AGENDA REGULAR MEETING BOARD OF DIRECTORS · 5/1/2019 · the Consent Calendar. While members of...

AGENDA REGULAR MEETING BOARD OF DIRECTORS

ORANGE COUNTY WATER DISTRICT 18700 Ward Street, Fountain Valley, CA (714) 378-3200

Wednesday, May 1, 2019 – 5:30 p.m.

Teleconference Site: 300 No. Flower St., Room 788, Santa Ana, CA

* Members of the public may attend and participate at both locations.

PLEDGE OF ALLEGIANCE

ROLL CALL

1. ORANGE COUNTY SCIENCE & ENGINEERING FAIR STUDENT WINNERS OF OCWDSPECIAL AWARDS

● EMPLOYEE OF THE QUARTER AWARD TO ERNEST NUNEZ, ENVIRONMENTALSPECIALIST - DATA ANALYST

ITEMS RECEIVED TOO LATE TO BE AGENDIZED

RECOMMENDATION: Adopt resolution determining need to take immediate action on item(s) and that the need for action came to the attention of the District subsequent to the posting of the Agenda (requires two-thirds vote of the Board members present, or, if less than two-thirds of the members are present, a unanimous vote of those members present.)

VISITOR PARTICIPATION

Time has been reserved at this point in the agenda for persons wishing to comment for up to three minutes to the Board of Directors on any item that is not listed on the agenda, but within the subject matter jurisdiction of the District. By law, the Board of Directors is prohibited from taking action on such public comments. As appropriate, matters raised in these public comments will be referred to District staff or placed on the agenda of an upcoming Board meeting.

At this time, members of the public may also offer public comment for up to three minutes on any item on the Consent Calendar. While members of the public may not remove an item from the Consent Calendar for separate discussion, a Director may do so at the request of a member of the public.

CONSENT CALENDAR (ITEMS NO. 2 - 4)

All matters on the Consent Calendar are to be approved by one motion, without separate discussion on these items, unless a Board member or District staff request that specific items be removed from the Consent Calendar for separate consideration.

2. APPROVAL OF CASH DISBURSEMENTS

RECOMMENDATION: Ratify/authorize payment of bills

3. APPROVAL OF MINUTES OF BOARD OF DIRECTORS MEETINGS HELD APRIL 3, 2019

RECOMMENDATION: Approve minutes as presented

2

4. EXTENSION OF CALIFORNIA DEPARTMENT OF TOXIC SUBSTANCES CONTROL (DTSC) OVERSIGHT AGREEMENT - NORTH BASIN

RECOMMENDATION: Authorize two-year extension of Agreement with the DTSC for

reimbursement of costs in an amount not to exceed $82,445 through calendar year 2020 to review documents prepared by the District for the North Basin RI/FS

END OF CONSENT CALENDAR

INFORMATIONAL ITEMS 5. UPDATE ON RESEARCH & DEVELOPMENT (R&D) ACTIVITIES 6. SANTA ANA WATERSHED PROJECT AUTHORITY ACTIVITIES 7. COMMITTEE/CONFERENCE/MEETING REPORTS ► April 24 - Joint Planning Committee (Chair Green) ► Reports on Committees/Conferences/Meetings Attended at District Expense 8. VERBAL REPORTS

PRESIDENT'S REPORT GENERAL MANAGER'S REPORT DIRECTORS’ REPORTS GENERAL COUNSEL REPORT

RECESS TO CLOSED SESSION ● CONFERENCE WITH LABOR NEGOTIATORS [Government Code Section 54957.6] OCWD designated representative: Stephanie Dosier ¤ Employee Organization: Orange County Employee Association: and ¤ Non-Represented Employees (Confidential and Management) RECONVENE IN OPEN SESSION ADJOURNMENT

3

Agenda Posting: In accordance with the requirements of California Government Code Section 54954.2, this agenda has been posted in the main lobby of the Orange County Water District, 18700 Ward Street, Fountain Valley, CA and on the OCWD website: www.ocwd.com not less than 72 hours prior to the meeting date and time above. All written materials relating to each agenda item are available for public inspection in the office of the Assistant District Secretary. Backup material for the Agenda is available at the District offices for public review and can be viewed online at the District’s website: www.ocwd.com. Accommodations to the Disabled: Pursuant to the Americans with Disabilities Act, persons with a disability who require a disability-related modification or accommodation in order to participate in a meeting, including auxiliary aids or services, may request such modification or accommodation from the District Secretary at (714)378-3233, by email at [email protected] by fax at (714) 378-3373. Notification 24 hours prior to the meeting will enable District staff to make reasonable arrangements to assure accessibility to the meeting. Availability of Agenda Material: As a general rule, agenda reports or other written documentation that has been prepared or organized with respect to each item of business listed on the agenda can be reviewed at www.ocwd.com. Copies of these materials and other disclosable public records distributed to all or a majority of the members of the Board of Directors in connection with an open session agenda item are also on file with and available for inspection at the Office of the District Secretary, 18700 Ward Street, Fountain Valley, California, during regular business hours, 8:00 a.m. to 5:00 p.m., Monday through Friday. If such writings are distributed to members of the Board of Directors on the day of a Board meeting, the writings will be available at the entrance to the Board of Directors meeting room at the Orange County Water District office.

http://www.ocwd.com/

http://www.ocwd.com/

mailto:[email protected]

1

AGENDA ITEM SUBMITTAL

Meeting Date: May 1, 2019 Budgeted: Yes Budgeted Amount: $3,000

To: Communications/Leg. Liaison Cte. Cost Estimate (gross): $3,000Board of Directors Funding Source: General Fund

Program/Line Item No.: 1010.51112 From: Mike Markus General Counsel Approval: N/A

Engineers/Feasibility Report: N/A Staff Contact: E. Torres/D. Pinnick CEQA Compliance: N/A

Subject: ORANGE COUNTY SCIENCE & ENGINEERING FAIR STUDENT WINNERS OF OCWD SPECIAL AWARDS

SUMMARY

The Orange County Water District (OCWD) recently honored Orange County Science & Engineering Fair students (OCSEF) in grades 6-12 for outstanding and innovative water-related projects. There were 10 winning teams. At the May 1 OCWD Board meeting, students will be in attendance to receive OCWD certificates and checks totaling $3,000.

The following students were chosen to receive 2019 OCWD Special Awards at the OCSEF:

Junior Division (grades 6-8)

• Minaret Academy student Jenna Darwish was awarded $100 for “UV WaterDisinfection.”

• Minaret Academy student Hunaina Hirji was awarded $100 for “Is it the Right Pipe?”

• Talbert Middle School student Kelsey Coppa was awarded $100 for “A HomemadeClosed Loop Shower System.”

• University Park Elementary School students Giselle Duregger and teammatesYousef Alsharif and Berra Ozgun were awarded $100 for “Desalination Device.”

• Venado Middle School student Akshit Gupta was awarded $100 for “Surface WaterCleaning Ro-Boat.”

• Venado Middle School student Swara Kulkarni and teammates Prakruthi Praveenand Poorvi Kheni were awarded $100 for “Deceiving Droplets: The Elucidation ofTap Water and Bottled Water Distinctions.”

2

Senior Division (grades 9-12)

• Villa Park High School student Ryan Brown was awarded $200 for “We Never Knowthe Worth of Water Till the Well is Dry.”

• Cornelia Connelly High School students Allison Hernandez and Samie Baclig wereawarded $500 for “Going With the Flow: Using Flocculation to Determine Amount ofTotal Suspended Solids in Freshwater Samples.”

• Woodbridge High School student Joanmarie Hardcastle was awarded $700 for “TheEffect of Water Quality on Macroinvertebrate Colonization and Algae Growth.”

• University High School student Pranav Moudgalya was awarded $1,000 for“Assessment of Organic Waste Materials in Nitrate Filtration of Southern CaliforniaWaters.”

RECOMMENDATION

Informational


Meeting Date: May 1, 2019 Budgeted: N/A Budgeted Amount: To: Board of Directors Cost Estimate $4,340,318.94 Funding Source: N/A Program/Line Item No. N/A From: Mike Markus General Counsel Approval: N/A Engineers/Feasibility Report: N/A Staff Contact: M. Ochoa CEQA Compliance: N/A Subject: APPROVAL OF CASH DISBURSEMENTS SUMMARY For the period of April 11, 2019 through April 24, 2019 including manual checks and wire transfers, staff is presenting cash disbursements totaling $4,340,318.94 disbursed for each period as follows.

Accounts Payable:

04/11/2019 to 04/17/2019 $ 1,665,017.59

04/18/2019 to 04/24/2019 $ 1,600,260.63

Payroll:

$ 1,075,040.72

Total Disbursements $ 4,340,318.94

RECOMMENDATION Ratify/Authorize payment of bills PRIOR RELEVANT BOARD ACTION(S) Semi-monthly

Check No. Vendor Name Invoice # Invoice Amount Check Amount

Accounts Payable Check Register Presented for Board Ratification and/or Approval

1Begin Date:

Check Register

Orange County Water District

Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$55.00 Inv# MARCH 2019 CC BH#21 LVS/BH: CA-NV AWWA

certificati

U.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$18.81 Inv# MARCH 2019 CC BH#22 RLP/BH: name

plate/Dir.Zahra


SYSTEM

91290 04/17/2019

$200.00 Inv# MARCH 2019 CC BH#23 KL/BH: job post/Sr.I&E

technic


SYSTEM

91290 04/17/2019

$200.00 Inv# MARCH 2019 CC BH#24 KL/BH: job post/R&D Lab

Techni


SYSTEM

91290 04/17/2019

$19.98 Inv# MARCH 2019 CC BH#25 EL/BH: EIN labels/new

excavato


SYSTEM

91290 04/17/2019

$127.70 Inv# MARCH 2019 CC BH#26 RJO/BH: electric cart

parts


SYSTEM

91290 04/17/2019

$84.96 Inv# MARCH 2019 CC BH#27 MRM/BH: Register/FHQ

thru 6/12


SYSTEM

91290 04/17/2019

$350.35 Inv# MARCH 2019 CC BH#28 RSW/BH: syringe filtersU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$100.00 Inv# MARCH 2019 CC BH#29 BCD/BH:Cloud user

4/22-4/21


SYSTEM

91290 04/17/2019

$133.76 Inv# MARCH 2019 CC BH#2B SD/BH: safety lens/HZRU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$150.00 Inv# MARCH 2019 CC BH#3 JDB/BH: truck washesU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$188.00 Inv# MARCH 2019 CC BH#30 DS/BH: CWEA

membership


SYSTEM

91290 04/17/2019

$772.27 Inv# MARCH 2019 CC BH#33 RSW/BH: supplies for

tour


SYSTEM

91290 04/17/2019

$293.90 Inv# MARCH 2019 CC BH#34 RSW/BH: chlorine test

strips


SYSTEM

91290 04/17/2019

$220.00 Inv# MARCH 2019 CC BH#35 PAB/BH: ASSP

membership


SYSTEM

91290 04/17/2019

$543.09 Inv# MARCH 2019 CC BH#36 JRS/BH: motorU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$28.50 Inv# MARCH 2019 CC BH#37 JRS/BH: capU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$115.60 Inv# MARCH 2019 CC BH#39 JRS/BH: valve ballU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$731.10 Inv# MARCH 2019 CC BH#4 JRS/BH: telesteps laddersU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019



2Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$667.80 Inv# MARCH 2019 CC BH#40 MVP/BH: painting/room

C4


SYSTEM

91290 04/17/2019

$111.96 Inv# MARCH 2019 CC BH#41 EHC/BH: purifier/tablet

glass


SYSTEM

91290 04/17/2019

$195.28 Inv# MARCH 2019 CC BH#5 PMD/BH: PCB switchU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$25.07 Inv# MARCH 2019 CC BH#6 RSW/BH: CWEF

supplies-chalk


SYSTEM

91290 04/17/2019

$74.85 Inv# MARCH 2019 CC BH#9 MRM/BH: LA Times/F.V.

Thru 5/2


SYSTEM

91290 04/17/2019

$50.00 Inv# MARCH 2019 CC ET#1 CLN/ET: Facebook Drip

Drop ad


SYSTEM

91290 04/17/2019

$49.00 Inv# MARCH 2019 CC ET#2 CLN/ET: Slick Text

subscriptio


SYSTEM

91290 04/17/2019

$1,159.40 Inv# PATEL 2/24-3/1/19 TRAVEL5 2/24-3/1 New

Orleans, LA AMTA


SYSTEM

91290 04/17/2019

$45.00 Inv# PATEL 3/20/19 TRAVEL 3/20 Orange OCWAU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$190.00 Inv# PHILIPS 3/13-14/19 TRAING 3/13-14 JPIA

Training/Claremon


SYSTEM

91290 04/17/2019

($50.00)Inv# PLUMLEE 11/15-16 TRAVEL 11/15 Boston, MA MIT

prk refun


SYSTEM

91290 04/17/2019

($420.00)Inv# PLUMLEE 4/15/19 CWU MHP 4/15 CWU SeminarU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$270.02 Inv# PLUMLEE 4/15/19 CWU* MHP 4/15 CWU SeminarU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$420.00 Inv# PLUMLEE 4/15/19 CWU** MHP 4/15/19 CWUU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$173.50 Inv# PLUMLEE 4/24/19 UNR SEMIN MHP 4/24/19 UNR

Seminar


SYSTEM

91290 04/17/2019

$725.00 Inv# ROWE 5/7-10/19 TRAVEL 5/7-10 Monterey ACWA

2019


SYSTEM

91290 04/17/2019

$582.60 Inv# SAFARIK 2/25-28/19 TRAVE3 2/25-28 New

Orleans, LA AMTA


SYSTEM

91290 04/17/2019

$825.00 Inv# SALAS 4/8-11/19 TRAVEL 4/8-11 Palm Springs

CWEA


SYSTEM

91290 04/17/2019

$582.60 Inv# SCOTT-ROBERTS 2/25/19 T1 2/25-28 New

Orleans, LA AMTA


SYSTEM

91290 04/17/2019



3Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$300.00 Inv# SCOTT-ROBERTS 3/19/19 TR 3/19 Garden Grove

WateReuse


SYSTEM

91290 04/17/2019

$416.60 Inv# SCOTT-ROBERTS 4/26/19 TRA 4/26 Chicago, IL

MWRDGC


SYSTEM

91290 04/17/2019

$1,195.00 Inv# TORRES 10/20-22/19 TRAVEL 10/20-22/19 San

Diego PRSA


SYSTEM

91290 04/17/2019

$52.02 Inv# TORRES 3/12/19 TRAVEL 3/12 Anaheim Mtg

w/Dir.Brandma


SYSTEM

91290 04/17/2019

$16.00 Inv# TORRES 3/18/19 TRAVEL 3/18 Garden Grove

WateReuse


SYSTEM

91290 04/17/2019

($134.92)Inv# WOODSIDE 2/28-3/1/19 TRA3 2/28-3/1 Las Vegas,

NV Multi-s


SYSTEM

91290 04/17/2019

$292.96 Inv# WOODSIDE 4/25/19 TRAVEL 4/25 SACTO UCSD

Panel Meeting


SYSTEM

91290 04/17/2019

$45.00 Inv# BOLIN 3/13/19 TRAVEL 3/13 Orange GRA

Southern Calif


SYSTEM

91290 04/17/2019

$197.99 Inv# BRANDMAN 3/18/19 TRAVEL1 3/18 SACTO

Legislative Meeting


SYSTEM

91290 04/17/2019

$177.98 Inv# BRANDMAN 3/18/19 TRAVEL2 3/18 SACTO

Legislative Meeting


SYSTEM

91290 04/17/2019

$228.16 Inv# COSTCO ORDER#278025736 Generated by

reorder 3/18/19 1


SYSTEM

91290 04/17/2019


reorder 3/18/19 1


SYSTEM

91290 04/17/2019


reorder 3/18/19 1


SYSTEM

91290 04/17/2019


reorder 3/14/19 1


SYSTEM

91290 04/17/2019


reorder 3/14/19 1


SYSTEM

91290 04/17/2019


reorder 3/14/19 1


SYSTEM

91290 04/17/2019


reorder 3/14/19 1


SYSTEM

91290 04/17/2019

$297.96 Inv# DADAKIS 3/6/19 TRAVEL 3/6 SACTO State Brd

PFAS


SYSTEM

91290 04/17/2019

$290.00 Inv# DUNKIN 3/5-6/19 TRAVEL 3/5-6 SACTO ACWA

Legislative


SYSTEM

91290 04/17/2019



4Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$190.00 Inv# FLINT 3/13-14/19 TRAING JDF 3/13-14 JPIA

train./Clarem


SYSTEM

91290 04/17/2019

$18.00 Inv# HERNDON 2/28-3/1/19 TRAV2 2/28-3/1 Palm

Springs Urban Wa


SYSTEM

91290 04/17/2019

$35.00 Inv# HUTCHINSON 3/13/19 TRAVEL 3/13 Orange GRA

Southern Calif


SYSTEM

91290 04/17/2019

$205.89 Inv# MARCH 2019 CC BH#1 BL/BH: safety sign & postU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$623.15 Inv# MARCH 2019 CC BH#10 NBI/BH: ID badgesU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$144.00 Inv# MARCH 2019 CC BH#11 THT/BH: Google domain

renew-12


SYSTEM

91290 04/17/2019

$81.42 Inv# MARCH 2019 CC BH#12 BJ/BH: ant control sprayU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$184.16 Inv# MARCH 2019 CC BH#13 RSW/BH: potable PAU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$1,596.05 Inv# MARCH 2019 CC BH#14 JRS/BH: motorsU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$3,489.97 Inv# MARCH 2019 CC BH#15 LJ/BH: ovenU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$2,044.44 Inv# MARCH 2019 CC BH#16 PMD/BH: pulleysU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$217.18 Inv# MARCH 2019 CC BH#17 BRN/BH: IPAD stand &

case


SYSTEM

91290 04/17/2019

$1,104.75 Inv# MARCH 2019 CC BH#18 RSW/BH: lapel pinsU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$1,639.60 Inv# MARCH 2019 CC BH#19 RJO/BH: battery

charger-meter


SYSTEM

91290 04/17/2019

$237.08 Inv# MARCH 2019 CC BH#2 SD/BH: safety lens/HZRU.S. BANK CORPORATE PAYMENT

SYSTEM

91290 04/17/2019

$349.00 Inv# MARCH 2019 CC LAV#4 RSW/LAV: Facebook

membership


SYSTEM

91290 04/17/2019

$1,195.00 Inv# AYALA 10/20-22/19 TRAVEL GMA 10/20-22/19 San

Diego PRSA


SYSTEM

91290 04/17/2019

$410.21 Inv# MARCH 2019 CC BH#20 RAE/BH:Costco

#27795169, suppl


SYSTEM

91290 04/17/2019

Total for Check: 91290 $442,364.91 $29,186.87

$60.00 Inv# 895241 LABORATORY SUPPLIESACCUSTANDARD, INC. 91291 04/17/2019



5Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$10.68 Inv# 895241 SHIPPINGACCUSTANDARD, INC. 91291 04/17/2019

$7.00 Inv# 895241 HANDLINGACCUSTANDARD, INC. 91291 04/17/2019

Total for Check: 91291 $17,130.07 $77.68

$472.48 Inv# C46139 RO: WIGGINS FORKLIFT CYLINDERACS HYDRAULICS INC 91292 04/17/2019

Total for Check: 91292 $472.48 $472.48

$5,321.13 Inv# 226160 BPO WASTE DISPOSALACT ENVIRO 91293 04/17/2019

Total for Check: 91293 $13,871.75 $5,321.13

$86,377.68 Inv# WORKERSCOMP JAN-MAR19 WorkersComp

Jan-Mar2019

ACWA/JPIA 91294 04/17/2019

Total for Check: 91294 $701,382.62 $86,377.68

$576.38 Inv# 512701 LABORATORY SUPPLIESAGILENT TECHNOLOGIES, INC. 91295 04/17/2019

$95.70 Inv# 512701 LABORATORY SUPPLIESAGILENT TECHNOLOGIES, INC. 91295 04/17/2019

Total for Check: 91295 $15,474.74 $672.08

$142.73 Inv# 0127602300MAR19 3/11-4/9HCF29ANAHEIM, CITY OF 91296 04/17/2019

$46.74 Inv# 0127603000MAR19 3/11-4/9KWH0ANAHEIM, CITY OF 91296 04/17/2019




$1,581.36 Inv# 0127464300MAR19 3/11-4/9HCF529ANAHEIM, CITY OF 91296 04/17/2019

Total for Check: 91296 $238,949.01 $2,377.26

$37.68 Inv# 1450597670 UNIFORM SERVICESARAMARK UNIFORM SERVICES 91297 04/17/2019



Total for Check: 91297 $41,500.60 $267.79

$274.33 Inv# 714 630-3232APR19 4/4-5/3AT & T 91298 04/17/2019

Total for Check: 91298 $34,613.88 $274.33

$2,189.28 Inv# 714 630-4323APR19 4/4-5/3AT & T 91299 04/17/2019

Total for Check: 91299 $34,613.88 $2,189.28

$85.87 Inv# 335 253-2206APR19 4/7-5/6AT & T 91300 04/17/2019

Total for Check: 91300 $34,613.88 $85.87

$69.29 Inv# 339 259-6949APR19 4/7-5/6AT & T 91301 04/17/2019

Total for Check: 91301 $34,613.88 $69.29

$11.25 Inv# 2/19/19 CWEF 2/19 CWEF walk through/IrvineAYALA, GINA 91302 04/17/2019



6Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$16.00 Inv# 3/18/19 TRAVEL 3/18 Garden Grove WateReuseAYALA, GINA 91302 04/17/2019

$5.56 Inv# 3/22/19 SUPPLIES 3/22 NGWL activity suppliesAYALA, GINA 91302 04/17/2019

$51.85 Inv# 3/26/19 CWEF 3/26/19 CWEF EventAYALA, GINA 91302 04/17/2019

Total for Check: 91302 $84.66 $84.66

$77.39 Inv# 433282 BPO LANDSCAPE SUPPLIESB & M LAWN & GARDEN CENTER 91303 04/17/2019

Total for Check: 91303 $904.69 $77.39

$112.45 Inv# 4847163 BPO BATTERIESBATTERY SYSTEMS 91304 04/17/2019

$1.00 Inv# 4847163 battery feeBATTERY SYSTEMS 91304 04/17/2019

Total for Check: 91304 $5,900.91 $113.45

$1,957.50 Inv# 0313110-IN Certify Rescue HoistsBC WIRE ROPE & RIGGING 91305 04/17/2019

$913.50 Inv# 0313110-IN Certify Rescue HoistsBC WIRE ROPE & RIGGING 91305 04/17/2019

$48.74 Inv# 0313110-IN FreightBC WIRE ROPE & RIGGING 91305 04/17/2019

Total for Check: 91305 $6,939.56 $2,919.74

$1,400.59 Inv# 102912 LABORATORY SUPPLIESBIOTAGE LLC 91306 04/17/2019

$40.47 Inv# 102912 SHIPPINGBIOTAGE LLC 91306 04/17/2019

Total for Check: 91306 $29,443.58 $1,441.06

$522.00 Inv# BPI933992 R&D CHEMICALSBRENNTAG PACIFIC INC. 91307 04/17/2019

$100.00 Inv# BPI933992 drum depositBRENNTAG PACIFIC INC. 91307 04/17/2019

$100.00 Inv# BPI933992 deposit r/c to 10.11515BRENNTAG PACIFIC INC. 91307 04/17/2019

$75.00 Inv# BPI933992 min.order surchargeBRENNTAG PACIFIC INC. 91307 04/17/2019

($13.94)Inv# BPI933992 DiscountBRENNTAG PACIFIC INC. 91307 04/17/2019

($100.00)Inv# BPI933992 deposit r/c to 10.11515BRENNTAG PACIFIC INC. 91307 04/17/2019

$8,476.94 Inv# BPI934812 4/9 12.7785 tons caustic sodaBRENNTAG PACIFIC INC. 91307 04/17/2019


Total for Check: 91307 $845,681.26 $8,990.46

$425.00 Inv# 1434144 228788 D.SWANSONCALCPA 91308 04/17/2019

Total for Check: 91308 $850.00 $425.00

$940.00 Inv# 60961 BPO TRAFFIC CONTROL SERVICECALIFORNIA BARRICADE

RENTALS, INC.

