Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47 Report - Pie Creek Tariff Group
September 2012
Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
© Queensland Bulk Water Authority 2012 This document is and shall remain the property of Queensland Bulk Water Authority. The document may only be used for the purposes for which it was prepared. Unauthorised use of this document in any form whatsoever is prohibited. Document Status Version Date Author Reviewed PCG Approval 1 20/4/12 AL/GH MD 2 19/9/12 GH MD
Filename: Seqwater_IrrigRen_Tariff Group Summary_PieCrk_Ver 2_Sept12
Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
Contents
1. Introduction 4
2. Asset Information 5 2.1 Irrigation Infrastructure 5 2.2 Relevant Asset Information 5
3. Projections 6 3.1 Summary 6 3.2 Significant Projects 6 3.3 Additional Commentary 8
Table Index Table 1 Summary of Irrigation Infrastructure 5 Table 2 Significant Projects 6
Appendices A Water Supply Scheme Schematic B Renewal Projections
Filename: Seqwater_IrrigRen_Tariff Group Summary_PieCrk_Ver 2_Sept12
Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
1. Introduction
Seqwater owns and operates the following seven irrigation schemes:
Central Lockyer WSS;
Lower Lockyer WSS;
Logan River WSS;
Mary River WSS;
Cedar Pocket WSS;
Warrill Valley WSS; and
Central-Brisbane WSS. Seqwater also owns and operates a distribution system, the Morton Vale Pipeline. There are nine tariff groups associated with these schemes. To assist with the determination of price paths, a forecast of future renewal expenditure is required at the individual tariff group level. The renewal projections have been developed, in accordance with the scope and methodology separately documented in the Methodology report. The projections have been developed in separate reports, one for each tariff group. This report outlines the projections for the Pie Creek Tariff group. It should be read in conjunction with the Methodology report.
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Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
2. Asset Information
2.1 Irrigation Infrastructure A summary of Seqwater’s irrigation infrastructure facilities and assets is provided in Table 1 below.
Table 1 Summary of Irrigation Infrastructure
WSS Tariff Group Dams Weirs Off-Stream Other Key Assets Scheme Storage
Mary River Pie Creek NA NA NA Calico Creek Channel, Calico Creek Pipeline, McIntosh Channel, McIntosh Creek Pipeline, Pie Creek Main Channel, Pie Creek Pipeline, Pie Creek Pump Station, Rising Main, Flowmeters
A schematic drawing of the scheme is provided in Appendix A.
2.2 Relevant Asset Information The following existing information was reviewed and where relevant, utilised to develop the renewal projections:
Asset Register;
Annual, 5 Year and Comprehensive Dam Safety Reviews and Assessments;
Draft WSS 20 Year Programme of Work 2008/09 – 2028/29;
2011 Site Safety Assessments;
Extracts from Financial Asset Register;
2009 Asset Valuation – Cardnos;
2010 Asset Valuation – Dams & Weirs – Cardnos; and
Business Case - Irrigation Customer Meters Renewal (SM 12/13 02).
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Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
3. Projections
3.1 Summary A summary of the renewal and refurbishment projections for the period 2013/14 – 2046/47 is provided in Error! Reference source not found.. Further details are provided in Appendix B. It should be noted that all values are in $2012-13.
3.2 Significant Projects A list of projects that come under one of the following categories are outlined in Table 2 below:
Scheduled between 2013/14 and 2016/17 financial years and having a project value greater than the average project value for that period; and 1 A project that has an impact on the annuity of greater than 10% .
Table 2 Significant Projects
Asset Description of Work Timing of Work Project Signif.* Value
Pie Creek Main Replacement of fencing (50% 2013/14 $53k HAV Channel of total as shared with
adjacent landowners)
Pie Creek Pump Electrical refurbishment 2013/14 $186k HAV Station
Water Meters Water Meter Renewal Annually, $192k over HAV
Program commencing 33 years Ref. Footnote 1 2013/14
Notes: *Significance: HAV – Higher than Average Value (for period from 2013/14 to 2016/17) IA – Project was assessed in April 2012 (refer Footnote 1 below) as having an impact on the annuity of greater than 10% (refer Section 3.3 for commentary).
