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HomeMy WebLinkAboutNCG551818_Fact Sheet_20240807NCDEQ / DWR / NPDES SINGLE-FAMILY RESIDENCE FACT SHEET NPDES Permit NCG551818 Kate Shadwell / Compliance & Expedited Permitting Unit / kate.shadwellgdeq.nc.gov / July 2024 FACILITY INFORMATION Applicant / Facility Name Doug Waggoner /Waggoner Residence Applicant / Mailing Address 330 Olive Branch Rd. Durham, NC 27703 c/o Doug Waggoner Facility Physical Address 330 Olive Branch Rd, Durham, NC 27703 Proposed Flow 360 GPD (3-bedroom) Approximate available area 0.90 acres Type of Waste 100% Domestic, Single -Family Residence County Durham I Regional Office RRO STREAM CHARACTERISTICS Receiving Stream UT to Lick Creek Stream Classification WS-IV; NSW Stream Segment 27-11-(0.5) Outfall Lat. 350 58' 04.9" N 7Q 10 - Summer (cfs) Assumed zero flow Outfall Long. 780 47' 05.6" W 7Q 10 - Winter (cfs) Assumed zero flow Drainage basin Neuse 30Q2 (cfs) Assumed zero flow Subbasin 03-04-01 Average Flow (cfs) Assumed zero flow HUC 030202010502 Application Summary Applicant is seeking coverage under the NCG550000 general permit for discharge of their 100% domestic waste. The property has a 3-bedroom house with a proposed flow of 360 GPD (120 GPD per bedroom). The property has an existing permitted failing sand filter system. Durham County Public Health denied their permit for repair application due to soil wetness, unsuitable soil depth and setbacks restricting availability of space. The proposed discharge location is to an unnamed tributary on property that eventually reaches Lick Creek. The proposed system will not expand from the existing 3-Bedroom system, keeping the design flow at 360 GPD. Proposed Improvements and Construction The existing system will be replaced with the following treatment system: • Septic tank with effluent filter • Recirculation Pump Chamber • Discharge Pump Chamber • AdvanTex AX-20 RT Pod • UV Disinfection • Discharge point with Rip -Rap Regional Office Staff Report Jane Bernard of the Raleigh Regional Office does not object to upgrading the existing system. Fact Sheet for New Permit/COC July 2024 — NPDES Permit NCG551818 - Page 1 Alternatives Summary (EAA): Connection to sewer system • The property is not currently within the Durham County's coverage area. The closest sewer line is approximately 1,100 linear ft from the property, and there are no immediate plans to extend sewer to the property. Estimated cost to connect to existing sewer ($1501ft) is $165,000. Ground (subsurface) Adsorption • Durham County Public Health indicated that the property is unsuitable for ground absorption septic system due to unsuitable soil wetness conditions, and lack of available space due to setback constraints. • Based on a soil evaluation by Chris McGhee, the property is unsuitable for a ground absorption septic system due to unsuitable soil wetness conditions, insufficient available space, and unsuitable soil depth. While there is sufficient space for a subsurface drip field (14,625 sq ft), soil conditions are not suitable for this system. Non -Discharge (Drip & Spray) • The applicant states that there is not sufficient space for a non -discharge surface system (2,488 sq ft). If there was sufficient space, unsuitable soil conditions do not allow for non -discharge surface system. Reclaimed Water The applicant states that the existing residential plumbing system does not allow for reuse. While there may be sufficient space for a reuse system, it would be cost prohibitive for a single-family residence. Availability of Land • The applicant states that there is 1 vacant lot South of the property. They state that the price reflected is an estimate for the land, and that it does not reflect the value of the single family residences on property. o 0.55 Acre plot of land - $3,877 Local Government Review • The applicant submitted the form to the Durham County and the City of Durham, however no completed forms were included in the application. COST ANALYSIS System Type Install Cost Total Cost over 20 years Subsurface Drip $46,150 $70,469 Non -Discharge $63,350 $86,326 Reclaimed Water $75,150 $102,450 Sewer Line Hookup $165,000 Discharge $34,250 $53,763 Fact Sheet for New Permit/COC July 2024 — NPDES Permit NCG551818 - Page 2