С»ÆÑ¼ÊÓÆµ County Stormwater Submittal Requirements

The С»ÆÑ¼ÊÓÆµ County Stormwater Hybrid Design Tool is for all stormwater management submittals. Accurate use of this tool ensures compliance with the Neuse Nutrient Strategy (Neuse Rules), the С»ÆÑ¼ÊÓÆµ County UDO and the Falls Lake and Jordan Lake Rules. Tool calculations are based on a combination of the Falls/Jordan Nutrient Accounting Tool developed by the State for nutrient loading and a С»ÆÑ¼ÊÓÆµ County Design Tool previously prepared for С»ÆÑ¼ÊÓÆµ County by Withers and Ravenel (2006) for volume control. The purpose of the tool is to streamline the many different stormwater requirements and facilitate more timely review and approval of stormwater management plans. For each regulatory requirement, С»ÆÑ¼ÊÓÆµ County adheres to design standards readily accepted by the State of North Carolina. Please see the for complete submittal guidance including erosion control, stormwater and flood hazard requirements. Design of stormwater control measures shall be consistent with the State of NC .

Older versions of Excel will require the installation of a compatibility pack from Microsoft to ensure functionality. Please contact Barney Blackburn (919-418-3791) if compatibility pack does not yield desired results.

SNAP Tool

The SNAP (Stormwater Nitrogen and Phosphorus) v4.1 is now required for all residential and commercial site development for Nitrogen and Phosphorus loading. Please see N.C. Department of Environmental Quality .

Stormwater Permit Process

The Stormwater Process in WAKE COUNTY is composed of the following: Presubmittal Meeting, Preliminary Plan Review, Technical Review Committee, Construction Plan Review, Plan Approval, Preconstruction Meeting, Permit Issuance, Permit Completion and Post-Construction Maintenance. In addition, С»ÆÑ¼ÊÓÆµ County administers the erosion and sediment control and floodplain regulations including related plan review and permit issuance.

Prior to initiating a stormwater application, the applicant should be familiar with The С»ÆÑ¼ÊÓÆµ County Unified Development Ordinance, Article 9: Stormwater Management. All applicants must adhere to the С»ÆÑ¼ÊÓÆµ County Joint Erosion Control, Stormwater and Floodplain Application, Subdivision Process and/or Commercial Permit Application in addition to the following submittal requirements:

Submittal Requirements

I. Presubmittal Meeting

Schedule Presubmittal Meeting

Applicants may schedule a presubmittal meeting with the С»ÆÑ¼ÊÓÆµ Watershed staff before any plan submittal process is initiated. С»ÆÑ¼ÊÓÆµ County staff will provide guidance on floodplain management, erosion control and stormwater submittals and site plan design guidance, in coordination with the planning/zoning staff. Applicants should call the Planning Department at 919-856-6221 to schedule a meeting with the County. Applicants shall complete a presubmittal meeting request form and provide staff with the following:

  • Project Name 
  • Contact Information
  • PIN Number
  •  Approximate Disturbed Acreage (if available)
  • Project description
  • Sketch Plan (if available)

II. Preliminary Plan Review

Apply for Preliminary Plan Approval

After the presubmittal meeting, the applicant will submit a preliminary plan review to С»ÆÑ¼ÊÓÆµ County Planning through the Permit Portal. The applicant will receive comments and/or a request for additional information. Once comments are resolved, the applicant shall provide a preliminary subdivision plan or a Commercial Permit Application. Plans requiring Planning Board approval (regular subdivisions, special use permits, planned compliance permits) will be reviewed by the Technical Review Committee (TRC). See С»ÆÑ¼ÊÓÆµ County Planning Policy for fees and submittal requirements.

 Note: Non-residential projects NOT requiring Planning Board approval may proceed to the Construction Plan Process; ***Remember*** zoning approval (land use permit application) is required prior to receiving construction plan approval.

