NC0084212_Permit Issuance_20091113

NPDES DOCUWENT SCANNINO COVER SHEET
NPDES Permit:
NC0084212
Sparks Rd WTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
November 13, 2009
This document is printed on reuse paper - ipzaore aay
content on the reverse side

+•r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
November 13, 2009
Mr. Jeff Crisco, Director
Davie County Public Utilities
261 Chaffin Street
Mocksville, NC 27028
Subject: Issuance of NPDES Permit NCO084212
Davie County — Sparks Road WTP
Davie County
Dear Mr. Crisco:
Dee Freeman
Secretary
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 May 9, 1994 (or as
subsequently amended).
The terms included in this final permit are considerably different from those found in draft permit sent to
you on May 6, 2009. Since that time, this office has reevaluated its guidance for the permitting of
wastewater discharges from conventional water treatment plants. The results of that reevaluation are
included in the permit. While some parameters have been removed from the list of those to be
monitored and others have been added, the overall effect of these changes is believed to impose less of a
regulatory burden to the permittee. We would. like to thank the ORC of the Sparks Road WTP, Mr.
Michael Weir for his assistance and persistence during the permitting process.
The changes between this final permit and the original draft were described in an October 15, 2009 e-
mail from Bob Sledge of our staff to Mr. Weir. Changes in this final version include:
• The flow limit has been removed, but the requirement for continuous flow monitoring has been
retained. However, the requirement for continuous flow monitoring of the effluent will not become
effective until March 1, 2011. This should allow the County time for planning, budgeting and
installation of an adequate flow measurement device. •
• Monitoring for Calcium and Magnesium have been eliminated from the permit.
• Monitoring for Turbidity has been reestablished as a term of the permit, but monitoring of the
effluent (as opposed to instream monitoring) is now to be performed.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
Location: 512 N. Salisbury St. Raleigh; North Carolina 27604 NofffiCarofinaPhone: 919-807-63001 FAX: [phone] Customer Service:l•877.623.6748 Intemet: www.ncwaterquality.org �%�������
An Equal Opportunity 1 Affirmative Action Employer ,

Mr. Jeff Crisco
NC0084412 Permit Renewal
p. 2
• Monitoring for most constituent parameters has been reduced to quarterly.
• Quarterly monitoring for Total Nitrogen and Total Phosphorous have been added to the permit.
• Footnote 4 from the draft permit has been removed. There is no explicit provision within this permit
to have monitoring for particular parameters reduced or removed during the life of the permit based
upon submittal of data from the discharge. Such modification may be requested, but would be
deemed a major modification of the permit and subject to (currently) a $260.00 modification fee.
Otherwise, monitoring frequencies shall remain the same through the full term of the permit. At the
time of the next permit renewal, monitoring parameters, frequencies and limits could be changed
(added, reduced or eliminated) based upon results of sampling during this permit cycle.
• Mr. Weir has questioned the reintroduction of monitoring and a limit for pH in the permit. This
action has been taken based upon the recommendations of a stakeholder group whose charge was to
evaluate the potential for effects to water quality based on the characteristics of WTP discharges.
The group cited the introduction of caustic chemicals as its rationale for adding this parameter.
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 Bob Sledge at telephone number (919)
807-6398 or via e-mail at [e-mail].
Sincerely, 41
y Teen H. Sullins
cc: Central Files /
NPDES Unit
Winston-Salem Regional Office/Surface Water Protection Section
ec: Aquatic Toxicology Unit
Technical Assistance and Certification Unit

Permit NCO084212
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 provisions 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,
Davie County Public Utilities
is hereby authorized to discharge wastewater from a facility located at the
Sparks Road WTP
728 Sparks Road, Northeast of Farmington
Davie County
to receiving waters designated as an unnamed tributary to the Yadkin River in the Yadkin -Pee Dee
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 December 1, 2009.
This permit and authorization to discharge shall expire at midnight on May 31, 2014.
Signed this day November 13, 2009.
o--Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO084212
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.
Davie County Public Utilities
is hereby authorized to:
1. Continue to operate an existing water treatment facility with the following components:
♦ Two filter backwash lagoons
♦ Dechlorination
This facility is located at the Sparks Road WTP (728 Sparks Road) northeast of Farmington in
Davie County.
2. Discharge from said treatment works at the location specified on the attached map into an unnamed
tributary to the Yadkin River, currently classified WS-IV waters in the Yadkin -Pee Dee River
Basin.

