HomeMy WebLinkAbout3.0 Conditions of ApprovaloLssoN
ASSOCIATES
June 3,2013
Fred Jarman and
Glenn Hartmann
Garfield County Building and Planning Department
108 8th Street, Suite 401
Glenwood Springs, CO 81601
RE: Response to Conditions of Approval #3 & #4, DIRECTOR DETERMINATION:
Ghevron - PDC Energy Vehicle Safety Area (File No. GAPA 75341
Dear Fred,
This letter is a follow-up to Director Determination: Chevron - PDC Energy Vehicle Safety
Area (File No. GAPA 7534), dated May 28, 2013. The attached documents are intended to
accommodate the request for additional information as detailed in Conditions of Approval
(COAs) #3 & #4. PDC Energy will adhere to the remaining COAs as detailed in the Director's
Determination.
lf you have any questions regarding this submittal or require additional information please
contact me.
Sincerely,
Lorne C. Prescott
Senior Scientist
lprescott@oaconsultinq.com
DIRECT: 970.263.6014
As stated
760 Horizon Dr., Suite 102
Grand Junction, CO 81506
TEL 970.263.7800
FAX 970.263.7456 www.olssonassociates. com
-_
A S 5 O C IAT E 5
May 31 ,2013
Glenn Hartmann
Garfield County Community Development Department
108 8th St, Ste 401
Glenwood Springs, CO 81601
Re: Addendum to Traffic AnalYsis
Director Determination, condition of Approval #4, File No. GAPA 7534
The traffic assessment performed for the proposed water draw and vehicle safety area (VSA)
included a summary of the existing traffic, both volume and truck percentages, along Garden
Gulch Road and the recent trending volume reductions along the roadway. lt also assesses the
expected traffic, both volume and truck percentages, to the proposed facilities and the level of
inclusion of the traffic as a subset of the existing volumes. Taking into account these
considerations, it is expected that there will not be an appreciable increase in volume or shift in
proportion of heavy trucks as compared to the total site traffic along Garden Gulch Road or its
intersection with CR 215. Therefore, it is not expected that the proposed facilities will create
additional impact on the portions of these roadways currently utilized by site traffic and will not
prompt mitigation in the way of additional improvements to the county facilities.
Thank you for this opportunity to clarify the findings of the report.
Sincerely,
760 Horizon Drive, Suite 102
Grand Junction, CO 81506
TEL 970.263.7800
FAX 970.263.7456 www.olssonassociates.com
[W;444,
Christopher M Rolling, PE, PTOE\-)
OLSSON
ASSOCIATES
May 29,2013
Glenn Hartmann
Garfield County Community Development Department
108 8th St, Ste 401
Glenwood Springs, CO 81601
Re: Addendum to Geological and Soil Hazards Report
Director Determination, Condition of Approval #3, File No. GAPA 7534
As noted in the Conclusions and Summary of the Geological and Soil Hazards Report dated
March 2013 and included in the application:
According to the information provided by Garfield County, Colorado - GIS
Department pertaining to the location of the proposed Vehicle Chain-Up Facility,
with the exception of slope hazards, the overall geologic and soil hazards appear
to be low.
Stormwater controls and Best Management Practices (BMPs) should take into
consideration the geology and soil types present at this location. These
engineering controls and practices should be used temporarily and permanently
to divert stormwater away from the construction areas and to prevent additional
weight which could trigger a debris flow or landslide. Catchment basins should
be sited and designed so as not to add weight to potentially unstable areas.
The hazards identified in the Geologic Hazard Report are general in nature, and typify concerns
which should be addressed during construction and operation to mitigate these risks. No
immediate risks relating to the landslide and slope hazards beyond those which can be found
throughout the Parachute Creek valley exist in proximity to the proposed facility.
Thank you for this opportunity to clarify the findings of the report.
Sincerely,
'l'kryL,'
William Monroe
Associate Geologist
760 Horizon Drive, Suite 102 TEL 970.263.7800
Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com