WQCS00284_Variance Request_20220802

NORRIS & TUNSTALL
CONSULTING ENGINEERS P.C.
2602 Iron Gate Dr. Suite 102 1429 Ash-Little River Road
Wilmington,NC 28412 Ash,NC 28420
[phone] [phone]
[phone] Fax [phone] Fax
John S.Tunstall,P.E. J.Phillip Norris,P.E.
T.Jason Clark,P.E. Joseph K.Bland,P.E.
Robbie P.Hennelly,E.I. Thomas J. Scheetz,P.E.
July 28, 2022
NC DEQ -Water Quality Section
Attn: PERCS Unit Supervisor
512 N. Salisbury St., RECEIVED
Archdale Bldg. 9th Floor Suite 925
Raleigh, NC 28604 AUG 0 2 2022
Re: Variance Request - WQCS00284 NCDEQ/DWR/NPDES
PROJECT: COASTAL MART #1
N&T Project No.: 20099
Dear Supervisor,
Please find enclosed the NCDEQ Variance/Alternate Design Request Form, Calculations, and
one set of plans for this project.
Please let us know if you need anything additional. Thank you!
Sincerely,
NORRIS & TUNSTALL
CONSULTING ENGINEERS, P.C.
/ 3CJ
Thomas J. Sch tz, P.E.
TJ S/ttw
20099 07-28-22 s-swr-Itr-peres variance
cc: Brunswick County/ Bill Pinnix
NCDEQ /Tyler Benson
NCBELS License C-3641

i' �w / State of North Carolina
10R
Department of Environment and Natural Resources
Division of Water Resources
15A NCAC 02T.0105—VARIANCE/ALTERNATIVE DESIGN REQUEST
Division of Water Resources INSTRUCTIONS FOR FORM:VADC 10-14&SUPPORTING DOCUMENTATION
Plans,specifications and supporting documents shall be prepared in accordance with, 15A NCAC 02T .0100, 15A NCAC 02T
.0300, Division Policies and good engineering practices. Failure to submit all required items will necessitate additional
processing and review time,and may result in return of the request.
For more information, visit the Wastewater Branch's website at:
http://portancdenr.org/web/wq/swp/ps/cs/ext
General— When submitting a request, please use the following instructions as a checklist in order to ensure all required items are
submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time and reduce the
amount of requested additional information. Unless otherwise noted, submit one original and one copy of the request and
supporting documentation.
A. Cover Letter(Required for All Request Packages): n r i��D
S List all items included in the request package and a brief description of the requested permittin
fc
•Submit a detailed description of specific criteria that a variance request is submitted for. ti U G 0.2 2022
15A NCAC 02T,Minimum Design Criteria(MDC)for the permitting of Gravity Sewers,&
Minimum Design Criteria(MDC)for the Permitting of Pump Stations and Force Mains ��Dn �NPDES
S Submit a detailed description why the project cannot comply with 15A NCAC 02T or adopt esi M i .
S Submit a detailed description of how the alternative design will meet the requirements of 15A NCAC 02T.0105(n)
B. Request Form(VADC 10-14)(Required for All Request Packages):
S Submit the completed and appropriately executed VADC 10-14 request form.
S The Applicant's certification of the request shall be signed in accordance with 15A NCAC 02T.106(b). Per 15A NCAC
02T.0106(c),an alternate person may be designated as the signing official if a delegation letter is provided from a person
who meets the criteria in 15A NCAC 02T.0106(b).
S The Professional Engineer's Certification of the request shall be signed, sealed and dated by a North Carolina licensed
Professional Engineer.
C. Engineering Plans(Required for All Request Packages):
S Submit one set of detailed plans that have been signed, sealed and dated by a North Carolina licensed Professional
Engineer, pertinent to the variance request. Individual plan sheets related to the request may be submitted instead of
complete plan sets.
S Plans shall represent a completed design and not be labeled with preliminary phrases(e.g.,FOR REVIEW ONLY,NOT
FOR CONSTRUCTION,etc.)that indicate they are anything other than final plans. However,the plans may be labeled
with the phrase: FINAL DESIGN-NOT RELEASED FOR CONSTRUCTION.
D. Specifications(Required for All Request Packages):
S Per 15A NCAC 02T .0304(b)(2), submit specifications that have been signed, sealed and dated by a North Carolina
licensed Professional Engineer,pertinent to the variance request.
S Specifications shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW
ONLY,NOT FOR CONSTRUCTION,etc.)that indicate they are anything other than final specifications. However,the
specifications may be labeled with the phrase: FINAL DESIGN-NOT RELEASED FOR CONSTRUCTION.
E. Engineering Calculations(All Request Packages):
❑ Per 15A NCAC 02T .0305(b)(3), submit engineering calculations that have been signed, sealed and dated by a North
Carolina licensed Professional Engineer,pertinent to the variance request.
F. Applicable Sewer Extension Application and Supporting Documentation
(Required if submitted in conjunction with a variance request)
❑ Submit the completed and appropriately executed application if provided in conjunction with the request.
> This is exclusive to projects requiring a full technical review(ASEA 08-13 &SSEA 08-13).
> Submission of FTA 10-14 and supporting documents to the regional office is only allowed once the variance has
been approved by the Central Office. Submission prior will result in the application being returned.
INSTRUCTIONS FOR FORM: VADC 10-14&SUPPORTING DOCUMENTATION Page 1 of 2

