The following are the specific proposed plans for the 95 acres
within the specific plan:
A.
Land
Use Within Specific Plan – North.
1.
The
northern specific plan east of Yucca Ridge Road includes 38 single-family
residential lots of a minimum 20,000 square feet, served by an internal
"loop" street with access to Yucca Ridge Road and Barranca Avenue.
2.
The
northern specific plan west of Yucca Ridge Road includes 12 single-family
residential lots of a minimum 20,000 square feet, served by a cul-de-sac
street with access to Yucca Ridge Road.
B.
Land
Use Within Specific Plan – South.
1.
The
southern specific plan includes 74 single-family residential lots
of a minimum 20,000 square feet, served by an extension of Baldy Vista
Avenue that proceeds south then east to Barranca Avenue.
2.
The
design accounts for access provisions concerning a private agreement
that the Monrovia Nursery property owners made regarding the Fairmount
Cemetery.
3.
A
private drive will serve a residence north of Fairmount Cemetery and
five new residential lots of at least 20,000 square feet.
4.
A
linear park along the Burlington Northern Santa Fe Railroad right-of-way
has been included. The park includes a trail; an extension of the
trail in place east of Barranca Avenue within the Arboreta planned
community.
5.
A
stormwater detention facility in the southwest corner of the Specific
Plan is proposed, replacing the existing Citrus basin.
|
Figure 3: Existing Zoning and General Plan Designations
 |
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
The specific plan area is currently zoned for, and designated
as detached single-family residential and will remain as such.
A.
Zoning.
Although the actual zoning for the specific plan area will be "SP"
(specific plan), development will adhere to the provisions of the
specific plan and also use the city of Glendora's E-7 20,000 zoning
district standards as a guide. The specific plan requires minimum
20,000 square foot lots.
B.
General
Plan. The specific plan is in conformance with and consistent with
the general plan maintaining the properties' current low-density residential
designation (1-3 du/ac).
|
Figure 4: Proposed Circulation
 |
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
A.
Project
Access—Circulation—Street Improvements. As shown in Figure
4, several new streets and street extensions are proposed in the specific
plan. Street designs for all proposed new streets and street extensions
are shown in Figures 6 through 9.
1.
Within
the Specific Plan – North.
a.
Loop Street. An internal "loop" street serves the northern specific
plan area east of Yucca Ridge Road with access to Yucca Ridge Road
and Barranca Avenue.
b.
Cul-de-Sac. A cul-de-sac street serves the northern specific plan
west of Yucca Ridge Road with access to Yucca Ridge Road.
c.
No Direct Connection to Sierra Madre. No new road has a direct connection
to Sierra Madre Avenue.
d.
Calera Drive Unextended. Calera Avenue remains unextended, with the
exception that lockable decorative bollards will allow emergency access
to the northern specific plan through the existing terminus of Calera
Avenue.
2.
Within
the Specific Plan – South.
a.
Baldy Avenue Extension. The southern specific plan area will be served
by an extension of Baldy Vista Avenue that will extend south then
east to Barranca Avenue.
b.
Street Network. A street connecting to Barranca Avenue is proposed
that reaches the border with Azusa, but does not cross the boundary.
Four streets link to this street, creating a network that serves specific
plan - south.
c.
Private Drive. A private drive serves five lots and an existing home
and provides access to Fairmount Cemetery.
|
Figure 5: Sierra Madre Avenue Improvement
 |
d.
Traffic Signal. The purpose of the signal is to allow a u-turn movement
at the intersection enabling residents to have access to the site
from the south-bound leg of Barranca. No left turn into the site is
allowed from northbound Barranca because the proximity of the railroad
track to the project entry makes the left turn unsafe in the event
of vehicle queuing to make the left. But it also does provide the
means of access to the linear park but this is a secondary purpose.
B.
Emergency
Access Points. Four emergency access points are located in Figure
4, Proposed Circulation, and detailed designs of each are shown in
Figures 10 through 13.
C.
