820080_Permit Renewal Application 2019_20190410

State of North Carolina
Department of Environmental Quality
Division of Water Resources
Animal Waste Management Systems
Request for Certification of Coverage
Facility Currently covered by an Expiring Sate Non -Discharge General Permit
On September 30, 2019, the, North Carolina State Non-Discbarge General Permits for Animal Waste Management Systems will
expire. As required by these permits, facilities that have been issued Certificates of Coverage to operate under these State
Non -Discharge General Permits must apply for renewal at least 180 days prior to their expiration date. Therefore, all applications
must be received by the Division of Water Resources by no later than April 3, 2019,
Please do not leave any question unanswered. Please verify all information and make any necessary corrections below.
Application must be signed and dated by the Permittee.
1. Farm Number: 82-0080 Certificate Of Coverage Number: AWS820080
2. Facility Name: James NUIor Farm. James F. Naylor Farm, Robert Naylor #3
3. Landowner's Name (same as on die Waste Management Plan): Robert F Naylo
4. Landowner's Mailing Address: 2988 Church Rd
City: Clinton State: NC
Telephone Number: 910-564-6811 Ext. E-mail:
5. Facility's Physical Address: 3191 Church Rd
,City: Clinton State:
6. County where Facility is located: Sampson
7. Farm Manager's Name (if different from Landowner):
8. Farm Manager's telephone number (include area code):
9. Integrator's Name (if there is not an Integrator, write "None"):
10. Operator Name (OIC): Robert F. Naylor
11. Lessee's Name (if there is not a Lessee, write "None"):
12. Indicate animal operation type and number:
Current Permit: Operations Type
Swine - Feeder to Finish
Operation Types:
NC
Robert F Nayl
910-564-6811 Ext.
MgMhy-Brown LLC
Phone No.: 910-564-6811
Allowable Count
7,985
Zip: 28328-0288
Zip: 28328
OIC #: 18416
Swine
Cattle
Dry Poultr
Other Types
Wean to Finish
Dairy Calf
Non Laying Chickens
Horses - Horses
Wean to Feeder
Dairy Heifer
Laying Chickens
Horses - Other
Farrow to Finish
Milk Cow
Pullers
Sheep- Sheep
Feeder to Finish
Dry Cow
Turkeys
Sheep - Other
Farrow to Wean
Beef Stocker Calf
Turkey Pullet
Farrow to Feeder
Beef Feeder
Boar/Stud
BeefBroad Cow
Wet Poultry
Gilts
Other
Non Laying Pullet
Other
Layers
OF
.1 1-CEMINCU2
;A P0 0 3 2019'
so*n

13. Waste Treatment and Storage Lagoons (Verify the following information is accurate and complete- Make all necessary
corrections and provide missing data.)
Structure
Name
Estimated
Date
Built
Liner Type
(Clay, Synthetic,
Unknown)
Capacity
(Cubic Feet)
Estimated
Surface Area
(Square Feet)
Design Freeboard
"Redline"
(Inches)
1
49,571.00
/170
2
46,783.00
19.00
3
15,028.00
/1?
4
/192
87,120.00
/7'� i'+8
7
Mail one (1) copy of the Cerdfled Animal Waste Management Plan (CAWMP) with this completed and signed application
as required by NC General Statutes 143-215.10C(d) to the address below.
The CAWMP must include the following components:
1 . The most recent Waste Utilization Plan (WUP), signed by the owner and a certified technical specialist, containing:
a. The method by which waste is applied to the disposal fields (e.g. irrigation, injection, etc.)
b. A map of every field used for land application (for example: irrigation map)
c. The soil series present on every land application field
d. The crops grown on every land application field
e. The Realistic Yield Expectation (RYE) for every crop shown in the WUP
f The maximum PAN to be applied to every land application field
g. The waste application windows for every crop utiUed in the WUP
h. The required NRCS Standard specifications
2. A site map/schematic
3. Emergency Action Plan
4. Insect Control Checklist with chosen best management practices noted
5. Odor Control Checklist with chosen best management practices noted
6. Mortality Control Checklist with selected method noted - Use the enclosed updated Mortality Control Checklist
7. LagoonJstorage pond capacity documentation (design, calculations, etc.) Please be sure the above table is accurate and
complete. Also provide any site evaluations, wetland determinations, or hazard classifications that may be applicable to
your facility.
8. Operation and Maintenance Plan
If your CAV41%,D includes any components not shown on this list, please include the additional components with your submittal
(e.g. composting, digesters, waste transfers, etc.)
As a second option to mailing paper copies of the application package, you can scan and email one signed copy of the
application and all the CAWMP items above to: 201OPerm![e-mail]

I attest that this application has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that,
if all required parts of this application are not completed and that if all required supporting information and attachments are not
included, this application package will be returned to me as incomplete.
Note: In accordance with NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement,
representation, or certification in any application may be subject to civil penalties up to $25,000 per violation. (18 U.S.C.
Section 1001 provides a punishment by a fine of not more than $10,000 or imprisonment of not more than 5 years, or both for
a similar offense.)
Printed Name of Signing Official (Landowner, of if multiple Landowners all landowners should sign, If Landowner is a
corporation, signature should be by a principal executive officer of the corporation):
Narrie: P
A
?� Title:
Date: zz & .9
Signature:
Name:
Title:
Signature: — Date:
Name:
Signature: -
Title:
Date:
THE COMPLETED APPLICATION SHOULD BE SENT TO THE FOLLOWING ADDRESS:
NCDEQ-DWR
Animal Feeding Operations Program
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
Telephone number: [phone]
E-mail: [e-mail]
FORM: RENEWAL -STATE GENERAL 02/2019

Nutrient Management Plan For Animal Waste Utilization
04-04-2007
This plan has been prepared for:
Robert Naylor Hog Farms
Robert Naylor
3189 Church Rd
Clinton, NC 28328
[phone]
This plan has been developed by:
Greer Moore
Clear Run Farms Consulting Services
PO Box 338
Barrells, 28444
(9171-4493
Signature
Type of Plan: Nitrogen Only with Manure only
Owner/Manager/Producer Agreement
I (we) understand and agree to the specifications and the Operation and maintenance
Procedures established in this nutrient management plan which includes an animal
waste utilization plan for the farm named above. I have read and ulkderStand the
Required Specifications concerning animal waste management that are included with
this plan.
Signature (owner)
Date
Signature (manager or Produce,) ----------
Date
This plan meets the minimum standards and specifications of the U.S. Department of
Agriculture - Natural Resources C#servation Service or the standard of practices
adopted by the Soil and Water.C#servation Commission.
Plan Approved BY:
Technical Specialist
4ate�
295567 Database Version 3.1 Date Printed- 04-04-2007 Cover Page I

Nutrients applied in accordance with this plan will be supplied from the
following source(s):
Commercial Fertilizer is not included in this plan.
Note: In source ID. S means standard source. U means user detined source.
295567 Database Version 3.1 Date Printed: 04-04-2007 Source Page I of I

Narrative
Mr. Naylor has the option or planting a summer annual / winter annual rotation in any of his row crop
fields. SA / WA would be for graze and rates would be as follows:
Winter Annual Graze 75 lbs. N / acre, however if WA follows soybeans, then only 50lbs of N per acre
can be given. If a WA7i'splanted and then turned under (not harvested by graze or cu—tting) then only 30
lbs. of N can be allowed per acre on the WA and the 30 lbs. must be deducted from next crops starting
PAN rate.
Summer Annual rates would be 175 lbs. / acre (for graze).
Primarily Mr. Naylor would only be running a WA/SA rotation in Field #3 (5.82 acres), however he does
have the option to rotate row crops in any of the fields in the NUP listed for row crops.
Greer Moore
Private Technical Specialist
4/04/07
*Bermuda Pasture PAN rates were grand -fathered from prior NUP (1/29/03).
Sl-
NO
295567 Database Version 3.1 Date Printed: 04-04-2007 Narrative Page I of I

The Waste Utilization table shown below summarizes the waste utilization plan for this operation. This plan provides an estimate of t e num�ber of acres of
cropland needed to use the nutrients being produced. The plan requires consideration of the realistic yields of the crops to be grown, their nutrient requirements,
and proper timing of applications to maximize nutrient uptake.
This table provides an estimate of the amount of nitrogen required by the crop being grown and an estimate of the nitrogen amount being supplied by manure
other by-products, commercial fertilizer and residual from previous crops. An estimate of the quantity of solid and liquid waste that will be applied on each field
order to supply the indicated quantity of nitrogen from each source is also included. A balance of the total manure produced and the total manure applied is
included in the table to ensure that the plan adequately provides for the utilization of the manure generated by the operation.
Waste Utilization Table
�Ource
Toial
Use.
Tract
Field
11)
1 Soil Series
Acres
Acres Crop
RN
I
S7
Wagram
8.21
8.21 Small Grain 0,erse,d
RN
I
S7
Wagram
8.21
8.21 Hybrid Bcrmudagrass Pasture
RN
10
-
S7
Blanton
0' a
6.95
6.95 Small Grain Overseed
RN
10
-
S7
Blanton
6.95
6.95 Hybrid Bermudagraw Pasture
RN
2
1 S7
Norfolk
. -
10.32
10.32 Corn, Grain
RN
2
S7
Norfolk
10.32
10.321Wheat Grain
RN
3
S7
Nordfolk
5.82
5.821com, Grain
RN
3
S7
Norfolk
5.82
5.82 Wheat, Grain
RN
4
S7
_L-
13
10.78
10.78 Small Grain Overseed
RN
4
S7
Wagram
10.78
1038 Hybrid Bermudagrass Pasture
RN
5
S7
Lynchburg
8.34
8.341 Corn, Grain
RN
5
S7
Lynchburg
9.34
8.34 Wheat, Grain
RN
7
S7
Wagramrg
u
3.21
3.21 Small Grain Overseed
RN
7
S7
W.'..
agrant
3.21
3.211 Hybrid Betmudagrass Pasture
RN
Wagram
47.90
47.90 Corn, Grain
RN
Wagram
47.90
47.90 Wheat, Grain
Narcgen Uomm
Res.
Manure
Liquid
Solid
Liquid
Solid
PA
Fort.
ObeA)
PA
ManureA Manure
Manure
Manure
Nutrient
Nutrirnt
Nutrient
pplied
Applied
Applied
Applied
RcqId
Applied
Applied
(acre)
(acre)
(Field)
(Field)
(lbsZA)
Obs/A)
0 b rdA)
Applic.
Appfic.
10-00
RYE
. Pbriod
N
N
N
Method
N
gal/A
Tons
1000 gals
tons
1.0 Tons
10/1-3/31
so
0
0
Irrig.
5C
19.97
O.Oc
163.97
0.01
5.5 Tons
3/1-9/30
*235
0
0
Irrig.
235
93.87
0.00
770.66
0.01
1.0 Tons
10/1-3/31
so
0
0
Iffig.
50
19.97
0.00
138.81
0.01
4.5 Tons]
i 311-9/30
*190
0
190
75.891
0.
527.46
0.01
115 bu.
2/15-6/30
*144
0
20
Irrig.
124
49.531
0.0(
511.161
O.Of
60 bu.
911-4130
*144
0
0
Iffig.
72
28.76
G.00
296.80
0.01
115 bu.
2/15-6/30
*144
0
20 1
Mg.
1241
49.53
0.00
288.27
0.0(
60 bu.
9114/30
*144
0
0
Mg.
72
28.761
0.0(
167.30
0.01
::1.0 T ons
10/1-3/31
50
0
0
Mg.
so
19-97
0.0(
215.30.
0.0(
5.5 Tons
3/1-9/30
*235
0
0
Irrig.
235
93.87
O.00
1,011.90
0.01
125 bu.
2/15-6/30
*156
0
20
Irrig.
l3f
54.324
0.00
453.061
O.Of
55 bu.
9/1-4/30
*132
0
0
Irrig.
66
26.36
0.0
219.87
0.0(
1.0 Tons
10/1-3/31
so
0
0
Irrig.
50
19.97
0.001
64.11
0.04
5.5 Tons
3/1-9/30
*235
0
0
Inrig.
2351
93.87
o-00'
301.321
0.01
75 bu.
2/15-6/30,
*94
07
20
Irrig.
74
29.56
0.00
1,415.86
0.01
40 bu.
911-4/30
*96
L-0
1
-L-L�-.
0
Mg 1
48
19A 71
0.00
918.40
0.01
Preview Database Version 3.1 Date Printed: 4/9/20 10 WUT Page I of 3