91309 04/17/2019

Total for Check: 91309 $10,340.00 $940.00

$456.00 Inv# 0011250555 5179533CALIFORNIA NEWSPAPERS

PARTNERSHIP

91310 04/17/2019

Total for Check: 91310 $17,153.00 $456.00



7Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$238.47 Inv# 72481 BPO FORD PARTSCORPORATE BILLING LLC 91311 04/17/2019

Total for Check: 91311 $4,525.89 $238.47

$4,002.00 Inv# ACCT#11.3.41415.1.3134 encroachment permit

GAP valve

CITY OF FOUNTAIN VALLEY 91312 04/17/2019

Total for Check: 91312 $10,582.00 $4,002.00

$4,152.00 Inv# 20190410 Encroach.Permit-Right of WayCITY OF FOUNTAIN VALLEY 91313 04/17/2019

Total for Check: 91313 $10,582.00 $4,152.00

$3,242.00 Inv# 13180100-08 Feb19 Emergency response planCLARIS STRATEGY INC. 91314 04/17/2019

Total for Check: 91314 $40,264.00 $3,242.00

$8,900.00 Inv# 2844 Image2000 Record Manag Syst.COMPLETE PAPERLESS

SOLUTIONS, LLC

91315 04/17/2019


SOLUTIONS, LLC

91315 04/17/2019


SOLUTIONS, LLC

91315 04/17/2019


SOLUTIONS, LLC

91315 04/17/2019

Total for Check: 91315 $19,301.12 $19,301.12

$4,987.00 Inv# 14027 NORTHROP Feb19 legal/NorthropCONNOR, FLETCHER &

HEDENKAMP LLC

91316 04/17/2019

$10,493.94 Inv# 14028 SABIC Feb19 legal/SabicCONNOR, FLETCHER &

HEDENKAMP LLC

91316 04/17/2019

$3,190.00 Inv# 14029 SOUTH BASIN APPEALS Feb19 legal/South

Basin Appeal

CONNOR, FLETCHER &

HEDENKAMP LLC

91316 04/17/2019

Total for Check: 91316 $238,298.34 $18,670.94

$3,549.75 Inv# 8378 7/18-8/12 #208291 GWRSUQCSI SERVICES, INC. 91317 04/17/2019

Total for Check: 91317 $78,782.00 $3,549.75

$179.27 Inv# 1127951 BPO WATER SOFTNER SERVICECULLIGAN OF SANTA ANA 91318 04/17/2019

Total for Check: 91318 $2,146.97 $179.27

$249.69 Inv# 0001763047 BPO PORTA POTTY SERVICEDIAMOND ENVIRONMENTAL

SERVICES

91319 04/17/2019

$246.03 Inv# 0001980564 BPO PORTA POTTY SERVICEDIAMOND ENVIRONMENTAL

SERVICES

91319 04/17/2019

Total for Check: 91319 $2,975.37 $495.72

$2,200.00 Inv# 4715 Test and Certify 55 back flowEARL POTTS PLUMBING, INC. 91320 04/17/2019

Total for Check: 91320 $2,310.00 $2,200.00



8Begin Date:

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Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$103.31 Inv# 191298 LABORATORY SUPPLIESEVANTEC LAB SUPPLY 91321 04/17/2019

$40.00 Inv# 191298 SHIPPINGEVANTEC LAB SUPPLY 91321 04/17/2019

$32.50 Inv# 191298 HAZMAT FEEEVANTEC LAB SUPPLY 91321 04/17/2019

($1.75)Inv# 191298 DISCOUNTEVANTEC LAB SUPPLY 91321 04/17/2019

Total for Check: 91321 $1,749.54 $174.06

$306.04 Inv# 101-245336 BPO AUTO PARTSFACTORY MOTOR PARTS 91322 04/17/2019

$2.00 Inv# 101-245336 CA Battery FeeFACTORY MOTOR PARTS 91322 04/17/2019

$207.81 Inv# 12-3065066 BPO AUTO PARTSFACTORY MOTOR PARTS 91322 04/17/2019

Total for Check: 91322 $4,692.15 $515.85

$937.87 Inv# 714-274-0393APR19 4/7-5/6FRONTIER COMMUNICATIONS 91323 04/17/2019

Total for Check: 91323 $36,145.69 $937.87


Total for Check: 91324 $36,145.69 $48.19

$40.00 Inv# 3/7-4/6/19 STIPEND 3/7-4/6/19 phone stipendField, David M. 91325 04/17/2019

Total for Check: 91325 $446.01 $40.00

$4,147.50 Inv# 064388.01*71438 Thru 3/1 Anah.Lake Valve VaultGANNETT FLEMING, INC. 91326 04/17/2019

Total for Check: 91326 $8,727.50 $4,147.50

$544.19 Inv# 2819252 Generated by reorder 3/5/19 1:ACCO BRANDS USA, LLC 91327 04/17/2019

Total for Check: 91327 $544.19 $544.19

$30.03 Inv# 7107760572 WQ BOOTH CHILDRENS FESTIVALGRAINGER INC. 91330 04/17/2019

$95.65 Inv# 9095326303 BPO INDUSTRIAL SUPPLIESGRAINGER INC. 91330 04/17/2019



$287.32 Inv# 9105084942 MF CIP Tank Filters/Grinding WGRAINGER INC. 91330 04/17/2019






$87.82 Inv# 9107608177 TELESCOPING INSPECTION

MIRRIOR

GRAINGER INC. 91330 04/17/2019


$30.34 Inv# 9108997397 Welding SuppliesGRAINGER INC. 91330 04/17/2019



9Begin Date:

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Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose




$447.20 Inv# 9109597667 SCADA UPSGRAINGER INC. 91330 04/17/2019

$265.75 Inv# 9109980871/9112022794 Generated by reorder

1/31/19 1

GRAINGER INC. 91330 04/17/2019


1/31/19 1

GRAINGER INC. 91330 04/17/2019


1/31/19 1

GRAINGER INC. 91330 04/17/2019


1/31/19 1

GRAINGER INC. 91330 04/17/2019


1/31/19 1

GRAINGER INC. 91330 04/17/2019



Total for Check: 91330 $103,281.49 $3,681.31

$239.74 Inv# 298232 Generated by reorder 2/22/19 1GREAT WESTERN SANITARY

SUPPLIES

91331 04/17/2019

($2.40)Inv# 298232 DiscountGREAT WESTERN SANITARY

SUPPLIES

91331 04/17/2019

Total for Check: 91331 $2,948.83 $237.34

$282.00 Inv# 11387147 HACH ICE-PIC 1NTU CalibrationHACH COMPANY 91332 04/17/2019

$49.75 Inv# 11387147 UPSHACH COMPANY 91332 04/17/2019

Total for Check: 91332 $34,242.12 $331.75

$13,621.25 Inv# 813068 SBGPP NCP Feb19 SBGPP NCP

Conting.Compli

HARGIS + ASSOCIATES, INC. 91333 04/17/2019

Total for Check: 91333 $186,211.80 $13,621.25

$111.88 Inv# SI-4009441 4" Pipe OCWD-M16 Well CasingsHOLE PRODUCTS 91334 04/17/2019

$38.07 Inv# SI-4009441 4" Pipe OCWD-M16 Well CasingsHOLE PRODUCTS 91334 04/17/2019

Total for Check: 91334 $3,604.63 $149.95

$110.05 Inv# 2531018 BPO INDUSTRIAL SUPPLIESHOME DEPOT CREDIT SERVICES 91335 04/17/2019


($21.47)Inv# 5191503 RefundINV#5523647HOME DEPOT CREDIT SERVICES 91335 04/17/2019




10Begin Date:

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Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose



Total for Check: 91335 $16,831.56 $213.63

$18,691.25 Inv# 3089770109 Thru 3/2 Smith Basin RehabHUITT-ZOLLARS, INC. 91336 04/17/2019

Total for Check: 91336 $171,995.78 $18,691.25

$10.75 Inv# 1/15/19 TRAVEL 1/15 Los Angeles MTBE TrialHunt, William 91338 04/17/2019





$32.42 Inv# 1/9-2/8/19 STIPEND 1/9-2/8/19 phone stipendHunt, William 91338 04/17/2019

$32.55 Inv# 12/9/18-1/8/19 STIPEND 12/9/18-1/8/19 phone

stipend

Hunt, William 91338 04/17/2019

$32.42 Inv# 2/9-3/8/19 STIPEND 2/9-3/8/19 phone stipendHunt, William 91338 04/17/2019

$48.69 Inv# 3/27/19 TRAVEL 3/27 Los Angeles So.Basin UCIHunt, William 91338 04/17/2019

$8.00 Inv# 3/29/19 TRAVEL 3/29 Santa Ana So.Basin statusHunt, William 91338 04/17/2019

$48.25 Inv# 4/5/19 TRAVEL 4/5 Los Angeles Northrop mediaHunt, William 91338 04/17/2019

Total for Check: 91338 $1,551.74 $317.98

$734.89 Inv# 00125325 Level Troll 400 SensorIN-SITU INC. 91339 04/17/2019

$48.00 Inv# 00125325 S/HIN-SITU INC. 91339 04/17/2019

Total for Check: 91339 $16,957.63 $782.89

$82.30 Inv# 908340 BPO PIPE & SUPPLIESIRVINE PIPE & SUPPLY 91340 04/17/2019

$17.02 Inv# 908340 Incoming FrtIRVINE PIPE & SUPPLY 91340 04/17/2019

$11.05 Inv# 908340 ShippingIRVINE PIPE & SUPPLY 91340 04/17/2019

($2.21)Inv# 908340 DiscountIRVINE PIPE & SUPPLY 91340 04/17/2019

$354.33 Inv# 908815 BPO PIPE & SUPPLIESIRVINE PIPE & SUPPLY 91340 04/17/2019

$14.80 Inv# 908815 ShippingIRVINE PIPE & SUPPLY 91340 04/17/2019


Total for Check: 91340 $37,204.12 $469.91

$40.00 Inv# 032819-005 LunchReg,Rowe,Bilodeau,FVISDOC 91341 04/17/2019

Total for Check: 91341 $147.00 $40.00

$300.00 Inv# OCWD01 Video of Prado BasinJAMES NESTOR PRODUCTIONS 91342 04/17/2019

Total for Check: 91342 $300.00 $300.00



11Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$7,500.00 Inv# 157272 Apr19 legis.support/SACTOJOE A. GONSALVES AND SON 91343 04/17/2019

Total for Check: 91343 $76,095.92 $7,500.00

$3,864.00 Inv# 185464 Magnetic Level for BurrisJOHN C. ERNST & CO INC. 91344 04/17/2019

$129.73 Inv# 185464 Shipping UPSJOHN C. ERNST & CO INC. 91344 04/17/2019

Total for Check: 91344 $5,900.21 $3,993.73

$30,337.50 Inv# 1236 3/4-31 Talbert Seawtr.IntrusioJiG CONSULTANTS 91345 04/17/2019

Total for Check: 91345 $141,753.67 $30,337.50

$539.75 Inv# ALAMITOS BARRIER #7 REFUN Alamitos Barrier

Improve.Proje

L.A. COUNTY DEPT. PUBLIC

WORKS

91346 04/17/2019

Total for Check: 91346 $514,170.16 $539.75

$5,996.10 Inv# 1190207440A 3/17 25.30 tons limeLHOIST NORTH AMERICA 91347 04/17/2019

$5,849.16 Inv# 1190207440B 3/19 24.68 tons limeLHOIST NORTH AMERICA 91347 04/17/2019

$5,797.02 Inv# 1190207739 3/21 24.46 tons limeLHOIST NORTH AMERICA 91347 04/17/2019

Total for Check: 91347 $644,493.08 $17,642.28

$94.50 Inv# 12412 ADM/FIN BPO FOR LUCCI'SLUCCI'S DELI BAKERY 91348 04/17/2019

$20.00 Inv# 12412 ADM/FIN DeliveryLUCCI'S DELI BAKERY 91348 04/17/2019

Total for Check: 91348 $7,689.90 $114.50

$107.74 Inv# 4/10/19 SUPPLIES 4/10/19 computer hardwareLi, Li 91349 04/17/2019

Total for Check: 91349 $107.74 $107.74

$79.52 Inv# 366776/5 BPO INDUSTRIAL SUPPLIESMCFADDEN-DALE HARDWARE CO. 91350 04/17/2019

($2.21)Inv# 366776/5 DiscountMCFADDEN-DALE HARDWARE CO. 91350 04/17/2019







Total for Check: 91350 $6,131.13 $366.66

$91.92 Inv# 91438675 BPO INDUSTRIAL SUPPLIESMCMASTER-CARR SUPPLY

COMPANY

91351 04/17/2019

$7.39 Inv# 91438675 ShippingMCMASTER-CARR SUPPLY

COMPANY

91351 04/17/2019

($1.84)Inv# 91438675 DiscountMCMASTER-CARR SUPPLY

COMPANY

91351 04/17/2019



12Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose


COMPANY

91351 04/17/2019


COMPANY

91351 04/17/2019


COMPANY

91351 04/17/2019

Total for Check: 91351 $26,307.12 $146.56

$22.04 Inv# 3/20/19 COLUMN STUDY 3/20 column study

@FHQ

Nguyen, John 91352 04/17/2019

$11.02 Inv# 3/25/19 COLUMN STUDY 3/25 column study

@FHQ

Nguyen, John 91352 04/17/2019

Total for Check: 91352 $58.83 $33.06

$3,445.00 Inv# 2656989 3/18 5000 gal s.hypochloriteOLIN CHLOR ALKALI PRODUCTS

AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019


AND VINYLS

91354 04/17/2019

Total for Check: 91354 $1,643,190.10 $40,726.79

$827.25 Inv# #1 CWEF - PRESENTERONE BEAD 91355 04/17/2019



13Begin Date:

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Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

Total for Check: 91355 $827.25 $827.25

$9.25 Inv# S6115333.001 S&HONESOURCE DISTRIBUTORS INC. 91356 04/17/2019

$5.75 Inv# S6115333.001 Generated by reorder 3/25/19 2ONESOURCE DISTRIBUTORS INC. 91356 04/17/2019

($0.05)Inv# S6115333.001 DiscountONESOURCE DISTRIBUTORS INC. 91356 04/17/2019

Total for Check: 91356 $99,135.26 $14.95

$4,842.71 Inv# SI419814 RUSH* HDPE FOR PRADO REPAIRSPACIFIC CORRUGATED PIPE

COMPANY, LLC

91357 04/17/2019

$300.00 Inv# SI419814 RUSH* HDPE FOR PRADO REPAIRSPACIFIC CORRUGATED PIPE

COMPANY, LLC

91357 04/17/2019

($102.85)Inv# SI419814 DiscountPACIFIC CORRUGATED PIPE

COMPANY, LLC

91357 04/17/2019

Total for Check: 91357 $14,766.86 $5,039.86

$208,423.35 Inv# 18 (MBI-2017-1) Prog.Pmt#18 (MBI-2017-1)PACIFIC HYDROTECH

CORPORATION

91358 04/17/2019

$116,244.12 Inv# 18 (MBI-2017-1) Prog.Pmt#18 (MBI-2017-1)PACIFIC HYDROTECH

CORPORATION

91358 04/17/2019

$691.57 Inv# 18 (MBI-2017-1) Prog.Pmt#18 (MBI-2017-1)PACIFIC HYDROTECH

CORPORATION

91358 04/17/2019

Total for Check: 91358 $9,602,635.44 $325,359.04

$10,969.65 Inv# ESC1001737517 RET#18 Ret#18 P.Hydrotech

MBI-2017-1

PACIFIC WESTERN BANK 91359 04/17/2019

$6,118.11 Inv# ESC1001737517 RET#18 Ret#18 P.Hydrotech

MBI-2017-1


$36.40 Inv# ESC1001737517 RET#18 Ret#18 P.Hydrotech

MBI-2017-1


Total for Check: 91359 $505,401.89 $17,124.16

$25.00 Inv# 122417 Pactronics Motorola HT750 RadiPACTRONICS, INC. 91360 04/17/2019

$11.30 Inv# 122417 Frt&InsurancePACTRONICS, INC. 91360 04/17/2019

($0.73)Inv# 122417 DiscountPACTRONICS, INC. 91360 04/17/2019

Total for Check: 91360 $2,512.28 $35.57

$10,700.00 Inv# I-41888 Rebuild, coat and install BlowPAMCO MACHINE WORKS, INC 91361 04/17/2019




Total for Check: 91361 $37,832.63 $19,664.03



14Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$100,164.00 Inv# 8944-19-B PURCHASE/INSTALL CARPETPDC INTERIORS 91362 04/17/2019

Total for Check: 91362 $166,940.00 $100,164.00

$217.50 Inv# INV22452 CHAIR ARM CAPSPEOPLESPACE 91363 04/17/2019

Total for Check: 91363 $8,923.33 $217.50

$675.34 Inv# 24148 Generated by reorder 3/26/19 7PLATINUM COMPUTER SUPPORT 91364 04/17/2019



Total for Check: 91364 $28,363.63 $1,895.51

$2,950.00 Inv# 6241755-413 Generated by reorder 2/4/19 3:POWER PROS 91365 04/17/2019

$385.00 Inv# 6241755-413 ShippingPOWER PROS 91365 04/17/2019

Total for Check: 91365 $7,260.00 $3,335.00

$100.71 Inv# 3/17-19/19 TRAVEL 3/17-19 Garden Grove

WateReuse

Pham, Christine 91366 04/17/2019

Total for Check: 91366 $100.71 $100.71

$479.48 Inv# 390240011 NUMBERED STICKERSQUEEN BEACH PRINTERS, INC 91367 04/17/2019

$96.98 Inv# 390240011 NUMBERED STICKERSQUEEN BEACH PRINTERS, INC 91367 04/17/2019

Total for Check: 91367 $1,506.27 $576.46

$1,398.60 Inv# 08944501 65' Lift RentalQUINN COMPANY 91368 04/17/2019


$159.96 Inv# 08944501 65' Lift RentalQUINN COMPANY 91368 04/17/2019

Total for Check: 91368 $70,745.42 $2,770.75

$9,409.26 Inv# 802297 Smartnet RenewalRESILIENT COMMUNICATIONS INC 91372 04/17/2019








$787.39 Inv# 802297 Smartnet RenewalRESILIENT COMMUNICATIONS INC 91372 04/17/2019






15Begin Date:

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Date FYTDPurpose




















Total for Check: 91372 $82,681.55 $31,327.50

$1,792.00 Inv# OC 20 1900387 BPO TEMPORARY LABORSANDWOOD ENTERPRISES INC. 91373 04/17/2019

Total for Check: 91373 $12,608.00 $1,792.00

$1,546.84 Inv# SA ENCROACH.PERMITFEE SA

Encroach.PermitFeeGAP Boxes

SANTA ANA, CITY OF 91374 04/17/2019

Total for Check: 91374 $5,663.77 $1,546.84

$68.00 Inv# 507-6 O.C.W.D 03/19 BPO BOTTLED WATER

SERVICE

SIERRA SPRINGS/DS WATERS 91375 04/17/2019

Total for Check: 91375 $1,340.00 $68.00

$28.82 Inv# 90053852-001 BPO LANDSCAPE SUPPLIESSITEONE LANDSCAPE SUPPLY 91376 04/17/2019

($0.57)Inv# 90053852-001 DISCOUNTSITEONE LANDSCAPE SUPPLY 91376 04/17/2019

Total for Check: 91376 $1,192.56 $28.25

$4,503.00 Inv# 1453 LANDSCAPE MAINT AT FIELD HQSOLTIS AND COMPANY, INC. 91377 04/17/2019

$3,000.00 Inv# 1454 LANDSCAPE MAINTENANCE SERVICESSOLTIS AND COMPANY, INC. 91377 04/17/2019



16Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$286.00 Inv# SD200 LANDSCAPE MAINTENANCE SERVICESSOLTIS AND COMPANY, INC. 91377 04/17/2019

Total for Check: 91377 $98,580.40 $7,789.00

$0.26 Inv# 2-00-461-3071APR19 Underpaid acct

#2-00-461-3071

SOUTHERN CALIFORNIA EDISON

CO.

91378 04/17/2019

$12.71 Inv# 3-017-9139-64MAR19 3/11-4/9KWH26SOUTHERN CALIFORNIA EDISON

CO.

91378 04/17/2019


CO.

91378 04/17/2019

$734.19 Inv# 3-021-9405-46APR19 3/14-4/11KWH1884SOUTHERN CALIFORNIA EDISON

CO.

91378 04/17/2019


CO.

91378 04/17/2019

$531,515.51 Inv# 3-024-1041-07FEB19 2/11-3/13KWH5813910SOUTHERN CALIFORNIA EDISON

CO.

91378 04/17/2019


CO.

91378 04/17/2019


CO.