15A NCAC 02T.0105—Select Code Related to Variance/Alternative Design Criteria
(b)...The applicant shall provide adequate documentation to the Division to ensure that the proposed system will meet all design
and performance criteria as required under this Subchapter and other applicable rules,be operated as a non-discharge system,and
protect surface water and groundwater standards.Variances to this Subchapter or adopted design criteria must be specifically
requested in the application and, if approved pursuant to Paragraph (n) of this Rule, incorporated into the permit. The
Division may accept certification from a licensed or certified professional (e.g. Professional Engineers, Licensed Soil Scientist,
Licensed Geologist, Technical Specialist) that the design meets or exceeds minimum design criteria applicable to the project.
Division acceptance of certifications by the applicant or by licensed or certified professionals preparing reports for the application
shall not constitute approval of a variance to this Subchapter or applicable minimum design and performance criteria unless
specifically requested in the application and approved in the permit.
(n)The Director shall approve alternative Design Criteria in cases where the applicant can demonstrate that the alternative
design criteria will provide the following:
(1)equal or better treatment of the waste;
(2)equal or better protection of the waters of the state;and
(3)no increased potential for nuisance conditions from noise,odor or vermin.
THE COMPLETED REQUEST AND SUPPORTING DOCUMENTATION SHALL BE SUBMITTED TO:
ATTENTION: PERCS UNIT SUPERVISOR
By U.S.Postal Service: By Courier/Special Delivery:
1617 MAIL SERVICE CENTER 512 N.SALISBURY ST.SUITE 925
RALEIGH,NORTH CAROLINA 27699 RALEIGH,NORTH CAROLINA 27604
TELEPHONE NUMBER: [phone] FAX NUMBER: [phone]
INSTRUCTIONS FOR FORM: VADC 10-14&SUPPORTING DOCUMENTATION Page 2 of 2

State of North Carolina
, Dw R
Department of Environment and Natural Resources
Division of Water Resources
15A NCAC 02T.0105—VARIANCE/ALTERNATIVE DESIGN REQUEST
Division of Water Resources VADC 10-14&SUPPORTING DOCUMENTATION
Application Number: (if applicable,to be completed by DWR) 49.c-)U9�
I. APPLICANT INFORMATION:
1. Applicant's name:Brunswick County
2. Applicant type: ❑Individual ❑Corporation ❑General Partnership ❑ Privately-Owned Public Utility
❑ Federal ❑State ❑Municipal ®County
3. Signature authority's name:William L.Pinnix,P.E. per 15A NCAC 02T.0106(b) Title:Director of Engineering
4. Applicant's mailing address:PO Box 249, aibe.•_I .
City:Bolivia State:NC Zip:28422-
5. Applicant's contact information:
Phone number:(910)253- 1019 Email Address:[e-mail]
II. PROJECT INFORMATION:
1. Project name:Coastal Mart#1
2. Project status:® Proposed ❑Existing(if existing, Permit Number:
III. CONSULTANT INFORMATION:
1. Professional Engineer:Thomas J. Scheetz,P.E. License Number:54246
Firm:Norris&Tunstall Consulting Engineers,P.C.
Mailing address: 1429 Ash-Little River Road NW
City:Ash State:NC Zip:28420-
Phone number:[phone] Email Address:[e-mail]
IV. VARIANCE REQUEST:
1. Provide a detailed list of specific criteria that a variance request is submitted for:
(e.g., NCAC 02T.0305(f)-Separation, MDC for Pump Stations/Force Mains 3.04(A)(1)(b)—Discharge Piping Velocity,etc)
Increase in flow of pre-approved 1.680 GPD Brunswick County duplex grinder pump station. Proposed flow is 5,760 GPD
and has been demonstrated to be well within pump capabilities. ( R t'• 13 A..v,NS .C 3. \Illy4 aiNt2.1ADISI C),O?�$`t')
FORM: VADC 10-14 Page 1 of 2

