HomeMy WebLinkAbout2013-01-30; Planning Commission; ; CDP 12-25/HMP 13-01 - NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN REPAIR
The City of Carlsbad Planning Division
A REPORT TO THE PLANNING COMMISSION
Item No.
Application complete date: November 20, 2012
P.C. AGENDA OF: January 30, 2013 Project Planner: Pam Drew
Project Engineers: Mark Biskup & Jeremy Riddle
SUBJECT: CDP 12-25/HMP 13-01 - NORTH BATIQUITOS SEWER LIFT STATION
FORCE MAIN REPAIR – Request for approval of a post-emergency Coastal
Development Permit and Habitat Management Plan Permit to: 1) install
approximately 65 lineal feet of 14-inch sewer force main pipe below grade; 2) install a manifold system including valves and appurtenances above grade; and 3) abandon in place approximately 50 lineal feet of 14-inch sewer force main pipe
below grade at the North Batiquitos Sewer Lift Station (NBSLS), located at 7382
Gabbiano Lane, on the north side of Batiquitos Lagoon, in the East Batiquitos
Lagoon/Hunt Properties Segment of the Local Coastal Program and within Local Facilities Management Zone 19.
I. RECOMMENDATION
That the Planning Commission ADOPT Planning Commission Resolutions No. 6940 and 6944
APPROVING Coastal Development Permit (CDP 12-25) and Habitat Management Plan Permit (HMP 13-01) based upon the findings and subject to the conditions contained therein.
II. INTRODUCTION
The project is a post-emergency Coastal Development Permit (CDP) to: 1) install approximately 65 lineal feet of 14-inch sewer force main pipe below grade; 2) install a manifold system
including valves and appurtenances above grade; and 3) abandon in place approximately 50
lineal feet of 14-inch sewer force main pipe below grade at the NBSLS. Because the project had
temporary and permanent impacts to sensitive habitat a Habitat Management Plan Permit (HMP) will also be required.
These permits would permanently authorize the improvements that were completed by the City
of Carlsbad under the emergency CDP 12-22 issued by the City Planner on October 12, 2012 and
to mitigate on site for the temporary and permanent impacts to sensitive habitat. The project complies with all applicable city standards and staff’s recommendation of approval with conditions is supported by the analysis as follows.
III. BACKGROUND
On October 7, 2012 at approximately 8:10 a.m. a sewer line was discovered leaking at the NBSLS. Staff noticed that liquid was being forced up through the pavement on the NBSLS site
every time the sewer pumps were activated. The emergency response crews determined that the
14-inch ductile iron pipe (DIP) force main leaving the station had developed a leak. The 14-inch
DIP force main conveys sewage from the NBSLS to the gravity sewer located along Interstate 5
2
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 2 to the Encina Water Pollution Control Facility (EWPCF). The pipe failure occurred between the
dry well and the isolation valves for the two 14-inch force mains which are parallel within the
NBSLS complex.
Upon discovering the leak, the sewage pumps at the lift station were shut off. To minimize spillage into the Batiquitos Lagoon, six large tanker trucks, ranging in size from 3,700 to 7,000
gallons, pumped and hauled untreated sewage from the influent gravity sewer manholes to the
EWPCF around the clock. However, the tanker trucks weren’t able to capture all the sewage;
therefore, some sewage backed up through adjacent manholes and spilled into the Batiquitos Lagoon and within the adjacent vegetation and trail. A total volume of 1,097,100 gallons of wastewater was hauled away, and a total of 32,040 gallons of sewage was spilled into the
surrounding area, including the lagoon, over the duration of the event.
