NC0040266_Permit (Issuance)_20130412

NPDES DOCUHENT SCANNINO COVER SHEET
NPDES Permit:
NC0040266
Knightdale Estates WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Approval
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 12, 2013
This document is printed on reustie paper - igtrtore arty
content on the re'rertce side

A7A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E. John E. Skvarla III
Governor Director Secretary
April 12, 2013
Mr. Harvey Murphrey
Knightdale Estates MHP LP
808 Eagle Rock Rd
Wendell, N.C. 27591
Subject: Issuance of NPDES Permit NC0040266
Knightdale Estates MHP WWTP
Wake County
Class WW-2
Dear Mr. Murphrey:
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to
the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between
North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended).
This final permit includes no major changes from the draft permit sent to you on January
30, 2013. We cannot grant your request to remove condition A. (4). The most recent site inspection noted
that solids management at your facility is inadequate for permit compliance.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this
decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or permits
required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or Local
governmental permit that may be required. If you have any questions concerning this permit, please
contact Charles Weaver at telephone number [phone].
Charles Wakild, P.E.
cc: Central Files
Asheville Regional Office / Surface Water Protection
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / http://portal.ncdenr.org/web/wq
One
NorthCarolina
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Permit NC0040266
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Knightdale Estates MHP Limited Partnership
is hereby authorized to discharge wastewater from a facility located at the
Knightdale Estates MHP WWTP
Hodge Road (NCSR 2516)
Knightdale
Wake County
to receiving waters designated as an unnamed tributary to the Neuse River in subbasin 03-04-02
of the Neuse River Basin in accordance with effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III, and IV hereof.
This permit shall become effective May 1, 2013.
This permit and authorization to discharge shall expire at midnight on February 28, 2018.
Signed this day April 12, 2013.
Ch akild, P.E., Director
Di •ion of Water Quality
By Authority of the Environmental Management Commission

Permit NC0040266
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked.
As of this permit issuance, any previously issued permit bearing this number is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, requirements, terms, and provisions included herein.
Knightdale Estates MHP Limited Partnership is hereby authorized to:
1. Continue to operate an existing 0.025 MGD wastewater treatment facility that includes the
following components:
• Influent pump station
• Manual bar screen
• Aeration basin
• Secondary clarifier
• Aerobic digester [2500 gallons]
• Dual sludge storage tanks [1200 gallons each]
• Tablet chlorine disinfection
• Chlorine contact chamber with air diffuser
• Tablet dechlorination
• Post aeration
• Effluent flow meter [ISCO 3230]
This facility is located at the Knightdale Estates MHP WWTP off Hodge Road near Knightdale
in Wake County.
2. Discharge from said treatment works via outfall 001 into an unnamed tributary to the Neuse
River, currently classified C-NSW waters in hydrologic unit 03020201 of the Neuse River
Basin, at the location specified on the attached map.

A; 74:A.2 \t A ItelLtr--
a,Aloimes
NC0040266 - Knightdate Estates MHP
Latitude: 35° 46' 35" N USGS Quad:
Longitude: 78° 30' 30" W Sub -Basin:
Stream Class: C-NSW River Basin:
Receiving Stream: UT to Neuse River
Raleigh East
03-04-02
Neuse
it
Facility
Location
Wake County
Map not to scale