Waste Milt, -,on Table
I Total Use,
Tract I Field ISourcol Soil series Acres I Acres
iearl
Nitrogen Comm
Res. Manure I Liquid Solid
Liquid
Solid
PA Fert.
Obs/A) PA Manurp-A Manure
Manure
Manure
Nutrient Nutrient
Nutrient pphed Applied
Applied
Applied
Rqd Apphed
Applied (acre) (am)
(Field)
(Field)
1�� _2t/A)
Obs/A)
Applic.
Applic. lOOD
Crop RYE Period I N I N
N I Method I N I gal/A I Tons
1000 gals I
tons
Total Applied, 1000 gallons
7,464.331
Total Produced, 1000 gallons
7,402.10
Balance, 1000 gallons
-62.23
Total Applied, tons
0.04
Total Produced, tons
0.0(
Balance, tons
—0(
Notes: 1. In the tract column, — symbol means leased, otherwise, owned. 2. Symbol * means user entered data.
Preview Database Version 3.1 Date Printed: 4/9/2010 WUT Page 2 of 3

Waste UH112 on Table
( " ear 2
Source
Total
Use.
Applic.
Nitrogen Canni.
PA Fert.
Nutrient Nutrient
Req'd Applied
Obs/A) Obs/A)
Res.
Obs/A)
Appfic.
Manure Liquid Solid
PA ManurcA Manure
Nutrient pplied Applied
Applied (a_) (a_)
Obs/A)
1000
Liquid
Manure
Applied
(Fietd)
Solid
Manure
Applied
(Field)
Tract
Field
ID
Soil Series
Acres
Acres Crop
RYE
Period
N
N
N
Method
N gal/A Tons
1000 gals
tons
RN
I
S7
Wagrarn
8.211
8.21 Small Grain Overseed
1.0 Tons
10/1-3/31
50
0
0
Iffig.
so 19.97 0.00
163.97
0.01
RN
I
S7
Wagram
8.21
8.21 Hybrid Bermudagrass Pasture
5.5 Tons
3/1-9/30
*235
0
0
Irrig.
235 93.87 0.00
770.66
0.01
RN
10
S7
Planton
6.95
6.9S Small Grain Overseed
1.0 Tons
10/1-3/31
50
0
0
Irfig. 1
50 19.971 0.00
138.811
0.0(
RN
10
S7
Blanton
6.95
6.95 Hybrid Bermudagrass Pasture
4.5 Tons
3/1-9/30
190
0
0
Irrig.
190 75.891 0.00
527.46
0.0(
RN
2
S7
Norfolk
10.321
10.32 Wheat, Gram
60 bu.
9/14/30
*144
0
0
Irrig.
72 28.76 0.00
296.80
0.01
RN
2
S7
Norfolk
10.32
10.32 Soybeans, Manured, Double Crop
3 - 5 bu.
4/1-9/15
*140
0
0
Iff ig.
140 55.92 0.00
577.11.
0.01
RN
3
S7
Norfolk
5.82
5.82 Wheat, Grain
60 bu.
9/1-4/30
*144
0
0
Iffig.
72 28.76 0.00
167.38
0.0 1
RN
3
S7
Norfolk
5.82
5.82 Soybeans� Manured, Double Crop
35 bu.
4/1-9/15
*140
0
0
Irrig.
140 55.921 0.00
325.47
0.0(
RN
4
S7
Wagrant
10.781
10.78 Small Grain Overseed
1.0 Tons
10/1-3/31
50
0
0
Irrig.
so 19.97 0-00
215.30
0.01
RN
4
S7
Wagram
10.781
10.78 Hybrid Bermudagrass Pasture
5.5 Tons
311-9t3O
*235
0
0
Irrig.
235 93.87 0.00
1,011.90
0.01
RN
5
S7
Lynchburg
8.34
8.34 Wheat, Grain
55 bu.
9/1-4/30
*132
0
0
Irrig.
64 26.36 0.00
219.87
0.01
RN
, 5
S7
Lynchburg
8.34
8.34, Soybeans, Manured, Double Crop
39 bu.
4/1-9/15
-156
0
0
Irrig.
156 62.31. 0.00
519.69
O.Of
RN
7
S7
Wagram
3.21
3.21 Small Grain Overseed
1.0 Tons
1011-3/31
50
0
0
Irrig.
50 19.971 0.00
64.11
0.01
RN
7
S7
Wagrarn
- 3.211
3.21 Hybrid Berrnu&g..s Pasture
5.5 Tons
.
3/1-9/30
*235
0
0
Iffig.
235 93.87 0.00
301.32
0.01
RN
Pivot
S7
Wagram
47.901
47.90,Wheat, Grain
40 bu.
9/1-4/30
*96
0
0
Irrig.
48 19.17 0.00
919.40
0.01
RN
Pivot
S7
Wagram
- 47.901
47.901 Soybeans, Manured, Double Crop
23 bu. 1
4/1-9/15
92
0
0
Irrig.
921 36.75�1 0.00
1,760.26
0.01
Total Applied, 1000 gallons
7.979,50
Total Produced, 1000 gallons
7.402.10
Balance, 1000 gallons
-576.41
Total Applied, tons
0.0(
Total Produced, tons 1
00
Balance, tons
0.01
Notes:
1. In the tract column, - symbol means leased, otherwise, owned.
2. Symbol * means user entered data.
Preview Database Version 3.1 Date Printed: 4/9/20 10 WUT Page 3 of 3

The Available Waste Storage Capacity table provides an estimate of the number of days of storage
capacity available at the end of each month ofthe plan. Available storage capacity is calculated as the
Ao-rage c -xcity in days minus the number of days of net storage volume accumulated. The start
date is a value entered by the user and is defined as the date prior to applying nutrients to the first crop in
the plan at which storage volume in the lagoon or holding pond is equal to zero.
�F, -Af.�-
if the available storage capacity is greater than the design storage
tfU QIUM C Q' D.-CLITHU111.1 --- �j
f�eener-flinjqh i.,aprnnn i i(mid
Start Date 19/1
Plaa Ye"
S �TT 1 0—
180
Available Stofage Capacity
2
3
57
76
4
88
5
118
6
7.
149
155
8
143
9
146
10
137
11
143
12
134
2
1
121
2
2
111
2
3
121
2
4
151
2
5
180
2
6
180
2
7
180
2
8
180
2
9
180
2
10
157
2
11
135
2
12
112]
* Available Storage Capacity is calculated as of the end of each month-
295567 Database Version 3.1 Date Printed: 04-04-2007 Capacity Page I of I
NO

The following Lagoon Sludge Nitrogen Utilization table provides an estimate of the number of acres needed for
sludge utilization for the indicated accumulation period. These estimates are based on average nitrogen
concentrations for each source, the number of animals in the facility and the plant available nitrogen application
rates shown in the second column.
Lagoon sludge contains nutrients and organic matter remaining after treatment and application ofthe effluent. At
clean out, this material must be utilized for crop production and applied at agronomic rates. In most cases, the
11 C.1 ding
., phosphorous, copper and zinc can also be limiting. Since
n utrient levels are generally very high, application of sludge must be carefully applied.
used for sludge application. If thi s i s not possible, c are Sh OLE I d be taken not to 1 oa d eff-I u en t ap p1l UL,� 2
...... . ...
T
Maximum
Maximum Sludge
Crop
PA-N Rate
Application Rate
Minimum Acres Minimum Acres
Minimum Acres
lb/ac
1000 gal/ac
5 Years Accumulation 10 Years Accumulation
15 Years Accumulation
Swine Feeder -Finish Lagoon Sludge - Standard
iCom 120 bu
150
13.16
100.101 200.21
300.31
,flay 6 ton R.Y.E.
300
26.32
-I-
50.05
100.10
150.15
[so—AnT 40 bu
160
14.04
93.851
187.69
281.54
295567 Database Version 3.1 Date Printed: 04-04-2007 Sludge Page I of I

The Irrigation Application Factors for each field in this plan are shown in the following table. Infiltration rate varies
with soils. If applying waste nutrients through an irrigation system, you must apply at a rate that will not result in
runoff. This table provides the maximum application rate per hour that may be applied to each field selected to
receive wastewater. It also lists the maximum application amount that each field may receive in any one application
event.
Irrigation Application Factors
Application Rate
Application Amount
Tract
Field
Soil Series
(inches/hour)
(inches)
RN
I
Wagram
0.60
1.0
RN
10
Blanton
0.75
1.0
RN
2
N orfolk
0.50
1.0
RN
3
Norfolk
0.50
1.0
RN
4
Wagrain
0.60
1.0
RN
5
Lynchburg
0.50
1.0
RN
6
Wagram
0.60
1.0
RN
7
Wagrarn
0.60
1.0
RN
8 lWagram
0.60
1.0
M
9 INorfolk
0.50
1.0
INnIrc-117 1) 1 r%-4- TY-:--A A 1A lnf%A,7 TAV T)- I -r I

PLANS & SPECIFICATIONS
1 Animal waste shall not reach surface waters of the state by runoff, drift, manmade
conveyances, direct application, or direct discharge during operation or land application. Any
discharge of waste which reaches surface water is prohibited. Illegal discharges are subject
to assessment of civil penalties of $10, 000 per day by the Division of Water Quality for every
day the discharge continues.
2. The Field Office must have documentation in the design folder that the producer either
owns or has long term access to adequate land to properly dispose of waste. If the producer
does not 'own adequate land to properly dispose of waste, he shall provide NRCS with a
copy of a written agreement with a landowner who is within a reasonable proximity, allowing
him/her the use of the land for waste application for the life expectancy of the production
facility. It is the responsibility of the owner of the facility to secure an update of the Waste
Utilization Plan when there is a change in the operation, increase in the number of animals,
method of utilization, or available land.
3. Animal waste shall be applied to meet, but not exceed, the Nitrogen needs for realistic
crop yields based on soil type, available moisture, historical data, climate conditions, and
level of management, unless there are regulations that restrict the rate of application for
other nutrients.
4. Animal waste may be applied to land that has a Resource. Management System (RMS) or
an Alternative Conservation System (ACS). If an ACS is used the soil loss shall be no
greater than 10 tons per acre per year and appropriate filter strips will be used where runoff
leaves the field. These filter strips will be in addition to "Buffers" required by DEM. (See
FOTG Stantard 393 - Filter Strips and Standard 390 Interim Riparian Forest Buffers).
5. Odors can be reduced by injecting the waste or disking after waste application. Waste
should not be applied when there is danger of drift from the irrigation field,
6. When animal waste is to be applied on acres subject to flooding, it will be soil incorporated
on conventionally tilled cropland. When applied to conservation tilled crops or grassland, the
waste may be broadcast provided the application does not occur during a season prone to
flooding. (See "Weather and Climate in North Carolina" in the NRCS Technical Reference -
Environment file for guidance.)
*7. Liquid waste shall be applied at rates not to exceed the soil infiltration rate such that
runoff does not occur offsite or to surface waters and in a method which does not cause drift
from the site during application. No ponding should occur in order to control conditions
conducive to odor or flies and to provide uniformity of application.
8. Animal waste shall not be applied to saturated soils, during rainfall events, or when the
surface is frozen.
9. Animal waste shall be applied on actively growing crops in such a manner that the crop is
not covered with waste to a depth that would inhibit growth.
10. Waste nutrients shall not be applied in fall or winter for spring planted crops on soils with
a high potential for leaching. Waste nutrient loading rates on these soils should be held to a
minimum and a suitable winter cover crop planted to take up released nutrients. Waste shall
not be applied more than 30 days prior to planting of a crop on bare soil.
11 - Any new swine facility sited on or after October 1, 1995 shall comply with the following:
the outer perimeter of the land area onto which waste is applied from a lagoon that is a
component of a swine farm shall be at least 50 feet from any residential property boundary
and from anv Derennial stream or river (other that an irriaation ditch or canal. Animal waste
Page 7 of 10

