HomeMy WebLinkAboutARCH-0188-2023 20230420 (Laurel Garden) - Earth Systems ResponsesEarth Systems
4378 Old Santa Fe Road I San Luis Obispo, CA 93401 1 Ph: 805.544.3276 1 www.earthsystems.com
March 6, 2020
File No.: 302473-001
Mr. Chuck Braff
Laurel Creek, LLC
1150 Laurel Lane
San Luis Obispo, CA 93401
PROJECT: LAUREL CREEK DEVELOPMENT
1150 LAUREL LANE
SAN LUIS OBISPO, CALIFORNIA
SUBJECT: Response to Regulatory Database Review, Unit 182, San Luis Obispo
California 93401, prepared by Partner ESI Inc., dated March 5, 2020
Dear Mr. Braff:
Pursuant to your request, Earth Systems Pacific (Earth Systems) has prepared this letter regarding
to the referenced document prepared by Partner ESI, Inc. (Partner) for the property at 1150
Laurel Lane in San Luis Obispo. The report summarizes the findings of a review of regulatory
agency databases regarding the use, storage or release of hazardous materials/wastes on and
around the site, and their potential to adversely affect environmental conditions on the property.
On pages 4 and 5 of the document, two potential concerns are listed, which are associated with
past manufacturing activities and hazardous materials waste use or storage permits.
The first listing is for the Vetter Corporation , which operated at the site in the late 1970's to circa
1980. Vetter's manufacturing operations took place in the portion of the building most recently
used as a manufacturing space by No Slack Industries, with hazardous material/hazardous waste
storage occupying the former flammable liquids room on the northwest side of the main building.
Earth Systems drilled three borings in the former Vetter manufacturing area, and one boring
immediately adjacent to the flammable liquids storage room, and submitted 12 samples for
laboratory analysis. Low levels of oil -range total petroleum hydrocarbons (TPH) were detected
in one sample adjacent to the flammable liquids storage room; no volatile organic compounds
(VOCs) were detected in the sample. None of the remaining samples contained detectable
concentrations of TPH or VOCs. Metals concentrations in all soil samples were within typical
background ranges for the San Luis Obispo area.
The second listing is for the Electronic Scale Corporation (Escorp), which had its manufacturing
operations in the same area as the Vetter Corporation, and stored hazardous materials/wastes
in the flammable liquids storage room and the former hazardous materials shed, located
approximately 100 feet northwest of the main manufacturing building. The former Escorp
manufacturing area was investigated using the same borings as those for the Vetter operation,
along with an additional boring drilled immediately adjacent to the hazmat shed. As described
above, no significant concentrations of TPH or detectable levels of VOCs were detected in soil
samples from in the manufacturing area. The boring drilled adjacent to the hazmat shed
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March 6, 2020
contained trace levels of one chlorinated VOC in a soil sample from a depth of 5 feet, but did not
contain detectable concentrations of TPH or VOCS in other samples to a depth of 20 feet. Metals
concentrations in all soil samples were within typical background ranges for the San Luis Obispo
area.
Based on the locations of the 2018 borings relative to the areas of concern listed in the Partners
letter, and considering the absence of significant or detectable concentrations of TPH, VOCs and
metals in soil samples from these borings, it is our opinion that these areas of concern have been
adequately addressed as part of the November 2018 subsurface assessment.
This document has been prepared for the use of 1150 Laurel Creek, LLC. Use of, or reliance on
the information and opinions contained in this report by other parties, without first consulting
this office, is at those parties' own risk.
The findings and opinions rendered in this letter are based on the results of laboratory analysis
of soil samples. It is possible that variations exist beyond or between points sampled. Changes
in conditions could also occur due to contaminant migration, variations in rainfall, temperature,
or other factors not apparent at the time of field work. The services provided by Earth Systems
have been conducted in a manner consistent with the level of care and skill ordinarily exercised
by members of our profession currently practicing under similar conditions in this area of
California. No warranty is expressed or implied.
We appreciate the opportunity to be of service. If you have any questions regarding this letter,
please contact me at your convenience.
Sincerely, t4fcL
G'
Earth Systems Pacific 0t�'�{1�,
No. 169
Timothy Conroy, CEG
Senior Geologist
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