Permit NC0040266
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge treated wastewater from outfall 001. Such discharges shall be limited and
monitored by the Permittee as specified below:
MONITORING REQUIREMENTS
EFFLUENT LIMITATIONS
PARAMETER
[PCS CODE]
,, �
Monthly
Average
... T2l t. "b'�
Daily
� i r
i Maximum
i�Yr"
t `Measurement
Sample
d 7 .
} • Type,
l 'b-1 'F=� l:
', Sample
. ,
Location'
-,
_ _ . � . , ...'
t .Frequiengy•
� .'-�
•� �*�'�
Flow [50050]
0.025 MGD
Continuous
Recording
Effluent
Total Monthly Flow (MG)
Monitor and Report
Monthly
Recorded or
Calculated
Effluent
BOD, 5-day, 20°C [00310]
(April 1- October 31)
27.0 mg/L
40.5 mglL
Weekly
Grab
Effluent
BOD, 5-day, 20°C [00310]
(November 1— March 31)
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
Total Suspended Solids [00530]z
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
NH3 as N [00610]
(April 1- October 31)
4.8 mg/L.
24.0 mglL
Weekly
Grab
Effluent
NH3 as N [00610]
(November 1- March 31)
21.7 mg/L
35.0 mglL
Weekly
•
Grab
Effluent
Total Residual Chlorine3 [50060]
28 pg/L
2/Week
Grab
Effluent
Fecal Coliform [31616]
(geometric mean)
200/100 mL
400/100 mL
Weekly
Grab
Effluent
pH [00400]
> 6.0 and < 9.0 standard units
Weekly
Grab
Effluent
Dissolved Oxygen [00300]
Daily average > 5.0 mglL
Weekly
Grab
Effluent
Dissolved Oxygen [00300]
Weekly
Grab
U & D
Temperature (°C) [00010]
Daily
Grab
Effluent
Temperature (°C) [00010]
Weekly
Grab
U & D
TKN (mg/L)4 [00625]
Monitor and Report
Monthly
Grab
Effluent
NO3-N + NO2-N (mg/L)4 [00630]
Monitor and Report
Monthly
Grab
Effluent
Total Nitrogen (mg/L)4 [00600]
Monitor and Report
Monthly
Grab
Effluent
Total Nitrogen Loads
[QM600 monthly]
[QY600 annual]
Monitor and Report (pounds/month)
Monthly
Calculated
Effluent
Report (pounds/year)
Annually
Calculated
Effluent
Total Phosphorus [00665]
. - Monthly
Grab
Effluent
Notes:
1. U: at least 50 feet upstream from the outfall. D: at least 200 feet downstream from the outfall.
2. If solids management at the facility is deemed inadequate, this permit may be reopened to increase TSS
monitoring to 3/Week (see A. 4).
3. The facility shall report all effluent TRC values reported by a NC certified laboratory (including field certified
laboratories). However effluent values < 50 µg/L will be treated as zero for compliance purposes.
4. For a given wastewater sample, TN = TKN + NO3-N + NOz-N, where TN is Total Nitrogen, TKN is Total Kjeldahl
.Nitrogen, and NOa-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
5. Total Nitrogen Load is the mass quantity of Total Nitrogen discharged in a given period of time [see A. (2)
Calculation of Total Nitrogen Loads].
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0040266 •
A.(2.) CALCULATION OF TOTAL NITROGEN LOADS
a. The Permittee shall calculate monthly and annual Total Nitrogen (TN) Loads as follows:
i. Monthly TN Load (pounds/month) = TN x TMF x 8.34
where:
TN = the average Total Nitrogen concentration (mg/L) of the composite samples
collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the month
(MG/month)
8.34 = conversion factor, from (mg/L x MG) to pounds
ii. Annual TN Load (pounds/year) = Sum of the 12 Monthly TN Loads for the calendar
year
b. The Permittee shall report monthly Total Nitrogen results (mg/L and pounds/month) in the
Discharge Monitoring Report (DMR) for that month and shall report each year's annual
results (pounds/year) in the December DMR for that year.
A. (3) TOTAL NITROGEN ALLOCATIONS
a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred
to the Permittee in accordance with the Neuse River nutrient management rule (T15A NCAC 02B
.0234) and the status of each as of permit issuance. For compliance purposes, this table does not
supercede any TN limit(s) established elsewhere in this permit or in the NPDES permit of a
compliance association of which the Permittee is a Co-Permittee Member.
•
ALLOCATION AMOUNT (1)
ALLOCATION
TYPE
SOURCE
DATE
STATUS
Estuary
Discharge
(poundslyear)
(pounds/year),
Base
Assigned by Rule
12/7/1997
253
506
Active
(T15A NCAC 02B .0234)
; 4/1/2003
Footnote:
(1) Transport Factor = 10%
A. (4) SOLIDS MANAGEMENT REPORTS
The Permittee shall record solids depths in the clarifier(s) (using a sludge judge), sludge wasting
events, onsite sludge storage capacities, effluent TSS concentrations, and all sludge hauling
records (frequency and volume). This information must be documented for each ORC visitation at
the treatment facility. Solids data must be provided in a written report detailing how residuals
are appropriately managed.
• Reports must be submitted to NC DENR Raleigh Regional Office, Surface Water Protection
Section.
• Reports are due by June 30st and December 31st of each calendar year.

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E. John E. Skvarla, III
Governor Director Secretary
April 4, 2013
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
7012 1640 0001 9606 2991
Mr. Harvey Murphrey
Knightdale Estates MHP Limited Patnership
808 Eagle Rock Road
Wendell, NC 27591
Subject: Notice of Violation 2013 — PC - 0111
Compliance Evaluation Inspection
Knightdale Estates MHP WWTP
NPDES Permit No. NC0040266
Wake County
Dear Mr. Murphrey:
The subject inspection was performed on March 19, 2013 by Sara Knies and Ted Cashion of this
office, and Eric Green with the Wake County Environmental Services. Your cooperation and that of
Guido Carrara, ORC, was appreciated. Findings during the inspection were as follows:
1. The current NPDES permit expired on February 28, 2013. You submitted a permit renewal
application that the Division received on August 27, 2012. The permit application is under
review by the Division.
2. A review of lab data and DMR data for September and October 2012 showed that on October
18, 2012 the DMR result for TSS was 8.6 mg/1 but the lab report from Pace showed TSS at 86
mg/1. Mr. Carrara contacted Pace during the inspection and later emailed a corrected report
from Pace noting the TSS lab result as 8.6 mg/1 (instead of 86 mg/1).
A review of DMR data from January 2012 - December 2012 showed all monitoring was
performed as required by the permit. A daily maximum fecal coliform violation occurred on 8-
9-12. A daily maximum TSS violation occurred on 3-22-12. These violations were previously
addressed in separate Notices of Violation.
3. The package treatment plant is permitted at 0.025 mgd and consists of the following
components: manual bar screen, aeration basin with diffused air, primary and secondary
clarifiers, tablet chlorinator, chlorine contact chamber, ISCO 3230 bubbler flow meter with a
60° V-notch weir, continuous chart recorder, post aeration, tablet dechlorination, sludge
digester, and 2 above ground concrete sludge holding tanks. The discharge is to an unname4ne
No Carolina
aturallri
North Carolina Division of Water Quality 1628 Mail Service Center Raleigh, NC 27699-1628 Phone [phone]
Internet: www.ncwaterquality.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper
Customer Service
1-877-623-6748