other than swine waste from facilities sited on or after October 1, 1995), shall not be applied
closer than 25 feet to perennial waters. (See Standard 393 - Filter Strips)
12. Animal waste shall not be applied closer than 100 feet to wells.
13. Animal Waste shall not be applied closer than 200 feet of dwellings other than those
owned by the landownwer.
14. Waste shall be applied in a manner not to reach other property and public right - of ways
15. Animal waste shall not be discharged into surface waters, drainageways, or wetlands by
discharge or by over -spraying. Animal waste may be applied to prior converted croplands
provided they have been approved as a land application site by a "technical specialist".
Animal waste should not be applied on grassed waterways that discharge directly into water
courses, except when applied at agronomic rates and the application causes no runoff or
drift from the site.
*16. Domestic and industrial waste from washdown facilities, showers, toilets, sinks, etc.,
shall not be discharged into the animal waste management system.
*17. A protective cover of appropriate vegetation will be established on all disturbed areas
(lagoon embankments, berms, pipe runs, etc.). If needed, special vegetation shall be
provided for these areas and shall be fenced, as necessary, to protect the vegetation.
Vegetation such as trees, shrubs, and other woody species, etc. are limited to areas where
considered appropriate. Lagoon areas should be kept mowed and accessible. Lagoon berms
and structures should be inspected regularly for evidence of erosion, leakage or discharge.
*18. If animal production at the facility is to be suspended or terminated, the owner is
responsible for obtaining and implementing a "closure plan" which will eliminate the
possibility of an illegal discharge, pollution and erosion.
*19. Waste handling structures, piping, pumps, reels, etc., should be inspected on a regular
basis to prevent breakdowns, leaks, and spills. A regular maintenance checklist should be
kept on site.
20. Animal waste can be used in a rotation that includes vegetables and other crops for
direct human consumption. However, if animal waste is used on crops for direct human
consumption, it should only be applied as a preemergence with no other applications of
animal waste during the crop season.
*21. Highly visible markers shall be installed to mark the top and bottom elevations of the
temporary storage (pumping volume) of all waste treatment lagoons. Pumping shall be
managed to maintain the liquid level between the markers. A marker will be required to mark
the maximum storage volume fpr waste storage ponds.
22. Waste shall be tested within 60 days of utilization and soil shall be tested at least
annually at crop sites where waste products are applied. Nitrogen shall be the rate -
determining element. Zinc and copper levels in the soils shall be monitored and alternative
crop sites shall be used when these metals approach excessive levels. pH shall be adjusted
for optimum crop production amd maintained. Soil and waste analysis records shall be kept
for five (5) years. Po'ultry dry waste application records shall be maintained for three (3)
years. Waste application records for all other waste shall be maintained for five (5) years.
23. Dead animals will be disposed of in a manner that meets North Carolina Department of
Agriculture regulations.
* Liquid Systems
Page 8 of 10

alto Am
looz.".9liunr
�' Rr:
OW
V I
'14
1.
ji
i5f., .. ...
F4
XI.
.1 All.
AA,
As

��Ii .1 r
3.1 N
P-M� W.1,77
frA
16
I,Cbbt
PC t
PC
30
F.XPO.su.re. 44 . t�- I
i & Mo.-
4g' 1
tN I - - ,
Fo-r ms

p_-w ?
Swine Farm Waste Management Odor Control Checklist
Source Cause BMPs to Minimize Odor Site Specific Practices
�Swine pr Vegetative or wooded buffers
%"Recommended best managernent practices
Good,u.dgmen, �and c�ommonsonse........
y floors
I �abod�y��D an�ure-cov�erd
lim irty in
es s
�rfac I anim�al
Floor surfaces
�eWet manure-�ov—ered--fl-00rs---Q'—S—It—td—fl—,o—rs----
Q'Waterers located over slotted floors
El' Feeders at high end of solid floors
CYScrape manure buildup from floors
—Ma—nure —col—jec—tion
11 Undeffloor ventilation for drying
pits
0 Urine
-
fg'Frequent manure removal by flush, pit recharge,
0 Partial microbial
or scrape
�exhaust
decomposition
C] Underfloor ventilation
)7entilation
_*I—Vo—lati—legases
MFan maintenance
fans
Dust
IVEfficient air movement
between groups of animals
[]-,Teed additives
CI Feeder covers
WFeed delivery downspout extenders to feeder
TIIus1h �tanks
Agitation of recycled lagoon
covers
13 Flush tank covers
liquid while tanks are filling
Extend fill lines to near bottom of tanks with
anti -siphon Vdnts

Source Cause BMPs to Minimize Odio—r—; Mile Specifle Practices
End of drainpipes at 0 Agitation during wastewater 'Extend discharge point of pipes underneath
lagoon conveyance lagoon liquid level
Lagoon surfaces a Volatile gas emissions; U'Proper lagoon liquid capacity;
6 Biological mixing; fW"'Correct lagoon startup procedures;
0 Agitation P'Minimurn surface area -to -volume ratio;
Iffigation sprinkler 0 11 igh pressure agitation;
nozzles 0 Wind drift
Storage lank or basin * Partial microbial decomposition;
surface 0 Mixing while filling;
0 Agitation when emptying
Sealing basin surface Partial microbial decomposition;
0 Mixing while filling;
0 Agitation when emptying
Manure, slurry or sludge a Agitation when spreading;
spreader outlets 0 Volatile gas emissions
Uncovered manure, Volatile gas emissions while
slurry or sludge on field drying
surfaces
gk�Minimum agitation when.pumping;
0 Mechanical aeration;
63"'-Proven biological additives
M'*'-Irrigate on dry days with I ittle or no wind;
(;--Minimum recommended operating pressure;
WO* -Pump intake near lagoon liquid surface;
13 Pump from second-slage lagoon
'Bottom or midlevel loading;
13 Tank covers;
C] Basin surface mats of solids;
I
Proven biological additives or oxidants
-Extend drainpipe outlets underneath liquid
level;
Remove settled Solids regularly
Soil injection of slurry/sludges;
Er Wash residual manure front spreader afier use;
19"llroven biological additives or oxidants
- Soil injection of slurry/skidges
O'Soil incorporation within 48 Ins.;
Ct'lpread in thin uniform layers for rapid drying;
64"Proven biological additives or oxidants
Dead animals 0 Carcass decomposition (W—Proper disposition of carcasses
Dead animal disposal 0 Carcass decomposition R—Complele covering of carcasses in burial pits;
pits El Proper location/consiruction ol'disposal pits
Incinerators 0 IncompOe combusfion 13 Secondary slack burners
A ' IC - November 11, 1996. Page 4

Source_ Cause HIVIPs to Minimilze Odor Site Specific Practices
Standing water around 0 Improper drainage; 2r' Grade and landscape such that water drains
facilities * Microbial decomposition of away from facilities
organic matter
blr4nn access r�ad maititenance
Manure tracked onto 0 Poorly maintained access roa s
public roads from farm
Additional Information
Available From
Swine Manure Management ; 0200 Rule/DMP Packet
NCSU, County Extension Center
Swine Production Farm Potential Odor Sources and Remedies; EBAEFactSheel
NCSU-BAE
Swine Production Facility Manure Management, Pit Recharge - Lagoon Treatment FBAE 128-88
NCSU-BAE
Swine Production Facility Manure Management: Underfloor Flush - Lagoon Treatment; EBAE 129-88
NCSU-BAE
Lagoon Design and Management for Livestock Manure Treatment and Storage; EBAE 103-83
NCSU-BAE
Calibration of Manure and Wastewater Application Equipment; EBAEl-actSheet
NCSU-BAE
Controlling Odors from Swine Buildings; PIH-33
NCSU - Swine Extension
Environmental Assurance Program ; N PPC Manual
NC Pork Producers Assoc
Options for Managing Odor; a report from the Swine Odor Task Force
NCSU Agri Communications
Nuisance Concerns in Aniinal Manure Management: Odors and Flies ; PRO 107, 1995 Conference Proceedings
Florida Cooperative Extension
AMOC - November 11, 1996, Page 5

Insect Control Checklist for Animal Operations
Saill
-cc— Cause BMPS to coull-al I lisceis Site Specific Practices
Liquitl Systenis
Accumulation of solids - 1"llish sYSIC131 is designed and operwed
sufficiently to remove amniltilitled solids froll,
litters as designed.
cinove bridging of acclillillialcd solidsll
tlischarge
i i%4 oils i 1,11 his ("itisled Solids
lagoons, selfling basins and
pest breeding is apparent to illillialize like
crusting of solids to a depilt of to mofe than 6 -
inches over niore than 30% of sllrj�acc.
ALCSNive vunclallvc Decaying vegetalioll iwliMailllaill vegetative control along banks of
lagoons and other impoundrileills lo )rev(:,,,
ac""I'llati011 Of ticci'Yi,ig vegetative inaiter
along water's edge oil inipollildnielli,s 1)erilllclel.
Dry Systellis
Feed Spillage 11, opCi-aic and Illaililaill feet] syslenis
r1r-1 ) —s i 1; — � � -
blinkers and trollgils) to Illillinlize tile
AICC [Jill 11 lal ion of decaying wastage.
"call UP sPill."ge oil a romine basis (e.g., 7 - 10
day i'llervill tillrilig st"lliner; 15-30 day illic, val
--- -------- hiring wittier).
I:CL:tl Slolage Accumulations of feed residu
es e illoisl tire accunill Jill ill,, will-,ili alld
around inlillediale perillicler dif ficed stol ave
areas by iris"riiig drainagea%vily ji-oll, site
and/or providing adequate cr,lijaillillujil. (e.g.,
Coveredhin 11or brewers gra ill .11,41 sill, i lilt. 11 it"ll
lHoislure grain products).
171 hislicc ' I tbr and remove or bleak kill acculliallillell
solids ill tiller strips arollild ficed Slolilge as
needed.
AM. � Novcnihcr pilge I

Cause
Animal I J& 1 9 Areas--.
dii—i
JOus of allillial waste$
and feed wastage
f I _Ig
A
HFWPS go
r Eliminate low areas "'at tralli III along
fences and Other locations '
where waste
accumulates and disturbance by allill,als is
minimal.
Maintain fence rows and filter -strips around
aflimalholding areas to minimize
accumulation, Of wastes (i.e., inspect for and
remove or break tip accumulated solids as
810�'II
U1 alullial wastes n Remove spillage On a routine basis (e.g., 7 —1
(lay interval during summer; 15-30 (Jay interval
during winter) wile
're Inallilre is loaded for land
application or disposal.
n Provide for ade(Illate drainage
stockpiles. around niantire
rl hIsPect for anti Fel"Ove Or break tip accillnulaled
wastes in f1ler strips around stockpiles ari(I
inantirepjildling
area as-necded.
FOr More jillonnaii0j, contact file C , 00peralive I.XiensioH.Service, I)Cpar, - -
16 lCiEll, NC. 2 1695-76 13. Illent Of I.
-1110111()109Y. Box 7613, Norill (,arolina %title 111jiversily.
A & 1 IC - Novem I)er 11. 1996, Pav 2

F., - S- L-)
EMERGENCY ACTION PLAN
PHONE NUMBERS
DWQ 910
EMERGENCY MANAGENMNT SYSTEM 2//
SWCD 910 5*9.z —
NRCS 9,,e -ITT.2 - 7993
This Plan will be implemented in the event that wastes from your operation are leaking,
Overflowing, or running off site. You should not wait until wastes reach surface waters or
leave your property to consider that you have a problem. You should make every effort to
ensure that this does not happen. Th.is plan should be posted in an accessible location for
all employees at the facility. The following are some action items you should take.
I. Stop the release of wastes. Depending on the situation, this may or may not be
possible. Suggested responses to sorne possible problems are listed below.
A. Lagoon overflow -possible solutions are:
a. Add soil to berm to increase elevation of dam.
b. Pump wastes to fields at an accept -able rate.
c. Stop all flows to the lagoon immediately.
0 1
d. Call a pumping contractor.
e. Make sure no S!��ce water is entering lagoon.
0 0
B: Runoff from waste application field -actions include:
a. Immediately stop waste application.
b. Create a temporary diversion to contain waste.
c. Incorporate waste to reduce runoff.
d. Evaluate and eliminate the reason(s) that caused the runoff.
e. Evaluate the application rates for the fields where runoff occurred.
C: Leak -age from the waste pipes and sprinklers -action include:
a. Stop recycle pump.
b. Stop irri;ation pump.
c. Close valves to eliminate further discharge.
d. Repair all leaks prior to restarting pumps.
z
D: Leakage from flush systems, houses, solid separators -action include:
a. Stop recycle pump,
b. Stop irnization pump.
C. Make sure no iiphon occum
d. Stop all flows in the house. flush systems, or solid separators.
December 18, 1996

e. Repair all leaks prior to restarting pumps.
E: Leakage from base or sidewall of lazoon. Often this is seepage as opposed to
flowij leaks- possible action:
a. Dig a small sump or ditch away from the embankment to catch all seepage,
put in a submersible pump, and pump back to lagoon.
b. If holes are caused by burrowing animals, trap or remove animals and fi.0
holes and compact with a clay type soil.
c. Have a professional evaluate the condition of the side walls and lagoon
bottom as soon as possible,
2. Assess the extent of the spill and note any obvious damages.
a. Did the waste reach any Surface waters?
b. Approximately how much was released and for whatduration?
C. Any damage noted, such as employee injury, fish kills, or property damage?
d. Did the spill leave the property')
e. Does the spill have the potential- to reach surface waters?
f. Could a future rain event cause the spill to reach surface waters,7
g. Are potable water wells in danger.(either on or off of the property)?
h. How much reached surface wa"ters?
3: Contact appropriate agencies.
0 W
a. Durina normal business hours, call your DWQ (Division of ater Quality)
regional offlce; Phone%'-0-447?&�/ After hours, emergency number: 919-733-3942.
Your phone call should include: your name, facility, telephone number, the details
of the incident from item 2 above, the exact location of the facility, the location or
direction of movement of the Spill, weather and wind conditions. The corrective
measures that have been under taken, and the seriousness of the situation.
b. If spill leaves property or enters surface waters, call local EMS Phone number
C. Instruct EMS to contact local Health Department.
d. Contact CES, phone number 0V-Z"6*, local SWCD office phone number
and local NRCS office for advice/technical assistance phone number -
4: If -none of the above works call 9 11 or the Sheriffs Department and expLain your
problem to them and ask that person to contact the proper agencies for you.
T 0 W
5: Contact the contractor of vour choice to beg n repair of problem to minimize ff-si
daman.
a. Contractors Name:—'�'
b. Contractors Address�
c. Contractors Phone: 0
2 December 18, 1996