On October 8th, 2012 work crews were able to cap the primary sewer force main upstream of the suspected leak location. By Monday evening, crews had completed an above grade temporary sewer bypass line until the permanent below grade sewer pipeline could be installed. At this
point there was no longer any danger of continued sewer overflows. Since then, the city’s
contractor has installed new piping and appurtenances and abandoned in place the section of
force main that was leaking. The new segment of sewer force main has been reconnected to the primary and secondary force mains to restore system redundancy. The replacement system provides improved operational advantages including the option of using either of the two
downstream sewer force mains by way of the new above grade valves included in the new
manifold system. The temporary bypass piping has been disconnected and removed. Paving
restoration and clean-up work has been completed. Emergency Coastal Development Permit:
The Acting City Manager declared a local emergency on October 9, 2012 and the City Council
ratified and subsequently extended the emergency declaration on October 23, 2012 and again on
November 6, 2012. The emergency declaration was terminated on November 27, 2012. City of Carlsbad Municipal Code Section 21.201.190(D)(1) and (3) authorizes the City Planner
to issue an emergency coastal development permit if the City Planner finds, in part, that, “An
emergency exists that requires action more quickly than permitted by the procedures for minor
coastal permits or for regular permits and the work can and will be completed within thirty days unless otherwise specified by the terms of the permit,” and the proposed emergency CDP is consistent with the provisions of the city’s East Batiquitos Lagoon/Hunt Properties Segment of
the Local Coastal Program (LCP).
On October 12, 2012 the City Planner issued an emergency CDP (12-22) to: 1) install
approximately 65 lineal feet of 14-inch polyvinyl chloride (PVC) sewer force main pipe below grade; 2) install a manifold system including valves and appurtenances above grade; and 3)
abandon in place approximately 50 lineal feet of below grade 14-inch DIP sewer force main
pipe, including the segment of sewer force main that was leaking.
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 3
PROJECT DESCRIPTION
Temporary Bypass Pipeline:
The initial approach to correct the pipe failure was to excavate to the force main immediately adjacent to the NBSLS concrete pad to locate the point of the break in the force main, and concurrently pump out the incoming wastewater to the NBSLS through the use of pumper trucks
at the upstream manhole. This process was continued until the force main was reached at the
excavation point. At this location no failure of the force main was observed. However, due to the
extreme depth (approximately 15-feet in depth), and safety concerns for the contractors, the decision was made to abandon the investigation of the failure point, and to install a temporary bypass pipeline above ground from an existing bypass connection on the pump discharge
manifold to the original 14-inch DIP force main in order to bypass the area of suspected break
and prevent further spillage. The bypass line allowed the city to maintain the integrity of the
NBSLS and convey all wastewater through a force main rather than pumping wastewater out of the incoming manhole and trucking the wastewater to the treatment facility. This approach allowed staff more time to locate the break point in the force main. The hole in the abandoned
section of force main was discovered through video inspection of the pipeline.
Sewer Force Main and Appurtenances: The contractors installed approximately 65 lineal feet of 14-inch sewer force main pipe below grade to bypass the pipe that had a hole in it. An above grade manifold system, including valves
and appurtenances, were installed adjacent to the NBSLS to allow easier access to shut-off
valves in case of any future emergency. Furthermore, approximately 50 lineal feet of 14-inch
sewer force main pipe was abandoned in place, including the section of pipe that had a hole in it. Top Soil:
City staff removed and hauled away contaminated soil located on the trail and imported sand and
decomposed granite to replace approximately 1- to 2-inches of removed contaminated soil
(approximately five cubic yards). Water Quality:
A total of 27 water samples were collected by Weston Solutions, Inc. at nine locations over a
period of six days after the sewage spill. The last water sample was collected on October 12,
2012. The results of the bacteriological assessment indicate that concentrations of all three indicator bacteria (coliforms concentrations, fecal coliforms concentrations, and Enterococci concentrations) were greater than the state water quality objectives (WQOs) at sites A and B
closest to the location of the sewage spill on the first day of monitoring. Concentrations at these
sites generally decreased over time, but remained above the WQOs at Site B for total coliform
and fecal coliforms on October 9, 2012 and October 10, 2012, respectively.
Enterococcus concentrations were greater than the WQOs on the last day of monitoring at sites A
and B, but total and fecal coliform concentrations were below their respective WQOs by this
time. During the water sampling, total and fecal coliform concentrations were below WQOs at
all sites other than sites A and B closest to the site of the spill. These results suggest that the spill
may not have influenced water quality in areas outside of the immediate spill area. Enterococcus concentrations did exceed the WQOs at sites C (I-5 bridge) and D (Highway 101 and the jetty)
on October 8, 2012 one day after the spill, but not on subsequent sampling days. As a precaution,
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 4 Ponto Beaches were posted with signs warning beachgoers of the possible contamination in the
water, north and south of the jetty, for seven days.
