Letter to Industry
Land Development Services
12055 Government Center Parkway
703-324-1780, TTY 711
January 24, 2003
New Requirement Relating to Erosion
and Sediment Control Plans
Background: Prior to engaging in land-disturbing activities, submission of an erosion and sediment control plan for review and approval is required in accordance with Chapter 104, Erosion and Sedimentation Control of the Code of the County of Fairfax, Virginia and Chapter 11 of the Fairfax County Public Facilities Manual. It has been determined that incorporation of a more detailed description of proposed development sites into erosion and sediment control plans is necessary to enhance the effectiveness and efficiency of our efforts to minimize the adverse impacts of land-disturbing activities. Thus, submitting professionals will be asked to provide additional information that will assist in identifying sites with the greatest potential to cause offsite damage from erosion and sedimentation (E&S) during land-disturbing. Identification of critical sites during the design phase will assist site reviewers in their evaluation of the proposed measures to control E&S, and will assist site inspectors in identifying critical areas for erosion and sediment control so that resources can be assigned where they are most needed. In addition, identifying critical sites in the design process and ensuring that adequate controls are incorporated on the approved plan should result in fewer required changes during construction and reduce associated project delays and cost increases.
To facilitate the incorporation of the additional information, County staff developed a worksheet to be completed by the submitting professional and incorporated into the E&S portion of plans proposing land-disturbing activity. The worksheet consists of an evaluation of a series of criteria relating to E&S and their potential to contribute to offsite damage. After evaluating the individual criteria, an overall rating is calculated to determine the environmental priority of the site.
Priority Rating Form for E&S Control: Beginning March 3, 2003, all site plans, subdivision plans, minor site plans, waiver condition plans, rough grading plans, and non-bonded (infill) grading plans, submitted to the County for review and approval must incorporate a completed Fairfax County Priority Rating Form for E&S Control in the erosion and sediment control plan(s). Submittal of the form with bonded grading plans is not required, as the form provided on the subdivision construction plan will provide the necessary information for the site.
The block entitled "Design Engineer" identified at the top of the form should contain the name of the design engineer who completed the form. The design engineer should complete the entire form, with the exception of the area that is reserved for Fairfax County use, determine the total/overall rating and indicate the priority with an "X" on the blank next to the appropriate designation of high, medium or low.
A brief description of each of the categories on the worksheet can be found in a document entitled "Descriptions for Fairfax County Priority Rating Form for E&S Control," and a list of the "K" values for the soils typically found in Fairfax County can be found in the document entitled "Pertinent Information for Fairfax County Soils." A copy of the Fairfax County Priority Rating Form for E&S Control and the associated descriptions are enclosed. Additional copies of the rating form and descriptions, and the table entitled "Pertinent Information for Fairfax County Soils" can be obtained at the Plan and Document Control counter located on the 5th floor at 12055 Government Center Parkway, Fairfax, Virginia. All three documents are scheduled to be incorporated on the County's website in February 2003.
If you have any questions about the procedures described above, please contact Craig Carinci, Director, Environmental and Facilities Inspections Division at 703-324-1950, TTY 711.
For more information and to view the form please see the E&S Description and Form (PDF).