DRAFT LTP book.indb - Hurunui District Council

www.hurunui.govt.nz5. Waipara6. Hanmer Springs7. Hawarden-WaikariRestricted Water Supplies (Rural)8. Ashley9. Amuri Plains10. Balmoral11. Waiau Rural12. Cheviot13. HurunuiTable 2 shows the water network valuations as at 30 June 2011..Maintenance and Operating ImplicationsWe intend to retain the ownership of all public water supplyassets on behalf of the communities that these facilities serve.Asset management, basic design work, contract documentation,tendering, record keeping, operation and routine repair andmaintenance are to be carried out by our staff. Larger budgetcapital works are likely to be let as contracts. Larger repairs,work across state highways or arterial roads and someemergency works may also be contracted to preferred oravailable contractors. External consultants will be engaged onlyfor specialised tasks, where we do not have those skills in-house.Information relating to the overall condition and performance ofthe assets that make up the water supply networks in the districtare in our Asset Management Plans. Age and condition have aninfl uence on the maintenance of assets, but do not necessarilyimpact on output and/or outcome performance. Breakages canoccur due to nearby earthworks, natural emergency events,pressure waves (from pumps) or illegal connections that caninfl uence demand for water. Low performance can also arisefrom an increase in demand from high growth, changes intechnology and materials, and changing expectations from thecommunity. The Water Asset Management Plan will be reviewedand updated through 2013.The Demand Management Strategy will look at signifi cantways to improve forecasting, planning and upgrading of waterinfrastructure into the future, thus addressing the national issueof increasing competition for access to water. The challengesof future growth, development and land-use changes (bothdomestic and industrial) within the district and the subsequentneed to replace or renew supply infrastructure to meet theseneeds, will drive us to reassess how we currently do our businessand to start thinking smarter and wiser. Water supply effi ciencyis a core directive to ensuring that we use what we currentlyhave more effectively, before expensive upgrade works areconsidered. We have a responsibility to help educate the publicto reduce water consumption and encourage other methodsto conserve water (such as grey water systems in new homes).Most of the network reticulation is in good repair and operatingunder a policy of renewal when necessary, thus reticulation shouldremain serviceable indefi nitely. Pumps, controls, telemetry (datasent back to the offi ce by radio) and water treatment devicesare repaired as the need arises and are replaced as the benefi tsof repair are outweighed by replacement – usually every 12 – 20years. Reservoirs, weirs, bores, and ponds are maintained on anon-going basis. The asset ages of on-demand water networks isquite recent, with the earliest network installations dating backto 1955 (in Amberley).Table 2: Water Network ValuationsNetwork Replacement CostDepreciatedValuesAmberley $2,815,297.48 $1,111,538.26Amuri Plains $1,290,870.87 $800,292.87Ashley $11,993,509.66 $8,349,455.36Balmoral $1,312,486.28 $775,449.94Blythe $401,350.63 $223,933.83Cheviot $3,255,002.95 $1,513,348.23Culverden $1,011,591.28 $380,681.82Hanmer Springs $5,817,078.18 $3,645,959.74Hawarden-Waikari $2,485,771.81 $878,670.62Hurunui 1 $5,124,151.09 $2,321,822.64Kaiwara $1,662,809.98 $954,166.69Leithfi eld Beach $490,747.49 $275,692.71Lower Waitohi $1,677,400.52 $814,691.71Parnassus $1,106,936.83 $603,963.87Peaks $273,119.55 $160,382.43Upper Waitohi $2,279,526.49 $862,083.11Waiau RWS $2,292,416.66 $1,100,388.11Waiau Township $712,104.90 $200,642.77Waipara $708,485.77 $254,815.72Assumptions and RisksUpgrading of water systems, new treatment plants and fi ltrationsystems to meet Drinking-Water Standards New Zealand, haveall assumed fi nancial subsidies from Central Government inthe past in order for the work to affordably proceed. However,reduced national subsidy funding (less money available for all)and the ever-increasing limiting eligibility criteria (specifi callythe deprivation index to address more fi nancially needycommunities) have put council in a position that requiresreconsideration of this hopeful approach. We will have tofund the full cost from their perceived deep pockets, placingmore fi nancial burden upon our communities to meet theselegislatively imposed standards.We will continue to make application for this subsidy yearlyfrom the Ministry of Health, wherever we see opportunitywithin the constraints of the set and strict criteria applicable toqualify for an adjudicated consideration.Effort is continually on-going to establish the useful lifespan ofunderground and fi xed water supply assets. Most of the urbanreticulation is AC pipe (older community areas prior to early1970’s) and PVC for new sub-divisions and replacement sectionsof the current infrastructure.Pipe material has performed satisfactorily since installation,but renewal is anticipated for much of this over the next 2076