Knightdale MHP
Page 2 of 5
tributary to the Neuse River, Class C-NSW. There is also a pump station that serves the
mobile home park. This station was inspected in August 2012 and was not inspected during this
inspection. The collection system consists of terra cotta pipe. It is recommended that
improvements to the collection system be implemented.
4. Mr. Murphrey stated 110 trailers can be tributary to the treatment plant. Of these, currently
there are 104 trailers connected, with 6 lots vacant. There are also 6 lots that are on septic tank
systems. The total number of trailers at the park is 116. Mr. Carrara followed up with our
office in a telephone call to note that the water system at the site has an ion exchange system to
remove radiological contaminants, and that the backwash from this system is discharged to the
wastewater treatment plant. The NPDES permit may be modified to reflect this backwash
waste stream that is tributary to the wastewater treatment plant.
5. Screenings from the manual bar screen are disposed of in a plastic drum and taken to the onsite
dumpster for pickup. The water level in the aeration basin was at a level that it appeared debris
on the bar screen could be washed off and into the aeration basin. Please make adjustments to
the bar screen or water level as needed to prevent debris from entering the treatment zone.
6. The aeration basin D.O. reading during the inspection was 3.66 mg/1. Mr. Carrara stated the
D.O. reading the previous day was 1.54 mg/1. He stated there is no valve to regulate the D.O. in
the aeration basin to keep a more consistent D.O., and that the air is on constantly and does not
cycle on and off. At the time of the inspection Mr. Carrara was blowing off excess air to reduce
the D.O. in the basin. The color of the mixed liquor appeared satisfactory for good operation of
the system. The foam on the surface of the aeration basin was not excessive, covering
approximately 20% of the basin surface. There appeared to be an excessive amount of
turbulence in part of the aeration basin. This can cause the floc to shear, causing undesirable
settling characteristics in the clarifier. It is recommended you investigate installing controls
on the aeration system to prevent excessive turbulence in the aeration basin. The diffused
air headers may need to be checked also to ensure the system is intact.
Mr. Carrara stated that in the past bristle worms have been present in this plant. When this
occurred, he stated these worms ate sludge and he was unable to waste any sludge from the plant.
Due to the nature and volume of flows experienced at the plant, you may wish to investigate
whether the addition of an aerated equalization basin to stabilize flows through the plant may
improve the operation of the plant.
7. A '/a pound bag of "Biobug F.P." is added in the aeration basin daily to control grease.
"SELFLOC 1832" (Southeastern Labs) is dripped in at the head of the aeration basin to promote
floc formation at a rate of one pound/2 days.
8. Mr. Carrara conducted a 30 minute settleometer test during the inspection. The 30 minute result
was 350 ml, with some suspended floc in the supernatant, and grease floating on the surface.
9. The primary and secondary clarifiers had some grease on the surface, with more grease on the
primary clarifier than the secondary clarifier. Two surface skimmers removed the grease from
the clarifiers and appeared to be operating satisfactorily. A sludge judge measurement showed
the sludge blanket to be 7 feet deep. The clarifier depth is 11 feet. Sludge blankets should be
no more than 1/3 the depth of the clarifier. Sludge blankets greater than 1/3 the depth of the
clarifier have an increased risk of solids being washed out and discharged to the receiving
stream. Pin floc was observed being discharged from the clarifier.