6; Contact the technical speciallsz, .%-ho cer-cified the lagoon (NRCS, Consulting
Enzineer. etc.)
a. Name: Ct&w-�tk -Fae-.,ji,;k
b. Phone:
7: Implement proc-edures as advised by DWQ and technical assistance agencies to
rectify the damage. repair the sys:em. and reassess the wasie mariazement plan to
ke--., roblems %vi th re!ease of wastes from happening again.
I P I C -

Version —Nove rn ber 26, 2018
Mortality Management Methods
Indicate which method(s) wffl be implemented.
When selecting multiple methods indicate a primary versus secondaty option.
Methods other than those listed must be approved by the State Veterinarian.
Primary Secondary Routine Mortality
13!urial t1hree feet beneath the surface of the ground within 24 hours of knowledge of animal
death. The burial must be at least 300 feet from any flowing stream or public body of water
(G.S. 106-403). The bottom of the burial pit should be at least one foot above the seasonal
high, water table. Attach burial location map and plan.
Landfill at municipal solid waste facility permitted by NC DEQ under GS 15A NCAC
13B .0200.
r9l Rendering at a rendering plant licensed under G.S. 106-168.7.
KN 7
7 7 Complete incineration according to 02 NCAC 52C .0102.
A composting system approved and permitted by the NC Department of Agriculture & Con-
sumer Services Veterinary Division (attach copy of permit). If compost is distributed off -farm,
additional requirements must be met and a permit is required from NC DEQ.
In the case ofclead poultry only, placing in a disposal pit of a size and design approved by the
NC Department of Agriculture & Consumer Services (G.S. 106-549.70).
Any method which, in the professional opinion of the State Veterinarian, would make possible
the salvage of part of a dead animal's value without endangering human or animal health.
(Written approval by the State Veterinarian must be attached).
F-1 Mass Mortality Plan
Mass mortality plans are required for farms covered by an NPIDES permit. These plans are
also recommended for all animal operations. This plan outlines farm -specific mortality man-
agement methods to be used for mass mortality. The NCDA&CS Veterinary Division sup-
ports a variety of emergency mortality disposal options; contact the Division for guidance.
• A catastrophic mortality disposal plan is part of the facility's CAWMP and is activated
when numbers of dead animals exceed normal mortality rates as specified by the State
Veterinarian.
• Burial must be done in accordance with NC General Statutes and NCDA&CS Veterinary
Division regulations and guidance.
• Mass burial sites are subject to additional permit conditions (refer to facility's animal
waste management system permit).
• In the event of imminent threat of a disease emergency, the State Veterinarian may enact
additional temporary procedures or measures for disposal according to G.S. 106-399.4-
Signatule of Farm Owner/Manager
Signature of Technical Specialist
Date
Date

LAGOON DESIGN
Operazor
james F. Naylor
County:
Sampson
Date:
02/12/96
Dis--ance
to nearest residence (other
than owner):
Existing
feet
;---,7---RAGE LIVE WEIGHT
(ALW)
0
Sows (farrow to
finish)
x 1417
lbs
0
lbs
0
sows (farrow to
feeder)
x 522
lbs
0
lbs
1224
head (finishing
only)
x 135
lbs
165240
lbs
0
Sows (farrow to
wean)
x 433
lbs
0
lbs
0
head (wean to feeder)
x 30
lbs
0
lbs
Describe other
0
Total Average Live Weight
165240
lbs
2. MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
Volume = 165240 lbs. ALW x Treatment Volume (CF) /lb. ALW
Treatment Volume(CF)/lb. ALW 1
CF/lb. ALw
Volume = 165240 cubic feet
3. STORAGE VOLUME FOR SLUDGE ACCUMULATION
Volume = 0.0 cubic feet PF-R owr�saves ?,Gquc-,$T-.
4. TOTAL DESIGNED VOLUME
side toD length (feet) --------------------
260.0
I ---side top width (feet) ---------------------
170.0
--cm of dike elevation (feet) ----------------
49.3
Bottom of lagoon elevation (feet) -----------
36.6
Freeboard (feet) ----------------------------
1.0
Side slopes (inside lagoon) -----------------
3.0
Total design volume using prismoidal formula
SSIEND SS/END SS/SIDE SS/SIDE LENGT
WIDT
DEPTH
3.0 3.0 3.0 3.0 254.0
164.0
11.7
AREA OF TOP
LENGTH * WIDTH
254.0 164.0 41656 (AREA OF
TOP)
AREA OF BOTTOM
n gog
LENGTH * WIDTH
183.8 93.8 17240 (AREA OF
BOTTOM)
IS S0*0
AREA OF MIDSECTION
LENGTH WIDTH * 4
218.9 128.9 112865 (AREA OF
MIDSECTION
4)
CU. FT. (AREA TOP + (4*AREA MIDSECTION) + AREA BOTTOM]
DEPTH/6
41656.0 112864.8
17240.4
1.9
Total Designed volume Available 334934 CU. FT.

DRAINAGE AREA:
Lagoon (top of dike)
Length * Width =
260.0 170.0 44200.0 square feet
Buildings (roof and lot water)
0.0 square feet Describe this area.
TOTAL DA 44200.0 square feet
Design temporary storage p riod to e 180 days.
5A. Volume of waste produced
Feces urine production in gal./day per 135 lb. ALW
Volume 165240 lbs. ALW/135 lbs. ALW 1.37 gal/da
Volume 301838 gals. or 40352.7 cubic feet
5B. Volume of wash water
This is the amount of fresh water used for washing floors or volume
of fresh water used for a flush system. Flush systems that recirculate
the lagoon water are accounted for in 5A.
Volume = 0.0 gallons/day 180 days storage/7.48 gallons
Volume = 0.0 cubic feet per CF
5C. Volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds evaporation by largest amount.
180 days excess rainfall 7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
Volume = 25783.3 cubic feet

.51). Vplume of 25 year - 24 hour storm
-volume = 7.0 inches / 12 inches per foot * DA
Volume = 25783.3 cubic feet
TOTAL REQUIRED TEMPORARY STORAGE
5A. 40353 cubic feet
5B. 0 cubic feet
5C. 25783 cubic feet
5D. 25783 cubic feet
TOTAL 91919 cubic feet
6. SUMMARY
Temporary storage period====================
180
dav-s
Rainfall in excess of evaporation===========
7.0
inches
25 year - 24 hour rainfall==================
7.0
inctes
Freeboard===================================
1.0
feet
Side
3.0
: 1
Inside top length===========================
260.0
feet
Inside top
170.0
feet
Top of dike elevation=====================.=
49.3
feet
Bottom of lagoon elevation==================
36.6
feet
Total required volume=======================
257159
cu. ft.
Actual design volume========================
334934
cu. ft.
Seasonal high watertable elevation (SHWT)===
42.6
feet
Stop pumping
43.9
feet
Must be > or = to the SHWT elev.==========
42.6
feet
Must be > or = to min. req. treatment el.=
42.6
feet
Required minimum treatment volume===========
165240
cu. ft.
Volume at stop pumping elevation============
174903
cu. ft.
Start pumping
45.9
feet
Must be at bottom of freeboard & 25 yr. rainfall
Actual volume less 25 yr.-,24 hr. rainfall==
309151
cu. ft.
Volume at start pumping elevation===========
242017
cu. ft.
Required volume to be pumped================
66136
cu. ft.
Actual volume planned to be pumped==========
67114
cu. ft.
Min. thickness of soil liner when required==
1.9
feet
7. DESIGNED BY: M, PlQy�.A A.6,ms APPROVED BY:
DATE: DATE:
NOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:
Z

gde,z
00A_,
+ -W j
OP NAN.110044,2
I a M_ w
[As"Lto netw-e%st fresider. lci� (01 Met WIWI 01V�
I L.
L ix Marrow
head ffinishing onbA=====
zuo-vvs (farrow to vvean)
I V-1 %J =.0,
f r rytr
01
LS1Loracjc_vojujjjqfr
jr I
I Uri W_ kr
1A U — — — — — — — — — — — --
C-,i 1
-7 p
MfPrrimfinn (in
7
n
Drainage area of & lots (scl. ft.)=>
ri I u, f i - o t was h -wa r
— — — — — — — — — — — — --
i=j1ipV1c#JY 7j.%Jjag=� psn'.4-4 — — — — — — — — — — — — —
1 or!
M (ft — — — — — — —
— — — — —
— — — — — — — — — — — —
1 n
Sidc- sfopes (In sicie bvgoon): =>
. �
. , ! if If:%
inu--ida- 110p) 110-figin - - - - - - - - - - - - - - -
A Ar� r%
"u.0
to- widt
F
TO-ty-D- Of Cliks --�!,gvabon (k),
1 n4.5
Bottom of lagoon el watbon (ft): =>
I .
U
-1.0
C, C,
JrjaGonal hicih water table(MIAT)
96.8
T�+-_l rg 1.
i "i LUI I ,CILI Ired V,u-1,uma_-= 0 U
Actual design volu 75-979" nu
10-4) (VT--1,
Stop Pumping ell. (.--. or = to 'HWT
ft.S
100.2
or = to ft. f.
P,C� Cp " ji, ^ ri ,f , , L -.6--a-+wrdur-ne-
. W-1,1,31iff t. 1-Mil-ji. - if .
**TPRAT V(-il r-i V vit
vI
0 ump- at stop pumpi nci re lAvation: it
I -1
- 1 .111 1 . , -L- --., .
10 1 7
ki I
Startpurnping
10 2. 5
if :�--r7 4 C�8 JL.
101UMC- 8AL Gtail punipinig e4vation: U I ; -Tu C U. I L
r-1
i-A,,;;1 L-, j kin. ij.
lecs 25yr-24h.- ro'
na, 7rd70e) .4
in:
1 Ai WICL
Varity that tipt-nn Fztorpma i& rjor
F1
ReCl. VOILIMe 'to be pUj-r-jpeCj-74-3-92 cu. ft.
TE: M F. L G.K.
.4
r'dual volunie t,0 bc- puniped.- 11 75: ft.
1 ril
TQ/37 cu.
.7-7i--,/
I ki I I P.:

itor;ROBERT NAYLOR 43 COLInty: SAMPSON
to nearest residence (other than owner):
AVERAGE LIVE WEIGHT (ALW)
0 sows (flarl-Ow to finish)
0 Sows (farrow to feeder)
3672 head (finishing only)
0 sows (farrow to wean)
0 head (wean to feeder)
Describe other :
Oa te; 1-2/15/94
1500.0 feet
x 1417
lbs.
0
lbs
x 522
lbs.
0
lbs
x 135
lbs.
495,20
ibs
x 433
lbs.
0
lbs
x 30
lbs.
0
lbs
0
Total Average Live Weight-- 495720 lbs
MINIMUM REQUIRE-0 T.'%EATMENT VOLUME OF LAGOON
Volume 495720 lbs. ALW x Treatment Volume (cF 1 - , b. -
A LW
Tf-eatmenu --.,'oiumekCF), ib. ALW 1 C A L'-j
VUlUffle --" 4-957220 cuLic feet
RAGE VOLUME FOP SLUDGE -C;CU1',1ULAFi0N
rOR
Volume 0.0 cutfc feet
FO'r.AL CESI-3NEC� VOLUME
Inside top iength
-i 41 -3. 0
Inside top width (feet) ----- — --
-39.0
Top of dike eievation (feet)---
104.5
BGtt0m of lagoon elevation (feet)------
9,
3 a b o a r d I f q e C)
Side slopez-z (.Lnside lagoon) --- — — ----
i.0
Total design -.,,olum-3 using prismoidal formula
SS/EN01 SS/EN02 SS/(---IDE1 33/-DIDE2 LENGTH
�.,,i o rH DEPTH
3.0 3.0 3.0 3.0 434.0
12.0
AREA OF TOP
LENGTH ' WIDTH
434.0 194.0
ARCEA OF BOTTOI-11
LENGTH - WIcTiq
-362.0 122. 0
AREA 0" 01133ECrION
84196 (AREA OF TOP)
0
44164 (AF-EA OF BOT7-IM)
1AIDTH 4
158. 0 2-5L53F) (AREA OF 4)
CU. FT� FAREA rOP + f4-'-AREA 11110SECTION) + rjfiE,'-. DEP-rH/b
aqI96. 0 251536.0 4
4--4-0 - . 0
Designed Volurro: =
L 1 /5:91'921 CU. F'T.

