NC0031836_Regional Office Historical File Pre 2018 (2)

a_LA.-
DIVISION OF WATER QUALITY
February 17, 2006
Memo To: Seth Robertson, Project Review Engineer
Construction Grants Loans Section
From: Rex Gleason l . (�
Prepared By: Michael Parker W'
Subject: City of Statesville Fourth Creek WWTP Belt Filter Press
Authorization to Construct
NPDES Permit No. NC0031386
Iredell County
As requested by the memo received in this Office on February 15, 2006 from Mr. Mark
Hubbard, P.E., Construction Grants and Loans, this Office has reviewed the subject
Authorization to Construct request submitted by the City of Statesville (the City) and offers the
following comments and/or recommendations.
The City has requested authorization to construct a new 2.0 meter belt filter press and
related appurtenances (sludge feed pumps, polymer feed systems, and a new sludge cake pump)
at the subject facility. The new belt filter press is being installed to replace an existing plate and
frame press that has reached the end of its life and is beyond ecnomic repair. The new belt filter
press will also allow for the City to keep up with its sludge production in a 40-hour work week
vs the 2-shifts currently necessary with the existing plate and frame unit.
This Office has no objections to the approval of the City's request pending final technical
review and approval by the Construction Grants and Loans Section.
If you have any questions, please advise.
/mlp
h:\atc\atc06\4thcreek.atc

fie.W A iz;, `` Michael F.Easley,Governor
�0 G Q` William G.Ross Jr.,Secretary
rNorth Carolina Department of Environment and Natural Resources
_ 7.71
p ��
Alan W.Klimek,P.E.Director
n Division of Water Quality
February 10, 2006
MEMORANDUM Kt.` ;Ltr�
MOO"` :- 'AL OFFICE
TO: Rex Gleason, Regional Water Quality Supervisor
Mooresville Regional Office, Division of Water Quality
I✓ FROM: mark Hubbard P.E. FEB 1 5 2006
Design Management Unit
SUBJECT: Request for an Authorization to Construct
Statesville, Fourth Creek WWTP Sludge Improvements
NPDES Permit No. NC0031836 a
Plans, specifications and supporting documents have been received for the subject
project. It is requested that comments and recommendations, including the items listed below,
be received by March 10, 2006 from the Regional Office Staff:
Procedure No. 4 Comments
Schedule for Issuance of the NPDES Permit
SOC, or Other Schedules Which Must be Met
Status of Stormwater Permit, if applicable
Confirm if the Proposed Method and Sequence for Construction of
Additions/New Facilities is Acceptable.
Groundwater Comments
Standby Power Needs
Compliance With N. C. Well Construction Standards
CAMA
X Recommendations for inclusion in the Authorization to Construct
For your reference, review and comments on the above items, plan documents are submitted as follows:
X Plans and Specifications
Subsurface/Soils Report
Power Outage Information
Other
If you have any questions, please do not hesitate to contact Seth Robertson at [phone].
Attachment
MH
cc: ATC Files
Mark Hubbard
Construction Grants and Loans Section
1633 Mail Service Center Raleigh NC 27699-1633 NOne hCat'olina
Phone:[phone]/FAX:[phone]/Internet:www.nccgl.net
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper Aaturally

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DESIGN CALCULATIONS
DEWATERING FACILITY IMPROVEMENTS
FOURTH CREEK WASTEWATER TREATMENT PLANT
CITY OF STATESVILLE, NORTH CAROLINA
MICHAEL S. APKE, P.E.
,,.,••�';0�CARP!
EMcGill
ASSOCIATES SEAL I S /
27394
Engineering • Planning • Finance •,c/yq � :P.••'
Post Office Box 1136 ,, '•,,,,,,,,,,,,,,,,,•�`
Hickory, North Carolina 28603
FEBRUARY 2006 w"' 'OF ENVIRON
AND NATO"'"_'"7 tr
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MOORS . :41.
03736 r. .-A
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WATER+4 ii`SE

Introduction
The City of Statesville's existing Fourth Creek Wastewater Treatment Plant has a design
capacity of 6.0 million gallons per day (MGD), and currently uses a plate and frame press
to dewater waste activated sludge. The plate and frame press has surpassed its useful
lifespan, is beyond economic repair and is in need of replacement. The proposed project
will replace the existing plate and frame press with a new 2.0 meter belt filter press and
related appurtenances including sludge feed pumps, polymer feed system, and a new
progressive cavity sludge cake pump.
Sludge Production
According to City records, the Fourth Creek WWTP produced 460 dry tons of sludge in
2002 at an average daily flow of 2.6 MGD. This equates to 0.97 dry lbs/1000 gal.
City records also indicate that the Fourth Creek WWTP produced 551 dry tons of sludge
in 2003 at an average daily flow of 3.2 MGD. This equates to 0.94 dry lbs/1000 gal.
Table 12-7 in Metcalf and Eddy states that typical sludge production for extended
aeration facilities falls within the range of 0.7 to 1.0 dry lbs. per 1,000 gallons. The
Fourth Creek WWTP therefore falls within this theoretical range.
Based on test data provided by the Ashbrook Corporation in May 2004, the solids content
of the sludge in the plant's existing aerobic digester was 1.6%. Assuming a specific
gravity in the sludge of 1.015 (per Metcalf and Eddy), the daily gallons of sludge
produced in 2003 was
551 dry tons per year * 2,000/365 = 3,019 dry lbs per day
3,019 dry lbs/(8.34 lbs/gal water * 1.015 * 0.016) = 22,290 2pd
Using 1.0 dry lb. per 1,000 gallons, estimated sludge production at 6.0 MGD would be:
6.0 x 106 gpd * 1 lb/ 1000 gal = 6,000 lbs dry solids per day
6,000 dry lbs/(8.34 lbs/gal water * 1.015 * 0.016) = 44,300 2pd
Belt Filter Press Sizing
Due to the inefficiency of the existing plate and frame press, the City is currently
operating two (2) shifts per day to keep up with current sludge production. The City
wants to size the new belt filter press to allow current and future sludge production to be
processed in less than 40 hours per week.
Determine hydraulic loading_
Based on the sludge sample analysis performed by the Ashbrook Corporation in May
2004, it was determined that an Ashbrook 3-Belt Klampress could be fed at a maximum
Fourth Creek WWTP Dewatering Facility Calculations—Page 1

feed rate of 140 gallons per minute (GPM) per meter (see attached report). Therefore, a
2.0 meter press could be fed at a maximum rate of 280 GPM.
At current flows,
22,290 gpd * 7 days per week= 156,030 gallons per week
156,030 gallons per week/280 gpm= 557 minutes per week or 9.3 hours per week
r
At future flows,
44,300 gpd * 7 days per week= 310,100 gallons per week
310,100 gallons per week/280 gpm= 1,108 minutes per week or 18.5 hours per week
Determine solids loading:
Ashbrook report also concludes that an Ashbrook 3-Belt Klampress could be fed at a
maximum feed rate of 1,120 dry pounds per hour per meter. Therefore, a 2.0 meter press
could be fed at a maximum rate of 2,240 dry pounds per hour.
At current flows,
3,019 dry pounds per day * 7 days per week=21,133 dry pounds per week
21,133 dry pounds per week/2,240 pounds per hour=9.4 hours per week
At future flows, .
6,000 dry pounds per day * 7 days per week=42,000 dry pounds per week
42,000 dry pounds per week/2,240 pounds per hour= 18.8 hours per week
Therefore, a 2.0 meter press will be adequate to process sludge at both current and future
production. Sludge feed pumps will include variable speed drives to allow plant
operators to feed the press at different rates based on production.
.
44
Fourth Creek WWTP Dewatering Facility Calculations—Page 2

1/002 [6T2.6 ON XWL/X,L] Bt:ZT NOW tOOZ/LT/S0
f I , t
ASHBROOK LABORATORY REPORT
Ashbniok
OPTIMIZED PROCESS RESULTS
CLIENT 4th Street WWTP DATE 5/13/04 �� w
LOCATION Statesville, NC BELT 8060
»»»»»»»»»»»»»»» »»»»»»»»»»»»»»»»>>
RAW SLUDGE ANALYSIS
SLUDGE TYPE: GBT-WAS
pH: 6.7 Volatile Content (%) 74.7
Temp (F) 70.0 Feed Solids (%) 1.60
Ash Content(%) 25.3
RESULTS
3 belt
dewatering equipment: (X)KP ( )Ext KP ( )WP ( )WPHS ( )AB
hydraulic loading(gpm/m) 140 belt speed(m/min) 3.0
solids loading(Ib/hr/m) 1120 belt tension(pli) 30
cake solids 18-19 solids capture(%) >95
polymer/flocculant description Zetaci 7848 (Cat, Emul)
polymer/flocculant required(Ibs/ton) 25-30
polymer/flocculant cost($/ton) 25-30
polymer flow(gpm, %soln) 9.1. 0.30%
NOTES Increax. 4o 0.510 pet Ask`/ook.
W ortalS tatesvilleNGKP/13Mav04

S1ud2e Feed Pumps
Velocity in Force Main
The plate and frame press is currently fed by two (2) rotary lobe pumps with variable
speed inverters that pump sludge through an existing 6-inch force main. The pumps have
exceeded their useful life, and are proposed to be replaced on this project with new rotary
lobe sludge feed pumps. It is proposed to pump sludge from the aerobic digester using
new rotary lobe pumps through the existing 6-inch force main, and modify the existing
piping as necessary. Verify velocity and head loss in the force main.
A6_inch=It(6-inch/12 inch/foot)2/4
A6-inch =0.196 ft2
V = Q/A6_inch= 280 gpm/7.48 ft3/gal/0.196 ft2
Qmin = 191 fpm=3.18 feet per second
The maximum pumping rate of 280 GPM exceeds 2 feet per second in the 6-inch force
main, therefore the 6-inch force main should be adequate.
Calculate Head Loss
The system characteristics are as follows:
Length of Force Main: 250 feet Force Main High point Elevation: 788.0 feet
Diameter of Force Main: 6 inches LWL in Digester: 760.0 feet
Hazen& Williams "C Factor": Use 120 for DIP
The total dynamic system head for a give flow rate can be calculated as:
TDH Q=Head static +Head friction+ Head minor
Head static , the Static Head seen at the pump location is:
Head static = 788.0 feet (High Point Elevation)—760.0 feet(Pump On Elevation)
Head static=28.0 feet
The friction loss in the 6-inch force main can be represented as:
Head friction= 10.44 Q'•4 L
•
C D .
Fourth Creek WWTP Dewatering Facility Calculations—Page 4
]Llif

.
For L in feet, Q in GPM, and D in inches
For 280 GPM,
Head friction = 10.44 2801.85 250
1201.85 64.87
Head friction=2.0 feet
The minor losses due to valves and fittings can be represented as:
Head L= K V2/2g
The following valves and fittings, and associated K values, are included in the flow path
of the piping system with one pump running:
Fitting Quantity K Value* Quantity X K
6-Inch Gate Valve 2 0.2 0.4
6-Inch 90 degree Bend 9 0.3 2.7
Tee— Line Flow 1 0.2 0.2
Check Valve 1 2.5 2.5
Sum of K 5.8 •
*See attached chart for"K"values
At 280 GPM (0.624CFS), the velocity of flow in the 6-inch force main is:
V = Q/A
V= .624 CFS /7c/4 x (6/12)2
V=3.18 fps
Therefore,
Head L= 5.8 x 3.182/2(32.2)
b k._
Head L=0.9 feet
f^'
For sludge conditioning, the 6-inch line is also proposed to include a polymer mixing
valve to mix polymer with the sludge prior to the belt filter press. According to
,. Ashbrook, the head loss across the valve is typically between 25 and 30 psi. Design
system for 30 psi pressure drop across the valve.
30 psi = 69.3 feet
•
Total TDH @ 280 GPM= 28.0 +2.0 +0.9 + 69.3 = 100.2 feet
Fourth Creek WWTP Dewatering Facility Calculations—Page 5

S..
TDH @ 280 GPM= 100.2 feet '4k,
The attached spreadsheet and system curve have also been developed for this pumping
application. �.
Since pumps will have variable frequency drives, size pump for additional capacity and a
more conservative selection of 300 GPM at 101' TDH. Select Swaby Lobeline Model
ilfMR135 pump for this application. According to the manufacturer's representative, the #x
' pump can be installed as a direct replacement to the existing rotary lobe pumps in use at a::
Flov the plant. Provide 20 HP motors on new rotary lobe pumps.
,.,2 a,, See attached curve for Swaby Model MR135.
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A ,.. Fourth Creek WWTP Dewatering Facility Calculations—Page 6 _ R

