NC0026611_Meeting Notes_20040607

NPDES DOCIMENT SCANNING COVER SHEET
NC0026611
Morehead City WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Meeting Notes
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 7, 2004
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content on the reirerae Decide

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MOREHEAD CITY
FLOYD M. CHADWICK, JR.
Council
PAUL W. CORDOVA
ROBERT B. HOWARD, JR.
- JOHN F. NELSON
DEMUS L THOMPSON
TO:
FROM:
DATE:
I. Mayor Pro-Tem
NORTH CAROLINA
706 ARENDELL ST
P.O. DRAWER M
MOREHEAD CITY, NC 28557-4234
TEL [phone]
FAX [phone]
EMAIL [e-mail]
Division of Water Quality
Town of Morehead City
June 7, 2004
GERALD A. JONES, JR., Mayor
R. RANDY MARTIN
City Manager
The Town of Morehead City respectfully requests that the State's Division of Water
Quality remove the City from the moratorium list which currently prohibits sewer line
extension permit issuance. Morehead City has taken steps to support the requested action
as follows:
• The City has requested and received approximately $2.8 million state
grant and loan assistance to address inflow and infiltration (i&i) problems.
The recently completed project has resulted in a significant reduction in
i&i which, combined with the impacts of major weather related events,
was the reason that Morehead City was placed and has remained on the
moratorium list. [NOTE: To support Morehead City's contention that the
i&i project has been successful, the services of ECU's Decision
Science Department were engaged to study the impact of the
project. Enclosed is the executive summary of their findings] .
• In addition to this major project, Morehead City has for the past eight (8)
years recognized the significance of i&i problems by committing a
dedicated crew with equipment and material resources that has worked
exclusively to address i&i problems. An estimated additional $1.0 million
has been expended by the City during the period for this purpose. The City
is committed to continuing this successful ongoing effort.
• The City is operating its existing Wastewater Treatment Plant (WWTP)
very efficiently as documented by a 2002 Performance Evaluation of the
WWTP performed through services of the State's Municipal Compliance
Initiatives Program conducted by Mr. Gene Johnson, MCI Coordinator,
Division of Water Quality. In fact, other than flow violations, the City has,
with only very minor exceptions, operated within its NPDES permit and
has avoided bypasses of untreated wastewater during the past decade
despite extremely high flows during major storm events [e.g. numerous
hurricanes, El Nino, record rainfall in 2003].
• The City is committed to a long term goal of reducing and hopefully
finding an alternative to discharging into Calico Creek. To this end, the
City pursued, received and will soon complete a grant -funded project for a
ADA/EOE/P Equal Opportunity Employer Provider

5 acre demonstration reuse irrigation sod growing site on City land. The
City undertook this project to gain experience while completing the
upgrade of the existing WWTP to produce 100% reuse quality effluent.
The City also recently completed a new park in close proximity to the
WWTP that has a reuse irrigation system already installed that is ready to
accept effluent from the new plant. The City only last week received
approval of another grant to expand the new park and add additional
acreage and reuse irrigation opportunities with that project also being
completed prior to the new WWTP going online. The park sites will total
25 — 30 acres. The City has also begun dialogue with the Clean Water
Management Trust Fund about a major, primarily grant -funded project to
develop a first phase of a larger scale reuse project to construct an elevated
tank and distribution system to expand reuse irrigation opportunities to a
nearby golf course, county park and two school sites. The Coastal
Federation has indicated a willingness to support the City in this effort, as
well as, efforts to pursue other projects to mitigate potential stormwater
impacts from the City's upgrade of its WWTP and inherent increased flow
[NOTE: The City and Coastal Federation were co -applicants in a
successful project last year to acquire Sugarloaf Island off the Morehead
City waterfront for conservation purposes preventing the property from
being developed by commercial interests] .
• The City has completed its 201 Facilities Plan and is awaiting final
issuance of the required FONSI to construct a reuse quality WWTP. The
City Engineer is under contract and well on his way to completing plans
and specifications for the new 2.5 mgd facility by the end of 2004 at
which time the City will apply for permits to proceed with immediate
construction of the facility.
Based upon these and other efforts, Morehead City believes relief from the
moratorium to allow additional line extensions is fair and justifiable. The City
obviously needs to expand its customer base to help spread the fixed costs associated
with debt already incurred to make improvements to the system and to address the
$8 T 9 million conservatively estimated for the new WWTP. Morehead City officials
thank you in advance for your prompt consideration of this request.
Sincerely,
• AOi /'4I
ayor Ger
ENCLOSURES
A. Jones, Jr.

Executive Summary
Morehead City Sewer Improvement Project
Purpose: The Town of Morehead City utilized the services of Scott Delana and David
West, Associate Professors of Decision Science, College of Business at East Carolina
Universty, to project the effectiveness of sewer improvements on reducing
infiltratibn/inflow of extraneous water into the City's sewer system under varying rainfall
and groundwater conditions.
Backgr 4p und: As of June, 2003, Morehead City's sewer collection system consisted of
approxithately 60.4 miles of sanitary sewer lines, 1,100 manholes and 24 pumping
Pp Y
stations.
During the past year, the City completed the following work to reduce infiltration/inflow
into the sewer system.
• Installed HDPE liners in 504 LF of 6" sewers and 25,389 LF of 8" sewers
• installed cured -in -place liners in 1,394 LF of 8" sewers and 976 LF of 10" sewers
• Replaced 214 manholes [190 (0-6 ft) and 24 (6-8ft)]
• Installed fiberglass liners in 40 manholes.
The high majority of sewers treated with the above improvements were vitrified clay
pipes without water tight joints. The bulk of the construction work was completed in
stages between October 2003 and April 24, 2004. [NOTE: Although improvements were
phased (throughout the project, full impact of the reductions of the infiltration/inflow was
not achieved until late April, 2004] .
As of April 1, 2004, an updated breakdown of the material types of sewer lines in the
City's system is as follows: approximately 25% are vitrified clay, 32% PVC, 19% PVC
Truss, 9% ductile iron and 14% polyethylene. [NOTE: Prior to the project, the system
consist d of approximately 32% vitrified clay, 32% PVC, 19% PVC Truss, 9% ductile
iron an 7% polyethylene].
Findings: An ARIMA intervention model was used to estimate the effectiveness of sewer
improvements made by the Morehead City municipality from June 2003 to April, 2004.
The estimate of the impact of the sewer improvements is a reduction of inflow and
infiltration of 201,000 gallons per day during an average year. Wastewater treatment
flow rates were predicted for the improved system under the following three scenarios, a
wet year comparable to 2003, a perfectly average rainfall year, and a drought year
1

