NC0046728_Permit (Issuance)_20090921

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0046728
Mooresville / Rocky River WWTP
Document Type: cffrmit
Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Approval
Instream Assessment
(67b)
Speculative Limits
Environmental
Assessment (EA)
Permit
History
Document Date:
September 21, 2009
Thies document is printed on reuse paper - ignore any
content an the reirerse side

ern
NCDET�IR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
September 21, 2009
The Honorable William Thunberg, Mayor
Town of Mooresville
413 North Main Street
P.O. Box 878
Mooresville, NC 28115
Subject: Issuance of NPDES Permit (Major
Modification) NC0046728
Rocky River WWTP
Iredell County
Dear Mr. Thunberg:
Division personnel have reviewed and approved your application for a Major Modification. 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 Major Modification includes no major changes from the draft Major Modification sent to you
on July 29, 2009. This Major Modification provides for an interim expansion to 7.5 MGD.
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.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
Internet: www.ncwaterquatity.org
An Equal Opportunity lAffirmative Action Employer
No•
�rthCarolina
7VaturaUij

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 Sergei Chernikov at
telephone number [phone].
cc: NPDES Files
Central Files
Mooresville Regional Office -Surface Water Protection
Aquatic Toxicology Unit (e-copy)
Marshall Hyatt, EPA Region IV (e-copy)
Bill Kreutzberger, CH2MHILL, (e-copy)
4824 Parkway Plaza Blvd. Suite 200, Charlotte, NC 28217
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturally

Permit NC0046728
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, the
Town of Mooresville
is hereby authorized to discharge wastewater from a facility located at the
Rocky River WWTP
Johnson Dairy Road
Mooresville
Iredell County
to receiving waters designated as Dye Creek 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.
The permit shall become effective November 1, 2009.
This permit and the authorization to discharge shall expire at midnight on May 30, 2013.
Signed this day September 21, 2009.
en H. Sullins, Director
.otrkDivision of Water Quality
By Authority of the Environmental Management Commission

Permit NC0046728 .�
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. Therefor e, the exclusive authority to
operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included
herein.
The Town Of Mooresville is hereby authorized to:
1. Continue to operate and maintain the existing 5.2 MGD wastewater treatment facility that
includes the following components:
> Influent screw pump station
> Dual mechanical screens
> Dual aeration basins (mechanical fixed aerators)
> Dual final clarifiers
> Dual aerobic digesters (diffused air)
> Chlorine contact chamber (C12 gas)
> Dechlorination
> Post aeration
> Vacuum sludge drying beds
> Standby electric power
This facility is located at the Rocky River Wastewater Treatment Facility on Johnson Dairy
Road near Mooresville in Iredell County.
2. Discharge from said treatment works at the location specified on the attached map into Dye
Creek which is classified as C waters in the Yadkin -Pee Dee River Basin.
3. After receiving an Authorization to Construct permit from the Division, construct
wastewater treatment facilities not to exceed 5.5 MGD design flow.
4. After receiving an Authorization to Construct permit from the Division, construct
wastewater treatment facilities not to exceed 7.5 MGD design flow.
5. After submitting an Engineer's Certification, discharge from expanded treatment works at
the location specified on the attached map into Dye Creek which is classified as C waters in
the Yadkin -Pee Dee River Basin.

i+
7 V
Not to SCALE
USGS Quad Name: Mooresville
Receiving Stream: Dye Creek (Branch)
Stream Class: C
Subbasin: Yadkin -Pee Dee - 03-07-11
Lat.: 35°31'33"
Long.: 80°46'56"

. Permit NC0046728
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration or expansion, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS : ;,. i .:
'
MONITORING REQUIREMENTS
Monthly .
A r a0:
Weekly
Average
Daily
Mazmium
Measurement
Fre uen
Sample •
Type
Sample
Location
Flow
5.2 MGD
Continuous
Recording
: I or E
BOD, 5 day, 20 *C2
24.0 mg/L
36.0 mg/L
Daily
Composite
I & E
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
I & E
NH3 as N
(April 1 to October 31)
2.0 mg/L
6.0 mg/L
Daily
Composite
E
NH3 as N
(November 1 to March 31)
4.0 mg/L
12.0 mg/L
Daily
Composite
E
Dissolved Oxygen
Daily
Grab
E
Dissolved Oxygen
3/Week
Grab
U & D
Fecal Coliform
(geometric mean)
200 / 100 mL
400 / 100 mL
Daily
Grab
E
Total Residual Chlorine4
18 pg/L
Daily
Grab
_ E
Temperature °C
Daily
Grab
E
Temperature °C
3/Week
Grab
U & D
Total Nitrogen
(NO2 + NO3 + MN)Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Chronic Toxicity5
Quarterly
Composite
E
Total Mercury6
13.0 ng/L
13.0 ng/L
Weekly
Grab
E
Cyanides
5.0 pg/L
5.0 pg/L
Weekly
Grab
E
Total Lead
2/Month
Composite
E
Total Copper
2/Month
Composite
E •
Total Zinc
2/Month
Composite
E
pH
Between 6.0 and 9.0 s.u.
Daily
Grab
E
Notes:
1) I= influent, E= effluent, U= upstream approximately 1/2 mile upstream of the outfall. D = downstream at NCSR 2420
and NCSR 1394. Upstream and downstream samples shall be grab samples collected three times per week from June
through September then once per week during the other months of the year. (As a participant in the Yadkin Pee -Dee
River Basin Association, the subject facility is not responsible for conducting the instream monitoring requirements listed above.
Should your membership in the agreement be terminated, you shall notify the Division immediately and the instream monitoring
requirements specified in your permit will be automatically reinstated.)
2) The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85% removal).
3) The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
4) Limit and monitoring only apply if chlorine is used for disinfection. The facility shall report all effluent TRC values
reported by a NC certified laboratory including field certified. However, effluent values below 50 ug/L will be
treated as zero for compliance purposes.
5) Chronic Toxicity (Ceriodaphnia) at 90%: February, May, August & November (see special condition A. (4.)).
6) Effluent samples must be analyzed by an EPA -approved 1631 low Ievel mercury analysis method.
7) The Division shall consider all cyanide values reported below 10 µg/L to be "zero" for compliance purposes.
However, Discharge Monitoring Reports (DMRs) shall record all values reported by a North Carolina -certified
laboratory (even if these values fall below 10 µg/L).
There shall be no discharge of floating solids or foam visible in other than trace amounts.

. Permit NC0046728
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the Authorization to Operate and lasting until expiration or expansion,
the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT ;;
'LIMITS
; �
MONITORING REQUIREMENTS
y .
CHARACTERISTICS
r` `
Monthly ;'
Average
Weekly, -
Average :' ;
w Daily
Maximum
Measurement
Frequency
Sample,
. Type
Sample
Location1.
Flow
5.5 MGD
Continuous
Recording
I or E
BOD, 5 day, 20 °C2
15.0 mg/L
22.5 mg/L
Daily
Composite
I & E
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
I & E
NH3 as N
2.0 mg/L
6.0 mg/L
Daily
Composite
E
Dissolved Oxygen3
Daily
Grab
E
Dissolved Oxygen
3/Week
Grab
U & D
Fecal Coliform
(geometric mean)
200 / 100 mL
400 / 100 mL
Daily
Grab
E
Total Residual Chlorine'
18 µg/L
Daily
Grab
E
Temperature °C
Daily
Grab
E
Temperature °C
3/Week
Grab
U & D
Total Nitrogen
(NO2 + NO3 + TKN)
Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Chronic Toxicity5
Quarterly
Composite
E
Total Mercury6
13.0 ng/L
13.0 ng/L
Weekly
Grab
E
Cyanide?
5.0 pg/L
5.0 pg/L
Weekly
Grab
E
Total Lead
2/Month
Composite
E
Total Copper
2/Month
Composite
E
Total Zinc
2/Month
Composite
E
pH
Between 6.0 and 9.0 s.u.
Daily
Grab
E
Notes:
1) I= influent, E= effluent, U= upstream approximately 2 mile upstream of the outfall. D = downstream at NCSR 2420 and
NCSR 1394. Upstream and downstream samples shall be grab samples collected three times per week from June through
September then once per week during the other months of the year. (As a participant in the Yadkin Pee -Dee River Basin
Association, the subject facility is not responsible for conducting the instream monitoring requirements listed above. Should your
membership in the agreement be terminated, you shall notify the Division immediately and the instream monitoring requirements
specified in your permit will be automatically reinstated.)
2) The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective
influent value (85% removal).
3) The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
4) Limit and monitoring only apply if chlorine is used for disinfection. The facility shall report all effluent TRC values
reported by a NC certified laboratory including field certified. However, effluent values below 50 ug/L will be treated as
zero for compliance purposes.
5) Chronic Toxicity (Ceriodaphnia) at 90%: February, May, August & November (see special condition A. (4.)).
6) Effluent samples must be analyzed by an EPA -approved 1631 low level mercury analysis method.
7) The Division shall consider all cyanide values reported below 10 µg/L to be "zero" for compliance purposes. However,
Discharge Monitoring Reports (DMRs) shall record all values reported by a North Carolina -certified laboratory (even if
these values fall below 10 µg/L).
There shall be no discharge of floating solids or foam visible in other than trace amounts.

Permit NC0046728 •
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning with the receipt of an Engineer's Certification of Completion for expansion above 5.5 MGD 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 ,
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS. .
Monthly.:
. , , Average :.
Weekly
Average
Daily. ; _
Maximum -
Measurement
- Frequency
; , ample! <
Type.; = .
Sample -
`._ , Location1
Flow
7.5 MGD
Continuous
Recording
I or E
BOD, 5 day, 20 °C2
(April 1 to October 31)
5.0 mg/L
7.5 mg/L
Daily
Composite
I & E
BOD, 5 day, 20 °C2
(November 1 to March 31)
10.0 mg/L
15.0 mg/L
Daily
Composite
I & E
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
I & E
NH3 as N
(April 1 to October 31)
1.0 mg/L
3.0 mg/L
Daily
Composite
E
NH3 as N
(November 1 to March 31)
2.0 mg/L
6.0 mg/L
Daily
Composite
E
Dissolved Oxygen3
Daily
Grab
E
Dissolved Oxygen
3/Week
Grab
U & D
Fecal Coliform
(geometric mean)
200 / 100 mL
400 / 100 mL
Daily
Grab
E
Total Residual Chlorine4
17 pg/L
Daily
Grab
E
Temperature °C
DaiIy
Grab
E
Temperature °C
3/Week
Grab
U & D
Total Nitrogen
(NO2+NO3 +TKN)
Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Chronic Toxicity5
Quarterly
Composite
E
Total Mercury6
13.0 ng/L
13.0 ng/L
Weekly
Grab
E
Cyanides
5.0 pg/L
5.0 pg/L
2/Month
Grab
E
Total Lead
2/Month
Composite
E
Total Copper
2/Month
Composite
E
Total Zinc
2/Month
Composite
E
pH
Between 6.0 and 9.0 s.u.
Daily
Grab
E
Notes:
1) I= influent, E= effluent, U= upstream approximately 1/2 mile upstream of the outfall. D = downstream at NCSR 2420
and NCSR 1394. Upstream and downstream samples shall be grab samples collected three times per week from June
through September then once per week during the other months of the year. (As a participant in the Yadkin Pee -Dee
River Basin Association, the subject facility is not responsible for conducting the instream monitoring requirements listed above.
Should your membership in the agreement be terminated, you shall notify the Division immediately and the instream monitoring
requirements specified in your permit will be automatically reinstated.)
2) The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85% removal).
3) The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
4) Limit and monitoring only apply if chlorine is used for disinfection. The facility shall report all effluent TRC values
reported by a NC certified laboratory including field certified. However, effluent values below 50 ug/L will be
treated as zero for compliance purposes.
5) Chronic Toxicity (Ceriodaphnia).at 90%: February, May, August & November (see special condition A. (4.)).
6) Effluent samples must be analyzed by an EPA -approved 1631 low level mercury analysis method.
7) The Division shall consider all cyanide values reported below 10 µg/L to be "zero" for compliance purposes.
However, Discharge Monitoring Reports (DMRs) shall record all values reported by a North Carolina -certified
laboratory (even if these values fall below 10 pg/L).
There shall be no discharge of floating solids or foam visible in other than trace amounts.

Permit NC0046728,,
A. (4). CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions. 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.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months
as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February
1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: NC DENR / DWQ / Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. 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 Branch at
the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is
required, monitoring will be required during the following month. 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.

Permit NC0046728
A. (5.) EFFLUENT POLLUTANT SCAN
The permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the table
below (in accordance with 40 CFR Part 136). The annual effluent pollutant scan samples shall represent
seasonal (summer, winter, fall, spring) variations over the 5-year permit cycle. Unless otherwise
indicated, metals shall be analyzed as "total recoverable." Additionally, the method detection level
and the minimum level shall be the most sensitive as provided by the appropriate analytical
procedure.
Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chloroethyl) ether
Chlorine (total residual, TRC) 1,1-dichloroethylene Bis (2-chloroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether
Total Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthalene
Total Phosphorus Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylene chloride Chrysene
Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate
Antimony Tetrachloroethylene Di-n-octyl phthalate
Arsenic Toluene Dibenzo(a,h)anthracene
Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene
Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene
Chromium Trichloroethylene 1,4-dichlorobenzene
Copper Vinyl chloride 3,3-dichlorobenzidine
Lead Acid -extractable compounds: Diethyl phthalate
Mercury P-chloro-m-cresol Dimethyl phthalate
Nickel 2-chlorophenol 2,4-dinitrotoluene
Selenium 2,4-dichlorophenol 2,6-dinitrotoluene
Silver 2,4-dimethylphenol 1,2-diphenylhydrazine
Thallium 4,6-dinitro-o-cresol Fluoranthene
Zinc 2,4-dinitrophenol Fluorene
Cyanide 2-nitrophenol Hexachlorobenzene
Total phenolic compounds 4-nitrophenol Hexachlorobutadiene
Volatile organic compounds: Pentachlorophenol Hexachlorocyclo-pentadiene
Acrolein Phenol Hexachloroethane
Acrylonitrile 2,4,6-trichlorophenol Indeno(1,2,3-cd)pyrene
Benzene Base -neutral compounds: Isophorone
Bromoform Acenaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chlorobenzene Anthracene N-nitrosodi-n-propylamine
Chlorodibromomethane Benzidine N-nitrosodimethylamine
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine
2-chloroethylvinyl ether. Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene
1,1-dichloroethane • Benzo(k)fluoranthene
1,2-dichloroethane Bis (2-chloroethoxy) methane
Test results shall be reported to the Division in DWQ Form- DMR-PPA1 or in a form approved by the Director,
within 90 days of sampling. A copy of the report shall be submitted to Central Files to the following address:
Division of Water Quality, Water Quality Section, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617.

