| # | Question | T5's answer | Question answered? | Comment | Our response | |||||||||||||||||||||||||||||||||||||||
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| 1. Water | ||||||||||||||||||||||||||||||||||||||||||||
| 1 | What is the total fill volume in gallons for all buildings combined at full build-out, and how many separate fill events happen across the construction period? | Only Building 1 and Building 2 have been designed to date. Building 1 anticipates a total first fill (including fill and flush operations) of 2,750,000 gallons, or less than three modern Olympic-sized swimming pools. Building 2 anticipates a total first fill (including fill and flush operations) of 1,250,000 gallons. Both calculations have been approved by the Central Lake County Water Authority (CLCWA). | Partial | Gives first-fill volumes for Buildings 1 and 2 (4,000,000 gallons combined). Gives neither the full build-out total nor the number of fill events. | Two buildings need 4,000,000 gallons to fill, and only two of the campus's planned 11 buildings (Village FAQ) are designed.
The question asked for the total at full build-out and the number of fill events. Neither is given.
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| 2 | On the hottest day of the year, does the cooling system use any water beyond the sealed loop, and if so, how many gallons on average? | Once the fill and flush operations are completed, no additional water is utilized by either building other than for break room and restrooms for the building occupants, and minimal water for added humidity in the data halls for static electricity avoidance. For Building 1, these uses total 1,150 GPD for domestic water (breakroom and restrooms), and 1,525 GPD for humidity make-up water (total average daily use of 2,675 GPD). Building 2 totals are 1,100 GPD for domestic use and 1,050 for humidity make-up (total average daily use of 2,150 GPD). Both values are trending below the Village's conservative 2,500–3,500 gallons-per-day, per-building planning estimate. For comparison, a typical family of four utilizes 300 GPD so Building 1 would utilize the equivalent of 9 homes, and Building 2 would utilize the equivalent of 7 homes. No other water is used in the cooling system as it is a closed-loop, indirect chilled-water cooling architecture with dry (air-cooled) heat rejection. Once filled, it is not emptied. | Partial | Answers the yes/no part: no cooling water beyond the loop, plus humidity make-up water for the data halls. The figures are annual daily averages, not hottest-day figures. | The question was about the hottest day of the year. The figures given are a "total average daily use" for the year, not hottest-day use. What is the peak-day figure?
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| 3 | The Village FAQ describes the Development’s 50,000 gallons per day water usage as being for “normal office purposes (breakrooms/restrooms/etc.)” only. Where did that figure come from and does it account for anything else? | 50,000 GPD is a conservative estimate that has been reviewed by the CLCWA for all possible buildings. The site is trending below that total. | Partial | Says the figure is a conservative estimate reviewed by CLCWA for “all possible buildings.” Doesn’t say who calculated it, on what assumptions, or whether it covers more than office uses. | The answer doesn't say where the 50,000 figure came from, or how many buildings it assumes. "Trending below" means little with 2 of 11
buildings designed. And T5's own figures above include humidity make-up water, which is not one of the "normal office purposes" the Village FAQ
described. | |||||||||||||||||||||||||||||||||||||||
| 4 | How often does the closed loop need to be drained, and where does the drained water go? | The loop is not drained once it is filled. | Yes | Answers both parts directly: the loop is never drained, so there is no drained water to dispose of. Whether that holds over decades of repairs is a separate question (see our response). | A closed loop that is never drained over decades is a design goal, not a maintenance plan. Pumps, valves, coils and chillers get repaired and replaced. When a section has to be opened, where does that fluid go, and what is in it? T5 says it contains no PFAS, and the Village’s September 2026 FAQ mailer says heat tape, not glycol, will protect the exterior chilled-water piping from freezing. What corrosion inhibitors or biocides does the loop contain? | |||||||||||||||||||||||||||||||||||||||