304 DESIGN, CONSTRUCTION OF SANITARY, STORM SEWERS •
wAST
TABLE XXXIII.—ApproJLmste Values of Resistance Coefficient, K, for Valve, should be ma
And Fitting. more.accurat
manufacture:
Typo of Yittiar coecttnt,a The procet
Stsndard elbow • 020 and fittings
Long radius elbow 020 Another prod
45-deg elbow 020 cient where 1•
90-deg bends in flumes Is° dynamic heat
Teem: literature for
Straight through 0.50 lent length in
Branch to line 0
Line to branch 0.80 with the part
' Entrance: • a:c added to
Inward projecting 073 mined concur
Sharp cornered 050 In the &nil
Bellmouth 004, changes in to
Gate valves- • 020
Check valves: • time. It has l
Swing 2.50 tary sewage f
Tilting desk 024 of the type of
Butterfly valve • 020 condition, th
140. In area:
customary to
consideration
pipe sizes, as
P o.e ful operation
. the possible t
_ p•/4- pipe line dun
1 0•7 l detailed discs
Z Z _ When a sy
•
./.:
0.6 pumps will d
6, it is normal I
superimpose(
0. L os / - considered. '.
'1 - '' ' desired static
77 k — —I I i static head a
0.4 — 4 rate. Since t
> •
D v it,—.- D2 -
two systcrn h
C ' ` 1 _ head) and of
. °� —t additional s'
b,Owl •
L factors. Onl,
I I I • normally are
•O o� 02 vides a modi-
• — • (including st
0.1
individual TN
• - on the flown:
• The indivi
o -- However,tht
0 0.1 02 0.3 0.{ 0.5 0.6
pl system curv(
Ratio 2 = ,
r the suction
FIGURE 88.--Values of K for 413e with Equation
,'_ I/ - ./1 - Itf _ 9 ' '' ) c9- 0 40 ' .
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•

1
SYSTEM CURVE CALCULATIONS
ROTARY LOBE SLUDGE FEED PUMPS TO BELT FILTER PRESS
FOURTH CREEK WASTEWATER TREATMENT PLANT
CITY OF STATESVILLE,NORTH CAROLINA
Line Size 6 Inches
C Factor 120
Flow Flow Area Velocity L Eq.L. Total L Pipe HL
(GPM) (CFS) (FPS) (FT) f) (FT) (FT)
0 0 0.196 0.00 250 123 373 0.0
50 0.11 0.196 0.57 250 123 373 0.1
100 0.22 0.196 1.13 250 123 373 0.5
150 0.33 0.196 1.70 250 123 373 1.0
200 0.45 0.196 2.27 250 123 373 1.6
250 0.56 0.196 2.84 250 123 373 2.5
280 0.62 0.196 3.18 250 _ 123 373 3.0
300 0.67 0.196 3.40 250 123 373 3.4
Total Head Loss
FLOW 6-inch Static In-Line
(GPM) Line Head Mixer Total HL
0 0.0 28.0 69.3 97.3
50 0.1 28.0 69.3 97.4
100 0.5 28.0 69.3 97.8
150 1.0 28.0 69.3 98.3
200 1.6 28.0 69.3 98.9
250 2.5 28.0 69.3 99.8
280 3.0 28.0 69.3 100.3
300 3.4 28.0 69.3 100.7
Design Point=300 GPM @ 101 Feet TDH
c
•
1.'1,7 A
c1-

Fourth Creek WWTP Sludge Feed Pumps
101.0
100.5
100.0 —
99.5
u. 99.0 -
2
98.5
98.0
97.5
97.0
0 50 100 150 200 250 300 350
Flow(GPM)

•
SIZE: 135 1
SWABYIoheIrneTM ROTORS= URETHANE TRILOBE
PRESSURE: 75 PSI
LOBE PUMP TEMP: 158 Deg. F. ,
PERFORMANCE CURVE
HP KW POWER ABSORBED
I
40 30 "SI
35 I I 1 I I I J 1 I ,I Eli 1 I 75 I Test Medium
30 I t
f 1 co
25 20 it
I - I I I I I ' . I 1 1 60 I Displacement
1 I I r I „ Al 1 I I 45 I USgpm/100 rev.
20 11111111111111111111111111111 D P" iP� 13s
15 I I 3 0 1
— `10— .1J1 iIi—Li I 271 , iII I Port Size :
I I I I I I ®ppiplr ! l „ 1 15 6 incries
5 _I ,I�1��� � � I 1Illgr
' —h III I 11111111 ' I I 11111
sGPM M3/H CAPACITY 700
160
I1 I iII � I II I I ►_ II I "oI1
140
650 III 1 i 1 1
II I I I
i1I IIII IIIIII W IIIIII ' II III II111 I III IL 15 I
600 l II
I I III I II IIII II � I
III I II ,I
30
45
550 II 1 120 i I I I I I ( 1 _ I I i lil � ', 75
500 i1IHIl { I i1 � .' � I I 1
1 1/
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r i
450 100 willI IIIII IIIIIIII . I 1 I
400 1 1 1 ( I I I I
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350 80 ' Hill I III III I I i
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250 I I I I
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40
150 I I /I� _
100 l I � _ . If ,
20 I / I I _
5 0 I /� I Y
Speed +/- 10 RPM 100 200 300 400 500
IDOC NO: 73-110-135-02

Polymer Feed System
According to Ashbrook report, polymer required for belt filter press = 25-30 lbs per dry
ton of sludge. At 6 MGD, plant will produce 1,095 dry tons of sludge per year.
1,095 dry tons per year= 21 dry tons per week
21 dry tons per week X 30 lbs of polymer per dry ton = 630 pounds of neat polymer per
week
630 pounds per week=gallons per week X 8.34
= 75 gallons of neat polymer per week, or 4.0 gallons per hour (assuming operating time
of 18.8 hours per week)
Enpro HyBlend Model H-15P-4800-C will deliver 1.5 to 15 GPH of neat polymer
Ashbrook recommends polymer dilution between 0.3% and 0.5% solution
At 0.5%,
630 pounds per week= gallons per week X 8.34 X 0.5/100
= 15,108 gallons per week of polymer solution at 0.5% solution
Provide polymer feed system with polymer mixing chamber, neat polymer metering
pump with capacity of 4.0 GPH, dilution water assembly, and polymer storage tank with
storage capacity of 1,000 gallons.
Fourth Creek WWTP Dewatering Facility Calculations—Page 11

Sludge Cake and Filtrate Calculation
Calculate filtrate flow rate and sludge cake flow rate per Metcalf& Eddy, page 867.
Equation 1:
Solids in Sludge Feed = Solids in Sludge Cake+ Solids in Filtrate
S = Sludge Cake Flow Rate
F =Filtrate Flow Rate
Solids in sludge feed= 2,240 pounds per hour(previously calculated)
Assumptions:
Sludge cake = 18% solids (per Ashbrook report)
Specific Gravity of sludge cake= 1.07 (per M&E)
Specific Gravity of filtrate= 1.01 (per M&E)
Solids in Filtrate= 0.09% (per M&E)
Therefore,
2,240 lb/hr= S(8.34)(1.07)(0.18) + F(8.34)(1.01)(0.0009)
2,240 lb/hr= 1.61(S)+ 0.0076(F)
Equation 2:
Sludge Flow Rate+ Washwater rate= Sludge Cake Flow Rate+ Filtrate Flow Rate
Sludge Flow Rate=2,240 lb/hr/(8.34*1.015*0.016) = 16,538 gal per hour(276 gpm)
Washwater Rate= 120 gallons per minute (per Ashbrook)= 7,200 gal per hour
Therefore,
16,538 gph+ 7,200 gph=F + S
Solving both equations simultaneously yields:
2,240 = 1.61 (S) + 0.0076(23,738 —S)
2,240 = 1.61 (S) + 180—0.0076(S)
2,060 = 1.602 (S)
S = 1,286 gallons per hour=21.4 GPM
Solving For F yields,
16,538 gph+ 7,200 gph=F + 1,286 gph
F =22,452 gph=374.2 GPM
Fourth Creek WWTP Dewatering Facility Calculations—Page 12

Sludge Cake Pump Calculations
It is proposed to pump the sludge cake generated by the belt filter press using a new
progressive cavity sludge cake pump. The pump will transfer sludge cake from the
discharge of the belt press to an existing reversible conveyor, that can be used to deliver
sludge to the Class A N-Viro process or load onto a truck as Class B sludge.
The pump shall also be sized so that in the future, a polymer injection ring can be added
to reduce friction, and the pump can transfer sludge directly to the existing covered
storage "bunkers" where the sludge can be stored on-site as Class "B" sludge and land
applied through the City's existing contract with Synagro. This will eliminate the need to
truck the Class B sludge to the bunkers as is currently done.
Previous calculations indicate that the pump will need to be capable of pumping up to
21.4 GPM of sludge cake. To be conservative, increase to 23 GPM for design purposes.
According to Moyno (sludge cake pump manufacturer), the sludge cake needs to be
pumped at a rate of less than 0.3 feet per second through existing piping to be effective.
It is proposed to pump through 6-inch piping.
A6_inch=7r(6-inch/12 inch/foot)2/4
A6-inch= 0.196 ft2
V = Q/A6_inch =23 gpm/7.48 ft3/gal/0.196 ft2
Qmin = 15.9 fpm=0.26 feet per second
Current Conditions—Pump to Existing Reversing Sludge Conveyor
Based on empirical test data provided by Moyno for sludge cake flow through closed
conduits, it is estimated that the system will endure approximately 2.07 psi per foot of
head loss in 6-inch piping. Also according to Moyno, each long radius 90° bend has an
equivalent length of approximately two (2) feet.
The system characteristics are as follows:
Length of Force Main: 103 feet
Static Head Between Pump and Discharge Location: 10 feet=4.3 psi
# of long radius 90°bends= 5 (10 feet of equivalent length)
(113 feet X 2.07 psi) +4.3 psi = 238.2 psi (say 240 psi)
Moyno recommends a model G4-36 HS System for this application.
Fourth Creek WWTP Dewatering Facility Calculations—Page 13

Future Conditions—Pump to Covered Sludge Bunkers
In the future, it is proposed to add additional piping to pump the sludge cake to either the
reversing sludge conveyor, or to the City's existing covered sludge storage bunkers. The
bunkers are located further from the sludge cake pump than the reversing conveyor.
Based on discussions with Moyno, a polymer feed system and injection ring would be
necessary for the model G4-36 HS System to pump to the existing sludge bunkers.
Laboratory testing indicates that the polymer barrier reduces the pipe losses to
approximately 0.98 psi per foot.
Therefore, the future system characteristics are as follows:
Length of Force Main: 200 feet
Static Head Between Pump and Discharge Location: 0 feet
# of long radius 90°bends = 7 (14 feet of equivalent length)
(214 feet X 0.98 psi) + 0 psi=210 psi
The G4-36 HS System will work for the future application if the polymer feed system
and injection ring is added to the project. Provide a spool piece for a future polymer ring
connection.
•
Fourth Creek WWTP Dewatering Facility Calculations—Page 14
I I11

QF W A 7F9 Michael F.Easley,Governor
Q
t 'Mi►OEPT.OF ENVIli
G � ,nrf Ross Jr.,Secretary
� t � ����{ �II tn►� I
f%J North nd" `b� ttiht nt'of`Envt Natural Resources
-71 )// OFFICE
.� Alan W.Klimek,P.E.Director
Division of Water Quality
March 7, 2006
MAR 1 3 2006
Mr. Joe Hudson, Director of Water Resources
City of Statesville
PO Box 1111
Statesville, North Carolina 28687 WATER �� ION
SUBJECT: Request for Additional Information
City of Statesville
Fourth Creek Wastewater Treatment Plant
Dewatering Facility Improvements
ATC No. 031836A03
Iredell County
Dear Mr. Hudson:
A review of the plans and specifications in support of the request for Authorization to
Construct has been completed by the Construction Grants and Loans Section (CG&L). The
comments resulting from this review are being transmitted directly to your engineer for
clarification and resolution; a copy is attached for your reference. Our goal is to issue the
Authorization to Construct as soon as possible. If a complete response is not received within 30
days, the application and supporting information will be returned.
Upon receipt of satisfactory responses from your engineer to our comments, the review of
the plan documents will be completed. If you have any questions concerning this matter, please
do not hesitate to contact Seth Robertson, P.E., State Project Review Engineer, at
[phone].
Sincerely i
2., 1)- -///1/
Cecil 6. Maddn,fir., P.E., Supervisor
Construction Grants and Loans Section
Design Management Unit
BSR/dr
Attachment to all
cc: Michael S. Aske, P.E. - McGill Associates
Daniel Blaisdell, P.E.
Cecil G. Madden, Jr., P.E.
Mark Hubbard, P.E.
Seth Robertson, P.E., ATC Files
Construction Grants and Loans Section One
1633 Mail Service Center Raleigh NC 27699-1633 NOrthCarolina
Phone:[phone]/FAX:[phone]/Internet:www.nccgl.net
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper Naturally

Construction Grants & Loans Section
Design Management Unit
City of Statesville
Fourth Creek Wastewater Treatment Plant
Dewatering Facility Improvements
ATC No. 031836A03
Request for Additional Information
General Comments
1. Complete and submit the Plans and Submittal Checklist, along with any required items not
included in your original submittal. The checklist and its guidance are found at the following
site: http://www.nccgl.net/fap/plans.html
2. Confirm that the existing dewatering facility foundation can support the weight of the
proposed equipment.
Review of Calculations
1. The sludge press calculations presented on Page 2 state that a 2.0-meter press can handle a
maximum hydraulic feed rate of 280 gallons per minute (GPM). However, the sludge feed
pump calculations specify a 300 GPM pump, or 20 GPM greater than the hydraulic capacity
of the sludge press. Resolve this conflict.
Review of Plans
1. General construction note No. 4, as shown on Sheet G2, states that an Alternate Bid No.2 for
supply of a 2.0-meter 3-belt Klampress by Ashbrook is required in addition to pre-approved
manufactures included in the base bid. NCGS 133-3 states that "...Specifications may list
one or more preferred brands as an alternate to the base bid in limited circumstances.
Specifications containing a preferred brand alternate under this section must identify the
performance standards that support the preference. Performance standards for the preference
must be approved in advance by the owner in an open meeting. Any alternate approved by
the owner shall be approved only where (i) the preferred alternate will provide cost savings,
maintain or improve the functioning of any process or system affected by the preferred item
or items, or both, and (ii) a justification identifying these criteria is made available in writing
to the public...". Confirm that the requirements of NCGS 133-3 have been met.
2. A note on Sheet E7 references an electrical drawing for control building HVAC
requirements. Provide complete electrical and control drawings and specifications for all
work included as part of the project.