•
Applicant's Certification per 15A NCAC 02T.0106(b):
CGrv% L. P Le. r'XJ P L J D t rG[S- or 0 f Cry p n eeJLIj attest that this request for
(Signature Authority's name&title from Request Item�J 1.3.)
C oa.s-E-a. I li
(Project name from Request Item 11.1.)
has been reviewed by me and is accurate and complete to the best of my knowledge. I also understand that if all required parts of
this request package are not completed and that if all required supporting information and attachments are not included,this request
package will be returned to me as incomplete. I understand that by certifying this variance request, I shall adhere to the
requirements of the variance approval should it be approved and all permit conditions should the permit be approved.
NOTE - In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement,
representation,or certification in any request package shall be guilty of a Class 2 misdemeanor,which may include a fine not to exceed
$10,000 as ,welll as civ. nalties up to$25,000 per violation.
Signature: V�� �f Date: -I 2C— Z
Professional Engineer's Certification:�
1 ' T n'wS O+ J. SCr\.ieJ2..—.. attest that this request for
t •
(Professional Engineer's name from Request Item 111.1.)
Cam. -a,I Ma+-*-I
(Project name from Request Item 11.1.)
has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications,
engineering calculations,and all other supporting documentation to the best of my knowledge. I further attest that to the best of my
knowledge the proposed design, in accordance with 15A NCAC 02T.0105(n) will provide; equal or better treatment of the waste;
equal or better protection of the waters of the state;and no increased potential for nuisance conditions from noise,odor,or vermin.
I further attest as been prepared in accordance with this request package and its instructions,as well as all applicable regulations and
statutes. Although other professionals may have developed certain portions of this submittal package, inclusion of these materials
under my signature and seal signifies that I have reviewed this material and have judged it to be consistent with the proposed design.
NOTE - In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement,
representation,or certification in any request package shall be guilty of a Class 2 misdemeanor,which may include a fine not to exceed
$10,000, as well as civil penalties up to$25,000 per violation.
North Carolina Professional Engineer's seal,signature, and date:
woottotwoot4v
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SEAL4:1•••7
-A . 54246 •N
° 'VGINE�� •4(//
,q J. S�',� cS, �t9�V2.
FORM: VADC 10-14 Page 2 of 2