comparable to 2001. The average daily flow rates through the improved sewer system
.,...and discharged from the wastewater treatment plant aregivenin the following_tab_
Sc nano
Average
Annual Rainfall Groundwater level Wastewater flow
(inches/year) (centimeters) (mgpd)
Extremely wet year 92 44 1.67
Average
Drought
year
year
61
35
96 1.28
153 1.02
Model and Variables: The primary purpose of the model developed for this study is to
accurately predict the discharge flow of wastewater from the treatment plant. Daily
measures of flow rates through the wastewater treatment plant (WTF) were provided by
Morehead City personnel. The explanatory variables selected for the model were those
suggested by the Morehead City project team and supported by prior publications in the
research) literature. We found that the WTF had a first order autoregressive behavior
which simply means that today's flows are correlated with yesterday's flows. The inflow
and infiltration rates are known to be highly dependent on rainfall rates and groundwater
levels. Daily rainfall (RF) rates were measured at the treatment plant and used in the
study. Actual groundwater levels (GWL) were not available but estimates were
constructed by interpolation from a major field research study conducted in Carteret
County under the direction of Professor Amatya of North Carolina State University. The
most of ective explanatory variables were found to be GWL and a dynamic interaction
term be een RF and GWL with an exponential decay of approximately 5 days. An
intervention term (I) was used to model the fact that the system was changing during the
study. This intervention term is a ramp function that defines a continuous rate of
improvement in the sewer system beginning June 1, 2003 and ending March 31, 2004.
For completeness, the functional form of the model is given below.
(1 9/3)WTFt = aGWL +rl
RF * GWL + wIt
(1 bB)
Validity of model: The parameters of the model were estimated from 1,552 daily
observations beginning in January 2000, and ending March 31, 2004. The model is highly
significant with an R2 of 0.856 and a mean absolute percent error of 5.99 /o. Each of the
variables in the model is also highly significant withp values generally less than 0.0001.
The small p values suggest that all variables are necessary to explain the wastewater
treatment flow.
Investigators: Scott Dellana, East Carolina University
David West, East Carolina University
2

---
Office
East Carolina University
College of Business Administration
Department of Decision Sciences
Greenville, NC 27585
[phone]
email: [e-mail]
EDUCATION
VITA
DAVID A. WEST
Home
1404 Doris Circle
Greenville, NC 27858
[phone]
UNIVERSITY OF RHODE ISLAND, Kingston, RI.
Doctor of Philosophy, May 1996
Concentration in Operations Management and Management of Information Systems
Dissertation Topic, Applications of Neural Networks to Decision Science Problems
UNIVERSITY OF CHICAGO, Chicago, IL.
Masters of Business Administration, May 1974
Member Beta Gamma Sigma, national business honorary
Selected for International Business Program
CLARKSON UNIVERSITY, Potsdam, NY.
Bachelor of Science in Chemical Engineering, June 1967
Awarded National Science Foundation Fellowship
PUBLICATIONS
Neural Network Ensemble Strategies for Financial Decision Applications'; forthcoming in
Computers & Operations Research, with S. Dellana.
Ensemble Strategies for a Medical Diagnostic Decision Support System: A Breast Cancer
Diagnosis Application", forthcoming in European Journal of Operational Research, with P.
Mangiameli, R. Rampal, and V. West.
"Model Selection for Medical Diagnosis Decision Support System", Decision Support
Systems (36) 247-259 2004 with P. Mangiameli and R. Rampal.
"Predicting Wastewater BOD Levels with Neural Network Time Series Models" in Neural
Networks in Business Forecasting , Idea Group Publishing, with S. Dellana.
"Transfer Function Modeling of Processes with Dynamic Inputs", Journal of Quality
Technology, (3) 315-326, with S. Dellana and J. Jarrett.
"Credit Scoring using Supervised and Unsupervised Neural Networks", in Neural Networks
in Business Techniques and Applications~ Idea Group Publishing, 2002 with C. Muchineuta.
"On -Line Education in a Management Science Course — Effectiveness and Success Factors";
Journal of Education for Business, Vol. 76(1) with S. Dellana, and W. Collins.

- "Model Selection for a Medical Diagnostic .Decision Support System. BreastFer. -�.-
Detection Case'; Artificial Intelligence in Medicine, Vol. 20 2000 with =V:4West
"Neural Network Credit Scoring Models"; Computers and Operations Research, Vol. 27,
2000.
"Improving Diagnostic Accuracy Using a Hierarchical Neural Network to Model Decision
Subtasks", International Journal of Medical Informatics, Vol. 57 with V. West.
"Identifying Process Conditions in an Urban Wastewater Treatment Plant", International
Journal of Operations and Production Management, Vol. 20(5-6) 2000 with P. Mangiameli.
"Control of Complex Manufacturing Processes: A comparison of SPC Methods with a Radial
Basis Function Neural Network", OMEGA: The International Journal of Management Science,
Vol. 27,1999 with S. Chen and P. Mangiameli.
"An Improved Neural Classification Network for the Two -Group Problem", Computers and
Operations Research, Vol. 26,1999 with P. Mangiameli.
"A Comparison of SOM Neural Networks and Hierarchical Clustering Methods", European
Journal of Operational Research, Vol. 23 1996, with P. Mangiameli and S. Chen.
"Improving Product Design Effectiveness With Associative Memory Neural Networks", in
Engineering Applications in Management Science, JAI Press, Vol. 9, 1996, with S. Narasimhan.
"The Comparative Ability of Self -Organizing Map Neural Networks to Recover Cluster
Structure"; OMEGA: The International Journal of Management Science, Vol. 23 No 4, with S.
Chen and P. Mangiameli.
PROCEEDINGS
"Issues in Scheduling Dynamic Demand Service Operations", Proceedings of the Production
and Operations Management Society, New York, October, 1992, with P. Mangiameli and S.
Narasimhan.
"A Heuristic Scheduling Algorithm for Dynamic Demand Service Operations", Proceedings of
the Northeast Decision Sciences Institute, Boston, April 1992, with P. Mangiameli and S.
Narasimhan.
"Scheduling Service Operations With Dynamic Demand: A Heuristic Algorithm", Proceedings
of the Decision Sciences Institute, San Francisco, November 1992, with P. Mangiameli and S.
Narasimhan.
"A Benchmark Study of the Ability of Neural Networks to Recover Cluster Structure",
Proceedings of the Decision Sciences Institute, Washington, November 1993 with S. Chen.
"Improving Product Design Effectiveness With Associative Memory Neural Networks",
Proceedings of the Production and Operations Management Society, Boston, October 1993, with
S. Narasimhan.
"Improving the Design Retrieval Process With Associative Memory Neural Networks",
Proceedings of the Northeast Decision Sciences Institute, Portsmouth, April 1994, with S.
Narasimhan.
"Increasing the Effectiveness of Research Literature Retrieval", Proceedings of the Decision
Sciences Institute, Honolulu, November 1994, with P. Mangiameli and S. Westin.

