NC0043532_Special Order By Consent_20190806

WWI<
LETTER OF TRANSMITTAL DICKSONr
community infrastructure consultants
616 Colonnade Drive Charlotte,North Carolina 28205 704.334.5348 tel.
TO: Division of Water Resources DATE: 7/30/2019
NPDES Compliance&
Expedited Permit Unit
1617 Mail Service Center RE: West Stanly Wastewater Treatment Plant
Raleigh, NC 27699-1617 Application for Special Order by Consent
ATTENTION: Derek Denard Stanly County,North Carolina
We are sending via: ❑Overnight ❑Regular Mail ❑Pick-up ]Hand Delivered
The following items: ❑ Correspondence ❑ Plans ❑ Specifications ❑ Other as listed below:
COPIES DATE NO. DESCRIPTION
3 7/30/2019 1 Application for Special Order by Consent
1 7/30/2019 2 Sealed check to be used for processing fee
THESE ARE 1'1ZANSMITTED as checked below:
®For Approval ❑As Requested ❑Approved as Submitted ❑Returned for Corrections
❑For Your Use ❑For Review and Comment ❑Approved as Noted ❑Forward to Subcontractor
REMARKS:
COPY TO: SIGNED: &(...). •

sictcv
STANLY COUNTY
July 23, 2019
Mr.Corey Basinger
NCDEQ Water Quality Section
Mooresville Regional Office l ECEIVED/NCDEQ/DWR
610 East Center Avenue, Suite 301
Mooresville, North Carolina 28115 AUG 0 6 2019
Re: West Stanly Wastewater Treatment Plant Water Quality
Application for Special Order by Consent Permitting Section
Stanly County,North Carolina
Mr.Basinger,
On behalf of Stanly County, enclosed please find one (1) original and two (2) copies of the
completed application form for a special order by consent (SOC), three (3) copies of the technical
memorandum evaluating the West Stanly Wastewater Treatment Plant, and one (1) original and
two (2) copies of the resolution to pursue the SOC from the Stanly County Board of Commissioners.
Further,enclosed please find the application processing fee of$400.00.
Thank you again for continuing to work with Stanly County at our Wastewater Treatment Facility.
We look forward to working with the NC Dept. of Environmental Quality (NC DEQ) staff in a very
positive and proactive manner as we continue to improve the facility's environmental stewardship.
If upon receipt and review of this information you have any further questions, or would like to
discuss this matter in more detail, please do not hesitate to contact me at your earliest convenience
at(704) 986-3601 or our consultant,Jimmy Holland with W.K Dickson at(704) 334-5348.
Sincerely,
Andrew M. Lucas
County Manager
Enclosures
cc: Duane Wingo,Utilities Department Director-Stanly County
Jimmy Holland, Project Manager-W.K. Dickson&Co., Inc.
704.986.3600
704.986.3133
www.stanlycountync.gov
Central Administration
1000 N.First Street,Suite 10A,Albemarle,NC 28001

Table of Contents
Section Page
SOC Application Form 1-1
Section 3 Supplemental—Additional Flow/Flow Reallocation 1-6
Section 4 Supplemental—Necessity Narrative 1-7
Section 5 Supplemental—Engineer's Certification 1-11
Section 6 Supplemental—Predicted Compliance Schedule 1-12
Section 7 Supplemental—Funding Sources Identification 1-13
Tables Page
Table 4.1 Notices of Violation 1-9
Appendix A Offer and Acceptance for a State Loan Increase 1-14
Application for Special
Order by Consent
Issue Date:July 2019
TOC-i

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
APPLICATION FOR A SPECIAL ORDER BY CONSENT (SOC)
I. PERMIT RELATED INFORMATION:
1. Applicant(corporation, individual, or other): County(a body politic and corporate of the State
of North Carolina)
2. Print or Type Owner's or Signing Official's Name and Title: Stanly County
3. Facility Name (as shown on Permit): West Stanly Wastewater Treatment Plant
4. Owner Phone: [phone] (or) N/A
5. Owner Email: [e-mail]
4. Application Date: July 2019
5. NPDES Permit No. (if applicable): NC0043532
6. Name of the specific wastewater treatment facility (if different from 1.3. above): N/A
II. PRE-APPLICATION MEETING:
Prior to submitting this completed application form, applicants must meet with the appropriate
regional office staff to discuss whether or not an SOC is appropriate for this situation. Please note
the date this meeting occurred and who represented the permittee:
Representative: Duane Wingo Date: 3/27/2019
III. ADDITIONAL FLOW OR FLOW REALLOCATION:
In accordance with NCGS 143-215.67(b), only facilities owned by a unit of government may request
additional flow.
Additional flow may be allowed under an SOC only in specific circumstances. These circumstances
may include eliminating discharges that are not compliant with an NPDES or Non-discharge permit.
These circumstances do not include failure to perform proper maintenance of treatment systems,
collection systems or disposal systems. When requesting additional flow, the facility must include
its justification and supporting documentation.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-1

If the requested additional flow is non-domestic, the facility must be able to demonstrate the ability
to effectively treat the waste and dispose of residuals. The applicant must provide a detailed analysis
of the constituents in the proposed non-domestic wastewater.
The total domestic additional flow requested: 110,000 gallons per day.
The total non-domestic additional flow requested: N/A gallons per day.
The total additional flow(sum of the above): 110,000 gallons per day.
Please attach a detailed description or project listing of the proposed allocation for additional flow,
with an explanation of how flow quantities were estimated. Further, any additional flow requested
must be justified by a complete analysis, by the permittee, that additional flow will not adversely
impact wastewater collection/treatment facilities or surface waters.
IV. NECESSITY NARRATIVE:
Please attach a narrative providing a detailed explanation of the circumstances regarding the
necessity of the proposed SOC. Include the following issues:
• Existing and/or unavoidable future violations(s) of permit conditions or limits(s),
• The existing treatment process and any process modifications that have been made to date to
ensure optimum performance of existing facilities,
• Collection system rehabilitation work completed or scheduled (including dates),
• Coordination with industrial users regarding their discharges or pretreatment facilities.
Identify any non-compliant significant industrial users and measure(s) proposed or already
taken to bring the pretreatment facilities back into compliance. If any industrial facilities are
currently under consent agreements,please attach these agreements,
• Date and outcome of last Industrial Waste Survey,
• Whether or not the facilityis actingas a regional facilityreceivingwastewater from other
g
municipalities having independent pretreatment programs.
V. CERTIFICATION:
The applicant must submit a report prepared by an independent professional with expertise in
wastewater treatment. This report must address the following:
• An evaluation of existing treatment units, operational procedures and recommendations as to
how the efficiencies of these facilities can be maximized. The person in charge of such
evaluation must sign this document.
• A certification that these facilities could not be operated in a manner that would achieve
compliance with final permit limits. The person making such determination must sign this
certification.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-2