.7'w...7 µme„ -fs
Review of Specifications
1. If estimated project construction costs exceed $300,000, then you must provide formal
front-end bid documents. Additionally, you must provide the minority business forms, the
guidelines for minority business forms, and dispute resolution based on mediation. These
documents can be found at the following web site: http://www.nccgl.net/fap/plans.html
2. The specifications refer to water supply piping components and appurtenances, and include
two sections (02050 and 02640) that detail this work. However, no water piping is shown on
., the project plans. Resolve this conflict.
1,
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QF wATFi4O Michael F.Easley,Governor
0 G William G.Ross Jr.,Secretary
North Carolina I i jpOrnENb j,4 thloural Resources
> i
AN
`.M Alan W.Klimek,P.E. Director
pA Division of Water Quality
February 10, 2006
FEB 1 5 2006
Mr. Joe Hudson, Director of Water Resources
City of Statesville
P.O. Box 1111 VAR Y� , SEPT1ON
Statesville, North Carolina 28687
SUBJECT: Acknowledgement of Request for
Authorization to Construct
City of Statesville
Fourth Creek WWTP
NPDES Permit No. NC0031836
Dear Mr. Byerly:
The Construction Grants and Loans Section received your request for an Authorization to
Construct and the supporting documentation on February 10, 2006. We will notify you and your
engineer upon completion of our review.
If you have any questions concerning this matter, please contact me at [phone], or
Mr. Cecil G. Madden, Jr., P.E. at [phone].
Sincerely,
/V/
Cecil G. Madden, Jr., P.E., Supervisor
Construction Grants and Loans Section
Design Management Unit
MH/dr
cc: Michael Apke, P.E. — McGill Associates
Jerry Byerly, Assistant Director of Water Resources, City of Statesville
Water Quality Central Files
Mark Hubbard, P.E.
ATC Files
Construction Grants and Loans Section One
1633 Mail Service Center Raleigh NC 27699-1633 NOrthCarolina
Phone:[phone]/FAX:[phone]/Internet:www.nccgl.net
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper Naturally

aQ�W"A T�9pG Michael F.Easley.Governor
(7.; William G.Ross Jr..Secretary
r North Carolina Department of Environment and Natural Resources
C Y Alan W.Klimek,P.E.Director
Division of Water Quality
ANT)NATURAL RESOURCES
August 7, 2006 MOORESV? l "; .^!AL OFFICE
It
Mr. Joe Hudson, Director of Water Resources l'
City of Statesville AUG 1 0 2006
PO Box 1111
Statesville, North Carolina 28687
SUBJECT: City of Statesville WATER SECTION
Fourth Creek WWTP
A to C No. 031836A03
Transmittal of Approved Plans and Specifications
Dear Mr. Hudson:
Enclosed is a copy of the plans and specifications, which were approved on
May 31, 2006. The subject documents have been stamped "approved" for your records. A copy
is also being forwarded to your engineer and to the Mooresville Regional Office. The Permittee
should retain these documents for the life of the facility.
Should you have questions regarding this matter, call me at [phone].
Sincerely,
c F.a c
Cecil G. Madden, Jr., P.E.
Supervisor
Design Management Unit
BSR: cgm
Enclosures
cc: Michael Apke. P.E., McGill Associates
NITOWQ Moores
Daniel Blaisdell, P.E.
Cecil G. Madden, Jr., P.E.
Seth Robertson, P.E.
ATC File
Construction Grants and Loans Section One
1633 Mail Service Center Raleigh NC 27699.1633 NOrthCarolina Phone:[phone]/FAX:[phone]/Internet:www.nccgl.net
kik An Equal Opportunity/Affirmative Action Employer—50%Recycled:10%Post Consumer Paper Naturally

Vy ATF Michael F.Easley,Governor
V
=,_G William G.Ross Jr.,Secretary
North Carolina Department of Environment and Natural Resources
Alan W.Klimek,P.E.Director
Division of Water Quality
October 17, 2005 RECEIV-n
N fl Dept - >>n
OCT 1 9 2005
Mr. Joe Hudson, Director of Water Resources
Winston-Salem
City of Statesville Regional Office
P.O. Box 1111
Statesville, North Carolina 28687
SUBJECT: Authorization to Construct
A to C No. 031836A02
City of Statesville
Fourth Creek WWTP
Iredell County
Dear Mr. Hudson:
A letter of request for Authorization to Construct was received on September 6, 2005,by
the Division, and final plans and specifications for the subject project have been reviewed and
found to be satisfactory. Authorization is hereby granted for the construction of modifications to
the existing 4.0 MGD (permitted flow 6.0 MGD) Fourth Creek Wastewater Treatment Plant,
with discharge of treated wastewater into the Fourth Creek in the Yadkin Pee-Dee River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Two new 20 horsepower RAS pumps rated at 2800 GPM with variable
frequency drive and 2 new WAS pumps rated at 1,400 GPM, a new wet
well, replacement of weirs and baffles in two (2) existing clarifiers, all
related piping, valves, demolition, electrical work, and associated
appurtenances, in conformity with the project plan, specifications, and
other supporting data subsequently filed and approved by the Department
of Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0031836 issued August 20, 2004, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0031836.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as max
NNehCarolina
aturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh,NC 27699-1617 Phone[phone] Customer Service
Internet: h2o.enr.state.nc.us 512 N.Salisbury St. Raleigh,NC 27604 FAX [phone] 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper
I

Mr. Joe Hudson, Director of Water Resources
October 17, 2005
Page 2
be required by this Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number(336) 771-4600, shall be notified
at least forty-eight (48)hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to Cecil G. Madden, Jr., P.E.,
Construction Grants & Loans, DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-
1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the Permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and, when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.

•
rPrMr.
Joe Hudson, Director of Water Resources
October 17, 2005
Page 3
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal)which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Cecil G. Madden, Jr., P.E. at
telephone number(919) 715-6203.
Sincerel ,
1;Y—----"://:—
Ian W. Klimek, P.E.
ID:cgm
cc: Mike Apke, P.E., McGill Associates, Hickory
Iredell County Health Department
iiilAalibiasitan:Salel
Technical Assistance and Certification Unit
Daniel Blaisdell, P.E.
Point Source Branch, NPDES Program
Cecil G. Madden, Jr., P.E.
Ishwar Devkota, P.E.
A to C File

City of Statesville
A To C No. 031836A02
Issued October 17, 2005
Engineer's Certification
I, , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the construction of the modifications and improvements to the Fourth Creek WWTP, located on
Statesville in Iredell County for the City of Statesville, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:
Two new 20 horsepower RAS pumps rated at 2800 GPM with variable
frequency drive and 2 new WAS pumps rated at 1,400 GPM, a new wet
well, replacement of weirs and baffles in two (2) existing clarifiers, all
related piping, valves, demolition, electrical work, and associated
appurtenances, in conformity with the project plan, specifications, and
other supporting data subsequently filed and approved by the Department
of Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.
Date
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

IW th--
DIVISION OF WATER QUALITY
September 19, 2005
Memo To: Ishwar Devkota, Project Review Engineer
Construction Grants and Loans Section
From: Rex Gleason 1-
-FPPrepared By: Michael Parker
Subject: City of Statesville Fourth Creek WWTP Sludge Pumps
Authorization to Construct
NPDES Permit No. NC0031386
Iredell County
As requested by the memo received in this Office on September 8, 2005 from Mr. Mark
Hubbard,P.E., Construction Grants and Loans, this Office has reviewed the subject
Authorization to Construct submitted by the City of Statesville (the City) and offers the
following comments and/or recommendations.
The City has requested authorization to install new return sludge and waste sludge pumps
in the existing return sludge pump station at the subject WWTP. Also included in this request is
the replacement of the weirs and baffles in the plant's secondary clarifiers. During the
replacement of the clarifier's weirs and baffles, each of the clarifiers will be taken out of service
and then returned to service separately in order to minimize plant operational disruption.
This Office has no objections to the approval of the City's request pending final technical
review and approval by the Construction Grants and Loans Section.
If you have any questions,please advise.
./mlp
h:\atc\atc05k4thcreekatc

IFIFF:\NAT F9 / } Michael F.Easley,Governor
f (3 ( William G.Ross Jr..Secretary
Q 1 Q r North Carolina Department of Environment and Natural Resources
'
.� 1\/ Alan W.Klimek,P.E.Director
�n Division of Water Quality
September 6, 2005 'a '_' 0 ,.....�.�,..�"EN►
9 f, :� :3URCES
MEMORANDUM � ^�'�liA03 :4• AI.OFFICE
•
TO: Rex Gleason, Regional Water Quality Supervisor
Mooreseville Regional Office, Division of Water Quality
SEP 0 8 200:i
FROM: "Mark Hubbard P.E.
Design Management Unit
SUBJECT: Request for an Authorization to Construct
WAIF
City of Statesville Fourth Creek WTP Sludge Pumps W .�� . �:; 6LJ.td
NPDES Permit No.NC0031836
Plans, specifications and supporting documents have been received for the subject
project. It is requested that comments and recommendations, including the items listed below,
be received by October 6, 2005 from the Regional Office Staff:
Procedure No. 4 Comments
Schedule for Issuance of the NPDES Permit
SOC, or Other Schedules Which Must be Met
Status of Stormwater Permit, if applicable
Confirm if the Proposed Method and Sequence for Construction of
Additions/New Facilities is Acceptable.
Groundwater Comments
Standby Power Needs
Compliance With N. C. Well Construction Standards
CAMA
X Recommendations for inclusion in the Authorization to Construct
For your reference,review and comments on the above items, plan documents are submitted as follows:
X Plans and Specifications
Subsurface/Soils Report
Power Outage Information
Other
If you have any questions,please do not hesitate to contact Ishwar Devkota at [phone].
Attachment
MH
cc: ATC Files
Mark Hubbard
Construction Grants and Loans Section
1633 Mail Service Center Raleigh NC 27699-1633 One
NorthCarolina
Phone:[phone]/FAX:[phone]/Internet:www.nccgl.net
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%Post Consumer Paper Naturally

IPI - - •-
O�pF W A T /c1 :::::.:
Governor Secretary
e North Carolina Department of Environment and Natural Resources
iter T.), y - & 4ist rot,UcPT.OF ENVIR I;limcl.P.E.Director
AND NATURAL RESOURCEB't sion of Water Quality
IMOORESVILL . 'AL OFFICE
September 6, 2005 F; - ,�`tz'7)
SEP 0 8 200:i
Mr. Joe Hudson, Director of Water Resources •
City of Statesville
P.O. Box 1 l 1 l .
Statesville,North Carolina 28687 WATER QUALITY SECTION
SUBJECT: Acknowledgement of Request for an
Authorization to Construct
Fourth Creek WWTP
Sludge Pump Replacement
NPDES Permit No. NC0031836
Dear Mr. Hudson:
The Construction Grants and Loans Section received your request for an Authorization to
Construct and the supporting documentation on September 6, 2005. We will notify you and your
engineer upon completion of our review.
If you have any questions concerning this matter,please contact me at [phone], or
Mr. Cecil G. Madden, Jr., P.E. at [phone].
Sincerely, , ,
i' '
/11/2 /, //f/7
Cecil G. Madden, Jr., P.E., Supervisor
Construction Grants and Loans Section
Design Management Unit
MH/dr
cc: Jerry Byerly, Asst. Director of Water Resources, City of Statesville
Mike Apke, P.E., McGill Associates
DWQ Mooresville Regional Office
WQ Central Files
ATC Files
Construction Grants and Loans Section One
1633 Mail Service Center Raleigh NC 27699-1633 North Carolina
Phone:[phone]/FAX:[phone]/Internet:www.nccgl.net Carolina
An Gn1121(lnnnrti InihdAffirrnntisin Antinn Crnninvnr—t;l1o.L DenvnInd/illo,_ O..ct(`nncnrnn.Dn...,r Natii all

f
WAIF Michael F.Easley,Governor
O�� rQ G State of North Carolina
William G.Ross,Jr.,Secretary
V) r D pe�t.OELoironment J l tural Resources
T `11
AND NO A,t Alan W.Kftc P.E.,Director
'_ MO0' "F'1 '4 Divistikr f Water Quality
November 19, 2003 NOV 2 6 20 '
Mr. Jerry Byerly
Assistant Director Water Resources
City of Statesville
P.O. Box 1111
Statesville, North Carolina 28687
Subject: Authorization to Construct Permit
ATC Number 031836A01
Fourth Creek WWTP
NPDES Permit NC0031836
Iredell County
Dear Mr. Byerly
A request for an Authorization to Construct (ATC) was received by the Division on
November 12, 2003. This project has been reviewed and found to be satisfactory.
Authorization is hereby granted for construction of a sodium bisulfite dechlorination system
with all necessary piping and appurtenances at the City of Statesville's Fourth Creek
Wastewater Treatment Plant.
This Authorization to Construct is issued in accordance with NPDES Permit No.
NC0031836 issued January 29, 2001, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in the permit.
Any sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water
Quality.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as
may be required by this Division, such as the construction of additional or replacement
wastewater treatment or disposal facilities.
The Mooresville Regional Office, telephone number (704) 663-1699, shall be
notified at least forty-eight (48) hours in advance of operation of the installed facilities so that
an in-place inspection can be made. Such notification to the regional supervisor shall be made
during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified water pollution control treatment system operator to be in responsible
charge (ORC) of the water pollution control treatment system. The operator must hold a
certificate of the type and grade at least equivalent to or greater than the classification assigned
to the water pollution control treatment system by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to
comply with the conditions of Title 15A, Chapter 8G, .0202. The ORC of the facility must visit
each Class I facility at least weekly and each Class II, III, and IV facility at least daily, excluding
weekends and holidays, and must properly manage and document daily operation and
maintenance of the facility and must comply with all other conditions outlined in Title 15A,
Chapter 8G, .0204. Once the facility is classified, the Permittee must submit a letter to the
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-161 7 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES

Permit No. NC0031836
Fourth Creek WWTP Dechlorination ATC
Page 2
Certification Commission which designates the operator in responsible charge within: (A) Sixty
calendar days prior to wastewater being introduced into a new system or (B) within 120
calendar days of the following, (i) after receiving notification of a change in the classification of
the system requiring the designation of a new ORC and back-up ORC or (ii) a vacancy in the
position of ORC or back-up ORC.
A copy of the plans and specifications shall be maintained on file by the Permittee for
the life of the facility.
The Operational Agreement between the Permittee and the Environmental Management
Commission is incorporated herein by reference and is a condition of this Permit.
Noncompliance with the terms of the Operational Agreement shall subject the Permittee to all
sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with the
terms and conditions of this Permit.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed
by other government agencies (local, state, and federal) which have jurisdiction.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and
the approved plans and specifications. Mail the Certification to the NPDES Unit, Division of
Water Quality, 1617 Mail Service Center, Raleigh, NC 27699-1 6 1 7.
If you have any questions or need additional information, please contact Mr. Mark
McIntire, P.E., telephone number [phone], extension 508.
Sincerel ,
4rn
" W. Klimek, P.E.
cc: Central Files
NPDES Unit, Permit File
oc OW/ Regional 0fc ,' +'atsr . .
iii m As a r'tiifi'catton'

irr.
6
VTo: Permits and Engineering Unit f
Water Quality Section
Date: January 9, 1998
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
To: Mark McIntire
County: Iredell
Permit No. NC0031836 (ACB031836)
PART I - GENERAL INFORMATION
1. Facility and Address: Fourth Creek Wastewater Treatment Plant
City of Statesville
PO Box 1111
Statesville, NC 28766
2. Date of On-Site Investigation (if conducted): N/A
3. Report Prepared By: Todd St. John
4. Persons Contacted and Telephone Number: N/A
5. Verified Discharge Point(s), List for All Discharge Points:
Fourth Creek Latitude: 35°46' 36" Longitude: 80° 47' 15"
Third Creek Latitude: 35°44' 17" Longitude: 80° 50' 28"
Attach a USGS map extract and indicate treatment facility site and discharge point on
map. Ensure discharge point(s) correspond to NPDES permitted discharge points.
Fourth Creek USGS Quad No.: D15SE USGS Quad Name: Statesville East, NC
Third Creek USGS Quad No.: E15NE USGS Quad Name: Shepards,NC
6. Size (land available for expansion and upgrading): Appears to be adequate area for
expansion.
7. Topography (relationship to flood plain included): These facilities do not appear to be in
the 100 year flood plain.
8. Location of Nearest Dwelling: greater than 500 feet

i
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of Existing Treatment Facility: WWTP
2. Type of Proposed Treatment Facility: See Part IV Recommendations
3. Sludge Handling and Disposal Scheme: Sludge is currently being treated with the N-Viro
Soil Process for distribution.
4. Treatment Plant Classification (attached completed rating sheet): Class IV (proposed
changes will not change the WWTPs classification.)
5. SIC Code(s): 4952
Wastewater Code(s):
Primary: 01
Secondary:
Main Treatment Unit Code: 05002 (both WWTPs)
PART III - EVALUATION AND RECOMMENDATIONS
The City of Statesville has applied for an Authorization to Construct permit to install
electric actuators on the sluice gates at the influent pump station of the Third Creek WWTP. At
the Fourth Creek WWTP the City also intends to install a flow splitter box to serve the three
clarifiers, install influent skirt plates on two of the clarifiers (Nos. 1 & 2), replace existing
chlorine disinfection equipment with new (chlorination) equipment, replace the RAS and WAS
pumps with pumps of the same capacity, and remove the old sludge chlorination facilities that
are no longer in use.
This Office has no objection to any of the above activities and recommends issuing an
Authorization to Construct permit for the above modifications.
Signature of Report Prkparer
Water Quality Region Supervisor
/ 0
Date

NON NPDES FACILITY AND PERMIT DATA 11/04/97 16:05: 14 '
UPDATE OPTION0 TRXID 50U KEY ACB031846
PERSONAL DATA FACILITY APPLYING FOR PERMIT APP/PERMIT FEE—$ 200.00 REGION
FACILITY NAME> STATESVILLE, CITY—WWTP/ADD 9 COUNTY> IREDELL 03
R,, ADDRESS: MAILING (REQUIRED) ENGINEER: PIERSON AND WHITMAN
STREET: PO BOX 1111 STREET: 5510 MUNFORD RD
CITY: STATESVILLE ST NC ZIP 28677 CITY: RALEIGH ST NC ZIP 27622 a, :,1
TELEPHONE TELEPHONE: [phone] .
STATE CONTACT> FACILITY CONTACT JOE HUDSON
TYPE OF PROJECT> A L ION TO CONSTRUCT LAT: LONG:
DATE APP RCVD 10/17/97 N=NEW,M=MODIFICATION,R=REISSUE> N
DATE ACKNOWLEDGED 10/31/97 DATE REVIEWED / / RETURN DATE / /
;: REG COMM REQS / / DATE DENIED / / NPDES #—
REG COMM RCVD / / DATE RETURNED / / TRIB Q .0000 MGD
ADD INFO REQS / / OT AG COM REQS / / TRIB DATE— / /
ADD INFO RCVD OT AG COM RCVD / /
END STAT APP P 01/15/98 . DA-TE ISSUED / / DATE EXPIRE / /
FEE CODE( 0 )1=(>1MGD),2=(>10KGD),3=(>1KGD),4=(< 1KGD+SF),5=(S>300A),6=(S<=300A),
7=(SENDEL),8=(SEDEL),9=(CLREC),0=(NO FEE) DISC CODES 66 ASN/CHG PRMT
ENG CERT DATE / / LAST NOV DATE / / CONBILL( )
COMMENTS: FOURTH CREEK & THIRD CREEK IMPROVEMENTS
MESSAGE: .** DATA MODIFIED SUCCESSFULLY x.
N.C. D PT. OF _
LAiy1RONMRNT, F-1EA LINE ,`.tea
• NATURAL RESOURCES
DEC 95:i 1997
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POINT SOURCE BRANCH
s tatro utttz
. (). fax 1111 • 't itcsuille. Nart17 (!uralina 281i77 :Q-c\04
r
September 30, 1997
• Mr. Dave Goodrich
Permits and Engineering .`ter
Division of Water Quality
P.O. Box 29535 W.G. D rr. OF
Raleigh, NC 27626-0535 NW BON! 'dv.Ar."f
AP NATURAL 2i:`y.)cR(:IZS
Re: Request for Authorization to Construct
Alterations and Additions to DEC 99 1997
Fourth Creek and Third Creeks WWTPs
City of Statesville, North CarolinaPASICII BF yIW.9E:' liE1 Yfut3ftlENT
Dear Mr.. Goodrich:
p�,$i91RllE kaiak ME
Please find enclosed three (3) copies of the plans, specifications
and design calculations for the referenced project along with a
$200. 00 check for the application fee.
At the Fourth Creek Plant, the proposed project will replace the
existing RAS and WAS pumps with new pumps of the same capacity;
replace the existing chlorination facilities with new equipment;
construct a flow splitter box to evenly distribute the flow to the
three (3) existing clarifiers; install influent skirt plates for
clarifiers 1 and 2 ; and remove old, existing sludge' chlorination
facilities that are no longer used.
At the Third Creek Plant, the proposed project will install
electric actuators on the two (2) existing sluice gates at the
influent pump station.
At your earliest convenience, please review these documents for
approval. If there are any questions, do not hesitate to contact
us.
Sincerely,
L. F. "Joe" Hudson, Jr.
Director
Water/Wastewater Treatment
cc: Peirson & Whitman

j t i
7TH9 U 199�1 RECEIVE© iNT SOURCE BRANCH
WATER QUAL'S!-C�O
October 16, 1997 OCT � �'�1��7
Non-Dischamp PArmitting
PEIRSON
Mr. Dave Goodrich
Permits and Engineering
Division of Water Quality
WHITMAN P.O. Box29535
Raleigh,
NC 27626-0535
ARCHITECTS Re: Request for Authorization to Construct
Alterations and Additions to the
AND Fourth Creek and Third Creek WWTP
Permit No. NC00318326 3/ e3 .cr c,,,
ENGINEERS City of Statesville, NortlipAem el ar, HRAu i
P&W Project No. 1427 s NATURAI. RESOURCES
PA. Dear Mr. Goodrich: DEC 9).R 1997
Please find enclosed three (3) tt . ns and
specifications for the referen •' with a
$200. 00 check for the applicati , a��copy of the
ESTABLISHED 1938 design calculation, and a letter from the City of
Statesville requesting Authorization to Construct.
At your earliest convenience, please review these
documents for approval. If there are any questions,
please do not hesitate to contact us.
Very truly yours,
PEIRSON & WHITMAN ARCHITECTS AND ENGINEERS, P.A.
5510
MUNFORD ROAD
Steve Scruggs, FEE
P.O. BOX
30398 S S/ted
PHONE Enclosures
919/782-8300
cc: Joe Hudson, City of Statesville
FAX Renee Parkman, City of Statesville
919/783-7642 Project file
RALEIGH
N.C.
27622-0398
U.S.A.

L)t5i( N UALLULATIONS
PESASON & J ZMA.N ARCHI_TEDIS AND ENGINEERS. P M
ROJECT: SHEET
PROJE OM *P
SUBJECT: DATE: .7.77nr_si44.-,crief BR ANC"
DEJGN CAL Cu. L I IO- I �5
CR& Ekvv
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DESIGN CALCULATIONS
P ERAS ON & 1i-LE T MAN_ AA CHI TEE S AN Q EN G INEEA S. P . A .
PROJECT: STA-to S vi //. SHEET g . OF 7
'7 7`4 Cieeek 1i0"JT/ PROJECT NO . 427
SUBJECT: S,/f/te,P Bvx DATE: 7,-2/,`)"? BY:
p4,,,,f" efi,C I f y,
bes,,,) ‘,O n9a.0 ( � ,; s3 c)\
fe2�,diet Li , 0 6 i / ' 9 cl✓�1
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U
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cc