IV. ANALYSIS The proposed project is subject to the following regulations:
A. General Plan Land Use Element;
B. Coastal Development Permit Regulations for the East Batiquitos Lagoon/Hunt Properties Local Coastal Program (LCP) Segment and the Coastal Resource Protection Overlay Zone (Chapters 21.201 and 21.203 of the Zoning Ordinance); and
C. HMP and the Habitat Preservation and Management Requirements (Chapter 21.210 of
the Zoning Ordinance).
The recommendation for approval for this project was developed by analyzing the project’s consistency with the applicable city regulations and policies. The project’s compliance with
each of the above regulations is discussed in detail in the sections below.
A. General Plan Land Use Element The project is located in the Residential Low-Medium Density (RLM) Land Use designation.
The General Plan contains goals, policies, and programs for the protection of environmental
resources; to ensure adequate public facilities; and to ensure the proper disposal of solid and
liquid waste. The project complies with these standards of the General Plan as outlined in Table A below:
TABLE A: GENERAL PLAN COMPLIANCE
ELEMENT STANDARD PROJECT COMPLIANCE?
Land Use Preserve Buena Vista Lagoon
and Batiquitos Lagoon as
visual resources and wildlife
preserves (Environmental – Implementing Policies and
Action Program C.1).
The new segment of
sewer force main has been
reconnected to the
primary and secondary force mains to restore
system redundancy.
Furthermore, the project
includes above grade
valves and appurtenances to allow easy access to
shut-off valves in case of
an emergency. This will
help prevent any future
sewer spills into the lagoon and will protect
the wildlife preserve.
Yes
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 5
TABLE A: GENERAL PLAN COMPLIANCE CONTINUED
ELEMENT STANDARD PROJECT COMPLIANCE?
Land Use A City which ensures the
timely provision of adequate
public facilities and services to
preserve the quality of life of residents (Growth Management and Public
Facilities – Goal A.1).
Replacement of the failed
segment of sewer force
main will ensure adequate
provision of sewer service into the future and will protect the quality of the
trail, lagoon and sensitive
habitat in the area.
Yes
A City that responsibly deals with the disposal of solid and
liquid waste (Growth
Management and Public
Facilities – Goal A.3).
The project will result in a more reliable transfer of
wastewater to the
EWPCF.
Yes
Open Space
&
Conservation
Require all development
projects to comply with the
city’s Habitat Management
Plan (Special Resource Protection-Implementing Policies and Action Programs
C.34).
Temporary and permanent
impacts to upper coastal
salt marsh vegetation will
be mitigated at the ratios stated in Section D, Table 11, of the city’s HMP,
dated 2004.
Yes
B. Coastal Development Permit Regulations for the East Batiquitos Lagoon/Hunt
Properties Local Coastal Program (LCP) Segment and the Coastal Resource
Protection Overlay Zone (Chapters 21.201 and 21.203 of the Zoning Ordinance)
TABLE B: COASTAL DEVELOPMENT COMPLIANCE
LCP Land Use Plan Residential Low-Medium Density (RLM)
General Plan Residential Low-Medium Density (RLM)
Zoning Planned Community (P-C)
Grading Permit Required No
Hillside Development Permit Required No
Native Vegetation Impacts Yes
STANDARD REQUIRED/ALLOWED PROPOSED
Front Yard Setback N/A N/A
Side/Rear Yard Setback N/A N/A
Max Building Height N/A N/A
Lot Coverage N/A N/A
Review of Required Coastal Findings
1. East Batiquitos Lagoon/Hunt Properties Local Coastal Program (LCP) Segment
The project site is located entirely within the East Batiquitos Lagoon/Hunt Properties Segment of
the LCP but is within the California Coastal Commission appeal jurisdiction. The site is also
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 6 located within and subject to the Coastal Resource Protection Overlay Zone (Chapter 21.203) of
the Carlsbad Municipal Code. The replacement of a segment of sewer force main and above-
ground structures are located away from the lagoon and will not obstruct views of the coastline
or Batiquitos Lagoon as seen from public lands or the public right-of-way, nor otherwise damage the visual beauty of the coastal zone. Therefore, the visual beauty and coastal resources within the coastal zone will not diminish with the proposed sewer force main repair project.
Furthermore, the majority of the 1.8 mile trail, along the north shore of Batiquitos Lagoon,
remained open to the public during the sewage repair work. However, out of concern for public
safety, a small section of the westernmost trail was closed briefly to the public while heavy equipment was brought in to stop the sewage spill. The entire length of trail has since been reopened for pedestrian use and no structures were installed that would block or impede public
access.
