Charles M Salter - SFDPH

~"

~

Charles

M

Salter

..'C.".l'.,

.

~

i~

7 January

Consultants

2003

in Acoustics

& AudioNisual

System

Design'

130 Sutler Street

San Francisco

California 94104'

Tel: 415 397044?

Fax: 4153970454

cmsalter@ cms8lter:coln

cmsalter.bom

Mike McClintock, AICP

Gerson/Overstreet Architects

116 Natoma Street

Third Floor

San Francisco, CA 94105-3704

Measurement Report -San Francisco General Hospital

CSA Project No.02-0435

Subject:

Dear Mike:

Charles

M Salter, PE

David R Schwind,

Anthony

FAES

P Nash..PE

The following

presents the results of environmental monitoring performed January 2 -

3, 2003 at three locations around San Francisco General Hospital.

Eva Duesler

Thomas

A Schindler,

PE

r Aosen

~

Freytag; PE

Harold S Goldberg,

P~f

Kenneth W Graven,

PE ,

TImOthy M Der

Eric L Broadhurst,

Michael

D Toy, PE

Thomas

J Corbel!

Durand

R Begau1t, Ph.D.

Robert B Skye

Ross A Jerozal

Philio N Sanders

J4AieA Malork

Robert P Alvarad

Joev G O'Anaelo

Joe

Blackburn

Bnlnda

Eric

RYes

A Yee

rl1110lhy

rrov

C McLain

Gimbel

Pamela M Void

Kevin Frye

.,-"'--

PE

" .,"--

LOCATION

#1-

NORTH SIDE OF 22ND ST. BETWEEN POTRERO AVE. & HAMpSHIRE

ST.

The first measurementlocation was in a residential areajust west of San Francisco

General Hospital; see below for a map and photo. The monitor was placed on a

telephone pole at a height of9 feet above the sidewalk. A ten-minute spot measurement

was also made at the monitor location to obtain a more precise characterization of the

short-term noise environment at this location. The noise environment was dominated

by local traffic ( cars and light trucks) on 22ndStreet and traffic on Potrero Avenue. In

addition, pedestrians and occasional airplane flyovers made some contribution to the

overall noise environment. The graph on the following page illustrates the measured

noise environment.

~

McClintock, Mike

7 January 2003

Page 2

Location

1 -North

Side of 22nd Street between

Potrero and Hampshire

m

~

"Qj

>

0)

-l

"0

c:

j

0

(/)

"0

0)

~

CI

.0;

~

-i.

The DNL measuredover the 24-hour period was 68 dB. Attached to this report is a

graph showing the hourly noise levels (Leq) as well as the overall measuredDNL. The

table on the next page shows measuredhourly Lealevels for this location.

McClintock, Mike

7 January 2003

Page 3

11:00-12:00

12:00- 13:00

13:00 -14:00

14:00- 15:00

15:00 -16:00

16:00-17:00

17:00-18:00

18:00-19:00

19:00- 20:00

20:00-21:00

21 :00- 22:00

22:00- 23:00

23:00 -0:00

0:00- 1:00

1:00 -2:00

2:00- 3:00

3:00- 4:00

4:00- 5:00

5:00- 6:00

6:00- 7:00

7:00- 8:00

8:00- 9:00

9:00- 10:00

10:00 -II :00

LOCA TION #2 -SAN

68

68

67

67

66

66

65

65

64

62

63

61

60

61

58

58

58

64

60

63

65

65

67

65

BRUNO AVE. AT 23RD STREET

The second measurementlocation was in a residential areajust south of San Francisco

General Hospital. The monitor was placed on a telephone pole at a hei~ht of8 feet

above the sidewalk on the east side of San Bruno Ave. just south of23r Street; the map

and photo on the following page illustrate the measurement location. A ten-minute spot

measurementwas also made at the monitor location to obtain a more precise

characterization of the short-term noise environment at this location. The noise

environment was dominated by traffic (cars and light trucks) on 23rd Street and San

Bruno Avenue. Most of the traffic was due to the parking structure located acrossthe

street and general hospital circulation. In addition, pedestrians and occasional airplane

flyovers made some contribution to the overall noise environment. The graph on the

following page illustrates the measurednoise environment.

McClintock, Mike

7 January 2003

Page 4

Location

00-00

01.00

02-00

03'00

2 -San Bruno Avenue at 23rd Street

0400

0500

Time

(minutes)

06"00

07'00

08-00

09.00

McClintock, Mike

7 January 2003

Page 5

The DNL measuredover the 24-hour period was 65 dB. Attached to this report is a

graph showing the hourly noise levels (Leq} as well as the overall measuredDNL. The

table on the next page shows measuredhourly Leqlevels for this location.

-

10:00-11:00

62

11:00-12:00

62

62

63

62

61

63

62

60

59

59

59

59

59

60

55

54

52

54

59

60

63

63

62

63

12:00- 13:00

13:00 -14:00

14:00 -15:00

15:00-16:00

16:00-17:00

17:00-18:00

18:00-

19:00

19:00-20:00

20:00-21:00

21:00-22:00

22:00- 23:00

23:00-0:00

0:00-

1:00

1:00-2:00

2:00-

3:00

3:00-4:00

4:00-

5:00

5:006:00-

6:00

7:00

7:00-

8:00

8:00-

9:00

9:00-10:00

I0:00-II:00

LOCATION

#3-

DEHARO

AVENUE AT 24TH STREET

The third measurement location was in a residential area east of San Francisco General

Hospital. The monitor was placed on a telephone pole at a height of 8 feet above the

sidewalk on the west side ofDeHaro Ave. at the comer of24th Street; the map and

photo on the following page illustrates the measurementlocation. A ten-minute spot

measurementwas also made at the monitor location to obtain a more precise

characterization of the short-term noise environment at this location. Background noise

is controlled by US Highway 101 and punctuated with occasional local traffic and

aircraft flyovers. The graph on the following page illustrates the measurednoise

environmenL

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download