A recognized leader in Stormwater Compliance since 2002, RES provides Erosion & Sediment (E&S) Control and stormwater management (SWM) solutions. We provide the full suite of SWM solutions including permitting and inspection of active and post-construction sites, maintenance and retrofit of stormwater ponds, and routine maintenance of other SWM Best Management Practice (BMP) facilities.
Our experience includes assisting clients with Construction General Permits (CGP) in North Carolina, Virginia, and Maryland, among other locations. For compliance with the CGP, all structural and non-structural stormwater controls are inspected and documented on a routine basis. Clients include the development, utility, and transportation industries.
Rivers, streams, wetlands, floodplains, and forests provide a suite of critical services like clean water and flood protection, and are essential and effective components of our water infrastructure. Green infrastructure is effective, economical, and enhances community safety and quality of life. It means planting trees and restoring wetlands, rather than building a costly new water treatment plant.
Over 100 million acres of developed land exists across the U.S. today. Over one quarter of this developed space has been converted to impervious cover including rooftops, streets, highways, roads, driveways and parking lots generating high amounts of stormwater runoff that makes its way into receiving waters.
RES helps communities comply with the Total Maximum Daily Load (TMDL) limits on pollutants that affect clean and safe drinking waters. Municipal Separate Storm Sewer System (MS4) Permit Compliance solutions address water quality, flooding, and ecological challenges from excess stormwater runoff -- by using nature as a solution in addition to existing gray infrastructure.
Federal, State, and Local laws regulate BMP inspection and maintenance of existing stormwater management BMP (Best Management Practice) facilities. As rigorous enforcement procedures are steadily gaining approval, owners of these facilities should protect themselves against a penalty, fine, or Notice of Violation (NOV) that can be easily avoided. RES supplies BMP Inspection and Maintenance solutions including annual or biannual BMP inspections of stormwater management (SWM) facilities for compliance with these regulations. With in-house resources including professional engineers, certified E&S inspectors, certified SWM inspectors, and ecological construction crews, we monitor and maintain all types of BMPs for long-term, pro-active compliance with local, State, and Federal regulation.
The RES team’s experience in both the design and construction of SWM structures enables us to provide practical and low maintenance solutions for BMP facilities after construction has ended. For existing SWM BMP facilities, we provide annual inspections, routine maintenance, and large scale retrofit services to ensure proper function and long-term compliance.
RES provides NPDES Inspection services to ensure our clients’ compliance with federal and state regulations regarding point source discharges of pollutants. This includes the National Pollutant Discharge Elimination System (NPDES), as well as state-specific regulation such as the Virginia Pollutant Discharge Elimination System (VPDES), formally known as the Virginia Stormwater Management Program (VSMP).
Once land disturbance is initiated, our NPDES Inspections regularly assess the condition of structural onsite controls, such as silt fencing, inlet protection, sediment basin function, etc., as well as non-structural controls such as hazardous materials housekeeping, training of personnel, placement of portable toilets, and the stabilization of disturbed areas, etc. Our team of Erosion and Sediment (E&S) control/NPDES inspectors, all certified by the Virginia Department of Environmental Quality (DEQ) above minimum requirements, has meticulously distinguished itself from other inspection providers through sincere dedication to a higher level of oversight.
Our response to market demands, innovations including in-the-field printing, and top-notch quality inspections have grown the RES NPDES Inspections program to include projects in Virginia, North Carolina, Maryland, West Virginia, New Jersey, South Carolina, Pennsylvania, Delaware, Florida and the District of Columbia.
Dennis Avenue LID Project
Through its on-call contract with Montgomery County, MD, RES provided construction services to create a series of 10 road side basins/cells designed to collect and filter roadside run-off before being discharged into Sligo Creek. Several of the basins/cells were constructed on Maryland National Capital Parks and Planning Commission (MNCPPC) park property, while others were constructed along the road and in the right of way between the sidewalk and curb, or within the roadway (curb bump outs). The project was designed so that run-off to each of these basins is conveyed through a series of modified storm drain inlets draining directly into each respective basin. Once the stormwater is collected in each basin, it filters through several layers of filter media (mulch, bioretention soil, and stone) and is collected in an underdrain system connecting each of the basins to the existing stormwater infrastructure. Each basin was planted with a variety of native grasses and shrubs. This project combined Infiltration and Filtering Practices, as classified by MDE’s Stormwater Design manual.
