Minimum Set Back Distances from Protected Structures
(feet)
| |||
---|---|---|---|
RA
|
250
|
NC
|
250
|
RB
|
250
|
CA
|
250
|
RC
|
250
|
CB
|
250
|
RD
|
250
|
HC
|
250
|
ORD
|
250
|
LI
|
250
|
Permitted Increase
(dBA)
|
Duration of Increase
(minutes)*
|
---|---|
5
|
15
|
10
|
5
|
15
|
1
|
20
|
1
|
NOTE:
| |
*
|
Cumulative minutes during any one hour
|
Minimum Set Back Distances from Protected Structures
(feet)
| |||
---|---|---|---|
RA
|
250
|
NC
|
250
|
RB
|
250
|
CA
|
250
|
RC
|
250
|
CB
|
250
|
RD
|
250
|
HC
|
250
|
ORD
|
250
|
LI
|
250
|
{1}
|
CA Conservation A District.
| |
{2}
|
CB Conservation A District.
| |
{3}
|
HC Highway Commercial District.
| |
{4}
|
HI Heavy Industrial District.
| |
{5}
|
LI Light Industrial District.
| |
{6}
|
ORD Office Research and Development District.
| |
{7}
|
PRD Planned Residential District.
| |
{8}
|
RC Residential C District.
| |
{9}
|
RD Residential D District.
|