Grange Planning Brain

title: Central Highlands Water Growth Area Water and Sewer Servicing council: ballarat state: vic category: growth-area classification: MAJOR status: in-progress last_compiled: 2026-05-31 source_docs:

  • Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf
  • ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf
  • ballarat.-now-and-into-the-future-enabling-growth-2025-information-pack_0.pdf
  • web-research-L1-central-highlands-water-sewer-ballarat-times.txt
  • web-research-L1-cherry-flat-sewer-pump-aquatec.txt
  • web-research-L1-chw-sewer-halfway-ballarat-times.txt
  • web-research-L1-sewer-north-times-ballarat-times.txt
  • web-research-L1-sewer-southern-trunk-times-ballarat-times.txt
  • web-research-L1-water-sewer-current-service-chw-price-submission.txt
  • web-research-L1-woodmans-chw-ballarat-sewer-build-moorabool-news.txt

Central Highlands Water Growth Area Water and Sewer Servicing

Central Highlands Water servicing is a binding growth-area dependency for Ballarat because the northern and western greenfield fronts cannot convert planned land supply into serviced urban lots without trunk water, trunk sewer, pump-station and treatment-network capacity being delivered in sequence. The available evidence shows two different servicing mechanisms: Ballarat North depends on CHW capital works, developer-delivered trunk assets and unresolved later-stage servicing arrangements, while Ballarat West depends on discrete sewer pump station and trunk pipeline projects that remove near-term barriers in Bonshaw, Winter Valley, Smythes Creek, Delacombe and related estates (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.11-17; Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, pp.1-2).

Background

CHW is the responsible water corporation for Ballarat’s urban water, wastewater, trade waste and recycled water services, and its 2023-28 price submission states that it services approximately 161,000 residents and businesses across the Central Highlands region through 15 water supply systems and 13 wastewater systems (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.4). The same submission identifies accelerated population growth as the central driver of expenditure growth for 2023-28, with CHW moving from a historical 1.7 percent annual connection-growth pattern to recent annual connection growth of 3.1 percent and 2.6 percent, before adopting a 2.2 percent annual forecast for the regulatory period (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.5).

This servicing issue sits inside Ballarat’s broader greenfield sequencing problem. CHW identified five key Ballarat growth zones over a 20-year period, containing about 30,000 lots, at a time when the available serviced-lot supply was estimated at only 7 to 9 years against a 15-year serviceable-lot objective (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.6). The Northern Growth Area was authorised for rezoning to Urban Growth Zone and referred to the Victorian Planning Authority for a Precinct Structure Plan, Development Contributions Plan and planning scheme amendment, with the growth area expected to accommodate up to 6,000 houses and about 15,000 residents (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.117).

Analysis

Servicing Is the Critical Path, Not a Background Utility Issue

The Ballarat North utilities assessment makes clear that the PSP can only be staged around available and planned trunk infrastructure, rather than around land ownership or urban design alone. Stantec states that all service authorities recognise the Ballarat North PSP investigation area as a future development precinct, but that authorities are at different stages of integrating it into asset planning (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.9). The proposed staging therefore uses existing infrastructure, Gillies Road, Midland Highway and a recently constructed trunk sewer along Burrumbeet Creek as the starting logic for the precinct (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.9-10).

For sewer, the mechanism is comparatively direct in the early stages. Existing wastewater in the precinct area is directed to the Ballarat North Water Reclamation Plant at the Western Highway/Gillies Road junction, and CHW has confirmed capacity for connection to an existing 825 mm trunk sewer and a recently constructed 525 mm trunk sewer from the east of the PSP (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.11). The 525 mm main was recently constructed to service part of the precinct and adjacent industrial land, and Stantec states it will also service parts of stages 1, 2 and 3 of the proposed sequencing (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.11).

The first material constraint is timing. Stantec identifies CHW’s PR23 Ballarat Sewer Growth Project - Northern Growth Area as critical and expected to be completed by 2028, aligning with anticipated commencement of development in the Ballarat North PSP investigation area (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.12). This means Ballarat North’s statutory planning pathway and its servicing pathway are coupled: early PSP approval without the PR23 sewer works would not, by itself, make the full precinct serviceable (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.12).

