NCG021027_Application_20231120

MELD-
Gunn=-Ll
Fill
, engineenng 6.surveying, p.c.
November 4, 2023
NCDEMLR
Stormwater Program
1612 MSC
Raliegh, NC 27699-1612 Re: NOI Submittal-Mining General Permit RECEIVED
Keller Mining, Inc.
Keller Mining-Sand and Recycle NOV F 0 2023
5830 Wallace Road Lcrv1LR-Stormwater Program
Rowan. Co., Kannapolis NC
Gentlemen:
On behalf Keller Mining, we are submitting the NOI for the proposed sand mine located at
0 Smith Road, Kannapolis, NC. The mining permit application has been submitted and waiting
additional review comments.
I have attached two sets of plans along and calculations for the tailings pond. We submit
the NOI application and a check for$120 requesting coverage under the General Miner Permit
NCG 02, pending approval of the mining permit. Please feel free to contact me at 704-655-7290 or
[e-mail] if you have any questions.
M=,L'D= GUNNELL
RECEIVED /In, eerg,PNOV 0 9 2023 L. eadcipal
LAND DUALITY
MINING PROGRAM
P.O. Box 790, Cornelius, NC 28031704.655.7290

RECEIVED
ED
FOR AGENCY USE ONLY
NCG02�C) 21 NOV � 0 2023
Assigned to: V. C604-
ARO FRO R RRO WARO WIRO WSRO DEMIR-Stormwater Program
Division of Energy, Mineral, and Land Resources Land Quality Section
National Pollutant Discharge Elimination System
NCG020000 Notice of Intent
This General Permit covers STORMWATERAND/OR WASTEWATER DISCHARGES associated with activities under
SIC(Standard Industrial Classification)Code 14[Mineral Mining Industry]except for:peat mining, coal mining,
metal mining, oil and gas extraction, tourist gem mines, NCDOT borrow pits, in-stream sand mining, and
discharges from mining operations which are intermixed on site with stormwater from concrete operations. You
can find information on the DEMLR Stormwater Program at deq.nc.gov/SW.
Directions: Print or type all entries on this application. Send the original,signed application with all required
items listed in Item (9) below to: NCDEMLR Stormwater Program,1612 MSC, Raleigh,NC 27699-1612. The
submission of this application does not guarantee coverage under the General Permit. Prior to coverage under
this General Permit a site inspection will be conducted.
1. Owner/Operator(to whom all permit correspondence will be mailed):
Name of legal organizational entity: Legally responsible person assigned in Item(10)below:
ELL_r= nt I nl G w G E KE LLE"E
Street address: City: State: Zip Code:
G030 I EIG -r- 12a KA��APot_I S NG 08
Telephone number: Email ad ess:
-Io4 -(&9.9 - �i312 o a oa . Gor+�
Type of Ownership: ..
Government
❑County ❑Federal ❑Municipal ❑ State
Non-government
;*usiness(If ownership is business,a copy of NCSOS report must be included with this application)
❑ Individual
2. Industrial Facility(facility being permitted):
Facility name: Facility environmental contact:
4:�kR I Inc — f RE(_ CLE 7 RR EM)c
Street address: City: State: Zip Code:
b Smk-TA ls NC Z8081
Parcel IdentifiicatioonnN�r(PIN) County: -ram r '
44 ROW 'v
Telephone number: meaadCM mP a n(t t D
nn
Latitude of entrance: Longitude of entran e:
3 .s. G 1 — o. � :,
4-digit SIC code: Facility is: Date operation is to begin or began:
New ❑ Proposed 4T 2-0/81 4 4 Z xisting
Types of minerals mined at this facility:
❑ Clay ❑ Feldspar Ore ❑ Lithium Ore ❑ Phosphate Soil XConstruction Sand ❑ Industrial Sand
❑ Other:
Page 1 of 11

Is this a processing-only facility for materials mined elsewhere? Is this an inactive mine site?
❑Yes ❑Yes
%No No
Does total area of this mine site include ready-mixed concrete plant and/or asphalt plant areas?
❑Yes,and has separate NPDES stormwater permits(provide permit numbers):
❑Yes,and does not have separate NPDES stormwater permits
No
Does this facility already have a valid Mining Permit from DEMLR's Land Quality Section?
❑Yes(please provide the Mining Permit Number)
o(please indicate the status of the Mining Permit application) SU 13M ITTED
Are you applying for a discharge permit in the same location as a previously permitted mine?
❑Yes(please provide permit number and mine name)
No
�If the' stormwater discharges to a municipal separate storm sewer system (MS4),name the operator of the MS4:
N/A
3. Consultant(if applicable):
Name of consultant: Consulting firm:
--s- N1EAx� UNNfLC 6r,16 t6cRwG
Street address: City: State Zip Code
o x o CDP-NEUUS N� ZSo31
Telephone number: Email address:
o - 5 _-72 q D m Pa dC dpnell . Cow
4. Development Activities and Buffers
Mining operation will precede development activities at this site:
❑Yes
0
Mine is located within one of the 20 Coastal Counties,and will it add more than 10,000 ftz of impervious surface:
❑Yes(to both)
❑ No,this mine is within one of the 20 Coastal Counties,but will not at more than 10,000 ft2 of impervious surface
Xlo,this mine is not within one of the 20 Coastal Counties
Mine is in the Neuse,Tar-Pamlico,or Catawba River Basins,OR in the Randleman or Jordan Water supply Watersheds?
❑Yes(specify size of stream buffers)
No
Mine site will include wastewater discharges from a ready-mix concrete batch plant?
❑Yes(please seek additional coverage under General Permit NCG140000: Ready-Mix Concrete)
No
5. Mine Dewatering
Mine dewatering will occur at this site:
❑Yes No(mark N/A for the rest of this section)
Mine dewatering from this facility will be discharged to: �/�
❑Surface Waters and/or Wetlands
❑Other(specify)
❑Mine will not discharge dewatering to Surface Waters and/or Wetlands;specify how dewatering will occur and where
water will be directed:
❑N/A
Page 2 of 11

Wetlands and/or Surface Waters are within 400'of the mine pit perimeter: 404/401 Certification permits required:
Yes(specify distance) K//\ ❑Yes(briefly describe)
❑ No FF El,No
❑ N/A ❑ N/A
Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
❑Yes(please attach to this application) ❑ No
6. Wastewater Treatment
Will this facility wash mined materials?
es ❑ No
Will discharges of process wastewater treatment systems occur(including possible recycle system overflows)
*es(please describe) P4
❑ No
Will this facility employ chemical additives to flocculate suspended solids?
❑Yes(specify name/manufacturer/quantity of daily use)
>(,No
Note:please visit:https•//files nc govincdeg/Water+Quality/Environmental+Sciences/ATU/PAM8 30 18.pdf for list of
approved PAMS
Will any of the wastewater treatment facilities atthis mine overflow only during rainfall events that exceed the 10-yr,24-hr
rainfall event?
AYes(specify which systems)
❑ No
Are wastewater treatment facilities(including recycle systems)planned in the 100-year flood plain?
❑Yes o
Wastewater Treatment Alternative Review as required by 15A NCAC 2H.0105(c)(2)
Types of wastewater this mine site will discharge: ❑ Mine Dewatering 5kProcess Wastewater
Types of wastewater considered for this alternative review: ❑ Mine Dewatering ❑Process Wastewater
AZthere existing sewer lines within a one-mile radius?
Yes
❑Wastewater treatment plant will accept wastewater
❑ Is feasible to connect(explain)
19 s not feasible to connect(explain)
❑Wastewater treatment plant will not accept wastewater(please attach letter documenting this)
❑ No
Page 3 of 11

Are you already proposing a closed-loop recycle system(CLRS)that meets design requirements of 15A NCAC 2T.10000?
❑Yes,for dewatering
❑ Yes,for process wastewater
❑Yes,for both
❑ No,this option is technologically feasible(explain)
❑ No,this option is not technologically feasible(explain)
❑ No,this option is otherwise feasible(explain)
An,this option is otherwise not feasible(explain)
What is the feasibility of building a CLRS compared to direct surface water discharge?
�(01' 1�1 EEDE
Surface or Subsurface Disposal System
❑ A surface or subsurface disposal system is technologically feasible(explain)
❑ A surface or subsurface disposal system is not technologically feasible(explain)
❑A surface or subsurface disposal system is otherwise feasible to implement(explain)
>�A surface of subsurface disposal system is not otherwise feasible to implement(explain)
What is the feasibility of employing a subsurface of surface discharge as compared to a direct discharge to surface waters?
/plat ; ',%sA , 3�E
Direct Discharge to surface waters is the most environmentally sound alternative to all reasonably cost-effective options
for the wastewaters being considered?
)(es
❑ No
If this review included all wastewater discharge types,would excluding some types make any of the above non-discharge
options feasible for some the wastewaters?
❑Yes
0
7. Outfalls(s)At least one outfall is required to be eligible for coverage.
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
003 ILL� ❑This watershed has aTMDL.
Discharge from this outfall is from:
�6tormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HQW,
ORW,Tr,WS-I,WS-ll,WS-III,SA,or PNA):
Discharge occurs from this outfall:
Only during a rainfall event ❑ Intermittently(indicate how often) ❑ Continuously(indicate flow in CFS)
Latitude of outfall: 35 , 521 Longitude of 9fallO: (P
Q
Brief description of the industrial activities that drain to this outfall: v
So« k)AS9 WATEtz ANC COOCKETE Q.usNIr-JG
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes XNo
If yes,how many gallons.of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Page 4 of 11

