I have several concerns about this project, as follows:
1. The continual noise from the generators and air-conditioning units. The EPA must monitor this on a regular basis and ensure compliance with standards for residential areas.
2. Diesel generator testing. These will be tested frequently: 162 hours per year. These must occur during business hours to lessen the impact on nearby homes.
3. Diesel deliveries. These must occur during business hours to lessen the impact on nearby homes.
4. Diesel emissions. The generators must be fitted with maximum filtration controls similar to the requirements for vehicles in terms of particulate and odour. The EPA must ensure compliance with standards for residential areas and monitor this on a regular basis.
5. Power. I am concerned that the power required for this facility may cause brown-outs or black-outs for surrounding residents and businesses. I am also concerned that power prices will increase for the surrounding area due to this increased demand on the grid. Endeavour Energy must conduct due diligence before this development goes ahead.
6. Water. I am concerned that the water required for this facility will cause supply issues for surrounding residents and businesses. Sydney Water must conduct due diligence before this development goes ahead.

I am not aware of any WSLHD facilities in the Norwest area.
Therefore direct impacts to WSLHD facilities or services are negligible.

However, the proposal may have broader environmental and infrastructure implications for Western Sydney environment and health of people in our district.
Key considerations include:
• The facility will operate 24-7, resulting in significant ongoing consumption of energy, fuel, water, waste and resources.
• The proposal includes 77 diesel generators with bulk diesel storage on site, which may contribute to local air and noise pollution through routine testing and emergency operation. (For comparison WSLHD has 19 diesel generators in total with 147,500 litres of bulk storage and 20,229 litres of day tank storage. These are all typically tested for 4 hours per month).
• The substantial electricity demand of the data centre may place additional pressure on the local electricity network during the transition to a green energy system
• Data centres typically require significant amounts of water and electricity for intensive 24-7 cooling systems.
• Ongoing hardware replacement may generate considerable electronic waste

WSLHD comments:
• Consider opportunities to minimise reliance on fossil fuel backup generation where possible. Outline risk mitigation measures during times of diesel fuel shortages.
• Outline measures to reduce impacts on the local electricity grid and improve stability as the grid transitions to a green energy system.
• OutIine how the data centre will mitigate climate-related risks from environmental hazards such as increased intensity and frequency of heat waves, drought and storms.
• Clarify whether the project is aiming for carbon neutrality during construction and operation to reduce the impact of pollution and poorer local air quality.
• Describe waste minimisation, recycling and resource recovery strategies for construction and operation phases.

I would like to add a submission on behalf of our properties at Units 122 $ 123 at ATLAS Building 2-8 Brookhollow Avenue NORWEST NSW 2153.
I would like to oppose the proposed development and building a Data centre in the proposed location.
I would like to submit against the proposal and request the project to be relocated elsewhere more suitable for such Datacenter. 
My objections to the subject project are listed below:
(1) It is too risky to have all these equipment's and highly volatile Diesel Storage in the vicinity of residential and light commercial area
(2) There are hotels next door 
(3) We have Childcare in house and Gym etc at Atlas Building , 2-8 Brookhollow Avenue, Norwest NSW 2153, exactly opposite the proposed property at 3 Brookhollow Avenue, Norwest NSW 2153.
(4) WATER REQUIREMENTS:
- Proposed Data Centre will require massive amounts of water to Cool the Network, as well as 18 Diesel Engines to support the Data Centre.
- A Data Centre will be consuming roughly 25 million litres per megawatt (MW) annually for traditional evaporative systems, while closed-loop or air-cooled designs use near-zero water. 
Key Factors Impacting Water Use
- IT Megawatt Capacity: Standard metrics indicate consumption of about 25 to 25.5 million litres of water per MW of IT load per year for typical water-cooled setups. 
- Cooling Technology: Evaporative cooling towers demand continuous makeup water, whereas closed-loop liquid systems or air-cooled chillers drastically drop consumption. 
- Facility Scale & Racks: A multi-storey footprint scaling to tens of megawatts can easily consume tens of millions of litres daily or tens of gigalitres annually if purely water-reliant.
(5) Data Centre will be noisy as well as 24/7 traffic movements will be hazardous to the communities in and arounds 
(6) This project will reduce our properties values in an around the proposed locations 
(7) Traffic at Norwest Boulevard is already a parking lot in peak hours - additional apartments are already loading further to the over crowded roads and the Data Centre's traffic 24/7 will add further congestion to the crowded roads in and around the proposed location.
This type of development may better be in the industrial zone-perhaps near the CIRCA Shopping Centre Bella Vista NSW2153 or Victoria Road Castle Hills NSW 2154 instead of near the residential and light commercial area

