The City of Lodi sets no fixed decibel table for data centers. Municipal Code Chapter 9.24 bars any loud or unnecessary noise as a nuisance, and caps nighttime noise at ambient plus five decibels at a residential property line between 10 p.m. and 7 a.m.
Unlike San Joaquin County's fixed 50/45 dBA table, Lodi enforces noise through nuisance and performance standards. Municipal Code Section 9.24.020 makes it unlawful to make any loud, unnecessary, or unusual noise that disturbs a neighborhood, judged without a meter. Section 9.24.030(C) adds the one numeric limit: between 10 p.m. and 7 a.m., noise may not exceed the ambient level at a residential property line by more than five decibels, for commercial and noncommercial sources alike. The code defines commercial noise to include compressors, fans, and air conditioning units - the continuous equipment a data center runs. Zoning Section 17.14.040(F) also bars any use from exceeding the General Plan noise standards. A violation is an infraction, fined up to $250.
Noise over the Section 9.24.030(C) nighttime limit, or any nuisance noise under 9.24.020, is an infraction fined up to $250, enforced by police or the Community Development Director.
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