Ton'n J'Vlooresi'ille
NORTH CAROLINA
August 31, 2009
Mr. Sergei Chernikov, Ph.D.
Environmental Engineer II
NCDWQ NPDES Unit - West
1617 Mail Service Center
Raleigh, NC 27699-1617
ROCKY RIVER W.W.T.P.
SUPERINTENDENT'S OFFICE
TELEPHONE [phone]
FAX [phone]
POST OFFICE BOX 878
MOORESVILLE, NORTH CAROLINA 28115
RECEIVED
SE° - 2 ? JU
DENR - WATER QUALI1Y
POINT SOURCE BRANCH
Subject: Mooreseville Rocky River WWTP - Draft Permit Response
NPDES Permit #NC0046728
Rocky River WWTP, Iredell County
Dear Mr. Chernikov:
The Town of Mooresville greatly appreciates the effort of the Division of Water Quality
(DWQ) staff in developing this draft permit allowing increased capacity to 7.5 million
gallons per day (MGD) at the Town's Rocky River WWTP. The Town and our consultants
have reviewed the draft permit for the major modification of the Town's Rocky River
WWTP. The Town is providing the following comments regarding the draft permit.
1) Permit effluent limitations and monitoring requirements for expansion to 7.5 MGD
We have reviewed the draft permit and believe that these limits and monitoring
requirements are acceptable and achievable. We do not have any further concerns regarding
the draft limits for a facility with a capacity of 7.5 MGD.
2) Inclusion of effluent limitations for operation at capacities of 5.2 MGD and 5.5 MGD
We are requesting that the current effluent pages for 5.2 and 5.5 MGD operation of the
WWTP be retained in the new permit [see attached pages]. The facility is currently
operating under the 5.2 MGD effluent limits set in the existing permit. The current draft
permit includes only the 5.5 MGD and 7.5 MGD limits pages. This will allow the facility to
continue operating under existing limits while the expansion is under construction or to a
point at which flows begin to approach the 5.2 MGD limit and the need arises to receive an
Authorization to Operate under the 5.5 MGD effluent limits. This will provide the facility
the needed flexibility to treat exisiting flows while planning and constructing capacity to
meet future needs.
1

The Town appreciates Division of Water Quality's cooperation in the development of this
draft permit and looks forward to a continued cooperative approach to meeting future
needs.
If you have any questions, please do not hesitate to contact me at [phone] or our
consultant, Bill Kreutzberger with CH2M HILL at [phone] ext. 217.
Sincerely,
A:4/.0.43e
Mike Lamberth
Wastewater Treatment Plant Superintendent
CLT/ DWQ7.5MGD_08282009_PermitResponse.doc
cc: Tom Belnick/DWQ
Rob Krebs/DWQ MRO
The Honorable William Thunberg, Mayor - Town of Mooresville
Mr. John Vest, Public Services Director - Town of Mooresville
file
2

.Chernikov, Sergei
From: [e-mail]
Sent: Monday, August 10, 2009 9:23 AM
To: Chemikov, Sergei
Subject: Mooresville Rocky River WWTP draft modification
EPA has no comments on this permit.

North Carolina } ss
Mecklenburg County}
The Charlotte Observer Publishing Co.
Charlotte, NC
Affidavit of Publication
THE CHARLOTTE OBSERVER
DINA SPRINKLE
NCDENR/DWQ/POINT SOURCE BRANCH
1617 MAIL SERVICE CENTER
RALEIGH NC 27699
REFERENCE: 30063432
6371897 mooresville
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duly sworn or affirmed according to law,
doth depose and say that he/she is a
representative of The Charlotte Observer
Publishing Company, a corporation organized and
doing business under the laws of the State of
Delaware, and publishing a newspaper known as The
Charlotte Observer in the city of Charlotte,
County of Mecklenburg, and State of North Carolina
and that as such he/she is familiar with the
books, records, files, and business of said
Corporation and by reference to the files of said
publication, the attached advertisement was
inserted. The following is correctly copied from
the books and files of the aforesaid Corporation
and Publication.
PUBLISHED ON: 08/01
AD SPACE: 54 LINE
FILED ON: 09/01/09
NAME:
In Testimony Whereof I have hereunto set my hand and affixed
day and ,ear aforesaid.
Notar
My Commission Expires: _/_/_
Public Notic
North Carolina Environmental Mane9e^e^t
sonlNt SUnit
ice Center
Raielgh NC 7 Mail 27699-1617Eastewater Permit on
•
ueaNPD SWastewae Commis
Notice of Intent to
Enssonmental discharge permit is the
The Noah Carolina issuNPDES wastewater will e
proposes listed below. the Proposed Perk notice.
person(s) ardm9 may hoe
Written
heepire or comments
N Division atter tof Whe ater °utility (0 ram) of hold
p should the a srg^k'cant degree requests She Director Please
of thece s andlor information ey visit the
a Public heating above
bo a addtess, comments Persons information
visit boe
11 comma^
ic
Street. Raleigh. NO to iev a� thisation
interest. Please
on
DWO al the
N � Salisbury DES ats and 'his notice ' or.
OWOet�d
iund inloour webske:Pw w'
may � found on our tion lexPa^San
919) 1 6304 molar modA'4a 7P in Irerlell
by 1.5 M ( Mooresville requested Rocky River wastewater It
The Town o permit NC004a is municipal drscher9 treated •t�,ye Cr this Yadkin
- oVe Creek; Yadkin Rrvec Bas'^•
•LP6371697
My Commission Expires May 27, 2011

North Carolina
Department of Administration
Beverly Eaves Perdue, Governor Britt Cobb, Secretary
July 21, 2009
Ms. Jennifer Haynie
DENR, Water Quality
Construction Grants & Loans
1633 Mail Service Center
Raleigh, NC 27699-1633
Re: SCH File # 09-E-4300-0362; EAIFUNSI; Town of Mooresville interim expansion of the
Rocky River Wastewater Treatment Plant from 5.2 MGD to 7.5 MGD
Dear Ms. Haynie:
The above referenced environmental impact information has been reviewed through the State
Clearinghouse under the provisions of the North Carolina Environmental Policy Act.
No comments were made by any state/local agencies in the course of this review. Therefore, no further
environmental review action on your part is required for the compliance with the Act.
Best regards.
Sincerely,
✓u,GAleoizi (7(4,)
Valerie W. McMillan, Director
State Environmental Review Clearinghouse
cc: Region F
Mailing Address: Telephone: [phone] Location Address:
1301 Mail Service Center Fax [phone] West Jones Street
Raleigh, NC 27699-1301 State Courier #51-01-00 Raleigh, North Carolina
e-mall [e-mail]
An Equal Opportunity/Affirmative Action Employer

NORTH CAROLINA STATE CLEARINGHOUSE
DEPARTMENT OF ADMINISTRATION
INTERG(TE R�ENTAL REVIEW
COUNTY : I RE DE L L
MS MELBA' MCGEE
CLEARINGHOUSE COORDINATOR
DENR LEGISLATIVE AFFAIRS
ARCHDALE BLDG - MSC 1 1601
RALEIGH NC
REVIEW DISTRIBUTION
H02 : WASTEWATER TREATMENT
FACILITIES
STATE NUMBER: 09-E-4300-0362
DATE RECEIVED: 06/10/2009
AGENCY RESPONSE:07/15/2009
REVIEW CLOSED: 07/20/2009
CC&PS - DIV OF EMERGENCY MANAGEMENT
CENTRALINA COG
DENR LEGISLATIVE AFFAIRS
DEPT OF CULTURAL RESOURCES
DEPT OF TRANSPORTATION
PROJECT INFORMATION
APPLICANT: DENR, Water Quality
TYPE: State Environmental Policy Act
Environmental Assessment/Finding of Ilo Significant impact
DESC: Town of Mooresville interim expansion of• the Rocky River Wastewater Treatment
Plant from 5.2 MGD to 7.5 MGD - including two 1.0 MGD interim wastewater
treatment plants for interim shcrt tern capacity through 2012 and additional
improvement .o€ 7.5 MGD of tertiary filtration and UV disinfection
T: attached p ] LT has e st:bmitted 1.r.. the C. t . • C :.: a. I use r
intergovernmental
rn , •a� review. e Please review �n ...r: r n by the
above
ateyoucer:�m� eta: Lr_ :;. ase e_ t. d �;:cr:-- S•,. _ Lsvt�: _ u�.,.e
indicated date to 1301 Mail Service Center, Raleigh NC 27 0q-130?.
If additional review time is needed, please contact this office at [phone].
AS A RESULT OF THIS REVIEW24:1E FOLLOWING IS SUBMITTED:
SIGNED BY:
(i DATE:
NO COMMENT[:] COMMENTS ATTACHED

NORTH CAROLINA STATE CLEARINGHOUSE
DEPARTMENT OF ADMINISTRATION
INTERGOVE 1 MENTAL REVIEW
COUNTY: IREDELL
MS RENEE GLEDHILL-EARLEY
'� t,., .:� Y, �•si? :fit .�,-.
DEPT OF CULTURAL RESOURCES
i wi • ...
H02: WASTEWATER TREATMENT
FACILITIES
CLEARINGHOUSE COORDINATOR
111
STATE HISTORIC PRESERVATION OFFICEJUN 2009
1 2
MSC 4617 - ARCHIVES BUILDING
RALEIGH NC 48TORCDj 1 0N
REVIEW DISTRIBUTION
CC&PS - DIV OF EMERGENCY MANAGEMENT 2 G�
CENTRALINA COG 1i
DENR LEGISLATIVE AFFAIRS �j
DEPT OF CULTURAL RESOURCES - 44(
DEPT OF TRANSPORTATION
PROJECT INFORMATION
APPLICANT: DENR, Water Quality
TYPE: State Environmental Policy Act
Environmental Assessment/Finding of No Significant Impact
DESC: Town of Mooresville interim expansion of the Rocky River Wastewater Treatment
Plant from 5.2 MGD to 7.5 MGD - including two 1.0 MGD interim wastewater
treatment plants for interim short term capacity through 2012 and additional
improvement of 7.5 MGD of tertiary filtration and UV disinfection
The attached project has been submitted to the N. C. State Clearinghouse for
intergovernmental review. Please review and submit your response by the above
indicated date to 1301 Mail Service Center, Raleigh NC 27699-1301.
STATE NUMBER: 09-E-4300-0362
DATE RECEIVED: 06/10/2009
AGENCY RESPONSE:07/15/2009
REVIEW CLOSED: 07/20/.2009
A
or- 2?37
sz 8k -155r
Jj P4 f
If additional review time is needed, please contact this office at [phone].
AS A RESULT OF THIS REVIEW THE FOLLOWING IS SUBMITTED: PI NO COMMENT 0 COMMENTS ATTACHED
SIGNED BY:
%),,AQ
co JUL 2009 5f,
r,
RECEIVED
DATE: 7'

SOC PRIORITY PROJECT: No
To: Western NPDES Unit
Surface Water Protection Section
Attention: Sergei Chernikov
Date: June 23, 2009
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Iredell
NPDES Permit No.: NC0046728
PART I - GENERAL INFORMATION
I. Facility and address: Rocky River WWTP
Town of Mooresville
Post Office Box 878
Mooresville, N.C. 28115
2. Date of investigation: N/A
3. Report prepared by: Michael L. Parker, Environmental Engineer II
4. Person contacted and telephone number: Bill Kreutzberger, CH2M Hill, [phone].
5. Directions to site: From the jct. of NC Hwy. 3 and Johnson Dairy Rd. (SR 1142) southeast
of the Town of Mooresville, travel west on Johnson Dairy Road approx. 0.7 mile. The
entrance to the WWTP site is on the right (north) side of Johnson Dairy Road via a paved
access road.
6. Discharge point(s), list for all discharge points:
Latitude: 35° 31' 33"
Longitude: 80° 46' 56"
USGS Quad No.: E 15 SE
7. Receiving stream or affected surface waters: Dye Creek
a. Classification: C
b. River Basin and Subbasin No.: Yadkin 030711
c. Describe receiving stream features and pertinent downstream uses: Good flow has
been observed in the receiving stream, which is approx. 4-5 feet wide and 4-8 inches
deep at the point of discharge. Downstream uses are primarily agriculture. The
receiving stream is listed on the FY 2006 303(d) list as impaired. Municipal point
sources and urban runoff are listed as the causes of impairment.