No agricultural uses currently exist on the site or within the area. The proposed project is not located in an area of known geologic instability. The project will not place any new above ground structures within the limits of the identified 100-year flood hazard areas. Construction of
the project will not place equipment, structures or other materials in areas which could impede
flows of the 100-year flood. Thus no impediment to flood flows will result from implementation
of the project. 2. Coastal Resource Protection Overlay Zone
The project is consistent with the provisions of the Coastal Resource Protection Overlay Zone
(Chapter 21.203 of the Zoning Ordinance) in that the project will adhere to the City's Master Drainage Plan, Grading Ordinance, Storm Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP) and Jurisdictional Urban Runoff Management Program (JURMP) to
avoid increased urban run-off, pollutants and soil erosion. The zone is intended to protect
sensitive resources. It requires preservation of steep slopes with vegetation (dual-criteria slopes)
with some exceptions. No development is proposed in areas of steep coastal bluffs. Furthermore, the project will help reduce the likelihood spills will occur in the future by
providing redundancy and flexibility to the operation of the station. The new above ground
pipeline manifold provides the option to pump into either of the two force mains and also
provides above ground bypass connections which would allow for installation and operation of portable temporary pump system for emergency and maintenance applications. The underground ductile iron pipeline which failed was replaced with polyvinyl chloride (PVC) pipeline. PVC
pipeline has superior resistance to the corrosive environment of wastewater and local soils.
Although there were temporary and permanent impacts to sensitive habitat from the emergency
repair work, staff is working with the Aviara Master Association, Batiquitos Lagoon Foundation, and California Department of Fish and Wildlife on a restoration plan to mitigate on site for the
impacts, pursuant to the city’s HMP, dated November 2004. Mitigation of these impacts is
included as a condition of the CDP.
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 7 There are no prime agricultural lands near the site. Construction of the project did not directly or
indirectly impact local wildlife movement or migratory fish or wildlife movement because the
project is mostly underground and within the NBSLS boundaries.
C. HMP and the Habitat Preservation and Management Requirements (Chapter
21.210 of the Zoning Ordinance)
Temporary impacts to upper coastal salt marsh vegetation were necessary to provide direct
access to various manholes and for staging of vehicles and equipment during emergency response efforts. The city is proposing permanent impacts to accommodate future access to a manhole that was previously surrounded by dense vegetation. Emergency response efforts
resulted in temporary impacts to upper coastal salt march (0.026 acre) and coyote brush scrub
(0.030 acre) and approximately 0.003 acre of proposed permanent impacts to coyote brush scrub
vegetation. Temporary impacts will be mitigated in kind at 1:1 for the 0.026 acre of upper coastal salt marsh.
The replacement will be in situ, with the exception of one area (0.008 acre) where the affected
habitat is isolated from nearby habitat by an unauthorized section of trail. In the case of the
isolated area, the restoration will be implemented within the unauthorized trail. Temporary impacts to coyote brush scrub (0.030 acre) will be mitigated in situ by restoration of
like habitat. Permanent impacts to coyote brush scrub (0.003 acre) will be mitigated at 2:1 ratio,
pursuant to the city’s Habitat Management Plan (HMP), dated November 2004, with the
restoration of 0.006 acre of coastal sage scrub at an unauthorized trail head southeast of the pump station on the northeastern edge of the trail.
A formal restoration plan will be submitted to the California Department of Fish and Wildlife for
their review and approval. The restored area will be monitored for five years with annual reports
to assure that the vegetation is successfully established. Therefore, the proposed project would comply with the HMP guidelines and requirements and would be consistent with the Carlsbad HMP.
V. ENVIRONMENTAL REVIEW
The issuance of an emergency CDP for the project is exempt from California Environmental Quality Act (CEQA) review. CEQA does not apply to actions necessary to prevent or mitigate
an emergency. Per CEQA Section 15269 “emergency” includes such occurrences as fire, flood,
earthquake, or other soil or geologic movements. The repair and replacement work completed
due to a broken sewer line adjacent to the Batiquitos Lagoon constituted an emergency. The city
filed a Notice of Exemption for the emergency CDP project with the County of San Diego on October 12, 2012.