Permit NCO084212
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Latitude: 36"01'58"
Longitude: s0"30.00•• N C 0 0 8 4 212
Facility
Y
Quad x C16SE & C 17S W
Receiving Stream: Ur Yadkin River
County of Davie
Location
North
SCALE 1 :24000
Stream Class: WS-IV
Subbasin: 30702 Sparks Road WTP

Permit N00084212
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored
by the Permittee as specified below:
EFFLUENT
CHARACTERISTIC
LIMITS'" ."
MONITORING REQUlR�MENTS
Monthly
Average
`.: Daily
Maximum
Measurement :
Fre uenc
Sample Type
t
Sample Location
Flow
Weekly
Instantaneous/
Effluent
Flow
Continuous)
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
Total Residual Chlorine2
17 Ng/L
2/Month
Grab
Effluent
pH3
2/Month
Grab
Effluent
Turbidity
2/Month
Grab
Effluent
Aluminum
Quarterly4
Grab
Effluent
Manganese
Quarterly4
Grab
Effluent
Fluoride
Quarterly4
Grab
Effluent
Total Zinc
Quarterly4
Grab
Effluent
Total Copper
Quarterly4
Grab
Effluent
Total iron
Quarterly4
Grab
Effluent
Total Nitrogen
Quarterly4
Grab
Effluent
Total Phosphorous
Quarterly4
Grab
Effluent
Whole Effluent Toxicity5
Quarterly
Grab
Effluent
Footnotes:
1. The requirement for continuous flow monitoring will become effective on March 1, 2011.
Until that date, flow monitoring shall be conducted on a weekly basis, using instantaneous
sampling methods.
2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance
with the permit. However, the Permittee shall continue to record and submit all values reported by
a North Carolina certified laboratory (including field certified), even if these values fall below 50
µme•
3. The pH shall not be less than 6.0 standard units, nor greater than 9.0 standard units.
4. Monitoring should be performed in conjunction with toxicity testing.
5. See Condition A. (2.) for toxicity testing requirements. Toxicity sampling should coincide with
sampling for parameters covered by footnote 4.
All samples collected should be of a representative discharge.
There shall be no floating solids or foam in other than trace amounts.

Permit NCO084212
A. (2.) CHRONIC TOXICITY MONITORING (QUARTERLY)
The permittee shall conduct guarterl chronic toxicity tests using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions.
The effluent concentration defined as treatment two in the procedure document is 90 %. The testing
shall be performed as a Ceriodaphnia dubia May pass/fail test. The tests will be performed during
the months of February, May, August and November. Effluent sampling for this testing shall be
performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DWQ Form AT-1(original) is to be sent to the following address:
Attention: NC DENR / DWQ / Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the
report with the notation of "No Flow" in the comment area of the form. The report shall be submitted
to the Environmental Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT
Forms submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls,
shall constitute an invalid test and will require immediate follow-up testing to be completed no later
than the last day of the month following the month of the initial monitoring.

