NC0056201_Authorization to Construct_20031113

Permit No. NC0056201
Countryside Communities WWTP
Page 3
Engineer's Certification — Project Number 00562012A01
I, Harold Jensen , 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 Project, WWTP Improvements, Countryside MHP for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in
the observation of the following installations:
• Dual 12.57 sq.ft. sandfilters;
• An aluminum flow splitter box;
• Dual Ebara backwash pumps (Model 50DWXFU61.5S, 2HP, 3600 RPM, 2"
solids);
• Fiberglass baffled tank;
• 6" filtered effluent line to tablet chlorinator
• 6" backwash return line to influent pump station;
• End of backwash return line downturn (noted on plans) at influent pump
station; and
• All necessary piping and appurtenances.
Signature
Date November 12, 2003
Mail Certificate to the
%t `C A R
0 e.OF ESS S Qs, 1,/
ti.9;9 $
0.
Registration No. NC 11933
NPDES Unit
DENR/DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617

Jensen Environmental Consultants.
P.O. Box 2245
Jamestown, NC 27282
336-889-5650
TRANSMITTAL LETTER
P.A.
DATE:
November 12, 2003
ATTENTION:
RE:
Countryside MHP
0056201A01
NPDES Unit
DENR/DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617
WE ARE
SENDING YOU:
Attached
Under separate cover
Shop Drawings
Copy of Letter
via the following items:
X
❑
❑ Prints Drawings ❑ Reports
❑ Specifications
Change Order
Contracts
Other
Copies
Date
No.
Description
1
Engineer's Certification
THESE
ARE TRANSMITTED as
For approval
For your use
As requested
For review and comment
Resubmit copies
checked below:
Item
Approved
Furnish as Corrected
Revise and Submit
Rejected
for approval Submit Specific
COMMENTS:
COPY:
�
/1l`Lrdi� �/ Signed: 7i/
Page 1

August 15, 2003
CERTIFIED MAIL NO. 7002-2410-0005-2713-8815
RETURN RECEIPT REQUESTED
Mr. Michael Power
Countryside Communities. LLC
1423 Great Neck Road
Suite 205
Virginia Beach, Va 23454
Subject:
Dear Mr. Power:
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
AUG 2 2
Authorization to Construct Permit
ATC Number 0056201A01
Countryside Communities WWTP
NPDES Permit NC0056201
Randolph County
A request for an Authorization to Construct (ATC) was received by the Division and final plans and
specifications for this project have been reviewed and found to be satisfactory. Authorization is hereby granted
for construction of facilities at the above referenced facility. Specifically, this Authorization to Construct permits
the construction of a tertiary treatment system including the following:
• Dual 12.57 sq.ft. sandfilters;
• A stainless steel flow splitter box;
• Dual Myers 3WHV backwash pumps (2 hp, 1750 rpm, 3" discharge, 2.5" max solids):
• Fiberglass baffled tank;
• 6" filtered effluent line to tablet chlorinator and chlorine contact chamber;
• 6" backwash return line to influent pump station;
• End of backwash return line downturn (noted on plans) at influent pump station; and
• All necessary piping and appurtenances.
This Authorization to Construct is issued in accordance with NPDES Permit No. NC0056201 issued
May 1, 2000, and shall be subject to revocation unless the wastewater treatment facilities are constructed in
accordance with the conditions and limitations specified in the permit.
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 may 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 [phone], 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
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h20.enr.state.nc.us/NPDES

Permit No. NC0056201
Countryside Communities WWTP
Page 2
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 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 approved plans and specifications shall be maintained on file by the Permittee for the life
of the facility.
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 27699-1617.
One (1) set of approved plans and specifications is being forwarded to you. If you have any questions or
need additional information, please contact Mr. Corey Basinger, telephone number [phone], extension
263.
Sincerely,
-6/an W. Klimek, P.E.
cc: Central Files
NPDES Unit, Permit File
Winston-Salem Regional Office. Water Quality
Technical Assistance and Certification

Jensen Hnvironmental Consultants, P.A.
P.O. Box 2245 Jamestown, NC 27282 336-889-5650
July 1, 2003
Dept. of Environment and Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh NC 27699-1617
Dear Sirs:
Please find enclosed three copies of the plans and specifications for the construction of
improvements to the Countryside Mobile Home Park Wastewater Treatment Plant NPDES
Permit No. NC0056201. No increase in flow or modifications to the discharge limits are being
requested for this submittal.
We respectfully authorization to construct the following improvements to the Countryside
Mobile Home Park wastewater treatment plant.
1. New dual sand filters consisting of two 12.57 square foot sand filters and two
backwash pumps.
2. Interconnecting piping, backwash return piping and filtered effluent piping.
The design calculations are included with the specifications as well as a construction
sequence. Minimal disruption to the plant flow will occur.
If you have any questions or need any addition information, please contact me.
C: Michael Power
JUL - 3 2003

Wastewater Treatment Plant Improvements
For
Countryside
Mobile Home Park
Design Notes
June, 2003
Jensen Environmental Consultants, P.A.
P.O. Box 2245
Jamestown, NC 27282-2245
336-889-5650

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Figure 16.9. Minimum backwash rates for a bed expansion of 10% at
26°C (77°F) (gpmisq ft x 2.444 = mlh).
Backwash Rates, gpm/sq ft
50
0
30
20
10
0.25 0.5 0.7'f 1 1.5 2 2.5
Media Size, mrn