Page Two
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater: 5.2 MGD (Design Capacity)
b. What is the current permitted capacity: 5.2 MGD
c. Actual treatment capacity of current facility (current design capacity): 5.2 MGD
d. Date(s) and construction activities allowed by previous ATCs issued in the previous
two years: The current permit includes language that allows for the increase in
permitted flow from 5.2 to 5.5 MGD, pending the receipt of an Authorization to
Operate (ATO). This Office has no record of any action taken by the Division on the
Town's ATO request.
e. Description of existing or substantially constructed WWT facilities: The existing
WWT facilities consist of an influent screw pump station, dual static screens, dual
aeration basins with mechanical (fixed) aerators, dual final clarifiers, dual aerobic
digesters, gaseous disinfection with contact chamber, post aeration, vacuum sludge
drying beds, and stand-by power.
f. Description of proposed WWT facilities: Proposed (package) WWT facilities will
include aeration, secondary clarification, tertiary (cloth media) filters, and UV
disinfection that will serve the entire WWTP.
g.
Possible toxic impacts to surface waters: Chlorine is added to the waste stream.
h. Pretreatment Program (POTWs only): The Town has an approved pretreatment
program.
3. Treatment Plant Classification: Class IV (no change from previous rating).
PART III - OTHER PERTINENT INFORMATION
1. Special monitoring or limitations (including toxicity) requests: None at this time.
PART IV - EVALUATION AND RECOMMENDATIONS
The Town of Mooresville (the Town) has requested a modification to the subject permit to
allow for the expansion of the existing WWTP from its current hydraulic capacity to 7.5 MGD.
According to the Town, this expansion is necessary to accommodate the anticipated flows from
future residential and commercial development. The Engineering Report/Environmental
Assessment (ER/EA) previously prepared for the Town described the modifications necessary to
expand the Town's WWTP from 5.5 MGD to 7.5 MGD. In reviewing this documentation, there
were several areas of the existing facility that have been identified as limiting areas where the
capacity to accept an additional 2.0 MGD may become an issue. These areas in order of magnitude
include:

)3)
Page Three
1. RAS/WAS Pumping System - The current process capacity of this system is 5.50 MGD
with a hydraulic capacity of 5.9 MGD.
2. Disinfection System - The disinfection system is capable of treating up to 5.2 MGD based
on a firm capacity of the chlorinator system. However, the report submitted by the Town's
engineer also indicated that based on an historical peak hour flow of 12.1 MGD, which
equates to a 4.03:1 peaking factor, the actual disinfection system capacity should be
considered 2.88 MGD - well below the requested 7.5 MGD capacity. If a new disinfection
system is built, this may not be a hindrance to the planned expansion.
3. — Aerobic Digesters - Based on compliance with Class B stabilization requirements, the
aerobic digesters at the subject facility can effectively treat up to 2.39 MGD. All solids
produced at this facility are currently disposed of at a local landfill (land application is the
back-up), which does not require Class B stabilization. If this method of disposal continues,
the aerobic digestion process will not be a limiting factor, however, the ability to de -water
residuals may become an issue in order to pass the paint filter test for land -filling.
It was noted in reviewing the ER/EA that future flow projections are based on population
projections that may be substantially affected by the current economic slowdown. Much of the data
in this report was prepared in 2007 and earlier, which was well before the US economy took a
significant downturn due to a slowing housing market and major upheavals in the world's financial
markets. With the current economy continuing to experience slow growth, flow projections may
likely be much lower than originally speculated and the Town may not need the additional 2.0 MGD
flow as quickly as originally thought. In light of the current economic situation, this Office would
prefer that the Town pursue a more conventional method of expansion rather than the short-term
"fix" of adding two package -type WWTPs. As noted in the ER/EA, it was originally projected that
2010 would be the year when the additional 2.0 MG of capacity would be needed. With current
economic conditions likely affecting this schedule, and the annual average daily flow rate for 2009
hovering around 3.0 MGD, the Town should have more than enough time to prepare plans and
specifications, obtain approval, and complete construction of any additional WWT facilities needed
to provide additional capacity for the Town before the additional capacity is needed.
This modification request, however, is not to authorize WWTP construction activities, but to
determine whether the receiving waters can accept 2.0 MGD of additional flow from this facility.
Therefore, pending receipt and approval of the draft . ermit, it is recommended that the sub'
permit or t s i rty . - mo. i ie• to reflect effluent limitations for both 5.5 M an .5 MGD.
h:\dsr\dsr09\moorville.doc
Signature of Report Preparer
Water Quality Regional Supervisor
Da
VD 5)
Date

NCDENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NC0046728
Town of Mooresville, Rocky River WWTP
Facility Information
(1.) Facility Name:
Rocky River WWTP
(2.) Permitted Flow
(MGD): ; 5.5/7.5
(6.) County:
Iredell
(3.) Facility Class: i IV
(7.) Regional Office:
Mooresville
(4.) Pretreatment Program:
Full/inactive
(8.) USGS Topo Quad:
E15SE
(5.) Permit Status: ' Expansion
(9.) USGS Quad Name:
Stream Characteristics
_
(1.) Receiving Stream:
Dye Creek
(7.) Drainage Area
4.8
_2.) Sub -basin:
03-07-11
(8.) Summer 7Q10 (cfs):
0.5
(3.) Stream Index
Number:
13-17-2b
(9.) Winter 7Q10 (cfs):
0.9
(4.) Stream Classification:
C
(10.) 30Q2 (cfs):
1.1
(5.) 303(d) Status:
Imparted due
sediment
(11.) Average Flow (cfs):
5.0
(6.) 305(b) Status:
(12.) IWC %:
94.5/96
SUMMARY
The Town of Mooresville has applied for an interim expansion of the permitted flow from 5.5 MGD to
7.5 MGD for their Rocky River WWTP. This facility is currently permitted for a 5.5 MGD discharge.
There are no industrial users discharging to the plant (previous models conducted had high industrial
input).
Dye Creek is listed on the 2008 303(d) list based on biological impairment. Potential sources are listed
as municipal pretreatment (indirect), agriculture and urban runoff/storm sewers (no stressor studies
have been conducted to specifically determine the cause for the biological impairment, but hydraulic
impact from urban runoff is suspected). Based on review of WET results, the WWTP is not
contributing to instream toxicity.
The FONSI for the expansion project has been released from the State Environmental Review
Clearinghouse on July 21, 2009. The permit limits have been established in accordance with the
Speculative Effluent Limits Letter that was sent on February 20, 2006. The proposed expansion will
incorporate tertiary filters and UV disinfection, so the entire plant can operate at 5/1 limits for BOD
and ammonia -nitrogen.
The Division of Water Quality determined that the incremental impact of the increased discharge will
not result in contravention of applicable water quality standards or loss of the Creek's designated uses.
The Division concluded that expansion of the existing treatment plant and continued discharge to Dye
Creek is the most feasible alternative. The Division has determined that the facility expansion is
important for economic and social development in the area of the discharge.

NPDES Permit Fact Sheet — 07 / 27 / 09 ; Town of Mooresville/ Rocky River WWTP
Page 2 NC0046728
INSTREAM MONITORING
The Mooresville - Rocky River WWTP is a member of the Yadkin Pee Dee River Basin Association, so
its instream monitoring requirements are waived. At this time, however, there are no coalition
monitoring stations in the vicinity of the discharge.
RPA
Reasonable potential analyses (RPA) were conducted for As, Cd, Cr, Cu, CN, Pb, Hg, Mo, Ni, Se, Ag,
and Zn. Please see attached.
TOXICITY TESTING
Chronic P/F @ 90% at 5.5/7.5 MGD using Ceriodaphnia.
No change to the toxicity testing condition is recommended at this time. The facility passed all whole
effluent toxicity (WET) tests for the period of review (01/2005 — 05/2009) except May 2006. The
subsequent test passed.
COMPLIANCE SUMMARY
A review of the facilities compliance data indicates good performance. There were two NOVs issued
during the review period (2004-2009): 07/21/06 — Tox. Test; 12/14/05 — fecal coliforms. .
The Compliance Evaluation Inspection conducted on December 19, 2008 concluded that the "facility
appeared to be properly operated and well maintained".
SUMMARY OF PROPOSED CHANGES
• A new effluent page for an expanded flow has been added to the permit.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
July 29, 2009 (est.)
September 21, 2009 (est.)
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Sergei Chernikov at [phone].
REGIONAL OFFICE COMMENTS:
DATE: NAME:

REASONABLE POTENTIAL ANALYSIS
Rocky River WWTP
NC0046728
Time Period 2008-2009
Qw (MGD) 7.5
7Q10S (cfs) 0.5
7Q10W (cfs) 0.9
3002 (cfs) 1.1
Avg. Stream Flow, QA (cfs) 5
Reeving Stream Dye Creek
WWTP Class IV
IWC (%) @ 7Q10S 95.876
@ 7Q10W 92.814
@ 3002 91.356
@ QA 69.925
Stream Class C
Outfall 001
Qw=7.5MGD
PARAMETER
TYPE
(1)
STANDARDS &
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS/
Chronic
Si FAV/
Acute
n
• Dd. Max Pted Cw Allowable Cw,
Arsenic
C
50
ug/L
18
0
2.5
Acute:
_ _
Chronic:
N/A
_
_ Ti —
•
no limit
- - — -- -
— —
Cadmium
NC
2
15
ug/L
18
0
339.0
Acute:
Chronic:
15
2
no Cant
an values are below detect
Chromium
NC
50
1,022
ug/L
18
0
4.7
Acute:
Chronic:
1,022
52
no limit
•
Copper
NC
7
AL
7.3
ug/L
38
30
362.7
Acute:
_ _ _---_
Chronic:
7
T- --
no limit-----------------
— — —
action level standard
— —
- —
Cyanide
NC
5
N
22
10
ug/L
110
10
10.1
Acute:
---_
Chronic:
22
5
keep the limit
------------_----
-- -- - -
—, -
Lead
NC
25
N
33.8
ug/L
84
2
18.6
Acute:
_ _
Chronic:
34
26
-
no limit
Mercury
NC
12
2.0000
ng/L
74
64
34.5800
Acute:
_ _
Chronic:
N/A
_ _ _ _ _
13
_ _ _ _ ------ — — — --— —
keep the[imit
— -—
Molybdenum
A
3,500
ug/L
17
14
31.2
Acute:
_ -_
Chronic:
N/A
_ _-
3,831
no limit _ _ _ _ _
----------------------- ---.-
—
—_- —
— — -
Nickel
NC
88
261
ug/L
18
0
2.5
Acute:
Chronic:
261
92
no limit
—�—--------- — --------
— ---
Selenium
NC
5.0
56
ug/L
19
0
9.1
Acute:
_ _
Chronic:
56
5
no limit
-------------------- — --
all values are below detect
---
Silver
NC
0.06
AL
1.23
ug/L
18
2
987.0
Acute:
_
Chronic:
1
-- ----
no limit
------------------ ---- --
action level standard
---
Zinc
NC
50
AL
67
ug/L
34
34
258.4
Acute:
_ _
Chronic:
67
52
no brit
action level standard'
• Legend:
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
Freshwater Discharge
46728-rpa-2009.xts, rpa
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Arsenic
Date
Data
BDL=1/2DL Results
5.0 2.5 Std Dev. 0.0000
5.0 2,5 Mean 2.5000
5.0 2.5 C.V. 0.0000
5.0 2.5 n 18
5.0 2.5
5.0 2.5 Mult Factor = 1.0000
5.0 2.5 Max. Value 2.5 ug/L
5 2.5 Max. Pred Cw 2.5 ug/L
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5.0 2.5
5.0 2.5
5.0 2.5
5.0 2.5
-1-
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
-2-
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Cadmium
Chromium
Date Data BDL=1/2DL Results
• 1 0.5 Sid Dev. 21.1757
1 0.5 Mean 11.5000
'< 1 0.5 C.V. 1.8414
< 1 0.5 n 18
< 1 0.5
j<c, 1 0.5 Mult Factor = 6.7800
t<;i 1 0.5 Max. Value 50.0 ug/L
1 0.5 Max. Pred Cw 339.0 ug/L
,. 1 0.50
< 1 0.50
< 1 0.50
< 1 0.50
< 1 0.50
< 100 50.00
< 100 50.00
< 100 50.00
< 100 50.00
< 1 0.50
Date
Data
BDL=1/2DL Results
2 1.0 Std Dev. 0.7670
2 1.0 Mean 1.8333
2 1.0 C.V. 0.4183
2 1.0 n 18
2 1.0
5 2.5 Mult Factor = 1.8800
2 1.0 Max. Value 2.5 ug/L
5 2.5 Max. Pred Cw 4.7 ug/L
< 5 2.5
' < 2 1.0
< 2 1.0
< 5 2.5
. < 5 2.5
< 5 2.5
< 5.0 2.5
< 5.0 2.5
< 5.0 2.5
< 5.0 2.5
46728-rpa-2009.xls, data
- 4 - 7/16/2009

REASONABLE POTENTIAL ANALYSIS
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
-3-
46728-rpa-2009.xis, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Copper
Cyanide
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
Data BDL=1/2DL Results
3.00 3.0 Std Dev. 18.6635
4.90 4.9 Mean 10.2111
6.20 6.2 C.V. 1.8278
<' 2.00 1.0 n 36
4.10 4.1
11.00 11.0 Mult Factor = 4.0300
6.00 6.0 Max. Value 90.0 ug/L
4.80 4.8 Max. Pred Cw 362.7 ug/L
3.30 3.3
8.90 8.9
10.00 10.0
2.40 2.4
5.40 5.4
90.00 90.0
7.00 7.0
6.80 6.8
5.50 5.5
5.80 5.8
5.50 5.5
80.00 80.0
16.10 16.1
7.90 7.9
5.20 5.2
8.20 8.2
4.90 4.9
5.50 5.5
6.70 6.7
6.00 6.0
5.00 2.5
9.00 9.0
<. 5.00 2.5
< 5.00 2.5
<+ 5.00 2.5
7.00 7.0
7.00 7.0
< 5.00 2.5
Date Data BDL=1/2DL Results
2.4 2.4 Std Dev. 1.7999
2 1.0 Mean 3.2645
• 2 1.0 C.V. 0.5513
2 2.0 n 110
<; 2 1.0
2 1.0 Mult Factor = 1.3500
< 2 1.0 Max. Value 7.5 ug/L
�+ 2 1.0 Max. Pred Cw 10.1 ug/L
2.4 2.4
2 1.0
2 1.0
2 1.0
2 1.0
2 1.0
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
< 5 2.5
• 5 2.5
< 5 2.5
8 7.5
<` 5 2.5
< 5 2.5
< 2 1.0
< 2 1.0
< 2 1.0
< 2 1.0
• 2 1.0
< 2 1.0
< 2 1.0
<' 2 1.0
<' 2 1.0
< 2 1.0
2 2.0
c 2 1.0
< 2 1.0
< 2 1.0
<. 2 1.0
2 1.0
< 2 1.0
< 2 1.0
<z 2 1.0
2 2.0
3 3.3
2 1.0
3 3.0
2 1.0
2 1.0
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 5.0
5 5.0
5 5.0
I< 5 5.0
5 5.0
< 5 5.0
<; 5 5.0
5 5.0
< 5 5.0
< 5 5.0
<` 5 5.0
<i
46728-rpa-2009.xls, data
- 7 - 7/16/2009

