Stormwater Best Management Practices (BMPs) are implemented as a way of treating or limiting pollutants and other damaging effects of stormwater runoff in order to meet legislative and North Carolina Administrative Code requirements. There are two major categories of BMPs: nonstructural and structural. Non-structural BMPs are typically passive or programmatic and tend to be source control or pollution prevention BMPs that reduce pollution in runoff by reducing the opportunity for the stormwater runoff to be exposed to the pollutants. Structural BMPs refer to physical structures designed to remove pollutants from stormwater runoff, reduce downstream erosion, provide flood control, and promote groundwater recharge. Structural BMPs typically require engineering design and engineered construction.

Information on Structural BMPs

• Structural BMP Map: all approved and installed structural BMPs in Apex

Structural BMP O&M Agreements: Each structural BMP in Apex is required to submit an Operation and Maintenance (O&M) agreement to the Town prior to final approval.

Click on the appropriate link below to view the Operation and Maintenance (O&M) Agreement for the applicable type of BMP. An O&M Agreement is a required submittal to the Town prior to Final Plat/Certificate of Occupancy (CO). Please see the Structural BMP Construction Sequence for more information on what else is required prior to Final Plat/CO.

• Bioretention O&M Agreement
• Dry Detention O&M Agreement
• Filter Strip & Level Spreader O&M Agreement
• Grassed Swale O&M Agreement
• Hydrodynamic Separator O&M Agreement
• Sand Filter O&M Agreement
• Underground Detention O&M Agreement
• Wet Detention O&M Agreement
• Wetlands O&M Agreement

Structural BMP Inspection Reports: Beginning in April 2008, all BMP owners are responsible for having all BMPs on their property inspected by a professional on an annual basis. The Inspection Reports link will open a page listing all inspection forms available for download. All BMP owners should have received a general letter stating the new requirements in March 2008 and a 30-day notice will be sent out as appropriate based on the inspection due date. Please contact Public Works at 249-3427 for more information.

Per the annual inspection requirements set forth in Section 6.1.12(h) of the Town of Apex Unified Development Ordinance (UDO), property owners are responsible for having all BMPs on the property inspected on an annual basis. Recent revisions to the UDO on February 19, 2008 require this annual inspection to be performed by a qualified registered North Carolina professional engineer, surveyor, or landscape architect performing services only in their area of competence. The new UDO amendments were approved to ensure that the Town implemented a mechanism for proper long-term operation and maintenance of structural BMPs per the permitting requirements set forth in the NPDES Phase II permit.

Click on the appropriate link below to view the Inspection Report for the specific type of BMP you need. You will need a cover sheet for each Inspection Report submittal.

• Structural BMP Inspection Report Cover Sheet
• Wet Pond BMP Inspection Report
• Bioretention Area BMP Inspection Report
• Wetlands BMP Inspection Report
• Dry Pond BMP Inspection Report
• Grassed Swale BMP Inspection Report
• Sand Filter BMP Inspection Report
• Level Spreader BMP Inspection Report
• Hydrodynamic Separator BMP Inspection Report
• Underground Detention BMP Inspection Report

Local BMP Inspectors: list of local BMP inspectors

Watershed Protection Overlay District Map: The Primary Watershed Protection District (red area) is land identified by the State as water supply watershed protection areas.  The Secondary Watershed Protection District (orange area) is all other land within the Town and its Extra Territorial Jurisdiction (ETJ).

Structural BMP Construction Sequence: specific information for developers on what is required for BMPs prior to Final Plat/Certificate of Occupancy