Sledge, Bob
From: Sledge, Bob
Sent: Thursday, October 15, 2009 8:04 AM
To: '[e-mail]'
Subject: Sparks Road WTP NPDES Permit Renewal
Attachments: Draft Conventional WTP Monitoring.pdf; DRAFT Alternate limits page.pdf
Hi Mr. Weir,
I'm sorry it's taken so long to bring about more movement on the issuance of this permit. There has been a good deal of
reevaluation of our current permitting strategy for WTPs over the past few months. Those who have conducted the
review will soon issue a modified strategy to our staff for development of new permits. Because of the incomplete
status of some of the permit renewals I'm handling, I've been authorized to offer the terms of the modified strategy to
those permittees. While there may be parts of this strategy that some people will remain dissatisfied with, I believe that
overall, it is an improvement from what we were using in the past.
Please be advised that for the combined sake of consistency and management of the workload in this office, I can offer
you essentially the terms you saw in the draft permit, or those noted within this draft version of a modified permitting
strategy for conventional water treatment plant discharges. Changes within the new strategy include:
The new strategy contains no flow limit. However, flow -based monitoring requirements and limits will be determined
through reexamination of flow data already provided.
Monitoring for most constituent parameters will be quarterly.
Monitoring requirements for Calcium and Magnesium have been eliminated. pp r
Turbidity is reestablished as a monitored parameter (as it is in the current permit).
There is no explicit provision under this strategy to have monitoring for particular parameters reduced or removed
during the life of the permit based upon submittal of data from the discharge. Such modification may be requested, but
would be deemed a major modification of the permit and subject to a $260.00 modification fee. Otherwise, monitoring
frequencies shall remain the same through the full term of the permit. At the time of the next permit renewal,
monitoring parameters, frequencies and limits could be changed (added, reduced or eliminated) based upon results of
sampling during this permit cycle.
A copy of a proposed monitoring and limits page for the permit is attached. Please note for your particular permit that
effluent monitoring for Total Nitrogen and Total Phosphorous have been added. These parameters were not included
in the draft permit based upon initial review of submitted flow data. Our subsequent conversations and additional
information you have provided regarding flow would require monitoring for thRsg par metgrs to" included in either
version you would choose. '�R�^S C�'
Under either version, the flow limit will be removed. However, the requirement for continuous flow monitoring will
remain. To allow you time to budget, plan, and install an adequate flow meter, this requirement will not take effect
until March 1, 2011.
It would appear to me that the new strategy option would be the better deal for most WTPs. If you would like to talk
about it, please give me a call or reply to this e-mail. I will be in the office until 11:30am this morning and until 2:30pm
tomorrow (Friday).
Thank you for your patience.

���
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Division of Water Quality
Coleen H. Sullins
Director
May 6, 2009
Dee Freeman
Secretary
MEMORANDUM RECEI
To: Lee Spencer VED
NC DENR / DEH / Regional Engineer
Winston-Salem Regional Office
,n11 23
From: Bob Sledge
NPDES unit ppDENR . WATER
Subject: Review of Draft NPDES Permit NC00842i 20INT SouC
( QUALITM
Davie County — Sparks Road WTP E BRANCH
Davie County
Please indicate below your agency's position or viewpoint on the draft permit and return this form by
June 15, 2009. If you have any questions on the draft permit, please contact me at [phone] or
via e-mail at [e-mail].
RESPONSE: (Check one)
ElConcur with the issuance of this permit provided the facility is operated and maintained properly,
the stated effluent limits are met prior to discharge, and the discharge does not contravene the
designated water quality standards.
�✓�/Concurs with issuance of the above permit, provided the following conditions are met:
L��Ac1/<Q /v I L & C7<Q /" I L& 0
ElOpposes the issuance of the above permit, based on reasons stated below, or attached:
1617 Mail Service Center, Raleigh, North Carolina 27699.1617 VoCarofinaOne
Location: 512 N. Salisbury SL Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-677-623-6746 Internet• www.ncwaterquality.org K
lly
An Equal Opportunity \ Affirmative Action Employer