REASONABLE POTENTIAL ANALYSIS
71
72
73
74
75
76
77
78
79
80
81 .
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
< 5 5.0
•< 5 5.0
i< 5 5.0
< 5 5.0
5 5.0
8 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
< 5 5.0
5 5.0
6 5.0
is < 5 5.0
5 5.0
5 5.0
< 5 5.0
< 5 5.0
r <' 5 5.0
5 5.0
5 5.0
-8-
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Lead
Mercury
Date Data BDL=1/2DL Results
1 < 5 2.5 Std Dev. 1.2835
2 I < 5 2.5 Mean 2.4048
3 <. 5 2.5 C.V. 0.5337
4 , <' 3 1.5 n 84
5 5 5.0
6 ; <; 5 2.5 Mutt Factor = 1.4300
7 < 5 2.5 Max. Value 13.0 ug/L
8 13 13.0 Max. Pred Cw 18.6 uglL
9 ' < 5 2.5
10 < 5 2.5
11 ' < 5 2.5
12 < 5 2.5
13 < 5 2.5
14 < 5 2.5
15 < 5 2.5
16 < 5 2.5
17 '< 5 2.5
18 <I 5 2.5
19 • < 5 2.5
20 < 5 2.5
21 < 5 2.5
22 <. 5 2.5
23 < 5 2.5
24 <. 5 2.5
25 < 5 2.5
26 < 5 2.5
27 < 5 2.5
28 . < 5 2.5
29 < . 3 1.5
30 <. 3 1.5
31 < 5 2.5
32 <: 3 1.5
33 <' 5 2.5
34 < 3 1.5
35 < 3 1.5
36 < 3 1.5
37 < 5 2.5
38 , <3 1.5
39 <•• 3 1.5
40 <' 3 1.5
41 <. 3 1.5
42 <' 3 1.5
43 < 3 1.5
44 <= 3 1.5
45 I <, 3 1.5
46 ,<1 5 2.5
47 ;, ' 3 1.5
48 I4 3 1.5
49 [<• 5 2.5
50 f<' 3 1.5
51 II < 3 1.5
52 r.<; 3 1.5
53 F4. 3 1.5
54 i;<1 5 2.5
55 r<; 5 2.5
56 !'<' 5 2.5
57 ! <j 5 2.5
58 <; 5 2.5
59 5 2.5
60 .! 5 2.5
61 I'<; 5 2.5
62 ! < 5 2.5
63 < 5 2.5
64 kC` 5 2.5
65 "<- 5 2.5
66 i`° 5 2.5
67 lrt<; 5 2.5
68 '' 1 5 2.5
: a,
69 5 2.5
70 <; 5 2.5
Date Data BDL=1/2DL Results
1 Apr-2006 15 15.0 Std Dev. 3.5979
2 6.5 6.5 Mean 2.7581
3 1.5 1.0 C.V. 1.3045
4 1.1 1.0 n 74
5 1.4 1.0
6 3 3.0 MultFactor = 2.16
7 1.4 1.0 Max. Value 16.0 ng/L
8 1.3 1.0 Max. Pred Cw 34.6 ng/L
9 3.0 3.0
10 3.2 3.2
11 1.8 1.0
12 5.1 5.1
13 Feb-2005 z 15.0 15.0
14 6.5 6.5
15 4.9 4.9
16 7.4 7.4
17 1.0 1.0
18 1.0 1.0
19 1.3 1.0
20 1.4 1.0
21 1.3 1.0
22 2.4 2.4
23 2.4 2.4
24 2.6 2.6
25 1.6 1.0
26 Mar-2005 16.0 16.0
27 5.1 5.1
28 9.5 9.5
29 1.6 1.0
30 1.2 1.0
31 1.1 1.0
32 < 1.0 1.0
33 2.0 2.0
34 < 1.0 1.0
35 2.0 2.0
36 2.0 2.0
37 1.0 1.0
38 2.5 2.5
39 1.1 1.0
40 < 1.0 1.0
41 1.2 1.0
42 7.5 7.5
43 1.9 1.0
44 1.7 1.0
45 1.2 1.0
46 1.8 1.0
47 < 1.0 1.0
48 1.2 1.0
49 1.1 1.0
50 !<, 1.0 1.0
51 1.5 1.0
52 1.4 1.0
53 1.1 1.0
54 3,6 3.6
55 1.2 1.0
56 - . 1.5 1.0
57 1.4 1.0
58 1.1 1.0
59 3.6 3.6
60 1.2 1.0
61 € 1.1 1.0
62 5.7 5.7
63 3.6 3.6
64 Jul-2008 Kt 16.0 16.0
65 �" ; 1.4 1.0
66 k;' 1.0 1.0
67 1.5 1.0
68 1.4 1.0
69 < 1.0 1.0
70 < 1.0 1.0
- 10 -
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
46728-rpa-2009.xls, data
- 9 - 7/16/2009

REASONABLE POTENTIAL ANALYSIS
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
< 5 2.5
<. 5 2.5
< 5 2.5
5 2.5
<; 5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
1.2
1.3
1.3
1.0
1.0
1.0
1.0
1.0
46728-rpa-2009.xls, data
- 11 - 7/16/2009

REASONABLE POTENTIAL ANALYSIS
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
- 12 -
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Molybdenum
Nickel
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
Date Data BDL=1/2DL Results
13 13.0 Std Dev.
5.7 5.7 Mean
13 13.0 C.V.
13 13.0 n
9.2 9.2
7.8 7.8 Mull Factor = 2.0800
12 12.0 Max. Value 15.0 ug/L
7.8 7.8 Max. Pred Cw 31.2 ug/L
5.1 5.1
15.0 15.0
13.0 13.0
5 2.5
6.5 6.5
5 2.5
5.0 2.5
11.0 11.0
14.0 14.0
4.33
9.04
0.48
17
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
Data
BDL=1/2DL Results
5 2.5 Std Dev. 0.0000
5 2.5 Mean 2.5000
5 2.5 C.V. 0.0000
5 2.5 n 18
5 2.5
5 2.5 Mutt Factor= 1.0000
5 2.5 Max. Value 2.5 ug/L
5 2.5 Max. Pred Cw 2.5 ug/L
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5.0 2.5
46728-rpa-2009.xls, data
- 13 - 7/16/2009

REASONABLE POTENTIAL ANALYSIS
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
-14-
46728-rpa-2009.xis, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Selenium
Silver
Date Data BDL=1/2DL Results
2.5 Std Dev.
2.5 Mean
2.5 C.V.
2.5 n
2.5
0.5 Mult Factor =
2.5 Max. Value
5.0 Max. Pred Cw
5.0
2.5
2.5
5.0
5.0
2.5
5.0
5.0
5.0
5.0
5.0
5
5
5
5
5
1
5
10
10
5
5
10
10
5
10
10
10
10
10
1.4555
3.5789
0.4067
19
1.8200
5.0 ug/L
9.1 ug/L
Date
Data
'5:45
BDL=1/2DL Results
2 1.0 Std Dev. 20.5471
2.5 2.5 Mean 6.7222
2 1.0 C.V. 3.0566
2 1.0 n 18
2 1.0
5 2.5 Mult Factor= 11.0900
2 1.0 Max. Value 89.0 ug/L
5 2.5 Max. Pred Cw 987.0 ug/L
5 2.5
• 2 1.0
<t 2 1.0
• 5 2.5
5 2.5
• 5 2.5
<, 5 2.5
< 5 2.5
89 89.0
: <• 5 2.5
•
•
•
•
•
- 16 -
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
- 15 -
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
Zinc
Date
Data BDL=1/2DL Results
62.5 62.5 Std Dev. 23.3472
56 56.0 Mean 64.5735
62 62.0 C.V. 0.3616
50 50.0 n 34
56 56.0
61 61.0 MuIt Factor = 1.5200
60 60.0 Max. Value 170.0 ug/L
49 49.0 Max. Pred Cw 258.4 ug/L
92 92.0
170 170.0
70 70.0
20 20.0
53 53.0
57 57.0
75 75.0
72 72.0
68 68.0
56 56.0
64 64.0
75 75.0
82 82.0
56 56.0
62 62.0
61 61.0
54 54.0
58 58.0
99 99.0
64 64.0
38 38.0
58 58.0
45 45.0
68 68.0
62 62.0
60 60.0
_19-
46728-rpa-2009.xls, data
7/16/2009

REASONABLE POTENTIAL ANALYSIS
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
-20 -
46728-rpa-2009.xls, data
7/16/2009

• Chernikov, Sergei
From: Parker, Michael
Sent: Thursday, July 23, 2009 8:18 AM
To: Chernikov, Sergei
Subject: RE: Mooresville expansion
Sergei,
The peak flow management issue is one that was raised by CG&L with regards to their upstream pumping capacity and
the ability of the WWTP to receive the anticipated flow. We would be interested in having the Town conduct/report
peak flow monitoring, however, if we are to establish a condition in the permit, we need to make sure that we are able
to ascertain permit compliance with any reported peak flow values.
If you have some suggested language that you feel would fit this situation (and you may also want to consult with Seth
Robertson in CG&L), please forward to me and Rob and we will take a look at it. Otherwise, we may just forgo putting a
special condition in the permit and just handle any excess flows (and possible SSOs) as we currently do.
Mike
From: Chernikov, Sergei
Sent: Wednesday, July 22, 2009 1:25 PM
To: Robbins, Della
Cc: Parker, Michael
Subject: Mooresville expansion
Rob,
I am working on the expansion for the Rocky River WWTP. Tom mentioned that you might want to add some special
condition regarding the peak flow monitoring. Please let me know if you would like to do it and I add this condition to
the permit.
Thank you!
Sergei
Sergei Chernikov, Ph.D.
Environmental Engineer II
N P D ES -West
Phone: [phone], fax [phone]
1617 Mail Service Center
Raleigh, NC 27699-1617
Express mail: 512 North Salisbury St.
Raleigh, NC 27606
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.
i

f / oc' , r per 4- wv t #4-+ wow "of) f ?J J e/ i)4i.) MitiTtif 4/4
&
e L 4- 1 7,, remPal7ik,„),) y.)'�' I'T,QivIJi1J )V t/f
Belnick, Tom r /
From: [e-mail] &e r1 COW/I/le / / y, )% p JWM
Sent: Tuesday, June 09, 2009 7:44 PM 1 y
To: tom.belnick©ncmail.net %O C P)) • J11-) /- il�'f'D'[/ ®/ "
Cc: Jaime.Robinson©CH2M.com; Jim.Nagel©CH2M.com
Subject: FW: Mooresville FONSI/EA -i i e,o eii/.4,-..4 J ii.,-,-rje•
Importance: High a N S ql/+� ✓t'i�/1 7-,/ / 1 16C/ Jgfe
eovy ex14 ao a 4 46 14111.
Tom - As indicated below, CG&L has sent the FONSI/EA to the S atedClearinghouse. Jennifer fo got to attach the FONSI
but I will forward it when we get it. Per our previous discussion, we will be submitting the NPDES permit application within
the next day or so.
a dia())(. 77 ,) /J a.( taxim,440(
Please reply with questions. Thanks
Bill ✓
, A 4/0 ,41,0 ,a0(
k ja, c -(Q r.�,'l r! a t!J-o r7 r°P f.(
e rta« , fci Arte - t-Aj ko
I1110 meet jL f/'Jt St- P en
1 t! ex et io '! 40) Gt �tJ �✓
From: Haynie, Jennifer [mailto:[e-mail]]
Sent: Tuesday, June 09, 2009 4:19 PM
To: Kreutzberger, Bill/CLT; John Vest ([e-mail] 74);411
Subject: Mooresville FONSI/EA
Importance: High
Bill Kreutzberger
CH2M HILL - Charlotte
Direct Phone - 704.543-3269 (New)
Mobile Phone - 704.904.5918
Email - bill.kreutzberger(a7ch2m.com
Bill & John,
Fift': AICooq(o7-? %ifd ' le od()
Please find attached the FONSI/EA and copy of the Letter . Owner. A hard copy will be sent out tomorrow via US mail.
I'm taking the FONSI/EA to Clearinghouse in a few minutes, so y• . quay now submit your plans & specs to DMU.
If you have any questions, please let me know.
Thanks!
Jennifer
i v�11 mod.
1) / qN
i,4-1 ✓rral ZM6�
**Note: My NEW e-mail address is jennifer.haynieC�ncdenr.gov**
Jennifer M. Haynie, Supervisor
Facilities Evaluation Unit
Construction Grants and Loans Section
1633 Mail Service Center
Raleigh, NC 27699-1633
919.715.6223 (phone)
919.715.6229 (Fax)
[e-mail]
1

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.
Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.
is •
2

410 CH2MHILL
June 10, 2009
Tom Belnick
Supervisor, Western NPDES Program
512 N. Salisbury Street
Raleigh, NC 27604
Dear Tom,
CH2M HILL
11301 Carmel Comons Blvd.
Suite 304
Charlotte, NC 28226
Tel [phone]
Fax [phone]
The Town of Mooresville and CH2M HILL wish to express our appreciation for the NC
DWQ's willingness to accept the NPDES Permit Application for the Town of Mooresville
Rocky River WWTP Expansion to 7.5 MGD when the associated FONSI is released to the
Clearinghouse. The FONSI was released to the Clearinghouse on June 9, 2009, and
CH2M HILL is now submitting the attached NPDES Permit Application on behalf of the
Town of Mooresville.
The upgrades to the Town of Mooresville Rocky River WWTP include the following major
unit processes:
• Additional influent pumping capacity
• Additional biological treatment system with fine -bubble diffused aeration capable of
treating 2 million gallons per day
• Cloth -media filtration
• Ultraviolet disinfection
• Additional cascade aeration capacity
The Town of Mooresville appreciates this opportunity to submit the NPDES Permit
Application for the Rocky River WWTP, and looks forward to working closely with the NC
DENR through the NPDES Permit Application process so construction of the improvements
outlined above may begin quickly.
Please do not hesitate to contact me at 704.543-3269 or at [e-mail] if you
have any questions.
Sincerely,
g Z./At
William A. Kreutzberger
CH2M HILL
RECEIVED
DENR - WATER OUALIIY
POINT SOURCE BRANCH