TEMPORARY STORAGE REQUIRED
ORAINAGE AREA:
Lagoon (top of dike)
Length * Width =
440.0 200.0 88000.0 square feet
suiidin,'S Voof and
.j-
0.0 square feer at -ea.
TOTAL OA 83000.0 square feet
Letsign '-=MPOt",-3r� Period to be
--,iume Of Waste produczed
Feces urine production in gal./day per 135 lb. ALW 1.37
olume 495720 lbs. ALW/135 lbs. ALW 1 1.3 gal/day 180 days
Volume 905515 gals. or 121058.2 cubic feet
Volume of wash water
This is the amount of fresh water used for washing floors or volume
of fresh water used for a flush system. Flush systems -._�_Iat recirculate
the lagoon water are account -ad for in 5A.
Volume = 0.0 galions/day 180 day=- storaz=:7.aa gailorls
Volume = 0.0 cubic feet per CF
Volume of rainfall in excess of evaporation
lj--2,e period of timp- when rainfall --Xceeds -evaporazion by _',arg;�st amount.
180 days excess rainfall 1,.0
Voluffle = 7-0 in ' DA / 12 iri(;he!-; per foot
I - - 3 :.ubL,: f,.aet
Pjlurf,�, = 51'j:',3.'1

Volume of 25 year - 24 hour storm
Volume = 7.5 inches / 12 inche5 pel' foot ` DA
Volume = 55000.0 cub.-*L,: feet
101-AL REQUIRED TEMPORARY STORAGE
SA.
1'21058
cubic
teet
5B.
0
cubic
feet
5C.
61.333
cubic
feet
so.
5'-'-000
cubic
feet
. TOTAL 227392 cubic feet
S U M M A R';
Tt-imporary storage 180 d a ". s
RMintall in excess of evaporaticn����-> 7.0 i nc' " 1,�
y e a r 2 4 h o u r ra i.- 3 1 J 7.5 inc�ies
3 . C) I
Inside top 40 . 0
Inside top w-*Ldth=-- 200.0 feet
Top of dike
104.5 feet
Eottom of lagoon 91.5 f e= t
Total required volume===��---- 7 2 3 112 cu. ft..
Actual design voiunie��--�= 7 5 9 79 2,
easonal h-Lgh watertac- --n, elevation (SHWT)�=/ �)6. 8 f
Stop pumping elev.�- / 130.2 f
Must be '� Oi- = to GHWT elev.= 96.8 feet
Must be > or = to min. req. treatment ei.=� 97.5 fz�r
Required minimum treat,-nent: volume����--> 495720 cu. tt.
.i,jiurrie at stop pumping elevation—�—==� 502031 c, f t.
pumping 10-.S
Must be at bottom o= freeboard & 25 yr. rainfall
Actual 'Volume less 2S ' "r.- 24 hr. rainfall==/" 70479-4 cu. -rl-.
-7468 cu. ft.
-�Qiume at start pumpirg elevation�=========/ 61,
R-equired -volume to be ' 7; limp e 172392 cu. f 1-.
14
f-I.Ctual voiume planned to be pumped==�--=�==> 175437 cu. ft.
Min. thickness of soil liner whan required==, 1.9 test
DESIGNED BY- APPROVED BY:
DATE: 0 (A r E' :
;�(JTE; 3EE ATTAGHEC, WiP-.'1'-,F UTILIZATION PLAN
P1 11 C 1*4 T f�

Rf�
OPERATION & MAINTENANCE PLAN
Proper lagoon liquid management should be a year-round priority. It is especially
important to manage levels so that you do not have problems during extended rainy and
wet periods.
Maximum storage capacity should be available in the lagoon for periods when the
receivi crop is dormant (such as wintertime for bermudagrass) or when there are
extend:f rainy spells such as the thunderstorm season in the summertime. This means
that at the first signs of plant growth in the later winter/early spring, irrigation according to
a farm waste management plan should be done whenever the land is dry enough to
receive lagoon liquid. This will make storage space available in the lagoon for future wet
periods. In the late summer/early fall the lagoon should be pumped down to the low
marker (see Figure 2-1) to allow for winter storage. Every effort should be made to
maintain the lagoon close to the minimum liquid level as long as the weather and waste
utilization plan will allow it.
Waiting until the lagoon has reached its maximum storage capacity before starting to
irrigate does not leave room for storing excess water during extended wet periods.
Overflow from the lagoon for any reason except a 25-year, 24-hour storm is a violation of
state law and subject to penalty action.
The routine maintenance of a lagoon involves the following:
Maintenance of a vegetative cover for the dam.
Fescue or common bermudagrass are the most common vegetative
covers. The vegetation should be fertilized each year, if needed, to
maintain a vigorous stand. The amount of fertilizer applied should be
based on a soils test, but in the event that it is not practical to obtain
a soils test each year, the lagoon embankment and surrounding areas
should be fertilized with 800 pounds per acre of 10-10-10, or
equivalent.
Brush and trees on the embankment must be controlled. This may be
done by mowing, spraying, grazing, chopping, or a combination of
these practices. This should be done at least once a year and
possibly twice in years that weather conditions are favorable for
heavy vegetative growth.
NOTE: If vegetation is controlled by spraying, the herbicide must not be allowed to enter
the lagoon water. Such chemicals could harm the bacteria in the lagoon that are treating
the waste.
Maintenance inspections of the entire lagoon should be made during the initial filling of
the lagoon and at least monthly and after major rainfall and storm events. Items to be
checked should include, as a minimum, the following:
Waste Inlet Pipes, Recycling Pipes, and Overflow Pipes --- look for-
1. separation of joints
2. cracks or breaks
3. accumulation of salts or minerals
4. overall condition of pipes

Lalgoon surface --- look for:
I . undesirable vegetative growth
2. floating or lodged debris
Embankment --- look for:
I . settlement, cracking, or "jug" holes
2. side slope stability --- slumps or bulges
3. wet or damp areas on the back slope
4. erosion due to lack of vegetation or as a result of wave action
5. rodent damage
Larger lagoons may be subject to liner damage due to wave action caused by strong
winds. These waves can erode the lagoon sidewalls, thereby weakening the lagoon dam,
A good stand of vegetation will reduce the potential damage caused by wave action. If
wave action causes serious damage to a lagoon sidewall, baffles in the lagoon may be
used to reduce the wave impacts.
Any of these features could lead to erosion and weakening of the dam. If your lagoon has
any of these features, you should call an appropriate expert familiar with design and
construction of waste lagoons. You may need to provide a temporary fix if there is a threat
of a waste discharge. However, a permanent solution should be reviewed by the
technical expert. Any digging into a lagoon dam with heavy equipment is a serious
undertaking with potentially serious consequences and should not be conducted unless
recommended by an appropriate technical expert.
Transfer Pumps --- check for proper operation of.
I . recycling pumps
2. irrigation pumps
Check for leaks, loose fittings, and overall pump operation. An unusually loud or grinding
noise, or a large amount of vibration, may indicate that the pump is in need or repair or
replacement.
NOTE: Pumping systems should be inspected and operated frequently enough so that you
are not completely "surprised" by equipment failure. You should perform your pumping
system maintenance at a time when your lagoon is at its low level. This will allow some
safety time should major repairs be required. Having a nearly full lagoon is not the time
to think about switching, repairing , or borrowing pumps. Probably, if your lagoon is full,
your neighbor's lagoon is full also. You should consider maintaining an inventory of spare
parts or pumps.
Surface water diversion features are designed to carry all surface
drainage waters (such as rainfall runoff, roof drainage, gutter outlets,
and parking lot runoff) away from your lagoon and other waste
treatment or storage structures. The only water that should be
coming from your lagoon is that which comes from your flushing
(washing) system pipes and the rainfall that hits the lagoon directly,
You should inspect your diversion system for the following:
I . adequate vegetation
2. diversion capacity
3. ridge berm height

Identified problems should be corrected promptly. It is advisable t in pect your system
during or immediately following a heavy rain. If technical assistanoce iss needed to
determine proper solutions, consult with appropriate experts.
You should record the level of the lagoon just prior to when rain is predicted, and then
record the level again 4 to 6 hours after the rain (assumes there is no pumping). This will
give you an idea of how much your lagoon level will rise with a certain rainfall amount
(you must also be recording your rainfall for this to work). Knowing -this should help in
planning irrigation applications and storage. If your lagoon rises excessively, you may
have an inflow problem from a surface water diversion or there may be seepage into the
lagoon from the surrounding land.
Lagoon Operation
Startup:
I Immediately after construction establish a complete sod cover on bare soil
surfaces to avoid erosion.
2. Fill new lagoon design treatment volume at least half full of water before
waste loading begins, taking care not to erode lining or bank slopes,
3. Drainpipes into the lagoon should have a flexible pipe extender on the
end of the pipe to discharge near the bottom of the lagoon during initial
filling or another means of slowing the incoming water to avoid erosion of
the lining.
4. When possible, begin loading new lagoons in the spring to maximize
bacterial establishment (due to warmer weather).
5. It is recommended that a new lagoon be seeded with sludge from a healthy
working swine lagoon in the amount of 0.25 percent of the full lagoon
liquid volume. This seeding should occour at least two weeks prior to the
addition of wastewater.
6. Maintain a periodic check on the lagoon liquid pH. If the pH falls below
7.0, add agricultural lime at the rate of I pound per 1000 cubic feet of
lagoon liquid volume until the pH rises above 7.0, Optimum lagoon liquid
pH is between 7.5 and 8.0.
7. A dark color, lack of bubbling, and excessive odor signals inadequate
biological activity. Consultation with a technical specialist is recommended
if these conditions occur for prolonged periods, especially during the warm
season.
Loading:
The more frequently and regularly that wastewater is added to a lagoon, the better the
lagoon will function. Flush systems that wash waste into the lagoon several times daily are
optimum for treatment, Pit recharge systems, in which one or more buildings are drained
and recharged each day, also work well.