The second constraint is topography. The precinct falls from east to west, allowing gravity sewer servicing for most of stages 1, 2 and 3 once CHW’s PR23 works are complete, but parts of stages 3 and 4 need western-boundary servicing through new sewer assets along Cummins Road connecting into existing CHW infrastructure on Howe Street, Miners Rest (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-13). Stages 4 and 5 remain materially less resolved because Stantec states that their servicing arrangement has not been confirmed and may require new sewer pump station assets or augmentation of existing pump stations (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.13).

The clearest gap in the northern servicing strategy is Miners Rest and the expanded Northern Growth Area. Stantec states that there is currently no servicing strategy for Miners Rest and the expanded Northern Growth Area, and that the illustrated stage 3, 4 and 5 arrangement is indicative and not part of an approved CHW servicing arrangement (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.13). In practical planning terms, this means stage 1 can be treated as comparatively serviceable, stages 2 and 3 depend on delivery and connection detail, and stages 4 and 5 remain conditional on future CHW confirmation (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.11-13).

Water Supply Has a Lot-Count Threshold

The water-supply constraint in Ballarat North is sharper because Stantec records a specific capacity threshold. Existing water assets in and around the development area are primarily DN150 and DN225 mains, and CHW has advised that larger-diameter mains will be needed to support future development (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.14). The precinct is proposed to be supplied from the White Swan Water Treatment Plant and Invermay trunk mains, but the delivery timing of multiple large-scale CHW water assets was not confirmed in the report (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.14).

The binding figure is that, without Invermay trunk main duplication, further water connections within the precinct would be limited to approximately 1,000 to 1,500 lots (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.14). That threshold is important because the Ballarat North PSP core area is projected to accommodate approximately 6,600 lots at an average of 20 dwellings per developable hectare (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.3). On the available figures, the unaugmented water network would support only about 15 to 23 percent of the core-area lot yield before the Invermay duplication becomes a constraint, calculated by comparing 1,000-1,500 lots with the 6,600-lot core-area projection (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.3, 14).

The proposed water servicing pattern therefore requires a trunk main along Gillies Road for stages 1, 2 and part of stage 3, and trunk mains along Cummins Road for the western part of stage 3 and the whole of stages 4 and 5 (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.15-16). Stantec states that detailed hydraulic modelling is still required to size water mains and ensure reliable supply, so the current evidence supports a strategic servicing concept rather than a final construction-ready network (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.16).

Developer-Delivered Trunk Assets and CHW Capital Works Are Interdependent

The Ballarat North model is not purely CHW-funded and not purely developer-funded. Stantec states that proposed sewer trunk assets will be developer delivered, with potential upsizing reimbursements negotiated with CHW (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.14). Stantec also states that water assets shown in the proposed water network will be developer driven, with upsizing reimbursements to be negotiated with CHW, while the precinct remains reliant on the CHW-delivered Invermay trunk main for supply reliability (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.17).

This creates a two-key mechanism. Developers can construct local and trunk extensions within road reservations, but CHW must deliver or confirm upstream capacity where those extensions rely on system-scale assets such as the Invermay trunk main and PR23 sewer growth works (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-17). The result is a staging risk: an individual stage may have internal road and pipe design ready, but lot release remains constrained if the external trunk network or pump-station augmentation is not delivered at the same time (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-17).

The high-level Ballarat North cost estimate indicates the scale of developer-side utility exposure. Across stages 1 to 5, preliminary sewer costs total about 25.13 million, water costs total about 6.67 million and recycled-water costs total about 6.60 million, based on Stantec's stage-by-stage figures (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.63). Stage 5 is the highest sewer-cost stage at about 8.77 million, which is consistent with Stantec’s conclusion that later-stage servicing is less resolved and may require pump-station assets or augmentation (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.13, 63).

Recycled Water and Demand Management Are Being Considered, but Not Yet a Servicing Substitute

CHW has a Class A recycled-water plant at the Ballarat North Water Reclamation Plant, and Stantec records that CHW is investigating Integrated Water Management measures including expanded Class A water use, tanks, passive irrigation of street trees, impervious surfaces and leaky wetlands (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.17). CHW’s stated water-use target for new urban development is 124 litres per person per day (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.17).