Discharge from this outfall is from:
❑Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7C.10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HOW,
ORW,Tr,WS-I,WS-II,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑ Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HOW,
ORW,Tr,WS-I,WS-II,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q30 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HOW,
ORW,Tr,WS-I,WS-Il,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑ Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q30 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HQW,
ORW,Tr,WS-I,WS-II,WS-III,SA,or PNA):
Discharge occurs from this outfall:
Page 5 of 11

❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑ Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑ Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
All outfalls must be listed and at least one outfall is required.Additional outfalls may be added in the section
"Additional Outfalls"found on the last page of this NOI.
8. Other Facility Conditions (check all that apply and explain accordingly):
❑This facility has other NPDES permits. If checked,list the permit numbers for all current NPDES permits:
❑This facility has Non-Discharge permits(e.g.recycle permit). If checked,list the permit numbers for all current Non-
Discharge permits:
❑This facility uses best management practices or structural stormwater control measures.
If checked, briefly describe the practices/measures and show on site diagram:
❑This facility has a Stormwater Pollution Prevention Plan(SWPPP).
If checked, please list the date the SWPPP was implemented:
❑This facility stores hazardous waste in the 100-year floodplain.
If checked,describe how the area is protected from flooding:
❑This facility is a(mark all that apply)
❑ Hazardous Waste Generation Facility
❑ Hazardous Waste Treatment Facility
❑ Hazardous Waste Storage Facility
❑ Hazardous Waste Disposal Facility
If checked,indicate:
Kilograms of waste generated each month: Type(s)of waste:
How material is stored: Where material is stored:
Number of waste shipments per year: Name of transport/disposal vendor:
Transport/disposal vendor EPA ID: Vendor address:
❑This facility is located on a Brownfield or Superfund site
If checked, briefly describe the site conditions:
❑ Facility provides appropriate secondary containment for bulk storage of liquid materials
If checked, briefly describe these measures:
❑Site has an active landfill within the mining permit boundary
If checked,please indicate type:
a) ❑ LCID(Land clearing and Inert Debris)
b) ❑ other(specify)
Page 6 of 11

9. Required Items (Application will be returned unless all of the following items have been included):
Check for$120 made payable to NCDEQ
Copy of most recent Annual Report to the NC Secretary of State(if applicable)
JdZhis completed application and any supporting documentation
91,Copy of the approved mining permit or indication of mining permit application status
Copy of US Army Corps—approved wetland delineation(if applicable)
ine drawing of the water flow through the facility or block flow diagram
Pictorial description of the nature of any sources of water and any collection and treatment measures
site diagram showing,at a minimum,existing and proposed:
a) outline of drainage areas
b) surface waters
c) stormwater management structures
d) location of stormwater outfalls corresponding to the drainage areas
e) runoff conveyance features
f) areas where process materials are stored
g) impervious areas
h) site property lines
2 copies of large scale(24"x36"minimum)site plan showing:
a) topographical lines
b) all outfall locations
c) applicable buffers and delineated wetlands
d) receiving waters
e) 100-year flood plain (if applicable)
Copy of county map or USGS quad sheet with the location of the facility clearly marked
If mines site is in one of the 20 Coastal Counties(if applicable)
❑Applicant has check with the appropriate regional office to verify the need for a Coastal State Stormwater permit.
a) Indicate the Regional Office Contact:
❑ Detailed list of:
a) impervious surface areas and percentages
b) sub-drainage areas
c) total drainage area
If mine is dewatering and near wetlands,or may otherwise impact surface waters or groundwater
❑ 2 copies of large scale(24"06"minimum)plans delineating areas on the listing acreage including:
a) wetlands
b) ditches
c) well-placements
d) pits
e) borrow areas
f) overburden storage
g) stormwater controls/BMPs
h) vehicle maintenance areas
i) settling basins
j) product process(such as screening,stockpiles,and waste piles)
k) total drainage area
1) impervious surface percentages(if state stormwater programs apply)
m) applicable buffers
n) access and/or haul roads
❑ Pump dewatering size and information on its specifications
Page 7 of 11

❑ Well information(design,depths,maintenance)
❑ Physical monitoring for the wetland areas
❑ Settling pond size information,if applicable
❑ Level spreader design,if applicable
❑ Details about dewatering method
❑ Cone of influence calculations
❑ Description of measures to prevent erosion and flooding
❑ Description and information about 401/404 permits that have been obtained
❑ Copy of US Army Corps of Engineers wetlands delineations or approved wetland delineation(if applicable)
❑ I have contacted my local regional office about a Pumping Operation and Monitoring(POM)plan
a) Regional Office Contact:
b) Date Contacted:
10. Applicant Certification:
North Carolina General Statute 143-215.613(i)provides that: Any person who knowingly makes any false statement,
representation,or certification in any application,record, report,plan,or other document filed or required to be maintained
under this Article or a rule implementing this Article. . .shall be guilty of a Class 2 misdemeanor which may include a fine not
to exceed ten thousand dollars($10,000).
U der penalty of law,I certify that:
I am the person responsible for the permitted industrial activity,for satisfying the requirements of this permit,and for any
civil or criminal penalties incurred due to violations of this permit.
XThe information submitted in this NOI is,to the best of my knowledge and belief,true,accurate,and complete based on
my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the
information.'174 .
1 will abide by all conditions of the NCG020000 permit.I understand that coverage under this permit will constitute the
permit requirements for the discharge(s)and is enforceable in the same manner as an individual permit.
I hereby request coverage under the NCG0200000General Permit.
Printed Name of Applicant: �<Et_c-E2 l g I IIj I Mtr7 T JC-
Title: I QED ) r�c-N 1
(Sig atur p icant) (Da a Signed)
Mail the entire package to: DEMLR—Stormwater Program
Department of Environmental Quality
1612 Mail Service Center
Raleigh, NC 27699-1612
Page 8 of 11

Additional Outfalls
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HOW,
ORW,Tr,WS-I,WS-II,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes, how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HQW,
ORW,Tr,WS-1,WS-11,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑ Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑ Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater towaters classified as HOW,
ORW,Tr,WS-1,WS-11,WS-111,SA,or PNA):
Discharge occurs from this outfall:
❑Only during a rainfall event ❑ Intermittently(indicate how often) ❑ Continuously(indicate flow in CFS)
Page 9 of 11

Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged overthe calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HOW,
ORW,Tr,WS-I,WS-II,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑ Continuously(indicate flow in
CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receivjng water: Classification: ❑❑This water is impaired.
This watershed has a TMDL
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HQW,
ORW,Tr,WS-I,WS-11,WS-111,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
3-4 digit identifier: Name of receiving water: Classification: ❑This water is impaired.
❑This watershed has a TMDL.
Discharge from this outfall is from:
❑ Stormwater ❑ Mine Dewatering ❑ Process Wastewater
7Q10 Flow of receiving waterbody(if discharging Mine Dewatering or Process Wastewater to waters classified as HQW,
ORW,Tr,WS-1,WS-II,WS-III,SA,or PNA):
Discharge occurs from this outfall:
❑ Only during a rainfall event ❑ Intermittently(indicate how often) ❑Continuously(indicate flow in CFS)
Latitude of outfall: Longitude of outfall:
Page 10 of 11

Brief description of the industrial activities that drain to this outfall:
Do Vehicle Maintenance Activities occur in the drainage area of this outfall? ❑Yes ❑ No
If yes,how many gallons of new motor oil are used each month when averaged over the calendar year?
Page 11 of 11

SEDCAD 4 for Windows
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D'c.Iv1LR-Stcrmwater Program
Keller Mining -Sand Mine & Recycle
Kannapolis, NC
MGE Proj . 220703.440
10 YR124 HR STORM
`,+y1�1l ellllll q,�
13 30
Jerry L. Meade
MEADE GUNNELL engineering, PC
P.O. Box 790
Cornelius, NC 28031
Phone: [phone]
Email: [e-mail]
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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2
Genera/Information
Storm Information;
Storm Type: NRCS Type II
Design Storm: 10 yr-24 hr
Rainfall Depth: 5.070 inches
Particle Size Distribution;
Size(mm) S-2
9.5000 100.000%
4.7500 97.000%
2.0000 64.700%
0.4250 54.000%
0.1500 36.700%
0.0750 29.000%
0.0184 20.700%
0.0056 15.600%
0.0012 14.400%
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