DESIGN CALCULATIONS
• PEIRSON & 11HITMAH ARCHITECIS AND ENGINEERS. P . A .
PROJECT: SHEET 3 OF 7
PROJECT NO .
SUBJECT: �i6 (e/R GA-f DATE: BY:
3`-di wide
w, O&) (r) f c eie A
28 3/a - 4. 4411
, - a3 ,�U� z = II , Gay V/1.-
i)
�� &O I = 0,6'00 7
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c.D j-4-p / , 75 ' 11)
w
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Q
W
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Q
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I DESIGN CALCULATIONS
PEIRSON & WHITMAN ARCHITECTS AND ENGINEERS. P . A .
PROJECT: SHEET .4 OF 7
PROJECT NO .
SUBJECT: 1f. 6A(A GA DATE: ___`_ a BY:
j
r ,�'e .
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, • • DESIGN CALCULATIONS
• PEIASON & WHITMAN ARCHITECTS AND ENGINEERS. P . A .
PROJECT: SHEET S OF 7
PROJECT NO .
SUBJECT: -e-/7 CC eUA f''O DATE: BY:
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DESIGN CALCULATIONS
PEIREON FL WHITMAN AR J-LITECTS AND ENGINEERS. P . A .
PROJECT: SHEET c' OF 7
PROJECT NO .
SUBJECT: c- / W€-'R CS'/}feS DATE: BY:
Tay 5 ' Loi (R
f4� =rya, v9� ; 3 ; 0 ,3 as ( ")
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z
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x
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cc
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a
x
r
cc
a
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W
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DESIGN CALCULATIONS
• PEIRSON & L ITMAN ARCHITECTS AND ENGINEERS. P . A
PROJECT: SHEET 7 OF 7
PROJECT NO .
SUBJECT: ‘gAGk DATE: BY:
(v4 f/le, Le-veL /nJ l'D .S f/4e-Ary. S G o n/s v f�dX
M-e 1%5 5 73 C-61,e/i/e? /-ri,04f e51Cevx;c e,e)
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au P90°
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t-x t /5
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30 - 6 .co9 /1L + 0 , 3
Z o, /
o
P P//en3500 cp>r T�4 0' /44 (4 C 0, 50 '
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•
Performance Data � ' prrtv‹.
PUMP PRESSURE-PSI
MAX MODEL 0 30 65 85 115 170 230 340
RPM
No
US US US US US US US US
GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP
1000 E041 63 1.07 61 2.01 57 2.95 49 4.02 - - - - - - - -
1000 E042 63 1.61 62 2.28 62 3.08 58 4.29 57 5.36 48 7.37 - - - -
1000 E044 66 2.14 65 2.68 65 4.29 64 4.83 64 5.63 62 7.77 61 9.65 56 14.21
800 E051 102 1.34 100 2.81 94 4.56 85 5.90 - - - - - - - -
800 E052 104 2.01 102 3.49 101 5.36 101 6.97 98 8.71 92 12.87 - - - -
800 E054 101 3.75 100 5.36 100 8.05 99 8.85 99 9.92 98 13.40 97 17.02 95 23.59
700 E061 158 2.14 151 4.02 144 6.70 130 9.11 - - - - - - - -
700 E062 158 1.86 157 5.36 155 7.64 154 10.05 145 12.73 132 18.10 - - - -
700 E064 149 5.63 149 9.38 148 11.39 148 12.73 147 15.41 145 20.11 143 25.47 140 35.52
600 E071 217 2.68 211 6.43 202 10.05 180 14.07 - - - - - - - -
600 E072 220 5.09 218 8.71 215 12.06 213 14.77 212 18.77 193 25.73 - - - - 111
600 E074 220 11.39 219 14.08 219 18.77 218 20.11 218 21.44 216 28.15 213 38.87 189 52.28
500 E081 257 2.68 250 6.70 233 10.72 206 14.47 - - - - - - -
500 E082 255 6.03 254 9.38 253 12.73 251 16.09 242 20.10 229 27.21 - - - -
500 E084 242 9.38 240 13.40 239 18.77 238 21.45 237 24.93 233 33.51 231 42.09 220 57.64
500 E091 305 3.75 297 9.11 279 13.94 251 18.77 - - - - - - - -
500 E092 299 6.70 296 10.72 293 16.08 286 21.45 274 25.87 242 36.19 - - - -
400 E101 413 5.36 400 11.39 369 18.10 317 24.12 - - - - - - -
400 E102 409 6.70 405 13.40 400 19.70 396 26.81 381 33.91 330 48.25 - - - -
400 E104 413 10.00 410 17.5 405 26 400 31 390 38 380 51 370 66 360 92
350 E121 651 8.04 633 18.09 616 28.55 572 38.87 - - - - - - - -
350 E122 669 14.74 660 22.79 651 30.83 642 44.24 633 54.96 545 76.40 - - - -
270 E151 950 14.74 924 27.48 880 40.21 774 56.30 - - - - - - - -
270 E152 1000 30 945 46 890 66 835 78 800 94 780 126 - - - -
200 E201 REFER TO INGERSOLL-DRESSER PUMP
Pump Performance
NOTES:
1. The tabulated performance data is based upon handling clean water at 68°F using a natural rubber stator grade'A'.
2. BHP=Brake Horsepower.
3. For guidance in selecting a pump for use with fluids of varying abrasion and viscosity refer to Ingersoll-Dresser Pump.
1111

' � 3
7I-
Pump 0 Options — and Build Accessories
BASIC PUMP CODE Stators
FEATURES DESCRIPTION 1 2 3 4 5 6 7 8 9 10 11
Various material options are available-including
Cast Iron c ::4 K - natural rubber RA, buna N (RR), high nitrite and
Body Material ' g
Stainless Steel Sgi2 �i..Nip F
Solid Shaft with Monofloa Power Dnve .4;14. E "`' hypalon.
Pump Design .x cc
All Stators are molded to metal -"$ � ;' s� r-.
6.3 gals r .. 0 4 } Iv T,A
12.3gals 0 5 Rotating parts code-
Pump gals
Pump 36.3 gals .ten,, ' 0 7 ��� A 7 r.z
Displacement 50.6 gals 41. 0 8 4'`t` > Standard Materials.
69.9 gals - o o ., t't Code 2- Mild steel shaft/nitralloy rotor
(Per 100 revs.) 103.4 gals
191.0 gals 1 20.n
a als ▪ , 5 .. .. Code 3 -Mild steel HCP shaft/Stainless steel HCP
' •'f ;k
925. gals 2 0 ' krn rotor
Two • '• a - 2 s -v Code 4 Mild steel HCP shaft/Tool steel HCP rotor
Pump Stages Three `4 it 3 vk " {, ' '
Four4 t Code 5-Stainless steel shaft/Stainless steel rotor
Eight � �� 4� 6 � K t>' V
End Cover Straight Through ,?s`;t-ss mt M ,'I ,i . ;. 5 Code 8-Stainless steel HCP shaft/Stainless steel
Duty Standard ".i£> I . -a- 11 S It "Ss*' � HCP rotor
Mark Number Mark One 1989 r' `°' - -ra*r 2. t - 1-
Natural Rubber 69-75'IRHD ,n-+ '8 _S' A m
Stator Material Buna'N'(Nitnle)65-72°IRHD 'x u 'P-'- 1 A Sealing
High Nitnle 65-72°IRHD f" VS }
Hypalon 67-73'IRHD L &,' t H t
f Packed gland and single or double mechanical seals
S 905m31 9R0 Nitralloy Rotor/ ..h r" 'F,- •. 2 .-
Mild Steel(HCP)Shaft - - " ,. can easily be accommodated.
316 SS(HCP)Rotor/ r �`" 4. w 3
Mild Steel(HCP)Shaft 11.r
Rotating Parts :Zr-�_t �+- z � '�x�, q '�`
Tool Steel(HCP)Rotor/ Temperature
Material p
Mild Steel(HCP)Shaft ,' x `
316 SS Rotor and Shaft ae-" " = 5 ` Applications up to 195°F can be handled with stan-
316 SS(HCP)Rotor and Shaft : ,�� 8 "- dard materials. For higher temperatures refer to
ANSI Flanges • lag r 'x i /E
Configuration ANSI Flanges and Access Ports 'M'r ' /A Ingersoll-Dresser Pump.
Example of Typical Coding C E 0 8 2 M S 1 R 4 /E
Baseplates
A variety of designs is available.
Accessories
Relief valves, product sensing equipment and auxil-
iary seal systems can be readily supplied. Flexishaft
shrouds are available.
0
7

)//:
Bareshaft Pump Dimensions
Al A
DISMANTUNG B c
SPACE
U1 KEYWAY
I d F DTH
``. o 11
Fr.
414
J1r J1
N3 N2 N1 N_
74-
P1 Q1
y �H1 �H1 DIAT
M L K G
Model A Al I B C D E F G H H1 H2 J I J1 J J2 KIL M
E041 48.46 4.57 35.47 12.99 3 2.95 2.36 3.74 1.77 1.57 1.57 0.31 10.24 0.24 6.50 125.87 10.12
E042 60.75 4.57 45.59 15.16 3 3.86 3.15 4.80 1.57 1.57 1.57 0.39 10.31 0.31 6.85 28.66 18.27
E044 83.86 5.12 65.87 17.99 3 3.78 3.15 4.84 1.77 1.77 3.15 0.39 10.31 0.87 7.87 131.85 37.72
E051 59.13 5.20 44.37 14.76 3 3.86 3.15 4.80 1.57 1.57 1.57 0.39 0.24 0.24 6.85132.83 12.40
E052 74.29 5.20 56.30 17.99 3 3.82 3.15 4.84 1.77 2.36 2.36 0.39 0.31 0.31 7.87 36.69122.72 •
E054 103.98 5.83 83.07 20.91 4 5.08 4.33 6.10 1.77 1.77 3.35 0.47 0.31 0.87 8.94 40.28 46.89
E061 69.21 5.83 52.83 116.38 4 3.78 3.15 4.84 1.77 2.36 2.36 0.39 0.31 0.31 7.87 39.49 14.76
E062 88.19 5.83 67.28 20.91 4 5.08 4.33 6.10 1.77 2.36 2.36 0.47 0.31 0.31 8.94 43.86 27.05
E064 122.17 6.57 98.86 23.31 6 5.35 4.45 6.10 2.17 2.17 3.54 1.22 0.31 .087 10.28 48.27 55.55
E071 80.67 5.95 61.26 19.41 6 5.08 4.33 6.10 1.77 1.97 1.97 0.47 0.31 0.31 8.94 44.72 18.46
E072 101.57 5.95 78.27 23.31 6 5.35 4.45 6.10 2.17 2.76 2.76 1.22 0.31 0.31 10.28 49.80 32.95
E074 140.31 6.53 111.61 28.70 6 6.69 5.51 7.60 3.15 3.54 3.54 0.79 0.87 0.87 12.91 54.69 62.36
Model N N1 N2 N3 P P1 P2 Q Q1 02 R S T U U mm U1 U7 Wt.
mm lbs.
E041 1.06 4.33 25.71 10.12 3.15 3.15 3.15 4.33 4.13 4.13 3.94 8.46 5/16 1.10 28 0.31 8 82
E042 0.98 4.88 28.39 18.27 3.94 3.94 3.94 5.12 5.12 5.12 4.41 8.94 3/8 1.38 35 0.39 10 101
E044 1.18 5.51 31.73 38.54 3.94 3.94 3.94 5.51 5.12 5.35 4.92 9.65 1/2 1.57 40 0.47 I 12 174
E051 0.98 4.88 32.56 12.40 3.94 3.94 3.94 5.12 5.12 5.12 4.41 9.13 3/8 1.38 35 0.39 10 122
E052 1.18 5.51 36.18 22.72 3.94 3.94 13.94 5.51 6.06 6.06 4.92 9.65 1/2 1.57 40 0.47 12 170
E054 1.14 6.69 40.16 47.44 5.12 5.12 5.12 6.30 6.30 6.30 5.91 11.02 1/2 1.97 50 0.55 14 253
E061 1.18 5.51 38.98 14.76 3.94 3.94 3.94 5.51 6.06 6.06 4.92 10.04 1/2 1.57 40 0.47 12 187
E062 1.14 6.69 43.27 27.05 5.12 5.12 5.12 6.30 6.69 6.69 5.91 11.02 1/2 1.97 50 0.55 14 247
E064 1.42 7.48 47.95 56.18 5.51 5.51 5.51 7.09 7.09 7.09 6.89 13.19 5/8 2.17 55 0.63 16 398
E071 1.14 6.69 44.33 18.46 5.12 5.12 5.12 6.30 6.69 6.69 5.91 12.20 1/2 1.97 50 0.55 14 260
E072 1.42 7.48 49.29 32.95 5.51 5.51 5.51 7.09 7.09 7.09 6.89 13.19 5/8 2.17 55 0.63 16 363
E074 1.93 9.06 54.13 63.98 8.66 5.71 5.71 11.02 7.40 7.40 8.86 15.16 3/4 2.76 70 0.79 20 693
H,HI,O&01-Minimum foundation pad sizes.T=Hold-down bolt diameters.U=Shaft diameter.
1. All dimensions in inches except where otherwise stated and for guidance only.For full certified drawings refer to
Ingersoll-Dresser Pump.
2. Shaft diameters are to be BS 4506: 1970 and keyways to ISO R773.
8

• DESIGN CALCULATIONS
PEIRSON & WHITMAN ARCHITECTS AND ENGINEERS. P . A .
PROJECT: SHEET / OF S
,Q PROJECT NO .
SUBJECT: /` h5 ,Y(/)71S DATE: BY:
Lev, 1-teaW
L L do; 7-72 , 9/
ti/L 0,j/',6u f,a.i eax 7 7 8 , J'5
v
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)3:� " sr 0vf 160
civic e 20
/a, .' X 4SC c /1/ )( lS 45
Tee Sf' 7-Au 20
PA.0 L/ . / 40
q v ELz 3 5
/02 x8 .. /&uce, /0
330
7oz) len C : b'U = e , 3�- /0/
90, / 'm C : 'd p: i //r ,
?„
727 —' 7" V- ,e/e /c"
g„ Tee st TR1 LDS
700 31 I/�
//00 yi-e7 C g t 3Y
/14
4
L 7-0,3Q) t mail) f a3)) 0),,„,) = a 4
�L = �l , 17Y 33O/0) t C , 32l) (14,D) 9 '
.:J