Sierra
Madre Avenue Widening. Sierra Madre Avenue is an important and popular
route that forms the northern edge of the specific plan. It serves
as a critical circulation element for automobiles and should serve
as a safe and convenient pedestrian route, as well. However, in its
current state Sierra Madre Avenue has, effectively, no pedestrian
or bicycle facilities. The right-of-way consists of a narrow two-lane
road with nearly no shoulders and a severe drop-off without any sidewalks,
curbs, barriers or landscaping.
The specific plan calls for retaining the northern edge of pavement
but regrading and widening the roadbed, adding an 8-foot on-street
parking lane on the north and potentially, curb and gutter. Further
to the south is a 12-foot westbound travel lane, a 12-foot center
turn lane, and a 12-foot eastbound travel lane, and a 14-foot-wide
landscape area with a sidewalk/trail and up to a 6-foot high masonry
theme wall consistent with the delineation of existing subdivisions
east of the specific plan area.
D.
The
Closure of Milton Drive. The specific plan shall provide for a closure
of Milton Drive substantially in compliance with Exhibit A (see Appendix
6), and subject to the approval of the County of Los Angeles. The
City Engineer shall have the authority to determine substantial compliance.
If the County of Los Angeles does not approve closure of Milton Drive,
traffic calming measures shall be constructed on Milton Drive, substantially
in compliance with Exhibit B and C (see Appendix 6). The City Engineer
shall have the authority to determine substantial compliance.
|
Figure 6: Street Design—Sierra Madre Avenue
 |
|
Figure 7: Street Design—Streets "C," "D" (North)
and Streets "A" (South) and Baldy Vista Avenue
 |
|
Figure 8: Street Design—Streets "A, B, E, F, G"
(North) and "B, C, D, E, F, G"(South) and West Danton Drive
 |
|
Figure 9: Street Design—Private Drive
 |
|
Figure 10: Emergency Access—Calera Avenue
 |
|
Figure 11: Emergency Access—Citrus Avenue/Monrovia
Lane
 |
|
Figure 12: Emergency Access—West Danton Drive
 |
|
Figure 13: Emergency Access—Oakbank Drive
 |
|
Figure 14: Linear Park Concept
 |
|
Figure 15: Linear Park Cross Sections "A-A," "B-B"
 |
|
Figure 16: Linear Park Cross Section "C-C"
 |
E.
Linear
Park/Linear Sidewalk. A linear park is proposed to be located at the
southern extreme of the specific plan adjacent to the Burlington Northern
Santa Fe Railroad right-of-way. The park serves as a continuation
of the existing park and trail created with the Arboreta planned community
(see the Arboreta specific plan) east of Barranca Avenue. A portion
of the park functions as a water quality facility by incorporating
drainage swales. The park includes a decorative fence separating the
park from the railroad right-of-way.
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
A.
Grading
Plan and Grading Cross Sections. Grading is to conform to the final
geotechnical report as part of the approval process of any subdivision
or parcel map and applicable local grading regulations. The Monrovia
Nursery property has been used as a commercial nursery for several
decades and has been graded for that purpose. This specific plan transforms
this land into two residential lot subdivisions with minimum 20,000
square-foot parcels; this will require new grading which will conform
to this specific plan.
1.
The
northern specific plan generally slopes to the south at an approximate
grade of 10% with an approximate 65-foot elevation change across the
site which is only 600 feet wide. The site is bound to the north by
Sierra Madre Avenue, Barranca Avenue to the east, and existing residential
lots to the south and west. To accommodate this grade difference within
the project site, the grading plan has been sensitive to grade transitions
to avoid the feel of new structures "towering" over the existing residences.
The site is kept at an elevation below Sierra Madre to help diminish
the vertical difference across the site and will also allow the residences
on the north side of Sierra Madre to continue to enjoy their views
to the south. The slopes in this area are kept at an approximate maximum
height of 25 feet to help reduce the vertical difference to the existing
residences to the south and between proposed residences in this new
subdivision.
|
Figure 17: Grading Plan
 |
2.
