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HomeMy WebLinkAboutTract Map 32346 Hydrology Study ' ' ' ' HYDROLOGY AND HYDRAULIC CALCULATIONS � i Ol�.—T-T�AC—T-32346 ' THE ' SERAPHINA DEVELOPMENT ' ' ' ' Prepared for: Prepared by: Mr. Scott Carino Apex Engineering PLLC ' Seraphina Development, L.L.C. 2601 South 35 Street, Suite 200 8910 University Center Lane, #690. Tacoma, Washington 98409 San Diego, California 92122 (253) 473-4494 ' (858) 458-3432 File #28632/0 December 20, 2004 Revised: January 23,2006 ' Revised: May 17, 2007 ' Design Engineer: ' Kimberly A o� ..� ' Project Manager: ".=<- Colleen M. Harris � fngi�ring= , ' ' TABLE OF CONTENTS ' Pa�e Project Description ...........................................................................................................................1 ' Hydrology and Hydraulic Calculations ...........................................................................................1 Existing Conditions ..........................................................................................................................1 Off -Site Analysis .............................................................................................................................2 , Proposed Conditions ........................................................................................................................2 ' Apge�dices Appendix A Figures , Vicinity Map/FEMA Maps/Site Plan Appendix B Hydrology Appendix C Hydraulics ' Appendix D Off-Site Exhibits Appendix E Water Quality Calculations ' ' , ' ' ' � � ' � Eng� iaq; ' ' ' PROJECT DESCRIPTION ' This report contains the technical data and background material in support of the permitting of the proposed stormwater drainage facilities for the Seraphina Development (Tract 32346). ' The proposed development consists of a 71-lot single-family residential development. The project is located at the northeast quadrant of the intersection of Nicolas and Joseph Roads in the City of Temecula, Riverside County, California. ' HYDROLOGY AND HYDRAULIC CALCULATIONS ' The hydrology and hydraulic calculations included herein conform to the Riverside County Flood Control and Water Conservation District Hydrology Manual. The calculations for the on- ' site storm system follow the rational method per Riverside County Flood Control and Water Conservation District (IZCFCD). These calculations can be found in Appendix B. ' The stormwater runoff is collected and conveyed to outlet into the Santa Gertrudis Channel. For the tract improvements, a portion of the Santa Gertrudis Channel shall be improved. RCFCD provided a one hundred year flow rate (Q�oo) of 8,000 cfs for this portion of the ' Santa Gertrudis Channel. This flow rate is validated by the USGS stream flow data, which can be found in Appendix B. ' For the USGS data, it should be noted that the gage location is located 1.5 miles downstream of the confluence of the Tucalota Creek with the Santa Gertrudis. This confluence is 1.2+ mile downstream of the site. Therefore, the gage is located 27 miles downstream of the proposed , project. The historical data found dates back to early 1988. The Riverside County Hydrograph data used � for the design of the existing channel was developed between 1984-1986. There is not substantial data to warrant any adjustments to the accepted Q�oo = 8,000 cfs. , It is believed that the actual Q�oo is less than 8,000 cfs and the channel water surface will be less than calculated. Therefore, the backwater effects on the on-site conveyance system are considered to be negligible. The conveyance calculations can be found in Appendix C. ' If backwater does rise to the calculated depth; backflow prevention and adequate overflow routes are provided. � EXISTING CONDITIONS � The existing site is approximately 28.6 acres. The site is occupied by a single-family residence and the land is used as pasture. A majority of the site resides within a zone. A flood plain, refer to Appendix A for mapping. , The site slopes down from north to south and east to west. The Santa Gertrudis Creek flows east to west along the southern portion of the site. ' 1 Eng�ri� � ' ' Nicolas Road borders the site along the south, Joseph Road along the west, Rita/Seraphina and � Jon's Place along the north. Multi-lot single-family residential tracts are located beyond Joseph, Rita Way, and Jon's Place. The tract beyond Jon's Place is completed. The tracts beyond Joseph and Rita Way are under construction. ' An undeveloped/single-family property borders the site to the east. , The east portion of the site is included in 3 easements (2 in favor of the Metropolitan Water District and the 3 in favor of the Southern California Edison). ' The site is covered with brush and pasture grass. OFF-SITE ANALYSIS ' The current site is mostly undevelo ed and used as a asture. P P ' Developed Tracts, in various stages of completion, barder the site to the north and west. , Tracts 26828 and 25004 border the site to the north. Tract 23428 borders the site to the west. Both Tracts 26828 and 25004 outlet storm runoff onto the site. These outlets will be bypassed , across the site by closed conveyance pipe. The area to the south of Nicolas Road is currently undeveloped single family residences. ' According to existing topography provided by RCFCD, runoff from areas to the south flows northward to Nicolas Road and then outlets into the Santa Gertrudis Creek. The mapping and calculations can be found in Appendix G , The existing Santa Gertrudis Creek conveys approximately 8,000 cfs during the 100-year storm event. A majority of the site is contained in a Zone A Flood Hazard Zone, per the FEMA Firm , Map, Appendix A. During a majority of the year, the channel is dry. With the exception of the existing storm outlets, the only area that contributes runoff to the site is ' the uphill (north) portion of the waterline and power easements. This runoff sheet flows along the easements to the Santa Gertrudis Creek, will be picked up by a conveyance system to outlet to Santa Gertrudis Creek. The off-site flow calculations can be found in Appendix D. � PROPOSED CONDITIONS ' The proposed project is to construct a 71-lot single-family residential development on the western portion of the site. The waterline/powerline and eastern portion of the site will not be developed. In order to create developable lots, the Santa Gertrudis Creek is proposed to be ' channelized and a portion of the site filled. This review and permitting is under separate permitting through Riverside County Flood Control. Refer to the attached site plan in Appendix A. � 2 � ,� ' � ' In order to provide runoff treatment, several through curb inlets are provided throughout the site ' to collect and covey storm water to biofilters swales. The swales will treat and convey the storm water into the proposed Santa Gertrudis Channel. ' The swales will not be able to collect and treat all of the site's surface water runoff. Storm inlets will be provided throughout the site to collect storm runoff. The storm inlets will convey the collected storm water to a Hydrodynamic Separator for water quality treatment. Additional � storm inlets are also provided to prevent street flooding during large storm events. Similar to the on-site storm system, the off-site storm system will consist of a combination of ' storm inlets that convey the runoff to bioswales or hydrodynamic separators. All storm lines will outlet to the proposed Santa Gertrudis Channel. ' The conveyance analysis did identify the potential for the water surface elevation to exceed storm structures during the 100-year event. Refer to the narrative attached to the Santa Gertrudis Hydrology data that identifies that the expected W.S. elevation is conservative and that adequate ' backflow prevention and overflow routes are provided. I:�28632\Docs-Reports\Reports�28632_ks_OS-17-07_Rev. Hydrology & Hydraulic Calcs for Tract 32346_Seraphina Development.doc , � , ' ' � � , ' ' 3 Eng� ing; , . , .. . , _ . . . . , . - ', � . . .. , ' - ' . . � . , i � . : � � _ � � , � ' , �_ � � � • ` A�}��l��g� A , , , ' ' � � � FIGURES/, . � � . . , � VICINITY MAP/FElVIA :MAPS/SITE PLAN '� . � : , � . . , , . � , . • - . . :; . � , . ' ':. � . . 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YeS�4 evG��r �esg� ces Surface Water California ��go� � Peak Streamflow for California � USGS 11042900 SANTA GERTRUDIS C NR TEMECULA CA �,������p� ���� ���- ���� ���� Station home page � GO � Output formats � Riverside County, California Table Hydrologic Unit Code 18070302 Gra h � Latitude 33°31'28" Longitude 117°09'S0" NAD27 —�— Drainage area 90 2 square miles Tab separated file Gage datum 1,050 feet above sea level NGVD29 WATSTORE formatted file � Reselect output format Water Gage Stream- Gage Stream- � Water Year Date Height flow year Date Height flow (feet) (cfs) (feet) (cfs) 1988 Jan 17, 1988 4 54 126 1996 Jan 31, 1996 3 29 1,080 � 1989 Feb 04, 1989 4 60 55 0 1997 Jan 12, 1997 2 65 311 1990 Jan 17, 1990 4 80 48 02 1998 Feb 23, 1998 4 36 3,740 � 1991 Mar Ol, 1991 7 10 972 1999 Feb 04, 1999 2 45 182 � 1993 Jan 16, 1993 8 47 7>2006 2000 Feb 21, 2000 2 61 275 ' 1994 Feb 07, 1994 6 10 1076 2001 Jan 11, 2001 2 55 242 � �� 1995 Jan 10, 1995 3 61 1,8106 2002 Nov 24, 2001 2 37 133 � 2003 Mar 15, 2003 3 49 1,4606 C � �� ' �� Peak Streamflow Qualification Codes . 2- Discharge is an Estimate � . 6- Dtscharge affected by Regulation or Dtversion • C- All or part of the record affected by Urbanization, Mining Agncultural changes Channelization, or other � .. _ _ -- _ _ _ _ _ � Questions about data Californ�aT�WISWeb Data_Inquir�es T��p Feedback on this websiteCal�f�rn�a I� WISWeb Maintainer �hplanation of terms Surface Water for Cal►forn�a Peak Streamflow � http //waterdata usgs gov/ca/nw�s/peak� � http //nwis waterdata usgs gov/ca/nwis/peak�site_no=11042900&agency_cd=USGS&for 10/28/2004 , Surface Water for California Peak Streamflow Page 2 of 2 Retrieved on 2004 10-28 20 56 08 EDT ' Department of the Inter�or, U S Geolagua! Sur�ev i1SCS �'t at�.r Resr�urces af Caitfm n�a Pr��acy Statement �� Discla�mer �� Accc.ss�bilitv 1 19 0 9S nadww0l , ' ' ' 1 ' ' ' ' ' , ' ' ' ' ' � http //nwis waterdata usgs gov/ca/nwis/peak�site_no=11042900&agency_cd=USGS&for 10/28/2004 ' ** USGS 11042900 SANTA GERTRUDIS C NR TEMECULA CA Page 1 of 1 ' � �ofa �4teeo � ��4�ra�� c �reu � a�er ���U c�� Site Information � California � go ' USGS 110429Q0 SANTA GERTRUDIS C NR TEMECULA CA � ��������� ��,�� �r��- ���� ���� Station home page � � GO� ' Site Description ' LOCATION Latitude 33°31'28", Longitude 117°09'S0" NAD27, Riverside County, California , Hydrologic Umt 18070302 ' DR.AINAGE AR�A 90 2 square miles GAGE Datum of gage is 1 O50 feet above sea level NGVD29 t 5ITE TYPE Stream / River AVALABLE DATA ' Data Type Begin Date End Date Count ReaE-time This is a real-time srte � Peak streamflovc 1988 01-17 2003-03-15 15 Dail� streamflow 1987 10 O1 2003-09-30 5478 ' OPERATION Record for this site is maintained by the USGS office in California CONTACT INFORMATION � Email questions about this site to Cal�forn�a 1�WISWeb Data Ti�quii �es ' Questions about data Ca I�WI5 D�►t� Inqtiir�cs Top Feedback on this websiteCal�forn�a NWISWeb Maintainer ��anation of terms ** USGS 11042900 SANTA GERTRUDIS C NR TEMECULA CA ' http //waterdata usgs gov/ca/nw►s/nw�sman? Retneved on 2004 10 28 20 56 45 EDT ' De�artmccit of thc ►ntc.r�or, U S Gcolobical Sur� c� LISC S �\ at�� I2esoui ceS of C il�fo� m� Pnv1c.k St�tc,mcnt �� Disclanucr �� Accc.s5�bilitx 1 2 0 94 nadww0l ' ' � ' http //nwis waterdata usgs gov/ca/nwis/nwisman/�site_no=11042900&agency_cd=USGS 10/28/2004 ' Page 1 of 1 g � � n � � � ' "�`., fi.� ��`,.-S ' � � "� `� a �'�`*�� ��e rr �*�°�i'� �' ���.,�. 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C���� �"��E����L�� ���f�Y��r� � ' � � � ' ' ' ' , http //waterdata usgs gov/ca/nwis/dv/�dd_cd=02_00060_00003&format=img&site_no= 10/28/2004 ' Real-time data for USGS 11042900 SANTA GERTRUDIS C NR TEMECULA CA Page 1 of 2 , �a�� ���e�Q�� �e:g c��' c.�-�� U ��. �n ��� Real time Calrforrna go� ' U5GS 11042900 SANTA GERTRUDIS C NR TEMECULA CA ' PROVISIONAL DATA SUBJECT TQ REVISIOIvT �������t� ���� ��r �E�s� ���e Recentdaily �� GO� ' v Current shift-ad�usted rating in tab-separated foi mat These are updated daily and can change often� If you use these ratings it is ' important that you update often so that you have the most current version V4Jhat is a sh�ft-ad�usted rating? � Available Parameters Output format Days � � • Table ; 730 ' � � � � � ' � � � (1 730) C 9et data � ' Discharge, cubic feet per second (DD 0 ' OCTOBER 29 2002 TO OCTOBER 27 2 DAILY MEAN VALUES ' Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec DATE 2002 2002 2002 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 200? ��� 00 00 00 00 28 00 00 00 00 00 00 00 00 00 ' �� 00 00 00 00 00 00 00 00 00 00 00 00 00 00 �� 00 00 00 00 00 00 00 00 00 00 00 00 00 00 i �� 0� 0� �� �� �6 �� �� �� 0� �� �0 �� �� �� ��� 00 00 00 00 00 00 00 00 00 00 00 00 00 00 � �� 00 00 00 00 00 00 00 00 00 00 00 00 00 00 �� 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ' ��� 1 9 00 00 00 00 00 00 00 00 00 00 00 00 00 �� 1 7 00 00 00 00 00 00 00 2 0 00 00 00 00 00 , 10 � 06 00 00 00 00 00 00 00 1 4 00 00 00 00 00 11 � 00 00 00 53 00 00 00 00 00 00 00 00 00 00 12 � 00 00 00 100 00 00 00 00 00 00 00 00 8 7 00 ' 13 07 00 00 36 00 00 00 00 00 00 00 00 8 7 00 0000000aao 14 � 00 00 00 26 00 66 00 00 00 00 00 f 0�� 0 l � ' ����������������������� ' http //waterdata usgs gov/ca/nwis/dv�dd_ed=02_00060_00003&format=html&period=73 10/28/2004 ' Real-time data for USGS 11042900 SANTA GERTRUDIS C NR TEMECLTLA CA Page 2 of 2 � 15 u 00 00 00 4 0 153 22 00 00 00 00 00 00 00 00 16 � 00 57 00 2 2 77 2 7 00 00 00 00 00 00 00 00 ' 1'7 � 00 16 00 39 10 11 00 00 00 00 00 00 00 00 ig � 00 3 2 00 00 1 5 00 00 00 00 00 00 00 00 00 19 � 00 O1 00 00 00 00 00 00 00 00 00 00 00 00 ' 20 00 29 00 6 2 00 00 00 00 00 00 00 00 00 00 ����� 21 � 00 2 7 00 1 3 00 00 00 00 00 00 00 00 00 00 ' 22 � 00 39 00 00 00 00 00 00 00 00 00 00 00 00 � 23 � 00 00 00 00 00 00 00 00 00 00 00 00 00 00 � 24 � 00 00 00 00 00 00 00 00 00 00 00 00 00 00 25 � 00 00 00 265 00 00 00 00 00 00 00 00 00 16 ' �6 � 00 00 00 76 00 00 00 00 00 00 00 00 00 3 4 2'7 � 00 00 00 13 00 00 00 00 00 00 00 00 00 19 , 2g � 00 00 00 1 8 00 00 00 00 00 00 00 00 00 00 29 00 00 00 00 � 00 00 00 00 00 00 00 00 00 00 ` 30 00 00 00 00 � 00 00 00 00 1 3 00 00 00 00 00 31 00 � 00 00 � 00 � 00 � 60 00 � 00 � 00 � COiTNT � 30 31 � 28 31 30 �� 31 ��� 30 31 MAX � 1 9 57 � 265 153 66 �� 2 0��� 8 7 16 ' MIN � 00 00 � 00 00 00 �� 00 ��� 00 00 Questions about data Cal�forn�a NWISWcb Data Inqtni�es T���� I Feedback on this websiteCal�fomia NWISWeb M�intainer Ek��lanation of ternis Daily Data for Cahforma ' http //waterdata usgs gov/ca/nwis/dv� Retrieved on 2004 10 28 20 50 53 EDT De�irtmcnt of thc inter�or U S('colob�cal Sur�c�_ � LJS( S'1� atu_Rc s�tii� t�s c�f C al�fo� ni t Pnv�� St�tcmc�it �� Disclaun�r �� Accc.ss�b�litv 13 104sd ' ' ' ' I http //waterdata usgs gov/ca/nwis/dv�dd_cd=02_00060_00003&format=html&period=73 10/28/2004 ' Page 1 of 1 � ����� r , �� i �"��+� � � c� x ��5� �� ��-�' " "S���i�L�n .� �� �` �`�; ��,���`�` ^ �� ' � � � .> .}€` ,� 5k.c�"`��`-'�� "P� c�r� �, "�.�c�c. '».-v s � � ''�' ^ ..r ``�',+� "�� � � �" �.�5 1 �t�, � „,� �- �"� �� c� �`�� v�s°" US�S 11042��� �,�I�T� GEI�TF�UaIS C Nf� TEMECULA G� i � � � � 500 ' I N � ' � 4oa a � 300 ' ' � U � 2�� 7 C� i � soo t �� �� L F � � ~�'-.��I� � U O ' y � O Oct 21 Oct Z2 Oct 23 Oct 24 Oct 25 Oct 2G Oct 27 Oct 2� UflTES. 10/21l2004 to 10/28/2004 15'07 ' E?{PLflNRTION — DISCHARGE ' � ttEDIHN aRILY STRERHF�ON �RSED �W 15 YERRS OF RECORD h€FFl�f�f�F�E� €�t�-c-E�at-�e �� �� ����c��� G �fi� �����,� �t �� €�� x�E�€�r ' ' ' � � ' , � � , http //waterdata usgs gov/ca/nwis/uv/�dd_cd=02_00060&format=�mg&site_no=1104290 10/28/2004 � Page 1 of 1 � � "� �� �,� � � �.w � � ���� � t � � �� ,�s�� � � � "�� � � � ���� � � ��`� � � r � ,x F�` ��,�^� .r�-�- � �s,� �. ��'� ��.� �#����.,�'�, �A�,�e, �� � U��� 11��42��� ��NT� �EF�TRUCiIS � NI�TEf�EC�L� G� � � o soo � � � L 500 � a� ,, 400 a� ar ' � 300 � ? 