Sewer Study for the City of Ontario Sphere of Influence

SECTION 3

STUDY AREA

3-1 PURPOSE

This section describes the study area of the Wastewater Master Plan, discusses the land uses within the study area, and population estimates.

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.

The City 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 AND GEOLOGY

The characteristic topography of Manhattan Beach is a series of peaks and valleys throughout the City. The City’s highest point is located near the intersection of Sepulveda Boulevard and Longfellow Drive and reaches 235 feet above sea level. The lowest ground elevation is at 0.0 ft, along the beach frontage.

The study area can be roughly divided into two sections based on its topography and soil conditions. A sand dune ridge runs diagonally from a point on the northwest City boundary approximately 2,000 feet from the coast to a point on the southern City boundary approximately 1,000 feet east of Sepulveda Boulevard. To the west of this ridge, the soil is fine dune sand and the topography is hilly. To the east of the ridge, the soil is sandy loam and the land is flat to gently sloping.

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 fine dune sand located west of the aforementioned ridge is Oakley fine sand (Soil Type 10). The sandy loam east of the aforementioned ridge is Chino Silt Loam (Soil Type 3) and Ramona Sandy Loam (Soil Type 14). The soil classification locations are illustrated on Figure 3-2.

3-1 City of Manhattan Beach R:\Rpts\Manhattan Beach\Wastewater Master Plan\Report Wastewater Master Plan 42 City of Los Angeles

City of ¨¦§405 Inglewood Century Blvd Los Angeles International Airport Lennox

105 Imperial Hwy ¨¦§

120th St 1 St Nash Del Aire City of Hawthorne City of El Segundo Blvd El Segundo ¨¦§405

Rosecrans Ave HawthorneBlvd

Ocean Dr City of Valley Dr Manhattan City of

Ardmore Ave Beach Blvd Aviation Lawndale PrairieAve

Manhattan Beach Blvd

Pacific SepulvedaBlvd Ocean Artesia Blvd InglewoodAve Redondo Beach Blvd 91 City of Hermosa City of Beach Redondo Beach Hermosa Ave

190th St

107

Del Amo Blvd

City of

Torrance Anza Ave Anza Torrance Blvd ³ Blvd Hawthorne 0 2,500 5,000 10,000 CITY OF MANHATTAN BEACH Feet WASTEWATER MASTER PLAN 1" = 5,000' PROJECT NO: 1640901.10 Regional Location Map DATE: September 2009 Figure 3-1 45TH ST

44TH ST CREST DR 43RD ST City of 42ND ST 41ST ST El Segundo 40TH ST GRANDVIEW AVE 39TH ST ROSECRANS AVE 36TH PL 38TH ST 36TH PL 36TH ST PARKVIEW AVE 36TH PL 35TH PL 35TH PL

OAKAVE MARKET PL 35TH ST VILLAGE DR 35TH PL ELMAVE HIGHLAND AVE 33RD PL 34TH ST PINEAVE BAYVIEW DR VISTA DR FAIRWAY DR ALMA AVE 33RD ST MANHATTAN AVE BELLAVE 33RD ST OCEAN DR CREST DR REDONDOAVE 33RD ST

31ST PL WALNUTAVE 31ST ST CHATHAM City of SAUSALITO CIR

30TH ST POINSETTIAAVE PALM AVE PALM

BELL AVE MAPLEAVE

AGNESRD VALLEY DR 30TH ST PARK PL

29TH ST Hawthorne AVIATION BLVD 29TH PL 28TH ST GATEWAY DR

27TH ST LAURELAVE 29TH ST

WESTPORT 27TH PL 26TH ST BRIDGEPORT 28TH ST BLANCHE RD 28TH PL 26TH PL VILLAGE CIR 27TH ST 25TH ST MARINE AVE 24TH PL 23RD ST