NORRIS and TUNSTALL SANITARY SEWER LIFT
CONSULTING ENGINEERS, INC. STATION CALCULATIONS
PROJECT: Coastal Mart#1 N&T#: 20099
COUNTY: BRUNSWICK DATE: 7/7/2022
REVISED:
TABLE 1 -WASTEWATER DESIGN FLOW PER NCAC 15A 2T.0114
DESCRIPTION UNITS #UNITS GPD/UNIT GPD
Convenience Store w/food prep GPD 9600 sf 60 gal/100 sf 5760.0
0.0
AVG DAILY FLOW GPD 5760.0
NOTE: SEE ALLOCATION BREAKDOWN FOR THIS PROJECT
TABLE 2-PEAK FLOW PER NCAC 15A 2H .0219 MINIMUM DESIGN CRITERIA
VARIABLE UNITS VALUE NOTES
PF NA 2.5 PEAK FACTOR PER CODE
DOH HR/DAY 24 FOR AVG DAILY FLOW
DOM MIN/DAY 1440 FOR AVG DAILY FLOW
QA GPM 10.0 AVERAGE FLOW RATE
VMIN FPS 2.0 MDC FOR SCOUR
D IN 2.00 MIN SSFM DIA
QS GPM 22.0 MIN. SCOUR FLOW
,QMIN GPM 22.0 MIN. FLOW SSFM
TABLE 3 -WETWELL SPECIFICATIONS PER 15A 2H .0219 MINIMUM DESIGN CRITERIA
VARIABLE UNITS VALUE NOTES
CF TO GAL GAL/CF 7.48 CF TO GALLONS
CMIN CYC/HR 2.0 CYCLES PER HOUR
CMAX CYC/HR 8.0 CYCLES PER HOUR
TMIN MIN 7.5 MINIMUM CYCLE TIME
TMAX MIN 30.0 MAXIMUM CYCLE TIME
VMIN GAL 51.56 MINIMUM CYCLE VOLUME
VMAX GAL 206.25 MAXIMUM CYCLE VOLUME
DW FT 4.00 INSIDE DIAMETER WETWELL
HMIN FT 0.60 STORAGE HT AT MIN VOLUME
HMAX FT 2.20 STORAGE HT AT MAX VOLUME
H SELECT FT 0.20 STORAGE HT- ENG. SELECTION
TOP FT 36.15 LID ELEVATION TOP OF SLAB
IWT FT 36.15 RIM ELEV. UNDER SLAB
IGSS FT 33.15 GRAVITY LINE INVERT
FB FT 1.00 FREEBOARD SETTING
IP FT 2.00 MINIMUM POOL LEVEL
SA FT 32.65 ALARM ELEVATION
LPO FT 32.40 LAG PUMP ON ELEVATION
IPO FT 32.15 LEAD PUMP ON ELEVATION
IWB FT 31.95 ALL PUMPS OFF ELEVATION
WB FT 29.95 WELL BOTTOM ELEVATION
24 HR STORAGE PROVIDED N/A NO, PROVIDE AUTODAILER AND BACKUP
GENERATOR
c.orurrrrrrrgnhr.,"'Y
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4 : 54246 '�N
0,., 4'4'Q$NE��'* 40
/y'„Nl,4gryrrrl inNr�grNo //07/Gr�

. NORRIS and TUNSTALL SANITARY SEWER LIFT
CONSULTING ENGINEERS,INC. STATION CALCULATIONS
(PROJECT: Coastal Mart#1 NT#: 20099
COUNTY: BRUNSWICK DATE: 7/7/2022
EMPIRICAL EQUATION: DARCY-WEISBACH WITH HAZEN-WILLIAMS FRICTION"C" FACTOR
TABLE 4-FORCE MAIN SYSTEM PARAMETERS( FOR 4" PUBLIC MAIN)
VARIABLE QUANTITY UNITS NOTES
D 2.00 IN PIPE INSIDE DIAMETER
V 2.00 FPS MINIMUM SCOUR VELOCITY PER MDC PG 18
Q 22.0 GPM MINIMUM FLOW RATE FOR SCOUR
C 120 PER FORCED MAIN MDC PG 8
L 420 FT LENGTH OF PIPE +/-
(EXISTING DISCHARGE CONDITIONS
Hfm 102.4 FT EXISTING PRESSURE AT DISCHARGE POINT
He 0.0 FT ELEVATION DIFFERENCE SUMP TO HIGHEST SS
Hd 102.4 FT TOTAL DISCHARGE PRESSURE
FLOW f Hf Hd TDH HP EST
0 0.00 0.00 102 102.4 0.0
10 0.36 1.52 102 103.9 0.5
20 1.31 5.50 102 107.9 1.1
22 1.56 6.56 102 109.0 1.2
30 2.77 11.65 102 114.1 1.7
40 4.72 19.84 102 122.3 2.5
WHERE:
FLOW SYSTEM FLOW, GPM
f 2.083(100/C)^1.852*Q/D^4.8655; FRICTION LOSS PER 100FT PIPE
Hf FRICTION HEAD= L*f/100
Hd ELEVATION HEAD AND EXISTING SEWER HEAD (FT)
TDH TOTAL DYNAMIC HEAD AT LIFT STATION (FT)
HP HORSEPOWER=Q(gpm)*TDH(ft)*(1min/60sec)*(8.34 lb/gal)/550
PUMP EFF 0.5 TYPICALLY 40 TO 60 PERCENT EFFICIENT