91378 04/17/2019

Total for Check: 91378 $5,271,298.43 $532,381.59

$90.06 Inv# 459104313-208 3/2-4/1SPRINT 91379 04/17/2019

Total for Check: 91379 $987.21 $90.06

$210.85 Inv# 3408428974 OFFICE SUPPLIESSTAPLES ADVANTAGE 91380 04/17/2019



Total for Check: 91380 $36,194.80 $282.26

$181,713.26 Inv# SWRCB CONTRACT03814-550-0 AR NO.

03814-19-13

STATE WATER RESOURCES

CONTROL BOARD

91381 04/17/2019

Total for Check: 91381 $17,054,719.40 $181,713.26

$624.14 Inv# INV6868 2" SS Gate Valves for Lime LooSUNSET INDUSTRIAL PARTS 91382 04/17/2019

($12.48)Inv# INV6868 DISCOUNTSUNSET INDUSTRIAL PARTS 91382 04/17/2019

$411.08 Inv# INV6877 Generated by reorder 4/4/19 10SUNSET INDUSTRIAL PARTS 91382 04/17/2019

($8.22)Inv# INV6877 DISCOUNTSUNSET INDUSTRIAL PARTS 91382 04/17/2019

Total for Check: 91382 $13,372.96 $1,014.52

$22,540.00 Inv# 190206 SANDY SCOTT-ROBERTSTERRACOSTA CONSULTING

GROUP INC

91383 04/17/2019

Total for Check: 91383 $63,332.50 $22,540.00



17Begin Date:

Check Register


Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$1,597.00 Inv# R.L. 2832 Lease R.L. 2832THE METROPOLITAN WATER

DISTRICT

91384 04/17/2019

Total for Check: 91384 $1,597.00 $1,597.00

$31,469.35 Inv# 8782CA0014R1 SCOPING STUDYTHE REGENTS OF UNIVERSITY OF

CALIFORNIA

91385 04/17/2019

Total for Check: 91385 $176,501.43 $31,469.35

$213.53 Inv# 94972 BPO CATERING SERVICESTOP HAT PRODUCTIONS 91386 04/17/2019

Total for Check: 91386 $4,416.22 $213.53

$36.54 Inv# 3/28/19 TRAVEL 3/28 Riverside SAWPA Agmt 22Tan, Lo 91387 04/17/2019

Total for Check: 91387 $2,313.60 $36.54

$188.56 Inv# 167787266-001 BPO HEAVY EQUIPMENT

RENTAL

UNITED RENTALS NORTHWEST,

INC.

91388 04/17/2019

Total for Check: 91388 $1,412.10 $188.56

$3,648.20 Inv# LA717411 4/11 25.16 tons sulfuric acidUNIVAR USA INC. 91389 04/17/2019

($72.96)Inv# LA717411 DiscountUNIVAR USA INC. 91389 04/17/2019



$1,396.79 Inv# LA717527 4/11 760 gal s.bisulfiteUNIVAR USA INC. 91389 04/17/2019


Total for Check: 91389 $259,387.12 $8,524.42

$60.00 Inv# INV-AA31109 CALIBRATIONUS CALIBRATION INC 91390 04/17/2019

Total for Check: 91390 $120.00 $60.00

$99.16 Inv# 274134-Q 9908 3/10-16 screen/mark pipesUTILIQUEST LLC 91391 04/17/2019

$1,386.90 Inv# 274134-Q 9911 3/10-16 screen/mark pipesUTILIQUEST LLC 91391 04/17/2019



Total for Check: 91391 $83,830.42 $2,311.49

$1,402.42 Inv# 8085841800 LABORATORY SUPPLIESVWR INTERNATIONAL, INC. 91392 04/17/2019

($14.02)Inv# 8085841800 DISCOUNTVWR INTERNATIONAL, INC. 91392 04/17/2019

Total for Check: 91392 $97,214.03 $1,388.40

$2,813.58 Inv# 230152070 LABORATORY SUPPLIESWATERS TECHNOLOGIES CORP. 91393 04/17/2019

$40.50 Inv# 230152070 freightWATERS TECHNOLOGIES CORP. 91393 04/17/2019

Total for Check: 91393 $46,646.32 $2,854.08



18Begin Date:

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Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$398.00 Inv# 6949964 BPO PEST & RODENT CONTROLWESTERN EXTERMINATOR

COMPANY

91394 04/17/2019

Total for Check: 91394 $6,778.00 $398.00

$1,652,343.70 4/17/2019Run Date: $1,652,343.70



1Begin Date:

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Page:End Date: 04/17/201904/11/2019

Date FYTDPurpose

$149.77 Inv# 546806875 TRANS/HANDLINGSIGMA-ALDRICH, INC. 802265 04/17/2019

$102.99 Inv# 547287622 LABORATORY SUPPLIESSIGMA-ALDRICH, INC. 802265 04/17/2019


$1,126.87 Inv# 546806875 Generated by reorder 1/14/19 3SIGMA-ALDRICH, INC. 802265 04/17/2019

Total for Check: 802265 $29,651.53 $1,395.10

$283.66 Inv# 6-469-38459 PackageDeliveryFEDERAL EXPRESS

CORPORATION

802266 04/17/2019


CORPORATION

802266 04/17/2019


CORPORATION

802266 04/17/2019


CORPORATION

802266 04/17/2019

Total for Check: 802266 $17,108.50 $1,643.96

$523.75 Inv# 4776399 LABORATORY SUPPLIESFISHER SCIENTIFIC CO. 802268 04/17/2019









$4.20 Inv# 8560625 SHIPPING-FUEL SURCHARGEFISHER SCIENTIFIC CO. 802268 04/17/2019

$1,004.85 Inv# 8803586 LABORATORY SUPPLIESFISHER SCIENTIFIC CO. 802268 04/17/2019




Total for Check: 802268 $152,635.90 $3,907.82

$892.47 Inv# ANVH363 Generated by reorder 3/7/19 9:IRON MOUNTAIN 802269 04/17/2019

$2,101.78 Inv# ANVH363. BPO Archival ServicesIRON MOUNTAIN 802269 04/17/2019

$804.16 Inv# ANVH363. BPO Archival ServicesIRON MOUNTAIN 802269 04/17/2019

Total for Check: 802269 $35,019.44 $3,798.41

$240.00 Inv# W9C1356-OCWD BPO FOR WQ ANALYSESWECK LABORATORIES, INC. 802270 04/17/2019



2Begin Date:

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Date FYTDPurpose




Total for Check: 802270 $26,199.50 $1,800.00

$87.92 Inv# 10841795 Lab-CO2, nitrogenWESTAIR GASES & EQUIPMENT 802271 04/17/2019

$29.91 Inv# 10841795 freightWESTAIR GASES & EQUIPMENT 802271 04/17/2019

$10.77 Inv# 10841795 hazardous materialWESTAIR GASES & EQUIPMENT 802271 04/17/2019

Total for Check: 802271 $46,114.06 $128.60

$12,673.89 4/16/2019Run Date: $12,673.89



1Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

($560.93)Inv# 2407366 Industrial Metal Supply Co. foINDUSTRIAL METAL SUPPLY CO. 89774 01/02/2019

Total for Check: 89774 $91.81 ($560.93)

($93.52)Inv# 49736 Steel to repair cover-GAP coveINDUSTRIAL METAL SUPPLY CO. 90494 02/20/2019

($214.96)Inv# 49736 Steel to repair cover-GAP coveINDUSTRIAL METAL SUPPLY CO. 90494 02/20/2019

Total for Check: 90494 $91.81 ($308.48)

$50.00 Inv# ADMIN/PROCESSFEE Admin/ProcessFeeORANGE COUNTY CLERK

RECORDER

91395 04/22/2019

Total for Check: 91395 $50.00 $50.00

$3,540.00 Inv# 1764278 Install New Motors for RO BuilACCO ENGINEERED SYSTEMS 91396 04/24/2019

Total for Check: 91396 $232,115.08 $3,540.00




$7.00 Inv# 895559 HANDLINGACCUSTANDARD, INC. 91397 04/24/2019

$5.00 Inv# 895559 COLD-PAKACCUSTANDARD, INC. 91397 04/24/2019

$1,575.00 Inv# 895708 LABORATORY SUPPLIESACCUSTANDARD, INC. 91397 04/24/2019



$5.00 Inv# 895708 COLD-PAKACCUSTANDARD, INC. 91397 04/24/2019

Total for Check: 91397 $19,774.74 $2,644.67

$3,390.00 Inv# 24057 November 2018 Quarterly CraneACE CRANE SERVICE, INC. 91398 04/24/2019

Total for Check: 91398 $13,223.02 $3,390.00

$69,600.00 Inv# OCWD-190325 2/27-3/13 Arundo removal @PradACS HABITAT MANAGEMENT 91399 04/24/2019

Total for Check: 91399 $183,931.00 $69,600.00

$485.06 Inv# 227216 BPO WASTE DISPOSALACT ENVIRO 91400 04/24/2019

$210.48 Inv# 229272 BPO WASTE DISPOSALACT ENVIRO 91400 04/24/2019

Total for Check: 91400 $14,567.29 $695.54

$432,548.27 Inv# 0605971 MAY2019 HealthInsurance May2019ACWA/JPIA 91401 04/24/2019

Total for Check: 91401 $4,726,997.35 $432,548.27

$35,229.26 Inv# 05-190229/1 3/27 antiscalant 40540 lbsAMERICAN WATER CHEMICAL, INC 91402 04/24/2019

Total for Check: 91402 $542,729.87 $35,229.26

$27.62 Inv# 0110196000APR19 3/14-4/12KWH0ANAHEIM, CITY OF 91405 04/24/2019




2Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

$21,869.69 Inv# 0110199000APR19 3/14-4/15KWH120000KWHANAHEIM, CITY OF 91405 04/24/2019

$246.80 Inv# 0110452300APR19 3/13-4/15HCF15ANAHEIM, CITY OF 91405 04/24/2019


$2,340.05 Inv# 0110562000APR19 3/13-4/15KWH1600ANAHEIM, CITY OF 91405 04/24/2019



$1,651.74 Inv# 0128277000MAR19 3/8-4/9KWH9200ANAHEIM, CITY OF 91405 04/24/2019

















$21.50 Inv# 0145552000MAR19 3/8-4/9KWHANAHEIM, CITY OF 91405 04/24/2019



Total for Check: 91405 $271,104.18 $32,155.17








3Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose







Total for Check: 91407 $42,838.33 $1,337.73

$3,337.00 Inv# 30986 sandblasting and epoxy coatingAREA PAINTING CONTRACTORS,

INC

91408 04/24/2019

Total for Check: 91408 $3,337.00 $3,337.00

$70.37 Inv# 714 974-3616APR19 4/11-5/10AT & T 91409 04/24/2019

Total for Check: 91409 $34,684.25 $70.37

$95.00 Inv# 10418 Lab Printer ServiceAUTOMATED INFORMATION

TECHNOLOGY

91410 04/24/2019

Total for Check: 91410 $190.00 $95.00

$4.06 Inv# 3/29/19 TRAVEL 3/29 Fullerton SAWPA OWOWAhmad Zahra 91411 04/24/2019

$179.80 Inv# MARCH 2019 TRAVEL Mar19 OCWD Various

Meetings

Ahmad Zahra 91411 04/24/2019

Total for Check: 91411 $183.86 $183.86

$33.94 Inv# SOP235430 HOSE ASSEMBLIESBAY CITY EQUIPMENT INDUSTRIES 91412 04/24/2019

$19.36 Inv# SOP235430 HOSE ASSEMBLIESBAY CITY EQUIPMENT INDUSTRIES 91412 04/24/2019

$7.50 Inv# SOP235430 SHIPPING AND HANDLINGBAY CITY EQUIPMENT INDUSTRIES 91412 04/24/2019

Total for Check: 91412 $60.80 $60.80

$30,902.01 Inv# 19-24235.7 F.Retention (GBM-2018-2)BC2 ENVIRONMENTAL, LLC 91413 04/24/2019

$4,497.85 Inv# 19-24235.7 F.Retention (GBM-2018-2)BC2 ENVIRONMENTAL, LLC 91413 04/24/2019

$475.00 Inv# 19-24235.7 F.Retention (GBM-2018-2)BC2 ENVIRONMENTAL, LLC 91413 04/24/2019

$20,775.05 Inv# CHANGE ORDER #3 REDUCTION GBM-2018-2

c.o.#2 balance

BC2 ENVIRONMENTAL, LLC 91413 04/24/2019

($20,775.05)Inv# CHANGE ORDER #3 REDUCTION GBM-2018-2

c.o.#3

BC2 ENVIRONMENTAL, LLC 91413 04/24/2019

Total for Check: 91413 $741,841.95 $35,874.86

$9,530.85 Inv# BPI936940 4/16 43820 lbs H.PeroxideBRENNTAG PACIFIC INC. 91414 04/24/2019


Total for Check: 91414 $854,926.18 $9,244.92



4Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

$16,118.50 Inv# 004 OCWD 1340 Mar19 constr.mgmt/GWRSFEBUTIER ENGINEERING, INC. 91415 04/24/2019

$45,463.50 Inv# 024 OCWD1168 Mar19

const.mgmt/Mid-Basin/Cen

BUTIER ENGINEERING, INC. 91415 04/24/2019

Total for Check: 91415 $909,662.00 $61,582.00

$20.30 Inv# 3/28/19 TRAVEL 3/28 Fountain Valley ISDOCBilodeau, Denis 91416 04/24/2019

$20.76 Inv# 3/29/19 TRAVEL 3/29 Fullerton SAWPA OWOWBilodeau, Denis 91416 04/24/2019


Meetings

Bilodeau, Denis 91416 04/24/2019

Total for Check: 91416 $7,149.51 $153.58

$121.85 Inv# 3/18/19 TRAVEL 3/18 SACTO Legislative MeetingBrandman, Jordan 91417 04/24/2019


Meetings

Brandman, Jordan 91417 04/24/2019

Total for Check: 91417 $566.42 $248.88

$425.00 Inv# 1440219 327924 M.OchoaCALCPA 91418 04/24/2019

Total for Check: 91418 $1,275.00 $425.00

$2,826.00 Inv# 0011256140 5179533CALIFORNIA NEWSPAPERS

PARTNERSHIP

91419 04/24/2019

Total for Check: 91419 $19,979.00 $2,826.00

$1,288.69 Inv# 01166444 LABORATORY SUPPLIESCAMBRIDGE ISOTOPE

LABORATORIES

91420 04/24/2019

$271.87 Inv# 01166444 LABORATORY SUPPLIESCAMBRIDGE ISOTOPE

LABORATORIES

91420 04/24/2019

$206.63 Inv# 01166444 LABORATORY SUPPLIESCAMBRIDGE ISOTOPE

LABORATORIES

91420 04/24/2019

$20.53 Inv# 01166444 TRANSPORTATIONCAMBRIDGE ISOTOPE

LABORATORIES

91420 04/24/2019

Total for Check: 91420 $12,665.32 $1,787.72

$198.35 Inv# RQJ8164 Replacement PrinterCDW GOVERNMENT, INC 91421 04/24/2019

Total for Check: 91421 $26,042.10 $198.35

$4,499.53 Inv# IN245711 Apr19 payroll serviceCERIDIAN HCM, INC. 91422 04/24/2019

Total for Check: 91422 $43,674.35 $4,499.53

$90.00 Inv# 40287 RECYCLING/WASTE SOLUTIONSCERTIFIED ENTERPRISES, INC. 91423 04/24/2019

Total for Check: 91423 $1,260.00 $90.00

$222,496.79 Inv# 566052 300 GLC EXCAVATORCOASTLINE EQUIPMENT

COMPANY, INC.

91424 04/24/2019



5Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose


COMPANY, INC.

91424 04/24/2019


COMPANY, INC.

91424 04/24/2019


COMPANY, INC.

91424 04/24/2019

Total for Check: 91424 $383,360.11 $381,966.51

$250.00 Inv# 1127435 EQUIP. SERVICECULLIGAN OF SANTA ANA 91425 04/24/2019

Total for Check: 91425 $2,396.97 $250.00

$188.00 Inv# ID#000052843I 04/19 P.BARRERACWEA 91426 04/24/2019

Total for Check: 91426 $4,062.00 $188.00

$102.00 Inv# ID#000037013I CERT S.BRANDONCWEA 91427 04/24/2019

Total for Check: 91427 $4,062.00 $102.00

$30.00 Inv# 4/12/19 TRAVEL 4/12 Irvine OCWADadakis, Jason 91428 04/24/2019

$177.03 Inv# 4/15-16/19 WRF REIMB 4/15-16/19 WRF

(reimburse)

Dadakis, Jason 91428 04/24/2019

Total for Check: 91428 $2,389.69 $207.03

$322.17 Inv# 4/10/19 IPAD REPAIR 4/10/19 IPAD repairDunivin, William R. 91429 04/24/2019

Total for Check: 91429 $322.17 $322.17

$11,000.49 Inv# 205879-0002/205879-0003 ROCK TRUCK

RENTAL

ECCO EQUIPMENT CORP. 91430 04/24/2019

$8,299.51 Inv# 205880-0002/205880-0003 ROCK TRUCK

RENTAL


$2,048.84 Inv# 205880-0002/205880-0003 R ROCK TRUCK

RENTAL


Total for Check: 91430 $48,208.84 $21,348.84

$7,500.00 Inv# 2410 Mar19 legis.support/D.C.ENS RESOURCES, INC. 91431 04/24/2019

Total for Check: 91431 $76,226.92 $7,500.00

$710.00 Inv# 4400013179 NEW BPO FOR WQ ANALYSESTESTAMERICA LABORATORIES

INC.

91432 04/24/2019


INC.

91432 04/24/2019


INC.

91432 04/24/2019


INC.

91432 04/24/2019



6Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose


INC.

91432 04/24/2019

$1,410.00 Inv# 4400013992 NEW BPO FOR WQ ANALYSESTESTAMERICA LABORATORIES

INC.

91432 04/24/2019

Total for Check: 91432 $41,565.50 $4,240.00

$1,164.18 Inv# 24554 FINANCIAL ADVISORY SERVICESFIELDMAN, ROLAPP & ASSOCIATES 91433 04/24/2019

Total for Check: 91433 $27,834.87 $1,164.18


Total for Check: 91434 $36,231.09 $85.40

$487.00 Inv# 900497A BPO RADIOACTIVITY ANALYSISFRUIT GROWERS LABORATORY

INC

91435 04/24/2019

$512.00 Inv# 900745A BPO RADIOACTIVITY ANALYSISFRUIT GROWERS LABORATORY

INC

91435 04/24/2019

Total for Check: 91435 $31,796.00 $999.00

$3,130.00 Inv# 19-172S Underground Tank RepairFUEL SERV 91436 04/24/2019

Total for Check: 91436 $12,730.00 $3,130.00

$116.00 Inv# 3/13-14/19 JPIA TRAINING 3/13-14 JPIA

Training/Claremon

Flint, Joseph 91437 04/24/2019

Total for Check: 91437 $644.19 $116.00

$287.01 Inv# 010491558 OPEN NEW BPOGANAHL LUMBER COMPANY 91438 04/24/2019

$2.66 Inv# 010491558 LumberTaxGANAHL LUMBER COMPANY 91438 04/24/2019


$2.99 Inv# 010491690 Lumber TaxGANAHL LUMBER COMPANY 91438 04/24/2019


Total for Check: 91438 $2,271.77 $615.23

$3,000.00 Inv# 010319 CWEF - GEMS/PRESENTERKEVIN BARNES / GEMS INC. 91439 04/24/2019

Total for Check: 91439 $3,000.00 $3,000.00

$521.94 Inv# 114076926 C4 RENO - GLS WHITE BOARDGLOBAL EQUIPMENT COMPANY 91440 04/24/2019

$260.97 Inv# 114076926 S&HGLOBAL EQUIPMENT COMPANY 91440 04/24/2019

Total for Check: 91440 $1,388.80 $782.91


$173.24 Inv# 9114246805 Water FiltersGRAINGER INC. 91442 04/24/2019

$79.03 Inv# 9114246805 Water FiltersGRAINGER INC. 91442 04/24/2019

$66.65 Inv# 9114246813 I&E Shop Consumables and SupplGRAINGER INC. 91442 04/24/2019



7Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose







$1,637.35 Inv# 9116163305 Generated by reorder 3/14/19 1GRAINGER INC. 91442 04/24/2019



($50.82)Inv# 9118166264 CM Ref#: 9117119447GRAINGER INC. 91442 04/24/2019

Total for Check: 91442 $105,547.79 $2,266.30

$843.87 Inv# 3/28-29/19 TRAVEL 3/28-29 SACTO ACWA BoardGreen, Catherine T. 91443 04/24/2019


Meetings

Green, Catherine T. 91443 04/24/2019

Total for Check: 91443 $6,487.99 $941.89

$11,538.11 Inv# 89531 Mar19 wo#4 Burris Basin, BoatHABITAT WEST 91444 04/24/2019

$2,664.64 Inv# 89534 3/28-29 weedingHABITAT WEST 91444 04/24/2019

Total for Check: 91444 $151,943.97 $14,202.75

$39.69 Inv# 11396887 Lab SuppliesHACH COMPANY 91445 04/24/2019

$19.75 Inv# 11396887 FreightHACH COMPANY 91445 04/24/2019

$15.17 Inv# 11396887 Lab SuppliesHACH COMPANY 91445 04/24/2019

$1,043.68 Inv# 11400591 LABORATORY SUPPLIESHACH COMPANY 91445 04/24/2019

$1,029.33 Inv# 11400591 LABORATORY SUPPLIESHACH COMPANY 91445 04/24/2019

$700.13 Inv# 11400591 LABORATORY SUPPLIESHACH COMPANY 91445 04/24/2019

$673.17 Inv# 11400591 LABORATORY SUPPLIESHACH COMPANY 91445 04/24/2019

$88.84 Inv# 11400591 FreightHACH COMPANY 91445 04/24/2019

Total for Check: 91445 $37,851.88 $3,609.76

$1,247.91 Inv# 01356305 LABORATORY SUPPLIESHAMILTON COMPANY 91446 04/24/2019

$478.50 Inv# 01356305 LABORATORY SUPPLIESHAMILTON COMPANY 91446 04/24/2019

$303.41 Inv# 01356305 LABORATORY SUPPLIESHAMILTON COMPANY 91446 04/24/2019

$14.26 Inv# 01356305 Freight UPSHAMILTON COMPANY 91446 04/24/2019

Total for Check: 91446 $4,173.02 $2,044.08

$215.50 Inv# INV-67252 NAME PLATE - BOD MAPHB DIGITAL ARTS & BLUEPRINT 91447 04/24/2019



8Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

$16.17 Inv# INV-67252 NAME PLATE - BOD MAPHB DIGITAL ARTS & BLUEPRINT 91447 04/24/2019

Total for Check: 91447 $1,707.92 $231.67

$2.15 Inv# 3/14/19 TRAVEL SARCCUP 3/14 Riverside

SARCCUP Meeting

Hutchinson, Adam 91448 04/24/2019

$2.45 Inv# 3/28/19 TRAVEL 3/28 Riverside SARCCUP

Meeting

Hutchinson, Adam 91448 04/24/2019

$4.60 Inv# 4/2/19 TRAVEL 4/2 Riverside SARCCUP MeetingHutchinson, Adam 91448 04/24/2019

