HomeMy WebLinkAbout040036_02 Site Eval and Dam Safety_20230607APPENDIX 8,3
USDA
United States Natural NC-CPA-17
Department of Resources Rev. Dec. 2000
Agriculture Conservation Page 1 of 2
Service
WASTE MANAGEMENT FACILITY SITE EVALUATION
GENERAL INFORMATION rxelzy 13
Name 1 Location l�
Address i47LI ® r
t _ )
Telephone 70 Y!2i/ Size of Operation (animal units)
Q�
LOCATION DATA
DISTANCE FROM NEAREST RESIDENCE NOT OWNED BY PRODUCER
%FT
DISTANCE FROM NEAREST PUBLIC FACILITY (school, church, etc...)
IS SITE WITHIN 100-YEAR FLOODPLAIN?
YES_ NO�
If yes, NRCS cannot provide assistance.
"BLUE
IS SITE AT LEAST 100 FT. FROM A LINE" PERENNIAL STREAM?
YES Y NO_
If no, site must be relocated.
DOES SITE MEET MINIMUM STATE SETBACK REQUIREMENTS FROM A
YES VINO
WELL SUPPLYING WATER FOR HUMAN CONSUMPTION?
If no, NRCS cannot provide assistance.
IS SITE WITHIN I -MILE ZONING JURISDICTION OF A MUNICIPALITY?
YES_ NO V
If yes, landowner should consult with a local zoning board about required
permits. Permits must be obtained prior to design approval.
A/
ARE UTILITY LINES LOCATED IN THE CONSTRUCTION AREA?
YES_ NO
If yes, see Part 503 of the National Engineering Manual for policy.
(Copies of maps or other reference material may be attached to site evaluation.)
WETLANDS
WILL PROJECT INVOLVE CLEARING VEGETATION, IMPROVING DRAINAGE, OR FILLING LOW GROUND?
If yes, producer should have a "Certified Wetland Determination" on file for the work site. YES_ NO
Producers shall complete forms CPA-038 and AD-1026 to obtain Certified Wetland Determinations.
WILL THE PROJECT INVOLVE DIRECT OR INDIRECT MANIPULATION OF WETLAND SOILS,
PLANTS, OR HYDROLOGY? YES N _
IF WETLANDS WILL BE MANIPULATED, HAS THE PRODUCER BEEN ADVISED THAT THEY MUST NOT WORK IN
WETLANDS UNTIL THEY HAVE RECEIVED INFORMATION FROM THE U.S. ARMY CORPS OF ENGINEERS AND THE
NC DIVISION OF WATER QUALITY CONCERNING PERMIT REQUIREMENTS? YES NO_
NRCS WILL PROVIDE TECHNICAL ASSISTANCE FOR PROJECTS IMPACTING WETLANDS ONLY UNDER THE
FOLLOWING CIRCUMSTANCES:
a.) NRCS has determined that a suitable non -wetland site is not available YES— NO
b.) The most practical site for the project involves wetlands. NRCS has determined this site to be most practical considering the
change of wetland functions, the suitability of the resource for this project, the costs, and best available technology. The producer,
according to a mitigation plan provided or approved by NRCS, shall mitigate unavoidable impacts to wetlands.
YES NO
ODOR CONTROL
HAS ODOR CONTROL BEEN DISCUSSED WITH PRODUCER:
■ PREDOMINANT WIND DIRECTION? �YES NO
• PRE -CHARGING LAGOON WITH FRESH WATER TO AT LEAST %2 OF THE CAPACITY?I �'I /' AYES NO
■ USING GOOD SOUND JUDGEMENT IN LAND APPLICATION OF WASTE? YES V/NO
APPENDIX 8.3
NC-CPA-17
Rev. Dec. 2000
Page 2 of 2
OTHER ENVIRONMENTAL FACTORS
If the answer to any of the following is YES, NRCS may provide technical assistance according to its
General Manual policies. Contact the resource specialist for assistance, if needed.
USING THE FOTG LIST OF ENDANGERED & THREATENED SPECIES AS A GUIDE, IS IT OBVIOUS THAT THE SITE
PROVIDES HABITAT FOR A LISTED SPECIES? YES NO-V
IS A DESIGNATED NATURAL SCENIC AREA INCLUDED IN THE PLANNING AREA, OR YES NO�
WILL PLANNED ACTIONS IMPACT ON AN ADJACENT NATURAL, SCENIC AREA?
HAS A CULTURAL RESOURCt�,9.EVIEW BE PE ORMED FOR TA, PRIOR TO STARTING ANY GROUND
T
DISTURBING ACTIVITIES? 10 I W & � OtPC {.►f11 YES NO
ARE THERE PRIME, UNIQUE, STATE OR LOCALLY IMPORTANT YES NO--V/-
FARMLANDS IN THE OPERATING UNIT?
WILL THE ACTION RESULT IN SODBUSTING?