200 ' ' � soo � , L u � u U Q ' � � O o�t o� aGr, 09 o�r. ss Oct 23 ORTES• 09/27/2004 to 10l28l2004 15 07 ' E}{PLflNflTIOH — QISCHflRGE � t4E�IfiH �flILY STRERIiFLO�i �FiSE€M Qt� 15 YEAf�� C1F RECORU ' � E�EFE�f ��r�M E�g�r�ar�;� ����c���€��� �#�t� ��.����t...t�� ��t €���€� ' ' ' ' , � , ' i � http //waterdata usgs gov/ca/nwis/uv/�dd_cd=02_00060&format=img&site_no=1104290 10/28/2004 � � COUNTY ' — — _ _ 11070185 SAN BERNARDINO � _ j � _ � �1U25760U � J — 10257499 f 1025600D � ` "p�°�` w + � 10257500 ; 10256060 € �° 11066460 10256550 10257550 ' ' � '� � ��',� � � i � 11072100 10256500 9 �.� p 7720 ' r � _� _€ ` ' ' � € � � '' n LakeMal6ees �,c,� ` A 10 58D00 »0�4000 �,,,� � 0 � � 11070Z70� 1107015 � 10259U50 y � f � �'10259000 0259300 ' � 1106950 � 1025850 1025910 s �'� — 1107050 S + 11070020 - ',, � O � � � � I �? �2592D0 A ' / IAkeElsmor ��t + w ia�ar ` �a N g n' g i ^ 10259540 /1104270 � � 11042800 0 25 0 U , Z�_ .� 104290 maula ��s — — — S � eQ ° 10254050 _ _ _ _ — � 11042�100 ►MPERIAL COUNTY 11043000 — — 11044000 SAN DIEGO COUNTY � 11042631 EXPLANATION , s GAGING STATION � GAGING (TELEPHOT � GAGING STATION (PARTIAL RECORD) DATA COLLECTIO WATER QUALITY � GAGING STATION (TELEPHONE AND SEDIMENT) STATT� � MODEM OR DATA COLLECTION � GAGING (TELEPHON PLATFORM) DATA COLLECTIO � GAGING AND WATER QUALITY WATER QUALITY � (CHEMICAL) STATION TEMPERATURE SF � GAGING (TELEPHONE AND MODEM OR � WATER QUALITY (C DATA COLLECTION PLATFORM) AND STATION WATER QUALITY (CHEMICAL) STATION ��SERVOIR SITE AT , �,d , (TELEPHONE AIv� e DATA COLLECTIO � � Figure 8 Location of discharge and water quality stations in Riverside County ' � ' , ' ' 184 SANTA MARGARITA RIVER BASIN ' 4270 ' t�mm Sp�m sCrcek Utumond Lallc} Luke R00 OUO ac�c fcet 4280 Suue 1999 t Tiu'ulnm Cre�A S�uinei Resenou 93 800 acrc �eet , Since 197� y ' u A290 Su�ua C'ertn d�s Lrd�A � n tichar [ Jr n Rnn ho Cnl Jonra �i �te Aist ut , 43�0 � � � 4�dsurt Cre k Unil Lnkc ' (cme ult 493'Oacre fcrt 424D Crctk 4251 Stnre ]94b 4400 4263 1 , Pe r icn Czck , 4425 Ranft� Cree � � � 4430 ^V Di nian» Ca ryi P nJ�rn n ' Sv din Creek 4435 YuTal4non fia i u and � U '�4ill Inkc 4530 Fnllhr rrk C�e � n �l�z ca � k � 4460 / , } 4505 � � k ��'�`° 4570 Bnsi c ' ti -- -- � 0 A'CILL Lr1 K L � _ Y 4560 � , � � EXPLANATIQN � Q460D Gaging station and abbreviated number 46D0 (Complete number as given m the � station description is 11046000 � � E Stream open flurne or canal showinq � direcUon of flow , 46D5 _ �- Penstock tunnel closed flume or pipe showing direction of flow , Figure 16 Diversions and storage m Santa Marganta River Basin ' USGS DATA REPORT CALIFORNIA WATER RESOURCES 1994 Page 1 of 3 ' �„���� U S Geological Survev � USGS Water Resources Data - California, Water Year 1994 v^ T _ _-_ - -.. _- 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA 1 LOCATION --Lat 33 31 32 long 117 09'36 , in Temecula Grant Riverside County, Hydr bank 1 0 mi upstream from Murrieta Creek 1 5 mi downstream from Tucalota Creek, Temecula ' DRAINAGE AREA --90 1 mi2 (revised) PERIOD OF RECORD --October 1987 to current year Discharge measurements only Octob � REVISED RECORDS --WDR CA-94-1 Drainage area � GAGE --Water-stage recorder Elevation of gage is 1 045 ft above sea level from to REMARKS --No estimated daily discharges Records poor Flow partly regulated by Sk 43 800 acre-ft Flow less than 1 ft3/s from local landscape-irrigation runoff at , schematic diagram of Santa Margarita River basin EXTREMES FOR PERIOD OF RECORD --Maximum discharge 11 500 ft3/s Jan 16 1993 gage ' curve extended above 1 470 ft3/s no flow for most of each year EXTREMES FOR CURRENT YEAR Maximum discharge, 10� ft3/s, Feb 7 gage height 6 10 , DISCHARGE CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1993 TO SEPTE DAILY MEAN VALUES � DAY OCT NOV DEC JAN FEB MAR APR MAY JU 1 00 00 00 00 00 00 86 5 7 0 ' 2 00 00 00 00 00 00 63 03 0 3 00 00 00 00 00 00 00 00 0 4 62 00 00 00 6 4 00 00 00 0 5 1 3 00 00 00 13 00 00 00 0 I 6 1 2 00 00 00 00 00 00 00 0 � 00 00 00 00 30 56 00 00 0 ' 8 00 00 00 00 18 00 00 00 0 9 00 00 00 00 2 1 2 0 00 00 0 10 00 00 00 00 8 0 15 00 00 0 ' 11 51 1 4 00 00 9 5 00 00 00 0 12 00 55 00 00 14 00 00 00 0 13 00 00 00 00 18 00 00 00 0 14 00 1 5 00 00 16 00 00 00 0 � 15 00 00 00 00 5 1 00 00 00 0 16 00 00 00 00 04 00 00 00 0 , 17 06 00 00 00 9 3 00 00 00 0 1g 00 00 00 00 14 00 00 00 0 19 00 00 00 00 17 10 00 00 0 20 00 00 00 00 18 90 00 00 0 , ' http //ca water usgs gov/archtve/waterdata/94/sw/sw11042900 html 10/28/2004 � USGS DATA REPORT CALIFORNIA WATER RESOURCES 1994 Page 2 of 3 21 00 00 00 00 4 0 25 00 00 0 ' 22 00 00 00 00 4 9 00 00 00 0 23 00 00 00 00 6 0 � 9 00 00 0 24 00 00 00 00 3 9 15 00 00 0 , 25 00 00 00 07 Ol 23 06 00 0 26 00 00 00 00 00 10 11 00 0 27 00 00 00 49 00 19 16 00 0 ' 2g 00 00 00 03 - 00 15 30 00 0 29 00 00 00 00 5 3 39 00 0 30 00 00 00 00 --- 00 28 00 0 31 00 --- 00 00 --- 12 --- 00 -- � TOTAL 3 69 3 45 0 00 0 59 204 38 109 18 125 55 5 73 0 0 MEAN 12 11 000 019 7 30 3 52 4 18 18 00 � � 1 3 1 5 00 49 30 23 39 5 7 0 MIN 00 00 00 00 00 00 00 00 0 AC-FT 7 3 6 8 00 1 2 405 217 249 11 0 ' 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA--Continu STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 - 1999 BY WATER YEAR (WY) � OCT NOV DEC JAN FEB MAR APR MAY JU MEAN 022 019 17 18 2 10 6 11 6 8 71 4 75 00 � � 12 11 85 108 54 6 41 8 46 7 28 3 04 (Wy) 1994 1994 1993 1993 1993 1993 1993 1993 199 MIN 000 000 000 000 000 000 000 000 00 (WY) 1988 1988 1990 1991 1988 1988 1989 1988 198 , SUMMARY STATISTICS FOR 1993 CALENDAR YEAR FOR 1994 WATER YEAR � ANNUAL TOTAL 8466 21 452 57 ANNUAL MEAN 23 2 1 29 HIGHEST ANNUAL MEAN , LOWEST ANNUAL MEAN HIGHEST DAILY MEAN 1340 Jan 16 39 Apr 29 LOWEST DAILY MEAN 00 Jan 1 00 Oct 1 ANNUAL SEVEN-DAY MINIMUM 00 Jun 7 00 Oct 18 ' INSTANTANEOUS PEAK FLOW 107 Feb 7 INSTANTANEOUS PEAK STAGE 6 10 Feb 7 ANNUAL RUNOFF (AC-FT) 16790 898 10 PERCENT EXCEEDS 49 1 2 ' SO PERCENT EXCEEDS 00 00 90 PERCENT EXCEEDS 00 00 , � _ � Back to USGS 1994 Cali£ornia Hydrologic Data Re�ort � Water Resources of California or USGS Water Resources Information home ' pa-ge --- The URL for this page is <http //Water wr usgs gov/data94_src> � If you have any questions or comments about this document contact � http //ca water usgs gov/archive/waterdata/94/sw/swl 1042900 html 10/28/2004 � USGS DATA REPORT-CALIFORNIA WATER RESOURCES 1994 Page 3 of 3 ' Dale Alan Cox <dacox�usqs uo�> , � � � ' � � � ' � ' , ' � � � , http //ca water usgs gov/archive/waterdata/94/sw/swl 1042900 html 10/28/2004 , 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1996 WY Page 1 of 3 Cbr�.rta �3 x"p r h „� Y` � T v ., x � }a °� ,� + "�'�. ��, � q � �� �� � � � �, � �x��������������� ��� �� ����M���� s' � � � 6 � � `� ���.'�"�k �ti ^� � �� 1996 Cahfornia Hydrologic Data Report � _ _ _ _ _ _ _ _ _ __ _ -- _ -- �- _ __ , 11092900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA LOCATION --Lat 33 31'28 , long 117 09 50 , in Temecula Grant Riverside County, Hydr bank 0 85 mi upstream from Murrieta Creek, 1 65 mi downstream from Tucalota Creek � Temecula DRAINAGE AREA --90 2 mi � PERIOD OF RECORD --October 1987 to current year Discharge measurements only Octob REVISED RECORDS --WDR CA-99-1 Drainage area WDR CA-96-1 1993(M) � GAGE --Water-stage recorder and concrete control Elevation of gage is 1 045 ft abo topographic map Prior to Oct 11 1994 at site 800 ft upstream at different da � REMARKS --Records good Flow partly regulated by Skinner Reservoir capacity 43 80 diagram of Santa Margarita River basin � EXTREMES FOR PERIOD OF RECORD --Maximum discharge, 7 200 ft estimated (revised) 8 47 ft site and datum then in use based on critical depth computation no flow REVISIONS --The maximum discharge for the 1993 water year has been revised to 7,200 � height 8 47 ft site and datum then in use ' DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 1995 TO SEPTE DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JU ' 1 00 00 00 00 27 00 00 00 0 2 00 00 00 00 26 00 00 00 0 , 3 00 00 00 00 00 00 00 00 0 9 00 00 00 00 00 00 00 00 0 5 00 00 00 00 00 79 00 00 0 � 6 00 00 00 00 00 00 00 00 0 7 00 00 00 00 00 00 00 00 0 8 00 00 87 00 00 00 00 00 0 � 9 00 00 1 3 00 00 00 00 00 0 10 00 00 1 9 00 00 00 00 00 0 11 00 00 95 00 00 00 00 00 0 � 12 00 00 1 6 00 00 00 00 00 0 13 00 00 2 5 00 00 11 00 00 0 14 00 00 1 6 00 00 1 2 00 00 0 15 00 00 1 1 00 00 00 00 00 0 � 16 00 00 00 00 00 00 00 00 0 17 00 00 00 00 00 00 00 00 0 � 18 00 00 00 00 00 00 00 00 0 19 00 00 00 00 00 00 00 00 0 , http //ca water usgs gov/archive/waterdata/96/11042900 html 10/28/2004 1 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1996 WY Page 2 of 3 2� �� �� �� �� 4� �� �� �� � t 21 00 00 00 1 5 25 00 00 00 0 22 00 00 00 87 1 1 00 00 00 0 23 00 00 00 00 00 00 00 00 0 � 24 00 00 00 00 00 00 00 00 0 25 00 00 00 00 7 1 00 00 00 0 � 26 00 00 00 00 4 0 00 00 00 5 27 00 00 00 00 13 00 00 00 0 28 00 00 00 00 9 8 00 00 00 0 29 00 00 00 00 06 00 00 00 0 � 30 00 - 00 00 00 =_= 00 _00 00 _0 31 00 00 69 00 00 � TOTAL 0 00 0 00 11 32 �1 37 82 79 12 99 0 00 0 00 0 5 MEAN 000 000 37 2 30 2 85 42 000 000 02 MAX 00 00 2 5 69 27 11 00 00 5 MIN 00 00 00 00 00 00 00 00 0 , AC-FT 00 00 22 142 164 26 00 00 1 �� M � � 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA--Continu ' STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 - 1996 BY WATER YEAR (WY) � OCT NOV DEC JAN FEB MAR APR MAY JU MEAN 017 017 22 19 3 11 2 15 1 8 53 4 15 00 MAX 12 11 85 108 54 6 50 7 96 7 28 3 04 � (WY) 1994 1994 1993 1993 1993 1995 1993 1993 199 MIN 000 000 000 000 000 000 000 000 00 (WY) 1988 1988 1990 1991 1988 1988 1989 1988 198 � SUMMARY STATISTICS FOR 1995 CALENDAR YEAR FOR 1996 WATER YEAR ANNUAL TOTAL 4199 70 179 69 � ANNUAL MEAN 11 5 49 HIGHEST ANNUAL MEAN LOWEST ANNUAL MEAN ' HIGHEST DAILY MEAN 392 Mar 11 69 Jan 31 LOWEST DAILY MEAN 00 Jan 1 00 Oct 1 ANNUAL SEVEN-DAY MINIMUM 00 Feb 2 00 Oct 1 INSTANTANEOUS PEAK FLOW 1080 Jan 31 , INSTANTANEOUS PEAK STAGE 3 29 Jan 31 ANNUAL RUNOFF (AC-FT) 8330 356 10 PERCENT EXCEEDS 37 00 � 50 PERCENT EXCEEDS 00 00 90 PERCENT EXCEEDS 00 00 � 1 Back to 1996 Cal►fornia H�droloaic Data Repo� t Inde� iJSGS Vdatci Re�owccs of Cal�forn�a � Seai c.h � USGS llcadquarterti � BiologX� Geology � Mapp�ng � Water � http //ca water usgs gov/archive/waterdata/96/11042900 html 10/28/2004 � 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1996 WY Page 3 of 3 Contact webmasterr matidcascr �vr usgs �o� � Last modified Wed Nov 25 il 51 44 PST 1998 � � � ' � � , � � i 1 � � � 1 i � http //ca water usgs gov/archive/waterdata/96/11042900 html 10/28/2004 � 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1997 WY Page 1 of 2 s.�a, �,r �� F`"� � *o ��-s�..�����'�'y��'-�i`,�k¢�� +x'`�,� �'�,�� �'�^�.^a`,�":�� -�r�-�`��4F`�' � � �� �� � ,.� a�� �' �� ��"�,���� ����� ` �� ���-��"�"-� �, �,"�a °a ���e �fi'k�'� -o �t^T�S4„f��..� '� �'�? � a. � .�.. .�4.r.an a � 1997 Califorma Hydrologic Data Report � _ _� � � � ___ -- -- _ -_ _ _ ---- __ _ -- _ ' 11092900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA LOCATION -Lat 33 31 26 long 11709 50 an Temecula Grant Riverside County Hydrologic Unit 18070302 on left from Muzrieta Creek 1 65 mi downstream from Tucalota Czeek and 2 2 mi northeast of Temecula � DRAINAGE AREA -90 2 mi PERIOD OF RECORD -October 1967 to current year Dischazge measurements only October 1991 to September 1992 REVISED RECORDS -WDR CA-99-1 Diainage area WDR CA-96-1 1993(M) GAGE -Water-stage recorder crest-stage gage and concrete control Elevation of gage is 1 095 ft above sea le � to Oct 11 1999 at site B00 ft upstzeam at different datum REMARKS -Records fair Flow partly regulated by Skinner Reservoir capacity 93 800 acre-ft See schematic di Basin EXTREMES FOR PERIOD OF RECORD -Maxamum discharge 7 200 ft estimated Jan 16 1993 gage height 8 4'7 ft in use based on ciitical depth computation no flow foi most of each year ' DISCHARGE CUBIC FEET PER SECOND WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAILY MEAN VALOES DAY OCT 140V DEC JAN FEB MAR APR MAY JON JUL AUG SE � 1 00 00 00 00 00 00 00 00 DO 00 00 0� Z 00 59 00 00 00 00 00 00 00 DO 00 Oi 3 00 21 00 1 2 00 00 00 00 00 00 DO 0 q 00 00 DO 00 00 DO 00 DO 00 00 00 Oi � 5 00 00 00 16 00 00 00 00 00 00 00 0� 6 00 00 00 56 OD 00 00 00 00 00 QO Oi � o0 00 0o s o 0o z� o0 00 00 00 00 0 g 00 00 00 3 0 00 34 00 00 00 00 00 0� � 9 00 00 21 00 OD 00 00 00 00 00 00 0� 10 00 00 16 00 3 3 DD 00 00 00 00 00 0� 11 00 00 23 00 11 00 00 00 00 a0 00 0 lZ 00 DO 2 9 96 1 1 OD 00 00 00 00 00 0� � 13 00 00 00 56 00 00 00 00 00 00 00 Oi 19 00 00 DO 9 4 00 00 00 00 DO 00 00 0� 15 00 00 00 27 00 00 00 00 00 00 00 Oi 16 00 00 00 96 00 00 00 00 00 00 00 0� 17 00 00 00 4 9 00 00 00 00 00 00 00 Oi � 18 �� �� �� �� �� �� �0 �� �� �� �� �� 19 00 00 00 DO 00 00 00 00 00 00 00 0� Zp 00 00 00 00 00 00 00 00 00 00 00 0 21 00 32 00 00 DO 00 00 00 00 00 00 0� , Zz 00 25 11 00 00 00 00 00 00 00 00 Oi 23 00 18 29 23 00 00 00 00 00 00 DO 0� Zq 00 00 00 00 00 00 00 DO 00 00 00 0� 25 00 00 00 19 00 00 00 00 00 00 00 12 � 26 00 00 00 95 00 00 00 DO 00 00 00 5 4 27 00 00 00 1 4 00 00 00 00 00 00 00 0 zg 00 07 2 6 DO 00 00 00 OD 00 00 00 2 7 z9 00 03 00 00 --- 00 00 00 00 00 00 1 30 1 � 00 00 00 -- 00 00 00 00 00 00 0 � 31 43 -- 00 00 -- 00 -- 00 --- 00 00 - TOTAL 2 13 58 OB 76 "79 306 96 15 90 61 00 D 00 0 00 0 00 0 00 0 00 20 2 MEAN 069 1 99 2 98 9 90 55 1 97 000 000 000 000 000 6 MAX 1 7 32 23 58 11 34 00 00 00 00 00 1 , MIN 00 00 00 00 00 00 00 00 00 00 00 0� AC-FT 9 2 115 152 609 31 121 00 00 00 00 00 9 � STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 1997 BY WATER YEAR (WY) OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SE ' MEAN 023 23 97 16 3 10 0 13 6 7 58 3 69 007 009 000 07 MAX 12 1 94 2 46 108 59 6 50 7 46 7 28 3 049 035 000 6 , http //ca water usgs gov/archive/waterdata/97/11042900 html 10/28/2004 ' 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1997 WY Page 2 of 2 (WY) 1999 1997 1997 1993 1993 1995 1993 1993 1993 1995 1986 199 � MIN 000 000 000 000 D00 000 000 000 OOD 000 000 OOi (WY) 1966 1988 1990 1991 1986 1988 1989 1988 1966 1986 198B 196 SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1988 - 199 � ANNUAL TOTAL 305 32 540 52 ANNUAL MEAN 63 1 98 9 46 HIGHEST ANNUAL MEAN 23 2 199 LOWEST ANNUAL MEAN 006 199� HIGHEST DAILY MEAN 69 Jan 31 SB Jan 13 1390 Jan 16 199 , LOWEST DAILY MEAN 00 Jan 1 00 Oct 1 00 Oct 1 196 ANNUAL SEVEN DAY MZNIMUM 00 Jan 1 DO Oct 1 00 Oct 1 198 INSTANTANEOUS PEAK FLOW 311 Jan 12 7200 Jan 16 199 INSTANTANEOUS PEAK STAGE 2 65 Jan 12 8 97 Jan 16 199 � ANNOAL RONOFF (AC-FT) 606 1070 3250 10 PERCENT EXCEEDS 00 19 5 0 50 PERCENT EXCEEDS 00 00 00 90 PERCENT EXCEEDS 00 00 00 � � B1c1. to 1997 California H d} rologic, ll�ta R�.port Index � USGS Water Rcsources of California � USGS Hcadqua�tc�s � B�oloav � Gcolo � Ma�p�nt � Water Contact tircbmaster(a�maildcascr�rus�s�,o� � Last modified Wed Mar 10 14 07 19 PST 1999 , � � ' � � � � � � http //ca water usgs gov/archive/waterdata/97/11042900 html 10/28/2004 � 11042900 SANTA GERTRUDIS CREEK NEAR TEMECUI.A, CA - 1998 WY Page 1 of 2 � � ��y�,�� F,�,'�'���,'L��v�S r�,���� � �� .� � ��',^s�, �-�.� f�� �.�r' �^Sh" "� .�.. �'a"'`s� � � ". �"' t"�'� � �?"' y, ���� �+�����,� ��� � �"��.`�. � � v � �r �— .a � � ��� ��� �'��� � �. 3"-�,-"� ���-�'c�"� �' ��.�. -��-.-.�'�`- �� .�.