New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 29 - NOISE CONTROL
Subchapter 2 - PROCEDURES FOR THE DETERMINATION OF NOISE FROM STATIONARY SOURCES
Section 7:29-2.10 - Calculations

Universal Citation: NJ Admin Code 7:29-2.10

Current through Register Vol. 56, No. 18, September 16, 2024

(a) Corrected source sound level: Correct the total sound level for the neighborhood residual sound in accordance with the procedure for using Table 1 to determine the sound level from the sound source of interest. If the difference between the total sound level and the neighborhood residual sound level is greater than 10 dB no correction is necessary.

TABLE 1
THE DETERMINATION OF SOURCE SOUND LEVEL FROM TOTAL AND NEIGHBORHOOD
RESIDUAL SOUND MEASUREMENTS
A Sound LevelB Correction Factor
Difference (Decibels)(Decibels)
0.59.6
17
24
33
41.8
51.6
61.2
71
80.75
90.6
100.5
Greater than 100.0

Procedure for Using Table 1

Step 1: Subtract the maximum measured level of the neighborhood residual sound from the minimum measured level of the total sound. If the value obtained is a decimal number, round the value down to the nearest lower value in Column A.

Step 2: In Column A, find the difference determined under Step 1 and its corresponding correction factor in Column B.

Step 3: Subtract the value obtained from Column B in Step 2 from the minimum measured total sound level (used in Step 1) to determine the sound level attributable to the sound source.

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