• The effluent limits that the facility could be expected to meet if operated at their maximum
efficiency during the term of the requested SOC (be sure to consider interim construction
phases).
• Any other actions taken to correct problems prior to requesting the SOC.
VI. PREDICTED COMPLIANCE SCHEDULE:
The applicant must submit a detailed listing of activities along with time frames that are necessary to
bring the facility into compliance. This schedule should include milestone dates for beginning
construction, ending construction, and achieving final compliance at a minimum. In determining the
milestone dates,the following should be considered:
• Time for submitting plans, specifications and appropriate engineering reports to DWR for
review and approval.
• Occurrence of major construction activities that are likely to affect facility performance
(units out of service, diversion of flows, etc.)to include a plan of action to minimize impacts
to surface waters.
• Infiltration/Inflow work, if necessary.
• Industrial users achieving compliance with their pretreatment permits if applicable.
• Toxicity Reduction Evaluations (TRE), if necessary.
VII. FUNDING SOURCES IDENTIFICATION:
The applicant must list the sources of funds utilized to complete the work needed to bring the facility
into compliance. Possible funding sources include but are not limited to loan commitments,bonds,
letters of credit,block grants and cash reserves. The applicant must show that the funds are available
or can be secured in time to meet the schedule outlined as part of this application.
If funding is not available at the beginning of the SOC process,the permittee must submit a copy of
all funding applications to ensure that all efforts are being made to secure such funds.
Note: A copy of the application should be sufficient to demonstrate timeliness unless regional office
has reason to request all information associated with securing funding.
THE DIVISION OF WATER RESOURCES WILL NOT ACCEPT THIS APPLICATION
PACKAGE UNLESS ALL OF THE APPLICABLE ITEMS ARE INCLUDED WITH THE
SUBMITTAL.
Required Items:
a. One original and two copies of the completed and appropriately executed application
form, along with all required attachments.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-3

• If the SOC is for a City/Town, the person signing the SOC must be a ranking elected
official or other duly authorized employee.
• If the SOC is for a Corporation / Company / Industry / Other, the person signing the
SOC must be a principal executive officer of at least the level of vice-president, or his
duly authorized representative.
• If the SOC is for a School District, the person signing the SOC must be the
Superintendent of Schools or ot
her duly authorized employee.
Note: Reference to signatory requirements in SOCs may be found in the North Carolina
Administrative Code [T15A NCAC 2H .1206(a)(3)].
b. The non-refundable Special Order by Consent(SOC)processing fee of$400.00. A check
must be made payable to The Department of Environment and Natural Resources.
c. An evaluation report prepared by an independent consultant with expertise in wastewater.
(in triplicate)
APPLICANT'S CERTIFICATION:
(NO MODIFICATION TO THIS CERTIFICATION IS ACCEPTABLE)
I, Ana(tt.✓ i 1 Z4,�`5 , attest this application for a Special Order by Consent
(SOC) has been reviewed by me and is accurate and complete to the best of my knowledge. I
understand if all required parts of this application are not completed and if all required supporting
information and attachments are not included, this application package may be returned as
incomplete. (Please be advised that the return of this application does not prevent DWR from
collecting all outstanding penalties upon request). Furthermore, I attest by my signature that I
fully understand that an upfront penalty, which may satisfy as a full settlement of outstanding
violations, may be imposed. {Note: Reference to upfront penalties in Special Orders by Consent
may be found in the North arolina Administrative Code [T15A NCAC 2H .1206(c)(3)].}
Date _? ?-31/
Signature of Signing Official
liyare,G.,. M_ ‘<.X45
Printed Name of Signing Official
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-4

THE COMPLETED APPLICATION PACKAGE, INCLUDING THE ORIGINAL AND TWO
COPIES OF ALL SUPPORTING INFORMATION AND MATERIALS, SHOULD BE SENT TO
THE FOLLOWING ADDRESS:
NORTH CAROLINA DIVISION OF WATER RESOURCES
POINT SOURCE BRANCH
1617 MAIL SERVICE CENTER
RALEIGH,NORTH CAROLINA 27699-1617
IF THIS APPLICATION IS FOR A NON-DISCHARGE SYSTEM, THEN SEND TO:
NORTH CAROLINA DIVISION OF WATER QUALITY
AQUIFER PROTECTION SECTION
1636 MAIL SERVICE CENTER
RALEIGH,NORTH CAROLINA 27699-1636
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-5

Application for Special Order by Consent
Section III—Additional Flow/Flow Reallocation
Further discussed in section IV and the technical memorandum,the West Stanly
Wastewater Treatment Plant("WSWWTP")is experiencing higher flows than it can adequately
treat under current design parameters.After re-evaluation of the WSWWTP design with a higher
peaking factor, and site evaluation including measurement of current clarifier detention time,WK
Dickson would like to propose the effluent flow be limited to 785,000 GPD to accurately reflect the
current treatment capacity of the plant.Of this 785,000 GPD,WK Dickson would like to propose
that the WSWWTP be limited to 675,000 GPD upon entering into the SOC and that the remaining
110,000 GPD be released to Stanly County("County")upon completion of project milestones.The
project milestones that WK Dickson proposes are listed in section VI of the application.The release
of reallocated flow up to 785,000 GPD will be used to secure the high demand of development
within the treatment plant's service area.
The allocation of flow the County requests would be split such that 80,000 GPD would be
initially released with execution of the SOC and the remaining 30,000 GPD to be released upon the
notice of award for the proposed improvements project to improve the plant capacity.In addition,
the County would like, at the notice of award for the construction contract,for the division to allow
for"zero" flow permit.These zero flow permits would allow for acceptance of flow while actual
physical capacity is not there at the submission of application but would be available at the end of
improvements construction and engineer's certification of the project.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-6