The
southern specific plan slopes generally to the southwest. The low
point of the site is at the corner of Citrus Avenue and the existing
Burlington Northern Santa Fe Railroad (the southwest corner of the
specific plan). As such, the project's detention basin is located
here. The grading of this southern site is dominated by the existing
edge conditions, as the site is adjacent to existing residences to
the north, east, and west, and the existing BNSF Railroad to the south.
The proposed grading of this area reduces the size of the slopes between
the new and existing residences to better blend the site into the
neighborhood while also balancing the site.
3.
The
Fairmount Cemetery is surrounded by the specific plan. In response,
the plan maintains access to, and includes a landscape buffer around,
the historic cemetery.
4.
A
private street is included to the highest point of the southern project
site, north of the Fairmount Cemetery to access five (minimum 20,000
square foot) lots and to provide access to the existing residence
on top of the hill at 1326 Sierra Madre Avenue. This private street
will not exceed a maximum grade of 15%.
5.
To
insure that all existing facilities, utilities and easements are taken
into account, and that the grading is within appropriate guidelines
for all agencies affected by the project, the developer's engineer
shall submit the grading plans to all affected agencies for review
and approval prior to the issuance of a grading permit from the city
of Glendora.
B.
Grading
Plan Development Standards.
1.
All
grading must be in substantial conformance with the overall conceptual
grading plan, the Uniform Building Code, Chapter 70, and city of Glendora
standards and ordinances.
2.
Prior
to any development within any area of the specific plan, an overall
conceptual grading plan for the portion in process shall be submitted
for planning department approval as required. The grading plan for
each area shall be used as a guideline for subsequent detailed grading
plans for individual stages of development within that area, and shall
include preliminary pad and roadway elevations.
3.
Unless
otherwise approved by the city of Glendora, all cut and fill slopes
shall be constructed at inclinations of no steeper than 2 horizontal
feet to 1 vertical foot.
4.
A
grading permit shall be obtained from city of Glendora, prior to grading.
5.
Grading
activity shall comply with South Coast Air Quality Management District,
Rule 403.
6.
Erosion
control practices shall be implemented during grading activities.
7.
The
grading contractor shall be required to obtain an encroachment permit
from any agency or city prior to entering any public rights-of-way.
8.
All
construction activities, including clearing, grading, or excavation
that results in the disturbance of at least one acre total land area,
or activity which is part of a larger common plan of development of
one acre or greater shall obtain the appropriate National Pollutant
Discharge Elimination System (NPDES) construction permit and pay the
appropriate fees. All development within the specific plan boundaries
shall be subject to future requirements adopted by the city of Glendora
to implement the NPDES program.
|
Figure 18: North Cross Sections "A-A," "B-B"
 |
|
Figure 19: South Cross Sections "C-C," "D-D," "E-E"
 |
(Ord. 1944 §§ 1,
2 (Exh. A), 2011; Ord. 1965 § 2,
2012)
The specific plan has addressed several key issues related to
drainage and water quality design requirements. The proposed drainage
plan will help alleviate existing flooding concerns, adequately convey
proposed stormwater runoff within proposed storm drain systems, and
will include the use of existing and proposed detention facilities
on-site and off-site to reduce peak runoff rates to levels equal to
or less than pre-project levels and below the design capacity of the
downstream storm drain system. The proposed water quality plan for
stormwater runoff will help reduce the transport of urban pollutants
that may occur on-site towards downstream receiving waters. Following
are descriptions of the project area hydrology, detention, hydraulics,
and water quality.
A.
Hydrology.
A preliminary drain, detention and SUSMP Analysis for Monrovia Nursery
Project-Glendora Portion August 11, 2010 (Preliminary Drainage Report)
for the specific plan has been prepared to analyze the hydrologic
impacts of development for the north and south portions of the city
of Glendora Monrovia Nursery project area. The Monrovia Nursery property
was previously comprised of nearly 600 acres that extended across
the city of Azusa and city of Glendora. A portion of the property
was sold in recent years for the development of the city of Azusa
portion, leaving the city of Glendora portion as a separate development
project. This is an important consideration as both portions share
the same overall watershed that is tributary through the project area
and share an outfall location at the southwest corner of the specific
plan, referred to as the 1264 Drain, located at the intersection of
the existing railroad and Citrus Avenue which is maintained by Los
Angeles County.
