Effluent Sewer Design Manual - Rev. 3.0 - design guidance and installation considerations

Oct 23, 2026

Upload by Fahsai

Effluent Sewer Design Manual provides structured guidance for planning and designing effluent sewer collection systems, covering system technologies, layout, odor and corrosion concerns, and hydraulics. It includes practical design examples, treatment of public rights of way such as piping, fittings, testing, isolation valves, air/vacuum release, and pressure sustaining devices, plus private on-lot connection topics like interceptor tanks. It also addresses record keeping, Orenco project support services, and includes access easement sample language and installation checklists.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages60

Reading Time2 h 31 min

AccessFree to download

Definitions

1. Planning

1.1 Collection System Technologies

1.2 Collection Technology Comparison

1.3 Other Planning Considerations

2. Design

2.1 Introduction

2.2 System Layout

2.3 Odor and Corrosion Concerns

2.4 Hydraulics

2.5 Design Example 1

2.6 Design Example 2

3. Public Rights of Way

3.1 Introduction

3.2 Piping and Fittings

3.3 Terminal End Clean-Outs and Pigging Ports

3.4 Mainline Testing and Inspection

3.5 Pipe Restraints

3.6 Isolation Valves

3.7 Air and Vacuum Release Valves

3.8 Pressure Sustaining Devices

3.9 Odor Control

3.10 Freeze and Damage Prevention

4. Private Property On-lot Connections

4.1 Introduction

4.2 Interceptor Tanks

5. Record keeping

5.1 As-Built Map

5.2 Maintenance Activities and Recordkeeping

6. Orenco Support for Projects

6.1 Evaluation and Planning Support

6.2 Design Support

6.3 Installation Support

6.4 Operation and Maintenance Support

Bibliography

Appendix 1: Access Easement Sample Language

Appendix 2: STEP/STEG Installation Checklist

| Effluent Sewer Design Manual | | | --- | --- | | Table of Contents | | | Definitions ................................................................................................. 1
1 . Planning ............................................................................................... 3
1.1 Collection System Technologies ...................................................................... 3
1.2 Collection Technology Comparison .................................................................... 5
1.3 Other Planning Considerations ....................................................................... 6
2 . Design ................................................................................................. 8
2.1 Introduction .................................................................................... 8
2.2 System Layout .................................................................................. 8
2.3 Odor and Corrosion Concerns ....................................................................... 10
2.4 Hydraulics ..................................................................................... 10
2.5 Design Example 1................................................................................ 16
2.6 Design Example 2................................................................................ 20
3 . Public Rights of Way .................................................................................... 22
3.1 Introduction .................................................................................... 22
3.2 Piping and Fittings ............................................................................... 22
3.3 Terminal End Clean-Outs and Pigging Ports ............................................................. 23
3.4 Mainline Testing and Inspection ...................................................................... 24
3.5 Pipe Restraints .................................................................................. 24
3.6 Isolation Valves .................................................................................. 25
3.7 Air and Vacuum Release Valves ...................................................................... 25
3.8 Pressure Sustaining Devices ........................................................................ 27
3.9 Odor Control .................................................................................... 27
3.10 Freeze and Damage Prevention ...................................................................... 31
4 . Private Property On-lot Connections ........................................................................ 32
4.1 Introduction .................................................................................... 32
4.2 Interceptor Tanks ................................................................................ 32
5 . Record keeping ......................................................................................... 48
5.1 As-Built Map ................................................................................... 48
5.2 Maintenance Activities and Recordkeeping .............................................................. 48
6 . Orenco Support for Projects ............................................................................... 50
6.1 Evaluation and Planning Support ..................................................................... 50
6.2 Design Support .................................................................................. 50
6.3 Installation Support ............................................................................... 50
6.4 Operation and Maintenance Support .................................................................. 50
Bibliography ............................................................................................... 51
Appendix 1: Access Easement

FAQs

What planning topics are covered for an effluent sewer collection system?

The manual covers collection system technologies, comparison of collection technologies, and other planning considerations to support system selection and upfront design decisions.

How does the manual address design concerns like odor, corrosion, and hydraulics?

It provides guidance on odor and corrosion concerns and includes a hydraulics section, supported by design examples for different system configurations.

What elements are included under public rights of way and private on-lot connections?

Public rights of way include piping and fittings, clean-outs and pigging ports, testing and inspection, restraints, valves, pressure sustaining devices, odor control, and freeze/damage prevention. Private on-lot connections include interceptor tanks and related installation considerations.

Oct 23, 2026

Upload by Fahsai