"The Impact of First Order Positive Autocorrelation on Process -Control", -Proceedings othe
Northeast Decision Sciences Institute, Providence, March :1995",::vrR- h=J: Jarrett. Winner -of -The
Robert W. Pearson Award for best application of theory.
"Statistical Process Control of Complex Manufacturing Processes", Proceedings of the
Decision Sciences Institute, Boston, November 1995, with P. Mangiameli and S. Chen.
"The Accuracy of Neural Network Classification Models", Proceedings of the Decision Sciences
Institute, Orlando, November 1996, with P. Mangiameli and S. Chen. •
"An Improved Neural Classification Network for the Two Group Problem"; Proceedings of the
Decision Sciences Institute, Annapolis, April 1997, with P. Mangiameli.
"Employing Statistical Learning Networks to Improve Classification Decision Accuracy";
Proceedings of the Decision Sciences Institute, San Diego, November 1997, with P.
Mangiameli.
"Neural Network Applications of Quality Control: A Case Analysis"; Proceedings of the
Decision Sciences Institute, Boston, March 1998, with P. Mangiameli and C. Roethlein.
"An Investigation of The Bias/Variance Dilemma for Neural Network Classification Models",
Invited paper for Joint Conference on Information Systems, Research Triangle Park, North
Carolina, October 1998.
"Identification of Process Faults in an Urban Waste Water Treatment Plant"; Proceedings of the
Decision Sciences Institute, Las Vegas, November 1998, with P. Mangiameli.
"Improving Health Care Diagnosis"; Proceedings of the Northeast Decision Sciences Institute,
Newport, RI, March 1999 with P. Mangiameli.
"Detecting Process Disturbances with ARIMA Intervention Models"; Proceedings of the
Decision Sciences Institute, New Orleans, November 1999, with S. Dellana and J. Jarrett.
"Model Selection for a Medical Diagnostic Decision Support System", Proceedings of the
Northeast Decision Sciences Institute, Atlantic City NJ, March 2000. Winner of The Mrs. Ulker
Alasyali Best Paper Award for Health Care Services.
"Using Intervention Analysis to Develop Control Charts for Autoregressive and Moving
Average Data Structures", Proceedings of the Decision Sciences Institute, Orlando Florida,
November 2000, with S. Dellana and J. Jarrett.
"Bagging Predictors for a Decision Support System: A Credit Scoring Application",
Proceedings of the Decision Sciences Institute, Orlando Florida, November 2000.
"Modeling Process with Dynamic Inputs", Proceedings of the Northeast Decision Sciences
Institute, Pittsburgh Pa., March 2001 with S. Dellana and J. Jarrett.
"Model Selection for Improving Diagnosis", Proceedings of the Northeast Decision Sciences
Institute, Pittsburgh Pa., March 2001 with P. Mangiameli and R. Rampal. Winner of The Mrs.
Ulker Alasyali Best Paper Award for Health Care Services.
"A Comparison of Student Performance in On-line vs. Traditional Instruction", Proceedings
of the Northeast Decision Sciences Institute, Pittsburgh Pa., March 2001 with S. Dellana &
W. Collins.
BUSINESS EXPERIENCE
WESTGREN ASSOCIATES, Barrington, RI.
President, 1982-1990

Developed $3 million small business focused on retail products for. children~
Implemented distributed information system for inventory management and purchasing control. --
UNIROYAL INC., Middlebury, CT.
Manager of Business Planning, 1979-1981
Responsible for annual operating and strategic plans for the 5 business units of the Plastic
Products Division with annual sales of $200,000,000.
CF INDUSTRIES, Long Grove, IL.
Senior Planner, 1975-1979
Responsible for business, production, and logistic plans for a $1 billion agricultural business.
ATLANTIC RICHFIELD, Chicago, IL.
Project Manager, 1967-1974
Responsible for the planning, design, and construction of major chemical manufacturing
facilities.
TEACHING EXPERIENCE
East Carolina University, Greenville, NC
Assistant Professor of Decision Sciences. 1996-2001
Responsible for teaching graduate and undergraduate courses in Operations Management
Courses taught, 1996-1999
DSCI 3023, Management Science
DSCI 3123, Operations Management
DSCI 4383 Management of Operations Technology
DSCI 6123, Graduate Level Operations Management
SERVICE
Bryant College, Smithfield, RI.
Lecturer in Management, 1990-1994
Nominated for Excellence in Teaching, May, 1994
Faculty advisor for Student APICS Chapter
Reviewer for European`Journal of Operational Research
Reviewer for Computers & Operations Research
Reviewer for IEEE Transactions on Neural Networks
Reviewer for Decision Support Systems
Reviewer for Journal of Environmental Engineering and Science
Reviewer for Northeast Decision Science Proceedings, 1994-2003
Operations Management Track Chair for Northeast Decision Science Institute, 1998 & 1999
Board of Directors, Northeast Decision Science Institute, 1999-2001
Board of Directors ASQ, Section 1126
MBA Case Competition Advisor
PROFESSIONAL AFFILIATIONS
The Institute of Management Sciences
The Decision Sciences Institute
American Society for Quality Control, ASQC
I. - IV