The preliminary hydrology for the specific plan includes a comprehensive
analysis of the overall watershed, including both the city of Azusa
and city of Glendora project areas that are tributary to the 1264
Drain. For the specific plan, the existing condition is considered
the proposed condition from the city of Azusa project, with the north
and south portions of the Glendora project undeveloped. The proposed
condition for the Glendora project models the north and south portions
as developed, and uses a proposed storm drain alignment that conveys
flows from the north to the south within Baldy Vista Avenue to the
southwest corner of the project into a proposed detention facility,
referred to as Facility G1.
B.
Detention/Detention
Basins. The following list identifies the names and locations of existing
and proposed detention basins that are relevant to the specific plan.
(See Figure 20, Stormwater Plan, for locations.)
|
Figure 20: Stormwater Plan
 |
1.
Facility
2B (Existing). Located just west of West Leadora Avenue, on the city
of Azusa side of the city boundary line. It was constructed as part
of the Azusa project and was designed to discharge less than 40 cubic
feet per second (cfs).
There are no physical modifications proposed for Detention Basin
2B. The northwest portion of the project will continue to drain through
Detention Basin 2B. Due to the development, the amount of runoff entering
and exiting the basin will increase compared to existing conditions,
however, the design for 2B accounted for the future developed condition
of this area. Therefore, the maximum water surface elevation (WSEL)
will remain within the basin and the maximum outflow will remain within
the 40 cfs design criteria originally intended for the facility as
a part of the adjacent city of Azusa.
2.
Facility
4D (Existing). Located further south along the city boundary line,
and southwest of Fairmount Cemetery, this detention basin straddles
the municipal boundary, existing within both the city of Azusa, and
the city of Glendora.
|
Figure 21: Watershed
 |
The specific plan proposes that the Glendora portion
of Detention Facility 4D be filled, fulfilling an agreement between
the city of Azusa and the city of Glendora. Then Glendora runoff is
to be redirected to proposed Detention Facility G1. Detention Basin
4D would, therefore, experience a significant decrease in tributary
area, a slight increase in the maximum WSEL for a 50-year design storm,
and a significant decrease in maximum outflow into the existing storm
drain system in Citrus Avenue. The increase in the maximum WSEL is
acceptable since the maximum WSEL remains well below the top of basin
elevation.
3.
Facility
G1 (Proposed). Proposed to be located at the southwest corner of the
specific plan and intended to replace the Glendora portion of Facility
4D. It would be installed near the northeast corner of the Citrus
Avenue and existing Burlington Northern Santa Fe Railroad intersection.
Detention Basin G1 will be constructed as part of the specific
plan and would receive runoff from a majority of the north and south
portions of the specific plan, the tributary watershed north of Sierra
Madre Avenue that will be conveyed through the specific plan, and
from the existing neighborhood located between the north and south
specific plan.
The resulting discharge rate at Outfall 2C (approximately 620
cfs), into Los Angeles County department of public works 1264 Drain
(78-inch reinforced concrete pipe), will be less than the approved
post-project flow rates in the approved August 2005 report prepared
for the adjacent city of Azusa project, and significantly less than
the approved design discharge flow rate of 920 cfs for the 1264 Drain
(also identified in the August 2005 report).
|
Figure 22: Facility G-1
 |
C.
Hydraulics—Storm
Drain. There are existing drainage problems, as addressed in the Preliminary
Drainage Report dated August 11, 2010 (i.e., flooding concerns) identified
within the specific plan. Proposed drainage improvements should help
alleviate these issues and adequately convey runoff through the specific
plan to the downstream storm drain facility (at the southwest corner
of the project site). The proposed improvements will be sized to convey
off-site flows received from the north (entering the site from Sierra
Madre Avenue at two separate locations), from the west (entering the
site from one existing detention basin, while the other existing detention
basin is routed down Citrus Avenue within the city of Azusa project
limits), and on-site flows from throughout the specific plan and surrounding
neighborhood (both existing and proposed residential streets and lots).
