, and an informational table. Each table shows an estimated drainage area, our recommended green infrastructure, annual gallons of runoff treated, nitrogen and phosphorus pollution reduction amounts, and the suggested size of each practice. These estimations were calculated based on the drainage area, annual rainfall estimates specific to Connecticut, and literature export values.

GSI Summary Table

The following calculations display the potential pollutant-reducing benefits if the practices identified within the report were implemented:

 

Site Location GSI Suggestion Drainage Area (sq. ft.) Annual Gallons Treated Annual Nitrogen Reduction (lb. N/yr) Annual Phosphorous Reduction (lb. P/yr) Suggested Practice Size [6 in. depth] (sq. ft.)
1 Hebron Elementary Rain Garden 1 3,504 92,258 0.96 0.12 584
Rain Garden 2 1,476 38,862 0.40 0.05 246
2 Russell Mercier Senior Center Pervious Asphalt 17,294 517,436 4.74 0.60 6,578
3 Town Office Building Rain Garden 1 4,221 111,152 1.15 0.15 704
Rain Garden 2 8,759 35,036 2.40 0.30 1,459
4 Veteran's Memorial Park Pervious Pavement 37,025 1,097,400 10.05 1.27 18,340
5 Rham Middle & High School Pervious Concrete 10,280 307,575 2.82 0.36 4,225
Grass Swale 9,060 238,560 2.48 0.31 1,750
6 Burnt Hill Park Rain Garden / Grass Swale 2,520 66,359 0.69 0.09 420
Rain Garden 1,670 43,976 0.46 0.06 278
7 Gilead Hill School Pervious Asphalt 8,965 236,045 2.46 0.31 1,494

Totals

Total IC Disconnected (sq. ft.) Annual Gallons Treated Annual Nitrogen Reduction (lb. N/yr) Annual Phosphorous Reduction (lb. P/yr)
Total 104,774 2,784,659 28.61 3.62