I have reviewed the reports and understand that work on the data centre has already commenced. I would therefore like to provide the following comments regarding the impacts of the project on local residents and neighbouring streets.

1. Loss of on-street parking

As part of the data centre upgrade, substantial work appears to be required to upgrade water, electricity and other utility infrastructure. This work has significantly affected the two-hour parking spaces along Brookhollow Avenue that are referenced in the report.

These parking spaces are regularly occupied or blocked by construction vehicles, delivery trucks, contractors’ vehicles and other vehicles associated with the site. As a result, almost all available two-hour parking spaces along Brookhollow Avenue are frequently occupied, with parking demand overflowing into neighbouring residential streets within approximately 400 metres of the Metro station.

2. Contractor parking and impacts on the local area

I may have missed this information, but the reports do not appear to adequately address the impact of construction workers and contractors on parking availability in the surrounding area.

The documents indicate that approximately 150 on-site parking spaces will be available for the project. However, these spaces do not appear to be fully utilised at present. Contractors and other workers associated with the project should be required to use the available on-site parking rather than occupying public parking spaces and neighbouring residential streets.

A clear parking management plan should be implemented and enforced throughout the construction period.

3. Damage to roads and surrounding infrastructure

The large number of construction and delivery trucks entering and leaving the site is placing additional pressure on local roads and may accelerate the deterioration of the road surface.

Although I have observed road-cleaning activities taking place in the evenings, cleaning alone does not address the longer-term damage caused by frequent heavy-vehicle movements. This may lead to premature road deterioration, including cracks, uneven surfaces and potholes.

The project should include regular inspections of the affected roads, together with a commitment to repair any damage caused by construction vehicles and site-related activities.

Overall, the project should provide clearer information about how parking, traffic, road damage and impacts on neighbouring residential streets will be managed throughout the construction period.

The data centre previously existed as a smaller unobtrusive development that could not be seen from the walkway to the lake and that sat back from Brookhollow Avenue. Now it stands out with massive flues jutting out that make me want to run past it from how ugly it is. There is minimal screening from existing tall trees which are straggly eucalypts. It needs a huge wall of evergreens to hide the monstrosity that it is and to absorb some of the emissions that will no doubt stream from this
The noise: for a long time I hear a hum when I put my head on the pillow with my ear to the ground. I have concerns that the hum of 24/7 machinery and plant equipment will add to this.
Discharge from diesel generators and quality of water in nearby water reserves and lake. Impact on surrounding wildlife. Ducks and other aquatic birds use this area as a safe haven. I wouldn't be surprised if in years to come these ducks develop a third eye or other abnormal mutations from environmental pollution. Long term there is no environmental data on the impacts on health from these large data centres on animals but more importantly on people.
Quality on air > fumes and impact on air quality and how this will impact peoples wellbeing and respiratory conditions
Impact on my stress levels. We moved with a young family into a quiet, clean leisurely suburb and the changes and proposed development no longer reflect this. My home is my castle is quickly turning into my home is my jail as these horrific structures are placed in the middle of suburban neighbourhoods.

the data center will create noise that will be above acceptable levels for residents, which we have seen with other developments around the world. the construction alone will create traffic issues that will exacerbate the already congested roundabout near the top of Norwest boulevard. this will not benefit the suburb in any way shape or form.

I object to the proposed expansion of the Brookhollow Avenue Data Centre.