The exact alignment of the main storm drain segments is subject
to minor adjustment in final engineering; however, the storm drain
systems will run towards the southwest corner and ultimately discharge
to the Los Angeles County Department of Public Works facility (1264
Drain – 78-inch reinforced concrete pipe). A preliminary layout
for the proposed storm drain system and existing storm drain systems
to remain in place are shown in Figure 20, Stormwater Plan.
D.
Water
Quality—Permanent Stormwater BMPs.
1.
In
the city of Glendora, water quality treatment solutions are to use
infiltration, extended detention, or retention based solutions. For
large single-family lots, requirements include installing an infiltration
trench or bioretention area on each single-family lot, sized to infiltrate
0.75 inches from the lot. Each lot will utilize one of these methods
(or combination thereof) to satisfy the water quality treatment requirements;
however, the newly created streets also require treatment. Among the
solutions for stormwater will include one of the following (or an
approved equivalent):
a.
Vegetated swales with infiltration (where feasible);
b.
Bioretention areas adjacent to inlet locations;
c.
Proprietary systems such as Filterra or Modular Wetland at each inlet
location.
|
The bottom portion of Detention Basin G-1 will be used for infiltration
or extended detention (water quality benefits), limited to streets
in close proximity to the basin.
|
2.
Pursuant
to Low Impact Development (LID) requirements, each lot in the specific
plan will be required to utilize site design Best Management Practices
(BMP) directing impervious areas to pervious areas (i.e., roof drains
to landscaping), and street runoff will be directed to vegetated areas
as well, where feasible. Therefore, water quality treatment, LID,
and EPI requirements will be met with a variety of permanent stormwater
BMP solutions. For portions of the streets where it is not feasible
to direct runoff to natural vegetated areas, then proprietary bioretention
systems may be utilized that will provide contact time with soil and
vegetation for water quality storm events.
3.
The
following summarizes the preliminary solutions proposed for water
quality and LID/EPI requirements:
4.
Each
of the above systems will be numerically sized to detain, retain,
or infiltrate the first 0.75 inches of stormwater runoff where feasible,
with remaining areas numerically sized to treat 0.75 inches or a comparable
treatment flow rate (cfs), such as bioretention systems at inlet locations.
Preliminary locations of these facilities are shown in Figure 23,
Water Quality Plan.
|
Figure 23: Water Quality Plan
 |
5.
These
permanent stormwater BMPs located on lots will be maintained by the
private landowner or an established homeowner's association; the permanent
BMPs installed for treatment of public street runoff will be maintained
by the city of Glendora. In the case of the soft bottom detention
basin, the Los Angeles County department of public works/Los Angeles
County flood control district will assume operation and maintenance
responsibilities, upon its acceptance into the Los Angeles County
flood control district.
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
The specific plan consists of detached single-family residences
on parcels of at least 20,000 square feet, affording every homeowner
with a significant private open space within their own lot. Therefore
public open space was not a driving emphasis of the plan. However,
open space is still important to engender a sense of shared experience
and community, especially open space that contains amenities to encourage
pedestrian and bicycle circulation. This specific plan proposes several
open space facilities that demonstrate an appreciation for the history
of the area, and foster neighborhood interaction.
A.
Linear
Park. The specific plan includes a linear park adjacent to the Burlington
Northern Santa Fe Railroad that include facilities similar to those
already in place in the linear park east of Barranca Avenue, including
a trail/sidewalk, a noise attenuation wall, stormwater facilities,
and landscaping.
B.
Linear
Sidewalk. Throughout the specific plan non-contiguous sidewalks are
to be installed concurrent with new development. These sidewalks will
be separated from the street with a landscaped parkway. Of particular
significance are the new sidewalks proposed within the Linear Park
and the meandering sidewalk on the south side of the improved Sierra
Madre Avenue.
C.
Fairmount
Cemetery. Fairmount Cemetery is an important and revered local historic
landmark. The specific plan recognizes this and provides a landscape
buffer as well as some design details that help parking for special
events.
D.