Total for Check: 91448 $884.20 $9.20

$300.00 Inv# IN037904 LABORATORY SUPPLIESIBIS SCIENTIFIC, INC. 91449 04/24/2019

$10.38 Inv# IN037904 Fedex GroundIBIS SCIENTIFIC, INC. 91449 04/24/2019

Total for Check: 91449 $610.38 $310.38

$8,645.00 Inv# 02-19-21 Feb19 Alamitos GAP grndwtrINTERA INCORPORATED 91450 04/24/2019

Total for Check: 91450 $72,922.50 $8,645.00

$5,542.86 Inv# 907125 Generated by reorder 2/5/19 7:IRVINE PIPE & SUPPLY 91451 04/24/2019


Total for Check: 91451 $42,636.12 $5,432.00

$35.01 Inv# 257936216 COPY CHARGESKONICA MINOLTA BUSINESS

SOLUTIONS USA IN

91452 04/24/2019

Total for Check: 91452 $290.67 $35.01

$40.00 Inv# 2/23-3/22/19 STIPEND 2/23-3/22/19 phone stipendKathryn Demesa 91453 04/24/2019

Total for Check: 91453 $1,190.74 $40.00

$1,188.00 Inv# 5283 NBGPP NCP Feb19 legal/NBGPP NCPLARSON O'BRIEN LLP 91454 04/24/2019

Total for Check: 91454 $13,859.43 $1,188.00





Total for Check: 91455 $668,029.55 $23,536.47

$1,360.30 Inv# 7162 3/28 leadership consultingLILLESTRAND LEADERSHIP

CONSULTING

91456 04/24/2019

Total for Check: 91456 $31,783.10 $1,360.30

$94.50 Inv# 12439 COM LEG BPO FOR LUCCI'SLUCCI'S DELI BAKERY 91457 04/24/2019

$20.00 Inv# 12439 COM LEG DeliveryLUCCI'S DELI BAKERY 91457 04/24/2019

$94.50 Inv# 12440 BPO FOR LUCCI'SLUCCI'S DELI BAKERY 91457 04/24/2019



9Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

$20.00 Inv# 12440 DeliveryLUCCI'S DELI BAKERY 91457 04/24/2019

$125.30 Inv# 12442 GWRS CTE BPO FOR LUCCI'SLUCCI'S DELI BAKERY 91457 04/24/2019

$20.00 Inv# 12442 GWRS CTE DeliveryLUCCI'S DELI BAKERY 91457 04/24/2019

$405.00 Inv# 12449 WACO BPO FOR LUCCI'SLUCCI'S DELI BAKERY 91457 04/24/2019

$20.00 Inv# 12449 WACO DeliveryLUCCI'S DELI BAKERY 91457 04/24/2019

Total for Check: 91457 $8,489.20 $799.30

$396.20 Inv# 30062 V-8 Bat RpairMAURER MARINE INC 91459 04/24/2019












Total for Check: 91459 $514.60 $514.60









Total for Check: 91460 $6,554.11 $422.98


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019



10Begin Date:

Check Register


Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose


COMPANY

91464 04/24/2019

$130.69 Inv# 92218444 PARTS CAGEMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019



11Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose


COMPANY

91464 04/24/2019

$214.20 Inv# 92429765 Ladder and oil sight indicatorMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019

$158.95 Inv# 92429765 Ladder and oil sight indicatorMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019

$29.25 Inv# 92429765 ShipingMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019

$309.29 Inv# 92487797 12 Volt Lead Acid Sealed LargeMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019

$97.07 Inv# 92487797 12 Volt Lead Acid Sealed LargeMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019

$21.55 Inv# 92487797 ShippimgMCMASTER-CARR SUPPLY

COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019


COMPANY

91464 04/24/2019

Total for Check: 91464 $28,184.88 $1,877.76

$47.98 Inv# 4/1/19 TRAVEL 4/1 Fountain Valley Mtg w/AnahMarkus, Michael R. 91465 04/24/2019

$474.63 Inv# 4/5/19 TRAVEL 4/5 D.C. AMWA ConferenceMarkus, Michael R. 91465 04/24/2019

Total for Check: 91465 $13,250.85 $522.61

$1,181.28 Inv# EDUCATION REIMB EducationReimb. EJMMarshall, Erin 91466 04/24/2019

Total for Check: 91466 $3,363.99 $1,181.28

$99.85 Inv# 456556 BPO AUTO PARTS & SUPPLIESNAPA/ORANGE COUNTY AUTO

PARTS

91468 04/24/2019

($2.00)Inv# 456556 DiscountNAPA/ORANGE COUNTY AUTO

PARTS

91468 04/24/2019


PARTS

91468 04/24/2019



12Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019

$652.49 Inv# 458380 RO: TOOL BOX FOR AUTO SHOPNAPA/ORANGE COUNTY AUTO

PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019


PARTS

91468 04/24/2019

Total for Check: 91468 $9,690.23 $980.40


Meetings

Nguyen, Dina 91469 04/24/2019

Total for Check: 91469 $312.48 $40.60

$32.50 Inv# 292295148001 OFFICE SUPPLIESOFFICE DEPOT, INC. 91470 04/24/2019

$10.02 Inv# 292295148001 OFFICE SUPPLIESOFFICE DEPOT, INC. 91470 04/24/2019

Total for Check: 91470 $803.15 $42.52

$3,360.94 Inv# 2648395 2/27 bill error, cm #2670184OLIN CHLOR ALKALI PRODUCTS

AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019



13Begin Date:

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Date FYTDPurpose


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019

$907.46 Inv# 2662767 3/29 4918 gal s.hypochloriteOLIN CHLOR ALKALI PRODUCTS

AND VINYLS

91472 04/24/2019

($3,360.94)Inv# 2670184 credit for #2648395OLIN CHLOR ALKALI PRODUCTS

AND VINYLS

91472 04/24/2019


AND VINYLS

91472 04/24/2019

Total for Check: 91472 $1,694,072.75 $50,882.65

$393.59 Inv# S6134284.001 Generated by reorder 4/9/19 2:ONESOURCE DISTRIBUTORS INC. 91473 04/24/2019



$9.24 Inv# S6134284.001 S&HONESOURCE DISTRIBUTORS INC. 91473 04/24/2019

($8.40)Inv# S6134284.001 DiscountONESOURCE DISTRIBUTORS INC. 91473 04/24/2019

Total for Check: 91473 $100,049.11 $913.85

$1,050.57 Inv# 0239390-IN Grease Pump for T-125ORANGE COAST PETROLEUM

EQUIPT.

91474 04/24/2019



14Begin Date:

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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

$19.86 Inv# 0239390-IN FreightORANGE COAST PETROLEUM

EQUIPT.

91474 04/24/2019

($21.41)Inv# 0239390-IN DiscountORANGE COAST PETROLEUM

EQUIPT.

91474 04/24/2019

Total for Check: 91474 $1,746.53 $1,049.02

$2,795.10 Inv# APRIL 2019 OCEA Dues April 2019ORANGE COUNTY EMPLOYEE

ASSOCIATION

91475 04/24/2019

Total for Check: 91475 $31,685.46 $2,795.10

$1,172.63 Inv# PW190702 MidBsnProj/OCPubWrksORANGE COUNTY

TREASURER-TAX COLLECTOR

91476 04/24/2019

Total for Check: 91476 $91,918.73 $1,172.63

$288.23 Inv# 1121 BPO CATERING SERVICESORANGE TREE DELI 91477 04/24/2019

$155.70 Inv# 3252 IRWM Planning MeetingORANGE TREE DELI 91477 04/24/2019

Total for Check: 91477 $443.93 $443.93

$2,876.44 Inv# 1337237 PLANT CHEMICALSPOLYDYNE INC. 91478 04/24/2019

Total for Check: 91478 $27,838.92 $2,876.44

$40.00 Inv# 1/24-2/23/19 STIPEND 1/24-2/23/19 phone stipendPhillips, Robert 91479 04/24/2019

$40.00 Inv# 10/24-11/23/18 STIPEND 10/24-11/23/18 phone

stipend

Phillips, Robert 91479 04/24/2019

$40.00 Inv# 11/24-12/23/18 STIPEND 11/24-12/23/18 phone

stipend


$40.00 Inv# 12/24/18-1/23/19 STIPEND 12/24/18-1/23/19

phone stipend


$40.00 Inv# 2/24-3/23/19 STIPEND 2/24-3/23/19 phone stipendPhillips, Robert 91479 04/24/2019

$116.00 Inv# 3/13-14/19 JPIA TRAINING 3/13-14 JPIA

Training/Claremon


Total for Check: 91479 $1,267.70 $316.00


Total for Check: 91480 $72,237.01 $1,491.59

$174.22 Inv# PC830370355 BPO EQUIPMENT & SUPPLIESQUINN COMPANY 91481 04/24/2019

Total for Check: 91481 $78,496.55 $174.22

$40.00 Inv# 3/2-4/1/19 STIPEND 3/2-4/1/19 phone stipendRaley, Robert 91482 04/24/2019

Total for Check: 91482 $400.00 $40.00

$661.32 Inv# 3/17-19/19 TRAVEL 3/17-19 Garden Grove

WateReuse

Rowe, Kelly 91483 04/24/2019



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Page:End Date: 04/24/201904/18/2019

Date FYTDPurpose

$3.48 Inv# 3/28/19 TRAVEL 3/28 Fountain Valley ISDOCRowe, Kelly 91483 04/24/2019

$32.36 Inv# 3/29/19 TRAVEL 3/29 Fullerton SAWPA OWOWRowe, Kelly 91483 04/24/2019


Meetings

Rowe, Kelly 91483 04/24/2019

Total for Check: 91483 $1,725.44 $745.88

$702.55 Inv# 79420765 Parts Washer ChemicalSAFETY-KLEEN CORPORATION 91484 04/24/2019



Total for Check: 91484 $2,180.93 $726.13

$5,040.00 Inv# 1363 Mar19 wo#22 Santiago B.SaddleSAGECREST PLANNING AND

ENVIRONMENTAL

91485 04/24/2019

Total for Check: 91485 $72,492.95 $5,040.00

$1,888.00 Inv# OC 20 1900414 BPO TEMPORARY LABORSANDWOOD ENTERPRISES INC. 91486 04/24/2019

$768.00 Inv# OC 20 1900415 BPO TEMPORARY LABORSANDWOOD ENTERPRISES INC. 91486 04/24/2019

Total for Check: 91486 $15,264.00 $2,656.00

$2,591.47 Inv# 2019-26 NATURAL RESOURCE SERV.SANTA ANA WATERSHED ASSOC. 91487 04/24/2019

Total for Check: 91487 $126,030.19 $2,591.47

$5,891.46 Inv# 1403774-IN BPO BULK UNLEADED FUELSC FUELS 91488 04/24/2019

($49.97)Inv# 1403774-IN DISCOUNTSC FUELS 91488 04/24/2019

Total for Check: 91488 $124,932.43 $5,841.49

$6,677.96 Inv# W6398954 Mar19 security guard serviceSECURITAS SECURITY SERVICES

USA, INC.

91489 04/24/2019

Total for Check: 91489 $65,224.91 $6,677.96

$74.50 Inv# 507-6 OCWD 4/2 BPO BOTTLES WATER SERVICESIERRA SPRINGS/DS WATERS 91490 04/24/2019

$59.50 Inv# 507-6OCWD 4/16 BPO BOTTLED WATER

SERVICE

SIERRA SPRINGS/DS WATERS 91490 04/24/2019

Total for Check: 91490 $1,474.00 $134.00


($4.74)Inv# 90305625-001 discountSITEONE LANDSCAPE SUPPLY 91491 04/24/2019


($3.12)Inv# 90344379-001 DISCOUNTSITEONE LANDSCAPE SUPPLY 91491 04/24/2019

Total for Check: 91491 $1,610.84 $418.28

$223,988.46 Inv# 3-003-7100-85APR19 3/5-4/3KWH2791333SOUTHERN CALIFORNIA EDISON

CO.

91492 04/24/2019



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Date FYTDPurpose

$14.28 Inv# 3-017-7474-01APR19 3/15-4/15KWHSOUTHERN CALIFORNIA EDISON

CO.

91492 04/24/2019


CO.

91492 04/24/2019


CO.

91492 04/24/2019

Total for Check: 91492 $5,495,629.77 $224,331.34

$141.37 Inv# 00567044 BPO FORKLIFT SERVICESOUTHWEST MATERIAL HANDLING

INC.

91493 04/24/2019

Total for Check: 91493 $13,700.62 $141.37

$900.50 Inv# 1490162 Thru 3/22 geotech/5 Coves-LincSTANTEC CONSULTING INC. (SCI) 91494 04/24/2019

Total for Check: 91494 $96,789.34 $900.50

$520.14 Inv# 3409082526 WAREHOUSE SUPPLIES - CHAIRSSTAPLES ADVANTAGE 91495 04/24/2019



$461.58 Inv# 3409158064 Generated by reorder 3/5/19 11STAPLES ADVANTAGE 91495 04/24/2019






$167.65 Inv# 3409158066 SCADA Portable USB ModemSTAPLES ADVANTAGE 91495 04/24/2019

Total for Check: 91495 $38,717.37 $2,522.57

$736.00 Inv# 12-ORA057-0010-03 LEASE

NO.12-ORA057-0010-03

STATE OF CALIFORNIA 91496 04/24/2019

$736.00 Inv# 12-ORA057-0010-03 FEB19 LEASE NO.

12-ORA057-0010-03


$736.00 Inv# 12-ORA057-0010-03 MAR19 LEASE

NO.12-ORA057-0010-03


$736.00 Inv# 12-ORA057-0010-03 MAY19 12-ORA057-0010-03STATE OF CALIFORNIA 91496 04/24/2019

Total for Check: 91496 $7,360.00 $2,944.00

$1,400.00 Inv# SW-0170850 ID#8 30I022673 04/01-03/31/20STATE WATER RESOURCES

CONTROL BOARD

91497 04/24/2019

Total for Check: 91497 $20,935.84 $1,400.00

$6.38 Inv# 3/18/19 TRAVEL 3/18 Garden Grove WateReuseSarmiento, Vincent 91498 04/24/2019



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Date FYTDPurpose

$110.14 Inv# 3/24-29/19 TRAVEL 3/24-29 D.C. Legislative MeetiSarmiento, Vincent 91498 04/24/2019


Meetings

Sarmiento, Vincent 91498 04/24/2019

Total for Check: 91498 $448.42 $157.12

$40.00 Inv# 1/29-2/28/19 STIPEND 1/29-2/28/19 phone stipendScott-Roberts, Sandy 91499 04/24/2019

$40.00 Inv# 3/1-28/19 STIPEND 3/1-28/19 phone stipendScott-Roberts, Sandy 91499 04/24/2019

$30.00 Inv# 4/17/19 TRAVEL 4/17 Irvine OCWAScott-Roberts, Sandy 91499 04/24/2019

Total for Check: 91499 $1,449.08 $110.00

$59.29 Inv# 1505404112019TAB ANSWER NETWORK CALL

CENTER

91500 04/24/2019

Total for Check: 91500 $597.12 $59.29

$27,580.18 Inv# 8782CA0015 SCOPING STUDYTHE REGENTS OF UNIVERSITY OF

CALIFORNIA

91501 04/24/2019

$3,068.39 Inv# 8782CA0015 SCOPING STUDYTHE REGENTS OF UNIVERSITY OF

CALIFORNIA

91501 04/24/2019

Total for Check: 91501 $207,150.00 $30,648.57

$125.10 Inv# 0410454041219 BPO CABLE TV SERVICETIME WARNER COMMUNICATIONS 91502 04/24/2019

Total for Check: 91502 $14,788.22 $125.10

$2,585.00 Inv# 11075545 PO for Titan for Work DoneTITAN ENVIRONMENTAL

SOLUTIONS INC

91503 04/24/2019

Total for Check: 91503 $2,585.00 $2,585.00

$400.00 Inv# 300606 LABORATORY SUPPLIESTORONTO RESEARCH

CHEMICALS, INC.

91504 04/24/2019

$50.00 Inv# 300606 SHIPPING&INSURANCETORONTO RESEARCH

CHEMICALS, INC.

91504 04/24/2019

Total for Check: 91504 $4,348.00 $450.00

$3,398.01 Inv# M60201 ANNUAL LANDSCAPE MAINTTROPICAL PLAZA NURSERY, INC. 91505 04/24/2019

Total for Check: 91505 $43,066.67 $3,398.01

$263.13 Inv# 416726 BPO TRUCK PARTSTRUCPARCO 91506 04/24/2019

Total for Check: 91506 $5,713.30 $263.13


Meetings

Tri Ta 91507 04/24/2019

Total for Check: 91507 $1,258.45 $81.20

$1,402.47 Inv# 115251491-0 INTERNET SERVICESTPx COMMUNICATIONS 91508 04/24/2019

$437.11 Inv# 115251491-0 INTERNET SERVICESTPx COMMUNICATIONS 91508 04/24/2019



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Date FYTDPurpose

Total for Check: 91508 $19,950.01 $1,839.58

$1,154.67 Inv# 1146632 03/01-03/31/19UNION BANK 91509 04/24/2019

Total for Check: 91509 $28,827.37 $1,154.67

$132.21 Inv# 0000X81601159 upsUNITED PARCEL SERVICE 91510 04/24/2019

Total for Check: 91510 $2,279.09 $132.21





Total for Check: 91511 $266,583.06 $7,195.94

$39.50 Inv# 201903008258 BPO BACKGROUND CHECKUNIVERSAL BACKGROUND

SCREENING INC

91512 04/24/2019

Total for Check: 91512 $2,492.45 $39.50





Total for Check: 91513 $85,436.13 $1,605.71

$1,184.00 Inv# 8295 ON-CALL FENCE REPAIRVALLEY CITIES/GONZALES FENCE

INC.

91514 04/24/2019

Total for Check: 91514 $14,865.00 $1,184.00

$585.63 Inv# 8085899413 SUPPLIESVWR INTERNATIONAL, INC. 91516 04/24/2019

$24.15 Inv# 8085899413 freightVWR INTERNATIONAL, INC. 91516 04/24/2019

($6.10)Inv# 8085899413 discountVWR INTERNATIONAL, INC. 91516 04/24/2019

$122.24 Inv# 8085918727 LABORATORY SUPPLIESVWR INTERNATIONAL, INC. 91516 04/24/2019



($2.54)Inv# 8085918727 discountVWR INTERNATIONAL, INC. 91516 04/24/2019

$1,054.01 Inv# 8085959996 Generated by reorder 4/4/19 10VWR INTERNATIONAL, INC. 91516 04/24/2019

$870.54 Inv# 8085959996 Generated by reorder 4/4/19 10VWR INTERNATIONAL, INC. 91516 04/24/2019






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Date FYTDPurpose




$124.02 Inv# 8085959996 FREIGHTVWR INTERNATIONAL, INC. 91516 04/24/2019


($43.07)Inv# 8085959996 DISCOUNTVWR INTERNATIONAL, INC. 91516 04/24/2019

Total for Check: 91516 $102,333.23 $5,119.20

$1,173.36 Inv# 001-JUN18CAP (APR18) Apr18 Cap.Chrg 35.12af

@$33.41

WATER REPLENISHMENT

DISTRICT

91517 04/24/2019

$307.37 Inv# 001-JUN18CAP (MAR18) Mar18 Cap.Chrg 9.2af

@$33.41

WATER REPLENISHMENT

DISTRICT

91517 04/24/2019

$137.65 Inv# 001-JUN18CAP (MAY18) May18 Cap.Chrg 4.12 af

@$33.41

WATER REPLENISHMENT

DISTRICT

91517 04/24/2019

Total for Check: 91517 $58,323.51 $1,618.38


Meetings

Yoh, Roger 91518 04/24/2019

Total for Check: 91518 $687.27 $35.96

$52,965.56 Inv# APRIL 24,19 #6527 Apr.24,19 PR#09 #6527WELLS FARGO BANK 976773 04/23/2019

Total for Check: 976773 $17,728,588.96 $52,965.56

$735,355.09 Inv# APRIL 24,19 #6911 Apr.24,19 PR39 #6911WELLS FARGO BANK 976774 04/23/2019

Total for Check: 976774 $17,728,588.96 $735,355.09

$1,962.90 Inv# APRIL 24,19 ABF GARN Apr.24,19 PR#9 GarnABFWELLS FARGO BANK 976775 04/23/2019

Total for Check: 976775 $17,728,588.96 $1,962.90

$207,151.12 Inv# APRIL 24, 2019 April 24,19 PR#9 401aPRUDENTIAL RETIREMENT

SERVICE

976776 04/24/2019

Total for Check: 976776 $4,719,109.61 $207,151.12

$54,788.42 Inv# APRIL 24, 2019 Apr.24,19 PR#9 457bPRUDENTIAL RETIREMENT 976777 04/24/2019

Total for Check: 976777 $1,286,133.38 $54,788.42

$1,815.88 Inv# CK#2140 PR#10 Final PR CK#2140Young, Jeannie 976778 04/24/2019

Total for Check: 976778 $22,817.63 $1,815.88

$21,001.75 Inv# CK#2141 PR#10 Final PR CK#2141Young, Jeannie 976779 04/24/2019

Total for Check: 976779 $22,817.63 $21,001.75

$2,649,320.94 4/24/2019Run Date: $2,649,320.94



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Date FYTDPurpose

$131.23 Inv# 11907661 BPO FIRST AID CABINETSALTA FOODCRAFT 802272 04/24/2019

$169.27 Inv# 51906322 GM OfficeALTA FOODCRAFT 802272 04/24/2019

$1,194.53 Inv# 51906366 GM OfficeALTA FOODCRAFT 802272 04/24/2019

Total for Check: 802272 $13,050.94 $1,495.03

$600.00 Inv# L0443138 BPO WATER SAMPLE ANALYSISEUROFINS EATON ANALYTICAL

INC

802273 04/24/2019

$600.00 Inv# L0443138 BPO WATER SAMPLE ANALYSISEUROFINS EATON ANALYTICAL

INC

802273 04/24/2019

Total for Check: 802273 $49,560.00 $1,200.00

$8,156.25 Inv# 903942611 PLANT CHEMICALEVOQUA WATER TECHNOLOGIES,

LLC

802274 04/24/2019

$2,033.64 Inv# 903949298 E01 Memsap PartsEVOQUA WATER TECHNOLOGIES,

LLC

802274 04/24/2019

$2,033.62 Inv# 903949298 E01 Memsap PartsEVOQUA WATER TECHNOLOGIES,

LLC

802274 04/24/2019

Total for Check: 802274 $568,919.59 $12,223.51


CORPORATION

802275 04/24/2019

$802.50 Inv# 6-504-92852 Package DeliveryFEDERAL EXPRESS

CORPORATION

802275 04/24/2019

Total for Check: 802275 $18,089.51 $981.01

($328.13)Inv# 0147568 CM ref#: 8560625FISHER SCIENTIFIC CO. 802277 04/24/2019

$885.57 Inv# 8960324 Generated by reorder 3/14/19 3FISHER SCIENTIFIC CO. 802277 04/24/2019