| 5 | What discharges, if any, are permitted or planned from the cooling and stormwater systems, and what groundwater monitoring plan will be in place to detect any impact? | Minimal water may spill as a server is swapped out if the internal water tubes need to be disconnected. Typically, this is so minimal that it is wiped dry with a rag. | Partial | Covers only incidental drips during server swaps. Nothing on permitted stormwater discharges or a groundwater monitoring plan. | The question asked about permitted discharges and a groundwater monitoring plan. The answer covers only drips during a server swap. There is nothing on stormwater discharge, a major loop failure or groundwater monitoring. In July 2026 the Village denied a public-records request for the project's cooling and containment plans, citing litigation. | |||||||||||||||||||||||||||||||||||||||
| 6 | What stormwater and cooling-system runoff controls are planned for the site (containment, treatment, and monitoring)? | Stormwater controls are designed to code requirements, reviewed by the appropriate local authorities having jurisdiction, and maintained according to best practices and jurisdictional standards. | No | “Designed to code” names no containment, treatment or monitoring measure, which is what the question asked for. | "Designed to code" and "reviewed by the appropriate local authorities" names no authority, no permit and no containment capacity, treatment or monitoring. Which agency issued the stormwater permit, and under what permit number? | |||||||||||||||||||||||||||||||||||||||
| 7 | How does the facility monitor for leakage from the loop? | Extensive leak detection (connected to the master control and alarm system) and spill containment is in place throughout each data center wherever chilled water pipes are present. | Yes | Describes the method: leak detection tied to the control and alarm system, plus spill containment wherever chilled-water pipes run. Coverage is stated only for the inside of each data center. | The answer covers leak detection "throughout each data center." What about chilled-water piping that runs outdoors to the dry coolers?
Who is notified when the alarm trips, and is any leak reported to the Village or to residents? | |||||||||||||||||||||||||||||||||||||||
| 8 | Will the campus use any water besides the municipal supply? | No. All water will come from the CLCWA. Additionally, no wells will be drilled for the project. | Yes | Direct answer: all water comes from CLCWA, and no wells will be drilled. | Noted. Then the numbers that matter are the full build-out fill volume and the peak daily draw from the Central Lake County Joint Action Water Agency. Neither is given. | |||||||||||||||||||||||||||||||||||||||
| 9 | During drought conditions, when Grayslake residents are asked to conserve water, is T5 restricted too? | The data center campus is a business customer of CLCWA and is subject to the same requirements as other businesses. | Partial | Says the campus faces “the same requirements as other businesses.” Doesn’t say whether conservation requests made to residents apply to businesses at all. | "The same requirements as other businesses" doesn't say what those requirements are. Could a multi-million-gallon fill be scheduled during a drought restriction? Is there any cap on the campus's draw? | |||||||||||||||||||||||||||||||||||||||
| 10 | While a closed loop cooling system drastically reduces on site local water consumption, does it increase indirect water usage from power generation? | No. The type of cooling system used by T5 does not change the facility’s indirect water usage. That is because regardless of what cooling technology is used, Building 1 will only draw 300 MW (total utility load), and Building 2 will only draw 150 MW (total utility load). The type of cooling technology used in each building does not impact the total power draw. The overall efficiency of each building impacts the amount of IT compute capacity that is leasable in each building, but it has no impact on how much power each building ultimately draws from PJM/ComEd. PJM utilizes the same amount of water for power generation regardless of the cooling technology used at each building. | Partial | Gives a direct “No,” but the reason addresses whether the choice of cooling changes indirect water use, not how much water is used to generate the campus’s electricity. The claim that power draw is fixed regardless of cooling type is T5’s, not supported with data. | The question asked about water used to generate the campus's electricity. The answer is about whether the choice of cooling changes it,
which is an answer to a different question. Power plants use water in proportion to the electricity they produce. The answer confirms the first two buildings
alone draw 450 MW. At full load around the clock that is about 3.9 million megawatt-hours a year (450 × 8,760).