� �'-��-� �,�".. �� 199g Cahfornia Hydrologic Data Report � 110929D0 SANTA GERTRUDIS CREEK NEAR TEMECULA CA � LOCATION -Lat 33 31 26 long 11709 50 in Temecula Giant Riverside County Hydrologic Unit 18070302 on left 1 65 mi downstream from Tucalota Creek and 2 2 mi northeast of Temecula DRAINAGE AREA -90 2 mi � PERIOD OF RECORD -October 1987 to current year Discharge measurements only October 1991 to September 1992 REVISED RECORDS -WDR CA-99-1 Drainage area WDR CA-96-1 1993(M) GAGE -Water-stage recorder crest-stage gage and concrete control Elevation of gaqe is 1 095 ft above sea le 1999 at site 600 ft upstzeam at different datum REMARKS -Records pooz Flow partly regulated by Skinner Reservoir capacity 93 B00 acre-ft See schematic di � EXTREMES FOR PERIOD OF RECORD -Maximum discharge 7 200 ft estimated Jan 16 1993 gage height B 97 ft critical depth computation no flow for most of each year DISCHARGE CUBIC FEET PER SECOND WATER YEAR OCTOBER 199"] TO SEPTEMBER 1996 ' DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SE 1 00 BO 06 00 00 15 55 00 00 OD 00 Di � 2 00 00 00 00 00 15 7 8 00 00 00 00 0 3 00 00 00 2 0 67 16 1 3 00 OD 00 00 0� 9 00 00 00 2 1 26 22 00 00 00 OD 00 0 5 29 00 00 99 53 28 6 4 19 00 00 00 0 6 00 00 125 00 26 46 7 0 19 00 00 OD 0� � 7 00 00 7 9 00 6 2 e90 2 0 00 00 00 00 Di B 00 00 3 6 00 212 e39 00 00 00 00 00 0� 9 00 00 3 9 99 20 e39 9 7 00 00 00 00 0� 10 00 70 2 3 96 00 e29 7 7 00 00 00 00 0 , 11 00 00 00 3 1 00 32 21 00 00 00 00 0� 12 00 00 64 3 4 00 29 30 14 00 00 00 0� 13 00 6 3 OB 70 O1 29 e15 9 1 00 00 00 0 19 00 49 00 00 133 e23 e12 3 5 00 00 00 Oi � 15 00 00 00 00 22 e27 e10 13 00 00 00 Oi 16 00 00 99 00 1 5 e16 00 e10 00 00 00 0� 17 00 00 00 00 176 e23 00 e9 0 00 00 00 0� 16 00 00 8 6 00 11 e23 00 e7 5 00 00 00 0� 19 00 00 61 1 2 9 9 e19 00 e5 0 00 00 00 0� � 20 00 00 00 00 30 2 8 00 77 00 00 00 0� 21 00 00 00 00 9 3 00 00 00 00 00 00 Oi 22 00 DO 00 00 297 00 00 00 00 00 00 0� 23 00 00 00 00 995 00 00 00 00 00 00 0� � 29 00 00 00 00 669 00 00 00 00 00 00 0 25 00 00 00 2 0 19 11 00 00 00 00 00 Di 26 00 11 00 2 9 19 2 0 00 00 00 00 00 0 27 00 10 00 97 16 03 00 00 00 00 00 0 28 00 00 DO 00 15 19 00 00 00 00 00 Oi ' Z9 00 - 00 00 3 6 =__ 90 - 00 00 - 00 00 00 _0� 30 00 3 8 06 00 17 00 00 00 00 00 Oi 31 00 00 00 46 00 00 00 � TOTAL 0 29 33 09 152 99 212 91 2177 99 639 83 179 90 99 67 0 00 0 00 0 00 0 0 MEAN 009 1 10 9 93 6 BS 77 8 20 S 6 00 3 22 000 000 000 OOi MAX 29 11 125 96 669 96 55 19 00 00 00 0 MIN 00 00 00 00 00 00 00 00 00 00 00 0� AC FT 6 66 303 921 9320 1260 357 196 00 00 00 0� � _ _ _ _ _ _ STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 1998 BY WATER YEAR (WY) � OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SE MEAN 021 32 92 1� 1 16 7 14 3 7 92 3 69 006 008 000 D6 MAX 12 1 99 4 93 108 77 8 50 7 96 7 26 3 099 035 000 6 (WY) 1994 1997 1996 1993 1998 1995 1993 1993 1993 1995 1988 199 � MIN 000 000 000 000 000 000 000 000 000 000 000 OOi (WY) 1986 1986 1990 1991 1968 1968 1969 1988 1966 196B 1968 198 i http //ca water usgs gov/archive/waterdata/98/11042900 html 10/28/2004 � 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA 1998 WY Page 2 of 2 SUMMARY STATZSTICS FOR 1997 CALENDAR YEAR FOR 1996 WATER YEAR WATER YEARS 198B - 199 , ANNUAL TOTAL 569 89 3990 77 ANNUAL MEAN 1 62 9 56 4 99 HIGHEST ANNUAL MEAN 23 2 199 LOWEST ANNUAL MEAN 006 199� , HIGHEST DAILY MEAN 125 Dec 6 664 Feb 24 1390 Jan 16 1 LOWEST DAILY MEAN DO Jan 1 00 Oct 1 00 Oct 1 1 ANNUAL SEVEN-DAY MINIMUM 00 Jan 26 00 Oct 6 00 Oct 1 1 INSTANTANEOUS PEAK FLOW 3790 Feb 23 72DD Jan 16 1 INSTANTANEOUS PEAK STAGE 4 36 Feb 23 6 97 Jan 16 1 ' ANNUAL RUNOFF (AC-FT) 1170 6920 3620 10 PERCENT EXCEEDS 59 19 7 0 50 PERCENT EXCEEDS 00 00 00 90 PERCENT EXCEEDS 00 00 DO ' e Estimated ' 1998 California H ydrol og ic Data Repo Index USGS Water Resoui ces of Cal�fornia ' Contact webmaster i�m�ildcascr wr usgs �ov Last modified Wed Aug 4 09 40 26 PDT 1999 ' ' � ' , ' , 1 ' ' ' ' http //ca water usgs gov/archive/waterdata/98/11042900 html 10/28/2004 , 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1999 WY Page 1 of 2 � ��� ' 1999 California Hydrologic Data Report , 110929DD SANTA GERTRUDIS CREEK NEAR TEMECULA CA ' LOCATION -Lat 33 31 26 long 117 09 50 in Temecula Grant Riverside County Hydrologic Unit 18070302 on le£t bank 0 BS mi upstream f=om Murrieta Creek 1 65 mi downstream from Tucalota Cieek and 2 2 m northeast of Temecula DRAINAGE AREA -90 2 mi ' PERIOD OF RECORD -October 1987 to current year Discharge measurements only October 1991 to Septembet 1992 REVZSED RECORDS -WDR CA-99-1 Dzainage area WDR CA-96-1 1993(M) GAGE -Water-stage recorder crest-stage gage and concrete control Elevation of qage is 1 045 ft above sea level from topogiaphic map Ptior to Oct 11 1999 at site BDO ft upstream at different datum REMARKS -Records fair Flow partly regulated by Skinner Reservoir capacity 93 600 acre-ft See schematic ' dlagtam of Santa Margarita River Basin EXTREMES FOR PERIOD OF RECORD -Maximum discharge 7 200 ft estimated Jan 16 1993 gage height 8 97 ft site and datum then in use based on critical depth computation no flow for most of each year DISCHARGE CUBIC FEET PER SECOND WATER YEAR OCTOBER 1996 TO SEPTEMBER 1999 ' DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SE ' 1 00 00 00 00 00 00 � 0 00 00 00 00 0� 2 00 00 00 00 00 00 1 9 00 2 3 00 00 Oi 3 00 00 00 00 00 00 54 00 00 00 00 0 9 00 00 00 00 21 00 35 00 00 00 00 0 5 00 00 1 5 00 12 00 00 9 5 00 00 00 0 ' 6 00 00 6 7 00 4 1 00 91 17 00 00 DO Oi 7 00 00 2 2 00 00 00 37 11 00 00 00 0� 6 00 78 00 00 00 00 10 00 00 12 00 0 9 00 00 00 00 3 1 00 00 00 00 00 00 0� 10 00 00 e DO 00 84 00 00 00 00 00 00 0� � 11 00 00 e 00 00 OD 00 1 7 00 00 00 00 0� 12 00 00 e 00 00 00 00 66 00 00 00 00 0� 13 00 00 e 00 00 00 00 13 00 00 00 00 Oi ' 19 00 00 e 00 00 DO 00 00 00 00 00 00 Oi 15 00 00 e 00 00 00 1 9 00 00 00 00 00 0 16 00 00 00 00 00 00 00 00 00 00 00 0� 17 00 00 00 00 00 00 00 DO 00 00 00 Oi ia o0 00 00 00 00 00 00 00 00 00 00 0 � 19 00 00 26 00 00 DO 00 00 00 00 00 0� 20 00 00 12 00 00 00 00 00 DO 00 00 0� 21 00 00 00 00 00 00 00 00 00 00 00 0 22 00 00 00 DO 00 00 00 00 00 00 00 0� ' 23 00 00 00 00 00 00 00 DO 00 00 00 0 24 00 00 00 00 00 00 00 00 DO 00 00 Oi 25 00 00 00 2 2 00 00 00 00 00 00 00 0� 26 00 DO 00 19 00 00 00 00 00 00 00 0� 2� o0 00 0o is o0 00 00 00 00 00 00 0� ' ze oo z6 00 00 _oo 00 00 00 00 00 00 0� z9 0o io 00 00 00 00 00 00 00 00 0� 30 00 00 DO 00 00 00 00 00 OD 00 0� 31 00 -- 00 9 6 -- DO - 00 -- 00 00 - ' TOTAL 0 00 36 78 12 78 90 BO 91 09 1 90 139 90 32 50 2 30 12 00 0 00 0 Oi MEAN 000 1 23 41 1 32 1 97 061 9 65 1 OS 077 39 000 00� MAX 00 26 8 7 19 21 1 9 66 17 2 3 12 00 0� MIN 00 00 00 00 00 00 00 00 00 00 00 0� t AC-FT M 00 73 _25 � 81 81 3 B W N � 276 69 4 6 29 T 00 �0� STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1968 - 1999 BY WATER YEAR (WY) ' OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SE MEAN 020 90 87 15 7 15 3 13 0 7 17 3 91 013 092 000 06 MAX 12 1 94 9 93 108 77 B 50 7 96 7 26 3 07� 39 000 6 (WY) 1999 1997 1996 1993 1998 1995 1993 1993 1999 1999 1986 199 ' MIN 000 000 000 000 000 000 OOD 000 000 000 D00 00� (wY) 1968 1988 1990 1991 1988 1988 1989 1986 1968 1988 1966 196 ' http //ca watei usgs gov/archive/waterdata/99/11042900 html 10/28/2004 � 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA, CA - 1999 WY Page 2 of 2 SUMMARY STATISTICS FOR 1998 CAI,ENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1988 - 199 ' ANNUAL TOTAL 3359 O1 319 50 ANNUAL MEAN 9 19 86 9 62 HIGHEST ANNUAL MEAN 23 2 199 LOWEST ANNUAL MEAN 006 199� , HIGHEST DAILY MEAN 669 Feb 24 68 Apr 12 1390 Jan 16 1993 LOWEST DAILY MEAN 00 Jan 1 00 Oct 1 DO Oct 1 1987 ANNUAL SEVEN-DAY MINIMUM 00 Apr 16 OD Oct 1 00 Oct 1 � 1987 ZNSTANTANEOUS PEAK FLOW 162 Feb 4 7200 Jan 16 1993 INSTANTANEOUS PEAK STAGE 2 95 Feb 9 B 47 Jan 16 1993 ' ANNUAL RUNOFF (AC-FT) 6650 639 3390 10 PERCENT EXCEEDS 19 00 5 B 50 PERCENT EXCEEDS DO 00 00 90 PERCENT EXCEEDS 00 00 00 , e Estimated , _ _ ' Bacl. to 1999 Califot nia H d�g�c Data Report Index USGS ��'ater Resources of C�l�fonua , USGS Headc�uarteis � Biolo�v � Geolo�v � Map�in� � Watei Contact ��ebmaster a maildcascr rFr usgs go� ' Last modified Wed Jun 14 11 27 15 PDT 2000 ' � ' � ' ' ' , ' http //ca water usgs gov/archive/waterdata/99/11042900 html 10/28/2004 , SANTA MARGARITA RIVER BASiN 183 ' 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA LOCATION —Lat 33 31 28 long 117 09 50 m Temecula Grant R��ers�de Coiuiri Hydrologic Un�t 18070302 on left bank, 0 85 rru upstream from Mumeta Creek 1 65 rru downsueam from Tucalota Creek, and 2 2 m� northeast of Temecula DRAINAGE AREA —90 2 m� ' PERIOD OF RECORD —October 1987 to current year Discharge measurements only October 1991 to September 1992 REVISED RECORDS —WDR CA 94 1 Dramage area WDR CA 96 ] 1993(M) GAGE —Water stage recorder crest stage gage and concrete control Elevat�on of gage is 1 045 ft above sea level from topograplvc map Pnor ' to Oct I 1 1994 at s�te 800 ft upstream at different dacum REMARKS —Records fair Flow partly regulated by Slanner Reservmr capac�ty 43 800 acre ft See schematic diagram of Santa Marganta R��er B3sm EXTREMES FOR PERIOD OF RECORD —Maximum dtscharge 7 200 ft estimated Jan 16 1993 gage height 8 47 ft s�te and datum then ' in use based on cntical depth computat�on no flow for most of each year DISCHARGE CUBIC FEET PER SECOND WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES , DAY OCT NOV DEC JAN FEB MAR APR MAY JUN NL AUG SEP 1 00 00 00 DO 00 00 DO 00 00 00 00 00 z o0 00 00 00 00 00 00 00 00 00 00 00 ' s o0 00 00 00 00 00 00 00 00 00 00 00 a o0 00 00 00 00 00 00 00 00 00 00 00 s o0 00 00 00 0o io 00 00 00 00 00 00 6 00 00 00 00 0o i o 00 00 00 oa o0 00 � o0 00 00 00 0o io 00 00 00 00 00 00 ' 8 00 00 00 00 DO 5 D 00 00 00 00 00 00 9 DO 00 00 00 00 33 00 OD 00 OD 00 00 io 00 00 00 0o i s o0 00 00 00 00 00 00 11 00 00 00 00 27 DO DO 00 00 00 00 00 , 12 00 00 00 00 14 00 00 OD 00 00 00 OD 13 00 0� 00 DO 6 7 DO 00 00 00 DO 00 00 14 00 00 00 00 1 B 00 00 00 00 00 00 00 is o0 00 00 00 00 00 00 00 00 00 00 00 ' 16 00 00 DO 00 6 2 00 00 00 00 00 00 00 17 00 00 DO 00 6 4 00 62 00 00 00 00 OD 18 00 00 00 OD 00 00 1 2 00 00 00 00 00 19 00 00 00 00 00 00 DO DO 00 00 00 00 20 00 00 00 DO 30 00 00 00 00 00 00 00 ' Zi o0 00 00 00 �� o0 00 00 00 00 00 00 zz o0 00 00 00 6 3 00 00 00 00 00 0o io 23 00 00 00 OD 29 DO 00 OD 00 00 00 31 24 00 DO 00 00 3 6 00 00 00 00 00 00 00 25 00 00 00 00 B1 00 DO DD DO 00 00 00 � 26 DO 00 DO 00 44 00 00 DO 00 00 00 00 27 00 00 00 00 76 00 00 00 00 00 00 00 28 00 00 DO 00 42 00 00 00 00 00 OD 00 29 00 00 00 DO OD 00 00 00 00 00 00 00 � 30 00 00 00 00 00 00 00 00 00 00 00 31 00 00 00 00 OD 00 00 TOTAL 0 00 0 00 0 00 0 DO 180 20 16 43 2 02 0 00 0 00 0 00 D 00 0 41 MEAN 000 000 D00 000 6 21 53 067 000 OOD 000 000 014 ' MAX DO 00 DO 00 77 10 1 2 00 00 00 00 31 MIN 00 00 00 00 00 00 DO OD 00 00 00 00 AC FT 00 00 00 00 357 33 4 0 00 00 00 00 8 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 2000 BY WATER YEAR (WY) ' MEAN O18 37 80 14 4 14 6 12 0 6 58 3 12 012 039 000 059 MAX 12 1 94 9 93 108 77 8 50 7 46 7 26 3 077 39 000 67 (WY) 1994 1997 1998 1993 1998 1995 1993 1993 1999 1999 1988 1997 MIN D00 000 000 000 000 000 000 000 000 000 000 000 (WY) 1988 1988 1990 1991 1988 1988 1989 1988 1988 1988 1988 1988 ' SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1988 20�0 ANNUAL TOTAL 269 94 199 06 ANNUAL MEAN 74 54 4 28 ' HIGHEST ANNUAL MEAN 23 2 1993 LOWEST ANNUAL MEAN 006 1990 HIGHEST DAILY MEAN 66 Apr 12 77 Feb 21 1340 Jan 16 1993 LOWEST DAILY MEAN 00 Jan 1 00 Oct 1 00 Oct 1 1987 ANNUAL SEVEN DAY MINIMUM 00 Jan 1 00 Oct 1 DO Oct 1 1987 ' INSTANTANEOUS PEAK FLOW 275 Feb 21 e7200 Jan 16 1993 INSTANTANEOUS PEAK STAGE 2 61 Feb 21 B 47 Jan 16 1993 ANNUAL RUNOFF (AC FT) 535 395 3100 10 PERCENT EXCEEDS 00 00 4 3 50 PERCENT EXCEEDS 00 00 DO ' 90 PERCENT EXCEEDS 00 00 00 e Estimated ' 194 SANTA MARGARITA RIVER BASIN ' 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA LOCATION —Lat 33 31 28 long 117 09 50 m Temecula Grant Rn e� �ide Cuui � Hydrolog�c U�it 18070302 on left bank 0 85 nu upsveam from Mumeta Creek 1 65 m� downsveam from Tucalota Creek and 2 2 cru northeast of Temecula , DRAINAGE AREA —90 2 m� PERIOD OF RECORD —October 1987 to current year D�scharge measurements only October 1991 to September 1992 REVISED RECORDS —WDR CA 94 1 Dramage area WDR CA 96 1 1993(M) ' GAGE —Water stage recorder crest stage gage and concrete control Elevahon of gage �s 1 045 ft above sea level from topographic map Pnor to Oct 11 1994 at site 800 ft upstream at different datum REMARKS —Records fazr F7ow partly regulated by Slanner Reservoir capac�ty 43 800 acre ft See schematu diagram of S m� 4i �r ar�ta Rn r 13 t ii ' EXTREMES FOR PERIOD OF RECORD —Maximum discharge 7 200 ft�/s estimated Jan 16 1993 gage he�ght 8 47 ft site and datum then tn use based on cnucal depth compu[ation no flow for most of each year DISCHARGE CUBIC FEET PER SECOND WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 � DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 00 OD 00 00 00 2 6 00 00 00 DO 00 00 ' z o0 00 00 00 0o s� ao 00 00 00 00 00 3 00 00 00 00 00 oa o0 00 00 00 oo 00 a o0 00 00 00 00 00 00 00 00 00 00 00 s o0 00 00 00 00 00 00 00 00 00 00 00 ' 6 00 00 00 00 0o i 6 00 00 00 00 00 00 7 00 00 00 00 00 78 3 3 00 00 00 OD 00 B 00 00 00 57 00 00 20 00 00 00 00 00 9 00 00 00 39 00 17 00 00 00 00 00 00 10 00 00 00 28 DO 16 00 00 00 00 00 00 ' 11 00 96 00 50 00 3 9 00 00 00 OD OD 00 12 00 00 00 5 0 3 0 00 00 00 00 00 00 00 13 00 00 00 07 36 00 00 00 00 00 00 00 14 00 00 00 00 12 00 00 00 00 00 00 00 15 00 00 00 00 17 00 00 00 00 00 00 00 ' 16 00 00 00 00 00 00 00 00 00 00 00 00 17 00 00 00 00 00 00 00 00 00 00 00 00 16 00 00 00 00 00 00 00 00 00 00 00 00 19 00 OD 00 00 12 00 00 00 00 00 00 00 � zo 00 00 00 0o i s o0 00 00 00 00 00 00 zi o0 00 00 00 00 0o z � o0 00 00 00 00 zz o0 00 00 00 00 00 oz o0 00 00 00 00 zs o0 00 00 0o i s o0 00 00 00 00 00 00 z4 00 00 00 00 93 00 00 00 00 00 00 00 ' zs o0 00 00 0o as o0 00 00 00 00 00 00 26 27 00 00 2 3 32 00 DO 00 00 00 00 00 27 00 00 00 71 56 00 00 00 00 00 00 00 26 00 00 00 32 30 00 00 00 00 00 00 00 1 29 30 - 00 00 00 -_- 00 - 00 00 _00 00 00 - 00 30 1 1 00 00 00 00 00 00 00 00 00 00 31 00 00 00 00 00 00 00 TOTAL 1 67 0 46 0 00 59 64 218 22 25 16 6 22 0 00 0 00 0 00 0 00 0 00 ' MEAN 054 O15 000 1 92 7 79 81 21 000 000 000 000 000 MAX 1 1 96 00 50 56 16 3 3 00 00 00 00 00 MIN 00 00 00 00 00 00 00 00 00 00 00 OD AC-FT 3 3 9 00 118 933 50 12 00 00 00 00 00 STATISSZCS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 2001 8Y WATER YEAR (WY) ' MEAN 021 34 74 13 4 14 0 11 1 6 09 2 66 O11 036 000 054 MAX 12 1 94 4 93 108 77 8 50 7 46 7 26 3 077 39 000 67 (WY) 1994 1997 1998 1993 1996 1995 1993 1993 1999 1999 1988 1997 MIN 000 000 000 000 D00 000 ODO 000 000 000 000 ODO ' (WY) 1988 1988 1990 1991 1966 1986 1969 1968 1968 1988 1966 1988 SUMMP.RY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1986 2001 ANNUAL TOTAL 201 19 311 37 ANNUAL MEAN 55 85 4 O1 � HIGHEST ANNUAL MEAN 23 2 1993 LOWEST ANNUAL MEAN 006 1990 HIGHEST DAILY MEAN 77 Feb 21 56 Feb 27 1340 Jan 16 1993 LOWEST DAILY MEAN 00 Jan 1 00 Oct 1 00 Oct 1 1987 ANNUAL SEVEN-DAY MZNIMUM 00 Jan 1 00 Oct 1 00 Oct 1 1987 ' MAXIMUM PEAK FLOW 242 Jan 11 e7200 Jan 16 1993 MAXIMUM PEAK STAGE 2 55 Jan 11 B 47 Jan 16 1993 ANNUAL RUNOFF (AC FT) 399 618 2910 10 PERCENT EXCEEDS 00 03 2 9 50 PERCENT £XCEEDS 00 00 00 , 90 PERCENT EXCEEDS 00 00 00 e Estimated ' 190 SANTA MARGARITA RIVER BASIN ' 11042900 SANTA GERTRUDIS CREEK NEAR TEMECULA CA LOCATION —Lat 33 31 28 long 117 09 50 m Temecula Grant Rne�s�de Countv Hydrolog�c Unit 18070302 on left bank 0 85 mi upstream from Mumeta Creek 1 65 mi downsveam from Tucalota Creek and 2 2 m� northeast of Temecula ' DRAINAGE AREA —90 2 mi PERIOD OF RECORD —Oc[ober 1987 to current yeaz Dischar measurements only October 1991 to September 1992 REVISED RECORDS —WDR CA 94 1 Dramage area WDR CA 96 1 1993(M) , GAGE —Water stage recorder crest stage gage and concrete control Elevauon of gage �s 1 045 ft above sea level from topograph�c map Pnor to Oct 11 1994 at s�[e 800 ft upstream at different datum REMARKS —Records fau F7ow partly regulated by Skmner Reservoir capacity 43 800 acre ft See schemaUC diagram of Santa Lier�dnta R��er Ba.em , EXTREMES FOR PERIOD OF RECORD —Max�mum discharge 7 200 ft estimated Jan 16 1993 gage height 8 47 ft s�te and datum then m use based on cnucal depth computat�on no flow for most of each yeaz DISCHARGE CUBIC FEET PER SECOND WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 ' DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN NL AUG SEP 1 0 00 D 00 D 00 0 00 0 00 0 00 D 00 0 00 0 00 0 00 3 4 0 00 ' 2 0 00 0 00 0 00 0 00 0 00 D 00 0 00 0 00 0 DO 0 DO 0 22 0 00 3 0 00 0 00 0 DO 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 9 0 00 0 00 0 DO 0 00 0 00 0 DO 0 00 0 00 0 00 0 00 0 00 0 00 S 0 00 0 00 0 00 0 00 0 DO 0 DO 0 00 0 00 0 DO 0 00 0 00 0 DO ' 6 0 00 0 00 0 00 0 00 0 00 0 00 0 DO 0 00 0 00 0 00 0 00 0 00 7 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 