Section_VII_-_Pressure_Sewer.pdf
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- Solicitation number
- 115581
- Issued by
- Prince George's County, Maryland
About this file
This is a standard details specification document from the Washington Suburban Sanitary Commission (WSSC Water) in Maryland, establishing technical requirements for pressure sewer installation and maintenance. The document provides detailed design specifications and installation procedures for pressure sewer systems, including flexible pipe materials (PVC and HDPE), service valve assemblies, flushing connections, blocking details, anchoring systems, air/vacuum release valves, house connections, transition manholes, and locator stations. The specifications cover systems with nominal diameters up to thirty inches and include twenty standardized detail drawings referenced throughout the document, each designated with a specific identifier (PS/1.0 through PS/8.1) that contractors must follow during construction and rehabilitation work.
These pressure sewer standards are integral to WSSC Water's indefinite delivery/indefinite quantity (IDIQ) requirements contract for urgent repairs, rehabilitation, and replacement of water and wastewater assets throughout Prince George's and Montgomery Counties, Maryland. Contractors responding to the solicitation, which closes at 2:00 p.m. on September 21, 2026, must comply with these technical specifications when executing task orders for sewer main repair, replacement, and relocation projects. The specifications ensure standardization and consistency across all pressure sewer construction activities performed under the contract, which encompasses services for water and sewer mains, valves, valve vaults, house connections, meter housings, manholes, fire hydrants, and related appurtenances.
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Text version
SECTION VII
PRESSURE SEWER
DETAILS
SEPTEMBER 2021
Page PS-1
Table of Contents WSSC STANDARD DETAILS
SECTION VII-PRESSURE SEWER DETAILS
TABLE OF CONTENTS
TITLE NUMBER
Trench Detail – Flexible Pipe PVC and HDPE Pressure Sewer PS/1.0
Pressure SHC with Service Valve Assembly PS/1.1
Flushing Connection Less than 2-1/-inch PS/1.2
Flushing Connection 2-1/-inch through 4-inch PS/1.3
Pressure Sewer Blocking Details PS/1.4
Pressure Sewer and House Connection Blocking Details for Caps and Plugs PS/1.41
Anchoring Pressure Sewers (Upper Vertical Bends) PS/1.42
Sewage Air/Vacuum and Release Valve Installation PS/1.5
Sewage Air/Vacuum and Release Valve Installation PS/1.5a
Pressure Sewer House Connection to New or Existing Gravity Sewer PS/1.6
In-Line Valve Installation PS/1.8
Pressure Sewer Blocking Detail for HDPE Pipe PS/3.0
Restraining Seal Only Mechanical Couplings PS/3.1
Transition Manhole PS/4.0
Transition Manhole Section A-A PS/4.1
Transition Manhole Section B-B PS/4.2
Connection of New Mainline Pressure Sewer or PSHC to Existing Pressure Sewer PS/5.0
Abandonment of Existing Pressure Sewer House Connection PS/6.0
Locator Station Mounted in Manhole PS/8.0
Locator Station Underground Flush Mounted PS/8.1
| 1 - PS 1.0 |
| 2 - PS 1.1 |
| 3 - PS 1.2 |
| 4 - PS 1.3 |
| 5 - PS 1.4 |
| 6 - PS 1.41 |
| 7 - PS 1.42 |
| 8 - PS 1.5 |
| 9 - PS 1.5a |
| 10 - PS 1.6 |
| 11 - PS 1.8 |
| 12 - PS 3.0 |
| 13 - PS 3.1 |
| 14 - PS 4.0 |
| 15 - PS 4.1 |
| 16 - PS 4.2 |
| 17 - PS 5.0 |
| 18 - PS 6.0 |
| 19 - PS 8.0 |
| 20 - PS 8.1 |
File details come from the government source that posted it. Updated .