1. Stormwater Corps
  2. Town Projects
  3. Wethersfield

Wethersfield

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 6 sites in the town of Wethersfield. 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 Keeney Memorial Cultural Center Rain Garden 1 2,100 55,300 0.57 0.07 348.6
Rain Garden 2 9,340 245,951 2.55 0.32 1,550.5
2 Silas Deane Middle School Rain Garden 1 3,136 93,893 0.86 0.11 523
Rain Garden 2 6,926 207,227 1.89 0.24 1,154
3 Eleanor Buck Wolf Nature Center Grass Swale 1,117 29,410 0.31 0.04 187
4 Mills Wood Park Rain Garden 20,164 530,910 5.52 0.70 1,680
5 Volunteer Ambulance Association Rain Garden 1 3,927 103,660 1.08 0.14 656
Rain Garden 2 14,550 383,070 3.98 0.50 2,415
6 Hammer Elementary School Tree Box Filter 2,483 65,374 0.28 0.09 412
Grass Swale 4,312 113,545 1.18 0.15 716
Rain Garden 14,767 388,805 4.04 0.51 2,451

Totals

Total IC Disconnected (sq. ft.) Annual Gallons Treated Annual Nitrogen Reduction (lb. N/yr) Annual Phosphorous Reduction (lb. P/yr)
Total 82,832 2,217,091 22.66 2.87