Particle Size Analysis
o0
100
I I I I I I I I I I I I I
90 I I I I I I I I I I I I I I
I I I I I I I I I I I I I I
80
I I I I I I I I I I I I I I
70 I I I I I I I
� I I I I I I I I I I I I I I
Z 60
LL
I I I I I I
1-- I I I I I 1 I I
Z 50
w I I I I I I
w40 I I I I I I I
a I I I I I I I I I I I I I
30
I I I I I I I I I I I I I
I I I I I I I I I I I I I I
20
I 1 1 1 I I I I I
I I I I I I I I I
10T
I I I I I I I I I I I I I I
0
100 10 1 0.1 0.01 0.001
GRAIN SIZE-mm.
%+3" %Gravel %Sand %Fines
Coarse Fine Coarse Medium Fine Silt Clay
0.0 0.0 3.0 32.1 10.9 25.0 13.5 15.4
SIEVE PERCENT SPEC.` PASS. Material Description
SIZE FINER PERCENT (X=NO) Yellowish red,silty clayey SAND
318" 100.0
#4 97.0
#10 64.9
#40 54.0 Atterberg Limits
#100 36.7 PL= LL= P1=
#200 29.0 Coefficients
.0386 mm. 25.2 D90= 3.7810 D85= 3.3288 D60= 0.7451
.0281 mm. 23.2 D50= 0.3094 D30= 0.0854 D15= 0.0023
.0184mm. 20.7 D10= Cu= Cc=
.0109 mm. 18.8
Classification
.0079 mm. 16.9
.0056 mm. 15.6 USCS= SC-SM AASHTO=
.0028 mm. 15.1 Remarks
.0012 mm. 14.4 Sample delivered to KEG by Mr.Jerry Meade,P.E.with
Meade Gunnell Engineering.
(no specification provided)
Source of Sample: Keller Mining
Sample Number: S-2 Date: 11/18/2022
Kessel Engineering Group Client: Meade Gunnell Engineering
Project: Meade Pit Stud
Project No: IM22-4547-01 Figure

SEDCAD 4 for Windows
CnnvrinhY�f aOP_9Mn Pammie I SoK—h
3
Structure Networking;
Type Stru (flows stru Musk. K Musk.X Description
# into) # (hrs)
Pond #1 =_> #2 0.000 0.000 P-1
Pond #2 =_> #3 0.000 0.000 P-2
Pond #3 =_> End 0.000 0.000 P-3
V #1
Pond
#2
Pond
#3
Pond
Filename:KellerSandMineRt.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
•rnn,nlnh4%aQR-9nln Pamela I grhumh
- 4
Structure Summary;
Immediate Total Total Peak Peak
Peak Contributing Contributing Runoff Sediment Sediment Settleable 24VW
Area Area Discharge Volume (tons) Conc. Conc. (MI/1)
(ac) (ac) (Cf5) (ac-ft) (mg/1) (m1/1)
In 38.23 3.46 80.8 33,768 21.92 11.05
#1 11.700 11.700
Out 14.44 3.62 13.3 4,062 0.06 0.04
In 17.05 3.85 13.3 3,916 0.05 0.04
#2 0.800 12.500
Out 9.52 3.55 11.9 3,113 0.00 0.00
In 75.59 10.68 61.3 9,758 5.09 2.39
#3 24.900 37.400
Out 6.62 5.08 10.4 1,853 0.00 0.00
Filename: KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
•r ,-ht Maon_9mn P-i. I Rrh-h
5
Particle Size Distribution(s) at Each Structure
Structure #1 (P-1);
Size(mm) In Out .
9.5000 100.000% 100.000%
4.7500 97.021% 100.000%
2.0000 64.714% 100.000%
0.4250 54.012% 100.000%
0.1500 36.708% 100.000%
0.0750 29.006% 100.000%
0.0184 20.705% 100.000%
0.0056 15.603% 95.174%
0.0012 14.403% 87.853%
Structure #2 (P-2);
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 100.000% 100.000%
2.0000 100.000% 100.000%
0.4250 100.000% 100.000%
0.1500 100.000% 100.000%
0.0750 100.000% 100.000%
0.0184 100.000°/a 100.000%
0.0056 95.182% 100.000%
0.0012 87.873% 97.905%
Structure #3:
Size(mm) In Out
9.5000 100.000% 100.0000/0
4.7500 98.058% 100.000%
2.0000 72.023% 100.000%
0.4250 63.327% 100.000%
0.1500 49.266% 100.000%
` - -- 0.0750- 43-.008% 1:00:000%
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
• C,-,,,KmaQR_9nln agenda I Rrh-.h
6
Size(mm) In Out
0.0184 36.262% 100.0000/0
0.0056 32.117% 100.000%
0.0012 30.735% 100.000%
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
+ooa-on+no-1.
Structure Detail;
Structure #1 [Pond)
P-1
Pond Inputs:
Initial Pool Elev: 769.00 ft
Initial Pool: 0.09 ac-ft
*Sediment Storage: 0.33 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Barrel Barrel Slope Manning's n Spillway Elev Holes per
Diameter Riser Height
(in) (ft) (in) Length(ft) (/o) (ft) Elev
24.00 3.001 18.00 128.00 0.75 0.0150 770.00 4
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Di(meter Length(ft) Manning's n
in
772.00 769.00 767.50 2.00 100.00 0.0140
Pond Results:
Peak Elevation: 771.77 ft
H'graph Detention Time: 3.30 hrs
Pond Model: CSTRS
Dewater Time: 1.07 days
Trap Efficiency: 83.61%
Dewatenng time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
768.74 0.339 0.000 0.000 Top of Sed. Storage
769.00 0.360 0.090 0.000 Low hole SPW#1
769.50 0.404 0.281 0.363 6.36*
770.00 0.450 0.495 0.495 7.25 Spillway#1
770.50 0.501 0.732 6.970 10.90
Filename:KellerSandMineRt.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
Cnn.rtinFP'IOOA-On1n P�mnla I GhumF
8
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
771.00 0.555 0.996 13.430 0.45
771.50 0.611 - 1.287 14.093 0.40
771.77 0.644 1.463 14.441 0.40 Peak Stage
772.00 0.670 1.607 14.726 Spillway#2
772.50 0.685 1.946 15.334 -
773.00 0.700 2.292 15.918
Detailed Discharge Table
Combined
Elevation Perf. Riser(cfs) Floating Siphon Total
(ft) (cfs) Discharge
(cfs)
768.74 0,000 0.000 0.000
769.00 2.00>0.000 0.000 0.000
769.50 0.297 0.066* 0.363
770.00 0.420 0.075* 0.495
770.50 6.886 0.083* 6.970
771.00 13.339 0.091* 13.430
771.50 13.995 0.098* 14.093
772.00 14.622 0.105 14.726
772.50 15.223 0.111 15.334
773.00 15.801 0.117 15.918
Structure #2 6E!ondJ
P-2
Pond Inputs:
Initial Pool Elev: 766.50 ft
Initial Pool: 0.15 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Riser Height Diameter Length
Barrel Manning's n Spillway Elev Holes per
(in) (ft) (in) (ft) ( ) (ft) Elev
24.00 5.00 18.00 220.00 0.50 0.0150 770.00 2
Filename: KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
9
Riser Barrel Number of
Diameter Riser eight Diameter LeBael Barrel Manning's n Spillw ,Elev Holes per
(in) (ft) (in) 9 (ft) NO lope
Elev
24.00 5.00 18.00 220.00 0.50 0.0150 770.00 2
Pond Results:
Peak Elevation: 770.70 ft
H'graph Detention Time: 6.35 hrs
Pond Model: CSTRS
Dewater Time: 2.25 days
Trap Efficiency: 10.25%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.00 0.000 0.000 0.000 Top of Sed.Storage
765.50 0.043 0.007 0.000
766.00 0.170 0.057 0.000
766.50 0.209 0.151 0.000 Low hole SPW#1
767.00 0.252 0.266 0.149 9.37*
767.50 0.299 0.404 0.210 7.92*
768.00 0.350 0.566 0.406 4.83*
768.50 0.369 0.746 _ 0.507 6.05
769.00 0.389 0.935 0.738 5.50
769.50 0.409 1.135 0.871 SAS
770.00 0.430 1.345 0.983 8.40 Spillway#1
770.50 0.449 1.564 6.886 5.95
770.70 0.457 1.656 9.516 0.60 Peak Stage
771.00 0.469 1.794 13.496
771.50 0.489 2.034 13.963
772.00 0.510 2.283 14.415
772.50 0.554 2.549 14.854
773.00 0.600 2.838 15.279
*Designates time(s)to dewaterhave been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
' Cnnunnhl loon_vmn P-i. I q,h-.h
10
Combined
Elevation Total
Perf. Riser(cfs)
(ft) Discharge
(cfs)
765.00 0.000 0.000
765.50 0.000 0.000
766.00 0.000 0.000
766.50 2.00>0.000 0.000
767.00 0.149 0.149
767.50 2.00>0.210 0.210
768.00 0.406 0.406
768.50 2.00>0.507 0.507
769.00 0.738 0.738
769.50 0,871 0.871
770.00 0.983 0.983
770.50 6.886 6.886
771.00 13.496 13.496
771.50 13.963 13.963
772.00 14.415 14.415
772.50 14.854 14.854
773.00 15.279 15.279
Structure #3(Pond)
P-3
Pond Inputs:
Initial Pool Elev: 766.00 ft
Initial Pool: 0.51 ac-ft
*Sediment Storage: 0.63 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Riser Height Barrel Barrel Slope Spillway Elev
Diameter (ft) Diameter Length(ft) ("7u) Manning's n (ft) Holes per
(in) (in) Elev
36.00 7.00 18.00 100.00 1.00 0.0150 771.50 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Di(meter Length(ft) Manning's n
772.00 766.00 763.00 2.00 100.00 0.0140
Filename:KellerSandMineRt.Sc4 Printed 05-29-2023

