GWR System and Providing Secondary Effluent for Reuse
GWR System and Providing Secondary Effluent for Reuse
GWR System and Providing Secondary Effluent for Reuse
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www.gwrsystem.com<br />
ORANGE COUNTY<br />
SANITATION DISTRICT<br />
Gap Assessment<br />
GROUNDWATER<br />
REPLENISHMENT SYSTEM
www.gwrsystem.com<br />
A project jointly sponsored by:<br />
Orange County<br />
Water District (OCWD)<br />
Orange County<br />
Sanitation District (OCSD)
History of Water Reclamation<br />
Partnership<br />
1975 – Water Factory 21<br />
1992 – Green Acres Project<br />
1995 – Planning <strong>for</strong> <strong>GWR</strong> <strong>System</strong><br />
2002 – Joint Exercise of Powers Agreement<br />
2004 – Initial microfiltration facility (5 mgd)<br />
replaced original Water Factory 21<br />
2008 – <strong>GWR</strong> <strong>System</strong> Operational
OCSD Service Area<br />
471 square miles<br />
243 million gallons per day<br />
2.5 million population<br />
21 cities, 3 special districts<br />
16 pumping facilities<br />
Los Angeles<br />
Fountain Valley<br />
San Diego<br />
Orange County,<br />
Cali<strong>for</strong>nia
Orange County Sanitation<br />
District’s Facilities in Cali<strong>for</strong>nia<br />
water<br />
district<br />
Reclamation Plant No. 1<br />
Fountain Valley<br />
Treatment Plant No. 2<br />
Huntington Beach
<strong>GWR</strong> <strong>System</strong> Components<br />
Spreading<br />
Basins<br />
Santa Ana<br />
River<br />
Santiago<br />
Creek<br />
Pacific Ocean<br />
Advanced Water<br />
Purification<br />
Facilities<br />
Seawater<br />
Intrusion<br />
Barrier<br />
OCWD<br />
OCSD<br />
Treatment<br />
Plants<br />
Groundwater<br />
Basin<br />
Ocean<br />
Pipeline<br />
N
<strong>GWR</strong> <strong>System</strong> Flow Diagram<br />
OCSD<br />
Enhanced<br />
Source<br />
Control<br />
86 mgd<br />
Microfiltration<br />
70 mgd 70 mgd<br />
Reverse<br />
Osmosis<br />
Ultraviolet<br />
Light<br />
OCSD<br />
Purified<br />
Water<br />
<strong>Secondary</strong><br />
Treated<br />
<strong>Effluent</strong><br />
Backwash<br />
Brine<br />
(hydrogen<br />
peroxide<br />
added)<br />
natural<br />
soil<br />
filtration<br />
OCSD Plant 1<br />
OCSD Outfall
GARFIELD<br />
ELLIS<br />
To Plant 2<br />
Interagency Flow Schematic<br />
Microfiltration<br />
WARD<br />
Primary<br />
Clarifiers<br />
Reverse<br />
Osmosis<br />
UV Light<br />
to Barrier<br />
Product Water<br />
Pump Station<br />
Screening<br />
Facility<br />
<strong>Secondary</strong><br />
Clarifiers<br />
Trickling<br />
Filters<br />
Primary <strong>Effluent</strong><br />
Distribution Box
Agreement Obligations to<br />
OCWD (November, 2002)<br />
Provide secondary effluent meeting quality &<br />
flow requirements<br />
Provide an Industrial pretreatment & pollution<br />
source control program<br />
Accept waste streams from OCWD<br />
Sewage<br />
Primary<br />
Treatment<br />
OCSD<br />
<strong>Secondary</strong><br />
Treatment<br />
OCWD<br />
Advanced Water<br />
Treatment<br />
<strong>Reuse</strong>
Source Control Program<br />
Add drinking water st<strong>and</strong>ards<br />
Support beneficial biosolids <strong>and</strong> water reuse<br />
Develop inventory of industrial chemicals<br />
Exp<strong>and</strong> proactive <strong>and</strong> preventive program<br />
Exp<strong>and</strong> permitting <strong>and</strong> monitoring<br />
en<strong>for</strong>cement<br />
Focus source investigation to new targeted<br />
pollutants
OCSD Construction<br />
Improvement Projects<br />
New <strong>and</strong> modified to support <strong>GWR</strong> <strong>System</strong><br />
Modified 80 mgd activated sludge plant<br />
Constructed 30 mgd trickling filters<br />
New 60 mgd lift station under construction<br />
Facilities <strong>for</strong> full secondary treatment under<br />
construction<br />
Current rate of construction - $1 million/day<br />
mgd – million gallons per day
Operations<br />
Flow Management<br />
<br />
<br />
<br />
Dry & Wet Weather<br />