The recycled-water network is still described as similar to the water network and developer-led, which means it should be treated as an integrated demand-management option rather than an already-secured substitute for potable trunk capacity (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, p.17). The price submission similarly notes that larger-scale residential recycled water delivered by purple pipe would need pricing at or below potable water tariff, indicating that broader residential recycled-water deployment still requires a tariff and implementation framework (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.98).

Ballarat West Has More Discrete Unlocking Projects

The Ballarat West evidence is less detailed than the Ballarat North utilities assessment, but it identifies specific infrastructure items that remove defined barriers. The Ballarat West Growth Area package comprises seven projects, five by the City of Ballarat and two by CHW, intended to enable or fast-track 8,800 new homes and essential community facilities and infrastructure in the Ballarat West Growth Area (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.1). The same package states that the projects deliver or enable key road, water and sewer infrastructure and remove existing barriers to building more homes in the growth area (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.1).

The highest-value CHW item in that package is a $4.6 million sewer pump station at Schreenans Road, Bonshaw, co-located with a drainage basin (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.2). The same source states that the Bonshaw sewer pump station will support up to 3,500 new homes on 200 hectares in Bonshaw that cannot be built without this infrastructure (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.2). This is a direct serviceability blocker: without the pump station, the 200-hectare Bonshaw catchment is not merely delayed by cost; it is described as unable to be built (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.2).

The second CHW item is a $1.2 million trunk water pipeline to coincide with Greenhalghs Road upgrades in Winter Valley (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.2). The strategic logic is co-delivery: the package states that a trunk water pipeline on Greenhalghs Road can be delivered more economically if it is built before, or in coordination with, the civil road upgrade (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.1). This creates a construction-sequencing dependency between road works and water servicing, where separating the programs would likely increase disruption and cost (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, pp.1-2).

The Ballarat Now and Into the Future information pack repeats the same Ballarat West package and places it inside a larger enabling-growth program, including the $13.27 million project cost for the seven-project Ballarat West package (Source: ballarat.-now-and-into-the-future-enabling-growth-2025-information-pack_0.pdf, p.15). It also repeats that Bonshaw’s pump station supports up to 3,500 homes on 200 hectares, and that water and road upgrades at Greenhalghs Road will serve an immediate area containing schools, a local activity centre, public open space and community facilities (Source: ballarat.-now-and-into-the-future-enabling-growth-2025-information-pack_0.pdf, p.16).

Southern Trunk Sewer Extends the Ballarat West Wastewater Spine

The web evidence shows CHW also progressing the Ballarat Southern Trunk Sewer Project in Ballarat’s west. One Ballarat Times article states that the project began in Smythes Creek, cost $3 million, and involved nearly two kilometres of glass-reinforced polymer trunk sewer pipeline (Source: web-research-L1-central-highlands-water-sewer-ballarat-times.txt). The same article states that the pipe would be built near Pinnacle and Cherryside Estate and connect to the Cherry Flat Road sewer pump station, which was also under construction (Source: web-research-L1-central-highlands-water-sewer-ballarat-times.txt).

A later Ballarat Times article states that the Ballarat Southern Trunk Sewer Project had reached the halfway point, remained on schedule, and would support further land development for residential housing in Smythes Creek, Delacombe, Bonshaw and Winter Valley within the Ballarat West Growth Area (Source: web-research-L1-sewer-southern-trunk-times-ballarat-times.txt; Source: web-research-L1-chw-sewer-halfway-ballarat-times.txt). The same article states that the pipeline assists Pinnacle and Cherryside Estates by connecting to the Cherry Flat Road Sewer Pump Station, so the southern trunk sewer should be read as part of a pump-station-and-trunk-main system rather than as an isolated pipe project (Source: web-research-L1-sewer-southern-trunk-times-ballarat-times.txt; Source: web-research-L1-chw-sewer-halfway-ballarat-times.txt).