DESIGN CALCULATIONS
. PEIRSON & WHITMAN ARCHITECTS AND ENGINEERS. P . A .
PROJECT: SHEET a OF s
PROJECT NO .
SUBJECT: DATE: BY:
his cksal
eCiiV 4401e/f
£ksLIC/pi70N 4 en jW
sr teye
12" X 6 j QCe e III k 2U 60
/2 " 7e e 57` 742G1 0�0
1 /°L I/9/v c �c 0
Jz" I e c Side ou71/4/ 20
aas
7610 <yen C = 0 f : 0 . 32. /60'
6 I' h'1 mc f e2 3 sr p e S
S
70) �--� =ko -� = 1 ,115 Novi
@ i�rav .Y, C = Y/Aro '
L P c
�� �� 0 , �� 05 � ,u5 -(y/o)
e - Q,17)&a4x,i,) f (74.1) 0) _ �l, I
J

DESIGN CALCULATIONS
PEIRSON & WHITMAN ARCHITECTS AND ENGINEERS. P . A .
PROJECT: SHEET 3 OF f
PROJECT NO .
SUBJECT: DATE: BY:
(�15 044.4.9
C.a--,r,I I,1/ 2/oa SP„, - 42 az) 90 r,
/6 ' 7e 57L 71PH /I H 1 x 3v /2_o
/6 1 X 4 .5" L /l x zo 4/0
/6 ` /°l
390
ICa a l av v i-r) c = ICJ 0, 6 / i oo '
2/2-ou C s I f = .2 . a ?//0--0
e 4.20 p m
_ ( (1/43c7) = 5, 6 9
2 V1
3 i;1‘41 _ - �a.220 2av
Z 43t / 1- 3 _ 1'3 ,
3 einvs N4✓/n/ A4,/ S e ef /4,07i yir? &pc.,
e 4t , = a8 '
r

LIZI
,5400 Solids-Handling Pumps 119
Performance
; II ! 1 , 1I ( 1 , ii iii I . ! � ; I ! ; I : ; I I ' ll 16 5„
i � I i ii if ! : II ! 1 I , i , ' , '
• a ++■q■■■�■ ■®u®�■ N:.SHR ; g �-f-■ ' = 5413
40 ! ! ; t i + ! I i ! ! • I i i I I I l i 8 EL VERTICAL FOR
HI{ 1 ill 1 ; ■,® I I I 1 f Z FLEXIBLE
Mk, i ! Sarni ! I , ■ ! ! I
I ! i , i 1 , ■ 1 ! 1 , 0 SHAFTING
36 I lit 621 � { � { 1 i I t !
7 }
! ff ' ! I i i i 5423
I1*1.++: 11 f i I ��i i 1 i i r i I 1 ( i ! HORIZONTAL
32 t ! 1111i
iii ! I i ! IIit I
f il � � 5433
iiiiiii1 { VERTICAL
H 28 1 1 ! 1111111111 • :I BILTOGETHER
LL + ++ �iI���l�� $_ IE ! 5433M&W
24 1M ���. � SUBMERSIBLE
• z �-
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.

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Utb1VN UALUULAJ1UN5
' pEIRSON & WHITMAN ARCHITECTS AND ENGINEERS. P . A .
PROJECT: SHEET / OF (
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�-�1 SUBJECT: /ogQ /4/e ��re?4''1 DATE: BY:
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•
•
i
BAIFIS BAILS -j, Z6
E LR CHEMICAL FEED EQUIPMENT
PORTER Series 70Ct:730 oci 2 0 199I
WALL OR TON CONTAINER ��
INT SOURCE BRANCH
MOUNTED CHLORINATORS
(SULFONATORS &AMMONIATORS)
n
The Series 70C1730 Chlorinators are versatile high
quality, low cost solution feed units which are vacuum
operated at sonic conditions. Proven design, rugged
construction and use of the best available materials
assure precise gas feeding, low maintenance, Wall-Mounted
dependable operation and long life. Chlorinator i
The chlorinator vacuum regulator mounts on a wall, or
directly on the gas valve of a ton container by means '
of a yoke clamp connection. The chlorine flowmeter
assembly may be mounted either on the side of the
vacuum regulator or on the wail, at the user's
convenience. The ejector may be used for systems
having back pressures up to 200 psig (1380 kPa) and
is usually wall mounted. It can be pipeline mounted
with a 100 IbSday capacity limit.
Automatic changeover systems use two vacuum
regulators without the necessity of a separate r,',
changeover valve. Multiple meter systems are
available for feeding more than one point of - i'_ Ton Container
_-_ application. The Series 70C1730 chlorinators are { Mounted
available for manual or start-stop operation and have 'r �; Chlorinator
maximum feed rates ranging from 1 to 500 lb./day 1
(20 g/h to 10 kg/h). Similar units may be used for
feeding ammonia, carbon dioxide and sulfur dioxide
gases.The maximum capacities for these feeders are
approximately 50%, 75% and 100% respectively of the
cholorinator capacity, e.g.,the ammonia feeder is rated
at 250 lb/day maximum. Flowmeter Rangeability: 20 to 1 for any one metering
Design Features tube. For example, a chlorinator with a maximum
g capacity of 500 lb/day can measure and control gas
• Modern Design: Sonic flow differential pressure feed over the range from 25 to 500 lb,/day. Metering
control requires no moving parts resulting in tube scale length is 4 inches (100 mm) for easy
increased life expectancy and dependability. readability and is protected from accidental breakage
■ Versatility: Optional second vacuum regulator by a plastic shield.
adapts the feeder to automatic changeover without Ejector Requirements: Reasonably clean water at
an extra valve. Additional flowmeters and ejectors pressures of 3 psig (20 kPa) or greater is required to
allow for multipoint application. operate the ejector.Water consumption and required
• Vacuum Operation: Provides safety for operating inlet pressure are dependent upon chlorinator capacity
personnel and equipment. Any leak will cause air and ejector discharge pressure (back pressure). Refer
to enter the system rather than gas to escape from to ejector sizing tables (available upon request)for
it. details.(Also see Sizing Diskette below.)An ejector is
■ Minimum Maintenance: Cartridge filtration system normally required for each metering tube and rate
reduces routine inspections and maintenance time. valve. For swimming pool applications, the ejector with
Superior design of the high presssure ejector with
triple back flow protection prevents the back flow the intergral anti-siphon valve must be used.The
of water to the vacuum regulator. standard ejector is not suitable for alkaline solutions.
For this service a special ejector is provided.
Engineering Specifications
Sizing Diskette
Capacities: Standard metering tubes are available An easy to use sizing diskette for chlorinator ejectors is
with the following maximum capacities: 1, 3, 10,25, 50, 100, 200, 300 and 500 lb/day (20, 60, 200 available from Fischer& Porter Co. Please contact your
and 500 g/h; 1, 2, 4, 6 and 10 kg/h) of chlorine nearest sales office.
gas. Any combination of capacities may be used on
multiple metering tube units as long as the total does

• Mbufiting'. The chlorinator vacuum regulator with Materials of Construction: Cycolac" Borg Warner
manifold is mounted on a wall or on the gas valve of Inc., Valox" General Electric Co., PVC, Silver, 16
a ton container. Temperature limits on the vacuum Tantalum, Viton" E.I. Du Pont Co., Hastelloy C-276"
regulator are 2° to 54? C (35° to 130°F). The Cabot Corp., Teflon' E.I. Du Pont Co., KYNAR®
metering tube assembly may be mounted either on Pennwalt Corp., transparent Polycarbonate, silver
the side of the vacuum regulator or on a wall. The plated brass, and borosilicate glass are used in the
ejector may be wall or pipeline mounted for up to 100 construction of the chlorinator and ejector. The
lb/day capacity. If high temperature water is used mounting manifold is ductile iron with a corrosion-
(above 25°C, 77°F) ejector performance will be resistant coating.
impaired due to decreased solubility of the gas and Temperature Limits:The corrosion resistant plastics
reference should be made to Technical Information used in the construction of the chlorinator will soften
Bulletin 71-3 for decreased pressure ratings of PVC and distort above 130°F(54°C).The ambient
piping. temperature must not exceed this maximum allowable
Control Modes: Manual adjustment of the rate valve limit.Additionally,the temperature of the ejector supply
alters feed rate. On multiple meter chlorinators each water must not exceed 100°F(38°C).
meter is equipped with a rate valve. Start-stop control Shipping Weight: Approximately 14 lb. (6.3 kg)
is obtained by installation of an automatic valve in the including standard accessories.
ejector supply line. Cubage: 3.4 ft3 (0.1 m3)
This valve, controlled by a timer. flow, pressure or
pump control device, will start or stop the chlorinator. Accessories:
These chlorinators may be used for multiple or Standard
additive rate feed applications through the use of 50 ft. (15 m) 5/8-inch tubing, 25 additional feet(7.5 m)
multiple meters and gas or water supply solenoid are provided for automatic changeover systems
valves. and for each additional meter
Connections Bottle for ammonia solution
Chlorine Gas Inlet: 3/4-inch NPTE Insect screen for vent line
Spare gaskets
Ejector Water Inlet: 1-inch NPTI Tube of thread lubricant
Solution Outlet: 3/4-inch NPTE and 1-inch hose or Universal wrench
11/2-inch NPTE and 2-inch hose. Size is determined Optional
by water flow required to operate chlorinator. Additional Flowmeters and Ejectors for
Alternate 1-inch NPTE thread may be used for in- Multiple Point Application
line ejector mounting. This alternate is usually Amperometric Titrator(Specification 17T2000) --
reserved for 100 Ib//day max. capacity. Automatic Changeover System
Safety Vent: %-inch tubing Booster Pumps
Electrical Requirements: 120 V ac too rate a 30 watt Chloralert" Chlorine Gas Detector
electrical heater in the gas inlet.The heater is furnished (Specification 17CA1000)
with a 10 foot(3 m) cord having a plug with parallel Diffusers
Flexible Connectors
blades and a round grounding pin.
Ejector with Integral Anti-siphon Valve (must be used
Description ofOperation for swimming pool applications)
p , Gas pressure gauge
The chlorine gas from the cylinders or containers Out-of-gas switch contact(rated at 4Aat 120 or 240 V ac)
enters the manifold, where it is filtered and electrically Vacuum Switches(excess and/or loss of vacuum)
heated to evaporate liquid chlorine which may be
present. Water flowing through the ejector creates a
vacuum which opens the inlet valve to admit the gas a gas port closes to prevent excess vacuum levels
into the regulator. A diaphragm regulates the vacuum from developing upstream of the vacuum regulator
at this point to a closely controlled value. and also prevents any moisture from being drawn
The gas passes through the flowmeter(s) and the rate back into the operating components or the gas
control valve(s) and then to the ejector or ejectors supply lines.
where it is thoroughly mixed and dissolved in the At the same time an indicator on the side of the
water and carried to the application point as a vacuum regulator shows that the gas supply has
solution. When multiple metering tubes and ejectors been exhausted.
are used, each operates independently of the others. When the vacuum regulators are used in an
Adjustment of one of the gas flow rates has no effect automatic changeover system, either vacuum
on the other rates. regulator is selected by the station operator allowing
The system is completely under vacuum from the gas to flow until the chlorine source is exhausted. At
ejector to the gas inlet valve during operation. If the that point the second vacuum regulator opens to
water supply to the ejector is stopped, or the allow gas feed to continue. Each regulator has an
operating vacuum is lost for any other reason, the indicator to show whether it is in "Reserve",
spring loaded gas inlet valve immediately closes to "Operating" or a "No gas" condition.
isolate the chlorinator from the gas supply. Any gas, Within the ejector there are dual check valves and an
under pressure, which might enter the regulator is emergency drain connection to protect the vacuum
vented from the system through the built-in pressure regulator from flooding.
relief valve. If the source of chlorine gas is exhausted,

• 4 DIMENSIONS 7 (d
Vacuum Regulator Flowmeter
+ 9-3/16 2-3/4
(2331 7 1701
GAS OUTLET
VENT CONNECTION GAS FLOWMETER GAS OUTLET (SEE NOTE 21
�{•
(SEE NOTE 21 1r(REGULATOR OR 1SEE NOTE 21 OPTIONAL-GAS •1 WALL MTD1 PRESSURE GAUGE ;,'N' "'7
I R MUM r
- . d-J� 11 ih� II II :MN
6-I/4 so WI!`- -A i
I M 14241 (J0 II LGAS INLET ij
(BOTH SIDES)
3/4 NPT)
4. Lit
(I (SEE NOTE 3 a 7) !
c3 HEATER CORD I I/ o II . ID
4�
ISEE NOTE al
i� �Cr. ♦ I
8•5/16 1 GAS OUTLET CONNECTION GAS INLET ' 2-1/6 ••
12101 ' FOR USE W/WALL MOUNTED� (SEE NOTE 21 —" 1921
FLOWMETERIS1,(SEE NOTE 21. St-Sur_• SI-Sus PER METER
Ejector
3/4'NPT OR 3/4*NPT OR I-I/2"NPT OR 3/4"NPT OR I-I/2"NPT OR
I.TO HOSE I-I/2"L0.NOSE I-I/2"L0.HOSE 2"LO HOSE 2"TO HOSE
I1 7
1] x: x: x= x: x=
11-7/8 14-/16 17-0/5 I558463-I • IS-111
13021 I 13571 I (4526 ) (3941
In 1 n. 1 n . 1 R i In I
NOTES:
T- OUTLET CONNECTION
C ON 1. Al)dimensions are in inches mm
OUTLET CONNECTON � )-
SEE TABLE) 2. Adapter provided for 4 inch tubing.
• 3. One side provided'with a plug.Other side provided with adapter for
• I"NPT I union nut coupling.
(SEE NOTE s 4. 10-foot long cord and three-pin plug.
GAS INLET 5. For pipeline mounting of ejector.Limited to 100 lb/day max.and lines
I.-_: x CONNECTION
(SEE NOTE 21 I 6 inches in diameter or larger.
6. Water inlet piping normally should be no smaller than solution outlet
E° ° I size.
7. For ton container mounting, the manifold is attached to the ton
• #+ container gas valve using a yoke connection provided with me
�p� chlorinator.
J 8. Special ejector supplied for alkaline service.
tali' OPTIONAL
'a' ANTI-
SIPHON
�■ VALVE
DRAIN
CON(SEE NOTE N
(SEE NOTE 21 'PATER INLET
I
I"NPT
(SEE NOTE 6)
3-1/4 6-S/8
(83) 0681 SI-S.0
TYPICAL ARRANGEMENTS
1
3 1 3
1 2
(AUTOMATIC CHANGEOVER SYSTEM)
1. VACUUM REGULATOR 2. FLOWMETER AND RATE VALVE 3. EJECTOR s1-5462