Application for Special Order by Consent
Section IV- Necessity Narrative
The WSWWTP was originally constructed in 1978 and expanded in 2001.Built by the Town
of Oakboro,the County assumed operation of the plant on May 16,2014.The plant serves the Town
of Stanfield,Town of Oakboro, City of Locust,Red Bridge Golf Community, as well as the Red
Cross and Ridgecrest communities.The WSWWTP has a permitted capacity of 0.9 MGD with
currently permitted expansion up to 1.2 MGD.
The WSWWTP currently has 18 existing Notices of Violation&Intent to Assess Civil
Penalty("NOVs") from the North Carolina Department of Environmental Quality,for exceedance
of effluent parameter limits,within the previous two years.These NOVs were given on dates
ranging from May 2017 to January 2019 and were based on Discharge Monitor Reporting(DMR)
recorded by the facility staff. These notices include 10 violations for exceedance of BOD5 weekly
limits,21 violations for exceedance of weekly Fecal Coliform limits,2 violations for exceedance of
Total Suspended Solids Concentration limits, 1 violation of Ammonia Nitrogen limits, and 5
violations of Chlorine Residual limits.These violations are recorded in the table below with the
date they were recorded, as well as the recorded daily high influent flow for the week of the
violation.The highlighted violations show weeks where the recorded high daily flow exceeded the
current permitted capacity of 0.9 MGD for the plant.
The plant is experiencing higher flows than it can adequately treat under current design
parameters.A contributing factor to this issue is believed to be excessive inflow and infiltration("I
&P")caused by significant rain events in the service areas.These higher flows in addition to design
shortcomings at peak flow are causing some instances of effluent parameters being recorded above
the permitted limits.These shortcomings are discussed with more detail within the concurrently
submitted technical memorandum.
The County receives flow from the previously stated utility systems and has no control over
the systems themselves.Stanly County is aware of the problem due to discrepancies between their
metered wastewater flow and the recorded influent flow at the McCoy Creek Pump Station,just
prior to entry into the WSWWTP.The Town of Oakboro has recently hired Chambers Engineering
to evaluate their wastewater collections system for impacts and recommended improvements to
address I&I issues.
The dates of violations directly correlate with dates of increased rainfall in the service area.
Rainfall records are included in Appendix A for the Oakboro Climate Observation Station
(US1NCSN0013) and were requested from the NOAA National Center for Environmental
Information.With few exceptions,the weeks that experience an influent flow rate over the
permitted capacity (0.9 MGD) also demonstrated a weekly total precipitation of over 1".The
increased rain activity contributes to the excessive I&I issues as well.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-7

Application for Special Order by Consent
As seen in the included Figure 4.1,many of the violations at the WSWWTTP are correlated
to a surge of influent beyond what the plant is designed to treat.The proposed improvements
project will increase the capacity of the plant to 1.2 MGD while using a peaking factor of 3.6 to
account for similar influent surges.Discussed further in the technical memorandum,operational
changes will be implemented to minimize the impact of elevated flow on the effluent Fecal
Coliform concentration during the duration of project construction.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-8

Application for Special Order by Consent
Figure:4.1 Notices of Violation
Date Violation Limit Reporte Weekly High Weekly
Value d Value Flow Rate (MGD) Precipitation
(Inches/Week)
5/27/ BOD5 Weekly Exceeded 13.5 27.33 1.27 3.7
2017 (mg/L)
5/27/ Fecal Coliform Weekly 400 2030.47 1.27 3.7
2017 Exceeded(#/100m1)
12/2/ Fecal Coliform Weekly 400 990.58 0.414 0
2017 Exceeded(#/100m1)
12/9/ Fecal Coliform Weekly 400 610.98 0.443 1.33
2017 Exceeded(#/100m1)
1/6/2 BOD5 Weekly Exceeded 27 29.33 0.513 0
018 (mg/L)
1/6/2 Fecal Coliform Weekly 400 477.54 0.513 0
018 Exceeded(#/100m1)
1/13/ BOD5 Weekly Exceeded 27 74.67 1.315 1.95
2018 (mg/L)
1/13/ Fecal Coliform Weekly 400 467.69 1.315 1.95
2018 Exceeded (#/100m1)
1/13/ Total Nitrogen(As N) 18 30.55 1.315 1.95
2018 Weekly
1/13/ TSS Weekly Exceeded 45 56.33 1.315 1.95
2018 (mg/L)
1/20/ Fecal Coliform Weekly 400 3513.8 0.502 0.45
2018 Exceeded (#/100m1)
1/27/ BOD5 Weekly Exceeded 27 32 1.01 1
2018 (mg/L)
1/27/ Fecal Coliform Weekly 400 1326.02 1.01 1
2018 Exceeded (#/100m1)
2/10/ Fecal Coliform Weekly 400 702.87 1.34 0.8
2018 Exceeded (#/100m1)
3/17/ Fecal Coliform Weekly 400 491.59 1.477 1.1
2018 Exceeded(#/100m1)
3/24/ BOD5 Weekly Exceeded 27 29.87 1.203 1.77
2018 (mg/L)
3/24/ Fecal Coliform Weekly 400 1379.99 1.203 1.77
2018 Exceeded(#/100m1)
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-9

Application for Special Order by Consent
4/28/ BOD5 Weekly Exceeded 13.5 59.33 2.037 2.858
2018 irtL)
4/28/ Fecal Coliform Weekly 400 6000 2.037 2.858
2018 Exceeded(#/100m1)
5/5/2 Fecal Coliform Weekly 400 566.71 0.414 0.23
018 Exceeded (#/100m1)
6/2/2 BOD5 Weekly Exceeded 13.5 14.27 0.996 2.32
018 (mg/L)
6/16/ Fecal Coliform Weekly 400 999.67 0.424 0.3
2018 Exceeded(#/100m1)
11/10 Fecal Coliform Weekly 400 819.76 1.516 2.38
/2018 Exceeded(#/100m1)
11/17 Fecal Coliform Weekly 400 2737.74 2.269 3.65
/2018 Exceeded (#/100m1)
12/15 Fecal Coliform Weekly 400 866.68 2.46 4
/2018 Exceeded (#/100m1)
12/29 Fecal Coliform Weekly 400 1871.22 1.865 3.27
/208 Exceeded(#/100m1)
1/5/2 BOD5 Weekly Exceeded 27 27.47 2.17 2.89
019 (mg/L)
1/5/2 Fecal Coliform Weekly 400 832.03 2.17 2.89
019 Exceeded (#/100m1)
1/12/ BOD5 Weekly Exceeded 27 42.67 1.128 0
2019 (mg/L)
1/12/ Fecal Coliform Weekly 400 605.5 1.128 0
2019 Exceeded (#/100m1)
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-10

Application for Special Order by Consent
Section V-Engineer's Certification
Please see the concurrently submitted Technical Memorandum prepared by W.K.Dickson,
dated June 27th 2019.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-11

Application for Special Order by Consent
Section VI-Predicted Compliance Schedule
The following dates are milestone objectives to track progress towards the WSWWTP
Improvements project.The County would like to propose the same timeline as milestone dates for
the special order by consent, as the plant will be under regulatory limits again upon completion of
the improvements project.The County would like to propose that any additional release in flow to
the WSWWTP be tied to these milestones:
• WSWWTP Improvements Advertisement to Bid,following approval from NCDEQ.
• WSWWTP Improvements Pre-bid Meeting, following Advertisement to Bid.
• WSWWTP Improvements Bid opening,60 days following Advertisement to Bid.
• WSWWTP Improvements to be awarded,90 days following Bid Opening.
• WSWWTP Improvements Contract Execution,30 days following Bid Award.
• WSWWTP Improvements Construction Notice to Proceed,30 days following Contract
Execution.
• WSWWTP Improvements Construction Completion, 12 months following Notice to
Proceed.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-12