23RD PL PINEAVE 23RD ST 25TH PL 23RD ST 23RD PL MARINE AVE 22ND ST

MARINE PL AVE PALM 24TH ST 21ST ST

MARINE PL 21ST PL OAKAVE JOHN ST 19TH ST

ELMAVE 20TH ST 23RD ST WALNUTAVE CEDARAVE 19TH ST

18TH ST HERRINAVE FLOURNOY RD 21ST PL AGNESRD 18TH ST 18TH ST 18TH ST

20TH PL PECKAVE 21ST ST LAURELAVE 17TH ST

19TH PL 17TH ST WENDY WY

17TH ST AVE FAYMONT PINEAVE

18TH PL MANZANITA LN

15TH ST LYNNGROVE DR

14TH ST MEADOWSAVE 17TH PL 15TH ST 12TH CT 14TH ST 12TH ST 12TH ST 16TH ST

13TH ST 12TH ST CHESTNUTAVE MANHATTAN BEACH BLVD MAGNOLIAAVE 12TH ST PACIFICAVE 14TH PL 11TH ST 13TH PL HIGHVIEW AVE THE STRAND 11TH PL Pacific Ocean 12TH PL 10TH ST

CENTER PL SEPULVEDA BLVD 9TH ST 11TH PL 10TH PL ARDMORE AVE

10TH PL 9TH PL 8TH ST PACIFIC PL 9TH PL 8TH PL

7TH PL 6TH ST 6TH ST HERRINST

REDONDOAVE

HARKNESS ST ROWELLAVE

8TH ST 6TH PL JOHNSONST 7TH ST 5TH ST 5TH ST 5TH PL JOHN PL 6TH ST

6TH PL 4TH PL DIANTHUS ST 3RD ST 3RD ST

LARSSON ST JOHN ST

5TH ST ANDERSON ST 5TH PL 3RD PL 4TH ST 2ND ST 2ND PL

4TH PL 1ST PL PLAVIATION 1ST ST 1ST ST 3RD PL 3RD ST RONDA DR 2ND ST POINSETTIAAVE DUNCAN PL GATES AVE GATES AVE 1ST ST DUNCAN AVE CURTIS AVE 1ST PL CURTIS AVE HOMER ST FRANCISCO ST BOUNDARY PL TERRAZA PL VOORHEES AVE VOORHEES AVE KUHNDR RUHLAND AVE

KEATS ST PECKAVE Legend SHELLEY ST NELSON AVE TENNYSON ST City of MATHEWS AVE

Soil Type Hermosa ARTESIA BLVD AVIATION WY City of Oakley Fine Sand (Soil Type 10) Beach Redondo Beach Chino Silt Loam (Soil Type 3) Ramona Sandy Loam (Soil Type 14) ³ CITY OF MANHATTAN BEACH 0 1,000 2,000 4,000 WASTEWATER MASTER PLAN Montezuma Clay Adobe (Soil Type 9) Feet 1" = 2,000' PROJECT NO: 1640901.10 Soils Map DATE: September 2009 Figure 3-2 STUDY AREA

3-4 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 - 62°F. Due to the moderating effect of the ocean, temperatures are cooler than the inland areas of Los Angeles, where temperatures frequently exceed 90°F. The coolest months are typically December and January with an average minimum temperature of 48 F. The seasonal rainfall for the City between 1990 and 2008 are illustrated on Figure 3-3 (LACDPW Rain Gauge Site 1070, Los Angeles County Hydrology Department). The average annual rainfall of about 13.19 inches occurs primarily during the winter months, between November and March.

Figure 3-3 Seasonal Rainfall 1990-2008

30 LACDPW Rain Gauge Site - 1070

25

20 Average = 13.19 Inches

15

Precipiation (in) Precipiation 10

5

- 1990/1991 1991/1992 1992/1993 1993/1994 1994/1995 1995/1996 1996/1997 1997/1998 1998/1999 1999/2000 2000/2001 2001/2002 2002/2003 2003/2004 2004/2005 2005/2006 2006/2007 2007/2008 Year

3-5 LAND USE

The land use information utilized in the preparation of this Master Plan is obtained from the City’s 2003 General Plan land use shapefile (GENPLAN). This information was supplemented by aerial photographs, field reviews, and information provided by City staff.

The City is a well planned urban community with a balance of residential, commercial, and industrial land uses. The primary land use is residential (1,422 net acres or 70.5 %). The total study area includes approximately 2,017 net acres.

3-4 City of Manhattan Beach R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan STUDY AREA

According to the 2008 California Department of Finance, the total number of housing units within the City is estimated at 15,580 with a 3.72 percent vacancy rate. Table 3-1 provides a summary of the existing land uses within Manhattan Beach. Figure 3-4 illustrates the locations of these land uses.

