Presentation Transcript
Sewer Smart Summit 2006ABAG’s Sewer Back up Prevention Program: Sewer Smart Summit 2006 ABAG’s Sewer Back up Prevention Program Presented by
E.J. Shalaby
District Manager,
West County Wastewater District
May 17, 2006
West County Wastewater District Background: West County Wastewater District Background District Founded in 1921
Currently provide service to 90,000 residents
San Pablo, Pinole, El Sobrante, Tara Hills, East Richmond, Rollingwood, Bayview
235 miles (1.3 mft.) of Gravity Sewer Lines within 17 sq. miles
Wastewater Treatment Facility Capacity 12.5 MGD
Avg. dry weather flow 8.0 MGD
Peak wet weather flow 70.0 MGD
EQ Basin Shaves Peaks, 53 MG Capacity
Approximately 40,000 Building Sewer connections
West County Wastewater District Capacity Assessment Study: West County Wastewater District Capacity Assessment Study Identified 7 Mainline Capacity Concerns Within our Collection System
Potential of $20 million in cost
Increase/Repair Sewer System to Accommodate Flows
Does not Control Flows from Defective Private Laterals
Ongoing CCTV Assessment for Structural Defects
Rating incorporated into CIP
Fully Funded Annual Capital Improvements Program
WCWD Collection System Improvements
Private Building Laterals Excluded from Study
Not under Districts Control
Building Sewer Facts: Building Sewer Facts Building Sewers Privately Owned
Total Building Sewer Footage - 230 miles (1.21 mft.)
Equals total footage of mainline sewers
Building Sewer Make - Up
Generally poor pipe (VCP) material
Illegal or improper connections and faulty joints
High source of Inflow/Infiltration (I/I)
Less than 50% of Building Sewers have Backwater Overflow Device (BOD)
Building Sewer Defects: Building Sewer Defects
Addressing Building Sewer Defects: Addressing Building Sewer Defects
Building Sewer Replacement Grant Program
Homeowner Incentive to Replace Defective Laterals
Up to $2,000 for Lateral Replacement
Address 230 Miles of Private Sewer System
Return on Invest for the District
Reduce sources of I/I
Retain Capacity of Existing System
Building Sewer Replacement Grant Program: Building Sewer Replacement Grant Program “The gift of public funds, such as any expenditure which benefits an individual or small class of individuals only, with no benefit to all of the residents of the political entity is prohibited”
(CA State Constitution, Art. 16, Sec. G)
I/I reduction benefits All Districts Residents
Retains Maximum Capacity of Sewer System
July 1, 2004 Board of Directors approved $300,000 annually (Capital Reserve Fund)
Program in effect until Canceled by the Board
Slide9: BSRGP application process
TV or air test
District (TV only) v. Independent Contractor
One Contractor quote
WCWD permit required
WCWD inspection required
BOD installation mandatory
Proof of payment
Reimbursement 4-6 weeks BSRGP Process
Slide10: Reimbursement up to maximum amount or 50% of actual cost whichever is less
Entire replacement up to $2,000 max.
Partial replacement/repair up to $1,000 max.
Typical cost of entire building sewer replacement $4,500-$8,000
Home owner can perform work
provide receipts of materials
labor not covered
BSRGP Process
Backwater Overflow Device (BOD) Ordinance: Backwater Overflow Device (BOD) Ordinance Ordinance Passed on February 2006
Implementation April 1, 2006
Required on All Sale or Transfer of Property
Realtors in Support of Ordinance
Future - Lateral Inspection Ordinance: Future - Lateral Inspection Ordinance Required on All Sale or Transfer of Property
Realtors have shown Support of Ordinance
Implement with Realtors as Partners
Success/Benefits: Success/Benefits Since July 1, 2004
200 approvals
$400,000 WCWD spent to date
$1.5 Million in Lateral Repairs
Expenditure to reduce I/I in building sewer is money well spent to retain/increase system capacity
Improve Reliability to Homeowner – Good PR
BOD installation
Reduces backflows into homes - $25,000/back-up
Reduces damage to irreplaceable items
Limit liability for District
Closing Thought: Closing Thought “So what do we do? Anything. Something. So long as we just don't sit there. If we screw it up, start over. Try something else. If we wait until we've satisfied all the uncertainties, it may be too late.”
Lee Iacocca
(1924-, American businessman, former CEO of Chrysler)
Questions ?: Questions ? Contact Information:
West County Wastewater District
2910 Hilltop Drive
Richmond, California 94806
510-222-6700
www.wcwd.org