Application for Special Order by Consent
Section VII-Funding Sources
The County was previously awarded a loan from the Clean Water State Revolving Fund
("CWSRF") on June 3rd,2015.The intent of this loan is improvement of the WSWWTP under
NCDEQ Project No. CS370834-04 for the amount of$3,058,300.With revisions due to additional
design considerations as a part of the SOC,the County has applied and been approved for a 10%
increase of the loan.This is an increase of$305,830 for a total loan of$3,364,130. The County will
fund the remainder of the project through a local government match of the increase on the CWSRF
loan. See Appendix A for the Offer and Acceptance Letter for a State Loan Increase dated February
13th,2019.
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-13

Application for Special Order by Consent
APPENDIX A
West Stanly WWTP
Application for Special Order by Consent
Issue Date:July 2019
Page 1-14
1

.00 STATE
y :.
6?..
na.
ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S.REGAN
Secretary
Kim H.Colson
Director
February 13, 2019
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Andrew Lucas,County Manager
Stanly County
1000 N First Street, Suite 10
Albemarle,NC 28001
SUBJECT: Offer and Acceptance for a State Loan Increase
Project No. CS370834-04
West Stanly WWTP and Sanitary Sewer
Improvements
Dear Mr. Lucas:
Stanly County has been approved for an increase in loan assistance from the Clean Water
State Revolving Fund. Enclosed are two (2) copies of an Offer-and-Acceptance Document
extending a State Revolving Loan with an increase of$305,830 for total amount of$3,364,130.
This offer is made subject to the assurances and conditions set forth in the Offer-and-Acceptance
Document.
Please submit the following items to Pam Whitley, Division of Water Infrastructure, 1633
Mail Service Center,Raleigh,North Carolina 27699-1633.
1. A resolution adopted by the governing body accepting the loan offer and making
the applicable assurances contained therein. (Sample copy attached)
2. One (1) copy of the original Offer-and-Acceptance Document executed by the
Authorized Representative for the project, along with the signed"Standard
Conditions for the Federal SRF loans". Retain the other copy for your files.
3. Federal Identification Number and DUNS Number of the Recipient (Memo
attached)
4. Sales-Tax Certification(attached)
.0
North Carolina Department of Environmental Quality I Division of Water Infrastructure
512 N.Salisbury Street 11633 Mall Service Center I Raleigh,North Carolina 27699-1633
919.707.9160

•
Please note that if a Fiscal Sustainability Plan is applicable to this project,the
certification is not due until the final reimbursement request.
The Site Certification, a Capital Project Ordinance(or budget ordinance covering the
project), and the Professional Engineering Services Procurement Form are due before
disbursements will begin. Please see the attached Guidance Document for a complete list of
- items due no later than the project's first disbursement.
Reimbursement requests (see printed form attached to this letter) should be sent to Pam
Haven at the address noted.
On behalf of the Department of Environmental Quality, I am pleased to make this offer of
State Revolving Loan funds, made available by North Carolina Water Infrastructure Fund and
the Federal Clean Water Act Amendments of 1987..
Sincerely,
Kim H. Colson,P.E., Director
Division of Water Infrastructure,NCDEQ
Enclosures: Resolution to Accept Loan Offer(suggested format)
Loan Offer and Acceptance Document(two copies)
cc: William B. Keaton P.E.;W.K. Dickson(Charlotte,NC)
Dee Browder
SRF (COM LOX)
tr ,C. .a®_E\1 Q�/
av+mwN at[a.aoammmi tlmaN�
North Carolina Department of Environmental Quality I Division of Water Infrastructure
512 N.Salisbury Street 11633 Mall Service Center I Raleigh.North Carolina 27699-1633
919.707.9160

Technical Memorandum
Application for Special Order by Consent
For
Stanly County
1000 N 1st St
Albemarle,NC 28001
Issue Date:
June 27, 2019
\f�H 1CA10/,,,
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4
Prepared by:
IICI<SON
community Infrastructure consultants
James "Jimmy"Holland,P.E.
W.K. Dickson&Co., Inc.
616 Colonnade Drive
Charlotte,North Carolina 28205
704-334-5348
NC License No. F-0374
Copyright©, WK Dickson & Co., Inc. All rights reserved. Reproduction or use of the contents of this
document; additions or deletions to this document, in whole or in part, without written consent of WK
Dickson&Co.,Inc.,is prohibited. Only copies from the original of this document,marked with an original
signature and seal shall be considered to be valid,true copies

Table of Contents
Section Page
Current Infrastructure 1-1
Limiting Factors of Current Design 1-2
Proposed Improvements 1-4
Preliminary Action 1-5
Appendix Page
Appendix A WSWWTP Design at Conditions 1 and 2 1-6
Appendix B MLSS&Settleometer Measured Test Results 1-8
Appendix C WSWWTP Sludge Calculations Workbook 1-10
Appendix D Plant Operations Templates 1-15
Pk\ I< Technical Memorandum
II D I C I<S O N Issue Date:June 2019
TOC-1

Technical Memorandum
Current Infrastructure:
The West Stanly Wastewater Treatment Plant(WSWWTP)was originally constructed in
1978 and expanded in 2001.The WSWWTP discharges in the Rocky River in the Yadkin Pee-Dee
drainage basin under NCPDES Permit#NC0043532.Built by the Town of Oakboro,Stanly County
assumed operation of the plant on May 16,2014.The plant serves the Town of Stanfield, Town of
Oakboro,City of Locust,Red Bridge Golf Community, as well as the Red Cross and Ridgecrest
communities.The WWTP has a permitted capacity of 0.9 MGD with currently permitted expansion
up to 1.2 MGD.
The WSWWTP has seen an increased number of violations to their effluent parameter limits
over the previous two years.The majority of these violations have been due to the exceedance of
fecal coliform concentration,with some violations of effluent BOD as well. These Notices of
Violation are listed in their entirety and discussed on pages 1-7, 1-9, and 1-10 of the Application for
Special Order by Consent submitted concurrently with the Technical Memorandum.
The existing Wastewater Treatment Plant consists of:
• Influent pump station with bar screen, grit removal, and flow measurement at McCoy
Creek Pump Station
• Influent flow splitter box
• Influent composite sampler
• Two (2) 00.532 MG aeration basins with mechanical aerators
• Clarifier Splitter Box
• Two (2)30'Diameter Secondary Clarifiers
• One (1)50'Diameter Secondary Clarifier
• WAS/RAS Pump Station
• 0.035 MG Chlorine Contact Basin with De-Chlorination Unit
• Effluent Composite Sampler
• Effluent Pump Station with three (3) pumps and force main to Outfall 002
• Two (2) 225 ft2 Sludge Holding Tanks
• One(1) 0.4 MG Aerobic Digester/sludge holding basin with floating aerators, floating
mer, a floating decanter mechanism, and auxiliary pumps
• Two (2) 1,250 ft2 sludge drying beds, surplus
• Standby electric generator
willIP ix�" West Stanly WWTP
••`` Technical Memorandum
DICKSON Issue Date:June 2019
Page 1-1