NCDERR-
North Carolina Department of Environment and Natural Resources
Division of Environmental Health
Beverly Eaves Perdue Terry L. Pierce
Governor Director
July 21, 2009
Memorandum
To: Bob Sledge, Environmental Engineer
NPDES Unit
From: Lee G. Spencer, Regional Engineer
Winston-Salem Regional Office
Public Water Supply Section, DEH, DENR
. Re: NPDES Permit Numbers: NC0082949, NC0084212, NCO0844252
Denton WTP, Davie County -Sparks Road WTP, Davidson Water, Inc. WTP
Dee Freeman
Secretary
First of all, I want to apologize for the late response on these NPDES draft. perm its. Even though we have
discussed my concerns via phone conversation, I should have provided you a written response before now.
Tom Belnick and I also discussed my concerns via a phone conversation on June 19, 2009.
As you know, my primary concerns are the proposed monitoring changes for these Water Treatment Plant
(WTP) discharges. If there are true environmental concerns associated with these longstanding discharges, then
certainly the concerns should be addressed. However, especially in view of current economic difficulties for
most local governments, added monitoring requirements, without sound justification, seems inappropriate.
Many of the added constituents proposed for monitoring should not be a significant presence in the WTP
discharges. 'These appear to include: calcium, magnesium, fluoride, copper, zinc, and ammonia nitrogen.
Corrosion inhibitors, fluoridation, and chloramination are all introduced after filtration at a WTP. Therefore, it
is very unlikely that associated contaminants would ever be in backwash water, or settled water sludge.
Additionally, I would like to see Whole Effluent Toxicity monitoring quickly removed from the monitoring
requirements, if no problems are observed.
It seems strange to me that monitoring requirements for Settleable Solids and Turbidity have been removed
from these permits. These should be the main constituents in conventional WTP discharges, and permittees
need to be aware to keep these contaminants to a minimum in their discharges.
Thanks for allowing me the opportunity to comment on these draft permits.
Public Water Supply Section — Jessica G. Miles, Chief one
Winston-Salem Regional Office NorthCarolina
585 Waughtown Street, Winston-Salem, North Carolina 27107-2241
Phone: [phone]FAX: [phone]Internet: ncdrinkingwater.slatemc.us Natural&
An Equal opportunity 1 Affirmative Action Employer

Sledge, Bob
From:
Mickey, Mike
Sent:
Monday, May 11, 2009 11:19 AM
To:
Sledge, Bob
Cc:
Tedder, Steve
Subject:
Draft Permit - Davie Co. WTP - NC0084212
Bob - Below are my comments on the above draft permit for the Sparks Road WTP•
Q!
1) The monthly average flow limit of 0.023 MGD is too low. Is this a decimal err r7 The cover letter states that the limit
is based on the highest monthly average flow reported over the last three years. I pulled just the 2008 monitoring
reports from our files and the highest month was 0.177 MGD in October 2008. 1 would suggest that the limit be set
higher than any value they have reported to date. With anticipated growth in the county the WTP output will surely
increase causing higher backwash flows than previously reported. Perhaps the NPDES flow limit could be based on
maximum backwash flow at maximum WTP output so we don't create a noncompliance issue.
2) Suggest a grace period of 18 months instead of 12 months to have flow meter installed. Spoke with Mike Weir, ORC,
on Friday and he indicated that they are working to find funds for an open channel flow meter with sonar attached to
their SCADA system.
3) Recommend that footnote (4) also apply to Whole Effluent Toxicity testing. If the effluent does not exhibit xi
oxici�j
then monitoring could be discontinued. �� / �an�+e /o� 7 "7 �
Thanks, Mike.
Please note new E-mail address: Mike. Mickev@NCDENR.¢ov
Mike Mickey
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