YES NO A/
WASTE MANAGEMENT
DOES PRODUCER OWN ENOUGH LAND TO PROPERLY APPLY ALL WASTE INCLUDING YES VNO.
SLUDGE, EVEN THOUGH SLUDGE MAY BE ONLY APPLIED INFREQUENTLY? I
H IF NO, DOES PRODUCER AVE ACCESS TO MORE LAND? YES 0 NO_
IF LAND IS NOT OWNED BY PRODUCER, CAN PRODUCER GET AN AGRE N,T F 9QLi , YES �NO_
LAND ON WHICH WASTE WILL BE APPLIED? w u
(Attach Waste Utilization Plan to site evaluation.) I a e 1
SOIL INVESTIGATION (VALID ONLY IF SOIL INVESTIGATION SHEET ATTACHED)
IS SOIL SUITABLE FOR LAGOON? WCVS `(�'5-fDy'4n 4P— POOA
YES 1( NO
IS A LINER REQUIRED?
YES ty NO
TYPE OF LINER TO BE USED: CLAY BENTONITE SYNTHETIC
IF CLAY LINER IS TO BE USED, IS SUITABLE CLAY AVAILABLE ON SITE?
YES__\o/NO
IF CLAY IS NOT AVAILABLE ON SITE, DOES LANDOWNER HAVE ACCESS TO CLAY?
YES O
IS A CORE TRENCH REQUIRED? (Attach soil investigation sheet to site evaluation.)
YES NO
IS SUBSURFACE DRAIN TILE PRESENT? (If yes, tile must be removed or plugged.)
YES NO V
SITE APPROVED
�(_ � � tt iYES� jNO L _ (CONDITIONAL A/
COMMENTS r ^t fl / "e—
This site investigation is valid for twelve months from the date shown below. If construction has not been started
within twelve months, ew site investigation will be requ. d. /I
Signature Date U
" Changes in the local or state law or changes in the standard could require a new site investigation.
USDA
United States
Department of
Agriculture
Natural
Resources
Conservation
Service
WASTE MANAGEMENT FACILITY SITE EVALUATION
APPENDIX 8.3
NC-CPA-17
Rev. Dec. 2000
Page 1 of 2
GENERAL INFORMATION
Name � W �l" C, liYm ^9�7'C Location Cam'
/
Address f & �� '_ ��tJ�✓C
Telephone %i 57 Size of Operation (animal units)
LOCATION DATA
DISTANCE FROM NEAREST RESIDENCE NOT OWNED BY PRODUCER
_IV-040 T
DISTANCE FROM NEAREST PUBLIC FACILITY (school, church, etc...)
>1C 0 O0 FT
IS SITE WITHIN 100-YEAR FLOODPLAIN?
YES_ NOAZ�'
If yes, NRCS cannot provide assistance.
, /�
IS SITE AT LEAST 100 FT. FROM A `BLUE LINE" PERENNIAL STREAM?
YES V NO�
If no, site must be relocated.
DOES SITE MEET MINIMUM STATE SETBACK REQUIREMENTS FROM A
/
YES / NO_
WELL SUPPLYING WATER FOR HUMAN CONSUMPTION?
V—
If no, NRCS cannot provide assistance.
IS SITE WITHIN 1-MILE ZONING JURISDICTION OF A MUNICIPALITY?
YES_ NO
If yes, landowner should consult with a local zoning board about required
permits. Permits must be obtained prior to design approval.
ARE UTILITY LINES LOCATED IN THE CONSTRUCTION AREA?
YES_ NO_�/
If yes, see Part 503 of the National Engineering Manual for policy.
(Copies of maps or other reference material may be attached to site evaluation.)
WETLANDS
WILL PROJECT INVOLVE CLEARING VEGETATION, IMPROVING DRAINAGE, OR FILLING LOW GROUND? /
If yes, producer should have a "Certified Wetland Determination" on file for the work site. YES_ NO V
Producers shall complete forms CPA-038 and AD-1026 to obtain Certified Wetland Determinations.
WILL THE PROJECT INVOLVE DIRECT OR INDIRECT MANIPULATION OF WETLAND SOILS,
PLANTS, OR HYDROLOGY? YES NO_
IF WETLANDS WILL BE MANIPULATED, HAS THE PRODUCER BEEN ADVISED THAT THEY MUST NOT WORK IN
WETLANDS UNTIL THEY HAVE RECEIVED INFORMATION FROM THE U.S. ARMY CORPS OF ENGINEERS AND THE
NC DIVISION OF WATER QUALITY CONCERNING PERMIT REQUIREMENTS? YES NO
NRCS WILL PROVIDE TECHNICAL ASSISTANCE FOR PROJECTS IMPACTING WETLANDS ONLY UNDER THE
FOLLOWING CIRCUMSTANCES:
a.) NRCS has determined that a suitable non -wetland site is not available YES_ NOT
b.) The most practical site for the project involves wetlands. NRCS has determined this site to be most practical considering the
change of wetland functions, the suitability of the resource for this project, the costs, and best available technology. The producer,
according to a mitigation plan provided or approved by NRCS, shall mitigate unavoidable impacts to wetlands.