Technical Memorandum
Limiting Factors of Current Design:
The WWTP is permitted capacity up to 0.9 MGD with its current infrastructure,but outside
factors have created increases in influent flow to the West Stanly Plant over the last two years.
Causes to these outside factors have been discussed in the Special Order by Consent Application,
Section 4.Due to this increase in influent flow, a peaking factor of 3.6 was determined for the plant.
Calculations provided in Appendix A show design requirements for Condition 1 (Current 0.9 MGD
Capacity) and Condition 2 (Future 1.2 MGD Capacity)with the current plant infrastructure at
design flow, a peaking factor of 2.5, and a peaking factor of 3.6.
At Condition 1, the WWTP is limited in capacity by the secondary clarifier. Design
standards according to Metcalf&Eddy"Wastewater Engineering:Treatment and Resource
Recovery"limit the surface overflow rate of the clarifier to 1000 gpd/sf at the peak flow and 400
gpd/sf at the average flow.Using the peaking factor of 3.6 and limiting SOR to 1000 gpd/sf,the
required diameter of the clarifier becomes 65 feet. The existing plant has a single secondary clarifier
operational with a diameter of 50 feet and two (2)inoperable clarifiers with a diameter of 30'each.
The high SOR on the current clarifier is preventing solids from properly settling at high flows,
which leads to solids washout over its effluent weirs. Solids that flow over the effluent weirs either
settle in the chlorine contact chamber or remain in the plant effluent. At a maximum peak flow of
3.24 MGD (0.9 MGD x 3.6 PF),the chlorine contact chamber gives a design detention time of 14.5
minutes.This does not meet the Ten States Standard minimum detention time of 15 minutes.
At Condition 2, the design flow is 1.2 MGD with a peak flow of 4.32 MGD (1.2 MGD x 3.6
PF). At this peak daily flow,there are a couple of factors limiting capacity with the current
infrastructure of the plant. The size of the aeration basin is adequate for this design flow,with a
current total volume of 1.064 MG the detention time is 21.28 hours.This is within the Metcalf&
Eddy design standard of 18-36 hours of detention time.The secondary clarifier continues to be
undersized to handle the increased flow,requiring a surface area of 3,900 square feet for 4.32 MGD
with an overflow rate of 1000 gpd/sf.This surface area would require a minimum diameter of 75
feet,the current secondary clarifier has a diameter of 50 feet.The size of the chlorine contact
chamber becomes the final limiting factor of the current plant's ability to handle a design flow of 1.2
MGD.The current volume of 0.033 MG gives a detention time of 10.9 minutes at 4.32 MGD.This
fails to meet the Ten States Standard detention time of 15 minutes at peak hourly flow.
As stated in the previous section,one of the main issues currently facing the plant are solids
washing out of the clarifier during peak flow(which the plant has seen frequently over the last two
years). This may be caused by the inability of solids to settle within the clarifier.Readings from
settleometer tests performed by the plant staff, as well as calculated SVI can be found in Appendix
B.As peak flow enters the WWTP,these unsettled solids are washed over the effluent weirs in the
clarifiers. Due to the higher level of effluent BOD and the reduced settling ability of solids,it is
determined that the sludge age is higher than optimal. Given the previously recorded MLSS
West Stanly WWTP
Y Y Technical Memorandum
D11<S O N Issue Date:June 2019
Page 1-2

Technical Memorandum
concentration,volumes of the aeration basins,the influent Total Suspended Solids, and the average
influent flows the current sludge age in the aeration basins is around 25.9 days.This shown in the
calculations in Appendix B.The average Mean Cell Residence Time, according to Metcalf&Eddy,
should be around 15-20 days. The older sludge within the aeration system is consuming less
oxygen and is not settling as a younger sludge would.Another indicator of a high sludge age is a
low food to mass ratio of the plant,as microorganisms that have been within the aeration system
for a longer amount of time will consume less oxygen. As seen in the calculations provided in
Appendix A,the design F:M is 0.075. The current F:M is lower than the design value, as seen in
Appendix C the F:M based on April 2019's recorded data is 0.054.
Under peak flow,the WSWWTP is failing to meet recommended design parameters at its
currently permitted flow,condition 1 (3.24 MGD). The limiting factors in this scenario are the size
of the secondary clarifier and the detention time of chlorine contact chamber.These shortcomings
are to be addressed in the proposed improvements project discussed on page 1-4.For the duration
of the SOC,WK Dickson would like to propose a reallocation of permitted flow to 785,000 GPD for
the during of time until the conditions of the SOC are met. More detail on this reallocation of
permitted flow can be found in section III of the concurrently submitted SOC application.
WK West Stanly WWTP
D '/��``/f''""''''`'''��n i Technical Memorandum
\.�7'�..J/ V Issue Date:June 2019
Page 1-3

Technical Memorandum
Proposed Improvements:
These limiting factors will be addressed during the West Stanly WWTP Improvements
project. Existing surface aerators are to be replaced with units that allow for independent aeration
and mixing. This provides the ability to mix without aerating, something this current aeration units
cannot do. The placement of the new units will allow the direction of flow to be controlled within
each aeration basin.The 50' secondary clarifier will be rehabilitated with all new mechanism and
appurtenances.The two abandoned clarifiers will be demolished and replaced with a new 75'
center feed clarifier,providing adequate surface area for a peak flow of 4.32 MGD.The existing
chlorine contact chamber will be modified and converted to two (2) identical channels as opposed
to the existing single channel. The expansion will provide the additional volume needed for a
minimum detention time of 15 minutes at 4.32 MGD, as well as providing an option to clean each
channel without taking the entirety of the contact chamber offline.Regular cleaning of the chlorine
contact chamber will minimize accumulation of any solids that could potentially wash out during
peak flow events.
Summary of Proposed WSWWTP Improvements:
• Relocating Headworks from McCoy Creek PS to new facility on site at the WWTP
• Replacement of Aerating and Mixing Equipment in Aeration Basin
• Removal of Two abandoned 30'Diameter Secondary Clarifiers
• Installation of One (1) 75'Diameter Secondary Clarifier
• Renovation of existing 50'Diameter Secondary Clarifier
• Removal and Replacement of RAS Pump Station
• Expansion of Chlorine Contact Chamber
• Effluent PS Modifications
WY Y 1< West Stanly WWTP
il/PDICKSON Technical Memorandum
Issue Date:June 2019
Page 1-4