Homeowner's
Association Lots. Slopes adjacent to some residences, emergency access
points and gateways will be landscaped and maintained by the homeowner's
association. The precise specifics of such will be made a part of
subsequent covenants, conditions and restrictions.
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
Baldy Vista Creek is an open drainage channel which outlets
onto the specific plan area and the Covina Canal is in an existing
water pipe line that will need to be removed and relocated. The flow
in Baldy Vista Creek will be placed in a pipe as it enters the specific
plan area. Easements are proposed to address these elements as well
as nonutility matters such as the Fairmount Cemetery and a new private
drive easement to an existing homesite at 1326 West Sierra Madre Avenue.
A.
1326
West Sierra Madre Avenue. The specific plan anticipates a provision
for an access easement for a private drive to reach the property at
1326 West Sierra Madre Avenue because the current access route to
this property would be eliminated as part of the implementation of
the specific plan.
B.
Fairmount
Cemetery. The specific plan includes a buffer for Fairmount Cemetery
and provides on-street and off-street parking opportunities for services
at the cemetery and maintenance purposes.
C.
Covina
Canal. The Covina Canal within the specific plan is a below grade
facility in a 42-inch ductile iron pipe, though it is partially exposed
at the southern end of Baldy Vista Creek. The specific plan proposes
removing and relocating the pipe. New easements associated with this
action will follow. Prior to recordation of the final map, the subdivider
will be required to obtain the necessary quitclaim deed from the Covina
Irrigating Company (CICO) vacating the easement.
D.
Los
Angeles County Department of Public Works. The Los Angeles County
department of public works is responsible for operations and maintenance
of sewers within the specific plan, a series of easements related
to sewer lines within the specific plan have been incorporated into
the utility plans.
|
Figure 24: Covina Canal Realignment
 |
|
Figure 25: Baldy Vista Creek 2009 Photos
 |
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
A.
The
specific plan's water supply is provided by the city of Glendora.
The Los Angeles County sanitation district provides the sanitary sewer
service. The water and sewer system plan is based on the existing
capacity of water and sewer facilities surrounding the project. The
city of Glendora draws 222 acre-feet per year from the Covina irrigating
canal.
1.
The
following water facilities exist in the vicinity of the project:
|
•
|
Existing 8″ Ductile Iron Pipe in Sierra Madre Avenue
|
|
•
|
Existing 20″ Ductile Iron Pipe in Sierra Madre Avenue
|
|
•
|
Existing 30″ Ductile Iron Pipe in Sierra Madre Avenue
|
|
•
|
Existing 8″ in Yucca Ridge Road
|
|
•
|
Existing 30″ in Yucca Ridge Road (High pressure Transmission
Main)
|
|
•
|
Existing 6″ in Foxglove Court
|
|
•
|
Existing 6″ in Leadora Avenue
|
|
•
|
Existing 30″ in Leadora Avenue (High pressure Transmission
Main)
|
|
•
|
Existing 6″ in Donington Street
|
|
•
|
Existing 6″ in Calera Avenue
|
|
•
|
Existing 6″ in Baldy Vista Avenue
|
|
•
|
Existing 6″ in Milton Drive
|
|
•
|
Existing 6″ in Oakbank Drive
|
|
•
|
Existing 6″ in Danton Drive
|
|
•
|
Existing 8″ in Barranca Avenue
|
2.
The
following sewer facilities exist in the vicinity of the project:
|
•
|
Existing 8″ Sewer in Yucca Ridge Road
|
|
•
|
Existing 8″ Sewer in Sierra Madre Avenue
|
|
•
|
Existing 8″ Sewer in Leadora Avenue
|
|
•
|
Existing 8″ Sewer in Calera Avenue
|
|
•
|
Existing 8″ Sewer in Donington Street
|
|
•
|
Existing 8″ Sewer in Baldy Vista Avenue
|
|
•
|
Existing 8″ Sewer in Milton Drive
|
|
•
|
Existing 8″ Sewer in Danton Drive
|
|
•
|
Existing 8″ Sewer Southerly along the Existing Covina
Canal Alignment, from West Danton Drive to Oakbank Drive
|
|
•
|
Existing 8″ Sewer in Oakbank Drive
|
|
•
|
Existing 8″ Sewer in Barranca Avenue from Leadora Avenue
to Milton Drive
|
B.