$4.20 Inv# 8960324 Shipping-Fuel SurchargeFISHER SCIENTIFIC CO. 802277 04/24/2019







$1,121.56 Inv# 9183831 LABORATORY SUPPLIESFISHER SCIENTIFIC CO. 802277 04/24/2019



$4.20 Inv# 9183832 Shipping-Fuel surchargeFISHER SCIENTIFIC CO. 802277 04/24/2019




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Date FYTDPurpose

Total for Check: 802277 $157,176.67 $4,540.77

$505.84 Inv# 201840354 BPO Archival ServicesIRON MOUNTAIN 802278 04/24/2019

Total for Check: 802278 $35,525.28 $505.84





Total for Check: 802279 $30,057.45 $405.92

$24.00 Inv# 382373 LABORATORY SUPPLIESSPEX CERTIPREP, LLC 802280 04/24/2019

$58.40 Inv# 382757 LABORATORY SUPPLIESSPEX CERTIPREP, LLC 802280 04/24/2019

Total for Check: 802280 $9,147.20 $82.40

$258.06 Inv# 9020884553 LABORATORY SUPPLIESTHERMO ELECTRON NORTH

AMERICAL LLC

802281 04/24/2019

$10.88 Inv# 9020884553 SHIPPING/HANDLINGTHERMO ELECTRON NORTH

AMERICAL LLC

802281 04/24/2019

Total for Check: 802281 $100,460.55 $268.94












Total for Check: 802283 $29,034.50 $2,835.00

$100.75 Inv# 80243253 Mar19 cylinder rental-Wtr.ProdWESTAIR GASES & EQUIPMENT 802284 04/24/2019

$232.50 Inv# 80243254 Mar19 cylinder rental-RechargeWESTAIR GASES & EQUIPMENT 802284 04/24/2019

$618.00 Inv# 80243255A Mar19 cylinder rental-LabWESTAIR GASES & EQUIPMENT 802284 04/24/2019

$213.11 Inv# 80243255B Mar19 cylinder rental-Wtr.ProdWESTAIR GASES & EQUIPMENT 802284 04/24/2019

$15.50 Inv# 80243255B Mar19 cylinder rental-HydrogeoWESTAIR GASES & EQUIPMENT 802284 04/24/2019



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Date FYTDPurpose

$7.75 Inv# 80243255C Mar19 cylinder rental-RechargeWESTAIR GASES & EQUIPMENT 802284 04/24/2019

$254.38 Inv# 80243256 Mar19 cylinder rental-LabWESTAIR GASES & EQUIPMENT 802284 04/24/2019

Total for Check: 802284 $47,556.05 $1,441.99

$25,980.41 4/24/2019Run Date: $25,980.41

1

MINUTES OF MEETING BOARD OF DIRECTORS, ORANGE COUNTY WATER DISTRICT

April 3, 2019, 5:30 p.m.

President Sarmiento called to order the April 3, 2019 regular meeting of the Orange County Water District Board of Directors at 5:30 p.m. in the Boardroom at the District office. Following the Pledge of Allegiance to the Flag, the District Secretary called the roll and reported a quorum as follows.

Directors Denis Bilodeau Jordan Brandman Cathy Green Dina Nguyen (absent) Kelly Rowe Vicente Sarmiento Stephen Sheldon (absent) Tri Ta Roger Yoh Ahmad Zahra

Staff Michael R. Markus, General Manager Joel Kuperberg, General Counsel Janice Durant, District Secretary

CONSENT CALENDAR

The Consent Calendar was approved upon motion by Director Green, seconded by Director Rowe and carried as follows [8-0], with Director Brandman abstaining on Item No. 1, Cash Disbursements-items relating to Butier Engineering, due to a prior business relationship, and Orange County Conservation Corps due to a current business relationship. Ayes: Bilodeau, Brandman, Green, Rowe, Sarmiento, Ta, Whitaker, Yoh Abstain: Brandman – partial abstention on Item No. 1 Absent: Nguyen, Sheldon

CONSENT CALENDAR

1. Approval of Cash Disbursements

MOTION NO. 19-49 APPROVING CASH DISBURSEMENTS

Payment of bills for the period March 14, 2019 through March 27, 2019 in the total amount of $11,445,037.03 is ratified and approved.

4/03/2019

2

2. Approval of Minutes of Board Meeting

MOTION NO. 19-50 APPROVING MINUTES OF BOARD MEETING

The minutes of the Board of Directors meeting held March 6, 2019 are approved as presented. 3. 2019 Board Committee and Outside Agency Assignments

MOTION NO. 19-51 APPROVING 2019 COMMITTEE AND OUTSIDE AGENCY ASSIGNMENTS

The 2019 Committee and Outside Agency assignments as recommended by the Board President are hereby approved as presented. ITEMS RECOMMENDED FOR APPROVAL AT RETIREMENT COMMITTEE MEETING HELD MARCH 26, 2019 4. 457(B) Deferred Compensation Plan Red Flag Fund Review

MOTION NO. 19-52 APPROVING 457(B) DEFERRED COMPENSATION PLAN RED FLAG FUND REVIEW

The following actions in connection with the 457(B) Deferred Compensation Plan Red Flag Fund Review are hereby approved as follows:

INVESTMENT FUNDS SYMBOL ACTION 457 (B) Portfolio PGIM Jennison Health Sciences Z PHSZX Remove and Map to PRHSX Virtus Vontobel Emerging Markets Opps I HIEMX Remove and Map to JEMOX

INFORMATIONAL ITEMS 5. 2019 Children’s Water Education Festival Director of Public Affairs Eleanor Torres provided an update on the 2019 Children’s Water Education Festival held March 27-28, 2019 at the University of California, Irvine campus. She advised that 7,277 5th grade students from 91 schools attended the festival. The Directors noted that many of the elementary schools are on spring break during the Festival and requested that alternate dates and facilities be explored for future festivals.

4/03/2019

3

6. Investigating Horizontal Collector Well for GWRS Recharge Recharge Planning Manager Adam Hutchinson advised that the District is investigating the potential for using a horizontal collector well to recharge GWRS water. With the upcoming GWR Final Expansion, he stated additional locations to recharge GWRS water will be useful to free up capacity in basins used to capture storm water and to provide operational flexibility. 7. Santa Ana Watershed Project Authority Activities General Manager Markus reported on the SAWPA Commission meeting held April 2, 2019, noting that SAWPA adopted its budget for 2020-21. 8. Committee/Conference/Meeting Reports Director Ta reported on the March 26 Retirement Committee. VERBAL REPORTS President Sarmiento reported that he provided testimony to the Subcommittee on Water, Oceans, and Wildlife in Washington DC on April 2, 2019. He also reported on his advocacy trip to Washington DC on March 25-26 to meet with the legislators. Directors Bilodeau, Rowe, and Zahra reported on their attendance at the SAWPA Conference at California State University, Fullerton. Director Bilodeau also reported on his attendance at the Orange County Science Fair on March 22. Director Green reported on her attendance at the ACWA Board meeting in Sacramento on March 29. General Manager Markus noted that the upcoming ACWA Spring Conference conflicts with the May Water Issues and Administration and Finance Issues Committee meetings. He suggested the Committees and the second Board meeting in May be moved back a week. The Board agreed to the following May calendar changes: May 15 – Water Issues Committee May 16 – Administration and Finance Issues Committee May 22 – Board of Directors meeting ADJOURNMENT There being no further business to come before the Board, the meeting was adjourned at 6:17 p.m. _____________________________________ Janice Durant, District Secretary

4/03/2019

4

________________________________ Vicente Sarmiento, President

1

AGENDA ITEM SUBMITTAL Meeting Date: May 1, 2019

Budgeted: Yes (FY18-19) Budgeted Amount: $45,000

Cost Estimate: $82,445 (for two years) To: Board of Directors Funding Source: General Fund Program/ Line Item No.: 1075.51112.9985 From: Mike Markus General Counsel Approval: Yes Engineers/Feasibility Report: N/A Staff Contact: W. Hunt/R. Herndon/ D. Mark

CEQA Compliance: N/A

Subject: EXTENSION OF CALIFORNIA DEPARTMENT OF TOXIC SUBSTANCES

CONTROL (DTSC) OVERSIGHT AGREEMENT - NORTH BASIN SUMMARY District staff has negotiated and recommends Board approval of a two-year extension of the existing California Department of Toxic Substances Control (DTSC) reimbursement agreement for their review of documents prepared as part of the remedial investigation and feasibility study (RI/FS) in the North Basin. Attachment: • Agreement with DTSC

RECOMMENDATION Authorize two-year extension of Agreement with the DTSC for reimbursement of costs in an amount not to exceed $82,445 through calendar year 2020 to review documents prepared by the District for the North Basin RI/FS. BACKGROUND/ANALYSIS In 2014, the Board authorized staff to develop strategies to remediate groundwater contamination in the North Basin area consistent with the National Contingency Plan (NCP). The District initiated a RI/FS in cooperation with and under the direction of the U.S. Environmental Protection Agency (EPA) to address the groundwater contamination. For the RI/FS, the District’s consultants, AECOM and Intera, will be preparing several key documents, including an RI report, groundwater modeling reports, human health risk assessment, several technical memoranda, and an FS. The NCP requires State involvement during the RI/FS, including review of the key documents. State acceptance of the proposed remedy is considered by EPA in selecting the remedy. The Administrative Settlement Agreement between EPA and OCWD requires OCWD to submit the key RI/FS documents to the State, specifically the RWQCB and the Department of Toxic Substances Control (DTSC).

2

In keeping with the District’s policy to implement the North Basin RI/FS in an NCP-compliant manner, staff recommends Board approval of the cost reimbursement agreement with DTSC and payments not to exceed $82,445 through calendar year 2020. Budgets for subsequent years will be brought to the Board for approval. The attached agreement was previously approved by the Board in December 2017.

DTSC Project Estimate for Two Years Oversight of North Basin RI/FS

TASKS

Project Management ARARs Tech. Memorandum Risk Assessment GW Modeling Report Alternatives Screenings Tech. Memorandum Remedial Alternatives Evaluation Tech. Memorandum Monthly Teleconference EPA Quarterly meetings Public Meetings Annual Subtotal $74,950 Contingency (10%) $7,495 Grand Total Cost $82,445

PRIOR RELEVANT BOARD ACTIONS 12/6/17, 17-12-153 - Authorize execution of Agreement with the DTSC for reimbursement of costs in an amount not to exceed $70,706 through calendar year 2018 to review documents prepared by the District for the North Basin RI/FS. 4/19/17, 17-4-52 - Authorize execution of Agreement with the RWQCB for reimbursement of costs in an amount not to exceed $64,000 to review documents prepared by the District for the North Basin RI/FS and the District’s Proposition 1 grant applications for North Basin projects. 9/7/16, R16-9-115 - Approve and authorize execution of the revised Administrative Settlement Agreement with the USEPA to oversee the District’s performance of the RI/FS for groundwater contamination in the North Basin area. 7/20/16, R16-7-106 - Authorize General Manager to negotiate the final terms of the Administrative Settlement Agreement and execute, subject to approval as to form by legal counsel, committing the District to perform the RI/FS Statement of Work under USEPA oversight. 6/15/16, M16-89 - Direct staff to finalize the terms of the Administrative Settlement Agreement with the USEPA for the North Basin RI/FS, and return to the Board for approval of such Agreement.

3

3/12/15, M15-50 - Authorize staff to negotiate a draft Agreement with the USEPA to establish the USEPA as the regulatory oversight agency for the District’s North Basin technical activities. 3/19/14, R14-3-00 - Direct staff to agendize the consideration of initiating the NCP process on the North Basin Groundwater Protection Project.

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ATTACHMENT 1

AGREEMENT BETWEEN OCWD AND THE CA DEPARTMENT OF TOXIC SUBSTANCES CONTROL

STATE OF CALIFORNIA - DEPARTMENT OF GENERAL SERVICES .--------------.--------------�

STANDARD AGREEMENT

STD 213 {Rev. 10/2018)

CONTRACTING AGENCY NAME

Department ofToxic Substances Control CONTRACTING AGENCY ADDRESS

1001 I Street, P.O. Box 806 PRINTED NAME OF PERSON SIGNING

Jessica Heinz CONTRACTING AGENCY AUTHORIZED SIGNATURE

CALIFORNIA DEPARTMENT OF GENERAL SERVICES APPROVAL

AGREEMENT NUMBER

18-T4608

STATE OF CALIFORNIA

PURCHASING AUTHORITY NUMBER {If Applicable)

CITY STATE ZIP

Sacramento JCA 95812 TITLE

Procurement & Contracting Officer DATE SIGNED

EXEMPTION {If Applicable)

DGS Exemption Letter 40.07

Paqe 2 of 2


Meeting Date: May 1, 2019 Budgeted: N/A Budgeted Amount: N/A To: Board of Directors Cost Estimate: N/A Funding Source: N/A Program/ Line Item No. N/A From: Mike Markus General Counsel Approval: N/A Staff Contact: M. Plumlee/J. Dadakis

Engineers/Feasibility Report: N/A CEQA Compliance: N/A

Subject: UPDATE ON RESEARCH & DEVELOPMENT (R&D) ACTIVITIES SUMMARY Applied research by the District is ongoing to evaluate closed circuit reverse osmosis (CCRO) for the treatment and recovery of the reverse osmosis concentrate (ROC) waste stream from the Groundwater Replenishment System (GWRS), which is currently discharged to the ocean via the Orange County Sanitation District (OCSD) outfall. Staff will provide an update on the CCRO pilot testing, funded by a grant from U.S. Bureau of Reclamation (USBR), as well as provide an update on a separate USBR-funded project testing novel methods for ensuring RO membrane integrity. Finally, two other new projects will briefly be highlighted. Attachments:

1) Presentation 2) R&D Project Update Report for Q1 2019 (22 April 2019)

RECOMMENDATION Informational

Board of Directors MeetingMay 1, 2019

Update on R&D Activities

2

Biannual R&D Summary Report

• 28 current projects / programs

• Publications (3)

– Environmental Sci.: Water Research & Tech.

– J. of Membrane Science

– WRF Report

3

Recent Outcomes (past 6 months)

• Conference Outreach (10)

– 6 presentations accepted for WateReuse CA Conf. (March)

– 4 other conference presentations/ posters

Recent Outcomes (past 6 months)

• Grants (3)

– WRF SPP

– MWD FSA

– WRF 4598

4

Today’s Updates

• CCRO Pilot Testing [USBR grant]

• RO Membrane Integrity Study [USBR grant]

• Membrane Biocide Evaluation [pending USBR grant]

• Wastewater Virus LRV Study [MWD grant + WRF grant]

5

CCRO Pilot Testing - Background

6

RO Concentrate

Stage 1 Stage 2 Stage 3RO Feed(MF effluent)

RO Permeate130 MGD

23 MGD153 MGD

85% Recovery

Final expansion:

concentrate disposal 23 MGD

7

RO Concentrate

Stage 1 Stage 2 Stage 3RO Feed(MF effluent)

RO Permeate139 MGD

23 MGD153 MGD ~90-95%

Recovery(Overall)

Hypothetical:

concentrate disposal 14 MGD

9 MGD

CCRO

• Current status / progress:

– Treating plant RO concentrate as the feed water

– Recovery is 57-61% (corresponding to 91% overall)

– Successfully achieved ~ 2 mo. interval between cleanings. Using plant RO feed in side conduit.

– Two sampling events for comprehensive product water quality analysis

– Planning for additional USBR grant-required tasks (e.g., virus challenge)

8

CCRO Pilot Testing

RO Membrane Integrity Study

9

• Objective: to evaluate novel methods for ensuring RO process integrity via online water quality monitoring – to achieve greater regulatory credit toward required virus removal

• Update: Data collected on ATP presented at WateReuse conference

GWRS RO Facility

LRV

Membrane Biocide Evaluation

10

• Objective: test a replacement for chlorine (used to control MF and RO membrane biofouling) to avoid undesirable byproducts in finished water

• USBR grant proposal is pending

• Status: “control” pilot underway (using chlorine)

Wastewater Virus LRV at OCSD

11

• Objective: establish degree of virus removal by OCSD treatment that precedes OCWD’s advanced purification, toward regulatory credit

• Status: Test plan under review by DDW

Photo: Field concentration of water sample by UF filter

12

Questions?

Summary:

• CCRO Pilot Testing [USBR grant]

• RO Membrane Integrity Study [USBR grant]

• Membrane Biocide Evaluation [pending USBR grant]

• Wastewater Virus LRV Study [MWD grant + WRF grant]

OCWD R&D Department

R&D Project Update Report

This R&D Project Update Report is generated twice per year (Q1 and Q3) to summarize R&D projects.

The first section, “Project Updates”, provides a brief status report for 28 different projects and programs.

Later sections note recent publications and conference presentations by R&D staff, as well as external

research projects in which OCWD’s role as a participating utility is coordinated by R&D staff.

Contents (all contents are hyperlinked to jump to projects)

Project Updates ........................................................................................................................ 3

Potable Reuse Water Quality ................................................................................................................. 3

Project: Evaluating Post-Treatment Challenges for Potable Reuse Applications ......................................... 3

Project: Non-Targeted Analysis of NDMA Precursors Found in the AWPF ................................................... 4

Project: Understanding Formation of a Critical Disinfection Byproduct: NDMA and Previously

Unidentified NDMA Precursors in Advanced Potable Reuse Treatment Plants .............................. 5

Project: Securing the Future of Direct and Indirect Potable Reuse: NDMA Formation Pathways and

Precursors ............................................................................................................................................. 6

Project: Characterization of NDMA Precursors in an Advanced Water Treatment Facility Using the

Polarity Rapid Assessment Method (PRAM) and Ultrafiltration ....................................................... 7

Pilot Treatment Studies – Product Evaluations ................................................................................... 8

Project: Low-Pressure Membrane (MF and UF) Pilot Scale Product Evaluation for AWPF .......................... 8

Program: RO Antiscalant Pilot Scale Product Evaluation for AWPF .............................................................. 9

Program: RO Membrane Product Evaluations for AWPF (Satellite Vessels) ................................................. 9

Pilot Treatment Studies – Research & Optimization ......................................................................... 10

Project: Improving MF Treatment and Energy Efficiency through Monitoring and Removal of Colloidal

Particle Foulants ................................................................................................................................. 10

Project: Evaluation of Peroxide Disinfectants as Biofouling Controls Agents in an MF/RO Treatment

System ................................................................................................................................................. 11

Date: 22 April 2019

To: All Departments

From: Megan Plumlee (R&D)

Subject: R&D PROJECT UPDATE REPORT – Q1 2019

R&D Project Update Report Q1 2019

Page 2

Program: Assessing and Ensuring Effective Antiscalant Treatment via Real Time Online Membrane

Monitoring (MeMo™) .......................................................................................................................... 12

Project: Desalitech Closed Circuit Reverse Osmosis (CCRO) Pilot Study for Water Recovery from RO

Concentrate ......................................................................................................................................... 13

Project: Porifera Forward Osmosis Pilot Study for Demonstration of dprShield Technology in RO

Concentrate Treatment ....................................................................................................................... 14

Project: Increasing Potable Water Recovery to >95%: Pilot Evaluation of Closed Circuit Reverse

Osmosis (CCRO) and Forward Osmosis (FO) Alternatives for Concentrate Treatment ............... 15

Method Development ............................................................................................................................ 16

Project: Utility Validation of Alternative Method for NDMA Analysis ........................................................... 16

Advanced Treatment Processes ......................................................................................................... 17

Project: Determination of Enteric Virus Log Reduction Values (LRVs) from Orange County Sanitation

District Plant No. 1 and No. 2 ............................................................................................................. 17

Project: Characterization of AWPF Feed Water .............................................................................................. 18

Project: Cartridge Filter Performance Evaluation using Rapid ATP Assay ................................................. 18

Project: Novel Online Surrogates to Monitor Reverse Osmosis Performance in Reuse Applications ...... 19

Project: UV/H2O2 Characterization and Optimization Studies ....................................................................... 20

Project: Kinetics Modeling and Experimental Investigation of Chloramine Photolysis in Ultraviolet-

Driven Advanced Water Treatment ................................................................................................... 21

Project: Experimental Investigation of Chloramine and Persulfate Aqueous Photochemistry and

Development of Efficient Ultraviolet-Based Water Treatment ........................................................ 22

Project: Innovative Water Reuse Systems Harnessing Chloramine Photochemistry for Potable Water

Reuse ................................................................................................................................................... 23

Project: Quantifying Chlorine Atom Radical (Cl•) Chemistry Under Orange County Water District

Advanced Oxidation Process Conditions ......................................................................................... 23

Project: Trojan Technologies UV/HOCl, UV/H2O2, and UV/chloramine Pilot Studies .................................. 24

Groundwater Recharge Optimization and Monitoring ...................................................................... 25

Project: Desilting Demonstration Project Phase III Support ......................................................................... 25

Project: Miraloma Basin Percolation Decline Column Study ........................................................................ 26

Project: FODTS to Measure Percolation Rate in La Palma Basin ................................................................. 27

Reporting Period Publications ...............................................................................................28

Reporting Period Conference Presentations/Posters ..........................................................28

Participating Utility Projects ..................................................................................................29


Page 3

Project Updates

Potable Reuse Water Quality

Project: Evaluating Post-Treatment Challenges for Potable Reuse Applications

R&D Staff Contacts: Megan Plumlee, Ken Ishida

Start Date/Expected Completion: Fall 2016 to Summer 2019

External Funding: Yes (WRF and partner utilities)

This study is funded by The Water Research Foundation (WRF), formerly the Water Environment &

Reuse Foundation (WE&RF) and investigated post-treatment optimization at the Advanced Water

Purification Facility (AWPF), to balance competing goals of 1) maintaining pipeline integrity from corrosion

while 2) minimizing NDMA reformation and 3) minimizing aquifer recharge metals mobilization. OCWD

has conducted research and data collection on each topic independently; this WRF project is an

opportunity to interpret these findings together and collect additional data to address knowledge gaps.