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| 2. Electricity | ||||||||||||||||||||||||||||||||||||||||||||
| 11 | What ComEd/PJM grid upgrades are required to accommodate T5? At what cost? | T5 is funding all costs of the 345 kV ComEd substation directly related to the campus and will additionally fund all downstream distribution of the 35kv distribution required for the development. | Partial | Names the upgrades T5 will fund: the 345 kV substation and downstream distribution. Gives no cost and says nothing about off-site transmission or PJM network upgrades. | The question asked "At what cost?" No dollar figure is given. The answer covers the on-site substation and the campus's own distribution.
It says nothing about transmission or PJM network upgrades beyond the site, which are the costs most likely to be spread across ratepayers.
(The answer also gives the distribution voltage as "35kv"; the generator answer says 34.5 kV.) | |||||||||||||||||||||||||||||||||||||||
| 12 | T5 says in advertisements that data centers are “billed in their own rate class”. Is that rate higher than, lower than, or the same as consumer rates? | Per Illinois Commerce Commission standards, the large-user rate class is designed to capture all costs associated with large power users. By providing a large, stable load, ComEd and PJM are also able to spread their fixed costs across greater kWh, ultimately lowering their costs for all customers by spreading them over a greater pool of users. | No | Doesn’t say whether the rate is higher than, lower than or the same as residential rates. | The question asked whether the rate is higher than, lower than or the same as residential rates. The answer doesn't say. "Ultimately
lowering their costs for all customers" is offered with no figures and no source. | |||||||||||||||||||||||||||||||||||||||
| 13 | ComEd typically recovers infrastructure costs from its ratepayers. On what basis is the claim of a $0 increase for residents made? What does the campus pay toward regional capacity and transmission costs? | Per Illinois law, ComEd and its generation partner PJM are legally required to capture any and all costs associated with larger user power contracts. Additional direct payments will be made by T5 for all physical improvements directly attributable to the campus (e.g. dedicated substation, downstream distribution, etc.). | Partial | Gives a basis for the $0 claim: Illinois law requires cost capture. Doesn’t say what the campus pays toward regional capacity and transmission. | If Illinois law already required ComEd and PJM to capture "any and all costs" from large users, the Village would have no reason to support the
Illinois POWER Act to make data centers pay "beyond current state laws." The question also asked what the campus pays toward regional capacity
and transmission. The answer lists only on-site improvements. | |||||||||||||||||||||||||||||||||||||||
| 14 | Is T5’s statement that they are “committed to paying their full share” written into any legally binding agreement? | The obligations to directly pay for all dedicated physical infrastructure improvements are contained within the electricity connection obligations with ComEd. PJM’s large user rate class details are regulated by the Illinois Commerce Commission and Illinois State Law. All applicable requirements are equally binding for T5 as the developer and its clients. | Partial | Places the infrastructure payments in T5’s ComEd connection obligations. Doesn’t say whether the broader “full share” commitment is in any agreement; it points only to general regulation. | Only the dedicated physical infrastructure (the substation and lines to the campus) is in T5's ComEd obligations. Everything else is "regulated by the Illinois Commerce Commission and Illinois State Law," the same rules that apply to every customer. So "committed to paying their full share" is not written into any agreement specific to T5. | |||||||||||||||||||||||||||||||||||||||
| 3. Sound | ||||||||||||||||||||||||||||||||||||||||||||
| 15 | Has a noise study been conducted, and is it publicly available? | An acoustical consultant analyzed existing sound levels (31.5, 63, 125, 250, 500, 1000, 2000, 4000, and 8000 Hz frequency bands) in the vicinity of the project and modeled projected sound levels for all sources of noise from the project at several receptor sites, including at the property lines of residential developments in the vicinity. Acoustical energy is governed by the Illinois Pollution Control Board (PCB). IL PCB Maximum Permissible Sound Levels (Class B to Class A) establishes maximum sound levels, expressed as A-weighted levels for continuous sound, as follows:
To ensure compatibility with residential uses in the vicinity, this project is designed to perform (with the application of building orientation and geometries, landscaped berming, acoustic screen walls, supplemental sound controls such as chiller discharge silencers, inlet acoustic louvers, compressor wraps, and generator acoustic enclosures) in accordance with the lower “night time” limits of the Noise Ordinance. During generator testing (limited to 5-minutes weekly, 30-minutes monthly, and one 4-hour annual test, all conducted during day-time hours), the project will still outperform the Ordinance thresholds. For comparison, the 44 dBA noise level to which the project is designed is equivalent to the following:
These measurements are calculated as an outside noise at the property line of any receiving property and will be further diminished with additional distance from the sound source and building enclosures. Finally, prior to receiving a use permit, post-construction sound measurements must be performed to confirm the application of all design assumptions and resultant performance in accordance with the standards noted above. | Partial | Confirms a study was done and describes its scope. Doesn’t say whether it is publicly available. | The only modeled result T5 gives is a single A-weighted number, 44 dBA. A-weighting discounts low frequencies heavily (by about 26 dB
at 63 Hz), so a low hum can be plainly audible while the dBA figure looks quiet. No C-weighted figure and no band-by-band results are disclosed.