Knightdale MHP
Page 3 of 5
Please ensure residents in the mobile home park are aware that grease is not to be disposed of
down the drain.
10. There were 4 tubes of chlorine tablets prior to the chlorine contact chamber. A review of the
label showed the tablets were approved for wastewater disinfection.
11. A sludge judge measurement was performed in the chlorine contact chamber. There was a one
foot sludge blanket in the 3 foot depth contact chamber. Mr. Carrera stated the solids in the
contact chamber are pumped to the digester weekly. This amount of sludge accumulation in a 1
week period is an indicator that proper settling is not occurring in the clarifier, and/or a high
volume of solids are retained in the clarifier and are being carried over from the clarifier to the
contact chamber. As noted in item # 10, pin floc was observed being discharged from the
clarifier. Solids accumulated in the chlorine contact chamber have an increased risk of being
washed out and discharged to the receiving stream.
12. The ISCO 3230 bubbler flow meter was calibrated 10-2-12 by Atlantic Environmental. You are
reminded the flow meter must be calibrated at a minimum of once per year (365 days) and
maintained to ensure the accuracy is within 10% of the true flow rate.
13. The tablet dechlorinator was supplied with appropriate tablets.
14. The effluent appeared clear at the time of the inspection. A grab sample of the effluent was
taken during the inspection and analyzed for TSS. The lab result was 6.2 mg/1, which is within
permit limits.
15. Mr. Carrara stated that effluent grab samples are collected from the end of the discharge pipe on
Thursdays and that he transports the samples to Pace Labs.
16. The facility has a 2500 gallon aerobic digester, and two-1000 gallon above ground concrete
sludge holding tanks, for a total capacity of 4500 gallons. At the time of the inspection the
aerobic digester was approximately 'A full of sludge. The 2 sludge holding tanks were being
decanted to thicken the sludge. One of the 2 sludge holding tanks was full of sludge and was in
the process of being thickened. The other sludge holding tank had been thickened and was
approximately %2 full of sludge.
Mr. Carrara stated that Granville Farms hauls sludge from the plant every 2 weeks. He
explained that the practice is to lime stabilize the sludge in the digester, (where he documents
the pH and time), then to pump the lime stabilized sludge to the two above ground concrete
sludge holding tanks. However, as discussed during the inspection, the two sludge holding
tanks already contain a volume of sludge that has been wasted from the plant and has not been
lime stabilized. Adding the lime stabilized sludge from the digester to the unstabilized sludge
contained in the 2 sludge holding tanks does not constitute compliance with the 40 CFR
regulations for the sludge in the 2 holding tanks. The pH in the sludge holding tanks is not
documented. Therefore, the total volume of sludge in the 2 holding tanks has not been properly
lime stabilized, and is in violation of the 40 CFR 503 Standards for the Use and Disposal of
Sewage Sludge. Mr. Carrara stated he will modify his procedure to ensure all sludge has been
lime stabilized properly, and will begin to document the pH and holding time of the sludge in
each of the 2 sludge holding tanks to comply with the 40 CFR 503 requirements.

Knightdale MHP
Page 4 of 5
You may wish to consider adding a diffused air system in the sludge holding tanks to assist with
mixing the sludge and lime during stabilization of the sludge.
It is also recommended that additional sludge holding capacity be incorporated at the facility to
increase the current 2 week holding capacity, and to assist the facility in complying with the
vector attraction and pathogen reduction requirements noted in 40 CFR 503.
This office is aware that Poplar Creek subdivision, tributary to the City of Raleigh sewer system, is
being constructed off Poole Road in close proximity to your facility. Part III Section D of your NPDES
permit requires you to evaluate all wastewater disposal alternatives and pursue the most environmentally
sound alternative of the reasonably cost effective alternatives. Please investigate connection to the
City of Raleigh sewer system and inform this office of your intention to connect to the City of
Raleigh sewer system.
Please submit the following records and information to our office for review no later than May 8,
2013:
1. Sludge hauling and lime stabilization records for October 2012 — March 2013.
2. A copy of the chart recorder flow readings for October 2012 — March 2013.
3. A copy of the operator records, including sludge judge measurements, for October 2012 — March
2013.
4. Verify that lime stabilization of sludge is now being properly performed in the two sludge
holding tanks, and that pH and holding times are documented in all sludge holding tanks and the
digester, to ensure compliance with the 40 CFR 503 regulations.
5. Verify that operational procedures will be implemented to reduce the sludge blanket depth in the
clarifier to no more than 1/3 the depth of the clarifier.
6. Please inform this office of your intention to increase sludge holding capacity at the facility.
Please contact this office for any permitting modification/Authorization to Construct approvals
that may be needed with these plant additions.
7. Please inform this office of your intention to connect to the City of Raleigh sewer system.
Given the historical sludge management concerns at the facility and potential impacts to the receiving
stream, this office will careful review your written response as well as your efforts/intention to connect
to the City of Raleigh sewer system. Further, this office is also considering conducting a formal
stream impact assessment (in concert with DWQ's Environmental Science Section) to further
identify water quality impacts and the identification of stream standard violations that may be
coincident to the discharge and/or historic sludge management practices.
You are reminded to contact this office of any situation that potentially threatens public health or the
environment.
Thank you for your cooperation during the inspection and for your response to items 1-7. If you have
questions concerning this report please contact Ted Cashion at 919-791-4254.

Weaver, Charles
From: Cashion, Ted
Sent: Wednesday, February 20, 2013 7:57 AM
To: Weaver, Charles
Cc: Smith, Danny
Subject: RE: NC0040266 - permittee objections to special condition in the draft permit
Good morning Charles,
I checked the draft permit to see exactly what condition A(4) stated and pasted it below. This
information should be collected and retained by any ORC at any facility for proper operation, not
just at this facility.
The last CEI at the facility (Sept, 17, 2012), noted there were 7 feet of solids in the 11 foot deep
clarifier. The sludge blanket should be no more than 1/3 of the clarifier depth. Solids can escape
easily with too high of a blanket. There was also a high amount of suspended solids in the
clarifier. There was also a buildup of sludge in the chlorine contact chamber. NOV-2012-PC-
0300 was issued in part due to these findings.
These findings indicate poor operation of the facility at the time of the inspection. We
recommend the A(4) condition remain in the permit.
Let me know if you have questions.
Thanks
Ted
A. (4) SOLIDS MANAGEMENT REPORTS
The Permittee shall record solids depths in the clarifier(s) (using a sludge judge), sludge wasting records,
onsite sludge storage capacities, effluent TSS concentrations, and all sludge hauling records (frequency
and volumes). This information must be documented for each ORC visitation at the treatment facility.
Solids data must be provided in a written report detailing how residuals are appropriately managed.
• Reports must be submitted to NC DENR Raleigh Regional Office, Surface Water Protection
Section.
• Reports are due by June 30st and December 31st of each calendar year.
From: Weaver, Charles
Sent: Tuesday, February 19, 2013 9:48 AM
1

