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(E) GARAGE <br />(E <br />) <br /> <br />P <br />O <br />R <br />C <br />H <br />PROPERTY LINE - 60.00' <br />PROPERTY LINE - 60.00' <br />PR <br />O <br />P <br />E <br />R <br />T <br />Y <br /> <br />L <br />I <br />N <br />E <br /> <br />- <br /> <br />1 <br />1 <br />0 <br />. <br />0 <br />0 <br />' <br />PR <br />O <br />P <br />E <br />R <br />T <br />Y <br /> <br />L <br />I <br />N <br />E <br /> <br />- <br /> <br />1 <br />1 <br />0 <br />. <br />0 <br />0 <br />' <br />6' UTILITY <br />EASEMENT <br />℄ <br />W CHESTNUT AVE <br />(E) 1-STORY <br />MAIN UNIT <br />(F.F. = 11.18) <br />(9.67 TC) <br />(9.00 FL) <br />(10.00 TC) <br />(9.33 FL) <br />(ASSUMED ELEVATION) <br />6' <br /> <br />U <br />T <br />I <br />L <br />I <br />T <br />Y <br />EA <br />S <br />E <br />M <br />E <br />N <br />T <br />(N) ADU <br />F.F. = 12.00 <br />PAD = 11.58 <br />3 <br />7 <br />10 <br />11.20 FL <br />HP <br />i=1% FL <br />i= <br />1 <br />% <br /> <br />F <br />L <br />10 <br />. <br />5 <br />8 <br /> <br />F <br />L <br />(N) JADU <br />F.F. = 11.18 <br />PAD = 10.76 <br />1 <br />2 <br />5 <br />4 <br />4 <br />10.85 FS <br />(11.09 FS) <br />(N <br />) <br />PO <br />R <br />C <br />H <br />HAG <br />3 <br />4 <br />4 <br />(N) ADDITION <br />F.F. = 11.18 <br />PAD = 10.76 <br />5 <br />8 <br />8 <br />7 <br />7 <br />6 <br />6 <br />3 <br />(E) <br />(E) <br />(E) <br />9 <br />1 <br />(E) <br />2 <br />2 <br />2 <br />10.93 FS <br />(11.39 FS) <br />10.85 FS <br />(11.00 FS) <br />(11.64 FS) <br />11.35 FG <br />(11.49 FG) <br />11.40 FG <br />(11.01 FG) <br />11.05 FS <br />(10.98 FG) <br />11.00 FS <br />(10.94 FG) <br />10.61 FS <br />10.89 FS <br />(11.14 FS) <br />10.75 FS <br />10.70 FS <br />10.94 FS <br />11.17 FG 11.20 FG <br />10.90 FS <br />(11.40 FS) <br />11.10 FS <br />1% <br />5% MIN <br />2% MIN <br />5% <br /> <br />M <br />I <br />N <br />2% <br /> <br />M <br />I <br />N <br />(11.26 FG) <br />11.23 FG <br />i= <br />1 <br />% <br /> <br />F <br />L <br />2% <br /> <br />M <br />I <br />N <br />2% <br /> <br />M <br />I <br />N <br />i=0.25% FL2% MIN <br />2% MIN <br />5% <br /> <br />M <br />I <br />N <br />2% <br /> <br />M <br />I <br />N <br />i= <br />0 <br />. <br />2 <br />5 <br />% <br /> <br />F <br />L <br />2% <br /> <br />M <br />I <br />N <br />2% <br /> <br />M <br />I <br />N <br />i= <br />0 <br />. <br />2 <br />5 <br />% <br /> <br />F <br />L <br />10 <br />. <br />6 <br />5 <br /> <br />F <br />L <br />10.73 FL 10.83 FL <br />11.04 FL 11.07 FL <br />10 <br />. <br />5 <br />4 <br /> <br />F <br />L <br />11.20 FS <br />11.30 FS <br />10 <br />. <br />8 <br />4 <br /> <br />F <br />L <br />11.33 FG <br />i= <br />0 <br />. <br />2 <br />5 <br />% <br /> <br />F <br />L <br />2% <br /> <br />M <br />I <br />N <br />2% <br /> <br />M <br />I <br />N <br />10 <br />. <br />8 <br />5 <br /> <br />F <br />L <br />10 <br />. <br />9 <br />0 <br /> <br />F <br />L <br />10.90 FS <br />10.93 FS <br />DRAINAGE PLAN <br />4" PCC <br />90% COMPACTED <br />SUBGRADE <br />WALKWAY SECTION <br />N.T.S. <br />7 <br />4" PCC <br />6" AB @ 95% <br />COMPACTED <br />SIDEWALK SECTION <br />(WHERE NEEDED) <br />N.T.S. <br />90% COMPACTED <br />SUBGRADE <br />(E) SIDEWALK TO BE REPLACED IF DAMAGED TO THE SATISFACTION OF <br />THE INSPECTOR. ENCROACHMENT PERMIT IS REQUIRED FOR THE WORK. <br />PRIOR TO PLACEMENT OF FILLS, THE BOTTOM OF THE REMEDIAL <br />REMOVALS NEED TO BE SCARIFIED TO A MINIMUM DEPTH OF 12 INCHES. <br />ONSITE SOIL MAY BE REUSED PROVIDED ALL DELETERIOUS MATERIALS <br />ARE REMOVED. <br />THE EXTENT OF THE REMOVAL SHALL BE WITHIN THE CONCRETE SLAB <br />FOOTPRINT AND 1 FOOT BEYOND. <br />GENERAL GRADING NOTES <br />The following steps will help reduce the stormwater impacts of leaks and spills: <br />Education <br /> Be aware that different materials pollute in different amounts. Make sure that each employee knows what a "significant spill" is for each <br />material they use, and what is the appropriate response for "significant" and "insignificant" spills. <br /> Educate employees and subcontractors on potential dangers to humans and the environment from spills and leaks. <br /> Hold regular meetings to discuss and reinforce appropriate disposal procedures (incorporate into regular safety meetings). <br /> Establish a continuing education program to indoctrinate new employees. <br /> Have contractor's superintendent or representative oversee and enforce proper spill prevention and control measures. <br />General Measures <br /> To the extent that the work can be accomplished safely, spills of oil, petroleum products, substances listed under 40 CFR parts 110,117, and <br />302, and sanitary