The Cherry Flat Road pump-station evidence is thinner because the Aquatec source is a project page, not a planning report. It confirms that Aquatec partnered with Spiire to design, manufacture and install a wastewater system as part of the Cherry Flat Road Sewer Pump Station, and it identifies the project as a sewage pumping station and storage vessel at Cherry Flat Road, Ballarat (Source: web-research-L1-cherry-flat-sewer-pump-aquatec.txt). This supports the existence of a pump-station project at the same node identified in the Ballarat Times trunk sewer coverage, but the extracted Aquatec text does not provide service catchment, flow, storage or commissioning data (Source: web-research-L1-cherry-flat-sewer-pump-aquatec.txt).

Pricing Reform Changes the Cost Signal for New Growth Areas

CHW’s price submission is important because it explains how growth infrastructure costs are intended to be recovered across new and existing customers. CHW proposed increasing New Customer Contributions from 1,504 per lot to a maximum of 4,000 for water and 4,000 for wastewater, phased in over the 2023-28 regulatory period (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.4). The submission states that wastewater NCCs were not previously charged and would be introduced at up to 4,000 per lot for new growth areas (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.100).

The mechanism is an Average Incremental Cost model. CHW states that the revised NCC approach includes only capital projects where growth is the predominant driver, includes 100 percent of costs for projects that exist only because of new growth, and allocates shared growth-driven projects by the proportion of new and existing connections over a 20-year period (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.106). The model includes $389 million of essential capital investment triggered by growth across the water and wastewater 20-year NCC calculations, and CHW expects 36 percent of properties in the region over that period to be new connections (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.106).

The proposed NCC table distinguishes new growth zones from existing growth zones and infill. For new growth zones, water and wastewater NCCs each phase from 3,000 in 2023-24 to 4,121.20 in 2027-28, while existing growth zones and infill phase from 1,300 to 2,626 for each service over the same period (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.108). The new growth zone note includes Ballarat North West Growth Area and Ballarat Northern Growth Area, while the existing growth-zone note includes Ballarat West Urban Growth Area and Ballarat West Employment Zone (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, pp.108-109).

This matters for planning because it creates a locational cost signal between established growth areas and newer growth fronts. Ballarat North and North West are treated as new growth zones in the NCC schedule, while Ballarat West is treated as an existing growth zone, so the same dwelling outcome can carry different water and wastewater contribution settings depending on which growth front is being serviced (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, pp.108-109).

Cross-Boundary and Adjacent-Council Signals

The Moorabool News source shows that CHW’s sewerage program extends beyond City of Ballarat growth fronts. It reports a 15 million Stage 2 Ballarat Sewer Build program scheduled to commence in January 2023, while noting that preliminary investigations were underway into potential sewerage for Wallace and Bungaree in Moorabool Shire (Source: web-research-L1-woodmans-chw-ballarat-sewer-build-moorabool-news.txt). The same article states that sewerage for Wallace and Bungaree was estimated at 10 million, with Council investing 1 million and other entities including CHW hoped to provide the remaining 9 million (Source: web-research-L1-woodmans-chw-ballarat-sewer-build-moorabool-news.txt).

The cross-jurisdictional implication is that CHW’s regional capital program must balance Ballarat’s northern and western urban growth fronts with smaller-town sewerage investigations in adjacent municipalities. The available corpus does not show whether the Wallace and Bungaree investigations compete with, complement, or sit outside the Ballarat growth-area capital pathway, so the relationship should be treated as a monitoring issue rather than a proven constraint on Ballarat projects (Source: web-research-L1-woodmans-chw-ballarat-sewer-build-moorabool-news.txt; Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, pp.5-6).

Current Status

Ballarat North servicing is in an in-progress planning and capital-delivery phase. Stantec’s March 2025 utilities assessment identifies the core PSP area as approximately 832 hectares, with about 6,600 lots projected in the core area and 2,600 to 3,100 additional homes possible in the expanded area through a separate strategic planning process (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.3, 5). The sewer pathway depends on CHW’s PR23 Ballarat Sewer Growth Project - Northern Growth Area being completed by 2028, and later stages remain subject to unresolved CHW servicing confirmation (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-13).