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| 16 | T5 has claimed the development’s operations will often be “quieter than traffic on Peterson Road.” Under what operating conditions is the facility louder than the stated comparison? What is T5 using as its reference decibel level for traffic on Peterson Road? | 44 dBA is the nighttime residential noise limit many municipalities set for property lines near industrial or data center sites. It is a level that regulators treat as “barely perceptible over ambient” existing sound levels rather than a nuisance threshold. These measurements are calculated as an outside noise at the property line of a receiving property and will be further diminished with additional distance from the source and building enclosures. | No | Gives no reference level for Peterson Road traffic and no conditions under which the campus would be louder. | Neither part of the question is answered. There is no reference level for Peterson Road traffic, and no description of when the campus would be louder than it. 44 dBA is a design target, not a traffic measurement. Whether it is "barely perceptible over ambient" depends on how quiet the area is at night now. T5's consultant measured existing levels. Publish them. | |||||||||||||||||||||||||||||||||||||||
| 4. Generators & Batteries | ||||||||||||||||||||||||||||||||||||||||||||
| 17 | How many generators will this development require for daily operations? | Building 1 will have 6 generators, and Building 2 will have 5 generators. Unlike other data center campuses, we will not be using generators or turbines on site for primary power production (ongoing use). These emergency generators exist solely to keep critical systems running in the rare event of a grid outage. Because they exist only for emergencies, the generators sit idle the vast majority of the time and will be tested for less than one hour each month during daytime hours. Those operations are designed to fall well within the Illinois EPA's noise and emissions standards. One of the reasons the Cornerstone Development was sited in the Cornerstone Industrial Park was the robust nature of the electrical distribution infrastructure owned by ComEd. Redundant, 345 kV high voltage power lines traverse the site providing distribution level transmission at the site without need for additional off-site power rights-of-way. Each building has its own set of redundant 34.5 kV feeds from the ComEd substation, providing resiliency at the distribution level. The historical reliability performance of these robust power lines, when coupled with the design of the data center distribution feeds and the data center itself, exceeds 99.999% reliability; meaning grid power may not be available during any given year for no more than 5-minutes and 16-seconds per year. | Partial | Gives generator counts (6 and 5) for Buildings 1 and 2 only. The question asked about the whole development. | Six generators for a building that draws 300 MW works out to about 50 MW each; five for 150 MW is 30 MW each. Standby diesel sets
sold to data centers are typically around 2.5 to 3.25 MW (for example,
2,480 kW MTU sets).
What is each generator's rating, and what share of the load do they carry?
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| 18 | There are statutory limits on how often diesel backup may be tested. What is the planned testing schedule, and what are the resulting annual emissions? | 5-minutes weekly, 30-minutes monthly, and one 4-hour annual test, all conducted during day-time hours. | Partial | Gives the testing schedule. Gives no annual emissions figure. | The question asked for the resulting annual emissions. None are given. The schedule itself works out to about 14 hours per generator per
year (260 + 360 + 240 minutes), and close to 5 hours in the month with the annual test. That contradicts "less than one hour each month."