The issuance of a follow-up regular CDP for the sewer repair work, as required by the
emergency CDP, is exempt from CEQA per CEQA Guidelines Section 15302(c) - replacement
or reconstruction of an existing utility system on the same site involving negligible or no expansion of capacity. A Notice of Exemption will be filed by the City Planner upon project
approval.
CDP 12-25/HMP 13-01 – NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN
REPAIR
January 30, 2013
PAGE 8
ATTACHMENTS:
1. Planning Commission Resolution No. 6940 (CDP)
2. Planning Commission Resolution No. 6944 (HMP) 3. Location Map 4. Sewer Force Main Alignments
5. Vegetation Impact and Restoration Area Locations
6. Photos
7. Background Data Sheet 8. Reduced Exhibits 9. Exhibits “A” –“C” January 30, 2013
SHOREBIRD LN
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North Batiquitos Sewer Lift StationForce Main Repair
SITE MAP
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0.026 acUpper CoastalSalt Marsh
0.033 acCoyote BrushScrub
SOURCE: City of Carlsbad (10/2012)
R:\HCR1203\GIS\Impacts.mxd (1/17/2013)
FIGURE 2
Batiquitos Lagoon Emergency Spill ResponseImpact Area and Proposed Mitigation Locations
0.003 ac
0.029 ac
Inset
See Inset
0 35 70
FEET
LEGEND
Impact Areas
Proposed Permanent Impacts
Proposed Coastal Sage Scrub Restoration
Temporary Impacts to be Restored in situ
Revised 01/06
BACKGROUND DATA SHEET
CASE NO: CDP 12-25/HMP 13-01
CASE NAME: NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN REPAIR
APPLICANT: City of Carlsbad
REQUEST AND LOCATION: Request for approval of a post emergency Coastal Development Permit to: 1) install approximately 65 lineal feet of 14-inch sewer force main pipe below grade; 2) install a manifold system including valves and appurtenances above grade; and
3) abandon in place approximately 50 lineal feet of 14-inch sewer force main pipe below grade at
the North Batiquitos Sewer Lift Station (NBSLS), located at 7382 Gabbiano Lane, on the north
side of Batiquitos Lagoon.
LEGAL DESCRIPTION: Lot 1 of Aviara Phase II according to Map No. 12967 accepted for
recordation at the Office of the County Recorder of San Diego County on September 16, 1992,
and also described as Assessor’s Parcel Number 215-801-28-00.
APN: 215-801-2800 Acres: 0.432 Proposed No. of Lots/Units: N/A
GENERAL PLAN AND ZONING
Existing Land Use Designation: Residential Low-Medium Density (RLM)
Proposed Land Use Designation: N/A
Density Allowed: N/A Density Proposed: N/A
Existing Zone: Planned Community (P-C) Proposed Zone: N/A
Surrounding Zoning, General Plan and Land Use:
Zoning General Plan Current Land Use
Site Planned Community (P-C) Residential Low-Medium Density (RLM) Sewer Lift Station
North Planned Community (P-
C)
Residential Medium
Density (RM)
Single-Family
Residences
South Open Space (OS) Open Space (OS) Trail/Lagoon
East Planned Community (P-
C)
Open Space
(OS)/Residential Low-Medium Density (RLM)
Open Space/Single-
Family Residences
West Open Space (OS) Open Space (OS) Open Space/Trail
LOCAL COASTAL PROGRAM
Coastal Zone: Yes No
Local Coastal Program Segment: East Batiquitos Lagoon/Hunt Properties
Within Appeal Jurisdiction: Yes No Coastal Development Permit: Yes No
Revised 01/06
Local Coastal Program Amendment: Yes No
Existing LCP Land Use Designation: Residential Low-Medium Density (RLM)
Proposed LCP Land Use Designation: N/A Existing LCP Zone: Planned Community (P-C) Proposed LCP Zone: N/A
PUBLIC FACILITIES
School District: Carlsbad Water District: Carlsbad Sewer District: Carlsbad
Equivalent Dwelling Units (Sewer Capacity): N/A/
ENVIRONMENTAL IMPACT ASSESSMENT
Categorical Exemption, Section 21065, the issuance of a follow-up regular CDP for the
sewer repair work, as required by the emergency CDP, does not constitute a “project”
within the meaning of CEQA.