Water
System.
1.
The
city of Glendora provides water to customers from three sources:
a.
Groundwater from the San Gabriel Valley Water District (SGVWD).
b.
Surface water from the Metropolitan Water District of Southern California
(MWD) through the Three Valleys Municipal Water District.
c.
Surface water from the Covina Irrigating Company (CIC) by way of
the Covina Canal (42-inch ductile iron pipe). The water is disinfected
with chlorine or chloramines before it is delivered to the customer.
2.
City
water lines exist throughout the specific plan. The specific plan
- north is proposed to obtain service from the existing 8-inch water
lines on Yucca Ridge Road and Barranca Avenue. The specific plan -
south is proposed to obtain service from the 6-inch existing water
lines on Baldy Vista Avenue, Milton Drive, West Danton Drive, Oakbank
Drive and the existing 8-inch water lines on Barranca Avenue. The
domestic water system will be designed and constructed per city of
Glendora standards.
3.
The
domestic potable water system for the entire specific plan will also
be used for fire protection of the site. The domestic potable water
system will include the fire hydrant system and any necessary fire
protection services to insure adequate fire safety for the specific
plan. A hydraulic analysis may be required to determine adequacy of
the existing 6-inch and 8-inch water lines to serve the project, in
which case upsizing of these existing water lines may be required
to ensure adequate water pressure to the proposed residential homes.
|
Figure 26: Water Plan
 |
C.
Sewer
System.
1.
The
specific plan is comprised of a total of 95 acres, 35 acres are part
of the specific plan - north and 60 acres are part of the specific
plan - south. The sanitation district of Los Angeles County provides
wastewater management of the city of Glendora. The city of Glendora
is located in sanitation district No. 22, which operates the San Jose
Creek reclamation plant in the city of Industry.
2.
The
specific plan - north wastewater is conveyed to a low point on Street
"B" at which point it drains southerly through a sewer easement and
connects to the existing local 8-inch sewer line on Calera Avenue.
From this point the 8-inch line flows in Baldy Vista Avenue southerly
to Danton Drive where it connects to the existing sewer outfall.
3.
In
the specific plan - south, sewer on West Danton Drive will be extended
to proposed Street "E," and the flows will be conveyed southerly to
proposed Street "A." The proposed sewer alignment will continue westerly
along Street "A" through a proposed sewer easement along the proposed
detention basin (Lot M). The proposed sewer will continue southerly
under the Burlington Northern Santa Fe Railroad and connect to an
existing 8-inch sewer on Citrus Avenue and Foothill Boulevard. A jack
and bore process will be needed to extend the sewer under the Burlington
Northern Santa Fe Railroad. In anticipation of the development of
the property the Monrovia Nursery company obtained an agreement for
a sewer easement through an adjoining property located at 1155 West
Foothills Boulevard. The sewer line would require coordination, review
and approval from the Southern California Regional Rail Authority.
4.
For
the proposed residential lots draining to the existing sewer on Oakbank
Drive the sewer will be extended westerly from the existing sewer
stub on Milton Drive and Oakbank Drive to the proposed Street "N"
cul-de-sac. Wastewater then flows through an existing 8-inch sewer
pipeline that crosses under the existing Burlington Northern Santa
Fe Railroad along the Oakbank Drive alignment.
5.
To
determine the peak flow generated from the project site, the following
design criteria were used. Generation factors in the 2006 Sewer Master
Plan are based on acreage.
a.
The factor shown on Table 1 was used to determine flows. The factor
is based on five dwelling units per acre and medium low-density residential
flow factor from the 2006 sewer master plan.
b.