Federal rules place no hour limit on emergency operation, so this schedule is a floor, not a ceiling. | |||||||||||||||||||||||||||||||||||||||
| 19 | What air permits are required for the generator fleet, and have they been applied for? | As part of the development of the campus, T5 has already obtained a permit to construct emission source(s) consisting of diesel-powered emergency generators not constituting a new major source or major modification pursuant to 35 Ill. Adm. Code Part 203, Major Source Construction and Modification of Title 1 of the Clean Air Act. | Partial | Names one permit already obtained: a construction permit for emergency generators as a non-major source. Doesn’t say whether any other permits are required or which buildings this one covers. | The permit treats the generators as not a "new major source." For which buildings? As more buildings and generators are added, are emissions counted for the whole campus, or permitted building by building? What is the permit number? | |||||||||||||||||||||||||||||||||||||||
| 20 | Backing up 1.2 GW with 4 MW battery units implies a very large Battery Energy Storage System. How many units will be installed, of what chemistry, and at what total capacity? | There are no BESS systems designed for Building 1 or Building 2. The design has additionally been reviewed by Grayslake Fire department for compliance with their standard operating procedures. | Partial | Says no BESS is designed for Buildings 1 or 2, which answers the count for those buildings (zero). Silent on later buildings and on UPS batteries. | "No BESS" answers a narrower question. The same page lists a "UPS Batteries Analysis" among the studies, and a data center's UPS is itself a battery system. What chemistry, how many megawatt-hours per building, and what fire-suppression plan did the fire department review? The answer also covers only Buildings 1 and 2. | |||||||||||||||||||||||||||||||||||||||
| 5. Jobs | ||||||||||||||||||||||||||||||||||||||||||||
| 21 | Is “up to 1,500” a number added each year, or the total across all years combined? | The campus will be built out over 7 to 10 years. Each building takes approximately 2-years to build, and creates 800 to 1,200 construction jobs over the course of its construction. Once completed, 24x7x365 (3-shifts / day) security, physical infrastructure, network technicians, and customer employees will manage and maintain the physical and compute environments of the facility. This is between 100-150 people per building earning average salaries at or above the area’s median income. | Partial | Never mentions the 1,500 figure. Gives per-building totals (800–1,200 construction jobs over about two years), so whether 1,500 is per year or cumulative is left to inference. | This confirms that "up to 1,500" describes temporary construction work, which the home page still headlines as "new jobs in the community."
800 to 1,200 per building over about two years doesn't say how many people are on site in a given year. The permanent figure, 100–150 per
building, counts "customer employees," who don't work for T5. How many permanent T5 jobs, and how many filled by Lake County residents? An
"average" salary at or above the median can hide a wide range. | |||||||||||||||||||||||||||||||||||||||
| 22 | How many of those construction jobs are union and how many non-union? | As part of the construction of the project, T5 and its contractors have already entered into and support project agreements with Labor and will continue to do so throughout the development of the campus. | No | Mentions project labor agreements but gives no union or non-union numbers. | How many union jobs is that? | |||||||||||||||||||||||||||||||||||||||
| 6. Revenue | ||||||||||||||||||||||||||||||||||||||||||||
| 23 | What abatements have been granted to T5 or applied for? | No incentives were granted by the Village of Grayslake, and property taxes will be paid in full when due with no abatement as with any other business in the Village. As a qualifying data center, the campus is eligible for the statewide Illinois Data Center Investment Program (20 ILCS 605/605-1025), an as-of-right state exemption on equipment sales/use tax available to any qualifying facility in Illinois. | Partial | States there are no Village incentives or property-tax abatement, and names the state program as one T5 is “eligible” for. Doesn’t say the state certification has already been granted, or its amount. | T5 applied for, and was granted, this exemption for the Grayslake campus. The Illinois Department of Commerce and Economic
Opportunity's Data
Center Investment Program 2025 Annual Report lists "T5@Chicago IV, LP," Grayslake, 2025, with a $250,000,000 investment commitment, an estimated
$15,625,000 in tax benefits, and 20 new jobs. T5's Elk Grove Village and Northlake data centers are on the same list.