YES NO
ODOR CONTROL
HAS ODOR CONTROL BEEN DISCUSSED WITH PRODUCER:
■ PREDOMINANT WIND DIRECTION? YES NO
■ PRE -CHARGING LAGOON WITH FRESH WATER TO AT LEAST % OF THE CAPACITY? V // j��YEVNO()
USING GOOD SOUND JUDGEMENT IN LAND APPLICATION OF WASTE? YES
APPENDIX 8.3
NC-CPA-17
Rev. Dec. 2000
Page 2 of 2
OTHER ENVIRONMENTAL FACTORS
If the answer to any of the following is YES, NRCS may provide technical assistance according to its
General Manual policies. Contact the resource specialist for assistance, if needed.
USING THE FOTG LIST OF ENDANGERED & THREATENED SPECIES AS A GUIDE, IS IT OBVIOUS THAT THE SITE
PROVIDES HABITAT FOR A LISTED SPECIES? YES NO
IS A DESIGNATED NATURAL SCENIC AREA INCLUDED IN THE PLANNING AREA, OR YES NO /
WILL PLANNED ACTIONS IMPACT ON AN ADJACENT NATURAL SCENIC AREA?
HAS A CULTURAL RESOURC �5 APE ARMED FOR VIEW BED AREA, PRIOR TO STARTING ANY GROUND
DISTURBING ACTIVITIES? F'YC>, � 6� YES NO
ARE THERE PRIME, UNIQUE, STATE OR LOCALLY IMPORTANT YES NO__t,/
FARMLANDS IN THE OPERATING UNIT?
WILL THE ACTION RESULT IN SODBUSTING? YES NO�
WASTE MANAGEMENT ' /
DOES PRODUCER OWN ENOUGH LAND TO PROPERLY APPLY ALL WASTE INCLUDING YES NO
SLUDGE, EVEN THOUGH SLUDGE MAY BE ONLY APPLIED INFREQUENTLY?
IF NO, DOES PRODUCER HAVE ACCESS TO MORE LAND? YES / NO
IF LAND IS NOT OWNED BY PRODUCER, CAN PRODUCER GET AN AGREEMENT FOR YES r/ NO
( AND ON WHICH WASTE WILL BE APPLIED? <' > r
Attach Waste Utilization Plan to site evaluation.) e —4(�✓ Wu
SOIL INVESTIGATION (VALID ONLY IF SOIL
/INVESTIGATIONSHEET ATTACHED)
IS SOIL SUITABLE FORI,�4fl86id? VJG-.STC r-�,P9V%A YES ✓if�NO
IS A LINER REQUIRED? YES NO
TYPE OF LINER TO BE USED: CLAY ` V/ `J BENTONITE SYNTHETIC
IF CLAY LINER IS TO BE USED, IS SUITABLE CLAY AVAILABLE ON SITE? YES_NO
IF CLAY IS NOT AVAILABLE ON SITE, DOES LANDOWNER HAVE ACCESS TO CLAY? YES -NO �s
IS A CORE TRENCH REQUIRED? (Attach soilnxve�stj�a 'on sheetto Vie_ valu is � o
IS SUBSURFACE DRAIN TILE PRESENT? (If yes, tile must be removed or plugged.) YES NO L�
SITE APPROVED
YES NO CONDITIONAL k/
COMMENTS
This site investigation is v 'd for twelve months from the date shown below. If construction has not been started
within twelve months, a e site investigation will be required. /1
r f
Signature Date v
1 Changes in the local or state law or changes in the standard could require a new site investigation.
White Rock Farms, LLC
Hazard Classification Commentary for Waste Storage Ponds #2 and #3
May 2023
By: Samuel Bingham, PE
See information attached for waste pond #2 and waste pond #3. Breach inundation maps were
not prepared for the dams but based on valley and road characteristics, the dams are obviously low
hazard. Inundation breach areas would be confined to the floodplain below the dams.
Waste Pond #2
Planned water depth to top of dam —12.2 feet
Storage at emergency spillway elevation —11.2 feet
Maximum planned water storage depth below the 25-year emergency storage depth —10 feet
Storage Volume at Top of Dam Elevation — 9.6 ac-ft
Maximum Height from top of dam to back toe of dam — 473.0-442.0 = 31 feet
Estimated Breach Qmax = 1,700 cfs
State Road 1220 (Long Pine Church Road) is located 8,800 feet downstream of proposed waste pond #2.
The floodplain width at state road is 800 feet wide. Using Lidar data, the low point of road is estimated
to be 305.5 feet.
Surface area upstream of road at 305.5 elevation — 15.09 acre
Surface area at elevation 304.0 — 3.88 acre
Surface area at elevation 302.0 — 0.08 acre
Estimated storage upstream of road = 1.5' x —9.485 acres + 2' x —1.98 acres = 18.18 ac ft
2 culverts in Dead Fall Creek — each culvert is 5' diameter.