NORRIS and TUNSTALL SANITARY SEWER LIFT
' CONSULTING ENGINEERS, INC. STATION CALCULATIONS
JPROJECT: Coastal Mart#1 NT#: 20099
COUNTY: BRUNSWICK DATE: 7/7/2022
BOUYANCY CALCULATIONS
BT FT 0.03 WELL BASE THICKNESS
BE FT 0.25 BASE EXTENSION PAST WELL
BD FT 4.06 WELL BASE DIAMETER
LT COVER NEGLECTED FT 0.00 WELL TOP THICKNESS
CW COVER NEGLECTED FT 0.00 ACCESS COVER WIDTH
CL COVER NEGLECTED FT 0.00 ACCESS COVER LENGTH
WT FT 0.03 WELL WALL THICKNESS
VW CF 77.91 DRY WELL VOLUME
VB CF 0.39 FIBERGLASS BASE VOLUME
VL CF 0.00 LID VOLUME
VC CF 2.35 FIBERGLASS CYLINDER VOLUME
VTC CF 2.74 TOTAL FIBERGLASS BASIN VOLUME
FBGD LB/CF 3.04 FIBERGLASS DENSITY
WD LB/CF 62.40 WATER DENSITY
SD LB/CF 120.00 SOIL DENSITY DAMP SAND
C LB 8.34 CONCRETE WEIGHT
CD LB/CF 150.00 CONCRETE DENSITY
CCD FT 6.06 CONCRETE ANTIFLOATATION COLLAR DIAMETER
CCH FT 1.00 CONCRETE ANTIFLOATATION COLLAR HEIGHT
CCV CF 15.90 CONCRETE ANTIFLOATATION COLLAR VOLUME
CCW LB 2384.47 CONCRETE ANTIFLOATATION COLLAR WEIGHT
VS CF 82.66 SOIL VOLUME ON BALLAST RING
S LB 9919.39 SOIL WEIGHT ON BALLAST RING
TW LB 12303.86 TOTAL ANCHOR WEIGHT
B LB 5032.86 BOUYANT FORCE
P WEIGHT NEGLECTED LB 0.00 PUMP WEIGHT
FS 2.44 FACTOR OF SAFETY
OK! STABLE STRUCTURE

NORRIS and TUNSTALL SANITARY SEWER LIFT
CONSULTING ENGINEERS, INC. STATION CALCULATIONS
PROJECT: Coastal Mart#1 NT#: 20099
COUNTY: BRUNSWICK DATE: 7/7/2022
BRUNSWICK COUNTY STANDARD LIFT STATION DETAIL
ITEM ELEVATIONS
TOP ELEV. * 36.15
INFLUENT PIPE(INVERT) * 33.15
HIGH WATER ALARM* 32.65
START LAG PUMP* 32.65
START LEAD PUMP* 32.15
PUMP OFF* 31.95
BOTTOM OF WET WELL* 29.95
BOTTOM OF STATION SLAB* N/A
WET WELL DIAMETER* 4.00
PUMP REQUIREMENTS
DESIGN FLOW 22.0
DESIGN HEAD 109.0
REQUIRED FLOW 22
REQUIRED HEAD 107
VOLTAGE(TYPICAL MAY VARY DEPENDANT PUMP MFG) 240
PHASE(TYPICAL MAY VARY DEPENDANT PUMP MFG) 1
HORSEPOWER(CALCULATED REQUIRED HP) 1.09
RPM(TYPICAL MAY VARY DEPENDANT PUMP MFG) 3450
PREFERED PUMP STATION IS A BARNES OGRINDER PUMP DUPLEX STATION
PER 2T MANUAL 15A NCAC 02T.0305(h)(1)(C)
PROVIDE A PORTABLE POWER GENERATOR
THE PORTABLE POWER SOUCE MUST EITHER BE OWNED OR UNDER CONTRACT
AND BE COMPATIBLE WITH THE STATION IN THE EVENT OF A POWER OUTAGE.
A TRANSFER SWITCH MUST BE INCORPORATED INTO THE CONTROL PANEL FOR PROTABLE GENERATOR CONNECTION
AN AUTODAILER MSUT BE INSTALLED WITHIN THE CONTROL PANEL THAT WILL ALERT MANAGING AUTHORITY
IF POWER FAILURE OCCURS
* ENGINEER TO SPECIFY BASED ON LIFT STATION REQUIREMENTS
**DESIGN FLOW IS DETERMINED FROM THE CALCULATED CONDITIONS
*** REQUIRED FLOW& HEAD ARE SELECTED BASED ON DESIGN FLOW
****VOLTAGE REQUIREMENT(PREFERED 480 VOLTS, 1 PHASE)