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| 7. Wetlands | ||||||||||||||||||||||||||||||||||||||||||||
| 24 | What conditions would cause the wetland permit application to resume? | We do not have plans to resubmit it. Our only other wetlands permit is for 0.3 acres of disturbance and remediation for road and utility crossings under a U.S. Army Corps of Engineers (USACE) 404 Wetlands Permit which authorizes dredging or filling in “waters of the United States” (WOTUS) under the Clean Water Act. | Partial | Says T5 has “no plans” to resubmit. Doesn’t say what conditions would cause it to. | "No plans" is not a commitment, and T5's home page and CEO letter still say "indefinitely suspended." If the application is withdrawn, the U.S. Army Corps of Engineers will have a record of it. Publish it. What is the permit number for the 0.3-acre 404 permit? The Village’s September 2026 FAQ mailer does not mention it. | |||||||||||||||||||||||||||||||||||||||
| 25 | Does the current site plan still depend on that permit? | The layout of the campus (while still speculative) does not rely upon mitigation of the dispersed wetland areas. | Yes | Direct answer: the layout does not rely on mitigation of the dispersed wetland areas. | By T5's own description, the campus layout is "still speculative." The Village approved this project in 2025. What layout did it approve,
and what will residents be living next to? | |||||||||||||||||||||||||||||||||||||||
| 26 | What wetland acreage is affected, and what mitigation is proposed? | As noted in the original 15.75-acre Individual Permit application, the proposed solution replaced the dispersed, low farmland areas with a consolidated wetlands installation of 150% of the disturbed area within approximately 6-miles of the site. Commensurate with community feedback, this application has been voluntarily withdrawn. The Federal 404 Wetlands Permit noted above assumes remediation of .45 acres. | Yes | Gives acreage and mitigation for the withdrawn application (15.75 acres, 150% replacement within about 6 miles) and for the current permit (0.3 acres disturbed per item 24, 0.45 acres remediated). | The original application would have replaced 15.75 acres of wetland on site with a "consolidated wetlands installation" up to about 6 miles
away. The benefit leaves Grayslake; the loss doesn't. This answer says "voluntarily withdrawn," while the home page and the CEO letter still say
"indefinitely suspended." Which is it? (The 0.45 acres of remediation is 150% of the 0.3-acre permit, so those two figures are consistent.) | |||||||||||||||||||||||||||||||||||||||
| 8. Process | ||||||||||||||||||||||||||||||||||||||||||||
| 27 | Were the technical studies referenced in the special use permit approval published for public comment before the Village Board’s vote? If not, why not, and are they available now? | The following studies and site due diligence has been performed by qualified third-party experts and submitted as required to the Village of Grayslake. The Village has reviewed these submittals with separate third-party experts and has further developed criteria to bind T5 to the obligations recommended in said studies.