Table 3-1 Existing Land Uses Net Area Land Use (Ac) Percentage Low Density Residential 1,122.5 55.7% Medium Density Residential 148.5 7.4% High Density Residential 150.9 7.5% Total Residential 1,422.0 70.5% General Commercial 87.7 4.3% Downtown Commercial 13.8 0.7% Local Commercial 12.4 0.6% Mixed-Use Commercial 3.5 0.2% Manhattan Village Commercial 102.4 5.1% North End Commercial 7.6 0.4% Total Commercial 227.3 11.3% Industrial 72.6 3.6% Parks and Open Sace 152.3 7.6% Public Facilities 142.6 7.1% Total 2,016.7 100.0%

Residential Land Uses

Low density residential uses provide for single-family residences within a density range of 1.0 to 16.1 units per acre. Typically, the units are detached homes on individual lots.

Medium density residential uses allow for single-family homes, duplexes, and triplexes, including condominiums. Multiple family housing with four or more units may also be permitted. Densities range from 11.6 to 32.3 units per acre.

High density residential uses allow for all types of housing, including apartments, condominiums, and senior housing. Densities can reach up to 51.3 units per acre.

Other permitted uses in residential area include parks and recreation facilities, public and private schools, public safety facilities, and facilities for religious assembly.

The maximum density allowed within each residential use category varies citywide, based on historic development patterns and street configurations. The City has established four districts with various maximum permitted residential densities.

3-5 City of Manhattan Beach R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan CREST DR 45TH ST GULL ST 44TH ST SHELL ST 43RD ST SEAVIEW ST 42ND ST MOONSTONE ST 41ST ST City of KELP ST 40TH ST El Segundo EL PORTO ST 39TH ST GRANDVIEW AVE ROSECRANS AVE 38TH PL 36TH PL 38TH ST 36TH PL 36TH ST ROSECRANS PL PARKVIEW AVE Manhattan 36TH PL 35TH PL City 35TH PL Marketplace 36TH ST AVE OAK MARKET PL Yard VILLAGE DR ELM AVE ELM 34TH PL 35TH ST City of 35TH 35THPL ST 34TH ST 33RD PL AVE PINE

HIGHLAND AVE 33RD PL BELL AVE REDONDOAVE Hawthorne 34TH PL 33RD ST FAIRWAY DR VISTA DR 33RD ST Mariott THE STRAND ALMA AVE WAY CEDAR OCEAN DR CREST DR AVE WALNUT Manhattan MANHATTAN AVE 33RD ST BAYVIEW DR 31ST PL Golf Course The Strand Village Manhattan Park 31ST ST AVE POINSETTIA Sand

PALM AVE PALM Village

30TH ST CHATHAM Raleigh Dune AVE MAPLE VALLEY DR Studios 30TH PL Park BELL AVE BLANCHE RD 30TH ST 30TH PL 29TH ST BLVD AVIATION 30TH ST29TH PL

LAUREL AVE LAUREL 29TH PL 27TH ST 28TH ST 29TH ST 28TH PL Legend

CARLOTTA WAY CARLOTTA BRIDGEPORT BRIDGEPORT 29TH PL WESTPORT 27TH PL SAUSALITO CIR SAUSALITO Marine 28TH 28THPL ST 26TH ST MAGNOLIA WAY Avenue 26TH PL Grandview VILLAGE CIR MALAGA WY Park 27TH ST Elementary DOVER PL Marine Sports Park 25TH ST RD AGNES 27TH PL 26TH PL School MARINE AVE City Boundary 26TH ST 23RD ST MANOR23RD DR PL AVE PINE 25TH PL 22ND ST 23RD ST Low Density Residential

FLOURNOY RD 23RD ST 25TH ST 22ND ST 24TH PL 24TH 23RD ST PL AVE PALM 21ST ST Medium Density Residential

MARINE PL AVE OAK

21ST PL JOHN ST

CHESTNUT AVE CHESTNUT

19TH ST AVE ELM 23RD 23RDPL ST AVE CEDAR 20TH ST

HERRIN AVE HERRIN

19TH ST AVE PECK High Density Residential

MARINE AVE RDAGNES 21ST PL 18TH ST 18TH ST Water 18TH ST Res 21ST ST Live 18TH ST Downtown Commercial 20TH PL Oak 20TH ST Park 17TH ST 19TH PL 17TH ST WY WENDY Local Commercial