Sanitary Sewer System Curves
200.00
150.00
—•—Barnes Pump Data
100.00
— System Requirements
50.00
•
0.00 -
0 5 10 15 20 25 30 35 40 45 50
Flow(gpm)

TDH Calcs
Coastal Mart #1
NT# 20099
DATE: 07-07-22
Elevation = 34—34 = 0 ft
Friction = 420 ft/ 100 ft * 1.05 ft =4.41 ft
Pressure = 102.41 ft
Proposed on = 26.54 ft
All on = 178.28 ft
Average = (26.54+ 178.28 ft)/2 = 102.41
TDH = 0+4.41 + 102.41 = 106.82 ft

COUNTY OF BRUNSWICK
ENGINEERING SERVICES
POST OFFICE BOX 249
75 COURTHOUSE DRIVE NE•BouVIA,NORTH CAROLiNA 28422
BUILDING I
TELEPHONE:[phone]
Fax:[phone]
WASTEWATER FORCE MAIN PRESSURE DETERMINATION
The Brunswick County Wastewater Force Main Model has been run to provide the estimated hydraulic grade line
elevations in the force main at the connection point provided by the Design Engineer. The hydraulic grade line data is
provided below.The estimated HGL data is based upon permitted flow in the main as of the date of the model run and any
flow from the proposed project previously submitted by the developer as noted below. The HGL data of the force main
may not include other projects currently under design and is subject to change as additional connections to this force main
are permitted. The Design Engineer is responsible for the design of the pump station associated with their project and
must account for the entire range of pressures possible in the force main.
HGL data is provided as a service to the Design Engineer and as an aid to the Design Engineer in the preparation of
design calculations for the pump station and force main associated with their project.The County assumes no liability for
the design of any pump station or force main associated with the project shown below. The Design Engineer is solely
responsible for the design of the pump station and force main for the referenced project.
Brunswick County reserves the right to require modifications to the pump station design and force main sizing after full
pump station and force main design calculations are submitted as a part of the project submittals.
PROJECT NAME: Shamrock Drive Pump Station ENGINEERING FIRM: Norris &Tunstall,P.C.
DESIGNER: John Phillip Norris,PE PROJECT DESIGN PUMP DISCHARGE(gpm): 42
(From Design Engineer)
EXISTING FORCE MAIN SI7E/TYPE: 12-inch PVC
CONNECTION POINT ELEV.USED IN MODEL: 36.0ft
PROPOSED CONNECTION LOCATION: Intersection of Shamrock Drive SW and Ocean Hwy W
PROPOSED STATION ONLY ALL PERMITTED PUMP STATIONS RUNNING
DISCHARGE HYDRAULICGRADE PRESSURE HEAD HYDRAULIC GRADE PRESSURE HEAD
LINE(GPM) (FEET) (FEET) (FEET) (FEET)
0 62.50 26.50 213.21 177.21
10 62.51 26.51 213.44 177.44
20 62.53 26.53 214.14 178.14
30 62.56 26.56 214.84 178.84
40 62.60 26.60 215.54 179.54
50 62.66 26.66 216.23 180.23
60 62.72 26.72 216.93 180.93
70 62.79 26.79 217.62 181.62
80 62.88 26.88 218.32 182.32
90 62.97 26.97 219.01 183.01
100 63.07 27.07 219.70 183.70
NOTES:
DATE: 02/27/2017
BY: MKC-KCP