Technical Memorandum
Preliminary Action:
Prior to entering into a Special Order by Consent, action is being taken at WSWWTP to
mitigate the excessive effluent concentration of BOD and Fecal Coliform.WK Dickson is
recommending several operational modifications for the WSWWTP. These operational changes
include,but are not limited to, additional wasting of sludge from the aeration process, an increased
chlorine dosage for disinfection, and checklist of daily tasks and testing to be performed by plant
staff.These operational changes should assist in operation of the plant within the permitted limits.
If continued settling issues are observed in the secondary clarifier, a cationic polymer flocculant
could be selected as a temporary settling agent for the remaining duration of construction.Due to
the volume of sludge to be wasted,wasting and subsequent hauling will occur over a period of 2-3
months to prevent spikes of Ammonia in the aeration basins.
Dewatering and removal of biosolids from the aerobic digestor occurred on Thursday,May
2nd,2019 by Synagro. This will allow for additional wasting to take place at the plant,a second
hauling by Synagro is planned for some time towards the beginning of the fiscal year. In addition
to the wasting of sludge, additional documentation is being taken by the plant staff.This includes
daily settleometer tests, daily total suspended solids analysis, daily operator's log, and a daily
process control log.The operator's log keeps record of equipment run times,clarifier blanket,
chemical inventory, as well as the influent and effluent flow.The process control report tracks
permitted parameters as well as the volume and concentration of wasted sludge. Templates of the
daily tests and record logs are provided in the appendix.
Plik1V Y '\ West Stanly WWTP
WIPPTechnical Memorandum
DICKSONIssue Date:June 2019
Page 1-5

Technical Memorandum
APPENDIX A
Y Y i< West Stanly WWTP
11111. �^` h Technical Memorandum
D'C' a7 1i Issue Date:June 2019
Page 1-6

West Stanly WWII'
MLSS&Settleometer Test Results
'Date 'Average Tested TSS(mg/L) (Average MLVSS'(mg/L) [Date Settled Volume at 30 Min. 'Calculated SVI(mg/L)
APRIL APRIL
4/1 1000 mL Sample 4/1
4/2 5050 4/2
4/3 3600 4/3 780
4/4 4047 4/4 770
4/5 3977 4/5 860
4/6 4/6
4/7 4/7
Weekly Average 4169 25011 Weekly Average 803 3211
4/8 3530 4/8 830
4/9 4/9
4/10 3523 4/10 830
4/11 3717 4/11 640
4/12 4067 4/12 670
•
4/13 4/13
• 4/14 4/14
Weekly Average 3709 22261 Weekly Average 743 3341
4/15 4/15 650
4/16 4/16
4/17 4/17 310
4/18 4/18
4/19 3960 4/19 640
4/20 4/20
4/21 4/21
Weekly Average 3960 23761 Weekly Average 533 2241
4/22 4207 4/22 850
4/23 4303 4/23 820
4/24 4200 4/24 710
4/25 3543 4/25 500
4/26 3623 4/26 430
4/27 4/27
4/28 4/28
Weekly Average 3975 23851 Weekly Average 662 2781
MAY MAY
4/29 3347 4/29 440
4/30 3607 4/30 450
5/1 5/1 560
5/2 3273 5/2 400
5/3 3263 5/3 420
5/4 5/4
5/5 5/5
Weekly Average 3373 20241 Weekly Average 454 2241
5/6 3627 5/6 605
5/7 5/7
5/8 3880 5/8 740
5/9 3553 5/9
5/10 5/10
5/11 5/11
5/12 5/12
5/13 5/13
Weekly Average 3687 2212' Weekly Average 672.5 3041
.Assumed 60%of solids in bioreactor to be voltile solids

Technical Memorandum
APPENDIX B
WWI< West Stanly WWTP
illP
D I C I<SO w V, Technical Memorandum
' Issue Date:June 2019
Page 1-8

West Stanly WWTP
Sludge Calculations Workbook
Input Values
Tested MLSS(mg/L)(2019 Daily Average) 3904' Aeration Basin- 2 0.532 MG/EA- 1.064 MG Total
Bioreactor Volume(MG) 1.1/6 Clarifier- 1 W 50 Ft Dia. 1962.5 SF- 27475 CF Total- 0.21 MG 14 Ft Depth
April 2019 Average Influent TSS(mg/L) 156
April2019 Average MLVSS(mg/L) 2342
April 2019 Average Influent BOD Conc.(mg/L) 149
April 2019 Average influent Flow(MGD) 1.028
Sludge Age(Aeration Basins)- •dove M&E-15-20 Days
Food:Mass- I 0.061I Design Value-0.075
'Assumed 60%of solids In bloreactor to be voltlle solids

Technical Memorandum
APPENDIX C
"PkW I< West Stanly WWTP
�I �I Technical Memorandum
D I C I<SO N Issue Date:June 2019
Page 1-10

WEST STANLY COUNTY WWTP
DESIGN FLOW= 0.9 MGD Peak Flow @ 2.5 PF= 2.25 mgd
PEAK HOURLY FLOW= Peak Factor @ 3.6 PF= 3.24 mgd
INFLUENT: 12 Mo.Ave(ATC) Max Mo. Desien Design Loading
AVERAGE FLOW 2015= 0.45 MGD 0.67 MGD 0.9 MGD
BOD5 192.8 mg/L mg/L 250 mg/L 1876.5 lbs/day 1
TSS 209.8 mg/L mg/L 250 mg/L 1876.5 Ibs/day
AMMONIA N 35.6 mg/L mg/L 40 mg/L 300.24 lbs/day
EFFLUENT PERMIT Mo.Ave
BOD5-April to Oct 31 9 mg/L
BOD5-Nov to March 31 18
TSS 30
AMMONIA N-April-Oct 31 3
AMMONIA N-Oct-March 31 6
ASSUMPTIONS:
DESIGN F/M(EXTENDED AERATION): 0.075 M&E Typical-0.05 1.5 lbs BOD/Ibs MLVSS
I MLVSS/MLSS: 0.7
AERATION BASINS= 2 @ 0.532 MG/EA= 1.064 MG TOTAL= 142246.0 CF
AERATION= 6 @ 15 Hp= 90 Hp Total
Clarifiers= 1 @ 50 Ft Dia= 1962.5 SF
AERATION BASIN:
Hydraulic Retention Time at Design Flow= 0.9 1.18 Days= 28.37 Hours M&E Typical Extended Aeration=18-36 hr.
Hydraulic Retention Time at Peak DailyFlow 2.25 0.47 Days= 11.35 Hours
Hydraulic Retention Time at Hourly Flow 3.24 0.33 Days= 7.88 Hours
Mixing Energy= Total Hp/V 84.59 Hp/MG= 0.59 Hp/1000 CF M&E-0.5 to 1.0 Hp/1000 cf
Aeration Basin MLVSS Req'd by F/M= 25,020 lbs @ design Q&BOD 2820 mg/L
Aeration Basin MLSS= MLVSS/%Vol. 35,743 lbs @ design Q&BOD= 4028 mg/L M&E-3000-6000 mg/L
Volumetric Loading= 13.19 lbs BOD/day/1000 cf M&E Typical Extended Aeration=10-25
1