While I understand the importance of digital infrastructure, I do not believe a development of this scale is appropriate so close to established residential homes. The proposed expansion represents a significant intensification of the existing facility and will permanently change the character of the surrounding area. I am concerned about the cumulative impacts of increased noise, visual bulk, diesel generator infrastructure, environmental impacts and the loss of residential amenity.

I do not support the expansion and ask that the application be refused.

While the generators are primarily for backup power, routine testing and emergency operation have the potential to emit pollutants which may affect nearby residents.

I request that the consent authority ensure:

* Air quality modelling assesses realistic worst-case operating and generator testing scenarios.
* Cumulative impacts from the wider data centre campus are considered.
* Independent air quality monitoring is undertaken during generator testing.
* Monitoring results are publicly available.
* Appropriate mitigation and corrective actions are required if air quality limits are exceeded.
* Complaint handling if applicable

I am the owner and resident of an apartment at **40–52 Barina Downs Road, Norwest**, approximately 260 metres from the proposed Stage 2 data centre. I appreciate the opportunity to comment.

However, after reviewing the Noise and Vibration Assessment, I have concerns that it does not provide sufficient certainty that long-term residential amenity will be protected.

1. Identified sensitive receiver

My residence is identified as a sensitive receiver, with compliance required at this location. This confirms nearby residents will be directly affected and require strong protection.

2. Uncertainty in equipment selection

The assessment is based on assumed equipment, as final suppliers have not been confirmed. This means actual noise performance is not yet known.

I request approval be conditioned on demonstrated compliance using final selected equipment before operation.

3. Low-frequency noise not assessed

The report states low-frequency and tonal noise could not be assessed due to missing octave-band data.

This is a key concern, as low-frequency hum from data centres is often the most noticeable and disturbing impact, particularly at night. Compliance with dB(A) limits alone does not prevent this.

I request:

- full octave-band assessment using final equipment;
- specific assessment of low-frequency/tonal noise at nearby residences; and
- enforceable limits where necessary.
4. Reliance on mitigation measures

Compliance depends on multiple mitigation measures (barriers, enclosures, attenuators, etc). These must be mandatory and not alterable without further independent review.

5. Post construction verification

Independent verification is essential. I request conditions requiring:

- independent acoustic commissioning;
- day and night testing, including generator operation;
- measurements at affected residences (including 40–52 Barina Downs Road);
- public release of results.
6. Cumulative impacts

As part of a staged campus, assessment should be using real operational data, not modelling alone.

7. Air pollution assessments
How often
7. Request

I request the consent authority address these uncertainties before approval.

I support responsible development, but expect my home, sleep, and wellbeing to be properly protected through clear and enforceable conditions.

I own an investment property located at 10 Jacqui Cct Norwest. I purchased this property in 2003. It was purchased following a lot of investigation into the surrounding area so it would be appropriate for my husband and my retirement.

The redevelopment of the area surrounding my Jacqui Cct property from the Norwest Precinct Plan has had a huge detrimental impact on the area and our aspirations for our retirement which we planned so long and so hard to achieved.

I have only in the last week been advised of the data centre in Brookhollow Ave and its proposed massive expansion. I am very disappointed with authorities for not giving me any notification concerning the data centre at all. The contentious issue of data centres deserves those impacted being notified directly and not left to those persons to peruse council development applications.

There is a lot of concern about these data centres. They are being developed too quickly and the public have been given little to no information. The news media is already broadcasting concerns and many people we have spoken with are both suspicious and wary.

The location of the data centre in Brookhollow Ave is inappropriate and could even be dangerous. It should be well away from residential areas and should not even be in a quality business park as Norwest. We should be taking no chances with this new technology and take no risks. It should be relocated to an industrial park well away from where we live and play. I can readily see issues of it being a target for any number of enemies both local and foreign. People are also raising concerns of health risks, noise pollution, pollution from backup diesel generators, security etc etc. Norwest just doesn’t need this problem. It already has too many to rectify. Put data centres in more remote areas where they can be secured and monitored. We are getting pushed around by too many foreign multinational companies. Is this going to be the new snowy mountains 2.0 stuck inside of a mountain.