A
/ t)
BAI LEY
&FISCHER
PORTER
MODEL NUMBER DESIGNATION Equipment Description
70 7 x D x X
— _ __ ___ The chlorinator shall be a vacuum operated solution
feed type with a feed range of to lb/day
Chemical Service of chlorine gas. A flowmeter having a 20:1 range shall
Ammonia A ! be provided to indicate the chlorine feed rate. It shall
Chlorine C be suitable for mounting on the wall or on the
Sulfur Dioxide S chlorinator vacuum regulator, protected by a plastic
Carbon Dioxide B shield and equipped with a control valve for manual
operation.
Regulator Mounting and
Type of Control The unit shall be suitable for either ton container or wall
Wall or Ton Container Mtd. mounting and include an interal manifold trap complete
wiMan.Control 3 with a built-in electric heater with a ten foot cord. The
manifold shall have a removable chlorine filter with a 5-
No. of Rate Values and Ejectors ! square inch filtering area and 90 micron pore size.
1 11
2 22 A positive tight shut-off valve shall be provided within
3 33 the chlorinator to isolate gas under pressure from the
4 as I control system should there be a loss of vacuum. An
5 55 I easily removable filter screen shall be included
upstream of the inlet valve. A spring-operated pressure
2nd Vac. Reg. for Auto Changeover relief valve shall be provided to prevent the build-up of
Not Required X pressure within the gas control system. An excess
Wall Mtd. 1 vacuum shut-off valve which isolates the regulator and
Ton Container Mtd. 2 gas supply system from the ejector on loss of gas
Power Requirements pressure shall be supplied. Provision for automatic
120 v 1 changeover shall be incorporated within the vacuum
240 V 2 regulator without the need for an extenal valve. An
indicator shall provide a visual signal when the chlorine
Gas Pressure Gauge gas supply is exhausted or interrupted.
Not Required X
Required 1 The ejector shall be provided with dual check valves as
well as an emergency drain valve to protect against
Units flooding of the vacuum regulator.
Metric C
English e The unit shall be supplied with the following
accessories:50 ft of 5/8-inch polyethylene tubing for
Ordering Information vent and vacuum lines, insect screen, bottle for
Please specify the following: ammonia solution, spare gaskets, thread lubricant, and
a universal wrench. The chlorinator shall be Fischer&
Model Number
Ton container or wall mounted vacuum regulator Porter Company Series 70C 1730.
Flowmeter Capacity (for each meter)
Water supply and back pressure (for each ejector)
Automatic Changeover (if required)
Number of Flowmeters
Number and Type of Ejectors
Optional Accessories
Maximum pH of ejector water supply
Note:Specifications are subject to change without notice BAILEY-FISCHER&PORTER COMPANY
Copyright©1995 Elsag Bailey Process Automation Warminster,Pennsylvania 18974
9 95 AG 5M Phone:[phone]

?-/-4)
EJECTOR SIZING CURVES
i Chlorinator Series M-ax Capacity Drawing Number
------------
70C1710 1 to 100 lb/d SD-70-1501, Sht 2 to 7
70C1730 1 to 500 lb/d SD-70-1501, Sht 2 to 10
70C17b0 , 10 to 100 ib/d SD-70-1501, Sht 3 to 7
10C1780 10 to 500 lb/d SD-70-1501, Sht 3 to 10
10C4400 10 to 2000 lb/d SD-70-1501, Sht 3 to 12
1005500 w/2" FOE 2000 to 4000 10/d SD-70-1541, Sht 1 to 3
7005500 w/3"-150#Flgd FOE 4000 to 10000 lb/d SD-70-1541, Sht 4 to 7
NOTES:
1. The 70C1700, 70C4400 and 7005500 Series Chlorinators are equipped with ejectors
having fixed nozzle and throat sizes. Each curve represents the performance of
a nozzle and throat combination identified by a number AAA x BBB. The nozzle
and throat part numbers are obtained by substituting these numbers in the part
number as indicated below:
Chlorinator Model Number Nozzle Throat
70C1710,70C1730,70C1760,70C1780, •
and 70C4400 (500 lb/d or less) 418KAAAU01 419D88BR40
70C4400 (1000 and 2000 lb/d) 418PAAAU01 419GBBBUO1
1005500 (2000 thru 4000 lb/d) 418PAAAU01 419GBBBU01
7005500 (4000 to 10,000 to/d) 420AAAAU01 420CBBBU01
2. The ejector for the 70-5500 Chlorinator may be selected from two models
according to feed capacity. Both are of the fixed orifice type for which a
nozzle and throat must be selected.
41110 3. When the ejectors are used on gases other than chlorine, beside material
changes, a factor must be used to determine the equivalent chlorine capacity
which is required. For ammonia, multiply the capacity by 0.5 and size as a
chlorinator. For carbon dioxide, multiply by 1.3 and for sulfur dioxide by 1.0.
4. Solution lines from the ejector should be sized with consideration given to the
flow rate and the length of solution line required. Where line lengths are
long, the following sizes are suggested.
Flow Rate Solution Hose or Pipe
Up to 7 gpm 3/4" ID
8 to 12 gpm 1" ID
13 to 28 gpm 1-1/2" ID
29 to 49 gpm 2" ID
50 to 77 gpm 2-1/2" ID
78 to 110 gpm 3" ID
111 to 196 gpm 4" ID
197 to 450 gpm 6" ID
5. When an ejector, up to 500 lb/d feed capacity, will be used on akaline service
(pH=9 or above) typically for the destruction of cyanides or the reduction of
chromic acid, an ejector fabricated of all PVC material must be provided.
Doc. #6293A Arc. #0151A 18 Sep 86
40 PART NUMBER
REV
6FISCHERr"'-� EJECTOR SIZING CURVES so 70 1501 3
PORTER SHEET 1 OF 15
WARMINSTER. PA 18974 USA DRAWING NUMBER
e
FORM 265-27e-2

•
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SEE NOTES ON SHEET 1
•
II PART NUMBER REV 4
_ FISCHER A '`"
SHEETD O 78 °15 2 EJECTOR SIZING CURVES [...
PORTER
WARMINSTER. PA 18974 USA
DRAWING NUMBER
♦
FORM 265-278-2

SERIES 70- 1710 & 70-1730 GAS DISPENSING SYSTEMS P/o
•
INTRODUCTION Continued 70 _ 1 7 00 D 00 0
—
I. General Design Level: Letter assigned by the factory;
letter changes when some part is no longer
The Fischer & Porter Series 70-1700 Gas Dispens- interchangeable D
ing Systems are used to feed gas, under vacuum, at a No. of Flowmeter-Rate Valves & Ejectors
manually selected and controlled rate into one or Reserved for Specials&Series 00
more streams of water or process liquid. One 11
Two -22
The maximum capacity of the Gas Dispensing Three 33
System is related to the gas being handled and the Four 44
mounting location of the vacuum regulator. These Five 55
capacities are listed in Table A. Automatic Changeover Option: Second Vacuum Regulator
required to utilize this option
VACUUM REGULATOR MOUNTING LOCATION •Reserved for Specials&Series-
0
GAS •Not Required X
BEING TON •Second Vacuum Regulator—Wall Mtd
HANDLED WALL CONTAINER CYLINDER *Second Vacuum Regulator—Ton Container Mtd 2
Chlorine •Second Vacuum Regulator—Cylinder Mtd 3
or 500 lb/d 5001b/d 100 lb/d
Sulfur 10 kg/h 10 kg/h 2 kg/h III. Component Description
Dioxide A. Vacuum Regulator
250 lb/d The vacuum regulator serves to reduce the supply
Ammonia 5 kg/h fi T pressure in a gas cylinder or ton container to a
iTechnological aspects peculiar to ammonia supply containers preclude the regulated vacuum for safe transport of the gas to the
use of these mounting locations. point of application. A leak in a vacuum transport line
TABLE A. SYSTEM CAPACITY simply allows air to be pulled into the line; if the gas
transport line was a pressurized line and a leak
II. Model Numbering System occurred, the dangerous gas would be discharged to
the atmosphere. The vacuum regulator is a spring op-
Refer to the Fischer & Porter Manufacturing posed diaphragm type that operates the gas inlet
Specifications Sheet for the specific model number of valve.
the Gas Dispensing System furnished. The
The flow rate of gas thru the regulator is set and in-
significance of the model number is detailed below.
dicated by a flowmeter which contains a manually ad-
70 1 7 00 D 00 0 justed needle valve, called a rate valve. One or more
Engineering File Reference _ flowmeters may be furnished with each vacuum
Chemical Dispensers 70T regulator and they may be either flush or wall
mounted, as specified. The operating vacuum that
Chemical Service pulls the gas thru the system, is created by a separate-
Ammonia ss A
Chlorine Gas C ly mounted ejector; one normally being required for
Sulfur Dioxide Gas - S each flowmeter-rate valve assembly.
Carbon Dioxide Gas B* Each regulator is equipped with a vacuum actu-
Other Gases -Y* ated, manually reset, three position, "status" lever
Design Designation; Fixed Data —1 marked RESERVE, OPERATING & EMPTY. When a
Compact Vacuum Regulator 7 system is placed into operation, the lever is manually
set to the OPERATING position. When the gas in the
Regulator Mounting cylinder or ton container is exhausted,or has been in-
Reserved for Specials&Series 00 advertently interrupted, the lever automatically
Cylinder Mtd. 10 moves to the EMPTY position. The RESERVE position
Wall or Ton Container Mtd.---- 30 is used when a dual regulator type gas dispensing
0 .____.
Continued system is furnished. The RESERVE position indicates
Next Column that the gas cylinder is full and is in a stand-by condi-
tion. When the operating tank is exhausted, its status
'Not specifically discussed in this Bulletin lever moves to EMPTY and the reserve tank status
3

