Rain Garden at Noman Cole Pollution Control Plant Mount Vernon District Project No. SD-000031-060

1. Noman M. Cole Jr. Pollution
Control Plant Rain Garden
Mount Vernon District
Project No. SD-000031-060

2. Project Details
Description:
The Noman M. Cole, Jr. Pollution Control Rain Garden project was substantially completed on 06/21/13 on
time and within budget. This is a water quality improvement project that will benefit receiving waters and the
Chesapeake Bay. The project consisted of installing a bioretention filter adjacent to the plant laboratory to
capture roof and sheet flow runoff.
Project Overview:
The bioretention filter improves water quality by treating runoff from about 0.62 acres of drainage area. It
removes 2.7 lbs/yr of nitrogen, 0.33 lbs/yr of phosphorus, and 72 lbs/yr of sediment from the runoff leading
to the Pohick Creek.
DPWES Project Team:
• Project Manager: Sajan Pokharel
• Construction Manager: William Newt Nolan
• Project Inspector: Howard Champ
• Survey Analyst: Gregory Harper

3. Project Location
9399 Richmond Highway, Lorton - Tax Map No. 1083-01-0023
PROJECT LOCATION

4. Pre-existing Condition: Existing Stormwater
Drain
Existing
Stormwater
Drain

5. Post Construction: Installation of VDOT #57 Stone
and 6” PVC Perforated Pipe
VDOT #57 Stone6” PVC
Perforated
Pipe

6. Post Construction: Modification to existing Storm
Structure
Existing Storm
Structure Being
Modified

7. Post Construction: Placing Compost on Top of
Bioretention Filter
Compost

8. Post Construction: Installation of Landscaping

9. For additional Information, please call
Irene Haske, Public Information Officer
703-324-5821, TTY 711
SWPDmail@fairfaxcounty.gov
www.fairfaxcounty.gov/dpwes