Normandy Lane Force Main: Scufflefield Creek Crossing Emergency Repairs

Project Manager: Eric Goodrich
Client: Hampton Roads Sanitation District
Completion Date: 2007
Original Contract Amount: $564,000.00
Project Duration: 2006-2007

Hampton Roads Sanitation District contracted Environmental Quality Resources to enhance an existing wetland located near Virginia Beach, VA. In order to perform earthworks on the site, a barge had to be implemented to elevate the excavator since there was no stable dry land in the vicinity.

Following excavation, the border of the proposed wetland addition was encircled using 20” diameter EZ-logs stacked on top of one another in a pyramidal form to create an environmentally friendly retention wall. Local dredge material was then incorporated to fill the gap between existing conditions and the new edge line. Spartina alternifolia served as the stabilizer and habit enhancement plant material for the new wetland area.

Lower Spring Branch: Stream Restoration

Project Manager: Joe Humbertson
Client: Baltimore County DEPRM
Completed: October 7, 2008
Original Contract Amount: $872,939.37
Duration: July 7, 2008 to October 7, 2008

The Baltimore County DEPRM selected Environmental Quality Resources, LLC to restore a stretch of Lower Spring Branch parallel to Chapelwood Ln and bound by Pot Spring Rd on the upstream end and Dulaney Valley Rd at the downstream end, just north of Towson, Maryland. The pre-existing conditions consisted of a concrete channel that fed into an unprotected stream channel. The water was well contained by the channel.

However, downstream of the channel, severe undercutting of the banks occurred, slowly eroding away the properties of landowners along Chapelwood Dr. EQR removed the concrete channel and replaced it with a series of rock cross vanes, cobble material riffle structures, and armor stone bank protection which was tied into the existing concrete bridge culvert beneath Pot Spring Rd. Sinuous imbricated rock walls were implemented at the location of the most severe erosion to prevent any future undercutting by the force of stormwater.

In addition to the restoration of the main channel, four tributaries were stabilized and enhanced with log structure cross vanes. Where they intercepted Lower Spring Branch, their cross vanes were often tied into those of the main channel. Deep pools were also constructed at these outfalls to slow the velocity of the stormwater during rain events. Following construction, EQR planted native grasses and trees along the stream to naturalize it and encourage habitat creation.

Upper Paint Branch: Special Protection Area BMP Sites

Project Manager: Kenneth Williams
Client: Maryland State Highway Administration
Completion Date: July 1, 2009
Original Contract Amount: $476,087.08
Duration: November 18, 2008 to July 1, 2009 – 119 calendar days

The Maryland State Highway Administration contracted Environmental Quality Resources to install a series of biotrench BMPs within stormwater bioretention swales along Ansted Rd, Harold Rd, Kiva Rd, Fireside Dr, Redmiles Dr, Maydale Dr, Claude Ln, and Grandad Ln in Silver Spring, Maryland.

The trenches, which measured two feet wide by a minimum of four feet deep by variable lengths, were infilled with gravel and bioretention mix, and lined with sod. These trenches serve to mitigate the collection of stormwater by the swales, reduce the flow velocity of the water, thus cutting down its erosive capacity, and filter the collected water into the aquifer.

Monocacy Reforestation Planting

Project Manager: Chris Mourlas
Client: Utilities and Solid Waste Management Division Frederick County
Completion Date: December 8, 2006
Original Contract Amount: $171,869.00
Project Duration: November 6, 2006 to December 8, 2006 - 90 calendar days

The Utilities and Solid Waste Management Division Frederick County contracted Environmental Quality Resources, LLC to reforest a site adjacent to Interstate-70 and the Monacacy River in the suburbs of the City of Frederick, MD. It was an on-site mitigation for a new sewer line that was installed by Frederick County Public Works. Roughly 4,000 native plants were selected for the site that exhibited similar growth habits to those found in the area and provided watershed buffer and wildlife habitat to the existing ecosystem.