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View Fact Sheet

Lewiston Valley Drinking Water Intertie Pipeline

Back to all Projects
Proposal
Planning/Design
Implementation
Post-Implementation
Completed

Contents

Project Overview

Basics

CLEAN AND ABUNDANT WATER FOR HUMAN COMMUNITIES
Improve Drinking Water Quality and Water Related Infrastructure to Protect Public Health
Lewiston Valley Drinking Water Intertie Pipeline

  • Address Climate Change and Extreme Event Effects, Impacts and Vulnerabilities
  • Conserve and Restore Salmonid Habitats and Ecosystems
  • Conserve, Enhance and Restore Watersheds and Ecosystems that Support Biological Diversity
  • Ensure that Disadvantaged and Underrepresented Communities Benefit from Initiatives
  • Ensure Water Supply Reliability and Quality
  • Respect Local Autonomy and Local Knowledge in NCRP Planning and Implementation

NCRP IRWM Prop 84 2015 (DWR)
Completed
The Lewiston Valley Water Intertie Project (Project) connects the Lewiston Community Services District (LCSD) water system to the Lewiston Park Mutual Water Company (LPMWC) water system via a 10-inch-diameter ductile iron pipe with a flow metering and valve station and two fire hydrants along Trinity Dam Blvd.

2013
2016
2017
11/26/2023

Project Attributes

General Information

Project Description Narrative (1,000 character limit)
This project will join two drinking water systems, operated by Lewiston Park Mutual Water Company (LPMWC) and Lewiston Community Services District (LCSD), by installing approximately 3,585 of intertie pipeline to conserve approximately 1.33 acre-feet of water per year and increase water supply reliability. Design improvements to the existing LCSD water treatment plant SCADA system to allow control of the LPMWC water system and the LCSD water system as one combined system. Improvements will conserve water by eliminating overflows of the LPMWC storage tank which are a common occurrence due to failing control system equipment.
Solutions
Capacity - Year-round Local Capacity, Climate Action - Adaptation, Community Health and Safety - Community Emergency Planning, Community Health and Safety - Community Infrastructure, Ecosystem Conservation and Restoration - Water

Spatial Information

Tribal Region
None
Project Size (Acres)
None

Location

To zoom, hold down Shift and drag a rectangle.

  • Not Tribally owned land as identified by federal BIA map layer

  • Trinity

  • Severely Disadvantaged Community

  • Deadwood Creek-Trinity River (180102110703)

  • Trinity (18010211)

Organizations

Contract Manager
  • County of Humboldt
Funder
  • California Department of Water Resources
Partners
  • California State Water Resources Control Board
  • Lewiston Community Services District
Project Sponsor
  • Lewiston Park Mutual Water Company
Local and/or Political Support Lewiston Community Services District, California Rural Water Association, Rural Community Assistance Corporation, SWRCB

Contacts

Kate Reza - North Coast Resource Partnership (NCRP) (kreza@northcoastresourcepartnership.org)

Project Benefit Performance Measures

Expected Project Benefit Performance Measures

Avoided Costs Cost category: Other $1,600,000.00
Avoided Costs Cost category: Injury and/ or property damage $100,000.00
Community Health and Safety - # of projects Project type: Drinking water supply/ quality protection/ improvements 1 count
Environmental justice and social equity - # of projects Activity focus: Infrastructure improvement 1 count
Firefighting capacity/infrastructure improved - # of projects 1 count
Jobs created or retained (FTE) 3
Special status species protection - # of projects 1 count
Water supply improved - estimated increased instream flow (acre-feet) 1.33 acre-ft
Water supply improved - households impacted 200

Reported Project Benefit Performance Measures

Avoided Costs
Cost category Total 2017 2016 Units
Injury and/ or property damage $100,000 $100,000 N/A
Other $1,600,000 $1,600,000 N/A
Total $1,700,000 $1,700,000 $0

Community Health and Safety - # of projects
Project type Total 2017 2016 Units
Drinking water supply/ quality protection/ improvements 1 1 N/A count
Total 1 1 0 count

Environmental justice and social equity - # of projects
Activity focus Total 2017 2016 Units
Infrastructure improvement 1 1 N/A count
Total 1 1 0 count

Firefighting capacity/infrastructure improved - # of projects
Total 2017 2016 Units
1 1 N/A count
Total 1 1 0 count

Jobs created or retained (FTE)
Total 2017 2016 Units
3 1.5 1.5 number
Total 3 1.5 1.5 number

Special status species protection
Protection status Total 2017 2016 Units
Federal endangered/ threatened fish 1 1 N/A count

Special status species protection - # of projects
Total 2017 2016 Units
1 1 N/A count
Total 1 1 0 count

Water supply improved - estimated increased instream flow (acre-feet)
Total 2017 2016 Units
1.33 1.33 N/A acre-ft
Total 1.33 1.33 0 acre-ft

Water supply improved - households impacted
Total 2017 2016 Units
160 160 N/A number
Total 160 160 0 number

Financials

Budget

$558,000.00
$558,000.00
$0.00
$0.00
Total
IRWM Prop 84 2015 (DWR) (Inactive) $558,000.00 $0.00 $558,000.00
Total $558,000.00 $0.00 $558,000.00
Comment: None provided

Reported Expenditures

2013 2014 2015 2016 2017 Total
IRWM Prop 84 2015 (DWR) (Inactive) $0.00 $0.00 $0.00 $0.00 $558,000.00 $558,000.00
Grand Total $0.00 $0.00 $0.00 $0.00 $558,000.00 $558,000.00

Note: None provided

Project Types

Project Types

This project will enable both communities to be better prepared for fighting fires; the pipeline will enable the community with need to draw from the other community's supply.
The project improves water supply infrastructure for the disadvantaged community of Lewiston.
The intertie will allow Lewiston MWC to avoid withdrawals during the summer months, when instream flows are limited. This will enhance instream habitat for salmonids.
This project enhances water supply reliability for a disadvantaged community, enhancing resiliency to climate change. It also provides more water supply reliability to both communities to fight fires.

Project Details

Attachments

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No attachments

No attachments

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No attachments

Notes

No Notes entered.

External Links

No External Links entered.

Photos

Photos

  •  

    Installed Flow Meter
(Timing: During) (~789 KB)
Credit: Lewiston Community Services District

    Installed Flow Meter
    (Timing: During) (~789 KB)
  •  

    Installed Metering Vault
(Timing: During) (~976 KB)
Credit: Lewiston Community Services District

    Installed Metering Vault
    (Timing: During) (~976 KB)
  •  

    LCSD Water System Tie-In
(Timing: During) (~701 KB)
Credit: Lewiston Community Services District

    LCSD Water System Tie-In
    (Timing: During) (~701 KB)
  •  

    Piping Installation Near Old Lewiston Road
(Timing: During) (~848 KB)
Credit: Lewiston Community Services District

    Piping Installation Near Old Lewiston Road
    (Timing: During) (~848 KB)

 

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