<strong>GWR</strong> <strong>System</strong> feed flow<br />
requirements<br />
Accept reject streams<br />
Ocean outfall interim<br />
compliance <strong>for</strong> BOD<br />
<strong>and</strong> TSS until 2012<br />
Water Quality Based <strong>Effluent</strong> Limitations
Laboratory Support<br />
Provides upstream<br />
monitoring <strong>for</strong><br />
contaminants of concern<br />
<strong>for</strong> drinking water<br />
Samples waste streams<br />
to support operation’s<br />
process control <strong>and</strong><br />
discharge compliance
Purpose of Assessment<br />
Determine strengths of current operations<br />
Determine opportunities <strong>for</strong> improvement<br />
Decipher areas of the Agreement that require<br />
mitigation
Assessment Process<br />
Hired KEMA due to OCSD’s Biosolids<br />
Environmental Management <strong>System</strong>s<br />
audit experience<br />
KEMA Met with senior management to<br />
clarify expectations<br />
Used ISO 9001:2000 as a guide -<br />
Management <strong>System</strong>s audit (not compliance)<br />
OCSD project manager appointed
Assessment Process<br />
Emphases was on process, systems <strong>and</strong><br />
mechanisms<br />
One KEMA contact person implemented the<br />
details of the assessment<br />
In<strong>for</strong>mal process. (A <strong>for</strong>mal checklist not used)<br />
Reviewed procedures, drawings, records, <strong>and</strong><br />
log books<br />
Per<strong>for</strong>med walk-thru of sites
Interviews<br />
KEMA interviewed many functions <strong>and</strong><br />
employees, on multiple shifts <strong>and</strong> weekends.<br />
OCSD staff set up the schedule.<br />
Interviews were approximately 1-2 hours.<br />
The interview process took five days.<br />
OCSD staff accompanied KEMA at all times
Major <strong>System</strong>s Assessed<br />
Roles <strong>and</strong> responsibilities<br />
Corrective <strong>and</strong> preventive action<br />
Internal auditing<br />
<strong>System</strong>s mapping<br />
Preventive maintenance<br />
Training<br />
Communications
Findings<br />
Strengths:<br />
Source Control is proactive <strong>and</strong> uses systematic<br />
planning tools.<br />
The Mechanical Maintenance Division’s<br />
predictive maintenance program (2008 award<br />
by Uptime Magazine)<br />
The required meetings between agencies are<br />
being held.
Findings<br />
Strengths:<br />
OCSD <strong>and</strong> OCWD have a day to day strong<br />
relationship.<br />
Operations personnel have been able to<br />
respond quickly to keep OCSD within the<br />
regulatory limits.<br />
There is continuous communication between<br />
operators from both agencies.
Findings<br />
Opportunities <strong>for</strong> Improvement:<br />
Documentation<br />
Training<br />
Near miss documentation<br />
Internal Auditing<br />
Project Management<br />
Roles <strong>and</strong> Responsibilities<br />
<strong>System</strong>s Mapping
Closed Loop & Corrective<br />
Action<br />
Documentation<br />
Training<br />
Near miss documentation<br />
Internal Auditing<br />
Project Management<br />
Roles <strong>and</strong> Responsibilities<br />
<strong>System</strong>s Mapping
Conclusion<br />
OCSD is meeting Agreement Obligations<br />
<strong>GWR</strong> <strong>System</strong> is operating as intended <strong>and</strong><br />
required.<br />
<strong>GWR</strong> <strong>System</strong> is meeting regulatory<br />
obligations.<br />
Assessment identified strengths <strong>and</strong> gaps.<br />
Plan was developed to close gaps.<br />
Plan assures mode of continual<br />
improvement, corrective action <strong>and</strong> proper<br />
documentation
Questions?<br />
Michele Farmer<br />
OCSD <strong>GWR</strong> <strong>System</strong><br />
Audit<br />
(714) 593-7132<br />
Wendy Seven<strong>and</strong>t<br />
OCSD <strong>GWR</strong> <strong>System</strong><br />
Project Management<br />
(714) 593-7392<br />
Bob Auerbach<br />
KEMA Quality<br />
(310) 454-5694<br />
www.gwrsystem.com
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