Attachment_B-_Well_Information.pdf
PDF 6 MB Posted
- Attached to
- Monitoring Well Sampling Services
- Solicitation number
- RFP-SM-0113
- Issued by
- Los Angeles County, California
About this file
This document is an Attachment B - Well Information for the West Basin Municipal Water District's Monitoring Well Sampling Services Request for Proposal (RFP). The attachment provides detailed information about 11 monitoring wells located across multiple cities in the Los Angeles County area, including El Segundo, Redondo Beach, Torrance, Manhattan Beach, and Hermosa Beach. These wells are part of the West Coast Basin Barrier Project and are used for water quality monitoring.
The well information includes specific details for each site, such as well ID, location, screened intervals, depth to water, diameter, casing purge volume, discharge volume, purge time, sampling type, and unique location-specific requirements. Notable variations include different purge methods (standard 2-casing purge and low flow), power supply conditions, discharge options (vegetation or haul away), and traffic control needs. Some wells require specific permits from Los Angeles County Flood Control District, city traffic permits, and right-of-way permissions. The wells are situated in diverse urban settings, including residential areas, parkways, sidewalks, and street lanes, each with unique access and safety considerations.
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Text version
Attachment B - Well Information
West Basin Municipal Water District
Monitoring Well Sampling Services RFP
Well ID ->> Well 1318N Well 14B Well 17B Well 17C Well 690A Well 703G Well 735A Well 9B Well WB1 380' Well WB1 490' Well WB1 640' Flood Control District ID 1318N 712K 725BP 725BQ 690A 703G Well 735A 700H
LACDPW Project Number 4Z26 7H27 8T10 8T10 5YA 7LN 9A31 6B36
Location
Nash St. & El Segundo Blvd., El Segundo
(LACDPW field yard, behind code-accessed security gate) (100 Nash St. in El
Segundo, CA)
Carnegie Ln. & Goodman Ave., Redondo Beach (residential area)
Del Amo Blvd. and Red Beam Ave., Torrance (on parkway strip at Sunny Glen
Park)
Del Amo Blvd. and Red Beam Ave., Torrance (on parkway strip at
Sunny Glen Park)
Parking area along Valley Dr., across from playground at
Live Oak Park, Manhattan Beach
On sidewalk in front of 1522 Pacific Coast
Hwy., Hermosa Beach (currently a shopping center with Wells Fargo bank)
On parkway strip in front of 20513 Victor St., Torrance (a single family residence)
Parkway strip at 18th St.
and Cedar Ave., Manhattan Beach
North lane of Del Amo Blvd just east of Prospect
Ave., Torrance
North lane of Del Amo Blvd just east of Prospect Ave., Torrance
North lane of Del Amo Blvd just east of Prospect
Ave., Torrance
Location restrictions None Street sweeping Mondays 8-11 am None None
Street sweeping Thursdays 6:30-8 am
Street sweeping Fridays 9-11 am; no stopping 3-
7 pm M-F None Street sweeping
Tuesdays 6-7 am
Lane closure per Torrance and Redondo permits;
closure limited 9:00 am- 3:00 pm M-F
Lane closure per Torrance and Redondo permits;
closure limited 9:00 am- 3:00 pm M-F
Lane closure per Torrance and Redondo permits;
closure limited 9:00 am- 3:00 pm M-F
Location-specific public safety None
Pedestrian safety along sidewalk and vehicular safety in parking lane
Ensure purged water does not create flooding/ nuisance
Ensure purged water does not create flooding/ nuisance
Ensure purged water does not create flooding/ nuisance
Pedestrian safety along sidewalk and vehicular safety in parking lane
Pedestrian safety along sidewalk and vehicular safety in parking lane
Pedestrian safety along sidewalk and vehicular safety in parking lane
Traffic cones, flags, arrow board per MUTCD
Traffic cones, flags, arrow board per MUTCD
Traffic cones, flags, arrow board per MUTCD
Screened Intervals (ft) 85'-155' 58'-73'; 188'-198' 409'-434'; 489'-560' 44'-374' 23'-165' 153'-263' 536'-586' 71'-186' 345'-365' 461'-481' 611'-631' Depth to Water 91 131 98 101 112 87 92 137 126 126 127 Diameter (in) 4 4 4 4 8 4 4 4 4 4 4 1-casing purge volume (gal) * (appx) 120 200 260 370 600 190 400 140 170 for standard purge 240 340
Avg. discharge volume per event (gal) 240 400 520 740 1200 380 800 280 340 for standard purge
5 for low flow 480 680
Purge Time Avg (Min) * 48 80 104 148 240 76 160 56 ~ 40 for low flow 96 136
Pump/Power None supplied None supplied None supplied None supplied None supplied None supplied None supplied None supplied 230 volt pump installed, no power supplied dedicated pump installed, no power supplied dedicated pump installed, no power supplied
Sampling Type Standard 2-casing purge Standard 2-casing purge Standard 2-casing purge
Standard 2-casing purge
Standard 2-casing purge
Standard 2-casing purge Standard 2-casing purge Standard 2-casing purge Low Flow Standard 2-casing purge Standard 2-casing purge
Telemetry - Contact LACDPW? N N N N Y Y N N N N N
Dishcarge to vegetation? N (use LACDPW cleanout) N Y Y Y Y N N N N N
Haul away purge water?