SCOTT A. DELLANA
t 301 Fault Circle
Greenville NC 27858
East Carolina University
Department of Decision Sciences
3410 Bate Classroom Bldg
Greenville NC 27858
[phone]
Present Rank: i.ssociate Professor, Tenured (1999)
Education:
University of Missouri -Rolla, Ph.D. in Engineering Management, May 1993
Major Manufacturing Systems Engineering. Minor Field: Quality
Dissertation title: Application of Total Quality Management to a Research and Development Environment.
Universiy of Missouri -Rolla, Master of Science in Engineering Management, May 1991.
Minor Field: Engineering Mechanics
University of Pittsburgh, Bachelor of Science in Civil Engineering, December 1983
Majo : Soil Mechanics and Foundation Engineering: Magna Cum Laude
Professional Certifications. EIT (Engineer in Training)
Administration and Teaching Experience:
EAST CAROLINA UNIVERSITY, Greenville, NC. 8/93-Present
Administration: Chair of Decision Sciences Department, College of Business 8/01-present. Duties involve
managing the daily operations of the department and setting future direction for a faculty of about 27 people.
Typical activities include: developing class schedules, managing operating budgets, evaluating faculty
performance and determining faculty compensation, hiring of new faculty, leading departmental meetings,
managing faculty and student problems, assigning of graduate assistants, and setting of annual departmental goals.
Teaching: Courses taught include: Operations Management (Graduate and Undergraduate and online),
Management Science, Materials Management, Project Management, Management and Analysis of Quality, and
Production Planning & Control.
Overall student evaluations: 4.3 out of 5 (1993-97) and 5.9 out of 7 (1997-present).
Advis!ng: have advised approximately 30 students (majors and non -majors).
DRURY COLLEGE, Fort Leonard Wood, MO. 9/92-12/92 (School of Business).
Courses taught: Operations Management
Other Experience:
UNIVERSITY OF MISSOURI-ROLLA CENTER FOR TECHNOLOGY TRANSFER AND
ECONOMIC DEVELOPMENT, Rolla, MO. 9/91-5/93
Quality Assurance Specialist - Coordinated Quality Assurance program for DemMaTec Foundation, Inc., teaching
of training courses, consulting and seminar speaking engagements.
MCDONNELL DOUGLAS CORPORATION, St. Louis, MO. 10/86-9/91
Lead Engineer — Responsible for supervision of aircraft structural engineers in production of various aircraft
including: Harrier II+, A-12 Advanced Tactical Aircraft, ATF-23 Advanced Tactical Fighter, and F15-Eagle.
ROCKWELL INTERNATIONAL CORPORATION, Columbus, Ohio. 2/84-10/86
Aerospace Structural Engineer - Supported B-IB Strategic Bomber production as structural analyst.
STONECRAFT COMPANY, INC., Pittsburgh, Pennsylvania, USA and Carrara, Italy. Youth
(My father, Leno J. Dellana, was the President of Stonecraft — a stone and marble fabrication company).
I lived iin Italy from the ages of 9 to 13 as a result of my father's international joint venture with
Menchini & Dellana, Incorporated. Attended Italian schools, where I mastered fluency of the
language and culture).

Original Works/Research:
Published Journal Articles
West, David; Dellana, Scott.; Qian, Jingxia. (2004). Neural Network Ensemble Strategies for Financial Decision
Applications. Computers in Operations Research. In Press.
Dellana, Scott A.; Snyder, David. (2004). Student Future Outlook and Counseling Quality in a Rural Minority
High Sch ol. High School Journal. Forthcoming.
Dellana, Scott A.; David West. (2002). Transfer Function Modeling of Processes With Dynamic Inputs.
Journal (Quality Technology. 34:315-326.
Dellana, S. and Glascoff, D. (2001). The Impact of Health Plan Profit Status on Consumer
Satisfaction With Health Care. Journal of Nonprofit & Public Sector Marketing. 9 (3):1-19.
Dellana, S. and Glascoff, D. (2001). The Impact of Health Insurance Plan Type on Satisfaction
With Health Care. Health Care Management Review, 26(2): 33-46.
Dellana, S., Collins, W. and West, D. (2000). On -Line Education in a Management Science Course:
A Study of Effectiveness and Performance Factors. Journal of Education for Business, 76(1): 43-47.
Dellana, S. and Hauser, R. (2000). Corporate Culture's Impact on a Strategic Approach to Quality.
Mid -American Journal of Business, 15(1): 9-20.
Killingsvforth, B., Hayden, M. and Dellana S. (1999). Total Quality Involvement in the Classroom:
Integrating TQM into a Systems Analysis and Design Course. College Student Journal, 33(3): 465-476.
Dellana, S. and Hauser, R. (1999). Toward Defming the Quality Culture. Engineering Management
Journal, 11(2): 11-15.
Dellana, S. A., Bass, K. E., and Hebert, F. J. (1998). Industry Managers' Reactions to Total Quality
Management in U.S. Business Schools. Mid -American Journal of Business, 13(1): 73-82.
Dellana, S. A. and McLeod, M. E. (1997). Relationships of Instructors' Personalities With Total Quality
Management Practice in the University Classroom. Psychological Reports, 81: 99-118.
Collins, W. H. and Dellana, S. A. (1997). Process Analysis Using Automated Regrouping. Quality
Engineering, 10(1): 185-193.
Dellana, S. A. and Radahkrishnan, S. (1996). A Statistical Approach to Inspection System Selection.
Quality Engineering, 9(1): 135-141.
Bass, K. E., Dellana, S. A., and Hebert, F. J. (1996). Assessing the Use of Total Quality Management in
the Business School Classroom. Journal of Education for Business, 71(6): 339-343.
Dellana,?. A. and Coffin, M. A. (1996). Quality Management Tactics in U.S. Manufacturing: Do They
Rival thapanese? Engineering Management Journal, 8(2): 27-34.
Hebert, F. J., Dellana, S. A., and Bass, K. E. (1995). Total Quality Management in the Business School:
The Fac lty Viewpoint. SAMAdvanced Management Journal, 60(4): 20-31.
Dellana, S. A. and Wiebe, H. A. (1995). An Exploration of Total Quality Management Practices in U.S.
R&D Organizations. Engineering Management Journal, 7(2): 23-29.

