sewer smart summit 2006 abag’s sewer back up prevention program presented by e.j. shalaby district...
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Sewer Smart Summit 2006Sewer Smart Summit 2006ABAG’s Sewer Back up Prevention ProgramABAG’s Sewer Back up Prevention Program
Presented byE.J. ShalabyDistrict Manager, West County Wastewater DistrictMay 17, 2006
West County Wastewater District West County Wastewater District BackgroundBackground
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 West County Wastewater District Capacity Assessment StudyCapacity 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 FactsBuilding 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 DefectsBuilding Sewer Defects
Addressing Building Sewer DefectsAddressing 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 ProgramBuilding 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
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 ProcessBSRGP Process
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 ProcessBSRGP Process
Backwater Overflow Device (BOD) Backwater Overflow Device (BOD) OrdinanceOrdinance
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 OrdinanceFuture - Lateral Inspection Ordinance
Required on All Sale or Transfer of Property
Realtors have shown Support of Ordinance Implement with Realtors as Partners
Success/BenefitsSuccess/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
Questions ?
Contact Information:
West County Wastewater District
2910 Hilltop Drive
Richmond, California 94806
510-222-6700
www.wcwd.org