Strategic Business Plans for Water Supply and Sewerage

OBJECTIVE 3 – Demand Management (Water Supply)
Maintain unrestricted per capita consumption.
PERFORMANCE TARGET
Unrestricted demand is no more than 200 kL per household per year.
STRATEGIES
Ensure continuation of demand management strategy.
ACTIONS Responsible Target date Cost ($’000)
1. Continue water efficiency measures EMO ongoing In budget
2. Review and update demand
management plan/measures
EMO July 2012
then 2 yearly
10
7.4 Infiltration Management
Council has a problem of high inflow and infiltration of stormwater into the sewerage system.
While certain amount of inflow and infiltration are considered acceptable (and facilities are
designed with capacity to accommodate the extra flow), some areas are experiencing
excessive inflow and infiltration, which exceed the capacity of the pipes and pumping stations
and may result in overflows.
Infiltration and inflow are the result of an ageing system. The stormwater enters the system
through cracked or broken pipes, dislocated pipe joints (often due to tree roots), broken
manholes and illegal connections. Council's rehabilitation program is addressing these problems,
and is aimed at bringing the system components back to an acceptable condition.
OBJECTIVE 4 – Infiltration Management (Sewerage)
Eliminate uncontrolled overflows and excessive pumping due to high wet weather flows.
PERFORMANCE TARGET
Reduce hydraulic sewage loading to levels of services targets.
STRATEGIES
Implement inflow/ infiltration reduction program in accordance with investigation report
ACTIONS Responsible Target date Cost ($’000)
1. Investigate and eradicate inflow and
infiltration in sewerage system (use telemetry
system)
EMO
December
2018
In budget
May 2012
HydroScience Consulting
Coffs Harbour City Council Strategic Business Plan Page 39