Conference Papers in Published Proceedings
Dellana, Scott; West, David. March 2004. A Comparison of Linear and Non -linear Models for Process
Quality Control. Proceedings of the Northeast Decision Sciences Institute. Pgs. 287-289, Atlantic City, NJ.
West, David; Dellana, Scott; & Qian, Jingxia. March 2004. Ensemble Strategies for Financial Decision Support.
Proceedings of the Northeast Decision Sciences Institute. Pgs. 180-182, Atlantic City, NJ.
Killingsworth, Brenda; Schellenberger, Robert; & Dellana, Scott. March 2004. The Use of Geographic
Information System to Track and Forecast Health Care Needs for a Regional Hospital.
Proceedings of the Northeast Decision Sciences Institute. Pgs. 315-317, Atlantic City, NJ.
West, David; Dellana, Scott. November 2003. Nonlinear Forecasting Models for Predicting Wastewater
Effluent Loads. Best Paper Award. Proceedings of the Decision Sciences Institute. Washington D.C.
West, David A.; Dellana, Scott. March 2003.Monitoring Process Quality With Neural Network Time Series
Models. Proceedings of the Northeast Decision Sciences Institute. Page(s) 277-9. Providence, RI.
Dellana, Scott A.; Prichard, Jan, Hayden, Michael & Killingsworth, Brenda. March 2003. Role -Based
Access Cntrol Techniques for Sharing Medical Information Across Integrated Delivery Systems.
Proceedings of the Northeast Decision Sciences Institute. Page(s) 300-2. Providence, RI.
West, Da id A.; Dellana, S. & Jarrett, J.. March 2001. Modeling Processes With Dynamic Inputs.
Proceedi gs of the Northeast Decision Sciences Institute. Page(s) 316-8.
Dellana, Scott A.; Collins, W. & West, D.. March 2001. A Comparison of Student Performance in
On-line Versus Traditional Instruction.. Proceedings of the Northeast Decision Sciences Institute.
Page(s) 4-6.
West, D. and Dellana, S., and Jarrett, J. (November 2000). Using Intervention Analysis to Develop
Control Charts for Autoregressive and Moving Average Data Structures. Manuscript accepted for
presentation at the 2000 Decision Sciences Meeting in Orlando, FL.
West, D., Dellana, S. and Jarrett, J. (March 2000). Using ARIMA Intervention Modeling to Detect
Special Causes in Autoregressive Control Charts. Proceedings of the 29`h Annual Meeting of the
Northeast Decision Sciences Institute (pp. 271-273). Atlantic City, NJ.
Collins, ., Dellana, S., West, D. and Collins, C. (March 2000). Achieving Interactivity in an On -Line
Course. Proceedings of the Annual CITE Conference (http://www.cite.ecollege.com/index.learn).
Denver, CO.
West, D. Dellana, S. and Jarrett, J. (November 1999). Detecting Process Disturbances With ARIMA
Intervention Models. Proceedings of the 306 Annual Meeting of the Decision Sciences Institute
(pp. 1421-1423). New Orleans, LA.
Dellana, LS. and Glascoff, D. (October 1999). The Impact of Rural Versus Urban Location on Consumer
Satisfactfion with Healthcare. Proceedings of the 1999 Atlantic Marketing Association Conference
(pp. 523;532). Annapolis, MD.
Dellana, S. and Glascoff, D. (July 1999). A Study of Satisfaction With Health Care Options in the
United tates. Proceedings of the 5th International Conference of the Decision' Sciences Institute
(pp. 689 691). Athens, Greece.
Dellana, S. and Glascoff, D. (March 1999). The Impact of Plan Choice and Plan Changing on Satisfaction
With Health Care. Proceedings of the 1999 Northeast Decision Sciences Institute (pp. 245-247).
Newport, RI.
Dellana, S., and Hauser, R. (November 1998). An Empirical Examination of the Impact of Corporate
Culture on Total Quality Management. Proceedings of the 29th Annual Meeting of the Decision
ScienceS Institute (pp. 1690-1692). Las Vegas, NV.

Dellana, S , and Glascoff, D. (March 1998). Variables Affecting Consumers' Satisfaction With Health Care.
Proceedings of the 1998 Northeast Decision Sciences Institute (pp. 326-328). Boston, MA.
Dellana, S , and Glascoff, D. (November 1997). Assessing the Quality of Health Care Service Plans.
Proceedings of the 28th Annual Meeting of the Decision Sciences Institute (pp. 1632-1634).
San Diego CA.
Dellana, S , Hauser, R. and Nicholson, J. (March 1997). Toward a Relationship of TQM and
Organizational Culture: Case Studies. Proceedings of the 1997 Northeast Decision Sciences Institute
(pp. 302-304). Annapolis, MD.
Dellana, S,, Bass, K., and Hebert, F. (1997). TQM Practice in the Business School: Industry Views and
Expectations. Proceedings of the 1997 Southeast Decision Sciences Institute (pp. 248-250). Atlanta, GA.
Dellana, S , Hauser, R. (November 1996). TQM and Corporate Culture: An Empirical Examination.
Proceedin s of the 27th Annual Meeting of the Decision Sciences Institute (pp. 1736-1738).
Orlando, FL.
Dellana, S., Bass, K., and Hebert, F. (1996). University Professors Translate the TQM Movement into Higher
Education. Proceedings of the 1996 Southeast Decision Sciences Institute (pp. 306-308). Charleston, SC.
Bass, K., Dellana, S. and Hebert, F. (1995). Total Quality Management in the University Classroom: Current
Practices to Business Schools. Proceedings of the 1995 Southern Management Association (pp. 468-470).
Orlando, L.
Dellana, S., Hebert, F., and Bass, K. (March 1995). The Attitudes of U.S. Business School Faculty Toward
TQM and its Use in the Classroom. Proceedings of the 1995 Northeast Decision Sciences Institute
(pp. 452-454). Providence, RI.
Dellana, S. and McLeod, M. (1995). Instructor Personality Type and Total Quality Management in the
Classroom: A Pilot Study. Proceedings of the 1995 Southeast Decision Sciences Institute (pp. 93-95).
Wilmingtn, NC.
Dellana, S. and Wiebe, H. (October 1994). An Exploration of Total Quality Management Practices in US
R&D Organizations. Proceedings of the 1994 International Conference of the American Society for
Engineering Management (pp. 46-51). Washington, DC.
Dellana, . and Wiebe, H. (1994). The Use of Student Teams to Identify CQI Opportunities. Proceedings
of the 1994 International Conference of the American Association for Engineering Education
(pp. 1285-1290). Edmonton, Alberta,Canada.
Dellana, S. and McLeod, M. (March 1994). The Myers -Briggs Type Indicator as a Tool for Implementing
Total Quality Management in Higher Education: A Preliminary Study. Proceedings of the 1994 Northeast
Decision Sciences Institute (pp. 313-315). Portsmouth, NH.
Dellana, S. and Wiebe, H. (October 1992). Application of Total Quality Management to Research and
Development: An Historical Perspective. Proceedings of the 1992 International Conference of the
American Society for Engineering Management (pp. 327-331). Hoboken, New Jersey.
Academic Papers Presented (not published in Proceedings)
Dellana, . and Hauser, R. (1996). A Theoretical Basis for the Quality Culture. Presented at the
POMS 6 International Conference in Indianapolis, Indiana.
Other Publications
West, D. and Dellana, S. Predicting Wastewater BOD Levels with Neural Network Time Series Models.
Neural etworks in Business Forecasting, Chapter V, pp 102-120: IRM Press, 2004.
Dellana,; S., Hebert, F., and Bass, K. (1995). TQM in U.S. Business Schools: A Faculty Perspective.
the career forum, 14(2), 20-24.

