820058_Sludge Survey (Testing Dates)_20200127

s.. y ��.�,� .� RECEIVED
ROY COOPER D I. R. ..
Governor
MICNAEL S.REGAN . �.; � l: JAN 2.9 20?0
Secretary
LINDA CULPEPPER : NORTH CAROLINA. .
Director Environmental Quality WORDS . .
FAYE TEvii I PP ;ih .J41 OFFPCF.
January27, 2020
B &W Hog.Fartris Inc.'
Barefoot Nursery
3340 Giddensville Rd . .
Faison,:NC:28341
Subject: Sludge Survey Testing Dates.
Certificate of Coverage No: AWS820058
Barefoot Nursery.
Animal Waste Management System
;. . . Sampson County
Dear.B &.W Hog Farms Inc.'.
The Division of Water Resources.(Division)received your sludge survey information on January.
14, 2020. With the survey results,;you requested an.extension of the sludge survey,requirement ;
for Lagoon#1.at the.Barefoot Nursery 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#1 lat Barefoot Nursery 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 have any questions:
Sincerely,
Heath: at C. Robinson •
Animal Feeding Operations Program
cc: . [`Fayetteville Regional affiWjWater Quality Regional Operations Section
-Permit File'AWS820058
•
North Carolina Departmentof Environmental Quality i Division of Water Resources
D E Q S12 North Salisbury Street 1 1636 Mail Service Center Raleigh;North Carolina 27699-1636
NW O 9 .. ..
19.707.9000

Sludge.Survey, Evaluation Form. Today's Date 1/27/2020
Facility.# • 820058
Owner: B&W Hog Farms Inc
Lagoon:ID Lagoon 1 .:
Sludge Survey Received: 1/14/2020
Sludge Survey Performed: :: 12/29/2019
Sludge:Depth(Row O):(ft) • : 1.3
Existing Treatment Depth(Row P):-(ft) V 5.50
Start Date:. : . . .. 04/29/93
Facility age at time of survey:(yr) 27 :
Average Sludge Accumulation.(ft/yr): : :0.05•
Requested Extension:.(yr) 5
Requested Due:Date. . . _ 2024
Sludge Accumulation during extension period: (ft)" . " • : • 0:24 .
Treatment Depth Available after Extension: (ft) • 5.26 .
Sludge level OK? .. . . .. • . . : . ''YES � •
Ratio Estimates Based on Depth : EXISTING.' EXEMPTION
Ratio of Sludge layer to total trmt depth • . 0.19 0.23
Ratio of:Sludge depth OK? :. y_.
._ . .
EX
ISTING .•. EXEMPTION
Average Sludge layer thickness(T) :- •:• •V : .1.3 : 1.54
Depth of the lagoon from top of bank to bottom soil surface(D). na na
Slope=Horizontallvertical side slope(S) •• na na_ • • •
Length at the top of inside batik(L) na na
Width at the top inside slope(W) na na
Thickness of existing liquid treatment zone(Y) : • . . : 5.50 5.26
Length at midpoint of sludge layer(Lm)=L-2S(D-(T/2)) #VALUE! #VALUE!
Width at midpoint of sludge layer(Wm)=W 2S(D-(T/2)) #VALUE! #VALUE!
Volume of sludge(Vs)=Lm*Win*T : #VALUE! #VALUE!
Volume in gallons:(Vsg)=Vs*7.481 #VALUE! #VALUE!
Thickness of total treatment zone(Z)=T+Y 6.80 - . 6.80
Length at midpoint:of total treatment zone(Lz)=L-2(S)(D-(Z/2)). #VALUE! #VALUE!
Widtli at midpoint of total treatment zone(Wz)=W 2(S)(D-(Z/2)) #VALUE! • #VALUE!
Volume of total treatment zone(Vz)=Lz*Wz*Z . , #VALUE! .. . #VALUE!.. ..
Ratio(R)of sludge layer volume to total trmt volume :#VALUE! . . #VALUE!
Sludge Volume Ratio:OK?
Maximum extension until end of permit cycle
Next-survey to be done`:(calendar yr). . 12/31/2024
Notification letter.mailed: : • : 1/27/2020