SEDCAD 4 for Windows
l:nrnirinF�''I O4R-OMO P.-.ta I GFunh
- 11
Pond Results:
Peak Elevation: 771.81 ft
H'graph Detention Time: 7.19 hrs
Pond Model: CSTRS
Dewater Time: 20.50 days
Trap Efficiency: 83.08%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.32 0.636 0.000 0.000 Top of Sed.Storage
765.50 0.688 0.119 0.000
766.00 0.870 0.508 0.000
766.50 0.909 0.952 0.091 59.21*
767.00 0.948 1.417 0.098 57.31*
767.50 0.989 1.901 0.105 55.92*
768.00 1.030 2.405 0.111 S4.90* Low hole SPW 41
768.50 1.071 2.931 0.154 41.16*
769.00 1.113 3.477 0:176 37.63*
769.50 1.156 4.044 0.193 35.57*
770.00 1.200 4.633 0.208 34.20*
770.50 1.241 5.244 0.260 28.45*
771.00 1.284 5.875 0.288 26.52*
771.50 1.326 6.527 0.312 25.30* Spillway#1
771.81 1.354 6.945 6.615 35.OS Peak Stage
772.00 1.370 7.201 10.484 Spillway#2
772.50 1.459 7.908 19.326
773.00 1.550 8.660 19.856
*Designates times)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Combined
Elevation Perf. Riser(cfs) Floating Siphon Total
(ft) (cfs) Discharge
(cfs)
765.32 0.000 0.000 0.000
765.50 0.000 0.000 0.000
766.00 0.000 0.000 0.000
-766:50- ---0.000- 0.000 0.091-
Filename:KellerSandMineRl.Sc4 Printed 05-29-2023

SEDCAD 4 for Windows
12
Combined
Perf. Riser(cFs)
Elevation Floating Siphon Total
(ft) (o{s) Discharge
(cfs)
767.00 0.000 0.000 0.098
767.50 0.000 0.000 0.105
768.00 1.00>0.000 0.000 0.111
768.50 0.037 0.000 0.154
769.00 0.053 0.000 0.176
769.50 0.064 0.000 0.193
770.00 1.00>0.074 0.000 0.208
770.50 0.120 0.000 0.260
771.00 0.143 0.000 0.288
771.50 0.163 0.000 0.312
772.00 10.330 0.000 10.484
772.50 19.167 0.000 19.326
773.00 19.692 0.000 19.856
Filename:KellerSandMineRl.so4 Printed 05-29-2023

SEDCAD 4 for Windows
r,........
13
Subwatershed Hydrology Detail;
Time of Peak Runoff
Stru SWS SWS Area Conc Musk K Musk X Curve UHS Discharge Volume
# # (ac) (hrs) Number
(hrs) (cfs) (ac-R)
#1 1 0.600 0.001 0.096 0.242 91.000 TR55 2.19 0.202
2 7.500 0.115 0.000 0.000 91.000 TR55 27.39 2.529
3 3.600 0.093 0.092 0.267 74.000 TR55 9.30 0.725
E 11.700 38.23 3.456
#2 1 0.800 0.001 0.123 0.231 86.000 TR55 2.71 0.235
12.500 17.05 3.853
#3 1 2.100 0.092 0.060 0.307 91.000 TR55 7.67 0.708
2 13.200 0.118 0.000 0.000 91.000 TR55 48.21 4.452
3 9.600 0.163 0.091 0.267 74.000 TR55 22.95 1.966
37.400 75.59 10.679
Subwatershed Sedimentology Detail;
Peak Peak
Stru SWS Soil K L(ft) S(%) C P PS# Sediment Sediment Settleable 24VW
# # (tons) Conc. Conc (MI/1)
(mg/1) (ml/l)
#1 1 0.170 50.00 33.00 0.4S00 1.0000 1 17.8 115,013 74.65 40.70
2 0.170 100.00 5.00 0.4500 1.0000 1 48.2 25,050 16.26 9.02
3 0.240 100.00 5.00 0.3600 1.0000 1 14.8 28,583 18.55 9.64
F. 80.8 33,768 21.92 11.05
#2 1 0.170 50.00 33.00 0.4500 1.0000 1 21.9 120,331 78.10 42.83
E 13.3 3,916 0.05 0.04
#3 1 0.240 100.00 5.00 0.0820 1.0000 1 3.0 5,658 3.67 2.01
2 0.170 100.00 2.00 0.4500 1.0000 1 36.7 10,904 7.08 3.92
3 0.240 100.00 5.00 0.0820 1.0000 1 9.7 6,816 4.38 2.32
E 61.3 9,758 5.09 2.39
Subwatershed Time of Concentration Details:
Stru SWS Land Flow Condition Slope(%) Vert. Dist. Horiz. Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 1 5. Nearly bare and untllled, and 50.00 24.00 48.00 7.070 0.001
alluvial valley fans
#1 1 Time of Concentration: 0.001
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
RnnwrinFl�OOn_9Mn Pamcla 1 R,6".h
14
Stru SWS Vert. Dist. Horiz. Dist. Velocity
# # Land Flow Condition Slope(%) (ft) (ft) (fps) Time(hrs)
#1 2 S. Nearly bare and untilled,and 2.46 16.00 650.00 1.560 0.115
alluvial valley fans
#1 2 Time of Concentration: 0.115
#1 3 3.Short grass pasture 5.32 33.00 620.00 1.840 0.093
#1 3 Time of Concentration: 0.093
#2 1 5.Nearly bare and untilled,and 5.33 32.00 600.00 2.300 0.072
alluvial valley fans
#2 1 Time of Concentration: 0.001
#3 1 3.Short grass pasture 5.67 36.00 635.00 1.900 0.092
#3 1 Time of Concentration: 0.092
#3 2 5. Nearly bare and untilled,and 2.00 12.00 600.00 1.410 0.118
alluvial valley fans
#3 2 Time of Concentration: 0.118
#3 3 2.Minimum tillage cultivation 4.72 30.00 635.00 1.080 0.163
#3 3 Time of Concentration: 0.163
subwatershed Muskingum Routing Details;
Stru S#S Land Flow Condition Slope(%) Vert, Dist. Hori(z.)Dist. Velocity Time(hrs)
#1 1 5. Nearly bare and untitled,and 2.55 14.00 550.00 1.590 0.096
alluvial valley fans
#1 1 Muskingum K: 0.096
#1 3 S. Nearly bare and unfilled,and 32.73 18.00 55.00 5.720 0.002
alluvial valley fans
5. Nearly bare and untilled, and 2.40 12.00 500.00 1.540 0.090
alluvial valley fans
#1 3 Muskingum K: 0.092
#2 1 5. Nearly bare and untilled,and 2.33 14.00 600.00 1.520 0.109
alluvial valley fans
#2 1 Muskingum K: 0.123
#3 1 S. Nearly bare and untilled, and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5. Nearly bare and untilled,and 5.88 30.00 510.00 2.420 0.058
alluvial valley fans
#3 1 Muskingum K: 0.060
#3 3 S. Nearly bare and unfilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5. Nearly bare and untilled, and 2.55 13.00 510.00 1.590 0.089
alluvial valley fans
#3 3 Muskingum K: 0.091
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