Table 2 provides the calculated project sewer flows. A peaking factor
of 1.66 was used to be consistent with the highest diurnal peaking
factor of the 2006 sewer master plan.
|
TABLE 1
| ||
|---|---|---|
|
LAND USE
|
FACTOR (gpd)
|
UNITS
|
|
Residential
|
250
|
Per dwelling unit
|
|
TABLE 2
| |||||||
|---|---|---|---|---|---|---|---|
|
LAND USE
|
UNITS
|
FACTOR (gpd)
|
UNIT
|
AVG. FLOW (gpd)
|
PEAK FLOW (gpd)1
|
PEAK FLOW (gpd)2
|
PEAK FLOW (cfs)
|
|
Residential
|
129*
|
250
|
du
|
32.637
|
37
|
56
|
0.1241
|
|
Notes:
| |
|---|---|
|
*
|
Currently 124 residential units are proposed. Sewer flow calculation
based on September 18, 2007 report prepared by RBF.
|
|
1
|
Based on residential peak factor =1.66 per 2006 sewer master
plan.
|
|
2
|
Based on inflow and infiltration factor of 50% average daily
flow per 2006 sewer master plan.
|
6.
The
specific plan's wastewater is ultimately conveyed to the existing
JOH unit 8-L relief line located on Baseline Avenue south of the project
and this leads to the San Jose Creek reclamation plant. The size of
the relief trunk line is 24 inches to 30 inches and has a capacity
of 20 to 30 cfs. In the beginning of 2009 the relief trunk line was
measured at 4 to 6 cfs peak flow, and therefore currently has the
capacity to serve the specific plan.
D.
Water
and Sewer Development Standards.
1.
All
water facilities will be designed and constructed in accordance with
the city of Glendora Standards and the Standard Specifications for
Public Works Construction, 2009 edition (Green Book).
2.
All
sewer facilities will be designed and constructed in accordance with
the sanitation district of Los Angeles County and the Standard Specifications
for Public Works Construction, 2009 edition (Green Book).
3.
Final
engineering for domestic water and sewer facilities shall be subject
to the appropriate studies to confirm the alignment and capacity of
new or existing lines to serve new development from the project. The
city engineer shall set the criteria used in preparing the studies
and shall also review and approve the studies.
|
Figure 27: Sewer Plan
 |
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
A.
Utility
Plan. The specific plan - north and south is surrounded on the north,
west, and east by existing development served by Southern California
Edison for electricity and the gas company for natural gas. While
portions of the specific plan have electrical service, the gas service
does not currently exist. Nonetheless, both utilities exist in the
roadways and property surrounding the nursery.
B.
Electrical.
The existing locations of the electrical facilities are illustrated
on the following page. All of the existing facilities are located
above ground. In the specific plan - north, electrical facilities
are located on the east side of Yucca Ridge Road north of Sierra Madre
Avenue, west side of Barranca Avenue and along the southern property
boundary. In the specific plan - south, overhead electrical facilities
enter the nursery property south of the Burlington Northern Santa
Fe Railroad tracks between Calvary Lutheran Church and the Autumn
Oaks condominiums. The facilities extend north through the southern
portion of the site into residential areas northeast of the Fairmount
Cemetery. Overhead lines are also located throughout much of the northern
perimeter of the specific plan - south between the property and existing
residences. In general, overhead service is provided to the rear of
the adjacent residential properties. It is anticipated that implementation
of the specific plan will require coordination with Southern California
Edison to extend electrical service into the proposed specific plan.
All new electrical service within the specific plan must be underground.
The developer will need to coordinate with the city and Southern California
Edison to identify existing poles and wires that may need to be relocated
to implement the specific plan.
C.
Natural
Gas. The existing locations of the natural gas facilities are illustrated
in Figure 28, Gas and Electric Utility Plan. No natural gas facilities
are located in the specific plan, however, natural gas facilities
exist in almost all the surrounding streets including: Sierra Madre
Avenue, Barranca Avenue, Yucca Ridge Road, Donington Street, Calera
Avenue, Leadora Avenue, Oakbank Drive, Baldy Vista Avenue, West and
East Danton Drive. It is anticipated that implementation of the specific
plan will require coordination with the gas company to extend natural
gas service into the proposed specific plan.
|
Figure 28: Gas and Electric Utility Plan
 |
(Ord. 1944 §§ 1,
2 (Exh. A), 2011)
