HomeMy WebLinkAboutCUP 9; South Coast Asphalt; Conditional Use Permit (CUP) (9)MEMORANDUM
DATE : June 8, 1979
TO : Paul Bussey, City Manager
FROM: James C. Hagaman, Planning Director
RE: BRIEF HISTORY -SOUTH COAST ASPHALT PLANT
The following is a beief history highlighting the events regard- ing operational conditions especially noises of the subject operation.
1959: CUP-9 approved for an asphalt plant.
1961: Revision CUP-9, as per Planning Commission Resolution No. 204 to permit rock quarrying and rock crushing.
These two above permits did not establish conditions to mitigate adverse effects of the operation such as noise or the time limits of the operation.
Residents in the nearby area have complained to the City about late night operation, especially noise and have requested the City to open Conditional Use Permit to miti- gate these problems.
Staff could not verify noise complaints after several late night field checks.
The Planning Commission discussed this matter with repre-
sentatives of South Coast Asphalt and the citizens in the area. It was decided that there was no evidence to prove
that South Coast Asphalt was responsible for the late night
noise. Also, the representatives of South Coast Asphalt
indicated they would limit operations to within 6:OO A.M.
and 7:OO P.M.; if they had to work beyond these hours for
special orders they would notify the City. The City Council
agreed with the Planning Commission's findings, however they did ask the Police Department to monitor the complaints for a given period of time.
Twice in early 1978 letters were sent to residents in the
area asking them to notify the Carlsbad Police Department
at the time of noise disturbance so that such disturbance could be investigated and verified. The only calls the
department received were for operations after 6:OO A.M.
1975:
1976:
1978:
Memorandum - Paul Bussey
June 8, 1979
Page Two
1979: Staff received numerous phone calls from various citizens complaining of late night operations. that they should note the times of the operations and by letter explain the problem.
Staff indicated
MY 9, 1979: The City received letters explaining that the operation and noise begins at 6:OO A.M. and continues through
9:00 P.M.
MY I 1979: Staff monitored the noise at various times and locations near South Coast Asphalt on May 16 and 17. listed below showing the time of the test, the location,
the maximum, and the average. All noise measurements are
dBA .
The results are
May 16 5:lO - 5:25 p.m. 81 maximum 65 average
North Way/Gail Drive
5:30 - 5:40 75 maximum 62 average
Haymar by South Coast Asphalt
Haymar (E of previous position) 6:30 - 6:45 78 maximum 61 average
6:50 - 6:55 84 maximum 67 average
7:lO - 7:25 77 maximum 63 average
Haymar (E of above-end of Haymar)
College and Haymar
7:30 - 7:45
Gail Drive
59 average 76 maximum
8:OO - 8:25 78 maximum 70 average
Vista Way at Port Circle (just above freeway)
10:25 - 10:35-a.m. 83 maximum 73 average
Vista Way at Port Circle (same as above)
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May 31, 1979
South Coast Asphalt was not operating.
5:25 - 5:30 p.m.
Haymar Drive
64 maximum
5:35 - 5:40 72 maximum
North Way at Gail Drive
6:lO - 6:20 Haymar Drive
62 maximum
6:30 - 6:40 71 maximum
Port Circle at Vista Way
June 4, 1979
9:30 - 9:45 a.m. Haymar Drive
6): maximum
9:50 - 9:55 71 maximum
Port Circle at Vista Way
June 4, 1979
5:15 - 5:30 p.m. Haymar Drive
67 maximum
5:40 - 5:50 71 maximum
Port Circle at Vista Way
6:OO - 6:15 76 maximum
6:15 - 6:30 86 maximum
North Way at Gail Drive
Port Circle & Vista Way
7:lO - 7:15 Haymar Drive
Haymar Drive
7:20 - 7:40
70 maximum
71 maximum
7:40 - 8:lO 81 maximurn
Port Circle at Vista Way
8:15 - 8:45 70 maximum
North Way at Gail Drive
June 6, 1979
56 average
54 average
54 average
64 average
61 average
63 average
58 average
63 average
62 average
63 average
58 average
59 average
63 average
61 average
5:20 - 5:35 p.m. Haymar Drive
75 maximurn 66 average
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5:40 - 5:55 71 maximum
Haymar Drive (Tape Recorded)
6:05 - 6:35 90 maximum
Port Circle at Vista Way
65 average
71 average
6:50 - 7:OO 75 maximum 68 average
North Way at Gail Drive (Tape Recorded)
7:20 - 7:50 Haymar Drive
72 maximum 62 average
7:55 - 8:25 73 maximum
Port Circle at Vista Way
68 average
During the early evening hours the freeway constituted
a large part of the noise. Later, the freeway was hardly noticable above the noise from South Coast Asphalt. The noise from South
Coast Asphalt is an irregular clanking and grinding. It is much more noticale and annoying than the freeway noise. In addition,
the noise "seemed" to be louder late in the evening. The test on
May 31 gives noise data when South Coast is not operating.
The Carlsbad General Plan establishes a guideline of 60 dba during
the daytime and 45 dba at night. Although the residences are in Oceanside, these standards should apply to these residences also.
KJL/ar
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