N - Discharge to LACDPW cleanout, located in front of the offices at the DPW field yard. Refer to well map.
Y (insufficient vegetation to discharge on-site)
N (sufficient vegetation to discharge on-site)
N (sufficient vegetation to discharge on-site)
N (sufficient vegetation to discharge on-site)
N (sufficient vegetation to discharge on-site)
Y (insufficient vegetation to discharge on-site)
Y (insufficient vegetation to discharge on-site)
Y (insufficient vegetation to discharge on-site)
Y (insufficient vegetation to discharge on-site)
Y (insufficient vegetation to discharge on-site)
Traffic control required? N Y - Shoulder Closure N N N N (no work in roadway) Y - Shoulder Closure per MUTCD TA-6 Y - Shoulder Closure Y - Lane Closure per
Torrance Standard T1004 Y - Lane Closure per
Torrance Standard T1004 Y - Lane Closure per
Torrance Standard T1004
Preparation (Responsible Party) N
Y - cones & temporary no parking signs plus photos 72 hrs prior
(West Basin)
N N N N Y - cones & temporary no parking signs (West Basin)
Y - cones & temporary no parking signs
(West Basin)
Y - notification to cities (West Basin)
Y - notification to cities (West Basin)
Y - notification to cities (West Basin)
Permits relating to discharge and public safety
LACFCD Encroachment Permit
-Redondo Beach engineering permit
-LACFCD
Encroachment Permit
LACFCD
Encroachment Permit
LACFCD
Encroachment
Permit
LACFCD
Encroachment Permit
LACFCD Encroachment Permit
-Torrance traffic permit -LACFCD Encroachment Permit
-Manhattan Beach ROW permit
-LACFCD
Encroachment Permit
-Torrance traffic permit -Redondo Beach engineering permit
-Torrance traffic permit -Redondo Beach engineering permit
-Torrance traffic permit -Redondo Beach engineering permit
* Purge volume and duration based on 2" pump at 4-5 gpm for standard purges
ATTACHMENT B- Well Information Please review the background information and maps for each well.
