4.5 MG Water Storage Tank Construction
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Project Overview
Basics
4.5 MG Water Storage Tank Construction
- Address Climate Change and Extreme Event Effects, Impacts and Vulnerabilities
- Ensure that Disadvantaged and Underrepresented Communities Benefit from Initiatives
- Improve Drinking Water Quality and Water Related Infrastructure to Protect Public Health
- Respect Local Autonomy and Local Knowledge in NCRP Planning and Implementation
NCRP IRWM Prop 1 Round 2 (DWR)
Implementation
Project is construction of 4.5MG water tank to help ensure continued water service to the communities of McKinleyville & Arcata. The watermain from HBMWD to MCSD passes under the Mad River, is over 50-years old, & is vulnerable to an earthquake or flood. A grant from the NCRP would leverage $7,748,857 in Hazard Mitigation Grant funding & $3,073,812 in MCSD matching funding, to cover the est. $2.5M in increased costs associated with inflation, and allow for completion of this critical Project.
2021
2023
4/17/2025
Project Attributes
General Information
Project Description Narrative (1,000 character limit)
Project will mitigate loss of water service and associated loss of wastewater & fire protection services for the McKinleyville CSD (MCSD) and the City of Arcata. There is a high potential for failure of the existing water supply pipe during an earthquake or flood event. A failure of this line would result in loss of water services to MCSD for several days or months depending on the severity of the earthquake and location of the damage. Project will consist of the construction of a 4.5-million gallon (MG) prestressed concrete storage tank on MCSD land. This will provide a key component for the ability of MCSD (& City of Arcata) water systems to continue to function after a large seismic or flood event. MCSD currently has two days of storage in the 2 existing 1MG & 2, 1.5-MG tanks if the connection to HBMWD fails. This is less than half of the min of 5 days recommended to help ensure continued water service.
Solutions
Capacity - Year-round Local Capacity, Climate Action - Adaptation, Community Health and Safety - Community Infrastructure
Spatial Information
Tribal Region
None
Project Size (Acres)
None
Location
Organizations
Contacts
No contacts set for this project.
Project Benefit Performance Measures
Expected Project Benefit Performance Measures
| Avoided Costs | Cost category: Emergency Repairs and service disruptions | $13,404,361.00 |
| 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 |
| Water supply - infrastructure improvements | Project type: Increased storage | 13.81 acre-ft |
| Water supply improved - households impacted | 6,467 |
Reported Project Benefit Performance Measures
No annual Project Benefit Performance Measure accomplishments entered for this Project.
Financials
Budget
| Comment: | Updated to reflect Prop 1 Round 2 Funding award |
|---|
Reported Expenditures
| 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Total | |
|---|---|---|---|---|---|---|---|
| IRWM Proposition 1 Round 2 (DWR) | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Matching Funds (Matching Funds) | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Grand Total | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Note: | None provided |
|---|
Project Types
Project Types
Loss of water service to either MCSD or the City of Arcata has a dramatic impact to the entities fire protection services. The additional storage tank, utilized with the intertie, will help ensure both entities firefighting ability following a natural disaster and will help ensure regional emergency resilience.
The project improves water supply infrastructure in a disadvantaged part of the North Coast region.
The proposed project contributes to regional self-reliance by leveraging an existing intertie between MCSD and the City of Arcata. The proposed tank can provide extra days of supply if the connection to HBMWD is lost, which can be extended indefinitely if the intertie is used to feed water back and forth between the entities to refill their respective storage. This also helps to ensure that the regional water system supplied by HBMWD has additional flexibility to provide water to the other member agencies in the event a large local natural disaster.
Project Details
Attachments
Project Application
- Uploaded On
- 2/10/2023
- File Type
- Description
Certification of Authority
- Uploaded On
- 2/10/2023
- File Type
- Description
No attachments
Technical and Supporting Documents
- Uploaded On
- 2/10/2023
- File Type
- Description
No attachments
Notes
No Notes entered.
External Links
No External Links entered.
Photos
Photos
No Photos available.