CLARIFIER:
Surface Overflow Rate @ Design Flow= 0.9 459 gpd/sf M&E Peak Q @ 3500 mg/L MLSS&50%WAS=685 gpd/sf
Surface Overflow Rate @ Peak Flow= 2.25 1146 gpd/sf <1000 gpd/sf @ Peak Q or 400 gpd/sf at Ave Q
Surface Overflow Rate @ Peak Flow= 3.24 1651 gpd/sf <1000 gpd/sf @ Peak Q or 400 gpd/sf at Ave Q
Required Clarifier Dia @ 0.9 Design Q&400 gpd/sf 2250.0 sf= 53.54 ft.diameter Capacity of existing clarifier(MGD): 0.79
Required Clarifier Dia @ Peak Hourly 2.925 Q&1000 gpd/sf 3240.00 sf= 64.24 ft.diameter Capacity of existing clarifier(MGD): 1.96
Solids loading at req'd MLSS&Design Q= 0.9 0.64 lbs/sf-Hr= M&E-0.5 to 1.5 lbs/sf/hr
CHLORINE CONTACT:
Contact Tank= 0.033 MG 2 ea 114'x 3.83'x 5'= 4366.2 cf= 0.033 MG
Hydraulic Retention @ Design Q= 52.3 min
Hydraulic Retention @ Design Peak Q= 20.9 min
Hydraulic Retention @ Max.Peak Q= 14.5 min 10 States-15 minutes at peak hourly
DECLORINATION:
Decl.Contact Tank= 0.0024 MG 1 ea 17'x 3.83'x 5'= 325.55 cf= 0.002 MG
Hydraulic Retention @ Design Q= 3.90 min @ Q= 0.9 mgd
Hydraulic Retention @ Design Peak Q= 1.56 min @ Q= 2.25 mgd
Hydraulic Retention @ Max.Peak Q= 1.08 min @ Q= 3.24 mgd 10 States-30 sec at design peak hourly
CONCLULSIONS:
Aeration Basin:
All design parameters appear to be well within typical design guideline at Q=0.9 mgd for Extended Aeration
Mixing energy is at 0.59 Hp/1000 cf which is withi the typical guidelines fo 0.5 to 1.0 per Metcalf&Eddy
Clarifier:
Single Clarifier @ 50'diameter surface overflow at design flow is 459 gpd/sf and within guidelines for MLSS per M&E
SOR @ peak daily flow of 2.25 mgd is 1146 gpd/sf and above recommended maximum of 1000 gpd/sf max.
Solids loading at MLSS of 3571 mg/L and design Q is 0.64 lbs/sf-hr and well within recommended 0.5-1.5 lbs/sf-hr.
Chlorination/Dechlorination:
Both chlorination contact time is less than minimum reccomended at maximum peak hourly flow.
Dechlorination contact times are within design guidelines at design Q,peak daily Q and peak hourly Q.
2

WEST STANLY COUNTY WWTP
DESIGN FLOW= 1.2 MGD Peak Flow @ 2.5 PF= 3 mgd
PEAK HOURLY FLOW= Peak Factor @ 3.6 PF= 4.32 mgd
INFLUENT: 12 Mo.Ave(ATC) Max Mo. Design Design Loading
AVERAGE FLOW 2015= 0.445 MGD 0.666 MGD 1.2 MGD
BOD5 192.8 mg/L mg/L 250 mg/L 2502 lbs/day
TSS 209.8 mg/L mg/L 250 mg/L 2502 lbs/day
AMMONIA N 35.6 mg/L mg/L 40 mg/L 400.32 lbs/day
EFFLUENT PERMIT Mo.Ave
BODS-April to Oct 31 9 mg/L
BODS-Nov to March 31 18
TSS 30
AMMONIA N-April-Oct 31 3
AMMONIA N-Oct-March 31 6
ASSUMPTIONS:
DESIGN F/M(EXTENDED AERATION): 0.075 M&E Typical-0.05 1.5 lbs BOD/lbs MLVSS 1
MLVSS/MLSS: 0.7
AERATION BASINS= 2 @ 0.532 MG/EA= 1.064 MG TOTAL= 142246.0 CF
AERATION= 6 @ 15 Hp= 90 Hp Total
Clarifiers= 1 @ 50 Ft Dia= 1962.5 SF
AERATION BASIN:
Hydraulic Retention Time at Design Flow= 1.2 0.89 Days= 21.28 Hours M&E Typical Extended Aeration=18-36 hr.
Hydraulic Retention Time at Peak DailyFlow 3 0.35 Days= 8.512 Hours
Hydraulic Retention Time at Hourly Flow 4.32 0.25 Days= 5.9 Hours
Mixing Energy= Total Hp/V 84.58646617 Hp/MG= 0.59 Hp/1000 CF M&E-0.5 to 1.0 Hp/1000 cf
Aeration Basin MLVSS Req'd by F/M= 33,360 lbs @ design Q&BOD 3759 mg/L
Aeration Basin MLSS= MLVSS/%Vol. 47,657 lbs @ design Q&BOD= 5371 mg/L M&E-3000-6000 mg/L
Volumetric Loading= 17.59 lbs BOD/day/1000 cf M&E Typical Extended Aeration=10-25
3

CLARIFIER 1 @ 50'Dia:
Surface Overflow Rate @ Design Flow= 1.2 611 gpd/sf M&E Peak Q @ 3500 mg/L MLSS&50%WAS=685 gpd/sf
Surface Overflow Rate @ Peak Flow= 3 1529 gpd/sf <1000 gpd/sf @ Peak Q or 400 gpd/sf at Ave Q
Surface Overflow Rate @ Peak Flow= 4.32 2201 gpd/sf <1000 gpd/sf @ Peak Q or 400 gpd/sf at Ave Q
Required Clarifier Dia @ 1.2 Design Q&400 gpd/sf 3000.0 sf= 61.82 ft.diameter
Required Clarifier Dia @ Peak Hourly 4.32 Q&1000 gpd/sf 4320.00 sf= 74.18 ft.diameter
Solids loading at req'd MLSS&Design Q= 1.2 1.14 lbs/sf-Hr= M&E-0.5 to 1.5 lbs/sf/hr
CHLORINE CONTACT:
Contact Tank= 0.033 MG 2 ea 114'x 3.83'x 5'= 4366.2 cf= 0.033 MG
Hydraulic Retention @ Design Q= 39.2 min
Hydraulic Retention @ Design Peak Q= 15.7 min
Hydraulic Retention @ Peak Hourly Flow= 10.9 min 10 States-15 minutes at peak hourly
DECLORINATION:
Decl.Contact Tank= 0.0024 MG 1 ea 17'x 3.83'x 5'= 325.55 cf= 0.002 MG
Hydraulic Retention @ Design Q= 2.92 min @ Q= 1.2 mgd
Hydraulic Retention @ Design Peak Q= 1.17 min @ Q= 3 mgd
Hydraulic Retention @ Max.Hourly Rate= 0.81 min @ Q= 4.32 mgd 10 States-30 sec at design peak hourly
CONCLULSIONS:
Aeration Basin:
All design parameters appear to be well within typical design guideline at Q=1.2 mgd for Extended Aeration
Mixing energy is at 0.47 Hp/1000 cf which is below the typical guidelines fo 0.5 to 1.0 per Metcalf&Eddy,therefore additional mixing is needed.
Clarifier:
Single Clarifier @ 50'diameter surface overflow at design flow is 611 gpd/sf and within guidelines for MLSS per M&E
SOR @ peak daily flow of 3.0 mgd is 1529 gpd/sf and above recommended maximum of 1000 gpd/sf max.
Solids loading at MISS of 4762 mg/L and design Q is 0.1.01 lbs/sf-hr and within recommended 0.5-1.5 lbs/sf-hr.
Chlorination/Dechlorination:
Chlorine Contact basin is too small for peak hourly flow.
4