2 culverts in ditch on east side of bottomland — 3' diameter and 4' diameter
The floodplain downstream of waste pond #2 is cropland and woodland prior to reaching the
state road. See the drawing attached showing potential breach hazard flow path below the dam.
Considering the width of valley downstream of dam and the slope of the flood plain, the maximum
breach Q of 1700 cfs would flow at less than 1 foot of depth down the valley once a breach reaches the
Deadfall Creek floodplain. Based on the attenuation of a potential breach down the valley, the valley
storage above Long Pine Church Road being significantly greater than maximum pond storage at top of
dam elevation and the size and number of culverts at the state road, the hazard classification for waste
pond #2 is low (a).
Waste Pond #3
Planned water depth to top of dam — 13.6 feet
Storage at emergency spillway elevation —12.6 feet
Maximum planned water storage depth below the 25-year emergency storage depth —12.0 feet
Storage Volume at Top of Dam Elevation —14.7 ac-ft
Maximum Height from top of dam to back toe of dam — 386.0-374.0 = 12 feet
Estimated Breach Qmax = 1,300 cfs
State Road (Rudolph Sikes Road) is located 11,900 feet downstream of proposed waste pond #3.
The floodplain width upstream of state road is 300 feet plus wide. Soil survey map show 500 feet plus
floodplain upstream of the state road. See the drawing attached showing potential breach hazard flow
path below the dam.
Rudolph Sikes Road crosses Clay Creek with a bridge. The bridge length is approximately 60 feet
long and 12 feet above the creek. The state road is currently closed due to flood damage to the bridge
according to signage at bridge. The road is very low use, and the dairy owner has doubts if the road will
ever open again. The bridge appeared to be several feet above the floodplain elevation.
The floodplain downstream of waste pond #3 is cropland and woodland prior to reaching the
closed state road. Considering the width of valley downstream of dam and the slope of the flood plain,
the maximum breach Q of 1300 cfs would flow at less than 1 foot of depth down the valley once a
breach reaches the Clay Creek floodplain. Based on the attenuation of a potential breach down the
valley, the valley storage above Rudolph Skies Road and the size of bridge over Clay Creek, the hazard
classification for waste pond #3 is low (a).
Waste Pond #2 to State Rd 1220
a 8,800 feet
F
z
Long Fine
--,`Waste Pond #2 to Deadfall Creek
Cemeter,
A.
A.
w 7,000 feet
❑
:
Waste Pond # v
Waste Pond #2 to Tribr:
830 feet .
Waste Pond #1
Waste Pond- #3 to Clay Creek
Sore
th Carolina
/74,300 feet
—
ERHELD C --_------
.,outh Carolina
-
_---_ _
'----------�_
Waste Pond #2J
.., —
-
ANSON
0
CHESTERFIELDS' '
Hornsboro/Mount Croghan
Quadrangles Topo Map
7.5 Minute, 2023
Waste Pond #3 to Rudolph Sikes Road
11,900 feet
'., HornSboxa.
Antioch
_
Cemetery
o,
F2 009
1500 0 1500
g000
4500
� o
— _
f
A
Scale 1' =
1500'
o
`e
White Rack Farms, LLc
MANAGEMENT SYSTEM
74 .opis Rod. P—hi-d, North C-1110
V,uhite Rock Farms, LLC
PotenItal Breach Hazard Flow Paths
- Anson County,..North Ccrokn0
RVASION
PRPIECT A:
CRAM BY 5CB
SCALE:
pAE 5f2023WAS'E
_°QSN _CA
4
SHEET NO. 1 OF 1-
FILENAME: F,re 1
5
C
10. Size of Waste Storage Pond #2
173.2'x283.2'
1.0 Freeboard
167.2' X 277.2'
3:1 1.2 Feet 25-year storage 3:1
160' x270'
10.0' normal storage
100'x210'
Normal storage volume below 25-year storage
Volume = 10.0/6[100x210 + 1601x270'+ 4(130x240)]
= 315,000 .cu ft = 2,356,000 gallons
Volume @ ESW Level -
Volume = 11.2/6[100x210 + 167.2x277.2 + 4(133.6x243.6)]
= 368,718 cu ft
Top of Dam Volume -
Volume = 12.2/6[100x210 + 173.2x283.2 + 4(136.6x246.6)]
416,411 cu ft = 9.6 ac-ft
11. Size of Waste Storage Pond #3
256. 6' x2 5 6. 6'
1.0 Freeboard
7 — 250.6' X 250.6'
0.6 Feet 25-year storage
247'x247'
3:1 12.0' normal storage 3:1
175'xl75'
Normal storage volume below 25-year storage
Volume = 12.0/6[175x175 + 247x247 + 4(21lx2ll)]
= 539,436 cu ft = 4,035,000 gallons
Volume @ ESW Level -
Volume = 12.6/6[175x175 + 250.6x250.6 + 4(212.8x212.8)]
= 576,578 cu ft
Top of Dam Volume -
Volume = 13.6/6[175xl75 + 256.6x256.6 + 4(215.8x215.8)]
= 640,893 cu ft = 14.7 ac-ft
White Rock Farms, LLC 15 Waste Plan 2023
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Jurisdictional Determination/Hazard Classification Request
To evaluate if a dam is governed by the Dam Safety Law of 1967 (as amended)
If it is your desire to have the Land Quality Section's Darn Safety Program staff determine if your dam
is governed by the Dam Safety Law of 1967 (as amended) (General Statute §143-215.23-37),
Please complete this form in its entirety, if applicable, and return to:
State Dam Safety Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Land Quality Section
1612 Mail Service Center
Raleigh, NC 27699-1612
1. Describe any potential hazards for loss of life and environmental or structural property damage to
existing and/or potential future downstream developments (i.e. buildings, houses, roads, bridges,
major utility lines, etc.): State road located 8,800 feet downstream
2. Please attach a vicinity map of the dam (Preferably aerial and/or topographic contour map, which
shows the premise as well as the concerned downstream areas) and provide a brief description of
the location/nearest physical street address: See potential breach hazard flow paths drawing
and the Hazard Classification Commentary for waste storage ponds #2 and #3 attached.