•
----Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test
Date:1/14/2011
Facility: Harnett County - Erwin WWTP
Laborato
x.7
Signature of Operator in Responsib Charge
. Meritech, Inc.
NPDES # NC00 64521
Signature of Laboratory Supervisor
,SL
ipe #: 001 County: Harnett
Comments'
MAIL ORIGINAL TO:
COPY
Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Initiation Date/Time 1/4/2011
Control
% Eft. Repl.
Surviving #
Original #
Wt/original (mg)
0.08
Surviving #
Original #
Wt/original (mg)
0.16
Surviving #
Original #
Wt/original (mg)
0.32
Surviving #
Original #
Wt/original (mg)
0.64
Surviving #
Original #
Wt/original (mg)
1.28
Surviving #
Original #
Wt/original (mg)
Water Quality Data
Control
pH (SU) !nit/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
High Concentration
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) init/Fin 25.2 / 24.4
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
'onductivity (umhos/cm)
Chlorine(mg/L)
Temp. at Receipt (°C)
Dilution H2O Batch #
Hardness (mg/L)
Alkalinity (mg/L)
:onductivity (umhos/cm)
1
2
12:05 PM
3
4
Avg Wt/Surv. Control
10
10
10
• 10
10
10
10
10
0.694
0.661
0.602
0.624
10
10
10
10 •
10
10
10
10 '
0.595
0.598
0.553
0.591
10
10
10
10
10
10
10
10
0.715
0.634
0.680.
. 0.593 '
10
10
10
10
10
10
10
10
0.654
0.567
0.727
0.612
10
10
10
10
10
10
10
10
0.596
0.553
0.696
0.626
10
10
. 10
10
10
10
10
10
0.674
0.590
0.588
0.646
Day
% Survival
Avg Wt (mg)
% Survival
Avg Wt (mg)
% Survival
Avg Wt (mg)
% Survival
Avg Wt (mg)
% Survival
Avg Wt (mg)
% Survival
Avg Wt (mg)
0.645
100.0
0.645
100.0
0.584
100.0
0.656
100.0
0.640
100.0
0.618
100.0
0.625
1
2
3
4
5
6
8.23. /
.8.05
8.26 /
8.11
8.30 /
8.09
8.26 . /
8.07
8.33 /
8.21
8.34 /
8.15
8.25 /
7.77
7.63 /
7.40
7.69 /
7.63
.7.65 /
7.53
7.69 /
7.25
7.50 /
7.46
7.78 /
7.63
7.77 /
7.65
25.2 /
24.4
24.8 /
24.3
24.5 /
24.2
.24.4 /
24.7
24.7 /
24.3
24.5 /
24.3
25.3 /
24.7
0
1
2
3
4
5
6
8.18 / 8.11
8.24 / 8.08
8.26 / 8.16
8.25 / 8.12
8.25 / 8.08
8.27 / 8.16
8.30 / 8.07
7.66 / 7.50
7.69 / 7.50
7.70 / 7.66
7.70 / 7.45
7.79 / 7.56
7.85 / 7.73
7.84 / 7.69
24.8 / 24.3
24.5 / 24.2
1
2
3
1/2/2011
1/4/2011
1/6/2011 '
24.3
24.0
-
24.0
138
• 118
104
178
152
131
655
632
615
<0.1
. <0.1
<0.1
0.8
0.5
0.2
LEI
1121
59
516
48
517
48
58
58
235
224 .
518
46
519
48
58
56
206
233
24.4 / 24.7
520
521
48
48
60
59
235
206
24.7 '/ 24.3
24.5 / 24.3 125.3 / 24.7
Survival Growth
Normal P1
Horn. Var. f PI
NOEC 1.28 1.28
LOEC >1.28 >1.28
. ChV >1.28 >1.28
Method Steel's Dunnet's
Test Organisms
Cultured In -House
E Outside Supplier
Hatch Date: 1/3/10
Hatch Time: 3:00 pm CT
Overall Result
ChV
>1.28
Stats
Conc.
0.08
0.16
0.32
0.64
Survival
Critical Calculated
10 18
10 18
10 18 •
10 18
Growth
Critical
2.41
2.41
Calculated
1.7263
0.2901
2.41 0.1486
2.41 0.7782
1.28
10 18
2.41
0.5872