($'14\ Presentations:
Managing Business Projects. Seminar presentation to a group of MDs for the Research Department of Internal
Medicine at the Brody School of Medicine, East Carolina University, December 12, 2001.
Purchasing and Supply Management: Partnering Industry and Business Education. Meeting of the
National ssociation of Purchasing Managers, Eastern Carolina Section, November 11, 1997.
Purchasing and Supply Management in the Business School Curriculum. Meeting of the National
Association of Purchasing Managers, Eastern Carolina Section, January 14, 1997.
An Introduction to the Principles and Elements of Total Quality Management. Seminar presentation for
the ECU Graduate Dean's Office and the ECU Office of Sponsored Programs, September 1994.
Manufacturing Assessment Program - Quality Module. Symposium for the SBA, sponsored by the
University of Missouri -Rolla Center for Technology Transfer, 1993.
Textbook Reviews:
Burns, James R. Information Technology Management (Prentice Hall, 2001). Reviewed entire
draft uscript.
Finch, B on. OperationsNow.Com: Processes, Value. and Profitability (McGraw Hill/Irwin, 2001).
Reviewed entire rough draft manuscript.
T.D. Klastorin. Project Management: Techniques and Trade-offs (Prentice Hall, 2000). Reviewed
prospectus submission for future manuscript.
Thomas oster. Managing Quality: An Integrative Approach (Prentice Hall, 1998). Reviewed first
half of r ugh draft manuscript.
James A. Fitzsimmons and Mona J. Fitzsimmons (1998). Service Management: Operations, Strategy
and Information Technology (Irwin McGraw-Hill, NY, 1998). Reviewed entire textbook.
Roberta S. Russell and Bernard W. Taylor, III (1998). Operations Management: Focusing on Quality
and Competitiveness (Prentice Hall, Englewood Cliffs, NJ, 1998). Reviewed entire textbook.
Papers SubmittJd and Under Review:
West, D
Manusc
and Dellana, S. Advanced Forecasting Models for Predicting Wastewater Effluent Loads.
ipt under second review at the International Journal of Forecasting.
Grants Received:
Grant Proposal for ECU School of Business Summer 2000 Research Stipend in the amount of $8,000.
Research topic: Using ARIMA Intervention Modeling to Detect Special Causes in Autoregressive Control
Chart Data. Award made by East Carolina University School of Business.
Grant Proposal for ECU School of Business Summer 1997 Research Stipend in the amount of $7,500.
Research topic: Assessing Health Care Service Gaps Using SERVQUAL: HMO Organizations versus
Private Physician Care." Award made by East Carolina University School of Business.
Grant $oposal for ECU School of Business Summer 1996 Research Stipend in the amount of $7,500.
Researchtopic: Theory and Empirical Assessment of the Quality Management Culture Concept.
Award made by East Carolina University School of Business.
Awarded Post -Doctoral Fellow in the amount of $10,000. Research Topic: Application of Total Quality
Management to Higher Education. Part of the University of Missouri -Rolla TQM implementation effort -
5/93-8/93

Course and Curriculum Development:
Developing an online course in Project Management.
Developing a course in Supply Chain Management.
Restructured the Operations Management concentration.
Restructu ed the Materials Management course to include emphasis on Purchasing and Supply
Chain Management (1996).
Developed a new course in Project Management.
Developed a new course in Quality Management.
Work -in -Progress:
West, D. nd Dellana, S. Currently performing analysis of data for forecasting business failure.
Dellana, S. and West, D. Currently writing manuscript for journal submission of nonlinear models in process
quality control. Target Journal: Journal of Quality Technology.
Dellana, S. and West, D. Currently writing manuscript for journal submission of wastewater case study for
Morehead City, NC. Target Journal: Interfaces.
Kros, J., West, D. and Dellana, S. Research in work on overbooking in a student health center.
Rosenthal , D., Dellana, S. Kros, J, and Seeman, E. Currently performing data collection of Computerized
Physician Order Entry System pilot implementation program at Pitt County Memorial Hospital.
Public and Professional Service Activities:
Reviewefor the European Journal of Operational Research, 2004.
Reviewer for the 2004 Northeast Decision Sciences Institute conference.
Reviewe and discussant for the 2003 Northeast Decision Sciences Institute conference.
Elected t Board of Directors for the Northeast Decision Sciences Institute, 2000-2003.
Track Chair for the 2000 Northeast Decision Sciences Institute conference.
Reviewer for the 2000 Northeast Decision Sciences Institute conference.
Discussant for the 2000 Northeast Decision Sciences Institute conference.
Campus Representative for the 2000 Northeast Decision Sciences Institute conference.
Manuscript reviewer for the journal, Integrated Manufacturing Systems (1999).
Session Chair for the 1999 International Decision Sciences Institute conference.
Track Chair for the 1999 Northeast Decision Sciences Institute conference.
Reviewe and best paper judge for the 1998 American Society for Engineering Management conference.
Session C hair for the 1998 Northeast Decision Sciences Institute conference.
Paper reviewer and best paper judge for the 1997 American Society for Engineering Management conference.
Paper reviewer for 1997 Decision Sciences Institute national conference.
Paper discussant at the 1997 Northeast Decision Sciences Institute conference.
Paper reviewer and best paper judge for the 1996 American Society for Engineering Management conference.
Paper reviewer for 1996 Northeast Decision Sciences Institute Proceedings.
American Society for Quality — East Carolina Section 1126 Chair 1997-98 and Treasurer1995-97
Alpha Iota Delta Honorary of the Decision Sciences - East Carolina University Chapter
President 1996-97 and Vice President 1997-99.
National Association of Purchasing Managers — Scholarship Chair 1996-97.
Professional Consulting Experience:
NACO Materials Handling Group, Inc. for Demand Flow Technology implementation, 1997-1999.
ASMO, Inc., Quality Control Training Course for ISO 9000 Certification, May 1996.

f Committee Assignments:
University:
College of Business:
Department:
Research & Teaching Grants Committee — Term length 1999-2002.
Career Education Committee —1998-99 Vice Chair. Term length 1996-1999.
Academic Libraries Committee — term length 1998-1999.
Graduate Committee — term length 1997-1999.
Cooperative Education representative - 1997-present
Outreach Committee —1997-98.
Operations Management Curriculum Committee — 1996-present.
Professional Affiliations:
American Society for Quality — member since 1993.
National i ssociation of Purchasing Managers — member since 1996.
Decision Sciences Institute — member 1992 — 2001.
American Society for Engineering Management — member 1992 —1998.
Production and Operations Management Society — member 1996 -1998.
Society of Manufacturing Engineers — member 1992-1994.
Awards and Honors:
Alpha Iota Delta Honorary of the Decision Sciences — November 1992
University of Missouri -Rolla Chancellor's Fellowship - September 1991
Tau Beta Pi National Engineering Honorary Society — March 1983
William Radcliffe Smith Memorial Award in Civil Engineering — April 1984
Chi Epsilon National Civil Engineering Honorary Society — December 1982
Who's VYho Among Students In American Junior Colleges - May 1979
Personal:
Born July 6, 1958.
U.S. Citizen. Have held a variety of government security clearances.
Married; four children ages 7, 11, 15, and 17 years.
Fluent it Italian. Conversational in Spanish.
References:
Available upon request.