D 00 s o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 io 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 ' ii o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 iz o 00 o ie o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 13 D 00 D 63 0 00 0 OD 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 i4 0 00 0 0o i i o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 is o 00 0 00 o za o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 ' i6 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 17 0 00 0 00 D OD 0 00 0 35 0 43 0 00 0 00 0 00 0 00 0 00 0 00 18 0 00 0 00 0 00 0 00 0 60 2 0 0 00 0 00 0 00 0 DO 0 DO D 00 19 0 00 0 00 0 00 0 00 0 00 0 00 0 00 D OD 0 00 0 00 0 DO 0 00 , zo 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 zi o 00 0 0o a 2 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 zz o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 za o 00 0 00 0 00 0 00 0 0o i o 0 00 0 00 0 00 0 00 0 00 0 00 29 0 00 17 0 00 0 00 0 00 0 00 2 5 0 00 0 00 0 DO 0 00 0 00 ' 25 0 00 2 1 0 00 0 00 0 00 0 00 0 46 0 00 0 00 0 00 0 00 0 00 26 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 z� o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 ze o 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 ' z9 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 30 0 DO 0 DO 0 19 0 00 D DO D 00 0 00 0 00 0 00 0 DO 0 00 31 0 00 0 41 0 00 D 00 0 00 0 00 0 00 TOTAL 0 00 19 91 4 14 0 00 0 95 3 93 2 96 0 00 0 00 0 00 3 62 D 00 MEAN 0 000 0 664 0 134 0 000 0 034 0 111 0 099 D 000 0 000 0 000 0 117 0 ODD � MAX 0 00 17 2 2 0 00 0 60 2 0 2 5 0 00 0 00 0 00 3 4 0 00 MIN 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 AC FT 0 00 39 8 2 0 00 1 9 6 8 5 9 0 00 0 00 0 00 7 2 0 00 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 2002 BY WATER YEAR (WY) , MEAN 0 019 0 363 0 695 12 97 13 OS 10 31 5 660 2 678 0 O10 0 033 0 008 0 O50 MAX 0 12 1 94 4 93 108 77 8 50 7 46 7 28 3 0 077 0 39 0 12 0 67 (WY) 1999 1997 1998 1993 1998 1995 1993 1993 1999 1999 2002 1997 MIN D 000 0 000 0 000 0 DOD 0 ODO 0 000 D D00 0 000 0 000 D 000 0 000 0 000 ' (WY) 1988 1968 1990 1991 1988 1988 1989 1988 1988 1988 1968 1988 SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1968 20D2 ANNUAL TOTAL 333 29 35 O1 ANNUAL MEAN 0 913 0 096 3 734 , HIGHEST ANNUAL MEAN 23 2 1993 LOWEST ANNUAL MEAN D 006 1990 HIGHEST DAILY MEAN 56 Feb 27 17 Nov 24 1340 Jan 16 1993 LOWEST DAILY MEAN D 00 Jan 1 0 00 Oct 1 0 00 Oct 1 1987 ANNUAL SEVEN DAY MINIMUM 0 00 Jan 1 0 00 Oct 1 D 00 Oct 1 1987 , MAXIMUM PEAK FLOW 133 Nov 24 e7200 .7an 16 1993 MAXIMUM PEAK STAGE 2 37 Nov 24 B 47 Jan 16 1993 ANNUAL RUNOFF (AC FT) 661 69 2700 10 PERCENT EXCEEDS 0 17 0 00 1 7 50 PERCENT EXCEEDS 0 00 0 00 0 00 90 PERCENT EXCEEDS 0 00 0 00 0 00 ' e Estimated i � ��\ Riverside County Flood Control and Water Conservation District ' �� j 1995 Market Street / Riverside CA 92501 / Phone (909) 955 1200 / F� (909) 788 9965 ' Letter of Transmittal To APEX ENGINEERING Re San Gertrudis Inquiry ' 2601 S 3 S Surte 200 ��' Tacoma, WA 98409 ' Attn Dave Nason (253) 473-4494 Date 10/06/03 , We are forwarding 1 copies of the attached document(s) Prints Plans Specifications Copy of Letter Other ' 1) San Gertrudis Unrt Hydrograph documents � ' ' � For approval Approved as noted For your use Retumed for correction X As requested Resubmrt copies for approval ' For review and comment Submit copies for distribution Approved as submitted ' REMARKS Governmg 24hr Unrt Hydrograph runs could not be found see diagram attached to Unrt , Hydrograph runs � f X ° ���� ' Ben�i C oh Junior Engineer Planning Division , (909) 955-1348 ' ' � � - - -- - , �r�F i � � u��k �P �oR 5A NT� C� TRv�1 S ]Z 2Z � (` � - = �� (� ZO,O c.�5 C� "�� ,n�o L4k� 5 �k �c�ea� ' � , - - -- - -- - ' f - ��4K� - 5 K I�V �J�j� �p c�5 ) - r ,I ,� � � � «< �y- ct �'� , 000 h�..�= = 4o3Z ou� of La�� sk�►��er (Q-�- ' °-,°°..° r — r = 3os3 ��,�al ota cK _ � ��� � `� Z �0 � l � 2 � / t �_� ���� � .-, Q �� can��ke� Tu�4[o+� Ck � Lak�- Sk Kke.r ( �� 1 -. -� i� - j Q� 7 �� 5 1 SGtn��t GelT�ud<<S C��.(� ' 1 , � ' (�T �,�Z� �j GI s �� -�� � (�J r N c.� �s T�2 R�oh� , ' � �� _ Q = ! l, z73 �f s � ^ �- 1� _ � � ,� ' � �______ __.__...__ ,.�_ _.�.- - � _ _�- ..._ --- -------- - - - �__....e..__..__�__.. - - AiSY.PLAN�NiURRIETA PROGRAM FC600 FRIs APR 6� 1984� 9.15 AM PROJEC7 7-6-956-00 000-D RUN' TUCALOTA & SAN A GERTKUDIS CK 100-6 _, p�p FILE ID LAG USE x OESCRIPTIO'V �yF�p1�- TUCA60UT 0 100.0 TUCAL�TA CKo- COMBI[1ED �AM OUTFLON 6HR NFLO�i= SG�6V� 0 100.0 SANTA GER7RUDIS CK. COMBINED 100YR 6HR PERI�D TIME INFL041 INFL�W �UTFLOW TUCk60UT SG06UF TUCASG06 ' 1 3p 3.68 b.79 10.46 1 2 1 00 16.62 31.75 48.36 ' 3 1 30 48.94 80.36 129.30 4 2 00 86.94 175.73 262.67 5 2 30 1i6.82 278.i3 394.94 � 6 3 00 148.24 350.42 498.56 ' 7 3 30 191,.15 439.71 630.86 g 4 00 3Q2.64 b31.97 934.61 g 4 30 562.75 1075.28 1638.03 ' 10 5 00 1031.66 1893.I7 2924.83 21 5 30 1803.42 3350.62 5154.04 � 12 6 00 2725.8� 5135.17 7861.01 �3 6 30 3531.37 6523.89 10155.25 �--�1� 7 00 3547.60 �725.25 11272.85 �, �- �}tN�t�E � - � l � ` i� 7 30 2947.29 5749.37 869b.66 { 16 8 00 3447.27 3182.58 6629.85 � 17 g 30 4096.83 2318.37 6415.20 - Zg 9 00 4267.20 1762.32 6029.52 ig 9 30 4315.09 1399.47 �714.55 20 10 00 4273.78 1103.84 5377.61 21 10 30 4198.43 895.79 5094.22 22 11 00 4Q92.07 7 1.49 48 2.56 23 11 30 3950.58 549.20 4499.78 24 12 00 3823.05 415.96 4239.01 ' 25 12 30 3685.15 324.62 q009.77 26 13 00 3523.09 230.22 3753.31 27 13 30 3357.24 155.44 3512.68 � 28 14 00 3177.83 140.86 33i8.69 29 14 30 2995.52 132.06 3127.58 30 15 00 28i3.38 125.6 2938.98 , 31 15 30 2538.31 113.28 2751.59 32 16 00 2485.59 106.93 2592.52 33 16 30 2338.64 98.53 2437.17 34 17 00 2215.08 75.82 2290.90 r , 35 17 30 2126.41 82.07 2208.48 36 1'3 00 2041.14 72.70 2113.84 � 37 18 30 1958.53 25.83 1984.37 `' ' 38 19 00 1800.42 22.51 1822 °2 � 39 19 30 .CO 17.23 17.23 40 20 00 00 16.60 16.E�0 � � ���41 20 30 00 8.53 $.53 � 42 21 00 00 2 •2� � , _ _ - - - - ---- -- -- - -- - - -- � DAISY.PLAN,MURRIETA PROGRA��1 FC600 FRI• APR 6� 1984, 9 04 AM PROJECT 7-6-956-00 000-0 RUIV: SANTA GERTRUDIS CK. COMBINED 100YR 6HR � � � DATA FILE ID LAG USE X DESCRIPTION , INF�OW= SG06U 0 20.0 SANTA GERTRUDIS CK. 100YR 6HR VALLEY INFl.Ow= SG06F 0 80.0 SANTA GERTRUOIS CK. 100YR 6HR FOOTHIL � �� PERIOD i IME INFLOW ` �IVFL041�� FL01� � � SGD61! . � SG06F S6061lF � � � 1 30 T.bB . 1 .79 2 1 00 8.23 23.52 31.7� 3 1 30 21.50 58.86 80.36 , 4 2 00 39.74 135.99 175.73 5 2 30 55.87 222.26 278.13 6 3 00 68.77 281.65 350.�2 � 7 3 30 88.99 350.72 439.71 8 4 00 137.33 494.64 631.97 9 4 30 242.28 833.00 1075.28 10 5 DO 426.31 1466.86 1893.17 11 5 30 737.80 2612.82 3350.62 12 6 00 1104.27 4030.90 5135.17 13 6 30 1341.11 5182.77 65r23 .� - �� 7 00 1296.80 6428.45 7725.25 t � � 15 7 30 916.11 4833.26 57 . 16 8 00 576.74 2605.83 3182.58 17 8 30 410.89 1907.48 2318.37 , 18 9 00 309.84 1452.48 1762.32 19 9 30 249.87 1149.59 1399.47 20 10 00 202.44 901.40 1I03.84 21 10 30 168.54 727.25 895.79 22 11 00 145.36 566.13 711.49 23 11 30 127.12 422.08 �49.20 24 12 00 108.37 307.59 415.96 25 12 30 97.52 227.10 324.62 26 13 00 84.83 145.40 230.22 27 13 30 78.31 77.13 155.44 � 28 14 00 66.15 74.71 140.R5 29 14 30 58.55 73.50 132.06 30 15 00 53.72 71.$9 125.61 31 15 30 43 54 69.74 113.28 32 16 00 40.15 66.79 106.93 33 16 30 35.51 63.02 98.53 34 17 00 26 24 49.59 75.82 � 35 17 30 24.96 57.11 82.07 36 18 00 21 90 50.79 72.70 37 18 30 24 62 1.21 25.8z � 3B 19 00 22 Sl .00 22.51 39 1� 30 17.23 .00 17.23 40 20 00 16.b0 .00 15.60 � � 41 20 30 8 63 .00 8.63 �` 42 21 DO 20 00 .20 „ � ��,. � �, � � �� � - --- -------- -- r � L t N^WL P_ = 5CT U(o E' INEER => DAISY FC602 HY�ROGRAPH THUs APR 5• 1984� 4 26 PM � J 7-6-956-00 RUN: SANTA GERTRUDIS CK. 100YR 6HR FOOTHILL � GRAPH UNIT TIME 3� (MIR{) LAG TIME 111.9 (MIN) AREA 26.042 (SQ MI) �j S-CURVE FOOTHILL = � ECTIUE IfNIT TIME 30 (�4Il�) STOR�! b tHR) ADJ POINT RATN 3.07 (It�) NFALL PUT LOW LOSS RATE 90 (�) MAX LOS�T� .30 (IN/HR) IT TIt�E TOTA� EFFECTIVE RUNOF� VOLU+9E INCREMEtdTA� --- ERIOQ 7IN�E RAIN CFS ACRE FT VOLUME 1 30 .02 6.38 .264 .264 2 1 00 .03 29.39 1.478 Zo215 3 Z 3p .03 73.57 4.519 3.O�+U � 2 00 .03 169.99 11.543 7.024 � _ 5 2 30 •03 277.82 23.023 11.480 r 6 3 00 .Q6 352.07 37.571 14.548 7 3 30 .12 438.�+0 55.687 18.116 g 4 00 .25 6I8.30 81.237 25.550 9 � 30 .41 1041.25 124.2b4 43.027 10 5 00 .58 1833.57 200.031 75.767 11 5 30 1.24 3266.03 334.991 134.960 � 12 6 00 .03 5038.62 543.198 208.208 � 13 6 30 6�78.�7 810.904 267.705 � � l q. 7 pp 8035.56 1142.952 332.048 MAXIMUM 15 7 30 6041.58 1392.604 249.652 16 8 00 3257.29 1527.203 234.599 17 8 30 2384.35 1625.729 980527 - lg 9 00 1815.60 1700.754 75.025 19 9 30 1436.99 1760.134 59.380 2p 10 00 1126.75 1806.694 4b.560 21 10 30 909.06 1844.258 37.564 22 11 00 7D7.66 1873.500 29.242 23 11 30 527.60 1895 302 21.802 24 12 00 384.49 1911.190 15.888 25 12 30 283.87 1922.920 11.730 ' 25 13 00 181.74 1930.430 7.510 27 13 30 96.42 1934.414 3.984 28 14 00 93.39 1938.273 3.859 29 1� 30 91.88 1942.070 3.797 30 1� 00 89.85 1945.783 3.713 31 15 30 87.18 1949.385 3.6C2 32 16 00 - 83.48 1952 835 3.450 � 1964.2�3�3 TOTAL ' � ,�� -- SG o� � INEER => DAISY FC602 HYDROGRAPH THU� APFt 5, 1984� 4 26 PM - 56-00 RUN: SAfVTA GERTRUDIS CK. 100YR 6HR UALLEY OJ 7-b 9 n � GRAPH UNIT TIME 30 CMIIU) LAG TI�1E 111.9 (MIN) AREA 26.042 (SQ MI) PUT S-CURVE: VALLEY FECTIVE Ut�Ii SI�IE 3� (MIN3 STORM 6 tHR) ADJ POItdT RAIN 3.07 (IN) INFALL JPUT L04� LOSS RATE 90 (9') MAX LQSS RATE .30 ( IPJ/HR) IT TIME TOTAL E FECTIVE RUNOFF U�LUME INCREHEIdTAL PERIOD TIP9E RAIN CFS ACRE FT VOLUME I 3D .02 8.40 .347 .347 2 1 00 .03 41.15 2.048 1.701 3 1 30 .03 107.50 6.490 4.442 � 2 0 . 3 298.71 14•7 8•21 ' , 5 2 3d .03 279.34 26.24� 11.543 (, 3 00 .Ob 343.84 4.�52 4.208 7 3 30 .12 444.95 58.838 28.387 g 4 00 .25 686.67 87.213 28.375 9 4 30 .41 1211.41 137.271 50.058 10 5 00 .58 2131.55 225.352 88.081 11 5 30 1.24 3688.98 377.789 152.437 12 6 00 .03 5521.37 605.945 228.156 i f �3 6 30 6705.57 883.034 277.090 f�'IAXIMUM 1� 7 00 5434.01 1150.969 267.934 15 7 30 �530.57 1340.248 139.2$0 ' 16 8 Od 2833.72 1459.410 119.162 17 g 3p 2054.45 1544.305 84.895 18 9 00 1549.20 160$.322 54.016 19 9 30 1249.37 1659.9�8 51.627 20 10 00 10 2.1 70 . 4 41. 6 21 10 30 842.71 1736.597 34.823 22 11 00 72b.81 1 66.6 1 . 23 11 30 635.60 1792.895 2b.2b5 24 12 00 541. 7 1.2 7 2. 25 12 30 487.62 1835.437 20.150 � 26 13 00 424.1 8 2.9 2 . 27 lz 3a 391.54 18b9.142 16.179 28 14 00 0.7 • • 29 14 30 292.77 1894.907 12.098 30 15 00 268 9 9 6.0 . 9 31 1� 30 217.69 1915.�01 8.995 r , 1964,289 TOTAL ' ,�. � `-- - -- - - ---- ---- -- - --- SY',.RLAN,MURRI£TA PROG4AM FC600 THU� aPR 5� 1984� 4'21 PM OJECT 7-6-956-00 000-� RUN' TUCALOTA CK.- COMBINED DQM OUTFL01i 6HR �-� . - r - TA FILE IO LAG USE X DESCRIPTION �Ot�= LS60UT 30 100.0 LAKE SKINNER 100YEAR bHOUq ROUTING l L041= TUCA6VF 0 100.0 TUCAL07A CREEK - COMBINED 100YR 6Hr� IOD TINE IhFLOW INFLIII�__ � LS60UT i'i�CA6VF TUCA60U7 �_ 1 30 .00 3.68 3.68 2 1 DO o00 16.62 16.62 3 1 30 .14 48.80 48.94 � 4 2 00 068 86.26 86.9� 5 2 30 2.10 114.71 116.82 6 3 00 5.61 I42.53 148.14 - 7 3 30 11.82 179.34 191.I5 � g 4 00 21.34 281.30 302.64 9 4 30 41.16 521.59 562.75 10 5 00 75.35 956.32 1D31.56 �l.l 5 30 146.68 1656.74 1803.42 2 6 00 276.89 2448e95 2725.84 13 6 30 5�7.G3 3083.73 3632.37 ' 14 7 00 1022.33 2525.27 3547.60 1F 7 30 1571.77 1275.52 2947.29 8 00 2593.47 853.80 3447.27 �7 8 30 3478.30 618.52 4096.83 18 9 00 3810.71 456.49 4267.20 19 9 30 3975.81 339.27 4315.09 20 10 00 4032.17 241.61 4273.78 21 10 30 4028.13 170.30 4198.43 22 11 00 3972.49 118.58 4091.fl7 23 11 30 3880.02 7D.57 3950.58 24 12 00 3763.84 59.21 3B23.05 25 12 30 3627.4$ 57.66 3585.15 26 13 00 3474.74 48.34 3523.09 27 13 30 3308.60 48.64 3357.24 28 14 00 3140.55 37.28 3177.$3 29 14 30 2961.87 33.65 2995.52 30 15 00 2790.1° 23.1 2813.3 31 15 30 2628.85 9.46 2638.31 32 16 00 2476.93 A.bS 2485.59 33 16 30 2332.65 5.98 2338.64 34 17 C�0 221 .93 .15 2215.0 r � 35 17 30 2126.41 .00 2126.41 36 1A 00 2041.14 .00 2041.14 37 18 3� 1958.53 .00 1958.53 �38 19 00 1800.42 .00 1300.�2 ��NiE 3067.84 683.58 3751.�2 � - - - -- - ------ - - �ISY.PLAN�MURRIETA PROG4AM FC500 THU� APR 5� 1984� 3 58 PM RflJECT 7-6-956-00 000-Q RUN' TUCAIOTA CREEK - COMBINEO 100YR 6HR '� - � � qTq FILE ID LAG tlSE � DESCRIPTION FL01�= TUCA6 0 20.0 TUCALOTA CREEK - 20X VALLEY 100YR 6HR s�i r„�- Ti�rn�F 0 80.0 7UCAldTA CREEK - 80X � 100YR bHR 1 1.. V R - � � - - - - �T�€ !L l. RIOD TIME INFLOU I(dFL041 OUTFLON TUCA6 TUCA6F TUEA6VF 1 30 .91 2.77 3.b8 2 1 00 4.47 12.15 16.62 3 1 30 10.97 37.83 48.80 � 4 2 00 17.47 68.79 86.26 5 2 30 22.91 91.80 114.71 6 3 00 27.72 1I4.81 i42.53 -' 7 3 30 36.28 143.06 I79.34 g � 00 b0.52 220.78 281.30 9 4 30 214.49 407.10 521.59 10 5 00 2�5.28 751.04 956.32 11 5 30 348.04 1308.70 1656.74 12 6 00 5�3.26 1935.69 2448.95 ' 13 6 30 558.35 2515.38 3083.73 ��+ 7 00 404.99 2120.28 2525.27 j15 7 30 229.23 1046.29 1275.52 16 8 00 152.1� 701.66 853.80 17 8 30 110.34 508.i8 618.52 18 9 00 85.79 370.70 456.49 19 9 30 67.73 271.55 339.27 20 10 00 56.58 185.03 241.61 21 10 30 46.95 123.35 170.30 � 22 11 00 39.81 78.76 118.58 23 I1 30 35.16 35.41 70.57 24 12 OQ 29.43 29.78 59.21 25 12 30 24.18 33.4$ 57.66 26 13 00 19.60 28.74 48.34 27 13 30 17.28 31.36 48.64 28 14 00 13.18 2�.10 37.28 29 14 30 10.�4 23.21 33.65 30 15 00 11.OQ 12.10 23.16 31 15 30 9.16 .30 9.46 32 16 00 8.65 .00 8.65 33 16 30 5.98 .00 5•98 � 34 17 00 .15 .00 .15 � VOLIlME 13b.72 546.87 683.58 � LNGINEER => OAISY FC602 HYDROGRAPH THU, APR S, 1984� 3 40 PM �PROJ 7-b-956-00 RUN' TUCALOTA CREEK - 20� VALLEY 100YR 6HR D/S DAM _ � . ��T GRAPH UNIT TIME 3D (MIN) LAG TIME 82.6 (MIN) AREA 9�570 (5Q �I) �'iNPUT S-CUR�E: VALLEY EFFECTIUE UNIT TIME 30 (MIN) STORM 6(HR) ADJ POI�T RAIN 2.92 (IN) RAI�FALL INPUT LON LOSS �ATE 90 (%) �bX LdSS �ATE .29 (INfhR) � UNIT TIME TOTAL EFFECTIVE RUNOFF VOLUME __INCREMENTAL PERIOD TI�E RAIN CFS �CRE �T -- VOLUME 1 30 .02 4.57 .189 .189 2 1 00 .02 22.34 1.112 .923 3 1 30 .03 54.87 3.380 2.268 4 2 00 .03 87.34 5.989 3.6Q9� 5 2 30 .03 114.55 11.723 4.734 6 3 00 .05 138.58 17.449 5.726 7 3 30 .11 18i.41 24.946 7.496 8 4 00 .24 302.58 37.449 12.503 9 4 30 .39 572.45 61.10� 23.655 10 5 00 .55 1026.39 103.517 42.413 11 5 30 1.18 f740.19 175.426 71.909 12 6 00 .03 2566.28 281.470 106.0�5 � 13 6 30 2841.76 398.899 117.428 MAXIMUM �� � 14 7 00 2024.94 482.574 83.675 15 7 30 1146.14 529.935 47.361 lb 8 00 760.72 561.369 31.435 � 17 8 30 551.71 58�.167 22.798 18 9 00 428.94 601.892 17.725 19 9 30 338.63 615.8$5 13.993 � 20 10 00 282.89 627.575 11.690 21 10 30 234.75 637.275 9.700 � 22 11 00 i99.07 645.501 8.226 23 11 30 175.80 652.765 7.264 24 12 00 147.16 658.846 6.081 2� 12 30 120.92 663.843 4.997 26 13 0� 98.02 667.894 4.050 � 27 13 30 86.42 671.464 3.571 28 14 00 65.92 674.189 2.724 29 14 30 52.22 676.345 2.158 � 30 15 00 55.43 678.537 2 291 31 15 30 4�.�0 580.530 1.893 - r 683.583 TOTAL '- �� . a ' -- NGIN£ER => DAISY FC602 HYDROGRAPH THUr AP� S� 1984� 3'40 PM ��t� { �OJ 7-6-956-QO RUN: TUCALOTA CREEK - 80X 100YR 5HR �/S DAM - ;T GRAPH UNIT TIME 30 (MIN) LAG TIME 82.6 (MIN) AREA 9r570 (SQ�?1I) �I1v�UT S-CURVE FOOTHILL EFFECTIVE UNIT TIME 30 (MIN) STORM 6(HR) ADJ POIfdT RAIN 2.92 (IN) AINFALL INPUT LOW LOSS RATE 90 (X) MAX LOSS RATE .29 (IN/HR) � �UNIT TIME TOTAL EFFECTIVE RUNOFF VOLUME INCREMENTAL PERI4D TI�3E RAIN CFS ACRE FT UOLUME 1 30 .02 3.46 .143 .143 2 1 00 .02 15.18 .770 .627 3 1 30 .03 47.28 2.724 1.954 4 2 00 .03 85.99 6.277 3.553 � 5 2 30 .03 114.75 11.019 4.742 , 6 3 00 .05 1A3.51 16.949 5.930 7 3 30 .11 178.82 2�.339 7.389 8 4 00 .24 275.48 35.743 11.�04 9 4 30 .39 508.87 56.771 21.028 10 5 00 .55 938.80 95.564 38.793 11 5 30 1.18 L635.88 163.162 67.598 12 6 00 .03 2419.62 2b3.146 99.984 � '�13 6 30 324�.22 393.073 129.927 MAXIMUM y� I 14 7 00 2650.35 502.591 109.519 15 7 30 1307.86 556.635 54.044 16 8 00 877.07 592.87R 36.243 � 17 8 30 635.23 619.127 26.249 18 9 00 463.38 638.275 19.148 19 ° 30 339.43 b52.301 14.026 20 10 00 231.29 65i.859 9.557 � 21 10 30 154.19 668.230 6.372 22 11 00 98.45 672.299 4.Ob8 23 11 30 �4.26 674.127 1.829 � 24 12 �0 37.22 675.666 1.538 25 12 30 41.85 677.395 1.729 26 13 00 35.92 678.879 1.484 ' 27 13 30 39.20 6$0.499 1.b20 28 14 00 30.12 681.744 1.245 29 14 30 29.01 682.943 1.199 � 30 15 00 15.12 583.558 .625 31 1� 30 .37 683.583 .015 r 683.533 TOTAL , '� I �- I � � !