' k>. . , 5�s�, ' S t �f-t��r'a T_..•r /r. r a - L ..
1 vr` f`f �'�''#`Y- --#tt9."'�'E�.-� a'�1S -.'', •�,w'Y'�.e��y^`,'Mt'a, " 4,....;...,0-.1k4
Y
0
NOTES
I- DIMENSIONS ARE IN INCHES,UNLESS OTHERWISE SPECIFIED. 5. ADAPTOR PROVIDED FOR REMOVAL OF FILTER.
,410
2. IONSIN PARENTHESES( )ARE IN MILLIMETERS-
THIS D6. FOUR 5/16 l8) WIDE SLOTS PROVIDED FOR WALL MOUNTING.MOUNTING
3. THIS DRAWING IS THIRD ANGLE PROJECTION AS SHOWN Q HOLE LOCATIONS ARE GIVEN IN THE INSTRUCTIONS BELOW.
4. HEATER FURNISHED WITH 10 FOOT(3 m) CORD AND 3 PIN PLUG. 7. 2-INCH(51) DIAL GAS PRESSURE GAUGE W/CHEM.PROTECTOR WHEN
120 V,60 Hz,SINGLE PHASE REQUIRED TO OPERATE HEATER. SPECIFIED.
9-3/16 VENT CONNECTION
RATE VALVE GAS pnLET 12331
FOR 5/8 0D 11/2 10)TUBING 9-3/16
VENT CONNECTION CONNECTION I 6-11/16 5` 12331
FOR 5/8 OD FOR 318 00 I 11701 .,ISEE NOTE 71 11271 I 6-9/16 1
11/2 IDI TUBNGV 11/2 I01 TUBING /i t1701�!-iSEE NOTE Ti
I-1/2 1127) FLOWUETER I ;'�' 1• `�",/ 13116
(38) n I i I 13/16 1 1211
• - 1211 t-U21381I �`- a-EE NOTE SI
1 141 /' •
r ! -_`= I ISEE NOTE SI 1_ ✓1
6-LB — _ -- I I-7 - i
r6zl I '
9-1/2 3 18-1/16 6-IN -- �, i 3 '8-1l16
U591 '� l2a0 �—. t I761 1aS91 •11591 1 2-3/8 E I761 14591
i 1 I 1601 •
p yl 1 L 13-5/8 1 t-U213B1
J- I V21381 1 t1s61
STATUSI (SEE NOTE Ni STATUS L'QlRO I�t I \,I (SEE NOTE 61
LEVER I
rCMi�CALI LEVER CHEMIUL I \ I 10-1/2 I • '\3N WTI GAS
t0.1/2 3/4 NPTI GAS TRAP
TRAP ` I 12671 I WET CONNECTON
12671 *ET CONNECTION
1 MTN SIPES) I 1 I I SIOE51
NEATER MITN C 14Di I�• i
8-11/16 I8-U8 ,GAS CUTLET CONNECTION .EATER WITH CORD
(SEE NOTE al FOR 5.8 0011/2IDI TUBNG
12211 12061 IFELO INSTALLED/ "-cirri I
-`• (SEE NOTE 41
Gl 272I-2 / 11681
WITH FLUSH MOUNTED FLOWMETER-RATE VALVE WITHOUT FLUSH MOUNTED FLOWMETER-RATE VALVE
MOUNTING INSTRUCTIONS
GENERAL 2. Provide four threaded openings to accept 114-20 hex
head cap screws. Slip a washer over each screw and
One of the gas inlet connections is fitted with a plug. The install the screws through the 5/16" wide mounting
1111— plug can removed and installed in the opposite side i it slots in the manifold.
is not convenientbev (when mounting on a wall) or possible
(when mounting on the gas valve of a ton container)to use 3. Connect the gas supply to the manifold as illustrated
the open connection as supplied. If the plug is relocated, and described in Figure 12.
reseal the threads using a mixture of litharge and gylcerine
(or teflon tape). ADAPTING THE MANIFOLD FOR MOUNTING ON
MOUNTING ON A WALL THE GAS VALVE OF A TON CONTAINER
sa.
2-1/4A91 1 WASHER(4) GAS
(57) CAP SCREW(4) STUD INLET
f21
- l/.fl(O; YOKE SBAR \- �,
,S PLATE l /. I a
�`' NUT V v2 1
0�_.. ...........„ ._ YOKE v�' ,7'-'
3 a SCREW
\l\
(76) '
y ? �\l\\\\1\1D� MANIFOLD
it • L... t 11��` MANIFOLD-TO-CONTAINER
��1� VALVE ADAPTOR
THREADED ,I FITTING
OPENINGS(4)
SI3.70-2
MANIFOLD
sr-5529 1. Install the adaptor fitting in the gas inlet. applying a
mixture of litharge and glycerine(or teflon tape)to the
threads to provide a perfect seal.
2. Install the studs,slip on the slide bar,attach the yoke
1. Mount vertically plumb on a wall (or other suitable plate and affix the yoke screw.
surface) at a convenient height for setting the rate
,` valve and reading the flowmeter if flush mounted 3. Mount the complete assembly on the gas valve of the
�� and/or making the connections to the manifold and ton container as illustrated and described in Figure
regulator. 11.
FIGURE 7. WALL OR TON CONTAINER MOUNTED VACUUM REGULATORS

, J +
• APPENDIX IA
VACUUM LINE(S)—LIMITS OF EXTENSION
0
The vacuum line(s) connecting the regulator(s) to
the ejector(s), either directly or indirectly, (via one or 1-- ''
more wall mounted flowmeter, must not exceed the
distance(s) presented in Figures 14 through 16 and a B"
the use of the factors provided in Table B, if ap-
• '6
plicable. REGULATOR FLOWMETER- EJECTOR
RATE VALVE IS)
SI.5331
NOTE VOTES:
1. FOR SINGLE REGULATOR SYSTEMS, DISTANCE "A• IS ZERO
The graphs in Figures 14 through 16 are for WHEN THE FLOWMETER-RATE VALVE ASSEMBLY IS MOUNTED
Gas Dispensing Systems in which the inter- ON THE SIDE OF THE REGULATOR.
connecting vacuum line(s) are the normal- 2. FOR DUAL REGULATOR SYSTEMS, DISTANCE °A" IS THE LENGTH
ly specified 5/8 inch (5/8" OD x 1/2" ID) OF THE VACUUM LINE WHICH EXTENDS FROM THE FURTHEST
flexible tubing. If the required gas flow REMOTE MOUNTED REGULATOR TO THE FLOWMETER-RATE
VALVE(S).
rate(s) exceed the maximum allowable
limits as determined by the graphs (and
factors, if applicable), 3/4 inch (or larger) FIGURE 13. PICTORIAL REPRESENTATION
schedule 80 PVC piping must be used in OF THE REFERENCED DISTANCES
the construction of all (or portions of) the PLOTTED IN FIGURES 14 THROUGH 16
vacuum line(s). In such instances, it will be
necessary to contact the supplier from • Example A •
whom the Gas Dispensing System was pur System: Single regulator type with flush mounted
chased for technical assistance. flowmeter-rate valve assembly having a maximum
® capacity of 100 lb/d (2 kg/h).
The following examples demonstrate the use of the Determination: (Refer to Figures 13 and 14.) Since
graphs (and factors) for determining the maximum Distance "A" is zero, the vacuum line between the
allowable transport distance(s) for chlorine Gas flowmeter-rate valve assembly and ejector (Distance
Dispensing Systems. Determinations establishing the B") can be extended to anydistance up to 720 feet.
maximum allowable transport distance(s) for sulfur
dioxide and ammonia Gas Dispensing Systems are • Example B •
made in an identical manner by simply referencing System: Single or dual regulator type with one wall
Figures 15 and 16 respectively. The factors provided mounted flowmeter-rate valve assembly having a
in Table B, which constitute interrelated split flow maximum capacity of 300 lb/d (6 kg/h).
proportionality factors, are independent of the par-
ticular gas in question. Therefore, they apply"across- Determination: (Refer to Figures 13 and 14.) The
the-board" for determining the "B" distances for vacuum lines between the single or furthest remote
either chlorine, sulfur dioxide or ammonia split flow mounted regulator, as applicable, and the flowmeter-
type Gas Dispensing Systems. rate valve assembly (Distance"A")and the flowmeter-
MAXIMUM CAPACITY OF INDIVIDUAL FLOWMETER-RATE
SYSTEM CAPACITY VALVE ASSEMBLIES
Ib/d (kg/h) Ib/d (kg/h)
50 (1) 100 (2) 200 (4) 250 (5) 300 (6) 500 (10)
50 ( 1) 1.00 _
100 ( 2) 3.34 1.00
200 ( 4) 11.08 ( 3.31 1.00
0 250 ( 5) 16.35 I 4.89 1.48 1.00
300 ( 6) 22.26 6.66 2.01 1.36 1.00
500 (10) 54.64 16.34 _ 4.93 3.34 2.45 1.00
TABLE B. DISTANCE "B" FACTORS
27

APPENDIX /o/-
•. M•..r N.= == � IL; iIL1J1Ii !1
0
=T
_ -i_ THIS GRAPH APPLICABLE TO
- `•..MME E.. 1. -1000 1 -� -� 100 Ib/d (2 kg/h), OR LESS.
Ilk :Lt—_:= ,._
ICOMMYMOIMIIINIMENIM
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- Isi
300 —� =iE� � --- � MIMEO
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IIMMIIMIIIMEMME
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w L' Brill 1 =O •N=BM w=0= VALUES ADJACENT TO _ai
rm .moor•.. — •r••r.�=_.w
"'r :T __ s �' y" : w� CURVES REPRESENT
Q 100 ��,y r"'�� •..� ��—w• SYSTEM CAPACITY IN
I' � � - M� lim POUNDS PER DAY AND
cn � pv'O g� •'r•r�:Si PO
0 �:.. { • w.._� m/rC.m:�: r. y ��=-.wM• (KILOGRAMS PER HOUR)
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0
,4 0 40 80 120 160 200 240 280
d SI 5537-2 DISTANCE "B° IN FEET USING 5/8 INCH (5/8 OD X 1/2 ID) TUBING
FIGURE 14. VACUUM LINE(S) LIMITS OF EXTENSION VS. MAXIMUM SYSTEM
CAPACITY FOR CHLORINE GAS DISPENSING SYSTEMS
29

r , r
To: Permits and Engineering Unit
Water Quality Section
Date: October 30, 1995
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
County: Iredell
Permit No. NC0031836 (ACA031836)
PART I - GENERAL INFORMATION
1. Facility and Address: Fourth Creek Wastewater Treatment Plant
City of Statesville
PO Box 1111
Statesville,NC 28766
2. Date of On-Site Investigation(if conducted): October 24, 1995
3. Report Prepared By: Todd St. John
4. Persons Contacted and Telephone Number: N/A
5. Verified Discharge Point(s), List for All Discharge Points:
Latitude: 35° 46' 36" Longitude: 80°47' 15"
Attach a USGS map extract and indicate treatment facility site and discharge point on
map. Ensure discharge point(s) correspond to NPDES permitted discharge points.
USGS Quad No.: D15SE USGS Quad Name: Statesville East,NC
6. Size (land available for expansion and upgrading): Appears to be adequate area for
expansion.
7. Topography (relationship to flood plain included): The sludge drying area will be at the
same grade as adjacent facilities. These facilities do not appear to be in the 100 year flood
plain.
8. Location of Nearest Dwelling: greater than 500 feet
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS

1. Type of Existing Treatment Facility: WWTP •
2. Type of Proposed Treatment Facility: sludge drying area with roof
3. Sludge Handling and Disposal Scheme: Sludge is currently being disposed of in an on
site landfill or being treated with the N-Viro Soil Process for distribution.
4. Treatment Plant Classification (attached completed rating sheet): IV (proposed facility
will not change WWTP classification.)
5. SIC Code(s): 4952
Wastewater Code(s):
Primary: 01
Secondary:
Main Treatment Unit Code: 05002
PART III - EVALUATION AND RECOMMENDATIONS
The subject sludge drying area will be located adjacent to existing sludge drying beds. It is
recommended that the authorization to construct be granted.
/7:1
Signature of Report/ reparer
Water Quality Regional Supervisor
Date
r ,

' w
State of North Carolina \j
Department of Environment,
Health and Natural ResourcesA
Division of Environmental Management 7 " l
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary I F
A. Preston Howard, Jr., P.E., Director Eisrv-wo. ;TH.
S�v & NATURAL RI? :)IJRCES
0, September 26, 1995
{1- MR JOE HUDSON DIVISIUN OF Ei?il!��'�+' ' �?`NT
CITY OF STAl'bSVILLE MOORESV�+t: ,� ��'����' ���^��
PO BOX 1111
STATESVILLE, NORTH CAROL .A 28166
Subject: Application No. ACA031836
W WTP/Sludge Drying Beds
Authorization To Construct
Iredell County
Dear MR HUDSON:
The Division's Permits and Engineering Unit acknowledges receipt of your permit application and
supporting materials on September 26, 1995. This application has been assigned the number listed
PLEASE REFER TO THE ABOVE WATER QUALITY NUMBER W 1EN MAILING
INQUIRES ON THIS PROJECT.
Your project has been assigned to Susan Wilson for a detailed engineering review. Should there be any
questions concerning your project, the reviewer will contact you with an additional information letter.
Be aware that the Division's regional office, copied below, must provide recommendations from the
Regional Supervisor or a Procedure Four Evaluation for this project, prior to final action by the
Division.
If you have any questions, please contact Susan Wilson at(919) 733-5083 extension 555. If the
engineer is unavailable, you may leave a message on their voice mail and they will respond promptly.
Please reference the above application number when leaving a message.
Sincerely,
Gam' 00.0-0
Carolyn
M�Caskill
Supervisor, State Engineering Review Group
cc:
Hazen & Sawyer
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 9 i 9-733-7015
An Equal Opportunity Affirmative Action Employer

HAZEN AND SA\WER Hazen and Sawyer,P C.
4011 WestChase Blvd.
RaleigEnvironmental Engineers & Scientists 9198 3-7152607
919 833-7152
• Fax:[phone]
September 21 , 1995
Mr. Donald L. Safrit, P.E., Supervisor
Permits and Engineering Unit
Water Quality Section
N.C. Division of Environmental Management
Post Office Box 29535
Raleigh, NC 27626-0535
Re: Fourth Creek Wastewater Treatment Plant
Sludge Drying Area
Statesville, NC
H&S No. 3239
Dear Mr. Safrit:
Please find enclosed a check in the ount of $200.00 for theen111.1110 drawings and w
specifications have previously been submitted for your review and subsequent c,,,, �',
approval of an Authorization to Construct. 4. 3;"
�„
If you have any questions or need additional information, please contact Ms. rr,9!.:
J.C. Eder or me at telephone number [phone]. _ 3r
Very truly yours,
HAZEN AND SAWYER, P.C.
Benja in L. Roach, PE
Associate
BLR/sbr
Enclosure
cc: Ms. J.C. Eder
New York,NY• Armonk,NY • Upper Saddle River,NJ•Raleigh,NC•Charlotte,NC •Richmond,VA•Hollywood,FL•Boca Raton,FL•Fort Pierce.FL•'.oiter,FL•Miami,FL•Bogota.D.E.Colombia