1
WWTP FLOW
RAINFALL
TREND
DATA
[NOTE: WWTP flow and rainfall data result from actual readings at the WWTP. Morehead
City's WWTP is a certified NOAA facility for documenting rainfall data].

TABLE 2.3
COMPARISON OF WATER SUPPLY WELL PUMPAGE VERSUS
WATER SALES VERSUS WWTP FLOWS
TOWN OF MOREHEAD CITY
1975 - 2002
Year
Well
Pumpage
Avg. (GPD)
Metered
Sales Avg.
(MGD)
WWTP Flow
Avg. (GPD)
Water Loss
Well vs Sales
(%)
Water Gain
Sales vs
WWTP
(%)
Annual
Rainfall (IN)
1975
619,995
506,622
1,150,000
18.29
55.95
1976
666,247
507,000
1,200,000
23.90
57.75
1977
716,164
558,173
920,000
22.06
39.33
1978
729,000
585,277
800,000
19.72
26.84
1979
704,000
604,120
830,000
14.19
27.21
1980
780,000
579,000
773,000
25.77
25.10
1981
755,000
572,000
1,257,000 _
24.24
54.49
48.95
1982
766,000
645,000
1,162,000
15.80
44.49
58.89
1983
858,000
662,000
1,523,000
22.84
56.53
66.37
1984
906,000
711,000
1,250,000
21.52
43.12
63.89
1985
1,009,000
847,000
1,201,000
16.06
- 29.48
65.35
1986
975,000
892,000
1,050,000
8.51
15.05
48.48
1987
904,581
r
882,901
1,032,263
2.40
14.47
53.68
1988
931,613
848,167
1,251,068
8.96
32.20
52.67
1989
950,726
852,334
1,310,142
10.35
34.94
71.28
1990
974,156
900,638
995,025
7.55
9.49
37.86
1991
993,345
907,545
1,151,789
8.64
21.21
62.47
1992
977,898
890,142
1,133,880
8.97
21.50 .
56.38
1993
986,306
913,167
1,130,568
7.42
21.36
54.99
1994
1,040,907
905,816
1,195,549
_ 12.98
24.60
55.07
1995
1,072,000
938,469
1,236,202
12.46
22.54
51.84
1996
1,207,686
1,040,535
,
1,386,839
,
13.84
25.97
72.56
1997
1,184,127
1,032,735
1,252,528
12.79
17.62
51.85
1998
1,218,008
_
1,013,258
1,560,700
16.81
35.35
70.68
1999
1,187,496
1,055,672
1,348,410
_
11.10
21.80
54.70
2000
1,196,003
992,184
1,504,378
,
17.04
33.86
67.00
2001
1,151,879
956,705
1,117,114
16.94
14.36
35.04
2002
1.142.898
971.763
1.280.183
14.97
31.73
60.34
11G-PC 11D8051FTL120041141H201 PR2.TXT
MH-C CT 1-201-PLAN-R02.TXT
27
040223

[2004: Completed Sewer Rehab Project]
[2003: 90 + inches of rain - a record for this region;
excessive high wlter table throughout year; sewer
rehab. Project begun; exceeded flow permit for yearly
average; 3 montli DWQ flow violations].
[2001: Drought ear; extremely low rainfall]
[1998: Winter 1 Nino event; storm events; 90 + %
flow for year triggers official line extension moratorium]
[1996: Inflated ainfall; Hurricane storm events during
summer months]
N @co hLLII
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MONTHLY RAINFALL M. C. WWTP
1997 1998 1999 2000 2001 2002 2003
JAN.3.57 LL,213. 3.39 4.06 1.42 4.32 2.84
FEB. 2.77 12.36 2.23 2.40 2.47 3.29 3.86
MAR. 3.81 2.42 2.56 1.98 3.85 5.53 llr
APR. 3.94 4.85 2.93 7.51 2.29 1.39 232
MAY. 2.35 6.78 3.50 4.39 1.96 5.56 13.41
JUN. 2.75 1.22 4.37 8.188 5.83 4.16 6.46
JUL. 5.25 5.87 2.47 1122 7.35 8;04 8.8
AUG. 3.04 15.49 13.22 242 4.26 10.26 6.0
SEPT. 8.57 6.31 11.21 10. 1.49 .5, 2 11.1
OCT. 2.46 0.98 4.13 0.54 0.44 4.02 ,6
NOV. 6 1.82 3.11 5.79 1.53 5.14 3.90
DEC. Is_la 5.15 1.58 3.24 2.15 2.81 7.36
TOTAL 50.46 70.68 54.70 67.44 35.04 60.34 91.52
C

[EXCERPT]
Municipal Compliance Initiatives Program
PERFORMANCE EVALUATION
TOWN OF MOREHEAD CITY
WASTEWATER TREATMENT PLANT
PREPARED BY
CONSTRUCTION GRANTS AND LOAN SECTION
DIVISION OF WATER QUALITY
AUGUST 2002

CONCLUSIONS AND RECOMMENDATIONS-------,--,- ---
OPERATION AND MAINTENANCE
A Mu �cipal Compliance Initiative (MCI) audit was performed for the town of
MoreheadtY system. City to evaluate its wastewater s stem. The evaluation included (1) a
determination bf the status of the wastewater treatment plant's current NPDES permit
requirements. A comparison, expressed as percent of limit, was made for Flow,
Biological Oxygen Demand (BOD5,), and Total Suspended Solids (TSS); (2) a table top
Inflow/Infiltra 'on (I/I) analysis. The analysis was based on available records rather than
conducting field work; (3) an evaluation of both the physical condition and equipment to
determine the plant's ability to meet the requirements of the NPDES permit; (4) a review
of the sewer budget and the town's user charge; (5) an analysis of the performance of the
treatment facility at current and design conditions, and (6) staffing requirements for the
facility. Based on these analyses the following conclusions and recommendations are
made:
1. The ton of Morehead City had one (1) notice of violation and one (1) notice of
deficie�c duringthe eighteen(18) month review period, those being for toxicity.
Y �
(Thougi not related to the four (4) parameters the MCI monitors (BOD5, TSS,
Ammonia, and. Flows,_
2. The Inflow/Infiltration (111) analysis indicated that the town has both an inflow and
wet weather infiltration problem. During dry periods when the groundwater table
is low J approximately five(5)percent of the design capacity flow enters the plant
, PP Y g P
as infi}tration. As the groundwater rises above the level of most of the collection
system, extraneous water leaks into the pipes and an additional 78 percent flow
enters the plant in excess of the expected Average Daily Flow (ADF). Inflow
presets even a greater problem. During one five (5) day period in which 2.21
inches of rain fell, an increase of flow attributed to inflow into the plant was over
three end one-half million gallons. These values indicate that under certain
conditions, each inch of rainfall produces an additional flow of approximately
1.65 million gallons at the plant. Of course under these conditions, solids can more
readir be washed out of the plant
3. The t?wn of Morehead City has approximately 71 miles of interceptor and
cone tion sewers ranging from 6 to 20 inches in diameter. This equates to over
639 ' ch miles of pipe. An old EPA criterion used to determine excessive
infil tion is a rate which exceeds 3,000 gallons per day per inch -mile (gpdim) of
pipe. At this rate approximately 2,000,000 gpd in additional flow above the
exile ted average daily flow would be expected at the plant. Of course if flows at
- 19 -