Management:
Practice water conservation --- minimize building water usage and
spillage from leaking waterers, broken pipes and washdown through
proper maintenance and water conservation.
Minimize feed wastage and spillage by keeping feeders adjusted. Tlis
will reduce the amount of solids entering the lagoon
Maintain lagoon liquid level between the permanent storage level and
the full temporary storage level,
Place visible markers or stakes on the lagoon bank to show the
minimum liquid level and the maximum liquid lever (Figure 2-1).
Start irrigating at the earliest possible date in the spring based on
nutrient requirements and soil moisture so that temporary storage
will be maximized for the summer thunderstorm season. Similarly,
irrigate in the late summer/early fall to provide maximum lagoon
storage for the winter.
The lagoon liquid level should never be closer than I foot to the lowest
point of the dam or embankment.
Do not pump the lagoon liquid level lower that the permanent storage
level unless you are removing sludge,
Locate float pump intakes approximately 18 inches underneath the liquid
surface and as far away from the drainpipe inlets as possible.
Prevent additions of bedding materials, long-stemmed forage or vegetation,
molded feed, plastic syringes, or other foreign materials into the lagoon.
Frequently remove solids from catch basins at end of confinement houses or
wherever they are installed.
Maintain strict vegetation, rodent, and varmint control near lagoon edges.
Do not allow trees or large bushes to grow on lagoon dam or embankment.
Remove sludge from the lagoon either when the sludge storage capacity is
full or before it fills 50 percent of the permanent storage volume.
If animal production is to be terminated, the owner is responsible for
obtaining and implementing a closure plan to eliminate the possibility of a
pollutant discharge.
Sludge Removal:
Rate of lagoon sludge buildup can be reduced by:

proper lagoon sizing,
mechanical solids separation of flushed waste,
gravity settling of flushed waste solids in an appropriately designed basin, or
minimizing feed wastage and spillage.
Lagoon sludge that is removed annually rather than stored long term will:
have more nutrients,
have more odor, and
require more land to properly use the nutrients.
Removal techniques:
Hire a custom applicator.
Mix the sludge and lagoon liquid with a chopper -agitator impeller
pump through large -bore sprinkler irrigation system onto nearby cropland;
and soil incorporate.
Dewater the upper part of lagoon by irrigation onto nearby cropland or
forageland; mix remaining sludge; pump into liquid sludge applicator; haul
and spread onto cropland or forageland; and soil incorporate.
Dewater the upper part of lagoon by irrigation onto nearby cropland or
forageland; dredge sludge from lagoon with dragline or sludge barge; berm
an area beside lagoon to receive the sludge so that liquids can drain back
into lagoon; allow sludge to dewater; haul and spread with manure spreader
onto cropland or forageland; and soil incorporate.
Regardless of the method, you must have the sludge material analyzed for waste
constituents just as you would your lagoon water, The sludge will contain different
nutrient and metal values from the liquid. The application of the sludge to fields will be
limited by these nutrients as well as any previous waste applications to that field and crop
requirement. Waste application rates will be discussed in detail in Chapter 3.
When removing sludge, you must also pay attention to the liner to prevent damage. Close
attention by the pumper or drag -line operator will ensure that the lagoon liner remains
intact. If you see soil material or the synthetic liner material being disturbed, you should
stop the activity immediately and not resume until you are sure that the sludge can be
removed without liner injury. If the liner is damaged it must be repaired as soon as
possible.
Sludge removed from the lagoon has a much higher phosphorus and heavy metal content
than liquid. Because of this it should probably be applied to land with low phosphorus
and metal levels, as indicated by a soil test, and incorporated to reduce the chance of
erosion. Note that if the sludge is applied to fields with very high soil -test phosphores, it
should be applied only at rates equal to the crop removal of phosphorus. As with other
wastes, always have your lagoon sludge analyzed for its nutrient value,
The application of sludge will increase the amount of odor at the waste application site.
Extra precaution should be used to observe the wind direction and other conditions which
could increase the concem of neighbors,

Possible Causes of Lagoon Failure
Lagoon failures result in the unplanned discharge of wastewater from the structure. Types
of failures include leakage through the bottom or sides, overtopping, and breach of the
dam. Assuming proper design and construction, the owner has the responsibility for
ensuring structure safety. Items which may lead to lagoon failures include:
Modification of the lagoon structure --- an example is the placement of a pipe
in the dam without proper design and construction. (Consult an expert in
lagoon design before placing any pipes in dams.)
Lagoon liquid levels --- high levels are a safety risk.
Failure to inspect and maintain the dam,
Excess surface water flowing into the lagoon.
Liner integrity ---protect from inlet pipe scouring, damage during sludge
removal, or rupture from lowering lagoon liquid level below groundwater
table.
NOTE: If lagoon water is allowed to overtop the dam, the moving water will soon cause
gullies to form in the dam. Once this damage starts, it can quickly cause a large discharge
of wastewater and possible dam failure.

Operator: Robert Naylor #1 County: Sampson
Distance to nearest residence (other than owner):
1. AVERAGE LIVE WEIGHT (ALW)
0 sows (farrow to finish)
0 sows (farrow to feeder)
1865 head (finishing only)
0 sows (farrow to wean)
0 head (wean to feeder)
Describe other
x 1417 lbs.
x 522 lbs.
x 135 lbs.
x 433 lbs.
x 30 lbs.
Total Average Live Weight
2. MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
,�IVS C2,6V F-C)
Date: 04/26/19
1500.0 feet
Volume = 251775 lbs. ALW x Treatment Vol ume(C F)/Ib. ALW
Treatment Volume(CF)/Ib. ALW = 1 CF/lb. ALW
Volume = 251775 cubic feet
3. STORAGE VOLUME FOR SLUDGE ACCUMULATION
Volume = 0.0 cubic feet
4. TOTAL DESIGNED VOLUME
0 lbs
0 lbs
251775 lbs
0 lbs
0 lbs
0
251775 lbs
Inside top length
324.0
Inside top width
182.0
Top of dike elevation (feet) — ------ — -- — ---
49.4
Bottom of lagoon elevation (feet) — ------ — --
39.7
Freeboard — ----- --
1.0
Side slopes (inside lagoon) ---- — ---------- -
2.5 :1
Total design volume using prismoidal formula
SS/END1 SS/END2 SS/SIDE1 SS/SIDE2 LENGTH
WIDTH DEPTH
2.5 2.5 2.5 2.5 319.0
177.0 8.7
AREA OF TOP
LENGTH * WIDTH
319.0 177.0
AREA OF BOTTOM
LENGTH * WIDTH
275.5 133.5
AREA OF MIDSECTION
LENGTH * WIDTH * 4
297.3 155.3
56463 (AREA OF TOP)
36779 (AREA OF BOTTOM)
184592 (AREA OF MIDSECTION - 4)
CU. FT. = [AREA TOP + (4*AREA MIDSECTION) + AREA BOTTOM] * DEPTH/6
56463.0 184592.3 36779.3
T4 J-
#�Ia-
p , ko
1.5

Total Designed Volume Available = 402860 CU. FT.
5. TEMPORARY STORAGE REQUIRED
DRAINAGE AREA:
Lagoon (top of dike)
Length Width
324.0 182.0 58968.0 square feet
Buildings (roof and lot water)
0.0 square feet Describe this area.
TOTAL DA 58968.0 square feet
Design temporary storage period to nod to b e 180 days.
5A. Volume of waste produced
Feces & urine production in gal./day per 135 lb. ALW 1.37
Volume = 251775 Ibs.ALW/135Ibs.ALW*1.37gaI/day 180 days
Volume = 459909 gals. or 61485.2 cubic feet
5B. Volume of wash water
This is the amount of fresh water used for washing floors or volume
of fresh water used for a flush system. Flush systems that recirculate
the lagoon water are accounted for in 5A.
Volume = 0.0 gallons/day 180 days storage/7 48 gallons
Volume = 0.0 cubic feet per CF
5C. Volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds evaporation by largest amount.
180 days excess rainfall 7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
Volume = 34398.0 cubic feet
5D. Volume of 25 year - 24 hour storm

Volume = 7.0 inches / 12 inches per foot * DA
Volume = 34398.0 cubic feet
TOTAL REQUIRED TEMPORARY STORAGE
5A. 61485 cubic feet
5B. 0 cubic feet
5C. 34398 cubic feet
5D. 34398 cubic feet
TOTAL 130281 cubic feet
6. SUMMARY
Temporary storage period====================>
Rainfall in excess of evaporation===========>
25 year - 24 hour rainfall==================>
Freeboard===================================>
Side
Inside top length===========================>
Inside top width============================>
Top of dike elevation=======================>
Bottom of lagoon elevation==================>
Total required volurne=======================>
Actual design volume========================>
Seasonal high watertable elevation (SHWT)===>
Stop pumping
Must be > or = to the SHWT eIev.==========>
Must be > or = to min. req. treatment el.=>
Required minimum treatment volume===========>
Volume at stop pumping elevation============>
Start pumping
Must be at bottom of freeboard & 25 yr. rainfall
Actual volume less 25 yr.- 24 hr. rainfall==>
Volume at start pumping elevation===========>
Required volume to be pumped================>
Actual volume planned to be purnped==========>
Min. thickness of soil liner when required==>
7. DESIGNED BY: OV D BY:
DATE: *q
d'5;� ; �DATE
4 -4, -1 q
NOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:—
180 days
7.0 inches
7.0 inches
1.0 feet
2.5 : 1
324.0 feet
182.0 feet
49.4 feet
39.7 feet
382056 cu. ft.
402860 cu. ft.
feet
45.8 feet
feet
45.7 feet
251775 cu. ft.
264292 cu.ft.
47.8 feet
368462 cu. ft.
368328 cu. ft.
95883 cu. ft.
104035 cu. ft.
1.4 feet

LAGOON DESIGN
Operator
James F. Naylor
County:
Sampson
Distance
to nearest residence (other
than owner):
1. AVERAGE LIVE WEIGHT
(ALW)
0
sows (farrow to
finish)
x
1417
lbs
0
sows (farrow to
feeder)
x
522
lbs
1224
head (f inishing
only)
x
135
lbs
0
sows (farrow to
wean)
x
433
lbs
0
head (wean to feeder)
x
30
lbs
Describe other :
Date: 02/12/96
Existing feet
0 lbs
0 lbs
165240 lbs
0 lbs
0 lbs
0
Total Average Live Weight 165240 lbs
2. MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
Volume 165240 lbs. ALW x Treatment Volume (CF)/lb. ALW
Treatment Volume(CF)/lb. ALW 1 CF/lb. ALW
Volume 165240 cubic feet
3. STORAGE VOLUME FOR SLUDGE ACCUMULATION
. Volume = 0.0 cubic feet ?eR Qwc4aves Rr--q;AG-5T-.
4. TOTAL DESIGNED VOLUME
Inside top length (feet) -------------------- 260.0
Inside top width (feet) --------------------- 170.0
Top of dike elevation (feet) ---------------- 49.3
Bottom of lagoon elevation (feet) ----------- 36.6
Freeboard (feet) ---------------------------- 1.0
Side slopes (inside lagoon) ----------------- 3.0 1
Total design volume using prismoidal formula
SS/END SSIEND SSISIDE SS/SIDE LENGT WIDT DEPTH
3.0 3.0 3.0 3.0 254.0 164.0 11.7
AREA OF TOP
LENGTH * WIDTH
254.0 164.0 41656 (AREA OF TOP)
AREA OF BOTTOM
LENGTH * WIDTH
183.8 93.8 17240 (AREA OF BOTTOM)
AREA OF MIDSECTION
LENGTH WIDTH * 4
218.9 128.9 112865 (AREA OF MIDSECTION 4)
CU. FT. (AREA TOP + (4*AREA MIDSECTION) + AREA BOTTOM] DEPTH/6
41656.0 112864.8 17240.4 1.9
Total Designed Volume Available 334934 CU. FT.