The project team consists of OCWD, Trussell Technologies, and Stanford University, together with

several participating utilities that contributed cash funding. With respect to the NDMA studies for this

project, previously R&D evaluated historical data on NDMA occurrence and treatment efficacy in AWPF,

initiated testing for possible NDMA contamination from lime addition post-UV/AOP, and measured NDMA

formation potential in post-UV/AOP water. For this project, R&D has built on previous work through

literature review and studies including 1) further evaluation of the lime addition step (impact of elevating

pH on NDMA formation); 2) NDMA formation potential testing of individual RO permeates from AWPF RO

membranes of different ages and manufacturers; 3) evaluation of impact of UV/AOP treatment on NDMA

formation potential; 4) evaluation of NDMA formation in GWRS pipeline, among other tasks.

Project Updates

Current

• The project completion deadline was extended to April 2019 to accommodate time for partners

Trussell Technologies and Stanford University to complete research tasks and the final report.

• R&D is completing final research tasks that were delayed while the HPLC-PR-CL was repaired

(used to analyze water samples for NDMA concentration).

• R&D staff monitoring of the Trussell Technologies pipe loop systems that were installed in the RO

building was completed and Trussell staff has taken back these systems due to their completion

of this task. These exposed samples of GWRS pipeline concrete mortar lining to RO permeate

and finished product water. R&D staff measured water quality and changed out the water as

much as weekly.

• The large project team is currently drafting the draft final report with expected delivery to WRF

and its PAC in April.


Page 4

Future

• Even though the WRF project will soon reach end of contract date and WRF report will be issued,

R&D staff intends to complete certain follow-up work (e.g., minor incomplete tasks and

confirmation tasks to verify findings) towards developing a high quality scientific publications. This

includes:

o R&D will complete a second UV pilot experiments to evaluate the benefits and drawbacks

of adding lime prior to UV/AOP rather than after (as is currently done at the AWPF). This

was delayed due to HPLC-PR-CL instrument being offline.

o R&D will evaluate the influence of pH on NDMA formation in AWPF water in benchtop

experiments. Plant UV/AOP product water will be collected and the pH will be increased

using both lime and NaOH to determine the extent of NDMA “rebound” (formation) at

various pH levels. Planning was completed, but task was delayed due to HPLC-PR-CL

instrument being offline.

• A draft manuscript was revised and re-submitted for journal publication; R&D staff will develop at

least one additional scientific publication from this project.

Project: Non-Targeted Analysis of NDMA Precursors Found in the AWPF


Start Date/Expected Completion: Spring 2016 to Winter 2018

External Funding: No

This is a collaborative project with Professor David Hanigan of University of Nevada, Reno (UNR) to

isolate NDMA precursors from AWPF water at multiple locations. NDMA is a key contaminant of concern

that is monitored by OCWD in the AWPF, and it forms from reaction of unidentified precursor compounds

with chloramines that are maintained as a biocide. NDMA precursors were extracted from water samples

using a previously developed method for isolating amine compounds. In partnership with collaborators at

University of Colorado (CU), Boulder who have expertise in non-targeted analysis, the extracts were

injected onto a high performance liquid chromatography (HPLC) time of flight (TOF) mass spectrometry

(MS) system to search for and identify NDMA precursors. In addition to potentially identifying unknown

precursors in AWPF source waters, another objective was to evaluate the hypothesis that aged RO

membranes may pass more NDMA precursors compared to newer membranes, and to assess whether

the UV/AOP treatment step may produce NDMA precursors.

Project Updates

Current

• A manuscript based on the work completed for this project was published in this period; this

project is now complete. R&D is continuing collaborating with the UNR and CU team on non-

targeted analysis through two ongoing grants (USBR and NSF) (below next two projects).


Page 5

Project: Understanding Formation of a Critical Disinfection Byproduct: NDMA and

Previously Unidentified NDMA Precursors in Advanced Potable Reuse Treatment

Plants


Start Date/Expected Completion: Jan 2018 to Mar 2020

External Funding: Yes (USBR DWPR)

The goal of this study is to determine the occurrence and fate of N-nitrosodimethylamine (NDMA) and NDMA precursors in the OCWD AWPF. NDMA and unknown precursors are present in the secondary effluent that feeds the plant. RO partially removes the NDMA while the UV/AOP effectively reduces the concentration below the 2 ng/L detection limit. However, a significant concern is that NDMA can form in the product water after UV/AOP treatment (i.e., NDMA reappears) likely due to the incomplete removal of NDMA precursors during advanced treatment. NDMA precursors are diverse and few are of known chemical composition. Therefore, in this study two non-targeted analytical techniques for the identification of unknown compounds will be used to identify new NDMA precursors. Non-targeted analysis tasks will be completed at University of Nevada, Reno, University of Colorado, Boulder and San Diego State University. The study will also investigate NDMA and NDMA precursors in permeate from different RO membrane ages and manufacturers, after membrane cleaning, and in product water after UV/AOP treatment using different oxidants. RO is the first line of defense for NDMA precursors and the effectiveness of this intervention is highly necessary to reduce NDMA formation post treatment. Finally, given the importance of NDMA as a disinfection byproduct of public health concern, and the industry interest in direct potable reuse, this study will assess the potential utility of developing a rapid online NDMA analyzer via high frequency sampling to assess diurnal trends in NDMA occurrence and treatment process reliability. These tasks will allow for a greater understanding of NDMA formation in advanced water treatment facilities and identify strategies for reducing the amount of NDMA formed post treatment.

Project Updates

Current

• Two quarterly progress reports were generated for USBR in the last period, shortly followed by

grant payments to OCWD from USBR.

• Coordination is ongoing to create an OCWD subcontract as part of the USBR grant with Shannon

Roback, formerly R&D Department Postdoctoral Research Associate and now professor at

California State University at Dominguez Hills, such that Dr. Roback can complete research tasks

and leadership for the project (as a Co-PI) and accordingly receive funding from the grant.

• Planning is ongoing for multiple research tasks that were delayed due to HPLC-PR-CL instrument

being offline for an extended period (used for NDMA analysis). It is now online again.

• An initial non target analysis data report was obtained from CU based on the first of two UV-AOP

pilot tests completed by R&D.

• UNR is completing analysis of various chemicals used for water treatment at the OCWD AWPF

for their potential contribution of NDMA precursors to the finished product water (e.g., membrane

cleaning chemicals). It is largely expected that this work will rule out this possible contribution.

• R&D staff is completing a literature review and summary to serve as the first chapter of the USBR

report, regarding NDMA precursors in potable water reuse.


Page 6

• An initial test of the effect of membrane cleaning on RO rejection of NDMA precursors was

completed (in the full-scale RO facility) with data analysis underway.

Future

• R&D will pursue a more aggressive task completion schedule to “catch up” on the grant schedule

given that the offline HPLC-PR-CL instrument is now available again. This includes conducting

high frequency NDMA and NDMA precursor sampling for four separate sampling events with

additional corresponding DBP analysis by USC laboratory partner.

• R&D will conduct the second major UV/AOP pilot testing event in summer, comparing alternative

AOP oxidants to hydrogen peroxide, for which samples are sent to partner labs (UNR/UC and

SDSU) for testing.

Project: Securing the Future of Direct and Indirect Potable Reuse: NDMA

Formation Pathways and Precursors

R&D Staff Contacts: Megan Plumlee

Start Date/Expected Completion: Jan 2018 to Sept 2019

External Funding: Yes (NSF GOALI / WRF)

Professor David Hanigan at the University of Nevada, Reno (UN Reno) together with District R&D

Department staff were awarded a grant from the National Science Foundation (NSF) to fund research

related to N-nitrosodimethylamine (NDMA) precursors at the Groundwater Replenishment System

(GWRS). The overall goal of the NSF study is to understand how NDMA formation occurs in advanced

treated, finished water from GWRS despite effective removal of NDMA and most of its precursors during

advanced treatment. Specific aims include 1) determine the reactivity of known precursors; 2) evaluate

whether chemical additions during advanced treatment may contribute to the formation of NDMA; 3)

identify whether the UV/advanced oxidation process may result in transformation products that are NDMA

precursors (i.e., conversion of unreactive organic nitrogen to reactive, NDMA precursors); 4) characterize

changes in bulk chemical characteristics of the NDMA precursor pool during advanced water treatment.

The aims will be investigated using novel mass spectrometric and separations techniques pioneered by

members of the research team. This work will be a continuation of a previous project collaboration

between Professor Hanigan and his students with OCWD R&D staff on NDMA.

Project Updates

Current

• UNR PI held kick-off project meeting (teleconference).

• Related to, but unique from, a similar USBR grant task described in the above project, UNR is

completing analysis of various chemicals used for water treatment at the OCWD AWPF for their

potential contribution of NDMA precursors to the finished product water. It is largely expected that

this work will rule out this possible contribution.


Page 7

• Coordination is ongoing to create an OCWD subcontract as part of the NSF grant with Shannon

Roback, formerly R&D Department Postdoctoral Research Associate and now professor at

California State University at Dominguez Hills, such that Dr. Roback can complete research tasks

and leadership for the project (as a Co-PI) and accordingly receive funding from the grant.

Future

• Current tasks are largely led by UNR and do not involve OCWD. OCWD is participating in

periodic team meetings led by the UNR PI. OCWD tasks are not expected until later in ~2020.

Project: Characterization of NDMA Precursors in an Advanced Water Treatment

Facility Using the Polarity Rapid Assessment Method (PRAM) and Ultrafiltration

R&D Staff Contacts: Megan Plumlee

Start Date/Expected Completion: Jan 2018 to Winter 2019


The primary objective of this collaborative study with UCLA is to use a polarity rapid assessment method

(PRAM) and ultrafiltration (UF) method to characterize the polarity and molecular weight distribution of the

bulk NDMA precursors as they travel through the AWPF. The project will evaluate structural changes in

precursors of NDMA during advanced treatment for potable reuse. For example, polarity characterization

of NDMA precursors via PRAM may demonstrate an increase in the percent of precursors that are polar

after RO treatment, coinciding with the overall significant decrease in precursor concentration via RO.

This information will be useful to understanding the character and fate of precursors through treatment,

which may be helpful in the design of new treatment systems or development of new technologies. For

example, the type of membrane used in AWPF could be chosen based on its ability to remove chemicals

of a certain character that may be more likely to form NDMA (e.g. non-polar and/or positively charged)

chemicals. This work will be completed under the direction of Dr. Mel Suffet of UCLA with sampling,

oversight of the method, and results analysis by R&D staff.

Project Updates

Current

• One of two sampling events was completed in 2018 in which UCLA extracted samples using

specialized PRAM extraction cartridges. Sample analysis of extracts by R&D was delayed due to

HPLC-PR-CL being offline. Now that it is online, in this period the samples were analyzed

(despite their potential expiration).

• Project team met to review first event results. Much of the interpretation and coordination is being

led voluntarily by Prof. Shannon Roback of CSUDH who has experience working with UCLA

PRAM methods. Data suggests that expiration may not have been an issue, but nevertheless it is

important to confirm the results in a second sampling event.


Page 8

Future

• UCLA in coordination with R&D will collect AWPF samples for a second (final) PRAM extraction

event.

• A final report will be completed by UCLA.

• A publication will be authored describing the findings, pending results. Findings will be reviewed

to determine whether follow up work is worthwhile which has been considered as part of the

scope of the above described NSF grant led by UNR.

Pilot Treatment Studies – Product Evaluations

Project: Low-Pressure Membrane (MF and UF) Pilot Scale Product Evaluation for

AWPF

R&D Staff Contacts: Han Gu

Start Date/Expected Completion: 2015 to 2019


This project evaluates alternative low-pressure membrane products (i.e., microfiltration [MF] and

ultrafiltration [UF] membranes) for the GWRS to support a product selection decision for the 30-mgd

GWRS Final Expansion (FE). GWRSFE engineering design began in Fall 2017. Long-term piloting

evaluations for UF products are currently underway at the OCWD Engineering Research Center (ERC) as

well as at OCSD Plant No.2. Testing at OCSD Plant No. 2 is necessary because effluent from this plant

will be a new water source for the AWPF as part of the GWRSFE. Manufacturers include Evoqua Water

Technologies, GE Water and Process Technologies, Toray Industries, Inc. and Scinor North America.

Identifying suitable products will provide staff with options for replacing existing AWPF membranes and

for the GWRS FE. Most evaluations have already been completed to meet the design schedule for

GWRSFE but additional confirmation and chemical optimization via pilot testing for certain products is

continuing in FY 2018-19 and FY 2019-20. Based on positive results of the R&D piloting, Scinor UF

membranes and later Evoqua UF membranes were installed in two full-scale MF cells (E04 and E03) at

AWPF for further evaluation led by the Engineering Department. Operational testing for Scinor

demonstration cell is underway and began Q3 2018. Operational testing for Evoqua demonstration cell is

underway and began Q1 2019.

Project Updates

Current

• Pilot product evaluations at OCSD Plant No. 2 this period included a polyvinylidene fluoride

(PVDF) UF membrane from Scinor and a “next generation” PVDF module from Evoqua (same

module length as current Evoqua MF membrane at AWPF).

o Virus and bacterial removal ability of the two UF products were characterized in a water

quality sampling campaign in Q4 2018 to Q1 2019.Product evaluations at the ERC this

period included the same next generation PVDF UF membrane from Evoqua that is being

tested at Plant No. 2 (installed on Evoqua MF pilot 1 and 2).

• Previously completed product evaluations at the ERC included UF (PVDF) membranes from

Evoqua, Toray, Scinor and GE. Previously completed product evaluations at OCSD Plant No. 2

included the Evoqua MF membrane currently used at AWPF (Evoqua polypropylene membrane),


Page 9

a longer module MF membrane from Evoqua (polypropylene), a longer module UF PVDF

membrane from Evoqua, and a Toray UF membrane.

Future

• Pilot testing of UF products will continue, for the Scinor UF membrane and the Evoqua (next

generation PVDF) UF membranes at Plant No. 2.

• Summary evaluation reports will be prepared for each product.

Program: RO Antiscalant Pilot Scale Product Evaluation for AWPF


Start Date/Expected Completion: 2008 - ongoing


The AWPF RO system requires chemical addition, antiscalant and acid, to the feed to prevent the

precipitation of sparingly soluble minerals which foul the membranes. Identifying the appropriate

antiscalant product, dosage and feed water pH through pilot testing is an ongoing program. R&D

continues to test newly available antiscalants, as well as operating conditions (dose and pH), to identify

preferred products and minimum required doses via pilot-scale testing at the ERC using RO pilots.

Antiscalant products found to be effective through these efforts are short-listed for bidding through the

District’s procurement process. This program has resulted in cost-savings totaling in excess of

$1,000,000 annually.

Project Updates

Current

• For monitoring purposes as a longer term test, the AWC A-108 trial (at a dose of 2.5 mg/L and pH

6.9) was extended past the typical six-month to 1 year antiscalant pilot evaluation period,

because the product was selected for usage in GWRS.

• The Avista Vitec 1500 trial (at a dose of 2.5 mg/L and pH 6.9) was concluded in October 2018.

Avista provided an autopsy for the lead and tail elements of the pilot.

Future

• R&D staff will complete an internal report for the parallel re-trial of the AWC A108 and Avista

Vitec 1500 antiscalant product trial results.

Program: RO Membrane Product Evaluations for AWPF (Satellite Vessels)




Commercial RO membrane products continue to be developed by manufacturers which have potential for

significant benefits in terms of enhanced permeability and rejection. Products for the AWPF are

continuously evaluated by R&D through conducting long-term testing (~12 months) using a series of eight

test vessels (satellite vessels) located in the AWPF RO facility. Products deemed successful are short-


Page 10

listed for future membrane procurements. The goal is to expand the list of pre-qualified products to

create a competitive environment within the District’s procurement process.

Project Updates

• Currently, products being evaluated include Toray TLF-400DG and Hydranautics ESPA4-LD.

• LG Chemical BW 400 was selected as RO Train A replacement membrane based on testing

performance and cost. R&D is continuing to operate this product in the satellite vessel to develop

a longer term dataset.

• Membrane cleaning and water sampling was completed for Hydranautics ESPA4-LD to evaluate

impacts of chemical cleaning.

Future

• The above evaluations will continue, and in some cases qualified products will be left in place to

collect longer-term data in the event there is no other product competing for that position/testing.

• A final report was prepared for LG Chemical BW 400 ES (Fall 2018).

Pilot Treatment Studies – Research & Optimization

Project: Improving MF Treatment and Energy Efficiency through Monitoring and

Removal of Colloidal Particle Foulants

R&D Staff Contacts: Jana Safarik

Start Date/Expected Completion: Summer 2015 to Spring 2019

External Funding: Yes (California Energy Commission)

OCWD is one of two demonstration sites for this $1.2 million study, led by Kennedy/Jenks Consultants and

funded by the California Energy Commission (CEC). The other demonstration site is West Basin Municipal

Water District. The objective of the project is to improve the energy efficiency of low pressure membrane

treatment (e.g., MF) of recycled water through on-line monitoring and removal of colloidal particles that

cause fouling. The colloidal particle monitoring is conducted using Malvern Instruments Nanosight NS500.

OCWD is being reimbursed up to $40,000 through the grant funding for equipment/supplies related costs.

R&D is providing project support via provision of Engineering Research Center pilot equipment and staff

time for pilot operational support, project experimental design, membrane autopsies, and other analysis.

Project Updates

Current

• The project was completed on 03/29/19. A draft final report was submitted to CEC for review.

Future

• A final report will be submitted to CEC.

• The project team will prepare manuscripts for journal publication.


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Project: Evaluation of Peroxide Disinfectants as Biofouling Controls Agents in an

MF/RO Treatment System

R&D Staff Contacts: Jana Safarik, Megan Plumlee

Start Date/Expected Completion: 2018 - 2020

External Funding: No (OCWD funding to Dr. Martin Reinhard)

This project is in collaboration with Dr. Martin Reinhard (Professor Emeritus of Stanford University).

GWRS feed water contains significant quantities of membrane fouling materials, including

nanoparticulates, bacteria, microbial detritus and dissolved organic matter impairing the performance of

the MF and RO systems. To mitigate RO biofouling, but also providing an oxidative benefit to MF,

monochloramine (MCA) is used as a biocide and antifouling agent in the District AWPF. In the AWPF,

MCA is formed by reacting sodium hypochlorite with ammonia in the secondary effluent (AWPF

feedwater, i.e., Q1 water). The use of MCA may be problematic because it can cause oxidative damage

to the polyamide separation layer of RO membranes, and forms nitrosodimethylamine (NDMA) and other

disinfection by-products (DBPs). To avoid membrane and environmental impacts caused by chlorine,

employing non-chlorine based disinfectants may prove to be beneficial. The goal of this project is to

assess the feasibility and potential benefits of using hydrogen peroxide (H2O2) alone or in combination

with paracetic acid (PAA) as a disinfectant and an antifouling agent for MF and RO. H2O2 and PAA are of

interest because they don’t produce toxic by-products, are relatively inexpensive and are available in

liquid form. This study will evaluate UF and RO performance, at pilot-scale, under the different

disinfectant regimes dosed to UF feed. The current AWPF sodium hypochlorite dosing regimen will also

be tested for comparison (as a control).

Project Updates

Current

• A potential supplier, PeroxyChem, of a PAA/ H2O2 product completed stability and disinfection

tests using Q1 feed water.

• AWC completed compatibility testing between their AWC A-108 antiscalant (used in GWRS) and

the PeroxyChem product. No compatibility issues were observed.

• Pilot control runs using sodium hypochlorite as a disinfectant (control) continued during this

quarter. The membranes used in the pilots are Evoqua S10N UF membranes and Hydranautics

ESPA2-LD RO membranes.

• Design of PAA/H2O2 UF-RO pilot system was completed.

Future

• R&D staff will complete the sodium hypochlorite pilot tests (control).

• The project team will begin H2O2 and PAA pilot tests.


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Program: Assessing and Ensuring Effective Antiscalant Treatment via Real Time

Online Membrane Monitoring (MeMo™)

R&D Staff Contacts: Han Gu, Megan Plumlee



The existing OCWD RO Pretreatment Chemical Program qualifies antiscalants to continuously identify

products that may improve the operation and cost effectiveness of mineral scaling suppression in the

AWPF RO units. The program involves evaluating candidate antiscalants using RO pilot systems at the

OCWD Engineering Research Center (ERC), operated to simulate the full-scale RO units in the GWRS.

The current program strategy is to test a given antiscalant type and dose over an extended period (at

least 6 months) to evaluate whether significant permeability decline occurs within that period. However,

permeability decline is an indirect measure of membrane scaling/fouling. It is possible that a significant

degree of mineral scaling/fouling may occur before permeability decline can be detected with sufficient

resolution. Early warning can be critical in plant operation for providing operators with enough time to

adjust operating conditions. The goal of this 12-month project is to test the application of Noria’s real-time

membrane monitor (MeMo™) to improve the existing OCWD RO Pretreatment Chemical Program.

MeMo™ uses online, direct membrane surface imaging to track surface coverage and permeate flux

changes. In this manner, MeMo™ can be used to quickly assess a range of antiscalant doses (i.e., within

a few weeks) and determine the minimum required dose for effective suppression of membrane mineral

scaling/fouling in pilot RO trials.

Project Updates

• A MeMo™ unit was installed on the concentrate line of RO pilot #2 at the ERC in late October

2018 where it serves to monitor tail-end element fouling.

• As part of the experimental plan (Phase I), the antiscalant dose to the pilot was reduced step wise

from 2.5 ppm to no antiscalant. Based on online determination of surface fouling coverage of the

membrane in MeMo™, no significant fouling was detected down to an antiscalant dose of

1.75 ppm. After reducing the antiscalant dose from 1.75 to 1.25 ppm, surface fouling coverage

began to increase above 5%, indicating the onset of progressive fouling. With antiscalant dosing

terminated, surface fouling coverage continued to increase rapidly. Based on the above results,

the minimum antiscalant dose appears to be in the range of 1.25-1.75 ppm. Ongoing testing is

being performed to repeat/confirm the findings.