' P-1
773 .
772 . . . .:. . . . : . . . .:. . . . : . . . ... . . . : . . . : . . . . . . : . . . . : . .
771 . . . ... . . . : . . . ... . . . : . . . ... . . . : . : . . . ... . . . : . . . ... . . . .. . . . ... . . .
770 ° . . . ... . . . . . . . . . . .
w 769 C fl: . . . . . . . . . . : . . . . . . ; . .
768 . .:. . . Q. . . . . . . . . . . . . . . . . . . . . : . . : . . . . : . .
767 = -+
0.0 0.2 0.4 0.6 0.8 1 .0 1 .2 1 .4 1 .6 1 .8 2.0 2.2 2.4 2.6 2.8
Capacity (ac-ft)
F

Elevation (ft)
­4 ­4 --I --4 J J --I --A v
W O W W W v v v v
O W M O N W
O
:
ro
o
v
v
O � . . .:. . . : . . . :. . . .:. . . . . . . : .:. .
W
0

.._.__.. _.. .. _.. ..........__. .. ..
I Elevation (ft)
.A, 0) 00 0 N A
O -
5L0).0. •. . . . . . . . . . . . . . . . .•. . . .
m
. . .. . . . .�� . . . .
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0

SEDCAD 4 for Windows
Cnnvri.,ro io4n-oMna�muia i Rrh,wF
_ I
Keller Mining-Sand Mine & Recycle
Kannapolis, NC
MGE Proj. 220703.440
25 YR124 HR STORM
Jerry L. Meade
MEADE GUNNELL engineering, PC
P.O. Box 790
Cornelius, NC 28031
Phone: [phone]
Email: [e-mail]
Filename: KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
' r.—Hmht'i o.p-9Mn0omah 1 Gb,uaF
2
Genera/Information
Storm Information;
Storm Type: NRCS Type II
Design Storm: 25 yr-24 hr
Rainfall Depth: 6.010 inches
Particle Size Distribution;
Size(MM) S-2
9,5000 100,000%
4.7500 97.000%
2.0000 64.700%
0.4250 54.000%
0.1500 36.700%
0.0750 29,000%
0.0184 20.700%
0.0056 15.600%
0.0012 14.400%
Filename:KellerSandMine25yr.sr4 Printed 05-29-2023

SEDCAD 4 for Windows
3
Structure Networking;
Type Stru (flows Stru Musk. K Musk.X Description
# into) # (hrs)
Pond #1 ==> #2 0.000 0.000 P-1
Pond #2 =_> #3 0.000 0.000 P-2
Pond #3 =_> End 0.000 0.000 P-3
11 #1
Pond
#2
Pond
#3
Pond
Filename: KellerSandMine25yr.so4 Printed 05-29-2023

