Deep River

Project Team

Date: Summer 2021
UConn Students: Ben Zaccara, Fiona Casey, Rachael Ruggiero
UConn CLEAR: David Dickson, Michael Dietz, Chet Arnold and Josh Snarski


The Runoff Reduction Report

This report includes recommendations for green stormwater infrastructure practices at 5 sites in the town of Deep River. 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 Deep River Public Library Rain Garden 15,333 403,711 4.19 0.53 1,273
2 Valley Regional High School Rain Garden 4,878 128,435 1.33 0.17 808
Tree Box Filters 19,035 501,183 5.21 0.66 N/A
3 Winthrop Middle School Rain Garden 1 7,361 193,855 2.01 0.26 815
Rain Garden 2 1,176 30,917 0.32 0.04 195
Grass Swale 16,335 430,152 4.47 0.57 2,711
4 Deep River Elementary Rain Garden 1 5,619 147,972 1.54 0.20 1,864
Rain Garden 2 3,615 95,194 0.99 0.13 600
Rain Garden 3 4,922 129,612 1.35 0.17 817
5 Deep River Town Hall Rain Garden 958 25,277 0.26 0.03 159

Totals

Total IC Disconnected (sq. ft.) Annual Gallons Treated Annual Nitrogen Reduction (lb. N/yr) Annual Phosphorous Reduction (lb. P/yr)
Total 79,232 2,086,258 21.67 2.76

Site Design

Plans

Rain Garden at Town Library

Project designs were created by the University of Connecticut.