Transcript Integrated Water Cycle Management

Part 2 - Simplified Strategy
The IWCM Process
The IWCM process consists of two main parts:
Part 1: An Evaluation Study ( recently completed); and
Part 2: A Strategy ( this study).
The IWCM Evaluation Study
The study listed all utility and urban water service
targets and then identified the issues relating to
planning and delivery for water supply, sewerage and
stormwater over the next 30 years.
The IWCM Evaluation Study
The study listed all utility and urban water service
targets and then identified the issues relating to
planning and delivery for water supply, sewerage and
stormwater over the next 30 years.
Determined which issues can be addressed by existing
actions and capital works and whether any issues remain
to be addressed.
The IWCM Evaluation Study
The study listed all utility and urban water service
targets and then identified the issues relating to
planning and delivery for water supply, sewerage and
stormwater over the next 30 years.
Determined which issues can be addressed by existing
actions and capital works and whether any issues remain
to be addressed.
Recommended that a Simplified Strategy be prepared.
Process Outline
The Simplified Strategy
The Evaluation Study has found that there are IWCM issues needing actions
which are not part of the Council’s adopted “business as usual” plans and
actions.
A Simplified Strategy is undertaken where these outstanding issues can be
addressed without the need for significant capital works within the next 10
years.
Identified Issues for Council
Identified Issues for Council
Identified Issue
Action Required
Algal Blooms occurring in
Kentucky Creek onstream storage leading to
failure to meet the desired
LOS for water quality i.e.
taste and odour.
Council adopted recommendations of the
Uralla Water Treatment Plant (WTP) Organic
Removal Strategy 2006 by Hunter Water Aust.
and upgraded the dosing system at the plant as
a first step to remove taste and odour
compounds and toxins.
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
Algal Blooms occurring in
Kentucky Creek onstream storage leading to
failure to meet the desired
LOS for water quality i.e.
taste and odour.
Council adopted recommendations of the
Uralla Water Treatment Plant (WTP) Organic
Removal Strategy 2006 by Hunter Water Aust.
and upgraded the dosing system at the plant as
a first step to remove taste and odour
compounds and toxins.
$2,000
2010/11
One other recommendation of the strategy to
implement a detailed monitoring programme
was partly implemented. Council should use
the outcomes of the programme to date to
assess plant performance and then review the
benefits of continuing with the programme.
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
Inadequate information on
Security of Supply for both
Uralla and Bundarra.
Undertake a Secure Yield Study for both water
supply catchments including climate correction
of demand (use demand trend tracking model).
Note: A Water Sharing Plan is likely to be
enacted by June 2011 and may impact on
extraction rates.
$29,000
2010/11
Council to adopt a watching brief on
developments with the implementation of a
Water Sharing Plan and respond accordingly.
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
No Demand Management
Plan in place.
Implement all six Best Practice criteria.
•Prepare a Demand Management Plan.
$28,000
2011/12
No Drought Management
Plan in place.
•Prepare a Drought Management Plan
•Update Developer Charges & Pricing
Identified Issues for Council
Identified Issue
Action Required
Non-compliance with
ADWG chemical and
microbiological standards
for water quality.
Develop a risk-based Water Quality
Management Plan in accordance with the
‘ADWG Framework for the Management of
Drinking Water Quality’.
Review current management practices for plant
operation at Uralla and Bundarra for
compliance with NSW Health Drinking Water
Monitoring Plan.
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
Non-compliance with
ADWG chemical and
microbiological standards
for water quality.
Develop a risk-based Water Quality
Management Plan in accordance with the
‘ADWG Framework for the Management of
Drinking Water Quality’.
Review current management practices for plant
operation at Uralla and Bundarra for
compliance with NSW Health Drinking Water
Monitoring Plan.
$17,000
2011/12
Non-compliance with
NSW Health water quality
sampling frequency
requirements.