SEDCAD 4 for Windows
Cnnvnnhl lQQR-9Mn P—,c 1 Arh'—h
4
Structure Summary;
Immediate Total Total Peak Peak
Peak
Contributing Contributing Runoff Sediment Sediment Settleable 24VW
Area Area Discharge Volume (tons) Conc. Conc. (ml/I)
(ac) (ac) (cfs) (ac-ft) (mg/1) (MI/1)
In 46.89 4.31 102.0 33,942 22.03 11.19
#1 11.700 11.700
Out 16.47 4.26 16.8 4,193 0.06 0.05
In 19.64 4.55 16.8 4,023 0.06 0.04
#2 0.800 12.500
Out 13.02 4.26 15.3 3,309 0.00 0.00
In 93.82 13.19 77.8 10,006 5.21 2.45
#3 24.900 37.400
Out 15.74 7.17 15.9 1,938 0.00 0.00
Filename: KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
Cnmv'nFf'1 Q.R_9MnPamcla 111{11-h
5
Particle Size Distribution(s) at Each Structure
Structure #I (P-Z);
Size(mm) In Out
_ 9.5000 100.000% 100.000%
4.7500 97.022% 100.000%
2.0000 64.715% 100.000%
0.4250 54.012% 100.000%
0.1500 36.708% 1011.000%
0.0750 29.007% 100.000%
0.0184 20.705% 100.000%
0.0056 15.604% 94.932%
0.0012 14.403% 87.630%
Structure #2 (P-2);
Size(mm) In Out
9.5000 100.000%Q 100.000%
4.7500 100.000% 100.000%
2.0000 100.000% 100.000%
0.4250 100.000% 100.000%
0.1500 100.000% 100.000%
0.0750 100.000% 100.000%
0.0184 100.000% 100.000%
0.0056 94.941% 100,000%
0.0012 87.650% 96.248%
S
Structure #3;
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 98.098% 100.000%
2.0000 72.030% 100.000%
0.4250 63.369% 100.000%
0.1500 49.366% 100.000%
T0750 - 43-.1330/c 100:000vo
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
6
Size(mm) In Out
0.0184 36.415% 100.000%
0.0056 32.287% 100.000%
0.0012 30.578% 100.000% '
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
' rnnm. h+l On-vnln D-1. 1 R,h-.h
7
Structure Detail;
Structure #1 (Pond)
P-1
Pond Inputs:
Initial Pool Elev: 769.00 ft
Initial Pool: 0.09 ac-ft
*Sediment Storage: 0.33 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Riser Height Diameter Barrel Barrel Slope Manning's n Spillway Elev Holes per
(in) (ft) (in) Length(ft) (%) (ft) Elev
24.00 3.00 18.00 128.00 0.75 0.0150 770.00 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Diameter Length(ft) Manning's n
772.00 769.00 767.50 2.00 100.00 0.0140
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 772.32 ft
H'graph Detention Time: 2.67 hrs
Pond Model: CSiRS
Dewater Time: 1.39 days
Trap Efficiency: 83.56%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Filename: KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
C....,�,.�.i+oon-omn a�..,oi. i s,h-n
8
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
768.74 0.339 0.000 0.000 Top of Sed.Storage
769.00 0.360 0.090 0.000 Low hole SPW#1
769.50 0.404 0.281 0.215 10.75*
770.00 0.450 0.495 0.285 10.35 Spillway#1
770.50 0.501 0.732 6.970 10.70
771.00 0.555 0.996 13.430 0.45
771.50 0.611 1.287 14.093 0.35
772.00 0.670 1.607 14.726 0.45 Spillway#2
Spillway#3
772.32 0.672 1.825 16.470 0.40 Peak Stage
772.50 0.685 1.946 17.440
773.00 0.700 2.292 46.011
Detailed Discharge Table
Combined
Elevation Perf. Riser(cfs) Floating Siphon Emergency Total
(ft) (cfs) Spillway(cfs) Discharge
(cam)
768.74 0.000 0.000 0.000 0.000
769.00 2.00>0.000 0.000 0.000 0.000
769.50 0.149 0.066* 0.000 0.215
770.00 0.210 0.075* 0.000 0.285
770.50 6.886 0.083* 0.000 6.970
771,00 13.339 0.091* 0.000 13.430
771.50 13.995 0.098* 0.000 14.093
772.00 14.622 0.105 0.000 14.726
772.50 15.223 0.111 2.106 17.440
773.00 15.801 0.117 30.093 46.011
Structure #2 (Pond)
P-2
Pond Inputs:
Initial Pool Elev: 766.50 ft
Initial Pool: 0.15 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Filename: KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
Cnnv Inh110OH-?nIn P.-.1. I Plhunh
9
Riser Barrel Number of
Diameter Riser ftelght Diameter Length
Barrel Barrel lope Manning's n Spillway Elev Holes per
(in) ( ) (in) ( ) ( ) ( ) Elev
24.00 5.00 18.00 220.00 0.50 0.0150 770.00 2
Emergency SpillwaX
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
771.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 770.96 ft
H'graph Detention Time: S.23 hrs
Pond Model: CSTRS
Dewater Time: 2.20 days
Trap Efficiency: 8.93%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.00 0.000 0.000 . 0.000 Top of Sed.Storage -
765.50 0.043 0.007 0.000
766.00 0.170 0.057 0.000
766.50 0.209 0.151 0.000 Low hole SPW#1
767.00 0.252 0.266 0.149 9.37*
767.50 0.299 0.404 0.210 7.92*
768.00 0.350 0.566 0.406 4.83*
768.50 0.369 0.746 0.507 6.60
769.00 0.389 0.935 0.738 5.60
769.50 0.409 1.135 0.871 4.35
770.00 0.430 1.345 0.983 7.00 Spillway#1
770.50 0.449 1.564 6.886 6.20
770.96 0.468 1.778 13.024 0.90 Peak Stage
771.00 0.469 1.794 13.496 Spillway#2
771.50 0.489 2.034 16.069
772.00 0.510 2.283 44.508
772.50 0.554 2.549 80.830
773.00 0.600 2.838 128.194
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
10
Detailed Discharge Table
Combined
Elevation Emergency Total
Perf. Riser(crs)
(ft) Spillway(cts) Discharge
(cfs)
765.00 0.000 0.000 0.000
765.50 0.000 0.000 0.000
766.00 0.000 0.000 0.000
766.50 2.00>0.000 0.000 0.000
767.00 0.149 0.000 0.149
767.50 2.00>0.210 0.000 0.210
768.00 0.406 0.000 0.406
768.50 2.00>0.507 0.000 0.507
769.00 0.738 0.000 0.738
769.50 0.871 0.000 0.871
770.00 0.983 0.000 0.983
770.50 6.886 0.000 6.886
771.00 13.496 0.000 13.496
771.50 13.963 2.106 16.069
772.00 14.415 30.093 44.508
772.50 14.554 65.976 80.830
773.00 15.279 112.915 128.194
Structure #3 (PondJ
P-3
Pond Inputs:
Initial Pool Elev: 766.00 ft
Initial Pool: 0.51 ac-ft
*Sediment Storage: 0.63 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Riser Height Barrel Barrel Slope Spillway Elev
Diameter (ft) Diameter Length(ft) (off) Manning's n (ft) Holes per
(in) (in) Elev
36.00 7.00 18.00 100.00 1.00 0.0150 771.50 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Di(ime)ter Length(ft) Manning's n
772.00 766.00 763.00 2.00 100.00 0.0140
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
11
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 20.00
Pond Results:
Peak Elevation: 772.20 ft
H'graph Detention Time: 4.21 hrs
Pond Model: CSTRS
Dewater Tme: 20.44 days
Trap Efficiency: 79.58%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time.
(ac) (ac-ft) (cfs) (hrs)
765.32 0.630 0.000 0.000 Top of Sed.Storage
765.50 0.688 0.119 0.000
766.00 0.870 0.508 0.000
1 766.50 0.909 0.952 0.091 59.21*
767.00 0.948 1.417 0.098 57.31*
767.50 0.989 1.901 0.105 55.92*
768.00 1.030 2.405 0.111 54.90* Low hole SPW#1
768.50 1.071 2.931 0.154 41.16*
769.00 1.113 3.477 0.176 37.63*
769.50 1.156 4.044 0.193 35.57*
770.00 1.200 4.633 0.208 34.20*
770.50 1.241 5.244 0.260 28.45*
771.00 1.284 5.875 0.288 26.52*
771.50 1.326 6.527 0.312 25.30* Spillway#1
772.00 1.370 7.201 10.484 33.05 Spillway#2
Spillway#3
772.20 1.419 7.487 15.735 1.30 Peak Stage
772.50 1.459 7.908 23.471
773.00 1.550 8.660 75.399
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
12
Combined
Elevation Floating Siphon Emergency Total
(ft) Perf. Riser(cfs) (cfs) Spillway(cfs) Discharge
(cfs)
765.32. 0.000 0.000 0.000 0.000
765.50 MOO 0.000 0.000 0.000
766.00 0.000 0.000 0.000 0.000
766.50 0.000 0.091* 0.000 0.091
767.00 0.000 0.098* 0.000 0.098
767.50 0.000 0.105* 0.000 0.105
768.00 1.00>0.000 0.111* 0.000 0.111
768.50 0.037 0.117* 0.000 0.154
769.00 0.053 0.123* 0.000 0.176
769.50 0.064 0.129* 0.000 0.193
770.00 1.00>0.074 0.134* 0.000 0.208
770.50 0.120 0.139* 0.000 0.260
771.00 0.143 0.144* 0.000 0.288
771.50 0.163 0.149* 0.000 0.312
772.00 10.330 0.154 0.000 10.484
772.50 19.167 O.1S9 4.145 23.471
773.00 19.692 0.164 55.544 75.399
Filename: KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
• Cnnvrinhl 1 OOA-onto P-md I -rh-K
13
Subwatershed Hydrology Detail;
SWS Area Time of Musk K Curve Peak Runoff
Stru SWS Conc MuskX UHS Discharge Volume
# # (ac) (hrs) (hrs) Number (cfs) (ac-ft)
#1 1 0.600 0.001 0.096 0.242 91.000 TR55 2.64 0.248
2 7.500 0.115 0.000 0.000 91.000 TR55 32.97 3.102
3 3.600 0.093 0.092 0.267 74.0D0 TR55 11.99 0.957
E 11,700 46.89 4,307
#2 1 0.800 0.001 0.123 0.231 86.000 TR55 3.32 0.294
71 12.500 19.64 4.554
#3 1 2.100 0.092 0.060 0.307 91.000 TR55 9.23 0.868
2 13.200 0.118 0.000 0.000 91.000 TP55 58.03 5.460
3 9.600 0.163 0.091 0.267 74.000 TR55 30.06 2.594
E 37.400 93.82 13.186
Subwatershed Sedimentology Detail;
Peak Peak
Stru SWS S# Sediment Sediment Settleable 24VW
Soil K L(ft) S (%) C P P
# # (tons) Conc. Conc (mill)
(mg/1) (ml/1)
#1 1 0.170 50.00 33.00 0.4500 1.0000 1 22.2 116,831 75.83 41.22
2 0.170 100.00 5.00 0.4500 1.0000 1 60.0 25,422 16.50 9.15
3 0.240 100.00 5.00 0.3600 1.0000 1 19.9 28,780 18.68 9.84
102.0 33,942 22.03 11.19
#2 1 0.170 50.00 33.00 0.4500 1.0000 1 27.8 122,038 79.21 43.37
E 16.8 4,023 0.06 0.04
#3 1 0.240 100.00 5.00 0.0820 1.0000 1 3.7 5,748 3.73 2.03
2 0.170 100.00 2.00 0.4500 1.0000 1 45.7 11,067 7.16 3.98
3 0.240 100.00 5.00 0.0820 1.0000 1 13.1 6,965 4.48 2.39
7 77.8 10,006 5.21 2.45
Subwatershed Time of Concentration Details;
Stru SWS land Flow Condition Slope(%) Vert. Dist. Horiz. Dist. Velocity Time(hrs)
# # (ff) (ft) (fps)
#1 1 5.Nearly bare and untitled,and 50.00 24.00 48.00 7.070 0.001
alluvial valley fans
#1 1 Time of Concentration: 0.001
Filename: KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
• CnnvrinM loon_9Mn Oamcla 1 q,h.,.h
14
Stru S#S Land Flow Condition Slope(°/a) Vert. Dist. Hori(ft Dist. velocity Time(hrs)
#1 2 5. Nearly bare and unfilled,and 2.46 16.00 650.00 1.560 0.115
alluvial valley fans
#1 2 Time of Concentration: 0.115
#1 3 3.Short grass pasture 5.32 33.00 620.00 1.840 0.093
#1 3 Time of Concentration: 0.093
#2 1 S. Nearly bare and unfilled,and 5.33 32.00 600.00 2.300 0.072
alluvial valley fans
#2 1 Time of Concentration: 0.001
#3 1 3.Short grass pasture 5.67 36.00 635.00 1.900 0.092
#3 1 Time of Concentration: 0.092
#3 2 S.Nearly bare and unfilled,and 2.00 12.00 600.00 1.410 0.118
alluvial valley fans
#3 2 Time of Concentration: 0.118 .
#3 3 2.Minimum tillage cultivation 4.72 30.00 635.00 1.080 0.163
#3 3 Time of Concentration: 0.163
Subwatershed Muskingum Routing Details;
Stru SwS Land Flow Condition Slope(%) Vert.Dist. Hori(zft)Dist. Velocity Time(hrs)
#1 1 S. Nearly bare and untilled,and 2.55 14.00 550.00 1.590 0.096
alluvial valley fans
#1 1 Muskingum K: 0.096
#1 3 S. Nearly bare and untitled;and 32.73 18.00 55.00 5.720 0.002
alluvial valley fans
5. Nearly bare and untilled,and 2.40 12.00 500.00 1.540 0.090
alluvial valley fans
#1 3 Muskingum K: 0.092
#2 1 S. Nearly bare and untilled,and 2.33 14.00 600.00 1.520 0.109
alluvial valley fans
#2 1 Muskingum K: 0.123
#3 1 S. Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5. Nearly bare and untilled,and 5.88 30.00 510.00 2.420 0.058
alluvial valley fans
#3 1 Muskingum K: 0.060
#3 3 S. Nearly bare and unfilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5. Nearly bare and untilled,and 2.55 13.00 510.00 1.590 0.089
alluvial valley fans
#3 3 Muskingum K: - 0.091
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
• r n.,dnM1P'laoa_omn Uomdo Rr6u,ah
Keller Mining-Sand Mine & Recycle
Kannapolis, NC
MGE Proi. 220703.440
50 YR124 HR STORM
Jerry L. Meade
MEADE GUNNELL engineering, PC
P.O. Box 790
Cornelius, NC 28031
Phone: [phone]
Email: [e-mail]
Filename: KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
2
Genera/Information
Storm Information;
Storm Type: NRCS Type II
Design Storm: 50 yr-24 hr
Rainfall Depth: 6.770 inches
Particle Size Distribution;
Size(mm) S-2
9.5000 100.000%
4.7S00 97.000%
2.0000 64.700%
0.4250 54.000%
0.1500 36.700%
0.0750 29.000%
0.0184 20.700%
0.0056 15.600%
0.0012 14.400%
-Filename: KellerSandMine25yr.sa4 Printed 0530-2023