FACILITY NAME AND PERMIT NUMBER:
Rocky River WVVTP, NC0046728
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Yadkin Pee Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA,WASTES
All treatment works receiving discharges from significant industrial users
complete part F.
GENERAL INFORMATION:
or which receive RCRA,CERCLA,
to, an approved pretreatment program?
Users (CIUs). Provide the number
or other remedial wastes must
of each of the following types of
questio ns F.3 through F.8 and
F.1. Pretreatment program. Does the treatment works have, or is subject
® Yes ❑ No
F.2. Number of Significant Industrial Users (SIUs) and Categorical Industrial
industrial users that discharge to the treatment works.
a. Number of non -categorical SIUs. 2
b. Number of ClUs.
SIGNIFICANT INDUSTRIAL USER INFORMATION:
to the treatment works, copy
Supply the following information for each SIU. If more than one SIU discharges
provide the Information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: BestSweet. Inc.
Mailing Address: 288 Mazeppa Road
Mooresville, NC 28115
F.4. industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Combinations for candy. cough drops. and other pharmaceutical coverings are formed by mixing sugar, water. and other flavorings, The resulting
mixture is cooked, shaped into desired forms, and packaged for delivery as candy or pharmaceutical products.
F.5. Principal Product(s) and Raw Material(s). Describe ail of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Confectionery products, dietary supplements. and over-the-counter drug products
Raw material(s): Water. sugar
F.S. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
200.000 gpd (200,000 continuous or intermittent)
the collection system in gallons per
into the collection system
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ® Yes ❑ No
b. Categorical pretreatment standards 0 Yes ® No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 49 of 41

FACILITY NAME AND PERMIT NUMBER:
Rocky River WWTP, NC0046728
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Yadkin Pee Dee
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SI U. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes ® No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
❑ Yes ® No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
❑ Truck 0 Rail 0 Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
❑ Yes (complete F.13 through F.15.) ® No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous 0 Intermittent If intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 50 of 41

FACILITY NAME AND PERMIT NUMBER:
Rocky River WWTP, NC0046728
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Yadkin Pee Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRAICERCLA WASTES,
All treatment works receiving discharges from significant industrial users
complete part F.
GENERAL INFORMATION:
or which receive RCRA,CERCLA,
to, an approved pretreatment program?
Users (Gills). Provide the number
or other remedial wastes must
of each of the following types of
questio ns F.3 through F.8 and
F.1. Pretreatment program. Does the treatment works have, or is subject
® Yes ❑ No
F.2. Number of Significant Industrial Users (SIUs) and Categorical Industrial
industrial users that discharge to the treatment works.
c. Number of non -categorical SIUs. 2
d. Number of ClUs.
SIGNIFICANT INDUSTRIAL USER INFORMATION:
to the treatment works, copy
Supply the following information for each SIU. If more than one SIU discharges
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Carolina Beer and Beverage. LLC
Mailing Address: 110 Barley Park Lane
Mooresville, NC 28115
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Hops, barley, grain, and other ingredients are boiled. Yeast is then added to the mixture, and the resulting mixture is allowed to ferment. Following
fermentation. the mixture undergoes filtration. carbonation, and packaging for sale as beer.
or contribute to the SIU's
F.5. Principal Product(s) and Raw Material(s). Describe ail of the principal processes and raw materials that affect
discharge.
Principal product(s): Beer and other beverages
Raw material(s): Water. yeast, sugar. and flavoring
F.6. Flow Rate.
c. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
500.000 gpd (500,000 continuous or intermittent)
the collection system in gallons per
into the collection system
d. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ® Yes ❑ No
b. Categorical pretreatment standards 0 Yes ® No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 51 of 41

(01
FACILITY NAME AND PERMIT NUMBER:
Rocky River WWTP, NC0046728
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Yadkin Pee Dee
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SI U. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes 0 No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
❑ Yes ® No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
❑ Truck 0 Rail 0 Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Anocm Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
❑ Yes (complete F.13 through F.15.) ID No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
c. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
d. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous 0 Intermittent If intermittent, describe discharge schedule.
END OF PARTF.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 52 of 41

own of .%VlooresviCCe
NORTH CAROLINA
JEFFREY W. CARPENTER
W/S MAINTENANCE
PosT OFFICE Box 878
MOORE:SV 1LLE, NOR'1N CAROLINA 28115
704-799-4292
SUMMARY OF TOWN'S INFILTRATION & INFLOW REPAIRS
The Town of Mooresville first began an Infiltration & Inflow (I & I) program in 2006. In May 2008,
the Town of Mooresville Water/Sewer (W/S) Maintenance Division expanded its I & I program
based on a flow study conducted by our consultant, US Infrastructure of Carolina, Inc. (USI).
Since that date, W/S Maintenance has dedicated a crew of three (3) employees to work
specifically on I & I reduction/flow monitoring. The Engineering Division has also temporarily
assigned two inspectors and an Engineering Technician to assist W/S Maintenance with this
effort. From May 2008 to May 2009, this crew completed approximately:
• 225 point repairs to the sewer system. Most of these repairs have been raising or
replacing vented manhole lids.
• Two projects have been completed by sub -contractors
o Carpenter Street - $75,675— 4 manholes replaced, 2 rehabbed
• Station 115-$131,470 — 7 manholes replaced and 6 rehabbed
• An estimated 85,000 gallons per day of I & I have been eliminated from the
system
• Town has purchased two portable flow monitors to help pinpoint areas of I & I
• Town is planning to install up to 12 permanent monitors but no less than 6 located
on our large transmission lines
• CIP Budget for I & I Reduction
o $300,000 in FY 2009
o $500,000 in FY 2010
• $1, 500, 000 in FY 2011
o $1,000,000 in FY 2012
• $500,000 annually there after
In an effort to increase our I & I program, W/S Maintenance with the assistance of Engineering
recently conducted smoke testing at the abandoned Burlington Mills Site. This testing helped us
confirm that storm drains and private sanitary sewer are cross -connected to the Town's
wastewater collection system. By removing these cross -connections, it is estimated we will
eliminate:
O 100,000 gallons per day per 1-inch rain event.
The Town of Mooresville is dedicated to removing as many sources of I & I from our collection
system as possible, and we are confident through the above work we are making progress
towards this goal. During the flow study and smoke testing, we have also been able to pinpoint
several areas where we will be focusing our I & I resources in the future. The Town's goal is to
remove enough sources of I & I to reduce our peaking factor so that our Rocky River Wastewater
Treatment Plant will not be severely impacted during normal rain events.

----..--, ,1
--,-.\ _ \\
�� — �� CONTRACTOR
.7 J / STAGING AREA
I7 (J/ 1 \ \ \
\ \
\ \
�L i
PROPOSED INFLUENT
PUMP STATION
r.
• - ••. •' F y - -
•
EXcgT4NG AEROBIC DIG -ESTERS -
PROPOSED GENERATOR
EXISTING AERATION BASIN /•
EXISTING CLARIFIERS --r
EXISTING HEADWORKS
s• 1,
rr••'I'
Of. el
PROPOSED UV
DISINFECTION
EXISTING SLUDGE
DRYING BEDS
INTERIM PLANT EXPANSION
FOR THE TOWN OF
VERIFY SCALE
BAR ISOHE INCH OH
ORICHIAL i:f AMIN.'
6.1.11111
1'
MOORESVILLE, NC
0
❑
r
Fa
2
2
U
O
a
DATE DEC 2008 a:
342497.50 0
000-G-001 w
SHEET 002
PROJ
DWG
NDM LOCATION : GNV
FILENAME: dn000G023_342497 50.dgn DATE: 12/9/2008 PLOT TIME: 10:04:00 AM

NC0046728: Town of Mooresville Rocky River WWTP
Process Flow Schematic NPDES Form 2A
B.3. Process Flow Diagram • -
♦ Package Fine
Screening
RS
influent Flow
Measurement
(Mag Meter)
2.09 mgd
RAS
500,000 gpd
(each)
ML 1.55 mgd (each)
Aeration Secondary
Basin larifier
Aeration
Basin
Secondary
Clarifier I
WAS-►S
SE
Package WWTPs
Aeration
Basins
Influent Flow
Measurement
Fine
Screening
Aeration
Basins
ML ► Seconda
Clarifiers
8.49 mgd
RAS
1
5.74 mgd
Proposed Temp
Influent Pump
Station to
Package Plant
Screenings to
Disposal
Influent
Pump
Station
Plant Recycles
331,123 gpd
Manual
Coarse
Screening
RS 7.50 mgd
108,000 gpd
- V
FBW
Screenings to
Disposal
2.75 mgd
to
2.03 mgd
A
FBW
Package Disk uv Disinfection
Filtration
5.57 mgd SE
170,000 52,900
Rotary Drum gpd
gpd Thickener /
WAS !/
WAS fr
Package 60,000 gpd_▪ ,_
WWTP
177,100 gpd THR
1
6,877 gpd D
To Landfill4
LEGEND
RS - Raw Sewage
RAS - Recycled Activated Sludge
WAS - Waste Activated Sludge
SE- Secondary Effluent
ML - Mixed Liquor Suspended Solids
PLE- Plant Effluent
DWS - Dewatered Sludge
THR- Thickener Recycle
DFR- Dewatering Filtrate Recycle
FBW- Filter Backwash
WWTP- Wastewater Treatment Plant
CO
Retrofit Existing
Chlorine Contact
• as Pump Station
Aerobic
Digesters/
Holding
52,900
gpd
Belt Filter
Press
L
"watering
46,023 gpd 4,
Expanded
Cascade
Re -aeration
i
DFR 7.49 mgd
nProposed PLE
riE• xisting
To Rocky River
R• etrofit

c"h
NC0046728
TOWN OF MOORESVILLE ROCKY RIVER WWTP
NPDES FORM 2A
B.3. PROCESS FLOW DIAGRAM
Town of Mooresville Rocky River WWTP PFD Description
Headworks
The existing plant headworks consists primarily of influent pumping and screening, and
will continue to serve the existing plant. Raw wastewater enters the facility through a 48-
inch sewer line and flows through a coarse bar screen. A 24-inch sidestream/plant drain
collector pipe also enters at the same location. Archimedean screw pumps convey the
wastewater to a pair of fine screens.
The interim influent pump station will be located adjacent to the existing influent pump
station. The new wet well will be hydraulically interconnected to the existing influent wet
well. Submersible pumps will draw wastewater from the wet well to be conveyed to the
interim plant expansion, passing through an influent magnetic flow meter for measurement
of flow to the interim plant expansion. Influent fine screening for the interim plant
expansion will be located downstream of the interim influent pump station.
Aeration Basins
Raw wastewater from the existing Parshall flume is split between two 2.6-MG aeration
basins. Mechanical aerators provide oxygen and mixing to the biological process. Mixed
liquor from each basin exits the process by flowing over an effluent weir. Flow from the
Aeration Basin No. 2 (east basin) is conveyed via a pipeline to Aeration Basin No. 1 (west
basin) where the effluent flow combines and is conveyed to the secondary clarifiers.
Screened raw sewage will be treated biologically within parallel package WWTPs. Flow
from the screening unit will be split to each package WWTP. Each package WWTP will
consist of a circular steel tank where the center is a clarifier and the outer rings are the
aeration basins. Each package plant will provide 1 MGD of treatment capacity on a
maximum monthly basis. An interconnected pipe with isolation valves will link the two
package WWTPs together, allowing MLSS to be shared between the two clarifiers.
Secondary Clarifiers
Effluent flow from the existing aeration basins is split between two secondary clarifiers. The
flow enters through a feed well where a quiescent environment allows for a separation of
solids from the liquid stream. Clarified effluent flows over a v-notch weir and is collected in
a collection launder. The launder, which encompasses the clarifier, conveys the flow to a
collection box where flow from both sides of the clarifier combines before exiting through a
pipeline. The existing chlorine contact basin will be retrofitted as a secondary effluent
pump station serving the existing plant. The secondary effluent pump station will
conveyed secondary effluent flow to the package disk filters.
As stated previous, MLSS from the interim plant aeration basins will be conveyed to the two
package WWTP clarifiers. Clarified liquid will be collected via the effluent weir trough and
flow to the secondary effluent collection box. Biological solids will settle and be collected at
the bottom of the clarifier and then be conveyed to a collection sump using a rotating truss
type scraper.

a
NC0046T28
TOWN OF MOORESVILLE ROCKY RIVER WWTP NPDES FORM 2A
B.3. PROCESS FLOW DIAGRAM
RASNVAS Pumping
The existing RAS piping consists of an 18-inch gravity pipeline from each clarifier to the
RAS/WAS wet well and a 16-inch diameter force main from the RAS/WAS pumping
building to the head of the aeration basins. WAS is pumped to the digesters via an 8-inch
force main from the RAS/WAS pumping building.
In the interim plant expansion, centrifugal pumps will draw secondary sludge from the
clarifier sump via a 10" pipeline and will recycle it as RAS back to aeration zone 1. WAS
will be diverted from the RAS suction line to the existing aerobic digesters (WAS). A flow
control valve and magnetic flow meter will control the amount of WAS conveyed.
Tertiary Filtration
Secondary effluent from the interim expansion and existing plant clarifiers will be directed
to new cloth media filters. Secondary effluent from the existing and interim facilities will
combine within the filter influent box prior to feeding the new cloth media filters using a 30-
inch pipeline. Four filters will be installed, providing 24 MGD of total capacity or 18 MGD
of firm capacity. Backwash from the filters will be collected within a gravity sewer and
discharged into the existing plant drain system. The existing plant drain system discharges
flow at the existing plant influent pump station.
Disinfection System
The existing gaseous chlorine disinfection system at the RRWWTP will be abandoned in
place and a UV disinfection system will be constructed to serve flow from the entire facility.
The UV disinfection system will consist of two channels and will be capable of meeting the
permitted fecal coliform limits at peak hour flow with one UV channel out of service.
Biosolids Management
The existing biosolids management system consists of two aerobic digesters, a rotary drum
thickener, and a portable belt filter presses.
Aerobic Digesters/Holding
WAS pumped from the recycle pump station is conveyed to two aerobic digesters/holding
tanks. Each tank is 70-ft in diameter, 19-ft deep, and has a volume of approximately 592,600
gallons. Three Hoffman multi -stage centrifugal blowers, each with a 1,800 scfm capacity and
a 100-hp motor, deliver air to the tanks. The tanks will provide 5.44 days of detention time
for un-thickened solids or 20 days for solids thickened to 3 percent.
Rotary Drum Thickener
Sludge is thickened using a Roediger Rotary Drum Thickener. The thickener has a capacity
of 200 gpm and typically thickens to between 3 percent and 3.5 percent solids. Utilities staff
prefer to thicken the WAS sludge with the thickener prior to aerobic digestion.
Belt Filter Press
Aerated WAS will be dewatered using a portable belt filter press (BFP) and disposed at the
landfill. At this time, the Town is currently investigating installing a permanent BFP facility
adjacent to the aerobic digesters/holding tanks in lieu of the portable unit.
2