We have provided pertinent summaries of each of these studies in the responses contained herein. | No | Lists the studies but doesn’t say whether they were published before the vote, why not, or whether they are available now. It offers only T5’s own summaries. | The question asked whether the studies were published for public comment before the vote. The answer doesn't say. Summaries written by the
developer are not the studies. If the Village has "developed criteria to bind T5," publish the criteria and the studies. | |||||||||||||||||||||||||||||||||||||||
| 9. Accountability | ||||||||||||||||||||||||||||||||||||||||||||
| 28 | Are any of the public commitments — on water, sound, emissions or jobs — written into a binding agreement with the Village? | As with any new construction project, various requirements are contained within the zoning, building permit, and associated agreements. | No | Points generally to “zoning, building permit, and associated agreements” without identifying any binding commitment. | The question asked which commitments are binding. The answer names none. Which documents, and which sections, contain the commitments on water, sound, emissions and jobs? | |||||||||||||||||||||||||||||||||||||||
| 29 | What monitoring and reporting will T5 be required to provide to the Village, and at what frequency? What independent agency will do the monitoring? | Following occupancy, ongoing monthly monitoring of water utilization (through water meter readings), generator run-time tracking (for IEPA permit), and air quality monitoring will be conducted and reported to the appropriate entity as required. | Partial | Lists what will be monitored and gives a frequency (monthly). Names no independent agency, and the recipient is only “the appropriate entity.” | No independent agency is named, and no public reporting is promised. Results go "to the appropriate entity as required." Sound isn't on the monitoring list at all. Will residents be able to see the water, generator and air-quality reports? | |||||||||||||||||||||||||||||||||||||||
Source: investingingrayslake.com/faq ("Paid for by T5 Data Centers"), captured October 8, 2026, 20:10 UTC. Questions and answers are reproduced exactly as published, in the page's order and section headings. Table 1 is reproduced from the same page. “The Village’s September 2026 FAQ mailer” is Grayslake Data Center Campus: Frequently Asked Questions (Village of Grayslake, dated September 2026), mailed to residents and received October 14, 2026. Where a figure is ours rather than T5’s, we show the arithmetic. “Question answered?” rates whether the answer responds to every part of the question as asked: Yes means all parts, Partial means at least one part, No means none. It does not rate whether the answer is accurate.
Questions T5 Didn’t Answer
Residents sent T5 a list of questions (read the full list, PDF). T5’s Questions and Answers page posts many of them. The 20 below appear nowhere on that page, as of October 8, 2026. Numbers refer to our list.
1. Water
- 1.3Are there any other circumstances in which the system consumes water beyond the sealed loop, and if so, how much?
- 1.5What chemical additives are used in the closed loop, and what are the handling and disposal requirements for the spent fluid?
3. Sound and infrasound
- 3.3What are the modeled sound levels (dBA and octave-band/low-frequency) at the nearest homes and schools, for both daytime and nighttime operation?
- 3.4What is the continuous (Leq) sound level during normal 24/7 operation, measured at the property line and at the nearest residences? Please report both A-weighted (dBA) and unweighted/low-frequency octave-band levels.
- 3.5Do the modeled figures include generator testing and emergency operation?
- 3.6Were infrasound levels considered, and if so, what levels were deemed acceptable?
- 3.7What monitoring is planned for audible sound and for infrasound, and who will conduct it?
5. Battery storage and fire risk
- 5.2Will the BESS units be indoors or outdoors? If indoors, what containment measures are planned?
- 5.3What separation distances and containment measures are planned between BESS units and the nearest homes?
- 5.4Lithium batteries in thermal runaway generate their own oxygen and generally must be left to burn out. What is the emergency plan for such an event?
- 5.5How prepared are regional fire departments to handle large-scale incidents involving the data center, and what training and equipment will be provided? Who pays for it?
6. Jobs
- 6.2How many permanent jobs filled by Lake County residents will this project create, and at what median salary? How many of the local Lake County jobs require specialized skills or credentials?
- 6.3How many of the proposed jobs are direct employees of this project rather than contractors?
- 6.5How many actual construction jobs filled by local labor are planned for each year, including this year?
- 6.7“Up to” sets a ceiling, not a floor, and a single job clears it. What is the minimum number of jobs T5 is committing to?
7. Revenue and fiscal risk
- 7.2Who is responsible for demolition or site restoration if the campus is abandoned?
- 7.3Has T5 given Grayslake any guarantees on the number of buildings that will be built such that Grayslake can rely on a specific amount of tax revenue income?
9. Process, notice and transparency
- 9.2Was a construction/development notice sign posted at the site? If so, when and where; if not, why not?
- 9.3What specific outreach — direct mailings, meetings, or notices — was directed at Saddlebrook Farms residents before the special use permit was granted, and on what dates?