SECTION 3 STUDY AREA 3-1 Purpose This section describes the study area of the Water Master Plan, discusses the land uses and population estimates within the study area that are utilized in estimating the water demands. 3-2 Location The City of Manhattan Beach (City) is located on the western edge of Los Angeles County, approximately 22 miles southwest of downtown Los Angeles. The City’s regional location is depicted on Figure 3-1. The City encompasses approximately 3.9 square miles of residential, commercial, and industrial land. It is a coastal community bounded by the approximately 2 miles of beach frontage to the west. Manhattan Beach is bordered by the City of El Segundo to the north, the Cities of Hawthorne and Redondo Beach to the east, and the Cities of Redondo Beach and Hermosa Beach to the south. Manhattan Beach is centralized between several Southern California highways, providing easy access into the City. The Century Freeway (I-105) is located to the north. The San Diego Freeway (I-405) and Artesia Freeway (SR-91) are located to the east. The major roads within the City include Ocean Drive, Highland Avenue, Valley Drive, Sepulveda Boulevard, Aviation Boulevard, Rosecrans Avenue, Marine Avenue, Manhattan Beach Boulevard, and Artesia Boulevard. 3-3 Topographical Description The characteristic topography of Manhattan Beach is a series of peaks and valleys throughout the City. The highest point in the City is located near the intersection of Sepulveda Boulevard and Longfellow Drive and reaches 235 feet above mean sea level (amsl). The lowest ground elevation is 0.0 ft, along the beach frontage. The areas near the highpoint, east of Ardmore Drive, are considerably higher than the remainder of the City. To provide the required pressures in the water system, a high pressure zone was created in this area. 3-4 Geology The Los Angeles County Department of Public Works (LACDPW) Hydrology and Sedimentation Appendix provides information on the soil characteristics within Los Angeles County. This document shows that the City is primarily located on Oakley fine sand (Soil Type 10). Chino Silt Loam (Soil Type 3) is found from the beach front to Valley Drive and Grandview Avenue. Montezuma Clay Adobe (Soil Type 9) and Ramona Sandy Loam (Soil Type 14) can be found on the northeast portion of the City. The soil classifications are illustrated on Figure 3-2. 3-5 Climate The study area has a Mediterranean climate, enjoying plenty of sunshine throughout the year, with an average of 263 sunshine days and only 35 days with measurable precipitation annually. The period of April through November is warm to hot and dry with average high temperatures of 71 - 79°F and lows of 50 - 6 2°F. 3-1 City of Manhattan Beach R:\Reports\Manhattan Beach\Water Master Plan Water Master Plan 42 City of Los Angeles City of 405 Inglewood Century Blvd Los Angeles International Airport Lennox 105 Imperial Hwy t S h s a 120th St 1 N Del Aire City of Hawthorne City of El Segundo Blvd El Segundo d v l B e 405 n r o h t w a Rosecrans Ave H H i g h d l a v O l n B c d r e e D Marine Ave v a A y n le A n v l e o a v i e e V A t D e i a r r i r o City of i v dm a r r A A Lawndale P d v l B Manhattan Beach Blvd a d e e v v City of A l u d p