Acronyms LACDPW - Los Angeles County Department of Public Works LACFCD - Los Angeles County Flood Control District MUTCD - Manual on Uniform Traffic Control Devices ROW - Right-of-Way
Palos Verdes Estates
Carson
Redondo Beach
Lawndale
Gardena Compton
El Segundo Hawthorne
Inglewood
Hermosa Beach
Manhattan Beach
Lomita
Torrance
Los Angeles
WELL WB1D380
WELL 690A
WELL WB1D490
WELL WB1D640
WELL 9B
WELL 14B
WELL 17B
WELL 17C
WELL 703G
WELL 735A
WELL 1318N
Port of Long Beach, USDA FSA, GeoEye, Maxar, Esri, DeLorme, NaturalVue
Monitoring Well information from Water Quality Compliance Team Barrier Injection Well from Water Replenishment District GIS Data
City Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016
Ocean Basemap from Esri ArcGIS Online
Barrier Injection Well
Monitoring Well
City Boundary
West Basin Service Area
1 0 10.5
Miles
* Well WB1D380, WB1D490, and WB1D640 are triple-nested ** Well 17B and 17C are double-nested
Pacific Ocean
Path: Z:\GIS\2021 Requests\Map\MonitoringWell.aprx
West Coast Basin Barrier Project Monitoring Wells
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Monitoring Well information from Water Quality Compliance Team Barrier Injection Well from Water Replenishment District GIS Data
Building Outline from LARIAC Data 2011 City Boundary from LA County GIS Data 2014
Parcel Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016West Coast Basin Barrier Project. Monitoring Well 1318N - Site Map
Redondo Beach
Lawndale
Gardena
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Inglewood
Hermosa Beach
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Torrance
Los Angeles
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Path: Z:\GIS\2021 Requests\Map\MonitoringWell.aprx
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Building Outline from LARIAC Data 2011 City Boundary from LA County GIS Data 2014
Parcel Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016West Coast Basin Barrier Project. Monitoring Well 9B - Site Map
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Monitoring Well information from Water Quality Compliance Team Barrier Injection Well from Water Replenishment District GIS Data
Building Outline from LARIAC Data 2011 City Boundary from LA County GIS Data 2014
Parcel Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016West Coast Basin Barrier Project. Monitoring Well 14B - Site Map
Redondo Beach
Lawndale
Gardena
El Segundo Hawthorne
Inglewood
Hermosa Beach
Manhattan Beach
Torrance
Los Angeles
Monitoring Well
Barrier Injection Well
Building Outline
Parcel Boundary
100 0 10050
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Inset Location
Path: Z:\GIS\2021 Requests\Map\MonitoringWell.aprx
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Monitoring Well information from Water Quality Compliance Team Barrier Injection Well from Water Replenishment District GIS Data
Building Outline from LARIAC Data 2011 City Boundary from LA County GIS Data 2014
Parcel Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016West Coast Basin Barrier Project. Monitoring Well 703G - Site Map
Redondo Beach
Lawndale
Gardena
El Segundo Hawthorne
Inglewood
Hermosa Beach
Manhattan Beach
Torrance
Los Angeles
Monitoring Well
Barrier Injection Well
Building Outline
Parcel Boundary
100 0 10050
US Feet
1 0 10.5
Miles
Inset Location
Path: Z:\GIS\2021 Requests\Map\MonitoringWell.aprx
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Well WB1d490 Well WB1d640
Well 17B Well 17C
Monitoring Well information from Water Quality Compliance Team Barrier Injection Well from Water Replenishment District GIS Data
Building Outline from LARIAC Data 2011 City Boundary from LA County GIS Data 2014
Parcel Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016West Coast Basin Barrier Project. Monitoring Well WB1D and 17- Site Map
Redondo Beach
Lawndale
Gardena
El Segundo Hawthorne
Inglewood
Hermosa Beach
Manhattan Beach
Torrance
Los Angeles
Monitoring Well
Barrier Injection Well
Building Outline
Parcel Boundary
100 0 10050
US Feet
1 0 10.5
Miles
Inset Location
* Well WB1d380, WB1d490, and WB1d640 are triple-nested
** Well 17B and 17C are double-nested
Path: Z:\GIS\2021 Requests\Map\MonitoringWell.aprx
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Well 735A
Monitoring Well information from Water Quality Compliance Team Barrier Injection Well from Water Replenishment District GIS Data
Building Outline from LARIAC Data 2011 City Boundary from LA County GIS Data 2014
Parcel Boundary from LA County GIS Data 2014 Road Line from TIGER Census 2016
West Coast Basin Barrier Project. Monitoring Well 735A - Site Map
Redondo Beach
Lawndale
Gardena
El Segundo Hawthorne
Inglewood
Hermosa Beach
Manhattan Beach
Torrance
Los Angeles
Monitoring Well
Barrier Injection Well
Building Outline
Parcel Boundary
100 0 10050
US Feet
1 0 10.5
Miles
Inset Location
Path: Z:\GIS\2021 Requests\Map\MonitoringWell.aprx
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Well Info
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