Dulles Airport BTU Construction
RES coordinated with the Metropolitan Washington Airports Authority, CH2M Hill, Parsons Management Consultants, The Lane Construction Corporation, and in-house field crews to construct an innovative 28,752 ton SWM control project at Washington Dulles International Airport. RES constructed five (5) dry bioretention basins, or Biological Treatment Units (BTUs), designed to treat stormwater runoff coming from the new fourth runway and associated taxiways at Dulles Airport. Of the five units, BTUs A and I also were constructed to treat runoff from airport operations on the newly-constructed deicing pad. The BTUs at Dulles’ fourth runway were the first of their kind in the U.S. They also were the first in the world to utilize a complex underdrain system, which distributes runoff throughout the BTU’s surface before it is collected and discharged into the surrounding ecosystem.
Emmorton Stormwater Pond
RES was contracted by a commercial storage company to repair a stormwater management pond located on one of their storage unit compounds in Bel Air, MD. RES re-established storage capacity of the pond by performing a principle spillway replacement, dredging the pond basin, and disposing excess sediment off-site. Specific RES tasks included excavation and slope grading, replacement of the failing riser and barrel outfall pipe, and installation of a new clay core in the embankment. RES performed all erosion and sediment control installation, mowed the embankment, and stabilized disturbed areas upon construction completion.
Erosion & Sediment Control Inspections
RES has over 47 individuals on staff who are certified to perform Erosion & Sediment (E&S) control inspections for compliance with stormwater discharge permits. Our team includes inspectors certified by the Virginia Department of Environmental Quality (DEQ) for E&S control and Stormwater Management (SWM). For over 10 years, we have provided stormwater permitting and inspection services to over 400 projects. Standard onsite protocol includes literally walking each site (no drive-through inspections), meeting personally with superintendents to review and clarify findings before departure, conducting all aspects of onsite recordkeeping, and representing our clients during agency visits.
Fountain & Aerator Installation
In conjunction with our SWM pond maintenance program, RES is a certified distributor, installer, and Authorized Service Center for AquaMaster Fountains and Aerators. Our staff includes multiple technicians who have completed training for proper fountain installation and maintenance at AquaMaster headquarters. We regularly install and maintain fountains in residential amenity and commercial stormwater ponds.
Hickory Elementary Stormwater Management Pond Construction
RES performed work at Hickory Elementary School using contracts from both Harford County and Harford County Public Schools. RES’s main tasks for this project were replacing a riser, barrel pipe, and clay core in order to perform the principal spillway replacement. A submerged gravel wetland was installed to help with erosion and sediment controls, along with the installation of rip rap outfall areas from incoming stormwater pipes.
Library Square Permeable Pavement Installation
RES provided construction services for Library Square, a stormwater management project located in downtown Baltimore. Library Square focused on utilizing limited urban space to generate nutrient removal and encourage infiltration of rain water. RES built and installed three micro-bioretention facilities and a large area of permeable pavers. In addition to the functional improvements, hardscape and landscape features including decorative fence, marble stoop seating areas, and plantings were installed to create an aesthetic setting integrated with the surrounding neighborhood.
On-site Printing & Scanning for SWPPPs
RES provides a number of services to protect our clients from the liability associated with the National Pollutant Discharge Elimination System (NPDES), which regulates point source discharges of pollutants. Our Erosion and Sediment (E&S) control inspectors meet personally with each project’s superintendent or program manager to customize a procedure for the site and regularly review inspection results. To ensure the site’s SWPPPs remain the “living document” required by regulations, all RES inspectors are equipped with in-the-field printing, scanning, and internet capabilities.
Stormwater Pollution Prevention Plan (SWPPP) Development
RES has experience assisting clients with all aspects of compliance with Construction General Permits (CGP), or stormwater discharge permits. One of the first steps in our stormwater compliance program is to assist clients in registering for the proper permit to discharge stormwater from an active construction site in its respective state. As part of this process, RES generates a Stormwater Pollution Prevention Plan (SWPPP), customized to each site, which describes the best management practices to minimize the discharge of pollutants from land disturbing activities. Our team has completed over 300 Stormwater Pollution Prevention Plans (SWPPPs) related to residential and commercial development projects.