820064_Sludge Survey (Testing Dates)_20191018

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RECEIVED
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DEQ!DWR
ROY COOPER
Governor ,
MICHAEL S.REGAN OCT 232019
Secretary
LINDA CULPEPPER NORTH CAROLINA Director Environmental Quality WQROS
OROS
FAYETTEVILLEPEG(OWALOFFECE
October 18, 2019
Timothy F Lindsay
McGee Church Road Farm
2560 Five Bridge.Rd
Clinton,NC 28328.
Subject: Sludge Survey Testing Dates
Certificate of Coverage No. AWS820064
McGee Church Road Farm
Animal Waste Management System
Sampson.County
Dear Timothy F Lindsay:
•
The Division of Water Resources (Division)received your sludge survey information on
September 20, 2019. With the survey results, you requested an extension of the sludge survey
requirement for lagoon structure "1" at the McGee Church Road Farm facility. Due to the
amount of treatment volume available, and the rate of sludge accumulation for the lagoon, the
Division agrees that a sludge survey is not needed until,December 31,2024.
The next sludge survey for lagoon structure"1" at McGee Church Road Farm should be:
performed before December 31,2024.Please retain this letter and keep it with your:farm records
for reference.
Please call me at(919) 707-3705 if you have any questions.
Sincerely, .
Heath C. Robinson'
Animal Feeding Operations Program
cc: . Fayetteville Regional_Office,SWater Quality Regional Operations Section
Permit File AWS820064
North Carolina Department of Environmental Quality I Division of Water Resources
D E Q 512 North Salisbury Street i 1636 Mall service Center I Raleigh,North Carolina 27699-1636
W..
Ospulneal
a + s\ / 919.707.9000

ii •
Sludge Survey Evaluation Form. Today's Date 10/18/2019
Facility# 820064
Owner: McGee Church Rd,LLC
Lagoon:ID ..
Sludge Survey.Received: - • 9/20/2019
Sludge Survey Performed: • 8/8/2019
Sludge Depth(Row 0):(ft) 4.1
Existing Treatment Depth(Row P): (ft) 6.60
Start Date: 1/1/1980
Facility age at time:of survey:(yr) • 40
Average Sludge Accumulation.(ft/yr): ., : 0:10 ; :
Requested Extension: (yr) 5
Requested Due.Date. 2024
Sludge Accumulation during extension period: (ft): 0.52
Treatment Depth Available after Extension: (ft) 6:08
Sludge level OK? YES'-
Ratio Estimates Based on Depth EXISTING:_ EXEMPTION
Ratio of Sludge layer to total'trmt depth 0:38 0.43. ;
Ratio of.Sludge depth OK? .
. EXISTING EXEMPTION
Average Sludge layer thickness(T) 41 4.62
Depth of the lagoon from top of bank to bottom soil surface(D) 14.3 14.3
Slope=Horizontal/vertical side slope(S) 2.5 2.5
Length at the top of inside bank(L) 620 620
Width at the top inside slope(W) _ 190 . 190
Thickness of existing liquid treatment zone(I') 6:60 6.08
Length at midpoint of sludge layer(Lm)=L-2S(D-(T/2)) • 558:75 560.04
Width at midpoint of sludge layer(Wm)=W-2S(D-(T/2)) 128.75 130.04
Volume of sludge(Vs)=Lm*Wm*T 294950.16 . 336278.76
Volume in.gallons.(Vsg)=Vs*7.481 2206522:12 2515365.16
Thickness of total treatment zone(Z)=T+Y 10.70 10.70 '
Length at midpoint of total treatment zone(Lz)=L-2(S)(D-(Z/2)) 575.25 575.25
Width at midpoint of total treatment zone(Wz)=W-2(S)(D-(Z/2)) 145.25 145.25
Volume of total.treatment zone(Vz)=Lz*Wz*Z - 894039.17 • :.894039.17
: Ratio(R)of sludge layer volume to total trmt volume . . 0.330 . . 0:376
Sludge Volume Ratio:OK? : :`YES
Maximum extension until end of permit cycle
Next survey to be done:(calendar yr)... 12/31/2024
Notification letter mailed:. 10/18/2019