presentation of city council wastewater ... - beaumont, ca

Strength through History & Innovation

City of BeaumontWastewater Treatment Workshop

Workshop Agenda

1. Overview of Beaumont’s Existing Wastewater Treatment Plant

2. Overview of Basin Plan & Compliance Timelines

3. Compliance Options

a) Beaumont Option - Treatment/Salt Management

b) Regionalization Option – YVWD Provides Service

c) Hybrid Option – Beaumont & YVWD Split Services

4. Next Steps

5. Questions & Discussion

Beaumont WWTP Overview – 4 mgd

Headworks

Aeration Basins

Secondary Clarifiers

Tertiary Filters

UV Disinfection

Solids Dewatering

Basin Plan – San Timoteo Management Zone

TaskCompliance

DateStatus

Surface Water Monitoring Program May 30, 2014 Done

R8-2014-0005

Groundwater Monitoring Program Every 3 Years DoneR8-2009-0035

YVWD Desalter and Brine Discharge June 30, 2015 Complete

Beaumont Desalter and Brine Discharge – Plan Submittal Jan. 30, 2015 Complete

Jan. 20, 2015Beaumont Desalter and Brine Discharge – Facilities Complete Jan. 30, 2020 Not Complete

10 year avg. TDS

Beaumont Deliver RW (400 TDS) Dec. 31, 2015 Not Complete10 year avg. TDS

Habitat Maintenance (400 TDS) 2024 Not Complete10 year avg. TDS

Basin Plan – Beaumont Management Zone

TaskCompliance

DateStatus

Surface Water Monitoring Program May 30, 2014 Done

R8-2014-0005

Groundwater Monitoring Program Every 3 Years DoneR8-2005-0066

YVWD Desalter and Brine Discharge June 30, 2015 Complete

Beaumont Desalter and Brine Discharge – Plan Submittal Jan. 30, 2015 Complete

Jan. 20, 2015Beaumont Desalter and Brine Discharge – Facilities Complete Jan. 30, 2020 Not Complete

10 year avg. TDS

Beaumont Deliver RW (330 TDS) Dec. 31, 2015 Not Complete10 year avg. TDS

Habitat Maintenance (330 TDS) 2024 Not Complete10 year avg. TDS

Compliance Options

Beaumont Option

Beaumont Option

Beaumont Option – Current Condition

Beaumont Option – Current Condition

Beaumont Option – Expansion Layout

Beaumont Option – Brine Management

Beaumont Option – Expansion & Upgrade

Facilities to Expand/Upgrade• Headworks • Aeration basin• Secondary clarifiers• Tertiary filtration (Membrane filters)• UV disinfection• Solids dewatering

New Facilities• Solids digestion• Reverse osmosis• Brine disposal

Beaumont Option – Opportunities & Constraints

Opportunities• Control own destiny• Provide recycled water in City and recharge water• Utilize existing assets • Simplest option from a regulatory perspective (compliant with

Basin Plan)

Constraints• Significant upgrades required to maintain compliance• Brine disposal is extremely challenging. YVWD likely not an

option for brine disposal under this scenario.• Land availability around the existing Plant & Cooper’s Creek

habitat.• 1.8 mgd must be delivered to Cooper’s Creek for habitat

conservation

Compliance Options

Regionalization Option

Regionalization Option - Conveyance

YVWD WRF

Beaumont WWTP

Regionalization Option – YVWD WRF

Current Capacity – 8mgdCurrent Demand – 4mgd

Headworks

Primary Treatment

RW Storage, Pumping & Brine Disposal

Secondary Treatment

MF, RO & UV

Solids Digestion & Dewatering

Available Space

Regionalization with YVWD

Opportunities• Capacity available immediately, including desalting and RW• Existing brine disposal facilities (must secure long-term

availability in the IEBL)• Consolidate treatment operations to a single location and lower

O&M costs• Title 22 approval• Available area to expand

Constraints• Requires Basin Plan Amendment• Cooper’s Creek habitat conservation (1.8 mgd delivered to

creek)• Requirement to deliver RW and recharge water to offset

potable demand

Compliance Options

Hybrid Option

Hybrid Approach – Infrastructure Requirements

Upgrade existing Beaumont Plant, including desalting facilities (minimum capacity would be 1.8mgd to maintain habitat in Cooper’s Creek unless an alternate supply is identified)

Build conveyance to connect to YVWD (brine from Beaumont Plant delivered to YVWD for treatment and disposal)

Participate in expansion of YVWD Plant or purchase capacity

Secure long-term capacity in IEBL

Hybrid Approach – Opportunities and Constraints

Opportunities• Utilize existing infrastructure at Beaumont and YVWD Plants• Keep habitat conservation water local• Access to brine disposal through YVWD

Constraints• Requires Basin Plan amendment• Access to YVWD’s Brine Line is uncertain under this scenario• Requires YVWD’s agreement• Could trigger expansion of YVWD Plant (if not then capacity

fees)

Financial Impacts

The cost of these options is unknown at this point, but the implementation of any of the three options will likely be expensive. Impacts will include:

a) Sewer rates

b) Connection fees

Available cash in the Sewer Fund as of February 29th, 2016 equals

$4.97M.

Unaudited Fund Balance as of June 30th, 2015 equals $53.88M

Next Steps

Issue a Request for Proposal (RFP) to evaluate the feasibility and costs of the following three options:

a) Keep Existing Plant – Upgrade/expand the existing Plant, including construction of a desalter and brine disposal facilities.

b) Regionalization with YVWD – Connect to YVWD sewer system and abandon the City’s existing WWTP.

c) Hybrid Approach – Upgrade existing Plant to treat a portion of the flow and deliver a portion of the flow and brine to YVWD for treatment and brine disposal.

Questions & Discussion