PeMis1 NC Oy67Z%
Pironc/-14 EttA i+,, .M 4-0 7 S
Belnick, Tom
From: [e-mail]
Sent: Tuesday, May 12, 2009 9:20 AM
To: Krebs, Rob
Cc: [e-mail]; [e-mail]; [e-mail];
Jaime.Robinson@CH2M_com; Haynie, Jennifer; tom.belnick@ncmail_net
Subject: RE: Town of Mooresville - Equalization Evaluation
Rob - I fully understand the delay. I think the 27th will best - with either early or later in the day working best. John Vest is
going to check with other folks with the Town to verify.
Also - let me give you the current status of things
1. FONSI has been prepared by Jennifer Haynie and is under review at CG&L by Kim Colson. We hope it will be
submitted to the Clearinghouse soon
2. NPDES permit application is prepared for increase to 7.5 mgd and Tom Belnick/NPDES has indicated we can submit it
as soon as the FONSI/EA go to the Clearinghouse
3. Final Engineering Report will be submitted within a few weeks - we held the required public meeting on April 20
4. Plans and Specifications are complete for the plant expansion and upgrade in treatment for the existing plant. They are
ready for submittal - however, these plans do not fully address the peak flow issue - which is what we want to discuss with
you.
We thought we would start with the MRO to discuss - since their are operational issues associated with peak flow
management that then effect what we need to include in terms of facilities and potential NPDES conditions.
I will get back to you to confirm that the 27th works. Please call me if you have any questions - Bill
Bill Kreutzberger
CH2M HILL - Charlotte
Direct Phone - 704.543-3269 (New)
Mobile Phone - 704.904.5918
Email - bill.kreutzberger(a�ch2m.com
From: Krebs, Rob [mailto:[e-mail]]
Sent: Tuesday, May 12, 2009 6:19 AM
To: Kreutzberger, Bill/CLT
Subject: RE: Town of Mooresville - Equalization Evaluation
Sorry it has taken me so long to respond. I will check with Raleigh on the status of the plans and with my staff. We may
be able to schedule something on 5/27 or 5/28. Let me know your availability.
Rob
From: [e-mail][mailto:[e-mail]]
Sent: Thursday, April 30, 2009 7:59 AM
To: [e-mail]
1

Cc: [e-mail]; [e-mail]; [e-mail]
Subject: Town of Mooresville - Equalization Evaluation
Rob - Attached is a technical memorandum regarding an evaluation of equalization option for the Town to manage peak
flows. I will be calling you to arrange a meeting to discuss approaches to implement peak flow management as part of the
expansion of the WWTP to 7.5 mgd.
Seth - I am keeping you in the loop - but we thought we would meet with the Region first because of the current CG&L
workload situation.
Please respond with questions
Bill
Bill Kreutzberger I CH2M HILLS Charlotte Office) Direct Phone (new) [phone]'Mobile [phone]'Email -
bill.kreutzberger4 ch2m.com
2

AttfralE; , d ?<WStoi4 1—
6w4- ib,✓C, tNi / l-, J K 1 1404.14A S w1 P
4a4t4p4„)
MEETING AGENDA
CH2MH I LL
0,1A- gay! J 444 01101 Art t/6" 44( //2.3/0c)
TO:
FROM:
SUBJECT:
MEETING DATE:
LOCATION:
PURPOSE:
•
•
•
North Carolina Department of Environment and Natural
Resources, Division of Water Quality
CHUM HILL
Town of Mooresville WWTP Status Meeting
January 29, 2009, 4 PM
Parker -Lincoln Building/CG&L Conference Room
To update status of Mooresville WWTP Expansion plans as
EA/ER Review enters last phase prior to FONSI and NPDES
Permit application. [Many of the DWQ staff have changed since
the last status meeting one-year ago, plus we are much further
along in the process]
AGENDA
Introductions
Background on Mooresville
Meetings/Activities in 2008
Current and Projected Flo
Update on ATO an
444.9e
ctia 0Hf 31/5
- &Al woes 1lr)
10.Sik tp 304
-Cb✓✓-,� 60/3 Cy
M 44J r'ccla»( 4///c
611/444J-
- 77yt4 0t4 nPc7 3.1ide
c),,,,Acyo 0-/CIS
doe ; 4- i) �v� fii�y '''
?) L-vo lo !irniroflra
• Discussion and Path Forward
Note: We will have a PowerPoint Presentation to guide the discussion
EVA-7o d rPs 1 Cap smie .1)of //0414.m.
OtJQ Fact iLoe
1. Sy /mow/ 4-e 5E.Y4-
Z. G/c. (1du n i
#04.- 1/4 b1.4(
�pu��l /rheas,/,'laCta
,Sum 'e.e2-! moots cAye
ZM61) to i -l► ��" '
MOORESVILLE_DWQ_01292009

7o v vvViv4k c ie v i 1 /, ' I CCTI O Z
6oCf�Ri, uJWTe
etWiror
Cv //AA •
s , — 303(A/) A))4,(ske441.7
QU0-5
S Mooedfurl h.- %s mj — rrivlI
Q. . &you tot d, )1 as edit 1,/ A / ZOO i 7/'4
r
e Cf e* 2ArrA ')Wd) si 1,1..e/41,0 /..:1,4r)rs-1) yairio,-1
a-0-05 1 7 03 07 I
Ski
P.e/f4i - A,, 5.2_01643 ; expert ii/3-6/0$
- 1010114- 3(4 PA4L 0401)
7Qio = 0.S 70c = 9Y'` ®s, to
R/0/off
Say 4' 6,,,cw✓r«i
wl IEM
1 ri 6140;44
(2-11,01o,„ CS -' 19 lYl Sh CO Ldl o o ✓r : /I Q -ko , ►� j ,
02437 Sgt — jq M610 {''a LaJ(rA/otown 5/I !P= 1 tx,}1-e
4- reA,J/wi 41) s 1 S 0161J
I �/
�e 1�0/Mnr► NC007 r9� �f�KG/v�`1-two l�b� I4jdrpuk)C.T(�[ — 1h 1140 — Al
wflv..ne `ode
Lab N"KO NCOU7163S i1raist u iVel f Ib -flaw 1 00,64j01.4_ 01/ MQox,J411.• 11Cr oN?
EPVritairei �1k /bfai. ►H ���
RtV�t Keital— atNog,/ ol0 - YAIJ i4 ��

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
January 13, 2009
YEAR JAN FEB MAR APR MAY JUN JUI. AUG SEI' OCI' NOV DEC
MB Industries-003 Chr Lim: 0.55%
NC0000311/003 Begin 9/1/2005 Frequency: Q Mar Jun Sep Dec
County: Transylvania Region: ARO Subbasin: FRB01
PF: 0.10 Special
7Q10: 27.9 IWC(%) 0.55 Order:
Ceri7dPF 2005 - Pass Pass -- Pass Pass
+ NonComp:Single 2006 - - NR/Pass - Pass -- Pass -- Pass
2007 - - Pass - - Pass - - Pass -- - Pass
2008 - _ Pass - - Pass - - Pass --
2009
McMurry Building WWTP 24hrp/faclim: 90%Bhd Fthd24PF 2005 - - 11 Fail
NC0023710/00I Begin 10/1/2007 Frequency: Q + Mar Jun Sep Dec + NonComp:Single 2006 - - H -
County: Martin Region: WARO Subbasin: ROA09 2007 - - H
PF:0.45 Special 2008 - - H 7Q10: 1200 IWC(%) 0.06 Order. 2009
Fed
Pass - - Pass H
H -- - H -_ .- H
H - - H - -- H
H - - H -
Mebane WWTP chr lim: 90%
NC0021474/001 Begin 11/1/2006 Frequency: Q Jan Apr Jul Oct
County: Alamance Region: WSRO Subbasin: CPF02
PF: 2.5 Special
7Q10: 0.0 IWC(%) 100 Order
Ccn7dPF a 2005 >100 >100(P) - - >100,>100(P) - - Pass >100(P) - - >100
+ NonComp:Single 2006 >100 - - >100 - - Pass - - Pass
2007 >100 - Pass - - Pass - - Pass
2009 pass - - Invalid Pass - Pass - - Pass
2009
Miller Brewing Co. chr lim: 2.1% Ccri7dP1' 2005 - Pass - - Pass - - Pass - - Pass
NC0029980/001 Begin 8/1/2007 Frequency: Q Feb May Aug Nov + NonComp: Single 2006 - Pass -- Pass - - Pass - - Pass
County: Rockingham Region: WSRO Subbasin: ROA03 2007 - Pass - - Pass - - Pass - - Pass
PF: 5.2 Special 2008 - Pass - - Pass - - Pass - - Pass
7Q10: 313 IWC(%) 2.51 Order: 2009
Millpond WTP - Bayboro Ac P/F Monit: 90s/o Mysid Mysd24PE 2005 - - - - - - - - - - -
NC0088340/001 Begin 8/1/2007 Frequency: Q Mar Jun Sep Dec ' NunComp 2006 - - - - - - - - - - - -
County: Pamlico Region: WARO Subbasin: NEUI3 2007 - - - - - - - - H Fail - Pass
PF: Special 2008 - Pass - - Pass -- Pass -
7Q10: NA 1WC(%)NA Order 2009
Mocksville WWTP Bear Creek chr lim: 37%
NC0050903/001 Begin 4/1/2005 Frequency: Q Feb May Aug Nov
County: Davie Region: WSRO Subbasin: YADO6
PF: 0.25 Special
7Q10: 0.65 IWC(%) 37 Order:
Ceri7dPF Y 2005 - Pass - - Pass,Pass - - Fall 49.25 >74 Pass
+ NonComp:Single 2006 - Pass - - Pass - - Pass - - Pass
2007 - Pass - - Pass - - Pass - - Pass
2008 _ Pass - - Pass - - Pass - - H
2009
Mocksville WWTP Dutchman's Cr. chr lim: 7%
NC0021491/001 Begin 8/1/2005 Frequency: Q Jan Apr Jul Oct
County: Davie Region: WSRO Subbasin; YADO5
PF: 0.68 Special
7Q10: 2.54 IWC(%) 6.57 order.
Ceri7dPF v 2005 Pass - - Pass - - Pass - - Pass - -
+ NonComp:Single 2008 Pass - - Pass - - Pass - - Pass - -
2007 Pass - - Pass - - Pass - - Pass - -
2008 Pass - - Pass - - Pass - >74(P),Pass 45.3(P),Pass Pets,>28(P) Pass>28(P)
2009
MonroeWWTP chr lim: 90% Ceri7dPF 2005 - - Pass Pass - Pass - - Fail >100,55.12 >100,>100 Pass
NC0024333/001 Begin 9/1/2004 Frequetcy: Q Mar Jun Sep Dec + NonComp:Single 2000 - - Pass - - Pass - - Pass - - Pass
County: Union Region: MRO Subbasin: YADI4 2007 - - Pass - - Pass - - Pass - - Pass
PF: 10.4 Spccinl 2008 - - Pass>100(P) >100(P) >100(P) Past,>100(P) - - Pass - -
7Q10: 0.43 IWC(%)97.40 Onkr: 2009
Moore County WWTP chr lim: 41% Ceri7dPF g 2005 - - Pass - -- Pass - - Pass - - Pass
NC0037508/001 Begin?/1/2005 Frequency: Q Mar Jun Sep Dec + NonComp:Single 2006 - - Pass - -- Fad 14.5 >100 Pass - - Fail
County: Moore Region: FRO Subbasin: LUM50 2007 Invalid 58.0 Pass(s) >100(s) -- Pass - - Pass - - Pass
PF: 6.7 Spacial 2008 _ - Pass >82(P) - -- Pass >100(P) - - Pass>100(P) - -
7Q10: 15.2 IWC(%)40.54 Order'. 2009
Mooresville -Rocky River WWTP chr lim: 90% Ceri7dPF 9 2005 - Pass - - Pass - - Pass - - Pass -
NC0046728/001 Begin 6/1/2008 Frequency: Q Feb May Aug Nov + NonCemp:Single 2006 - Pass - - Foil>100 >100 >100 Pass - - Pass -
County: Itedoll Region: MRO Subbasin: YADII 2007 - Pass - - Pass - -- Pnss.>100(P) - -- Pass.Fail 54.1
PF: 5.2 Special 2008 97.5 Pass - - Pass>10D(P) - Pass - Pass
7Q10: 0.5 IWC(%) 94.15 orkr. 2009
Morehead City WWTP 24hr plf ac lim: 90% mysid Mysd24PF 2005 - Pass
NC0026611/001 Begin 11/1 2007 Frequency: Q + Feb May Aug Nov + NonComp:Single 2006 - Pass
County: Carteret Region: WIRO Subbasin: WOKOJ 2007 - Pass
PF: 1.7 Spacial
2008 - Pass
7Q10: TIDAL IWC(%) NA Order. 2009
9 Pre 2005 Data Available
Pau - -- Pass -
Pass - - Pnss >100 -
Pass - - Poss -
Pass - - Pass -
Pass -
Pass Pass,>100 -
Pass -
Pass
6.5) zl/1ygg?i(ak
LEGEND:
PERM = Pemtit Requirement LET= Administrative Letter- Target Frequency = Monitoring frequency: Q. Quarterly; M-Monthly; BM- Bimonthly; SA. Semiannually; A. Annually; OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7Q10 = Receiving stream low flow criterion (cis) + = quartedy monitoring increases to monthly upon failure or NR Months that testing must occur - ex Jan, Apr. Jul, Oct NonComp = Current Compliance Requirement
PF= Permitted flow (MGD) IWC%=Instream waste concentration 8/8 Pass/Fail tent AC Acute CHR=Chronic
Data Notation: f- Fathead Minnow, • - Ceriodaphnia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; bt - Bad test
Reporting Notation: --- = Data not required; NR - Not reported Facility Activity Status: I - Inactive, N - Newly Issued(To construct); H - Active but not discharging; t-More data available for month in question; = ORC signature needed
31