1 The impact on annuity was assessed in April 2012 when version 1 of this report was produced. At that time, the water meter renewal program had not been fully developed and included in the assessment. An updated assessment of impact has not been undertaken in updating this current version 3 of the report.
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Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
Table 3 Summary of Renewal Projections
Parent Asset Expenditure Forecast Each Year ($k) 2013/14 2014/15 2015/16 2016/17 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2026/27 2027/28 2028/29 2029/30 Calico Creek Channel ------204 ------Mcintosh Channel ------63 ------Pie Ck Main Channel 73 ------460 20 ------Pie Creek Pump Station 186 ------Water Flowmeters 20 20 11 11 11 11 11 11 11 3 3 3 3 3 3 3 3 Total 279 20 11 11 11 11 11 11 11 730 23 3 3 3 3 3 3
Parent Asset Expenditure Forecast Each Year ($k) 2030/31 2031/32 2032/33 2033/34 2034/35 2035/36 2036/37 2037/38 2038/39 2039/40 2040/41 2041/42 2042/43 2043/44 2044/45 2045/46 2046/47
Calico Creek Channel ------Mcintosh Channel ------Pie Ck Main Channel - - - 20 ------73 - - - Pie Creek Pump Station - - 149 ------5 Water Flowmeters 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Total 3 3 152 23 3 3 3 3 3 3 3 3 3 76 3 3 8
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Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
3.3 Additional Commentary
For some assets, the available asset data indicated the theoretical asset life was either expired or due to expire within the first four years. Where a site assessment was not able to verify the need to renew an asset within the first four years, the timing of the renewal was updated to occur beyond 2016/17 financial year. This was the case for the following assets:
Calico Creek Channel Pipeline air valves (12) – useful asset life increased based on site visit.
Calico Creek Channel Pipeline scour outlets (7) – useful asset life increased based on site visit.
McIntosh Creek Pipeline air vents, air valve, scour outlet and isolating valves (6) – useful asset life increased based on site visit.
Pie Creek Pipeline air valves (18) - useful asset life increased based on site visit.
Pie Creek Pipeline scour outlets (15) - useful asset life increased based on site visit.
Commentary on projects that have a higher than average project value includes:
Replacement of approximately 4.5km of boundary fence along Pie Creek Main Channel, Cost is 50% of total cost due to cost sharing with adjacent landowners.
Refurbishment of electrical infrastructure at Pie Creek Pump Station including replacement of switchboard and cabling.
The cost estimate for the refurbishment of electrical infrastructure at Pie Creek Pump Station was initially identified as having a greater than 10% impact on annuity. However, detailed cost estimates have been undertaken resulting in a decrease in the cost estimates for this project.
For the forecasted renewal expenditure between 2013/14 and 2016/17, values were compared with Sunwater’s renewals projections which were the basis of the SunWater irrigation prices for 2006/07 to 2010/11. When excluding the water meter upgrade costs which will be excluded from the annuity, it was noted the total value of Seqwater’s renewal forecast was approximately 83% of Sunwaters. The difference is believed to be primarily due to Seqwater projections being based on more up-to-date information.
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Appendix A Water Supply Scheme Schematic
Filename: Seqwater_IrrigRen_Tariff Group Summary_PieCrk_Ver 2_Sept12 While every care is taken to ensure the accuracy of this product, SunWater makes no representations or warranties about its accuracy, reliability, completeness or Map Produced By: suitability for any particular purpose and disclaims all responsibility and all liability SunWater, Engineering Services Document: Z:\data\corporate_data\water_supply_schemes\mary_river\drawings\arcinfo\system-layout-a3.mxd (including without limitation, liability in negligence) for all expenses, losses, damages PMB 5013, Ayr, QLD. 4807 Printed: Friday, August 30 2002 09:23:48 AM (including indirect or consequential damage) and costs which you might incur as a Ph. 47830555, Fax 47836372 © Copyright. SunWater 2002. result of the product being inaccurate or incomplete in any way and for any reason.