FAYMONT AVE FAYMONT 19TH ST 17TH ST Manhattan Manhattan

Pacific LN MANZANITA Beach Beach DR LYNNGROVE 18TH PL AVE PINE Elementary Intermediate 15TH ST MEADOWS AVE MEADOWS Meadows Middle General Commercial 18TH ST School 14TH ST 17TH PL 15TH ST Elementary School School School 17TH ST LAUREL SQ 16TH PL 12TH CT 12TH ST North End Commercial 14TH ST Polliwog 12TH ST

WALNUT AVE WALNUT

16TH ST AVE MAGNOLIA

15TH PL AVE CHESTNUT Park 13TH ST 12TH ST Civic AVE PACIFIC MANHATTAN BEACH BLVD Manhattan Village Center 11TH Pl Pacific Ocean 14TH PL 12TH ST MORNINGSIDE DR Manhattan 14TH ST 11TH ST Heights Park Mixed-Use Commercial 13TH ST 11TH PL 13TH PL HIGHVIEW AVE 10TH ST Industrial 12TH PL12TH ST CENTER PL 11TH PL 9TH ST Parks / Open Space ARDMORE AVE 11TH PL11TH ST CREST9TH DR PL 8TH ST 10TH ST Public Facilities

10TH PL PL PACIFIC 8TH PL Water

SEPULVEDA BLVD SEPULVEDA

9TH PL 6TH ST JOHN ST 6TH ST Res 9TH ST AVE ROWELL

7TH PL STHARKNESS

JOHNSON JOHNSON ST 8TH PL AVE REDONDO 8TH ST 7TH ST 6TH PL 5TH ST

JOHN JOHN PL 5TH ST 5TH ST 7TH PL 5TH PL 6TH PL6TH ST

DIANTHUS ST

3RD ST STLARSSON

ANDERSON STANDERSON 3RD ST 3RD ST 5TH ST 4TH PL City of 5TH PL The Strand 3RD PL

4TH PL 4TH ST 2ND ST Redondo Beach AVIATION PL AVIATION 2ND PL 1ST PL HALEY WY 3RD ST 1ST ST 1ST ST

POINSETTIA AVE POINSETTIA 1ST ST 2ND PL 3RD PL RONDA DR

2ND ST1ST PL HERRIN ST DUNCAN PL GATES AVE 2ND PL Pennekamp GATES AVE 1ST PL 1ST ST Elementary Robinson DUNCAN AVE DUNCAN DR CURTIS AVE School Elementary School TERRAZA PL CURTIS AVE HOMER ST BOUNDARY PL VOORHEES AVE VOORHEES AVE

KUHN DRKUHN

RUHLAND AVE KEATS ST City of Mira Costa NELSON AVE CHABELA DR High School ³ Hermosa Beach AVE PECK 0 600 1,200 2,400 TENNYSON ST CITY OF MANHATTAN BEACH Feet MATHEWS AVE WASTEWATER MASTER PLAN AVIATION WY AVIATION 1" = 1,200' AVE PROSPECT ARTESIA BLVD PROJECT NO: 1640901.10 Land Use Map DATE: September 2009 Figure 3-4 STUDY AREA

The district boundaries are illustrated on Figure 3-5. The residential density requirements of each district are shown in Table 3-2.

Table 3-2 Residential Density Requirements by District

District Number Density Low Density Medium Density High Density Maximum Density (du/ac) 5.8 11.6 43.6 1 Population Density (persons/ac) 11 18 85 Maximum Density (du/ac) 9.5 18.9 43.6 2 Population Density (persons/ac) 16 35 75 Maximum Density (du/ac) 16.1 32.3 51.3 3 Population Density (persons/ac) 29 46 85 Maximum Density (du/ac) NA NA 51 4 Population Density (persons/ac) NA NA 120

District 1 is bounded by Manhattan Beach Boulevard to the north, Aviation Boulevard and Aviation Way to the east, Artesia Boulevard and Boundary Place to the south, and Ardmore Avenue to the west. It includes areas referred to as the Hill Section and the Eastside south of Manhattan Beach Boulevard.

District 2 covers the area south of Rosecrans Avenue, west of Aviation Boulevard, north of Manhattan Beach Boulevard, and east of Valley Drive and Bell Avenue. It includes the areas referred to as the Tree Section, Manhattan Village, and the Eastside north of Manhattan Beach Boulevard.