Improve sampling techniques and reliability of
transport to laboratory. Sample in accordance
with the updated Guide for Submitting Water
Samples to the Division of Analytical
Laboratories for Analysis 2nd Edition June
2010.
Identified Issues for Council
Identified Issue
Action Required
No Asset Management
Plans for Water Supply and
Sewerage infrastructure.
Prepare and implement robust, up-to-date
Asset Management Plans for both Uralla and
Bundarra Water Supply and Uralla Sewerage
infrastructure.
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
No Asset Management
Plans for Water Supply and
Sewerage infrastructure.
Prepare and implement robust, up-to-date
Asset Management Plans for both Uralla and
Bundarra Water Supply and Uralla Sewerage
infrastructure.
Inadequate information on
condition of sewerage
gravity mains.
Undertake audit of asset condition for data
input into Asset Management Plan.
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
No Asset Management
Plans for Water Supply and
Sewerage infrastructure.
Prepare and implement robust, up-to-date
Asset Management Plans for both Uralla and
Bundarra Water Supply and Uralla Sewerage
infrastructure.
Inadequate information on
condition of sewerage
gravity mains.
Undertake audit of asset condition for data
input into Asset Management Plan.
Effluent quality from STP
does not fully comply with
licence conditions.
Undertake an audit of performance of Uralla
STP and determine if stormwater infiltration is
affecting effluent quality.
Estimated
Cost
$28,000
Timing
2012/13
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
High operating costs of
sewerage system.
Carry out an extensive investigation (including
dye testing) to determine the source of
stormwater infiltration into sewer age system.
Carry out an energy usage audit.
$8,000
2012/13
Note: additional budget provision for corrective
work may be required.
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
Levels of unaccounted for
water losses in the system
appear to be high.
Adopt the recommendations of the
preliminary Leakage Investigation Report
(June 2010) prepared under the Water Loss
Management Program for Regional NSW
Water Utilities.
$5,000
2012/13
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
Poor performance of
Bundarra on-site waste
treatment systems poses
an ongoing potential risk
to public health.
Investigate options for the provision of a
financially and environmentally sustainable
sewerage system for Bundarra and consult with
the local community.
$45,000
2013/14
Identified Issues for Council
Identified Issue
Action Required
Risks to the water service
which are related to
Climate Change have been
identified as either high or
extreme.
Implement the recommended actions of the
NESAC Climate Change Adaptation Action
Plan 2009 for the following risks:
•Reduced water supply (to be addressed by
Secure Yield Study)
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
Risks to the water service
which are related to
Climate Change have been
identified as either high or
extreme.
Implement the recommended actions of the
NESAC Climate Change Adaptation Action
Plan 2009 for the following risks:
•Reduced water supply (to be addressed by
Secure Yield Study)
•Increased cracking of water supply pipes
(capital mains replacement program required).
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
Risks to the water service
which are related to
Climate Change have been
identified as either high or
extreme.
Implement the recommended actions of the
NESAC Climate Change Adaptation Action
Plan 2009 for the following risks:
•Reduced water supply (to be addressed by
Secure Yield Study)
•Increased cracking of water supply pipes
(capital mains replacement program required).
•Increased stormwater infiltration into
sewerage system (addressed above)
Estimated
Cost
Timing
Identified Issues for Council
Identified Issue
Action Required
Estimated
Cost
Timing
Risks to the water service
which are related to
Climate Change have been
identified as either high or
extreme.
Implement the recommended actions of the
NESAC Climate Change Adaptation Action
Plan 2009 for the following risks:
$10,000
2014/15
•Reduced water supply (to be addressed by
Secure Yield Study)
•Increased cracking of water supply pipes
(capital mains replacement program required).
•Increased stormwater infiltration into
sewerage system (addressed above)
•Increased risk of dam failure (regular audits by
the Dams Safety Committee).
Proposed staging of expenditure to implement actions
Year
Proposed
Expenditure
2010/11
$31,000
2011/12
$45,000
2012/13
$41,000
2013/14
$45,000
2014/15
$10,000
Total
$172,000