Winston-Salem Journal
Advertising Affidavit
NCDENR/DWQ/POINT SOURCE BRANCH
ATTN: DINA SPRINKLE
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
Winston-Salem JournalP.Winst nOlE I V�%
E
MAY 1 1 2009
DENR , WATER QUALITY
POINT SOURCE BRANCH
Account Number
3376309
Date
May 08, 2009
Date Category Description Ad Size Total Cost
05/08/2009 Legal Notices PUBLIC NOTICE North Carolina Environment 2 x 56 L 387.53
PUBLIC NOTICE
North Carolina Environments]
Management Commisslon/NPDES Unit
1617 Mall Service Center
Raleigh NC Zr699-2617
Notice of Intent to Issue a
NPUFS Wastewater PerrmN
The North Carolina Environmental Management
Commission proposes to Issue a NPDFS wastewater
discharge permit to the penon(s) listed below.
Written comments regarding the proposed Gerintt
will be accepted until 30 days after the publish date
of this notice. The Director of the NC Division. of
Water graft (DWQ) may hold a public hearing
should there be a signigcam degree of public Imer-
est Please mail comments and/or IMormation re.
quests to DWQ at the above address Interested
persons me visit the OWQ at 512 N. Salisbury
Stree; Raleig9h, NC ro review Intormation an file.
additional Irdormation on NPDES permits and this
-11 may be found on our website: www.ncwater-
qua .'9 or by calling (919) $074704.
Field Products, Inc req4uested renewal of permit
NCOM5871 for me Flakt Product Remediation Site
in Forsyth County this permitted discharge Is
treated groundwater to Brushy Fork. Yadkin Pee.
Dee River Basin.
Davie County PubBe UtllNles requested renewal of
Dav eltCpumy, mis permitted Pdischa gads h ated
Otter-bazkwash wastewater to an unnamed tributa-
ry to the Yadkin River in the Yadkin -Pee Dee River
Basin.
Water oaaNh Innmes, Imo. requested a modifica-
tion of permit NCW4228 for Ponds WWTP in
Watauga County. The m cli ication Includes an ex-
penMitted dischfrom
arge Is trea076 ted mn IcIPal 36 MwasstewD. a rer to Watauga River, Watauga River Basin.
The Town of East Bend has applied for re..l of
permit NCOWE726 for East Bend Industrial Park in
Yadkin County. This permitted fatally discharges
treated wastewater W the Yadkin River In the
Yadkin -Pee Dee River Basle. This discharge may
affect future allocations in this portion of a wa-
tershed
WSJ: May 9, 2009
Media General Operations, Inc.
Publisher of the
Winston-Salem Journal
Forsyth County
Before the undersigned, a Notary Public of Forsyth County, North Carolina, duly
commissioned, qualified, and authorized by law to administer oaths, personally appeared
D.H. Stanfield, who by being duly sworn deposes and says: that he is Controller of the
Winston-Salem Journal, engaged in the publishing of a newspaper known as Winston-Salem
Journal, published, issued and entered as second class mail in the Cityof Winston-Salem, in
said County and State: that he is authorized to make this affidavit and swom statement: that
the notice or other legal advertisement, a true copy of which is attached hereto, was
published in the Winston-Salem Journal on the following dates:
05/08/2009
and that 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
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.
This 8th day of May, 2009
Swom to and subscribed before me, this 8th day
My Commission expires ,�(��' . 1t to
(signature ofp—erslan ma trig Jfidc vq)
JOHNSON
'PUBLIC