Negative Declaration, issued
Certified Environmental Impact Report, dated
Other,
SHEET INDEX
1 TITLE SHEET. LOCATION MAP & VICINITY MAP
2 PLAN VIEW AND DETAILS
3 MECHANICAL PROFILES
SITE LOCATION:
LOT 1 OF CARLSBAD TRACT NO. 89-37
P£R MAP NO. 12967
APN 215-801-28
TOTAL ACREAGE: 0.432 AC.
QUANTITIES
EARTHWORK
TRENCH SPOILS -OFF HAUL 83 C. Y.
TRENCH FILL -IMPORT 83 C. Y.
PAVING
PAVEMENT REPLACEMENT 1,155 S.F.
CONSTRUCTION PLANS
FOR
CDP 12-25
HMP 13-01
NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN REPAIR
.&TtE
CALAVERA
VICINITY MAP
NOT TO SCALE
REFERENCE DRAWINGS
DWG. NO. NAME
181-5 -RANCHO LA COSTA SEWER
781-5A -RANCHO LA COSTA SEWER
306-5 -NORTH BA TIQUITOS FORCE MAIN
306-6 -NORTH BA TIQUITOS PUMP STATION
415-2A -NORTH BA TIQUITOS LIFT STATION IMPROVEMENTS PACKAGE "A'
415-28 -NORTH BATIQUITOS LIFT STATION IMPROVEMENTS PACKAGE ·a·
936-1 -PIOVANA COURT SEGMENT OF NOTH BA TIQUITOS SEWAGE FORCE MAIN
936-2 -NORTH BA TIQUITOS SEWAGE FORCE MAIN AND 72" WAT£R MAIN REPLACEMENT
PROJECT NO.
CITY OF CARLSBAD
CARLSBAD, CALIFORNIA
CITY COUNCIL
MATT HALL -MAYOR
MARK PACKARD-COUNCIL MEMBER
KEITH BLACKBURN-COUNCIL MEMBER
FARRAH DOUGLAS-COUNCIL MEMBER
LORRAINE WOOD-COUNCIL MEMBER
JOHN COATES
ACTING CITY MANAGER
WENDY CHAMBERS
ACTING UTILITIES DIRECTOR
LOCATION MAP
NOT TO SCALE
BATIQUJTOS
LAGOON
"AS BUILT"
RCE __ _ EXP, __ _
REVIEWED BY:
DATE
INSPECTOR DATE
I SH1EET I CITY OF CARLSBAD I SHE3ETS I 1-----+---t--------------+---+---tl---+----1 UTILITIES DEPARTMENT
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NORTH BA TIQUITOS SEWER LIFT STATION FORCE MAIN REPAIR
APPROVED 'MLLIAM E. PLUMMER
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PROJECT NO. 1-~-+==~--------------~-=-+~--t~~-+-~~ DWN BY: ~ DATE INITIAL DATE INITIAL DATE INITIAL CHKD BY: MB
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' ' DETAIL 3
ABANDONED FORCE MAIN SECTION
BELOW GR',4 DE 14" PVC
WITH RESliRAINED JOINTS
I
_j __ , __
SCALE 1" = 5'
I
I
I
90' D./. BEND I I
14" D./. PIPE VE~TICAL
90' D./. BEND I i
14" D./. SPOOL FLG x FLG ' '
14" GATE
2" AVA 45' D./. HORIZ. ---'
RESTRAINED JOINT
4" THICK
14" PLUG VALVE
(RELOCATE EXISTING) ---------1----------t-2,000 PSI CONCRETE PAD _ _/
ABOVE GRADE ASSEMBLY SHALL BE
SUPPORTED WITH ADJUSTABLE PIPE
SUPPORTS AT EACH FLANGED FITTING.
GALVANIZED WITH WEEP HOLES.
90' D./. BEND _ ____J
14" D./. PIPE VERTICAL
90' D./. BEND I 2" AVA I
14"x 8" REDUCEf
I
I
"-~="""" GATE VALVE
WITH BLIND FLANGE
DETAIL 1
NEW 14" DUCTILE IRON PIPE
SECTION
SCALE 1" = 5'
14" GATE VALVE
UNDERGROUND
EMERGENCY
STORAGE
14" x 14" x 14" D./. TEE
8" 90' D./. BEND
8" 90' D./. BEND
WITH BLIND FLANGE
8" GATE VALVE FLG x FLG
14" x 8" REDUCER
rHtYLACt EXIST. FLG x FLG D./.