� � - � � - � � �,� � t!1 � � � � � � EVE PL��v,MURRIETA FC109 ROUTIN6 THU� DE� 15� 1983� 10•26 AM PAGE 2 �OJECT 7-6-956-00 000-0 RUN LAKE_SKINNER 100YEAR �HOUR ROUTING NIT TIME TO AMOUNT UNIT S+0(DT)/2 OUTFLOW OUTFLOW S-0(DT)/2 WATER I IME ENO OF INFLOW INFLOW (ACRE FT) RA � PERI00 (CFS> (ACRE FT) __ (CFS) (ACRE FT) ELEVATION � 1 30 18�65 77 43800.00 .0 .00 43800.00 1478.9 2 1 00 71 64 2.96 4�$�Sa.77 .1 . . �I�+ � 3 1 30 188.76 7.80 43803.73 07 .03 43803.70 1479.0 � 4 2 00 466.50 19 28 4�$�'r.49 -�.�. . . . � 5 2 30 825.04 34 09 43830.68 5.6 .23 43830.45 1479.0 6 � 3 0 0 1272 24 52 57 4386�+:5 +i` ��11 :A . . . 7 3 30 1841.78 76.11 43916.63 21.3 .88 43915.74 1479.1 8 V 4 ✓ 00 2585.04 106.82 4�99�. � . . . 9 4 30 3855.32 159.31 44096.97 75.3 3.11 44093.85 1479.2 f 10 5 00 5843 66 241.47 44253.16 ���F6.7 . 11 5 30 9249.16 382.20 44488.58 276.9 11.44 44477.13 1479.5 12 - 6 00 13268.70 548.29 4�+85�3:33 - �5�+"l�', . . . 13 6 30 16638.23 687.53 45384.99 1022.3 42.25 45342.T5 1480.1 14 � 7 00 20077.42--� 829.65 �+6�030:2$ � . . .E 15 7 30 16650.00 688.02 46790.85 2593.5 107.17 46683.68 1481.2 16 - 8 00 8882.44 367.04 47373. . . - 8 . 17 8 30 6494.99 268.39 47595.01 3810.7 157.47 47�t37.54 1481.7 18 -- 9 00 489�.02 202.�5 47705:�3 - 3�975:��64. . �+81:8 19 �� 9 3 0 3 9 6 6 5 4 16 3 91' �+ 7T�+ 3. 7 5` Q . . �` �-----r.. 20 �10 00 3323.51 129.07 477�+1:D8 . . . B�8 21 10 30 2469.23 102.03 47703 70 3972.5 164.15 47539.54 1481.� 22 00 1990 96 82 27 47b41.57 - �3880:0 -- `�b�3 - . I 23 11 30 1547.03 63.93 47563.52 3763.8 155.53 47407.98 ,1481.7 24`� 12 00 5 33 47.29 47471:91r``3"E�7. . 0 . .6 25 12 30 7R0.88 32 27 47369.30 3474.7 143.58 47225.72 1481.6 26 13 00 651.99 26.94` 47�5 V 3 . . �4�: �7 13 30 316.01 13.06 47148.21 3140.6 129.77 47018.44 1481.4 2 S 14 0 - 2 �+7 . 9 7 1 0. 5 --- 4 031: 4�T 1: J�2 . . 4 29 14 3 239� 79 9.91 46919.35 2790.2 115.30 46844.05 14R1.3 30 15 00 2,��,.36 y � 9.4b�rFb8�3.g� ��: . . .� 31 15 30 196.28 8.11 46714.73 2476.9 102.35 46612.38 14A1.1 � 3 2 16 6 � �� � � �5 : 9')'�F b�?�.�+ S� . . . . 33 16 30 228 34 9.44 46533.96 2214.9 91.53 46442.44 1481.0 3 4 17 6 0 �3�'�L ��` `- S b�+�+ 8 . . . . 35 17 30 187.45 7.75 46372.80 2041.1 84.34 46286.46 1480.9 3 � 0�"�3� `8 6 __` _ �.�+ �` . . . . . 37 18 30 15 6.37 6 46 46220.68 1877.1 77.57 46143.12 1480.8 �� ^�w n.� a�w i ... .��. ._., � � C � � _ I t a_�_� � T j+ 9 I --, � ` � �_ ¢ ��� OFFlCE STANDARp N0� IQ@ i 9oc� i- f R I 1 � - � , 1, �, - 1 1 � i � i>> I I � YA�U� T) M S E� S� CH R_ L� I� � r ec� �. - ' - i i� +� i � � a � I I � I i� 9'�� '� ! , ! r , 7cv � � � - � Y-T -+---- � )EXt�1vlPLE I � � � { t � , _ � .-. � , � I I , � � , au � r�n noN�, i c..im � _, � � j � I GIVEM _ � � � � i i � � � _ � 4 I � - � •- - -, �'!Q N 4� �TO PI.AN 2� � L � ! i � t I � � 64 7�C F S i COMPUTEb KLOW t 9UMP ��� Y � � �� I � � � � lE0 HO S A E I STR LAN �8�3 f i_ � _� i� MAkfl�UM oERMl5f18 'E GEP7�1 (5 ba ` - f- a t �� , �- - l l H K 1M�� ^ � � � WA'�E�t 1�1�SUMP� I� FT � i � yi�� � � � __ , � i y ��Q�T, � CRO�SFRLIt I � � � � _ � � � _ i � s__ s� � , � , � � � � � i � � r oy�r � �2 �iw winiH �- { I � 1 "�, � 1 1 j � � � � R�QU�REO! 1 � � � r ,,'" '1V`{ � { 1 i � � N A� F, I�j9 Q Af C6 � 20G _ �£HB.Tl�-.�1+�1�F tUR9_DP W13�51-- (- � .-�-�� g l x � � � 3 + - � � I 1� , �'' �, � � ��DTE�` -�-----;-j---+- � �'� � --�--� i � � � r ( s ` i � � sowc�q� I � ' � I � � 1 � l� � ,�� I- }.-�1 E � - � ' } I � ' � !�o � i FT ' ( � j�,,��' �,� � j I T IIS C 1AR7 GIY 5 C GITIE� A 0 V �pPED �P 0�� I I � � i I '� ' f' � � I YpF3AUL1 �O E4 �T1�01 S� 0 GATC�1 B SI� 0�O rY �� � i _Jf70 '� � f T � r ����� I � + ,� ' I` - r I i, —� � ' ;- uAa'or L y�rla � n r,�Np Co "�-o�� s S��'� d "� ' R _ F -� _- �T� �� I� � �l � �� __w�� ,. � AY �E"USEI�T ��E M`N N HE� HC� r� jpn � ; � F,q. - � � �,.�. - I - , y ' �- � / � , � �� t ��-. k+E1JeP.aIC17Y 0 _ A 1►Blb qP N1H _� i^.k' � � s _ 6Q ,� � � i � I 1 �1 - � �N � � _S V1NDEFE Y VA U S 0 � _ � { � ti - �(f►E �r � �lF' � �„_ f 3 T _'_....._ �� 1 i i � at� _ _., F , -- � - ---4 - - , ...•1= - i t ( � r � � _^�.'I 5}C AR � IS A P p°�� �tQ QOIAQ T� N�_ ,{ � � Z �-� 1 i '� 1 � i i, t 1 I � � � �� ��SHbWN 0 1 fyOl�R� R� N � E U�EO RtAf�'�;C 0�5 A� 1 � � � - � ' � - -- -_--. ! � __.__ _' � - '�Y SELEC (N� PR OI�'0 "R� "�1 � "� � T I - , � j� z 1 2 I � , i '� ' "i � { f �THER�FR�� ` �' '_ � j_ ` I t L —+— _� i �T T�n o=e� a �.� �+....�._ i �— � t t -� i-1---� s�R r n+ t, � i i _ 1 I � �, � i �l� � , � �, � � ( o ao�w � 6 '_i � i i i � � I� � �� i j � W� �ENGT� ( E T� ATGF� BA IN�� Epl a 1� a I I � � I i ,' �' � A A�ftE�A �0�' OPE 1 Q x O 671 �{� � � =�a � I�.�. ,.�- � ��_ �,.�''` �� I 1-- � _� � D O�P _ F E �� W �p4Y _ � '�'� '+--� # - +-� ---�- - - � 1 - k � i � " � � ��� � `- - - � _ r __x.�4 - --- a 1 � - � -----�-, _ T� _ � ____�_�- �` � � � � 1 i I i -- I �- - -- _ � _ ' �_I �� � t __ __ �.�_J _1 � � i —� E I j I � � � I �W '_.y � I � � � '--+_�� � � ,� • �i—F i_ 1 �l J _ � �111�._ � -- � _ � � _ �^ � 1 J � y 1 � � _� Y _�_ � ' � 0�1' Pk� U�t �N�1 , - � - + � { r _ _a � I _�GH , �.1. I � _ , � — _a �--�--' � � , _ ` ,_ _ I � ` _ µ l _� � _ _ _ � i � i 1 ' f� L _ � � a , ,�� � ID INd CAT A IN C 1 fE8 - 1�--�- � � � � I N '- , � � � { 1 r � � �_ � _ I -) -,—� � � _ --� � _- �__ _f I _ _ � p o n°�� �ni a-�rin F �ns _ � , , �� ; ,� I - f � � , � i � � q � � I � `� I I � � � � � �� t � � S��I�A OR�Iti �]ESlti IYI �Kl � � � � � W 0 S 2 t2t ` 1N R � I � I i p�[��P7H (F PIUNIFT) l� E N N L UTTFR 6AACyE I � i � I , i � � �� I� � i f OES G F ] fl 9 OAAri1H 0 5 3 I 5 i _ 1._, '--� - �_ _T � i r f �"4 r _`��_ _ � � 1 i i'" � i `'` i � ► � t � t i � � � s t � � � � � ° N , r + � �1a--� � �� -� � � � �1 � � � � � � � � I� STEVE.PLAN�MURRIETA FC109 ROUTING THU� DE� �5� 1983r 10 26 AM PAGE 1 ,,�,� . - --- -- -- --- - - - PR OJECT 7-6 -956-00 000-0 RU(v L AKE SKINNER 100YEAR 6HOUR ROUTIN� C ONTRO� CY7 ROUTING COMPUTATI CLS60UT J SAVED ROUTING FILE ID CY7 MAXIMUM WATER SURFACE ONLY � CNJ RATING TABLE COMPUTA CLS1006 ] INPUT HYDROGRAPH FILE ID � CN) ORAIN RESERVOIR "� i � STOP ROUTING 2 0 FT BELOW MAXIMUM WATER SURFACE DRAIN OPTION PRINT INCREMENT .0 OUTLET RATING CURVE INC�MENT .1 R ESERVOIR STORAGE TABL 13 ENTRIES 14 0 1 300 0 1420 3200.0 1427.0 5700.0 1 7 9600.0 1445.0 14000.0 1455 0 20800 0 1461 0 23200.0 1471.0 3 0 0.0 479.0 43800. 48 . 4 00. 1483.5 50000.0 1485 0 52000.0 1486.0 53300.0 � RESERVOIR START= 43800.0 ACRE FT� SPILLWAY ELEV= .0 FT S PILLWAY DISCHARGE TABL 29 ENTRIES 1479.0 0 1479.1 25.0 1479.2 65.0 1479.3 125.0 1479.4 195.0 1479.5 275 0 1479.6 36�.0 1479.7 470.0 1479.8 580. 1479.9 i 700. 1480.0 820.0 1480.1 955.0 1480.2 1090.0 1480.3 1250.0 148004 1400.0 1480.5 1495 0 1480.5 1500.0 481.0 2250.0 1482.0 44 . 14 . 7 25. 1484 0 10250 0 14 85.0 1 3750.0 1486.0 17500.0 1487.0 21250.0 1488.0 25250.0 1489.0 29250 0 1490.0 33375.0 14 1.0 3 0.0 .0 4 5. i � ��f,� \ 1;� --` ; U Z 1��v � � � � _ _ _ - -- ---- � � �N�INEER => STEVE _ FC602 HY�R _ THU, DEC 15,_ 19g3, 9 45 AM PROJ 7-6-956-00 RUN. LAKE SKIfJNER INFLOW i00YEAR 6 HOJR _�p IT GRAPH UNIT TIME 30 (MIN) LAG TIME 113.5 (MIN) ARFA 50.719 (Sa _�dPUT c-�URVE FO�JTHILL f�I � EFFECTIVE UNIT TIN� 30 (NIN) STORM - -- RAINFALL 6 �H�� A�J �OI�VT RAI11 3.72 (IN) � INPUT LOW LOSS RATt 90 (X) F7AX LOSS 4ATE .29 CIR/H4? 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RCFC�WCD �RBETA , HY��o� o� r,��l�r��a� 0 FEET 5000 pi a r—i �� r 1 Tc' LIMITATIONS L 100 I Maximum length =1000� TC 1000 9 O 2 Maximum area = 10 Acres 5 ' 900 80 a � °' H h� ,,800 70 ., i� soo b � ' �5 \ Y 3 m 300 a ... , � o � � 2 700 '��; 60 �` 0 200 7 � ' b \� �� , b� �''a l\ �� N °' `� 100 a�i � E � �, �J 600 0 50 \�� ° o 0 50 8 0 a � i ~ - ' � ��� �°� �' 30 � ' gU� R h � _ 0 -�, ' o c� � 20 9 � �d 500 --(�) — _ _— __—. a, a► \. � '1 — v � �__ � _=j O ��. - _ ___—_ >' ' � ; 35 o a a s \� --- 10 v � y 30 K Ai � � ���~�" , I I � � 400 � Undeveloped , - Good Cove� � °' 2 �-_ �.12 � .�' cn a 350 } 25 Undevelo ed � � o L ° � Fair Co �^ 6 14 '~ ' o � 5 y .- 300 Undeveloped 3 21 15 � c � 20 Poor Cover � o � � - I 9 ... 2 16 5 ' 0 250 � �8 Single Family m 17 � ,.. ( I/4 Acre) 50 a� _ .� f 6 18 - s o 15 Commerc�al � 0 19 � , � 0 14 �Pav � 20 c �, 200 } I 3 �' o c ' � c 12 `21 � v � II � ° � 2 5 °�' ° KEY � ' i�0 � g L--H Tc�K--Tc� o F= 8 30 ' EXAMPLE E F= 7 (I) L=550�, H=5 0; K= Single Family(I/4 Ac � 35 Devefopment , Tc = 12 6 min ' 6 100 �2) L=550�, H=5 0�, K= Commerciai 40 Development , Tc = 9 7 min , 5 ' 4 Reference Bibl�ography item No 35 R C FC 8t W C D TIME OF CONCENTRATION I r�Y�Rti� �GY 1�/JANUA� FOR INITIAL SUBAREA I PLATE D-3 � � � � � � � � � � � � � � � � � � � ,�_ � RAINFALL INTENSITY--INCHES PER HOUR � � MIRA LOMA MURRIETA - fEMECULA NORCO PALM SPRINGS PERRIS VALLEY � 6 R4NCH0 CALIFORN � � DURATION FREOUENCY DURATjON FREOUENCY DURATION FREOUENCY OURATION fREOUENCY DURATION FREGUENCY l � MINUTES MINUTES MINUTES MINUTES MINUTES � 10 100 10 100 10 100 10 100 10 300 � � YEAR YEAR YEAR YEAq YEAR YEAR 1'EAR VEAtt YEAR YEAR 3 2 9� ��8 5 3 45 5 10 5 2 77 4 16 5 4 23 6 76 5 2 64 3 7B ` � 6 2 SA 4 07 6 3 12 4 61 6 2 53 3 79 6 3 80 6 08 6 2 �1 3 46 �� � 2 37 3 75 7 2 e7 0 24 � 2 3a 3 51 7 3 4B 5 56 7 2 2♦ 3 21 B 2 21 3♦9 8 2 67 3 9♦ 8 2 19 3 29 8 3 22 5 15 8 2 09 3 O1 D � 9 2 08 3 28 9 2 50 3 69 9 2 07 3 10 9 3 O1 4 B1 9 1 98 2 94 L � 10 1 96 3 10 10 2 36 3 48 10 1 96 2 94 10 2 93 4 52 10 1 BB 2 69 � 11 1 B7 2 95 11 2 24 3 30 11 1 B7 2 80 11 2 67 4 2B il 1 79 2 57 12 1 78 2 82 12 z 13 3 15 12 1 79 z 68 12 2 54 ♦ 07 12 1 72 2♦6 � 13 1 71 2 70 13 2 0� 3 O1 13 1 72 2 58 13 2 43 3 89 13 1 65 2 37 1♦ 1 6� 2 60 14 1 96 2 89 14 1 66 2�8 14 2 33 3 72 14 1 59 2 29 15 1 58 2 50 15 1 89 2 79 15 1 60 2 40 15 Z 23 3 58 15 I 54 2 21 16 1 53 2�2 16 1 82 2 69 16 1 55 2 32 16 2 15 3 44 16 1♦9 2 1♦ 17 1♦8 2 34 17 1 76 2 60 1T 1 50 2 ZS 17 2 OB 3 32 17 1♦5 2 09 1B 1♦4 2 27 1B 1 71 2 52 19 1 46 2 19 1B 2 O1 3 22 18 1♦1 2 02 19 1 40 2 21 19 1 66 2 45 19 1�2 2 13 19 1 95 3 12 19 1 37 1 97 20 1 36 2 15 20 1 61 � 38 20 1 39 2 08 20 1 89 3 03 20 1 3♦ 1 92 22 1 29 2 04 22 1 53 2 26 22 1 32 1 9B 22 1 T9 2 B6 22 1 28 1 93 2♦ 1 2♦ 1 95 24 1♦6 2 15 24 1 26 1 90 20 1 70 2 72 2� 1 22 � 15 26 1 18 1 87 26 1 39 2 06 26 1 22 1 92 26 1 62 2 60 26 1 1B 1 69 2B 1 1♦ 1 80 29 1 30 1 99 2B 1 17 1 76 29 1 56 2 49 28 1 13 1 63 30 1 10 1 73 30 1 29 1 90 30 1 13 1 70 30 1 49 2 39 30 1 10 1 57 32 1 06 I 67 32 1 2♦ 1 84 32 1 10 1 6♦ 32 1�4 2 30 32 1 06 1 52 z 3� 1 03 1 62 3♦ 1 20 1 7B 34 1 06 1 59 34 1 39 2 22 34 1 03 1 4B ,� 36 1 00 1 57 36 1 17 1 T2 36 1 03 1 55 36 1 30 2 IS 36 1 00 1 44 � m 3B 97 1 53 3B 1 13 1 67 38 1 O1 1 51 39 1 30 2 09 38 98 1•0 � z �0 9� 1♦9 40 1 10 1 62 40 9B 1 47 40 1 27 2 02 ♦0 95 1 37 �(n � 45 89 I♦0 ♦5 1 03 1 52 �5 92 1 39 45 1 1B 1 89 45 90 1 29 ��� 50 B4 1 32 50 97 1♦♦ 50 BB 1 31 50 1 11 1 TB 50 85 1 22 55 90 1 26 55 92 1 36 55 84 1 25 55 I OS 1 68 55 91 1 17 rn� z 60 �6 1 20 60 B8 1 30 60 90 1 20 60 1 00 1 60 60 78 1 12 �� � 65 73 1 15 65 80 1 24 65 77 1 15 65 95 1 53 65 75 1 09 � 0 D 70 70 1 11 70 81 1 19 70 74 1 11 70 91 1 46 70 72 1 04 r D � C� �s ee i o� �s �e i�s �s �z 1 0� �s ee i+i �s �o i o0 m D � Q BO 65 1 03 BO 75 1 ll 80 69 1 0� 80 95 1 35 BO 6B 97 D D 95 63 1 00 85 73 1 07 BS 67 1 O1 85 82 1 31 B5 66 94 v '� � � Q SLOPE = 530 SIOPE = 550 S�OPE = 500 SLOPE = 580 S�OPE = 490 z .� � O � � v � �����unu������oo�...�����������������o��..�������....' • ���u���u��������u��o� �u������������������o�uuu��o�iiiiiiiiiii�������iiiiiiiiiCiiCiiiiiCiCi����CCi�iiGiiGGGiiii����� iiiiiiiiiiiiiiiiiiiiiiiii iiiii���o�������iiii�iiiiii�iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii���iiiiiiiiiiiiiiiii����� uu.��nu���u������o�oo����������������� ���� ���uunu�������u����uu������������������ ���� ��t������������������������������������������� ���� ��uu��u������������������n���������������� � � ��� �nnnnt�������������onu����������������� ��� nnnnu���o�u���u��ow��������������u ��� n��nuu���o����o�����o�������������������■ ���n�n�nnn�u��� ■���� �����u�u����� u�nn�u����u���������n��������������������� � � . � nnuu�nnnn�ou���uu���u�������� nnimn�����������������u������������������� ���������nnmu�����������������nt����� un�um����� ��������������������������������������������nun���� �������� ���������� nnnnn��������������������������������������n������������nn � ����������������� nu�mu���������������t�u�����������������������������nuun � ' ������tnn������ nuuuu�����������������n�������������������������unummun��� mmm�■ ����������nun������ iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiniiin � � � ■■■■■■■■■■■■■■ � � �iiiiiiiiiii���ii == =�==========---- � ==== �= =�==�====--- ----- --- - 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Fair 46 66 77 83 Good 41 63 75 81 , Woodland Poor 45 66 77 83 (Coni�erous or broadleaf trees predominate Fair 36 60 73 79 ' Canopy density is at least 50 percent) Good 28 55 70 77 Woodland, Grass Poor 57 73 82 86 (Coniferous or broadleaf trees with canopy Fair 44 65 77 82 , density frcxn 20 to 50 percent) Good 33 58 72 79 URBAN CCNERS - � Residential or Commercial Landscaping Good 32 56 69 75 (Lawn, shrubs, etc ) ' Turf Poor 58 74 83 87 (Irrigated and mowed grass) Fair 44 65 77 82 Good 33 58 72 79 r AGRICULTURAL CUVERS - ' Fallow 76 85 90 92 (Land plawed but not tilled or seeded) , R C F C � W C O RUNpFF INDEX NUMBERS , rJY�R�� �GY 1�ilANUAL FOR PERVIOUS AREA ' PLATE D-5 5(I of 2) ' RUNOFF INDEX NUMBERS OF HYDROLOGIC SOIL-COVER COMPLEXES FOR PERVIOUS AREAS-AMC II , Quality of Soil Group Cover Type (3) Cover (2) A B C D � I � AGRICULTURAL COVERS (cont ) - Legumes, Close Seeded Poor 66 77 85 89 (Alfalfa, sweetclover, timothy, etc ) Good 58 72 81 85 ' Orchards, Deciduous See Note 4 (Apples, apricots, pears, walnuts, etc ) , Orchards, Evergreen Poor 57 73 82 86 (Citrus, avocados, etc ) Fair 44 65 77 82 , Good 33 58 72 79 Pasture, Dryland Poor 67 78 86 89 (Annual grasses) Fair 50 69 79 84 , Good 38 61 74 80 Pasture, Irrigated Poor 58 74 83 87 , (Legumes and perennial grass) Fair 44 65 77 82 Good 33 58 72 79 , Row Crops Poor 72 81 88 91 (Field crops - tomatoes, sugar beets, etc ) Good 67 78 85 89 Small Grain Poor 65 76 84 88 ' (Wheat, oats, barley, etc ) Good 63 75 83 87 ; Vineyard See Note 4 , Notes ' 1 Al1 runoff index (RI) numbers are for Antecedent Moisture Condition (ArtC) zz � 2 Quality of cover definitions Poor-Heavily grazed or regularly burned areas Less than 50 per- cent of the ground surface is protected by plant cover or brush , and tree canopy Fair-Moderate cover with 50 percent to 75 percent of the ground sur- face protected Good-Heavy or dense cover with more than 75 percent of the ground � surface protected 3 See Plate C-2 for a deta�I�d description of cover types , 4 Use runoff index numbers based on ground cover type See discussion under 'Cover �pe Descriptions" on Plate C-2 � 5 Reference Bibliography item 17 I� C F C a W C D RUNOFF INDEX NUMBERS ' rJ`l�R�i ��Y 1�iJANUAL FOR PERVIOUS AREA , PLATE D-5 5(2 of 2) ' ' ACTUAL IMPERVIOUS COVER Recommended Value � Land Use (1) Range-Percent For Average Conditions-Percent(2 ' Natural or Agriculture 0- 10 0 Single Family Residential (3) , 40,000 S F(1 Acre) Lots 10 - 25 20 , 20,000 S F(� Acre) Lots 30 - 45 40 7,200 - 10,000 S F Lots 45 - 55 50 , Multiple Family Residential , Condomliniums 45 - 70 65 Apartments 65 - 90 80 � Mobile Home Park 60 - 85 75 ' Cammercial, Downtown 80 -100 90 Business or Industrial � Notes � 1 Land use should be based on ultimate deve�opment of the watershed Long range master plans for the County and incorporated cities should be reviewed to insure reasonable land use assumptions , 2 Recammended values are based on average conditions which may not apply to a particular study area The percentage unpervious may vary greatly even on comparable sized lots due to differences in ' dwelling size, improvements, etc Landscape practices should also be considered as it is co�mion in some areas to use ornamental grav- els underlain by impervious plastic materials in place of lawns and ' shrubs A field investigation of a study area should always be made, and a review of aerial photos, where available may assist in estuna� ing the percentage of impervious cover in developed areas � 3 For typical horse ranch subdivisions increase impervious area 5 per- cent over the values recommended in the table above ' R C� C a W C O IMPERVIOUS COVER � r�YDR�J� ��Y 1�/JANUAL FOR DEVELOPED AREAS 1 PLATE D-5 6 . 