Manhattan o e o S vd Beach w l h B e c l ea B g ndo n do I e Artesia Blvd R 91 City of Hermosa City of Beach Redondo Beach H e r m o 190th St s a A v e 107 Del Amo Blvd e d v v l City of A B a z Torrance e n n r A o h Torrance Blvd t w a H 0 2,500 5,000 10,000 CITY OF MANHATTAN BEACH Feet WATER MASTER PLAN 1" = 5,000' PROJECT NO: 1640901.20 Regional Location Map DATE: April 2010 Figure 3-1 City of ST H 45T T S El Segundo TH C 44 T R S RD E 3 T S 4 S D T N 42 T T S D 1S T R 4 S City of TH 40 T S L H ROSECRANS AVE R T P 9 D Hawthorne 3 E T E S 36TH PL E V H 36TH PL V T 8T E E A 3 V A E E T E G Y S A 36TH ST V V PA K H RKVIEW AVE E A V T A K A 6 O A T B 3 R 35TH PL V L S A A M W H D A A A L T E T 5 I L 3 35TH ST O Y H T N S A M I N V U L E V R I I H E O G T 33RD PL E F 4 V L T N A O I 3 A P V V E I D I T R H E L S 33RD ST Y L D C A W W A E E L B A A R A P T E 33R E A 31ST PL Y D ST R A S D E W W C D A C N M D N K R 31ST ST L R Y I N L R D D H I R P E B D A A 30TH ST O R L A C T A A D R A E P L E P T P T R A 30TH ST V L M M H L V P V O O E L E 29TH ST H A A A T T L 9 I H 2 N A M L L R H V C 27TH ST A T E A A S E N S R C H E T 8T L A U 2 V P U L T H 26TH ST A A A VILLAGE T A CIR B 26 S N L A E 25TH ST E V MARINE AVE L A N M A V L I 23RD ST E P T E E A P E D 3R V E 23RD ST S M 2 V L D V P A A L V E A A V D N T V I R A A N S A L E R E M R L P H K B P H 21ST ST N T V 4 T T A I S A 2 S 1 M A O 2 S D E R 19TH ST E L D R N J O R E N E V 3 R V L E 2 L D 19TH ST O L P N A I A C E E T S T 1 G H E 2 R L 18TH ST A T S A P A V I U 18TH ST T N H I T W V A 20 L O N O P A L O R 17TH ST E H A T E T S M 9 D 17TH ST V G 1 Z L H V Pacific Ocean P Y T A 7 A N A E N H 1 A T E 8 T E V City of A N 1 L S F P T A V M H A 15TH ST Y I 14TH S H T T M U T 5 A L L 7 1 1 D T N T S E S O T V 12TH CT T Redondo H C 12TH ST N I H T T L N H T 4 I 12TH ST 6 1 S S 1 F B E H P I G T T E 13 T 12TH ST C A S S S H MANHATTAN BEACH BLVD A Beach H T A M C T E 2 D R E P T 1 N S V E A 11TH ST V L H H P A V T N 3 A 1 O H L D 1T J 1 O L U P 10TH ST K D R P C T TE L E L N N E T S E P L A P P C S O P H S T R 9TH ST H T 1 T E 1 D D S 10 C I S L V M S E P U F O A S I H T R H T E S 9 L R N 8TH ST E C T P L TH E V 0 H O N A L A L 1 T T N T 8 S S A P E K P H A S V I 6TH ST N T A 9 R T E I W S D H N T A N H S T T O O T 8 H H H O T L L R 7 P J 5TH ST 5TH ST E S O H P T J T 5 S L 3RD ST S S C P N H N H R T T I 3RD ST 6 R 4 L 3RD ST A T P O E O S I D L H S P 5T 3R PL 2ND ST T ST T A D I H 2N 1ST PL T V 4 T D 1ST ST R 1ST ST A S T D R O R T N S 3 S DUNCAN PL D ST A GATES AVE GATES AVE 1 N PL ST D I R CU R ST ST CO DUNCAN AVE R RTIS AVE 1 D R S R E I CURTIS AVE M C HO AN E R BOUNDARY PL N F H H VOORHEES AVE Legend U K RU KEATS ST HLAND AVE Y SHELLEY ST NELSON AVE W Oakley Fine Sand (Soil Type 10) TENNYSON ST N MATHEWS AVE O City of I T A ARTESIA BLVD I Chino Silt Loam (Soil Type 3) Hermosa V A Beach Ramona Sandy Loam (Soil Type 14) CITY OF MANHATTAN BEACH WATER MASTER PLAN Montezuma Clay Adobe (Soil Type 9) 0 1,000 2,000 4,000 Feet PROJECT NO: 1640901.20 Soils Map 1" = 2,000' DATE: April 2010 Figure 3-2 SECTION 3 STUDY AREA Due to the moderating effect of the ocean, temperatures are cooler than the inland areas of Los Angeles, where temperatures frequently exceed 90°F.