27728 - Quarry Maint. FacilityWEAN lDessii(gin ]Dev dlo mlim ty 111nicu =
0 CIVI.L'ENGINE.ERING. ® LAND PLANNING
THE QUARRY GOLF MAINTENANCE
FACILITY REMODEL
HYDROLOGY ANALYSIS
The proposed Quarry Golf Course-Maintenance Facility remodel project consists of the addition
of several buildings, a new fueling facility, a trash facility and some improved parking. Attached
is a site plan showing the proposed project improvements. Also attached is the preliminary
grading plan which shows that the existing drainage pattern is not altered. The area of the
proposed additional .buildings is presently an impervious hard surface so there is no change in the
amount of drainage or the discharge amount. The site development located in the southeastern
portion of the site results in an. increased impervious area of 8,025 square feet.. Presently there
exists a drywell along with a depressed area used to retain the drainage on -site at this location.
The project will-'upgrade the existing drywell to handle the drainage forthe minimal increase in
impervious area for the project site. A Maxwell drainage system capable of handling 0.10 CFS
of flow will provide the drainage solution for the minimal increase in drainage.
A SWPPP is required by the City to be approved prior to permits in order to conform to the
NPDES requirement. Attached are details of a sand and oil separator that..will be installed, for the
equipment wash area and a detail of an entrapment basin for the chemical mixing area. The
previous fuel facility is being replaced by a dual lined tank system with the* design of the fueling
facility conforming with-the Health Department and the Fire Department.
The improvements proposed by this project do not change the drainage characteristics of the site
as previously approved.
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I. REFER TO SPECIFIC.TION SHEET NO S-324
REFER TO SPECIFICATION SHEET NO S-!63
3 REFER TO SPECIFICATION 0 5 51
ALL ADDITIONAL DRAWINGS AND
SPECIFICATION SWEETS REFER TO MFG.
JTHREE COMPARTMENT SAND l GREASE
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INTERCEPTOT HI T SAMPLE BOX
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APPLICANT
DESIGN BUILD STRUCTURES. INC 2 P-,.
CHARLES McBRIDE
77980 WILDCAT DR., SUITE 2
PALM DESERT, CA 92211
T (760) 772 -0800 F (760) 772 --0823
ENGINEER:
W & W DESIGN DEVELOPMENT
79 -440 CORPORATE CENTER DRIVE
LA QUINTA, CA 92253
PH: (760)771-6237
FAX:(760)771 -6238
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EXISTING IMPERVIOUS AREA
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FOR: DESIGN BUILD STRUCTURES INC. LA QUINTA, CALIFORNIA
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