Davie County Public Utilities
261 Chaffin Street
Mocksville, NC 27028
Mr. Charles H. Weaver, Jr.
NPDES Unit
NCDENR
1617 Mail Service Center
Raleigh, NC 27699-1617
ur
Dear Mr. Charles H. Weaver, Jr.:
This letter is a request for renewal of our NPDES permit NC0084212
issued to Sparks Road WTP, Davie County, which expires on May 31, 2009.
This NPDES permit covers the discharge of two 785,000 gallon lagoons
located at the Sparks Rd. WTP which handle clarifier and filter backwash.
Since our permit was issued in 2004 this facility has had one change
to its design. In fall of 2005 a Fast -Track Application for Dechlorination
Facilities Authorization to Construct was acquired and a new dechlorination
unit was installed. The unit is a NORWECO Bio-Dynamic Series 4000
Dechlorination Tablet Feeder that uses NORWECO Bio-Neutralizer
Dechlorination Tablets. These tablets utilize Sodium Sulfite to effectively
reduce the chlorine residual in our supernatant discharge. Effective
February 1, 2006 a Total Residual Chlorine limit was attached to our
parameters for our Self -Monitoring Testing.
In the spring of 2005 the sludge in our lagoons was dredged and land
applied on neighboring farm fields. This was the first time since beginning
of operation that the sludge was removed from the lagoons. The lagoons
lasted as designed for 10 years and estimated year of next sludge removal
will be around 2015 unless it becomes necessary for removal sooner.
Since 2004 this facility has had complete satisfactory Compliance
Evaluation Inspections and no violations towards all aspects of our current
NPDES permit. It is with great pleasure that I include with this letter our
NPDES permit renewal application package for your review.
Sincerely,
Michael C. Weir
Sparks Rd. WTP Physical Chemical ORC
Da aunty Public Utilities

Davie County Public Utilities
Sparks Road Water Treatment Plant
Sludge Handling Plan
The Sparks Road WTP has two parallel 785,000-gallon filter
backwash lagoons. The lagoons provide long-term storage of sludge
developed during clarifier flushing and filter backwash operations. As
sludge is added to the lagoons the chemical solids are settled by gravity.
The supernatant is discharged through the overflow -supernatant pipe to a
man made ditch that flows to an unnamed tributary of the Yadkin River.
Sludge depth is monitored in each lagoon and lagoons are designed to
last up to 10 years at the expected plant sludge disposal rate before solids
have to be removed. Once lagoons are classified as full, sludge in the
lagoons is dredged and land applied on neighboring farm fields. Prior to
dredging a land application permit is acquired and the sludge is analyzed to
assure it is safe to apply. The sludge removal is contracted out to a
specialized private company to assure that all state and federal laws would
be followed though out the sludge removal process.
Ins immary the sludge handling at this facility happens only once
ever 10 years and is contracted out for land application.

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
Racir Information to determine notential for expedited hermit renewal
Reviewer/Date
o
2rr 15^-0 $
Permit Number
1 C- O o
t
Facility Name
4- 6
r GV i
Basin Name/Sub-basin number
p )<,i
Receiving Stream
U,
01- o �1--OZ
Stream Classification in Permit
V,1 S - L
Doespen-nit need NH3 limits?
o
Does permit need TRC limits?
Fr
Does permit have toxicity testing?
Q O
Does permit have Special Conditions?
N 0
Does permit have instream monitoring?
i F;?- --sP r'6rw4-.e� r
Is the stream finpaired on 303 d) list)?
-4 f-,c5-
Any obvious compliance concerns?
ehl-ern`
Any permit mods since lastpermit?
Existingexpiration date
New expiration date
IDS
New permit effective date
Miscellaneous Comments
ED permit renewal administrative
YES_ This is a SIMPLE EXPEDITED p {
renewal with no changes, or only minor changes such as TRC, NH3,
name/ownership changes). Include conventional WTPs in this group.
YES_ This is a MORE COMPLEX EXPEDITED permit renewal (includes
Special Conditions (such as EAA, Wastewater Management Plan), 303(d)
listed, toxicity testing, instream monitoring, compliance concerns, phased
limits). Basin Coordinator to make case -by -case decision.
YES_ This permit CANNOT BE EXPEDITED for one of the following reasons:
• Major Facility (municipal/industrial)
• Minor Municipals with pretreatment program
• Minor Industrials subject to Fed Effluent Guidelines (lb/day limits for BOD, TSS,
etc)
• Limits based on reasonable potential analysis (metals, GW remediation organics)
• Permitted flow > 0.5 MGD (requires full Fact Sheet)
• Permits determined by Basin Coordinator to be outside expedited process
TB Version 8/18/2006 (NPDES Server/Current Versions/Expedited Fact Sheet)