HomeMy WebLinkAboutPIP 89-13; Mercotac; Planned Industrial Permit (PIP) (16)r A
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Carlsbad
Municipal Water District
5950 El Camino Real, Carlsbad, CA 92008
Engineering: (619) 438-3367
Administration: (619) 438-2722
Fax: (619) 431-1601
August 30, 1989
Gary Seward
Plant . Cook Architectural & Interior Design
2385 Camino Vida Roble, Suite 107
Carlsbad, Califomia 92009
Re: A.P.N. 167-030-53, R-P-O, Water Availability for S.E. Comer of
El Camino Real and Hosp Way, CMWD 89-C.313
Dear Mr. Seward:
The subject project is located within the Carlsbad Municipal Water
District service area. Water service can be made available to each lot/
unit that may be developed at the Idme an application for service is com-
pleted and all applicable fees are paid.
The applicant shall meet the conditions of the Carlsbad Municipal
Water District and its Water Master Plan. Installation of any facilities
shall be in accordance with the District's "Standard Plans and Specifications"
dated January 1987.
The en1±!:e water system be evaluated in detail as assurance that
adequate capacity for domestic landscaping and fire flow demands are
addressed.
Developer/Owner shall meet with the Fire Marshal and the District
Engineer and meet all requirements to provide fire and domestic flow and
will pay all costs associated with providing said service.
Regarding fees and deposits: The developer will be ijesponsible for
the major facility charge which will be collected at time of issuance of
building permit. Please contact the undersigned if you have any questions
regarding this project.
Very truly yours.
F. JerryU Whitlej
Engineering Manager
FJW: jcm
CMWD 89-C.313
"Serving Carlsbad for over 35 years"
Chemical Analysis — Consultation
Research— Product Development
American Technical Laboratories, Inc.
8909 Complex Drive — Suite F
San Diego, California 92123
(714) 560-7717
Mercotac, Inc.
7167 Construction Court
San Diego, California 92126
LABORATORY NO. 0799-80
DATE OF REPORT September 15, 1980
DATE RECEIVED September 10, 1980
IDENTIFICATION I. H. Survey
REQUEST Detennine Airborne Mercury Levels
WORKPLACE DESCRIPTION
The workroom consists of a single room 20x18x8'(ceiling). Liquid mercury is
added to very small receptacles to act as a liquid bearing and electrical con-
tact. All operations are manual, and occasional spills into the carpeting
occur. There is no ventilation in the room except for a fan for cooling pur-
poses.
SAMPLING
Two area samples were taken. One was placed on the floor where mercury may
spill; the other was placed in the center of the table where mercury is dis-
pensed. Air was pulled through special charcoal tubes (MSA) in order to trap
the mercury vapor.
Area
Floor
Table
Flow Rate
0.5 ilpm
0.5 Ifm
Time
1007-1118
1006-1119
Volume
35.5 I
36.5 il
ANALYSIS
After acid extraction of the charcoal tube, the sample was analyzed by cold
vapor atomic absorption spectrometry.
Mercury mg/m^
Area Found TLV-TWA
Table
Floor
.025
.011
.05
.05
continued
Lab No: 0799-80
Page -2-
Amtech
CONCLUSION
The mercury in the air is surprisingly low, and is, in fact, below the TLV.
We caution, however, that the shortness of the test does not allow one to
assume that a thorough time weighted average (TWA) would yield the same
results. This consideration notwithstanding, it would appear that the work-
place is reasonably safe.
RECOMMENDATIONS
1. Place a carpet in the area where spillage can occur, but use a
carpet that can be shaken out each day.
2. Relocate the mercury filling and handling operation to an area
which can be exhausted. The type of exhaust system should take
the filling techniques into consideration. A hood with side
exhaust (instead of rear or ceiling exhaust) might be best.
Respectfully,
C ^i^'^'.^-C::Lii
Bk 113-119 David H.' Elg^s
4354 Laboratory Director
AIR SAMPUNG DATA LIBERTY
MUTUAL
Page_ _of_
P.H. Name, Location
MRROOTAC INC.. SAN DIEGO
Samples Collected by EILEEN BURKE-KLEIN
INDUSTRIAL HYGIENIST
Survey Date
6/7/89
Substance(s) Sampled (4 max.)
Elemental Mercury
Recommended Control Levels
0.05me/m^ as an 8 hour time-weighted averaee concentration
Collection Method
Air drawn through sorbent tubes containing iodized charcoal
Analytical Method
Cold vapor atomic absorption
Lab Reference #
45814
SAMPLE
^ NO.
TIME
START
END
LOCATION AND DESCRIPTION CONCENTRATION
(Mg/cu.rn.)(mi$3Ft)gP3»$^
'#1 9:23-
10:00
Operator Breathing Zone (OBZ) sample collected while filling connector
shells with mercury (0.35cc) Calibrated mercury dispenser X 1.
(Operator #1).
0.010
#2 9:32-
10:07
Area sample collected 1.5' above mercury dispensing operation. 0.0085
#3 9:41-
10:20
OBZ sample collected while filling connector shells with mercury (0.03cc)
Calibrated mercury dispenser X 1. (Operator #1).
0.0091
#4 10:00-
10:35
OBZ sample while filling connectors shells with 0.35cc's of mercury
(Operator #1).
0.0079
#5
i #6
10:07-
11:15
Area sample collected 1' above dispensing point between two operators. 0.0063 #5
i #6 10:20-
11:12
OBZ sample collected while dispensing 0.03cc of mercury into connector
shells. (Operator #2), NOTE: Pump leak noted.
0.019
#7 10:35-
11:25
OBZ sample collected while dispensing 0.35cc into connector shells. 0.0081
#8 11:12-
11:45
OBZ sample collected while dispensing 0.35cc into connector shells.
(Operator #2).
0.024
#9 11:15-Area sample collected 1.5' above dispensing point of operation.
1 (Worker #2).
0.011
These samples were collected at your facility on the date shown. The results represent conditions found at the time of the survey and may not represent conditions at other times
Ihe samples were collected to estimate workplace exposure and not to determine compliance or non-compliance with legal standards.
LPBt;l
compliance or non-compliance with legal standards.
LOSS PREVENTION DEPARTMENT — INDUSTRIAL HYGIENE SERVICE