-N'
, Fir
i
t
FL ER1E C�a»�ei•o�� •1 1>>� I�•���ilic 1)aki
a fiction of ater ew tee I pe on roue
(Based on Darcy's Formula)
_. 2 Inch
Standard wt steel-sch 40 Extra strong steel-sch 80 Schedule 160-steel
2.067"inside dia 1.939"inside dia 1.687"inside dia
Flow U S Head Head Head
gal Velocity Velocity loss Velocity Velocity loss Velocity Velocity loss
per ft per head ft per ft per head tt per II per head ft per
min sec ft 100 ft sec ft 100 ft sec ft 100 ft
5 .478 .004 .074 .54 00 .101 718 .008 ,197
6 .574 .005 .102 .65 .01 .139 861 012 .271
7 .669 .007 .134 .76 .01 .182 1.01 016. .357
i 8 .765 .009 .170 .87 .01 .231 1.15 020 .452
9 .860 .012 .209 .98 .01 .285 1.29 .026 .559
10 .956 .014 .252 1.09 .02 .343 1.44 .032 .675
12 1.15 .021 .349 1.30 03 .476 1.72 .046 .938
14 1.34 028 .461 1.52 .04 .629 2.01 .063 1.20
16 1.53 .036 .586 1.74 .05 .800 2.30 .082 1.53
18 1.72 .046 .725 1,96 06 .991 2.58 104 1.90
20 1.91 .057 .878 2.17 .07 1.16 2.87 .128 2.31
y 22 2.10 .069 1.05 2.39 .09 1.38 3.16 155 2.76
24 2.29 .082 1.18 2.61 .11 1.62 3.45 .184 3.25
26 2.49 .096 1.37 2.83 .14.12 188 3.73 4.02 .216 3.77 3.77
28 2.68 .111 1.57 3.042.16
30 2.87 .128 1.82 3.26 .17 2.46 4.31 .288 4.93
35 3.35 .174 2.38 3.80 .22. 3.281 5.02 .392 8.49
6.59
40 3.82 .227 3.06 4.35 .29
45 4.30 .288 3.82 4.89 .37 5.26 6.46 .648 10.6
50 4.78 .355 4.66 5.43 .46 6.42 7.18 .799 13.0
55 5.26 .430 5.58 5.98 .56 7.70 7.89 .967 15.6
60 5.74 .511 6.58 6.52 .66 9.09 8.61 1.15 18.4
65 6.21 .600 7.66 7.06 .77 10.59 9.33 1.35 21.5
70 6.69 .696 8.82 7.61 .90 12.2 10.05 1.57 24.8
75 7.17 .799 10.1 8.15 1.03 13.9 10.77 1.80 28.3
•
80 7.65 .909 11.4 8.69 1.17 15.8 11.48 2.05 32.1
85 8.13 1.03 12.8 9.03 1.27 17.7 12.20 2.31 36.1
90' 8.60 1.15 14.3 9.78 1.49 19.8 12.92 2.59 40.3
951,28 15.9 10.3 1.6 22.0 13.64 2.89 44.8
100 9.56 9.56 1.42 17.5 10.9 1.8 24.3 14.35 3.20 49.5
,
110 10.52 1.72 21.0 12.0 2.2 29.2 15.79 3.87 59.6
120 11.5 2.05 24.9 13.0 2.6 34.5 17.22 4.61 70.6
130 12.4 2.40 29.1 14.1 3.1 40.3 18.66 5.40 82.6
140 13.4 2.78 33.6 15.2 3.6 46.6 20.10 6.27 95.5
150 14.3 3.20 38.4 16.3 4.1 53.3 21.53 7.20 109
160 15.3 3.64 43.5 17.4 4.7 60.5 22.97 8.19 124
170 16.3 4.11 49.0 18.5 5.3 68.1 24.40 9.24 140
180 17.2 4.60 54.8 19.6 6.0 76.1 25.84 10.36 156
190 18.2 5.13 60.9 20.6 6.6 84.6 27.27 11.54 174
200 19.1 5.68 67.3 21.7 7.3 93.6 28.71 12.79 192
220 21.0 6.88 81.1 23.9 8.9 113
240 22.9 8.18 96.2 26.9 10.6 134
260 24.9 9.60 113 28.3 12.4 157
280 26.8 11.14 130 30.4 14.4 181
300 28.7 12.8 149 32.6 16.5 208
Note: No allowance has been made for age, difference
fromethne diameter,
er, or any riony abnorm the abnormal
condition
requirements inter or
surface. Any factor of safety must be estimated
Particular installation. It is recommended that for most commercial design purposes a safety factor of 15 o