90' BEND, ORIENT AS SHOWN
14" D./. SPOOL FLG x FLG
14" X 14" X 14" D./. TEE
-'"-" x 8" REDUCER
_ _ _ __fi([_QJ. .BEND
PVCPIPO
90' D./. BEND
8" D./. PIPE VERTICAL 8i 90' D./. BEND
"AS BUILT"
RCE __ _ EXP. DATE
REVIEWED BY:
INSPECTOR DATE
1---+-----+-----------+--+------11----1---11 SH2EET I CITY OF CARLSBAD I SHE3ETS I UTILITIES DEPARTMENT ~--1--1----------------~--t--+---1--1~W~PR~O~VE~M~EN~T~P~~N~FO~R~:==================~====~
DATE INI11AL DATE INI11AL DATE INITIAL
ENGINEER OF WORK REVISION DESCRIPTION OTHER APPROVAL Cl TY APPROVAL
PLAN SHEET AND DETAILS
NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN REPAIR
APPROVED WILLIAM E. PLUMMER
ENGINEERING MANAGER PE 28176 EXPIRES J 31 14DATE
OWN BY: SMFBF PROJECT NO. I DRAWING NO.
CHKD BY: 41S 2C RVWD BY: TS -
P""' A ..,...a ,.... c
.,... D
A . A
~r--rr ~ ~ ~
•
1'------'1 1'-
0
r--~Q~ !'-----~~------~------~ r-
1\ \') ~II~~~ /
/1 lr------d I;--'-_____. j f-nn 1 i _ _r _j 1 ~~Ttl( 7 /,;,,
_I L . OUJ' ~ w -.r
COO~f~P-AD-,~~4-----+--------------+----~----------~~~~----t-----------------------~~~---------------.~~~~~--~-+------~~~~------
CONCRF~ PAD}
a
~ ~
~ ~
I I
I I
I I
l__ _ _,.,c:Y
...._A
SEE SECnON A-A
FOR PROFILE
......
/ ~
0' (®/ \@
~ I~
~--v
~ CONCRF~ PAD\ •
I
SECTION C-C
SCALF 1" = 2'
..._ B
SEE SECnON 8-8
FOR PROFILE
NORTH BATIQUITOS SEWER LIFT STATION
14" FORCE MAIN
MECHANICAL PROFILE
SCALF 1" -2'
'-----
c ;--
[
I I
I I
I I
l. .... c::J
..... c
SEE SECTION C-C
FOR PROFILE
...._ D
SEE SECTION D-D
FOR PROFILE
~
b/ ~ ~ '\.
~ ,_,
~ CONCRF~ PAD\
I
I I
I I
I I
I I
l...-<:::1
SECTION D-D
SCALF 1" = 2'
A
(CONCRHF PAD
SECTION A-A
SCALF 1" = 2'
COP 12-25
HMP 13-01
CONCRF~ PAD\
--~L_--~~~--------------------
SECTION 8-B
SCALF 1" = 2'
"AS BUILT"
RCE ____ _ EXP. __ _ DATE
REVIEWED BY:
INSPECTOR DATE
I SH3EET I CITY OF CARLSBAD I SHE3ETS I l----+---+---------------------------+-----t-----1f---+-----l UTILITIES DEPARTMENT
~--~---+---------------------------+----+-----1f---+---~
~--~---+---------------------------+----+-----1f---+---~ MPROVEMENT PLAN FOR:
MECHANICAL DETAILS
NORTH BATIQUITOS SEWER LIFT STATION FORCE MAIN REPAIR
1----+---+---------------------------+-----t-----1f---+-----l APPROVED WILLIAM f. PLUMMER
~--~---+---------------------------+----+-----1f---+---~ ENGINEERING MANAGER PE 28176 EXPIRES J/J1/14DATE
DWN BY: S[f I PROJECT NO. I DRAWING NO. DATE INITIAL DATE INITIAL CHKD BY M8 f--"'.:.:=......L::.::.:::.::+-=:.:.::::........t..::.::.:::.=::....J : TS 415-2C
OTHER APPROVAL CITY APPROVAL RVWD BY: -
DATE INITIAL
ENGINEER OF WORK REVISION DESCRIPTION