Knightdale Estates MHP Limited Partnership
808 Eagle Rock Road
Wendell, NC 27591
919-669-2792
February 14, 2013
Charles H. Weaver, Jr., NPDES Unit
NCDENR, DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Draft NPDES Permit NC0040266
Knightdale Estates MHP WWTP
Class WW-2
Wake County
Dear Mr. Weaver:
This letter is in response to your letter of January 30 enclosing the above draft.
After seeking advice from our state certified and licensed operator, we hereby
reject the A. (4) Solids Management reporting condition that the Regional Office wants to
add.
Our plant is compliant and water going downstream out of the facility is cleaner than the
water upstream even though the collection system is not a state of the art, new plant. But
we feel this plant would be non -compliant with this A. (4) condition, resulting in major
penalty dollars having to be spent. Several years ago we had to pay thousands of dollars
because of operator errors. Now we have a very competent one and he says adding this
condition would be a huge mistake.
Thank you for your assistance in removing the A. (4) from this proposed permit.
Sincerely,
a'aIL-<-(5491114
Harvey Murphrey

AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA
COUNTY OF WAKE
Ad Number
0000369632
Advertiser Name. NCDENR/ DWQ/ POINT SOURCE
Address: 1617 MAIL SERVICE CENTER PROTECTION SECTION/ POINT
RALEIGH, NC 276991617
Before the undersigned, a Notary Public of Wake
County North Carolina, duly commissioned and
authorized to administer oaths, affirmations, etc.,
personally appeared TIM WINSLOW, who being
duly sworn or affirmed, according to law, doth
depose and say that he or she is Accounts
Receivable Specialist of The News & Observer a
corporation organized and doing business under
the Laws of the State of North Carolina, and
publishing a newspaper known as The News &
Observer, in the City of Raleigh, Wake County and
State aforesaid, the said newspaper in which such
notice, paper, document, or legal advertisement
was published was, at the time of each and every
such publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of
the General Statutes of North Carolina and was a
qualified newspaper within the meaning of Section
1-597 of the General Statutes of North Carolina,
and that as such he or she makes this affidavit; and
is familiar with the books, files and business of said
corporation and by reference to the files of said
publication the attached advertisement for
NCDENR/ DWQ/ POINT SOURCE was inserted in
the aforesaid newspaper on dates as follows:
01/31/2013
TIM WINSLOW, Accounts Receivable Specialist
Wake County, North Carolina
Public Notice
North Carolina Environmental
Management CommissiorVNPDES Unit
1617 Moil Service Center
Raleigh, NC 27699.1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina Environmental
Management Commission proposes to
issue a NPDES wastewater discharge
permit to the person(s) listed below.
Written comments regarding the pro-
posed permit will be accepted until 30
days after the publish date of this notice.
The Director of the NC Division of Water
Quality (DWQ) may hold a public hear-
ing should there be a significant degree
of public interest. Please mall com-
ments and/or information requests to
DWQ at the above address. Interested
persons may visit the DWQ at 512 N. Sal-
isbury Street, Raleigh, NC to review in-
formation on file. Additional information
on NPDES permits and this notice may
be found on our website: http://portal.nc
denr.org/web/wq/swp/ps/npdes/ca lender,
or by calling [phone]. River Mill
COA requested renewal of permit
NC0056278/River MITI WWTP/Wake
County. Facility discharges to the
Neuse River/Neuse River Basin. Cur
rentiy
fecal coliform and total residual chlor-
ine are water quality limited. Harvey
Murphrey requested renewal of NPDES
Permit N00040266/Knightdale Estates
MHP/Wake County. Facility discharges
to an unnamed tributary to the Neuse
River/Neuse River Basin.. Currently
BOD, ammonia nitrogen, dissolved oxy-
gen, fecal coliform, and total residual
chlorine are water quality limited.
N&O: January 31, 2013
to'ti) IHA ,,,,
NoioN Poprty
WoKec
=mac
Ali
i„°, rfH IC1P�\\\`N
Sworn to and subscribed before me
This 1st day of February, 2013
My Commission Expires: a f J')//,'
•-ALIun�
Notary Signature

Regional Office SWP Staff Report Form: I���VyVL�u ]ld I ICf1VI l LV 1L
All Permit Information should be verified against BIMs Permit Information, note any discrepancies and correction action needed.
Is all information in BIMs correct
correct lat/lon
Permit Number
NC0040266
Permittee
Knightdale Estates MHP LP
Facility Name
Knightdale Estates MHP WWTP
Regional Office
Raleigh
RO Contact person
Ted Cashion
Date
November 28, 2012
Facility Location 'Hodge
Equipment description
Road (NCSR 2516), Knightdale, NC 27545
influent pump st iior ( anual bar screeneration basin; secondary clarifiet, tab„let chlorinatio tablet dechlorination'
aerobic digestef. 2 - 1200 gallon septic tanks added to increase sludge storage -'.(post aeration. effluent flow meter L
Discharge Point(s):
Latitude -
35.75764
Longitude -
-78.50824
Waterbody(s):
Correct
Receiving Stream
UT to Neuse River
Stream Classification
C-NSW
River Basin
Neuse
Sub -basin
03-04-02
Stream Index
Effluent limits -
27-(22.5)
Correct
Toxicity
Review Permit Enforcement Case
List (July 2007-July 2012)
NA
LV-2009-0099, LV-2009-0251, LV-2009-0417, LV-2010-0337
Count and List the total number of
Enforcement Cases here:
Last inspection
Review Special Conditions:
Sludge Management Plans -
4
8/24/2012
The facility has added 2-1200 gallon septic tanks for sludge storage. During the last inspection, a 7 foot sludge blanket was
measured in the 11 foot deep clarifier. Sludge management may be an issue at this facility.
Engineering Structural Analysis
Engineering Alternatives
Assessment
Nutrient Management Plan
Wastewater Treatment
Management Plan
Other