:5. TEMPORARY STORAGE REQUIRED
DRAINAGE AREA:
Lagoon (top of dike)
Length * Width =
260.0 170.0 44200.0 square feet
Buildings (roof and lot water)
o.o square feet Describe this area.
TOTAL DA 44200.0 square feet
Design temporary storage p riod to e 180 days.
5A. volume of waste produced
Feces urine production in gal./day per 135 lb. ALW 1.37
Volume 165240 lbs. ALW/135 lbs. ALW * 1.37 gal/da 180 days
Volume 301838 gals. or 40352.7 cubic feet
5B. Volume of wash water
This is the amount of fresh water used for washing floors or volume
of fresh water used for a flush system. Flush systems that recirculate
the lagoon water are accounted for in 5A.
volume = 0.0 gallons/day 180 days storage/7.48 gallons
per CF
Volume = 0.0 cubic feet
5c. Volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds evaporation by largest amount.
180 days excess rainfall 7.0 inches
Volume = 7. 0 in * DA / 12 inches per foot
Volume = 25783.3 cubic feet

5D. Volume of 25 year - 24 hour storm
Volume = 7. 0 inches / 12 inches per foot * DA
Volume = 25783.3 cubic feet
TOTAL REQUIRED TEMPORARY STORAGE
5A.
40353
cubic
feet
5B.
0
cubic
feet
5C.
25783
cubic
feet
5D.
25783
cubic
feet
TOTAL
91919
cubic
feet
6. SUMMARY
Temporary storage period====================
180
days
Rainfall in excess of evaporation===========
7.0
inches
25 year - 24 hour rainfall==================
7.0
inches
Freeboard===================================
1.0
feet
Side
3.0
: 1
Inside top length===========================
260.0
feet
Inside top
170.0
feet
Top of dike elevation=======================
49.3
feet
Bottom of lagoon elevation==================
36.6
feet
Total required volume=======================
257159
cu. ft.
Actual design volume========================
334934
cu. ft.
Seasonal high watertable elevation (SHWT)===
42.6
feet
Stop pumping
43.9
feet
Must be > or = to the SHWT elev.==========
42.6
feet
Must be > or = to min. req. treatment el.=
42.6
feet
Required minimum treatment volume===========
165240
cu. ft.
Volume at stop pumping elevation============
174903
cu. ft.
Start pumping
45.9
feet
Must be at bottom of freeboard & 25 yr. rainfall
Actual volume less 25 yr.- 24 hr. rainfall==
309151
cu. ft.
Volume at start pumping elevation===========
242017
cu. ft.
Required volume to be pumped================
66136
cu. ft.
Actual volume planned to be pumped==========
67114
cu-.- ft.
Min. thickness of soil liner when required==
1.9
feet
APPROVED BY:
7. DESIGNED BY: M, pl,�IVA Al�qms W J17
DATE: 211-31% DATE:
NOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:

Operator: Robert Naylor #3
County: Sampson
Distance to nearest residence (other than owner):
1. AVERAGE LIVE WEIGHT (ALW)
0
sows (farrow to finish)
0
sows (farrow to feeder)
1224
head (finishing only)
0
sows (farrow to wean)
0
head (wean to feeder)
Describe other:
Date: 04/26/19
1500.0 feet
x 1417 lbs.
0
lbs
x 522 lbs.
0
lbs,
x 135 lbs.
165240
lbs
x 433 lbs.
0
lbs
x 30 lbs.
0
lbs
0
Total Average Live Weight
2. MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
Volume = 165240 lbs. ALW x Treatment Volume(CF)Ilb. ALW
Treatment Volume(CF)/Ib. ALW = 1 CF/lb. ALW
Volume = 165240 cubic feet
3. STORAGE VOLUME FOR SLUDGE ACCUMULATION
Volume = 0.0 cubic feet
4. TOTAL DESIGNED VOLUME
165240 lbs
Inside top length
220.0
Inside top width (feet)---------
110.0
Top of dike elevation (feet) — -----
50.0
Bottom of lagoon elevation (feet) ---------- —
41.2
Freeboard (feet) ---------------------
1.0
Side slopes (inside lagoon) — ---------- — ----
2.0 :1
Total design volume using prismoidal formula
SS/ENDI SS/END2 SS/SIDE1 SS/SIDE2 LENGTH
WIDTH DEPTH
2.0 2.0 2.0 2.0 216.0
106.0 7.8
AREA OF TOP
LENGTH *WIDTH
216.0 106.0
AREA OF BOTTOM
LENGTH * WIDTH
184.8 74.8
AREA OF MIDSECTION
LENGTH * WI DTH * 4
200.4 90.4
22896 (AREA OF TOP)
13823 (AREA OF BOTTOM)
72465 (AREA OF MIDSECTION * 4)
CU. FT.= [AREA TOP+ (4*AREA MIDSECTION) +AREA BOTTOM] * DEPTI-116
22896.0 72464.6 13823.0 1.3

Total Designed Volume Available =
5. TEMPORARY STORAGE REQUIRED
DRAINAGE AREA:
Lagoon (top of dike)
Length Width
220.0 110.0
24200.0 square feet
Buildings (roof and lot water)
141939 CU. FT
0.0 square feet Describe this area.
TOTAL DA 24200.0 square feet
Design temporary storage period to dod to b e 0 days.
5A. Volume of waste produced
Feces & urine production in gal./day per 135 lb. ALW 1.37
Volume = 165240 Ibs.ALW1135Ibs.ALW*1.37gaI1day 0 days
Volume = 0 gals. or 0.0 cubic feet
5B. Volume of wash water
This is the amount of fresh water used for washing floors or volume
of fresh water used for a flush system. Flush systems that recirculate
the lagoon water are accounted for in 5A.
Volume 0.0 gallons/day 0 days storage/7.48 gallons
per CF
Volume = 0.0 cubic feet
5C. Volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds evaporation by largest amount.
0 days excess rainfall 7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
Volume = 14116.7 cubic feet
5D. Volume of 25 year - 24 hour storm

Volume = 7.0 inches / 12 inches per foot * DA
Volume = 14116.7 cubic feet
TOTAL REQUIRED TEMPORARY STORAGE
5A. 0 cubic feet
5B. 0 cubic feet
5C. 14117 cubic feet
5D. 14117 cubic feet
TOTAL 28233 cubic feet
6. SUMMARY
Temporary storage period====================>
0 days
Rainfall in excess of evaporation===========>
7.0 inches
25 year - 24 hour rainfall==================>
7.0 inches
Freeboard===================================>
1.0 feet
Side
2.0 : 1
Inside top length===========================>
220.0 feet
Inside top width============================>
110.0 feet
Top of dike elevation=======================>
50.0 feet
Bottom of lagoon elevation==================>
41.2 feet
Total required volume=======================>
193473 cu. ft.
Actual design volume========================>
141939 cu. ft.
Seasonal high watertable elevation (SHWT)===>
feet
Stop pumping
48.4 feet
Must be > or = to the SHWT elev.==========>
feet
Must be > or = to min. req. treatment el.=>
47.2 feet
Required minimum treatment volume===========>
165240 cu. ft.
Volume at stop pumping elevation============>
127769 cu. ft.
Start pumping
48.4 feet
Must be at bottom of freeboard & 25 yr. rainfall
Actual volume less 25 yr, 24 hr. rainfall==>
127822 cu. ft.
Volume at start pumping elevation===========>
127769 cu. ft.
Required volume to be pumped================>
14117 cu. ft.
Actual volume planned to be pumped==========>
0 cu. ft.
Min. thickness of soil liner when required==>
1.3 feet
7. DESIGNED BY: APP OVED B
APP, 0
DATE: E:
NOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:
4V 41

Ope ra tu 1'. ROBE: R"r r4AYLOR ity- C 0 D r'l ty �
SAMPSON
0 a tc. .
12, / 1S / 9dl
Distance to nearest residence (other
than
owne)r) -
IS00.0
feet-
1. AVERAGE LIVE WEIGH-F (ALW)
0 sow!.-., (farrow to finish)
X
i4w
lb6.
0
ibs
0 Sows (farrow to feeder)
x
2 ""
lbr—
0
lbc,
:30 7 head (finishing only)
x
135
lbi5.
4 9 5 7 "? 0
IbG
0 kfarrow to wean)
x
11 -_; �3
lb�'.
Vj
1J)"
0 head (wean to feeder)
x
30
lbs.
0
1. b
Describe othei
0
TOC�41 Average Live Weight 057-2'() Xb-�
2. MINIMUM REQUIRFL) IREI-MIENT VOLOME OF $-A00014
Volume = 4967210 lbs. ALW x TreatAierit (-',LW
Treatrrlt�nl- Volume(CF)/ft). A LW I Cr/lb. ro.w
VOILIHN-1 �ft 495720 cubic Net
3. ',:'.-rORA(iE VOLOME FOR '-',LAJOCjf--' ACCUMULAHON
Volume = 0.0 CLlt;i(.-: fCet
4. TOIAL OESIGNED VOLUME
Inside top length
440. 0
Inside top width
�100. 0
'rop of dike eievation
104. 5
Bottom of lagoon elevation
91.F$
Freeboard
1.0
Side slopes (inside
3. 0
Fol.al design volume ucing prismoidal formula
3 j
'S 'ENO1 S;/END-2 SS/S1OF1 SS/SIDE2 LENGT H
W1 0 r1i P f H
3.0 3.0 3.0 3.0 434 .0
194. 0 1 0
ARCA Of'
TOP
U-INGTH
I W101+1
434 . 0
1911.0
ARrA OF
BOTTor-'I
UNGTH
-1 WIDTH
" 16 2, . 0
122 , th
Eml% (mu, OF: Top)
144164 (AREA OF E301,101,I)
AREA OF 11ID-SECTION
LENGTH W101H ji
,198. 0 158.0 251536 (ARFA OF: MIOSECTION A jj)
CU. FT. [ARLA TOP + (4'ARt"A NIDSECUON) * hREA BOHWI] OL-P F14/6
8'1196. 0 251-536.0 114164. a 0
Total Volume Available = 769/92 C U . F -1 .
MOOBOI181688

5D. VOjUfnP of 2& yeeil- -- 291 11OLII- '�-t..01 IT[
VOILime = 7.5 inches / 12 Incht,,s pet, foot '; Uri
Voluffic, = 55000.0 cubic feet
101AL REQUIRED TEMPORARY SYORAGF
SA.
121058
cubic
Teet:
B .
0
Cubic
feet
51333
cubi-c
I - u, e 1;
55000
cubic
feet
TOTAL 227392 cubic feet
6. SUMMARY
Temporary storage 180 days
Rainfall in exceyss of 1-0 i'llche',
25 year - 211 hour 7 .5 n c h e
F r e e b o a r d 1.0 t:
Side 3.0
Inside top 440.0 ue. L.
In -side top 200-0 feet
Top of dike 104.6 f eet
Bottom of lagoon 91.6 feeL
Total reqUit-Eld 1213112 Cu. ft.
979�1 Cu. f t. A
Ac tua , L dei5lgn 7 5 1
Seasonal high watertable elevatIon (SHWT)-==> 96,8 f et- t-
Sr,ap pumping A
1 100,2 feet
Must be > or = w ue sHw,r
96.8 feet
Mw,t be > or = to min. req. treataiient el�=", 9 7 feet
Required minirrium f-reatftent 496720 Cu . I T:.
VoLume at stop Pumping 5@2031 cu. f L.
Start pumping elev.= 10 5 f e C. t
MUSIL be at bottom of freeboard & 25 yr. rainfall
Actual Volume less 26 yr.- '24 hr. ra--1Lntal1.==> eOL1792 CLJ. -I-t;,
Volume at �,tart pumping 6 Y 7 4 68 cu. lzt.
Required volume to be 172392 cu. ft.
Actual volume planned to be 175J137 Cu. ft.
Min. thickness of' soii 11ner when required�> 1.9 f erat
7. OESIGNEO BY; APPROVEO BY:
DATE.
OA I' L -.
NOTL�� SEE AITACHED WASTE U-1-ILIZA11ON PLAN
COMMEN f S -
M00801181690

AVI n13 AID
Opelrator-, Nr k i I sp
Date- _21 j, I
'5/94
Dislilo neLarest reisiu`,Lirict� (Q-11het dianowner)-
-ows(farrowt finishl-==—
to
S, ok.ys (SE.Irrov., to
head (fin!-,,hingonl�)-=====
3672
sows (farrow to wean).
heald (wean tofe-.d,2r%:=-=-=
Ava lv,�W ight for othqr nnmrntinnc_,flk,_-
11 Aqi
Storage volume for sludge accum. (cu. ft.):=
T_ . I r 1
ah-tient Volume (min- I cu- ft./lb.'
1 rx
r,
L f Y­2ar - 2,11 H o ur Rai nfal I n -) = = =
-7 Jz.
j ­i
Rai nfal 1 in avraee nf eNtanorsation (in
7 0
Drainage area ot bu Hchnas lots (sq. ft..)=
W I r I
WILMIL
y A U! WdViWdlet k�0110[N�Qjy)
T_
I tTrIpoitary GALoraga- pedi Od WrLYG)
-,P n
Side G10130'S (Inside
3.0 i
in'side top iLing[JI M.) -- — — — — — — — — — — — — — — — — — -
A A F% r%
Tfu.0
Insid
I a Ue
Tot-, of dike elcivation
I n4 i�
Bottom of lagoon elevation ft-):
91
Soasonal high watoi table(SHWT)
96-8
Total requirod �,101,ujjjra- -711311 1) .1
VATnT AL VOL C). K_-k-Ar
Actuai CIPSign VOILPle: _M9,AP f-11 ff
C - -
I Yk
Stop pumping el.(::. or to 9 G. 8 f L S H V-VT)
00. 2
(1. Or to 97.15 ft.Min.)
Rle-quired nih-Ir-urn trecitment volull-rie- Mr.70f)
ill 61-il ill MQAA ".ir _iA
*-A-TPKA-r '%iru n v -k-k-
, i Of. . . . ­F I- — , '.
VOILD-no- tit %top pumping PIPwition 5-020,31 ri I- it
1 W - If In
Startpumping
102.5
-7-7 A f-' — A
Volume at Start pumping elqsfation: 61 1468 cu. It.
*,Ps-,rnurF,,M sron.
Actual volunie lecs f2_5yr—)d6r rairr 7nA70')
1 ri A O'TD/-
NOTP - Varity that. tpnip !itorngp, is adociP j1#0
Req, volume to IDLA Pumpoct li� VZ Cu. It.
""'TENIFF. VOL
Actual volume to be 1) uniped: 1715437 cu. ft.
-1 01 7_70/
t 11 io
14008011$1687