and septic wastes should be contained and cleaned up immediately. <br /> Store hazardous materials and wastes in covered containers and protect from vandalism. <br /> Place a stockpile of spill cleanup materials where it will be readily accessible. <br /> Train employees in spill prevention and cleanup. <br /> Designate responsible individuals to oversee and enforce control measures. <br /> Spills should be covered and protected from stormwater runon during rainfall to the extent that it doesn't compromise clean up activities. <br /> Do not bury or wash spills with water. <br /> Store and dispose of used clean up materials, contaminated materials, and recovered spill material that is no longer suitable for the intended <br />purpose in conformance with the provisions in applicable BMPs. <br /> Do not allow water used for cleaning and decontamination to enter storm drains or watercourses. Collect and dispose of contaminated water <br />in accordance with WM-10, Liquid Waste Management. <br /> Contain water overflow or minor water spillage and do not allow it to discharge into drainage facilities or watercourses. <br /> Place proper storage, cleanup, and spill reporting instructions for hazardous materials stored or used on the project site in an open, <br />conspicuous, and accessible location. <br /> Keep waste storage areas clean, well organized, and equipped with ample cleanup supplies as appropriate for the materials being stored. <br />Perimeter controls, containment structures, covers, and liners should be repaired or replaced as needed to maintain proper function. <br />Cleanup <br /> Clean up leaks and spills immediately. <br /> Use a rag for small spills on paved surfaces, a damp mop for general cleanup, and absorbent material for larger spills. If the spilled material is <br />hazardous, then the used cleanup materials are also hazardous and must be sent to either a certified laundry (rags) or disposed of as hazardous <br />waste. <br /> Never hose down or bury dry material spills. Clean up as much of the material as possible and dispose of properly. See the waste <br />management BMPs in this section for specific information. <br />Minor Spills <br /> Minor spills typically involve small quantities of oil, gasoline, paint, etc. which can be controlled by the first responder at the discovery of <br />the spill. <br /> Use absorbent materials on small spills rather than hosing down or burying the spill. <br /> Absorbent materials should be promptly removed and disposed of properly. <br /> Follow the practice below for a minor spill: <br />Contain the spread of the spill. <br />Recover spilled materials. <br />Clean the contaminated area and properly dispose of contaminated materials. <br />Semi-Significant Spills <br /> Semi-significant spills still can be controlled by the first responder along with the aid of other personnel such as laborers and the foreman, <br />etc. This response may require the cessation of all other activities. <br /> Spills should be cleaned up immediately: <br />Contain spread of the spill. <br />Notify the project foreman immediately. <br />If the spill occurs on paved or impermeable surfaces, clean up using "dry" methods (absorbent materials, cat litter and/or rags). Contain <br />the spill by encircling with absorbent materials and do not let the spill spread widely. <br />If the spill occurs in dirt areas, immediately contain the spill by constructing an earthen dike. Dig up and properly dispose of <br />contaminated soil. <br />If the spill occurs during rain, cover spill with tarps or other material to prevent contaminating runoff. <br />Significant/Hazardous Spills <br /> For significant or hazardous spills that cannot be controlled by personnel in the immediate vicinity, the following steps should be taken: <br />Notify the local emergency response by dialing 911. In addition to 911, the contractor will notify the proper county officials. It is the <br />contractor's responsibility to have all emergency phone numbers at the construction site. <br />Notify the Governor's Office of Emergency Services Warning Center, (916) 845-8911. <br />For spills of federal reportable quantities, in conformance with the requirements in 40 CFR parts 110,119, and 302, the contractor <br />should notify the National Response Center at (800) 424-8802. <br />Notification should first be made by telephone and followed up with a written report. <br />The services of a spills contractor or a Haz-Mat team should be obtained immediately. Construction personnel should not attempt to <br />clean up until the appropriate and qualified staffs have arrived at the job site. <br />Other agencies which may need to be consulted include, but are not limited to, the Fire