Figure 16.14. Typical clean water head Toss development curve for
granular media filter (ft x 0.304 8 - m; gpmisq ft x 2.444 =
mlh).
Filler Head Loss, It
5
4
3 --
2
D,T
4 6 8 10 12
Filtration Rate/ gpm/sq ft

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Lotus 2.4 2/9/94
SYSTCRV3.WK1 & SYSTCRV3.FMT
PROJECT: Countryside MHP Sand Filters
SYSTEM: Backwash Pumps
ISC ELEV PUMP
UCT ELEV ir
C/L ELEVATION
STATIC SUCTION HEAD 3 00
SYSTEM CURVE CALCULATIONS
TOTAL FLOW(gpm)
(MGD)
STATIC HEAD:
0.07
2.00
0.11
2.00
0.14
2.00
0.18
2.00
0.22
2.00
0.25
2.00
UCTION TO PUMP #1 SEGMENT FLOW gpm
FLOW RATIO:
DIAMETER (in):
111111 LENGTH: ft. C:
Entrance 1 @ 1.00
@ TOT K= 1.00
VEL fps
V HD ft
H/1000 ft
HD L ft
ACCUM H ft
50 75 100 125 150 175
5.11 7.66 10.21 12.77 15.32 17.87
0.40 0.91 1.62 2.53 3.64 4.96
53.12 112.56 191.75 289.87 406.30 540.53
0.46 1.02 1.81 2.82 4.05 5.50
2.46 3.02 3,81 4.82 6.05 7.50
ISCHARGE FROM PUMP #1
SEGMENT FLOW gpm 50 75 100 125 150 175
FLOW RATIO:
DIAMETER (in): LENGTH: 1E ft. C:
Bend 90 2 @ 0 57
Tee 1 @ 1 14
Plug Valve 1 @ 0.34
1 @ TOT K= 2.62
VEL fps
V HD ft
H/1000 ft
HD L ft
ACCUM H ft
5.11 7.66 10.21 12.77 15.32 17.87
0.40 0.91 1.62 2.53 3.64 4.96
53.12 112.56 191.75 289.87 406.30 540.53
1.86 4.08 7.12 10.98 15.64 21.10
4.32 7.10 10.93 15.80 21.69 28.61
ISCHARGE FROM PUMP # 1 TO SEGMENT FLOW gpm 25 38 50 63 75 88
FLOW RATIO:
DIAMETER (in):
LENGTH: ft. C:
Tee 1 @ 1.14
TOT K= 1.14
VEL fps
V HD ft
H/1000 ft
HDLft
ACCUM H ft
2.55 3.83 5.11 6.38 7.66 8.94
0.10 0.23 0.40 0.63 0.91 1.24
14.72 31.18 53.12 80.30 112.56 149.74
0.13 0.29 0.51 0.80 1.15 1.56
4.45 7.39 11.45 16.60 22.84 30.17
ISCHARGE FROM PUMP # 1 TO SEGMENT FLOW gpm 5 8 10 13 15 18
FLOW RATIO:
DIAMETER(in): LENGTH: ft. C:.1111 VEL fps 0.51 0.77 1.02 1.28 1.53 1.79
Exit 1 @ 1.00 V HD ft 0.00 0.01 0.02 0.03 0.04 0.05
@ H/1000 ft 0.75 1.58 2.70 4.08 5.71 7.60
@ HD L ft 0.01 0.01 0.02 • 0.03 0.05 0.06
@ TOT K= 1.00 ACCUM H ft 4.45 7.40 11.47 16.63 22.89 30.23

Countryside and Birmingham Place MHP Backwash Pumps
iu. uu
50.00
30.00
20.00
M.00
33
29
26
_
"---'-" -_0
23
10.00
--s-16
0.00
50
75
100
125
150
1"
Flow ( gpm)
— Pump Curve
-s- Meyers WHR10
--A-Meyers 3WHV
-e-Meyers MW150
23
-e- 4
5

County Side MHP Sand Filter Effl. Piping
Haestad Methods FlowMaster I version 3.15
Circular Channel: Manning's Equation
Comment: Sand Filter Effluent Piping
Solve For Actual Slope Required for Q=0.70 cfs
Diameter
Slope
Manning's n...
Discharge
Depth
0.50 ft
0.0002 ftlft
. 0.013
0.07 cfs
0.50 ft
Comment: Sand Filter Effluent Piping
Velocity 0.36 fps
Flow Area 0.20 sf
Critical Slope 0.0071 ft/ft
Critical Depth 0.13 ft
Percent Full.. 100.00 %
Froude Number. FULL
Full Capacity. 0.07 cfs
QMAX @.94D.... 0.08 cfs
Solve For Actual Depth Q=0.07 cfs and S=.0020 ft/ft
Diameter
Slope
Manning's n..
Discharge
Depth
0.50 ft
0.0200 ft/ft
.. 0.013
0.07 cfs
0.10 ft
Velocity 2.49 fps
Flow Area 0.03 sf
Critical Slope 0.0071 ft/ft
Critical Depth 0.13 ft
Percent Full.. 20.07 %
Froude Number. 1.66
Full Capacity. 0.79 cfs
QMAX @.94D.... 0.85 cfs