OPERATION & MAINTENANCE PLAN
proper lagoon liquid management should be a year-round priority, It is especially
Important to manage levels so that you do not have problems during extended rainy and
wet periods,
Maximum storage capacity should be available in the lagoon for periods when the
receiving crop is dormant (such as wintertime for bermudagrass) or when there are
extended rainy spells such as the thunderstorm season in the summertime. This means
that at the first signs of plant growth in the later winter/early spring, irrigation according to
a farm waste management plan should be done whenever the land is dry enough to
receive lagoon liquid. This will make storage space available in the lagoon for future wet
periods. In the late summer/early fall the lagoon should be pumped down to the low
marker (see Figure 2-1) to allow for winter storage. Every effort should be made to
maintain the lagoon close to the minimum liquid level as long as the weather and waste
utilization plan will allow it.
Waiting until the lagoon has reached its maximum storage capacity before starting to
* ate does not leave room for storing excess water during extended wet periods. U
ir"g
Overilow from the lagoon for any reason except a 25-year, 24-hour storm is a violation of
State law and subject to penalty action.
The routine maintenance of a lagoon involves the following:
Maintenance of a vegetative cover for the dam.
Fescue or common bermudagrass are the most common vegetative
covers, The vegetation should be fertilized each year, if needed, to
maintain a vigorous stand. The amount of fertilizer applied should be
based on a soils test, but in the event that it is not practical to obtain
a soils test each year,.the lagoon embankment and surrounding areas
should be fertilized with 800 pounds per acre of 10- 10- 10, or
equivalent. 11
Brush and trees on the embankment must be controlled, This may be,
done by mowing, spraying, grazing, chopping, or a combination of
these practices. This should be done at least once a year and
possibly twice in years that weather conditions are favorable for
heavy vegetative growth.
NOTE: If vegetation is controlled by spraying, the herbicide must not be allowed to enter
the lagoon water. Such chemicals could harm the bacteria in the lagoon that are treating
the waste.
Maintenance inspections of the entire lagoon should be made during the initial filling of
the lagoon and at least monthly and after major rainfall and storm events, Items to be
checked should include, as a minimum, the following:
Waste Inlet Pipes, Recycling Pipes, and Overflow Pipes ---look for:
I . separation of joints
2. cracks or breaks
3. accumuladon of salts or minerals
4. overall condition of pipes

Lagoon surface ---look for:
1. undesirable vegetative growth
2.
floating or lodged debris
Embankment --- look for:
I . settlement, cracking, or "jug" holes
2. side slope stability ---slumps or bulges
3. wet or damp areas on the back slope
4. erosion due to lack of vegetation or as a result of wave action
5. rodent damage
Larger lagoons may be subject to liner damage due to wave action caused by strong
winds. These waves can erode the lagoon sidewalls, thereby weakening the lagoon dam.
A good stand of vegetation will reduce the potential damage caused by wave action. If
wave action causes serious damage to a lagoon sidewall, baffles in the lagoon may be
used to reduce the wave impacts,
Any of these features could lead to erosion and weakening of the dam. If Your lagoon has
any of these features, you should call an appropriate expert familiar with disign and
construction of waste lagoons. You may need to provide a temporary fix if there is a threat
of a waste discharge, However, a permanent solution should be reviewed by the -
technical expert. Any digging into a lagoon dam with heavy equipment is a serious
undertaking with potentially serious consequences and should not be conducted unless
recomrhended by an appropriate technicad expert,
Transfer Pumps --- check for proper operation of:
I . recycl' !ng pumps.
2. irrigation pumps
Check for leaks, loose fittings, and overall pump operation. An unusually loud or grinding
noise, Or a large amount of vibration, may indicate that the pump is in nee'd or repair or
replacement.
NOTB: Pumping systems should be inspected and operated frequently enough so that.you
are norcompletely "surprised" by equipment failure, You should perform your pumping
system maintenance at a time when your lagoon is at its low level, This will allow some
safety time should major repairs be required. Having a nearly full lagoon is not the time
to think about switching, repairing , or borrowing pumps. Probably, if your lagoon is full,
your neighbor's lagoon is full also. You should consider maintaining an inventory of spare
parts or pumps.
Surface water diversion features are designed to carry all surface
drainage waters (such as rainfall runoff, roof drainage, gutter outlets,
and parking lot runoff) away from your lagoon and other waste
treatment or storage structures, The only water that should be
coming from your lagoon is that which comes from your flushing
(washing) system pipes and the rainfall that hits the lagoon directly.
You should inspect your diversion system for the following:
1 adcq�jatc vcgetatlon
2. diversion rapacity
3. ridge berm height

Identified problems should be corrected promptly. It is advisable to inspect your system
during pr immediately following a heavy rain, If technical assistance is needed to
determine proper solutions, consult with appropriate experts.
You should record the level of the lagoon just prior to when rain is predicted, and then
record the level again 4 to 6 hours after the rain (assumes there is no pumping). This will
give you an idea of how much your lagoon level will rise with a certain rainfall amount
(You must also be recording your rainfall for this to work), Knowing this should help in
planningIrrigation applications and storage, If your lagoon rises excessively, you may
have an inflow problem from a surface water diversion or there may be seepage into the
lagoon from the surrounding land,
Lagoon Operation
Startup:
Immediately after construction establish a complete sod cover on bare soil
surfaces to avoid erosion.
2. Fill new lagoon design treatment volume at least half full of waterl-..before
waste loading begins, taking care not to erode lining or bank slopees.
I Drainpipes into the lagoon should have a flexible pipe extender on the
end of the pipe to discharge near the bottom of the lagoon during initial
filling or another means of slowing the incoming water to avoid erosion of
the lining.
4. When possible, begin loading new lagoons in the spring to maximize
bacterial establishment (due to warmer weather).
5. It is recommended that a new lagoon be seeded with sludge from a healthy
working swine lagoon in the amount of 0.25 percent of the full lagoon
liquid volume, This seeding should occour at least two weeks prior to the
addition of wastewater.
-6. Maintain a periodic check on the lagoon liquid PH. If the pH falls below
7.0, add agricultural lime at the rate of 1 pound per 1000 cubic feet of
lagoon liquid volume until the PH rises above 7.0. Optimum lagoon liquid
PH is between 7.5 and 8.0.
7. A dark color, lack of bubbling, and excessive odor signals inadequate
biological activity, Consultation with a technical specialist is recommended
if these conditions occur for prolonged periods, especially during the warm
season.
Loading:
'�' d.
The more frequently and regularly that wastewater is added to a lagoon, the better the
lagoon will function. Flush systems that wash waste into the lagoon several times daily are
optimum for treatment, Pit recharge systems, in which one or �nore buildings are drained
and recharged each day, also work well,

40
Practice water Conservation--- minimize building water usage and
spillage from leaking waterers, broken pipes and washdown through
proper maintenance and water conservation,
Minimize feed wastage and spillage by keeping feeders adjusted. This
will reduce the amount of solids entering the lagoon
Management:
Maintain lagoon liquid level between the permanent storage level and
the full temporary storage level.
Place visible markers or stakes on the lagoon bank to show the
minimum liquid level and the maximum liquid lever (Figure 2-1).
Start irrigating at the earliest possible date in the spring based on
nutrient requirements and soil moisture so that temporary storage
will be maximized for the summer thunderstorm season. Similarly,
irrigate in the late summer/early fall to provide maximum lagoon
storage for the winter.
The lagoon liquid level should never be closer than I foot to the lowest
point of the dam or embankment.
Do not pump the lagoon liquid level lower that the permanent storage
level unless you are removing sludge,
LDcate float pump intakes approximately 18 inches underneath the liquid
surface and as far away from the drainpipe inlets as possible.
Prevent additions of bedding materials, long-stemmed forage or vegetation,
molded feed, plastic syringes, or other foreign materials into the lagoon.
Frequently remove solids from catch basins at end of confinement houses or
wherever they are installed.
Maintain strict vegetation, rodent, and varmint control near lagoon edges.
Do not allow trees or large bushes to grow on lagoon dam or embankment.
Remove sludge from the lagoon either when the sludge storage capacity is
full or before it fills 50 percent of the permanent storage volume. -
If animal production is to be terminated, the owner is responsible for
obtaining and implementing a closure plan to eliminate the possibility of a
pollutant discharge.
Sludge Removal:
P,ate of lagoon sludge buildup can be reduced by:

proper lagoon sizing,
mechanical solids separation of flushed waste,
gravity settling of flushed waste solids in an appropriately designe4 basin, or
rainimizing feed wastage and spillage.
IAgoon sludge that is removed annually rather than stored long term will:
have more nutrients,
have more odor, and
require more land to properly use the nutrients,
Removal techniques:
Hire -a custOrn applicator,
Mix the sludge and lagoon liquid with a chopper -agitator impeller
pump through large -bore sprinkler irrigation system onto nearby cropland;
and soil incorporate,
Dewater the upper part of lagoon by irrigation onto nearby cropla-nd or
forageland; mix remaining sludge; pump into liquid sludge applicator; haul
and spread onto cropland or forageland; and soil incorporate,
Dewater the upper part of lagoon by irrigation onto nearby cropland or
forageland; dredge sludge from lagoon with dragline or sludge barge; berm
an area beside lagoon to receive the sludge so that liquids can drain back
into lagoon; allow sludge to dewater; haul and spread with manure spreader
onto cropland or forageland; and soil incorporate.
Regardless of the method, you must have the sludge material analyzed for waste
constituents just as you would your lagoon water. The sludge will contain different
nutrient and metal values from the liquid. The application of the sludge to fields will be
limited by these nutrients as well as any previous waste appli tions to that ield d crop
ca f an
requirement. Waste application rates will be discussed in detail in Chapter 3.
When removing sludge, you must also pay attention to the liner to prevent darnag . e. Close
attention by the pumper or drag -line operator will ensure that the lagoon liner remains
intact. If you see soil material or the synthetic liner material being disturbed, you, should
stop the activity immediately and not resume until you are sure that the sludge can be
removed without liner injury. If the liner is damaged it must be repaired as soon as
possible.
Sludge removed from the lagoon has a much higher phosphor -us and heavy metal content
than liquid. Because of this it should probably be applied to land with low phosphorus
and metal levels, as indicated by a soil test, and incorpprated to reduce the chance .9f
erosion. Note that if the sludge is applied to fields with very high soil -test phosph6r'es, it
should be applied only at rates equal to the crop removal of phosphorus. As with other
wastes, always have your lagoon sludge analyzed for its nutrient value,
The application of sludge will increase the amount of odor at the waste application site,
Extra precaution should be used to observe the wind direction and other conditions which
could increase the concern of neighbors.

Possible Causes of Lagoon Failure
Lagoon failures result in the unplanned discharge of wastewater from the structure. Types
Of failures include leakage through the bottom or sides, overtopping, and breach"'of the
dam. Assuming proper design and construction, the owner has the responsibility for
ensuring structure safety, Items which may lead to lagoon failures include:
Modification of the lagoon structure --- an example is the placement of a pipe
in the dam without proper design and construction. (Consult an expert in
lagoon design before placing any pipes in dams.)
Lagoon liquid levels --- high levels are a safety risk,
Failure to inspect and maintain the dam,
Excess surface water flowing into the lagoon.
Liner integrity --- protect from inlet pipe scOunn
,qu 9,, damage during sludge
removal, or rupture from lowering lagoon I Id evel below groundwater
table.
NOTE: If lagoon water is allowed to overtop the dam, the moving water will soon cause
gullies to form in the dam. Once this damage starts, it can quickly cause a large discharge
of wastewater and possible dam failure.