Future

• Noria Water recommended the continuation of Phase 1 with antiscalant dose of 1.75 ppm. It is

recommended to operate at this condition for 1 month to confirm continuous effectiveness of

antiscalant fouling suppression.


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Project: Desalitech Closed Circuit Reverse Osmosis (CCRO) Pilot Study for Water

Recovery from RO Concentrate


Start Date/Expected Completion: Fall 2016 to Fall 2019


The District discharges 18 million gallons per day (MGD) of concentrated reject water from the AWPF RO

process to the OCSD ocean outfall, and this will increase to up to 23 MGD once the Final Expansion is

complete. With additional treatment, the RO concentrate waste stream represents a significant new

source of water for the District. Technologies with sufficient potential to warrant evaluation include closed

circuit reverse osmosis (CCRO; in previous reports referred to as closed circuit desalination, CCD),

forward osmosis, and conventional RO (as a fourth stage) or similar alternative such as high efficiency

RO (HERO). OCWD purchased a pilot CCRO system from Desalitech to evaluate the potential of CCRO

to treat RO concentrate for water recovery. CCRO is a newly developed, RO-based water treatment

process that is patented by Desalitech, Inc. It consists of standard RO membranes and equipment, but is

operated in a semi-batch mode, in which concentrate produced by the CCRO system is recirculated back

to the feed water side until the desired water production is reached, at which time the concentrate is

discharged from the system and replaced with feed water to begin again. Jacobs is providing technical

support for the study. The CCRO pilot unit is in the RO building.

Project Updates

Current

• Phase 2 of the pilot test began March 2018 and is still ongoing, extended to coincide with the

USBR funded project described next. The pilot is currently treating GWRS AWPF RO concentrate

while using GWRS AWPF RO feed as source water to refill the side conduit at the end of each

CCRO cycle. Two long term demonstration trials in ROC + ROF mode yielded about two months

of continuous run time between chemical cleanings, considered a significant improvement and

consistent with project/OCWD goals to conduct CIPs no more than monthly, or ideally, only every

other month, in the case of a full-scale CCRO implementation.

• Instead of running at a preset maximum recovery, the pilot is operated in a variable recovery

mode where the cycle-to-cycle recovery is controlled by both the maximum CCRO concentrate

conductivity set point (which is directly related to the feed conductivity and temperature) and

maximum recovery setpoint. To date, volume-based average overall permeate recovery of the

CCRO pilot is 90.6%.

Future

• Pilot operational feasibility and recovery optimization will continue in coordination with the USBR-

funded scope of work (described below). Since the USBR scope includes water quality sampling

over multiple events, the pilot will be operated in a consistent fashion (such that the events are

replicates), but further operational optimization could be considered following completion of the

USBR study.

• The project team will generate a final report in order to complete the Desalitech-Jacobs scope of

work, which was defined prior to obtaining a related USBR grant (below).


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Project: Porifera Forward Osmosis Pilot Study for Demonstration of dprShield

Technology in RO Concentrate Treatment


Start Date/Expected Completion: Jan 2018 to ~Spring 2019

External Funding: No (CEC funding to Porifera)

As described above for the Desalitech CCRO pilot study, the RO concentrate waste stream represents a

significant new source of water for the District. The existing RO system removes most emerging

contaminants, which are concentrated in this ROC stream to higher concentrations than the RO feed

(ROF) stream. Therefore, robust treatment is important prior to potable reuse. The California Energy

Commission (CEC) has provided funding to test dprShield technology as part of the Porifera forward

osmosis (FO) technology demonstration at pilot scale at the GWRS with the intent to demonstrate

dprShield and FO as innovative technologies to use less energy and reuse more water during potable

reuse. dprShield is a new technology that combines FO and RO treatment processes with a type of real-

time integrity monitoring and rejection mechanism called Breach-Activated Barrier™. OCWD is a partner

site in the CEC funded project. The FO-RO pilot unit is in the RO building.

Project Updates

Current

• Porifera staff in collaboration with R&D staff are working to optimize system configuration. The

objective is to adjust and optimize pilot performance and to determine appropriate maintenance

requirements. The pilot commissioning was extended to Q3 2018 due to multiple issues including

off-spec membranes, leaking valves, etc. The RO membrane performance issue (low salt

rejection) previously thought related to the marker (dye) was due to a faulty permeate conductivity

probe. A new probe was installed on the pilot and the RO permeate conductivity was measured in

the normal range.

• The Porifera team in collaboration with Stanford University partners on their CEC grant conducted

water quality sampling in Q3 of 2018.

Future

• The cleaning frequency of both the FO and RO membranes is more frequent with the dye

present. Additional testing was performed at Porifera’s facility to determine if the dye alone is the

likely cause of membrane fouling during pilot testing. The fouling has not been repeatable on

synthetic feed solutions which indicate that it may be site specific. Samples from the fouled

membranes have been sent for lab testing to troubleshoot the issue.

• Long term operation of the pilot at 27% system recovery is ongoing to evaluate the FO-RO

system performance.

• The Porifera pilot will be evaluated as part of the USBR-funded scope of work (described below).

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwir2b_pnpXaAhVL4mMKHVMdDOQQjRx6BAgAEAU&url=https://globalscholarshipinfo.com/2018/01/25/stanford-university/&psig=AOvVaw0i41c_FXiJe7WB-MTcscvH&ust=1522540316621148


Page 15

Project: Increasing Potable Water Recovery to >95%: Pilot Evaluation of Closed

Circuit Reverse Osmosis (CCRO) and Forward Osmosis (FO) Alternatives for

Concentrate Treatment


Start Date/Expected Completion: Spring 2018 to Fall 2019

External Funding: Yes (USBR DWPR grant)

The R&D Department is evaluating closed circuit reverse osmosis (CCRO – Desalitech) and forward osmosis (FO - Porifera) at pilot-scale to further treat and reuse a portion of the OCWD RO concentrate (ROC) reject stream that is currently discharged to the ocean. This project builds on the CCRO and FO studies described above, and uses USBR grant funding to evaluate the water quality of the product water produced by each of these systems as well as to complete other tasks. Successful treatment and recovery of RO concentrate at advanced potable reuse facilities like GWRS will minimize the volume of the waste stream while generating more water, increasing overall facility water recovery (plant efficiency) from 85% to greater than 90 or even 95%. Using the pilot operational feasibility and optimization completed previously (see above project descriptions for each technology), this study will focus on pilot performance with respect to water quality, treatability, and acceptance for potable reuse. The study will include comprehensive water quality testing of the product water for chemical constituents and microorganisms, determination of virus log removal via seeding studies with MS2 coliphage, confirmation of suitability of the product waters for subsequent UV/AOP treatment, and cost analysis that will be completed by Carollo Engineers in collaboration with R&D staff.

Project Updates

Current

• The first comprehensive chemical water quality analysis of permeate from CCRO and FO pilots were completed in Q1 2019.Initial data review for the CCRO pilot indicates good permeate water quality; FO-RO data is not yet reviewed.

• Carollo team analysis is ongoing for CCRO and FO-RO cost/footprint estimate, which requires development of process flow diagrams and coordination with the technology providers.

Future

• The second and third comprehensive chemical water quality sampling events for permeate from CCRO and FO pilots will be completed in Q2 2019. A subset of the events will include pilot feed water characterization.

• Cost and physical footprint evaluation of each technology (CCRO and FO-RO) will be completed by Carollo.

• Assessment of technology virus removal will be completed via MS2 coliphage spiking (challenge test) into the pilot feed.

• UV/AOP pilot studies will be conducted to evaluate suitability of UV/AOP for treatment of CCRO and FO product water.

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=2ahUKEwj1wrCnqZXaAhVE1GMKHVSBBwEQjRx6BAgAEAU&url=https://en.wikipedia.org/wiki/United_States_Bureau_of_Reclamation&psig=AOvVaw2XfpwQJJNEL4o5j2gRSWh4&ust=1522543132233617


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Method Development

Project: Utility Validation of Alternative Method for NDMA Analysis


Start Date/Expected Completion: Fall 2017 to Spring 201p

External Funding: Yes (WRF)

This project is funded by WRF to validate a novel NDMA benchtop analysis method that requires less

time, cost, and sample volume, and has potential for online (real-time) use. The method was developed

by Professor Hitoshi Kodamatani (Kagoshima University, Japan) and has been adapted to recycled

waters (Professor Takahiro Fujioka, Nagasaki University, Japan). Professors Kodamatani and Fujioka are

advisors on the WE&RF study and have loaned OCWD the prototype detector. R&D staff obtained and

repurposed a high performance liquid chromatography (HPLC) instrument that was no longer needed by

the OCWD AWQAL. The method couples the HPLC with automated photochemical reaction (PR) and

chemiluminescence (CL) detection of NDMA and other nitrosamines. The HPLC-PR-CL method is able to

quantitate NDMA to approximately 2 ng/L. Through this study, the method will be tested for

reproducibility, detection limit, matrix interference, and will be compared to AWQAL split sample results.

Project Updates

Current

• The draft final report was reviewed by the PAC and returned to OCWD. R&D staff and

Dr. Shannon Roback addressed the PAC’s comments and made corrections to the report. The

final report was submitted to WRF for publication by WRF.

Future

• The WRF final report on the validation of the HPLC-PR-CL method for NDMA quantitation will be

made available to WRF subscribers and the water reuse industry.

• A manuscript will be drafted for journal publication to describe the overall method validation.


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Advanced Treatment Processes

Project: Determination of Enteric Virus Log Reduction Values (LRVs) from Orange

County Sanitation District Plant No. 1 and No. 2

R&D Staff Contacts: Jana Safarik, Julio Polanco

Start Date/Expected Completion: Spring 2018 – Winter 2020


R&D will lead a study partnered with the Orange County Sanitation District (OCSD) to evaluate the

OCSD’s Plant No. 1 and Plant No. 2 facilities for enteric virus concentrations in raw wastewater and

secondary treated effluents, in order to determine log removal values (LRVs). LRV is a measure of the

percent removal, in this case for viruses during wastewater treatment. The study will provide information

and data for determining LRVs to be applied toward the pathogen control requirements for OCWD’s

GWRS facility, found in Groundwater Recharge Reuse Project (GRRP) regulations adopted into Title 22.

It will also provide valuable information on the concentration of human viruses in OCSD’s raw water. The

study objectives are to determine the concentration of enteric viruses and specific microbial indicators in

OCSD’s raw wastewater influent at both OCSD’s plants, to determine the concentration of the same

enteric viruses and microbial indicators in OCSD activated sludge effluents (Plant No. 1), trickling filter

effluent (Plant No. 1), and trickling filter/solids contact effluent (Plant No. 2), perform a final statistical

analysis to determine the LRV for each process, and finally to recommend an overall LRV “credit” to be

assigned to the wastewater treatment process that occurs upstream of the AWPF. With regulatory

approval, this could be applied toward the AWPF potable reuse requirements for virus removal (total of 12

logs of virus removal required from raw OCSD influent to AWPF finished product water).

Project Updates

Current

• Work is ongoing to revise the draft test plan, prepared for the State Water Resources Control

Board - Division of Drinking Water (DDW) and previously reviewed by the National Water

Research Institute (NWRI) GWRS Independent Advisory Panel, Microbiological Subcommittee, in

order to address two rounds of DDW comments that have been received.

• Michigan State University (MSU) provided ongoing support to R&D staff regarding edits to the

test plan. A significant addition was the expansion of analyses to include Droplet Digital PCR

(ddPCR).

• R&D staff were notified that two separate proposals for grant funding for this project were both

successful – these are grants from the Metropolitan Water District (MWD) Future Supply Actions

Program and WRF Subscriber Priority Program.

• R&D staff are completing ongoing preparation for the first sampling event (e.g., sampling site

visits, construction of support apparatus for sampling, ordering supplies) with support from Mark

Greening of Water Quality Department.


Page 18

Future

• R&D staff will finalize the test plan and submit to DDW, then begin a one-year long virus

monitoring program at OCSD Plant No. 1 and No. 2.

Project: Characterization of AWPF Feed Water




The feed water for the AWPF is a combination of trickling filter (TF) and activated sludge effluent (ASE) from the Orange County Sanitation District (OCSD) Plant No. 1, which possesses significant particulate loading and effluent organic matter (EfOM). The addition of SEFE tanks (secondary effluent flow equalization) into AWPF in 2015 may also have associated water quality issues for the feed water stream. The SEFE tanks at the AWPF are upstream of the introduction of TF effluent and thus contain only ASE. Both the SEFE volume and TF:ASE ratio are dependent on OCSD’s day to day operational parameters. These factors can contribute to rapid fouling of MF membranes with consequent loss of performance. Previous studies (Safarik, 2005, 2012) revealed that much of the material responsible for MF fouling appears to be biological debris. Carbohydrate, protein, and lipids were all identified on the surface and membrane matrices of fouled MF membranes. Much of the previous work was completed with ASE as the feed water. The aim of this project is to further elucidate and improve our understanding of the nanoparticulate and organic character of the foulants found in EfOM of AWPF feed water and their effect on MF fouling. Samples of ASE and TF from Plant No. 1 and the SEFE tanks will be characterized by three-dimensional excitation-emission matrix (EEM), nanoparticle size and distribution as well as other laboratory assays such as polysaccharide and protein. Project Updates Current

• Monthly AWPF feedwater grab samples were collected to measure fluorescence (EEM).

• Nanoparticle analysis was not performed due to lack of availability of a nanoparticle analyzer.

Future

• Monthly grab samples of AWPF feed water fractions will continue to be collected and analyzed for fluorescence (EEM).

Project: Cartridge Filter Performance Evaluation using Rapid ATP Assay




Begun in 2015 in collaboration with Water Production Department (WP), R&D will continue monitoring the AWPF cartridge filters (CF) water quality for levels of adenosine triphosphate (ATP) as a surrogate for microbial activity using the Rapid LuminUltra Technologies kit method. Increased ATP levels in the CF effluent (RO feed water) has been found to serve as a good indicator of RO biofouling potential. Bacterial growth in the CFs can result in decreased RO feed water quality, increased pressures in CF vessels, and decreased RO membrane performance. The results from this study helped to develop a Water Production


Page 19

(WP) Department SOP for CF maintenance. When CF differential pressures (dP) begin to rise, WP initiates individual CF vessel chlorine soaks and flushes. The purpose of the chlorine soaks is to reduce microbial activity inside the CF vessels. The CF vessels are flushed after a 2-hr chlorine soak to remove the inactivated microbial biomass. Based on this study, additionally staff developed and implemented new operational procedures to perform deadhead flushes of the CF system after plant shutdowns immediately prior to plant startups. The flushes move loose filter material (microbial biomass) out of the system to waste before bringing the plant online, preventing the material from reaching the RO membranes. R&D will continue measuring and providing this data to Operations staff.

Project Updates

Current

• No R&D activity for this period.

Future

• As needed, R&D will continue measuring and providing ATP data from CFs to Operations staff.

Project: Novel Online Surrogates to Monitor Reverse Osmosis Performance in

Reuse Applications

R&D Staff Contacts: Jana Safarik, Megan Plumlee

Start Date/Expected Completion: Spring 2018 to Winter 2020

External Funding: Yes (USBR DWPR grant)

Reverse osmosis (RO) is a widely accepted treatment technology in reuse scenarios, serving as a physical barrier to pathogens and most dissolved constituents. However, for potable reuse, pathogen removal credit for RO systems is dependent upon proving continuous integrity of the membranes, usually through online monitoring of a surrogate for virus rejection. Traditional surrogates, such as total dissolved solids and total organic carbon, demonstrate 1-2 logs of removal credit. These values are much lower than the 6 logs of virus removal demonstrated by RO in past studies. In order to obtain greater log removal credits, new surrogates are necessary. This project aims to identify better surrogates that can be measured with practical online monitors to enable continuous monitoring of RO performance for reuse scenarios, where demonstrating pathogen log removal is critical to public health. The proposed surrogates will be compared to the TOC and conductivity removals and ranked based by highest to lowest log removal by RO. The following surrogates will be tested: fluorescence of dissolved organic matter, ATP, nanoparticles, sulfate ion, and phosphate ion. These are already present in the RO feed water, thus spiking is not required. Surrogate monitoring will be done on a 5-MGD RO train in the AWPF RO facility. Online instrumentation will be installed on the feed and permeate sides.

Project Updates

Current

• One EZ-ATP instrument was installed on the RO feed water of a 5-MGD RO unit in the RO

facility. A second unit was installed on the RO permeate to allow paired free ATP monitoring for

calculation of continuous ATP removal by RO.


Page 20

• Preliminary tests showed a log removal value (LRV) of ≥2.5 could be achieved across the RO

based on free ATP monitored using one EZ-ATP instrument. The data also showed a diurnal

pattern where RO feed and permeate free ATP spiked between 10 am and 2 pm each day.

• Both AZ-ATP analyzers had to be returned to the manufacturer (Hach) due to Hach urgent

request, shortening the expected duration of sampling data desired for this study.

• Grab samples for sulfate and strontium were collected with enough frequency to determine

diurnal fluctuations and any corresponding changes in log removal, simulating the use of an

online monitoring system (i.e., for sulfate). Autosamplers were used to collect hourly grab

samples. Same-day laboratory analysis of paired RO feed and RO permeate demonstrated 2.5 –

3 logs of sulfate removal and 3 – 3.4 logs of strontium removal. Based on grab sampling, these

ions were identified as potential surrogates since they are present in the AWPF feedwater at high

enough to concentrations to quantify a relatively large removal across the RO membranes.

Future

• R&D staff will explore options with Hach to obtain another EZ-ATP analyzer, such as discounted

rental or purchase. Relatedly, R&D will work with Hach scientists to determine the feasibility of

using one ATP instrument to analyze both ROF and ROP measurements.

• R&D staff will schedule a weekend and midweek 24-hr sampling event for sulfate and phosphate

ions to further measure water quality diurnal and daily variations.

Project: UV/H2O2 Characterization and Optimization Studies

R&D Staff Contacts: Ken Ishida



During UV/AOP treatment, UV irradiation and HO• radicals derived from hydrogen peroxide (H2O2) are

not solely responsible for bringing about oxidation; combined chlorine species (mono- and di-chloramine)

present in the UV/AOP feed water may also play a significant role. R&D continues to investigate removal

of 1,4-dioxane at varying H2O2 and combined chlorine levels utilizing the onsite UV/AOP pilot reactor

under conditions that simulate the operation of the full-scale UVPhox. Studies focus on identifying the

conditions for which optimal 1,4-dioxane removal occurs, based on past data suggesting synergistic

effects of chloramine and H2O2. This project overlaps significantly with ongoing partner studies with

University of California, Riverside (UCR) described below and CSULB and involves experiments

coordinated with the university partner studies.

Project Updates

Current

• Work over this period has been tied to R&D’s collaboration with Professor Haizhou Liu at UCR

and the study of UV/monochloramine AOP. Postdoctoral research Dr. Kiranmayi Mangalgiri, and

graduate students Sam Patton and Liang Wu, have conducted UV pilot reactor experiments with

assistance from R&D staff (see next project below.)


Page 21

Future

• R&D staff continue to conduct pilot experiments in collaboration with graduate students and post

doc from Dr. Liu’s research group at UCR tied to NSF and USBR research grants (see next

project below).

Project: Kinetics Modeling and Experimental Investigation of Chloramine

Photolysis in Ultraviolet-Driven Advanced Water Treatment


Start Date/Expected Completion: Summer 2017 – Winter 2019

External Funding: No (WRF funding to UC-Riverside, not OCWD)

OCWD is a partner in University of California, Riverside (UCR)-led projects that have been awarded

funding by the Water Research Foundation (WRF) for Professor Haizhou Liu of the Department of

Chemical and Environmental Engineering to build on the development of computational kinetic models

from previous UCR studies funded by OCWD. Dr. Liu models radical chemical reactions in the UV/AOP at

AWPF to predict destruction of target compounds (e.g., NDMA, 1,4-dioxane) under various oxidant and

source water conditions. The WRF project, Project 4699, has investigated the use of mono- and di-

chloramine as oxidants with comparison to the UV/H2O2 AOP. These oxidants can produce unique

reactive species under UV photolysis, and the solution chemical conditions (e.g., pH; dose of oxidant) can

be optimized through computational modeling to maximize contaminant degradation, minimize the

chemical dosage cost and minimize the energy cost of the UV/AOP of the AWPF. The multivariate

computational kinetic model utilizes reaction rate constants obtained from literature and measured directly

by Dr. Stephen Mezyk of CSULB /RadKEM from complimentary ongoing R&D collaborations. The

predictions of the computational kinetic models will be validated using OCWD’s UV/AOP pilot reactor. The

WRF project is expected to be completed in Spring 2019.

Project Updates

Current

• Dr. Mangalgiri and R&D staff responded to comments from the PAC on the draft final report. The

final version of the report was submitted to WRF.

Future

• The final WRF report on the Kinetic Modeling and Experimental Investigation of Chloramine

Photolysis in Ultraviolet-Driven Advanced Water Treatment will be made available to subscribers

and the water reuse industry.


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Project: Experimental Investigation of Chloramine and Persulfate Aqueous

Photochemistry and Development of Efficient Ultraviolet-Based Water Treatment


Start Date/Expected Completion: Spring 2015 – Fall 2019

External Funding: No (NSF funding to UC-Riverside, not OCWD)

OCWD is a partner in University of California, Riverside (UCR)-led project that has been awarded funding

by National Science Foundation (NSF) for Professor Haizhou Liu of the Department of Chemical and

Environmental Engineering to build on the development of computational kinetic models from previous

UCR studies funded by OCWD. Dr. Liu models radical chemical reactions in the UV/AOP at AWPF to

predict destruction of target compounds (e.g., NDMA, 1,4-dioxane) under various oxidant and source

water conditions. The NSF GOALI project will investigate the feasibility of using persulfate as an oxidant

along with continued research into the use of monochloramine as an oxidant for the UV/AOP. These

oxidants can produce unique reactive species under UV photolysis, and the solution chemical conditions

(e.g., pH; dose of oxidant) can be optimized through computational modeling to maximize contaminant

degradation, minimize the chemical dosage cost and minimize the energy cost of the UV/AOP of the

AWPF. The multivariate computational kinetic model utilizes reaction rate constants obtained from

literature and measured directly by Dr. Stephen Mezyk of CSULB /RadKEM from complimentary ongoing

R&D collaborations. The predictions of the computational kinetic models will be validated using OCWD’s

UV/AOP pilot reactor. The NSF project is expected to be completed in Fall 2019.