Recommendations for renewal of
permit
/Comments/Additions/Deletions:
The RRO recommends the permit be reissued. The Permittee has installed 2 -1200 gallon septic tanks for sludge in addition
to the plants digester. Tablet dechlorination has been added since the last permit issuance. Post aeration is provided at the
end of the contact chamber. The RRO has no record of A to C's being issued for the 2 septic tanks and the post aeration
units. No primary clarifier is noted in the inspection report (it is noted in the permit application but it appears by the
Permittee's description it is after the aeration basin, making it a secondary clarifier). Please adjust the treatment unit
description in the permit to reflect the current units. The receiving stream is very small. It appears the limits are very relaxed
for this stream. Please confirm the 7Q10 and 30Q2 for this UT to the Neuse River and adjust limits as needed.
Due to solids depths observed during inspection the RRO request the following in the permit:
Please consider increasing the TSS monitoring (e.g. 3 times per week or greater) for the first two years of the
permit cycle.
Solids management plan and reporting. Record clarifier(s) solids depths (using a sludge judge), sludge wasting
records, onsite sludge storage capacities, effluent TSS concentrations, and all sludge hauling records (frequency
and volumes). This information must be documented for each ORC visitation at the treatment facility. A written
report must be provided every 6 months. This data must be provide and summarized in a written report detailing
how residuals are appropriately managed. (reports must be submitted to Raleigh Regional Office — Surface Water
Protection Section and are due by June 30st and December 31St) )
RRO Supervisor Signature:
- 1•

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require
full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile
home parks, etc) that can be administratively renewed with minor changes, but can include
facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing,
instream monitoring, compliance concerns).
Basic Information for Expedited Permit Renewals
Permit Writer/Date
Charles H. Weaver 11/14/2012
Permit Number
NC0040266
Facility Name
Knightdale Estates MHP
Basin Name/Sub-basin number
03-04-02
Receiving Stream
UT Neuse River
Stream Classification in Permit
C-NSW
Does permit need Daily Max NH3 limits?
No — already present
Does permit need TRC limits/language?
No — already present
Does permit have toxicity testing?
No
Does permit have Special Conditions?
Neuse nutrient conditions
Does permit have instream monitoring?
Yes — temperature and dissolved oxygen
Is the stream impaired (on 303(d) list)?
For what parameter?
No
Any obvious compliance concerns?
None
Any permit modifications since last permit?
None
New expiration date
2/28/2018
Comments on Draft Permit
Updated facility components, added nutrient
allocation special condition
Most Commonly Used Expedited Language:
• 303(d) language for Draft/Final Cover Letters: "Please note that the receiving stream
is listed as an impaired waterbody on the North Carolina 303(d) Impaired Waters List.
Addressing impaired waters is a high priority with the Division, and instream data will
continue to be evaluated. If there is noncompliance with permitted effluent limits and
stream impairment can be attributed to your facility, then mitigative measures may be
required".
• TRC language for Compliance Level for Cover Letters/Effluent Sheet Footnote:
"The facility shall report all effluent TRC values reported by a NC certified laboratory
including field certified. However, effluent values below 50 ug/1 will be treated as zero
for compliance purposes."

[Fwd: List of Neuse Basin Minor WWTP permits with missing text]
Subject: [Fwd: List of Neuse Basin Minor WWTP permits with missing text]
From: Mike Templeton <[e-mail]>
Date: Thu, 20 Nov 2008 10:49:02 -0500
To: undisclosed -recipients:;
PERMIT ACTION REQUIRED
We discovered this week that several permits for small Aqua NC facilities were given TN limits during their 2008
renewals (should have 'Monitor & Report' only for TN). This prompted Ron to review all permits for Neuse
dischargers < 0.5 MGD. Besides finding one other facility that got a limit by mistake, he found these three that did
not have the new special condition listing their TN allocations. Permit writers should add the special condition at the
next renewal or mod.
Original Message
Subject:List of Neuse Basin Minor WWTP permits with missing text
Date:Wed, 19 Nov 2008 10:02:24 -0500
From:Ron Berry <[e-mail]>
To:Mike Templeton <Mike.Templeton(cr�ncmail.net>
Mike,
Listed below are three permits that I found that do not have the Total
Nitrogen Allocations special condition.
1) NC0025712
-2) NC0040266
3) NC0061638
Ron
Town of Hookerton WWTP
Knightdale Estates MHP WWTP
Amherst WWTP
di,
11 /Yl1o/Z
1 of 1 11/20/2008 10:49 AM