Dsgovern.frm (revised 2/14/17)
Page 2 of 3
3. General Summary of the Dam:
a. Name of Owner: White Rock Farms, LLC_(Waste Pond #2)
b. Address: 1474 Jopennie Road
c. City: Peachland State: NC Zip: 28133
d. Phone No.: 704-221-1705 _ Email: whiterockfarmjsllc@gmail.com_
Dam Name (STATE- ID, if assigned):
Latitude:
Longitude:
034°48'55.42" N
080014'47.59" W
Nearest State Road Number/Name:
(SR #) SR1223 Jopennie Road
County:
Anson
River/Stream:
Trib of Deadfall Creek
Drainage Area (acres):
0 acres
Dam Height (from the highest point on the top of dam to
the lowest point on the downstream toe of dam in feet):
473-442 = 31'
Depth of Water at Normal Pool (ft):
10,
Depth of Water at Top of Dam (ft):
12.2'
Impoundment Surface Area at Normal Pool (acres):
1.0 acre
Impoundment Surface Area at Top of Dam (acres):
1.1 acre
Storage Capacity at Normal Pool (acre-feet):
7.2
Maximum Storage Capacity at Top of Dam (acre-feet):
9.6
e. Please provide any additional engineering documents (historical records, design drawing
plans, rating curves, etc.)
4. General Summary of the Downstream Area(s) [check all boxes that apply]:
a. Primary Downstream Land Use:
FX1 WOODLAND E AGRICULTURAL ❑ RESIDENTIAL ❑ INDUSTRIAL/COMMERCIAL
b. Existing and/or Future Downstream Developments/Improvements:
❑ DWELLINGS 1-1
BUILDINGS FYI ROADS ❑ UTILITIES
Page 3 of 3
Existing and/or Future Downstream Development/Improvement(s) Data:
Downstream
Hazard/Improvement
Type
Distance
Downstream
from Dam
Floodplain
Width
Elevation
Relative to
Floodplain
Channel
Slope
Breach Flood
Wave
Elevation
Culvert/Bridge
Dimensions
Traffic
Count
Sight
Distance
Trib
1,830 ft
150 ft
5%
—2 ft
Deadfall Creek
7,000 ft
300' ft
0.8%
<2'
SR 1220
2.5'
2 - 5' pipes
Long Pine
8,800
800 ft
above
0.5%
<1'
1 — 3' pipe
150
750'
Church Road
floodplain
1 — 4' pipe
In accordance with 15A NCAC 02K .0105, I am providing the following proposed hazard classification:
RECOMMENDED HAZARD CLASSIFICATION: 1-9 LOW ❑ INTERMEDIATE 1-1 HIGH
I agree that this form will be used to initiate the Jurisdictional Determination process and/or determine its Hazard
Classification based on current submittal and additionally requested documents, as needed.
NAME OF OWNER/REPRESENTATIVE or PROFESSIONAL ENGINEER: _Samuel C. Bingham, PE
r
SIGNATURE:
DATE: d
COPY OF TR-66 BREACH HYDROGRAPH - Hazard Study of Dams
Date
Prepared By
Watershed Name:
Site No.