Project Updates

Current

• In February at the IUVA World Congress in Sydney Australia, an award for the Best UV Research

Paper 2017–18 was presented to the authors of the EST AOP publication:

Samuel Patton, Mariano Romano, Vincenzo Naddeo, Kenneth P. Ishida, and Haizhou Liu.

Photolysis of Mono- and Dichloramines in UV/Hydrogen Peroxide: Effects on 1,4-Dioxane

Removal and Relevance in Water Reuse. Environmental Science & Technology, 2018, DOI

10.1021/acs.est.8b01023.

• Investigations associated with OCWD have been more heavily focused on the UV/chloramine

aspect of AOP, as they relate to the AWPF. UCR graduate students and postdoc completed

bench-scale experiments investigating 1,4-dioxane, and acetone removal by UV/monochloramine

and UV/HOCl advanced oxidation.

Future

• UCR graduate students and post doc together with R&D staff will continue to investigate

contaminant removal by UV/AOP with chloramines. UV/persulfate oxidant studies that were

delayed will be implemented in the coming quarter. R&D staff will continue to work with graduate

students Sam Patton and Liang Wu and postdoc Dr. Mangalgiri.


Page 23

Project: Innovative Water Reuse Systems Harnessing Chloramine

Photochemistry for Potable Water Reuse


Start Date/Expected Completion: Winter 2019 – Fall 2020

External Funding: Yes (USBR funding to UC-Riverside and OCWD)

OCWD is a partner in a University of California, Riverside (UCR)-led project that has been awarded

funding by the U.S. Bureau of Reclamation (USBR) for Professor Haizhou Liu of the Department of

Chemical and Environmental Engineering to investigate the feasibility of using residual chloramines as an

oxidant in combination with small amounts for hydrogen peroxide as a mixed oxidant for the UV/AOP.

These oxidants can produce unique reactive species under UV photolysis, and the solution chemical

conditions (e.g., pH; dose of oxidant) can be optimized to maximize contaminant degradation, minimize

the chemical dosage cost and minimize the energy cost of the UV/AOP of the AWPF. The USBR project

is expected to be completed in Fall 2020.

Project Updates

Current

• UCR has begun carrying out laboratory and pilot research tasks during the current “pre-award”

period (before the grant contract is in place). UCR graduate students and postdoc together with

R&D staff ran a series of pilot UV reactor experiments investigating the removal of organics by

UV/H2O2 and UV/chloramines, using TCE as a model compound.

Future

• R&D staff will continue to support UCR in the research tasks.

• USBR will complete audit of the research team’s budget proposal, including cost share from

OCWD, after which the grant contracts will be developed (USBR-UCR prime contract and UCR-

OCWD sub-awardee contract).

Project: Quantifying Chlorine Atom Radical (Cl•) Chemistry Under Orange County

Water District Advanced Oxidation Process Conditions


Start Date/Expected Completion: November 2018 to June 2019


This is a collaborative research project with Professor Stephen Mezyk from California State University,

Long Beach (CSULB), Department of Chemistry and Biochemistry to investigate and quantify the

formation of the chlorine atom radical associated with the advanced oxidation process and its reaction

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=2ahUKEwj1wrCnqZXaAhVE1GMKHVSBBwEQjRx6BAgAEAU&url=https://en.wikipedia.org/wiki/United_States_Bureau_of_Reclamation&psig=AOvVaw2XfpwQJJNEL4o5j2gRSWh4&ust=1522543132233617


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with constituents in OCWD’s recycled wastewater. This project was a continuation of our effort to

understand the complex chemical dynamics of the UV/H2O2 AOP in the presence of chloramines.

Project Updates

Current

• Dr. Mezyk submitted a proposal to determine the reactivity and importance of the Cl• radical with

important wastewater matrix chemicals (nitrite, bicarbonate, dissolved organic matter) and

representative chemicals from several contaminant classes (1,4-dioxane, nitrosamines, NDMA

precursors, etc.) applicable to OCWD’s AOP.

• Kinetic measurements were made utilizing the laser flash photolysis facilities at the Radiation

Research Laboratory at University of Notre Dame, Indiana.

• Cl• radical rate constants were determined for nitrite, carbonate, hydrogen peroxide, and NDMA.

Future

• To complete the project, additional experiments on other chemicals/wastewater constituents will

be undertaken. At present additional reagent used to form the Cl• radical is being synthesized and

purified.

• Data from this study will be included in a future publication and presentation at a scientific

conference.

Project: Trojan Technologies UV/HOCl, UV/H2O2, and UV/chloramine Pilot Studies




The water reuse industry has begun to transition from implementing UV/H2O2 AOP (as done at OCWD’s

plant) to UV/HOCl, i.e. UV/free chlorine. While some utilities currently use UV/HOCl, the chemical

dynamics are not well understood and the efficiency of the process relative to UV/H2O2 is not well

defined. Over the past two years Trojan Technologies has expressed an interest to conduct AOP studies

at OCWD using OCWD’s single-lamp pilot UV reactor, including for UV/HOCl research. At the end of

2017, Trojan made available an eight-lamp UV pilot reactor for delivery to OCWD, currently located in the

RO building. Trojan and R&D staff will run a series of pilot-scale experiments to characterize the

UV/HOCl AOP.


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Project Updates

Current

• In mid-January, Trojan technicians commissioned the pilot reactor by installing 4 UV lamps into

the reactor (that can accommodate 8 lamps) and ran a number of dosing experiments with

hydrogen peroxide to determine the hydraulic retention time at various flow rates.

• In late-February, Trojan scientists, Dr. Mihaela Stefan, Alan Royce, and Dr. Minhwan Kwan ran a

series of experiments over four days investigating UV/HOCl, UV/H2O2, and UV/chloramine AOP

under various conditions.

Future

• Currently, there are no future studies planned for the Trojan pilot reactor. It will remain onsite until

Trojan relocates it to another facility or OCWD requests its removal.

Groundwater Recharge Optimization and Monitoring

Project: Desilting Demonstration Project Phase III Support

R&D Staff Contacts: Christine Pham

Start Date/Expected Completion: 2013 – Fall 2019


Led by the Planning Department (Adam Hutchinson), this project assesses the field-scale performance of

a riverbed filtration system placed below the off-river facilities (i.e., ‘riverbed filtration system’) to desilt

Santa Ana River and provide this as recharge water to Olive Basin. R&D staff at the Field Research

Laboratory (FRL) in Anaheim provide support for this project in the form of water sample collection and

analyses (total suspended solids [TSS], turbidity and particle profile/distribution). FRL staff also change

the experiment configurations by opening and closing lateral valves: Hydraulic testing is done by turning

laterals on and off to test whether certain lateral types (slotted PVC pipes vs. rain tanks) or the direction

of surface water flow relative to the laterals (parallel or perpendicular) lead to a greater amount of

collected, desilted water.

Project Updates

Current

• Olive Basin system: New flow instrumentation will be replaced and relocated at the effluent site of

the Olive basin system. Lateral testing is delayed due to this flowmeter replacement project.

o TSS sampling continues to be scheduled alongside CEC sampling by the Water Quality

Dept.

• SAR system: Expanding the project scope, a pilot riverbed filtration unit was installed in the Santa

Ana River (SAR) channel.

o R&D staff conducted TSS and temperature sampling during storm events to quantify the

system’s suspended solids removal efficacy

• R&D is drafting a Materials and Methods section for a future internal report.


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Future

• R&D will continue lateral testing and water sampling and analysis in Olive Basin system pending

replacement and relocation of the effluent flow instrumentation.

• R&D will continue water quality sampling and analysis on the pilot SAR system

• The project team is planning to simulate a high suspended solids loading event in the SAR

channel to test the system’s TSS removal capacity, given that the intent of the system is to

evaluate percent removal of TSS given high loads expected for SAR compared to the weir

system feeding Olive Basin.

Project: Miraloma Basin Percolation Decline Column Study

R&D Staff Contacts: Christine Pham, Ricardo Medina

Start Date/Expected Completion: Fall 2015 to Fall 2020


Through this project, R&D is evaluating potential cause(s) of the observed percolation rate decline at

Miraloma Basin which receives 100% AWPF finished product water. The observed clogging has resulted

in decreased cleaning intervals from every 12 months to every 3-6 months since the basin was initiated in

2012. A new basin (La Palma Basin) on line since November 2016 is also dedicated to AWPF finished

product water recharge, and there is concern that this basin may exhibit similar behavior. R&D is running

column studies using Miraloma Basin sand that compare clogging rates between different water types

including: finished product water from AWPF, water collected at the end of the GWRS pipeline at

Miraloma, water collected from Miraloma Basin, and GWRS pipeline water near Mid Basin Injection (MBI)

from before and after pipeline epoxy coating. The study plan includes water quality testing. The purpose

of epoxy coating is to prevent pipeline deterioration from exposure to GWRS water. Epoxy coating was

completed in Fall 2018 by engineering staff for GWRS pipeline Unit I. It may have additional benefits to

reduce basin clogging and by extension, injection well clogging. The MBI phase of the column study will

help confirm these assumed benefits with respect to clogging potential. For example, if columns fed with

water from the epoxy-coated pipeline clog at a rate identical to the FPW-fed columns, this will indicate

that the coated pipeline fully preserves the GWRS water quality.

Project Updates

Current

• Column testing at the Miraloma site is completed and data analysis for a draft manuscript is

ongoing. Performance results thus far show that percolation rate for columns fed with finished

product water (FPW) from AWPF declined much more slowly compared to columns fed water

from the end of the GWRS pipeline at Miraloma or Miraloma Basin water, and that comparing the

latter two, columns fed with water from the end of the GWRS pipeline declined more slowly than

columns fed with water from Miraloma Basin. Overall, this suggest that during surface recharge of

FPW, fouling potential (pond bottom clogging) is contributed principally from transit through the

pipeline with only minor to moderate additional contribution to fouling potential from

environmental exposure factors related to the surface pond itself.

• Replicate experiments were conducted at the AWPF site (FPW columns) to confirm past

percolation decay curves.

• The additional experimental variation is ongoing to test column performance before and after

epoxy coating of the conveyance pipe’s inner lining (Unit I) to the Mid Basin Injection site. Results


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will demonstrate whether or not epoxy coating reduces the clogging potential of the conveyed

FPW from the AWPF to MBI.

• Monthly water quality samples have been collected and analyzed by the OCWD Laboratory and

FRL for the pre-epoxy coating experiments; sampling continues for the post-epoxy experiments.

Data analysis for reporting is ongoing.

Future

• Column performance and water quality data will be compiled and evaluated, and an internal

report or journal publication will be completed. Additional characterization of the clogging material

collected from the basin and columns is to be determined.

Project: FODTS to Measure Percolation Rate in La Palma Basin

R&D Staff Contacts: Ricardo Medina, Christine Pham

Start Date/Expected Completion: Summer 2016 – ongoing


R&D collaborated with California State University, Long Beach (CSULB) to install a fiber optic distributed

temperature sensing (FODTS) system to monitor percolation rates at La Palma Basin. This basin was

constructed in the Fall of 2016 and is exclusively dedicated to the recharge of GWRS advanced treated

recycled water. The FODTS technology utilizes heat as a tracer of infiltration and provides improved

resolution of percolation rates throughout the study site compared to traditional water balance methods.

By tracking spatial and temporal variations of infiltration rates across the basin, FODTS can reveal

specific areas where clogging occurs and help optimize operations by improving cleaning strategies

which enhance long-term basin performance. R&D has evaluated the first year and a half of data and will

continue collecting data to help develop a long-term dataset, identify regions of higher or lower

percolation, and evaluate FODTS’s utility for improved basin management (e.g., cleaning). The project

will likely transition to a long-term study because the FODTS system has been permanently installed at La

Palma Basin, enabling continued evaluation of data over time.

Project Updates

Current

• OCWD staff analyzed data for the first two years of the La Palma basin operations. Results show

dynamic spatial-temporal changes in infiltration rates throughout the basin. Regions with

generally high infiltration rates and regions with generally low infiltration rates were identified.

Further data analysis is ongoing.

• Four autonomous temperature loggers (Onset HOBO loggers) were deployed and installed on the

south sub-basin to estimate infiltration alongside the surface cable, as a potential replacement to

the use of surface FODTS for measuring surface water temperature. Preliminary results


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suggested that two loggers on each basin does not offer enough spatial resolution to obtain

accurate infiltration rates to replace surface FODTS. Further evaluation is ongoing.

• In this period R&D conducted a basin-wide experiment to understand the effectiveness of

different cleaning strategies, as a demonstration / evaluation of one of the proposed potential

uses of FODTS for MAR applications. R&D and Recharge Operations staff worked to clean the

north sub-basin (west-side near the pumphouse and the northeast corner) by removing only the

top layer (algal/clay chips). The south sub-basin remained uncleaned. Data is currently being

evaluated to understand the effect different cleaning strategies have on the short- and long-term

infiltration rates of the basin.

• R&D staff presented the findings from the ‘Targeted Cleaning Experiment’ (described above) at

the WateReuse Annual California Conference held on March 17-19 in Garden Grove, CA.

Future

• R&D staff will evaluate the feasibility of using autonomous temperature loggers to replace the

surface cable. R&D staff will develop a method to incorporate data from multiple loggers into the

FODTS algorithm.

• R&D will continue collecting temperature data using paired fiber optic cables (subsurface-surface)

and autonomous temperature loggers. Data collection and analysis is ongoing. Staff will process

FODTS data to evaluate infiltration changes over long periods of time.

• The project team will prepare publications related to this project.

Reporting Period Publications

Shannon L. Roback, Imma Ferrer, E. Michael Thurman, Kenneth P. Ishida, Megan H. Plumlee, Andrew Poustie, Paul Westerhoff, and David Hanigan. Non-Target Mass Spectrometry Analysis of NDMA Precursors in Advanced Treatment for Potable Reuse. Environmental Science: Water Research & Technology, 4, 1944-55, 2018. Edwin A. Roehl, David A. Ladner, Ruby C. Daamen, John B. Cook, Jana Safarik, Donald W. Phipps and Peng Xie, 2018. Modeling Fouling in a large RO System with Artificial Neural Networks. Journal of Membrane Science 552, 95-106.

Reporting Period Conference Presentations/Posters

Jason Dadakis, Shannon Roback, Megan H. Plumlee, Hitoshi Kodamatani, Takahiro Fujuika. Rapid Low-Volume Method for N-Nitrosamine Analysis in Recycled Water for Benchtop or Online monitoring (Presentation). SETAC North America 39th Annual Meeting, Sacramento, California, November 4-8, 2018. Elizabeth D. McKenna, Shannon Roback, Imma Ferrer, E. Michael Thurman, Kenneth P. Ishida, Megan H. Plumlee, Andrew Poustie, Paul Westerhoff, David Hanigan. Non-target mass spectrometry analysis of NDMA precursors in advanced treatment for potable reuse (Poster). Nevada Water Environment Association Annual Conference, Reno, Nevada, January 29-30, 2019.


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Shannon Roback, Kenneth P. Ishida, Megan H. Plumlee, Yi-Hsueh Chuang, Zhong Zhang, William Mitch. Comparison of UV/hydrogen peroxide, UV/free chlorine and UV/monochloramine for the removal of NDMA and NDMA precursors (Presentation). 2019 IUVA World Congress, Sydney, Australia, February 10-13, 2019. Jana Safarik, Ganesh Rajagopalan, Megan H. Plumlee. Removal of Colloidal Particles Through Online Monitoring to Lower Microfiltration Membrane Fouling (Presentation). MTC19, New Orleans, LA. Feb. 25-28, 2019. Jana Safarik, Megan H. Plumlee, Eileen Y. Idica, Aleks Pisarenko, Rhodes Trussell, Shane Trussell, Rodrigo Tackaert. Adenosine Triphosphate as an Online Surrogate to Monitor Reverse Osmosis Performance and Integrity in Reuse Applications (Presentation). WateReuse California Annual Conference, Garden Grove, CA, March 17-19, 2019. Ganesh Rajagopalan, Jana Safarik, Megan H. Plumlee. Colloidal Particles Removal through Online Monitoring to Lower Membrane Fouling (Presentation). WateReuse California Annual Conference, Garden Grove, CA, March 17-19, 2019. Erik Desormeaux, Olgica Bakajim, Han Gu, Megan H. Plumlee, Yi-Hsueh (Brad) Chuang, William Mitch. DPRShield: Piloting a New Treatment Process to Increase Recovery at OCWD (Presentation). WateReuse California Annual Conference, Garden Grove, CA, March 17-19, 2019. Ricardo Medina, Christine Pham, Megan H. Plumlee, Matthew W. Becker, Patrick J. O’Connell. Use of Distributed Temperature Sensing to Evaluate Groundwater Recharge Basin Cleaning Strategies (Presentation). WateReuse California Annual Conference, Garden Grove, CA, March 17-19, 2019. Megan H. Plumlee, David Hokanson, William Mitch, Scott Fendorf, Jason Dadakis, Shane Trussell. Evaluating Post Treatment Challenges for Potable Reuse Applications (Presentation). WateReuse California Annual Conference, Garden Grove, CA, March 17-19, 2019. Shannon Roback, Kenneth P. Ishida, Megan H. Plumlee, Yi-Hsueh (Brad) Chuang, Zhong Zhang, William Mitch. Comparison of UV/AOP oxidants including free chlorine for the removal of DBPs, their precursors, and DBP-associated toxicity (Presentation). WateReuse California Annual Conference, Garden Grove, CA, March 17-19, 2019.

Participating Utility Projects

OCWD participates in collaborative research with universities and other partners, often facilitated by R&D

staff, in which OCWD provides water samples, data, operating history, and other support as an in-kind

contribution to a partner-led study. In this role, OCWD is referred to as a “participating utility”. Current

projects in which R&D or other District staff are coordinating OCWD participation include the following,

with the OCWD project representative listed:

Water Research Foundation (WRF)

• Building-Scale Treatment for Direct Potable Water Reuse & Intelligent Control for Real Time

Performance Monitoring, WRF 4691 (Megan Plumlee)

• Understanding the Impacts of Wastewater Treatment Performance on Advanced Water treatment

Processes and Finished Water Quality, WRF 17-05 (Mehul Patel and Megan Plumlee)

• DPR-4: Project Description for Treatment for Averaging Potential Chemical Peaks (SWRCB

Direct Potable Reuse [DPR] Research) (Megan Plumlee)


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• Integrating Management of Sensor Data for a Real Time Decision Making/Response System,

WRRF 14-01 (Mehul Patel and Megan Plumlee)

• Considerations and Blending Strategies for Drinking Water System Integration with Alternative

Water Supplies, WRF 4953 (District contact TBD / Mehul Patel and Megan Plumlee)

United States Geological Service (USGS)

• “Hydrodynamic Enhancement of Nitrate Attenuation by Integrating Reactive Biobarriers into

Shallow, Open Water Treatment Wetlands”. PI: Josh Sharp, Colorado School of Mines. (Christine

Pham and Megan Plumlee)

National Science Foundation

• National Science Foundation CAREER: “Grid Symbiotic Desalination: Enabling Renewable

Energy Integration Through Demand Side Regulation of Membrane and Electrochemical

Separation Technologies”. PI: Roland D. Cusick, University of Illinois at Urbana Champaign.

(Han Gu)

• National Science Foundation INTERN: Program – Non-Academic Research Internships for

Graduate Students, to facilitate NSF-project funded graduate students to get technical experience

outside of an academic setting. This grant was obtained by UC Riverside existing project

collaborators as supplemental funding for their ongoing UV-AOP studies utilizing OCWD site and

pilot. PI: Haizhou Liu, UC Riverside (Megan Plumlee)

National Institutes for Water Resources (NIWR)

• NIWR/USGS “The Role of Environmental Buffers in Potable Water Reuse”. PI: Olya Keen;

Graduate student: Xueying Brown (Wang), University of North Carolina at Chapel Hill. R&D staff

reviewed, edited, and provided comments on the section of the draft final report tied to samples

collected at the AWPF, La Palma Basin monitoring well, and Prado Wetlands. The draft report

was due to the funding agency on March 31st. (Ken Ishida)

• NIWR/USGS “Human and Ecological Health Impacts Associated with Water Reuse: Engineered

Systems for Removing Priority Emerging Contaminants”. PI: Susan Richardson, University of

South Carolina. (Pat Versluis and Jason Dadakis)

National Institute of Environmental Health Sciences (NIEHS)

• NIEHS T32 Training Grant in Environmental Toxicology "Constructed Wetland Treatment of

Fipronil and Pyrethroid Insecticides. PI: Jay Gan; Graduate student: Zachary Cryder, University of

California, Riverside. (Christine Pham)

U.S. Department of Education / Graduate Assistantship in Areas of National Need (GAANN)

Fellowship

• Assessment of the Use of Optical Measurements to Differentiate Effluent Organic Matter from

Natural Organic Matter in Water Reuse Applications. Graduate student: Sydney Ulliman; Advisor:

Karl Linden, University of Colorado, Boulder. Sydney Ulliman reported that preparation of final

report is in progress and will provide R&D with a copy of the section tied to OCWD. (Ken Ishida)


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Stantec

• Microplastics survey of the OCWD AWPF requested and led by Stantec (unfunded). Stantec

engineer project lead is Dr. Ayu Sari. A series of sampling events are planned with the first

sampling scheduled for early April. (Ken Ishida and Megan Plumlee)

UC Berkeley / NSF ReNUWIt

• The AWPF was sampled by R&D staff for low molecular weight compounds (VOCs) analysis by

graduate student Emily Marron/UC Berkeley. (Ken Ishida and Megan Plumlee)

MINUTES

JOINT PLANNING COMMITTEE April 24, 2019, 8:30 A.M.

OCWD ROLL CALL

ACTION

Jordan Brandman Cathy Green Kelly Rowe Steven Sheldon Tri Ta Ahmad Zahra

Quorum of Board: Yes

1. Status of Imported Water Supplies

Informational

2. Potential Cyclic in-lieu water deliveries

Informational

3. OCWD Update

Informational

4. Campus Issues a. Security fencing b. Visitor center concept c. MWDOC building electrical upgrade

Informational

5. OCWD MNWD storage discussions

Informational

6. South Orange County Emergency Supply Agreement

Informational

7. SARCCUP Update

Informational

8. OCWD Groundwater Charge

Informational

9. Poseidon Update

Informational

10. Next Committee Meetings - July 24 and October 23

Informational

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