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O B G MARYBOROUGH E
O 7180000 EE O S K 7180000 CR K L IX N M E IL 25°30'0"S G L E L C U I G V R R L L E A E C E K R N EE M T D/S Limit Tinana Barrage K C R U/S Limit Mary River Barrage E AMTD 1.6km
E AMTD 59.3km 1373 K Walker Point Pump Station 1380001 B *# 138008A O Tinana Barrage *#)"*# O 1380053 K M 138013B EE P EK #* Copenhagen Pump Station R E K A C R Mary River Barrage *#)" C H E 138013A A E L A R C K L MAAROOM I E M V E C Y R O R TL E E CRE G E EK K K S A N Main Road Pump Station E K DY C E WE E R R T N E E Owanyilla Pump Station )" )" 138005A T R *# C Y GU C E *#*# L L Y K # A K 1380031 1380089 * 1380082 E CR *# B 1380083 R E AR E Teddington Weir R B E 1390 E E K C E E Y L D T *#1380086 TUAN N IG CR A B EE 25°40'0"S A T 25°40'0"S S K TUAN 7160000 Lower Mary Section 7160000 EK RE LOR C O AY T O R A M TIARO U/S Limit Tinana Ck E R A AMTD 15.8km K R EK C Y C E E R B E E B K R E O U E C K AK CR R E Y 138014A Y C S A C EEK R RE N D K *# EK *#Tallegalla Weir IN R E D C E R N A C G W N S RI K P C S LA B K REEK BAUPLE E C E *#138903A A R
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G S R UT A S O C Y A J H 25°50'0"S
25°50'0"S N K Y D E C T R Y R CR E K IN C A E R E EE A R B E K E N EEK E C R A E 7140000 A K C C T 7140000 O Y R E G OAK N E Y O K L 1380070*#*#1380062 C T K A K R S E E EE *# C E 1380071 E 1380063 R K R C 138004A C S Y *# H C D A RU RAINBOW BEACH M R BB N 138004B LIR K TIN CAN BAY A U U E E S N E R K N R C EE A # C R NIN CR C * E N G 1380067 Y K U R E E K D E R N E K K A E K S R E E C *#1400013 E E G R *# 1380 R O C D C 138001A
N K E G E V O E I O T T *#1380042 L A R A E C *#1400011 T N N U T O K M T SAN EE C T DY C R U GUNALDA D 138002C*#138002A 1380065*# 138002B 26°60'0"S 26°60'0"S 1380066
*# 1380064 RRA 1400 CU C R E *# 7120000 E 138006A 7120000 K *# *#140002A C 1400018 O 1380075*# O N 1400003 1400004 138010A *#138009A D *# *# O 1400020 *# 1400014 O *#*# C *# 1400022 1380080*# *# M R 1400021 A E 1400023 KILKIVAN 1380051 R E Y K *# 1400026 R 1400027*# I V *# E 1400028
R 1400032 D/S Limit Deep Ck *#1400033 1400035*# 1380072 AMTD 10.2km *# 1380073 GYMPIE *#1400037 *#138007A 1380068*#1380069 26°10'0"S 26°10'0"S 138020A *#1400012 *# 1380036 *# *#138003A *#1380074 138012A 1380076 *# CEDAR POCKET DAM *# 138003C*#138003B 1380087 *# 1400039 CREEK 138003D SIX Lake IN *# Goomeri Weir M K 7100000 I 7100000 L IN E Cedar K *#1381061 C R R E Pie Creek Section E Pocket IV E R K A Pie Creek Diversion Pump Station S 1381063*# PI O *#)" NB O A N *# 1381064 R 1381062 R BOREEN E N C *# R 1380088 E E B K AR AMBA *# 138109A H 138107B C *#1381099 *# R *#138107A EEK