(4111
this magnitude were to enter the plant, the facility would not be able to:handle
them. Wet weather infiltration has been calculated to be approximately 500,000
gpd at the treatment plant. With the length and size of sewer lines, based the EPA
criteria, innfiltration is not considered excessive. However, these flows equate to
almost orke-third the permitted flow and would have a marked impact on the
facility. Large increases in flow, due to inflow, at Morehead City's treatment
facility follow rain fall events. Recorded flows of increases above the expected
average daily flow of 500,000 to 700,000 gpd were not uncommon several days
following rainfall events. A general EPA guide line for excessive inflow is that if
inflow is i greater than 275 gallons inflow per resident it is considered excessive.
With 4,333 customers, and assuming three (3) persons per residence, an inflow in
excess of 3,500,000 would have to occur to be considered excessive. Guide lines
are just that and are not always applicable to every case. In the case of Morehead's
treatment facility, should flows of 3,500,000 enter the plant, the facility could not
function. Morehead City has an aggressive inflow/infiltration program and should
be commended on the work that they have accomplished. It is suggested that they
continue or increase the level of rehabilation they are now performing.
4. Based on reported Daily Maintenance Reports (DMRs), the treatment plant at
Morehead City is performing exceptionably well for a secondary treatment plant.
During the eighteen (18) months under review, January 2001 through June 2002,
the tricking filter plant averaged 95% BOD5 removal and 93% TSS removal.
efficiencies maybe the physical design of the plant.
A contributing factor to these efficie p y g
This doe not necessaillf mean the actual type of facility but rather the size of some
of the conponents on the site when compared to the flow into the plant. The
Primary deeper the dee er of the secondary clarifiers, as well as the combined size of
the chlorine contact chambers are much larger than required for the average
influent flow. The additional storage (size) of the basins provide quiescent zones
that allows the solids in the wastewater additional settling time. Another factor
that could aid in better effluent quality is the weir length of both the primary and
secondary clarifiers. With the longer lengths, less liquid passes over each linear
foot of 7 eir, thus reducing the hydraulic velocities. With slower velocities, solids
are less susceptible to beingdrawn over them.
P
5. There is one problem that could be associated with one (1) of the two (2)
secondary clarifiers. Even though both clarifiers meet or exceed design criteria,
there is a problem with at least one of them, that being its depth. While one is
eleven (11) feet deep, one that could present a problem is only seven (7)feet deep.
Today's clarifiers are typically designed to be twelve (12) feet deep or deeper.
The inc eased depths aid in preventing an upset in the solids that have settled to
the bottom associated with high flows that enters the plant from time to time.
-20-

6. The two i2) trickling filters have the design capacities to handle a much higher
influent tlow, as much as a third more, than is typically experienced today.
However, as tighter restrictions are probably going to be imposed in future NPDES
permits, the filters may not be able to meet those requirements. As mentioned
earlier, the plant is operating above exceptions and to get higher performance may
be unobtainable. Morehead City has initiated plans for a new tertiary treatment
plant and they are to be commended for this inititative.
7. The average residual chlorine discharge from the treatment facility over the
eighteen 18) month review period was 1.3 mgfl. Even though Morehead City
does not have a NPDES chlorinelimi discharging chlorine at this level in the
effluent could cause toxicity problems as a 'deuced with a notice of violation and
a notice f deficiency issued by NCDENR It is suggested that the chlorine feed
rate be reduced or a su ur io de -or -other chlorine neutralizing system be
installed.
8. The chlorine contact basins had considerable amounts of settled solids at their
bottoms. In some areas, they were accumulated to a depth of sixteen (16) inches.
Settled s lids in chlorine contact basins can easily be placed into suspension by
hydraulic flows. If suspended, the solids can be discharged with the final
y ' ipermit limits. It is suggested jeopardizing the NPDES that the solids not
be allowed to build up in these basins, but rather they be cleaned of them
periodically.
9. Under current conditions, the two aerobic digesters have sufficient detention times
for the solids produced at the plant. At design parameters they are not. Each of the
digester's aerator is sized sufficiently to successively reduce the volatile solids
introduced into them, and mathematically the horsepower supplied for mixing is
sufficient. However, as deep as the digesters are, even with the use of a draft tube
on the aerators, some of the solids near the bottom of the structure may not be
completely mixed. Another possible problem with the digesters are that they are
self decanting. Some solids are constantly being passed through the overflow back
into the treatment train. This means that there is a possibility that some solids may
pass through the treatment train several times. As the particles are digested they
are red9ced in size and could eventually become ash. Small particles and ash are
mel difficult to settle and easilypass into the final effluent. As the digesters
extremely y
have f ed platform aerators, the surface of the digesters must remain constant,
negatin the use of a swivel arm decanting device. If in the future the aerators
requirereplacement it is suggested that floating aerators and a swivel arm
decanting device be considered.
-21-

10. The calculated sludge production indicates that the number of sludge drying beds
are insufficient. Design criteria suggests that each of the beds be used eight (8)
times per year. The calculations indicate that the beds must be used twelve (12)
times per year under current conditions. This suggests that the sludge would be
removed prior to being completely dry. The town has an excellent storage facility
for the solids from the beds. A 50 foot x100 foot metal storage building is on site
that provides storage for up to one year. The extended period of time provided by
this stora a facility aids the town in meeting its class B sludge requirements.
11. EPA guidelines indicate that slightly approximately 4 man years (8,000 hours) are
required to operate the plants at Morehead. Presently about 3 Y2 man years are
being dedicated and only account for time spent on the physical facility. Any time
spent on a collection system or pump stations outside the physical plant site is
not inclu l ed. The town may wish to consider an additional employee.
- 22 -