NPDES APPLICATION - FORM D
For privately owned treatment systems treating 100% domestic wastew
Mail the complete application to:
N. C. DENR / Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit
(NC0040266
DEER -WATER QUALITY
POINT SOURCE BRANCH
If you are completing this form in computer use the TAB key or the up - down arrows to move om one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name Knightdale Estates MHP LP
Facility Name Knightdale Estates MHP WWTP
Mailing Address 808 Eagle Rock Road
City Wendell
State / Zip Code NC/27591
Telephone Number [phone]
Fax Number [phone]
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same address as above ❑
Street Address or State Road Hodge Road (NCSR 2516)
City
State / Zip Code
County
Knightdale
NC/27545
Wake
3. Operator Information:
Name of the firm, public organization or other entity that operates the facility. (Note that this is not
referring to the Operator in Responsible Charge or ORC)
Name Knightdale Estates MHP LP
Mailing Address 808 Eagle Rock Road
City Wendell
State / Zip Code NC/27591
Telephone Number [phone]
Fax Number [phone]
1 of 4 Farm-D 05/08

c
NPDES APPLICATION - FORM D
For privately owned treatment systems treating 100% domestic wastewaters <1.0 MGD
4. Description of wastewater:
Facility Generating Wastewater(check all that apply):
Industrial 0 Number of Employees
Commercial 0 Number of Employees
Residential X❑ Number of Homes
School 0 Number of Students/ Staff
Other 0 Explain:
112
Describe the source(s) of wastewater (example: subdivision, mobile home park, shopping centers,
restaurants, etc.):
Mobile Home Park
Population served: 326
5. Type of collection system
X❑ Separate (sanitary sewer only) ❑ Combined (storm sewer and sanitary sewer)
6. Outfall Information:
Number of separate discharge points 1
Outfall Identification number(s) 001
Is the outfall equipped with a diffuser? X❑ Yes
❑ No
7. Name of receiving stream(s) (Provide a map showing the exact location of each outfall):
Unnamed tributary to the Neuse River Basin
8. Frequency of Discharge: X❑ Continuous 0 Intermittent
If intermittent:
Days per week discharge occurs: Duration:
9. Describe the treatment system
List all installed components, including capacities, provide design removal for BOD, TSS, nitrogen and
phosphorus. If the space provided is not sufficient, attach the description of the treatment system in a
separate sheet of paper.
The Knightdale Estates Wastewater treatment system is comprised of a 25,000 gallon per
day conventional aerobic digestion plant equipped with an aerobic digester of 2500
gallons. In addition, there are two(2) 1200 gallon anaerobic digesters for additional
storage. All domestic waste from the mobile home park enters the plants aeration basin
and is gravity fed to a primary and secondary rectangular clarifier system. Discharge
from the final clarifier is directed to a chlorine tablet feeder, chlorine contact chamber
(equipped with an air diffuser) and through a dechlorination tablet feeder system.
Wastewater flow is monitored continuously utilizing an ISCO 3230 bubble flow meter.
Design removal values for BOD, TSS, Nitrogen and Phosphorous are expected to be 75-
95%, 85-90%, 30-70% and 10-30% respectively.
2 of 4 Form-D 05/08

•
NPDES APPLICATION - FORM D
For privately owned treatment systems treating 100% domestic wastewaters <1.0 MGD
10. Flow Information: (August 1, 2009 - July 31, 2012)
Treatment Plant Design flow 0.025 MGD
Annual Average daily flow 0.0149 MGD (for the previous 3 years)
Maximum daily flow 0.1337 MGD (for the previous 3 years)
11. Is this facility located on Indian country?
❑ Yes X❑ No
12. Effluent Data (August 1, 2011- July 31, 2012)
Provide data for the parameters listed. Fecal Coliform, Temperature and pH shall be grab samples, for all other
parameters 24-hour composite sampling shall be used. If more than one analysis is reported, report daily maximum
and monthly average. If only one analysis is reported, report as daily maximum.
Parameter
Daily
Maximum
Monthly
Units of
Measurement
Average
Biochemical Oxygen Demand (BOD5)
29.4
5.8
Mg/1
Fecal Coliform
300
6
CFU/ 100m1
Total Suspended Solids
71.4
11.1
Mg/1
Temperature (Summer)
28.7
24.1
Degree C
Temperature (Winter)
20.3
16.1
Degree C
pH
7.27
6.79
units
13. List all permits, construction approvals and/or applications:
Type Permit Number Type
Hazardous Waste (RCRA) NESHAPS (CAA)
UIC (SDWA) Ocean Dumping (MPRSA)
NPDES NC0040266 Dredge or fill (Section 404 or CWA)
PSD (CAA) Other
Non -attainment program (CAA)
14. APPLICANT CERTIFICATION
Permit Number
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
Harvey Murphrey General Partner
Printed name of Person Signing Title
Signature of A lican
57^/6.- ( ---
Date
North Carolina General Statute 143-215.6 (b)(2) states: Any person who knowingly makes any false statement representation, or certification in any
application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management
Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method
required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be
guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001
provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.)
4 of 4 Form-D 05/08