1381092*# 26°20'0"S 26°20'0"S AMAMOOR 1381089*#1381090 138102C *#*#*#*# POMONA 1362 1381091*# 1381073 138102B 138102A KANDANGA *#SIX MILE CK DAM 138113A TEWANTIN *# M *# I 138103A DDL 138108A *# E CRE NOOSA HEADS E K 7080000 1381094*# 7080000 K COOROY E E *# R 1381072 KA NGA C NDA D 138105B O 1381065 O 138105A N *# A 138105C #*#*#*#* Imbil Weir *# N * 1410034 *#1410030 C 1381 1381038*# 138105D RE B IMBIL E ELL CR K K PEREGIAN BEACH A EE1381093 1410038*# EUMUNDI *# *# *#141009A 1381042# 1381012 138119B*# 138119A #1410035 1381018 *# 1381079 *#*# BORUMBA DAM * 26°30'0"S 26°30'0"S 1430 1381080 *# 138112A K *#138111A EE COOLUM BEACH R Lake Borumba C A B *# 1381098 Y A B *# COOLOOLABIN DAM 141004B# YANDINA *# R 141004A MA Y IV WAPPA DAM *# RO OC H ER
TL *#138101A 141007A 141001A *# T E Y *#*#*#*# 7060000 I POONA DAM 7060000 1430050 AB REE 138101B 1410 L C *# BA K *#1381096 1410029 141001B 1381066*# *# MAROOCHYDORE *# 141002A NAMBOUR 1381097 *# 1381087 *#1381071 1381100 *#1381086 141003A*# * *# *#138104A *#*#1410039 152°10'0"E 152°20'0"E 152°30'0"E *#152°40'0"E*#1381084 138110A 152°50'0"E 141003C 153°60'0"E 153°10'0"E 1381085 *#1381069 *#1381068 420000 440000 460000 480000 500000 520000 NOTES MARY RIVER WATER SUPPLY SCHEME LEGEND 1. Stream Gauging and Water Quality Stations shown do not necessarily belong to SunWater. *# Dam Sub-Basin Boundary SYSTEM LAYOUT ! ! MAP INFORMATION MONTO BUNDABERG *# Weir Major Roads Black tics indicate 20,000m intervals of the Universal Transverse Mercator Grid, Zone 56 (Mapping Grid of Australia), Australian National Spheroid. AUGUST 2002 *# Stream Gauging Station Railway Blue tics indicate Latitude and Longitudinal at 10 minute intervals. ! *# Coordinate System: Geocentric Datum of Australia, MARYBOROUGH Water Quality Station Gully Transverse Mercator projection. )" Pump Station Creek ! River PRELIMINARY PLAN Engineering Services 5 Water Supply Scheme www.sunwater.com.au GYMPIE Channel Channel System WSS C Copyright. SunWater 2002 ! SCALE 1:400,000 (Before Reduction A3) KINGAROY Prepared IDH Checked Approved Pipeline 02 4 8 121620 Urban Area Revision Date km Remarks
LOCALITY PLAN Drawing Number A3-??????
Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47
Appendix B Renewal Projections
Filename: Seqwater_IrrigRen_Tariff Group Summary_PieCrk_Ver 2_Sept12 Parent Asset Expenditure Forecast Each Year ($k) 2013/14 2014/15 2015/16 2016/17 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 2025/26 2026/27 2027/28 2028/29 2029/30 2030/31 2031/32 2032/33 2033/34 2034/35 2035/36 2036/37 2037/38 2038/39 2039/40 2040/41 2041/42 2042/43 2043/44 2044/45 2045/46 2046/47
Calico Creek Channel ‐‐‐‐‐‐‐‐‐204 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Mcintosh Channel ‐‐‐‐‐‐‐‐‐63 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Pie Ck Main Channel 73 ‐‐‐‐‐‐‐‐460 20 ‐‐‐‐‐‐‐‐‐20 ‐‐‐‐‐‐‐‐‐73 ‐‐‐ Pie Creek Pump Station 186 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐149 ‐‐‐‐‐‐‐‐‐‐‐‐‐5 Water Flowmeters 2020111111111111113333333333333333333333333 Total 279201111111111111173023333333331522333333333376338