MONITORING REPORT(MR) VIOLATIONS for:
Permit: nc0046728
Facility Name: %
Major Minor: %
et) t 3 r-v? - AA &a -illy 1//3 .
MRs Between: 1-2006 and 12-2008 Region: `;'%
Param Name: % County:`b
Violation Category: Limit Violation
Subbasin:
Report Date: 01/29/09 Page: 1 of 1
Program Category: %
Violation Action: %
PERMIT: NC0046728 FACILITY: Town of Mooresville - Rocky River WWTP
COUNTY: Iredell REGION: Mooresville
Limit Violation
MONITORING OUTFALL / VIOLATION UNIT OF CALCULATED
REPORT PPI LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE VIOLATION TYPE VIOLATION ACTION
05 -2007 001 Effluent Chlorine, Total Residual 05/14/07 Daily -- weekdays ug/I 18 18,000 Daily Maximum Exceeded No Action, BIMS
Calculation Error
07 -2007 001 Effluent Chlorine, Total Residual 07/05/07 Daily -- weekdays ug/I 18 17,000 Daily Maximum Exceeded No Action, Facility
Reporting Error
07 -2007 001 Effluent Chlorine, Total Residual 07/06/07 Daily -- weekdays ug/I 18 17,000 Daily Maximum Exceeded No Action, Facility
Reporting Error
07 -2007 001 Effluent Chlorine, Total Residual 07/20/07 Daily -- weekdays ug/I 18 15,000 Daily Maximum Exceeded No Action, Facility
Reporting Error
11 -2007 001 Effluent Chlorine, Total Residual 11/15/07 Daily -- weekdays ug/I 18 16,000 Daily Maximum Exceeded No Action, Facility
Reporting Error
06 -2008 001 Effluent Cyanide, Total (as Cn) 06/21/08 Weekly ug/I 5 5.6 Weekly Average Exceeded No Action, Data Entry
Error

Background Information for Town of Mooresville
p�(HOC 'lb 72
Subject: Background Information for Town of Mooresville
From: <[e-mail]>
Date: Wed, 21 Jan 2009 15:38:25 -0700
To: <[e-mail]>
CC: <[e-mail]>, <[e-mail]>, <[e-mail]>,
<j [e-mail] lle.nc.us>
Tom - I left you a voice message but wanted to provide you with some background on the Town of
Mooresville (ToM). We had worked pretty closely with Susan Wilson and wanted to give you some
background. Attached are PDFs for minutes and a PowerPoint presentation from a meeting we had with
DWQ staff about one-year ago that give you some background. What has happened since that time is -
• ToM has revised their flow allocation policy and worked closely with Mooresville RO on any
issues
• DWQ issued a revised NPDES permit with a permit page for 5.5 mgd (Sergei was the permit
writer) - previous capacity was 5.2 mgd
• CH2M HILL has submitted a re -rating request to CG&L for a request to operate at 5.5 MGD
• CH2M HILL has submitted an EA and an ER to CG&L for an interim - 2 mgd expansion of the
WWTP - a more extensive expansion may be proposed in a few years following an up date to the
Town's Master Plan by another consultant
• Revised EA and ER are being submitted to CG&L this week
• Meeting next week is to discuss project status including submittal of an NPDES permit
application when FONSI is issued in coming months
I will try to call you tomorrow afternoon or Friday morning. My contact information is below. After
noon on Friday - my new office phone will be [phone] but mobile will stay the same. I look
forward to discussing this with you
Bill Kreutzberger I CH2M HILL( Charlotte Office [phone] x217 (Mobile
[phone]'Email - bill.kreutzbergerAch2m.com
Content -Description: Mooresville DWQ_T
;Mooresville DWQ_MtngSummary_01252008_final.pdf Content -Type: application/pdf
Content -Encoding: base64
Content -Description: Town of
Mooresville_01252008_v2.pdf
Town of Mooresville_01252008_v2.pdf Content -Type: application/pdf
Content -Encoding: base64
1/22/2009 9:29 AM

MEETING SUMMARY CH2MHILL
Town of Mooresville WWTP Path Forward Meeting
ATTENDEES:
COPIES:
FROM:
DATE:
PROJECT NUMBER:
Town of Mooresville:
Mayor Bill Thunberg
Commissioner Frank Radar
Jamie Justice
John Vest
NC DENR DWQ:
Susan Wilson/ DWQ Western
NPDES
Jackie Newell/DWQ, SPS
Matt Matthews/DWQ, PSB
Paul Rawls/ DWQ SWPS
Deborah Gore/DWQ, PERCS
Town of Mooresville; DWQ; File
CH2M HILL
January 25, 2008, 2 pm
342497
Ken Pohlig/ DWQ, CG&L
By Phone from Regional Office:
Rob Krebs/DWQ MRO
Dee Browder/DWQ MRO
Mike Parker/DWQ MRO
CH2M Hill:
JD Solomon/RDU
Jim Nagel/CLT
Bill Kreutzberger/CLT
Jaime Robinson/CLT
Handouts
Draft Sewer Capacity Allocation Policy
Presentation Slides
Introductions
After introductions, Town of Mooresville Mayor Bill Thunberg opened the meeting by
providing background on the Town's situation, undergoing tremendous growth while
looking to the future with planning based from the 2005 Master Plan. He covered the
Town's status as the "Micropolitan" City of America in Site Selection magazine and a
summary of the Town's desire to be an employment center as well as maintain its
residential character. Keys to employment include Lowe's home improvement headquarters
and the motorsports industry.
Other key points include the Town's policy to adjust utility rates annually, with 11, 000
customers currently and growing. The Town now has an inclining block rate structure for
water service. The Mayor also mentioned that a stormwater management program is being
phased in early as will be required by the NPDES Phase II permit. Other planning activities
include a plan to remove several small package plants within its service area and the
development of a Draft Allocation Policy for sewer capacity.
To plan for sound financial management, the Town is using a phased approach to meet 2030
wastewater projections so that as the Town's customer base grows, they are building a
reserve of funds over time.
CLTIMOORESVILLE_DWO_MTNGSUMMARY_01252008_FINALDOC 1
COPYRIGHT 2009 BY CH2M HILL INC. • COMPANY CONFIDENTIAL

TOWN OF MOORESVILLE WWTP PATH FORWARD MEETING
It was also stated that the Town board receives monthly briefings on its sewer capacity
allocation numbers so that both staff and elected officials are up to date.
After the Mayor's statements, three members of the Mooresville DWQ regional staff joined
via conference call to participate in the meeting.
Bill Kreutzberger reviewed the presentation agenda and proceeded with the presentation.
Background on Town of Mooresville
The project is considering WWTP capacity expansions from 5.2 mgd to 15 mgd, and
subsequently to 19 mgd, over the next 20 years. Currently, the facility is operating at about
60% of its permitted maximum month capacity or about 3 mgd.
An overview of the Town and its interbasin transfer (IBT) situation was presented. The
Town pulls its water from Catawba, discharges its wastewater to Dye Branch (Rocky River,
Basin) and also has consumption use in the South Yadkin River Basin. The Town's
grandfathered IBT amount is 9.54 million gallons per day (mgd).
A review of the Town commitments includes
• Maintaining compliance at the plant
• Addressing Inflow & Infiltration issues (I &I)
• Planning for Reuse (primarily in Catawba River Basin)
• Continued Development of a Stormwater Program
Regarding I &I, John Vest summarized their contract with USI, including metering of
subbasins, in-house maintenance and rehab of manholes, etc. The Town also plans an aerial
sewer elimination program.
A question was posed about enforcing illicit discharges. It was confirmed that the Town is
looking for illicit discharges and will be conducting smoke testing, etc. to find I & I.
A question was posed on how to address problems with connections to their lines. The
Town has no formal policy as of yet for that. However, The Town will identify some of these
problems with their I & I program.
After a summary of the current stormwater program, Susan Wilson encouraged the Town to
set a target date for submittal of its NPDES Phase II application. Matt Matthews stated that a
Phase II application and accelerated stormwater program will help sell the re -rating and
interim phase of the WWTP expansion. DWQ asked about status of this. John Vest replied
that the Town had been given a submittal deadline and also needed to work on an
education program.
Current Flow Commitment
The Town's draft allocation policy was brought to the meeting, and the Town will also
provide a copy to regional office. The Town will also have a public meeting to discuss the
policy. The Mayor stated the Town is open to comments related to best practices, expressing
the Town's hopes it could become a model for other municipalities. Commissioner Radar
CLTIMOORESVILLE_DWO_MTNGSUMMARY 01252008_FINALDOC 2
COPYRIGHT 2009 BY CH2M HILL. INC. • COMPANY CONFIDENTIAL

TOWN OF MOORESVILLE WWTP PATH FORWARD MEETING
stressed the importance of getting the community input in order to make sure that there will
be no unintended consequences.
Phased Planned Expansions
The Town's request for an additio allons of capacity via re -rating of the facility
was briefly discussed. This buys the ' : me to further develop its next steps and
investigate regional approaches.
The next step, referred to as the Interim Phase, will be a 2 to 4 mgd expansion accomplished
with a package plant design. The plant would continue to discharge to Dye Branch. This
upgrade would:
• Integrate package plant into future plans
• Need filters and UV upgrades so the whole plant can function at 5/1 limits for BOD and
ammonia -nitrogen
A clarification of nomenclature related to phases included identifying: fy
• Re -rating: Increase from 5.2 to 5.5 mgd permitted capacity ✓
• Interim Phase: 2 - 4 mgd expansion (total of 7.5 to 9.5 mgd)
• Phase I: Additional capacity to a total of 10-15 mgd
The Mayor described how these early steps let them move forward as they explore
regionalization/reuse, etc. Matt Matthews summarized it as an iterative process. The Mayor
and JD Solomon described how short term plans allow the Town to build a customer base
before incurring large capital cost of going to Lake Norman with a big discharge pipe to
address IBT, and to build demand of reuse.
The review of long term options included the review of a regionalization approach and how
long term plans (10 -15 mgd, etc.) may be clarified later based on interest and feasibility.
Review of Re -Rating Application Package
Review of application package covered:
• Summer limits of 16/2 (justified in modeling memo previously provided to DWQ)
• Winter limits of 24/4 would stay in place
• Discharge of flow would stay in Dye Branch
Matt Matthews posed a question whether, long term, Dye Branch will be still in the plan as
a discharge, with still 2 discharges. In response it was confirmed that there will be still 2
discharges at Dye Branch and Lake Norman. Further, it was explained that this allows for
the use of package plant in later stages of growth period and for the possibility that the
consumptive use goes up in the Rocky River Basin and that then Dye Branch discharge
would go down.
In response to the question of whether the grandfathered IBT amounts expire, it was stated
that there is no changing the grandfathered amount - it does not expire. IBT certificates also
do not expire but typically have a re -opener clause at the discretion of the Environmental
Management Commission (EMC). Susan Wilson also stressed that getting discharge out of
Dye Branch is not a "have to." Bill Kreutzberger provided a review of IBT basics.
CLTIMOORESVILLE_DWQ_MTNGSUMMARY_01252008_FINAL.DOC 3
COPYRIGHT 2009 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL

TOWN OF MOORESVILLE WWTP PATH FORWARD MEETING
As part of the review of the re -rating request, Susan Wilson stated that DWQ Constructions
Grants &Loans (CG&L) still needs to review the memo supporting re -rating. CG&L will do
that once DWQ develops a draft permit. It is anticipated that further discussion with CG&L
may be necessary.
The Town is proceeding with its Interim Phase planning while the re -rating is being
processed. The re -rating will buy the Town some time as it conducts the necessary
permitting for the Interim Phase. An EA is required for the package plant and will be
submitted quickly. It was agreed that the EA would not focus on the still -developing long
term plan while regionalization is being investigated. A cover letter will go to CG&L
emphasizing that the Interim Phase leaves out a Lake Norman discharge. This will speed
permitting of the Interim Phase.
It was stated that Duke Energy provided comments on the Lake Norman model before
Christmas of last year. The comments focused on dissolved oxygen (DO) and temperature.
CH2M HILL 's focus has been on nutrients and chlorophyll a at the request of DWQ. It was
noted that CH2M HILL will meet with Duke in February to resolve any additional
comments or questions.
As part of the review of future timeline discussion, it was brought to the attention that the
NPDES permit may require modification 3 times, with the third time being the long-term
regional option. While it was acknowledged that this is not necessarily a desired approach
by DWQ, it will allow for further investigation of a regional option which DWQ supports.
It was agreed that the goal is a single EA, however two EAs are likely. JD stated that the
Town will need an interim solution online by 2009 or a regional alternative..
Susan provided a summary timeline:
• 2007 to 2009 - 5.5 mgd re -rating in place
• 2009 to 2013 - Package Plant adds additional capacity
• 2013 and beyond - New expanded plant and/or potential regional solution to capacity
needs
JD stated that this was likely the case but that we would be sensitive to how flows (actual
and allocated) matched up to the projected flows curve. Projections are for about 1 mgd
increase per year. The Mayor stressed that a regionalization study is complex because it
needs to also consider withdrawals because of water, wastewater and IBT issues.
Bill Kreutzberger stated the CH2M HILL is proceeding ahead with EA. Susan stated that
DWQ is going out on limb with the Town because the limits being required for the re -rating
differ from the Basin Plan. The Mayor responded with a commitment to get the NPDES
Phase II application in as soon as possible. Matt Matthews expressed concerns similar to
those of Susan Wilson. The Mayor asked for DWQ to identify any further actions that the
Town can take to facilitate the process. Susan Wilson thanked CH2M HILL for running the
water quality model for the re -rating to speed up the process of submitting to EPA.
Susan Wilson asked whether the Regional Office staff had questions. Susan Wilson agreed
to touch base Monday with the Regional Office.
CLTIMOORESVILLE_DWQ_MTNGSUMMARY 01252008_FINAL.DOC 4
COPYRIGHT 2009 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL