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' ��. ' • � �: � _ � ��� Z G (� 5 �- , ,�i �' 2� , Tc' LIMITATIONS L ��� 1 Maximum length =1000� Tc 1000 90 2 Maximum area = 10 Acres 5 , 80 a 900 � ` o H b ° ' 8��� , 70 Y V o 4 00 Q � o 0 300 � 7�0 60 C i 20� 7 � +- � -� O � � C , � N E � �00 °� 600 a 50 � o.� ,,.. 60 8 0 o ` 0 50 °> °� a rn 3p d � > � � � 0 o c y 20 9 � � T 500 0 ��) `� � �� m �o �0 ' � 35 �' �, � 8 � 3 ° a °' }( q � m `�� \`' °`�. I I � '� — � � �l) c� � � 400 � 30 Undeveloped � m 2 �'< -� � 12 � - Good Cove� � �,��` ,� N a 350 � 25 Undeveloped � �� �� � o o 'c Fa�� Cover �� 6 ~�� i4 "' ' � 5 ' v, � 300 Undeveloped � � 3 `21 , ' �I . � � � 2� Poor Cover o 2 �� _'; 16 = ' ' 9 ° ' ,,: f / 17 � o � � 8 Single Family 50 m � � 250 �- f6 (I/4 Acre) � ; �' IS `- .-. L o 15 Commerc� � � m 20 ~ � � 4 (-P� c c .- ... � 200 � I 3 � � �' o � ' j ° v I J � � � 2�� o � � II � 25 � � ,� o ' ° K EY �' ��� � 9 L Tc�K o � 30 F= m ' a EXAMPLE _ _ ~ 7 (I) L-550�, H-5 0; K- Smgle Family (I/4 Ac ) 35 Development , Tc = 12 6 min ' 6 (2) L=550�, N=5 0�, K= Commercial 100 40 Development , Tc = 9 7 mm ' 5 � 4 Reference Bibl�ogrophy item No 35 R C F C 8t W C � TIME OF CONCENTRATION ' �aY�F�O� ��Y 1�/JANUA� R INITIAL SUBAREA FO ' PLATE D-3 r r � � � � � � � �r � � � � �r � �r � � `�- �o RAINFALL INTENSITY-INCHES PER HOUR � � MIRA LOMA .� MURRIETA � iEMECULA NORCO PALM SPAINOS PERRI5 VALIEY � 6 RANCHO CALIFORNIA � � DURATION FREOUENCY DURATION FREOUENCY DURATION FREOUENCY OURATION FREOUENCY DURAiION FREOUENCY � � MINUTES MINUTES MINUTES MINUTES MINUTES � 10 300 10 100 10 !00 10 100 10 300 � � YEAR YEAR YEAR YE�R YEAR YEAR YEAR YEAR YEAR YEAR 3 2 B♦ ♦♦B 5 3�5 5 10 5 2 77 4 16 5 4 23 6 76 5 2 6t 3 79 ` � 6 2 SB ♦ 07 6 3 12 4 61 6 2 53 3 19 6 3 BO 6 OB 6 2 41 3♦6 �� 7 2 37 3 75 7 2 97 e 24 7 2 34 3 51 7 3♦8 5 56 7 2 2� 3 21 ""— 9 2 21 3 49 8 2 67 3 9♦ 8 2 19 3 29 9 3 22 5 15 B 2 09 3 O1 D' � 9 2 08 3 2B 9 2 50 3 69 9 2 07 3 10 9 3 O1 4 B1 9 1 9B 2 84 � O 10 1 96 3 10 10 2 36 3 48 10 1 96 2 94 10 2 83 4 52 10 1 BB z 69 � 11 1 97 2 95 11 2 2♦ 3 30 il 1 B7 2 80 11 2 67 4 28 11 1 79 2 Si 12 1 78 2 B2 12 2 13 3 15 lz 1 79 2 6B 12 2 54 ♦ 07 12 1 72 2 46 r 13 1 71 2 70 13 2 0♦ 3 O1 13 1 72 2 58 13 2 43 3 98 13 1 65 2 37 1♦ 1 6♦ 2 60 14 1 96 2 89 14 1 66 2�B 14 2 33 3 72 14 1 59 2 29 15 1 5B 2 50 15 1 B9 2 79 15 1 60 2 40 15 2 23 3 58 15 1 5� 2 21 16 1 53 2♦2 16 1 82 2 69 16 1 55 Z 32 16 2 15 3 44 16 1�9 2 14 17 1♦B 2 3� 17 1 76 2 60 17 1 50 2 25 17 2 OB 3 32 17 1♦5 2 OB 1B 1♦4 2 27 19 1 71 2 52 18 1♦6 2 19 18 2 O1 3 22 18 1♦1 2 02 19 1 40 2 21 19 1 66 2 45 19 1♦2 2 13 19 1 95 3 12 19 1 37 1 9T 20 1 36 2 15 20 1 61 2 3B 20 1 39 Z OB 20 1 B9 3 03 20 1 3♦ 1 92 22 1 29 2 0� 22 1 53 2 26 22 1 32 1 9B 22 1 79 2 66 22 1 29 1 63 2� 1 2� 1 95 2♦ 1�6 2 15 24 1 26 1 90 20 1 70 2 12 24 1 22 1 75 26 1 1B 1 B7 26 1 39 2 06 26 1 22 1 B2 26 1 62 2 60 26 1 19 1 69 29 1 1• 1 BO 29 1 30 1 98 28 1 17 1 76 2B 1 56 2♦9 29 1 13 1 63 30 1 10 1 73 30 1 29 1 90 30 1 13 1 70 30 1♦9 2 39 30 1 10 � 57 32 1 06 1 67 32 1 2� 1 B� 32 I 10 1 6� 32 1♦♦ 2 30 32 1 06 1 52 z 3� 1 03 1 62 3� 1 20 1 7B 34 1 06 1 59 34 1 39 2 22 34 1 03 1♦B ,� 36 1 00 1 57 36 1 17 1 72 36 1 03 1 55 36 1 34 2 15 36 1 00 1 M4 m 3B 97 1 53 39 1 13 1 67 38 1 01 1 51 38 1 30 2 09 38 48 1♦0 n � z �0 9♦ 1♦9 ♦0 1 10 1 62 40 9B 1 47 40 1 27 2 02 ♦0 95 1 37 �(n (n �5 B9 1 40 ♦5 1 03 1 52 45 92 1 39 45 1 1B 1 99 45 90 1 29 ��� 50 84 1 32 50 97 1♦4 50 BB 1 31 50 1 11 1 T6 50 BS 1 22 55 BO 1 26 55 92 1 36 55 8� 1 25 55 1 05 1 6B 55 B1 1 17 �� z 60 76 1 20 60 88 1 30 60 80 1 20 60 1 00 1 60 60 78 1 12 I � 65 73 1 15 65 B4 1 24 65 77 1 15 65 95 1 53 65 75 1 08 � � D 70 70 1 11 70 91 1 19 70 74 1 I1 70 91 1 46 70 72 1 04 r D � C � 75 68 1 07 75 7B 1 15 75 72 1 07 75 98 1�1 75 70 1 00 m D � Q BO 65 1 03 90 75 1 11 90 69 1 04 BO BS 1 35 80 6B 97 D D B5 63 1 00 85 '►3 1 07 B5 67 1 O1 85 82 1 31 B5 66 9� v '� � O SLOPE a 530 SLOPE s 550 SLOPE a 500 SLOPE = 580 S�OPE _ ♦90 � — z � � O � � v • � �N■�H�NM��NA�����AN�BN�N��tvNM��A ■■■����NN ����■�■���H������n��n��■����■■■���■�����n�������■n�����\�■■�■���� ��������■��■����■����■�������■■■�■������■■■�■��■�■����■�■�■■■�■���U�� �����■��■■������■����■��■����■���■�■����■�����■�■��■�■������■�����■�\� �■��N���■��������■■������■���■■■����■��������■�����■������■��■��■�■�� �■■���■�N���!■����■�������■���������■�■�������������■��■���■��������■ ��■��■��N��U����h■■H����■■�n����������■N�■���■■��■■ u����■■�■�■ ■����■■�■����■�■N�����N�■■■■N■����■■������■����■�■�■������N�■��N■ ■�■■�■��N��������■�����■�����������■����■�����■�■■������������������■ . ■���■����■■�����■■��■��■�■���■���■�����■■�������■�■�h■�������■■��■■ �n����N�■■�■��■■���■���■■■��■■■��■���■■����■��������■■������■��■���■ :.�l�CGi�'ii����E'■�aiil�ll����������!�����!����������������a����������■M��� l���v��N■■�l�IRr�'�ML:L�■��:=�������������������■��■���������������■�����■ ■�■■�■■�:tZ�.y!��►V+± �'�i�N�����■■���■������.:���i����������������H��■���■■ ���������±��.�H�R7■�■����!_�.�����ii:�N ���■■�!i��N��!G'i'� \�f�li�!<<�7�����!=����■���������i������������� ���������������■�■■��� H��i����■�:7 \�ili�!��eGt ■�i�NN�l�IS�i�R�� ���■�n���J�i�mA . �■■������!�lltnlyi��■wl�■■�!�i��■�������!�i���■����!��������l���������■��� ' ����■■/i/!ay%N�l�lrllJi! ��■■�►%it�Jl���n� ;�T:J! ■■��I ■��i ���i�■Iiuyri'■H■■l ■■I��/���la��Nl��w�i �.I.���%■■ I.�■������N���l�.l';Ai��C��i���■■���■��i����������i�■■�■���������■��■���■ I������%%���■N ���I �■��%�����L�1 iK! 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' � � C �4�kl l Q.0 I v �D � ' �� � �D � �� �T-16 �- 0 • � � �d ' � � 0 a � � e � � � ' O` � � � � =� �' � ! , l >� 2 $ � .�_� �„� a � ' t�lfd ,� QOO � � �° ----� � �� � ` 8 0 T2 ' LE ' Qtoa" �`l �lv CF'S ( Q °?� 1lCE"S� SA�T� CC�ff�.T�t�tS ' � �v c �s ' S1v��(.iN� �� �-S`1��.�Ai-tN� �1 , T l� S � ' Apex Engineenng PLLC � StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 2 , CLEARHIS ' ROUTEHYD � THRU [Stormline 3 8� Stormlme 7] USING TYPE1A AND [10 yr] NOTZERO RELATIVE Reach Area Fiow Full Q% Full nDepth Size nVel fVel CBasin / Hyd ---- ac cfs cfs ratio ft ftls ffls --- -— 16 20 0 2000 4 4100 21 5818 0 20 0 4600 18 Diam 9 5937 12 2128 4 41 ' 6 7 0 2000 73 3000 520 93 0 14 0 8869 42 Diam 38 2324 54 1443 73 3 7 20 0 2000 73 3000 85 9559 0 85 2 4850 42 Diam 10 0336 8 9341 20 8 0 4000 77 7100 85 4215 0 91 2 6197 42 Diam 10 0608 8 8785 8 OUT2 0 4000 77 7100 105 85 0 73 2 5467 48 Diam 9 2046 8 4233 ' -- Rch App Bend Junct HW Max EI/ Loss Head Loss Loss Elev Rim EI From Node To Node ft ft ft ft ft ft ' OUTLET2 1138 0400 ST 8 OUTLET2 1139 4530 1 0130 0 0088 1138 4489 1138 8400 ST 20 ST 8 1141 0124 0 9013 0 0104 0 0445 1140 1660 1140 3800 ST 16 ST 20 1140 3673 — 1140 3673 1140 5601 ' ST 7 ST 20 1142 8318 0 9013 1 1596 1143 0901 1153 4200 ST 6 ST 7 1152 7884 na na na 1152 7883 1154 2700 ROUTEHYD 0 THRU [Stormline 3 8� Stormline 7] USING TYPE1A AND (100 yr] NOTZERO ' RELATIVE Reach Area Flow Full Q% Full nDepth Size nVel fVel CBasin / Hyd ac cfs cfs ratio ft --- ff/s ff/s -- -- 16 20 0 2000 6 6600 21 5818 0 31 0 5720 18 Diam 10 7582 12 2128 6 66 ' 6 7 0 2000 73 3000 520 93 0 14 0 8869 42 Diam 38 2324 54 1443 73 3 7 20 0 2000 73 3000 85 9559 0 85 2 4850 42 Diam 10 0336 8 9341 20 8 0 4000 79 9600 85 4215 0 94 2 6863 42 Diam 10 0910 8 8785 8 OUT2 0 4000 79 9600 105 85 0 76 2 5976 48 Diam 9 2573 8 4233 ' -- Rch App Bend Junct HW Max EI/ --- — Loss Head Loss Loss Elev Rim EI From Node To Node ft ft ft ft ft ft ' OUTLET2 1138 0400 ST 8 OUTLET2 1139 5361 1 0725 0 0093 1138 4729 1138 8400 ST 20 ST 8 1141 1871 0 2206 0 1083 0 0162 1140 4800 1140 3800 ST 16 ST 20 1140 9390 — 1140 6600 1140 5601 � ST 7 ST 20 1143 1458 0 9013 1 1596 — 1143 4041 1153 4200 ST 6 ST 7 1152 7884 na na na 1152 7883 1154 2700 Layout Report Stormline 3& Stormline 7 ' Pro�ect Precips [2 yr] 2 10 m [5 yr) 3 10 m � [10 yr] 3 65 in [25 yrj 4 50 in [100 yr] 6 00 in [Other] 1 27 in � Reach Records ' Reach ID 16-20 Section Properties Shape Circular Routing Method Travel Time Translation , Size Material Mannings n Hyd params By 18 Diam Conc Spun 0 0130 Mannings Formula Length Slope Entrance Loss ' 48 6200 ft 4 20 % Groove End Pro�ecting , Apex Engineering PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 3 ' Diam 1 5000 ft , Up Node Dn Node Up Invert Dn Invert ST 16 ST-20 1136 5601 ft 1134 5200 ft Conduit Constraints Min Vel Max Vel Min Cov Min Slope Max Slope Min drop � 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft In/Exfil Hold Up Hold Dn Match Inv Allow Smalier 0 0000 in/hr NO NO YES NO � Conduit Summary Tnb Area Flow Capacity Velocity Normal Depth 0 2000 ac 6 6600 cf 21 5818 cf 10 7582 ft/s 0 5720 ft Ent Loss Exit Loss Frict Loss Start TW ' 0 044111 ft 0 220557 ft 0 194347 ft 1140 4800 ft Reach ID 20-8 ' Section Properties Shape Circular Routing Method Travel Time Translation Size Material Mannings n Hyd params By � 42 Diam Conc Spun 0 0130 Mannings Formula Length Slope Entrance Loss 227 2200 ft 0 72 % Groove End Pro�ecting Diam ' 3 5000 ft Up Node Dn Node Up Invert Dn Invert ST 20 ST-8 1134 2800 ft 1132 6500 ft ' Conduit Constraints Min Vei Max Vel Min Cov Min Slope Max Slope Mm drop 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft In/Exfil Hold Up Hold Dn Match Inv Allow Smaller ' 0 0000 in/hr NO NO YES NO Conduit Summary Tnb Area Flow Capacity Velocity Normal Depth 0 4000 ac 79 9600 cf 85 4215 cf 10 0910 ft/s 2 6863 ft , Ent Loss Exit Loss Frict Loss Start TW 0 214505 ft 1 072527 ft 1 427125 ft 1138 4729 ft ' Reach ID 6-7 Section Properties Shape Circular Routmg Method Travel Time Translation ' Size Material Mannmgs n Hyd params By 42 Diam Conc Spun 0 0130 Mannmgs Formula Length Slope Entrance Loss 45 6400 ft 26 67 % Groove End Pro�ecting ' Diam 3 5000 ft Up Node Dn Node Up Invert Dn Invert , ST 6 ST 7 1149 0000 ft 1136 8300 ft Conduit Constraints Min Vel Max Vel Min Cov Min Siope Max Slope Min drop 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft � In/Exfd Hoid Up Hold Dn Match Inv Allow Smaller 0 0000 m/hr NO NO YES NO Conduit Summary ' Tnb Area Flow Capacity Velocity Normal Depth , Apex Engineenng PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 4 ' 0 2000 ac 73 3000 cf 520 9288 cf 38 2324 ft/s 0 8869 ft Ent Loss Exit Loss Frict Loss Start TW � 0 180260 ft 0 901302 ft 0 240892 ft 1143 4041 ft Reach ID 7-20 � Section Properties Shape Circular Routing Method Travel Time Translation Size Matenal Mannings n Hyd params By 42 Diam Conc-Spun 0 0130 Mannings Formula ' Length Slope Entrance Loss 300 1500 ft 0 73 % Groove End Pro�ectmg Diam 3 5000 ft ' Up Node Dn Node Up Invert Dn Invert ST 7 ST 20 1136 5000 ft 1134 3199 ft Conduit Constraints ' Mm Vel Max Vel Mm Cov Mm Slope Max Slope Min drop 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft In/Exfil Hold Up Hold Dn Match Inv Allow Smalier 0 0000 in/hr NO NO YES NO ' Conduit Summary Tnb Area Flow Capacity Velocity Normal Depth 0 2000 ac 73 3000 cf 85 9559 cf 10 0336 ft/s 2 4850 ft ' Ent Loss Exit Loss Fnct Loss Start TW 0 180260 ft 0 901302 ft 1 584222 ft 1140 4800 ft , Reach ID 8-OUT2 Section Properties Shape Circular Routing Method Travel Time Translation Size Material Mannings n Hyd params By ' 48 Diam Conc Spun 0 0130 Mannings Formula Length Slope Entrance Loss 240 6900 ft 0 54 % Groove End Pro�ecting � Diam 4 0000 ft Up Node Dn Node Up Invert Dn Invert ST 8 OUTLET2 1132 6100 ft 1131 3101 ft � Conduit Constraints Min Vel Max Vel Min Cov Min Slope Max Slope Min drop 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft ' In/Exfil Hold Up Hold Dn Match Inv Allow Smaller 0 0000 in/hr NO NO YES NO Conduit Summary Trib Area Flow Capacity Velocity Normal Depth ' 0 4000 ac 79 9600 cf 105 8498 cf 9 2573 ft/s 2 5976 ft Ent Loss Exit Loss Frict Loss Start TW 0 125739 ft 0 628696 ft 0 741623 ft 1138 0400 ft , Node Records , Node ID OUTLET2 Desc Manhole structure Start EI 1131 3101 ft Max EI 1150 0000 ft Northing 10716 0000 ft East�ng 8606 0000 ft ' ' Apex Engineenng PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 5 , Contrib Basm Contnb Hyd Hgl Elev 1138 0400 ft ' Node ID ST-16 Desc Manhole structure � Start EI 1136 5601 ft Max EI 1140 5601 ft Contrib Basin Contrib Hyd 6 66 Hgl Elev 1140 6600 ft Struct Type CB TYPE 1 48 Classification Catch Basin ' Ke Descrip CMP Headwall or Headwall & Wmgwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf Condition No particular shape Status Proposed Structure Approach Credit 0 0000 ft , Node ID ST-20 Desc Manhole structure ' Start EI 1134 2800 ft Max EI 1140 3800 ft Northing 10954 0000 ft Easting 8588 0000 ft Contnb Basin Contnb Hyd � Hgl Elev 1140 4800 ft Struct Type CB TYPE 1-48 Classification Catch Basin Ke Descnp CMP Headwall or Headwall & Wingwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf � Condition No particular shape Status Proposed Structure Approach Credit 0 2206 ft Bend Loss 0 1083 ft Junction Loss 0 0162 ft , Node ID ST-6 Desc STORM VAULT ' Start EI 1149 0000 ft Max EI 1154 2700 ft Contrib Basin Contnb Hyd 73 3 Hgl Elev 1152 7883 ft � Node ID ST-7 Desc Manhole structure Start EI 1136 5000 ft Max EI 1153 4200 ft , Contrib Basin Contrib Hyd Hgl Elev 1143 4041 ft Struct Type CB TYPE 1 48 Classification Catch Basin ' Ke Descnp CMP Headwall or Headwall & Wingwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf Condition No particular shape Status Proposed Structure Approach Credit 0 9013 ft � Node ID ST-8 Desc Manhole structure , Start EI 1132 6100 ft Max EI 1138 8400 ft Contnb Basin Contrib Hyd Hgl Elev 1138 4729 ft Struct Type CB TYPE 1 48 Classification Catch Basin , Ke Descnp CMP Headwall or Headwall & Wingwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf Condition No particular shape Status Proposed Structure ' Approach Credit 1 0725 ft ' Apex Engineenng PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 6 ' Layout Hydrographs ' Hydrograph ID OUTLET2 - 10 yr Area 0 4000 ac Hyd Int 10 00 min Base Flow 77 6726 cfs � Pending tt translation 1 33 min Peak Fiow 77 7100 cfs Peak Time 8 17 hrs Hyd Vol 106 4902 acft Time Flow Time Flow Time Flow hr cfs hr cfs hr cfs ' 7 67 77 6736 13 33 77 7016 18 67 77 6996 7 83 77 6846 13 50 77 7019 18 83 77 6997 8 00 77 7063 13 67 77 7014 19 00 77 6998 8 17 77 7100 13 83 77 7009 19 17 77 6989 � 8 33 77 7045 14 00 77 7012 19 33 77 6980 8 50 77 7093 14 17 77 7015 19 50 77 6981 8 67 77 7077 14 33 77 7018 19 67 77 6982 8 83 77 7050 14 50 77 7021 19 83 77 6983 , 9 00 77 7074 14 67 77 7015 20 00 77 6985 9 17 77 7048 14 83 77 7009 20 17 77 6986 9 33 77 7016 15 00 77 7011 20 33 77 6987 9 50 77 7029 15 17 77 7014 20 50 77 6988 9 67 77 7025 15 33 77 7016 20 67 77 6989 ' 9 83 77 7019 15 50 77 7019 20 83 77 6990 10 00 77 7029 15 67 77 7Q12 21 00 77 6991 10 17 77 7020 15 83 77 7005 21 17 77 6992 10 33 77 7011 16 00 77 7007 21 33 77 6994 ' 10 50 77 7018 16 17 77 7009 21 50 77 6995 10 67 77 7012 16 33 77 7011 21 67 77 6996 10 83 77 7006 16 50 77 7013 21 83 77 6997 11 00 77 7012 16 67 77 7015 22 00 77 6998 11 17 77 7011 16 83 77 7017 22 17 77 6988 � 11 33 77 7010 17 00 77 7019 22 33 77 6977 11 50 77 7015 17 17 77 7011 22 50 77 6978 11 67 77 7013 17 33 77 7003 22 67 77 6979 11 83 77 7011 17 50 77 7005 22 83 77 6980 ' 12 00 77 7015 17 67 77 7007 23 00 77 6981 12 17 77 7013 17 83 77 7008 23 17 77 6982 12 33 77 7009 18 00 77 7010 23 33 77 6982 12 50 77 7013 18 17 77 7001 23 50 77 6983 � 12 67 77 7010 18 33 77 6993 23 67 77 6984 12 83 77 7006 18 50 77 6994 23 83 77 6985 13 00 77 7009 18 67 77 6996 24 00 77 6986 13 17 77 7012 18 83 77 6997 24 17 77 6856 ' Hydrograph ID OUTLET2 - 100 yr Area 0 4000 ac Hyd Int 10 00 min Base Flow 79 9226 cfs Pending tt translation 1 33 min � Peak Flow 79 9600 cfs Peak Time 8 17 hrs Hyd Vol 109 5739 acft Time Flow Time Flow Time Flow hr cfs hr cfs hr cfs ' 7 67 79 9236 13 33 79 9516 18 67 79 9496 7 83 79 9346 13 50 79 9519 18 83 79 9497 8 00 79 9563 13 67 79 9514 19 00 79 9498 8 17 79 9600 13 83 79 9509 19 17 79 9489 8 33 79 9545 14 00 79 9512 19 33 79 9480 � 8 50 79 9593 14 17 