SEDCAD 4 for Windows
3
Structure Networking;
Type Stru (Flows Stru Musk. K Musk.X Description
# into) # (hrs)
Pond #1 ==> #2 0.000 0.000 P-1
Pond #2 =_> #3 0.000 0.000 P-2
Pond #3 =_> End 0.000 0.000 P-3
Ii #1
Pond
#2
Pond
#3
Pond
Filename: KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
• l:nmminhb'I PQA_'JII1II Pamcla � .Crhwah
•4
Structure Summary;
Immediate Total Total Peak Peak
Peak Contributing Contributing Runoff Sediment Sediment Settleable 24VW
Area Area Discharge Volume (tons) Conc. Conc. (ml/1)
(ac) (ac) (cfs) (ac-ft) (mg/1) (MI/1)
In 53.91 5.00 119.6 34,104 22.13 11.30
#1 11.700 11.700
Out 26.61 4.96 19.8 4,392 0.07 0.05
#2
In 0.800 12.500 30.30 5.30 19.9 4,182 0.07 0.05
Out 13.90 5.00 18.3 3,441 0.00 0.00
#3
In 24.900 37.400 108.69 15.40 90.8 10,039 SAS 2.42
Out 21.49 9.38 21.4 2,014 0.00 0.00
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDDAD 4 for Windows
5
Partic% Size Distribution(i) at Each Structure
Structure #1 (P-i);
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 97.022% 100.000%
2.0000 64.715% 100.000%
0.4250 54.012% 100.000%
0.1500 36.708% 100.000%
0.0750 29.007% 100.000%
0.0184 20.705% 100.000%
0.0056 15.604% 94.202%
0.0012 14.403% 86.956%
Structure #2 (P-2):
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 100.000"/u 100.000%
2.0000 100.000% 100.000%
0.4250 100.000% 100.000%
0.1500 100.000% 100.000%
0.0750 100.000% 100.000%
0.0184 100.000% 100.000%
0.0056 94.212% 100.000%
0.0012 86.977% 94.592%
i
Structure #3:
Size(mm) In Out
9.5000 100,000% 100.000%
4.7500 98.247% 100.000%
2.0000 72.803% 100.000%
0.4250 64.088% 100.000%
0.1500 49.998% 100.000%
0.0750 43.727°/a 100.000%
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
• CnnvrinFi'I OOA_9nln P—id I Rrh-.h
6
Size(mm) In Out
0.0184 36.967% 100.000%
0.0056 32.813% 100.000%
0.0012 30.749% 100.000% y
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
Cnnvdnhf 4QoA-9n1n P—i. 1 Rrhuuh
/
Structure Detail;
Structure #1 (Pond1
P-1
Pond Inputs:
Initial Pool Elev: 769.00 ft
Initial Pool: 0.09 ac-ft
*Sediment Storage: 0.33 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Riser Height Diameter Barrel Barrel Slope Spillway Elev
Diameter (ft) Length (ft) (070) Manning's n (it) Holes per
(in) (in) Elev
24.00 3.00 18.00 128.00 0.75 0.0150 770.00 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Di(meter Length(it) Manning's n
772.00 769.00 767.50 2.00 100.00 0.0140
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(it)
772.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 772.66 it
H'graph Detention Time: 2.45 hrs
Pond Model: CSTRS
Dewater Time: 1.40 days
Trap Efficiency: 83.44%
Dewatenng time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
r....mnhi 100R_vmn aamoi� i s�humh
S
Area Capacity Discharge Dewater
Elevation Time
(ac) (arft) (cfs) (hrs)
768.74 0.339 0.000 0.000 Top of Sed.Storage
769.00 0.360 0.090 0.000 Low hole SPW#1
769.50 0.404 0.281 0.215 10.75*
770.00 0.450 0.495 0.285 10.40 Spillway#1
770.50 0.501 0.732 6.970 10.50
771.00 0.555 0.996 13.430 0.50
771.50 0.611 1.287 14.093 0.35
772.00 0.670 1.607 14.726 0.40 Spillway#2
Spillway#3
772.50 0.685 1.946 17.440 0.55
772.66 0.690 2.057 26.614 0.15 Peak Stage
773.00 0.700 2.292 46.011
Detailed Discharge Table
Combined
Elevation Pert Riser(cfs) Floating Siphon Emergency Total
(ft) (cfs) Spillway(cfs) Discharge
(cfs)
768.74 0.000 0.000 0.000 0.000
769.00 2.00>0.000 0.000 0.000 0.000
769.50 0.149 0.066* 0.000 0.215
770.00 0.210 0.075* 0.000 0.285
770.50 6.886 0.083* 0.000 6.970
771.00 13.339 0.091* 0.000 13.430
771.50 13.995 0.098* 0.000 14.093
772.00 14.622 0.105 0.000 14.726
772,50 15.223 0.111 2.106 17.440
773.00 15.801 0.117 30.093 46.011
Structure #2(Pond)
P-2
Pond Inputs:
Initial Pool Elev: 766.50 ft
Initial Pool: 0.15 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Filename:KellerSandMine25yr.so4 Printed 05-30-2023

SEDCAD 4 for Windows
9
Riser Barrel Number of
Diameter Riser Height Diameter Le Barrel Barren Slope Manning Is n Spillway Elev Holes per
(in) ( ) (in) 9 ( ) ( ) ( ) Elev
24.00 5.00 18.00 220.00 0.50 0.0150 770.00 2
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
771.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 771.08 ft
H'graph Detention Time: 4.61 hrs
Pond Model: CSTRS
Dewater Time: 2.21 days
Trap Efficiency: 8.05%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.00 0.000 0.000 0.000 Top of Sed.Storage
765.50 0.043 0.007 0.000
766.00 0.170 0.057 0.000
766.50 0.209 0.151 0.000 Low hole SPW#1
767.00 0.252 0.266 0.149 9.37*
767.50 0.299 0.404 0.210 7.92*
768.00 0.350 0.566 0.406 4.83*
768.50 0.369 0.746 0.507 6.50
769.00 0.389 0.935 0.738 5.55
769.50 0.409 1.135 0.871 4.35
770.00 0.430 1.345 0.983 6.20 Spillway#1
770.50 0.449 1.564 6.686 7.30
771.00 0.469 1.794 13.496 0.75 Spillway#2
771.08 0.472 1.832 13.900 0.30 Peak Stage
771.50 0.489 2.034 16.069
772.00 0.510 2.283 44.508
772.50 0.554 2.549 80.830
773.00 0.600 2.838 128.194
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
r� rinhi goon-9mn P-i. j .c,h-h
10
Detailed Discharge Table
Combined
Elevation Emergency Total
(ft) PerF. Riser(cis) Spillway(cfs) Discharge
(cfs)
765.00 0.000 0.000 0.000
765.50 0.000 0.000 0.000
766.00 0.000 0.000 0.000
766.50 2.00>0.000 0.000 0.000
767.00 0.149 0.000 0.149
767.50. 2.00>0.210 0.000 0.210
768.00 0.406 0.000 0.406
768.50 2.00>0.507 0.000 0.507
769.00 0.738 0.000 0.738
769.50 0.871 0.000 0.871
770.00 0.983 0.000 0.983
770.50 6.886 0.000 6.886
771.00 13.496 0.000 13.496
771.50 13.963 2.106 16.069
772.00 14.415 30.093 44.508
772.50 14.854 65.976 80.830
773.00 15.279 112.915 128.194
Structure #3(Pond
P-3
Pond Inputs:
Initial Pool Elev: 766.00 ft
Initial Pool: 0.51 ac-ft
*Sediment Storage: 0.63 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Riser Height Barrel Barrel Slope Spillway Elev
Diameter (ft) Diameter Length(ft) (^fin) Manning's n (ft) Holes per
(in) (in) Elev
36.00 7.00 18.00 100.00 1.00 0.0150 771.50 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Di(me)ter Length(ft) Manning's n
772.00 766.00 763.00 2.00 100.00 0.0140
Filename: KellerSandMine25yr.sc4 Printed 05-30-2023