TOWN OF MOORESVILLE WWTP PATH FORWARD MEETING
DWQ made the recommendation for the Town to send the draft allocation policy to the
Regional Office, to be followed by a later meeting to allow for review time prior to the
meeting.
DWQ summarized the allocation situation by stating that the way the Town manages
allocation is solely up to the Town, and the way the Town complies with its permit is up to
the Town. DWQ expressed their appreciation for the time and effort put into the policy
development. DWQ also pointed out that many other municipalities do not know where
they are in terms of allocation. They also stressed that the State only reviews the policy, but
does not officially approve policy because the Town bears the responsibility to manage it.
The Mayor concluded the meeting by stating that the Town views DWQ as partners in this
effort. He stressed the Town's commitment to getting this task done the right way, and
therefore the Town values DWQ's input. The Mayor reiterated the Town's hopes that their
allocation policy could become a model for other communities. The suggestion was made to
share the policy with the League of Municipalities for this purpose.
CLTIMOORESVILLE_DW(LMTNGSUMMARY 01252008_FINAL.DOC 5
COPYRIGHT 2009 BY CH2M HILL, INC. • COMPANY CONFIDENTIAL

CH2MHILL
404.
Town or 1Vrocj re-s
River
\iFIT arision
January 25, 2008

• a•'•
Rocky River
WW7PExpansion
• Introductions
• Bacfhground on Mooresville
• Current Flow Commitment
• Phased Planned Expansions
• Review of Re -Rating Application Package
• Discussion and Path Forward

CH2MHILL
j--/?_ 0 R WWI[/P .F1

.BIL\ KGROUI f_D
Rocky River
WWTP Expansion
• Rapid growth leading to wastewater
capacity needs
- Master Plan finalized in 2006
-- 20 year capacity need -19 mgd
- Interim phase -15 mgd
• Commercial, industrial growth strong
— Lowe's headquarters
— New exit from 1-77
arilr�

80,000
70,000
60,000
0
50,000
= 40,000
0
Q. 30,000
0
n.
20,000
10,000
Mooresville Service Area
Projected Population Growth
74,031
31,674
22,792
0 t f t
2000 2005 2010 2015 2020 2025 2030
Year

25.0
Rocky River WWTP Projected Capacity Needs
(Maximum Month Flow)
20.0 --
T
E 15.0
3
0
w
w
10.0 --
5.0 -
0.0
Existing Capacity = 5.2 mgd
18.7
5.65
2030 Projected Needs
23
3.44
2000 2005 2010
2015 2020 2025 2030 2035
Year
��" MMADF

BACtTGR�'UJII�J
Rocky River
WWExpansion
• Current Grandfathered Amount = 9.54
mgd
• Water withdrawals from Catawba River
Basin
• Current discharge to Dye Branch (Rothy
River Basin)
• Current consumptive use in South Vadktin
River Basin
r
ar!L •LrT 2,5 %(Jo

Town of Mooresville
Future Inter -Basin Transfer
(IBT)
Mooresville
WT
Lake Norman
Catawba County
•
1A441113
' 1
` Rocky Riv
Mooresville
aakvn
s�
,,A'
...........•••'•••.• 51ll veYBa
i
•
ocky�•
WRF
1.Dy_Branch !:
r
ever

ye
::.
..
V
Rocky River
WW 1 P Expansion
J
Ti l Sri�rlI`r���l '1`rJ
✓ Compliance at WWTP
✓ Reduction of Infiltration & Inflow
/ Reuse
✓ Stormwater Programs

r) C 17 P
•
•
....
Rocky River
WWTP Expansion
IDW1ri Pt17It1
• Inflow & Infiltration Program
— FY 07-08 Budget includes $250, 000
• Plan to budget as on -going program
- 2008: Beginning Sewer System Evaluation
Survey
• Goal to evaluate system over next 5 years
• Crew established to repair in-house
- Aerial Sewer Crossing Elimination Program
• Reuse included in long term planning

BAGfGROUJ ID
Rocky River
WWTP Expansion
J ,
ctivi
• Stormwater Program
Meeting Phase 11 requirements in stages before
application deadline
- Land Development Design Standards Handbook
- Runoff leaving the site post -development shall not
exceed the pre -development volume for the local2-
year, 24-hour storm event for all development.
Runoff rate leaving the site post -development shall not
exceed the stormwater runoff rate leaving the site pre -
development for the local 1-year, 2-year, and 10year,
24-hour duration storm events

CKGRO.Ut
Rocky River
WWTP Expansion
r-
Jc��j_�i
• Stormwater Program
- Stormwater treatment shall achieve 85% TSS
removal from the first one -inch of rainfall
- General Requirements: Minimum of 35 foot
buffer on perennial and intermittent surface
waters
- WSW Requirements: increase to 50 feet, or
100 feet with high density development
- These engineering standards adopted in
October 2007

410 CH2IVIHILL
f/r/r/r/T--o

•
•• a
•
•.0.oId, - New allocation policy beingdeveloped to
•
ackgrounci \ vrrH'�/loter Flows
• Wastewater Flows
- Actual flow: 3.1 mgd (60% of capacity)
- 5.2 mgd rated capacity
• Current and Planned Commitments
••, address current and future committed
capacity
Rocky River
WW7PExpansion

• • 44
r r.r3F
,Z1 4
`, • h`;'-11,'::-.;1-7' '7
CH2111/11HILL
r2 r/r/Frri)ILJLIOIJ
ed
risions

CH2MHILL
a: p: 'tier
Ro River
Expansion
r r
rfri rMr r a ,r; DT r�11-"i
CJ
• Historical Data supports facility re -rating from 5.2 to
5.5 mgd
• Adding 300,000 gallons a day of capacity — would
continue to discharge to Dye Branch with no
operational changes or modifications
• NPDES re -rating permit application submitted this
month to DWQ
• Re -rating needed to provide Town with breathing
room under allocation guidelines while implementing
intermediate solution and conducting long-range
planning
Jommary 25,. 20084

CHOVIHILL
F;_r) RIPA 1ST (21_
.r r A .1 r'
Rocky River
WWTP Expansion
l r air1s of via acka
• Interim phase would increase discharge to Dye
Branch
• Dye Branch and Rocky River are 303(d) listed
streams
• Modeling of potential for sediment transport
concerns with increased discharge
• Increased discharge will not exceed
grandfathered IBT amount

CH2rVIHILL
Rocky River
WWTP Expansion
,\ ISTGI P
E-7 P
maim
r-I
il-rt-rCr- (1.
• "Package" Plant
- Increase total plant capacity by 2 to 4 mgd
- Need to meet permit limits of BODS of 5 mg/L
and NH3-Nof1mg►/L
jegigag, 2008

A S; tr-7D P A p r A IS
•
.'••
•
•
Rocky River
WWTP Expansion
ifltE'1LiHi1 k ri r
• Integrate "packzage" plant into the
Phase 1 Facility Design/Expansion
- Residuals Filtrate Treatment
- Raw Wastewater Treatment
• Other facilities/equipment could also
be integrated

CH2EVIHILL
FTri\[D) EfdiPLA-IS
rmi
rrii-r-trrn w/.1•1r-)
,
Package Plant
(incl Headworks)
Rocky River
WWTP Expansion
•41101111111.11111M•
January 2'5, 2008,

1.
Rocky River
WW1 P Expansion
Step 3: 1Lc.irig f
I5mgd
• Discharge to Dye Branch and Laze Norman
• Addition of odor control, primary treatment,
anaerobic digestion, sludge blending, Lake
Norman Pump Station
• Explore options for more affordable regional
solutions
- Board allocated funds in FYO8
- Board working with School of Government to
promote regionalization
I 0
:i�111 �r,l

CH2MHILL
1Pirtase 1P rp-poisbd.
Site PI ar
Primary
Clarifiers
Primary Sludge
Pump Station
Immomol.
Generators
••••••••••
Electrical
Substation
Headworks
Lake Norman
Pump Station
Filtrate EQ and
Treatment
Blower Building
A/O
Basins
• •
4 0,,, ,
••vit' ; Digestion
Facility
Odor L1,14
Control
Sludge
414, Secondary rr' Blending
Clarifiers
Tanks
• Anaerobic
ifipie, gift it
•'INA RAS/WAS Pump Station r•
w/RAS Denite Zone
Chemical Facility
Thickening
Dewatering
Building
January 25, 2008

CH2MHILL
r ri? r/Pf 'W./7TP rr-
ISCU I I
APPLIC

•
.
•
. ..
•
•
•
.7 ▪ .Y �.,... •.•
•
•,. •
. 11.E
•
•
Rocky River
WWTPExpansion
• January 2008 request to DWQ for an
additional 3001R in capacity
-- Re -rating of existing facility
- DWQ is concerned with future expansion plans
• Additional flow would discharge to Dye
Branch
• Summer Limits of 16/2
• Mooresville commitment to continue
addressing stormwater issues via Phase II
program

�p _r,f_
\ r l I r'r C
uture E
• Interim solution — pachage plant
• Environmental Assessment Required
• Regionalization Study - WSACC to east and
Catawba to west in search of most affordable
solution
• Long term capacity needs addressed, possibly
through regional solution
RockyRiver
WWTPExpansion

PATH F 0R V7ARD
•
t, • it *.
Rocky River
WWTP Expansion
°
fteview o F Fij I tut'
• Permitting process will include NPDES, the
Environmental Assessment, and any
necessary 401/404 Permitting.
• The NPDES application for an expansion is
considered by DWQ after the completion of
the EA process (FONSI)
• Goal is a single EA submitted in summer
2008
• Phasing of this project may require 2 EAs

• CH2MHILL
•
Rocky River
WWTPExpansion
Review
• Permitting for the pact age plant phase will begin in
spring 2008
- permit review can take more than six months
- NPDES permit for increased Dye Branch discharge is
required
• Permitting for the larger expansion will begin upon
substantial completion of the regionalization study
- may take longer to complete considering an additional
discharge location and potential interbasin transfer
consideration
• Permit conditions may be required by DENR
Jnuary 25, 200a

Yadkin River Basin Subbasin 03-07-10
Assessment
Waterbody and Description Unit (AU)
Class Subbasin Impaired Year
Use Listed Category and Reason for Listing
Potential Source(s)
Miles or Acres
Yadkin River Basin Subbasin 03-07-10
Brown Creek 13-20b C 03-07-10
5
28.5 FW Miles
From mouth of Lick Creek to Pee Dee River
PEE DEE RIVER 13-(15.5)
O 1998 6 Impaired biological integrity
O 1998 5 Standard violation: Low Dissolved
Oxygen
WS-V&B 03-07-10 5
Agriculture
15.3 FW Miles
From Norwood Dam to mouth of Turkey Top Creek
AL 1998 5 Standard violation: Low Dissolved Hydromodification: Dam Release
Oxygen
Minor Municipal Point Source
Yadkin River Basin Subbasin 03-07-11
Clarke Creek 13-17-4 C 03-07-11 6 5.5 FW Miles
From source to Rocky River
Clear Creek 13-17-8-4-1 C 03-07-11
O 1998 6 Impaired biological integrity Off Farm Animal Holding/
Management Area
6
1.0 FW Miles
From source to McKee Creek
Coddle Creek
13-17-6-(5.5) C 03-07-11
O 1998 6 Impaired biological integrity Urban Runoff/Storm Sewers
O 1998 4a Standard violation: Fecal Coliform Land Development
Agriculture
6
14.5 FW Miles
From a point 0.2 mile upstream of N.C. Hwy. 73 to Rocky River
Dye Creek (Branch) 13-17-2 C 03-07-11
AL 1998 6 Impaired biological integrity Source Unknown
6
From source to Rocky River
AL 1998 6
Oyaktiu- 14a3v4_,
Impaired biological integrity
North Carolina 303(d) List- 2006
Yadkin Basin 03-07-11
4.4 FW Miles
Minor Municipal Point Source
Urban Runoff/Storm Sewers
glitf
Tuesday, June 19, 2007
Page 122 of 125

v
Yadkin River Basin
r
Subbasin 03-07-11'
Assessment ClSubbasin Impaired Year
Class uasn
Waterbody and Description Unit (AU) Use Listed Category and Reason for Listing
Potential Source(s)
Miles or Acres
McKee Creek 13-17-8-4 C 03-07-11 5 6.9 FW Miles
From source to Reedy Creek
O 1998 4a Standard violation: Fecal Coliform Land Development
O 1998 5 Historical listing decision: Sediment Urban Runoff/Storm Sewers
Minor Non -Municipal
Agriculture
Rocky River 13-17a C 03-07-11
5
34.1 FW Miles
From source to mouth of Reedy Creek
AL 1998 5 Standard violation: Turbidity
AL 1998 6 Impaired biological integrity
O 1998 4a Standard violation: Fecal Coliform
Urban Runoff/Storm Sewers
Source Unknown
Yadkin River Basin Subbasin 03-07-12
Clear Creek 13-17-17 C 03-07-12 5 13.1 FW Miles
From source to Rocky River
AL 2004 5 Standard violation: Turbidity
Crooked Creek 13-17-20 C 03-07-12 5 12.9 FW Miles
From source to Rocky River
AL 2004 5 Standard violation: Turbidity
Goose Creek 13-17-18a C 03-07-12 5 3.2 FW Mlles
From source to SR 1524
O 1998 5 Standard violation: Fecal Coliform Urban Runoff/Storm Sewers
Construction
Irish Buffalo Creek 13-17-9-(2) C 03-07-12 5 16.7 FW Miles
From Kannapolis Water Supply Dam to Rocky River
AL 2004 5 Standard violation: Turbidity
North Fork Crooked Creek 13-17-20-1
C 03-07-12 5 12.0 FW Miles
From source to Crooked Creek
AL 1998 6 Impaired biological integrity Urban Runoff/Storm Sewers
AL 2004 5 Standard violation: Turbidity
North Carolina 303(d) List- 2006 Tuesday, June 19, 2007
Yadkin Basin 03-07-12 Page 123 of 125