79 9515 19 50 79 9481 8 67 79 9577 14 33 79 9518 19 67 79 9482 8 83 79 9550 14 50 79 9521 19 83 79 9483 9 00 79 9574 14 67 79 9515 20 00 79 9485 � 9 17 79 9548 14 83 79 9509 20 17 79 9486 9 33 79 9516 15 00 79 9511 20 33 79 9487 9 50 79 9529 15 17 79 9514 20 50 79 9488 9 67 79 9525 15 33 79 9516 20 67 79 9489 9 83 79 9519 15 50 79 9519 20 83 79 9490 ' , Apex Engmeering PLLC � StormShed Report Thursday September 07 2006 P�ect 28632 CONVEYANCE 090706 Pa e 7 ' 10 00 79 9529 15 67 79 9512 21 00 79 9491 10 17 79 9520 15 83 79 9505 21 17 79 9492 10 33 79 9511 16 00 79 9507 21 33 79 9494 ' 10 50 79 9518 16 17 79 9509 21 50 79 9495 10 67 79 9512 16 33 79 9511 21 67 79 9496 10 83 79 9506 16 50 79 9513 21 83 79 9497 11 00 79 9512 16 67 79 9515 22 00 79 9498 , 11 17 79 9511 16 83 79 9517 22 17 79 9488 11 33 79 9510 17 00 79 9519 22 33 79 9477 11 50 79 9515 17 17 79 9511 22 50 79 9478 11 67 79 9513 17 33 79 9503 22 67 79 9479 11 83 79 9511 17 50 79 9505 22 83 79 9480 ' 12 00 79 9516 17 67 79 9507 23 00 79 9481 12 17 79 9513 17 83 79 9508 23 17 79 9482 12 33 79 9509 18 00 79 9510 23 33 79 9482 12 50 79 9513 18 17 79 9501 23 50 79 9483 , 12 67 79 9510 18 33 79 9493 23 67 79 9484 12 83 79 9506 18 50 79 9494 23 83 79 9485 13 00 79 9509 18 67 79 9496 24 00 79 9486 13 17 79 9512 18 83 79 9497 24 17 79 9356 ' ' ' � , � ' ' , ' ' ' , Apex Engmeenng PLLC � StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 1 , , � , -1 • , «�� o � � , 3 , � � � � �b �. �� ' T3 � , 3 LET � � ,�_ . ---�--� OUTLET 1 � t �� � � ��� J ' �� � � � `��O � � �� G ,���°�� �� 5 ���� (�� 1 1 ' ��At�! �E �! t� TS � 1 � 1 ' Apex Engineering PLLC � StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 2 � CLEARHIS � ROUTEHYD � THRU [STORMLINE 1] USING TYPE1A AND [10 yr] NOTZERO ACTUAL Reach Area Flow Full Q% Full nDepth Size nVel fVel CBasin I Hyd , --- ac cfs cfs rat�o ft ---- ftls ft!s ------ --- 1 3 0 2000 8 8800 27 1253 0 33 0 7875 24 Diam 7 7289 8 6342 8 88 3 OUTLET 0 2000 8 8800 52 4666 0 17 0 5567 24 Diam 12 4347 16 7006 ' -- Rch App Bend Junct HW Max Eil Loss Head Loss Loss Elev Rim EI From Node To Node ft ft ft ft ft ft OUTLET 1 1141 8200 ' ST 3 OUTLET 1 1146 5708 0 9276 0 0031 _ 1145 6462 1150 0000 ST 1 ST 3 1147 6600 1147 6600 1150 5699 ROUTEHYD 0 THRU [STORMLINE 1] USING TYPE1A AND [100 yr] NOTZERO ACTUAL 1 Reach Area Flow Full Q% Full nDepth Size nVel fVel CBasin / Hyd ac cfs cfs ratio ft ft/s ftJs 1 3 0 2000 14 4300 27 1253 0 53 1 0375 24 Diam 8 7678 8 6342 14 43 3 OUTLET 0 2000 14 4300 52 4666 0 28 0 7169 24 Diam 14 2544 16 7006 � — Rch App Bend Junct HW Max EI/ Loss Head Loss Loss Elev Rim EI From Node To Node ft ft ft ft ft ft � OUTLET 1 — ^ ' 1141 8200 ST 3 OUTLET 1 1147 1261 1 1937 0 0039 1145 9363 1150 0000 ST 1 ST 3 1148 2153 1148 2153 1150 5699 ' Layout Report STORMLINE 1 Pro�ect Precips [2 yr] 2 10 in , [5 yr] 3 10 m [10 yr] 3 65 in [25 yr] 4 50 in , [100 yr) 6 00 in [Other] 1 27 in Reach Records ' Reach ID 1-3 Section Properties � Shape Circular Routing Method Travel Time Translation Size Matenal Mannings n Hyd params By 24 Diam Conc Spun 0 0130 Mannmgs Formula � Length Slope Entrance Loss 59 7200 ft 1 43 % Groove End Pro�ecting Diam 2 0000 ft � Up Node Dn Node Up Invert Dn Invert ST-1 ST 3 1146 1500 ft 1145 3000 ft Condu�t Constraints � Min Vel Max Vel Min Cov Min Slope Max Slope Min drop 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft In/Exfil Hold Up Hold Dn Match Inv Allow Smaller 0 0000 in/hr NO NO YES NO ' , Apex Engmeenng PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 3 , Conduit Summary Tnb Area Flow Capacity Velocity Normal Depth ' 0 2000 ac 14 4300 cf 27 1253 cf 8 7678 ft/s 1 0375 ft Ent Loss Exit Loss Fnct Loss Start TW 0 238742 ft 1 193709 ft 0 241616 ft 1146 6686 ft � Reach ID 3-OUTLET Section Properties Shape Circular Routing Method Travel Time Translation , Size Matenal Mannings n Hyd params By 24 Diam Conc Spun 0 0130 Mannings Formula Length Slope Entrance Loss � 139 4100 ft 5 35 % Groove End Pro�ecting Diam 2 0000 ft Up Node Dn Node Up Invert Dn Invert � ST 3 OUTLET 1 1145 1000 ft 1137 6400 ft Condu�t Constraints Min Vel Max Vel Min Cov Min Slope Max Slope Min drop , 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft In/Exfil Hold Up Hold Dn Match Inv Allow Smaller 0 0000 in/hr NO NO YES NO Conduit Summary ' Tnb Area Flow Capaaty Velocity Normal Depth 0 2000 ac 14 4300 cf 52 4666 cf 14 2544 ft/s 0 7169 ft Ent Loss Exit Loss Fnct Loss Start TW � 0 065521 ft 0 327603 ft 0 564027 ft 1141 8199 ft Node Records r Node ID OUTLET 1 Desc Manhole structure Start EI 1143 1100 ft Max EI 1150 0000 ft � Northing 11199 0000 ft Easting 9596 0000 ft Contrib Basm Contrib Hyd Hgl Elev 1141 8199 ft ' Node ID ST Desc inlet structure 1 � Start EI 1146 1500 ft Max EI 1150 5699 ft Northing 11383 0000 ft Easting 9494 0000 ft Contnb Basin Contnb Hyd 14 43 Hgl Elev 1148 2153 ft � Struct Type CB TYPE 1 48 Classification Catch Basin Ke Descrip CMP Headwall or Headwall & Wmgwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf � Condition No particular shape Status Proposed Structure Approach Credit 0 0000 ft , � ' Apex Engmeenng PLLC � StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 4 � Node ID ST-3 Desc JUNCTION structure 3 ' Start EI 1145 1000 ft Max EI 1150 0000 ft Northing 11383 0000 ft Easting 9494 0000 ft Contrib Basin Contnb Hyd Hgl Elev 1145 9363 ft ' Struct Type CB TYPE 1-48 Classification Catch Basin Ke Descnp CMP Headwall or Headwall & Wingwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf � Condition No particular shape Status Proposed Structure Approach Credit 1 1937 ft � Layout Hydrographs Hydrograph ID OUTLET 1- 10 yr ' Area 0 2000 ac Hyd Int 10 00 min Base Flow 8 8613 cfs Pending tt translation 0 32 min Peak Flow 8 8800 cfs Peak Time 8 17 hrs Hyd Vol 12 1637 acft Time Flow Time Flow Time Flow � hr cfs hr cfs hr cfs 7 67 8 8618 13 33 8 8758 18 67 8 8748 7 83 8 8673 13 50 8 8760 18 83 8 8748 8 00 8 8782 13 67 8 8757 19 00 8 8749 � 8 17 8 8800 13 83 8 8755 19 17 8 8745 8 33 8 8773 14 00 8 8756 19 33 8 8740 8 50 8 8796 14 17 8 8758 19 50 8 8741 8 67 8 8789 14 33 8 8759 19 67 8 8741 � 8 83 8 8775 14 50 8 8760 19 83 8 8742 9 00 8 8787 14 67 8 8757 20 00 8 8742 9 17 8 8774 14 83 8 8754 20 17 8 8743 9 33 8 8758 15 00 8 8756 20 33 8 8743 9 50 8 8764 15 17 8 8757 20 50 8 8744 ' 9 67 8 8762 15 33 8 8758 20 67 8 8745 9 83 8 8760 15 50 8 8759 20 83 8 8745 10 00 8 8764 15 67 8 8756 21 00 8 8746 10 17 8 8760 15 83 8 8752 21 17 8 8746 ' 10 33 8 8755 16 00 8 8753 21 33 8 8747 10 50 8 8759 16 17 8 8754 21 50 8 8747 10 67 8 8756 16 33 8 8755 21 67 8 8748 10 83 8 8753 16 50 8 8757 21 83 8 8748 11 00 8 8756 16 67 8 8758 22 00 8 8749 ' 11 17 8 8756 16 83 8 8759 22 17 8 8744 11 33 8 8755 17 00 8 8760 22 33 8 8739 11 50 8 8758 17 17 8 8756 22 50 8 8739 11 67 8 8757 17 33 8 8752 22 67 8 8739 , 11 83 8 8755 17 50 8 8752 22 83 8 8740 12 00 8 8758 17 67 8 8753 23 00 8 8740 12 17 8 8756 17 83 8 8754 23 17 8 8741 12 33 8 8755 18 00 8 8755 23 33 8 8741 12 50 8 8757 18 17 8 8751 23 50 8 8742 ' 12 67 8 8755 18 33 8 8746 23 67 8 8742 12 83 8 8753 18 50 8 8747 23 83 8 8743 13 00 8 8754 18 67 8 8748 24 00 8 8743 13 17 8 8756 18 83 8 8748 24 17 8 8678 i 1 t , Apex Engineenng PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 5 � Hydrograph ID OUTLET 1- 100 yr Area 0 2000 ac Hyd Int 10 00 min Base Flow 14 4113 cfs ' Pending tt translation 0 28 min Peak Flow 14 4300 cfs Peak Time 8 17 hrs Hyd Vol 19 7701 acft Time Flow Time Flow Time Flow hr cfs hr cfs hr cfs ' 7 67 14 4118 13 33 14 4258 18 67 14 4248 7 83 14 4173 13 50 14 4260 18 83 14 4248 8 00 14 4282 13 67 14 4257 19 00 14 4249 8 17 14 4300 13 83 14 4255 19 17 14 4245 � 8 33 14 4273 14 00 14 4256 19 33 14 4240 8 50 14 4296 14 17 14 4258 19 50 14 4241 8 67 14 4289 14 33 14 4259 19 67 14 4241 8 83 14 4275 14 50 14 4260 19 83 14 4242 � 9 00 14 4287 14 67 14 4257 20 00 14 4242 9 17 14 4274 14 83 14 4254 20 17 14 4243 9 33 14 4258 15 00 14 4256 20 33 14 4243 9 50 14 4264 15 17 14 4257 20 50 14 4244 9 67 14 4262 15 33 14 4258 20 67 14 4245 � 9 83 14 4260 15 50 14 4259 20 83 14 4245 10 00 14 4264 15 67 14 4256 21 00 14 4246 10 17 14 4260 15 83 14 4252 21 17 14 4246 10 33 14 4255 16 00 14 4253 21 33 14 4247 � 10 50 14 4259 16 17 14 4254 21 50 14 4247 10 67 14 4256 16 33 14 4255 21 67 14 4248 10 83 14 4253 16 50 14 4257 21 83 14 4248 11 00 14 4256 16 67 14 4258 22 00 14 4249 � 11 17 14 4256 16 83 14 4259 22 17 14 4244 11 33 14 4255 17 00 14 4260 22 33 14 4239 11 50 14 4258 17 17 14 4256 22 50 14 4239 11 67 14 4257 17 33 14 4252 22 67 14 4239 11 83 14 4255 17 50 14 4252 22 83 14 4240 � 12 00 14 4258 17 67 14 4253 23 00 14 4240 12 17 14 4256 17 83 14 4254 23 17 14 4241 12 33 14 4255 18 00 14 4255 23 33 14 4241 12 50 14 4257 18 17 14 4251 23 50 14 4242 � 12 67 14 4255 18 33 14 4246 23 67 14 4242 12 83 14 4253 18 50 14 4247 23 83 14 4243 13 00 14 4254 18 67 14 4248 24 00 14 4243 13 17 14 4256 18 83 14 4248 24 17 14 4178 ' ' L ' � � � ' Apex Engineenng PLLC � StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 1 � � � ' � o J ` ' � � � e ' /� ��w � • �---°'�T-9 ' .� �� �� � —. �/M���� � ° 1 ��� . 1 s-a u ET � ' , � � 4 OU T4 � i �� — = � 3`� �'s� - ____°.._--- = l2 73 � FS � �e� � Q toc �---°�.��-` ' S �� C���.����� ��_ � �� � i � ST� �dL dl�! � �' !D N T' S � � � Apex Engmeenng PLLC ' StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Page 2 ' CLEARHIS ' ROUTEHYD � THRU [STORMLINE 10] USING TYPE1A AND [10 yr] NOTZERO RELATIVE Reach Area Flow Full Q% Full nDepth Size nVel fVel CBasin / Hyd � ac cfs cfs ratio ft - ft/s ft/s - 9 OUTLET 4 0 2000 S 3400 19 5393 0 43 0 9126 24 Diam 5 9736 6 2195 8 34 Rch App Bend Junct HW Max EI/ ' Loss Head Loss Loss Elev Rim EI From Node To Node ft ft ft ft ft ft OUTLET4 1139 2200 ST 9 OUTLET4 1139 6470 — — — 1139 6470 1141 2200 ' ROUTEHYD � THRU [STORMLINE 10] USING TYPE1A AND [100 yr] NOTZERO RELATIVE Reach Area Flow Full Q% Full nDepth Size nVel fVel CBasin / Hyd ac cfs cfs ratio ft - ftls ftls -- - ' 9 OUTLET 4 0 2000 12 7300 19 5393 0 65 1 1763 24 Diam 6 6247 6 2195 12 73 — Rch App Bend Junct HW Max EI/ Loss Head Loss Loss Elev Rim EI ' From Node To Node ft ft ft ft ft ft OUTLET4 1139 2200 ST 9 OUTLET4 1140 2147 — 1140 2147 1141 2200 ' Layout Report STORMLINE 10 Pro�ect Prec�ps [2 yr] 2 10 in � [5 yrJ 3 10 in [10 yr] 3 65 in [25 yr] 4 50 in ' [100 yr] 6 00 in [Other] 1 27 in Reach Records ' Reach ID 9-OUTLET 4 ' Section Properties Shape Circular Routing Method Travel Time Translation Size Matenal Mannings n Hyd params By 24 Diam Conc Spun 0 0130 Mannings Formula � Length Slope Entrance Loss 218 7500 ft 0 74 % Groove End Pro�ecting Diam 2 0000 ft ' Up Node Dn Node Up Invert Dn Invert ST 9 OUTLET4 1136 2000 ft 1134 5800 ft Conduit Constraints � Min Vel Max Vel Min Cov Mm Slope Max Slope Min drop 2 0000 ft 15 0000 ft 3 0000 ft 0 5000 ft 2 0000 ft 0 0000 ft In/Exfil Hold Up Hold Dn Match Inv Allow Smaller 0 0000 in/hr NO NO YES NO ' Condu�t Summary Trib Area Fiow Capacity Velocity Normal Depth 0 2000 ac 12 7300 cf 19 5393 cf 6 6247 ft/s 1 1763 ft , Ent Loss Exit Loss Frict Loss Start TW ' Apex Engineenng PLLC , StormShed Report Thursday September 07 2006 Pro�ect 28632 CONVEYANCE 090706 Pa e 3 , 0 050992 ft 0 254960 ft 0 688777 ft 1139 2200 ft Node Records � Node ID OUTLET4 Desc OUTLET , Start EI 1134 2400 ft Max EI 1150 0000 ft Northing 10716 0000 ft Easting 8606 0000 ft Contrib Basin Contnb Hyd , Hgi Elev 1139 2200 ft Node ID ST-9 , Desc Manhole structure Start EI 1136 2000 ft Max EI 1141 2200 ft Contrib Basin Contnb Hyd 12 73 Hgl Elev 1140 2147 ft , Struct Type CB TYPE 1 48 Classification Catch Basin Ke Descrip CMP Headwall or Headwall & Wingwall sq edge ke=0 5 Catch Depth 1 5000 ft Bot Area 12 5664 sf Condition No particular shape Status Proposed Structure , Approach Credit 0 0000 ft Layout Hydrographs 1 Hydrograph ID OUTLET4 - 100 yr Area 0 2000 ac Hyd Int 10 00 min Base Flow 12 7113 cfs ' Pending tt translation 0 55 min Peak Flow 12 7300 cfs Peak Time 8 17 hrs Hyd Vol 17 4402 acft Time Flow Time Flow Time Flow ' hr cfs hr cfs hr cfs 7 67 12 7118 13 33 12 7258 18 67 12 7248 7 83 12 7173 13 50 12 7260 18 83 12 7248 8 00 12 7282 13 67 12 7257 19 00 12 7249 ' 8 17 12 7300 13 83 12 7255 19 17 12 7245 8 33 12 7273 14 00 12 7256 19 33 12 7240 8 50 12 7296 14 17 12 7258 19 50 12 7241 8 67 12 7289 14 33 12 7259 19 67 12 7241 8 83 12 7275 14 50 12 7260 19 83 12 7242 ' 9 00 12 7287 14 67 12 7257 20 00 12 7242 9 17 12 7274 14 83 12 7254 20 17 12 7243 9 33 12 7258 15 00 12 7256 20 33 12 7243 9 50 12 7264 15 17 12 7257 20 50 12 7244 , 9 67 12 7262 15 33 12 7258 20 67 12 7245 9 83 12 7260 15 50 12 7259 20 83 12 7245 10 00 12 7264 15 67 12 7256 21 00 12 7246 10 17 12 7260 15 83 12 7252 21 17 12 7246 ' 10 33 12 7255 16 00 12 7253 21 33 12 7247 10 50 12 7259 16 17 12 7254 21 50 12 7247 10 67 12 7256 16 33 12 7255 21 67 12 7248 10 83 12 7253 16 50 12 7256 21 83 12 7248 11 00 12 7256 16 67 12 7258 22 00 12 7249 ' 11 17 12 7256 16 83 12 7259 22 17 12 7244 11 33 12 7255 17 00 12 7260 22 33 12 7239 11 50 12 7258 17 17 12 7256 22 50 12 7239 11 67 12 7257 17 33 12 7252 22 67 12 7239 ' 11 83 12 7255 17 50 12 7252 22 83 12 7240 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' GENERAL NOTES APPL I CANT/011NER V E S T 1 N G T E N T A T I V E ' EXISTINGZONING RR TRACT r'O . 26828 1 ALL SLOPES SHOVN HAVE A 2 I GRADIANT UNLESS OTHERLlISE SHOVN DACIN DEVELOPttENT INC PROPOSED ZONING R I BOi S GARFIELD AVE a2p1 2 DESIGN OF VTt1 26B2B IS BASED UPON PRELIIIINARY ENGINEERING DESIGN AIHAFIBRA CALIF 91801 LAND USE OF VTf7 23428 AND VTtt 25004 ANY CHANGES IN FINAL ENGINEERING OF CB1B1 300 8BB3 IN THE CITY OF TEMECULA EXISTING VACANT TRACT 23428 OR TRACT 25004 hIAY NECESSITATE DE�IGN ADJUSTIIENTS TO COUNTY OF R I VERS I DE � PROPOSED RESIDENTIAL TRACT 26828 ENGINEER STATE OF CAL I FORN I A AREA CALCULATTONS GROSS ACREAGE 35 52 A C 3 AL� EXTERNAL NALLS AND FENCES SHALL BE CONSTRUCTED IN ACCORDANCE RESIDENTIAL ACREAGE 25 63 A C uITH THE PROJECT DESIGN nANUAL BEING A SUBDIVISION OF PARCELS 1 2 3 ANO 4 OF P n NO 16470 OPEN SPACE ACREAGE 0 A C �,�. Lohr+ Associates ON FILE 1N BOOK 99 AT PAGES 7 AND 2 TOGETHER NITH PARCELS 1 STREET ACREAGE 9 89 A C �a� 2 3 AND 4 OF P n NO 16487 ON FILE IN BOOK 99 AT PAGES I1 AND 12 ALL RECORDS OF RIVERSIDE COUNTY CALTFORNIA ' TOTAL RESIDENTIAL LOTS 130 °' ` `' � FEBRUARY 1991 t11NInUM LOT SIZE 7200 S F R � R � � �g ASSESSOR 5 PARCEL NUf1BERS 914 260 039 040 041 042 043 044 045 6 046 I I I I � � ��✓dd �dd��d �d�v�d �' Dd fl THOMAS BROS GUIDE PAGE 115 A 4 B 3 6 B 4 � KJ y �� t,I � f �`�p� -L d � � � � I� j�P, ��,���`) �� ��� ��� �ed � iP i o zqo �Qo II ���afl �c9Q�.J � 1 ' ��I� 'f� � - -� � �--� �� � �� ii n h �I �da�) �49Y9 I � CONTIGUOUS OtINERSHIP THIS TENTATIVE MAP INCLUDES THE ENTIRE ��uO�2C�cn�za�c)�i24oc 24s.PJ �� m� 3 7�35 y9s 9ss �i9;3�I(d�G�I//98) I � '� ' rEar�2sxa I� SCALE! 100 CONT I GUOUS OLINERSH I P OF THE LAND D I V I DER � Q„ 7v d f ia 'n � o y � raiz z � { era, �iracs � 'r � i�ir��s) � p p n � I I R 1R L7oo4 �I' I �\ � 3, C , I I I � 2// 9 � � � y y r �f �/B51)f PROPOS I ��a a a�l I , I � _ ��� II / \ �t � � � ��,I ;) � ,�,., a a � �e�:, I , � __ � d UTILITIES Jl� ���bo �°ROPoSED J ��� ��a1 aa�k'�.�� _�,� � I �--- j ---y- � f - - tl� 3j- ��r2 �� 1, r� �� R p -� � I d d D�4�Y�i SELIER EASTERN MUNICIPAL uATER DISTRICT es-� � �- �-�-- ��NOO sz i e= �r�-- � S�RAL�ELL Va ` ¢ '9-12 6�a'�� � R Q p J L �y �( `__ s o � O UATER EASTERN FIl1NICIPAL LIATER DISTRICT � = Q p� E�t f! 0 39AC L 4 0 H=3� i� E c ` os' - F Z R 025l�C L 325 aN /3 F 5 05p ��v� ¢o t ts J Q' � R R ' TELEPHONE GTE CALIFORNiA INCORORATED -- � - a __ ELECTRIC SOUTHERN CALIFORNIA EDISON CO �� t 95 d as � ,� e _ \ � AC '� 3 . 4 zlE� �- �� � � L�NE R5 GAS SOUTHERN CALIFORNIA GAS CO I �� � I�, ��^ , s ��� 0 q �,A1 2 D g� k 4 y o as � f '+ y .� � �- 0 B.QH z � e� 1� ��Q y v �`L _ .� B r�� � SCHOOL DISTR1CT TEttECULA UNION SCHOOL DISTRICT I� � \ � �a ��8 ���b � � � N `'' % m �� (� ��� � k�� I � �ib o Q � �77a� ` �/2QS� 9 � -�- �\ /! q a a O s � 4 � o ' t� �3so O k `' �^ i 3A '+-Z, b Db GRADING ESTTI1ATE CUT 3B0 605 CY `I � �^ o � p � ap � � �I� a h � a r�, n �q° �� P' �° r I �$19 � m mm � ` � 5 87 8$ B C r(,�' _ � F I LL 380 605 C Y S P v, 2 %� R e o � L' � � 1 �, �` � 5 Q k � m � � 8 9O �`°�� ' O� , II Ci24a � � � K, ' � �i � Q- W � 5_ �� � � N I ��I } � R a H �B � Rnv 1 � � � W �_� ^! a, 0 h a i � r i�� � H 25 '�O r� ' I I � I I A ? 