Tippecanoe County, IN Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Governing section
- UZO § 4-10-6
- Residential daytime limit
- 55 dBA (7am-9pm)
- Residential nighttime limit
- 45 dBA (9pm-7am)
- Commercial boundary limit
- 60 dBA
- Industrial zone boundary limit
- 65 dBA
- Short exceedance allowed
- +10 dBA, max 15 min/day
- Special condition on use table
- Condition "4-10" for Large Data Center
Summary
In unincorporated Tippecanoe County, a Large Data Center is a permitted use in the I1, I2 and I3 industrial zones only under special condition 4-10, which subjects the facility to the county's Industrial Performance Standards, including the numeric noise ceilings set out at Unified Zoning Ordinance Section 4-10-6.
4-10-6 NOISE: (a) Noise shall be measured in decibels with a sound level meter meeting the latest standards of the American National Standards Institute (ANSI). The instrument shall be set to the A-weighting scale and the meter to slow response... (b) The table in 4-10-6-b-1 below specifies noise limits that apply on or beyond adjacent lot lines or zone boundaries outside the user's property. Noises shall not exceed the maximum sound levels specified in the table... CATEGORY A 55/45[1] On adjacent rural and residential land uses; CATEGORY B 60 On adjacent commercial land uses; CATEGORY C 65 Across I1, I2 or I3 zone boundary line. FOOTNOTE 1: In any residential zone, the maximum permitted sound level shall not exceed 55 dbA between 7:00am and 9:00pm and 45 dbA between 9:00pm and 7:00am. (c) The levels specified in 4-10-6-b-1 above may be exceeded by 10 dbA for a single period, no longer than 15 minutes, in any one day.
Full Breakdown
The Unified Zoning Ordinance's permitted-use table lists "Large Data Center" (SIC 123) as allowed in industrial zones subject to special condition "4-10," tying the use directly to Section 4-10, Industrial Performance Standards. ; Category B applies on adjacent commercial land at 60 dBA; and Category C applies across an I1, I2 or I3 zone boundary at 65 dBA. Noise must be measured with an ANSI-compliant sound level meter set to the A-weighting scale and slow response. The code allows a single exceedance of up to 10 dBA above the table limit for no more than 15 minutes in any one day, and treats impact noise (peaks more than 6 dBA above the meter reading) under a limit raised by 20 dBA over the base table value.
Noise from sources outside the operator's control, such as independent transportation facilities passing the site, is excluded from these limits. Where more than one noise level could apply to a location, the most restrictive of the two governs. Compliance with 4-10-3 through 4-10-7 (air pollution, glare/heat, vibration, noise, fire and explosive hazards) must be documented for SIC Group 20-39 activity in I1, I2 or I3 zones by a written statement from a Registered Professional Engineer submitted with the improvement location permit application, per Section 6-2-7.
Violations & Fines
The Unified Zoning Ordinance ties enforcement to the improvement location permit process administered by the Area Plan Commission's Administrative Officer. A data center operator whose equipment noise exceeds the applicable Category A, B or C ceiling in Section 4-10-6, without qualifying for the 10 dBA short-duration allowance, is out of compliance with its performance-standard obligations under special condition 4-10, which can affect permit compliance and trigger zoning enforcement action.
Frequently Asked Questions
What noise limit applies to a data center near a Tippecanoe County neighborhood?
Why does the noise standard apply to a Large Data Center at all?
Can a data center exceed the posted dBA limit at all?
Sources & Official References
Other rules in Tippecanoe County
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