3.1.4 Reticulation

Overview

This document provides a technical summary of the water reticulation system for the Lake Bennett Estate. It includes details on the primary and auxiliary water mains, key isolation valves and distribution points, and flush-out valves at the end of each main.

Primary Water Main

The primary water main is a 110 mm pipe that runs from the main water tanks situated on the hill.

Route: The main descends the hill and crosses under the road via an easement between units #40 and #39.
Distribution Box: It then feeds into a central in-ground distribution box.

Primary water main descending from hill tanks toward the road crossing

Central Distribution Box

The central distribution box is a key node containing multiple isolation valves:

Valve	Isolates
Units #40 to #58	Supply to these units
Western Side Isolation	The six units on the western side of the lake
Northern Shore and Mid-Range Units	Units #17 to #39, and northern shore units #1 to #16

Central in-ground distribution box with isolation valves

Additional Isolation Points

Unit #17 Isolation Box

A secondary isolation box is located near unit #17, allowing further isolation of units #1 to #16.

Isolation box near unit #17 for northern shore supply

Western Easement Isolation Valve

In the infrastructure easement on the western side, there is an additional underground isolation valve that isolates the main just after it crosses the lake.

Item	Detail
Access	White PVC sleeve in the ground
Marker	T-post with a yellow cap

Western easement potable isolation valve — PVC sleeve and yellow-capped T-post

WWTP Control Room

Two in-ground boxes in the gravel beside the control-room container:

Green box — isolates potable water to the control room
Purple box — potable water into Absorption Area 1 (bottom of the hill)

See 3.2.13 Potable Water Valve Boxes.

End-of-Main Flush-Out Valves

Each potable water main terminates in a flush-out valve so the dead end of the line can be scoured (sediment, stagnant water, or after isolation and repair). These are separate from the bore flush valve at the green shed (see 3.1.1 Bore Pump).

Item	Detail
Purpose	Flush the end of each reticulation main
Typical Assembly	Above-ground standpipe on a concrete pad; quarter-turn ball valve with a long blue handle; galvanized bollard for impact protection

Northern Shore (Near Unit #1)

Flush-out valve at the end of the northern-shore main near unit #1

East Side (Near Unit #58)

Flush-out valve at the end of the east-side main near unit #58

Western Side (Between Units #79 and #80)

Flush-out valve at the end of the western main, between units #79 and #80

Version Control

Version	Date	Description
1.0	2025-10-06	Initial Release
1.1	2026-08-29	Added reticulation photos (primary main, distribution box, unit #17 isolation, western easement valve)
1.2	2026-08-30	Documented end-of-main flush-out valves; photo of the unit #1 northern-shore valve
1.3	2026-08-30	Added western flush-out valve between units #79 and #80
1.4	2026-08-30	Added east-side flush-out valve near unit #58
1.5	2026-08-30	Linked WWTP control-room potable isolation and Absorption Area 1 makeup valves
1.6	2026-08-31	Updated photo of the western easement isolation valve (PVC sleeve and marker post)

Next Review Date: 2027-02-28