District 3 is bounded by Rosecrans Avenue and Rosecrans Place to the north, Bell Avenue, Valley Drive, Laurel Avenue, and Ardmore Avenue to the east, Francisco Street and Homer Street to the south, and the Pacific Ocean to the west. It includes the areas referred to as the Sand Section, Downtown Manhattan Beach, the Grandview area, a portion of the Tree Section and Hill Section, and parts of the North End.

District 4 covers the area south of 45th Street, west of Crest Drive, north of Rosecrans Place, and east of the Pacific Ocean. It includes the area referred to as the El Porto Section of the North End.

Commercial Uses

The City has six (6) different commercial land use categories, which were established to meet the needs of residents while preserving the unique characteristics of Manhattan Beach. The City’s commercial land uses include General Commercial, Downtown Commercial, Local Commercial, Mixed-use Commercial, Manhattan Village Commercial and North End Commercial. Commercial land uses are located primarily along Manhattan Beach Boulevard, Sepulveda Boulevard, the Downtown area, Manhattan Village, and the Northwest corner of the City along Highland Avenue.

General Commercial land use permits retail, service commercial, and professional office uses aimed at meeting the needs of local residents and businesses, and to provide goods and services for the regional market. The maximum floor area factor (FAF) allowed is 1.5.

3-7 City of Manhattan Beach R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan City of El Segundo North End/ El Porto City of Hawthorne

Manhattan Village Sand Section Tree Section

Sepulveda Blvd City of Pacific Ocean Redondo Beach Downtown

Hill Section

Sand Section Eastside

Legend

District 1 City of District 2 Hermosa Beach District 3 ³ CITY OF MANHATTAN BEACH District 4 0500 1,000 2,000 WASTEWATER MASTER PLAN Feet Residential District 1" = 2,000' PROJECT NO: 1640901.10 Boundary Map DATE: September 2009 Figure 3-5 STUDY AREA

Downtown Commercial land use applies to the commercial area surrounding the intersection of Manhattan Beach Boulevard and Highland Avenue. The downtown commercial land use attracts businesses that provide goods and services to primarily beach visitors. Commercial and residential land uses may be mixed at a maximum FAF for commercial development of 1.5, and a maximum residential density is 51.3 units per acre.

Local Commercial land use permits businesses, which serve the local community. The maximum FAF allowed is 1.5.

Mixed-Use Commercial land use provides parking for the heavy commercial uses along Sepulveda Boulevard, while protecting the privacy of the residents in nearby homes. The maximum FAF allowed is 1.0.

Manhattan Village Commercial land use consists of primarily shopping facilities, department and specialty stores, and entertainment and restaurant establishments. The maximum FAF allowed is 1.5.

Located along Highland Avenue between 33rd and 42nd Street, the North End Commercial land use provides neighborhood-serving establishments. The maximum FAF allowed is 1.5.

Industrial Uses

Industrial land uses are located in the northeast corner of the City and provide for low-intensity warehousing and distribution, research and development, and other specialized industrial uses. The industrial uses primarily consist of the Northrop Grumman and Raleigh Studios, which are located west of Aviation Boulevard between Rosecrans Avenue and Marine Avenue. The maximum FAF allowed is 1.5.

Parks and Open Space

Parks and Open Space land use includes the public parks, Veterans Parkway, the Beach and Strand.

Public Facilities

Public Facilities land use is designated for uses, which benefit the public. Public Schools, government offices, libraries, cultural centers, and neighborhood community centers are all included under this land use designation.

3-6 POPULATION

Since its incorporation in 1912, the City of Manhattan Beach has grown from a population of 600 to 36,718 in 2009 (California Department of Finance, Demographic Research Unit). The City’s population history is illustrated on Figure 3-6

With the total number of housing units at approximately 15,580 and a 3.72 percent vacancy rate, the population per household is estimated to be 2.45 (California Department of Finance, Demographic Research Unit).

3-9 City of Manhattan Beach R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan STUDY AREA

Figure 3-6 City of Manhattan Beach Population History

36,718 2009

2000 33,852 32,063 1990

1980 31,542

1970 35,352 Year 1960 33,934

17,330 1950

1940 6,398

1930 1,891

1920 859 0 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000

Population

3-10 City of Manhattan Beach R:\Rpts\Manhattan Beach\Wastewater Master Plan Wastewater Master Plan