Elevations
Top of Dam
Breach Hydrograph
Wave Berm
Average Valley Floor
Stability Berm
Length of Dam at Breach Elev
Volume of Breach
Top Width
Upstream Slope Above Berm
Upstream Slope Below Berm
Downstream Slope Above Berm
Downstream Slope Below Berm
Wave Berm Width
Stability Berm Width
1-May-23
SCB
Waste Pond #2
473 Ft msl
473 Ft msl
0 Ft msl
460.8 Ft msl
0 Ft msl
581 Ft
9.6 Ac Ft
15 Ft
3 :1
3 :1
3
3 .1
0 Ft
0 Ft
DA(ac)=
Remaining storm runoff(inches)=
Remaining storm runoff (acft)=
TopOfbam Storage in AcFt=
Breach Volume =
Max Discharge at TOD (cfs) _
0
0
0
9.6
9.6
0
Prepared by USDA-NRCS 5/28/2023 Page 1
COPY OF TR-66 BREACH HYDROGRAPH - Hazard Study of Dams
Watershed Name:
Waste Pond #2 Date
1-May-23
Site No.
Prepared B :
SCB
Elevations
Top of Dam
473.0 Ft msl Top Width
15 Ft
Breach Hydrograph
473.0 Ft msl Upstream Slope Above Berm
3 :1
Wave Berm
0.0 Ft msl Upstream Slope Below Berm
3 :1
Average Valley Floor
460.8 Ft msl Downstream Slope Above Berm
3 :1
Stability Berm
0.0 Ft msl Downstream Slope Below Berm
3 :1
Length of Dam at Breach Elev
581 Ft Wave Berm Width
0 Ft
Volume of Breach
9.6 Ac Ft Stability Berm Width
0 Ft
Breach Discharge Computations
Volume of Breach (Vs) 10 Ac Ft
Height Of Breach (Hw) 12 Ft
Cross -Section Area at Breach (A) 630 FT
T = 65(H0-3�/0.416 375
IfL>T
Br = (Vs * Hw)/A 0
Qmax = 1,100 (Br)1.35 114 CFS
IfL<T,
Qmax = 0.416 (L)(Hw1 10,299 CFS
Qmax NOT GREATER THAN
Qmax = 65(HW1's) 6,648 CFS
Qmax NOT LESS THAN
Qmax = 3.2(1-Iw5/2) 1,664 CFS
Breach Qmax for Hazard Classification = 1,700 CFS -
Prepared by USDA-NRCS 5/28/2023 Page 1
COPY OF TR-66 BREACH HYDROGRAPH -Hazard Study of Dams
Watershed Name: Waste Pond #2
Site No.
Breach Hydrograph
Reservoir
Q Max
Volume at
Time of
Failure (ac ft)
Qi=
1700
Vi=
10
T
t
Qi
ft3
ac.ft
0
0
0
0.017
0.000
1700
306000
7.02
0.1
1.463
393
376816.1073
8.65
02
2.927
91
87204.73822
2.00
0.3
4.390
21
20181.37288
0.46
0.4
5.854
5
4670A77999
0.11
0.5
7.317
1
1080.866246
0.02
0.6
8.781
0
250.1396734
0.01
0.7
10.244
0
57.88862078
0.00
0.8
11.708
0
13.39688491
0.00
0.9
13.171
0
3,100376599
0.00
1
14.635
0
0.717505235
0.00
1.1
16.098
0
0.166048783
0.00
1.2
17.562
0
0.038427871
0.00
1.3
19.025
0
0.008893177
0.00
1.4
20.489
0
0.002058105
0.00
1.5
21.952
0
0.000476297
0,00
1.6
23.416
0
0.000110227
0.00
1.7
24.879
0
2.55094E-05
0.00
1.8
26.343
0
5.90351E-06
0.00
1.9
27.806
0
1.36622E-06
0.00
2
29.270
0
3.16178E-07
0.00
2.1
30.733
0
7.31715E-08
0.00
2.2
32.197
0
1.69337E-08
0.00
2.3
33.660
0
3.91889E-09
0.00
2.4
35.124
0
9.0693E-10
0.00
2.5
36.587
0
2.09886E-10
0.00
2.6
38.051
0
4.8573E-11
0.00
2.7
39.514
0
1.1241E-11
0.00
2.8
40.978
0
2.60145E-12
0.00
2.9
42.441
0
6.02042E-13
0.00
3
43.905
0
1.39328E-13
0.00
3.1
45.368
0
3.22439E-14
0.00
3.2
46.832
0
7.46206E-15
0.00
3.3
48.295
0
1.72691E-15
0.00
3.4
49.759
0
3.9965E-16
0.00
3.5
51.222
0
9.24891E-17
0.00 18.28
3.6
52.686
0
2.14043E-17
0.00
3.7
54.149
0
4.9535E-18
0.00
3.8
55.613
0
1.14636E-18
0.00
3.9
57.076
0
2.65298E-19
0.00
4
58.540
0
6.13965E-20
0.00
4.1
60.003
0
1.42087E-20
0.00
4.2
61.467
0
3.28825E-21
0.00
4.3
62.930
0
7.60984E-22
0.00
4.4
64.394
0
1.76111 E-22
0.00
4.5
65.857
0
4.07565E-23
0.00
4.6
67.321
0
9.43208E-24
0.00
4.7
68.784
0
2.18282E-24
0.00 18.28
Qi
1,800
1,600
1,400
1,200
W 1,000 a-Qi
U.