The Preliminary Plan submittal for stormwater should include the following:

  • Cover Letter

  • Hybrid Stormwater Tool (Site Data Sheet, Drainage Area Worksheets, Site Summary, and any other sheets available) 

  •  (choose appropriate regulatory Watershed)

  • Site Plan including proposed BMP locations

  • Drainage Area Map

  • Copy of USGS Quad Map and С»ÆÑ¼ÊÓÆµ County Soil Survey map with delineated project limits

  • Flood Hazard Area impacts

  • Additional calculations as needed

Applicants shall notify County staff of changes to an approved design layout or stormwater management prior to submitting Construction plans.

III. Construction Plan Review

Apply for Construction Plan Approval

Following the Preliminary Plan Approval and Planning Board Approval, regular subdivisions and non-residential development and redvelopment projects with greater than ½-acre of disturbance are required to obtain a Stormwater Permit through С»ÆÑ¼ÊÓÆµ County. Development with greater than 1 acre of disturbance shall also obtain a Land Disturbance Permit through С»ÆÑ¼ÊÓÆµ County.

The applicant shall submit the following to the С»ÆÑ¼ÊÓÆµ County Permit Portal

For subdivisions, you may upload your stormwater and erosion control documents with your Planning application. 

For non-residential projects, upload your stormwater and erosion control documents through the Watershed Management Permit Portal, 

  • Cover letter stating the purpose of the submission
  •  and review fees
  • Stormwater Design Tool (All sheets); digital submittal required (.xls): SNAP or Hybrid
  • Construction drawings 
  • Drainage Area Map 
  • Copy of USGS Quad map and С»ÆÑ¼ÊÓÆµ County Soil Survey with delineated project limits 
  • All supporting calculation documentation 
  • Erosion Control requirements (site plan, Financial Responsibility Form)
  • Flood Studies / Flood Hazard Soil Redelineations
  • Buffer Impacts / stream delineations

С»ÆÑ¼ÊÓÆµ County will provide review comments or plan approval directly to the applicant. Applicant should adhere to the fee schedule for all resubmittals.

IV. State Stormwater Permit

Obtain NCG01 Permit Coverage

Following approval of construction drawings by С»ÆÑ¼ÊÓÆµ County Environmental Services and Planning / Zoning, you may apply for your . You will apply online with the through the NC DEQ website. You will upload a copy of С»ÆÑ¼ÊÓÆµ County Land Disturbance Approval Letter.  The annual fee is $127. 

Upload the NCG01 Certificate of Coverage to the С»ÆÑ¼ÊÓÆµ County Permit Portal. Add the document to your land disturbance permit. 

V. Preconstruction Meeting

Request Preconstruction Meeting

After construction plan approval, schedule a preconstruction meeting. You will receive your Land Disturbance Permit at this meeting.

Contact watershed management at 919-856-7436 to request a preconstruction meeting. Prior to this meeting you will need to:

  1. Upload the NCG01 certificate of coverage (see above)
  2. Pay permit fees. You may pay through the Permit Portal or by certified check to С»ÆÑ¼ÊÓÆµ County; office hours are M-F, 8:30 a.m.–5 p.m.; Water Quality, 7th floor,С»ÆÑ¼ÊÓÆµ County Office Building
  3. Submit 3 copies of the site plans to the office 5 days prior to the meeting for review and signature (1 full size and 2 half size)

Applicant should bring the following to the preconstruction meeting (at this time most meetings are held in the field).

  • Owner / Applicant/ Financially responsible party 
  • Site contractor(s) 
  • Design Engineer 

VI. Final Plat or CO

Conditions of Approval

The following conditions of approval (as noted on construction plan stormwater approval letter) shall be provided to С»ÆÑ¼ÊÓÆµ County for review prior to recordation of the final plat for Residential Projects OR prior to the Certificate of Occupancy (CO) for Non-Residential Projects.

Conditions of Approval may include: Stormwater Agreement, Operation & Maintenance Plan, Engineer’s Certification, As-built Survey, Covenants, Performance Guarantee, etc. See Planning Department for Review Procedures for submittal requirements for final plat approval and final plat recordation. Note that Stormwater's Final Plat checklist is supplemental to Planning's plat checklist.  

