HomeMy WebLinkAboutFINAL PH Sewer County PPT Presentation 07-19-2023pptxBoard of County Commissioners
Public Works Update
Port Hadlock Wastewater System
July 19, 2023
6:00 p.m.
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PHASE I SEWER SERVICE AREA
PHASE I SEWER ZONING
Maps show Phase I sewer service area
Map (right) showing zoning AFTER sewer is available (installed)
Roughly as shown in the Sewer Facility Plan going back as far as 2007
Captures the Commercial zoning and some medium/high density residential
Roughly 48,000 gallons per day used (avg) – not all of it wastewater (irrigation, etc.)
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County owned/operated, including Control Panel
1. Discuss the different elements of the sewer
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Wastewater Treatment Plant
Manufactured by Ovivo, USA
Membrane Bioreactor (MBR)
Same treatment type as Port Gamble
24,000 gallons per day (startup)
72,000 gpd capacity and expandable
Produces Class A reclaimed water
Rapid infiltration south of Lopeman Road
Biosolids to Port Townsend
Ovivo USA pre-manufactured wastewater treatment plant. Comes on a truck.
State of the art membrane bioreactor with UV disinfection.
Class A reclaimed water (almost drinking water quality)
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Cl. A Reclaimed Water Infiltration Site
1.5 acre “pond”
Rapid rate infiltration
24,000 gpd spread over 1.5 acres = ½ inch deep
20,000 gallon pool
Not a traditional “sewer pond”.
It is a rapid rate infiltration site. Will supplement groundwater in area and under Chimacum Creek
We’re not talking a lot of water here folks.
Pharmaceuticals and chemicals of concern. Study showed a person would have to work in a field irrigated with reclaimed water for 28,000 years to be exposed to the equivalent of on tablet
of ibuprofen.
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https://youtu.be/0FEtmfchCxc
Video #1
Video #2
https://eone.com/sewer-systems/municipalities?keyword_session_id=vt~adwords%7Ckt~residential%20sewer%20grinder%20pump%7Cmt~b%7Cta~656837677102&_vsrefdom=wordstream&gclid=EAIaIQobChMIsLOq16SWgAMV-SWtB
h1DXQfYEAAYAiAAEgLB-_D_BwE
Video #1 “How Does the E/One Pressure Sewer System Work?”
Video #2 “Featured Project – Bloomingdale GA”
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CONTROL PANEL
(240V electricity)
Why a low pressure sewer system?
Cost. A traditional gravity system, while simpler, would not be happening.
Deep excavations on the highway and properties. Groundwater.
Difficult to “retrofit” an existing community with gravity, especially with many building drains on back side of structures.
Remember, virtually no grants forthcoming from 2008 through 2021. Had to find a way to reduce capital costs.
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Electrical Panels
Grinder pumps need dedicated circuit
240V
30A (for residential)
Some are going to require work
This will be a property owner responsibility
Property owner responsible for electricity cost. Estimated at only a few $dollars/month
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See notes on slide.
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Multiple projects overlapping in the Phase I Sewer Area
1. Procure Membrane Bioreactor equipment – Ovivo, USA (complete)
2. Site preparation and earthwork/utilities/pond – underway now
3. Wastewater Treatment Plant construction – bid late this year; construct 2024/25
4. Low pressure sewer collection system in streets – bid late this year; construct 2024/25
5. On-site sewer connections for high water users – bid early next year; construct 2024/25
6. Plant start up – mid/late 2025
7. Additional on-site sewer connections in Phase I area – bid 2025; construct 2025/26/27
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See notes on slides
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Don’t need to go into a lot of detail.
Main point, we are getting a lot of help from State/Feds to keep costs to users down
BoCC and legislative delegation had a large role in helping secure funding. Steve Tharinger.
It’s a lot of work to use grants.
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Who is required to connect to the sewer?
Sewer ordinance still under development.
Commercial (non-residential) over 4,000 gallons per month.
Multi-family housing (apartments)
All new development/expansions after sewer is available.
When a septic system fails
No new or expanded septic systems will be allowed in the sewer service area.
Optional – single family and duplex residential. After priority water users hooked up for plant startup and depending on how far available grant funding goes.
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How much will it cost to connect to the sewer?
Initial connections will be made using State/Federal grants that the County has obtained
The property owner will only be responsible for providing 240V electric service. County is investigating whether there could be a reimbursement program to help with this.
Since the wastewater plant needs a certain flow at startup (around 24,000 gpd), priority will be mandatory connections that generate the most flow. Probably about 25 to 30 properties.
Grant funding that has been secured should be adequate to cover all mandatory connections and some non-mandatory connections.
Non-mandatory connections will be prioritized according to flow, how accessible the connection is, etc. Still too early in the project to make promises.
In the future (new construction), cost to connect to the sewer will be at property owner expense. Costs will vary with complexity – just like septic systems.
New residential construction estimate: $20,000 to $25,000 for a grinder pump purchase and installation, similar to a new septic system. (Grinder pump purchase price is $8,000).
Bottom line: at first it will cost nothing because we have grant funds to connect existing high-use customers.
When grant funds are exhausted, figure $20,000 to $25,000 for a single family connection
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How much will sewer service cost per month?
Sewer ordinance still under development
$80 per month base fee (flat fee for residential)
Commercial will also pay 2.5 cents per gallon for water use above 4,000 gallons/month
Discounts for low income
Like most sewers, sewer bill is based on your water use bill (for commercial/multi-family). Sewer is not metered.
Electricity – a few $dollars/month (typical residential)
County is subsidizing to keep rates low since initially there will not be enough customers to pay for all of the Operations/Maintenance costs.
See notes on slides
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See notes on slides
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Who takes care of the grinder pumps?
The County, or likely the PUD (by agreement)
Normal wear and tear covered
Abuse by property owner will be charged (rags, rocks, etc.)
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What does sewer allow me to do with my property?
At the least, you can use the area occupied by your drain field and reserve area
Zoning changes
Low density residential becomes 4 to 6 per dwelling units per acre
High density residential becomes 13 to 18 dwelling units per acre
Advantages for commercial property use also
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How can I get more information?
County staff has already met one-on-one with many of the property owners in the Phase I service area boundary
If you are in the Phase I boundary, you may contact staff at Public Works to set up a meeting.
Jefferson County Department of Public Works
(360) 385-9160
porthadlocksewer@co.jefferson.wa.us
Samantha Harper, Wastewater Project Manager
https://www.co.jefferson.wa.us/1544/Newsletters-and-Notifications
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