SED CAD 4 for Windows
Cnn,minhi�ooH-OMO oam=lo 1 ArhwaM ..
Emergency Spillway
'Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 20.00
Pond Results:
Peak Elevation: 772.42 ft
H'graph Detention Time: 3.31 hrs
Pond Model: CSTRS
Dewater Time: 20.47 days
Trap Efficiency: 76.43%
Dewatenng time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (ds) (hrs)
765.32 0.630 0.000 0.000 Top of Sed, Storage
765.50 0.688 0.119 0.000
766.00 0.870 0.508 0.000
766.50 0.909 0.952 0.091 59.21*
767.00 0.948 1.417 0.098 57.31*
767.50 0.989 1.901 0.105 55.92*
768.00 1.030 2.405 0.111 54.90* Low hole SPW#1
768.50 1.071 2.931 0.154 41.16*
769.00 1.113 3.477 0.176 37.63*
769.50 1.156 4.044 0.193 35.57*
770.00 1.200 4.633 0.208 34.20*
770.50 1.241 5.244 0.260 28.45*
771.00 1.284 5.875 0.288 26.52*
771.50 1.326 6.527 0.312 25.30* Spillway#1
- 772.00 1.370 7.201 10.484 33.05 Spillway#2
Spillway#3
772.42 1.449 7.800 21.487 2.00 Peak Stage
772.50 1.459 7.908 23.471
773.00 1.550 8.660 75.399
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDPAD 4 for Windows
l:nnvAnhf MOON-Onln P-1. I R,humh
12
Combined
Elevation Perf.Riser(cfs) Floating Siphon Emergency Total
(ft) (cfs) Spillway(cfs) Discharge
(cfs)
765.32 0.000 0.000 0.000 0.000
765.50 0.000 0.000 0.000 0.000
766.00 0.000 0.000 0.000 0.000
766.50 0.000 0.091* 0.000 0.091
767.00 0.000 0.098* 0.000 0.098
767.50 0.000 0.105* 0.000 0.105
768.00 1.00>0.000 0.111* 0.000 0.111
768.50 0.037 0.117* 0.000 0.154
769.00 0.053 0.123* 0.000 0.176
769.50 0.064 0.129* 0.000 0.193
770.00 1.00>0.074 0.134* 0.000 0.208
770.50 0.120 0.139* 0.000 0.260
771.00 0.143 0.144* 0.000 0.288
771.50 0.163 0.149* 0.000 0.312
772.00 10.330 0.154 0.000 10.484
772.50 19.167 0.159 4.145 23.471
773.00 19.692 0.164 55.544 75.399
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
13
Sub watershed Hydrology Detail:
Time of Peak Runoff
Stru SWS SWS Area Conc Musk K Musk Curve UHS Discharge Volume _
# # (ac) (hrs) Number
(hrs) (cfs) (ac-ft)
#1 1 0.600 0.001 0.096 0.242 91.000 TR55 3.00 0.285
2 7.500 0.115 0.000 0.000 91.000 TR55 37.46 3.568
3 3.600 0.093 0.092 0.267 74.000 TR55 14.19 1.152
11.700 53.91 5.004
#2 1 0.800 0.001 0.123 0.231 86.000 TR55 3.81 0.342
12.500 30.30 5.300
#3 1 2.100 0.092 0.060 0.307 91.000 TR55 10.49 0.999
2 13.200 0.118 0.000 0.000 91.000 TR55 65.93 6.279
3 9.600 0.163 0.091 0.267 74.000 TR55 35.93 3.122
37.400 108.69 15.403
Sub watershed Sedimentology Detail;
Peak Peak
Stru SWS Soil K L(ft) S(%) C P PS# Sediment Sediment Settleable 24VW
# # (tons) Conc. Conc (MI/1)
(mg/1) (MI/1)
#1 1 0.170 50.00 33.00 0.4500 1.0000 1 25.8 118,172 76.70 41.58
2 0.170 100.00 5.00 0.4500 1.0000 1 69.6 25,704 16.68 9.24
3 0.240 100.00 5.00 0.3600 1.0000 1 24.2 28,941 18.78 9.96
1 119.6 34,104 22.13 11.30
#2 1 0.170 50.00 33.00 0.4500 1.0000 1 32.6 123,303 80.03 43.77
E 19.9 4,182 0.07 0.05
#3 1 0.240 100.00 5.00 0.0820 1.0000 1 4.3 5,816 3.77 2.05
2 0.170 100.00 2.00 0.4500 1.0000 1 53.1 11,190 7.26 4.02
3 0,240 100.00 5.00 0.0820 1.0000 1 16.1 7,066 4.55 2.44
E 90.8 10,039 5,18 2.42
Subwatershed Time of Concentration Details:
Stru SWS Land Flow Condition Slope(%) Vert. Dist. Horiz. Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 1 S. Nearly bare and untilled,and 50.00 24.00 48.00 7.070 0.001
alluvial valley fans
#1 1 Time of Concentration: 0.001
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
l:nm.dnM 1009-9nln Camoh i q,h- h 14
Stru SwS Lend Flow Condition Slope(%) Vert. Dist. Horiz. Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 2 5. Nearly bare and unfilled,and 2.46 16.00 650.00 1.560 0.115
alluvial valley fans
#1 2 Time of Concentration: 0.115
#1 3 3.Short grass pasture 5.32 33.00 620.00 1.840 0.093
#1 3 Time of Concentration: 0.093
#2 1 5. Nearly bare and untilled,and 5.33 32.00 600.00 2.300 0.072
alluvial valley fans
#2 1 Time of Concentration: 0.001
#3 1 3.Short grass pasture 5.67 36.00 635.00 1.900 0.092
#3 1 Time of Concentration: 0.092
#3 2 S.Nearly bare and untilled,and 2.00 12.00 600.00 1.410 0.118
alluvial valley fans
#3 2 Time of Concentration: 0.118
#3 3 2. Minimum tillage cultivation 4.72 30.00 635.00 1.080 0.163
#3 3 Time of Concentration: 0.163
Subwatershed Muskingum Routing Details;
Stru SWS Land Flow Condition Slope(%) Vert. Dist. Horiz. Dist Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 1 5. Nearly bare and untilled,and 2.55 14.00 550.00 1.590 0.096
alluvial valley fans
#1 1 Muskingum K: 0.096
#1 3 5. Nearly bare and untilled,and 32.73 18.00 55.00 5.720 0.002
alluvial valley fans
5. Nearly bare and untilled,and 2.40 12.00 500.00 1.540 0.090
alluvial valley fans
#1 3 Muskingum K: 0.092
#2 1 S. Nearly bare and unfilled,and 2.33 14.00 600.00 1.520 0.109
alluvial valley fans
#2 1 Muskingum K: 0.123
#3 1 S. Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5. Nearly bare and untilled,and 5.88 30.00 510.00 2.420 0.058
alluvial valley fans
#3 1 Muskingum K: 0.060
#3 3 S. Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5. Nearly bare and untilled,and 2.55 13.00 510.00 1.590 0.089
alluvial valley fans
#3 3 Muskingum K: 0.091
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4.0
C--Hri ht 1°PR-9ntn P.,.F. I Rrh,uoh 1
D-1 Diversion Ditch
Material: Coarse gravel noncolloidal
Trapezoidal Channel
Left Right Freeboard Freeboard Freeboard Limiting
Bottom Sideslope Sideslope Slope(%) Manning's n Depth(ft) %of Depth Mult.x Velocity
WidRatio Ratio (VxD) (fps)
20.00 3.0:1 3.0:1 2.0 0.0250 0.50 6.0
w/o Freeboard w/Freeboard
Design Discharge: 75.00 cis
Depth: 0.60 ft 1.10 ft
Top Width: 23.63 ft 26.63 ft
Velocity: 5.68 fps
X-Section Area: 13.19 sq ft
Hydraulic Radius: 0.554 ft
Froude Number: 1.34
SEDCAD Utility Run Printed 05-30-2023

.,f7E�?CAD 4 0
P-3 Outlet Pipe
Plunge Pool Inputs:
Pipe Pipe Outlet Tailwater Channel
Diameter Pipe Slope Elevation Elevation Outlet
Elevation
(in) M vat v Elevation D50(ft)
(ft)
18.00 1.00 762.00 761.50 761.00 0.75
Plunge Pool Results:
Plunge Pool Length: 11.80 ft
Plunge Pool Width: 6.04 ft
Plunge Pool Depth(to top of rock): 1.43 ft
Froude Number: 2.29
Horiz Distance from Pipe Outlet to 3.11 ft
Center of Jet:
Horiz Distance from Pipe Outlet to 5.37 ft
Center of Pool:
Velocity at Pipe Outlet: 11.32 fps
Velocity at Jet Impingement: 14.44 fps
SEDCAD Utility Run Printed 05-30-2023