U 800
600
400
200
0
0 0.5 1 1.5 2 2.5
Time (hours)
Prepared by USDA-NRCS 5/28/2023 Page 1
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Jurisdictional Determination/Hazard Classification Request
To evaluate if a dam is governed by the Dam Safety Law of 1967 (as amended)
If it is your desire to have the Land Quality Section's Dam Safety Program staff determine if your dam
is governed by the Dam Safety Law of 1967 (as amended) (General Statute § 143-215.23-37),
Please complete this form in its entirety, if applicable, and return to:
State Dam Safety Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Land Quality Section
1612 Mail Service Center
Raleigh, NC 27699-1612
Describe any potential hazards for loss of life and environmental or structural property damage to
existing and/or potential future downstream developments (i.e. buildings, houses, roads, bridges,
major utility lines, etc.): Rudolph Sikes Road located 11,900 feet downstream of proposed
dam. SR is currently closed and even when open was very low used.
2. Please attach a vicinity map of the dam (Preferably aerial and/or topographic contour map, which
shows the premise as well as the concerned downstream areas) and provide a brief description of
the location/nearest physical street address: See potential breach hazard flow paths drawing
and the Hazard Classification Commentary for waste storage ponds #2 and #3 attached. _
Dsgovern.frm (revised 2/14/17)
Page 2 of 3
3. General Summary of the Dam:
a. Name of Owner: White Rock Farms, LLC_(Waste Pond #3)
b. Address: 1474 Jopennie Road
c. City: Peachland State: NC Zip: 28133
d. Phone No.: 704-221-1705 _ Email: whiterockfarmjsllc@gmail.com
Dam Name (STATE- ID, if assigned):
Latitude:
Longitude:
034°49'4.95" N
080016' 1.97" W
Nearest State Road Number/Name:
(SR #) SR1224 Austin Road
County:
Anson
River/Stream:
Trib of Clay Creek
Drainage Area (acres):
0 acres
Dam Height (from the highest point on the top of dam to
the lowest point on the downstream toe of dam in feet):
386-374 =12'
Depth of Water at Normal Pool (ft):
12'
Depth of Water at Top of Dam (ft):
13.6'
Impoundment Surface Area at Normal Pool (acres):
1.4 acre
Impoundment Surface Area at Top of Dam (acres):
1.5 acre
Storage Capacity at Normal Pool (acre-feet):
12.4
Maximum Storage Capacity at Top of Dam (acre-feet):
14.7
e. Please provide any additional engineering documents (historical records, design drawing
plans, rating curves, etc.)
4. General Summary of the Downstream Area(s) [check all boxes that apply]:
a. Primary Downstream Land Use:
F1WOODLAND I X1 AGRICULTURAL ❑ RESIDENTIAL ❑ INDUSTRIAL/COMMERCIAL
b. Existing and/or Future Downstream Developments/Improvements:
1-1
DWELLINGS F-1
BUILDINGS I Y-1 ROADS ❑ UTILITIES
Page 3 of 3
Existing and/or Future Downstream Development/Improvement(s) Data:
Downstream
Distance
Elevation
Breach
Hazard/Improvement
Type
Downstream
from Dam
Floodplain
Width
Relative
to
Floodplain
Channel
Slope
Flood
Wave
Elevation
Culvert/Bridge
Dimensions
Traffic
Count
Sight
Distance
Clay Creek
4,300 ft
300 ft
2%
h2 ft
Bridge
ridge
Length —
Low
Rudolph Sikes
300'+
12'
15000
11,900 ft
<1%
<1'
60' —12'
Presently
Road
ft
above
ft
above
closed
Creek
creek
In accordance with 15A NCAC 02K .0105, I am providing the following proposed hazard classification:
RECOMMENDED HAZARD CLASSIFICATION: M LOW 1-1
INTERMEDIATE 1-1
HIGH
I agree that this form will be used to initiate the Jurisdictional Determination process and/or determine its Hazard
Classification based on current submittal and additionally requested documents, as needed.
NAME OF OWNER/R%PRESENTATIVE or PROFESSIONAL ENGINEER: _Samuel C. Bingham, PE
SIGNATURE:
DATE: ///Ae- 3,
P.E. SEAL:
COPY OF TR-66 BREACH HYDROGRAPH - Hazard Study of Dams
Date
Prepared By
Watershed Name:
Site No.
Elevations
Top of Dam
Breach Hydrograph
Wave Berm
Average Valley Floor
Stability Berm
Length of Dam at Breach Elev
Volume of Breach
Top Width
Upstream Slope Above Berm
Upstream Slope Below Berm
Downstream Slope Above Berm
Downstream Slope Below Berm
Wave Berm Width
Stability Berm Width
1-May-23
SCB
Waste Pond #3
386 Ft msl
386 Ft msl
0 Ft msl
375 Ft msl
0 Ft msl
800 Ft
14.7 Ac Ft
15 Ft
3 :1
3 :1
3
3 :1
0 Ft
0 Ft
DA(ac)=
0
Remaining storm runoff(inches)=
0
Remaining storm runoff(acft)=
0
TopOf Dam Storage in AcFt=
14.7
Breach Volume =
14.7
Max Discharge at TOD (cfs) =
0
Prepared by USDA-NRCS 5/28/2023 Page 1
COPY OF TR-66 BREACH HYDROGRAPH - Hazard Study of Dams
Watershed Name:
Waste Pond #3 Date
1-May-23
Site No.