Department, the Public Works Department, the <br />Coast Guard, the Highway Patrol, the City/County Police Department, Department of Toxic Substances, California Division of Oil and Gas, <br />Cal/OSHA, etc. <br />Reporting <br /> Report significant spills to local agencies, such as the Fire Department; they can assist in cleanup. <br /> Federal regulations require that any significant oil spill into a water body or onto an adjoining shoreline be reported to the National Response <br />Center (NRC) at 800-424-8802 (24 hours). <br />Use the following measures related to specific activities: <br />Vehicle and Equipment Maintenance <br /> If maintenance must occur onsite, use a designated area and a secondary containment, located away from drainage courses, to prevent the <br />runon of stormwater and the runoff of spills. <br /> Regularly inspect onsite vehicles and equipment for leaks and repair immediately <br /> Check incoming vehicles and equipment (including delivery trucks, and employee and subcontractor vehicles) for leaking oil and fluids. Do <br />not allow leaking vehicles or equipment onsite. <br /> Always use secondary containment, such as a drain pan or drop cloth, to catch spills or leaks when removing or changing fluids. <br /> Place drip pans or absorbent materials under paving equipment when not in use. <br /> Use absorbent materials on small spills rather than hosing down or burying the spill. Remove the absorbent materials promptly and dispose <br />of properly. <br /> Promptly transfer used fluids to the proper waste or recycling drums. Don't leave full drip pans or other open containers lying around <br /> Oil filters disposed of in trashcans or dumpsters can leak oil and pollute stormwater. Place the oil filter in a funnel over a waste oil-recycling <br />drum to drain excess oil before disposal. Oil filters can also be recycled. Ask the oil supplier or recycler about recycling oil filters. <br /> Store cracked batteries in a non-leaking secondary container. Do this with all cracked batteries even if you think all the acid has drained out. <br />If you drop a battery, treat it as if it is cracked. Put it into the containment area until you are sure it is not leaking. <br />Vehicle and Equipment Fueling <br /> If fueling must occur onsite, use designate areas, located away from drainage courses, to prevent the runon of stormwater and the runoff of <br />spills. <br /> Discourage "topping off" of fuel tanks. <br /> Always use secondary containment, such as a drain pan, when fueling to catch spills/ leaks. <br />Costs <br />Prevention of leaks and spills is inexpensive. Treatment and/ or disposal of contaminated soil or water can be quite expensive. <br />Inspection and Maintenance <br /> Inspect and verify that activity-based BMPs are in place prior to the commencement of associated activities. While activities associated with <br />the BMP are under way, inspect BMPs in accordance with General Permit requirements for the associated project type and risk level. It is <br />recommended that at a minimum, BMPs be inspected weekly, prior to forecasted rain events, daily during extended rain events, and after the <br />conclusion of rain events. <br /> Inspect BMPs subject to non-stormwater discharge daily while non-stormwater discharges occur. <br /> Keep ample supplies of spill control and cleanup materials onsite, near storage, unloading, and maintenance areas. <br /> Update your spill prevention and control plan and stock cleanup materials as changes occur in the types of chemicals onsite. <br />BENCH MARK BASIS OF BEARING REVISIONS <br />REV. # DATE BY DESCRIPTION <br />SHEET <br />2 <br />OF <br />2 <br />EXEMPT FOR DRAINAGE PLAN <br />DRAWING INDEX <br />SHEET 1 TITLE SHEET - TOPOGRAPHIC <br />EROSION AND HORIZONTAL <br />CONTROL PLAN <br />SHEET 2 DRAINAGE PLAN - DETAILS <br />OWNER/DEVELOPER APPROVAL <br />SHEET 1 TITLE SHEET - TOPOGRAPHIC <br />EROSION AND HORIZONTAL <br />CONTROL PLAN <br />SHEET 2 DRAINAGE PLAN - DETAILS <br />KIM TRAN <br />1613 W CHESTNUT AVE <br />SANTA ANA, CA 92703 <br />TEL.: (714) 856 5977 <br />KIM TRAN <br />1613 W CHESTNUT AVE <br />MAIN UNIT AND UNIT 2 & 3 <br />SANTA ANA, CA 92703 <br />ASSUME ELEVATION OF TOP OF CURB AT THE <br />SOUTHEAST CORNER OF PROPERTY SIDEWALK <br />AND STREET ROAD AS AN INITIAL BENCHMARK <br />WITH ELEVATION OF 10.00' (SEE TOPOGRAPHIC <br />HEREON) <br />BEN PHAN, P.E. <br />CE# 57550 <br />EXP. 12/31/2025 <br />10822 WOODWARD LN <br />GARDEN GROVE, CA 92840 <br />TEL.: (714) 251 4537 <br />BENPHANCONSULTANT@GMAIL.COM <br />DRAWN BY:ALBERT LUU <br />CHECKED BY:BEN PHAN <br />PREPARED UNDER THE SUPERVISION OF: <br />BEN PHAN <br />CE NO. 57550, EXP. 12/31/2025 <br />1613 W Chestnut Ave, #2 <br />& #312/12/2024