7/AC c+ o t4'�' A 310AC y A 9 65 AC � � � j M I 6 � S T R E E T E �==— � pzr�) '^+"� d � I( o - �� ��d �� �! 5 0 � `��� � I L 5 0 0 L!� I r� _"� � ` � o � _ ` � f m �� 1 ^� 1 I 1 'I 3O 3 � 44 36 -� � / I �-� �/243) I�}��1^ R 351 A p d t' � Za' � a � D � � � d a �� � � r � r " - D „ 'm��:J� A � A 1 �_ s' � � y g {� � ' u I � I It �� ^ � � u`� 4 ��'� o� a�� � I ui(:'10 - � � o F 4 � � �9 78 ,o, �_ " c.i o l� I 5 s zz z2 6 5 I P o � � �— s L- 885 °� of . � a �'� m �_ � �� ��� i R � � I � 2/4 HC „ °i a � Q" s� f �� C � , m�s � � �_� �� d �zea) v 0 fl 0 6 N e N$ � v N w o� � � � � � o w L 770 �� � s aroo t� A// � 65 1 �. 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MAP R V O S OPES G 6R.9A6 A�G SER.1M Nq RqoO J N 2201! � - - -- - - - -- - - - --- ' ' ' ' ti � ' APPENDIX E ' WATER QUALITY CALCULATIONS , , , � � ' � t ' � , ' ' � ' � � � ' apexseraphinal out stormceptor CD S�zing Program vers�on 4 0 0 , Country united states ' Date 1/24/06 Pro�ect Number Pro�ect Name Seraphina Tract 32346 Pro]ect Location Temecula � p y A ex Com an p Designer David nason , Notes Rainfall Station ESCONDIDO CHURCH RANCH Ra�nfall File CA2871 NDC �atitude = N 33 deg 6 m�n , Lon itude = W 117 deg 5 min Elegation = 722 ft ►tainfall Period of Record 1948 to 1958 , Site Parameters Total �rainage Area 3 89 ac � Total Imperv�ousness (%) 65 00 overland Flow w�dth 823 ft overland slope (%) 2 � Impervious �epression 5torage 0 020 in ' Pervious Depression Storage 0 200 in Imperv�ous Mann�ngs n 0 015 Pervious Mannings n 0 250 , znf�ltration Parameters � Horton znfiltration used Init�al (Max) Inf�ltration Rate 2 44 in/h Final (M�n) Inf�ltration Rate 0 40 in/h Infiltration Decay Rate (1/sec) 0 00055 � znf�ltrat�on Regeneration Rate (1/sec) 0 O10 � �aily evaporat�on 0 100 �n/day , sediment build-up reduces the storage volume for settling calculations A maintenance cycle of 12 months was chosen (The stormceptor will be cleaned out every 12 months) ` TSS �oading Calculations Buildup / washoff �oading Chosen ' Buildup washoff allocates more washoff in the rising limb of the hydrograph Target Event Mean Concentration (mg/1) 125 , Page 1 ' , ' apexseraphinal out Buildup Exponent 0 400 , washoff Exponent 0 200 Availab�lity Factors for Particles >= 400 um Availability = A + Bi�C q - 0 057 ' g = 0 040 � = rainfall intens�ty � = 1 100 � Stormwater Particle size Distribution Table ' Diameter Percent Specific �ravity Settl�ng velocity (um) (%) ft/s 20 0 20 0 1 30 0 0013 60 0 20 0 1 80 0 0051 , 150 0 20 0 2 20 0 0354 400 0 20 0 2 65 0 2123 2000 0 20 0 2 65 0 9417 , Flocculated settling assumed for particles <= 20 um Ra�nfall records 1948 to 1958 � Total rainfall period 11 years Total rainfall = 125 4 in Average annual rainfall = 11 4 in ' Rainfall event analys�s , 2 0 hour inter event time used to determine # of events < �n Events % Vol �n % � 0 25 480 77 5 29 23 4 0 50 61 9 9 22 17 3 0 75 35 S 7 21 16 9 1 00 22 3 6 19 15 5 � 1 25 7 1 1 8 6 5 150 6 10 8 64 1 75 2 0 3 3 2 S 200 1 02 2 16 , 2 25 3 0 5 6 5 1 2 50 0 00 0 00 275 1 02 3 21 3 00 0 00 0 00 , 3 25 0 00 0 00 3 50 1 0 2 3 Z 8 3 75 0 00 0 00 400 0 00 0 00 � 4Z5 0 00 0 00 4 50 0 00 0 00 475 0 00 0 00 5 00 0 00 0 00 , 5 25 0 00 0 00 5 50 0 00 0 00 5 75 0 00 0 00 600 0 00 0 00 625 0 00 0 00 � Page 2 ' , � apexseraphinal out 6 50 0 00 0 00 � 675 0 00 0 00 700 0 00 0 00 7 25 0 00 0 00 7 50 0 00 0 00 ' 7 75 0 00 0 00 800 0 00 0 00 8 Z5 0 00 0 00 > 8 25 0 00 0 00 � Total rain 125 in Number of ra�n events 619 � Rainfall intensit anal s�s Y Y , Average �ntensity = 0 21 �n/h < in/h Number % vol in % � 0 25 1853 76 3 43 34 0 0 50 311 12 8 28 22 3 0 75 137 5 6 21 16 4 1 00 77 3 2 17 13 2 � 125 19 08 5 42 150 18 07 6 49 175 5 02 2 16 200 5 02 2 19 � 2 25 1 00 1 04 2 50 1 0 0 1 0 5 2 75 0 00 0 00 3 00 1 0 0 1 0 6 , 3 25 0 00 0 00 3 50 0 00 0 00 3 75 0 00 0 00 400 0 00 0 00 � 425 0 00 0 00 4 50 0 00 0 00 475 0 00 0 00 5 00 0 00 0 00 � 5 25 0 00 0 00 5 50 0 00 0 00 5 75 0 00 0 00 600 0 00 0 00 � 625 0 00 0 00 6 50 0 00 0 00 675 0 00 0 00 7 00 0 00 0 00 � 7 25 0 00 0 00 7 50 0 00 0 00 7 75 0 00 0 00 800 0 00 0 00 � 8 25 0 00 0 00 > 825 0 00 0 00 Total rainfall = 125 4 in , Total evaporation = 9 7 in Total inf�ltrat�on = 43 8 in % Rainfall as runoff = 59 0% � Page 3 r r ' apexseraphinal out � ,4verage Event Mean Concentration for T55 (mg/1) 80 0 T55 Removal simulat�on Results Table � stormceptor Treated Q % Runoff Tank Tss overall Tss Model cfs Treated Removal (%) Removal (%) � STC 450 0 283 52 79 66 STC 900 0 636 71 83 76 STC 1200 0 636 71 83 76 STC 1800 0 636 71 83 76 � STC 2400 1 059 83 85 81 5TC 3600 1 059 83 85 82 STC 4800 1 766 92 87 86 STC 6000 1 766 92 87 86 � STC 7200 2 472 96 89 88 STC 11000 3 531 99 91 91 STC 13000 3 531 99 91 91 STC 16000 4 944 100 93 93 � � Hydrology Table - volume of rtunoff Treated vs By-Pass Flow rtate Treated Q Treated vol over vol Tot vol % Treated cfs ft3 ft3 ft3 � 0 035 174706 869169 1043863 16 7 0 141 388501 655369 1043863 37 Z 0 318 568373 475495 1043863 54 4 � 0 565 711783 332082 1043863 68 2 0 883 821694 222169 1043863 78 7 1 271 903000 140862 1043863 86 5 1 730 959984 83878 1043863 92 0 � 2 260 996537 47326 1043863 95 5 2 860 1018140 25724 1043863 97 5 3 531 1031202 12661 1043863 98 8 4 273 1037261 6602 1043863 99 4 � 5 085 1040643 3221 1043863 99 7 5 968 1042257 1606 1043863 99 8 6 922 1042980 883 1043863 99 9 7 946 1043588 275 1043863 100 0 � 9 041 1043863 0 1043863 100 0 10 206 1043863 0 1043863 100 0 11 442 1043863 0 1043863 100 0 12 749 1043863 0 1043863 100 0 � 14 126 1043863 0 1043863 100 0 15 574 1043863 0 1043863 100 0 17 092 1043863 0 1043863 100 0 18 681 1043863 0 1043863 100 0 20 341 1043863 0 1043863 100 0 � 22 072 1043863 0 1043863 100 0 Z3 873 1043863 0 1043863 100 0 25 744 1043863 0 1043863 100 0 27 687 1043863 0 1043863 100 0 � 29 700 1043863 0 1043863 100 0 31 783 1043863 0 1043863 100 0 ' Page 4 � � � apexseraphinal out End of S�mulation , ' � � � � � � � � � � � � , � Page 5 � � � apexseraph�na2 out Stormceptor C� Sizing Program vers�on 4 0 0 � Country un�ted states , �ate 1/24/06 Pro�ect Number Pro�ect Name seraphina Tract 32346 Pro�ect Location Temecula � Company Apex Designer David nason Notes � Rainfall Station ESCONDIDO CHURCH RANCH Rainfall File CAZ871 NDC �atitude = N 33 deg 6 min , Long�tude = W 117 deg 5 m�n Elevat�on = 722 ft Rainfall Period of Record 1948 to 1958 � Site Parameters Total Dra�na�e Area 2 11 ac � Total zmperviousness (%) 65 00 overland Flow width 606 ft overland slope (%) 2 0 Imperv�ous �epress�on Storage 0 020 in � Pervious �epress�on storage 0 Z00 in zmpervious Mann�ngs n 0 O15 Pervious Mannings n 0 Z50 , znfiltration Parameters � Horton Infiltrat�on used znitial (Max) Infiltration Rate 2 44 in/h Final (M�n) Inf�ltration Rate 0 40 in/h Infiltration �ecay ttate (1/sec) 0 00055 � Infiltration Regeneration ttate (1/sec) 0 O10 � �a�ly evaporation 0 100 in/day � sed�ment bu�ld-up reduces the storage volume for settl�ng calculations A maintenance cycle of 12 months was chosen (The Stormceptor will be cleaned out every 12 months) � T55 Loading Calculations Buildup / washoff �oading Chosen , Buildup washoff allocates more washoff �n the rising limb of the hydrograph Target Event Mean Concentrat�on (mg/1) 125 � Page 1 � , � apexseraph�na2 out Buildup Exponent 0 400 , washoff Exponent 0 200 ,4va�labil�ty Factors for Particles >= 400 um Ava�lab�lity = A + Bi�C q = 0 057 � g - 0 040 i — rainfall �ntens�ty � = 1 100 � stormwater Part�cle size �istribution Table Diameter Percent Specific Gravity Settling velocity � (um) (%) ft/s 20 0 20 0 1 30 0 0013 60 0 20 0 1 80 0 0051 � 150 0 20 0 2 20 0 0354 400 0 20 0 2 65 0 Z123 2000 0 20 0 2 65 0 9417 � Flocculated settl�ng assumed for part�cles <= 20 um Rainfall records 1948 to 1958 , Total rainfall period 11 years Total rainfall = 1Z5 4 in Average annual rainfall = 11 4 in , Ra�nfall event analysis , 2 0 hour inter event t�me used to determine # of events < in Events % Vol �n % � 0 25 480 77 5 29 23 4 0 50 61 9 9 22 17 3 0 75 35 5 7 21 16 9 1 00 22 3 6 19 15 5 , 125 7 11 8 6 5 150 6 10 8 64 1 75 2 0 3 3 2 5 200 1 02 2 16 � 2 25 3 0 5 6 5 1 2 50 0 00 0 00 275 1 02 3 21 300 0 00 0 00 3 Z5 0 00 0 00 , 3 50 1 0 2 3 2 8 3 75 0 00 0 00 400 0 00 0 00 425 0 00 0 00 , 450 0 00 0 00 475 0 00 0 00 500 0 00 0 00 5 Z5 0 00 0 00 � 5 50 0 00 0 00 575 0 00 0 00 600 0 00 0 00 625 0 00 0 00 � Page 2 ' � � apexseraphina2 out 6 50 0 00 0 00 � 675 0 00 0 00 700 0 00 0 00 7 25 0 00 0 00 7 50 0 00 0 00 ' 775 0 00 0 00 800 0 00 0 00 8 25 0 00 0 00 > 825 0 00 0 00 � Total rain 125 in Number of rain events 619 � Rainfall intensit anal sis Y Y , Average intensity = 0 21 �n/h < in/h Number % vol in % � 0 25 1853 76 3 43 34 0 0 50 311 12 8 28 22 3 0 75 137 5 6 21 16 4 1 00 77 3 2 17 13 2 , 125 19 08 5 42 ' 1 50 18 0 7 6 4 9 175 5 02 2 16 200 5 02 2 19 � 2 25 1 00 1 04 2 50 1 0 0 1 0 5 2 75 0 00 0 00 300 1 00 1 06 ' 3 Z5 0 00 0 00 3 50 0 00 0 00 3 75 0 00 0 00 400 0 00 0 00 � 425 0 00 0 00 4 50 0 00 0 00 475 0 00 0 00 5 00 0 00 0 00 ' S 25 0 00 0 00 5 50 0 00 0 00 5 75 0 00 0 00 600 0 00 0 00 � 625 0 00 0 00 650 0 00 0 00 675 0 00 0 00 700 0 00 0 00 ' 7 25 0 00 0 00 7 50 0 00 0 00 7 75 0 00 0 00 800 0 00 0 00 8 25 0 00 0 00 , > 8 25 0 00 0 00 Total rainfall = 125 4 in � Total evaporation = 9 6 in Total infiltration = 43 8 in % Rainfall as runoff = 59 4% , Page 3 � � � apexseraphina2 out , Average Event Mean Concentration for TSS (mg/1) 78 1 � TSS Removal s�mulation Results Table stormceptor Treated Q % Runoff Tank TSS Overall TSS Model cfs Treated Removal (%) Removal (%) � STC 450 0 283 64 82 73 STC 900 0 636 83 85 82 STC 1200 0 636 83 85 83 STC 1800 0 636 83 85 83 � STC 2400 1 059 93 87 87 STC 3600 1 059 93 88 87 5TC 4800 1 766 98 90 90 STC 6000 1 766 98 90 90 � STC 7200 2 472 99 92 92 STC 11000 3 531 100 94 94 STC 13000 3 531 100 94 94 5TC 16000 4 944 100 95 95 � � Hydrology Table - volume of Runoff Treated vs By-Pass Flow Rate Treated Q Treated vol over vol Tot vol % Treated cfs ft3 ft3 ft3 � 0 035 127186 442939 570113 22 3 0 141 267984 302142 570113 47 0 0 318 378977 191145 570113 66 5 � 0 565 459609 110507 570113 80 6 0 883 513647 56467 570113 90 1 1 271 544001 2611Z 570113 95 4 1 730 559075 11038 570113 98 1 � 2 260 565734 4378 570113 99 2 2 860 568396 1717 570113 99 7 3 531 569362 751 570113 99 9 4 273 569866 246 570113 100 0 � 5 085 570113 0 570113 100 0 5 968 570113 0 570113 100 0 6 922 570113 0 570113 100 0 7 946 570113 0 570113 100 0 � 9 041 570113 0 570113 100 0 10 206 570113 0 570113 100 0 11 442 570113 0 570113 100 0 12 749 570113 0 570113 100 0 , 14 126 570113 0 570113 100 0 15 574 570113 0 570113 100 0 17 092 570113 0 570113 100 0 18 681 570113 0 570113 100 0 � 20 341 570113 0 570113 100 0 22 072 570113 0 570113 100 0 23 873 570113 0 570113 100 0 25 744 570113 0 570113 100 0 27 687 570113 0 570113 100 0 � 29 700 570113 0 570113 100 0 31 783 570113 0 570113 100 0 � Page 4 , � � apexseraphina2 out End of simulation � � � � � � � � � � � � � ' � , Page 5 � � � apexseraphina3 out Stormceptor C� sizing Program version 4 0 0 � Country united states �ate 1/24/06 � Pro�ect Number Pro�ect Name seraphina Tract 32346 Pro�ect Location Temecula � Company Apex Designer �avid nason Notes � Rainfall Station ESCONDIDO CHURCH RANCH Rainfall File CA2871 NDC �atitude = N 33 deg 6 min � Longitude = w 117 deg 5 m�n Elevat�on = 722 ft Rainfall Period of Record 1948 to 1958 � Site Parameters Total Draina�e Area 4 11 ac � Total Imperviousness (%) 65 00 Overland Flow Width 846 ft Overland Slope (%) 2 0 Impervious Depress�on Storage 0 020 in � Pervious Depression Storage 0 200 in Impervious Mann�ngs n 0 015 Pervious Mann�ngs n 0 250 � Infiltration Parameters � Horton Infiltration used zn�t�al (Max) znfiltration rtate 2 44 �n/h F�nal (Min) Infiltration Rate 0 40 in/h Infiltration �ecay rtate (1/sec) 0 00055 znfiltration Regeneration Rate (1/sec) 0 O10 � �aily evaporation 0 100 �n/day � sediment build-up reduces the storage volume for settling calculations � ,4 maintenance cycle of 12 months was chosen (The Stormceptor will be cleaned out every 12 months) � TSS Loading Calculations Buildup / washoff �oading Chosen � Buildup washoff allocates more washoff in the rising limb of the hydrograph Target Event Mean Concentration (mg/1) 125 � Page 1 � � � apexseraphina3 out Buildup Exponent 0 400 Washoff Exponent 0 200 �� ,4vailability Factors for Particles >= 400 um Availab�l�ty = A + B��C A = 0 057 B = 0 040 � i = rainfall intensity c= 1100 � stormwater Particle size �istribution Table Diameter Percent Specific Gravity Settling velocity � (um) (%) ft/s 20 0 20 0 1 30 0 0013 60 0 ZO 0 1 80 0 0051 � 150 0 20 0 2 20 0 0354 400 0 20 0 2 65 0 2123 2000 0 20 0 2 65 0 9417 � Flocculated settling assumed for particles <= 20 um ttainfall records 1948 to 1958 � Total ra�nfall period 11 years Total rainfall = 125 4 in Average annual rainfall = 11 4 in i Rainfall event analysis � 2 0 hour �nter event time used to determ�ne # of events � < in Events % Vol �n % 0 25 480 77 5 29 23 4 � 0 50 61 9 9 22 17 3 0 75 35 5 7 21 16 9 1 00 22 3 6 19 15 5 125 7 11 8 6 5 � 1 50 6 1 0 8 6 4 1 75 2 0 3 3 2 5 200 1 02 2 16 2 25 3 0 5 6 5 1 � 2 50 0 00 0 00 2 75 1 0 2 3 2 1 300 0 00 0 00 325 0 00 0 00 � 3 50 1 0 2 3 2 8 3 75 0 00 0 00 400 0 00 0 00 425 0 00 0 00 � 450 0 00 0 00 475 0 00 0 00 5 00 0 00 0 00 5 25 0 00 0 00 � 5 50 0 00 0 00 5 75 0 00 0 00 600 0 00 0 00 625 0 00 0 00 � Page 2 � � � apexseraph�na3 out 6 50 0 00 0 00 675 0 00 0 00 �� 700 0 00 0 00 7 25 0 00 0 00 7 50 0 00 0 00 7 75 0 00 0 00 ' 800 0 00 0 00 825 0 00 0 00 > 825 0 00 0 00 � Total rain 125 in Number of rain events 619 � Rainfall �ntensity analys�s � Average �ntensity = 0 21 in/h < in/h Number % vol in % � 0 25 1853 76 3 43 34 0 0 50 311 12 8 28 22 3 0 75 137 5 6 21 16 4 1 00 77 3 2 17 13 2 � 1 25 19 0 8 5 4 2 150 18 07 6 49 175 5 02 2 16 200 5 02 2 19 � 2 25 1 00 1 04 2 50 1 0 0 1 0 5 2 75 0 00 0 00 3 00 1 0 0 1 0 6 � 3 25 0 00 0 00 3 50 0 0 0 0 0 0 3 75 0 00 0 00 400 0 00 0 00 � 425 0 00 0 00 4 50 0 00 0 00 475 0 00 0 00 5 00 0 00 0 00 � 5 25 0 00 0 00 5 50 0 00 0 00 5 75 0 00 0 00 600 0 00 0 00 � 625 0 00 0 00 6 50 0 00 0 00 675 0 00 0 00 700 0 00 0 00 725 0 00 0 00 � 7 50 0 00 0 00 7 75 0 00 0 00 800 0 00 0 00 825 0 00 0 00 � > 8 25 0 00 0 00 Total rainfall = 125 4 in � Total evaporation = 9 7 in � Total infiltration = 43 8 in % Rainfall as runoff = 58 9% � Page 3 � � � apexseraphina3 out Average Event Mean Concentrat�on for T55 (mg/1) 80 1 , T55 Removal simulation Results Table ' Stormceptor Treated Q % Runoff Tank Tss Overall TSS Model cfs Treated Removal (%) Removal (%) � STC 450 0 283 51 78 66 STC 900 0 636 70 82 76 STC 1200 0 636 70 82 76 5TC 1800 0 636 70 83 76 � STC 2400 1 059 82 84 81 STC 3600 1 059 82 85 81 STC 4800 1 766 92 86 85 STC 6000 1 766 92 87 86 � STC 7200 2 472 96 88 88 STC 11000 3 531 99 91 91 STC 13000 3 531 99 91 91 STC 16000 4 944 100 92 92 , � Hydrology Table - volume of rtunoff Treated vs By-Pass Flow Rate Treated Q Treated vol over vol Tot vol % Treated cfs ft3 ft3 ft3 � 0 035 179349 922862 1102224 16 3 0 141 401531 700677 1102224 36 4 0 318 589051 513159 1102224 53 4 � 0 565 739844 362369 1102224 67 1 0 883 856387 245831 1102224 77 7 1 271 942690 159531 1102224 85 5 1 730 1005089 97133 1102224 91 2 � 2 260 1045941 56282 1102Z24 94 9 2 860 1070934 31290 1102224 97 2 3 531 1085985 16239 1102224 98 5 4 273 1093807 8417 1102224 99 2 � 5 085 1098115 4109 1102224 99 6 5 968 1100084 2139 1102224 99 8 6 922 1101069 1154 11022�4 99 9 7 946 1101684 540 1102224 100 0 9 041 1102135 89 1102224 100 0 � 10 206 1102224 0 1102224 100 0 11 442 1102224 0 1102224 100 0 12 749 1102224 0 1102224 100 0 14 126 1102224 0 1102224 100 0 � 15 574 1102224 0 1102224 100 0 17 092 1102224 0 1102224 100 0 18 681 1102224 0 1102224 100 0 20 341 1102224 0 1102224 100 0 � 22 072 1102224 0 1102224 100 0 23 873 1102224 0 1102224 100 0 25 744 1102224 0 1102224 100 0 27 687 1102224 0 1102224 100 0 � 29 700 1102224 0 1102224 100 0 31 783 1102Z24 0 1102224 100 0 � Page 4 � � M apexseraphina3 out End of simulation � � r � � � � � � � � � � � � � Page 5 