Prepared By:
SCB
Elevations
Top of Dam
386.0 Ft msl Top Width
15 Ft
Breach Hydrograph
386.0 Ft msl Upstream Slope Above Berm
3 :1
Wave Berm
0.0 Ft msl Upstream Slope Below Berm
3 :1
Average Valley Floor
375.0 Ft msl Downstream Slope Above Berm
3 :1
Stability Berm
0.0 Ft msl Downstream Slope Below Berm
3 :1
Length of Dam at Breach Elev
800 Ft Wave Berm Width
0 Ft
Volume of Breach
14.7 Ac Ft Stability Berm Width
0 Ft
Breach Discharge Computations
Volume of Breach (Vs) 15 Ac Ft
Height Of Breach (Hw) 11 Ft
Cross -Section Area at Breach (A) 528 FT2
T = 65(H°-3s)/0.416 362
IfL>T,
Br = (Vs * Hw)/A 0
Qmax = 1,100 (Br)1" 223 CFS
IfL<T,
Qmax = 0.416 (L)(Hwt 12,142 CFS
Qmax NOT GREATER THAN
Qmax = 65(HW"') 5,489 CFS
Qmax NOT LESS THAN
Qmax = 3.2(Hw5/) 1,284 CFS
Breach Qmax for Hazard Classification = 1,300 CFS
Prepared by USDA-NRCS 5/28/2023 Page 1
COPY OF TR-66 BREACH HYDROGRAPH -Hazard Study of Dams
Watershed Name: Waste Pond #3
Site No.
Breach Hydrograph
Reservoir
Q Max
Volume at
Time of
Failure (ac ft)
Qi=
1300
Vi=
15
T
t
Qi
ft3
ac. ft
0
0
0
0.017
0.000
1300
234000
5.37
0.1
0.731
626
346668.5423
7.96
0.2
1.462
301
166917.2621
3.83
0.3
2.193
145
80368.90861
1.85
0.4
2.923
70
38696.78539
0.89
0.5
3.654
34
18632,09574
0.43
0.6
4.385
16
8971.158409
0.21
0.7
5,116
8
4319.518551
0.10
0.8
5.847
4
2079.802815
0.05
0.9
6.578
2
1001.403212
0.02
1
7.309
1
482,1651288
0.01
1.1
8.040
0
232.1574454
0.01
1.2
8.770
0
111.7813717
0.00
1.3
9,501
0
53.82155643
0.00
1.4
10.232
0
25.91451414
0.00
1.5
10.963
0
12.47756638
0.00
1.6
11.694
0
6.007817164
0.00
1.7
12.425
0
2.892700865
0.00
1.8
13.156
0
1.392805085
0.00
1.9
13.887
0
0.67062102
0.00
2
14.617
0
0.322896978
0.00
2.1
15.348
0
0.155471503
0.00 -
2.2
16.079
0
0.074857896
0.00
2.3
16.810
0
0.036043291
0.00
2.4
17.541
0
0.017354466
0.00
2.5
18.272
0
0.008355993
0.00
2.6
19.003
0
0.004023323
0.00
2.7
19.734
0
0.001937188
0.00
2.8
20.464
0
0.000932736
0.00
2.9
21.195
0
0.000449102
0.00
3
21.926
0
0.000216238
0.00
3.1
22.657
0
0.000104116
0.00
3.2
23.388
0
5.01309E-05
0.00
3.3
24.119
0
2.41375E-05
0.00
3.4
24.850
0
1.1622E-05
0.00
3.5
25.580
0
5.59585E-06
0.00 20.72
3.6
26.311
0
2.69434E-06
0.00
3.7
27.042
0
1.2973E-06
0.00
3.8
27.773
0
6.24636E-07
0.00
3.9
28.504
0
3.00755E-07
0.00
4
29.235
0
1.44811 E-07
0.00
4.1
29.966
0
6.97248E-08
0.00
4.2
30.697
0
3.35718E-08
0.00
4.3
31.427
0
1.61644E-08
0.00
4.4
32.158
0
7.78301E-09
0.00
4.5
32.889
0
3.74744E-09
0.00
4.6
33.620
0
1.80435E-09
0.00
4.7
34.351
0
8.68777E-10
0,00 20.72
Qi
1,400
1,200
1,000
800 f-Qi
LL
U 600
400
200 --
0
0 0.5 1 1.5 2 2.5
Time (hours)
Prepared by USDA-NRCS 5/28/2023 Page 1