1. Groundwater Remediation Status
Board of Directors
May 24, 2017

2. North Basin RI/FS Current Activities:
Scope developed in collaboration with USEPA
Study area limited in two ways:
Specific to offsite groundwater contamination
Specific to interim remedy selection
Field studies initially including installation of 14 MWs in 8 locations
Currently out to bid – bids due on June 22
Estimated start in August – 6 months to complete

3. Prop 1 Planning Grants
RI/FS studies for both the NB and SB projects received preliminary approved at the $1 million cap ($2 million total)
OCWD Staff informed by the SWRCB that the planning grant cap is negotiable
Based on the availability of additional grant funds the RWQCB has requested that the OCWD consider expanding the scope of the NB RI/FS

4. North Basin RI/FS Proposed 6 Additional Wells: 4 from EPA:
Additional definition of Northern boundary
Wells located upgradient of Fullerton’s La Palma wells
2 from RWQCB:
Additional data gap wells in eastern upgradient area of the plume. High levels of VOCs detected in one-time groundwater grab samples near former Crucible Material site (closed by DTSC without any groundwater investigation)

5. RI/FS Monitoring Well Locations

6. Financial Considerations
Scope
Project Cost
Grant Funding
Net Cost
Original EPA SOW
$ 2,800,000
capped $ 1,000,000
$ 1,800,000
Revised EPA SOW
$ 3,500,000
$ 2,500,000
Revised EPA & RWQCB
$ 3,800,000
Uncapped - 50% $ 1,900,000
$ 1,900,000

7. EW-1 Status Complete at this time: To be completed:
1. Well drilled and constructed in previous project
2. Wellhead appearances and piping design complete
3. Wellhead underground vault constructed
4. Underground conduits and pipelines installed and tested
5. Both manholes constructed
6. Equipment pad constructed
To be completed:
7. Well redevelopment & sampling
8. Well equipping (pump column, meters, valves)
9. Electrical and communications
10.Startup training & testing
System Operational: - Late 2017

8. EW-1 Site, Fullerton (State College north of Orangethorpe)

9. Recent Monthly Spending (NB, SB, & MTBE)

10. Questions?