Final Plat Approval

Projects with stormwater devices must provide as built plans and maintenance documents prior to final plat approval or CO or post a performance guarantee.

Final plats shall show all items required by the , which may include but aren't limited to:

  • Stormwater device(s) and maintenance/access easements and indicate the responsible party for maintenance
  • Covenants
  • Perpetuity Statement –" Maximum Impervious Area Square Footage on each Individual Lot will be Stringently Enforced with no Exceptions into Perpetuity"
  • Reference the maintenance manual and maintenance agreement for the Stormwater BMP by book and page numbers
  • Performance Guarantee disclosure (if one has been posted)
  • Buffer location and notes
  • Floodplain location and notes.

Maintenance documents shall be recorded with the С»ÆÑ¼ÊÓÆµ County Register of Deeds.

If the project expires before the plat is recorded, the stormwater permit becomes null and void.

If there are stormwater devices, please provide the as-built package at least 30 days prior to request for CO. The as-built package may include but aren't limited to:

  • Stormwater Agreement
  • Operation & Maintenance Plan 
    • Option1: submit the County's Maintenance Agreement and a Custom O&M Plan, or
    • Option 2: submit the County version of the State's EZ O&M form with a notarized Cover Page
  • Engineer’s Certification
  • As-built Survey
  • Performance Guarantee (if required) 

Maintenance documents and easements must be recorded with the С»ÆÑ¼ÊÓÆµ County Register of Deeds.

VII. Permit Completion

Construction permits shall remain open until all stormwater improvements (conveyances and SCMs) are completed including as built approval and release of performance guarantee. In addition, the site must be fully stabilized with permanent vegetation, mulch and/or developed areas. 

Failure to renew erosion control permits or complete stormwater improvement are considered violations of the County's Unified Development Ordinance and may be subject to financial penalties. 

***New Development Rules in Falls and Jordan Lake Basins***

Background

Both Falls Lake and Jordan Lake are considered polluted due to excessive nutrient inputs including stormwater runoff. As a result, both lakes have been designated as Nutrient Sensitive Waters (NSW) by the North Carolina Division of Water Quality (DWQ). The Falls Lake and Jordan Lake rules passed by the State require local governments to adopt stormwater standards for new development.  

The County adopted rules for each watershed by ordinance change in 2012. However, the State Legislature has placed the Jordan Lake Rules on hold.  

Nutrient Standards

Stormwater runoff from new development in Jordan and Falls Lake must meet both nitrogen and phosphorus limits. Nutrient reduction requirements for the Falls Lake and Jordan Lake watersheds differ slightly. Nitrogen and phosphorus limits depend on which watershed the development is located. The following table differentiates nutrient loading requirements by nutrient management strategy. Jordan Lake Watershed is divided into two regulatory jurisdictions â€“ Upper New Hope (UNH) and Lower New Hope (LNH). 

Standard С»ÆÑ¼ÊÓÆµ County Neuse NMS Falls Jordan
Nitrogen (lbs/ac/yr) n/a 3.6 2.2

2.2 (UNH) 

4.4 (LNH)  

Phosphorus (lbs/ac.yr) n/a n/a 0.33

0.82 (UNH) 

0.78 (LNH)  

Permit Applicability

Residential:  All Regular Subdivisions and Minor Subdivisions >15% Impervious 

Non-residential:  1/2-Acre of disturbance or greater

Residential: 1 Acre of disturbance or greater

Non-residential:  1/2-Acre of disturbance or greater

Residential:  1/2-Acre of disturbance or greater

Non-residential: 12,000 SF of disturbance or greater

Residential: 1 Acre of disturbance or greater

Non-residential:  1/2-Acre of disturbance or greater

The Neuse Rules are currently applied county-wide. All developments must meet state, local and federal regulations. If these regulations are inconsistent, the more restrictive standard governs.

 

Links

Questions?

For more information about Stormwater Requirements, contact the Plan Review Staff.