Technical Memorandum
APPENDIX D
IPWWK West Stanly WWTP
r D I C I<SO N Technical Memorandum
Issue Date:June 2019
Page 1-15

IV! LSS
2019 Sample Volume = 10mL unless otherwise noted
Day Analyst Sample Filter Number Filter Weight Filter w/Residue Residue Weight TSS (mg/L) TSS Average
A 0.0000 0
B 0.0000 0 0
C 0.0000 0
A 0.0000 0
B 0.0000 0 0
C 0.0000 0
A 0.0000 0
B 0.0000 0 0
C 0.0000 0
A 0.0000 0
B 0.0000 0 0
C 0.0000 0
A 0.0000 0
B 0.0000 0 0
C 0.0000 0
A 0.0000 0
B 0.0000 0 0
C 0.0000 0
TSS in mg/L= [ ( Filter w/Residue- Filter Weight )/ Sample Volume] X 1,000,000

Settleometer Record Log Sheet
Date: r Time (min.) Reading(mis.) Clarity(cloudy,clear) Even/Un-even Other characteristics
5
10
15
20 -
— 25
30
60
float
Date: Time(min.) Reading(mis.) Clarity(cloudy,clear) Even/Un-even Other characteristics
5
10
15
20
25
30
60
float
Date: Time(min.) Reading(mis.) Clarity(cloudy,clear) Even/Un-even Other characteristics
5
10
15
20
25
30
60
float
Date: Time(min.) Reading(mis.) Clarity(cloudy,clear) Even/Un-even Other characteristics
- 5
10
15
20
25
30
60
float

Month West Stanly WWTP Process Control Report
Year: Lab Certification#5671
NPDES#NC0043532
Date Basin Op. Time Hours Rain E-Flow Blanket c12• Eff.pH D.O. Time Temp BOD TSS NH3 Fecal Time TN TKN Ton. Cu Zn Phos. CaCO3 I-Flow Time BOD TSS CaCO3 WAS Solids Solids
for 2(init.)Arrival On-Site inches MGD (feet) (mg/I) (6.0-9.0) (Eff.) (Eff.) (Eff.) (Eff.) (Eff.) (Eff.) (Eff.) (E-Comp.) Eff. Eff. P/F EKvs/t Eff. Eff. Eff. MOD (I-Comp) (Inl) (Inf) (Upstrm) (gal.) (SB) 30 min
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
Aeer.ae #DIV/ol #DlV/Ol #Dw/D! ###a# ##### #Div/O! ##### ##### ######Div/o! ##### ###########_
Total 0 0 0 0 0 0 0 0 0 0 0 0

West Stanly WWTP Daily Operator Log
NPDES# NC0043532
DATE: Operator: RAIN: INCHES
DAY: Time In: ORC Y/N/B
Weather: Time Out: ORC/BORC Signature
Clarifier 1 Clarifier 2
Blanket (ft) Time: (24) Blanket (ft) Time: (24)
Blanket (ft) Time: (24) Blanket (ft) Time: (24)
Equipment Run Times
Aeration: Basin - of 6 Digester of 3
RAS1 RAS2 Scum Scum
Today: Today: Today: Today:
Prey: Prey: Prey: Prey:
Total: Total: Total: Total:
Hz: Hz: 0/A/H 0/A/H
Effluent Pumps#1 Effluent Pumps#2 Effluent Pumps#3
Today: Today: Today:
Prey: Prey: Prey:
Total: hrs Total: hrs Total: hrs
Influent Pump#1 Influent Pump#2 Influent Pump#3 Influent Pump#4
Today: Today: Today: Today:
Prey: Prey: Prey: Prey:
Total: hrs Total: hrs Total: hrs Total:
Chemical Inventory
Chlorine Gas Cl2 Sulfur Dioxide Gas SO2
Prey: Beg: lbs Beg: lbs Prey: Beg: lbs Beg: lbs
Today: End: lbs End: lbs Today: End: lbs End: lbs
Total: Used lbs Used lbs Total: Used lbs Used lbs
ALUM NAOH Lime/Mag WAS
Current: gal Current: gal lbs Start:
Used: gal Used: gal lbs Stop:
Total:
Generator Main Generator Effluent Generator Influent Gallons:
Today: Today: Today:
Prey: Prey: Prey: Decant
Total: Total: Total: Start:
Stop:
Influent Flow Effluent Flow Total:
Today: Today: Gallons:
Prey: Prey:
Total: MGD Total: MGD
Inf. Sampler: Collected: Temp: Volume: Restart:
Eff. Samper: Collected: Temp: Volume: Restart:
Notes:
Notes:

RESOLUTION FOR A SPECIAL ORDER BY CONSENT(SOC)
WHEREAS: The West Stanly Waste Water Treatment Plant("WWTP")has a permit to
discharge treated wastewater to Rocky River, classified Tributary waters
of the State of North Carolina in the Yadkin-Pee Dee River Basin; and
WHEREAS: This discharge is allowed under NPDES Permit Number NC0043532
effective December 1, 2018, and scheduled to expire on January 31,2023;
and
WHEREAS: The WSWWTP intends to undergo improvements that will remediate the
existing treatment processes as well as expand the plant's capacity to 1.2
MGD; and
WHEREAS: The WSWWTP agrees to maintain and operate the wastewater treatment
system at its maximum level of efficiency during the interim period of the
Special Order by Consent and thereafter; and
WHEREAS: The WSWWTP has or will secure funding for necessary treatment plant
improvements in the form of grants, loans, or other cash reserves; and
WHEREAS: The WSWWTP hereby authorizes Andy Lucas, Stanly County Manager,
to sign and execute the Special Order by Consent on behalf of Stanly
County; and
THEREFORE,BE IT RESOLVED that the WSWWTP requests a Special Order by Consent
from the Environmental Management Commission and Stanly County hereby authorizes Andy
Lucas, Stanly County Manager,to sign and execute this document on behalf of Stanly County.
et-L
Adopted this I 6- day of Ali2'I I ,2019.
A-nak i& Lves
(Type o rout)Full Name a Title of person authorized to execute SOC
Z--- —
(Signature) Full ame of person authorized to execute SOC
7�� J s pa, 7�, �•� County Seal
( r Print)Full Name of Board of Commissioners Chairman is to be placed here.
nat u e o Boar o Commissioners Chairman
' r' .4.7.
.:..a� e T
+ e
t
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dui