Ballarat West has more clearly identified enabling projects, including the 4.6 million Bonshaw sewer pump station and the 1.2 million Greenhalghs Road trunk water pipeline (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.2). The Southern Trunk Sewer Project was reported as underway in Smythes Creek and later at 50 percent installation, with the pipeline connecting to the Cherry Flat Road Sewer Pump Station and supporting development in Smythes Creek, Delacombe, Bonshaw and Winter Valley (Source: web-research-L1-central-highlands-water-sewer-ballarat-times.txt; Source: web-research-L1-sewer-southern-trunk-times-ballarat-times.txt).

Dependencies

  • Blocks: Unresolved CHW sewer, water and pump-station capacity blocks full Ballarat North lot delivery beyond the immediately serviceable early stages, and absence of the Bonshaw sewer pump station blocks up to 3,500 homes on 200 hectares in Bonshaw (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-17; Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, p.2).
  • Blocked by: Ballarat North is blocked by the 2028 PR23 sewer growth project, Invermay trunk main duplication, hydraulic modelling, final connection locations, and an approved servicing strategy for Miners Rest and the expanded Northern Growth Area (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-17).
  • Informed by: The analysis is informed by Stantec’s March 2025 Ballarat North utilities assessment, CHW’s 2023-28 price submission, City of Ballarat’s 2025 enabling-growth material, and local reporting on trunk sewer and pump-station delivery (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf; Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt; Source: ballarat.-now-and-into-the-future-enabling-growth-2025-information-pack_0.pdf; Source: web-research-L1-central-highlands-water-sewer-ballarat-times.txt).
  • Implements: The servicing program implements Ballarat’s staged greenfield-growth direction, including the Northern Growth Area PSP process and the Ballarat West Growth Area housing-enabling infrastructure package (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.117; Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, pp.1-2).
  • Conflicts with: The corpus does not identify a direct policy conflict, but it does show a funding and timing tension between rapid activation of multiple growth fronts and CHW’s need to stage capital works, NCC recovery and developer-delivered trunk assets (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, pp.5-6, 100-108; Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-17).

CHW’s service territory extends across the Central Highlands region, with Ballarat, Maryborough and Daylesford accounting for about 95 percent of serviced connections (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.4). The price submission identifies Golden Plains’ Cambrian Hill Growth Area and Moorabool’s North West Ballan Growth Area in the new-growth-zone context, which means CHW’s growth-capital model is regional rather than confined to City of Ballarat (Source: web-research-L1-water-sewer-current-service-chw-price-submission.txt, p.109). Moorabool reporting on Wallace and Bungaree sewerage investigations reinforces that CHW’s forward sewerage decisions can affect adjacent-council settlements as well as Ballarat’s urban growth fronts (Source: web-research-L1-woodmans-chw-ballarat-sewer-build-moorabool-news.txt).

Gaps in This Analysis

The Ballarat North source is a strong utilities assessment, but the corpus does not include the final PSP, final Development Contributions Plan, CHW’s detailed PR23 project business cases, hydraulic modelling, final sewer connection approvals, or a final servicing strategy for Miners Rest and the expanded Northern Growth Area (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.12-17). This limits the ability to state definitive per-lot servicing costs, confirmed delivery triggers, final land-take requirements for utility corridors, or binding conditions for stages 4 and 5 (Source: Ballarat-North-PSP-Utilities-Assessment-Report-Stantec-March-2025.pdf, pp.13, 63).

The Ballarat West material identifies project costs and headline housing enablement, but it does not provide catchment hydraulics, pump-station capacity, commissioning dates, DCP recovery treatment, or the detailed relationship between the Southern Trunk Sewer, Cherry Flat Road Sewer Pump Station and Bonshaw pump-station catchments (Source: ballarat-west-growth-area-housing-and-growth-enabling-infrastructure-bnif.pdf, pp.1-2; Source: web-research-L1-central-highlands-water-sewer-ballarat-times.txt; Source: web-research-L1-cherry-flat-sewer-pump-aquatec.txt). The web sources are useful delivery signals but are not substitutes for CHW capital-works schedules, as-constructed drawings, or statutory development-contribution documentation (Source: web-research-L1-sewer-southern-trunk-times-ballarat-times.txt; Source: web-research-L1-chw-sewer-halfway-ballarat-times.txt).

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