Army Table of Contents.pdf

Ohio Army National Guard Base Project NLGZ062005

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WATER AND SEWER CAPACITY STUDY

TABLE OF CONTENTS

Title Page No

1.0 EXECUTIVE SUMMARY 1

2.0 INTRODUCTION 3

2.1 Purpose 3

2.2 Scope of Work 3

3.0 EXISTING CONDITIONS 5

3.1 Historical Background 5

3.2 Existing Water Distribution System 5

3.2.1 Description 5

3.2.2 Present Water Use and Cost 5

3.2.3 Problems With Existing Water Distribution System 5

3.3 Existing Sanitary Sewer System 5

3.3.1 Description 5

3.3.2 Problems With Existing Sanitary Sewer System 6

3.4 Recent Studies of Sanitary Sewer System 6

3.4.1 Sewer System Evaluation (Zande) 6

3.4.2 CCTV Work by AETC Environmental, Inc. 6

3.4.3 I/I Study by URS Corporation 6

3.4.4 Studies by M. S. Consultants 7

3.5 Jurisdiction for Water Supply and Sewerage 7

4.0 DESIGN POPULATION 8

4.1 Design Period 8

4.2 Existing Facilities and Population 8

4.2.1 Base Population During Regular Working Days 8

and During Drill Weekend

4.3 Short Range Phase (2010-2015) 9

5.0 FIXTURE UNIT COUNT 10

5.1 Flow Determination 10

6.0 WATER SYSTEM 11

6.1 Domestic Water Use 11

6.1.1 Design Criteria ` 11

6.1.2 Effective Population 11

6.1.3 Capacity Factor 11

6.1.4 Design Population 12

6.1.5 Daily Demand 12

6.2 Fire Flow Protection Requirements 12

6.2.1 Fire Flow Requirements for Buildings 13

6.2.2 Fire Fighting Duration 13

6.2.3 Fire Flow Demand 13

6.2.4 Total Water Demand 14

6.3 Peak Domestic Demand 14

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TABLE OF CONTENTS

(CONT.)

6.4 Design Water Demand Versus Actual Water Use 14

6.5 Proposed Water Distribution Improvement 15

6.5.1 Existing Water System Improvements 15

6.5.2 Future Water System Connections 16

6.6 Iron in the Water Distribution System 16

6.7 Modeling a New Water Distribution Loop 16

6.8 Estimated Costs 17

7.0 SANITARY SEWER SYSTEM 18

7.1 Quantity of Wastewater 18

7.2 General Design Criteria 18

7.3 City of Columbus, Division of Sewerage and Drainage 18

Design Criteria

7.3.1 Average Sanitary Wastewater Flow 18

7.3.2 Peak Sanitary Wastewater Flow 18

7.3.3 Infiltration and Inflow 19

7.3.4 Design Flow 19

7.3.5 Design Capacity 19

7.4 Pipe Size 19

7.5 Existing Sanitary Sewer Repairs/Replacement 20

7.6 Proposed Sanitary Improvements 20

7.7 Estimated Costs 20

8.0 CONSTRUCTION PHASING PLAN 21

9.0 ESTIMATED COSTS 22

10.0 20-YEAR LIFE CYCLE COSTS 24

10.1 Evaluation Period 24

10.2 Water System 24

10.2.1 Estimated Construction Costs 24

10.2.2 Estimated Annual Operations and 24

Maintenance (O&M) Costs

10.3 Sanitary Sewer System 27

10.3.1 Estimated Construction Costs 27

10.3.2 Estimated Annual Operations and 27

Maintenance (O&M) Costs

LIST OF FIGURES

Figure 3.1 Development Plan for Air National Guard Figure 6.1 Proposed Waterline Improvement Plan Figure 6.2 Water System Loop Concept Design Figure 7.1 Proposed Sanitary Sewer Improvement Plan Figure 10.1 Water Use Costs Over 20 years Figure 10.2 Water System Maintenance Costs Over 20 Years

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LIST OF FIGURES

(CONT.)

Figure 10.3 Sanitary Sewer Charges Over 20 Years Figure 10.4 Sanitary Sewer Maintenance Costs Over 20 Years

LIST OF TABLES

Table 4.1 Present (2006) Base Population Table 5.1 Building Fixture Unit Counts Table 6.1 Present (2006) Total Water Demand Table 6.2 Short Range Phase (2010-2015) Water Demand Table 6.3 Present (2006) Fire Flow Demand Table 6.4 Short-Range Phase (2010-2015) Fire Flow Demand Table 6.5 Actual Water Use Table 6.6 TRANSITE Waterline Replacement Costs Table 7.1 Present (2006) Sanitary Flow Table 7.2 Short Range Phase (2005-2010) Sanitary Flow Table 7.3 Sanitary Sewer Rehabilitation Costs Table 9.1 Summary of Estimated Improvement Costs Table 10.1 Water Use Costs Over 20 Years Table 10.2 Water System Maintenance Costs Over 20 Years Table 10.3 Sanitary Sewer Charges Over 20 Years Table 10.4 Sanitary Sewer Maintenance Costs Over 20 Years

APPENDICES

Appendix A A-E Statement of Work Appendix B Meeting Minutes Appendix C Summary of Water & Sewer Billings